JP2007513836A - Self-supporting body parts - Google Patents

Self-supporting body parts Download PDF

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JP2007513836A
JP2007513836A JP2006544194A JP2006544194A JP2007513836A JP 2007513836 A JP2007513836 A JP 2007513836A JP 2006544194 A JP2006544194 A JP 2006544194A JP 2006544194 A JP2006544194 A JP 2006544194A JP 2007513836 A JP2007513836 A JP 2007513836A
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body part
self
foundation structure
layer
cover layer
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JP4359620B2 (en
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ビュイッソン クロード
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Autoneum Technologies AG
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Rieter Technologies AG
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    • 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
    • B60R21/34—Protecting non-occupants of a vehicle, e.g. pedestrians
    • 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
    • B32B3/10—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 discontinuous layer, i.e. formed of separate pieces of material
    • B32B3/12—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 discontinuous layer, i.e. formed of separate pieces of material characterised by a layer of regularly- arranged cells, e.g. a honeycomb structure
    • 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
    • B32B5/18—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 features of a layer of foamed material
    • 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
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
    • 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
    • B62D25/08—Front or rear portions
    • B62D25/10—Bonnets or lids, e.g. for trucks, tractors, busses, work vehicles
    • 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
    • B32B2305/00—Condition, form or state of the layers or laminate
    • B32B2305/02—Cellular or porous
    • B32B2305/024—Honeycomb
    • 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
    • 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
    • B60R21/34—Protecting non-occupants of a vehicle, e.g. pedestrians
    • B60R2021/343—Protecting non-occupants of a vehicle, e.g. pedestrians using deformable body panel, bodywork or components

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Superstructure Of Vehicle (AREA)
  • Vibration Dampers (AREA)
  • Body Structure For Vehicles (AREA)
  • Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Laminated Bodies (AREA)

Abstract

自己支持型車体部品１は基礎構造体７および外皮６から成る。前記基礎構造体は、ハニカム状のコア層２を含み、その騒音放出側はオープンセルを有する第一カバー層３で、外皮側は第二カバー層４で覆われている。前記基礎構造体は、適切な取付け手段５によって外皮６に取り付けられる。自己支持型車体部品１全体のＨＰＣ値は１０００未満である。前記カバー層３の空気抵抗は２００〜５０００Ｎｓ／ｍ3である。
The self-supporting body part 1 includes a foundation structure 7 and an outer skin 6. The foundation structure includes a honeycomb-shaped core layer 2, and the noise emission side is covered with a first cover layer 3 having an open cell, and the outer skin side is covered with a second cover layer 4. The foundation structure is attached to the skin 6 by suitable attachment means 5. The HPC value of the entire self-supporting body part 1 is less than 1000. The air resistance of the cover layer 3 is 200 to 5000 Ns / m 3 .

Description

本発明は、自己支持型車体部品、特に、請求項１の前段に準じた衝撃や音を吸収するボンネット、およびそのような車体部品の製造に適した基礎構造体に関する。   The present invention relates to a self-supporting body part, in particular, a bonnet that absorbs impact and sound according to the first stage of claim 1 and a foundation structure suitable for manufacturing such a body part.

自動車製造分野で用いられるようなボンネットは、基本的に、薄い金属板または合成材料でできたカバーを備えており、支柱またはそれに類する構造物で強化されている。さらに、現代の自動車は、外部へ発せられるエンジン音を低減するために、音響上有効なライニングを備えている。   A bonnet, such as used in the automotive manufacturing field, basically comprises a cover made of a thin metal plate or synthetic material and is reinforced with struts or similar structures. Furthermore, modern automobiles are equipped with acoustically effective linings to reduce engine noise emitted outside.

そのようなライニングは当技術分野において周知であり、例えば、欧州ＥＰ０３５２９９３に記載されている。この公報で開示されている組立品は、航空機業界で用いられているような音響上有効な部品に関する。特に、この部品は、排出口を介して個々の空洞が音響上お互いに連通しているハニカム構造をもつコア層を含む。このコア層は、音響効果を得るために、一方の側で、穴のあいた又はオープンセルを有するカバー層に接している。この組立品は、衝撃吸収機能には全く適していない。   Such linings are well known in the art and are described, for example, in European EP 0 352 993. The assembly disclosed in this publication relates to acoustically effective parts such as those used in the aircraft industry. In particular, the component includes a core layer having a honeycomb structure in which the individual cavities are acoustically connected to each other through the outlet. This core layer is in contact with a cover layer with holes or open cells on one side in order to obtain an acoustic effect. This assembly is not at all suitable for the shock absorbing function.

アナログ音響に効果的な組立品は、仏国ＦＲ２７２７１８９に開示されている。この組立品も、ハニカム構造をもち、オープンセルフォームで塞がれていてもよく、オープンセルの合成フォームから成る外部カバー層を両側に備えたコア層を含む。この組立品は建物の遮音に用いられ、特段の衝撃吸収性は示していない。   An effective assembly for analog sound is disclosed in FR 2727189. This assembly also has a honeycomb structure, may be closed with open cell foam, and includes a core layer with outer cover layers made of synthetic open cell foam on both sides. This assembly is used for sound insulation of buildings and does not show any particular shock absorption.

乗用車に用いられるアナログ組立品も、例えば独国ＤＥ−Ｕ−２９６０７２６２により周知である。この公報で開示された構成部分は、自動車の天井ライナーとして使用されている。この構成部分は、コア層としてハニカム層を含み、このコア層の両側に繊維状材料から成るカバー層を含む。これらのカバー層はハニカム層の上で溶融し、材料接合により結果として構成部分全体の剛性が高まる。この配置により、安定性やより大きな引っ張り強度が与えられるが、特段の音吸収性または衝撃吸収性はない。   Analog assemblies used in passenger cars are also known, for example from DE-U-2967262. The components disclosed in this publication are used as automobile ceiling liners. This component includes a honeycomb layer as a core layer, and includes cover layers made of a fibrous material on both sides of the core layer. These cover layers melt on the honeycomb layer, resulting in increased rigidity of the entire component due to material bonding. This arrangement provides stability and greater tensile strength, but no particular sound or shock absorption.

現代の自動車業界の目的は、同じ組立品にさまざまな物性を含む自動車部品を製造し、技術的機能ごとに異なる部品の数を減らし、重量を減らすことである。したがって、例えば、スイス国ＣＨ−６９２７３１では、衝撃および音吸収性を組み合わせた、自動車に使用する超軽量パッケージが開示されている。このパッケージは乗員を保護するのに適しており、フットスペースの衝撃を受けやすい部分に使用されるのが好ましい。このパッケージには、特に剛性がなく、既存の自動車スペースに敷設されているだけである。   The goal of the modern automotive industry is to manufacture automotive parts with different physical properties in the same assembly, reducing the number of parts that differ for each technical function and reducing the weight. Thus, for example, Swiss CH-692731 discloses an ultralight package for use in automobiles that combines shock and sound absorption. This package is suitable for protecting an occupant and is preferably used in a part that is susceptible to impact in the foot space. This package is not particularly rigid and is only laid in the existing car space.

一般に、周知の組立品は、剛性または音もしくは衝撃吸収性のいずれかを示し、追加的に自動車に挿入されている。これら構成部分のいずれにおいても、上記特性が有益かつ望ましい方法で組み合わさっていない。   In general, known assemblies exhibit either rigidity or sound or shock absorption and are additionally inserted into automobiles. None of these components combine the above properties in a beneficial and desirable way.

本発明の目的は、自己支持型車体部品製造用の音響効果を有する基礎構造体を提供し、特に、この基礎構造体で製造された、ボンネットの音および衝撃吸収性を高めるだけでなく剛性をも高めるボンネットを提供し、それによって、他の道路利用者（歩行者や動物）との衝突の際に重傷、特に頭部損傷を引き起こしうる補強用支柱やビーディング（beadings）を必要としない車体部品（特にボンネット）を提供することである。   The object of the present invention is to provide a foundation structure with acoustic effects for the production of self-supporting body parts, in particular not only to increase the sound and shock absorption of the bonnet manufactured with this foundation structure, but also to increase the rigidity. Bodywork that does not require reinforcing posts or beadings that can cause serious injury, especially head damage, in the event of a collision with other road users (pedestrians and animals) To provide parts (especially bonnets).

この課題は、自己支持型車体部品、特に請求項１の特徴を備えたボンネット、さらにそのような車体部品を製造するための請求項５の特徴を備えた基礎構造体によって解決される。   This problem is solved by a self-supporting body part, in particular a bonnet with the features of claim 1 and a foundation structure with the features of claim 5 for producing such body parts.

本発明の車体部品は、基礎構造体（substructure）および外皮（outer skin）から成り、前記基礎構造体はコア層、好ましくはハニカム状コア層から成る。このコア層は、騒音放出側にオープンセルを有する第一カバー層を、外皮側に第二カバー層を備える。この基礎構造体は、適切な取付け手段によって外皮に取り付けられる。本発明によれば、自己支持型車体部品全体のＨＰＣ値は１０００未満であり、騒音放出側のカバー層の空気抵抗は２００〜５０００Ｎｓ／ｍ3である。 The vehicle body part of the present invention comprises a substructure and an outer skin, and the foundation structure comprises a core layer, preferably a honeycomb core layer. The core layer includes a first cover layer having an open cell on the noise emission side and a second cover layer on the outer skin side. This substructure is attached to the skin by suitable attachment means. According to the present invention, the HPC value of the entire self-supporting body part is less than 1000, and the air resistance of the cover layer on the noise emission side is 200 to 5000 Ns / m 3 .

前記ＨＰＣ値は以下のように定義される。

Figure 2007513836
ａ：合成された加速度は「ｇ」の倍数である
ｔ１およびｔ２：衝突中の２つの時刻（秒）であり、ＨＰＣが最大値を記録する最初と最後と定義する The HPC value is defined as follows.
Figure 2007513836
 a: The combined acceleration is a multiple of “g”, t1 and t2: two times (seconds) during the collision, defined as the first and last when HPC records the maximum value

したがって、ＨＰＣ値を決定するために、ｘ、ｙ、ｚ方向における加速度が歩行者の頭部中心に対して測定され、合成された加速度が計算される。ＨＰＣ値は、上記式に基づいて、すなわち合成された加速度を経時的に積分することによって決定することができる。ＨＰＣ値は無次元値である。   Therefore, in order to determine the HPC value, accelerations in the x, y, and z directions are measured relative to the pedestrian's head center and a combined acceleration is calculated. The HPC value can be determined based on the above equation, ie by integrating the synthesized acceleration over time. The HPC value is a dimensionless value.

この車体部品および対応する基礎構造体のさらなる実施形態は、当業者の通常の専門知識の範囲内である。   Further embodiments of this body part and corresponding substructure are within the ordinary expertise of a person skilled in the art.

本発明の車体部品は、自己支持型ボンネットとして、自己支持型のトランク蓋として、または自己支持型の自動車屋根として設計することができ、道路用または鉄道用のいかなる種類の車両にも適用できる。   The vehicle body part of the present invention can be designed as a self-supporting bonnet, as a self-supporting trunk lid, or as a self-supporting automobile roof, and can be applied to any kind of vehicle for roads or railways.

本発明を、図面を用いて実施例によってさらに詳細に説明する。   The invention is explained in more detail by means of examples using the drawings.

図１は、本発明の車体部品の概略図である。
図２は、局所固定手段を備えた、本発明の車体部品の概略図である。
図３は、追加的な衝撃吸収部材を備えた、本発明の車体部品の概略図である。
図４は、衝撃遅延の経時的進行に関する比較計測曲線である。
図５は、局所的にオメガ形状のゆがみが配置された基礎構造体を含む、本発明の車体部品の概略図である。
図６は、局所的な圧縮領域をもつ基礎構造体を含む、図５に示された車体部品の概略図である。 FIG. 1 is a schematic view of a vehicle body part of the present invention.
FIG. 2 is a schematic view of a vehicle body part of the present invention provided with local fixing means.
FIG. 3 is a schematic view of a vehicle body part of the present invention with an additional shock absorbing member.
FIG. 4 is a comparative measurement curve regarding the progress of impact delay over time.
FIG. 5 is a schematic view of a vehicle body part of the present invention including a substructure with locally arranged omega-shaped distortions.
FIG. 6 is a schematic view of the vehicle body part shown in FIG. 5 including a substructure with local compression regions.

本発明の組立品は、図1に概略的に示されている。この図は、ハニカム状コア層２を備え、エンジンルーム側にオープンセルを有するカバー層３、外皮側にカバー層４を含む自己支持型車体部品１を示し、外皮側の前記カバー層４は、結合剤または接着剤によって外皮６に接合されている。ハニカム状コア層２および両カバー層３、４を含むこの組立品は、以下基礎構造体７と称する。コア層２は、段ボール、アルミニウム、「Ｎｏｍｅｘ（登録商標）」または他の変形可能な材料から成るのが好ましく、特に、ＰＡ、ポリエステル、ＰＵといったプラスチック材料から成るのが好ましい。他の適切な材料が使用されることも勿論である。例えば、リサイクル段ボールもしくは波形の段ボールまたはＴＳフォーム（ＰＵまたはポリアミド系フォーム）もしくはＴＰフォーム（ＥＰＰ、「Ｎｏｔｙｌ（登録商標）」 ＥＥＦまたはそれに類するもの）もしくは金属フォームである。２つのカバー層３，４は、繊維性材料、特に、鉱物繊維（ガラスファイバー、セラミックファイバー）、天然繊維（例えば、綿、ジュート、サイザル繊維、リンネル、麻）、動物性繊維（羊毛など）、耐溶融性が高い金属繊維および／または合成繊維または化学繊維といった数種類の繊維の複合材料から成ることが好ましい。具体的な実施形態において、ハニカム状構造はアルミニウム製であり、金属含有層に接着されている。一般に、外皮６はスチール板またはアルミニウム板から成る。個々の層は、（機械的）摩擦接合および／または材料接合（はんだ付け、接着剤）のいずれかによって、互いに接合できる。本発明の組立品は、期待される衝撃吸収要件が満たされるような寸法である。基礎構造体７の厚みおよび組成だけでなく外皮６の厚みおよび材料選択を共に考慮に入れるという点で、特に注目されるのは、車体部品全体すなわち外皮６および基礎構造体７の曲げ剛性である。コア層２の好ましい厚みは２０±１０ｍｍである。このコア層２の個々のセルの直径は５ｍｍ〜２５ｍｍの範囲であり、圧縮抵抗は１００ＫＰａ〜１０００ＫＰａの範囲である。車体部品１の外皮６は周知のフェノール材料で作製することができる。言うまでもなく、ガラスファイバー、玄武岩繊維およびその他の繊維性材料（熱可塑性高分子も）を使用することができる。この外皮の面積当り重量は５００ｇ／ｍ2〜１５００ｇ／ｍ2の範囲である。基礎構造体７と外皮６との接合は、重量１５０ｇ／ｍ2未満の粘着性フィルムまたは基礎構造体７が重合されると（is polymerized）溶融し始める熱可塑性フィルムによって行うことができる。もちろん、エポキシ樹脂、メラミン類、ウレタン類、アクリル類または尿素ホルムアルデヒド縮合物といった他の標準的な接着剤を用いることもできる。あるいは、適切な最終形成工程において外皮６と基礎構造体７を接合することができる。基礎構造体は、クリップ、ライン接合、全表面接合、もしくはライン接合と機械的固定との組み合わせによって、またはアンダーサポート・ブラケットおよびクリップを埋め込むことによって、金属製の外皮６に固定することができる。さらに、ヒンジまたはフックを固定したり、基礎構造体の剛性を向上もしくは変化させたりするために、基礎構造体７は、ＳＭＣまたは熱硬化性または金属性の強化材でできた局所固定点を組み込むことができる。 The assembly of the present invention is shown schematically in FIG. This figure shows a self-supporting body part 1 including a honeycomb core layer 2 and having an open cell on the engine room side and a cover layer 4 on the outer skin side. The cover layer 4 on the outer skin side is It is joined to the outer skin 6 by a binder or an adhesive. This assembly including the honeycomb core layer 2 and the cover layers 3 and 4 is hereinafter referred to as a basic structure 7. The core layer 2 is preferably made of corrugated cardboard, aluminum, “Nomex®” or other deformable material, in particular made of a plastic material such as PA, polyester, PU. Of course, other suitable materials can be used. For example, recycled cardboard or corrugated cardboard, TS foam (PU or polyamide-based foam) or TP foam (EPP, “Notyl®” EEF or the like) or metal foam. The two cover layers 3, 4 are made of fibrous materials, in particular mineral fibers (glass fibers, ceramic fibers), natural fibers (eg cotton, jute, sisal fibers, linen, hemp), animal fibers (wool etc.), It is preferably made of a composite material of several types of fibers such as metal fibers and / or synthetic fibers or chemical fibers which have a high resistance to melting. In a specific embodiment, the honeycomb structure is made of aluminum and bonded to the metal-containing layer. In general, the outer skin 6 is made of a steel plate or an aluminum plate. The individual layers can be joined together by either (mechanical) friction joining and / or material joining (soldering, adhesive). The assembly of the present invention is dimensioned to meet the expected shock absorption requirements. Of particular note is the flexural rigidity of the entire body part, that is, the skin 6 and the foundation structure 7 in that both the thickness and composition of the foundation structure 7 as well as the thickness and material selection of the skin 6 are taken into account. . A preferable thickness of the core layer 2 is 20 ± 10 mm. The diameter of each cell of the core layer 2 is in the range of 5 mm to 25 mm, and the compression resistance is in the range of 100 KPa to 1000 KPa. The outer skin 6 of the vehicle body part 1 can be made of a known phenol material. Needless to say, glass fibers, basalt fibers and other fibrous materials (including thermoplastic polymers) can be used. Area per weight of this outer skin is in the range of 500g / m 2 ~1500g / m 2 . Bonding of the substructure 7 and the skin 6 can be done with an adhesive film weighing less than 150 g / m 2 or a thermoplastic film that begins to melt when the substructure 7 is polymerized. Of course, other standard adhesives such as epoxy resins, melamines, urethanes, acrylics or urea formaldehyde condensates can be used. Alternatively, the outer skin 6 and the foundation structure 7 can be joined in an appropriate final forming step. The substructure can be secured to the metal skin 6 by clips, line joints, full surface joints, or a combination of line joints and mechanical fastening, or by embedding under-support brackets and clips. Furthermore, in order to fix the hinges or hooks and to improve or change the rigidity of the foundation structure, the foundation structure 7 incorporates local fixing points made of SMC or a thermosetting or metallic reinforcement. be able to.

本発明の自己支持型車体部品１に必要な剛性は、基本的に基礎構造体７の剛性効果によって決まる。当業者は、個々の層の設計、材料、厚みおよび剛性を適切に選択して組み合わせる。特に、当業者は、材料の性質、表面重量、外皮の接合強度を考慮に入れつつ、ハニカム状層に適切な厚み、セルの大きさ、圧縮抵抗または材料を選択することを考える。   The rigidity required for the self-supporting body part 1 of the present invention is basically determined by the rigidity effect of the foundation structure 7. Those skilled in the art will appropriately select and combine the design, material, thickness and stiffness of the individual layers. In particular, those skilled in the art will consider selecting an appropriate thickness, cell size, compression resistance or material for the honeycomb layer, taking into account the nature of the material, surface weight, and skin bond strength.

本発明の車体部品１の音響上の有効性は、基本的には基礎構造体７の音響特性によって決まる。特に、オープンセルを有するカバー層３の空気抵抗（air flow resistance）は２００〜５０００Ｎｓ／ｍ3である。 The acoustic effectiveness of the vehicle body part 1 of the present invention is basically determined by the acoustic characteristics of the foundation structure 7. In particular, the air resistance of the cover layer 3 having an open cell (air flow resistance) is 200~5000Ns / m 3.

基礎構造体７には、衝撃が起こりうる状況での運動エネルギーの吸収能力を向上させる目的で、少なくとも局所的に、図３のように、ハニカム状の層または発泡層８および追加的な繊維層９を設けることができる。   In order to improve the absorption capacity of the kinetic energy in a situation where an impact can occur, the substructure 7 has at least locally a honeycomb-like layer or foam layer 8 and an additional fiber layer as shown in FIG. 9 can be provided.

図２が概略的に示しているように、車体部品１に、さらなる部材、特にヒンジまたは他の密閉部材を取り付けるための追加的部材１１を設けることは、当業者の裁量の範囲内である。さらに、車体部品１には、所定の領域において、熱保護材、特にアルミホイルを設けることができる。金属繊維、導電性フィルムまたは金属格子を使用することによって、電磁波に対する保護（ＥＭＣ保護）を与えることができる。   As shown schematically in FIG. 2, it is within the discretion of the person skilled in the art to provide the vehicle body part 1 with an additional member 11 for attaching further members, in particular hinges or other sealing members. Further, the vehicle body part 1 can be provided with a heat protection material, particularly an aluminum foil, in a predetermined region. By using metal fibers, conductive films or metal grids, protection against electromagnetic waves (EMC protection) can be provided.

図４は、いくつかのさまざまな配置に対する衝撃遅延の経時的進行の計測曲線を示す。重要なＨＰＣ値（頭部傷害値）は重さ３．５ｋｇである児童の頭部（または重さ４．８ｋｇである成人の頭部）に対して、時速３５ｋｍ／時間の衝突速度で測定される。ヨーロッパ自動車業界の衝撃吸収ガイドラインに合致させるには、この値は１０００未満（ＨＰＣ＜１０００）でなければならない。   FIG. 4 shows a measurement curve of impact delay over time for several different configurations. Important HPC values (head injury values) are measured at a collision speed of 35 km / h against a child's head weighing 3.5 kg (or an adult head weighing 4.8 kg). The This value must be less than 1000 (HPC <1000) to meet the European automobile industry shock absorption guidelines.

図５は、局所的にオメガ形状のゆがみが配置された基礎構造体を含む、本発明の車体部品の概略図を示す。この設計は、車体部品全体の剛性を高めるには有益である。このような形状の基礎構造体の配置は、ＨＰＣ値が１０００未満になるように調整される。局所的詰め物または局所的基礎構造体８を付加することができる。   FIG. 5 shows a schematic view of the vehicle body part of the present invention, including a substructure with locally placed omega-shaped distortions. This design is beneficial for increasing the rigidity of the entire body part. The arrangement of the foundation structure having such a shape is adjusted so that the HPC value is less than 1000. A local filling or a local substructure 8 can be added.

図６は、局所的な圧縮領域１２、１３を含み、基礎構造体の剛性を変化させる、図５に示された車体部品を示す。特に、これによってさらに動態作用偏向の最初のピークを小さくすることができる。耐熱性を十分確保するため、請求項に記載の基礎構造体は少なくとも局所的にアルミニウム膜で覆われていてもよい。   FIG. 6 shows the body part shown in FIG. 5 that includes local compression regions 12, 13 and changes the stiffness of the substructure. In particular, this can further reduce the initial peak of the kinetic action deflection. In order to ensure sufficient heat resistance, the substructure described in the claims may be at least locally covered with an aluminum film.

好適な実施形態において、この基礎構造体は不織布またはホイルで覆われており、もし、この車体部品が塗装前に組み立てられれば、塗装後に剥がすことができる。当業者は、構造的ひだを含む基礎構造体を設計するか、または耐火性付与剤、耐薬品性付与剤および耐湿性付与剤をこの基礎構造体に与えることを考慮する。   In a preferred embodiment, the substructure is covered with a non-woven fabric or foil and can be peeled off after painting if the body part is assembled before painting. One skilled in the art will consider designing a substructure that includes structural pleats or providing the substructure with a fireproofing agent, a chemical resistance imparting agent, and a moisture resistance imparting agent.

本発明の構造物は、ＡＣＥＡおよび／またはＥＥＣ ＷＧ１７の歩行者保護のための今後の規範を満たすような、または他国（アメリカ合衆国、日本など）における相当する規則を満たすような方法で設計され寸法を決めればよい。現在の規則は、フロントガラスへの衝突にのみ関し、しかも、強制的ではないか、もしくは任意にボンネットに適用されるだけである。この車体部品は、ＦＭＶＳＳ２０１規則を満たすヘッドライナーとして設計できる。   The structure of the present invention is designed and dimensioned in such a way as to meet the future norms for pedestrian protection of ACEA and / or EEC WG17 or to meet the corresponding rules in other countries (United States, Japan, etc.) Just decide. The current rules relate only to the collision with the windshield and are not mandatory or optionally only applied to the hood. This body part can be designed as a headliner that satisfies the FMVSS201 rules.

本発明の車体部品の利点は、当業者にとって直接的に明らかである。特に、その利点は、自己支持型車体部品すなわち構造部品を形成するのに十分な剛性をもち、必要なＨＰＣ値をもち、音響効果もある車体部品の創作において認められる。   The advantages of the body parts of the present invention are directly apparent to those skilled in the art. In particular, the advantages are recognized in the creation of a body part that has sufficient rigidity to form a self-supporting body part, i.e. a structural part, has the necessary HPC value, and also has an acoustic effect.

さらに、本発明は、車体部品をエンジンブロックまたは他の剛性部材（骨材、電池またはそれに類するもの）により近く配置できることから、よりコンパクトな車両構造を可能とする。特に、これは、基礎構造体の連続的な圧縮作用だけでなく、自己支持型車体部品全体の変形によるエネルギー吸収の増大によって、確実になる。このように、エンジンブロックまたは他の剛性車両部材の間隔を、規定のＨＰＣ値（またはＨＩＣ値すなわち頭部傷害値）を超えることなく、２５％低減することができる。   Furthermore, the present invention allows a more compact vehicle structure because the vehicle body parts can be placed closer to the engine block or other rigid member (aggregate, battery or the like). In particular, this is ensured not only by the continuous compression action of the substructure, but also by increased energy absorption due to deformation of the entire self-supporting body part. In this way, the spacing between the engine blocks or other rigid vehicle members can be reduced by 25% without exceeding the prescribed HPC value (or HIC value or head injury value).

本発明の車体部品の概略図である。It is the schematic of the vehicle body component of this invention. 局所固定手段を備えた、本発明の車体部品の概略図である。It is the schematic of the vehicle body component of this invention provided with the local fixing means. 追加的な衝撃吸収部材を備えた、本発明の車体部品の概略図である。FIG. 3 is a schematic view of a vehicle body part of the present invention provided with an additional shock absorbing member. 衝撃遅延の経時的進行に関する比較計測曲線である。It is a comparative measurement curve regarding progress of impact delay with time. 局所的にオメガ形状のゆがみが配置された基礎構造体を含む、本発明の車体部品の概略図である。It is the schematic of the vehicle body component of this invention containing the foundation structure in which the omega-shaped distortion is arrange | positioned locally. 局所的な圧縮領域をもつ基礎構造体を含む、図５に示された車体部品の概略図である。FIG. 6 is a schematic view of the vehicle body part shown in FIG. 5 including a substructure with local compression regions.

Claims (10)

基礎構造体（７）および外皮（６）から成る自己支持型車体部品であって、前記基礎構造体（７）はオープンセルを有するコア層（２）を含み、前記コア層（２）の騒音放出側にはオープンセルを有する第一カバー層（３）を備え、外皮側には第二カバー層（４）を備え、前記基礎構造体（７）は適切な取付け手段（５）によって外皮（６）に取り付けられ、自己支持型車体部品（１）全体のＨＰＣ値は１０００未満であり、騒音放出側のカバー層（３）の空気抵抗は２００〜５０００Ｎｓ／ｍ3である自己支持型車体部品。 A self-supporting vehicle body part comprising a base structure (7) and a skin (6), wherein the base structure (7) includes a core layer (2) having an open cell, and the noise of the core layer (2) A first cover layer (3) having an open cell is provided on the discharge side, a second cover layer (4) is provided on the outer skin side, and the substructure (7) is provided with an outer shell (5) by suitable attachment means (5). 6) The self-supporting car body part (1) has an HPC value of less than 1000 and the noise resistance side cover layer (3) has an air resistance of 200 to 5000 Ns / m 3. . 前記基礎構造体（７）が、車両構造部品を形成するように設計される請求項１に記載の自己支持型車体部品。   Self-supporting body part according to claim 1, wherein the foundation structure (7) is designed to form a vehicle structural part. 前記基礎構造体（７）が、前記外皮（６）と組み合わせて車両構造部品を形成するように設計される請求項１に記載の自己支持型車体部品。   Self-supporting body part according to claim 1, wherein the foundation structure (7) is designed to form a vehicle structural part in combination with the outer skin (6). 前記取付け手段（５）が、粘着性フィルム、熱可塑性フィルム、標準的な接着材料または機械的手段を含む、請求項１〜３に記載の自己支持型車体部品。   Self-supporting body part according to claims 1-3, wherein the attachment means (5) comprises an adhesive film, a thermoplastic film, a standard adhesive material or mechanical means. 請求項１に記載の車体部品の組立に適した、コア層（２）、オープンセルを有する第一カバー層（３）および第二カバー層（４）から成る基礎構造体（２，３，４）。   A base structure (2, 3, 4) comprising a core layer (2), a first cover layer (3) having an open cell, and a second cover layer (4) suitable for assembling a vehicle body part according to claim 1. ). 前記オープンセルを有するコア層（２）がハニカム状の層である請求項５に記載の基礎構造体。   The foundation structure according to claim 5, wherein the core layer (2) having the open cells is a honeycomb layer. 前記オープンセルを有するコア層（２）の圧縮抵抗が１００ＫＰａ〜１０００ＫＰａの範囲である請求項５に記載の基礎構造体。   The foundation structure according to claim 5, wherein the compression resistance of the core layer (2) having the open cells is in a range of 100 KPa to 1000 KPa. 前記第一カバー層（３）の空気抵抗は２００〜５０００Ｎｓ／ｍ3である請求項５〜７の一つに記載の基礎構造体。 The air resistance of said 1st cover layer (3) is 200-5000Ns / m < 3 >, The foundation structure of one of Claims 5-7. 局所的にさらにハニカム状の層（８）が追加して設けられている請求項５〜８の一つに記載の基礎構造体。   9. A substructure according to claim 5, further comprising a honeycomb layer (8) additionally provided locally. オメガ形状のゆがみおよび／または局所的な圧縮領域（１２、１３）を有する請求項５〜９の一つに記載の基礎構造体。
10. Substructure according to one of claims 5 to 9, having omega-shaped distortion and / or local compression region (12, 13).
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EP1718457A1 (en) 2006-11-08
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BRPI0418510A (en) 2007-05-15

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