| 摘要 |
PURPOSE:To prevent erroneous press operation by controlling the action of a switch by the presence of an obstacle between dies and so devising that the plunger does not drive unless mutual position of a holder plate and a driving plate is passed. CONSTITUTION:Specified fittings and buttons are fitted to a punch 14 and a lower die 15. Holding a dress material by hand, a specified position of the material is aligned with the punch and the lower dies and the pedal is worked. If a hand etc. is inserted on the lower die 15, the front end of a feeler touches the hand and cannot go down further, and a holder plate 25 and a driving plate 23 rotate relatively. Accordingly, the switch S3 does not open and a power source is not connected to a plunger 13. |
