Mobile and adaptable wheel chair

Details Mobile and adaptable wheel chair Mobile and adaptable wheel chair

1980-05-12

1982-07-13

Peters, Jr., Joseph F.

Motor vehicles

Steering by driving

Independently operable drive motors

280242WC, 297354, B62D 1104, A47C 750, A47C 102

Patent

active

043390137

ABSTRACT:
A wheel chair, including a frame, with the rear wheels mounted independently, each on an elongated arm, which extends rearward from a torsion bar. The center of the torsion bar is normally gripped against rotation to prevent transmittal of torsion from one end of the bar to the other, but the torsion bar may be turned through an arc to raise and lower the rear wheels, so as to maintain the chair level when going up or down a grade. A leg support panel is mounted on a linkage to enable it to pivot about an axis corresponding to the knee axis of the patient and the back support pivots between upright and horizontal position generally about the hip axis of the person. A padded support extends upward when the back support is lowered from its erect position in order to maintain continued support of the head.

REFERENCES:
patent: 839624 (1906-12-01), McNeill
patent: 2227875 (1941-01-01), Boden
patent: 3112001 (1963-11-01), Wise
patent: 3191990 (1965-06-01), Rugg
patent: 3342505 (1967-09-01), Diehl
patent: 3406772 (1968-10-01), Ahrent
patent: 3450221 (1969-06-01), Nelson
patent: 3786887 (1974-01-01), Rosenthal
patent: 3826324 (1974-07-01), Stevens
patent: 3858938 (1975-01-01), Kristensson
patent: 3893529 (1975-07-01), Karchak
patent: 3917312 (1975-11-01), Rodaway
patent: 3968991 (1976-07-01), Maclaren

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