Table frame for a height-adjustable table and height-adjustable table with such a table frame

Abstract

A table frame (2) for a height-adjustable table (1) has: two telescopic columns (4, 4′) each having an outer column (5, 5′), an inner column (6, 6′) which can be axially displaced with respect to the outer column (5, 5′), and a drive device (7, 7′) which is arranged within the inner column (6, 6′), wherein the drive device (7, 7′) has a first drive component (9) which is attached to the inner column (6, 6′), and a second drive component (10) which is attached to the outer column (5, 5′). The table frame (2) has a band-type synchronization device (13) which is connected at one end to the outer column (5′) of the second telescopic column (4′), wherein a relative displacement between the inner column (6) and the outer column (5) of the first telescopic column (4) results in a synchronous relative displacement between the inner column (6′) and the outer column (5′) of the second telescopic column (4′) by means of the synchronization device (13). The synchronization device (13) is connected at the other end to the second drive component (10) of the drive device (7) of the first telescopic column (4).

1 . A table frame for a height-adjustable table, comprising:
 at least two telescopic columns, wherein a first telescopic column and a second telescopic column respectively comprise:   an outer column,   an inner column which is arranged so as to be axially displaceable in a first direction with respect to the outer column, wherein the telescopic columns are configured such that the inner column can be extended out of the outer column in the first direction towards a table top of the table, and   a drive device which is arranged at least partially within the inner column, wherein the drive device has a first drive component which is attached to the inner column in a positionally stable manner in the first direction relative to the inner column, and a second drive component which is attached to the outer column in a positionally stable manner in the first direction relative to the outer column, and the first drive component and the second drive component can be moved with respect to one another in the first direction,   wherein the table frame further comprises   a first band-type synchronization device which is connected in the region of one of its ends to the outer column of the second telescopic column, wherein the table frame is configured such that a relative displacement between the inner column and the outer column of the first telescopic column results in a synchronous relative displacement between the inner column and the outer column of the second telescopic column by means of the first band-type synchronization device,   characterized in that   the first band-type synchronization device is connected in the region of its other end to the second drive component of the drive device of the first telescopic column.   
     
     
         2 . The table frame according to  claim 1 , wherein
 the first telescopic column has a first deflection roller and a second deflection roller, and   the second telescopic column has a third deflection roller,   wherein the first deflection roller and the second deflection roller are connected in a positionally stable manner in the first direction to the inner column of the first telescopic column, the third deflection roller is connected in a positionally stable manner in the first direction to the inner column of the second telescopic column, and   the first band-like synchronization device is configured to be deflected by the first deflection roller and the second deflection roller of the first telescopic column and by the third deflection roller of the second telescopic column.   
     
     
         3 . The table frame according to  claim 1 , wherein
 the table frame has a second band-type synchronization device which is connected in the region of its first end to the second drive component of the drive device of the second telescopic column, and it is connected in the region of the second end to the outer column of the first telescopic column, wherein the table frame is configured such that a relative displacement between the inner column and the outer column of the second telescopic column results in a synchronous relative displacement between the inner column and the outer column of the first telescopic column by means of the second band-type synchronization device.   
     
     
         4 . The table frame according to  claim 3 , wherein
 the second telescopic column has a fourth deflection roller and a fifth deflection roller, and   the first telescopic column has a sixth deflection roller,   wherein the fourth deflection roller and the fifth deflection roller are connected in a positionally stable manner in the first direction to the inner column of the second telescopic column,   the sixth deflection roller is connected in a positionally stable manner in the first direction to the inner column of the first telescopic column, and   the second synchronization device is configured to be deflected by the fourth deflection roller and the fifth deflection roller of the second telescopic column and by the sixth deflection roller of the first telescopic column.   
     
     
         5 . The table frame according to  claim 2 or 4 , wherein
 at least one of the first telescopic column and the second telescopic column respectively comprises   a separate roller fastening element which is attached to the inner column in the region of an end of the inner column opposite to the first direction and which is configured to fasten the first deflection roller and a fourth deflection roller rotatably to the inner column.   
     
     
         6 . The table frame according to  claim 5 , wherein
 the roller fastening element has laterally protruding projections,   the inner column has openings or recesses from its inner surface in the region of the end of the inner column opposite to the first direction, and   the projections of the roller fastening element and the openings or recesses of the inner column are configured such that the projections engage in the recesses or openings and fix the roller fastening element in any direction parallel to the first direction with respect to the inner column.   
     
     
         7 . The table frame according to  claim 5 , wherein
 the roller fastening element is produced from a plastic.   
     
     
         8 . The table frame according to  claim 2 , wherein
 the first telescopic column and the second telescopic column respectively have a drive component fastening element by means of which the first drive component of the drive device can be attached to the inner column, wherein the drive component fastening element has a support device which is configured to rotatably support at least one of the second deflection roller and a sixth deflection roller or the third deflection roller and a fifth deflection roller.   
     
     
         9 . The table frame according to  claim 8 , wherein
 the drive component fastening element has laterally protruding projections,   the inner column has openings or recesses from its inner surface in the region of the end of the inner column in the first direction, and   the projections of the drive component fastening element and the openings or recesses of the inner column are configured such that the projections engage in the recesses or openings and fix the drive component fastening element in any direction parallel to the first direction.   
     
     
         10 . The table frame according to  claim 1 , wherein
 the drive device has a gas spring.   
     
     
         11 . The table frame according to  claim 10 , wherein the gas spring comprises a locking device which is configured to lock the gas spring in a position within its stroke distance. 
     
     
         12 . The table frame according to  claim 8 , wherein
 the drive component fastening element has a release device which is configured to release a locking device a gas spring.   
     
     
         13 . The table frame according to  claim 3 , wherein
 the telescopic column has a first band fastening element which is configured to connect the first band-type synchronization device and second band-type synchronization device directly to the second drive component of the respective drive device.   
     
     
         14 . The table frame according to  claim 1 , wherein
 at least one of the first band-type synchronization device and the second band-type synchronization device has two band-type sections,   a first band-type section can be connected to the outer column of the first telescopic column and the second telescopic column,   a second band-type section can be connected to the second drive component of the drive device of the first telescopic column and the second telescopic column, and   the first band-type synchronization device is configured to be formed by connecting the first band-type section and the second band-type section by means of pressing a sleeve.   
     
     
         15 . A height-adjustable table with a table frame according to  claim 1 . 
     
     
         16 . The table frame according to  claim 2 , wherein
 the table frame has a second band-type synchronization device which is connected in the region of its first end to the second drive component of the drive device of the second telescopic column, and it is connected in the region of the second end to the outer column of the first telescopic column, wherein the table frame is configured such that a relative displacement between the inner column and the outer column of the second telescopic column results in a synchronous relative displacement between the inner column and the outer column of the first telescopic column by means of the second band-type synchronization device.   
     
     
         17 . The table frame according to  claim 4 , wherein
 at least one of the first telescopic column and the second telescopic column respectively comprises   a separate roller fastening element which is attached to the inner column in the region of an end of the inner column opposite to the first direction and which is configured to fasten the first deflection roller and the fourth deflection roller rotatably to the inner column.   
     
     
         18 . The table frame according to  claim 6 , wherein
 the roller fastening element is produced from a plastic.   
     
     
         19 . The table frame according to  claim 4 , wherein
 the first telescopic column and the second telescopic column respectively have a drive component fastening element by means of which the first drive component of the drive device can be attached to the inner column, wherein the drive component fastening element has a support device which is configured to rotatably support at least one of the second deflection roller and sixth deflection roller or the third deflection roller and fifth deflection roller.   
     
     
         20 . The table frame according to  claim 2 , wherein
 the drive device has a gas spring.