| 摘要 |
<P>PROBLEM TO BE SOLVED: To facilitate assembling work by reducing the number of parts and weld parts. <P>SOLUTION: The chair includes a frame 5 supported on legs 10; a seat 1 supported on the frame 5 and allowing a rear part 1a to be lifted in comparison with a front part 1b; a backward tiltable backrest 2 supported on the frame 5; and a body weight sensing part 3 provided at the backrest 2 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 2 while allowing the backrest 2 to rise forward, interlocked with the descent of the rear part 1a of the seat 1. At least part of the front part 1b of the frame 5 is formed as a laterally extended front side straight line part 6, and the front part 1b of the seat 1 is mounted in a swingable manner to the front side straight line part 6 through a front side bearing mechanism 7. At least part of the rear part 1a of the frame 5 is formed as a laterally extended rear side straight line part 8, and the backrest 2 is mounted in a backward tiltable manner to the rear side straight line part 8 through a rear side bearing mechanism 9. <P>COPYRIGHT: (C)2013,JPO&INPIT |
