Patent ID: 7455270

Claim:
A mechanism for mounting a support for movement relative to a base, said mechanism having a three bar linkage, said three bar linkage comprising a first link, a second link and a third link, each of said links having a first end and a second end, respectively, said three bar linkage further comprising a first pivot means, a second pivot means and a third pivot means, wherein a first pivot axis, a second pivot axis and a third pivot axis of said first, second and third pivot means, respectively, are parallel to one another, said first end of said first link attached by said first pivot means to said first end of said second link, said second end of said first link attached by said second pivot means to said third link, said second end of said second link attached by said third pivot means to said third link, said third link operatively arranged to be attached to said support, said mechanism further comprising: a mounting member operatively arranged to be attached to said base, said mounting member having a locking surface and a pair of parallel spaced apart walls operatively arranged to extend away from said base, each of said walls having a slot, wherein said slots are parallel to said locking surface, and said slots are operatively arranged to slidingly and pivotally attach to at least one of said links by at least one of said pivot means to permit movement of said three bar linkage about at least one of said pivot axis and to permit transverse movement of said three bar linkage parallel to said slots.