Caster wheel with constant force mechanism

A wheel assembly includes a wheel having an axle, and a constant force mechanism coupled to the wheel. The constant force mechanism includes a horizontal support, a horizontal carriage associated with the horizontal support, a vertical support oriented perpendicular with respect to the horizontal su...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Sigman, Greg, Brown, Michael V, Finnegan, Paul F, Goncalves, Fernando D
Format:	Patent
Sprache:	eng
Schlagworte:	ALARM SYSTEMS AXLES FOR WHEELS OR CASTORS CASTORS HAND-PROPELLED VEHICLES, e.g. HAND CARTS, PERAMBULATORS HAULING HOISTING HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDEDFOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCEDIRECTLY TO THE SURFACE OF A LOAD INCREASING WHEEL ADHESION LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS LIFTING ORDER TELEGRAPHS PERFORMING OPERATIONS PHYSICS SIGNALLING SIGNALLING OR CALLING SYSTEMS SLEDGES TRANSPORTING VEHICLE SUSPENSION ARRANGEMENTS VEHICLE WHEELS VEHICLES IN GENERAL
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Beschreibung
Zusammenfassung:	A wheel assembly includes a wheel having an axle, and a constant force mechanism coupled to the wheel. The constant force mechanism includes a horizontal support, a horizontal carriage associated with the horizontal support, a vertical support oriented perpendicular with respect to the horizontal support, a vertical carriage associated with the vertical support, and a rigid arm that is pivotally coupled with the horizontal carriage, the vertical carriage, and the axle. The rigid arm is coupled with the vertical carriage at a point intermediate where the rigid arm is coupled with the horizontal carriage and the axle. The horizontal carriage is capable of being urged along the horizontal support, and the vertical carriage is capable of being urged along the vertical support.