| 摘要 |
PROBLEM TO BE SOLVED: To provide a chair capable of easily adjusting intensity of reaction for returning a backward tilted backrest to a standing state.SOLUTION: A chair relating to the present invention includes a synchro tilt mechanism 13 that interlocks a seat 5 with a backward tilting motion of a backrest 11, and a backward tilting reaction generation mechanism 55 that generates reaction for returning the backward tilted backrest 11 to a standing state. The synchro tilt mechanism 13 is a mechanism in which the seat ascends in synchronization with the backward tilting of the backrest. The backward tilting reaction generation mechanism 55 comprises a reaction adjustment mechanism 79 capable of adjusting intensity of the reaction. |
