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:
Jan. 27, 1998
Filed:
Apr. 08, 1996
Applicant:
Inventors:
Tadashi Sasahara, Fujisawa, JP;
Hideyuki Morioka, Fujisawa, JP;
Assignee:
Oiles Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21D / ;
U.S. Cl.
CPC ...
72381 ; 72304 ; 72315 ; 724529 ; 83635 ;
Abstract
A pressing cam die includes a cam slide having a cam surface; a supporting device for supporting the cam slide onto an upper die such that the cam slide is movable in a downwardly inclined direction; a coil spring for urging the cam slide toward its initial position; and a cam driver having a cam surface which is slidably brought into surface contact with the cam surface of the cam slide. The supporting device has a base and a round guide bar which is attached to a front wall portion and a rear wall portion of the base. The coil spring is wound around the guide bar and is disposed concentrically with the guide bar.