JPH04107340A - Propeller shaft - Google Patents

Propeller shaft

Info

Publication number
JPH04107340A
JPH04107340A JP22709390A JP22709390A JPH04107340A JP H04107340 A JPH04107340 A JP H04107340A JP 22709390 A JP22709390 A JP 22709390A JP 22709390 A JP22709390 A JP 22709390A JP H04107340 A JPH04107340 A JP H04107340A
Authority
JP
Japan
Prior art keywords
propeller shaft
press
water
water absorption
cylinder member
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
Application number
JP22709390A
Other languages
Japanese (ja)
Inventor
Hiroyuki Iwasaki
博之 岩崎
Masami Tanitsu
谷津 正美
Masaaki Yamashita
雅昭 山下
Masaaki Ito
政昭 伊藤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kinugawa Rubber Industrial Co Ltd
Original Assignee
Kinugawa Rubber Industrial Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kinugawa Rubber Industrial Co Ltd filed Critical Kinugawa Rubber Industrial Co Ltd
Priority to JP22709390A priority Critical patent/JPH04107340A/en
Publication of JPH04107340A publication Critical patent/JPH04107340A/en
Pending legal-status Critical Current

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  • Motor Power Transmission Devices (AREA)
  • Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)

Abstract

PURPOSE:To prevent unbalanced rotation of a propeller shaft and prevent occurrence of vibration due to rotation and noise due to vibration effectively by providing circular water absorption member between respective adjacent elastic bodies. CONSTITUTION:A water absorption polymer 11 which is circular water absorption member is provided between each elastic member 5. This water absorption polymer 11 has the circular cross section and is wound on an outer peripheral face 3 of an inner cylindrical member 2 between each elastic member 5, 5. When the inner cylindrical member 2 is press-fitted into an outer cylindrical member 1 when propeller shaft is manufactured, water press-fitting liquid which is coated on the outer peripheral face of each elastic member 5 remains between each elastic member 5 after it is press-fitted, but water press-fitting liquid is absorbed on the whole of the water absorption polymer 11 by equal amount. Consequently, even if water press-fitting liquid in the water absorption polymer 11 is frozen in winter, unequal mass section is not produced in the inside between the inner and outer cylindrical members l, 2, and mass section which has equal weight is produced in peripheral direction. As a result, balance of the propeller shaft is kept when it is driven, and stable rotation is obtained at all the time.

Description

【発明の詳細な説明】 産業上の利用分野 本発明は、外筒部材及び該外筒部材の一端部から同軸状
に挿通された内筒部材との間に、略円筒状の弾性部材が
介装されて成るプロペラシャフトに関するものである。
DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a method in which a substantially cylindrical elastic member is interposed between an outer cylinder member and an inner cylinder member inserted coaxially from one end of the outer cylinder member. This relates to a propeller shaft equipped with a propeller shaft.

従来の技術 周知のように、例えば自動車用エンジンの駆動力を変速
機から終減速装置に伝達するプロペラシャフトとしては
、種々のものが提供されており、その−例として第3図
に示すものが知られている(実開昭62−196730
号公報等参照)。
As is well known in the art, various types of propeller shafts are available for transmitting the driving force of an automobile engine from a transmission to a final reduction gear, an example of which is shown in FIG. Known (Jitsukai Sho 62-196730
(Refer to the publication number, etc.)

このプロペラシャフトは、比較的大径な外筒部材1と、
該外筒部材1の内部軸方向に挿通された金属製の内筒部
材2と、予め内筒部材2の外周面3に加硫接着されて、
それぞれの内筒部材2と外筒部材1との間の空間部4内
に圧入されたゴム等の弾性部材5・・・とを備えている
。この弾性部材5・・・は略円筒状を呈し、内筒部材2
の軸方向に沿って所定間隔で直列状態に複数個配置され
ている。
This propeller shaft includes an outer cylinder member 1 having a relatively large diameter,
A metal inner cylinder member 2 is inserted in the inner axial direction of the outer cylinder member 1 and is vulcanized and bonded to the outer circumferential surface 3 of the inner cylinder member 2 in advance,
An elastic member 5 such as rubber is press-fitted into a space 4 between each inner cylinder member 2 and outer cylinder member 1. This elastic member 5... has a substantially cylindrical shape, and the inner cylinder member 2
A plurality of them are arranged in series at predetermined intervals along the axial direction.

このようなプロペラシャフトを用いることによって、エ
ンジンの駆動力を伝達させるための該プロペラシャフト
の回転中に、弾性部材5,5・の弾性変形を伴ってプロ
ペラシャフトのねじり振動特性を改善しミ防振性、防音
性を向上させることができる。
By using such a propeller shaft, the torsional vibration characteristics of the propeller shaft are improved and vibration prevention is achieved with the elastic deformation of the elastic members 5, 5 during the rotation of the propeller shaft for transmitting the driving force of the engine. Vibration properties and soundproofing properties can be improved.

■ そして、斯かるプロペラシャフトを製造する方法として
は、まず、内筒部材2の端部に前記複数の弾性部材5・
・・を加硫接着しておき、該内筒部材2の端部を、一端
部が支持された外筒部材1の開口他端部1aから内部へ
圧入するのであるか、この際、各弾性部材5・・・の外
周面に部系の圧入液を塗布して該弾性部材5の外筒部材
1内への挿通性を良好ならしめている。
(2) As a method for manufacturing such a propeller shaft, first, the plurality of elastic members 5 and 5 are attached to the end of the inner cylinder member 2.
... are vulcanized and bonded, and the end of the inner cylinder member 2 is press-fitted into the open other end 1a of the outer cylinder member 1 whose one end is supported. A press-fitting fluid is applied to the outer circumferential surface of the members 5 to improve the insertion of the elastic member 5 into the outer cylinder member 1.

発明が解決しようとする課題 然し乍ら、前述のように内筒部材2を外筒部材1内に圧
入するに際し、弾性部材5・・・の外周面に部系の圧入
液を塗布した場合には、圧入後において、該部系圧入液
が各弾性部材5内に浸透して該弾性部材5を膨出変形さ
せてしまう。この結果、プロペラシャフトの捩り剛性率
が第5図の実線で示すように経時的に変化してしまう。
Problems to be Solved by the Invention However, when press-fitting the inner cylinder member 2 into the outer cylinder member 1 as described above, if a press-fitting fluid is applied to the outer peripheral surface of the elastic member 5... After press-fitting, the partial press-fitting liquid permeates into each elastic member 5 and causes the elastic member 5 to bulge and deform. As a result, the torsional rigidity of the propeller shaft changes over time as shown by the solid line in FIG.

即ち、例えば圧入後100時間経過した時点では、捩り
剛性が圧入初期の場合よりも約10%」二昇し、更に時
間の経過とともに上昇してしまう。
That is, for example, after 100 hours have passed after press-fitting, the torsional rigidity increases by about 10% compared to the initial stage of press-fitting, and further increases as time passes.

そこで、部系圧入液に替えて水系圧入液を用いて圧入す
ることも行なわれているが、この場合は捩り剛性率の大
きな変化はなくなる(第5図破線参照)ものの、第3図
及び第4図に示すように圧入後に弾性部材5・・間の外
筒部材]の底部に残留した水系圧入液6が冬期時などに
おいて、凍結して外筒部材1の内周面8の一部に氷塊7
として固着してしまう虞がある。この結果、該氷塊7が
質量部となり、駆動時におけるプロペラシャフトのアン
バランスマスが増加して増幅振動や振動騒音が発生する
Therefore, instead of the partial injection liquid, a water-based injection liquid is used for injection, but in this case, there is no large change in the torsional rigidity (see the broken line in Fig. 5), but as shown in Figs. As shown in Fig. 4, the water-based injection fluid 6 remaining at the bottom of the outer cylindrical member between the elastic members 5 after press-fitting freezes and forms part of the inner circumferential surface 8 of the outer cylindrical member 1 during winter. ice block 7
There is a risk that it may become stuck. As a result, the ice block 7 becomes a mass part, and the unbalanced mass of the propeller shaft during driving increases, causing amplified vibration and vibration noise.

また、水系圧入液か内外筒部材1,2の内外周面3,8
に付着して該内外筒部材1,2を発錆させる虞がある。
In addition, water-based injection liquid may be used on the inner and outer circumferential surfaces 3 and 8 of the inner and outer cylinder members 1 and 2.
There is a possibility that the rust may adhere to the inner and outer cylindrical members 1 and 2.

課題を解決するための手段 本発明は、前記従来のプロペラシャフトの実情に鑑みて
案出されたもので、外筒部材と、該外筒部材内に挿入さ
れる内筒部材との空間部に水系圧入液を介して複数の弾
性部材を圧入介装してなるプロペラシャフトにおいて、
前記各弾性部材の間に円環状の吸水部材を設けたことを
特徴としていまた、外筒部材と、該外筒部材内に挿入さ
れる内筒部材との空間部に水系圧入液を介して複数の弾
性部材を圧入介装してなるプロペラシャフトにおいて、
前記水系圧入液に防錆剤を添加したことを特徴としてい
る。
Means for Solving the Problems The present invention has been devised in view of the actual situation of the conventional propeller shaft, and the present invention has been devised in view of the actual situation of the conventional propeller shaft. In a propeller shaft formed by press-fitting a plurality of elastic members through a water-based injection liquid,
It is characterized in that an annular water absorbing member is provided between each of the elastic members. In a propeller shaft formed by press-fitting a plurality of elastic members,
It is characterized in that a rust preventive agent is added to the aqueous injection liquid.

作用 まず、第1請求項の発明によれば、内筒部材の圧入後に
おいて、各弾性部材の間に残留した水系圧入液は、吸水
部材の全体に均一量で吸収される。
According to the first aspect of the invention, after the inner cylinder member is press-fitted, the aqueous press-in liquid remaining between the elastic members is absorbed in a uniform amount throughout the water-absorbing member.

したがって、冬期時などに吸水部材内の水系圧入液が凍
結しても、内外筒部材の内部で片寄った質量部とはなら
ず、周方向へ均一重量の質量部となる。
Therefore, even if the aqueous injection liquid in the water absorbing member freezes during winter, the mass part does not become uneven inside the inner and outer cylinder members, but becomes a mass part with uniform weight in the circumferential direction.

また、第2請求項の発明によれば、防錆剤の添加により
内外筒部材の発錆が効果的に防止される。
Further, according to the second aspect of the invention, rusting of the inner and outer cylindrical members is effectively prevented by adding the rust preventive agent.

実施例 以下、本発明の実施例を図面に基づいて詳述する。尚、
前記従来と共通の構成個所には同一の符号を付して説明
する。
EXAMPLES Hereinafter, examples of the present invention will be described in detail based on the drawings. still,
The same reference numerals will be given to the same components as those of the prior art and will be explained.

第1図は第1請求項の発明に係るプロペラシャフト構造
の一実施例を示し、図中1は外筒部材、2は内筒部材、
5・・・は内筒部材2の外周面3に軸方向へ一定間隔を
もって複数配置されたゴム製の環状弾性部材であって、
この各弾性部材5・・・の間には、円環状の吸水部材た
る吸水ポリマー11が配置されている。この吸水ポリマ
ー11は、横断面円形状を呈し、各弾性部材5,5間の
内筒部材2の外周面3に巻装されている。
FIG. 1 shows an embodiment of a propeller shaft structure according to the invention of claim 1, in which 1 is an outer cylinder member, 2 is an inner cylinder member,
5... is a plurality of annular elastic members made of rubber arranged at regular intervals in the axial direction on the outer circumferential surface 3 of the inner cylinder member 2,
A water-absorbing polymer 11, which is an annular water-absorbing member, is arranged between each of the elastic members 5. This water-absorbing polymer 11 has a circular cross section and is wrapped around the outer circumferential surface 3 of the inner cylinder member 2 between the elastic members 5, 5.

したがって、プロペラシャフトの製造時において外筒部
材1内に内筒部材2を圧入する際、各弾性部材5・・・
の外周面に塗布した水系圧入液が、圧入後各弾性部材5
・間に残留するが、この水系圧入液は、吸水ポリマー1
1の全体に均一量で吸収される。したがって、冬期時な
どに吸水ポリマー11内の水系圧入液が凍結しても、内
外筒部材1゜2間内部で従来のように片寄った質量部と
はならず、周方向へ均一重量の質量部となる。この結果
、駆動時におけるプロペラシャフトのバランスが保たれ
、常時安定した回転が得られる。
Therefore, when press-fitting the inner cylinder member 2 into the outer cylinder member 1 during manufacture of the propeller shaft, each elastic member 5...
The water-based injection fluid applied to the outer peripheral surface of each elastic member 5 after press-fitting
・Although it remains between the water-based injection liquid and the water-absorbing polymer 1
Absorbed in a uniform amount throughout 1. Therefore, even if the water-based pressurized liquid in the water-absorbing polymer 11 freezes during winter, the mass part will not be unevenly distributed between the inner and outer cylindrical members 1°2 as in the past, but will have a uniform mass part in the circumferential direction. becomes. As a result, the balance of the propeller shaft is maintained during driving, resulting in stable rotation at all times.

・、・・′1 第2図は、第2請求項の発明の実施例を示し、これは、
内外筒部材1,2間内の水系圧入液6に防錆剤12を添
加したものである。
...'1 Fig. 2 shows an embodiment of the invention of the second claim, which is
A rust preventive agent 12 is added to the water-based injection liquid 6 between the inner and outer cylindrical members 1 and 2.

したがって、この実施例によれば、内外筒部材1.2の
内外周面3,8に付着した水系圧入液6による各内外周
面3,8の発錆が確実に防止される。
Therefore, according to this embodiment, rusting of the inner and outer circumferential surfaces 3 and 8 due to the aqueous injection liquid 6 adhering to the inner and outer circumferential surfaces 3 and 8 of the inner and outer cylinder members 1.2 is reliably prevented.

また、この実施例では、前記第1請求項の実施例の吸水
ポリマー11を用いていないが、該吸水ポリマー11を
用いたものに適用することも可能である。このようにす
れば、吸水ポリマー11によるプロペラシャフトのアン
バランスな回転防止と、解凍後における水系圧入液によ
る内外筒部材1.2の発錆防止の両方の効果を得ること
ができる。
Further, although this embodiment does not use the water-absorbing polymer 11 of the embodiment of the first claim, it is also possible to apply the water-absorbing polymer 11 to one using the water-absorbing polymer 11. In this way, it is possible to obtain both the effects of preventing unbalanced rotation of the propeller shaft by the water-absorbing polymer 11 and preventing rusting of the inner and outer cylinder members 1.2 by the aqueous injection liquid after thawing.

尚、前記水系圧入液に、エチレングリコール等の不凍液
を添加することによって、該水系圧入液の凍結を防止す
ることも可能である。
It is also possible to prevent the aqueous injection fluid from freezing by adding an antifreeze such as ethylene glycol to the aqueous injection liquid.

発明の効果 以上の説明で明らかなように、第1請求項の発明によれ
ば、吸水部材によって内外筒部材間に周方向へ均一量の
氷塊質量部が形成されるため、プロペラシャフトのアン
バランスな回転が防止され、回転振動や振動騒音の発生
を効果的に防止することができる。
Effects of the Invention As is clear from the above explanation, according to the invention of the first claim, a uniform amount of ice mass is formed in the circumferential direction between the inner and outer cylinder members by the water absorbing member, so that the unbalance of the propeller shaft is reduced. Rotation is prevented, and generation of rotational vibration and vibration noise can be effectively prevented.

また、第2請求項の発生によれば、防錆剤によって内外
筒部材の発錆を確実に防止することができる。
Further, according to the second aspect of the present invention, rusting of the inner and outer cylinder members can be reliably prevented by the rust preventive agent.

尚、水系圧入液を用いることによってプロペラシャフト
の捩り剛性率の大きな変化を抑制できることは勿論であ
る。
It goes without saying that by using the aqueous injection fluid, large changes in the torsional rigidity of the propeller shaft can be suppressed.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は第1請求項の発明に係るプロペラシャフトの一
実施例を示す縦断面図、第2図は第2請求項の発明の一
実施例を示す横断面図、第3図は従来のプロペラシャフ
トを示す縦断面図、第4図は従来のプロペラシャフトの
横断面図、第5図はプロペラシャフトの捩り剛性率を油
系圧入液と水系圧入液とを用いた場合を比較して示す特
性図である。 1・外筒部材、2・・・内筒部材、4・・空間部、5・
−・弾性部材、6・・・水系圧入液、11・・・吸水ポ
リマー(吸水部材)、12・・・防錆剤。
FIG. 1 is a longitudinal cross-sectional view showing an embodiment of the propeller shaft according to the invention claimed in the first claim, FIG. 2 is a cross-sectional view showing an example of the propeller shaft according to the invention claimed in the second claim, and FIG. Figure 4 is a longitudinal cross-sectional view of a propeller shaft, Figure 4 is a cross-sectional view of a conventional propeller shaft, and Figure 5 is a comparison of the torsional rigidity of the propeller shaft when using oil-based injection fluid and water-based injection fluid. It is a characteristic diagram. 1. Outer cylinder member, 2... Inner cylinder member, 4. Space part, 5.
- Elastic member, 6... Water-based injection liquid, 11... Water-absorbing polymer (water-absorbing member), 12... Rust preventive agent.

Claims (2)

【特許請求の範囲】[Claims] (1)外筒部材と、該外筒部材内に挿入される内筒部材
との空間部に水系圧入液を介して複数の弾性部材を圧入
介装してなるプロペラシャフトにおいて、前記各弾性部
材の間に円環状の吸水部材を設けたことを特徴とするプ
ロペラシャフト。
(1) In a propeller shaft formed by press-fitting a plurality of elastic members into a space between an outer cylinder member and an inner cylinder member inserted into the outer cylinder member, each of the elastic members A propeller shaft characterized by having an annular water absorption member provided between the propeller shafts.
(2)外筒部材と、該外筒部材内に挿入される内筒部材
との空間部に水系圧入液を介して複数の弾性部材を圧入
介装してなるプロペラシャフトにおいて、前記水系圧入
液に防錆剤を添加したことを特徴とするプロペラシャフ
ト。
(2) In a propeller shaft formed by press-fitting a plurality of elastic members through a water-based injection liquid into a space between an outer cylinder member and an inner cylinder member inserted into the outer cylinder member, the water-based injection liquid A propeller shaft characterized by having a rust preventive added thereto.
JP22709390A 1990-08-29 1990-08-29 Propeller shaft Pending JPH04107340A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP22709390A JPH04107340A (en) 1990-08-29 1990-08-29 Propeller shaft

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22709390A JPH04107340A (en) 1990-08-29 1990-08-29 Propeller shaft

Publications (1)

Publication Number Publication Date
JPH04107340A true JPH04107340A (en) 1992-04-08

Family

ID=16855383

Family Applications (1)

Application Number Title Priority Date Filing Date
JP22709390A Pending JPH04107340A (en) 1990-08-29 1990-08-29 Propeller shaft

Country Status (1)

Country Link
JP (1) JPH04107340A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999008013A1 (en) * 1997-08-08 1999-02-18 Douglas Autotech Corp. Intermediate shaft assembly for steering columns
JP2011073525A (en) * 2009-09-29 2011-04-14 Yamada Seisakusho Co Ltd Unbalance correction device of propeller shaft

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999008013A1 (en) * 1997-08-08 1999-02-18 Douglas Autotech Corp. Intermediate shaft assembly for steering columns
US5902186A (en) * 1997-08-08 1999-05-11 Douglas Autotech Corp. Intermediate shaft assembly for steering columns
JP2011073525A (en) * 2009-09-29 2011-04-14 Yamada Seisakusho Co Ltd Unbalance correction device of propeller shaft

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