Bolt axial fixing device for motor vehicle, has wire shaped safety device loosely accommodated with slot, and axial force for loosening safety device is changed based on function of turning position relative to bolt or wave

摘要

The device has a safety device (9) loosely accommodated with a slot (8), where the safety device is wire shaped. An axial force for loosening the safety device is changed based on a function of a turning position relative to a bolt or a wave. The safety device exhibits attachment regions (11-13), and the groove exhibits a solution region (14), where the number of attachment regions is larger than the number of solution region.