Unlocking and locking device resistant against inverse motion impact

Abstract

The invention discloses an unlocking and locking device resistant against inverse motion impact. The unlocking and locking device resistant against inverse motion impact comprises a double-stopping-surface stopping toothed plate (3) and a double-stopping-surface shifting wheel (4), wherein the double-stopping-surface stopping toothed plate is provided with a left stopping surface and a right stopping surface which are independent, and the double-stopping-surface shifting wheel is provided with a claw stopping surface and an auxiliary stropping surface. In the process of working, the double-stopping-surface stopping toothed plate and the double-stopping-surface shifting wheel form double-stopping-surface supporting due to the fact that the left stopping surface and the right stopping surface respectively abut against the claw stopping surface and the auxiliary stropping surface, the inverse motion impact of a seat is resisted through the characteristic that two stopping surfaces are balanced in stress, and the unlocking trend of the shifting wheel is eliminated. The defects of poor resistance against inverse motion impact and unreliable locking in the prior art are overcome, and a car seat manual angle regulator achieves the purposes of improving inverse motion impact resistance and being reliable in locking by means of double-stopping-surface supporting.

Description

technical field [0001] The invention relates to an unlocking and locking device for a manual recliner for the back of an automobile, in particular to an unlocking and locking device for anti-reverse dynamic impact for controlling the mutual unlocking or locking of a guide plate and a movable tooth plate of the manual recliner for the back of an automobile. Background technique [0002] Manual recliner for car seat back, referred to as manual recliner, is a pivot device that manually adjusts the elevation angle of the back of the car seat and folds the back of the seat on the seat. The manual recliner consists of a guide plate, a rotating shaft, and a stop tooth Plate, toggle wheel, torsion spring, movable tooth plate, fixed ring, wherein, the guide plate is connected with the seat back of the car, the movable tooth plate is connected with the seat seat of the car, and the stop tooth plate and the toggle wheel constitute the control guide plate and The movable tooth plate is ...

AI Technical Summary

Problems solved by technology

[0002] Manual recliner for car seat back, referred to as manual recliner, is a pivot device that manually adjusts the elevation angle of the back of the car seat and folds the back of the seat on the seat. The manual recliner consists of a guide plate, a rotating shaft, and a stop tooth Plate, toggle wheel, torsion spring, movable tooth plate, fixed ring, wherein, the guide plate is connected with the seat back of the car, the movable tooth plate is connected with the seat seat of the car, and the stop tooth plate and the toggle wheel constitute the control guide plate and The movable tooth plate is used as a clutch mechanism for relatively rotating unlocking or a relatively fixed locking relationship. Therefore, the stop tooth plate and the toggle wheel are called the unlocking and locking device of the manual recliner. Continuous angle adjustment and fast folding car seat back manual recliner", when the stop tooth plate and the toggle wheel in the prior art are in the interlocked state, the gap between the slot of the stop tooth plate and the claw of the toggle wheel There is only one locking surface that supports and interferes with each other, called a single locking surface, see Figure 5 , due to the unbalanced instability of the single stop surface support, in actual work, the manual recliner will produce reverse motion due to the bumps of the car. The so-called reverse motion refers to the back and seat of the car through the guide plate and the movable tooth plate Push the stop tooth plate to impact the toggle wheel, so that the toggle wheel tends to move toward the unlocking direction; the reverse movement causes a safety accident that the chair back automatically unlocks and rotates at an elevation angle. Unreliable problems and shortcomings

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