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

US5487255A · kind A · utility

Inventor

• Staffan Soderberg · Stockholm, SE

Key dates

• Filing date: Feb 24, 1995
• Grant date: Jan 30, 1996
• Expiry date: Feb 24, 2015

Classification

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

Abstract

A method for packaging bales with strips of plastic packaging film, in which a bale is rotated about a generally horizontal axis and, when appropriate, about a generally vertical axis, and wherein film is taken from a film magazine 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 bale is then wrapped with a further wrapping of film such that successive turns of this further wrapping cross-over those parts of the underlying film which extend generally parallel with the horizontal axis in a manner to retain the underlying turns. The film material is held under tension while being applied.