High performance drive tire arrangement for agricultural tractors
OwnerThorvald G. Granrydinventor
Life of this patent
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Abstract
A lightweight device for obtaining improved performance of rubber tired vehicles. The arrangement has high-strength, thin-gauged traction intensifying means secured to the driving member for a tire, having a smooth or shallow tread, providing improved drawbar performance in fields when said traction intensifying means are engaged and improved traction and riding characteristics on hard grounds and pavements when said traction intensifying means are disengaged; and includes actuating means for rapid and convenient conversion between "steel-drive" for fields and "rubber-drive" for hard surfaces, and vice versa.
Claims13
Traction intensifying means for a rubber tired vehicle having a power driven wheel, including a tire, a rim and a hub, said traction intensifying means comprising
- a structural member secured to the rim of the tire,
- frame means secured to said structural member for forming an attachment base,
- a series of ground engaging spades operatively connected to the tire in a position to be movable between ground engaging and ground avoiding positions,
- each of said ground engaging spades having a base portion, a sole portion and a lug portion,
- a plurality of anchor means operatively connected to said ground engaging spades to facilitate movement thereof between said ground engaging and ground avoiding positions,
- each one of said anchor means being secured to said frame,
- at least two lengths of wire rope, each one of said lengths being supported by said series of anchor means for rotational movement relative thereto, and
- coupling means for fixedly securing said base portion of each of said ground engaging spades onto said lengths of wire rope, such that rotational movement of said wire rope will move said ground engaging spades between said ground engaging and ground avoiding positions.
Dependencies are inferred from the claim text.