Integrated door hinge of single-spring double-cam structure

Abstract

The invention belongs to the field of vehicle door limiters, and discloses an integrated door hinge of a single-spring double-cam structure, the integrated door hinge comprises a vehicle body connecting assembly and a limiting unit, the vehicle body connecting assembly comprises a vehicle body connecting piece, a vehicle door connecting piece and a connecting pin shaft, and the connecting pin shaft is fixedly arranged on the vehicle door connecting piece; the limiting unit comprises a compression spring and two end face cam assemblies which are arranged on the connecting pin shaft in a sleeving mode, the two end face cam assemblies are arranged at the two ends of the compression spring respectively, each end face cam assembly comprises a limited end face cam and a limiting end face cam, the limited end face cams are fixedly arranged on the vehicle body connecting piece, the limiting end face cams abut against the compression spring, and the limiting end face cams abut against the compression spring. The limited end face cam is provided with a limited part, the limiting end face cam is provided with a limiting part, and the limited part and the limiting part correspond to each other in a concave-convex mode along the axis of the connecting pin shaft.

Description

technical field [0001] The invention belongs to the field of car door stoppers, in particular to an integrated door hinge with a single spring and double cam structure. Background technique [0002] The integrated integrated door hinge is widely used as a hinge component with a limit function between the car door and the vehicle body because it occupies less space inside the car door. [0003] Currently, if figure 1 As shown, the existing integrated integrated door hinge includes two end cams that are concave-convex matched with each other, and by setting a compression spring on one side of the two end cams, and the compression spring is in a compressed state, the integrated door The hinge has a predetermined limiting force through the elastic restoring force of the compression spring, that is, the effective force arm of the limiting force formed on the contact surface of the end cam depends on the compression spring generated in the axial direction of the mating end cam. ...

AI Technical Summary

Problems solved by technology

[0004] This kind of integrated door hinge has mature technology and convenient structure, but with the continuous increase of market demand, higher requirements are put forward for the miniaturization of integrated door hinge. In order to meet this requirement in order to obtain more markets, integrated door hinge The miniaturized R&D design has become the development focus of various companies at present, but by increasing the spring, the contact stress on the contact surface of the end cam will be greatly increased, which will affect the service life of the integrated hinge.

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