JPS63212194A - Exhaust-pipe arrangement structure of motorcycle - Google Patents
Exhaust-pipe arrangement structure of motorcycleInfo
- Publication number
- JPS63212194A JPS63212194A JP3210688A JP3210688A JPS63212194A JP S63212194 A JPS63212194 A JP S63212194A JP 3210688 A JP3210688 A JP 3210688A JP 3210688 A JP3210688 A JP 3210688A JP S63212194 A JPS63212194 A JP S63212194A
- Authority
- JP
- Japan
- Prior art keywords
- exhaust pipe
- exhaust
- curved
- pipe
- expansion chamber
- 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
- 230000000630 rising effect Effects 0.000 claims description 16
- 238000005452 bending Methods 0.000 description 6
- 230000007423 decrease Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
Landscapes
- Exhaust Silencers (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は多気筒エンジンを搭載した自動二輪車（自動三
輪車を含む）における排気管の配置構造に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an arrangement structure of an exhaust pipe in a motorcycle (including a tricycle) equipped with a multi-cylinder engine.
［従来の技術］
エンジンの排気ガスは排気管を介してマフラーに導いて
から大気に放出しており、排気管は排気ガスを膨張せし
めるとともに温度を下げる役ｌ］もあり、所定以上の長
さを必要とするため、従来は排気管を湾曲させつつ後方
に延出していた。[Prior art] Engine exhaust gas is led to the muffler through an exhaust pipe and then released into the atmosphere.The exhaust pipe expands the exhaust gas and also lowers its temperature. Conventionally, the exhaust pipe was curved and extended rearward.
［発明が解決しようとする課題］
ところで、気筒部から導出された排気管はエンジン近く
を通って、後方に延出されるが、エンジン周囲にフレー
ム及び他の機器を配置する関係から排気管を自由に湾曲
させて十分な管長を得ようとすると、他の機器の配置に
支障を来たすことになる。特に多気筒エンジンの場合、
排気管の本数も複数となり、他の機器の配置に邪魔にな
らないようにして排気管長を十分に確保する必要がある
。[Problems to be Solved by the Invention] Incidentally, the exhaust pipe led out from the cylinder section passes near the engine and extends rearward, but since the frame and other equipment are arranged around the engine, the exhaust pipe is not free. If you try to obtain a sufficient pipe length by curving the pipe, it will interfere with the arrangement of other equipment. Especially for multi-cylinder engines,
The number of exhaust pipes is also plural, and it is necessary to ensure a sufficient length of the exhaust pipes so as not to interfere with the arrangement of other equipment.
そして排気管は高温部であるため、走行風による冷却の
関係から車体下方へ配置するのが望ましく、後輪を支承
するリヤスイングアームの下方で排気管を湾曲すること
も考えられるが、この場合は排気管湾曲部をリヤスイン
グアームの上下揺動に邪魔にならないよう形成する必要
がある。Since the exhaust pipe is a high-temperature part, it is desirable to place it below the car body in order to cool it with the wind while driving.It is also possible to curve the exhaust pipe below the rear swing arm that supports the rear wheels, but in this case It is necessary to form the curved part of the exhaust pipe so that it does not interfere with the vertical movement of the rear swing arm.
そこで本発明の目的は、多気筒エンジンを搭載した自動
二輪車において、排気管の中間部形状と配置に工夫を施
すことで、十分な管長を確保できるとともに、高温部を
車体下方へ配置しつつリヤスイングアームの上下揺動に
も邪魔になることがないようにした排気管配置構造を提
供することにある。Therefore, an object of the present invention is to ensure sufficient pipe length by devising the shape and arrangement of the middle part of the exhaust pipe in a motorcycle equipped with a multi-cylinder engine. To provide an exhaust pipe arrangement structure that does not interfere with the vertical swing of a swing arm.
［課題を解決するための手段］
以上の課題を達成すべく本発明は、多気筒エンジン１６
を搭載した自動二輪車において、各気筒部１７．１８か
ら導出され、エンジン１６下方を通って車体後方へ延び
る排気管２１．３１ （４１・・・、７１）のうちの１
本に中間部で一側方から他側方へ向かい湾曲して再び一
側方へ湾曲する湾曲部２２ （４２）を形成するととも
に、この湾曲部２２ （４２）をリヤスイングアーム１
１の車体側ピボット部Ｐ近傍の下方に配設したこと、を
特徴とする。[Means for Solving the Problems] In order to achieve the above problems, the present invention provides a multi-cylinder engine 16
In a motorcycle equipped with a
A curved part 22 (42) is formed in the middle part of the book, and the curved part 22 (42) curves from one side to the other side and curves back to the other side.
It is characterized in that it is disposed below near the pivot portion P on the vehicle body side of No. 1.
［作用］
例えばエンジン１６の前下方または後方の気筒部１７か
ら導出される排気管２１（４１）の中間部を一側方から
他側方へ向かい湾曲して再び一側方へ湾曲する湾曲部２
２ （４２）とすることで、部分な管長を確保できる上
、この湾曲部２２（４２）をリヤスイングアーム１１の
車体側ピボット部Ｐ近傍の下方に配設したので、リヤス
イングアーム１１の上下揺動に邪魔になることなく、高
温部を車体下方へ配置できる。[Function] For example, a curved portion that curves the middle portion of the exhaust pipe 21 (41) led out from the lower front or rear cylinder portion 17 of the engine 16 from one side to the other side, and then curves back to the one side. 2
2 (42), it is possible to secure a partial pipe length, and since this curved part 22 (42) is arranged below near the pivot part P on the vehicle body side of the rear swing arm 11, the upper and lower parts of the rear swing arm 11 are High-temperature parts can be placed below the vehicle body without getting in the way of rocking.
また実施例のように湾曲部２２ （４２）に膨張室２３
（４３）を設けることで、リヤスイングアーム１１の
揺動範囲から離れた車体下方位ｌに膨ｌ室２３ （４３
）を配置でき、また膨張室２３（４３）から斜め後上方
へ延びた立ち一ヒかり部２６（４６）は管径が小さいの
で、この立ち上がり部２６ （４６）をリヤスイングア
ーム１１側方の近接位置に配設して排気管２１ （４１
）を車体近くにレイアウトでき、全体としてコンパクト
な車体となる。In addition, as in the embodiment, the expansion chamber 23 is provided in the curved portion 22 (42).
By providing (43), the expansion chamber 23 (43) is provided in the lower direction l of the vehicle body away from the swing range of the rear swing arm 11.
) can be arranged, and since the standing part 26 (46) extending diagonally rearward and upward from the expansion chamber 23 (43) has a small pipe diameter, this rising part 26 (46) can be placed on the side of the rear swing arm 11. The exhaust pipe 21 (41
) can be laid out close to the vehicle body, resulting in a compact vehicle overall.
［実施例］ 以下に添付図面を基に実施例を説明する。[Example] Examples will be described below based on the accompanying drawings.
第１図は本発明を適用した自動二輪車の側面を示し、ｌ
はメインパイプ、２はヘッドパイプ、３はとポットプレ
ート、４はシートパイプ、５はフロントフォーク、６は
前輪、７はハンドル、８は−燃料タンク、９はシート、
１１はリヤスイングアーム、１２は後輪、１６はエンジ
ンである。FIG. 1 shows a side view of a motorcycle to which the present invention is applied;
is the main pipe, 2 is the head pipe, 3 is the pot plate, 4 is the seat pipe, 5 is the front fork, 6 is the front wheel, 7 is the handle, 8 is the fuel tank, 9 is the seat,
11 is a rear swing arm, 12 is a rear wheel, and 16 is an engine.
メインパイプｌ後部に結合した左右のとポットプレート
３にリヤスイングアーム１１がピボット軸１３で上下揺
動自在に支持され、Ｐはピボット部を示しており、また
左右のメインパイプｌ前部のガセットプレート、１４に
取り付けたハンガープレート１５とピボットプレート３
にエンジン１６が吊り下げ支持されている。A rear swing arm 11 is supported on left and right pot plates 3 connected to the rear of the main pipe l so as to be able to swing up and down on a pivot shaft 13, P indicates a pivot part, and a gusset at the front of the left and right main pipe l Hanger plate 15 and pivot plate 3 attached to plate 14
An engine 16 is suspended and supported.
第１実施例において、側面視て気筒部が前方へ上ドＶ型
に拡開した２気筒エンジン１６であり、その前下方の気
筒部１７下面に排気管２１が、前上方の気筒部１８前面
に排気管３１か夫々導出されている。ここで、前下方気
筒部１７は車体左側に位置し、前上方気筒部１８は車体
右側に位置している。In the first embodiment, the two-cylinder engine 16 has a cylinder section expanding forward in an upward V-shape when viewed from the side. Exhaust pipes 31 are led out respectively. Here, the front lower cylinder part 17 is located on the left side of the vehicle body, and the front upper cylinder part 18 is located on the right side of the vehicle body.
先ず前下方気筒部１７からの排気管２１はエンジン１６
の下方左側を通り、第２図及び第３図のように中間部で
車体右側へ大きく湾曲しており。First, the exhaust pipe 21 from the front lower cylinder section 17 is connected to the engine 16.
It passes along the lower left side of the road and curves sharply toward the right side of the vehicle at the middle part, as shown in Figures 2 and 3.
この部分を管径の大きい膨張室２３に形成するとともに
、膨張室２３の右側から上方屈曲部２４を形成し、この
上方屈曲部２４から車体左側へ向けて次第に管径が小さ
くなる折り返し部２５を形成している。This portion is formed into an expansion chamber 23 having a large diameter, and an upwardly bent portion 24 is formed from the right side of the expansion chamber 23, and a folded portion 25 is formed in which the tube diameter gradually decreases from this upwardly bent portion 24 toward the left side of the vehicle body. is forming.
これら膨張室２３．上方屈曲部２４及び折り返し部２５
により排気管２１の中間部には前後方向に貫通した空間
を有するループ状湾曲部２２が形成されることとなり、
この湾曲部２２は第１図のようにリヤスイングアーム１
１の車体側ピボット部Ｐを有するピボットプレート３の
後方近傍で、ＩＬつ下方に配設されている。These expansion chambers 23. Upper bent part 24 and folded part 25
As a result, a loop-shaped curved part 22 having a space penetrating in the front-rear direction is formed in the middle part of the exhaust pipe 21,
This curved portion 22 is connected to the rear swing arm 1 as shown in FIG.
It is disposed near the rear of the pivot plate 3 having one vehicle-side pivot portion P, and below IL.
そして前記湾曲部２２の折り返し部２５の左側から斜め
後上方へ延びる管径の小さい立ち上がり部２６か形成さ
れており、この立ち上がり部２６はりャスイングアーム
１１の中間部左側方へ近接する位置に配設されて後端に
マフラー２９が接続されている。A rising portion 26 having a small diameter is formed extending diagonally rearward and upward from the left side of the folded portion 25 of the curved portion 22, and this rising portion 26 is disposed at a position close to the left side of the intermediate portion of the swing arm 11. A muffler 29 is connected to the rear end.
また前上方気筒部１８からの排気管３１はエンジン１６
の前方で前上方気筒部１７の右方を通ってエンジン１６
の下方中央に廻り込み、この部分を管径の大きい膨張室
３３に形成し、膨張室３３から次第に管径が小さくなる
後上方屈曲部３４を形成し、この後上方屈曲部３４を前
記ループ状湾曲部２２の内方空間に通している。更に後
上方屈曲部３４から右側屈曲部３５が形成され、右側屈
曲部３５から斜め後上方へ延びる管径の小さい立ち上が
り部３６が形成され、立ち上がり部３６もリヤスイング
アーム１１の中間部右側方へ近接する位置に配設されて
後端にマフラー３９か接続されている。Further, the exhaust pipe 31 from the front upper cylinder section 18 is connected to the engine 16.
The engine 16 passes through the right side of the front upper cylinder section 17 in front of the
This part is formed into an expansion chamber 33 having a large diameter, and a rear upward bending part 34 is formed from the expansion chamber 33 with a gradually smaller diameter, and this rear upward bending part 34 is shaped like the loop. It passes through the inner space of the curved portion 22. Further, a right side bending part 35 is formed from the rear upper bending part 34, and a rising part 36 with a small pipe diameter extending diagonally rearward and upward from the right side bending part 35 is formed, and the rising part 36 also extends to the right side of the middle part of the rear swing arm 11. A muffler 39 is arranged at a close position and connected to the rear end.
尚、両排気管２１．３１は湾曲部２２の前部にて１１−
め金具２０で［Ｉｒ、いに結合されている。In addition, both exhaust pipes 21 and 31 are connected to 11-
It is connected to [Ir, I] by a fitting 20.
以−１−のように配置された両排気管２１．３１はｆｔ
５２図に示す如く所定のバンク角θ内に収められている
。Both exhaust pipes 21.31 arranged as shown below-1- are ft.
As shown in FIG. 52, the bank angle is within a predetermined bank angle θ.
次に第４図及び第５図は第２実施例を示すものてあり、
本実施例は前記と同様に側面視で気筒部か前方へ上下Ｖ
型に拡開した４気筒エンジン１６の排気管配置構造であ
る。Next, FIGS. 4 and 5 show the second embodiment,
Similar to the above, in this embodiment, when viewed from the side, the cylinder section is vertically moved forward and downward.
This is an exhaust pipe arrangement structure of a four-cylinder engine 16 expanded into a shape.
即ちエンジン１６は各左右一対の前下方気筒部１７及び
前上方気筒部１８を備えており、前下方気ｔ）部１７下
面の左右には排気管４１．５１が、前り方の気筒部１８
前面の左右にも排気管６１゜７１か夫々導出されている
。ここで、前下方気筒部１７は車体右側に寄って位置し
、前上方気筒部１８は＋ｌｉ体左側に寄って位置し、４
本の各気筒は左右交互に配設されている。That is, the engine 16 includes a pair of left and right front lower cylinder parts 17 and a front upper cylinder part 18. Exhaust pipes 41.51 are provided on the left and right sides of the lower surface of the front lower cylinder parts 17,
Exhaust pipes 61 and 71 are led out from the left and right sides of the front, respectively. Here, the front lower cylinder part 17 is located closer to the right side of the vehicle body, the front upper cylinder part 18 is located closer to the left side of the body, and the front upper cylinder part 18 is located closer to the left side of the vehicle body.
Each cylinder of the book is arranged alternately on the left and right.
先ず前下方気筒部１７の左側気筒からの排気管４１はエ
ンジン１６の下方右側を通ってから車体左側に大きく湾
曲しており、この部分を管径の大きい膨張室４３に形成
するとともに、膨張室４３の左側から上方屈曲部４４を
形成し、上方屈曲部４４から車体右側へ向けて次第に管
径が小さくなる折り返し部４５を形成している。膨張室
４３゜上方屈曲部４４及び折り返し部４５で排気管４１
中間部にループ状湾曲部４２か形成され、この湾曲部４
２も１３４図の如くとポットプレート３の後方近傍で、
且つ下方に配設されている。更に湾曲部４２の折り返し
部４５右側から斜め後上方へ延びる管径の小さい立ち上
がり部４６が形成され、立ち上がり部４６はリヤスイン
グアーム１１の前部右側方へ近接する位置に配設されて
後端にマフラー４９が接続されている。First, the exhaust pipe 41 from the left cylinder of the front lower cylinder section 17 passes through the lower right side of the engine 16 and then curves greatly toward the left side of the vehicle body, and this part is formed into an expansion chamber 43 with a large pipe diameter. An upper bent part 44 is formed from the left side of the pipe 43, and a folded part 45 whose pipe diameter gradually decreases from the upper bent part 44 toward the right side of the vehicle body is formed. Expansion chamber 43°, upper bent part 44 and folded part 45 connect exhaust pipe 41
A loop-shaped curved part 42 is formed in the middle part, and this curved part 4
2 is also near the rear of the pot plate 3 as shown in Figure 134,
Moreover, it is arranged below. Furthermore, a rising portion 46 with a small diameter is formed that extends diagonally rearward and upward from the right side of the folded portion 45 of the curved portion 42, and the rising portion 46 is disposed at a position close to the right side of the front part of the rear swing arm 11, and the rising portion 46 is disposed at a position close to the front right side of the rear swing arm 11. A muffler 49 is connected to the muffler 49.
また前下方気筒部１７の右側気筒からの排気管５１はエ
ンジン１６の下方右側を通ってから前記ループ状湾曲部
４２の後方で車体左側に大きく湾曲した管径の大きい膨
張室５３が形成され、膨張室５３左側から斜め後上方へ
延びて形成した管径の小さい立ち上がり部５６ちりャス
イングアーム１１の前部左側方へ近接する位置に配設さ
れて後端にマフラー５９が接続されている。Further, the exhaust pipe 51 from the right cylinder of the front lower cylinder section 17 passes through the lower right side of the engine 16, and then behind the loop-shaped curved section 42, an expansion chamber 53 with a large pipe diameter is formed which is largely curved toward the left side of the vehicle body. A rising portion 56 having a small diameter and extending diagonally backward and upward from the left side of the expansion chamber 53 is disposed at a position close to the front left side of the swing arm 11, and a muffler 59 is connected to the rear end.
そして前上方気筒部１８の左側気筒からの排気管６１は
エンジン１６前方で前上刃気筒部１７の左右気筒間を通
り、エンジン１６下方左側を通ってから前記ループ状湾
曲部４２の前方で車体右側に湾曲した管径の大きい膨張
室６３が形成され、膨張室６３から形成した次第に管径
が小さくなる後り力屈曲部６４を前記ループ状湾曲部４
２の内方空間に通している。更に後上方屈曲部６４から
右側斜め後上方へ延びて形成した管径の小さい立ちＬか
り部６６は前記排気管４１の立ち上がり部４６下方を通
って後端にマフラー６９が接続されている。The exhaust pipe 61 from the left cylinder of the front upper cylinder part 18 passes between the left and right cylinders of the front upper blade cylinder part 17 in front of the engine 16, passes below the engine 16 on the left side, and then passes through the vehicle body in front of the loop-shaped curved part 42. An expansion chamber 63 with a large diameter curved to the right is formed, and a backward bending portion 64 formed from the expansion chamber 63 and having a gradually smaller diameter is connected to the loop-shaped curved portion 4.
It passes through the inner space of 2. Further, a standing L-shaped portion 66 having a small pipe diameter extending diagonally rearward and upward from the rear-upper bent portion 64 passes below the rising portion 46 of the exhaust pipe 41 and is connected to a muffler 69 at its rear end.
また前上方気筒部１８の右側気筒からの排気管７１はエ
ンジン１６下方で前記排気管４１．５１間を通り、前記
排気管６１の＋ｍ張室６３の前方て車体左側に湾曲した
管径の大きい膨張室７３が形成され、膨張室７３は前記
排気管４１下方で前記排気ｅｒｖ６１上方を通って左側
から後方に管径が次第に小さくなる後上方屈曲部７４か
形成され、後上方屈曲部７４から斜め後上方へ延びて形
成した管径の小さい立ち上がり部７６は前記排気Ｉｒ！
５１の立ち上がり部５６下方を通って後端にマフラー７
９が接続されている。Further, the exhaust pipe 71 from the right cylinder of the front upper cylinder section 18 passes between the exhaust pipes 41 and 51 below the engine 16, and is curved toward the left side of the vehicle body at the front of the +m expansion chamber 63 of the exhaust pipe 61. An expansion chamber 73 is formed, and the expansion chamber 73 passes below the exhaust pipe 41 and above the exhaust erv 61, and has a rear upper bent portion 74 whose pipe diameter gradually decreases from the left side to the rear, and extends diagonally from the rear upper bent portion 74. The rising portion 76 having a small diameter and extending rearward and upward is the exhaust Ir!
The muffler 7 passes through the lower part of the rising part 56 of 51 to the rear end.
9 is connected.
尚、排気管４１．５１は止め金具４０で、また排気管４
１．６１は止め金具６０で、更に排気管５１．７１は止
め金具７０で互いに夫々結合されており、このうちの止
め金具７０が車体側に正着され、そして排気管５１は止
め金具５０で車体側に止着される。In addition, the exhaust pipes 41 and 51 are fitted with a stopper 40, and the exhaust pipes 41 and 51 are
Reference numeral 1.61 is a stopper 60, and exhaust pipes 51 and 71 are connected to each other by a stopper 70. Of these, the stopper 70 is properly attached to the vehicle body, and the exhaust pipe 51 is connected to the stopper 50. It is fixed to the vehicle body.
以上の如く配置された排気管４１，５１，６１．７１も
所定のバンク角内に収められている。The exhaust pipes 41, 51, 61, and 71 arranged as described above are also accommodated within a predetermined bank angle.
このように複数の排気管を配置する場合において、その
うちの１本、例えば実施例のような■型エンジン１６の
前下方の気筒部１７または後方の気筒部等から導出され
ることから、十分な管長を確保しにくい排気管２１．４
１にループ状湾曲部２２．４２を設けることで、十分な
管長を確保することができる。また他の１本、即ち比較
的十分な管長を確保てきる前上方の気筒部１８等から導
出される排気’ｉ？３１．６１を前記ループ状湾曲部２
２．４２内に通すことで、スペースの有効利用か図れ、
且つ全ての排気管を所定のバンク角内に収めることがで
きるようになる。In the case where a plurality of exhaust pipes are arranged in this way, one of them is led out from the lower front cylinder part 17 or the rear cylinder part of the ■ type engine 16 as in the embodiment, so that there is sufficient exhaust pipe. Exhaust pipe 21.4 where it is difficult to secure the pipe length
By providing the loop-shaped curved portion 22.42 in the pipe 1, a sufficient pipe length can be ensured. In addition, the exhaust 'i?' is led out from the other one, that is, the front upper cylinder part 18, which has a relatively sufficient pipe length. 31.61 as the loop-shaped curved part 2
2. Make effective use of space by passing it inside 42.
Moreover, all the exhaust pipes can be accommodated within a predetermined bank angle.
［発明の効果］
以にのように本発明の排気管配ｌ構造を採用した自動二
輪車によれば、多気筒エンジンから導出される１本の排
気管の中間部に一側方から他側方へ向かい湾曲して再び
一側方へ湾曲する湾曲部を設けたため、十分な管長を確
保することができるとともに、この湾曲部をリヤスイン
グアームの車体側ピボット部近傍の下方に配設している
ため、リヤスイングアームの上下揺動に邪魔になること
なく高温部を車体下方へ配置することができる。[Effects of the Invention] As described above, according to the motorcycle adopting the exhaust pipe piping structure of the present invention, there is a pipe from one side to the other in the middle part of one exhaust pipe led out from a multi-cylinder engine. By providing a curved section that curves towards the rear swing arm and then curves back to one side, a sufficient tube length can be secured, and this curved section is located below near the pivot section of the rear swing arm on the vehicle body side. Therefore, the high temperature section can be placed below the vehicle body without interfering with the vertical swing of the rear swing arm.
そして実施例のように湾曲部に膨張室を設けると、リヤ
スイングアーム揺動範囲から離れた車体下方位置に膨張
室を配置することかできるとともに、膨張室から斜め後
上方へ延びた立ち上がり部の管径か小さいことから立ち
上かり部をリヤスイングアーム側方の近接位置に配設す
ることが回部となり、従って排気管を車体近くにレイア
ウトすることができ、これによって車体の全体としての
コンパクト化を達成することができる。If the expansion chamber is provided in the curved part as in the embodiment, the expansion chamber can be placed at a position below the vehicle body away from the swinging range of the rear swing arm. Due to the small diameter of the pipe, the rising part is located close to the side of the rear swing arm, making it possible to lay out the exhaust pipe close to the vehicle body, which makes the vehicle body more compact as a whole. can be achieved.
第１図は第１実施例構造を適用した自動二輪車の概略側
面図、第２図と第３図はその排気管部分の後面図及び平
面図、第４図は第２実施例に係る排気管部分の概略側面
図、第５図はその平面図である。
、尚、図面中、ｌはメインパイプ、３はとポットプレー
ト、Ｐはピボット部、１１はリヤスイングアーム、１６
はエンジン、１７．１８は気筒部、２１．３１，４１，
５１，６１．７１は排気管、２２．４２は湾曲部、２３
，３３，４３，５３゜６３．７３は膨張室、２６，３６
，４６，５６゜６６．７６は立ち上がり部、２９，３９
，４９゜５９．６９．７９はマフラーである。
第２図Fig. 1 is a schematic side view of a motorcycle to which the structure of the first embodiment is applied, Figs. 2 and 3 are a rear view and a plan view of the exhaust pipe portion thereof, and Fig. 4 is an exhaust pipe according to the second embodiment. A schematic side view of the part, and FIG. 5 is a plan view thereof. , In the drawing, l is the main pipe, 3 is the pot plate, P is the pivot part, 11 is the rear swing arm, 16
is the engine, 17.18 is the cylinder section, 21.31, 41,
51, 61.71 is the exhaust pipe, 22.42 is the curved part, 23
, 33, 43, 53° 63.73 is the expansion chamber, 26, 36
, 46, 56° 66.76 is the rising part, 29, 39
, 49°59.69.79 is a muffler. Figure 2
Claims (2)
へ延びる排気管のうちの１本に中間部で一側方から他側
方へ向かい湾曲して再び一側方へ湾曲する湾曲部を形成
するとともに、 この湾曲部をリヤスイングアームの車体側ピボット部近
傍の下方に配設したこと、 を特徴とする自動二輪車の排気管配置構造。(1) In a motorcycle equipped with a multi-cylinder engine, one of the exhaust pipes that is led out from each cylinder section, passes below the engine, and extends to the rear of the vehicle body is curved from one side to the other at the middle part. 1. An exhaust pipe arrangement structure for a motorcycle, characterized in that a curved part is formed to curve to one side again, and the curved part is arranged below near a pivot part on the vehicle body side of a rear swing arm.
さい立ち上がり部が接続され、 この立ち上がり部は前記リヤスイングアームの側方へ近
接する位置に配設されて後端にマフラーが接続されてい
ること、 を特徴とする自動二輪車の排気管配置構造。(2) In claim 1, the curved portion is provided with an expansion chamber, and a rising portion with a small diameter pipe extending diagonally rearward and upward from the curved portion is connected to the expansion chamber, and the rising portion is connected to the expansion chamber. An exhaust pipe arrangement structure for a motorcycle, characterized in that a muffler is disposed at a position adjacent to the side of the rear swing arm and connected to a rear end thereof.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3210688A JPS63212194A (en) | 1988-02-15 | 1988-02-15 | Exhaust-pipe arrangement structure of motorcycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3210688A JPS63212194A (en) | 1988-02-15 | 1988-02-15 | Exhaust-pipe arrangement structure of motorcycle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63212194A true JPS63212194A (en) | 1988-09-05 |
| JPH0413197B2 JPH0413197B2 (en) | 1992-03-06 |
Family
ID=12349644
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3210688A Granted JPS63212194A (en) | 1988-02-15 | 1988-02-15 | Exhaust-pipe arrangement structure of motorcycle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63212194A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0411593A (en) * | 1990-04-27 | 1992-01-16 | Honda Motor Co Ltd | Motorcycle |
| JPH0481384A (en) * | 1990-07-24 | 1992-03-16 | Honda Motor Co Ltd | Motor-bicycle equipped with v-type engine |
| JP2003048591A (en) * | 2001-08-02 | 2003-02-18 | Honda Motor Co Ltd | Exhaust system for motorcycle |
| JP2012116484A (en) * | 2007-01-17 | 2012-06-21 | Polaris Industries Inc | Two wheeled vehicle |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6069230A (en) * | 1983-09-26 | 1985-04-19 | Yamaha Motor Co Ltd | Exhaust apparatus for motorcycle |
-
1988
- 1988-02-15 JP JP3210688A patent/JPS63212194A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6069230A (en) * | 1983-09-26 | 1985-04-19 | Yamaha Motor Co Ltd | Exhaust apparatus for motorcycle |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0411593A (en) * | 1990-04-27 | 1992-01-16 | Honda Motor Co Ltd | Motorcycle |
| JPH0481384A (en) * | 1990-07-24 | 1992-03-16 | Honda Motor Co Ltd | Motor-bicycle equipped with v-type engine |
| JP2003048591A (en) * | 2001-08-02 | 2003-02-18 | Honda Motor Co Ltd | Exhaust system for motorcycle |
| JP4546004B2 (en) * | 2001-08-02 | 2010-09-15 | 本田技研工業株式会社 | Motorcycle exhaust system |
| JP2012116484A (en) * | 2007-01-17 | 2012-06-21 | Polaris Industries Inc | Two wheeled vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0413197B2 (en) | 1992-03-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |