Abstract: A method for manufacturing a foam molded body according to the present disclosure is a method for manufacturing a foam molded body to obtain a foam molded body in which a portion of an embedded member is exposed from a foam body by use of a mold (1). An embedded member (12) is placed in a cavity (S1) of the mold (1), a foam raw material in the cavity (S1) is foamed, and a gas is injected toward a portion (12a) of the embedded member (12). The injection pressure of the gas is a pressure that is equivalent to the foaming pressure of the foam raw material, and the injecting of the gas is started at the point in time when the foam raw material starts to react and is continued at least until the rise time of the foam raw material elapses.

Abstract: A seat pad including a cushion pad 1. The cushion pad (1) includes a soft foam (2) and a beaded foam (3) embedded in the soft foam (2). The bottom surface of the cushion pad (1) is formed by the bottom surface (2f2) of the soft foam (2).

Abstract: A composition for a flexible polyurethane foam that enables manufacturing of a flexible polyurethane foam with reduced odor and excellent curability is provided. The composition for a flexible polyurethane foam contains a polyether polyol (A), a reactive amine catalyst (B) with one or more amino groups and one or more hydroxyl groups, a non-reactive amine catalyst (C) with one or more amino groups and no hydroxyl group, and a silicone foam stabilizer (D), wherein, when the total amount of polyol components without amino groups is considered to be 100 parts by mass, the content of the reactive amine catalyst (B) is 0.01 to 1.3 parts by mass, the non-reactive amine catalyst (C) is 0.01 to 0.20 parts by mass, the silicone foam stabilizer (D) is 0.2 to 1.5 parts by mass, and the silicone foam stabilizer (D) contains two types of silicones (D1 and D2) with different surface tensions.

Abstract: A porous structural body 1 made of flexible resin or rubber, the porous structural body includes a skeleton part 2 throughout its entirety. The skeleton part includes a plurality of bone parts 2B and a plurality of coupling parts 2J coupling end parts of the plurality of respective bone parts with each other. The skeleton part has a plurality of annular parts 211 each constituted of the plurality of bone parts and the plurality of coupling parts into an annular shape. Each annular part zones a virtual surface V1 by its inner peripheral side edge part 2111. At least a part of each of one or a plurality of the virtual surfaces is covered with one or a plurality of partially connected films 31. Each of the one or plurality of partially connected films is connected to only a part of the annular part in a peripheral direction.

Abstract: A seat pad (1) includes a surface portion (1a) configured of a polyurethane foam (11). In the surface portion (1a), wiring grooves (2) for wiring a wire harness (3) are formed. Each wiring groove (2) has a groove width W narrower than the diameter (?3) of the harness (3), and a groove depth (D) deeper than the diameter ?3 of the harness (3). A seat pad manufacturing method uses, as a molding die, a molding die that has groove-forming protrusions to form the wiring grooves (2) and has holes formed in side surfaces of the groove-forming protrusions. A polyurethane foam material is supplied to an interior of the molding die, and when a molded product is removed from the molding die, molded portions formed in the holes are forcibly pulled out of the holes of the groove-forming protrusions.

Abstract: A porous structural body 1 is a porous structural body made of flexible resin or rubber, the porous structural body including a skeleton part 2 throughout an entirety thereof, wherein the skeleton part includes: a plurality of bone parts 2B; and a plurality of connection parts 2J that connect end portions of the plurality of bone parts, and wherein the porous structural body is configured such that a plurality of portions of the skeleton part interfere with each other when the porous structural body is compressed to deform in a predetermined weight input direction.

Abstract: A mold 200 is a mold for molding a foam body, the mold including: a mold body portion 260; and a degassing tool 270 attached to the mold body portion. The degassing tool is formed of porous metal, and a surface 270a of the degassing tool that is on a side of a cavity of the mold forms part of a molding surface S of the mold.

Abstract: A filling-body manufacturing method is a method of manufacturing a filling body 8 that fills a hole part 74 formed at a seat body 7 and at least part of which is bonded to the seat body 7 in a passenger-seat cushion member including the seat body 7 and the filling body, the filling body 8 being a porous structural body 1S made of flexible resin or rubber, the filling-body manufacturing method including a shaping step of shaping the filling body 8 by using a 3D printer.

Abstract: A method for manufacturing a foam molded body according to the present disclosure is a method for manufacturing a foam molded body to obtain a foam molded body in which a portion of an embedded member is exposed from a foam body by use of a mold (1). An embedded member (12) is placed in a cavity (S1) of the mold (1), a foam raw material in the cavity (S1) is foamed, and a gas is injected toward a portion (12a) of the embedded member (12). The injection pressure of the gas is a pressure that is equivalent to the foaming pressure of the foam raw material, and the injecting of the gas is started at the point in time when the foam raw material starts to react and is continued at least until the rise time of the foam raw material elapses.

Abstract: A seat pad (1) has a hollow body (10) made of resin and a foam body (F) in which the hollow body (10) is embedded. The hollow body (10) has one or more apertures (A10) formed therein, and the one or more apertures (A10) are formed to satisfy the condition of 10?S/V (where S is total area of the apertures, and V is internal volume of the hollow body). A method for manufacturing a seat pad uses the hollow body (10) and includes a hollow body placement step of placing the hollow body (10) in a cavity formed by closing a molding die, and a foam body formation step of forming the foam body by foaming resin supplied into the cavity after the hollow body placement step.

Abstract: A passenger-seat-cushion-member manufacturing method including a step of shaping the porous structural body by using a 3D printer; and a step of coupling the filling body side coupling part including the shaped porous structural body to the seat body side coupling part, to fill the seat body with the filling body.

Abstract: Provided is a charging roller that can achieve excellent image quality and prevent detachment of particles in its surface layer. A charging roller 1 comprises a shaft 2 and, on an outer circumferential side of the shaft 2, at least a base layer 3 and a surface layer 4, wherein the surface layer 4 contains a binder resin 41 and particles 42, and the particles 42 contain 50 mass % or more of a same component A as at least one selected from components constituting the binder resin 41, and a content of the particles in the surface layer is 30 parts to 120 parts by mass with respect to 100 parts by mass of the binder resin.

Abstract: A seat pad with improved thermal comfort and improved vibration absorptivity and a seat pad manufacturing method for easily obtaining the seat pad are provided. In the seat pad (1), when a surface portion (2) up to 10 mm from a surface (1f) is cut out and the air permeability AR1 of the surface portion (2) is measured in compliance with JIS K 6400, the air permeability AR1 is more than 5 cc/cm2/sec and 25 cc/cm2/sec or less. The seat pad manufacturing method is a seat pad manufacturing method for obtaining the seat pad (1) by supplying a molding material into a molding die and performing foam molding. As the molding die, a molding die an inner surface of which is covered with polystyrene or polyethylene is used.

Abstract: It would be helpful to provide a seat covering material that prevents the occurrence of wrinkles and has excellent design properties, and to provide, with the use of such a seat covering material, a seat that prevents the occurrence of wrinkles and has excellent design properties. A seat covering material 1 and a seat using such a seat covering material 1 include at least an outer layer 2, a resin foam layer 3, and a lining layer 4. At least one of the lining layer 4 or the resin foam layer 3 has cuts 5.

Abstract: A seat pad (1) includes a surface portion (1a) configured of a polyurethane foam (11). In the surface portion (1a), wiring grooves (2) for wiring a wire harness (3) are formed. Each wiring groove (2) has a groove width W narrower than the diameter (? 3) of the harness (3), and a groove depth (D) deeper than the diameter ?3 of the harness (3). A seat pad manufacturing method uses, as a molding die, a molding die that has groove-forming protrusions to form the wiring grooves (2) and has holes formed in side surfaces of the groove-forming protrusions. A polyurethane foam material is supplied to an interior of the molding die, and when a molded product is removed from the molding die, molded portions formed in the holes are forcibly pulled out of the holes of the groove-forming protrusions.

Abstract: A seat pad (302) includes a fitting member (51) having a fitting portion (510) and a fitted member (52) having a fitted portion (520) configured to be fitted with the fitting portion, wherein the fitting member and the fitted member are each constituted of a porous structural body (1), the porous structural body is made of a flexible resin or rubber, the porous structural body (1) includes a skeleton part (2) over almost the entirety of the porous structural body, and the skeleton part includes a plurality of bone parts (2B) and a plurality of connection parts (2J) each configured to connect ends of the plurality of bone parts.

Abstract: A seat pad including a cushion pad 1. The cushion pad (1) includes a soft foam (2) and a beaded foam (3) embedded in the soft foam (2). The bottom surface of the cushion pad (1) is formed by the bottom surface (2f2) of the soft foam (2).

Abstract: A covering material (1) includes an outer layer (2) made of natural leather, a resin foam layer (3) adhered to a back surface of the outer layer (2), and a lining layer (4) provided on a back surface of the resin foam layer (3). In the lining layer (4), slits (5) are formed.