JPS59176416A - Muffler of automobile - Google Patents

Muffler of automobile

Info

Publication number
JPS59176416A
JPS59176416A JP5207283A JP5207283A JPS59176416A JP S59176416 A JPS59176416 A JP S59176416A JP 5207283 A JP5207283 A JP 5207283A JP 5207283 A JP5207283 A JP 5207283A JP S59176416 A JPS59176416 A JP S59176416A
Authority
JP
Japan
Prior art keywords
cylindrical body
muffler
aluminum
end plate
stay
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
JP5207283A
Other languages
Japanese (ja)
Other versions
JPH0147604B2 (en
Inventor
Kazuhiko Ida
居田　一彦
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP5207283A priority Critical patent/JPS59176416A/en
Publication of JPS59176416A publication Critical patent/JPS59176416A/en
Publication of JPH0147604B2 publication Critical patent/JPH0147604B2/ja
Granted legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/18—Construction facilitating manufacture, assembly, or disassembly
    • F01N13/1861—Construction facilitating manufacture, assembly, or disassembly the assembly using parts formed by casting or moulding
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2450/00—Methods or apparatus for fitting, inserting or repairing different elements
    • F01N2450/22—Methods or apparatus for fitting, inserting or repairing different elements by welding or brazing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2470/00—Structure or shape of gas passages, pipes or tubes
    • F01N2470/10—Tubes having non-circular cross section
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2470/00—Structure or shape of gas passages, pipes or tubes
    • F01N2470/28—Tubes being formed by moulding or casting x
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2530/00—Selection of materials for tubes, chambers or housings
    • F01N2530/06—Aluminium or alloys thereof

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Silencers (AREA)

Abstract

PURPOSE:To enhance the strength and the degree of freedom in design of a muffler by having the external shell thereof consist of a cylindrical body and a pair of side plates attached to the opposed open end, shaping the cylindrical body and the side plates out of aluminum and integrally forming both a tail cutter mounting flange and a stay on each of the side plates. CONSTITUTION:A muffler 1 has the external shell which is made up by a cylindrical body 2 and a pair of side plates 3 and 4 attached to the opposed side openings of the cylindrical body 2 by welding method. Those making up components are manufactured from casted aluminum. An engine-side exhaust pipe is connected to the side plate 3 and a flange 6 which surrounds a through-hole 5 serving for mounting the tail cutter 15 and a stay mounting seat 7 are integrally formed on the exhaust-side side plate 4.

Description

【発明の詳細な説明】 〔技術分野〕 本発明は自動車用マフラー、殊にその外殻に関するもの
である。DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to a muffler for an automobile, and particularly to an outer shell thereof.

〔背景技術〕[Background technology]

自動車用のマフラーは、その外殻が従来鋼板にて形成さ
れていたのであるが、自動車の軽量化の要望が高くなっ
ている現在においては、鋼板製の外殻のマフラーは重く
て好ましくない。また車体への取付用のためのステーと
の連結のために他部品としての取付座を溶接固定しなく
てはならず、排気管やテールカッターも溶接連結してお
り、更には自動車の後方からはマフラーの後端面が見え
るわけであるが上記取付座やテールカッターなでの溶接
跡があることから見苦しいものであった。The outer shell of an automobile muffler has conventionally been formed of a steel plate, but as there is now a growing demand for lighter automobiles, mufflers with an outer shell made of a steel plate are undesirable because they are heavy. In addition, the mounting base as other parts must be welded and fixed in order to connect it to the stay for mounting on the car body, and the exhaust pipe and tail cutter are also welded and connected, and furthermore, from the rear of the car. The rear end of the muffler was visible, but it was unsightly because there were weld marks from the mounting seat and tail cutter.

軽量化の点から外殻をアルミニウム板で形成したものが
市場に出てきてはいるが、重量の点を除く他の問題点は
依然として残っている。In order to reduce weight, models with outer shells made of aluminum plates have appeared on the market, but other problems besides weight still remain.

〔発明の目的〕[Purpose of the invention]

本発明はこのような点に鑑み為されたものであり、その
目的とするところは軽量で強度が高く、車体への取付は
及び排気管やテールカッターとの連結も容易である上に
、車体に取付けた状態における視覚的効果が高いデザイ
ンを自由に得ることができる自動車用マフラーを提供す
るにある。The present invention has been made in view of the above points, and aims to be lightweight, high in strength, easy to attach to the vehicle body, and easy to connect with the exhaust pipe or tail cutter. To provide a muffler for an automobile that allows a user to freely obtain a design with a high visual effect when attached to the muffler.

〔発明の開示〕[Disclosure of the invention]

本発明は筒体とこの筒体の両端関口に取付けられる一対
の端板とからなる外殻をアル三ニウムで形成するととも
に少なくとも排出側の端板をアルミニウムの成形品とし
、この端板にテールカッターの取付用フランジとステー
の取付座若しくはステーを一体に設けたことに特徴を有
するものであり、以下図示の実施例に基いて本発明を詳
述すると第１図及び第２図は一実施例を示す。マフラー
　＋１＋はその外殻が筒体（２）とこの筒体（２）の両
端関口に溶接にて取付けられる一対の端板（３１＋４１
とから構成されている。筒体（２）はアルミニウム板の
板金加工若しくはアルミニウムの押出成形にて形成され
たものであシ、両端板＋３１ｆ４１はアルミニウムの鋳
造によって形成された同一のものである。そして各端板
ｆ３１　＋４）の表面には一体に貫通孔（５）を囲む取
付用フランジ（６）と車体へのステーを介しての取付用
のための取付座（７）とが設けられておシ、更にヂザイ
シ上のアクセントともなる冷却用のフィン（８）が一体
に形成されている。端板（３）には第５図にも示すよう
にエンジン（ｌＯ）側の排気管−が取付けられ、排出側
である端板（４）にはテールカッター（＋５）が取付け
られるわけであるが、これら排気管０４］及びテールカ
ッター０５）の取付けは、端板＋３１　＋４１に一体に
設けられたねじ孔（９）を有する取付用フランジ＋６１
　＋６＋を利用して行なわれる。またこのマフラーｆｌ
）の車体への取付けは取付座（７）にヒス止めするステ
ー（図示せず）を介して行なわれる。第２図に示すよう
にこれら端板＋３１＋４１は、筒体（２）及び内部に納
める有孔管（ｌｉｏとの連結を容易にするための段部Ｑ
７）（ハ）を外周面と貫通孔（６）内面とに備えている
。テールカッター１１５）に放射状ステー（２Ｄを介し
て取付けた円錐形部材＠は排気の拡散用のためのもので
ある。In the present invention, an outer shell consisting of a cylindrical body and a pair of end plates attached to the entrances at both ends of the cylindrical body is made of aluminum, and at least the end plate on the discharge side is a molded product of aluminum, and a tail is attached to this end plate. The feature is that the cutter mounting flange and the stay mounting seat or stay are integrally provided.The present invention will be described below in detail based on the embodiment shown in the drawings. Give an example. Muffler +1+ has an outer shell consisting of a cylindrical body (2) and a pair of end plates (31+41) attached by welding to the entrances at both ends of this cylindrical body (2).
It is composed of. The cylindrical body (2) is formed by sheet metal processing of an aluminum plate or by extrusion molding of aluminum, and both end plates +31f41 are the same and formed by casting aluminum. The surface of each end plate f31+4) is integrally provided with a mounting flange (6) surrounding the through hole (5) and a mounting seat (7) for mounting to the vehicle body via a stay. Cooling fins (8) that also serve as accents on the sill and sill are integrally formed. As shown in Figure 5, the exhaust pipe on the engine (IO) side is attached to the end plate (3), and the tail cutter (+5) is attached to the end plate (4) on the exhaust side. However, these exhaust pipes 04] and tail cutters 05) can be installed using a mounting flange +61 having a screw hole (9) integrally provided on the end plate +31 +41.
This is done using +6+. Also this muffler fl
) is attached to the vehicle body via a stay (not shown) that is fastened to the mounting seat (7). As shown in FIG.
7) (C) is provided on the outer peripheral surface and the inner surface of the through hole (6). The conical member @ attached to the tail cutter 115 via the radial stay (2D) is for diffusing exhaust gas.

第５図に他の実施例を示す。これは筒体（２）をアルミ
ニウムの押出成形品として外面に冷却用フィン彌を一体
に設けたものであるとともに、端板（３１＋４）の筒体
（２）への取付けをヒスによるものとし、このため端板
ｆ３１　＋４１の局部にヒス挿通孔（至）を、筒体（２
）の端面にねじ孔間を設けたも０である。つまシは筒体
（２）に対して端板ｆ３１　＋４１を着脱自在としたも
のであって、筒体（２）内面と有孔管Ｏ＠との間に充填
されるグラスファイバーなどの素材の交換補修を任意に
行なえるようにしたものである。FIG. 5 shows another embodiment. The cylinder body (2) is an extruded aluminum product with cooling fins integrally provided on its outer surface, and the end plate (31+4) is attached to the cylinder body (2) by means of a hiss. For this reason, a Hiss insertion hole (up to) is formed in a local part of the end plate f31 +41, and the cylinder body (2
) is also 0 if the screw holes are provided on the end face. The pick is made by attaching and detaching the end plate f31+41 to the cylindrical body (2), and is made of a material such as glass fiber filled between the inner surface of the cylindrical body (2) and the perforated pipe O@. This allows replacement and repair to be carried out at will.

第４図に更に他の実施例を示す。これは端板ｉ３１　＋
４１を鋳造品としてではなく、アルミニウムの押出成形
品を用いて形成した例を示し、同図（ａ）に示すような
押出成形品−にミーリシジ加工を施して同図（ｂ）に示
すようにフィン（８）、貫通孔（５）、取付用フランジ
（６）及びステーの取付座（７）とを備えた端板（３１
＋４１を形成したものである。ここにおける端板（３）
（４）は排気管０４）やテールカッター０５）の取付け
のためのねし孔（９）を設けるために、取付用フランジ
（６）及び取付座（７）の背面部分を厚肉部間としであ
る。従ってこのものにおいても排気管（１４）やテール
カッター　（＋６）の取付けをヒス止めで行なえるもの
である。FIG. 4 shows yet another embodiment. This is the end plate i31 +
41 is formed not as a cast product but as an extrusion molded product of aluminum.The extrusion molded product as shown in figure (a) is milled and processed to form the shape shown in figure (b). An end plate (31) equipped with a fin (8), a through hole (5), a mounting flange (6), and a stay mounting seat (7).
+41 was formed. End plate here (3)
In (4), the back part of the mounting flange (6) and the mounting seat (7) is placed between the thick parts in order to provide a tapped hole (9) for mounting the exhaust pipe 04) and tail cutter 05). It is. Therefore, the exhaust pipe (14) and tail cutter (+6) can be installed with this device as well without hissing.

第５図は更に他の実施例であって、端板（４）乃至端板
（３）の鋳造に際して取付座（７）に代えてステー図を
一体に形成したものを示す。FIG. 5 shows still another embodiment in which a stay diagram is integrally formed in place of the mounting seat (7) when the end plates (4) to (3) are cast.

以上の実施例の他にも筒体（２）をアルミニウム鋳造品
としても良く、逆に車体に取付けた隙に見えることにな
る排出側の端板（４）のみをアルミニウムの押出成形品
若しくは鋳造品とし、筒体（２）及び端板（３）はアル
ミニウム板の加工にて形成しても良い。更に図示例では
有孔管Ｕ６）が中央を貫通する貫通型のマフラー＋１＋
を示したが、他の形式の消音構造をもつマフラーであっ
ても良いのはもちろんである。冷却効果を高めなくとも
良い場合には端板（３１＋４１においても冷却用フィン
（８）は不要であるが、このフィン（８）は外観上の特
徴となるので外観を良くする点からは少なくとも端板（
４）にはフィン（８）を設けた方が良い。鋳造で端板側
を形成する場合にはフィン（８）の配列の自由度がきわ
めて高いので、好みのヂザイシのものを得ることができ
る。In addition to the above embodiments, the cylindrical body (2) may be made of aluminum casting, and conversely, only the end plate (4) on the discharge side, which is visible through the gap when attached to the vehicle body, may be made of aluminum extrusion or casting. The cylinder body (2) and the end plate (3) may be formed by processing an aluminum plate. Furthermore, in the illustrated example, a through-type muffler +1+ has a perforated pipe U6) passing through the center.
However, it goes without saying that mufflers with other types of noise-absorbing structures may also be used. If there is no need to increase the cooling effect, the cooling fins (8) are not necessary for the end plate (31+41), but since the fins (8) are a feature of the appearance, at least the end plate is not necessary from the point of view of improving the appearance. Board (
4) should be provided with fins (8). When forming the end plate side by casting, there is an extremely high degree of freedom in arranging the fins (8), so it is possible to obtain the desired size.

第６図はこのマフラーｉｌｌを装着した排気系材ド を示し、エンジン（ｌＯ）の工士ソーストマコホールヘ
１すから鋼管よりなる排気管ｔ＋Ｌ触媒コンバータ０３
）、アルミニウム製排気管（１４）を介してマフラー（
１）を接続し、そしてテールカッター０５）をマフラー
ｆｉｌの排出側に取付ける。排気管（１４）における触
媒］ンバータｔｒｉへの接続部外周に設けた冷却フィン
Ｏ鴫は、アル三ニウム製の排気管−を排気管（＋２）や
触媒コンバータα場よ、シ伝わる熱から保護するもので
ある。Figure 6 shows the exhaust system material with this muffler installed, and the exhaust pipe T+L catalytic converter 03, which is made entirely of steel pipes, goes to the engine (lO) engineer source tomako hole.
), muffler (
1) and attach the tail cutter 05) to the exhaust side of the muffler fil. [Catalyst in exhaust pipe (14)] Cooling fins installed on the outer periphery of the connection to the converter tri protect the aluminum exhaust pipe from the heat transmitted from the exhaust pipe (+2) and the catalytic converter α field. It is something to do.

〔発明の効果〕〔Effect of the invention〕

水分やＮＯｘを含んだ排気に対する耐食性が高くて寿命
が長いものであり、しかも少なくとも排出側の端板はア
ルミニウムの成形品としたものであるから強度が高くて
冷却用フィンを設けたシすることの設計自由度が高く、
車体に収付けた際には排出側の端板がテールカッターと
ともに後方から見えるわけであるが、この見える部分の
デザインを好みのものとすることができるわけであり、
更には直接ねし加工を行なえることからテールカッタ、
−や排気管の接続、あるいは車体への取付けを容易に行
なえることができることにもなるとともに溶接跡が目立
ってしまうこともないものである。It has high corrosion resistance against exhaust gas containing moisture and NOx, and has a long life.At least the end plate on the exhaust side is made of molded aluminum, so it is strong and can be fitted with cooling fins. High degree of design freedom,
When installed in the car body, the end plate on the ejection side is visible from the rear along with the tail cutter, and you can customize the design of this visible part to your liking.
In addition, the tail cutter can be used for direct threading.
This also makes it easier to connect the exhaust pipe or the exhaust pipe, or to attach it to the vehicle body, and there are no noticeable welding marks.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本発明一実施例の斜視図、第２図（ａ）（ｂ）
は同上の水平断面図及び縦断面図、第５図は他の実施例
の分解斜視図、第４図（ａ）　（ｂ）は更に他の実施例
の斜視図、第５図は別の実施例の端板の斜視図、第６図
は排気系統の斜視図であり、（ｌ）はマフラー、（２）
は筒体、ｉ３１　（４１は端板、（６）は取付用フラン
ジ、（７）は取付座、μｓ）はステーを示す。 代理人　弁理士　　石　１）長　上 第１図 ７−′ 第２図 （ｂ） ；＋’、４図 （０） 第５図Figure 1 is a perspective view of one embodiment of the present invention, Figures 2 (a) and (b)
5 is a horizontal sectional view and a longitudinal sectional view of the same as above, FIG. 5 is an exploded perspective view of another embodiment, FIGS. 4(a) and (b) are perspective views of still another embodiment, and FIG. 5 is another embodiment FIG. 6 is a perspective view of the end plate of the example, and FIG. 6 is a perspective view of the exhaust system, (l) is the muffler, (2)
is a cylinder, i31 (41 is an end plate, (6) is a mounting flange, (7) is a mounting seat, μs) is a stay. Agent Patent Attorney Ishi 1) Chief Figure 1 7-' Figure 2 (b) ;+', Figure 4 (0) Figure 5

Claims (1)

【特許請求の範囲】[Claims] ＋１１　　筒体とこの筒体の両端関口に取付けられる一
対の端板とからなる外殻を備え、この外殻はアルミニウ
ムで形成されているとともに少なくとも排出側の端板が
アルミニウムの成形品であって、上記端板はテールカッ
ターの取付用フランジとステーの取付座若しくけステー
とが一体に設けられていることを特徴とする自動車用マ
フラー０+11 An outer shell consisting of a cylindrical body and a pair of end plates attached to the entrances at both ends of the cylindrical body, the outer shell being made of aluminum, and at least the end plate on the discharge side being a molded product of aluminum. , an automobile muffler 0 characterized in that the end plate is integrally provided with a tail cutter mounting flange and a stay mounting seat or stake stay.
JP5207283A 1983-03-28 1983-03-28 Muffler of automobile Granted JPS59176416A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5207283A JPS59176416A (en) 1983-03-28 1983-03-28 Muffler of automobile

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5207283A JPS59176416A (en) 1983-03-28 1983-03-28 Muffler of automobile

Publications (2)

Publication Number Publication Date
JPS59176416A true JPS59176416A (en) 1984-10-05
JPH0147604B2 JPH0147604B2 (en) 1989-10-16

Family

ID=12904611

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5207283A Granted JPS59176416A (en) 1983-03-28 1983-03-28 Muffler of automobile

Country Status (1)

Country Link
JP (1) JPS59176416A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56126611A (en) * 1980-03-12 1981-10-03 Hanken Seisakusho:Kk Muffler
JPS5740623U (en) * 1980-08-20 1982-03-04

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5469274A (en) * 1977-11-14 1979-06-04 Matsushita Electronics Corp Electric bulb

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56126611A (en) * 1980-03-12 1981-10-03 Hanken Seisakusho:Kk Muffler
JPS5740623U (en) * 1980-08-20 1982-03-04

Also Published As

Publication number Publication date
JPH0147604B2 (en) 1989-10-16

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