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US 5,002,337 AGranted
Stackable and linkable chairs
AssigneeAugust Froscher GmbH & Co. K.G.
InventorsHarmut Engel, Manfred Elzenbeck
Life of this patent
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AssigneeAugust Froscher GmbH & Co. K.G.
InventorsHarmut Engel, Manfred Elzenbeck
Estimating the term…
A stackable chair has a leg frame on which a seat and back are mounted. The leg frame comprises two lengths of flat tubing of dumb-bell shaped cross section bent to provide contiguous parallel portions which extend centrally transversely of the seat, portions extending from the ends of the parallel portions toward corner regions of the seat and portions bent downwardly to form the legs which are substantially in a vertical fore-and-aft plane but incline forwardly and rearwardly. When the chairs are stacked the legs of dumb-bell cross section nest with one another. The seat has a width substantially equal to the overall width of the leg frame and has cut-out corner regions to accommodate legs of superposed chairs when stacked. Plastic gliders at the bottom of the legs have support portions extending up along the legs for supporting superposed stacked chairs. The seat and back are mounted on the leg frame by two like supporting and connecting members at opposite sides of the chair, which also have provision for attaching an arm by a single screw or bolt or attaching a linking element for connecting chairs side by side in a row. The linking element is reversible so that it can be mounted with flat connecting lugs on the element directed either up or down.
A stackable chair comprising a leg frame having front and rear legs and an integral seat supporting portion, and a seat and back mounted on said leg frame, said seat having a width approximately equal to that of the leg frame and having corner portions cut out to receive the legs of a superposed stacked chair, the rear legs being inclined downwardly toward the rear and the front legs being inclined downwardly toward the front, each of said legs having an elongate, dumb-bell shaped cross section with two like thicker bulbous end portions joined by a thinner recessed central portion and with a major axis disposed at an angle to a plane defined by the front leg and back leg at the same side of the chair, whereby upon stacking of the chairs, thicker portions of the legs of one chair are received in recessed portions of legs of another chair.
A stackable chair comprising a leg frame, a seat, a back and means mounting said seat and back on said leg frame, said leg frame having front and rear legs and an integral seat supporting portion,
A stackable chair comprising a leg frame and a seat and back mounted on said leg frame, said leg frame comprising two tubes of uniform cross section having horizontal portions under said seat and end portions bent downwardly to form legs, two legs being formed by each tube, and means joining said horizontal portions with one another, rear legs being inclined downwardly toward the rear and front legs being inclined downwardly toward the front, each of said legs having a non-circular cross sectional shape with a circumference having outwardly convex and outwardly concave portions to provide respectively convex and concave outer surface portions so disposed circumferentially of the legs that when two like chairs are stacked one on another, convex outer surface portions of legs of one chair engage with concave outer surface portions of legs of another like chair.
A stackable chair comprising a leg frame and a seat and back mounted on said leg frame, said leg frame comprising two tubes of uniform cross section having horizontal portions under said seat and end portions bent downwardly to form legs, two legs being formed by each tube, and means joining said horizontal portions with one another, rear legs being inclined downwardly toward the rear and front legs being inclined downwardly toward the front, said legs being of a noncircular cross sectional shape with a circumference having outwardly convex and outwardly concave portions to provide respectively convex and concave outer surface portions so disposed circumferentially that when two like chairs are stacked one on another, convex outer surface portions of legs of one chair engage with concave outer surface portions of legs of another like chair, and gliders secured on lower end portions of said legs, said gliders having lower support surfaces for engagement with a floor surface and upper support surfaces for engagement by gliders of an upper chair when like chairs are stacked.
A stackable and linkable chair comprising a leg frame, seat and back,
Dependencies are inferred from the claim text.