JPS61246020A - Connection of moldings of automotive weather strip - Google Patents
Connection of moldings of automotive weather stripInfo
- Publication number
- JPS61246020A JPS61246020A JP60200975A JP20097585A JPS61246020A JP S61246020 A JPS61246020 A JP S61246020A JP 60200975 A JP60200975 A JP 60200975A JP 20097585 A JP20097585 A JP 20097585A JP S61246020 A JPS61246020 A JP S61246020A
- Authority
- JP
- Japan
- Prior art keywords
- cavity
- plastic material
- molded
- rubber
- rubbery
- 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
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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
Landscapes
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
Description
【発明の詳細な説明】
[産業上の利用分野]
この発明は押出成形により成形された押出成形部材の端
部に、型成形部を成形と同時に接続するグラスラン等の
自動車用ウェザストリップの型成形部接続方法に関する
。[Detailed Description of the Invention] [Industrial Application Field] This invention relates to the molding of automotive weather strips such as glass run, which connects a molded part to the end of an extruded member formed by extrusion molding at the same time as molding. Regarding the connection method.
[従来の技術]
第1図に示すごとくグラスランIはドア2の窓枠に組付
けられ使用される。しかし窓枠のコーナ部は直角等適宜
角度を形成しており、直線状に押出成形されたグラスラ
ンをそのまま曲げて使用すると曲折部ではグラスランの
形状が異常変形しドアの窓枠に組み付けることが困難と
なるような欠陥を生じ好ましくなく、これらの欠点を除
去する為に予めコーナ部を有するように形成する必要が
ある。このコーナ部を形成するには、コーナ部を別体で
成形し、直線状のグラスランを接続したり、あるいは直
線状のグラスランの一部を切り欠いて折り曲げていた。[Prior Art] As shown in FIG. 1, a glass run I is assembled into a window frame of a door 2 and used. However, the corners of the window frame form appropriate angles such as right angles, and if a straight extruded glass run is bent and used as is, the shape of the glass run will deform abnormally at the bend, making it difficult to assemble to the door window frame. This is undesirable because it causes defects such as, and in order to eliminate these defects, it is necessary to form it in advance to have corner portions. In order to form this corner part, the corner part is formed separately and a straight glass run is connected, or a part of the straight glass run is cut out and bent.
しかしグラスランの一部を切り欠いて折り曲げるものは
この切り欠き部より水濡れ等が発生する不具合があった
。このためコーナ部の形成には接続方法が多く用いられ
てきた。However, when a part of the glass run is cut out and bent, there is a problem that water gets wet from the cut out part. For this reason, many connection methods have been used to form the corner portions.
従来この接続方法は、第2図に示すごとく接続すべき2
木のグラスランのストレート部4.5を金型にセットし
、この金型にコーナ部3を形成することができるキャビ
ティを設けて、キャビティにグラスランのストレート部
4.5と同種のゴム又はプラスチック基材9例えばE
PDM 、軟質塩化ビニル等を注入して、EPDMの場
合には加硫し、コーナ部3を成形すると同時にストレー
ト部4.5とコーナ部3を加硫接着し、又軟質塩化ビニ
ルの場合には熱溶着していた。Conventionally, this connection method is based on two connections that should be made as shown in Figure 2.
The straight part 4.5 of the wooden glass run is set in a mold, a cavity in which the corner part 3 can be formed is provided in the mold, and the same type of rubber or plastic base as the straight part 4.5 of the glass run is placed in the cavity. Material 9 For example, E
PDM, soft vinyl chloride, etc. is injected, and in the case of EPDM, it is vulcanized, and at the same time the corner part 3 is formed, the straight part 4.5 and the corner part 3 are vulcanized and bonded, and in the case of soft vinyl chloride, It was heat welded.
[解決しようとする問題点]
しかしグラスランのコーナ部はドアのガラスが摺動する
さいに上下方向にストレート部が引っ張られるため強い
張力が働く、このためコーナ部とストレート部の接着に
は強い接着力が必要とされるが、ストレート部4.5と
コーナ部3との接合面は直線状をなし 接着面積も少な
く接着力が十分でなかった。そのため、ストレート部4
,5とコーナ部3とが剥離するという問題点があった。[Problem to be solved] However, when the door glass slides, the straight part of the glass run is pulled in the vertical direction, so strong tension is exerted on the corner part of the glass run.For this reason, strong adhesive is required to bond the corner part and the straight part. Although force was required, the bonding surface between the straight part 4.5 and the corner part 3 was linear and the bonding area was small, so the bonding force was not sufficient. Therefore, the straight part 4
, 5 and the corner portion 3 are separated from each other.
さらに、一般の自動車用ウェザストリップにおいても、
接合面の両端は固定して使用されるのが常であり、この
場合には、ゴム又はプラスチック材料の経時収縮による
張力が接合面に働くため、前述と同様な問題点があった
。Furthermore, in general automotive weather strips,
Both ends of the joint surface are usually used fixedly, and in this case, tension due to the aging contraction of the rubber or plastic material acts on the joint surface, resulting in the same problem as described above.
[解決するための手段]
本発明は、前述の問題点を解決するため、ゴム又はプラ
スチック材料から壁部を有するよう押出成形されてなる
押出成形部材の端面を、成形型のキャビティに臨まして
前記成形型に挿入し、前記キャビティにゴム又はプラス
チック材料を注入拳固化させ前記押出成形部材とほぼ同
一断面形状を有する型成形部を成形するとともに、該型
成形部と前記押出成形部材とを接続する自動車用ウェザ
ストリップの型成形部接続方法において、前記押出成形
部材の端部に前記壁部を厚み方向に貫通する凹部と、該
凹部と前記押出成形部材の前記端面とを連通ずる前記壁
部を厚み方向に貫通しかつ前記凹部より幅のせまい首部
とからなる切り欠き部を設けるとともに、ゴム又はプラ
スチック材料の注入時、前記切り欠き部に前記壁部とほ
ぼ同一肉厚の突起部を成形するという手段を採用した。[Means for Solving] In order to solve the above-mentioned problems, the present invention provides an extrusion-molded member formed by extrusion molding from a rubber or plastic material so as to have a wall portion, so that the end face thereof faces the cavity of a mold. Insert into a mold, inject rubber or plastic material into the cavity and solidify to form a molded part having approximately the same cross-sectional shape as the extruded member, and connect the molded part and the extruded member. A method for connecting a molded part of a weather strip for an automobile includes: a recess that penetrates the wall in the thickness direction at an end of the extruded member; and a wall that communicates the recess with the end surface of the extruded member. A notch is provided that penetrates in the thickness direction and has a neck narrower in width than the recess, and when the rubber or plastic material is injected, a protrusion having approximately the same thickness as the wall is formed in the notch. This method was adopted.
[作用舎効果]
本発明により得られた自動車用ウェザストリップは、型
成形部の突起部が押出成形部材の切り欠きに密着し投錨
効果を得られるとともに、接着面積を増すことができ、
極めて接着力が大きい、従って、ガラスの摺動もしくは
、ゴム又はプラスチック材料の経時収縮により1wc合
面に張力が働いても、押出成形部材と型成形部が剥離す
ることはない。[Effect effect] In the automobile weatherstrip obtained according to the present invention, the protrusion of the molded part is in close contact with the notch of the extrusion molded member, and an anchoring effect can be obtained, and the adhesion area can be increased.
The adhesive force is extremely strong, so even if tension is applied to the 1wc mating surface due to sliding of glass or shrinkage of rubber or plastic material over time, the extruded member and molded part will not separate.
[特有の効果]
なお、接着力を増す手段として、押出成形部材に首部を
設けることなく、凹部のみを設け、押出成形部材と型成
形部の一部が壁部厚み方向に重層するようし、該重層部
分を通じて、前記凹部にゴム又はプラスチック材料を充
填するような方法も考えられるが(特公昭45−102
33号公報。[Special Effects] As a means of increasing adhesive strength, only a recess is provided without providing a neck in the extruded member, so that the extruded member and a part of the molded part overlap in the wall thickness direction, A method of filling the concave portion with rubber or plastic material through the layered portion may also be considered (Japanese Patent Publication No. 45-102).
Publication No. 33.
特開昭50−119063号公報参照)、自動車用ウェ
ザストリップにおいては、型成形部と押出成形部材、と
の弾性力をでき得る極り均一に、もしくはでき得る限り
滑らかに変化させなければ、接続部分のシール性の低下
をきたすので、このような部分的に重層する構造とする
ことは望ましくない。(Refer to Japanese Unexamined Patent Publication No. 50-119063), in automotive weather strips, the elastic force between the molded part and the extrusion molded member must be changed as uniformly or as smoothly as possible to prevent connection. It is undesirable to have such a partially overlapping structure because it will reduce the sealing performance of the parts.
また、特にグラスランにおいては、その窓枠溝の形状と
グラスラン外形状の一致性、ガラスの進入路の確保等の
要因により、上述のような重層構造を採用することは実
質的に不可能である。In addition, especially for glass runs, it is virtually impossible to adopt the multi-layered structure described above due to factors such as the consistency of the shape of the window frame groove and the outside shape of the glass run, and the need to secure an entrance path for the glass. .
一方、本発明では、このような重層構造となることなく
、接着力を増加させることができ、シール性の低下等を
きたすこともない。On the other hand, in the present invention, the adhesive force can be increased without forming such a multilayer structure, and the sealing performance does not deteriorate.
[実施例]
次に1本発明の一実施例をグラスランを例に図面に基づ
いて説明する。[Example] Next, an example of the present invention will be described based on the drawings using a grass run as an example.
グラスランの製造は、以下のようにされる。The glass run is manufactured as follows.
まず、ゴム又は、プラスチック材料を第4図に示す断面
形状に押出成形後、所定長に裁断し、ストレード部41
.51を製作する。ゴムとしては例えば、E PDM
、クロロブレンゴム、SBR等が使用でき、合成樹脂と
しては例えば軟質塩化ビニル、軟質ポリエチレン、熱可
塑性ポリウレタン、EVA等が使用できる。First, a rubber or plastic material is extruded into the cross-sectional shape shown in FIG. 4, and then cut into a predetermined length.
.. 51 will be produced. Examples of rubber include E PDM
, chloroprene rubber, SBR, etc. can be used, and as the synthetic resin, for example, soft vinyl chloride, soft polyethylene, thermoplastic polyurethane, EVA, etc. can be used.
このストレート部41.51のガラス摺動面には必要に
応じて摺動抵抗を減少させる短m1iaの植毛、シリコ
ンオイルによるコーティング等が施される。The glass sliding surface of the straight portion 41.51 is coated with short m1ia hair flocking, silicone oil coating, etc. to reduce sliding resistance, if necessary.
次いで、このストレート部41.51の底壁部40の端
面34のほぼ中央から長手方向に切り欠き部42を設け
る。切り欠き部は端面34に開口する長手方向3〜51
鳳、巾3〜5mmの短冊状の首部35を有し1首部35
を介して先端は巾の広い凹部36となる。凹部は円形、
ダ円形、長方形、三角形等の形状でも良い、また切り欠
き部の形成は押出物の所要寸法への切断と同時にするこ
とができる。またストレート部の一部を切り欠いて折り
曲げることにより製造することができる。このグラスラ
ンのストレート部41.51を第75図に示すように金
型6にセットする。この金型6にはコーナ部31を形成
することができる空間であるキャビティ61を有してい
る。ストレート部41、 、51の端面34はキャビテ
ィ61に臨まれて配置される。Next, a notch portion 42 is provided in the longitudinal direction from approximately the center of the end surface 34 of the bottom wall portion 40 of this straight portion 41.51. The notch is opened in the end surface 34 in the longitudinal direction 3 to 51.
One neck part 35 has a rectangular neck part 35 with a width of 3 to 5 mm.
The tip becomes a wide recess 36 through the hole. The recess is circular;
The shape may be circular, rectangular, triangular, etc., and the notch can be formed at the same time as cutting the extrudate into the required size. Moreover, it can be manufactured by cutting out a part of the straight part and bending it. The straight portions 41, 51 of this glass run are set in the mold 6 as shown in FIG. 75. This mold 6 has a cavity 61 which is a space in which the corner portion 31 can be formed. The end faces 34 of the straight parts 41, 51 are arranged facing the cavity 61.
このキャビティ61に可塑化したゴム又はプラスチック
材料を注入口62より注入する。注入されたゴム又は合
成樹脂はキャビティ61に充填されるとキャビティの側
面に位置するストレート部41.51の端面34まで流
動して、さらに切り欠き部42.52の中にまで入り、
硬化する。ストレート部41.51の接合面及び切り欠
き部42.52の側面とキャビティに注入されたゴム又
は合成樹脂は溶融状態から硬化するときのゴムでは加硫
接着2合成樹脂では溶着により接着することができる。Plasticized rubber or plastic material is injected into this cavity 61 through an injection port 62. When the injected rubber or synthetic resin is filled into the cavity 61, it flows to the end face 34 of the straight part 41.51 located on the side of the cavity, and further enters the notch part 42.52.
harden. The rubber or synthetic resin injected into the joining surface of the straight part 41.51 and the side surface of the cutout part 42.52 and the cavity can be bonded by vulcanization adhesion for rubber and welding for synthetic resin when hardening from a molten state. can.
切り欠き部42.52に形成された突起部32.33に
切り欠き部が密着し投錨効果を得ることができ、さらに
接着面積が増加するため接着力は極めて大きい、さらに
大きな接着力を得るには接合面に接着剤を塗布すること
ができるなお、切り欠き部はグラスランの側壁部401
の設けても良い。The notch comes into close contact with the protrusion 32.33 formed in the notch 42.52, creating an anchoring effect, and since the adhesive area increases, the adhesive force is extremely large. The adhesive can be applied to the joint surface.The notch is located on the side wall 401 of the glass run.
may be provided.
第1図はグラスランの自動車のドアへの取付関係を示す
斜視図。
第2図は従来のグラスランのコーナ部を示す斜視図。
第3図はこの発明により得られたグラスランのコーナ部
を示す斜視図
第4図は第3図のグラスランのストレート部の押出形状
を示す断面図。
第5図は第3図の側面拡大図
第6図は金型に入れてコーナ部を接続する状態を示すモ
デル図である。
31・・・コーナ部(型成形部)
32.33・・・突起部 34・・・端面35・・
・首部 36・・・凹部 41,51・・・ストレ
ート部(押出成形部材) 42.52切り欠き部
40・・・底壁部 6・・・成形型61・・・キャ
ビティ
特許出願人 豊田合成株式会社
第1図
第2ズ
第3図
第4図FIG. 1 is a perspective view showing how a glass run is attached to an automobile door. FIG. 2 is a perspective view showing a corner portion of a conventional grass run. FIG. 3 is a perspective view showing a corner portion of the glass run obtained according to the present invention; FIG. 4 is a sectional view showing the extruded shape of the straight portion of the glass run shown in FIG. 3; FIG. 5 is an enlarged side view of FIG. 3. FIG. 6 is a model diagram showing the state in which the mold is placed in a mold and the corner portions are connected. 31... Corner part (mold forming part) 32.33... Projection part 34... End face 35...
・Neck part 36... Concave part 41, 51... Straight part (extrusion molded member) 42.52 Notch part
40... Bottom wall part 6... Molding mold 61... Cavity Patent applicant Toyoda Gosei Co., Ltd. Figure 1 Figure 2 Figure 3 Figure 4
Claims (1)
形されてなる押出成形部材の端面を、成形型のキャビテ
ィに臨まして前記成形型に挿入し、前記キャビティにゴ
ム又はプラスチック材料を注入・固化させ前記押出成形
部材とほぼ同一断面形状を有する型成形部を成形すると
ともに、該型成形部と前記押出成形部材とを接続する自
動車用ウエザストリップの型成形部接続方法において、
前記押出成形部材の端部に前記壁部を厚み方向に貫通す
る凹部と、該凹部と前記押出成形部材の前記端面とを連
通する前記壁部を厚み方向に貫通しかつ前記凹部より幅
のせまい首部とからなる切り欠き部を設けるとともに、
ゴム又はプラスチック材料の注入時、前記切り欠き部に
前記壁部とほぼ同一肉厚の突起部を成形したことを特徴
とする自動車用ウエザストリップの型成形部接続方法。The end face of an extruded member formed by extrusion molding from a rubber or plastic material to have a wall portion is inserted into the mold so as to face the cavity of the mold, and the rubber or plastic material is injected into the cavity and solidified, and the extrusion is performed. In a method for connecting a molded part of an automobile weather strip, which molds a molded part having substantially the same cross-sectional shape as a molded member and connects the molded part and the extrusion molded member,
A recess that penetrates the wall in the thickness direction at the end of the extrusion molded member, and a recess that penetrates the wall in the thickness direction that communicates the recess and the end surface of the extrusion molded member and is narrower in width than the recess. In addition to providing a notch consisting of a neck,
A method for connecting a molded part of a weather strip for an automobile, characterized in that, when injecting a rubber or plastic material, a protrusion having approximately the same thickness as the wall part is molded in the notch part.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP60200975A JPS61246020A (en) | 1985-09-11 | 1985-09-11 | Connection of moldings of automotive weather strip |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP60200975A JPS61246020A (en) | 1985-09-11 | 1985-09-11 | Connection of moldings of automotive weather strip |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS61246020A true JPS61246020A (en) | 1986-11-01 |
JPH0158049B2 JPH0158049B2 (en) | 1989-12-08 |
Family
ID=16433427
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP60200975A Granted JPS61246020A (en) | 1985-09-11 | 1985-09-11 | Connection of moldings of automotive weather strip |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS61246020A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03112629A (en) * | 1989-09-26 | 1991-05-14 | Nishikawa Rubber Co Ltd | Method of connecting rubber-extrusion molding part to molding part of mold |
JPH0924549A (en) * | 1995-07-11 | 1997-01-28 | Seibu Polymer Corp | Connecting method for water cut-off plate and apparatus used therefor |
JP2011084034A (en) * | 2009-10-19 | 2011-04-28 | Uchiyama Manufacturing Corp | Joining method of rubber molding, and manufacturing method of annular rubber gasket using the same |
FR2985228A1 (en) * | 2012-01-02 | 2013-07-05 | Peugeot Citroen Automobiles Sa | Trimming and/or sealing joint for use on circumference of pane of vehicle, has excrescences for anchoring sections at over molded part and being placed on welding interfaces of sections and widened in direction of over molded part |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS566617U (en) * | 1979-06-28 | 1981-01-21 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA1129914A (en) * | 1978-11-30 | 1982-08-17 | Harold L. Miller | Fuse with low current trip mechanism |
-
1985
- 1985-09-11 JP JP60200975A patent/JPS61246020A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS566617U (en) * | 1979-06-28 | 1981-01-21 |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03112629A (en) * | 1989-09-26 | 1991-05-14 | Nishikawa Rubber Co Ltd | Method of connecting rubber-extrusion molding part to molding part of mold |
JPH0924549A (en) * | 1995-07-11 | 1997-01-28 | Seibu Polymer Corp | Connecting method for water cut-off plate and apparatus used therefor |
JP2011084034A (en) * | 2009-10-19 | 2011-04-28 | Uchiyama Manufacturing Corp | Joining method of rubber molding, and manufacturing method of annular rubber gasket using the same |
FR2985228A1 (en) * | 2012-01-02 | 2013-07-05 | Peugeot Citroen Automobiles Sa | Trimming and/or sealing joint for use on circumference of pane of vehicle, has excrescences for anchoring sections at over molded part and being placed on welding interfaces of sections and widened in direction of over molded part |
Also Published As
Publication number | Publication date |
---|---|
JPH0158049B2 (en) | 1989-12-08 |
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