The seat cushion (1) comprises a surface layer part (1a) formed by foaming polyurethane (11). A wiring groove (2) in which a wiring harness (3) is arranged is formed in the surface layer part (1a). The wiring groove (2) has a groove width (W) narrower than the diameter ([phi] 3) of the wire harness (3) and a groove depth (D) deeper than the diameter ([phi] 3) of the wire harness (3). In a method for manufacturing a seat cushion, a molding die having a groove-forming protrusion for forming a wiring groove (2) is used, and a hole portion is formed in a side surface of the groove-forming protrusion. A foamed polyurethane material is supplied to the inside of the molding die, and when the molded article is taken out from the molding die, a molded portion formed in the hole portion is forcibly demolded from the hole portion in which the groove forms the protrusion portion.
座垫(1)包含由发泡聚氨酯(11)构成的表层部(1a)。在表层部(1a)形成有布置配线束(3)的布线槽(2)。布线槽(2)具有比线束(3)的直径(φ3)窄的槽宽(W)和比线束(3)的直径(φ3)深的槽深(D)。在座垫的制造方法中,作为成形模具,使用这样的成形模具:具有用于形成布线槽(2)的槽形成突起部并且在该槽形成突起部的侧面形成有孔部。向所述成形模具的内部供给发泡聚氨酯材料,在从所述成形模具取出成形品时自所述槽形成突起部的所述孔部对形成于该孔部的成形部分进行强制脱模。
SEAT CUSHION AND METHOD FOR MANUFACTURING SEAT CUSHION
座垫及座垫的制造方法
2024-01-26
Patent
Electronic Resource
Chinese
Method of manufacturing seat cushion, such seat cushion and such seat
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