To avoid crushing near a fastening hole or buckling of fibers due to a shearing load applied from a fastener to the hole.SOLUTION: A fastening structure 1 comprises: a structural member 10 that is made of a fiber-reinforced composite material in which layers 11 to 14 in which reinforcing fibers are linearly oriented are laminated so that orientation directions are different, and in which when the number of orientation directions is n, a fastening hole 15 is provided which is a 2×n polygon and whose sides 15-1 to 15-8 of the 2×n polygon are orthogonal to any of the reinforcing fibers of each layer 11 to 14; and a fastener 30 having a polygonal part 31b as an engaging part of a 2×n square that engages the fastening hole 15.SELECTED DRAWING: Figure 1
締結構造、構造部材、締結具、移動体及び締結方法
2023-06-22
Patent
Elektronische Ressource
Japanisch
IPC: | F16B DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES , Vorrichtungen zum Befestigen oder Sichern von Konstruktionselementen oder Maschinenteilen, z.B. Nägel, Bolzen, Schrauben, Sprengringe, Klemmen, Klammern oder Keile / B64C AEROPLANES , Flugzeuge |