Rotatable swing arm stabilizer assembly for folding wheelchairs
AssigneeSpinergy Inc.
InventorsTod Douglas Boretto, Martin Connolly
Life of this patent
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Abstract
A swing arm assembly for a foldable wheelchair consisting of a camber tube and adapters is disclosed. The adapters mount to the frame of the wheelchair and receive the ends of the camber tube. Each end of the camber tube is pinned into an adapter using a quick release pin. The camber tube improves the stability of the foldable wheelchair. When desired to fold the wheelchair, the quick release pin is removed and the camber tube is removed, thereby allowing the wheelchair to fold. The adapters may be mounted to the wheelchair frame or to stub axles if used. The swing arm assembly adds substantial stiffness and stability to a folding wheelchair.
Claims17
A swing arm stabilizer assembly, comprising:
- a camber tube having a first end and a second end;
- a first camber tube adapter attached to the first end of the camber tube;
- a second camber tube adapter attached to the second end of the camber tube;
- a first wheelchair adapter;
- and
- a second wheelchair adapter,
- wherein the first wheelchair adapter and the second wheelchair adapter are configured to be mounted on opposing mounting brackets of a wheelchair,
- wherein the first camber tube adapter is engageable to the first wheelchair adapter and secured in position and aligned therewith;
- and
- wherein the second camber tube adapter further comprises:
- a first wheelchair adapter arm having a pinhole;
- a second wheelchair adapter arm having a pinhole coaxially aligned with the pinhole of the first wheelchair adapter arm;
- and
- a slot formed between the first wheelchair adapter arm and the second wheelchair adapter arm,
- wherein the slot is configured to receive the second camber tube adapter when the camber tube is in a second position, and
- wherein the camber tube is secured in a first position by a pin received through the pinhole of the first wheelchair adapter arm and the pinhole of the second wheelchair adapter arm.
A foldable wheelchair with a swing arm assembly, comprising:
- a folding wheelchair having a first main wheel and a second main wheel defining an axis of rotation;
- a camber tube having a first end and a second end;
- a first camber tube adapter attached to the first end of the camber tube;
- a second camber tube adapter attached to the second end of the camber tube;
- a first wheelchair adapter adapted to a first frame member of the folding wheelchair;
- and
- a second wheelchair adapter adapted to a second frame member of the folding wheelchair opposite the first frame member,
- wherein the first camber tube adapter is removably attached to the first wheelchair adapter and the second wheelchair adapter is removably attached to the second camber tube adapter,
- wherein the first camber tube adapter has a pinhole and the first wheelchair adapter has a corresponding pinhole, and wherein the first camber tube adapter is attached to the first wheelchair with a pin inserted through the pinhole of the first camber tube adapter and the pinhole of the first wheelchair adapter,
- wherein the second wheelchair adapter further comprises:
- a first wheelchair adapter arm having a pinhole;
- a second wheelchair adapter arm having a pinhole coaxially aligned with the pinhole of the first wheelchair adapter arm;
- and
- a slot formed between the first wheelchair adapter arm and the second wheelchair adapter arm,
- wherein the slot is configured to receive the second camber tube adapter when the camber tube is in a second position, and
- wherein the camber tube is secured in a first position by a pin received through the pinhole of the first wheelchair adapter arm and the pinhole of the second wheelchair adapter arm.
Dependencies are inferred from the claim text.