JPH03253716A - Joint for fluid carrying pipe - Google Patents
Joint for fluid carrying pipeInfo
- Publication number
- JPH03253716A JPH03253716A JP33969490A JP33969490A JPH03253716A JP H03253716 A JPH03253716 A JP H03253716A JP 33969490 A JP33969490 A JP 33969490A JP 33969490 A JP33969490 A JP 33969490A JP H03253716 A JPH03253716 A JP H03253716A
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- fluid
- exhaust pipe
- fluid communication
- spring
- 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
Links
- 239000012530 fluid Substances 0.000 title claims abstract description 126
- 238000000926 separation method Methods 0.000 claims abstract description 14
- 238000004891 communication Methods 0.000 claims description 47
- 238000006073 displacement reaction Methods 0.000 claims description 41
- 238000013459 approach Methods 0.000 claims description 13
- 230000002093 peripheral effect Effects 0.000 claims description 9
- 239000002184 metal Substances 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 239000002759 woven fabric Substances 0.000 claims description 4
- 240000001549 Ipomoea eriocarpa Species 0.000 claims description 2
- 235000005146 Ipomoea eriocarpa Nutrition 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 abstract description 6
- 230000005540 biological transmission Effects 0.000 abstract description 5
- 239000000463 material Substances 0.000 description 18
- 239000007789 gas Substances 0.000 description 9
- 229920001971 elastomer Polymers 0.000 description 4
- 230000008602 contraction Effects 0.000 description 3
- 230000007935 neutral effect Effects 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000004323 axial length Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 229920006015 heat resistant resin Polymers 0.000 description 1
- 239000003779 heat-resistant material Substances 0.000 description 1
- 238000009940 knitting Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000011295 pitch Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 230000008685 targeting Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
Landscapes
- Exhaust Silencers (AREA)
Abstract
Description
【発明の詳細な説明】
「産業上の利用分野」
本発明は、自動車等に使用される排気管の継手に好適な
流体送通管用継手に関する。DETAILED DESCRIPTION OF THE INVENTION "Field of Industrial Application" The present invention relates to a joint for a fluid communication pipe suitable for a joint for an exhaust pipe used in an automobile or the like.
［従来の技術］
例えは、従来よりエンジンの振動等を車体やマフラーに
伝わらないようにするために、排気管の途中に蛇腹状パ
イプ或いは球面継手からなる排気管継手が使用されてい
る。[Prior Art] For example, in order to prevent engine vibrations from being transmitted to the vehicle body or muffler, an exhaust pipe joint made of a bellows-shaped pipe or a spherical joint has been used in the middle of an exhaust pipe.
［発明が解決しようとする課題」
ところで、蛇腹状パイプからなる継手においては、排気
管に繰り返し生じる相対角変位及び相対軸方向変位によ
り曲げ応力及び伸縮応力が作用し、この応力により蛇腹
状パイプに疲労を生じ、ひいては亀裂が発生しこの亀裂
から排気ガスが漏洩するという耐久性の点で問題がある
。[Problems to be Solved by the Invention] By the way, in a joint made of a bellows-shaped pipe, bending stress and expansion/contraction stress act on the exhaust pipe due to relative angular displacement and relative axial displacement that occur repeatedly, and this stress causes the bellows-shaped pipe to This poses a problem in terms of durability, as it causes fatigue and eventually cracks, from which exhaust gas leaks.
また、排気管に生しる上記変位を許容するためには、蛇
腹状パイプはある程度の長さを必要とするため、高価に
なるという問題がある。Furthermore, the bellows-shaped pipe requires a certain length in order to accommodate the above-mentioned displacement that occurs in the exhaust pipe, so there is a problem in that it is expensive.
一方、排気管外周面にシールリングを装着してなる球面
継手においては、一般に排気管に生しる相対角変位は許
容するが相対軸方向変位は許容てきない構造となってお
り、軸方向変位をも許容するには、排気管外周面とシー
ルリングの内孔間に適度なりリアランスを設け、シール
リングが排気管の外周面を軸方向に摺動可能とする構造
を必要とし、このクリアランスから排気ガスが漏洩する
という問題がある。On the other hand, spherical joints in which a seal ring is attached to the outer circumferential surface of the exhaust pipe are generally designed to allow relative angular displacement in the exhaust pipe, but not relative axial displacement. In order to allow this, it is necessary to provide a certain clearance between the outer circumferential surface of the exhaust pipe and the inner hole of the seal ring, and to have a structure that allows the seal ring to slide on the outer circumferential surface of the exhaust pipe in the axial direction. There is a problem with exhaust gas leaking.
以上のような問題は、自動車等の排気管継手に限って生
しるものではなく、振動の伝達を阻止せんとする流体送
通管用継手において一般的に生じるのである。The above-mentioned problems do not occur only in exhaust pipe joints for automobiles, etc., but generally occur in joints for fluid communication pipes that are intended to prevent the transmission of vibrations.
本発明は前記諸点に鑑みてなされたものであり、その目
的とするところは、振動の伝達を阻止しえ且つ耐久性の
向上を図り得る流体送通管用継手を提供することにある
。The present invention has been made in view of the above points, and an object thereof is to provide a joint for a fluid communication pipe that can prevent transmission of vibrations and improve durability.
また、本発明の他の目的とするところは、筒状体の長さ
を短くし得る流体送通管用継手を提供することにある。Another object of the present invention is to provide a fluid communication pipe joint that can shorten the length of the cylindrical body.
更に、本発明の他の目的とするところは、流体の漏洩を
所望に防止し得る流体送通管用継手を提供することにあ
る。Furthermore, another object of the present invention is to provide a joint for a fluid communication pipe that can prevent fluid leakage as desired.
［課題を解決するための手段］
本発明によれば前記目的は、一方の流体送通管に対する
他方の流体送通管の相対的な軸方向の接近及び離反変位
を弾性的に規制すべく、両流体送通管の隣接する管端部
間に設けられる弾性装置と、両流体送通管の隣接する管
端部間からの流体の漏出を阻止すべく、一端が一方の流
体送通管の管端部側に、他端が他方の流体送通管の管端
部側に夫々連結される筒状体とを具備した同軸上に配列
される複数の流体送通管のための継手によって達成され
る。[Means for Solving the Problems] According to the present invention, the object is to elastically restrict the relative axial approach and separation displacement of one fluid delivery pipe to the other fluid delivery pipe, An elastic device is provided between adjacent ends of both fluid delivery pipes, and one end of the fluid delivery pipe is provided with an elastic device provided between adjacent ends of the fluid delivery pipes. Achieved by a joint for a plurality of fluid conveyance tubes arranged coaxially, which has a cylindrical body on the tube end side, the other end of which is connected to the tube end side of the other fluid conveyance tube, respectively. be done.
本発明の継手は、流体を所望に送通する流体送通管のた
めのものであり、流体としては、液体及び気体（ガス）
を含み、特に本発明の継手は、自動車等のエンジンから
の排気ガスを排出する排気管を連結するのに好適である
が、清浄空気、工場排気ガス等の他のガス或いは洗浄用
水、工場排水若しくは油等の液体を送通する管にも適用
し得る９本発明にいう同軸上に配列されるとは、軸心が
連続するということであって、従って、本発明の継手が
適用される流体送通管は、真直ぐに伸びていても良く、
また、いわゆるＵ字管等で代表されるようにまがってい
ても良く、或いはこれらが組合さったものでも良い。更
には、連結される両流体送通管の径は異なっていても良
く、また、その断面形状は円形、楕円形成いは四角形で
代表される多角形であってもよいのである。The joint of the present invention is for a fluid transmission pipe that transmits fluid as desired, and fluids include liquids and gases.
In particular, the joint of the present invention is suitable for connecting exhaust pipes that discharge exhaust gas from engines such as automobiles, but it is also suitable for connecting exhaust pipes that discharge exhaust gas from engines such as automobiles. It can also be applied to pipes that convey liquids such as oil.9 Being coaxially arranged in the present invention means that the axes are continuous, and therefore the joint of the present invention is applicable. The fluid communication pipe may extend straight,
Furthermore, it may be curved, as typified by a so-called U-shaped tube, or a combination of these may be used. Furthermore, the diameters of the two fluid communication tubes to be connected may be different, and the cross-sectional shape may be circular, oval, or polygonal, such as a square.
本発明の弾性装置は、一方の流体送通管に対する他方の
流体送通管の相対的な軸方向の接近及び離反変位を弾性
的に規制するものであれば、いずれの構造てあっても良
く、この様な弾性装置は、例えは、スプリングワッシャ
、空気ばね、好ましいＢ様では、ゴム部材又はコイルば
ね等の弾性部材を具備して構成され、最も好ましくは、
コイルばねを具備して構成される。The elastic device of the present invention may have any structure as long as it elastically restricts the relative axial approach and separation displacement of one fluid delivery pipe to the other fluid delivery pipe. , such an elastic device is configured with an elastic member such as a spring washer, an air spring, and in the preferred case B, a rubber member or a coil spring, and most preferably,
It is equipped with a coil spring.
本発明の弾性装置は、少なくとも相対的な軸方向の接近
及び離反変位を規制するが、これに加えて好ましくは角
変位をも規制するように構成されると良い。The elastic device of the present invention is configured to restrict at least relative axial displacement toward and away from each other, but preferably also to restrict angular displacement.
ゴム部材又はコイルばね等の弾性部材を具備して構成さ
れる弾性装置の場合、一つの例では、方の流体送通管に
対する他方の流体送通管の相対的な軸方向の変位におい
て、接近変位を弾性的に規制する一方の弾性部材と離反
変位を弾性的に規制する他方の弾性部材とからなる一対
の弾性部材を流体送通管の周りに均等に複数対配置する
。他の例では、流体送通管の周りをぐるりと取囲むよう
な環状のゴム部材又はコイルばねからなる弾性部材を一
対準備してこれを流体送通管の周りに対向して配置して
弾性装置を構成する。このようにすると、一対のみの弾
性部材で弾性装置を構成し得る。また、弾性部材は、ゴ
ム部材又はコイルばねのいずれか一方のみで形成する必
要はなく、これらを組合わせて用いても良い。In the case of an elastic device comprising an elastic member such as a rubber member or a coil spring, in one example, the relative axial displacement of one fluid delivery tube with respect to the other fluid delivery tube may A plurality of pairs of elastic members, each consisting of one elastic member that elastically restricts displacement and the other elastic member that elastically restricts separation displacement, are arranged evenly around the fluid passage tube. In another example, a pair of elastic members made of annular rubber members or coil springs that surround the fluid delivery pipe are prepared, and these are arranged oppositely around the fluid delivery pipe to provide elasticity. Configure the device. In this way, the elastic device can be configured with only one pair of elastic members. Further, the elastic member does not need to be formed of either a rubber member or a coil spring, and may be used in combination.
本発明の弾性装置は、連結すべき両流体送通管の管端部
間に設けられる。本発明の継手において、一方の流体送
通管の管端部に固定された凹球面座と、この凹球面座に
着座するように、他方の流体送通管の管端部に設けられ
凸球面部材とを具備し、一方の流体送通管に対する他方
の流体送通管の相対的角変位を案内する球面案内装置が
管端部間に設けられる場合には、本発明の弾性装置の一
つの例は、一方の流体送通管の管端部に固定されるフラ
ン部と、他方の流体送通管の管端部に固定される第一の
ばね受と、軸方向においてフランジ部の一方の流体送通
管の管端部に対する固定部と第一のばね受の他方の流体
送通管の管端部に対する固定部との間に配置される第二
のばね受と、軸方向において第一のばね受及びフランジ
部のうちいずれか一方の側に配置される一端にばね受部
を有しており、他端が第一のばね受及びフランジ部のう
ち他方に固定される連結部材と、軸方向において両ばね
受間に配置され、一方の流体送通管の他方の流体送通管
への軸方向の相対的な接近変位においてこれを弾性的に
規制する第一の弾性部材と、一方の流体送通管の他方の
流体送通管からの軸方向の相対的な離反変位においてこ
れを弾性的に規制するように、第一のばね受及びフラン
ジ部のうち前記一方と連結部材のばね受部との間に配置
される第二の弾性部材とを具備して、連結すべき両流体
送通管の管端部間に設けられる。この様な例においては
、球面案内装置の凸球面部材は、好ましくは、第一の弾
性部材により凹球同座に押しつけられるように、軸方向
において凹球同座と第二のばね受との間に配置される。The elastic device of the present invention is provided between the tube ends of both fluid communication tubes to be connected. In the joint of the present invention, there is provided a concave spherical seat fixed to the end of one fluid delivery pipe, and a convex spherical face provided at the end of the other fluid delivery pipe so as to be seated on the concave spherical seat. When a spherical guide device is provided between the tube ends and guides the relative angular displacement of one fluid conveyance tube with respect to the other fluid conveyance tube, one of the elastic devices of the present invention An example is a flange fixed to the pipe end of one fluid delivery pipe, a first spring bearing fixed to the pipe end of the other fluid delivery pipe, and one of the flange parts in the axial direction. a second spring bearing disposed between a part fixed to the pipe end of the fluid communication pipe and a part fixed to the pipe end of the other fluid delivery pipe of the first spring bearing; a connecting member having a spring receiver at one end disposed on one side of the first spring receiver and the flange, and the other end of which is fixed to the other of the first spring receiver and the flange; a first elastic member disposed between both spring receivers in the axial direction and elastically regulating relative approach displacement of one fluid passage pipe to the other fluid passage pipe in the axial direction; A spring between said one of the first spring receiver and the flange portion and the connecting member so as to elastically restrict the relative separation displacement in the axial direction of the fluid conveyance tube from the other fluid conveyance tube. and a second elastic member disposed between the receiving part and the second elastic member, which is provided between the pipe ends of both fluid communication pipes to be connected. In such an example, the convex spherical member of the spherical guide device is preferably pressed between the concave spherical seat and the second spring bearing in the axial direction so as to be pressed against the concave spherical seat by the first elastic member. placed between.
更に本例においては、フランジ部を直接一方の流体送通
管の管端部に固着して固定しても良いが、好ましくは、
凹球同座から延設させてフランジ部を形成して、凹球同
座を介してフランジ部を一方の流体送通管の管端部に固
定する。Furthermore, in this example, the flange portion may be directly fixed to the pipe end of one of the fluid communication pipes, but preferably,
A flange portion is formed extending from the concave ball seat, and the flange portion is fixed to the tube end of one of the fluid communication tubes via the concave ball seat.
一方、上述のような球面案内装置が管端部間に設けられ
ない場合には、本発明の弾性装置の一つの例は、一方の
流体送通管の管端部に固定される第一のばね受と、他方
の流体送通管の管端部に固定される第二のばね受と、軸
方向において第一及び第二のばね受のうちいずれか一方
の側に配置される一端にはね受部を有しており、他端が
第一及び第二のばね受のうち他方に固定される連結部材
と、一方の流体送通管の他方の流体送通管への軸方向の
相対的な接近変位においてこれを弾性的に規制すべく、
軸方向において両ばね受間に配置される第一の弾性部材
と、一方の流体送通管の他方の流体送通管からの軸方向
の相対的な離反変位においてこれを弾性的に規制すべく
、第一及び第のばね受のうち前記一方と連結部材のばね
受部との間に配置される第二の弾性部材とを具備して、
連結ずべき両流体送通管の管端部間に設けられる。On the other hand, when the above-mentioned spherical guide device is not provided between the tube ends, one example of the elastic device of the present invention is a first elastic device fixed to the tube end of one fluid communication tube. a spring receiver, a second spring receiver fixed to the pipe end of the other fluid communication pipe, and one end disposed on one side of the first and second spring receivers in the axial direction; a connecting member having a spring bearing portion, the other end of which is fixed to the other of the first and second spring bearings, and an axial relative position of one fluid passage pipe to the other fluid passage pipe; In order to elastically restrict this approach displacement,
A first elastic member disposed between both spring receivers in the axial direction, and a first elastic member arranged in the axial direction to elastically restrict the relative separation displacement of one fluid communication pipe from the other fluid communication pipe in the axial direction. , a second elastic member disposed between the one of the first and second spring receivers and the spring receiver of the connecting member,
It is provided between the pipe ends of both fluid communication pipes to be connected.
本発明の伸縮自在なｆｆＪ状＃は、両流体送通管の管端
部間からの流体の漏出を阻止するものであれば、コム製
、蛇腹状等いずれの形態であっても良いか、送通される
流体が比較的高温の排気ガスの場合には、耐熱縁布製又
は金属パイプ製を好ましい例として提示し得る。本発明
の筒状体は、それを形成する材料自体の伸縮性により伸
縮性が与えられたものであっても良いが、一方、上記の
ように蛇腹状に形成して伸縮性を有しせしめるようにし
ても良く、更には長さにおいて余裕を持った可撓性のｌ
［伸縮性の筒状体を準備して本発明の伸縮自在な筒状体
を形成しても良い。The stretchable ffJ-shaped # of the present invention may be in any form, such as com-made or bellows-shaped, as long as it prevents leakage of fluid from between the pipe ends of both fluid communication pipes. If the fluid to be conveyed is relatively high temperature exhaust gas, heat-resistant edge cloth or metal pipes can be suggested as preferred examples. The cylindrical body of the present invention may have elasticity due to the elasticity of the material itself forming it, but on the other hand, it may be formed into a bellows shape to have elasticity as described above. In addition, it is possible to use a flexible l with ample length.
[A stretchable cylindrical body may be prepared to form the stretchable cylindrical body of the present invention.
本発明の筒状体は、一端が一方の流体送通管の管端部側
に、他端が他方の流体送通管の管端部側に夫々連結され
る。球面案内装置が設けられる本発明の一つの例では、
筒状体の一端は、この球面案内装置を介して一方の流体
送通管の管端部側に連結され、球面案内装置を具備しな
い本発明の一つの例では、筒状体の一端は、一方の流体
送通管の管端部に直接固定されて一方の流体送通管の管
端部側に連結される。もっとも、球面案内装置が設けら
れる本発明の一つの例でも、両流体送通管の管端部間か
らの流体がこの球面案内装置を介して漏出する虞れがあ
る場合には、筒状体の一端を一方の流体送通管の管端部
に直接固定させて一方の流体送通管の管端部側に連結し
ても良く、この場合筒状体は一体物であっても良いが、
それに限らず、例えば、球面案内装置を介する流体の漏
出を阻止する筒状部と、他の部分での両流体送通管の管
端部間からの流体の漏出を阻止する筒状部との二部材を
具備する筒状体であっても良く、この場合、両筒状部間
に他の部材が介在していても良い。このように本発明の
筒状体においては、一端が、他の部材を介して一方の流
体送通管の管端部側に連結されても良く、或いは直接連
結されても良いのであって、要は、両流体送通管の管端
部間からの流体の漏出を阻止するように、両端が夫々流
体送通管の管端部側に連結されていれば良い。The cylindrical body of the present invention has one end connected to the tube end side of one fluid conveyance tube, and the other end connected to the tube end side of the other fluid conveyance tube. In one example of the invention in which a spherical guide device is provided,
One end of the cylindrical body is connected to the tube end side of one of the fluid communication tubes via this spherical guide device, and in one example of the present invention that does not include the spherical guide device, one end of the cylindrical body is It is directly fixed to the tube end of one fluid conveyance tube and connected to the tube end side of one fluid conveyance tube. However, even in one example of the present invention in which a spherical guide device is provided, if there is a risk that fluid from between the pipe ends of both fluid communication tubes may leak through the spherical guide device, the cylindrical One end may be directly fixed to the pipe end of one fluid delivery pipe and connected to the pipe end side of one fluid delivery pipe, and in this case, the cylindrical body may be an integral piece. ,
For example, the cylindrical part that prevents the leakage of fluid through the spherical guide device and the cylindrical part that prevents the leakage of fluid from between the pipe ends of both fluid communication pipes in other parts are not limited to this. The cylindrical body may include two members, and in this case, another member may be interposed between the two cylindrical parts. As described above, in the cylindrical body of the present invention, one end may be connected to the tube end side of one fluid communication tube via another member, or may be directly connected, In short, it is sufficient that both ends are respectively connected to the tube end sides of the fluid conveyance tubes so as to prevent leakage of fluid from between the tube ends of the fluid conveyance tubes.
更に、本発明の筒状体は、弾性装置の内側に配置されて
いても良い力く、これに対して放熱等の問題がない場合
には弾性装置等全てを覆ってこれらの外側に配置されて
いても良いのである。Further, the cylindrical body of the present invention may be placed inside the elastic device, but if there are no problems such as heat dissipation, the cylindrical body of the present invention may be placed outside the elastic device, covering all of them. It's okay to stay.
本発明の継手は、軸方向案内装置を具備していても良い
場合かある。軸方向案内装置は、一つの例では、スベリ
材を具備して構成され、スベリ材としζは、円筒状メは
リング状であっても良く、或いはこのように環状に連続
している必要はなく、流体送通管の周方向に沿って不連
続に均等に配置される複数本の棒状スベリ材からなって
いても良い
更に本発明によれば前記目的は、一方の排気管の管端部
には該端部に向かって朝顔状に拡径する凹球面シール座
と該凹球面シール座と連続するフランジ部とが一体的に
設けられており、他方の排気管には前記一方の排気管と
相対向する管端部外周面に前記凹球面シール座に対応す
る凸球面部を持つシールリングとフランジ部を有し該シ
ールリングを前記凹球面シール座側に押圧する押圧ブロ
ックとが該他方の排気管の軸方向に摺動可能に配されて
おり、前記他方の排気管と該他方の排気管の管端部外周
面の押圧ブロックとの摺動部には該摺動部を覆って軸方
向に伸縮自在の耐熱織布からなる筒状カバーが配されて
おり、一方の排気管と他方の排気管とは該一方の排気管
のフランジ部と押圧ブロックのフランジ部と該他方の排
気管に固設された連結部材とに係合して配された一対の
ボルトとコイルばねとからなる押圧手段により互いに連
結されていることを特徴とする排気管継手によっても遠
戚される。The joint of the invention may in some cases be equipped with an axial guide device. In one example, the axial guide device includes a sliding material, and the sliding material ζ may have a cylindrical shape or a ring shape, or it does not need to be continuous in an annular shape. In addition, according to the present invention, the above object may be made of a plurality of rod-shaped sliding members arranged discontinuously and evenly along the circumferential direction of the fluid conveying pipe. is integrally provided with a concave spherical seal seat whose diameter expands in a morning glory shape toward the end, and a flange portion continuous with the concave spherical seal seat, and the other exhaust pipe is connected to the one exhaust pipe. a seal ring having a convex spherical part corresponding to the concave spherical seal seat on the outer circumferential surface of the tube end facing opposite to the other; and a press block having a flange part and pressing the seal ring toward the concave spherical seal seat. is arranged so as to be slidable in the axial direction of the exhaust pipe, and the sliding part between the other exhaust pipe and the pressing block on the outer peripheral surface of the pipe end of the other exhaust pipe is provided with a sliding part covering the sliding part. A cylindrical cover made of a heat-resistant woven fabric that is stretchable in the axial direction is disposed, and one exhaust pipe and the other exhaust pipe are connected to each other by a flange portion of the one exhaust pipe, a flange portion of the pressing block, and the other exhaust pipe. It is also distantly related to an exhaust pipe joint, which is characterized in that they are connected to each other by a pressing means consisting of a pair of bolts and a coil spring, which are arranged to engage with a connecting member fixed to a pipe.
［作用］
本発明によれば、弾性装置が一方の流体送通管に対する
他方の流体送通管の相対的な軸方向の接近及び離反変位
を弾性的に規制する結果、例えば一方の流体送通管の軸
方向の振動は、減衰されて他方の流体送通管に伝達され
る。そして、伸縮自在な筒状体が設けられているため、
軸方向の振動下でも両流体送通管の管端部間からの流体
の漏出を防止することができる。[Operation] According to the present invention, as a result of the elastic device elastically regulating the relative axial approach and separation displacement of one fluid passage pipe to the other fluid passage pipe, for example, one fluid passage Axial vibrations of the tube are damped and transmitted to the other fluid delivery tube. And, since it is equipped with a cylindrical body that can be expanded and contracted,
Even under vibration in the axial direction, leakage of fluid from between the pipe ends of both fluid communication pipes can be prevented.
以下、本発明を、図面に示す自動車の排気管に適用され
ソコ場合の具体例に基づいて更に詳細に説明する。これ
により前記発明及び更に他の発明が明瞭となるであろう
９
尚、本発明はこれら具体例に何等限定されないのである
。Hereinafter, the present invention will be explained in more detail based on a specific example in which it is applied to an automobile exhaust pipe shown in the drawings. This will make the above invention and other inventions clear.9 Note that the present invention is not limited to these specific examples in any way.
［具体例］
第１図において、一方の流体送通管である下流側（大気
側〉排気管１の管端部には、この管端部に向かって拡径
する凹球同座としての凹球面シール座２と、凹球面シー
ル座２の開口部周縁にフランジ部３とが一体的に設けら
れている。[Specific example] In Fig. 1, the downstream side (atmosphere side) exhaust pipe 1, which is one of the fluid conveying pipes, has a concave concave ball co-located with a concave sphere that expands in diameter toward the pipe end. A spherical seal seat 2 and a flange portion 3 are integrally provided around the opening of the concave spherical seal seat 2.
他方の流体送通管である上流側（エンジン側）排気管４
の排気管１と相対向する管端部外周面には、軸方向案内
装置を構成するスベリ材５が固着されており、スベリ材
５を介して排気管４の管端部外周面には、゛筒体６が排
気管４の軸方向−に関して摺動自在に配されている。尚
、スベリ材５を筒体６の内周面に固着して筒体６を排気
管４の軸方向に関して摺動自在に配しても良い。Upstream side (engine side) exhaust pipe 4 which is the other fluid communication pipe
A sliding material 5 constituting an axial guide device is fixed to the outer circumferential surface of the end of the exhaust pipe 4 that faces the exhaust pipe 1. The cylindrical body 6 is arranged to be slidable in the axial direction of the exhaust pipe 4. Incidentally, the sliding material 5 may be fixed to the inner peripheral surface of the cylinder 6 so that the cylinder 6 is slidably disposed in the axial direction of the exhaust pipe 4.
凹球面シール座２に対応する凸球面部７を有するシール
リング８は、筒体６の外周面に嵌装されている。シール
リング８及びスベリ材５としては、固体潤滑剤を分散し
た焼結金属及びセラミック等の耐熱性を有する材料から
なる摺動材料、さらにはステンレスの線材を織ったり編
んだりして得られるワイヤーメツシュと彫版黒鉛シート
を重ね合わせて底形した摺動材料などが使用されて好適
である。A seal ring 8 having a convex spherical surface portion 7 corresponding to the concave spherical seal seat 2 is fitted onto the outer peripheral surface of the cylindrical body 6 . As the seal ring 8 and sliding material 5, sliding materials made of heat-resistant materials such as sintered metals and ceramics in which a solid lubricant is dispersed, and wire mesh obtained by weaving or knitting stainless steel wires can be used. It is preferable to use a sliding material whose bottom is formed by overlapping a sheet and an engraved graphite sheet.
シールリング８と隣接して筒体６外周面に嵌装固定され
たばね受でもある押圧ブロック９は、円筒部１０と円筒
部１０と一体に円筒部１０の一端から外方に拡径するフ
ランジ部］１とを備えている。The pressing block 9, which is also a spring receiver and is fitted and fixed to the outer peripheral surface of the cylindrical body 6 adjacent to the seal ring 8, has a cylindrical portion 10 and a flange portion whose diameter expands outward from one end of the cylindrical portion 10 integrally with the cylindrical portion 10. ]1.
伸縮自在の筒状体である筒状カバー１２は、排気管４の
管端部とスベリ材５との摺動部を覆って、一端が筒体６
に他端が排気管４の管端部に夫々締結バンド１３及び１
４により固定されて排気管４と筒体６との間に配されて
いる。本例では高温の排気ガスを対象としているため、
筒状カバー１２は、耐熱織布製であり、この耐熱織布と
しては、ガラス等のセラミック繊維を織り、シリコンゴ
ム或いは耐熱性樹脂を塗布若しくは含浸したものが使用
されて好適である。また、凹球面シール座２とシールリ
ング８とからなる球面案内装置を具備する本例では、筒
状体としての筒状カバー１２は、一端が筒体６及びシー
ルリング８を介して排気管１の管端部に間接的に連結さ
れて設けられている。The cylindrical cover 12, which is a retractable cylindrical body, covers the sliding part between the end of the exhaust pipe 4 and the sliding material 5, and has one end attached to the cylindrical body 6.
The other end is attached to the pipe end of the exhaust pipe 4 with fastening bands 13 and 1, respectively.
4 and is arranged between the exhaust pipe 4 and the cylinder body 6. In this example, we are targeting high-temperature exhaust gas, so
The cylindrical cover 12 is made of a heat-resistant woven fabric, and it is preferable to use a fabric woven from ceramic fibers such as glass and coated or impregnated with silicone rubber or heat-resistant resin. Further, in this example, which is equipped with a spherical guide device consisting of a concave spherical seal seat 2 and a seal ring 8, the cylindrical cover 12 as a cylindrical body has one end connected to the exhaust pipe through the cylindrical body 6 and the seal ring 8. The pipe is indirectly connected to the end of the pipe.
放熱用の窓１５が周方向に複数個設けられた円筒部１６
と円筒部１６の一端開口側から外方に拡径するはね受］
７と円筒部１６の他端から内方に縮径し排気管４の外周
面に固定される固定部１８からなるばね受支持部材１つ
は、円筒部１６を排気管１側に向け、はね受１７を筒体
６に嵌合固定された押圧ブロック９のフランジ部１１に
隣接させ、固定部１８において排気管４の管端部外周面
に固定されている。A cylindrical portion 16 provided with a plurality of windows 15 for heat radiation in the circumferential direction.
and a spring holder whose diameter expands outward from the opening side of one end of the cylindrical portion 16]
7 and a fixing part 18 that reduces in diameter from the other end of the cylindrical part 16 and is fixed to the outer peripheral surface of the exhaust pipe 4. The spring receiver 17 is placed adjacent to the flange portion 11 of the pressing block 9 that is fitted and fixed to the cylinder body 6, and is fixed to the outer peripheral surface of the end portion of the exhaust pipe 4 at the fixing portion 18.
ばね受部として頭部２０を有し、連結部材としての頭付
きボルト２１の一端は、ナツト２２等により排気管１の
フランジ部３に固定され、他端は、押圧ブロック９のフ
ランジ部１１及びばね受支持部材１９のばね受１７を貫
通して配されている。It has a head 20 as a spring receiving part, and one end of a headed bolt 21 as a connecting member is fixed to the flange part 3 of the exhaust pipe 1 with a nut 22 or the like, and the other end is fixed to the flange part 11 of the pressing block 9 and It is arranged to penetrate the spring receiver 17 of the spring receiver support member 19.
排気管１に対する排気管４の相対的な軸方向の離反を弾
性的に規制する弾性部材としてのコイルばね２３は、ボ
ルト２１の周りを取り囲んでばね受１７と頭部２０との
間に配されており、排気管１に対する排気管４の相対的
な軸方向の接近を弾性的に規制する弾性部材としてのコ
イルばね２４は、ボルト２１の周りを収り囲んでばね受
１７とフランジ部１１との間に配されている
このように本例では、一方の流体送通管に対する他方の
流体送通管の相対的な軸方向の接近及び離反変位を弾性
的に規制すべく、両流体送通管の管端部間に設けられる
弾性装置は、フランジ部３、押圧ブロック９、ばね受支
持部材１９、ボルト２１、コイルばね２３及び２４から
形成されており、凸球面部材としてのシールリング８は
、コイルばね２４により凹球面シール座２に押しつけら
れるように、軸方向において球面シール座２と押圧ブロ
ック９との間に配置されている
このように構成される本発明の排気管用の継手３０では
再排気管１．４に生しる相対角変位は、コイルばね２４
により付勢されたシールリング８と凹球面シール座２と
からなる球面案内装置により許容される。そして再排気
管１．４に生しる相対軸方向変位は、スベリ材５により
案内され、筒状カバー１２の伸縮により許容される。こ
れらにより一方の排気管、例えば排気管４に生じる振動
は、排気管１には伝達されなくなる。また、排気管４外
周面の摺動部のクリアランスから漏出する排気ガスは、
筒状カバー１２により密閉される。A coil spring 23 serving as an elastic member that elastically restricts the relative separation of the exhaust pipe 4 from the exhaust pipe 1 in the axial direction is arranged around the bolt 21 and between the spring receiver 17 and the head 20. A coil spring 24, which is an elastic member that elastically restricts the relative approach of the exhaust pipe 4 to the exhaust pipe 1 in the axial direction, surrounds the bolt 21 and connects the spring receiver 17 and the flange portion 11. In this example, in order to elastically restrict the relative axial approach and separation displacement of one fluid communication pipe to the other fluid communication pipe, both fluid communication pipes are disposed between The elastic device provided between the ends of the tube is formed of a flange portion 3, a pressing block 9, a spring receiver support member 19, a bolt 21, and coil springs 23 and 24, and a seal ring 8 as a convex spherical member In the exhaust pipe joint 30 of the present invention, which is arranged in the axial direction between the spherical seal seat 2 and the pressing block 9 so as to be pressed against the concave spherical seal seat 2 by the coil spring 24. The relative angular displacement that occurs in the re-exhaust pipe 1.4 is caused by the coil spring 24
This is allowed by the spherical guide device consisting of the seal ring 8 and the concave spherical seal seat 2, which are biased by the spherical surface. The relative axial displacement occurring in the re-exhaust pipe 1.4 is guided by the sliding material 5 and allowed by the expansion and contraction of the cylindrical cover 12. As a result, vibrations generated in one of the exhaust pipes, for example, the exhaust pipe 4, are no longer transmitted to the exhaust pipe 1. In addition, exhaust gas leaking from the clearance of the sliding part on the outer peripheral surface of the exhaust pipe 4 is
It is sealed by a cylindrical cover 12.
更に、再排気管］、４に生しる相対角変位及び相対軸方
向変位に起因する応力は、コイルばね２３．２４及びボ
ルト２１などからなる弾性装置によって吸収される。即
ち、排気管１に対して排気管４が中立位置から相対的に
接近すると、コイルばね２４がより縮む結果、コイルば
ね２４は、排気管１に対して排気管４を相対的に離反さ
せようとし、逆に、排気管１に対して排気管４が中立位
置から相対的に離反すると、コイルばね２３がより縮む
結果、コイルばね２３は、排気管１に対して排気管４を
相対的に接近させようとし、こうしてコイルばね２３．
２４は、夫々排気管１．４の相対的な軸方向の離反及び
接近変位を弾性的に規制する。再排気管１，２に生しる
相対角変位のときも概略同様であるが、ある方向の角変
位の場合、軸対象に設けられた一つの例ては、コイルば
ね２３．２４は互いに逆の作用をする。Furthermore, the stress caused by the relative angular and axial displacements occurring in the re-exhaust pipe], 4 is absorbed by the elastic device consisting of the coil springs 23, 24, the bolts 21, etc. That is, when the exhaust pipe 4 approaches the exhaust pipe 1 from the neutral position, the coil spring 24 contracts more, and as a result, the coil spring 24 tends to move the exhaust pipe 4 away from the exhaust pipe 1. On the other hand, when the exhaust pipe 4 moves away from the neutral position relative to the exhaust pipe 1, the coil spring 23 contracts more. The coil spring 23.
24 elastically restrict the relative axial displacement of the exhaust pipe 1.4 toward and away from the exhaust pipe 1.4, respectively. The same applies to relative angular displacements occurring in the re-exhaust pipes 1 and 2, but in the case of angular displacements in a certain direction, the coil springs 23 and 24, which are provided axially symmetrically, are opposite to each other. has the effect of
そして、このような弾性装置によれば、軸方向及び角変
位に対し、復元力が作用する結果、常に中立位置に戻ず
ことかでき、使用中排気管］に排気管４が必要以上に挿
入されたままの状態となることを避けることができる。According to such an elastic device, as a result of the restoring force acting against axial and angular displacement, it is possible to always return to the neutral position and prevent the exhaust pipe 4 from being inserted into the exhaust pipe more than necessary during use. It is possible to avoid being left in the same state as before.
また、軸方向及び角方向の両方向における大変位は、コ
イルばね２３又は２４における隣接するばね部分相互の
密着に至る結果、大変位において弾性的規制から剛性的
規制を生起せしめることができ、管端部同志の衝突等を
避けることができる。Also, large displacements in both the axial and angular directions lead to close contact between adjacent spring parts of the coil spring 23 or 24, which can cause rigid restriction to occur from elastic restriction at large displacements, and the tube end Conflicts between members can be avoided.
更に継手３０においては、軸方向の剛性は、大略コイル
ばわ２３．２４のばね定数と筒状カバー１２のばね定数
とにより決定されるので、コイルばね２３．２４のばね
定数を種々の値に設定することにより任意の剛性を有し
た継手３０を提供し得、設計の自由度が大きいのである
。加えて、筒状カバー１２のばね定数に比較してコイル
ばね２３．２４のばね定数が大きいと、継手３０の軸方
向の剛性をコイルばね２３．２４のはわ定数のみて一義
的或いは支配的に決定し得る。このことは、所望の軸方
向の剛性を得るに際してコイルばね２３．２４のばね定
数のみでそれを決定し得る結果、本例のようにばね定数
の小さい筒状カバー１２を使用することかできることを
意味し、結果として、軸方向サイズがコンパクトな継手
３０とし得る９また、本例の弾性装置によれば、軸方向
変位の規制に加えて角変位の規制をも行うため、筒状体
として本例のように極めて低剛性の筒状カバー１２を用
いることがてき、耐久性に優れた継手とし得る。Furthermore, in the joint 30, the stiffness in the axial direction is approximately determined by the spring constant of the coil spring 23.24 and the spring constant of the cylindrical cover 12, so the spring constant of the coil spring 23.24 can be set to various values. By setting the joint 30, it is possible to provide a joint 30 with arbitrary rigidity, and there is a large degree of freedom in design. In addition, if the spring constant of the coil spring 23.24 is larger than the spring constant of the cylindrical cover 12, the stiffness of the joint 30 in the axial direction is determined solely by the stiffness of the coil spring 23.24. can be determined. This means that the desired axial stiffness can be determined only by the spring constants of the coil springs 23 and 24, and as a result, it is possible to use the cylindrical cover 12 with a small spring constant as in this example. As a result, the joint 30 can be made compact in axial size.9 Furthermore, according to the elastic device of this example, in addition to regulating axial displacement, angular displacement is also regulated. As in the example, the cylindrical cover 12 with extremely low rigidity can be used, and the joint can have excellent durability.
尚、コイルは゛ね２３と２４とのばね定数は、同してあ
っても良いが、これに代えて互いに異なっていでも良い
ことはもちろんであり、また、コイルばね２３．２４と
しては、両方或いは片方のみ不等ピッチのばね又は後述
する円錐ばねを使用しても良く、隣接するコイル部分が
縮みにおいて互いに当接しないように設計された円錐ば
ねを使用すると、大変位を十分滑らかに、換言すれば弾
性的に最後まで規制することができるので、好ましい場
合がある。It should be noted that the spring constants of the coil springs 23 and 24 may be the same, but they may also be different from each other. Only springs with unequal pitches or conical springs as described below may be used; using a conical spring designed so that adjacent coil sections do not abut each other in contraction will ensure that large displacements are sufficiently smooth, in other words This may be preferable because it can be elastically regulated to the end.
ところで第１図に示す例では筒体６を用いて構成したが
、第２図に示すように、筒体６を用いることなく、排気
管４の管端部外周面上をシールリング８及び押圧ブロッ
ク９が摺動する構成にしても良い。ここで、押圧ブロッ
ク９は、円筒部１０と一体に円筒部１０の一端から外方
に拡径するフランジ部１１と円筒部１０のフランンジ部
１１側に円筒部１０と一体的に連なる円筒突出部４１と
を備えており、円筒突出部４１の内周面にスベリ部材５
が嵌装保持されており、円筒突出部４１に筒状カバー１
２の一端が固定されている。By the way, in the example shown in FIG. 1, the cylinder body 6 is used, but as shown in FIG. The block 9 may be configured to slide. Here, the pressing block 9 includes a flange portion 11 whose diameter expands outward from one end of the cylindrical portion 10 integrally with the cylindrical portion 10, and a cylindrical protrusion portion integrally continuous with the cylindrical portion 10 on the flange portion 11 side of the cylindrical portion 10. 41, and a sliding member 5 is provided on the inner peripheral surface of the cylindrical protrusion 41.
is fitted and held, and the cylindrical cover 1 is fitted onto the cylindrical protrusion 41.
One end of 2 is fixed.
このように構成された継手５０でも前記と同様に作用す
る。The joint 50 configured in this manner also functions in the same manner as described above.
前記例では筒状体として中間部が膨らんた゛筒状カバー
１２を用いたが、これに代えて第３図に示すように筒状
体として蛇腹状に曲折された筒状カバー６０を用いて本
発明の継手６１を構成しても良い。また、図示されてい
ないが、筒状カバ−６０内部の各凹所に骨部材として金
属リングを適用して蛇腹形状を維持するようにしても良
い。継手６１においては、また、押圧ブロック９に代え
て、筒体６に固定された筒体６２と筒体６２に固定され
たはね受６３とか適用されており、筒体６２の拡径部６
４でシールリング８を受は止めるようにしても良い。In the above example, the cylindrical cover 12 with a bulged middle part was used as the cylindrical body, but instead of this, as shown in FIG. The joint 61 of the invention may also be configured. Further, although not shown, a metal ring may be applied as a rib member to each recess inside the cylindrical cover 60 to maintain the bellows shape. In the joint 61, instead of the pressing block 9, a cylinder 62 fixed to the cylinder 6 and a spring catch 63 fixed to the cylinder 62 are used, and the enlarged diameter part 6 of the cylinder 62 is used.
4 may be used to stop the seal ring 8 from being received.
更に前記例では、筒状体として比較的可撓性の筒状カバ
ー１２．６０を用いたが、本発明はこれに限定されず、
例えば、第４図に示すように比較的剛性の蛇腹状の金属
パイプ７０でもって伸縮自在の筒状体を構成して本発明
の継手７１を形成しても良い。尚、金属パイプ７０の両
端は、締付はバンド又は溶接などにより排気管４及び筒
体６に夫々固定する。Further, in the above example, a relatively flexible cylindrical cover 12.60 was used as the cylindrical body, but the present invention is not limited to this.
For example, as shown in FIG. 4, the joint 71 of the present invention may be formed by constructing a telescopic cylindrical body using a relatively rigid bellows-shaped metal pipe 70. Note that both ends of the metal pipe 70 are fixed to the exhaust pipe 4 and the cylindrical body 6, respectively, by tightening bands or welding.
弾性装置の弾性部材として前記例では全長に亘って径の
等しいコイルばね２３．２４を使用したが、第５図に示
すように円錐コイルばね８０．８１を使用して本発明の
継手８２を構成してもよい。In the above example, coil springs 23 and 24 having the same diameter over the entire length were used as the elastic members of the elastic device, but as shown in FIG. 5, the joint 82 of the present invention is constructed using conical coil springs 80 and 81. You may.
また、第６図に示すように頭付きボルト２１の一端をば
ね受１７にナツト２２等で固定し、頭部２０とフランジ
部３との間にコイルばね２３を設けて継手９０を構成し
てもよく、継手９０でも前記と同様に作用する。Further, as shown in FIG. 6, one end of the headed bolt 21 is fixed to the spring receiver 17 with a nut 22 or the like, and a coil spring 23 is provided between the head 20 and the flange portion 3 to form a joint 90. The joint 90 also functions in the same manner as described above.
第７図に示す本発明の継手９５は、球面案内装置を省略
したものであり、ばね受６３を排気管１に直接嵌合固定
すると共にばね受６３に対向して排気管１に同しくばね
受９６を嵌合固定し、排気管１と４との重合部にスベリ
材５を配して形成したものである。継手９５においては
、スベリ材５が排気管１に固定される場合には、スベリ
材５と排気管４との間に、スベリ材５が排気管４に固定
される場合には、スベリ材５と排気管１との間に若干の
隙間を設け、相対角変位を許容するようにしても良い。In the joint 95 of the present invention shown in FIG. 7, the spherical guide device is omitted, and the spring receiver 63 is directly fitted and fixed to the exhaust pipe 1, and the spring receiver 63 is directly fitted and fixed to the exhaust pipe 1. It is formed by fitting and fixing a receiver 96 and disposing a sliding material 5 at the overlapping portion of the exhaust pipes 1 and 4. In the joint 95, when the sliding material 5 is fixed to the exhaust pipe 1, there is a space between the sliding material 5 and the exhaust pipe 4, and when the sliding material 5 is fixed to the exhaust pipe 4, there is a sliding material 5 between the sliding material 5 and the exhaust pipe 4. A slight gap may be provided between the exhaust pipe 1 and the exhaust pipe 1 to allow relative angular displacement.
この隙間からの排気ガスの漏出は、一端か直接排気管１
の管端部に連結固定された筒状カバー６０により阻止さ
れる。尚、スベリ材５を弾性部材等或いは断面半球状の
リンクスベリ材により形成すると、この相対的角変位を
許容する隙間は特に設けなくても相対角変位を許容する
ことができる。本例では排気管１に固定されるばね受を
ばね受６３と９６とので二部材で構成したが、これに代
えてばね受６３と９６とを一体物で形成しても良い。Exhaust gas leaks from this gap either from one end or directly from the exhaust pipe 1.
This is blocked by a cylindrical cover 60 that is connected and fixed to the end of the tube. Note that if the sliding material 5 is formed of an elastic member or the like or a link sliding material having a hemispherical cross section, the relative angular displacement can be tolerated without providing any particular gap for allowing the relative angular displacement. In this example, the spring receiver fixed to the exhaust pipe 1 is constructed of two members, the spring receivers 63 and 96, but instead of this, the spring receivers 63 and 96 may be formed as one piece.
以−Ｌの例では連結部材を頭付きボルト２１で構成した
が、第８図に示すように、環状の一端にばね受部１００
を有するカップ状部材１０１で連結部材を形成し、カッ
プ状部材１０１の環状の他端］０２をボルト１０３及び
ナツト１０４によりフランジ部３（、こ固定して本発明
の継手１．１０を形成しても良い。継手］］０ではまた
、筒体６２が省かれてシールリンク８に密接するばね受
６３が筒体６に溶接などにより直接固定されており、加
えて排気管■、４の周りに複数個配置されるニｉイルば
ね２３及び２４の代わりに、夫々が排気管１．４の周方
向に沿って巻かれた一対のコイルばね１１１及び１１２
がばね受１００と１７との間及びばわ受］７と６３との
間に夫々配置されており、このような簡単な構成の継手
１１０ても前述と同様に動作するのである。In the example shown in L below, the connecting member is composed of a headed bolt 21, but as shown in FIG.
A coupling member is formed by a cup-shaped member 101 having In the case of the joint ] ] 0, the cylinder body 62 is omitted and the spring receiver 63 that is in close contact with the seal link 8 is directly fixed to the cylinder body 6 by welding or the like. A pair of coil springs 111 and 112 each wound along the circumferential direction of the exhaust pipe 1.4 is used instead of the plural coil springs 23 and 24 arranged in the
are arranged between the spring receivers 100 and 17 and between the spring receivers 7 and 63, respectively, and the joint 110 having such a simple structure operates in the same manner as described above.
更に第９図に示すように、ばね受支持部材１２０にばね
受］２１を溶接などにより取り付け、ばね受１２１と６
３との間には、排気管ｌ、４の周方向に沿って巻かれた
コイルばね１１２を、フランジ部３とボルト２］の頭部
２０との間には、ボルト２１を取り囲んで巻かれたコイ
ルばね２３を夫々配置してなる弾性装置を具備して本発
明の継手１３０を構成しても良く、本例及び第８図に示
す例からも明らかであるように、本発明の継手において
は、連結部材は、頭付きボルト２］に限定されず、また
押圧ブロック９．６３を貫通して配置される必要もなく
、加えて弾性部材の一例としてのコイルばねは種々の形
態のものを適用し得るのである。Furthermore, as shown in FIG.
3, a coil spring 112 is wound along the circumferential direction of the exhaust pipe 1 and 4, and a coil spring 112 is wound around the bolt 21 between the flange portion 3 and the head 20 of the bolt 2. The joint 130 of the present invention may include an elastic device formed by arranging coil springs 23, respectively.As is clear from this example and the example shown in FIG. The connecting member is not limited to the headed bolt 2], nor does it need to be disposed through the pressing block 9.63, and in addition, the coil spring as an example of the elastic member can be of various forms. It can be applied.
［発明の効果１
以上のように本発明によれば、弾性装置により一方の流
体送通管に対する他方の流体送通管の相対的な軸方向の
接近及び離反変位を弾性的に規制する結果、振動の伝達
を所定に低減し得て、且つ所望の剛性をもって両流体送
通管を連結しえ、それ故、比較的可撓性に優れた筒状体
を使用することができるため耐久性の向上を図り得る。[Effect of the Invention 1] As described above, according to the present invention, as a result of elastically restricting the relative axial approach and separation displacement of one fluid delivery pipe to the other fluid delivery pipe by the elastic device, It is possible to reduce the transmission of vibration to a certain degree, and also to connect both fluid communication pipes with the desired rigidity, and therefore, it is possible to use a relatively flexible cylindrical body, which improves durability. Improvements can be made.
また、本発明によれば、ばね定数の低い筒状体を適用し
得るため、筒状体の軸方向長を短くしえ、したがってコ
ンパクトな継手を提供し得る。Further, according to the present invention, since a cylindrical body having a low spring constant can be used, the axial length of the cylindrical body can be shortened, and therefore a compact joint can be provided.
更に、筒状体の損傷などの発生を低減し得るため、長期
に亘って流体の漏洩を確実に防止し得る。Furthermore, since the occurrence of damage to the cylindrical body can be reduced, fluid leakage can be reliably prevented over a long period of time.
第１図は、本発明の好ましい一具体例の断面図、第２図
は、本発明の好ましい他の一具体例の断面図、第３図は
、本発明の好ましい更に他の一具体例の断面図、第４図
は、本発明の好ましい第４の具体例の断面図、第５図は
、本発明の好ましい第５の具体例の断面図、第６図は、
本発明の好ましい第６の具体例の断面図、第７図は、本
発明の好ましい第７の具体例の断面図、第８図は、本発
明の好ましい第８の具体例の断面図、第９図は、本発明
の好ましい第９の具体例の断面図である。
１．４・排気管、 ３・・・フランジ部、 ９・・・押
圧ブロック、 １２・・筒状カバー、 ］６・・連結部
材、 ２１・・ボルト、 ２３．２４−・コイルばね。
＼FIG. 1 is a sectional view of a preferred embodiment of the present invention, FIG. 2 is a sectional view of another preferred embodiment of the invention, and FIG. 3 is a sectional view of yet another preferred embodiment of the invention. 4 is a cross-sectional view of a fourth preferred embodiment of the present invention, FIG. 5 is a cross-sectional view of a fifth preferred embodiment of the present invention, and FIG.
FIG. 7 is a cross-sectional view of a sixth preferred example of the present invention; FIG. 8 is a cross-sectional view of an eighth preferred example of the present invention; FIG. FIG. 9 is a sectional view of a ninth preferred embodiment of the present invention. 1.4 Exhaust pipe, 3 Flange portion, 9 Pressing block, 12 Cylindrical cover, ]6 Connecting member, 21 Bolt, 23.24 Coil spring. \
Claims (10)
手であって、一方の流体送通管に対する他方の流体送通
管の相対的な軸方向の接近及び離反変位を弾性的に規制
すべく、両流体送通管の隣接する管端部間に設けられる
弾性装置と、両流体送通管の隣接する管端部間からの流
体の漏出を阻止すべく、一端が一方の流体送通管の管端
部側に、他端が他方の流体送通管の管端部側に夫々連結
される伸縮自在な筒状体とを具備した流体送通管用継手
。(1) A joint for a plurality of fluid communication pipes arranged coaxially, which elastically controls the relative axial approach and separation displacement of one fluid communication pipe to the other fluid communication pipe. In order to prevent leakage of fluid from between the adjacent ends of both fluid communication tubes, an elastic device is provided between the adjacent ends of both fluid conveyance tubes in order to regulate the A joint for a fluid communication pipe, comprising a retractable cylindrical body, the other end of which is connected to the end of the other fluid communication pipe.
方の流体送通管の相対的な軸方向の接近及び離反変位を
案内する軸方向案内装置を具備した請求項１に記載の流
体送通管用継手。(2) The fluid according to claim 1, further comprising an axial guide device for guiding the relative axial approach and separation of one fluid delivery pipe to the other fluid delivery pipe between the pipe ends. Fittings for delivery pipes.
方の流体送通管の相対的角変位を案内する球面案内装置
を具備する請求項１又は２に記載の流体送通管用継手。(3) The joint for a fluid communication pipe according to claim 1 or 2, further comprising a spherical guide device for guiding relative angular displacement of one fluid communication pipe to the other fluid communication pipe between the pipe ends.
定される凹球面座と、この凹球面座に着座するように、
他方の流体送通管の管端部に設けられる凸球面部材とを
具備している請求項３に記載の流体送通管用継手。(4) The spherical guide device includes a concave spherical seat fixed to the pipe end of one of the fluid conveying tubes, and a concave spherical seat fixed to the concave spherical seat.
4. The fluid communication pipe joint according to claim 3, further comprising a convex spherical member provided at the tube end of the other fluid communication pipe.
れるフランジ部と、他方の流体送通管の管端部に固定さ
れる第一のばね受と、軸方向においてフランジ部の一方
の流体送通管の管端部に対する固定部と第一のばね受の
他方の流体送通管の管端部に対する固定部との間に配置
される第二のばね受と、軸方向において第一のばね受及
びフランジ部のうちいずれか一方側に配置される一端に
ばね受部を有しており、他端が第一のばね受及びフラン
ジ部のうちいずれか他方に固定される連結部材と、軸方
向において両ばね受間に配置され、一方の流体送通管の
他方の流体送通管への軸方向の相対的な接近変位におい
てこれを弾性的に規制する第一の弾性部材と、一方の流
体送通管の他方の流体送通管からの軸方向の相対的な離
反変位においてこれを弾性的に規制するように、第一の
ばね受及びフランジ部のうち前記一方と連結部材のばね
受部との間に配置される第二の弾性部材とを具備してお
り、凸球面部材は、第一の弾性部材により凹球面座に押
しつけられるように、軸方向において凹球面座と第二の
ばね受との間に配置されている請求項４に記載の流体送
通管用継手。(5) The elastic device includes a flange portion fixed to the tube end of one fluid conveyance tube, a first spring bearing fixed to the tube end of the other fluid conveyance tube, and a flange portion fixed to the tube end of the other fluid conveyance tube. a second spring bearing disposed between a part fixed to the pipe end of one of the fluid delivery pipes of the part and a part fixed to the pipe end of the other fluid delivery pipe of the first spring receiver; It has a spring receiver at one end which is arranged on one side of the first spring receiver and the flange in the direction, and the other end is fixed to the other of the first spring receiver and the flange. a connecting member disposed between both spring receivers in the axial direction, and elastically restricting the relative approach displacement of one fluid passage pipe to the other fluid passage pipe in the axial direction; an elastic member, and said one of the first spring receiver and the flange portion so as to elastically restrict the relative separation displacement in the axial direction of one fluid passage pipe from the other fluid passage pipe. and a second elastic member disposed between the spring receiving portion of the connecting member, and the convex spherical member has a concave shape in the axial direction so as to be pressed against the concave spherical seat by the first elastic member. 5. The fluid communication pipe joint according to claim 4, wherein the joint is disposed between the spherical seat and the second spring receiver.
、一方の流体送通管の管端部側に連結される請求項５に
記載の流体送通管用継手。(6) The fluid communication pipe joint according to claim 5, wherein the cylindrical body has one end directly fixed to the second spring receiver and is connected to the pipe end side of one fluid communication pipe.
れる第一のばね受と、他方の流体送通管の管端部に固定
される第二のばね受と、軸方向において第一及び第二の
ばね受のうちいずれか一方の側に配置される一端にばね
受部を有しており、他端が第一及び第二のばね受のうち
他方に固定される連結部材と、一方の流体送通管の他方
の流体送通管への軸方向の相対的な接近変位においてこ
れを弾性的に規制すべく、軸方向において両ばね受間に
配置される第一の弾性部材と、一方の流体送通管の他方
の流体送通管からの軸方向の相対的な離反変位において
これを弾性的に規制すべく、第一及び第二のばね受のう
ち前記一方と連結部材のばね受部との間に配置される第
二の弾性部材とを具備している請求項１又は２に記載の
流体送通管用継手。(7) The elastic device includes a first spring receiver fixed to the tube end of one fluid conveyance tube, a second spring receiver fixed to the tube end of the other fluid conveyance tube, and a shaft. It has a spring receiver at one end that is disposed on one side of the first and second spring receivers in the direction, and the other end is fixed to the other of the first and second spring receivers. The connecting member and a first member disposed between both spring receivers in the axial direction to elastically restrict the relative approach displacement of one fluid passage pipe to the other fluid passage pipe in the axial direction. said one of the first and second spring bearings in order to elastically restrict the relative displacement of one fluid passage tube from the other fluid passage tube in the axial direction. 3. The fluid communication pipe joint according to claim 1, further comprising a second elastic member disposed between the spring receiving portion of the connecting member and the second elastic member.
接固着されて、両流体送通管の管端部側に夫々連結され
る請求項７に記載の流体送通管用継手。(8) The fluid communication according to claim 7, wherein the cylindrical body has both ends directly fixed to the pipe end portions of both the fluid communication pipes, and is connected to the pipe end sides of both the fluid communication pipes, respectively. Pipe fittings.
項１から８のいずれか一項に記載の流体送通管用継手。(9) The fluid communication pipe joint according to any one of claims 1 to 8, wherein the cylindrical body is made of a heat-resistant woven fabric or a metal pipe.
顔状に拡径する凹球面シール座と該凹球面シール座と連
続するフランジ部とが一体的に設けられており、他方の
排気管には前記一方の排気管と相対向する管端部外周面
に前記凹球面シール座に対応する凸球面部を持つシール
リングとフランジ部を有し該シールリングを前記凹球面
シール座側に押圧する押圧ブロックとが該他方の排気管
の軸方向に摺動可能に配されており、前記他方の排気管
と該他方の排気管の管端部外周面の押圧ブロックとの摺
動部には該摺動部を覆って軸方向に伸縮自在の耐熱織布
からなる筒状カバーが配されており、一方の排気管と他
方の排気管とは該一方の排気管のフランジ部と押圧ブロ
ックのフランジ部と該他方の排気管に固設された連結部
材とに係合して配された一対のボルトとコイルばねとか
らなる押圧手段により互いに連結されていることを特徴
とする排気管継手。(10) The pipe end of one exhaust pipe is integrally provided with a concave spherical seal seat whose diameter increases in a morning glory shape toward the end, and a flange portion continuous with the concave spherical seal seat, The other exhaust pipe has a seal ring and a flange portion having a convex spherical part corresponding to the concave spherical seal seat on the outer peripheral surface of the pipe end opposite to the one exhaust pipe, and the seal ring is connected to the concave spherical seal. A pressing block that presses the seat side is arranged to be slidable in the axial direction of the other exhaust pipe, and the sliding between the other exhaust pipe and the pressing block on the outer circumferential surface of the pipe end of the other exhaust pipe A cylindrical cover made of a heat-resistant woven fabric that is stretchable in the axial direction is arranged to cover the sliding part, and one exhaust pipe and the other exhaust pipe are connected to the flange part of the one exhaust pipe. and a flange of the pressing block and a connecting member fixed to the other exhaust pipe are connected to each other by pressing means consisting of a pair of bolts and a coil spring, which are arranged to engage with each other. Exhaust pipe fitting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33969490A JP2847223B2 (en) | 1990-01-19 | 1990-11-30 | Exhaust pipe fittings |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP427590 | 1990-01-19 | ||
| JP2-4275 | 1990-01-19 | ||
| JP33969490A JP2847223B2 (en) | 1990-01-19 | 1990-11-30 | Exhaust pipe fittings |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03253716A true JPH03253716A (en) | 1991-11-12 |
| JP2847223B2 JP2847223B2 (en) | 1999-01-13 |
Family
ID=26338025
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP33969490A Expired - Fee Related JP2847223B2 (en) | 1990-01-19 | 1990-11-30 | Exhaust pipe fittings |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2847223B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7093861B2 (en) * | 2000-08-31 | 2006-08-22 | Suncall Corporation | Exhaust pipe joint structure and coil spring used in the same |
| US20160040566A1 (en) * | 2014-08-05 | 2016-02-11 | General Electric Company | Vibration dampening muffler and system |
| JP2017201173A (en) * | 2016-05-04 | 2017-11-09 | ユニゾン・インダストリーズ，エルエルシー | Feeder duct assembly with flexible end fittings |
-
1990
- 1990-11-30 JP JP33969490A patent/JP2847223B2/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7093861B2 (en) * | 2000-08-31 | 2006-08-22 | Suncall Corporation | Exhaust pipe joint structure and coil spring used in the same |
| US20160040566A1 (en) * | 2014-08-05 | 2016-02-11 | General Electric Company | Vibration dampening muffler and system |
| JP2017201173A (en) * | 2016-05-04 | 2017-11-09 | ユニゾン・インダストリーズ，エルエルシー | Feeder duct assembly with flexible end fittings |
| US11203946B2 (en) | 2016-05-04 | 2021-12-21 | Unison Industries, Llc | Feeder duct assembly with flexible end fittings |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2847223B2 (en) | 1999-01-13 |
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| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
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| LAPS | Cancellation because of no payment of annual fees |