Patent ID: 7575249
Filing Date: 2009-08-18
Classification: B60S,Y10T

Abstract:
1. A height adjustable support comprising a stationary outer support tube, an inner support tube arranged in a longitudinally displaceable manner in the outer support tube, a gearbox output shaft mounted for rotational movement in the outer support tube, a bevel gear fixed to the gearbox output shaft, a spindle drive means engaged with the bevel gear for displacing the inner support tube within the outer support tube, a gearwheel fixed to the gearbox output shaft and engaging a pinion of a drive motor means, for driving the gearwheel, the gearbox output shaft, the bevel gear and the spindle drive means for moving the inner support tube, and a switch off device which deactivates the drive motor means when an end of the inner support tube abuts a surface, wherein the pinion has a projecting bearing journal by means of which it is mounted in a collared bushing which is seated in a wall of the outer support tube.