An automobile jack includes a housing having opposed side and end walls defining an interior area. A ramp extends from the housing and includes upper and lower ends. A platform defines a tire-receiving surface. The automobile jack includes a first linkage having an upper arm pivotally connected to a lower arm along a first horizontal axis and a second linkage having an upper arm pivotally connected to a lower arm along a second horizontal axis. Each upper arm is pivotally connected to the platform and each lower arm is pivotally connected to the housing. A threaded yoke is coupled to the second linkage. The jack includes a power screw for selectively changing a distance between the first and second horizontal axes to move the platform between a retracted configuration at which the tire-receiving surface even with the ramp and a raised configuration above the ramp.
Automobile jack system
2019-01-29
Patent
Elektronische Ressource
Englisch
IPC: | 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 |