A linear jack includes a first sleeve disposed at least partially within a second sleeve (the first sleeve and the second sleeve collectively a high speed assembly), a third sleeve disposed at least partially within the first sleeve, and a translating screw disposed at least partially within the third sleeve (the third sleeve and the translating screw collectively a low speed assembly). The linear jack further includes a fourth sleeve fixed to the second sleeve and configured to translate therewith. The fourth sleeve extends over the third sleeve and transfers axial loads between the second sleeve and the third sleeve to extend the high speed assembly together with the low speed assembly from an outer case of the linear jack.
TWO SPEED TRAILER JACK
2023-03-16
Patent
Elektronische Ressource
Englisch
IPC: | B60S SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR , Warten, Reinigen, Instandsetzen, Unterstützen, Anheben oder Rangieren von Fahrzeugen, soweit nicht anderweitig vorgesehen / 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 |