| 摘要 |
<p>A function, such as ejection of a cassette from a magnetic-tape-cassette apparatus, is performed by depressing two pushbuttons simultaneously, where each of said pushbuttons moves an associated button rod when depressed singly to perform an individual apparatus function, such as fast winding. A third rod such as an ejection rod is moved when the two buttons are depressed simultaneously, via a control member arranged on the third rod by a support. The control member is engaged by a respective guide surface to be displaced laterally when one of the buttons is depressed, and remains in a central position when both buttons are simultaneously depressed, to move the third rod in the direction of buttom movement. When only one button is depressed, during return movement of the button to the initial position a spring biases the control member to its central position, so that the entire mechanism occupies minimal space and is easily redesigned into a three button actuating mechanism.</p> |
