| 摘要 |
<p>PURPOSE:To enable a tape cassette to be ejected even when a power source is cut off, by constituting a device so that it is not operated even depressing an ejection button when the button is energized, and the tape cassette can be ejected manually by engaging the ejection button with a manual ejecting mechanism when the button is deenergized. CONSTITUTION:While the power is supplied, a plunger 1 is put in a state that it is attracted, and a plunger lever 2 engaged with the plunger 1, is made turn in a counterclockwise direction. An ejection button 3b is also made turn in the counterclockwise direction by the turning of the plunger lever 2, and a relation between the plunger lever 2 and the ejection button 3b goes to a state as shown in broken line in figure. At such a time, when an ejection button 3a is depressed in arrow head direction, the ejection button 3b is not engaged with an ejection arm 5, passing through the side of the arm because the button is positioned shown in broken line. The depression of the ejection button 3a is detected by an electrical circuit, and the ejection arm 5 is made turn in a clockwise direction by an electrical ejecting mechanism. In the state where the power is cut off, the plunger 1 is not attracted, and the plunger lever 2 is not made turn, and therefore, the ejection arm 5 is made turn when the ejection button 3a is depressed, then manual ejection can be performed.</p> |
