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:
Aug. 24, 1982
Filed:
Sep. 17, 1980
Masaru Morinaga, Yamato, JP;
NSK-Warner K.K., Tokyo, JP;
Abstract
A seat belt retractor is provided with a take-up force reducing mechanism which has two spiral springs at least one of which acts for webbing take-up and in which the webbing take-up force can be reduced by controlling at least one of the two spiral springs. The retractor comprises a cam formed integrally with a take-up shaft and having a small-diametered circular cam portion, a large-diametered circular cam portion and a spiral cam portion interconnecting said circular cam portions, a follower member adapted to follow the cam portions of the cam and during webbing pay-out, to move from one of the small-diametered and the large-diametered cam portion to the other via the spiral cam portion and during webbing rewind, to move from said other cam portion to said one cam portion via the spiral cam portion, and spring force controlling means for reducing the take-up force when the follower member is following the spiral cam portion.