Manufacturing container or tube from paper; or other manufacturi – Bending – Folding
Patent
1997-04-11
1998-11-24
Sipos, John
Manufacturing container or tube from paper; or other manufacturi
Bending
Folding
493407, 493417, 493446, B31B 126, B30B 302
Patent
active
058400036
ABSTRACT:
A stalled sheet folding and flattening apparatus for reducing a sheet, stalled between a withdrawable and a fixed component of a cut sheet handling system of a sheet handling machine, into a shape and size suitably enabling reliable removal of the stalled sheet through even a relatively narrow gap between the withdrawable and fixed components of the sheet handling system. The stalled sheet folding and flattening apparatus includes a fixed component of the sheet handling system connected to a frame of the machine and having a first section of a sheet path; a withdrawable component of the sheet handling system mounted to the frame, and having a sheet flattening side defining a relatively narrow gap between a fixed surface within the machine and the withdrawable component, and including a second section of the sheet path adjoining the first section of the sheet path; and a sheet folding device mounted to the fixed component. The sheet folding device includes a generally U-shaped portion defining a slot and having a sheet contact surface forming a part, of an edge of the first section of the sheet path, for contacting and deflecting into a first fold, an edge of a sheet stalled across an interface between the first and the second sections of the sheet path, when the withdrawable component is being pulled out of the machine. The sheet contact surface of the U-shaped portion has a first radius of curvature defining a first concave surface for deflecting and folding the stalled sheet, and a second radius of curvature defining a second surface for guiding the folded sheet out of the slot.
REFERENCES:
patent: 4990966 (1991-02-01), Sindo
patent: 5255061 (1993-10-01), Matsuura et al.
patent: 5652942 (1997-07-01), Iseki et al.
Kurtz, Robert L. et al., "Paper Eject Baffle", Xerox Disclosure Journal, vol. 8, No. 4, Jul./Aug. 1983, pp. 297-298.
Christy Kenneth G.
Kahn Arthur H.
Lambert Thomas P.
Meetze, Jr. Murray O.
Day Christopher W.
Ngupi Tallam I.
Sipos John
Xerox Corporation
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