| 摘要 |
<p>PROBLEM TO BE SOLVED: To suppress an amount of deformation of a part operated by a user when anchoring an attachment/detachment member to a dental apparatus.SOLUTION: When a connector 400 is fitted to a motor unit 200, a rotary member 420 rotates in a direction shown by an arrow 2B in (A), by a user and against energization force by a coil spring. Then, the connector 400 advances towards the motor unit 200, an insertion part 410 is inserted into the interior of a connection object part 230, or the connection object part 230 advances between the insertion part 410 and a cylindrical member 420. Subsequently, by energization force of the coil spring, the cylindrical member 420 rotates in a direction shown by an arrow 2C. Thereby, a metal ball inside the cylindrical member 420 enters into a peripheral groove 231 formed on the outer peripheral surface of the connection object part 230 to anchor the motor unit 200 and the connector 400 to each other.</p> |
