Portable power-saving and foldable electric wheel chair

Details Portable power-saving and foldable electric wheel chair Portable power-saving and foldable electric wheel chair

2006-06-01

2009-12-01

Morris, Lesley D (Department: 3611)

Motor vehicles

Steering by driving

Independently operable drive motors

C180S006480, C180S907000

Reexamination Certificate

active

07624826

ABSTRACT:
The present invention relates to a kind of portable power-saving and foldable electric wheel chair, characterized in that there is a hand control direction device on the left elbow10to control the specific running direction of the electric wheel chair; the left and right rear wheels3are integrated with the motors30respectively, so as the two motors30can directly drive the two rear wheels; two disc brakes20are installed on the left and right rear wheels3, the two disc brakes are connected to the brake handle15via the main steel string24, by means of a single hand press brake handle15, the two rear wheels3braked simultaneously; switches18for positive or inversion running control the main running direction of electric wheel chair; an intellectual control rod may also be installed on the right elbow12to replace the speed-adjusting turning handle14and switches18for positive or inversion running. It is also characterized mainly in that: the worm-gearing indirect driving and electric magnetic brakes used by normal electric wheel chairs are not used by the present invention, so significant power-saving is achieved; and there is a cross foldable device1.41-1.48in the vehicle frame1. Compared with the normal electric wheel chair, the advantages of the invention are: the self-weight is only half of the formers, the power consumption is only less than half of the formers, the traveling distance is twice of the formers, the comparable price (all are using lead-acid battery) is as low as a quarter of the formers, and foldable than the formers (with batteries).

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