An easy entry mechanism for car seats

Abstract

The invention relates to an easy-entry mechanism for an automobile seat. The easy-entry mechanism comprises a hook spring assembly and a constant force spring assembly, wherein the hook spring assembly comprises a hook spring and a brake block; one end of the hook spring is fixedly connected with an upper rail, and the other end of the hook spring is fixedly connected with a lower rail; the expanding and contracting direction of the hook spring is consistent with the length direction of a sliding rail; the brake block is connected with the other end of the hook spring; the constant force spring assembly comprises a constant force spring and a rubber; the rubber can be in interference fit with the brake block to prevent the upper rail from sliding; one end of the constant force spring is fixedly connected with the lower rail, and the other end of the constant force spring is fixedly connected with an upper cross plate; the expanding and contracting direction of the constant force spring is consistent with the length direction of the sliding rail; the rubber is connected with the other end of the constant force spring; and the expanding and contracting direction of the hook spring is opposite to the expanding and contracting direction of the constant force spring. According to the easy-entry mechanism disclosed by the invention, the reply pushing stroke of the seat is reduced, and the maximum reply operating physical force is reduced.

Description

technical field [0001] The present invention relates to an easy entry mechanism for a car seat. Background technique [0002] With the implementation of the two-child policy, seven-seater family cars are increasingly valued by the market, and the second row of seats is generally equipped with an Easy-Entry (EZ, easy-entry) mechanism for the convenience of passengers in and out. Such as Figure 1-6 As shown, when a passenger needs to enter the rear row of the vehicle, he can manually pull the unlocker 200 on the top of the seat back 100 of the second row, thereby driving the wire harness 300 to move upward, thereby driving the seat back 100 to fold forward. At this time, The metal parts 400 on both sides of the seat rotate downwards, thereby pressing down the plastic part 500, and then the rack 600 moves down through the plastic part 500, so that the slide rail 700 can be unlocked, so that the upper rail of the slide rail 700 can be connected The seat slides along the lower ...

AI Technical Summary

Problems solved by technology

[0004] The first category, after the EZ mechanism is unlocked, because the spring force is not enough to overcome the maximum static friction force, the seat cannot move forward automatically after the slide rail is unlocked, but the backrest needs to be pushed manually, that is, manual thrust is required to make the seat Move forward, and at the same time, when returning, you also need to push the seat to the original position all the way;

[0005] The second type, after the EZ mechanism is unlocked, although the seat can be automatically moved to the front position through the spring force, the power-assisted structure of this type of single spring needs to overcome the sliding friction and spring force at the same time when the spring returns, so the operating force Very big

[0006] It can be seen that the current single-spring EZ mechanism can only achieve automatic forward movement at most in terms of function, but cannot automatically return. Therefore, there is still a problem of inconvenient operation for passengers.

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