Back to results
US 12,030,542 B2Granted
Motorized weight bearing device
AssigneeTriangle Strong Partners, LLC
InventorRyan C. Anderson
Life of this patent
Estimating the term…
Abstract
A weight-bearing device includes a single wheel, a frame attached to the wheel, and an electric motor attached to the frame. The electric motor is configured to rotate a first gear, connected to a second gear with a chain. The second gear is connected to the wheel. The second gear and the first gear may have a gear ratio of greater than 8:1.
Claims20
A weight-bearing device comprising:
- a single wheel configured to contact a ground;
- a frame including a weight-bearing surface tangential to the single wheel, the frame connected to the single wheel;
- a motor having a power source and an output shaft;
- a first gear rotationally coupled to the output shaft;
- a second gear connected to the single wheel with a unidirectional torque transfer device, the second gear and the first gear having a gear ratio greater than 6 to 1;
- a chain between the first gear and the second gear;
- a chain tensioning device operatively coupled to the chain and configured to tension the chain, wherein actuating the chain tensioning device adjusts a linear distance between the first gear and the second gear, and wherein at least a portion of the chain tensioning device is positioned within an enclosed portion of the frame itself;
- and
- a pair of handles connected to the frame.
6 more elements
A weight-bearing device comprising:
- a single wheel having a hub radially centered in the single wheel, the hub having a hub first end and a hub second end;
- a frame having a frame first side and a frame second side, wherein the frame first side is connected to the hub first end and the frame second side is connected to the hub second end, the frame being rotatable relative to the single wheel and including a weight-bearing surface tangential to the single wheel;
- a pair of handles connected to the frame;
- an electric motor attached to the frame;
- a first gear configured to be rotated by the electric motor;
- a second gear connected to the first gear by a chain, the second gear connected to the single wheel with a unidirectional torque transfer device;
- and
- a chain tensioning device, including:
- a tensioning block slidably connected to the frame, wherein the first gear is coupled to the tensioning block to slide with the tensioning block, wherein the tensioning block is positioned within an enclosed portion of the frame itself;
- and
- a linear adjuster rotatably connected to the frame and configured to slidably position the tensioning block with respect to the frame, wherein rotating the linear adjuster slidably adjusts the tensioning block with respect to the frame.
8 more elements
A method for operating a weight bearing device comprising:
- actuating a linear actuator of a chain tensioning device to slidably position a tensioning block within an enclosed portion of a frame of the weight bearing device;
- based on slidably positioning the tensioning block, adjusting a distance between a first gear and a second gear;
- changing a tension of a chain connected to the first gear and to the second gear;
- engaging an electric motor powered by an electric battery to rotate the first gear;
- rotating the second gear based on rotating the chain connected to the first gear and the second gear;
- and
- rotating a wheel coupled to the second gear.
4 more elements
Dependencies are inferred from the claim text.