DE4018732C1 - Work surface for office table - has stand between bars to hold boards to support work surface - Google Patents

Abstract

The work table has a work surface of adjustable height, with two vertically running profiled bars (8,9). A stand (2) between the bars (8,9) holds boards (11,12) with the long edges (25) held in a groove (26) which allows vertical movement in the bars (8,9). The work surface (1) is secured directly or indirectly to the boards (11,12). Each stand (2) has a bridge piece (20) secured to the vertical rods. A gear (16) is connected between the bridge (20) and the board-shaped piece (11,12). A U-shaped ledge (15) is arranged in the grooves (26) of the profiled rods (8,9). USE/ADVANTAGE - The gear for adjusting the table height uses little space and requires no extra support.

Description

The invention relates to a work table, in particular Office table, the height-adjustable worktop is supported by a frame, the side arranged stand at least two apart and have vertically extending profile bars.

Such a work table is in DE-GM 88 02 345 disclosed. The height adjustment takes place from the Practice known work table according to this utility model by arranging blocks of different heights between the frame and the worktop. So that can different heights for the work table only for Manufacturing process of this work table can be obtained. A subsequent change in the height of the work table is therefore only to be carried out by a specialist.

In the work table according to DE-OS 39 20 771 there is a Height adjustment by changing the stand height. Here grip two parts of a tubular stand telescopic into each other and are at the desired height through a locking handle lockable. This height adjustment is cumbersome too handle and does not allow continuous Height adjustment.

From DE-GM 80 18 295 is a table for screen devices known, in which the worktop is divided into two and each plate part separately over arranged in the stands Gear is adjustable in height. The two Plate parts rest on two arms, which on their in the End of table supported by vertical columns that are telescopic into further vertical columns are inserted and in each case by a gear in the height is adjustable. Such an embodiment  has the disadvantage, however, that when the Table tops the nested vertical columns tilt and thereby under the height adjustment High friction forces arise.

The object of the invention is in one in which Generic term described the work table Training height adjustment so that it with a gear  which occurs on each side of the work table is arranged, and these gears built into the stand are. According to the invention, this object is achieved by that

• - Between the vertical profile bars Stand each a board-shaped intermediate piece is arranged, which with its longitudinal edges in the Height engages in grooves of the profile bars,
• - The worktop on the board-shaped intermediate pieces is attached directly or indirectly,
• - between the two vertical profile bars of each Stand a bridge firmly connected to this is arranged
• - between the bridge and the board-shaped intermediate part in a gearbox is inserted in the middle of the bridge.

This also has the advantage that the Gearbox is installed to save space and not a long one additional drive and transmission linkage is required.

In an advantageous embodiment of the invention, in the grooves of the profile bars have a U-shaped cross section, bar made of good sliding plastic used, in which the board-shaped intermediate piece with its longitudinal edges is slidably inserted. So that is even with a slight tilt, as with a uneven height adjustment of the worktop a jerk-free height adjustment can occur Worktop possible.

To the intermediate piece with little use of material if possible to be rigid in itself, this is double-walled and with longitudinal intermediate webs executed.  

In order to save space and functionally reliable construction the gearbox with its housing in a recess board-shaped spacers and the gear spindle with one end firmly inserted in the bridge. There is the Bridge made of a sheet metal strip, the end of which is angled and are attached to the profile bars, with in the middle of the Bridge a bulge like a pipe clamp is introduced and the bulge is a receptacle for one head located at one end of the gear spindle has the gear spindle both in the axial direction as well as in the direction of rotation.

The two front and are used to stiffen the frame rear vertical profile bars of the two stands on her upper end with two longitudinal profile bars and the two each form a vertical profile bars forming a stand their lower end through a common foot interconnected.

It is also advantageous to use the two board-shaped Intermediate pieces by two spaced apart To connect side members on which the Worktop is attached. This results in a safe one Support for the worktop.

The drawing illustrates an advantageous Embodiment of the invention, namely shows

Fig. 1 is a perspective view of the work table,

Fig. 2 shows the frame of the work table in exploded view,

Fig. 3 shows a stand of the work table and

Fig. 4 shows the stand of FIG. 3 in an exploded view.

From Fig. 1 the work table with its worktop ( 1 ), the two stands ( 2 ) with their feet ( 3 ), a body ( 4 ) suspended below the worktop ( 1 ) and an electrical connection ( 5 ) can be seen.

The worktop ( 1 ) is supported by a U-shaped frame, the two legs of which are formed by the stands ( 2 ) and the web by the two longitudinal profile bars ( 6 and 7 ). Each of the two stands ( 2 ) consists of two vertical profile bars ( 8 and 9 ) which are connected at their lower ends to each other by the foot ( 3 ) designed as a profile bar, the two front vertical profile bars ( 9 ) and the two rear vertical profile bars ( 8 ) are connected to each other at their upper end by one of the longitudinal profile bars ( 6 and 7 ). Between the vertical profile bars ( 8 and 9 ) a board-shaped intermediate piece ( 11 , 12 ) is inserted, which are connected at their upper end to the two longitudinal beams ( 13 , 14 ).

The board-shaped intermediate pieces ( 11 , 12 ) are slidably inserted with their longitudinal edges ( 25 ) in grooves ( 26 ) of the vertical profile bars ( 8 , 9 ), with the interposition of a profile strip ( 15 ) of U-shaped cross-section made of easily slidable plastic. By shifting the height of the board-shaped intermediate pieces, the height of the worktop ( 1 ) lying on the two longitudinal beams ( 13 , 14 ) and fastened thereon is adjusted.

The height of the board-shaped intermediate pieces ( 11 , 12 ) is carried out by a gear ( 16 ), the housing ( 17 ) of which is inserted into an opening ( 10 ) of the board-shaped intermediate pieces ( 11 , 12 ) and the spindle ( 18 ) with which on one of them End arranged head ( 19 ) in the axial direction and rotatably in the fixed between the vertical profile bars ( 8 , 9 ) is arranged bridge ( 20 ). The board-shaped intermediate pieces ( 11 , 12 ) and thus the worktop ( 1 ) are adjusted in height by actuating the gears ( 16 ).

The board-shaped intermediate piece ( 11 , 12 ) is double-walled and has longitudinal intermediate webs ( 21 ) and has web-shaped tapering on the longitudinal edges ( 13 ). These web-shaped tapers engage in the strips ( 15 ) in the manner of tongue and groove.

The bridge ( 20 ) is made of a sheet metal strip which is bent at right angles on its two narrow sides and is fastened to the vertical profile bars ( 8 , 9 ) with these folds ( 22 ). In the middle, the bridge ( 20 ) has an outward bulge ( 23 ) with which the bridge ( 20 ) encompasses the spindle ( 18 ). The pipe clamp-like bulge ( 23 ) has a recess ( 24 ) through which the toggle-like head ( 19 ) of the spindle ( 18 ) projects. Since the spindle ( 18 ) and thus the head ( 19 ) is pressed against the board-shaped intermediate piece ( 11 ), the spindle ( 18 ) is mounted in a rotationally fixed manner. The upper and lower edge of the recess ( 24 ) fix the head ( 19 ) and thus the spindle ( 18 ) in the axial direction.

Claims (7)

1. work table, in particular office table, the height-adjustable worktop is supported by a frame, the laterally arranged stands have at least two spaced-apart and vertical profile bars, characterized in that

• - Between the vertically extending profile bars ( 8 , 9 ) of the stands ( 2 ) a board-shaped intermediate piece ( 11 , 12 ) is arranged, which with its longitudinal edges ( 25 ) is adjustable in height in grooves ( 26 ) of the profile bars ( 8 , 9 ) intervenes,
• - The worktop ( 1 ) is directly or indirectly attached to the board-shaped intermediate pieces ( 11 , 12 ),
• - A bridge ( 20 ) fixedly connected to these is arranged between the two vertical profile bars ( 8 , 9 ) of each stand ( 2 ),
• - A gear ( 16 ) is inserted between the bridge ( 20 ) and the board-shaped intermediate part ( 11 , 12 ) in the middle of the bridge ( 20 ).

2. Work table according to claim 1, characterized in that in the grooves ( 26 ) of the profiled bars ( 8 , 9 ) a cross-sectionally U-shaped, made of easily slidable plastic strip ( 15 ) is inserted, into which the board-shaped intermediate piece ( 11 , 12 ) is slidably inserted with its longitudinal edges ( 25 ). 3. Work table according to claim 1 or 2, characterized in that the board-shaped intermediate pieces ( 11 , 12 ) are double-walled and with longitudinal intermediate webs ( 21 ). 4. Work table according to one of the preceding claims, characterized in that the gear ( 16 ) with its housing ( 17 ) in a recess ( 10 ) of the board-shaped intermediate pieces ( 11 , 12 ) and the gear spindle ( 18 ) with one end in the bridge are firmly used. 5. Work table according to one of the preceding claims, characterized in that the bridge ( 20 ) consists of a sheet metal strip, the ends ( 22 ) of which are angled and fastened to the profiled bars ( 8 , 9 ), in the middle of a bulge ( 23 ) the type of pipe clamp is introduced, and the bulge ( 23 ) has a receptacle ( 24 ) for a head ( 19 ) arranged at one end of the gear spindle ( 18 ), which fixes the gear spindle ( 18 ) both in the axial direction and in the direction of rotation. 6. Work table according to one of the preceding claims, characterized in that the two front and rear vertical profile bars ( 8 , 9 ) of the stand ( 2 ) at their upper end with two longitudinal profile bars ( 6 , 7 ) and the two each have a stand ( 2nd ) forming vertical profile bars ( 8 , 9 ) are connected to each other at their lower end by a common foot ( 3 ). 7. Working table according to one of the preceding claims, characterized in that the two board-shaped intermediate pieces ( 11 , 12 ) are connected to one another by two spaced-apart longitudinal beams ( 13 , 14 ) on which the worktop ( 1 ) is fastened to rest.