| 摘要 |
<p>PURPOSE:To simplify a mechanism and to miniaturize an external form by forming two cam grooves having each function, on one rotating body, as a means that inserts a cassette in a lateral F/L and moves it in a longitudinal and upward/downward directions. CONSTITUTION:At the side plane of a frame 15 in the longitudinal direction, a cam 24 rotated and driven by a driving motor is supported by an axis 25, and two cam grooves 24a and 24b are formed on the cam 24. A device is constituted so that the radius of curvature of the cam groove 24a becomes smaller gradually within a rotation angle alpha between a point A1 and a point A2 and it is stable within a rotation angle beta between the point A1 and a point A2, meanwhile, the radius of curvature of the cam groove 24b is stable within the rotation angle alpha between a point B1 and a point B2, and it becomes smaller gradually within the rotation angle beta between the point B1 and a point B2. Thereby, the cassette can be moved in the longitudinal direction by the cam groove 24a and raised or lowered by the cam groove 24b.</p> |
