Patent ID: 8276349
Filing Date: 2012-10-02
Classification: A01F,B65B,B65D

Abstract:
1. A method of applying stretch film wrapping to an agricultural bale which is of rectangular cross section using a bale wrapper apparatus which comprises: supporting the bale on a table; rotating the bale generally about its longitudinal axis during a wrapping cycle; withdrawing separate film strips from a plurality of film reels and bringing the film strips into partial overlap to form a film wrapping, said film wrapping comprising a longitudinal edge strip portion comprising a single thickness film, which wraps around at least one corner of said bale, and an adjoining longitudinal strip portion comprising a double thickness film, wherein the longitudinal edge portion has different deformation properties from the deformation properties of said adjoining portion so as to be more readily extensible under a given load than said adjoining portion, such that said stretch film wrapping wraps around said corner in a manner that at least reduces creases or wrinkles in the film winding; forming successive overlapping windings of the film wrapping so as to cover the bale; and applying relative rotation between the table and the dispenser reel about a second axis which extends substantially perpendicular to said first axis during the wrapping cycle.