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:
Sep. 28, 2010
Filed:
Apr. 22, 2008
Hiroyasu Sakamoto, Obu, JP;
Naoto Agata, Toyoake, JP;
Hideo Kuroda, Nishio, JP;
Toshio Kamio, Gamagori, JP;
Souhei Komiyama, Toyohashi, JP;
Hiroyasu Sakamoto, Obu, JP;
Naoto Agata, Toyoake, JP;
Hideo Kuroda, Nishio, JP;
Toshio Kamio, Gamagori, JP;
Souhei Komiyama, Toyohashi, JP;
DENSO CORPORATION, Kariya, JP;
Abstract
A power transmission apparatus is disclosed. A pulley is journalled through a ball bearing on the outer periphery of a bearing support portion arranged on a housing, and a metal ring is fitted on the inner periphery of the pulley. The outer ring of the ball bearing is press-fitted into the inner periphery of the metal ring, and a punch is forcibly pushed into a front-side end surface of the ring. In this way, punched holes each having a sectional area progressively increased from the rear to front side are formed, and the portions of the metal ring near to the inner periphery than the punched holes are pushed out and caulked. Thus, caulked portions are formed to fixedly caulk the outer ring.