Metal working – Method of mechanical manufacture – Electrical device making
Reexamination Certificate
2007-06-26
2007-06-26
Trinh, Minh (Department: 3729)
Metal working
Method of mechanical manufacture
Electrical device making
C029S596000, C029S605000, C029S609000, C310S049540, C310S216006
Reexamination Certificate
active
10427902
ABSTRACT:
An iron core of a rotating-electric machine and a manufacturing method for the same permit a uniform curvature to be easily obtained over an entire circumference of the iron core. The iron core has laminated magnetic plate strips, a cylindrical core proximal portion, a plurality of teeth projecting in a substantially radial direction from the core proximal portion, and slots for accommodating a winding that are located between the teeth adjacent to each other. The iron core is fabricated by curving both end portions of a substantially hexahedral laminate so that the core proximal portion obtains a predetermined curvature, forming the entire laminate into a cylindrical shape by wrapping it around a cylindrical core member so that distal ends of the teeth project from the core proximal portion, and joining both end portions of the laminate.
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Adachi Katsumi
Fujita Masahiko
Harada Yoshihiro
Oketani Naohiro
Mitsubishi Denki & Kabushiki Kaisha
Trinh Minh
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