B - Operations – Transporting – 62 – D
Patent
B - Operations, Transporting
62
D
305/26
B62D 55/30 (2006.01) B62D 55/084 (2006.01)
Patent
CA 1267669
Abstract of the Disclosure Method And Apparatus For Tensioning Frictionally Driven, Ground Engaging Belts 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 vehiclular 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.
521922
Caterpillar Inc.
Kirby Eades Gale Baker
LandOfFree
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