A - Human Necessities – 01 – D
Patent
A - Human Necessities
01
D
A01D 34/14 (2006.01) A01B 73/00 (2006.01) A01D 41/12 (2006.01)
Patent
CA 2452555
The invention relates to a mowing blade that performs an oscillating linear motion, comprising a blade bar, which is composed of at least two bar sections (2, 3) that are located one behind the other along a longitudinal axis (1). The front faces (6) of said sections abut one another and are provided with respective recesses (7), in such a way that the thickness of the bar sections (2, 3) is reduced in these areas. A connecting fish plate (14), which can for example be constructed from a high strength material, is placed in said recesses. The blade sections (12), bar sections (2, 3) and fish plate (14) are connected by means of cap screws (15), which are secured using nuts (16). A blade section (12a) is arranged in such a way that it covers the butt joint (10) between the two bar sections (2, 3). Said configuration permits a good absorption of inertial forces caused by the backwards and forwards motion and of compressive forces that result from said motion in the connection region.
L'invention concerne une lame de coupe effectuant un mouvement linéaire oscillant et comportant une barre de coupe constituée d'au moins deux barres partielles (2, 3) disposées l'une derrière l'autre le long d'un axe longitudinal (1) et dotées de faces frontales (6) contigues, à partir desquelles des évidements (7) diminuent l'épaisseur des barres partielles (2, 3) dans ces zones. Dans ces évidements est placée une éclisse de raccordement (14) qui peut, par exemple, être façonnée en un matériau de dureté supérieure. L'assemblage des sections de lame (12), des barres partielles (2, 3) et de l'éclisse de raccordement (14) est réalisé au moyen de vis à tête (15) serrées par des écrous (16). Une section de lame (12a) est disposée de manière à recouvrir le joint (10) entre deux barres partielles (2, 3). Cette configuration permet de bien réceptionner les forces d'inertie résultant du mouvement de va-et-vient et les forces de flexion subséquentes dans la zone d'assemblage.
Ridout & Maybee Llp
Schumacher Heinrich-Gunter
LandOfFree
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