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.

Date of Patent:
May. 13, 2014

Filed:

Mar. 25, 2011
Applicants:

Tetsuya Matsubara, Okazaki, JP;

Shigeru Maeda, Toyota, JP;

Atsuya Takagi, Kariya, JP;

Takuya Ooura, Oobu, JP;

Hajime Nishiguchi, Anjyo, JP;

Motoki Koori, Anjyo, JP;

Masahiro Hayabuchi, Anjo, JP;

Susumu Kato, Anjyo, JP;

Keishi Ohki, Ichikawa, JP;

Kenji Shinohara, Edogawa-ku, JP;

Akio Murakami, Edogawa-ku, JP;

Inventors:

Tetsuya Matsubara, Okazaki, JP;

Shigeru Maeda, Toyota, JP;

Atsuya Takagi, Kariya, JP;

Takuya Ooura, Oobu, JP;

Hajime Nishiguchi, Anjyo, JP;

Motoki Koori, Anjyo, JP;

Masahiro Hayabuchi, Anjo, JP;

Susumu Kato, Anjyo, JP;

Keishi Ohki, Ichikawa, JP;

Kenji Shinohara, Edogawa-ku, JP;

Akio Murakami, Edogawa-ku, JP;

Assignee:

Aisin AW Co., Ltd., Anjo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23P 21/00 (2006.01); H02K 15/02 (2006.01); B21D 28/02 (2006.01); B21D 28/06 (2006.01);
U.S. Cl.
CPC ...
B23P 21/004 (2013.01); H02K 15/02 (2013.01); B21D 28/06 (2013.01); B21D 28/02 (2013.01);
Abstract

A laminated core punching apparatus, configured such that a stator-punching press machine that has a molding die performing a partial punching gradually approaches the shape of the stator core piece. There is a punching die to punching out the stator core piece from a strip-form steel plate, and two stator lamination stations. A rotor-punching press machine and a stator-punching press machine are constructed to operate synchronously. An intermediate loop portion capable of causing a strip-form steel plate to hang down in a loop is provided in order to adjust a length of the strip-form steel plate between the two press machines, and a loop guide portion that guides a loop locus of the strip-form steel plate from above so that the strip-form steel plate does not invert is disposed above the intermediate loop portion to be capable of ascending and descending.


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