Advancing material of indeterminate length – By intermittent material-mover – Comprising material-moving roll
Patent
1985-09-03
1986-08-12
Gilreath, Stanley N.
Advancing material of indeterminate length
By intermittent material-mover
Comprising material-moving roll
226142, 226147, B65H 2002, B65H 2004
Patent
active
046051473
ABSTRACT:
A roll feed apparatus has first and second rolls designed for cooperation with each other in clamping therebetween a sheet material such as to intermittently feed the same. The apparatus also has a release/brake device having first and second braking members which temporarily fix the sheet when the sheet is unclamped by the first and second rolls. The apparatus further has an adjusting device including a pivot member adapted to move, when it pivots, the first roll towards and away from the second roll thereby adjusting the gap between two rolls. The release/brake device has a braking position adjusting arm extending in the direction of feed of the sheet and pivotally secured to the pivot member at a position adjacent the path of feed, and an adjusting plate pivotally secured to the pivot member. The second braking member is provided on one end of the braking position adjusting arm. The adjusting plate is provided at its one end with a first guide member facing a second guide member across the path of feed of the sheet such as to cooperate with the second guide member in guiding the feed of the sheet. The arrangement is such that, when the pivot member pivots, an imaginary plane connecting the portions of the first roll, second braking member and the first guide member closest to the path of feed of the sheet is moved substantially in parallel with the path when the pivot member pivots by a predetermined angle.
REFERENCES:
patent: 2721649 (1955-10-01), Powers
patent: 4475678 (1984-10-01), Katoh
patent: 4549683 (1985-10-01), Kato
Gilreath Stanley N.
Sankyo Manufacturing Company Ltd.
Sohacki Lynn M.
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