Wrapping device with a circular track structure, and a film...

Details Wrapping device with a circular track structure, and a film... Wrapping device with a circular track structure, and a film...

2005-05-10

2005-05-10

Gerrity, Stephen F. (Department: 3721)

Package making

Partial cover application

Band or tube

C053S389400, C100S027000

Reexamination Certificate

active

06889488

ABSTRACT:
A wrapping device having at least a circular track structure which forms a closed track, and a film feeding device which is arranged to circulate along the track and to feed a film around a piece to be wrapped, wherein the film feeding device is provided with a mechanism for fixing a film roll in the film feeding device in a rotating manner, feeding mechanism, through which the film is arranged to be fed at a predetermined film tension, and a drive mechanism which is arranged, if necessary, to rotate the film roll in a direction in which the film is rewound onto the film roll and which is arranged to receive its driving force by mechanical contact between the drive mechanism and the circular track structure. The film feeding device also has a mechanism which is arranged to disconnect and reconnect the contact, wherein the mechanism is controlled either on the basis of the film tension or on the basis of the location of the film feeding device on the track, or on the basis of them both.

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