US20060075933A1 - Supporting arrangement for a presentation device - Google Patents
Supporting arrangement for a presentation device Download PDFInfo
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- US20060075933A1 US20060075933A1 US10/544,299 US54429905A US2006075933A1 US 20060075933 A1 US20060075933 A1 US 20060075933A1 US 54429905 A US54429905 A US 54429905A US 2006075933 A1 US2006075933 A1 US 2006075933A1
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- Prior art keywords
- stand
- maneuvering means
- work surface
- leg support
- guide groove
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- 230000008859 change Effects 0.000 claims abstract description 10
- 230000007246 mechanism Effects 0.000 claims description 5
- 238000006073 displacement reaction Methods 0.000 claims 1
- 230000036544 posture Effects 0.000 description 34
- 230000007704 transition Effects 0.000 description 6
- 230000001360 synchronised effect Effects 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 210000003128 head Anatomy 0.000 description 2
- 238000011835 investigation Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000002595 magnetic resonance imaging Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000005019 pattern of movement Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000003319 supportive effect Effects 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B21/00—Tables or desks for office equipment, e.g. typewriters, keyboards
- A47B21/02—Tables or desks for office equipment, e.g. typewriters, keyboards with vertical adjustable parts
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B2200/00—General construction of tables or desks
- A47B2200/0035—Tables or desks with features relating to adjustability or folding
- A47B2200/004—Top adjustment
- A47B2200/0043—Inclination adjustable work top
Definitions
- the present invention relates to the field of ergonomics at a working place, for instance in respect of computerised work and then in particular in connection with image screen work.
- the diagnostic examination of the images of patients obtained by x-ray investigations, magnetic resonance imaging, and ultrasound investigations required significant concentration and is more or less stressful, depending on prevailing circumstances with regard to light functions and also to the ergonomic strain to which the viewer is subjected.
- U.S. Pat. No. 5,339,750 teaches an adjustable worktable that includes two individually raisable and lowerable work surfaces where the angular position of each work surface can also be adjusted individually. It is also disclosed in this patent specification that a convenient field of use is computer usage, where one work surface is used to support a computer screen and one work surface is used to support a keyboard, etc.
- Available workstations for instance workstations operating in accordance with the principle described in the aforesaid patent specification, are generally equipped for motorised vertical height adjustment for limited adaptation of the position of the tabletop and image presentation screens in relation to different users.
- the invention eliminates the aforesaid drawbacks by minimising deviations in the distance of the user's eyes to the image presentation screen both horizontally and vertically in a transition between an upright sitting posture and a rearwardly inclined posture.
- the manoeuvring device also enables the tabletop to be angled in the horizontal plane to suit a standing working posture without altering the distance of the user's eyes from the presentation screen concerned.
- the invention relates to a supporting arrangement in an image screen working station, including coordinated multifunctional motorised or mechanical counterbalanced movement of the tabletop and the image presentation screen relative to the different sitting and standing working postures of the user.
- a station for image screen work including coordinated multifunctional motorised or mechanical counterbalanced movement for the user's work surface and image screen supporting device relative to the different sitting and standing working postures of the user is effective in optimising the eye distance and position of the user in relation to an image presentation screen. Several image presentation screens may be handled simultaneously.
- the relationship between the user's work surface and the image screen supporting arrangement can be controlled mechanically, wherein the design of the supporting device can be adapted to a desired change in the relative position between said surface and said supporting arrangement, for instance by providing the stand with a guide groove as in the case of the illustrated exemplifying embodiment.
- the relationship between the user's work surface and the image screen supporting arrangement may be controlled mechanically, wherein the design of said supporting arrangement can be adapted to a desired change in position between said surface and said supporting arrangement, either by replacing appropriate parts of the arrangement or by providing said arrangement with adjustable functions.
- the invention also provides a limitation and adaptation of said multifunctional movement in respect of a standing working posture. Also provided is automatic limitation of the coordinated multifunctional movement, whose limitation is activated by the vertical height movement above a maximum height in respect of a seated working posture, so as not to alter the distance between the user's eyes and the image screen when angling the work surface with the user in a standing posture.
- the multifunctional movement is coordinated with the movement of the inventive subject in a vertical direction, so as to maintain a constant distance between the shortest distance of the tabletop to the surface of the floor.
- a co-ordinated function is provided between the angling of the work surface in the horizontal plane, caused by said multifunctional movement, with the movement in said vertical direction, so as to maintain a constant distance between the shortest distance of the work surface to the surface of the floor.
- a horizontal tabletop which retains its position in the event of a change in the angle and height of the movable desk shelf and image screen shelf. Also included is a horizontal work surface that retains its position in the event of a change to the angle and height of the movable table surface and to the arrangement for supporting the image screen unit.
- FIG. 1 illustrates an embodiment of the invention intended for an upright sitting posture, and shows units and distances of significance
- FIG. 2 illustrates the embodiment in an angularly changed position for a rearwardly inclined seating posture
- FIG. 3 illustrates an embodiment in a position for a standing working posture
- FIG. 4 illustrates an embodiment in an angularly changed position for a standing working posture
- FIG. 5 illustrates the function of the guide groove in respect to the relative movement of the tabletop and the image presentation screen, where reference 5 a indicates an unchanged position between work surface and screen and where reference 5 b indicates a first angularly changed position, while reference 5 c indicates a second angularly changed position.
- the illustrations 4 - 7 in FIG. 5 d show four possible designs of the guide groove for four different patterns of movement between the angular positions of the tabletop and the screen.
- FIG. 1 The exemplifying embodiments of the invention illustrated in FIG. 1 include a presentation device in the form of a display screen 2 in connection with a work surface in the form of a tabletop 3 .
- the screen is releasably mounted on a supportive device in the form of a screen plate 4 . All of these units can be displaced vertically at one and the same time, by virtue of being fixedly mounted on a stand 5 which, in turn, is mounted on a vertically extendable leg arrangement 13 , for instance a telescopic arrangement.
- the stand 5 is provided with a guide groove 7 into which a stand bearing S is intended to be displaced by one end of a manoeuvring device 6 .
- the manoeuvring device 6 may have the form of a pneumatic spring or of a motorised setting device whose other end is mounted on the stand 5 , either directly or indirectly.
- the bearing is placed on the uppermost part 13 A of the leg arrangement 13 .
- the tabletop 3 is fastened to an angle-adjustable or pivotal frame 8 which is mounted in the stand 5 in a frame bearing 8 A.
- One end of a forwardly located link arm 9 is mounted on the pivotal frame 8 , while the other end of said arm is mounted on an attachment arm 11 on which the screen plate 4 is firmly mounted.
- One end of a rearwardly located link arm 10 is mounted on a displaceable frame bearing S while the other end of said arm 10 is also mounted on the attachment arm 11 .
- This construction of a link mechanism 6 , 7 , 8 , 9 , 10 , 11 enables the movements and degrees of freedom of the screen and the tabletop to be varied to an extent greater than the actual need, by appropriate dimensioning of the units consisting of the manoeuvring device 6 , the guide groove 7 , the pivotal frame 8 , the forwardly located link arm 9 , the rearwardly located link arm 10 and the distance between the bearings in the attachment frame 11 , with respect to size and placement.
- the guide groove 7 is provided on the fixed stand 5 , which is not angled.
- the manoeuvring device 6 and the rearwardly located link arm 10 are fastened in the guide groove 7 .
- the pivotal frame 8 constitutes a fourth link between a rearwardly located link bearing 81 and a forwardly located link bearing 82 . This results in a four-link mechanism, which is adapted for movement by the manoeuvring device 6 , while the mechanism as a whole—which is supported by the fourth link—is also pivotal about the frame bearing 8 A.
- FIG. 1 The following distances or spacings have been shown in FIG. 1 with the intention of further illustrating the geometries concerned: a perpendicular image screen distance aX 1 , a horizontal image screen distance bX 1 and the horizontal table height bY 1 , the image screen height cY 1 and the height of the user's eyes aY 1 , all in relation to a floor surface 12 .
- the angle defined by the image screen and the table surface has been referenced ⁇ 1 .
- FIG. 2 shows a changed angular position, corresponding to a rearwardly inclined working posture.
- the forwardly located link arm 9 and the rearwardly located link arm 10 form a flexible parallelogram such that the forward link arm 9 will be controlled by the rearward link arm 10 .
- the region in which the manoeuvring device 6 moves and its length of stroke, coupled with the length and design of the guide groove 7 and the lengths 9 L and 10 L of respective link arms and their mutual length relationships control the coordinated movement regions of the tabletop 3 and the image screen 2 .
- the geometries have been changed by reducing the height of the user's eyes 1 to aY 2 , which corresponds to cY 1 , and the front edge of the table surface has been lowered to bY 2 .
- FIG. 3 illustrates the arrangement adapted for an upstanding working posture, where the geometries in respect of the perpendicular screen distance aX 1 and the horizontal screen distance bX 1 are the same as those shown in FIG. 1 , although the distance of the horizontal table surface bY 3 , and the screen height cY 3 and the height of the user's eyes aY 3 from the surface of the floor have, of course, been increased.
- an increase in the angle of the tabletop 3 and the screen plate 4 of equal magnitude is particularly beneficial, or indeed necessary, in the case of a standing working posture, where the user's eyes 1 relative to the screen 2 in the case of a desk-like angling of the tabletop 3 does not change as when a transition is made between an upright sitting posture and a rearwardly inclined posture. It is therefore appropriate to restrict angling of the tabletop 3 to the synchronised region of the screen plate 4 above the maximum height of said tabletop 3 intended for a seated working posture. This limitation may, for instance, be activated by the unit responsible for the vertical height movement 13 in the transition between a seated and a standing working posture.
- the pattern of movement of the tabletop 3 and the image screen 2 can be varied without practical limitations to construction and measurement geometry, by giving the guide groove 7 the shape and size illustrated in FIGS. 5 d 4 , 5 d 5 , 5 d 6 and 5 d 7 .
- this flexibility can be utilised by replacing the stand 5 , or parts thereof, with another desirable guide groove, or by enabling the shape and length of the guide groove to be adjusted (not shown).
- the design of the guide groove shown in FIG. 5 d 4 is identical with the design of the guide groove shown in FIGS. 5 a , 5 b and 5 c .
- the synchronised angling of the tabletop and the image screen can be increased by increasing the inclined radius-forming part of the guide groove in accordance with FIG. 5 d 5 .
- the design of the guide groove 7 according to FIG. 5 d 6 i.e. in the absence of radius-controlled movement and synchronisation, provides a comparatively slow increase in the angling of the image screen in relation to the tabletop, while the design according to FIG. 5 d 7 provides a faster increase in the angular difference.
- the distance between the front part of the tabletop and the surface of the floor 12 can be kept constant, by synchronising vertical movement away from the floor surface 12 with the unit responsible for said vertical height movement 13 A, in parallel with angling of the tabletop 3 .
- the angle defined by the tabletop 3 with the screen plate 4 can be increased, e.g. synchronised, by forming the guide groove 7 as a radius with its origin of co-ordinates in the rotational centre 8 A of the pivotal frame 8 , see FIG. 5 d 5 .
- This part of the guide groove may otherwise be straight, see FIG. 5 d 4 , instead of being radius-forming, depending on the mutual measurement conditions.
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- Control Of Vending Devices And Auxiliary Devices For Vending Devices (AREA)
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- Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
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Abstract
An arrangement for supporting a presentation device, for example in the form of an image presentation screen, wherein a work surface is connected to the supporting arrangement, wherein the supporting arrangement and the work surface are both vertically and transversely movable and pivotally disposed, and wherein the pivotal movement of the work surface is forcibly coupled to the angular movement of the supporting arrangement such as to achieve simultaneously a change in the angle of the supporting arrangement in relating to a stand on the one hand, and a change in the angle of the work surface in relation to the stand on the other hand, in response to the influence exerted by a maneuvering device.
Description
- The present invention relates to the field of ergonomics at a working place, for instance in respect of computerised work and then in particular in connection with image screen work.
- The use of working stations for computerised terminal work varies from simple routines to a more complicated medicinal use.
- The diagnostic examination of the images of patients obtained by x-ray investigations, magnetic resonance imaging, and ultrasound investigations required significant concentration and is more or less stressful, depending on prevailing circumstances with regard to light functions and also to the ergonomic strain to which the viewer is subjected.
- The examination of analog images in so-called light cabinets is either adapted for a seated or for standing working posture, but, seen totally, is encumbered with serious ergonomic deficiencies with respect to both visual ergonomics and viewer-afflicting ergonomics.
- However, the examination of digital images at computerised working stations affords many technical and ergonomic benefits that facilitate image handling processes, analyses and diagnoses in comparison with analog techniques. Unfortunately, the remainder of the equipment, so-called terminal work stations, are not adapted to suit the desiderata and requirements of vision ergonomics and viewer-afflicting ergonomics.
- It is generally known that a change in working posture will relieve the load on the spine and on the extremities of the person concerned, in addition to being restful. For example, the transition from an upright sitting posture to a rearwardly inclined sitting posture results in a significant change in the position of the said person and also in his or her positional relationship with the image presentation device. In respect of an upright sitting posture, the head of the viewer should be inclined slightly forwards and with his/her eyes directed downwards, so as to facilitate the function of the eyes' tear ducts, among other things. The transition to a rearwardly inclined seated working posture makes viewing of the presentation screen difficult to achieve, because the screen is too far away, wrongly angled and does not permit perpendicular focusing, and because the viewer is too low and is necessitated to bend his/her head forwards. This is particularly problematic for users that wear progressive spectacles, whose optical properties mean that the lower field of vision is adapted to a focal distance that deviates in relation to the image presentation screen. This drawback constitutes a serious vision ergonomic and tiring disadvantages, partly as a result of a wrong working posture, which sooner or later results in strain-induced injuries.
- It is impractical to adjust every image presentation screen when changing a working posture, both from an ergonomical aspect and from a time-consuming aspect.
- The need to adjust the angle of the equipment to varying extents in order to suit the differences in body structure of individual users is also found in a standing working posture. A typical example in this regard is found in old-fashioned writing desks, which in practical use resulted in a tabletop that was angled to the vertical plane to a greater or lesser extent.
- U.S. Pat. No. 5,339,750 teaches an adjustable worktable that includes two individually raisable and lowerable work surfaces where the angular position of each work surface can also be adjusted individually. It is also disclosed in this patent specification that a convenient field of use is computer usage, where one work surface is used to support a computer screen and one work surface is used to support a keyboard, etc.
- Available workstations, for instance workstations operating in accordance with the principle described in the aforesaid patent specification, are generally equipped for motorised vertical height adjustment for limited adaptation of the position of the tabletop and image presentation screens in relation to different users.
- The ergonomical deficiencies of computerised workstations can be summarised as follows: The distance of the user's eyes from the screen concerned is varied considerably both horizontally and vertically in the transition between an upright sitting position and a rearwardly inclined position, and also in combination with a standing working posture. The tabletop cannot be adapted with regard to a standing posture. Moreover, manoeuvring of the different tabletops in achieving said adjustments cannot be effected quickly and simply.
- The invention eliminates the aforesaid drawbacks by minimising deviations in the distance of the user's eyes to the image presentation screen both horizontally and vertically in a transition between an upright sitting posture and a rearwardly inclined posture.
- In addition, there is achieved a continuous optimised working posture in relation to the presentation device and the work surface despite changes between an upright sitting posture and a rearwardly inclined posture through the medium of only one single manoeuvring device, thereby enabling the vertical position and the inclination of a presentation device and a work surface to be adjusted quickly and simply.
- The manoeuvring device also enables the tabletop to be angled in the horizontal plane to suit a standing working posture without altering the distance of the user's eyes from the presentation screen concerned.
- These objects are fulfilled by the present invention as defined in the accompanying independent claim. Suitable embodiments of the invention will be apparent from the depending claims.
- As illustrated in the following exemplifying embodiment of the invention, the invention relates to a supporting arrangement in an image screen working station, including coordinated multifunctional motorised or mechanical counterbalanced movement of the tabletop and the image presentation screen relative to the different sitting and standing working postures of the user. A station for image screen work including coordinated multifunctional motorised or mechanical counterbalanced movement for the user's work surface and image screen supporting device relative to the different sitting and standing working postures of the user is effective in optimising the eye distance and position of the user in relation to an image presentation screen. Several image presentation screens may be handled simultaneously.
- The relationship between the user's work surface and the image screen supporting arrangement can be controlled mechanically, wherein the design of the supporting device can be adapted to a desired change in the relative position between said surface and said supporting arrangement, for instance by providing the stand with a guide groove as in the case of the illustrated exemplifying embodiment. The relationship between the user's work surface and the image screen supporting arrangement may be controlled mechanically, wherein the design of said supporting arrangement can be adapted to a desired change in position between said surface and said supporting arrangement, either by replacing appropriate parts of the arrangement or by providing said arrangement with adjustable functions.
- The invention also provides a limitation and adaptation of said multifunctional movement in respect of a standing working posture. Also provided is automatic limitation of the coordinated multifunctional movement, whose limitation is activated by the vertical height movement above a maximum height in respect of a seated working posture, so as not to alter the distance between the user's eyes and the image screen when angling the work surface with the user in a standing posture.
- The multifunctional movement is coordinated with the movement of the inventive subject in a vertical direction, so as to maintain a constant distance between the shortest distance of the tabletop to the surface of the floor. A co-ordinated function is provided between the angling of the work surface in the horizontal plane, caused by said multifunctional movement, with the movement in said vertical direction, so as to maintain a constant distance between the shortest distance of the work surface to the surface of the floor.
- Also included is a horizontal tabletop which retains its position in the event of a change in the angle and height of the movable desk shelf and image screen shelf. Also included is a horizontal work surface that retains its position in the event of a change to the angle and height of the movable table surface and to the arrangement for supporting the image screen unit.
- It also lies within the scope of the invention to connect the means for achieving said angular and height changes to the seat in which the user sits, so that the user is able to react immediately to his/her changed sitting position, by changing the angle of the chair backrest and/or by changing the height position of the chair cushion.
- The invention will now be described in more detail with reference to an exemplifying embodiment thereof and also with reference to the accompanying drawings, in which
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FIG. 1 illustrates an embodiment of the invention intended for an upright sitting posture, and shows units and distances of significance; -
FIG. 2 illustrates the embodiment in an angularly changed position for a rearwardly inclined seating posture; -
FIG. 3 illustrates an embodiment in a position for a standing working posture; -
FIG. 4 illustrates an embodiment in an angularly changed position for a standing working posture; and -
FIG. 5 illustrates the function of the guide groove in respect to the relative movement of the tabletop and the image presentation screen, where reference 5 a indicates an unchanged position between work surface and screen and where reference 5 b indicates a first angularly changed position, while reference 5 c indicates a second angularly changed position. The illustrations 4-7 inFIG. 5 d show four possible designs of the guide groove for four different patterns of movement between the angular positions of the tabletop and the screen. - The exemplifying embodiments of the invention illustrated in
FIG. 1 include a presentation device in the form of adisplay screen 2 in connection with a work surface in the form of atabletop 3. The screen is releasably mounted on a supportive device in the form of ascreen plate 4. All of these units can be displaced vertically at one and the same time, by virtue of being fixedly mounted on astand 5 which, in turn, is mounted on a verticallyextendable leg arrangement 13, for instance a telescopic arrangement. - To enable the
screen 2 and thetabletop 3 to be positioned as desired and as necessary in relation to the user's eyes, referenced 1 in the figure, and different postures of the user's body, thestand 5 is provided with aguide groove 7 into which a stand bearing S is intended to be displaced by one end of amanoeuvring device 6. Themanoeuvring device 6 may have the form of a pneumatic spring or of a motorised setting device whose other end is mounted on thestand 5, either directly or indirectly. In the case of the illustrated embodiment, the bearing is placed on theuppermost part 13A of theleg arrangement 13. Thetabletop 3 is fastened to an angle-adjustable orpivotal frame 8 which is mounted in thestand 5 in a frame bearing 8A. One end of a forwardly locatedlink arm 9 is mounted on thepivotal frame 8, while the other end of said arm is mounted on anattachment arm 11 on which thescreen plate 4 is firmly mounted. One end of a rearwardly locatedlink arm 10 is mounted on a displaceable frame bearing S while the other end of saidarm 10 is also mounted on theattachment arm 11. - This construction of a
link mechanism manoeuvring device 6, theguide groove 7, thepivotal frame 8, the forwardly locatedlink arm 9, the rearwardly locatedlink arm 10 and the distance between the bearings in theattachment frame 11, with respect to size and placement. - The
guide groove 7 is provided on thefixed stand 5, which is not angled. Themanoeuvring device 6 and the rearwardly locatedlink arm 10 are fastened in theguide groove 7. Thepivotal frame 8 constitutes a fourth link between a rearwardly located link bearing 81 and a forwardly located link bearing 82. This results in a four-link mechanism, which is adapted for movement by themanoeuvring device 6, while the mechanism as a whole—which is supported by the fourth link—is also pivotal about the frame bearing 8A. - The following distances or spacings have been shown in
FIG. 1 with the intention of further illustrating the geometries concerned: a perpendicular image screen distance aX1, a horizontal image screen distance bX1 and the horizontal table height bY1, the image screen height cY1 and the height of the user's eyes aY1, all in relation to afloor surface 12. The angle defined by the image screen and the table surface has been referenced α1. -
FIG. 2 shows a changed angular position, corresponding to a rearwardly inclined working posture. As will be seen fromFIG. 2 , the forwardly locatedlink arm 9 and the rearwardly locatedlink arm 10 form a flexible parallelogram such that theforward link arm 9 will be controlled by therearward link arm 10. The region in which themanoeuvring device 6 moves and its length of stroke, coupled with the length and design of theguide groove 7 and thelengths 9L and 10L of respective link arms and their mutual length relationships control the coordinated movement regions of thetabletop 3 and theimage screen 2. - In this case, the geometries have been changed by reducing the height of the user's
eyes 1 to aY2, which corresponds to cY1, and the front edge of the table surface has been lowered to bY2. The perpendicular screen distance aX1 and the horizontal screen distance bX1 and the angle of the screen to the table surface α1=α2 are, however, constant. -
FIG. 3 illustrates the arrangement adapted for an upstanding working posture, where the geometries in respect of the perpendicular screen distance aX1 and the horizontal screen distance bX1 are the same as those shown inFIG. 1 , although the distance of the horizontal table surface bY3, and the screen height cY3 and the height of the user's eyes aY3 from the surface of the floor have, of course, been increased. The angle defined by the image screen with the table surface is constant, i.e. α3=α1=α2. - However, according to
FIG. 4 , an increase in the angle of thetabletop 3 and thescreen plate 4 of equal magnitude is particularly beneficial, or indeed necessary, in the case of a standing working posture, where the user'seyes 1 relative to thescreen 2 in the case of a desk-like angling of thetabletop 3 does not change as when a transition is made between an upright sitting posture and a rearwardly inclined posture. It is therefore appropriate to restrict angling of thetabletop 3 to the synchronised region of thescreen plate 4 above the maximum height of saidtabletop 3 intended for a seated working posture. This limitation may, for instance, be activated by the unit responsible for thevertical height movement 13 in the transition between a seated and a standing working posture. The geometries concerning the perpendicular screen distance aX1 and the horizontal screen distance bX1 and the screen angle to the horizontal plane are still constant, i.e. α3=α1=α2. However, the tabletop is given an angle α4 to the horizontal plane, since the stand bearing S has been moved along an angled part of theguide groove 7, solely by themanoeuvring device 6. bY3 (FIG. 3 ) has herewith been reduced by bY4, while cY3 and aY3 remain constant. - As will be evident from
FIG. 5 , the pattern of movement of thetabletop 3 and theimage screen 2 can be varied without practical limitations to construction and measurement geometry, by giving theguide groove 7 the shape and size illustrated inFIGS. 5 d 4, 5d 5, 5d 6 and 5d 7. When necessary, this flexibility can be utilised by replacing thestand 5, or parts thereof, with another desirable guide groove, or by enabling the shape and length of the guide groove to be adjusted (not shown). - The design of the guide groove shown in
FIG. 5 d 4 is identical with the design of the guide groove shown inFIGS. 5 a, 5 b and 5 c. The synchronised angling of the tabletop and the image screen can be increased by increasing the inclined radius-forming part of the guide groove in accordance withFIG. 5 d 5. The design of theguide groove 7 according toFIG. 5 d 6, i.e. in the absence of radius-controlled movement and synchronisation, provides a comparatively slow increase in the angling of the image screen in relation to the tabletop, while the design according toFIG. 5 d 7 provides a faster increase in the angular difference. - The distance between the front part of the tabletop and the surface of the
floor 12 can be kept constant, by synchronising vertical movement away from thefloor surface 12 with the unit responsible for saidvertical height movement 13A, in parallel with angling of thetabletop 3. - The angle defined by the
tabletop 3 with thescreen plate 4 can be increased, e.g. synchronised, by forming theguide groove 7 as a radius with its origin of co-ordinates in therotational centre 8A of thepivotal frame 8, seeFIG. 5 d 5. This part of the guide groove may otherwise be straight, seeFIG. 5 d 4, instead of being radius-forming, depending on the mutual measurement conditions.
Claims (21)
1-12. (canceled)
13. A presentation device comprising:
a stand;
an image screen mounted to said stand;
supporting apparatus pivotably mounted to said stand;
a work surface mounted to said supporting apparatus, said work surface and said supporting apparatus being vertically and transversely movable, the pivotal movement of said work surface is forcibly coupled to the pivotal movement of said supporting apparatus; and
maneuvering means coupled to said stand so as to simultaneously change the angle of said supporting apparatus and the angle of said work surface in relation to said stand.
14. The device according to claim 13 , wherein the forced angular movement is controlled by a link mechanism.
15. The device according to claim 14 , wherein said link mechanism includes a pivotal frame which is pivotable about a bearing in said stand, a forwardly located link arm, a rearwardly located link arm and an attachment arm, wherein said rearwardly located link arm is connected to said pivotal frame through the medium of a rearwardly located link bearing, and wherein said forwardly located link arm is connected to said pivotal frame through the medium of a forwardly located link bearing.
16. The device according to claim 15 , wherein one end of said rearwardly located link arm is provided with a stand bearing, which is movable in a guide groove in the stand.
17. The device according to claim 16 , wherein said maneuvering means is adapted to cause displacement of said stand bearing in said guide groove.
18. The device according to claim 17 , wherein said maneuvering means has the form of a pneumatic piston-cylinder device, which is connected at one end to said stand bearing and at the other end to said stand.
19. The device according to claim 13 , and further comprising:
a vertically extendable leg support; and
a further maneuvering means;
wherein said supporting apparatus, said work surface, said maneuvering means, and said stand are mounted on an upper part of said leg support.
20. The device according to claim 14 , and further comprising:
a vertically extendable leg support; and
a further maneuvering means;
wherein said supporting apparatus, said work surface, said maneuvering means, and said stand are mounted on an upper part of said leg support.
21. The device according to claim 15 , and further comprising:
a vertically extendable leg support; and
a further maneuvering means;
wherein said supporting apparatus, said work surface, said maneuvering means, and said stand are mounted on an upper part of said leg support.
22. The device according to claim 16 , and further comprising:
a vertically extendable leg support; and
a further maneuvering means;
wherein said supporting apparatus, said work surface, said maneuvering means, and said stand are mounted on an upper part of said leg support.
23. The device according to claim 17 , and further comprising:
a vertically extendable leg support; and
a further maneuvering means;
wherein said supporting apparatus, said work surface, said maneuvering means, and said stand are mounted on an upper part of said leg support.
24. The device according to claim 18 , and further comprising:
a vertically extendable leg support; and
a further maneuvering means;
wherein said supporting apparatus, said work surface, said maneuvering means, and said stand are mounted on an upper part of said leg support.
25. The device according to claim 16 , wherein at least a part of said guide groove is rectilinear.
26. The device according to claim 17 , wherein at least a part of said guide groove is rectilinear.
27. The device according to claim 18 , wherein at least a part of said guide groove is rectilinear.
28. The device according to claim 19 , wherein at least a part of said guide groove is rectilinear.
29. The device according to claim 25 , wherein said guide groove extends selectively in a horizontal direction or defines an angle with the horizontal.
30. The device according to claim 25 , wherein said guide groove also includes a part which is angled in relation to said rectilinear part.
31. The device according to claim 30 , wherein said angled part of said guide groove is selectively rectilinear or includes part of the arc of a circle with its radius in the bearing of said pivotal frame.
32. The device according to claim 13 , wherein said maneuvering means is controlled by vertical or angular movements, or both, of the cushion or backrest, or both, of a chair.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/265,547 US20090095868A1 (en) | 2003-02-06 | 2008-11-05 | Supporting arrangement for a presentation device |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE0300306-8 | 2003-02-06 | ||
SE0300306A SE524797C2 (en) | 2003-02-06 | 2003-02-06 | Carrier for a presentation organ |
PCT/SE2004/000047 WO2004069002A1 (en) | 2003-02-06 | 2004-02-05 | Supporting arrangement for a presentation device |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/265,547 Continuation-In-Part US20090095868A1 (en) | 2003-02-06 | 2008-11-05 | Supporting arrangement for a presentation device |
Publications (1)
Publication Number | Publication Date |
---|---|
US20060075933A1 true US20060075933A1 (en) | 2006-04-13 |
Family
ID=20290318
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/544,299 Abandoned US20060075933A1 (en) | 2003-02-06 | 2004-02-05 | Supporting arrangement for a presentation device |
Country Status (7)
Country | Link |
---|---|
US (1) | US20060075933A1 (en) |
EP (1) | EP1596687B1 (en) |
AT (1) | ATE356562T1 (en) |
DE (1) | DE602004005317T2 (en) |
ES (1) | ES2283980T3 (en) |
SE (1) | SE524797C2 (en) |
WO (1) | WO2004069002A1 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090194648A1 (en) * | 2008-02-06 | 2009-08-06 | Todd Fridley | Base lock television stand |
US10064484B2 (en) * | 2016-09-06 | 2018-09-04 | Sing Bee Enterprise Co., Ltd. | Lift table |
US20190335896A1 (en) * | 2016-06-28 | 2019-11-07 | Workmotions Ab | Ergonomic workstation |
CN111096549A (en) * | 2018-10-25 | 2020-05-05 | 国誉株式会社 | Table (Ref. Table) |
WO2022047853A1 (en) * | 2020-09-01 | 2022-03-10 | 四川爱派机器人科技有限公司 | Method and apparatus for reducing body stress by means of intelligent interactive motion |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202015104418U1 (en) * | 2015-08-20 | 2016-11-22 | Pöttker Gesellschaft mit beschränkter Haftung | Lift fitting for a table top |
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-
2003
- 2003-02-06 SE SE0300306A patent/SE524797C2/en not_active IP Right Cessation
-
2004
- 2004-02-05 AT AT04708533T patent/ATE356562T1/en not_active IP Right Cessation
- 2004-02-05 US US10/544,299 patent/US20060075933A1/en not_active Abandoned
- 2004-02-05 ES ES04708533T patent/ES2283980T3/en not_active Expired - Lifetime
- 2004-02-05 DE DE602004005317T patent/DE602004005317T2/en not_active Expired - Lifetime
- 2004-02-05 WO PCT/SE2004/000047 patent/WO2004069002A1/en active IP Right Grant
- 2004-02-05 EP EP04708533A patent/EP1596687B1/en not_active Expired - Lifetime
Patent Citations (11)
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US4691888A (en) * | 1984-08-06 | 1987-09-08 | Cotterill Michael J | Keyboard support |
US4779922A (en) * | 1986-11-25 | 1988-10-25 | Cooper Lloyd G B | Work station system |
US4843978A (en) * | 1987-07-27 | 1989-07-04 | Hon Industries, Inc. | Table with vertically adjustable work surface |
US5044284A (en) * | 1990-03-01 | 1991-09-03 | Milton Gross | Computer workstation |
US5398622A (en) * | 1991-10-10 | 1995-03-21 | Steelcase Inc. | Adjustable dual worksurface support |
US5339750A (en) * | 1992-03-27 | 1994-08-23 | Hamilton Industries | Adjustable work table |
US5522323A (en) * | 1993-08-24 | 1996-06-04 | Richard; Paul E. | Ergonimic computer workstation and method of using |
US5857415A (en) * | 1993-08-24 | 1999-01-12 | Richard; Paul E. | Ergonomic computer workstation and method of using |
US5765797A (en) * | 1995-12-12 | 1998-06-16 | Greene; H. Peter | Articulated support for computers and the like |
US5862761A (en) * | 1997-08-19 | 1999-01-26 | Balt, Inc. | Scamp and housing therefor |
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Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090194648A1 (en) * | 2008-02-06 | 2009-08-06 | Todd Fridley | Base lock television stand |
US20190335896A1 (en) * | 2016-06-28 | 2019-11-07 | Workmotions Ab | Ergonomic workstation |
EP3474702A4 (en) * | 2016-06-28 | 2019-11-13 | Workmotions AB | Ergonomic workstation |
US10758040B2 (en) * | 2016-06-28 | 2020-09-01 | Workmotions Ab | Ergonomic workstation |
US10064484B2 (en) * | 2016-09-06 | 2018-09-04 | Sing Bee Enterprise Co., Ltd. | Lift table |
CN111096549A (en) * | 2018-10-25 | 2020-05-05 | 国誉株式会社 | Table (Ref. Table) |
WO2022047853A1 (en) * | 2020-09-01 | 2022-03-10 | 四川爱派机器人科技有限公司 | Method and apparatus for reducing body stress by means of intelligent interactive motion |
Also Published As
Publication number | Publication date |
---|---|
ATE356562T1 (en) | 2007-04-15 |
WO2004069002A1 (en) | 2004-08-19 |
ES2283980T3 (en) | 2007-11-01 |
EP1596687B1 (en) | 2007-03-14 |
SE524797C2 (en) | 2004-10-05 |
DE602004005317T2 (en) | 2007-12-20 |
SE0300306D0 (en) | 2003-02-06 |
EP1596687A1 (en) | 2005-11-23 |
DE602004005317D1 (en) | 2007-04-26 |
SE0300306L (en) | 2004-08-07 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: AO MEDICAL PRODUCTS SWEDEN AKTIEBOLAG, SWEDEN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:OHLSON, CARL-ERIC;REEL/FRAME:017169/0516 Effective date: 20050808 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |