JPS6212368B2 - - Google Patents
Info
- Publication number
- JPS6212368B2 JPS6212368B2 JP56189763A JP18976381A JPS6212368B2 JP S6212368 B2 JPS6212368 B2 JP S6212368B2 JP 56189763 A JP56189763 A JP 56189763A JP 18976381 A JP18976381 A JP 18976381A JP S6212368 B2 JPS6212368 B2 JP S6212368B2
- Authority
- JP
- Japan
- Prior art keywords
- rocker arm
- carbon fiber
- rocker
- cam
- laminated
- 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
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 22
- 239000004917 carbon fiber Substances 0.000 claims description 22
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 21
- 229910052751 metal Inorganic materials 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 8
- 229920003002 synthetic resin Polymers 0.000 claims description 5
- 239000000057 synthetic resin Substances 0.000 claims description 5
- 239000004753 textile Substances 0.000 claims 3
- 239000004744 fabric Substances 0.000 description 16
- 229910001018 Cast iron Inorganic materials 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 5
- 229920005989 resin Polymers 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 239000004918 carbon fiber reinforced polymer Substances 0.000 description 3
- 239000003822 epoxy resin Substances 0.000 description 3
- 238000010030 laminating Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229920000647 polyepoxide Polymers 0.000 description 3
- 239000002759 woven fabric Substances 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- -1 Alternatively Polymers 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 1
- 229920006015 heat resistant resin Polymers 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 229920002492 poly(sulfone) Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 239000009719 polyimide resin Substances 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 229920006337 unsaturated polyester resin Polymers 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/12—Transmitting gear between valve drive and valve
- F01L1/18—Rocking arms or levers
- F01L1/181—Centre pivot rocking arms
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L2301/00—Using particular materials
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2225/00—Synthetic polymers, e.g. plastics; Rubber
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2253/00—Other material characteristics; Treatment of material
- F05C2253/04—Composite, e.g. fibre-reinforced
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2253/00—Other material characteristics; Treatment of material
- F05C2253/16—Fibres
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
- Moulding By Coating Moulds (AREA)
Description
本発明は、特に高速回転エンジンに用いて優れ
た性能を発揮する軽量化ロツカーアームに関す
る。
近年、燃費効率の向上を目的として自動車の軽
量化が課題となつており、この観点から部品であ
るロツカーアームについても材料を従来の鋳鉄か
ら炭素繊維強化合成樹脂（CFRP）に代えること
が検討され、すでに本発明者等の一部もCFRP製
の軽量化されたロツカーアームを提案している。
（実開昭56−103610号公報）
ロツカーアームは、バルブ側部、カム側部及び
ロツカーシヤフト用孔部を有し、バルブ側部には
エンジンのバルブを押圧するアジヤステイングス
クリユーを取付ける部分があり、カム側部にはカ
ム接面がある。（第１図参照）ロツカーアームで
は使用時応力がロツカーシヤフトを支点としてア
ジヤステイングスクリユー取付部とカム接面に負
荷される。前記の提案考案においては、一方向プ
リプレグや織物等のシート状炭素繊維集合体が用
いられ、そのシート面が応力の方向に対し垂直、
つまりロツカーシヤフト軸に対し平行になるよう
積層されている。
このロツカーアームは、所要の強度を具備し何
よりも軽量化の目的を果たし、一般にエンジンに
使用されて有用なものである。
ところで、本発明者等のその後の検討による
と、前記のように積層された提案考案のロツカー
アームは、これを特に負荷の大きい高速回転のエ
ンジンに用いる場合には、時に積層面にクラツク
を生ずることがあり、強度が必ずしも十分でない
ことが判明した。
そして、この問題はプリプレグの積層に際し積
層面内で繊維の配向角度を変えたり、また、炭素
繊維自体の強度や樹脂に対する炭素繊維含有比率
を変えてみても解決することができなかつた。そ
こで本発明者等は引続き検討を行なつたところ、
合成樹脂を含浸した炭素繊維織物をその織物面が
ロツカーシヤフトの軸方向に対し直交するよう積
層して得たロツカーアームが高速回転エンジンに
使用して有効であることを見出し本発明に至つ
た。
すなわち、本発明は、炭素繊維織物強化合成樹
脂製エンジン用ロツカーアームであつて、炭素繊
維織物面がロツカーアームのシヤフト軸方向に対
し直交するよう積層されてなることを特徴とする
ものである。
本発明のロツカーアームは、鋳鉄製のものに比
し格段に軽量化され、機械的特性も優れており、
エンジン性能を著しく向上させることができる。
また同じCFRP製であつても炭素繊維シート面が
負荷の方向に垂直に積層されたものと異なり、本
発明のロツカーアームは高速回転エンジンに用い
てクラツクを生ずることがなく極めて有用なもの
である。
このような本発明の優れた効果は、織物面をロ
ツカーアームのシヤフト軸方向に対し直交するよ
うに積層するという特許請求の範囲に記載された
構成によりもたらされるもので、それは、後掲実
施例における本発明品の優れた性能によつて、ま
た、比較的における比較品及び第１表における従
来品との性能対比によつて裏付けられている（こ
れらを括めた第１表参照）。
本発明のロツカーアームは例えば次のようにし
て製造することができる。炭素繊維織物に合成樹
脂を含浸させたプリプレグを所定の形状に切断
し、これをロツカーシヤフトの軸方向に対し直交
するように積層し加熱加圧して成形する。本発明
における炭素繊維織物は、通常たて糸、よこ糸と
も炭素繊維ストランドを用いたものであり、その
組織は平織、朱子織等である。よこ糸又はたて糸
の一方にガラス繊維を用いた混織織物であつても
よい。
本発明におけるマトリツクスとしての合成樹脂
は、この種複合材に通常使用されるものでよく、
エポキシ樹脂、ポリイミド樹脂、フエノール樹
脂、不飽和ポリエステル樹脂等の熱硬化性樹脂、
又はポリスルホン樹脂等の熱可塑性樹脂が挙げら
れる。特に耐熱性の樹脂が好ましい。
本発明のロツカーアームの一例を第１図で示
す。第１図において、１はロツカーアーム側面、
２はロツカーアーム上下面、３は炭素繊維、４は
積層された炭素繊維織物、５はアジヤステイング
スクリユー取付用ねじ孔、６はカム接面、７はロ
ツカーシヤフト用孔である。
本発明においては炭素繊維織物面がロツカーシ
ヤフトの軸に対し直交するよう積層されているこ
とが必要である。織物の面内では炭素繊維３はど
のように配向してもよいが、好ましい例は、織物
の炭素繊維が第１図におけるＹ方向に配列したも
のとY′方向に配列したものとを交互にすること
である。
本発明のロツカーアームにおいては、そのカム
側部、バルブ側部、ロツカーシヤフト用孔部のい
ずれか、又はすべてに金属部材をインサートする
ことができる。
第２図はその一例を示したものである。
ロツカーアームでは、ロツカーシヤフトを支点
としてカムとの接点（カムパツド面）及びアジヤ
ステイングスクリユー取付部に負荷がかかり曲げ
応力及び剪断応力が作用し、特にカムとの接点で
は高い負荷が作用し、しかも高速な運動が行なわ
れるため、カムパツド（カム接面インサート部
材）としては硬度および耐摩耗性に優れた鋳鉄等
の金属部材を用いることが望ましい。更にバルブ
側のアジヤステイングスクリユー取付部はネジ切
りが必要なため、この部分にアルミニウム材等を
インサートした後、穿孔しネジ切りを行なつても
よい。またロツカーアームは作動時に高い面圧の
かかつた状態でロツカーシヤフトのまわりを高速
で揺動するためPV値が材料の限界PV値を越える
ことを考慮して、この接触面に高いPV値の金属
ブツシユをインサートすることもできる。
これらの金属部材は、炭素繊維織物プリプレグ
を積層する時にセツトし金型に入れ加熱加圧して
樹脂の硬化と同時にインサートすることができ
る。
次に本発明を実施例によつて説明する。以下の
実施例、比較例における製品性能は後記測定方法
によつて得られたものである。
実施例 １
炭素繊維朱子織物（380ｇ／m2）−エポキシ樹脂
プリプレグ（東邦ベスロン社3120−Ｑ−1101）を
ロツカーシヤフトに直交する断面形状に合わせて
切断した。このプリプレグ61枚を織物面がロツカ
ーシヤフト軸に直交する如く積層し、金型に入れ
ホツトプレスにセツトした。硬化は130℃で60分
間接触圧でプレキユアした後、続いて180℃まで
昇温し120分間７Kg／cm2の圧力下で行なつた。冷
却後金型から脱型し、ロツカーシヤフト用孔をド
リルで穿ち第１図の如きロツカーアームを得た。
このものについて性能を調べた。その結果は第
１表のとおりであり、これによれば従来品（鋳鉄
製）に比し重量が半分以下であるのに、強度は２
倍以上であり、非常に優れた性能であることがわ
かる。
実施例 ２
炭素繊維平織物（200ｇ／m2）−エポキシ樹脂プ
リプレグ（東邦ベスロン株式会社3101−Ｑ−
1101）をロツカーシヤフト軸に直交する断面形状
に合わせて切断し、更にロツカーシヤフトの孔の
位置に、その孔より半径が３mm大きい孔を穿つ
た。このようにして切断されたプリプレグシート
116枚を織物面がロツカーシヤフト軸に対して直
交する如く積層し、カム接面を一部切断して鋳鉄
製カムパツドをインサートし、バルブ側部のアジ
ヤステイングスクリユー取付部に直径16mmの孔を
穿ち、そこにネジ溝をつけた外径16mmのアルミニ
ウム製棒を、更にロツカーシヤフト用孔にアルミ
ニウムパイプを挿入し、金型に入れ、実施例１と
同じ条件で硬化し、冷却後脱型した。
かくして得られたロツカーアームは第１表に記
載の性能を示し、これによれば重量は従来品（鋳
鉄製）の半分近くまで軽量化され、更に強度は従
来品以上であり、本製品が優れた性能を有するこ
とがわかる。
比較例
実施例１と同じ炭素繊維朱子織物プリプレグを
たて糸がバルブ側部の端からカム側部の端に連続
する如く、ロツカーアームの上下面の形状に合わ
せて切断し積層した。尚この場合は場所によつて
厚みが異なるため、所定の厚みになるようにプリ
プレグの形状を徐々に変えて切断し、積層した時
に急激な厚み変化が生じないように積層した。こ
れを金型に入れ実施例１と同じ条件で硬化し冷却
後金型から脱型し、続いてロツカーシヤフトの入
る孔をドリルで穿ち、ロツカーアームを製作し
た。
本比較品の性能は第１表に示すとおりであり、
これによれば、比較品は本発明品（実施例）に比
し強度において著しく劣ることがわかる。
The present invention relates to a lightweight rocker arm that exhibits excellent performance especially when used in high-speed rotating engines. In recent years, reducing the weight of automobiles has become an issue in order to improve fuel efficiency, and from this perspective, consideration has been given to changing the material of the Rotsuker arm, which is a component, from conventional cast iron to carbon fiber reinforced synthetic resin (CFRP). Some of the present inventors have already proposed a lightweight Rocker arm made of CFRP.
(Japanese Utility Model Publication No. 56-103610) The rocker arm has a valve side part, a cam side part, and a hole part for the rocker shaft, and the valve side has a part for attaching an adjusting screw that presses the engine valve. There is a cam contact surface on the side of the cam. (See Figure 1) When the rocker arm is in use, stress is applied to the adjusting screw mounting portion and the cam contact surface using the rocker shaft as a fulcrum. In the proposed idea mentioned above, a sheet-like carbon fiber aggregate such as unidirectional prepreg or woven fabric is used, and the sheet surface is perpendicular to the direction of stress.
In other words, they are stacked parallel to the rocker shaft axis. This rocker arm has the required strength and, above all, serves the purpose of reducing weight, and is generally useful for use in engines. By the way, according to subsequent studies by the present inventors, the rocker arm of the proposed design, which is laminated as described above, sometimes causes cracks in the laminated surface when used in a high-speed rotating engine with a particularly large load. It was found that the strength was not necessarily sufficient. This problem could not be solved even by changing the orientation angle of the fibers within the laminated plane when laminating the prepregs, or by changing the strength of the carbon fibers themselves or the carbon fiber content ratio relative to the resin. Therefore, the inventors continued to study and found that
The inventors have discovered that a rocker arm obtained by laminating synthetic resin-impregnated carbon fiber fabrics so that the fabric surfaces are perpendicular to the axial direction of the rocker shaft is effective for use in high-speed rotating engines, leading to the present invention. That is, the present invention is a rocker arm for an engine made of synthetic resin reinforced with carbon fiber fabric, characterized in that the carbon fiber fabric surfaces are laminated so as to be orthogonal to the shaft axis direction of the rocker arm. The Rotsuker arm of the present invention is significantly lighter in weight than those made of cast iron, and has excellent mechanical properties.
Engine performance can be significantly improved.
Also, unlike those made of CFRP but with carbon fiber sheet surfaces stacked perpendicular to the direction of load, the rocker arm of the present invention is extremely useful for use in high-speed engines without causing cracks. Such excellent effects of the present invention are brought about by the structure described in the claims, in which the fabric surfaces are laminated perpendicularly to the shaft axis direction of the rocker arm, and this is achieved by the structure described in the following embodiments. This is supported by the excellent performance of the product of the present invention, as well as the performance comparison with the comparative product and the conventional product in Table 1 (see Table 1 summarizing these). The rocker arm of the present invention can be manufactured, for example, as follows. A prepreg made by impregnating a carbon fiber fabric with a synthetic resin is cut into a predetermined shape, and the prepreg is laminated perpendicularly to the axial direction of the rocker shaft and molded by heating and pressing. The carbon fiber fabric in the present invention usually uses carbon fiber strands for both warp and weft, and its structure is plain weave, satin weave, etc. It may be a blended fabric using glass fiber in either the weft or the warp. The synthetic resin used as the matrix in the present invention may be one commonly used for this type of composite material,
Thermosetting resins such as epoxy resins, polyimide resins, phenolic resins, and unsaturated polyester resins,
Alternatively, thermoplastic resins such as polysulfone resins may be used. In particular, heat-resistant resins are preferred. An example of the rocker arm of the present invention is shown in FIG. In Figure 1, 1 is the side of the Rocker arm,
2 is the upper and lower surfaces of the rocker arm, 3 is carbon fiber, 4 is a laminated carbon fiber fabric, 5 is a screw hole for attaching an adjusting screw, 6 is a cam contact surface, and 7 is a hole for the rocker shaft. In the present invention, it is necessary that the carbon fiber fabric surfaces are laminated so as to be perpendicular to the axis of the rocker shaft. The carbon fibers 3 may be oriented in any direction within the plane of the fabric, but a preferred example is to alternately arrange the carbon fibers in the Y direction and the Y' direction in FIG. It is to be. In the rocker arm of the present invention, a metal member can be inserted into any or all of the cam side, valve side, and rocker shaft hole. FIG. 2 shows an example of this. With the Rotsuker arm, the Rotsuker shaft is used as a fulcrum, and loads are applied to the contact point with the cam (cam pad surface) and the attachment part of the adjusting screw, resulting in bending stress and shear stress.In particular, a high load acts on the contact point with the cam, and at high speed. Since movement is performed, it is desirable to use a metal member such as cast iron, which has excellent hardness and wear resistance, as the cam pad (cam contact surface insert member). Furthermore, since the adjusting screw mounting portion on the valve side requires threading, an aluminum material or the like may be inserted into this portion, and then a hole may be drilled and threaded. In addition, since the Rocker arm swings around the Rocker shaft at high speed under high surface pressure during operation, the PV value exceeds the material's limit PV value, so a metal bush with a high PV value is installed on this contact surface. It can also be inserted. These metal members can be set when laminating carbon fiber fabric prepregs, placed in a mold, heated and pressurized, and inserted at the same time as the resin is cured. Next, the present invention will be explained with reference to examples. Product performance in the following Examples and Comparative Examples was obtained by the measurement method described later. Example 1 A carbon fiber satin fabric (380 g/m 2 )-epoxy resin prepreg (Toho Bethlon Co., Ltd. 3120-Q-1101) was cut into a cross-sectional shape perpendicular to the rocker shaft. Sixty-one sheets of the prepreg were stacked so that the woven fabric surface was perpendicular to the rocker shaft axis, placed in a mold, and set in a hot press. Curing was carried out by pre-curing at 130°C for 60 minutes under contact pressure, followed by raising the temperature to 180°C and carrying out under a pressure of 7 kg/cm 2 for 120 minutes. After cooling, it was removed from the mold, and a hole for the rocker shaft was drilled to obtain a rocker arm as shown in FIG. I investigated the performance of this product. The results are shown in Table 1, which shows that although the weight is less than half that of the conventional product (made of cast iron), the strength is 2.
It is more than twice as high as that of the previous model, which shows that the performance is extremely excellent. Example 2 Carbon fiber plain woven fabric (200 g/m 2 ) - Epoxy resin prepreg (Toho Veslon Co., Ltd. 3101-Q-
1101) was cut to match the cross-sectional shape perpendicular to the rocker shaft axis, and a hole with a radius 3 mm larger than the hole was drilled at the position of the rocker shaft hole. Prepreg sheet cut in this way
116 sheets were stacked so that the fabric side was perpendicular to the rocker shaft axis, a part of the cam contact surface was cut, a cast iron cam pad was inserted, and a 16 mm diameter hole was drilled in the adjusting screw mounting part on the side of the valve. An aluminum rod with an outer diameter of 16 mm with a thread groove thereon was further inserted into a rocker shaft hole, and an aluminum pipe was inserted into a mold, hardened under the same conditions as in Example 1, and demolded after cooling. The thus obtained Rotsuker arm exhibited the performance listed in Table 1, which shows that the weight was reduced to nearly half that of the conventional product (made of cast iron), and the strength was greater than that of the conventional product, indicating that this product is superior. It can be seen that it has good performance. Comparative Example The same carbon fiber satin fabric prepreg as in Example 1 was cut and laminated to match the shape of the upper and lower surfaces of the rocker arm so that the warp threads continued from the end of the valve side part to the end of the cam side part. In this case, since the thickness varies depending on the location, the shapes of the prepregs were gradually changed and cut to obtain a predetermined thickness, and the prepregs were laminated to avoid sudden changes in thickness when laminated. This was put into a mold, hardened under the same conditions as in Example 1, cooled, and then removed from the mold. Subsequently, a hole for the rocker shaft was drilled to produce a rocker arm. The performance of this comparative product is as shown in Table 1.
According to this, it can be seen that the comparative product is significantly inferior in strength to the product of the present invention (Example).
【表】
第１表の試験は第３図、第４図に示す負荷条件
で行なつた。第３図は負荷時の変位を測定する方
法を示したものであり、固定軸１１，１２により
ロツカーアームを固定し、Ａ点に圧子１３により
400Kgの負荷を行なつた時のロツカーアームの変
位をダイヤルゲージ１４によつて測定したもので
ある。
L1は27mmとした。また第４図は破壊荷重を測
定する方法を示したものであり、ロツカーアーム
を固定軸１１，１２により固定しＢ点に圧子１３
にて徐々に荷重を加え、ロツカーアームが破壊し
た時の荷重を測定する。L2は35mmとした。[Table] The tests in Table 1 were conducted under the load conditions shown in Figures 3 and 4. Figure 3 shows a method for measuring displacement under load, in which the rocker arm is fixed with fixed shafts 11 and 12, and an indenter 13 is placed at point A.
The displacement of the rocker arm was measured using the dial gauge 14 when a load of 400 kg was applied. L 1 was set to 27 mm. Fig. 4 shows a method for measuring the breaking load, in which the rocker arm is fixed by fixed shafts 11 and 12, and an indenter 13 is placed at point B.
Gradually apply a load at , and measure the load when the Rocker arm breaks. L2 was set to 35mm.
第１図、第２図は本発明のロツカーアームの実
施態様の一例を示すものである。第３図、第４図
は第１表に示した値の測定方法を示すものであ
る。
１：ロツカーアームの側面、２：上下面、３：
炭素繊維、４：積層された炭素繊維織物、５：ア
ジヤステイングスクリユー取付用ねじ孔、６：カ
ム接面、７：ロツカーシヤフト用孔、８：金属パ
ツド、９：アジヤステイングスクリユー用金属イ
ンサート、１０：ロツカーシヤフト用金属ブツシ
ユ、１１，１２：固定軸、１３：圧子、１４：ダ
イヤルゲージ。
1 and 2 show an example of an embodiment of the rocker arm of the present invention. FIGS. 3 and 4 show a method for measuring the values shown in Table 1. 1: Side of the Rotsuker arm, 2: Upper and lower surfaces, 3:
Carbon fiber, 4: Laminated carbon fiber fabric, 5: Screw hole for attaching the adjusting screw, 6: Cam contact surface, 7: Hole for rocker shaft, 8: Metal pad, 9: Metal insert for adjusting screw, 10: Metal bush for rocker shaft, 11, 12: Fixed shaft, 13: Indenter, 14: Dial gauge.
Claims (1)
シヤフト軸方向に対し直交するように積層されて
なる炭素繊維織物強化合成樹脂製エンジン用ロツ
カーアーム。 ２ ロツカーアームにおいてカム側部のカム接
面、バルブ側部のアジヤステイングスクリユー取
付部、ロツカーシヤフト用の孔部に金属部材をイ
ンサートしてなる特許請求の範囲１のロツカーア
ーム。[Scope of Claims] 1. A rocker arm for an engine made of a synthetic resin reinforced with carbon fiber textiles, which is made of carbon fiber textiles laminated such that the textile surfaces are perpendicular to the shaft axis direction of the rocker arm. 2. The rocker arm according to claim 1, wherein metal members are inserted into the cam contact surface on the cam side, the adjusting screw mounting portion on the valve side, and the hole for the rocker shaft.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56189763A JPS5891315A (en) | 1981-11-26 | 1981-11-26 | Locker arm for engine |
| FR8219782A FR2522724B1 (en) | 1981-11-26 | 1982-11-25 | FIBER REINFORCED PLASTIC MATERIAL AND METHOD FOR MANUFACTURING THIS MATERIAL |
| US06/444,659 US4438738A (en) | 1981-11-26 | 1982-11-26 | Rocker arm and process for producing the same |
| GB08233819A GB2112897B (en) | 1981-11-26 | 1982-11-26 | Rocker arm and process for producing same |
| DE19823243897 DE3243897A1 (en) | 1981-11-26 | 1982-11-26 | ROCKER LEVER AND METHOD FOR THE PRODUCTION THEREOF |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56189763A JPS5891315A (en) | 1981-11-26 | 1981-11-26 | Locker arm for engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5891315A JPS5891315A (en) | 1983-05-31 |
| JPS6212368B2 true JPS6212368B2 (en) | 1987-03-18 |
Family
ID=16246767
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56189763A Granted JPS5891315A (en) | 1981-11-26 | 1981-11-26 | Locker arm for engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5891315A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6049204U (en) * | 1983-09-14 | 1985-04-06 | エヌオーケー株式会社 | Rotzker arm |
| JPS6052318U (en) * | 1983-09-16 | 1985-04-12 | エヌオーケー株式会社 | Rotzker arm |
| JPH0199905U (en) * | 1987-12-24 | 1989-07-05 | ||
| JP4408005B2 (en) * | 2001-01-31 | 2010-02-03 | 富士重工業株式会社 | Cylinder block structure |
| FR3030345B1 (en) * | 2014-12-17 | 2017-09-08 | Dcns | METHOD FOR MANUFACTURING A COMPOUND MATERIAL ELEMENT HAVING AN ORIFICE AND / OR INSERT |
-
1981
- 1981-11-26 JP JP56189763A patent/JPS5891315A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5891315A (en) | 1983-05-31 |
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