Filament winding apparatus and yarn end processing method for the apparatus
AssigneeKabushiki Kaisha Toyoda Jidoshokki Seisakusho
InventorsYoshiharu Yasui, Yasuki Miyashita, Masaaki Amano
Life of this patent
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Abstract
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.
Claims8
An end processing method for winding a yarn impregnated with resin around the surface of a winding member with a guide member that moves back and forth in an axial direction of the winding member while supporting and rotating the winding member, the method comprising:
- holding a first end of the yarn with a holding device;
- initiating yarn winding at a first end of the winding member while the first end of the yarn is held by the holding device;
- cutting the yarn between the winding member and the holding device;
- releasing the yarn from the holding device before the winding is finished;
- and
- when winding of the yarn around the winding member is finished, winding the yarn at the first end of the winding member;
- holding the yarn with the holding device;
- and
- cutting the yarn between the winding member and the holding device.
A yarn end processing apparatus for a filament winding apparatus comprising:
- a rotary shaft for supporting a winding member;
- a holding device supported in a relatively rotatable manner on the rotary shaft, the holding device being rotatable together with the winding member while holding a yarn wound around the winding member;
- a yarn engagement device provided closer to the winding member than a yarn holding position by the holding device;
- and
- a mechanism for rotating the yarn engagement section when the holding device set in a release position.
A filament winding apparatus having an end processing apparatus, the end processing apparatus comprising:
- a rotary shaft for supporting a winding member;
- a holding device supported in a relatively rotatable manner on the rotary shaft, the holding device being rotatable together with the winding member while holding a yarn wound around the winding member;
- a yarn engagement device provided closer to the winding member than a yarn holding position by the holding device;
- and
- a mechanism for rotating the yarn engagement section when the holding device is set in a release position;
- wherein the end processing apparatus is a first end winding apparatus, and the filament winding apparatus further includes a second end processing apparatus, which has substantially the same structure as the first end processing apparatus, and is located at an opposite end of the winding member.
Dependencies are inferred from the claim text.