JPH0761774B2 - Propeller shaft cover - Google Patents

Propeller shaft cover

Info

Publication number
JPH0761774B2
JPH0761774B2 JP22706288A JP22706288A JPH0761774B2 JP H0761774 B2 JPH0761774 B2 JP H0761774B2 JP 22706288 A JP22706288 A JP 22706288A JP 22706288 A JP22706288 A JP 22706288A JP H0761774 B2 JPH0761774 B2 JP H0761774B2
Authority
JP
Japan
Prior art keywords
cover
propeller shaft
shaft
axial direction
joint
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
Application number
JP22706288A
Other languages
Japanese (ja)
Other versions
JPH0274416A (en
Inventor
良承 藤原
喜重 武田
国雄 中嶋
茂明 田井
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.)
Koyo Seiko Co Ltd
Original Assignee
Koyo Seiko 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 Koyo Seiko Co Ltd filed Critical Koyo Seiko Co Ltd
Priority to JP22706288A priority Critical patent/JPH0761774B2/en
Publication of JPH0274416A publication Critical patent/JPH0274416A/en
Publication of JPH0761774B2 publication Critical patent/JPH0761774B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D3/00Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
    • F16D3/16Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts
    • F16D3/26Hooke's joints or other joints with an equivalent intermediate member to which each coupling part is pivotally or slidably connected
    • F16D3/38Hooke's joints or other joints with an equivalent intermediate member to which each coupling part is pivotally or slidably connected with a single intermediate member with trunnions or bearings arranged on two axes perpendicular to one another
    • F16D3/40Hooke's joints or other joints with an equivalent intermediate member to which each coupling part is pivotally or slidably connected with a single intermediate member with trunnions or bearings arranged on two axes perpendicular to one another with intermediate member provided with two pairs of outwardly-directed trunnions on intersecting axes

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Motor Power Transmission Devices (AREA)

Description

【発明の詳細な説明】 〈産業上の利用分野〉 この発明はたとえばトラクターの出力軸と作業機の入力
軸とを接続するプロペラシャフトを安全確保および防塵
の目的でカバーするプロペラシャフト用カバーに関す
る。
Description: TECHNICAL FIELD The present invention relates to a propeller shaft cover that covers a propeller shaft that connects an output shaft of a tractor and an input shaft of a working machine, for the purpose of ensuring safety and preventing dust.

〈従来の技術〉 従来、この種のプロペラシャフトカバーとしては、第8
図に示すようなものがある(特公昭58−36212号公
報)。このプロペラシャフト用カバー101は、円筒形で
プロペラシャフト102を覆う第1カバー103と略ラッパ状
でプロペラシャフト102の端部104を覆う第2カバー105
とを備えている。そして上記第2カバー105の嵌合部105
aを上記第1カバー103に内嵌して、上記第1、2カバー
103,105を一体に固定している。上記第2カバー105の円
筒部105bにはリヤレースカバー106を内嵌して固定して
おり、このリヤレースカバー106の端部106aに、所定の
環状の空間110を形成して軸方向に対向するようにフロ
ントレースカバー107を固定している。上記フロントレ
ースカバー107の径方向内側端にはボールホルダ108がロ
ー付け等により固定してあり、このボールホルダ108に
より、周方向一定間隔にボール109,109,…,を保持して
いる。そして、上記環状の空間110に、コイルスプリン
グ111とこのコイルスプリング111により軸方向に付勢さ
れ、軸方向に移動可能なスライドリング112とを配置し
ている。上記フロントレースカバー107には切除部107a
が設けてあり、この切除部107aから、上記スライドリン
グ112に軸方向に突設されたレバー113を、軸方向に外部
に突出させている。このレバー113の軸方向所定の位置
には径方向の切欠き114が設けてあり、レバーを軸方向
に押し込み次いで周方向に回転させて、この切欠き114
を上記フロントレースカバー107の切除部107aに係止す
ることにより、上記スライドリング112は所定の寸法軸
方向に押し込んだ状態で保持できるようになっている。
上記スライドリング112の端部には、ボール押え部115を
設けている。そして、上記スライドリング112の段部112
aがコイルスプリング111に軸方向に付勢されてフロント
レースカバー107に当接した状態で上記ボール109,109,
…がプロペラシャフトの102端部104の外周に設けた軌道
116から外れないように、ボール109,109,…を径方向に
押えるようにしている。つまり、プロペラシャフトカバ
ー101をプロペラシャフト102に取り付けている。そし
て、第2カバー105の操作穴105c越しの外部からの上記
レバー113の操作によりスライドリング112が押し込ま
れ、係止されたとき、上記ボール押え部115の位置が上
記ボール109,109,…に対して軸方向にずれて、上記プロ
ペラシャフト102の軌道116に嵌まっているボールボール
109,109,…を径方向に可動状態にして、上記プロペラシ
ャフトカバー101を上記プロペラシャフトから軸方向に
外すようにしている。そして、上記プロペラシャフトカ
バー101のプロペラシャフト102への取付けは、ボール10
9,109,…が上記軌道116の位置に一致するまで上記プロ
ペラシャフトカバー101を軸方向に押し込み、その状態
で上記係止状態のレバー113を周方向に回転させて係止
を解除して上記コイルスプリング111の作用により、上
記スライドリング112を押し込む前の位置に戻して、上
記ボール109,109,…を軌道116に押し込むと共に径方向
移動不可に押え、このボール109,109,…と軌道116の係
止により行うようにしている。
<Prior Art> Conventionally, as a propeller shaft cover of this type,
There is one as shown in the figure (Japanese Patent Publication No. 58-36212). The propeller shaft cover 101 is a cylindrical first cover 103 that covers the propeller shaft 102 and a substantially trumpet-shaped second cover 105 that covers an end 104 of the propeller shaft 102.
It has and. And the fitting portion 105 of the second cover 105
By fitting a into the first cover 103, the first and second covers
103 and 105 are fixed together. A rear race cover 106 is fitted in and fixed to the cylindrical portion 105b of the second cover 105, and a predetermined annular space 110 is formed at an end portion 106a of the rear race cover 106 so as to oppose in the axial direction. The front race cover 107 is fixed so that A ball holder 108 is fixed to the radially inner end of the front race cover 107 by brazing or the like, and the ball holder 108 holds the balls 109, 109, ... At regular intervals in the circumferential direction. A coil spring 111 and a slide ring 112 axially biased by the coil spring 111 and movable in the axial direction are arranged in the annular space 110. The front race cover 107 has a cutout 107a.
From this cutout portion 107a, a lever 113 axially protruding from the slide ring 112 is projected outward in the axial direction. A radial notch 114 is provided at a predetermined position in the axial direction of the lever 113, and the notch 114 is formed by pushing the lever in the axial direction and then rotating the lever in the circumferential direction.
The slide ring 112 can be held in a state of being pushed in the axial direction of a predetermined dimension by engaging with the cutout portion 107a of the front race cover 107.
A ball retainer 115 is provided at the end of the slide ring 112. Then, the step portion 112 of the slide ring 112.
When a is axially biased by the coil spring 111 and is in contact with the front race cover 107, the balls 109, 109,
Is the track provided on the outer circumference of the end 104 of the propeller shaft 102
The balls 109, 109, ... are pressed in the radial direction so as not to come off the 116. That is, the propeller shaft cover 101 is attached to the propeller shaft 102. When the slide ring 112 is pushed in and locked by the operation of the lever 113 from the outside through the operation hole 105c of the second cover 105, the position of the ball retainer 115 is relative to the balls 109, 109 ,. A ball that is axially displaced and is fitted into the track 116 of the propeller shaft 102.
, 109 are movable in the radial direction, and the propeller shaft cover 101 is axially removed from the propeller shaft. The propeller shaft cover 101 is attached to the propeller shaft 102 by mounting the ball 10
The propeller shaft cover 101 is pushed in the axial direction until 9, 109, ... Align with the position of the track 116, and in that state, the lever 113 in the locked state is rotated in the circumferential direction to release the lock and the coil spring. By the action of 111, the slide ring 112 is returned to the position before being pushed in, the balls 109, 109, ... Are pushed into the track 116 and are pressed so as not to move in the radial direction, and the balls 109, 109 ,. I have to.

〈発明が解決しようとする課題〉 しかしながら、上記従来のプロペラシャフトカバー101
はコイルスプリング111やスライドリング112が必要なた
め、カバーを構成する部品点数が多くなってしまうとい
う問題がある。また、レバー113を操作してプロペラシ
ャフト用カバー101を着脱するようにしているため、上
記第2カバー105に操作穴105cを必要とし、この操作穴1
05cから内部にダスト等の異物が入るという問題があ
る。また、狭い操作穴105c越しにレバーを操作する等カ
バーのプロペラシャフト102への着脱が困難であり、着
脱がワンタッチで行えないという問題がある。
<Problems to be Solved by the Invention> However, the above conventional propeller shaft cover 101 is used.
Since the coil spring 111 and the slide ring 112 are required, there is a problem that the number of parts constituting the cover increases. Moreover, since the propeller shaft cover 101 is attached and detached by operating the lever 113, the second cover 105 requires the operation hole 105c.
There is a problem that foreign matter such as dust enters inside from 05c. In addition, it is difficult to attach / detach the cover to / from the propeller shaft 102 such as operating the lever through the narrow operation hole 105c, and the attachment / detachment cannot be performed with one touch.

そこで、この発明の目的は、少ない部品点数で構成する
ことができ、ワンタッチに容易に確実に着脱することが
できると共に、操作穴等を必要とせず確実にプロペラシ
ャフトおよびプロペラシャフトのジョイント部を覆うこ
とのできる安全性の高いプロペラシャフトカバーを提供
することにある。
Therefore, an object of the present invention is that it can be configured with a small number of parts, can be easily and reliably attached / detached with one touch, and reliably covers the propeller shaft and the joint portion of the propeller shaft without requiring an operation hole or the like. It is to provide a highly safe propeller shaft cover that can be used.

〈課題を解決するための手段〉 上記目的を達成するため、この発明のプロペラシャフト
用カバーは、軸部とこの軸部に連なるジョイント部とを
有するプロペラシャフトを覆うプロペラシャフト用カバ
ーであって、 上記軸部を覆う筒部と、上記筒部から上記ジョイント部
の方向に軸方向に連なっており径方向に可動な係合部と
を有する第1カバーと、 上記第1カバーに軸方向移動可能に外嵌されており、カ
バー部とこのカバー部から上記軸部の方向に連なってい
る嵌合部とを有し、上記ジョイント部側に向かって軸方
向に移動してしまったときに、上記カバー部が上記ジョ
イント部を覆うとともに、上記嵌合部が上記第1カバー
の係合部に外嵌して上記係合部を径方向内方へ移動させ
て上記ジョイント部の基部に軸方向に係合させる第2カ
バーとを備えることを特徴としている。
<Means for Solving the Problems> In order to achieve the above object, the propeller shaft cover of the present invention is a propeller shaft cover for covering a propeller shaft having a shaft portion and a joint portion continuous with the shaft portion, A first cover having a tubular portion that covers the shaft portion and an engaging portion that is axially continuous from the tubular portion in the direction of the joint portion and is movable in the radial direction; and axially movable to the first cover. Is externally fitted to the joint part, and has a cover part and a fitting part that is continuous from the cover part in the direction of the shaft part. The cover portion covers the joint portion, and the fitting portion is externally fitted to the engaging portion of the first cover to move the engaging portion inward in the radial direction and to the base portion of the joint portion in the axial direction. Second hippo to engage It is characterized in that it comprises and.

〈作用〉 このプロペラシャフト用カバーをプロペラシャフトに装
着するときには、まず、第1カバーの係合部の軸方向位
置を、プロペラシャフトのジョイント部の基部に一致さ
せる。
<Operation> When the propeller shaft cover is attached to the propeller shaft, first, the axial position of the engaging portion of the first cover is made to coincide with the base portion of the joint portion of the propeller shaft.

次に、第2カバーを上記ジョイント部側に向かって軸方
向に移動させる。すると、第2カバーの嵌合部は第1カ
バーの係合部に外側から嵌合して第1カバーの係合部を
径方向内方へ移動させてジョイント部の基部に軸方向に
係合させる。このとき、第2カバーのカバー部はジョイ
ント部を覆う。
Next, the second cover is moved in the axial direction toward the joint portion side. Then, the fitting portion of the second cover is fitted into the engaging portion of the first cover from the outside to move the engaging portion of the first cover inward in the radial direction and axially engage the base portion of the joint portion. Let At this time, the cover portion of the second cover covers the joint portion.

つまり、第2カバーの軸方向への移動により、第1カバ
ーの係合部を径方向内方へ押圧して、上記プロペラシャ
フトのジョイント部の基部にワンタッチで係合させるこ
とができ、同時に、カバー部でジョイント部を覆うこと
ができる。
That is, by moving the second cover in the axial direction, the engaging portion of the first cover can be pressed inward in the radial direction to engage with the base portion of the joint portion of the propeller shaft with one touch, and at the same time, The cover portion can cover the joint portion.

上記第1,2カバーの取り外しは、上記とは逆の手順で行
われる。
The removal of the first and second covers is performed in the reverse order of the above.

まず、上記第2カバーを上記と逆の軸部側に向かって移
動させ、第2カバーの嵌合部と第1カバーの係合部との
嵌合を解除する。すると、第1カバーの係合部は径方向
外方に移動して、ジョイント部の基部との係合が解除さ
れる。
First, the second cover is moved toward the shaft portion opposite to the above, and the fitting between the fitting portion of the second cover and the engaging portion of the first cover is released. Then, the engaging portion of the first cover moves radially outward, and the engagement with the base portion of the joint portion is released.

次いで、第1カバーの係合部をジョイント部から軸方向
に引き離して第1,第2カバーをプロペラシャフトから取
り外す。
Next, the engaging portion of the first cover is axially separated from the joint portion to remove the first and second covers from the propeller shaft.

〈実施例〉 以下、この発明を図示の実施例により詳細に説明する。<Example> Hereinafter, the present invention will be described in detail with reference to illustrated examples.

第1図はこの発明のプロペラシャフト用カバーの要部の
縦断面図であり、1はプロペラシャフトである。このプ
ロペラシャフト1は軸部2と二又腕部3と軸受部4で構
成されており、図示しないトラクタからの動力を伝えら
れ回転する。
FIG. 1 is a vertical cross-sectional view of a main part of a propeller shaft cover of the present invention, and 1 is a propeller shaft. The propeller shaft 1 is composed of a shaft portion 2, a forked arm portion 3 and a bearing portion 4, and is rotated by receiving power from a tractor (not shown).

上記軸部2は角パイプ状の内側部材2aと外側部材2bとか
らなり、テレスコ状に互いに嵌合して、軸方向に伸縮自
在、かつ相対回転不可に設けられている。上記二又腕部
3は、軸に平行な2つの腕部6,6を有する略U字状で、
U字の底に相当し、外周に軸方向の円筒面7aを有する基
部7の端面の中央に、軸方向に貫通する角柱形の嵌合穴
7bを有する。そして、上記内側部材2aの端部に、二又腕
部3の嵌合穴7bを嵌合して溶接によりそれらを一体に取
り付けている。上記基部7の円筒面7aには、周方向に断
面が円の一部をなす環状溝を形成し、この環状溝により
上記軸受部4の一方の軌道7cを形成している。また上記
基部7には、断面略L字状で内周に軌道7cと対向する周
方向の軌道8aを有する環状の合成樹脂製の外輪部材8を
径方向に所定の間隔を保って装着している。そして、上
記一対の軌道面7c,8aの間に、保持器9によりばらける
ことなく周方向一定間隔に保持される転動体としての玉
10,10,…を収納して、上記軌道7c,保持器9,玉10および
外輪部材8により上記軸受部4を形成している。これに
より上記外輪部材8は二又腕部3に滑らかに回転自在に
支持される。上記外輪部材8は周方向所定の1箇所で軸
に平行な径方向の面で割りが入れられており、そのた
め、弾性的に周方向に径を広げることができる。したが
って、上記外輪部材8は玉10,10,…を容易に軌道面8aに
収納することができる。上記外輪部材8の軸方向上記腕
部6側の肩の内径dは、上記円筒面7aの径よりも僅かに
大きく設けられており、上記軸方向腕部6側から上記軌
道面7c,8a内に異物が浸入するのを防止するようになっ
ている。上記軸部2の端部と二又腕部3とこの軸受部4
により、プロペラシャフトのジョイント部Aが形成され
る。
The shaft portion 2 is composed of an inner member 2a and an outer member 2b in the shape of a square pipe, fitted in a telescopic shape with each other, and is expandable and contractible in the axial direction and is not rotatable relative to the shaft. The bifurcated arm portion 3 has a substantially U-shape having two arm portions 6, 6 parallel to the axis,
A prismatic fitting hole penetrating in the axial direction at the center of the end face of the base 7 having a cylindrical surface 7a in the axial direction on the outer periphery, which corresponds to the bottom of the U-shape.
With 7b. Then, the fitting hole 7b of the forked arm portion 3 is fitted to the end portion of the inner member 2a, and they are integrally attached by welding. On the cylindrical surface 7a of the base portion 7, an annular groove whose cross section forms a part of a circle in the circumferential direction is formed, and one annular track 7c of the bearing portion 4 is formed by the annular groove. Further, an annular outer ring member 8 made of synthetic resin having a substantially L-shaped cross section and having a circumferential orbit 8a facing the orbit 7c on the inner periphery is attached to the base 7 at a predetermined radial interval. There is. A ball as a rolling element is held between the pair of raceway surfaces 7c, 8a by the cage 9 at regular intervals in the circumferential direction without being scattered.
, 10 are accommodated to form the bearing portion 4 by the track 7c, the cage 9, the balls 10 and the outer ring member 8. As a result, the outer ring member 8 is smoothly and rotatably supported by the bifurcated arm 3. The outer ring member 8 is split at a predetermined circumferential position by a radial surface parallel to the shaft, so that the diameter can be elastically expanded in the circumferential direction. Therefore, the outer ring member 8 can easily store the balls 10, 10, ... In the raceway surface 8a. The inner diameter d of the shoulder of the outer ring member 8 on the side of the arm portion 6 in the axial direction is set to be slightly larger than the diameter of the cylindrical surface 7a, and from the side of the axial direction arm portion 6 to the inside of the raceway surfaces 7c, 8a. It is designed to prevent foreign matter from entering the inside. The end portion of the shaft portion 2, the forked arm portion 3, and the bearing portion 4
Thus, the joint portion A of the propeller shaft is formed.

上記二又腕部3の軸に平行な2つの腕部6,6には夫々、
上記基部7および軸部2の軸に直交する方向に貫通する
嵌合穴6a,6aを設けている。そして、この嵌合穴6aに、
互いに2つの軸が直交する十字形状で、4つの先端部に
夫々の軸回りに回転する回転部12a,12a,12b,12bを有す
る十字軸11の180°隔った2つの上記回転部12a,12aを内
嵌して、互いに回転可能に取り付けている。この十字軸
11の回転部12a,12aと軸を直交する残り2つの回転部12
b,12bには、上記二又腕部3と同じ形状の軸に平行な2
つの腕部13,13を有し、基部14の外端面の中心に軸方向
に貫通するスプライン穴15を有する継手部材16の上記腕
部13,13に設けられた嵌合穴13a,13aを嵌合して、互いに
回転可能に取り付けている。そして、上記二又腕部3の
腕部6,6と十字軸11と継手部材16の腕部13,13とで自在継
手Bを形成している。これにより、上記プロペラシャフ
ト1の回転は、プロペラシャフト1の軸と上記継手部材
16の軸が偏角をなしている状態でも、上記十字軸11を介
して上記継手部材16にスムーズに伝えられる。上記スプ
ライン穴15には、図示しない耕運等を行う作業機の入力
軸に設けられたスプライン部が嵌合される。そして嵌合
された状態で、基部14の側面に一部がスプライン穴に交
わるように設けられた抜け防止穴14aに図示しないピン
を挿入して、このピンにより上記スプライン部を、係止
して抜けないようにロックするようにしている。
The two arms 6, 6 parallel to the axis of the forked arm 3 are respectively
Fitting holes 6a, 6a are provided so as to penetrate in the direction orthogonal to the axes of the base portion 7 and the shaft portion 2. And in this fitting hole 6a,
Two above-mentioned rotating parts 12a 180 degrees apart of the cross shaft 11 having a cross shape in which two axes are orthogonal to each other and having four tip end parts having rotating parts 12a, 12a, 12b, 12b that rotate around their respective axes. 12a are fitted inside and rotatably attached to each other. This cross axis
The remaining two rotating parts 12 whose axes are orthogonal to the rotating parts 12a, 12a of 11
b and 12b have 2 parallel to the axis of the same shape as the forked arm 3.
Fitting holes 13a, 13a provided in the arm portions 13, 13 of the joint member 16 having two arm portions 13, 13 and a spline hole 15 penetrating in the axial direction at the center of the outer end surface of the base portion 14 They are attached so that they can rotate relative to each other. The arms 6, 6 of the bifurcated arm 3, the cross shaft 11, and the arms 13, 13 of the joint member 16 form a universal joint B. As a result, the rotation of the propeller shaft 1 and the shaft of the propeller shaft 1 and the joint member
Even when the shafts of 16 are declined, they can be smoothly transmitted to the joint member 16 via the cross shaft 11. The spline hole 15 is fitted with a spline portion provided on an input shaft of a working machine (not shown) for performing cultivation or the like. Then, in the fitted state, a pin (not shown) is inserted into the removal preventing hole 14a provided on the side surface of the base portion 14 so as to partially intersect the spline hole, and the spline portion is locked by this pin. I lock it so that it won't come out.

上記プロペラシャフト1の軸受部4の外輪歩8には、弾
性を有するプラスチックでできており、略円筒形で小径
の嵌合部20aと大径の支持部20bと上記支持部20bに連続
して設けられ、軸方向上記継手部16側に向かってフレア
状に広がるフレア部20cからなる取付リング20の上記支
持部20bを着脱可能に外嵌している。そして、上記支持
部20bと嵌合部20aとの間に形成される段部20dを上記外
輪部材8の端面に当接させている。
The outer ring step 8 of the bearing portion 4 of the propeller shaft 1 is made of elastic plastic and is substantially cylindrical, and is continuous with the small-diameter fitting portion 20a, the large-diameter support portion 20b, and the support portion 20b. The support portion 20b of the mounting ring 20 which is provided and includes a flare portion 20c flared in the axial direction toward the joint portion 16 side is detachably fitted on the outside. A step portion 20d formed between the support portion 20b and the fitting portion 20a is brought into contact with the end surface of the outer ring member 8.

上記支持部20bには、周方向一定間隔に複数個設けら
れ、軸方向の舌状で断面略L字形の係合部21,21,…を設
けている。そして、この係合部21の先端のつめ21aを上
記外輪部材8の上記腕部6側の端面に係合させて、この
つめ21aと上記段部20dとで外輪部材8を軸方向に挟ん
で、取付リング20自身を外輪部材8に対して軸方向に支
持している。この係合部21は、第2図に示すように、自
然状態で支持部20bの外周面と所定の角度をなして径方
向に弾性的に広がった状態となるように設けられてお
り、外力が作用して径方向内側に押圧されると、上記段
部20dとの境界線、つまり基部21bを中心に径方向内側に
弾性的に倒れて、第1図に示すように、外輪部材8に係
合するようになっている。そして、押圧が除かれると、
再び径方向に開き上記自然状態の位置まで戻るようにな
っている。また、上記支持部20bには、周方向一定間隔
に複数個設けられ、軸に平行な板状で、放射方向に延び
て先端が所定のR面で形成されると共に、中心に穴22a
を有する突出部22を突設してある。一方、上記嵌合部20
aは、上記支持部20bよりも小さな径を有しており、上記
プロペラシャフト1の回転を妨げないだけの大きさの内
径を有している。そして、その軸方向略中央に周方向一
定間隔に複数の断面台形で、径方向に所定の寸法突出す
る突起20a−1を有している。
The supporting portion 20b is provided with a plurality of engaging portions 21, 21, ... Having a tongue shape in the axial direction and having a substantially L-shaped cross section, which are provided at regular intervals in the circumferential direction. Then, the pawl 21a at the tip of the engaging portion 21 is engaged with the end surface of the outer ring member 8 on the side of the arm portion 6 so that the pawl 21a and the step portion 20d sandwich the outer ring member 8 in the axial direction. The mounting ring 20 itself is axially supported with respect to the outer ring member 8. As shown in FIG. 2, the engaging portion 21 is provided so as to elastically spread in the radial direction at a predetermined angle with the outer peripheral surface of the supporting portion 20b in a natural state, and the external force When it is pressed inward in the radial direction, it elastically collapses inward in the radial direction around the boundary line with the step portion 20d, that is, the base portion 21b, and as shown in FIG. It is designed to engage. And when the pressure is removed,
It opens again in the radial direction and returns to the natural position. Further, a plurality of the support portions 20b are provided at regular intervals in the circumferential direction, have a plate shape parallel to the axis, extend in the radial direction and have a tip formed of a predetermined R surface, and have a hole 22a at the center.
A projecting portion 22 having is provided. On the other hand, the fitting part 20
The diameter a is smaller than that of the support portion 20b, and has an inner diameter large enough not to prevent the rotation of the propeller shaft 1. A plurality of projections 20a-1 having a plurality of trapezoidal cross sections and projecting in a predetermined radial direction are provided at substantially the center in the axial direction at regular intervals in the circumferential direction.

上記嵌合部20aには、弾性を有するプラスチックで形成
されると共に、テレスコ状に軸方向に伸縮自在に設けら
れ、円筒形の内側部材23aと外側部材23bからなる筒部材
23のその内側部材23aの端部を外嵌している。そして、
上記突起20a−1を、この端部に上記突起20a−1に対応
する位置に設けられた係合穴23a−1に係止して一体に
固定している。これにより、この筒部材23は取付リング
20の嵌合部材20aに、上記プロペラシャフト1と接触す
ることなく軸を一致させた状態に支持されて取り付けら
れる。この取付は弾性的に行われる。上記突起20a−1
は上記内側部材23aの肉厚よりも小さな上記所定の寸法
突出しているため、上記外側部材23bと内側部材23aの伸
縮運動を妨げることはない。この筒部材23と上記取付リ
ング20とにより第1カバー25が形成される。
The fitting portion 20a is formed of an elastic plastic, and is provided in a telescopic manner so as to be expandable and contractible in the axial direction, and is a cylindrical member including a cylindrical inner member 23a and an outer member 23b.
The end of the inner member 23a of 23 is externally fitted. And
The projection 20a-1 is fixed to the end by engaging with an engaging hole 23a-1 provided at a position corresponding to the projection 20a-1. As a result, the tubular member 23 is attached to the mounting ring.
The propeller shaft 1 is supported and attached to the fitting member 20a of 20 without contacting the propeller shaft 1. This attachment is elastic. The protrusion 20a-1
Has a predetermined size smaller than the thickness of the inner member 23a, and thus does not hinder the expansion and contraction movement of the outer member 23b and the inner member 23a. The tubular member 23 and the mounting ring 20 form a first cover 25.

上記係合部21を外輪部材8に係合した状態の上記第1カ
バー25の取付リング20の支持部20bには、円筒部26aとこ
の円筒部26aに連なり、軸方向に継手部材16側に向かう
につれて「ハ」の字状に広がるジャバラ状部26bと上記
円筒部26aと上記ジャバラ状部26aにまたがって径方向に
突設され、軸に平行な略矩形の板状で中心に穴26aを有
する回り止め突起26cとからなる第2カバー26のその円
筒部26bを外嵌している。そして、上記ジャバラ状部26b
を中心に上記自在継手Bを覆っている。この第2カバー
26は、上記支持部20bに対して軸方向移動可能かつ、密
着して外嵌されており、第2図に矢印で示すように軸方
向上記継手部材16側に向けて移動させられて上記支持部
20bの軸方向所定の位置に外嵌されるときに、上記取付
リング20の係合部21を倒すように径方向内側に押圧し
て、この係合部21を上記軸受部4の外輪部材8に、前述
のように係止させるようになっている。上記円筒部26a
の内径は上記第1カバー25の外側部材23bの径よりも大
きく設けてあり、第2カバー26が上記支持部20bからの
嵌合を外されたとき、容易に上記第カバー25の筒部材23
に沿って軸方向に移動できるようになっている。
The support portion 20b of the mounting ring 20 of the first cover 25 in a state where the engagement portion 21 is engaged with the outer ring member 8 is connected to the cylindrical portion 26a and the cylindrical portion 26a, and is axially connected to the joint member 16 side. A bellows-like portion 26b that spreads in a "H" shape as it goes toward, the cylindrical portion 26a, and the bellows-like portion 26a are provided so as to project in a radial direction over the bellows-like portion 26a. The cylindrical portion 26b of the second cover 26, which is composed of the anti-rotation protrusion 26c, is externally fitted. Then, the bellows-like portion 26b
It covers the universal joint B centering on. This second cover
Reference numeral 26 is axially movable with respect to the support portion 20b and is externally fitted in close contact therewith, and is moved toward the joint member 16 side in the axial direction as indicated by an arrow in FIG. Department
When the outer ring member 8 of the bearing portion 4 is fitted to the outer ring member 8 of the bearing portion 4 when the outer ring member 8 of the bearing ring 4 is fitted to the outer ring member 8 of the bearing ring 4, the engaging portion 21 of the mounting ring 20 is pushed down. In addition, it is designed to be locked as described above. Above cylindrical part 26a
The inner diameter of the second cover 26 is larger than that of the outer member 23b of the first cover 25. When the second cover 26 is disengaged from the support portion 20b, the tubular member 23 of the first cover 25 can be easily removed.
It can be moved in the axial direction along.

上記円筒部26aおよびジャバラ状部26bの円筒部26a近傍
には、第3図に示すように、上記軸方向の移動に際し、
第2カバー26自身が上記支持部20bに突設された上記突
出部22により、その移動を妨げられないように、上記突
出部22の肉厚よりも僅かに大きな周方向の幅W1を有する
と共に、径方向外側に向けて所定の切込深さ寸法を有す
る軸方向のスリット27を設けている。このスリット27
は、上記突出部22と同数、かつ、上記突出部22と同じ周
方向一定間隔に設けられており、このスリット27の円筒
部26a側には、このスリット27に連通して上記突出部22
の軸方向の幅よりも僅かに広い軸方向寸法W2を有する周
方向の矩形の係止穴26eを設けている。そして、上記ス
リット27の底面27aが上記突出部22の上記筒部材23側の
端面22bに当接するまで軸方向にスライドして嵌合さ
れ、上記所定の軸方向位置に到った第2カバー26を、続
いて第3図中矢印で示す周方向に回転させて、上記第2
カバー26を上記突出部22に係止して、上記第1カバー25
に対し軸方向に支持して固定するようにしている。上記
第2カバー26の回り止め突起26cは、上記複数個の係止
穴26e,26e,…のうちの1つの上記スリット27と周方向反
対側の端面とその側面が一致するように設けられてい
る。そのため、上述のように周方向に止まるまで一杯に
回転させられた状態で、上記第1カバー25の取付リング
20の支持部20bに周方向一定間隔に複数個突設された上
記突出部22のいずれか1つが、上記第2カバー26の回転
止め突起26cとその側面を周方向に完全に一致させられ
る。このとき、同径である上記突出部22の穴22aと回り
止め突起26cの穴26dはその中心が一致する。この完全に
一致した状態の第1カバー25の突出部22と第2カバー26
の回り止め突起26cの穴22a,26dには、両端に外れ防止付
フック28,28を有する鎖29の一方のフック28を係止して
いる。そしてこの係止により上記第2カバー26と第1カ
バー25とが相対的に周方向に回転しないように固定して
いる。これにより、上記第2カバー26は、プロペラシャ
フト1の軸受部4の外輪部材8に係合部21を介して一体
に取り付けられた上記第1カバー25に、完全に固着さ
れ、上記第1カバー25と共に、上記プロペラシャフト1
に対して回転可能に支持される。上記第1カバー25と第
2カバー26を上記プロペラシャフト1の軸受部4から外
すときは上述の逆手順で行われる。上記鎖29の他方のフ
ック28は図示しないトラクタ側あるいは作業機側の静止
部材に係止される。これにより上記第1カバー25と第2
カバー26は、回転を止められ、静止した状態で、上記回
転するプロペラシャフト1および自在継手Bを覆う。上
記軸部2の外側部材2bおよび第1カバー25の筒部材23の
外側部材23bに連なるトラクタ側も構成が同様であるの
で説明を省略する。
In the vicinity of the cylindrical portion 26a of the cylindrical portion 26a and the bellows-shaped portion 26b, as shown in FIG. 3, when moving in the axial direction,
The second cover 26 itself has a circumferential width W1 slightly larger than the wall thickness of the protrusion 22 so that its movement is not hindered by the protrusion 22 provided on the support 20b. An axial slit 27 having a predetermined depth of cut is provided radially outward. This slit 27
Are provided in the same number as the projections 22 and at the same circumferential constant intervals as the projections 22, and the cylindrical portion 26a side of the slit 27 communicates with the slit 27 and the projections 22 are provided.
A rectangular locking hole 26e in the circumferential direction having an axial dimension W2 slightly larger than the axial width thereof is provided. Then, the bottom surface 27a of the slit 27 is slid and fitted in the axial direction until it comes into contact with the end surface 22b of the protruding portion 22 on the cylindrical member 23 side, and the second cover 26 reaches the predetermined axial position. Is then rotated in the circumferential direction indicated by the arrow in FIG.
The cover 26 is locked to the protruding portion 22 so that the first cover 25
In contrast, it is supported and fixed in the axial direction. The anti-rotation protrusion 26c of the second cover 26 is provided so that the slit 27 of one of the plurality of locking holes 26e, 26e, ... There is. Therefore, as described above, the attachment ring of the first cover 25 is fully rotated until it stops in the circumferential direction.
Any one of the plurality of protrusions 22 projecting from the support portion 20b of 20 at regular intervals in the circumferential direction can perfectly match the rotation stopping protrusion 26c of the second cover 26 with the side surface thereof in the circumferential direction. At this time, the centers of the hole 22a of the protruding portion 22 and the hole 26d of the anti-rotation protrusion 26c, which have the same diameter, coincide with each other. The protrusion 22 and the second cover 26 of the first cover 25 in this completely matched state
One of the hooks 28 of the chain 29 having the hooks 28, 28 for preventing disengagement at both ends is locked in the holes 22a, 26d of the rotation preventing projection 26c. By this locking, the second cover 26 and the first cover 25 are fixed so as not to relatively rotate in the circumferential direction. Thereby, the second cover 26 is completely fixed to the first cover 25 integrally attached to the outer ring member 8 of the bearing portion 4 of the propeller shaft 1 via the engaging portion 21, and the first cover 25 is 25 together with the above propeller shaft 1
Rotatably supported with respect to. When the first cover 25 and the second cover 26 are removed from the bearing portion 4 of the propeller shaft 1, the reverse procedure described above is performed. The other hook 28 of the chain 29 is locked to a stationary member (not shown) on the tractor side or the working machine side. As a result, the first cover 25 and the second cover
The cover 26 covers the rotating propeller shaft 1 and the universal joint B in a stationary state in which the rotation is stopped. The tractor side connected to the outer member 2b of the shaft portion 2 and the outer member 23b of the tubular member 23 of the first cover 25 has the same structure, and therefore the description thereof will be omitted.

上記構成のプロペラシャフト用カバーの着脱は以下のよ
うにして行う。
The propeller shaft cover having the above structure is attached and detached as follows.

まず、第2図に示すように、十字軸11を介して継手部材
16と自在継手Bをなして接続されたプロペラシャフト1
の軸部2に、第2カバー26を遊嵌した状態の第1カバー
25を、取付リング20側から挿通して外嵌する。そして、
上記第1カバー25を第2図の矢印の軸方向に押し進め、
プロペラシャフト1の軸受部4の外輪部材8にその支持
部20bを、段部20dが上記外輪部材8の端面に当接するま
で押し進めて外嵌する。すると、第1カバー25の筒部材
23は、上記外輪部材8に取付リング20を介して、上記プ
ロペラシャフト1と軸を一致させた状態で保持され、上
記プロペラシャフト1の軸部2を覆う。次いで、第2カ
バー26の周方向一定間隔に設けられた軸方向のスリット
27の周方向位置を上記支持部20bに周方向一定間隔に設
けられた突出部22の周方向と一致させた状態に保持し
て、上記第2カバー26を上記軸方向に押し進め、その円
筒部26aを上記支持部20bに外嵌してゆく。このとき、上
記突出部22と上記スリット27の周方向の位置が一致して
いるため、上記第2カバー26は上記突出部22と干渉する
ことなくスムーズに上記軸方向に押し進められる。する
と、上記押し進めと共に、上記第1カバー25の支持部20
bに周方向一定間隔に設けられた複数の係合部21,21,…
が同時に、上記円筒部26aに押圧されて径方向内側に倒
れ込んで、上記外輪部材8を軸方向に係止する。これに
より、上記第1カバー25は、上記プロペラシャフト1に
軸方向に支持される。スリット27の底面27aが上記突出
部22の筒部材23側の端面22bに当接すると押し進め、つ
まり、上記支持部20bへの第2カバー26の外嵌を終え
る。これにより上記第2カバー26は上記第1カバー25の
支持部20bの軸方向所定の位置に外嵌され、ジャバラ部2
6bを中心に上記自在継手Bを覆う。次いで、第2カバー
26を第1カバー25に対して第3図中矢印に示す周方向に
回転させ、上記第1カバー25の突出部22に、第2カバー
26の上記スリット27に連通して周方向に設けられた係止
穴26eのスリットと反対側の端面が当接して停止するま
で回転させる。これにより、上記第2カバー26に設けた
回り止め突起26cの側面と上記複数の突出部22のうちの
いずれか一つの側面とが周方向に一致する。次いで、こ
の一致した回り止め突起26cと上記いずれか1つの突出
部22とを、両端にフック28,28を有する鎖29の一方のフ
ック28を係止して、両者が周方向に互いに離れないよう
に固定する。これにより、この第2カバー26は、上記係
合部21の係合により外輪部材8に固定された上記第1カ
バー25の突出部22と係合穴26eの係合により、第1カバ
ー25に軸方向に支持されると共に、突出部22と回り止め
突起26cのフック28による上記係止により周方向に外れ
る方向への回転を止められ、第1カバー25に完全に一体
に固定される。最後に、上記鎖29の他方のフック28を図
示しない静止部材に係止して、上記第1,2カバー25,26の
上記プロペラシャフト1への取付を完了する。これによ
り、上記第1,2カバー25、26は、静止した状態で、回転
するプロペラシャフト1および自在継手Bを完全に覆う
ことができる。上記第1カバー25の取付リング20のフレ
ア部20cは、取付完了後、スリット27と周方向に位相が
ずれて上記スリット27より第2カバー内に異物が浸入す
るのを防止する。以上に述べた取付手順はすべて可逆的
であり、上記の手順を逆に行うことにより、上記第1,2
カバー25,26は、上記プロペラシャフト1から容易に外
すことができる。
First, as shown in FIG. 2, the joint member is inserted through the cross shaft 11.
Propeller shaft 1 connected to 16 via universal joint B
Cover in which the second cover 26 is loosely fitted to the shaft portion 2 of the
25 is inserted from the mounting ring 20 side and externally fitted. And
Push the first cover 25 in the axial direction of the arrow in FIG.
The support portion 20b is pushed onto the outer ring member 8 of the bearing portion 4 of the propeller shaft 1 until the step portion 20d comes into contact with the end surface of the outer ring member 8 to be fitted onto the outer ring member 8. Then, the tubular member of the first cover 25
The outer ring member 8 is held by the outer ring member 8 via a mounting ring 20 in a state where its axis is aligned with the propeller shaft 1 and covers the shaft portion 2 of the propeller shaft 1. Next, the slits in the axial direction provided at regular intervals in the circumferential direction of the second cover 26.
The circumferential position of 27 is maintained in a state of being aligned with the circumferential direction of the projecting portions 22 provided on the supporting portion 20b at regular intervals in the circumferential direction, and the second cover 26 is pushed in the axial direction to form a cylindrical portion thereof. The 26a is fitted onto the supporting portion 20b. At this time, since the circumferential positions of the protrusion 22 and the slit 27 are aligned with each other, the second cover 26 can be smoothly pushed in the axial direction without interfering with the protrusion 22. Then, together with the pushing forward, the supporting portion 20 of the first cover 25 is
A plurality of engaging portions 21, 21, ...
At the same time, the outer ring member 8 is pressed by the cylindrical portion 26a and falls inward in the radial direction to lock the outer ring member 8 in the axial direction. As a result, the first cover 25 is axially supported by the propeller shaft 1. When the bottom surface 27a of the slit 27 comes into contact with the end surface 22b of the protruding portion 22 on the side of the tubular member 23, the pushing is advanced, that is, the external fitting of the second cover 26 to the supporting portion 20b is completed. As a result, the second cover 26 is externally fitted to a predetermined position in the axial direction of the supporting portion 20b of the first cover 25, and the bellows portion 2
The universal joint B is covered around 6b. Then the second cover
The second cover 26 is rotated relative to the first cover 25 in the circumferential direction shown by the arrow in FIG.
Rotation is performed until the end face on the opposite side of the slit of the locking hole 26e, which is provided in the circumferential direction and communicates with the slit 27 of 26, comes into contact and stops. As a result, the side surface of the anti-rotation protrusion 26c provided on the second cover 26 and the side surface of any one of the plurality of protrusions 22 are circumferentially aligned. Then, the matching detent projection 26c and any one of the protrusions 22 are locked to one hook 28 of a chain 29 having hooks 28, 28 at both ends so that they do not separate from each other in the circumferential direction. So that it is fixed. As a result, the second cover 26 is attached to the first cover 25 by the engagement of the protrusion portion 22 of the first cover 25 fixed to the outer ring member 8 by the engagement of the engagement portion 21 and the engagement hole 26e. While being supported in the axial direction, the protrusion 22 and the rotation preventing projection 26c are prevented from rotating in the circumferentially disengaging direction by the above-mentioned locking by the hook 28, and are completely fixed to the first cover 25. Finally, the other hook 28 of the chain 29 is locked to a stationary member (not shown) to complete the attachment of the first and second covers 25 and 26 to the propeller shaft 1. As a result, the first and second covers 25, 26 can completely cover the rotating propeller shaft 1 and the universal joint B in a stationary state. The flare portion 20c of the attachment ring 20 of the first cover 25 prevents the foreign matter from entering the second cover through the slit 27 due to a phase shift in the circumferential direction from the slit 27 after the attachment is completed. All the mounting procedures described above are reversible, and by reversing the above procedure,
The covers 25 and 26 can be easily removed from the propeller shaft 1.

このように、まず、プロペラシャフト1の軸部2に嵌装
された第1カバー25の端部に固定されている取付リング
20の支持部20bをプロペラシャフト1の軸受部4の外輪
部材8に嵌合して、第1カバー25をプロペラシャフト1
と同軸に保持し、次いで、第2カバー26の円筒部26aを
上記第1カバー25の支持部20aに外嵌して軸方向にスラ
イドさせ、このスライドにより、上記取付リング20の支
持部20bに設けられ、通常は径方向外側に開いている複
数の係合部21を径方向内側に押圧して、上記外輪部材8
に係止させて、第1カバー25をプロペラシャフト1に取
付け、次いで、第2カバー26を上記第1カバー25に対し
て、周方向に回転させて、上記取付リング20の支持部20
bに突設された複数の突出部22を、第2カバー26に設け
られ、スリット27と連通して周方向に設けられた係止穴
26eに係止し、この突出部22のうち第2カバー26の回り
止め突起26cと一致した突出部22と上記回り止め突起26c
を、鎖29の一方のフック28により周方向に固定して、こ
の第2カバー26を上記第1カバー25に対して完全に一体
に固定して、上記係合部21を上記プロペラシャフトの外
輪部材8に完全に固定し、最後に、鎖29の他方のフック
28を静止部材に係止して、第1,2カバー25,26をプロペラ
シャフト1の回転によらず静止状態に固定して、プロペ
ラシャフト1への取付けを行い、また、上記と逆の手順
により取外しを行うので、このプロペラシャフト用カバ
ーは、従来のように、操作穴を通して第2カバーの内側
で困難な脱着操作を行ったりすることなく、外部からの
第2カバー26の軸方向のスライドと、周方向の回転と、
周方向の回転の固定あるいは解除動作だけで、プロペラ
シャフト1に容易に確実に着脱することができると共
に、静止した状態で、プロペラシャフト1の伸縮に応じ
て伸縮しつつ、プロペラシャフト1を確実に覆うことが
でき、かつプロペラシャフト1に続く自在継手Bも、そ
の揺動によらず確実に覆うことができる。したがって、
このプロペラシャフト用カバーは、巻き込み等の事故や
プロペラシャフト1のテレスコ部や軸受部4にスラッジ
等の異物が浸入するのを確実に防止することができる。
Thus, first, the attachment ring fixed to the end of the first cover 25 fitted to the shaft portion 2 of the propeller shaft 1.
The support portion 20b of 20 is fitted to the outer ring member 8 of the bearing portion 4 of the propeller shaft 1, and the first cover 25 is attached to the propeller shaft 1
Then, the cylindrical portion 26a of the second cover 26 is externally fitted to the support portion 20a of the first cover 25 and slid in the axial direction, and this slide allows the support portion 20b of the mounting ring 20 to be attached to the support portion 20b. The outer ring member 8 is provided by pressing a plurality of engaging portions 21 that are provided and normally open outward in the radial direction toward the inner side in the radial direction.
The first cover 25 is attached to the propeller shaft 1, and then the second cover 26 is rotated in the circumferential direction with respect to the first cover 25 to support the mounting portion 20 of the mounting ring 20.
A plurality of projecting portions 22 projecting from b are provided in the second cover 26 and communicate with the slits 27, and are provided in the circumferential direction with locking holes.
Of the protrusion 22, the protrusion 22 corresponding to the rotation stopper protrusion 26c of the second cover 26 and the rotation stopper protrusion 26c.
Is fixed in the circumferential direction by one hook 28 of the chain 29, the second cover 26 is completely fixed to the first cover 25, and the engaging portion 21 is the outer ring of the propeller shaft. Fully fixed to member 8 and finally the other hook of chain 29
28 is locked to a stationary member, the first and second covers 25 and 26 are fixed to a stationary state regardless of the rotation of the propeller shaft 1, and the propeller shaft 1 is attached. Since the propeller shaft cover is detached by means of this method, this propeller shaft cover can be slid in the axial direction of the second cover 26 from the outside without any difficult attachment / detachment operation inside the second cover through the operation hole as in the conventional case. And circumferential rotation,
The propeller shaft 1 can be easily and surely attached / detached to / from the propeller shaft 1 only by fixing or releasing the rotation in the circumferential direction, and in the stationary state, the propeller shaft 1 can be expanded / contracted in accordance with the expansion / contraction of the propeller shaft 1 and securely. The universal joint B that can be covered and that follows the propeller shaft 1 can be reliably covered regardless of its swinging. Therefore,
This propeller shaft cover can reliably prevent accidents such as entrainment and foreign matter such as sludge from entering the telescopic portion of the propeller shaft 1 and the bearing portion 4.

また、このプロペラシャフト用カバーは、従来のように
コイルバネやスライドリング等を必要としないため、従
来に比べて部品点数を少なくすることができる。また、
プロペラシャフト用カバーをプロペラシャフト1から外
したときに、従来のように軌道面がむき出しになってそ
の軌道面にカバーを外している間に異物が付着したりす
ることがないため、常に滑らかな回転を確保することが
でき、軸受部4の寿命を保つことができる。
Further, this propeller shaft cover does not require a coil spring, a slide ring, or the like as in the conventional case, so that the number of parts can be reduced as compared with the conventional case. Also,
When the propeller shaft cover is removed from the propeller shaft 1, the raceway surface is exposed as in the past and foreign matter does not adhere to the raceway surface while the cover is removed. Rotation can be secured and the life of the bearing portion 4 can be maintained.

上記実施例では、第2カバー26を、第1カバー25から軸
方向部材側に外せるように設けたが、第4図に示すよう
に、第1カバー26の筒部材23の内側部材23a端面から軸
方向所定の寸法内側の位置の外周面に周方向に、径方向
外側に向けて環状のストッパー30を突設する一方、第2
カバー26の円筒部26aの後端部に径方向内側に向けて上
記内側部材23aに軸方向および周方向に移動可能に嵌合
する内フランジ部31を設け、第1カバー25を筒部材23の
上記ストッパー30と端面23bとの間に上記第2カバー26
の内フランジ部31を外嵌した状態で、この内側部材23a
を取付リング30の嵌合部20aに突起20a−1を係合穴23a
−1に係合して外嵌固定して組み立てて、上記第2カバ
ー26を上記第1カバー25に対して上記ストッパー30と段
部20dとの間の軸方向所定の範囲に移動可能に取り付
け、この第2カバー26が第1カバー25から外れないにし
てもよい。このとき、上記所定の寸法は、上記第2カバ
ー26の円筒部26aを上記第1カバー25の取付リング20の
支持部20bから完全に軸方向矢印方向にずらすことがで
きるように設けられるのはもちろんである。
In the above embodiment, the second cover 26 is provided so as to be detachable from the first cover 25 toward the axial member side. However, as shown in FIG. 4, from the inner member 23a end surface of the tubular member 23 of the first cover 26, A ring-shaped stopper 30 is provided so as to project radially outward on the outer peripheral surface at a position axially inner by a predetermined dimension.
An inner flange portion 31 is provided at the rear end portion of the cylindrical portion 26a of the cover 26 so as to be radially inwardly fitted to the inner member 23a so as to be movable in the axial direction and the circumferential direction. The second cover 26 is provided between the stopper 30 and the end surface 23b.
With the inner flange portion 31 of the
Attach the projection 20a-1 to the fitting portion 20a of the mounting ring 30 and engage the hole 23a.
-1 is engaged with and externally fixed to assemble, and the second cover 26 is attached to the first cover 25 so as to be movable within a predetermined axial range between the stopper 30 and the step portion 20d. The second cover 26 may not be removed from the first cover 25. At this time, the predetermined size is provided such that the cylindrical portion 26a of the second cover 26 can be completely displaced in the axial arrow direction from the support portion 20b of the mounting ring 20 of the first cover 25. Of course.

また、上記実施例では、取付リング20の係合部21は軸方
向の略舌状で先端に断面略矩形のつめ21aを有する断面
略L字形状をしており、かつ、この係合部21は、第2カ
バー26の円筒部26aから押圧されていないときは、常に
径方向外側に弾性的に開いているように設けてあり、第
2カバー26の軸方向のスライドにより押圧されたときに
径方向内側に倒れて、プロペラシャフト1の軸受部4の
外輪部材8を係止するように設けたが、第5図に示すよ
うに、取付リング20に同じく軸方向の略舌状で、先端
に、装着するスライド方向に向かうにつれて径が大きく
なるテーパ面40aを有する断面略直角三角形のつめ40を
有する係合部41を設けてもよい。これにより、係合部41
の径方向外側への開き方が小さくなったような場合で
も、テーパ面40aの案内によりスムーズに外輪部材8を
通過させることができる。
Further, in the above-described embodiment, the engaging portion 21 of the mounting ring 20 has a substantially tongue-like shape in the axial direction and has a substantially L-shaped cross section having a pawl 21a having a substantially rectangular cross section at the tip, and the engaging portion 21 Is provided so as to always elastically open outward in the radial direction when not pressed from the cylindrical portion 26a of the second cover 26, and when pressed by the axial sliding of the second cover 26. The outer ring member 8 of the bearing portion 4 of the propeller shaft 1 is provided so as to fall inward in the radial direction, and the outer ring member 8 of the propeller shaft 1 is locked, but as shown in FIG. In addition, an engaging portion 41 having a pawl 40 having a substantially right-angled cross section and having a tapered surface 40a whose diameter increases as it is mounted in the sliding direction may be provided. Thereby, the engaging portion 41
Even in the case where the opening of the outer ring in the radial direction becomes smaller, the outer ring member 8 can be smoothly passed by the guide of the tapered surface 40a.

また、上記実施例では、第1カバー25の係合部21が係止
されるプロペラシャフト1の軸受部4は、二又腕部3の
円筒面7aの軌道7c,玉10,保持器9および外輪部材8によ
り構成された玉軸受であったが、玉軸受に限らず、例え
ば、第6図に示すようにすべり軸受50とすることも可能
である。第6図のすべり軸受50は、二又腕部3の基部7
の円筒面7aの軸方向略中央に周方向に設けられた断面矩
形の環状の溝51に滑らかに回転可能に嵌合され軸方向に
支持されており、上記実施例と同様に、第1カバー25の
係合部21が、その外周側に、第2カバー26の円筒部26a
に押圧されて、係止されている。
Further, in the above embodiment, the bearing portion 4 of the propeller shaft 1 to which the engaging portion 21 of the first cover 25 is locked includes the raceway 7c of the cylindrical surface 7a of the bifurcated arm portion 3, the ball 10, the cage 9, and Although the ball bearing is composed of the outer ring member 8, the ball bearing is not limited to the ball bearing, and may be a slide bearing 50 as shown in FIG. 6, for example. The slide bearing 50 shown in FIG. 6 has a base portion 7 of the forked arm portion 3.
It is smoothly rotatably fitted in and axially supported by an annular groove 51 having a rectangular cross section, which is provided in the circumferential direction substantially at the center of the cylindrical surface 7a of the first cover in the same manner as in the above embodiment. The engaging portion 21 of 25 has a cylindrical portion 26a of the second cover 26 on the outer peripheral side thereof.
It is pressed against and locked.

また第7図に示すように、プロペラシャフト1の端部に
固定された二又腕部3の基部7の円筒面7aに、断面略矩
形の環状溝60を設けると共に、その環状溝60よりも軸方
向の軸部2の取り付け側に、径方向外側に向けて外周が
円筒面61aで形成される環状の突出部61を設け、一方、
第1カバー25の支持部20bに軸方向に略舌状に設けら
れ、軸方向所定の位置に径方向内側に突出する内つめ62
を有する係合部63を設け、自然状態で径方向外側に弾性
的に開いている上記係合部63を、第2カバー26のスライ
ド共に、径方向内側に向けて押圧して、その内爪62を上
記環状溝60内に収納して、この内つめ62と段部20dとに
より、上記突出部61を軸方向に挟んで第1,2カバー25,26
をプロペラシャフト1に軸方向に支持するようにしても
よい。第2カバー26により軸と平行に押圧された状態の
上記係合部63の内径および支持部20bの内径と上記突出
部61の外径とは、径方向に僅かな間隔を有しており、ま
た、上記内つめ62の内周面と上記環状溝60の底面60aと
も径方向に所定の間隙を有しており、さらに、内つめ62
の軸方向寸法は上記環状溝の幅よりも小さく設けられて
いるため。上記第1,2カバー25,26は、プロペラシャフト
1に対して滑らかに回転可能に支持される。
Further, as shown in FIG. 7, an annular groove 60 having a substantially rectangular cross section is provided on the cylindrical surface 7a of the base portion 7 of the bifurcated arm portion 3 fixed to the end portion of the propeller shaft 1. On the mounting side of the shaft portion 2 in the axial direction, an annular projecting portion 61 whose outer periphery is formed by a cylindrical surface 61a is provided toward the radially outer side.
An inner pawl 62 which is provided on the supporting portion 20b of the first cover 25 in a substantially tongue shape in the axial direction and projects radially inward at a predetermined position in the axial direction.
Is provided, and the engaging portion 63 that is elastically open outward in the radial direction in the natural state is pressed radially inward with the slide of the second cover 26, and the inner claw thereof is formed. 62 is housed in the annular groove 60, and the inner pawl 62 and the step portion 20d sandwich the protruding portion 61 in the axial direction, and the first and second covers 25, 26 are provided.
May be supported on the propeller shaft 1 in the axial direction. The inner diameter of the engaging portion 63 and the inner diameter of the supporting portion 20b and the outer diameter of the protruding portion 61, which are pressed by the second cover 26 in parallel with the axis, have a slight radial interval. Further, both the inner peripheral surface of the inner pawl 62 and the bottom surface 60a of the annular groove 60 have a predetermined gap in the radial direction.
The axial dimension of is smaller than the width of the annular groove. The first and second covers 25, 26 are supported so as to be able to rotate smoothly with respect to the propeller shaft 1.

〈発明の効果〉 以上より明らかなように、この発明のプロペラシャフト
用カバーは、プロペラシャフトの軸部を覆う筒部と、上
記筒部からプロペラシャフトのジョイント部の方向に軸
方向に連なっており径方向に可動な係合部とを有する第
1カバーと、第1カバーに軸方向移動可能に外嵌されて
おり、カバー部とこのカバー部から軸部の方向に連なっ
ている嵌合部とを有し、ジョイント部側に向かって軸方
向に移動してしまったときに、上記カバー部が上記ジョ
イント部を覆うとともに、上記嵌合部が上記第1カバー
の係合部に外嵌して上記係合部を径方向内方へ移動させ
て上記ジョイント部の基部に軸方向に係合させる第2カ
バーと備えるものである。
<Effects of the Invention> As is clear from the above, the propeller shaft cover of the present invention is continuous in the axial direction from the tubular portion covering the axial portion of the propeller shaft to the joint portion of the propeller shaft. A first cover having an engaging portion that is movable in the radial direction; and a fitting portion that is fitted onto the first cover so as to be movable in the axial direction, and a fitting portion that extends from the cover portion in the axial direction. And the cover portion covers the joint portion and the fitting portion is externally fitted to the engaging portion of the first cover when the cover portion covers the joint portion. A second cover is provided which moves the engaging portion inward in the radial direction and axially engages the base portion of the joint portion.

したがって、この発明のプロペラシャフト用カバーは、
第2カバーを第1カバーに対して軸方向に移動させるだ
けで、容易かつ確実に第1カバーの係合部とプロペラシ
ャフトのジョイント部を係合させることができ、かつ、
その係合を解除させることができる。すなわち、この発
明のプロペラシャフト用カバーは、プロペラシャフトに
ワンタッチで着脱することができ、かつ、第1カバーで
プロペラシャフトの軸部を覆い、かつ第2カバーでプロ
ペラシャフトのジョイント部を確実に覆って、巻き込み
やプロペラシャフトへの異物の浸入を防止することがで
きる。
Therefore, the propeller shaft cover of the present invention is
By merely moving the second cover in the axial direction with respect to the first cover, the engaging portion of the first cover and the joint portion of the propeller shaft can be easily and reliably engaged, and
The engagement can be released. That is, the propeller shaft cover of the present invention can be attached to and detached from the propeller shaft with one touch, the first cover covers the shaft portion of the propeller shaft, and the second cover surely covers the joint portion of the propeller shaft. As a result, it is possible to prevent entanglement and entry of foreign matter into the propeller shaft.

また、このプロペラシャフト用カバーは、従来のように
コイルバネやスライドリングを必要としないため、従来
に比べて部品点数を少なくすることができる。
Further, since this propeller shaft cover does not require a coil spring or a slide ring as in the conventional case, the number of parts can be reduced as compared with the conventional case.

【図面の簡単な説明】[Brief description of drawings]

第1図はこの発明の一実施例のプロペラシャフト用カバ
ーをプロペラシャフトに装着した状態の縦断面図、第2
図はプロペラシャフトにプロペラシャフト用カバーを装
着する説明図、第3図はプロペラシャフトにプロペラシ
ャフト用カバーを装着した状態の図、第4,5,6図は夫々
変形例の図、第8図は従来のプロペラシャフト用カバー
をプロペラシャフトに装着した状態の縦断面図である。 1……プロペラシャフト、20……取付リング、21,41,63
……係合部、25……第1カバー、26……第2カバー、A
……ジョイント部。
FIG. 1 is a vertical sectional view showing a state in which a propeller shaft cover according to an embodiment of the present invention is mounted on a propeller shaft, and FIG.
Figure is an explanatory view of installing the propeller shaft cover on the propeller shaft, Figure 3 is a view of the propeller shaft with the propeller shaft cover installed, and Figures 4, 5 and 6 are modification examples and Figure 8, respectively. FIG. 6 is a vertical cross-sectional view of a conventional propeller shaft cover mounted on a propeller shaft. 1 ... Propeller shaft, 20 ... Mounting ring, 21,41,63
...... Engagement part, 25 ...... First cover, 26 ...... Second cover, A
…… Joint section.

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】軸部とこの軸部に連なるジョイント部とを
有するプロペラシャフトを覆うプロペラシャフト用カバ
ーであって、 上記軸部を覆う筒部と、上記筒部から上記ジョイント部
の方向に軸方向に連なっており径方向に可動な係合部と
を有する第1カバーと、 上記第1カバーに軸方向移動可能に外嵌されており、カ
バー部とこのカバー部から上記軸部の方向に連なってい
る嵌合部とを有し、上記ジョイント部側に向かって軸方
向に移動してしまったときに、上記カバー部が上記ジョ
イント部を覆うとともに、上記嵌合部が上記第1カバー
の係合部に外嵌して上記係合部を径方向内方へ移動させ
て上記ジョイント部の基部に軸方向に係合させる第2カ
バーとを備えることを特徴とするプロペラシャフト用カ
バー。
1. A propeller shaft cover for covering a propeller shaft having a shaft portion and a joint portion connected to the shaft portion, the cylinder portion covering the shaft portion, and a shaft extending from the cylinder portion to the joint portion. A first cover having an engaging portion that is continuous in the direction and is movable in the radial direction, and is externally fitted to the first cover so as to be movable in the axial direction, and the cover portion and the cover portion in the direction of the shaft portion. And a fitting portion that is continuous, and when the cover portion covers the joint portion and the fitting portion of the first cover has moved axially toward the joint portion side. A propeller shaft cover comprising: a second cover that is externally fitted to the engaging portion to move the engaging portion radially inward to axially engage the base portion of the joint portion.
JP22706288A 1988-09-09 1988-09-09 Propeller shaft cover Expired - Fee Related JPH0761774B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP22706288A JPH0761774B2 (en) 1988-09-09 1988-09-09 Propeller shaft cover

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22706288A JPH0761774B2 (en) 1988-09-09 1988-09-09 Propeller shaft cover

Publications (2)

Publication Number Publication Date
JPH0274416A JPH0274416A (en) 1990-03-14
JPH0761774B2 true JPH0761774B2 (en) 1995-07-05

Family

ID=16854932

Family Applications (1)

Application Number Title Priority Date Filing Date
JP22706288A Expired - Fee Related JPH0761774B2 (en) 1988-09-09 1988-09-09 Propeller shaft cover

Country Status (1)

Country Link
JP (1) JPH0761774B2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2021000862A (en) * 2019-06-19 2021-01-07 トヨタ自動車株式会社 Heat shielding structure of vehicle propeller shaft
CA3157241A1 (en) * 2019-11-07 2021-05-14 Lusetti, Lea A universal joint with improved stiffness

Also Published As

Publication number Publication date
JPH0274416A (en) 1990-03-14

Similar Documents

Publication Publication Date Title
EP0317249B1 (en) Swivelable connector for tubular conduits
US6186561B1 (en) Retainer for piping connector
US5632568A (en) Automatic uncocking shaft sensing coupler
EP0092669B1 (en) Power takeoff yoke shielding and engaging means
US4645372A (en) Power transmitting coupling
US4648499A (en) Release bearing mounting
US6666614B2 (en) Automatic latching lockout shaft sensing coupler
US4169686A (en) Quick release coupling for connection between shafts
EP0044691B1 (en) A clutch release mechanism for a pull type clutch
JPH0130012B2 (en)
GB2056618A (en) Shaft coupling
US3992120A (en) Shaft coupling
JPH066966B2 (en) Clutch release bearing
JPH0761774B2 (en) Propeller shaft cover
US4712659A (en) Adjustable clutch brake apparatus
JPS60245837A (en) Friction clutch-releasing mechanism
JP2583293B2 (en) Cover for propeller shaft
US4733764A (en) Clutch release bearing assembly
JPH07742Y2 (en) Propeller shaft cover
JP2675107B2 (en) Cover for propeller shaft
GB1535088A (en) Clutch release bearing assembly for diaphragm clutches
JP2675099B2 (en) Cover for propeller shaft
JPH0629621B2 (en) Clutch bearing device
JPS61223334A (en) Alignment bearing aggregate
JPH0255644B2 (en)

Legal Events

Date Code Title Description
S533 Written request for registration of change of name

Free format text: JAPANESE INTERMEDIATE CODE: R313533

R350 Written notification of registration of transfer

Free format text: JAPANESE INTERMEDIATE CODE: R350

FPAY Renewal fee payment (prs date is renewal date of database)

Year of fee payment: 12

Free format text: PAYMENT UNTIL: 20070705

FPAY Renewal fee payment (prs date is renewal date of database)

Free format text: PAYMENT UNTIL: 20080705

Year of fee payment: 13

LAPS Cancellation because of no payment of annual fees