초록 ▼

A chair with a backrest is arranged so that the seat can be shifted forwardly to a rest position upon a rearward inclination of the backrest. The front end of the seat is supported pivotably on a support base, and the seat is movable forwardly and rearwardly. A balancing member is provided below the

A chair with a backrest is arranged so that the seat can be shifted forwardly to a rest position upon a rearward inclination of the backrest. The front end of the seat is supported pivotably on a support base, and the seat is movable forwardly and rearwardly. A balancing member is provided below the seat, and the support base supports a fulcrum of the balancing member set between a front and rear point of action of the balancing member. A backrest is provided on the rear end of the balancing member, and a rear part of the seat is supported on the rear point of action of the balancing member through seat receiving means. An upward movement of the front point of action of the balancing member is translated by motion translating means to a forward movement of the seat.

대표청구항 ▼

A chair which comprises: a support base; a seat which is movable forwardly and rearwardly, said seat comprising a front part and a rear part, wherein the front part is pivotably supported by the support base; a balancing member positioned below the seat so as to extend longitudinally, said balancing

A chair which comprises: a support base; a seat which is movable forwardly and rearwardly, said seat comprising a front part and a rear part, wherein the front part is pivotably supported by the support base; a balancing member positioned below the seat so as to extend longitudinally, said balancing member having a front portion, a rear portion, and a fulcrum set between the front portion and the rear portion so that said front portion is movable upwardly and downwardly, said balancing member being supported by said support base at the fulcrum; a backrest provided on the rear portion of the balancing member; seat receiving means for pivotally connecting the rear part of said seat to the rear portion of said balancing member; and motion translating means for operably connecting the front portion of said balancing member to the front part of said seat, said motion translating means translating an upward movement of said front portion of said balancing member to a forward movement of said seat.