A method for welding a heat shield during manufacturing of a vehicle component made from a thermoplastic material. The heat shield includes: a reinforcement layer made from a thermoplastic material which is weldable to the thermoplastic material of the vehicle component; and a heat shielding material that differs from the thermoplastic material of the reinforcement layer and is configured to decrease transfer of heat through the reinforcement layer to the vehicle component. The method includes: heating the heat shield to bring the thermoplastic material of the reinforcement layer in a molten state; placing the heated heat shield in a mold; bringing into the mold the thermoplastic material of the vehicle component in a molten state; welding the thermoplastic material of the reinforcement layer being in a molten state to the thermoplastic material of the vehicle component being in a molten state, by blow molding the vehicle component in the mold.

A fuel tank has a built-in component with a head portion, a neck portion, and a shoulder portion, and has the built-in component anchored to a tank body with a parison wrapped around the neck portion during molding. The fuel tank includes a deformation prevention structure configured to prevent a wrapping parison portion wrapped around the neck portion from being deformed due to pressure acting on the tank body. The deformation prevention structure is configured to include one of a stepped portion provided in the shoulder portion, a convex portion, and a recess.

A fuel tank has a built-in component with a head portion, a neck portion, and a shoulder portion, and has the built-in component anchored to a tank body with a parison wrapped around the neck portion during molding. The fuel tank includes a deformation prevention structure configured to prevent a wrapping parison portion wrapped around the neck portion from being deformed due to pressure acting on the tank body. The deformation prevention structure is configured to include one of a stepped portion provided in the shoulder portion, a convex portion, and a recess.

The present disclosure provides a washing machine and a manufacturing method of a circulating water supply pipe. The washing machine includes a casing having a front surface on which a laundry inlet is formed, a tub which is disposed in the casing and has an opening at a front surface thereof, a drum which is rotatably provided in the tub, a pump which pressure-feeds water discharged from the tub, a gasket which forms a passage connecting the laundry inlet and the opening to each other, a plurality of nozzles which is provided on an inner peripheral surface defining the passage of the gasket and injects the water pressure-fed by the pump into the drum, and a circulating water supply pipe which is disposed on an outer peripheral surface of the gasket opposite to the inner peripheral surface and guides the water pressure-fed by the pump to the plurality of nozzles.

The present disclosure provides a washing machine and a manufacturing method of a circulating water supply pipe. The washing machine includes a casing having a front surface on which a laundry inlet is formed, a tub which is disposed in the casing and has an opening at a front surface thereof, a drum which is rotatably provided in the tub, a pump which pressure-feeds water discharged from the tub, a gasket which forms a passage connecting the laundry inlet and the opening to each other, a plurality of nozzles which is provided on an inner peripheral surface defining the passage of the gasket and injects the water pressure-fed by the pump into the drum, and a circulating water supply pipe which is disposed on an outer peripheral surface of the gasket opposite to the inner peripheral surface and guides the water pressure-fed by the pump to the plurality of nozzles.

The invention relates to a method for producing hollow bodies from thermoplastic material and to an apparatus for carrying out the method. The method comprises the molding of at least two sheet-like preforms in web form of thermoplastic material into two complementary shells in a multi-part tool, which in a closed position forms a mold impression, and the joining together of the shells to form an essentially closed hollow body, the preforms being brought between the parts of the tool in an opened receiving position of the parts of the tool and the preforms being placed into the part-cavities by applying differential pressure and being at least partially molded in them into shells. The shells are joined together to form an essentially closed hollow body by closing the tool to form a closed mold impression. The method is distinguished by the fact that the preforms are molded in the part-cavities while the parts of the tool are located in the opened receiving position.

The invention relates to a method for producing hollow bodies from thermoplastic material and to an apparatus for carrying out the method. The method comprises the molding of at least two sheet-like preforms in web form of thermoplastic material into two complementary shells in a multi-part tool, which in a closed position forms a mold impression, and the joining together of the shells to form an essentially closed hollow body, the preforms being brought between the parts of the tool in an opened receiving position of the parts of the tool and the preforms being placed into the part-cavities by applying differential pressure and being at least partially molded in them into shells. The shells are joined together to form an essentially closed hollow body by closing the tool to form a closed mold impression. The method is distinguished by the fact that the preforms are molded in the part-cavities while the parts of the tool are located in the opened receiving position.

Methods for producing toothbrush handles having an inner cavity are provided.

A method for manufacturing an internal reinforcement for a motor vehicle tank, the internal reinforcement being designed to connect an upper wall and a lower wall of the tank, is provided. The method includes extruding material forming a so-called extruded portion of the internal reinforcement. An internal reinforcement for a motor vehicle tank obtained by this method is also provided.

A method for manufacturing an internal reinforcement for a motor vehicle tank, the internal reinforcement being designed to connect an upper wall and a lower wall of the tank, is provided. The method includes extruding material forming a so-called extruded portion of the internal reinforcement. An internal reinforcement for a motor vehicle tank obtained by this method is also provided.