Patent ID: 6932431

Claim:
A tiltable chair comprising a chair seat; a chair back; and a control means for controlling the tilt of the chair back relative to the chair seat, said control means comprising a control body mounted to the underside of said chair seat, a pivot body pivotably mounted beneath said control body to have a range of pivoting motion, connecting means for operatively connecting said pivot body to said chair back, and a spring operatively disposed between said control body and said pivot body; whereby force exerted backwardly against said chair back is transmitted through said connecting means to said pivot body, such that said pivot body pivots, said control means further comprising limiting means for limiting the range of pivoting motion of said pivot body, such that pivoting motion of said pivot body is limited by said spring and by said limiting means, thereby limiting the tilting movement of said chair back, and wherein said limiting means comprises an additional limiting member having a front stop surface and a back stop surface, and wherein said pivot body further comprises a front stop mating surface and a back stop mating surface, whereby when said chair back is in its forwardmost position said front stop mating surface of said pivot body engages said front stop surface of said limiting member, and when said chair back is in its backwardmost position said back stop mating surface of said pivot body engages said back stop surface of said limiting member; wherein said front stop surface and said back stop surface are each disposed rearwardly of said spring.