| 摘要 |
PURPOSE:To prevent an unexpected accident due to the revolution of each cylinder during the preparatory work of printing by detecting the position of an operator when an ink arrangement unit is separated from a printer body and there is the operator at locations facing respective cylinders of the printer body and locking the drive of a main motor. CONSTITUTION:Mat switches 1a, 1b are disposed respectively to the lower sections of ink arrangement units 15, 16 at the time of the joining of the ink arrangement units 15, 16 to a printer body 13, and a controller 2 locks the drive of a main motor 3 when the mat switches are worked when an operator rides on the mat switches 1a, 1b while driving the main motor 3 by the operation of pushbutton switches 4a, 4b at a time except the conditions of the locking. The main motors 3 is rotated at high speed by the working of the pusubutton switch 4a and at low speed by the operation of the pushbutton switch 4b respectively, and separately turns blanket cylinders 18, 19 and plate cylinders 20, 21. |
