| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a seat cushion pad for vehicles and a seat back pad for vehicles having no senses of incongruity in seating comfort at an under-buttock portion and a backrest portion, and at other portions. <P>SOLUTION: In the seat cushion pad for vehicles or the seat back pad, partial or entire portion except the under-buttock portion on a seat surface is formed from a material (b) having a density lower than that of a material (a) forming the under-buttock portion. In the seat cushion pad for vehicles or the seat back pad, (i) load-deflection lines of the material (a) and the material (b) are allowed to coincide nearly, (ii) a sinking volume or a static spring constant is allowed to coincide nearly in a specific reaction force (for example, 50 N, or 100 N) by a test method of JASO-B408 of the material (a) and the material (b), or (iii) reaction forces of the material (a) and the material (b) at a specific deflection amount by a push-pull gauge measurement method are allowed to coincide nearly. <P>COPYRIGHT: (C)2012,JPO&INPIT |
