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:
Nov. 16, 2004
Filed:
Feb. 27, 2003
Naoya Tanikawa, Nagoya, JP;
Aisin Seiki Kabushiki Kaisha, Kariya, JP;
Abstract
A planetary gear mechanism which includes a sun gear having an introduction passage and a communication passage for communicating the introduction passage and an outside of the sun gear, a ring gear, a plurality of pinion gears geared with the sun gear and the ring gear, a plurality of pinion pins rotatable relative to the pinion gears, a carrier having a penetration bore inserted with the pinion pin for supporting the pinion pins so that the pinion gears rotate about the sun gear, a washer provided between the pinion gear and the carrier being inserted with the pinion pin, a slit formed on the carrier formed radially inward relative to the penetration bore, the slit being formed facing the washer, a restriction portion formed on the washer, and an extension portion formed on the washer and extended radially inward relative to a tooth flank of the pinion gear.