Abstract: A pressure vessel can include a liner having a cylindrical section and a pair of dome sections; and a reinforcement layer constituted by a fiber-reinforced resin material and formed on the outside of the liner. The pressure vessel's reinforcement layer can include protruding sections formed so as to protrude at the dome sections by high-angle helical winding; and a central section formed by hoop winding which spans the area between each peak of the pair of protruding sections, or by approximate hoop winding in which winding is carried out at a higher angle than the high-angle helical winding.

Abstract: A pressure vessel can include a liner having a cylindrical section and a pair of dome sections; and a reinforcement layer constituted by a fiber-reinforced resin material and formed on the outside of the liner. The pressure vessel's reinforcement layer can include protruding sections formed so as to protrude at the dome sections by high-angle helical winding; and a central section formed by hoop winding which spans the area between each peak of the pair of protruding sections, or by approximate hoop winding in which winding is carried out at a higher angle than the high-angle helical winding.

Abstract: A mounting structure for a vehicular resin component provided with a panel body having a design surface on a surface of the panel body; a reinforcement rib arranged upright on a back surface of the panel body; and a mounting member for a vehicle. The reinforcement rib includes a proximal end portion connected to the panel body and formed with a thickness thinner than a thickness of a distal end portion. The distal end portion of the reinforcement rib includes an inclined surface formed between the distal end portion and the proximal end portion with increasing thickness toward the leading end side, and is provided with a locking hole with a hole direction inclined in the direction of inclination of the inclined surface. In the mounting member, a locking claw capable of being fitted in the locking hole is formed.

Abstract: A production apparatus includes the following stations juxtaposed in the following sequence: a parison forming station for forming a parison; a built-in part attachment station where opposite sides of a center die provided with a built-in part are held between a pair of molding dies to locate the center die in the molding dies with the parison between the center die and the molding dies, and the built-in part being attached to the parison transferred to the molding dies; a molding station where the molding dies are closed to mold the hollow molded product; and a conveyance station for taking the hollow molded product out of the molding dies and conveying the hollow molded product. The center die is fixed at the built-in part attachment station, and the molding dies are configured to be movable back and forth between the built-in part attachment station and the molding station.

Abstract: A mounting structure for a vehicular resin component provided with a panel body having a design surface on a surface of the panel body; a reinforcement rib arranged upright on a back surface of the panel body; and a mounting member for a vehicle. The reinforcement rib includes a proximal end portion connected to the panel body and formed with a thickness thinner than a thickness of a distal end portion. The distal end portion of the reinforcement rib includes an inclined surface formed between the distal end portion and the proximal end portion with increasing thickness toward the leading end side, and is provided with a locking hole with a hole direction inclined in the direction of inclination of the inclined surface. In the mounting member, a locking claw capable of being fitted in the locking hole is formed.

Abstract: A production apparatus includes the following stations juxtaposed in the following sequence: a parison forming station for forming a parison; a built-in part attachment station where opposite sides of a center die provided with a built-in part are held between a pair of molding dies to locate the center die in the molding dies with the parison between the center die and the molding dies, and the built-in part being attached to the parison transferred to the molding dies; a molding station where the molding dies are closed to mold the hollow molded product; and a conveyance station for taking the hollow molded product out of the molding dies and conveying the hollow molded product. The center die is fixed at the built-in part attachment station, and the molding dies are configured to be movable back and forth between the built-in part attachment station and the molding station.

Abstract: A resin part for a vehicle provided with: a panel body having a design surface; and stepped reinforcing ribs, which are vertically arranged on the inside surface of the panel body, in which the wall thickness of the base end portion is formed to be thinner than the wall thickness of the leading end portion, and in which the side ends at the end in the direction in which the ribs extend (arrow (X) direction) are open. Resin supply ports, to which molten resin is supplied prior to the base end portion, are formed in the leading end portion.

Abstract: A production apparatus includes the following stations juxtaposed in the following sequence: a parison forming station for forming a parison; a built-in part attachment station where opposite sides of a center die provided with a built-in part are held between a pair of molding dies to locate the center die in the molding dies with the parison between the center die and the molding dies, and the built-in part being attached to the parison transferred to the molding dies; a molding station where the molding dies are closed to mold the hollow molded product; and a conveyance station for taking the hollow molded product out of the molding dies and conveying the hollow molded product. The center die is fixed at the built-in part attachment station, and the molding dies are configured to be movable back and forth between the built-in part attachment station and the molding station.

Abstract: A resin part for a vehicle provided with: a panel body having a design surface; and stepped reinforcing ribs, which are vertically arranged on the inside surface of the panel body, in which the wall thickness of the base end portion is formed to be thinner than the wall thickness of the leading end portion, and in which the side ends at the end in the direction in which the ribs extend (arrow (X) direction) are open. Resin supply ports, to which molten resin is supplied prior to the base end portion, are formed in the leading end portion.

Abstract: In a crosshead, a pair of sheets (7) are formed by bisecting a parison (3) suspended from a resin flow passage (30) formed between a core (9) and a die (8) by causing a first dividing body (33) of a separator (5, 5a) provided on the core (9) or the die (8) to contact a second dividing body (40) provided on the core (9) or the die (8).

Abstract: In a crosshead, a pair of sheets (7) are formed by bisecting a parison (3) suspended from a resin flow passage (30) formed between a core (9) and a die (8) by causing a first dividing body (33) of a separator (5, 5a) provided on the core (9) or the die (8) to contact a second dividing body (40) provided on the core (9) or the die (8).

Abstract: There are provided a part fixing structure and a part fixing method to a resin-made fuel tank which can firmly fix a part to a tank wall without the need of providing a molding die with a convex portion and a recess. A part fixing method for fixing a tank-associated part to a tank wall of a resin-made fuel tank, the part being formed together with a pair of hook portions, the method comprising a step of burying the hook portions in the tank wall in a melted state when the resin-made fuel tank is molded, thereby fixing the part to the tank wall after the tank wall is cooled. In order to cause the resin of the tank wall to flow well, a chevron portion having a pair of first inclined faces is projectingly provided at the bottom face of the part between the hook portions, and a second inclined face which is inclined in a direction opposite to the buried direction toward the tip of the hook portion is formed at the bottom face of each hook portion.

Abstract: The present invention provides a hollow container that enables the suppression of permeation of the content of the hollow container to the outside. A hollow container 1A includes a hollow container body 2A and a sub-component 3A. The hollow container body 2A has an opening 2a in its wall. The sub-component 3A is inserted in the opening 2a and is in contact with an outer surface of the wall at a contact portion 2c of the container body 2A to seal the container body 2A. The container body 2A is made of multiple layers including an intermediate barrier layer 2x. The wall of the container body 2A is thinner at a circumferential edge portion around the opening 2a as a thinner portion 2b than at the contact portion 2c where the sub-component 3A is in contact with the outer surface of the wall.

Abstract: A production apparatus includes the following stations juxtaposed in the following sequence: a parison forming station for forming a parison; a built-in part attachment station where opposite sides of a center die provided with a built-in part are held between a pair of molding dies to locate the center die in the molding dies with the parison between the center die and the molding dies, and the built-in part being attached to the parison transferred to the molding dies; a molding station where the molding dies are closed to mold the hollow molded product; and a conveyance station for taking the hollow molded product out of the molding dies and conveying the hollow molded product. The center die is fixed at the built-in part attachment station, and the molding dies are configured to be movable back and forth between the built-in part attachment station and the molding station.

Abstract: There are provided a part fixing structure and a part fixing method to a resin-made fuel tank which can firmly fix a part to a tank wall without the need of providing a molding die with a convex portion and a recess. A part fixing method for fixing a tank-associated part to a tank wall of a resin-made fuel tank, the part being formed together with a pair of hook portions, the method comprising a step of burying the hook portions in the tank wall in a melted state when the resin-made fuel tank is molded, thereby fixing the part to the tank wall after the tank wall is cooled. In order to cause the resin of the tank wall to flow well, a chevron portion having a pair of first inclined faces is projectingly provided at the bottom face of the part between the hook portions, and a second inclined face which is inclined in a direction opposite to the buried direction toward the tip of the hook portion is formed at the bottom face of each hook portion.