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 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: 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: 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