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US 4,397,135 AGranted
Forkless haymaking machine
AssigneeBelrecolt S.A.
InventorAlbert Wattron
Life of this patent
Estimating the term…
Abstract
A haymaking machine for the windrowing, tedding or turning of crops, includes at least one drum rotatable about an upright axis, a flexible and deformable skirt arranged to follow the contour of the ground, and connected near the bottom of the drum for sweeping up the crop to carry it on its upper surface, and a plurality of outwardly extending arms secured to the exterior of the drum above the skirt to aid in displacing the crop.
Claims10
A haymaking machine for the windrowing, tedding or turning of crops,
- comprising in combination:
- at least one drum rotatable about an upright axis,
- a flexible and deformable skirt arranged to follow the contour of the ground and being connected near the bottom of said drum for sweeping up the crop to carry it on its upper surface, and
- a plurality of rigid, outwardly extending arms rigidly secured to the exterior of said drum above said skirt to aid in displacing the crop, each arm having a length at least 20% of the drum radius,
- said arms being disposed on different drum levels,
- and wherein the extremeties of the arms disposed at the lowest level on said drum are operatively disposed at least 5 centimeters from the ground during a front portion of their trajectory, as defined with respect to a forward movement of the haymaking machine.
3 more elements
A haymaking machine for the windrowing, tedding or turning of crops,
- comprising in combination:
- at least one drum rotatable about an upright axis,
- a flexible and deformable skirt arranged to follow the contour of the ground and being connected near the bottom of said drum for sweeping up the crop to carry it on its upper surface, and
- a plurality of rigid, outwardly extending arms rigidly secured to the exterior of said drum above said skirt to aid in displacing the crop, each arm having a length at least 20% of the drum radius,
- said arm being disposed on different drum levels, and wherein the extremeties of the arms disposed at the lowest level on said drum are operatively disposed at least 5 centimeters from the ground during a front portion of their trajectory, as defined with respect to a forward movement of the haymaking machine,
- said skirt having an external contour defined by a minimum diameter being at least equal to, or exceeding a maximum diameter of the operative trajectory of the said rigid arms.
3 more elements
Dependencies are inferred from the claim text.