Patent ID: 7635103

Claim:
A seat belt webbing lock preventing apparatus of a seatbelt retractor, said seatbelt retractor comprising a spool and a webbing disposed about the spool, said seat belt webbing lock preventing apparatus comprising; a webbing control portion comprising a locking portion and a locking actuation mechanism for operating the locking portion; said locking portion comprising a torsion bar mechanism for limiting a force applied to a seatbelt, a locking base coupled to the torsion bar, and a pawl disposed on the locking base; said locking actuation mechanism comprising a lock gear, a pawl spring compressively mounted between the locking base and the lock gear; a flywheel pivotally mounted onto the lock gear; a flywheel compressive spring biasing the flywheel relative to the lock gear; and a flywheel rotation control portion comprising a retainer and a friction spring mounted on the retainer and engaging the flywheel to reduce movement of the flywheel at below a certain value of an acceleration or deceleration in response to withdrawal or rewinding of the webbing.