Stump grubber, its use, method for grubbing stumps and...

A - Human Necessities – 01 – G

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A01G 23/06 (2006.01)

Patent

CA 2524446

The invention comprises a stump grubber (10, 50) and a method of utilising it for the grubbing of stumps (38) and a method for preventing fungus disease such as root rot. Attached on the frame (14, 54) of the stump grubber are coupling means (13, 53) for coupling the stump grubber to a work machine (12, 52) and gripping means (32, 34, 36, 70) for gripping the stump (38) and a blade (18, 58) arranged to cut downwards to sever the roots (46) around the stump (38). The gripping means (32, 34, 36, 70) comprise no less than four spikes or blades (32, 34, 36, 71-75) arranged to penetrate into the stump (38). Also supported on the frame (14, 54) are power means (24, 56), such as a hydraulic cylinder for moving the gripping means (32, 34, 36, 70) and the cutting blade (18, 58) in a vertical direction relative to each other to lift the stump (38) from the ground (44).

La présente invention concerne une essoucheuse (10, 50) et un procédé pour éliminer des souches (38), ainsi qu'un procédé pour prévenir des maladies fongiques telles que le pourridié. Le châssis (14, 54) de l'essoucheuse présente des systèmes de raccord (13, 53) qui permettent de raccorder l'essoucheuse à une machine-outil (12, 52), des systèmes de préhension (32, 34, 36, 70) qui permettent de prendre la souche (38), ainsi qu'une lame (18, 58) qui permet de couper vers le bas afin de séparer les racines (46) autour de la souche (38). Les systèmes de préhension (32, 34, 36, 70) comprennent au moins quatre pointes ou lames (32, 34, 36, 71-75) qui sont conçues pour pénétrer dans la souche (38). Le châssis (14, 54) présente également des systèmes de commande (24, 56), tels qu'un cylindre hydraulique, qui permettent de déplacer les systèmes de préhension (32, 34, 36, 70) et la lame de découpe (18, 58) dans une direction verticale les uns par rapport aux autres, afin de soulever la souche (38) du sol (44).

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