ROTARY ACTUATOR AND INPUT DEVICE USING THE SAME
First Claim
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1. A rotary actuator comprising:
- a roller having a center axis, the roller having a center shaft protruding along the center axis;
a bearing for supporting the center shaft of the roller to allow the roller to rotate about the center axis;
a ring magnet fixed to the center shaft of the roller, the ring magnet being alternately magnetized to an S-pole and an N-pole with predetermined angular intervals;
an elastic member provided between the center shaft of the roller and the bearing, the elastic member having a ring shape; and
a fixed magnet facing the ring magnet.
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Abstract
A rotary actuator includes a roller having a center shaft protruding along a center axis, a bearing for supporting the center shaft of the roller to allow the roller to rotate about the center axis, a ring magnet fixed to the center shaft of the roller, an elastic member having a ring shape provided between the center shaft of the roller and the bearing, and a fixed magnet facing the ring magnet. The ring magnet is alternately magnetized to an S-pole and an N-pole with predetermined angular intervals. This rotary actuator has a simple structure and operates with a preferable operation feeling.
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Citations
2 Claims
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1. A rotary actuator comprising:
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a roller having a center axis, the roller having a center shaft protruding along the center axis; a bearing for supporting the center shaft of the roller to allow the roller to rotate about the center axis; a ring magnet fixed to the center shaft of the roller, the ring magnet being alternately magnetized to an S-pole and an N-pole with predetermined angular intervals; an elastic member provided between the center shaft of the roller and the bearing, the elastic member having a ring shape; and a fixed magnet facing the ring magnet.
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2. An input device comprising:
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a roller having a center axis, the roller having a center shaft protruding along the center axis; a bearing for supporting the center shaft of the roller to allow the roller to rotate about the center axis; a ring magnet fixed to the center shaft of the roller, the ring magnet being alternately magnetized to an S-pole and an N-pole with predetermined angular intervals; an elastic member provided between the center shaft of the roller and the bearing, the elastic member having a ring shape; a fixed magnet facing the ring magnet, and a magnetic detector facing the ring magnet.
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Specification