BÜROSTUHL

• Main Authors: COFFIELD, TIMOTHY P, INMAN, CHRISTOPHER G, WATSON, RONNIE K, BACH, JAMES W, CHAPMAN, ANTHONY K, LEWIS, RANDALL C, BACH, DAVID F, CHROSTOWSKI, MATTHEW E, EBENSTEIN, SCOTT M
• Format: Patent
• Language: German
• Published: 15.11.2006
• Edition: 7
• Subjects: BEDS; CHAIRS; COFFEE MILLS; DOMESTIC ARTICLES OR APPLIANCES; FURNITURE; HUMAN NECESSITIES; SOFAS; SPICE MILLS; SUCTION CLEANERS IN GENERAL

A chair having an adjustable resilient back recliner mechanism (20), a pair of adjustable armrests (22,24), modular upper back portions and an adjustable lumbar support. The chair includes a tension control (118) that adjusts the tension in the recliner mechanism. The tension control is cam-operated to permit adjustment throughout the entire range of adjustability with only limited rotational movement of a control knob. The chair includes a recline limit control (28) that adjusts the limit of rearward movement in the recliner mechanism. The limit control includes a cable operated stop that interact with a stepped trackway on the seat. The chair further includes a height control (160) for adjusting the seat height including a push-button located in the tension control knob. The armrests (22,24) include height and angle adjustment mechanisms. The lumbar support (30) includes a lumbar cam (122) that is rotatably mounted to a lumbar pad (120). The lumbar cam (122) includes a plurality of lobes that vary in radius so that rotation of the cam causes variation in the contour of the lumbar region. The chair back includes a fabric carrier with an upper back portion mounting platform that permits attachment of any of a variety of modular upper back portions.