JPH07280157A - Installing structure of duct - Google Patents

Installing structure of duct

Info

Publication number
JPH07280157A
JPH07280157A JP6087445A JP8744594A JPH07280157A JP H07280157 A JPH07280157 A JP H07280157A JP 6087445 A JP6087445 A JP 6087445A JP 8744594 A JP8744594 A JP 8744594A JP H07280157 A JPH07280157 A JP H07280157A
Authority
JP
Japan
Prior art keywords
duct
chamfered
length
engaging claws
opening
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.)
Pending
Application number
JP6087445A
Other languages
Japanese (ja)
Inventor
Shinsuke Kitabayashi
新介 北林
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.)
Mahle Filter Systems Japan Corp
Original Assignee
Mahle Filter Systems Japan Corp
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 Mahle Filter Systems Japan Corp filed Critical Mahle Filter Systems Japan Corp
Priority to JP6087445A priority Critical patent/JPH07280157A/en
Publication of JPH07280157A publication Critical patent/JPH07280157A/en
Pending legal-status Critical Current

Links

Landscapes

  • Branch Pipes, Bends, And The Like (AREA)
  • Duct Arrangements (AREA)

Abstract

PURPOSE:To ease attaching/detaching work of a duct to an opening by providing a plurality of engaging claws to an end part of a duct at equally-divided positions of the circumference and providing a plurality of chamfered, inclined surfaces to a periphery of an inside surface of an opening in a vessel wall at equally divided positions of the periphery in such a manner that a total of the circumferential length of the chamfered, inclined surface is greater than that of the engaging claws and moreover it is smaller than a quantity of 'the entire circumferential length minus the total of the circumferential length of the engaging claws' together with setting the radial length (radius) of a large diameter part greater than that of the engaging claw. CONSTITUTION:Engaging claws 3 are provided to a duct 1 at equally divided positions of a circumference of the duct 1, while chamfered, inclined surfaces 9 are provided to an opening 5 of a body 4. The number of engaging claws 3 is the same as that of the chamfered, inclined surfaces 9, while the length of the engaging claws 3 in the circumferential direction is smaller than that of the chamfered, inclined surfaces 9. The radius of the engaging claw 3 is smaller than the radius of the large diameter part of the chamfered, inclined surface 9. Accordingly, despite a firm state of attachment of the duct 1 to the opening 5, attaching/detaching (especially detaching) work of the duct 1 can easily be conducted because the engaging claw 3 is guided by the chamfered, inclined surface 9.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】この発明は円形断面のダクトの容
器壁への取付構造に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for attaching a duct having a circular cross section to a container wall.

【0002】[0002]

【従来の技術】従来、容器の壁面へダクトを取付ける構
造として容器壁の開口へダクト端部を嵌入し、ダクト端
部先端に設けた係合爪を容器壁の内面側に係止させるも
のが知られており、例えば実開昭63ー73517号に
開示されている。
2. Description of the Related Art Conventionally, as a structure for attaching a duct to a wall surface of a container, a duct end portion is fitted into an opening of the container wall, and an engaging claw provided at a tip end of the duct end is locked to an inner surface side of the container wall. It is known and disclosed, for example, in Japanese Utility Model Publication No. 63-73517.

【0003】図3に示すように従来のダクトの取付構造
は、合成樹脂製のダクト20の先端部に複数の係合爪2
1を円周上に分散して設け、これを容器22(例えばエ
アクリーナのケーシング)の器壁に設けた開口23に挿
入し開口23の内側面24に複数の係合爪21を係止さ
せるものであった。開口23の周縁からガイド筒25が
突設され、その先端がダクト20のつば部26に突き当
ってストッパとなっている。またダクト端部から適宜の
長さで軸方向にスリット27が切り込まれている。
As shown in FIG. 3, in the conventional duct mounting structure, a plurality of engaging claws 2 are provided at the tip of a duct 20 made of synthetic resin.
1, which are distributed on the circumference and are inserted into an opening 23 provided in a container wall of a container 22 (for example, a casing of an air cleaner) to lock a plurality of engaging claws 21 on an inner side surface 24 of the opening 23. Met. A guide cylinder 25 is provided so as to project from the peripheral edge of the opening 23, and the tip thereof abuts on the flange portion 26 of the duct 20 to serve as a stopper. A slit 27 is cut in the axial direction from the end of the duct with an appropriate length.

【0004】[0004]

【発明が解決しようとする課題】 ダクト
20と容器22とは一旦取付けられた後、それぞれの取
替や清掃のため取付けを外す必要が生ずる。スリット2
7はその取外しの便宜のために設けられており、スリッ
ト27によってパイプ20の先端部を撓ませて係合爪2
1の係止を外すために必要である。なお係止が外れれば
ガイド筒25内の進退は係合爪21部分の弾性撓みのみ
で可能であるから、ダクト20を挿入する際は必ずしも
スリット27を必要としない。
After the duct 20 and the container 22 are once attached, it is necessary to remove them for replacement and cleaning. Slit 2
Numeral 7 is provided for the convenience of its removal, and the slit 27 bends the tip of the pipe 20 to engage the engaging claw 2.
Needed to unlock 1 If the engagement is released, the guide cylinder 25 can be moved back and forth only by elastically bending the engaging claw 21 portion, and therefore the slit 27 is not necessarily required when the duct 20 is inserted.

【0005】このように主として取外し用にスリット2
7が設けられているため、ダクト20の先端部の緊締状
態がゆるくなり振動等の外力により取付けが外れて脱落
しやすくなり、またスリット27部分から空気洩れが生
じたりする。
Thus, the slit 2 is mainly used for removal.
7 is provided, the tightened state of the distal end portion of the duct 20 is loosened, the attachment is easily detached due to external force such as vibration, and the duct 20 is easily detached, and air leakage occurs from the slit 27 portion.

【0006】[0006]

【課題を解決するための手段】円形断面のダクトの端面
円周上に外方へ突出した複数の円周方向長さの等しい係
合爪を、円周等分位置に、かつ円周方向長さの合計が円
周方向長さの1/2以下になるように設け、容器の器壁
の開口の内面側周縁に係合爪の数と同数の面取り傾斜面
を円周等分位置に配置して設け、各面取り傾斜面の円周
方向長さの合計を円周の1/2以上でありかつ「全円周
長さ−係合爪の円周方向合計長さ」より小とし、面取り
傾斜面の大径部半径を係合爪の突出半径より大とし、開
口ダクト端部を挿入して開口内面側辺縁の面取り係斜面
のない部分に係合爪を係止する構造である。
Means for Solving the Problems A plurality of engaging claws having an equal circumferential length projecting outward on the circumference of an end surface of a duct having a circular cross section are provided at equal circumferential positions and at a circumferential length. The total number of chamfers is 1/2 or less of the length in the circumferential direction, and the same number of chamfered inclined surfaces as the number of engaging claws are arranged at equal circumferential positions on the inner peripheral edge of the container wall opening. The chamfered chamfers shall have a total length in the circumferential direction of each chamfered inclined surface that is 1/2 or more of the circumference and smaller than "total circumference length-total length in the circumferential direction of engaging claws". The radius of the large diameter portion of the inclined surface is larger than the projection radius of the engaging claw, and the end of the opening duct is inserted to lock the engaging claw at a portion of the edge on the inner surface side of the opening without the chamfering inclined surface.

【0007】[0007]

【作用】ダクトを容器の器壁開口に挿入するときは係合
爪の撓みにより押し込んで嵌入させ、係合爪が開口内面
側を越える点で撓みが復元して係止される。この場合係
合爪は面取り傾斜面のない位置に合致するよう回転させ
る。この状態では従来のスリットのようなダクトを柔軟
化する構成がないので耐振性にすぐれ接続部からの洩れ
もない。
When the duct is inserted into the container wall opening of the container, it is pushed in by the bending of the engaging claws to be fitted therein, and the bending is restored at the point where the engaging claws cross the inner surface side of the opening, and the duct is locked. In this case, the engaging claw is rotated so as to match the position without the chamfered inclined surface. In this state, since there is no conventional structure for softening the duct such as the slit, the vibration resistance is excellent and there is no leakage from the connecting portion.

【0008】ダクトを取外すときはダクトを回転させて
係合爪と面取り傾斜面との位置合わせをして引き抜く
と、係合爪は面取り傾斜面の長さの内に収容され、かつ
半径が小さいから、面取り傾斜面に誘導されて軸心寄り
に撓み、引き抜くことができる。
When the duct is removed, the duct is rotated to align the engaging claw with the chamfered inclined surface and pull out, and the engaging claw is accommodated within the length of the chamfered inclined surface and has a small radius. Therefore, it can be pulled out by being guided to the chamfered inclined surface and bent toward the axial center.

【0009】[0009]

【実施例】図1に実施例を示す。合成樹脂製のダクト1
はエアクリーナ2に取付けられる空気吸入パイプであ
る。ダクト1の端部の円周を4等分した位置に外方へ突
出した係合爪3を設ける。係合爪3の円周方向長さdは
全円周長さの1/8よりわずかに小さい。エアクリーナ
2のボディ4に開口5を設け、開口5から筒状に嵌込筒
6を設け、その先端とダクト1のつば部7とを当接させ
てストッパとしている。係合爪3の半径方向突出部は開
口5の内周縁においてボディ4の内側面8に係止されて
いる。
EXAMPLE FIG. 1 shows an example. Duct made of synthetic resin 1
Is an air suction pipe attached to the air cleaner 2. Engaging claws 3 projecting outward are provided at positions where the circumference of the end of the duct 1 is divided into four equal parts. The circumferential length d of the engaging claw 3 is slightly smaller than 1/8 of the total circumferential length. An opening 5 is provided in a body 4 of the air cleaner 2, and a fitting tube 6 is provided in a tubular shape from the opening 5, and a tip thereof is brought into contact with a flange portion 7 of the duct 1 to form a stopper. The radially projecting portion of the engaging claw 3 is locked to the inner side surface 8 of the body 4 at the inner peripheral edge of the opening 5.

【0010】ボディ4は図2に示すように開口5の内面
側周縁に内側面8に向かって広がる面取り傾斜面9が形
成されている。面取り傾斜面9は円周を4等分した位置
に設けられその円周方向長さDは円周の長さの1/8よ
り大であり(円周長さー4d)より小である。また面取
り傾斜面9の大径部半径Rは、係合爪3の半径rより大
である。
As shown in FIG. 2, the body 4 is formed with a chamfered inclined surface 9 that widens toward the inner side surface 8 at the inner peripheral edge of the opening 5. The chamfered inclined surface 9 is provided at a position that divides the circumference into four equal parts, and the length D in the circumferential direction is greater than ⅛ of the length of the circumference (circumferential length-4d). The radius R of the large diameter portion of the chamfered inclined surface 9 is larger than the radius r of the engaging claw 3.

【0011】ダクト1をボディ4から引き抜くときはダ
クト1を約45゜回転させて係合爪3と面取り傾斜面9
とを合致させると係合爪3の半径方向突出端は内側面8
から外れ面取り傾斜面9に導かれて撓むから、そのまま
引き抜くことができる。
When the duct 1 is pulled out from the body 4, the duct 1 is rotated about 45 ° so that the engaging claw 3 and the chamfered inclined surface 9 are formed.
And the radial protruding end of the engaging claw 3 is aligned with the inner surface 8
Since it is guided to the chamfered inclined surface 9 and bends, it can be pulled out as it is.

【0012】[0012]

【発明の効果】この発明はダクト端部と容器壁の開口内
側側面周縁とにそれぞれ係合爪と面取り傾斜面とを、円
周上の等分位置に形成し、それらの円周方向長さの合計
を係合爪のほうが小さくなるようにし、それぞれの大径
部の半径も係合爪のほうが小になるようにしたのでダク
トにスリットを設けることなく着脱が容易になり、しか
も取付け時の弛みや脱落あるいはスリットからの洩れ等
が生じない。
As described above, according to the present invention, engaging claws and chamfered inclined surfaces are formed at equal positions on the circumference of the duct end portion and the peripheral edge of the inner side surface of the opening of the container wall, respectively, and their circumferential lengths are set. Since the engaging claws are made smaller, and the radius of each large diameter part is also smaller, the engaging claws are easy to install and remove without providing slits in the duct. There is no slack, falling off, or leakage from the slit.

【図面の簡単な説明】[Brief description of drawings]

【図1】実施例を示す図であり、(a)は取付状態、
(b)はダクトの端面(矢印A方向)を示す。
FIG. 1 is a diagram showing an embodiment, (a) is a mounted state,
(B) shows the end surface of the duct (arrow A direction).

【図2】実施例のエアクリーナボディを示す図であり、
(a)は断面図、(b)は開口の平面図(矢印B方
向)、(c)は矢印Cの開口断面図である。
FIG. 2 is a view showing an air cleaner body of the embodiment,
(A) is a sectional view, (b) is a plan view of the opening (direction of arrow B), and (c) is an opening sectional view of arrow C.

【図3】従来のダクト取付構造を示す断面図FIG. 3 is a sectional view showing a conventional duct mounting structure.

【符号の説明】[Explanation of symbols]

1 ダクト 3 係合爪 4 ボディ(容器) 5 開口 9 面取り傾斜面 1 Duct 3 Engaging Claw 4 Body (Container) 5 Opening 9 Chamfered Slope

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 円形断面のダクトの端面円周上に、外方
へ突出した複数の係合爪を設け、ダクト端部を容器の器
壁に設けた開口に嵌入して器壁の内面側に係合爪を係止
するダクトの取付構造において、係止爪を端面円周上の
等分位置に配置し、各係止爪の円周方向長さを等しく
し、その合計長さを円周長さの1/2より小とし、容器
器壁の開口内面側周縁に係合爪の数と同数の面取り傾斜
面を設け、各面取り傾斜面を円周上に等分位置に等長に
配置して円周方向長さを係合爪の円周方向長さより大と
し、かつその合計長さを「全周長さ−係合爪の円周方向
合計長さ」より小とし、さらに面取り傾斜面の大径部の
半径を係合爪の突出半径より大にしたことを特徴とする
ダクトの取付構造。
1. A plurality of engaging claws protruding outward are provided on the circumference of an end surface of a duct having a circular cross section, and the end of the duct is fitted into an opening provided in the container wall of the container to form an inner surface side of the container wall. In the duct mounting structure that locks the engaging claws, the locking claws are arranged at equal positions on the circumference of the end face, the circumferential lengths of the respective locking claws are made equal, and the total length is calculated as It is less than 1/2 of the circumferential length, and the same number of chamfered inclined surfaces as the number of engaging pawls are provided on the peripheral edge on the inner surface side of the opening of the container wall, and each chamfered inclined surface is equidistant on the circumference at equal positions. Arranged so that the length in the circumferential direction is greater than the length in the circumferential direction of the engaging claws, and the total length is smaller than "total circumference length-total length in the circumferential direction of the engaging claws". A duct mounting structure characterized in that the radius of the large diameter portion of the inclined surface is made larger than the projection radius of the engaging claw.
JP6087445A 1994-03-31 1994-03-31 Installing structure of duct Pending JPH07280157A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6087445A JPH07280157A (en) 1994-03-31 1994-03-31 Installing structure of duct

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6087445A JPH07280157A (en) 1994-03-31 1994-03-31 Installing structure of duct

Publications (1)

Publication Number Publication Date
JPH07280157A true JPH07280157A (en) 1995-10-27

Family

ID=13915066

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6087445A Pending JPH07280157A (en) 1994-03-31 1994-03-31 Installing structure of duct

Country Status (1)

Country Link
JP (1) JPH07280157A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10197006A (en) * 1996-12-27 1998-07-31 Toyotomi Co Ltd Cold air outlet of cold air dehumidifier
JP2003227646A (en) * 2002-02-06 2003-08-15 Mahle Tennex Corp Duct installing structure
JP2019060271A (en) * 2017-09-26 2019-04-18 トヨタ自動車株式会社 Air cleaner duct assembly structure

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10197006A (en) * 1996-12-27 1998-07-31 Toyotomi Co Ltd Cold air outlet of cold air dehumidifier
JP2003227646A (en) * 2002-02-06 2003-08-15 Mahle Tennex Corp Duct installing structure
JP2019060271A (en) * 2017-09-26 2019-04-18 トヨタ自動車株式会社 Air cleaner duct assembly structure

Similar Documents

Publication Publication Date Title
US5039133A (en) Suction nozzle coupling having rotatably mounted therein a connector for a suction hose
US3686896A (en) End fittings for flexible drive cables
KR100549386B1 (en) Coupling device
US5695296A (en) Connector for plates
US3963268A (en) Pipe couplings
US8596315B2 (en) Fuelling system for fuelling of a vehicle tank
JPH0235190B2 (en)
JPH04110212U (en) grommet
JP4571130B2 (en) Locking device and piping connection body having the locking device
US6752361B2 (en) Pipe supporting structure
DE59800255D1 (en) CONNECTOR FOR PIPELINES
JP2003074530A (en) Installing spacer of dash silencer
US4112979A (en) End cap for pipes
WO1994025786A1 (en) Quick-action coupling for pipes or hoses
US6884105B2 (en) Connector with snap collar latching
US4865354A (en) Conduit coupler
JPH07280157A (en) Installing structure of duct
JPH07259823A (en) Clip
JPH0659685U (en) Clamp
JP2654304B2 (en) Corrugated pipe fittings
JPH0544632Y2 (en)
JP2654306B2 (en) Corrugated pipe fittings
JPH10238675A (en) Release preventing ring
JPH083027Y2 (en) Cable grommet
JP4388291B2 (en) Rotating joint for pipes