| 摘要 |
PROBLEM TO BE SOLVED: To provide a seat cushion body for vehicles with excellent recyclability, having rich cushioning properties when a person seats or lies supine and achieving weight saving.SOLUTION: The seat cushion body for vehicles comprises a synthetic resin foam having a bending deflection amount equal to or larger than 20 mm and a load between 2 and 100 N at the 20 mm bending deflection time, both measured in accordance with a method described in JIS K7221-2: 2006. The seat cushion body includes: a singular planar seat surface on which a body comes into contact when a person seats thereon and that has a plurality of insertion holes disposed at discretionary positions; a seat-surface support body served as a supporting point when the seat surface is deformed by bending in a backward direction, or a singular planar backrest surface on which the body comes into contact in seating; a backrest-surface support body served as a supporting point when the backrest surface is deformed by the bending in the backward direction; and a space part for allowing the bending deformation of the seat surface or the backrest surface.SELECTED DRAWING: Figure 4 |
