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US 6,445,096 B1Granted
Spindle motor
AssigneeOlympus Optical Co., Ltd.
InventorsShoichi Saito, Toru Wakabayashi
Life of this patent
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Abstract
This spindle motor has a base plate, a stator mounted on the base plate, a bearing provided on the base plate, a rotating shaft rotatably provided on the bearing, and a rotor fixed to the rotating shaft. The rotor is formed of a metallic magnetic substance and resin and is fixed to the rotating shaft at the magnetic substance, and a field magnet fixed to the rotor. The field magnet is pressed into and fixed to the rotor at a resin section of the rotor.
Claims7
A spindle motor comprising:
- a base plate;
- a stator mounted on said base plate;
- a bearing provided on said base plate;
- a rotating shaft rotatably provided on said bearing;
- a rotor fixed to said rotating shaft, wherein said rotor is formed of a metallic magnetic substance section and a resin section and is fixed to said rotating shaft at the magnetic substance section;
- and
- a field magnet fixed to said rotor, wherein said field magnet is pressed into and fixed to said rotor at the resin section of said rotor.
4 more elements
Dependencies are inferred from the claim text.