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AssigneeDeutsche Forschungsanstalt fur Luft- und Raumfahrt e.V.
InventorRainer Schutze
Estimating the term…
A rod connection arrangement includes a connection element for connecting a cylindrical reinforcing rod to a cylindrical main rod, with the reinforcing rod extending at an angle to the axis of the main rods. Each rod respectively consists of a core of compression material surrounded by a fiber composite wall having fabric layers with fibers that cross at an angle. The connection element consists of an arcuate body having a central axis and an inner surface with a radius substantially equal to an outer radius of the main rod. The arcuate body preferably extends over an arc of less than 360 degrees. The connection element further consists of an integrally formed joint plate projecting radially outwardly from an outer surface of the arcuate body. The joint plate is preferably formed by two layers of a fabric material imbedded in a rein matrix wherein fibers of the fabric layers cross at an angle of substantially .+-.45 degrees. The fabric layers extend from the joint plate onto the arcuate body to form the outer surface thereof. The inner surface of the arcuate body is secured with an adhesive to the outer surface of the main rod. The reinforcing rod further includes a compression resistant reinforcement inserted into one end thereof and further has an axially symmetrical slit formed in the end thereof, the slit being received over the joint. The slit end of the reinforcing rod is secured to the joint plate with an adhesive.
A connection element for connecting a reinforcing rod to a main rod wherein the reinforcing rod lies at an angle to the axis of the main rod said connecting element comprising an arcuate body (4) having a central axis (6) and an inner surface with a radius substantially equal to an outer radius of said main rod, said arcuate body extending in its cross-section over an arc of less than 360 degrees, said connection element further comprising an integrally formed joint plate (8) projecting radially outwardly from an outer surface of said arcuate body in a plane containing the axis of said arcuate body, said joint plate (8) being formed by two layers of a fabric (18, 20) wherein fibers of the fabric layers cross at an angle of substantially .+-.45 degrees, said fabric layers extending from said joint plate onto said arcuate body to form said outer surface of said arcuate body.
A rod arrangement comprising a main rod and a reinforcing rod extending at an angle to said main rod, said main rod and said reinforcing rod having a round cross-section and a longitudinal axis, each rod respectively comprising a core of compression resistant foam material surrounded by a cylindrical tube of fiber composite material with at least one layer of fibers lying unidirectionally and parallel with said longitudinal axis of said rod, each rod further comprising a fabric hose lying over said unidirectional fibers of said tube and having fibers which cross at an angle to the rod axis,
Dependencies are inferred from the claim text.