Textile-reinforced molded hose

Abstract

The present invention relates to a one-part, textile-reinforced molded hose ( 1 ) having at least one bend along its extension in a hose longitudinal direction ( 4 a ), in particular a sealing hose for sealing a screen with respect to a holding frame of a vibrating screen apparatus for separating solids from a mixture of liquid and solids, and to a method for producing the molded hose ( 1 ), a vibrating screen apparatus and a vehicle used in public transportation, each having such a sealing hose, and to the use of the molded hose as such a sealing hose.

1 . A one-part, textile-reinforced molded hose having at least one bend along its extension in a hose longitudinal direction, in particular a sealing hose for sealing a screen with respect to a holding frame of a vibrational screen apparatus for separating solids from a mixture of liquid and solids, in particular for separating solids from drilling fluid, having a hose wall having a tubular reinforcing fabric that has a polymer coating on its external side, the hose wall surrounding a hose inner space that extends in the hose longitudinal direction, the reinforcing fabric comprising warp threads and weft threads, and having a fabric channel that extends in the hose longitudinal direction through the reinforcing fabric and that encloses the hose inner space,
 wherein the fabric channel respectively has, at the bend or bends of the molded hose, a bend adapted to the bend of the molded hose, formed by corresponding weaving of the warp threads and weft threads with one another.   
     
     
         2 . The molded hose according to  claim 1 ,
 wherein the warp threads and weft threads of the reinforcing fabric are woven with one another in such a way that the reinforcing fabric has two one-layered fabric regions as well as a two-layered fabric region having at least two fabric layers that are not connected to one another, so that the fabric channel is formed in each case between the fabric layers.   
     
     
         3 . The molded hose according to  claim 2 ,
 wherein the two fabric layers each have warp threads and weft threads woven with one another, the warp threads and weft threads of the first fabric layer not being woven with the warp threads and weft threads of the second fabric layer.   
     
     
         4 . The molded hose according to  claim 2 ,
 wherein in the one-layered fabric regions, all the warp threads and weft threads of the reinforcing fabric are woven with one another.   
     
     
         5 . The molded hose according to  claim 1 ,
 wherein the molded hose is formed as a flat hose.   
     
     
         6 . The molded hose according to  claim 1 ,
 wherein the hose wall has two hose wall upper sides situated opposite one another, preferably in a hose height direction, and/or has two hose wall longitudinal edges situated opposite one another, preferably in a hose transverse direction.   
     
     
         7 . The molded hose according to  claim 2 ,
 wherein the two fabric layers are configured so as to align with one another in a hose height direction of the molded hose.   
     
     
         8 . The molded hose according to one of the preceding  claim 1 ,
 wherein the polymer coating consists of a polymer matrix in which preferably filler materials, in particular flame-retardant filler materials, are embedded, the polymer matrix preferably being made of an elastomer according to DIN 7724-1993-04.   
     
     
         9 . The molded hose according to  claim 2 ,
 wherein the two-layered fabric region is situated between the two one-layered fabric regions, in particular seen in a hose transverse direction.   
     
     
         10 . The molded hose according to  claim 6 ,
 wherein the warp threads and weft threads of the reinforcing fabric are woven with one another in such a way that the reinforcing fabric has two one-layered fabric regions as well as a two-layered fabric region having at least two fabric layers that are not connected to one another, so that the fabric channel is formed in each case between the fabric layers, and   the two one-layered fabric regions are each situated adjacent to one of the two hose wall longitudinal edges.   
     
     
         11 . The molded hose according to  claim 2 ,
 wherein the two-layered fabric region and the two one-layered fabric regions each have a longitudinal extension parallel to the hose longitudinal direction.   
     
     
         12 . The molded hose according to  claim 6 ,
 wherein the two polymer coatings, seen in a hose transverse direction, extend at least over the entire extension of the reinforcing fabric, and preferably somewhat beyond it, so that the reinforcing fabric is completely embedded in the two polymer coatings, and the two polymer coatings lie directly against one another at the hose wall longitudinal edges and adjacent thereto, and are fixedly connected to one another.   
     
     
         13 . The molded hose according to  claim 1 ,
 wherein the molded hose has a valve that passes through the hose wall for inflating, in particular for bloating, the molded hose, the molded hose preferably having at least one void volume, sealed in fluid-tight fashion, within the hose inner space.   
     
     
         14 . The molded hose according to  claim 2 ,
 wherein the reinforcing fabric is reinforced in the region of the transition from the two-layered to the one-layered regions, i.e. has a higher maximum tensile force FH according to DIN EN ISO 13934-1:2013 and/or a higher elongation at maximum tensile force εH according to DIN EN ISO 13934-1:2013 and/or a higher ratio of tensile force according to DIN EN ISO 13934-1:2013 to elongation according to DIN EN ISO 13934-1:2013 than is the case in a non-reinforced region.   
     
     
         15 . The molded hose according to  claim 1 ,
 wherein the molded hose is made with an annular shape or a U shape or a star shape.   
     
     
         16 . A method for producing a molded hose according to  claim 1 ,
 having the following method steps:   a) production of a basic fabric having at least one fabric channel that has at least one bend that is formed by corresponding weaving of the warp threads and weft threads with one another;   b) cutting out the reinforcing fabric from the basic fabric; and   c) external coating, on both sides, of the reinforcing fabric with a polymer coating.   
     
     
         17 . A vibrating screen apparatus for separating solids from a mixture of liquid and solids, in particular for separating solids from drilling fluid, having at least one vibrationally drivable basket having at least one screen for separating the solids, the screen being held in a holding frame of the basket of the vibrating screen apparatus in clamping fashion by a sealing hose,
 wherein the sealing hose is a molded hose according to  claim 1 .   
     
     
         18 . The vibrating screen apparatus according to  claim 17 ,
 wherein the preferably rectangular and circumferential or U-shaped holding frame has, in cross-section, a C-profile having a lower web wall, an upper web wall, and a center web wall situated between them, and the screen is situated between the upper and lower web wall, the sealing hose being situated between the screen and one of the two web walls in such a way that the screen is clamped, or held in clamping fashion, between the two web walls of the holding frame by the sealing hose.   
     
     
         19 . The vibrating screen apparatus according to  claim 17 ,
 wherein the sealing hose has a pressure of 5 to 7 bar.   
     
     
         20 . The vibrating screen apparatus according to  claim 17 ,
 wherein the sealing hose has holding means for fixing the sealing hose on the holding frame.   
     
     
         21 . A vehicle used in public transportation, preferably a railway vehicle, preferably a high-speed train, having a vehicle body having a door opening and a door that closes the door opening, and having a sealing hose that is situated around the door opening or the door in order to seal the door opening against penetration of draft air and moisture into the vehicle interior,
 wherein the sealing hose is a molded hose according to  claim 1 .   
     
     
         22 . Use of a molded hose according to  claim 1  as a sealing hose between two machine parts of a machine, in particular of a vibrating screen apparatus for separating solids from a mixture of liquid and solids, in particular for separating solids from drilling fluid. 
     
     
         23 . The molded hose according to  claim 13 , wherein the reinforcing fabric is reinforced in the region of the valve, i.e. has a higher maximum tensile force FH according to DIN EN ISO 13934-1:2013 and/or a higher elongation at maximum tensile force εH according to DIN EN ISO 13934-1:2013 and/or a higher ratio of tensile force according to DIN EN ISO 13934-1:2013 to elongation according to DIN EN ISO 13934-1:2013 than is the case in a non-reinforced region. 
     
     
         24 . A vibrating screen apparatus for separating solids from a mixture of liquid and solids, in particular for separating solids from drilling fluid, having at least one vibrationally drivable basket having at least one screen for separating the solids, the screen being held in a holding frame of the basket of the vibrating screen apparatus in clamping fashion by a sealing hose,
 wherein the sealing hose is a molded hose produced according to  claim 16 .   
     
     
         25 . Use of a molded hose produced according to  claim 16  as a sealing hose between two machine parts of a machine, in particular of a vibrating screen apparatus for separating solids from a mixture of liquid and solids, in particular for separating solids from drilling fluid.