Method of producing reinforced, formed fabrics
First Claim
1. A method of manufacturing shaped and reinforced fabrics, characterised by the fact that it consists of manufacturing a fabric consisting of a membrane (34) which encases reinforcing elements continuously in alternation in a press which comprises an upper chamber (1) whose lower part is constituted by a flexible element (4) and a lower chamber (14) whose upper part is constituted by a flexible element (17), the upper chamber (1) comprising a shaping bar (10) whose shape can be adjusted by adjustment rods (7) and whose adjustment shape causes the elastic deformation in three dimensions of the flexible elements (4 and 17) and consequently of the membrane and the reinforcing elements which are in the press, into an active position in which the bar has a shape and into an inactive position in which the shaping bar is inactive and causes no deformation of the membrane and the reinforcing elements which are pressed flat, by the fact that the portions of membrane and reinforcing elements are prepared before pressing on a conveyor belt which is put on a preparation table (25) which then places these portions under the press with pressure and heating, and by the fact that the portions of membrane and reinforcing elements are overlapped during the preparation so as to constitute at the output of the press a homogeneous fabric which comprises flat portions and portions shaped in three dimensions according to multiple shapes determined by the adjustment of the shaping bar during the pressing of each portion of membrane and reinforcing elements whose length is determined by the width of the press and of the preparation table.
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Accused Products
Abstract
The invention relates to a method of producing reinforced, formed fabrics, consisting in producing a continuous fabric alternated with a membrane (34) containing embedded reinforcing elements, which is prepared in overlapping portions on a conveyor belt (29) which passes over a preparation table (25). The membrane (34) and the reinforcing elements are then positioned under a press consisting of an upper air-filled chamber (1), the lower pait thereof comprising a flexible element (4), and a lower water-filled chamber (14), the upper part thereof comprising a flexible element (17). According to the invention, a forming bar (10) is adjustably mounted in the upper chamber (1). When the aforementioned forming bar (10) is adjusted to adopt a particular shape, the different flexible elements can deform at the forming bar and the membrane and the reinforcing elements are hot pressed with a portion corresponding to the forming bar having a threedimensional shape, thereby defining the form of the fabric produced.
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Citations
9 Claims
- 1. A method of manufacturing shaped and reinforced fabrics, characterised by the fact that it consists of manufacturing a fabric consisting of a membrane (34) which encases reinforcing elements continuously in alternation in a press which comprises an upper chamber (1) whose lower part is constituted by a flexible element (4) and a lower chamber (14) whose upper part is constituted by a flexible element (17), the upper chamber (1) comprising a shaping bar (10) whose shape can be adjusted by adjustment rods (7) and whose adjustment shape causes the elastic deformation in three dimensions of the flexible elements (4 and 17) and consequently of the membrane and the reinforcing elements which are in the press, into an active position in which the bar has a shape and into an inactive position in which the shaping bar is inactive and causes no deformation of the membrane and the reinforcing elements which are pressed flat, by the fact that the portions of membrane and reinforcing elements are prepared before pressing on a conveyor belt which is put on a preparation table (25) which then places these portions under the press with pressure and heating, and by the fact that the portions of membrane and reinforcing elements are overlapped during the preparation so as to constitute at the output of the press a homogeneous fabric which comprises flat portions and portions shaped in three dimensions according to multiple shapes determined by the adjustment of the shaping bar during the pressing of each portion of membrane and reinforcing elements whose length is determined by the width of the press and of the preparation table.
Specification