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:
Nov. 27, 2007
Filed:
Feb. 08, 2006
Hiroshi Shohara, Toyohashi, JP;
Tatsuji Hayashi, Toyokawa, JP;
Yuji Eguchi, Toyohashi, JP;
Shigeo Hattori, Toyohashi, JP;
Hiroshi Shohara, Toyohashi, JP;
Tatsuji Hayashi, Toyokawa, JP;
Yuji Eguchi, Toyohashi, JP;
Shigeo Hattori, Toyohashi, JP;
Denso Corporation, Kariya, JP;
Abstract
A preparatory molding rollhaving a convex push surfaceis pushed to an outer peripheral surface of a workA while the workA is chucked by a pair of moldsandand is rotated by applying axial propelling force, to bend inward the outer peripheral surface of the work in a radial direction. The work is then chucked by the preparatory molding roll and the upper and lower molds. Next, the preparatory molding roll is moved back and the work is crushed in the axial direction to form a bent portion. A molding rollis pushed to mold the outer shape of the work. A grooved rollis next pushed to the outer peripheral surface of the work and a grooveis formed on the outer peripheral surface.