Tillage apparatus having flexible frame and weight...

A - Human Necessities – 01 – B

Patent

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Details

A01B 33/02 (2006.01)

Patent

CA 2498677

A tillage apparatus including a frame having tillers, land wheels supporting the frame, and press wheels on the frame is disclosed. In one form, the frame has a forward section and a rearward section supporting the press wheels. The rearward section can pivot radially with respect to the direction of movement of the forward section. In another form, the frame includes a linkage assembly connected to the rearward section. An inner wheel support gang having press wheels is attached to a pivoting mounting bracket of the linkage assembly such that the inner wheel support gang can pivot vertically. In another form, the apparatus includes a weight transfer device including a linkage connecting a boom and the forward section. A biasing means pivotally connected to the forward section and to the linkage distributes weight from the boom to the forward section to the rearward section and to the press wheels.

Ce document présente un instrument de travail du sol formé d'un cadre sur lequel sont montés les outils de labour, de roues supportant le cadre et de roues de pression montées sur le cadre. Dans l'une des formes qu'il peut prendre, le cadre comporte une section avant ainsi qu'une section arrière soutenant les roues de pression. La section arrière peut pivoter de façon radiale par rapport aux mouvements de la section avant. Dans une autre forme, le cadre comporte un attelage reliant les portions avant et arrière. Un module intérieur sur lequel sont montées des roues de pression est fixé à un support de montage pivotant intégré à l'attelage, pour permettre au module de roues de pivoter verticalement. Dans une autre forme, encore, l'appareil comporte un dispositif de transfert de poids comprenant un attelage relié à une flèche et à la section avant. Un dispositif de compensation relié à l'attelage et à la section avant par un pivot répartit le poids de la flèche sur les sections avant et arrière de même que sur les roues de pression.

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