Bouncing mechanism of car trunk

Abstract

A bouncing mechanism of a car trunk comprises arch hinges, installation base boards and torsion rod springs. The left side and the right side inside the car trunk are respectively provided with one arch hinge, one installation base board and one torsion rod spring, and the two arc hinges, the two installation base boards and the two torsion rod springs are respectively arranged symmetrically and are identical in structure. One end of an arch arm of each arch hinge is hinged to the corresponding installation base board, each installation base board is installed on a lateral rail assembly, and the other end of each installation base board is hinged to a trunk cover. The inner end of each torsion rod spring is fixed to the corresponding installation base board and the outer end of each torsion rod spring is fixed to a clamping groove of a lateral rail inner board at the same side. Each arch arm is further hinged to a torsion spring connecting rod, the middle of each torsion rod spring is clamped with the corresponding torsion spring connecting rod, a fixing installation point at each inner end, a fixing point at the corresponding outer end and a clamping point of the middle of the corresponding torsion rod spring are not on the same line, and therefore it is guaranteed that a four-bar linkage mechanism is formed. According to the bouncing mechanism, the structure and the installation position of each torsion rod spring are changed and the torsion rod springs are arranged at the left side and the right side of the trunk instead of transversely penetrating through the trunk and then being fixed. The bouncing mechanism has the advantages of being simple and practical in structure, stable and reliable in performance, low in cost and weight and capable of being widely applied to a car trunk system with an arch hinge torsion rod spring mechanism.

Description

technical field [0001] The invention relates to a system part of an automobile body, in particular to a spring-up mechanism for an automobile trunk. Background technique [0002] At present, there are mainly three kinds of bouncing mechanisms for the trunk of a car. The first is a four-link gas spring structure, and the second is a bow-shaped hinge coil spring structure. The most widely used is the third type, namely the bow hinge torsion bar spring structure. see figure 1 , the torsion bar spring in the existing third structure, the two ends are respectively fixed on the bow arms 3 of the left and right hinges, its main defect is: the spring torsion bar 1 is too long, the cost is high, and it is not conducive to the lightweight of the whole vehicle The spring torsion bar needs to occupy part of the luggage storage space; the middle of the two spring torsion bars needs to be fixed with plastic clips 2, which increases the number of parts, and there will be frictional noise...

AI Technical Summary

Problems solved by technology

see figure 1 , the torsion bar spring in the existing third structure, the two ends are respectively fixed on the bow arms 3 of the left and right hinges, its main defect is: the spring torsion bar 1 is too long, the cost is high, and it is not conducive to the lightweight of the whole vehicle ;The spring torsion bar needs to occupy part of the storage space of the suitcase; the middle of the two spring torsion bars needs to be fixed with a plastic clip 2, which increases the number of parts, and there will be frictional noise between the torsion bar spring and the plastic clip

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