초록 ▼

A process and arrangement for introducing a material such as a foam into automobile body cavities for at least one of noise insulation or increased rigidity. The cavities may be provided with open spaces or be adapted to only be partially filled with the foam. A bag is initially introduced into the

A process and arrangement for introducing a material such as a foam into automobile body cavities for at least one of noise insulation or increased rigidity. The cavities may be provided with open spaces or be adapted to only be partially filled with the foam. A bag is initially introduced into the cavity with the bag being provided with a filler opening. The volume capacity of the bag corresponds approximately to the volume of the automobile body cavity or a portion of the body cavity which is to be filled with the foam. A mixture of expandable components is introduced into the bag and, following an expansion reaction or a setting, the foam fully fills the bag.

대표청구항 ▼

A process for introducing a material, comprising a mixture of expandable components which form a resin foam, into a body cavity, wherein said body cavity is defined by a body having openings therein, comprising the steps of: (a) providing a bag having a predetermined volume, corresponding to an amou

A process for introducing a material, comprising a mixture of expandable components which form a resin foam, into a body cavity, wherein said body cavity is defined by a body having openings therein, comprising the steps of: (a) providing a bag having a predetermined volume, corresponding to an amount of the body cavity to be filled with the resin foam, and a filler opening means, said bag being in a non-filled condition; (b) introducing the bag in the non-filled condition into said body cavity; and (c) temporarily filling the bag with a fluid prior to the introduction of said material into the bag, whereby the bag assumes a proper initial position for introducing said material, by inflation, and obstacles to the flow of the subsequently introduced material in the bag is alleviated; and (d) introducing said material into the bag through the filler opening means, whereby said bag prevents said material from leaking out of said openings in the body prior to the foaming of said material.