Printing – Rolling contact machines – Rotary
Patent
1998-01-07
1999-08-17
Eickholt, Eugene
Printing
Rolling contact machines
Rotary
270 201, 270 41, 493454, 493442, B41F 502, B41F 1356, B31B 156
Patent
active
059377577
ABSTRACT:
In order to permit automated setting of operating parameters while also facilitating the removal of paper jams, a device for adjusting the gap size between folding rollers of a rotary press folding machine includes a pair of counter-rotating folding rollers which define a folding nip or gap therebetween. Each folding roller is mounted to one end of a pivoting support arm, and a link arm is slidably and pivotably mounted to the other end. An extensible member connects the link arms to each other, which enables the distance between the rollers to be quickly and easily adjusted. An inflatable bag is disposed between the support arms which forces the rollers towards each other to resist spreading of the rollers when a paper passes through the gap between the rollers. The bag can be quickly deflated from a remote location to allow removal of jammed papers, and can be quickly re-inflated to the desired setting to minimize down time. A control system controlling both the extensible member and the inflatable bag permits rapid adjustment of the folding machine to accommodate changes in paper thickness.
REFERENCES:
patent: 500433 (1893-03-01), Prum et al.
patent: 1937453 (1933-11-01), Wood
patent: 1985917 (1935-01-01), Crafts
patent: 3954258 (1976-05-01), Skipor et al.
patent: 4513956 (1985-04-01), Sigvardt et al.
patent: 4875668 (1989-10-01), Spyra
patent: 4898373 (1990-02-01), Newsome
patent: 5080339 (1992-01-01), Hirahara
patent: 5135465 (1992-08-01), Hirahara
patent: 5147276 (1992-09-01), Stab
patent: 5190514 (1993-03-01), Gazvanauskas
patent: 5242364 (1993-09-01), Lehmann
patent: 5287805 (1994-02-01), Fischer et al.
patent: 5490666 (1996-02-01), Albert
patent: 5551678 (1996-09-01), Michalik et al.
patent: 5562035 (1996-10-01), Pollich
patent: 5718661 (1998-02-01), Michalik
patent: 5738620 (1998-04-01), Ebner et al.
patent: 5779232 (1998-07-01), Ochsner
patent: 5820540 (1998-10-01), Bohn et al.
Jackson John C.
Momot Stanley
Eickholt Eugene
Goss Graphic Systems Inc.
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