Abstract: A filament winding apparatus includes a hoop winding device and a helical winding device. The hoop winding device includes a disc-shaped wrapping table, a drive mechanism that rotatably drives the wrapping table, four bobbins supported along a peripheral edge of the wrapping table, and a guide member that moves and guides a fiber bundle fed from the bobbin to a mandrel arranged in an insertion hole of the wrapping table. The bobbin is axially supported in a freely rotatable manner with a chuck of a holder fixed to the wrapping table. A ratchet mechanism, which prevents over-rotation in a fiber bundle feeding direction of the bobbin, is arranged between the holder and the chuck.

Abstract: A filament winding apparatus equipped with a transfer mechanism of a terminating end of a fiber bundle using a transfer ring that can be switched from a mandrel after the winding process to a mandrel before the winding process. A cutter cuts a fiber bundle wound around a first transfer ring integral with a mandrel after the winding process and a second transfer ring is moved to the mandrel before the winding process between the first and second transfer rings; and a friction roller positions and holds the second transfer ring when cutting the fiber bundle. The friction roller is pressed and biased against the second transfer ring by a compression spring.

Abstract: The present invention makes it possible to increase production efficiency while reducing costs.

Abstract: The present invention provides a resin impregnating apparatus which enables a fiber feeding speed to be increased without increasing the size, complicatedness, or costs of the apparatus. A resin impregnating apparatus 1 impregnating fibers F with resin includes a block member 2 including a tapered passage 21 through which the fibers F pass and which is tapered toward a direction in which the fibers F pass, and a resin supply device 3 supplying the resin to the fibers F in the vicinity of an inlet of the tapered passage 21. As the fibers F pass through the tapered passage 21 carrying the supplied resin, the resin is pressurized by a wedge effect of the tapered passage 21 so that the fibers F are impregnated with the resin.

Abstract: Helical winding is reliably carried out in a plurality of patterns at different angles in a short period of time. A filament winding apparatus for winding fiber bundles onto the surface of a mandrel includes a helical winding head for use in helical winding of the fiber bundles onto the mandrel. The helical winding head includes at least two guide arrays, each including a plurality of guide portions disposed along a circumferential direction of the mandrel, and a repositioning mechanism capable of repositioning the guide portions by rotating each guide array relative to another.

Abstract: An object of the present invention is to provide a multifunctional gel material including a gel and solid materials, in which the solid materials are moderately dispersed within the gel by adjusting the specific gravities of the gel and the solid materials, or in which the solid materials are always arranged in the same predetermined positions within the gel by dispersing them to the predetermined positions with a positioning means. To achieve this object, the solid materials are dispersed within the gel by using any means. Specifically, the solid materials are dispersed within the gel by adjusting the specific gravity of the solid materials with the specific gravity of the gel. Furthermore, the solid materials are moderately dispersed within the gel by being appropriately arranged by a positioning means.

Abstract: A method for producing an annular, fiber-reinforced composite structure comprising (a) forming reinforcing fibers into an annular base preform having an annular flat-plate web and a flange substantially perpendicular to the web, (b) bonding an annular, reinforcing, flat-plate fiber preform to the web of the annular base preform, (c) bonding a cylindrical, reinforcing fiber preform to the flange of the annular base preform to form an integral, annular fiber preform, (d) impregnating the resultant annular fiber preform with a matrix resin, and (e) curing the matrix resin.

Abstract: It is an object to provide a method for manufacturing a three dimensional structure employing the principle of braid composition to compose a three dimensional X confounding section (a 3X confounding structure, a 4X confounding structure, a 6X-3X confounding structure) and a manufacturing apparatus for a three dimensional structure which is applicable to the method. A method for manufacturing a three dimensional structure with a linear structure 1 pulled out individually from a plurality of bobbin carriers 2, comprising the steps of: supporting said plurality of bobbin carriers transferably and loadably; and moving the bobbin carrier so that linear structures from at least three directions are joined to converge at intervals in a composing direction and diverge in at least three directions.

Abstract: A three-dimensional weaving machine that enables biased yarn guide blocks to be reduced in size and their movement to be simplified and that reliably feeds biased yarns is described. A three-dimensional mechanism contains 2N guide blocks (13), each including a biased yarn through-hole (15) extending along the length direction. A guide block receiving and supporting device (18) forms guide block arrangement spaces (S1), (S2), and (S3) in a bottom stage, a middle stage, and a top stage wherein N of the 2N guide blocks can be arranged in each stage parallel with, and adjacent to, one another. A guide block moving device (22) is provided for moving the guide blocks in each stage in opposite directions along the respective stages, and a shifting device (44) operates for simultaneously shifting two adjacent sets of guide blocks movably arranged in the respective guide block arrangement spaces, each by one stage.