Mobile crane having telescoping outriggers and power operated screw means for same
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United States of America Patent
Stats
-
Jul 26, 1983
Grant Date -
N/A
app pub date -
Nov 7, 1980
filing date -
Nov 7, 1980
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A mobile crane having an extensible boom which is swingable about both a vertical and horizontal axis and having telescoping outriggers that extend transversely of the main frame of the crane and which outriggers are also pivotally mounted about a vertical axis for swinging between stowed position along the main frame and an extending crane operative position. Power operated extension means are provided for telescopingly adjusting the outriggers and includes a reversible hydraulic motor for rotating a threaded shaft. The telescoping outrigger includes a hollow box in which a hollow beam is telescopingly mounted.
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Family
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Cited Art Landscape
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