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. 20, 1995
Filed:
Nov. 19, 1993
Applicant:
Inventors:
Motohiko Kitsukawa, Kanagawa, JP;
Atsuo Suzuki, Kanagawa, JP;
Assignee:
Hashimoto Forming Industry Co., Ltd., Kanagawa, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21D / ;
U.S. Cl.
CPC ...
72 17 ; 72166 ; 72168 ; 72 65 ;
Abstract
A method and an apparatus for bending manufacturing of a long workpiece capable of manufacturing different sections of the workpiece in different bending radiuss, while preventing a buckling deformation in manufacturing small bending radius sections and a lowering of a productivity. A speed of sending out the workpiece is controlled to be lower for sections requiring larger bending per unit length, so as to prevent the buckling deformation, and to be higher for sections requiring smaller bending per unit length, so as to prevent the lowering of the productivity.