Abstract: A multilayer molded article constitutes a resin body and a skin material which covers a part of the surface of the resin body so that an edge part of the skin material present on the surface of the resin body is placed in a groove formed on the surface of the resin body. The article is produced by providing an unclosed mold having a lower mold having at least one pin for fixing the edge part of the skin material at a position where the edge part of the skin material is placed and an upper mold having a kick for forming the groove, placing the skin material on the lower mold and fixing the edge part of the skin material with the pin, supplying a mass of resin melt between the skin material and the lower mold, and closing the upper and lower molds to form the multilayer molded article.

Abstract: A multilayer molded article comprises a resin body and a skin material which covers a part of the surface of the resin body so that an edge part of the skin material present on the surface of the resin body is placed in a groove formed on the surface of the resin body. The article is produced by providing an unclosed mold comprising a lower mold having at least one pin for fixing the edge part of the skin material at a position where the edge part of the skin material is placed and an upper mold having a kick for forming the groove, placing the skin material on the lower mold and fixing the edge part of the skin material with the pin, supplying a mass of resin melt between the skin material and the lower mold, and closing the upper and lower molds to form the multilayer molded article.

Abstract: An apparatus for producing a multilayer molded article including a resin body and at least one sheet of a skin material, an edge part of which is present in a surface area of the resin body. The apparatus includes a mold, and a clamping device for clamping an edge part of a skin material or mated edge parts of adjacent skin materials during molding.

Abstract: A process is provided for producing a skin-integrated laminate using a mold assembly in which a female mold 1 is arranged above and facing a male mold 2 so as to be freely brought close to and away from the male mold, wherein the female mold 1 and the male mold 2 are arranged so as to form an end opening at the peripheral end of a cavity 11 when they are clamped, a plate mold 4 having an end-forming pointed end part 5 which can enter the above end opening is also provided, and the end of the skin material allowed to exist between the male mold 2 and the female mold 1 is clamped with a clamping mechanism 3 which can be freely opened and closed, whereby the skin material is adhered integratedly in layer to the molded synthetic resin substrate from its one side to the other end surface simultaneously with the forming of the substrate and whereby a skin-integrated laminate exhibiting a good appearance, whose skin material does not shrink even after the molding, can be produced in a good efficiency, and a mold ass

Abstract: A pressure molding apparatus for molten resin in which an oil-pressurized cylinder internally holding an end of gate pin can freely move in compatibility with thermal elongation or contraction of a manifold pipe. In addition, a limit switch to be activated by the descending movement of this cylinder in correspondence with the descending movement of the gate pin is interlinked to a molten-resin supply source. By provision of these mechanisms, molten resin can smoothly be delivered to the interior of a molding unit without obstruction. Since substantial space is provided around this cylinder, pipes can easily be installed. Furthermore the inner later surface of the gate aperture on the side of the gate pin is provided with an obtuse angle wider than the tip angle of the gate pin, and a tapered hole having an adequate length and tapered diameter expanding itself from the gate aperture to the inner surface of the molding unit is provided.

Abstract: A multilayer molded article comprising a resin body and at least one sheet of a skin material an edge part of which is present in a surface area of the resin body is efficiently produced by clamping an edge part of a skin material or mated edge parts of adjacent skin materials during molding.

Abstract: This invention is directed to a pressure molding apparatus for molten resin in which an oil-pressurized cylinder internally holding an end of gate pin can freely move in compatibility with thermal elongation or contraction of a manifold pipe. In addition, a limit switch to be activated by the descending movement of this cylinder in correspondence with the descending movement of the gate pin is interlinked to a molten-resin supply source. By provision of these mechanisms, molten resin can smoothly be delivered to the interior of a molding unit without obstruction. Since substantial space is provided around this cylinder, pipes can easily be installed. Furthermore, the inner lateral surface of the gate aperture on the side of the gate pin is provided with an obtuse angle wider than the tip angle of the gate pin, and a tapered hole having an adequate length and tapered diameter expanding itself from the gate aperture to the inner surface of the molding unit is provided.

Abstract: A method of manufacturing a laminated body consisting of a synthetic resin member provided with a layer member thereon, in which the member is bent to cover the edges of the resin member. The method includes the compression, resulting from a male mold and a female mold approaching each other, of the layer member and molten resin. The female mold has flanges mounted on its edges to permit the layer member to cover the edges of the resin during compression. Molten resin materials are supplied between the male and female molds prior to subsequent to the compression.

Abstract: A pressure molding apparatus for supplying molten resin to a mold includes a gate unit having an aperture therein for passage of molten resin into a mold cavity of the mold, a gate pipe connected for communication with the gate unit, and a gate pin which is axially movable within the gate pipe. The gate pin has a gate pin end at one end and a tip at another end thereof, the tip being engageable with the aperture for controlling flow of molten resin through the gate unit. The apparatus also includes a manifold pipe for supplying molten resin to the gate pipe, a connection arrangement for connecting the gate pipe to the manifold pipe. The connection arrangement includes a receiving portion for receiving molten resin from the manifold pipe, the gate pin passing completely through the receiving portion and the gate pin end extending beyond the connection arrangement.

Abstract: The invention provides a pressure molding apparatus for molten resin capable of efficiently maintaining the temperature of molten resin in the gate pipe, which is provided with molten-resin feeding gate pipes beneath the gate aperture of a molding unit composed of upper and lower molds in order that molten resin can be delivered to the interior of the molding unit before being pressed and molded, where the heater unit for maintaining the temperature of molten resin is disposed in the external periphery of the gate pipes in the state of being divided into two units in the vertical direction. Opposite portions of the gate pipe vertically being divided into two units are connected to each other so that length can optionally be adjusted to the extended or contracted direction, wherein the heater unit is discretely provided in the periphery of the gate pipes which are separately disposed.

Abstract: A process for the formation of a laminated body consisting of an upper layer member which covers a hardened synthetic resin is disclosed. The process includes the compression, resulting from a female mold and a male mold approaching each other, of the layer member and molten resins. The final engagement of the molds permits the cutting of the layer member so as to form or shape the ultimate laminated body.

Abstract: A multilayer molded article including a resin body and a skin material having little or no wrinkles or breakage in the skin material is molded by molding a resin melt and the skin material in the mold while removing the air trapped between the skin material and the mold.