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US 4,434,994 AGranted
Boom axle
OwnerJulien H. Pepininventor
Life of this patent
Estimating the term…
Abstract
A crane boom is supported during transport such that it may pivot about a horizontal axis located forward of the terrain contacting wheels of a support assembly. The support assembly is detachably connected to the boom and has a telescoping frame which is pivotally attached to the boom adjacent its forward end.
Claims11
Apparatus for providing support for an elongated crane boom during over-terrain movement thereof, the boom being attached at a first end to a vehicle, said apparatus comprising:
- frame means, said frame means including a main body portion and an extendable forward portion;
- at least a first wheel set, said wheel set being mounted from said frame means main body portion and including an axle, said first wheel set further including means resiliently coupling said axle to said frame means;
- means affixed to said frame mean forward portion and defining a pivot axis which is parallel to and displaced from said wheel set axle;
- and
- means for detachably and rotatably coupling the boom to said pivot axis defining means intermediate the length of said boom whereby relative motion between a portion of said boom and said axle may occur.
2 more elements
Dependencies are inferred from the claim text.