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US 2021/0169715 A1Published application
Wheelchair
AssigneeEppur
InventorsColin Gallois, Lancelot Durand
Life of this patent
Estimating the term…
Abstract
A wheelchair comprises a frame and two main wheels each coupled to a hand rim for actuating the wheels in both directions of rotation and for braking.
Claims11
-10. (canceled)
A wheelchair, comprising:
- a frame;
- and
- two main drive wheels each coupled to a hand-rim for actuating the wheels in both directions of rotation and for braking;
- wherein the frame is equipped, on the right-hand side in relation to the normal direction of movement, by a right connecting means, with a right side shaft locking in a clockwise direction and freely rotating in a counterclockwise direction, a right hand-rim being mounted freely rotating in relation to the right side shaft, without freedom of axial translation, a right wheel being provided with a hub connected to the hand-rim by a connecting means locking in the clockwise direction, the hub comprising a means of braking the rotation of the hub in relation to the right side shaft, actuated by a counterclockwise movement of the hand-rim in relation to the right side shaft;
- wherein the frame is equipped, on the left-hand side in relation to the normal direction of movement, by a left connecting means, with a left side shaft locking in the counterclockwise direction and freely rotating in the clockwise direction, a left hand-rim being mounted freely rotating in relation to the left side shaft, without freedom of axial translation a left wheel being provided with a hub connected to the hand-rim by a connecting hub locking in the counterclockwise direction the hub comprising a means of braking the rotation of the hub in relation to the left side shaft, actuated by the counterclockwise movement of the hand-rim in relation to the left side shaft.
2 more elements
A pair of wheel assemblies for a wheelchair, comprising:
- a right-hand side assembly including a right hand-rim mounted freely rotating in relation to a right side shaft with no freedom of axial translation, a right wheel provided with a right hub connected to the right hand-rim by a right connecting means locking in the clockwise direction, the right hub comprising a right braking means for braking the rotation of the right hub in relation to the right side shaft, the right braking means being actuatable by a counterclockwise movement of the right hand-rim in relation to the right side shaft;
- and
- a left-hand side assembly including a left hand-rim mounted freely rotating in relation to a left side shaft with no freedom of axial translation, a left wheel provided with a left hub connected to the left hand-rim by a left connecting means locking in the counterclockwise direction, the left hub comprising a left braking means for braking the rotation of the left hub in relation to the left side shaft, the left braking means being actuatable by a clockwise movement of the left hand-rim in relation to the left side shaft.
Dependencies are inferred from the claim text.