ELASTIC MEMBER MADE OF FOAMED RESIN BEADS, LAMINATED ELASTIC STRUCTURE AND SEAT STRUCTURE

摘要

To achieve further weight reduction of a seat for a vehicle while providing elasticity sufficient as a cushioning member for a seat for a vehicle. An elastic member (10) made of expanded resin beads has a structure where an elastic covering material (10b) having stretching properties is stuck to an outer face of an expanded bead body (10a). Therefore, when the elastic member (10) made of expanded resin beads of the present invention is bent or compressed, the respective beads themselves configuring the expanded bead body (10a) are elastically deformed according to stretching or compressing of the elastic covering material (10b) and since the elastic deformation is not such deformation that a gap between beads of the expanded bead body (10a) largely expands, a crack occurring between beads or permanent deformation does not occur so that bending or compressing is made possible. Accordingly, the elastic member (10) made of expanded resin beads is suitable as a cushioning member utilizing an elastic recovering force in a bending direction and a thickness direction thereof.