Kabushiki Kaisha Toyoda Jidoshokki Seisakusho

Kabushiki Kaisha Toyota Jidoshokki

Yasuki Miyashita

Yoshiharu Yasui

Meiji Anahara

Masaaki Amano

Junji Takeuchi

Yasuya Mita

Toshiro Kondo

Koya Suzuki

Two flat fiber bundles of non-twisted filaments are arranged in an overlapped relationship or in a parallel and adjoining relationship, and held by a gripper at two points spaced apart from each other in the filament-extending direction. Compressed air is injected from a nozzle to the overlapped portion of the fiber bundles between the holding points at a plurality of positions arranged in the direction transverse to the filament-extending direction to cause the adjacent filaments to be entangled. The nozzle is moved across the fiber bundles while injecting air. Filaments are thus opened and rotated by the injected air, and thus entangled. A fiber bundle joining apparatus includes support sections and a receiving section provided in a base, a gripper cooperating with the support sections to grip overlapped ends of fiber bundles therebetween, a nozzle, and a regulating member to temporarily hold the fiber bundles and to allow the lower fiber bundle to be slackened.

Method and apparatus for manufacturing fiber bundle with injected air

A FRP pipe comprising a helix winding layer formed by cylindrically winding reinforced fibers, wherein the helix winding layer has two ends and an axis and the reinforced fibers forming the helix winding layers are wound at an angle relative to the axis and hoop winding layers formed at each end of the helix winding layer by winding reinforced fibers at each end wherein the hoop layer are formed from the same continuous reinforced fibers, and the continuous reinforced fibers forming the hoop winding layers extend between the ends at an angle that is the same as the angle of the reinforced fibers forming the helix winding layer.

Fiber reinforced plastic pipe and filament winding apparatus

A propeller shaft comprising a shaft main body and a yoke which is mounted to the shaft main body with a serrated inserting portion thereof being press fitted into an inner circumferential surface of the shaft main body is constructed such that serration fit-in grooves having extending portions into which serration teeth travel when the yoke is allowed to sink into the shaft main body are formed in advance in the inner circumferential surface of the shaft main body . A method for producing the propeller shaft comprises a yoke press fitting step and a yoke withdrawing step that is to be performed after the former step.

Propeller shaft and method for producing the same

A filament winding apparatus winds yarn impregnated with resin around the surface of a mandrel with a guide member that moves back and forth axially. Yarn winding is initiated while an end of the yarn is held by a holding device provided in a relatively rotatable manner on a rotary shaft. After winding is started, the yarn extending from the mandrel to the holding device is cut. When winding is finished, the yarn is held with the holding device and the yarn is cut between the mandrel and the holding device with a yarn cutting device.

Filament winding apparatus and yarn end processing method for the apparatus

A fiber-reinforced plastic pipe has a joint section formed in one end. The joint section is coupled to another member. The pipe includes a helical layer formed with a fiber. The fiber is wound at a winding angle that is equal to or less than forty-five degrees. The fiber volume fraction of the joint section is lower than the fiber volume fraction of the remainder of the pipe.

Fiber-reinforced plastic pipe

A drive shaft having a body section and a yoke section formed with at least one end of the body section. A hole is formed in the yoke section. The body section and yoke section are integrally made of a fiber reinforced composite material including a filament and a plastic adhered to the filament. The shaft comprises a plurality of shaft fiber layers forming the body section. Each shaft fiber layer includes a plurality of shaft fiber elements being arranged at predetermined intervals. A plurality of yoke fiber layers form the yoke section. Each yoke fiber layer includes a plurality of yoke fiber elements. Each yoke fiber element has ends connected to each shaft fiber element. Each yoke fiber element has either a closed loop arrangement (CLA) or an open loop arrangement (OLA). The CLA is defined by the yoke fiber elements forming closed loops around the hole. The OLA is defined by the yoke fiber elements forming open loops around the hole.

Drive shaft made of fiber reinforced composite material and method of

An energy absorber is formed of a fiber reinforced composite into a cylinder having a plurality of portions so that the thickness of the body gradually increases in at least two stages in the axial direction. Reinforcing fiber is wound around at least in a circumferential direction of the body and is impregnated with a resin. The body of the energy absorber has a thin portion continuous to a first end. The end surface of the first end has an area equal to or smaller than 2/3 of the cross-sectional area of the thin portion the vicinity of the junction between the thin portion and the portion adjacent which is thicker than that thin portion. That cross-sectional area of the thin portion continuously increases to the middle of the thin portion from the first end side. The energy absorber is used in a state where impact is applied from the axial direction of the body.

Growing community of inventors

Kariya, Japan

Yasuki Miyashita