Patent ID: 6398305
Filing Date: 2002-06-04
Classification: A47C,Y10S

Abstract:
A chair with adjustable seating angle, comprising:a pair of laterally spaced vertical side walls; ground contacting support means mounted to the underside of said vertical side walls; an elongate supporting cross-member extending between and fixedly mounted to said side walls below seat level; an integral chair back/seat assembly extending laterally between said vertical side walls; means for pivotally mounting the front of said seat portion to said side walls; pneumatic cylinder means connected centrally to said cross-member at a first end of said pneumatic cylinder means, and connected at the second end thereof to the underside of the seat portion by pivotal connection means, for lowering of the seat portion with a rearward tilting of the back portion in response to the weight of a user, and raising of the seat portion with forward tilting of the back portion when the weight of a user is removed; and manually operable control means for actuating said pneumatic cylinder means when adjusting the inclination of said assembly and for deactuating the pneumatic cylinder means to set a desired inclination of the assembly.