| 摘要 |
<p>A tape threading mechanism used in a magnetic tape unit which deals with a cartridge-contained magnetic tape with a leader block (3) attached at an end of the magnetic tape. The mechanism is provided for pulling out the leader block from the cartridge (1), performing a tape threading/unthreading operation, and inserting the leader block back into the cartridge. The mechanism includes a threading arm, connected to a rotational axis at one end and at the other end provided with a pin (8) for carrying the leader block, which consists of a linkage of two arms (17, 18), at least one of the arms having an elastic member (19) which allows the threading arm to expand and contract lengthwise. The elastic member facilitates proper insertion of the leader block in the cartridge with only a small applied force. <IMAGE></p> |
