JPH0667690B2 - Method for manufacturing corner portion of weather strip - Google Patents
Method for manufacturing corner portion of weather stripInfo
- Publication number
- JPH0667690B2 JPH0667690B2 JP63286279A JP28627988A JPH0667690B2 JP H0667690 B2 JPH0667690 B2 JP H0667690B2 JP 63286279 A JP63286279 A JP 63286279A JP 28627988 A JP28627988 A JP 28627988A JP H0667690 B2 JPH0667690 B2 JP H0667690B2
- Authority
- JP
- Japan
- Prior art keywords
- cut
- weather strip
- extrusion
- molding
- molded
- 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 - Fee Related
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
- B60J10/00—Sealing arrangements
- B60J10/20—Sealing arrangements characterised by the shape
- B60J10/21—Sealing arrangements characterised by the shape having corner parts or bends
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Window Of Vehicle (AREA)
- Seal Device For Vehicle (AREA)
Description
【発明の詳細な説明】 ＜産業上の利用分野＞ この発明は、自動車におけるウインドガラス、ドア、ス
ライデイングルーフパネル等をシールするウエザストリ
ツプのそのコーナ部の製造方法に関する。Description: TECHNICAL FIELD The present invention relates to a method for manufacturing a corner portion of a weather strip for sealing a wind glass, a door, a sliding roof panel and the like in an automobile.
＜従来の技術＞ 従来、この種のウエザストリツプ、例えば、ウインドガ
ラス用ウエザストリツプ１では、コーナ部Ｒを製造する
場合、まず、第９図に示すように、押出成形により押出
成形部２を直線状に形成し、その後、押出成形部２にお
ける折曲させてコーナ部Ｒとなる円弧の内周側若しくは
外周側の縁を切除し、押出成形部２に切除部３を形成す
る。<Prior Art> Conventionally, in a weather strip of this type, for example, in a weather glass weather strip 1, when manufacturing a corner portion R, first, as shown in FIG. 9, the extrusion molding portion 2 is linearly formed by extrusion molding. After that, the extruded part 2 is bent to cut the inner or outer edge of the arc to be the corner R, and the cut part 3 is formed in the extruded part 2.
そして、第10図に示すように、押出成形部２を折曲させ
て切除部３周縁を成形用型９内にセツトする そして、型閉じ後、切除部３にゴム等の成形材料を注入
して注入成形部４を形成し、第11図に示すように、コー
ナ部Ｒを製造していた。Then, as shown in FIG. 10, the extrusion molding portion 2 is bent to set the peripheral edge of the cutout portion 3 in the molding die 9, and after the mold is closed, a molding material such as rubber is injected into the cutout portion 3. The injection-molded portion 4 was formed in this manner, and the corner portion R was manufactured as shown in FIG.
＜発明が解決しようとする課題＞ しかし、従来のウエザストリツプのコーナ部の製造方法
では、押出成形部２を切除して形成する切除部３の面積
が大きく、そして、一般に押出成形部２につやがあり、
注入成形部４にはつやがないことから、コーナ部Ｒにお
けるつやのない、押出成形部２と外観を異ならせた注入
成形部４が大きくなつて、ウエザストリツプ１の外観を
低下させていた。<Problems to be Solved by the Invention> However, in the conventional method for manufacturing the corner portion of the weather strip, the area of the cut portion 3 formed by cutting the extrusion molding portion 2 is large, and in general, the extrusion molding portion 2 is glossy. Yes,
Since the injection-molded portion 4 was not glossy, the appearance of the weather strip 1 was deteriorated because the injection-molded portion 4 having a different appearance from the extrusion-molded portion 2 in the corner portion R had a larger appearance.
この発明は、上述の課題を解決するものであり、コーナ
部における注入成形部の占める面積を極力少なくするこ
とができて、外観を向上させることができるウエザスト
リツプのコーナ部の製造方法を提供することを目的とす
る。The present invention is to solve the above-mentioned problems, and to provide a method for manufacturing a corner portion of a weather strip capable of reducing the area occupied by the injection-molded portion in the corner portion as much as possible and improving the appearance. With the goal.
＜課題を解決するための手段＞ この発明は係るウエザストリツプのコーナ部の製造方法
は、押出成形により形成される押出成形部の所定部位を
切除し、前記押出成形部を折曲させて前記切除部周縁を
成形用型内にセツトし、前記切除部に成形材料を注入し
て注入成形部を形成することにより、コーナ部を製造す
るウエザストリツプのコーナ部の製造方法であつて、 前記押出成形部の短手方向における折曲させて前記コー
ナ部となる円弧の半径方向に前記押出成形部を複数に分
割するように、前記押出成形部の長手方向に沿う長手方
向カツト部と、 該長手方向カツト部から前記押出成形部の短手方向の外
周縁若しくは内周縁に向かう短手方向カツト部と、 を設けて前記切除部を形成することを特徴とする。<Means for Solving the Problems> The present invention relates to a method for manufacturing a corner portion of a weather strip, in which a predetermined portion of an extrusion-molded portion formed by extrusion molding is cut off and the extrusion-molded portion is bent to cut off the cut-off portion. A method of manufacturing a corner portion of a weather strip for manufacturing a corner portion by setting a peripheral edge in a molding die and injecting a molding material into the cutout portion to form an injection molding portion, wherein the extrusion molding portion is A longitudinal cut portion along the longitudinal direction of the extruded portion so as to divide the extruded portion into a plurality of pieces in the radial direction of an arc which is bent in the lateral direction to form the corner portion, and the longitudinal cut portion. To the outer peripheral edge or the inner peripheral edge in the lateral direction of the extruded portion, and the cut portion is formed.
＜発明の作用・効果＞ この発明に係る製造方法では、切除部が、押出成形部の
短手方向における折曲させてコーナ部となる円弧の半径
方向に押出成形部を複数に分割するように、押出成形部
の長手方向に沿う長手方向カツト部と、長手方向カツト
部から押出成形部の短手方向の外周縁若しくは内周縁に
向かう短手方向カツト部と、から形成されている。<Operation and Effect of the Invention> In the manufacturing method according to the present invention, the cutout portion is bent in the lateral direction of the extrusion molding portion so that the extrusion molding portion is divided into a plurality of pieces in the radial direction of the arc serving as the corner portion. It is formed of a longitudinal cut portion along the longitudinal direction of the extruded portion and a lateral cut portion extending from the longitudinal cut portion toward the outer peripheral edge or the inner peripheral edge of the extruded portion in the lateral direction.
そのため、押出成形部を折曲させて、注入成形部を成形
する成形用型内にセツトする際、切除部の長手方向カツ
ト部により押出成形部の短手方向で複数に分割された押
出成形部の分割体は、それぞれの短手方向の断面の中心
を中立点として、折曲される外周側が伸張するととも
に、折曲される内周側が圧縮されることとなる。Therefore, when bending the extrusion molding part and setting it in the molding die for molding the injection molding part, the extrusion molding part divided into a plurality in the lateral direction of the extrusion molding part by the longitudinal cutting part of the cutout part. With respect to the divided bodies, the outer peripheral side to be bent extends and the inner peripheral side to be bent is compressed, with the center of each cross section in the lateral direction as a neutral point.
そして、押出成形部の短手方向に分割されていない状態
で折曲させた場合には、押出成形部の折曲される外周側
と内周側とのそれぞれの伸張・圧縮の差が大きくなつ
て、外周側に内側に撓む部位が発生するとともに内周側
に大きなしわが発生することとなる。When the extruded part is bent in a state where it is not divided in the lateral direction, the difference in expansion / compression between the bent outer peripheral side and the inner peripheral side of the extruded part becomes large. As a result, a portion that bends inward is generated on the outer peripheral side, and large wrinkles are generated on the inner peripheral side.
しかし、この発明に係る押出成形部では、その短手方向
に複数に分割されているため、それぞれの分割体の外周
側と内周側との伸張・圧縮の差が小さくなり、さらに、
複数の分割体相互における外周側の分割体と内周側の分
割体との伸張・圧縮が短手方向カツト部で吸収されるこ
ととなつて、切除部における長手方向カツト部や短手方
向カツト部の幅を大きくしなくとも、撓んだり、しわが
発生したりすることなく、押出成形部を折曲して成形用
型内にセツトすることができる。However, in the extrusion-molded part according to the present invention, since it is divided into a plurality of parts in the lateral direction, the difference in expansion / compression between the outer peripheral side and the inner peripheral side of each divided body becomes small, and further,
The expansion / compression of the outer peripheral side divided body and the inner peripheral side divided body among the plurality of divided bodies are absorbed by the short-side cut portion, and the longitudinal-direction cut portion and the short-side cut portion of the cutout portion are absorbed. Even if the width of the portion is not increased, the extrusion-molded portion can be bent and set in the molding die without bending or wrinkling.
そして、切除部に成形材料を注入して注入成形部を形成
すれば、コーナ部を製造することができ、その注入成形
部は、幅の狭い長手方向カツト部と短手方向カツト部と
からなる切除部の部位に形成されており、面積が狭く、
押出成形部と外観を異ならせた注入成形部の占める面積
を少なくすることができ、従来のコーナ部より外観を向
上させて製造することができる。Then, a corner portion can be manufactured by injecting a molding material into the cutout portion to form an injection molding portion, and the injection molding portion is composed of a narrow longitudinal cut portion and a short transverse cut portion. It is formed in the part of the excised part, and the area is small,
It is possible to reduce the area occupied by the injection-molded portion having a different appearance from that of the extrusion-molded portion, and it is possible to manufacture the injection-molded portion with a better appearance than the conventional corner portion.
したがって、この発明に係るウエザストリツプのコーナ
部の製造方法では、コーナ部における注入成形部の占め
る面積を極力少なくすることができて、外観を向上させ
ることができる。Therefore, in the method for manufacturing the corner portion of the weather strip according to the present invention, the area occupied by the injection-molded portion in the corner portion can be reduced as much as possible, and the appearance can be improved.
＜実施例＞ 以下、この発明の一実施例を図面に基づいて説明する。<Embodiment> An embodiment of the present invention will be described below with reference to the drawings.
第１実施例で製造するウエザストリツプ11は、第４〜６
図に示すように、自動車のドアフレーム15にフレームガ
ーニツシユ16・17を介して配設され、ドアフレーム15と
ドアガラス18とをシールするドアガラスラン用のウエザ
ストリツプである。The weather strip 11 manufactured in the first embodiment is the fourth to sixth
As shown in the figure, it is a weather strip for a door glass run, which is arranged on a door frame 15 of an automobile through frame garnishes 16 and 17, and seals the door frame 15 and the door glass 18.
このウエザストリツプ11は、第１・２・４・５図に示す
ように、その短手方向の断面において、二つのヒレ部11
b・11cを有する逆Ｌ字形状の本体部11aから二つのリツ
プ部11d・11eが突出し、さらに、そのリツプ部11dと本
体部11aとを連結する壁部11fが形成される形状としてお
り、リツプ部11eと壁部11fがEPDM等のスポンジゴムで形
成されている他、EPDM等のソリツドゴムで形成されてい
る。そして、下部にコーナ部Ｒを備えて略直線状のウエ
ザストリツプ20に接続されている。As shown in FIGS. 1, 2, 4, and 5, the weather strip 11 has two fins 11 in the cross section in the lateral direction.
Two lip portions 11d and 11e project from an inverted L-shaped main body portion 11a having b and 11c, and a wall portion 11f that connects the lip portion 11d and the main body portion 11a is formed. The portion 11e and the wall portion 11f are formed of sponge rubber such as EPDM, and also formed of solid rubber such as EPDM. Further, a corner portion R is provided at the lower portion and is connected to a substantially linear weather strip 20.
このウエザストリツプ11のコーナ部Ｒの製造について述
べると、第２・４図に示すように、まず、本体部11a、
ヒレ部11b・11c、リツプ部11d・11e、及び壁部11fの各
部を備えた直線状のウエザストリツプ11を押出成形によ
り製造する。そして、押出成形により形成された押出成
形部12に、切除部13を形成する。この切除部13は、押出
成形部12の短手方向における折曲させてコーナ部Ｒとな
る円弧の半径方向に押出成形部12を二つの分割体12a・1
2bに分割するように、押出成形部12の長手方向に沿う長
手方向カツト部13aと、長手方向カツト部13aの端部から
押出成形部12の短手方向の内周縁に向かう短手方向カツ
ト部13bと、から形成されている。なお、実施例の場
合、コーナ部Ｒを形成した際、しわ等がなく折曲され、
かつ、分割体12a・12bの端面が略一致してウエザストリ
ツプ20と接続することができるよう、コーナ部Ｒの曲率
や分割体12a・12bの断面形状を考慮し、長手方向カツト
部13aの幅b1を約4mm、短手方向カツト部13bの幅b2を約1
0mmとしている。The manufacture of the corner portion R of the weather strip 11 will be described. As shown in FIGS.
A linear weather strip 11 including the fin portions 11b and 11c, the lip portions 11d and 11e, and the wall portion 11f is manufactured by extrusion molding. Then, the cut-out portion 13 is formed in the extrusion-molded portion 12 formed by extrusion molding. The cutout portion 13 is formed by bending the extrusion molding portion 12 in the lateral direction to form the corner portion R in a radial direction of an arc and dividing the extrusion molding portion 12 into two divided bodies 12a.
The longitudinal cut portion 13a along the longitudinal direction of the extrusion molded portion 12 so as to be divided into 2b, and the lateral cut portion extending from the end portion of the longitudinal cut portion 13a toward the inner peripheral edge in the lateral direction of the extrusion molded portion 12. And 13b. In the case of the embodiment, when the corner portion R is formed, it is bent without wrinkles,
In addition, the width b1 of the cut portion 13a in the longitudinal direction is taken into consideration in consideration of the curvature of the corner portion R and the cross-sectional shape of the divided bodies 12a and 12b so that the end faces of the divided bodies 12a and 12b can be substantially matched and connected to the weather strip 20. Is about 4 mm, and the width b2 of the cut portion 13b in the lateral direction is about 1
It is set to 0 mm.
その後、第３図に示すように、押出成形部12を折曲させ
て、後述する注入成形部14を成形する成形用型19内に切
除部13周縁をセツトし、型締めする。なお、この成形用
型19は、第４図の二点鎖線で示すように、上型19a、下
型19b、中型19c・19d・19e・19f、及び中芯19gとから構
成されている。After that, as shown in FIG. 3, the extrusion molding portion 12 is bent, the peripheral edge of the cut portion 13 is set in a molding die 19 for molding an injection molding portion 14, which will be described later, and the die is clamped. The molding die 19 is composed of an upper die 19a, a lower die 19b, middle dies 19c, 19d, 19e, 19f, and a center core 19g, as shown by the chain double-dashed line in FIG.
そして、押出成形部12のセツト時には、長手方向カツト
部13aにより押出成形部12の短手方向で二つに分割され
た分割体12a・12bは、第４図に示すように、それぞれの
短手方向の断面の中心を中立点G1・G2として、折曲され
る外周側が伸張するとともに、折曲される内周側が圧縮
されることとなる。この時、押出成形部12の短手方向に
分割されていない状態で折曲させた場合には、その押出
成形部12の断面の中心を中立点G0として、折曲される外
周側や内周側とのそれぞれの伸張・圧縮の差が大きくな
つて、外周側に内側に撓む部位が発生するとともに内周
側に大きなしわが発生することとなる。When the extrusion molding part 12 is set, the divided bodies 12a and 12b which are divided into two by the longitudinal cut portion 13a in the lateral direction of the extrusion molding part 12 are, as shown in FIG. With the center of the cross section in the direction as the neutral points G1 and G2, the bent outer peripheral side extends and the bent inner peripheral side is compressed. At this time, when the extruded part 12 is bent in a state where it is not divided in the lateral direction, the center of the cross section of the extruded part 12 is set as the neutral point G0, and the outer peripheral side or the inner part to be bent is bent. As the difference between the expansion and the compression with the side increases, a portion that bends inward is generated on the outer peripheral side, and large wrinkles are generated on the inner peripheral side.
しかし、実施例の押出成形部12では、その短手方向に二
つに分割されているため、それぞれの分割体12a・12bの
外周側と内周側との伸張・圧縮の差が小さくなり、さら
に、外周側の分割体12aと内周側の分割体12bとの伸張・
圧縮が短手方向カツト部13bで吸収されることとなつ
て、切除部13における長手方向カツト部13aや短手方向
カツト部13bの幅を大きくしなくとも、撓んだり、しわ
が発生したりすることなく、押出成形部12を折曲して成
形用型19にセツトすることができる。なお、実施例の場
合、セツト時の長手方向カツト部の幅B1は約4mmのまま
で、短手方向カツト部の幅B2は、分割体12bの端面と分
割体12aの端面とが一致し、殆ど0mmとなつた。However, in the extrusion-molded portion 12 of the embodiment, since it is divided into two in its lateral direction, the difference in expansion / compression between the outer peripheral side and the inner peripheral side of each divided body 12a ・ 12b becomes small, Further, the extension of the outer peripheral side divided body 12a and the inner peripheral side divided body 12b
The compression is absorbed by the short-side cut portion 13b, so that the lengthwise-direction cut portion 13a and the short-side cut portion 13b in the cutout portion 13 may be bent or wrinkled without increasing the width. Without doing so, the extrusion molding part 12 can be bent and set in the molding die 19. Incidentally, in the case of the embodiment, the width B1 of the longitudinal cut portion at the time of setting remains about 4 mm, the width B2 of the lateral cut portion, the end surface of the divided body 12b and the end surface of the divided body 12a coincide, It was almost 0 mm.
そして、型閉じ後、切除部13の部位にEPDM等のソリツド
ゴム材料を注入して注入成形部14を形成すれば、ウエザ
ストリツプ20を接続せるとともに、ウエザストリツプ11
にコーナ部Ｒを製造することができる。そして、実施例
の場合、その注入成形部14は、幅の狭い長手方向カツト
部13a（幅B1は約4mm）と短手方向カツト部13b（幅B2を
約0mm）とからなる切除部13に形成されており、面積が
狭く、押出成形部12と外観を異ならせた注入成形部14の
占める面積を少なくすることができ、ウエザストリツプ
11の外観を向上させることができる。Then, after closing the mold, if a solid rubber material such as EPDM is injected into the portion of the excision portion 13 to form the injection molding portion 14, the weather strip 20 can be connected and the weather strip 11 can be connected.
The corner portion R can be manufactured. Then, in the case of the embodiment, the injection molding portion 14 is a cutout portion 13 composed of a narrow longitudinal cut portion 13a (width B1 is about 4 mm) and a lateral cut portion 13b (width B2 is about 0 mm). Since it is formed, the area is small, and the area occupied by the injection molding portion 14 having a different appearance from the extrusion molding portion 12 can be reduced, and the weather strip
11 can improve the appearance.
なお、実施例の場合には、略直線状のウエザストリツプ
20との接続のためにも注入成形部14（幅B0を約7mmとし
ている）が形成されているが、従来の方法では、長手方
向カツト部13aの長さ分のリツプ部11eとその近傍の本体
部11aを切除し、その切除部の部位に注入成形部を形成
するため、実施例の方が注入成形部14の占める面積が非
常に狭くなり、ウエザストリツプ11の外観が向上する。
さらに、実施例の場合には、長手方向カツト部13aが、
自動車への装着後、リツプ部11eに隠れるため、一層外
観を向上させることができる。In the case of the embodiment, a substantially linear weather strip is used.
The injection-molded portion 14 (width B0 is set to about 7 mm) is also formed for connection with 20, but in the conventional method, the rip portion 11e corresponding to the length of the longitudinal cut portion 13a and its vicinity are formed. Since the main body 11a is cut off and the injection-molded portion is formed at the cut-off portion, the area occupied by the injection-molded portion 14 is much smaller in the embodiment, and the appearance of the weather strip 11 is improved.
Further, in the case of the embodiment, the longitudinal cut portion 13a is
After being mounted on the automobile, it is hidden by the lip portion 11e, so that the appearance can be further improved.
また、実施例では、ウインドガラス用のウエザストリツ
プ11について説明したが、第７図に示すラゲージドアや
コンパーメントドア等のドア用ウエザストリツプ21や、
第８図に示すスライデイングルーフパネル用のウエザス
トリツプ31にこの発明を応用しても良い。Further, in the embodiment, the weather strip 11 for windshield has been described, but the weather strip 21 for doors such as luggage doors and compartment doors shown in FIG.
The present invention may be applied to a weather strip 31 for a sliding roof panel shown in FIG.
第７図のウエザストリツプ21のコーナ部Ｒでは、直線状
に押出成形した押出成形部22のコーナ部Ｒの外周側に、
長手方向カツト部23aと短手方向カツト部23bとからなる
切除部23を設け、この切除部23の部位に注入成形部24を
形成したものである。At the corner portion R of the weather strip 21 shown in FIG. 7, on the outer peripheral side of the corner portion R of the extrusion molded portion 22 formed by linear extrusion molding,
A cut portion 23 including a longitudinal cut portion 23a and a short cut portion 23b is provided, and an injection molding portion 24 is formed at the cut portion 23.
また、第８図のウエザストリツプ31のコーナ部Ｒでは、
直線状に押出成形した押出成形部32のコーナ部Ｒとなる
内周側に、長手方向カツト部33aと短手方向カツト部33b
とからなる切除部33を設け、この切除部33の部位に注入
成形部34を形成したものである。Further, in the corner portion R of the weather strip 31 in FIG.
A longitudinal cut portion 33a and a short cut portion 33b are provided on the inner peripheral side of the extruded molding portion 32 that is linearly extruded to be the corner portion R.
The cut-out portion 33 is provided and the injection-molded portion 34 is formed in the cut-out portion 33.
さらに、実施例のウエザストリツプ11では、長手方向カ
ツト部13aを一つ形成するものを示したが、押出成形部1
2を三つ以上に分割するように、長手方向カツト部13aを
二つ以上形成してもよい。Further, in the weather strip 11 of the embodiment, the one in which one longitudinal cut portion 13a is formed is shown, but the extrusion molding portion 1
Two or more longitudinal cut portions 13a may be formed so that 2 is divided into three or more.
第１図は、この発明の一実施例により製造したウエザス
トリツプのコーナ部の斜視図、 第２図は、同実施例の切除部を形成した状態を示す斜視
図、 第３図は、同実施例の成形用型に押出成形部をセツトし
て型締めした状態を示す断面図であり、第４図のIII−I
II部位を示し、 第４図は、第１図のIV−IV部位を示す断面図、 第５図は、同実施例により製造したウエザストリツプを
自動車に装着した状態を示す斜視図であり、第６図のＡ
部を示し、 第６図は、同実施例により製造したウエザストリツプを
装着した自動車の側面図、 第７図は、同実施例で製造する他のウエザストリツプを
示す斜視図、 第８図は、同実施例で製造するさらに他のウエザストリ
ツプを示す斜視図、 第９図は、従来の製造方法において、押出成形部に切除
部を形成する状態を示す図、 第10図は、従来の製造方法において、成形用型に押出成
形部をセツトした状態を示す図、 第11図は、従来の製造方法により製造したウエザストリ
ツプの図である。 11……ウエザストリツプ、 12……押出成形部、 12a・12b……分割体、 13……切除部、 13a……長手方向カツト部、 13b……短手方向カツト部、 14……注入成形部、 Ｒ……コーナ部。FIG. 1 is a perspective view of a corner portion of a weather strip manufactured by an embodiment of the present invention, FIG. 2 is a perspective view showing a state in which a cutout portion of the embodiment is formed, and FIG. FIG. 3 is a cross-sectional view showing a state in which the extrusion molding part is set in the molding die of FIG.
II part is shown, FIG. 4 is a cross-sectional view showing the IV-IV part of FIG. 1, and FIG. 5 is a perspective view showing a state where the weather strip manufactured by the same embodiment is mounted on an automobile. Figure A
FIG. 6 is a side view of an automobile equipped with the weather strip manufactured by the same embodiment, FIG. 7 is a perspective view showing another weather strip manufactured by the same embodiment, and FIG. 8 is the same embodiment. FIG. 9 is a perspective view showing still another weather strip manufactured by an example, FIG. 9 is a view showing a state in which a cutout portion is formed in an extrusion molding part in a conventional manufacturing method, and FIG. 10 is a molding process in a conventional manufacturing method. FIG. 11 is a view showing a state where an extrusion molding part is set in a working die, and FIG. 11 is a view of a weather strip manufactured by a conventional manufacturing method. 11 …… Weather strip, 12 …… Extrusion molding part, 12a ・ 12b …… Divided body, 13 …… Removal part, 13a …… Longitudinal cut part, 13b …… Short direction cut part, 14 …… Injection molding part, R: Corner section.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.5 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｂ６０Ｊ 10/12 7634−3Ｄ Ｂ６０Ｊ 7/195 Ｚ ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 5 Identification code Internal reference number FI technical display location B60J 10/12 7634-3D B60J 7/195 Z
Claims (1)
定部位で切除し、前記押出成形部を折曲させて前記切除
部周縁を成形用型内にセツトし、前記切除部に成形材料
を注入して注入成形部を形成することにより、コーナ部
を製造するウエザストリツプのコーナ部の製造方法であ
つて、 前記押出成形部の短手方向における折曲させて前記コー
ナ部となる円弧の半径方向に前記押出成形部を複数に分
割するように、前記押出成形部の長手方向に沿う長手方
向カツト部と、 該長手方向カツト部から前記押出成形部の短手方向の外
周縁若しくは内周縁に向かう短手方向カツト部と、 を設けて前記切除部を形成することを特徴とするウエザ
ストリツプのコーナ部の製造方法。1. An extrusion-molded portion formed by extrusion molding is cut at a predetermined portion, the extrusion-molded portion is bent to set the periphery of the cut-out portion into a molding die, and a molding material is applied to the cut-out portion. A method of manufacturing a corner portion of a weather strip for manufacturing a corner portion by forming an injection molding portion by pouring, wherein the extrusion molding portion is bent in a lateral direction to form a corner portion in a radial direction of an arc. In order to divide the extrusion-molded portion into a plurality of parts, a longitudinal-direction cut portion along the longitudinal direction of the extrusion-molded portion, and from the longitudinal-direction cut portion toward an outer peripheral edge or an inner peripheral edge in the lateral direction of the extrusion-molded portion. A method for manufacturing a corner portion of a weather strip, comprising: forming a cut portion in the lateral direction and forming the cut portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63286279A JPH0667690B2 (en) | 1988-11-11 | 1988-11-11 | Method for manufacturing corner portion of weather strip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63286279A JPH0667690B2 (en) | 1988-11-11 | 1988-11-11 | Method for manufacturing corner portion of weather strip |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02133230A JPH02133230A (en) | 1990-05-22 |
| JPH0667690B2 true JPH0667690B2 (en) | 1994-08-31 |
Family
ID=17702309
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63286279A Expired - Fee Related JPH0667690B2 (en) | 1988-11-11 | 1988-11-11 | Method for manufacturing corner portion of weather strip |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0667690B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998018580A1 (en) * | 1996-10-25 | 1998-05-07 | Luxfer Group Limited | Bending of elongate elements |
| JP2009126443A (en) * | 2007-11-27 | 2009-06-11 | Nishikawa Rubber Co Ltd | Weather strip for bonnet cover |
-
1988
- 1988-11-11 JP JP63286279A patent/JPH0667690B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02133230A (en) | 1990-05-22 |
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| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |