RECLINER FOR VEHICLE SEAT

摘要

Disclosed herein is a recliner for a vehicle seat including an external gear bracket having an external gear, an internal gear bracket which has an internal gear and is formed with a central protrusion, a socket which is formed with a socket protrusion and has an operation protrusion, and a pair of wedge blocks configured to surround the central protrusion. The socket includes a lubrication pocket for supplying a lubricating substance to the central protrusion of the internal gear bracket or the bush, and thus may improve durability of each component by constantly supplying the lubricating substance between the central protrusion of the internal gear bracket and the operation protrusion of the socket, between the operation protrusion of the socket and the bush, and between the bush and the wedge blocks.

主权项

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 corresponding to the external gear and is formed with a central protrusion protruding toward the external gear bracket, the central protrusion having a fitting hole through which a shaft passes; a socket formed with a socket protrusion having a coupling hole through which the shaft is spline-coupled to the socket, the socket protrusion is formed toward the internal gear bracket, the socket having an operation protrusion which protrudes to surround a portion of an 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 wedge blocks face each other, wherein a first lubrication pocket is provided on an inner peripheral surface of the operation protrusion so as to supply a lubricating substance to the outer peripheral surface of the central protrusion.