Sheet feeding or delivering – Feeding – By means to convey sheet
Reexamination Certificate
2000-07-31
2001-10-30
Bollinger, David H. (Department: 3651)
Sheet feeding or delivering
Feeding
By means to convey sheet
C271S198000, C198S817000, C198S866000
Reexamination Certificate
active
06308950
ABSTRACT:
BACKGROUND OF THE INVENTION
Field of the Invention
The invention relates, in general, to a paper processing device used in a printing press line, and in particular, to a paper processing device with a tape replacement apparatus that can be used to replace one or more of the tapes that carry signatures through the paper processing device.
A paper processing device, for example, a folder used in a printing press line has tapes or belts that carry signatures around the rollers of the folder. When the tapes deteriorate, get dirty, or break, they must be replaced. Replacement is usually performed by manually routing the tapes around the rollers and through the intended path. Manual replacement is time consuming and difficult because of the limited workspace that is available inside the folder. Thus, there is a need to reduce the time required for replacing the tapes.
SUMMARY OF THE INVENTION
It is accordingly an object of the invention to provide a paper processing device with a tape replacement apparatus and a method of replacing a tape or tapes of a paper processing device which overcomes the hereinafore-mentioned disadvantages of the heretofore-known devices and methods of this general type in such a way that the tapes which carry signatures through the paper processing device can be easily replaced.
With the foregoing and other objects in view there is provided, in accordance with the invention, a paper processing device that includes a pair of frames having opposing sides and a plurality of cylinders disposed between the opposing sides of the frames. Each one of the cylinders has an axis for rotation thereabout. The paper processing device includes a plurality of tapes each disposed to circulate around the plurality of cylinders. The paper processing device includes a holder for holding a replacement tape for replacing one of the plurality of tapes, and an elongated conveying element disposed for circulation around the axis of the plurality of cylinders. The elongated conveying element is attached to the holder for guiding the replacement tape around the plurality of cylinders.
In accordance with an added feature of the invention, the holder includes a plurality of grippers spatially distributed between the opposing sides of the frames.
With the foregoing and other objects in view there is provided, in accordance with the invention, a method of replacing a tape in a paper processing device, that includes providing a paper processing device with tapes to carry signatures and disposing the tapes such that they can move around cylinders in a predetermined path. A holder is provided that can move around cylinders in the predetermined path. A first end of a replacement tape is secured to the holder. The holder is moved in the predetermined path to route the replacement tape around the cylinders. The first end of the replacement tape is spliced to a second end of the replacement tape such that the tape can function as a tape that carries signatures.
Other features which are considered as characteristic for the invention are set forth in the appended claims.
Although the invention is illustrated and described herein as embodied in a paper processing device with a tape replacement apparatus and a method of replacing a tape of a paper processing device, it is nevertheless not intended to be limited to the details shown, since various modifications and structural changes may be made therein without departing from the spirit of the invention and within the scope and range of equivalents of the claims.
The construction and method of operation of the invention, however, together with additional objects and advantages thereof will be best understood from the following description of specific embodiments when read in connection with the accompanying drawings.
REFERENCES:
patent: 3287013 (1966-11-01), Fairbanks et al.
patent: 4293087 (1981-10-01), Schmitz
patent: 4861014 (1989-08-01), Martin
patent: 5673784 (1997-10-01), Karpinsky et al.
patent: 5692745 (1997-12-01), Neifert et al.
patent: 5954473 (1999-09-01), Folsom
Sappal Jatinder Singh
Wingate Mark Anthony
Bollinger David H.
Greenberg Laurence A.
Heidelberger Druckmaschinen AG
Lerner Herbert L.
Stemer Werner H.
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