Abstract: A mattress according to the invention is formed from a plurality of layers stacked in a thickness direction thereof, and includes a tactile layer that is positioned on an upper side in use, and a cushion layer that is positioned on a lower side in use. The tactile layer and the cushion layer each contain an elastic body constituted of a filament three-dimensional assembly. The elastic body contained in the cushion layer has a larger resiliency than that of the elastic body contained in the tactile layer, and is 100 N or more and 200 N or less. The elastic body contained in the tactile layer has a resiliency of 10 N or more and 80 N or less. The tactile layer shows a constant sinking displacement regardless of load.

Abstract: In a device for manufacturing a filament three-dimensional bonded member that includes: a molten filament supply unit that discharges a molten filament group downward; a chute that includes a chute inclined plate which receives a molten filament at an end in thickness direction of the group and displaces the group in such a direction as to reduce thickness of the group; a cooling water supply unit that supplies cooling water to the plate; and a fusing formation unit that three-dimensionally entangles molten filaments and simultaneously fuses contact points, grooves are formed in an upper surface of the plate, the width of each of the grooves is 0.1 mm or more and 3.0 mm or less, the depth of each of the grooves is 0.1 mm or more and 3 mm or less and a distance between the adjacent grooves is 1 mm or more and 7 mm or less.

Abstract: A cushion member is provided which can stabilize a head position while sinking a head moderately. The cushion member is a cushion member for a pillow which is formed using a filament three-dimensional bonded member obtained by three-dimensionally fusing filaments formed of a thermoplastic resin, in a width direction, repulsive forces in regions on the sides of both end portions are higher than a repulsive force in the region of a center portion and in a depth direction, repulsive forces in regions on the sides of both end portions are higher than a repulsive force in the region of a center portion.

Abstract: A method for producing a seat cushion includes a molten filament supplying step of discharging a plurality of molten filaments of a thermoplastic resin or the like downward in a thermal vertical direction from a plurality of nozzle holes, a three-dimensional filaments fused body forming step of fusion-bonding contact points between the plurality of molten filaments while three-dimensionally entangling the molten filaments to form a three-dimensional filaments fused body, and a three-dimensional filaments-linked structure forming step of cooling and solidifying the three-dimensional filaments fused body while drawing the three-dimensional filaments fused body with an underwater drawing machine provided in cooling water to thereby form a three-dimensional filaments-linked structure, the three-dimensional filaments-linked structure forming step includes a three-dimensional filaments-linked structure density controlling step of controlling a density of the three-dimensional filaments fused body by varying a drawi

Abstract: A pillow cushion is provided in which a repulsive force is unlikely to concentrate on an area in the vicinity of the apex of a back head portion and thus the head of a user is easily stabilized. In the pillow cushion formed with a filament three-dimensional bonded member in which, in a state where a plurality of filaments formed of a thermoplastic resin or a thermoplastic elastomer are three-dimensionally entangled, contact points of the filaments are fused, the density of the filaments in a back head portion support region is higher in both end portions in the direction of left and right shoulders than in a center portion.

Abstract: A mattress in which a vibration is unlikely to be transmitted between different cushion members is provided. The mattress includes a mattress cushion on which a plurality of persons can lie in a left/right direction, the mattress cushion includes a plurality of cushion members that can be separated in the left/right direction, each of the cushion members is formed with a filament three-dimensional bonded member that includes a plurality of filaments, and includes a contact surface that is in contact with another cushion member adjacent to the cushion member and ends of the filaments of the cushion member do not enter the other cushion member adjacent to the cushion member.

Abstract: A mattress according to the invention is formed from a plurality of layers stacked in a thickness direction thereof, and includes a tactile layer that is positioned on an upper side in use, and a cushion layer that is positioned on a lower side in use. The tactile layer and the cushion layer each contain an elastic body constituted of a filament three-dimensional assembly. The elastic body contained in the cushion layer has a larger resiliency than that of the elastic body contained in the tactile layer, and is 100 N or more and 200 N or less. The elastic body contained in the tactile layer has a resiliency of 10 N or more and 80 N or less. The tactile layer shows a constant sinking displacement regardless of load.

Abstract: A cut surface smoothing device which can smooth the cut surface of a filament three-dimensional bonded member is provided. The cut surface smoothing device includes a high temperature portion which is heated to a temperature equal to or higher than the melting point of the filament three-dimensional bonded member, and the high temperature portion is applied to the cut surface of the filament three-dimensional bonded member to smooth the cut surface.

Abstract: A cushion member is provided which can stabilize a head position while sinking a head moderately. The cushion member is a cushion member for a pillow which is formed using a filament three-dimensional bonded member obtained by three-dimensionally fusing filaments formed of a thermoplastic resin, in a width direction, repulsive forces in regions on the sides of both end portions are higher than a repulsive force in the region of a center portion and in a depth direction, repulsive forces in regions on the sides of both end portions are higher than a repulsive force in the region of a center portion.

Abstract: A bedding includes: a cushion layer which is formed with a filament three-dimensional bonded member and which is breathable; a breathable water-repellent layer which is provided on the upper side of the cushion layer and which is breathable and water-repellent; and a breathable water-retentive layer which is provided on the upper side of the breathable water-repellent layer and which is water-retentive and is breathable during water retention.

Abstract: In a device for manufacturing a filament three-dimensional bonded member includes: a molten filament supply device which supplies a plurality of molten filaments; a three-dimensional structure formation device which receives and then cools and solidifies the molten filaments so as to form a filament three-dimensional bonded member; and a controller which controls the molten filament supply device and the three-dimensional structure formation device, a hardness index measurement device is provided which measures the hardness index of the filament three-dimensional bonded member that is brought into a cooled state by the three-dimensional structure formation device, and the controller uses the information of the measurement of the hardness index measurement device that is fed back and thereby performs feedback control on at least one of the molten filament supply device and the three-dimensional structure formation device so as to reduce a variation in the hardness of the formed filament three-dimensional bonde

Abstract: A mattress core material includes a plurality of flat cushion bodies stacked in a thickness direction thereof, including at least a first cushion body which becomes an upper part when using the mattress core material; and a second cushion body which becomes a lower part when using the mattress core material, the first and second cushion bodies including a three-dimensional filaments-linked structure, the first and second cushion bodies each including a high-density upper surface layer having high filament density, formed in an upper surface layer region; a high-density lower surface layer having high filament density, formed in a lower surface layer region; and a low-density elastic layer formed between the high-density upper surface layer and the high-density lower surface layer, the low-density elastic layer being lower in filament density than each high-density surface layer, a intermediate position in the thickness direction of the mattress core material in which the first and second cushion bodies are st

Abstract: A bedding includes: a cushion layer which is formed with a filament three-dimensional bonded member and which is breathable; a breathable water-repellent layer which is provided on the upper side of the cushion layer and which is breathable and water-repellent; and a breathable water-retentive layer which is provided on the upper side of the breathable water-repellent layer and which is water-retentive and is breathable during water retention.

Abstract: A manufacturing apparatus and manufacturing method for manufacturing a three-dimensional filaments-linked structure includes: divided weight information acquisition means which records divided weight information acquired by dividing weight distribution in a height direction of a person in a height axis direction, in correlation with a distance from a top of a head of the person; and three-dimensional linked structure formation means which tangles and fuses filaments of a thermoplastic resin material extruded from an extruder in a three-dimensional net shape, and forms a three-dimensional filaments-linked structure which is long in a product streaming direction, and the three-dimensional linked structure formation means includes filament density control means which controls filament density in the product streaming direction based on the divided weight information.

Abstract: A mattress core material includes a plurality of flat cushion bodies stacked in a thickness direction thereof, including at least a first cushion body which becomes an upper part; and a second cushion body which becomes a lower part, the first and second cushion bodies including a three-dimensional filaments-linked structure, each including a high-density upper surface layer having high filament density; a high-density lower surface layer having high filament density; and a low-density elastic layer, a high-density intermediate layer being formed in an intermediate position in the thickness direction of the mattress core material in which the first and second cushion bodies are stacked as upper and lower parts in the thickness direction, respectively, the high-density intermediate layer having a function of distributing a vertically applied compressive stress, along a curvature of an interface between the first and second cushion bodies in the high-density intermediate layer.

Abstract: In a device for manufacturing a filament three-dimensional bonded member includes: a molten filament supply device which supplies a plurality of molten filaments; a three-dimensional structure formation device which receives and then cools and solidifies the molten filaments so as to form a filament three-dimensional bonded member; and a controller which controls the molten filament supply device and the three-dimensional structure formation device, a hardness index measurement device is provided which measures the hardness index of the filament three-dimensional bonded member that is brought into a cooled state by the three-dimensional structure formation device, and the controller uses the information of the measurement of the hardness index measurement device that is fed back and thereby performs feedback control on at least one of the molten filament supply device and the three-dimensional structure formation device so as to reduce a variation in the hardness of the formed filament three-dimensional bonde

Abstract: A manufacturing apparatus and manufacturing method for manufacturing a three-dimensional filaments-linked structure includes: divided weight information acquisition means which records divided weight information acquired by dividing weight distribution in a height direction of a person in a height axis direction, in correlation with a distance from a top of a head of the person; and three-dimensional linked structure formation means which tangles and fuses filaments of a thermoplastic resin material extruded from an extruder in a three-dimensional net shape, and forms a three-dimensional filaments-linked structure which is long in a product streaming direction, and the three-dimensional linked structure formation means includes filament density control means which controls filament density in the product streaming direction based on the divided weight information.