Abstract: Manual braking system with a variable braking force for a wheelchair. Caliper type brakes positioned to mount on and exert braking force on disks mounted to interior “disk” hubs rotatably mounted to the wheelchair frame wheel hubs are mated with the “disk” hubs with a push button release pin allowing the wheel to be quickly removed without disturbing disk braking system. Caliper brakes are actuated by a manual lever arm, cable and pulley combination mounted to the frame of the wheelchair. The lever is provided with and without a plunger mechanism. A plunger mechanism allows the user to maintain the manual braking force exerted on lever without hands. The plunger mechanism is fixably mounted and positioned to insert a plunger head into notches on the lever. The force exerted by the plunger head is sufficient to hold the plunger head within the notch and prevent movement of the lever without manual force.

Abstract: A quick release detachable wheel hub assembly is shown for a lightweight manual wheelchair. The wheelchair wheels mount on exterior hubs and rotate therewith. The inner face out of each of the exterior hubs mates with an opposing outer face of interior hubs. One of the opposing faces on the hubs has a projection or a plurality of projections which fit snugly into corresponding openings on the opposing face of the other hub when the opposing faces of the hubs are mated. The interior hubs are mounted and rotate on detachable axles which screw into the wheelchair frame. A quick release, removable locking pin is inserted through the center of the hubs and into detachable axle and locked in place and thereby causing the hubs to be locked and rotate together. The wheels are quickly detached by simply removing the locking pins and pulling apart the hubs.

Abstract: A quick release detachable wheel hub assembly is shown for a lightweight manual wheelchair. The wheelchair wheels mount on exterior hubs and rotate therewith. The inner face out of each of the exterior hubs mates with an opposing outer face of interior hubs. One of the opposing faces on the hubs has a projection or a plurality of projections which fit snugly into corresponding openings on the opposing face of the other hub when the opposing faces of the hubs are mated. The interior hubs are mounted and rotate on detachable axles which screw into the wheelchair frame. A quick release, removable locking pin is inserted through the center of the hubs and into detachable axle and locked in place and thereby causing the hubs to be locked and rotate together. The wheels are quickly detached by simply removing the locking pins and pulling apart the hubs.

Abstract: A quick release detachable wheel hub assembly is shown for a lightweight manual wheelchair. The wheelchair wheels mount on exterior hubs and rotate therewith. The inner face out of each of the exterior hubs mates with an opposing outer face of interior hubs. One of the opposing faces on the hubs has a projection or a plurality of projections which fit snugly into corresponding openings on the opposing face of the other hub when the opposing faces of the hubs are mated. The interior hubs are mounted and rotate on detachable axles which screw into the wheelchair frame. A quick release, removable locking pin is inserted through the center of the hubs and into detachable axle and locked in place and thereby causing the hubs to be locked and rotate together. The wheels are quickly detached by simply removing the locking pins and pulling apart the hubs.

Abstract: A quick release detachable wheel hub assembly is shown for a lightweight manual wheelchair. The wheelchair wheels mount on exterior hubs and rotate therewith. The inner face out of each of the exterior hubs mates with an opposing outer face of interior hubs. One of the opposing faces on the hubs has a projection or a plurality of projections which fit snugly into corresponding openings on the opposing face of the other hub when the opposing faces of the hubs are mated. The interior hubs are mounted and rotate on detachable axles which screw into the wheelchair frame. A quick release, removable locking pin is inserted through the center of the hubs and into detachable axle and locked in place and thereby causing the hubs to be locked and rotate together. The wheels are quickly detached by simply removing the locking pins and pulling apart the hubs.

Abstract: An electrical braking system is shown for a lightweight manual wheelchair. A rechargeable battery source on the wheelchair connects through a switch to a linear actuator for operation of an actuator rod. The actuator rod connects through a pulley to a single braking cable that connects to left and right caliper brakes mounted on the left and right wheels. Moving the center OFF switch a first direction will move the actuator rod, pull the braking cable, and apply both brakes. Moving the center OFF switch a second direction will move the actuator rod the opposite direction which releases the braking cable and hence the brakes. As soon as the switch returns to OFF, the linear actuator maintains the same amount of braking pressure, if any. A limit switch prevents too much braking pressure from being applied and protects the linear actuator.