WHEELCHAIR CHASSIS BY N. P. DYADCHENKO Russian patent published in 2021 - IPC A61G5/06 

FIELD: mechanical engineering.

SUBSTANCE: invention relates to mechanical engineering, in particular to wheelchair chassis. The chassis consists of two pairs of propellers on board, each of which consists of three low-pressure pneumatic satellite rollers located at the ends of one of the three radial assembly brackets, and a solar gear of the drive of the satellite rollers. The satellite rollers represent the wheels with pneumatic diagonal high-profile tyres, the peripheral part of which is of a toothed gear type. The height of the toothed gear profile is bigger than or equal to its width. The solar gear of the drive mechanism represents a toothed wheel with teeth sizes shrinking from the periphery to the axis of rotation.

EFFECT: achieved is possibility of overcoming obstacles such as curbs and stairs.

1 cl, 1 dwg