| 摘要 |
<p>PURPOSE:To automatically open a door without especially needing a driving source by transmitting revolving operation in the specified direction of a revolving shaft with using a first bush, which can be freely revolved, and a second bush to be unitedly fit to the revolving shaft. CONSTITUTION:With using a first bush 4, which is fit to a revolving shaft 3 with being freely revolvable, and a second bush 6 to be unitedly fit to the revolving shaft 3, the revolving operation in the specified direction of the revolving shaft 3 is transmitted to a door 2. When a cassette case 1 is carried in, the door is pushed and opened by the case. When the cassette case 1 is carried out, a lever 11 is abutted to the case 1 and the first bush 4 is revolved. Then, the revolution of the first bush is transmitted to the second bush 6 and the revolving shaft 3 is revolved in the specified direction. Thus, without especially needing the driving source, the door can be automatically opened by utilizing the movement of the cassette case itself.</p> |
