JP2022067383A - Undercover for vehicle - Google Patents

Undercover for vehicle Download PDF

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JP2022067383A
JP2022067383A JP2020176067A JP2020176067A JP2022067383A JP 2022067383 A JP2022067383 A JP 2022067383A JP 2020176067 A JP2020176067 A JP 2020176067A JP 2020176067 A JP2020176067 A JP 2020176067A JP 2022067383 A JP2022067383 A JP 2022067383A
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sound absorbing
undercover
resin
absorbing portion
vehicle
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JP7398356B2 (en
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光児 中村
Koji Nakamura
貴史 山口
Takashi Yamaguchi
拓哉 鷲見
Takuya Washimi
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Inoac Corp
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Inoue MTP KK
Inoac Corp
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
    • Y02T10/88—Optimized components or subsystems, e.g. lighting, actively controlled glasses

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Abstract

To smoothly discharge water.SOLUTION: An undercover for vehicle 10 includes a resin part 12 and a sound absorption part 16 which is provided to cover an open part 14 partitioned by the resin part 12 and has a number of air gaps. The resin part 12 includes a drain hole part 18 to penetrate in the vertical direction. The sound absorption part 16 has a drainage guide part 20 inclined such that the drain hole part 18 side is positioned at an inclined lower end on a top face thereof. The undercover for vehicle 10 is configured such that water W gathered at the top of the sound absorption part 16 is guided by the drainage guide part 20 to discharge the water from the drain hole part 18.SELECTED DRAWING: Figure 1

Description

この発明は、エンジンアンダーカバーなどの車両用アンダーカバーに関するものである。 The present invention relates to a vehicle undercover such as an engine undercover.

車両におけるエンジンの下側には、エンジン音を低減するために、エンジンアンダーカバーが設置されている（例えば、特許文献１参照）。特許文献１のエンジンアンダーカバーは、繊維層と発泡体層とが積層する吸音構造部分によって、エンジン音の吸音を図っている。 An engine undercover is installed under the engine in a vehicle in order to reduce engine noise (see, for example, Patent Document 1). The engine undercover of Patent Document 1 is designed to absorb engine sound by a sound absorbing structure portion in which a fiber layer and a foam layer are laminated.

特開２０１４－１５９２１９号公報Japanese Unexamined Patent Publication No. 2014-159219

車両が冠水路を走行した場合、エンジンアンダーカバーにおける吸音構造部分の上に水が溜まることがある。吸音構造部分に水が溜まっていると、吸音性が悪化してしまう。また、吸音構造部分を貫通した排水孔を設けると、その排水孔からエンジン音が漏れて、吸音構造部分の吸音性が悪化するおそれがある。 When the vehicle travels on a submerged road, water may collect on the sound absorbing structure portion of the engine undercover. If water collects in the sound-absorbing structure portion, the sound-absorbing property deteriorates. Further, if a drain hole penetrating the sound absorbing structure portion is provided, engine sound may leak from the drain hole, and the sound absorbing property of the sound absorbing structure portion may deteriorate.

本発明は、従来の技術に係る前記問題に鑑み、これらを好適に解決するべく提案されたものであって、吸音性を保ちつつ円滑に排水できる車両用アンダーカバーを提供することを目的とする。 The present invention has been proposed in view of the above-mentioned problems related to the prior art, and an object thereof is to provide an undercover for a vehicle capable of smoothly draining water while maintaining sound absorption. ..

前記課題を克服し、所期の目的を達成するため、本発明に係る車両用アンダーカバーは、
樹脂部と、
前記樹脂部で区画される開口部分を塞ぐように設けられ、多数の空隙を有する吸音部と、
前記樹脂部を上下方向に貫通するように設けられた排水孔部と、を備え、
前記吸音部は、その上面に、前記排水孔部側が傾斜下端になるように傾く排水案内部を有していることを要旨とする。 In order to overcome the above-mentioned problems and achieve the desired object, the vehicle undercover according to the present invention is used.
Resin part and
A sound absorbing portion provided so as to close the opening portion partitioned by the resin portion and having a large number of voids, and a sound absorbing portion.
A drainage hole portion provided so as to penetrate the resin portion in the vertical direction is provided.
The gist is that the sound absorbing portion has a drainage guide portion tilted so that the drainage hole portion side is tilted at the lower end thereof on the upper surface thereof.

本発明に係る車両用アンダーカバーによれば、吸音性を保ちつつ円滑に排水できる。 According to the vehicle undercover according to the present invention, drainage can be smoothly performed while maintaining sound absorption.

本発明の実施例に係る車両用アンダーカバーを示す概略斜視図である。It is a schematic perspective view which shows the undercover for a vehicle which concerns on embodiment of this invention. 実施例に係る車両用アンダーカバーを示す平面図である。It is a top view which shows the undercover for a vehicle which concerns on Example. 図２のＡ－Ａ線断面図である。FIG. 2 is a cross-sectional view taken along the line AA of FIG. 図３のＢ部拡大図である。FIG. 3 is an enlarged view of part B in FIG.

次に、本発明に係る車両用アンダーカバーにつき、好適な実施例を挙げて、添付図面を参照して以下に説明する。なお、本発明の車両用アンダーカバーは、エンジンアンダーカバー、フロアアンダーカバー、フェンダーライナーなどの車両外装部材に適用可能である。 Next, the vehicle undercover according to the present invention will be described below with reference to the accompanying drawings with reference to suitable examples. The vehicle undercover of the present invention can be applied to vehicle exterior members such as engine undercovers, floor undercovers, and fender liners.

図１に示すように、車両用アンダーカバー１０(以下、単にアンダーカバーという。)は、樹脂部１２と、樹脂部１２で区画される開口部分１４を塞ぐように設けられた吸音部１６と、アンダーカバー１０の上側にのった水を排出するための排水構造１８,２０とを備えている。アンダーカバー１０は、樹脂部１２と吸音部１６とが、樹脂部１２の成形時に一体化したり、接着剤で接着したり、熱等により溶着したりするなどによって互いに接続されている。アンダーカバー１０では、吸音部１６よりも硬質な樹脂部１２によって、剛性が主に担保されている。アンダーカバー１０は、樹脂部１２に設けられた取付部分を用いて、自動車等の車両の車体に取り付けられる。 As shown in FIG. 1, the vehicle undercover 10 (hereinafter, simply referred to as an undercover) includes a resin portion 12, a sound absorbing portion 16 provided so as to close an opening portion 14 partitioned by the resin portion 12, and a sound absorbing portion 16. It is provided with drainage structures 18 and 20 for draining water on the upper side of the undercover 10. In the undercover 10, the resin portion 12 and the sound absorbing portion 16 are connected to each other by being integrated at the time of molding the resin portion 12, being adhered with an adhesive, being welded by heat or the like, and the like. In the undercover 10, the rigidity is mainly ensured by the resin portion 12 which is harder than the sound absorbing portion 16. The undercover 10 is attached to the vehicle body of a vehicle such as an automobile by using the attachment portion provided on the resin portion 12.

樹脂部１２は、合成樹脂の射出成形等による成形品である。合成樹脂としては、ポリプロピレン(ＰＰ)、ポリエチレン(ＰＥ)、アクリロニトリル・ブタジエン・スチレン (ＡＢＳ)、ポリ塩化ビニル(ＰＶＣ)、ポリエチレンテレフタレート(ＰＥＴ)、ポリアミド(ＰＡ)などを用いることができる。 The resin portion 12 is a molded product obtained by injection molding or the like of synthetic resin. As the synthetic resin, polypropylene (PP), polyethylene (PE), acrylonitrile, butadiene, styrene (ABS), polyvinyl chloride (PVC), polyethylene terephthalate (PET), polyamide (PA) and the like can be used.

図１および図２に示すように、実施例の樹脂部１２は、車体への取付部分が形成された外周部１２ａと、外周部１２ａの内側において前後左右方向へ延びる格子状に形成された枠部１２ｂとを備えている。樹脂部１２には、開口部分１４が、４本の枠部１２ｂ、あるいは外周部１２ａおよび枠部１２ｂに囲まれて形成されている。実施例では、複数の開口部分１４が、樹脂部１２において前後左右に並ぶように配置されている。 As shown in FIGS. 1 and 2, the resin portion 12 of the embodiment has an outer peripheral portion 12a on which a mounting portion to the vehicle body is formed and a frame formed in a grid pattern extending in the front-rear and left-right directions inside the outer peripheral portion 12a. It is provided with a portion 12b. The resin portion 12 is formed with an opening portion 14 surrounded by four frame portions 12b, or an outer peripheral portion 12a and a frame portion 12b. In the embodiment, the plurality of opening portions 14 are arranged so as to be arranged in front, back, left and right in the resin portion 12.

吸音部１６は、多数の空隙を有する不織布や発泡体などで構成することができる。アンダーカバー１０は、多数の空隙を有する吸音部１６によって、エンジン音や走行音などの車外騒音を抑えている。吸音部１６を構成する不織布としては、ポリエステル繊維、ポリオレフィン繊維、アラミド繊維、ガラス繊維、セルロース繊維、ナイロン繊維、ビニロン繊維、レーヨン繊維などからなるものを用いることができる。また、吸音部１６を構成する発泡体としては、ポリウレタン系、ポリオレフィン系、ポリスチレン系などの発泡体を用いることができる。 The sound absorbing portion 16 can be made of a non-woven fabric, a foam, or the like having a large number of voids. The undercover 10 suppresses external noise such as engine noise and running noise by means of a sound absorbing portion 16 having a large number of voids. As the non-woven fabric constituting the sound absorbing portion 16, one made of polyester fiber, polyolefin fiber, aramid fiber, glass fiber, cellulose fiber, nylon fiber, vinylon fiber, rayon fiber and the like can be used. Further, as the foam constituting the sound absorbing portion 16, a polyurethane-based, polyolefin-based, polystyrene-based or the like foam can be used.

実施例のアンダーカバー１０は、吸音部１６の上面に撥水加工が施されている。撥水加工としては、例えばシリコーン樹脂やフッ素樹脂などの撥水材料を吸音部１６の上面（車体側）または上面を含めた全体に付与したり、撥水性を有する繊維等の素材で吸音部１６を構成したりすることなどが挙げられる。なお、吸音部１６において後述する排水案内部２０となる部分だけに撥水加工を施してもよい。 In the undercover 10 of the embodiment, the upper surface of the sound absorbing portion 16 is water-repellent. As the water-repellent treatment, for example, a water-repellent material such as silicone resin or fluororesin is applied to the entire upper surface (vehicle body side) or the upper surface of the sound absorbing portion 16, or the sound absorbing portion 16 is made of a material such as a water-repellent fiber. And so on. It should be noted that the water repellent treatment may be applied only to the portion of the sound absorbing portion 16 that becomes the drainage guide portion 20 described later.

吸音部１６は、１層で構成してもよいが、２層以上で構成してもよい。例えば、吸音部１６を２層とする場合、上側（車体側）の第１層を吸音部１６に求められる主機能(吸音)を担保するための層とし、下側（地面側）の第２層を吸音部１６に付加する補助機能(実施例では耐水)を担保するための層とすることができる。この場合、第２層を第１層よりも密度が高く設定するとよく、例えば、第１層の密度を１６５ｋｇ／ｍ３程度とし、第２層の密度を４００ｋｇ／ｍ３程度に設定することができる。第２層に撥水加工を施してもよく、第２層の撥水加工としては、例えばシリコーン樹脂やフッ素樹脂などの撥水材料を不織布に付与することが挙げられる。アンダーカバー１０は、吸音部１６の下面に撥水性が付与されていることで、吸音部１６に水が浸入したり、吸音部１６に雪が付いたり、吸音部１６に着氷したりすることを防止できる。 The sound absorbing portion 16 may be composed of one layer, or may be composed of two or more layers. For example, when the sound absorbing portion 16 has two layers, the first layer on the upper side (vehicle body side) is used as a layer for ensuring the main function (sound absorbing) required for the sound absorbing portion 16, and the second layer on the lower side (ground side). The layer can be used as a layer for ensuring an auxiliary function (water resistance in the embodiment) of adding the layer to the sound absorbing portion 16. In this case, the density of the second layer may be set higher than that of the first layer. For example, the density of the first layer may be set to about 165 kg / m 3 and the density of the second layer may be set to about 400 kg / m 3 . can. A water-repellent treatment may be applied to the second layer, and examples of the water-repellent treatment of the second layer include applying a water-repellent material such as a silicone resin or a fluororesin to the nonwoven fabric. Since the undercover 10 is provided with water repellency on the lower surface of the sound absorbing portion 16, water may enter the sound absorbing portion 16, snow may adhere to the sound absorbing portion 16, or icing may occur on the sound absorbing portion 16. Can be prevented.

アンダーカバー１０の排水構造について説明する。アンダーカバー１０は、排水構造として、樹脂部１２を上下方向に貫通するように設けられた排水孔部１８と、吸音部１６の上面に形成されて、排水孔部１８側が傾斜下端になるように傾く排水案内部２０とを有している。排水孔部１８は、外周部１２ａおよび枠部１２ｂに、複数形成されている。排水孔部１８は、開口部分１４(吸音部１６)に対応して、１箇所以上設けるとよい。排水孔部１８は、外周部１２ａおよび枠部１２ｂにおける開口部分１４(吸音部１６)に近接する位置に配置されている。 The drainage structure of the undercover 10 will be described. The undercover 10 is formed on the upper surface of the sound absorbing portion 16 and the drain hole portion 18 provided so as to penetrate the resin portion 12 in the vertical direction as a drainage structure so that the drainage hole portion 18 side becomes the inclined lower end. It has an inclined drainage guide unit 20. A plurality of drainage holes 18 are formed in the outer peripheral portion 12a and the frame portion 12b. The drainage hole portion 18 may be provided at one or more locations corresponding to the opening portion 14 (sound absorbing portion 16). The drainage hole portion 18 is arranged at a position close to the opening portion 14 (sound absorbing portion 16) in the outer peripheral portion 12a and the frame portion 12b.

図３および図４に示すように、排水案内部２０は、排水孔部１８に向けて水を導くことができる程度に傾いた傾斜面である。排水案内部２０は、例えば、１°～３°の傾きとすることができる。ここで、排水案内部２０は、車両の左右方向へ傾けることが好ましい。実施例では、排水案内部２０の形態として、吸音部１６の左右方向中央部から右側に向かうにつれて下方傾斜する傾斜面と、吸音部１６の左右方向中央部から左側に向かうにつれて下方傾斜する傾斜面とで山形に形成されたものを備えている。また、実施例では、排水案内部２０の別の形態として、吸音部１６の左右方向の一方から他方へ向かうにつれて下方傾斜する傾斜面で形成されたものを備えている。吸音部１６は、板状の吸音部１６自体を山形に成形することで排水案内部２０を設けても(図３(ａ)参照)、吸音部１６の上面だけを山形に成形することで排水案内部２０を設けても(図３(ｂ)参照)、何れであってもよい。 As shown in FIGS. 3 and 4, the drainage guide portion 20 is an inclined surface inclined to the extent that water can be guided toward the drainage hole portion 18. The drainage guide portion 20 can be tilted by, for example, 1 ° to 3 °. Here, it is preferable that the drainage guide portion 20 is tilted in the left-right direction of the vehicle. In the embodiment, as the form of the drainage guide portion 20, an inclined surface that inclines downward from the central portion in the left-right direction of the sound absorbing portion 16 toward the right side and an inclined surface that inclines downward from the central portion in the left-right direction of the sound absorbing portion 16 toward the left side. It is equipped with a mountain-shaped one. Further, in the embodiment, as another embodiment of the drainage guide portion 20, a sound absorbing portion 16 formed of an inclined surface that inclines downward from one side in the left-right direction toward the other is provided. Even if the sound absorbing portion 16 is provided with the drainage guide portion 20 by forming the plate-shaped sound absorbing portion 16 itself into a chevron shape (see FIG. 3A), the sound absorbing portion 16 is drained by forming only the upper surface of the sound absorbing portion 16 into a chevron shape. The guide portion 20 may be provided (see FIG. 3 (b)) or may be provided.

実施例のアンダーカバー１０は、吸音部１６となるシート材をセットした成形型において樹脂部１２を成形するインサート成形によって得ることができる。インサート成形では、シート材の端部を、樹脂部１２をなすキャビティに臨ませた状態で、樹脂部１２を射出成形する。これにより、吸音部１６の端部(一部)が、樹脂部１２の内側に入り込んだ状態で溶着し、吸音部１６の端部と樹脂部１２とが一体化される。インサート成形に際して、成形型で挟んで吸音部１６を成形することで排水案内部２０を形成してもよい。また、アンダーカバー１０は、樹脂部１２を成形した後、吸音部１６を樹脂部１２に接着剤で接着したり、吸音部１６を樹脂部１２に超音波等により溶着したりすることなどによっても得ることができる。 The undercover 10 of the embodiment can be obtained by insert molding in which the resin portion 12 is molded in a molding mold in which a sheet material to be the sound absorbing portion 16 is set. In insert molding, the resin portion 12 is injection-molded with the end portion of the sheet material facing the cavity forming the resin portion 12. As a result, the end portion (part) of the sound absorbing portion 16 is welded in a state of being inserted inside the resin portion 12, and the end portion of the sound absorbing portion 16 and the resin portion 12 are integrated. At the time of insert molding, the drainage guide portion 20 may be formed by sandwiching the sound absorbing portion 16 with a molding die. Further, the undercover 10 may be formed by molding the resin portion 12 and then adhering the sound absorbing portion 16 to the resin portion 12 with an adhesive, or welding the sound absorbing portion 16 to the resin portion 12 by ultrasonic waves or the like. Obtainable.

例えば、車両が冠水路等を通過してアンダーカバー１０の上側に水Ｗが入った場合、吸音部１６の上面に形成された排水案内部２０の傾斜で水Ｗを導き、水Ｗを排水孔部１８に案内することができる(図４参照)。そして、水Ｗを排水孔部１８からアンダーカバー１０の外部へ排出することができる。このように、排水案内部２０を設けることで、水Ｗを吸音部１６の上側から円滑に排除することができ、吸音部１６に水Ｗが浸入することを防止して、吸音性が低下することを回避できる。また、吸音部１６に侵入した水Ｗが凍ること等による吸音部１６の破損を防止することができる。しかも、アンダーカバー１０は、樹脂部１２に排水孔部１８を形成し、吸音部１６に排水のための孔をあけないので、吸音部１６にあけた孔に起因して吸音部１６の吸音性を損なうことを回避できる。 For example, when a vehicle passes through a submerged channel or the like and water W enters the upper side of the undercover 10, the water W is guided by the inclination of the drainage guide portion 20 formed on the upper surface of the sound absorbing portion 16, and the water W is drained. It can be guided to the unit 18 (see FIG. 4). Then, the water W can be discharged from the drain hole portion 18 to the outside of the undercover 10. By providing the drainage guide portion 20 in this way, the water W can be smoothly removed from the upper side of the sound absorbing portion 16, the water W is prevented from entering the sound absorbing portion 16, and the sound absorbing property is lowered. You can avoid that. Further, it is possible to prevent the sound absorbing portion 16 from being damaged due to freezing of the water W that has entered the sound absorbing portion 16. Moreover, since the undercover 10 has a drainage hole 18 formed in the resin portion 12 and does not have a hole for drainage in the sound absorbing portion 16, the sound absorbing property of the sound absorbing portion 16 is caused by the hole formed in the sound absorbing portion 16. Can be avoided.

アンダーカバー１０は、排水案内部２０を、車両の左右方向へ傾けて形成することで、アンダーカバー１０の上側を前後方向に通る風に対して、排水案内部２０が邪魔にならないようにすることができる。 The undercover 10 is formed by inclining the drainage guide portion 20 in the left-right direction of the vehicle so that the drainage guide portion 20 does not interfere with the wind passing in the front-rear direction on the upper side of the undercover 10. Can be done.

吸音部１６を不織布で構成することで、軽量で、かつ耐久性に優れたアンダーカバー１０とすることができる。 By forming the sound absorbing portion 16 with a non-woven fabric, it is possible to obtain an undercover 10 that is lightweight and has excellent durability.

吸音部１６の端部を、樹脂部１２の内側に入り込んだ状態で溶着すると、樹脂部１２と吸音部１６との接合強度を向上することができる。このように樹脂部１２の内側に吸音部１６の端部を入り込ませるためには、前述したインサート成形になるので、アンダーカバー１０をより簡単に得ることができる。 If the end portion of the sound absorbing portion 16 is welded while being inside the resin portion 12, the bonding strength between the resin portion 12 and the sound absorbing portion 16 can be improved. In order to insert the end portion of the sound absorbing portion 16 into the inside of the resin portion 12 in this way, the insert molding described above is performed, so that the undercover 10 can be obtained more easily.

吸音部１６の上面に撥水加工が施してあることで、排水案内部２０によって水Ｗを吸音部１６の上側から円滑に排除することができると共に、吸音部１６に水Ｗが浸入することを防止することができる。 Since the upper surface of the sound absorbing portion 16 is water-repellent, the drainage guide portion 20 can smoothly remove the water W from the upper side of the sound absorbing portion 16 and prevent the water W from entering the sound absorbing portion 16. Can be prevented.

（変更例）
前述した事項に限らず、例えば以下のように変更してもよい。なお、本発明は、実施例および以下の変更例の具体的な記載のみに限定されるものではない。
(１)吸音部の上面全体を排水案内部としても、吸音部の上面の一部を排水案内部としてもよい。
(２)排水案内部は、直線的な傾斜面に限らず、例えば弧を描くように曲がった傾斜面であってもよい。
(３)排水案内部は、１つの傾斜面で構成することに限らず、複数の傾斜面で構成してもよい。例えば、１の傾斜面の傾斜下端に別の傾斜面の傾斜上端が連なって、樹脂部の排水孔部に最終的に案内される構成などが挙げられる。 (Change example)
Not limited to the above-mentioned matters, for example, the following may be changed. The present invention is not limited to the specific description of Examples and the following modifications.
(1) The entire upper surface of the sound absorbing portion may be used as the drainage guide portion, or a part of the upper surface of the sound absorbing portion may be used as the drainage guide portion.
(2) The drainage guide portion is not limited to a straight inclined surface, but may be an inclined surface bent so as to draw an arc, for example.
(3) The drainage guide portion is not limited to being composed of one inclined surface, but may be composed of a plurality of inclined surfaces. For example, there is a configuration in which the inclined upper end of another inclined surface is connected to the inclined lower end of one inclined surface and is finally guided to the drain hole portion of the resin portion.

１２ 樹脂部，１４ 開口部分，１６ 吸音部，１８ 排水孔部，２０ 排水案内部
12 Resin part, 14 Open part, 16 Sound absorbing part, 18 Drainage hole part, 20 Drainage guide part

Claims (5)

樹脂部と、
前記樹脂部で区画される開口部分を塞ぐように設けられ、多数の空隙を有する吸音部と、
前記樹脂部を上下方向に貫通するように設けられた排水孔部と、を備え、
前記吸音部は、その上面に、前記排水孔部側が傾斜下端になるように傾く排水案内部を有している
ことを特徴とする車両用アンダーカバー。 Resin part and
A sound absorbing portion provided so as to close the opening portion partitioned by the resin portion and having a large number of voids, and a sound absorbing portion.
A drainage hole portion provided so as to penetrate the resin portion in the vertical direction is provided.
The sound absorbing portion is a vehicle undercover having a drainage guide portion tilted so that the drainage hole portion side is tilted at the lower end thereof on the upper surface thereof. 前記排水案内部は、車両の左右方向へ傾いている請求項１記載の車両用アンダーカバー。 The vehicle undercover according to claim 1, wherein the drainage guide unit is tilted in the left-right direction of the vehicle. 前記吸音部は、不織布で構成されている請求項１または２記載の車両用アンダーカバー。 The vehicle undercover according to claim 1 or 2, wherein the sound absorbing portion is made of a non-woven fabric. 前記吸音部の一部が、前記樹脂部の内側に入り込んで溶着している請求項１～３の何れか一項に記載の車両用アンダーカバー。 The vehicle undercover according to any one of claims 1 to 3, wherein a part of the sound absorbing portion enters the inside of the resin portion and is welded. 前記吸音部の上面に撥水加工が施されている請求項１～４の何れか一項に記載の車両用アンダーカバー。 The vehicle undercover according to any one of claims 1 to 4, wherein the upper surface of the sound absorbing portion is water repellent.
JP2020176067A 2020-10-20 2020-10-20 Vehicle undercover Active JP7398356B2 (en)

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JP2007262904A (en) 2006-03-27 2007-10-11 Sekiso:Kk Engine cover
US20130309442A1 (en) 2012-05-17 2013-11-21 Ticona Llc Structural Member with Locally Reinforced Portion and Method for Forming Structural Member
US11104098B2 (en) 2016-05-31 2021-08-31 Cadillac Products Automotive Company Fibrous vehicle underbody shield
KR101870732B1 (en) 2017-03-21 2018-06-27 (주)대한솔루션 Under cover for vehicle to improve water repellent and anti-noise
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