Automobile seat angle adjuster

Abstract

An automobile seat angle adjuster comprises a gear cover (1), a gear bowl (2), a small gear sheet drive mechanism (4) and an edge covering ring (5). The automobile seat angle adjuster is characterized in that each small gear sheet (3) is of a two-level thickness stepped structure in the thickness direction, grooves (34) are formed due to the thickness level differences, and hanging lug holes (32) are formed in the thin walls of the small gear sheets (3); a cam plate (41) is further provided with protruding parts extending radially and hanging lugs (412) are arranged on the protruding parts; in a locking state, stop protrusions (413) of the cam plate abut against two bottom edges (33) of the small gear sheets; in the unlocking stroke, the hanging lugs (412) move along the hole walls in the hanging lug holes (32) to drive the small gear sheets to be displaced in the direction of a center shaft (42), and teeth of the small gear sheets are separated from a gear ring of the gear bowl. By the adoption of the automobile seat angle adjuster, the purposes of continuous uniformity, reliability and the like of motions of the small gear sheets are achieved, unlocking operation is convenient and stable, gaps of a product structure are small, the size is small, assembling operation is convenient, and production cost is low.

Description

technical field [0001] The invention belongs to the technical field of vehicle seat accessories, and in particular relates to a vehicle seat recliner which is installed between the backrest of the seat and the seat and can properly adjust the angle between the backrest and the seat. Background technique [0002] The car seat recliner is used to change the forward and backward angle of the backrest. Chinese Patent Publication No.: CN 101875321A, discloses a car seat recliner with advanced structure, including tooth cover, tooth bowl, pinion, pinion driving mechanism, cam plate and wrapping ring, through the central shaft Force is applied to the cam plate, and then the cam plate acts on a group of small toothed plates, so that the small toothed plates are separated from the toothed bowl to realize the adjustment of the seat back. The design of the recliner with the above structure still has the following disadvantages. First, the thickness of the small tooth plate and the cam...

AI Technical Summary

Problems solved by technology

[0005] In the above structure, since the radially extending protruding part of the cam plate moves against the thin wall of the small tooth plate, at the same time, the columnar lug moves in the hole of the lug, so that the small tooth plate moves in the locking and unlocking strokes. It is always in a continuous restrained state, which solves the problems of easy loosening and unstable control of the small gear, and the thickness of the cam plate is thinner than that of the small gear, making the product lighter and more compact and precise

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