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US 4,065,890 AGranted
Framework joint
OwnerWolfgang Fennerinventor
Life of this patent
Estimating the term…
Abstract
A framework comprising hollow rods connected at their ends by connecting members. The hollow rods and connecting members are secured by a novel bayonet connection.
Claims13
A frame comprising
- a plurality of hollow rods (1,2) each of which has an inwardly directed annular flange (3) at each end;
- axially displaceable and rotatable guided sleeves (4) coaxial within said hollow rods at each end, said sleeves having an outwardly extending annular flange (5) at one end for engagement behind the flanges of said tubes, said sleeves having one or more circumferentially spaced dogs radially extending at the end opposite the annular flange;
- a plurality of hollow connecting members having two or more openings (10) for receiving said guided sleeves (4) associated with said tubes, said connecting members having associated with each opening a cylindrical flange (9) with circumferentially spaced guide ways (7,8) therein for receiving said dogs on said guided sleeves, such that the guided sleeve after being inserted in said opening, with dogs and guideway aligned, may be rotated placing the dogs behind the cylindrical flange thus forming a bayonet connection.
Dependencies are inferred from the claim text.