FIBER-REINFORCED COMPOSITE RESIN GEAR

Japanese Patent JP3785214

B2

PROBLEM TO BE SOLVED: To provide heat resistance, a fatigue strength, and wear resistance, being applicable for high load application by a method wherein a modulus of elasticity of a surface part containing a tooth surface is below a specified value and the fatigue strength of the interior continued to the surface part is set to a value exceeding a specified value.
SOLUTION: In a fiber-reinforced composite resin gear, reinforcing fibers of a surface part has a modulus of elasticity of 10GPa or less and the reinforced fiber at the interior has strength of 50MPa or more. A gear 1 is formed such that a steel insert 12 is fitted in the core part of a fiber-reinforced composite resin part 11. A premolded product is set in a molding die having an inside size in the same shape as the outer shape of the gear 1, and epoxy resin is injected and cured to form the composite resin part 11 of the gear 1. The composite resin part 11 of the gear 1 is constituted such that, in a surface part 11S, chopped metha aramid fibers are dispersed in a matrix in a single continuous phase consisting of epoxy resin and in an inner part 11C, chopped carbon fibers are dispersed in the matrix. This constitution provides heat resistance, a fatigue strength, and wear resistance, which are applicable for high load application.

JPS5854272	COMPOSITE METAL-PLASTIC GEAR AND ITS MANUFACTURE
WO/2016/088577	RESIN HELICAL GEAR

Hamashima Kaneo

JP8663896A

June 14, 2006

April 09, 1996

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TOYOTA JIDOSHA KABUSHIKI KAISHA

F16H55/06; B29C70/06; C08J5/04; B29K105/12; (IPC1-7): F16H55/06; B29C70/06; C08J5/04; //B29K105:12

JP28542A
JP2241729A
JP874970A
JP6235170A
JP545956A
JP6359254U
JP251756U

Takashi Ishida
Masaya Nishiyama

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