| 摘要 |
PURPOSE:To arrange so that the position of a blade may be easily adjusted by fine-adjusting the movement amount of a blade through rocking of a link due to the movement of a shaft and the shift of a fulcrum of a link by the advance and retreat of a fulcrum holder. CONSTITUTION:A link 11 consisting of a base edge which is axially borne at a fulcrum holder 13 with a pin 12 in a freely rocking way and a floating shaft 9 of a floating edge which is pressed against a socket 8 by a push rod 14 or other means, is provided between a screw shaft 6 which moves in an internal and external direction with an electric motor 1 or manually and a fulcrum holder 13 which moves with a knob 22. Consequently, a floating wheel 17 of the link 11 moves due to the movement of a shaft 1 by the electric motor 1 and the movement of the fulcrum holder 13 with the knob 22 through the pushing force of a spring 20. Thus the position of a blade 19 against an ink roller 25 is adjusted and the fine adjustment can be easily carried out. In addition, a recoiling force of a spring for blade return can be increased and ink leakage from the surrounding of the blade be prevented. |
