Safety device for ink forming rollers

Details Safety device for ink forming rollers Safety device for ink forming rollers

1991-04-19

1992-07-14

Burr, Edgar S.

Printing

Rolling contact machines

Rotary

101348, 92 19, 92 21MR, B41F 500

Patent

active

051293196

ABSTRACT:
In a safety device for ink forming rollers, each of the rollers is supported on a frame through a moving shaft movable in an axial direction to remove the ink forming roller, a safety pin is provided which is urged and supported on the frame, the moving shaft is formed with a recess for engagement with the safety pin and guide surface for guiding the safety pin to the recess against the urging force of the safety pin. When the ink forming roller is mounted, the safety pin automatically engages to interrupt movement of the moving shaft, thereby preventing the ink forming roller from falling down due to an external cause such as a power stoppage or a misoperation, and the safety device being prevented from careless locking failure, thereby improving the safety of the printing machine.

REFERENCES:
patent: 4372205 (1983-02-01), Pflaum
patent: 4535947 (1985-08-01), Hidle
patent: 4901641 (1990-02-01), Steiner et al.

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