Outer-rotor type spindle motor with a reduced thickness in the a

Details Outer-rotor type spindle motor with a reduced thickness in the a Outer-rotor type spindle motor with a reduced thickness in the a

1994-05-19

1995-08-15

Dougherty, Thomas M.

Electrical generator or motor structure

Dynamoelectric

Rotary

H02K 700

Patent

active

054422477

ABSTRACT:
In an outer-rotor type spindle motor: a front-end portion of a spindle (4) forming a stationary member passes through a central portion of a hub plate (7c) (onto which a disk (11) is loaded) of a rotor yoke (6) forming a rotating member; and, the front-end portion having been passed through the central portion of the hub plate (7a) of the rotor yoke (6) forms a head portion (4c) which is formed into a semispherical shape having been obliquely cut.

REFERENCES:
patent: 3584159 (1971-06-01), Tawara et al.
patent: 5214326 (1993-05-01), Yonei
patent: 5252871 (1993-10-01), Inoue
patent: 5317225 (1994-05-01), Miyaji et al.

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