Passenger-seat-cushion-member manufacturing method, passenger-seat cushion member, filling-body manufacturing method, and filling body

A passenger-seat cushion member comprising a seat body, and a filling body that fills a hole part formed at the seat body, wherein

• the seat body includes a seat body side coupling part including mechanical coupling means that couples to the filling body,
• the filling body includes a body part including a porous structural body made of flexible resin or rubber, and a filling body side coupling part disposed adjacent to the body part and including mechanical coupling means that couples to the seat body side coupling part, at least part of the filling body side coupling part including the porous structural body,
• a density of an outer edge part including the porous structural body in the filling body side coupling part is higher than a density of the body part, where the density is a mass per unit volume in the porous structural body,
• the filling body side coupling part is coupled to the seat body side coupling part, and
• the porous structural body is shaped by using a 3D printer.

A method of manufacturing a filling body that fills a hole part formed at a seat body in a passenger-seat cushion member comprising the seat body and the filling body,

• the filling body including a body part including a porous structural body made of flexible resin or rubber, and a filling body side coupling part disposed adjacent to the body part and including mechanical coupling means that couples to the seat body, at least part of the filling body side coupling part including the porous structural body,
• a density of an outer edge part including the porous structural body in the filling body side coupling part being higher than a density of the body part, where the density is a mass per unit volume in the porous structural body,
• the manufacturing method comprising:
• a step of shaping the porous structural body by using a 3D printer.