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:
Jun. 22, 2010
Filed:
Apr. 26, 2005
Kazuhiro Yamamoto, Ritto, JP;
Masao Shimura, Osaka, JP;
Yoshiro Kuzumi, Kanagawa, JP;
Masahiko Hirose, Osaka, JP;
Masaaki Hashimoto, Osaka, JP;
Takahiro Tanaka, Osaka, JP;
Katsutoshi Nishimura, Osaka, JP;
Kazuhiro Yamamoto, Ritto, JP;
Masao Shimura, Osaka, JP;
Yoshiro Kuzumi, Kanagawa, JP;
Masahiko Hirose, Osaka, JP;
Masaaki Hashimoto, Osaka, JP;
Takahiro Tanaka, Osaka, JP;
Katsutoshi Nishimura, Osaka, JP;
JTekt Corporation, Osaka, JP;
Oiles Corporation, Tokyo, JP;
Abstract
A method of manufacturing a rack guide base body wherein a cavity () is formed which has a pair of semicylindrical convex surfaces (and) and a pair of flat surfaces () each located between the semicylindrical convex surfaces (and), and has a recessed surface () located on one axial end portion side inwardly of the semicylindrical convex surfaces (and) and the flat surfaces () and a cylindrical surface () located on the other axial end portion side inwardly of the semicylindrical convex surfaces (and) and the flat surfaces (); a hollow portion () is formed for allowing the cavity () to communicate with a hollow portion () at one flat surface () and with a hollow portion () at the other flat surface (); a rack guide base body () is die cast by forcing molten metal of aluminum from the hollow portion () into the cavity (); and runners () integrally joined to flat surfaces () of the rack guide base body () formed by the respective flat surfaces () are cut off.