US20050028723A1 - Loading dock traffic automation and inventory control system - Google Patents
Loading dock traffic automation and inventory control system Download PDFInfo
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- US20050028723A1 US20050028723A1 US10/918,799 US91879904A US2005028723A1 US 20050028723 A1 US20050028723 A1 US 20050028723A1 US 91879904 A US91879904 A US 91879904A US 2005028723 A1 US2005028723 A1 US 2005028723A1
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- Prior art keywords
- dock
- loading dock
- control panel
- inventory control
- traffic
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q10/00—Administration; Management
- G06Q10/08—Logistics, e.g. warehousing, loading or distribution; Inventory or stock management
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G69/00—Auxiliary measures taken, or devices used, in connection with loading or unloading
- B65G69/28—Loading ramps; Loading docks
- B65G69/287—Constructional features of deck or surround
- B65G69/2876—Safety or protection means, e.g. skirts
- B65G69/2882—Safety or protection means, e.g. skirts operated by detectors or sensors
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C9/00—Individual registration on entry or exit
- G07C9/20—Individual registration on entry or exit involving the use of a pass
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/22—Electrical actuation
- G08B13/24—Electrical actuation by interference with electromagnetic field distribution
- G08B13/2402—Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting
- G08B13/2451—Specific applications combined with EAS
- G08B13/2454—Checking of authorisation of a person accessing tagged items in an EAS system
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C1/00—Registering, indicating or recording the time of events or elapsed time, e.g. time-recorders for work people
- G07C1/10—Registering, indicating or recording the time of events or elapsed time, e.g. time-recorders for work people together with the recording, indicating or registering of other data, e.g. of signs of identity
Definitions
- This invention relates to apparatus for automating loading and dock traffic control.
- Truck restraints are expensive capital equipment. They are expensive to install and maintain (with parts and labor). Traffic signal dock lights have been an economical alternative.
- U.S. Pat. No. 4,010,571 discloses an automatic loading dock. This concept comprises an automatic dock leveler and dock light, but has no provisions for a ventilation fan, traffic control lights, or an inventory control system. It relies on a plurality of electro-mechanical relays and limit switches which may be prone to failure.
- U.S. Pat. No. 4,692,755 discloses a loading dock signal and control system. This concept includes traffic control lights as the sole means of communicating to personnel the status of a truck being loaded or unloaded. In addition, this concept comprises a releaseable locking device for preventing a truck from leaving the dock prior to the completion of the loading or unloading activity. Such a device is expensive to install and maintain. This invention has no provisions for a ventilation fan or an inventory control system.
- U.S. Pat. No. 4,843,373 discloses a loading dock signal and control system. This concept comprises traffic control lights, sensing devices, and a releaseable locking device for preventing a truck from leaving the dock prior to the completion of the loading or unloading activity. Such a device is expensive to install and maintain.
- This invention concept also includes sophisticated electronic means for programming the system for various modes of operation.
- U.S. Pat. No. 5,453,735 discloses a loading dock signal and control system. This concept comprises traffic control lights, sensing devices, and a releaseable locking device for preventing a truck from leaving the dock prior to the completion of the loading or unloading activity. Such a device is expensive to install and maintain.
- One object of the present invention is to provide a means to automate loading dock activities including spot lights, ventilation fans, truck traffic control lights, and dock levelers.
- Another object of the present invention is to provide means to automate inventory control systems.
- the present invention comprises a loading dock traffic and inventory control system which includes a truck control notification automation system.
- the truck control notification automation system reads a sensor electrically in the terminal strip located in the loading dock traffic and inventory control system panel. This tracking and additional safety device accompanies the traffic signal dock lights without the expense of a truck restraint.
- the truck control notification automation system is integrated and designed in the loading dock automatic and manual control system circuitry.
- the device design allows for an automatic signal to be read from the sensor as soon as the dock door is opened.
- the device design also allows for the automatic signal to be read from the sensor as soon as the dock door is closed.
- the sensor located on the building will read when a truck has backed up to the dock door and therefore signals to the truck control notification automation system when a truck approaches within a specific distance of sensing zone and electrically responds inside and outside the building. Dock employees inside the building are notified when a truck has back up to the dock by warning devices.
- the truck control notification automation system will immediately respond if the truck pre-maturely pulls away from the dock before loading or unloading is complete and dock door is not closed.
- the truck control notification automation system signals and alerts the truck driver with a warning beacon strobe located in the cab of the truck, warning beacon strobe located on the truck, the truck horn is activated, the transmission of the truck is locked, the brakes of the truck are locked, an independent signal warning device in front of the truck is activated, the truck driver is notified on his truck radio, the truck driver is notified on his phone, pager, radio or other communication devices, the audio alarm inside the cab of the truck is activated.
- the dock attendant inside the truck trailer is notified by a safety alarm light inside the truck trailer, audio alarm inside the truck trailer, beacon alarm strobe on the forklift, audio alarm on the forklift, forklift driver is notified on his phone, pager or radio or other communication devices.
- the truck control notification automation system automatically changes to free to depart alert and alarm signal.
- the computer central station that controls the computer traffic database will notify the truck driver when he or she is free to depart.
- the departure notification to the truck driver will be received by truck driver on his or her radio, phone, pager, palm pilot, laptop, beacon located in the cab of the truck, signal light in front of the truck.
- the loading dock traffic automation and inventory control system of the present invention automates the loading dock area by controlling a truck control notification automation system, traffic signal dock lights, loading dock spot light, loading dock fan and dock leveler.
- the manually operated control panel is energized or de-energized with full automation by the movement of the overhead dock door.
- the device includes a control panel enclosure mounted on the interior wall of the building next to the loading dock door. One control panel enclosure can service one or two loading dock doors.
- the selector switches for the dock leveler, loading dock fan and loading dock spot light are inoperable when the loading dock door is in the down and closed position.
- a sensing means is triggered and activated, therefore energizing the selector switches located in the control panel enclosure for the dock leveler, loading dock fan and loading dock spot light.
- the inside traffic signal dock lights automatically change from red to green and the outside traffic signal dock lights automatically change from green to red.
- the truck control notification automation system automatically updates the computer traffic database, bar code scans the truck, activates (RFID) radio frequency identification, activates (SAW) surface acoustic wave technology while changing to alert and alarm not to depart. All selector switches are operable when the loading dock door is raised.
- the loading dock door is lowered when the switches are in the on energized position, all selector switches become inoperable again and all components turn off that are associated with each specific selector switch, thus saving energy.
- the inside traffic signal dock lights automatically change from green to red and the outside traffic signal dock lights automatically change from red to green.
- the truck control notification automation system updates the computer traffic database, bar code scans the truck, activates (RFID) radio frequency identification, activates (SAW) surface acoustic wave technology while automatically changing to free to depart alert and alarm signal.
- FIG. 1 is a inside frontal view of the 480 Volt, 3 phase loading dock traffic automation and inventory control panel system, traffic signal dock lights, loading dock spot light, loading dock fans mounting and wiring detail of the present invention.
- FIG. 2 is an outside frontal view of the loading dock traffic signal dock lights and traffic signal dock light bracket mounted to the door jamb of the present invention. This figure is common to all embodiments of the present invention.
- FIG. 3A is a frontal view of the 480 Volt, 3 phase loading dock traffic automation and inventory control panel system of the present invention showing the front door closed.
- FIG. 3B is a frontal view of the 480 Volt, 3 phase loading dock traffic automation and inventory control panel system of the present invention showing the front door open.
- FIG. 3C is an illustration of the terminal strip installed in the 480 Volt, 3 phase embodiment of the present invention.
- FIG. 4 is a wiring schematic of the 480 Volt, 3 phase loading dock traffic automation and inventory control system of the present invention.
- FIG. 5A is a frontal view of the 208 Volt, 3 phase loading dock traffic automation and inventory control panel system of the present invention showing the front door closed.
- FIG. 5B is a frontal view of the 208 Volt, 3 phase loading dock traffic automation and inventory control panel system of the present invention showing the front door open.
- FIG. 5C is a side view of the 208 Volt, 3 phase loading dock traffic automation and inventory control panel system of the present invention.
- FIG. 5D is an illustration of the terminal strip installed in the 208 Volt, 3 phase embodiment of the present invention.
- FIG. 6 is a wiring schematic of the 208 Volt, 3 phase loading dock traffic automation and inventory control system of the present invention.
- FIG. 7 is a inside frontal view of the loading dock 208 Volt, 3 phase traffic automation and inventory control panel system, traffic signal dock lights, loading dock spot light, loading dock fans mounting and wiring detail of the present invention.
- FIG. 8A is a frontal view of the 120 Volt, 1 phase loading dock traffic automation and inventory control panel system of the present invention showing the front door closed.
- FIG. 8B is a side view of the 120 Volt, 1 phase loading dock traffic automation and inventory control panel system of the present invention.
- FIG. 8C is a frontal view of the 120 Volt, 1 phase loading dock traffic automation and inventory control panel system of the present invention showing the front door open.
- FIG. 8D is an illustration of the terminal strip installed in the 120 Volt, 1 phase embodiment of the present invention.
- FIG. 9 is a wiring schematic of the 120 Volt, 1 phase loading dock traffic automation and inventory control system of the present invention.
- FIG. 10 is a inside frontal view of the 120 Volt, 1 phase loading dock traffic automation and inventory control panel system, traffic signal dock lights, loading dock spot light, loading dock fans mounting and wiring detail of the present invention.
- FIGS. 1 through 4 illustrate the 480 Volt, 3 Phase, 60 Hz embodiment of the device of the present invention.
- the standard loading dock control panel for electrical dock levelers are usually one single control box system supplied with each individual specific piece of dock leveler equipment. Traditionally, control boxes are made to manually operate one specific piece of equipment. Loading dock fans and loading dock lights usually are supplied with a cord and plug for an electrical outlet.
- An advantage of the present invention is to operate loading dock equipment, track shipments and track inventory simultaneously through an automation state with or without a manual process.
- the manual process must be energized to function by way of the automation process.
- the automation dock door equipment process is controlled by a sensing means such as a limit switch, photo eye, motion detector, magnetic switch, or laser. These devices are commercially available and well known in the art.
- a sensing means such as a limit switch, photo eye, motion detector, magnetic switch, or laser.
- the device of the present invention automates the loading dock area with a traffic and inventory control panel system 10 .
- the automation process includes an optional truck control notification automation system 90 , 91 , inside traffic signal dock lights 20 , 21 , outside traffic signal dock lights 22 , 23 , loading dock spot lights 30 , 31 , loading dock fans 40 , 41 and electric dock leveler 50 , 51 .
- Supply voltage 80 is applied to loading dock traffic automation and inventory control system 10 by means of common wiring. Said voltage is applied to the circuitry inside loading dock traffic automation and inventory control system 10 by main disconnect switch 101 . When the contacts of main disconnect switch 101 are closed, power is delivered to the open contacts 116 , 117 , 118 , 119 of contactors 112 , 113 , 114 , and 115 , respectively. Power fuse blocks 105 are provided in series with said supply voltage to provide overcurrent protection. Supply voltage is further applied to transformer 120 via fuses 103 . Transformer 120 steps down the voltage to that commonly used by the components served by loading dock traffic automation and inventory control system 10 .
- sensing means 65 , 66 Prior to opening overhead dock door 60 , 61 , switches 12 / 13 , 14 , 16 / 17 , and 18 mounted to control panel face 11 are de-energized. When a truck is present at the door opening and overhead dock door 60 , 61 is opened, sensing means 65 , 66 sends a signal to control relay 150 , 151 . Sensing means 65 , 66 are commercially available devices which signal motion. Examples are an electric eye, motion detector, limit switch, or any common device.
- Control relay 150 , 151 is energized, closing contacts 152 , 153 , 154 , 155 , 158 , and 159 , and opening contacts 156 and 157 .
- the closure of contacts 152 , 153 provides electrical power to switches 12 / 13 , 14 , and 16 / 17 , 18 , respectively. An operator may now manually actuate any or all of the switches.
- Closing contacts 154 , 155 and opening contacts 156 , 157 causes inside traffic signal dock lights 20 , 21 to change color from red to green and outside traffic signal dock lights 22 , 23 to change color from green to red.
- an internal transformer and flasher 210 , 212 may be provided, which reduces the supply voltage to the inside traffic signal dock lights 20 , 21 and outside traffic signal dock lights 22 , 23 , eliminating the need for a transformer and flasher inside those devices.
- Closing contacts 158 , 159 provides a power signal to optional external devices 90 , 91 .
- these devices could be a truck bar code scanner system or a truck control device such as means to override the truck's transmission, preventing it from being moved while the loading dock door is still open.
- any combination of electric or manual dock levelers may be present.
- both doors are equipped with electric dock levelers 50 , 51 .
- Selector switches 12 , 16 are specified as ‘Dock leveler/Of/Fan’.
- Selector switches 12 , 16 are three-position spring return left to center momentary contact and lock to right switches. To operate, turn selector switch 12 , 16 to the left for a moment. This energizes dock leveler contactors 113 , 115 .
- Contacts 117 of dock leveler contactor 113 close, applying power to dock leveler motor 107 , tuning it on.
- contacts 119 of dock leveler contactor 115 close, applying power to dock leveler motor 106 .
- the switches When released, the switches spring to center while the dock leveler motors complete their operating duty cycles.
- the associated selector switch 12 , 16 would not have a dock leveler energize position. Instead, the associated selector switch 13 , 17 is a two-position switch with an off position and a fan on position only.
- Selector switches 14 , 18 are the loading dock spot light selector switches, which are turned to the right to energize loading dock spot lights 30 , 31 , respectively, and turned to the left to de-energize loading dock spot lights 30 , 31 .
- the selector switches are classified as pilot devices, 30 mm oil tight type, rugged industrial operator that are of a durable one piece casting, silver contacts carry heavy duty ratings. Selector switch has positive action indexing, attractive chrome plating on the locknut and designed to provide long, trouble free service in the most demanding industrial applications.
- sensing means 65 , 66 are triggered, signalling control relays 150 , 151 .
- Control relays 150 , 151 de-energize, opening contacts 152 , 153 , 154 , 155 , 158 , and 159 , and closing contacts 156 and 157 .
- the opening of contacts 152 , 153 removes electrical power from switches 12 / 13 , 14 , and 16 / 17 , 18 , respectively. This removes power from all devices associated with these switches, and also prevents them from being inadvertently activated, adding to safety and saving energy.
- Opening contacts 154 , 155 and closing contacts 156 , 157 causes inside traffic signal dock lights 20 , 21 to change color from green to red and outside traffic signal dock lights 22 , 23 to change color from red to green.
- opening contacts 158 , 159 sends a signal to the optional inventory control and/or truck control device 90 , 91 .
- Control panel enclosure 15 is mounted on the interior wall of the building next to loading dock door 60 .
- One control panel enclosure 15 can service one or two loading dock door areas 70 , 75 .
- the left two selector switches 12 / 13 , 14 on control panel face 11 control the left dock door area equipment and the right two selector switches 16 / 17 , 18 on control panel face 11 control the right dock door area equipment.
- Wall mount enclosure 15 includes internal mounting panel 100 to support all enclosure components.
- Control panel 15 includes main disconnect 101 with external operating handle 102 to interrupt power from the incoming 480 Volt, 3 phase power source.
- Transformer 120 for example 480/120V CPT, is provided to lower supply voltage 80 to the operating voltage associated with devices connected to the traffic and inventory control panel system, such as contactors, relays, loading dock spotlight, and traffic signal dock lights.
- Power fuse blocks 105 include fuses in each fuse block to provide a means of individual short circuit protection.
- Contactors 116 , 117 , 118 , 119 are rated to operate 480 Volt, 3 phase 60 Hz for ⁇ fraction (1/2) ⁇ horsepower motors 106 , 107 , 108 , and 109 .
- Line terminals 110 are located at the tops of contactors 116 , 117 , 118 , 119 and load terminals 112 at the bottom.
- Shading coil on the magnet insures positive sealing of the armature.
- Arc box is made of a glass filled thermoset material to prevent tracking and prevents flashover.
- Contacts are made of silver cadmium oxide.
- Fixed mount control relay 150 , 151 is supplied to operate the traffic signal dock lights, suitable for industrial use, with high contact reliability.
- the device of the present invention includes a surge suppressor on the control relay coil designed to work in conjunction with devices in this control panel.
- Control panel 15 of this invention includes terminal block 200 to wire external devices, (sensing means 60 , 65 , loading dock spotlight 30 , 31 , traffic signal dock light 20 , 21 , 22 , 23 , and optional truck control devices 90 , 91 ).
- Terminal block 200 is designed to provide ease of wiring of all external devices to the control panel. Molded material prevents tracking across terminals, large surface area permits ease of screwdriver insertion. There is a clear indication where field wires are installed; white marking strip showing a number for each wire. Screw terminals exist for ease of wiring, and there is a dedicated terminal for each external wire.
- FIGS. 2 and 5 through 7 illustrate the 208 Volt, 3 Phase, 60 Hz embodiment of the device of the present invention.
- the standard loading dock control panel for electrical dock levelers are usually one single control box system supplied with each individual specific piece of dock leveler equipment. Traditionally, control boxes are made to manually operate one specific piece of equipment. Loading dock fans and loading dock lights usually are supplied with a cord and plug for an electrical outlet.
- An advantage of the present invention is to operate loading dock equipment, track shipments and track inventory simultaneously through an automation state with or without a manual process.
- the manual process must be energized to function by way of the automation process.
- the automation dock door equipment process is controlled by a sensing means such as a limit switch, photo eye, motion detector, magnetic switch, or laser. These devices are commercially available and well known in the art.
- a sensing means such as a limit switch, photo eye, motion detector, magnetic switch, or laser.
- the device of the present invention automates the loading dock area with a traffic and inventory control panel system 10 .
- the automation process includes an optional truck control notification automation system 90 , 91 , inside traffic signal dock lights 20 , 21 , outside traffic signal dock lights 22 , 23 , loading dock spot lights 30 , 31 , loading dock fans 40 , 41 and electric dock leveler 50 , 51 .
- Supply voltage 80 is applied to loading dock traffic automation and inventory control system 10 by means of common wiring. Said voltage is applied to the circuitry inside loading dock traffic automation and inventory control system 10 by main disconnect switch 101 . When the contacts of main disconnect switch 101 are closed, power is delivered to the open contacts 116 , 117 , 118 , 119 of contactors 112 , 113 , 114 , and 115 , respectively. Power fuse blocks 105 are provided in series with said supply voltage to provide overcurrent protection. One leg of the three phase supply voltage 80 is applied to the remaining circuitry of the traffic and inventory control panel system 10 , via fuses 222 , 224 . Receptacle 220 is an optional, externally wired device used to provide electrical power for low-current applications such as a radio, bar code scanner, etc.
- switches 12 / 13 , 14 , 16 / 17 and 18 mounted to control panel face 11 are de-energized.
- sensing means 65 , 66 sends a signal to control relay 150 , 151 .
- Sensing means 65 , 66 are commercially available devices which signal motion. Examples are an electric eye, motion detector, limit switch, or any common device.
- Control relay 150 , 151 is energized, closing contacts 152 , 153 , 154 , 155 , 158 , and 159 , and opening contacts 156 and 157 .
- the closure of contacts 152 , 153 provides electrical power to switches 12 / 13 , 14 , and 16 / 17 , 18 , respectively.
- An operator may now manually actuate any or all of the switches.
- Closing contacts 154 , 155 and opening contacts 156 , 157 causes inside traffic signal dock lights 20 , 21 to change color from red to green and outside traffic signal dock lights 22 , 23 to change color from green to red.
- an internal transformer and flasher 210 , 212 may be provided, which reduces the supply voltage to the inside traffic signal dock lights 20 , 21 and outside traffic signal dock lights 22 , 23 , eliminating the need for a transformer and flasher inside those devices.
- Closing contacts 158 , 159 provides a power signal to optional external devices 90 , 91 .
- these devices could be a truck bar code scanner system or a truck control device such as means to override the truck's transmission, preventing it from being moved while the loading dock door is still open.
- any combination of electric or manual dock levelers may be present.
- both doors are equipped with electric dock levelers 50 , 51 .
- Selector switches 12 , 16 are specified as ‘Dock leveler/Of/Fan’.
- Selector switches 12 , 16 are three-position spring return left to center momentary contact switches. To operate, turn selector switch 12 , 16 to the left for a moment. This energizes dock leveler contactors 113 , 115 .
- Contacts 117 of dock leveler contactor 113 close, applying power to dock leveler motor 107 , turning it on.
- contacts 119 of dock leveler contactor 115 close, applying power to dock leveler motor 106 .
- the switches When released, the switches spring to center while the dock leveler motors complete their operating duty cycles.
- the associated selector switch 12 , 16 would not have a dock leveler energize position. Instead, the associated selector switch 13 , 17 is a two-position switch with an off position and a fan on position only.
- Selector switches 14 , 18 are the loading dock spot light selector switches, which are turned to the right to energize loading dock spot lights 30 , 31 , respectively, and turned to the left do de-energize loading dock spot lights 30 , 31 .
- the selector switches are classified as pilot devices, 30 mm oil tight type, rugged industrial operator that are of a durable one piece casting, silver contacts carry heavy duty ratings. Selector switch has positive action indexing, attractive chrome plating on the locknut and designed to provide long, trouble free service in the most demanding industrial applications.
- sensing means 65 , 66 are triggered, signalling control relays 150 , 151 .
- Control relays 150 , 151 de-energize, opening contacts 152 , 153 , 154 , 155 , 158 , and 159 , and closing contacts 156 and 157 .
- the opening of contacts 152 , 153 removes electrical power from switches 12 / 13 , 14 , and 16 / 17 , 18 , respectively. This removes power from all devices associated with these switches, and also prevents them from being inadvertently activated, adding to safety and saving energy.
- Opening contacts 154 , 155 and closing contacts 156 , 157 causes inside traffic signal dock lights 20 , 21 to change color from green to red and outside traffic signal dock lights 22 , 23 to change color from red to green. If an optional inventory control and/or truck control device 90 , 91 is installed, opening contacts 158 , 159 sends a signal to the optional inventory control and/or truck control device 90 , 91 .
- Control panel enclosure 15 is mounted on the interior wall of the building next to loading dock door 60 .
- One control panel enclosure 15 can service one or two loading dock door areas 70 , 75 .
- the left two selector switches 12 / 13 , 14 on control panel face 11 control the left dock door area equipment and the right two selector switches 16 / 17 , 18 on control panel face 11 control the right dock door area equipment.
- Wall mount enclosure 15 includes internal mounting panel 100 to support all enclosure components.
- Control panel 15 includes main disconnect 101 with external operating handle 102 to interrupt power from the incoming 208 Volt, 3 phase power source.
- Power fuse blocks 105 include fuses in each fuse block to provide a means of individual short circuit protection.
- Contactors 116 , 117 , 118 , 119 are rated to operate 208 Volt, 3 phase 60 Hz for motors 106 , 107 , 108 , and 109 .
- Line terminals 110 are located at the tops of contactors 116 , 117 , 118 , 119 and load terminals 112 at the bottom.
- Shading coil on the magnet insures positive sealing of the armature.
- Arc box is made of a glass filled thermoset material to prevent tracking and prevents flashover.
- Contacts are made of silver cadmium oxide.
- Fixed mount control relay 150 , 151 is supplied to operate the traffic Signal dock lights, suitable for industrial use, with high contact reliability
- the device of the present invention includes a surge suppressor on the control relay coil designed to work in conjunction with devices in this control panel.
- Control panel 15 of this invention includes terminal block 200 to wire external devices, (sensing means 60 , 65 , loading dock spotlight 30 , 31 , traffic signal dock light 20 , 21 , 22 , 23 , and optional truck control devices 90 , 91 ).
- Terminal block 200 is designed to provide ease of wiring of all external devices to the control panel. Molded material prevents tracking across terminals, large surface area permits ease of screwdriver insertion. There is a clear indication where field wires are installed; white marking strip showing a number for each wire. Screw terminals exist for ease of wiring, and there is a dedicated terminal for each external wire.
- FIGS. 2 and 8 through 10 illustrate the 120 Volt, single phase, 60 Hz embodiment of the device of the present invention.
- This embodiment concerns a situation when only one electric dock leveler is present.
- the standard loading dock control panel for electrical dock levelers are usually one single control box system supplied with each individual specific piece of dock leveler equipment. Traditionally, control boxes are made to manually operate one specific piece of equipment.
- Loading dock fans and loading dock lights usually are supplied with a cord and plug for an electrical outlet.
- An advantage of the present invention is to operate loading dock equipment, track shipments and track inventory simultaneously through an automation state with or without a manual process.
- the manual process must be energized to function by way of the automation process.
- the automation dock door equipment process is controlled by a sensing means such as a limit switch, photo eye, motion detector, magnetic switch, or laser. These devices are commercially available and well known in the art.
- a sensing means such as a limit switch, photo eye, motion detector, magnetic switch, or laser.
- the device of the present invention automates the loading dock area with a traffic and inventory control panel system 10 .
- the automation process includes an optional truck control notification automation system 90 , 91 , inside traffic signal dock lights 20 , 21 , outside traffic signal dock lights 22 , 23 , loading dock spot lights 30 , 31 , loading dock fans 40 , 41 and electric dock leveler 50 , 51 .
- Supply voltage 80 is applied to loading dock traffic automation and inventory control system 10 by means of common wiring. Said voltage is applied to the open contacts 116 , 117 , 118 of contactors 112 , 113 , and 114 , respectively.
- switches 12 / 13 , 14 , 16 / 17 , and 18 mounted to control panel face 11 Prior to opening overhead dock door 60 , 61 , switches 12 / 13 , 14 , 16 / 17 , and 18 mounted to control panel face 11 are de-energized.
- sensing means 65 , 66 sends a signal to control relay 150 , 151 .
- Sensing means 65 , 66 are commercially available devices which signal motion. Examples are an electric eye, motion detector, limit switch, or any common device.
- Control relay 150 , 151 is energized, closing contacts 152 , 153 , 154 , 155 , 158 , and 159 , and opening contacts 156 and 157 .
- the closure of contacts 152 , 153 provides electrical power to switches 12 / 13 , 14 , and 16 / 17 , 18 , respectively. An operator may now manually actuate any or all of the switches.
- Closing contacts 154 , 155 and opening contacts 156 , 157 causes inside traffic signal dock lights 20 , 21 to change color from red to green and outside traffic signal dock lights 22 , 23 to change color from green to red.
- an internal transformer and flasher 210 , 212 may be provided, which reduces the supply voltage to the inside traffic signal dock lights 20 , 21 and outside traffic signal dock lights 22 , 23 , eliminating the need for a transformer and flasher inside those devices.
- Closing contacts 158 , 159 provides a power signal to optional external devices 90 , 91 .
- these devices could be a truck bar code scanner system or a truck control device such as means to override the truck's transmission, preventing it from being moved while the loading dock door is still open.
- any combination of electric or manual dock levelers may be present.
- only one door is equipped with an electric dock leveler 50 .
- the second door 61 is equipped with manual dock leveler 55 .
- Selector switch 12 is specified as ‘Dock leveler/Of/Fan’.
- Selector switch 12 is a three-position spring return left center momentary contact switch. To operate, turn selector switch 12 to the left for a moment. This energizes dock leveler contactor 113 . Contacts 117 of dock leveler contactor 113 close, applying power to dock leveler motor 107 , turning it on. When released, the switch springs to center while the dock leveler motor complete its operating duty cycle.
- the associated selector switch 12 , 16 would not have a dock leveler energize position. Instead, the associated selector switch 13 , 17 is a two-position switch with an off position and a fan on position only.
- Selector switches 14 , 18 are the loading dock spot light selector switches, which are turned to the right to energize loading dock spot lights 30 , 31 , respectively, and turned to the left do de-energize loading dock spot lights 30 , 31 .
- the selector switches are classified as pilot devices, 30 mm oil tight type, rugged industrial operator that are of a durable one piece casting, silver contacts carry heavy duty ratings.
- Selector switch has positive action indexing, attractive chrome plating on the locknut and designed to provide long, trouble free service in the most demanding industrial applications.
- Control relays 150 , 151 de-energize, opening contacts 152 , 153 , 154 , 155 , 158 , and 159 , and closing contacts 156 and 157 .
- the opening of contacts 152 , 153 removes electrical power from switches 12 / 13 , 14 , and 16 / 17 , 18 , respectively. This removes power from all devices associated with these switches, and also prevents them from being inadvertently activated, adding to safety and saving energy.
- Opening contacts 154 , 155 and closing contacts 156 , 157 causes inside traffic signal dock lights 20 , 21 to change color from green to red and outside traffic signal dock lights 22 , 23 to change color from red to green. If an optional inventory control and/or truck control device 90 , 91 is installed, opening contacts 158 , 159 sends a signal to the optional inventory control and/or truck control device 90 , 91 .
- Control panel enclosure 15 is mounted on the interior wall of the building next to loading dock door 60 .
- One control panel enclosure 15 can service one or two loading dock door areas 70 , 75 .
- the left two selector switches 12 / 13 , 14 on control panel face 11 control the left dock door area equipment and the right two selector switches 16 / 17 , 18 on control panel face 11 control the right dock door area equipment.
- Wall mount enclosure 15 includes internal mounting panel 100 to support all enclosure components.
- Contactors 116 , 117 , 118 are rated to operate 120 Volt, single phase 60 Hz for motors 107 , 108 , and 109 .
- Line terminals 110 are located at the tops of contactors 116 , 117 , 118 and load terminals 112 at the bottom.
- Shading coil on the magnet insures positive sealing of the armature.
- Arc box is made of a glass filled thermoset material to prevent tracking and prevents flashover.
- Contacts are made of silver cadmium oxide.
- Fixed mount control relay 150 , 151 is supplied to operate the traffic signal dock lights, suitable for industrial use, with high contact reliability.
- the device of the present invention includes a surge suppressor on the control relay coil designed to work in conjunction with devices in this control panel.
- Control panel 15 of this invention includes terminal block 200 to wire external devices, (sensing means 60 , 65 , loading dock spotlight 30 , 31 , traffic signal dock light 20 , 21 , 22 , 23 , and optional truck control devices 90 , 91 ).
- Terminal block 200 is designed to provide ease of wiring of all external devices to the control panel. Molded material prevents tracking across terminals, large surface area permits ease of screwdriver insertion. There is a clear indication where field wires are installed; white marking strip showing a number for each wire. Screw terminals exist for ease of wiring, and there is a dedicated terminal for each external wire.
Abstract
The loading dock traffic automation and inventory control system of the present invention automates the loading dock area by controlling a truck control notification automation system, traffic signal dock lights, loading dock spot light, loading dock fan and dock leveler. The manually operated control panel is energized or de-energized with full automation by the movement of the overhead dock door. The device includes a control panel enclosure mounted on the interior wall of the building next to the loading dock door. One control panel enclosure can service one or two loading dock doors.
Description
- This invention relates to apparatus for automating loading and dock traffic control.
- Truck restraints are expensive capital equipment. They are expensive to install and maintain (with parts and labor). Traffic signal dock lights have been an economical alternative.
- U.S. Pat. No. 4,010,571 discloses an automatic loading dock. This concept comprises an automatic dock leveler and dock light, but has no provisions for a ventilation fan, traffic control lights, or an inventory control system. It relies on a plurality of electro-mechanical relays and limit switches which may be prone to failure.
- U.S. Pat. No. 4,692,755 discloses a loading dock signal and control system. This concept includes traffic control lights as the sole means of communicating to personnel the status of a truck being loaded or unloaded. In addition, this concept comprises a releaseable locking device for preventing a truck from leaving the dock prior to the completion of the loading or unloading activity. Such a device is expensive to install and maintain. This invention has no provisions for a ventilation fan or an inventory control system.
- U.S. Pat. No. 4,843,373 discloses a loading dock signal and control system. This concept comprises traffic control lights, sensing devices, and a releaseable locking device for preventing a truck from leaving the dock prior to the completion of the loading or unloading activity. Such a device is expensive to install and maintain.
- This invention concept also includes sophisticated electronic means for programming the system for various modes of operation.
- U.S. Pat. No. 5,453,735 discloses a loading dock signal and control system. This concept comprises traffic control lights, sensing devices, and a releaseable locking device for preventing a truck from leaving the dock prior to the completion of the loading or unloading activity. Such a device is expensive to install and maintain.
- One object of the present invention is to provide a means to automate loading dock activities including spot lights, ventilation fans, truck traffic control lights, and dock levelers.
- Another object of the present invention is to provide means to automate inventory control systems.
- Other objects of the present invention will become apparent from the following description and drawings.
- The present invention comprises a loading dock traffic and inventory control system which includes a truck control notification automation system. The truck control notification automation system reads a sensor electrically in the terminal strip located in the loading dock traffic and inventory control system panel. This tracking and additional safety device accompanies the traffic signal dock lights without the expense of a truck restraint. The truck control notification automation system is integrated and designed in the loading dock automatic and manual control system circuitry. The device design allows for an automatic signal to be read from the sensor as soon as the dock door is opened. The device design also allows for the automatic signal to be read from the sensor as soon as the dock door is closed. The sensor located on the building will read when a truck has backed up to the dock door and therefore signals to the truck control notification automation system when a truck approaches within a specific distance of sensing zone and electrically responds inside and outside the building. Dock employees inside the building are notified when a truck has back up to the dock by warning devices. The truck control notification automation system will immediately respond if the truck pre-maturely pulls away from the dock before loading or unloading is complete and dock door is not closed. The truck control notification automation system signals and alerts the truck driver with a warning beacon strobe located in the cab of the truck, warning beacon strobe located on the truck, the truck horn is activated, the transmission of the truck is locked, the brakes of the truck are locked, an independent signal warning device in front of the truck is activated, the truck driver is notified on his truck radio, the truck driver is notified on his phone, pager, radio or other communication devices, the audio alarm inside the cab of the truck is activated. The dock attendant inside the truck trailer is notified by a safety alarm light inside the truck trailer, audio alarm inside the truck trailer, beacon alarm strobe on the forklift, audio alarm on the forklift, forklift driver is notified on his phone, pager or radio or other communication devices. As the loading dock door is lowered the truck control notification automation system automatically changes to free to depart alert and alarm signal. The computer central station that controls the computer traffic database will notify the truck driver when he or she is free to depart. The departure notification to the truck driver will be received by truck driver on his or her radio, phone, pager, palm pilot, laptop, beacon located in the cab of the truck, signal light in front of the truck.
- The loading dock traffic automation and inventory control system of the present invention automates the loading dock area by controlling a truck control notification automation system, traffic signal dock lights, loading dock spot light, loading dock fan and dock leveler. The manually operated control panel is energized or de-energized with full automation by the movement of the overhead dock door. The device includes a control panel enclosure mounted on the interior wall of the building next to the loading dock door. One control panel enclosure can service one or two loading dock doors. The selector switches for the dock leveler, loading dock fan and loading dock spot light are inoperable when the loading dock door is in the down and closed position. As the loading dock door is raised, a sensing means is triggered and activated, therefore energizing the selector switches located in the control panel enclosure for the dock leveler, loading dock fan and loading dock spot light. As the loading dock door is raised the inside traffic signal dock lights automatically change from red to green and the outside traffic signal dock lights automatically change from green to red. As the loading dock door is raised the truck control notification automation system automatically updates the computer traffic database, bar code scans the truck, activates (RFID) radio frequency identification, activates (SAW) surface acoustic wave technology while changing to alert and alarm not to depart. All selector switches are operable when the loading dock door is raised. If the loading dock door is lowered when the switches are in the on energized position, all selector switches become inoperable again and all components turn off that are associated with each specific selector switch, thus saving energy. As the loading dock door is lowered the inside traffic signal dock lights automatically change from green to red and the outside traffic signal dock lights automatically change from red to green. As the loading dock door is lowered the truck control notification automation system updates the computer traffic database, bar code scans the truck, activates (RFID) radio frequency identification, activates (SAW) surface acoustic wave technology while automatically changing to free to depart alert and alarm signal.
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FIG. 1 is a inside frontal view of the 480 Volt, 3 phase loading dock traffic automation and inventory control panel system, traffic signal dock lights, loading dock spot light, loading dock fans mounting and wiring detail of the present invention. -
FIG. 2 is an outside frontal view of the loading dock traffic signal dock lights and traffic signal dock light bracket mounted to the door jamb of the present invention. This figure is common to all embodiments of the present invention. -
FIG. 3A is a frontal view of the 480 Volt, 3 phase loading dock traffic automation and inventory control panel system of the present invention showing the front door closed. -
FIG. 3B is a frontal view of the 480 Volt, 3 phase loading dock traffic automation and inventory control panel system of the present invention showing the front door open. -
FIG. 3C is an illustration of the terminal strip installed in the 480 Volt, 3 phase embodiment of the present invention. -
FIG. 4 is a wiring schematic of the 480 Volt, 3 phase loading dock traffic automation and inventory control system of the present invention. -
FIG. 5A is a frontal view of the 208 Volt, 3 phase loading dock traffic automation and inventory control panel system of the present invention showing the front door closed. -
FIG. 5B is a frontal view of the 208 Volt, 3 phase loading dock traffic automation and inventory control panel system of the present invention showing the front door open. -
FIG. 5C is a side view of the 208 Volt, 3 phase loading dock traffic automation and inventory control panel system of the present invention. -
FIG. 5D is an illustration of the terminal strip installed in the 208 Volt, 3 phase embodiment of the present invention. -
FIG. 6 is a wiring schematic of the 208 Volt, 3 phase loading dock traffic automation and inventory control system of the present invention. -
FIG. 7 is a inside frontal view of the loading dock 208 Volt, 3 phase traffic automation and inventory control panel system, traffic signal dock lights, loading dock spot light, loading dock fans mounting and wiring detail of the present invention. -
FIG. 8A is a frontal view of the 120 Volt, 1 phase loading dock traffic automation and inventory control panel system of the present invention showing the front door closed. -
FIG. 8B is a side view of the 120 Volt, 1 phase loading dock traffic automation and inventory control panel system of the present invention. -
FIG. 8C is a frontal view of the 120 Volt, 1 phase loading dock traffic automation and inventory control panel system of the present invention showing the front door open. -
FIG. 8D is an illustration of the terminal strip installed in the 120 Volt, 1 phase embodiment of the present invention. -
FIG. 9 is a wiring schematic of the 120 Volt, 1 phase loading dock traffic automation and inventory control system of the present invention. -
FIG. 10 is a inside frontal view of the 120 Volt, 1 phase loading dock traffic automation and inventory control panel system, traffic signal dock lights, loading dock spot light, loading dock fans mounting and wiring detail of the present invention. -
FIGS. 1 through 4 illustrate the 480 Volt, 3 Phase, 60 Hz embodiment of the device of the present invention. - The standard loading dock control panel for electrical dock levelers are usually one single control box system supplied with each individual specific piece of dock leveler equipment. Traditionally, control boxes are made to manually operate one specific piece of equipment. Loading dock fans and loading dock lights usually are supplied with a cord and plug for an electrical outlet.
- An advantage of the present invention is to operate loading dock equipment, track shipments and track inventory simultaneously through an automation state with or without a manual process. As a safety feature and energy saver, the manual process must be energized to function by way of the automation process.
- The automation dock door equipment process is controlled by a sensing means such as a limit switch, photo eye, motion detector, magnetic switch, or laser. These devices are commercially available and well known in the art. When the dock door is raised the loading dock traffic automation and inventory control panel system is energized and all selector switches are functional. When the dock door is lowered the loading dock traffic and inventory control panel system is de-energized. The selector switches and all functions associated with the selector switches on the control panel are de-energized. If the selector switches had not been previously turned off, when the dock door is lowered the loading dock spot light and loading dock fan are automatically de-energized, thus saving energy.
- When the dock door is lowered the dock leveler selector switch is de-energized and is inoperable, preventing damage to the dock door with an unexpected dock leveler operation attempt from an dock worker employee. The device of the present invention automates the loading dock area with a traffic and inventory
control panel system 10. The automation process includes an optional truck controlnotification automation system loading dock fans electric dock leveler -
Supply voltage 80 is applied to loading dock traffic automation andinventory control system 10 by means of common wiring. Said voltage is applied to the circuitry inside loading dock traffic automation andinventory control system 10 bymain disconnect switch 101. When the contacts ofmain disconnect switch 101 are closed, power is delivered to theopen contacts contactors transformer 120 viafuses 103.Transformer 120 steps down the voltage to that commonly used by the components served by loading dock traffic automation andinventory control system 10. - Prior to opening
overhead dock door overhead dock door relay -
Control relay contacts contacts contacts - Closing
contacts contacts flasher - Closing
contacts external devices - Depending on how the loading dock area is configured, any combination of electric or manual dock levelers may be present. In this example, both doors are equipped with
electric dock levelers selector switch 12, 16 to the left for a moment. This energizes dock leveler contactors 113, 115.Contacts 117 ofdock leveler contactor 113 close, applying power to dockleveler motor 107, tuning it on. Likewise,contacts 119 ofdock leveler contactor 115 close, applying power to dockleveler motor 106. - When released, the switches spring to center while the dock leveler motors complete their operating duty cycles. In the event a manual loading dock leveler is present at the loading dock, the associated
selector switch 12, 16 would not have a dock leveler energize position. Instead, the associatedselector switch 13, 17 is a two-position switch with an off position and a fan on position only. - When
switch fan motor contactor contacts fan motor overhead dock doors contacts closing contacts contacts Opening contacts closing contacts - If an optional inventory control and/or
truck control device contacts truck control device -
Control panel enclosure 15 is mounted on the interior wall of the building next to loadingdock door 60. Onecontrol panel enclosure 15 can service one or two loadingdock door areas selector switches 12/13, 14 on control panel face 11 control the left dock door area equipment and the right two selector switches 16/17, 18 on control panel face 11 control the right dock door area equipment.Wall mount enclosure 15 includes internal mountingpanel 100 to support all enclosure components. -
Control panel 15 includesmain disconnect 101 with external operating handle 102 to interrupt power from the incoming 480 Volt, 3 phase power source.Transformer 120, for example 480/120V CPT, is provided tolower supply voltage 80 to the operating voltage associated with devices connected to the traffic and inventory control panel system, such as contactors, relays, loading dock spotlight, and traffic signal dock lights. - Power fuse blocks 105 include fuses in each fuse block to provide a means of individual short circuit protection.
-
Contactors phase 60 Hz for {fraction (1/2)}horsepower motors Line terminals 110 are located at the tops ofcontactors load terminals 112 at the bottom. Shading coil on the magnet insures positive sealing of the armature. Arc box is made of a glass filled thermoset material to prevent tracking and prevents flashover. Contacts are made of silver cadmium oxide. Fixedmount control relay - The device of the present invention includes a surge suppressor on the control relay coil designed to work in conjunction with devices in this control panel.
-
Control panel 15 of this invention includesterminal block 200 to wire external devices, (sensing means 60, 65,loading dock spotlight signal dock light truck control devices 90, 91).Terminal block 200 is designed to provide ease of wiring of all external devices to the control panel. Molded material prevents tracking across terminals, large surface area permits ease of screwdriver insertion. There is a clear indication where field wires are installed; white marking strip showing a number for each wire. Screw terminals exist for ease of wiring, and there is a dedicated terminal for each external wire. -
FIGS. 2 and 5 through 7 illustrate the 208 Volt, 3 Phase, 60 Hz embodiment of the device of the present invention. - The standard loading dock control panel for electrical dock levelers are usually one single control box system supplied with each individual specific piece of dock leveler equipment. Traditionally, control boxes are made to manually operate one specific piece of equipment. Loading dock fans and loading dock lights usually are supplied with a cord and plug for an electrical outlet.
- An advantage of the present invention is to operate loading dock equipment, track shipments and track inventory simultaneously through an automation state with or without a manual process. As a safety feature and energy saver, the manual process must be energized to function by way of the automation process.
- The automation dock door equipment process is controlled by a sensing means such as a limit switch, photo eye, motion detector, magnetic switch, or laser. These devices are commercially available and well known in the art. When the dock door is raised the loading dock traffic automation and inventory control panel system is energized and all selector switches are functional When the dock door is lowered the loading dock traffic and inventory control panel system is de-energized. The selector switches and all functions associated with the selector switches on the control panel are de-energized. If the selector switches had not been previously turned off, when the dock door is lowered the loading dock spot light and loading dock fan are automatically de-energized, thus saving energy. When the dock door is lowered the dock leveler selector switch is de-energized and is inoperable, preventing damage to the dock door with an unexpected dock leveler operation attempt from an dock worker employee.
- The device of the present invention automates the loading dock area with a traffic and inventory
control panel system 10. The automation process includes an optional truck controlnotification automation system loading dock fans electric dock leveler -
Supply voltage 80 is applied to loading dock traffic automation andinventory control system 10 by means of common wiring. Said voltage is applied to the circuitry inside loading dock traffic automation andinventory control system 10 bymain disconnect switch 101. When the contacts ofmain disconnect switch 101 are closed, power is delivered to theopen contacts contactors phase supply voltage 80 is applied to the remaining circuitry of the traffic and inventorycontrol panel system 10, viafuses Receptacle 220 is an optional, externally wired device used to provide electrical power for low-current applications such as a radio, bar code scanner, etc. - Prior to opening
overhead dock door overhead dock door relay Control relay contacts contacts contacts - Closing
contacts contacts flasher - Closing
contacts external devices - Depending on how the loading dock area is configured, any combination of electric or manual dock levelers may be present. In this example, both doors are equipped with
electric dock levelers selector switch 12, 16 to the left for a moment. This energizes dock leveler contactors 113, 115.Contacts 117 ofdock leveler contactor 113 close, applying power to dockleveler motor 107, turning it on. Likewise,contacts 119 ofdock leveler contactor 115 close, applying power to dockleveler motor 106. When released, the switches spring to center while the dock leveler motors complete their operating duty cycles. In the event a manual loading dock leveler is present at the loading dock, the associatedselector switch 12, 16 would not have a dock leveler energize position. Instead, the associatedselector switch 13, 17 is a two-position switch with an off position and a fan on position only. - When
switch fan motor contactor contacts fan motor - When
overhead dock doors contacts closing contacts contacts Opening contacts closing contacts truck control device contacts truck control device -
Control panel enclosure 15 is mounted on the interior wall of the building next to loadingdock door 60. Onecontrol panel enclosure 15 can service one or two loadingdock door areas selector switches 12/13, 14 on control panel face 11 control the left dock door area equipment and the right two selector switches 16/17, 18 on control panel face 11 control the right dock door area equipment.Wall mount enclosure 15 includes internal mountingpanel 100 to support all enclosure components. -
Control panel 15 includesmain disconnect 101 with external operating handle 102 to interrupt power from the incoming 208 Volt, 3 phase power source. Power fuse blocks 105 include fuses in each fuse block to provide a means of individual short circuit protection. -
Contactors phase 60 Hz formotors Line terminals 110 are located at the tops ofcontactors load terminals 112 at the bottom. Shading coil on the magnet insures positive sealing of the armature. Arc box is made of a glass filled thermoset material to prevent tracking and prevents flashover. Contacts are made of silver cadmium oxide. Fixedmount control relay -
Control panel 15 of this invention includesterminal block 200 to wire external devices, (sensing means 60, 65,loading dock spotlight signal dock light truck control devices 90, 91).Terminal block 200 is designed to provide ease of wiring of all external devices to the control panel. Molded material prevents tracking across terminals, large surface area permits ease of screwdriver insertion. There is a clear indication where field wires are installed; white marking strip showing a number for each wire. Screw terminals exist for ease of wiring, and there is a dedicated terminal for each external wire. -
FIGS. 2 and 8 through 10 illustrate the 120 Volt, single phase, 60 Hz embodiment of the device of the present invention. This embodiment concerns a situation when only one electric dock leveler is present. The standard loading dock control panel for electrical dock levelers are usually one single control box system supplied with each individual specific piece of dock leveler equipment. Traditionally, control boxes are made to manually operate one specific piece of equipment. - Loading dock fans and loading dock lights usually are supplied with a cord and plug for an electrical outlet.
- An advantage of the present invention is to operate loading dock equipment, track shipments and track inventory simultaneously through an automation state with or without a manual process. As a safety feature and energy saver, the manual process must be energized to function by way of the automation process.
- The automation dock door equipment process is controlled by a sensing means such as a limit switch, photo eye, motion detector, magnetic switch, or laser. These devices are commercially available and well known in the art. When the dock door is raised the loading dock traffic automation and inventory control panel system is energized and all selector switches are functional. When the dock door is lowered the loading dock traffic and inventory control panel system is de-energized. The selector switches and all functions associated with the selector switches on the control panel are de-energized. If the selector switches had not been previously turned off, when the dock door is lowered the loading dock spot light and loading dock fan are automatically de-energized, thus saving energy. When the dock door is lowered the dock leveler selector switch is de-energized and is inoperable, preventing damage to the dock door with an unexpected dock leveler operation attempt from an dock worker employee.
- The device of the present invention automates the loading dock area with a traffic and inventory
control panel system 10. The automation process includes an optional truck controlnotification automation system loading dock fans electric dock leveler -
Supply voltage 80 is applied to loading dock traffic automation andinventory control system 10 by means of common wiring. Said voltage is applied to theopen contacts contactors overhead dock door overhead dock door relay Control relay contacts contacts contacts - Closing
contacts contacts flasher - Closing
contacts external devices - Depending on how the loading dock area is configured, any combination of electric or manual dock levelers may be present. In this example, only one door is equipped with an
electric dock leveler 50. - The
second door 61 is equipped withmanual dock leveler 55.Selector switch 12 is specified as ‘Dock leveler/Of/Fan’.Selector switch 12 is a three-position spring return left center momentary contact switch. To operate, turnselector switch 12 to the left for a moment. This energizesdock leveler contactor 113.Contacts 117 ofdock leveler contactor 113 close, applying power to dockleveler motor 107, turning it on. When released, the switch springs to center while the dock leveler motor complete its operating duty cycle. In the event a manual loading dock leveler is present at the loading dock, the associatedselector switch 12, 16 would not have a dock leveler energize position. Instead, the associatedselector switch 13, 17 is a two-position switch with an off position and a fan on position only. - When
switch fan motor contactor contacts fan motor overhead dock doors - Control relays 150, 151 de-energize, opening
contacts closing contacts contacts Opening contacts closing contacts truck control device contacts truck control device -
Control panel enclosure 15 is mounted on the interior wall of the building next to loadingdock door 60. Onecontrol panel enclosure 15 can service one or two loadingdock door areas selector switches 12/13, 14 on control panel face 11 control the left dock door area equipment and the right two selector switches 16/17, 18 on control panel face 11 control the right dock door area equipment.Wall mount enclosure 15 includes internal mountingpanel 100 to support all enclosure components. -
Contactors single phase 60 Hz formotors Line terminals 110 are located at the tops ofcontactors load terminals 112 at the bottom. Shading coil on the magnet insures positive sealing of the armature. Arc box is made of a glass filled thermoset material to prevent tracking and prevents flashover. - Contacts are made of silver cadmium oxide. Fixed
mount control relay - The device of the present invention includes a surge suppressor on the control relay coil designed to work in conjunction with devices in this control panel.
-
Control panel 15 of this invention includesterminal block 200 to wire external devices, (sensing means 60, 65,loading dock spotlight signal dock light truck control devices 90, 91).Terminal block 200 is designed to provide ease of wiring of all external devices to the control panel. Molded material prevents tracking across terminals, large surface area permits ease of screwdriver insertion. There is a clear indication where field wires are installed; white marking strip showing a number for each wire. Screw terminals exist for ease of wiring, and there is a dedicated terminal for each external wire.
Claims (33)
1. A loading dock traffic automation and inventory control panel system comprising:
a truck control notification automation system;
sensing means;
at least one traffic signal dock light;
at least one loading dock spot light;
at least one loading dock fan;
at least one dock leveler; and
an electrical control panel to be electrically fed by at least one power source.
2. A loading dock traffic automation and inventory control panel system according to claim 1 wherein the power source is selected from 480 Volt, 3 phase; 208 Volt, 3 Phase; and 120 V, 1 phase electricity.
3. A loading dock traffic automation and inventory control panel system according to claim 1 wherein said sensing means comprises sensing means selected from a limit switch, photo eye, magnetic switch, and a laser.
4. A loading dock traffic automation and inventory control panel system according to claim 3 including selector switches which are energized or de-energized with full automation by the movement of said overhead door.
5. A loading dock traffic automation and inventory control panel system according to claim 1 wherein said electrical control panel enclosure is mounted on the interior wall of the building next to the loading dock door.
6. A loading dock traffic automation and inventory control panel system according to claim 5 wherein said electrical control panel enclosure 5 includes electrical means for servicing one or two loading dock doors.
7. A loading dock traffic automation and inventory control panel system according to claim 6 wherein said electrical control panel enclosure includes nomenclature on a face panel on the outside front for easy operating instructions.
8. A loading dock traffic automation and inventory control panel system according to claim 7 wherein said electrical control panel enclosure includes at least one a terminal strip for easy wire hookup.
9. A loading dock traffic automation and inventory control panel system according to claim 4 wherein said selector for the dock leveler, loading dock fan and loading dock spot light are inoperable when the loading dock door is in the down and closed position.
10. A loading dock traffic automation and inventory control panel system according to claim 3 wherein said sensing means are triggered and activated by loading dock door motion and energizing the selector switches located in said loading dock traffic automation and inventory control panel system enclosure for the dock leveler, loading dock fan and loading dock spot light.
11. A loading dock traffic automation and inventory control panel system according to claim 1 which includes traffic signal dock lights mounted inside and outside the loading dock doors.
12. A loading dock traffic automation and inventory control panel system according to claim 11 wherein said inside traffic signal dock lights automatically change from red to green and said outside traffic signal dock lights automatically change from green to red as the loading door is raised.
13. A loading dock traffic automation and inventory control panel system according to claim 12 wherein inside traffic signal dock lights automatically change from green to red and the outside traffic signal dock lights automatically change from red to green as the loading door is lowered.
14. A loading dock traffic automation and inventory control panel system according to claim 13 wherein said inside traffic signal dock light colors are always opposite from the outside traffic signal dock lights.
15. A loading dock traffic automation and inventory control panel system according to claim 3 wherein all selector switches in the control panel are energized and operable only when the loading dock door is raised.
16. A loading dock traffic automation and inventory control panel system according to claim 10 wherein said dock leveler and loading dock fan selector switch operates with one selector switch.
17. A loading dock traffic automation and inventory control panel system according to claim 16 wherein said dock leveler operates by turning the selector switch as a momentary contact to the left as on and is spring center off, said loading dock fan operates as lock on to the right and center off.
18. A loading dock traffic automation and inventory control panel system according to claim 17 wherein said loading dock spot light selector switch operates lock on to the right and lock off to the left.
19. A loading dock traffic automation and inventory control panel system according to claim 15 wherein as the loading dock door is lowered with said selector switches are selected with the on energized position, the dock leveler and loading dock fan selector switch, the loading dock spot light selector switch all become de-energized and inoperable.
20. A loading dock traffic automation and inventory control panel system according to claim 19 wherein the dock leveler, loading dock fan and loading dock spot light all turn off.
21. A loading dock traffic automation and inventory control panel system according to claim 1 wherein said sensing means senses a truck has entered a sensing zone in front of the loading dock and electrically responds inside and outside the building.
22. A loading dock traffic automation and inventory control panel system according to claim 1 wherein a computer database network and dock attendants inside the building are notified when a truck has backed up to the dock.
23. A loading dock traffic automation and inventory control panel system according to claim 1 wherein said computer database network includes movement of any truck in front of a specific dock.
24. A loading dock traffic automation and inventory control panel system according to claim 1 including means for barcode reading the truck for traffic control management, delivery time management, inventory control and loss prevention.
25. A loading dock traffic automation and inventory control panel system according to claim 1 wherein said sensing means activates (RFID) radio frequency identification.
26. A loading dock traffic automation and inventory control panel system according to claim 1 wherein said sensing means activates (SAW) surface acoustic wave technology.
27. A loading dock traffic automation and inventory control panel system according to claim 1 wherein said sensing means activates an alarm if a truck prematurely pulls away from the dock before loading or unloading is complete and dock door is not closed.
28. A loading dock traffic automation and inventory control panel system according to claim 1 wherein said sensing means will signal and alert the truck driver with one or more of the following devices: a warning beacon strobe located in the cab of the truck; a warning beacon strobe located on the truck; the truck horn is activated; the transmission of the truck is locked; the brakes of the truck are locked; an independent signal warning device in front of the truck is activated; the truck driver is notified on his truck radio, the truck driver is notified on his phone, pager, radio or other communication devices; and/or an audio alarm inside the cab of the truck is activated.
29. A loading dock traffic automation and inventory control panel system according to claim 1 including sensing means which notifies a dock attendant inside the truck trailer of unauthorized truck movement by means of a safety alarm light inside the truck trailer, and/or an audio alarm inside the truck trailer.
30. A loading dock traffic automation and inventory control panel system according to claim 1 wherein said sensing means notifies a forklift driver of unauthorized truck movement by means of a beacon alarm; a strobe on a forklift; an audio alarm on the forklift; and/or the phone, pager, radio or other communication devices.
31. A loading dock traffic automation and inventory control panel system according to claim 1 wherein as the loading dock door is lowered, the truck control notification automation system automates a reverse signal and all alarm warning notices to the truck, truck driver, loading dock worker and forklift driver are reversed.
32. A loading dock traffic automation and inventory control panel system according to claim 1 wherein a traffic signal dock light step down transformer is installed inside the loading dock traffic automation and inventory control panel.
33. A loading dock traffic automation and inventory control panel system according to claim 1 wherein the traffic signal dock light flasher is installed inside the loading dock traffic automation and inventory control panel, thus eliminating the inside traffic signal dock light.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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US10/918,799 US20050028723A1 (en) | 2002-02-19 | 2004-08-16 | Loading dock traffic automation and inventory control system |
US11/211,878 US7333016B2 (en) | 2000-12-12 | 2005-08-26 | Property entrance and exit notification, inventory control system |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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US10/023,030 US6812849B1 (en) | 2000-12-12 | 2002-02-19 | Loading dock traffic automation |
US10/918,799 US20050028723A1 (en) | 2002-02-19 | 2004-08-16 | Loading dock traffic automation and inventory control system |
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Application Number | Title | Priority Date | Filing Date |
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US10/023,030 Continuation-In-Part US6812849B1 (en) | 2000-12-12 | 2002-02-19 | Loading dock traffic automation |
US10/023,030 Continuation US6812849B1 (en) | 2000-12-12 | 2002-02-19 | Loading dock traffic automation |
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US11/211,878 Continuation US7333016B2 (en) | 2000-12-12 | 2005-08-26 | Property entrance and exit notification, inventory control system |
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US11/211,878 Expired - Lifetime US7333016B2 (en) | 2000-12-12 | 2005-08-26 | Property entrance and exit notification, inventory control system |
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US11/211,878 Expired - Lifetime US7333016B2 (en) | 2000-12-12 | 2005-08-26 | Property entrance and exit notification, inventory control system |
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US10555804B2 (en) | 2008-04-04 | 2020-02-11 | Journey1, Inc. | Therapeutic device for pain management and vision |
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US10663761B2 (en) | 2009-10-23 | 2020-05-26 | Journey1, Inc. | Conformable therapeutic shield for vision and pain |
US10627649B2 (en) | 2009-10-23 | 2020-04-21 | Journey1, Inc. | Conformable therapeutic shield for vision and pain |
US10596038B2 (en) | 2009-10-23 | 2020-03-24 | Journey1, Inc. | Corneal denervation for treatment of ocular pain |
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DE102012110292A1 (en) | 2012-10-01 | 2014-04-03 | Hörmann KG Antriebstechnik | Method for setting up and operating a loading bridge arrangement and devices for carrying out the same |
DE102012110292B4 (en) | 2012-10-01 | 2020-07-02 | Hörmann KG Antriebstechnik | Method for setting up and operating a loading bridge arrangement and devices for carrying it out |
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US20190031455A1 (en) * | 2014-09-17 | 2019-01-31 | Niagara Bottling, Llc | Dock Door Automation System and Method |
US11511952B2 (en) | 2014-09-17 | 2022-11-29 | Niagara Bottling, Llc | Dock door automation system and method |
US10696499B2 (en) * | 2014-09-17 | 2020-06-30 | Niagara Bottling, Llc | Dock door automation system and method |
EP3061713A1 (en) * | 2015-02-25 | 2016-08-31 | BEUMER GmbH & Co. KG | Load station with loading gate and loading ramp |
US11040841B2 (en) * | 2017-06-06 | 2021-06-22 | The Chamberlain Group, Inc. | Bollard with integrated control system |
US20200102165A1 (en) * | 2017-06-06 | 2020-04-02 | The Chamberlain Group, Inc. | Bollard With Integrated Control System |
US11892818B2 (en) | 2018-10-17 | 2024-02-06 | Niagara Bottling, Llc | Dock door automation systems and methods |
USD907842S1 (en) | 2019-06-04 | 2021-01-12 | Tri Lite, Inc. | Dock light arm |
US11236873B2 (en) | 2019-06-04 | 2022-02-01 | Tri Lite, Inc. | Dock light apparatus |
US11820290B2 (en) | 2021-04-14 | 2023-11-21 | Niagara Bottling, Llc | Trailer alignment detection for dock automation using vision system and dynamic depth filtering |
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US20060044132A1 (en) | 2006-03-02 |
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