Journal of Industrial Technology (산업기술연구)
- Volume 26 Issue A
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- Pages.47-54
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- 2006
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- 1229-9588(pISSN)
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- 1598-1371(eISSN)
Development of Inertial Locking Anti-G Buckle of A Seatbelt System With Pre-tensioner
프리텐셔너가 장착된 시트벨트 시스템의 관성잠김 안전버클 개발
Abstract
To improve passenger safety, seat belt systems with pre-tensioner that tightens seat belt webbing using explosive just before collision are widely used these days. Even though seatbelt must not unlatched without passengers' operation. explosive power of pre-tensioner can cause unlocking of a buckle. To prevent the unlocking, an anti-g mass that blocks displacement of the release button has been attached to the buckle. In this study, the dynamics and statics of locking mechanism associated with operation of anti-g buckle has been theoretically investigated, and important design variables that affect the operation of anti-g buckle have been identified. Through the total seat belt system's dynamic simulation using force and displacement inputs obtained from seat belt sled test, design of the proposed anti-g buckle has been validated.
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