Abstract A resiliently tiltable load supporting base for vehicle jacks is described. The base has a ground engaging plate having a substantially flat bottom with upturned peripheral edges and a rounded depression in a central region of the bottom. A load receiving plate having a substantially flat top with down-turned peripheral edges is mounted within the ground engaging base. A generally spherical socket extends downwardly in a central region of the top of the load receiving plate and this socket has a generally flat bottom with a downwardly directed rounded projection which mates with the rounded depression in the ground engaging base. An elastomeric means, e.g. a hard rubber block, is mounted between the ground engaging base and the load receiving plate in a region between the central socket and downturned peripheral edges. This hard rubber is positioned on all sides of the socket and maintains the two parts of the base in paralled relationship while permitting some resilient tilting of a screwjack post and the load receiving plate with respect to the ground engaging member.
A resiliently tiltable load supporting base for vehicle jacks, comprising (a) a rectangular metallic base member having a substantially flat bottom with upturned peripheral edges and a rounded ridge extending along a central axis thereof, said ridge being bifurcated at a central region to form a central dishshaped depression in said bottom, (b) a metallic load receiving plate having a substantially flat top with downturned peripheral edges terminating in a narrow peripheral flange, said flange having downwardly directed, rounded projections in mid-points of opposite ends, said projections being adapted to rest on said base member ridge and a socket extending downwardly in a central region of said top, said socket being adapted to receive a jack tube and having in the bottom thereof a downwardly directed rounded projection which mates with said dish-shaped depression in the base member and (c) elastomeric slab means mounted between said base member and load receiving plate in a region between the central socket and downturned peripheral edges, whereby the load receiving plate is resiliently tiltable with respect to the base member along a substantially horizontal axis.
Claim 2
Dependent Claim
182 words
A resiliently tiltable load supporting base for vehicle jacks, comprising (a) a rectangular metallic base member having a substantially flat bottom with upturned peripheral edges and a rounded ridge extending along a central axis thereof, said ridge being bifurcated at a central region to form a central dishshaped depression in said bottom, (b) a metallic load receiving plate having a substantially flat top with downturned peripheral edges terminating in a narrow peripheral flange, said flange having downwardly directed, rounded projections in mid-points of opposite ends, said projections being adapted to rest on said base member ridge and a socket extending downwardly in a central region of said top, said socket being adapted to receive a jack tube and having in the bottom thereof a downwardly directed rounded projection which mates with said dish-shaped depression in the base member and (c) elastomeric slab means mounted between said base member and load receiving plate in a region between the central socket and downturned peripheral edges, whereby the load receiving plate is resiliently tiltable with respect to the base member along a substantially horizontal axis.
Claim 3
Dependent Claim
23 words
A device according to claim 1 wherein the socket is substantially cylindrical with a flat bottom having a downwardly directed central, dish-shaped projection.
Claim 4
Dependent Claim
18 words
A device according to claim 1 wherein said elastomeric slab means comprises hard synthetic or natural rubber blocks.
Claim 5
Dependent Claim
20 words
A device according to claim 3 wherein four elastomeric blocks are positioned at four corners beneath said load receiving plate.
Claim 6
Dependent Claim
15 words
A device according to claim 1 having a screw jack post mounted in said socket.