Non-articulated scraper arrangement
AssigneeCaterpillar Tractor Co.
InventorRobert N. Stedman
Life of this patent
Estimating the term…
Abstract
A scraper comprises a front frame having an operator's station mounted forwardly thereon. A generally vertically disposed suspension cylinder is pivotally interconnected between the front frame and each one of a pair of front roadwheels for permitting the roadwheels to pivot in a horizontal plane for steering purposes. A steering linkage is pivotally interconnected between the front frame and the roadwheels to effect such steering. A rear frame, having a scraper bowl secured thereon, is mounted on a pair of rear roadwheels. A pair of draft arms, disposed on either side of the scraper bowl, are pivotally interconnected directly to the scraper bowl and to the front frame along with a lift cylinder for selectively raising and lowering the scraper bowl relative to the front frame.
Claims12
A non-articulated scraper disposed on a longitudinal axis thereof comprising
- a front frame,
- an operator's station mounted forwardly on said front frame,
- a pair of front roadwheels,
- a pair of generally vertically disposed and laterally spaced suspension cylinder means each connected at its upper end to said front frame and at its lower end to a respective one of said roadwheels, said cylinder means acting as a king pin means for permitting said front roadwheels to pivot in a horizontal plane for steering purposes,
- steering linkage means pivotally interconnected between said front frame and said front roadwheels for selectively pivoting said front roadwheels,
- a rear frame mounted on a pair of rear roadwheels,
- a scraper bowl mounted on said rear frame,
- a pair of draft arms disposed on either side of said scraper bowl and pivotally interconnected directly to said scraper bowl and to said front frame, and
- actuating means interconnected to said scraper bowl and to said front frame for selectively raising and lowering said scraper bowl relative to said front frame.
Dependencies are inferred from the claim text.