JPH09242561A - Insulator for exhaust manifold for internal combustion engine - Google Patents

Insulator for exhaust manifold for internal combustion engine

Info

Publication number
JPH09242561A
JPH09242561A JP8085596A JP8085596A JPH09242561A JP H09242561 A JPH09242561 A JP H09242561A JP 8085596 A JP8085596 A JP 8085596A JP 8085596 A JP8085596 A JP 8085596A JP H09242561 A JPH09242561 A JP H09242561A
Authority
JP
Japan
Prior art keywords
sound absorbing
heat insulating
absorbing material
outer peripheral
sash member
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP8085596A
Other languages
Japanese (ja)
Other versions
JP3090419B2 (en
Inventor
Michio Fujino
道夫 藤野
Koji Tsuzuki
浩二 都筑
Masafumi Tanaka
真文 田中
Itaru Shibata
格 柴田
Riichi Nishide
利一 西出
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nissan Motor Co Ltd
Nichias Corp
Original Assignee
Nissan Motor Co Ltd
Nichias Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nissan Motor Co Ltd, Nichias Corp filed Critical Nissan Motor Co Ltd
Priority to JP08080855A priority Critical patent/JP3090419B2/en
Publication of JPH09242561A publication Critical patent/JPH09242561A/en
Application granted granted Critical
Publication of JP3090419B2 publication Critical patent/JP3090419B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Abstract

PROBLEM TO BE SOLVED: To provide an insulator for exhaust manifold for internal combustion engine, of which heat insulating and sound absorbing performance is increased. SOLUTION: Inside of a metal cover member A is formed with a recessed part a1 for housing a heat insulating and sound absorbing material B, and the surface of the heat insulating and sound absorbing material B is restricted by a sash member C, which is formed of an outer peripheral sash member c1 and an inner peripheral sash member c2 , and the outer peripheral sash member c1 is held by a clinch part a2 formed in the peripheral edge of the cover member A, and the outer peripheral sash member c1 and the inner peripheral sash member c2 are fixed to the cover member side by spot welding (i). Crush of the heat insulating and sound absorbing material is thereby prevented, and the splash of the fiber from an exposed surface of the end is prevented.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【発明の属する技術分野】本発明は、内燃機関の排気マ
ニホルド用インシュレータの改良に関する。
TECHNICAL FIELD The present invention relates to an improvement in an insulator for an exhaust manifold of an internal combustion engine.

【0002】[0002]

【従来の技術】従来、内燃機関の排気マニホルドから放
出する熱や音を遮断するためのインシュレータとして、
鋼板等の金属板を椀状に成形した覆い部材が知られてい
る。しかし、近年、自動車の軽量化に伴い、内燃機関の
排気マニホルド部品の肉厚が薄くなり、そのマニホルド
から放出する騒音が大きくなり、熱も高くなる傾向にな
ってきている。更に、国内および諸外国(特にアメリ
カ、ヨーロッパ)での騒音規制や排気ガス規制が厳しく
なってきているため、従来のインシュレータでは規制の
対応が難しくなってきている。
2. Description of the Related Art Conventionally, as an insulator for cutting off heat and sound emitted from an exhaust manifold of an internal combustion engine,
A cover member formed by forming a metal plate such as a steel plate into a bowl shape is known. However, in recent years, as the weight of automobiles has been reduced, the thickness of exhaust manifold parts of internal combustion engines has become thinner, and the noise emitted from the manifold has become larger and the heat tends to become higher. Furthermore, noise regulations and exhaust gas regulations in Japan and other countries (especially in the United States and Europe) are becoming stricter, and it is becoming difficult for conventional insulators to comply with the regulations.

【0003】[0003]

【発明が解決しようとする課題】上記問題点に鑑み、本
発明者等は、先に特願平7−221099号において、
金属製の覆い部材の内側に、無機質繊維マットと、その
表面に重ねた無機質耐熱クロスとから成る断熱吸音材を
張り合わせて構成した内燃機関の排気マニホルド用イン
シュレータを提案している。
In view of the above problems, the inventors of the present invention previously disclosed in Japanese Patent Application No. 7-221099.
An insulator for an exhaust manifold of an internal combustion engine is proposed in which a heat insulating and sound absorbing material composed of an inorganic fiber mat and an inorganic heat resistant cloth laminated on the surface of the metal covering member is laminated inside.

【0004】前記構成のインシュレータによれば、無機
質繊維マットによって優れた吸音機能が得られ、かつ無
機質耐熱クロスによりマット表面からの繊維の飛散や崩
れを防止できる。
According to the insulator having the above structure, the inorganic fiber mat has an excellent sound absorbing function, and the inorganic heat resistant cloth can prevent the fibers from scattering and collapsing from the mat surface.

【0005】しかし、上記構成において、例えば図9に
示すように、鋼板製覆い部材1の一部を折り返したクリ
ンチ部1aで、無機質断熱マット2と無機質耐熱クロス
3とから成る断熱吸音材を強く挾み込んで固く保持する
構造にすると、クリンチ部および周辺の断熱吸音材がつ
ぶれて薄くなり、断熱吸音効果が低下する不具合を招
く。
However, in the above structure, as shown in FIG. 9, for example, a heat insulating and sound absorbing material composed of an inorganic heat insulating mat 2 and an inorganic heat resistant cloth 3 is strongly formed by a clinch portion 1a obtained by folding a part of a steel plate covering member 1. If the structure is sandwiched and held firmly, the adiabatic sound absorbing material in the clinch portion and the surrounding area is crushed and thinned, resulting in a problem that the adiabatic sound absorbing effect is reduced.

【0006】また、前記覆い部材の形状によって、その
内側全面にわたって断熱吸音材を張り合わせることがで
きない場合、その断熱吸音材の端部の固定ができなくな
り、端部の露出面から繊維が飛散する。さらにまた、覆
い部材内面に張り合わせた断熱吸音材は、クリンチ部か
ら離れた部分で垂れが発生する傾向がある。
Further, when the heat insulating and sound absorbing material cannot be adhered to the entire inner surface due to the shape of the covering member, the end portion of the heat insulating and sound absorbing material cannot be fixed, and the fibers are scattered from the exposed surface of the end portion. . Furthermore, the heat insulating sound absorbing material stuck to the inner surface of the cover member tends to hang down at a portion away from the clinch portion.

【0007】本発明は、前述した問題を全て解消するた
めになされたものであって、断熱吸音材をつぶすことな
く保持することができ、かつ端部の露出面からの繊維の
飛散を防止すると共に垂れ下がりも防止できる内燃機関
の排気マニホルド用インシュレータを提供することを目
的としている。
The present invention has been made in order to solve all of the above-mentioned problems, and it is possible to hold an adiabatic sound absorbing material without crushing it and prevent scattering of fibers from the exposed surface of the end portion. At the same time, it is an object of the present invention to provide an insulator for an exhaust manifold of an internal combustion engine, which can prevent sagging.

【0008】[0008]

【課題を解決するための手段】上記目的を達成するた
め、請求項1の発明による内燃機関の排気マニホルド用
インシュレータは、金属製覆い部材の内側に、無機質繊
維マットの表面に無機質耐熱クロスを設けてなる断熱吸
音材の厚さ分の凹部を形成し、この凹部に入れた断熱吸
音材の表面に、その外周縁部分に当てられる外周サッシ
部材を設け、前記外周サッシ部材を覆い部材の周縁側に
形成した折り返しクリンチ部で保持したことを要旨とし
ている。
In order to achieve the above-mentioned object, an insulator for an exhaust manifold of an internal combustion engine according to the invention of claim 1 is provided with an inorganic heat resistant cloth on the surface of an inorganic fiber mat inside a metallic covering member. A heat insulating sound absorbing material having a thickness corresponding to the thickness of the heat insulating sound absorbing material is formed. The gist is that it is held by the folded clinch portion formed on the.

【0009】また、請求項2の発明は、請求項1の発明
において、前記断熱吸音材に当てられる外周サッシ部材
を平板となし、その平板を覆い部材側にスポット溶接で
固定することを要旨としている。
The invention of claim 2 is based on the invention of claim 1, wherein the outer peripheral sash member applied to the heat insulating and sound absorbing material is a flat plate, and the flat plate is fixed to the cover member side by spot welding. There is.

【0010】また、請求項3の発明は、請求項1の発明
において、前記断熱吸音材に当てられる外周サッシ部材
をL形屈曲板となし、その一方の屈曲板部を前記凹部に
挿入し、他方の屈曲板部を断熱吸音材表面に当て付けた
ことを要旨としている。
According to a third aspect of the present invention, in the first aspect of the present invention, the outer peripheral sash member applied to the heat insulating and sound absorbing material is an L-shaped bent plate, and one of the bent plate portions is inserted into the recess, The gist is that the other bent plate portion is applied to the surface of the heat insulating and sound absorbing material.

【0011】さらに、請求項4の発明は、請求項1の発
明において、前記外周サッシ部材間に橋わたされ、断熱
吸音材の内側部分に当てられる内側サッシ部材を設ける
と共に、内側サッシ部材を平板となし、前記内側サッシ
部材を断熱吸音材の表面側から凹部内に設けた台座にス
ポット溶接で固定したことを要旨としている。
Further, in the invention of claim 4, in the invention of claim 1, an inner sash member bridging between the outer peripheral sash members and applied to an inner portion of the heat insulating and sound absorbing material is provided, and the inner sash member is flat. The gist is that the inner sash member is fixed by spot welding from the surface side of the heat insulating and sound absorbing material to a pedestal provided in the recess.

【0012】本発明の基本的構成によれば、断熱吸音材
を金属製覆い部材に形成した凹部に入れ込み、これをサ
ッシ部材によって覆い部材側に抑え付ける構成としたの
で、断熱吸音材をつぶすことなく覆い部材に保持するこ
とができ、かつ断熱吸音材の端部の露出面からの繊維の
飛散を防止することができる。
According to the basic construction of the present invention, the heat insulating and sound absorbing material is put into the concave portion formed in the metal covering member and is held by the sash member on the covering member side. Instead, it can be held by the cover member without being scattered, and the fibers can be prevented from scattering from the exposed surface of the end portion of the heat insulating and sound absorbing material.

【0013】[0013]

【発明の実施の形態】図1〜図2に示すように、金属製
覆い部材Aの内側に凹部a1を形成し、その凹部内に、
無機質繊維マットb1とその表面に無機質耐熱クロスと
から成る断熱吸音材Bを入れ、その表面に、その外周部
分に当てられる外周サッシ部材c1と、外周サッシ部材
1間に橋わたされ、断熱吸音材Bの内側部分に当てら
れる内側サッシ部材c2とから成るサッシ部材Cを設
け、前記外周サッシ部材c1を覆い部材Aの周縁側に形
成したクリンチ部a2で保持し、更に外周サッシ部材c1
および内側サッシ部材をスポット溶接部イで覆い部材側
に固定する。
BEST MODE FOR CARRYING OUT THE INVENTION As shown in FIGS. 1 and 2, a recess a 1 is formed inside a metal covering member A, and the recess a 1 is formed in the recess.
An adiabatic sound absorbing material B composed of an inorganic fiber mat b 1 and an inorganic heat resistant cloth is put on the surface thereof, and the surface is bridged between an outer peripheral sash member c 1 applied to the outer peripheral portion thereof and an outer peripheral sash member c 1 . A sash member C composed of an inner sash member c 2 applied to an inner portion of the heat insulating sound absorbing material B is provided, and the outer peripheral sash member c 1 is held by a clinch portion a 2 formed on the peripheral side of the cover member A, and further the outer periphery is held. Sash member c 1
Then, the inner sash member is fixed to the cover member side with the spot welded portion a.

【0014】[0014]

【実施例】以下、図面に示す本発明の実施例を説明す
る。図1〜図8において、Aはインシュレータの本体を
形成する2枚重ね鋼板製の覆い部材、a1は覆い部材の
内側に後記する断熱吸音材の厚さ分絞り加工して形成し
た凹部である。
Embodiments of the present invention shown in the drawings will be described below. 1 to 8, A is a cover member made of a double-layered steel plate that forms the body of the insulator, and a 1 is a recess formed inside the cover member by drawing the thickness of a heat insulating and sound absorbing material to be described later. .

【0015】前記覆い部材Aは、鋼板の使用が好ましい
が、それに限らずステンレス、アルミ合金等、各種の金
属材料を任意に選択使用することができる。Bは断熱吸
音材であり、無機質繊維マットb1の表面に無機質耐熱
クロスb2を張り合わせたものである。
The cover member A is preferably a steel plate, but is not limited thereto, and various metal materials such as stainless steel and aluminum alloy can be arbitrarily selected and used. B is a heat insulating and sound absorbing material, which is obtained by laminating an inorganic heat resistant cloth b 2 on the surface of the inorganic fiber mat b 1 .

【0016】前記無機質繊維マットb1には、ガラス繊
維、シリカ繊維、セラミック繊維等が挙げられる。前記
無機質耐熱クロスには、ガラスクロスやシリカクロスの
使用が好ましい。
Examples of the inorganic fiber mat b 1 include glass fiber, silica fiber, ceramic fiber and the like. It is preferable to use glass cloth or silica cloth as the inorganic heat resistant cloth.

【0017】Cは前記覆い部材Aの凹部a1に入れた前
記断熱吸音材Bをその表面で抑え込むためのサッシ部材
であって、前記断熱吸音材の外周部分に当てられる外周
サッシ部材c1と、外周サッシ部材c1間に橋わたされ、
断熱吸音材の内側部分に当てられる内側サッシ部材c2
とで形成されている。
C is a sash member for holding the heat insulating and sound absorbing material B in the recess a 1 of the cover member A on its surface, and an outer peripheral sash member c 1 which is applied to the outer peripheral portion of the heat insulating and sound absorbing material. , Bridged between the outer sash members c 1 ,
Inner sash member c 2 applied to the inner portion of the heat insulating and sound absorbing material
And formed.

【0018】前記外周サッシ部材c1のうち、覆い部材
側のサッシ部分は、図4に示した手段により覆い部材側
に保持されている。即ち、外周サッシ部材c1をL形屈
曲板として形成し、その一方の屈曲板部を前記凹部a1
に挿入し、他方の屈曲板部を断熱吸音材Aの表面に当て
付け、その上を覆い部材Aの周縁側の折り返しクリンチ
部a2で押し付けて保持している。
Of the outer peripheral sash member c 1 , the sash portion on the cover member side is held on the cover member side by the means shown in FIG. That is, the outer peripheral sash member c 1 is formed as an L-shaped bent plate, and one of the bent plate portions is formed into the recess a 1.
, The other bent plate portion is brought into contact with the surface of the heat insulating and sound absorbing material A, and the upper portion thereof is pressed and held by the folded clinch portion a 2 on the peripheral side of the covering member A.

【0019】前記外周サッシ部材c1のうち、図1の丸
印P1で示したサッシ形状部のRの小さいサッシ部分
は、図5に示した手段により覆い部材側に保持されてい
る。即ち、外周サッシ部材c1を平板となし、その平板
の一部を覆い部材側にスポット溶接で固定し、他の部分
で断熱吸音材Bの表面を押し付けて保持している。な
お、イはスポット溶接部である。
Of the outer peripheral sash member c 1 , the sash portion having a small R of the sash-shaped portion indicated by the circle P 1 in FIG. 1 is held on the cover member side by the means shown in FIG. That is, the outer peripheral sash member c 1 is formed as a flat plate, a part of the flat plate is covered and fixed to the member side by spot welding, and the other part is pressed and held by the surface of the heat insulating and sound absorbing material B. In addition, a is a spot weld.

【0020】また、外周サッシ部材c1のうち、図1の
丸印P2で示した直線部またはRの大きなサッシ部分
は、図6に示した手段により断熱吸音材Bを覆い部材側
に保持されている。即ち、外周サッシ部材c1をL形屈
曲板として形成し、その一方の屈曲板部を前記凹部a1
に挿入し、他方の屈曲板部を断熱吸音材Bの表面に当て
付けて保持している。
Further, in the outer peripheral sash member c 1 , a straight line portion indicated by a circle P 2 in FIG. 1 or a sash portion having a large R is held by the means shown in FIG. Has been done. That is, the outer peripheral sash member c 1 is formed as an L-shaped bent plate, and one of the bent plate portions is formed into the recess a 1.
, And the other bent plate portion is held against the surface of the heat insulating and sound absorbing material B.

【0021】図7は、L形屈曲板とした外周サッシ部材
1と平板の内側サッシ部材c2との連結部分を示したも
のである。前記内側サッシ部材c2は、図8に示す手段
により覆い部材側に保持されている。即ち、サッシ部材
2は平板となし、この平板を断熱吸音材Aのクロス部
材b2の表面側から凹部a1内に設けた台座Dにスポット
溶接部イで固定して保持している。
FIG. 7 shows a connecting portion between an outer peripheral sash member c 1 which is an L-shaped bent plate and a flat inner sash member c 2 . The inner sash member c 2 is held on the cover member side by means shown in FIG. That is, the sash member c 2 is a flat plate, and the flat plate is fixed and held by the spot welded portion a to the pedestal D provided in the recess a 1 from the surface side of the cross member b 2 of the heat insulating and sound absorbing material A.

【0022】上記インシュレータの構成によれば、下記
の通りの効果が得られる。 (1)金属製覆い部材の断熱吸音材が入る部分を吸音材
の厚さ分絞り加工して凹部となし、その凹部に断熱吸音
材が収められているので、断熱吸音材がつぶれるのを防
ぐことができる。 (2)断熱吸音材を凹部に入れることで、端面の露出が
なくなるので、露出面からの繊維の飛散を防ぐことがで
きる。 (3)断熱吸音材を保持する手段として、断熱吸音材を
それに合わせて形成したサッシ部材で抑え、覆い部材の
周縁側では、その一部を折り返して形成したクリンチ部
で前記サッシ部材を保持し、更に内側部分では、サッシ
部材を覆い部材側に溶接で固定することで、断熱吸音材
全体を覆い部材に強固に組み付けることができる。 (4)また、前記サッシ部材を、断熱吸音材の外周部分
を抑える外周サッシ部材だけでなく、外周サッシ部材間
に橋わたされ、断熱吸音材の内側部分を抑える内側サッ
シ部材を設けることにより、断熱吸音材の垂れがより確
実に防止でき、同時にサッシ部材の強度を高めることが
できる。
According to the structure of the insulator, the following effects can be obtained. (1) The portion of the metal cover member where the heat insulating and sound absorbing material is inserted is formed into a recess by drawing the thickness of the sound absorbing material, and the heat insulating and sound absorbing material is housed in the recess, so that the heat insulating and sound absorbing material is prevented from being crushed. be able to. (2) Since the end surface is not exposed by putting the heat insulating and sound absorbing material in the recess, it is possible to prevent the fibers from scattering from the exposed surface. (3) As a means for holding the heat insulating and sound absorbing material, the heat insulating and sound absorbing material is held down by a sash member formed in accordance with the heat insulating and sound absorbing material, and the sash member is held by a clinch portion formed by folding back a part of the cover member at the peripheral edge side. Further, in the inner portion, by fixing the sash member to the cover member side by welding, the entire heat insulating and sound absorbing material can be firmly assembled to the cover member. (4) Further, the sash member is provided not only with an outer peripheral sash member that suppresses the outer peripheral portion of the heat insulating and sound absorbing material, but also with an inner sash member that bridges between the outer peripheral sash members and suppresses the inner portion of the heat insulating and sound absorbing material It is possible to more surely prevent the heat insulating sound absorbing material from dripping, and at the same time, increase the strength of the sash member.

【0023】[0023]

【発明の効果】以上、詳述したように、本発明によれ
ば、断熱吸音材のつぶれをなくして吸音効果の低下を防
ぎ、かつ断熱吸音材の端部の露出面からの繊維の飛散を
防止することができる内燃機関の排気マニホルド用イン
シュレータが得られる。
As described above in detail, according to the present invention, the heat insulating sound absorbing material is prevented from being crushed to prevent the sound absorbing effect from being deteriorated, and the fibers are prevented from scattering from the exposed surface of the end of the heat insulating sound absorbing material. An insulator for an exhaust manifold of an internal combustion engine that can be prevented is obtained.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明の一実施例を示す内燃機関の排気マニホ
ルド用インシュレータの平面図である。
FIG. 1 is a plan view of an exhaust manifold insulator of an internal combustion engine showing an embodiment of the present invention.

【図2】前記インシュレータの側面図である。FIG. 2 is a side view of the insulator.

【図3】サッシ部材の平面図である。FIG. 3 is a plan view of a sash member.

【図4】断熱吸音材の外周縁を保持する手段の拡大断面
図である。
FIG. 4 is an enlarged cross-sectional view of means for holding the outer peripheral edge of the heat insulating sound absorbing material.

【図5】図1の丸印P1で示した部分の拡大断面図であ
る。
5 is an enlarged cross-sectional view of a portion indicated by a circle P 1 in FIG.

【図6】図1の丸印P2で示した部分の拡大断面図であ
る。
6 is an enlarged cross-sectional view of a portion indicated by a circle P 2 in FIG.

【図7】外周サッシ部材と内側サッシ部材の連結部を示
す拡大断面図である。
FIG. 7 is an enlarged cross-sectional view showing a connecting portion between an outer peripheral sash member and an inner sash member.

【図8】内側サッシ部材を覆い部材に溶接で固定する部
分の拡大断面図である。
FIG. 8 is an enlarged cross-sectional view of a portion where the inner sash member is fixed to the cover member by welding.

【図9】断熱吸音材が覆い部材のクリンチ部でつぶされ
た状態を示す断面図である。
FIG. 9 is a cross-sectional view showing a state in which the heat insulating sound absorbing material is crushed by the clinch portion of the covering member.

【符号の説明】[Explanation of symbols]

A 覆い部材 a1 凹部 a2 クリンチ部 B 断熱吸音材 b1 無機質繊維マット b2 無機質耐熱クロス C サッシ部材 c1 外周サッシ部材 c2 内側サッシ部材 D 台座 イ 溶接部 1 覆い部材 1a クリンチ部 2 無機質繊維マット 3 無機質耐熱クロスA cover member a 1 concave part a 2 clinch part B heat insulation sound absorbing material b 1 inorganic fiber mat b 2 inorganic heat resistant cloth C sash member c 1 outer sash member c 2 inner sash member D pedestal 1 welded part 1 cover member 1a clinch part 2 inorganic material Fiber mat 3 Inorganic heat resistant cloth

───────────────────────────────────────────────────── フロントページの続き (72)発明者 田中 真文 神奈川県横浜市鶴見区岸谷3−18−32− 402 (72)発明者 柴田 格 神奈川県横浜市神奈川区宝町2番地 日産 自動車株式会社内 (72)発明者 西出 利一 神奈川県横浜市神奈川区宝町2番地 日産 自動車株式会社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Masafumi Tanaka 3-18-32-402 Kishitani, Tsurumi-ku, Yokohama-shi, Kanagawa Prefecture (72) Inventor Shibata No. 2, Takaracho, Kanagawa-ku, Yokohama-shi, Kanagawa Nissan Motor Co., Ltd. (72) Inventor Riichi Nishide 2 Takaracho, Kanagawa-ku, Yokohama-shi, Kanagawa Nissan Motor Co., Ltd.

Claims (4)

【特許請求の範囲】[Claims] 【請求項1】 金属製覆い部材の内側に、無機質繊維マ
ットの表面に無機質耐熱クロスを設けてなる断熱吸音材
の厚さ分の凹部を形成し、前記凹部に入れた断熱吸音材
の表面に、その外周縁部分に当てられる外周サッシ部材
を設け、前記外周サッシ部材を覆い部材の周縁側に形成
した折り返しクリンチ部で保持したことを特徴とする内
燃機関の排気マニホルド用インシュレータ。
1. A concave portion having the thickness of the heat insulating and sound absorbing material, which is formed by providing an inorganic heat resistant cloth on the surface of the inorganic fiber mat, is formed inside the metal covering member, and the heat insulating and sound absorbing material is placed on the surface of the heat insulating and sound absorbing material. An insulator for an exhaust manifold of an internal combustion engine, comprising: an outer peripheral sash member applied to an outer peripheral edge portion of the outer peripheral sash member, and the outer peripheral sash member being held by a folded clinch portion formed on a peripheral edge side of the cover member.
【請求項2】 前記断熱吸音材に当てられる外周サッシ
部材を平板となし、その平板を覆い部材側にスポット溶
接で固定した請求項1に記載の内燃機関の排気マニホル
ド用インシュレータ。
2. The insulator for an exhaust manifold of an internal combustion engine according to claim 1, wherein the outer peripheral sash member applied to the heat insulating and sound absorbing member is a flat plate, and the flat plate is fixed to the cover member by spot welding.
【請求項3】 前記断熱吸音材に当てられる外周サッシ
部材をL形屈曲板となし、その一方の屈曲板部を前記凹
部に挿入し、他方の屈曲板部を断熱吸音材表面に当て付
けた請求項1に記載の内燃機関の排気マニホルド用イン
シュレータ。
3. An outer peripheral sash member applied to the heat insulating sound absorbing material is an L-shaped bent plate, one bent plate portion is inserted into the recess, and the other bent plate portion is applied to the surface of the heat insulating sound absorbing material. An exhaust manifold insulator for an internal combustion engine according to claim 1.
【請求項4】 前記外周サッシ部材間を橋わたされ、断
熱吸音材の内側部分に当てられる内側サッシ部材を設け
ると共に、前記内側サッシ部材を平板となし、内側サッ
シ部材を断熱吸音材の表面側から凹部内に設けた台座に
スポット溶接で固定した請求項1に記載の内燃機関の排
気マニホルド用インシュレータ。
4. An inner sash member bridging between the outer peripheral sash members and applied to an inner portion of the heat insulating and sound absorbing material is provided, and the inner sash member is a flat plate, and the inner sash member is the surface side of the heat insulating and sound absorbing material. The exhaust manifold insulator for an internal combustion engine according to claim 1, wherein the insulator is fixed by spot welding to a pedestal provided in the recess.
JP08080855A 1996-03-07 1996-03-07 Insulator for exhaust manifold of internal combustion engine Expired - Fee Related JP3090419B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP08080855A JP3090419B2 (en) 1996-03-07 1996-03-07 Insulator for exhaust manifold of internal combustion engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP08080855A JP3090419B2 (en) 1996-03-07 1996-03-07 Insulator for exhaust manifold of internal combustion engine

Publications (2)

Publication Number Publication Date
JPH09242561A true JPH09242561A (en) 1997-09-16
JP3090419B2 JP3090419B2 (en) 2000-09-18

Family

ID=13729968

Family Applications (1)

Application Number Title Priority Date Filing Date
JP08080855A Expired - Fee Related JP3090419B2 (en) 1996-03-07 1996-03-07 Insulator for exhaust manifold of internal combustion engine

Country Status (1)

Country Link
JP (1) JP3090419B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000356129A (en) * 1999-06-14 2000-12-26 Mitsuike Kogyo Kk Fixing method of thermal insulating member for exhaust pipe
JP2001065363A (en) * 1999-08-27 2001-03-13 Sanwa Packing Kogyo Co Ltd Heat insulator
US6966402B2 (en) * 2003-06-02 2005-11-22 Dana Corporation Acoustical heat shield
JP2008545568A (en) * 2005-06-07 2008-12-18 リーター テクノロジーズ アー ゲー Combined body bottom lining

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000356129A (en) * 1999-06-14 2000-12-26 Mitsuike Kogyo Kk Fixing method of thermal insulating member for exhaust pipe
JP2001065363A (en) * 1999-08-27 2001-03-13 Sanwa Packing Kogyo Co Ltd Heat insulator
US6966402B2 (en) * 2003-06-02 2005-11-22 Dana Corporation Acoustical heat shield
JP2008545568A (en) * 2005-06-07 2008-12-18 リーター テクノロジーズ アー ゲー Combined body bottom lining

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JP3090419B2 (en) 2000-09-18

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