JP2003097731A - Structure for preventing invasion of water into boot for universal joint - Google Patents
Structure for preventing invasion of water into boot for universal jointInfo
- Publication number
- JP2003097731A JP2003097731A JP2001298379A JP2001298379A JP2003097731A JP 2003097731 A JP2003097731 A JP 2003097731A JP 2001298379 A JP2001298379 A JP 2001298379A JP 2001298379 A JP2001298379 A JP 2001298379A JP 2003097731 A JP2003097731 A JP 2003097731A
- Authority
- JP
- Japan
- Prior art keywords
- boot
- universal joint
- water
- seal member
- fitting portion
- 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.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
- F16D3/84—Shrouds, e.g. casings, covers; Sealing means specially adapted therefor
- F16D3/843—Shrouds, e.g. casings, covers; Sealing means specially adapted therefor enclosed covers
- F16D3/845—Shrouds, e.g. casings, covers; Sealing means specially adapted therefor enclosed covers allowing relative movement of joint parts due to the flexing of the cover
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing Devices (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明はプロペラシャフト等
に用いられる自在継手用ブーツの水等浸入防止構造に関
する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for preventing invasion of water etc. in a universal joint boot used for a propeller shaft or the like.
【０００２】[0002]
【従来の技術】従来の車両において、エンジンの出力を
後輪に伝達するプロペラシャフトは軸方向に分割され、
分割された前後の軸を自在継手で連結している。そし
て、自在継手のアウタとインナの接続空間へのダスト、
泥水等の浸入を防止するためのブーツを用い、ブーツの
一端部をインナに嵌着し、他端部をアウタに嵌着して取
付けることとしている。2. Description of the Related Art In a conventional vehicle, a propeller shaft that transmits engine output to rear wheels is divided in an axial direction,
The divided front and rear shafts are connected by a universal joint. And dust to the connection space between the outer and inner of the universal joint,
A boot is used to prevent the intrusion of muddy water, and one end of the boot is fitted to the inner and the other end is fitted to the outer.
【０００３】従来技術では、自在継手の発熱による温度
変化に基づくブーツの内圧変化、自在継手のスライドに
基づくブーツの内圧変化に対し、ブーツの異常拡縮、破
損を回避するため、ブーツのインナへの嵌合部にブーツ
の内外を連通させる溝状の内圧調整用連通路を設けてい
る（特開平8-28704）。In the prior art, in order to avoid abnormal expansion and contraction of the boot and damage to the inner of the boot due to changes in the internal pressure of the boot due to temperature changes due to heat generation of the universal joint and changes in the internal pressure of the boot due to sliding of the universal joint, the boot inner layer is prevented. The fitting portion is provided with a groove-shaped internal pressure adjusting communication passage that communicates the inside and outside of the boot (JP-A-8-28704).
【０００４】[0004]
【発明が解決しようとする課題】従来技術では、ブーツ
のインナへの嵌合部で、連通路が開口している端面が外
界に広く露出しており、車両の走行や高圧洗車に伴なっ
てかかる水が上記連通路からブーツの内部に浸入し易
い。ブーツの内部に浸入する水が多い場合には、自在継
手の錆発生等により継手機能を損なう。In the prior art, in the fitting portion of the boot to the inner, the end face where the communication passage is open is widely exposed to the outside, and is associated with running of the vehicle and high-pressure car washing. Such water easily enters the inside of the boot through the communication passage. If a large amount of water penetrates inside the boot, the joint function will be impaired due to the occurrence of rust in the universal joint.
【０００５】本発明の課題は、自在継手用ブーツにおい
て、被取付部材への嵌合部の端面に設けた内圧調整用連
通路からの水等の浸入を防止することにある。An object of the present invention is to prevent water and the like from entering the universal joint boot through the internal pressure adjusting communication passage provided on the end face of the fitting portion to the member to be attached.
【０００６】[0006]
【課題を解決するための手段】請求項１の発明は、自在
継手の接続空間を密封するブーツの一端部を被取付部材
に嵌着して取付けるに際し、ブーツの被取付部材への嵌
合部の端面に該ブーツの内外を連通させる連通路を設け
てなり、被取付部材におけるブーツの嵌合部に対する側
傍に、該被取付部材に装填されるセンタベアリングの水
封のためのシール部材を設けてなる自在継手用ブーツの
水等浸入防止構造において、シール部材の被取付部材に
沿う軸方向の延長部に、ブーツの嵌合部の端面に対向す
る遮蔽部を設けたものである。According to a first aspect of the present invention, when one end portion of a boot that seals a connection space of a universal joint is fitted and attached to a member to be attached, the fitting portion of the boot to the member to be attached is attached. Is provided with a communication passage for communicating the inside and outside of the boot, and a seal member for sealing the water of the center bearing loaded in the mounted member is provided on the side of the mounted member with respect to the fitting portion of the boot. In the structure for preventing penetration of water, etc., of a boot for a universal joint that is provided, a shielding portion facing the end surface of the fitting portion of the boot is provided at an axial extension of the seal member along the attached member.
【０００７】請求項２の発明は、請求項１の発明におい
て更に、前記シール部材の遮蔽部がブーツの嵌合部の周
囲に被着されるものである。According to a second aspect of the invention, in addition to the first aspect of the invention, the shielding portion of the seal member is attached to the periphery of the fitting portion of the boot.
【０００８】請求項３の発明は、請求項１又は２の発明
において更に、前記シール部材がセンタベアリングの位
置決めのためのストッパピースに嵌着されるものであ
る。According to a third aspect of the present invention, in addition to the first or second aspect of the invention, the seal member is fitted to a stopper piece for positioning the center bearing.
【０００９】[0009]
【作用】センタベアリングの水封のためのシール部材に
設けた遮蔽部がブーツの被取付部材への嵌合部の端面に
対向してこれを外界から遮蔽し、この端面に設けられて
いる内圧調整用連通路への外界からの水等の直接的な浸
入を防止する。The shielding part provided on the seal member for sealing the water of the center bearing opposes the end face of the fitting part of the boot to the member to be attached and shields it from the outside world, and the internal pressure provided on this end face. Prevents direct ingress of water, etc. from the outside into the adjustment communication passage.
【００１０】[0010]
【発明の実施の形態】図１は第１実施形態の自在継手用
ブーツを示す断面図、図２は第２実施形態の自在継手用
ブーツを示す断面図、図３は図２の要部拡大図である。DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a sectional view showing a universal joint boot according to a first embodiment, FIG. 2 is a sectional view showing a universal joint boot according to a second embodiment, and FIG. It is a figure.
【００１１】（第１実施形態）（図１）図１は、エンジ
ン側の第１プロペラシャフト１１（不図示）と後輪側の
第２プロペラシャフト１２を、DOJ型の等速自在継手
（スライダブルジョイント）２０により連結した部分を
示している。(First Embodiment) (FIG. 1) FIG. 1 shows a first propeller shaft 11 (not shown) on the engine side and a second propeller shaft 12 on the rear wheel side, which are connected to a DOJ type constant velocity universal joint (slider). Double joints) 20 are shown to be connected.
【００１２】自在継手２０は、第１プロペラシャフト１
１に接続されたアウタ２１と、第２プロペラシャフト１
２に接続されたシャフトスタブ２２の先端部に形成した
インナ２３とを有し、ボール２４をインナ２３の外周面
とアウタ２１の内周面間の３ヵ所に設けた３条の溝２１
Ａに嵌入して構成される。The universal joint 20 is the first propeller shaft 1
Outer 21 connected to 1 and the second propeller shaft 1
The inner groove 23 is formed at the tip of the shaft stub 22 connected to the second groove 2, and the balls 24 are provided at three positions between the outer peripheral surface of the inner member 23 and the inner peripheral surface of the outer member 21.
It is configured by fitting in A.
【００１３】第２プロペラシャフト１２のシャフトスタ
ブ２２は、大径部２２Ａから先端部のインナ２３に向け
て中径部２２Ｂ、小径部２２Ｃの如くに順に小径化し、
小径部２２Ｃに装填したセンタベアリング２５を介して
環状支持部材３０に回転自在に支持されている。The shaft stub 22 of the second propeller shaft 12 is gradually reduced in diameter from the large diameter portion 22A toward the inner portion 23 at the tip portion, such as the medium diameter portion 22B and the small diameter portion 22C,
It is rotatably supported by the annular support member 30 via a center bearing 25 loaded in the small diameter portion 22C.
【００１４】環状支持部材３０は、内環３１と外環３２
（不図示）をゴム状弾性部材３３を介して接合したもの
であり、内環３１は大径部３１Ａ、中径部３１Ｂ、小径
部３１Ｃの如くに径を変えた円筒状をなし、中径部３１
Ｂの内側にセンタベアリング２５の外輪２５Ａを嵌合
し、大径部３１Ａはシャフトスタブ２２の大径部２２Ａ
の外周を覆う後方にまで延在し、小径部３１Ｃはシャフ
トスタブ２２の小径部２２Ｃの外周を覆う前方に延在し
ている。また、内環３１において、大径部３１Ａと小径
部３１Ｃの内周のそれぞれにはシール部材３４、３５が
装填され、両シール部材３４、３５はセンタベアリング
２５を両側からシールする。シール部材３４はセンタベ
アリング２５の前面側で後述するストッパピース４０の
外周に摺接し、シール部材３５はセンタベアリング２５
の後面側でシャフトスタブ２２の中径部２２Ｂの外周に
摺接する。The annular support member 30 includes an inner ring 31 and an outer ring 32.
(Not shown) is joined via a rubber-like elastic member 33, and the inner ring 31 has a cylindrical shape with different diameters such as a large diameter portion 31A, a medium diameter portion 31B, and a small diameter portion 31C. Part 31
The outer ring 25A of the center bearing 25 is fitted inside B, and the large diameter portion 31A is the large diameter portion 22A of the shaft stub 22.
Of the shaft stub 22, and the small-diameter portion 31C extends forward to cover the outer periphery of the small-diameter portion 22C of the shaft stub 22. Further, in the inner ring 31, seal members 34 and 35 are loaded on the inner circumferences of the large diameter portion 31A and the small diameter portion 31C, respectively, and both seal members 34 and 35 seal the center bearing 25 from both sides. The seal member 34 is in sliding contact with the outer periphery of a stopper piece 40 described later on the front side of the center bearing 25, and the seal member 35 is the center bearing 25.
The rear surface of the shaft stub 22 is slidably contacted with the outer periphery of the medium diameter portion 22B.
【００１５】自在継手２０にあっては、環状支持部材３
０の内環３１に嵌合されたセンタベアリング２５をシャ
フトスタブ２２の小径部２２Ｃに装填し、この状態で、
シャフトスタブ２２の小径部２２Ｃにストッパピース４
０を圧入する。ストッパピース４０の後端部はシール部
材３４の内側を貫通してセンタベアリング２５の前端面
に衝合する。これにより、センタベアリング２５の内輪
２５Ｂの後端面がシャフトスタブ２２の中径部２２Ｂの
肩面に当接して位置決めされ、内輪２５Ｂの前端面がス
トッパピース４０の後端面に押圧されて位置決めされ
る。In the universal joint 20, the annular support member 3
The center bearing 25 fitted to the inner ring 31 of 0 is loaded on the small diameter portion 22C of the shaft stub 22, and in this state,
The stopper piece 4 is attached to the small diameter portion 22C of the shaft stub 22.
Press 0. The rear end portion of the stopper piece 40 penetrates the inside of the seal member 34 and abuts against the front end surface of the center bearing 25. As a result, the rear end surface of the inner ring 25B of the center bearing 25 contacts the shoulder surface of the medium diameter portion 22B of the shaft stub 22 and is positioned, and the front end surface of the inner ring 25B is pressed against the rear end surface of the stopper piece 40 to be positioned. .
【００１６】ストッパピース４０のセンタベアリング２
５に当接する側と反対側の端部まわりにはシール部材４
１が圧入嵌着される。シール部材４１は、金属製L字断
面状芯金４２の全面を被覆するゴムを焼付けて構成され
る。シール部材４１は、芯金４２の周壁４２Ａの外周に
おいて中央に薄肉状に設けられた溝状部４１Ｃを挟む前
後に大径環部４１Ａを、後側に小径環部４１Ｂを備え
る。大径環部４１Ａの外径は環状支持部材３０の内環３
１の小径部３１Ｃより大きく、小径環部４１Ｂの外径は
小径部３１Ｃより小さい。また、芯金４２の環状側壁４
２Ｂの内周縁から前方へテーパ状突片４１Ｄが後述する
インナ２３のつなぎ部２３Ｂに沿うように突出してい
る。Center bearing 2 of stopper piece 40
The seal member 4 is provided around the end portion on the side opposite to the side in contact with
1 is press fitted. The seal member 41 is formed by baking rubber that covers the entire surface of the metal L-shaped cross-section cored bar 42. The seal member 41 includes a large-diameter ring portion 41A before and after sandwiching a groove-like portion 41C that is thinly provided in the center on the outer circumference of the peripheral wall 42A of the core metal 42, and a small-diameter ring portion 41B on the rear side. The outer diameter of the large-diameter ring portion 41A is the inner ring 3 of the ring-shaped support member 30.
1 is smaller than the small diameter portion 31C, and the outer diameter of the small diameter ring portion 41B is smaller than the small diameter portion 31C. In addition, the annular side wall 4 of the cored bar 42
A tapered protrusion 41D protrudes forward from the inner peripheral edge of 2B along a joint portion 23B of an inner 23, which will be described later.
【００１７】シール部材４１が圧入嵌着されたストッパ
ピース４０がシャフトスタブ２２の小径部２２Ｃに圧入
されると、シール部材４１の小径環部４１Ｂが環状支持
部材３０の内環３１の小径部３１Ｃに入り込み、大径環
部４１Ａが内環３１の前端開口を覆う。大径環部４１Ａ
がセンタベアリング２５を収容している内環３１の内部
への水の浸入を防止する。また、シール部材４１と内環
３１の隙間から浸入した水は、大径環部４１Ａと小径環
部４１Ｂの間の溝状部４１Ｃにガイドされて下方へ落下
し、内環３１の内部への水の浸入を阻止する。When the stopper piece 40 to which the seal member 41 is press-fitted is pressed into the small diameter portion 22C of the shaft stub 22, the small diameter ring portion 41B of the seal member 41 is pressed into the small diameter portion 31C of the inner ring 31 of the annular support member 30. The large-diameter ring portion 41A covers the front end opening of the inner ring 31. Large diameter ring 41A
Prevents water from entering the inside of the inner ring 31 housing the center bearing 25. Further, the water that has entered through the gap between the seal member 41 and the inner ring 31 is guided downward by the groove-shaped portion 41C between the large-diameter ring portion 41A and the small-diameter ring portion 41B, and falls into the inner ring 31. Prevents ingress of water.
【００１８】更に、自在継手２０にあっては、アウタ２
１とインナ２３の接続空間５０を、金属薄板からなるブ
ーツアダプタ５１とゴム状弾性体からなるブーツ５２を
用いて密封し、ボ−ル２４の摺動性、耐久性を向上する
ためのグリースをこの接続空間５０に封入する。Further, in the universal joint 20, the outer 2
The connection space 50 between the inner ring 1 and the inner 23 is sealed by using a boot adapter 51 made of a thin metal plate and a boot 52 made of a rubber-like elastic body, and grease for improving slidability and durability of the ball 24 is provided. It is enclosed in this connection space 50.
【００１９】即ち、アウタ２１の外周に設けたＯリング
等のシール部材５３まわりに、ブーツアダプタ５１の基
部５１Ａを挿着して加締固定するとともに、ブーツアダ
プタ５１の先端部５１Ｂに抱着する如くに設けたブーツ
５２をインナ２３の外周嵌着部２３Ａに嵌着し、ブーツ
バンド５４で被着固定している。That is, the base 51A of the boot adapter 51 is inserted and fixed around the seal member 53 such as an O-ring provided on the outer periphery of the outer 21 by caulking, and is attached to the tip 51B of the boot adapter 51. The boot 52 thus provided is fitted to the outer peripheral fitting portion 23A of the inner 23, and is fixed by the boot band 54.
【００２０】ここで、ブーツ５２のインナ２３の外周嵌
着部２３Ａに嵌着される嵌合部５２Ａの内周の１以上の
位置で、その軸方向に延在して該ブーツ５２の内外を通
気可能に連通させるための溝状連通路５５を設け、連通
路５５を嵌合部５２Ａの端面に開口している。ブーツ５
２の嵌合部５２Ａの端面の半径方向範囲のうち、連通路
５５の溝深さの範囲は、シャフトスタブ２２のインナ２
３において嵌合部５２Ａが嵌着される嵌着部２３Ａの後
方で小径部２２Ｃにつながるつなぎ部２３Ｂが、嵌着部
２３Ａに対してなす段差側面に衝合可能に相対するよう
に設定される。連通路５５は、自在継手２０の発熱によ
る温度変化に基づくブーツ５２の内圧変化、自在継手２
０のスライドに基づくブーツ５２の内圧変化に対し、ブ
ーツ５２の異常拡縮、破損を回避するため、ブーツ５２
（接続空間５０）の内圧を調整可能とする。Here, at one or more positions on the inner circumference of the fitting portion 52A fitted to the outer circumference fitting portion 23A of the inner 23 of the boot 52, the boot 52 extends inside and outside thereof in the axial direction. A groove-shaped communication passage 55 is provided for communicating with each other so as to allow ventilation, and the communication passage 55 is opened at the end surface of the fitting portion 52A. Boots 5
Of the radial range of the end surface of the second fitting portion 52A, the range of the groove depth of the communication passage 55 is the inner 2 of the shaft stub 22.
3, the connecting portion 23B connected to the small diameter portion 22C behind the fitting portion 23A to which the fitting portion 52A is fitted is set so as to be capable of abutting against the side surface of the step formed with respect to the fitting portion 23A. . The communication passage 55 is provided for the internal pressure change of the boot 52 based on the temperature change due to the heat generation of the universal joint 20, and the universal joint 2
In order to avoid the abnormal expansion and contraction and damage of the boot 52 in response to the change in the internal pressure of the boot 52 due to the slide of 0,
The internal pressure of (connection space 50) can be adjusted.
【００２１】しかるに、自在継手２０にあっては、前述
の如く、第２プロペラシャフト１２のシャフトスタブ２
２のインナ２３におけるブーツ５２の嵌合部５２Ａに対
する側傍に、該シャフトスタブ２２に装填されるセンタ
ベアリング２５の位置決めのためのストッパピース４０
を設け、かつセンタベアリング２５の水封のためのシー
ル部材４１をストッパピース４０に嵌着している。However, in the universal joint 20, as described above, the shaft stub 2 of the second propeller shaft 12 is used.
A stopper piece 40 for positioning the center bearing 25 loaded on the shaft stub 22 beside the fitting portion 52A of the boot 52 in the second inner 23.
And a seal member 41 for sealing the center bearing 25 with water is fitted to the stopper piece 40.
【００２２】そして、自在継手２０にあっては、シール
部材４１のテーパ状突片４１Ｄからシャフトスタブ２２
に沿う軸方向の延長部で、ブーツ５２の嵌合部５２Ａの
端面の近接部に、ブーツ５２の嵌合部５２Ａの端面の広
い範囲に対向する環状膨出状の遮蔽部６１を設けた。遮
蔽部６１は、シャフトスタブ２２のインナ２３において
小径部２２Ｃにつながる上述のつなぎ部２３Ｂの外周に
配置される。遮蔽部６１は、インナ２３の軸方向視で、
インナ２３に嵌着されているブーツ５２の嵌合部５２Ａ
の端面の半径方向範囲のうち、連通路５５の溝底位置よ
り大径をなす外方範囲まで及ぶことを必須とする。In the universal joint 20, the taper-shaped projection piece 41D of the seal member 41 is moved to the shaft stub 22.
An annular bulging shield portion 61 is provided in the vicinity of the end surface of the fitting portion 52A of the boot 52, which is an axially extended portion of the boot 52 and faces a wide range of the end surface of the fitting portion 52A of the boot 52. The shielding portion 61 is arranged on the outer periphery of the above-mentioned joint portion 23B connected to the small diameter portion 22C in the inner 23 of the shaft stub 22. The shield 61 is viewed in the axial direction of the inner 23,
Fitting portion 52A of the boot 52 fitted to the inner 23
It is essential that the radial range of the end surface extends to an outer range having a diameter larger than the groove bottom position of the communication passage 55.
【００２３】本実施形態によれば、以下の作用がある。
センタベアリング２５の水封のためのシール部材４１
に設けた遮蔽部６１がブーツ５２のインナ２３への嵌合
部５２Ａの端面に対向してこれを外界から遮蔽し、この
端面に設けられている内圧調整用連通路５５への外界か
らの車両の走行や高圧洗車に伴う水等の直接的な浸入を
防止する。According to this embodiment, there are the following effects. Sealing member 41 for water-sealing the center bearing 25
The shield portion 61 provided at the end faces the end surface of the fitting portion 52A of the boot 52 that is fitted to the inner 23, shields the end surface from the outside, and the vehicle from the outside to the internal pressure adjusting communication passage 55 provided at this end surface. Prevents direct ingress of water, etc., associated with driving and high-pressure car washing.
【００２４】シール部材４１がセンタベアリング２５
の位置決めのためのストッパピース４０に嵌着されるか
ら、ストッパピース４０とシール部材４１の組付性を簡
略化できる。The seal member 41 is the center bearing 25.
Since it is fitted to the stopper piece 40 for positioning, the assembling property of the stopper piece 40 and the seal member 41 can be simplified.
【００２５】（第２実施形態）（図２、図３）
第２実施形態が第１実施形態と異なる点は、シール部材
４１に設けた遮蔽部６１を、舌片状の遮蔽部７１に代え
たことにある。(Second Embodiment) (FIGS. 2 and 3) The second embodiment differs from the first embodiment in that the shield 61 provided on the seal member 41 is replaced with a tongue-shaped shield 71. There is something.
【００２６】遮蔽部７１は、シール部材４１のテーパ状
突片４１Ｄからシャフトスタブ２２に沿う軸方向の延長
部に設けられ、ブーツ５２の嵌合部５２Ａの周囲に被着
される弾性筒状をなす。遮蔽部７１は、シャフトスタブ
２２のインナ２３において小径部２２Ｃにつながる上述
のつなぎ部２３Ｂの外周からブーツ５２の嵌合部５２Ａ
の外周にまで延在可能とされ、ブーツ５２の嵌合部５２
Ａが前述の嵌着部２３Ａに嵌着される前段階では大径環
部４１Ａの側に反転待機され、ブーツ５２の嵌合部５２
Ａが嵌着部２３Ａに嵌着された後に反転解除されるとと
もに大きく拡径される過程を経てブーツ５２の嵌合部５
２Ａの外周に被着される。The shield portion 71 is provided in an axially extending portion extending from the tapered protrusion 41D of the seal member 41 along the shaft stub 22, and has an elastic cylindrical shape to be fitted around the fitting portion 52A of the boot 52. Eggplant The shielding portion 71 includes the fitting portion 52A of the boot 52 from the outer periphery of the above-mentioned joint portion 23B connected to the small diameter portion 22C in the inner 23 of the shaft stub 22.
The fitting portion 52 of the boot 52 can be extended to the outer periphery of the boot 52.
At a stage before A is fitted to the fitting portion 23A, it is turned over to the large-diameter ring portion 41A side, and is fitted to the fitting portion 52 of the boot 52.
After A is fitted into the fitting portion 23A, it is released from being reversed and the diameter of the fitting A is greatly expanded.
It is attached to the outer circumference of 2A.
【００２７】遮蔽部７１は、図３に示す如く、ブーツ５
２の内外を、ブーツ５２の連通路５５を介して通気可能
に連通されるための溝状連通路７２を該遮蔽部７１の内
周の１以上の位置でその軸方向に延在して備え、連通路
７２を遮蔽部７１の自由端の端面に開口している。As shown in FIG. 3, the shield portion 71 is used for the boot 5.
A groove-shaped communication passage 72 for communicating the inside and outside of the boot 2 through the communication passage 55 of the boot 52 so as to be ventilated is provided at one or more positions on the inner circumference of the shielding portion 71 so as to extend in the axial direction thereof. The communication passage 72 is opened at the end surface of the free end of the shield 71.
【００２８】本実施形態によれば、以下の作用がある。
遮蔽部７１がブーツ５２の嵌合部５２Ａの周囲に被着さ
れるから、嵌合部５２Ａの端面に設けられている連通路
５５への水の浸入をより確実に防止できる。According to this embodiment, there are the following effects.
Since the shielding portion 71 is attached around the fitting portion 52A of the boot 52, it is possible to more reliably prevent water from entering the communication passage 55 provided at the end surface of the fitting portion 52A.
【００２９】以上、本発明の実施の形態を図面により記
述したが、本発明の具体的な構成はこの実施の形態に限
られるものではなく、本発明の要旨を逸脱しない範囲の
設計の変更等があっても本発明に含まれる。Although the embodiments of the present invention have been described above with reference to the drawings, the specific structure of the present invention is not limited to these embodiments, and changes in design within the scope not departing from the gist of the present invention. Even so, it is included in the present invention.
【００３０】[0030]
【発明の効果】以上のように本発明によれば、自在継手
用ブーツにおいて、被取付部材への嵌合部の端面に設け
た内圧調整用連通路からの水等の直接的な浸入を防止す
ることができる。As described above, according to the present invention, in the universal joint boot, direct entry of water or the like from the internal pressure adjusting communication passage provided at the end surface of the fitting portion to the member to be attached is prevented. can do.
【図１】図１は第１実施形態の自在継手用ブーツを示す
断面図である。FIG. 1 is a sectional view showing a boot for a universal joint according to a first embodiment.
【図２】図２は第２実施形態の自在継手用ブーツを示す
断面図である。FIG. 2 is a cross-sectional view showing a universal joint boot according to a second embodiment.
【図３】図３は図２の要部拡大図である。FIG. 3 is an enlarged view of a main part of FIG.
２０ 自在継手 ２３ インナ（被取付部材） ２５ センタベアリング ４０ ストッパピース ４１ シール部材 ５０ 接続空間 ５２ ブーツ ５２Ａ 嵌合部 ５５ 連通路 ６１、７１ 遮蔽部 20 Universal 23 Inner (attached member) 25 center bearing 40 stopper piece 41 Seal member 50 connection space 52 boots 52A fitting part 55 communication passage 61, 71 Shield
Claims (3)
一端部を被取付部材に嵌着して取付けるに際し、ブーツ
の被取付部材への嵌合部の端面に該ブーツの内外を連通
させる連通路を設けてなり、 被取付部材におけるブーツの嵌合部に対する側傍に、該
被取付部材に装填されるセンタベアリングの水封のため
のシール部材を設けてなる自在継手用ブーツの水等浸入
防止構造において、 シール部材の被取付部材に沿う軸方向の延長部に、ブー
ツの嵌合部の端面に対向する遮蔽部を設けたことを特徴
とする自在継手用ブーツの水等浸入防止構造。1. When connecting one end of a boot for sealing a connection space of a universal joint to a member to be mounted by fitting the boot, the end face of the fitting portion of the boot to the member to be mounted communicates the inside and outside of the boot. A passage is provided, and a seal member for sealing the water of the center bearing loaded in the member to be attached is provided on the side of the member to be attached to the fitting portion of the boot. In the preventive structure, a shield part facing the end face of the fitting part of the boot is provided at an axially extending part of the seal member along the mounted member, and the invasion preventive structure of the boot for universal joint is provided.
部の周囲に被着される請求項１に記載の自在継手用ブー
ツの水等浸入防止構造。2. The structure for preventing water from entering the boot for a universal joint according to claim 1, wherein the shielding portion of the seal member is attached to the periphery of the fitting portion of the boot.
置決めのためのストッパピースに嵌着される請求項１又
は２に記載の自在継手用ブーツの水等浸入防止構造。3. The structure for preventing intrusion of water etc. of a boot for a universal joint according to claim 1, wherein the seal member is fitted to a stopper piece for positioning a center bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001298379A JP4875815B2 (en) | 2001-09-27 | 2001-09-27 | Structure for preventing intrusion of water etc. in universal joint boots |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001298379A JP4875815B2 (en) | 2001-09-27 | 2001-09-27 | Structure for preventing intrusion of water etc. in universal joint boots |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2003097731A true JP2003097731A (en) | 2003-04-03 |
| JP4875815B2 JP4875815B2 (en) | 2012-02-15 |
Family
ID=19119289
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001298379A Expired - Fee Related JP4875815B2 (en) | 2001-09-27 | 2001-09-27 | Structure for preventing intrusion of water etc. in universal joint boots |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4875815B2 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005180618A (en) * | 2003-12-19 | 2005-07-07 | Showa Corp | Water entry prevention structure of boot for universal joint |
| JP2006329276A (en) * | 2005-05-24 | 2006-12-07 | Showa Corp | Propeller shaft supporting structure |
| JP2007118836A (en) * | 2005-10-28 | 2007-05-17 | Showa Corp | Propeller shaft supporting structure |
| JP2007145161A (en) * | 2005-11-28 | 2007-06-14 | Showa Corp | Propeller shaft supporting structure |
| JP2007309464A (en) * | 2006-05-19 | 2007-11-29 | Showa Corp | Propeller shaft for automobile |
| JP2008528888A (en) * | 2005-01-26 | 2008-07-31 | ジーケーエヌ・ドライブライン・ノースアメリカ・インコーポレーテッド | Joint boots |
| US8834279B2 (en) | 2012-03-14 | 2014-09-16 | Dana Automotive Systems Group, Llc | Shaft assembly for a constant velocity joint |
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| JPH0410126A (en) * | 1990-04-27 | 1992-01-14 | Nec Home Electron Ltd | Display controller |
| JPH0510342A (en) * | 1990-10-19 | 1993-01-19 | Loehr & Bromkamp Gmbh | Roll type or corrugated type bellows for rotary type uniform coupling having pressure compensating section in coupling space |
| JP2000170759A (en) * | 1998-12-10 | 2000-06-20 | Showa Corp | Propeller shaft supporting structure |
| JP2001063391A (en) * | 1999-08-31 | 2001-03-13 | Unisia Jecs Corp | Power transmission shaft |
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2001
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| JPS61117921A (en) * | 1984-11-13 | 1986-06-05 | Nec Corp | Logical array integrated circuit |
| JPH0410126A (en) * | 1990-04-27 | 1992-01-14 | Nec Home Electron Ltd | Display controller |
| JPH0510342A (en) * | 1990-10-19 | 1993-01-19 | Loehr & Bromkamp Gmbh | Roll type or corrugated type bellows for rotary type uniform coupling having pressure compensating section in coupling space |
| JP2000170759A (en) * | 1998-12-10 | 2000-06-20 | Showa Corp | Propeller shaft supporting structure |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005180618A (en) * | 2003-12-19 | 2005-07-07 | Showa Corp | Water entry prevention structure of boot for universal joint |
| JP2008528888A (en) * | 2005-01-26 | 2008-07-31 | ジーケーエヌ・ドライブライン・ノースアメリカ・インコーポレーテッド | Joint boots |
| JP4928469B2 (en) * | 2005-01-26 | 2012-05-09 | ジーケーエヌ・ドライブライン・ノースアメリカ・インコーポレーテッド | Joint boots |
| DE112006000254B4 (en) | 2005-01-26 | 2018-10-11 | Gkn Driveline North America, Inc. | joint boot |
| JP2006329276A (en) * | 2005-05-24 | 2006-12-07 | Showa Corp | Propeller shaft supporting structure |
| JP2007118836A (en) * | 2005-10-28 | 2007-05-17 | Showa Corp | Propeller shaft supporting structure |
| JP4739913B2 (en) * | 2005-10-28 | 2011-08-03 | 株式会社ショーワ | Propeller shaft support structure |
| JP2007145161A (en) * | 2005-11-28 | 2007-06-14 | Showa Corp | Propeller shaft supporting structure |
| JP4690181B2 (en) * | 2005-11-28 | 2011-06-01 | 株式会社ショーワ | Propeller shaft support structure |
| JP2007309464A (en) * | 2006-05-19 | 2007-11-29 | Showa Corp | Propeller shaft for automobile |
| JP4685706B2 (en) * | 2006-05-19 | 2011-05-18 | 株式会社ショーワ | Propeller shaft for automobile |
| US8834279B2 (en) | 2012-03-14 | 2014-09-16 | Dana Automotive Systems Group, Llc | Shaft assembly for a constant velocity joint |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4875815B2 (en) | 2012-02-15 |
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