Movable hinge device for automobile engine hood with double-rivet structure

Abstract

The invention aims at providing a movable hinge device for an automobile engine hood with a double-rivet structure. A sliding groove is formed in one side of an engine hood fixed framework so that the device can move along guide rivets; a flange combining hole is formed in one side of the sliding groove so that the sliding groove can be combined with flanges formed on the guide rivets so that the flanges of the guide rivets are combined, and sliding parts formed between the head and the flanges are located on the inner side of the sliding groove; a fixed part is a structure which combines a fixed hole in an engine hood operation framework to be riveted. The movable hinge device aims at enabling the sliding parts of the guide rivets to smoothly move in the sliding groove and the time for raising the rear end part of the engine hood is shortened, so that the buffering effect is ensured when the engine hood collides with pedestrians; the space for expanding a safety airbag is rapidly ensured so that the pedestrian safety is ensured.

Description

technical field [0001] The present invention relates to a living hinge device for an automobile engine cover, and more specifically, relates to a living hinge device for an automobile engine cover with a double rivet structure, which can be used to lift the rear end of the engine cover when the front of the vehicle collides with a pedestrian. The guide rivet of the active living hinge device is modified, so that the operation reliability of the living hinge device can be ensured, and the convenience and quality of manufacture can be improved. Background technique [0002] As we all know, the car engine cover is hinged to open and close the engine compartment. Usually, if the weight of the engine cover is light, the weight and strength of the hinged engine cover will increase, and the chain hinge method will be used to realize the engine cover. opening and closing. [0003] Generally speaking, if a car collides with a pedestrian in front of the car while the car is running, ...

AI Technical Summary

Problems solved by technology

[0006] During the assembly process of this kind of living hinge device, the diameter of the part that constitutes the sliding part of the guide rivet is enlarged, and the phenomenon of being squeezed into the inner side is serious, or the guide rivet cannot slide due to the close relationship between the fixed frame of the vehicle body and the chain ring. Issues with smooth movement in slots

[0007] As a solution to the problem, the pressurization is weakened when hitting one side of the leading rivet, so that the diameter at the sliding part can be prevented from becoming larger, but in this case, there is a disadvantage that the head is poorly formed

[0008] As another method, after manufacturing the living hinge unit, test the sliding action, screen out products that do not reach the appropriate level, perform grinding processing to widen the sliding groove or perform correction or grinding processing on the sliding part of the guide rivet, but there is movement Problem of Productivity Decrease in Hinge Devices

[0009] In particular, the quality of the living hinge device is greatly reduced. In the case of using such a living hinge device, when a pedestrian hits the bonnet in front of the car, the rear end of the bonnet cannot be raised rapidly. There are many problems with the purpose

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