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:
Jul. 31, 1979
Filed:
Jan. 06, 1978
Toshiaki Shimogawa, Nishio, JP;
Satoshi Kuwakado, Aichi, JP;
Nippon Soken, Inc., Nishio, JP;
Abstract
A seat belt retracting and winding device comprises a housing, a winding shaft rotatably mounted within the housing, a seat belt wound around the winding shaft with one end made fast to the winding shaft, a first and strong spring with one end made fast to the housing, a second and weak spring with one end made fast to the winding shaft, the second spring being connected in series to the first spring, and a control means which may cause the first spring not to exert its returning force on the seat belt in the direction in which is wound the seat belt when the seat belt is unwound and extended against the forces of both the first and second springs and is fastened and which may cause the first spring to exert its turning force on the seat belt when the latter is unfastened. The seat belt retracting and winding device further includes a means for relaxing an impact exerted on the second spring when the turning force of the first spring is exerted on the seat belt so that the quick compression or winding of the second spring may be avoided, the durability of not only the second spring but also a member retaining the second spring may be improved, the generation of noise may be minimized and a driver or an occupant may be refrained from being subjected to an unpleasant restraining force.