| 摘要 |
<p>PURPOSE:To set exactly a cartridge and also to execute its constant and correct loading by releasing a movement lock of a cartridge holder by being engaged with the feature shape of a cartridge to which lock mechanism has been loaded, and holding its set position. CONSTITUTION:A titled mechanism is provided with a cartridge holder 53 for containing a loaded cartridge, setting mechanisms 54a-54d for supporting the cartridge holder 53 so as to be movable and also holding the cartridge holder moved by a loading operation of the cartridge, at a set position, and a lock mechanism 58 for releasing a movement lock of the cartridge holder 53 by being engaged with the feature shape of the cartridge which has been contained in the cartridge holder 53. The lock mechanism 58 is engaged with a feature shape of a cartridge 3 which has been loaded to the cartridge holder 53 by a loading operation, by which the movement lock of the cartridge holder 53 is released and a set position of the setting mechanism by the loading operation is held. In this way, the setting mechanism holds the cartridge 3 in the cartridge holder in the set position by the loading operation, therefore, the cartridge 3 can be set to a prescribed position by the loading operation.</p> |
