Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Ryouichi Tokioka0
Date of Patent
April 13, 2010
0Patent Application Number
118085250
Date Filed
June 11, 2007
0Patent Primary Examiner
Patent abstract
A yoke for universal joint includes a cylindrical base, and a pair of arms extending from an end of the base in parallel to a center axis of the base. Each of the arms is formed with a support hole for supporting a corresponding trunnion of a cross shaft via a bearing. The support hole of each arm has a center axis extending in a direction orthogonal to the center axis of the base. A relief portion including a concave curved surface is formed at the end of the base. The concave curved surface of the relief portion has a center of curvature located at place offset from a center of a joint 1 toward a distal end of the arm.
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