WHEELCHAIR CHASSIS Russian patent published in 2023 - IPC B62D57/28 A61G5/06 B60B15/00 

FIELD: off-road vehicles.

SUBSTANCE: invention relates to off-road vehicles and can be used as a wheelchair chassis for climbing public stairs. The wheelchair chassis consists of a system of three side wheels located at the ends of one of the three radial assembly brackets rotating on the central axis, and a wheel drive mechanism. Each assembly wheel is made rimless in the form of a hub, on which a multilayer ring with a convex-concave three-wave contour is mounted.

EFFECT: simplification and unification of wheelchair chassis manufacturing technology for overcoming obstacles in the form of ditches, thresholds, curbs, scarps, including flights of stairs for general use.

2 cl, 1 dwg