| 摘要 |
An adjustment means for variable height adjustment of hydraulically or pneumatically operable supports, e.g. legs on tables, chairs, beds etc., adjustment means for simultaneously raising and lowering all supports and for separately adjusting each of said supports to suit the contour of the floor surface or similar foundation comprised of pressure chambers (13) in the housing (11) of the adjustment means (10), the number corresponding to the number of supports, each pressure chamber having a piston (14), which by way of an adjusting screw (15) cooperates with a driving nut (16), which is unrotatably but axially displaceably arranged in the housing. The driving nut is displaced by means of a threaded spindle (17) which is rotatably but undisplaceably mounted in the housing. |
