Molding tool comprises a container containing a granular filling material and a first fluid with a partially flexible fluid-tight wall and an opening for pumping fluid from the container

摘要

Molding tool comprises a container (1) containing a granular filling material (2) and a first fluid with a partially flexible fluid-tight wall and an opening (5) for pumping fluid from the container. The wall consists of two walls (3, 4) in the flexible region. An intermediate space (7) enclosed by the double wall can be filled with a second fluid and evacuated. Preferred Features: The first and second fluid is air.