JPS6221736Y2 - - Google Patents
Info
- Publication number
- JPS6221736Y2 JPS6221736Y2 JP12722182U JP12722182U JPS6221736Y2 JP S6221736 Y2 JPS6221736 Y2 JP S6221736Y2 JP 12722182 U JP12722182 U JP 12722182U JP 12722182 U JP12722182 U JP 12722182U JP S6221736 Y2 JPS6221736 Y2 JP S6221736Y2
- Authority
- JP
- Japan
- Prior art keywords
- air cleaner
- pipe
- elliptical
- communication
- outer shape
- 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.)
- Expired
Links
- 239000002828 fuel tank Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 210000003127 knee Anatomy 0.000 description 1
- 210000002414 leg Anatomy 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Landscapes
- Branch Pipes, Bends, And The Like (AREA)
Description
【考案の詳細な説明】
本考案はエアクリーナとキヤブレータとを連結
するエンジン吸気通路の連通管に関し、特にイン
ライン４気筒エンジンを搭載した自動二輪車に用
いて好適なエンジン吸気通路の連通管に関する。[Detailed Description of the Invention] The present invention relates to a communication pipe for an engine intake passage that connects an air cleaner and a carburetor, and particularly to a communication pipe for an engine intake passage suitable for use in a motorcycle equipped with an inline four-cylinder engine.
従来、インライン４気筒エンジンを搭載した自
動二輪車では、４個のキヤブレータに対応して４
本の連通管が車体左右方向に配列され、これら連
通管が各々エアクリーナに嵌合した構成となつて
いたので、連通管とエアクリーナの嵌合部近傍の
車体左右方向の寸法が大となり、車体本体からの
突出量が多くなるため、車幅が広くなり、スリム
な車体構造を得るにも限界があつた。特に上記嵌
合部の側方にはライダーの膝部分が位置する故、
車体本体からの突出量が多いとライダーが足を開
いて乗ることになるため車体本体からの突出量が
少ない方が望ましい。 Conventionally, motorcycles equipped with an inline 4-cylinder engine have 4 carburetors.
Since the communication pipes were arranged in the left-right direction of the car body and each of these communication pipes was fitted into an air cleaner, the dimensions in the left-right direction of the car body near the fitting part of the communication pipe and the air cleaner became large. This increased the amount of protrusion from the front, making the car wider, and there was a limit to the ability to achieve a slim body structure. In particular, since the rider's knees are located on the side of the above-mentioned fitting part,
If the amount of protrusion from the vehicle body is large, the rider will have to spread his legs while riding, so it is desirable that the amount of protrusion from the vehicle body is small.
そこで、本考案はエアクリーナとの嵌合部近傍
の車体本体からの突出量を少なくすることにより
車幅を挟くし車体のスリムさを高めたエンジン吸
気通路の連通管を提供することを目的とする。 Therefore, the purpose of the present invention is to provide a communication pipe for an engine intake passage that narrows the vehicle width and enhances the slimness of the vehicle body by reducing the amount of protrusion from the vehicle body near the fitting part with the air cleaner. .
この目的を達成するために、本考案によるエン
ジン吸気通路の連通管は、エアクリーナ側の外形
が楕円の２つの管部材からなり、この２つの管部
材の楕円部分を合わせて外形を円に近づけた形状
となつている。 In order to achieve this objective, the communication pipe of the engine intake passage according to the present invention consists of two pipe members with an elliptical outer shape on the air cleaner side, and the outer shape is approximated to a circle by aligning the elliptical parts of these two pipe members. It has a shape.
以下、図面を用いて本考案の実施例を説明す
る。第１図は本考案に係る自動二輪車の側面図で
ある。図において、ヘツドパイプ１、このヘツド
パイプ１に連なる１本のメインチユーブ２及び左
右のダウンチユーブ３、ブラケツト４を介してメ
インチユーブ２及び左右のダウンチユーブ３に結
合した左右のリヤチユーブ５により車体フレーム
が構成されており、メインチユーブ２には燃料タ
ンク６が跨設され、この燃料タンク６の下方には
ダブル・オーバヘツド・カムシヤフトのインライ
ン４気筒エンジン７が配設され、さらに４個のキ
ヤブレータ８が車体左右方向に直線配列されてい
る。燃料タンク６の後端部及びこの後方に位置す
るシート９の下方にはエアクリーナ１０が配設さ
れ、第２図Ａ〜Ｄに示す様な２つの連通管１１，
１２によつてキヤブレータ８と連結されている。
連通管１１，１２はゴム材からなり、吸振性を有
している。 Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a side view of a motorcycle according to the present invention. In the figure, the vehicle body frame is composed of a head pipe 1, one main tube 2 connected to the head pipe 1, left and right down tubes 3, and left and right rear tubes 5 connected to the main tube 2 and the left and right down tubes 3 via brackets 4. A fuel tank 6 is installed across the main tube 2, and an inline 4-cylinder engine 7 with a double overhead camshaft is installed below the fuel tank 6, and four carburetors 8 are installed on the left and right sides of the vehicle. arranged in a straight line in the direction. An air cleaner 10 is disposed at the rear end of the fuel tank 6 and below the seat 9 located behind the fuel tank 6, and includes two communication pipes 11 and 10, as shown in FIGS.
It is connected to the carburetor 8 by 12.
The communication pipes 11 and 12 are made of rubber material and have vibration absorbing properties.
第２図Ａ〜Ｄにおいて、連通管１１はエアクリ
ーナ側（図の右側）の外形が楕円の２つの管部材
１１Ａ，１１Ｂからなり、この２つの管部材１１
Ａ，１１Ｂの楕円部分を合わせて外形を円に近づ
けた形状となつており、ゴム材によつて一体形成
されている。すなわち、２つの管部材１１Ａ，１
１Ｂの楕円部分が一体となつた吸入部１１ｃとこ
の吸入部１１ｃから分岐した２つの排出部１１
ａ，１１ｂとを有し、吸入部１１ｃには分離壁１
１ｄによつて分離された２つの楕円形状の吸入口
１１ｅ，１１ｆが形成され、各々２つの排出部１
１ａ，１１ｂに形成された排出口１１ｇ，１１ｈ
と連通している。２つの排出部１１ａ，１１ｂは
２つのキヤブレータに嵌合した後、締付部１１
ｊ，１１ｊにて締付けバンド等により締付け固定
される。吸入部１１ｃの外周には全周に亘つて２
つの突起１１ｋ，１１ｌが所定の間隔をなして設
けられ、この２つの突起１１ｋ，１１ｌ間でエア
クリーナ１０の筐体に嵌合する。一方の突起１１
ｋは他方の突起１１ｌに向つて僅かに傾斜してお
り、これによれば突起１１ｋの弾性によつて吸入
部１１ｃがエアクリーナ１０の筐体に密接嵌合
し、両者間の気密性が確実に保たれることにな
る。また連通管１１の中間部外周には分岐部分の
補強のためにリブ１１ｍが設けられている。な
お、連通管１２も連通管１１と同様の構成となつ
ている。 In FIGS. 2A to 2D, the communication pipe 11 consists of two pipe members 11A and 11B each having an oval outer shape on the air cleaner side (right side in the figure).
It has a shape in which the elliptical parts of A and 11B are combined to approximate a circle, and is integrally formed from a rubber material. That is, the two pipe members 11A, 1
A suction part 11c in which the elliptical part of 1B is integrated and two discharge parts 11 branched from this suction part 11c.
a, 11b, and a separation wall 1 is provided in the suction portion 11c.
Two elliptical suction ports 11e and 11f are formed separated by 1d, and each has two discharge portions 1.
Discharge ports 11g and 11h formed in 1a and 11b
It communicates with After the two discharge parts 11a and 11b are fitted into the two carburetors, the tightening part 11
It is tightened and fixed at j and 11j with a tightening band or the like. 2 along the entire circumference of the suction part 11c.
Two protrusions 11k, 11l are provided at a predetermined interval, and fit into the casing of the air cleaner 10 between the two protrusions 11k, 11l. One protrusion 11
k is slightly inclined toward the other protrusion 11l, so that the elasticity of the protrusion 11k allows the suction part 11c to fit tightly into the housing of the air cleaner 10, ensuring airtightness between the two. It will be preserved. Further, a rib 11m is provided on the outer periphery of the intermediate portion of the communication pipe 11 to reinforce the branched portion. Note that the communication pipe 12 also has the same configuration as the communication pipe 11.
かかる連通管１１，１２は、第３図に示す様
に、上方から下方に斜めに延びるメインチユーブ
２を挾んで配置され、各排出部１１ａ，１１ｂ，
１２a.１２ｂが４個のキヤブレータ８（第１図
示）に接続され、各吸入部１１ｃ，１２ｃがエア
クリーナ１０に接続される。エアクリーナ１０側
の接続は２箇所で良いため取付けが容易であり、
組付時間も短縮できる。また、連通管１１，１２
の各吸入部１１ｃ，１２ｃが各々外形が楕円の２
本の管部材１１Ａ，１１Ｂを一体にした構成であ
るので、第３図から明らかな様に、従来外形が円
形の４本の連通管が各々エアクリーナに嵌合して
いた場合に比し、２本の管部材の内側の嵌合部分
が不要となると共に楕円形状であるが故、その分
連通管１１，１２とエアクリーナ１０の嵌合部の
幅を縮小できると共に、剛性が低下し易い楕円部
分を補強するためのこの楕円部分を合わせて外形
を円に近づけたので剛性の低下も防止できる。な
お、４本の連通管を用いた場合の嵌合部の幅は第
３図に二点鎖線で示す如くである。 As shown in FIG. 3, these communication pipes 11 and 12 are arranged sandwiching the main tube 2 that extends diagonally from above to below, and are connected to the respective discharge portions 11a, 11b,
12a and 12b are connected to four carburetors 8 (shown in the first diagram), and each suction part 11c and 12c is connected to an air cleaner 10. Installation is easy because only two connections are required on the air cleaner 10 side.
Assembly time can also be reduced. In addition, the communication pipes 11 and 12
Each suction part 11c, 12c has an elliptical outer shape.
Since it has a structure in which two pipe members 11A and 11B are integrated, as is clear from FIG. Since the fitting part on the inside of the main pipe member is unnecessary and has an elliptical shape, the width of the fitting part between the communication pipes 11 and 12 and the air cleaner 10 can be reduced accordingly, and the elliptical part where the rigidity tends to decrease By combining this elliptical part for reinforcement, the outer shape is made closer to a circle, which also prevents a decrease in rigidity. The width of the fitting portion when four communicating tubes are used is as shown by the two-dot chain line in FIG.
また、連通管１１，１２は外周に設けられたリ
ブ１１ｍで補強されかつ突起１１ｋ，１１ｌにて
エアクリーナ１０との間の気密性を確実に保持で
きる構成であるので、振動体であるエンジン７側
から伝達される振動に対して極めて強く、エアク
リーナ１０側からの空気漏れがないと共に連通管
１１，１２内に２次空気が混入することもない。 In addition, the communication pipes 11 and 12 are reinforced with ribs 11m provided on the outer periphery, and the protrusions 11k and 11l are configured to ensure airtightness between them and the air cleaner 10, so the side of the engine 7 which is a vibrating body It is extremely resistant to vibrations transmitted from the air cleaner 10, and there is no air leakage from the air cleaner 10 side, and no secondary air is mixed into the communication pipes 11, 12.
以上のように、本考案によれば、２つの管部材
のエアクリーナ側の外形を楕円にし、この楕円部
分を合わせて外形を円に近づけた形状としたの
で、エアクリーナとの嵌合部の剛性を低下するこ
となくその部分の幅を従来のものに比して大幅に
縮小でき、車体側方からの突出量を少なくするこ
とができるため、車幅を狭くし車体のスリムさを
高めることができる。 As described above, according to this invention, the outer shapes of the two pipe members on the air cleaner side are made elliptical, and these elliptical parts are combined to make the outer shape approach a circle.This allows the width of the mating part with the air cleaner to be significantly reduced compared to conventional parts without reducing the rigidity of that part, and the amount of protrusion from the side of the vehicle body can be reduced, making it possible to narrow the vehicle width and make the vehicle slimmer.
第１図は本考案に係る自動二輪車の側面図、第
２図Ａ、Ｂ、Ｃ及びＤは本考案による連通管の側
面図、側断面図、平断面図及び吸入部の正面図、
第３図は２つの連通管とエアクリーナとの嵌合状
態を示す断面図である。
主要部分の符号の説明、１……ヘツドパイプ、
２……メインチユーブ、３……ダウンチユーブ、
６……燃料タンク、７……エンジン、８……キヤ
ブレータ、１０……エアクリーナ、１１……連通
管。
Fig. 1 is a side view of the motorcycle according to the present invention, Fig. 2 A, B, C, and D are side views, side sectional views, plan sectional views, and front views of the suction part of the communicating pipe according to the present invention;
FIG. 3 is a cross-sectional view showing a fitted state between two communication pipes and an air cleaner. Explanation of symbols of main parts, 1...Head pipe,
2...Main tube, 3...Down tube,
6... fuel tank, 7... engine, 8... carburetor, 10... air cleaner, 11... communicating pipe.
Claims (1)
ジン吸気通路の連通管であつて、エアクリーナ側
の外形が楕円の２つの管部材からなり、この２つ
の管部材の楕円部分を合わせて外形を円に近づけ
たことを特徴とするエンジン吸気通路の連通管。 It is a communication pipe of the engine intake passage that connects the air cleaner and the carburetor, and consists of two pipe members with an oval outer shape on the air cleaner side.The outer shape of the two pipe members is brought together to approximate a circle. A unique feature is the communication pipe for the engine intake passage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12722182U JPS5932164U (en) | 1982-08-23 | 1982-08-23 | Engine intake passage communication pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12722182U JPS5932164U (en) | 1982-08-23 | 1982-08-23 | Engine intake passage communication pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5932164U JPS5932164U (en) | 1984-02-28 |
| JPS6221736Y2 true JPS6221736Y2 (en) | 1987-06-02 |
Family
ID=30289020
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12722182U Granted JPS5932164U (en) | 1982-08-23 | 1982-08-23 | Engine intake passage communication pipe |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5932164U (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0335877Y2 (en) * | 1984-09-06 | 1991-07-30 | ||
| JP6432081B2 (en) * | 2014-11-28 | 2018-12-05 | 株式会社やまびこ | Stratified scavenging engine intake pipe unit |
-
1982
- 1982-08-23 JP JP12722182U patent/JPS5932164U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5932164U (en) | 1984-02-28 |
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