| 摘要 |
<p>PURPOSE:To eject a cassette softly to prevent the damage, by opening and closing a cassette case main body by one of gears which are interlocked with a motor through a slip mechanism and moving a cassette holder vertically by the other. CONSTITUTION:A pair of left and right gears 1 and 2 for ascent and descent are driven by a motor which is not shown in figure and are slipped with a certain load or more. A lock member 3 has one end supported axially on a shaft 4 and has the other supported axially at an eccentric point 5 of the gear 1, and an attracting part 6 is locked or unlocked by a plunger 7. A gear 11 is driven by a motor, wich is not shown in figure, to incline a case main body 15 forward with rothation shafts 19 and 20 as the center through a belt 12, a sliding gear 14 for a lever 13, and a gear 21. First, gears 1 and 2 for ascent and descent cannot be rotated by slipping due to the lock member 3; however, when the case main body is inclined in a certain degree, a switch 28 is turned on to disengage the lock, and gears 1 and 2 are turned, and ascending and descending rods 8 and 9 press a cassette holder upward. Thus, a cassette is ejected softly to prevent the damage.</p> |
