JPS6137850Y2 - - Google Patents
Info
- Publication number
- JPS6137850Y2 JPS6137850Y2 JP1978092043U JP9204378U JPS6137850Y2 JP S6137850 Y2 JPS6137850 Y2 JP S6137850Y2 JP 1978092043 U JP1978092043 U JP 1978092043U JP 9204378 U JP9204378 U JP 9204378U JP S6137850 Y2 JPS6137850 Y2 JP S6137850Y2
- Authority
- JP
- Japan
- Prior art keywords
- core tube
- flange
- shaft
- outer layer
- yoke
- 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
- 239000002131 composite material Substances 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 7
- 229920003002 synthetic resin Polymers 0.000 claims description 5
- 239000000057 synthetic resin Substances 0.000 claims description 5
- 238000003466 welding Methods 0.000 description 9
- 230000003014 reinforcing effect Effects 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 229920005989 resin Polymers 0.000 description 5
- 239000011347 resin Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000004026 adhesive bonding Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
Landscapes
- Motor Power Transmission Devices (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Description
【考案の詳細な説明】
この考案は、主として自動車のプロペラシヤフ
トなどで代表されるトルク伝達用の駆動シヤフト
に関するもので、特に金属材と繊維強化合成樹脂
（FRP）材とを用いた複合構造のシヤフトに関す
るものである。[Detailed description of the invention] This invention mainly relates to drive shafts for torque transmission, such as propeller shafts of automobiles, and is particularly concerned with drive shafts that have a composite structure using metal materials and fiber-reinforced synthetic resin (FRP) materials. It is related to the shaft.
従来、この種の複合構造のシヤフト、ジヨイン
ト・ヨークとは、その結合手段に溶接やボルト締
めなどの機械的結合を適用し得ない難点があつ
た。そこで、一般には接着剤による結合が多く利
用されているが、この接着剤による結合は、その
作業工程が複雑であり、かつ結合部分の信頼性に
欠けるといつた問題があつた。 Conventionally, shafts and joint yokes of this type of composite structure have had the disadvantage that mechanical coupling such as welding or bolting cannot be applied to the coupling means. Therefore, adhesive bonding is often used, but this adhesive bonding has problems such as a complicated work process and a lack of reliability in the bonded parts.
このような従来の問題点にかんがみて、この考
案は、金属とFRPとの複合構造による諸利点を
いかしたままで、ジヨイント・ヨークとの結合部
の信頼性を充分に配慮した駆動シヤフトの提供
を、その目的とするものである。 In view of these conventional problems, this idea provides a drive shaft that takes advantage of the composite structure of metal and FRP while giving due consideration to the reliability of the joint and yoke. Its purpose is to
次にこの考案の構成を、図面で示す自動車用プ
ロペラシヤフトの実施例によつて詳細に説明す
る。 Next, the configuration of this invention will be explained in detail using an example of an automobile propeller shaft shown in the drawings.
まず、第１図及び第２図において、シヤフトを
構成する芯管１は金属で形成されていて、その端
部にはフランジ１ａが一体に形成されている。ま
た、この芯管１の中には、その端部から金属製の
補強管２が適当な長さの範囲において挿入されて
いる。この補強管２にも、その端部においてフラ
ンジ２ａが一体に形成されていて、このフランジ
２ａは、芯管１のフランジ１ａに対し、スラスト
方向に関し重ね合わされている。そして、芯管１
と補強管２、およびこれら相互のフランジ１ａ，
２ａは、溶接によつて固定されている。 First, in FIGS. 1 and 2, a core tube 1 constituting the shaft is made of metal, and a flange 1a is integrally formed at the end thereof. Further, a reinforcing tube 2 made of metal is inserted into the core tube 1 from its end within a suitable length range. This reinforcing tube 2 is also integrally formed with a flange 2a at its end, and this flange 2a is overlapped with the flange 1a of the core tube 1 in the thrust direction. And core tube 1
and reinforcing pipe 2, and their mutual flanges 1a,
2a is fixed by welding.
上記芯管１の外周には、樹脂を含浸させたシー
ト状の繊維強化合成樹脂（FRP）材を、あらか
じめ定めた方向へ巻き付けて第１層３を構成して
いる。ついで、この第１層３の外周に、同じく
FRP材を円周方向に巻き付けて第２層４が構成
されている。この後、第１層３と第２層４とを加
熱して樹脂を硬化させることにより、芯管１の外
周にFRP製の外層５が構成されるのである。 A first layer 3 is formed around the outer periphery of the core tube 1 by wrapping a sheet-like fiber-reinforced synthetic resin (FRP) material impregnated with resin in a predetermined direction. Next, on the outer periphery of this first layer 3,
The second layer 4 is constructed by wrapping FRP material in the circumferential direction. Thereafter, by heating the first layer 3 and the second layer 4 to harden the resin, an outer layer 5 made of FRP is formed around the outer periphery of the core tube 1.
このように、金属製の芯管１とFRP製の外層
５とによる複合構造のシヤフトは、軽量であり、
かつ繊維の方向、樹脂の含有率、ならびに繊維、
樹脂の種類を選定することにより、その特性値
（強度、剛性、振動減衰特性など）を変更するこ
とができる。また、芯管１は、FRP製の外層５
を形成する際のマンドレルの役割を果たすため、
外層５が硬化した後にマンドレルを抜き取る作業
工程が不要となる。 In this way, the shaft with a composite structure consisting of the metal core tube 1 and the FRP outer layer 5 is lightweight,
and fiber direction, resin content, and fiber,
By selecting the type of resin, its characteristic values (strength, rigidity, vibration damping characteristics, etc.) can be changed. In addition, the core tube 1 has an outer layer 5 made of FRP.
To play the role of a mandrel in forming
The work step of removing the mandrel after the outer layer 5 is cured is not necessary.
なお、芯管１と、前記第１層３との結合力を高
める目的で、この芯管１の外周面に、ローレツト
加工による凹凸や浅いねじ溝を形成しておくこと
が望ましい。 In addition, in order to increase the bonding force between the core tube 1 and the first layer 3, it is desirable to form irregularities or shallow thread grooves by knurling on the outer circumferential surface of the core tube 1.
上記のように構成された複合構造のシヤフトに
おける前記の重合させたフランジ１ａ，２ａに
は、フツクジヨイントの一要素であるジヨイン
ト・ヨーク６のフランジ部分６ａが、溶接によつ
て結合されている。また、このときジヨイント・
ヨーク６の突起部が前記補強管２の内周、すなわ
ち、芯管１の端部内周に芯出し嵌合されている。
このため、ヨーク６と芯管１との芯出しが適正に
なされるとともに、シヤフトとジヨイント・ヨー
ク６との結合部分の信頼性は、極めて高い。 A flange portion 6a of a joint yoke 6, which is one element of a hook joint, is joined by welding to the overlapping flanges 1a and 2a of the composite structure shaft constructed as described above. Also, at this time, joint
The protrusion of the yoke 6 is centered and fitted to the inner periphery of the reinforcing tube 2, that is, the inner periphery of the end of the core tube 1.
Therefore, the yoke 6 and the core tube 1 are properly centered, and the reliability of the joint portion between the shaft and the joint yoke 6 is extremely high.
なお、前記の芯管１と補強管２との溶接、およ
びフランジ１ａ，２ａとジヨイント・ヨーク６の
溶接は、スポツト溶接とすることが好ましい。す
なわち、スポツト溶接は、被溶接材の温度を局部
的に上昇させて溶接を行うものであるから、芯管
１を通じてFRP製の外層５に著しい熱影響を与
えることが避けられ、もつて外層５の性能を劣化
させるようなおそれがない。また、スポツト溶接
は、その溶接部分以外の箇所への熱影響が小さい
ため、ジヨイント・ヨーク６の熱ひずみも小さく
抑えることができる。 Incidentally, the welding between the core tube 1 and the reinforcing tube 2 and the welding between the flanges 1a and 2a and the joint yoke 6 are preferably spot welded. In other words, since spot welding is performed by locally increasing the temperature of the material to be welded, it is possible to avoid significant thermal effects on the FRP outer layer 5 through the core tube 1, and thus the outer layer 5 There is no risk of deteriorating the performance of the In addition, since spot welding has a small thermal effect on areas other than the welded portion, thermal distortion of the joint yoke 6 can also be suppressed to a small level.
次に、この考案の異なる実施例を第３図によつ
て説明する。この実施例は、第１図及び第２図で
示す補強管２を省略した例である。すなわち、シ
ヤフトとジヨイント・ヨーク６との要求結合強度
によつては、芯管１のフランジ１ａに対して直接
にジヨイント・ヨーク６のフランジ部分６ａを溶
接することも可能となるのである。また、第１図
から第３図で示す実施例において、外層５を構成
する第２層４は、シヤフトの要求強度に応じて省
略してもよいが、樹脂の硬化過程において、第１
層３を安定させるためにも、第２層４を設けた方
が好ましい。 Next, a different embodiment of this invention will be explained with reference to FIG. This embodiment is an example in which the reinforcing tube 2 shown in FIGS. 1 and 2 is omitted. That is, depending on the required bonding strength between the shaft and the joint yoke 6, it is also possible to weld the flange portion 6a of the joint yoke 6 directly to the flange 1a of the core tube 1. In the embodiment shown in FIGS. 1 to 3, the second layer 4 constituting the outer layer 5 may be omitted depending on the required strength of the shaft, but in the curing process of the resin, the second layer 4 constituting the outer layer 5 may be omitted.
Also in order to stabilize the layer 3, it is preferable to provide the second layer 4.
このように、本考案は、FRP材の軽量効果
と、金属材の強度的な信頼性を備えた複合構造の
シヤフトであるにもかかわらず、このシヤフトと
ジヨイント・ヨークとの互いのフランジ部をスポ
ツト溶接で接合したことにより、溶接熱が芯管を
通じてFRP製の外層に著しい熱影響を及ぼすこ
とが避けられ、かつ例えばヨークに対する熱ひず
み等も小さく抑えることができる。しかも、この
考案は芯管とヨークとのフランジ部の溶接に際し
てヨークの突起部を芯管の端部内周に嵌合さるこ
とにより、ヨークと芯管との芯出しが適正になさ
れる。また、この考案によれば上記の芯管が
FRP製の外層を形成する際のマンドレルの役目
を果すため、この外層が硬化した後のマンドレル
抜き取り工程が全く不要となる。そのうえ、この
考案では金属製の芯管と繊維強化合成樹脂製の外
層とからなる複合構造のシヤフトを、まず完成品
として用意し、このシヤフト端部において芯管と
一体に形成されたフランジにジヨイント・ヨーク
を溶接し得るため、各種のジヨイント・ヨークの
選択的な使い分けが可能であり、かつシヤフトそ
のものの共通化によつて量産性にも適するといつ
た利点を有する。 In this way, although the present invention is a shaft with a composite structure that has the lightweight effect of FRP material and the strength and reliability of metal material, the flange parts of the shaft and joint yoke are By joining by spot welding, it is possible to prevent welding heat from having a significant thermal effect on the FRP outer layer through the core tube, and it is also possible to suppress, for example, thermal strain on the yoke to a small level. Moreover, in this invention, when the flange portions of the core tube and yoke are welded, the protrusion of the yoke is fitted to the inner periphery of the end of the core tube, so that the yoke and the core tube can be properly centered. Also, according to this idea, the above core tube
Since it serves as a mandrel when forming the FRP outer layer, there is no need to remove the mandrel after the outer layer is cured. Furthermore, in this invention, a shaft with a composite structure consisting of a metal core tube and an outer layer made of fiber-reinforced synthetic resin is first prepared as a finished product, and a joint is attached to the flange formed integrally with the core tube at the end of the shaft. - Since the yoke can be welded, various joints and yokes can be used selectively, and the shaft itself can be made common, making it suitable for mass production.
図面は、この考案の実施例を示し、第１図はプ
ロペラシヤフトとジヨイント・ヨークとを分離さ
せた状態の斜視図、第２図はシヤフトとジヨイン
ト・ヨークとを結合した状態の断面図、第３図は
異なる実施例を表した第２図と同様の断面図であ
る。
１……芯管（金属製）、１ａ……フランジ、２
……補強管、５……外層（FRP製）、６……ジヨ
イント・ヨーク。
The drawings show an embodiment of this invention; FIG. 1 is a perspective view of the propeller shaft and joint yoke separated, FIG. 2 is a sectional view of the shaft and joint yoke combined, and FIG. FIG. 3 is a sectional view similar to FIG. 2 showing a different embodiment. 1... Core tube (metal), 1a... Flange, 2
... Reinforcement pipe, 5 ... Outer layer (made of FRP), 6 ... Joint yoke.
Claims (1)
強化合成樹脂の外層とからなる複合構造のシヤフ
トであつて、前記芯管の端部に繊維強化合成樹脂
製の外層から露出したフランジを芯管と一体に形
成する一方、シヤフトの端部に結合されるジヨー
イント・ヨークは、前記芯管のフランジに接合可
能なフランジ部分と、この接合状態において芯管
の端部内周に芯出し嵌合し得る突起部とを有し、
芯管のフランジとジヨイント・ヨークのフランジ
部分とを互いに接合させた状態でスポツト溶接し
たことを特徴とする駆動シヤフト。 A shaft with a composite structure consisting of a metal core tube and an outer layer made of fiber-reinforced synthetic resin provided around the outer periphery of the core tube, and a flange exposed from the outer layer made of fiber-reinforced synthetic resin at the end of the core tube. is formed integrally with the core tube, while the joint yoke connected to the end of the shaft has a flange portion that can be joined to the flange of the core tube, and in this joined state, is centered and fitted to the inner periphery of the end of the core tube. It has a protrusion that can be fitted together,
A drive shaft characterized in that a flange of a core tube and a flange part of a joint yoke are spot welded while being joined to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1978092043U JPS6137850Y2 (en) | 1978-07-04 | 1978-07-04 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1978092043U JPS6137850Y2 (en) | 1978-07-04 | 1978-07-04 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS558286U JPS558286U (en) | 1980-01-19 |
| JPS6137850Y2 true JPS6137850Y2 (en) | 1986-11-01 |
Family
ID=29021867
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1978092043U Expired JPS6137850Y2 (en) | 1978-07-04 | 1978-07-04 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6137850Y2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1176917B (en) * | 1983-10-21 | 1987-08-18 | Westinghouse Electric Corp | PRECISION INTERIOR CUTTERS |
| KR100405480B1 (en) * | 2001-09-13 | 2003-11-14 | 현대자동차주식회사 | Structure for bonding steel yoke into a tube |
| KR100515800B1 (en) * | 2002-10-23 | 2005-09-21 | 한국과학기술원 | A drive shaft with a compound material and method thereof |
| WO2010116883A1 (en) * | 2009-04-10 | 2010-10-14 | Ntn株式会社 | Intermediate shaft for drive shaft |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5371422A (en) * | 1976-12-06 | 1978-06-24 | Toray Ind Inc | Vehiclar driving propeller shaft |
-
1978
- 1978-07-04 JP JP1978092043U patent/JPS6137850Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5371422A (en) * | 1976-12-06 | 1978-06-24 | Toray Ind Inc | Vehiclar driving propeller shaft |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS558286U (en) | 1980-01-19 |
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