Drive device

Details Drive device Drive device

1980-09-17

1982-04-13

Eickholt, E. H.

Printing

Rolling contact machines

Rotary

744115, 192 007, B41F 500

Patent

active

043241808

ABSTRACT:
The invention relates to a drive device, particularly for offset printing machines, in which a control lever is mounted on a pin fixed in the side wall of the printing machine and is connected by means of an adjustable bar to a swing fork, in which a variable speed gear box is mounted, joined by means of a drive belt to a common pulley, which is linked intermediate of a V-belt to a free part of an electromagnetic clutch which is electromagnetically connected with the stationary part of said clutch. The stationary part of the clutch is mounted on a worm gear which engages a worm joined with an electric motor for the tip - motion of the printing cylinders.
The device provides the advantage, that the control of the variable speed gear box ratio is accomplished by a separate mechanism and the impulses for increasing or decreasing the number of revolutions of the printing machine is effected electrically.

REFERENCES:
patent: 2824457 (1958-02-01), Norton
patent: 3742244 (1973-06-01), Raible
patent: 3956985 (1976-05-01), Ishii
patent: 4000242 (1976-12-01), Hartbauer

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