| 摘要 |
<P>PROBLEM TO BE SOLVED: To switch a chip air circuit to an ON-state when using both water and chip air and to an OFF-state when using only water. <P>SOLUTION: An opening/closing switching valve 4 is provided between a connection part 23 of the chip air circuit side of a handpiece body 2 and the chip air circuit 202 so as to perform an opening/closing operation on the surface of the handpiece body 2. Switching to the ON-state for causing the chip air to pass through from the connection part 23 of the chip air circuit side to the chip air circuit is performed by the opening operation of the opening/closing switching valve 4, and switching to the OFF-state of stopping the chip air and not causing it to pass through from the connection part 23 on the chip air circuit side to the chip air circuit is performed by the closing operation of the opening/closing switching valve 4. <P>COPYRIGHT: (C)2013,JPO&INPIT |
