Tilting mechanism for a chair and a chair having the same

#The present invention relates to a chair which comprises an operating lever, a cable and a tilting device for locking a seat or a backrest at an optional tilting angle and releasing it.

#A conventional chair in which a backrest is locked at an optional stepwise angle usually has a tilting device in which a pin which projects on an operating lever rotatably mounted to a seat or an engagement lever related therewith is engaged with or disengaged from teeth formed on the outer circumferential surface of a sector gear which turns together with the backrest.

#However, in the chair, the operating lever is located on the rear side. Especially when an armrest is provided, it is difficult to operate the operating lever since an arm of a person must be turned outward of the armrest.

#The features and advantages of the invention will become more apparent from the following description with respect to embodiments as shown in appended drawings wherein:

#FIG. 1 is a front elevational view of a chair according to the present invention;

#FIG. 2 is a side elevational view thereof;

#FIG. 1 is a front elevational view of a chair according to the present invention, and FIG. 2 is a side elevational view of the same. The chair has a leg 3 having five feet 2 radially. A telescopic column 4 which has a gas spring (not shown) stands on the center of the leg 3, and the rear end of a base 5 is fixed to the upper end of the column 4.

#The base 4 opens at the bottom and is formed as a hollow box, and the bottom is covered with a detachable cover 6.

#In the base 5, there are force promoting return means for returning a backrest 7 and a seat 8 in FIG. 13 and switching means for promoting force in FIG. 15, which will be described later.