| 摘要 |
A framework and method of forming a framework is provided for a backrest of a vehicle seat. The framework includes a support member having a first wall portion and a second wall portion. The second wall section is spaced from the first wall portion at a plurality of locations to form a plurality of hollow pocketed sections. An expandable plastic material is disposed in and substantially fills the plurality of pocketed sections. The support member in cooperation with the expandable plastic material provides rigidity to the support member. |
