Ergonomic chair has frame mounted on three castors with exchangeable upright sections and damper

摘要

The ergonomic roller chair has a frame with three wheels on a central upright (1,2,4) and a cranked joint section (1). It has a frontal exchangeable upright (2) and a seat formed as a shell shaped to fit a disabled person (6). The rear wheels are mounted on suspension swing arm. A damper (7a) allows adjustment of the height via a sliding adjustment on the upright (4).