JP2010121527A - Exhaust component cover - Google Patents

Exhaust component cover Download PDF

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Publication number
JP2010121527A
JP2010121527A JP2008295892A JP2008295892A JP2010121527A JP 2010121527 A JP2010121527 A JP 2010121527A JP 2008295892 A JP2008295892 A JP 2008295892A JP 2008295892 A JP2008295892 A JP 2008295892A JP 2010121527 A JP2010121527 A JP 2010121527A
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plate
outer plate
inner plate
exhaust
exhaust part
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JP5086976B2 (en
Inventor
Toru Hisanaga
徹 久永
Akihiro Kawamata
章弘 川又
Tomoyuki Uchida
智幸 内田
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Yutaka Giken Co Ltd
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Yutaka Giken Co Ltd
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Priority to JP2008295892A priority Critical patent/JP5086976B2/en
Priority to MYPI20094807A priority patent/MY147917A/en
Priority to US12/616,963 priority patent/US8028795B2/en
Priority to EP09252640.9A priority patent/EP2199561B1/en
Priority to CN2009102245958A priority patent/CN101737138B/en
Publication of JP2010121527A publication Critical patent/JP2010121527A/en
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Abstract

<P>PROBLEM TO BE SOLVED: To provide an exhaust component cover made with a small number of components. <P>SOLUTION: An exhaust component cover 10 covering an exhaust component 11 is constituted of an external plate 12 covering the exhaust component 11 and an internal plate 13 which is arranged so as to be attached to an inner surface of the external plate 12 and is formed with a part of the external plate 12 being bent, and a plurality of punch holes 20 are created on the internal plate 13. Thus, the internal plate 13 is formed with a part of the external plate 12 being bent, so that the exhaust component cover 10 is made by using one plate. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、排気部品を覆う排気部品カバーに関する。   The present invention relates to an exhaust part cover that covers an exhaust part.

エンジンから延びる排気部品において、特に音や熱の発生部位に遮音遮熱カバーと呼ばれる排気部品カバーを付設することがある。このようにして用いられる排気部品カバーが、種々提案されている（例えば、特許文献１参照。）。
特開２００２−８７０７８公報（図２） In exhaust parts extending from an engine, an exhaust part cover called a sound insulation / heat insulation cover may be provided particularly at a site where sound or heat is generated. Various exhaust parts covers used in this manner have been proposed (see, for example, Patent Document 1).
Japanese Patent Laid-Open No. 2002-87078 (FIG. 2)

特許文献１を次図に基づいて説明する。
図７は従来の技術の基本構成を説明する図であり、排気部品カバー１００は、外板１０１にアルミ箔１０２を介して内板１０３を貼合わせ、外板１０１の一端（図面下側）を内板１０３側に折曲げた上でこれらの外板１０１、アルミ箔１０２及び内板１０３を一体的にプレス成形することにより製造される。 Patent document 1 is demonstrated based on the following figure.
FIG. 7 is a diagram for explaining the basic configuration of the conventional technique. In the exhaust part cover 100, an inner plate 103 is bonded to an outer plate 101 via an aluminum foil 102, and one end (lower side of the drawing) of the outer plate 101 is attached. The outer plate 101, the aluminum foil 102, and the inner plate 103 are integrally formed by press molding after being bent toward the inner plate 103 side.

このように製造された排気部品カバー１００で、排気部品の音の発生部位を覆い、排気部品から生ずる騒音を遮音する。
ところで、エンジンの作動中は、エンジンの振動が排気部品に伝わり、この振動が更に排気部品カバーに伝わることがある。この振動により、排気部品カバーの自励振動が発生し、いわゆる放射音が発生することがある。 The exhaust part cover 100 manufactured in this way covers the sound generation part of the exhaust part and insulates noise generated from the exhaust part.
By the way, during operation of the engine, the vibration of the engine is transmitted to the exhaust part, and this vibration may further be transmitted to the exhaust part cover. This vibration may cause self-excited vibration of the exhaust part cover, which may generate so-called radiated sound.

ここで、排気部品カバー１００の固有振動数ｆｎは、ｆｎ＝１／（２π）・（ｋ／ｍ）０．５で示される。ｋは物質により数値が異なるばね定数、ｍは質量である。 Here, the natural frequency fn of the exhaust part cover 100 is represented by fn = 1 / (2π) · (k / m) 0.5 . k is a spring constant whose value varies depending on the substance, and m is mass.

外板１０１と内板１０３の厚さが異なる場合は、外板１０１と内板１０３の質量ｍが異なるので、外板１０１、及び内板１０３のそれぞれの固有振動数ｆｎが異なり、振動を減衰させることができる。   When the thicknesses of the outer plate 101 and the inner plate 103 are different, since the mass m of the outer plate 101 and the inner plate 103 is different, the natural frequencies fn of the outer plate 101 and the inner plate 103 are different, and the vibration is attenuated. Can be made.

しかし、このような排気部品カバー１００は、厚さがそれぞれ異なる外板１０１及び内板１０３を準備する必要があり、重量が重く部品点数が嵩む。
軽量且つ少ない部品点数で製造することができる排気部品カバーの提供が望まれる。 However, such an exhaust component cover 100 requires the preparation of the outer plate 101 and the inner plate 103 having different thicknesses, which increases the weight and the number of components.
It is desired to provide an exhaust part cover that is lightweight and can be manufactured with a small number of parts.

本発明は、軽量且つ少ない部品点数で製造することができる排気部品カバーの提供を課題とする。   An object of the present invention is to provide an exhaust part cover that is lightweight and can be manufactured with a small number of parts.

請求項１に係る発明は、排気部品を覆う排気部品カバーにおいて、
この排気部品カバーは、前記排気部品を覆う外板と、この外板の内側面に貼合わされるように配置され前記外板の一部が折曲げられて形成される内板とからなることを特徴とする。 The invention according to claim 1 is an exhaust part cover that covers the exhaust part.
The exhaust component cover includes an outer plate that covers the exhaust component, and an inner plate that is arranged to be bonded to the inner side surface of the outer plate and is formed by bending a part of the outer plate. Features.

請求項２に係る発明は、内板は、複数のパンチング穴が開けられていることを特徴とする。   The invention according to claim 2 is characterized in that the inner plate is provided with a plurality of punching holes.

請求項３に係る発明は、排気部品を覆う排気部品カバーにおいて、
この排気部品カバーは、前記排気部品を覆う内板と、この内板の外側面に貼合わされるように配置され前記内板の一部が折曲げられて形成される外板とからなることを特徴とする。 The invention according to claim 3 is the exhaust part cover that covers the exhaust part.
The exhaust part cover includes an inner plate that covers the exhaust part, and an outer plate that is disposed so as to be bonded to the outer surface of the inner plate and is formed by bending a part of the inner plate. Features.

請求項４に係る発明は、外板は、複数のパンチング穴が開けられていることを特徴とする。   The invention according to claim 4 is characterized in that the outer plate is provided with a plurality of punching holes.

請求項１に係る発明では、外板の一部を折曲げて内板を形成する。外板の一部を折曲げて内板を形成するため、１枚の板を準備すればよい。即ち、厚さの異なる２枚の板を準備する必要がないため、材料コストの低下を図ることができる。   In the invention according to claim 1, the inner plate is formed by bending a part of the outer plate. In order to fold a part of the outer plate to form the inner plate, a single plate may be prepared. That is, since it is not necessary to prepare two plates having different thicknesses, the material cost can be reduced.

また、外板の両端を折曲げて内板とするため、一対の内板間を開けることができる。即ち、外板の内側面全体に内板を貼合わせる必要がない。外板の内側面全体に内板を貼り合わせないことにより、排気部品カバーの軽量化を図ることができる。   Further, since both ends of the outer plate are bent to form the inner plate, the pair of inner plates can be opened. That is, it is not necessary to attach the inner plate to the entire inner surface of the outer plate. By not attaching the inner plate to the entire inner side surface of the outer plate, the weight of the exhaust part cover can be reduced.

加えて、外板の一部を折曲げて内板を形成することにより、外板のみが外観に表れる。外板が１枚板で形成されることにより、排気部品カバーの外観が良好になる。   In addition, by bending a part of the outer plate to form the inner plate, only the outer plate appears in the appearance. By forming the outer plate as a single plate, the appearance of the exhaust part cover is improved.

請求項２に係る発明では、内板は、複数のパンチング穴が開けられている。内板に複数のパンチング穴が開けられるため、内板の質量を軽くすることができる。内板の質量を軽くすることにより、更に排気部品カバーの軽量化を図ることができる。   In the invention according to claim 2, the inner plate has a plurality of punching holes. Since a plurality of punching holes are made in the inner plate, the mass of the inner plate can be reduced. By reducing the mass of the inner plate, the exhaust part cover can be further reduced in weight.

請求項３に係る発明では、内板の一部を折曲げて外板を形成する。内板の一部を折曲げて外板を形成するため、１枚の板を準備すればよい。即ち、厚さの異なる２枚の板を準備する必要がないため、材料コストの低下を図ることができる。   In the invention which concerns on Claim 3, a part of inner plate is bend | folded and an outer plate is formed. Since a part of the inner plate is bent to form the outer plate, a single plate may be prepared. That is, since it is not necessary to prepare two plates having different thicknesses, the material cost can be reduced.

また、内板の両端を折曲げて外板とするため、一対の外板間を開けることができる。即ち、内板の外側面全体に外板を貼合わせる必要がない。内板の外側面全体に外板を貼り合わせないことにより、排気部品カバーの軽量化を図ることができる。   Further, since both ends of the inner plate are bent to form the outer plate, a gap between the pair of outer plates can be opened. That is, it is not necessary to attach the outer plate to the entire outer surface of the inner plate. By not attaching the outer plate to the entire outer surface of the inner plate, the weight of the exhaust part cover can be reduced.

加えて、内板の両端を折曲げて外板とすることにより、内板の内周面はいわゆる面一（つらいち）となる。内板の内周面が面一であることにより、排気部品カバーの大きさを、排気部品の大きさにより近い大きさとすることができる。これにより、排気部品カバーのコンパクト化を図ることができる。   In addition, by bending both ends of the inner plate to form the outer plate, the inner peripheral surface of the inner plate becomes a so-called flat surface. Since the inner peripheral surface of the inner plate is flush, the size of the exhaust part cover can be made closer to the size of the exhaust part. Thereby, the exhaust part cover can be made compact.

請求項４に係る発明では、外板は、複数のパンチング穴が開けられている。外板に複数のパンチング穴が開けられるため、外板の質量を軽くすることができる。外板の質量を軽くすることにより、更に排気部品カバーの軽量化を図ることができる。   In the invention according to claim 4, the outer plate has a plurality of punching holes. Since a plurality of punching holes are made in the outer plate, the mass of the outer plate can be reduced. By reducing the mass of the outer plate, the exhaust part cover can be further reduced in weight.

本発明を実施するための最良の形態を添付図に基づいて以下に説明する。なお、図面は符号の向きに見るものとする。
図１は本発明に係る排気部品カバーの斜視図であり、排気部品カバー１０は、想像線で示される排気部品１１を覆う外板１２と、この外板１２の一部が折曲げられて形成される内板１３と、排気部品カバー１０を排気部品１１に取付けるために外板１２及び内板１３を貫通してなるボルト穴１４、１４とから構成される。 The best mode for carrying out the present invention will be described below with reference to the accompanying drawings. The drawings are viewed in the direction of the reference numerals.
FIG. 1 is a perspective view of an exhaust component cover according to the present invention. An exhaust component cover 10 is formed by folding an outer plate 12 covering an exhaust component 11 indicated by an imaginary line and a part of the outer plate 12. In order to attach the exhaust component cover 10 to the exhaust component 11, the outer plate 12 and the bolt holes 14, 14 penetrating the inner plate 13 are provided.

１５、１５は、外板１２に内板１３をスポット溶接する際に形成される溶接跡である。
外板１２に内板１３を接合する場合は、溶接、かしめ、リベット、ボルト止め、ねじ止め等任意の方法により接合することができ、スポット溶接に限られない。 15 and 15 are welding marks formed when the inner plate 13 is spot-welded to the outer plate 12.
When the inner plate 13 is joined to the outer plate 12, the inner plate 13 can be joined by any method such as welding, caulking, rivet, bolting, and screwing, and is not limited to spot welding.

外板１２の一部を折曲げて内板１３を形成することにより、外板１２のみが外観に表れる。外板１２が１枚板で形成されることにより、排気部品カバー１０の外観が良好になる。   By bending a part of the outer plate 12 to form the inner plate 13, only the outer plate 12 appears in the appearance. By forming the outer plate 12 as a single plate, the appearance of the exhaust part cover 10 is improved.

図２は図１の２矢視図であり、内板１３、１３は、外板１２の内側面に貼合わされるように外板１２の一部が折曲げられて形成される。
外板１２の一部を折曲げて内板１３を形成するため、１枚の板で排気部品カバー１０を製造することができる。
また、外板１２を折曲げた部分が、排気部品カバー１０の端部１７、１７となる。即ち、端部１７、１７は折曲げ形成されるため、高い強度を得ることができる。 FIG. 2 is a view taken in the direction of arrow 2 in FIG. 1, and the inner plates 13 and 13 are formed by bending a part of the outer plate 12 so as to be bonded to the inner surface of the outer plate 12.
Since the inner plate 13 is formed by bending a part of the outer plate 12, the exhaust part cover 10 can be manufactured with a single plate.
Further, the bent portions of the outer plate 12 become end portions 17 and 17 of the exhaust part cover 10. That is, since the end portions 17 and 17 are bent, high strength can be obtained.

加えて、外板１２の一部を折曲げて内板１３、１３を形成することにより、外板１２の縁部分１８、１８が内側に折り入れられる。トリミングによりざらついている縁部分１８、１８が内側に折り入れられるため、外部に露出する部分（例えば端部１７や外板１２）を平坦にすることができる。露出する部分を平坦にし、ざらついた部分を内側に折り入れることにより、排気部品カバー１０の取付作業の安全性が高まる。   In addition, by bending a part of the outer plate 12 to form the inner plates 13 and 13, the edge portions 18 and 18 of the outer plate 12 are folded inward. Since the edge portions 18 and 18 that are rough due to trimming are folded inward, portions exposed to the outside (for example, the end portion 17 and the outer plate 12) can be flattened. By flattening the exposed part and folding the rough part inward, the safety of the mounting operation of the exhaust part cover 10 is enhanced.

図３は図１の３−３線断面図であり、内板１３には複数のパンチング穴２０が開けられ、前端及び後端には絞り成形により形成されたテーパ部２１、２１が設けられる。
内板１３に複数のパンチング穴２０が開けられるため、内板の質量を軽くすることができる。内板１３の質量を軽くすることにより、排気部品カバー１０の軽量化を図ることができる。 FIG. 3 is a cross-sectional view taken along line 3-3 of FIG. 1, and a plurality of punching holes 20 are formed in the inner plate 13, and tapered portions 21 and 21 formed by drawing are provided at the front end and the rear end.
Since a plurality of punching holes 20 are formed in the inner plate 13, the mass of the inner plate can be reduced. By reducing the mass of the inner plate 13, the exhaust component cover 10 can be reduced in weight.

また、ボルト穴１４、１４は外板１２及び内板１３を貫通して設けられる。即ち、内板１３が配置されている部分にボルト穴１４を設ける。外板１２のみが配置されている部分に穴を開けた場合に比べ、ボルト穴１４を開けたことによる応力の集中を抑えることができ、強度を確保することができる。
加えて、内板１３が配置されている部分にボルト穴１４を設けることにより、外板１２と内板１３との接合強度を高めることもできる。 Further, the bolt holes 14 are provided through the outer plate 12 and the inner plate 13. That is, the bolt hole 14 is provided in the portion where the inner plate 13 is disposed. Compared with a case where a hole is formed in a portion where only the outer plate 12 is disposed, stress concentration due to the bolt hole 14 can be suppressed, and strength can be ensured.
In addition, the joint strength between the outer plate 12 and the inner plate 13 can be increased by providing the bolt holes 14 in the portion where the inner plate 13 is disposed.

加えて、外板１２及び内板１３を貫通させてボルト穴１４を設けるため、排気部品カバー１０を排気部品（図１符号１１）に取付ける際に、別途フランジ等を設ける必要がない。フランジ等を設ける必要がないため、排気部品カバー１０をコンパクトにすることができる。   In addition, since the bolt hole 14 is provided through the outer plate 12 and the inner plate 13, it is not necessary to provide a separate flange or the like when the exhaust component cover 10 is attached to the exhaust component (reference numeral 11 in FIG. 1). Since it is not necessary to provide a flange or the like, the exhaust part cover 10 can be made compact.

図４は図１の４−４線断面図であり、排気部品カバー１０が振動する際に関係する固有振動数ｆｎは、ｆｎ＝１／（２π）・（ｋ／ｍ）０．５で示される。ｋは物質により数値が異なるばね定数、ｍは質量である。 4 is a cross-sectional view taken along line 4-4 of FIG. 1, and the natural frequency fn related to the vibration of the exhaust part cover 10 is indicated by fn = 1 / (2π) · (k / m) 0.5 . It is. k is a spring constant whose value varies depending on the substance, and m is mass.

内板１３、１３に複数のパンチング穴２０が開けられるため、パンチング穴２０が開けられた分外板１２よりも内板１３の方が軽くなる。
内板１３は、外板１２の一部を折曲げて形成されるため、ばね定数ｋは内板１３、外板１２共に同一の値となる。上述の通り外板１２と内板１３の質量ｍが異なるため、外板と内板の固有振動数ｆｎは異なり、振動特性を向上させることができる。 Since the plurality of punching holes 20 are formed in the inner plates 13 and 13, the inner plate 13 is lighter than the outer plate 12 in which the punching holes 20 are formed.
Since the inner plate 13 is formed by bending a part of the outer plate 12, the spring constant k has the same value for both the inner plate 13 and the outer plate 12. Since the mass m of the outer plate 12 and the inner plate 13 is different as described above, the natural frequency fn of the outer plate and the inner plate is different, and the vibration characteristics can be improved.

また、外板１２の両端を折曲げて内板１３とするため、一対の内板１３、１３間を開けることができる。即ち、外板１２の内側面全体に内板１３を貼合わせる必要がない。外板１２の内側面全体に内板１３を貼り合わせないことにより、排気部品カバー１０の軽量化を図ることができる。
このような排気部品カバーの製造方法を次図で説明する。 Further, since both ends of the outer plate 12 are bent to form the inner plate 13, the pair of inner plates 13, 13 can be opened. That is, it is not necessary to bond the inner plate 13 to the entire inner surface of the outer plate 12. By not attaching the inner plate 13 to the entire inner surface of the outer plate 12, the exhaust part cover 10 can be reduced in weight.
A method for manufacturing such an exhaust part cover will be described with reference to the following drawings.

図５は本発明に係る排気部品カバーの製造方法を説明する図であり、まず（ａ）に示すように外板１２のうち、折曲げられて内板となる部分にパンチによりパンチング穴２０を開ける。   FIG. 5 is a view for explaining a method for manufacturing an exhaust part cover according to the present invention. First, as shown in FIG. 5A, a punching hole 20 is punched in a portion of the outer plate 12 which is bent to become an inner plate. Open.

次に、（ｂ）に示すように、パンチング穴２０を開けた部分を矢印（１）で示すように内側へ折曲げ、内板１３を形成する。
内板１３が形成された板を（ｃ）に示すように、プレス成形して排気部品カバー１０を製造する。 Next, as shown in (b), the portion where the punching hole 20 is opened is bent inward as shown by the arrow (1) to form the inner plate 13.
The plate on which the inner plate 13 is formed is press-molded as shown in FIG.

この後、必要に応じて絞りを加えることにより、任意の形状にすることができる。また、ボルト穴（図１符号１４）開けや内板１３と外板１２との接合は、内板１３の形成後任意のタイミングで行うことができる。   Thereafter, an arbitrary shape can be obtained by adding a diaphragm as necessary. Further, the bolt holes (reference numeral 14 in FIG. 1) and the joining between the inner plate 13 and the outer plate 12 can be performed at any timing after the inner plate 13 is formed.

以下に本発明に係る排気部品カバーの別実施例を説明する。
図６は図５の別実施例図であり、まず（ａ）に示すように内板２４を準備する。 Another embodiment of the exhaust part cover according to the present invention will be described below.
FIG. 6 is a diagram showing another embodiment of FIG. 5. First, an inner plate 24 is prepared as shown in FIG.

次に、（ｂ）に示すように、内板２４の両端を矢印（２）で示すように内側へ折曲げ、外板２５を形成する。
外板２５が形成された板を（ｃ）に示すように、プレス成形して排気部品カバー３０を製造する。 Next, as shown in (b), both ends of the inner plate 24 are bent inward as shown by arrows (2) to form the outer plate 25.
The plate on which the outer plate 25 is formed is press-molded as shown in FIG.

このように構成した場合であっても、本発明の効果を得ることができる。
さらに、内板２４の両端を折曲げて外板２５とすることにより、内板２４の内周面はいわゆる面一（つらいち）となる。内板２４の内周面が面一であることにより、排気部品カバー３０の大きさを、排気部品の大きさにより近い大きさとすることができる。これにより、排気部品カバー３０のコンパクト化を図ることができる。 Even if it is a case where it comprises in this way, the effect of this invention can be acquired.
Furthermore, by bending both ends of the inner plate 24 to form the outer plate 25, the inner peripheral surface of the inner plate 24 becomes a so-called flush surface. Since the inner peripheral surface of the inner plate 24 is flush, the size of the exhaust part cover 30 can be made closer to the size of the exhaust part. Thereby, the exhaust component cover 30 can be made compact.

尚、本発明に係る排気部品は、車両用マフラーの他、キャタライザー、一般排気管であってもよい。
また、パンチング穴を設けない外板の両端を折り曲げて内板を形成したものや、パンチング穴を設けた上で内板の両端を折り曲げて外板を形成したものであっても本発明の効果を得ることができ、本発明は実施例に記載されたものに限られない。 The exhaust part according to the present invention may be a catalyzer or a general exhaust pipe in addition to the vehicle muffler.
In addition, even if the inner plate is formed by bending both ends of the outer plate not provided with punching holes, or the outer plate is formed by bending both ends of the inner plate after providing punching holes. The present invention is not limited to those described in the examples.

本発明の排気部品カバーは、車両用マフラーの保護に好適である。   The exhaust part cover of the present invention is suitable for protecting a vehicle muffler.

本発明に係る排気部品カバーの斜視図である。It is a perspective view of the exhaust component cover which concerns on this invention. 図１の２矢視図である。FIG. 2 is a view taken in the direction of arrow 2 in FIG. 1. 図１の３−３線断面図である。FIG. 3 is a sectional view taken along line 3-3 in FIG. 1. 図１の４−４線断面図である。FIG. 4 is a sectional view taken along line 4-4 of FIG. 本発明に係る排気部品カバーの製造方法を説明する図である。It is a figure explaining the manufacturing method of the exhaust component cover which concerns on this invention. 図５の別実施例図である。It is another Example figure of FIG. 従来の技術の基本構成を説明する図である。It is a figure explaining the basic composition of the conventional technology.

符号の説明Explanation of symbols

１０、３０…排気部品カバー、１１…排気部品、１２…外板、１３…内板、２０…パンチング穴、２４…内板、２５…外板。   DESCRIPTION OF SYMBOLS 10, 30 ... Exhaust component cover, 11 ... Exhaust component, 12 ... Outer plate, 13 ... Inner plate, 20 ... Punching hole, 24 ... Inner plate, 25 ... Outer plate.

Claims (4)

排気部品を覆う排気部品カバーにおいて、
この排気部品カバーは、前記排気部品を覆う外板と、この外板の内側面に貼合わされるように配置され前記外板の一部が折曲げられて形成される内板とからなることを特徴とする排気部品カバー。 In the exhaust part cover that covers the exhaust part,
The exhaust component cover includes an outer plate that covers the exhaust component, and an inner plate that is arranged to be bonded to the inner side surface of the outer plate and is formed by bending a part of the outer plate. Special exhaust part cover. 前記内板は、複数のパンチング穴が開けられていることを特徴とする請求項１記載の排気部品カバー。   The exhaust part cover according to claim 1, wherein the inner plate has a plurality of punching holes. 排気部品を覆う排気部品カバーにおいて、
この排気部品カバーは、前記排気部品を覆う内板と、この内板の外側面に貼合わされるように配置され前記内板の一部が折曲げられて形成される外板とからなることを特徴とする排気部品カバー。 In the exhaust part cover that covers the exhaust part,
The exhaust part cover includes an inner plate that covers the exhaust part, and an outer plate that is disposed so as to be bonded to the outer surface of the inner plate and is formed by bending a part of the inner plate. Special exhaust part cover. 前記外板は、複数のパンチング穴が開けられていることを特徴とする請求項３記載の排気部品カバー。   The exhaust part cover according to claim 3, wherein the outer plate has a plurality of punching holes.
JP2008295892A 2008-11-19 2008-11-19 Exhaust part cover and manufacturing method thereof Expired - Fee Related JP5086976B2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP2008295892A JP5086976B2 (en) 2008-11-19 2008-11-19 Exhaust part cover and manufacturing method thereof
MYPI20094807A MY147917A (en) 2008-11-19 2009-11-12 Exhaust component cover
US12/616,963 US8028795B2 (en) 2008-11-19 2009-11-12 Exhaust component cover
EP09252640.9A EP2199561B1 (en) 2008-11-19 2009-11-18 Exhaust component cover
CN2009102245958A CN101737138B (en) 2008-11-19 2009-11-19 Exhaust component cover

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2008295892A JP5086976B2 (en) 2008-11-19 2008-11-19 Exhaust part cover and manufacturing method thereof

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JP2010121527A true JP2010121527A (en) 2010-06-03
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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63180115U (en) * 1987-05-08 1988-11-21
JPH0932545A (en) * 1995-07-17 1997-02-04 Mitsubishi Motors Corp Heat insulator structure
JPH11107774A (en) * 1997-09-30 1999-04-20 Unipres Corp Sound absorbing cover
JP2001140642A (en) * 1999-11-18 2001-05-22 Fuji Heavy Ind Ltd Cover structure
JP2002087078A (en) * 2000-09-13 2002-03-26 Kikuchi Co Ltd Noise insulation part for vehicle
JP2004092543A (en) * 2002-08-30 2004-03-25 Sanwa Packing Kogyo Co Ltd Cover device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63180115U (en) * 1987-05-08 1988-11-21
JPH0932545A (en) * 1995-07-17 1997-02-04 Mitsubishi Motors Corp Heat insulator structure
JPH11107774A (en) * 1997-09-30 1999-04-20 Unipres Corp Sound absorbing cover
JP2001140642A (en) * 1999-11-18 2001-05-22 Fuji Heavy Ind Ltd Cover structure
JP2002087078A (en) * 2000-09-13 2002-03-26 Kikuchi Co Ltd Noise insulation part for vehicle
JP2004092543A (en) * 2002-08-30 2004-03-25 Sanwa Packing Kogyo Co Ltd Cover device

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