SCREW PROPULSOR Russian patent published in 2021 - IPC A61G5/06 B62D57/36 B62B5/02 

FIELD: off-road transport equipment.

SUBSTANCE: invention relates to off-road transport equipment, it can be used as a wheelchair chassis for overcoming public staircases. The screw propulsor comprises a hollow cylindrical rotor with a helical ridge, equipped with a rotation mechanism, and a rotary head. The rotor is made with transverse grooves, in which at least three rolling bearings are mounted, bearing a helical ridge equipped with a rotation mechanism.

EFFECT: simplification of the manufacturing technology of the screw propulsor used as the wheelchair chassis for movement on hard surfaces with overcoming obstacles is achieved.

2 cl, 2 dwg