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. 17, 1992
Filed:
Apr. 24, 1991
Shinichi Sakanishi, Kiyose, JP;
Kuroda Precision Industries Ltd., Kawasaki, JP;
Abstract
A die for manufacturing a laminated core for a rotor or a stator for an electric motor or a generator including rotary stacking and a skewing using a rotary die to stack the thin iron plates punched to a predetermined shape. Rotation of the crank shaft of the press is converted into a rotary stacking angle to take it out from the indexing device. Rotation of the crank shaft of the press is converted into a predetermined corresponding skew angle from the indexing device through a crank mechanism to take it out of the gear device. An amount of rotation having outputs from the indexing device and from the gear device combined with each other is taken out at the output shaft through a rotary friction transmitting mechanism and a rotation of this output shaft is applied to the rotary die.