Air leaf stripping system and agricultural machine equipped with such system

A pneumatic leaf stripping system for stripping grape vine leaves, intended to be mounted on an agricultural machine, and comprising:

• a casing provided with an arm intended to be mounted on the agricultural machine directly or via a frame, comprising fixed pneumatic leaf stripping means each provided with at least one circular opening formed by four openings,
• a supply line capable of supplying compressed air to the stripping means, and allow stripping by the stripping means by projecting compressed air through the opening provided in the casing,
• adjustment means comprising a rotary connection and means for rotating the casing,
• the arm having a main longitudinal axis and comprising the supply line and an attachment part for mounting on the agricultural machine directly or via a frame,
• the supply line is guided along the attachment part and is connected to the stripping means through a connection in the casing via the rotary connection,
• the means for rotating are configured to allow the casing to rotate about a first axis passing through the connection and substantially perpendicular to the main longitudinal axis of the arm, between at least two distinct angular positions with respect to the first axis,
• the means for rotating comprise a longitudinal member extending between a first point of non-rigid attachment to the casing located at a non-zero distance from the axis passing through the connection, and at least one second point of attachment to the arm,
• the second point of attachment can assume at least two distinct positions corresponding to the two distinct angular positions of the casing,
• the connection at the first point of attachment allows at least rotation of the longitudinal member with respect to the casing about a second axis parallel to the first axis,
• each of stripping means comprises at least two nozzles for projecting the compressed air, the two nozzles have different inner diameters;
• the adjustment means for adjusting stripping intensity is capable of directing a flow of the compressed air coming from the supply line exclusively towards one of the two nozzles;
• the system comprises lockable release means capable, in a blocking configuration, of blocking the casing in either of the two distinct angular positions, and in a release configuration, allowing the casing to pass from one to the other of the two distinct angular positions by rotation about an axis passing through the connection.