Dental handpiece control apparatus
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United States of America Patent
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Nov 28, 2017
Issued Date -
N/A
app pub date -
Jan 11, 2013
filing date -
Jan 16, 2012
priority date (Note) -
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Abstract
A dental handpiece control apparatus including: a relay 17 that switches a polarity of a voltage applied to a motor 20, and thereby switches a rotation direction of the motor 20 to forward rotation and backward rotation, the motor 20 being incorporated in the dental handpiece to rotate a cutting tool (a file) mounted to the dental handpiece; and a control section 11 that controls the switching of the voltage polarity by the relay 17 based on a rotation angle θF for forward rotation and a rotation angle θR for backward rotation of the motor 20, the rotation angle θF and the rotation angle θR being associated with state information of the file.
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