Tractor-mounted cultivator apparatus

A - Human Necessities – 01 – B

Patent

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Details

A01B 35/08 (2006.01) A01B 35/10 (2006.01)

Patent

CA 2216503

A cultivator apparatus, for use on a motor vehicle, includes a blade-support/vehicle-connector assembly which includes a horizontally oriented base portion, blade connectors attached to the base portion for connecting to a blade assembly, and first vehicle connectors attached to the base portion for connecting to the motor vehicle. A blade assembly is connected to the blade connectors and extends downward from the base portion. The blade assembly includes a pair of downwardly descending strut members connected to the blade connectors and includes a horizontally extending scraper blade unit connected to the strut members. The blade-support/vehicle-connector assembly further includes a lift-link assembly supported by the base portion. The lift-link assembly includes housing walls connected to the base portion. A lower link-support pin is connected horizontally between the housing walls. An upper link-support pin is connected horizontally between the housing walls. A link member is supported between the housing walls by the lower link-support pin and the upper link-support pin. The link member includes second vehicle connectors. The upper link-support pin is a shear pin. The first vehicle connectors of the base portion include a first three-point-hitch-assembly connector located on a first side of the base portion and include a second three-point-hitch-assembly connector located on a second side of the base portion. The second vehicle connectors of the first link member provide a third three-point-hitch-assembly connector. 23

Un cultivateur qui se monte sur un véhicule à moteur comprend un assemblage de support de lame et raccordement au véhicule comportant une base orientée horizontalement, des raccords de lame fixés à la base pour raccordement à un assemblage de lame, et des premiers dispositifs de raccordement au véhicule fixés à la base pour raccordement au véhicule à moteur. Un assemblage de lame est rattaché aux raccords de lame et s'étend vers le bas à partir de la base. L'assemblage de lame comprend une paire de jambes de force descendant vers le bas et rattachées aux raccords de lame et comprend une lame racleuse s'étendant horizontalement et rattachée aux jambes de force. L'assemblage de support de lame et raccordement au véhicule comprend en outre un assemblage de liaison-levage supporté par la base. L'assemblage de liaison-levage comporte des parois de logement raccordées à la base. Un axe de support-liaison inférieur est raccordé horizontalement entre les parois de logement. Un axe de support-liaison supérieur est raccordé horizontalement entre les parois de logement. Un élément de liaison est supporté entre les parois de logement par l'axe de support-liaison inférieur et l'axe de support-liaison supérieur. L'élément de liaison comprend des deuxièmes dispositifs de raccordement au véhicule. L'axe de support-liaison supérieur est une goupille de cisaillement. Les premiers dispositifs de raccordement au véhicule de la base comprennent un premier dispositif de raccordement d'attelage trois points situé d'un premier côté de la base et comprennent un deuxième dispositif de raccordement d'attelage trois points situé d'un deuxième côté de la base. Les deuxièmes dispositifs de raccordement au véhicule du premier élément de liaison fournissent un troisième dispositif de raccordement d'attelage trois points.

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