JPS6368420A - Forming method for shutter valve - Google Patents

Forming method for shutter valve

Info

Publication number
JPS6368420A
JPS6368420A JP21128486A JP21128486A JPS6368420A JP S6368420 A JPS6368420 A JP S6368420A JP 21128486 A JP21128486 A JP 21128486A JP 21128486 A JP21128486 A JP 21128486A JP S6368420 A JPS6368420 A JP S6368420A
Authority
JP
Japan
Prior art keywords
mold
valve body
sealing material
elastic sealing
shutter valve
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.)
Granted
Application number
JP21128486A
Other languages
Japanese (ja)
Other versions
JPH0355327B2 (en
Inventor
Koji Sugiyama
康二 杉山
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.)
Nihon Plast Co Ltd
Original Assignee
Nihon Plast Co Ltd
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 Nihon Plast Co Ltd filed Critical Nihon Plast Co Ltd
Priority to JP21128486A priority Critical patent/JPS6368420A/en
Publication of JPS6368420A publication Critical patent/JPS6368420A/en
Publication of JPH0355327B2 publication Critical patent/JPH0355327B2/ja
Granted legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60HARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00Heating, cooling or ventilating [HVAC] devices
    • B60H1/00642Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
    • B60H1/00664Construction or arrangement of damper doors
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14778Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the article consisting of a material with particular properties, e.g. porous, brittle
    • B29C45/14795Porous or permeable material, e.g. foam

Abstract

PURPOSE:To ensure the easy forming of the body of a shutter valve for the ventilation duct of a vehicle without any damage to a seal material by inserting a resilient seal member in a mold having a circular arc ring groove at a position corresponding to the outer edge of the valve body for monolithic molding therewith. CONSTITUTION:A resilient seal material 19 such as soft foamed polyurethane is inserted in the recess 17 of a movable mold 13. Then, the mold 13 is closed with a fixed mold 12. Consequently, the resilient seal material 19 is held as crushed between the metal mold surface 17a of the movable mold 13 and the chucking part 16 of the fixed mold 12. Thereafter, melt resin is extruded, thereby forming the resilient seal material 19 and a shutter valve body 21 monolithically. In this case, the resilient seal material 19 is pressed into a ring- shaped groove 18 and a circular arc projection is formed, thereby making the seal material 19 monolithic with the valve body 21. Then, the molds 12 and 13 are opened and the shutter valve body 21 is released therefrom. According to the aforesaid constitution, the shutter valve body 21 can be easily formed without any damage to the seal thereof.

Description

【発明の詳細な説明】 〔発明の目的〕 (産業上の利用分野) 本発明は、例えば自動車のベンチレークなどの空調用の
ダクトを開閉するシャッターバルブの成形方法に関する
DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Field of Application) The present invention relates to a method for forming a shutter valve for opening and closing an air conditioning duct such as an automobile vent rake.

(従来の技術) 従来、シャッターバルブの形成にあたっては、例えば実
開昭54−27558@公報に示される方法が用いられ
ている。
(Prior Art) Conventionally, a method disclosed in Japanese Utility Model Application Laid-open No. 54-27558@ has been used to form a shutter valve.

この方法は、第7図に示すように、回動中心となる支軸
を受ける受部1を備えた合成樹脂製のバルブ本体2を射
出成形によって成形するとともに、例えばウレタン製の
弾性シール材3に接着剤を塗布あるいは両面テープをt
iした後、組立ラインにおいて、バルブ本体2と弾性シ
ール材3とを接着剤あるいは両面テープによって貼イ1
け、そのバルブ本体2の外縁部2aから弾性シール材3
のシール部分を突出させてシャッターバルブを形成する
ようになっている。
In this method, as shown in FIG. 7, a valve body 2 made of synthetic resin is molded by injection molding and is equipped with a receiving part 1 for receiving a support shaft serving as a center of rotation, and an elastic sealing material 3 made of, for example, urethane is Apply adhesive or double-sided tape to
After that, the valve body 2 and the elastic sealing material 3 are pasted together with adhesive or double-sided tape on the assembly line.
Then, the elastic sealing material 3 is inserted from the outer edge 2a of the valve body 2.
A shutter valve is formed by protruding the seal portion of the shutter.

(発明が解決しようとする問題点) しかし、上記のような従来のシャッターバルブの形成方
法では、弾性シール材3に接着剤を塗布あるいは両面テ
ープを貼着した後、その弾性シール材3をバルブ本体2
に接着するという作業が必要であり、手間ならびに時間
がかかる問題点があった。
(Problems to be Solved by the Invention) However, in the conventional shutter valve forming method as described above, after applying an adhesive or pasting double-sided tape to the elastic sealing material 3, the elastic sealing material 3 is attached to the valve. Main body 2
There was a problem in that it required work to adhere the material to the material, which was laborious and time-consuming.

そこで、手間ならびに時間がかからずに形成する方法と
して、弾性シール材を金型内にインサートしてその金型
のキャビティの外縁部にあたる弾性シール材の部分を金
型開放後に復元可能に押しつぶして挟み込み、この金型
のキャビティ内に溶融合成樹脂を射出してキャビティ内
に臨む弾性シール材とバルブ本体とを一体化することが
考えられる。しかし、バルブ成形後、バルブ本体の弾性
シール材が一体化された外縁部が角になるため、シャッ
ターバルブの使用に伴い、そのバルブ本体の外縁部との
境目の部分から弾性シール材が簡単に切れ易く、シール
機能を損い易い問題が考えられる。
Therefore, as a method of forming the material without requiring much time and effort, an elastic sealant is inserted into the mold, and the portion of the elastic sealant that corresponds to the outer edge of the mold cavity is crushed so that it can be restored after the mold is opened. It is conceivable to sandwich the valve body and inject molten synthetic resin into the cavity of the mold to integrate the elastic sealing material facing into the cavity with the valve body. However, after the valve is molded, the outer edge of the valve body where the elastic sealing material is integrated becomes a corner, so when the shutter valve is used, the elastic sealing material can easily be removed from the boundary with the outer edge of the valve body. There is a problem that it is easy to break and the sealing function is easily damaged.

本発明は上述のような問題点に鑑みなされたもので、手
間ならびに時間がかからずに形成でき、しかも、バルブ
本体の外縁部によって弾性シール材が切れるのを防止し
たシャッターバルブの成形方法を提供することを目的と
するものである。
The present invention has been made in view of the above-mentioned problems, and provides a method for molding a shutter valve that can be formed without much effort and time, and that prevents the elastic sealing material from being cut by the outer edge of the valve body. The purpose is to provide

〔発明の構成〕[Structure of the invention]

、 (問題点を解決するための手段) 本発明のシャッターバルブの成形方法は、弾性シール材
19を金型11内にインサートしてその金儀 型11のキャビティ15の外縁部にあたる弾性シール材
19の部分を金型開放後に復元可能に押しつぶして挟み
込み、この金型11のキャビティ15内に溶融合成樹脂
を射出してキャビティ15内に臨む弾性シール材19と
バルブ本体21とを一体化するとともに、上記バルブ本
体21の外縁部に対応する弾性シール材19がインサー
トされる金型面17aに設けた円弧状の凹溝1Bによっ
て、そのバルブ本体210弾性シール材19と一体化さ
れる外縁部を円弧状に成形するものである。
(Means for Solving the Problems) The shutter valve molding method of the present invention includes inserting an elastic sealing material 19 into a mold 11 and applying the elastic sealing material 19 to the outer edge of the cavity 15 of the mold 11. After the mold is opened, the parts are crushed and sandwiched so that they can be restored, and molten synthetic resin is injected into the cavity 15 of the mold 11 to integrate the elastic sealing material 19 facing into the cavity 15 and the valve body 21. The outer edge of the valve body 210 to be integrated with the elastic sealant 19 is circularly shaped by the arc-shaped groove 1B provided in the mold surface 17a into which the elastic sealant 19 corresponding to the outer edge of the valve body 21 is inserted. It is formed into an arc shape.

(作用) 本発明のシャッターバルブの成形方法は、弾性シール材
19を金型11内にインサートする際に、金型11のキ
ャビティ15の外縁部にあたるシール材19の部分を金
型開放後に復元可能に押しつぶして挟み込み、そして、
この金型11のキャビティ15内に溶融合成樹脂を射出
してキャビティ15内に臨むシール材19とバルブ本体
21とを一体化し、また、バルブ本体21の弾性シール
材19と一体化される外縁部を円弧状に成形するように
したものである。
(Function) In the shutter valve molding method of the present invention, when inserting the elastic sealing material 19 into the mold 11, the portion of the sealing material 19 corresponding to the outer edge of the cavity 15 of the mold 11 can be restored after the mold is opened. Squeeze and pinch, and
Molten synthetic resin is injected into the cavity 15 of this mold 11 to integrate the sealing material 19 facing into the cavity 15 and the valve body 21, and the outer edge portion of the valve body 21 is integrated with the elastic sealing material 19. is formed into an arc shape.

(実施例) 以下、本発明の一実施例の構成を図面を参照して説明す
る。
(Example) Hereinafter, the configuration of an example of the present invention will be described with reference to the drawings.

第1図において、11は金型で、固定型12とこの固定
型12に対し接離する可動型13とを対設している。そ
して、その固定型12には、溶融合成樹脂が射出される
スプルー14およびこのスプルー14に連通して可動型
13に接合した際に構成されるキャビティ15が設けら
れ、さらに、このキャビティ15の周囲に可動型13に
後述する弾性シール材19を押しつぶして挟み込む挟み
込み部1Gが設けられている。また、可動型13には、
固定型12のキャビティ15および挟み込み部16が型
閉時に嵌入する型凹部17が設けられているとともに、
この型凹部17内の金型面17aにキャビティ15の端
部位置に対応して円弧状の凹溝18が設けられている。
In FIG. 1, reference numeral 11 denotes a mold, in which a fixed mold 12 and a movable mold 13 that moves toward and away from the fixed mold 12 are disposed opposite to each other. The fixed mold 12 is provided with a sprue 14 through which the molten synthetic resin is injected, and a cavity 15 that communicates with this sprue 14 and is formed when joined to the movable mold 13. The movable mold 13 is provided with a pinching portion 1G that crushes and pinches an elastic sealing material 19, which will be described later. In addition, the movable mold 13 has
A mold recess 17 into which the cavity 15 of the fixed mold 12 and the sandwiching part 16 fit when the mold is closed is provided, and
An arcuate groove 18 is provided in the mold surface 17a within the mold recess 17 in correspondence with the end position of the cavity 15.

そして、この金型11の可動型13の型凹部17に、例
えば軟質発泡ウレタンシートやネオブレンスポンジラバ
ー等からなる弾性シール材19がインサート供給される
Then, an elastic sealing material 19 made of, for example, a soft urethane foam sheet or neoprene sponge rubber is inserted and supplied into the mold recess 17 of the movable mold 13 of the mold 11.

そうして、第2図に示すように、固定型12と可動型1
3とを型閉することにより、可動型13の型凹部17内
に固定型12のキャビティ15および挟み込み部16が
嵌入し、可動型13の金型面17aと固定型12の挟み
込み部16との間に、弾性シール材19のキャビティ1
5の外縁部にあたる部分が押しつぶされて挟み込まれる
Then, as shown in FIG. 2, the fixed mold 12 and the movable mold 1
3, the cavity 15 and the sandwiching part 16 of the fixed mold 12 fit into the mold recess 17 of the movable mold 13, and the mold surface 17a of the movable mold 13 and the sandwiching part 16 of the fixed mold 12 are connected. In between, the cavity 1 of the elastic sealing material 19
The portion corresponding to the outer edge of 5 is crushed and sandwiched.

次に、第3図に示すように、スプルー14から熱可塑性
合成樹脂の溶融合成樹脂20を射出すると、この溶融合
成樹脂20は、弾性シール材19をそのlJ’1出圧力
と熱により射出側とは反対の可動を13の金型面17a
に押付けてキャビティ15内に充填される。
Next, as shown in FIG. 3, when the molten synthetic resin 20 of thermoplastic synthetic resin is injected from the sprue 14, the molten synthetic resin 20 causes the elastic sealing material 19 to move toward the injection side by its lJ'1 ejection pressure and heat. 13 mold surface 17a
The inside of the cavity 15 is filled by pressing it.

この際、金型内17aの凹溝18に沿って弾性シール材
19および溶融合成樹脂20が圧入される。そして、適
度な冷却期間を経て成形が完了し、キャビティ15内に
臨む弾性シール材19の部分とバルブ本体21とが一体
化される。
At this time, the elastic sealing material 19 and the molten synthetic resin 20 are press-fitted along the groove 18 in the mold 17a. After a suitable cooling period, the molding is completed, and the portion of the elastic sealing material 19 facing into the cavity 15 and the valve body 21 are integrated.

そして、固定型12と可動型13とが型開されることに
より、第4図に示すように、固定型12の挟み込み部1
6と可動型13との間に挟み込まれていた弾性シール材
19の部分は、押しつぶされる前の状態に復元し、また
、バルブ本体21と一体化された弾性シール材19の部
分は、射出成形時において溶融合成樹脂20が弾性シー
ル材19の内部に浸透したため、押しつぶされたままの
状態にある。また、バルブ本体21の弾性シール材19
が一体化された外縁部には、金型面17aの凹溝18に
よって円弧状の突部22が成形される。なお、バルブ本
体21と一体化された弾性シール材19の部分は押しつ
ぶされたままの状態にあるが、バルブ本体21の外縁部
の弾性シール材19の部分がシール可能であるので、シ
ャッターバルブとしてのシール機能には差支えない。
Then, by opening the fixed mold 12 and the movable mold 13, as shown in FIG.
The part of the elastic sealing material 19 that was sandwiched between the valve body 21 and the movable mold 13 is restored to the state before being crushed, and the part of the elastic sealing material 19 that is integrated with the valve body 21 is injection molded. At the time, the molten synthetic resin 20 penetrated into the inside of the elastic sealing material 19, so that it remains in a crushed state. In addition, the elastic sealing material 19 of the valve body 21
An arcuate protrusion 22 is formed by the groove 18 of the mold surface 17a on the outer edge where the mold surface 17a is integrated. Although the part of the elastic sealing material 19 that is integrated with the valve body 21 remains crushed, the part of the elastic sealing material 19 on the outer edge of the valve body 21 can be sealed, so it can be used as a shutter valve. There is no problem with the seal function.

そして、バルブ本体21のスプル一部分を切断して、シ
ャッターバルブ23が成形される。
Then, a portion of the sprue of the valve body 21 is cut to form the shutter valve 23.

このようにして成形されたシャッターバルブ23は、第
5図および第6図に示すように、バルブ本体21の左右
両端に設けられた支f624を介してベンチレータ25
の矩形状のダクト26内に回動可能に配置され、そして
、図示しない開開機構によってそのダクト26を[J]
するようになっており、このダクト26の閉塞時に、バ
ルブ本体21の外縁部の弾性シール材19がダクト26
の内面に圧接してダクト26を閉塞するようになってい
る。
As shown in FIGS. 5 and 6, the shutter valve 23 molded in this way is connected to the ventilator 25 via supports f624 provided at both left and right ends of the valve body 21.
is rotatably arranged in a rectangular duct 26, and the duct 26 is opened by an opening/opening mechanism (not shown)
When the duct 26 is closed, the elastic sealing material 19 on the outer edge of the valve body 21 closes the duct 26.
The duct 26 is closed by pressing against the inner surface of the duct 26.

この際、バルブ本体21の外縁部が円弧状の突部22に
なっているため、そのバルブ本体21の外縁部との境目
の部分で弾性シール材19が切断されることがない。
At this time, since the outer edge of the valve body 21 is an arc-shaped protrusion 22, the elastic sealing material 19 is not cut at the boundary with the outer edge of the valve body 21.

なお、上記弾性シール材19は、バルブ本体21の一側
面全体と一体化させる構成でも、バルブ本体21の一側
面の中央部分に対応して弾性シール材19に開口部を設
けて、バルブ本体21の周縁部のみと一体化させるよう
にしてもよい。
Note that even in a configuration in which the elastic sealing material 19 is integrated with the entire one side surface of the valve body 21, an opening is provided in the elastic sealing material 19 corresponding to the central portion of one side surface of the valve body 21, so that the elastic sealing material 19 can be integrated with the entire one side surface of the valve body 21. It may be made to be integrated only with the peripheral part of.

また、このシャッターバルブ23は、ベンチレータ25
に限られず、車両の内外の空気の交換を行なうダクトト
ラクターなどのバルブとしても利用できる。
Further, this shutter valve 23 is connected to a ventilator 25.
It can also be used as a valve for duct tractors, etc. that exchange air inside and outside a vehicle.

〔発明の効果〕 本発明によれば、弾性シール材を金型内にインサートし
た際に、その金型のキャビティの外縁部にあたる骨性シ
ール材の部分を金型開放後に復元可能に押しつぶして挟
み込み、金型のキャビティ内に溶融合成樹脂を射出して
キャビティ内に臨む弾性シール材とバルブ本体とを一体
化することにより、従来の接着作業を省略して、手間な
らびに時間がかからずに成形することができ、しかも、
バルブ本体の弾性シール材と一体化される外縁部を円弧
状に形成することにより、バルブ成形後、バルブ本体の
外縁部によって弾性シール材が簡単に切断されることが
ない。
[Effects of the Invention] According to the present invention, when an elastic sealing material is inserted into a mold, the portion of the bony sealing material corresponding to the outer edge of the cavity of the mold is crushed and sandwiched so that it can be restored after the mold is opened. By injecting molten synthetic resin into the mold cavity and integrating the valve body with the elastic sealing material facing into the cavity, conventional gluing work can be omitted and molding can be performed without much effort or time. can be done, and
By forming the outer edge portion integrated with the elastic sealing material of the valve body into an arc shape, the elastic sealing material is not easily cut by the outer edge portion of the valve body after the valve is molded.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本発明のシャッターバルブの成形方法の一実施
例を示す金型の断面図、第2図はその型閉状態の断面図
、第3図はその射出状態の断面図、14図はその成形後
のシャッターバルブの斜視図、第5図および第6図はそ
れぞれ使用状態の斜視図、第7図は従来のシャッターバ
ルブの斜視図である。 11・・金型、15・・キャビティ、17a ・・金型
内、18・・凹溝、19・・弾性シール材、21・・バ
ルブ本体、23・・シャッターバルブ、26・・ダクト
。 f!全竺 序l胆 F$4m 薯3旦   尊皇」 と と
Fig. 1 is a cross-sectional view of a mold showing an embodiment of the shutter valve molding method of the present invention, Fig. 2 is a cross-sectional view of the mold in the closed state, Fig. 3 is a cross-sectional view of the mold in the injection state, and Fig. 14 is a cross-sectional view of the mold in the closed state. A perspective view of the shutter valve after molding, FIGS. 5 and 6 are perspective views of the state in use, and FIG. 7 is a perspective view of a conventional shutter valve. 11... Mold, 15... Cavity, 17a... Inside the mold, 18... Concave groove, 19... Elastic sealing material, 21... Valve body, 23... Shutter valve, 26... Duct. f! Entire title: F$4m 薯3dan Venerable Emperor'

Claims (1)

【特許請求の範囲】[Claims] (1)車両の空調用のダクトを開閉するシャッターバル
ブにおいて、 弾性シール材を金型内にインサートしてその金型のキャ
ビティの外縁部にあたる弾性シール材の部分を金型開放
後に復元可能に押しつぶして挟み込み、この金型のキャ
ビティ内に溶融合成樹脂を射出してキャビティ内に臨む
弾性シール材とバルブ本体とを一体化するとともに、上
記バルブ本体の外縁部に対応する弾性シール材がインサ
ートされる金型面に設けた円弧状の凹溝によって、その
バルブ本体の弾性シール材と一体化される外縁部を円弧
状に成形することを特徴とするシャッターバルブの成形
方法。
(1) In a shutter valve that opens and closes a vehicle's air conditioning duct, an elastic sealing material is inserted into a mold, and the portion of the elastic sealing material that corresponds to the outer edge of the mold cavity is crushed so that it can be restored after the mold is opened. molten synthetic resin is injected into the cavity of this mold to integrate the elastic sealing material facing into the cavity with the valve body, and a corresponding elastic sealing material is inserted into the outer edge of the valve body. A method for molding a shutter valve, which comprises molding the outer edge portion, which is integrated with the elastic sealing material of the valve body, into an arcuate shape by means of an arcuate groove provided on the mold surface.
JP21128486A 1986-09-08 1986-09-08 Forming method for shutter valve Granted JPS6368420A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21128486A JPS6368420A (en) 1986-09-08 1986-09-08 Forming method for shutter valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21128486A JPS6368420A (en) 1986-09-08 1986-09-08 Forming method for shutter valve

Publications (2)

Publication Number Publication Date
JPS6368420A true JPS6368420A (en) 1988-03-28
JPH0355327B2 JPH0355327B2 (en) 1991-08-23

Family

ID=16603383

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21128486A Granted JPS6368420A (en) 1986-09-08 1986-09-08 Forming method for shutter valve

Country Status (1)

Country Link
JP (1) JPS6368420A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0424806U (en) * 1990-06-26 1992-02-27
EP0743155A2 (en) * 1995-05-16 1996-11-20 Nippondenso Co., Ltd. Resin-molded product and method of manufacturing the same
CN104596056A (en) * 2013-10-30 2015-05-06 广东美的制冷设备有限公司 Sealing device and air conditioner applying same

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0424806U (en) * 1990-06-26 1992-02-27
EP0743155A2 (en) * 1995-05-16 1996-11-20 Nippondenso Co., Ltd. Resin-molded product and method of manufacturing the same
EP0743155A3 (en) * 1995-05-16 1997-06-18 Nippon Denso Co Resin-molded product and method of manufacturing the same
CN104596056A (en) * 2013-10-30 2015-05-06 广东美的制冷设备有限公司 Sealing device and air conditioner applying same

Also Published As

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JPH0355327B2 (en) 1991-08-23

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