JPH01177405A - Muffler for motor bicycle or the like - Google Patents

Muffler for motor bicycle or the like

Info

Publication number
JPH01177405A
JPH01177405A JP32989187A JP32989187A JPH01177405A JP H01177405 A JPH01177405 A JP H01177405A JP 32989187 A JP32989187 A JP 32989187A JP 32989187 A JP32989187 A JP 32989187A JP H01177405 A JPH01177405 A JP H01177405A
Authority
JP
Japan
Prior art keywords
muffler
connector
sleeve
rear end
outer circumference
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
JP32989187A
Other languages
Japanese (ja)
Other versions
JP2592081B2 (en
Inventor
Kosaku Yamauchi
幸作 山内
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.)
Suzuki Motor Corp
Original Assignee
Suzuki Motor 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 Suzuki Motor Corp filed Critical Suzuki Motor Corp
Priority to JP62329891A priority Critical patent/JP2592081B2/en
Priority to CA000566351A priority patent/CA1300655C/en
Publication of JPH01177405A publication Critical patent/JPH01177405A/en
Application granted granted Critical
Publication of JP2592081B2 publication Critical patent/JP2592081B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Joints With Sleeves (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
  • Exhaust Silencers (AREA)
  • Motorcycle And Bicycle Frame (AREA)

Abstract

PURPOSE:To prevent the temperature increase of a connector for fixing each muffler by tightening, by forming a sleeve in a specific shape so as to have a predetermined gap on the outer circumference surface, on the rear end part of the first muffler, and fitting the second muffler on the outer circumference of this sleeve. CONSTITUTION:On the rear end part of the first muffler 1 connected to the exhaust port of an engine, a sleeve 9 formed by folding back said rear end part outward, is formed integratedly so as to have a predetermined gap toward the outer circumference surface of the first muffler 1. And a joint pipe 3 fixed on the second muffler 2 is fitted on the outer circumference of the sleeve 9. A connector 4 is installed on this fitting part, while the multiple spherical stoppers 10 are buried in the connector 4 at the predetermined intervals in the circumferential direction at the positions for facing the first muffler 1 and the joint pipe 3 respectively. And also, a metallic clamp 6 is fixed by tightening with a screw 7 on the outer circumference surface of the connector 4.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は自動二輪車等のマフラに係り、特に第1マフラ
と第2マフラとをコネクタにより連結する。構造の自動
二輪車等のマフ・うに関する。
DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a muffler for a motorcycle or the like, and particularly relates to a first muffler and a second muffler connected by a connector. Concerning the structure of muffs and mounts for motorcycles, etc.

〔従来の技術〕[Conventional technology]

第4図は従来の自動二輪車等のマフラを示したもので、
自動二輪車等の図示しないエンジンの排気口に接続され
る第1マフラ1の後端部外周には、第2マフラ2の先端
部に固着されたジヨイントバーイブ3が嵌合されており
、この嵌合部分には、シリコンゴム等の可撓性材料から
なるコネクタ4が取付けられている。このコネクタ4の
外周には、上記第1マフラ1および第2マフラ2のジヨ
イントパイプ3部分にそれぞれ対応する位置にステンレ
ス等からなる環状ス・プリング5が嵌合されており、こ
のスプリング5により、上記第1マフラ1および第2マ
フラ2のジヨイントバイブ3を締付は固定するようにな
されている。
Figure 4 shows a conventional muffler for motorcycles, etc.
A joint barb 3 fixed to the tip of the second muffler 2 is fitted to the outer periphery of the rear end of the first muffler 1, which is connected to the exhaust port of an engine (not shown) of a motorcycle or the like. A connector 4 made of a flexible material such as silicone rubber is attached to the fitting portion. An annular spring 5 made of stainless steel or the like is fitted onto the outer periphery of the connector 4 at positions corresponding to the joint pipe 3 portions of the first muffler 1 and second muffler 2, respectively. The joint vibes 3 of the first muffler 1 and the second muffler 2 are tightened and fixed.

また、第5図および第6図は従来の他のマフラを示した
もので、自動二輪車等のエンジンの排気口に接続される
第1マフラ1の後端部外周には、第2マフラ2の先端部
に固着されたジヨイントバイブ3が嵌合されており、こ
の嵌合部分には、金属からなるコネクタとしてのクラン
プ6がねじ7により締付は固定されている。そして、上
記クランプ6の一端部には、上記クランプ6の締付は螢
を規制するストッパ8が一体に固着されている。
In addition, FIGS. 5 and 6 show other conventional mufflers, in which a second muffler 2 is attached to the outer periphery of the rear end of the first muffler 1, which is connected to the exhaust port of an engine such as a motorcycle. A joint vibrator 3 fixed to the distal end is fitted, and a clamp 6 as a connector made of metal is tightened and fixed to this fitting part with a screw 7. A stopper 8 that restricts the tightening of the clamp 6 is integrally fixed to one end of the clamp 6.

なお、従来から上記クランプ6の他に、上記ストッパ8
を設けず、締付けmを規制することなく適当に締付は固
定するようにしたものもある。
In addition to the clamp 6, the stopper 8 has conventionally been used.
There is also one in which the tightening m is not provided and the tightening is fixed appropriately without regulating the tightening m.

実公昭54−31242号公報および実公昭53−12
329号公報参照。
Utility Model Publication No. 54-31242 and Utility Model Number 53-12
See Publication No. 329.

〔発明が解決しようとする問題点) しかし、上記従来の連結構造では、いずれの場合におい
ても、コネクタ4が直接第1マフラ1および第2マフラ
2に接触しているので、エンジンからの排気ガスにより
各マフラおよびコネクタ4が高温になってしまい、コネ
クタ4の耐久性が低下し、排気ガスの洩れやコネクタ4
の破損を招いしてしまうという問題を有している。この
ことは、近年のエンジンの高性能化により排気ガスの温
度が高くなってきていることから、特に問題となってい
る。
[Problems to be Solved by the Invention] However, in the conventional connection structure described above, in any case, since the connector 4 is in direct contact with the first muffler 1 and the second muffler 2, exhaust gas from the engine is This causes each muffler and the connector 4 to become hot, reducing the durability of the connector 4 and causing exhaust gas leakage and connector 4.
There is a problem in that it may lead to damage. This has become a particular problem because the temperature of exhaust gas has become higher due to the higher performance of engines in recent years.

、本発明は上記した点に鑑みてなされたもので、コネク
タ部分の温度を低下させ、耐久性の高い自動二輪車等の
マフラを提供することを目的とするものである。
The present invention has been made in view of the above-mentioned points, and an object of the present invention is to provide a muffler for a motorcycle, etc., which reduces the temperature of the connector portion and has high durability.

C問題点を解決するための手段〕 上記目的を達成するため本発明に係る自動二輪車等のマ
フラは、自動二輪車等のエンジンの排気口に接続される
第1マフラの後端部に第2マフラを嵌合して連結し、こ
の嵌合部をコネクタにより締付は固定してなる自動二輪
車等のマフラにおいて、上記第1マフラの後faFiI
にこの第1マフラの外周面と所定間隙を有するように該
後端部を外側に折返してなるスリーブを形成し、このス
リーブの外周に上記第2マフラを嵌合して構成されてい
る。
Means for Solving Problem C] In order to achieve the above object, a muffler for a motorcycle, etc. according to the present invention includes a second muffler at the rear end of a first muffler connected to an exhaust port of an engine of a motorcycle, etc. In a muffler for a motorcycle, etc., which is formed by fitting and connecting the first muffler, and tightening and fixing the fitting part with a connector, faFiI is connected after the first muffler.
A sleeve is formed by folding the rear end portion outward so as to have a predetermined gap with the outer peripheral surface of the first muffler, and the second muffler is fitted onto the outer periphery of this sleeve.

〔作 用〕[For production]

本発明によれば、第1マフラのスリーブによりコネクタ
取付部分が2重構造となるので、エンジンからの排気ガ
スの熱がコネクタに伝達しにくくなり、しかも、上記第
1マフラとスリーブとの間隙に外気が侵入することによ
りスリーブ部分が冷却され、コネクタの温度の上昇を有
効に防止することができる。その結果、ゴム製等耐熱効
果の低い安価な材料からなるコネクタを用いた場合でも
、耐久性を著しく向上させることができ、コネクタの破
損や排気ガスの漏洩を確実に防止することができるもの
である。
According to the present invention, since the connector mounting portion has a double structure due to the sleeve of the first muffler, heat of exhaust gas from the engine is difficult to be transmitted to the connector, and moreover, the gap between the first muffler and the sleeve is The sleeve portion is cooled by the entry of outside air, and an increase in the temperature of the connector can be effectively prevented. As a result, even when using connectors made of inexpensive materials with low heat resistance, such as rubber, the durability can be significantly improved, and damage to the connector and leakage of exhaust gas can be reliably prevented. be.

〔実施例〕〔Example〕

以下、本発明の実施例を第1図乃至第3図を参照し、第
4図乃至第6図と同一部分には同一符号を付して説明す
る。
Embodiments of the present invention will be described below with reference to FIGS. 1 to 3, with the same reference numerals assigned to the same parts as in FIGS. 4 to 6.

第1図は本発明の一実施例を示したもので、エンジンの
排気口に接続される第1マフラ1の後端部には、この第
1マフラ1の外周面と所定間隙を有するように該後端部
を外側に折返してなるスリーブ9が一体に形成されてお
り、このスリーブ9の外周には、第2マフラ2に固着さ
れたジヨイントバイブ3が嵌合されている。また、上記
嵌合部には、シリコンゴム等からなるコネクタ4が取付
けられており、このコネクタ4には、jf!2図に示す
゛ように、上記第1マフラ1および第2マフラ2のジヨ
イントバイブ3にそれぞれ対応する位置であって、周方
向に所定間隔を有するように複数(本実施例においては
3つ)の球状ストッパ10゜10が埋設されている。こ
のストッパ10は、コネクタ4の材質より剛性の高い材
質であればいずれの材料を用いてもよく、上記ストッパ
10は、コネクタ4の普通時(応力が働いていない状!
111)における厚さより小さく、かつ、コネクタ4締
付は時に締付は力が最適となるような寸法を有している
FIG. 1 shows an embodiment of the present invention, in which the rear end of a first muffler 1 connected to the exhaust port of the engine has a predetermined gap with the outer peripheral surface of the first muffler 1. A sleeve 9 is integrally formed by folding the rear end portion outward, and a joint vibrator 3 fixed to the second muffler 2 is fitted onto the outer periphery of the sleeve 9. Further, a connector 4 made of silicone rubber or the like is attached to the fitting portion, and this connector 4 has a jf! As shown in Fig. 2, the first muffler 1 and the second muffler 2 have a plurality of (three in this embodiment) arranged at predetermined intervals in the circumferential direction at positions corresponding to the joint vibes 3 of the second muffler 2, respectively. ) spherical stopper 10°10 is embedded. This stopper 10 may be made of any material as long as it is more rigid than the material of the connector 4. The stopper 10 is made of any material that is more rigid than the material of the connector 4.
111), and the connector 4 has dimensions such that the tightening force is sometimes optimum.

なお、上記ストッパ10は、第3図に示すように、円柱
形状に形成するようにしてもよい。
Note that the stopper 10 may be formed in a cylindrical shape as shown in FIG. 3.

さらに、上記コネクタ4の第2マフラ2のジヨイントバ
イブ3の先端部に対応する位置の内周面には、第1マフ
ラ1と第2マフラ2のジヨイントバイブ3との嵌合部分
がエンジンの撮動等によりがたつきが生じた場合でも、
上記ジヨイントバイブ3の先端部が接触しないように凹
部11が形成されている。
Further, on the inner circumferential surface of the connector 4 at a position corresponding to the tip of the joint vibrator 3 of the second muffler 2, a fitting portion of the joint vibrator 3 of the first muffler 1 and the second muffler 2 is connected to the engine. Even if rattling occurs due to shooting etc.
A recess 11 is formed so that the tip of the joint vibrator 3 does not come into contact with it.

そして、上記コネクタ4の外周面には、金属製のクラン
プ6がねじ7により締付は固定されている。なお、この
クランプ6は、環状スプリングで代用してもよい。
A metal clamp 6 is fastened to the outer peripheral surface of the connector 4 with a screw 7. Note that this clamp 6 may be replaced with an annular spring.

本実施例においては、第1マフラ1のスリーブ9により
コネクタ4取付部分が2重構造となるので、エンジンか
らの排気ガスの熱がコネクタ4に伝達しにくくなり、し
かも、上記第1マフラ1とスリーブ9との間隙に外気が
侵入することによりスリーブ9部分が冷却され、コネク
タ4の温度の上昇を有効に防止することができる。その
結果、ゴム製のコネクタ4を用いた場合でも、ふっ素ゴ
ム等高価な材料用いる必要がなく、耐熱効果の低 、い
安価な材料で十分に対応することができる。
In this embodiment, since the sleeve 9 of the first muffler 1 has a double structure at the connector 4 attachment part, it is difficult for the heat of the exhaust gas from the engine to be transferred to the connector 4. By intruding outside air into the gap between the sleeve 9 and the sleeve 9, the sleeve 9 portion is cooled, and an increase in the temperature of the connector 4 can be effectively prevented. As a result, even when a rubber connector 4 is used, there is no need to use expensive materials such as fluororubber, and an inexpensive material with low heat resistance can be used.

また、上記クランプ6によりコネクタ4を締付けている
ので、締付は力を大きく得ることができ、シール性を著
しく向上させることができる。しかも、上記ストッパ1
0.10によりクランプ6による締付は力を規制するこ
とができ、かつ、従来のストッパ付きのクランプ6とは
異なり、マフラや、クランプの製造誤差をコネ゛クタ4
のゴム部分で吸収することができるので、コネクタ4の
締付は過ぎによるへたりや損傷等を発生させることなく
均一に締付けを行なうことができる。
Further, since the connector 4 is tightened by the clamp 6, a large tightening force can be obtained, and the sealing performance can be significantly improved. Moreover, the above stopper 1
0.10, the tightening force by the clamp 6 can be regulated, and unlike the conventional clamp 6 with a stopper, manufacturing errors of the muffler and the clamp can be avoided.
Since the rubber portion of the connector 4 can absorb the absorption, the connector 4 can be tightened uniformly without causing any wear or damage due to overexertion.

さらに、上記コネクタ4の内周面に凹部11を形成した
ので、第1マフラ1とジヨイントパイプ3との嵌合部分
においてがたつきが生じた場合でも、上記ジヨイントパ
イプ3の端部がコネクタ4に接触することがなく、コネ
クタ4の損傷を防止することができる。また、上記凹部
11に排気ガスのタール等が溜り、上記第1マフラ1と
ジヨイントパイプ3との間を封止することになるので、
排気ガスの漏洩を確実に防ぐことができ、排気ガスとの
接触によるコネクタ4の劣化を防止することができる。
Furthermore, since the recess 11 is formed on the inner circumferential surface of the connector 4, even if looseness occurs at the fitting portion between the first muffler 1 and the joint pipe 3, the end of the joint pipe 3 There is no contact with the connector 4, and damage to the connector 4 can be prevented. In addition, tar etc. from the exhaust gas accumulates in the recess 11 and seals the space between the first muffler 1 and the joint pipe 3.
Leakage of exhaust gas can be reliably prevented, and deterioration of the connector 4 due to contact with exhaust gas can be prevented.

(発明の効果〕   。(Effect of the invention〕 .

以上述べたように本発明に係る自動二輪車等のマフラは
、第1マフラの後端部にこの第1マフラの外周面と所定
間隙を有するように該後端部を外側に折返してなるスリ
ーブを形成し、このスリーブの外周に上記第2マフラを
嵌合してなり、第1マフラのスリーブによりコネクタ取
付部分が211構造となるようにしたので、エンジンか
らの排気ガスの熱がコネクタに伝達しにくくなり、しか
も、上記第1マフラとスリーブとの間隙に外気が侵入す
ることによりスリーブ部分が冷却され、コネクタの温度
の上昇を有効に防止することができる。
As described above, the muffler for a motorcycle or the like according to the present invention includes a sleeve formed by folding the rear end of the first muffler outward so as to have a predetermined gap with the outer peripheral surface of the first muffler. The second muffler is fitted around the outer periphery of this sleeve, and the sleeve of the first muffler forms the connector mounting part with a 211 structure, so that the heat of exhaust gas from the engine is not transferred to the connector. In addition, the sleeve portion is cooled by the intrusion of outside air into the gap between the first muffler and the sleeve, and an increase in the temperature of the connector can be effectively prevented.

その結果、コネクタの耐久性を著しく向上させることが
でき、コネクタの破損や排気ガスの漏洩を確実に防止す
ることができ、しかも、安価に製造することができる等
の効果を奏する。
As a result, the durability of the connector can be significantly improved, breakage of the connector and leakage of exhaust gas can be reliably prevented, and the connector can be manufactured at low cost.

【図面の簡単な説明】 第1図乃至第3図は本発明の一実施例を示したもので、
第1図はマフラ接続部分の縦断面図、第2図は第1図の
コネクタのA−A線における断面図、第3図はコネクタ
の他の実施例を示す一部の断面図、第4図は従来のマフ
ラ接続部分を示す上半分を断面とした正面図、第5図は
従来の他のマフラの接続部分を示す上半分を断面とした
正面図、第、6図は第5図の縦断面図で゛ある。 1・・・第1マフラ、2・・・第2マフラ、3・・・ジ
ヨイントパイプ、4・・・コネクタ、6・・・クランプ
、9・・・スリーブ、10・・・ストッパ、11・・・
凹部。
[Brief Description of the Drawings] Figures 1 to 3 show an embodiment of the present invention.
Fig. 1 is a longitudinal sectional view of the muffler connection part, Fig. 2 is a sectional view taken along the line A-A of the connector in Fig. 1, Fig. 3 is a partial sectional view showing another embodiment of the connector, and Fig. 4 The figure is a front view with the upper half in cross section showing the connection part of a conventional muffler, Figure 5 is a front view with the upper half in cross section showing the connection part of another conventional muffler, and Figures 6 and 6 are the same as in Figure 5. This is a vertical cross-sectional view. DESCRIPTION OF SYMBOLS 1... 1st muffler, 2... 2nd muffler, 3... joint pipe, 4... connector, 6... clamp, 9... sleeve, 10... stopper, 11...・・・
recess.

Claims (1)

【特許請求の範囲】[Claims] 自動二輪車等のエンジンの排気口に接続される第1マフ
ラの後端部に第2マフラを嵌合して連結し、この嵌合部
をコネクタにより締付け固定してなる自動二輪車等のマ
フラにおいて、上記第1マフラの後端部にこの第1マフ
ラの外周面と所定間隙を有するように該後端部を外側に
折返してなるスリーブを形成し、このスリーブの外周に
上記第2マフラを嵌合したことを特徴とする自動二輪車
等のマフラ。
In a muffler for a motorcycle, etc., in which a second muffler is fitted and connected to the rear end of a first muffler connected to an exhaust port of an engine of a motorcycle, etc., and this fitting part is tightened and fixed by a connector, A sleeve is formed at the rear end of the first muffler by folding the rear end outward so as to have a predetermined gap with the outer peripheral surface of the first muffler, and the second muffler is fitted onto the outer periphery of the sleeve. A muffler for motorcycles, etc., which is characterized by:
JP62329891A 1987-12-28 1987-12-28 Mufflers for motorcycles, etc. Expired - Lifetime JP2592081B2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP62329891A JP2592081B2 (en) 1987-12-28 1987-12-28 Mufflers for motorcycles, etc.
CA000566351A CA1300655C (en) 1987-12-28 1988-05-10 Tube fixing structure of a bicycle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62329891A JP2592081B2 (en) 1987-12-28 1987-12-28 Mufflers for motorcycles, etc.

Publications (2)

Publication Number Publication Date
JPH01177405A true JPH01177405A (en) 1989-07-13
JP2592081B2 JP2592081B2 (en) 1997-03-19

Family

ID=18226410

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62329891A Expired - Lifetime JP2592081B2 (en) 1987-12-28 1987-12-28 Mufflers for motorcycles, etc.

Country Status (2)

Country Link
JP (1) JP2592081B2 (en)
CA (1) CA1300655C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6206434B1 (en) 1998-01-24 2001-03-27 Rasmussen Gmbh Clampable pipe coupling

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5592019U (en) * 1978-12-21 1980-06-25
JPS57205485U (en) * 1981-06-25 1982-12-27

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5592019U (en) * 1978-12-21 1980-06-25
JPS57205485U (en) * 1981-06-25 1982-12-27

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6206434B1 (en) 1998-01-24 2001-03-27 Rasmussen Gmbh Clampable pipe coupling

Also Published As

Publication number Publication date
CA1300655C (en) 1992-05-12
JP2592081B2 (en) 1997-03-19

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