Patent ID: 7644559

Claim:
A method of self-threading a bale wrapping material from a roll through a bale wrapping mechanism, comprising the steps of: providing an active roll of bale wrapping material in a first location and feeding it along a predetermined path through the bale wrapping mechanism; providing a storage roll of bale wrapping material in a second location parallel to the active roll, the first and second locations oriented vertically on opposing sides of a pivot axis of a carrier that supports the rolls; observing the active roll to determine when it is nearly exhausted of wrapping material, and, when that condition is observed: moving the storage roll from the second location to the first location into contact with the bale wrapping material along the predetermined path into the same first location previously occupied by the active roll, so that the wrapping material on the storage roll adheres to and follows the wrapping material from the active roll being fed along the predetermined path; moving the active roll in co-ordination with the movement of the storage roll from the first location to the second location.