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AssigneeDemag Cranes & Components GmbH
InventorsJürgen Heun, Markus Löbel, Klaus-Jürgen Winter
Estimating the term…
Apparatus for slip-free determination of a cable motion in longitudinal cable direction for a hoist, in particular a pneumatically operated cable balancing hoist, which includes a housing, and a cable drum having an outer surface area formed with a groove for receiving a cable. The cable drum is rotatably supported in the housing and moveable in a longitudinal direction in such a way that a run-off point of the cable is at a same location at any time. A sensor is provided to detect markings of the cable drum, as the markings move relative to the sensor during rotation of the cable drum, for delivering an output signal. The groove defines a helical ridge in parallel relationship to the groove, wherein the markings are provided along the ridge, and wherein the sensor is secured to the housing in confronting relationship to the ridge.
Apparatus for ascertaining a cable motion in longitudinal cable direction for a hoist, in particular a pneumatically operated cable balancing hoist, having a housing, and a cable drum which has an outer surface area formed with a groove for receiving a cable, wherein the cable drum is rotatably supported in the housing and moveable in a longitudinal direction in such a way that a run-off point of the cable is at a same location, said apparatus comprising a sensor for detecting markings of the cable drum to deliver an output signal as the markings move relative to the sensor during rotation of the cable drum, wherein the groove defines a helical ridge in parallel relationship to the groove, wherein the markings are provided along the ridge, and wherein the sensor is secured to the housing in opposition to the ridge.
A hoist, comprising:
A cable drum for a hoist, comprising:
Dependencies are inferred from the claim text.