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US 2022/0089208 A1Published application
Tilt Brake Mechanism For Hand Truck
AssigneeData-Metalcraft, Inc.
InventorsGene O'Brien, Robert V. Albertson, Michael Holden
Life of this patent
Estimating the term…
Abstract
A braking mechanism for a hand truck or dolly that, when installed on the hand truck, slows the movement of the hand truck when the hand truck is tilted rearwardly. The more the hand truck is tilted rearwardly, the greater the braking force applied by the braking mechanism against the wheels.
Claims20
A braking mechanism for a hand truck comprising:
- a lever assembly extending rearwardly from a hand truck such that if the hand truck is tilted rearwardly, the lever assembly contacts a supporting surface on which the hand truck is being used, and further rearward tilting of the hand truck cause the lever assembly to pivot relative to the hand truck;
- an activation mechanism connected to the lever assembly such that the pivoting of the lever assembly caused by rearward tilting of the hand truck results in interference between the activation mechanism and wheels of the hand truck.
A method of controlling a downhill descent of a hand truck comprising equipping the hand truck with a braking mechanism that interferes with rotation of wheels of the hand truck as the hand truck is tilted rearwardly.
A hand truck comprising:
- a frame;
- a loading tray;
- an axle;
- wheels connected to ends of the axle;
- a braking mechanism that contacts a supporting surface on which the hand truck is being used when the hand truck is tilted rearwardly, said braking mechanism interfering with rotation of the wheels such that a rotational speed of the wheels may be controlled by tilting the hand truck.
2 more elements
Dependencies are inferred from the claim text.