| 摘要 |
PURPOSE:To prevent erroneous insertion of a cassette and to load it stably by fixing a release plate having a pawl which engages part of a sliding plate at one end and a curved cassette contacting part at the other end while an elastic body is interposed. CONSTITUTION:The release plate 13 is fitted to a device base side with a stepped screw 15 while the spring 14 is interposed; the pawl 13a at its one end engages the projection part 7C of the sliding plate 7 and the curved cassette contacting part 13b is provided at the other end. When the cassette 1 is inserted into a cassette housing body in the normal direction, the front end 1d of the cassette 1 abuts on the cassette contacting part 13b, which is pressed, so the relase plate 13 is displaced to disengage the projection part 7c of the slide plate 7 from the pawl 13a. Consequently, the slide plate 7 is drawn back and a vertical guide hole 5c closed by a bevel part 7b so far is opened and the cassette housing moves vertically to load the cassette 1. |
