JP2005536663A - Multi-layer soundproofing and heat insulation parts - Google Patents

Multi-layer soundproofing and heat insulation parts Download PDF

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JP2005536663A
JP2005536663A JP2004533244A JP2004533244A JP2005536663A JP 2005536663 A JP2005536663 A JP 2005536663A JP 2004533244 A JP2004533244 A JP 2004533244A JP 2004533244 A JP2004533244 A JP 2004533244A JP 2005536663 A JP2005536663 A JP 2005536663A
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foamed plastic
plastic layer
layer
soundproofing
heat insulating
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グネーディク，クリスティアン
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カーコースティクス テック センター ゲゼルシャフト ミット ベシュレンクテル ハフツング
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/245—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it being a foam layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/06—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer characterised by a fibrous or filamentary layer mechanically connected, e.g. by needling to another layer, e.g. of fibres, of paper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2266/00—Composition of foam
    • B32B2266/02—Organic
    • B32B2266/0214—Materials belonging to B32B27/00
    • B32B2266/0285—Condensation resins of aldehydes, e.g. with phenols, ureas, melamines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2266/00—Composition of foam
    • B32B2266/06—Open cell foam
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/10—Properties of the layers or laminate having particular acoustical properties
    • B32B2307/102—Insulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/304—Insulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2605/00—Vehicles
    • B32B2605/003—Interior finishings

Landscapes

  • Laminated Bodies (AREA)
  • Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
  • Nonwoven Fabrics (AREA)
  • Thermal Insulation (AREA)

Abstract

本発明は、特に自動車用の、多層状防音・断熱部品（１）であって、少なくとも１層の三次元構造化発泡プラスチック層（２）およびそれに隣接して置かれている少なくとも１層の不織布層（３）を有し、しかも該発泡プラスチック層は複数の突出部（４）および／またはくぼみ部（５）を有する防音・断熱部品に関する。かかる絶縁部品を低重量でもってコスト効率的に製造することができるようにするために、不織布層が発泡プラスチック層の隣に輪郭平行に置かれかつ発泡プラスチック層（２）の突出部（４）および／またはくぼみ部（５）もまた、それから離れて面するところの不織布層（３）の表面に転写されるように、不織布層（３）が発泡プラスチック層（２）上に刺し縫いされる、というように規定される。かくして、絶縁部品の不織布層と発泡プラスチック層の接合は接着剤なしにもたらされ、その結果接着剤に関してのコストは節約され、また絶縁部品の重量は相応して減じられる。  The invention relates to a multilayer soundproofing and heat insulation part (1), in particular for automobiles, comprising at least one three-dimensional structured foamed plastic layer (2) and at least one non-woven fabric placed adjacent thereto. The foamed plastic layer has a layer (3), and the foamed plastic layer relates to a soundproof and heat insulating component having a plurality of protrusions (4) and / or indentations (5). In order to be able to cost-effectively manufacture such insulating parts with low weight, a nonwoven layer is placed in profile parallel next to the foamed plastic layer and the protrusion (4) of the foamed plastic layer (2) And / or the indentation (5) is also sewed onto the foamed plastic layer (2) so that it is also transferred to the surface of the nonwoven layer (3) facing away from it. , And so on. Thus, the bonding of the non-woven fabric layer and the foamed plastic layer of the insulating part is effected without an adhesive, so that the costs associated with the adhesive are saved and the weight of the insulating part is correspondingly reduced.

Description

本発明は、特に自動車用の、多層状の音および熱の絶縁部品（「防音・断熱部品」）であって、少なくとも１層の三次元構造化発泡プラスチック層およびそれに隣接して置かれている少なくとも１層の不織布層を有し、しかも該発泡プラスチック層は複数の突出部および／またはくぼみ部を有する防音・断熱部品に関する。   The present invention is a multilayered sound and heat insulation component ("soundproof and heat insulation component"), particularly for automobiles, placed at least one layer of a three-dimensional structured foam plastic layer and adjacent thereto. The present invention relates to a soundproofing and heat insulating component having at least one nonwoven fabric layer, and the foamed plastic layer having a plurality of protrusions and / or indentations.

かかる防音・断熱部品は、たとえば国際公開第００／３４９４３号パンフレットから公知である。この公知絶縁部品の発泡プラスチック層はポリイミド発泡プラスチックから成り、そしてジグザグ形態に走行し、それにより横断面がおおよそＶ字形の中空空間が、ジグザグ形の楔形部において発泡プラスチック層と不織布層の間に与えられている。不織布層は、接着、貼り合わせ、等なしに発泡プラスチック層上に置かれる。これらの二層は、縁部が溶接された包被フィルムにより一緒に保持される。   Such soundproofing and heat insulation parts are known, for example, from WO 00/34943. The foamed plastic layer of this known insulating part is made of polyimide foamed plastic and runs in a zigzag form, so that a hollow space with a roughly V-shaped cross section is formed between the foamed plastic layer and the nonwoven fabric layer in the zigzag wedge shape. Is given. The nonwoven layer is placed on the foamed plastic layer without gluing, bonding, etc. These two layers are held together by a covering film whose edges are welded.

更に、自動車のエンジンコンパートメント用の断熱・遮音用内張り材が、独国特許出願公開第１９８ ２１ ５３２号明細書に記載されている。この内張り材は、エンジン側のカバー層、これと接触している１８０℃まで永続的に耐熱性の防音性デュロプラスチック（duroplastic）発泡プラスチック層、これと接触しているプラスチック発泡体または繊維不織布の絶縁層、およびこれと接触しているカバー層（エンジン側から離れて面するカバー層）から成る。発泡プラスチック層およびこれと接触しているプラスチック発泡体または繊維不織布の絶縁層は、格子様外形（たとえば、凸状突出部から成る）を有し得る。内張り材の諸層は、接着剤により一緒に接合される。独国特許出願公開第１９８ ２１ ５３２号明細書には、記載された内張り材の図面は含まれていない。   Furthermore, a lining material for heat insulation and sound insulation for an automobile engine compartment is described in DE 198 21 532 A1. This lining material consists of a cover layer on the engine side, a soundproof duroplastic foam plastic layer that is permanently heat resistant up to 180 ° C in contact with it, a plastic foam or fiber nonwoven fabric in contact with it. It consists of an insulating layer and a cover layer in contact with it (a cover layer facing away from the engine side). The foamed plastic layer and the insulating layer of plastic foam or fibrous nonwoven in contact therewith can have a lattice-like profile (eg, consisting of convex protrusions). The layers of lining material are joined together by an adhesive. German Patent Application No. 198 21 532 does not include a drawing of the lining material described.

本発明の根底にあった目的は、特に軽いそしてコスト効率的に製造され得るところの、冒頭に挙げられたタイプの多層状防音・断熱部品を提供することであった。   The object underlying the present invention was to provide a multilayered soundproofing and thermal insulation component of the type mentioned at the outset, which can be manufactured particularly lightly and cost-effectively.

この目的は、本発明に従って、不織布層が発泡プラスチック層の隣に輪郭平行（輪郭に沿うように平行に）に置かれかつ発泡プラスチック層の突出部および／またはくぼみ部もまた、発泡プラスチック層から離れて面するところの不織布層の表面に転写されるように、不織布層が発泡プラスチック層に刺し縫いされることにより解決される。   This object is achieved in accordance with the invention in that the nonwoven layer is placed parallel to the contour (parallel to the contour) next to the foam plastic layer and the protrusions and / or recesses of the foam plastic layer are also from the foam plastic layer. The problem is solved by stitching the non-woven fabric layer to the foamed plastic layer so that it is transferred to the surface of the non-woven fabric layer facing away.

かくして、本発明による絶縁部品の不織布層と発泡プラスチック層の接合は接着剤なしに成され、その結果接着剤に関してのコストは節約され、また絶縁部品の重量は相応して減じられる。接着剤を省く結果として、接着剤により引き起こされる環境上危険であり得る放出もまた避けられ得る。接着剤を省くことはまた、対応する絶縁部品のリサイクリングを簡単にする。特に、本発明による絶縁部品は比較的大きい不織布層表面を有し、何故なら不織布層は三次元構造化発泡プラスチック層の隣に輪郭平行に置かれ、そしてかくして吸音効果のある大きい表面を有する発泡プラスチック層と本質的に同じ外形を有するからである。   Thus, the joining of the non-woven fabric layer and the foamed plastic layer of the insulating component according to the invention is made without an adhesive, so that the costs associated with the adhesive are saved and the weight of the insulating component is correspondingly reduced. As a result of omitting the adhesive, releases that can be environmentally hazardous caused by the adhesive can also be avoided. Omitting the adhesive also simplifies recycling of the corresponding insulating component. In particular, the insulating component according to the invention has a relatively large nonwoven layer surface, because the nonwoven layer is placed in parallel with the contour next to the three-dimensional structured foamed plastic layer and thus has a large surface with a sound absorbing effect. This is because it has essentially the same outer shape as the plastic layer.

不織布層が絶縁部品の暴露側を成す場合、不織布層における発泡プラスチック層の表面外形の転写はまた、絶縁部品の光学効果に関して有利であり得る。それ故、本発明による絶縁部品はまた、特に意匠機能を有し得る。   If the nonwoven layer is the exposed side of the insulating component, the transfer of the surface profile of the foamed plastic layer in the nonwoven layer can also be advantageous with respect to the optical effect of the insulating component. Therefore, the insulating component according to the invention can also have a design function in particular.

発泡プラスチック層への不織布層の刺し縫いは、機械的にまたはウォータージェット技法により行われ得る。   Stitching of the nonwoven layer to the foamed plastic layer can be performed mechanically or by a water jet technique.

発泡プラスチック層の突出部および／またはくぼみ部は、規則的にまたは不規則的に配置され得る。しかしながら、好ましくは、それらは、本質的に一様に特に格子形態に配置される。格子は、正方形、長方形または菱形にデザインされ得る。   The protrusions and / or depressions of the foam plastic layer can be arranged regularly or irregularly. However, preferably they are arranged essentially uniformly, in particular in a lattice form. The grid can be designed in a square, rectangular or diamond shape.

発泡プラスチック層は、好ましくは、連続気泡発泡プラスチックから成る。特に軽くて難燃性の絶縁部品を製造するために、発泡プラスチック層は、好ましくは、メラミン樹脂発泡プラスチックから作られ得る。   The foamed plastic layer is preferably made of open cell foamed plastic. In order to produce particularly light and flame retardant insulating parts, the foam plastic layer can preferably be made from melamine resin foam plastic.

不織布層は、スパン不織布またはニードルパンチド不織布から作られ得る。不織布層の繊維は、特に、合成繊維であり得る。更に、不織布層はまた、アルミニウム繊維不織布から形成され得る。   The nonwoven layer can be made from a spun nonwoven or a needle punched nonwoven. The fibers of the nonwoven layer can in particular be synthetic fibers. Further, the nonwoven layer can also be formed from an aluminum fiber nonwoven.

本発明による絶縁部品の有利な開発は、不織布層が発泡プラスチック層にくぼみ部の領域において刺し縫いされかつ突出部の領域において刺し縫いされないで発泡プラスチック層の隣に置かれることに存する。一方では、これは突出部の領域において不織布層の穿孔が防がれ（場合に依り、不織布層の光学的外観にとって望ましくあり得る）、そして他方では、絶縁部品の後でのリサイクリング中において、不織布層と発泡プラスチック層の分離が容易にされる。   An advantageous development of the insulating component according to the invention consists in that the nonwoven layer is placed in the foamed plastic layer next to the foamed plastic layer without being stitched in the area of the indentation and in the area of the protrusion. On the one hand, this prevents perforation of the nonwoven layer in the region of the protrusion (which may be desirable for the optical appearance of the nonwoven layer depending on the case), and on the other hand, during recycling after the insulating component, Separation of the nonwoven fabric layer and the foamed plastic layer is facilitated.

本発明は、いくつかの具体例を表す図面の助けでもって、下記に一層詳細に説明される。   The invention is explained in more detail below with the aid of drawings representing several embodiments.

図１は、本発明による絶縁部品１の断片の暴露側を示す。絶縁部品１は、本質的に板形状にデザインされる。それは、三次元構造化発泡プラスチック層２および全表面にわたってそれに隣接して置かれる不織布層３から構築される。発泡プラスチック層２は、複数のナップ形状突出部４およびトラフ形状くぼみ部５（格子形態に配置される）を有する。突出部４およびくぼみ部５は、たとえば不織布の載置に先だって外形切削および／または圧縮成形により、発泡プラスチック層２に作られている。突出部４を含めて発泡プラスチック層２の層厚は、おおよそ５から２０ｍｍの範囲にある。不織布層３の層厚は、たとえば、１から５ｍｍになり得る。   FIG. 1 shows the exposed side of a piece of insulating component 1 according to the invention. The insulating component 1 is essentially designed in a plate shape. It is constructed from a three-dimensional structured foamed plastic layer 2 and a nonwoven layer 3 placed adjacent to it over the entire surface. The foamed plastic layer 2 has a plurality of nap-shaped protrusions 4 and trough-shaped depressions 5 (arranged in a lattice form). The protruding portion 4 and the recessed portion 5 are formed in the foamed plastic layer 2 by, for example, external cutting and / or compression molding prior to placing the nonwoven fabric. The thickness of the foamed plastic layer 2 including the protrusions 4 is in the range of approximately 5 to 20 mm. The layer thickness of the nonwoven fabric layer 3 can be, for example, 1 to 5 mm.

この具体的態様において、発泡プラスチック層２は片側においてのみ構造化され、すなわち、発泡プラスチック層２の反対側は本質的に平坦である。しかしながら、必要なら、発泡プラスチック層２はまた両側に外形が造られ得、並びにまた下側に更なるプラスチックもしくは繊維材料層（図３参照）および／またはプラスチックもしくは金属箔（図示されていない）を具備し得る。   In this embodiment, the foamed plastic layer 2 is structured only on one side, ie the opposite side of the foamed plastic layer 2 is essentially flat. However, if necessary, the foamed plastic layer 2 can also be contoured on both sides, and also with a further plastic or fibrous material layer (see FIG. 3) and / or plastic or metal foil (not shown) on the lower side. It can be provided.

図２に概略的に示されているように、不織布層３は、発泡プラスチック層２の隣に輪郭平行に置かれるように、発泡プラスチック層２に刺し縫いされる。かくして、発泡プラスチック層２の突出部４およびくぼみ部５もまた、不織布層３の表面に転写される。かくして、不織布層３と発泡プラスチック層２の接合は、接着剤なしに行われる。   As schematically shown in FIG. 2, the nonwoven fabric layer 3 is sewed into the foamed plastic layer 2 so as to be placed in parallel with the contour next to the foamed plastic layer 2. Thus, the protrusions 4 and the depressions 5 of the foamed plastic layer 2 are also transferred to the surface of the nonwoven fabric layer 3. Thus, the joining of the nonwoven fabric layer 3 and the foamed plastic layer 2 is performed without an adhesive.

発泡プラスチック層２への不織布層３の刺し縫いは、互いに平行に整列された複数本の針を有ししかも上げ下げされることの可能な針ビームにより行われ得る。その代わりに、不織布層３の刺し縫いはまた、ウォータージェット技法により、すなわち複数の微細高圧水噴流でもって行われ得る。針または水噴流は不織布層３の複数本の繊維６を発泡プラスチック層２中に引っ張り込み、その結果これらの繊維６のセクションが発泡プラスチック層中に十分にしっかりと食い込まれまたは固着される。複数本の繊維６が、発泡プラスチック層２の下側まで延びる。他方では、これらの繊維６のセクションは、不織布層３中に食い込まれたまたは固着されたままにある。   Stitching of the nonwoven layer 3 to the foamed plastic layer 2 can be performed by a needle beam having a plurality of needles aligned parallel to each other and which can be raised and lowered. Alternatively, the stitching of the nonwoven layer 3 can also be performed by the water jet technique, i.e. with a plurality of fine high pressure water jets. The needle or water jet pulls the plurality of fibers 6 of the nonwoven layer 3 into the foamed plastic layer 2 so that the sections of these fibers 6 are sufficiently firmly bitten or fixed in the foamed plastic layer. A plurality of fibers 6 extend to the lower side of the foamed plastic layer 2. On the other hand, the sections of these fibers 6 remain encroached or fixed in the nonwoven layer 3.

示されたこの具体例において、不織布層３は本質的に一様であり、そしてその全表面にわたって発泡プラスチック層２に刺し縫いされる。しかしながら、刺し縫いはまた、不織布層３がくぼみ部５の領域においてのみ刺し縫いされかつ突出部４の領域において刺し縫いされないで発泡プラスチック層２の隣に置かれるように行われ得る。   In this embodiment shown, the nonwoven layer 3 is essentially uniform and is sewed into the foamed plastic layer 2 over its entire surface. However, stab stitching can also be carried out so that the nonwoven layer 3 is stabbed only in the area of the indentation 5 and is not stabbed in the area of the protrusion 4 but is placed next to the foamed plastic layer 2.

発泡プラスチック層２は、好ましくは、連続気泡発泡プラスチックからたとえばメラミン樹脂発泡プラスチックから作られる。しかしながら、発泡プラスチック層２について、本質的に独立気泡の発泡プラスチックを用いることも可能である。   The foamed plastic layer 2 is preferably made from open cell foamed plastic, for example from melamine resin foamed plastic. However, for the foamed plastic layer 2, it is also possible to use a foamed plastic having essentially closed cells.

図３に示された具体例は、第１に、発泡プラスチック層２が両側において三次元構造化されることにより、図２における具体例とは相違する。その構造は、発泡プラスチック層２の両側において、複数のナップ形状突出部４およびトラフ形状くぼみ部５（やはり格子形態に配置される）から成る。発泡プラスチック層２の一方の側における突出部４は、各場合において、反対側におけるくぼみ部５と対向している（またその逆）、ということが留意されるべきである。   The specific example shown in FIG. 3 is different from the specific example in FIG. 2 because the foamed plastic layer 2 is first three-dimensionally structured on both sides. The structure consists of a plurality of nap-shaped protrusions 4 and trough-shaped depressions 5 (also arranged in a lattice form) on both sides of the foamed plastic layer 2. It should be noted that the protrusion 4 on one side of the foamed plastic layer 2 is in each case opposed to the indentation 5 on the opposite side (and vice versa).

更に、図３における具体例は、外形が造られた発泡プラスチック層２が両側に不織布層３、３′を具備することにより、図２における具体例とは相違する。第２不織布層３′もまた、発泡プラスチック層２の隣に輪郭平行に置かれるように、発泡プラスチック層２上に刺し縫いされる。それ故、それに面している発泡プラスチック層２の突出部４およびくぼみ部５は、明らかにその表面に転写される。これらの二つの不織布層３、３′は、異なる不織布材料から形成され得る。   Further, the specific example in FIG. 3 is different from the specific example in FIG. 2 in that the foamed plastic layer 2 having an outer shape is provided with nonwoven fabric layers 3 and 3 ′ on both sides. The second nonwoven layer 3 ′ is also sewed on the foamed plastic layer 2 so as to be placed parallel to the contour next to the foamed plastic layer 2. Therefore, the protrusions 4 and the depressions 5 of the foamed plastic layer 2 facing it are clearly transferred to the surface. These two nonwoven layers 3, 3 'can be formed from different nonwoven materials.

本発明による絶縁部品１は、特に、自動車における内表面の防音・断熱内張りのために適する。   The insulating component 1 according to the present invention is particularly suitable for soundproofing and heat insulation lining of the inner surface of an automobile.

不織布層３、３′は、好ましくは、スパン不織布、ニードルパンチド不織布および／またはアルミニウム繊維不織布から形成される。   The nonwoven fabric layers 3, 3 'are preferably formed from a spun nonwoven fabric, a needle punched nonwoven fabric and / or an aluminum fiber nonwoven fabric.

アルミニウム繊維不織布の使用は、本発明による絶縁部品１が吸音効果のある遮熱材として用いられることになっている場合格別有利である。アルミニウム繊維不織布は、特に、熱反射効果を有する。この場合において、発泡プラスチック層２は、有利には、比較的高い温度耐性を有することが知られているメラミン樹脂発泡プラスチックから作られ得る。   The use of an aluminum fiber nonwoven is particularly advantageous when the insulating component 1 according to the invention is to be used as a heat shield with a sound absorbing effect. The aluminum fiber nonwoven fabric particularly has a heat reflection effect. In this case, the foamed plastic layer 2 can advantageously be made from a melamine resin foamed plastic known to have a relatively high temperature resistance.

図４は、本発明による絶縁部品の製造プラントの略図である。２により表された発泡プラスチック層は材料ウエブの形態にて存在し、最初にステーション７中に運ばれ、そこで発泡プラスチック層２は、輪郭切削および／または圧縮成形により、少なくとも片側において三次元的に外形が造られる。   FIG. 4 is a schematic diagram of an insulation component manufacturing plant according to the present invention. The foamed plastic layer represented by 2 exists in the form of a material web and is first transported into the station 7 where it is three-dimensionally at least on one side by contour cutting and / or compression molding. An outline is created.

不織布層３、３′が、発泡プラスチック層２の外形が造られた表面上にそれぞれ置かれる。不織布層３、３′もまた、材料ウエブとして存在しそして供給ロールから供給され得る。一緒にもたらされた材料ウエブ２、３、３′は次いで刺し縫いステーションを通過し、しかして該刺し縫いステーションは、ここではたとえば上げ下げされることの可能な２つの針ビーム８、９により形成されている。互いに対向して置かれている針ビーム８、９は、一緒にもたらされた材料ウエブ２、３、３′に直交する規定距離を維持するように、バネ（図示されていない）、等により予荷重が加えられている。針ビーム８、９にそれぞれカム駆動装置１０、１１が割り当てられており、しかしてそれぞれの針ビームをバネの作用に抗して材料ウエブの方へ動かし、その結果それぞれの針ビーム８、９の針は周期態様にてそれぞれ不織布層３および３′並びに発泡プラスチック層２中に刺さり、そしてそれぞれの不織布層３、３′を発泡プラスチック層２と接合する。しかしながら、針ビームによる機械的刺し縫いの代わりに、水噴流、等による液圧式刺し縫いもまた用いられ得る。刺し縫いにより生成された発泡プラスチック層２と不織布層３または不織布層３、３′との複合体は、最後に、更なる加工ステーションたとえば特定の切片の作製のための切断ステーションへの輸送のために、巻物の形態に巻き取られる。しかしながら、該複合体はまた、刺し縫いステーションの直後に、更に加工（特に、所与サイズに切断）され得る、ということは言うまでもない。   Nonwoven fabric layers 3, 3 'are respectively placed on the surface on which the contour of the foamed plastic layer 2 is made. Nonwoven layers 3, 3 'are also present as material webs and can be fed from a feed roll. The material webs 2, 3, 3 ′ brought together then pass through a stab station, which is here formed by two needle beams 8, 9 which can be raised and lowered, for example. Has been. The needle beams 8, 9 placed opposite to each other are spring-loaded (not shown), etc., so as to maintain a defined distance orthogonal to the material webs 2, 3, 3 'brought together. Preload is applied. Cam drives 10 and 11 are assigned to the needle beams 8 and 9, respectively, so that each needle beam is moved towards the material web against the action of a spring, so that each needle beam 8 and 9 The needles are punctured into the nonwoven layers 3 and 3 ′ and the foamed plastic layer 2, respectively, in a periodic manner and join the respective nonwoven layers 3 and 3 ′ with the foamed plastic layer 2. However, instead of mechanical stitching with a needle beam, hydraulic stitching with a water jet or the like can also be used. The composite of foamed plastic layer 2 and non-woven layer 3 or non-woven layer 3, 3 'produced by sewing is finally transported to a further processing station, for example a cutting station for the production of specific sections. In the form of a scroll. However, it goes without saying that the composite can also be further processed (especially cut to a given size) immediately after the stitching station.

本発明の実施は、上記に記載された具体例に制限されない。それどころか、基本的に相違する配置においてさえ、請求項に定められた本発明の思想を利用する多数の変型が可能である。   The practice of the present invention is not limited to the specific examples described above. On the contrary, many variants are possible which make use of the inventive idea defined in the claims, even in fundamentally different arrangements.

図１は、本発明による絶縁部品の断片の斜視図である。FIG. 1 is a perspective view of a fragment of an insulating component according to the present invention. 図２は、図１の絶縁部品の横断面図である。FIG. 2 is a cross-sectional view of the insulating component of FIG. 図３は、本発明の第２の具体例による絶縁部品の横断面図である。FIG. 3 is a cross-sectional view of an insulating component according to a second specific example of the present invention. 図４は、本発明による絶縁部品の製造プラントの略図である。FIG. 4 is a schematic diagram of an insulation component manufacturing plant according to the present invention.

Claims (11)

特に自動車用の、多層状防音・断熱部品（１）であって、少なくとも１層の三次元構造化発泡プラスチック層（２）およびそれに隣接して置かれている少なくとも１層の不織布層（３、３′）を有し、しかも該発泡プラスチック層（２）は複数の突出部（４）および／またはくぼみ部（５）を有する防音・断熱部品において、該不織布層（３、３′）が該発泡プラスチック層（２）の隣に輪郭平行に置かれかつ該発泡プラスチック層（２）の該突出部（４）および／またはくぼみ部（５）もまた、それから離れて面するところの該不織布層（３、３′）の表面に転写されるように、該不織布層（３、３′）が該発泡プラスチック層（２）に刺し縫いされていることを特徴とする防音・断熱部品。   A multilayer soundproofing and heat insulation component (1), in particular for automobiles, comprising at least one three-dimensional structured foamed plastic layer (2) and at least one non-woven fabric layer (3, 3), and the foamed plastic layer (2) has a plurality of protrusions (4) and / or indentations (5), wherein the nonwoven fabric layer (3, 3 ') The non-woven fabric layer which is placed next to the foam plastic layer (2) in parallel with the contour and the projections (4) and / or indentations (5) of the foam plastic layer (2) also face away from it The soundproofing and heat insulating part, wherein the nonwoven fabric layer (3, 3 ') is stabbed into the foamed plastic layer (2) so as to be transferred to the surface of (3, 3'). 突出部（４）および／またはくぼみ部（５）が、格子形態に配置されていることを特徴とする、請求項１に記載の防音・断熱部品。   The soundproofing and heat insulating part according to claim 1, characterized in that the protrusions (4) and / or the recesses (5) are arranged in a lattice form. 突出部（４）および／またはくぼみ部（５）が、外形切削および／または圧縮成形により形成されていることを特徴とする、請求項１または２に記載の防音・断熱部品。   The soundproofing and heat insulating part according to claim 1 or 2, characterized in that the projecting part (4) and / or the recessed part (5) are formed by external cutting and / or compression molding. 不織布層（３）が、接着剤なしに発泡プラスチック層（２）と接合されていることを特徴とする、請求項１から３のいずれか一項に記載の防音・断熱部品。   The soundproofing and heat insulating part according to any one of claims 1 to 3, wherein the nonwoven fabric layer (3) is joined to the foamed plastic layer (2) without an adhesive. 発泡プラスチック層（２）が、連続気泡発泡プラスチックから作られていることを特徴とする、請求項１から４のいずれか一項に記載の防音・断熱部品。   The soundproofing and heat insulating part according to any one of claims 1 to 4, characterized in that the foamed plastic layer (2) is made of open-celled foamed plastic. 発泡プラスチック層（２）が、メラミン樹脂発泡プラスチックから作られていることを特徴とする、請求項１から７のいずれか一項に記載の防音・断熱部品。   The soundproofing and heat insulating part according to any one of claims 1 to 7, characterized in that the foamed plastic layer (2) is made of melamine resin foamed plastic. 不織布層（３、３′）が、スパン不織布、ニードルパンチド不織布および／またはアルミニウム繊維不織布から作られていることを特徴とする、請求項１から６のいずれか一項に記載の防音・断熱部品。   The soundproofing and heat insulation according to any one of claims 1 to 6, wherein the nonwoven fabric layer (3, 3 ') is made of a spun nonwoven fabric, a needle punched nonwoven fabric and / or an aluminum fiber nonwoven fabric. parts. 発泡プラスチック層（２）が多数の突出部（４）およびくぼみ部（５）を有する請求項１から７のいずれか一項に記載の防音・断熱部品において、不織布層（３、３′）がくぼみ部（５）の領域において発泡プラスチック層（２）に刺し縫いされかつ突出部（４）の領域において刺し縫いされないで発泡プラスチック層（２）の隣に置かれていることを特徴とする防音・断熱部品。   The soundproofing and heat insulating part according to any one of claims 1 to 7, wherein the foamed plastic layer (2) has a large number of protrusions (4) and depressions (5). Soundproofing characterized in that it is stabbed into the foamed plastic layer (2) in the region of the recess (5) and is placed next to the foamed plastic layer (2) without being stabbed in the region of the protrusion (4)・ Insulation parts. 発泡プラスチック層（２）が、両側において三次元構造化されていることを特徴とする、請求項１から８のいずれか一項に記載の防音・断熱部品。   The soundproofing and heat insulating part according to any one of claims 1 to 8, wherein the foamed plastic layer (2) is three-dimensionally structured on both sides. 発泡プラスチック層（２）が、両側に不織布層（３、３′）を具備していることを特徴とする、請求項１から９のいずれか一項に記載の防音・断熱部品。   The soundproofing and heat insulating part according to any one of claims 1 to 9, characterized in that the foamed plastic layer (2) comprises a nonwoven fabric layer (3, 3 ') on both sides. 発泡プラスチック層（２）が両側に多数の突出部（４）およびくぼみ部（５）を有し、しかもやはり第２不織布層（３′）は、それが発泡プラスチック層（２）の隣に輪郭平行に置かれかつそれに面する発泡プラスチック層（２）の突出部（４）および／またはくぼみ部（５）がその表面に転写されるように、発泡プラスチック層（２）に刺し縫いされていることを特徴とする、請求項９または１０に記載の防音・断熱部品。   The foamed plastic layer (2) has a number of protrusions (4) and indentations (5) on both sides, and again the second nonwoven layer (3 ') is contoured next to the foamed plastic layer (2) The foamed plastic layer (2) is stabbed so that the protrusions (4) and / or indentations (5) of the foamed plastic layer (2) placed in parallel and facing it are transferred to its surface The soundproofing and heat insulating component according to claim 9 or 10, characterized in that
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EP1534505A1 (en) 2005-06-01
DE20213228U1 (en) 2002-10-31

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