Cylinder in a rotary printing machine

Details Cylinder in a rotary printing machine Cylinder in a rotary printing machine

1999-10-20

2001-02-13

Hilten, John S. (Department: 2854)

Printing

Rolling contact machines

Rotary

C101S212000

Reexamination Certificate

active

06186065

ABSTRACT:

BACKGROUND OF THE INVENTION
1. Field of the Invention
The invention relates to cylinders in a rotary printing machine, and more particularly to plate or transfer cylinders in rotary printing machines.
2. Description of the Related Art
U.S. Pat. No. 2,925,037 shows a gravure plate cylinder which is mounted on both sides in side walls and, together with an inking mechanism, can be moved out of the frame through an opening in a side wall. The opening in the side wall is created by a mounting being drawn off the journal and pivoted away together with a portion of the wall. The mounting is seated with a conical sleeve on an external cone of the journal and is screwed to the latter by means of a screwed element. In order to pull off the mounting, it is first necessary for the screwed element to be manually detached by means of a tool. Conversely, following the introduction of the plate cylinder into the machine frame, the mounting has to be screwed to the journal manually.
SUMMARY OF THE INVENTION
It is an object of the invention to provide a cylinder in which the manual installation effort relating to exposing one of its sides is reduced.
This and other objects are achieved in accordance with an embodiment of the invention, where the drive motion of the cylinder is used to screw in or to detach a screwed element by means of which a structural unit can be screwed to the cylinder. During the screwing operation, a jamming device firmly holds the screwed element. As a result, a structural unit can be screwed onto or off the cylinder without the requiring tools and manual effort. In addition, the cylinder can be exposed quickly on one side.


REFERENCES:
patent: 2925037 (1960-02-01), Fischer
patent: 4901641 (1990-02-01), Steiner et al.
patent: 4913048 (1990-04-01), Tittgemeyer
patent: 5241905 (1993-09-01), Guaraldi et al.
patent: 5711221 (1998-01-01), Comera et al.
patent: 5802975 (1998-09-01), Prem et al.
patent: 5832821 (1999-10-01), Petersen et al.
patent: 5960714 (1999-10-01), Gottling et al.
patent: 355111 (1922-06-01), None
patent: 737 496 (1943-07-01), None
patent: 1275904 (1960-12-01), None

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