Electrical generator or motor structure – Dynamoelectric – Reciprocating
Reexamination Certificate
2007-04-17
2007-04-17
Nguyen, Tran (Department: 2834)
Electrical generator or motor structure
Dynamoelectric
Reciprocating
C310S012060, C310S017000
Reexamination Certificate
active
11086918
ABSTRACT:
A linear actuator has improved output performance and can be assembled with high precision. The linear actuator includes: a yoke part where yoke components, where a hollow is formed between an outer circumferential surface of a first yoke provided on one side of a ring-shaped permanent magnet and an inner circumferential surface of a second yoke provided on another side of the ring-shaped permanent magnet, are combined on an outer circumference of a guide pipe with end surfaces of the first yokes and/or end surfaces of the second yokes being in contact and magnetic poles formed in facing yoke surfaces having a same polarity; and a shaft-linked part where a coil bobbin, which is disposed in the hollow of the yoke part and around which a coil has been wound, and a shaft inserted into the guide pipe are linked. By switching the direction of the current flowing in the coil, relative movement between the yoke part and the shaft-linked part is reciprocally caused in an axial direction.
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Nguyen Tran
Shinano Kenshi Kabushiki Kaisha
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