JPS5893925A - Insertion muffler - Google Patents

Insertion muffler

Info

Publication number
JPS5893925A
JPS5893925A JP19322181A JP19322181A JPS5893925A JP S5893925 A JPS5893925 A JP S5893925A JP 19322181 A JP19322181 A JP 19322181A JP 19322181 A JP19322181 A JP 19322181A JP S5893925 A JPS5893925 A JP S5893925A
Authority
JP
Japan
Prior art keywords
muffler
plate
pipe
secured
main body
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP19322181A
Other languages
Japanese (ja)
Other versions
JPS6364605B2 (en
Inventor
Takanori Toguchi
戸口　孝則
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.)
Yamaha Motor Co Ltd
Original Assignee
Yamaha Motor 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 Yamaha Motor Co Ltd filed Critical Yamaha Motor Co Ltd
Priority to JP19322181A priority Critical patent/JPS5893925A/en
Publication of JPS5893925A publication Critical patent/JPS5893925A/en
Publication of JPS6364605B2 publication Critical patent/JPS6364605B2/ja
Granted legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N1/00—Silencing apparatus characterised by method of silencing
    • F01N1/08—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling
    • F01N1/089—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling using two or more expansion chambers in series

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Silencers (AREA)

Abstract

PURPOSE:To facilitate the maintenance/inspection such as the cleaning in a muffler body, by holding a contact board between a holding board secured to a fixing rod penetrating through a muffler and the front end in the inserting direction of the muffler then fixing the muffler to a muffler body. CONSTITUTION:A muffler (b) is inserted dismountably into a slightly tapered tubular muffler body (a). Said muffler (b) is consturcted in step while coupling two tubular members having different diameter, where the large diameter tube section b1 is partitioned by a partition wall 2. Many small holes 3 are formed in the large and small diameter tube sections b1, b2, and a bugle type guide tube 4 is secured to the open end section of the large diameter section b1. While a plurality of partition boards c1-c4 are secured axially with interval at the outercircumference of the muffler (b), such that when the tube (b) is inserted into the muffler body (a) a plurality of chambers a1 are defined. Said muffler (b) is secured through a nut (f) to the other end of a fixing rod (e) having one end secured to a holding board (g) contating against a contact board (d).

Description

【発明の詳細な説明】 本発明は挿入式マフラに関する。[Detailed description of the invention] The present invention relates to an insertable muffler.

従来、マフラ内部の掃除を簡単に行えるようにしたもの
として特公昭５２−３７１４２号公報に示された挿入式
マフラがある。Conventionally, there is an insertion type muffler disclosed in Japanese Patent Publication No. 52-37142 which allows the inside of the muffler to be easily cleaned.

このものは、消音管外周に複数の仕切板を溶接固着した
組立体をマフラ本体内に抜き差し自在に嵌挿した構造と
なっている。This has a structure in which an assembly in which a plurality of partition plates are welded and fixed to the outer periphery of the muffler is inserted into and removed from the muffler main body at will.

従って、上記マフラはその組立体をマフラ本体から引き
抜けば該マフラ本体内に伺等邪魔になる部材が残らない
ので、掃除を行い易い。Therefore, the muffler is easy to clean because no obstructive members such as holes remain in the muffler body when the assembly is pulled out from the muffler body.

ところが、自動二輪車の走行中組立体がマフラ本体から
抜は落ちたり或いは振動して騒音が発生したシすると困
るので、組立体はマフラ本体に比較的強固に固定する必
要がある。However, the assembly needs to be relatively firmly fixed to the muffler body because it would be a problem if the assembly fell off the muffler body or vibrated and generated noise while the motorcycle was running.

このｉＡＩ定手段として上記マフラは、組立体における
少なくとも一つの仕切板をマフラ本体内周に圧入してき
つく嵌め合わせている。As the iAI determining means, the muffler has at least one partition plate in the assembly that is press-fitted into the inner periphery of the muffler body and tightly fitted.

しかして、この様な構造であると前記マフラ本体にきつ
く嵌め合う仕切板の真円度を正確に設定しなければなら
ず、製作性に問題があると共に上記仕切板の嵌め合いに
よって組立体の抜き差しに比較的大きな力が必要となり
、作業性が悪い。However, with such a structure, the roundness of the partition plate that fits tightly into the muffler body must be accurately set, which poses problems in manufacturing, and the fit of the partition plate causes problems in the assembly. Relatively large force is required to insert and remove, resulting in poor workability.

本発明は斜上事情に鑑みてなされたもので、その目的と
する処は製作性に優れしかも保守点検が簡単に行えるマ
フラを提供することにある。The present invention has been made in view of the above-mentioned situation, and its purpose is to provide a muffler that is excellent in manufacturability and can be easily maintained and inspected.

本発明実施の一例を図面により説明すると、図中（ａ）
はマフラ本体であり、このマフラ本体（ａ）はゆるやか
なテーパのついた円筒状とされ、その小径１１１１１端
部が図示しないエンジンの刊気口から延びるエキゾース
ト共イブに着脱自在又は一体重に連結されるようになっ
ている。An example of implementing the present invention will be explained with reference to the drawings.
is a muffler main body, and this muffler main body (a) has a cylindrical shape with a gentle taper, and its small diameter 11111 end is detachably attached or integrally connected to an exhaust common pipe extending from the air port of the engine (not shown). It is now possible to do so.

（ｂ）は前記マフラ本体（ａ）内に出し入れ自在に設け
られた消音管であり、後述するようにマフラ本体（ａ）
内へその大径側端部即ち排気の出口（１）から挿入され
るようになっている。１ この消音管（ｂ）は大小径の異なった２本の管部材を連
結して段付状に形成され、その挿入方向前側即ち上流側
となる大径管部（ｂｌ）内が隔壁（２）ＩＣよって仕切
られると共に、該管部（ｂｌ）及び下流側の小径管部（
ｂｚ）に夫々多数の小孔（３）が開穿されている。(b) is a muffler pipe installed in and out of the muffler body (a), and as described later, the muffler body (a)
It is inserted into the interior from its large diameter end, that is, from the exhaust outlet (1). 1 This muffling pipe (b) is formed into a stepped shape by connecting two pipe members with different diameters, and the large diameter pipe part (bl) on the front side in the insertion direction, that is, on the upstream side, has a partition wall (2 ) IC, and the pipe part (bl) and the downstream small diameter pipe part (
A large number of small holes (3) are drilled in each of the holes (bz).

（２ａ）？″ｉ前記隔壁（２）の中央に夫々開穿された
通孔である。(2a)? "i" is a through hole drilled in the center of each of the partition walls (2).

（４）は前記大径管部（ｂｌ）の開１コ端に連結された
ラッパ状の案内筒でアリ、この案内筒（４）を介してマ
フラ本体（ａ）上流からのお１気が消音管（ｂ）内へ導
入されるようになっている。(4) is a trumpet-shaped guide tube connected to the open end of the large-diameter pipe portion (bl), and air flows from upstream of the muffler body (a) through this guide tube (4). It is designed to be introduced into the muffler pipe (b).

（ｃｌ）（Ｃ２）（ｃＪ）（Ｃ４）は上記消音管（ｂ）
の外周に軸線方向に間隔をおいて溶接固着された仕切板
である。(cl) (C2) (cJ) (C4) is the above silencer pipe (b)
This is a partition plate that is welded and fixed to the outer circumference at intervals in the axial direction.

これら仕切板（ｃｌＸｃ２”１（ｃａＸｃ４）は消音管
（ｂ）とともにマフラ本体（ａ）へ挿入されその内部を
複数の室（ａｔ　）に仕切るもので、マフラ本体（ａ）
各部においてその内周にゆるく嵌め合っている。These partition plates (clXc2"1 (caXc4) are inserted into the muffler body (a) together with the muffler body (b) and partition the interior into a plurality of chambers (at).
Each part fits loosely into its inner periphery.

前記仕切板（ｃｌ）（Ｃ２）（Ｃ３）（Ｃ４）とマフラ
本体（ａ）との嵌合構造は、消音管（ｂ）の大径管部（
ｂｚ　）に固着された仕切板（ｅｘＸｃ２．）（Ｃ３）
がその外周にｆ’ｔＪＩ　ｌ原を介してマフラ本体（ａ
）　Ｋ　嵌め合い、消音管（ｂ）の挿入方向後端即ち小
径管部（ｂｚ）の後端に固着された仕切板（Ｃ４）がマ
フラ本体（ａ）内周に密接し、該本体（ａ）の出口（１
）側へ軽く引き抜ける程度に１沃め合っている。The fitting structure between the partition plate (cl) (C2) (C3) (C4) and the muffler body (a) is based on the large diameter pipe portion (
Partition plate (exXc2.) (C3) fixed to bz)
The muffler body (a
) K When fitted, the partition plate (C4) fixed to the rear end in the insertion direction of the muffler pipe (b), that is, the rear end of the small diameter pipe part (bz), is in close contact with the inner periphery of the muffler body (a), and the muffler body (a) ) exit (1
) side so that they are pressed together so that they can be easily pulled out.

（５）は前記小径管部（ｂｚ）の仕切板（Ｃ４）外周に
切欠形成されたスリットであり、このスリット（５）　
Ｔｈ介して仕切板（Ｃ４）かマフラ本体（ａ）に弾性的
に嵌め合い、仕切板（Ｃ４）及びマフラ本体（ａ）の製
作誤差を吸収できるようになっている。(5) is a slit formed in the outer periphery of the partition plate (C4) of the small diameter tube part (bz);
It is elastically fitted to the partition plate (C4) or the muffler main body (a) through Th, so that manufacturing errors of the partition plate (C4) and the muffler main body (a) can be absorbed.

（６）は同じく前記仕切ａ：ＣＣ４）にマフラ本体（ａ
）の出１コ（すと対向して籾数開穿された通孔であり、
この通孔（６）を通って排気が前記出口（１）より大気
中へ放出されるようになっている。(6) is also the muffler body (a) in the partition a: CC4).
) (It is a through hole with a number of paddy holes perforated facing it.
Exhaust gas is discharged into the atmosphere from the outlet (1) through the through hole (6).

（７）は同仕切板（Ｃ４）における７７２本体（ａ）の
出口（１）１１Ｉｌｌに突設された一対の把手であり、
この把手（７）を手又は工具でつかんで消音管（ｂ）が
マフラ本体（ａ）の出口（りより引き抜かれるようにな
っている。(7) is a pair of handles protruding from the exit (1) 11Ill of the 772 main body (a) on the partition plate (C4);
The muffler tube (b) is pulled out from the outlet of the muffler body (a) by grasping the handle (7) by hand or with a tool.

（ｄ）は上記７７２本体（ａ）内における仕切板（ｃｔ
Ｘｃ２）（Ｃ３ＸＣ４）よりも上流側に固着された当板
であシ、消音’１（ｂ）の挿入方向前端即ち案内筒（４
）を当接係止するものである。(d) is the partition plate (ct) inside the 772 main body (a).
Xc2) (C3
) is abutted and locked.

前配当板（ｄ）はマフラ本体（ａ）に嵌め合う筒状部（
ａｔ）と、その筒状部（ｄｌ）内周の径方向対称位置に
突設された係止部（ｄｚ）とからなり、前記係止部（ｄ
ｚ）に上記消音’＃　（ｂ）の案内筒（４）　′ｆｅ当
接係止するように寿っている。The front distribution plate (d) has a cylindrical portion (
at) and a locking portion (dz) protruding from the inner periphery of the cylindrical portion (dl) at a radially symmetrical position.
The guide tube (4) 'fe of the above-mentioned sound deadening '# (b) abuts and locks on the z).

＝　５− （８）（９）は前記係止部（ｄｚ）の周方向両側より７
７う本体（ａ）上流へ向かって突設された係止爪である
。= 5 - (8) (9) is 7 from both sides in the circumferential direction of the locking part (dz)
7. The main body (a) is a locking pawl that protrudes toward the upstream side.

この係止爪（８）（９）は夫々長さが長短異方っており
、対向する反対側の係止ＲＢ（ｄｚ）のものと径方向に
対向するよう設けられ、後述する挟持板（ロ））を係止
するようになっている。These locking claws (8) and (9) are anisotropic in length, and are provided so as to face the locking claws RB (dz) on the opposite side in the radial direction. b)) is designed to be locked.

（ｅ）は上記消音管（ｂ）に法き差し自在に挿通された
固定用ロンドであシ、その一端が前配当板（ｄ）を貫通
してその上流側に臨み該端部に挟持板（ｇ）が溶接固着
されると共に、他端が消音管（ｂ）後端より突出してそ
の突出部にナラ）（ｆ）が螺着されている。(e) is a fixing iron which is inserted freely into the muffling pipe (b), one end of which passes through the front distribution plate (d) and faces upstream thereof, and a clamping plate is attached to the end. (g) is fixed by welding, and the other end protrudes from the rear end of the muffling tube (b), and a lug (f) is screwed onto the protruding portion.

前記挟持板（ｇ）は当＆（ｄ）における２つの係止部（
ｄｚ）を除いた開孔部（ｄａ）’に通過し得るようマフ
ラ本体（ａ）上流へ向かって湾曲した略鼓型とされ、そ
の幅広な両端部が前記係止部（ｄｚ）の上流側Ｖｃ当接
してそれらの係止爪（８）（９）間に係止されている。The holding plate (g) has two locking parts (
The muffler body (a) has a substantially drum-shaped shape that is curved toward the upstream side so that it can pass through the openings (da)' excluding the locking portion (dz), and both wide ends thereof are on the upstream side of the locking portion (dz). Vc abuts and is locked between the locking claws (8) and (9).

一方、上記ナラ）　（ｆ）は消音Ｗ　（ｂ）の後端即ち
該管（ｂ）の外周に固着された仕切板（Ｃ４）にワッシ
ャ００を介して係合し、その締め付けによって前記挟持
板（ｇ）を当板（ｄ）の係止部（ｄｚ）に押しつけ、挟
持板（ｇ）と　６− 消音管（ｂ）前端の案内筒（４）との間に当板（ｄ）を
挾持させるようにする。On the other hand, the above oak) (f) engages with the partition plate (C4) fixed to the rear end of the sound deadening W (b), that is, the outer periphery of the pipe (b), through the washer 00, and by tightening it, the clamping plate (g) is pressed against the locking part (dz) of the contact plate (d), and the contact plate (d) is held between the clamping plate (g) and the guide tube (4) at the front end of the 6-muffler pipe (b). Let them do it.

しかして、斯る７７うの組立時においては、先ず挾持板
（ｇ）を備えた固定用ロッド（ｅ）を消音管（ｂ）へそ
の大径管部（ｂｌ）より挿通して小径管部（ｂ２）から
突出させ、その状態で消音管（ｂ）をマフラ本体（ａ）
内へ出口（１）より挿入する。Therefore, when assembling the 77, first, the fixing rod (e) equipped with the clamping plate (g) is inserted into the muffler pipe (b) from its large diameter pipe part (bl), and the small diameter pipe part is inserted into the muffler pipe (b). (b2), and in that state, attach the muffler body (a) to the muffler body (a).
Insert it inside from exit (1).

前ｉ己消音管Φ）が挿入されると、その挿入方向前端か
ら突出する固定用口、ド（ｅ）先端の挾持板（ｇ）が当
板（ｄ）に当接するので、その状態で消音管（ｂ）の挿
入を一旦休止して線管（ｂ）後端から突出する固定用ロ
ッド（ｅ）の端部をもって該ロッド（ｅ）を回動させ、
挟持板（ｇ）を回してそれを当板（ｄ）の開孔部（ｄ３
）に合致させる。When the self-muffling tube Φ) is inserted, the fixing port protruding from the front end in the direction of insertion, and the clamping plate (g) at the tip of the do (e) contact the contact plate (d), so the sound is muted in that state. Pause insertion of the tube (b) once, rotate the fixing rod (e) by holding the end of the fixing rod (e) protruding from the rear end of the wire tube (b),
Turn the holding plate (g) and insert it into the opening (d3) of the contact plate (d).
).

そして、この状態で更に消音管（ｂ）を挿入することに
より挾持板（ｇ）が当板（ｄ）を通過してその上流側に
位置すると共に、消音管（ｂ）前端の案内筒（４）が当
板（ｄ）に当接して消音管ら）の位置決めがなされる。Then, by further inserting the muffler pipe (b) in this state, the clamping plate (g) passes through the contact plate (d) and is located on the upstream side thereof, and the guide tube (4) at the front end of the muffler pipe (b) ) comes into contact with the contact plate (d) to position the muffler pipe etc.).

次いで、固定用ロッド（ｅ）だけを更にマフラ本体（ａ
）上館仰１へ挿入して回動させるわけであるが、その際
固定用ロッド（ｅ）を挿入し過ぎてそれが消音管（ｂ）
内へ入り込んでとれなくなってしまう倶れがあるので、
固定用ロッド（ｅ）の所定以上の進入を禁止すべくマフ
ラ本体（ａｌ内における当板（ｄ）よりも上流Ｉ１１］
に、固定用ロッド（ｅ）先端の挾持板（ｇ）を係ローす
る係止部材Ｏυが設けられている。Next, only the fixing rod (e) is further attached to the muffler body (a).
) Insert it into the upper building height 1 and rotate it, but at that time, the fixing rod (e) was inserted too far and it became the muffling tube (b).
There are some kinks that get deep inside and can't be removed,
In order to prevent the fixing rod (e) from entering beyond a predetermined level, the muffler body (I11 upstream of the contact plate (d) in the al)
A locking member Oυ is provided for locking the clamping plate (g) at the tip of the fixing rod (e).

Ｏ７ｌ記係止部材０１）は中央に１夾持１１Ｖ（ｇ）の
長さよりも小径な開化（ｔｉａ）が設けら′！１、その
開孔（ｉｉａ）周縁に挾持板（ｇ）を係止するように々
っている。The locking member 01) has a diameter smaller than the length of 11V (g) in the center. 1. A clamping plate (g) is attached to the periphery of the opening (IIA).

一方、前記の如く固定用Ｃｆｆ７ド（ｅ）を回動させる
とそれに伴って挾持板（ｇ）も回動し、該挟持Ｗ、　（
ｇ）がその回動方向に対応する当板（ｄ）の各係止部（
ｄｚ）における長い方の係止爪（８）に当接して係止さ
れる。On the other hand, when the fixing Cff7 (e) is rotated as described above, the clamping plate (g) also rotates, and the clamping W, (
g) corresponds to the direction of rotation of each locking portion (d) of the contact plate (d).
It comes into contact with the longer locking pawl (8) at dz) and is locked.

そして、この状態で固定用ロッド（ｅ）をマフラ本体（
ａ）の出口（１）側へ引くことにより、挾持板（ｇ）が
前記各係止部（ｄｚ）に当接してその係止爪（８）ｊ９
）間に位置される。In this state, attach the fixing rod (e) to the muffler body (
By pulling toward the exit (1) side of a), the clamping plate (g) comes into contact with each of the locking parts (dz) and the locking claws (8) j9
) is located between.

仄いで、消音管（ｂ）後端からの固定用ロッド（ｅ）の
突出部にナノ）　（ｆ）を螺合して締付ける。Then, screw the nano (f) onto the protrusion of the fixing rod (e) from the rear end of the muffling tube (b) and tighten.

これにより、挾持板瞳）と消音管（ｂ）前端の案内筒（
４）との間に当板（ｄ）が挾持され、消音ＩＷ　（ｂ）
及びその外周の仕切板（ａｌ）　（ｃｚＸｃａ）　（Ｃ
４）がマフラ本体（ａ）内の所定位置に固定される。As a result, the clamping plate pupil) and the guide tube at the front end of the muffling tube (b) (
4), the plate (d) is sandwiched between the silencing IW (b)
and the partition plate (al) (czXca) (C
4) is fixed at a predetermined position within the muffler body (a).

尚、この状態において挟持板（ｇ）は当板（ｄ）の係止
ｇ（（（ｄｚ）における係止爪（８）（９）間に位置し
ているので、振動等により挟持板Ｑ）が回動しようとし
てもその回動が係止爪ｆ８）（９）によって禁止され、
係止部（ｄｚ）から挟持板□□□）が外れて当板（ｄ）
を通過することがない。In addition, in this state, the clamping plate (g) is located between the locking claws (8) and (9) of the contact plate (d), so the clamping plate Q) due to vibration etc. Even if it attempts to rotate, the rotation is prohibited by the locking pawl f8) (9),
The clamping plate □□□) comes off from the locking part (dz) and the contact plate (d)
never pass through.

従って、消音管（ｂ）の固定状態が確実に保持され、マ
フラ本体（ａ）からの消音管（ｂ）の抜は落ちを防止で
きる。Therefore, the fixed state of the muffler pipe (b) is reliably maintained, and it is possible to prevent the muffler pipe (b) from falling when removed from the muffler body (a).

一方、上記マフラを掃除等の保守点検のために分解する
際は、先ずナツト（ｆ）　’ｉ−ゆるめて固定用口７ド
（ｅ）から外す。On the other hand, when disassembling the muffler for maintenance or inspection such as cleaning, first loosen the nut (f) and remove it from the fixing port 7 (e).

そして、把手（７）を手又は工具でつかみ消音管（ｂ）
をマフラ本体（ａ）より引き抜けば、マフラ本体（ａ）
内には固定用ロッド（ｅ）だけが残る。Then, grasp the handle (7) by hand or with a tool and remove the muffler (b).
If you pull it out from the muffler body (a), the muffler body (a)
Only the fixing rod (e) remains inside.

この状態でもマフラ本体（ａ）内の掃除を比較的容易に
行えるが、固定用ロッド（ｅ）が邪１４ｉ、であれば該
　９− ロッド（ｅ）をマフラ本体（ａ）の上流側へ押しやり、
組立時とは逆に回動させることによシ先端の挾持板（ｇ
）を当板（ｄ）の開孔部（ｄ３）に合致させる。Even in this state, the inside of the muffler body (a) can be cleaned relatively easily, but if the fixing rod (e) is 14i, then the rod (e) must be pushed upstream of the muffler body (a). Spear,
By rotating it in the opposite direction from when assembling, the clamping plate (g
) to match the opening (d3) of the backing plate (d).

そして、この状態で固定用ロッド（ｅ）を引くことによ
り挾持板（ｇ）が当板（ｄ）を通過し、固定用ロッド（
ｅ）は７７う本体（ａ）外へ抜き取られる。Then, by pulling the fixing rod (e) in this state, the clamping plate (g) passes through the contact plate (d), and the fixing rod (
e) is extracted 77 to the outside of the main body (a).

本発明は斜上の如く消音管を挿通する固定用ロッドに固
着された挟持板と、消音管の挿入方向前端との間に当板
を挾持させて消音管をマフラ本体内に固定するようにし
たので、消音管外周の仕切板を消音管の固定手段として
マフラ本体内周にきつく嵌め合わせる必要がなくなり、
従って仕切板に正確な真円度などの高い寸法精度が要求
されず製作性に優れる。In the present invention, the muffler is fixed in the muffler main body by sandwiching a holding plate fixed to a fixing rod through which the muffler is inserted and the front end of the muffler in the insertion direction. This eliminates the need to tightly fit the partition plate on the outer circumference of the muffler to the inner circumference of the muffler body as a means of fixing the muffler.
Therefore, the partition plate does not require high dimensional accuracy such as accurate roundness, and is excellent in manufacturability.

そして、消音管後端に係合するナツトをゆるめ前配当仮
の挾持状態を解除することにより、消音管をマフラ本体
から軽い力で引き抜いて取り出すことができ、マフラ本
体内の掃除等の保守点検を簡単に行うことができる。By loosening the nut that engages with the rear end of the muffler and releasing the temporary clamping state, the muffler can be pulled out from the muffler body with a light force, and maintenance and inspection such as cleaning inside the muffler body can be carried out. can be done easily.

依って所期の目的を達成し得る。Therefore, the intended purpose can be achieved.

１０−10-

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

第１図は本発明７７うを示す断面正面図、第２図は第１
図の（ｎ）　−（Ｉｔ）線断面図、第３図は第１図の（
曲矢視図、第４図はマフラの組立時における途中段階を
示す拡大断面図、第５図は当板及び挟持板を示す斜視図
である。 尚図中 （ａ）・・・マフラ本体　　　　　（ｂ）・・・消音管
（ｃＩＸｃｚＸｃａＸｃ４）　＋＋＋仕切板　（ｄ）・
・・当　板（ｅ）・・・１１ν１定用ロツド　　　　（
ｆ）・・・ナツト（ｇ）・・・挟持板　　　　　　　（
３）・・・小　孔特許出願人　　　ヤマハ発動機株式会
社１１−FIG. 1 is a cross-sectional front view showing the present invention 77, and FIG.
The (n)-(It) line cross-sectional view in the figure, Figure 3 is the (
FIG. 4 is an enlarged sectional view showing an intermediate stage in assembling the muffler, and FIG. 5 is a perspective view showing a contact plate and a clamping plate. In addition, in the figure (a)...muffler body (b)...muffler tube (cIXczXcaXc4) +++ partition plate (d)
...This plate (e)...11ν1 regular rod (
f)... Nut (g)... Holding plate (
3) ... Koko Patent Applicant Yamaha Motor Co., Ltd. 11-

Claims (1)

【特許請求の範囲】[Claims] 筒状のマフラ本体と、このマフラ本体内に出し入れ自在
に設けられ多数の小孔が開穿された消音管と、該消音管
の外周に軸線方向に間隔をおいて複数固着され、消音管
とともにマフラ本体内に挿入されて該本体内周に嵌め合
う仕切板と、マフラ本体内における仕切板よシも上流側
に固着され前記消音管の挿入方向前端を当接係止する当
板と、この当板の上流側にあって該当板及び上記消音管
を挿通する固定用ロッドに固着され、消音管前端との間
に当板を挾持する挾持板と、前記ロッドにおける消音管
後端からの突出部に螺着され、該管後端に係合するナツ
トとによシ構成した挿入式７A cylindrical muffler main body, a muffler pipe provided in the muffler main body so as to be freely put in and taken out and having a large number of small holes bored therein, and a plurality of muffler pipes fixed to the outer circumference of the muffler pipe at intervals in the axial direction, together with the muffler pipe. a partition plate that is inserted into the muffler main body and fits around the inner circumference of the main body; a stop plate that is also fixed to the upstream side of the partition plate in the muffler main body and abuts and locks the front end of the muffler pipe in the insertion direction; A clamping plate that is located on the upstream side of the plate and is fixed to a fixing rod that passes through the relevant plate and the muffler pipe, and that clamps the plate between it and the front end of the muffler pipe, and a protrusion of the rod from the rear end of the muffler pipe. An insertion type 7 configured with a nut that is screwed onto the section and engages with the rear end of the tube.
JP19322181A 1981-11-30 1981-11-30 Insertion muffler Granted JPS5893925A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19322181A JPS5893925A (en) 1981-11-30 1981-11-30 Insertion muffler

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19322181A JPS5893925A (en) 1981-11-30 1981-11-30 Insertion muffler

Publications (2)

Publication Number Publication Date
JPS5893925A true JPS5893925A (en) 1983-06-03
JPS6364605B2 JPS6364605B2 (en) 1988-12-13

Family

ID=16304323

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19322181A Granted JPS5893925A (en) 1981-11-30 1981-11-30 Insertion muffler

Country Status (1)

Country Link
JP (1) JPS5893925A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007205347A (en) * 2006-01-06 2007-08-16 Yamaha Motor Co Ltd Muffler and vehicle provided with muffler

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007205347A (en) * 2006-01-06 2007-08-16 Yamaha Motor Co Ltd Muffler and vehicle provided with muffler
JP4724611B2 (en) * 2006-01-06 2011-07-13 ヤマハ発動機株式会社 Muffler and vehicle with muffler

Also Published As

Publication number Publication date
JPS6364605B2 (en) 1988-12-13

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