Rotary mower over-center self-locking wing lift

A - Human Necessities – 01 – B

Patent

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Details

A01B 73/04 (2006.01) A01D 34/66 (2006.01)

Patent

CA 2585274

A wing-type rotary mower apparatus with a hydraulically powered over-center self-locking wing lift that extends between the central mower deck and the wing mower deck(s) to effect wing movement from a working position to a locked transport position. The lift mechanism comprises a double acting cylinder, a bell crank, and a pair of lift links that are pivotally connected. When the cylinder is retracted the bell crank rotates inward towards the center of the apparatus transferring the movement through the lift links to the mower wing(s). The rotational force on the bell crank about a fixed central pivot point on the central mower deck goes from an outward force reacted to by the cylinder to an inward force supported by the stop seat on the central mower deck; effectively locking the wing(s). The procedure is reversed when the cylinder is extended to return the wing(s) to the working position.

Faucheuse rotative avec élévateur à aile munie d'un élévateur à aile autobloquante décentrée qui se prolonge entre le châssis de la faucheuse et le châssis des ailes de la faucheuse pour influencer le mouvement des ailes à partir d'une position de travail à une position de transport verrouillée. Le mécanisme de levage comprend un vérin à double effet, un renvoi d'angle et une paire de bras de force qui sont raccordés de manière à pivoter. Lorsque le vérin est rentré, le renvoi d'angle tourne vers l'intérieur, vers le centre du dispositif transmettant le mouvement aux ailes de la faucheuse par le biais des bras de force. La force de rotation du renvoi d'angle autour d'un pivot central fixe sur le châssis central de la faucheuse convertit une force extérieure en réponse au vérin en une force intérieure supportée par le siège de butée du châssis central de la faucheuse, ce qui bloque pratiquement les ailes. L'opération est inversée lorsque le vérin est allongé pour remettre les ailes à la position de travail.

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