A fast-adjust trailer jack has three telescoping tubular segments, an upper, an intermediate and a lower. A lead screw is used to operatively couple the upper to the intermediate and a tension spring is coupled between the intermediate and the lower to normally urge the retraction of the lower into the intermediate. A spring-biased pin and hole based detent mechanism is employed to allow setting of the degree of extension of the lower tubular segment with respect to the intermediate tubular segment.
FAST ADJUST TRAILER JACK
16.07.2015
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 |