Bulldozer assembly with locking pin and method
AssigneeCaterpillar Tractor Co.
InventorRobert J. Trayler
Life of this patent
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Abstract
A bulldozer assembly comprises a C-frame pivotally connected on a forward end of a tractor and a blade universally connected on a forward end of the frame by a ball and socket connection. A pair of laterally spaced push arms have forward ends thereof universally connected to the blade and rearward ends thereof adjustably mounted on the frame for selectively angling the blade relative to the frame. Prior to such angling, a vertically disposed pin is inserted in the ball and socket connected to prevent tipping of the blade relative to the frame.
Claims12
In a bulldozer assembly of the type comprising a normally horizontally disposed frame, a normally vertically disposed blade positioned forwardly of said frame, a ball and socket connection universally connecting said blade to said frame and a pair of laterally spaced push arms having forward ends thereof pivotally connected to said blade and having rearward ends thereof adjustably mounted on said frame for selectively angling said blade relative to said frame, the invention comprising pin means removably mounted in said ball and socket connection for preventing tipping of said blade relative to said frame upon angling thereof.
A method for adjusting the angling of a blade relative to a frame of a bulldozer assembly wherein the blade is universally connected to said frame by a ball and socket connection comprising the steps of
- inserting a pin in said ball and socket connection to prevent tipping of said blade relative to said frame, and
- angling said blade relative to said frame.
Dependencies are inferred from the claim text.