| 摘要 |
<P>PROBLEM TO BE SOLVED: To prevent the occurrence of a friction sound by smoothly swinging a seat and a backrest. <P>SOLUTION: The chair includes the seat 1 with a rear part 1a liftable compared to a front part 1b; the backward tiltable backrest; a body weight sensing part 3 provided at the backrest and supporting the rear part 1a of the seat 1 from below to lift the rear part 1a of the seat 1, interlocked with the backward tilting of the backrest while allowing the backrest to rise forward, interlocked with the descent of the rear part 1a of the seat 1; and a rotation body 4 provided between the rear part 1a of the seat 1 and the body weight sensing part 3 to transmit force while rotating. <P>COPYRIGHT: (C)2013,JPO&INPIT |
