Compact vehicle

摘要

This is to constrain a rider by a seat belt to more enhance impact absorption effect by an air bag and to release the constraint of the rider when secondary motion is caused in relation to a body in a compact vehicle provided with a seat provided to the rear of the body and the air bag that can constrain the rider on the seat from a forward direction when the air bag is inflated and extended. To achieve this, one end of a seat belt 24 that can be wound onto the waist of a rider on a seat 12 is coupled to a body 16 via a retractor provided with a locking function in emergency, and coupling means 29 in which coupling and the release of coupling can be switched manually and in a coupled state, coupling is automatically released when predetermined time elapses since an air bag 19 is inflated and extended is provided between the other end of the seat belt 24 and the body 16.