JPH0615017Y2 - Insert molding - Google Patents
Insert moldingInfo
- Publication number
- JPH0615017Y2 JPH0615017Y2 JP4789789U JP4789789U JPH0615017Y2 JP H0615017 Y2 JPH0615017 Y2 JP H0615017Y2 JP 4789789 U JP4789789 U JP 4789789U JP 4789789 U JP4789789 U JP 4789789U JP H0615017 Y2 JPH0615017 Y2 JP H0615017Y2
- Authority
- JP
- Japan
- Prior art keywords
- molded body
- duct
- parison
- insert
- box
- 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
Landscapes
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
Description
【考案の詳細な説明】 （産業上の利用分野） 本考案はインサート成形によって形成されたインサート
成形体に関し、特には第１の成形体が第２の成形体の内
部まで入り込んだ構造を有するインサート成形体に関す
るものである。DETAILED DESCRIPTION OF THE INVENTION (Industrial field of use) The present invention relates to an insert molded body formed by insert molding, and particularly, an insert having a structure in which a first molded body is inserted into a second molded body. The present invention relates to a molded product.
（従来の技術） 例えば、エンジンの気化系統へ空気を送るダクトの中途
にボックス状のものを設けて、空気の流れる音を小さく
することが行なわれている。このダクトと箱とは、ダク
トをボックス内に入り込ませるか或いはボックスの外壁
にダクトの端部を接続するような方法で取付けられてい
た。(Prior Art) For example, a box-like thing is provided in the middle of a duct for sending air to a vaporization system of an engine to reduce the sound of air flow. The duct and the box were mounted in such a way that the duct could be inserted into the box or the end of the duct could be connected to the outer wall of the box.
（技術的課題） そのため従来の構造では、ダクトと、これを取付けるた
めに２分割されたボックスの３部分が必要であり、これ
らを各部分の位置を合わせながら数本のボルトを用いて
組立てなければならず、構造の割に部品点数が多く、組
立ての手間も面倒なものであった。(Technical problem) Therefore, in the conventional structure, the duct and the three parts of the box divided into two are required to mount the duct, and these parts must be assembled using several bolts while aligning the positions of the parts. However, the number of parts was large for the structure, and the assembly was troublesome.
本考案の目的は前記のような問題を解決し、部品点数が
少なく製造が容易で、製造工程としては１回のインサー
ト成形だけで組立てられ、その成形の際にパリソンをダ
クト即ち第１の部材に付着させない付着防止手段を具え
たインサート成形体を提供することにある。The object of the present invention is to solve the above-mentioned problems, the number of parts is small and the manufacturing is easy, and the assembly process is carried out by only one insert molding. During the molding, the parison is ducted, that is, the first member. An object of the present invention is to provide an insert molded body provided with an adhesion preventing means that does not adhere to the insert molded body.
（技術的手段） 前記目的は、第１の成形体が第２の成形体に入り込んだ
部分を有し、該入り込み部分の両側又は片側で第２の成
形体に一体化された構造を具えたインサート成形体であ
って、第２の成形体の成形の際にそのパリソンが接触す
るか接触する虞れのある前記入り込み部分に、パリソン
と材質的に付着し難い性質を有するか、あるいは粉体の
ようにパリソンと接触しても剥落して付着を防ぐ形態を
有する付着防止手段が設けられていることによって達成
される。(Technical Means) The above object has a structure in which the first molded body has a portion in which the second molded body is inserted and is integrated with the second molded body on both sides or one side of the inserted portion. An insert molded body, which has a property that it is difficult to materially adhere to the parison at the intruding portion where the parison comes into contact or may possibly come into contact during molding of the second molded body, or powder. This is achieved by the provision of the adhesion preventing means having a form that prevents the adhesion even if it comes into contact with the parison as described above.
（実施例） 図面はエンジンに送られる空気の流れる音を小さくする
レゾネータに関するもので、これは前述のように空気を
送る略Ｕ字型のダクト１と、該ダクト１が内部へ入り込
んで一体化されるボックス２とから成り、ダクト１が第
１の成形体、ボックス２が第２の成形体に相当する。ダ
クト１の曲管部３は第２の成形体ボックス２内に入り込
む部分になり、この入り込み曲管部３に形成された切除
部分４でボックス内部と通じている。ダクト１の両端は
接続口５、６になっており、曲管部３と接続口５、６の
間でボックス２に入り込まない部分はウエブ７によって
一体化されているので、切除部分４を設けてもダクト１
の全体形状には変形が生じない。入り込み部分３の両側
のダクトには、第２の成形体２との一体化をより確実に
する凹凸８、９が設けられており、この間の曲管部３の
全面が付着防止手段であるシート10によって覆われてい
る。(Embodiment) The drawings relate to a resonator for reducing the noise of the air sent to the engine. As described above, this is a substantially U-shaped duct 1 for sending air, and the duct 1 enters the inside and is integrated. The box 1 corresponds to the first molded body, and the box 2 corresponds to the second molded body. The curved pipe portion 3 of the duct 1 is a portion that enters into the second molded body box 2, and a cutout portion 4 formed in the inward curved pipe portion 3 communicates with the inside of the box. Since both ends of the duct 1 are connection ports 5 and 6, and the portion that does not enter the box 2 between the curved pipe portion 3 and the connection ports 5 and 6 is integrated by the web 7, the cutout portion 4 is provided. Even duct 1
No deformation occurs in the overall shape of. The ducts on both sides of the indented portion 3 are provided with irregularities 8 and 9 for ensuring the integration with the second molded body 2, and the entire surface of the curved tube portion 3 between them is a sheet as an adhesion preventing means. Covered by 10.
シート10は、供給されるパリソン（の特に先端及び内
側）と接触しても付着が生じないようにダクト１の外側
を覆う。例示のものは曲管部３の外側、左右両側及び内
側の一部を覆えるような大きさを有し、ダクト１の曲が
りに対応するための切欠11が左右に設けられている。12
はブローエア通過孔を示す。このシート10は第２の成形
体であるボックス２と付着し難い性質の樹脂発泡体より
成る。このような組合わせは、ボックス２がポリプロピ
レン樹脂の場合ポリウレタンフォームやポリエチレンフ
ォームなどがあり、ダクト１には両面粘着剤などにより
固定される。シート10以外の付着防止手段としては、シ
ート状のものを用いる場合他にゴムがあり、シート状以
外ではテープ類で、紙テープ、クラフトテープ、ガムテ
ープ等を巻付ける方法またパリソンとの接触で剥落し付
着を防ぐものとしては無機質若しくは有機質の粉体を塗
着させておく方法などが挙げられる。各図中、13、14は
ダクト１との一体化部分であるスリーブ部分、またＤは
ブロー成形用ダイ、Ｍはマンドレル、Ｐはパイソンでそ
の両側に割型のブローモールドが配置されている。Ｔは
ブローチューブを示す。The sheet 10 covers the outside of the duct 1 so that it does not adhere to it when it comes into contact with (especially the tip and inside of) the supplied parison. The illustrated one has a size capable of covering the outer side, the left and right sides, and a part of the inner side of the curved pipe portion 3, and cutouts 11 are provided on the left and right sides to accommodate bending of the duct 1. 12
Indicates a blow air passage hole. The sheet 10 is made of a resin foam which is hard to adhere to the box 2 which is the second molded body. Such a combination includes polyurethane foam and polyethylene foam when the box 2 is made of polypropylene resin, and is fixed to the duct 1 with a double-sided adhesive or the like. As the adhesion preventing means other than the sheet 10, there is rubber in addition to the case of using a sheet-like one, and tapes other than the sheet-like one are a method of winding a paper tape, craft tape, gum tape, etc. As a method for preventing the adhesion, there is a method of applying an inorganic or organic powder. In each drawing, 13 and 14 are sleeve portions which are integrated with the duct 1, D is a blow molding die, M is a mandrel, and P is a python, and split blow molds are arranged on both sides thereof. T indicates a blow tube.
次に成形工程について説明すると、第３図（ａ）は第１
の成形体であるダクト１が成形された状態を示す。この
状態のダクト１は連結しているが、曲管部３の近くの一
部４′はすぐに切除される。同図（ｂ）は切除部分４を
除く曲管部３の前後に付着防止手段であるシート10を取
付けた状態であり、この状態で第２の成形体であるボッ
クス２のブローモールドにセットされる。Next, the molding process will be described. FIG.
1 shows a state in which the duct 1 which is the molded body of 1 is molded. The duct 1 in this state is connected, but a part 4'in the vicinity of the curved pipe portion 3 is immediately cut off. FIG. 2B shows a state in which sheets 10 as adhesion preventing means are attached to the front and rear of the curved tube portion 3 excluding the cutout portion 4. In this state, the sheet 10 is set in the blow mold of the box 2 as the second molded body. It
第３図（ｃ）はインサート成形状態を模式的に示してお
り、セットされた第１成形体の回りに第２成形体のパリ
ソンＰが供給されている。このときブローモールド内に
突出する第１成形体即ちダクト１の曲管部３とパリソン
Ｐとが接触する虞れが生じている訳であるが、その部分
はシート10により覆われている。FIG. 3 (c) schematically shows the insert molding state, in which the parison P of the second molded body is supplied around the set first molded body. At this time, there is a possibility that the first molded body protruding into the blow mold, that is, the curved tube portion 3 of the duct 1 and the parison P may come into contact with each other, but the portion is covered with the sheet 10.
かくしてブロー成形され、一体化したインサート成形体
の外観は同図（ｄ）に示されている。即ちこの成形時に
ダクト１の凹凸部８、９とボックス２のスリーブ部分と
が融着一体化する。なおシート10はボックス２内にてダ
クト１に取付けられたまま残る。The appearance of the insert-molded body that has been blow-molded and integrated in this way is shown in FIG. That is, during this molding, the uneven portions 8 and 9 of the duct 1 and the sleeve portion of the box 2 are fused and integrated. The seat 10 remains attached to the duct 1 in the box 2.
（作用） このように、レゾネータのダクト１などの第１成形体
が、ボックス２のような第２成形体に入り込んだインサ
ート成形体は入り込み部分即ち曲管部３の前後で一体化
しているので、インサート成形の終了と同時に本案成形
体として完了する。(Operation) As described above, the insert molded body in which the first molded body such as the duct 1 of the resonator has entered the second molded body such as the box 2 is integrated before and after the entering portion, that is, the curved pipe portion 3. The insert molding is completed at the same time as the molding of the present invention.
インサート成形に際して、ダイＤとマンドレルＭ間から
供給されるパリソンＰは、その先端部及び内側面がブロ
ーモールドにセットされているダクト１の曲管部３に接
触する可能性があるが、該部分３はシート10で覆われて
いるため接触しても付着せず、手順に従った的確な成形
が実施される。At the time of insert molding, the parison P supplied from between the die D and the mandrel M may come into contact with the curved pipe portion 3 of the duct 1 whose tip and inner surface are set in the blow mold. Since No. 3 is covered with the sheet 10, it does not adhere even if it comes into contact with it, and accurate molding is performed according to the procedure.
（効果） 以上のように本考案のインサート成形体は部品点数が必
要最小限度で良く、製造が容易で１回のインサート成形
によって完成する利点があり、第２の成形体が第１の成
形体に付着するのを防止する付着防止手段を第１の成形
体の入り込み部分に設けてあるので、インサート成形に
際し、第２成形体のパリソンが第１成形体に接触しても
付着しないから成形サイクルも短くなる等顕著な効果を
発揮する。(Effect) As described above, the insert-molded product of the present invention has the advantage that the number of parts is the minimum necessary, is easy to manufacture, and can be completed by one insert-molding, and the second molded product is the first molded product. Since the adhesion preventing means for preventing adherence to the first molded body is provided in the intruding portion of the first molded body, even if the parison of the second molded body does not adhere to the first molded body during insert molding, it does not adhere to the molding cycle. It also has a remarkable effect such as shortening.
図面は本考案の実施例を示すもので第１図は正面図、第
２図は付着防止手段の１例であるシートの展開図、第３
図（ａ）〜（ｄ）は成形過程の説明図である。 １……第１の成形体であるダクト、２……第２の成形体
であるボックス、３……入り込み部分である曲管部、10
……シート、Ｐ……パリソン。FIG. 1 is a front view, FIG. 2 is a development view of a sheet which is an example of adhesion preventing means, and FIG.
(A)-(d) is explanatory drawing of a molding process. DESCRIPTION OF SYMBOLS 1 ... Duct which is a first molded body, 2 ... Box which is a second molded body, 3 ... Curved tube portion which is an entering portion, 10
...... Sheet, P ... Parison.
Claims (2)
部分を有し、該入り込み部分の両側又は片側で第２の成
形体に一体化された構造を具えたインサート成形体であ
って、第２の成形体の成形の際にそのパリソンが接触す
るか接触する虞れのある前記入り込み部分に、パリソン
と材質的に付着し難い性質を有するか、あるいは粉体の
ようにパリソンと接触しても剥落して付着を防ぐ形態を
有する付着防止手段が設けられていることを特徴とする
インサート成形体。1. An insert molded body having a structure in which a first molded body has a portion that has entered a second molded body, and a structure that is integrated with the second molded body on both sides or one side of the inserted portion. When the second molded body is molded, the parison has a property that it is difficult to adhere to the parison in terms of material due to the contact with the parison, or there is a risk of contact with the parison. An insert-molded article, characterized in that it is provided with an adhesion-preventing means having a form in which it peels off even when it comes into contact with it to prevent adhesion.
であり、付着防止手段はポリウレタンフォーム又はポリ
エチレンフォームからなるシートで第１の成形体の入り
込み部分の表面に接着されている構造の請求項第１項記
載のインサート成形体。2. A structure in which the material of the second molded body is polypropylene resin, and the adhesion preventing means is a sheet made of polyurethane foam or polyethylene foam, which is adhered to the surface of the intruding portion of the first molded body. The insert molded article according to item 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4789789U JPH0615017Y2 (en) | 1989-04-24 | 1989-04-24 | Insert molding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4789789U JPH0615017Y2 (en) | 1989-04-24 | 1989-04-24 | Insert molding |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02139715U JPH02139715U (en) | 1990-11-21 |
| JPH0615017Y2 true JPH0615017Y2 (en) | 1994-04-20 |
Family
ID=31564231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4789789U Expired - Lifetime JPH0615017Y2 (en) | 1989-04-24 | 1989-04-24 | Insert molding |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0615017Y2 (en) |
-
1989
- 1989-04-24 JP JP4789789U patent/JPH0615017Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02139715U (en) | 1990-11-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |