WO2019204836A1 - Method for producing an endless tube in the form of a ring - Google Patents

Method for producing an endless tube in the form of a ring Download PDF

Info

Publication number
WO2019204836A1
WO2019204836A1 PCT/AT2018/000029 AT2018000029W WO2019204836A1 WO 2019204836 A1 WO2019204836 A1 WO 2019204836A1 AT 2018000029 W AT2018000029 W AT 2018000029W WO 2019204836 A1 WO2019204836 A1 WO 2019204836A1
Authority
WO
WIPO (PCT)
Prior art keywords
insert
tube
hose
tpe
open end
Prior art date
Application number
PCT/AT2018/000029
Other languages
German (de)
French (fr)
Inventor
Christian Lembacher
Akos KERTESZ
Original Assignee
Christian Lembacher
Kertesz Akos
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Christian Lembacher, Kertesz Akos filed Critical Christian Lembacher
Priority to PCT/AT2018/000029 priority Critical patent/WO2019204836A1/en
Publication of WO2019204836A1 publication Critical patent/WO2019204836A1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D23/00—Producing tubular articles
    • B29D23/24—Endless tubes, e.g. inner tubes for pneumatic tyres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/345—Progressively making the joint, e.g. starting from the middle
    • B29C66/3452—Making complete joints by combining partial joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/52—Joining tubular articles, bars or profiled elements
    • B29C66/522—Joining tubular articles
    • B29C66/5221—Joining tubular articles for forming coaxial connections, i.e. the tubular articles to be joined forming a zero angle relative to each other
    • B29C66/52211—Joining tubular articles for forming coaxial connections, i.e. the tubular articles to be joined forming a zero angle relative to each other for making endless tubular articles, e.g. endless inner tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/63—Internally supporting the article during joining
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/914—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux
    • B29C66/9161—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the heat or the thermal flux, i.e. the heat flux
    • B29C66/91641—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the heat or the thermal flux, i.e. the heat flux the heat or the thermal flux being non-constant over time
    • B29C66/91643—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the heat or the thermal flux, i.e. the heat flux the heat or the thermal flux being non-constant over time following a heat-time profile
    • B29C66/91645—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the heat or the thermal flux, i.e. the heat flux the heat or the thermal flux being non-constant over time following a heat-time profile by steps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/92—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools
    • B29C66/924—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools
    • B29C66/9241—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force or the mechanical power
    • B29C66/92441—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force or the mechanical power the pressure, the force or the mechanical power being non-constant over time
    • B29C66/92443—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force or the mechanical power the pressure, the force or the mechanical power being non-constant over time following a pressure-time profile
    • B29C66/92445—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force or the mechanical power the pressure, the force or the mechanical power being non-constant over time following a pressure-time profile by steps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C5/00—Inflatable pneumatic tyres or inner tubes
    • B60C5/02—Inflatable pneumatic tyres or inner tubes having separate inflatable inserts, e.g. with inner tubes; Means for lubricating, venting, preventing relative movement between tyre and inner tube
    • B60C5/04—Shape or construction of inflatable inserts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2793/00—Shaping techniques involving a cutting or machining operation
    • B29C2793/009—Shaping techniques involving a cutting or machining operation after shaping
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/08—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/16—Laser beams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/737—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined
    • B29C66/7375—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined uncured, partially cured or fully cured
    • B29C66/73755—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined uncured, partially cured or fully cured the to-be-joined area of at least one of the parts to be joined being fully cured, i.e. fully cross-linked, fully vulcanized
    • B29C66/73756—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined uncured, partially cured or fully cured the to-be-joined area of at least one of the parts to be joined being fully cured, i.e. fully cross-linked, fully vulcanized the to-be-joined areas of both parts to be joined being fully cured
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8322—Joining or pressing tools reciprocating along one axis
    • B29C66/83221—Joining or pressing tools reciprocating along one axis cooperating reciprocating tools, each tool reciprocating along one axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2023/00—Tubular articles
    • B29L2023/24—Endless tubes, e.g. inner tubes for pneumatic tyres
    • B29L2023/245—Inner tubes

Definitions

  • the invention relates to a method for producing an annularly closed endless tube made of an open, made of plastic hose having a first open end and a second open end.
  • the invention relates to an endless hose, in particular for a hose of a vehicle, such as a bicycle, motorcycle, a motor vehicle or aircraft.
  • a method of the aforementioned type has become known for example from EP2497654B1.
  • free end of the end of the hose are welded or glued together to form a closed ring.
  • this has the disadvantage that in the region of a junction of the free ends of a seam is present, the mechanical properties of which differ from those of the rest of the hose.
  • the seam has a lower mechanical load capacity than adjoining areas of the hose.
  • a method of the type mentioned in the present invention that in a step i) at least one insert is at least partially introduced through the first open end of the tube in this and the second open end of the hose over the insert and the first open End is drawn, wherein a transition into the first open end region of the hose and a transition to the second open end portion of the hose at least partially overlap in the region of the insert, wherein in a Schrit ii) the overlapping areas of the hose in the Field of use are welded or glued together, wherein a step iii) the insert is removed by an introduced into the endless hose opening.
  • the inventive solution enables the production of a hose without a me chanical weakening in a joint area of the hose It also enables the invention to weld due to the use of the insert the hose ends over a large area to one another, to drink without any risk that the inner sides of the tube want unge ⁇ together be welded, which would make the tube unusable, since the insert forms an element through which portions of the inside of the tube in the overlapping region, in which the connection of the ends of the hose takes place, are separated from each other.
  • the opening through which the insert in step oil) is removed is cut into the tube.
  • the cutting of the opening can be done for example by punching.
  • the insert used in step i) has a cross-sectional diameter greater than a clear diameter of the hose in at least one part Step i) is inserted into the tube so that the cross-sectional diameter of the insert after insertion into the tube extends transversely to a longitudinal extent of the tube.
  • the insert used in step i) may have a cross-sectional diameter throughout its length which is less than a clear diameter of the tube, the insert being inserted into the tube in step i) such that the cross-sectional diameter of the insert after insertion into the hose across a lengthwise extension of the hose.
  • the insert may be conical, tubular, mandrel-shaped, pin-shaped or cylindrical and may be either solid or at least have a cavity.
  • the A ⁇ set of plastic and / or wood and / or ceramic and / or rubber and / or metal is gefer Untitled and either is formed dimensionally stable or flexible. Furthermore, it may be advantageous if the material of the insert is made of a different material than the material of the tube and the material of the insert has a higher melting temperature than the material of the tube.
  • the welding may be effected by the application of heat or heat and pressure or by ultrasonic welding or laser welding.
  • the opening can be closed by welding Randbereambaen the opening with each other.
  • a valve is inserted into the opening.
  • This variant of the invention makes it possible to substantially simplify the production of an endless tube, which is intended as a vehicle hose, in particular a bicycle, motorcycle or motor vehicle hose, since the valve can be inserted directly into the already existing opening.
  • the open tube used in step i) consists of a thermoplastic elastomer, in particular TPU, TPE-A, TPE-E, TPE-O, TPE-S, TPE-U, TPE-V or a non-thermoplastic plastic, for example, a silicone elastomer, in particular a LSR (Liquid Silicone Rubber) material, is produced.
  • a thermoplastic elastomer in particular TPU, TPE-A, TPE-E, TPE-O, TPE-S, TPE-U, TPE-V
  • a non-thermoplastic plastic for example, a silicone elastomer, in particular a LSR (Liquid Silicone Rubber) material
  • an endless tube of the type mentioned at the beginning in that it consists of a thermoplastic elastomer, in particular TPU, TPE-A, TPE-E, TPE-O, TPE-S, TPE-U, TPE-V or a non-thermoplastic material, for example a silicone elastomer, in particular an LSR (Liquid Silicone Rubber) material, and produced by a method according to one of claims 1 to 9, wherein the endless tube in the region of a connection point at which the first open End and the second open end are connected to one another, a greater wall thickness, in particular a 1, 1 to 2 times the wall thickness, than in other areas.
  • a thermoplastic elastomer in particular TPU, TPE-A, TPE-E, TPE-O, TPE-S, TPE-U, TPE-V
  • a non-thermoplastic material for example a silicone elastomer, in particular an LSR (Liquid Silicone Rubber) material
  • Figure 1 shows two open ends of a hose with an insert disposed therebetween.
  • FIG. 2 shows the hose of FIG. 1 in a state connected to an endless hose
  • FIG. 3 shows the hose of FIG. 2 during welding in a connection region
  • FIG. 4 shows the hose from FIG. 3, wherein the hose is twisted around the insert after a first welding step
  • FIG. 5 shows a further welding of the hose in the connection area after the hose has been twisted around the insert
  • FIG. 6 shows the hose of FIG. 1 after welding of the connection area
  • FIG. 7 shows the tube of Fig. 6 with a cut out of a welding area opening for removal of the insert.
  • FIG. 8 shows the hose of FIG. 6 with an opening cut out next to a welding area for removing the insert and FIG
  • the EndSosschlauch invention is particularly preferably a hose for a tire of a vehicle, such as a bicycle, motorcycle or a motor vehicle.
  • the tube 1 itself can be produced, for example, by extrusion, blow molding, etc.
  • a hose of long length can be used, which can be wound into a roll, for example. From this hose of great length then the hose 1 can be cut in the desired length.
  • the open tube 1 can be cut to a length which is smaller than the circumference of the annularly closed endless tube.
  • the plastic from which the tube 1 is made is a thermoplastic elastomer, for example based on polyurethane, in particular TPE-U (thermoplastic elastomers based on urethane), TPE-A
  • thermoplastic copolyamides thermoplastic polyester elastomers
  • TPE-0 olefin-based thermoplastic elastomers
  • TPE-S styrene-BSock copolymers
  • TPE-V crosslinked thermoplastic elastomers based on olefins
  • non-thermoplastic plastics such as silicone elastomers can be used, in particular LSR (Liquid Silicone Rubber) materials.
  • the insert 2aa is introduced at least in sections via the first open end 2 of the tube 1 into the latter.
  • the second offe ⁇ ne end 3 of the tube 1 is then pulled on the use 2a and the first open end.
  • a region 4 of the tube 1 which transitions into the first open end 2 and an area 5 of the tube 1 which transitions into the second open end 3 overlap in the region of the insert 2 at least in sections.
  • the insert 2a may be conical, tubular, Dornförmsg, pin-shaped or cylindrical.
  • the insert 2a can either be solid or also have one or more cavities.
  • the insert 2a made of plastic and / or wood and / or ceramic and / or rubber and / or metal is made and either dimensionally stable or flexible.
  • the insert 2 a prevents unintentional connection of sections of the inside of the hose 1 during welding of the preparation surfaces 4 and 5 and, when glued, provides sufficient mechanical support for the regions 4 and 5.
  • the insert 2 a can be flexible, for example be performed while bonding a dimensionally stable use of advantage.
  • the insert 2a may have at least one point of a cross-sectional diameter which is greater than a clear diameter of the tube 1, the insert 2a being inserted into the tube in step i) such that the cross-sectional diameter of the insert after insertion into the tube 1 transverse to a longitudinal extent of the hose 1
  • the insert 2a can also have over its entire length a cross-sectional diameter which is smaller than the inside diameter of the tube 1, wherein the insert 2a in step i) can also be inserted into the tube in such a way that the cross-sectional diameter of the insert after an insertion into the tube 1 transverse to a longitudinal extent of the tube 1 extends.
  • the overlapping regions 4, 5 of the cleft ches are welded together in the region of the insert 2 by means of a welding device 7. Welding can be done by supplying heat or heat and pressure or by ultrasonic welding or laser welding. As an alternative to welding, bonding can also take place.
  • the finished endless hose can have a greater wall thickness, in particular a wall thickness 1, 1 to 2 times, in a connection region defined by the regions 4 and 5 than in other regions.
  • the tube 1 after a first welding to the set A 2 can be rotated and welded as shown in Fig. 5 after turning again.
  • This variant of the invention has the advantage that a simple welding of the regions 4 and 5 can be achieved even with a fixed positio ned welding device.
  • Fig. 6 shows the connecting portion of the endless tube after connecting the preparation che 4 and 5, wherein the insert 2a is still inside the tube.
  • a step iii) the insert 2a is removed by an opening 8 introduced into the endless tube 1, as shown in FIG.
  • the opening 8, through which the insert in step iii) is removed, can be in the
  • Hose 1 to be cut The cutting can be done for example by means of a punching device or a laser.
  • FIG. 7 shows that the opening 6 can be arranged in the region of a weld, while FIG. 8 shows that the opening 6 can also be introduced alongside a weld.
  • the insert 2a can be one or more parts (two or more parts).
  • the use of a multi-part insert 2 has the advantage that it can be more easily removed from the opening 8, since it is divided from the tube 1 before removal.
  • the Ver- Turning a thermoplastic elastomer for the tube 1 allows a particularly simple removal of the insert 2 through the opening 6. Thus, for example, an end portion of the opening 6 is pulled over an end edge of the insert 2 and the insert 2a are removed through the opening 8.
  • the opening 6 can be closed by welding edge regions of the opening 6 together, if an endless tube 1 without opening 6 is desired.
  • a valve can be used in the opening 6, if an endless tube 1 without opening 6 is desired.

Abstract

A method for producing an endless tube closed in the form of a ring from an open tube (1) made of plastic, with a first open end (2) and a second open end (3), wherein in a step i) at least one insert (2a) of a material different from the material of the tube (1) is at least partly inserted via the first open end of the tube (1) into the latter and the second open end (3) of the tube (1) is drawn over the insert (2a) and the first open end (2), wherein a region of the tube (1) that merges into the first open end (2) and a region of the tube (1) that merges into the second open end (3) overlap at least partly in the region of the insert (2), wherein in a step ii) the overlapping regions of the tube in the region of the insert (2) are welded to one another, wherein in a step iii) the insert (2a) is removed through an opening introduced into the endless tube (1).

Description

Verfahren zur Herstellung eines ringförmigen Endlosschlauches  Method for producing an annular endless tube
Die Erfindung betrifft ein Verfahren zur Herstellung eines ringförmig geschlossenen Endlosschlauches aus einem offenen, aus Kunststoff hergestellten Schlauch mit einem ersten offe- nen Ende und einem zweiten offenen Ende. The invention relates to a method for producing an annularly closed endless tube made of an open, made of plastic hose having a first open end and a second open end.
Weiters betrifft die Erfindung einen Endlosschlauch, insbesondere für einen Schlauch eines Fahrzeuges, wie eines Fahrrads, Motorrads, eines Kraftfahrzeuges oder Luftfahrzeuges. Furthermore, the invention relates to an endless hose, in particular for a hose of a vehicle, such as a bicycle, motorcycle, a motor vehicle or aircraft.
Ein Verfahren der eingangs genannten Art ist beispielsweise aus der EP2497654B1 bekannt geworden. Bei dem bekannten Verfahren werden freie stimseitige Enden des Schlauches zur Bildung eines geschlossenen Ringes miteinander verschweißt oder verklebt. Dies hat jedoch den Nachteil, dass im Bereich einer Verbindungsstelle der freien Enden eine Naht vorhanden ist, deren mechanische Eigenschaften von jenen des übrigen Schlauches abweichen. Insbesondere weist die Naht eine geringere mechanische Belastbarkeit auf als daran anschließende Bereiche des Schlauches. A method of the aforementioned type has become known for example from EP2497654B1. In the known method free end of the end of the hose are welded or glued together to form a closed ring. However, this has the disadvantage that in the region of a junction of the free ends of a seam is present, the mechanical properties of which differ from those of the rest of the hose. In particular, the seam has a lower mechanical load capacity than adjoining areas of the hose.
Es ist daher eine Aufgabe der Erfindung, die oben genannten Nachteile des Stands der Technik zu überwinden und einen Kunststoffschlauch zu schaffen, der im Bereich einer Verbindungsstelle seiner freien Enden keine mechanische Schwachstelle aufweist. It is therefore an object of the invention to overcome the above-mentioned disadvantages of the prior art and to provide a plastic tube which has no mechanical weak point in the region of a junction of its free ends.
Diese Aufgabe wird mit einem Verfahren der eingangs genannten Art erfindungsgemäß dadurch gelöst, dass in einem Schritt i) zumindest ein Einsatz zumindest abschnittsweise über das erste offene Ende des Schlauches in diesen eingeführt wird und das zweite offene Ende des Schlauches über den Einsatz und das erste offene Ende gezogen wird, wobei sich ein in das erste offene Ende übergehender Bereich des Schlauches und ein in an das zweite offene Ende übergehender Bereich des Schlauches sich im Bereich des Einsatzes zumindest abschnittsweise überlappen, wobei in einem Schrit ii) die sich überlappenden Bereiche des Schlauches im Bereich des Einsatzes miteinander verschweißt oder verklebt werden, wobei ein einem Schrit iii) der Einsatz durch eine in den Endlosschlauch eingebrachte Öffnung entfernt wird. Die erfindungsgemäße Lösung ermöglicht die Herstellung eines Schlauches ohne eine me chanische Schwächung in einem Stoßbereich des Schlauches Zudem ermöglicht es die Erfindung, auf Grund der Verwendung des Einsatzes die Schlauchenden großflächig miteinander zu verschweißen, ohne Gefahr zu Saufen, dass Innenseiten des Schlauches unge¬ wollt miteinander verschweißt werden, was eine Unbrauchbarkeit des Schlauches zur Folge hätte, da der Einsatz ein Element bildet, durch welches Abschnitte der Innenseite des Schlauches in dem Überlappungsbereich, in dem die Verbindung der Enden des Schlau- ches stattfindet, voneinander getrennt sind. This object is achieved with a method of the type mentioned in the present invention that in a step i) at least one insert is at least partially introduced through the first open end of the tube in this and the second open end of the hose over the insert and the first open End is drawn, wherein a transition into the first open end region of the hose and a transition to the second open end portion of the hose at least partially overlap in the region of the insert, wherein in a Schrit ii) the overlapping areas of the hose in the Field of use are welded or glued together, wherein a step iii) the insert is removed by an introduced into the endless hose opening. The inventive solution enables the production of a hose without a me chanical weakening in a joint area of the hose It also enables the invention to weld due to the use of the insert the hose ends over a large area to one another, to drink without any risk that the inner sides of the tube want unge ¬ together be welded, which would make the tube unusable, since the insert forms an element through which portions of the inside of the tube in the overlapping region, in which the connection of the ends of the hose takes place, are separated from each other.
Bei einer vorteilhaften Variante der Erfindung kann es vorgesehen sein, dass die Öffnung, durch welche der Einsatz in Schritt öl) entnommen wird, in den Schlauch geschnitten wird. Das Schneiden der Öffnung kann beispielsweise durch Stanzen erfolgen. In an advantageous variant of the invention it can be provided that the opening through which the insert in step oil) is removed, is cut into the tube. The cutting of the opening can be done for example by punching.
Um eine gute Fixierung des Einsatzes in dem Schlauch zu ermöglichen, kann es vorgese- hen sein, dass der in Schritt i) eingesetzte Einsatz an zumindest einer Steile einen Querschnittsdurchmesser aufweist, der größer ist, als ein lichter Durchmesser des Schlauches, wobei der Einsatz in Schritt i) so in den Schlauch eingeführt wird, dass der Querschnittsdurchmesser des Einsatzes nach einem Einsetzen in den Schlauch quer zu einer Längserstreckung des Schlauches verläuft. In order to enable a good fixation of the insert in the hose, it may be provided that the insert used in step i) has a cross-sectional diameter greater than a clear diameter of the hose in at least one part Step i) is inserted into the tube so that the cross-sectional diameter of the insert after insertion into the tube extends transversely to a longitudinal extent of the tube.
Alternativ kann der in Schritt i) eingesetzte Einsatz über seine gesamte Länge einen Quer schnittsdurchmesser aufweisen, der kleiner ist als ein lichter Durchmesser des Schlauches, wobei der Einsatz in Schritt i) so in den Schlauch eingeführt wird, dass der Querschnittsdurchmesser des Einsatzes nach einem Einsetzen in den Schlauch quer zu einer Längser- streckung des Schlauches verläuft. Diese Variante der Erfindung ermöglicht es, im Rahmen eines Verbindens der freien Endbereiche des Schlauches zu einem Endlosschlauch dem Schlauch auf einfache Weise gegenüber dem Einsatz zu verdrehen, wodurch der Verbin dungsvorgang vereinfacht wird. Gemäß einer vorteilhaften Variante der Erfindung kann der Einsatz kegelförmig, rohrförmig, dornförmig, stiftförmig oder zylinderförmig ausgebildet sein und entweder massiv sein oder zumindest einen Hohlraum aufweisen. Alternatively, the insert used in step i) may have a cross-sectional diameter throughout its length which is less than a clear diameter of the tube, the insert being inserted into the tube in step i) such that the cross-sectional diameter of the insert after insertion into the hose across a lengthwise extension of the hose. This variant of the invention makes it possible, in the context of connecting the free end portions of the hose to an endless hose to turn the hose in a simple manner relative to the insert, whereby the connec tion process is simplified. According to an advantageous variant of the invention, the insert may be conical, tubular, mandrel-shaped, pin-shaped or cylindrical and may be either solid or at least have a cavity.
Bei einer vorteilhaften Weiterbildung der Erfindung kann es vorgesehen sein, dass der Ein¬ satz aus Kunststoff und/oder Holz und/oder Keramik und/oder Gummi und/oder Metall gefer tigt ist und entweder formstabil oder flexibel ausgebildet ist. Weiters kann es von Vorteil sein, wenn das Material des Einsatzes aus einem anderen Material als das Material des Schlauches gefertigt ist und das Material des Einsatzes eine höhere Schmelztemperatur als das Material des Schlauches aufweist. In an advantageous development of the invention it can be provided that the A ¬ set of plastic and / or wood and / or ceramic and / or rubber and / or metal is gefer Untitled and either is formed dimensionally stable or flexible. Furthermore, it may be advantageous if the material of the insert is made of a different material than the material of the tube and the material of the insert has a higher melting temperature than the material of the tube.
Vorteilhafterweise kann in Schritt ii) das Schweißen durch Zufuhr von Wärme oder Wärme und Druck oder durch Ultraschallschweißen oder Laserschweißen erfolgen. Advantageously, in step ii) the welding may be effected by the application of heat or heat and pressure or by ultrasonic welding or laser welding.
Um einen durchgehend geschlossenen Schlauch ohne Loch zu realisieren, kann die Öffnung durch Verschweißen von Randbereächen der Öffnung miteinander verschlossen werden. To realize a continuous closed tube without a hole, the opening can be closed by welding Randbereächen the opening with each other.
Gemäß einer vorteilhaften Weiterbildung der Erfindung, kann es vorgesehen sein, dass in die Öffnung ein Ventil eingesetzt wird. Diese Variante der Erfindung ermöglicht die Herstellung eines Endlosschlauches, der als Fahrzeugschlauch, insbesondere Fahrrad-, Motorrad- oder Kraftfahrzeugschlauch, gedacht ist, wesentlich zu vereinfachen, da das Ventil direkt in die bereits vorhandene Öffnung eingesetzt werden kann. According to an advantageous development of the invention, it can be provided that a valve is inserted into the opening. This variant of the invention makes it possible to substantially simplify the production of an endless tube, which is intended as a vehicle hose, in particular a bicycle, motorcycle or motor vehicle hose, since the valve can be inserted directly into the already existing opening.
Als besonders vorteilhaft sowohl hinsichtlich der Belastbarkeit des fertigen Endlosschlauches in seinem bestimmungsgemäßen Betrieb als auch hinsichtlich der Entforrnbarkeit des Endlosschlauches von dem Einsatz hat es sich erwiesen, dass der in Schritt i) verwendete offene Schlauch aus einem thermoplastischen Elastomer, insbesondere TPU, TPE-A, TPE- E, TPE-O, TPE-S, TPE-U, TPE-V oder einem nicht thermoplastischen Kunststoff, bei spielsweise einem Silikonelastomer, insbesondere einem LSR (Liquid Silicone Rubber) Material, hergestellt ist. Die oben genannte Aufgabe lässt sich auch mit einem Endlosschlauch der eingangs ge- nannten Art erfindungsgemäß dadurch lösen, dass er aus einem thermoplastischen Elastomer, insbesondere TPU, TPE-A, TPE-E, TPE-O, TPE-S, TPE-U, TPE-V oder einem nicht thermoplastischen Kunststoff, beispielsweise einem Silikonelastomer, insbesondere einem LSR (Liquid Silicone Rubber) Material, und nach einem Verfahren gemäß einem der Ansprüche 1 bis 9 hergestellt ist, wobei der Endlosschlauch im Bereich einer Verbindungsstelle, an welcher das erste offene Ende und das zweite offene Ende miteinander verbunden sind, eine größere Wandstärke, insbesondere eine 1 ,1 bis 2-fache Wandstärke, als in anderen Bereichen aufweist. It has been found to be particularly advantageous both in terms of the load capacity of the finished continuous tube in its intended operation and with regard to the removability of the endless tube from the insert that the open tube used in step i) consists of a thermoplastic elastomer, in particular TPU, TPE-A, TPE-E, TPE-O, TPE-S, TPE-U, TPE-V or a non-thermoplastic plastic, for example, a silicone elastomer, in particular a LSR (Liquid Silicone Rubber) material, is produced. The abovementioned object can also be achieved with an endless tube of the type mentioned at the beginning in that it consists of a thermoplastic elastomer, in particular TPU, TPE-A, TPE-E, TPE-O, TPE-S, TPE-U, TPE-V or a non-thermoplastic material, for example a silicone elastomer, in particular an LSR (Liquid Silicone Rubber) material, and produced by a method according to one of claims 1 to 9, wherein the endless tube in the region of a connection point at which the first open End and the second open end are connected to one another, a greater wall thickness, in particular a 1, 1 to 2 times the wall thickness, than in other areas.
Die Erfindung samt weiteren Vorteilen wird i Folgenden anhand einiger nicht einschränkender Ausführungsbeispiele, welche in den Zeichnungen dargestellt sind näher erläutert. In den Zeichnungen zeigen in schematisch grob vereinfachter Form: The invention together with further advantages will be explained in more detail below with reference to some non-limiting embodiments, which are illustrated in the drawings. In the drawings, in a schematically simplified form:
Fig. 1 zwei offene Enden eines Schlauches mit einem dazwischen angeordneten Einsatz; Figure 1 shows two open ends of a hose with an insert disposed therebetween.
Fig. 2 den Schlauch aus Fig. 1 in einem zu einem Endlosschlauch verbundenen Zustand; FIG. 2 shows the hose of FIG. 1 in a state connected to an endless hose; FIG.
Fig. 3 den Schlauch aus Fig. 2 während eines Schweißens in einem Verbindungsbereich; FIG. 3 shows the hose of FIG. 2 during welding in a connection region; FIG.
Fig. 4 den Schlauch aus Fig. 3, wobei der Schlauch um den Einsatz nach einem ersten Schweißschritt verdreht ist; FIG. 4 shows the hose from FIG. 3, wherein the hose is twisted around the insert after a first welding step; FIG.
Fig. 5 ein nochmaliges Schweißen des Schlauches in dem Verbindungsbereich nach dem Verdrehen des Schlauches um den Einsatz; FIG. 5 shows a further welding of the hose in the connection area after the hose has been twisted around the insert; FIG.
Fig. 6 den Schlauch aus Fig. 1 nach dem Schweißen des Verbindungsbereiches; FIG. 6 shows the hose of FIG. 1 after welding of the connection area; FIG.
Fig. 7 den Schlauch aus Fig. 6 mit einer aus einem Schweißbereich herausgeschnittenen Öffnung zur Entnahme des Einsatzes. Fig. 8 den Schlauch aus Fig. 6 mit einer neben einem Schweißbereich herausgeschnitenen Öffnung zur Entnahme des Einsatzes und Fig. 7 shows the tube of Fig. 6 with a cut out of a welding area opening for removal of the insert. FIG. 8 shows the hose of FIG. 6 with an opening cut out next to a welding area for removing the insert and FIG
Fig 9 den Schlauch aus Fig 7 während des Herausnehmens des Einsatzes aus der Öff¬ nung. 9 shows the tube of Figure 7 during removal of the insert from the Publ ¬ voltage.
Gemäß Fig. 1 kommen bei einem erfindungsgemäßen Verfahren zur Herstellung eines ring förmig geschlossenen Endlosschlauches ein offener, aus Kunststoff hergestellter Schlauch 1 mit einem ersten offenen Ende 2 und einem zweiten offenen Ende 3 sowie ein Einsatz 2a zur Verwendung. Bei dem erfindungsgemäßen EndSosschlauch handelt es sich besonders bevorzugt um einen Schlauch für einen Reifen eines Fahrzeugs, wie beispielsweise eines Fahrrads, Motorrads oder eines Kraftfahrzeugs. 1, in an inventive method for producing a ring-shaped continuous tube an open, made of plastic tube 1 having a first open end 2 and a second open end 3 and an insert 2 a for use. The EndSosschlauch invention is particularly preferably a hose for a tire of a vehicle, such as a bicycle, motorcycle or a motor vehicle.
Der Schlauch 1 selbst kann beispielsweise durch Extrusion, Blasformen etc. hergestellt sein. Als Rohmaterial für den Schlauch 1 kann ein Schlauch großer Länge dienen, der beispielsweise zu einer Rolle aufgewickelt sein kann. Von diesem Schlauch großer Länge kann dann der Schlauch 1 in der gewünschten Länge abschnitten werden. In einem Schritt i) vorhergehenden Schritt kann der offene Schlauch 1 auf eine Länge abgelängt werden, die kleiner als der Umfang des ringförmig geschlossenen Endlosschlauches ist. Es ist jedoch auch möglich, den Schlauch 1 so abzulängen, dass seine Länge dem Umfang des Endlosschlauches entspricht The tube 1 itself can be produced, for example, by extrusion, blow molding, etc. As a raw material for the hose 1, a hose of long length can be used, which can be wound into a roll, for example. From this hose of great length then the hose 1 can be cut in the desired length. In a step i) preceding step, the open tube 1 can be cut to a length which is smaller than the circumference of the annularly closed endless tube. However, it is also possible to cut the tube 1 so that its length corresponds to the circumference of the endless tube
Als besonders günstig hat es sich herausgestellt, wenn der Kunststoff, aus welchem der Schlauch 1 hergestellt ist, ein thermoplastisches Elastomer, beispielsweise auf Polyurethan- basis, insbesondere TPE-U (Thermoplastische Elastomere auf Urethanbasis), TPE-A It has proven particularly favorable if the plastic from which the tube 1 is made is a thermoplastic elastomer, for example based on polyurethane, in particular TPE-U (thermoplastic elastomers based on urethane), TPE-A
(Thermoplastische Copolyamide), TPE-E (Thermoplastische Polyesterelastomere), TPE-0 (Thermoplastische Elastomere auf Ölefinbasis), TPE-S (Styroi-BSockcopoiymere), TPE-V (Vernetzte thermoplastische Elastomere auf Olefinbasis). Alternativ können auch nicht thermoplastische Kunststoffe wie Silikonelastomere verwendet werden, insbesondere LSR (Liquid Silicone Rubber) Materialien. Wie aus Fig. 2 ersichtlich ist wird in einem Schritt i) der Einsatz 2aa zumindest abschnitts weise über das erste offene Ende 2 des Schlauches 1 in diesen eingeführt. Das zweite offe¬ ne Ende 3 des Schlauches 1 wird sodann über den Einsatz 2a und das erste offene Ende 2 gezogen. Ein in das erste offene Ende 2 übergehender Bereich 4 des Schlauches 1 und ein in an das zweite offene Ende 3 übergehender Bereich 5 des Schlauches 1 überlappen sich hierbei im Bereich des Einsatzes 2 zumindest abschnittsweise. (Thermoplastic copolyamides), TPE-E (thermoplastic polyester elastomers), TPE-0 (olefin-based thermoplastic elastomers), TPE-S (styrene-BSock copolymers), TPE-V (crosslinked thermoplastic elastomers based on olefins). Alternatively, non-thermoplastic plastics such as silicone elastomers can be used, in particular LSR (Liquid Silicone Rubber) materials. As can be seen from FIG. 2, in a step i) the insert 2aa is introduced at least in sections via the first open end 2 of the tube 1 into the latter. The second offe ¬ ne end 3 of the tube 1 is then pulled on the use 2a and the first open end. 2 A region 4 of the tube 1 which transitions into the first open end 2 and an area 5 of the tube 1 which transitions into the second open end 3 overlap in the region of the insert 2 at least in sections.
Der Einsatz 2a kann kegelförmig, rohrförmig, dornförmsg, stiftförmig oder zylinderförmig ausgebildet sein. Zudem kann der Einsatz 2a entweder massiv ausgebildet sein oder auch einen oder mehrere Hohlräume aufweisen. Weiters kann der Einsatz 2a aus Kunststoff und/oder Holz und/oder Keramik und/oder Gummi und/oder Metall gefertigt ist und entweder formstabil oder flexibel ausgebildet sein. Der Einsatz 2a verhindert ein ungewolltes Verbin- den von Abschnitten der Innenseite des Schlauches 1 bei einem Verschweißen der Berei che 4 und 5 verhindert und bietet bei einem Verkleben ausreichend mechanische Abstüt zung der Bereiche 4 und 5. Bei einem Verschweißen kann der Einsatz 2a beispielsweise flexibel ausgeführt sein, während bei einem Verkleben ein formstabiler Einsatz von Vorteil sein kann. The insert 2a may be conical, tubular, Dornförmsg, pin-shaped or cylindrical. In addition, the insert 2a can either be solid or also have one or more cavities. Furthermore, the insert 2a made of plastic and / or wood and / or ceramic and / or rubber and / or metal is made and either dimensionally stable or flexible. The insert 2 a prevents unintentional connection of sections of the inside of the hose 1 during welding of the preparation surfaces 4 and 5 and, when glued, provides sufficient mechanical support for the regions 4 and 5. When welded, the insert 2 a can be flexible, for example be performed while bonding a dimensionally stable use of advantage.
Der Einsatz 2a kann an zumindest einer Stelle einen Querschnittsdurchmesser aufweist, der größer ist als ein lichter Durchmesser des Schlauches 1 , wobei der Einsatz 2a in Schritt i) so in den Schlauch eingeführt wird, dass der Querschnittsdurchmesser des Einsatzes nach einem Einsetzen in den Schlauch 1 quer zu einer Längserstreckung des Schlauches 1 ver- The insert 2a may have at least one point of a cross-sectional diameter which is greater than a clear diameter of the tube 1, the insert 2a being inserted into the tube in step i) such that the cross-sectional diameter of the insert after insertion into the tube 1 transverse to a longitudinal extent of the hose 1
Alternativ kann der Einsatz 2a aber auch über seine gesamte Länge einen Querschnittsdurchmesser aufweisen, der kleiner ist als der lichte Durchmesser des Schlauches 1 ist, wobei der Einsatz 2a in Schritt i) ebenfalls so in den Schlauch eingeführt werden kann, dass der Querschnittsdurchmesser des Einsatzes nach einem Einsetzen in den Schlauch 1 quer zu einer Längserstreckung des Schlauches 1 verläuft. Gemäß Fig. 3 werden in einem Schritt ii) die sich überlappenden Bereiche 4, 5 des Schlau ches im Bereich des Einsatzes 2 mittels eines Schweißgerätes 7 miteinander verschweißt. Das Schweißen kann durch Zufuhr von Wärme oder Wärme und Druck oder durch Ultraschallschweißen oder Laserschweißen erfolgt. Alternativ zu einem Verschweißen kann auch ein Verkleben erfolgen. Alternatively, however, the insert 2a can also have over its entire length a cross-sectional diameter which is smaller than the inside diameter of the tube 1, wherein the insert 2a in step i) can also be inserted into the tube in such a way that the cross-sectional diameter of the insert after an insertion into the tube 1 transverse to a longitudinal extent of the tube 1 extends. According to FIG. 3, in a step ii), the overlapping regions 4, 5 of the cleft ches are welded together in the region of the insert 2 by means of a welding device 7. Welding can be done by supplying heat or heat and pressure or by ultrasonic welding or laser welding. As an alternative to welding, bonding can also take place.
Der fertig gestellte Endlosschlauch kann in einem durch die Bereiche 4 und 5 definierten Verbindungsbereich eine größere Wandstärke, insbesondere eine 1 ,1 bis 2-fache Wandstärke, aufweisen als in anderen Bereichen. The finished endless hose can have a greater wall thickness, in particular a wall thickness 1, 1 to 2 times, in a connection region defined by the regions 4 and 5 than in other regions.
Wie in Fig. 4 dargestelit, kann der Schlauch 1 nach einem ersten Schweißen um den Ein satz 2a gedreht werden und wie in Fig. 5 gezeigt nach dem Drehen neuerlich verschweißt werden. Diese Variante der Erfindung hat den Vorteil, dass sich auch mit einem fix positio nierten Schweißgerät ein einfaches Verschweißen der Bereiche 4 und 5 erreichen lässt. As dargestelit in Fig. 4, the tube 1 after a first welding to the set A 2 can be rotated and welded as shown in Fig. 5 after turning again. This variant of the invention has the advantage that a simple welding of the regions 4 and 5 can be achieved even with a fixed positio ned welding device.
Fig. 6 zeigt den Verbindungsbereich des Endlosschlauches nach dem Verbinden der Berei che 4 und 5, wobei sich der Einsatz 2a noch im Inneren des Schlauches befindet. Fig. 6 shows the connecting portion of the endless tube after connecting the preparation che 4 and 5, wherein the insert 2a is still inside the tube.
In einem Schritt iii) wird der Einsatz 2a durch eine in den Endlosschlauch 1 eingebrachte Öffnung 8 entfernt, wie es in Fig. 9 gezeigt ist. In a step iii), the insert 2a is removed by an opening 8 introduced into the endless tube 1, as shown in FIG.
Die Öffnung 8, durch welche der Einsatz in Schritt iii) entnommen wird, kann in den The opening 8, through which the insert in step iii) is removed, can be in the
Schlauch 1 geschnitten werden. Das Schneiden kann beispielsweise mittels einer Stanzvorrichtung oder eines Lasers erfolgen. In Fig 7 ist dargestelit, dass die Öffnung 6 in dem Be- reich einer Schweißstelle angeordnet sein kann, während in Fig. 8 dargestellt ist, dass die Öffnung 6 auch neben einer Schweißstelle eingebracht sein kann. Hose 1 to be cut. The cutting can be done for example by means of a punching device or a laser. FIG. 7 shows that the opening 6 can be arranged in the region of a weld, while FIG. 8 shows that the opening 6 can also be introduced alongside a weld.
Der Einsatz 2a kann ein oder mehrteilig sein (zwei oder mehrere Teile). Die Verwendung eines mehrteiligen Einsatzes 2 hat den Vorteil, dass er leichter aus der Öffnung 8 entnommen werden kann, da er vor der Entnahme aus dem Schlauch 1 geteilt werden. Die Ver- Wendung eines thermoplastischen Elastomers für den Schlauch 1 ermöglicht ein besonders einfaches Entfernen des Einsatzes 2 durch die Öffnung 6. So kann beispielsweise ein Endbereich der Öffnung 6 über eine Stirnkante des Einsatzes 2 gezogen und der Einsatz 2a durch die Öffnung 8 entnommen werden. The insert 2a can be one or more parts (two or more parts). The use of a multi-part insert 2 has the advantage that it can be more easily removed from the opening 8, since it is divided from the tube 1 before removal. The Ver- Turning a thermoplastic elastomer for the tube 1 allows a particularly simple removal of the insert 2 through the opening 6. Thus, for example, an end portion of the opening 6 is pulled over an end edge of the insert 2 and the insert 2a are removed through the opening 8.
Die Öffnung 6 kann durch Verschweißen von Randbereichen der Öffnung 6 miteinander verschlossen werden, falls ein Endlosschlauch 1 ohne Öffnung 6 gewünscht ist. Darüber hinaus kann in die Öffnung 6 auch ein Ventil eingesetzt werden. The opening 6 can be closed by welding edge regions of the opening 6 together, if an endless tube 1 without opening 6 is desired. In addition, in the opening 6, a valve can be used.

Claims

Patentansprüche claims
1. Verfahren zur Herstellung eines ringförmig geschlossenen Endlosschlauches aus ei nem offenen, aus Kunststoff hergestellten Schlauch (1) mit einem ersten offenen Ende (2) und einem zweiten offenen Ende (3), dadurch gekennzeichnet, dass in einem Schritt i) zumindest ein Einsatz (2a) zumindest abschnittsweise über das erste offene Ende (2) des Schlauches (1) in diesen eingeführt wird und das zweite offene Ende (3) des Schlauches (1) über den Einsatz (2a)und das erste offene Ende (2) gezogen wird, wobei sich ein in das erste offene Ende (2) übergehender Bereich (4) des Schlauches (1) und ein in an das zweite offene Ende (3) übergehender Bereich (5) des Schlauches (1) sich im Bereich des Einsatzes (2) zumindest abschnittsweise überlappen, wobei in einem Schritt ü) die sich überlappenden Bereiche (4, 5) des Schlauches im Bereich des Einsatzes (2) miteinander verschweißt oder verklebt werden, wobei ein einem Schritt iii) der Einsatz (2a)durch eine in den Endlosschlauch (1) eingebrachte Öffnung (6) entfernt wird. 1. A process for producing an annularly closed endless tube from egg nem open, made of plastic hose (1) having a first open end (2) and a second open end (3), characterized in that in a step i) at least one insert (2a) is inserted at least in sections over the first open end (2) of the hose (1) and the second open end (3) of the hose (1) is pulled over the insert (2a) and the first open end (2) is, wherein a in the first open end (2) overflowing region (4) of the hose (1) and in the second open end (3) transition region (5) of the hose (1) in the region of the insert ( 2) at least partially overlap, wherein in a step ü) the overlapping regions (4, 5) of the tube in the region of the insert (2) are welded or glued together, wherein a step iii) the insert (2a) by a in the endless hose (1) included avenged opening (6) is removed.
2. Verfahren nach Anspruch 1 , dadurch gekennzeichnet, dass die Öffnung (8), durch welche der Einsatz in Schritt iii) entnommen wird, in den Schlauch (1) geschnitten wird. 2. The method according to claim 1, characterized in that the opening (8) through which the insert is removed in step iii) is cut into the tube (1).
3. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der in Schritt i) eingesetzte Einsatz (2a)an zumindest einer Stelle einen Querschnittsdurchmesser aufweist, der größer ist als ein lichter Durchmesser des Schlauches (1), wobei der Einsatz (2a) in Schritt i) so in den Schlauch eingeführt wird, dass der Ouerschnifis- durchmesser des Einsatzes nach einem Einsetzen in den Schlauch (1) quer zu einer Längserstreckung des Schlauches (1) verläuft. 3. The method according to claim 1 or 2, characterized in that the insert used in step i) (2a) at at least one point has a cross-sectional diameter which is greater than a clear diameter of the hose (1), wherein the insert (2a) in step i) is inserted into the tube such that the diameter of the insert after insertion into the tube (1) runs transversely to a longitudinal extent of the tube (1).
4. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der in Schritt i) eingesetzte Einsatz (2a) über seine gesamte Länge einen Querschnittsdurchmesser aufweist, der kleiner ist als ein lichter Durchmesser des Schlauches (1), wobei der4. The method according to claim 1 or 2, characterized in that the insert used in step i) (2a) over its entire length has a cross-sectional diameter which is smaller than a clear diameter of the hose (1), wherein the
Einsatz (2a)\n Schritt i) so in den Schlauch eingeführt wird, dass der Querschnitts- durchmesser des Einsatzes nach einem Einsetzen in den Schlauch (1 ) quer zu einer Längserstreckung des Schlauches (1) verläuft Insert (2a) \ n step i) into the tube so that the cross-sectional diameter of the insert after insertion into the hose (1) extends transversely to a longitudinal extent of the hose (1)
5 Verfahren nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass der Einsatz (2a) kegelförmig, rohrförmig, dornförmig, stiftförmig oder zylinderförmig ausge bildet ist und entweder massiv ist oder zumindest einen Hohiraum aufweist 5. The method according to any one of claims 1 to 4, characterized in that the insert (2a) is conical, tubular, mandrel-shaped, pin-shaped or cylindrical out forms and is either solid or at least has a hollow space
6. Verfahren nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass der Einsatz aus Kunststoff und/oder Holz und/oder Keramik und/oder Gummi und/ oder Metall gefertigt ist und entweder formstabil oder flexibel ausgebildet ist 6. The method according to any one of claims 1 to 5, characterized in that the insert made of plastic and / or wood and / or ceramic and / or rubber and / or metal is made and either dimensionally stable or flexible
7. Verfahren nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass in 7. The method according to any one of claims 1 to 8, characterized in that in
Schritt ii) das Schweißen durch Zufuhr von Wärme oder Wärme und Druck oder durch Ultraschallschweißen oder Laserschweißen erfolgt.  Step ii) the welding by supplying heat or heat and pressure or by ultrasonic welding or laser welding takes place.
8. Verfahren nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass die Öff nung (6) durch Verschweißen von Randbereichen der Öffnung (8) miteinander ver- schlossen wird oder in die Öffnung (6) ein Ventil eingesetzt wird. 8. The method according to any one of claims 1 to 7, characterized in that the Publ opening (6) by welding edge regions of the opening (8) is closed together or in the opening (6), a valve is used.
9 Verfahren nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass der in Schrit i) verwendete offene Schlauch (2) aus einem thermoplastischen Elastomer, insbesondere TPU, TPE-A, TPE-E, TPE-O, TPE-S, TPE-U, TPE-V oder einem nicht thermoplastischen Kunststoff, beispielsweise einem Silikonelastomer, insbesondere einem LSR (Liquid Silicone Rubber) Material, hergesielft ist. 0, Endlosschlauch, insbesondere für einen Schlauch eines Fahrzeuges, wie eines Fahrrads, Motorrads, eines Kraftfahrzeuges oder Luftfahrzeuges, dadurch gekennzeich net, dass er aus einem thermoplastischen Elastomer, insbesondere TPU, TPE-A, TPE-E, TPE-O, TPE-S, TPE-U, TPE-V oder einem nicht thermoplastischen Kunststoff, beispielsweise einem Silikonelastomer, insbesondere einem LSR (Liquid Silico- ne Rubber) Material, und nach einem Verfahren gemäß einem der Ansprüche 1 bis 9 hergestellt ist, wobei der Endlosschlauch im Bereich einer Verbindungsstelle, an wel cher das erste offene Ende (4) und das zweite offene Ende (5) miteinander verbun- den sind, eine größere Wandstärke, insbesondere eine 1 , 1 bis 2-fache Wandstärke, als in anderen Bereichen aufweist. 9 The method according to any one of claims 1 to 7, characterized in that the used in step i) open tube (2) made of a thermoplastic elastomer, in particular TPU, TPE-A, TPE-E, TPE-O, TPE-S, TPE -U, TPE-V or a non-thermoplastic plastic, for example a silicone elastomer, in particular an LSR (Liquid Silicone Rubber) material, hergesielft. 0 , endless hose, in particular for a hose of a vehicle, such as a bicycle, motorcycle, a motor vehicle or aircraft, characterized in that it consists of a thermoplastic elastomer, in particular TPU, TPE-A, TPE-E, TPE-O, TPE- S, TPE-U, TPE-V or a non-thermoplastic plastic, for example a silicone elastomer, in particular an LSR (Liquid Silica A rubber) material, and according to a method according to one of claims 1 to 9 is produced, wherein the endless tube in the region of a connection point, wel cher the first open end (4) and the second open end (5) are interconnected , a greater wall thickness, in particular a 1, 1 to 2 times the wall thickness, than in other areas.
PCT/AT2018/000029 2018-04-24 2018-04-24 Method for producing an endless tube in the form of a ring WO2019204836A1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022058181A1 (en) * 2020-09-16 2022-03-24 Fränkische Industrial Pipes GmbH & Co. KG Device for controlling the temperature of a component, and method for producing the device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB171508A (en) * 1920-08-26 1921-11-24 Frank Creassey A new or improved process of manufacturing endless tubes from rubber compound or thelike
GB175484A (en) * 1920-12-18 1922-02-23 Werneth Rubber Works Ltd Improvements relating to the vulcanization of the joints of inner tubes for the tyres of motor-cars, motor-cycles and the like
US2512774A (en) * 1948-04-09 1950-06-27 Alvin J Musselman Method of making inner tubes
EP2497654B1 (en) 2009-02-03 2014-09-03 Eclipse International AG Hose system
WO2017201554A1 (en) * 2016-05-24 2017-11-30 Christian Lembacher Method for producing an annularly closed endless tube

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB171508A (en) * 1920-08-26 1921-11-24 Frank Creassey A new or improved process of manufacturing endless tubes from rubber compound or thelike
GB175484A (en) * 1920-12-18 1922-02-23 Werneth Rubber Works Ltd Improvements relating to the vulcanization of the joints of inner tubes for the tyres of motor-cars, motor-cycles and the like
US2512774A (en) * 1948-04-09 1950-06-27 Alvin J Musselman Method of making inner tubes
EP2497654B1 (en) 2009-02-03 2014-09-03 Eclipse International AG Hose system
WO2017201554A1 (en) * 2016-05-24 2017-11-30 Christian Lembacher Method for producing an annularly closed endless tube

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022058181A1 (en) * 2020-09-16 2022-03-24 Fränkische Industrial Pipes GmbH & Co. KG Device for controlling the temperature of a component, and method for producing the device

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