Power assisting mechanism for opening vehicle trunk lid

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.

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...

AI Technical Summary

Problems solved by technology

But there are also some shortcomings: the torsion bar needs to be pre-twist at a certain angle in the installed state, which will generate a pre-torsion force, the torsion bar installed on the bow hinge is limited by the structure, the rotating arm is shorter, the installation is more laborious, and there is no setting Spare holes under torsion bar torsion attenuation, reducing torsion bar life

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