| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an electronic appliance for which an extension board can be attached and detached without disassembling a case body and a connector for external connection provided on the extension board can be used from a back surface side of the equipment even after assembly. SOLUTION: In the state of housing an extension unit 31 provided with the extension board 51 inside an opening 22 of the case body, operation arms 44a and 44b of an operation means 41 are in a position relation corresponding to a rail omission part 25b of a guide rail. At the time of turning an operation knob in a mounting direction, projection pieces 34a and 35a of a case are pushed down by one operation arm, and an extension side connector 52 is connected to a mother side connector 62. At the time of turning the operation knob in a release direction, the projection pieces of the case are pushed up by the other operation arm, and the extension side connector is detached from the mother side connector.</p> |
