Abstract: A chair, especially an office chair in which a one-piece backrest has forwardly extending arms engaging and secured to armrest portions of a tubular frame. The arms form the armrests for the chair.

Abstract: Stackable row chairs can be provided with desk assemblies for lecture hall purposes by forming a holder for the desk assembly with a pair of struts upon stirrups at their lower ends engaging the legs of the chair provided with the assembly. Connecting members can run from the stirrups to an adjoining chair to allow the desk assembly simultaneously to serve as a connecting system for joining the chairs in the row.

Abstract: A plurality of seating units, each of which may have two or more seats on a common frame, can be connected to a central support by plug connectors. The central support has a support column and a housing which can be clamped together upon angular adjustment to allow the seating units to assume various angles relative to one another. The central column can accommodate an approximately round table.

Abstract: A seating assembly has an armless chair having a frame, floor-engaging legs extending downward from the frame, a generally horizontal seat supported on the frame, and an upright back supported on the frame. The frame defines a pair of opposite sides between which lie the respective frame, legs, seat, and back. An arm chair has a frame, floor-engaging legs extending downward from the frame, a generally horizontal seat supported on the frame, an upright back supported on the frame, and at least one arm fixed to the frame. This frame and arm define a pair of opposite sides between which lie the respective frame, legs, seat, back, and arm. A front female coupling member is fixed on one side of each chair spaced a predetermined vertical front distance from a floor plane defined by the respective feet and a front male coupling member is fixed on the other side of each chair spaced a vertical front distance from the respective plane and engageable in the female member of an adjacent such chair.

Abstract: A chair has a base, a generally horizontal seat supported on the base, and a generally vertical back supported on the base behind the seat and provided at a predetermined spacing above the seat with a horizontally extending flex joint having formations for permitting free pivoting backward of an upper portion of the back to a predetermined backwardly deflected position and for thereafter resisting further backward deflection. The back comprises a front plate, a cushion carried on the front plate, and a rear plate fixed to the front plate and formed with the flex joint. The formations include a pair of extending flanges extending generally horizontally from the rear plate and a bight interconnecting the two flanges. The flex joint can be unitarily formed with the rear plate. Its flanges are vertically spaced from each other and only touch when the predetermined backwardly deflected position is reached.

Abstract: A chair has a base, a generally horizontal seat supported on the base, and a generally vertical back supported on the base behind the seat and provided at a predetermined spacing above the seat with a horizontally extending flex joint having formations for permitting free pivoting backward of an upper portion of the back to a predetermined backwardly deflected position and for thereafter resisting further backward deflection. The back comprises a front plate, a cushion carried on the front plate, and a rear plate fixed to the front plate and formed with the flex joint. The formations include a pair of extending flanges extending generally horizontally from the rear plate and a bight interconnecting the two flanges. The flex joint can be unitarily formed with the rear plate. Its flanges are vertically spaced from each other and only touch when the predetermined backwardly deflected position is reached.