FR2881702A1 - Gusset envelope for e.g. vehicle door cable, has peripheral lip, and split U-packing to connect cable to helical gusset, forming cable grommet, with adhesive tape, where gusset is bound to panels by plastic inserts constituting end clamps - Google Patents

Gusset envelope for e.g. vehicle door cable, has peripheral lip, and split U-packing to connect cable to helical gusset, forming cable grommet, with adhesive tape, where gusset is bound to panels by plastic inserts constituting end clamps Download PDF

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Publication number
FR2881702A1
FR2881702A1 FR0511033A FR0511033A FR2881702A1 FR 2881702 A1 FR2881702 A1 FR 2881702A1 FR 0511033 A FR0511033 A FR 0511033A FR 0511033 A FR0511033 A FR 0511033A FR 2881702 A1 FR2881702 A1 FR 2881702A1
Authority
FR
France
Prior art keywords
gusset
cable
panels
split
packing
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.)
Withdrawn
Application number
FR0511033A
Other languages
French (fr)
Inventor
Bernard Renzo
Pascal Tournier
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.)
RZ ENGINEERING SOC PAR ACTIONS
Original Assignee
RZ ENGINEERING SOC PAR ACTIONS
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 RZ ENGINEERING SOC PAR ACTIONS filed Critical RZ ENGINEERING SOC PAR ACTIONS
Priority to FR0511020A priority Critical patent/FR2883109A1/en
Priority to FR0511033A priority patent/FR2881702A1/en
Priority to PCT/IB2005/003277 priority patent/WO2006048737A2/en
Priority to EP05805374A priority patent/EP1807917A2/en
Publication of FR2881702A1 publication Critical patent/FR2881702A1/en
Withdrawn legal-status Critical Current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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/16—Making multilayered or multicoloured articles
    • B29C45/1676—Making multilayered or multicoloured articles using a soft material and a rigid material, e.g. making articles with a sealing part
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
    • B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
    • B60R16/0207—Wire harnesses
    • B60R16/0215—Protecting, fastening and routing means 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/0013—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor using fillers dispersed in the moulding material, e.g. metal particles
    • 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
    • B29K2009/00—Use of rubber derived from conjugated dienes, as moulding material
    • B29K2009/06—SB polymers, i.e. butadiene-styrene polymers
    • 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
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
    • B29K2023/10—Polymers of propylene
    • B29K2023/12—PP, i.e. polypropylene
    • 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
    • B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
    • 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
    • B29K2309/00—Use of inorganic materials not provided for in groups B29K2303/00 - B29K2307/00, as reinforcement
    • B29K2309/08—Glass
    • 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
    • B29L2031/26—Sealing devices, e.g. packaging for pistons or pipe joints
    • 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
    • B29L2031/703—Bellows

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Seal Device For Vehicle (AREA)

Abstract

The envelope includes a peripheral lip (44), and a flexible part constituted of a gusset (3), with helical coils, forming a cable grommet. The gusset is connected on panels of e.g. door, using two molded plastic inserts (43) constituting end clamps. A split U-packing (42) permits to connect the cable to the cable grommet with an adhesive tape.

Description

Enveloppe à soufflets hélicoïdaux pour protéger des câbles.Bellows envelope to protect cables.

Le domaine de l'invention est celui des pièces à soufflets utilisées en tant que gaine flexible pour protéger des câbles.  The field of the invention is that of bellows parts used as flexible sheath to protect cables.

Classiquement, les soufflets de ces enveloppes comportent des spires qui 5 s'étendent radialement, autorisant des déplacements radiaux, axiaux et angulaires du dispositif protégé.  Conventionally, the bellows of these envelopes comprise turns which extend radially, allowing radial, axial and angular displacements of the protected device.

Afin d'améliorer les performances de ces soufflets, et notamment leur durée de vie, ils sont fabriqués en élastomère thermoplastique. Ce type de matériau permet de plus d'obtenir des temps de cycle de production faibles et donc un coût modéré.  In order to improve the performance of these bellows, and in particular their service life, they are made of thermoplastic elastomer. This type of material also makes it possible to obtain low production cycle times and therefore a moderate cost.

Cependant on ne peut démouler en force les soufflets constitués de tels matériaux sans les détériorer. C'est pourquoi les enveloppes à soufflets sont généralement réalisées par un procédé d'extrusion soufflage ou d'injection soufflage où il n'y a pas de problème de démoulage. Ces procédés s'avèrent coûteux et ne permettent pas d'obtenir une qualité de production satisfaisant les exigences actuelles, car l'épaisseur des parois n'est pas maîtrisée avec suffisamment de précision.  However, the bellows made of such materials can not be demolded in force without damaging them. This is why gusseted envelopes are generally made by a process of extrusion blow molding or injection blow molding where there is no demolding problem. These methods are expensive and do not provide a production quality that meets the current requirements, because the thickness of the walls is not controlled with sufficient precision.

Une autre solution a donc été proposée, consistant à réaliser les enveloppes à soufflet par injection.  Another solution has therefore been proposed, consisting in producing bellows envelopes by injection.

L'épaisseur est ainsi garantie par l'empreinte et le noyau du moule de la pièce.  The thickness is thus guaranteed by the cavity and the core of the mold of the piece.

Cependant, leur démoulage nécessite de les déformer, notamment en les gonflant avec de l'air comprimé afin de dégager les spires du noyau, et en les tirant du noyau (le moule ayant été ouvert au préalable).  However, their demolding requires deforming them, in particular by inflating them with compressed air in order to clear the turns of the core, and pulling them from the core (the mold having been opened beforehand).

Un tel mode de démoulage convient relativement bien aux soufflets en élastomère vulcanisé, matériau qui supporte de très grandes déformations et qui reprend bien sa forme de moulage après le démoulage.  Such demolding mode is relatively suitable for vulcanized elastomeric bellows material that supports very large deformations and that resumes its molding form after demolding.

Cependant, ce type de démoulage engendre de trop fortes sollicitations pour les élastomères thermoplastiques qui tendent à les faire céder ou à les 30 fragiliser et à altérer la durée de vie des soufflets.  However, this type of demoulding causes too much stress on the thermoplastic elastomers which tend to make them yield or to weaken them and to alter the life of the bellows.

Encore un autre procédé de fabrication d'enveloppes à soufflets présentant des soufflets radiaux avec des contres dépouilles importantes a été proposé dans l'art antérieur.  Yet another method of manufacturing gusseted envelopes having radial gussets with substantial undercuts has been proposed in the prior art.

Ce processus consiste à mouler les pièces par injection mono ou multi empreintes, puis à démouler les parties en forme de soufflet par le dévissage relatif du noyau par rapport à la pièce.  This process consists in molding the parts by single or multi-cavity injection, then demolding the bellows-shaped parts by the relative unscrewing of the core relative to the part.

Ce nouveau mode de fabrication des soufflets implique d'avoir une forme toute particulière des soufflets. En effet les spires sont hélicoïdales afin d'autoriser le dévissage du noyau ou de la pièce.  This new method of manufacturing bellows involves having a particular form of bellows. Indeed the turns are helical to allow the unscrewing of the core or the part.

L'invention a notamment pour objectif de pallier les inconvénients de l'art antérieur.  The invention particularly aims to overcome the disadvantages of the prior art.

L'invention a pour objet une enveloppe présentant au moins un soufflet hélicoïdal.  The invention relates to an envelope having at least one helical bellows.

L'invention s'applique aux passe-gaine, destinés à protéger les câbles qui vont dans les portières (ou hayon) de véhicule et en assure l'étanchéité.  The invention applies to sheaths, intended to protect the cables that go into the doors (or tailgate) of the vehicle and ensures tightness.

Un tel passe-gaine est fixé à chacune de ses extrémités. Un câble le traverse de différents diamètres selon les modèles. Il suit les mouvements d'ouverture et de fermeture des portières et subit ainsi des flexions importantes.  Such a sheath is fixed at each of its ends. A cable crosses it of different diameters according to the models. It follows the opening and closing movements of the doors and undergoes significant bending.

La figure 1 est une vue en perspective d'une enveloppe à soufflets selon l'invention.  Figure 1 is a perspective view of a bellows envelope according to the invention.

La partie flexible est constituée d'un soufflet à spires hélicoïdales, 3, en élastomère thermoplastique, tel qu'un SEBS éthylène / butylène / styrène. Le soufflet est relié sur les panneaux (portière, châssis) à l'aide de préférence d'inserts en plastique 43 tel un PP (polypropylène) renforcé de fibres de verre, constituant des clips de fixation à moindre coût. Le soufflet peut comporter un ou deux inserts qui sont soudés, collés ou surmoulés. Une lèvre périphérique 44 assure l'étanchéité de la fixation. Une manchette fendue 42, permet de protéger les câbles qui traversent le passe-câble, à l'intérieur de la structure (portière, châssis) ou pour assurer une bonne prise de rayon et permet de lier les câbles au passe-câble avec un ruban adhésif par exemple.  The flexible part consists of a bellows with helical turns, 3, of thermoplastic elastomer, such as an SEBS ethylene / butylene / styrene. The bellows is connected to the panels (door, frame) preferably using plastic inserts 43 such as a PP (polypropylene) reinforced with glass fibers, constituting fasteners at lower cost. The bellows may have one or two inserts that are welded, glued or overmolded. A peripheral lip 44 seals the fastener. A split sleeve 42, protects the cables that pass through the grommet, inside the structure (door, frame) or to ensure a good radius and allows to bind the cables to the cable gland with a ribbon adhesive for example.

Claims (1)

3 REVENDICATIONS3 claims 1. Passe câble pour protéger les câbles de portières ou hayons de véhicules, caractérisé en ce qu'il comporte une partie flexible (3) en élastomère thermoplastique et deux inserts (43) en polypropylène renforcé de fibres de verre, surmoulés.  1. A cable for protecting the door or tailgate cables of vehicles, characterized in that it comprises a flexible portion (3) of thermoplastic elastomer and two inserts (43) of polypropylene reinforced with glass fibers, overmolded.
FR0511033A 2004-11-03 2005-10-27 Gusset envelope for e.g. vehicle door cable, has peripheral lip, and split U-packing to connect cable to helical gusset, forming cable grommet, with adhesive tape, where gusset is bound to panels by plastic inserts constituting end clamps Withdrawn FR2881702A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FR0511020A FR2883109A1 (en) 2004-11-03 2005-10-27 Electric cable protector with clip-together components has supple sleeve and rigid fixings moulded in one piece from elastomer and rigid thermoplastics
FR0511033A FR2881702A1 (en) 2005-10-27 2005-10-27 Gusset envelope for e.g. vehicle door cable, has peripheral lip, and split U-packing to connect cable to helical gusset, forming cable grommet, with adhesive tape, where gusset is bound to panels by plastic inserts constituting end clamps
PCT/IB2005/003277 WO2006048737A2 (en) 2004-11-03 2005-11-03 Connecting device with snap-on fastening for the passage and protection of electric cables or the like, and method for the production thereof
EP05805374A EP1807917A2 (en) 2004-11-03 2005-11-03 Connecting defice with snap-on fastening for the passage and protection of electric cables or the like, and method for the production thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0511033A FR2881702A1 (en) 2005-10-27 2005-10-27 Gusset envelope for e.g. vehicle door cable, has peripheral lip, and split U-packing to connect cable to helical gusset, forming cable grommet, with adhesive tape, where gusset is bound to panels by plastic inserts constituting end clamps

Publications (1)

Publication Number Publication Date
FR2881702A1 true FR2881702A1 (en) 2006-08-11

Family

ID=36698634

Family Applications (1)

Application Number Title Priority Date Filing Date
FR0511033A Withdrawn FR2881702A1 (en) 2004-11-03 2005-10-27 Gusset envelope for e.g. vehicle door cable, has peripheral lip, and split U-packing to connect cable to helical gusset, forming cable grommet, with adhesive tape, where gusset is bound to panels by plastic inserts constituting end clamps

Country Status (1)

Country Link
FR (1) FR2881702A1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2149469A (en) * 1983-11-10 1985-06-12 Ford Motor Co Sealing grommet for leads passing through bodywork openings
FR2730785A1 (en) * 1995-02-17 1996-08-23 Peugeot Protective rubber sleeve for electrical cable or conduit
EP1158637A1 (en) * 2000-05-25 2001-11-28 Yazaki Corporation Grommet and method of producing the same
EP1193132A2 (en) * 2000-09-28 2002-04-03 WOCO Franz-Josef Wolf & Co. Wire harness grommet and vehicle using the same on the hinge side of a door

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2149469A (en) * 1983-11-10 1985-06-12 Ford Motor Co Sealing grommet for leads passing through bodywork openings
FR2730785A1 (en) * 1995-02-17 1996-08-23 Peugeot Protective rubber sleeve for electrical cable or conduit
EP1158637A1 (en) * 2000-05-25 2001-11-28 Yazaki Corporation Grommet and method of producing the same
EP1193132A2 (en) * 2000-09-28 2002-04-03 WOCO Franz-Josef Wolf & Co. Wire harness grommet and vehicle using the same on the hinge side of a door

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