Honda Motor Co., Ltd.

Kosuke Tatsushima

Kenta Umetsu

Hiroyuki Takahashi

Koei Fujiki

Yohei Noji

Toru Koseki

Yuki Nishitarumizu

Yusuke Tsuchiyama

Yuta Urushiyama

Takeshi Watanabe

Kazufusa Miyajima

Masaru Nakanishi

Fumihiro Aoki

Michael Bruyneel

Koji Nozoe

A filament winding apparatus includes a bobbin driving unit, a winding device, and a tension applying device. A filament winding method using the filament winding apparatus includes a temporary suspending step of temporarily suspending operation of the winding device in the middle of winding the fed-out fiber portion around the workpiece. In the temporary suspending step, the length of the feeding path is increased by moving the pressing member while causing the pressing member to press against the fed-out fiber portion in a state of continuing to feed out the fed-out fiber portion from the fiber roll portion.

Filament winding method and filament winding apparatus

A mandrel around which fiber-reinforced resin is wound, the mandrel including a cylinder portion having a plurality of first flat surface portions, and a pair of dome portions that are formed at respective ends of the cylinder portion and each include a plurality of second flat surface portions.

Mandrel and test piece collecting method for filament winding

A computer determines winding parameters based on the width of reinforced fibers, the angle between the reinforced fibers and an imaginary line, and the outer diameter of a cylinder section.

Parameter determination method and parameter determination apparatus

A high-pressure vessel includes a liner and a reinforcing layer. The reinforcing layer includes an inner reinforcing layer and an outer reinforcing layer. Further, the inner reinforcing layer includes a first covering portion, a third covering portion, and a second covering portion. Edge surfaces of the first covering portion and the third covering portion that face each other are in contact with each other. Edge surfaces of the third covering portion and the second covering portion that face each other are also in contact with each other. The outer reinforcing layer covers the outside of the first covering portion, the third covering portion, and the second covering portion.

High-pressure vessel and method for manufacturing same

A high-pressure tank is provided with a liner made of resin, a reinforcing layer including a plurality of fiber layers formed by winding fiber a plurality of times around the outer surface of the liner, and a cap fixed to the axial end portion of the liner and including a supply and discharge hole that supplies and discharges fluid to and from the liner. A starting end, which is a start of winding of the fiber, is disposed overlapping the cap.

High-pressure tank and method for manufacturing high-pressure tank

A high-pressure container inspection method includes a photographing step, an acquiring step, and a determining step. In the photographing step, a carbon fiber is photographed while an outer surface of the carbon fiber wound on a converging portion in an outer peripheral surface of a liner is irradiated with light. In the acquiring step, density information obtained by the reflection of the light with respect to the outer surface of the carbon fiber by the photographing is acquired. In the determining step, the density information obtained by the acquiring step is compared with preset density information to determine whether a shape of a reinforcing layer of the converging portion is good or bad.

High-pressure container inspection method and high-pressure container inspection apparatus

A manufacturing method and a jig for a high-pressure tank includes a filament winding step in which a reinforcing shaft is inserted from a cap toward the other end of a liner, the axial length of the liner is fixed by the reinforcing shaft, and a fiber-reinforced resin is wound; and a thermal curing step in which the fixing of the reinforcing shaft to the other end of the liner is released so that the liner can change in the axial direction, and the fiber-reinforced resin is heated.

Manufacturing method for high-pressure tank and manufacturing jig for high-pressure tank

A cap of a high-pressure gas tank includes a first member and a second member. The first member is located on the inner side of a liner. The second member is located on the outer side of the liner and is connected to the first member. A rotation restricting structure includes a first rotation restricting portion and a second rotation restricting portion. The first rotation restricting portion is provided on an inner surface of the liner. The second rotation restricting portion is provided on the first member so as to be fitted into the first rotation restricting portion.

High-pressure gas tank and method for manufacturing high-pressure gas tank

A winding section of a filament winding apparatus winds a fiber bundle around a filament-wound member. A tension acquisition part acquires a detected winding-tension value. A supply-speed acquisition part acquires a detected supply-speed value. A storage part stores correlation information in which an allowable determination range of winding tension is set in relation to the supply speed. A determination part determines whether the winding of the fiber bundle is successful or unsuccessful by comparing detected-value information, including the detected winding-tension value and the detected supply-speed value associated with each other, with the correlation information.

Filament winding apparatus and filament winding method

A reinforcement layer of a high-pressure vessel has a plurality of low helical layers. In at least one of the (i&#x2212;1)-th low helical layer and the i-th low helical layer, the difference between the diameter of an opening formed in an end portion of the (i&#x2212;1)-th low helical layer and the diameter of an opening formed in an end portion of the i-th low helical layer is equal to or larger than the width of the band-shaped fiber when an inclination angle WA of the band-shaped fiber is equal to or smaller than a second angle smaller than a first angle.

High-pressure vessel

A filament winding apparatus winds, around a workpiece, a fiber bundle formed by bundling a plurality of fibers. The filament winding apparatus includes a widening roller that rotates while making contact with the fiber bundle that is being conveyed. The widening roller has, provided on the peripheral surface, a plurality of projecting ridges extending in the axial direction, the projecting ridges being arranged side by side in the circumferential direction. The projecting ridges make contact with the fiber bundle to thereby widen the fiber bundle.

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Wako, Japan

Kosuke Tatsushima