Outer unlocking mechanism for car door

Abstract

The invention discloses an outer unlocking mechanism for a car door. The mechanism comprises an actuating element, an outer handle and an unlocking arm, wherein the actuating element and the outer handle are fixedly arranged on the car door, the unlocking arm is composed of an unlocking rod, a connecting rod and a cross rod, one end of the actuating element is fixedly mounted on the car door while the other end of the same is movably connected with one end of the unlocking rod, the other end of the unlocking rod is fixedly connected with one end of the cross rod through the connecting rod, and the cross rod is parallel to a plane where the car door is positioned, is perpendicular to the outer handle and is positioned on the inner side of the outer handle. The weight and offset of center of gravity of the outer unlocking mechanism are reduced, so that the center of gravity of the whole mechanism is deviated towards the car door and successful unlocking can be guaranteed. Steps of unlocking and door opening are separated, so that independent operating of the step of outside unlocking is realized and unlocking reliability is improved. A special tensioning band is adopted to fix an outer clamp, so that fixing and mounting and demounting are facilitated. A rubber layer is arranged, so that internal force, opposite to the car door in direction, generated during unlocking, of the outer unlocking mechanism is effectively buffered.

Description

technical field [0001] The invention relates to an unlocking device, in particular to a mechanism for unlocking the outside of a vehicle door. Background technique [0002] With the development of the automobile industry, automobiles are becoming more and more popular in people's lives, and people's requirements for automobiles are becoming more and more stringent. People's requirements for the hand feeling when opening and closing the door are: to make the door open smoothly, and not to make the operation force too large. According to people's actual needs for various performance requirements of the car, the car must pass the door opening and closing test before leaving the factory to meet the "humanization" requirement, that is, to simulate the state of a human being for design. [0003] The external unlocking mechanism in the prior art is as figure 1 Outer unlocking mechanism shown using a cord. [0004] This kind of external unlocking mechanism is used as the moving e...

AI Technical Summary

Problems solved by technology

[0008] 1. The two steps of unlocking and opening the door work together. When the actuator fails to unlock, it still pulls the outer handle of the door to open the door, which may cause damage to other mechanisms; 2. Because the force required for unlocking is very small (less than 10N), and the force to open the door is relatively large (less than 80N), the actuator cannot meet the unlocking force and door opening force at the same time, and can only adapt to a larger door opening force, which will cause excessive unlocking force and damage to the unlocking mechanism The situation occurs, so this kind of external unlocking mechanism has hidden dangers in terms of safety; 3. The outward reaction force generated by the entire unlocking mechanism during the unlocking process will lead to the separation of the mechanism and the door; 4. The entire unlocking mechanism has a large mass and the center of gravity is biased Outside the door, it will cause the unlocking mechanism to tilt vertically downwards, which in turn may cause the mechanism to fall off

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