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DE10164367C1 - Device for holding elastic sleeve open while it is fitted over cables comprises spiral-shaped thermoplastic profile whose windings are bonded together in some areas, in which thermoplastic is crosslinked - Google Patents

Device for holding elastic sleeve open while it is fitted over cables comprises spiral-shaped thermoplastic profile whose windings are bonded together in some areas, in which thermoplastic is crosslinked

Info

Publication number
DE10164367C1
DE10164367C1 DE10164367A DE10164367A DE10164367C1 DE 10164367 C1 DE10164367 C1 DE 10164367C1 DE 10164367 A DE10164367 A DE 10164367A DE 10164367 A DE10164367 A DE 10164367A DE 10164367 C1 DE10164367 C1 DE 10164367C1
Authority
DE
Germany
Prior art keywords
profile
windings
elastic sleeve
thermoplastic
thermoplastically processable
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
DE10164367A
Other languages
German (de)
Inventor
Udo Meinel
Herbert Roedel
Michael Schoebel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rehau Automotive SE and Co KG
Original Assignee
Rehau AG and Co
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 Rehau AG and Co filed Critical Rehau AG and Co
Priority to DE10164367A priority Critical patent/DE10164367C1/en
Application granted granted Critical
Publication of DE10164367C1 publication Critical patent/DE10164367C1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/56—Winding and joining, e.g. winding spirally
    • B29C53/58—Winding and joining, e.g. winding spirally helically
    • B29C53/78—Winding and joining, e.g. winding spirally helically using profiled sheets or strips
    • 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
    • B29C61/00—Shaping by liberation of internal stresses; Making preforms having internal stresses; Apparatus therefor
    • B29C61/06—Making preforms having internal stresses, e.g. plastic memory
    • B29C61/0608—Making preforms having internal stresses, e.g. plastic memory characterised by the configuration or structure of the preforms
    • B29C61/065—Preforms held in a stressed condition by means of a removable support; Supports therefor
    • 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
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • 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
    • B29C65/76—Making non-permanent or releasable 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
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/13—Single flanged joints; Fin-type joints; Single hem joints; Edge joints; Interpenetrating fingered joints; Other specific particular designs of joint cross-sections not provided for in groups B29C66/11 - B29C66/12
    • B29C66/137—Beaded-edge joints or bead seals
    • 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
    • B29C66/5227—Joining tubular articles for forming multi-tubular articles by longitudinally joining elementary tubular articles wall-to-wall (e.g. joining the wall of a first tubular article to the wall of a second tubular article) or for forming multilayer tubular articles
    • 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
    • B29C66/61—Joining from or joining on the inside
    • 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
    • B29C66/73753—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 partially cured, i.e. partially cross-linked, partially vulcanized
    • B29C66/73754—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 partially cured, i.e. partially cross-linked, partially vulcanized the to-be-joined areas of both parts to be joined being partially 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
    • B29C66/70—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
    • B29C66/739—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 material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7392—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 material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
    • B29C66/73921—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 material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
    • H02G1/14—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for joining or terminating cables
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G15/00—Cable fittings
    • H02G15/08—Cable junctions
    • H02G15/18—Cable junctions protected by sleeves, e.g. for communication cable
    • H02G15/182—Cable junctions protected by sleeves, e.g. for communication cable held in expanded condition in radial direction prior to installation
    • H02G15/1826—Cable junctions protected by sleeves, e.g. for communication cable held in expanded condition in radial direction prior to installation on a removable hollow core, e.g. a tube
    • H02G15/1833—Cable junctions protected by sleeves, e.g. for communication cable held in expanded condition in radial direction prior to installation on a removable hollow core, e.g. a tube formed of helically wound strip with adjacent windings, which are removable by applying a pulling force to a strip end
    • 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
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
    • 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
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/16—Cooling
    • 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
    • B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/56—Winding and joining, e.g. winding spirally
    • B29C53/58—Winding and joining, e.g. winding spirally helically
    • B29C53/60—Winding and joining, e.g. winding spirally helically using internal forming surfaces, e.g. mandrels
    • 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
    • B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/56—Winding and joining, e.g. winding spirally
    • B29C53/58—Winding and joining, e.g. winding spirally helically
    • B29C53/60—Winding and joining, e.g. winding spirally helically using internal forming surfaces, e.g. mandrels
    • B29C53/62—Winding and joining, e.g. winding spirally helically using internal forming surfaces, e.g. mandrels rotatable about the winding axis
    • 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
    • B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/56—Winding and joining, e.g. winding spirally
    • B29C53/58—Winding and joining, e.g. winding spirally helically
    • B29C53/60—Winding and joining, e.g. winding spirally helically using internal forming surfaces, e.g. mandrels
    • B29C53/62—Winding and joining, e.g. winding spirally helically using internal forming surfaces, e.g. mandrels rotatable about the winding axis
    • B29C53/64—Winding and joining, e.g. winding spirally helically using internal forming surfaces, e.g. mandrels rotatable about the winding axis and moving axially
    • 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
    • B29C66/739—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 material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7394—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 material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoset
    • B29C66/73941—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 material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoset characterised by the materials of both parts being thermosets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2101/00—Use of unspecified macromolecular compounds as moulding material
    • B29K2101/12—Thermoplastic materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/24—Condition, form or state of moulded material or of the material to be shaped crosslinked or vulcanised
    • B29K2105/243—Partially cured
    • 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
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    • 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
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    • B29L2023/22—Tubes or pipes, i.e. rigid
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B29L2024/00—Articles with hollow walls
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B29L2024/006—Articles with hollow walls multi-channelled
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B29L2031/00—Other particular articles
    • B29L2031/001—Profiled members, e.g. beams, sections
    • B29L2031/003—Profiled members, e.g. beams, sections having a profiled transverse cross-section

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

Device for holding an elastic sleeve (2) open while it is fitted over a group of cables comprises a spiral-shaped thermoplastic profile. The windings (3) of this are bonded together in some areas (4) and the thermoplastic is cross-linked in these areas. An Independent claim is included for a method for making the device comprising: (a) extruding a profile from a thermoplastic; (b) at least partially crosslinking the profile; (c) winding it on to a shaft to form a spiral; (d) heating the windings to their softening point, cooling and removing the spiral.

Description

Die Erfindung betrifft Vorrichtung, um eine elastische Muffe in einem expandierten Zustand zu halten, um längliche, vorzugsweise zylindrische Elemente, wie elektrische Kabelverbindungen und dergleichen zu bedecken, umfassend ein Profil, das spiral­ förmig in nebeneinander liegenden Wicklungen angeordnet ist, wobei es eine zylin­ drische röhrenförmige Form einnimmt, dass die nebeneinander liegenden Wicklun­ gen in wenigstens einem Bereich stoffschlüssig miteinander verbunden sind und wo­ bei das Profil aus einem thermoplastisch verarbeitbaren Werkstoff besteht.The invention relates to an elastic sleeve in an expanded device State to keep elongated, preferably cylindrical elements, such as electrical Cover cable connections and the like, comprising a profile, the spiral is arranged in the form of adjacent windings, it being a cylin dri tubular shape that the side by side winding conditions are cohesively connected to one another in at least one area and where the profile consists of a thermoplastic material.

Um längliche, vorzugsweise zylindrische Elemente zu ummanteln, wie elektrische Kabelverbindungen, Verbindungen von Telekommunikationskabeln und dergleichen, sind elastische Muffen bekannt, die als selbst zusammenziehend oder kalt zusam­ menziehend im Gegensatz zu Muffen anderer Art, die als warm zusammenziehend bezeichnet werden. Diese Muffen umfassen eine elastische röhrenförmige Struktur, in der alle wesentlichen funktionalen Elemente umfasst sind, die für die besondere An­ wendung nötig sind, die vor der eigentlichen Anwendung in einem gedehnten Zu­ stand gehalten wird, um die Verbindungs- und Kontrolltätigkeiten der Kabelverbin­ dungen zu realisieren, die nach dieser Tätigkeit bedeckt werden sollen, in dem sich die Muffe nach der Anwendung elastisch auf eine mehr oder weniger zwangsweise Art anpasst.To encase elongated, preferably cylindrical elements, such as electrical Cable connections, connections of telecommunication cables and the like, elastic sleeves are known which contract as self-contracting or cold pulling in contrast to other types of sleeves, which pull together as warm be designated. These sleeves include an elastic tubular structure, in which includes all the essential functional elements necessary for the special needs application are necessary before the actual application in a stretched condition is maintained to the connection and control activities of the Kabelverbin realizing what should be covered after this activity, in which the sleeve after application elastic to a more or less forced Adapts.

Um die Muffe in einem expandierten Zustand zu halten, wird ein röhrenförmiges Stützteil verwendet, auf das die Muffe in ihrem elastisch expandierten Zustand aufge­ bracht ist. Das Stützteil wird nach Abschluss der Montage und Kontrolltätigkeiten an der Verbindungsstelle entfernt, wodurch die elastische Kontraktion der Muffe realisiert wird, um die Verbindungsstelle allumfassend zu bedecken und zu verschließen.To keep the sleeve in an expanded state, it becomes a tubular one Support part used on the sleeve in its elastically expanded state is brought. The support part is on after completion of assembly and inspection activities the junction removed, which realizes the elastic contraction of the sleeve to completely cover and seal the junction.

Im Stand der Technik sind verschiedene Arten derartiger Stützteile bekannt, wobei ein weit verbreiteter Typ derjenige ist, in dem das röhrenförmige zylindrische Stützteil aus einem Band besteht, das spiralförmig in nebeneinander liegenden Wicklungen gewunden ist, die miteinander verbunden sind. Das Entfernen dieses Stützteils wird durch den progressiven Abbau des Stützteiles an sich realisiert, in dem das Band durch die Innenseite des röhrenförmigen zylindrischen Stützteiles zurückgezogen wird, so dass die Wicklungen progressiv entwunden werden. Sind alle nebeneinander liegenden Wicklungen des röhrenförmigen zylindrischen Stützteiles entwunden, er­ folgt eine Kontraktion der elastischen Muffe vom expandierten Zustand in die Origi­ nalform, so dass die Verbindung der vorzugsweise länglichen zylindrischen Elemente allumfassend realisiert ist.Various types of such support parts are known in the prior art, wherein a common type is the one in which the tubular cylindrical support member  consists of a band that spirally in adjacent windings that are connected to each other. Removing this support member will realized by the progressive dismantling of the support part in which the belt retracted through the inside of the tubular cylindrical support member is so that the windings are progressively unwound. Are all next to each other wound windings of the tubular cylindrical support member, he there follows a contraction of the elastic sleeve from the expanded state into the origi nalform, so that the connection of the preferably elongated cylindrical elements is fully implemented.

Aus der EP 0 500 216 ist eine gattungsgemäße Vorrichtung bekannt. Diese besteht aus einem entfernbaren Kern für eine schrumpfbare röhrenförmige Umkleidung, die eine röhrenförmige Wand umfasst, die eine geschwächte Linie in einer Helixform aufweist. Die röhrenförmige Wand ist aus einer Vielzahl von helixförmig gewickelten, überlappenden, laminierten Schichten aus einem kontinuierlichen Netz geformt. Eine Laminierverbindung zwischen den einzelnen Schichten des Netzes wird mit Hilfe ei­ ner Druckwalze gebildet, während die helixförmige geschwächte Linie mit einer Mes­ serklinge oder alternativ über eine, eine Perforation einbringende, Vorrichtung in Längsrichtung in dem Netz als Sollbruchstelle beaufschlagt ist. Die Herstellung derar­ tiger Stützteile als Formteile wird im Stand der Technik durch das Extrusionsblasver­ fahren umgesetzt, wobei in einem weiteren Arbeitsgang mit Hilfe einer zusätzlichen Vorrichtung eine radial verlaufende Kerbung bzw. Perforation eingebracht werden muss.A generic device is known from EP 0 500 216. This exists from a removable core for a shrinkable tubular casing that a tubular wall that includes a weakened line in a helical shape having. The tubular wall is made up of a large number of helically wound, overlapping, laminated layers formed from a continuous network. A Laminating connection between the individual layers of the network is made with the help of an egg ner pressure roller formed, while the helical weakened line with a Mes blade or alternatively via a device that introduces a perforation in Longitudinal direction in the network is acted as a predetermined breaking point. The manufacture of such tiger support parts as molded parts is in the prior art by the extrusion blow molding drive implemented, in a further operation with the help of an additional A radially extending notch or perforation can be introduced got to.

Ein derartiger Arbeitsgang gestaltet sich recht aufwändig und kostenintensiv, wobei derart hergestellte Stützteile bei dem progressiven Abbau der Wicklungen Probleme bereiten derart, dass das Band wegen zu hoher Bindungskräfte bzw. schlechten Soll­ bruchstellen zwischen den nebeneinander liegenden Wicklungen abreißt, was dazu führt, dass die Verbindung über ein neues Stützteil mit einer neuen Muffe realisiert werden muss.Such an operation is quite complex and costly, whereby thus produced support parts with the progressive dismantling of the windings problems Prepare in such a way that the tape is due to excessive binding forces or bad target breaks between the side-by-side windings, what to do leads to the connection being realized via a new support part with a new sleeve must become.

Aus der WO 99/08355 A1 ist eine weitere gattungsgemäße Vorrichtung bekannt, um eine elastische Muffe in einem expandierten Zustand zu halten, um beispielsweise längliche, vorzugsweise zylindrische Elemente, wie elektrische Kabelverbindungen und dergleichen zu bedecken, umfassend ein Profil, das spiralförmig in nebeneinan­ der liegenden Wicklungen angeordnet ist, wobei es eine zylindrische rohrförmige Form einnimmt und wobei die nebeneinander liegenden Wicklungen in wenigstens einem Bereich stoffschlüssig miteinander verbunden sind und dass das Profil aus einem thermoplastisch verarbeitbaren Werkstoff besteht.Another generic device is known from WO 99/08355 A1 to keep an elastic sleeve in an expanded state, for example  elongated, preferably cylindrical elements, such as electrical cable connections and the like, comprising a profile that spirally in side by side the lying windings is arranged, being a cylindrical tubular Takes shape and the adjacent windings in at least an area are integrally connected and that the profile a thermoplastic material.

Aus der DE 38 23 817 C1 ist ein Verfahren zum Verbinden von Formkörpern, Profilen und dergleichen aus vernetzten, teilvernetzten bzw. ultrahochmolekularen polymeren Materialien bekannt. Dabei werden die Fügeflächen der Formkörper/Profile durch Wärmezuführung von außen bis zum Schmelzpunkt der kristallinen Polymerbe­ standteile erhitzt. Unmittelbar danach wird auf die aufgeschmolzenen Fügeflächen eine mit den Basispolymeren verträgliche Polymerbeschichtung aufgebracht. Danach werden die beschichteten Fügeflächen der Formkörper/Profile durch Wärmezufüh­ rung von außen aufgeschmolzen und unter Anwendung von Pressdruck miteinander verschweißt.DE 38 23 817 C1 describes a method for connecting shaped bodies and profiles and the like from cross-linked, partially cross-linked or ultra-high molecular weight polymers Known materials. The joining surfaces of the shaped bodies / profiles are thereby Heat input from outside to the melting point of the crystalline polymer components heated. Immediately afterwards, the melted joint surfaces are applied applied a polymer coating compatible with the base polymers. After that the coated joining surfaces of the moldings / profiles by heat Melted from the outside and using pressure with each other welded.

Weiterhin sind aus der EP 0 735 639 A1 Stützteile bekannt, die aus einem metalli­ schen Werkstoff bestehen und mit einer Kunststoffumhüllung versehen sind. Bei die­ sen Stützteilen wird nachteilig gesehen, dass neben dem erhöhten Kostenaufwand in der Herstellung des Bandes und auch des Stützteiles sehr hohe Kräfte erforderlich sind, um das Stützteil aus der im expandierten Zustand gehaltenen elastischen Muffe progressiv zu entfernen.Furthermore, support parts are known from EP 0 735 639 A1, which are made of a metal material and are provided with a plastic covering. At the Sen support parts is seen disadvantageously that in addition to the increased cost in the production of the tape and the support member very high forces required are to the support member from the elastic sleeve held in the expanded state to remove progressively.

Des Weiteren ist aus der DE 39 43 296 C2 eine radial schrumpfbare, zylindrische Muffenanordnung zum Einhüllen einer Verbindung oder das Ende eines Elektroka­ bels bekannt, wobei diese Muffe aus weichem bzw. dauerelastischem Werkstoff be­ stehende Schichten aufweist und von einem entfernbaren mechanischen Stützmittel, vorzugsweise Stützwendel, im radial ausgedehnten Zustand gehalten ist. Die Schichten der Muffe sind durch aufeinanderfolgendes Spritzgießen miteinander ver­ bunden und nach dem Entfernen der inneren Stützvorrichtung radial auf die Verbin­ dung oder das Ende des Elektrokabels aufschrumpfbar.Furthermore, DE 39 43 296 C2 is a radially shrinkable, cylindrical one Sleeve assembly for wrapping a connection or the end of an Elektroka bels known, this sleeve be made of soft or permanently elastic material has standing layers and a removable mechanical support means, preferably helix, is held in the radially expanded state. The Layers of the sleeve are joined together by successive injection molding bound and after removing the inner support device radially on the connector the end or the end of the electrical cable.

Hier setzt die Erfindung ein, die es sich zur Aufgabe gestellt hat, die Nachteile des bekannten Standes der Technik zu überwinden und eine Vorrichtung aufzuzeigen, die eine elastische Muffe im expandierten Zustand über einen langen Zustand hält, welche kostengünstig und wirtschaftlich herstellbar ist, welche einen einfachen geo­ metrischen Aufbau aufweist und welche leicht und ohne hohen Kraftaufwand aus der im expandierten Zustand gehaltenen elastischen Muffe entfernbar ist.This is where the invention, which has set itself the task, the disadvantages of to overcome known prior art and to show a device, which holds an elastic sleeve in the expanded state over a long state, which is inexpensive and economical to manufacture, which is a simple geo has metric structure and which easily and without great effort from the elastic sleeve held in the expanded state is removable.

Erfindungsgemäß wird dies durch die kennzeichnenden Merkmale des Anspruches 1 realisiert. Weitere Ausgestaltungsformen der erfindungsgemäßen Vorrichtung sind in den Unteransprüchen beschrieben.According to the invention, this is achieved by the characterizing features of claim 1 realized. Further embodiments of the device according to the invention are shown in described the subclaims.

Die erfindungsgemäße Vorrichtung wird entsprechend den Ansprüchen 12 bis 14 hergestellt.The device according to the invention is in accordance with claims 12 to 14 manufactured.

Die erfindungsgemäße Vorrichtung zeichnet sich dadurch aus, dass der thermopla­ stisch verarbeitbare Werkstoff in den Bereichen der nebeneinander angeordneten Wicklungen wenigstens teilweise vernetzt ist.The device according to the invention is characterized in that the thermopla stisch processable material in the areas of the side by side Windings is at least partially networked.

Es wurde überraschend gefunden, dass durch die Verwendung eines wenigstens teilweise vernetzten Werkstoffes, der aber trotzdem noch thermoplastisch verarbeit­ bar ist, die nebeneinander angeordneten Wicklungen der Vorrichtung stoffschlüssig miteinander verbunden sind, das aber auf Grund des Vernetzungsgrades des teilwei­ se vernetzten thermoplastischen Werkstoffes hier eine bewusst steuerbare werk­ stoffseitige Schwachstelle auftritt, die eine Trennung dieser stoffschlüssig miteinander verbundenen, nebeneinander angeordneten Wicklungen der erfindungsgemäßen Vorrichtung im Einsatzfall jederzeit problemlos ermöglichen.It has surprisingly been found that by using at least one partially cross-linked material, but still processed thermoplastic bar, the adjacent windings of the device are material are connected to each other, but due to the degree of networking of the part se networked thermoplastic material here is a consciously controllable work Vulnerability occurs on the fabric side, which separates them cohesively connected, side by side windings of the invention Enable the device at any time without any problems.

Es hat sich herausgestellt, dass der thermoplastisch verarbeitbare Werkstoff des Profiles einen Vernetzungsgrad von 20-80% aufweist, vorzugsweise 30-65%. Hierdurch ist es erstmals möglich, eine Dimensionierung der erfindungsgemäßen Vorrichtungen in Abhängigkeit von der Geometrie des Profiles, der durch den expan­ dierten Zustand der elastischen Muffe auftretenden Drucks sowie der Länge der er­ findungsgemäßen Vorrichtung zu realisieren und zu dimensionieren. It has been found that the thermoplastically processable material of the Profiles has a degree of crosslinking of 20-80%, preferably 30-65%. This makes it possible for the first time to dimension the inventive Devices depending on the geometry of the profile, which by the expan dated condition of the elastic sleeve occurring pressure and the length of it to implement and dimension the device according to the invention.  

Es hat sich als vorteilhaft herausgestellt, dass der thermoplastisch verarbeitbare Werkstoff des Profiles einen Vernetzungsgrad von wenigstens 20% aufweist, so dass auch bei sehr groß dimensionierten erfindungsgemäßen Vorrichtungen, bei de­ nen die nebeneinander angeordneten Wicklungen des Profiles über große Flächen­ bereiche stoffschlüssig miteinander verbunden sind, diese auch problemlos und leicht zu trennen sind.It has proven to be advantageous that the thermoplastically processable Material of the profile has a degree of crosslinking of at least 20%, so that even with very large-sized devices according to the invention, in de NEN the side-by-side windings of the profile over large areas areas are cohesively connected, these also easily and easily are to be separated.

Der thermoplastisch verarbeitbare Werkstoff des Profiles kann im Rahmen der Erfin­ dung mit Hilfe einer sogenannten Silanvernetzung auf dem vorher berechneten und gewünschten Vernetzungsgrad geführt werden.The thermoplastic material of the profile can be used as part of the Erfin with the help of a so-called silane crosslinking on the previously calculated and desired degree of crosslinking.

Es liegt jedoch auch im Rahmen der Erfindung, dass der thermoplastisch verarbeitba­ re Werkstoff des Profiles durch eine sogenannte Strahlenvernetzung behandelt und so den gewünschten Vernetzungsgrad aufweist.However, it is also within the scope of the invention that the thermoplastically processable re material of the profile treated by a so-called radiation crosslinking and thus has the desired degree of crosslinking.

Es hat sich weiterhin als vorteilhaft erwiesen, dass auf Grund der geometrischen, thermischen und mechanischen Anforderungen an die erfindungsgemäße Vorrich­ tung der thermoplastisch verarbeitbare Werkstoff des Profiles aus der Gruppe der Polyolefine, Polyamide, Polyvinylchloride, Ethylenvinylacetate oder Ähnlichem aus­ gewählt ist.It has also proven to be advantageous that due to the geometric, thermal and mechanical requirements for the Vorrich invention processing of the thermoplastically processable material of the profile from the group of Polyolefins, polyamides, polyvinyl chlorides, ethylene vinyl acetates or the like is selected.

Hierdurch ist es erstmals möglich, allen Anforderungen an eine derart erfindungsge­ mäße Vorrichtung in ausreichenden und vor allem kostenmäßiger Hinsicht gerecht zu werden.This makes it possible for the first time to meet all the requirements for such an invention moderate device in sufficient and above all in terms of cost become.

Dabei konnte überraschenderweise festgestellt werden, dass der E-Modul des ther­ moplastisch verarbeitbaren Werkstoffes des Profiles zum E-Modul des Werkstoffes der elastischen Muffe ein Verhältnis von wenigstens 10 aufweist. Hierdurch ist eine optimale und langzeitige Stützung der im expandierten Zustand zu haltenden elasti­ schen Muffe realisierbar, wobei das progressive Entwinden der erfindungsgemäßen Vorrichtung jederzeit problemlos und leicht möglich ist.It was surprisingly found that the modulus of elasticity of ther Moplastic processable material of the profile to the modulus of elasticity of the material the elastic sleeve has a ratio of at least 10. This is one optimal and long-term support of the elasti to be kept in the expanded state can be realized, the progressive unwinding of the invention Device is easily and easily possible at any time.

Weiterhin vorteilhaft wird gesehen, dass das Profil der erfindungsgemäßen Vorrich­ tung einen mehreckigen Querschnitt aufweist, so dass die Fläche der nebeneinander angeordneten stoffschlüssig miteinander zu verbindenden Wicklungen frei dimensio­ nierbar ist und dass auch die Oberfläche der erfindungsgemäßen Vorrichtung, auf der die im expandierten Zustand zu haltende elastische Muffe positioniert ist, so ausge­ führt ist, dass es zu keinen Beschädigungen bzw. Beeinträchtigungen dieser Muffe führt.It is also seen advantageously that the profile of the device according to the invention tion has a polygonal cross-section, so that the surface of the side by side arranged coherent windings to be freely connected to each other is and that the surface of the device according to the invention on which  the elastic sleeve to be held in the expanded state is positioned so out is that there is no damage or impairment to this sleeve leads.

Ein weiterer Vorteil der erfindungsgemäßen Vorrichtung wird darin gesehen, dass das Profil einen runden bzw. ovalen Querschnitt aufweist, so dass bei anderen Anfor­ derungen an die Festigkeit der erfindungsgemäßen Vorrichtung gegenüber dem Druck der im expandierten Zustand zu haltenden elastischen Muffe hier ein komforta­ bles und leichtes Entwinden der nebeneinander angeordneten, stoffschlüssig mitein­ ander verbundenen Wicklungen möglich ist. Es konnte weiterhin ermittelt werden, dass das Profil der erfindungsgemäßen Vorrichtung in seinem Inneren wenigstens einen Hohlraum aufweist, so dass eine derart hergestellte erfindungsgemäße Vor­ richtung auf Grund des reduzierten Materialaufwandes sehr kostengünstig herstellbar ist. Ein weiterer Vorteil wird darin gesehen, dass durch die Verwendung einer derart erfindungsgemäßen Vorrichtung mit einem einen Hohlraum aufweisenden Profil auch eine größere Elastizität der erfindungsgemäßen Vorrichtung realisierbar ist.Another advantage of the device according to the invention is seen in the fact that the profile has a round or oval cross-section, so that with other requirements Changes in the strength of the device according to the invention compared to the Pressure of the elastic sleeve to be kept in the expanded state is a comfort Simple and easy unwinding of the cohesively arranged material other connected windings is possible. It was still possible to determine that the profile of the device according to the invention at least inside has a cavity, so that a thus produced according to the invention direction can be produced very inexpensively due to the reduced material expenditure is. Another advantage is seen in the fact that by using such a device according to the invention with a profile also having a cavity a greater elasticity of the device according to the invention can be realized.

Für den Einsatz der erfindungsgemäßen Vorrichtung bei sehr großen Nennweiten bzw. Durchmessern, die eine hohe radiale Kompressionsfestigkeit realisieren müs­ sen, hat es sich als vorteilhaft erwiesen, dass das Profil einen Doppel-T-förmigen Querschnitt aufweist, so dass die erfindungsgemäße Vorrichtung dem Druck der im expandierten Zustand zu haltenden elastischen Muffe über eine lange Zeit und auch bei extremen Temperaturen einen ausreichenden Widerstand entgegensetzt.For the use of the device according to the invention with very large nominal sizes or diameters that have to achieve a high radial compression strength sen, it has proven advantageous that the profile has a double T-shaped Has cross section, so that the device according to the pressure in the Expanded state to keep elastic sleeve over a long time and also provides sufficient resistance at extreme temperatures.

Es liegt jedoch auch im Rahmen der Erfindung, andere hier nicht näher beschriebene Geometrien zu verwenden, die die Aufgabe der Erfindung äquivalent realisieren.However, it is also within the scope of the invention, others not described here in detail To use geometries that achieve the object of the invention equivalent.

Das Verfahren zur Herstellung einer erfindungsgemäßen Vorrichtung, um eine elasti­ sche Muffe in einem expandierten Zustand zu halten, um längliche, vorzugsweise zylindrische Elemente, wie elektrische Kabelverbindungen und dergleichen zu be­ decken, ist gekennzeichnet durch die folgenden Schritte:
The method for producing a device according to the invention for keeping an elastic sleeve in an expanded state to cover elongate, preferably cylindrical elements, such as electrical cable connections and the like, is characterized by the following steps:

  • - Extrusion des Profiles aus einem thermoplastisch verarbeitbaren Werkstoff- Extrusion of the profile from a thermoplastically processable material
  • - Wenigstens teilweise Vernetzung des Profiles - At least partial networking of the profile  
  • - Wickeln des Profils auf eine translatorisch und/oder rotatorisch bewegbare Achse in Form von nebeneinander angeordneten Wicklungen- Winding the profile on a translationally and / or rotationally movable axis in the form of windings arranged side by side
  • - Erwärmen der spiralförmig nebeneinander liegenden Wicklungen bis zum Erwei­ chungspunkt des thermoplastisch verarbeitbaren Werkstoffes- Heating the windings lying next to each other in a spiral until they heat up point of the thermoplastic material
  • - Abkühlen der spiralförmig nebeneinander liegenden Wicklungen- Cooling of the windings lying side by side in a spiral
  • - Entnahme der stoffschlüssig miteinander verbundenen nebeneinander angeord­ neten Wicklungen.- Removal of the cohesively connected to each other arranged neten windings.

Es hat sich weiterhin als vorteilhaft erwiesen, dass vor dem Abkühlen der nebenein­ ander liegenden Wicklungen eine Kraft in axialer Richtung auf die freien Enden dieser Windungen aufgebracht wird, um hier eine durch Relaxation des Materials entste­ hende Querschnittsveränderung zu kompensieren und die stoffschlüssige Verbin­ dung der nebeneinander angeordneten Wicklungen zu gewährleisten.It has also proven to be advantageous that the side by side before cooling other windings a force in the axial direction on the free ends of these Windings is applied to create here by relaxation of the material to compensate for the cross-sectional change and the integral connection to ensure the winding arranged side by side.

Die erfindungsgemäße Vorrichtung soll nun anhand der Beschreibung eines bevor­ zugten Ausführungsbeispiels, welches die Erfindung nicht einschränkt, näher be­ schrieben werden. Es zeigen:The device according to the invention will now be based on the description of a drafted embodiment, which does not limit the invention, be closer be written. Show it:

Fig. 1 perspektivische Querschnittsansicht einer erfindungsgemäßen Vorrichtung Fig. 1 perspective cross-sectional view of a device according to the invention

Fig. 2 perspektivische Schnittdarstellung nebeneinander angeordneter Wicklungen Fig. 2 perspective sectional view of windings arranged side by side

In Figur ist 1 die erfindungsgemäße Vorrichtung 1 dargestellt, die eine elastische Muffe 2 in einem expandierten Zustand hält. Die erfindungsgemäße Vorrichtung 1 besteht im Wesentlichen aus einem Profil 5, welches in spiralförmig nebeneinander liegenden Wicklungen 3 so ausgebildet ist, dass sich eine zylindrische röhrenförmige Form ergibt. Die spiralförmig nebeneinander angeordneten Wicklungen 3 sind an wenigstens einer Stelle 4 stoffschlüssig miteinander verbunden, wobei das Profil 5 aus einem thermoplastisch verarbeitbaren Werkstoff wie beispielsweise Polyethylen besteht, der in den Bereichen 4 der nebeneinander angeordneten Wicklungen 3 we­ nigstens teilweise vernetzt ist. Das Profil 5 weist ein freies Ende 6 auf, welches nicht mit den nebeneinander angeordneten Wicklungen 3 verbunden ist, sondern welches sich axial im Lumen der erfindungsgemäßen Vorrichtung 1 über die gesamte Länge erstreckt und an einem freien Ende der erfindungsgemäßen Vorrichtung 1 heraus­ ragt. FIG. 1 shows the device 1 according to the invention, which holds an elastic sleeve 2 in an expanded state. The device 1 according to the invention essentially consists of a profile 5 , which is formed in spirally adjacent windings 3 in such a way that a cylindrical tubular shape results. The spirally arranged windings 3 are cohesively connected to one another at at least one point 4 , the profile 5 consisting of a thermoplastic material such as polyethylene, which is at least partially cross-linked in the areas 4 of the windings 3 arranged next to one another. The profile 5 has a free end 6 which is not connected to the windings 3 arranged next to one another, but which extends axially in the lumen of the device 1 according to the invention over the entire length and protrudes from a free end of the device 1 according to the invention.

Das für die erfindungsgemäße Vorrichtung 1 verwendete Profil 5 muss für die Her­ stellung der zylindrischen röhrenförmigen Form keiner weiteren Vorbehandlung oder Nachbehandlung unterzogen werden, sondern das Profil 5 wird, nachdem es extru­ diert und wenigstens im Bereich 4 der nebeneinander angeordneten Wicklungen 3 wenigstens teilweise vernetzt ist, auf eine hier nicht dargestellte translatorisch und/oder rotatorisch bewegbare Achse gewickelt. Das freie Ende 6 des Profiles 5 wird dabei in einer Länge, welche größer ist als die axiale Ausdehnung der erfin­ dungsgemäßen Vorrichtung 1 tangential von der translatorisch und/oder rotatorisch bewegbaren Achse wegweisend fixiert. Nach dem Erwärmen der spiralförmig neben­ einander angeordneten Wicklungen 3 des Profiles 5 wird die erfindungsgemäße Vor­ richtung nach dem Abkühlen von der translatorisch und/oder rotatorisch bewegbaren Achse entnommen. Das freie Ende 6 des Profiles 5 wird durch das Lumen der erfin­ dungsgemäßen Vorrichtung 1 an einer inneren Oberfläche anliegend zurückgescho­ ben, und die im expandierten Zustand zu haltende elastische Muffe 2 wird über den zylindrischen röhrenförmigen Teil so aufgebracht, dass beide fest miteinander ver­ bunden sind. In diesem Ausführungsbeispiel weist das Profil 5 einen mehreckigen bzw. einen rechteckigen Querschnitt ohne einen Hohlraum in seinem Inneren auf.The profile 5 used for the device 1 according to the invention does not have to be subjected to any further pretreatment or post-treatment for the manufacture of the cylindrical tubular shape, but the profile 5 is after it has been extruded and at least partially cross-linked at least in the region 4 of the windings 3 arranged next to one another , wound on a translationally and / or rotationally movable axis, not shown here. The free end 6 of the profile 5 is fixed in a length that is greater than the axial extent of the device 1 according to the invention tangentially fixed away from the translationally and / or rotationally movable axis. After heating the spirally arranged windings 3 of the profile 5 , the device according to the invention is removed after cooling from the translationally and / or rotatably movable axis. The free end 6 of the profile 5 is pushed back by the lumen of the device 1 according to the invention against an inner surface, and the elastic sleeve 2 to be held in the expanded state is applied over the cylindrical tubular part such that both are firmly connected to one another , In this exemplary embodiment, the profile 5 has a polygonal or a rectangular cross section without a cavity in its interior.

In diesem Ausführungsbeispiel ist der rechteckige Querschnitt des Profiles 5 mit den Abmessungen 10 × 5 mm ausgeführt, wobei der thermoplastisch verarbeitbare Werk­ stoff des Profiles ein Polyethylen mit einem Vernetzungsgrad von 38% ist.In this embodiment, the rectangular cross section of the profile 5 with the dimensions 10 × 5 mm is carried out, the thermoplastically processable material of the profile being a polyethylene with a degree of crosslinking of 38%.

In Fig. 2 ist eine perspektivische Schnittdarstellung des Profiles 5 dargestellt, wobei das Profil 5 einen ovalen Querschnitt aufweist, der in seinem Inneren eine Hohlkam­ mer 7 aufweist, die sich über die gesamte Länge des Profiles 5 erstreckt. Der Vorteil dieses Querschnittes des Profils 5 wird darin gesehen, dass durch die Hohlkammer 7 ein verringerter Materialeinsatz und damit eine schnellere Fertigung des thermopla­ stisch verarbeitbaren Werkstoffes möglich ist, bei gleichbleibender Kompressionsfe­ stigkeit der nebeneinander angeordneten Wicklungen 3 des Profiles 5, die an der Stelle 4 stoffschlüssig miteinander verbunden sind. Bedingt durch die ovale Geome­ trie des Profiles 5 entsteht oberhalb und unterhalb des stoffschlüssig miteinander verbundenen Bereiches 4 der spiralförmig nebeneinander angeordneten Wicklungen 3 des Profiles 5 eine Kerbstelle, die den Kraftaufwand für die Entwindung der spiral­ förmig nebeneinander stoffschlüssig miteinander verbundenen Wicklungen 3 weiter reduziert. Die zur Muffe 2 hinweisende Oberseite der nebeneinander angeordneten Wicklungen 3 des Profiles 5 weisen eine annähernd glatte und ebene Oberfläche auf, so dass die im expandierten Zustand zu haltende elastische Muffe 2 nicht beschädigt bzw. beeinträchtigt ist.In Fig. 2 is a perspective sectional view of the profile 5 is shown, wherein the profile 5 has an oval cross-section, which has a hollow chamber 7 in its interior, which extends over the entire length of the profile 5 . The advantage of this cross section of the profile 5 is seen in the fact that through the hollow chamber 7 a reduced use of material and thus a faster production of the thermoplastic material which can be processed is possible with the same compressive strength of the windings 3 of the profile 5 arranged next to one another at the point 4 are cohesively connected. Due to the oval geometry of the profile 5 arises above and below the cohesively connected area 4 of the spirally arranged windings 3 of the profile 5, a notch that further reduces the force required for the unwinding of the spirally connected coils 3 which are connected to one another. The top of the windings 3 of the profile 5 , which are arranged side by side and point towards the sleeve 2 , have an approximately smooth and flat surface, so that the elastic sleeve 2 to be held in the expanded state is not damaged or impaired.

Claims (14)

1. Vorrichtung, um eine elastische Muffe in einem expandierten Zustand zu halten, um längliche, vorzugsweise zylindrische Elemente, wie elektrische Kabelverbin­ dungen und dergleichen zu bedecken, umfassend ein Profil, das spiralförmig in nebeneinander liegenden Wicklungen angeordnet ist, wobei es eine zylindrische röhrenförmige Form einnimmt, dass die nebeneinander liegenden Wicklungen in wenigstens einem Bereich stoffschlüssig miteinander verbunden sind und wobei das Profil aus einem thermoplastisch verarbeitbaren Werkstoff besteht, dadurch gekennzeichnet, dass der thermoplastische Werkstoff in den Bereichen (4) der nebeneinander angeordneten Wicklungen (3) wenigstens teilweise vernetzt ist.1. A device for holding an elastic sleeve in an expanded state to cover elongated, preferably cylindrical elements, such as electrical cable connections and the like, comprising a profile which is spirally arranged in adjacent windings, wherein it has a cylindrical tubular shape assumes that the adjacent windings are integrally connected to one another in at least one area and wherein the profile consists of a thermoplastic material, characterized in that the thermoplastic material is at least partially cross-linked in the areas ( 4 ) of the adjacent windings ( 3 ) , 2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass der thermopla­ stisch verarbeitbare Werkstoff des Profiles (5) einen Vernetzungsgrad von 20-­ 80%, vorzugsweise 30-65% aufweist.2. Device according to claim 1, characterized in that the thermoplastic material of the profile ( 5 ) has a degree of crosslinking of 20-80%, preferably 30-65%. 3. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeich­ net, dass der thermoplastisch verarbeitbare Werkstoff des Profiles (5) einen Ver­ netzungsgrad von wenigstens 20% aufweist.3. Device according to one of the preceding claims, characterized in that the thermoplastically processable material of the profile ( 5 ) has a Ver degree of crosslinking of at least 20%. 4. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeich­ net, dass der thermoplastisch verarbeitbare Werkstoff des Profiles (5) silanver­ netzt ist.4. Device according to one of the preceding claims, characterized in that the thermoplastically processable material of the profile ( 5 ) is networked silane. 5. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeich­ net, dass der thermoplastisch verarbeitbare Werkstoff des Profiles (5) strahlen­ vernetzt ist. 5. Device according to one of the preceding claims, characterized in that the thermoplastically processable material of the profile ( 5 ) is cross-linked. 6. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeich­ net, dass der thermoplastisch verarbeitbare Werkstoff des Profiles (5) aus der Gruppe der Polyolefine, Polyamide, Polyvinylchloride, Ethylenvinylacetate und Ähnlichem ausgewählt ist.6. Device according to one of the preceding claims, characterized in that the thermoplastically processable material of the profile ( 5 ) is selected from the group of polyolefins, polyamides, polyvinyl chlorides, ethylene vinyl acetates and the like. 7. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeich­ net, dass der E-Modul des thermoplastisch verarbeitbaren Werkstoffes des Pro­ files (5) zum E-Modul des Werkstoffes der elastischen Muffe (2) ein Verhältnis von wenigstens 10 aufweist.7. Device according to one of the preceding claims, characterized in that the modulus of elasticity of the thermoplastically processable material of the pro files ( 5 ) to the modulus of elasticity of the material of the elastic sleeve ( 2 ) has a ratio of at least 10. 8. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeich­ net, dass das Profil (5) einen mehreckigen Querschnitt aufweist.8. Device according to one of the preceding claims, characterized in that the profile ( 5 ) has a polygonal cross section. 9. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeich­ net, dass das Profil (5) einen runden bzw. ovalen Querschnitt aufweist.9. Device according to one of the preceding claims, characterized in that the profile ( 5 ) has a round or oval cross section. 10. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeich­ net, dass das Profil (5) einen Doppel-T-förmigen Querschnitt aufweist.10. Device according to one of the preceding claims, characterized in that the profile ( 5 ) has a double-T-shaped cross section. 11. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeich­ net, dass das Profil (5) wenigstens sich eine axial ausdehnende Hohlkammer (7) aufweist.11. Device according to one of the preceding claims, characterized in that the profile ( 5 ) has at least one axially expanding hollow chamber ( 7 ). 12. Verfahren zur Herstellung einer Vorrichtung, um eine elastische Muffe in einem expandierten Zustand zu halten, um längliche, zylindrische Elemente wie elektri­ sche Kabelverbindungen und dergleichen zu bedecken, gekennzeichnet durch die folgenden Schritte:
  • - Extrusion des Profiles aus einem thermoplastisch verarbeitbaren Werkstoff
  • - Wenigstens teilweise Vernetzung des Profiles
  • - Wickeln des Profils auf eine translatorisch und/oder rotatorisch bewegbare Achse in Form von nebeneinander angeordneten Wicklungen
  • - Erwärmen der spiralförmig nebeneinander liegenden Wicklungen bis zum Erwei­ chungspunkt des thermoplastisch verarbeitbaren Werkstoffes
  • - Abkühlen der spiralförmig nebeneinander liegenden Wicklungen
  • - Entnahme der stoffschlüssig miteinander verbundenen nebeneinander angeord­ neten Wicklungen.
12. A method of manufacturing an apparatus for holding an elastic sleeve in an expanded state to cover elongated cylindrical members such as electrical cable connections and the like, characterized by the following steps:
  • - Extrusion of the profile from a thermoplastically processable material
  • - At least partial networking of the profile
  • - Winding the profile on a translationally and / or rotationally movable axis in the form of windings arranged side by side
  • - Heating the coils lying next to each other in a spiral up to the softening point of the thermoplastically processable material
  • - Cooling of the windings lying side by side in a spiral
  • - Removal of the integrally interconnected side by side arranged windings.
13. Verfahren nach Anspruch 12, dadurch gekennzeichnet, dass auf die freien En­ den der spiralförmig nebeneinander liegenden Wicklungen (3) des Profiles (5) ei­ ne axiale Kraft aufgebracht wird.13. The method according to claim 12, characterized in that ei ne axial force is applied to the free ends of the spirally adjacent windings ( 3 ) of the profile ( 5 ). 14. Verfahren zur Herstellung einer Vorrichtung nach Anspruch 13, dadurch gekenn­ zeichnet, dass die axiale Kraft die spiralförmig nebeneinander angeordneten Wicklungen (3) des Profiles (5) aneinander presst.14. A method for producing a device according to claim 13, characterized in that the axial force presses the windings ( 3 ) of the profile ( 5 ) arranged spirally next to one another.
DE10164367A 2001-12-28 2001-12-28 Device for holding elastic sleeve open while it is fitted over cables comprises spiral-shaped thermoplastic profile whose windings are bonded together in some areas, in which thermoplastic is crosslinked Expired - Fee Related DE10164367C1 (en)

Priority Applications (1)

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DE10164367A DE10164367C1 (en) 2001-12-28 2001-12-28 Device for holding elastic sleeve open while it is fitted over cables comprises spiral-shaped thermoplastic profile whose windings are bonded together in some areas, in which thermoplastic is crosslinked

Applications Claiming Priority (1)

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DE10164367A DE10164367C1 (en) 2001-12-28 2001-12-28 Device for holding elastic sleeve open while it is fitted over cables comprises spiral-shaped thermoplastic profile whose windings are bonded together in some areas, in which thermoplastic is crosslinked

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DE102006056781A1 (en) * 2006-12-01 2008-06-05 Rehau Ag + Co. Supporting coil for supporting expanded flexible sleeve, has profile with absorption section and transmission section in cross section, where absorption section absorbs laser light of defined wavelength range
EP1975494A2 (en) 2007-03-27 2008-10-01 REHAU AG + Co Helical support
DE202009014120U1 (en) 2009-10-16 2011-03-03 Rehau Ag + Co. helical support
DE102012103040A1 (en) 2012-04-10 2013-10-10 Nkt Cables Gmbh helical support
CN113579112A (en) * 2021-07-30 2021-11-02 淮南文峰航天电缆有限公司 Heating and shaping device for spiral net wires

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DE3823817C1 (en) * 1988-07-14 1989-11-09 Rehau Ag + Co, 8673 Rehau, De
DE3943296C2 (en) * 1989-12-29 1994-08-11 Minnesota Mining & Mfg Sleeve for covering a connection or an end of an electrical cable
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WO1999008355A1 (en) * 1997-08-12 1999-02-18 Minnesota Mining And Manufacturing Company Support core ribbon for cold-shrink tube

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006056781A1 (en) * 2006-12-01 2008-06-05 Rehau Ag + Co. Supporting coil for supporting expanded flexible sleeve, has profile with absorption section and transmission section in cross section, where absorption section absorbs laser light of defined wavelength range
DE102006056781B4 (en) * 2006-12-01 2011-02-17 Rehau Ag + Co. helical support
EP1975494A2 (en) 2007-03-27 2008-10-01 REHAU AG + Co Helical support
DE102007015167A1 (en) 2007-03-27 2008-10-02 Rehau Ag + Co. helical support
EP1975494A3 (en) * 2007-03-27 2011-03-16 REHAU AG + Co Helical support
DE202009014120U1 (en) 2009-10-16 2011-03-03 Rehau Ag + Co. helical support
EP2311626A1 (en) 2009-10-16 2011-04-20 REHAU AG + Co Plastic hose
DE102012103040A1 (en) 2012-04-10 2013-10-10 Nkt Cables Gmbh helical support
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CN113579112A (en) * 2021-07-30 2021-11-02 淮南文峰航天电缆有限公司 Heating and shaping device for spiral net wires

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