Hand truck
First Claim
1. A hand truck comprising:
- a body;
a load support platform extending from a lower end of the body;
an axle secured in fixed relationship to the body;
a pair of wheels located at the lower end of the body, each including;
an inner annular race;
an outer annular ground engaging portion that surrounds the inner race;
bearings disposed between the inner and outer races so that the inner and outer races are rotatable relative to each other;
at least one guide member fixedly mounted within an inner area defined by the inner race and fixedly mounted within, and secured at opposite ends thereof to, the inner race so as to be rotatable therewith;
a slide member slidably mounted to the at least one guide member so that the slide member is freely movable across the inner race; and
the axle being mounted to the slide member of each wheel so that the axle is moveable with the slide members across the inner race and between generally opposite sides of the inner race so that the position of the axle is movable relative to a central axis of the wheel and so that the body can pivot with the inner race relative the outer race.
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Accused Products
Abstract
A hand truck including a body, a load supporting platform, an axle, and a wheel assembly having a pair of wheels. Each wheel has an inner race that is freely rotatable within an outer ground-engaging portion via bearings disposed there between. Each wheel also includes at least one guide member that is mounted to the inner race so that rotation of the guide member rotates the inner race. A slide member is secured to the guide member so that the slide member is movable along the guide member. The axle is attached to the slide member and to the frame so that the body and the guide member are in a fixed parallel relationship. Accordingly, if the body is inclined, the guide member is likewise inclined to serve as a ramp. Due to this structure, a user can easily tip the hand truck, traverse obstacles, and stabilize the hand truck.
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Citations
20 Claims
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1. A hand truck comprising:
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a body; a load support platform extending from a lower end of the body; an axle secured in fixed relationship to the body; a pair of wheels located at the lower end of the body, each including; an inner annular race; an outer annular ground engaging portion that surrounds the inner race; bearings disposed between the inner and outer races so that the inner and outer races are rotatable relative to each other; at least one guide member fixedly mounted within an inner area defined by the inner race and fixedly mounted within, and secured at opposite ends thereof to, the inner race so as to be rotatable therewith; a slide member slidably mounted to the at least one guide member so that the slide member is freely movable across the inner race; and the axle being mounted to the slide member of each wheel so that the axle is moveable with the slide members across the inner race and between generally opposite sides of the inner race so that the position of the axle is movable relative to a central axis of the wheel and so that the body can pivot with the inner race relative the outer race. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A wheel assembly for a hand truck, comprising:
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at least one axle secured in fixed relationship to a body of the hand truck; a pair of wheels, each including; an inner annular race; an outer annular race having a ground engaging portion that surrounds the inner race; bearings disposed between the inner and outer races so that the inner and outer races are rotatable relative to each other; at least one guide member extending across an inner area defined by the inner race and fixedly mounted within, and secured at opposite ends thereof to, the inner race so as to be rotatable therewith; a slide member slidably mounted to the at least one guide member so that the slide member is freely movable from adjacent one side of the inner race to another side thereof; and the axle being mounted to the slide member of each wheel so that the axle is moveable with the slide members between generally opposite sides of the inner race and so that the body can pivot with the inner race relative the outer race and so that the position of the axle is movable relative to a central axis of the wheels. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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16. A wheel for a hand truck, wherein the hand truck includes an axle secured in fixed relationship to a body, the wheel comprising:
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an inner annular race; an outer annular ground engaging portion that surrounds the inner race; bearings disposed between the inner and outer races so that the inner and outer races are rotatable relative to each other; at least one guide member fixedly mounted within and secured across and inner area defined within the inner race so as to be rotatable therewith; a slide member freely slidably mounted to the at least one guide member; and securing means for mounting the axle to the slide member so that the axle is moveable with the slide member between opposite sides of the inner race when the axle is mounted thereto and so that the body can pivot with the inner race relative the outer race and so that the position of the axle is movable relative to a central axis of the wheel. - View Dependent Claims (17, 18, 19, 20)
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Specification