Roll-up device

Winding – tensioning – or guiding – Convolute winding of material – With particular drive

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Details

242DIG3, B65H 1820, B65H 1926

Patent

active

058950087

ABSTRACT:
A device for rolling up a sheet of paper into a roll and then ejecting the formed roll from the device, which includes: a frame, a first sheet drive, a second sheet drive and a first guide, the first sheet drive, second sheet drive and first guide defining a roll-forming space with respective first, second and third contact points at the periphery of the roll to be formed in the space with the first sheet drive, second sheet drive and the first guide, the roll-forming space having a center with connecting lines between the contact points forming a triangle in which the center is situated, wherein the first and second contact points are fixed, relative to the frame, and the third contact point defined by the first guide is displaceable from the roll-forming space in order to follow the increase in diameter of the roll during its formation, and the first guide is further displaceable to a position which defines an opening for ejecting a roll formed in the roll-forming space.

REFERENCES:
patent: 3052073 (1962-09-01), Johansen et al.
patent: 3250484 (1966-05-01), Fair
patent: 4542859 (1985-09-01), Gerstenberger
patent: 4784345 (1988-11-01), Romanowski et al.
patent: 5011093 (1991-04-01), Mayer et al.
patent: 5016833 (1991-05-01), Hamlin
patent: 5037037 (1991-08-01), Mayer et al.
patent: 5064132 (1991-11-01), Merz
patent: 5344091 (1994-09-01), Molison
patent: 5466328 (1995-11-01), Nagashima
patent: 5538199 (1996-07-01), Biagiotti
patent: 5639046 (1997-06-01), Biagiotti

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