Resilient tires and wheels – Tires – resilient – Anti-skid devices
Patent
1975-06-16
1977-07-19
Hoffman, Drayton E.
Resilient tires and wheels
Tires, resilient
Anti-skid devices
152190, 152217, 152221, 152222, B60C 2700, B60C 2710
Patent
active
040362736
ABSTRACT:
Traction augmenting ribs are formed of a semi-rigid material particularly well-suited for placement around a vehicle tire or the like. Each rib is formed of a pair of side arms and an interconnecting central portion which are arranged in a generally U-shaped configuration to fit around the vehicle tire. The side arms are formed of a bow-like spring arrangement which is flexible in response to application of forces at the ends thereof in a radially inward direction relative to the tire so that the side arm ends are positioned to displace the rigid interconnecting elements beyond the contour of the tire. Interconnecting linkages or cables are passed through the rib ends and are tightened in a circumferential direction so as to apply the radially inward force to the rib side arms. Reinforcing steel wires can be included throughout the length of each rib and reinforcing crossbars can be embedded within the central portion of each rib so as to facilitate accommodation of tires of varying tread widths. Inclusion of an easily attached cable take-up arrangement between the ends of the circumferential linkage permits attachment of the assembly to tires of differing circumferences. Studs can be embedded in the central portion of the ribs.
REFERENCES:
patent: 1287512 (1918-12-01), Swanson
patent: 2290398 (1942-07-01), Wellington
patent: 2423759 (1947-07-01), Edwards
patent: 2540230 (1951-02-01), Andrews
patent: 2936016 (1960-05-01), Stack
patent: 3117613 (1964-01-01), Michnoff
patent: 3506051 (1970-04-01), Mathews
patent: 3856068 (1974-12-01), Callaghan et al.
Hoffman Drayton E.
Reilly John E.
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