Wrap material roll housing cover having sealed hinge joint and g

Details Wrap material roll housing cover having sealed hinge joint and g Wrap material roll housing cover having sealed hinge joint and g

1989-06-23

1990-07-17

Sipos, John

Package making

Partial cover application

Band or tube

53118, 53389, 242 5553, B65B 1104

Patent

active

049413112

ABSTRACT:
A mechanism for enveloping a large round bale with a surface wrap material such as plastic sheet or net includes a housing for holding a supply roll of the wrap material. The mechanism and, hence, the housing is mounted on the rear of a bale discharge gate. The housing includes a front wall defined by an upright panel secured across the rear of the gate and having an upper end portion projecting rearwardly and downwardly and a bottom wall spaced below the upper end portion of and being sloped upwardly and rearwardly relative to the front wall. The housing also includes a cover which is vertically pivotally mounted to a pair of brakets located just beneath the upper end portion of the front wall, the cover having a top wall having a forward edge portion which seals against the bottom of the upper end portion of the front wall when the cover is in a closed position. A pair of gas springs are connected between the cover and the brackets and have their line of action disposed relative to the pivot axis of the cover such that the cover is respectively biased to its closed and open positions when placed in these positions with the springs going over center as the cover is moved between the positions.

REFERENCES:
patent: 3010338 (1961-11-01), Layton
patent: 4676046 (1987-06-01), Verhulst et al.
patent: 4677807 (1987-07-01), Verhulst et al.
patent: 4691503 (1987-09-01), Frerich
patent: 4697402 (1987-10-01), Anstey et al.
patent: 4759278 (1988-07-01), Viaud
patent: 4775109 (1988-10-01), Tegg
patent: 4779527 (1988-10-01), Ardueser et al.
patent: 4798044 (1989-01-01), Viaud et al.

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