Wheelchair retrofit assembly with multiple dimensions of adjustment

An assembly for attachment of a propulsion system to a wheelchair frame includes a clamp which remains fixed to the frame, while an attachment device that enables three dimensions of adjustability permits quick release of a main wheel and the propulsion system (e.g., lever drive, pushrim and motor d...

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Bibliographic Details
Main Authors KYLSTRA BART, JAUVTIS NATHAN
Format Patent
LanguageEnglish
Published 13.09.2011
Subjects
CHAIRS FOR DENTISTRY
CYCLES
FUNERAL DEVICES
HUMAN NECESSITIES
HYGIENE
LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
MEDICAL OR VETERINARY SCIENCE
OPERATING TABLES OR CHAIRS
PERFORMING OPERATIONS
POWERED PROPULSION OF SLEDGES OR
RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES
TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
TRANSPORT OR ACCOMODATION FOR PATIENTS
TRANSPORTING
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Summary:An assembly for attachment of a propulsion system to a wheelchair frame includes a clamp which remains fixed to the frame, while an attachment device that enables three dimensions of adjustability permits quick release of a main wheel and the propulsion system (e.g., lever drive, pushrim and motor drive) that propels the main wheel. The clamp includes a first alignment feature, such as a pin. A spring-loaded latch may also be included. The attachment device includes a second alignment feature, such as a hole or slot, configured to mate with the first. To permit alignment for a number of different wheelchair frame geometries, the attachment device is rotatable to provide angular adjustability, structured to permit lengthwise adjustability, and coupled using hardware which provides offset adjustability in a direction generally parallel to the axis of the wheel.
Bibliography:Application Number: US20080229147