Cutting device

Details Cutting device Cutting device

A - Human Necessities

01

F

A01F 29/04 (2006.01) A01F 12/40 (2006.01)

Patent

CA 2309219

The present invention relates to a cutting device for cutting straw and similar material into pieces, of the type which comprises a driven shaft in a housing. The shaft is provided with rows of knife attachments for knives, which extend radially from the shaft and are provided with cutting edges. The knives, in operation, pass between a row of counter-knives directed towards the shaft and preferably also are provided with cutting edges, whereby the straw material to be cut is fed towards the counter- knives. The number of rows with knife attachments are at least six. The distances between knife attachments in a row have a proportion of 4:4:5 of a repeating sequence, where the knife attachments are positioned such that they form at least two helices disposed longitudinally on the shaft.

L'invention concerne un dispositif de coupe destiné à couper en morceaux de la paille et autres matières similaires, du type de ceux comprenant un arbre mené (11) logé dans un boîtier (21), ledit arbre (11) présentant des rangées longitudinales (1-6) de fixations pour couteau (15), qui s'étendent radialement de l'arbre et sont pourvues de bords tranchants. Lesdits couteaux (15) passent entre une rangée de couteaux opposés (19), en cours de fonctionnement, orientés vers ledit arbre et pourvus de préférence de bords tranchants. La paille à couper est acheminée vers les bras opposés (9). Le nombre de rangées (1-6) présentant des fixations (14) pour couteau sont au moins au nombre de six. Les distances entre trois fixations pour couteau dans une rangée longitudinale présentent un rapport de 4:4:5 d'une unité de répétition, les bras (4, 5) en rotation formant au moins deux limaçons.

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