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US 7,252,347 B2Granted
Belt over mid-rollers
AssigneeCamoplast Inc.
InventorDavid Gingras
Life of this patent
Estimating the term…
Abstract
A wheel structure driven by an endless track belt tensioned around a drive wheel and an idler wheel thereof, comprising a plurality of supporting mid-roller wheels provided between the drive wheel and the idler wheel, a second endless belt being tensioned around this plurality of mid-rollers.
Claims8
A wheel structure for a track-propelled vehicle driven by a first belt, made of a polymer, tensioned around a drive wheel, an idler wheel and a plurality of supporting mid-roller wheels between the drive wheel and the idler wheel, wherein
- a second track belt is tensioned around said plurality of supporting mid-roller wheels, between an inner surface of the first belt and support surfaces of the supporting mid-rollers, in contact with said inner surface of the first belt, and is driven by friction, said second belt protecting the first belt and said supporting mid-roller wheels against wear by protecting said supporting mid-rollers against flowable debris ingested between the inner surface of the first belt and the support surfaces of the supporting mid-rollers.
Dependencies are inferred from the claim text.