A drive mechanism including a traction portion 18a, a drive receiving portion 20a and a driven portion 16a. The traction portion encircles and is rotatable about an axis A. The drive-receiving portion encircles the axis and is fixed to rotate with the traction 5 portion. The driven portion engages the drive-receiving portion to drive the traction portion to rotate. The traction portion is moveable relative to the driven portion to a plurality of positions along the axis. At least one of the drive-receiving portion and the driven portion has a length along which it is engageable by the other of the drive receiving portion and the driven portion such that the drive-receiving portion and the 10 driven portion co-operate to drive the traction portion at its plurality of positions along the axis.
Vehicle and drive mechanism
2017-09-14
Patent
Electronic Resource
English
IPC: | B61D Einzelheiten oder Arten des Wagenaufbaus von Eisenbahnfahrzeugen , BODY DETAILS OR KINDS OF RAILWAY VEHICLES / B60F VEHICLES FOR USE BOTH ON RAIL AND ON ROAD , Fahrzeuge für den Verkehr sowohl auf Schienen als auch auf Straßen / B66F HOISTING, LIFTING, HAULING, OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD , Hub-, Verhol- oder Schubvorrichtungen, soweit nicht anderweitig vorgesehen, z.B. Vorrichtungen mit unmittelbarer Krafteinwirkung auf die Last |