Multi-directional rolling member sensor switch
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United States of America Patent
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Dec 23, 2014
Grant Date -
Feb 6, 2014
app pub date -
Jul 31, 2012
filing date -
Jul 31, 2012
priority date (Note) -
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status (Latency Note)
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Abstract
A sensor switch includes a housing having a receiving chamber defined by top and bottom walls and a multi-sided chamber surrounding wall, and a light emitter and a light receiver disposed outwardly of the surrounding wall at two opposite positions. The surrounding wall is formed with two light passage holes which are aligned respectively with the light emitter and the light receiver to permit a light path to extend therethrough. The bottom wall has a bottom inclined wall face that forms an included angle of from −80 degrees to 80 degrees with respect to a first axis. A rolling member is movable in the receiving chamber to alternately block and unblock the light path when moving to and fro on the bottom wall.
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