Fastening device for coupling of blades in agricultural...

A - Human Necessities – 01 – B

Patent

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A01B 33/14 (2006.01)

Patent

CA 2690660

Fastening device for coupling of blades in agricultural cultivation machines, in particular, tilling machines such as rotary tillers, characterized in that it comprises an intermediate fastening element (1), formed by a solid body, which joins the blade (2) to the rotary plate (7); said intermediate fastening element (1) is equipped with fastening means (3) for linking same to the rotary plate (7); guiding means (4) for insertion of the blade (2) into the intermediate fastening element (1); and at least one through hole (5), extending transversely with respect to the direction of the guiding means (4) and intended for insertion of an extractable bolt (6) which, when said bolt (6) is inserted, acts as a retaining element for the blade (2) with respect to the intermediate fastening element (1). Said arrangement enables the user/operator to manually replace and/or reset the tilling blade, avoiding any need for accessory tools commonly used for this purpose.

L'invention concerne un dispositif de fixation pour l'accouplement de dents à des machines de culture agricoles et, plus particulièrement, à des machines pour le travail du sol, de type fraise rotative ou cultivateur rotatif. L'invention se caractérise par le fait qu'elle comprend un élément de fixation intermédiaire (1) composé d'un corps massif unissant la dent (2) à la plaque rotative (7). Ledit élément de fixation intermédiaire (1) est équipé de moyens de fixation (3) permettant de le relier à la plaque rotative (7), de moyens de guidage (4) permettant d'insérer l'élément de fixation dans l'élément de fixation intermédiaire (1), et d'au moins un orifice (5) traversant transversal par rapport à l'orientation des moyens de guidage (4), destiné à l'insertion d'une fiche (6) amovible qui, lorsqu'elle est mis en place, fait office d'élément de retenue de la dent (2) par rapport à l'élément de fixation intermédiaire (1). Ledit dispositif permet de remplacer et/ou de repositionner la dent de travail du sol simplement, manuellement, aucun outil accessoire généralement utilisé n'étant nécessaire pour réaliser cette opération.

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