Web accumulator

Details Web accumulator Web accumulator

1997-06-12

1998-09-22

Mansen, Michael

Advancing material of indeterminate length

Plural material-moving means

And intermediate storage

226 44, B65H 2024, B65H 2600

Patent

active

058102361

ABSTRACT:
A web accumulator having an even number of dancer rollers, arranged on either side of a single vertical guide rod for guiding the dancer roller for upward and downward movement. A support structure is provided on the guide rod so as to be movable upward and downward but not to rotate about an axis of the guide rod and supporting the dancer roller in a horizontal position. The support structure includes a lift sleeve fitting around the guide rod so as to be movable upward and downward while being prevented from rotating about the axis of the guide rod. A plurality of rolling members rollable along the vertical guide rod are provided between the guide rod and the lift sleeve and rollably retained on the lift sleeve.

REFERENCES:
patent: 3669375 (1972-06-01), Bruton
patent: 4262855 (1981-04-01), Haag
patent: 4799803 (1989-01-01), Tanaka
patent: 4995564 (1991-02-01), Zuliani
patent: 5139206 (1992-08-01), Butler
patent: 5366131 (1994-11-01), Hoffa et al.
Abstract of Application No. EP97201721.4.

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