Tow hitch with movable coupling
AssigneePremium Mining Services Pty Ltd
InventorsDale Peter Jacobson, Jamie Young, Brett James Reddish
Life of this patent
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Abstract
A tow hitch with a main body which is adapted to be fixed relative to a towing vehicle, and a coupling movable relative to the body between a first position arranged to engage a tow bar, and a second position for towing.
Claims9
A tow hitch with a main body which is adapted to be fixed relative to a towing vehicle, and a coupling movable relative to the body between a first position arranged to engage a tow bar, and a second position for towing;
- wherein the coupling is connected to an actuator to lift and lower the coupling relative to the main body;
- wherein the coupling is mounted on a slide and the actuator includes a main cylinder mounted in the body of the tow hitch with a piston connected relative to the slide to drive the slide up and down in order to raise and lower the coupling;
- and
- a latching pin to mechanically lock the coupling in the second position for towing;
- wherein the latching pin is driven by a latching cylinder that is sequenced to automatically lock the piston when the coupling is lifted into the second position for towing.
A hitch for interconnecting a towing vehicle with a towed apparatus including a main body, adapted to be fixed to one of the vehicle or apparatus, and a coupling movable between a first position, for engaging a tow bar of the other one of the vehicle or apparatus, and a second position for towing, wherein the hitch further includes a linchpin arranged to pass through the coupling as the coupling is lifted into the second position, to lock the tow bar into the hitch for towing;
- an actuating cylinder for moving the coupling between the first and second positions;
- a latching pin to mechanically lock the cylinder in the second position;
- and
- wherein the latching pin is driven by a latching cylinder that is sequenced to automatically lock a piston of the actuating cylinder when the coupling is lifted into the second position for towing.
Dependencies are inferred from the claim text.