Automobile door stopper

Abstract

The invention belongs to the technical field of automobile door stoppers, and particularly relates to an automobile door stopper. The automobile door stopper comprises a mounting support fixed to an automobile body, a limit box fixed to an automobile door, a rubber bumper block used for providing buffering power, a limit arm and a clamping mechanism. According to the automobile door stopper designed by the invention, limit planes of limit protrusions on the upper side and the lower side of the limit arm are designed, so that the working state of an upper-side compression spring is different from that of a lower-side compression spring in the working process of the stopper, spring failure weakening times are different, elastic force of the spring which loses efficacy slowly is matched withan adjusting mechanism, a squeezing block squeezes a second rack, the pre-compression amount of the upper-side compression spring and the pre-compression amount of the lower-side compression spring are increased, and the reduction degree of resistance torque produced after the stopper works for a long time is decreased.

Description

[0001] Technical field [0002] The invention belongs to the technical field of car door stoppers, in particular to an automobile door stopper. Background technique [0003] At present, when the vehicle is manufactured, a door stopper, a rubber spring stopper and a torsion spring stopper are installed on the car door. The car door stopper generally has the following two functions: one is the stopper arm Set 2-3 arc belts on the top, so as to form switch gears at the nodes of the arc belts and arc belts, so that the door has 2-3 positioning points during the opening and closing process; the second is to ensure that the car is on the specified ramp. It can ensure that the door stops at a certain fixed point and does not open or close by itself. The advantages of this structure are simple structure, low cost, small footprint, and maintenance-free; the disadvantage is that the limit torque decreases rapidly after a period of operation. [0004] For the rubber spring type limiter...

AI Technical Summary

Problems solved by technology

The advantages of this structure are simple structure, low cost, small footprint, and maintenance-free; the disadvantage is that the limit torque decreases rapidly after a period of operation

[0004] For the rubber spring type limiter, the door limiter of this structure generally has two or three gears, its maximum torque is about 35N.m, its length is generally about 60mm, and its maximum opening angle is generally below 70 degrees. After the test, the torque change is about 30%-40%; but the limit force loss is relatively large. After a long time of use, the elastic force of the spring or rubber will weaken, which will affect the overall performance of the vehicle.

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