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. 26, 2007
Filed:
Apr. 02, 2004
Jiro Maruyama, Tokyo, JP;
Motoyuki Fujiwara, Tokyo, JP;
Nobuyuki Mabuchi, Tokyo, JP;
Koji Etoh, Tokyo, JP;
Jiro Maruyama, Tokyo, JP;
Motoyuki Fujiwara, Tokyo, JP;
Nobuyuki Mabuchi, Tokyo, JP;
Koji Etoh, Tokyo, JP;
Fuji Jukogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
The present invention provides a process and an apparatus for the preparation of a motor coil by which a longitudinally wound motor coil, so called, can be easily prepared. First, a molded productcomprising a column part, and a fin partprojected in the form of flat plate from an outer peripheral surfaceA,B,C,D of the column part to an outer side in a radial direction of the column part and helically continuing in an axis direction of the column part at predetermined intervals along the outer peripheral surface of column part is prepared. The column partof the first molded product is punched out in an axis direction of the column part with retaining the fin partto remove the column part, and the fin parthaving helical shape left after the removal is coated with an insulating film. Then both sides of the fin partin a direction F punching out the column partare pressurized to deform the fin partsuch that flat plate portions of the fin partare superposed on one another.