Built-in inversion-stopping self-locking device of angle adjuster

Abstract

The invention discloses a built-in inversion-stopping self-locking device of an angle adjuster, comprising a clinching spring (1), an internal spline shaft (2), a cuneatic arch (3), an internal toothed plate (4) and a tension spring (03). The invention adopts the following technical scheme: the clinching spring is arranged on the outer wall of a central axle of the internal toothed plate; the principle that the diameter of the clinching spring is expanded when the clinching spring is stressed opposite to the winding direction and the diameter is contracted when the clinching spring is stressed in the winding direction is adopted; when a convex plate of the internal spline shaft touches a horizontal arm of the clinching spring in the forward angle of the clinching spring, the clinching spring loosens the outer wall of the central axle, and when the cuneatic arch touches the horizontal arm of the clinching spring in the backward angle of the clinching spring, the clinching spring enclasps and locks the outer wall of the central axle, thus overcoming the defects of complex structure, high cost and extra occupation of the inside space in the prior art. The built-in inversion-stopping self-locking device ensures inversion-stopping self-locking of the angle adjuster to achieve the aims of simple and reliable structure, low cost and no extra occupation of the inside space.

Description

technical field [0001] The invention relates to a recliner for a car seat, in particular to a built-in anti-reverse self-locking device arranged inside the recliner for controlling the angle change of the recliner due to the swaying of the car. Background technique [0002] Car seat recliner, according to the principle of parallel shaft "one-tooth difference" planetary gear reducer, the angle adjustment motor or manual rotation drives the external gear plate to mesh with the internal gear plate for cycloidal motion to obtain a large reduction ratio, through the internal gear The included angle between the plate and the external gear plate is changed to realize the angle adjustment of the seat back and the seat cushion. [0003] The shaking of the car when driving will cause the external gear plate of the recliner to appear a self-propelled phenomenon of relative displacement with the internal gear plate, which will cause the elevation angle of the seat back to change; The s...

AI Technical Summary

Problems solved by technology

The existing technology adopts a self-locking device for anti-reversal angle that is composed of a base, a torsion spring, a splined push ring, and a turntable connection outside the recliner to prevent the angle of the recliner from changing due to the shaking of the car; that is, By rotating the spline shaft at the input end, the recliner can adjust the angle, and the outer gear plate and the inner gear plate at the output end are shaken from the outside, and the recliner is self-locking; due to the complex structure of the device, the volume is large, the cost is high, and Attached to the outside of the recliner, it must occupy additional interior space of the carriage. Therefore, the existing technology has the problems and shortcomings of complex structure, high cost, and additional occupation of carriage space.

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