Patent ID: 7067833

Claim:
An apparatus for wrapping a bale of agricultural material, at least one wrapping media web being drawn off from a wrapping material supply during the wrapping process and signal means being provided which signals a tear in the wrapping media web or that the wrapping media supply has been used up, characterized in that at least one of the following sensors: an optical sensor or an ultrasonic sensor or a sensor for electromagnetic radiations of different frequency ranges, or any combination thereof, is operatively associated with a portion of said wrapping media web between said wrapping media supply and said bale, said sensor or said combination of sensors being disposed relatively stationarily in the apparatus, said wrapping media supply being arranged on a rotary arm revolving around said bale during the wrapping process, and an evaluation for tears in the wrapping media web portion or the full consumption of the wrapping media supply being signaled by said signal means only when said wrapping media web portion moves through an active operating space of said sensor or a combination of said sensors.