Dental treating apparatus

摘要

The present invention is directed to a dental treating apparatus including: a hand piece; a power source (micro motor); a driving unit (motor driver); and a controller. The driving unit drives the cutting tool so as to be switchable between first driving in which the cutting tool is driven clockwise and second driving in which the cutting tool is driven counterclockwise. When a rotation direction in which the cutting tool cuts an object to be cut is defined as normal rotation and a rotation direction opposite to the normal rotation is defined as reverse rotation, the controller sets the first driving as driving for the normal rotation when a first cutting tool rotated clockwise is held on the head unit, and sets the second driving as the driving for the normal rotation when a second cutting tool rotated counterclockwise is held on the head unit.

主权项

1. A dental treating apparatus, comprising:
a hand piece for drivably holding a cutting tool selected from one of a clockwise cutting tool and a counterclockwise cutting tool, said clockwise cutting tool includes a blade configured to cut when rotated clockwise and said counterclockwise cutting tool includes a blade configured to cut when rotated counterclockwise; a power source for driving said cutting tool; a driving unit for driving said cutting tool so as to be switchable between first driving in which said cutting tool is driven clockwise as directed toward a tip end of said cutting tool and second driving in which said cutting tool is driven counterclockwise as directed toward the tip end of said cutting tool; a controller for, when a rotation direction in which said cutting tool cuts an object to be cut is defined as normal rotation and a rotation direction opposite to said normal rotation is defined as reverse rotation, setting either said first driving or said second driving as driving for said normal rotation, based on said cutting tool being held on said hand piece, wherein said controller sets said first driving as the driving for said normal rotation when said clockwise cutting tool is held on said hand piece, and sets said second driving as the driving for said normal rotation when said counterclockwise cutting tool is held on said hand piece; a load detecting unit for detecting a load applied to said cutting tool being driven; and a determining unit that processes a driving information to determine whether said cutting tool being held on said hand piece is said clockwise cutting tool or said counterclockwise cutting tool by using said load detected by said load detecting unit as said driving information and comparing said load detected by said load detecting unit on said cutting tool generated when said cutting tool is driven with said first driving to cut said object to be cut and said load detected by said load detecting unit on said cutting tool generated when said cutting tool is driven with said second driving to cut said object to be cut.