| 摘要 |
<p>PURPOSE:To attain a small and light-weight structure of a pinch lock device by connecting more organically the parts which function to press a pinch roller to a capstan and simplifying further the constitution of each part. CONSTITUTION:A lever 59 is turned clockwise when the loading and unloading actions are through, and a lever 60 has an end supported rotatably by the lever 59 via a shaft with the other end connected slidably to a pinch lever 52 via a pin 69 and a slit 68. The pin 69 slides in the slit 68 according to the clockwise turning of the lever 59 while the lever 52 is turned clockwise. While the lever 52 is pushed clockwise by the pin 69 according to the rotation of the lever 59 when the lever 52 is positioned at a lock waiting position. For this purpose, the turning direction of the lever 60 is changed in response to the position of the lever 52. Thus just levers 63, 59 and 60 and a spring 70 are needed to transmit the movement of a slider 41 and the elastic power of a spring 58 to the lever 52. Thus the number of component parts can be decreased.</p> |
