Patent ID: 7290741
Filing Date: 2007-11-06
Classification: A47B

Abstract:
1. In a self-adjusting furniture support for use with a piece of furniture having a bottom base surface, said support including in combination: shaft means for mounting on a base surface of said piece of furniture extending in a vertical direction, an upper member rotatably mounted on said shaft means and having a downwardly facing inclined ramp surface, a lower foot member mounted on said shaft means and having an upwardly facing inclined ramp surface slidably engaging said ramp surface on said upper member, and coil spring means mounted in coaxial relationship with said shaft means in a compressed state between said upper and lower members for exerting a force in a direction to push said members apart, an improvement comprising, said shaft means including cam means extending radially therefrom and, said upper member including complimentary cam means thereon for engaging said cam means extending radially from said shaft means to limit the rotational movement of said upper member relative said shaft to less than about half of one rotation.