| 摘要 |
<p>PURPOSE:To decrease the number of components composing a locking mechanism and to reduce an occupying space by allowing a locking member to move with the bouncing force of an elastic body when a switching member reaches a specified position, and allowing the member to engage with a locked member of the switching member. CONSTITUTION:A projection 2c of a cassette holder 2 abuts on a leaf spring 26, and when the leaf spring 26 is thrust-pressured, it is deformed, a locking lever 10 receives rotational force in arrow C direction, and the rotational force exceeds rotation energizing force in arrow D direction by a tensile spring 30, the locking lever 10 turns in the arrow C direction. Further, when the cassette holder 2 is pushed down, a micro-switch 23 is turned on, and the locking lever 10 completely engages with a locking pin 9. Thus, the locking mechanism can be composed of a small number of components, and the occupying space can be reduced, as well.</p> |
