摘要:
The present invention provides a molding sheet material having a sandwich structure produced by preparing a fiber reinforced thermoplastic resin layer (A) reinforced with a woven fabric or a knitted web and a fiber reinforced thermoplastic resin layer (B) reinforced with a random mat and using the layer (A) as a core layer and the layer (B) as a skin layer, or using the layer (B) as a core layer and the layer (A) as a skin layer. When this sheet material is molded into a three-dimensional structure, the layer (B) serves as a cushion to prevent the occurrence of a wrinkle or a crease in the layer (A). A toe puff for a safety shoe having a light weight and excellent pressing resistance can be prepared through the molding of this sheet material. In the sheet materials, the core layer or the skin layer consisting of a fiber reinforced thermoplastic resin reinforcing with a woven fabric or a knitted web of a reinforcing fiber may be prepared from a woven fabric or a knitted web of a reinforcing fiber alone.
摘要:
The present invention provides a molding sheet material having a sandwich structure produced by preparing a fiber reinforced thermoplastic resin layer (A) reinforced with a woven fabric or a knitted web and a fiber reinforced thermoplastic resin layer (B) reinforced with a random mat and using the layer (A) as a core layer and the layer (B) as a skin layer, or using the layer (B) as a core layer and the layer (A) as a skin layer. When this sheet material is molded into a three-dimensional structure, the layer (B) serves as a cushion to prevent the occurrence of a wrinkle or a crease in the layer (A). A toe puff for a safety shoe having a light weight and excellent pressing resistance can be prepared through the molding of this sheet material. In the sheet materials, the core layer or the skin layer consisting of a fiber reinforced thermoplastic resin reinforcing with a woven fabric or a knitted web of a reinforcing fiber may be prepared from a woven fabric or a knitted web of a reinforcing fiber alone.
摘要:
A coupling device (10) comprises a shaft member (11) having a coupling ring (12) pivotably mounted thereon, a hook (13), a cylindrical casing (15) and a compression spring (14). The coupling ring (12) is pivotable into a horizontal position in which the hook (13), the casing (15) and the spring (14) are removable from the shaft member (11) and into a vertical position in which the hook (13) is rotatable with the casing (15) relative to the coupling ring (12).
摘要:
A method for manufacturing a shoe toe element ( 4 ) having light weight and high stiffness, which may be adapted to a safety shoe of high workability and high safety. A method for manufacturing a box toe element for a safety shoe comprises the steps of, covering a core mould ( 2 ) with a raw material ( 4 ) three-dimentionally woven of inorganic fiber and synthetic resin fiber, and heating and pressing the raw material ( 4 ) to be compression-moulded between the core mould ( 2 ) and a press mould ( 3 ). It is able to produce a shoe toe element ( 4 ) having light weight, high stiffness, and homogeneity at each part thereof.
摘要:
A coupling device (10) comprises a shaft member (11) having a coupling ring (12) pivotably mounted thereon, a hook (13), a cylindrical casing (15) and a compression spring (14). The coupling ring (12) is pivotable into a horizontal position in which the hook (13), the casing (15) and the spring (14) are removable from the shaft member (11) and into a vertical position in which the hook (13) is rotatable with the casing (15) relative to the coupling ring (12).