WO2008119844A1 - Protective tubular sheath - Google Patents

Protective tubular sheath Download PDF

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Publication number
WO2008119844A1
WO2008119844A1 PCT/ES2007/000172 ES2007000172W WO2008119844A1 WO 2008119844 A1 WO2008119844 A1 WO 2008119844A1 ES 2007000172 W ES2007000172 W ES 2007000172W WO 2008119844 A1 WO2008119844 A1 WO 2008119844A1
Authority
WO
WIPO (PCT)
Prior art keywords
threads
sheath
monofilament
multifilament
peek
Prior art date
Application number
PCT/ES2007/000172
Other languages
Spanish (es)
French (fr)
Inventor
Jordi Relats Manent
Pere Relats Casas
Original Assignee
Relats, S.A.
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 Relats, S.A. filed Critical Relats, S.A.
Priority to PCT/ES2007/000172 priority Critical patent/WO2008119844A1/en
Publication of WO2008119844A1 publication Critical patent/WO2008119844A1/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L57/00—Protection of pipes or objects of similar shape against external or internal damage or wear
    • F16L57/04—Protection of pipes or objects of similar shape against external or internal damage or wear against fire or other external sources of extreme heat
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04C—BRAIDING OR MANUFACTURE OF LACE, INCLUDING BOBBIN-NET OR CARBONISED LACE; BRAIDING MACHINES; BRAID; LACE
    • D04C1/00—Braid or lace, e.g. pillow-lace; Processes for the manufacture thereof
    • D04C1/02—Braid or lace, e.g. pillow-lace; Processes for the manufacture thereof made from particular materials
    • 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
    • H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
    • H02G3/02—Details
    • H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
    • H02G3/0462—Tubings, i.e. having a closed section
    • H02G3/0481—Tubings, i.e. having a closed section with a circular cross-section
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2505/00—Industrial
    • D10B2505/12—Vehicles

Definitions

  • the present invention is referred to as its title indicates a tubular protective sheath, of the type used for the mechanical and thermal protection of electrical conductors, tubes and other components, and which are formed by wires of different materials.
  • tubes or covers for thermal and / or acoustic protection of electrical conductors, tubes and other components in order to avoid wear due to friction with other parts, the production of noises by knocking said elements against other parts and providing them with thermal insulation when they are close to heat sources.
  • the 9800693 patent refers to a process for the treatment of protection tubes, said tubes being composed of monofilament strands of braided plastic material, being able to incorporate multi-filament threads and / or threads of textured material.
  • the covers of the aforementioned documents provide insufficient thermal protection in certain applications, for example in aeronautics, the object of the present invention being the development of a tubular sheath that allows obtaining a higher degree of thermal protection, a suitable flexibility to facilitate both the adaptation, as the assembly and disassembly of the cover in the application area and to maintain a good acoustic insulation and mechanical resistance characteristics.
  • the tubular protective sheath of the present invention being of the type mentioned above, that is, of those formed from threads of different materials, has constructional features oriented to provide a high degree of thermal protection to the elements housed in its interior, also presenting a high flexibility to facilitate its adaptation, assembly and disassembly at the place of application, as well as a good mechanical resistance and acoustic insulation.
  • said sheath comprises first multifilament threads of aramid fibers and second monofilament polyether ether ketone (PEEK) threads, said first multifilament threads and said second monofilament strands being twisted together.
  • PEEK polyether ether ketone
  • the combination of said threads provides the sheath with high thermal resistance, low smoke emission when exposed to direct flame, good mechanical resistance and adequate sound insulation.
  • the first multifilament threads of aramid fibers are of low consistency and have a high cost, having been provided that they can form between 10 and 50% of the sheath, the remaining percentage of the sheath being constituted by the monofilament polyether fibers -ether-ketone (PEEK).
  • PEEK monofilament polyether fibers -ether-ketone
  • the cover can have an outer and / or internally protective coating of plastic resin, for example silicone, acrylic resin or polyurethane resin
  • FIG. 1 shows a perspective view of a portion of the tubular protective sleeve of the invention.
  • - Figure 2 shows, schematically, a cross section of the sheath, in which the first and second threads can be observed.
  • FIG. 3 shows, schematically, a cross section of a variant embodiment of the sheath, provided on its outer face with a protective coating of silicone resin.
  • the tubular protective sheath referenced as a whole as (1), consists of first multifilament threads (11) of aramid fibers and a few monofilament threads (12) of polyether ether ether ketone (PEEK), twisted with each other, forming the tubular configuration of the sheath (1).
  • first multifilament threads (11) of aramid fibers and a few monofilament threads (12) of polyether ether ether ketone (PEEK), twisted with each other, forming the tubular configuration of the sheath (1).
  • PEEK polyether ether ether ketone
  • the multifilament threads (11) of aramid fibers constitute approximately 50% of the sheath (1), although said percentage could be lower, as mentioned above, considering the minimum 10% acceptable.
  • a coating (13) of polyurethane plastic resin can also be observed.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Insulating Bodies (AREA)

Abstract

Sheath used for mechanical and thermal protection of electric conductors, tubes and other components and comprising first multifilament threads (11) of aramide fibre and second monofilament threads (12) of polyetheretherketone (PEEK), wherein said first multifilament threads (11) and said second monofilament threads (12) are braided together. The first multifilament threads (11) of aramide fibre can make up between 10 and 50% of the sheath (1), the remaining percentage is made up of the second monofilament threads (12) of polyetheretherketone (PEEK).

Description

DESCRIPCIÓN DESCRIPTION
FUNDA TUBULAR DE PROTECCIÓNTUBULAR PROTECTION COVER
Objeto de Ia invenciónObject of the invention
La presente invención se refiere como su título indica a una funda tubular de protección, del tipo de las empleadas para Ia protección mecánica y térmica de conductores eléctricos, tubos y otros componentes, y que están conformadas por hilos de diferentes materiales.The present invention is referred to as its title indicates a tubular protective sheath, of the type used for the mechanical and thermal protection of electrical conductors, tubes and other components, and which are formed by wires of different materials.
Antecedentes de Ia invención.Background of the invention.
Actualmente, en determinados sectores, como Ia automoción, es habitual Ia utilización de tubos o fundas para Ia protección térmica y/o acústica de conductores eléctricos, tubos y otros componentes con el fin de evitar su desgaste por rozamiento con otras piezas, Ia producción de ruidos por el golpeteo de dichos elementos contra otras piezas y proporcionarles un aislamiento térmico cuando se encuentran próximos a fuentes de calor.Currently, in certain sectors, such as the automotive industry, it is usual to use tubes or covers for thermal and / or acoustic protection of electrical conductors, tubes and other components in order to avoid wear due to friction with other parts, the production of noises by knocking said elements against other parts and providing them with thermal insulation when they are close to heat sources.
Actualmente existen diferentes tubos de protección conformados a partir de hilos de diferentes materiales, convenientemente tejidos o trenzados entre sí. Estos tubos, dependiendo de Ia composición de los hilos constitutivos de los mismos, presentan diferentes grados de protección mecánica, acústica y térmica.Currently there are different protection tubes formed from threads of different materials, conveniently woven or braided together. These tubes, depending on the composition of the threads constituting them, have different degrees of mechanical, acoustic and thermal protection.
En este apartado es de destacar Ia existencia anterior de las patentes de invención 9500893 y 9800693 del mismo titular de Ia presente invención.In this section it is worth highlighting the previous existence of the invention patents 9500893 and 9800693 of the same holder of the present invention.
En Ia patente de invención 9500893 se describe un tubo de aislamiento flexible que comprende unos primeros hilos de material plástico, unos segundos hilos trenzados de material texturizado y unos terceros hilos de múltiples filamentos, preferentemente de poliéster.In the invention patent 9500893 a flexible insulation tube is described which comprises first strands of plastic material, a few twisted strands of textured material and third strands of multiple filaments, preferably of polyester.
La patente 9800693 se refiere a un procedimiento para el tratamiento de tubos de protección, estando compuestos dichos tubos por hilos monofilamento de material plástico trenzados, pudiendo incorporar hilos de múltiples filamentos y/o hilos de material texturizado.The 9800693 patent refers to a process for the treatment of protection tubes, said tubes being composed of monofilament strands of braided plastic material, being able to incorporate multi-filament threads and / or threads of textured material.
Otro antecedente a mencionar es Ia patente europea con número de publicación 0 472 611 , referente a una funda absorbente de sonido que está compuesta por un primer hilo y un segundo hilo entretejidos, pudiendo ser ambos hilos de poliéster o uno de ellos de polipropileno y el otro de un monofilamento de poliéster.Another antecedent to mention is the European patent with publication number 0 472 611, referring to a sound absorbing case that is composed by a first thread and a second interwoven thread, both of which may be polyester or one of them made of polypropylene and the other of a polyester monofilament.
Las fundas de los documentos mencionados anteriormente proporcionan una protección térmica insuficiente en determinadas aplicaciones, por ejemplo en Ia aeronáutica, siendo el objeto de Ia presente invención el desarrollo de una funda tubular que permita obtener un mayor grado de protección térmica, una flexibilidad adecuada para facilitar tanto Ia adaptación, como el montaje y desmontaje de Ia funda en Ia zona de aplicación y a mantener una buenas características de aislamiento acústico y de resistencia mecánica.The covers of the aforementioned documents provide insufficient thermal protection in certain applications, for example in aeronautics, the object of the present invention being the development of a tubular sheath that allows obtaining a higher degree of thermal protection, a suitable flexibility to facilitate both the adaptation, as the assembly and disassembly of the cover in the application area and to maintain a good acoustic insulation and mechanical resistance characteristics.
Descripción de Ia invenciónDescription of the invention
La funda tubular de protección de Ia presenta invención, siendo del tipo de las mencionadas anteriormente, es decir, de las conformadas a partir de hilos de diferentes materiales, presenta unas particularidades constructivas orientadas a proporcionarle un elevado grado de protección térmica a los elementos alojados en su interior, presentando además una elevada flexibilidad para facilitar su adaptación, montaje y desmontaje en el lugar de aplicación, así como una buena resistencia mecánica y aislamiento acústico.The tubular protective sheath of the present invention, being of the type mentioned above, that is, of those formed from threads of different materials, has constructional features oriented to provide a high degree of thermal protection to the elements housed in its interior, also presenting a high flexibility to facilitate its adaptation, assembly and disassembly at the place of application, as well as a good mechanical resistance and acoustic insulation.
De acuerdo con Ia invención, dicha funda comprende unos primeros hilos multifilamento de fibras de aramida y unos segundos hilos monofilamento de poli-éter- éter-cetona (PEEK), estando dichos primeros hilos multifilamento y dichos segundos hilos monofilamento trenzados entre sí.According to the invention, said sheath comprises first multifilament threads of aramid fibers and second monofilament polyether ether ketone (PEEK) threads, said first multifilament threads and said second monofilament strands being twisted together.
La combinación de dichos hilos proporciona a Ia funda una gran resistencia térmica, una baja emisión de humos al ser expuesta a llama directa, una buena resistencia mecánica y un aislamiento acústico adecuado.The combination of said threads provides the sheath with high thermal resistance, low smoke emission when exposed to direct flame, good mechanical resistance and adequate sound insulation.
Los primeros hilos multifilamento de fibras de aramida son de baja consistencia y tienen un coste elevado, habiéndose previsto que puedan conformar entre el 10 y el 50% de Ia funda, estando constituido el porcentaje restante de Ia funda por las fibras monofilamento de poli-éter-éter-cetona (PEEK). Esta combinación permite que Ia funda tenga una consistencia y una flexibilidad adecuadas para evitar el indeseado efecto de fuelle de Ia funda durante Ia introducción de cables o tubos en su interior.The first multifilament threads of aramid fibers are of low consistency and have a high cost, having been provided that they can form between 10 and 50% of the sheath, the remaining percentage of the sheath being constituted by the monofilament polyether fibers -ether-ketone (PEEK). This combination allows the sheath to have adequate consistency and flexibility to avoid the unwanted bellows effect of the sheath during the introduction of cables or tubes inside.
Opcionalmente, Ia funda puede presentar exterior y/o interiormente, un recubrimiento protector de resina plástica, por ejemplo de silicona, resina acríiica o resina de poliuretano.Optionally, the cover can have an outer and / or internally protective coating of plastic resin, for example silicone, acrylic resin or polyurethane resin
Descripción de las figuras.Description of the figures.
Para complementar Ia descripción que se está realizando y con objeto de facilitar Ia comprensión de las características de Ia invención, se acompaña a Ia presente memoria descriptiva un juego de dibujos en los que, con carácter ilustrativo y no limitativo, se ha representado Io siguiente:To complement the description that is being made and in order to facilitate the understanding of the characteristics of the invention, a set of drawings is attached to the present specification in which, for illustrative and non-limiting purposes, the following has been represented:
- La figura 1 muestra una vista en perspectiva de una porción de Ia funda tubular de protección de Ia invención. - La figura 2 muestra, de forma esquemática una sección transversal de Ia funda, en Ia que se pueden observar los primeros y segundos hilos.- Figure 1 shows a perspective view of a portion of the tubular protective sleeve of the invention. - Figure 2 shows, schematically, a cross section of the sheath, in which the first and second threads can be observed.
- La figura 3 muestra, de forma esquemática, una sección transversal de una variante de realización de Ia funda, provista en su cara externa de un recubrimiento protector de resina de silicona.- Figure 3 shows, schematically, a cross section of a variant embodiment of the sheath, provided on its outer face with a protective coating of silicone resin.
Realización preferente de Ia invenciónPreferred embodiment of the invention
La funda tubular de protección, referenciada en su conjunto como (1) está constituida por unos primeros hilos multifilamento (11) de fibras de aramida y por unos segundos hilos monofilamento (12) de poli-éter-éter-cetona (PEEK), trenzados entre sí, conformando Ia configuración tubular de Ia funda (1 ).The tubular protective sheath, referenced as a whole as (1), consists of first multifilament threads (11) of aramid fibers and a few monofilament threads (12) of polyether ether ether ketone (PEEK), twisted with each other, forming the tubular configuration of the sheath (1).
En el ejemplo de realización mostrado en Ia figura 2, los hilos multifilamento (11) de fibras de aramida constituyen aproximadamente el 50% de Ia funda (1), aunque dicho porcentaje podría ser inferior, tal como se ha mencionado anteriormente, considerándose el mínimo aceptable del 10%. También se puede observar un recubrimiento (13) de resina plástica de poliuretano.In the example of embodiment shown in Figure 2, the multifilament threads (11) of aramid fibers constitute approximately 50% of the sheath (1), although said percentage could be lower, as mentioned above, considering the minimum 10% acceptable. A coating (13) of polyurethane plastic resin can also be observed.
Una vez descrita suficientemente Ia naturaleza de Ia invención, así como un ejemplo de realización preferente, se hace constar a los efectos oportunos que los materiales, forma, tamaño y disposición de los elementos descritos podrán ser modificados, siempre y cuando ello no suponga una alteración de las características esenciales de Ia invención que se reivindican a continuación. Once the nature of the invention has been sufficiently described, as well as an example of a preferred embodiment, it is stated for the appropriate purposes that the materials, shape, size and arrangement of the described elements may be modified, provided that this does not imply an alteration of the essential characteristics of the invention that are claimed below.

Claims

REIVINDICACIONES
1.- Funda tubular de protección, del tipo de las empleadas para Ia protección mecánica y térmica de conductores eléctricos, tubos y otros componentes y que están conformadas por hilos de diferentes materiales; caracterizada porque comprende unos primeros hilos multifilamento (11 ) de fibras de aramida y unos segundos hilos monofilamento (12) de poli-éter-éter-cetona (PEEK), estando dichos primeros hilos multifilamento (11 ) y dichos segundos hilos monofilamento (12) trenzados entre sí.1.- Tubular protective sleeve, of the type used for the mechanical and thermal protection of electrical conductors, tubes and other components and which are made up of wires of different materials; characterized in that it comprises first multifilament threads (11) of aramid fibers and second monofilament threads (12) of polyether ether ketone (PEEK), said first multifilament threads (11) and said second monofilament threads (12) twisted each other.
2.- Funda, según Ia reivindicación 1, caracterizada porque los primeros hilos multifilamento (11 ) de fibras de aramida constituyen entre el 10 y el 50% de Ia funda (1), estando constituido el porcentaje restante por los segundos hilos monofilamento (12) de poli-éter-éter-cetona (PEEK).2. Cover, according to claim 1, characterized in that the first multifilament threads (11) of aramid fibers constitute between 10 and 50% of the sheath (1), the remaining percentage being constituted by the second monofilament threads (12 ) of polyether ether ketone (PEEK).
3.- Funda, según reivindicación 2, caracterizada porque comprende un recubrimiento protector (13) de resina plástica (silicona, acrílica o de poliuretano). 3. Cover, according to claim 2, characterized in that it comprises a protective coating (13) of plastic resin (silicone, acrylic or polyurethane).
PCT/ES2007/000172 2007-03-29 2007-03-29 Protective tubular sheath WO2008119844A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/ES2007/000172 WO2008119844A1 (en) 2007-03-29 2007-03-29 Protective tubular sheath

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/ES2007/000172 WO2008119844A1 (en) 2007-03-29 2007-03-29 Protective tubular sheath

Publications (1)

Publication Number Publication Date
WO2008119844A1 true WO2008119844A1 (en) 2008-10-09

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9394636B2 (en) 2013-02-06 2016-07-19 Federal-Mogul Powertrain, Inc. Enhanced braided sleeve and method of construction thereof

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2072435T3 (en) * 1989-05-19 1995-07-16 Bentley Harris Mfg Co SOUND ABSORBENT CASE.
ES2120854A1 (en) * 1995-05-10 1998-11-01 Relats Sa Flexible insulating hose
FR2881054A1 (en) * 2005-01-25 2006-07-28 Fed Mogul Systems Prot Group S Thermal protective sheath for e.g. electric cable bundle, has split on its longitudinal side and inner layer with glass fibers coated with fire retardant silicone, and woven outer layer with Nomex type meta-aramid fiber multi-filaments

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2072435T3 (en) * 1989-05-19 1995-07-16 Bentley Harris Mfg Co SOUND ABSORBENT CASE.
ES2120854A1 (en) * 1995-05-10 1998-11-01 Relats Sa Flexible insulating hose
FR2881054A1 (en) * 2005-01-25 2006-07-28 Fed Mogul Systems Prot Group S Thermal protective sheath for e.g. electric cable bundle, has split on its longitudinal side and inner layer with glass fibers coated with fire retardant silicone, and woven outer layer with Nomex type meta-aramid fiber multi-filaments

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9394636B2 (en) 2013-02-06 2016-07-19 Federal-Mogul Powertrain, Inc. Enhanced braided sleeve and method of construction thereof

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