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A motorized wheelchair, powerchair, electric wheelchair, or electric-powered wheelchair (EPW) is a wheelchair that is propelled by means of an electric motor (usually using differential steering) rather than manual power. Motorized wheelchairs are useful for those unable to propel a manual wheelchair or who may need to use a wheelchair for ...
The most widely recognized distinction is between motorized wheelchairs, where propulsion is provided by batteries and electric motors, and manual wheelchairs, where the propulsive force is provided either by the wheelchair user or occupant pushing the wheelchair by hand (self-propelled), by an attendant pushing from the rear using the handle(s ...
While power chair users are able to ingress and egress effortlessly because of the powered wheelchair, wheel slipping is a severe safety issue and so ramp angle is critical. Most kneel systems are very simplistic in design as a stainless steel cable pinches the frame to the rear axle creating a lower angle for entry and exit.
According to the National Household Travel Survey (NHTS), nearly 10 million working age Americans (18 to 64) reported having disabilities, with 8.8% regularly using a motorized wheelchair or scooter.
Wheelchairs and mobility scooters substitute for walking by providing a wheeled device on which the user sits. Wheelchairs may be either manually propelled (by the user or by an aide) or electrically powered (commonly known as a "powerchair"). There are different types of wheelchair power add-ons that turn any manual wheelchair into a power ...
Class 1 comprises non-mechanically propelled vehicles, including wheelchairs and handcycles. Users of such vehicles are treated for most purposes in law as pedestrians. They are not subject to any speed limits. Class 2 comprises mechanically propelled vehicles such as motorized wheelchairs and mobility scooters, limited to 4 mph (6.4 km/h).