| 摘要 |
A method for manufacturing integral elastic supports formed by an upper covering (2), by an intermediate filler (3) and by a semirigid shell (4) entails the use of a mold with a hollow lower part, a flat upper part, and at least one intermediate plate. The method includes the following steps: opening of the mold; deposition on the lower part of a covering sheet with an excess border; securing of the excess border by means of the locking plate; deformation of the covering sheet in vacuum; pouring of a first layer of a gel compound in the fluid state; coupling of a semirigid shell to the upper part of the mold; pouring of a second layer of an expandable resin in the fluid state; closing of the mold; opening of the mold and removal of the finished support. The expandable resin is poured onto the gel compound after a period of time that is sufficient to allow the compound to assume a consistency and shape of its own but is shorter than the full polymerization time so as to allow it to react at least partially with the resin.
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