A crank assembly with an adjustable handle assembly that includes a handle mounted on bearings and on an axle such as a self-locking, quick-release pin. The pin allows the handle assembly to be removably positioned in any of a number of holes in the crank body allowing choice of high leverage or high speed during crank operation. While designed with hand-cranked trailer jacks in mind, the crank assembly can be used in various applications requiring hand cranking by suitable choice of crank interface and dimensions. An adapter at the crank interface may be used alone with a power drive tool or by hand with the crank assembly.
CRANK WITH ADJUSTABLE BEARING HANDLE AND ADAPTER
2024-01-04
Patent
Electronic Resource
English
IPC: | B62M RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES , Antrieb von Radfahrzeugen oder Schlitten durch den Fahrer / 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 / G05G CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY , Steuer- oder Regelvorrichtungen oder Steuer- oder Regelsysteme gekennzeichnet ausschließlich durch mechanische Einzelheiten |