Interlocking device for controlling clockwise and counterclockwise rotation of a motor
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United States of America Patent
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Mar 23, 2010
Grant Date -
Jun 18, 2009
app pub date -
Dec 14, 2007
filing date -
Dec 14, 2007
priority date (Note) -
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status (Latency Note)
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Abstract
An interlocking device for controlling clockwise and counterclockwise rotation of a motor is connected with a clockwise rotation module and a counterclockwise rotation module at both ends thereof to form a loop by cooperating with a power-supply terminal and an earth terminal. The clockwise rotation module includes a clockwise rotation trigger switch and a clockwise rotation relay. The counterclockwise rotation module includes a counterclockwise rotation trigger switch and a counterclockwise rotation relay. By such arrangements, the loop collision caused by mis-touch can be avoided by a cross connection of the clockwise and counterclockwise rotation relays with the clockwise and counterclockwise rotation trigger switches, thus preventing the man-made careless mistake and maintaining the smoothness of the operation.
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