| 摘要 |
A reclining mechanism for a vehicle seat composed of a first arm member for attachment to a frame structure of a seat cushion or a back rest of the vehicle seat; a second arm member for attachment to a frame structure of the other of the back rest or the seat cushion, the second arm member being connected with the first arm member by means of a hinge pin for relative rotation about the hinge pin and having a pair of diametrically opposed semi-circular ratchet portions concentric with the hinge pin; a pair of diametrically opposed slide pawls slidably coupled with the first arm member in a radial direction with respect to the hinge pin to be moved toward and away from the ratchet portions of the second arm member; and a cam element slidably coupled with the first arm member in a lateral direction perpendicular to the slide pawls and disposed between the slide pawls, the cam element being operatively connected with the hinge pin to be moved by rotation of the hinge pin in the lateral direction for engaging the slide pawls with the ratchet portions of the second arm member and for disengaging the slide pawls from the ratchet portions of the second arm member, wherein the hinge pin is loaded by a torsion spring assembled thereon to bias the cam element in the lateral direction for maintaining the slide pawls in engagement with the ratchet portions of the second arm member.
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