Arrangement for a desk comprising a desk-top which can be raised and lowered
First Claim
Patent Images
1. An improved height adjustable desk comprising:
- a desk top;
at least two telescopic legs for raising and lowering said top with respect to a reference level, said telescopic legs having inner and outer parts;
a hydraulic cylinder including an associated piston extending inside each of said telescopic legs, said cylinder being fixed to the top and said piston being fixed to said outer part of said telescopic leg, said inner part being detachably connected to a first bar member releasably attached to the underside of the desk top;
means for actuating the hydraulic cylinders; and
, wherein said inner and outer parts of said telescopic legs are made of closed profiles, an outer closed profile having a cross-section including a central substantially rectangular portion and two substantially rectangular side portions of reduced dimensions on each side of said central portion, and inner closed profile having a cross-section forming a corresponding central substantially rectangular portion and side portions on each side of said central portion, the inner walls of said central and side portions of said outer profile and outer walls of said corresponding central and side portions of said inner profile forming longitudinally extending mutually-coacting guiding surfaces counteracting jamming when said inner and outer parts are longitudinally movable with respect to each other for height adjustment of said desk.
0 Assignments
0 Petitions
Accused Products
Abstract
An adjustable switchboard desk has a top which can be raised and lowered by at least two telescopic legs. In each telescopic leg a hydraulic cylinder and its associated piston are arranged. The cylinder is fixed to the desk-top and the piston is fixed to an outer part of the telescopic leg, or vice versa. The inner and outer parts of the respective telescopic legs are made of closed profile with longitudinally extending, mutually co-acting guide surfaces.
-
Citations
4 Claims
-
1. An improved height adjustable desk comprising:
-
a desk top; at least two telescopic legs for raising and lowering said top with respect to a reference level, said telescopic legs having inner and outer parts; a hydraulic cylinder including an associated piston extending inside each of said telescopic legs, said cylinder being fixed to the top and said piston being fixed to said outer part of said telescopic leg, said inner part being detachably connected to a first bar member releasably attached to the underside of the desk top; means for actuating the hydraulic cylinders; and
, wherein said inner and outer parts of said telescopic legs are made of closed profiles, an outer closed profile having a cross-section including a central substantially rectangular portion and two substantially rectangular side portions of reduced dimensions on each side of said central portion, and inner closed profile having a cross-section forming a corresponding central substantially rectangular portion and side portions on each side of said central portion, the inner walls of said central and side portions of said outer profile and outer walls of said corresponding central and side portions of said inner profile forming longitudinally extending mutually-coacting guiding surfaces counteracting jamming when said inner and outer parts are longitudinally movable with respect to each other for height adjustment of said desk. - View Dependent Claims (2, 3, 4)
-
Specification