Patent ID: 9205765
Filing Date: 2015-12-08
Classification: B60N

Abstract:
1. A recliner for a vehicle seat, comprising: an external gear bracket formed with a through-hole to which a bush is fitted and coupled, the external gear bracket having an external gear; an internal gear bracket which has an internal gear engaging with the external gear and is formed with a central protrusion protruding toward the external gear bracket, a shaft passing through the central protrusion; a socket provided with a socket protrusion to which the shaft is spline-coupled, and provided with an operation protrusion which protrudes to surround a portion of an outer peripheral surface of the central protrusion, wherein the socket protrusion is formed toward the internal gear bracket; a cam sleeve configured to surround a portion of the remainder of the outer peripheral surface of the central protrusion; and a pair of wedge blocks configured to surround a portion of the outer peripheral surface of the central protrusion in a state in which one end portions of the respective wedge blocks face each other and the other end portions thereof are pressed by the operation protrusion, wherein the cam sleeve comprises protrusion portions protruding from both end portions thereof toward the wedge blocks, wherein the pair of wedge blocks comprises groove portions in which the protrusion portions are moved on inner peripheral surfaces adjacent to the other respective end portions, and wherein, when a pressing force by the operation protrusion is released, a predetermined gap is each formed between lower side surfaces of the groove portions and lower side surfaces of the protrusion portions of the cam sleeve.