Disc type gapless angle adjuster

Abstract

The invention relates to a disc type gapless angle adjuster, belonging to the technical field of car seat accessories. The disc type gapless angle adjuster consists of a fluted disc seat, a fluted disc, at least two small toothed plates, a driving mechanism and a closed ring, and is characterized in that a first shaft hole, a first locating boss and a concave cavity are arranged on the fluted disc seat, the concave cavity is internally provided with a toothed plate locating boss, a supporting boss and a spring containing chamber; the fluted disc is provided with a second shaft hole, a containing chamber and a second locating boss, an inner ring and an outer ring are formed at the outer side of the containing chamber, a limiting block is arranged on the inner ring and a toothed ring is arranged on the outer ring; the driving mechanism consists of a locking block, a cam plate, a central shaft and a spring; the at least two small toothed plates are sector-shaped, each small toothed plateis provided with a toothed plate locating hole, teeth and a bottom edge, and one of the small toothed plates is provided with the limiting boss; and the closed ring is packaged around the outer edgesof the fluted disc seat and the fluted disc. The disc type gapless angle adjuster has the advantages that: the locking is reliable and gapless; empty gears can fast change angle; the strength is high; the unlocking is convenient, the action is flexible and the performances are reliable; the volume is small, and the assembling is convenient; the machining is convenient; and the range of application is wide.

Description

technical field [0001] The invention belongs to the technical field of car seat accessories, and in particular relates to a disc for a car seat that is installed between the seat back and the seat seat and can properly adjust the angle between the seat back and the seat seat Type gapless adjuster. Background technique [0002] The function of the car seat recliner is as mentioned above. It is responsible for changing the forward and backward angle of the seat back. As such a device, it must be equipped on the car seat. At present, the recliner commonly used on the market for motor vehicle seats is a disc recliner, which mainly includes a fixed disc, a movable disc and a locking mechanism for maintaining the position of the backrest relative to the seat cushion. Dip attitude. The locking mechanism includes a rack ring on the movable disc and several pawls, each of which has a plurality of teeth. The ratchet can move radially between a locking position and an unlocking posi...

AI Technical Summary

Problems solved by technology

This patent scheme discloses a "universal recliner", which has the advantages of high locking strength, small displacement angle, wide adjustment range, small axial clearance, good balance, simple structure, small volume, The advantage of easy installation, but the following problems are exposed in the actual use process: because the small tooth plate and the cam plate are both in the sliding groove of the fixed plate to perform linear motion respectively, and pass through the two sides of the ear retaining groove of the small tooth plate and the cam plate. The locking and disengagement of the recliner is realized by the action between the side retaining ears, so the processing accuracy of the parts is high, and the consistency of the recliner clearance is difficult to control

However, the following problems have been exposed in the actual use process: 1. Since the three small tooth plates are evenly distributed throughout the entire circumference, it is impossible to set no cogging on the ring gear; Gear limit structure, so there is no empty gear, and the angle of the recliner cannot be changed quickly; 2. Because the rotation of the driving mechanism drives the small tooth plate to move in a straight line, there is no clearance design, so the processing accuracy of the linear groove The requirements are particularly high, and the clearance of the recliner is not easy to control

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