Stepping motor

Details Stepping motor Stepping motor

2007-10-02

2007-10-02

Lam, Thanh (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Rotary

C310S089000

Reexamination Certificate

active

11253578

ABSTRACT:
A stator is press fitted into a recess of a casing. The recess has a chamfered portion. The chamfered portion is arranged between an inlet opening end of the recess and a bottom of the recess in such a manner that a width of the recess is progressively increased along the chamfered portion from a bottom side toward an inlet opening end side of the recess. The chamfered portion has a plurality of slant surfaces, which are arranged one after another in the press fitting direction of the stator. Angles of the plurality of slant surfaces with respect to the press fitting direction of the stator decrease from the inlet opening end side of the recess toward the bottom side of the recess.

REFERENCES:
patent: 4782353 (1988-11-01), Ogihara et al.
patent: 6331741 (2001-12-01), Suzuki
patent: 6989615 (2006-01-01), Abe et al.
patent: 7071593 (2006-07-01), Matsushita et al.
patent: 2003/0111918 (2003-06-01), Nishikawa et al.
patent: 2004/0178685 (2004-09-01), Abe et al.
patent: 2005/0057105 (2005-03-01), Kasahara
patent: A-2003-111379 (2003-04-01), None
patent: A-2005-024501 (2005-01-01), None

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