EP1735206A1 - Procede pour obturer de maniere durable des trous, en particulier des trous dans des toles ou des pieces en plastique de carrosseries de vehicules automobiles - Google Patents

Procede pour obturer de maniere durable des trous, en particulier des trous dans des toles ou des pieces en plastique de carrosseries de vehicules automobiles

Info

Publication number
EP1735206A1
EP1735206A1 EP05747794A EP05747794A EP1735206A1 EP 1735206 A1 EP1735206 A1 EP 1735206A1 EP 05747794 A EP05747794 A EP 05747794A EP 05747794 A EP05747794 A EP 05747794A EP 1735206 A1 EP1735206 A1 EP 1735206A1
Authority
EP
European Patent Office
Prior art keywords
hole
die
adhesive
foam body
cut
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Withdrawn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
EP05747794A
Other languages
German (de)
English (en)
Inventor
Bernd Höwe
Frank Kolmorgen
Patrick Gehringer
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.)
Tesa SE
Original Assignee
Tesa SE
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 Tesa SE filed Critical Tesa SE
Publication of EP1735206A1 publication Critical patent/EP1735206A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
    • B62D25/24—Superstructure sub-units with access or drainage openings having movable or removable closures; Sealing 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
    • 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
    • B29C44/188—Sealing off parts of the cavities
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
    • B60R13/08—Insulating elements, e.g. for sound insulation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
    • B60R13/08—Insulating elements, e.g. for sound insulation
    • B60R13/0892—Insulating elements, e.g. for sound insulation for humidity insulation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00—Adhesives in the form of films or foils
    • C09J7/20—Adhesives in the form of films or foils characterised by their carriers
    • C09J7/21—Paper; Textile fabrics
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
    • B60R13/08—Insulating elements, e.g. for sound insulation
    • B60R13/0846—Insulating elements, e.g. for sound insulation for duct, cable or rod passages, e.g. between engine and passenger compartments
    • B60R13/0853—Insulating elements, e.g. for sound insulation for duct, cable or rod passages, e.g. between engine and passenger compartments specially adapted for movable parts, e.g. gears levers, pedals
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2301/00—Additional features of adhesives in the form of films or foils
    • C09J2301/10—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet
    • C09J2301/12—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers
    • C09J2301/122—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers the adhesive layer being present only on one side of the carrier, e.g. single-sided adhesive tape
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2400/00—Presence of inorganic and organic materials
    • C09J2400/20—Presence of organic materials
    • C09J2400/26—Presence of textile or fabric
    • C09J2400/263—Presence of textile or fabric in the substrate
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2407/00—Presence of natural rubber

Definitions

  • the present invention relates to a method for permanently closing holes, in particular in metal sheets or in plastic parts of automobile bodies.
  • holes of different sizes are created in many individual parts such as sheet metal or plastic during construction.
  • the diameter of the holes is usually between 10 and 50 mm.
  • many of these holes have to be sealed airtight and in particular watertight in order to prevent corrosion attacks by water or steam penetrating into the body through the uncovered holes.
  • plastic plugs are generally used to close body holes, which on the one hand do not securely close the hole in the individual case and on the other hand are comparatively complex and expensive to produce.
  • a special plug adapted to the hole size is required. This means a high logistical and administrative effort for the recipient of the plugs.
  • the object of the present invention is to provide a method which is suitable for permanently closing holes, in particular in metal sheets or in plastic parts of automobile bodies. Furthermore, it should be ensured that said holes are closed in such a way that moisture cannot pass through them, noise insulation is improved, and the holes are securely closed even in the event of stone chipping on the sub-floor or in the case of mechanical stresses in the interior, in particular in the floor area.
  • the invention relates to a method for permanently closing holes, in particular in sheet metal or in plastic parts of automobile bodies, by • an at least partially self-adhesive die-cut with a textile carrier in particular, the area of which is larger than the area of the hole to be closed, and in particular in the center is provided on the adhesive-equipped side with a non-foamed foam body, is fixed on the hole in such a way that the hole is completely covered by the die-cut and the foam body is located within the hole, • the die-cut with the foam body is heated in such a way that the foam body foams, • the heat is applied until the foamed foam body completely fills and / or covers the hole, • the foamed foam body cools and hardens.
  • the diecut is provided with adhesive over the entire area below the foam body.
  • the non-foamed foam body consists of polyurethane or particularly preferably of an EVA foam and / or has a thickness of 1.5 to 4 mm.
  • the vinyl acetate content in the EVA is advantageously about 5 to 20% by weight.
  • the EVA is extruded into a matrix and already contains a blowing agent before the punching process takes place in the shape of the foam body.
  • a typical size for the non-foamed foam body, with which many of the smaller holes can be closed, is a disk with a diameter of 10 to 30 mm, in particular 10 mm, which also has a thickness of 3 mm.
  • the carrier of the die-cut is provided with an adhesive coating made of natural rubber and / or on the side opposite the adhesive with a PVC or acrylic coating.
  • the adhesive force on steel is at least 5 N / 25 mm.
  • the carrier which in an advantageous development of the invention consists of an aluminum foil, a textile carrier or a plastic foil (for example PVC, PP, PET, PU), preferably has a thickness • between 30 and 120 ⁇ m for the aluminum foil, • between 180 and 300 ⁇ m for a textile backing and • between 30 and 300 ⁇ m for a film.
  • cotton fabric is used as the carrier material for the die-cut, which in particular has a mesh number of
  • the number of shots is 70 to 80 and / or the number of chains is 70 to
  • nonwoven fabrics such as woven fabrics, knitted fabrics or nonwovens can be used as the carrier material for the die-cut, wherein “nonwoven” is to be understood as meaning at least textile fabrics according to EN 29092 (1988), as well as stitch-bonded nonwovens and similar systems.
  • Spacer fabrics and knitted fabrics with lamination can also be used. Spacer fabrics of this type are disclosed in EP 0 071 212 B1. Spacer fabrics are mat-shaped laminated bodies with a cover layer made of a fiber or filament fleece, an underlay layer and individual or tufts of holding fibers present between these layers, which are needled distributed over the surface of the laminate body and connect the cover layer and the underlay layer to one another. According to EP 0 071 212 B1, particles of inert rock particles, such as sand, gravel or the like, are present in the holding fibers as an additional but not necessary feature. The holding fibers needled through the particle layer keep the cover layer and the underlay layer at a distance from one another and they are connected to the cover layer and the underlay layer.
  • nonwovens are staple fiber nonwovens, but also filament, meltblown and spunbonded nonwovens, which usually have to be additionally consolidated.
  • Mechanical, thermal and chemical bonding are known as possible bonding methods for nonwovens. If the fibers in mechanical strengthening are mostly held together mechanically by swirling the individual fibers, by meshing fiber bundles or by sewing in additional threads, adhesive methods (with binding agents) can be used by thermal and chemical processes. or achieve cohesive (binder-free) fiber-fiber bonds. With a suitable formulation and process control, these can be limited exclusively or at least predominantly to fiber nodes, so that a stable, three-dimensional network is nevertheless formed in the fleece while maintaining the loose, open structure.
  • Nonwovens have proven to be particularly advantageous, in particular they are consolidated by sewing on with separate threads or by stitching.
  • Such consolidated nonwovens are produced, for example, on sewing-knitting machines of the "Malivlies" type from Karl Meyer, formerly Malimo, and can be obtained from Naue Fasertechnik and Techtex GmbH, among others.
  • a Malivlies is characterized in that a cross-fiber fleece is formed by the formation of stitches Fibers of the nonwoven are consolidated.
  • a Kunitviies or multiknit nonwoven can also be used as a carrier.
  • a Kunitviies is characterized in that it results from the processing of a longitudinally oriented nonwoven into a flat structure that has stitches on one side and meshes on the other Has mesh webs or poly fiber folds, but has neither threads nor prefabricated flat structures.
  • Such a fleece has also been produced for a long time, for example, on sewing-knitting machines of the "Kunitviies” type from Karl Mayer. Another characteristic feature of this fleece is that it can absorb high tensile forces in the longitudinal direction as a longitudinal fiber fleece.
  • a multi-knit fleece is distinguished from the Kunitviies in that the fleece is strengthened by both-sided piercing with needles on both the top and the bottom.
  • Nahviiese are also suitable as a preliminary product to form a diecut to be used according to the invention.
  • a sewing fleece is formed from a fleece material with a plurality of seams running parallel to one another. These seams are created by sewing or sewing continuous textile threads. Sewing-knitting machines of the "Maliwatt" type from Karl Mayer, formerly Malimo, are known for this type of fleece.
  • polyester, polypropylene, viscose, rayon or cotton fibers are provided as starting materials for the textile backing.
  • the present invention is not limited to the materials mentioned, but can, for A person skilled in the art recognizes that a large number of additional fibers are used to produce the nonwoven without having to act according to the invention.
  • a fogging-free die-cut comprising a fogging-free carrier onto which a fogging-free, pressure-sensitive adhesive is applied at least on one side, is particularly advantageous for the inventive idea.
  • various polymer systems can be selected as adhesives, natural or synthetic rubber and acrylate systems in particular having proven to be advantageous if their adhesive properties and temperature resistance meet the requirements.
  • An adhesive based on an acrylate hotmelt is suitable which has a K value of at least 20, in particular greater than 30 (measured in each case in a 1% strength by weight solution in toluene, 25 ° C.), obtainable by concentrating a solution of such Mass to a system that can be processed as a hot melt.
  • Concentration can take place in suitably equipped kettles or extruders, particularly in the case of the associated degassing, a degassing extruder is preferred.
  • the K value is determined in particular in analogy to DIN 53 726.
  • an adhesive which consists of the group of natural rubbers or synthetic rubbers or of any blend of natural rubbers and / or synthetic rubbers, the natural rubber or natural rubbers basically having all available qualities such as crepe, RSS, ADS -, TSR or CV types, depending on the required level of purity and viscosity, and the synthetic rubber or synthetic rubbers from the group of randomly copolymerized styrene-butadiene rubbers (SBR), butadiene rubbers (BR), synthetic polyisoprene ( IR), the butyl rubbers (IIR), the halogenated butyl Rubbers (XIIR), acrylate rubbers (ACM), ethylene-vinyl acetate copolymers (EVA) and polyurethanes and / or their blends can be selected.
  • SBR randomly copolymerized styrene-butadiene rubbers
  • BR butadiene rubbers
  • IR synthetic polyisoprene
  • IIR butyl rubbers
  • thermoplastic elastomers with a weight fraction of 10 to 50% by weight to the rubbers to improve the processability, based on the total elastomer fraction.
  • SIS styrene-isoprene-styrene
  • SBS styrene-butadiene-styrene
  • the die-cut is preferably foamed by supplying heat during the customary painting process of the body-in-white, in particular during the painting or KTL drying. In this way, no additional work step is required. Due to the required heating of the body during said drying processes, there is sufficient energy to foam the foam body. Alternatively, foaming is possible by local energy supply using heat or infrared radiators.
  • the method according to the invention is superior to the solutions known from the prior art, especially in the case of increased mechanical stress. The same applies when considering noise reduction.
  • a single embodiment of the die cut can cover a multiplicity of holes of different sizes.
  • the method for permanently closing holes in particular in sheet metal or in plastic parts of automobile bodies, is to be explained in more detail with reference to two figures, without being intended to have any restrictive effect.
  • Figure 2 shows the state after the hole is closed by foaming the die cut.
  • a hole 2 is present in the body 1 for constructional reasons and must be closed.
  • a die-cut part which is partially self-adhesive on one side, is fixed on the hole 2 with a textile carrier 4, the area of which is larger than the area of the hole 2 to be closed, in such a way that the hole 2 is completely covered by the die-cut part.
  • the non-foamed EVA foam body 5 is located in the center of the die-cut, specifically on the adhesive-finished side. This EVA foam body 5 is arranged centrally within the hole 2.
  • the adhesive 3 is applied over the entire surface of the diecut, and the area below the EVA foam body 5 is also coated.
  • the EVA foam body 5 By heating the EVA foam body 5 to preferably 160 ° C., it foams, which leads to a considerable spatial expansion of the same.
  • the EVA foam body 5 is foamed by supplying heat during the customary painting process of the body-in-white, in particular during the painting or KTL drying.
  • the EVA foam body 5 foams, so that the hole 2 is completely filled by the foamed EVA foam body 6 and thus covered becomes. After cooling, the foamed EVA foam body 6 hardens and in this way closes off the hole 2 in an airtight, watertight and noise-absorbing manner.
  • Figure 2 shows the state after heat has been applied to the diecut.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Organic Chemistry (AREA)
  • Textile Engineering (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Body Structure For Vehicles (AREA)

Abstract

L'invention concerne un procédé pour obturer de manière durable des trous, en particulier des trous dans des tôles ou des pièces en plastique de carrosseries de véhicules automobiles. Le procédé selon l'invention est caractérisé en ce que l'on utilise un article estampé qui est au moins partiellement autoadhésif sur une face, et qui comprend un support, en particulier un support textile, dont la surface est supérieure à la surface du trou à obturer, et qui comporte en particulier un corps alvéolaire non expansé au centre de la face adhésive. L'article estampé est fixé sur le trou de manière à le recouvrir entièrement, et de façon que le corps alvéolaire repose à l'intérieur du trou. L'article estampé et le corps alvéolaire sont chauffés de manière à engendrer l'expansion du corps alvéolaire. De la chaleur est fournie jusqu'à ce que le corps ainsi expansé remplisse et/ou recouvre entièrement le trou. Puis, le corps alvéolaire expansé refroidit et se durcit.
EP05747794A 2004-04-08 2005-03-11 Procede pour obturer de maniere durable des trous, en particulier des trous dans des toles ou des pieces en plastique de carrosseries de vehicules automobiles Withdrawn EP1735206A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004018047A DE102004018047A1 (de) 2004-04-08 2004-04-08 Verfahren zum dauerhaften Verschließen von Löchern insbesondere in Blechen oder in Kunststoffteilen von Automobilkarosserien
PCT/EP2005/051101 WO2005097582A1 (fr) 2004-04-08 2005-03-11 Procede pour obturer de maniere durable des trous, en particulier des trous dans des toles ou des pieces en plastique de carrosseries de vehicules automobiles

Publications (1)

Publication Number Publication Date
EP1735206A1 true EP1735206A1 (fr) 2006-12-27

Family

ID=34968453

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05747794A Withdrawn EP1735206A1 (fr) 2004-04-08 2005-03-11 Procede pour obturer de maniere durable des trous, en particulier des trous dans des toles ou des pieces en plastique de carrosseries de vehicules automobiles

Country Status (8)

Country Link
US (1) US20080029919A1 (fr)
EP (1) EP1735206A1 (fr)
JP (1) JP2007532382A (fr)
KR (1) KR20070012463A (fr)
CN (1) CN100500498C (fr)
DE (1) DE102004018047A1 (fr)
MX (1) MXPA06011298A (fr)
WO (1) WO2005097582A1 (fr)

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DE102004055324A1 (de) * 2004-11-16 2006-05-18 Tesa Ag Stanzling zum dauerhaften Verschließen von Löchern insbesondere in Blechen oder in Kunstoffteilen von Automobilkarosserien
DE102006038322A1 (de) * 2006-08-15 2008-02-21 Tesa Ag Stanzling insbesondere zum dauerhaften Verschließen von Löchern
US8246872B2 (en) * 2008-12-22 2012-08-21 The Gates Corporation Method for making composite article with expandable elastomer in compression
KR101355701B1 (ko) * 2012-06-22 2014-01-28 지엠 글로벌 테크놀러지 오퍼레이션스 엘엘씨 후드 판넬 및 후드 판넬의 전착 및 밀봉 방법
DE102013216782A1 (de) 2013-08-23 2015-02-26 Tesa Se Stanzling insbesondere zum dauerhaften Verschließen von Löchern
DE102013216778A1 (de) 2013-08-23 2015-02-26 Tesa Se Stanzling insbesondere zum dauerhaften Verschließen von Löchern
CN107257832B (zh) * 2015-02-23 2020-07-14 德莎欧洲股份公司 桥带以及用于密封机动车体的塑料部件或金属板中的孔的方法
US20160271926A1 (en) 2015-03-16 2016-09-22 Thunder Power Hong Kong Ltd. Fastening method for components
US9550406B2 (en) 2015-03-16 2017-01-24 Thunder Power Hong Kong Ltd. Thermal dissipation system of an electric vehicle
US10480656B2 (en) * 2016-08-22 2019-11-19 Tesa Se Bridge tape with directed foam expansion and method for sealing holes in sheet metal or plastic parts of automobile bodies
DE102017217799A1 (de) 2017-10-06 2019-04-11 Tesa Se Stanzling, insbesondere zum temporären Verschließen von Löchern
DE102018207850B4 (de) * 2018-05-18 2020-06-18 Tesa Se Stanzling zum dauerhaften Verschließen von Löchern
DE102019101494B4 (de) 2019-01-22 2021-03-25 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Montagehilfsmittel, Verwendung eines Montagehilfsmittels und Karosserieteil mit Montagehilfsmittel
DE102021208046A1 (de) * 2021-07-26 2023-01-26 Tesa Se Stanzling insbesondere zum dauerhaften Verschließen von Löchern

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Also Published As

Publication number Publication date
JP2007532382A (ja) 2007-11-15
CN100500498C (zh) 2009-06-17
MXPA06011298A (es) 2007-01-16
KR20070012463A (ko) 2007-01-25
DE102004018047A1 (de) 2005-11-10
CN1938187A (zh) 2007-03-28
WO2005097582A1 (fr) 2005-10-20
US20080029919A1 (en) 2008-02-07

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