JPH0730805B2 - Corrugated ring spring made of fiber reinforced composite material - Google Patents
Corrugated ring spring made of fiber reinforced composite materialInfo
- Publication number
- JPH0730805B2 JPH0730805B2 JP62239949A JP23994987A JPH0730805B2 JP H0730805 B2 JPH0730805 B2 JP H0730805B2 JP 62239949 A JP62239949 A JP 62239949A JP 23994987 A JP23994987 A JP 23994987A JP H0730805 B2 JPH0730805 B2 JP H0730805B2
- Authority
- JP
- Japan
- Prior art keywords
- spring
- ring
- corrugated ring
- fiber
- corrugated
- 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
- 239000000463 material Substances 0.000 title claims description 10
- 239000003733 fiber-reinforced composite Substances 0.000 title claims description 6
- 239000012783 reinforcing fiber Substances 0.000 claims description 13
- 238000005452 bending Methods 0.000 claims description 5
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 4
- 239000004917 carbon fiber Substances 0.000 claims description 4
- 239000000835 fiber Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 239000011162 core material Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000000465 moulding Methods 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 238000009730 filament winding Methods 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000004760 aramid Substances 0.000 description 1
- 229920003235 aromatic polyamide Polymers 0.000 description 1
- 239000004918 carbon fiber reinforced polymer Substances 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 210000004177 elastic tissue Anatomy 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 239000007849 furan resin Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000013007 heat curing Methods 0.000 description 1
- 239000012510 hollow fiber Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 239000009719 polyimide resin Substances 0.000 description 1
- 230000002250 progressing effect Effects 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229920006337 unsaturated polyester resin Polymers 0.000 description 1
- 229920001567 vinyl ester resin Polymers 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F1/00—Springs
- F16F1/02—Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
- F16F1/32—Belleville-type springs
- F16F1/328—Belleville-type springs with undulations, e.g. wavy springs
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F2224/00—Materials; Material properties
- F16F2224/02—Materials; Material properties solids
- F16F2224/0241—Fibre-reinforced plastics [FRP]
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Springs (AREA)
Description
【発明の詳細な説明】 〔技術分野〕 本発明は繊維強化複合材料（以下FRPという）製の波形
リングバネに関するものである。更に詳しくは、繰返し
負荷を受けて使用されるFRP製の波形リングバネに関す
るものである。このものは、FRP製のコイルバネでは達
成できなかった性能を発揮する。Description: TECHNICAL FIELD The present invention relates to a corrugated ring spring made of a fiber-reinforced composite material (hereinafter referred to as FRP). More specifically, the present invention relates to a corrugated ring spring made of FRP that is used under repeated load. This one has performance that could not be achieved with the FRP coil spring.
FRPの高い比弾性率が着目される中でバネへの応用もそ
の軽量化効果等の利点から徐々に普及しつつある。With the high specific elastic modulus of FRP drawing attention, its application to springs is gradually spreading due to its weight-saving effects.
板バネのFRP化が促進されるのに対して、コイルバネのF
RP化が遅々として進まないのは、以下の様な理由によ
る。即ち、コイルバネに要求される機械的特性は横弾性
係数が高いことであり、このため強化繊維はコイリング
された素線の軸芯に対して±45゜に構成することが必要
とされる。従って、これを製作するには、任意に選択さ
れた芯材に対して強化繊維を±45゜に巻回した素線をコ
イリングのために更に巻回しなければならなかった。こ
の煩わしさに加えて、通常芯材に強化繊維を巻回するの
は、芯材が真直な状態で行なわれるのでコイリング時に
曲げられ、しわが発生し、これが欠陥となる場合も多
い。While the FRP of the leaf spring is promoted, the F of the coil spring is
The reason why RP is not progressing slowly is as follows. That is, the mechanical property required for the coil spring is that the transverse elastic coefficient is high, and therefore the reinforcing fiber must be formed at ± 45 ° with respect to the axis of the coiled wire. Therefore, in order to manufacture this, it was necessary to further wind the wire in which the reinforcing fiber was wound at ± 45 ° around the core material selected arbitrarily for coiling. In addition to this annoyance, winding the reinforcing fiber around the core material is usually performed in a straight state of the core material, so that the core material is bent at the time of coiling to cause wrinkles, which often becomes a defect.
また、バネ自体の重量軽減に対しては素線が中空体でな
ければその効果を十分に得られないことから、強化繊維
がコイル素線の軸芯に対して±45゜に配向した中空のコ
イルバネを製作することが、重量軽減のために必要とさ
れている。しかし、このようなコイルバネを成形するの
は非常に難しく、量産に適する成形方法は見出されてい
ないのが現状である。In addition, for reducing the weight of the spring itself, the effect cannot be sufficiently obtained unless the strand is a hollow body. Therefore, a hollow fiber in which the reinforcing fiber is oriented at ± 45 ° with respect to the axis of the coil strand is used. Fabrication of coil springs is needed to reduce weight. However, it is very difficult to mold such a coil spring, and at present, no molding method suitable for mass production has been found.
繊維強化材を用いたコイルバネが成形し難く製作上問題
があるので、本発明者等は、この問題を解決すべく鋭意
検討を重ねてきた。その結果、コイルバネの形態を踏襲
する以上、問題を解決することができず、円周方向に稜
部と谷部を有する波形リングバネが目的に適合し、成形
が容易で且つコイルバネに比べて軽量化効果の大きいこ
とを見出したのである。Since the coil spring using the fiber reinforced material is difficult to form and has a manufacturing problem, the inventors of the present invention have conducted earnest studies to solve this problem. As a result, the problem cannot be solved as long as the shape of the coil spring is followed, and the corrugated ring spring having ridges and valleys in the circumferential direction is suitable for the purpose, easy to mold and lighter than the coil spring. We found that the effect was great.
即ち、本発明は下記の通りである。That is, the present invention is as follows.
周方向に強化繊維が配向した繊維強化複合材料からなる
リング状物であって、リング面が複数の放射状の陵部と
谷部とからなる波形を形成し、当該リングの仮想平面に
垂直な荷重に対し周方向傾斜部が曲げ変形することによ
ってバネ機能を有する波形リングをバネ要素とすること
を特徴とする繰返し負荷を受けて使用される繊維強化複
合材料製の波形リングバネ。A ring-shaped material made of a fiber-reinforced composite material in which reinforcing fibers are oriented in the circumferential direction, the ring surface forming a corrugated shape composed of a plurality of radial ridges and valleys, and a load perpendicular to an imaginary plane of the ring. On the other hand, a corrugated ring spring made of a fiber-reinforced composite material to be used under repeated load, characterized in that a corrugated ring having a spring function is used as a spring element by bending and deforming a circumferentially inclined portion.
周知のとおりコイルバネは、荷重を受けると、この素線
が主にねじり負荷を受ける。これに対して、波形リング
バネの場合は、曲げ負荷がかかり、このため強化繊維は
リグの周方向に配向すればよいことになる。従って、当
該波形リングバネは、フィラメントワィンド法や圧縮成
形法などによって極めて簡単に成形することができる。As is well known, when a coil spring receives a load, the strand mainly receives a torsion load. On the other hand, in the case of the corrugated ring spring, a bending load is applied, so that the reinforcing fibers should be oriented in the circumferential direction of the rig. Therefore, the corrugated ring spring can be molded very easily by the filament wind method, the compression molding method, or the like.
本発明において、FRPの強化繊維は炭素繊維、ガラス繊
維、芳香族ポリアミド繊維等の高弾性繊維であり、特に
炭素繊維のフィラメントは、振動減衰性、高比弾性、高
比強度の点から好ましい。また、これらの繊維は単独で
あるいは組合せて用いることが可能である。組合せて用
いる場合においては、異る強化材繊維を層状に配した、
いわゆるハイブリッド構造に配設することもできる。In the present invention, the reinforcing fiber of FRP is a highly elastic fiber such as carbon fiber, glass fiber, aromatic polyamide fiber, and the filament of carbon fiber is particularly preferable from the viewpoint of vibration damping property, high specific elasticity and high specific strength. Further, these fibers can be used alone or in combination. When used in combination, different reinforcing material fibers are arranged in layers,
It can also be arranged in a so-called hybrid structure.
繊維強化材のマトリックス樹脂は、エポキシ樹脂、ビニ
ルエステル樹脂、不飽和ポリエステル樹脂、フラン樹
脂、フェノール樹脂、ポリイミド樹脂等である。The matrix resin of the fiber reinforcement is epoxy resin, vinyl ester resin, unsaturated polyester resin, furan resin, phenol resin, polyimide resin, or the like.
本発明における強化繊維の配向は、実質上、リングの周
方向に配向していることが必要である。これは前にも述
べた通り、コイルバネがねじり負荷を受けるのに対し、
本発明の波形バネは、リング状でありながら曲げ負荷を
受けるものであることによる。The orientation of the reinforcing fibers in the present invention needs to be oriented substantially in the circumferential direction of the ring. As mentioned earlier, this is because the coil spring receives a torsional load,
This is because the wave spring of the present invention has a ring shape and is subjected to a bending load.
しかし、強化繊維のバネ作用部は周方向に配向している
が、周方向強化繊維部のクラック発生を防止する等のた
め、一部の繊維は周方向に対し、若干角度をもって配向
することもできる。However, although the spring action portion of the reinforcing fiber is oriented in the circumferential direction, some fibers may be oriented at a slight angle with respect to the circumferential direction in order to prevent the occurrence of cracks in the circumferential reinforcing fiber portion. it can.
本発明において仮想平面とは、本発明波形リングバネを
水平面上に静置したときに、当該波形リングバネの各稜
部を共有する、前記水平面と平行な仮想される面をい
う。In the present invention, the virtual plane means an imaginary plane parallel to the horizontal plane, which shares each ridge of the corrugated ring spring when the corrugated ring spring of the present invention is placed on the horizontal plane.
本発明において稜部と谷部とは、放射状にリングの中心
に向って形成されていることが必要である。In the present invention, the ridges and valleys need to be radially formed toward the center of the ring.
本発明の例を図面によって説明する。An example of the present invention will be described with reference to the drawings.
第１図は、本発明波形リングバネのバネ要素を例示した
ものである。第２図はバネ要素の平面図、第３図はバネ
要素の側面図を示す。第１〜３図において、１はバネ本
体、２は稜部、３は谷部、４はリングの内周端、５は外
周端を示す。第１図のバネ本体の断面は矩形の例を示し
たものであるが、必ずしも矩形に限定されず、円形、楕
円形、正方形又はこれ等の変形であってもよい。また全
体が同一断面積をもつ必要もない。リングの枚数、寸法
並びにリング一枚当りの稜部及び谷部の数等は図面によ
って限定されるものではない。そして、稜部から谷部に
至る形状は直線的でも曲線的でも差支えないが、負荷時
に応力集中を来たさぬように配慮する必要がある。FIG. 1 illustrates the spring element of the corrugated ring spring of the present invention. FIG. 2 shows a plan view of the spring element, and FIG. 3 shows a side view of the spring element. 1 to 3, 1 is a spring body, 2 is a ridge, 3 is a valley, 4 is an inner peripheral end of a ring, and 5 is an outer peripheral end. The cross section of the spring body of FIG. 1 shows an example of a rectangle, but the cross section is not necessarily limited to a rectangle, and may be a circle, an ellipse, a square, or a modification thereof. Further, it is not necessary that the whole has the same cross-sectional area. The number and size of the rings and the number of ridges and valleys per ring are not limited by the drawings. The shape from the ridge to the valley may be linear or curved, but it is necessary to consider so as not to cause stress concentration during loading.
一般的に曲げ負荷がかかる場合に、その支点間距離と部
材の厚さとの比が小さくなるにつれ、剪断の影響を受け
て見掛けの縦弾性係数は低下してくることが知られてい
る。従って、波形リングバネにおいてもこの点を考慮す
る必要があり、波形のピッチ長さがその厚さに対して５
以上となることが望ましい。そして、バネ定数を大きく
とろうとするとき、リングの幅を広くするよりもリング
厚さを大きくするほうが、理論上より効果的である。It is generally known that when a bending load is applied, the apparent longitudinal elastic modulus decreases due to the influence of shearing as the ratio between the fulcrum distance and the member thickness decreases. Therefore, it is necessary to consider this point also in the corrugated ring spring, and the pitch length of the corrugation is 5 with respect to its thickness.
It is desirable to be above. Then, when trying to increase the spring constant, it is theoretically more effective to increase the ring thickness than to increase the width of the ring.
但し、この場合強度との関係もあるので実際にかかる負
荷に応じてバランスよくその厚さと幅を設定することが
必要である。However, in this case, there is also a relationship with the strength, so it is necessary to set the thickness and width in a well-balanced manner according to the load actually applied.
第４図は、第１図に示した本発明バネ要素を８枚重ねた
バネ構造の側面図を示したものである。第５図は第１図
に示したバネ要素の成形に用いられるフィラメントワイ
ンディング用金型の側面図を示したものである。FIG. 4 is a side view of a spring structure in which eight spring elements of the present invention shown in FIG. 1 are stacked. FIG. 5 is a side view of a filament winding mold used for molding the spring element shown in FIG.
第１図に示した様な波形リングバネ要素をフィラメント
ワインド法にて製作した。即ち第５図に示すような金型
の隙間に予めエポキシ樹脂を含浸した炭素繊維（東邦レ
ーヨン社製ベスファイト HTA−７−6000）を巻回し加
熱硬化後脱型したものである。本成形が非常に簡単であ
ることが確認された。リングの外径をφ130mm、内径を
φ100mmとしその厚さを2.8mmとして得られた物のバネ定
数を測定したところ、8kgf/mmであった。The corrugated ring spring element as shown in FIG.
Produced by the wind method. That is, the mold as shown in FIG.
Carbon fiber with epoxy resin pre-impregnated in the gap
-Yeon's Bethfight HTA-7-6000)
The mold was removed after heat curing. The main molding is very easy
It was confirmed that The outer diameter of the ring is φ130 mm and the inner diameter is
φ100 mm and its thickness 2.8 mm
When the number was measured, it was 8 kgf / mm.
これと同じバネ定数を従来のコイルスプリングでそのコ
イル中心径が波形リングバネと同じφ115mmとしたもの
で得ようとした場合とのバネの重量比較を行った。波形
リングバネ全体の重さはリング一個の重さとリング数の
積であり、コイルバネ全体の重さはコイル一巻の重さと
巻数の積であることより、重量比較は波形リングバネ一
個に対しコイルバネ一巻を比較した。使用材料が鉄、ガ
ラス繊維強化プラスチックス、炭素繊維強化プラスチッ
クスの３種類について、またコイルスプリングで中実の
場合と中空の場合も合わせて比較し、その結果を第１表
に示した。The weight of the spring was compared with the case where the same spring constant was obtained with a conventional coil spring whose center diameter was 115 mm, which is the same as that of the corrugated ring spring. The weight of the entire corrugated ring spring is the product of the weight of one ring and the number of rings, and the weight of the entire coil spring is the product of the weight of one coil and the number of turns. Were compared. Table 1 shows the results of a comparison between three types of materials used: iron, glass fiber reinforced plastics, and carbon fiber reinforced plastics, and also when the coil springs are solid and hollow.
繊維強化材の強化繊維はコイル素線に対して±45゜に配
向するものとし、中空のコイルはその肉厚が外径の1/10
の場合を示した。The reinforcing fibers of the fiber reinforcement shall be oriented at ± 45 ° to the coil wire, and the hollow coil has a wall thickness of 1/10 of the outer diameter.
The case is shown.
表中の重量は、コイルバネ一巻の場合の重さを示すもの
であるが、そのどれもが波形リングバネ１個の重さ25g
に対して重くなっている。波形リングバネが成形しやす
く且つ軽量化効果が大きいことが確認された。The weight in the table shows the weight of one coil spring, all of which weigh 25 g of one corrugated ring spring.
Is getting heavy against. It was confirmed that the corrugated ring spring is easy to mold and has a great effect of reducing the weight.
第１図は本発明のバネ要素を例示したものである。 第２図は第１図のバネ要素の平面図を示したものであ
る。 第３図は第１図のバネ要素の側面図を示したものであ
る。 第４図は第１図のバネ要素を８枚重ねたバネ構造の側面
図を示したものである。 第５図は第１図のバネ要素の成形に用いられるフィラメ
ントワインディング用金型の側面図を示したものであ
る。 第１〜３図において、１はバネ本体、２は稜部、３は谷
部、４はリングの内周端、５は外周端を示す。FIG. 1 illustrates the spring element of the present invention. FIG. 2 shows a plan view of the spring element of FIG. FIG. 3 shows a side view of the spring element of FIG. FIG. 4 shows a side view of a spring structure in which eight spring elements of FIG. 1 are stacked. FIG. 5 is a side view of a filament winding mold used for molding the spring element shown in FIG. 1 to 3, 1 is a spring body, 2 is a ridge, 3 is a valley, 4 is an inner peripheral end of a ring, and 5 is an outer peripheral end.
Claims (2)
材料からなるリング状物であって、リング面が複数の放
射状の陵部と谷部とからなる波形を形成し、当該リング
の仮想平面に垂直な荷重に対し周方向傾斜部が曲げ変形
することによってバネ機能を有する波形リングをバネ要
素とすることを特徴とする繰返し負荷を受けて使用され
る繊維強化複合材料製の波形リングバネ。1. A ring-shaped material made of a fiber-reinforced composite material in which reinforcing fibers are oriented in the circumferential direction, wherein the ring surface forms a corrugated shape composed of a plurality of radial ridges and valleys, and the ring is imaginary. A corrugated ring spring made of a fiber-reinforced composite material to be used under repeated load, characterized in that a corrugated ring having a spring function is used as a spring element by bending and deforming a circumferential inclined portion with respect to a load perpendicular to a plane.
（１）記載の波形リングバネ。2. The corrugated ring spring according to claim 1, wherein the reinforcing fibers are carbon fibers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62239949A JPH0730805B2 (en) | 1987-09-26 | 1987-09-26 | Corrugated ring spring made of fiber reinforced composite material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62239949A JPH0730805B2 (en) | 1987-09-26 | 1987-09-26 | Corrugated ring spring made of fiber reinforced composite material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6483938A JPS6483938A (en) | 1989-03-29 |
| JPH0730805B2 true JPH0730805B2 (en) | 1995-04-10 |
Family
ID=17052222
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62239949A Expired - Fee Related JPH0730805B2 (en) | 1987-09-26 | 1987-09-26 | Corrugated ring spring made of fiber reinforced composite material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0730805B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2956649B1 (en) * | 2010-02-24 | 2012-08-03 | Valois Sas | FLUID PRODUCT DISPENSING DEVICE AND FLUID PRODUCT DISPENSING DEVICE COMPRISING SUCH ORGAN. |
| JP5448970B2 (en) * | 2010-03-29 | 2014-03-19 | 矢崎総業株式会社 | Brake spring, gear, and instrument unit |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5234161A (en) * | 1975-09-10 | 1977-03-15 | Sumitomo Electric Ind Ltd | Coil spring of reinforced plastic material |
| JPS5537317Y2 (en) * | 1977-07-23 | 1980-09-02 |
-
1987
- 1987-09-26 JP JP62239949A patent/JPH0730805B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6483938A (en) | 1989-03-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |