Ergonomic seat and back structure for a chair

Details Ergonomic seat and back structure for a chair Ergonomic seat and back structure for a chair

1990-09-10

1991-05-14

Chen, Jose V.

Chairs and seats

Bottom or back

Framework

297DIG2, 297444, A47C 702

Patent

active

050150383

ABSTRACT:
A seat and back construction for an ergonomic office chair. An ergonomically functioning inner shell is mounted on a chair structure in a manner that does not interfere with the flexible characteristics of the inner shell. An outer rigid shell is provided to transfer static and dynamic loads applied to the back portion of the inner shell by an occupant directly to the chair structure without interfering with the flexible characteristics of the inner shell.

REFERENCES:
patent: 2993733 (1961-07-01), Pinkham
patent: 3669499 (1972-06-01), Semplonius
patent: 4018479 (1977-04-01), Ball
patent: 4045080 (1977-08-01), Barecki
patent: 4529247 (1985-07-01), Stumpf
patent: 4577907 (1986-03-01), Talmon et al.
patent: 4647109 (1987-03-01), Christophersen et al.

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