| 摘要 |
A blocking device for vehicle reel-type safety belts with a ratchet wheel to be connected to the reel of the safety belt, a pair of pivotal pawls engageable with the ratchet wheel to prevent rotation of the ratchet wheel and thus the reel in one direction of rotation of the reel, a mechanism operable by an abnormal change of speed of the vehicle, capable of pivoting one of the pawls into engagement with the ratchet wheel and then said one pawl pivots the other of the pawls into engagement with the ratchet wheel stopping the unwinding of the safety belt. |
