WO2003104043A1 - Piece d'equipement interieur pour automobile, notamment tableau de bord - Google Patents

Piece d'equipement interieur pour automobile, notamment tableau de bord Download PDF

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Publication number
WO2003104043A1
WO2003104043A1 PCT/EP2003/005522 EP0305522W WO03104043A1 WO 2003104043 A1 WO2003104043 A1 WO 2003104043A1 EP 0305522 W EP0305522 W EP 0305522W WO 03104043 A1 WO03104043 A1 WO 03104043A1
Authority
WO
WIPO (PCT)
Prior art keywords
interior
built
carrier
bulge
part according
Prior art date
Application number
PCT/EP2003/005522
Other languages
German (de)
English (en)
Inventor
Bernd Bechheim
Original Assignee
Johnson Controls Interiors Gmbh & Co. Kg
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 Johnson Controls Interiors Gmbh & Co. Kg filed Critical Johnson Controls Interiors Gmbh & Co. Kg
Publication of WO2003104043A1 publication Critical patent/WO2003104043A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/20—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components
    • B60R21/215—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components characterised by the covers for the inflatable member
    • B60R21/2165—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components characterised by the covers for the inflatable member characterised by a tear line for defining a deployment opening
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/20—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components
    • B60R21/205—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components in dashboards
    • 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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
    • B29C44/12—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements
    • B29C44/18—Filling preformed cavities
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R2021/161—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by additional means for controlling deployment trajectory
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/20—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components
    • B60R21/217—Inflation fluid source retainers, e.g. reaction canisters; Connection of bags, covers, diffusers or inflation fluid sources therewith or together
    • B60R2021/2172—Inflation fluid source retainers, e.g. reaction canisters; Connection of bags, covers, diffusers or inflation fluid sources therewith or together the cover being connected to the surrounding part and to the module, e.g. floating mounts

Definitions

  • the invention relates to an interior trim part for a motor vehicle, in particular a dashboard, with a rigid support provided with a decorative layer on the interior side, which has an airbag module located in the area of the front passenger seat and arranged in a guide shaft of the interior trim part, which is closed to the vehicle interior by means of a cover , the cover being designed as a separately manufactured built-in part which can be fixed in a recess in the carrier, and a method for its production.
  • a generic interior part in the form of a dashboard is known from published patent application DE 199 13 041 A1.
  • the dashboard disclosed there consists of a carrier with a horizontal support tube running transversely to the direction of travel, which has in its area assigned to the front passenger seat a shaft-like hollow body which extends forward from the seat-side surface of the dashboard.
  • an airbag module is arranged, which with the Support tube is connected and from which an airbag is deployed through the shaft to the seat occupant in the event of a crash.
  • the opening of the shaft is closed by a separately made decorative strip, which is released from the recess in the carrier when the airbag is deployed.
  • Tether straps or an articulated connection of the decorative strip to the dashboard prevent injury to the vehicle occupants by flying components.
  • This known dashboard has the disadvantage that the shaft has to be manufactured and assembled separately. Furthermore, the freedom of design is limited by the trim strip arranged in the visible area.
  • an interior trim part for a motor vehicle which has a predetermined breaking point, which is invisible to the vehicle occupant, and which runs around on the inside for an airbag flap which is integrally formed on the carrier.
  • Such deliberate weakenings of the carrier are generally known and can be brought about, for example, by a linear weakening of the carrier wall or by lining up blind holes produced on the inside of the carrier by means of a laser.
  • safety devices are generally inevitable in these systems, and the creation of the predetermined breaking point may require an additional step.
  • the firing channel and the holding frame for the airbag module must also be made as separate components that increase the weight of the interior trim part. task
  • the object of the invention is to reduce the costs for producing an interior fitting part provided with an airbag module, in particular an instrument panel, and to reduce the weight of such a component.
  • parts of the dashboard should be avoided (particularly at low temperatures) when the airbag is deployed and the vehicle occupants are endangered.
  • the built-in part has a predetermined breaking point for forming at least one airbag outlet flap.
  • the built-in part thus remains connected to the carrier when the airbag is deployed and forms the airbag outlet cover with part of its planar extent.
  • the material for the built-in part can be selected so that it has optimal properties for the generation of the predetermined breaking point and with regard to the behavior when the airbag is triggered.
  • a substantially H-shaped or U-shaped course of the predetermined breaking point is particularly favorable, which is advantageously designed as a linear, in particular embossed, reduction in the wall thickness of the built-in part.
  • the built-in part preferably consists of a fiber-reinforced thermoplastic, in particular with a fiber reinforcement, which Long glass fibers included.
  • the long fibers can act as a joint for the airbag outlet cover, so that additional safety measures can be dispensed with.
  • Polypropylene or copolymers containing polypropylene are particularly suitable as the thermoplastic.
  • the built-in part is embedded on the edge directly in the material of the carrier and is held there in a form-fitting and / or integral manner.
  • the closure can be formed by a cover which can be placed on the bulge, but alternatively or additionally, it can also be produced by completely or partially filling the bulge, in particular with a polyurethane foam material.
  • a two-layer design of the built-in part is also advantageous, the position facing away from the vehicle interior being the bulge and the interior facing side forms the closure.
  • a gas and / or foam can preferably be injected between the first and the second layer in the region of the bulge, as a result of which the layer facing away from the vehicle interior is deformed to form the bulge.
  • a further reduction in the number of components can be brought about in that the collar-like projection has fastening means for fixing the airbag module. These are preferably arranged essentially in the area of the collar-shaped projection furthest from the interior.
  • a foam layer in particular made of a crosslinked polyurethane foam, is arranged between the decorative layer on the one hand and the carrier or the built-in part on the other.
  • a method according to the invention for producing an interior trim part of a motor vehicle, in particular a dashboard is characterized in that in a first work step an installation part provided with a predetermined breaking point is produced.
  • the predetermined breaking point can, for example, be embossed into the built-in part, milled or created by lining up holes.
  • the built-in part is then inserted into the carrier tool and embedded in the material of the carrier during its manufacture. Subsequently, the carrier and built-in part are covered with a decorative layer at least in some areas.
  • the built-in part can be produced by first cutting a plate-shaped semi-finished product and then reshaping it in particular by pressing or deep drawing. On the one hand, an adaptation to the shape of the carrier, but also the formation of the collar-like bulge is required. feasible. Finally, the formed semi-finished product is cut to its final dimensions, possibly in conjunction with punched-out areas in the edge area, which are used for positive embedding in the carrier material, and is now prepared for insertion into the carrier tool.
  • Bulges of the built-in part are preferably closed before it is inserted into the carrier tool so that the carrier forms a continuous surface from the vehicle interior view.
  • a lid can be placed on the bulge, but alternatively or additionally, the bulge can be completely or partially filled with a foam, in particular a polyurethane foam.
  • the built-in part can be produced by cutting two substantially congruent plate-shaped semi-finished products and then reshaping, in particular pressing, to form a two-layer component. After inserting this component into a mold, gas and / or foam is injected in some areas into the separating layer between the two layers, bulging outward into the layer remote from the interior. Finally, the formed component is cut to the final dimension of the installation part.
  • a foam layer in particular made of a polyurethane foam, is preferably introduced between the decorative layer on the one hand and the carrier or built-in part on the other hand.
  • the airbag module can then be fastened, in particular screwed, to the built-in part.
  • Fig. 1 shows an interior trim part in the form of a dashboard according to a first embodiment of the invention in section
  • Fig. 2 shows another dashboard designed according to the invention
  • the dashboard shown in Fig. 1 consists of a carrier 1, which can be produced, for example, by injection molding, a vehicle interior-side decorative layer 2 and a foam layer 3 introduced between the carrier 1 and decorative layer 2.
  • the carrier 1 is on its side facing the passenger with a Provide recess 4, which is closed by means of an installation part 5.
  • the built-in part 5 has a collar-like, circumferential projection 7, which points away from the vehicle interior 6 and is produced by a bulge in the built-in part 5.
  • Decorative layer 2 and foam layer 3 completely hide the built-in part 5, an annular cover 9 inserted in the area of the bulge 8 covering the bulge 8 to form a cavity 10 and preventing the foam layer 3 from penetrating into the cavity 10.
  • carrier 1, cover 9 and built-in part 5 form a continuous surface again from the vehicle interior 6.
  • the Form-locking can be brought about through holes 13 made in the mounting part, which are penetrated by the material of the carrier 1.
  • the collar-shaped projection 7 partially surrounds an airbag module 14 arranged below the installation part 5 in the dashboard, forming a guide shaft 15 for the unfolding, invisible airbag.
  • the horizontally transverse to the direction of travel (Y-axis of the vehicle) hinge regions 19 ', 19 "between the leg ends of the H-shaped predetermined breaking point 17 serve as joints around which the airbag outlet flaps 18', 18" pivot towards the windshield or downwards.
  • the reinforcement by long fibers prevents the airbag outlet flaps 18 ′, 18 ′′ from being completely detached from the built-in part 5, so that further securing measures such as tether straps or hinge plates are unnecessary.
  • the hinge regions 19 ′, 19 ′′ can likewise have a slight weakening, preferably produced by embossing without destroying the long fibers, in order to clearly determine the course of the joint.
  • a single airbag flap would be formed when triggered, which preferably folds away from the vehicle occupant to the windshield around a hinge region that runs horizontally in the upper region of the built-in part.
  • the built-in part 5 is made in two layers, both the layer 20 on the interior side and the layer 21 facing away from the interior 6 being made of long-fiber-reinforced thermoplastic.
  • the installation part 5 is inserted into a molding tool, the cavity of which the contour of the bulge 8 having.
  • the cavity 10 is additionally filled with a filling foam 11 to increase the component strength.
  • the local loosening of the layers 20 and 21 can be facilitated in that a release agent is applied in the relevant annular area during the previous pressing of the two layers 20, 21.
  • the predetermined breaking point 17 is also formed by an H-shaped notch 16, of which only the middle, horizontally running line is visible in the section according to FIG. 2.
  • two airbag outlet flaps 18 ′, 18 ′′ again arise, of which the lower airbag outlet flap 18 ′ around the hinge region 19 ′ toward the vehicle occupant, and the upper airbag outlet flap 18 ′′ around the hinge region 19 ′′ from the vehicle occupant swings away towards the windshield.
  • the projection 8 is provided with fastening means 22 in the form of screws 24 embedded in the material of the built-in part 5 (only shown in detail on the right in FIG. 1), to which the airbag module 14 is releasably anchored by means of nuts 23.
  • the airbag module 14 is provided with angled fastening tabs 25 which are penetrated by the screws 24.
  • the attachment takes place approximately in the area of the bulge 8, which is furthest from the interior surface of the dashboard and is approximately parallel to it, but at right angles to the side walls of the guide shaft.
  • the airbag module 14 can therefore be inserted from below into the guide shaft 15 and screwed to the mounting part 5 in the same direction without any problems.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Air Bags (AREA)

Abstract

La présente invention concerne une pièce d'équipement intérieur pour une automobile, notamment un tableau de bord, qui comprend un support rigide (1) présentant une couche décorative (2) côté intérieur et un module d'airbag (14) situé dans la zone du siège passager, dans une cavité de guidage (15) de la pièce d'équipement intérieur. Cette cavité de guidage est close en direction de l'intérieur du véhicule (6) à l'aide d'un cache qui est conçu sous forme de pièce encastrée (5) produite séparément, pouvant être fixée dans un creux (4) du support. Selon cette invention, la pièce encastrée (5) présente un point de rupture (17) conçu pour former au moins un clapet de sortie d'airbag (18). Ladite pièce encastrée (5) présente de préférence une partie en saillie (7) de type collet, qui s'éloigne de l'intérieur du véhicule (6) et qui entoure le module d'airbag (14) au moins dans la zone de sortie d'airbag. Des systèmes de fixation (22) permettent de fixer le module d'airbag (14) à cette partie en saillie.
PCT/EP2003/005522 2002-06-11 2003-05-27 Piece d'equipement interieur pour automobile, notamment tableau de bord WO2003104043A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2002125813 DE10225813B4 (de) 2002-06-11 2002-06-11 Innenausstattungsteil für ein Kraftfahrzeug, insbesondere Armaturentafel
DE10225813.9 2002-06-11

Publications (1)

Publication Number Publication Date
WO2003104043A1 true WO2003104043A1 (fr) 2003-12-18

Family

ID=29723115

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2003/005522 WO2003104043A1 (fr) 2002-06-11 2003-05-27 Piece d'equipement interieur pour automobile, notamment tableau de bord

Country Status (2)

Country Link
DE (1) DE10225813B4 (fr)
WO (1) WO2003104043A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2439011A (en) * 2004-05-27 2007-12-12 Nihon Plast Co Ltd A cover for an airbag comprising a variable thickness hinge
FR2906205A1 (fr) * 2006-09-27 2008-03-28 Faurecia Interieur Ind Snc Piece de garniture de vehicule a trappe de sac gonflable, et son procede de fabrication
EP2127959A1 (fr) * 2008-05-30 2009-12-02 Dalphi Metal Espana, S.A. Couvercle d'airbag
JP2014080140A (ja) * 2012-10-18 2014-05-08 Nippon Plast Co Ltd エアバッグ装置のカバー体

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004002478B3 (de) * 2004-01-16 2005-07-28 Lisa Dräxlmaier GmbH Flexible Airbagklappe
DE102007023075B4 (de) 2007-05-16 2016-06-02 Volkswagen Ag Kunststoff-Innenausstattungsteil aus Hartkunststoff mit einer Abdeckung für einen Airbag eines Airbag-Moduls
DE102007052973A1 (de) * 2007-11-07 2009-05-14 GM Global Technology Operations, Inc., Detroit Airbagmodul, Airbagmodulanordnung und Befestigungsverfahren
DE102012012249A1 (de) 2011-08-05 2013-02-07 Johnson Controls Interiors Gmbh & Co. Kg Fahrzeuginnenausstattung mit Austrittsklappe für einen sich entfaltenden Luftsack

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5560646A (en) * 1995-04-24 1996-10-01 Davidson Textron Air bag door arrangement
US5851023A (en) * 1995-11-27 1998-12-22 Toyoda Tosei Co., Ltd. Air bag device for passenger seat
US6109645A (en) * 1995-06-16 2000-08-29 Toyoda Gosei Co., Ltd. Interior finish member for an automobile with an air bag device and manufacturing method thereof
US6250669B1 (en) * 1998-10-13 2001-06-26 Toyota Jidosha Kabushiki Kaisha Instrument panel having integral airbag door portion
US20010026063A1 (en) * 2000-03-09 2001-10-04 Keishi Yokota Air bag device for passenger's seat

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19623579B4 (de) * 1996-06-13 2006-04-20 Adam Opel Ag Kraftfahrzeug-Armaturentafel aus Kunststoff mit einer Airbag-Abdeckung
DE19913041A1 (de) * 1999-03-23 2000-09-28 Bayerische Motoren Werke Ag Anordnung eines Airbagmoduls
DE19932327B4 (de) * 1999-07-10 2008-05-29 Adam Opel Ag Innenverkleidungsteil für ein Kraftfahrzeug
DE19958865B4 (de) * 1999-12-07 2009-11-12 Peguform Gmbh Luftsackabdeckvorrichtung sowie Einrichtung und Verfahren zur Herstellung einer Luftsackabdeckvorrichtung
DE60102096T2 (de) * 2000-04-28 2004-11-25 Inoac Corp., Nagoya Reisstruktur einer Luftsackabdeckung

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5560646A (en) * 1995-04-24 1996-10-01 Davidson Textron Air bag door arrangement
US6109645A (en) * 1995-06-16 2000-08-29 Toyoda Gosei Co., Ltd. Interior finish member for an automobile with an air bag device and manufacturing method thereof
US5851023A (en) * 1995-11-27 1998-12-22 Toyoda Tosei Co., Ltd. Air bag device for passenger seat
US6250669B1 (en) * 1998-10-13 2001-06-26 Toyota Jidosha Kabushiki Kaisha Instrument panel having integral airbag door portion
US20010026063A1 (en) * 2000-03-09 2001-10-04 Keishi Yokota Air bag device for passenger's seat

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2439011A (en) * 2004-05-27 2007-12-12 Nihon Plast Co Ltd A cover for an airbag comprising a variable thickness hinge
GB2439011B (en) * 2004-05-27 2008-08-13 Nihon Plast Co Ltd Cover of air bag apparatus and manufacturing method thereof
FR2906205A1 (fr) * 2006-09-27 2008-03-28 Faurecia Interieur Ind Snc Piece de garniture de vehicule a trappe de sac gonflable, et son procede de fabrication
WO2008037894A2 (fr) * 2006-09-27 2008-04-03 Faurecia Interieur Industrie Pièce de garniture de véhicule à trappe de sac gonflable, et son procédé de fabrication
WO2008037894A3 (fr) * 2006-09-27 2008-05-29 Faurecia Interieur Ind Pièce de garniture de véhicule à trappe de sac gonflable, et son procédé de fabrication
EP2127959A1 (fr) * 2008-05-30 2009-12-02 Dalphi Metal Espana, S.A. Couvercle d'airbag
JP2014080140A (ja) * 2012-10-18 2014-05-08 Nippon Plast Co Ltd エアバッグ装置のカバー体

Also Published As

Publication number Publication date
DE10225813B4 (de) 2010-07-29
DE10225813A1 (de) 2004-01-15

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