System for dispensing a continuous web from a roll on which the

Details System for dispensing a continuous web from a roll on which the System for dispensing a continuous web from a roll on which the

1989-12-04

1991-04-09

Cuchlinski, Jr., William A.

Winding, tensioning, or guiding

Coil holder or support

Spool or core

24 753, 24 7543, B65H 2316, B65H 1820

Patent

active

050057790

ABSTRACT:
Continuous web material, particularly perforated paper from a roll is dispensed by a system installed, for example, in a computer printer. The system utilizes a roller which is fixed in a frame. The roll of paper has a central opening. The roll is supported on a shaft of diameter smaller than the diameter of the opening. The roll rests on the roller and is supported so that it can pivot and move up and down toward and away from the roller. This support is provided by slots in walls of the frame between which the roll is located and which receive the opposite ends of the shaft and guide the shaft. When the paper is pulled (unwound) from the roll, as by tractors when the paper is edge perforated, the roll climbs along the periphery of the cylindrical roller. The pivotal movement is limited by the walls of the slot and the shaft. When the pull on the paper stops, the roll falls down along the periphery of the roller and rotates in the opposite direction from that in which the paper is pulled from the roll (i.e., the roll backs up) thereby applying back tension to the paper between the tractor and the roll and maintaining the paper tight. The paper is pulled and unreeled from approximately the point of contact of the roll (at the outer turn of the paper) and the cylindrical roller along a straight path generally aligned with the gap between the lid and body of the tractor.

REFERENCES:
patent: 573229 (1896-12-01), Metz
patent: 1773743 (1927-07-01), Moore
patent: 1825782 (1931-10-01), Duff
patent: 1973354 (1934-09-01), Nedberg
patent: 2205198 (1938-06-01), Hope
patent: 2649256 (1953-08-01), Skrebba
patent: 2957638 (1960-10-01), Schiller et al.
patent: 3582010 (1971-06-01), Whiteman
patent: 3684205 (1972-08-01), Rogow
patent: 4345708 (1982-08-01), Hubbard

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