JPS6216587Y2 - - Google Patents
Info
- Publication number
- JPS6216587Y2 JPS6216587Y2 JP2702881U JP2702881U JPS6216587Y2 JP S6216587 Y2 JPS6216587 Y2 JP S6216587Y2 JP 2702881 U JP2702881 U JP 2702881U JP 2702881 U JP2702881 U JP 2702881U JP S6216587 Y2 JPS6216587 Y2 JP S6216587Y2
- Authority
- JP
- Japan
- Prior art keywords
- duct
- enlarged diameter
- diameter
- defroster
- diameter part
- 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
- 238000000034 method Methods 0.000 claims description 8
- 238000011144 upstream manufacturing Methods 0.000 claims description 4
- 238000005520 cutting process Methods 0.000 description 7
- 238000000465 moulding Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000010257 thawing Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000000071 blow moulding Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Landscapes
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
- Duct Arrangements (AREA)
- Branch Pipes, Bends, And The Like (AREA)
Description
【考案の詳細な説明】
本考案は自動車用空調装置のダクト類結合部構
造に関するものである。[Detailed Description of the Invention] The present invention relates to a structure for connecting ducts in an automobile air conditioner.
例えば第１図に示すようにブロア及びヒータコ
アを内蔵したヒータユニツト１及びデフロスタダ
クト２、デフロスタノズル３等のデフロスタ装置
等よりなる自動車用空調装置において、デフロス
タダクト２とデフロスタノズル３の結合は一般に
両者の嵌め合せにより行なわれることは当然であ
る（実開昭47−30353号公報参照）。 For example, as shown in FIG. 1, in an automobile air conditioner comprising a heater unit 1 with a built-in blower and heater core, a defroster device such as a defroster duct 2, a defroster nozzle 3, etc., the defroster duct 2 and the defroster nozzle 3 are generally connected to each other. Naturally, this is done by fitting (see Japanese Utility Model Application Publication No. 47-30353).
ところが、第２図イに示すようにダクト２及び
ノズル３の結合部の端部を成形後の別工程で丸の
こ等の切断工具でカツトしたものの場合は通風抵
抗の面での問題はないが、上記端部カツト工程を
節約するためにダクト２及びノズル３の成形工程
の待ち時間（硬化するまでの待ち時間）で端面を
ナイフでカツトする方策を採用すると、成形時ナ
イフカツト用の案内溝部を内方に突出させて形成
しておかねばならず、ナイフカツト後の製品には
第２図ロのように案内溝部を構成していた一方の
壁が内方に突出したフランジ形状部２ａ，３ａと
なつて残り、嵌め合い時内側となる方例えばダク
ト２のフランジ形状部２ａが通路の径をa′の如く
せばめ、空気の流れを著しく悪くしデフロスト効
果にも悪影響を与える。 However, if the end of the joint between the duct 2 and nozzle 3 is cut with a cutting tool such as a circular saw in a separate process after molding, as shown in Figure 2A, there is no problem in terms of ventilation resistance. However, if a measure is adopted in which the end faces are cut with a knife during the waiting time of the molding process (waiting time until hardening) of the duct 2 and nozzle 3 in order to save the above-mentioned end cutting process, the guide groove for knife cutting during molding is must be formed so as to protrude inwardly, and the product after knife cutting has flange-shaped portions 2a, 3a in which one wall that constitutes the guide groove portion protrudes inwardly, as shown in Fig. 2 (b). For example, the flange-shaped portion 2a of the duct 2, which remains on the inside when fitted, narrows the diameter of the passage as shown by a', significantly impeding air flow and adversely affecting the defrosting effect.
本考案はダクト成形工程の待ち時間で端面をナ
イフカツトする方式のものにおける上記のような
問題点を解消することを目的とするもので、以下
第３図乃至第５図の実施例につき説明する。 The purpose of the present invention is to solve the above-mentioned problems of the method in which the end face is cut with a knife during the waiting time of the duct forming process, and the embodiment shown in FIGS. 3 to 5 will be described below.
本考案では上流側即ち例えばデフロスタダクト
２の形成時、該デフロスタダクト２のデフロスタ
ノズル３に嵌合される側の端部近くに、第４図に
示すように該デフロスタダクト２の径ａをやや拡
開させ拡径部２ｂを形成し、該拡径部２ｂの途中
に上流側から下流側に向けて徐々に径をせばめる
ような円錐面状の傾斜面２ｃを形成し、ナイフカ
ツト用の案内溝部２′によりナイフカツト後該ダ
クト２の端部に形成されるフランジ形状部２ａの
先端部及び傾斜面２ｃの内方突出端２c′部の径が
前記ダクト２の径ａとほぼ同じか或はやや大とな
るよう構成したものである。 In the present invention, when forming the defroster duct 2, for example, the diameter a of the defroster duct 2 is slightly adjusted near the end of the defroster duct 2 on the side where the defroster nozzle 3 is fitted, as shown in FIG. A conical inclined surface 2c whose diameter gradually narrows from the upstream side to the downstream side is formed in the middle of the enlarged diameter section 2b to form a guide for knife cutting. The diameter of the tip of the flange-shaped portion 2a formed at the end of the duct 2 after knife cutting by the groove 2' and the inwardly protruding end 2c' of the inclined surface 2c is approximately the same as the diameter a of the duct 2, or It is designed to be somewhat large.
更に詳しく説明すると、ダクト２はブロー成形
等により鎖線示部分を含めた形状に一体成形さ
れ、該成形工程の待ち時間でナイフカツト用案内
溝部２′よりナイフカツトし鎖線部分を切り落す
が、そのナイフカツト部から所定範囲間即ちノズ
ル３への嵌合部分を拡径部２ｂに形成することに
より、その先端のナイフカツト用案内溝部２′の
一面により形成されるフランジ形状部２ａの内方
突出高さを上記拡径部２ｂの拡径範囲内におさ
め、該フランジ形状部２ａ先端がダクト２の径ａ
より小となるようなことがないようにしたもので
ある。 To explain in more detail, the duct 2 is integrally molded by blow molding or the like into a shape including the part indicated by the chain line, and during the waiting time of the molding process, the part shown by the chain line is cut off with a knife from the knife cut guide groove 2'. By forming the enlarged-diameter portion 2b within a predetermined range, that is, the fitting portion to the nozzle 3, the inward protrusion height of the flange-shaped portion 2a formed by one surface of the knife cutting guide groove portion 2' at the tip thereof can be adjusted to the above-mentioned height. The flange-shaped portion 2a is placed within the expanded diameter range of the expanded diameter portion 2b, and the tip of the flange-shaped portion 2a is aligned with the diameter a of the duct 2.
This is to prevent it from becoming smaller.
更に拡径部２ｂの途中には円錐面形状の傾斜面
２ｃが形成され、拡径部２ｂ内における空気の流
れが乱されることなく矢印の如くスムーズに流れ
得るようにしたものである。尚該傾斜面２ｃの内
方突出端２c′も上記拡径部２ｂの拡径範囲内に止
めダクト２の径ａより小となることのないよう構
成されていることは勿論である。 Further, a conical inclined surface 2c is formed in the middle of the enlarged diameter part 2b, so that the air can flow smoothly in the enlarged diameter part 2b as shown by the arrow without being disturbed. It goes without saying that the inwardly protruding end 2c' of the inclined surface 2c is also constructed so that it does not become smaller than the diameter a of the stop duct 2 within the enlarged diameter range of the enlarged diameter portion 2b.
更に又本考案では上記デフロスタダクト２の嵌
合部分の構成に加え、該ダクト２が嵌合するデフ
ロスタノズル３の嵌合部分も、第５図に示すよう
に上記ダクト２の拡径部２ｂ外周面に適合するよ
うノズル３の径ａを拡開させた拡径部３ｂに形成
すると共に、該拡径部３ｂの途中に第３図に示す
ように前記デフロスタダクト２の拡径部２ｂに設
けた傾斜面２ｃ部外周面に嵌入係合する内方突起
３ｃを複数個所（２〜３個所程度）形成し、該デ
フロスタダクト２をデフロスタノズル３に挿し込
むとダクト２の拡径部２ｂがノズル３の拡径部３
ｂの拡径範囲内に嵌合すると共に内方突起３ｃが
傾斜面２ｃ部に係合してロツクするよう構成され
ている。又ノズル３の拡径部３ｂの基部に形成さ
れる段部３ｄはダクト２挿入時ダクト２先端のフ
ランジ形状部２ａが当つてダクト２の挿入深さを
規制するストツパとしての機能を有している。 Furthermore, in the present invention, in addition to the configuration of the fitting portion of the defroster duct 2, the fitting portion of the defroster nozzle 3 into which the duct 2 fits is also formed on the outer periphery of the enlarged diameter portion 2b of the duct 2, as shown in FIG. The nozzle 3 is formed in an enlarged diameter part 3b with the diameter a enlarged to fit the surface, and is provided in the enlarged diameter part 2b of the defroster duct 2 in the middle of the enlarged diameter part 3b as shown in FIG. A plurality of inward projections 3c (approximately 2 to 3 locations) are formed to fit and engage with the outer peripheral surface of the inclined surface 2c, and when the defroster duct 2 is inserted into the defroster nozzle 3, the enlarged diameter portion 2b of the duct 2 is inserted into the nozzle. Expanded diameter part 3 of 3
The inner protrusion 3c is configured to fit within the enlarged diameter range of b, and to engage and lock the inner protrusion 3c with the inclined surface 2c. Furthermore, the stepped portion 3d formed at the base of the enlarged diameter portion 3b of the nozzle 3 has a function as a stopper that the flange-shaped portion 2a at the tip of the duct 2 comes into contact with when the duct 2 is inserted, thereby regulating the insertion depth of the duct 2. There is.
更にダクト２の拡径部２ｂの傾斜面２ｃ先端部
からフランジ形状部２ａに至る面２ｄを図示のよ
うに幾分内方につぼまつた円錐形状面２ｄとして
おけば、ダクト２のノズル３への挿入がスムーズ
に行なわれ嵌合作業が非常に容易となる利点をも
たらし得る。 Furthermore, if the surface 2d extending from the tip of the inclined surface 2c of the enlarged diameter portion 2b of the duct 2 to the flange-shaped portion 2a is formed into a conical surface 2d that convexes somewhat inward as shown in the figure, the nozzle 3 of the duct 2 This has the advantage that the insertion is performed smoothly and the fitting operation is extremely easy.
以上のように本考案によれば極めて簡単なる構
成において、ダクト端面ナイフカツト部の内方か
えり部が流通空気の流れを阻害することがなく的
確なるデフロスト効果をもたらし得ると共に、ダ
クトの嵌め合い結合作業の著しい簡易化をはかる
ことができるもので、実用上多大の効果をもたら
し得るものである。 As described above, according to the present invention, with an extremely simple configuration, the inward burr of the knife-cut portion on the end face of the duct can provide an accurate defrosting effect without obstructing the flow of circulating air, and the fitting and connecting work of the duct can be achieved. It is possible to achieve a remarkable simplification of the process, and it can bring about a great practical effect.
尚上記実施例ではデフロスタダクトとデフロス
タノズルとの嵌合結合部に本考案を適用した例を
示しているが、その他デフロスタダクトとサイド
デフロスタダクトとの嵌合結合部等任意のダクト
類の嵌合結合部に本考案を適用できることは言う
までもない。 Although the above embodiment shows an example in which the present invention is applied to the fitting joint between the defroster duct and the defroster nozzle, it can also be applied to the fitting joint of any other duct such as the fitting joint between the defroster duct and the side defroster duct. It goes without saying that the present invention can be applied to joints.
第１図は本考案を適用すべき自動車用空調装置
の一例を示す正面図、第２図イ，ロはそれぞれ従
来のダクト嵌合部の構造を示す一半断面図、第３
図は第１図Ａ−Ａ部の断面図で本考案の実施例を
示している。第４図及び第５図は第３図のデフロ
スタダクト及びデフロスタノズルの嵌合部分の成
形時の状態をそれぞれ説明する一半断面図であ
る。
１……ヒータユニツト、２……デフロスタダク
ト、３……デフロスタノズル、２′，３′……ナイ
フカツト用案内溝部、２ａ，３ａ……フランジ形
状部、２ｂ，３ｂ……拡径部、２ｃ……傾斜面、
３ｃ……内方突起。
Fig. 1 is a front view showing an example of an automobile air conditioner to which the present invention is applied;
The figure is a sectional view taken along the line A-A in FIG. 1 and shows an embodiment of the present invention. 4 and 5 are half sectional views respectively illustrating the state of the fitting portion of the defroster duct and defroster nozzle of FIG. 3 during molding. DESCRIPTION OF SYMBOLS 1... Heater unit, 2... Defroster duct, 3... Defroster nozzle, 2', 3'... Guide groove for knife cut, 2a, 3a... Flange shaped part, 2b, 3b... Expanded diameter part, 2c... ...slanted surface,
3c...Internal process.
Claims (1)
案内溝部を設けたダクト類において、下流側ダ
クト内に嵌合される上流側ダクトの該嵌合部分
を、該ダクトの一般部分の径より大なる径を有
する拡径部に形成して前記ナイフカツト用案内
溝部によりダクト端部に形成されるフランジ形
状部の内方突出量が該拡径部の拡径範囲内とな
るよう構成すると共に、該拡径部の途中に先端
方向に向つてつぼまる円錐面形状の傾斜面を形
成したことを特徴とする自動車用空調装置のダ
クト類結合部構造。 (2) 下流側ダクトの上流側ダクト拡径部が嵌め込
まれる部分は、一般部の径より大なる径を有す
る拡径部に形成されると共に、該拡径部には上
流側ダクト拡径部に形成された傾斜面部外周面
に係合する内方突起が設けられていることを特
徴とする実用新案登録請求の範囲第１項記載の
自動車用空調装置のダクト類結合部構造。[Claims for Utility Model Registration] (1) In ducts that are provided with a guide groove whose end face can be cut with a knife in the duct forming process, the fitting portion of the upstream duct that is fitted into the downstream duct is The inward protrusion amount of the flange-shaped part formed at the end of the duct by the knife cut guide groove formed in the enlarged diameter part having a diameter larger than the diameter of the general part is within the enlarged diameter range of the enlarged diameter part. What is claimed is: 1. A structure for connecting ducts in an air conditioner for an automobile, characterized in that a conical inclined surface converging toward a distal end is formed in the middle of the enlarged diameter portion. (2) The part of the downstream duct into which the upstream duct enlarged diameter part is fitted is formed into an enlarged diameter part having a diameter larger than the diameter of the general part, and the upstream duct enlarged diameter part is fitted into the enlarged diameter part. A structure for connecting ducts in an air conditioner for an automobile according to claim 1, further comprising an inward protrusion that engages with an outer circumferential surface of an inclined surface portion formed on the duct.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2702881U JPS6216587Y2 (en) | 1981-02-27 | 1981-02-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2702881U JPS6216587Y2 (en) | 1981-02-27 | 1981-02-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57141294U JPS57141294U (en) | 1982-09-04 |
| JPS6216587Y2 true JPS6216587Y2 (en) | 1987-04-27 |
Family
ID=29824756
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2702881U Expired JPS6216587Y2 (en) | 1981-02-27 | 1981-02-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6216587Y2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4683617A (en) * | 1986-08-26 | 1987-08-04 | Viskase Corporation | Disposable tension sleeve for a stuffing machine |
| 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 |
| JP2002195634A (en) * | 2000-12-27 | 2002-07-10 | Ricoh Elemex Corp | Ventilation device and air cleaner employing the same |
-
1981
- 1981-02-27 JP JP2702881U patent/JPS6216587Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57141294U (en) | 1982-09-04 |
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