Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1993-05-04
1994-05-03
Stephan, Steven L.
Electrical generator or motor structure
Dynamoelectric
Rotary
310 49R, H02K 706
Patent
active
053090411
ABSTRACT:
A step motor comprising two sets of annularly arranged electromagnets and which are disposed in left and right frame bodies respectively in bilateral symmetry, a wobble disc of magnetic body arranged between the sets of electromagnets, a supporting shaft which is pivotally coupled to the center of the light surface of the wobble disc and fixedly coupled to a bearing portion at the center of the right frame body, an output shaft which is fixedly coupled to the center of the left surface of the wobble disc by way of a universal joint and rotatably supported by a bearing portion at the center of the left frame body, a crown gear fixedly arranged on the magnetically permeable armatures of the right set of electromagnets and a crown gear fixedly arranged on the right surface of the wobble disc at the outer circumferential portion thereof which confronts the crown gear on the right set of electromagnets and has teeth different in number from those of the crown gear. The output shaft can produce a high torque at a low speed by successively energizing the annularly arranged electromagnets thereby successively attracting the wobble disc to wobble it and converting the wobbling into turning force by way of the two crown gears having teeth different in number meshing with each other.
REFERENCES:
patent: Re29411 (1977-09-01), Newell
patent: 3539847 (1970-11-01), Gifford
patent: 4330725 (1982-05-01), Hintz
patent: 4906881 (1990-03-01), Knight
patent: 5142932 (1992-09-01), Moya et al.
Asai Tsutomu
Kawai Teruo
Asai Tsutomu
Asaoka Keiichiro
Kawai Teruo
Nguyen Matthew
Nihon Riken Kabushiki Kaisha
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