Stepping motor

Details Stepping motor Stepping motor

1997-04-21

2000-04-04

Ramirez, Nestor

Electrical generator or motor structure

Dynamoelectric

Rotary

310257, 310 89, 310 42, H02K 100

Patent

active

060465190

ABSTRACT:
A stepping motor having high-precision torque formation and stepping angle is able to be produced at a low cost. Cylindrical elastic magnetic members, which cover a first and second set of yokes and have an inner diameter smaller than the outer diameter of the yokes, readily come in tight contact with the yokes and form strong magnetic circuits. The first and second sets of yokes are integrally formed into a bobbin through a nonmagnetic member. Pole teeth of the first set of yokes and pole teeth of the second set of yokes are arranged by shifting at a given angle to each other in the peripheral direction.

REFERENCES:
patent: 3508091 (1970-04-01), Kavanaugh
patent: 4012652 (1977-03-01), Gilbert
patent: 4074159 (1978-02-01), Robison
patent: 4471246 (1984-09-01), Paillet
patent: 4695419 (1987-09-01), Inariba
patent: 4985669 (1991-01-01), Smith
patent: 5187400 (1993-02-01), Kurata
patent: 5698918 (1997-12-01), Shinoda et al.

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