| 摘要 |
PURPOSE:To prevent lowering of performance and service life of read valve caused by deformation occurring at manufacturing or using. CONSTITUTION:In a read valve 1A made of a fiber reinforced resin member composed of a reinforced fiber 12 and a thermoplastic resin 13, a plurality of sheets of the reinforced fiber impregnated the thermoplastic resin as matrix are overlapped by shifting its fiber direction by 30 deg.-40 deg.. In the read valve1A made of the fiber reinforced resin member composed of the reinforced fiber and the thermoplastic resin, the reed valve 1A is bent so that the sitting surface side becomes recessed by making the thickness of the sitting surface side of a layer formed by the thermoplastic resin 13 to become a matrix larger than that of non-sitting surface side. |
