Patent attributes
A pivoting support assembly with a selective position locking capability may include a base, a first support arm movable with respect to the base, and a first movable joint movably mounting the first support arm to the base that includes a first component and a second component. A first position locking assembly may lock a selected position of the support arm with respect to the base, and may include a drum structure of one of the first and second components of the first movable joint and a shoe structure of another one of the first and second components of the first movable joint. The shoe structure may be movable to selectively move outwardly against the drum structure to resist rotation of the drum structure with respect to the shoe structure and thereby resist movement of the first support arm with respect to the base.