Patent ID: 8757580
Filing Date: 2014-06-24
Classification: A47C,B60N,B61C,B61D

Abstract:
1. A height-adjustable pedestal comprising: a guiding device having a substantially vertical orientation, said guiding device includes a vertical guide rail, a height-adjustable foot platform having a spring device that provides a spring force according to a corresponding spring characteristic, the spring device including a helical spring orientated vertically parallel and adjacent to a side of said vertical guide rail, and a lever mechanism that is interconnected between the spring device and the platform such that the spring force is transferred by the lever mechanism to the platform in a manner so as to provide a lifting force that counteracts the weight force of the platform in order to facilitate the height-adjustment of the platform where the lifting force is greater than the weight force by a substantially constant amount, wherein the lever mechanism is configured such that it at least partially compensates for a variation of the spring force that occurs according to the spring characteristic; a vertical retaining plate connected to the guiding device such that the vertical retaining plate is between the guiding device and the spring device; a second spring device; and a second lever mechanism, and wherein the guiding device includes a second vertical guide rail, each rail having a guiding channel in sliding engagement of the at least one slide carriage, the lever mechanism and the second lever mechanism each includes