AU5657698A

AU5657698A - Worktable, in particular computer table

Info

Publication number: AU5657698A
Application number: AU56576/98A
Authority: AU
Inventors: Wennemar Bree
Original assignee: EMBALL SA
Current assignee: EMBALL SA
Priority date: 1996-12-11
Filing date: 1997-12-01
Publication date: 1998-07-03
Also published as: DE59704737D1; DE19651488A1; PL334075A1; DE19651488C2; EP0948274B1; BR9713931A; EP0948274A1; ATE206023T1; CA2324407A1; WO1998025501A1

Abstract

A worktable (1), in particular computer table, has a table top (6) provided with an opening (7) and secured on a table frame (2), a keyboard drawer (11) and a monitor (17) mounted to swivel below the table top (6). In order to ensure enough leg space for the user both in the work position (I) and in the rest position (II) of the monitor (17), when the keyboard drawer (11) is moved swivelling means (16) linked to the keyboard drawer (11) enable the monitor (17) to swivel below the table top (6) around a horizontal axis (32) between an inclined front work position (I) and a rear, substantially vertical rest position (II).

Description

Work Table, specifically, Computer Table Description The invention pertains to a work table, specifically a computer table, with a table plate provided with a view opening, said plate is attached to a table frame, with an extendible keyboard drawer and a pivot-mounted, large-size monitor located underneath the table plate. Work tables of this kind, in particular computer tables with, in general, a horizontal table plate, are known in various designs. For example, there are work tables in whose table plate a view opening is supplied, which often is covered by a transparent glass pane. Below the table plate, namely in the base area surrounded by the table frame, there is a monitor or video display rigidly positioned, so that the operator seated at the work table will have free view of the monitor located under the table plate. In this case it is a severe disadvantage that the monitor under the table plate considerably restricts the foot space for the operator. If the operator wants to move as near as possible to the front edge of the table plate of the work table, he will not have sufficient leg room. Therefore, such tables are also of particularly low-height design. In addition, the optional, ergonomically favorable view angle range is dependent on the seated position of the operator, which of course cannot be attained due to the lack of leg room. Furthermore, the transparent view-glass pane as a rule is positioned planar to the table plate and is not coverable. When using the work table as writing table, this can result in scratching and damage to the glass pane. Now there has been a search for solutions that will position the monitor located under the table plate in an optimum view angle range for the operator when the monitor is located underneath the table plate of a work table or computer table. From EP 0 222 788 B 1 one such video display table is known, in which the monitor can be moved or pivoted beneath the table plate in three dimensions. Due to complicated and expensive motor controls, the monitor can be moved both in the longitudinal direction and also in the transverse direction into any position desired by the user. In addition, the monitor, which is seated in a tripod support-frame, can be pivoted about a horizontal axis, so that the monitor can be adjusted essentially to a position acceptable for the user. However, a disadvantage here is the general positioning of the monitor in the immediate foot region of the user at the work table. Thus, larger persons in particular have difficulties extending their legs under the table, and as a rule, a collision of the legs, in particular of the knee of the user with the frame supporting the monitor, will occur. Another solution according to DE 42 39 045 Al discloses a work table for computers in which the monitor can pivot by means of a pivot device about an axis parallel to the video display in a stowed and in a working position. In the working position the video display is located primarily above the working surface and in the stowed position beneath the table plate. But a disadvantage in this case is that depending on the weight of the monitor, the monitor can only be brought into its particular position by the exertion of significant amounts of force. In one refinement of this design, a counter-balancing weight is used. But this has the disadvantage that it will have to be replaced, depending on the particular weight of the monitor. In addition, the total weight of the work table is increased enormously. Likewise, this design allows only limited leg space for the user when the monitor is in the stowed position. The purpose of the invention is to create a work table, specifically a computer table of the kind described above, which allows sufficient leg room both in the working position and also in the stowed position of a large-size monitor, and which in the working position of the monitor allows free visibility to the monitor for the user and which moreover is of simple design, is low in manufacturing cost and is easy to handle. According to the invention, the problem is solved in that the monitor can pivot by means of a pivot device connected to the extractable keyboard drawer about a horizontal axis through operation of the keyboard drawer into a rear, stowed position essentially perpendicular below the table plate, and from this stowed position it can pivot into an inclined, front working position. Due to the direct linkage of the keyboard drawer with the pivot device holding the monitor, in every situation during the work of the user at the work table, optimum leg room will be ensured. As is known, the keyboard belonging to a computer is stowed in a drawer which can be shoved under the table plate of the work table when the keyboard is not in use, so that this keyboard will not interfere during the continuing work of the user when the user is not working specifically on the computer. If the user intends to use the computer and thus also the associated monitor, he must pull the drawer out from the underside of the table plate in order to be able to use the keyboard located therein. This horizontal back and forth movement of the keyboard drawer is used to bring the monitor located on the pivot device, either into its stowed position or into its working position. Of course, the pivot device in this case is designed so that the monitor in its working position will ensure an optimum range of viewing angle for the user who can view the monitor through the view opening provided in the table plate. When pushing the keyboard drawer under the table plate, the monitor located on the pivot device will be automatically positioned in the direction of the back side of the work table in its stowed position, so that leg room for the user beneath the work table will be increased- After pushing in the keyboard drawer, of course, the user can move his chair nearer to the front edge of the table plate of the work table and thus move his legs farther under the work table. Due to the pivoted-back monitor, the required leg room will thus be made available. Conversely, when the user pulls out the keyboard drawer, he moves himself and his chair away from the front edge of the table 2) plate, so that the monitor can pivot without hindrance into the now freed up leg room. According to one refinement of the invention, the pivot device is designed as a monitor-supporting profiled frame whose rear end is pivot mounted to the table frame and whose front end is connected by means of a guide rod to the keyboard drawer. The profile frame guarantees a low weight, so that the mass of the work table as a whole, can be kept relatively low. Due to the attachment of the rear end of the profile frame to the table frame, a horizontal pivot axis is created for the profile frame and thus for the monitor, about which it will pivot. A simple rod connection makes it possible to initiate the pivot movement by pulling out or pushing in the keyboard drawer. In one special design embodiment of the invented work table, the profiled frame consists of two spaced, essentially Z-shaped side parts which are connected to each other by at least two transverse supports, where the free end of the lower rear leg of each Z-shaped side part is supported by means of a tipping element to the table frame and the free end of the upper, front leg of each Z-shaped side part is pivot-mounted to the end of a guide rod distant from the keyboard drawer. In this case, a simple profiled frame is created which is easy to manufacture in large quantities and due to the transverse support and the Z-shaped side parts, it has the sole purpose of holding the usually relatively heavy monitor and creating a connection via the guide rod to the keyboard drawer. In this regard it is sufficient if the underside of the monitor rests upon the front transverse support and the back side of the monitor at the rear transverse support, so that the monitor will move itself into this position due to its inherent weight, and specifically both in the stowed position as well as in the working position. In another refinement of the idea of the invention, the free ends of the lower, rear legs of the two Z-shaped side parts are additionally connected to each other by a transverse strip which is connected to the table frame by means of the tipping element- The tipping element attached to the transverse strip is designed preferably as a hinge. For example, two mutually spaced hinges can be attached to the table frame on one side, and to the transverse strip on the other side, or a hinge strip can be provided. In order to ensure the stability of the pivot device as a whole, the points of intersection of the one Z-shaped side part are connected by means of the transverse support of the profiled frame to the particular, corresponding points of intersection of the other Z-shaped side part, whereby the points of intersection represent the connecting points between the particular, free legs and the intermediate leg of each Z shaped side part. The stability of the pivot device will be additionally increased in that at least the particular, upper, front points of intersection of the Z-shaped side parts feature a piece of reinforcing sheet metal.

'A

These pieces of reinforcing sheet metal are welded preferably between each free leg and the intermediate leg of the Z-shaped side part. Of course, it is possible to use monitors of differing design, manufacturer and size. Specifically in the stowed position of the monitor, under some circumstances it may happen that the monitor will not be properly locked in the pivot device or in the profiled frame. For this reason, the monitor can be locked in place with a length-adjustable or elastic belt attached to the profiled frame. The belt thus surrounds the housing of the monitor and provides it with sufficient support on the profiled frame. Thus, the monitor can remain upright in the stowed position without becoming detached from the profiled frame. Due to the elasticity or length-adjustability of the belt, specific adjustment to the monitor is possible. The very differing designs of the monitors to be placed under the table plate of the work table can be taken into account in that the lower, rear legs of the two Z-shaped side parts are of height-adjustable design. This can take place in a simple manner such that the lower rear leg of the Z-shaped side parts is each inserted into a casing provided at the table frame and they can be locked at a particular height by means of a screw connection. In order that operating personnel of differing size can always find an optimum range of viewing angle to the monitor, in another refinement of the invention, the table frame is of height-adjustable design. In this case, so-called elevating tables are already sufficiently well-known. Work tables can also be used whose upright longitudinal posts are height adjustable by means of a screw connection or by means of a threaded spindle connection. To prevent abrupt pivot movements of the monitor placed upon the profiled frame, for example, in case of an impact in its front or back tipped position, at least one of the lower rear legs of the Z-shaped side parts is engaged with a damping device provided on the table frame. Preferably, the damping device is designed as an adjustable, lifting cylinder. Thus, a more or less gentle pivot movement is achieved, without hard end-stops of the profiled frame, and harmful shaking of the monitor is prevented. To limit the front working position and the rear stowed position, the pivot device features in the lower rear region, an adjustable stop device for adjusting a front tipped position and/or a stop for the rear, tipped position of the profiled frame. The stop device for the working position can be preferably a rotary screw spindle which is provided with a rotary knob and which can turn, for example, in a supplemental transverse strip provided with a corresponding threading, and whose front end is braced against the table frame. For this purpose, the table frame can be provided in this region with a transverse beam, for example. Likewise, the stop for the stowed position of the profiled frame can be attached by welding to the table frame or to the mentioned transverse beam, whereby one free 4 end of this stop is behind the supplemental transverse strip of the profiled frame. Preferably, the one end of the guide rod is connected to one rotary joint attached to the underside of the keyboard drawer. Thus, the rotary movement of the guide rod relative to the profiled frame will be assured. Due to the attachment of the rotary joint underneath the keyboard drawer it is possible to support it laterally in the table frame and to guide it therein during an extension or insertion movement. In order to compensate for manufacturing tolerances between the profiled frame and the guide rod components and to allow a certain degree of spring-suspension in the particular position of the monitor, the end of the guide rod distant from the keyboard drawer, or the end near the keyboard drawer, features an elongated hole into which the free end of the upper, front leg of the corresponding Z-shaped side part is introduced. In addition, the invention provides that the guide rod is seated on one end to the side, beneath the keyboard drawer, and on the other end against the associated, Z-shaped side part. Thus, the guide rod is located at a sufficient distance to the side from the legs of the user, so that the user cannot collide with the guide rod. Furthermore, a disturbance-free and unhindered pivot motion of the profiled frame will be assured. In order to obtain a planar table plate throughout, which can be used without restrictions just like a standard writing table plate, the view opening in the table plate is covered with a transparent covering plate. In order that interfering light effects cannot adversely affect the optimum viewing of the monitor, the cover plate, in turn, is covered with a light screen or plate open in the viewing direction of the user. This light screen or plate darkens the viewing region to the video display of the monitor in an optimum manner, so that the information displayed thereon is easy to see. In addition, the invention provides that the side turned away from the user, and possibly also the side regions of the table frame, are covered by a plate lining attached to the table frame. These plate linings prevent not only an open view of the leg region of the user, and possibly also prevent draft air from blowing onto the leg region of the user, but they can also support a device connecting unit. However, this device connecting unit can be located on the table frame itself. In addition, it is expedient to place a device frame on the table frame- For example, a computer unit allocated to the monitor can be stationed directly on the table frame of the working table and be connected to the monitor. It is additionally an advantage for the profiled frame and the table frame to be manufactured from metal profiles, since these are in general very stable and can handle a large monitor weight. In addition, profiled frames of this kind are easy to manufacture and handle.

Finally, to ensure a local mobility of the working table, the invention provides that the table frame has rolling foot elements at its lower corner points. It is also self-evident that the properties stated above and those to be discussed in detail below can be applied not only in the combinations stated, but also in other combinations or as stand-alone features, without leaving the framework of the present invention. The idea underlying the invention will be explained in greater detail in the text below, based on one design example which is illustrated in the figures. We have: Figure 1 a side view of the invented work table, Figure 2 an enlarged detail Z of the work table according to Figure 1, Figure 3 a schematic, side view (partial cut-away) of the region of the view opening in the table plate when closed, Figure 4 a view of thc region of the view opening in the table plate in the half-opened state from Figure 3, Figure 5 a view of the region of the view opening in the table plate in the opened state from Figure 3, and Figure 6 another view of the region of the view opening in the table plate in the half opened state according to Figure 3. The work table 1 designed as computer table consists essentially of a table frame 2, which features upper and lower side supports 3, which are connected to each other by a perpendicular post 4. In addition, the sides of the table frame 2 are connected to each other by means of a transverse beam 5. A table plate 6 is attached to the table frame 2; this plate features a view opening 7 in its front region. The view opening 7 is covered by a transparent covering 8, preferably of glass. In addition, the view opening 7 is surrounded by a light screen 9, which is open in the direction of a viewing angle range 10 for the user, as represented by dash-dot-dash lines. In the upper supports 3 beneath the table plate 6 there is a keyboard drawer 11 on which a keyboard 12 is stowed in a computer unit (not illustrated) which can be attached to the table frame 2. This keyboard drawer 11 can be pushed in or pulled out in the direction of the double arrow A underneath the table plate 6.

The lower supports 3 of the table frame 2 each feature a rolling foot element (illustrated schematically) at their corner points. Furthermore, a plate lining 14 is attached to the table frame 2 at the back side of the work table 1. The work table 1 is also composed of a device connection 15 to which the computer unit, for instance, can be connected. In the foot region beneath the table plate 6 of the work table 1, there is a pivot device 16 which holds a monitor 17 connected to the computer unit. The pivot device 16 is formed by a profiled frame 18. This profiled frame 18 consists of two Z-shaped side parts 19 positioned to the side of the work table 1. Each of these Z-shaped side parts 19 consists of a lower, rear leg 20, one upper, front leg 21 and one intermediate leg 22 connecting them. The particular points of intersection of connection of the legs 20 and 21 with the intermediate leg 22 of the two mutually opposing Z-shaped side parts 19, are each connected together by a transverse support 23 and 24. To stabilize the profiled frame 18, a reinforcing sheet metal plate 25 is welded at the point of intersection or connection between the upper, front leg 21 and the intermediate leg 22. The monitor 17 is seated in the profiled frame 18 in such a manner that the underside of the monitor 17 rests upon the front transverse support 24 and the back side of the monitor 17 rests on the rear transverse support 23. In addition, the monitor 17 is attached by a belt 26 mounted to the profile frame 18, which belt runs around the housing of the monitor 17. The belt 26 features a snap connector 27 so that the belt 16 [sic; 26] can be detached from the monitor 17 or its length can be adjusted. The free end of the upper, front leg 21 of the Z-shaped side part 19 of the profiled frame 18 is attached so that it can slide on a guide rod 28. The guide rod 28 features an elongated hole 29 at the corresponding, free end, in which a pin 30 formed on the leg 21 can slide. The other end of the guide rod 28 is attached to a pivot joint 31 located at the underside of the keyboard drawer 11. By means of a push-in or pull-out movement of the keyboard drawer 11 in the direction of the double arrow A, the guide rod 28 pushes or pulls the upper front leg 21, with a certain tolerance, through the elongated hole 29 and thus the entire profiled frame 18 in a pivot motion according to the double arrow B about a horizontal axis 32 in the lower region of the table frame 2. In the extended state of the keyboard drawer 11, the monitor 17 indicated by solid lines moves into the working position I. In the closed state of the keyboard drawer 11, however, the monitor 17 moves over into its stowed position 11, whereby the monitor 17 and the profiled frame 18 are indicated by the dashed line. The lower, rear leg 20 of the Z-shaped side part 19 of the profiled frame 18 is engaged with an adjustable tube 33 holding the leg 20. The leg 20 is height-adjustable in the tube 33 according to the indicated, double arrow, and is locked in place by an adjusting screw 34, in order to lock differing monitor sizes in the profiled frame 18. In addition, a support arm 35 is attached to the table frame 4; the damping device 36 designed I7 as elevating cylinder is connected to the tube 33 holding the leg 20 of the profiled frame 18. This tube is preferably an oil damper whose oil pressure can be manually adjusted. This pressure is used for damping the motion and as a stop for the particular tipped settings I or II. The lower, rear legs 20 of the Z-shaped side parts 19 are additionally connected to each other by a transverse strip 37. The transverse strip 37 itself is connected by means of a tipping element 39 designed as hinge 38, in which the horizontal tipping axis 32 runs to pivot the profiled frame 18, foldingly combine with the transverse beam 5 of the table frame 2. In addition, a threaded stop 40 is provided for the transverse strip 37 with this stop braced against the transverse beam 5 of the table frame 2. In addition, the stop 40 contains a rotary knob 41 that is used to adjust the stop 40 to limit the forward tipping motion (working position I). An additional stop 42 is welded to the transverse beam 5 of the table frame 2. The opposing, not welded end 43 of the stop 42 fits behind the transverse strip 37 located on the profiled frame 18 and forms a movement limiter for the stowed position II of the profiled frame 18 supporting the monitor 17. Finally, there is a retaining plate 44 at the profiled frame 18 beneath the underside of the monitor 17 for additional support of the mount of the monitor 17 in the profiled frame 18. In Figures 3 to 6 we see the region of the view opening 7 in the table plate 6. In the view opening 7 the transparent cover plate 8preferably a pane of glass--is installed at an offset. A light screen or plate 9 made of plastic covers the cover plate 8 and in its region covering the cover plate 8, it has a thickness which corresponds to the distance between the top side of the cover plate 8 and the top side of the table plate 6. The light shield 9 has two mutually connected angles 45 and 46 at its rear longitudinal edge and they hold the light screen 9. The rear angle 46 (as seen by the user) is articulated to a first hinge 47 which, in turn, is connected to an actuating lever 48 running perpendicular under the table plate 6. At the back side of the actuating lever 48 there is an additional hinge 49 which is connected to the rear free edge in the view opening 7 of the table plate 6. The actuating lever 48 extending perpendicular under the table plate 6 is equipped with a guide roller 50. In the stowed position, that is, with the cover plate 8 covered by the light screen 9, the guide roller 50 rests upon the surface of the pushed in keyboard drawer 11 or on an actuating rocker arm (not illustrated). The actuating lever 48 is also connected to a pull spring 51 whose other end is securely attached to the table frame 1. In the closed state of the light screen 9 according to Figure 3, the guide roller 50 rests upon the keyboard drawer 11. Due to the inherent weight of the light screen 9, the pull spring 51 is under maximum tension. Now if the keyboard drawer 11 is pulled out in the direction of the arrow 2 forward toward the user, then the guide roller 50 disengages from the keyboard drawer 11, as is shown in Figure 4. Since the keyboard drawer 11 is moved away from the guide roller 50, the tensile force of the pull spring 51 causes a folding of the light screen 9 in the direction of the arrow about the second, rear hinge joint 49. Thus, the transparent cover plate 8 is initially partly released. In this state, the light screen 9 can be manually folded fully away from the user toward the rear in the direction of the arrow in Figure 5, so that the view opening 7 and thus the transparent cover plate 8 are fully released. Because the opening width of the hinge 49 is limited by the relaxation path of the pull spring 51, the hinge 47 also opens up, so that the light screen 9 can be pivoted 1800, without any hindrance occurring. The keyboard drawer 11 is then in the extended state, and the work table 1 can be used as a computer table. The keyboard located on the keyboard drawer 11 is now readily accessible and operable and the view opening 7 in the table plate 6 is released for viewing of the monitor located underneath. Figure 6 shows the state of the region of the view opening 7 in which the keyboard drawer 11 has been pushed back into its initial position according to Figure 1. Thus the guide roller 50 again comes into contact with the surface of the keyboard drawer 11, while at the same time, the pull spring 51 is fully tensioned. If for any reason a foreign object 52 is located between the transparent cover plate 8 and the folded back light screen 9, although the rear hinge 49 will indeed fully fold up, the front hinge 47 prevents the light screen 9 from folding down. Thus, any damage to or destruction of the actuating mechanism will be prevented, even though the keyboard drawer 11 has been fully pushed in again. After removal of the foreign object, the light screen 9 can be manually returned to its closed state. List of Reference Numbers 1 Work table 2 Table frame 3 Support 4 Post 5 Transverse beam 6 Table plate 7 View opening 8 Cover plate 9 Light screen or plate 10 View angle range 11 Keyboard drawer 12 Keyboard 13 Foot element 14 Plate lining 15 Device connection 16 Pivot device 17 Monitor 18 Profiled frame

Claims

1. Work table (1), specifically a computer table, with a table plate (6) provided with a view opening (7), said plate is attached to a table frame (2), with an extendible keyboard drawer (11) and a pivot-mounted monitor (17) located underneath the table plate (6), characterized in that the monitor (17) can pivot by means of a pivot device (16) connected to the extendable keyboard drawer (11) about a horizontal axis (32) through operation of the keyboard drawer (11) into a rear, stowed position (II) essentially perpendicular below the table plate (6), and from this stowed position (II) it can pivot into an inclined, front working position (1).

2. Work table according to Claim 1, characterized in that the pivot device (16) is designed as a monitor (17)-supporting profiled frame (18) whose rear end is pivot mounted to the table frame (2) and whose front end is connected by means of a guide rod (28) to the keyboard drawer (11).

3. Work table according to Claim 1, characterized in that the profiled frame (18) consists of two spaced, essentially Z-shaped side parts (19) which are connected to each other by at least two transverse supports (23, 24), where the free end of the lower rear leg (20) of each Z shaped side part (19) is supported by means of a tipping element (39) to the table frame (2) and the free end of the upper, front leg (21) of each Z shaped side part (19) is pivot-mounted to the end of the guide rod (28) distant from the keyboard drawer (11).

4. Work table according to at least one of Claims 1 [sic], characterized in that the free ends of the lower rear legs (20) of the two Z shaped side parts (19) are additionally connected to each other by a transverse strip (37) which is connected to the table frame (2) by means of the tipping element (39).

5. Work table according to at least one of Claims 1, characterized in that the points of intersection of the one Z-shaped side part (19) are connected by means of the transverse support (23, 24) of the profiled frame (18) to the particular corresponding points of intersection of the other Z-shaped side part (19).

6. Work table according to Claim 5, characterized in that at least the particular upper front points of intersection of the Z-shaped side parts (19) feature a piece of reinforcing sheet metal (25).

7. Work table according to at least one of Claims 1, characterized in that the monitor (17) rests by its lower side or back side on the transverse supports (23, 24) of the profiled frame (18).

8. Work table according to at least one of Claims 1, characterized in that the monitor (17) can be attached with a length-adjustable or elastic belt (26) to the profiled frame (18).

9. Work table according to at least one of Claims 1, characterized in that the lower rear legs (20) of the two Z-shaped side parts (19) are of height-adjustable design.

10. Work table according to at least one of Claims 1, characterized in that the table frame (2) is of height-adjustable design.

11. Work table according to at least one of Claims 1, characterized in that at least one of the lower rear legs (20) of the Z-shaped side parts (19) is engaged with a damping device (36) located at the table frame (2).

12. Work table according to Claim 11, characterized in that the damping device (36) is designed as an adjustable lifting cylinder. 11

13. Work table according to at least one of Claims 1, characterized in that the pivot device (16) features in the lower rear region an adjustable stop device (40) for adjusting of a front tipped position (1) and/or a stop (42) for the rear, tipped position (ID of the profiled frame (18).

14. Work table according to at least one of Claims 1, characterized in that one end of the guide rod (28) is connected to a rotary joint (31) located at the underside of the keyboard drawer (11).

15. Work table according to at least one of Claims 1, characterized in that the keyboard drawer (11) is seated to the side in the table frame (2) and moves therein during any extraction or insertion movement.

16. Work table according to at least one of Claims 1, characterized in that the end of the guide rod (28) distant from the keyboard drawer (11) features an elongated hole (29) into which the free end of the upper front leg (21) of the corresponding Z-shaped side part (19) is introduced.

17. Work table according to at least one of Claims 1, characterized in that the keyboard drawer (11) has an elongated hole (29) near the end of the guide rod (28) in which the free end of the upper front leg (21) of the corresponding Z-shaped side part (19) is introduced.

18. Work table according to at least one of Claims 1, characterized in that the guide rod (28) is seated on one end to the side, beneath the keyboard drawer (11), and on the other end against the associated Z shaped side part (19).

19. Work table according to Claim 1, characterized in that the view opening (7) in the table plate (6) is equipped at least in part with a transparent covering plate (8) which can be covered by a light screen or plate (9).

20. Work table according to Claim 19, characterized in that the light screen or plate (9) is connected to the keyboard drawer (11) in such a manner that the light screen or plate (9) releases the cover plate (8) when the keyboard drawer (11) is actuated into its working position and covers the cover plate (8) when the keyboard drawer (11) is actuated into its stowed position. 20. Work table according to Claim 20, characterized in that the light screen or plate (9) is attached to the table plate (6) with a double-joint hinge (47, 49) which is connected to an actuating lever (48) which features a guide roller (50), which can be brought to engage with the keyboard drawer (11) or with an actuating rocker arm connected to it, whereby the actuating lever (48) is spring loaded (52) [sic; (51)] with respect to the table frame (2).

21. Work table according to Claim 1, characterized in that the side facing away from the user, and perhaps also the side regions of the table frame (2), are covered by a plate lining (14) attached thereto.

22. Work table according to Claim 22, characterized in that a device connection unit (15) is provided for the table frame (2) or for the associated plate lining (14).

23. Work table according to Claim 1, characterized in that a device holder is provided on the table frame (2).

24. Work table according to at least one of Claims 1, characterized in that the profiled frame (18) and the table frame (2) consist of metal profiles.

25. Work table according to at least one of Claims 1, characterized in that the table frame (2) is provided with roll-motion foot elements (13) at its lower comer points.