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US 9,308,142 B2Granted
Sports wheelchair
AssigneeVRD Products, Inc.
InventorWilliam V Harding
Life of this patent
Estimating the term…
Abstract
A wheelchair includes a chassis; first and second wheels coupled to the opposites sides of the chassis; a front caster; and a rear caster. The chassis includes a base plate; a back plate; first and second side plates; a rear plate; and a seat coupled to the back plate and the first and second side plates opposite the base plate.
Claims20
A wheelchair comprising:
- a chassis having a front and a rear opposite the front;
- first and second wheels coupled to the opposites sides of the chassis;
- a front caster coupled to the chassis under the chassis and proximal to the front of the chassis, the lowest points of the first and second wheels and the front caster defining a ground plane;
- and
- a rear caster disposed proximal to the rear of the chassis;
- wherein the chassis comprises:
- a base plate disposed proximal the ground plane;
- a back plate coupled to the base plate and extending from the base plate away from the ground plane;
- first and second side plates coupled to the base plate and extending from the base plate away from the ground plane and coupled to the back plate and extending from a front side of the back plate toward a front of the chassis and along opposites sides of the chassis;
- a rear plate coupled to the base plate and extending from the base plate away from the ground plane, the rear plate coupled to the back plate and extending from a rear of the base plate toward a rear of the chassis;
- a seat coupled to the back plate and the first and second side plates at a top of the back plate and the first and second side plates opposite the base plate;
- and
- an axle support secured to the back plate vertically between the base plate and the seat, the rear plate shaped to accommodate the axle support, the first and second wheels coupled to axles coupled to the axle support.
10 more elements
A method of making a wheelchair, the method comprising:
- applying a back plate and first and second side plates to a base plate, the base plate including at least one first side slot, at least one second side slot, and at least one back slot, the back plate including at least one back tab to engage the at least one back slot of the base plate, the first side plate including at least one first side tab to engage the at least one first side slot, and the second side plate including at least one second side tab to engage the at least one second side slot;
- attaching a rear plate to the base plate and the back plate;
- attaching a seat to the back plate and the first and second side plates at a top of the back plate and at the top of the first and second side plates opposite the base plate;
- attaching an axle support to the back plate vertically between the base plate and the seat, the rear plate shaped to accommodate the axle support;
- and
- attaching axles to the axle support to attach first and second wheels to the axles.
3 more elements
Dependencies are inferred from the claim text.