A helical winding unit of a filament winding apparatus includes guide members guiding fiber bundles F to a liner, a movement mechanism moving the guide members, and a rotation mechanism rotating the guide members. Each of the guide members includes two side walls and guide portions fixed between the two side walls. As the guide portions, a first guide portion having a first guide surface and a second guide portion having a second guide surface and provided downstream of the first guide portion are provided. In the height direction, the first guide surface is oriented to one side. The second guide surface is oriented to the other side in the height direction and provided on the other side of the first guide surface.

A helical winding unit of a filament winding apparatus includes guide members guiding fiber bundles F to a liner, a movement mechanism moving the guide members, and a rotation mechanism rotating the guide members. Each of the guide members includes two side walls and guide portions fixed between the two side walls. As the guide portions, a first guide portion having a first guide surface and a second guide portion having a second guide surface and provided downstream of the first guide portion are provided. In the height direction, the first guide surface is oriented to one side. The second guide surface is oriented to the other side in the height direction and provided on the other side of the first guide surface.

A process and apparatus for separating a carbon filament tow into a set of reduced filament count bundles. The process includes feeding a tow of carbon filaments into a guide array, mechanically splitting the tow within the guide array into filament bundles, removing a coating from the filament bundles, feeding the filament bundles into a guide pin assembly to separate the filament bundles with a reduced filament count from one another, applying a false twist to the filament bundles to loosen individual filaments then recombining the individual filaments of each filament bundle into a re-bundled ribbon. Coatings may be applied to each re-bundled ribbon prior to winding each re-bundled ribbon onto a take-up.

A thread-wrapping device for a percussion mallet is disclosed. The thread-wrapping device includes a frame, a spindle, and a wrapping arm. The spindle is designed to retain the percussion mallet and is rotatably supported by the frame. The wrapping arm is supported by the frame and designed to rotate when the spindle rotates to wrap thread around a head of the percussion mallet. Further, a hand crank is provided to rotate the spindle and wrapping arm.

The invention makes it possible to perform regular winding of a wire easily, inexpensively, and reliably. During traversing a winding position in the reel axis direction, while a guide roller 2 is held at a position where the distance (D) from the wound surface on the outer circumference of a reel body 1a is in a range of more than 0 mm to 30 mm or less, it is kept at an orientation where a roller radial center line P is perpendicular to a reel axis R at a position apart from a border with a reel flange 1b, and gradually inclined, with movement of a reel 1 in the reel axis direction, in a direction in which the roller outer edge goes away from the reel flange 1b ahead in the traverse direction on the side apart from the reel body 1a relative to a rotation center C, as a fulcrum, located near the outer edge on the side near the outer circumference of the body of the reel 1 at a position of the border of the reel flange 1b.

A transfer device for limiting a twisting of a link between an end of the fixed link with respect to a fixed part and an end of the fixed link with respect to a revolving part that can revolve with respect to the fixed part about an axis of rotation, the transfer device for a link includes a composite drum comprising a set of drums aligned on the axis of rotation about which the link can be wound, the set of drums comprising a fixed drum intended to be secured to the fixed part in rotation about the axis of rotation, a revolving drum intended to be able to revolve about the axis x with respect to the fixed part and a set of at least one loose drum interposed between the fixed drum and the revolving drum, each loose drum being free to rotate about the axis of rotation with respect to the revolving drum and the fixed drum and having a height on the axis.