| 摘要 |
An automotive seat reclining device includes a first rotation member connected to one of a seat back and a seat cushion and having an internal gear and a bearing sleeve coaxial with the internal gear, a second rotation member connected to the other of the seat back and the seat cushion and having an external gear and a bearing bore coaxial with the external gear, a pair of wedge members disposed in a circular eccentric space between the bearing sleeve and the bearing bore and a drive member inserted in the eccentric space to move the mesh of the internal and external gears by pushing the wedge members and rotate the second rotation member relative to the first rotation member. Each of the wedge members has an inner circumferential surface formed with a recessed section and two contact sections for contact with an outer circumferential surface of the bearing sleeve.
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