Stepping motor for stable control of position of driven body

Details Stepping motor for stable control of position of driven body Stepping motor for stable control of position of driven body

1999-06-28

2000-11-07

LaBalle, Clayton

Electrical generator or motor structure

Dynamoelectric

Rotary

310 89, H02K 3712, H02K 3714, H02K 3700

Patent

active

061441201

ABSTRACT:
A stepping motor is provided with a plate spring for pressing a housing and a rotor against each other. One of the housing and the rotor is provided with a projection. Variations in position, which is inherent in position control by a related art stepping motor, due to lack of a retaining force subsequent to an initial position setting or due to variations in rotating speed of the motor, are eliminated. Thus the motor is suitably used for controlling of the position of, for example, an HID lamp unit.

REFERENCES:
patent: 3626220 (1971-12-01), Niculescu
patent: 3763968 (1973-10-01), Noly
patent: 4465950 (1984-08-01), Guttinger
patent: 4553056 (1985-11-01), Pfister
patent: 5412266 (1995-05-01), Okazaki et al.
patent: 5718259 (1998-02-01), Miyake et al.
patent: 5856718 (1999-01-01), Matsushita et al.

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