Lumbar support device

Details Lumbar support device Lumbar support device

1988-09-27

1990-09-18

Apley, Richard J.

Surgery

Truss

Perineal

297DIG3, 128 66, 128 33, 128 44, A61F 500

Patent

active

049571028

ABSTRACT:
A lumbar frame is arranged, movable up and down, in a lower frame through second air mats which is attached to the seat back frame of a seat to correspond to the lumbar of a person who is seated on the seat, support brackets are attached, movable forward and backward, to both ends of the lumbar frame through link mechanisms and first air mats, a lumbar support member such as the zigzag or wave-formed spring is stretched between the support brackets, and an air supply and discharge means is used to supply and discharge air to and from the air mats to adjust the lumbar support member upward, downward, forward and backward.

REFERENCES:
patent: 3276048 (1966-10-01), Beckman
patent: 3392723 (1968-07-01), Calvin
patent: 3915421 (1975-10-01), Le Forestier
patent: 3954245 (1976-05-01), Costin
patent: 4287620 (1981-09-01), Zur
patent: 4321044 (1982-03-01), Kron
patent: 4576149 (1986-03-01), Otuka et al.
patent: 4615336 (1986-10-01), Fijimoto
patent: 4629253 (1986-12-01), Williams
patent: 4707027 (1987-11-01), Horvath et al.
patent: 4720146 (1988-01-01), Mawbey et al.
patent: 4775185 (1988-10-01), Scholin et al.
patent: 4778216 (1988-10-01), Stupakis
patent: 4827546 (1989-05-01), Cvetkovic

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