A wheelchair has a pair of levers along its opposite sides which is connected with the aid of a sprockets on drive wheels. In one form, each lever is connected to its sprocket with the aid of a rack. The drive wheels have a clutch which enables the power stroke of the lever to drive the wheels via the rack and pinion engagement, yet allowing the sprocket to rotate in the reverse direction upon the stroke of the lever. The rack likewise includes an accurate extent void of teeth to enable disengagement of the drive connection between the lever and sprocket whereby the wheels may move freely in both directions. A chain can also interconnect the lever and a return spring connected to the frame of the wheelchair. The chain has an extent void of pins to enable disengagement of the drive connection between the sprocket and the lever.
There are various kinds of wheelchair in America but it is crucial to determine the populous one among them. One of the commonly used wheelchairs is the variable types because it offers several benefits to the users. Also, the users in the United States keep increasing on daily basis which makes the types viral across the country.
The greatest benefit of a variable speed wheelchair is the provision of ease and convenience in the supplies. Even though electric motor may not be present, the controller can be used for movement anytime. Some variable wheelchairs are also operated with hand, some by mouth while others can have a functioning body part. This is an outstanding feature for people that do not have a total control of their hands or arm.
Another benefit is that this kind of wheelchair is of various kinds. This makes it easy for you to get several styles as well as companies which sell them online or in relevant retail stores. Anyone at any age or size might need the use of a wheelchair for mobility when they are old or have one deformity or the other. This is the main reason why the manufacturers provide a wide range of variable speed wheelchair and sometimes provide a customized service. Regardless of your weight or height, you would be able to find the one which will suit your needs appropriately.
Although there are some shortcomings of the power wheelchair, majority of them can be customized so as to enhance their features. In most cases, a power wheelchair cannot collapse or disassemble and have variable speed. Several people that want to travel may not have a bigger vehicle to keep the power wheelchair but can have an alternative plan.
The foldable wheelchair is also another kind which have a good sped and can be used for various kinds of event. This type can be found in several stores in the United States of America. However, they are more expensive than the conventional type of wheelchairs.
Several elderly, disabled or injured people buy the variable speed wheelchair in America so as to enhance their mobility. The chair is also popular across the United State. However, you should ensure the insurance or Medicare reps are checked before purchasing them. This is because majority of the disabled are unaware that if a wheelchair is prescribed by a doctor, it can be partially or fully covered by Medicare or insurance.