Shackle
AssigneeMesserschmitt-Bolkow-Blohm GmbH
InventorsMax Eiselbrecher, Rolf Gunther, Helmut Jakob
Life of this patent
Estimating the term…
Abstract
The present shackle is especially constructed for securing a wing to the fuselage of an aircraft or of a spacecraft. For this purpose the elements of the shackle intended for taking up pressure and tensile forces as well as the elements providing the necessary structural stability are made of fiber compound materials such as carbon or boron fibers.
Claims17
A shackle comprising metal insert means that comprises a pair of spaced eye bushings, pressure core means engaging and extending between said bushings spacing said metal insert means, and tension loop means holding the metal insert means and the pressure core means together, said pressure core means and said tension loop means being made of fiber compound materials, said pressure core means and said tension loop means of said fiber compound materials comprising fiber windings, said fiber windings of said loop means passing around both bushings and extending tangentially away from said bushing parallel to each other, the parallel portions of said loop means engaging and being parallel to said core means wherein the individual fibers extend in the direction of the force to be taken up by the respective fiber winding, whereby said pressure core means take up substantially only compressive forces, and said tension loop means take up substantially only tension loads.
A shackle comprising metal insert means, pressure core means spacing said metal insert means, and tension loop means holding the metal insert means and the pressure core means together, said pressure core means and said tension loop means being made of fiber compound materials, said tension loop means being wound from a plurality of individual fiber threads which envelope said metal insert means substantially in the shape of a hemisphere whereby the respective cone of tension forces is substantially compensated, said tension loop means comprising windings of different types of fiber threads, whereby the first windings adjacent to the pressure core means are made of softer fiber material than the windings further away from said pressure core means, said pressure core means and said tension loop means of said fiber compound materials comprising fiber windings, wherein the individual fibers extend in the direction of the force to be taken up by the respective fiber winding, whereby said pressure core means take up substantially only compressive forces, and said tension loop means take up substantially only tension loads.
Dependencies are inferred from the claim text.