| 摘要 |
PROBLEM TO BE SOLVED: To simultaneously twist fixed metal fittings without enlarging a small cover, by converting a conversion part into the rotation movement of an engagement part with the direct movement of direct driving movement, rotating the engagement part engaged with the fixed metal fittings and twisting the fixed metal fittings. SOLUTION: An air cylinder 7 is driven upward. Thus, a pin holder 8 is also driven upward. Shafts 6A-6B are freely rotatably fitted to a shaft holder 3 and the pin holder 8 is fixed to the air cylinder 7 so that it does not rotate. When the pin holder 8 moves upward, a pin 11 moves upward, the pin 11 is engaged with the rotation section of a cam groove 10 and the shafts 6A-6B rotate in accordance with the form of the rotation section. Since curve comas 5A-5B also rotate, the fixed metal fittings 21A-21B engaged with the grooves of the curve comas 5A-5B are twisted and deformed in accordance with the rotation. |
