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. 01, 2010
Filed:
Nov. 29, 2006
Toshimitsu Suzuki, Saitama, JP;
Yoshitaka Seki, Saitama, JP;
Jun Hariu, Saitama, JP;
Shin Watanabe, Saitama, JP;
Koichi Ota, Saitama, JP;
Satoshi Hirayanagi, Saitama, JP;
Takashi Doi, Saitama, JP;
Yoshiyuki Kurayoshi, Saitama, JP;
Toshimitsu Suzuki, Saitama, JP;
Yoshitaka Seki, Saitama, JP;
Jun Hariu, Saitama, JP;
Shin Watanabe, Saitama, JP;
Koichi Ota, Saitama, JP;
Satoshi Hirayanagi, Saitama, JP;
Takashi Doi, Saitama, JP;
Yoshiyuki Kurayoshi, Saitama, JP;
Honda Motor Co., Ltd., Tokyo, JP;
Abstract
A mold and a die-cast manufacturing method for the die-cast product, in which a main frame which is contiguously formed with a head pipe constitutes a portion of a hollow light-weight-metal-made vehicle-body frame. The mold includes a core for forming an inner space of the hollow vehicle-body frame. The core includes a core body and a plurality of splints mounted on the core body, the splints having approximately elliptical cross-sectional shapes. The long axes direction of ellipses of the splints are set parallel to a mold split surface of the mold. As a result, measurement of the positional accuracy of the splints is facilitated, a clearance between the splint and the mold can decrease by increasing the dimensional accuracy of splint mounting portions of the mold based on sizes of the splints, and the frame can be manufactured with high dimensional accuracy.