JP2011207342A - Reinforcement structure for vehicle - Google Patents

Reinforcement structure for vehicle Download PDF

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JP2011207342A
JP2011207342A JP2010077028A JP2010077028A JP2011207342A JP 2011207342 A JP2011207342 A JP 2011207342A JP 2010077028 A JP2010077028 A JP 2010077028A JP 2010077028 A JP2010077028 A JP 2010077028A JP 2011207342 A JP2011207342 A JP 2011207342A
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duct
vehicle
reinforcing structure
rib
vehicle reinforcing
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Nobuhiro Terai
伸弘 寺井
Toshiro Shibagaki
敏郎 柴垣
Shigeru Yabutani
茂 藪谷
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Toyoda Gosei Co Ltd
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Abstract

PROBLEM TO BE SOLVED: To provide a lightweight reinforcement structure for a vehicle having rigidity with a degree capable of reinforcing a front part structure of the vehicle.SOLUTION: The reinforcement structure for the vehicle is constituted by a composite duct part 1 in which two side ducts 3, 4 and a center duct 2 are integrated; and a lattice-like rib part 6 integrated on an upper surface and/or a lower surface of the composite duct part 1. Further, a thin portion is provided on the two side ducts 3, 4, and the rib part 6 is arranged on at least an upper surface and/or a lower surface of the thin portion.

Description

本発明は、インストルメントパネルの裏側に配設される車両用補強構造体に関する。   The present invention relates to a vehicle reinforcing structure disposed on the back side of an instrument panel.

インストルメントパネルの裏側には、インパネリンホースや空調用ダクト等の部材が配設される。このうちインパネリンホースは車両の前部構造を補強する補強部材である。インパネリンホースには、インストルメントパネルやその周辺部品(空調用ダクト、ステアリングコラム等)が固定される。このためインパネリンホースには比較的高い剛性が要求される。一般には、インパネリンホースの材料として鉄等の比較的剛性の高い金属材料を採用することで、インパネリンホースの剛性を高めている。   Members such as an instrument panel hose and an air conditioning duct are disposed on the back side of the instrument panel. Of these, the instrument panel hose is a reinforcing member that reinforces the front structure of the vehicle. An instrument panel and its peripheral parts (air conditioning duct, steering column, etc.) are fixed to the instrument panel hose. For this reason, a relatively high rigidity is required for the instrument panel hose. In general, the rigidity of the instrument panel hose is increased by adopting a relatively rigid metal material such as iron as the material of the instrument panel hose.

ところで、近年では、車両全体を軽量化する目的で、種々の部材を軽量化することが求められている。インパネリンホースを軽量化する方法としては、インパネリンホースを樹脂材料で形成する方法が考えられる。しかしインパネリンホースを単に樹脂製にするだけでは、インパネリンホースの剛性が不足する問題があった。   In recent years, it has been required to reduce the weight of various members in order to reduce the weight of the entire vehicle. As a method for reducing the weight of the instrument panel hose, a method of forming the instrument panel hose from a resin material can be considered. However, there is a problem that the rigidity of the instrument panel hose is insufficient if the instrument panel hose is simply made of resin.

特許文献1には、インパネリンホース(クロスビーム)をインストルメントパネル(中間パネル)および空調用ダクトと一体化した車両用補強構造体が提案されている。また引用文献1には、この車両用補強構造体の材料として樹脂材料の一種であるFRPを選択できる旨が記載されている。しかしこの場合には車両用補強構造体が大型化し、車両に対する組み付け性に劣る問題があった。また、インパネリンホース、インストルメントパネルおよび空調用ダクトを単に一体化しただけの車両用補強構造体は、さほど軽量化できない問題があった。   Patent Document 1 proposes a vehicle reinforcing structure in which an instrument panel hose (cross beam) is integrated with an instrument panel (intermediate panel) and an air conditioning duct. Further, cited document 1 describes that FRP, which is a kind of resin material, can be selected as the material of the vehicle reinforcing structure. However, in this case, there is a problem that the reinforcing structure for a vehicle is increased in size and inferior in assemblability with respect to the vehicle. Moreover, the vehicle reinforcing structure in which the instrument panel hose, the instrument panel, and the air conditioning duct are simply integrated has a problem that the weight cannot be reduced so much.

特表2002−504039号公報Special table 2002-504039 gazette

本発明は上記事情に鑑みてなされたものであり、軽量でありかつ車両の前部構造を補強できる程度の剛性を持つ車両用補強構造体を提供することを目的とする。   The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a vehicle reinforcing structure that is lightweight and has rigidity sufficient to reinforce the front structure of the vehicle.

上記課題を解決する本発明の車両用補強構造体は、樹脂材料製でありインストルメントパネルの裏側に配置される車両用補強構造体であって、
筒状をなす二つのサイドダクトと、筒状をなし二つの該サイドダクトの間に配置されているセンターダクトと、が一体化されてなり、空調装置に接続される複合ダクト部と、
該複合ダクト部の上面および/または下面に突設されている複数のリブが格子状に一体化されてなるリブ部と、を持ち、
二つの該サイドダクトは、流路断面の車幅方向の長さを上下方向の長さで除した値が4以上となる薄型部を持ち、
該リブ部は少なくとも該薄型部の上面および/または下面に配置されていることを特徴とする。
The vehicle reinforcement structure of the present invention that solves the above problems is a vehicle reinforcement structure made of a resin material and disposed on the back side of an instrument panel,
Two side ducts that form a cylindrical shape, and a center duct that is cylindrical and disposed between the two side ducts are integrated, and a composite duct portion that is connected to an air conditioner,
A plurality of ribs projecting from the upper surface and / or the lower surface of the composite duct portion, and a rib portion integrated in a lattice shape,
The two side ducts have a thin portion where the value obtained by dividing the length in the vehicle width direction of the flow path cross section by the length in the vertical direction is 4 or more,
The rib portion is arranged at least on the upper surface and / or the lower surface of the thin portion.

本発明の車両用補強構造体は、下記の(1)または(2)を備えるのが好ましく、(1)および(2)を備えるのがより好ましい。   The vehicle reinforcing structure of the present invention preferably includes the following (1) or (2), and more preferably includes (1) and (2).

(1)前記薄型部の上下方向の長さは20mm以下である。   (1) The length of the thin part in the vertical direction is 20 mm or less.

(2)前記センターダクトおよび前記サイドダクトの少なくとも一部は一体成形されている。   (2) At least a part of the center duct and the side duct are integrally formed.

一般的な空調用ダクトはセンターダクトおよびサイドダクトを持つ。センターダクトは、車両前部において車幅方向の略中央に配置される部材である。サイドダクトは車両前部において車幅方向の端側に配置される部材である。一般的には、センターダクトとサイドダクトとは別体であり、それぞれ車両用空調装置に接続される。本発明の車両用補強構造体は、従来別体であったセンターダクトとサイドダクトとを一体化して複合ダクト部とし、かつ、複合ダクト部の外面に格子状のリブ部を設けたものである。   A typical air conditioning duct has a center duct and a side duct. The center duct is a member that is disposed at the approximate center in the vehicle width direction at the front of the vehicle. The side duct is a member disposed on the end side in the vehicle width direction at the front portion of the vehicle. In general, the center duct and the side duct are separate bodies, and each is connected to the vehicle air conditioner. The vehicle reinforcing structure according to the present invention is a composite duct portion obtained by integrating a center duct and a side duct, which have been conventionally separated, and a grid-like rib portion is provided on the outer surface of the composite duct portion. .

本発明の車両用補強構造体における複合ダクト部は、センターダクトとサイドダクトとが一体化されたことで剛性に優れる。   The composite duct portion in the vehicle reinforcing structure of the present invention is excellent in rigidity because the center duct and the side duct are integrated.

また、本発明の車両用補強構造体は、格子状をなすリブ部によって補強されていることによっても、剛性に優れる。   The vehicle reinforcing structure according to the present invention is also excellent in rigidity by being reinforced by ribs having a lattice shape.

さらに、二つのサイドダクトに薄型部を設けたことで、少なくともこの薄型部の上面および/または下面に配置されているリブ部の突出高さを大きくでき、リブ部の剛性をさらに高めることができる。その結果、本発明の車両用補強構造体の剛性はさらに向上する。また、薄型部は二つのサイドダクト両方に設けられるため、本発明の車両用補強構造体における二つのサイドダクトにはリブ部が設けられている。このため、本発明の車両用補強構造体は、長手方向の2端部(換言すると、本発明の車両用補強構造体における車幅方向の2端部)の剛性に優れ、全体の剛性にも優れる。   Furthermore, by providing the thin portions in the two side ducts, it is possible to increase the protruding height of the rib portions disposed on at least the upper surface and / or the lower surface of the thin portions, and to further increase the rigidity of the rib portions. . As a result, the rigidity of the vehicle reinforcing structure of the present invention is further improved. Moreover, since a thin part is provided in both two side ducts, the rib part is provided in the two side ducts in the reinforcement structure for vehicles of this invention. For this reason, the vehicle reinforcing structure of the present invention has excellent rigidity at the two ends in the longitudinal direction (in other words, two ends in the vehicle width direction of the vehicle reinforcing structure of the present invention). Excellent.

本発明の車両用補強構造体は、剛性に優れるため、インパネリンホースに要求される剛性の一部または全部を担うことができる。このため、本発明の車両用補強構造体を配設した車両においては、インパネリンホースが不要になるか、または、剛性に劣るインパネリンホースに不足する剛性を本発明の車両用補強構造体で補うことができる。さらに、本発明の補強構造体は樹脂材料製であるために軽量である。   Since the vehicle reinforcing structure of the present invention is excellent in rigidity, it can bear part or all of the rigidity required for the instrument panel hose. For this reason, in the vehicle in which the vehicle reinforcement structure of the present invention is disposed, the instrument panel hose is not required or the rigidity insufficient for the instrument panel hose inferior in rigidity is provided by the vehicle reinforcement structure of the present invention. Can be supplemented. Furthermore, since the reinforcing structure of the present invention is made of a resin material, it is lightweight.

なお、本発明の車両用補強構造体はインストルメントパネルを含まないため、比較的小型であり、車両に対する組み付け性に優れる。   In addition, since the reinforcement structure for vehicles of this invention does not contain an instrument panel, it is comparatively small and is excellent in the assembly | attachment property with respect to a vehicle.

上記(1)を備える本発明の車両用補強構造体は、薄型部の上下方向の長さが充分に小さいために、薄型部の上面および/または下面に突出高さの大きなリブ部を配置できる。   In the vehicle reinforcing structure of the present invention having the above (1), since the vertical length of the thin portion is sufficiently small, a rib portion having a large protruding height can be disposed on the upper surface and / or the lower surface of the thin portion. .

上記(2)を備える本発明の車両用補強構造体は、センターダクトおよびサイドダクトの少なくとも一部を一体成形したことで、さらに剛性に優れ、かつ軽量化できる。   The vehicular reinforcing structure of the present invention having the above (2) can be further improved in rigidity and weight by integrally forming at least a part of the center duct and the side duct.

本発明の車両用補強構造体における薄型部の内部の一例を模式的に表す説明図である。It is explanatory drawing which represents typically an example of the inside of the thin part in the reinforcement structure for vehicles of this invention. 実施例の車両用補強構造体を模式的に表す斜視図である。It is a perspective view showing typically a reinforcing structure for vehicles of an example. 実施例の車両用補強構造体を模式的に表す上面図である。It is a top view which represents typically the reinforcement structure for vehicles of an Example. 実施例の車両用補強構造体を図3中A−A位置で切断した様子を模式的に表す断面図である。It is sectional drawing which represents typically a mode that the reinforcement structure for vehicles of an Example was cut | disconnected in the AA position in FIG. 実施例の車両用補強構造体を図3中B−B位置で切断した様子を模式的に表す断面図である。It is sectional drawing which represents typically a mode that the reinforcement structure for vehicles of an Example was cut | disconnected in the BB position in FIG. 実施例の車両用補強構造体における運転席側サイドダクトの内部を模式的に表す説明図である。It is explanatory drawing which represents typically the inside of the driver's seat side side duct in the reinforcement structure for vehicles of an Example.

本発明の車両用補強構造体は樹脂材料製である。樹脂材料としては、例えば、FRP(繊維強化樹脂)、ガラス入りポリプロピレン等の比較的剛性に優れる材料を用いるのが好ましい。特にFRPは剛性に優れるために好ましく使用できる。FRP用の繊維としては、ガラス繊維、炭素繊維等の高剛性繊維を用いるのが好ましい。なおFRP用の繊維として繊維長1〜2mm程度の短繊維を用いれば、FRP製の車両用補強構造体を射出成形法や射出プレス成形法により容易に製造できる。   The vehicle reinforcing structure of the present invention is made of a resin material. As the resin material, it is preferable to use a material having relatively high rigidity, such as FRP (fiber reinforced resin) and glass-filled polypropylene. In particular, FRP can be preferably used because of its excellent rigidity. As the fiber for FRP, it is preferable to use high-rigidity fibers such as glass fibers and carbon fibers. If a short fiber having a fiber length of about 1 to 2 mm is used as the fiber for FRP, a vehicle reinforcing structure made of FRP can be easily manufactured by an injection molding method or an injection press molding method.

本発明の車両用補強構造体は、センターダクトを挟んで配置される二つのサイドダクトを持てば良い。一方のサイドダクトは、車両の運転席側に配置される運転席側サイドダクトであり、他方のサイドダクトは車両の助手席側に配置される助手席側サイドダクトである。本発明の車両用補強構造体は、二つのサイドダクトを持つために、車幅方向のほぼ全体にわたって配設される。このため、車両用補強構造体によって車両前部を車幅方向のほぼ全体にわたって補強でき、インパネリンホースを設けない場合や、比較的強度に劣るインパネリンホースを設けた場合にも、車両前部を充分に補強できる。なお、本発明の車両用補強構造体は、二つのサイドダクト以外のサイドダクトやセンターダクトを持っても良い。   The vehicle reinforcing structure according to the present invention may have two side ducts arranged with the center duct interposed therebetween. One side duct is a driver seat side side duct disposed on the driver seat side of the vehicle, and the other side duct is a passenger seat side side duct disposed on the passenger seat side of the vehicle. Since the vehicle reinforcing structure according to the present invention has two side ducts, the vehicle reinforcing structure is disposed over substantially the entire vehicle width direction. For this reason, the vehicle front portion can be reinforced over almost the entire vehicle width direction by the vehicle reinforcing structure, and even when no instrument panel hose is provided or when an instrument panel hose having a relatively low strength is provided, Can be sufficiently reinforced. The vehicle reinforcing structure of the present invention may have a side duct or a center duct other than the two side ducts.

本発明の車両用補強構造体において、センターダクトやサイドダクトの形状は特に限定されない。例えばセンターダクトやサイドダクトは直筒状であっても良いし湾曲筒状であっても良い。また、センターダクトやサイドダクトは断面矩形状であっても良いし、断面円形状、断面楕円形状等の他の形状であっても良い。センターダクトやサイドダクトにおける吹き出し口もまた同様である。   In the vehicle reinforcing structure of the present invention, the shape of the center duct and the side duct is not particularly limited. For example, the center duct and the side duct may be straight cylinders or curved cylinders. Further, the center duct and the side duct may have a rectangular cross section, or may have other shapes such as a circular cross section and an elliptical cross section. The same applies to the outlets in the center duct and the side duct.

複合ダクト部を構成するセンターダクトと二つのサイドダクトとは、一体化していれば良く、その内部は連通していても良いし連通していなくても良い。また、センターダクトとサイドダクトとの間には、部分的な間隙があっても良い。さらに、この間隙に、小物入れ等の収容装置やエアバッグ装置等を収容する収容部を設けても良い。この場合には、車両用補強構造体に収容されたエアバッグ装置や収容装置によって車両用補強構造体を補強できるため、車両用補強構造体の剛性がさらに向上する。   The center duct and the two side ducts constituting the composite duct portion may be integrated, and the inside thereof may be communicated or may not be communicated. Further, there may be a partial gap between the center duct and the side duct. Further, a storage unit for storing a storage device such as an accessory case or an airbag device may be provided in the gap. In this case, since the vehicle reinforcement structure can be reinforced by the airbag device or the accommodation device accommodated in the vehicle reinforcement structure, the rigidity of the vehicle reinforcement structure is further improved.

本発明の車両用補強構造体は、インパネリンホースとして使用することもできるし、インパネリンホースと併用することもできる。すなわち、本発明の車両用補強構造体を配設した車両には、インパネリンホースを配設しても良いし、インパネリンホースを配設しなくても良い。本発明の車両用補強構造体をインパネリンホースと併用する場合には、インパネリンホースとして例えば樹脂製やFRP製等の軽量かつ比較的剛性に劣るものを用いることができる。本発明の車両用補強構造体は、従来のインパネリンホースと同様に、車両のピラーインナ等に固定すれば良い。また、従来のインパネリンホースと同様に、本発明の車両用補強構造体にはインストルメントパネルやその周辺部材を固定できる。   The vehicle reinforcing structure of the present invention can be used as an instrument panel hose, or can be used in combination with an instrument panel hose. In other words, the instrument panel hose may or may not be disposed in the vehicle in which the vehicle reinforcing structure of the present invention is disposed. When the vehicle reinforcing structure of the present invention is used in combination with an instrument panel hose, an instrument panel hose that is light and relatively inferior in rigidity such as resin or FRP can be used. The vehicle reinforcing structure of the present invention may be fixed to a vehicle pillar inner or the like in the same manner as a conventional instrument panel hose. Similarly to the conventional instrument panel hose, an instrument panel and its peripheral members can be fixed to the vehicle reinforcing structure of the present invention.

本発明の車両用補強構造体における複合ダクト部の上面および/または下面には、複数のリブが突設されている。この複数のリブは、格子状に一体化されてリブ部を構成している。各リブ部は、複合ダクト部の上面および/または下面に配置されているため、複合ダクト部の外面に露出している。したがってリブ部は、複合ダクト部の内部(すなわち空調空気の流路)には干渉しない。リブ部は複合ダクト部の上面のみに設けても良いし、下面のみに設けても良いし、上面と下面との両方に設けても良い。また、リブ部を構成するリブ以外のリブを、複合ダクト部に設けても良い。例えば、複合ダクト部の下面にリブ部を設け、側面にリブ部を構成しないリブを設けても良い。何れの場合にも、格子状をなすリブ部によって複合ダクト部が補強され、車両用補強構造体の上下方向、左右方向および前後方向における耐衝撃性が向上する。また、格子状をなすリブ部により、衝撃発生時のエネルギを吸収することもできる。なお、本発明の車両用補強構造体に上述した収容部を設ける場合、収容部の下方および/または上方にもリブ部を配置するのが好ましい。   A plurality of ribs project from the upper surface and / or the lower surface of the composite duct portion in the vehicle reinforcing structure of the present invention. The plurality of ribs are integrated in a lattice shape to form a rib portion. Since each rib part is arrange | positioned at the upper surface and / or lower surface of a composite duct part, it is exposed to the outer surface of a composite duct part. Therefore, the rib portion does not interfere with the inside of the composite duct portion (that is, the flow path of the conditioned air). The rib portion may be provided only on the upper surface of the composite duct portion, may be provided only on the lower surface, or may be provided on both the upper surface and the lower surface. Moreover, you may provide ribs other than the rib which comprises a rib part in a composite duct part. For example, a rib portion may be provided on the lower surface of the composite duct portion, and a rib that does not constitute the rib portion may be provided on the side surface. In any case, the composite duct portion is reinforced by the rib portions having a lattice shape, and the impact resistance in the vertical direction, the horizontal direction, and the front-rear direction of the vehicle reinforcing structure is improved. Further, the energy at the time of impact generation can be absorbed by the rib portion having a lattice shape. In addition, when providing the accommodating part mentioned above in the reinforcement structure for vehicles of this invention, it is preferable to arrange | position a rib part also below and / or above an accommodating part.

リブ部は格子状であれば良く、四方格子であっても良いし、六方格子(ハニカム)であっても良い。その他の格子形状であっても良い。リブの個数や間隔は特に限定しない。リブの個数が多ければ車両用補強構造体の剛性が向上する。リブの個数が少なければ車両用補強構造体が軽量化する。したがってリブの個数は車両用補強構造体に要求される剛性や質量に応じて、適宜決定すれば良い。   The rib part may be a lattice shape, and may be a tetragonal lattice or a hexagonal lattice (honeycomb). Other lattice shapes may be used. The number and interval of ribs are not particularly limited. If the number of ribs is large, the rigidity of the vehicle reinforcing structure is improved. If the number of ribs is small, the vehicle reinforcing structure is reduced in weight. Therefore, the number of ribs may be appropriately determined according to the rigidity and mass required for the vehicle reinforcing structure.

本発明の車両用補強構造体の剛性を向上させるためには、リブの突出長さ(上下方向の長さ)を大きくするのが好ましい。薄型部の上面および/または下面に突設されているリブ(長リブと呼ぶ)の突出高さは、30mm以上であるのが好ましく、50mm以上であるのがより好ましい。複合ダクト部のなかで薄型部以外の部分の上面および/または下面に突設されているリブ(短リブと呼ぶ)の突出高さは長リブの突出高さよりも短く、20mm以上であるのが好ましく、30mm以上であるのがより好ましい。   In order to improve the rigidity of the vehicle reinforcing structure of the present invention, it is preferable to increase the protruding length (vertical length) of the rib. The protruding height of the ribs (referred to as long ribs) protruding from the upper surface and / or the lower surface of the thin portion is preferably 30 mm or more, and more preferably 50 mm or more. The protruding height of ribs (referred to as short ribs) protruding from the upper surface and / or the lower surface of the portion other than the thin portion in the composite duct portion is shorter than the protruding height of the long rib and is 20 mm or more. Preferably, it is 30 mm or more.

ところで、空調用ダクトから流出する空調空気の方向や風速は、吹き出し口の形状に依存する傾向がある。以下、センターダクトおよびサイドダクトを総称してダクトと呼ぶ。また、ダクトの任意の流路断面において車幅方向の長さを上下方向の長さで除した値を、この任意の流路断面のアスペクト比と呼ぶ。薄型部のアスペクト比とは、薄型部における任意の流路断面のアスペクト比を指す。また、吹き出し口は流路断面の一つであり、吹き出し口のアスペクト比とは、吹き出し口の車幅方向の長さを吹き出し口の上下方向の長さで除した値である。なお、ここでいう車幅方向、上下方向とは、車両に取り付けたときの各方向を指す。また、ダクトにおける吹き出し口以外の部分をダクト本体と呼ぶ。以下、吹き出し口のアスペクト比が4未満のダクトを厚型ダクトと呼び、吹き出し口のアスペクト比が4以上のダクトを薄型ダクトと呼ぶ。   By the way, the direction and wind speed of the conditioned air flowing out from the air conditioning duct tend to depend on the shape of the outlet. Hereinafter, the center duct and the side duct are collectively referred to as a duct. Further, a value obtained by dividing the length in the vehicle width direction by the length in the vertical direction in an arbitrary channel cross section of the duct is referred to as an aspect ratio of the arbitrary channel cross section. The aspect ratio of the thin portion refers to the aspect ratio of an arbitrary channel cross section in the thin portion. The outlet is one of the cross sections of the flow path, and the aspect ratio of the outlet is a value obtained by dividing the length of the outlet in the vehicle width direction by the vertical length of the outlet. In addition, the vehicle width direction and the up-down direction here refer to each direction when attached to the vehicle. Further, a portion other than the outlet in the duct is called a duct body. Hereinafter, a duct having an air outlet having an aspect ratio of less than 4 is referred to as a thick duct, and a duct having an air outlet having an aspect ratio of 4 or more is referred to as a thin duct.

一般に、厚型ダクトから流出する空調空気は、拡散し難く、かつ、比較的風速が大きい。これに対して、薄型ダクトから流出する空調空気は、エアカーテンのように、吹き出し口の長手方向に拡散し易く、かつ、比較的風速が小さい。本発明の車両用補強構造体におけるサイドダクトは、薄型部を持てば良く、薄型ダクトであっても良いし、厚型ダクトであっても良いが、薄型ダクトであるのが好ましい。サイドダクトは運転席や助手席などの座席の近傍に配設される。このため、サイドダクトが薄型ダクトであれば、風速の大きな空調空気が直接乗員にあたり難くなり、冷暖房時に生じる乗員の不快感を抑制できる。   In general, conditioned air flowing out of a thick duct is difficult to diffuse and has a relatively high wind speed. On the other hand, the conditioned air flowing out from the thin duct is likely to diffuse in the longitudinal direction of the outlet, like an air curtain, and has a relatively low wind speed. The side duct in the vehicle reinforcing structure of the present invention may have a thin portion, and may be a thin duct or a thick duct, but is preferably a thin duct. The side duct is disposed in the vicinity of a seat such as a driver seat or a passenger seat. For this reason, if the side duct is a thin duct, it becomes difficult for the conditioned air having a high wind speed to directly hit the occupant, and the occupant's discomfort that occurs during cooling and heating can be suppressed.

サイドダクトにおける吹き出し口のアスペクト比と薄型部のアスペクト比とは同じであっても良いし異なっていても良い。また、薄型部のアスペクト比は一定であっても良いし、部分毎に異なっていても良い。さらに、ダクト本体における薄型部以外の部分のアスペクト比は4未満であっても良い。   The aspect ratio of the outlet in the side duct and the aspect ratio of the thin portion may be the same or different. Further, the aspect ratio of the thin part may be constant or may be different for each part. Furthermore, the aspect ratio of the portion other than the thin portion in the duct body may be less than 4.

ダクト本体の一部におけるアスペクト比が4未満であり、かつ、吹き出し口のアスペクト比が4以上である薄型ダクトは、吹き出し口方向に拡径する。この場合、薄型ダクトの内部には、薄型ダクトの内部を流通する空調空気を、吹き出し口における長手方向の端部(車幅方向の端部)に向けて案内する整流部を設けるのが好ましい。整流部を設けることで、薄型ダクト内の空調空気を吹き出し口における車幅方向の端部に分配でき、吹き出し口全体から略均一に流出させ得る。具体的には、図1に示すようにダクト本体35の軸線L1と、吹き出し口34の両端部37、38とが大きく離間している場合には、吹き出し口34における長手方向の両端部37、38およびこれに連続する薄型部39が、ダクト本体35におけるアスペクト比4未満の部分(薄型部39以外の部分、一般部36と呼ぶ)の外側に大きく張り出す。軸線L1と、吹き出し口34の一端部37(または38)とが大きく離間している場合には、吹き出し口34における長手方向の一端部37(または38)が一般部36の外側に大きく張り出す。この場合、整流部7のなかで空調空気の下流側に位置する端部(吹き出し口34側に位置する端部、整流部7の下流端部71と呼ぶ)は、薄型部39の内部において、吹き出し口34のなかで一般部36の外側に張り出している側の端部(張り出し端部と呼ぶ、図1では左端部37および右端部38)に向けて湾曲しているのが好ましい。図1に示すように吹き出し口34の長手方向の両端部37、38が張り出し端部である場合には、整流部7の下流端部71は、薄型部39の内部において二股に分岐(71a、71b)し、各々が別の張り出し端部37、38に向けて湾曲しているのが好ましい。整流部7をこのような形状にすることで、吹き出し口34の張り出し端部37、38に空調空気を分配できる。また、整流部7のなかで空調空気の上流側に位置する端部(上流端部70と呼ぶ)は、一般部36の内部に配置され、直状をなすのが好ましい。張り出し端部37、38を持つダクトにおいては、吹き出し口34付近における空調空気は一般部の軸線L1(延長線を含む)側に偏向する。しかし整流部7の上流端部70を一般部36の内部に配置し、かつ直状にすることで、偏向する前の空調空気を張り出し端部37、38に向けて分配できる。このため、空調空気を効率良く張り出し端部に分配でき、吹き出し口34の全体から略均一に流出させ得る。   A thin duct having an aspect ratio of less than 4 in a part of the duct main body and an aspect ratio of the outlet of 4 or more expands in the direction of the outlet. In this case, it is preferable to provide a rectification unit that guides the conditioned air flowing through the thin duct toward the end in the longitudinal direction (end in the vehicle width direction) at the outlet. By providing the rectifying unit, the conditioned air in the thin duct can be distributed to the end of the outlet in the vehicle width direction, and can flow out substantially uniformly from the entire outlet. Specifically, as shown in FIG. 1, when the axis L1 of the duct main body 35 and the both end portions 37, 38 of the blowout port 34 are largely separated from each other, both end portions 37 in the longitudinal direction of the blowout port 34, 38 and the thin portion 39 continuous thereto greatly project outside the portion of the duct body 35 having an aspect ratio of less than 4 (the portion other than the thin portion 39, referred to as the general portion 36). When the axis L1 and the one end portion 37 (or 38) of the blowout port 34 are largely separated from each other, the one end portion 37 (or 38) in the longitudinal direction of the blowout port 34 protrudes greatly outside the general portion 36. . In this case, the end portion located on the downstream side of the conditioned air in the rectifying unit 7 (the end portion located on the outlet 34 side, referred to as the downstream end portion 71 of the rectifying unit 7) is located inside the thin portion 39. It is preferable that the air outlet 34 bends toward an end portion (referred to as an overhanging end portion, left end portion 37 and right end portion 38 in FIG. 1) that protrudes outside the general portion 36. As shown in FIG. 1, when both end portions 37, 38 in the longitudinal direction of the outlet 34 are overhanging end portions, the downstream end portion 71 of the rectifying portion 7 is bifurcated inside the thin portion 39 (71 a, 71b) and each is preferably curved toward a different overhanging end 37,38. By making the rectifying unit 7 into such a shape, the conditioned air can be distributed to the projecting ends 37 and 38 of the outlet 34. Moreover, it is preferable that the edge part (it calls the upstream edge part 70) located in the upstream of conditioned air in the rectification | straightening part 7 is arrange | positioned inside the general part 36, and makes straight shape. In the duct having the overhanging end portions 37 and 38, the conditioned air in the vicinity of the air outlet 34 is deflected to the axis L1 (including the extension line) side of the general portion. However, by arranging the upstream end portion 70 of the rectifying unit 7 inside the general portion 36 and making it straight, the conditioned air before being deflected can be distributed toward the projecting end portions 37 and 38. For this reason, the conditioned air can be efficiently distributed to the overhanging end portion, and can flow out substantially uniformly from the entire outlet 34.

本発明の車両用補強構造体は、その他、デフロスタノズル等を一体化しても良い。   In addition, the vehicle reinforcing structure of the present invention may be integrated with a defroster nozzle or the like.

以下、本発明の車両用補強構造体を具体的に説明する。   Hereinafter, the vehicle reinforcing structure of the present invention will be described in detail.

(実施例1)
実施例1の車両用補強構造体は、右ハンドルの自動車に配設される車両用補強構造体である。実施例1の車両用補強構造体を模式的に表す斜視図を図2に示す。実施例1の車両用補強構造体を模式的に表す上面図を図3に示す。実施例1の車両用補強構造体を模式的に表す断面図を図4、図5に示す。実施例1の車両用補強構造体における運転席側サイドダクトの内部を模式的に表す説明図を図6に示す。なお、図4は実施例1の車両用補強構造体を図3中A−A位置で切断した様子を表す。図5は実施例1の車両用補強構造体を図3中B−B位置で切断した様子を表す。以下、本明細書において、上、下、左、右、前、後とは、図2に示す上、下、左、右、前、後を指す。車幅方向とは、図2に示す左右方向を指す。
Example 1
The vehicle reinforcing structure according to the first embodiment is a vehicle reinforcing structure disposed in a right-hand drive automobile. FIG. 2 is a perspective view schematically showing the vehicle reinforcing structure of the first embodiment. FIG. 3 is a top view schematically showing the vehicle reinforcing structure according to the first embodiment. 4 and 5 are cross-sectional views schematically showing the vehicle reinforcing structure of the first embodiment. FIG. 6 is an explanatory view schematically showing the inside of the driver side side duct in the vehicle reinforcing structure of the first embodiment. FIG. 4 shows a state in which the vehicle reinforcing structure of the first embodiment is cut at the position AA in FIG. FIG. 5 shows a state in which the vehicle reinforcing structure according to the first embodiment is cut at the position BB in FIG. Hereinafter, in the present specification, “up, down, left, right, front, and rear” refers to the top, bottom, left, right, front, and back shown in FIG. The vehicle width direction refers to the left-right direction shown in FIG.

図2〜図5に示すように、実施例1の車両用補強構造体は複合ダクト部1とリブ部6とを持つ。実施例1の車両用補強構造体はガラス繊維とポリプロピレンとを材料とするFRP製(密度1.22g/cm)であり、射出成形されたものである。 As shown in FIGS. 2 to 5, the vehicle reinforcing structure of the first embodiment has a composite duct portion 1 and a rib portion 6. The vehicle reinforcing structure of Example 1 is made of FRP (density 1.22 g / cm 3 ) made of glass fiber and polypropylene, and is injection-molded.

図2、図3に示すように、複合ダクト部1は、センターダクト2と、運転席側サイドダクト3と、助手席側サイドダクト4と、デフロスタノズル5と、をそれぞれ1つずつ持つ。センターダクト2、運転席側サイドダクト3、助手席側サイドダクト4、およびデフロスタノズル5は、それぞれ筒状をなしている。複合ダクト部1の上側部10と下側部11とは別体で成形され、溶着されて一体化されている。複合ダクト部1の上側部10は、センターダクト2の上壁20、運転席側サイドダクト3の上壁30および助手席側サイドダクト4の上壁40で構成されている。複合ダクト部1の下側部11は、センターダクト2の下壁22および側壁23、運転席側サイドダクト3の下壁32および側壁33、助手席側サイドダクト4の下壁(図略)および側壁43、およびデフロスタノズル5で構成されている。センターダクト2は略前後方向に延びている。運転席側サイドダクト3は略左右方向に延びている。助手席側サイドダクト4は略左右方向に延びている。デフロスタノズル5は略上下方向に延びている。センターダクト2の前端部、運転席側サイドダクト3の左端部、助手席側サイドダクト4の右端部、およびデフロスタノズル5の下端部は、一体化され、図略の車両用空調装置に接続されている。   As shown in FIGS. 2 and 3, the composite duct portion 1 has a center duct 2, a driver seat side side duct 3, a passenger seat side side duct 4, and a defroster nozzle 5. The center duct 2, the driver's seat side duct 3, the passenger seat side duct 4, and the defroster nozzle 5 each have a cylindrical shape. The upper part 10 and the lower part 11 of the composite duct part 1 are formed separately and welded and integrated. The upper portion 10 of the composite duct portion 1 is composed of an upper wall 20 of the center duct 2, an upper wall 30 of the driver seat side duct 3, and an upper wall 40 of the passenger seat side duct 4. The lower side portion 11 of the composite duct portion 1 includes a lower wall 22 and a side wall 23 of the center duct 2, a lower wall 32 and a side wall 33 of the driver side side duct 3, a lower wall (not shown) of the passenger side side duct 4 and The side wall 43 and the defroster nozzle 5 are configured. The center duct 2 extends substantially in the front-rear direction. The driver seat side duct 3 extends substantially in the left-right direction. The passenger seat side duct 4 extends substantially in the left-right direction. The defroster nozzle 5 extends substantially in the vertical direction. The front end of the center duct 2, the left end of the driver's seat side duct 3, the right end of the passenger seat side duct 4, and the lower end of the defroster nozzle 5 are integrated and connected to a vehicle air conditioner (not shown). ing.

センターダクト2の吹き出し口24は、センターダクト2の後端部からなる。運転席側サイドダクト3の吹き出し口34は、運転席側サイドダクト3の右端部からなる。助手席側サイドダクト4の吹き出し口44は、助手席側サイドダクト4の左端部からなる。デフロスタノズル5の吹き出し口54は、デフロスタノズル5の上端部からなる。各吹き出し口24〜54は、インストルメントパネル(図略)に形成されている開口部(図略)に取り付けられ、それぞれ車室内に開口する。   The outlet 24 of the center duct 2 is formed from the rear end portion of the center duct 2. The outlet 34 of the driver's seat side duct 3 is formed from the right end portion of the driver's seat side duct 3. The outlet 44 of the passenger seat side duct 4 is formed from the left end of the passenger seat side duct 4. The outlet 54 of the defroster nozzle 5 is formed from the upper end of the defroster nozzle 5. Each of the outlets 24 to 54 is attached to an opening (not shown) formed in the instrument panel (not shown), and opens into the passenger compartment.

センターダクト2の吹き出し口24の上下方向の長さは50mmであり、アスペクト比は3である。センターダクト2のダクト本体25のアスペクト比は1〜4である。運転席側サイドダクト3の薄型部39の上下方向の長さは15mm程度であり、薄型部39のアスペクト比は10〜20である。助手席側サイドダクト4の薄型部49の上下方向の長さは15mm程度であり、薄型部49のアスペクト比は10〜23である。したがって、実施例1の車両用補強構造体における運転席側サイドダクト3および助手席側サイドダクト4は薄型部39、49を持ち、かつ、薄型ダクトである。実施例1の車両用補強構造体における複合ダクト部1の肉厚は約1.6mmである。   The length of the outlet 24 of the center duct 2 in the vertical direction is 50 mm, and the aspect ratio is 3. The aspect ratio of the duct body 25 of the center duct 2 is 1 to 4. The length in the vertical direction of the thin portion 39 of the driver's seat side duct 3 is about 15 mm, and the aspect ratio of the thin portion 39 is 10-20. The length of the thin portion 49 of the passenger side side duct 4 in the vertical direction is about 15 mm, and the aspect ratio of the thin portion 49 is 10-23. Accordingly, the driver's seat side side duct 3 and the passenger seat side side duct 4 in the vehicle reinforcing structure of the first embodiment have the thin portions 39 and 49 and are thin ducts. The thickness of the composite duct portion 1 in the vehicle reinforcing structure of the first embodiment is about 1.6 mm.

複合ダクト部1の下側部11には、リブ部6が一体成形されている。図3に示すように、リブ部6は四方格子状をなす。詳しくは、リブ部6はセンターダクト2、運転席側サイドダクト3および助手席側サイドダクト4の下面に配置され、下方に突出している。リブ部6を構成する各リブ61の肉厚は約2mmであり、隣接するリブ同士の間隔は約32mmである。リブ部6のなかで運転席側サイドダクト3および助手席側サイドダクト4の下面に配置されている部分の突出高さH1は100mmである。リブ部6の他の部分の突出高さH2は30mmである。このため、リブ部6のなかで運転席側サイドダクト3および助手席側サイドダクト4の下面に配置されている部分は長リブ62であり、他の部分は短リブ63である。   A rib portion 6 is formed integrally with the lower portion 11 of the composite duct portion 1. As shown in FIG. 3, the rib portion 6 has a tetragonal lattice shape. In detail, the rib part 6 is arrange | positioned at the lower surface of the center duct 2, the driver's seat side side duct 3, and the passenger seat side duct 4, and protrudes below. The thickness of each rib 61 which comprises the rib part 6 is about 2 mm, and the space | interval of adjacent ribs is about 32 mm. The protrusion height H1 of the part arrange | positioned in the lower surface of the driver's seat side side duct 3 and the passenger seat side side duct 4 in the rib part 6 is 100 mm. The protrusion height H2 of the other part of the rib part 6 is 30 mm. For this reason, the part arrange | positioned in the lower surface of the driver's seat side side duct 3 and the passenger seat side side duct 4 in the rib part 6 is the long rib 62, and the other part is the short rib 63.

運転席側サイドダクト3は薄型部39を持つ。このため、図5に示すように、運転席側サイドダクト3の下面には長リブ62を突設できる。助手席側サイドダクト4もまた薄型部49を持つ。このため、図示しないが、助手席側サイドダクト4の下面にもまた長リブ62を突設できる。センターダクト2は薄型部を持たないため、センターダクト2の下面には短リブ63を突設できる。   The driver's seat side duct 3 has a thin portion 39. For this reason, as shown in FIG. 5, the long rib 62 can protrude from the lower surface of the driver's seat side duct 3. The passenger side side duct 4 also has a thin portion 49. For this reason, although not shown in figure, the long rib 62 can also be protrudingly provided also in the lower surface of the passenger side side duct 4. As shown in FIG. Since the center duct 2 does not have a thin portion, a short rib 63 can project from the lower surface of the center duct 2.

なお、センターダクト2と助手席側サイドダクト4との間には、左右方向に延びる間隙が形成されている。この間隙は、助手席側エアバッグを収容する収容部12を構成している。収容部12の下方にはリブ部6が延設されている。収容部12の下方に位置するリブ部6は短リブ63からなる。収容部12は、助手席側サイドダクト4の側壁43、センターダクト2の側壁23およびリブ部6の上面で区画されている。また、センターダクト2と運転席側サイドダクト3との間には、左右方向に延びる間隙が形成されている。この間隙は、小物入れを収容する収容部13を構成している。収容部13の下方にもまたリブ部6が延設されている。収容部13の下方に位置するリブ部6もまた短リブ63からなる。収容部13は、運転席側サイドダクト3の側壁33、センターダクト2の側壁23およびリブ部6の上面で区画されている。   A gap extending in the left-right direction is formed between the center duct 2 and the passenger side side duct 4. This gap constitutes the accommodating portion 12 that accommodates the passenger seat side airbag. A rib portion 6 extends below the housing portion 12. The rib portion 6 located below the accommodating portion 12 is composed of short ribs 63. The accommodating portion 12 is partitioned by the side wall 43 of the passenger side side duct 4, the side wall 23 of the center duct 2, and the upper surface of the rib portion 6. A gap extending in the left-right direction is formed between the center duct 2 and the driver's seat side duct 3. This gap constitutes an accommodating portion 13 for accommodating an accessory case. A rib portion 6 is also extended below the accommodating portion 13. The rib portion 6 located below the accommodating portion 13 is also composed of short ribs 63. The accommodating portion 13 is partitioned by the side wall 33 of the driver's seat side duct 3, the side wall 23 of the center duct 2, and the upper surface of the rib portion 6.

図6に示すように、運転席側サイドダクト3の内部には立壁状の整流部7が設けられている。整流部7は運転席側サイドダクト3と一体成形されている。運転席側サイドダクト3は、薄型部39以外の部分(アスペクト比4未満の部分)である一般部36を持つ。一般部の軸線L1(延長線を含む)と吹き出し口34の左端部とは大きく離間し、吹き出し口34の左端部、および、これに連続する薄型部39は、一般部36の左側に大きく張り出している。吹き出し口34の左端部を張り出し端部37と呼ぶ。   As shown in FIG. 6, a standing wall-shaped rectification unit 7 is provided inside the driver seat side duct 3. The rectifying unit 7 is integrally formed with the driver side side duct 3. The driver's seat side duct 3 has a general portion 36 that is a portion other than the thin portion 39 (a portion having an aspect ratio of less than 4). The axis L1 (including the extension line) of the general portion and the left end portion of the blowout port 34 are greatly separated from each other, and the left end portion of the blowout port 34 and the thin portion 39 continuous thereto are greatly projected to the left side of the general portion 36. ing. The left end portion of the outlet 34 is referred to as an overhang end portion 37.

整流部7の上流端部70は一般部36の内部に配置され、直状に延びている。整流部7の下流端部71は薄型部39における吹き出し口34の近傍に配置され、張り出し端部37に向けて(すなわち左方向に)湾曲している。整流部7のなかで上流端部70と下流端部71との間の部分(整流中間部72と呼ぶ)は、一般部の軸線L1にほぼ沿って延びている。また、整流中間部72のなかで下流端部71に連続している部分73は直状に延びている。整流部7の上流端部70は、運転席側サイドダクト3の内部を流通する空調空気の一部を、偏向する前に、張り出し端部37に向けて案内する。また直状部分73は、上流端部70が案内した空調空気を整流する。下流端部71は、直状部分73が整流した空調空気を吹き出し口34の張り出し端部37に向けて案内する。このため整流部7は、吹き出し口34の張り出し端部37に空調空気を分配できる。   The upstream end portion 70 of the rectifying unit 7 is disposed inside the general unit 36 and extends straight. The downstream end portion 71 of the rectifying unit 7 is disposed in the vicinity of the outlet 34 in the thin portion 39 and is curved toward the overhanging end portion 37 (that is, in the left direction). A portion (referred to as a rectifying intermediate portion 72) between the upstream end portion 70 and the downstream end portion 71 in the rectifying portion 7 extends substantially along the axis L1 of the general portion. Further, a portion 73 continuing to the downstream end portion 71 in the rectifying intermediate portion 72 extends straight. The upstream end portion 70 of the rectifying unit 7 guides part of the conditioned air flowing through the driver's seat side duct 3 toward the overhanging end portion 37 before being deflected. The straight portion 73 rectifies the conditioned air guided by the upstream end portion 70. The downstream end portion 71 guides the conditioned air rectified by the straight portion 73 toward the projecting end portion 37 of the outlet 34. For this reason, the rectifying unit 7 can distribute the conditioned air to the overhanging end portion 37 of the outlet 34.

(実施例2)
実施例2の車両用補強構造体は、実施例1の車両用補強構造体の収容部12に助手席側エアバックのリッド(肉厚約2mm)を取り付け、かつ、収容部13に小物入れのリッド(肉厚約2mm)を取り付けたものである。
(Example 2)
In the vehicle reinforcing structure of the second embodiment, a passenger seat side airbag lid (thickness of about 2 mm) is attached to the housing portion 12 of the vehicle reinforcing structure of the first embodiment, and the housing portion 13 has a small container. A lid (with a thickness of about 2 mm) is attached.

(実施例3)
実施例3の車両用補強構造体は、複合ダクト部1の肉厚が約2.0mmであること以外は実施例1の車両用補強構造体と同じものである。
(Example 3)
The vehicle reinforcing structure of the third embodiment is the same as the vehicle reinforcing structure of the first embodiment, except that the thickness of the composite duct portion 1 is about 2.0 mm.

(比較例)
比較例の車両用補強構造体は、インパネリンホース、センターダクト、運転席側サイドダクト、助手席側サイドダクト、およびデフロスタノズルを持つ。インパネリンホースは鉄製であり内径60mm、外径64mmの円筒状をなす。センターダクト、運転席側サイドダクト、助手席側サイドダクト、およびデフロスタノズルは、実施例1の車両用補強構造体と同じFRP製であり、それぞれ別体で成形され、インパネリンホースに組み付けられている。比較例の車両用補強構造体におけるセンターダクト、運転席側サイドダクト、助手席側サイドダクト、およびデフロスタノズルは、実施例1の車両用補強構造体における各部分とほぼ同形状であるが、比較例の車両用補強構造体はリブ部6を持たない。
(Comparative example)
The vehicle reinforcing structure of the comparative example includes an instrument panel hose, a center duct, a driver seat side duct, a passenger seat side duct, and a defroster nozzle. The instrument panel hose is made of iron and has a cylindrical shape with an inner diameter of 60 mm and an outer diameter of 64 mm. The center duct, the driver's seat side duct, the passenger seat side duct, and the defroster nozzle are made of the same FRP as the vehicle reinforcing structure of the first embodiment, and are molded separately and assembled to the instrument panel hose. Yes. The center duct, the driver's seat side side duct, the passenger seat side duct, and the defroster nozzle in the vehicle reinforcing structure of the comparative example have substantially the same shape as each part in the vehicle reinforcing structure of the first embodiment. The example vehicle reinforcing structure does not have the rib portion 6.

(評価試験1)
実施例1〜3の車両用補強構造体および比較例の車両用補強構造体について、剛性および質量を測定した。剛性については、上下方向の剛性撓み、前後方向の剛性撓み、剛性ねじれの3項目を測定した。上下方向の剛性撓みは、車幅方向の両端部を固定した車両用補強構造体の上方から静荷重46kgfを加えて、車両用補強構造体の上下方向の変形量(mm)を測定した。前後方向の剛性撓みは、車幅方向の両端部を固定した車両用補強構造体の前方から静荷重46kgfを加えて、車両用補強構造体の前後方向の変形量(mm)を測定した。剛性ねじれは、車幅方向の一端部を固定した車両用補強構造体の他端部をトルク46kg・cmでねじり、車両用補強構造体の最大変形量(mm)を測定した。上下方向の剛性たわみ、前後方向の剛性撓み、および剛性ねじれについては、変形量が小さいほど剛性に優れる、と判断した。
(Evaluation Test 1)
The rigidity and mass of the vehicle reinforcing structures of Examples 1 to 3 and the vehicle reinforcing structure of the comparative example were measured. As for the rigidity, three items were measured: vertical bending, vertical bending, and twisting. With respect to the vertical flexure, the vertical deformation amount (mm) of the vehicle reinforcing structure was measured by applying a static load of 46 kgf from above the vehicle reinforcing structure with both ends in the vehicle width direction fixed. For the longitudinal flexure, the longitudinal deformation amount (mm) of the vehicle reinforcing structure was measured by applying a static load of 46 kgf from the front of the vehicle reinforcing structure with both ends in the vehicle width direction fixed. For the rigid torsion, the maximum deformation (mm) of the vehicle reinforcing structure was measured by twisting the other end of the vehicle reinforcing structure with one end fixed in the vehicle width direction with a torque of 46 kg · cm. Regarding the vertical deflection, the longitudinal deflection, and the rigid twist, it was determined that the smaller the amount of deformation, the better the stiffness.

その結果、比較例の車両用補強構造体の質量は6425g、上下方向の剛性撓みは1.15mm、前後方向の剛性撓みは1.23mm、剛性ねじれは0.101mmであった。これに対し、実施例1の車両用補強構造体の質量は3301g、上下方向の剛性撓みは0.735mm、前後方向の剛性撓みは0.866mm、剛性ねじれは0.929mmであった。実施例2の車両用補強構造体にエアバッグのリッドおよび小物入れのリッドを取り付けたものの質量は3395g、上下方向の剛性撓みは0.519mm、前後方向の剛性撓みは0.527mm、剛性ねじれは0.217mmであった。実施例3の車両用補強構造体の質量は3794g、上下方向の剛性撓みは0.49mm、前後方向の剛性撓みは0.202mm、剛性ねじれは0.586mmであった。   As a result, the mass of the vehicle reinforcing structure of the comparative example was 6425 g, the vertical rigid deflection was 1.15 mm, the longitudinal rigid deflection was 1.23 mm, and the rigid twist was 0.101 mm. On the other hand, the mass of the vehicle reinforcing structure of Example 1 was 3301 g, the vertical stiffness deflection was 0.735 mm, the longitudinal stiffness deflection was 0.866 mm, and the stiffness twist was 0.929 mm. The mass of the vehicle reinforcing structure of Example 2 with the airbag lid and the accessory case lid attached is 3395 g, the vertical stiffness is 0.519 mm, the longitudinal stiffness is 0.527 mm, and the stiffness is It was 0.217 mm. The mass of the vehicle reinforcing structure of Example 3 was 3794 g, the vertical rigid deflection was 0.49 mm, the longitudinal rigid deflection was 0.202 mm, and the rigid twist was 0.586 mm.

実施例1〜3の車両用補強構造体は、比較例の車両用補強構造体に比べて非常に軽量である。また、実施例1〜3の車両用補強構造体の剛性は、比較例の車両用補強構造体と同程度であった。特に、上下方向の剛性撓みおよび前後方向の剛性撓みについては、実施例1〜3の車両用補強構造体は比較例の車両用補強構造体よりも優れていた。これは、実施例1〜3の車両用補強構造体が長リブ62を含む格子状のリブ部6を持つためだと考えられる。また、剛性ねじれについても、実施例1〜3の車両用補強構造体は充分に剛性に優れていたが、収容部12、収容部13にエアバッグや小物入れ等を取り付けることでさらに剛性が向上する。   The vehicle reinforcement structures of Examples 1 to 3 are very light compared to the vehicle reinforcement structure of the comparative example. Further, the rigidity of the vehicle reinforcing structures of Examples 1 to 3 was comparable to that of the vehicle reinforcing structure of the comparative example. In particular, with respect to the rigid deflection in the up-down direction and the rigid deflection in the front-rear direction, the vehicle reinforcing structures of Examples 1 to 3 were superior to the vehicle reinforcing structure of the comparative example. This is presumably because the vehicle reinforcing structures of Examples 1 to 3 have the grid-like rib portions 6 including the long ribs 62. In addition, regarding the torsional rigidity, the vehicle reinforcing structures of Examples 1 to 3 were sufficiently excellent in rigidity, but the rigidity was further improved by attaching an airbag, a small case, or the like to the accommodating portion 12 and the accommodating portion 13. To do.

(評価試験2)
実施例1の車両用補強構造体を送風装置(図略)に取り付け、センターダクト2、運転席側サイドダクト3および助手席側サイドダクト4の圧損を測定した。実施例1の車両用補強構造体は、直管状の整流用助走ダクト(図略)を介して、送風装置に取り付けた。送風装置から空気流量120m/時間で車両用補強構造体に送風した。送風装置で送風した風量と、各吹き出し口24、34、44における風量(実測値)との差を基に、各ダクトの圧力損失を算出した。その結果、センターダクト2の圧力損失は27.4Pa、運転席側サイドダクト3の圧力損失は77.4Pa、助手席側サイドダクト4の圧力損失は80.4Paであり、厚型ダクトであるセンターダクト2についても、薄型部を持ちかつ薄型ダクトである運転席側サイドダクト3および助手席側サイドダクト4についても、圧力損失は充分に小さかった。
(Evaluation test 2)
The vehicle reinforcing structure of Example 1 was attached to a blower (not shown), and the pressure loss of the center duct 2, the driver's seat side duct 3, and the passenger seat's side duct 4 was measured. The vehicle reinforcing structure of Example 1 was attached to the blower through a straight-tube straightening run-up duct (not shown). The air was blown from the blower to the vehicle reinforcing structure at an air flow rate of 120 m 3 / hour. The pressure loss of each duct was calculated based on the difference between the air volume blown by the blower and the air volume (actually measured values) at each outlet 24, 34, 44. As a result, the pressure loss of the center duct 2 is 27.4 Pa, the pressure loss of the driver side side duct 3 is 77.4 Pa, and the pressure loss of the passenger side side duct 4 is 80.4 Pa. Regarding the duct 2 as well, the pressure loss was sufficiently small for the driver side side duct 3 and the passenger side side duct 4 which have a thin part and are thin ducts.

(評価試験3)
評価試験2と同様に、実施例1の車両用補強構造体を送風装置(図略)に取り付け、センターダクト2、運転席側サイドダクト3および助手席側サイドダクト4の騒音を測定した。送風装置から空気流量120m/時間で車両用補強構造体に送風した。吹き出し口24、34、44の近傍に騒音測定用のマイクを取り付け、各吹き出し口24、34、44における騒音を測定した。その結果、センターダクト2の騒音は32.8dB、運転席側サイドダクト3の騒音は47.6dB、助手席側サイドダクト4の騒音は48dBであり、厚型ダクトであるセンターダクト2についても、薄型部を持ちかつ薄型ダクトである運転席側サイドダクト3および助手席側サイドダクト4についても、騒音は充分に小さかった。
(Evaluation Test 3)
Similarly to the evaluation test 2, the vehicle reinforcing structure of Example 1 was attached to a blower (not shown), and the noises of the center duct 2, the driver's seat side duct 3, and the passenger seat's side duct 4 were measured. The air was blown from the blower to the vehicle reinforcing structure at an air flow rate of 120 m 3 / hour. A microphone for noise measurement was attached in the vicinity of the outlets 24, 34, and 44, and the noise at each outlet 24, 34, and 44 was measured. As a result, the noise of the center duct 2 is 32.8 dB, the noise of the driver side side duct 3 is 47.6 dB, the noise of the passenger side side duct 4 is 48 dB, and the center duct 2 that is a thick duct is also The driver side side duct 3 and the passenger side side duct 4 which have a thin part and are thin ducts were also sufficiently low in noise.

(評価試験4)
実施例1の車両用補強構造体を評価試験3と同様に送風装置に取り付け、運転席側サイドダクト3および助手席側サイドダクト4から流出する空気の風速を測定した。送風装置から空気流量120m/時間で車両用補強構造体に送風した。運転席側サイドダクト3および助手席側サイドダクト4の各吹き出し口34、44に各々風速計を取り付け、吹き出し口34、44における風速を測定した。詳しくは、運転席側サイドダクト3の吹き出し口34については、車幅方向の18箇所(20mm間隔)に風速計を配置した。助手席側サイドダクト4の吹き出し口44には、車幅方向の14箇所(20mm間隔)に風速計を配置した。その結果、何れの測定値も風速5〜10m/時間の範囲内であり、実施例1の車両用補強構造体における運転席側サイドダクト3および助手席側サイドダクト4は、吹き出し口34、44の全体から略均一に空気を流出させ得ることがわかった。
(Evaluation Test 4)
The vehicle reinforcing structure of Example 1 was attached to the air blower in the same manner as in the evaluation test 3, and the wind speed of the air flowing out from the driver seat side duct 3 and the passenger seat side duct 4 was measured. The air was blown from the blower to the vehicle reinforcing structure at an air flow rate of 120 m 3 / hour. An anemometer was attached to each of the air outlets 34 and 44 of the driver seat side duct 3 and the passenger seat side duct 4, and the wind speed at the air outlets 34 and 44 was measured. Specifically, the anemometers are arranged at 18 locations (20 mm intervals) in the vehicle width direction with respect to the air outlet 34 of the driver seat side duct 3. Anemometers were arranged at 14 outlets (20 mm intervals) in the vehicle width direction at the outlet 44 of the passenger side side duct 4. As a result, all the measured values are within the range of the wind speed of 5 to 10 m / hour, and the driver side side duct 3 and the passenger side side duct 4 in the vehicle reinforcing structure according to the first embodiment have the outlets 34 and 44. It was found that air can flow out substantially uniformly from the whole.

1:複合ダクト部 2:センターダクト
3:運転席側サイドダクト 4:助手席側サイドダクト
6:リブ部 24:センターダクトの吹き出し口
34:運転席側サイドダクトの吹き出し口 39:運転席側サイドダクトの薄型部
44:助手席側サイドダクトの吹き出し口 49:助手席側サイドダクトの薄型部
61:リブ
1: Composite duct part 2: Center duct
3: Driver seat side duct 4: Passenger seat side duct 6: Rib 24: Center duct outlet 34: Driver seat side duct outlet 39: Driver seat side duct thin section 44: Passenger seat side Side duct outlet 49: Thin section 61 of the passenger side side duct: Rib

Claims (3)

樹脂材料製でありインストルメントパネルの裏側に配置される車両用補強構造体であって、
筒状をなす二つのサイドダクトと、筒状をなし二つの該サイドダクトの間に配置されているセンターダクトと、が一体化されてなり、空調装置に接続される複合ダクト部と、
該複合ダクト部の上面および/または下面に突設されている複数のリブが格子状に一体化されてなるリブ部と、を持ち、
二つの該サイドダクトは、流路断面の車幅方向の長さを上下方向の長さで除した値が4以上となる薄型部を持ち、
該リブ部は少なくとも該薄型部の上面および/または下面に配置されていることを特徴とする車両用補強構造体。
A vehicle reinforcing structure that is made of a resin material and disposed on the back side of the instrument panel,
Two side ducts that form a cylindrical shape, and a center duct that is cylindrical and disposed between the two side ducts are integrated, and a composite duct portion that is connected to an air conditioner,
A plurality of ribs projecting from the upper surface and / or the lower surface of the composite duct portion, and a rib portion integrated in a lattice shape,
The two side ducts have a thin portion where the value obtained by dividing the length in the vehicle width direction of the flow path cross section by the length in the vertical direction is 4 or more,
The reinforcing structure for a vehicle, wherein the rib portion is disposed at least on an upper surface and / or a lower surface of the thin portion.
前記薄型部の上下方向の長さは20mm以下である請求項1に記載の車両用補強構造体。   The vehicle reinforcing structure according to claim 1, wherein the thin portion has a vertical length of 20 mm or less. 前記センターダクトおよび前記サイドダクトの少なくとも一部は一体成形されている請求項1または請求項2に記載の車両用補強構造体。   The vehicle reinforcing structure according to claim 1, wherein at least a part of the center duct and the side duct is integrally formed.
JP2010077028A 2010-03-30 2010-03-30 Reinforcement structure for vehicle Withdrawn JP2011207342A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2535764A (en) * 2015-02-26 2016-08-31 Aston Martin Lagonda Ltd Structural cross-member
CN106080199A (en) * 2016-07-29 2016-11-09 芜湖新泉汽车饰件***有限公司 Strengthen instrument panel structure

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003237632A (en) * 2001-12-27 2003-08-27 Faurecia Interieur Industrie Structural assembly for dashboard

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003237632A (en) * 2001-12-27 2003-08-27 Faurecia Interieur Industrie Structural assembly for dashboard

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2535764A (en) * 2015-02-26 2016-08-31 Aston Martin Lagonda Ltd Structural cross-member
CN106080199A (en) * 2016-07-29 2016-11-09 芜湖新泉汽车饰件***有限公司 Strengthen instrument panel structure

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