| 摘要 |
The invention relates to an inclination device. An operation part (34) is connected to a handle (31) for manual operation via an operation shaft (30). The operation part together pushes a spring part and wedge parts (35A, 35B) that are embedded in an eccentric space (13) of a gear mechanism including an outer gear (32) and an inner gear (33), thereby changing an embedding position between the outer gear and the inner gear and adjusting an installation angle of a second support (3) relative to a first support (2). The first support is provided with multiple stop holes (23a). The end portion of the operation shaft and a clamping recess (31a) of the handle are clamped in a clearance fit with a rotation direction. The operation shaft is fixedly equipped with a locking part (24), embedded into the stop holes, of a to-be-clamped portion (24a). The handle is equipped with a cam surface (31d) enabling the to-be-clamped portion of the locking part to be pulled out of the stop holes. Therefore, the device, with a simple structure and low cost, can conveniently prevent a backrest from inclining backward and displacing. |
