JPS643720Y2 - - Google Patents
Info
- Publication number
- JPS643720Y2 JPS643720Y2 JP1983172905U JP17290583U JPS643720Y2 JP S643720 Y2 JPS643720 Y2 JP S643720Y2 JP 1983172905 U JP1983172905 U JP 1983172905U JP 17290583 U JP17290583 U JP 17290583U JP S643720 Y2 JPS643720 Y2 JP S643720Y2
- Authority
- JP
- Japan
- Prior art keywords
- rubber
- wiper blade
- lip
- blade rubber
- tip
- 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
Links
- 229920001971 elastomer Polymers 0.000 claims description 107
- 239000005060 rubber Substances 0.000 claims description 107
- 229920001875 Ebonite Polymers 0.000 claims description 26
- 239000011521 glass Substances 0.000 description 13
- 239000000463 material Substances 0.000 description 12
- 238000001125 extrusion Methods 0.000 description 7
- 238000004073 vulcanization Methods 0.000 description 6
- 244000043261 Hevea brasiliensis Species 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 229920003052 natural elastomer Polymers 0.000 description 5
- 229920001194 natural rubber Polymers 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 230000003712 anti-aging effect Effects 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 239000003086 colorant Substances 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 239000006057 Non-nutritive feed additive Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000006229 carbon black Substances 0.000 description 2
- 238000005660 chlorination reaction Methods 0.000 description 2
- 239000011247 coating layer Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 229920003048 styrene butadiene rubber Polymers 0.000 description 2
- 239000011593 sulfur Substances 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 239000004636 vulcanized rubber Substances 0.000 description 2
- 235000014692 zinc oxide Nutrition 0.000 description 2
- 239000011787 zinc oxide Substances 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 229920002943 EPDM rubber Polymers 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 229920006311 Urethane elastomer Polymers 0.000 description 1
- QAFDKYYSTRGTLH-UHFFFAOYSA-L [Na+].[Na+].[O-]Cl=O.[O-]Cl=O Chemical compound [Na+].[Na+].[O-]Cl=O.[O-]Cl=O QAFDKYYSTRGTLH-UHFFFAOYSA-L 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010070 extrusion (rubber) Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000011256 inorganic filler Substances 0.000 description 1
- 229910003475 inorganic filler Inorganic materials 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229920001084 poly(chloroprene) Polymers 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
Landscapes
- Extrusion Moulding Of Plastics Or The Like (AREA)
Description
【考案の詳細な説明】
〔技術分野〕
本考案は安定して摺動抵抗の小さいワイパーブ
レードゴムに関するものである。[Detailed Description of the Invention] [Technical Field] The present invention relates to a wiper blade rubber that is stable and has low sliding resistance.
ワイパーブレードゴムは一体的に形成された肉
厚の基部と該基部とネツクを介して連続する断面
略三角形の揺動部と該揺動部の先端部に設けられ
た薄い板状のリツプ部とより成る長尺状でワイパ
ーの拭払子として用いられている。このワイパー
ブレードゴムは自動車のフロントガラス等のガラ
ス面に沿つて摺動し、その摺動によりガラス面上
の水滴を取り除く働きをするものである。 The wiper blade rubber has an integrally formed thick base, a swinging part with a substantially triangular cross section that is continuous with the base through a neck, and a thin plate-shaped lip part provided at the tip of the swinging part. It has a long shape and is used as a wiper blade. This wiper blade rubber slides along a glass surface such as an automobile windshield, and its sliding action serves to remove water droplets from the glass surface.
ワイパーブレードゴムはゴムで形成されている
ために、柔軟性を有するという利点がある反面、
摺動抵抗が大きいという欠点がある。 Since wiper blade rubber is made of rubber, it has the advantage of being flexible, but on the other hand,
It has the disadvantage of high sliding resistance.
従来ワイパーブレードゴムの摺動抵抗をさげる
ために、例えば、ワイパーブレードゴムの表面を
塩素化して表面を硬くする方法、あるいはワイパ
ーブレードゴムの表面に二流化モリブデン粉末等
の活性微粉末を含む表面層を被覆して形成する方
法が知られている。しかしながら塩素化する方法
は摺動抵抗の初期低下の効果は高いが耐摩耗性が
不十分のためしばらくすると摩擦係数が高くな
る。又、活性微粉末を含む被覆層を形成する方法
は、短期間の使用で被覆層が剥離し、耐久性がな
いという問題があつた。
Conventionally, in order to reduce the sliding resistance of wiper blade rubber, for example, the surface of the wiper blade rubber was chlorinated to make the surface hard, or the wiper blade rubber surface was coated with a surface layer containing active fine powder such as disulsified molybdenum powder. There is a known method of forming the material by coating it. However, although the chlorination method is highly effective in initially reducing sliding resistance, the wear resistance is insufficient and the friction coefficient increases after a while. Further, the method of forming a coating layer containing active fine powder has a problem in that the coating layer peels off after a short period of use and is not durable.
本考案は上記問題点を克服するもので、耐摩耗
性が良く、かつ摺動抵抗が小さいワイパーブレー
ドゴムを提供することを目的とする。
The present invention overcomes the above problems and aims to provide a wiper blade rubber that has good wear resistance and low sliding resistance.
本考案のワイパーブレードゴムは、ワイパーブ
レードゴムを構成する主として基部及び揺動部を
硬度50〜70度の柔軟性ゴムで、ワイパーブレード
ゴムの主としてリツプ部を該柔軟性ゴムより少な
くとも硬度が10度高い硬質ゴムで一体的に押し出
し成形後、加硫された構成となつていることを特
徴とする。ここでゴム硬度とはJISK6301に規定
する硬度をいう。
In the wiper blade rubber of the present invention, the base and swinging parts of the wiper blade rubber are made of flexible rubber with a hardness of 50 to 70 degrees, and the lip part of the wiper blade rubber is made of flexible rubber with a hardness of at least 10 degrees less than the flexible rubber. It is characterized by being made of high-quality hard rubber that is integrally extruded and then vulcanized. Rubber hardness here refers to the hardness specified in JISK6301.
本考案のワイパーブレードゴムは、ガラス面と
摺動するリツプ部を摺動抵抗が小さくかつ耐摩耗
性のすぐれた硬質ゴムで形成し、柔軟性を必要と
する基部及び揺動部を柔軟性ゴムで一体的に押出
して形成したものである。従つて、本考案のワイ
パーブレードゴムはワイパーブレードゴムに必要
とされる柔軟性を有するとともにガラス面と摺接
するリツプ部は硬質ゴムで形成されているため
に、摩擦抵抗が小さくかつ耐摩耗性に優れてい
る。 In the wiper blade rubber of the present invention, the lip part that slides on the glass surface is made of hard rubber with low sliding resistance and excellent wear resistance, and the base part and swing part, which require flexibility, are made of flexible rubber. It is integrally extruded and formed. Therefore, the wiper blade rubber of the present invention has the flexibility required for wiper blade rubber, and since the lip part that makes sliding contact with the glass surface is made of hard rubber, it has low frictional resistance and high wear resistance. Are better.
本考案のワイパーブレードゴムの外観形状は、
従来のワイパーブレードゴムの外観形状と基本的
に同一である。即ち、本考案のワイパーブレード
ゴムは基部と揺動部とリツプ部とで構成されてい
る。基部とはワイパーブレードゴムの長手方向の
剛性を得るため、ヨークに保持される鋼片が取り
付けられる部分をいう。この基部はその両側面に
鋼片と係合するための溝あるいは突条を有する棒
状である。揺動部は断面略三角形状で、上記基部
とは薄肉のネツク部を介して連続している。尚、
ネツク部は断面略三角形の底辺の中央部に設けら
れている。この揺動部は、ガラス面を左右に往復
摺動する際に揺動する部分で、ネツク部で右ある
いは左に曲り、基部に対して揺動部が左右に揺動
する。リツプ部は揺動部の断面略三角形の先端部
に設けられている薄い板状の突出した部分をい
う。
The external shape of the wiper blade rubber of this invention is as follows:
The external shape is basically the same as that of conventional wiper blade rubber. That is, the wiper blade rubber of the present invention is composed of a base portion, a swinging portion, and a lip portion. The base refers to the part to which the steel piece held by the yoke is attached in order to obtain longitudinal rigidity of the wiper blade rubber. This base is rod-shaped and has grooves or ridges on both sides thereof for engaging the steel piece. The swinging portion has a substantially triangular cross section and is continuous with the base portion via a thin neck portion. still,
The neck portion is provided at the center of the base of the substantially triangular cross section. This swinging part is a part that swings when sliding back and forth on the glass surface, bends to the right or left at the neck part, and swings left and right with respect to the base. The lip portion is a thin plate-shaped protruding portion provided at the tip of the swinging portion, which has a substantially triangular cross section.
主として基部および揺動部は硬度50〜70度の柔
軟性ゴムで形成されている。柔軟性ゴムとして
は、天然ゴム及び天然ゴムとクロロプレンゴムあ
るいは天然ゴムとSBR等の混合ゴムおよびSBR、
EPDM、MBR、ウレタンゴム等の合成ゴムが使
用される。尚、柔軟性ゴムの硬度は基本的には、
従来のワイパーブレードゴムのゴム硬度と同一の
ものである。 The base and the swinging part are mainly made of flexible rubber with a hardness of 50 to 70 degrees. Flexible rubber includes natural rubber, mixed rubber such as natural rubber and chloroprene rubber, or natural rubber and SBR, and SBR.
Synthetic rubbers such as EPDM, MBR, and urethane rubber are used. The hardness of flexible rubber is basically as follows:
This is the same as the rubber hardness of conventional wiper blade rubber.
主としてリツプ部を形成する硬質ゴムは、上記
柔軟性ゴムの硬度に対して10度高い。この硬質ゴ
ムは、カーボンブラツク等の固体充填材を多く配
合したり架橋程度を高くすることにより達成する
ことができる。また、カーボンブラツク以外の無
機の充填剤、滑剤等を配合してゴム硬度を高くす
ることができる。さらには、ゴム自体の硬度が高
いウレタン等の硬質のゴムを用いてゴム硬度を高
くしてもよい。なお、硬質ゴムは、リツプ部の先
端の両側部のみに設けるのが最も好ましい。この
場合にリツプ部先端の中央部には柔軟性ゴムが挟
持され、リツプ部先端の表面中央には柔軟性ゴム
が表出する。リツプ部両側部の硬質ゴムのそれぞ
れの厚さは、リツプ部の厚さの1/10〜1/3程度が
よい。また、柔軟性ゴムと硬質ゴムとの境界部を
凹凸状とし、機械的に一体性を確保できるように
してもよい。特に柔軟性ゴムと硬質ゴムの接合性
が悪い場合には有効である。 The hard rubber that mainly forms the lip portion has a hardness 10 degrees higher than that of the flexible rubber. This hard rubber can be achieved by incorporating a large amount of solid filler such as carbon black or by increasing the degree of crosslinking. Further, inorganic fillers, lubricants, etc. other than carbon black can be added to increase the hardness of the rubber. Furthermore, the hardness of the rubber may be increased by using hard rubber such as urethane, which itself has high hardness. The hard rubber is most preferably provided only on both sides of the tip of the lip. In this case, flexible rubber is held at the center of the tip of the lip, and the flexible rubber is exposed at the center of the surface of the tip of the lip. The thickness of each hard rubber on both sides of the lip is preferably about 1/10 to 1/3 of the thickness of the lip. Further, the boundary between the flexible rubber and the hard rubber may be made uneven to ensure mechanical integrity. This is particularly effective when bonding between flexible rubber and hard rubber is poor.
本考案のワイパーブレードゴムは押出成形で製
造される。この製造方法は、まず柔軟性ゴムおよ
び硬質ゴムとなるそれぞれの未加硫状態のゴムを
多色（２色）押出成形し、断面一定の長い成形素
材を作る。この成形素材は２個のワイパーブレー
ドゴムがリツプ部先端で一体的に接合した断面一
定の薄板状の長尺体である。この押出された成形
素材を加硫温度に加熱し、その後リツプ部を形成
する中央に刃物を入れて切り開き、２個のワイパ
ーブレードゴムとするものである。 The wiper blade rubber of the present invention is manufactured by extrusion molding. In this manufacturing method, first, unvulcanized rubbers, which will become flexible rubber and hard rubber, are extruded in multiple colors (two colors) to create a long molded material with a constant cross section. This molded material is a thin plate-like elongated body with a constant cross section, in which two wiper blade rubbers are integrally joined at the tip of the lip portion. This extruded molded material is heated to a vulcanization temperature, and then a knife is inserted into the center of the lip to create two wiper blade rubber pieces.
押出成形そのものは、通常のゴムの多色押出成
形方法をそのまま採用することができる。しか
し、ワイパーブレードゴムのリツプ部の厚さは
0.5〜1.0mmと極めて薄いために、高い押出成形技
術を必要とする。本考案者の属する技術部門で
は、厚さ0.1mm程度の多色ゴム押出を安定して製
造することができる。 For the extrusion molding itself, a conventional multi-color extrusion molding method for rubber can be used as is. However, the thickness of the wiper blade rubber lip is
Because it is extremely thin at 0.5 to 1.0 mm, it requires advanced extrusion molding technology. The technical department to which the present inventor belongs is able to stably produce multicolored rubber extrusions with a thickness of approximately 0.1 mm.
本考案のワイパーブレードゴムは、柔軟性を必
要とするワイパーブレードゴムの主として基部お
よび揺動部が柔軟性の高い柔軟性ゴムで構成され
ており、低摩擦係数および耐摩耗性等の優れた摺
動特性を必要とする主としてリツプ部が硬質ゴム
で構成され、両者は一体的に多色押出により成形
加硫されている。したがつて、本考案のワイパー
ブレードゴムは、ワイパーブレードゴムが必要と
する柔軟性および摺動特性を備えている。
In the wiper blade rubber of the present invention, the base and swinging parts of the wiper blade rubber, which require flexibility, are made of highly flexible flexible rubber, and the wiper blade rubber has excellent sliding properties such as a low coefficient of friction and abrasion resistance. The lip part, which requires dynamic properties, is mainly made of hard rubber, and both parts are integrally molded and vulcanized by multicolor extrusion. Therefore, the wiper blade rubber of the present invention has the flexibility and sliding properties that wiper blade rubber requires.
また、柔軟性ゴムと硬質ゴムとが未加硫状態で
一体的に押出成形され、同時に加硫されているた
めに一体性が高く、両者が分離する等の恐れはな
い。 Further, since the flexible rubber and the hard rubber are integrally extruded in an unvulcanized state and vulcanized at the same time, their integrity is high and there is no fear that the two will separate.
硬質ゴムをリツプ部先端の両側部に設け、該両
側部の間に介在するリツプ部先端中央部を柔軟性
ゴムとし、リツプ部先端に柔軟性ゴムが表出する
構成とした場合には、リツプ部先端の中央部に摩
擦係数の大きい柔軟性ゴムが表出する。このため
にワイパーブレードゴムがワイパーに組込まれて
ガラス面上を往復運動するときに、摺動方向が変
化する点で、ワイパーブレードゴムのリツプ部先
端とガラス面とが接触し、この時に摩擦係数の高
いリツプ部先端中央部がガラス面と接触して高い
摩擦抵抗がえられる。このため、ワイパーが反転
する時に、一時的にリツプ部がガラス面に固定さ
れた状態となり、ワイパーブレードゴムの基部が
ワイパーに付勢されて逆方向に反転する。そし
て、反転した状態で基部が揺動部を引張り、さら
に揺動部先端のリツプ部が追従するようになる。
したがつて、常にリツプはワイパーの基部に追従
し、ガラス面は常にリツプ部の先端面と側面との
角部と摺接して水滴を排除する。したがつて、よ
り確実にガラス面上より水滴を除去することがで
きる。 If hard rubber is provided on both sides of the tip of the lip, and the central part of the tip of the lip interposed between the two sides is made of flexible rubber, and the flexible rubber is exposed at the tip of the lip, the lip Flexible rubber with a high coefficient of friction is exposed at the center of the tip. For this reason, when the wiper blade rubber is incorporated into the wiper and moves back and forth on the glass surface, the tip of the lip of the wiper blade rubber comes into contact with the glass surface at the point where the sliding direction changes, and at this point the friction coefficient The center of the tip of the high lip comes into contact with the glass surface, providing high frictional resistance. Therefore, when the wiper is reversed, the lip portion is temporarily fixed to the glass surface, and the base of the wiper blade rubber is urged by the wiper and reversed in the opposite direction. Then, in the inverted state, the base part pulls the swinging part, and the lip part at the tip of the swinging part follows.
Therefore, the lip always follows the base of the wiper, and the glass surface always comes into sliding contact with the corner between the tip and side surfaces of the lip to remove water droplets. Therefore, water droplets can be removed more reliably from the glass surface.
〔実施例 １〕
本考案の第１実施例のワイパーブレードゴムの
断面を第１図に示す。このワイパーブレードゴム
は断面多角形の基部１と、ネツク部２と、断面略
三角形状の揺動部３と、該揺動部３の先端にもう
けられたリツプ部４とで構成されている。このワ
イパーブレードゴムの基部１、ネツク部２、揺動
部３およびリツプ部４の上端は硬度60度の柔軟性
ゴムＡで、リツプ部４の下端部は硬度85度の硬質
ゴムで形成されている。ちなみにこのワイパーブ
レードゴムの高さは約11.5mm、幅は約７mm、リツ
プ部４の厚さは0.75mm、高さは1.9mmである。こ
のワイパーブレードゴムは次の方法で製造したも
のである。[Example 1] FIG. 1 shows a cross section of a wiper blade rubber according to a first example of the present invention. This wiper blade rubber is composed of a base portion 1 having a polygonal cross section, a neck portion 2, a swinging portion 3 having a substantially triangular cross section, and a lip portion 4 provided at the tip of the swinging portion 3. The upper ends of the base 1, neck part 2, swinging part 3, and lip part 4 of this wiper blade rubber are made of flexible rubber A with a hardness of 60 degrees, and the lower end of the lip part 4 is made of hard rubber with a hardness of 85 degrees. There is. By the way, the height of this wiper blade rubber is approximately 11.5 mm, the width is approximately 7 mm, the thickness of the lip portion 4 is 0.75 mm, and the height is 1.9 mm. This wiper blade rubber was manufactured by the following method.
天然ゴム100重量部（以下、部は重量部を意味
する）（約0.3部の釈解剤含有）、FEFカーボン30
部、粉末イオウ3.5部、加工助剤２部、亜鉛華５
部、老化防止剤3.2部、加硫促進剤0.7部である未
加硫ゴム配合物をバンバリーミキサーを用いて十
分に混合し、柔軟性ゴム素材を調製した。硬質ゴ
ムとしては、天然ゴム100重量部（以下、部は重
量部を意味する）（約0.3部の釈解剤含有）、FEF
カーボン65部、粉末イオウ3.5部、加工助剤６部、
亜鉛華５部、老化防止剤類3.5部、加硫促進剤１
部である未加硫ゴム配合物を同じくバンバリミキ
サーを用いて十分に混合して調製した。 100 parts by weight of natural rubber (hereinafter, parts mean parts by weight) (contains about 0.3 parts of interpreter), FEF carbon 30
part, powdered sulfur 3.5 parts, processing aid 2 parts, zinc white 5 parts
A flexible rubber material was prepared by thoroughly mixing an unvulcanized rubber compound containing 3.2 parts of anti-aging agent, 3.2 parts of anti-aging agent, and 0.7 parts of vulcanization accelerator using a Banbury mixer. As hard rubber, 100 parts by weight of natural rubber (hereinafter, parts mean parts by weight) (contains about 0.3 parts of interpreter), FEF
65 parts of carbon, 3.5 parts of powdered sulfur, 6 parts of processing aid,
Zinc white 5 parts, anti-aging agents 3.5 parts, vulcanization accelerator 1
The unvulcanized rubber compound was prepared by thoroughly mixing it using the same Banbury mixer.
次に、上記した２種類のゴム素材を基部および
揺動部を成形するためのスクリユー径35mmの押出
機と、リツプ部を成形するためのスクリユウ径20
mmの押出機を用いてヘツド温度70℃の押出条件で
２色押出成形して第２図に示す断面形状の押出成
形材を得た。この押出成形素材は、２個のワイパ
ーブレードゴムをリツプ部先端で結合した形状の
もので、未加硫の硬質ゴムB′を中央に配置しそ
の両側に未加硫の柔軟性ゴムA′配置せしめたも
のである。 Next, we used an extruder with a screw diameter of 35 mm to mold the two types of rubber materials mentioned above into the base and the swinging part, and an extruder with a screw diameter of 20 mm to mold the lip part.
Two-color extrusion molding was carried out using an extruder with a diameter of 2 mm at a head temperature of 70° C. to obtain an extruded material having the cross-sectional shape shown in FIG. This extrusion molded material has a shape in which two wiper blade rubbers are joined at the tip of the lip, with unvulcanized hard rubber B' placed in the center and unvulcanized flexible rubber A' placed on both sides. It was forced upon me.
次にこの押出成形素材を溶融塩加硫槽を用い、
180℃５分間の条件で加硫し加硫ゴムとした。そ
の後、鋭い刃物で加硫ゴムの中央に沿つて切断
し、第１図にその断面を示す本考案のワイパーブ
レードゴムを製造した。 Next, this extruded material is cured using a molten salt vulcanization tank.
Vulcanized rubber was obtained by vulcanization at 180°C for 5 minutes. Thereafter, the vulcanized rubber was cut along the center with a sharp knife to produce a wiper blade rubber of the present invention, the cross section of which is shown in FIG.
なお、比較例として実施例１に示したのと同じ
未加硫の柔軟性ゴムA′のみを金型内で加圧加熱
してワイパーブレードゴムを製造した。その後、
このワイパーブレードゴムの側面を水100部、ジ
亜塩素酸ナトリウム（有効塩素５％）３部、潮酸
（35重量％）１部よりなる水溶液中に10分間浸漬
して塩素化し、第３図にその断面を示すワイパー
ブレードゴムを製造した。第３図中符号Ｃは塩素
化されたゴム層を示す。 As a comparative example, a wiper blade rubber was produced by pressurizing and heating only the same unvulcanized flexible rubber A' as shown in Example 1 in a mold. after that,
The side surface of this wiper blade rubber was chlorinated by immersing it in an aqueous solution consisting of 100 parts of water, 3 parts of sodium dichlorite (5% available chlorine), and 1 part of tidal acid (35% by weight) for 10 minutes, as shown in Figure 3. A wiper blade rubber, the cross section of which is shown in Figure 2, was manufactured. The symbol C in FIG. 3 indicates a chlorinated rubber layer.
本考案の実施例のワイパーブレードゴムと比較
例のワイパーブレードゴムとの摺動特性を比較す
るため両者の摩擦係数を測定した。この試験は第
４図に示すようにワイパーブレードゴムを試験機
に強着した状態で、Ｗ＝20gf／cm×10cmの力を加
えながら冷水を簡潔的に流し続けるガラス上で50
cmの距離を35回／分の速度で往復運動させ、その
ときの摩擦係数（μ）を測定するものである。な
お、ここで摩擦係数μは引張荷重(F)を荷重（Ｗ）
で割つた値である。この繰返し往復運動を50万回
行ない、繰返し回数と摩擦係数の結果を測定し
た。 In order to compare the sliding characteristics of the wiper blade rubber of the example of the present invention and the wiper blade rubber of a comparative example, the friction coefficients of both were measured. As shown in Figure 4, this test was conducted with the wiper blade rubber firmly attached to the test machine, and with a force of W = 20gf/cm x 10cm applied, cold water was continuously flowed briefly on the glass for 50 minutes.
The friction coefficient (μ) is measured by reciprocating a distance of cm at a speed of 35 times/minute. In addition, here, the friction coefficient μ is the tensile load (F) and the load (W).
It is the value divided by . This repeated reciprocating motion was performed 500,000 times, and the results of the number of repetitions and the coefficient of friction were measured.
得られた結果を第５図の線図に示す。第５図上
白丸は本実施例のワイパーブレードゴムの測定結
果を、黒丸は従来のワイパーブレードゴムの測定
結果を示す。第５図より本実施例のワイパーブレ
ードゴムは摺動回数が50万回近くに達しても、そ
の摩擦係数は常に1.4前後で初期の摩擦係数と変
化していない。しかし比較例の従来のワイパーブ
レードゴムは初期の摩擦係数は0.8程度と小さい
が、摺動回数が増加するにつれ摩擦係数が大きく
なり、40万回においては摩擦係数が1.8程度まで
高くなつた。この結果より、本考案のワイパーブ
レードゴムは優れた摺動特性を有するのが明らか
になつた。 The results obtained are shown in the diagram of FIG. The white circles in the upper part of FIG. 5 show the measurement results for the wiper blade rubber of this example, and the black circles show the measurement results for the conventional wiper blade rubber. As can be seen from FIG. 5, even after the wiper blade rubber of this embodiment has been slid nearly 500,000 times, its friction coefficient remains around 1.4, which remains unchanged from the initial friction coefficient. However, the conventional wiper blade rubber of the comparative example had a small initial friction coefficient of about 0.8, but as the number of sliding movements increased, the friction coefficient increased, and at 400,000 times, the friction coefficient rose to about 1.8. These results revealed that the wiper blade rubber of the present invention has excellent sliding properties.
〔実施例 ２〕
本考案の第２実施例のワイパーブレードゴムの
断面を第６図に示す。このワイパーブレードゴム
では、リツプ部４の先端部の両側部に硬質ゴムＢ
を配置したものである。このワイパーブレードゴ
ムは実施例１で用いた柔軟性ゴム素材と硬質ゴム
素材を用い、硬質ゴム素材の配置部分をリツプ部
先端の両側部のみに限るように２色押出成形し、
実施例１と同様に加硫して製造したものである。
このワイパーブレードゴムは硬質ゴムＢがリツプ
部４の先端両側部に約0.17mmの厚さに一体的に配
置され、リツプ部４先端の中央には基部１と同じ
柔軟性ゴムＡが挟持表出しているものである。[Embodiment 2] FIG. 6 shows a cross section of a wiper blade rubber according to a second embodiment of the present invention. In this wiper blade rubber, hard rubber B is attached to both sides of the tip of the lip portion 4.
is arranged. This wiper blade rubber uses the flexible rubber material and hard rubber material used in Example 1, and is extruded in two colors so that the hard rubber material is only placed on both sides of the tip of the lip.
It was manufactured by vulcanization in the same manner as in Example 1.
In this wiper blade rubber, a hard rubber B with a thickness of about 0.17 mm is integrally arranged on both sides of the tip of the lip part 4, and a flexible rubber A, which is the same as the base part 1, is sandwiched and exposed in the center of the tip of the lip part 4. It is something that
このワイパーブレードゴムは硬質ゴムＢと柔軟
性ゴムＡが一体的に押出成形加硫されたものであ
り、両者の一体性が高く両者の剥離の心配がな
い。また、従来のワイパーブレードゴムの塩素化
して形成した塩素化層の厚さは0.01mmと非常に薄
いのに対して、本実施例のワイパーブレードゴム
の滑性ゴムＢの厚さが0.17mmと非常に厚いために
硬質ゴム層が摺動により摩耗して消失する恐れが
ほとんどない。さらにリツプ部４の先端の中央に
柔軟性ゴムＡが表出しているためにワイパーの往
復運動時の方向転換時において、基部１に対して
揺動部３が確実に揺動し、リツプ部４は確実に基
部１に従動してガラス面上を摺動することができ
る。 This wiper blade rubber is made by integrally extruding and vulcanizing hard rubber B and flexible rubber A, and the integrity of the two is high, so there is no fear that they will peel off. In addition, the thickness of the chlorinated layer formed by chlorination of conventional wiper blade rubber is very thin at 0.01 mm, whereas the thickness of the slippery rubber B of the wiper blade rubber of this example is 0.17 mm. Because it is so thick, there is little risk that the hard rubber layer will wear out and disappear due to sliding. Furthermore, since the flexible rubber A is exposed at the center of the tip of the lip portion 4, the swinging portion 3 reliably swings with respect to the base portion 1 when the wiper changes direction during reciprocating motion. can reliably follow the base 1 and slide on the glass surface.
第１図は本考案の実施例１のワイパーブレード
ゴムの断面図、第２図は第１図のワイパーブレー
ドゴムを製造するために成形された未加硫ゴムの
押出成形素材の断面図、第３図は比較例として用
いたワイパーブレードゴムの断面図、第４図はワ
イパーブレードゴムの試験状態を示す要部断面
図、第５図は実施例１のワイパーブレードゴムと
比較例のワイパーブレードゴムの摺動回数と摩擦
係数の関係を示す線図、第６図は実施例２のワイ
パーブレードゴムの断面図である。
１……基部、２……ネツク部、３……揺動部、
４……リツプ部、Ａ……柔軟性ゴム、Ｂ……硬質
ゴム。
FIG. 1 is a cross-sectional view of the wiper blade rubber of Example 1 of the present invention, FIG. Figure 3 is a cross-sectional view of the wiper blade rubber used as a comparative example, Figure 4 is a cross-sectional view of the main part showing the test conditions of the wiper blade rubber, and Figure 5 is the wiper blade rubber of Example 1 and the wiper blade rubber of the comparative example. FIG. 6 is a cross-sectional view of the wiper blade rubber of Example 2. 1... Base, 2... Network part, 3... Swinging part,
4...Rip portion, A...Flexible rubber, B...Hard rubber.
Claims (1)
ネツクを介して連続する断面略三角形の揺動部
と、該揺動部の先端に設けられた薄い板状のリ
ツプ部とよりなる長尺状のワイパーブレードゴ
ムにおいて、 主として上記基部および揺動部は硬度50〜70
度の柔軟性ゴムで、主として上記リツプ部は該
柔軟性ゴムより少なくとも硬度が10度高い硬質
ゴムで一体的に押出成形後加硫された構成とな
つていることを特徴とするワイパーブレードゴ
ム。 (2) リツプ部先端の両側部に硬質ゴムが配置さ
れ、リツプ部先端の中央部に柔軟性ゴムが挟持
されて表出する構成をもつ実用新案登録請求の
範囲第１項記載のワイパーブレードゴム。[Claims for Utility Model Registration] (1) An integrally formed thick base, a swinging part with a substantially triangular cross section that is continuous with the base via a neck, and a swinging part provided at the tip of the swinging part. In a long wiper blade rubber consisting of a thin plate-shaped lip part, the base part and the swing part mainly have a hardness of 50 to 70.
1. A wiper blade rubber, characterized in that the lip portion is integrally extruded with a hard rubber having a hardness at least 10 degrees higher than the flexible rubber and then vulcanized. (2) The wiper blade rubber according to claim 1, which has a configuration in which hard rubber is arranged on both sides of the tip of the lip, and flexible rubber is sandwiched and exposed at the center of the tip of the lip. .
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17290583U JPS6081057U (en) | 1983-11-07 | 1983-11-07 | wiper blade rubber |
| CA000467110A CA1231209A (en) | 1983-11-07 | 1984-11-06 | Wiper blade rubber |
| US06/668,859 US4622712A (en) | 1983-11-07 | 1984-11-06 | Wiper blade rubber |
| DE3440677A DE3440677C2 (en) | 1983-11-07 | 1984-11-07 | Rubber wiper blade |
| KR2019870001164U KR880003346Y1 (en) | 1983-11-07 | 1987-02-04 | Wiper blade rubber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17290583U JPS6081057U (en) | 1983-11-07 | 1983-11-07 | wiper blade rubber |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6081057U JPS6081057U (en) | 1985-06-05 |
| JPS643720Y2 true JPS643720Y2 (en) | 1989-02-01 |
Family
ID=30376788
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17290583U Granted JPS6081057U (en) | 1983-11-07 | 1983-11-07 | wiper blade rubber |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6081057U (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6031398B2 (en) * | 2013-04-08 | 2016-11-24 | アスモ株式会社 | Manufacturing method of blade rubber |
| JP6447355B2 (en) * | 2014-06-20 | 2019-01-09 | 株式会社デンソー | Blade rubber manufacturing method and blade rubber |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51147827A (en) * | 1975-06-12 | 1976-12-18 | Iwao Ooya | Wiper blade apparatus |
| JPS5639345B2 (en) * | 1973-05-22 | 1981-09-12 | ||
| JPS5730646A (en) * | 1980-07-31 | 1982-02-18 | Toyoda Gosei Co Ltd | Wiper blade |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49123728U (en) * | 1973-02-20 | 1974-10-23 | ||
| JPS5566815U (en) * | 1978-10-31 | 1980-05-08 | ||
| JPS5639345U (en) * | 1979-08-31 | 1981-04-13 |
-
1983
- 1983-11-07 JP JP17290583U patent/JPS6081057U/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5639345B2 (en) * | 1973-05-22 | 1981-09-12 | ||
| JPS51147827A (en) * | 1975-06-12 | 1976-12-18 | Iwao Ooya | Wiper blade apparatus |
| JPS5730646A (en) * | 1980-07-31 | 1982-02-18 | Toyoda Gosei Co Ltd | Wiper blade |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6081057U (en) | 1985-06-05 |
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