JP3344159B2 - Seal structure of the fitting part of the intake system tubular member - Google Patents
Seal structure of the fitting part of the intake system tubular memberInfo
- Publication number
- JP3344159B2 JP3344159B2 JP12169995A JP12169995A JP3344159B2 JP 3344159 B2 JP3344159 B2 JP 3344159B2 JP 12169995 A JP12169995 A JP 12169995A JP 12169995 A JP12169995 A JP 12169995A JP 3344159 B2 JP3344159 B2 JP 3344159B2
- Authority
- JP
- Japan
- Prior art keywords
- intake system
- seal structure
- tubular member
- fitting portion
- cylindrical end
- 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 - Lifetime
Links
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- Gasket Seals (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、内燃機関の吸気系筒状
部材嵌合部のシール構造、特に吸気系の複数の構成部材
の両筒状端部を互いに嵌合する部位における吸気系筒状
部材嵌合部のシール構造に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seal structure for a fitting portion of a tubular member of an intake system of an internal combustion engine, and more particularly, to an intake system tube at a position where both tubular ends of a plurality of components of the intake system are fitted to each other. The present invention relates to a seal structure for a fitting portion of a shape member.
【０００２】[0002]
【従来の技術】内燃機関の吸気系はエンジンの吸気ポー
トとエア吸入口を有するエアクリーナとの管を連通させ
ており、エアクリーナ、吸気管、吸気量を調整するスロ
ットルボディ、他気筒の吸気脈動を干渉するサージタン
ク、吸気を各気筒に分岐する吸気多岐管等の吸気系構成
部材を順次連結することによって構成されている。2. Description of the Related Art An intake system of an internal combustion engine communicates a pipe between an intake port of the engine and an air cleaner having an air intake port, and an air cleaner, an intake pipe, a throttle body for adjusting an intake amount, and intake pulsation of other cylinders. It is configured by sequentially connecting intake system components such as a surge tank that interferes and an intake manifold that branches intake to each cylinder.
【０００３】ここでこれら各吸気系構成部材を互いに連
結する場合その部分のシール製を確保する必要がある。[0003] Here, when these intake system components are connected to each other, it is necessary to ensure the sealing of the parts.
【０００４】例えば、図５、図６に示すように、エアク
リーナ１とスロットルボディ２の各筒状端部は連結され
ていた。For example, as shown in FIGS. 5 and 6, the cylindrical ends of the air cleaner 1 and the throttle body 2 are connected.
【０００５】ここで、エアクリーナ１の筒状端部３はそ
の先端側にスリットを複数形成されたスリット形成部４
を備え、一方、スロットルボディ２はその筒状端部５を
筒状端部３に嵌挿可能に形成される。この場合、筒状端
部５にはゴム製の筒状のシール６が外嵌され、それに筒
状端部３が外嵌され、その筒状端部３を外側よりホース
バンド７が締め付けるように構成される。[0005] Here, the cylindrical end 3 of the air cleaner 1 has a slit forming part 4 having a plurality of slits formed at the tip end thereof.
On the other hand, the throttle body 2 is formed so that its cylindrical end 5 can be inserted into the cylindrical end 3. In this case, a rubber-made cylindrical seal 6 is externally fitted to the cylindrical end 5, the cylindrical end 3 is externally fitted thereto, and the hose end 7 is tightened from the outside to the cylindrical end 3. Be composed.
【０００６】ここで、図６に示すように、シール６とス
リット形成部４とが嵌合する第１嵌合部Ｌ１はホースバ
ンド７の締め付けによりスリット形成部４が容易に変位
して筒状端部５とシール６との間に十分な面圧を発生さ
せ、シール性を確保できる。Here, as shown in FIG. 6, a first fitting portion L1 in which the seal 6 and the slit forming portion 4 fit into each other is easily displaced by tightening the hose band 7, and the slit forming portion 4 is easily displaced. A sufficient surface pressure is generated between the end portion 5 and the seal 6 to ensure the sealing performance.
【０００７】[0007]
【発明が解決しようとする課題】ところが、図６に示す
ように、第１嵌合部Ｌ１ではスリット形成部４が容易に
変位して筒状端部５とシール６との間を十分な面圧でシ
ールできるが、シール６の先端部分と筒状端部３のスリ
ット形成部４以外の環状部分３０１とが嵌合する嵌合域
Ｌ２では、ホースバンド７の締め付け力が働かない。し
かも、たとえ嵌合域Ｌ２の環状部分３０１にホースバン
ド７の締め付け力を加えても、環状部分３０１は締め付
け力をシール６側に伝えることが無く、シール６の先端
部分と筒状端部３の環状部分３０１との間に十分な面圧
を発生させることができない。このため、この嵌合域Ｌ
２ではスリット形成部４より環状部分３０１とシール６
の先端部分との隙間を通り（図６の符号ａ参照）空気が
もれる可能性があり、シール性を確保できず問題と成っ
ている。However, as shown in FIG. 6, in the first fitting portion L1, the slit forming portion 4 is easily displaced, and a sufficient surface is provided between the cylindrical end portion 5 and the seal 6. Although the seal can be made by pressure, the fastening force of the hose band 7 does not work in the fitting area L2 where the tip part of the seal 6 and the annular part 301 of the cylindrical end part 3 other than the slit forming part 4 fit. Moreover, even if the tightening force of the hose band 7 is applied to the annular portion 301 of the fitting area L2, the annular portion 301 does not transmit the tightening force to the seal 6 side, and the distal end portion of the seal 6 and the cylindrical end 3 A sufficient surface pressure cannot be generated between the annular portion 301 and the annular portion 301. Therefore, the fitting area L
2, the annular portion 301 and the seal 6 are formed by the slit forming portion 4.
There is a possibility that air may leak through a gap with the tip portion of the (see reference symbol a in FIG. 6), and a problem arises in that sealing performance cannot be ensured.
【０００８】更に、スロットルボディ２の筒状端部５と
エアクリーナ１の筒状端部３との嵌合作業時において、
第１嵌合部Ｌ１ではスリット形成部４が容易に変位して
シール６を挾んでの筒状端部５との嵌合が比較的スムー
ズになされる。しかし、第２嵌合域Ｌ２では環状部分３
０１がほとんど変形せず、筒状端部５とシール６を介し
て環状部分３０１を外嵌させる場合、挿入作業に手間取
り、挿入が不完全と成る場合があり、作業性に問題があ
った。Further, when the cylindrical end 5 of the throttle body 2 and the cylindrical end 3 of the air cleaner 1 are fitted together,
In the first fitting portion L1, the slit forming portion 4 is easily displaced, so that the fitting with the cylindrical end portion 5 with the seal 6 therebetween is relatively smooth. However, in the second fitting area L2, the annular portion 3
When the annular portion 301 is fitted outside via the cylindrical end portion 5 and the seal 6 with little deformation of 01, the insertion work may be troublesome and the insertion may be incomplete, resulting in a problem in workability.
【０００９】本発明の目的は、シール性が良好でしかも
作業性のよい吸気系筒状部材嵌合部のシール構造を提供
することにある。SUMMARY OF THE INVENTION An object of the present invention is to provide a seal structure for a fitting portion of a cylindrical member of an intake system which has good sealability and good workability.
【００１０】[0010]
【課題を解決するための手段】上述の目的を達成するた
めに、請求項１の発明は、内燃機関の吸気系に設けられ
た筒状端部を有する吸気系第１部材と、同吸気系第１部
材の内側に嵌合する筒状の吸気系第２部材と、吸気系第
１部材の筒状端部の内外周面を把持すると共に軸方向断
面がコ字状をなす基部と同基部より延出する内側突出部
及び外側突出部を備えるシール部材と、内側突出部及び
外側突出部に挟持される筒状端部のスリット形成端と吸
気系第２部材との面圧を確保すべく設けられたリング状
のバンドと有し、吸気系第２部材の先端に円筒外側に向
かって全周にわたって凸部が形成され、この凸部は内側
突出部の先端より突き出た位置に形成されると共に内側
突出部の長さはスリットより短い長さに形成されること
を特徴とする。In order to achieve the above-mentioned object, the present invention is directed to an intake system first member having a cylindrical end provided in an intake system of an internal combustion engine; A cylindrical intake system second member fitted inside the first member, and a base portion gripping the inner and outer peripheral surfaces of the cylindrical end of the intake system first member and having a U-shaped cross section in the axial direction. In order to secure surface pressure between a sealing member having an inner protruding portion and an outer protruding portion extending further, a slit forming end of a cylindrical end portion sandwiched between the inner protruding portion and the outer protruding portion, and an intake system second member. With a ring-shaped band provided, a protrusion is formed at the tip of the second member of the intake system over the entire circumference toward the outside of the cylinder, and the protrusion is formed at a position protruding from the tip of the inner protrusion. In addition, the length of the inner protruding portion is formed to be shorter than the length of the slit.
【００１１】請求項２は、請求項１記載の吸気系筒状部
材嵌合部のシール構造において、吸気系第２部材は、所
定量嵌合すべく軸線方向断面がＬ字形状をなす受け部を
有すると共に、シール部材の断面コ字状基部が受け部に
当接することを特徴とする。According to a second aspect of the present invention, in the seal structure of the intake system tubular member fitting portion according to the first aspect, the intake system second member has an L-shaped cross section in the axial direction so as to be fitted by a predetermined amount. And the base of the U-shaped section of the seal member abuts on the receiving portion.
【００１２】請求項３は、請求項１記載の吸気系筒状部
材嵌合部のシール構造において、外側突出部の長さがス
リットより長く形成されることを特徴とする。According to a third aspect of the present invention, in the seal structure of the intake system tubular member fitting portion according to the first aspect, the length of the outer protruding portion is formed longer than the slit.
【００１３】請求項４は、請求項１記載の吸気系筒状部
材嵌合部のシール構造において、リング状のバンドが外
側突出部の基部側に設けられると共に筒状端部と外側突
出部との面圧を確保すべく同外側突出部を軸線に対して
垂直方向から把持する第２バンドが設けられたことを特
徴とする。According to a fourth aspect of the present invention, in the seal structure of the intake system tubular member fitting portion according to the first aspect, a ring-shaped band is provided on the base side of the outer projecting portion, and the cylindrical end and the outer projecting portion are provided. A second band is provided for gripping the outer protruding portion from a direction perpendicular to the axis in order to secure the surface pressure.
【００１４】請求項５は、請求項４記載の吸気系筒状部
材嵌合部のシール構造において、第２バンドによる第１
筒状端部の締め付け部がスリットを設けていない位置で
あることを特徴とする。According to a fifth aspect of the present invention, in the seal structure of the intake system tubular member fitting portion according to the fourth aspect, the first band formed by the second band is provided.
It is characterized in that the fastening portion of the cylindrical end is a position where no slit is provided.
【００１５】請求項６は、請求項１記載の吸気系筒状部
材嵌合部のシール構造において、吸気系第１部材がエア
ダクトであり、吸気系第２部材がスロットルボディであ
ることを特徴とする。According to a sixth aspect of the present invention, in the seal structure of the intake system tubular member fitting portion according to the first aspect, the first member of the intake system is an air duct and the second member of the intake system is a throttle body. I do.
【００１６】請求項７は、請求項１記載の吸気系筒状部
材嵌合部のシール構造において、吸気系第１部材がエア
クリーナであり、吸気系第２部材がキャブレタボディで
あることを特徴とする。According to a seventh aspect of the present invention, in the seal structure of the first embodiment, the first member of the intake system is an air cleaner and the second member of the intake system is a carburetor body. I do.
【００１７】請求項８は、請求項１記載の吸気系筒状部
材嵌合部のシール構造において、吸気系第１部材がエア
クリーナであり、吸気系第２部材がスロットルボディで
あることを特徴とする。According to an eighth aspect of the present invention, in the seal structure of the intake system tubular member fitting portion according to the first aspect, the first member of the intake system is an air cleaner and the second member of the intake system is a throttle body. I do.
【００１８】請求項９は、請求項１記載の吸気系筒状部
材嵌合部のシール構造において、吸気系第１部材及び上
記吸気系第２部材のいずれもエアダクトであることを特
徴とする。According to a ninth aspect of the present invention, in the sealing structure of the intake system tubular member fitting portion according to the first aspect, both the first member of the intake system and the second member of the intake system are air ducts.
【００１９】請求項１０は、請求項１記載の吸気系筒状
部材嵌合部のシール構造において、吸気系第１部材と上
記吸気系第２部材のいずれか一方がエアクリーナであ
り、他方がエアダクトであることを特徴とする。According to a tenth aspect of the present invention, in the seal structure of the intake system tubular member fitting portion, one of the first and second intake system members is an air cleaner, and the other is an air duct. It is characterized by being.
【００２０】[0020]
【作用】第１の発明は、内燃機関の吸気系に設けられた
筒状端部を有する吸気系第１部材と、同吸気系第１部材
の内側に嵌合する筒状の吸気系第２部材と、吸気系第１
部材の筒状端部の内外周面を把持すると共に軸方向断面
がコ字状をなす基部と同基部より延出する内側突出部及
び外側突出部を備えるシール部材と、内側突出部及び外
側突出部に挟持される筒状端部のスリット形成端と吸気
系第２部材との面圧を確保すべく設けられたリング状の
バンドとを備えるので、ここでの、内側突出部と吸気系
第２部材との間に面圧を発生でき、外側突出部と吸気系
第１部材との管に面圧を発生することができる。第２部
材の先端に円筒外側に向かって全周にわたって凸部を有
するので、目視できない内側突出部が凸部を完全に乗り
越えるのを感覚として知ることができ、嵌挿作業の完了
を容易に確認できる。According to a first aspect of the present invention, there is provided an intake system first member having a cylindrical end provided in an intake system of an internal combustion engine, and a cylindrical intake system second member fitted inside the intake system first member. Member and intake system first
A base member having a U-shaped cross-section in the axial direction and a sealing member having an inner protruding portion and an outer protruding portion extending from the base portion, the inner protruding portion and the outer protruding portion; Since there is provided a ring-shaped band provided to secure the surface pressure between the slit forming end of the cylindrical end portion sandwiched between the portions and the intake system second member, the inner protruding portion and the intake system second member are provided here. A surface pressure can be generated between the two members, and a surface pressure can be generated in the pipe between the outer protrusion and the first member of the intake system. Since the tip of the second member has a convex portion on the entire circumference toward the outside of the cylinder, it is possible to know as a sensation that the invisible protruding portion, which cannot be seen, completely passes over the convex portion, and easily confirms the completion of the fitting operation. it can.
【００２１】請求項２は、請求項１記載の吸気系筒状部
材嵌合部のシール構造において、吸気系第２部材は、所
定量嵌合すべく軸線方向断面がＬ字形状をなす受け部を
有すると共に、シール部材の断面コ字状基部が受け部に
当接することとなるので、この当接によって、必要とさ
れる嵌挿域の嵌挿作業の完了を知ることができ。According to a second aspect of the present invention, in the seal structure of the intake system tubular member fitting portion according to the first aspect, the intake system second member has an L-shaped cross section in the axial direction so as to be fitted by a predetermined amount. And the base portion of the U-shaped section of the seal member comes into contact with the receiving portion, and by this contact, it is possible to know that the required insertion work of the insertion area is completed.
【００２２】請求項３は、請求項１記載の吸気系筒状部
材嵌合部のシール構造において、外側突出部の長さがス
リットより長く形成されるので、スリットを通しての気
流のもれを防止できる。According to a third aspect of the present invention, in the seal structure of the intake system tubular member fitting portion according to the first aspect, since the length of the outer protruding portion is formed longer than the slit, leakage of airflow through the slit is prevented. it can.
【００２３】請求項４は、請求項１記載の吸気系筒状部
材嵌合部のシール構造において、リング状のバンドが外
側突出部の端部側に設けられると共に筒状端部と外側突
出部との面圧を確保すべく同外側突出部を軸線に対して
垂直方向から把持する第２バンドが設けられたので、こ
こでのリング状のバンドが外側突出部と吸気系第２部材
との間に面圧を確保でき、第２バンドが外側突出部と吸
気系第１部材との間に面圧を確保できる。According to a fourth aspect of the present invention, in the seal structure of the intake system tubular member fitting portion according to the first aspect, a ring-shaped band is provided on an end side of the outer projecting portion, and the cylindrical end and the outer projecting portion are provided. A second band is provided for gripping the outer protruding portion from the direction perpendicular to the axis in order to secure the surface pressure between the outer protruding portion and the second member of the intake system. Surface pressure can be secured between the second band and the second band can secure surface pressure between the outer protruding portion and the first member of the intake system.
【００２４】請求項５は、請求項４記載の吸気系筒状部
材嵌合部のシール構造において、第２バンドによる筒状
端部の締め付け部がスリットを設けていない位置である
ので、ここでは全周にわたって面圧を一様に発生させる
ことができる。According to a fifth aspect of the present invention, in the seal structure of the intake system tubular member fitting portion according to the fourth aspect, the fastening portion of the cylindrical end portion by the second band is a position where no slit is provided. The surface pressure can be uniformly generated over the entire circumference.
【００２５】請求項６は、請求項１記載の吸気系筒状部
材嵌合部のシール構造において、吸気系第１部材がエア
ダクトであり、吸気系第２部材がスロットルボディであ
るので、ここでのエアダクトとスロットルボディの各筒
状端部間に一様に面圧を確保できる。According to a sixth aspect of the present invention, in the seal structure of the first embodiment, the first member of the intake system is an air duct and the second member of the intake system is a throttle body. A uniform surface pressure can be secured between the air duct and each cylindrical end of the throttle body.
【００２６】請求項７は、請求項１記載の吸気系筒状部
材嵌合部のシール構造において、吸気系第１部材がエア
クリーナであり、吸気系第２部材がキャブレタボディで
あるので、ここでのエアクリーナとキャブレタボディの
各筒状端部間に一様に面圧を確保できる。According to a seventh aspect of the present invention, in the seal structure of the intake system tubular member fitting portion according to the first aspect, the first member of the intake system is an air cleaner and the second member of the intake system is a carburetor body. The surface pressure can be uniformly maintained between the air cleaner and the cylindrical ends of the carburetor body.
【００２７】請求項８は、請求項１記載の吸気系筒状部
材嵌合部のシール構造において、上記吸気系第１部材が
エアクリーナであり、上記吸気系第２部材がスロットル
ボディであるので、ここでのエアクリーナとスロットル
ボディの各筒状端部間に一様に面圧を確保できる。According to an eighth aspect of the present invention, in the seal structure of the first embodiment, the first member of the intake system is an air cleaner and the second member of the intake system is a throttle body. Here, a uniform surface pressure can be secured between the air cleaner and each cylindrical end of the throttle body.
【００２８】請求項９は、請求項１記載の吸気系筒状部
材嵌合部のシール構造において、上記吸気系第１部材及
び上記吸気系第２部材のいずれもエアダクトであるの
で、ここでの両エアダクトの各筒状端部間に一様に面圧
を確保できる。According to a ninth aspect of the present invention, in the seal structure of the intake system tubular member fitting portion according to the first aspect, both the first and second intake system members are air ducts. Surface pressure can be uniformly maintained between the cylindrical ends of both air ducts.
【００２９】請求項１０は、請求項１記載の吸気系筒状
部材嵌合部のシール構造において、上記吸気系第１部材
と上記吸気系第２部材のいずれか一方がエアクリーナで
あり、他方がエアダクトであるので、ここでのエアクリ
ーナとエアダクトの各筒状端部間に一様に面圧を確保で
きる。According to a tenth aspect, in the seal structure of the intake system tubular member fitting portion according to the first aspect, one of the intake system first member and the intake system second member is an air cleaner and the other is an air cleaner. Since it is an air duct, a uniform surface pressure can be secured between the air cleaner and the respective cylindrical ends of the air duct.
【００３０】[0030]
【実施例】図１乃至図３には本発明の一実施例としての
吸気系筒状部材嵌合部のシール構造Ａを示した。1 to 3 show a seal structure A of an intake system tubular member fitting portion as an embodiment of the present invention.
【００３１】この吸気系筒状部材嵌合部のシール構造
は、直列４気筒エンジン（以後単にエンジンと記す）１
に装着される。The seal structure of the fitting portion of the intake system tubular member is an in-line four-cylinder engine (hereinafter simply referred to as engine) 1.
Attached to.
【００３２】ここで、エンジン１は、そのシリンダヘッ
ド２の左右壁に吸気多岐管３及び図示しない排気多岐管
を一体結合している。吸気多岐管３の各先端は屈曲して
上方（紙面垂直方向）に延びサージタンク４に連通す
る。このサージタンク４はその一端（図１で右端）にス
ロットルボディ５を連結し、スロットルボディ５の先端
側は吸気系筒状部材嵌合部のシール構造Ａを介しエアク
リーナ６のダクト部７に連結される。The engine 1 has an intake manifold 3 and an exhaust manifold (not shown) integrally connected to left and right walls of a cylinder head 2 thereof. Each end of the intake manifold 3 is bent and extends upward (in the direction perpendicular to the paper surface) to communicate with the surge tank 4. The surge tank 4 has a throttle body 5 connected to one end (the right end in FIG. 1), and a distal end side of the throttle body 5 is connected to a duct portion 7 of an air cleaner 6 via a seal structure A of an intake system tubular member fitting portion. Is done.
【００３３】ここで、エアクリーナ６はエンジンのシリ
ンダヘッド２の上方に主部８を配備され、主部８はその
左右側壁より延出するブラケット９，９を介しシリンダ
ヘッド２側の取付部１０，１０にボルト止めされる。特
に、ここでの主部８はそのダクト部７及び吸気系筒状部
材嵌合部のシール構造Ａを介してシリンダヘッド側と一
体のスロットルボディ５に確実に連結され、同部分もエ
アクリーナ６の支持部としての機能を有する。即ちエア
クリーナ６の主部８は３点支持されていることと成る。Here, the air cleaner 6 has a main part 8 disposed above the cylinder head 2 of the engine, and the main part 8 is attached to the mounting parts 10, 10 on the cylinder head 2 side via brackets 9, 9 extending from the left and right side walls. It is bolted to 10. In particular, the main portion 8 here is securely connected to the throttle body 5 integral with the cylinder head side via the duct portion 7 and the seal structure A of the intake system tubular member fitting portion. It has a function as a support. That is, the main part 8 of the air cleaner 6 is supported at three points.
【００３４】エアクリーナ６のダクト部７は樹脂（例え
ばポリプロピレン）のブロー成形品であり、その先端は
後方（図１において下方）に延出する第１筒状端部１１
（図２参照）を備える。The duct portion 7 of the air cleaner 6 is a blow-molded product made of resin (for example, polypropylene), and has a first cylindrical end 11 extending rearward (downward in FIG. 1).
(See FIG. 2).
【００３５】スロットルボディ５はアルミダイキャスト
製の筒状体であり、その前側開口が第２筒状端部１２を
延出し、図示しない後方開口はサージタンク４の図示し
ない開口端に。ボルト止めされる。The throttle body 5 is a cylindrical body made of aluminum die-cast, the front opening of which extends from the second cylindrical end 12, and the rear opening (not shown) is at the open end (not shown) of the surge tank 4. It is bolted.
【００３６】サージタンク４は各気筒の吸気脈動を干渉
できる容量を備えた周知の構成を採る。The surge tank 4 has a well-known structure having a capacity capable of interfering with the intake pulsation of each cylinder.
【００３７】図２及び図３に示すように、吸気系筒状部
材嵌合部のシール構造Ａは、第１筒状端部１１を有する
吸気系第１部材としてのエアクリーナ６のダクト部７
と、第１筒状端部１１の内側に嵌合する第２筒状端部１
２を備えた吸気系第２部材としてのスロットルボディ５
と、第１筒状端部１１の内外周面ｆ１，ｆ２を把持する
と共に軸方向（Ｘ方向）断面がコ字状をなす基部１３と
同基部１３より延出する内側突出部１４及び外側突出部
１５を備えるシール部材１６と、内側突出部１４及び外
側突出部１５に挟持される第１筒状端部１１のスリット
形成端１７とスロットルボディ５の第２筒状端部１２と
の面圧を確保すべく設けられたリング状の第１バンド１
８と、第１筒状端部１１と外側突出部１５との面圧を確
保すべく外側突出部１５を軸線Ｌｏに対して垂直方向か
ら把持する第２バンド２０を備える。As shown in FIGS. 2 and 3, the seal structure A of the fitting portion of the tubular member of the intake system includes a duct portion 7 of the air cleaner 6 as the first member of the intake system having the first tubular end 11.
And the second cylindrical end 1 fitted inside the first cylindrical end 11
Body 5 as intake system second member provided with
And a base 13 having a U-shaped cross section in the axial direction (X direction) while holding the inner and outer peripheral surfaces f1 and f2 of the first cylindrical end 11, and an inner protrusion 14 and an outer protrusion extending from the base 13. The surface pressure of the seal member 16 having the portion 15, the slit forming end 17 of the first cylindrical end 11 sandwiched between the inner protruding portion 14 and the outer protruding portion 15, and the second cylindrical end 12 of the throttle body 5 Ring-shaped first band 1 provided to secure
8 and a second band 20 for gripping the outer protrusion 15 from the direction perpendicular to the axis Lo in order to secure the surface pressure between the first cylindrical end 11 and the outer protrusion 15.
【００３８】ここで、図３に示すように、リング状の第
１バンド１８が外側突出部１５の基部１３側の第１締め
付け部Ａ１に設けられる。この第１バンド１８は湾曲ベ
ルト状を成す主部１８１と主部１８１の一端より延出す
る差し込み部１８２と、主部１８１の他端に形成され、
差し込み部１８２の爪１８３を離脱可能に係止する図示
しない係合口とにより形成される。なお、これに代え
て、第１バンド（図示せず）はその主部を金属ベルトで
構成され、そのベルト両端をボルト及びナットを用いて
締め付け結合可能に構成されても良い。Here, as shown in FIG. 3, a ring-shaped first band 18 is provided on the first fastening portion A1 on the base 13 side of the outer protruding portion 15. The first band 18 is formed at a main portion 181 having a curved belt shape, an insertion portion 182 extending from one end of the main portion 181, and the other end of the main portion 181.
It is formed by an engaging port (not shown) for removably engaging the claw 183 of the insertion portion 182. Alternatively, the main part of the first band (not shown) may be formed of a metal belt, and both ends of the belt may be configured to be fastened and connected using bolts and nuts.
【００３９】第２バンド２０は第１筒状端部１１のスリ
ット１７１を設けていない位置である第２締め付け部Ａ
２に設けられる。この第２バンド２０は弾性材で形成さ
れ、全体は切欠リング状を成し、縮径方向に弾性付勢さ
れた状態で第２締め付け部Ａ２に嵌着され、これによっ
て、第２締め付け部Ａ２に第２バンド２０の弾性力を作
用させることができ、第１筒状端部１１と外側突出部１
５との間に面圧を発生可能に構成される。The second band 20 is located at a position where the slit 171 of the first cylindrical end 11 is not provided.
2 is provided. The second band 20 is formed of an elastic material, has a notch ring shape as a whole, and is fitted to the second tightening portion A2 in a state of being elastically urged in the radially decreasing direction, whereby the second tightening portion A2 is formed. The elastic force of the second band 20 can act on the first cylindrical end portion 11 and the outer projecting portion 1.
5, so that a surface pressure can be generated.
【００４０】シール部材１６はゴム製であり、内側突出
部１４及び外側突出部１５間に環状隙間１６１を形成さ
れる。ここで、基部１３より延出する内側突出部１４の
長さはスリット１９より短い長さＥ２に形成され、外側
突出部１５の長さはスリット１９より長い長さＥ３に形
成される。The sealing member 16 is made of rubber, and has an annular gap 161 formed between the inner protruding portion 14 and the outer protruding portion 15. Here, the length of the inner protruding portion 14 extending from the base 13 is formed to have a length E2 shorter than the slit 19, and the length of the outer protruding portion 15 is formed to be longer E3 than the slit 19.
【００４１】この環状隙間１６１に第１筒状端部１１が
嵌挿可能に形成され、スリット形成端１７を基部１３に
当接する状態において第１筒状端部１１の内外周面ｆ
１，ｆ２を把持する。The first cylindrical end 11 is formed so as to be fitted into the annular gap 161, and the inner and outer peripheral surfaces f of the first cylindrical end 11 are in a state where the slit forming end 17 is in contact with the base 13.
1, f2 is gripped.
【００４２】吸気系第２部材であるスロットルボディ５
の第２筒状端部１２は、所定量Ｅ１嵌合すべく軸線方向
断面がＬ字形状をなす受け部１２１を有すると共に、受
け部１２１にシール部材１６の断面コ字状の基部１３が
当接するように構成される。この受け部１２１に基部１
３が当接することによって、シール部材１６を介しての
第１筒状端部１１と第２筒状端部１２との嵌挿処理が完
了した状態に達するように形成される。Throttle body 5 as second member of intake system
The second cylindrical end portion 12 has a receiving portion 121 having an L-shaped cross section in the axial direction so as to fit a predetermined amount E1, and the base portion 13 of the U-shaped cross section of the sealing member 16 is brought into contact with the receiving portion 121. It is configured to touch. The receiving part 121 includes the base 1
3 is brought into contact with the first cylindrical end 11 and the second cylindrical end 12 via the seal member 16 so as to reach a state where the fitting process is completed.
【００４３】更に、第２筒状端部１２の先端には円筒外
側に向かって全周にわたって凸部１２２が形成される。
この凸部１２２は内側突出部１４との嵌合完了状態（図
３に実線で示す位置）において、その先端よりも突き出
た位置に形成される。このため、第２筒状端部１２の凸
部１２２が内側突出部１４と嵌挿処理される際に、作業
者には嵌挿量を黙視できないが、嵌挿処理が進んで摩擦
抵抗が急減し、相対的な押し込み力が急減した際に、感
覚的に嵌挿量が十分な状態に達したことを知ることがで
きる。Further, a projection 122 is formed at the tip of the second cylindrical end 12 over the entire circumference toward the outside of the cylinder.
The protruding portion 122 is formed at a position protruding from the tip in a state where the fitting with the inner protruding portion 14 is completed (the position indicated by the solid line in FIG. 3). For this reason, when the convex portion 122 of the second cylindrical end portion 12 is fitted with the inner protruding portion 14, the worker cannot silently observe the fitted amount, but the fitting process proceeds and the frictional resistance sharply decreases. Then, when the relative pushing force suddenly decreases, it is possible to intuitively know that the amount of insertion has reached a sufficient state.
【００４４】このような、吸気系筒状部材嵌合部のシー
ル構造Ａを用いて、吸気系第１部材としてのエアクリー
ナ６のダクト部７の第１筒状部材１１と、吸気系第２部
材としてのスロットルボディ５の第２筒状端部１２との
嵌挿作業を説明する。Using such a seal structure A of the intake system tubular member fitting portion, the first tubular member 11 of the duct portion 7 of the air cleaner 6 as the first member of the intake system and the second member of the intake system The operation of inserting the throttle body 5 into the second cylindrical end 12 will be described.
【００４５】ここでは、まず、第１筒状端部１１にシー
ル部材１６の環状隙間１６１を対向させて、押し込み、
内側突出部１４及び外側突出部１５によって内外周面ｆ
１，ｆ２を把持する。次いで、第２締め付け部Ａ２に第
２バンド２０を外嵌させ、その弾性力Ｆ２を作用させ、
第１筒状端部１１と外側突出部１５との間に面圧を発生
させる。Here, first, the annular gap 161 of the seal member 16 is pushed into the first cylindrical end portion 11 so that the annular gap 161 faces the first cylindrical end portion 11.
The inner and outer peripheral surfaces f are formed by the inner protruding portion 14 and the outer protruding portion 15.
1, f2 is gripped. Next, the second band 20 is externally fitted to the second fastening portion A2, and its elastic force F2 is applied,
A surface pressure is generated between the first cylindrical end 11 and the outer protrusion 15.
【００４６】その上で、シリンダヘッド２側のサージタ
ンク４と一体のスロットルボディ５の第２筒状部材１２
にシール部材１６付き、第１筒状端部１１を押し込み外
嵌させる。この際、図４に示すように、第２筒状端部１
２の凸部１２２が内側突出部１４に押し込まれた際に、
摩擦抵抗が生じ、比較的大きな押し込み操作力を必要と
し、２点鎖線で示す嵌挿量が十分な状態に達した際に、
相対的な押し込み力が急減し、作業者には嵌挿量を黙視
できないが、感覚的に嵌挿量が十分な状態に達したこと
を知ることができる。なお、この第１筒状端部１１を押
し込み外嵌させる際、スリット形成端１７がスリット１
７１の働きで弾性変位可能であり、この嵌挿作業を容易
化できる。Then, the second cylindrical member 12 of the throttle body 5 integrated with the surge tank 4 on the cylinder head 2 side
Then, the first tubular end 11 is pushed in and fitted outside. At this time, as shown in FIG.
When the second projection 122 is pushed into the inner projection 14,
When frictional resistance occurs, a relatively large pushing operation force is required, and when the amount of insertion shown by the two-dot chain line reaches a sufficient state,
Although the relative pushing force suddenly decreases and the operator cannot silently observe the insertion amount, the operator can intuitively know that the insertion amount has reached a sufficient state. When the first cylindrical end 11 is pushed in and fitted to the outside, the slit forming end 17 is
Elastic displacement is possible by the function of 71, and this fitting operation can be facilitated.
【００４７】この後、リング状の第１バンド１８を外側
突出部１５の第１締め付け部Ａ１に外嵌し、差し込み部
１８２を図示しない係合口に差し込み、爪１８３を離脱
可能に係止し、締め付け力Ｆ１を発生させ結合作業を完
了させる。Thereafter, the ring-shaped first band 18 is externally fitted to the first fastening portion A1 of the outer projecting portion 15, the insertion portion 182 is inserted into an engagement opening (not shown), and the claw 183 is detachably locked. The fastening operation is completed by generating the fastening force F1.
【００４８】このように、第１バンド１８が締め付け力
Ｆ１を発生させて、第２筒状部材１２とゴム製の内側突
出部１４間に面圧を発生させ、シール性を確保できる。
第２バンド２０が締め付け力Ｆ２を発生させて、第１筒
状部材１１とゴム製の外側突出部１５間に面圧を発生さ
せ、シール性を確保できる。As described above, the first band 18 generates the tightening force F1 to generate a surface pressure between the second cylindrical member 12 and the rubber inner protruding portion 14, thereby ensuring the sealing performance.
The second band 20 generates the tightening force F2 to generate a surface pressure between the first cylindrical member 11 and the rubber-made outer projecting portion 15, thereby ensuring the sealing performance.
【００４９】上述のところにおいて、吸気系第１部材と
してエアクリーナ６を吸気系第２部材としてスロットル
ボディ５を説明した。これに代えて、吸気系第１部材が
図示しないエアダクトであり、吸気系第２部材が図示し
ないスロットルボディであってもよい。更に、吸気系第
１部材が図示しないエアダクトであり、吸気系第２部材
が図示しないキャブレタボディであってもよい。更に、
吸気系第１部材が図示しない前側エアダクトであり、吸
気系第２部材が図示しない後側エアダクトであってもよ
い。更に、吸気系第１部材が図示しないエアクリーナで
あり、吸気系第２部材が図示しないエアダクトであって
もよい。これらの場合も図１の装置と同様の作用効果が
得られる。In the above, the air cleaner 6 has been described as the first member of the intake system, and the throttle body 5 has been described as the second member of the intake system. Instead, the first member of the intake system may be an air duct (not shown), and the second member of the intake system may be a throttle body (not shown). Further, the first member of the intake system may be an air duct (not shown), and the second member of the intake system may be a carburetor body (not shown). Furthermore,
The first member of the intake system may be a front air duct (not shown), and the second member of the intake system may be a rear air duct (not shown). Further, the first member of the intake system may be an air cleaner (not shown), and the second member of the intake system may be an air duct (not shown). In these cases, the same operation and effect as those of the apparatus shown in FIG. 1 can be obtained.
【００５０】[0050]
【発明の効果】本発明は、内燃機関の吸気系に設けられ
た筒状端部を有する吸気系第１部材と、同吸気系第１部
材の内側に嵌合する筒状の吸気系第２部材と、吸気系第
１部材の筒状端部の内外周面を把持すると共に軸方向断
面がコ字状をなす基部と同基部より延出する内側突出部
及び外側突出部を備えるシール部材と、内側突出部及び
外側突出部に挟持される筒状端部のスリット形成端と吸
気系第２部材との面圧を確保すべく設けられたリング状
のバンドとを備えるので、ここでの内側突出部と吸気系
第２部材との間に面圧を発生できる。このため、外側突
出部と吸気系第１部材との間に面圧を発生させ、確実に
吸気系第１部材と吸気系第２部材との間をシールでき
る。According to the present invention, there is provided an intake system first member having a cylindrical end provided in an intake system of an internal combustion engine, and a cylindrical intake system second member fitted inside the intake system first member. A member that holds the inner and outer peripheral surfaces of the cylindrical end of the first member of the intake system and has a base having an U-shaped cross section in the axial direction and an inner protrusion and an outer protrusion that extend from the base; Since there is provided a slit-shaped end of the cylindrical end portion sandwiched between the inner protruding portion and the outer protruding portion, and a ring-shaped band provided to secure a surface pressure between the intake system second member, A surface pressure can be generated between the protrusion and the second member of the intake system. For this reason, a surface pressure is generated between the outer protruding portion and the first member of the intake system, so that it is possible to reliably seal between the first member of the intake system and the second member of the intake system.
【００５１】本発明によれば、吸気系第２部材は、所定
量嵌合すべく軸線方向断面がＬ字形状をなす受け部を有
すると共に、シール部材の断面コ字状基部が受け部に当
接することとなるので、この当接によって、必要とされ
る嵌挿域の嵌挿作業の完了を知ることができる。このた
め、嵌挿作業の容易化を図れる。According to the present invention, the second member of the intake system has a receiving portion having an L-shaped cross-section in the axial direction so as to be fitted by a predetermined amount, and the base of the seal member having a U-shaped cross-section contacts the receiving portion. Since the contact is made, it is possible to know the completion of the necessary insertion work of the insertion area required by this contact. For this reason, the fitting operation can be facilitated.
【００５２】本発明によれば、第２部材の先端に円筒外
側に向かって全周にわたって凸部を形成したので、目視
できない内側突出部が凸部を完全に乗り越えるのを感覚
として知り、嵌挿作業の完了を容易に確認できる。この
ため、ここでの嵌挿作業の容易化を図れる。According to the present invention, since the convex portion is formed at the end of the second member toward the outside of the cylinder over the entire circumference, it is sensed that the invisible protruding portion, which cannot be seen, completely passes over the convex portion. Work completion can be easily confirmed. For this reason, the fitting operation here can be facilitated.
【００５３】本発明によれば、外側突出部の長さがスリ
ットより長く形成されるので、スリットを通しての気流
のもれを防止できる。このため、容易な嵌挿作業によっ
て確実にシール性を確保することができる。According to the present invention, since the length of the outer protruding portion is formed longer than the slit, it is possible to prevent the airflow from leaking through the slit. For this reason, the sealing performance can be reliably ensured by an easy fitting operation.
【００５４】本発明によれば、リング状のバンドが外側
突出部の端部側に設けられると共に筒状端部と外側突出
部との面圧を確保すべく同外側突出部を軸線に対して垂
直方向から把持する第２バンドが設けられたので、ここ
でのリング状のバンドが外側突出部と吸気系第２部材と
の間に面圧を生じさせる。このため、吸気系第１部材と
吸気系第２部材との間を確実にシールできる。According to the present invention, the ring-shaped band is provided on the end side of the outer protruding portion, and the outer protruding portion is positioned with respect to the axis in order to secure the surface pressure between the cylindrical end portion and the outer protruding portion. Since the second band gripping from the vertical direction is provided, the ring-shaped band here generates a surface pressure between the outer protruding portion and the second member of the intake system. For this reason, it is possible to reliably seal between the intake system first member and the intake system second member.
【００５５】本発明によれば、第２バンドによる筒状端
部の締め付け部がスリットを設けていない位置であるの
で、ここでは全周にわたって面圧を一様に発生させる。
このため、特に、スリットを設けていない位置でのシー
ル性がより良好となる。According to the present invention, since the fastening portion of the cylindrical end portion by the second band is a position where no slit is provided, the surface pressure is uniformly generated over the entire circumference here.
For this reason, in particular, the sealing property at the position where the slit is not provided becomes better.
【００５６】本発明によれば、吸気系第１部材がエアダ
クトであり、吸気系第２部材がスロットルボディである
ので、ここでのエアダクトとスロットルボディの各筒状
端部間にそれぞれ面圧を発生できる。このため、エアダ
クトとスロットルボディの各筒状端部間を確実にシール
できる。According to the present invention, since the first member of the intake system is an air duct and the second member of the intake system is a throttle body, a surface pressure is applied between the air duct and each cylindrical end of the throttle body. Can occur. For this reason, it is possible to reliably seal between the air duct and each cylindrical end of the throttle body.
【００５７】本発明によれば、吸気系第１部材がエアク
リーナであり、吸気系第２部材がキャブレタボディであ
るので、ここでのエアクリーナとキャブレタボディの各
筒状端部間にそれぞれ面圧を発生できる。このため、エ
アダクトとスロットルボディの各筒状端部間を確実にシ
ールできる。According to the present invention, since the first member of the intake system is an air cleaner and the second member of the intake system is a carburetor body, the surface pressure between each of the cylindrical ends of the air cleaner and the carburetor body is reduced. Can occur. For this reason, it is possible to reliably seal between the air duct and each cylindrical end of the throttle body.
【００５８】本発明によれば、吸気系第１部材がエアク
リーナであり、吸気系第２部材がスロットルボディであ
るので、ここでのエアクリーナとスロットルボディの各
筒状端部間に一様に面圧を発生できる。このため、エア
ダクトとスロットルボディの各筒状端部間を確実にシー
ルできる。According to the present invention, since the first member of the intake system is an air cleaner and the second member of the intake system is a throttle body, a uniform surface is provided between the air cleaner and each cylindrical end of the throttle body. Pressure can be generated. For this reason, it is possible to reliably seal between the air duct and each cylindrical end of the throttle body.
【００５９】本発明によれば、吸気系第１部材及び吸気
系第２部材のいずれもエアダクトであるので、ここでの
両エアダクトの各筒状端部間に一様に面圧を発生でき
る。このため、両エアダクトの各筒状端部間を確実にシ
ールできる。According to the present invention, since both the first member and the second member are air ducts, a uniform surface pressure can be generated between the cylindrical ends of both air ducts. For this reason, it is possible to reliably seal between the cylindrical ends of both air ducts.
【００６０】本発明によれば、吸気系第１部材と吸気系
第２部材のいずれか一方がエアクリーナであり、他方が
エアダクトであるので、ここでのエアクリーナとエアダ
クトの各筒状端部間に一様に面圧を発生できる。このた
め、エアクリーナとエアダクトの各筒状端部間を確実に
シールできる。According to the present invention, one of the first member of the intake system and the second member of the intake system is an air cleaner and the other is an air duct. Surface pressure can be generated uniformly. For this reason, it is possible to reliably seal between the cylindrical ends of the air cleaner and the air duct.
【図１】本発明の一実施例としての吸気系筒状部材嵌合
部のシール構造を装備するエンジン吸気系の概略平面図
である。FIG. 1 is a schematic plan view of an engine intake system provided with a seal structure of an intake system tubular member fitting portion as one embodiment of the present invention.
【図２】図１のシール構造の分解拡大平面図である。FIG. 2 is an exploded enlarged plan view of the seal structure of FIG.
【図３】図１のシール構造の拡大平面図である。FIG. 3 is an enlarged plan view of the seal structure of FIG.
【図４】図１のシール構造の嵌挿時の状態説明図であ
る。FIG. 4 is an explanatory diagram of a state at the time of insertion of the seal structure of FIG. 1;
【図５】従来の吸気系筒状部材嵌合部のシール構造の分
解平面図である。FIG. 5 is an exploded plan view of a conventional seal structure of an intake system tubular member fitting portion.
【図６】図５のシール構造の平面図である。 １ エンジン ２ シリンダヘッド ３ 吸気多岐管 ４ サージタンク ５ スロットルボディ ６ エアクリーナ ７ ダクト部 １１ 第１筒状端部 １２ 第２筒状端部 １２２ 凸部 １３ 基部 １４ 内側突出部 １５ 外側突出部 １６ シール部材 １６１ 環状隙間 １７ スリット形成端 １７１ スリット １８ 第１バンド １８１ 主部 ２０ 第２バンド ｆ１ 内周面 ｆ２ 外周面 Ａ 吸気系筒状部材嵌合部のシール構造 Ａ１ 第１締め付け部 Ａ２ 第２締め付け部 Ｌｏ 軸線FIG. 6 is a plan view of the seal structure of FIG. 5; DESCRIPTION OF SYMBOLS 1 Engine 2 Cylinder head 3 Intake manifold 4 Surge tank 5 Throttle body 6 Air cleaner 7 Duct part 11 First cylindrical end part 12 Second cylindrical end part 122 Convex part 13 Base part 14 Inside protruding part 15 Outside protruding part 16 Seal member 161 Annular gap 17 Slit forming end 171 Slit 18 First band 181 Main portion 20 Second band f1 Inner peripheral surface f2 Outer peripheral surface A Seal structure of intake system tubular member fitting portion A1 First tightening portion A2 Second tightening portion Lo Axis
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 実開 昭54−156011（ＪＰ，Ｕ) 実開 平４−104152（ＪＰ，Ｕ) 実開 平１−61453（ＪＰ，Ｕ) 実開 平３−69389（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.7，ＤＢ名) F02M 35/10 F02M 35/04 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A 54-156011 (JP, U) JP 4-104152 (JP, U) JP 1-61453 (JP, U) JP 3-U 69389 (JP, U) (58) Field surveyed (Int. Cl. 7 , DB name) F02M 35/10 F02M 35/04
Claims (10)
有する吸気系第１部材と、 同吸気系第１部材の内側に嵌合する筒状の吸気系第２部
材と、 上記筒状端部の内外周面を把持すると共に軸方向断面が
コ字状をなす基部と同基部より延出する内側突出部及び
外側突出部を備えるシール部材と、 上記内側突出部及び外側突出部に挟持される上記筒状端
部のスリット形成端と上記吸気系第２部材との面圧を確
保すべく設けられたリング状のバンドとを有し、 上記吸気系第２部材の先端に円筒外側に向かって全周に
わたって凸部が形成され、この凸部は上記内側突出部の
先端より突き出た位置に形成されると共に上記内側突出
部の長さは上記スリットより短い長さに形成される こと
を特徴とする吸気系筒状部材嵌合部のシール構造。And 1. A first member intake system having a cylindrical end portion which is provided et the intake system of the internal combustion engine, a cylindrical intake system second member to be fitted to the inside of the intake system first member, A base member having a U-shape in a cross section in the axial direction and a sealing member including an inner protruding portion and an outer protruding portion extending from the base portion, the inner protruding portion and the outer protruding portion; and a sandwiched by the cylindrical end portion of the slit forming end and the intake system second member and to ensure the surface pressure provided a ring-shaped band of the parts, the tip of the intake system second member All around the outside of the cylinder
A convex portion is formed over the entire surface.
It is formed at a position protruding from the tip and projects inward as described above.
The sealing structure of the intake system tubular member fitting portion, wherein the length of the portion is formed to be shorter than the slit .
上記軸線方向断面がＬ字形状をなす受け部を有すると共
に、上記シール部材の断面コ字状基部が上記受け部に当
接することを特徴とする請求項１記載の吸気系筒状部材
嵌合部のシール構造。2. The intake system second member has a receiving portion having an L-shaped cross section in the axial direction for fitting by a predetermined amount, and a base of the sealing member having a U-shape in cross section contacts the receiving portion. The seal structure for an intake system tubular member fitting portion according to claim 1, wherein the seal portion is in contact with the fitting portion.
長く形成されることを特徴とする請求項１記載の吸気系
筒状部材嵌合部のシール構造。3. The length of the outer projection is greater than the length of the slit.
2. The seal structure for an intake system tubular member fitting portion according to claim 1 , wherein the seal structure is formed to be long .
基部側に設けられると共に上記筒状端部と上記外側突出
部との面圧を確保すべく同外側突出部を上記軸線に対し
て垂直方向から把持する第２バンドが設けられたことを
特徴とする請求項１記載の吸気系筒状部材嵌合部のシー
ル構造。4. The method according to claim 1, wherein said ring-shaped band is
The cylindrical end and the outer protrusion provided on the base side.
To ensure the surface pressure with the part,
That the second band gripping from the vertical direction was provided
The seal structure for an intake system tubular member fitting portion according to claim 1, wherein:
締め付け部がスリットを設けていな い位置であることを
特徴とする請求項４記載の吸気系筒状部材嵌合部のシー
ル構造。5. The method according to claim 1, wherein the second band is used to move the first cylindrical end.
The clamping portion is have position has a slit
The seal structure for a fitting part of an intake system tubular member according to claim 4 .
上記吸気系第２部材がスロットルボディであることを特
徴とする請求項１記載の吸気系筒状部材嵌合部のシール
構造。6. The intake system first member is an air duct,
It is characterized in that the second member of the intake system is a throttle body.
2. The seal structure for a fitting portion of an intake system tubular member according to claim 1 .
り、上記吸気系第２部材がキャブレタボディであること
を特徴とする請求項１記載の吸気系筒状部材嵌合部のシ
ール構造。7. The intake system first member is an air cleaner.
2. The seal structure for an intake system tubular member fitting portion according to claim 1 , wherein the intake system second member is a carburetor body .
り、上記吸気系第２部材がスロットルボディであること
を特徴とする請求項１記載の吸気系筒状部材嵌合部のシ
ール構造。8. The first member of the intake system is an air cleaner.
2. The seal structure for an intake system tubular member fitting portion according to claim 1 , wherein the intake system second member is a throttle body .
材のいずれもエアダクトであることを特徴とする請求項
１記載の吸気系筒状部材嵌合部のシール構造。9. The intake system first member and the intake system second part.
2. The seal structure for an intake system tubular member fitting portion according to claim 1, wherein each of the members is an air duct .
材のいずれか一方がエアクリーナであり、他方がエアダ
クトであることを特徴とする請求項１記載の吸気系筒状
部材嵌合部のシール構造。10. The intake system first member and the intake system second part.
One of the materials is an air cleaner and the other is an air cleaner.
2. The seal structure for an intake system tubular member fitting portion according to claim 1, wherein
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12169995A JP3344159B2 (en) | 1995-05-19 | 1995-05-19 | Seal structure of the fitting part of the intake system tubular member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12169995A JP3344159B2 (en) | 1995-05-19 | 1995-05-19 | Seal structure of the fitting part of the intake system tubular member |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08312478A JPH08312478A (en) | 1996-11-26 |
| JP3344159B2 true JP3344159B2 (en) | 2002-11-11 |
Family
ID=14817699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12169995A Expired - Lifetime JP3344159B2 (en) | 1995-05-19 | 1995-05-19 | Seal structure of the fitting part of the intake system tubular member |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3344159B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006258092A (en) * | 2005-03-18 | 2006-09-28 | Kawasaki Heavy Ind Ltd | Engine for leisure vehicle |
| JP7422718B2 (en) * | 2021-09-29 | 2024-01-26 | 本田技研工業株式会社 | Internal combustion engine intake system |
-
1995
- 1995-05-19 JP JP12169995A patent/JP3344159B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH08312478A (en) | 1996-11-26 |
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