Two-point disc angle adjuster

Abstract

The invention relates to a two-point disc angle adjuster, belonging to an automobile seat accessory. The two-point disc angle adjuster comprises a toothed disc seat, a toothed disc, a small toothed plate, a small toothed plate driving mechanism and a closed ring, wherein the toothed disc seat is disc-shaped, a first axle hole is formed in the middle of the axial direction of the toothed disc seat, a first positioning lug boss is convexly arranged at one side of the toothed disc seat, a cam plate containing cavity is formed at the other side of the toothed disc seat, toothed plate positioning lug bosses are convexly arranged in the cam plate containing cavity, and a sliding groove is formed between the toothed plate positioning lug bosses; the toothed disc is disc-shaped, a second axle hole is formed in the middle of the axial direction of the toothed disc, a containing cavity is formed at one side of the toothed disc, a toothed ring is formed on the inner wall of the outer circumference of one side of the toothed disc, a toothless groove is arranged on the toothed ring, and a second positioning lug boss is convexly arranged at the other side of the toothed disc; the small toothed plate driving mechanism is arranged between the toothed disc seat and the toothed disc and comprises a cam plate, a center axle and a spring; the small toothed plate is arranged in the sliding groove, teeth are arranged at the outer side of the small toothed plate, and a blocking groove and a bottom edge are formed at the inner side of the small toothed plate; and the closed ring is enveloped at the periphery of the outer edges of the toothed disc seat and the toothed disc. The two-point disc angle adjuster can ensure the consistency of toothed plate movement, has reliable locking and small gaps, has neutral positions so as to fast change the angle, and has high strength, low cost and wide application range.

Description

technical field [0001] The invention belongs to the technical field of automobile seat accessories, and in particular relates to a two-point disc adjustment which is installed between the seat back and the seat and can properly adjust the angle between the seat back and the seat. horns. 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 position. When...

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 for 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: due to the use of three small tooth plates, the three small tooth plates are evenly distributed throughout the entire circumference, so it is impossible to set no cogging on the ring gear, so there is no empty gear, and it cannot be fast. Change the angle of the recliner

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