JPH0238015Y2 - - Google Patents
Info
- Publication number
- JPH0238015Y2 JPH0238015Y2 JP1985038549U JP3854985U JPH0238015Y2 JP H0238015 Y2 JPH0238015 Y2 JP H0238015Y2 JP 1985038549 U JP1985038549 U JP 1985038549U JP 3854985 U JP3854985 U JP 3854985U JP H0238015 Y2 JPH0238015 Y2 JP H0238015Y2
- Authority
- JP
- Japan
- Prior art keywords
- cylinders
- outer cylinders
- divided
- edge pieces
- present
- 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.)
- Expired
Links
- 238000000034 method Methods 0.000 claims description 3
- 238000002485 combustion reaction Methods 0.000 claims description 2
- 238000004826 seaming Methods 0.000 claims 1
- 238000003466 welding Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000030279 gene silencing Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Exhaust Silencers (AREA)
Description
【考案の詳細な説明】
イ 考案の目的
イ−１ 産業上の利用分野
本考案は内燃機関用クラムシエル型マフラに関
する。[Detailed Description of the Invention] A. Purpose of the Invention A-1. Field of Industrial Application The present invention relates to a clamshell muffler for internal combustion engines.
イ−２ 従来技術
外殻を内外二重筒により角型に形成し、該内外
筒を夫々上下に２分割し、夫々の両側縁片を連結
して形成されるクラムシエル型マフラにおいて
は、従来、前記両側縁片の連結手段として、第２
図に示す如く、内外筒１，２の夫々の両側縁片１
ａ，２ａを重合して該重合部をシーム熔接或いは
スポツト熔接して連結している。A-2 Prior Art Conventionally, in a clamshell type muffler in which the outer shell is formed into a rectangular shape with an inner and outer double cylinder, the inner and outer cylinders are divided into upper and lower parts, and the respective side edge pieces are connected, As a means for connecting the side edge pieces, a second
As shown in the figure, each side edge piece 1 of the inner and outer cylinders 1 and 2
a and 2a are polymerized, and the overlapping portions are connected by seam welding or spot welding.
イ−３ 本考案が解決しようとする問題点
前記従来のシーム熔接或いはスポツト熔接によ
る連結手段においては、熔接作業による製作コス
トが高くなると共に気密性が低い問題がある。A-3 Problems to be Solved by the Present Invention In the conventional connection means using seam welding or spot welding, there are problems in that the production cost due to the welding operation is high and the airtightness is low.
そこで本考案は前記両側縁片を４枚重合の巻き
締め加工により連結するようにして製作コストの
低減及び気密性の向上を図ることを目的とするも
のである。 Therefore, the present invention aims to reduce the manufacturing cost and improve the airtightness by connecting the two side edge pieces by rolling and tightening the four pieces together.
ロ 考案の構成
ロ−１ 問題点を解決するための手段
本考案は前記の問題点を解決するために、外殻
を内外二重筒により角型に形成し内筒と外筒の間
に緩衝材を充てんすると共に該内外筒を夫々上下
に２分割し、夫々の両側縁片の各４枚を重合して
巻き締め加工により結合したことを特徴とするも
のである。B. Structure of the invention B-1. Means for solving the problems In order to solve the above-mentioned problems, the present invention forms the outer shell into a rectangular shape with double inner and outer cylinders, and creates a buffer between the inner and outer cylinders. It is characterized in that the inner and outer cylinders are filled with material and divided into upper and lower halves, and the four edge pieces on each side are overlapped and joined together by winding.
ロ−２ 実施例
第１図に示す本考案の実施例において、マフラ
本体の外殻は内外二重筒１，２により角型に形成
されていると共に該内外筒１，２間に間隙を設け
て該間隙内に緩衝材３が充てんされている。該内
外筒１，２は夫々上下に２分割されていると共に
夫々の両側縁片１ａ，２ａが重合され、該重合部
が巻き締め加工により結合されている。尚、排気
通路を形成する内筒１内には周知のような拡張室
等の消音機構を有するが、これは省略してある。RO-2 Embodiment In the embodiment of the present invention shown in FIG. 1, the outer shell of the muffler body is formed into a rectangular shape with inner and outer double cylinders 1 and 2, and a gap is provided between the inner and outer cylinders 1 and 2. A cushioning material 3 is filled in the gap. The inner and outer cylinders 1 and 2 are divided into upper and lower halves, respectively, and the respective side edge pieces 1a and 2a are overlapped, and the overlapped parts are joined by a tightening process. It should be noted that the inner cylinder 1 forming the exhaust passage has a well-known noise reduction mechanism such as an expansion chamber, but this is omitted.
ハ 考案の効果
以上のように本考案は、２分割された内外筒の
夫々の両側縁片の結合を４枚重合の巻き締め加工
により行なうようにしたので、該結合が前記従来
のシーム熔接やスポツト熔接に比べて安価になる
上に気密性も向上する特長がある。C. Effects of the invention As described above, in the present invention, the two side edge pieces of the inner and outer cylinders are joined by a 4-ply seam tightening process. It has the advantage of being less expensive than spot welding and improving airtightness.
第１図は本考案の実施例を示す正断面図、第２
図は従来構造を示す正断面図で、夫々内部の消音
機構は省略してある。
１……内筒、２……外筒、１ａ，２ａ……側端
縁片、３……緩衝材。
Fig. 1 is a front sectional view showing an embodiment of the present invention, Fig. 2 is a front sectional view showing an embodiment of the present invention;
The figure is a front sectional view showing a conventional structure, and the internal silencing mechanism is omitted. 1... Inner cylinder, 2... Outer cylinder, 1a, 2a... Side edge pieces, 3... Cushioning material.
Claims (1)
筒１と外筒２の間に緩衝材３を充てんすると共に
該内外筒１，２を夫々上下に２分割し、夫々の両
側縁片１ａ，２ａの各４枚を重合して巻き締め加
工により結合したことを特徴とする内燃機関用ク
ラムシエル型マフラ。 The outer shell is formed into a rectangular shape with inner and outer double cylinders 1 and 2, and a cushioning material 3 is filled between the inner and outer cylinders 1 and 2, and the inner and outer cylinders 1 and 2 are divided into upper and lower halves, respectively, and the inner and outer cylinders are divided into two parts. A clamshell type muffler for an internal combustion engine, characterized in that four edge pieces 1a and 2a each are overlapped and joined together by a seaming process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985038549U JPH0238015Y2 (en) | 1985-03-18 | 1985-03-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985038549U JPH0238015Y2 (en) | 1985-03-18 | 1985-03-18 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61155625U JPS61155625U (en) | 1986-09-26 |
| JPH0238015Y2 true JPH0238015Y2 (en) | 1990-10-15 |
Family
ID=30545659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985038549U Expired JPH0238015Y2 (en) | 1985-03-18 | 1985-03-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0238015Y2 (en) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5822966Y2 (en) * | 1978-02-14 | 1983-05-17 | カルソニックカンセイ株式会社 | Silencer and exhaust purification device |
| JPS5994116U (en) * | 1982-12-14 | 1984-06-26 | 川崎重工業株式会社 | Internal combustion engine exhaust muffler |
-
1985
- 1985-03-18 JP JP1985038549U patent/JPH0238015Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61155625U (en) | 1986-09-26 |
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