Patent ID: 8297641

Claim:
A seat supporting assembly for supporting a seat, said seat supporting assembly comprising: a base, said base including a substantially elongated base guiding member; a seat support for supporting the seat; a seat support-to-base linking member, said seat support-to-base linking member being operatively coupled to said seat support and to said base guiding member with said seat support being tiltable relative to said base and said seat support-to-base linking member being substantially longitudinally movable relative to said base guiding member; a substantially elongated tilting member defining a tilting member first end section, a substantially longitudinally opposed tilting member second end section and a tilting member intermediate section extending therebetween, said tilting member intermediate section defining a guiding groove extending generally longitudinally relative to said tilting member, said tilting member first end section being pivotally attached to said seat support in a substantially spaced apart relationship relative to seat support-to-base linking member, said tilting member second end section being pivotally attached to said base; and an actuating assembly operatively coupled to said base and to said tilting member for moving said seat supporting assembly between an upright configuration and a tilted configuration, a seat support-to-base angle between said seat support and said base being larger in said tilted configuration than in said upright configuration, said actuating assembly including a motion transmitting member mounted to said guiding groove so as to be substantially slidably movable relative thereto, said motion transmitting member being movable relative to said base along a predetermined path; wherein moving said motion transmitting member along said predetermined path slides said motion transmitting member relative to said guiding groove, which causes said seat supporting assembly to move between said tilted and upright configurations by pivoting said tilting member relative to said seat support and said base and substantially simultaneously moving said seat support-to-base linking member substantially longitudinally relative to said base guiding member.