| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a child lock mechanism for cassette door, capable of surely locking the cassette door so as to prevent its opening during nonuse, and preventing foreign matters such as toys from entering into a deck main body caused by the prank of a child or the like. SOLUTION: A door opening/closing engaging gear 21 is provided in one side of a front door opener 2 connected to a shaft part 11 in one side of a cassette door 1 to control the opening/closing of the cassette door. Further, A first engaging gear 41 in the tip of a camshaft 4 reaching a loading switch 3 side is engaged with the door opening/closing engaging gear 21, the lower gear part 42b of a second engaging gear 42 having gears in the upper and lower stages of the rear side of the camshaft 4 is engaged with the gear part 31 of the loading switch 3, and the upper gear part 42a is detachably engaged with a gear tooth member 5 moved along a cam groove 32 formed in the surface of the loading switch 3.</p> |
