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The design of the RoughRider originally was open-source and has been revised with input from wheelchair users in over 40 countries since 1980. [2] The RoughRider was created to fill the demand for a reliable wheelchair for over 20 million disabled people in the developing world who need a wheelchair and do not have one. [3]
A drive shaft, driveshaft, driving shaft, tailshaft (Australian English), propeller shaft (prop shaft), or Cardan shaft (after Girolamo Cardano) is a component for transmitting mechanical power, torque, and rotation, usually used to connect other components of a drivetrain that cannot be connected directly because of distance or the need to ...
A wheelchair lift in the front door of a TriMet bus in Portland, Oregon, in 2010 A bus in Prague with wheelchair lift extended, 2006. A wheelchair lift, also known as a platform lift, or vertical platform lift, is a fully powered device designed to raise a wheelchair and its occupant in order to overcome a step or similar vertical barrier.
A standing wheelchair is an automated device that assists its user in moving from a seated, to standing position and oftentimes back to flat if the chair has the capabilities of doing so. Standing wheelchairs are common among individuals with: muscular dystrophy, multiple sclerosis, and other ailments that compromise mobility functions.
The rails are, necessarily, of heavy construction to support the load and the drive system is usually accommodated within a tubular section rail or aluminum extrusion. Some models have steel cables inside the tube, others have chains; yet others may use a rack and pinion system. Many wheelchair platform stairlifts are designed and built to order.
This motor-worm-drive system is often used in toys and other small electrical devices. A worm drive is used on Jubilee-type hose clamps or Jubilee clamps. The tightening screw's worm thread engages with the slots on the clamp band. Occasionally a worm drive is designed to run in reverse, resulting in the worm shaft turning much faster than the ...
View from above of wheelchair racing competition at the 2000 Summer Paralympics. The distances involved in wheelchair racing include sprint distances of 100 m (109.4 yards), 200 m (218.7 yards) and 400 m (437.4 yards), middle distances of 800 m (874.9 yards) and 1500 m (1640.4 yards), long distances of 5000 m (3.1 miles) and 10,000 m (6.2 miles) and relay races of 4 × 100 m (109.4 yards) and ...
Kits have been produced for the general market to turn a sedan into a Humvee lookalike. An alternative is to buy a preconstructed (or "turnkey") model. Various kits exist, but one of the more well known is the Volkswagen Beetle-based "Wombat". This was previously named "HummBug", until the threat of a lawsuit from General Motors forced changes ...
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