| 主权项 |
1. 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; andan 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. |
