Stair climbing device

Details Stair climbing device Stair climbing device

1988-03-30

1993-11-23

Johnson, Brian L.

Motor vehicles

Special driving device

Stepper

180907, 180357, 280 528, 280DIG10, B62B 502

Patent

active

052635473

ABSTRACT:
A stair climbing device, such as a wheelchair for handicapped comprises a frame having two sides, two wheel pairs each arranged on a respective one of the sides of the frame, each of the wheel pairs having two wheels each provided with a rim and a center axis, two drive shafts provided for each wheel pair, the drive shafts extending parallel to one another and to the center axis and being driven jointly, the wheels of each of the wheel pairs being turnable relative to the frame about the drive shafts, each of the drive shafts being provided with a hub disc with which it is eccentrically connected, the rim of each of the wheels being concentrically and rotatably supported on a a respective one of the hub discs.

REFERENCES:
patent: 2400824 (1946-05-01), Jackson
patent: 3304094 (1967-02-01), Wenger
patent: 3515401 (1970-06-01), Gross
patent: 4457526 (1984-07-01), Persson
patent: 4550924 (1985-11-01), Alber
patent: 4709773 (1987-12-01), Clement et al.

Affiliated with

Also associated with

Rating

Stair climbing device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Stair climbing device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Stair climbing device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1841537