| 摘要 |
<p>PURPOSE:To improve the reliability and the safety by providing an electric connection means with a cover to prevent the damage and the fault of the electric connecting means due to penetration of dust and dirt. CONSTITUTION:A cover 511a is provided in a part of one of side surfaces of a recessed part 511 of a main body, and a flat spring is provided in the cover 511a. The cover 511a is energized in the closed state by the flat spring and can be turned around a shaft provided at a prescribed position. An electrode 35 consisting of an electrode pin 35a is provided in the cover 511a. An attachment detecting switch is provided in the cover 511a. When a slave machine is connected to the main body, the slave machine pushes up the cover 511a and is connected. When the slave machine is not connected, the cover 511a is energized by the flat spring and is closed to prevent penetration of dirt and dust. Thus, the damage and the fault due to this penetration are prevented.</p> |
