JPS62179320U - - Google Patents

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図ａ，ｂ、第２図は本考案による車輌用排
気系の防振構造の第一実施例を示し、第１図ａは
その全体斜視図、第１図ｂはその要部斜視図、第
２図は排気系Ｅｘ後方における捩れ振動加速度と
排気系Ｅｘの捩れ振動周波数との相関を実施例と
従来例とで比較して示した振動特性線図、第３図
ａ，ｂは本考案の第二実施例の要部斜視図と要部
断面図、第４図〜第６図は本考案の第三、第四、
第五実施例のそれぞれの要部斜視図である。第７
図は従来の車輌用排気系の防振構造の一部破断側
面図、第８図は従来の排気系の要部斜視図、第９
図は第８図に示す各測定位置における従来の振動
特性線図である。 １……排気管（排気部材）、２Ａ……メインマ
フラ（（排気部材）、２Ｂ……サブマフラ（排気
部材）、３……防振部材、４……捩りバネ、６…
…マス（質量体）、７……ゴム質弾性支持部材、
８……取付ボルト、９……車体側ブラケツト、Ｅ
ｘ……排気系、Ｘ……排気系のライン軸線、Ｃ…
…捩りバネのコイル軸線、２０……ゴム質緩衝部
材、２１……円板部材（質量体）、２２……振子
状アーム部材（質量体）、２３……筒状部材（質
量体）。 Figures 1a, b, and 2 show a first embodiment of the vibration isolation structure for a vehicle exhaust system according to the present invention. Figure 1a is a perspective view of the entire structure, and Figure 1b is a perspective view of the main parts thereof. , Fig. 2 is a vibration characteristic diagram comparing the correlation between the torsional vibration acceleration at the rear of the exhaust system Ex and the torsional vibration frequency of the exhaust system Ex between the embodiment and the conventional example, and Fig. 3 a and b are the diagrams shown in this figure. The main part perspective view and main part sectional view of the second embodiment of the invention, and FIGS. 4 to 6 are the third, fourth, and third embodiments of the invention.
It is a perspective view of the main part of each of the fifth embodiment. 7th
The figure is a partially cutaway side view of the vibration isolation structure of a conventional vehicle exhaust system, Figure 8 is a perspective view of the main part of a conventional exhaust system, and Figure 9 is a partially cutaway side view of the vibration isolation structure of a conventional vehicle exhaust system.
The figure is a conventional vibration characteristic diagram at each measurement position shown in FIG. 8. 1...Exhaust pipe (exhaust member), 2A...Main muffler ((exhaust member), 2B...Sub muffler (exhaust member), 3...Vibration isolation member, 4...Torsion spring, 6...
...Mass (mass body), 7...Rubber elastic support member,
8...Mounting bolt, 9...Vehicle side bracket, E
x...Exhaust system, X...Exhaust system line axis, C...
... Coil axis of torsion spring, 20 ... Rubber buffer member, 21 ... Disc member (mass body), 22 ... Pendulum-shaped arm member (mass body), 23 ... Cylindrical member (mass body).

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 排気系のライン軸線に沿つて配設された排気部
材と、前記排気系の下流側の前記排気部材に一方
端部が係止されかつコイル軸線が前記ライン軸線
に平行となるように配設されたコイル状の捩りバ
ネと、前記捩りバネの他方端部に係止された質量
体と、を備えたことを特徴とする車輌用排気系の
防振構造。 an exhaust member disposed along the line axis of the exhaust system, one end of which is locked to the exhaust member on the downstream side of the exhaust system, and the coil axis is disposed so as to be parallel to the line axis; 1. A vibration isolation structure for a vehicle exhaust system, comprising: a coil-shaped torsion spring; and a mass body secured to the other end of the torsion spring.