Torque sensor and method of manufacturing the same
AssigneeHonda Motor Co., Ltd.
InventorsKatsuji Watanabe, Yasuo Shimizu, Atsuhiko Yoneda, Tsunehiko Fukatsu
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Abstract
The torque sensor includes a plurality of coil units having a substantially cylindrical shape, the coil units including a plurality of detection coils arranged to face a magnetic characteristic change portion formed on a rotary shaft. The coil units include a first coil unit and a second coil unit, and the first coil unit and the second coil unit are disposed in the axial direction of the shaft. The first coil unit and the second coil unit are fixed in an integrally molded resin. Thereby, there is provided a torque sensor having a high productivity and an easy configuration and a method of manufacturing the torque sensor.
Claims4
A method of manufacturing a torque sensor comprising a magnetic characteristic change portion formed on a rotary shaft, a plurality of coil units having a substantially cylindrical shape, the plurality of coil units including first and second coil units, each including a detection coil arranged to face the magnetic characteristic change portion, the method using a centering rod and a die set including a base die and other dies, the method comprising the steps of:
- fitting internal members including the first coil unit and the second coil unit on the centering rod so as to dispose the internal members on the base die;
- setting the other dies on the base die;
- and
- molding a resin, in which the first coil unit and the second coil unit are fixed.
Dependencies are inferred from the claim text.