An Emergency Locking Follow-up Mechanism During Rapid Acceleration

Abstract

The invention relates to an emergency locking follow-up mechanism in the process of rapid acceleration movement, wherein the two ends of the gear sheet metal and the stop sheet metal are pivotally connected to the base and the lugs respectively, forming a four-bar linkage mechanism. The main body, the main body has a locking position between the initial position and the unlocking position, the emergency locking follow-up mechanism includes a gravity lock rotatably installed on one side of the base, and the gravity lock is connected to the stop through the gravity lock spring plate. Bit sheet metal connection. The invention designs the gravity lock so that when the acceleration of the gravity lock is less than the critical acceleration, the main body reaches the locking position earlier than the gravity lock; when the acceleration of the gravity lock is greater than the critical acceleration, the gravity lock reaches the locking position before the main body. In addition, the present invention utilizes the omega spring so that the gravity lock can reduce the idle stroke to reach the locking position faster, and provides a co-directional moment action along with the movement direction of the gravity lock, which can prevent the gravity lock from rebounding.

Description

technical field [0001] The invention relates to the field of car seats, in particular to an emergency locking follow-up mechanism during rapid acceleration. Background technique [0002] When a vehicle collides with the rear, the human body will fall backward due to inertia. At this time, the pressure of vehicle acceleration or deceleration is concentrated on the fragile neck and head of the human body, and the headrest acts as a buffer to protect the human body. In order to enable the headrest to be adjusted forward and backward as required, the headrest is usually equipped with a front-back two-way headrest mechanical movement mechanism. In addition, in order to enable the adjusted headrest to return to its original position, the front and rear two-way headrest mechanical movement mechanism is also equipped with a reset mechanism. At present, the reset mechanisms of the mainstream front and rear two-way headrest mechanical movement mechanisms on the market are manual and ...

AI Technical Summary

Problems solved by technology

[0003] The invention provides an emergency locking follow-up mechanism in the process of rapid acceleration, which solves the problem that the mechanical mechanism of the self-resetting two-way headrest in the prior art fails to unlock during the rapid acceleration, and solves the problem that the headrest cannot The problem of returning to the initial position but unable to provide effective support and protection for the head and neck of passengers

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