Patent ID: 6224026
Filing Date: 2001-05-01
Classification: A61B,F16M

Abstract:
A system for supporting a user's arm, comprising:an armrest for the user's arm; anda horizontally movable, armrest suspending and supporting structure comprising:a vertically movable member through which the armrest is suspended;a return-force producing assembly connected to the vertically movable member and comprising a resilient member through which an upward pulling force is applied to said vertically movable member; anda movement-resisting friction assembly connected to the vertically movable member and through which a friction force is applied to said vertically movable member;wherein the friction force is smaller than the upward pulling force but has an amplitude sufficient to add to the upward pulling force to counterbalance the weight of the user's arm within a given range of vertical arm positions and support the user's arm in a floatation-like mode within said given range of vertical ann positions.