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:
Jun. 21, 2016
Filed:
Feb. 05, 2014
Kabushiki Kaisha Tokai-rika-denki-seisakusho, Aichi-ken, JP;
Wataru Yanagawa, Aichi-ken, JP;
Masaru Ukita, Aichi-ken, JP;
KABUSHIKI KAISHA TOKAI-RIKA-DENKI-SEISAKUSHO, Aichi-Ken, JP;
Abstract
In a webbing take-up device, due to actuation of a pre-tensioning mechanism when a vehicle collision, a piston is moved, rack teeth of the piston mesh with pinion teeth of a pinion, causing the pinion rotate and a spool to be rotated in the take-up direction. In a state where a large rotational force in the pull-out direction is acting from an occupant on the pinion, through a webbing and the spool, a rack tooth is broken by a pinion tooth when the rack teeth initially mesh with the pinion teeth, especially by a tip end of the rack tooth meshing with the pinion tooth. Therefore, sticking-in of the pinion teeth rack teeth and the pinion teeth can be suppressed, or easily eliminated, enabling loss in force transmitted from the piston to the pinion to be reduced.