JPS5923990B2 - Wiper blade manufacturing method - Google Patents

Wiper blade manufacturing method

Info

Publication number
JPS5923990B2
JPS5923990B2 JP57027155A JP2715582A JPS5923990B2 JP S5923990 B2 JPS5923990 B2 JP S5923990B2 JP 57027155 A JP57027155 A JP 57027155A JP 2715582 A JP2715582 A JP 2715582A JP S5923990 B2 JPS5923990 B2 JP S5923990B2
Authority
JP
Japan
Prior art keywords
wiper blade
extruded
base
lip
extruded material
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
Application number
JP57027155A
Other languages
Japanese (ja)
Other versions
JPS58145433A (en
Inventor
民蔵 杉浦
豊 松沢
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.)
FUKOKU GOMU KOGYO KK
Original Assignee
FUKOKU GOMU KOGYO KK
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 FUKOKU GOMU KOGYO KK filed Critical FUKOKU GOMU KOGYO KK
Priority to JP57027155A priority Critical patent/JPS5923990B2/en
Publication of JPS58145433A publication Critical patent/JPS58145433A/en
Publication of JPS5923990B2 publication Critical patent/JPS5923990B2/en
Expired legal-status Critical Current

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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0022—Combinations of extrusion moulding with other shaping operations combined with cutting
    • 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
    • B29C2793/00—Shaping techniques involving a cutting or machining operation
    • B29C2793/0063—Cutting longitudinally
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/12—Articles with an irregular circumference when viewed in cross-section, e.g. window profiles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
    • B29L2031/305—Wipers

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Description

【発明の詳細な説明】 本発明はワイパーブレードの製造方法に関する。[Detailed description of the invention] The present invention relates to a method of manufacturing a wiper blade.

従来のワイパーブレードは一般ニコンプレッション成形
により得ている。Conventional wiper blades are obtained by general compression molding.

しかし一般にコンブレツヨン成形は長いモノが得難く、
特に基部に袋を有するスノーブレードは中子が抜は難い
という加工面での難さがある。However, in general, it is difficult to obtain long pieces with combination molding,
In particular, snow blades that have a bag at the base are difficult to process because the core is difficult to remove.

このためこれらブレードを押出し成形により成形するこ
とが考えられるが、ワイパーブレードのリップ暗すは巾
が１ｍｍ１状下であり、このような薄肉部を有する異形
のものを押出成形する場合、肉の薄い部分と厚い部分と
で生ゴムの流れに差を生じ、安定した形状に押出し出来
ない。For this reason, it is conceivable to mold these blades by extrusion molding, but the width of the lip of the wiper blade is less than 1 mm, and when extrusion molding an irregularly shaped item with such a thin wall part, it is difficult to There is a difference in the flow of raw rubber between the thicker parts and the thicker parts, making it impossible to extrude it into a stable shape.

これを解消するため押出しダイにテーパを付けて流れの
悪い部分の流れをうながしたり、又は流れの良い部分の
ダイ離面に邪摩片を介在させて該部の流れを阻害する等
の手段が取られることはある。To solve this problem, there are measures such as tapering the extrusion die to encourage the flow in areas where the flow is poor, or interposing a friction piece on the die separation surface in the areas where the flow is good to obstruct the flow in those areas. It can be taken.

しかしこれらの方法は長年の経験と感により調節するも
ので、各押出し成形機毎にその性能が変り一定の精度を
備えるものが得難いの不都合があり、特に拭性能に影響
するリップ部を一定の精度を有するものに押出し成形す
ることはきわめて困難である。However, these methods are adjusted based on many years of experience and intuition, and have the disadvantage that the performance varies with each extruder, making it difficult to obtain a device with a certain degree of precision. Extrusion molding with precision is extremely difficult.

このため従来は前記のごとき不都合があるにもかＸわら
ず一般にコンプレッション成形によす成形されていた。For this reason, in the past, compression molding was generally used despite the above-mentioned disadvantages.

本発明はか＼る現状に鑑みなされたもので、第１発明は
ワイパーブレードのリップ先端に膨大部を有するものに
押出成形して形成した合成ゴム、生ゴムからなる押出材
を、次いで加硫成形した後膣膨大部の切除並びに長さ方
向の切断を行うことを特徴とするワイパーブレードの製
造方法であり、第２発明並びに第３発明は第１発明に於
いて特に加硫成形時に押出成形材を変形させることなく
搬送する手段を付加したワイパーブレードの製造方法で
、第２発明はワイパーブレードのリップ先端にワイパー
ブレードの基部と岡山の膨大部を有する合成ゴム、生ゴ
ムからなる押出成形材を基部と膨大部が横力向に並ぶと
とく押出成形し、該押出成形材を基部と膨大部との各側
面でコンベヤ上に載置して搬送しつ＼加硫成形した後該
膨大部の切除並びに長さ方向の切断を行うことを特徴と
し、第３発明はワイパーブレードのリップ先端に膨大部
を有する押出成形材を、ワイパーブレードの基部が下と
なり膨大部が上となる起立状態に押出成形した後、該押
出成形材を、該基部で搬送コンベヤ上に支承させると共
に膨大部をガイドに案内させて搬送しつつ加硫成形した
後該膨大部の切除並びに長さ方向の切断を行うことを特
徴とする。The present invention has been made in view of the current situation, and the first invention is to extrude an extruded material made of synthetic rubber or raw rubber into a wiper blade having an enlarged portion at the tip of its lip, and then vulcanize it. This is a method for manufacturing a wiper blade, characterized in that the vaginal ampullae is removed and cut in the length direction after the vulcanization is performed. The second invention is a method for manufacturing a wiper blade that includes a means for conveying the wiper blade without deforming it, and the second invention is a method of manufacturing a wiper blade, in which an extruded material made of synthetic rubber or raw rubber having a base part of the wiper blade and a large part of Okayama is attached to the tip of the lip of the wiper blade. When the ampullae are lined up in the direction of lateral force, extrusion molding is performed, and the extruded material is placed on a conveyor on each side of the base and the ampullae, conveyed, vulcanized, and then the ampullae is cut off. The third invention is characterized by cutting in the length direction, and the third invention is characterized by extruding an extruded material having a bulge at the tip of the lip of a wiper blade into an upright state with the base of the wiper blade at the bottom and the bulge at the top. After that, the extruded material is supported by the base on a conveyor, and the enlarged part is guided by a guide and conveyed while being vulcanized and formed, and then the enlarged part is removed and cut in the length direction. Features.

本発明を図面に示す実施例装置につき説明する。The present invention will be explained with reference to an embodiment shown in the drawings.

図面で１は押出成形機、２はマイクロ波加熱炉等の一次
加硫機、３は熱風炉等の二次加硫機を示し、押出成形機
１によりワイパーブレードのリップａの先端に膨大部す
を有するものに押出成形して押出成形材Ｃを得る。In the drawing, 1 is an extrusion molding machine, 2 is a primary vulcanizer such as a microwave heating furnace, and 3 is a secondary vulcanizer such as a hot air oven. Extrusion molded material C is obtained by extrusion molding into a material having a cross-section.

かくするときは、該膨大部すの存在により押出成形時に
生ゴムの流れが遅くなる肉薄のリップ部の生ゴムの流れ
をカバーし、鎖部も一様に押出し成形し得て、該肉薄の
リップ部に歪み、肉厚の誤差等を生じない。In this case, the presence of the enlarged part covers the flow of raw rubber at the thin lip part where the flow of raw rubber slows during extrusion molding, the chain part can also be extruded uniformly, and the thin lip part No distortion or wall thickness errors occur.

尚この押出成形材Ｃは、次いで一次二次の加硫機２．３
により加硫し、次いで切断機４により膨大部すを切除す
ると共に長さ方向の適当長さに切断する。This extruded material C is then passed through a primary and secondary vulcanizer 2.3.
Then, the ampullae is cut off using a cutting machine 4, and the material is cut into an appropriate length in the longitudinal direction.

この切除と切断はどちらを先に行なっても良い。Either excision or cutting may be performed first.

第１図乃至第３図に示すものは押出成形機１によってワ
イパーブレードのリップａの先端にワイパーブレードの
基部ｄと回申の膨大部すを有するものに押出成形した押
出成形材Ｃを基部ｄと膨大部すが横方向に並ぶととく押
出成形し、該押出成形材Ｃを一次加硫機２に設けた搬送
コンベヤ５上に基部ｄと膨大部すとの各側面で載置して
搬送しつ＼加硫成形する。1 to 3, an extruded material C is extruded by an extrusion molding machine 1 into a material having a base portion d of the wiper blade and a circular enlarged portion at the tip of the lip a of the wiper blade. When the enlarged parts are lined up in the horizontal direction, extrusion molding is performed, and the extruded material C is placed on the conveyor 5 provided in the primary vulcanizer 2 on each side of the base part d and the enlarged part and conveyed. Vulcanize and mold.

かくするときは、きわめて変形し易い生ゴム状態の押出
成形材ｃＶｃ無理を生ぜず、特にクツ１８部を変形させ
ることなく搬送することが出来る。In this case, the extruded material cVc in the raw rubber state, which is extremely easily deformed, is not strained, and in particular, the shoe 18 can be transported without being deformed.

尚図示するものはワイパーブレードの１対をリップ先端
側で連結する式のものに押出成形するようにした。In the illustrated example, a pair of wiper blades are extruded and connected at the tip end of the lip.

第４図乃至第６図に示すものは、押出成形機１によって
ワイパーブレードのリップａの先端に膨大部すを有する
押出成形材Ｃをワイパーブレードの基部ｄが下となり膨
大部が上となる起立状態に押出成形し、次いで該押出成
形材Ｃを一次加硫機２に設けた搬送コンベヤー５上に基
部ｄを支持させると共に該膨大部すの両側をガイドロー
ル等のガイド６．６間に挾持しつ＼一次加硫機２内を搬
送しつ＼加硫するようにした。4 to 6, an extrusion molding material C having an enlarged portion at the tip of the lip a of a wiper blade is formed by an extrusion molding machine 1 into an upright molding with the base d of the wiper blade being at the bottom and the enlarged portion being at the top. Then, the extruded material C is supported by the base part d on a conveyor 5 provided in the primary vulcanizer 2, and both sides of the enlarged part are sandwiched between guides 6 and 6 such as guide rolls. The material is transported through the primary vulcanizer 2 and vulcanized.

かくするときは、押出成形材Ｃは起立状態を保って加硫
成形されるため重力の影響等により押出成形直後のきわ
めて変形し易い押出成形材Ｃを歪形することなく正しい
姿勢を保って加硫成形出来る。When doing this, the extruded material C is vulcanized while maintaining its upright state, so the extruded material C, which is extremely susceptible to deformation immediately after extrusion molding due to the influence of gravity, etc., can be vulcanized while maintaining its correct posture without being distorted. Can be molded using sulfur.

この場合該ガイド６．６は一次加硫機２の全長に亘って
設けても良く又は入口側のみに設けるものであっても良
い。In this case, the guide 6.6 may be provided over the entire length of the primary vulcanizer 2, or may be provided only on the inlet side.

尚この実施例では基部に袋ｅを備えたスノーブレードを
押出成形により得る場合の実施例を示すがこの場合搬送
ベルトコンベヤ５には該部ｅの両側を支承する補助ベル
トコンベヤ５ａ、５ａを設けることが望ましい。In this embodiment, a snow blade having a bag e at its base is obtained by extrusion molding. In this case, the conveyor belt 5 is provided with auxiliary belt conveyors 5a, 5a for supporting both sides of the part e. This is desirable.

尚押出成形機１はシリンダ７内にスクリューコンベヤ８
を備え且つ前面にダイ９を備え該スクリューコンベヤ８
の駆動により該ダイ９から生ゴムを押出成形するもので
あること特に一般に用いられているものと変らない。The extrusion molding machine 1 has a screw conveyor 8 inside the cylinder 7.
and a die 9 on the front surface of the screw conveyor 8.
The extrusion of raw rubber from the die 9 by the drive of the die 9 is the same as that commonly used.

又膨大部すの切除は例えば、膨大部すを基準として行う
ことが出来る。Also, the ampulla can be resected, for example, using the ampulla as a reference.

これを示すものが第７図で、このものは、膨大部すを挿
着する溝１０ａを備えたカット治具１０を用意し、該カ
ット治具１０の溝１０ａ内に膨大部すを挿着した状態で
押出成形材Ｃを載置し、該カット治具１０と一定の関係
位置に設げられるカッタ１１により押切切断する。This is shown in FIG. 7, in which a cutting jig 10 having a groove 10a into which the ampulla is inserted is prepared, and the ampulla is inserted into the groove 10a of the cutting jig 10. In this state, the extruded material C is placed and cut by force using a cutter 11 provided at a fixed position relative to the cutting jig 10.

このように本発明によるときは、ワイパーブレードのリ
ップ先端に膨大部を有するものに押出成形して形成した
押出成形材を得たので、該肉厚が薄く生ゴムの流れが悪
いリップ部を該膨大部の形成によりカバーし、該リップ
部も他の部分と一様に押出成形することが出来て該肉薄
のリップ部に歪み肉厚の誤差が生ぜず、これにともなう
拭性能の劣化を未然に防ぎ得られ、第２発明のごとくワ
イパーブレードのリップ先端にワイパーブレードの基部
と回申の膨大部を有するととく押出成形材を形成し、押
出成形直後のきわめて変形し易い押出成形材を、基部と
膨大部との各側面でコンベヤ上に載置して搬送しつ＼加
硫成形させるので、該押出成形材に無理を生じて変形す
る等の不都合がなく、更に第３発明のごとくワイパーブ
レードのリップ先端に膨大部を有する生ゴムからなる押
出成形材をワイパーブレードの基部が下となり膨大部が
上となる起立状態に押出成形した後該押出成形材を該基
部で搬送コンベヤ上に支承させると共に膨大部をガイド
に案内させて搬送しつ＼加硫成形させるようにしたので
、押出成形材は重力により１方に傾向（等のことがなく
、常に正しい姿勢を保ち続は得られるので、第２第３発
明によれば、加硫成形時にリップ部が彎曲又は屈曲した
状態で加硫成形されることを未然に防いで、抗性能の優
れたワイパーブレードを得ることが出来るの効果がある
。In this way, according to the present invention, an extrusion molded material is obtained by extrusion molding into a wiper blade having a bulge at the tip of its lip. Since the lip part can be extruded uniformly with other parts, the thin lip part will not be distorted and errors in wall thickness will not occur, and the resulting deterioration in wiping performance can be prevented. By forming an extruded material having a base portion of the wiper blade and a circular enlarged portion at the lip tip of the wiper blade as in the second invention, the extruded material which is extremely easily deformed immediately after extrusion molding is removed from the base portion. Since the extruded material is placed on a conveyor and conveyed on each side of the bulge and vulcanized, there is no problem such as straining and deforming the extruded material, and furthermore, as in the third invention, the wiper blade After extruding an extruded material made of raw rubber having a bulge at the tip of the lip into an upright state with the base of the wiper blade at the bottom and the bulge at the top, the extruded material is supported on a conveyor by the base. Since the enlarged part is guided by a guide and vulcanized while being conveyed, the extruded material does not tend to one side due to gravity, so it always maintains the correct posture and maintains continuity. 2. According to the third invention, it is possible to prevent the lip portion from being vulcanized in a curved or bent state during vulcanization molding, and to obtain a wiper blade with excellent resistance performance.

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

図面で第１図は本発明方法を実施するための１例を示す
装置の側面図、第２図はその押出成形機の１部の拡大載
断面図、第３図は第１図の■−■線截線面断面図４図は
他の実施例の側面図、第５図はその押出成形機の１部の
拡大載断面図、第６図は第４図のＶＩ−ＶＩ線截断面図
、第７図は切断機の要部の斜面図である。 １・・・押出成形機、２・・・一次加硫機、計・・二次
加硫機、４・・・切断機。In the drawings, Fig. 1 is a side view of an apparatus showing one example for carrying out the method of the present invention, Fig. 2 is an enlarged cross-sectional view of a part of the extrusion molding machine, and Fig. 3 is a cross-sectional view of Fig. 1. ■Cross-sectional view along the line Figure 4 is a side view of another embodiment, Figure 5 is an enlarged cross-sectional view of a part of the extrusion molding machine, and Figure 6 is a cross-sectional view taken along the line VI-VI in Figure 4. , FIG. 7 is a perspective view of the main parts of the cutting machine. 1... Extrusion molding machine, 2... Primary vulcanizer, Total... Secondary vulcanizer, 4... Cutting machine.

Claims (1)

【特許請求の範囲】 １ ワイパーブレードのリップ先端に膨大部を有するも
のに押出成形して形成した合成ゴム又は生ゴムから成る
押出成形材を次いで加硫した後、該膨大部の切除並びに
長さ方向の切断を行うことを特徴とするワイパーブレー
ドの製造方法。 ２ ワイパーブレードのリップ先端にワイパーブレード
の基部と岡山の膨大部を有する生ゴム、合成ゴムからな
る押出成形材を基部と膨大部が横方向に並ぶととく押出
成形し、該押出成形材を、基部と膨大部との各側面でコ
ンベヤ上に載置して搬送しつ＼加硫した後膣膨大部の切
除並びに長さ方向の切断を行うことを特徴とするワイパ
ーブレードの製造方法。 ３ ワイパーブレードのリップ先端に膨大部を有する合
成ゴム、生ゴムからなる押出成形材をワイパーブレード
の基部が下となり膨大部が上となる起立状態に押出成形
した後読押出成形材を該基部で’ｌｌｌ１送コンベヤ上
に支承させると共に膨大部をガイドに案内させて搬送し
つ＼加硫成形した後膨大部の切除並びに長さ方向の切断
を行うことを特徴とするワイパーブレードの製造方法。[Scope of Claims] 1. After extrusion molding an extrusion molded material made of synthetic rubber or raw rubber into a wiper blade having an enlarged portion at the tip of its lip, the extruded material made of synthetic rubber or raw rubber is then vulcanized, and then the enlarged portion is removed and the lengthwise direction of the wiper blade is vulcanized. A method of manufacturing a wiper blade, the method comprising cutting the wiper blade. 2. An extruded material made of raw rubber or synthetic rubber having the base of the wiper blade and the enlarged part of Okayama is extruded onto the lip tip of the wiper blade so that the base and the enlarged part are lined up in the horizontal direction, and the extruded material is attached to the base. A method for manufacturing a wiper blade, which comprises placing the wiper blade on a conveyor on each side of the ampulla and vulcanizing the wiper blade, and then cutting the ampulla in the lengthwise direction. 3 An extruded molded material made of synthetic rubber or raw rubber having a bulge at the tip of the lip of the wiper blade is extruded into an upright state with the base of the wiper blade facing down and the bulge facing up. A method for manufacturing a wiper blade, which comprises supporting the wiper blade on a conveyor, transporting the wiper blade with the enlarged part guided by a guide, vulcanizing and molding the wiper blade, and then cutting the enlarged part and cutting the wiper blade in the length direction.
JP57027155A 1982-02-22 1982-02-22 Wiper blade manufacturing method Expired JPS5923990B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57027155A JPS5923990B2 (en) 1982-02-22 1982-02-22 Wiper blade manufacturing method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57027155A JPS5923990B2 (en) 1982-02-22 1982-02-22 Wiper blade manufacturing method

Publications (2)

Publication Number Publication Date
JPS58145433A JPS58145433A (en) 1983-08-30
JPS5923990B2 true JPS5923990B2 (en) 1984-06-06

Family

ID=12213158

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57027155A Expired JPS5923990B2 (en) 1982-02-22 1982-02-22 Wiper blade manufacturing method

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Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4904434A (en) * 1988-10-28 1990-02-27 Jmk International, Inc. Method of forming an improved wiper blade
US4981637A (en) * 1988-10-28 1991-01-01 Jmk International, Inc. Method of forming an improved wiper blade
DE102006059932A1 (en) * 2006-12-19 2008-06-26 Robert Bosch Gmbh Method and device for producing a strand-shaped extrudate
KR101296994B1 (en) * 2011-12-21 2013-08-14 김태원 Composition of protective cover for coated LIP part (rubber) located on lower blade of wiper and method of manufacturing same

Also Published As

Publication number Publication date
JPS58145433A (en) 1983-08-30

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