Bale, an apparatus and a method for the wrapping of a bale in two crossing wrapping layers applied in overlapping helical turns

US5442893A · kind A · utility

Inventor

• Staffan Soderberg · Stockholm, SE

Key dates

• Filing date: Oct 25, 1993
• Grant date: Aug 22, 1995
• Expiry date: Oct 25, 2013

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A01F15/071
• WIPO field: Handling
• WIPO sector: Mechanical engineering

Abstract

A method for packaging bales (1) with strips of plastic packaging film (9), in which a bale is rotated about a generally horizontal axis (3) and, when appropriate, about a generally vertical axis (6), and wherein film is taken from a film magazine (7) spaced from the bale and wrapped around the bale in successive turns while maintaining the film under tension, and wherein the film in each turn of film around the bale extends generally parallel with and transversely to the horizontal axis. The method is mainly characterized in the bale (1) is then wrapped with a further wrapping of film (9), and in that successive turns (9") of this further wrapping cross-over those parts of the turns (9'") of the underlying film which extend generally parallel with the horizontal axis (3), in a manner to retain the underlying turns. This film material is held under tension while being applied. The invention also relates to an arrangement for carrying out the method, and to a bale.