FR2825443A1 - Annular tubular sheath for protecting vehicle wiring, comprises longitudinal strip of flexible material such as thermoplastic elastomer included in sheath at 5-180 degrees to longitudinal slit - Google Patents

Annular tubular sheath for protecting vehicle wiring, comprises longitudinal strip of flexible material such as thermoplastic elastomer included in sheath at 5-180 degrees to longitudinal slit Download PDF

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Publication number
FR2825443A1
FR2825443A1 FR0107291A FR0107291A FR2825443A1 FR 2825443 A1 FR2825443 A1 FR 2825443A1 FR 0107291 A FR0107291 A FR 0107291A FR 0107291 A FR0107291 A FR 0107291A FR 2825443 A1 FR2825443 A1 FR 2825443A1
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FR
France
Prior art keywords
sheath
flexible material
degrees
thermoplastic elastomer
longitudinal
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.)
Granted
Application number
FR0107291A
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French (fr)
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FR2825443B1 (en
Inventor
Pascal Commeaux
Emmanuel Klinklin
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.)
Sofanou SA
Original Assignee
Sofanou SA
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
Priority to FR0107291A priority Critical patent/FR2825443B1/en
Application filed by Sofanou SA filed Critical Sofanou SA
Priority to MXPA03009495A priority patent/MXPA03009495A/en
Priority to PCT/IB2002/001365 priority patent/WO2002087048A1/en
Priority to EP02722606A priority patent/EP1382102B1/en
Priority to AT02722606T priority patent/ATE527733T1/en
Priority to JP2002584452A priority patent/JP2004524799A/en
Publication of FR2825443A1 publication Critical patent/FR2825443A1/en
Application granted granted Critical
Publication of FR2825443B1 publication Critical patent/FR2825443B1/en
Priority to US10/679,666 priority patent/US6938645B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • H02G3/0468—Corrugated
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/13—Articles with a cross-section varying in the longitudinal direction, e.g. corrugated pipes
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/303—Extrusion nozzles or dies using dies or die parts movable in a closed circuit, e.g. mounted on movable endless support
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2023/00—Tubular articles
    • B29L2023/18—Pleated or corrugated hoses
    • 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
    • B29L2031/00—Other particular articles
    • B29L2031/22—Hinges, pivots

Landscapes

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

Abstract

The annular tubular sheath is split (1) longitudinally along one part of the periphery and a longitudinal strip (32) of a flexible material is included in the sheath at 5-180 degrees displacement from the split to form a hinge to allow a sheath section (5) to open. The flexible material is preferably a thermoplastic elastomer and the strip is produced by co-extrusion using an extrusion head with an insert An Independent claim is also included for the method of manufacturing the sheath and flexible hinge strip by using an extrusion head with an insert

Description

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GAINE TUBULAIRE A CHARNIER
La présente invention est relative à une gaine tubulaire souple annelée, et plus particulièrement à une gaine utilisée pour la protection et le positionnement de faisceaux électriques. HINGE TUBULAR SHEATH
The present invention relates to a flexible corrugated tubular sheath, and more particularly to a sheath used for the protection and positioning of electrical harnesses.

Les gaines tubulaires annelées, c'est à dire celles dont la forme ressemble à une succession d'anneaux reliés les uns aux autres, sont usuellement réalisées en matières plastiques extrudées, telles que le polypropylène, le polyamide ou les polyesters. Ces gaines permettent la réalisation de réseaux de protection complexes pour des faisceaux de fils ou des câbles électriques au sein de navires, d'avions ou de véhicules automobiles, et dans ce dernier cas notamment, dans le compartiment moteur. Ce type de procédé est décrit plus en détail par exemple dans les documents FR 2 171 844, GB 1 250 639 et GB 1 311 205.  The corrugated tubular sheaths, that is to say those whose shape resembles a succession of rings connected to each other, are usually made of extruded plastics, such as polypropylene, polyamide or polyesters. These sheaths allow the production of complex protection networks for bundles of wires or electric cables in ships, planes or motor vehicles, and in the latter case in particular in the engine compartment. This type of process is described in more detail, for example in documents FR 2 171 844, GB 1 250 639 and GB 1 311 205.

Afin de permettre la mise en place des fils ou câbles à l'intérieur de ces gaines, celles-ci sont fendues. C'est à dire qu'elles ont été coupées selon une ligne droite longitudinale en fin de procédé de fabrication. On peut alors introduire ultérieurement en n'importe quelle zone de la gaine des fils et câbles électriques directement au travers de la fente. Une des principales caractéristiques d'un tube annelé fendu est sa faculté à se refermer après ouverture, cette caractéristique est donnée par la résilience des parois verticales des annelures.  In order to allow the establishment of wires or cables inside these sheaths, they are split. That is to say that they were cut along a longitudinal straight line at the end of the manufacturing process. It is then possible to introduce subsequently into any zone of the sheath electrical wires and cables directly through the slot. One of the main characteristics of a split ringed tube is its ability to close after opening, this characteristic is given by the resilience of the vertical walls of the rings.

Ces gaines de protections peuvent avoir des systèmes de fermetures plus ou moins élaborés afin d'éviter que le tube ne laisse échapper des fils en des zones de faibles rayons de courbure où la fente tend à se réouvrir. Plusieurs documents connus décrivent ces types de gaines tels que DE-U-89 030 70, EP 0 114 213, DE 34 05552 et WO 97 323 79. Le procédé décrit dans le dernier document cité est la propriété de la société SOFANOU.  These protective sheaths can have more or less elaborate closure systems in order to prevent the tube from letting wires escape in areas of small radii of curvature where the slot tends to reopen. Several known documents describe these types of sheaths such as DE-U-89 030 70, EP 0 114 213, DE 34 05552 and WO 97 323 79. The process described in the last cited document is the property of the company SOFANOU.

Satisfaisantes dans la majorité des cas, on constate toutefois que deux inconvénients subsistent. La force nécessaire à l'ouverture de la gaine avec ou sans système de fermeture est trop importante. Souvent lors de la mise en oeuvre, l'opérateur est obligé d'utiliser un outil afin de permettre, sans se blesser, l'introduction des câbles et des fils. Et d'autre part, la mise en place des composants génère une déformation irréversible des annelures, alors le retour en  Satisfactory in the majority of cases, we note however that two drawbacks remain. The force required to open the sheath with or without a closure system is too great. Often during implementation, the operator is forced to use a tool to allow, without injury, the introduction of cables and wires. And on the other hand, the installation of the components generates an irreversible deformation of the rings, then the return in

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position initiale est plus délicat. Dans ce cas, le tube peut avoir une fente de plusieurs dixièmes de millimètres (voir plusieurs millimètres) ce qui est un inconvénient pour la protection des fils ou des câbles présents à l'intérieur. La déformation permanente du tube lors de l'ouverture est liée au fait que la matière plastique est sortie de sa zone de déformation élastique.  initial position is more delicate. In this case, the tube may have a slit of several tenths of a millimeter (see several millimeters) which is a disadvantage for the protection of the wires or cables present inside. The permanent deformation of the tube during opening is linked to the fact that the plastic material has left its elastic deformation zone.

La présente invention divulgue une gaine annelée ou non dont une partie du tube est en matière souple, par exemple en élastomère thermoplastique. La partie souple est située à environ 50 degrés de la fente du tube par rapport à l'axe de celui-ci. Cette partie souple étant limitée à une zone restreinte du périmètre, elle ne modifie pas les caractéristiques du produit d'origine. Par contre elle procure au tube un effet charnière ou un effet clapet, qui permet l'ouverture de celui-ci avec un effort beaucoup moins important et évite donc l'utilisation d'un outil.  The present invention discloses a corrugated sheath or not, part of the tube of which is made of flexible material, for example of thermoplastic elastomer. The flexible part is located about 50 degrees from the slot of the tube relative to the axis of the latter. This flexible part being limited to a restricted area of the perimeter, it does not modify the characteristics of the original product. By cons it provides the tube a hinge effect or a valve effect, which allows the opening thereof with a much less effort and therefore avoids the use of a tool.

L'élasticité de la matière souple utilisée permet une très bonne fermeture de la gaine et un retour systématique en position fermé. Effectivement, les déformations élastiques permises sur la matière coextrudée sont beaucoup plus importantes que sur la matière principale du tube. The elasticity of the flexible material used allows very good closure of the sheath and systematic return to the closed position. Indeed, the elastic deformations allowed on the coextruded material are much greater than on the main material of the tube.

Afin de permettre la mise en oeuvre de composants de diamètres équivalents au diamètre intérieur de la gaine sans déformer celle-ci, comme expliqué précédemment, nous pouvons réaliser deux coextrusions de matière souple sur un même tube. Ces deux bandes de matière souple se trouvent donc symétriques par rapport à l'axe de la gaine positionné sur la fente longitudinale. Par l'intermédiaire de ce double effet charnière nous multiplions par deux l'ouverture potentielle de la gaine sans déformation irréversible.  In order to allow the use of components with diameters equivalent to the inside diameter of the sheath without deforming the latter, as explained above, we can make two coextrusions of flexible material on the same tube. These two strips of flexible material are therefore symmetrical with respect to the axis of the sheath positioned on the longitudinal slot. By means of this double hinge effect we double the potential opening of the sheath without irreversible deformation.

L'invention sera mieux comprise à l'aide des schémas ci-joints, pris à titre d'exemple et nullement limitatif, décrit par les figures suivantes : - La figure 1 est une vue en perspective d'une gaine annelée selon l'invention, avec une seule bande longitudinale souple 32.  The invention will be better understood using the attached diagrams, taken by way of example and in no way limiting, described by the following figures: - Figure 1 is a perspective view of a corrugated sheath according to the invention , with a single flexible longitudinal strip 32.

- La figure 2 est une vue en perspective d'une gaine selon l'invention, avec deux bandes longitudinales souples 32A et 32B symétriques par rapport à l'axe positionné sur la fente de la gaine.  - Figure 2 is a perspective view of a sheath according to the invention, with two flexible longitudinal bands 32A and 32B symmetrical with respect to the axis positioned on the slot of the sheath.

- La figure 3 est une vue en perspective d'une gaine selon l'invention, appliquée à une gaine ayant une languette de fermeture 31. La  - Figure 3 is a perspective view of a sheath according to the invention, applied to a sheath having a closing tab 31. The

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bande longitudinale 32 en matière souple permet l'ouverture du tube. Nous pourrions envisager que le clapet soit actionné vers l'intérieur de la gaine pour permettre l'introduction des composants, cette solution n'est pas représentée.  longitudinal strip 32 of flexible material allows the opening of the tube. We could consider that the valve is actuated towards the inside of the sheath to allow the introduction of the components, this solution is not shown.

- La figure 4 est une vue schématique d'un poinçon/filière d'une tête d'extrusion.  - Figure 4 is a schematic view of a punch / die of an extrusion head.

La figure 5 est une vue schématique d'une tête d'extrusion ainsi qu'une partie de la mouleuse.  Figure 5 is a schematic view of an extrusion head and part of the molding machine.

D'autre part cette gaine, dont le procédé est défini ci-après, reste une gaine peu coûteuse.  On the other hand this sheath, the method of which is defined below, remains an inexpensive sheath.

Une gaine selon l'invention est fabriquée par une coextrusion positionnée sur une génératrice se trouvant à un angle pouvant varier entre 5 et 180 degrés de l'endroit où la coupe longitudinale du tube est réalisée. Selon un mode de réalisation préféré on positionnera la coextrusion approximativement à 50 degrés de la fente et la largeur de la coextrusion représente entre 0,5 et 10 mm de préférence entre 2 et 5 mm. Ce mode de réalisation est adapté à une gaine standard ou à une gaine possédant une languette de fermeture.  A sheath according to the invention is manufactured by a coextrusion positioned on a generator located at an angle which can vary between 5 and 180 degrees from the place where the longitudinal cut of the tube is made. According to a preferred embodiment, the coextrusion will be positioned approximately 50 degrees from the slot and the width of the coextrusion represents between 0.5 and 10 mm, preferably between 2 and 5 mm. This embodiment is suitable for a standard sheath or a sheath having a closing tab.

Par rapport au procédé de fabrication d'une gaine annelée fendue standard, ce procédé ne nécessite qu'une modification de la tête d'extrusion afin de permettre l'arrivée de la seconde matière, élastomère thermoplastique, sur le profil initial avant la mouleuse. Dans le cadre d'une fabrication comportant deux bandes de matière souple, il faut doubler le dispositif de coextrusion sur la tête d'extrusion.  Compared to the manufacturing process of a standard split corrugated sheath, this process requires only a modification of the extrusion head in order to allow the arrival of the second material, thermoplastic elastomer, on the initial profile before the molding machine. In the context of a production comprising two strips of flexible material, the coextrusion device must be doubled on the extrusion head.

La figure 4 illustre le poinçon/filière 10 d'une tête d'extrusion. Le repère 14 désigne l'insert où est positionnée la coextrusion au sein de la filière 12. Le repère 13 désigne le poinçon. Afin de permettre une coextrusion sur la totalité de l'épaisseur de paroi du tube annelé, l'insert 14 permettant le positionnement de la coextrusion vient en butée sur le poinçon 13, bloquant ainsi le flux de la matière principale. L'extrémité oblique du repère 14 favorise l'orientation de la matière souple, le repère 15 désigne le positionnement d'un blocage mécanique permettant l'orientation de l'insert de coextrusion 14.  FIG. 4 illustrates the punch / die 10 of an extrusion head. The reference 14 designates the insert where the coextrusion is positioned within the die 12. The reference 13 designates the punch. In order to allow coextrusion over the entire wall thickness of the corrugated tube, the insert 14 allowing the positioning of the coextrusion abuts on the punch 13, thus blocking the flow of the main material. The oblique end of the mark 14 favors the orientation of the flexible material, the mark 15 designates the positioning of a mechanical blocking allowing the orientation of the coextrusion insert 14.

La figure 5 illustre une tête d'extrusion 20 avec une partie de la mouleuse comprenant deux séries de coquilles 21 et 21'parallèles et symétriques.  FIG. 5 illustrates an extrusion head 20 with a part of the molding machine comprising two series of shells 21 and 21 ′ parallel and symmetrical.

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Le repère 24 montre la coextrusion positionnée au sein de la filière 22, en butée sur le poinçon 23 et orientée par l'insert mécanique 25. The reference 24 shows the coextrusion positioned within the die 22, in abutment on the punch 23 and oriented by the mechanical insert 25.

Claims (4)

REVENDICATIONS 1. Gaine tubulaire fendue suivant une coupe longitudinale de la gaine, caractérisée en ce qu'une bande longitudinale (32) de la gaine est réalisée en matière souple. CLAIMS 1. Tubular sheath split along a longitudinal section of the sheath, characterized in that a longitudinal strip (32) of the sheath is made of flexible material. 2. Gaine selon la revendication 1, caractérisée en ce que la bande longitudinale (32) occupe une position angulaire comprise entre 5 et 180 degrés par rapport à la coupe longitudinale (1). 2. Sheath according to claim 1, characterized in that the longitudinal strip (32) occupies an angular position between 5 and 180 degrees relative to the longitudinal section (1). 3. Procédé de fabrication d'une gaine selon la revendication 1 ou 2 par extrusion de matière plastique, caractérisé en ce que la bande longitudinale (32) en matière souple est obtenue par coextrusion d'un matériau élastomère. 3. A method of manufacturing a sheath according to claim 1 or 2 by plastic extrusion, characterized in that the longitudinal strip (32) of flexible material is obtained by coextrusion of an elastomeric material. 4. Dispositif pour la mise en oeuvre d'un procédé selon la revendication 3, caractérisé en ce qu'il comprend une tête d'extrusion (10,20) comportant un insert (14,24) de position de la coextrusion en butée sur un poinçon (13,23) pour bloquer le flux de la matière plastique extrudée et permettre le flux du matériau élastomère.4. Device for implementing a method according to claim 3, characterized in that it comprises an extrusion head (10,20) comprising an insert (14,24) for positioning the coextrusion in abutment on a punch (13,23) to block the flow of the extruded plastic and allow the flow of the elastomeric material.
FR0107291A 2001-04-25 2001-06-05 HINGE TUBULAR SHEATH Expired - Lifetime FR2825443B1 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
FR0107291A FR2825443B1 (en) 2001-06-05 2001-06-05 HINGE TUBULAR SHEATH
PCT/IB2002/001365 WO2002087048A1 (en) 2001-04-25 2002-04-24 Protective sheath comprising a longitudinal flexible material strip and method for producing said sheath
EP02722606A EP1382102B1 (en) 2001-04-25 2002-04-24 Protective sheath comprising a longitudinal flexible material strip and method for producing said sheath
AT02722606T ATE527733T1 (en) 2001-04-25 2002-04-24 PROTECTIVE COVERING WITH A LONGITUDINAL STRIP MADE OF FLEXIBLE MATERIAL AND ITS PRODUCTION PROCESS
MXPA03009495A MXPA03009495A (en) 2001-04-25 2002-04-24 Protective sheath comprising a longitudinal flexible material strip and method for producing said sheath.
JP2002584452A JP2004524799A (en) 2001-04-25 2002-04-24 Protective sheath having longitudinally disposed strips of flexible material and method of manufacturing the same
US10/679,666 US6938645B2 (en) 2001-04-25 2003-10-06 Protective sheath having a longitudinal strip made of flexible material, and method of manufacturing such a sheath

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0107291A FR2825443B1 (en) 2001-06-05 2001-06-05 HINGE TUBULAR SHEATH

Publications (2)

Publication Number Publication Date
FR2825443A1 true FR2825443A1 (en) 2002-12-06
FR2825443B1 FR2825443B1 (en) 2003-09-19

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FR0107291A Expired - Lifetime FR2825443B1 (en) 2001-04-25 2001-06-05 HINGE TUBULAR SHEATH

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2895581A1 (en) * 2005-12-23 2007-06-29 Sofanou Sa Grooved wiring harness protection sheath for motor vehicle, has wall with slot cut for forming slotted edges, where wall is incised by cutting blade along longitudinal direction for forming two opposite incised edges for forming hinge

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1250639A (en) 1968-10-21 1971-10-20
GB1311205A (en) 1969-04-21 1973-03-28 Wavin Bv Apparatus for producing thermoplastics tubes
FR2171844A1 (en) 1970-05-14 1973-09-28 Lefebvre Pierre
EP0114213A2 (en) 1982-12-16 1984-08-01 Wilhelm Hegler Corrugated sheathing tube
DE3405552A1 (en) 1984-02-16 1985-08-29 Fränkische Rohrwerke Gebrüder Kirchner GmbH & Co, 8729 Königsberg Plastic protective tube
DE8903070U1 (en) 1989-03-13 1989-06-08 Hewing GmbH, 4434 Ochtrup Sheathing pipe for installation purposes
WO1997032379A1 (en) 1996-02-28 1997-09-04 Sofanou S.A. Split grooved sheath
EP0859440A1 (en) * 1997-02-14 1998-08-19 FRÄNKISCHE ROHRWERKE, GEBR. KIRCHNER GmbH &amp; Co. Plastic corrugated pipe with a longitudinal slit
GB2342708A (en) * 1998-10-13 2000-04-19 Federal Mogul Technology Ltd Flexible protective sleeve

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1250639A (en) 1968-10-21 1971-10-20
GB1311205A (en) 1969-04-21 1973-03-28 Wavin Bv Apparatus for producing thermoplastics tubes
FR2171844A1 (en) 1970-05-14 1973-09-28 Lefebvre Pierre
EP0114213A2 (en) 1982-12-16 1984-08-01 Wilhelm Hegler Corrugated sheathing tube
DE3405552A1 (en) 1984-02-16 1985-08-29 Fränkische Rohrwerke Gebrüder Kirchner GmbH & Co, 8729 Königsberg Plastic protective tube
DE8903070U1 (en) 1989-03-13 1989-06-08 Hewing GmbH, 4434 Ochtrup Sheathing pipe for installation purposes
WO1997032379A1 (en) 1996-02-28 1997-09-04 Sofanou S.A. Split grooved sheath
EP0859440A1 (en) * 1997-02-14 1998-08-19 FRÄNKISCHE ROHRWERKE, GEBR. KIRCHNER GmbH &amp; Co. Plastic corrugated pipe with a longitudinal slit
GB2342708A (en) * 1998-10-13 2000-04-19 Federal Mogul Technology Ltd Flexible protective sleeve

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2895581A1 (en) * 2005-12-23 2007-06-29 Sofanou Sa Grooved wiring harness protection sheath for motor vehicle, has wall with slot cut for forming slotted edges, where wall is incised by cutting blade along longitudinal direction for forming two opposite incised edges for forming hinge

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Publication number Publication date
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