Patent ID: 7014157
Filing Date: 2006-03-21
Classification: F16M

Abstract:
1. An adjustable support for an electronic device comprising: a first endcap adapted to be mounted to a support structure; a second endcap; a forearm extension having first and second ends, said first end pivotally coupled to said second endcap; a first elongated arm having a first and second end respectively pivotally connected to said first and second endcaps so that said arm may be vertically moved with respect to said support structure; a friction cylinder comprising a hollow tubular member having first and second ends, an elongated shaft having first and second ends, said shaft slidably received within said tubular member, and a friction bushing coupled to said tubular member, wherein said friction bushing is a fully-split friction bushing comprising two mating halves, each half having a mating surface, said mating surfaces having a central longitudinal groove whereby, when said mating halves are in alignment, said longitudinal grooves form a central longitudinal passage adapted to receive said shaft, whereby, when pressure is applied to said friction bushing, at least one of said mating surfaces frictionally engages said shaft along at least a portion of at least one of said grooves to retard sliding movement of said shaft within said tubular member, said second end of said shaft and said second end of said tubular member pivotally attached to one of said first endcap and said arm, whereby said friction cylinder functions as a counterbalance to the weight of an electronic device.