Improvements in articulating lawn mowers

Details Improvements in articulating lawn mowers Improvements in articulating lawn mowers

A - Human Necessities

01

D

A01D 34/76 (2006.01) A01D 34/66 (2006.01)

Patent

CA 2261671

A mowing apparatus (1) with multiple articulating cutting decks (40-42) includes a pair of side cutting decks (41, 42) attached to a center cutting deck (40). The side decks (41, 42) are pivotally attached to the center deck (40) and pivot about axes which lie in the planes defined by rotation of the respective cutting blades (80, 82, 84). The cutting blades are driven by pulleys and belts. Proper tension in each side drive belt (92) is maintained during pivoting of the corresponding side deck (41) by an assembly comprising a pair of idler pulleys (94, 96) rotatably mounted on a pivotally attached pulley arm (100) which is biased in the direction which increases tension on the belt (92).

L'invention concerne une tondeuse à gazon (1) à ensembles de coupe articulés multiples (42, 42), qui comporte une paire d'ensembles de coupe latéraux (41, 42) fixés à l'ensemble de coupe central (40). Les ensembles de coupe latéraux (41, 42) sont fixés pivotants à l'ensemble central (42) et pivotent autour d'axes situés dans les plans définis par la rotation des lames de coupe respectives (80, 82, 84). Les lames de coupe sont entraînées par des poulies et des courroies. Une tension appropriée de chaque côté de la courroie (92) est maintenue pendant le pivotement de l'ensemble latéral correspondant (41) par un ensemble comprenant une paire de poulies de tension (94, 96) montées rotatives sur un bras de poulie (100) fixé pivotant et sollicité par un ressort dans une direction, ce qui augmente la tension sur la courroie (92).

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