Traversing hoists – Boom or mast – Extensible by sliding sections
Patent
1996-08-05
1998-02-17
Brahan, Thomas J.
Traversing hoists
Boom or mast
Extensible by sliding sections
152118, B06C 2306
Patent
active
057183457
ABSTRACT:
A carrier track system for a multi-section telescopic boom structure having a base section, a mid section and a fly section. A pair of flexible tracks carrying flexible hydraulic hoses and electrical cables are positioned within the base and fly sections and are respectively connected between the inner end of the mid section and the bottom wall of the base section; and the inner end of the mid section and the bottom wall of the fly section. A pair of spaced, longitudinally extending channels are positioned within the base and fly sections for guiding the flexible tracks, reinforcing the side walls of the base and fly sections, providing housing for fixed hydraulic and electrical conduits, and providing a support for the wear pads on the inner end of the mid section. A dual rod hydraulic cylinder is connected between the telescopic boom section so that each section can be selectively operated independently, or in a synchronized or proportional manner relative to each other.
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Brahan Thomas J.
Kidde Industries, Inc.
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