JPH03183533A - Rubber molding - Google Patents
Rubber moldingInfo
- Publication number
- JPH03183533A JPH03183533A JP31822990A JP31822990A JPH03183533A JP H03183533 A JPH03183533 A JP H03183533A JP 31822990 A JP31822990 A JP 31822990A JP 31822990 A JP31822990 A JP 31822990A JP H03183533 A JPH03183533 A JP H03183533A
- Authority
- JP
- Japan
- Prior art keywords
- glass
- resistance
- polyvinyl chloride
- polyblend
- pvc
- 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.)
- Pending
Links
- 238000010068 moulding (rubber) Methods 0.000 title abstract 2
- 239000011521 glass Substances 0.000 claims abstract description 48
- 229920000915 polyvinyl chloride Polymers 0.000 claims abstract description 17
- 239000004800 polyvinyl chloride Substances 0.000 claims abstract description 17
- 229920001971 elastomer Polymers 0.000 claims description 23
- 229920000459 Nitrile rubber Polymers 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 7
- 238000004381 surface treatment Methods 0.000 abstract description 6
- 238000005299 abrasion Methods 0.000 abstract description 5
- 238000007906 compression Methods 0.000 abstract description 4
- 230000006835 compression Effects 0.000 abstract description 4
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 abstract description 3
- 239000006229 carbon black Substances 0.000 abstract description 3
- 239000000203 mixture Substances 0.000 abstract description 3
- 239000004014 plasticizer Substances 0.000 abstract description 3
- 238000007789 sealing Methods 0.000 abstract description 3
- 235000014692 zinc oxide Nutrition 0.000 abstract description 3
- 239000011787 zinc oxide Substances 0.000 abstract description 3
- 239000003795 chemical substances by application Substances 0.000 abstract description 2
- 239000011256 inorganic filler Substances 0.000 abstract description 2
- 229910003475 inorganic filler Inorganic materials 0.000 abstract description 2
- 239000000126 substance Substances 0.000 abstract description 2
- 150000002825 nitriles Chemical class 0.000 abstract 2
- 239000000314 lubricant Substances 0.000 description 6
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 5
- 229920000181 Ethylene propylene rubber Polymers 0.000 description 4
- 229920006602 NBR/PVC Polymers 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 229920002545 silicone oil Polymers 0.000 description 3
- 230000003028 elevating effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 238000011282 treatment Methods 0.000 description 2
- 238000004073 vulcanization Methods 0.000 description 2
- 244000025254 Cannabis sativa Species 0.000 description 1
- 229920002943 EPDM rubber Polymers 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- HQQADJVZYDDRJT-UHFFFAOYSA-N ethene;prop-1-ene Chemical group C=C.CC=C HQQADJVZYDDRJT-UHFFFAOYSA-N 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000010186 staining Methods 0.000 description 1
- 229920001897 terpolymer Polymers 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- 239000001993 wax Substances 0.000 description 1
Landscapes
- Manufacture Of Macromolecular Shaped Articles (AREA)
Abstract
Description
【発明の詳細な説明】
（技術分野）
この発明は、ガラス摺接部位を具備するゴム成形品に関
する。当該種類のゴム成形品としては、ドアミラー取付
体、グラスラン、サンルーフウェザストリップ、ドアア
ウタウェザストリップ等を挙げることができる。DETAILED DESCRIPTION OF THE INVENTION (Technical Field) The present invention relates to a rubber molded product having a sliding contact portion with glass. Examples of this type of rubber molded product include door mirror mounts, glass runs, sunroof weather strips, door outer weather strips, and the like.
（従来の技術）
ここでは、ドアミラー取り付は体を例に採り説明をする
が、他のガラス摺接部位を具備するゴム成形品でも同様
である。(Prior Art) Although door mirror mounting will be explained using a body as an example, the same applies to other rubber molded products having glass sliding contact parts.
ドアミラーに関する法規制の緩和により、昨今、フェン
ダ−ミラー車に代って、主として意匠性等の見地から、
ドアミラー車の需要が増大しつつある。サツシュレスド
アにドアミラーを取付けるには、例えば、第３図に示す
ように、ミラー取付は部ｌを突出させてドア体１１に固
着されたゴム成形品２を介して取り付けていた。このゴ
ム成形品２の構成は一般に第１〜２図に示すようなもの
である。即ち、そのミラー取付は部ｌは、ドア閉時のド
ア体上縁１１ａとフロントピラー１２との間の挟角部を
占有する外形を有するとともに、フロントピラー当り側
を底部とするガラス収納溝３を有し、このガラス収納溝
３における上記挟角部に対向して位置する開口端縁に先
端側で相互に近接する一対の条リップ４．４かうなるグ
ラスラン部（ガラス摺接部位）５を有する。なお、６は
ドア体１１に固着するための取付は脚部である。ここで
、ミラー取付は部１は、板金性のＵ字形インサート７と
高分子弾性体材料からなる被覆部８とで形成されており
、グラスラン部５は被覆部８を延設して゛形成されてい
る。尚、９はミラー取付は孔、１０はリード線用孔であ
る。上記高分子弾性体材料としては、通常、従来からグ
ラスラン等に使用されてきたエチレンプロピレンゴム（
ＥＰＲ）が使用されている。このＥＰＲで形成された上
記グラスラン部５は、ガラス昇降荷重が重いとともにシ
ール性が良好でない、その理由は、第３図に示すように
、ガラスの昇降に際して、昇降ガラス１３がガラス収納
溝３に対してそれぞれ進入又は退出しながらグラスラン
部の条リップ４．４の先端部間を摺動するため、摺動抵
抗が大きくなり、第４図に示すように条リップ４の先端
部が反転しやすく、反転が固定してしまうことがあるた
めと推定される。Due to the relaxation of laws and regulations related to door mirrors, fender mirrors have recently been replaced mainly from the standpoint of design, etc.
Demand for cars with door mirrors is increasing. In order to attach a door mirror to a sash-less door, for example, as shown in FIG. 3, the mirror is attached via a rubber molded product 2 fixed to the door body 11 with a protruding portion 1. The structure of this rubber molded product 2 is generally as shown in FIGS. 1 and 2. That is, the mirror mounting portion 1 has an outer shape that occupies the narrow corner between the upper edge 11a of the door body and the front pillar 12 when the door is closed, and a glass storage groove 3 whose bottom is on the side that touches the front pillar. A pair of strip lips 4.4 and a glass run portion (glass sliding contact portion) 5 are provided on the opening edge of the glass storage groove 3, which is located opposite to the narrow angle portion. have Note that reference numeral 6 indicates a leg portion that is attached to the door body 11. Here, the mirror mounting part 1 is formed by a U-shaped insert 7 made of sheet metal and a covering part 8 made of an elastic polymer material, and the glass run part 5 is formed by extending the covering part 8. There is. Note that 9 is a hole for attaching a mirror, and 10 is a hole for a lead wire. The polymeric elastomer material mentioned above is usually ethylene propylene rubber (
EPR) is used. The above-mentioned glass run section 5 formed by this EPR has a heavy glass lifting load and poor sealing performance.The reason is that, as shown in FIG. Since it slides between the tips of the row lips 4.4 of the grass run part while entering or leaving the glass run portion, the sliding resistance becomes large, and the tips of the row lips 4 tend to turn over as shown in Fig. 4. , it is presumed that this is because the inversion may become fixed.
このためグラスラン部、即ちガラス摺接部位におけるガ
ラスとの摺動抵抗、即ち摩擦力の低減を目的として、通
常は、各条リップの摺動部位、即ち先端部内側にシリコ
ーンオイルやウレタン塗料等で表面処理して対処してい
たが、ウレタンの場合は製造に際して塗装前処理（プラ
イマ処理等）を必要とし製造工数が増大し、又シリコー
ンオイルの場合はオイルが付着してガラスが汚染され、
さらに両者とも経時後の塗膜脱落によりゴム面が露出し
て、摺動抵抗が再び増大するとともに、摩耗で発生する
ゴム微粉の付着によりガラスが黒く汚染される。For this reason, in order to reduce the sliding resistance, that is, frictional force, between the glass run part, that is, the glass sliding contact part, usually silicone oil, urethane paint, etc. are applied to the sliding part of each lip, that is, the inside of the tip. This was dealt with by surface treatment, but in the case of urethane, pre-painting treatment (primer treatment, etc.) is required during manufacturing, which increases the number of manufacturing steps, and in the case of silicone oil, the oil adheres and contaminates the glass.
Furthermore, in both cases, the coating film falls off over time, exposing the rubber surface, increasing the sliding resistance again, and the glass becomes black and contaminated due to the adhesion of fine rubber particles generated by wear.
（発明の目的）
この発明は、上記にかんがみて、ガラス摺接部位を具備
するゴム成形品において、ガラス摺動抵抗低減のために
、ガラス摺接部位に表面処理をしなくてもよいゴム成形
品を提供することを目的とする。(Object of the Invention) In view of the above, the present invention provides a rubber molded product having a glass sliding contact area that does not require surface treatment in order to reduce glass sliding resistance. The purpose is to provide products.
（発明の要旨）
この発明のゴム成形品は、少なくともそのガラス摺接部
位が、ポリ塩化ビニルの含有量を２０〜６０ｗｔ％とす
るニトリルゴムポリ塩化ビニルポリブレンドで形成され
ていることに特徴を有する（実施の態様）
ここでは、ゴム成形品として、従来の技術の項で説明し
°た第１〜２図に示す如くのドアミラー取付は体を例に
採り説明する。(Summary of the Invention) The rubber molded article of the present invention is characterized in that at least its glass sliding contact area is formed of a nitrile rubber polyvinyl chloride polyblend with a polyvinyl chloride content of 20 to 60 wt%. (Embodiment) Here, as a rubber molded product, the installation of a door mirror as shown in FIGS. 1 and 2 described in the section of the prior art will be explained using a body as an example.
このドアミラー取付は体（ゴム成形品）において、グラ
スラン部（ガラス摺接部位）５が、ポリ塩化ビニル（ｐ
ｖｃ）の含有量を２０〜６０ｗｔ％とするニトリルゴム
ポリ塩化ビニルポリブレンド（ｒＮＢＲ／ＰＶＣポリブ
レンド」と略す）で形成されている。ここで、ＰｖＣ含
有量が２０ｗｔ％未満であると、ＰＶＣの混合効果−摺
動抵抗の低減作用、及び耐候性、耐オゾン性、耐油性、
耐薬品性、耐摩耗性の改良□がでず、他方６０ｗｔ％を
超えると圧縮永久歪性が増大してグラスラン部の経時シ
ール性に問題を生じる。In this door mirror installation, the glass run part (glass sliding contact part) 5 is made of polyvinyl chloride (PPV) on the body (rubber molded product).
It is formed of a nitrile rubber polyvinyl chloride polyblend (abbreviated as "rNBR/PVC polyblend") having a content of 20 to 60 wt% of polyvinyl chloride (rNBR/PVC polyblend). Here, when the PvC content is less than 20 wt%, the mixing effect of PVC - sliding resistance reduction effect, weather resistance, ozone resistance, oil resistance,
Improvements in chemical resistance and abrasion resistance are not achieved, and on the other hand, if it exceeds 60 wt%, compression set increases, causing problems in the sealability of the glass run portion over time.
上記ポリブレンドには、使用に際して、通常ＮＢＲに配
合される無機充填剤（カーボンブラック、亜鉛華等）、
加硫剤、加硫促進剤、可塑剤等を配合する。When used, the above polyblend contains inorganic fillers (carbon black, zinc white, etc.) that are usually added to NBR,
Add vulcanizing agent, vulcanization accelerator, plasticizer, etc.
この配合に際して、第１表に示す特定の滑剤を１種又は
２種以上併用して１〜１０ＰＨＲ配合することがグラス
ラン部の摺動抵抗をさらに低減させることができ望まし
い。ここで滑剤配合量がｌＰ ＨＲ未満では滑剤添加効
果（摺動抵抗の低減作用）がでず、１０ＰＨＲを超える
と添加効果がほとんど増大しない上にブルームが発生し
てガラス汚染のおそれがある。In this blending, it is desirable to blend one or more of the specific lubricants shown in Table 1 at a rate of 1 to 10 PHR, as this can further reduce the sliding resistance of the glass run portion. If the amount of lubricant added is less than 1 PHR, the effect of adding the lubricant (sliding resistance reduction effect) will not be achieved, and if it exceeds 10 PHR, the effect of adding the lubricant will hardly increase and there is a risk of blooming and contaminating the glass.
上記この発明のドアミラー取付は体は、前述の如く、ミ
ラー取付は部１を突出させてドア体１１に固着し、ドア
ミラーをミラー取付は部１にねじ止め等により取り付け
て使用する。As described above, the door mirror mounting body of the present invention is used by making the mirror mounting part 1 protrude and fixing it to the door body 11, and by attaching the door mirror to the mirror mounting part 1 by screwing or the like.
尚、園側ではグラスラン部をミラー取付は部の被覆部と
一体成形しであるが、グラスラン部（ガラス摺接部位）
のみＮＢＲ／ＰＶＣポリブレンドで同時成形するか又は
別体成形して後から接着剤等で一体化してもよい。In addition, at the park, the glass run part and the mirror mounting part are integrally molded with the covering part of the part, but the glass run part (glass sliding contact part)
They may be molded simultaneously using NBR/PVC polyblend, or they may be molded separately and then integrated using an adhesive or the like.
（発明の効果）
この発明のゴム成形品は、上記の如く、少なくともガラ
ス摺接部位をＮＢＲ／ＰＶＣポリブレンドで形成するこ
とにより、後述の実施例・比較例で示すように、ＥＰＲ
で形成した場合に比してガラス摺接部位の摺動抵抗が格
段に低く、摺動抵抗を低減さ妊るための表面処理をしな
くても実車装着可能であある。従って、当然のことなが
ら、従来、シリコーンオイルやウレタン塗料による表面
処理で生じていた、ガラス汚れ、経時後の摺動抵抗の増
大がなく、シール性の低下等の問題も発生し難い。(Effects of the Invention) As described above, by forming at least the glass sliding contact area with NBR/PVC polyblend, the rubber molded product of the present invention has an EPR property as shown in Examples and Comparative Examples below.
The sliding resistance of the glass sliding contact area is much lower than that in the case where the glass sliding contact area is formed, and it can be mounted on an actual vehicle without any surface treatment to reduce the sliding resistance. Therefore, as a matter of course, problems such as glass staining, increase in sliding resistance over time, and deterioration of sealing performance, which have conventionally occurred with surface treatments using silicone oil or urethane paint, are not caused.
尚、ガラス汚れが発生しない理由は、ＮＢＲ／ＰＶＣポ
リブレンド自体が摩耗に際して発生ずるゴム微粉が、ガ
ラスに対して粘着性を有しないからである。The reason why glass stains do not occur is that the rubber fine powder generated when the NBR/PVC polyblend itself is abraded does not have adhesiveness to glass.
（実施例・比較例）
実施例・比較例の各試験片は、下記基礎配合においてポ
リマー及び滑剤を第２表に示すものとした配合物を用い
て、１００ ｋｇｆ／ｃ＋ｔ？ｘ １００℃×１０ｍ
１ｎ、の条件で加硫成形した２ ｍｍｔのゴムシートか
ら得た。(Examples and Comparative Examples) Each test piece of the Examples and Comparative Examples was made using the following basic formulation with the polymer and lubricant as shown in Table 2, and was tested at 100 kgf/c+t? x 100℃ x 10m
It was obtained from a 2 mmt rubber sheet that was vulcanized and molded under conditions of 1n.
基礎配合（単位：重量部）；
ポリマー １００カーボンブラ
ツク ６０可塑剤
３０亜鉛華
５流黄 ０．５加硫促
進剤 ４滑剤
変量また、各緒特性の試験方法は、下
記の如くである。Basic composition (unit: parts by weight); Polymer 100 Carbon Black 60 Plasticizer
30 zinc white
5 Ryuu Yellow 0.5 Vulcanization Accelerator 4 Lubricant
The testing methods for variables and individual characteristics are as follows.
（１）摺動抵抗：
第５図に示すように２ ｍｍｔシート（試験片）２１上
にガラス板２２ （５０ｍｍＸ １００ｍｍＸ ５ｍ＋
ｎｔ）及び鐘２３ （５００ｇ又は１００ｇ）を載せ糸
２４で引っ張ってガラス板すべり状態の平均荷重（動摩
擦）を測定した。(1) Sliding resistance: As shown in Fig. 5, a glass plate 22 (50 mm x 100 mm x 5 m +
nt) and the bell 23 (500 g or 100 g) were placed on the glass plate and pulled with the string 24, and the average load (dynamic friction) in the glass plate sliding state was measured.
（２）耐オゾン性：動的オゾン試験でクラック発生峙間
を評価（条件；Ｏ〜２０％伸長繰り返し６０ ｃｐｍ、
オゾン濃度５０ｐｐｈｍ、雰囲気温度３８℃）（３）耐
摩耗性ニアクロン摩耗試験（ＢＳ９０３アートＡ９）（
条件；荷重６［ｂ、、角度１５゜回転数（ドラム側３３
ｒｐｍ、試料側１６ ｒｐｍ、） ）（４）圧縮永久
歪：ＪＩＳに６３０１−１０ （条件、１００’ｌ：Ｘ
２２ｈｒ、 ２５％圧！１１）第２表１こ示す結果
から、この発明のＮＢＲ／ＰＶＣポリブレンドでガラス
摺接部位が成形されたゴム成形品は、ＥＰＤＭでグラウ
ラン部が成形されたものに比して、摺動抵抗が格段に低
いことは勿論、耐摩耗性も良好であり、圧縮永久歪性、
耐オゾン性も十分実用に絶え得るものであることがわか
る。(2) Ozone resistance: Evaluate crack generation by dynamic ozone test (conditions: O~20% elongation repetition 60 cpm,
Ozone concentration 50pphm, ambient temperature 38℃) (3) Abrasion resistance Niacron abrasion test (BS903 Art A9) (
Conditions: load 6[b,, angle 15° rotation speed (drum side 33
rpm, sample side 16 rpm, ) (4) Compression set: JIS 6301-10 (conditions, 100'l:
22hr, 25% pressure! 11) From the results shown in Table 2, it can be seen that the rubber molded product in which the glass sliding contact part is molded with the NBR/PVC polyblend of the present invention has a higher sliding resistance than the rubber molded product in which the glass sliding contact part is molded with EPDM. Not only is it extremely low, but it also has good abrasion resistance, compression set,
It can be seen that the ozone resistance is also sufficient for practical use.
第
表
第
２
表
※１）
エチレンプロピレンターポリマー
※２）
パラフィン１１５°Ｆ（３）＋ポリエチンワックス（４
）※３）
ｍβ／１０００回Table 2 Table *1) Ethylene propylene terpolymer *2) Paraffin 115°F (3) + polyethine wax (4)
) *3) mβ/1000 times
第１図は第２図における１−Ｉ線端面図、第２図はこの
発明を適用するゴム成形品の一例であるドアミラー取付
は体の正面図、
第３図は実車装着時のゴム成形品と昇降ガラスの位置関
係を示すモデル図、
第４図は第３図におけるＴＶ−ＩＶ線部位のゴム成形品
と昇降ガラスの位置関係を示す端面図、第５図は摺動抵
抗の測定方法を示すモデル図である。
１・・・ミラー取付は部、
２・・・ゴム成形品、
３・・・ガラス収納溝、
５・・・グラスラン部（ガラス摺接部位）、１１・・・
ドア体、
１１ａ・・・ドア体上縁、
１２・・・フロントピラー
１３・・・昇降ガラス。Fig. 1 is an end view taken along the line 1-I in Fig. 2, Fig. 2 is a front view of a door mirror mounting example of a rubber molded product to which this invention is applied, and Fig. 3 is a rubber molded product when installed on an actual vehicle. Fig. 4 is an end view showing the positional relationship between the rubber molded product and the elevating glass at the TV-IV line in Fig. 3, and Fig. 5 shows the method for measuring sliding resistance. FIG. 1...Mirror mounting part, 2...Rubber molded product, 3...Glass storage groove, 5...Glass run part (glass sliding contact part), 11...
Door body, 11a... Upper edge of door body, 12... Front pillar 13... Elevating glass.
Claims (1)
も前記ガラス摺接部位が、ポリ塩化ビニルの含有量を２
０〜６０ｗｔ％とするニトリルゴムポリ塩化ビニルポリ
ブレンドで形成されていることを特徴とするゴム成形品
。In a rubber molded product having a glass sliding contact area, at least the glass sliding contact area has a polyvinyl chloride content of 2
A rubber molded article characterized in that it is formed from a nitrile rubber polyvinyl chloride polyblend containing 0 to 60 wt%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31822990A JPH03183533A (en) | 1984-04-30 | 1990-11-21 | Rubber molding |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8817084A JPS60234046A (en) | 1984-04-30 | 1984-04-30 | Door mirror mounting body |
| JP31822990A JPH03183533A (en) | 1984-04-30 | 1990-11-21 | Rubber molding |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8817084A Division JPS60234046A (en) | 1984-04-30 | 1984-04-30 | Door mirror mounting body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03183533A true JPH03183533A (en) | 1991-08-09 |
Family
ID=26429596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP31822990A Pending JPH03183533A (en) | 1984-04-30 | 1990-11-21 | Rubber molding |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03183533A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60234046A (en) * | 1984-04-30 | 1985-11-20 | Toyoda Gosei Co Ltd | Door mirror mounting body |
-
1990
- 1990-11-21 JP JP31822990A patent/JPH03183533A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60234046A (en) * | 1984-04-30 | 1985-11-20 | Toyoda Gosei Co Ltd | Door mirror mounting body |
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