| 摘要 |
PURPOSE:To surely prevent the high frequency wave from leaking during the time when a door is open by a structure wherein a switch is actuated through a lever by a hook interlocking with a pushbotton action in the titled apparatus, the door of which is open by a pushbotton action. CONSTITUTION:By pushing a botton 1, a hook 2 is disengaged from the engaging part 4 of a bracket 5 and simultaneously the catching part 6b of a lever 6 is forcibly pushed up with the back 2a of a hook 2. Consequently, a secondary interlocking switch 7 is turned OFF and a monitor switch 8 is turned ON. Accordingly, high frequency oscillation is stopped and at the same time, even if the secondary interlocking switch 7 has some abnormality, current is prevented from flowing in a circuit, because the monitor switch 8 is ON. Due to the structure as mentioned above, the high frequency wave can be surely prevented from leaking during the time when a soor is open. |
