F - Mech Eng,Light,Heat,Weapons – 16 – B
Patent
F - Mech Eng,Light,Heat,Weapons
16
B
F16B 39/36 (2006.01) B64C 1/00 (2006.01) F16B 1/00 (2006.01) F16B 3/06 (2006.01) F16B 5/02 (2006.01) F16B 19/02 (2006.01) F16B 43/02 (2006.01)
Patent
CA 2640693
In double-shear bolted joints for connecting load-transferring structural parts on an aircraft, wherein a first structural part having a bolt eye with a bushing is connected by means of a bolt to a second, generally fork-shaped structural part having two bolt eyes and the first structural part acts upon the bolt at an angle .noteq. 90~, it was previously disadvantageous that, in the surrounds of the particular bolt eye with the bushing, a material thickening was necessary. In order to avoid this thickening, it is proposed that the first structural part (6) has a constant thickness and the bushing (10) is inserted perpendicular to the surface of the structural part (6), the axis (A) of the bore within the bushing (10) for receiving the bolt (1) running obliquely to the surface of the structural part (6) and obliquely to the end face of the bushing (10). The result is that advantages are obtained in terms of manufacturing costs and weight of the bolted joint.
Les joints boulonnés en double cisaillement de la technique antérieure servant à joindre des éléments de structure transmettant des efforts sur un aéronef consistent à joindre par un boulon un premier élément de structure comportant un oeil de boulon doté d'une bague à un deuxième élément de structure prenant la forme générale d'une fourche et doté de deux yeux de boulon, le premier élément de structure exerçant une force sur le boulon selon un angle .noteq. 90°. Ces joints présentent toutefois l'inconvénient de nécessiter un épaississement de matériau au voisinage de l'oeil de boulon doté d'une bague. Selon l'invention, et dans le but d'éviter cet épaississement, le premier élément de structure (6) présente une épaisseur constante, et la bague (10) est insérée perpendiculairement à la surface de l'élément de structure (6), l'axe (A) de l'alésage dans la bague (10) recevant le boulon (1) étant oblique à la surface de l'élément de structure (6) et à la face d'extrémité de la bague (10). Ceci permet de réduire les coûts de fabrication et le poids du joint boulonné.
Airbus Deutschland Gmbh
Airbus Operations Gmbh
Oyen Wiggs Green & Mutala Llp
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