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:
Feb. 04, 2003
Filed:
Feb. 15, 2001
Keiichi Katoh, Niwa-gun, JP;
Kabushiki Kaisha Tokai-Rika-Denki-Seisakusho, Aichi-ken, JP;
Abstract
A webbing take-up device which, when a webbing belt is pulled out, can reduce the rewind urging force applied to the vehicle occupant by the belt. The take-up device includes a spool for winding a webbing belt, a take-up shaft that is connected to the spool, a shaft member connected to the take-up shaft via adapters a torsion coil spring connected between a ratchet wheel and adapter another torsion coil spring connected between the adapters and a spiral spring connected to the shaft member. When the belt is pulled out and secured over an occupant, a plunger engages ratchet wheel and torsion coil spring is wound tighter on the adapter The resultant frictional force and urging force of the torsion coil spring is greater than the urging force of the spiral spring Thus, slack is present in the torsion coil spring and the adapter rotates relatively to the adapter In this way, the urging force of the spiral spring is not completely applied to the spool thus relieving the occupant of the full rewind force of spring