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:
May. 13, 2014
Filed:
Dec. 24, 2010
Hiroshi Tomita, Tokyo, JP;
Yuichiro Hodatsu, Tokyo, JP;
Hiroshi Tomita, Tokyo, JP;
Yuichiro Hodatsu, Tokyo, JP;
Takata Corporation, Tokyo, JP;
Abstract
A ring gearof a pretensionerincludes a plurality of leversand one arc-shaped stopperto allow force transmission members to smoothly move in a pipe, to facilitate setting of a stopper for stopping rotation of a ring gear, and to reduce the cost with a simple structure. During operation of the pretensioner, the leversare sequentially pressed by ballsto rotate a pinionand a spool in a seatbelt retracting direction. When the ring gearrotates by a predetermined rotation amount, an outer peripheral edgeof the stoppercontacts and presses the opposing ball. Since the ballis thereby clamped between the stopperand an inner peripheral surface1 of a pipe I, the ring gearis stopped.