CA1129897A - Hold-open device for use with conventional door closer - Google Patents
Hold-open device for use with conventional door closerInfo
- Publication number
- CA1129897A CA1129897A CA356,997A CA356997A CA1129897A CA 1129897 A CA1129897 A CA 1129897A CA 356997 A CA356997 A CA 356997A CA 1129897 A CA1129897 A CA 1129897A
- Authority
- CA
- Canada
- Prior art keywords
- latch
- door
- frame
- shoe
- track
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F3/00—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices
- E05F3/22—Additional arrangements for closers, e.g. for holding the wing in opened or other position
- E05F3/221—Mechanical power-locks, e.g. for holding the wing open or for free-moving zones
- E05F3/222—Mechanical power-locks, e.g. for holding the wing open or for free-moving zones electrically operated
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
- E05C17/00—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith
- E05C17/02—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means
- E05C17/04—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means with a movable bar or equivalent member extending between frame and wing
- E05C17/12—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means with a movable bar or equivalent member extending between frame and wing consisting of a single rod
- E05C17/24—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means with a movable bar or equivalent member extending between frame and wing consisting of a single rod pivoted at one end, and with the other end running along a guide member
- E05C17/28—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means with a movable bar or equivalent member extending between frame and wing consisting of a single rod pivoted at one end, and with the other end running along a guide member with braking, clamping or securing means at the connection to the guide member
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F3/00—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices
- E05F3/22—Additional arrangements for closers, e.g. for holding the wing in opened or other position
- E05F2003/228—Arrangements where the end of the closer arm is sliding in a track
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05Y2900/00—Application of doors, windows, wings or fittings thereof
- E05Y2900/10—Application of doors, windows, wings or fittings thereof for buildings or parts thereof
- E05Y2900/13—Application of doors, windows, wings or fittings thereof for buildings or parts thereof characterised by the type of wing
- E05Y2900/132—Doors
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T292/00—Closure fasteners
- Y10T292/28—Extension link
- Y10T292/289—Slotted bar
- Y10T292/293—Swinging catch
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T292/00—Closure fasteners
- Y10T292/28—Extension link
- Y10T292/2935—Slotted or notched keeper
- Y10T292/296—Swinging catch
Abstract
HOLD-OPEN DEVICE FOR USE WITH
CONVENTIONAL DOOR CLOSER
ABSTRACT OF THE DISCLOSURE
Door holder is adapted to work with conventional door closer. Holder comprises a shoe moving along a track and con-nected to the closer operating arm. A latch, when device is activated, holds shoe with door in open condition. Latch is attached to a frame near the track and which may be moved away from latching engagement with shoe either by forceable closing of the door manually or by de-activating closer.
CONVENTIONAL DOOR CLOSER
ABSTRACT OF THE DISCLOSURE
Door holder is adapted to work with conventional door closer. Holder comprises a shoe moving along a track and con-nected to the closer operating arm. A latch, when device is activated, holds shoe with door in open condition. Latch is attached to a frame near the track and which may be moved away from latching engagement with shoe either by forceable closing of the door manually or by de-activating closer.
Description
~29~7 BACKGROUND OF THE INVENTION
1. Field of the Invention:
This invention relates to a selec-tively operable hold-open device for use with a conven-tional door close~. More specifically, the invention relates to a hold-open device for a swinging door, the device adapted to be made effective by power means such as a solenoid and rendered ineffective permitting the door to close either by de-activation of the same power means or by being overcome by forceable manual closing of the door.
1. Field of the Invention:
This invention relates to a selec-tively operable hold-open device for use with a conven-tional door close~. More specifically, the invention relates to a hold-open device for a swinging door, the device adapted to be made effective by power means such as a solenoid and rendered ineffective permitting the door to close either by de-activation of the same power means or by being overcome by forceable manual closing of the door.
2. Description of the Prior Art:
~ In the prior art there are a number of devices adapted to be used with the single operating arm of a conventional door closer mounted on a swinging door for the purpose of holding the door open. Typically, such devices are used in hospitals, for instance, whereby the door may be manually held open by the device until its power means are actuated to release the door to permit it to close. Such an arrangement has been used in situations wherein in the event of fire~ for instance, the door to a patient's room is automatically closed. Examples of the prior art include the U.S. patent 3,771,823, issued to Schnarr, wherein a hooked shoe rides in a track on the door frame and is connected to a door closer mounted on a door. The hooked shoe in the hold-open position is engaged by a pai~ of mating hooks which are sol~noid-actuated and releasea~ly hold the shoe with the door in the hold-open position. Other examples of such hold-open devices are found in U.S. patent 3,164,404, issued January 5, 1965 to Arnold, U.S. patent 3,926,461, issued December 16, 1975 to D'Hoo~e.
85~7 SUMMARY OF THE INVENTION
Under the present invention, as in some past units, a shoe attached to the operating arm of -the door closer travels along a track mounted on a door frame. The shoe, in its travel adjacent the open positon, passes a latch mounted on a movable frame adjacent the track and, with the frame beariny the la~ch in operable position, it automatically catches the shoe and does not release it. This holds the door open. A release can be accomplished by moving the frame so that the latch assumes a second position permitting passage of the shoe. The movement of the frame is either accomplished by a rPversal of the same power means or by a forceable closing pressure on the door to result in a forced retraction of the movable frame.
BRIEF DESCRIPTION OF THE DRAWINGS
Further objects and features of the invention will be apparent from a reading of the attached specification and draw-ings, all of which disclose a non-limiting form of the invention.
In the drawings:
Fig. 1 is a fragmentary perspective view showing a 2a door associated with a holder of the invention being opened;
Fig. 2 is a fragmentary perspective view showing the door held in the open position;
Fig. 3 is a sectional view taken on the line 3-3 of Fig. 2;
Fig. 4 is a sectional view taken on the line 4-4 of Fig. 3;
Fig. 5 is a sectional view like Fig. 3~ but showing :~Z989~
the latch and shoe in hold-open condition;
Fig. 6 is a sectional view taken on the line 6-6 of Fig. 5;
Fig. 7 is a section~1 view similar to Fig. 5, but showing the release of the door holder and the movement o~ the sho~ from the open position toward the closed position; and Fig. 8 is a sectional view taken on the llne ~-8 of Fig. 7.
DESCRIPTION OF THE PREFERRED EMBODIMENT
A door hold-open device embodying the invention is generally designated 10 in Fig. 1. It is mounted on the 'frame F of a door D and is attached to the arm A of a conventional closer C.
While the arrangement can be otherwise, that is, with the closer mounted on the frame and the track mounted on the door, the invention is well disclosed in the shown drawings wherein the hold-open device is frame-mounted.
The hold-open device comprises a combined track and housing 12. Preferably, this is in the form of a channel-shaped extrusion tFig. 4) having a top wall 14, depending sidewalls 16, and intermediate rein~orcing web 17, and inward track flanges 18.
SlideabIy mounted along the track flanges 18 is a shoe 20 (Figs. 3, 8) which is a generally rectangular solid having slots 22 along the opposite sides thereof adapted to receive the track flanges 18 (Fig. 8). The shoe is formed with a vertic-al bore 24 (Fig. 3) which is countersunk at its upper end and receives a cylindrical rivet, 26 having an enlarged head at its upper end received into the counterbore. At the lower end, the 8~7 rivet 26 is formed with a reduced neck adapted to receive the opening at the end of the door closer arm A and to be headed as at 28 to pivotally connect the rivet and the arm. ~djacent the opposite end oE the shoe a recess 30 is formed and a pro-nounced rib 32 extends upward -thereadjacent, the recess and the rib :Eorming between them a latch-receiving corner or recess 34.
Secured to the combined housing and tack and adapted to serve as a stop for the travel of the shoe is the stop block 36.
Within the housing/track assembly is disposed a channel-shaped sub-housing 38 with a downwardly-facing opening 40 and which is preferably secured to the upper wall 14 of the outer housing-track unit. The sub-housing is formed with a transverse pin 42. A frame 44, with a pair of parallel sidewalls, is formed with apertures in alignment to pivotally receive the pin 42 to attach the frame inside the sub-housing. The end of the frame carries a journal pin 46 which journals a roller 48.
Latch pin 50 also is mcunted between the two side plates of the frame 44. Pivotall~ mounted on the pin 50 is an upside down teardrop-shaped latch 52. In the area of the latch, the weh 17 is apertured as at 52 to permit clearance of the latch as it pivots. As best shown.in Fig. 4, spiral springs 54 surround the pin 50 on opposite sides of the latch~. the ends of the springs being disposed respectively in small oyenings 56 and 58 in the adjacent sidewall of the frame 44 and the latch.52 respectively to bias the latch in a position generally perpendicular to the frame 44 but yielding to permit pivotlng ln either direction.
The sub-housing 38 is slotted in alignment on both side-- 4 - , ~Li2~
walls as at 60 (Figs. 5 and 6) to journal the pin-tles or stub shafts of a small roller 62. The slots 60 permit a change in position of the roller 62 frorn a first position as shown in Fig. 5 where it is slightly offset to the right from -the vertical of the axis of roller 48 to a second position alon~side the roller 48. The roller 62 is engaged by the leading narrow end of an L-shaped drive head 64 mounted on the armature rod 66 of an electric solenoid 68. In practice, the solenoid may be alternatively an air barrel-and-piston assembly with the piston rod taking the place of the armature rod 66. The air barrel or solenoid body, or other power means, is rigidly mounted in the housing/track means.
OPERATION
In operation, with the arm A connected to the rivet 26 in turn rotatably mounted in the shoe 20, the manual openings and closings of the door cause the shoe 20 to move along the track flanges 18. As shown in Figs. l and 3, with .the door approaching the full open pOsitiQn~ the shoe 20 approaches the latch 52 and the stop 36.
Assuming the armature rod 66 is extended as by the actuation of the so].enoid 68 or other power means, the roller 62 is in its first position.shown in Fig. 3. Because this necessar-ily involves the extension of the armature rod 66 and the head 64 and because the roller 62 comprises part of the power means,.
the power means in the situation shown in Fi~. 3 is said to be in the first position. In the first position, the roller 62 wedges between the top wall of the sub-housing 38 and the roller 48 with. the consequence that the frame 44 and the latch 52 are 298~7 held in the closest position to the path of the shoe 20, or the latch position.
When the shoe moves as the door is opened further to a position adjacent the s-top 36, it will be seen that the pro-jection has brushed by the spring-biased latch 52 so that the nose of the latch 52 is now trapped in the latch-receiving corn~r recess 34 of the shoe. From this position, as shown in Fig. 5, it is not possible for the shoe 20 to move rightwardly as i5 required for the door to close. Thus, as long as the parts are in the position shown in Fig. 5, the door is held open against the closing bias of the operator C.
The unlatching of the hold-open device may be accomplish-ed in either of two ways. First, by the movement of the frame 44 away from the shoe 20 upon the removal of the power means from the first position to the second position as by deactivation of solenoid 68, or, second, by the forced removal of the power means as by the forceable closing pressure on the door.
More specifically, if, as in the event o~ fire or smoke or other reason, the electric power to the solenoid 68 is 2n cut, spring means in the solenoid or rightward pressure by the roller 48 on the roller 62 moves the roller 62 to its second position (Fig. 7) to permit the roller 48 to raise as the frame 44 pivots upwardly as shown. It should be understood that the rightward pressure on the roller 62 (Fig. 5) is the result of the geometry inherent in the position of pin ~2 and the arcuate path o$ the roller 48 as the frame 44 swings about pin 42. The arcuate swing results in a rightward component on roller 62.
Because of this component of force, it is not necessary to have ~29~3~7 the arrnature rod 66 spring-biased rightwardly. It is clear that the upward pivoting movement oE the frame 44 about the pin 42 is effected by the upward component of the latch 52 due to the righ\twardlpressureof the closer arm A on the shoe 20~
The power means can also be moved ~rom ~irst position to second position by a substantial increase in the riyhtward pressure on the shoe 20 (Fig. 5) brought about b~ the forceable manual pressure on the door in th~closing direction. This increases the upward force on the latch 52 to result in increased upward force on roller 48 and increased rightward force on roller 62 to overcome the power of the solenoid 68 even though the solenoid may be on at the time.
It will be clear from the foregoing description that the arrangement disclosed is effective and durable and not susceptible to wear or breakage through misuse. It should be clear that variations are possible and that, for instance, the track unit and the closer can be interchanged to leave the track unit on the door and the closer mounted on the door frame.
Thus, the invention is susceptible of variations from the embodiment shown. The invention i5 therefore definable by the following claim language including equivalents thereof.
~ In the prior art there are a number of devices adapted to be used with the single operating arm of a conventional door closer mounted on a swinging door for the purpose of holding the door open. Typically, such devices are used in hospitals, for instance, whereby the door may be manually held open by the device until its power means are actuated to release the door to permit it to close. Such an arrangement has been used in situations wherein in the event of fire~ for instance, the door to a patient's room is automatically closed. Examples of the prior art include the U.S. patent 3,771,823, issued to Schnarr, wherein a hooked shoe rides in a track on the door frame and is connected to a door closer mounted on a door. The hooked shoe in the hold-open position is engaged by a pai~ of mating hooks which are sol~noid-actuated and releasea~ly hold the shoe with the door in the hold-open position. Other examples of such hold-open devices are found in U.S. patent 3,164,404, issued January 5, 1965 to Arnold, U.S. patent 3,926,461, issued December 16, 1975 to D'Hoo~e.
85~7 SUMMARY OF THE INVENTION
Under the present invention, as in some past units, a shoe attached to the operating arm of -the door closer travels along a track mounted on a door frame. The shoe, in its travel adjacent the open positon, passes a latch mounted on a movable frame adjacent the track and, with the frame beariny the la~ch in operable position, it automatically catches the shoe and does not release it. This holds the door open. A release can be accomplished by moving the frame so that the latch assumes a second position permitting passage of the shoe. The movement of the frame is either accomplished by a rPversal of the same power means or by a forceable closing pressure on the door to result in a forced retraction of the movable frame.
BRIEF DESCRIPTION OF THE DRAWINGS
Further objects and features of the invention will be apparent from a reading of the attached specification and draw-ings, all of which disclose a non-limiting form of the invention.
In the drawings:
Fig. 1 is a fragmentary perspective view showing a 2a door associated with a holder of the invention being opened;
Fig. 2 is a fragmentary perspective view showing the door held in the open position;
Fig. 3 is a sectional view taken on the line 3-3 of Fig. 2;
Fig. 4 is a sectional view taken on the line 4-4 of Fig. 3;
Fig. 5 is a sectional view like Fig. 3~ but showing :~Z989~
the latch and shoe in hold-open condition;
Fig. 6 is a sectional view taken on the line 6-6 of Fig. 5;
Fig. 7 is a section~1 view similar to Fig. 5, but showing the release of the door holder and the movement o~ the sho~ from the open position toward the closed position; and Fig. 8 is a sectional view taken on the llne ~-8 of Fig. 7.
DESCRIPTION OF THE PREFERRED EMBODIMENT
A door hold-open device embodying the invention is generally designated 10 in Fig. 1. It is mounted on the 'frame F of a door D and is attached to the arm A of a conventional closer C.
While the arrangement can be otherwise, that is, with the closer mounted on the frame and the track mounted on the door, the invention is well disclosed in the shown drawings wherein the hold-open device is frame-mounted.
The hold-open device comprises a combined track and housing 12. Preferably, this is in the form of a channel-shaped extrusion tFig. 4) having a top wall 14, depending sidewalls 16, and intermediate rein~orcing web 17, and inward track flanges 18.
SlideabIy mounted along the track flanges 18 is a shoe 20 (Figs. 3, 8) which is a generally rectangular solid having slots 22 along the opposite sides thereof adapted to receive the track flanges 18 (Fig. 8). The shoe is formed with a vertic-al bore 24 (Fig. 3) which is countersunk at its upper end and receives a cylindrical rivet, 26 having an enlarged head at its upper end received into the counterbore. At the lower end, the 8~7 rivet 26 is formed with a reduced neck adapted to receive the opening at the end of the door closer arm A and to be headed as at 28 to pivotally connect the rivet and the arm. ~djacent the opposite end oE the shoe a recess 30 is formed and a pro-nounced rib 32 extends upward -thereadjacent, the recess and the rib :Eorming between them a latch-receiving corner or recess 34.
Secured to the combined housing and tack and adapted to serve as a stop for the travel of the shoe is the stop block 36.
Within the housing/track assembly is disposed a channel-shaped sub-housing 38 with a downwardly-facing opening 40 and which is preferably secured to the upper wall 14 of the outer housing-track unit. The sub-housing is formed with a transverse pin 42. A frame 44, with a pair of parallel sidewalls, is formed with apertures in alignment to pivotally receive the pin 42 to attach the frame inside the sub-housing. The end of the frame carries a journal pin 46 which journals a roller 48.
Latch pin 50 also is mcunted between the two side plates of the frame 44. Pivotall~ mounted on the pin 50 is an upside down teardrop-shaped latch 52. In the area of the latch, the weh 17 is apertured as at 52 to permit clearance of the latch as it pivots. As best shown.in Fig. 4, spiral springs 54 surround the pin 50 on opposite sides of the latch~. the ends of the springs being disposed respectively in small oyenings 56 and 58 in the adjacent sidewall of the frame 44 and the latch.52 respectively to bias the latch in a position generally perpendicular to the frame 44 but yielding to permit pivotlng ln either direction.
The sub-housing 38 is slotted in alignment on both side-- 4 - , ~Li2~
walls as at 60 (Figs. 5 and 6) to journal the pin-tles or stub shafts of a small roller 62. The slots 60 permit a change in position of the roller 62 frorn a first position as shown in Fig. 5 where it is slightly offset to the right from -the vertical of the axis of roller 48 to a second position alon~side the roller 48. The roller 62 is engaged by the leading narrow end of an L-shaped drive head 64 mounted on the armature rod 66 of an electric solenoid 68. In practice, the solenoid may be alternatively an air barrel-and-piston assembly with the piston rod taking the place of the armature rod 66. The air barrel or solenoid body, or other power means, is rigidly mounted in the housing/track means.
OPERATION
In operation, with the arm A connected to the rivet 26 in turn rotatably mounted in the shoe 20, the manual openings and closings of the door cause the shoe 20 to move along the track flanges 18. As shown in Figs. l and 3, with .the door approaching the full open pOsitiQn~ the shoe 20 approaches the latch 52 and the stop 36.
Assuming the armature rod 66 is extended as by the actuation of the so].enoid 68 or other power means, the roller 62 is in its first position.shown in Fig. 3. Because this necessar-ily involves the extension of the armature rod 66 and the head 64 and because the roller 62 comprises part of the power means,.
the power means in the situation shown in Fi~. 3 is said to be in the first position. In the first position, the roller 62 wedges between the top wall of the sub-housing 38 and the roller 48 with. the consequence that the frame 44 and the latch 52 are 298~7 held in the closest position to the path of the shoe 20, or the latch position.
When the shoe moves as the door is opened further to a position adjacent the s-top 36, it will be seen that the pro-jection has brushed by the spring-biased latch 52 so that the nose of the latch 52 is now trapped in the latch-receiving corn~r recess 34 of the shoe. From this position, as shown in Fig. 5, it is not possible for the shoe 20 to move rightwardly as i5 required for the door to close. Thus, as long as the parts are in the position shown in Fig. 5, the door is held open against the closing bias of the operator C.
The unlatching of the hold-open device may be accomplish-ed in either of two ways. First, by the movement of the frame 44 away from the shoe 20 upon the removal of the power means from the first position to the second position as by deactivation of solenoid 68, or, second, by the forced removal of the power means as by the forceable closing pressure on the door.
More specifically, if, as in the event o~ fire or smoke or other reason, the electric power to the solenoid 68 is 2n cut, spring means in the solenoid or rightward pressure by the roller 48 on the roller 62 moves the roller 62 to its second position (Fig. 7) to permit the roller 48 to raise as the frame 44 pivots upwardly as shown. It should be understood that the rightward pressure on the roller 62 (Fig. 5) is the result of the geometry inherent in the position of pin ~2 and the arcuate path o$ the roller 48 as the frame 44 swings about pin 42. The arcuate swing results in a rightward component on roller 62.
Because of this component of force, it is not necessary to have ~29~3~7 the arrnature rod 66 spring-biased rightwardly. It is clear that the upward pivoting movement oE the frame 44 about the pin 42 is effected by the upward component of the latch 52 due to the righ\twardlpressureof the closer arm A on the shoe 20~
The power means can also be moved ~rom ~irst position to second position by a substantial increase in the riyhtward pressure on the shoe 20 (Fig. 5) brought about b~ the forceable manual pressure on the door in th~closing direction. This increases the upward force on the latch 52 to result in increased upward force on roller 48 and increased rightward force on roller 62 to overcome the power of the solenoid 68 even though the solenoid may be on at the time.
It will be clear from the foregoing description that the arrangement disclosed is effective and durable and not susceptible to wear or breakage through misuse. It should be clear that variations are possible and that, for instance, the track unit and the closer can be interchanged to leave the track unit on the door and the closer mounted on the door frame.
Thus, the invention is susceptible of variations from the embodiment shown. The invention i5 therefore definable by the following claim language including equivalents thereof.
Claims (7)
OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. A selectively operable hold-open device for use with a conventional single-arm door closer, mounted on a swinging door comprising:
(a) track means;
(b) shoe means adapted to be connected to the distal end of the door closer arm and to move along the track means, the shoe means having a latch-receiving recess;
(c) a movable frame pivotally mounted adjacent the track means;
(d) a latch pivotally secured to the frame and pivoting about a fixed pivot point on the frame;
(e) power means disposed adjacent the track and adapted to selectively assume a first position to hold the frame with the latch in the path of the shoe in latch position so that when the recess on the shoe passes the latch as the door approaches open condition, the shoe can not pass back the other way without the latch engaging the recess and holding the shoe unless the power means moves or is moved out of the first position.
(a) track means;
(b) shoe means adapted to be connected to the distal end of the door closer arm and to move along the track means, the shoe means having a latch-receiving recess;
(c) a movable frame pivotally mounted adjacent the track means;
(d) a latch pivotally secured to the frame and pivoting about a fixed pivot point on the frame;
(e) power means disposed adjacent the track and adapted to selectively assume a first position to hold the frame with the latch in the path of the shoe in latch position so that when the recess on the shoe passes the latch as the door approaches open condition, the shoe can not pass back the other way without the latch engaging the recess and holding the shoe unless the power means moves or is moved out of the first position.
2. A hold-open device as claimed in claim 1 wherein the distal end of the frame carries a first roller and the latch means extends toward the track from intermediate the ends of the frame and a second roller comprising part of the power means is adapted to engage the first roller to hold the frame in said latch position.
3. A hold-open device as claimed in claim 2 wherein the latch means is teardrop-shape and is pivoted at its thicker end to the frame, and is spring-biased to a position at which it is disposed perpendicular to the path of the shoe.
4. A hold-open device as claimed in claim 2 wherein the frame is mounted in a U-shaped housing and the second roller is disposed between the intermediate wall of the housing and the first roller.
5. A hold-open device as claimed in claim 4 wherein the second roller is formed with a pair of outward pintles and is supported by its pintles in a pair of aligned slots in the sidewalls of the housing.
6. An assembly incluing a swinging door member mounted in a door-frame member, a conventional door closer having an operator and arm mounted on one of said members, a track mounted on the other of said members, a shoe riding in the track and carried on the distal end of the arm, pivoted latch means on said other member adapted to engage the shoe and hold it with the door in open position, the latch being pivotally mounted on a frame in turn pivotally mounted at one end of the track, and power means adapted to pivot the frame to a latch position adjacent the track, whereby when the frame is in the latch position adjacent the track, the latch catches the shoe and thereby holds the door open and thereafter the door may be closed by either manually forcing the door to overcome the power means or by de-activating the power means.
7. An assembly as claimed in claim 6 wherein the latch means is spring-biased toward a position perpendicular to the track.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US06/060,825 US4286412A (en) | 1979-07-25 | 1979-07-25 | Hold-open device for use with conventional door closer |
| US060,825 | 1979-07-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1129897A true CA1129897A (en) | 1982-08-17 |
Family
ID=22031982
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA356,997A Expired CA1129897A (en) | 1979-07-25 | 1980-07-25 | Hold-open device for use with conventional door closer |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US4286412A (en) |
| CA (1) | CA1129897A (en) |
Families Citing this family (28)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4656690A (en) * | 1984-10-18 | 1987-04-14 | Ryobi Limited | Fireproof door closer and holder having a solenoid and a toggle mechanism |
| DE3604084C2 (en) * | 1986-02-08 | 1996-03-21 | Dorma Gmbh & Co Kg | Locking device for door leaves with a door closer |
| DE3604083C2 (en) * | 1986-02-08 | 1996-04-04 | Dorma Gmbh & Co Kg | Locking device for door leaves with a door closer |
| US4750236A (en) * | 1987-01-02 | 1988-06-14 | Yale Security Inc. | Track-type door hold-open device |
| DE3806662C2 (en) * | 1987-03-05 | 1999-06-10 | Geze Grundstueck Beteiligung | Locking device for a door provided with a door closer |
| DE3844995C2 (en) * | 1987-03-05 | 2003-07-03 | Geze Gmbh | Locating device for door with closer |
| DE8801896U1 (en) * | 1988-02-13 | 1988-03-24 | Gretsch-Unitas Gmbh Baubeschlaege, 7257 Ditzingen, De | |
| US4878265A (en) * | 1988-09-07 | 1989-11-07 | Dorma Door Controls, Inc. | Hold-open mechanism for use with a door closer |
| DE8902002U1 (en) * | 1989-02-21 | 1989-04-27 | Gretsch-Unitas Gmbh Baubeschlaege, 7257 Ditzingen, De | |
| FR2649747B1 (en) * | 1989-07-17 | 1995-08-25 | Lacroix Jean | AUTOMATIC GATE OPERATOR |
| US4958867A (en) * | 1990-01-31 | 1990-09-25 | Champagne Phillip A | Locking device for washers and dryers |
| US5551740A (en) * | 1994-10-04 | 1996-09-03 | Tong-Lung Metal Industry Co., Ltd. | Retaining assembly for retaining releasably a door at a desired open position to a door frame |
| DE19606204C1 (en) * | 1996-02-21 | 1997-05-22 | Dorma Gmbh & Co Kg | Electromechanical restraint for door with automatic door closer |
| US6317922B1 (en) | 1999-08-13 | 2001-11-20 | Truth Hardware Corporation | Door closer |
| DE10008855C2 (en) * | 2000-02-25 | 2002-02-07 | Dorma Gmbh & Co Kg | Device for height adjustment of a slide rail |
| US6499185B1 (en) * | 2000-10-30 | 2002-12-31 | Dorma Door Controls, Inc | Apparatus for holding a door open |
| US6615449B1 (en) | 2002-02-06 | 2003-09-09 | Arthur Alvarez | Releasable locking assembly for a door control cylinder |
| DE10300333B4 (en) * | 2003-01-02 | 2017-07-13 | Eco Schulte Gmbh & Co Kg | Electromagnetic detection |
| DE102005001315B4 (en) * | 2005-01-11 | 2007-05-24 | Dorma Gmbh + Co. Kg | Electromechanical locking device for a door drive |
| DE102008048994B4 (en) * | 2008-09-25 | 2010-05-27 | Geze Gmbh | Locking device for a wing of a door |
| DE102008056214B4 (en) * | 2008-11-06 | 2014-09-25 | Assa Abloy Sicherheitstechnik Gmbh | Locking device for a door closer, door closing system, use of a locking unit and method for locking a door |
| US8307495B1 (en) | 2010-02-18 | 2012-11-13 | Hardware Specialties, Inc. | Door cylinder |
| DE102014218860A1 (en) * | 2014-09-19 | 2016-03-24 | Ford Global Technologies, Llc | Sliding door for motor vehicles |
| USD918009S1 (en) * | 2018-03-01 | 2021-05-04 | ASSA ABLOY Accessories and Door Controls Group, Inc. | Door system |
| USD889244S1 (en) * | 2018-03-01 | 2020-07-07 | ASSA ABLOY Accessories and Door Controls Group, Inc. | Door operator |
| US11168504B2 (en) | 2020-01-31 | 2021-11-09 | Schlage Lock Company Llc | Door operator hold-open armature assembly |
| EP3971378A1 (en) * | 2020-09-21 | 2022-03-23 | Abloy Oy | A hold-open arrester arrangement having a hold-open function to hold a door open |
| EP4006287A1 (en) | 2020-11-25 | 2022-06-01 | Abloy Oy | A hold-open arrester arrangement having a hold-open function to hold a door open |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2277316A (en) * | 1941-01-02 | 1942-03-24 | Oscar C Rixson Company | Door holder |
| US3164404A (en) * | 1963-03-08 | 1965-01-05 | Rixson Inc | Automatic hold-open release |
| US3630560A (en) * | 1970-11-12 | 1971-12-28 | Glynn Johnson Corp | Surface-mounted nonhanded door holder |
| US3771823A (en) * | 1972-02-24 | 1973-11-13 | Schlage Lock Co | Electrically controlled hold-open device |
| US3926461A (en) * | 1974-08-01 | 1975-12-16 | Rixson Firemark | Electrically actuated door holder and release |
-
1979
- 1979-07-25 US US06/060,825 patent/US4286412A/en not_active Expired - Lifetime
-
1980
- 1980-07-25 CA CA356,997A patent/CA1129897A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US4286412A (en) | 1981-09-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |