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, 1984
Filed:
Nov. 30, 1981
Toshio Gyoda, Nagoya, JP;
Kabushiki Kaisha Tokai Rika Denki Seisakusho, Aichi, JP;
Abstract
A webbing lock device in which an occupant restraining webbing extending from a takeup shaft of a retractor is clamped between a pair of clamping members by closing an interval therebetween, when an abrupt tensile force acts on the webbing as in the event of an emergency situation. Each of the clamping members has a corrugated surface on opposed side thereof and concave portions of one of the corrugated surfaces are disposed to correspond to convex portions of the other of the corrugated surfaces. An interval between the corrugated surfaces progressively decreases toward the takeup shaft along the longitudinal direction of the webbing, and the radius of the curvature of the corrugated surfaces, for example, is progressively smaller toward the takeup shaft, whereby clamping force to the webbing between the corrugated surfaces progressively increases toward the takeup shaft along the longitudinal direction of the webbing and there is no point where tensile force acting on the webbing abruptly decreases or increases to break the webbing.