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:
Feb. 23, 2016
Filed:
Aug. 25, 2011
Yoshiharu Nakamura, Hamamatsu, JP;
Akihiro Yamashita, Hamamatsu, JP;
Yuji Otsuka, Hamamatsu, JP;
KABUSHIKI KAISHA F.C.C., Shizuoka, JP;
Abstract
A method for forming an undercut portion of a formed article formed by plastically deforming a plate-shaped workpiece and a method for manufacturing a formed article having an undercut portion are provided. In these methods, the undercut portion is formed by press working performed using a punch and a die. These methods make the forming work more economical and more efficient. An outer portion of a plate member(plate-shaped workpiece) located outward of a portion where an inwardly inclined portion(undercut portion) is to be formed is bent by an angle determined such that an undercut surfacewhich constitutes the inwardly inclined portionbecomes parallel to the pressing direction of a punch. In addition, a peripheral wall portioninclined by an angle corresponding to the bending angle is formed on the outer portion. The bent portion of the plate memberhaving the inclined peripheral wall portionis bent back in the opposite direction so as to cause the inwardly inclined portionto rise up from the surface of the plate member