| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an accessory connecting part which can easily be attached and detached. <P>SOLUTION: The accessory connecting part is composed of a pair of an annular recess 31 and a protrusion 32 which have magnets 34, 35, respectively, so as to be mutually pulled to each other by magnetic forces in the long axial direction. Then, in the accessory connecting part, a pin 311 is arranged in the recess 31, an edge 321 engaged with the pin 311 is formed at the upper external face of the protrusion 32, the recess 31 and the protrusion 32 are pulled to each other by the magnetic forces, the pin 311 is moved along the edge 321 by the magnetic forces and guided to a stable position 323 located at the terminal end of the edge 321 when the pin 311 contacts with an optional position of the edge 321, and there is arranged a fixed part 43 which inhibits the movement of the pin 311 when the pin 311 moves to the long axial direction from the stable position 323. <P>COPYRIGHT: (C)2013,JPO&INPIT |
