Package making – Apparatus for contraction of cover by stretching or shrinking
Patent
1990-11-29
1991-11-26
Sipos, John
Package making
Apparatus for contraction of cover by stretching or shrinking
53586, 53228, B65B 1108
Patent
active
050673122
ABSTRACT:
In a device for packaging objects in stretch film, the film (3) intersects the supporting face determined by the conveyor track (1), and the conveyor track (1) is at least partially of a width which is smaller than that of the objects (2) to be packed, in such a way that the latter project at the longitudinal sides relative to the conveyor track (1) and the part of the film situated below the supporting face can wrap around the bottom longitudinal edges against and on the edge areas of the bottom side of the objects to be packed. A transverse part (9) of the conveyor track (1) which in the direction of conveyance of the objects (2) connects directly to the place where the film (3) intersects the conveyor track (1) is open or has a transverse section (14) which can be moved away out of the conveyor track (1), in such a way that, after the weld (8) is cut, a space is formed in which the film (3) projecting downwards relative to the rear side of the objects (2) can wrap around the rear, bottom transverse edge of the objects (2) against and on the edge area.
REFERENCES:
patent: 3306003 (1967-02-01), Sundy
patent: 3841057 (1974-10-01), Engeler
patent: 3990215 (1976-11-01), Elsner
patent: 4628668 (1986-12-01), Wildmoser
Apollo B.V.
Sipos John
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