Hydraulic cylinder mounting assembly

Claim 2

THe combination with a tractor and an earthworking implement, a hydraulic lift jack for raising and lowering said implement, said jack having relatively movable piston and cylinder members, a mounting assembly for universally supporting the cylinder member of said jack on said tractor, the improvement wherein said mounting assembly includes a pair of spaced support brackets fixed to said tractor, a collar surrounding an intermediate portion of said cylinder member, a first pair of axially aligned pivot pins projecting outwardly from said collar, a second pair of axially aligned pivot pins projecting outwardly from said collar along an axis substantially normal to a center axis passing through said first pair of pivot pins, a pair of axially aligned oblong apertures formed in said support brackets, each of said apertures having an open end for receiving one of said first pair of pivot pins and serving to accommodate means for pivotally supporting said one of said first pair of pivot pins, a pair of pivot support members rigidly secured to said cylinder member, each of said support members having an opening therein for pivotally supporting one of said second pair of pivot pins whereby said jack is movable about mutually perpendicular axes passing through said first pair and second pair of pivot pins.

Claim 3

The combination with a tractor and an earthworking implement, a hydraulic lift jack for raising and lowering said implement, said jack having relatively movable piston and cylinder members, a mounting assembly for universally supporting the cylinder member of said jack on the forward end of said tractor, the improvement wherein said mounting assembly includes a pair of laterally spaced support brackets fixed to said tractor, a collar surrounding an intermediate portion of said cylinder member, a first pair of axially aligned pivot pins projecting outwardly from said collar, a second pair of axially aligned pivot pins projecting outwardly from said collar along an axis substantially normal to a center axis passing through said first pair of pivot pins, a pair of transversely aligned keyhole-shaped apertures formed in said support brackets, each of said apertures having an open end for receiving one of said first pair of pivot pins and having an end cap mounted therein that pivotally supports one of said first pair of pivot pins, a pair of pivot support members rigidly secured to said cylinder member and lying in a vertical plane extending longitudinally of the tractor, each of said support members having an opening therein for pivotally supporting one of said second pair of pivot pins whereby said jack is movable about mutually perpendicular axes passing through said first pair and second pair of pivot pins.

Claim 4

The combination with a tractor and an earthworking implement, a hydraulic lift jack for raising and lowering said implement, said jack having relatively movable piston and cylinder members, a mounting assembly for universally supporting the cylinder member of said jack on the forward end of said tractor, the improvement wherein said mounting assembly includes a pair of laterally spaced support brackets fixed to said tractor, a collar surrounding an intermediate portion of said cylinder member, a first pair of axially aligned pivot pins projecting outwardly from said collar, a second pair of axially aligned pivot pins projecting outwardly from said collar along an axis substantially normal to a center axis passing through said first pair of pivot pins, a pair of transversely aligned keyhole-shaped apertures formed in said support brackets, each of said apertures having an open end for receiving one of said first pair of pivot pins and having an end cap mounted therein that pivotally supports one of said first pair of pivot pins, a pair of pivot support members rigidly secured to said cylinder member and lying in a vertical plane extending longitudinally of the tractor, each of said support members having an opening therein for pivotally supporting one of said second pair of pivot pins whereby said jack is movable about mutually perpendicular axes passing through said first pair and second pair of pivot pins.

Claim 5

The combination with a tractor supporting a blade assembly for movement about a transverse horizontal axis and an axis extending longitudinally of the tractor, a hydraulic lift jack for moving said blade assembly between a lowered dig position and a raised carry position about said transverse axis, said jack having relatively movable piston and cylinder members, a mounting assembly for universally supporting the cylinder member of said jack on the forward end of said tractor, the improvement wherein said mounting assembly includes a pair of laterally spaced support brackets fixed to said tractor, a collar surrounding an intermediate portion of said cylinder member, a first pair of axially aligned pivot pins projecting outwardly from said collar, a second pair of axially aligned pivot pins projecting outwardly from said collar along an axis substantially normal to a center axis passing through said first pair of pivot pins, a pair of transversely aligned apertures formed in said support brackets, an end cap secured to each of said support brackets and having a portion extending into the aperture, each of said portions having a cylindrical bore that pivotally supports one of said first pair of pivot pins, a pair of generally C-shaped pivot support members rigidly secured to said cylinder member and lying in a vertical plane extending longitudinally of the tractor, each of said support members having an opening therein for pivotally supporting one of said second pair of pivot pins whereby said jack is movable about mutually perpendicular axes passing through said first pair and second pair of pivot pins.

Claim 6

The combination with a tractor supporting a blade assembly for movement about a transverse horizontal axis and an axis extending longitudinally of the tractor, a hydraulic lift jack for moving said blade assembly between a lowered dig position and a raised carry position about said transverse axis, said jack having relatively movable piston and cylinder members, a mounting assembly for universally supporting the cylinder member of said jack on the forward end of said tractor, the improvement wherein said mounting assembly includes a pair of laterally spaced support brackets fixed to said tractor, a collar surrounding an intermediate portion of said cylinder member, a first pair of axially aligned pivot pins projecting outwardly from said collar, a second pair of axially aligned pivot pins projecting outwardly from said collar along an axis substantially normal to a center axis passing through said first pair of pivot pins, a pair of transversely aligned apertures formed in said support brackets, an end cap secured to each of said support brackets and having a portion extending into the aperture, each of said portions having a cylindrical bore that pivotally supports one of said first pair of pivot pins, a pair of generally C-shaped pivot support members rigidly secured to said cylinder member and lying in a vertical plane extending longitudinally of the tractor, each of said support members having an opening therein for pivotally supporting one of said second pair of pivot pins whereby said jack is movable about mutually perpendicular axes passing through said first pair and second pair of pivot pins.