TASK CHAIR

摘要

A low cost task chair (10) comprises a blow molded seat support member (24) having a central planar portion (34) for attachment of a control bracket (36). A recess (38) in the planar portion (34) beneath the control bracket (36) receives a cross brace (40). A pair of arm support frames (22) are secured to the ends of the cross brace (40) and to the control bracket (38). The arms (22) are, therefore, easily assembled to the chair (10) with the cross brace (40) concealed from view. A pedestal (26) is secured to the control bracket (36) and contains a gas cylinder (100) for raising and lowering the seat assembly (12). Another recess (44) is formed in the seat support member (24) for receiving a flush mounted cylinder actuating lever (46). A seat back adjustment mechanism for adjusting the outward position of the back (14) relative to the seat (12) comprises a pair of parallel spaced tubular members (52) telescopingly received by the control bracket (36). A blow molded back support (48) is provided with wedge-shaped channels for receiving a pair of tubular members (52) of a back support frame (48), thereby providing for a back height adjustment feature.