JPH0424344Y2 - - Google Patents
Info
- Publication number
- JPH0424344Y2 JPH0424344Y2 JP1984047973U JP4797384U JPH0424344Y2 JP H0424344 Y2 JPH0424344 Y2 JP H0424344Y2 JP 1984047973 U JP1984047973 U JP 1984047973U JP 4797384 U JP4797384 U JP 4797384U JP H0424344 Y2 JPH0424344 Y2 JP H0424344Y2
- Authority
- JP
- Japan
- Prior art keywords
- duct
- annular
- end side
- open end
- tapered surface
- 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
- 238000004378 air conditioning Methods 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 claims description 2
- 230000014759 maintenance of location Effects 0.000 description 6
- 238000007789 sealing Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
Landscapes
- Non-Disconnectible Joints And Screw-Threaded Joints (AREA)
- Duct Arrangements (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は自動車などの冷暖房装置のダクト接続
構造に関するものである。[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a duct connection structure for heating and cooling equipment in automobiles and the like.
従来、自動車用冷暖房装置のダクト接続構造と
して、例えば実開昭50−34943号公報に記載のよ
うに、一方のダクトの端部外周に一本の環状突起
を設けるとともに、他方のダクトの端部内周に一
本の環状凹部を設け、両ダクトの端部同志を嵌合
することにより、上記突起と凹部とを嵌合させて
接続したものが知られている。
Conventionally, as a duct connection structure for an automotive air conditioning system, as described in Japanese Utility Model Application Publication No. 50-34943, a ring-shaped projection is provided on the outer periphery of one end of one duct, and a ring-shaped projection is provided inside the end of the other duct. It is known that one annular recess is provided around the periphery, and the ends of both ducts are fitted together to connect the protrusion and the recess.
ところが、これでは突起と凹部とがそれぞれの
ダクトに一本ずつ設けられているに過ぎないた
め、嵌合保持力が小さく、振動、衝撃などが加わ
ると外れ易い欠点があり、またシール性が不充分
で空気漏れをきたす恐れがあつた。
However, since only one protrusion and one recess are provided for each duct, this method has the disadvantage that the engagement retention force is small, it easily comes off when subjected to vibrations, shocks, etc., and the sealing performance is poor. There was a risk of air leakage even though it was insufficient.
そこで、上記突起および凹部をそれぞれのダク
トに複雑個設ければ、嵌合保持力およびシール性
が向上するが、反面、ダクト同志の嵌合が困難と
なり、組付作業性が悪化する欠点がある。 Therefore, if the protrusions and recesses described above are provided in a complex number on each duct, the fitting retention force and sealing performance will be improved, but on the other hand, it will become difficult to fit the ducts together, and the assembly workability will deteriorate. .
本考案はかかる従来の問題点に鑑みてなされた
もので、その目的は、嵌合保持力およびシール性
の向上を図るとともに、組付作業性を悪化させな
い冷暖房装置のダクト接続構造を提供することに
ある。 The present invention was devised in view of such conventional problems, and its purpose is to provide a duct connection structure for air-conditioning equipment that improves fitting retention force and sealing performance, and does not deteriorate assembly workability. It is in.
上記目的を達成するために、本考案は、第１ダ
クトの一定の外径を有する端部外周に開口端側の
山高さが順次小さい２個の環状突起を一定間隔を
あけて設け、第２ダクトの端部内周に開口端側の
内径が漸次大きいテーパ面を設けるとともに、該
テーパ面の内面に２個の環状凹部を上記環状突起
の間隔と同等の間隔をあけて設け、上記テーパ面
の開口端側の環状凹部近傍の内径以下でかつ奥側
の環状凹部近傍の内径より大きくし、第１ダクト
の端部を第２ダクトの端部内に嵌入することによ
り、開口端側の環状突起が奥側の環状凹部に、後
方側の環状突起が開口端側の環状凹部に同時に嵌
合するように構成したものである。
In order to achieve the above object, the present invention provides two annular protrusions at a constant interval on the outer periphery of the end having a constant outer diameter of the first duct, the height of which is successively smaller on the open end side, and A tapered surface is provided on the inner periphery of the end of the duct, the inner diameter of which is gradually larger on the open end side, and two annular recesses are provided on the inner surface of the tapered surface at an interval equal to the distance between the annular protrusions. The annular projection on the open end side is made smaller than the inner diameter near the annular recess on the open end side and larger than the inner diameter near the annular recess on the back side, and the end of the first duct is fitted into the end of the second duct. The annular protrusion on the rear side is configured to fit into the annular recess on the back side and the annular protrusion on the open end side at the same time.
第１ダクトの端部を第２ダクトの端部に挿入し
たとき、開口端側の突起は開口端側の凹部とは嵌
合せず、テーパ面によつてスムーズに案内され
る。そして、第１ダクトを奥方まで挿入したとき
２個の突起と２個の凹部とが同時に嵌合する。そ
のため、嵌合保持力およびシール性は従来の１個
の突起と１個の凹部とを設けたものの約２倍とな
り、組付作業性は従来とほぼ同様となる。
When the end of the first duct is inserted into the end of the second duct, the protrusion on the open end side does not fit into the recess on the open end side, but is smoothly guided by the tapered surface. Then, when the first duct is inserted to the back, the two protrusions and the two recesses fit together at the same time. Therefore, the fit retention force and sealing performance are approximately twice that of the conventional structure with one protrusion and one recess, and the assembly workability is almost the same as that of the conventional structure.
第１図〜第３図は本考案の第１実施例を示し、
１は例えば冷暖房装置（図示せず）に連結された
第１ダクト、５は例えば送風口に連結された第２
ダクトで、ダクト１，５はそれぞれの端部２，６
で嵌合接続されている。
1 to 3 show a first embodiment of the present invention,
1 is a first duct connected to, for example, an air conditioning system (not shown), and 5 is a second duct connected to, for example, an air outlet.
ducts, ducts 1, 5 at their respective ends 2, 6
Connected by mating.
即ち、第ダクト１の端部２は一定の外径d0を有
しており、その外周には第２図のように２本の環
状突起３，４が一定間隔ｌをあけて周設されてい
る。このうち、開口端側の突起３の高さh1は後方
側の突起４の高さh2より低く、そのため突起３の
外径d1は突起４の外径d2より小さい。一方、第２
ダクト５の端部６内周には、開口端側の内径が漸
次大きい第１テーパ面７が設けられ、このテーパ
面７の内面に２本の環状凹部８，９が一定間隔ｌ
をあけて設けられている。上記凹部８，９の内径
D1，D2はそれぞれ突起３，４の外径d1，d2とほ
ぼ等しく設定されている。また、凹部８に隣接す
るテーパ面７の内径D3と、凹部９に隣接するテ
ーパ面７の内径D4と、上記突起３，４の外径d1，
d2との関係は次のように設定されている。 That is, the end 2 of the duct 1 has a constant outer diameter d0 , and two annular protrusions 3 and 4 are provided around the outer circumference at a constant interval l as shown in FIG. ing. Among these, the height h 1 of the protrusion 3 on the open end side is lower than the height h 2 of the protrusion 4 on the rear side, and therefore the outer diameter d 1 of the protrusion 3 is smaller than the outer diameter d 2 of the protrusion 4. On the other hand, the second
A first tapered surface 7 is provided on the inner periphery of the end 6 of the duct 5, and the inner diameter of the opening end is gradually larger.
It is set apart. Inner diameter of the above recesses 8 and 9
D 1 and D 2 are set approximately equal to the outer diameters d 1 and d 2 of the projections 3 and 4, respectively. Furthermore, the inner diameter D 3 of the tapered surface 7 adjacent to the recess 8, the inner diameter D 4 of the tapered surface 7 adjacent to the recess 9, the outer diameter d 1 of the projections 3 and 4,
The relationship with d2 is set as follows.
D3＜d1≦D4＜d2
なお、第２ダクト５の端部６の先端内面には、
第１ダクト１をスムーズに案内できるように外方
に拡開した第２テーパ面１０が形成されている。 D 3 <d 1 ≦D 4 <d 2 Furthermore, on the inner surface of the tip of the end 6 of the second duct 5,
A second tapered surface 10 is formed that expands outward so that the first duct 1 can be guided smoothly.
ここで、上記ダクト１，５の接続方法を説明す
る。まず第１ダクト１の端部２を第２ダクト５の
端部６内に嵌入すると、開口端側の突起３は第１
テーパ面１０や開口端側の凹部９と殆ど係合する
ことなく挿入され、やがて凹部８，９の中間部で
第１テーパ面７の内面と摺接しつつ奥方へ案内さ
れる。そして、突起３が凹部８近傍に達すると、
突起４が第２テーパ面１０と摺接して奥方へ案内
される。第１ダクト１をさらに強く押し込むと、
開口端側突起３が奥方の凹部８に嵌合すると同時
に、後方側突起４が開口端側凹部９に嵌合し、ダ
クト１，５の接続を完了する（第３図参照）。上
記のように、第１ダクト１の嵌入時に開口端側突
起３が第２ダクト５の開口端側凹部９に嵌合しな
いため、スムーズに嵌入でき、組付作業性が従来
の１個の場合と比べて悪化することがない。 Here, a method for connecting the ducts 1 and 5 will be explained. First, when the end 2 of the first duct 1 is fitted into the end 6 of the second duct 5, the protrusion 3 on the open end side
It is inserted without almost engaging with the tapered surface 10 or the recess 9 on the open end side, and is then guided to the back while slidingly contacting the inner surface of the first tapered surface 7 at the intermediate portion between the recesses 8 and 9. Then, when the protrusion 3 reaches the vicinity of the recess 8,
The protrusion 4 comes into sliding contact with the second tapered surface 10 and is guided to the rear. If you push the first duct 1 even harder,
At the same time as the opening end projection 3 fits into the inner recess 8, the rear projection 4 fits into the opening end recess 9, completing the connection of the ducts 1 and 5 (see FIG. 3). As mentioned above, when the first duct 1 is fitted, the opening end side protrusion 3 does not fit into the opening end side recess 9 of the second duct 5, so it can be fitted smoothly and the assembly work efficiency is as compared to the conventional one. It doesn't get any worse compared to.
ダクト１，５の接続状態において、２個の突起
３，４と２個の凹部８，９とが嵌合しているた
め、嵌合保持力およびシール性が従来の１個の場
合に比べて２倍となり、振動、衝撃を受けても容
易に外れることがなく、かつ空気漏れの心配もな
い。 When the ducts 1 and 5 are connected, the two protrusions 3 and 4 are fitted into the two recesses 8 and 9, so the fitting retention force and sealing performance are higher than in the conventional case of one piece. It is twice as large and will not come off easily even if subjected to vibration or shock, and there is no need to worry about air leakage.
なお、第１ダクト１の端部に山高さh1，h2の異
なる突起３，４を設けるものに代えて、第１ダク
トの端部を先細なテーパ状とし、このテーパ面に
山高さの等しい突起を設けることも考えられる。
ところが、第１ダクトの端部を先細状とすると、
この部分の内径が小さくなつて空気の通過面積が
小さくなり、空気抵抗が増大するという問題があ
る。また、第１ダクトの成形上、先細状に成形す
るのは型抜きが難しくなるとともに、寸法精度が
出にくく、しかも肉厚が大となつて空気抵抗をさ
らに増大させる。これに対し、本考案のように第
１ダクトの端部の直径を一定とし、山高さを変え
れば、上記の問題を解消できる。 Note that instead of providing the protrusions 3 and 4 with different heights h 1 and h 2 at the end of the first duct 1, the end of the first duct 1 is tapered, and the tapered surface is provided with projections 3 and 4 of different heights h 1 and h 2 . It is also conceivable to provide equal projections.
However, if the end of the first duct is tapered,
There is a problem in that as the inner diameter of this portion becomes smaller, the area through which air passes becomes smaller, and air resistance increases. Furthermore, when forming the first duct into a tapered shape, it becomes difficult to cut out the mold, it is difficult to obtain dimensional accuracy, and the wall thickness becomes large, further increasing air resistance. On the other hand, if the diameter of the end of the first duct is constant and the peak height is varied as in the present invention, the above problem can be solved.
さらに、第２ダクト５の先端に設けた第２テー
パ面１０は本考案において必須ではないが、第２
テーパ面１０を設けた方が第１ダクト１の嵌入は
よりスムーズとなるため、望ましい。 Further, although the second tapered surface 10 provided at the tip of the second duct 5 is not essential in the present invention,
Providing the tapered surface 10 is preferable because the first duct 1 can be fitted more smoothly.
以上の説明で明らかなように、本考案によれば
第１ダクトに開口端側の山高さが順次小さい２個
の環状突起を設け、第２ダクトに開口端側の内径
が漸次大きいテーパ面と２個の環状凹部とを設け
たので、接続状態において２個の突起と凹部との
嵌合により従来に比べて約２倍の嵌合保持力とシ
ール性を得ることができる。また、第１ダクトを
第２ダクトに嵌入したとき、開口端側の突起は開
口端側の凹部に嵌合せず、テーパ面によつてガイ
ドされて奥まで容易に嵌入できるため、１個の突
起と１個の凹部とを設けた従来の場合に比べて組
付作業性を悪化させない。さらに、第１ダクトの
端部を先細としないので、ダクトの外径をほぼ一
定に保持でき、空気の流れを阻害せず、かつ成形
も容易である。
As is clear from the above description, according to the present invention, the first duct is provided with two annular protrusions with successively smaller peak heights on the open end side, and the second duct is provided with a tapered surface with a gradually larger inner diameter on the open end side. Since two annular recesses are provided, in the connected state, the two protrusions fit into the recesses, and the fit retention force and sealing performance can be approximately twice as high as in the conventional case. Furthermore, when the first duct is inserted into the second duct, the protrusion on the open end side does not fit into the recess on the open end side, but is guided by the tapered surface and can be easily inserted all the way, so that the protrusion on the open end side does not fit into the recess on the open end side. The assembly work efficiency is not deteriorated as compared to the conventional case in which a single recess is provided. Furthermore, since the end of the first duct is not tapered, the outer diameter of the duct can be kept substantially constant, the air flow is not obstructed, and molding is easy.
第１図は本考案にかかるダクト接続構造を備え
たダクトの分離時における全体斜視図、第２図は
その一部拡大断面図、第３図は接続状態における
一部の拡大断面図である。
１……第１ダクト、５……第２ダクト、２，６
……端部、３，４……環状突起、７……テーパ
面、８，９……環状凹部。
FIG. 1 is an overall perspective view of a duct provided with a duct connection structure according to the present invention when separated, FIG. 2 is a partially enlarged sectional view thereof, and FIG. 3 is a partially enlarged sectional view in a connected state. 1...First duct, 5...Second duct, 2, 6
... end, 3, 4 ... annular projection, 7 ... tapered surface, 8, 9 ... annular recess.
Claims (1)
るための構造において、 第１ダクト１の一定の外径d0を有する端部外周
に開口端側の山高さh1，h2が順次小さい２個の環
状突起３，４を一定間隔ｌをあけて設け、第２ダ
クト５の端部内周に開口端側の内径が漸次大きい
テーパ面７を設けるとともに、該テーパ面７の内
面に２個の環状凹部８，９を上記環状突起３，４
の間隔と同等の間隔ｌをあけて設け、上記開口端
側の環状突起３の外径d1をテーパ面７の開口端側
の環状凹部９近傍の内径D4以下でかつ奥側の環
状凹部８近傍の内径D3より大きくし、第１ダク
ト１の端部を第２ダクト５の端部内に嵌入するこ
とにより、開口端側の環状突起３が奥側の環状凹
部８に、後方側の環状突起４が開口端側の環状凹
部９に同時に嵌合するように構成した冷暖房装置
のダクト接続構造。[Claims for Utility Model Registration] In a structure for fitting and connecting two air-conditioning ducts at their ends, the first duct 1 has a mountain height on the open end side on the outer periphery of the end having a constant outer diameter d0 . Two annular protrusions 3 and 4 with successively smaller heights h 1 and h 2 are provided at a constant interval 1, and a tapered surface 7 is provided on the inner periphery of the end of the second duct 5 with the inner diameter gradually increasing on the open end side, Two annular recesses 8 and 9 are formed on the inner surface of the tapered surface 7 to form the annular projections 3 and 4.
The outer diameter d 1 of the annular protrusion 3 on the open end side is equal to or smaller than the inner diameter D 4 near the annular recess 9 on the open end side of the tapered surface 7 and the annular recess on the back side. By making the inner diameter D3 larger than the inner diameter D 3 of the vicinity of 8 and fitting the end of the first duct 1 into the end of the second duct 5, the annular protrusion 3 on the open end side is inserted into the annular recess 8 on the back side. A duct connection structure for a heating and cooling device configured such that an annular projection 4 is fitted into an annular recess 9 on an open end side at the same time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4797384U JPS60159936U (en) | 1984-03-31 | 1984-03-31 | Duct connection structure for heating and cooling equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4797384U JPS60159936U (en) | 1984-03-31 | 1984-03-31 | Duct connection structure for heating and cooling equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60159936U JPS60159936U (en) | 1985-10-24 |
| JPH0424344Y2 true JPH0424344Y2 (en) | 1992-06-09 |
Family
ID=30563785
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4797384U Granted JPS60159936U (en) | 1984-03-31 | 1984-03-31 | Duct connection structure for heating and cooling equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60159936U (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2716794B2 (en) * | 1989-04-10 | 1998-02-18 | 住友重機械工業株式会社 | Method and apparatus for evaluating turn pattern for beam adjustment of cyclotron |
| JP2508589Y2 (en) * | 1989-07-31 | 1996-08-28 | スズキ株式会社 | Duct structure of vehicle air conditioner |
| JPH04333873A (en) * | 1991-05-10 | 1992-11-20 | Seiko Epson Corp | Production of developer support |
| JP2541199Y2 (en) * | 1991-11-29 | 1997-07-09 | 日本プラスト株式会社 | Air conditioning duct |
| JP3653328B2 (en) * | 1996-03-21 | 2005-05-25 | カルソニックカンセイ株式会社 | Tube connection structure |
| JP3534189B2 (en) * | 2001-08-24 | 2004-06-07 | 株式会社中川製作所 | Air conditioning duct connection device |
| JP5041707B2 (en) * | 2006-01-31 | 2012-10-03 | キョーラク株式会社 | Fitting structure of air conditioning duct for vehicles |
| JP5227614B2 (en) * | 2008-02-29 | 2013-07-03 | 本田技研工業株式会社 | Air conditioner for vehicles |
| KR100963915B1 (en) | 2008-04-03 | 2010-06-17 | 노성근 | A elbow duct producing method |
| JP2013083423A (en) * | 2012-02-27 | 2013-05-09 | Howa Kasei Kk | Connection structure of air blow-off device and duct |
| KR102005892B1 (en) * | 2017-12-21 | 2019-07-31 | 유진에스엠알시오토모티브테크노 주식회사 | air intake duct for automobiles with tightly coupled |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5872792A (en) * | 1981-10-28 | 1983-04-30 | 日本プラスト株式会社 | Connector of ventilating duct for air conditioning |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5660891U (en) * | 1979-10-17 | 1981-05-23 |
-
1984
- 1984-03-31 JP JP4797384U patent/JPS60159936U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5872792A (en) * | 1981-10-28 | 1983-04-30 | 日本プラスト株式会社 | Connector of ventilating duct for air conditioning |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60159936U (en) | 1985-10-24 |
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