ROTATIONAL POSITIONING DEVICE
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United States of America Patent
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Issued Date -
Nov 3, 2022
app pub date -
Aug 21, 2020
filing date -
Aug 21, 2020
priority date (Note) -
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status (Latency Note)
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Abstract
Provided is a rotational positioning device capable of positioning a rotational angle at a target angle position with high precision. A rotational positioning device is provided with: a housing; a rotational member which is rotatable about a rotational member axial line and at least a part of which is accommodated in the housing; and at least one sensor installed in the housing. A graduated scale with a plurality of scale marks is formed integrally with the rotational member along the circumferential direction of the rotational member. The at least one sensor detects an angle change amount due to rotation of the rotational member on the basis of the plurality of scale marks. The rotational member is positioned at the target angle position on the basis of the angle change amount.
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