JPH09203487A - Exhaust pipe joint - Google Patents

Exhaust pipe joint

Info

Publication number
JPH09203487A
JPH09203487A JP8010712A JP1071296A JPH09203487A JP H09203487 A JPH09203487 A JP H09203487A JP 8010712 A JP8010712 A JP 8010712A JP 1071296 A JP1071296 A JP 1071296A JP H09203487 A JPH09203487 A JP H09203487A
Authority
JP
Japan
Prior art keywords
bellows
flange
spherical surface
force
exhaust pipe
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.)
Withdrawn
Application number
JP8010712A
Other languages
Japanese (ja)
Inventor
Susumu Kuroyanagi
進 黒柳
Toru Uematsu
徹 植松
Yasushi Kukuminato
康 久々湊
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.)
Sango Co Ltd
Original Assignee
Sango Co Ltd
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 Sango Co Ltd filed Critical Sango Co Ltd
Priority to JP8010712A priority Critical patent/JPH09203487A/en
Publication of JPH09203487A publication Critical patent/JPH09203487A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L27/00—Adjustable joints, Joints allowing movement
    • F16L27/12—Adjustable joints, Joints allowing movement allowing substantial longitudinal adjustment or movement
    • F16L27/127—Adjustable joints, Joints allowing movement allowing substantial longitudinal adjustment or movement with means for locking the longitudinal adjustment or movement in the final mounted position
    • F16L27/1275—Adjustable joints, Joints allowing movement allowing substantial longitudinal adjustment or movement with means for locking the longitudinal adjustment or movement in the final mounted position by means of at least an external threaded bolt
    • F16L27/12751—Adjustable joints, Joints allowing movement allowing substantial longitudinal adjustment or movement with means for locking the longitudinal adjustment or movement in the final mounted position by means of at least an external threaded bolt the threaded bolt extending longitudinally

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Exhaust Silencers (AREA)
  • Joints Allowing Movement (AREA)

Abstract

PROBLEM TO BE SOLVED: To obtain good damping force in the case of curvature of an exhaust pipe by arranging a second bellows cover having a spherical surface part which is concentrically with a first bellows cover, fixing one end of the second bellows cover to an exhaust pipe side, and energizing the second bellow cover in a flange direction. SOLUTION: At the time of curvature, sliding resistance bodies 21, 21a fixed to spherical surface parts 16, 16a and spherical surface parts 14, 14a are moved and slid relatively around O1 . At this time, since the sliding resistance bodies 21, 21a are slide in a pressure contact condition with outer surfaces of the spherical surface parts 14, 14a by energizing forces of elastic bodies 30, 30a, frictional force by sliding is acted as resistance force of curvature and damping force so as to improve damping performance of curvature force. In the case where the sliding resistance bodies 21, 21a are abraded by secular change and the thickness thereof is thinned, a second bellow cover 15 is moved to a second flange 6 side by energizing force of the elastic bodies 30, 30a for its abrasion degree, abutment of the sliding resistance bodies 21, 21a and the spherical surface parts 14, 14a is ensured. It is thus possible to obtain stable sliding resistance for a long period.

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】本発明は排気管継手に関する
もので、より詳しくは、内燃機関の排気管相互を気密か
つ全周方向に屈曲可能に連結する排気管継手に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an exhaust pipe joint, and more particularly, to an exhaust pipe joint for connecting exhaust pipes of an internal combustion engine to each other so as to be airtight and bendable in the entire circumferential direction.

【０００２】[0002]

【従来の技術】従来、管の継手として、管相互をベロー
ズで連結し、かつ該ベローズの外部において、一方の管
側に固設した球面状の外管と他方の管側に固設した球面
状の内管とを、一方の外管を他方の内管へ付勢すること
なく単に重合配置したものが実公昭４４−２１７３５号
公報で知られている。これを第１の従来の技術とする。2. Description of the Related Art Conventionally, as a pipe joint, pipes are connected to each other by a bellows, and outside the bellows, a spherical outer pipe fixed to one pipe side and a spherical outer pipe fixed to the other pipe side. It is known from Japanese Utility Model Publication No. 44-21735 that a cylindrical inner tube is simply superposed in such a manner that one outer tube is not biased to the other inner tube. This is referred to as a first conventional technique.

【０００３】また、図８に示すような継手が特開平７−
２５９５５２号公報に開示されている。これを第２の従
来の技術とする。この図８に示す継手の概略を説明す
る。Further, a joint as shown in FIG.
It is disclosed in Japanese Patent No. 259552. This is the second conventional technique. The outline of the joint shown in FIG. 8 will be described.

【０００４】１０１は一方の排気管、１０２は他方の排
気管で、これらの接続端間はベローズ１０３で連結され
ている。１０４は一方の排気管１０１に固着した第１フ
ランジ、１０５は他方の排気管１０２に固着した第２フ
ランジである。１０６は連結軸で、その一端は第２フラ
ンジ１０５に係止され他端側は第１フランジ１０４を貫
通してその端部にばね座１０７が備えられている。Reference numeral 101 denotes one exhaust pipe, 102 denotes the other exhaust pipe, and the connecting ends thereof are connected by a bellows 103. Reference numeral 104 is a first flange fixed to one exhaust pipe 101, and 105 is a second flange fixed to the other exhaust pipe 102. Reference numeral 106 denotes a connecting shaft, one end of which is locked to the second flange 105 and the other end thereof penetrates the first flange 104, and a spring seat 107 is provided at the end thereof.

【０００５】上記第１フランジ１０４と第２フランジ１
０５間には第１コイルスプリング１０８が介在されてい
るとともに該第１コイルスプリング１０８の内側に位置
してワイヤメッシュからなる第１弾性円筒部材１０９が
介在されている。The first flange 104 and the second flange 1
A first coil spring 108 is interposed between 05, and a first elastic cylindrical member 109 made of a wire mesh is interposed inside the first coil spring 108.

【０００６】また、上記第１フランジ１０４とばね座１
０７間には第２コイルスプリング１１０が介在されてい
るとともに該第２コイルスプリング１１０の内側に位置
してワイヤメッシュからなる第２弾性円筒部材１１１が
介在されている。Further, the first flange 104 and the spring seat 1
A second coil spring 110 is interposed between 07, and a second elastic cylindrical member 111 made of a wire mesh is located inside the second coil spring 110.

【０００７】そして、両排気管１０１，１０２の屈曲に
対する抗力（反力）発生手段として上記両コイルスプリ
ング１０８，１１０が作用し、減衰力発生手段としてワ
イヤメッシュからなる両弾性円筒部材１０９，１１１が
作用するようになっている。The coil springs 108 and 110 act as a reaction force (reaction force) generating means for the bending of the exhaust pipes 101 and 102, and the elastic cylindrical members 109 and 111 made of wire mesh act as a damping force generating means. It is supposed to work.

【０００８】尚、図中、１１２はインナパイプで、その
一端が一方の排気管１０１に固着されている。１１３は
アウタパイプで、その一端が第１フランジ１０４に固着
されている。In the figure, 112 is an inner pipe, one end of which is fixed to one exhaust pipe 101. An outer pipe 113 has one end fixed to the first flange 104.

【０００９】[0009]

【発明が解決しようとする課題】上記第１の従来の技術
においては、両管の振動による屈曲に伴って球面状の内
外管を円滑に摺動させるためには、その内外管の球面部
をかなり高い精度で形成しなければならない。そのため
円滑な摺動（屈曲）が望めないか或いは加工の困難性を
要する問題がある。更に、両球面部相互の接触圧が不安
定で、安定した減衰力が得られない問題がある。In the first prior art described above, in order to smoothly slide the spherical inner and outer pipes due to the bending due to the vibration of both pipes, the spherical portion of the inner and outer pipes is It must be formed with a fairly high degree of accuracy. Therefore, there is a problem that smooth sliding (bending) cannot be expected or processing is difficult. Furthermore, there is a problem that the contact pressure between the spherical surfaces is unstable and a stable damping force cannot be obtained.

【００１０】また、上記第２の従来の技術においては、
減衰力発生手段として、ワイヤメッシュからなる弾性円
筒部材１０９，１１１をその軸心方向を両排気管１０
１，１０２の伸縮方向に配して構成していることから、
このワイヤメッシュに対して高温下で繰り返し圧縮力が
作用し、このワイヤメッシュが経年劣化（へたり）し易
い。そのため、経年劣化に伴う振動減衰能力の低下は避
けられず、初期性能を維持できないおそれがある。Further, in the above-mentioned second conventional technique,
As the damping force generating means, elastic cylindrical members 109 and 111 made of wire mesh are provided in both exhaust pipes 10 in the axial direction.
Since it is arranged in the expansion and contraction direction of 1,102,
The wire mesh is repeatedly subjected to compressive force at high temperatures, and the wire mesh is prone to deterioration over time. Therefore, a decrease in the vibration damping capacity due to deterioration over time cannot be avoided, and the initial performance may not be maintained.

【００１１】[0011]

【課題を解決するための手段】上記の課題を解決するた
めに、請求項１記載の第１の発明は、フランジ（６）に
ベローズ（８）の一端を接続し、該ベローズ（８）の他
端に排気管（５）を接続し、ベローズ（８）の外部に、
ベローズ（８）側に中心（Ｏ1 ）をもつ球面部（１４）
を有する第１のベローズカバー（１２）を配置するとと
もに該第１のベローズカバー（１２）の一端を上記フラ
ンジ（６）に固着し、上記第１のベローズカバー（１
２）の外部には、該第１のベローズカバー（１２）と同
心の球面部（１６）を有する第２のベローズカバー（１
５）を配置するとともにその一端を上記排気管（５）側
に固着し、上記第２のベローズカバー（１５）をフラン
ジ（６）方向へ付勢する付勢手段を設けたことを特徴と
するものである。In order to solve the above-mentioned problems, the first invention according to claim 1 is to connect one end of a bellows (8) to a flange (6) and to connect the bellows (8) to the flange (6). Connect the exhaust pipe (5) to the other end, outside the bellows (8),
Spherical part (14) having the center (O 1 ) on the bellows (8) side
A first bellows cover (12) having the above is arranged and one end of the first bellows cover (12) is fixed to the flange (6).
A second bellows cover (1) having a spherical portion (16) concentric with the first bellows cover (12) is provided outside the second bellows cover (1).
5) is arranged and one end thereof is fixed to the exhaust pipe (5) side, and a biasing means for biasing the second bellows cover (15) toward the flange (6) is provided. It is a thing.

【００１２】本発明においては、両排気管（１）（５）
の継手部が屈曲した場合、両ベローズカバー（１２）
（１５）がその球面中心（Ｏ1 ）を中心として同心回転
し、その屈曲が良好に行われる。In the present invention, both exhaust pipes (1) (5)
When the joint part of is bent, both bellows covers (12)
(15) rotates concentrically around the center of the spherical surface (O 1 ), and its bending is performed well.

【００１３】また、屈曲時には付勢手段（３０）による
付勢力によって屈曲力の減衰が促進されるとともに屈曲
力の抗力（反力）としても作用する。更に、両球面部
（１４）（１６）相互が付勢手段（３０）の付勢力によ
って常時安定して接触し、その接触による摺動抵抗力が
屈曲に対する減衰力として作用する。したがって長期に
亘って安定した所定の減衰力が得られる。Further, during bending, the urging force of the urging means (30) accelerates the damping of the bending force and also acts as a reaction force (reaction force) of the bending force. Furthermore, the spherical surfaces (14) and (16) are always in stable contact with each other by the biasing force of the biasing means (30), and the sliding resistance force due to the contact acts as a damping force for bending. Therefore, a stable predetermined damping force can be obtained over a long period of time.

【００１４】請求項２記載の第２の発明は、上記両球面
部（１４）（１６）間に摺動抵抗体（２１）を介在した
ものである。本発明においては、上記の摺動抵抗力が大
きくなり、上記の減衰力が一層向上する。A second aspect of the present invention is that a sliding resistor (21) is interposed between the spherical surfaces (14) and (16). In the present invention, the sliding resistance is increased and the damping force is further improved.

【００１５】請求項３記載の第３の発明は、上記摺動抵
抗体（２１）を、第２のベローズカバー（１５）がフラ
ンジ（６）方向へ付勢されることにより第１のベローズ
カバー（１２）における球面部（１４）の外面に押圧さ
れる部分に配設したものである。According to a third aspect of the present invention, the second bellows cover (15) biases the sliding resistor (21) in the direction of the flange (6). It is arranged in a portion of (12) that is pressed against the outer surface of the spherical surface portion (14).

【００１６】本発明においては、経年により摺動抵抗体
（２１）が摩耗して薄肉になった場合に、付勢手段（３
０）によって摩耗分その摺動抵抗体（２１）が第１のベ
ローズカバー（１２）の外面へ移動する。そのため、長
期に亘って摺動抵抗体（２１）と第１のベローズカバー
（１２）との設定した初期摺動抵抗力が確保され、長期
に亘って安定した減衰力が維持される。また、摺動抵抗
体（２１）を存在させることにより、両球面部（１４）
（１６）の球面精度が粗くてもこれらの摺動が支障なく
行える。そのため、該球面部（１４）（１６）の工作及
び組付けが容易になる。 請求項４記載の第４の発明
は、上記摺動抵抗体（２１）をカーボン材で形成したも
のである。According to the present invention, the urging means (3) is used when the sliding resistor (21) becomes thin due to wear over time.
0) causes the sliding resistor (21) to move to the outer surface of the first bellows cover (12) by the amount of wear. Therefore, the initial sliding resistance force set by the sliding resistor (21) and the first bellows cover (12) is secured for a long period of time, and a stable damping force is maintained for a long period of time. Further, the presence of the sliding resistor (21) allows both spherical surface portions (14)
Even if the spherical accuracy of (16) is rough, these sliding can be performed without any trouble. Therefore, the spherical parts (14) and (16) can be easily machined and assembled. According to a fourth aspect of the present invention, the sliding resistor (21) is made of a carbon material.

【００１７】このようにカーボン材で形成すると、これ
が経年によりへたらず、長期に亘って上記の作用、効果
を発揮する。また、カーボン材として、カーボンシート
を金網で補強したものを用いると、より効果的である。
請求項５記載の第５の発明は、１個のフランジ（６）に
排気管とベローズとからなる排気系を複数並設し、上記
複数のベローズの外部に上記の両ベローズカバーを配設
したものである。When the carbon material is formed in this way, it does not deteriorate over time and exhibits the above-mentioned actions and effects over a long period of time. Further, it is more effective to use a carbon sheet reinforced with a wire mesh as the carbon material.
According to a fifth aspect of the present invention, a plurality of exhaust systems including exhaust pipes and bellows are arranged in parallel on one flange (6), and both bellows covers are arranged outside the plurality of bellows. It is a thing.

【００１８】本発明においては、複数の排気系を、上記
の作用、効果を発揮して１つのフランジ（６）で共通し
て支承できるため、コンパクトなデュアル継手が実現さ
れる。In the present invention, a plurality of exhaust systems can be commonly supported by one flange (6) with the above-mentioned actions and effects, so that a compact dual joint is realized.

【００１９】[0019]

【発明の実施の形態】次に図１乃至図７に示す実施例に
基づいて本発明の実施の形態について説明する。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will now be described based on the embodiments shown in FIGS.

【００２０】図１乃至図４は複数の排気系の管を接続す
るデュアル継手に用いた第１実施例である。この第１実
施例において、１は図示しないエンジンのエキゾースト
マニホールド等に接続された上流側の第１の排気管であ
る。該第１の排気管１は図のように２本並設されてお
り、一方の管を１とし他方の管を１ａとして示す。1 to 4 show a first embodiment used in a dual joint for connecting a plurality of exhaust system pipes. In the first embodiment, 1 is an upstream first exhaust pipe connected to an exhaust manifold of an engine (not shown). Two first exhaust pipes 1 are arranged side by side as shown in the figure, and one pipe is shown as 1 and the other pipe is shown as 1a.

【００２１】２は第１のフランジで、上記の両管１，１
ａの並設方向に長い横長形状に形成され、該第１のフラ
ンジ２に形成された２個の取付穴３，３ａに上記２本の
管１，１ａを挿通し、該両管１，１ａと第１のフランジ
２とが溶接４にて固着されている。Reference numeral 2 denotes a first flange, which is the above-mentioned both pipes 1 and 1.
The two pipes 1 and 1a are inserted into the two mounting holes 3 and 3a formed in the first flange 2 so as to have a horizontally long shape which is long in the juxtaposed direction of a, and the both pipes 1 and 1a are inserted. And the first flange 2 are fixed to each other by welding 4.

【００２２】５は図示しない排気ガスコンバータやマフ
ラ等に接続された下流側の第２の排気管である。該第２
の排気管５は図のように２本並設されており、一方の管
を５とし他方の管を５ａとして示す。Reference numeral 5 is a second exhaust pipe on the downstream side connected to an exhaust gas converter, a muffler, etc. not shown. The second
The two exhaust pipes 5 are arranged side by side as shown in the figure, and one pipe is shown as 5 and the other pipe is shown as 5a.

【００２３】６は第２のフランジで上記第１のフランジ
２と同様の横長形状に形成されている。該第２のフラン
ジ６には、上記第１のフランジ２における取付穴３，３
ａと同心でかつ若干大径の取付穴７，７ａが形成されて
いる。Reference numeral 6 denotes a second flange, which is formed in the same oblong shape as the first flange 2. The second flange 6 has mounting holes 3, 3 in the first flange 2 described above.
Mounting holes 7, 7a which are concentric with a and have a slightly larger diameter are formed.

【００２４】８は薄板の金属板からなるベローズで、そ
の軸方向に所望の山数の屈曲部が形成されている。該ベ
ローズ８の一端は上記第２の排気管５の接続端部外面に
嵌合して溶接９で第２の排気管５に固着され、他端は上
記第２のフランジ６の取付穴７に嵌合して溶接１０で第
２のフランジ６に固着されている。Reference numeral 8 is a bellows which is made of a thin metal plate and has a desired number of bent portions formed in its axial direction. One end of the bellows 8 is fitted to the outer surface of the connection end portion of the second exhaust pipe 5 and is fixed to the second exhaust pipe 5 by welding 9, and the other end is attached to the mounting hole 7 of the second flange 6. It is fitted and fixed to the second flange 6 by welding 10.

【００２５】１１は排気導入パイプで、上記ベローズ８
内に配設され、その基端を、上記第２のフランジ６にお
ける取付穴７に嵌合したベローズ８の端部の内面に重合
して上記溶接１０により固定されている。尚、該排気導
入パイプ１１の外径はベローズ８の作用に支障とならな
いような小径に形成され、また、該排気導入パイプ１１
の他端（下流側）は自由端になっている。Reference numeral 11 denotes an exhaust introduction pipe, which is the bellows 8 described above.
The inner end of the bellows 8 is fixed to the inner surface of the end portion of the bellows 8 fitted in the mounting hole 7 of the second flange 6 by the welding 10. The outer diameter of the exhaust introducing pipe 11 is formed so as not to interfere with the operation of the bellows 8.
The other end (downstream side) is a free end.

【００２６】上記のベローズ８及び排気導入パイプ１１
は他方の管１ａ側にも同様に設けられており、夫々８
ａ，１１ａとして示す。１２は金属薄板からなる第１の
ベローズカバーで、上記一方のベローズ８の外周に若干
の隙間を有して沿う球面に形成され、その基部１３が上
記第２のフランジ６側に固着されている。また、該第１
のベローズカバー１２は、図１の符号Ｏ 1 を中心とする
球面で、かつベローズ８の略中心（その部分を鎖線１２
Ａとして示す）から側方、すなわち上記第２のフランジ
６の長手方向の側方への半球で、更に上記中心Ｏ1 から
上記第２の排気管５側へ若干延出した（その端部を１２
Ｂとして示す）略１／４強の球面部１２を有する。The bellows 8 and the exhaust introduction pipe 11 described above
Are similarly provided on the other pipe 1a side, and each is provided with 8
It is shown as a, 11a. 12 is a first metal thin plate
The bellows cover slightly covers the outer circumference of the one bellows 8 above.
It is formed on a spherical surface that has a gap of
It is fixed to the second flange 6 side. Also, the first
The bellows cover 12 of FIG. 1Around
It is a spherical surface and approximately the center of the bellows 8
(Shown as A) from the side, that is, the second flange described above.
6 is a hemisphere to the side in the longitudinal direction of 6, and the center O1From
It slightly extended to the side of the second exhaust pipe 5 (the end portion of which is 12
It has a spherical portion 12 of approximately 1/4 strength (shown as B).

【００２７】また、他方のベローズ８ａの外周部にも上
記第１のベローズカバー１２と同様な第１のベローズカ
バーが上記と同様に固設されており、これを１２ａとし
て示す。また、上記と同一部分には上記の符号にａを付
して示す。そして、上記両球面部１２，１２ａの両端は
板１２ｂで連結されている。Further, a first bellows cover similar to the first bellows cover 12 is fixed to the outer peripheral portion of the other bellows 8a in the same manner as described above, and this is shown as 12a. Further, the same portions as those described above are indicated by adding a to the above reference numerals. Both ends of the spherical surfaces 12, 12a are connected by a plate 12b.

【００２８】１５は金属薄板からなる第２のベローズカ
バーで、上記一方の第１のベローズカバー１２と他方の
第１のベローズカバー１２ａの外周に若干の隙間Ｄを有
して沿う球面部１６，１６ａと、該両球面部１６，１６
ａの表裏端間を連結した表裏板１７とで形成されてい
る。上記両球面部１６，１６ａは、上記Ｏ1 を中心とす
る球面に形成され、上記第１のベローズカバー１２，１
２ａと同心的に形成されている。また、基端側には壁板
１８が一体形成されており、該壁板１８には接続管部１
９，１９ａが折曲形成されている。そして、該両接続管
部１９，１９ａを上記第２の排気管５，５ａに嵌着した
両ベローズ８，８ａの端部外面に嵌合して溶接９により
固着して備えられている。Reference numeral 15 is a second bellows cover made of a thin metal plate, which is a spherical surface portion 16 having a slight gap D on the outer circumference of the one first bellows cover 12 and the other first bellows cover 12a. 16a and the spherical parts 16, 16
and a front and back plate 17 in which the front and back ends of a are connected. Both of the spherical surface portions 16 and 16a are formed in a spherical surface centered on O 1 and have the first bellows covers 12 and 1 a.
It is formed concentrically with 2a. Further, a wall plate 18 is integrally formed on the base end side, and the wall plate 18 has a connection pipe portion 1
Bends 9 and 19a are formed. The connecting pipe portions 19 and 19a are fitted to the outer surfaces of the end portions of the bellows 8 and 8a fitted to the second exhaust pipes 5 and 5a and fixed by welding 9.

【００２９】２０，２０ａは上記接続管部１９，１９ａ
と反対側において上記両球面部１６，１６ａと一体に折
曲形成されたバネ受け部で、上記両排気管５，５ａの並
設方向の両側方へ突出して上記第２のフランジ６と対面
するように形成されている。Reference numerals 20 and 20a denote the connecting pipe portions 19 and 19a.
On the opposite side, the spring receiving portion is integrally formed with the spherical surface portions 16 and 16a by bending, and projects toward both sides of the exhaust pipes 5 and 5a in the juxtaposed direction to face the second flange 6. Is formed.

【００３０】２１は第１のベローズカバー１２における
球面部１４の外面と上記第２のベローズカバー１５にお
ける球面部１６の内面との隙間Ｄ内に介在され、かつ、
一方の球面部１６側に固着した摺動抵抗体である。該摺
動抵抗体２１は、これと球面部１４，１４ａとの摺動時
に大きな摩擦抵抗力を発揮する材質で形成されており、
望ましくは、板状のカーボン材やワイヤメッシュ材の耐
熱性、断熱性を有するものが良く、特にへたりの少ない
カーボン材が良い。更に、図１及び図４に示すように、
非屈曲形態時において、球面の中心Ｏ1 を通る第２のフ
ランジ６と平行する面Ａよりも第２の排気管５側に寄っ
た部分にその摺動抵抗体２１の全部又はその一部が位置
するようにして配置されている。Reference numeral 21 is interposed in the gap D between the outer surface of the spherical surface portion 14 of the first bellows cover 12 and the inner surface of the spherical surface portion 16 of the second bellows cover 15, and
It is a sliding resistor fixed to one spherical surface 16 side. The sliding resistor 21 is made of a material that exerts a large frictional resistance when sliding between the sliding resistor 21 and the spherical surface portions 14 and 14a.
Desirably, a plate-shaped carbon material or a wire mesh material having heat resistance and heat insulation is preferable, and particularly a carbon material with less sagging is preferable. Further, as shown in FIGS. 1 and 4,
In the non-bent form, all or a part of the sliding resistor 21 is located in the portion closer to the second exhaust pipe 5 side than the surface A parallel to the second flange 6 passing through the center O 1 of the spherical surface. It is arranged so as to be located.

【００３１】また、他方の球面部１４ａと１６ａ間にも
上記と同様な摺動抵抗体２１ａが上記と同様に配置され
ている。上記第１のフランジ２における両第１の排気管
１，１ａの並設方向の両側部には雌ねじ２２，２２ａが
刻設され、また、第２のフランジ６には、上記雌ねじ２
２，２２ａと同心位置に、雌ねじ２２，２２ａより大径
の貫通穴２３，２３ａが貫通形成されている。更に上記
バネ受け部２０，２０ａには、上記貫通穴２３，２３ａ
と同心位置に穴２４，２４ａが形成されている。尚、該
穴２４，２４ａの内径は後述する係止鍔２７，２７ａが
通過する径に形成されている。A sliding resistor 21a similar to that described above is also disposed between the other spherical surface portions 14a and 16a in the same manner as described above. Female threads 22, 22a are engraved on both sides of the first flange 2 in the juxtaposed direction of the first exhaust pipes 1, 1a, and the second flange 6 is provided with the female threads 2 and 22a.
Through holes 23, 23a having a diameter larger than that of the female screws 22, 22a are formed so as to be concentric with the screw holes 22, 22a. Further, the spring receiving portions 20 and 20a have the through holes 23 and 23a.
Holes 24 and 24a are formed concentrically with. The inner diameters of the holes 24, 24a are formed to allow the locking collars 27, 27a, which will be described later, to pass therethrough.

【００３２】２５は連結軸で、その先部に雄ねじ２６が
刻設され、その中間部に係止鍔２７が一体形成され、頭
部に六角頭２８が一体形成されている。そして該連結軸
２５にバネ座２９と、付勢手段としての弾性体であるコ
イルスプリング３０と、上記バネ受け部２０の穴２４と
を、この順序で挿入した状態で、その連結軸２５の雄ね
じ２６を第２のフランジ６の貫通穴２３に挿通して第１
のフランジ２の雌ねじ２２に螺着し、これら連結軸２５
等が第２のフランジ６の下流側面、すなわち第２の排気
管５側へ突出して設けられている。また、この連結軸２
５の螺着によってその係止鍔２７により、第２のフラン
ジ６が第１のフランジ２へ圧着されて連結される。両フ
ランジ２，６間には環状のガスケットＧが介在されてい
る。Reference numeral 25 is a connecting shaft, which has a male screw 26 engraved on its front end, a locking collar 27 integrally formed on the middle portion thereof, and a hexagonal head 28 integrally formed on the head portion. Then, a spring seat 29, a coil spring 30 which is an elastic body as a biasing means, and a hole 24 of the spring receiving portion 20 are inserted into the connecting shaft 25 in this order, and a male screw of the connecting shaft 25 is inserted. 26 through the through hole 23 of the second flange 6
These are connected to the female screw 22 of the flange 2 of the
Etc. are provided so as to project toward the downstream side surface of the second flange 6, that is, the second exhaust pipe 5 side. Also, this connecting shaft 2
The second flange 6 is crimped and connected to the first flange 2 by means of the locking flange 27 by screwing 5. An annular gasket G is interposed between the flanges 2 and 6.

【００３３】上記弾性体であるスプリング３０は、所定
量圧縮された状態で介在され、第２のベローズカバー１
５を所定荷重により第２のフランジ６側へ付勢してい
る。上記第１のフランジ２の他方の雌ねじ２２ａ側にも
上記と同様の連結軸２５ａが上記と同様に螺着され、該
連結軸２５ａに上記と同様に弾性体であるコイルスプリ
ング３０ａが備えられている。この連結軸２５ａ側の連
結部の構造は上記連結軸２５側と同様であるため、上記
と同一部品には上記と同一符号にａを付してその説明は
省略する。The spring 30, which is the elastic body, is interposed in a state of being compressed by a predetermined amount, and the second bellows cover 1 is provided.
5 is biased toward the second flange 6 side by a predetermined load. A connection shaft 25a similar to the above is screwed to the other female screw 22a side of the first flange 2 in the same manner as described above, and the connection shaft 25a is provided with a coil spring 30a which is an elastic body similar to the above. There is. Since the structure of the connecting portion on the side of the connecting shaft 25a is similar to that on the side of the connecting shaft 25, the same parts as those described above are denoted by the same reference numerals as above and the description thereof is omitted.

【００３４】以上のようであるから、組付に際しては、
所望の柔軟特性を発揮する山数のベローズ８，８ａを、
その両端を第２の排気管５，５ａと第２のフランジ６に
溶接固着して架設する。また、第１のベローズカバー１
２，１２ａを第２のフランジ６側へ固着する。更に、第
２のベローズカバー１６，１６ａにおけるバネ受け部２
０，２０ａの奥行きすなわち第２のフランジ６との対向
距離や弾性体３０，３０ａの長さ又は連結軸２５，２５
ａの長さを所望に設定して第２のベローズカバー１５，
１５ａを第２の排気管５，５ａに固着し、所望のバネ力
が得られるようにする。このとき、ベローズ８，８ａの
長さ（山数）と弾性体３０，３０ａによるバネ力の設定
は相互に影響することなく独立的に設定できる。例えば
図１のものに比べて、ベローズ８，８ａを長めのもの
（山数の多いもの）にして柔軟性を高め、反面、弾性体
３０，３０ａを短いものにしてバネ力を強くし、振動吸
収力を高める。As described above, when assembling,
Bellows 8 and 8a with a number of peaks that exhibit the desired flexibility
Both ends are welded and fixed to the second exhaust pipes 5 and 5a and the second flange 6, and installed. Also, the first bellows cover 1
2, 12a are fixed to the second flange 6 side. Furthermore, the spring receiving portion 2 in the second bellows covers 16 and 16a
Depth of 0, 20a, that is, distance facing the second flange 6, length of the elastic body 30, 30a or connecting shaft 25, 25
By setting the length of a to a desired value, the second bellows cover 15,
15a is fixed to the second exhaust pipes 5 and 5a so that a desired spring force can be obtained. At this time, the length (number of peaks) of the bellows 8 and 8a and the spring force of the elastic bodies 30 and 30a can be set independently without affecting each other. For example, as compared with the one shown in FIG. 1, the bellows 8 and 8a are made longer (the one with a large number of peaks) to enhance flexibility, while the elastic bodies 30 and 30a are made shorter to increase the spring force and to vibrate. Increase absorption.

【００３５】このようなことから、ベローズ特性のチュ
ーニングとバネ特性のチューニングが独立して任意に設
定でき、継手特性の設定の自由度が向上する。更に、上
記のようにカーボン材等の摺動抵抗体２１，２１ａを介
在することにより、仮に両球面部１４，１４ａと１６，
１６ａとの球面精度が粗くても、これらの摺動が支障な
く行われる。そのため、該球面部の工作及び組付けが容
易になる。なお、フランジ６に雌ねじを刻設してこれに
連結軸２５，２５ａを螺着してもよく、連結軸２５，２
５ａの固着手段は任意である。As described above, the tuning of the bellows characteristic and the tuning of the spring characteristic can be independently set, and the degree of freedom in setting the joint characteristic is improved. Further, by interposing the sliding resistors 21 and 21a such as carbon material as described above, it is possible to temporarily dispose both spherical surface portions 14, 14a and 16,
Even if the spherical precision with 16a is rough, these sliding can be performed without any trouble. Therefore, the working and the assembling of the spherical portion are facilitated. The flange 6 may be engraved with a female screw and the connecting shafts 25 and 25a may be screwed thereto.
The fixing means of 5a is optional.

【００３６】次に組付け後の使用状態において、上流側
の第１の排気管１，１ａと下流側の第２の排気管５，５
ａが相対的に屈曲した場合には、ベローズ８，８ａが屈
曲するとともに一方の連結部例えばバネ受け部２０が第
２のフランジ６側へ移動し、他方の連結部例えばバネ受
け部２０ａが第２のフランジ６より遠ざかり、弾性体３
０ａが圧縮される。そのため、この弾性体３０ａが屈曲
力の抗力（反力）として作用し、かつ屈曲力の減衰が促
進されその屈曲力が吸収される。この吸収は全方向の屈
曲に対して可能である。Next, in the use state after assembly, the upstream first exhaust pipes 1 and 1a and the downstream second exhaust pipes 5 and 5 are installed.
When a is relatively bent, the bellows 8 and 8a are bent and at the same time one connecting part, for example, the spring receiving part 20 moves to the second flange 6 side, and the other connecting part, for example, the spring receiving part 20a is moved to the first side. 2 away from the flange 6 and the elastic body 3
0a is compressed. Therefore, the elastic body 30a acts as a reaction force (reaction force) of the bending force, the damping of the bending force is promoted, and the bending force is absorbed. This absorption is possible for bending in all directions.

【００３７】更に、上記の屈曲時においては、球面部１
６，１６ａに固着された摺動抵抗体２１，２１ａと球面
部１４，１４ａとがＯ1 を中心として相対移動して摺動
する。このとき、上記摺動抵抗体２１，２１ａは弾性体
３０，３０ａの付勢力によって球面部１４，１４ａの外
面と圧接状態で摺動するため、この摺動による摩擦力が
屈曲力の抗力と減衰力として作用し、屈曲力の減衰性が
向上する。Further, at the time of bending as described above, the spherical surface portion 1
Sliding resistors 21, 21a fixed to 6, 16a and spherical portions 14, 14a relatively move about O 1 and slide. At this time, since the sliding resistors 21 and 21a slide in pressure contact with the outer surfaces of the spherical portions 14 and 14a by the urging force of the elastic bodies 30 and 30a, the frictional force due to this sliding and the damping force of the bending force are attenuated. It acts as a force and the damping of the bending force is improved.

【００３８】更に、経年により上記摺動抵抗体２１，２
１ａが摩耗して薄肉になった場合には、その摩耗分だけ
弾性体３０，３０ａの付勢力によって第２のベローズカ
バー１５が第２のフランジ６側へ移動し、摺動抵抗体２
１，２１ａと球面部１４，１４ａとの当接を確保する。
そのため、経年によっても上記のような初期に設定した
減衰力が維持され、長期に亘って安定した摺動抵抗が得
られる。Furthermore, the sliding resistors 21, 2 are changed with the passage of time.
When 1a becomes thin due to wear, the second bellows cover 15 moves toward the second flange 6 side by the urging force of the elastic bodies 30 and 30a, and the sliding resistance 2
The contact between the 1, 21a and the spherical portions 14, 14a is ensured.
Therefore, the damping force set at the initial stage as described above is maintained even with age, and stable sliding resistance can be obtained for a long period of time.

【００３９】更に、摺動抵抗体２１，２１ａが断熱性を
有するものである場合には、排気管側の熱が弾性体３
０，３０ａに伝熱することを抑制し、該弾性体３０，３
０ａの耐久性を向上する。Further, when the sliding resistors 21 and 21a have a heat insulating property, the heat on the exhaust pipe side is applied to the elastic body 3.
Heat transfer to the elastic bodies 30, 3
The durability of 0a is improved.

【００４０】また、自動車走行中において、ベローズ
８，８ａへ飛石等の異物が飛来した場合には、これが両
ベローズカバー１２，１２ａ，１５に当り、ベローズ
８，８ａへの直撃が回避されて、ベローズ８，８ａが保
護される。When foreign matters such as flying stones fly to the bellows 8 and 8a while the vehicle is running, they hit both bellows covers 12, 12a and 15 to avoid direct hits on the bellows 8 and 8a. The bellows 8, 8a are protected.

【００４１】図５は本発明の第２実施例の要部断面図を
示す。本第２実施例は、上記第１実施例における第２の
ベローズカバー１５のバネ受け部２０，２０ａの穴２
４，２４ａに、上記弾性体であるコイルスプリング３
０，３０ａの位置決め環３１を形成したものである。そ
の他の構造は上記第１実施例と同様である。FIG. 5 shows a sectional view of the essential portions of the second embodiment of the present invention. In the second embodiment, the hole 2 of the spring receiving portion 20, 20a of the second bellows cover 15 in the first embodiment is used.
The coil spring 3 which is the elastic body is attached to 4, 24a.
The positioning ring 31 of 0, 30a is formed. Other structures are the same as in the first embodiment.

【００４２】本第２実施例によれば、弾性体であるコイ
ルスプリング３０，３０ａが連結軸２４，２４ａに干渉
することを防止できる。図６は本発明の第３実施例を示
す。According to the second embodiment, it is possible to prevent the coil springs 30 and 30a, which are elastic bodies, from interfering with the connecting shafts 24 and 24a. FIG. 6 shows a third embodiment of the present invention.

【００４３】本第３実施例は上記第１実施例における連
結軸部（連結部）が相違する変形例である。相違部につ
いて説明すると、上記第１実施例における第１のフラン
ジ２と第２のフランジ６とは単なるボルト３２，３２ａ
で連結している。また、第１，第２のフランジ２，６の
中央部に長尺の頭付連結杆３３を挿通してその先部を第
２のベローズカバー１５における壁１８の中央に挿通
し、その先部に刻設した雄ねじ部３４にナット３５を螺
合し、該ナット３５と壁１８間に付勢手段としての弾性
体であるコイルスプリング３６を圧縮介在して、第２の
ベローズカバー１５を第１のベローズカバー１２側へ押
圧している。また、連結杆３３の頭部３３ａは図示のよ
うにその座面を球面にし、更に連結杆３３が挿通する両
フランジ２，６の穴は若干大径にして、排気管の屈曲に
対して連結杆３３が追従揺動できるようになっている。The third embodiment is a modification in which the connecting shaft portion (connecting portion) in the first embodiment is different. Explaining the difference, the first flange 2 and the second flange 6 in the first embodiment are simply bolts 32, 32a.
Are connected by Further, a long head connecting rod 33 is inserted through the central portions of the first and second flanges 2 and 6, and the tip portion thereof is inserted through the center of the wall 18 of the second bellows cover 15, and the tip portions thereof are inserted. A nut 35 is screwed into the male screw portion 34 engraved on the second bellows cover 15. The nut 35 and the wall 18 are compressed by a coil spring 36 which is an elastic body serving as a biasing means. Is pressed toward the bellows cover 12 side. Further, the head 33a of the connecting rod 33 has a spherical seat surface as shown in the drawing, and the holes of both flanges 2 and 6 through which the connecting rod 33 is inserted have a slightly larger diameter so that they can be connected to the bent exhaust pipe. The rod 33 can follow and swing.

【００４４】その他の構造は上記第１実施例と同様であ
るので、同一部分には同一の符号を付してその説明を省
略する。本第３実施例においても上記第１実施例と同様
の作用、効果を発揮する上に、加えて上記第１実施例と
比較して連結軸等の連結部品の削減と組立ての容易化を
図り、製品の低廉化を図ることができる。Since the other structure is similar to that of the first embodiment, the same parts are designated by the same reference numerals and the description thereof will be omitted. In the third embodiment as well, the same actions and effects as those of the first embodiment are exhibited, and in addition, the number of connecting parts such as the connecting shaft and the like and the assembling are facilitated in comparison with the first embodiment. Therefore, the cost of the product can be reduced.

【００４５】図７は本発明の第４実施例を示す。本第４
実施例は、上記第１実施例のような構造を採用して、上
流側の１本の排気管と下流側の１本排気管を連結する場
合の実施例である。FIG. 7 shows a fourth embodiment of the present invention. Book 4
The embodiment is an embodiment in which one upstream exhaust pipe and one downstream exhaust pipe are connected by adopting the structure as in the first embodiment.

【００４６】その構造は、上記第１実施例における他方
の排気管５ａ、他方のベローズ８ａ、他方の排気導入パ
イプ１１ａ、他方の第１排気管１ａをなくし、第２のベ
ローズカバー１５に排気管５の軸心を中心Ｏ2 とする略
半球状の球面部１６を形成し、第１のベローズカバー１
２，１２ａを第１のベローズカバー１５の半球面に沿っ
た球面に形成したものである。また、第２のベローズカ
バー１５の球面部１６の内面には上記と同様の摺動抵抗
体２１が固着されており、これに第１のベローズカバー
１２の球面部１４の外面が摺接するようになっている。
その他の構造は上記第１実施例と同様であり、同一部分
には同一符号を付してその説明を省略する。The structure is such that the other exhaust pipe 5a, the other bellows 8a, the other exhaust introduction pipe 11a and the other first exhaust pipe 1a in the first embodiment are eliminated, and the second bellows cover 15 has an exhaust pipe. The first bellows cover 1 is formed by forming a substantially hemispherical spherical surface portion 16 having the axis O 5 as the center O 2.
2, 12a are formed on a spherical surface along the hemispherical surface of the first bellows cover 15. A sliding resistor 21 similar to the above is fixed to the inner surface of the spherical surface portion 16 of the second bellows cover 15, and the outer surface of the spherical surface portion 14 of the first bellows cover 12 is brought into sliding contact therewith. Has become.
The other structure is the same as that of the first embodiment, and the same parts are designated by the same reference numerals and the description thereof will be omitted.

【００４７】本第４実施例は、１本の排気系を連結する
ものにおいて、上記第１実施例と同様の作用、効果を発
揮できる。尚、上記各実施例においては夫々摺動抵抗体
２１，２１ａを設けたが、これらの実施例において摺動
抵抗体２１，２１ａを排して第２のベローズカバー１５
の球面部１６，１６ａの内面を第１のベローズカバー１
２の球面部１４，１４ａの外面に直接摺動可能に接触さ
せてもよい。この場合でも両ベローズカバー１２，１２
ａと１５との摺接による減衰力発生効果を有する。しか
し、上記の摺動抵抗体２１，２１ａの特有の効果は当然
発揮しない。In the fourth embodiment, in which one exhaust system is connected, the same action and effect as those of the first embodiment can be exhibited. Although the sliding resistors 21 and 21a are provided in each of the above-described embodiments, the sliding resistors 21 and 21a are removed and the second bellows cover 15 is provided in these embodiments.
The inner surface of the spherical portion 16, 16a of the first bellows cover 1
The outer surface of the second spherical surface portion 14 or 14a may be directly slidably contacted. Even in this case, both bellows covers 12, 12
It has the effect of generating a damping force by the sliding contact between a and 15. However, the above-mentioned specific effects of the sliding resistors 21 and 21a naturally do not appear.

【００４８】[0048]

【発明の効果】以上のようであるから、請求項１記載の
発明によれば、両球面部によって屈曲が良好に行えるは
勿論、特に第２のベローズカバーの付勢手段による付勢
力と、この付勢力によって両球面部が相互に押圧的に接
触することにより、屈曲に対する減衰力を向上させ、か
つ長期に亘って安定して得ることができる。As described above, according to the first aspect of the present invention, it is of course possible to favorably bend the two spherical portions, and in particular the urging force of the second bellows cover urging means, Since both spherical portions are pressed against each other by the urging force, the damping force against bending can be improved and can be stably obtained for a long period of time.

【００４９】請求項２記載の発明によれば、摺動抵抗体
により一層減衰力の向上を図ることができる。請求項３
記載の発明によれば、長期に亘って安定した減衰力が維
持できる。更に、球面部の工作が容易になる上に組付け
も容易になる。According to the second aspect of the invention, the damping force can be further improved by the sliding resistor. Claim 3
According to the described invention, stable damping force can be maintained for a long period of time. In addition, the spherical part can be easily machined and also easily assembled.

【００５０】請求項４記載の発明によれば、摺動抵抗体
のへたりが極めて少なく、長期に亘って上記の効果を発
揮できる。請求項５記載の発明によれば、更に上記の効
果を発揮しつつコンパクトなデュアル継手を実現でき
る。According to the invention described in claim 4, the sliding resistor has very little settling, and the above effect can be exhibited for a long period of time. According to the invention described in claim 5, it is possible to realize a compact dual joint while further exhibiting the above effect.

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

【図１】本発明の第１実施例を示す平断面図。FIG. 1 is a plan sectional view showing a first embodiment of the present invention.

【図２】図１における第１のフランジを除いて第２のフ
ランジ側から見た図。FIG. 2 is a view seen from a second flange side, excluding the first flange in FIG.

【図３】図１における両ベローズカバーを示す平断面
図。FIG. 3 is a plan sectional view showing both bellows covers in FIG.

【図４】摺動抵抗体の配置状態を示す拡大一部平断面
図。FIG. 4 is an enlarged partial plan sectional view showing an arrangement state of sliding resistors.

【図５】本発明の第２実施例を示す略平断面図。FIG. 5 is a schematic plan sectional view showing a second embodiment of the present invention.

【図６】本発明の第３実施例を示す平断面図。FIG. 6 is a plan sectional view showing a third embodiment of the present invention.

【図７】本発明の第４実施例を示す平断面図。FIG. 7 is a plan sectional view showing a fourth embodiment of the present invention.

【図８】従来構造を示す要部の平断面図。FIG. 8 is a plan sectional view of a main part showing a conventional structure.

【符号の説明】[Explanation of symbols]

１，５…排気管 ６…フランジ ８…ベローズ １２…第１のベ
ローズカバー １５…第２のベローズカバー １４，１６…球
面部 ２１…摺動抵抗体 ３０…付勢手段
である弾性体 Ｏ1 …中心1, 5 ... Exhaust pipe 6 ... Flange 8 ... Bellows 12 ... First bellows cover 15 ... Second bellows cover 14, 16 ... Spherical part 21 ... Sliding resistor 30 ... Elastic body O 1 as biasing means ... center

Claims (5)

【特許請求の範囲】[Claims] 【請求項１】 フランジ（６）にベローズ（８）の一端
を接続し、該ベローズ（８）の他端に排気管（５）を接
続し、ベローズ（８）の外部に、ベローズ（８）側に中
心（Ｏ1 ）をもつ球面部（１４）を有する第１のベロー
ズカバー（１２）を配置するとともに該第１のベローズ
カバー（１２）の一端を上記フランジ（６）に固着し、
上記第１のベローズカバー（１２）の外部には、該第１
のベローズカバー（１２）と同心の球面部（１６）を有
する第２のベローズカバー（１５）を配置するとともに
その一端を上記排気管（５）側に固着し、上記第２のベ
ローズカバー（１５）をフランジ（６）方向へ付勢する
付勢手段を設けたことを特徴とする排気管継手。1. A flange (6) is connected to one end of a bellows (8), an exhaust pipe (5) is connected to the other end of the bellows (8), and the bellows (8) is connected to the outside of the bellows (8). A first bellows cover (12) having a spherical surface portion (14) having a center (O 1 ) on the side thereof is arranged, and one end of the first bellows cover (12) is fixed to the flange (6),
The outside of the first bellows cover (12) has the first
A second bellows cover (15) having a spherical portion (16) concentric with the bellows cover (12) of FIG. ) Is provided in the direction of the flange (6), and an exhaust pipe joint is provided. 【請求項２】 請求項１記載の両球面部（１４）（１
６）間に摺動抵抗体（２１）を介在した排気管継手。2. Both spherical surface parts (14) (1) according to claim 1.
6) An exhaust pipe joint in which a sliding resistor (21) is interposed. 【請求項３】 請求項２記載の摺動抵抗体（２１）を、
第２のベローズカバー（１５）がフランジ（６）方向へ
付勢されることにより第１のベローズカバー（１２）に
おける球面部（１４）の外面に押圧される部分に配設し
た排気管継手。3. The sliding resistor (21) according to claim 2,
An exhaust pipe joint arranged at a portion of the first bellows cover (12) that is pressed against the outer surface of the spherical surface portion (14) by urging the second bellows cover (15) toward the flange (6). 【請求項４】 請求項２又は３記載の摺動抵抗体（２
１）をカーボン材で形成した排気管継手。4. The sliding resistor (2 according to claim 2 or 3.
Exhaust pipe joint made of carbon material 1). 【請求項５】 請求項１乃至４のいずれかに記載の１個
のフランジ（６）に排気管とベローズとからなる排気系
を複数並設し、上記複数のベローズの外部に上記の両ベ
ローズカバーを配設した排気管継手。5. A plurality of exhaust systems consisting of exhaust pipes and bellows are arranged in parallel on one flange (6) according to any one of claims 1 to 4, and both bellows are provided outside the plurality of bellows. Exhaust pipe fitting with a cover.
JP8010712A 1996-01-25 1996-01-25 Exhaust pipe joint Withdrawn JPH09203487A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8010712A JPH09203487A (en) 1996-01-25 1996-01-25 Exhaust pipe joint

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8010712A JPH09203487A (en) 1996-01-25 1996-01-25 Exhaust pipe joint

Publications (1)

Publication Number Publication Date
JPH09203487A true JPH09203487A (en) 1997-08-05

Family

ID=11757924

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8010712A Withdrawn JPH09203487A (en) 1996-01-25 1996-01-25 Exhaust pipe joint

Country Status (1)

Country Link
JP (1) JPH09203487A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2358686A (en) * 2000-01-28 2001-08-01 Dnv Inc A strain absorption device for a vehicle exhaust
US6388049B1 (en) 1999-07-01 2002-05-14 Asahi Kasei Kabushiki Kaisha Low-molecular weight oxymethylene polymer and composition thereof
KR20040037926A (en) * 2002-10-31 2004-05-08 현대자동차주식회사 Flexible pipe structure
JP2008274851A (en) * 2007-04-27 2008-11-13 Hino Motors Ltd Exhaust emission control device
ITMI20081381A1 (en) * 2008-07-28 2010-01-29 Att Advanced Textiles & Thermal Ins Ulation Spa DEVICE TO COMPENSATE THE THERMAL EXPANSION OF AT LEAST ONE CONDUIT

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6388049B1 (en) 1999-07-01 2002-05-14 Asahi Kasei Kabushiki Kaisha Low-molecular weight oxymethylene polymer and composition thereof
GB2358686A (en) * 2000-01-28 2001-08-01 Dnv Inc A strain absorption device for a vehicle exhaust
KR20040037926A (en) * 2002-10-31 2004-05-08 현대자동차주식회사 Flexible pipe structure
JP2008274851A (en) * 2007-04-27 2008-11-13 Hino Motors Ltd Exhaust emission control device
ITMI20081381A1 (en) * 2008-07-28 2010-01-29 Att Advanced Textiles & Thermal Ins Ulation Spa DEVICE TO COMPENSATE THE THERMAL EXPANSION OF AT LEAST ONE CONDUIT

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Effective date: 20030401