| 摘要 |
<p>PURPOSE:To transmit rotating power and specify rotation securely through simple constitution without providing a brake separately. CONSTITUTION:A rim driving part consists of a rim 28, a spring bearing 29, and a compression spring 30. The rim 28 and the spring bearing 30 are pressed to upper and lower specifying parts 22 and 27 by the spring 30. The rim 28 and the spring bearing 29 rotate a reel 20 in a reproduction mode against the friction to the upper and lower specifying parts 22 and 27 which are pressed. The rim driving part does not rotate against the friction force of sliding surfaces 28a and 29a provided to the rim 28 and the spring bearing 29, and stops immediately in a stop mode. An engagement part 28b and an engagement piece 29b abut on each other by the spring force when the upper specifying part 22 is detached, so the rim 19, the spring bearing 29, and the spring 30 form one body; the rim driving part is handled as a single article.</p> |
