JP2011093402A - Exhaust pipe support device for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent vibration absorption of an exhaust system by a mount rubber from being affected and to restrict large displacement of an exhaust pipe in the vehicle longitudinal direction and vehicle width direction in an exhaust pipe support device for a vehicle. <P>SOLUTION: In the exhaust pipe support device for a vehicle in which horizontal through holes are formed in the upper part and the lower part of the mount rubber in the vertical direction respectively, a support bracket connected to a vehicle body is inserted into the through hole in the upper part out of the through holes, a support bracket connected to the exhaust pipe is inserted into the through hole in the lower part, and the exhaust pipe is supported to the lower part of the vehicle body through the mount rubber, a rocking restriction means restricting wide rocking of the exhaust pipe is arranged in a gap between the exhaust pipe and the mount rubber, and the rocking restriction means is formed of a ring-like member directing the axis to the vertical direction and integrally shaped with the mount rubber and a pin-like member inserted into an inner periphery of the ring-like member at a predetermined interval and connected with the exhaust pipe. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

この発明は車両用の排気管支持装置に係り、特にマウントゴムによる排気系の振動吸収に影響を与えることなく、排気管の車両前後方向および車両左右方向への変位を規制する車両用の排気管支持装置に関するものである。   The present invention relates to a vehicle exhaust pipe support device, and more particularly to a vehicle exhaust pipe that regulates displacement of the exhaust pipe in the vehicle front-rear direction and the vehicle left-right direction without affecting the vibration absorption of the exhaust system by the mount rubber. The present invention relates to a support device.

一般に、排気管及びマフラは、車体側ハンガーブラケットとマフラ側ハンガーブラケットとの間にマウントゴムを介して支持されており、このマウントゴムに２個の貫通孔を形成し、一方の貫通孔に車体側ハンガーブラケットを嵌合させるとともに、他方の貫通孔にはマフラ側ハンガーブラケットを嵌合させている。
そして、このような構造により、排気系の上下方向の振動をマウントゴムで吸収している。 Generally, the exhaust pipe and the muffler are supported via a mount rubber between the vehicle body side hanger bracket and the muffler side hanger bracket, and two through holes are formed in the mount rubber, and the vehicle body is formed in one through hole. The side hanger bracket is fitted, and the muffler side hanger bracket is fitted to the other through hole.
With such a structure, the vertical vibration of the exhaust system is absorbed by the mount rubber.

特開２０００−１２０７８４号公報JP 2000-120784 A 特開２００９−０１３８２６号公報JP 2009-013826 A

ところで、従来の車両用の排気管支持装置においては、上述の構造としたため、急発進・急制動、路面からの入力などにより、マウントゴムが車体側ハンガーブラケットのマウントゴム支持部を中心に揺動し、排気管やマフラが他の車両部品に接触するおそれがあるという不都合がある。
また、上記特許文献１においては、車体またはマフラから突出するハンガーブラケットを１つ追加し、マウントゴムに孔をもう１個形成し、この孔に前記ハンガーブラケットを挿通することにより、マウントゴムの揺動を規制している。
しかし、この特許文献１に開示される方策では、マウントゴムの揺動は規制できるものの、通常走行時に発生する上下方向の揺動に対し、マウントゴムの排気系の振動吸収性能に影響を及ぼすという不都合がある。
また、上記特許文献２においては、車体またはマフラから突出するハンガーブラケットを１つ追加し、マウントゴムとの間に所定間隔を開けて設置することにより、マウントゴムが車体側ハンガーブラケットのマウントゴム支持部を中心として所定方向に揺動するのを規制することができ、さらに排気系の振動吸収性能にも影響を及ぼさない。
しかし、この特許文献２に開示される方策では、所定の方向にしか揺動を規制することができず、他方向を規制するためには更にハンガーブラケットを追加する必要があり、重量が増加するとともに、コストアップとなるという不都合がある。 By the way, the conventional exhaust pipe support device for a vehicle has the above-described structure, so that the mount rubber swings around the mount rubber support portion of the hanger bracket on the vehicle body side by sudden start / braking, input from the road surface, etc. However, there is a disadvantage that the exhaust pipe or the muffler may come into contact with other vehicle parts.
Further, in Patent Document 1, one hanger bracket that protrudes from the vehicle body or the muffler is added, another hole is formed in the mount rubber, and the hanger bracket is inserted into this hole, whereby the mount rubber is shaken. Is restricted.
However, although the measure disclosed in Patent Document 1 can regulate the swing of the mount rubber, it affects the vibration absorption performance of the exhaust system of the mount rubber against the swing in the vertical direction that occurs during normal travel. There is an inconvenience.
In Patent Document 2, one hanger bracket that protrudes from the vehicle body or the muffler is added and installed at a predetermined interval from the mount rubber so that the mount rubber supports the mount rubber of the vehicle body side hanger bracket. It is possible to restrict the rocking in a predetermined direction centering on the part, and it does not affect the vibration absorption performance of the exhaust system.
However, in the measure disclosed in Patent Document 2, the swing can be restricted only in a predetermined direction, and in order to restrict the other direction, it is necessary to add a hanger bracket, which increases the weight. In addition, there is an inconvenience that the cost is increased.

この発明は、車両用の排気管支持装置において、マウントゴムによる排気系の振動吸収に影響を与えず、且つ、排気管が車両前後方向および車両左右方向に大きく変位することを規制することを目的としている。   It is an object of the present invention to provide a vehicle exhaust pipe support device that does not affect the vibration absorption of the exhaust system by the mount rubber and restricts the exhaust pipe from being greatly displaced in the vehicle front-rear direction and the vehicle left-right direction. It is said.

そこで、この発明は、上述不都合を除去するために、マウントゴムの鉛直方向上部と下部とに夫々水平方向の貫通孔を形成し、これらの貫通孔のうち上部の貫通孔に車体に連結される支持ブラケットを挿入する一方、下部の貫通孔に排気管に連結される支持ブラケットを挿入し、前記マウントゴムを介して排気管を車体の下部に弾性的に支持する車両用の排気管支持装置において、前記排気管と前記マウントゴムとの間に前記排気管の大幅な揺動を規制する揺動規制手段を設け、この揺動規制手段は、その軸線を鉛直方向に向け前記マウントゴムに一体成形されるリング状部材と、このリング状部材の内周に所定隙間を隔てて挿入され前記排気管に連結するピン状部材とによって形成したことを特徴とする。   Therefore, in order to eliminate the above-described disadvantages, the present invention forms horizontal through holes in the vertical upper and lower portions of the mount rubber, and is connected to the vehicle body in the upper through holes among these through holes. An exhaust pipe support device for a vehicle in which a support bracket is inserted while a support bracket connected to an exhaust pipe is inserted into a lower through hole, and the exhaust pipe is elastically supported on the lower part of the vehicle body via the mount rubber. A swing restricting means for restricting a significant swing of the exhaust pipe is provided between the exhaust pipe and the mount rubber, and the swing restricting means is formed integrally with the mount rubber with its axis line in the vertical direction. And a pin-like member inserted into the inner periphery of the ring-like member with a predetermined gap and connected to the exhaust pipe.

以上詳細に説明した如くこの発明によれば、マウントゴムの鉛直方向上部と下部とに夫々水平方向の貫通孔を形成し、これらの貫通孔のうち上部の貫通孔に車体に連結される支持ブラケットを挿入する一方、下部の貫通孔に排気管に連結される支持ブラケットを挿入し、マウントゴムを介して排気管を車体の下部に弾性的に支持する車両用の排気管支持装置において、排気管とマウントゴムとの間に排気管の大幅な揺動を規制する揺動規制手段を設け、揺動規制手段は、その軸線を鉛直方向に向けマウントゴムに一体成形されるリング状部材と、リング状部材の内周に所定隙間を隔てて挿入され排気管に連結するピン状部材とによって形成した。
これにより、前記揺動規制手段を、その軸線を鉛直方向に向け前記マウントゴムに一体成形されるリング状部材と、このリング状部材の内周に所定隙間を隔てて挿入され前記排気管に連結するピン状部材とによって形成、つまり、リング状部材の内周に所定隙間を隔てて挿入されるピン状部材とによって形成され、リング状部材をマウントゴムに一体形成し、ピン状部材を排気管に連結することで、排気管の上下方向の振動に対しては、ピン状部材がリング状部材の内周を上下方向に揺動し、ピン状部材によって排気管の上限方向の振動を抑制することがない。
しかし、排気管が車両前後方向や左右方向に揺動した際に、ピン状部材がリング状部材の内周に当接することで、排気管が大きく変位することを規制することができる。
従って、前記揺動規制手段は、排気管の車両上下方向の動きに対しては、リング状部材の内周をピン状部材が上下方向にスライドするため、振動性能を阻害することがないという効果がある。
それに対して、前記排気管の車両前後方向や左右方向の動きに対しては、リング状部材の内周によって、排気管が大きく変位することを規制することができる。 As described above in detail, according to the present invention, the mounting rubber is formed with horizontal through holes in the upper and lower portions in the vertical direction, and the support bracket connected to the vehicle body in the upper through hole among these through holes. In the exhaust pipe support device for a vehicle, the support pipe connected to the exhaust pipe is inserted into the lower through hole, and the exhaust pipe is elastically supported on the lower part of the vehicle body via the mount rubber. A swing restricting means for restricting a significant swing of the exhaust pipe is provided between the ring rubber and the mount rubber. The swing restricting means has a ring-shaped member integrally formed with the mount rubber with its axis line oriented in the vertical direction, and a ring And a pin-like member that is inserted into the inner periphery of the like member with a predetermined gap and connected to the exhaust pipe.
As a result, the swing restricting means is inserted into the inner surface of the ring rubber with a predetermined gap between the ring-shaped member integrally formed with the mount rubber with the axis thereof in the vertical direction, and connected to the exhaust pipe. That is formed by a pin-shaped member that is inserted into the inner periphery of the ring-shaped member with a predetermined gap therebetween, the ring-shaped member is integrally formed with the mount rubber, and the pin-shaped member is formed in the exhaust pipe. As a result, the pin-shaped member swings up and down the inner periphery of the ring-shaped member, and the pin-shaped member suppresses the vibration in the upper limit direction of the exhaust pipe. There is nothing.
However, when the exhaust pipe swings in the vehicle front-rear direction or the left-right direction, the pin-shaped member abuts on the inner periphery of the ring-shaped member, thereby restricting the exhaust pipe from being largely displaced.
Therefore, the swing restricting means does not hinder the vibration performance because the pin-shaped member slides in the vertical direction on the inner periphery of the ring-shaped member when the exhaust pipe moves in the vertical direction of the vehicle. There is.
On the other hand, with respect to the movement of the exhaust pipe in the vehicle front-rear direction and the left-right direction, it is possible to restrict the exhaust pipe from being largely displaced by the inner periphery of the ring-shaped member.

図１は排気管支持装置の拡大側面図である。（実施例１）FIG. 1 is an enlarged side view of the exhaust pipe support device. Example 1 図２は排気管支持装置の拡大平面図である。（実施例１）FIG. 2 is an enlarged plan view of the exhaust pipe support device. Example 1 図３は車両の概略底面図である。（実施例１）FIG. 3 is a schematic bottom view of the vehicle. Example 1 図４は車両の側面図である。（実施例１）FIG. 4 is a side view of the vehicle. Example 1 図５は排気管支持装置を示し、（ａ）はサイドメンバに取り付けられる支持ブラケットの分解図、（ｂ）はマフラと排気管部分の分解図、（ｃ）はマウントゴムとリング状部材の平面図、（ｄ）はマウントゴムとリング状部材の正面図、（ｅ）はマウントゴムとリング状部材の側面図である。（実施例１）5A and 5B show an exhaust pipe support device, wherein FIG. 5A is an exploded view of a support bracket attached to a side member, FIG. 5B is an exploded view of a muffler and an exhaust pipe portion, and FIG. 5C is a plan view of a mount rubber and a ring-shaped member. FIG. 4D is a front view of the mount rubber and the ring-shaped member, and FIG. 4E is a side view of the mount rubber and the ring-shaped member. Example 1 図６は排気管支持装置を示し、（ａ）はマウントゴムとリング状部材の平面図、（ｂ）は排気管支持装置の拡大側面図である。（実施例１）6A and 6B show the exhaust pipe support device, where FIG. 6A is a plan view of a mount rubber and a ring-shaped member, and FIG. 6B is an enlarged side view of the exhaust pipe support device. Example 1 図７は排気管支持装置の拡大平面図である。（実施例２）FIG. 7 is an enlarged plan view of the exhaust pipe support device. (Example 2)

以下図面に基づいてこの発明の実施例を詳細に説明する。   Embodiments of the present invention will be described below in detail with reference to the drawings.

図１〜図６はこの発明の第１実施例を示すものである。
図３において、１は車両、２は車体、３ａは左側前輪、３ｂは右側前輪、４ａは左側後輪、４ｂは右側後輪である。
前記車両１の車体２は、車両１の左右両側において車両前方方向から車両後方方向に向かって延びる左右側のサイドメンバ５ａ、５ｂを備えている。
また、前記車両１は、前側にエンジン６と変速機７とを横置き状態に備えている。
そして、これらのエンジン６及び変速機７部分から前記車体２の車両中心部位を車両前方方向から車両後方方向に向かって延びるプロペラシャフト８を備え、このプロペラシャフト８をリヤデフ９に接続するとともに、このリヤデフ９を前記左右側後輪４ａ、４ｂに夫々接続している。
更に、前記エンジン６に接続される排気管１０は、図３に示す如く、前記プロペラシャフト８と同様に、前記車体２の車両中心部位を車両前方方向から車両後方方向に向かって延びる状態に配設され、排気管１０の途中部位、つまり前後及び左右の車両中心にサイドマフラ１１を備えている。
そして、このサイドマフラ１１よりも下流側、つまり車両後方方向側の前記排気管１０は、前記リヤデフ９を通過した部位で左右の第１、第２排気管１０ａ、１０ｂに分岐され、これらの第１、第２排気管１０ａ、１０ｂは前記左右側後輪４ａ、４ｂ近傍且つ車両後方方向に夫々配設される左右側の第１、第２マフラ１２ａ、１２ｂに夫々接続される。
このとき、左右側の第１、第２マフラ１２ａ、１２ｂは、図３に示す如く、スペヤタイヤハウス１３を挟むとともに、リヤバンパ１４の車両前方方向且つ内側近傍に配設される。 1 to 6 show a first embodiment of the present invention.
In FIG. 3, 1 is a vehicle, 2 is a vehicle body, 3a is a left front wheel, 3b is a right front wheel, 4a is a left rear wheel, and 4b is a right rear wheel.
The vehicle body 2 of the vehicle 1 includes left and right side members 5 a and 5 b that extend from the vehicle front direction toward the vehicle rear direction on both the left and right sides of the vehicle 1.
Further, the vehicle 1 includes an engine 6 and a transmission 7 on the front side in a horizontally placed state.
A propeller shaft 8 extending from the engine 6 and the transmission 7 to the vehicle central portion of the vehicle body 2 from the vehicle front direction toward the vehicle rearward direction is connected to the rear differential 9. A rear differential 9 is connected to each of the left and right rear wheels 4a and 4b.
Further, as shown in FIG. 3, the exhaust pipe 10 connected to the engine 6 is arranged in a state in which the vehicle central portion of the vehicle body 2 extends from the vehicle forward direction toward the vehicle rearward direction, like the propeller shaft 8. A side muffler 11 is provided at an intermediate portion of the exhaust pipe 10, that is, at the front and rear and left and right vehicle centers.
The exhaust pipe 10 on the downstream side of the side muffler 11, that is, on the vehicle rearward side, is branched into left and right first and second exhaust pipes 10 a and 10 b at a portion passing through the rear differential 9. The first and second exhaust pipes 10a and 10b are respectively connected to left and right first and second mufflers 12a and 12b disposed in the vicinity of the left and right rear wheels 4a and 4b and in the vehicle rearward direction.
At this time, the first and second mufflers 12a, 12b on the left and right sides sandwich the spare tire house 13 as shown in FIG.

ここで、以下の説明は、左右側の第１、第２マフラ１２ａ、１２ｂの支持構造に関する説明であり、図面には左右対称に取り付けられる後輪やサイドメンバ、マフラなどの一方のみが開示されているため、説明上の便宜を図るとともに、理解を容易とするために、一方の部品のみを、例えば「左右側の第１、第２マフラ１２ａ、１２ｂ」を総称の「マフラ１２」として説明を行い、他方の部品に関する説明は省略する。   Here, the following description relates to the support structure of the first and second mufflers 12a and 12b on the left and right sides, and only one of the rear wheel, the side member, the muffler and the like attached symmetrically is disclosed in the drawing. Therefore, for convenience of explanation and easy understanding, only one part is described as, for example, “the first and second mufflers 12a and 12b on the left and right sides” are collectively referred to as “muffler 12”. And description of the other part is omitted.

前記マフラ１２は、図４に示す如く、前記サイドメンバ５の下部かつ後輪４の車両後方方向近傍に取り付けられる。
このとき、前記車体２は、サイドメンバ５の上面にリヤフロア１５を形成している。
そして、このリヤフロア１５には、マウントゴム１６と後側マウントゴム１７とによって前記排気管１０及びマフラ１２を取り付けている。
また、前記マウントゴム１６の鉛直方向上部と下部とに夫々水平方向の貫通孔１８、１９を形成し、これらの貫通孔１８、１９のうち上部の貫通孔１８に前記車体２に連結される支持ブラケット２０を挿入する一方、下部の貫通孔１９に前記排気管１０に連結される支持ブラケット２１を挿入し、前記マウントゴム１６を介して排気管１０を車体２の下部に弾性的に支持して車両用の排気管支持装置を実現している。
つまり、図５に示す如く、前記マウントゴム１６を楕円形状に形成し、このマウントゴム１６に前記上部の貫通孔１８と前記下部の貫通孔１９とを鉛直方向上部と下部とに夫々同形状に形成する。
更に、前記車体２のサイドメンバ５に連結される上部用の前記支持ブラケット２０を設けるとともに、前記排気管１０、例えば前記マフラ１２に連結される下部用の前記支持ブラケット２１を設け、図５に示す如く、前記上部の貫通孔１８に上部用の支持ブラケット２０を挿入する一方、前記下部の貫通孔１９に下部用の前記支持ブラケット２１を挿入して、前記マウントゴム１６を介して排気管１０及びマフラ１２を車体２のサイドメンバ５の下部に弾性的に支持するものである。 As shown in FIG. 4, the muffler 12 is attached below the side member 5 and in the vicinity of the rear wheel 4 in the vehicle rear direction.
At this time, the vehicle body 2 forms a rear floor 15 on the upper surface of the side member 5.
The exhaust pipe 10 and the muffler 12 are attached to the rear floor 15 with a mounting rubber 16 and a rear mounting rubber 17.
Further, horizontal through holes 18 and 19 are formed in the upper and lower parts of the mount rubber 16 in the vertical direction, respectively, and the upper through hole 18 of these through holes 18 and 19 is connected to the vehicle body 2. While the bracket 20 is inserted, a support bracket 21 connected to the exhaust pipe 10 is inserted into the lower through hole 19, and the exhaust pipe 10 is elastically supported on the lower part of the vehicle body 2 via the mount rubber 16. An exhaust pipe support device for a vehicle is realized.
That is, as shown in FIG. 5, the mount rubber 16 is formed in an elliptical shape, and the upper through hole 18 and the lower through hole 19 are formed in the mount rubber 16 in the same shape in the vertical upper and lower portions, respectively. Form.
Further, the upper support bracket 20 connected to the side member 5 of the vehicle body 2 is provided, and the lower support bracket 21 connected to the exhaust pipe 10, for example, the muffler 12, is provided. As shown, the upper support bracket 20 is inserted into the upper through hole 18, while the lower support bracket 21 is inserted into the lower through hole 19, and the exhaust pipe 10 is inserted through the mount rubber 16. The muffler 12 is elastically supported on the lower part of the side member 5 of the vehicle body 2.

このとき、前記排気管１０と前記マウントゴム１６との間に前記排気管１０の大幅な揺動を規制する揺動規制手段２２を設け、この揺動規制手段２２は、その軸線Ｌを鉛直方向に向け前記マウントゴム１６に一体成形されるリング状部材２３と、このリング状部材２３の内周に所定隙間Ｓを隔てて挿入され前記排気管１０に連結するピン状部材２４とによって形成する構成とする。
詳述すれば、前記揺動規制手段２２のリング状部材２３は、図１及び図２、図５、図６に示す如く、前記マウントゴム１６に一体成形されるものであり、このマウントゴム１６の上端から車両後方方向かつ水平方向に突出した平板状に形成するとともに、この突出部位には中心を通過する軸線を鉛直方向に向けた孔部２５を形成してリング状としている。
また、前記揺動規制手段２２のピン状部材２４は、前記排気管１０のマフラ１２に連結する棒状部材からなり、前記リング状部材２３の孔部２５の内径に比べて、ピン状部材２４の径を小さく設定し、前記リング状部材２３の孔部２５にピン状部材２４を挿入した際に、リング状部材２３の孔部２５の内周とピン状部材２４とに所定隙間Ｓを確保するものである。
これにより、前記揺動規制手段２２を、その軸線Ｌ（図５参照。）を鉛直方向に向け前記マウントゴム１６に一体成形されるリング状部材２３と、このリング状部材２３の内周に所定隙間Ｓを隔てて挿入され前記排気管１０に連結するピン状部材２４とによって形成、つまり、リング状部材２３の内周に所定隙間Ｓを隔てて挿入されるピン状部材２４とによって形成され、リング状部材２３をマウントゴム１６に一体形成し、ピン状部材２４を排気管１０に連結することで、排気管１０の上下方向の振動に対しては、図１の白抜き矢印に示す如く、ピン状部材２４がリング状部材２３の内周を上下方向に揺動し、ピン状部材２４によって排気管１０の上限方向の振動を抑制することがない。
しかし、排気管１０が車両前後方向や左右方向に揺動した際には、図２の白抜き矢印に示す如く、ピン状部材２４がリング状部材２３の内周に当接することで、このリング状部材２３によって排気管１０が大きく変位することを規制することができる。
従って、前記揺動規制手段２２は、排気管１０の車両上下方向の動きに対しては、リング状部材２３の内周をピン状部材２４が上下方向にスライドするため、振動性能を阻害することがないという効果がある。
それに対して、前記排気管１０の車両前後方向や左右方向の動きに対しては、リング状部材２３の内周によって、排気管１０が大きく変位することを規制することができる。 At this time, a swing restricting means 22 for restricting a significant swing of the exhaust pipe 10 is provided between the exhaust pipe 10 and the mount rubber 16, and the swing restricting means 22 has its axis L in the vertical direction. A ring-shaped member 23 formed integrally with the mount rubber 16 toward the end, and a pin-shaped member 24 inserted into the inner periphery of the ring-shaped member 23 with a predetermined gap S and connected to the exhaust pipe 10. And
More specifically, the ring-shaped member 23 of the swing restricting means 22 is integrally formed with the mount rubber 16 as shown in FIGS. 1, 2, 5, and 6. In this projecting portion, a hole 25 is formed in which the axis passing through the center is directed in the vertical direction.
Further, the pin-shaped member 24 of the swing restricting means 22 is a rod-shaped member connected to the muffler 12 of the exhaust pipe 10, and the pin-shaped member 24 has an inner diameter that is smaller than the inner diameter of the hole 25 of the ring-shaped member 23. When the diameter is set small and the pin-shaped member 24 is inserted into the hole 25 of the ring-shaped member 23, a predetermined gap S is secured between the inner periphery of the hole 25 of the ring-shaped member 23 and the pin-shaped member 24. Is.
As a result, the swing restricting means 22 has a ring-shaped member 23 integrally formed with the mount rubber 16 with its axis L (see FIG. 5) in the vertical direction, and a predetermined inner periphery of the ring-shaped member 23. Formed by a pin-like member 24 inserted through a gap S and connected to the exhaust pipe 10, that is, formed by a pin-like member 24 inserted by a predetermined gap S on the inner periphery of the ring-like member 23, By integrally forming the ring-shaped member 23 on the mount rubber 16 and connecting the pin-shaped member 24 to the exhaust pipe 10, the vertical vibration of the exhaust pipe 10 can be prevented as shown by the white arrow in FIG. The pin-shaped member 24 swings up and down on the inner periphery of the ring-shaped member 23, and the pin-shaped member 24 does not suppress vibration in the upper limit direction of the exhaust pipe 10.
However, when the exhaust pipe 10 swings in the vehicle front-rear direction or the left-right direction, the pin-shaped member 24 abuts on the inner periphery of the ring-shaped member 23 as shown by the white arrow in FIG. It is possible to restrict the exhaust pipe 10 from being greatly displaced by the shaped member 23.
Therefore, the swing restricting means 22 impedes vibration performance because the pin-shaped member 24 slides in the vertical direction on the inner periphery of the ring-shaped member 23 when the exhaust pipe 10 moves in the vertical direction of the vehicle. There is an effect that there is no.
On the other hand, with respect to the movement of the exhaust pipe 10 in the vehicle front-rear direction and the left-right direction, the displacement of the exhaust pipe 10 can be restricted by the inner periphery of the ring-shaped member 23.

また、前記マウントゴム１６の上部の貫通孔１８と前記リング状部材２３とを車両上下方向で同じ高さ位置に配設する。
つまり、前記揺動規制手段２２のリング状部材２３を前記マウントゴム１６に一体成形する際に、図１及び図６に示す如く、このマウントゴム１６の上端から車両後方方向かつ水平方向に突出する所定の厚みを有する平板状に形成し、マウントゴム１６に形成される上部の貫通孔１８と前記リング状部材２３とを車両上下方向でほぼ同じ高さ位置とするものである。
従って、マウントゴム１６内の上部の貫通孔１８とリング状部材２３とを車両上下方向で同じ高さの位置に配設することで、排気管１０が車両前後方向や左右方向に揺動し、ピン状部材２４がリング状部材２３の内周に当接した際に、上部の貫通孔１８に挿入され車体２に支持された支持ブラケット２０によってリング状部材２３の変位（および変形）を効率的に受け止めることができ、排気管１０が大きく揺動することをより一層確実に抑制することができる。 Further, the through hole 18 at the top of the mount rubber 16 and the ring-shaped member 23 are disposed at the same height in the vehicle vertical direction.
That is, when the ring-shaped member 23 of the swing restricting means 22 is formed integrally with the mount rubber 16, as shown in FIGS. 1 and 6, it protrudes from the upper end of the mount rubber 16 in the vehicle rearward direction and in the horizontal direction. It is formed in a flat plate shape having a predetermined thickness, and the upper through hole 18 formed in the mount rubber 16 and the ring-shaped member 23 are positioned at substantially the same height in the vehicle vertical direction.
Therefore, by arranging the upper through hole 18 and the ring-shaped member 23 in the mount rubber 16 at the same height position in the vehicle vertical direction, the exhaust pipe 10 swings in the vehicle front-rear direction and left-right direction, When the pin-shaped member 24 comes into contact with the inner periphery of the ring-shaped member 23, the displacement (and deformation) of the ring-shaped member 23 is efficiently performed by the support bracket 20 inserted into the upper through hole 18 and supported by the vehicle body 2. Therefore, the exhaust pipe 10 can be more reliably prevented from swinging greatly.

図７はこの発明の第２実施例を示すものである。
この第２実施例において、上述第１実施例のものと同一機能を果たす箇所には、同一符号を付して説明する。 FIG. 7 shows a second embodiment of the present invention.
In the second embodiment, portions that perform the same functions as those of the first embodiment will be described with the same reference numerals.

この第２実施例の特徴とするところは、前記車体２に連結される前記支持ブラケット２０に前記リング状部材２３の外周壁２３ｆに沿って延びるストッパ片３１を設けた点にある。   This second embodiment is characterized in that a stopper piece 31 extending along the outer peripheral wall 23f of the ring-shaped member 23 is provided on the support bracket 20 connected to the vehicle body 2.

すなわち、前記車体２のサイドメンバ５に連結される上部用の前記支持ブラケット２０を設けるとともに、前記排気管１０、例えば前記マフラ１２に連結される下部用の前記支持ブラケット２１を設け、前記マウントゴム１６の上部の貫通孔に上部用の支持ブラケット２０を挿入する一方、下部の貫通孔に下部用の前記支持ブラケット２１を挿入して、前記マウントゴム１６を介して排気管１０及びマフラ１２を車体２のサイドメンバ５の下部に弾性的に支持する。
そして、前記マウントゴム１６の上部の貫通孔に前記支持ブラケット２０を挿入した際に、この支持ブラケット２０に設けた前記ストッパ片３１を、図７に示す如く、前記リング状部材２３の外周壁２３ｆ、詳細には車両右側の外周壁２３ｆに接触させ、前記ストッパ片３１を、支持ブラケット２０側の車両前方方向から車両後方方向に向かって前記リング状部材２３の車両右側の外周壁２３ｆに沿うようにリング状部材２３の端部近傍まで配設するものである。
従って、前記車体２に連結される支持ブラケット２０にリング状部材２３の外周壁２３ｆに沿って延びるストッパ片３１を設けることで、排気管１０が車両左右方向に大きく揺動した際に、ストッパ片３１は、ピン状部材２４によるリング状部材２３の変形を抑制することができる。
これにより、ピン状部材２４やリング状部材２３は、ストッパ片３１によって大きく揺動を規制することができ、排気管１０の大きな揺動をより一層確実に抑制することができる。
また、前記支持ブラケット２０にリング状部材２３を車両幅方向の右側に移動させない前記ストッパ片３１を設けたことにより、排気管１０やマフラ１２の車両幅方向への揺動に対しても規制することができる。
なお、この発明は上述第１及び第２実施例に限定されるものではなく、種々の応用改変が可能である。 That is, the upper support bracket 20 connected to the side member 5 of the vehicle body 2 is provided, and the lower support bracket 21 connected to the exhaust pipe 10, for example, the muffler 12, is provided, and the mount rubber is provided. The upper support bracket 20 is inserted into the upper through-hole 16 and the lower support bracket 21 is inserted into the lower through-hole so that the exhaust pipe 10 and the muffler 12 are connected to the vehicle body via the mount rubber 16. 2 is elastically supported at the lower part of the side member 5.
When the support bracket 20 is inserted into the upper through hole of the mount rubber 16, the stopper piece 31 provided on the support bracket 20 is connected to the outer peripheral wall 23f of the ring-shaped member 23 as shown in FIG. Specifically, the stopper piece 31 is brought into contact with the outer peripheral wall 23f on the right side of the vehicle, and the stopper piece 31 extends along the outer peripheral wall 23f on the right side of the ring-shaped member 23 from the vehicle front direction on the support bracket 20 side toward the vehicle rearward direction. The ring-shaped member 23 is disposed up to the vicinity of the end.
Therefore, by providing the support bracket 20 connected to the vehicle body 2 with the stopper piece 31 extending along the outer peripheral wall 23f of the ring-shaped member 23, the stopper piece when the exhaust pipe 10 is largely swung in the left-right direction of the vehicle. 31 can suppress the deformation of the ring-shaped member 23 due to the pin-shaped member 24.
As a result, the pin-like member 24 and the ring-like member 23 can be largely restricted from swinging by the stopper piece 31, and the large swing of the exhaust pipe 10 can be more reliably suppressed.
Further, by providing the support bracket 20 with the stopper piece 31 that does not move the ring-shaped member 23 to the right in the vehicle width direction, the exhaust pipe 10 and the muffler 12 are also restricted from swinging in the vehicle width direction. be able to.
The present invention is not limited to the first and second embodiments described above, and various application modifications can be made.

例えば、この発明の第１実施例においては、マウントゴムに一体成形したリング状部材の孔部を前記車体に連結される支持ブラケットを挿入する上部の貫通孔よりも車両後方に配置する構成としたが、マフラの動きの規制が必要な方向に応じて、リング状部材の孔部の形成位置を変化させ、マフラの変位量を制御する特別構成とすることも可能である。
また、マウントゴムに形成した上部の貫通孔とリング状部材に形成した孔部との間隔、つまり前記車体に連結される支持ブラケットとリング状部材に形成した孔部との間隔を変更し、特定の方向のマフラの変位量を制御する特別構成とすることも可能である。
更に、マウントゴムの配設向きを車両前後方向から左右の車両幅方向に変更する構成としても、上述した第１及び第２実施例と同等の効果を得ることが可能である。 For example, in the first embodiment of the present invention, the hole portion of the ring-shaped member formed integrally with the mount rubber is arranged behind the upper through-hole into which the support bracket connected to the vehicle body is inserted. However, it is also possible to adopt a special configuration in which the displacement position of the muffler is controlled by changing the formation position of the hole of the ring-shaped member in accordance with the direction in which the movement of the muffler needs to be regulated.
In addition, the distance between the upper through hole formed in the mount rubber and the hole formed in the ring-shaped member, that is, the distance between the support bracket connected to the vehicle body and the hole formed in the ring-shaped member is changed and specified. It is also possible to adopt a special configuration for controlling the amount of displacement of the muffler in the direction of.
Furthermore, even when the mounting rubber is disposed in the direction from the vehicle front-rear direction to the left-right vehicle width direction, it is possible to obtain the same effects as those of the first and second embodiments described above.

１ 車両
２ 車体
５ａ、５ｂ 左右側のサイドメンバ
６ エンジン
７ 変速機
１０ 排気管
１１ サイドマフラ
１２、１２ａ、１２ｂ 左右側の第１、第２マフラ
１６ マウントゴム
１７ 後側マウントゴム
１８ 上部の貫通孔１７
１９ 下部の貫通孔
２０ 支持ブラケット
２１ 支持ブラケット
２２ 揺動規制手段
２３ リング状部材
２３ｆ リング状部材の外周壁
２４ ピン状部材
３１ ストッパ片 DESCRIPTION OF SYMBOLS 1 Vehicle 2 Car body 5a, 5b Left-right side member 6 Engine 7 Transmission 10 Exhaust pipe 11 Side muffler 12, 12a, 12b Left right 1st, 2nd muffler 16 Mount rubber 17 Rear side mount rubber 18 Upper through-hole 17
DESCRIPTION OF SYMBOLS 19 Lower through-hole 20 Support bracket 21 Support bracket 22 Swing regulation means 23 Ring-shaped member 23f Outer peripheral wall of ring-shaped member 24 Pin-shaped member 31 Stopper piece

Claims (3)

マウントゴムの鉛直方向上部と下部とに夫々水平方向の貫通孔を形成し、これらの貫通孔のうち上部の貫通孔に車体に連結される支持ブラケットを挿入する一方、下部の貫通孔に排気管に連結される支持ブラケットを挿入し、前記マウントゴムを介して排気管を車体の下部に弾性的に支持する車両用の排気管支持装置において、前記排気管と前記マウントゴムとの間に前記排気管の大幅な揺動を規制する揺動規制手段を設け、この揺動規制手段は、その軸線を鉛直方向に向け前記マウントゴムに一体成形されるリング状部材と、このリング状部材の内周に所定隙間を隔てて挿入され前記排気管に連結するピン状部材とによって形成したことを特徴とする車両用の排気管支持装置。   A horizontal through hole is formed in each of the upper and lower vertical directions of the mount rubber, and a support bracket connected to the vehicle body is inserted into the upper through hole among these through holes, while an exhaust pipe is inserted into the lower through hole. In a vehicle exhaust pipe support device in which a support bracket coupled to a vehicle is inserted and the exhaust pipe is elastically supported on a lower portion of a vehicle body via the mount rubber, the exhaust pipe is interposed between the exhaust pipe and the mount rubber. A swing restricting means for restricting a significant swing of the tube is provided. The swing restricting means has a ring-shaped member integrally formed with the mount rubber with its axis line set in the vertical direction, and an inner periphery of the ring-shaped member. An exhaust pipe support device for a vehicle, characterized in that it is formed by a pin-like member that is inserted through a predetermined gap and connected to the exhaust pipe. 前記マウントゴムの上部の貫通孔と前記リング状部材とを車両上下方向で同じ高さ位置に配設することを特徴とする請求項１に記載の車両用の排気管支持装置。   The exhaust pipe support device for a vehicle according to claim 1, wherein the through hole in the upper part of the mount rubber and the ring-shaped member are arranged at the same height position in the vehicle vertical direction. 前記車体に連結される前記支持ブラケットに前記リング状部材の外周壁に沿って延びるストッパ片を設けることを特徴とする請求項２に記載の車両用の排気管支持装置。   The exhaust pipe support device for a vehicle according to claim 2, wherein a stopper piece extending along an outer peripheral wall of the ring-shaped member is provided on the support bracket connected to the vehicle body.

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