Power assisting mechanism for opening vehicle trunk lid

A technology of trunk lid and power-assisted mechanism, which is applied in the direction of wing leaf opener, building structure, door/window accessories, etc. It can solve the problems of reducing the service life of the torsion bar, short rotating arm, laborious and other problems, and achieve the effect of labor-saving installation

CN101892784AActive Publication Date: 2010-11-24CHONGQING CHANGAN AUTOMOBILE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2010-11-24

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Abstract

The invention discloses a power assisting mechanism for opening a vehicle trunk lid. The mechanism comprises a left arched hinge, a right arched hinge, a left torsion bar and a right torsion bar, wherein one end of the left torsion bar is in fit connection with the right arched hinge, and one end of the right torsion bar is in fit connection with the left arched hinge. The mechanism is characterized in that: a bend is formed on the left of the left torsion bar and is pressed against the left arched hinge; a left rotating arm is arranged under the bend; the end part of the left rotating arm ismatched with a positioning hole which is formed on a side wall inner skin bracket on the left of the vehicle body; a bend is also formed on the right of the right torsion bar and is pressed against the right arched hinge; a right rotating arm is arranged under the bend; and the end part of the right rotating arm is matched with a positioning hole which is formed on a side wall inner skin bracket on the right of the saloon body. The mechanism is more labor-saving to mount. When torsional force is attenuated on the left and right torsion bars, the end parts of the left and right rotating arms can be adjusted to be matched with another positioning hole on the side wall inner skin bracket for continuous use.
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Description

technical field

[0001] The invention belongs to an automobile body accessory, in particular to an opening assist mechanism for a trunk lid of a car. Background technique

[0002] The trunk lid hinge is the opening and closing part of the trunk lid. In the current car market with many varieties, there are mainly three mechanisms to realize the opening and closing movement of the trunk lid. Leaf hinges plus air pressure support rods, and third bow hinges plus torsion bar springs. These three mechanisms account for almost all of the car market, but the torsion spring balance hinge mechanism is favored by more mid-level cars, especially the economical Japanese series cars generally recognized by the public, and the torsion bar balance hinge mechanism is even more affectionate. The reason is that the opening and closing performance of this mechanism is good, and the cost is not very high. This opening mechanism utilizes the tightening potential energy of the torsion bar to redu...

Examples

Embodiment Construction

[0014] Below in conjunction with accompanying drawing, the present invention will be further explained to existing car trunk lid opening booster mechanism.

[0015] see figure 1 , is the widely used car trunk lid opening assist torsion bar spring mechanism at present, and its two torsion bars 8 are all installed on the bow hinge 7, and the two torsion bars are separated by the original partition card 9 in the middle to avoid mutual interference and friction.

[0016] see Figure 5 The opening booster mechanism for a trunk lid of a car shown includes a left bow hinge 5, a right bow hinge 12, a left torsion bar 4 whose one end is matched with the right bow hinge 1, and a left torsion bar 4 whose one end is matched and connected with the left bow hinge 5. Torsion bar 14, the left arched hinge is identical and symmetrical to the right arched hinge, and the left torsion bar is identical and symmetrical to the right torsion bar;

[0017] see image 3 , the left part of the left t...