Title:
PROCESS FOR PRODUCING TUBULAR STRUCTURE MADE OF FIBER-REINFORCED RESIN AND TUBULAR STRUCTURE MADE OF FIBER-REINFORCED RESIN
Document Type and Number:
WIPO Patent Application WO/2010/089863
Kind Code:
A1
Abstract:
A process for producing a tubular structure made of a fiber-reinforced resin is provided in which a drawing operation in the molding of a molding intermediate is facilitated and wall thickness can be inhibited from increasing. A strength improvement can also be attained. Also provided is a tubular structure made of a fiber-reinforced resin. Solid grip parts (23) are formed integrally with both width-direction edges of a tubular intermediate molding (15), each grip part (23) protruding outward in the width direction and continuously extending in the lengthwise direction. The inner surfaces of a pair of upper and lower holding dies (11, 12) are brought into contact with the surfaces of the intermediate molding (15) which has been cured. The grip parts (23) are sandwiched between the holding dies (11, 12) and this intermediate molding (15) in a compressed state is moved downstream over a given distance. A continuous carbon-fiber woven fabric including carbon fibers as the warp and impregnated with an uncured resin is inserted into the tubular molding space between a molding die and a core, and is drawn over a given distance from the upstream side to the downstream side while heating the impregnated woven fabric and applying a tension thereto. The resultant tubular intermediate molding (15) obtained through thermal curing is successively conveyed downstream and cut into a given length.
Inventors:
SANO, Hiromichi (1349-1 Hosojima, Shimada-sh, Shizuoka 12, 42785, JP)
佐野 広道 (〒12 静岡県島田市細島１３４９番地の１ サカイ・コンポジット株式会社内 Shizuoka, 42785, JP)
NAGASE, Hajime (1349-1 Hosojima, Shimada-sh, Shizuoka 12, 42785, JP)
佐野 広道 (〒12 静岡県島田市細島１３４９番地の１ サカイ・コンポジット株式会社内 Shizuoka, 42785, JP)
NAGASE, Hajime (1349-1 Hosojima, Shimada-sh, Shizuoka 12, 42785, JP)
Application Number:
JP2009/051891
Publication Date:
August 12, 2010
Filing Date:
February 04, 2009
Export Citation:
Assignee:
Sakai Composites Corp. (1349-1, Hosojima Shimada-sh, Shizuoka 12, 42785, JP)
サカイ・コンポジット株式会社 (〒12 静岡県島田市細島１３４９番地の１ Shizuoka, 42785, JP)
SANO, Hiromichi (1349-1 Hosojima, Shimada-sh, Shizuoka 12, 42785, JP)
佐野 広道 (〒12 静岡県島田市細島１３４９番地の１ サカイ・コンポジット株式会社内 Shizuoka, 42785, JP)
サカイ・コンポジット株式会社 (〒12 静岡県島田市細島１３４９番地の１ Shizuoka, 42785, JP)
SANO, Hiromichi (1349-1 Hosojima, Shimada-sh, Shizuoka 12, 42785, JP)
佐野 広道 (〒12 静岡県島田市細島１３４９番地の１ サカイ・コンポジット株式会社内 Shizuoka, 42785, JP)
International Classes:
B29C70/52; A61B6/03; A61B6/04
Attorney, Agent or Firm:
OGAWA, Shin-ichi et al. (Seiryu International Patent Office, 37 Kowa Building 4-5, Tsukiji 1-chome,Chuo-k, Tokyo 45, 10400, JP)