Adaptive attachment wheel for wheelchairs
AssigneeVosara UG
InventorDominik Herrmann
Life of this patent
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Abstract
The invention relates to an adaptive attachment wheel for wheelchairs, formed as a unit consisting of: a wheel (5); frame segments (1); adaptation shells (7, 8) for lateral guidance on the wheelchair front tubes; and at least one holding element (6) that can be fastened to the wheelchair; such that, when the adaptive attachment wheel is attached to the wheel-chair, the adaptation shells (7, 8) are brought together with the wheelchair front tubes, the front casters of which are lifted off of the ground, and a three-wheeled wheelchair is produced, the front wheel (5) of which can be steered and braked by means of an one-hand steering system (13).
Claims18
An adaptive attachment wheel for fastening to a wheelchair, wherein the attachment wheel, in a fixed state on the wheelchair, is configured to lift off front wheels of the wheelchair such that a three-wheeled wheelchair is produced, the attachment wheel comprising:
- a wheel attached to a wheel fork;
- at least one tensioning element configured to tension the adaptive attachment wheel to a front tube of the wheelchair and to effect lifting of the front wheels of the wheelchair;
- at least one frame segment;
- and
- a steering tube connected to the frame segment,
- wherein a fork shaft of the wheel fork is guided within the steering tube, the fork shaft being rotatably supported in the steering tube,
- wherein the wheel can be steered by a one-hand handlebar being in operative connection with the wheel fork,
- wherein a rotary resistance of the one-hand handlebar relative to the steering tube is adjustable by a friction device.
An apparatus, comprising:
- an adaptive attachment wheel configured to be fastened to a wheelchair;
- and
- holding elements for fastening to different wheelchair frames,
- wherein the adaptive attachment wheel, in a fixed state on the wheelchair, is configured to lift off front wheels of the wheelchair such that a three-wheeled wheelchair is produced,
- wherein the adaptive attachment wheel comprises:
- a wheel attached to a wheel fork;
- at least one of frame segment;
- and
- a steering tube connected to the frame segment,
- wherein a fork shaft of the wheel fork is guided within the steering tube, the fork shaft being rotatably supported in the steering tube,
- wherein the wheel is configured to be steered by a one-hand handlebar being in operative connection with the wheel fork,
- wherein a rotary resistance of the one-hand handlebar relative to the steering tube is adjustable by a friction device.
Dependencies are inferred from the claim text.