JPS63290714A - Corner molding method for weather strip for automobile - Google Patents
Corner molding method for weather strip for automobileInfo
- Publication number
- JPS63290714A JPS63290714A JP62125377A JP12537787A JPS63290714A JP S63290714 A JPS63290714 A JP S63290714A JP 62125377 A JP62125377 A JP 62125377A JP 12537787 A JP12537787 A JP 12537787A JP S63290714 A JPS63290714 A JP S63290714A
- Authority
- JP
- Japan
- Prior art keywords
- section
- mold
- trim
- corner
- seal
- 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
Links
- 238000000465 moulding Methods 0.000 title claims abstract description 12
- 238000000034 method Methods 0.000 title claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 2
- 238000001125 extrusion Methods 0.000 abstract description 4
- 238000001816 cooling Methods 0.000 abstract description 2
- 239000007787 solid Substances 0.000 abstract description 2
- 238000010438 heat treatment Methods 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection 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
- B29C45/14336—Coating a portion of the article, e.g. the edge of the article
- B29C45/14409—Coating profiles or strips by injecting end or corner or intermediate parts
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は自動車用ウェザストリップのコーナ部分を型成
形する方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for molding corner portions of automotive weather strips.
［従来技術］
自動車ボデーの開口にはこれに沿ってドア等の開閉部材
との間をシールするウェザストリップが装着される。[Prior Art] A weather strip is attached along an opening of an automobile body to seal the opening and closing member such as a door.
第１図は自動車ボテ−のドア開口に沿って取付けられた
ウェザストリップを示すもので、ウェザストリップ１は
第２図に示すように開口に形成したフランジ２に保持せ
しめる断面Ｕ字形のトリム部１１と、トリム部１１の側
面に形成され、ドアの外周と接する中空状等のシール部
１２を備えた押出成形品である。FIG. 1 shows a weather strip installed along the door opening of an automobile body.The weather strip 1 is shown in FIG. It is an extrusion molded product having a sealing part 12, such as a hollow shape, formed on the side surface of the trim part 11 and in contact with the outer periphery of the door.
ところで、このウェザストリップ１をドア開口のコーナ
部分Ａ（第１図）に沿って屈曲せしめると、シール部１
２が不規則に変形してシール性が低下する。そこでコー
ナ部分Ａのみは一般に型成形で成形されている。By the way, when this weather strip 1 is bent along the corner part A of the door opening (Fig. 1), the seal part 1
2 becomes irregularly deformed and the sealing performance deteriorates. Therefore, only the corner portion A is generally formed by molding.
第５図および第６図は型成形の代表例を示すもので、押
出成形されたウェザストリップ１のうちシール部１２の
コーナ部分を第５図のように切除し、トリム部１１を所
定形状に屈曲させて第６図に示すように複数の分割型よ
りなる金型３にセットし、シール部１２の切除された部
分にシール部形成材料をスプル４１から供給してシール
部の型成形コーナ部分１２ａを形成している。FIGS. 5 and 6 show typical examples of molding. The corner portion of the seal portion 12 of the extruded weather strip 1 is cut out as shown in FIG. 5, and the trim portion 11 is shaped into a predetermined shape. It is bent and set in a mold 3 consisting of a plurality of split molds as shown in FIG. 6, and a seal forming material is supplied from a sprue 41 to the cut out part of the seal part 12 to form a corner part of the seal part. 12a.
［本発明が解決しようとする問題点］
ところで上記型成形を行なう場合、第６図に示すように
型開きの都合上、分割線４２を型成形コーナ部分１２ａ
の中央に位置せしめている。このため、該部分１２ａの
表面にはバリ５が発生する。[Problems to be Solved by the Present Invention] By the way, when performing the above molding, the parting line 42 is placed at the molding corner portion 12a for convenience of opening the mold, as shown in FIG.
It is located in the center of Therefore, burrs 5 are generated on the surface of the portion 12a.
バリ５はウェザストリップ装着時、外観に現れる。Burr 5 appears on the exterior when the weather strip is installed.
ため見栄を損ねる。従って著しい場合にはバリ５を切除
する作業を必要とする。It spoils your appearance. Therefore, in severe cases, it is necessary to remove the burr 5.
そこで本発明は、コーナ部分の外観にパリの現れないウ
ェザストリップを製造する方法を提供し、もって従来の
問題点を解決することを目的とするものである。SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a method for manufacturing a weather strip in which no cracks appear on the appearance of the corner portions, thereby solving the conventional problems.
［問題点を解決するための手段］
本発明は第３図および第４図に示すように、押出成形ウ
ェザストリップ１のシール部１２のコーナ部分を切除す
るに際し、トリム部１１から金型４へのセット時に分割
線４２にかかる位置に至るまでの部分１２０を残して他
の部分を切除し、金型４にセットして上記能の部分を型
成形することを特徴とする。[Means for Solving the Problems] As shown in FIGS. 3 and 4, the present invention provides that when cutting out the corner portion of the seal portion 12 of the extrusion-molded weather strip 1, a At the time of setting, the part 120 up to the parting line 42 is left and the other part is cut out, and the part is set in the mold 4 and the above-mentioned part is molded.
［作用効果］
しかして本発明によれば、ウェザストリップのコーナ部
分ではシール部１２は金型の分割線位置で型成形されな
いから、外観に現れる部分にパリはない。従ってコーナ
部分の見栄がよく、またバリ除去を必要としない。[Operations and Effects] According to the present invention, since the seal portion 12 is not molded at the parting line position of the mold in the corner portion of the weather strip, there is no burr in the portion that appears externally. Therefore, the corner parts look good and do not require burr removal.
［実施例］
第３図および第４図に示す実施例において、ウェザスト
リップ１は押出成形品で、ソリッドゴムよりなる断面Ｕ
字形のトリム部１１と、スポンジゴムよりなる中空状の
シール部１２を備えている。[Example] In the example shown in FIGS. 3 and 4, the weather strip 1 is an extrusion molded product and has a cross section U made of solid rubber.
It includes a letter-shaped trim part 11 and a hollow seal part 12 made of sponge rubber.
トリム部１１には屈曲変形可能な芯金１３が埋設されて
いる。A core metal 13 that can be bent and deformed is embedded in the trim part 11.
コーナ部分を成形するに際しては先ず、トリム側の一部
１２０を残してシール部１２のコーナ部分を切除する。When forming the corner portion, first, the corner portion of the seal portion 12 is cut away leaving a portion 120 on the trim side.
そしてトリム部１１をシール部切除個所で屈曲させ金型
４にセットする。切除されずに残されたトリム側の一部
１２０の高さは、金型４へのセット時に分割線４２より
も高くなる幅としである。Then, the trim part 11 is bent at the part where the seal part is removed and set in the mold 4. The height of the portion 120 on the trim side that is left uncut is such that it is higher than the parting line 42 when set in the mold 4.
金型４のスプル４１よりスポンジゴムをシール部成形キ
ャビティへ注入する。冷却後、型開きして第３図に示す
コーナ部分が形成される。Sponge rubber is injected from the sprue 41 of the mold 4 into the seal molding cavity. After cooling, the mold is opened to form the corner portion shown in FIG. 3.
本発明のウェザストリップは、コーナ部分において外観
に出る部分には従来のウェザストリップにおけるが如き
パリがなく見栄が良好である。The weatherstrip of the present invention has a good appearance in the corner portions, where there is no burr like in conventional weatherstrips.
第１図はウェザストリップを備えた自動車のドア開口部
の斜視図、第２図は第１図の■−■線に沿う断面図、第
３図および第４図は本発明の実施例を示すもので、第３
図はウェザストリップのコーナ部分の斜視図、第４図は
第３図のｒＶ−ｒＶ線に沿う型成形時の断面図、第５図
は従来のウェザストリップのコーナ部分の斜視図、第６
図は第５図のＶｌ−ＶＩ線に沿う型成形時の断面図であ
る。
１・・・・・・ウェザストリップ
Ａ・・・・・・コーナ部分
１１・・・・・・トリム部
１２・・・・・・シール部
４・・・・・・金型
４２・・・・・・分割線
５・・・・・・パリ
第１図
＄２図
第３図
第４０FIG. 1 is a perspective view of a door opening of an automobile equipped with a weather strip, FIG. 2 is a sectional view taken along the line ■-■ in FIG. 1, and FIGS. 3 and 4 show embodiments of the present invention. 3rd thing
The figure is a perspective view of a corner portion of a weatherstrip, FIG. 4 is a cross-sectional view taken along line rV-rV in FIG.
The figure is a sectional view taken along line Vl-VI in FIG. 5 during molding. 1... Weather strip A... Corner part 11... Trim part 12... Seal part 4... Mold 42... ...Parting line 5...Paris Figure 1 $2 Figure 3 Figure 40
Claims (1)
リム部と、トリム部の側面に形成し上記開口を開閉する
部材の外周と接してシール作用をなすシール部を備えた
ウェザストリップのコーナ部分を型成形するに際し、ウ
ェザストリップのコーナ部分におけるシール部をトリム
部から成形用金型の分割線に至る部分を残して切除し、
コーナ部分を所定の形状に屈曲させて金型にセットし、
シール部の切除された個所にシール部形成材料を注入し
て成形することを特徴とする自動車用ウェザストリップ
のコーナ成形方法。A corner portion of a weather strip comprising a trim portion having a U-shaped cross section and held along an opening in an automobile body, and a sealing portion formed on a side surface of the trim portion to perform a sealing action by contacting the outer periphery of a member for opening and closing the opening. When molding the weatherstrip, remove the seal part at the corner part of the weatherstrip, leaving only the part from the trim part to the parting line of the molding die,
Bent the corner part into the specified shape and set it in the mold,
A method for forming a corner of a weather strip for an automobile, characterized by injecting a seal forming material into a portion where a seal portion has been cut out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62125377A JPS63290714A (en) | 1987-05-22 | 1987-05-22 | Corner molding method for weather strip for automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62125377A JPS63290714A (en) | 1987-05-22 | 1987-05-22 | Corner molding method for weather strip for automobile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63290714A true JPS63290714A (en) | 1988-11-28 |
| JPH0511732B2 JPH0511732B2 (en) | 1993-02-16 |
Family
ID=14908626
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62125377A Granted JPS63290714A (en) | 1987-05-22 | 1987-05-22 | Corner molding method for weather strip for automobile |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63290714A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5035937A (en) * | 1989-07-26 | 1991-07-30 | Toyoda Gosei Co., Ltd. | Weather strip |
| US5258157A (en) * | 1990-04-12 | 1993-11-02 | Toyoda Gosei Co., Ltd. | Method for joining extruded weather strips and resulting weather strip for motor vehicle |
| US5456874A (en) * | 1991-07-13 | 1995-10-10 | Saint Gobain Vitrage International | Process for producing a glazing equipped with a peripheral frame based on a polymer |
| KR20200094426A (en) * | 2019-01-30 | 2020-08-07 | 평화오일씰공업주식회사 | Mold for forming sealing device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58163636A (en) * | 1982-03-24 | 1983-09-28 | Kinugawa Rubber Ind Co Ltd | Manufacture of weatherstrip for use with automobile |
-
1987
- 1987-05-22 JP JP62125377A patent/JPS63290714A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58163636A (en) * | 1982-03-24 | 1983-09-28 | Kinugawa Rubber Ind Co Ltd | Manufacture of weatherstrip for use with automobile |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5035937A (en) * | 1989-07-26 | 1991-07-30 | Toyoda Gosei Co., Ltd. | Weather strip |
| US5258157A (en) * | 1990-04-12 | 1993-11-02 | Toyoda Gosei Co., Ltd. | Method for joining extruded weather strips and resulting weather strip for motor vehicle |
| US5456874A (en) * | 1991-07-13 | 1995-10-10 | Saint Gobain Vitrage International | Process for producing a glazing equipped with a peripheral frame based on a polymer |
| US5547359A (en) * | 1991-07-13 | 1996-08-20 | Saint Gobain Virtage International | Apparatus for producing a glazing equipped with a peripheral frame based on a polymer |
| US5580628A (en) * | 1991-07-13 | 1996-12-03 | Saint Gobain Vitrage International | Process and apparatus for producing a glazing equipped with a peripheral frame based on a polymer |
| KR20200094426A (en) * | 2019-01-30 | 2020-08-07 | 평화오일씰공업주식회사 | Mold for forming sealing device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0511732B2 (en) | 1993-02-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |