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. 20, 2012
Filed:
Jul. 02, 2010
Tsunenari Futagi, Utsunomiya, JP;
Nobuyuki Kakiya, Tochigi-ken, JP;
Tadahisa Akiyama, Utsunomiya, JP;
Ikuo Kato, Kumagaya, JP;
Akitoshi Uchiumi, Utsunomiya, JP;
Tsunenari Futagi, Utsunomiya, JP;
Nobuyuki Kakiya, Tochigi-ken, JP;
Tadahisa Akiyama, Utsunomiya, JP;
Ikuo Kato, Kumagaya, JP;
Akitoshi Uchiumi, Utsunomiya, JP;
Honda Motor Co., Ltd., Tokyo, JP;
Abstract
A method of forming a hollow curled portion on a hollow body, the curled portion being oriented from one end to the other end of the hollow body. The method includes a bending step of curving an end of the hollow body toward another end of the hollow body, thereby forming a curled portion, an ironing step of ironing the curled portion with a die, and a recurving step of stopping the die from ironing the curled portion and allowing the curled portion to recurve under its own resiliency in a direction opposite to the direction in which the end of the hollow body has been curved. The ironing step and the recurving step are repeated.