JPS61125901A - Compound reinforced rim for bicycle - Google Patents
Compound reinforced rim for bicycleInfo
- Publication number
- JPS61125901A JPS61125901A JP24672484A JP24672484A JPS61125901A JP S61125901 A JPS61125901 A JP S61125901A JP 24672484 A JP24672484 A JP 24672484A JP 24672484 A JP24672484 A JP 24672484A JP S61125901 A JPS61125901 A JP S61125901A
- Authority
- JP
- Japan
- Prior art keywords
- fiber
- rim
- reinforced
- reinforced plastics
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B1/00—Spoked wheels; Spokes thereof
- B60B1/003—Spoked wheels; Spokes thereof specially adapted for bicycles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B21/00—Rims
- B60B21/02—Rims characterised by transverse section
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
Abstract
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、自転車用リムの改良に関するものである。[Detailed description of the invention] [Industrial application field] The present invention relates to improvements in bicycle rims.
主として、自転車用等に用いられるホイールは、タイヤ
、リム、スポーク、ニップルおよびハブの部品から構成
さｎる。ホイールには自転車、積載物０乗員の重量およ
び地面よりの衝撃が負荷し、特にタイヤかバンクして直
接リムが衝撃を受ける場合に大きな負荷がかかる。この
ような場合でも、ホイールの変形や破壊か起こらないよ
うに十分な剛性および強度が必要である。また、ホイー
ルは回転体であり、しかも大きな直径を有するため慣性
モーメントが大きく、走行中に変速すると大きな慣性抵
抗を生じる。Wheels used mainly for bicycles are composed of parts such as tires, rims, spokes, nipples, and hubs. The wheels are loaded with the weight of the bicycle, passengers and passengers, and impacts from the ground, and especially when the tires bank and the rims are directly impacted, a large load is applied. Even in such cases, sufficient rigidity and strength are required to prevent the wheel from deforming or breaking. Further, since the wheel is a rotating body and has a large diameter, the moment of inertia is large, and when the vehicle is shifted while the vehicle is running, a large inertial resistance is generated.
そのため、急那速を行うスポーツ車、競技車。Therefore, sports cars and competition cars that perform sudden speeds.
あるいは長距離を走行するサイクリング基などのホイー
ルは、重量の軽減が特に要求され、軽量であることが必
要である。In addition, wheels for cycling machines and the like that travel long distances are particularly required to be light in weight.
そのため、現在の如き構成のホイールが製作された１８
７０年代から現在に至るまで、ホイールの高強度化およ
び軽量化の検討が種々性われてきたが、鋼および軽合金
等では限界に達しつつあり、その性能はもはや飛躍的改
良か望めない状況にあると言える。Therefore, 18 wheels with the current configuration were manufactured.
From the 1970s to the present, various efforts have been made to improve the strength and weight of wheels, but steel and light alloys are reaching their limits, and it is no longer possible to expect dramatic improvements in their performance. I can say that there is.
また、最近になって実開昭５８−１５２７０１号にてリ
ムの全面が繊維強化プラスチックで補強されている自転
車用リムが提案されている。Furthermore, recently, a bicycle rim in which the entire surface of the rim is reinforced with fiber-reinforced plastic has been proposed in Japanese Utility Model Application Publication No. 58-152701.
〔発明が解決しようとする問題〕 ４
従来提案されている繊維補強プラスチックで全面補強し
たリムでは、重量の軽量化率が低く、又ブレーキ部分が
繊維強化プラスチックで覆われてい、予ため、耐摩耗性
が悪く、さヤにタイヤ交換の際に繊維強化プラスチック
の剥離が生じ鳥い等の問題があった。本発明は、上記従
来の問題点を解決し、軽量化率が高く、又ブレーキ部分
の耐摩耗性が高く、更にタイヤ交換時に繊細強化プラス
チックの剥離が生じ難い複合補強自転車用リムを提供す
るものである。[Problems to be solved by the invention] 4. The weight reduction rate of the conventionally proposed rims fully reinforced with fiber-reinforced plastic is low, and the brake part is covered with fiber-reinforced plastic, which makes it difficult to wear. This caused problems such as peeling of the fiber-reinforced plastic from the sheath when changing tires, resulting in scratches and other problems. The present invention solves the above-mentioned conventional problems and provides a composite reinforced bicycle rim that has a high rate of weight reduction, has high wear resistance in the brake part, and is less likely to cause peeling of delicate reinforced plastic when changing tires. It is.
本発明は、薄肉金属リムの円周部を繊維強化プラスチッ
クで補強した複合補強自転車用リムである。The present invention is a composite reinforced bicycle rim in which the circumference of a thin metal rim is reinforced with fiber-reinforced plastic.
以下、図面に従って、本発明を説明する。The present invention will be described below with reference to the drawings.
第１図は、本発明にかかわる典型的なリムの断面図を示
したものであり、１は金属リム、２は繊維強化プラスチ
ックである。又、目標とする性能を発揮するには、繊維
強化プラスチック２の繊維配向角（θ）が９０’ で
あるのが好ましいか、第１図かられかるように、リムの
円周部は湾曲しているので補強する際、円周差によって
、補強材の長さが異なるため、賦形性が若干困難である
。従って、第４図で示したように、繊維配向角（θ）ｔ
−車軸３に対して７０°〜８５°にすることによって、
補強材の強度及び弾性車をほとんど損うことなく賦形を
簡単に行うことが出来る。FIG. 1 shows a cross-sectional view of a typical rim according to the present invention, in which 1 is a metal rim and 2 is a fiber-reinforced plastic rim. In addition, in order to achieve the target performance, it is preferable that the fiber orientation angle (θ) of the fiber reinforced plastic 2 is 90', or the circumferential part of the rim is curved as shown in Fig. 1. Therefore, when reinforcing the reinforcing material, the length of the reinforcing material differs depending on the difference in circumference, making it somewhat difficult to form it. Therefore, as shown in FIG. 4, the fiber orientation angle (θ)t
- by 70° to 85° to the axle 3;
The reinforcing material can be easily shaped with almost no loss in strength or elasticity.
本発明を実施する際に用いる補強用繊維としては、炭素
繊維、シリコンカーバイド繊維、芳香族ポリアミド繊維
、ホウ素繊維、チタン酸カリウム繊維、ガラス繊維など
を挙げごことが出来るか、特に炭素−維を主体とするも
のが好ましい。これら補強繊維は、マトリックスに含浸
した状態で用いるのが良く、無機マ） ＋３ツクス
Ａ及び有機マトリックスのいずれをも用いることが出
来るが、本発明のリムの成形性、軽量化などの目的を十
分達成することを考慮するならば、エポキシ樹脂、不飽
和ポリ、エステル樹脂、・、ビニルエステル樹脂、ポリ
アミド樹脂、フェノール樹脂などの熱硬化性樹脂、ティ
９ン、ポリカーボネート、ポリブチレンテレフタレート
、ポリアセタール、ポリスルホン等の熱可塑性樹脂を用
いるのが好ましい。Examples of reinforcing fibers used in carrying out the present invention include carbon fibers, silicon carbide fibers, aromatic polyamide fibers, boron fibers, potassium titanate fibers, and glass fibers. It is preferable that it be the main subject. These reinforcing fibers are best used in a state impregnated with a matrix;
Either A or an organic matrix can be used, but in order to fully achieve the objectives of moldability and weight reduction of the rim of the present invention, epoxy resin, unsaturated poly, ester resin, etc. It is preferable to use thermosetting resins such as vinyl ester resins, polyamide resins, and phenol resins, and thermoplastic resins such as polycarbonate, polybutylene terephthalate, polyacetal, and polysulfone.
以下、本発明のリムの底形方法について説明する。先ず
薄肉金属リムの表、面処理を行い、その後、プリプレグ
を金属に貼シ付け、硬化成形する。尚、表面処理の方法
としては１．サンドペーパーで研摩するとか、サンドブ
ラストなどで接着層の表面積を増し、接着性を良くした
後、脱脂を行いプライマー処理を行う。又、プリプにグ
の貼シ付は方法は、第４図で示す通シ、繊維配向角（θ
）を車軸方向に対して７０°〜９０°。Hereinafter, the rim bottom shape method of the present invention will be explained. First, the surface of the thin metal rim is treated, and then the prepreg is pasted onto the metal and hardened and molded. In addition, as a method of surface treatment, 1. After increasing the surface area of the adhesive layer by sandpapering or sandblasting to improve adhesion, degrease it and apply a primer treatment. In addition, the method for attaching the prep to the fiber orientation angle (θ) is as follows:
) is 70° to 90° with respect to the axle direction.
好ましくは７５’〜８５°のプ５リプＶグを約（Ｌ６繻
厚で、リム円周部に貼シ付ける。Preferably, a 75' to 85° prism is applied to the circumference of the rim with a thickness of approximately (L6).
成形用型は、金型、ゴｌ型、樹脂型等が適宜使用される
。又、接着と成形とを同時に行わず、輪状に成形したＲ
維強化プ・ラスチックを接着剤でリムの円周部に接着し
てもよい。硬化方法としては、ゴム型の上にテーピング
し、硬化炉で硬化する方法や、オートクレーブを用いた
）くギング成形による方法、又は金型によるブース成形
など糧々、の方法が適用可能である。As the molding mold, a metal mold, a mold, a resin mold, etc. are used as appropriate. In addition, the bonding and molding were not performed at the same time, and the R
The fiber-reinforced plastic may be adhered to the circumference of the rim with an adhesive. As a curing method, various methods can be applied, such as taping on a rubber mold and curing in a curing oven, kuging molding (using an autoclave), or booth molding with a metal mold.
又第２図、第５図で示すように金属リム１の形状を変え
ることによって、補強材の繊維配向角（Ｉ）か９０°で
も容品に賦形することが可能となる。Furthermore, by changing the shape of the metal rim 1 as shown in FIGS. 2 and 5, it is possible to shape the product into a product even if the fiber orientation angle (I) of the reinforcing material is 90°.
〔実施例〕 −
以下、実施例にて本発明を更に具体的に説明する。実施
例中、剛性テストは第５図で示すように、複合補強自転
車用リム４を立てて置き、荷重（Ｗ） Ｓ ＯＩＣ９を
２分間加えた後、マイクロメーター５で永久変形量を測
定した。[Example] - Hereinafter, the present invention will be explained in more detail with reference to Examples. In the example, the rigidity test was performed by standing the composite reinforced bicycle rim 4 upright, applying a load (W) SOIC9 for 2 minutes, and then measuring the amount of permanent deformation with a micrometer 5, as shown in FIG.
実施例１
金属リムとして第１図に示す形状のＱ、８ｍ厚のアルミ
合金製チューブラ一式リム１を用い、又、繊維補強プラ
スチックとして第４図で示す如く、繊維配向角（θ）カ
８０°で厚さＣＬ１５１ｍｌｌ１％幅１８咽のエポキシ
樹脂を含浸した炭素繊維一方向ブリプレグテープを用い
て、先ずアルミ合金製リム１を◆１２０のサンドブラス
トで処理した後、アセトン脱脂を行い、これにスコッチ
ウェルドｓｗ−ｚｚ１ｎ（住人スリーエム社、商標）を
ブライマーとして約１００ｐ塗布い久に炭素繊維プリプ
レグテープを４周分アルミ金属製リム１の円周部に貼シ
付け、この積層体にゴムＭＪ、ｔ−あて、これを収縮テ
ープで締め付けた後、硬化炉中１５０℃で１時間加熱硬
化させて複合補強リムを得た。Example 1 A complete aluminum alloy tubular rim 1 with a shape Q shown in FIG. 1 and 8 m thick was used as the metal rim, and the fiber orientation angle (θ) was 80° as shown in FIG. 4 as the fiber-reinforced plastic. First, the aluminum alloy rim 1 was sandblasted with ◆120 using carbon fiber unidirectional brippreg tape impregnated with epoxy resin with a thickness of 151ml and a width of 1%, and then degreased with acetone, and then coated with Scotchweld. Approximately 100p of sw-zz1n (trademark of Jujutsu 3M Co., Ltd.) was applied as a brimer, then four rounds of carbon fiber prepreg tape was pasted on the circumference of the aluminum metal rim 1, and rubber MJ, t- was applied to this laminate. This was then tightened with shrink tape, and then heated and cured in a curing oven at 150° C. for 1 hour to obtain a composite reinforced rim.
この複合補強リムは、炭素繊維の一方向テープで補強さ
れているために、重量が２８ｏｆと軽量でありながら、
剛性テストにおいて第１表に示す如く、５０に５７−２
分間荷重後の永久変形量が大幅に改良された。又、ブレ
ーキ部分か金属の１まであるため、耐摩耗性に優れかつ
タイヤ交換の際、繊維強化プラスチックの剥離か生じな
かった。This composite reinforced rim is reinforced with carbon fiber unidirectional tape, so it is lightweight at 28 oz.
In the stiffness test, as shown in Table 1, 50 to 57-2
The amount of permanent deformation after a minute load was significantly improved. In addition, since the brake part is made of metal, it has excellent wear resistance and the fiber-reinforced plastic does not peel off when changing tires.
第 １ 表
〔発明の効果〕
上述の如く構成された本発明のリムの重量が大幅に軽量
化されるとともに、ブレーキ部分が金属のままであるか
ら、耐摩耗性に優れ、さらにタイヤ交換の際、繊維強化
プラスチックの剥離が生じ難い等の格別の効果を奏する
ものであるＯTable 1 [Effects of the Invention] The weight of the rim of the present invention constructed as described above is significantly reduced, and since the brake part is still made of metal, it has excellent wear resistance and is easy to replace when changing tires. , which has exceptional effects such as preventing fiber-reinforced plastic from peeling off.
第１〜３図は、本発明にかかわる複合補強自転車用リム
の例を示す各断面図、第４図は補強繊維の配向角の説明
図、第５図は、リムの剛性テストの方法の説明図である
。
１・・・・・金属製リム
２・・・・・一方向繊維強化プラスチック３・・・・・
車 軸
４・・・・・複合補強自転車用リム
５・・・・・マイクロメ−１−
θ・・・・・一方向ｍａ配向角
Ｗ・・・・・荷 重
稟２圀
ネ３９Figures 1 to 3 are cross-sectional views showing an example of a composite reinforced bicycle rim according to the present invention, Figure 4 is an illustration of orientation angles of reinforcing fibers, and Figure 5 is an explanation of a method for testing rim rigidity. It is a diagram. 1...Metal rim 2...Unidirectional fiber reinforced plastic 3...
Axle 4...Composite reinforced bicycle rim 5...Micrometer 1- θ...One-way ma orientation angle W...Load 2 angles 39
Claims (1)
強したことを特徴とする複合補強自転車用リム ２、繊維強化プラスチックの繊維配向角度がリムの軸方
向に対して、７０°〜９０°である特許請求の範囲第１
項記載のリム ３、繊維強化プラスチックの繊維が炭素繊維である特許
請求の範囲第１項記載のリム[Scope of Claims] 1. Composite reinforced bicycle rim characterized in that the circumferential portion of a thin metal rim is reinforced with fiber-reinforced plastic.2, the fiber orientation angle of the fiber-reinforced plastic is relative to the axial direction of the rim. Claim 1 which is between 70° and 90°
The rim 3 according to claim 1, the rim according to claim 1, wherein the fibers of the fiber-reinforced plastic are carbon fibers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24672484A JPS61125901A (en) | 1984-11-21 | 1984-11-21 | Compound reinforced rim for bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24672484A JPS61125901A (en) | 1984-11-21 | 1984-11-21 | Compound reinforced rim for bicycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61125901A true JPS61125901A (en) | 1986-06-13 |
Family
ID=17152703
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24672484A Pending JPS61125901A (en) | 1984-11-21 | 1984-11-21 | Compound reinforced rim for bicycle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61125901A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7331639B2 (en) | 2005-11-04 | 2008-02-19 | Shimano Inc. | Bicycle rim |
| US7350877B1 (en) | 2006-11-03 | 2008-04-01 | Shimano Inc. | Bicycle rim |
| US7377595B1 (en) | 2007-02-28 | 2008-05-27 | Shimano Inc. | Bicycle rim |
| US7464994B2 (en) | 2006-03-03 | 2008-12-16 | Shimano Inc. | Bicycle rim reinforced with a continuously extending resin material |
| JP2014122031A (en) * | 2012-12-21 | 2014-07-03 | Campagnolo Spa | Component of bicycle including aluminum body and composite material body, and production method of component |
| DE102007052674B4 (en) * | 2006-11-03 | 2017-05-18 | Shimano Inc. | bicycle rim |
| TWI615290B (en) * | 2016-08-30 | 2018-02-21 | 亞獵士科技股份有限公司 | Carbon fibre wheel |
| DE102018101739A1 (en) * | 2018-01-26 | 2019-08-01 | Shimano Components (Malaysia) Sdn. Bhd. | bicycle rim |
-
1984
- 1984-11-21 JP JP24672484A patent/JPS61125901A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7331639B2 (en) | 2005-11-04 | 2008-02-19 | Shimano Inc. | Bicycle rim |
| US7464994B2 (en) | 2006-03-03 | 2008-12-16 | Shimano Inc. | Bicycle rim reinforced with a continuously extending resin material |
| US7350877B1 (en) | 2006-11-03 | 2008-04-01 | Shimano Inc. | Bicycle rim |
| US7578563B2 (en) | 2006-11-03 | 2009-08-25 | Shimano Inc. | Reinforced bicycle rim |
| DE102007052674B4 (en) * | 2006-11-03 | 2017-05-18 | Shimano Inc. | bicycle rim |
| US7377595B1 (en) | 2007-02-28 | 2008-05-27 | Shimano Inc. | Bicycle rim |
| JP2014122031A (en) * | 2012-12-21 | 2014-07-03 | Campagnolo Spa | Component of bicycle including aluminum body and composite material body, and production method of component |
| TWI615290B (en) * | 2016-08-30 | 2018-02-21 | 亞獵士科技股份有限公司 | Carbon fibre wheel |
| DE102018101739A1 (en) * | 2018-01-26 | 2019-08-01 | Shimano Components (Malaysia) Sdn. Bhd. | bicycle rim |
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