PURPOSE: To enable to manufacture the lock mechanically with low cost, by supporting the door to the main body freely rotatably, forming hook to the door, and providing the lock arm which latches with the hook at the final position of door closing, to the main body.
CONSTITUTION: When the door 1 is turned, the tip of the lock arm 22 enters the lock piece 20 and touches with the cushion 21. Further, when the door 1 is further turned, the lock arm 22c goes backward, and the hook 20a of the lock piece 20 latches with the latch 22c1 of the lock arm 22c. Further, when the door 1 is at vertical state, the latchet plate 22f and the slide plate 22b are latched and locked. Accordingly, the door 1 is locked in the condition that it covers the concave of the front panel. Further, to unlock the door lock, the upper end of the door 1 is pushed to further drive the lock arm 22c. The lock between the slide plate 22b and the latchet plate 22f is unlocked to release the latch.
YAZAKI KOUICHI
AYUKAWA YUKITADA
