Abstract: A rotatable office chair comprises at least two seat carriers, each further comprising an upper arched guide and a lower arched guide, and at least two back rest carriers, each further comprising a restrictedly guided region, and a back rest arranged on back rest carriers, wherein the restrictedly guided region of the at least one back rest carrier is guided between the upper arched guide and the lower arched guide of the at least one seat carrier, thus allowing the at least one back rest carrier to be inclined relative to the seat carrier, wherein the upper arched guide and the lower arched guide are embodied at least in certain regions as an arc of a circle portion and wherein the arc of a circle portion of the upper arched guide and the arc of a circle portion of the lower arched guide have the same center of a circle.

Abstract: A new and improved multi-purpose table includes a tabletop which may be rotated between a lowered, horizontal position for use and a raised vertical position for storage. A plurality of the multi-purpose tables in their raised storage position may be stacked together in a high density nested and stacked array. The table includes a load bearing structure including a vertical frame member having an underside portion and an opposed upside portion and a divergent V-shaped frame member having a pair of divergent angled leg portions. The vertical height of the V-shaped frame is less than the height of the vertical frame member to permit nested stacking. The tabletop is hingedly pivotally mounted to the upside of the vertical frame member. In a preferred embodiment, rollers are rotatably mounted to the underside portion of the vertical frame member.

Abstract: In this chair a rounded spring element (128) formed with substantially U-shaped cross-section is provided which comprises parallel legs and with which a seat area (130) and/or a back (142) can be integrated. The spring element consists of plastic and is made single-walled in the curvature region, then dividing in the direction of the seat area and the back into a double-walled form. For reinforcement, ribs (148) may also be provided. At the lower side of the seat area and the double-walled portion of the spring region (128) an integrated socket for a support frame is formed. On the seat area (130) a cushion (174) may be secured with the aid of a stirrup member (136) driven into sockets (140) and comprising wood or steel tube or integral foam. The back consists for example of a cushion support (142) to which a cushion (144) is secured via a stirrup member (146) driven into sockets (152) on the spring region. It is possible to make the spring region (128), seat area ( 130) and back (142) from uniform material.