Method and apparatus for tensioning frictionally driven, ground

Details Method and apparatus for tensioning frictionally driven, ground Method and apparatus for tensioning frictionally driven, ground

1985-12-09

1987-07-21

Love, John J.

Motor vehicles

Special driving device

Portable track

180 952, 180 954, 305 32, B62D 5530

Patent

active

046811770

ABSTRACT:
Method and apparatus for tensioning an endless, inextensible, elastomeric ground engaging belt into frictional driven engagement with a driver wheel structure, oscillatably supporting an axle on which an idler wheel structure associated with the drive wheel structure is mounted, and accommodating recoil of the idler wheel structure. Such associated wheel structures are arranged on each lateral side of a vehicular main frame and are entrained by the ground engaging belt. The idler wheel structures are rotatably mounted on opposite ends of the axle extending laterally relative to the main frame. The axle is oscillatably mounted to the main frame about an oscillation axis parallel to the vehicle's longitudinal axis to accommodate uneven terrain and about a vertical axis to permit substantially independent recoil of the respective idler wheel structures. A pair of spring assemblies mounted on opposite lateral sides of the oscillation axis biasingly pull the axle in a direction away from the driver wheel structures to maintain the desired orientation of the axle about its laterally extending axis of rotation.

REFERENCES:
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patent: 4221272 (1980-09-01), Kell
patent: 4283093 (1981-08-01), Cline
patent: 4519654 (1985-05-01), Satzler et al.

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