PURPOSE: To obtain a three-dimensional, three-axial fabric consisting of yarn in the direction of diameter, yarn in the direction of circumference and yarn in the direction of thickness, having high stiffness and strength to axially symmetric load and suitable as a reinforcing material for a composite material.
CONSTITUTION: A number of yarns 1 in the direction of diameter are stretched and installed radially from the central in multiple stages (five stages in the figure) and the whole is rotated. Yarns 3 in the direction of circumference are inserted into the direction of thickness with rapier 33 while inserting yarns 2 in the direction of circumference into the yarns 2 in the direction of diameter to entangle the yarns. The yarns 3 in the direction of thickness are formed into a loop 32 in the end of the direction of thickness by a hook 31 and engaged with the yarns 3 in the direction of thickness to be inserted next time. Three- dimensional, three axial fabric passing the yarns 2 in the direction of circumference and yarns 3 in the direction of thickness through between the yarns 1 in the direction of diameter stacked in the direction of thickness and multiple stage is obtained thereby.
HIROSHIMA NOBORU
YAMASHITA HIDE
TAKEI TAKAKO
