Title:
METHOD OF MANUFACTURING A SMALL-SIZED MOTOR
Document Type and Number:
WIPO Patent Application WO/2004/084384
Kind Code:
A1
Abstract:
A method of manufacturing a small-sized motor, comprising the steps of assembling, as a rotor, laminated core (7), a winding (6), a commutator (5), and a thrust brush (8) integrally with a shaft (11), or assembling, as a small-sized motor, a case (1), an end bell (4) press-fitted to the opening part of the case (1), and a rotor integrally with each other, and then cutting or grinding the tip end part of the shaft of the rotor in a non-circular shape over a specified length for mechanical connection to a device to be driven, whereby the method of manufacturing a small-sized motor having a D-cut formed shaft is provided, a judgment on the necessity of the D-cut is made possible after the latter half of a motor assembly process, inventory control of a motor with D-cut formed shaft is eliminated, the necessity of arranging the shaft in the same direction is eliminated when a rotor laminated core is press-fitted onto the shaft, and cutting chips are prevented from occurring when a thrust bush is press-fitted onto the shaft.
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Inventors:
MABUCHI TAKAICHI (JP)
Application Number:
PCT/JP1999/001960
Publication Date:
September 30, 2004
Filing Date:
April 13, 1999
Export Citation:
Assignee:
MABUCHI TAKAICHI (JP)
International Classes:
H02K15/14; F16D1/06; F16D1/112; H02K7/00; H02K15/00; H02K23/58; (IPC1-7): H02K15/14
Foreign References:
| JPH07255153A | 1995-10-03 | |||
| JPS56107763A | 1981-08-26 |
Attorney, Agent or Firm:
Morita, Hiroshi (Sankyo Central Plaza Building 5F 11-8,
Nishi-Nippori 5-chom, Arakawa-ku Tokyo, JP)
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