FIELD: transport machine building.
SUBSTANCE: invention relates to off-road vehicles and can be used as wheelchair propulsor for overcoming stair flights of common use. Screw propulsion unit comprises a hollow cylindrical rotor with a helical ridge, equipped with a rotation mechanism, and a swivel head. Rotary head is made in form of ball-shaped wheel mounted on axis. Bearing element of head is double-arm lever, swinging in longitudinal plane between screws on suspension axis. Lever has double-sided spring-loaded damper to stabilize position of ball-shaped wheel above support plane of chassis from two augers.
EFFECT: enlarging functional capabilities of screw-type propulsor of wheelchairs for movement along solid surfaces.
1 cl, 1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| CHASSIS OF WHEELCHAIR | 2018 |
|
RU2685075C1 |
| SCREW-TYPE PROPULSOR | 2019 |
|
RU2699957C1 |
| SCREW-TYPE PROPULSOR | 2018 |
|
RU2684550C1 |
| SCREW MOTOR | 2018 |
|
RU2679847C1 |
| AUGER PROPULSION UNIT | 2023 |
|
RU2794375C1 |
| SCREW-TYPE PROPULSOR | 2018 |
|
RU2684834C1 |
| SCREW-TYPE PROPULSOR | 2020 |
|
RU2740225C1 |
| SCREW-TYPE PROPULSOR | 2018 |
|
RU2684833C1 |
| AUGER PROPULSION UNIT | 2023 |
|
RU2794377C1 |
| SCREW-TYPE PROPULSOR | 2019 |
|
RU2720383C1 |
