Rotation detecting apparatus
First Claim
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1. A rotation detecting apparatus comprising:
- a casing;
a first wheel mechanism disposed inside said casing;
rotation detecting means for detecting rotation of said first wheel mechanism;
a second wheel mechanism for measurement disposed at said casing such that a periphery of said second wheel mechanism does not protrude from an outer surface of said casing; and
a moving member for moving said second wheel mechanism to such a location that rotation thereof is transmitted to said first wheel mechanism and part of said second wheel mechanism is exposed from said outer surface of said casing.
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Abstract
A first wheel mechanism and rotation detecting means for detecting rotation of the first wheel mechanism are provided within a casing. A second wheel mechanism for measurement is movable provided at the casing. The second wheel mechanism is located in a non-detecting mode at such a place as not to protrude outside the casing. When moved by a moving member, however, the second wheel mechanism partially protrudes from the casing and the rotation of the second wheel mechanism can be transmitted to the first wheel mechanism, whereby the rotation of the second wheel mechanism can be detected by the rotation detecting means.
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Citations
22 Claims
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1. A rotation detecting apparatus comprising:
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a casing; a first wheel mechanism disposed inside said casing; rotation detecting means for detecting rotation of said first wheel mechanism; a second wheel mechanism for measurement disposed at said casing such that a periphery of said second wheel mechanism does not protrude from an outer surface of said casing; and a moving member for moving said second wheel mechanism to such a location that rotation thereof is transmitted to said first wheel mechanism and part of said second wheel mechanism is exposed from said outer surface of said casing. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A rotation detecting apparatus comprising:
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a watch casing having a timing display section provided at a front thereof; a first wheel mechanism disposed inside said watch casing; rotation detecting means for detecting rotation of said first wheel mechanism; a second wheel mechanism for measurement disposed at said watch casing such that a periphery of said second wheel mechanism does not protrude from an outer surface of said watch casing; and a moving member for moving said second wheel mechanism to such a location that rotation thereof is transmitted to said first wheel mechanism and part of said second wheel mechanism is exposed from said outer surface of said watch casing. - View Dependent Claims (8, 9, 10, 11, 12, 13)
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14. A rotation detecting apparatus comprising:
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a casing; a first wheel mechanism disposed inside said casing; rotation detecting means for detecting rotation of said first wheel mechanism and outputting a signal for each predetermined rotational angle; a second wheel mechanism for measurement disposed at said casing such that a periphery of said second wheel mechanism does not protrude from an outer surface of said casing; a moving member for moving said second wheel mechanism to such a location that rotation thereof is transmitted to said first wheel mechanism and part of said second wheel mechanism is exposed from said outer surface of said casing; distance data computing means for acquiring data of an amount of rotation of said second wheel mechanism from said signal from said rotation detecting means and providing distance data corresponding to said data of said amount of rotation; and display means for display said distance data acquired by said distance data computing means. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22)
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Specification