PURPOSE: To perform smooth loading and unloading without using any motor exclusively dedicating to loading and unloading, by detecting the insertion of a cassette, moving the cassette through a cam, and then moving the cassette to a reproduction position in the former half of the rotation of the cam and to an ejection position in the latter half.
CONSTITUTION: When a cassette 5 is pressed in until a position L1, a cassette moving plate 6, a rotary arm 9, and a coupling arm 11 couples together and a cassette moving arm 12 also rotates to detect the cassette by 14. A cam rotating body 13 also has a half turn to allow a pin 13a to press a cam surface 12c, and the cassette 5 is drawn automatically to a position L2 to reach a reproduction position. For cassette ejection, the cam rotating body in the half-turn state returns to its original position by a mechanism which is not shown in the figure. In this case, the cassette 5 is elevated without being ejected and at the same time, a pin 13b presses the cam surface 12c of the moving arm 12 continuously. Eventually, the pin 13b comes out from the cam surface 12c and the moving arm 12 rotates clockwise through a spring 10 to suppress the ejection speed of the cassette, which is prevented from jumping out without using an exclusive motor.
KOBAYASHI SATORU
USUI YOSHIO
