Wheel adjustment apparatus
OwnerChristopher Galikinventor
Life of this patent
Estimating the term…
Abstract
An adjustable lift, such as a boat lift, or an adjustable apparatus mountable to a boat lift, comprising a frame supporting a keyway, a shaft and a screw along which a hub assembly travels. An axle may extend from the hub assembly and support a wheel, such that translation of the hub assembly along screw raises and lowers the wheel with respect to the frame members of the lift. In this way, the lift may be rolled into place, with its wheels then raised, so that frame members and/or feet of the lift rest on a lake bed or other surface. When wanting to move the lift, a user may rotate the screw in an opposite direction, lowering the wheel with respect to the frame member, freeing lift frame members and feet from the lake bed and allowing the user to roll the lift away.
Claims19
An apparatus for adjusting the height of a wheel relative to a member, comprising:
- a frame having a base, a first support extending from said base and a second support extending from said base and spaced from said first support;
- a screw extending between said first and second supports, said screw rotatable within said first and second supports, said screw having an end with torque transmitting surfaces for rotating said screw;
- a hub assembly movable between said first and second supports, said hub assembly threadingly engaged with said screw;
- and
- an axle coupleable to said hub for mounting a tire to said apparatus.
An apparatus for adjusting the height of a wheel mounted to a member of a boat lift, comprising:
- a frame having a base, a first support and a second support extending generally normal to said base, said base having a plurality of pairs of openings spaced proximate opposite sides of said base;
- a keyway and a shaft, said keyway abutting said base and said shaft coupled to said keyway, said keyway and said shaft extending between said first and second supports along a central plane of said base;
- a screw spaced from said shaft and extending between said first and second supports along a central plane of said base;
- a hub assembly slidably engaged with said keyway and said shaft, and threadingly engaged with said screw;
- said hub assembly including a hub and a spindle at least partially embedded in said hub;
- said hub assembly further including a protrusion at an end of said hub for coupling an axle to said hub assembly;
- and
- a plate for mounting said base to said member, said member located between said base and said plate.
A boat lift comprising:
- a lift frame comprising a plurality of lift frame members, including a plurality of generally parallel members;
- a plurality of wheel frames coupled to said lift frame, wherein at least one wheel frame is coupled to one of said generally parallel members and at least a second wheel frame is coupled to a second one of said generally parallel members;
- each of said wheel frames comprising a screw threadingly engaged with a hub assembly, each hub assembly coupled to an axle supporting a wheel;
- wherein rotating said screw changes a height of a respective wheel relative to a respective wheel frame.
Dependencies are inferred from the claim text.