Chair structure

Details Chair structure Chair structure

1992-07-16

1993-10-12

Hafer, Robert A.

Surgery

Truss

Perineal

128 33, 128 243, A61H 1500

Patent

active

052516156

ABSTRACT:
An improved chair structure includes a frame having a vertical portion and a horizontal portion which is mounted on a body. A plurality of flexible supports are arranged across the vertical frame portion and the horizontal frame portion and a first line of rollers and a second line of rollers are arranged parallel to each other and perpendicular to the flexible supports in the vertical frame portion, while a third line and a fourth line of rollers are similarly arranged in the horizontal frame portion. The first line of rollers and the second line of rollers are symmetrical about a central line of the vertical frame portion and are separated by a distance greater than a human's spine; the third line and the fourth line of rollers are also symmetrical about a central line of the horizontal frame portion and are separated by a distance greater than a human's bottom; such that when a user sits on the chair and lies against the vertical frame portion, his spine and bottom are respectively located between two lines of rollers which produce a massaging effect thereon.

REFERENCES:
patent: 1164356 (1915-12-01), Kaiser
patent: 1700633 (1929-01-01), Hendrickson
patent: 2840072 (1958-06-01), Stearns
patent: 3899115 (1975-08-01), Simjian
patent: 4369533 (1983-01-01), Gisiger
patent: 5506506 (1991-10-01), Verduci

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