Opposed-rope hoist driven telescoping mast

An opposed-rope driven telescoping mast assembly includes a stationary support and a longitudinal mast comprising a longitudinal section joined to move relative to the stationary support. A drive assembly drives the longitudinal mast and includes a frame and a rotatable drum assembly mounted to the...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: JUNG THOMAS E, DOEBLER GARY R, STURM, JR. ALBERT J
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:An opposed-rope driven telescoping mast assembly includes a stationary support and a longitudinal mast comprising a longitudinal section joined to move relative to the stationary support. A drive assembly drives the longitudinal mast and includes a frame and a rotatable drum assembly mounted to the frame. A first rope is joined to the drum assembly and to the longitudinal mast to pull the longitudinal section in a first direction, while a second rope is joined to the drum assembly and to the longitudinal mast to pull the longitudinal section in a second direction. A sensor is operably coupled to the drive assembly to sense overload tension in the first rope or the second rope.