JPH04165131A - Rubber damper - Google Patents
Rubber damperInfo
- Publication number
- JPH04165131A JPH04165131A JP28962190A JP28962190A JPH04165131A JP H04165131 A JPH04165131 A JP H04165131A JP 28962190 A JP28962190 A JP 28962190A JP 28962190 A JP28962190 A JP 28962190A JP H04165131 A JPH04165131 A JP H04165131A
- Authority
- JP
- Japan
- Prior art keywords
- rubber
- damper
- rubber damper
- coil spring
- resistance
- 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
- 150000001875 compounds Chemical class 0.000 claims abstract description 8
- 150000001993 dienes Chemical class 0.000 claims abstract description 8
- 229920001577 copolymer Polymers 0.000 claims abstract description 6
- 230000000694 effects Effects 0.000 claims description 4
- 150000002825 nitriles Chemical class 0.000 claims description 4
- 238000013016 damping Methods 0.000 claims 1
- 230000032683 aging Effects 0.000 abstract description 5
- 239000000463 material Substances 0.000 abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 abstract 2
- 238000005299 abrasion Methods 0.000 description 3
- 229920005601 base polymer Polymers 0.000 description 3
- 238000013329 compounding Methods 0.000 description 3
- 238000009472 formulation Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000010060 peroxide vulcanization Methods 0.000 description 3
- 230000000704 physical effect Effects 0.000 description 3
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000006229 carbon black Substances 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000004073 vulcanization Methods 0.000 description 2
- 239000011787 zinc oxide Substances 0.000 description 2
- 235000014692 zinc oxide Nutrition 0.000 description 2
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 230000003712 anti-aging effect Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000003431 cross linking reagent Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 101150044757 danr gene Proteins 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- -1 fatty acid ester Chemical class 0.000 description 1
- 238000005984 hydrogenation reaction Methods 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- 230000000116 mitigating effect Effects 0.000 description 1
- 150000001451 organic peroxides Chemical class 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 238000010059 sulfur vulcanization Methods 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〈産業上の利用分野〉
本発明は、振動環境下の装置に組み付けられるコイルば
ね外側および内側の一方又は双方に嵌着され、該コイル
ばねが受ける振動を緩和させるダンパ作用を奏するゴム
ダンパに関する。Detailed Description of the Invention <Industrial Application Field> The present invention relates to a damper that is fitted to one or both of the outer and inner sides of a coil spring assembled in a device under a vibrating environment, and which alleviates the vibrations experienced by the coil spring. It relates to a rubber damper that works.
以下の説明で配合単位は、特にことわらない限り、重量
単位である。In the following description, the compounding unit is a weight unit unless otherwise specified.
下記に、本発明で示す略号の一覧を示す。Below is a list of abbreviations used in the present invention.
Ｈ−ＮＢＲ・・・共役ジエン単位部分が少なくとも５０
％水素化されている部分水素化不飽和ニトリル−共役ジ
エン系共重合体、
ＣＲ・・・クロロブレンゴム、
ＡＮ・・・アクリロニトリル、
〈従来の技術〉
ここでは、第２図に示す如く、自動車のエンジンにおけ
るタイミングベルト１の張力調整のアイドラ３に所定の
付勢力を付与するために使用するコイルばね５を例に採
り説明するが、適用分野はこれに限られれものではない
。H-NBR...Conjugated diene unit moiety is at least 50
% hydrogenated partially hydrogenated unsaturated nitrile-conjugated diene copolymer, CR...Chlorobrene rubber, AN...Acrylonitrile <Prior art> Here, as shown in Fig. 2, automobile Although the coil spring 5 used to apply a predetermined biasing force to the idler 3 for adjusting the tension of the timing belt 1 in an engine will be described as an example, the field of application is not limited to this.
この種のコイルばね５には、第１図に示す如く、ばねの
振動を緩和させるために、コイルばね５の外側および内
側にそれぞれ筒状のゴムダンパ７．９を嵌着させて使用
する。As shown in FIG. 1, this type of coil spring 5 is used with cylindrical rubber dampers 7.9 fitted on the outside and inside of the coil spring 5, respectively, in order to dampen the vibrations of the spring.
そして、このゴムダンパの形成材料は、従来、耐候性、
耐オゾン性、耐熱老化性、耐油性、耐薬品性等の諸物性
が概して優れているＣＲが主流であった。Conventionally, the material used to form this rubber damper is weather resistant,
CR has been the mainstream as it generally has excellent physical properties such as ozone resistance, heat aging resistance, oil resistance, and chemical resistance.
〈発明が解決しＪ：つとする課題〉
しかし、このゴムダンパか長期間、良好な振動吸収特性
を示すには、ＣＲ成形体では、充分ではないことが、分
ってきた。<Problems to be Solved by the Invention> However, it has been found that the CR molded body is not sufficient for this rubber damper to exhibit good vibration absorption characteristics for a long period of time.
即ち、良好な振動吸収特性を示すためには、ゴムダンパ
がコイルばねの内周面および外周面に常時、圧接状態に
ある必要があり、良好な耐へたり性（耐圧縮永久歪性）
か要求される。また、常時振動するコイルばねによりゴ
ムダンパの外周面又は内周面が摩擦作用を受けるため、
良好な耐摩耗性が要求される。さらに、昨今の自動車の
高性能化に伴なうエンンシンルーム内等における高温雰
囲気化傾向は、高度の耐熱老化性も要求されるようにな
ってきた。In other words, in order to exhibit good vibration absorption characteristics, the rubber damper must always be in pressure contact with the inner and outer peripheral surfaces of the coil spring, and it must have good resistance to settling (compression set resistance).
or required. In addition, since the outer or inner circumferential surface of the rubber damper is subject to friction due to the constantly vibrating coil spring,
Good abrasion resistance is required. Furthermore, with the recent trend towards high-temperature atmospheres in engine rooms and the like as the performance of automobiles increases, a high degree of heat aging resistance is also required.
本発明は、上記にかんがみて、これらの諸物性を満足さ
せることのできゴムダンパを提供することを目的とする
。In view of the above, an object of the present invention is to provide a rubber damper that can satisfy these various physical properties.
く課題を解決するだめの手段〉
本発明者らは、特定ポリマーのゴム配合物で形成したゴ
ムダンパか」二記諸物性を満たずことを見い出し、下記
構成の本発明に想到した。Means for Solving the Problems> The present inventors have discovered that a rubber damper formed from a rubber compound of a specific polymer does not satisfy the physical properties listed in "2", and have come up with the present invention having the following configuration.
振動環境下の装置に絹み付けられる金属製のコイルばね
外側および内側の一方又は双方に嵌着され、該コイルば
ねか受りる振動を緩和させるダンパ作用を奏するゴムダ
ンパにおいて、
共役ジエン単位部分か少なくとも９５％以上水素化され
ている部分水素化不飽和ニトリル−共役ジエン系共重合
体をベースポリマーとするゴム配合物の加硫物で形成さ
れている、ことを特徴とする。In a rubber damper that is fitted to one or both of the outer and inner sides of a metal coil spring that is attached to a device in a vibrating environment, and which acts as a damper to alleviate vibrations received by the coil spring, a conjugate diene unit part is used. It is characterized in that it is formed of a vulcanized product of a rubber compound whose base polymer is a partially hydrogenated unsaturated nitrile-conjugated diene copolymer that is at least 95% hydrogenated.
〈実施例〉 以下、本発明のゴムダンパについて詳細に説明をする。<Example> Hereinafter, the rubber damper of the present invention will be explained in detail.
（１）本発明のゴムダンパは、振動環境下の装置に組み
付けられる金属製のコイルばね外側および内側の一方又
は双方に嵌着され、該コイルばねが受ける振動を緩和さ
せるダンパ作用を奏するものであることを前提的構成と
する。(1) The rubber damper of the present invention is fitted onto one or both of the outer and inner sides of a metal coil spring that is assembled into a device under a vibration environment, and has a damper effect of mitigating vibrations received by the coil spring. This is the prerequisite configuration.
ここで、内側ゴムダンパ７．７△は、筒状体をカツトシ
たもの（第３図参照）、筒状体の周壁の軸線方向に撓み
凹条７ａを形成したもの（第４図参照）等任意である。Here, the inner rubber damper 7.7△ may be any one such as a cut-out cylindrical body (see Fig. 3), a cylindrical body with bending grooves 7a formed in the axial direction of the peripheral wall (see Fig. 4), etc. It is.
外側ゴムダンパ９は、筒状体の内側に滑り止め凸部９ａ
を複数個形成したものとする。また、各ゴムダンパの肉
厚は、コイルばねの大きさによっても異なるか、通常、
２〜３ｍｍとし、各外側ゴムダンパ、内側ゴムダンパに
対するコイルばね外周面および内周面の食込み量は、０
５〜１ ｍｍとする。The outer rubber damper 9 has a non-slip protrusion 9a on the inside of the cylindrical body.
Assume that a plurality of . Also, the wall thickness of each rubber damper may vary depending on the size of the coil spring, or
The depth should be 2 to 3 mm, and the amount of penetration of the outer and inner circumferential surfaces of the coil springs into each outer rubber damper and inner rubber damper should be 0.
5 to 1 mm.
そして、上記各ゴムダンパの製造は、ゴム材料（ゴム配
合物）を、押出し成形又は型成形により成形・加硫を行
ない、押出の場合は、所定長に裁断して製造する。Each of the above-mentioned rubber dampers is manufactured by molding and vulcanizing a rubber material (rubber compound) by extrusion molding or die molding, and in the case of extrusion, cutting it into a predetermined length.
（２）本発明の特徴的構成は、上記ダンパを、ＡＮ量が
３５〜４５％で、共役ジエン単位部分が少なくとも８５
〜９９％以上水素化されている部分水素化不飽和ニトリ
ル−共役ジエン系共重合体をゴム成分とするゴム配合物
の加硫物で形成することにある。(2) A characteristic configuration of the present invention is that the damper has an AN content of 35 to 45% and a conjugated diene unit portion of at least 85%.
The purpose is to form a vulcanized product of a rubber compound whose rubber component is a partially hydrogenated unsaturated nitrile-conjugated diene copolymer that has been hydrogenated to 99% or more.
■ここでＡ Ｎ量が、過少であると、摩耗性及び機械的
強度の低下につながり、過多であると、耐寒性が低下す
る。(2) If the amount of AN is too small, the abrasion resistance and mechanical strength will be reduced, and if it is too large, the cold resistance will be reduced.
■また、水素化度か、８５％未満では、耐熱性が低下し
、９８％を超えると硫黄加硫した場合、所定の強度を得
がたくなり、へたり性も低下する■加硫系は、過酸化物
加硫系、硫黄加硫系どちらでもよいが、耐へたり性の見
地からは過酸化物加硫系が望ましい。■In addition, if the degree of hydrogenation is less than 85%, heat resistance will decrease, and if it exceeds 98%, it will be difficult to obtain the specified strength when sulfur vulcanized, and the setting property will also decrease. ■The vulcanization system is Either a peroxide vulcanization system or a sulfur vulcanization system may be used, but a peroxide vulcanization system is preferable from the viewpoint of resistance to settling.
下記に本発明のゴムダンパの製造に使用する配合処方（
過酸化物加硫系）の−例を示す。The compounding recipe used for manufacturing the rubber damper of the present invention (
An example of a peroxide vulcanization system is shown below.
Ｈ−ＮＢＲ配合処方
ゴム成分（Ｚｅｔｐｏｌ ２０２０ＳＧ ＊ ） １
００部脂肪酸エステル １５部カーボ
ンブラック（ＳＲＦ） ６０部熱老化防止剤
３部亜鉛華
５部有機過酸化物 ６部共架
橋剤 ３部＊日本ゼオン■製
造・販売
〈発明の作用・効果〉
本発明のゴムダンパは、上記の如く、特定のＨ−ＮＢＲ
をベースポリマーとするゴム配合物で形成することによ
り、耐へたり性、耐摩耗性、耐熱老化性に優れたゴムダ
ンパを得ることができる。H-NBR compounding prescription rubber component (Zetpol 2020SG *) 1
00 parts fatty acid ester 15 parts carbon black (SRF) 60 parts heat aging inhibitor
3 parts zinc white
5 parts Organic peroxide 6 parts Co-crosslinking agent 3 parts *Nippon Zeon■ Manufacture and sales <Operations and effects of the invention> As described above, the rubber damper of the present invention is made of a specific H-NBR.
By forming a rubber compound using a base polymer as a base polymer, it is possible to obtain a rubber damper that has excellent resistance to setting, abrasion, and heat aging.
〈実施例〉
本発明の効果を確認するために、比較例とともに行なっ
た実施例について説明をする。<Example> In order to confirm the effects of the present invention, an example performed together with a comparative example will be described.
上記例示のＨ−ＮＢＲ配合物を使用して、第１表に示す
各項目の試験を行ない、同時に、下記処方のＣＲ配合物
についても同様の試験を行なった。第１表に示す結果か
ら、本発明のダンパを形成するゴム材料の加硫物は、従
来のＣＲ加硫物に比して、格段に耐へたり性（圧縮永久
歪試験）、耐摩耗性、および耐熱性に優れていることが
分る。Using the above-exemplified H-NBR formulation, tests were conducted on each item shown in Table 1, and at the same time, similar tests were conducted on CR formulations having the following formulations. From the results shown in Table 1, the vulcanized product of the rubber material forming the damper of the present invention has significantly higher resistance to settling (compression set test) and wear resistance than conventional CR vulcanized products. , and has excellent heat resistance.
旦Ｒ：］’ Ａ ｉ（： Ａ−物
ゴム成分（ネオブレン ＷＸ−Ｊ＊ ） １００部カ
ーボンブラック（ＭＡＦ） ３０部亜鉛華
５部マグネシア
５部加硫促進剤 ２
部老化防止剤 ６部＊昭和ネオ
ブレン■製造
第 １ 表DanR: ]' A i (: A-rubber component (Neobrene WX-J*) 100 parts Carbon black (MAF) 30 parts Zinc white
5th part magnesia
5 parts vulcanization accelerator 2
Part Anti-aging agent 6 parts *Showa Neobrene ■Manufacturing Table 1
第１図は本発明のゴムダンパの使用態様を示す断面図、
第２図はゴムダンパを組み付けるコイルばねの装着部位
の一例を示す概略図、
第３図は内側ゴムダンパの一例を示す！Ｉ４視図１第４
図は同じく他の例を示す斜視図である。
５・・・コイルばね、
７．７Ａ・・・内側ゴムダンパ、
９・・・外側ゴムダンパ。
特 許 出 願 人
豊田合成株式会社
叉−ノ
第 ３ 図
第 ４ 図
ａFig. 1 is a cross-sectional view showing how the rubber damper of the present invention is used, Fig. 2 is a schematic view showing an example of a coil spring attachment part to which the rubber damper is assembled, and Fig. 3 is an example of an inner rubber damper! I4 View 1 4th
The figure is a perspective view showing another example. 5...Coil spring, 7.7A...Inner rubber damper, 9...Outer rubber damper. Patent application Toyoda Gosei Co., Ltd. Figure 3 Figure 4 a
Claims (1)
び内側の一方又は双方に嵌着され、該コイルばねが受け
る振動を緩和させるダンパ作用を奏するゴムダンパにお
いて、 共役ジエン単位部分が少なくとも９５％以上水素化され
ている部分水素化不飽和ニトリル−共役ジエン系共重合
体をゴム成分とするゴム配合物の加硫物で形成されてい
る、 ことを特徴とするゴムダンパ。[Scope of Claims] A rubber damper that is fitted onto one or both of the outside and inside of a coil spring that is assembled into a device under a vibration environment, and has a damping effect that alleviates vibrations received by the coil spring, comprising at least a conjugated diene unit portion. A rubber damper characterized in that it is formed of a vulcanized product of a rubber compound whose rubber component is a partially hydrogenated unsaturated nitrile-conjugated diene copolymer that is 95% or more hydrogenated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28962190A JPH04165131A (en) | 1990-10-27 | 1990-10-27 | Rubber damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28962190A JPH04165131A (en) | 1990-10-27 | 1990-10-27 | Rubber damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04165131A true JPH04165131A (en) | 1992-06-10 |
Family
ID=17745607
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP28962190A Pending JPH04165131A (en) | 1990-10-27 | 1990-10-27 | Rubber damper |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04165131A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010050214A1 (en) | 2008-10-31 | 2010-05-06 | 株式会社エフテック | Anti-vibration damper for coil spring |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62297557A (en) * | 1986-06-16 | 1987-12-24 | Tokai Rubber Ind Ltd | Torsional damper having excellent burst resistance |
-
1990
- 1990-10-27 JP JP28962190A patent/JPH04165131A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62297557A (en) * | 1986-06-16 | 1987-12-24 | Tokai Rubber Ind Ltd | Torsional damper having excellent burst resistance |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010050214A1 (en) | 2008-10-31 | 2010-05-06 | 株式会社エフテック | Anti-vibration damper for coil spring |
| CN102187113A (en) * | 2008-10-31 | 2011-09-14 | 株式会社F.泰克 | Anti-vibration damper for coil spring |
| US8800972B2 (en) | 2008-10-31 | 2014-08-12 | F-Tech Inc. | Vibration insulation damper for coil spring |
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