US Patent 7736257 Differential gear apparatus for vehicle

Patent 7736257 was granted and assigned to JTEKT on June, 2010 by the United States Patent and Trademark Office.

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Is a

Patent

Patent attributes

Current Assignee

JTEKT

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

77362570

Patent Inventor Names

Shinichiro Nakajima0

Date of Patent

June 15, 2010

Patent Application Number

115716830

Date Filed

July 8, 2005

Patent Primary Examiner

‌

Roger L Pang

Patent abstract

Pinion gears are rotatably carried within pinion gear receiving openings formed in a differential case. The inner pinion gear holding surfaces of the receiving openings are enlarged inwardly to form extensions to hold not only portions of the pinion gears that are located outwardly and that are to be held, but also part of inner meshing portions of the pinion gears that are disposed in meshing engagement with side gears in an overlapping manner. This construction prevents a tilting of the pinion gears and improves the durability.