Browse Publications Technical Papers 2017-01-1459
2017-03-28

A Development of the New Mechanism for Preventing Door Opening in Side Impact Test 2017-01-1459

During a new vehicle development process, there are several requirements for side impact test that should be confirmed. One of the requirements is the prevention of door opening during side impact test. Even though there are many causes for door opening problem, this study deals with inertia effect by impact energy. Until now, there have been two classical methods to prevent car door from opening in side impact. One is the increment of the inertia resistance by increasing the mass of the balance weight and the spring force. The other is the application of the blocking lever. Unfortunately, in spite of our efforts, the door opening problem occurs occasionally. Therefore, to improve the problem fundamentally, this paper proposes a new blocking lever mechanism that work similar to ball-point pen structure. The proposed mechanism fixes the blocking lever when the opening directional inertia force is applied to the door outside handle during side crash. With this, it is possible to prevent vehicle door from opening during side impact. Additionally, it is possible to reduce the weight of door outside handle and the spring force.

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