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EP-4675144-B1 - CONNECTION DEVICE FOR HOSES, CONDUIT AND METHOD OF PRODUCING A CONDUIT

EP4675144B1EP 4675144 B1EP4675144 B1EP 4675144B1EP-4675144-B1

Inventors

  • AKTEMUR, Veysel
  • CAN, RECEP
  • APTIOGULLARI, Erhan
  • MUCO, Recep
  • DEVECI, Ferruh

Dates

Publication Date
20260513
Application Date
20240704

Claims (14)

  1. Conduit (17), comprising at least one connection device (1) at at least one of its ends, the connection device (1) comprising an attachment section (3) for attachment of the connection device (1) to another device, and a nipple section (2) with a circumferentially shaped sheet material (8) for attachment to the sheath (19) of the conduit (17), wherein the sheet material (8) of the nipple section (2) comprises at least one, preferably a plurality of cut-outs (11), wherein at least part (21) of the sheath (19) extends on the radial inner side of the nipple section (2) of the connection device (1) towards an opening (22) of the attachment section (3) of the connecting device (1), and wherein a part (20) of the sheath (19) of the conduit (17) is arranged on the radial outside (14) of the nipple section (8).
  2. Conduit (17) according to claim 1, characterised in that the parts (20, 21) of the sheath (19) are bonded together by penetrating through the cut-outs (11) in the nipple section (2) of the connection device (1), and joining each other (20, 21).
  3. Conduit (17) according to claim 1 or 2, characterised in that at least one of the cut-outs (11) extends towards the limiting rim (12) of the nipple section (2) that faces the conduit (17) and/or characterised in that at least one of the cut-outs (11) is designed and arranged in a way that it is not fully enclosed by the sheet material (8) of the nipple section (2).
  4. Conduit (17) according to any of the preceding claims, in particular according to claim 3, characterised in that at least one of the cut-outs (11) is U-shaped.
  5. Conduit (17) according to any of the preceding claims, in particular according to claim 3 or 4, characterised in that the nipple section (2) comprises at least one, preferably a plurality of protruding web sections (13) that protrude in the direction of the conduit (17).
  6. Conduit (17) according to any of the preceding claims, characterized in that the nipple section (2) comprises at least one radially protruding fixation means (15).
  7. Conduit (17) according to any of the preceding claims, preferably according to claim 5 or 6, characterised in that it is, at least in parts, essentially rotationally symmetric and/or that it comprises, at least in parts, an n-count symmetry around its lengthwise extent.
  8. Conduit (17) according to any of the preceding claims, characterised in that the attachment section (3) is designed and arranged as a flange device (4), a conduit plug device, a conduit socket device, a male connector device and/or a female connector device and/or characterized in that it is designed for a conduit, preferably for liquidous and/or gaseous substances.
  9. Conduit (17) according to any of the preceding claims, characterized in that the material of the connection device (1) comprises electrically conductive material, preferably metallic material.
  10. Conduit (17) according to any of the preceding claims, characterized in that at least part (21) of the sheath (19) extends on the radial inner side of the nipple section (2) of the connection device (1) beyond the opening (22) at the connecting side of the connecting device (1).
  11. Conduit (17) according to any of the preceding claims, characterised in that the conduit (17) is designed and arranged as an elastic conduit (17), preferably as a hose, and/or characterized in that the sheath (19) of the conduit (17) comprises a rubber material, preferably a fiber reinforced rubber material.
  12. Conduit (17) according to any of the preceding claims, characterized in that the conduit (17) comprises an electrically conductive material, in particular an embedded electrically conductive material, more preferably a metallic material.
  13. Method of producing a conduit (17) according to any of the preceding claims, characterized in that a first, inner part (21) of the sheath (19) of the conduit (17) is produced, a nipple section (2) of the connection device (1) is placed over at least one end section of the conduit (17) on the radial outside of the first part (21) of the sheath (19), and a second part (22) of the sheath (19) of the conduit (17) is placed on the radial outside of at least a part of the connection device (1), preferably at least a part of the nipple section (2) of the connection device (1), and/or the first part (21) of the sheath (19).
  14. Method of producing a conduit (17) according to claim 13, characterized in that the conduit (17) is at least partially produced on a mandrel, preferably on a rotating mandrel.

Description

The invention relates to a connection device for conduit comprising an attachment section for attachment of the connection device to another device. The invention further relates to a conduit, comprising at least one connection device at at least one of its ends. The invention further relates to a method of producing a conduit comprising a connection device. Conduits are used in a wide variety of technical fields to transport material from one place to another. Material can be particularly gaseous material and/or liquidous material. Generally, one can talk about fluids (including fluids were a distinction between the gaseous and liquidous phase cannot be made anymore). Furthermore, it is of course possible that the gas/liquid/fluid may contain solid material to a certain extent (suspension, smoke and the like). However, it is even possible that only solid material is to be transported, where solid material may be transported by gravity, or where solid material may be conveyed in a stream of gas and/or liquid (where the corresponding transport of the gas/liquid is only some sort of a side effect). Regularly, for such conduits, hoses and tubes are used, where the notion of a hose is usually used when the conduit is elastic and/or a bendable, while the notion of a tube (or even pipe) is usually used in case the tube/pipe is not elastic (it is of course acknowledged that essentially all materials are elastic to a certain, minimum extent). Of course, the length of conduits is always limited. Furthermore, at a certain point the conduit has to be connected to a machinery, a tank, a feeding hopper, a storage means or the like. For effectuating such a connection, various designs of connection devices are around. Just to name some examples: flange devices, plugs, sockets or the like are known in the prior art. A certain technical challenge for such connection devices for conduits is the mechanical attachment of the connection device and the conduit to each other. It is clearly understandable that the connection has to sustain sufficiently high mechanical forces and should not fail due to vibration, temperature changes, pressure changes and the like during the use of the arrangement. Further, the cost aspect should always be considered. Another problem arises, when it comes to perishable products or the like. Here, the connection end section poses particular problems, since the changeover from the nipple part of the connection device to the inner surface of the "standard" conduit poses a problem. In particular, small gaps can occur in the transition region between the materials. In such small gaps, however, bacteria or the like can remain, which may pose a health hazard. Similar problems occur when it comes to poisonous or otherwise hazardous and dangerous products, since even a small leftover in the inside of the house can pose a risk. Yet further, in the context of perishable goods or hazardous products, so far, the material of the nipple has to be chosen in a way to be compatible with the respective product. Therefore, frequently comparatively expensive materials have to be chosen, resulting in an accordingly high cost for the connection device. DE 196 22 099 A1 discloses a quick-release coupling with a coolant hose for the first line part and a receiving connection for a second line part. These components have positively engaging closing sectors and sealing sectors. There is a shape stabilising element in the form of an annular stabilising crown. The crown is connected at least partly co-axially to the hose end in its outer jacket. There are at least two locking elements projecting radially outwards, with corresponding locking seats in the connectors, forming the closing sectors. US 2020/166166 A1 suggests a hose that has a body and a mouthpiece connected with the body. The mouthpiece is slidably placed against the body. It is designed for mounting of the end of the hose and it has a thickening. The ending has a circumferential stop placed in the axis of the mouthpiece, whereby the stop has on its circumference a touch surface which is oriented inside, against the thickening on the mouthpiece. The mouthpiece can be sealed by sealing ring against the body, whereby the ring is placed in the sealing zone, or the mouthpiece can be connected with the body by a flexible bellow. During the movement of the mouthpiece outside the touch surface of the stop and the outer surface of the hose in the zone with the thickening draw closer and the hose is held on the mouthpiece by the underpressure between the surface of the stop and the thickening. The increasing pressure in the hose increases the underpressure of the hose on the mouthpiece which increases the sealing effect of the joint. DE 20 2009 009745 U1 relates to a hose connector comprising a hose and a fitting with a tubular end. The end region of the hose is slipped onto the tubular end of the fitting. In order to achieve the situation in which, when the end region of th