Vehicle jack

Claim 2

A vehicle jack having a support leg and a support arm pivotably supported on said support leg for movement about a pivot axis by a handle-operated thread spindle running in a spindle nut and a spindle bearing pivotably mounted one in each of the upper end of the support leg and the support arm, the support arm having a support plate at its distal end for use in setting, against a vehicle floor at a load carrying point thereof and is supported on the support arm about an axis of rotation parallel to the said pivot axis, said axis of rotation lying immediately adjacent the underside of the support plate with respect to the vehicle floor; said support plate having a depression for receiving a protrusion of such vehicle floor; said depression being located beside said axis of rotation when said support plate engages such vehicle floor.

Claim 3

A vehicle jack having a support leg; a support arm pivotably supported on said support leg for movement about a pivot axis; a handle-operated threaded spindle rotatably mounted on upper end portions of the support leg and the support arm in such manner whereby spindle rotation changes the angular disposition of said support arm relative to said support leg; said support arm having a support plate at its distal end for use in setting against a vehicle floor at a load-carrying point thereof; said support plate being supported on the support arm about an axis of rotation parallel to the said pivot axis; said axis of rotation lying immediately adjacent the underside of the support plate with respect to the vehicle floor; said support plate having a depression for receiving a protrusion of such vehicle floor; said depression being located beside said axis of rotation when said support plate engages such vehicle floor.

Claim 4

A vehicle jack having a support leg; a support arm pivotably supported on said support leg for movement about a pivot axis; a handle-operated threaded spindle rotatably mounted on upper end portions of the support leg and the support arm in such manner whereby spindle rotation changes the angular disposition of said support arm relative to said support leg; said support arm having a support plate at its distal end for use in setting against a vehicle floor at a load-carrying point thereof; said support plate being supported on the support arm about an axis of rotation parallel to the said pivot axis; said axis of rotation lying immediately adjacent the underside of the support plate with respect to the vehicle floor; said support plate having a depression for receiving a protrusion of such vehicle floor; said depression being located beside said axis of rotation when said support plate engages such vehicle floor.

Claim 5

A jack according to claims 1 or 2 wherein the support plate is provided with a V- or U-shaped depression for a folded portion of a vehicle floor forming said protrusion.

Claim 6

A jack according to claims 1 or 2 wherein the said axis of rotation lies behind and adjacent to the depression in the support plate with respect to the support leg.

Claim 7

A jack according to claims 1 or 2 wherein the said axis of rotation is immediately adjacent to the depression in the support plate.

Claim 8

A jack according to claims 1 or 2 wherein the said axis of rotation is defined by a plate support pin and the area of the support plate for lying against the vehicle floor is large in relation to the projected area of the pin.

Claim 9

A jack according to claims 1 or 2 wherein the support plate has support faces for lying against the vehicle floor lying on both sides of the axis of rotation of the support plate.

Claim 10

A jack according to claim 7 wherein said depression lies between said support faces.

Claim 11

A jack according to claims 1 or 2 wherein two tongues formed out of the support plate extend around means defining said axis of rotation.

Claim 12

A jack according to claim 9 wherein the tongues formed out of the support plate are arranged either both against the inner or both against the outer face of the side walls of a Ushaped support arm.

Claim 13

A jack according to claims 1 or 2 wherein the support plate has a stop which cooperates with the support arm and limits the possibilities of hinging movement away from the support leg.

Claim 14

A jack according to claims 1 or 2 wherein the axis of rotation is defined by a cylindrical pin mounted in the side walls of a U-shaped support arm and rotatably supports the support plate.

Claim 15

A jack according to claims 1 or 2 wherein a recess corresponding to the depression in the support plate is present in side wall portions of said support arm.