Disc and knife cutter assembly for mowing

Details Disc and knife cutter assembly for mowing Disc and knife cutter assembly for mowing

A - Human Necessities

01

D

A01D 34/73 (2006.01)

Patent

CA 2271966

A cutting assembly for a mowing machine has a disk (12) and a knife member assembly. The disk (12) has a surface portion (14) of which at least a peripheral portion is planar. At least three knife members (18), which have a cutting edge (50), a beveled surface portion (48) which extends from the cutting edge (50) and a body surface portion (60) which extends from the beveled surface (48), are mounted to the disk (12) at positions so that the knife members (18) are displaced substantially equidistantly one from another and so that upon rotation of the disk (12) in a plane about a central disk axis, the cutting edge (50) of the knife members (18) extends away from the disk (12), and the body surface (60) is, with respect to the disk planar surface, inclined at an angle.

L'invention concerne un ensemble coupant pour machine à tondre, comportant un ensemble disque (12) et éléments coupants. Le disque (12) présente une surface (14) dont au moins une partie périphérique est plate. Au moins trois éléments coupants (18) qui présentent un bord tranchant (50), une surface biseautée (48) qui s'étend depuis le bord tranchant (50), et une surface de corps (60) qui s'étend depuis la dite surface biseautée (48), sont assemblés au disque (12) de manière à ce que les éléments coupants (18) se déplacent sensiblement à équidistance les uns des autres. Ainsi, lorsque le disque (12) tourne dans un plan autour d'un axe central du disque, le bord tranchant (50) des dits éléments coupants (18) s'étend loin du disque (12), et la surface de corps (60) est, par rapport à la surface plate du disque, inclinée selon un angle.

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