The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 27, 1977
Filed:
Oct. 01, 1973
Per Olaf Weman, Haslah, DT;
Sigmatex, A.G., Basel, CH;
Abstract
An emergency locking vehicle seat belt retractor includes a flywheel supported for rotation with the reel and normally urged into rotation with the reel by a spring supported between the reel and the flywheel; when the reel accelerates rapidly in the belt extending direction, as in an accident when the occupant moves forward quickly, the inertia of the flywheel causes it to resist the spring pressure and slip relative to the reel. A dog is supported between the flywheel and the reel in such a manner that it extends in a radial direction in response to this slippage and engages an internal ratchet formed on an actuating arm rotatably supported relative to the reel axis. The dog transfers the rotational motion of the reel to the arm causing it to contact and force the pawl to engage a circular ratchet formed on the reel to lock the reel against further extending rotation. The pawl may also be actuated into locking condition by an arm connected to a pendulum so as to sense either a sudden deceleration of the vehicle or a substantial shift of the vehicle from its horizontal orientation.