JPH0356693Y2 - - Google Patents
Info
- Publication number
- JPH0356693Y2 JPH0356693Y2 JP1986196822U JP19682286U JPH0356693Y2 JP H0356693 Y2 JPH0356693 Y2 JP H0356693Y2 JP 1986196822 U JP1986196822 U JP 1986196822U JP 19682286 U JP19682286 U JP 19682286U JP H0356693 Y2 JPH0356693 Y2 JP H0356693Y2
- Authority
- JP
- Japan
- Prior art keywords
- ferrule
- dust cover
- attached
- sealing
- main body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000000428 dust Substances 0.000 claims description 34
- 238000007789 sealing Methods 0.000 claims description 33
- 239000000725 suspension Substances 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 239000002184 metal Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000004519 grease Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C11/00—Pivots; Pivotal connections
- F16C11/04—Pivotal connections
- F16C11/06—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints
- F16C11/0666—Sealing means between the socket and the inner member shaft
- F16C11/0671—Sealing means between the socket and the inner member shaft allowing operative relative movement of joint parts due to flexing of the sealing means
-
- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C11/00—Pivots; Pivotal connections
- F16C11/04—Pivotal connections
- F16C11/06—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints
- F16C11/0619—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints the female part comprising a blind socket receiving the male part
- F16C11/0623—Construction or details of the socket member
- F16C11/0628—Construction or details of the socket member with linings
-
- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2326/00—Articles relating to transporting
- F16C2326/01—Parts of vehicles in general
- F16C2326/05—Vehicle suspensions, e.g. bearings, pivots or connecting rods used therein
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pivots And Pivotal Connections (AREA)
- Sealing Devices (AREA)
Description
【考案の詳細な説明】
（産業上の利用分野）
本考案は、たとえば自動車の独立懸架装置のボ
ールジヨイント部に用いられるダストカバーに関
する。[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a dust cover used, for example, in a ball joint portion of an independent suspension system of an automobile.
（従来の技術）
従来、この種のダストカバーとして、たとえば
第３図に示すような自動車の独立懸架装置のボー
ルジヨイントについて説明すると、１００はダス
トカバーを示しており、このダストカバー１００
はナツクルアーム１０１に固定したボールスタツ
ド１０２に嵌着されるフエルール１０３と、フエ
ルール１０３に一方の口縁部１０４が嵌合される
蛇腹状のダストカバー本体１０５とから成つてい
る。ダストカバー本体１０５の他方の口縁部１０
６はボールスタツド１０２のボール１０２ａが球
面接触するソケツト１０７が設けられたサスペン
シヨンロアアーム１０８の取付座部１０９に嵌着
されている。上記フエルール１０３に嵌合される
ダストカバー本体１０５の口縁部１０４にはフエ
ルール１０３に密接するリツプ１０４ａが設けら
れていて、フエルール１０３と口縁部１０４との
間を密封している。フエルール１０３はボールス
タツド１０２に嵌着する筒状部１１０と、筒状部
１１０の上下端から半径方向外方に直角に張り出
す上端フランジ１１１と下端フランジ１１２とに
よつて断面コ字状に形成されていて、上端フラン
ジ１１１がナツクルアーム１０１に水密に面接触
すると共に、筒状部１１０内周がボールスタツド
１０２に水密に嵌着されていた。(Prior Art) Conventionally, as a dust cover of this type, for example, a ball joint of an independent suspension system of an automobile as shown in FIG. 3 will be explained.
It consists of a ferrule 103 that is fitted onto a ball stud 102 fixed to a knuckle arm 101, and a bellows-shaped dust cover body 105 that has one edge 104 fitted into the ferrule 103. The other edge 10 of the dust cover main body 105
6 is fitted into a mounting seat 109 of a suspension lower arm 108 provided with a socket 107 with which a ball 102a of a ball stud 102 makes spherical contact. A lip 104a that comes into close contact with the ferrule 103 is provided on the lip 104 of the dust cover main body 105 that is fitted into the ferrule 103, thereby sealing the gap between the ferrule 103 and the mouth edge 104. The ferrule 103 is formed into a U-shaped cross section by a cylindrical part 110 that fits into the ball stud 102, and an upper end flange 111 and a lower end flange 112 that protrude from the upper and lower ends of the cylindrical part 110 at right angles to the outside in the radial direction. The upper end flange 111 was in watertight surface contact with the knuckle arm 101, and the inner periphery of the cylindrical portion 110 was fitted onto the ball stud 102 in a watertight manner.
（考案が解決しようとする問題点）
しかし斯かる従来例の場合には、フエルール１
０３とダストカバー本体１０５の口縁部１０４と
はゴム弾性によつてボールスタツド１０２の揺動
に追従して密封性能が維持できるものの、フエル
ール１０３の筒状部１１０とボールスタツド１０
２とは金属同志の嵌合であり、フエルール１０３
の上端フランジ１１１とナツクルアーム１０１と
は金属同志が接触しているだけなので、ボールス
タツド１０２の揺動作動により、フエルール１０
３の上端フランジ１１１とナツクルアーム１０１
間に隙間が生じやすく、水、ダスト等が浸入して
シール不良が発生するという問題があつた。また
筒状部１１０によつてシールされるとしても上端
フランジ１１１とナツクルアーム１０１間に浸入
した水、ダストによつて錆が発生し、長期間使用
するにつれて錆がボールスタツド１０２まで進行
して筒状部１１０とボールスタツド１０２の間の
シール不良を招き、ダストカバー本体１０５内部
に水等が浸入するという問題が生じる。(Problem that the invention attempts to solve) However, in the case of such a conventional example, ferrule 1
03 and the mouth edge 104 of the dust cover main body 105 can maintain sealing performance by following the swinging of the ball stud 102 due to their rubber elasticity.
2 is metal-to-metal fitting, and ferrule 103
Since the upper end flange 111 and the knuckle arm 101 are only in metal contact, the swinging movement of the ball stud 102 causes the ferrule 10 to
3 upper end flange 111 and knuckle arm 101
There was a problem in that gaps were likely to form between the two, allowing water, dust, etc. to enter, resulting in poor sealing. Further, even if the cylindrical part 110 seals, rust will occur due to water and dust that have entered between the upper end flange 111 and the knuckle arm 101, and as the rust progresses to the ball stud 102 over a long period of use, the cylindrical A problem arises in that the sealing between the part 110 and the ball stud 102 is poor, and water or the like infiltrates into the dust cover main body 105.
本考案は上記した従来技術の問題点を解決する
ためになされたもので、その目的とするところ
は、被取付部材に仕上げ加工を施す必要が無く、
しかもフエルールと被取付部材間のシール性能を
高め得るダストカバーを提供することにある。 The present invention was made to solve the problems of the prior art described above, and its purpose is to eliminate the need for finishing work on the member to be attached.
Moreover, it is an object of the present invention to provide a dust cover that can improve the sealing performance between the ferrule and the attached member.
（問題点を解決するための手段）
上記目的を達成するために、本考案にあつて
は、被取付部材に固定される環状のフエルール
と、該フエルールに相対回転可能に取り付けた円
筒状のダストカバー本体とを有し、上記フエルー
ルの被取付部材との接触部にゴム状弾性体製の環
状のシール部材を設けた。(Means for Solving the Problems) In order to achieve the above object, the present invention includes an annular ferrule fixed to a member to be attached, and a cylindrical dust ferrule attached to the ferrule so as to be relatively rotatable. The ferrule has a cover body, and an annular sealing member made of a rubber-like elastic body is provided at the contact portion of the ferrule with the member to be attached.
（作用）
而してシールリツプがフエルールに接触してシ
ール面を形成する。また、被取付部材とフエルー
ルとの接触部はシール部材によつてシールされ
る。シール部材は被取付部材に固定したフエルー
ルに設けてあるため、ダストカバー本体が回転し
たり撓んだりした場合でも動かず、いわゆるガス
ケツトとして機能する。(Operation) The seal lip then comes into contact with the ferrule to form a sealing surface. Further, the contact portion between the attached member and the ferrule is sealed by a sealing member. Since the sealing member is provided on a ferrule fixed to the attached member, it does not move even when the dust cover body rotates or bends, and functions as a so-called gasket.
（実施例）
以下に本考案を図示の実施例に基づいて説明す
る。本考案の一実施例に係るダストカバーを示す
第１図および第２図において、本実施例において
も自動車の独立懸架装置のボールジヨイントを保
護するダストカバーについて説明すると、１はダ
ストカバーを示していて、ナツクルアーム２にナ
ツト３によつて直角に固定した被取付部材として
のボールスタツド４に固定される環状で薄肉のフ
エルール５と、一方の口縁部７１をフエルール５
の嵌合溝６に取り付けたゴム状弾性体製の円筒状
のダストカバー本体７とから成つている。(Example) The present invention will be explained below based on the illustrated example. In FIGS. 1 and 2 showing a dust cover according to an embodiment of the present invention, the dust cover that protects the ball joint of an independent suspension system of an automobile will also be described. Reference numeral 1 indicates the dust cover. The ball stud 4 is fixed to the nut 3 at right angles to the nut 3, and the annular thin-walled ferrule 5 is attached to the ferrule 5.
and a cylindrical dust cover main body 7 made of a rubber-like elastic body attached to a fitting groove 6 of the dust cover body 7.
フエルール５は金属製でボールスタツド４の軸
部４１に嵌合される筒状部５１と、筒状部５１の
上、下端から半径方向外方に全周にわたつて張り
出す大径の上端フランジ５２と小径の下端フラン
ジ５３とから成つている。而して筒状部５１と
上、下端フランジ５２，５３とによつて断面コ字
状の嵌合溝６を構成している。この口縁部７１は
上記フエルール５に対して相対回転可能となつて
いて、フエルール５の上端フランジ５２および筒
状部５１との接触部にはシールリツプ７１ａ，…
がそれぞれ密封接触していて摺動抵抗を低減する
ためにグリースが塗布されている。 The ferrule 5 is made of metal and includes a cylindrical part 51 that is fitted onto the shaft part 41 of the ball stud 4, and a large diameter upper end flange that protrudes radially outward from the upper and lower ends of the cylindrical part 51 over the entire circumference. 52 and a small diameter lower end flange 53. The cylindrical portion 51 and the upper and lower end flanges 52 and 53 constitute a fitting groove 6 having a U-shaped cross section. The mouth edge portion 71 is rotatable relative to the ferrule 5, and seal lips 71a, .
are in sealing contact with each other and are coated with grease to reduce sliding resistance.
上記フエルール５の上端フランジ５２の被取付
部材としてのナツクルアーム２表面との接触部に
はゴム状弾性体製のシール部材８が設けられてい
る。このシール部材８は扁平な環状部材で、本実
施例では上端フランジ５２のフランジ上面の半径
方向の略全幅にわたつて焼付けられている。シー
ル部材８には内径側から外径側に向つて所定の間
隔をあけて同心上に形成される環状突起８ａ，８
ａ，…が設けられている。 A sealing member 8 made of a rubber-like elastic body is provided at a portion of the upper end flange 52 of the ferrule 5 that comes into contact with the surface of the knuckle arm 2 as a member to be attached. This sealing member 8 is a flat annular member, and in this embodiment, it is baked over substantially the entire width in the radial direction of the upper surface of the upper end flange 52 . The sealing member 8 has annular protrusions 8a, 8 formed concentrically at a predetermined interval from the inner diameter side to the outer diameter side.
a,... are provided.
尚、ダストカバー本体７の他方の口縁部７２
は、ボールスタツド４のボール４２が球面接触す
るソケツト９が設けられたサスペンシヨンロアア
ーム１０の取付座部１１に嵌着されている。 Note that the other mouth edge 72 of the dust cover main body 7
is fitted into the mounting seat 11 of the suspension lower arm 10, which is provided with a socket 9 with which the ball 42 of the ball stud 4 makes spherical contact.
上記構成のダストカバーにあつては、シールリ
ツプ７１ａがフエルール５に接触してシール面を
形成する。該フエルール５は薄肉であるため、プ
レス成形等によつて容易に加工でき、シール面形
成部の仕上げ加工も格別施す必要はない。従つ
て、シール面のシール性を確保し易いし、製造コ
ストも抑制できる。また、フエルール５の上端フ
ランジ５２とナツクルアーム２との間はナツクル
アーム２に密封接触するシール部材８によつてシ
ールされる。本実施例ではシール部材８に３重に
環状突起８ａ，…を設けているので、環状突起８
ａ部分のシール面圧が大きくなり、シール性能が
高い。このシール部材８はボールスタツド４に固
定したフエルール５に設けてあるため、ダストカ
バー本体７が回転したり撓んだりした場合でも動
かず、いわゆるガスケツトとして機能する。 In the dust cover configured as described above, the seal lip 71a contacts the ferrule 5 to form a sealing surface. Since the ferrule 5 is thin, it can be easily processed by press molding or the like, and there is no need for special finishing of the sealing surface forming portion. Therefore, it is easy to ensure the sealing performance of the sealing surface, and manufacturing costs can also be suppressed. Further, the space between the upper end flange 52 of the ferrule 5 and the knuckle arm 2 is sealed by a sealing member 8 that is in sealing contact with the knuckle arm 2. In this embodiment, the sealing member 8 is provided with three annular projections 8a, . . .
The sealing surface pressure at part a is increased, resulting in high sealing performance. Since this seal member 8 is provided on the ferrule 5 fixed to the ball stud 4, it does not move even when the dust cover main body 7 rotates or bends, and functions as a so-called gasket.
従つて、ダストカバー本体７の静止時は勿論、
ダストカバー本体７の回転時、撓み時においても
シール部材８が摩耗、変形せずナツクルアーム２
に対するシール面の接面圧力が一定に維持され、
長期に亘つて優れたシール性を確保できる。した
がつてフエルール５とナツクルアーム２およびボ
ールスタツド４の間からダストカバー本体７内部
（ボールジヨイント部）への水、ダスト等の浸入
を長期にわたつて防止することができる。 Therefore, of course when the dust cover body 7 is stationary,
Even when the dust cover main body 7 rotates or bends, the sealing member 8 does not wear out or deform, and the knuckle arm 2
The contact pressure of the sealing surface against
Excellent sealing performance can be ensured over a long period of time. Therefore, it is possible to prevent water, dust, etc. from entering the inside of the dust cover main body 7 (ball joint portion) from between the ferrule 5, the knuckle arm 2, and the ball stud 4 for a long period of time.
尚、上記実施例では、シール部材８をフエルー
ル５の上端フランジ５２に設けたが、筒状部５１
に設けてもよく、また上端フランジ５２および筒
状部５１の両方に設けてもよい。また本実施例で
は自動車の独立懸架装置のボールジヨイントに取
付ける例を示したが、その他かじ取り装置のジヨ
イント部等の滑面を保護する各種ジヨイント部に
適用し得るものである。 In the above embodiment, the seal member 8 is provided on the upper end flange 52 of the ferrule 5, but the cylindrical portion 51
Alternatively, it may be provided on both the upper end flange 52 and the cylindrical portion 51. Further, in this embodiment, an example is shown in which the present invention is attached to a ball joint of an independent suspension system of an automobile, but it can also be applied to various joint parts for protecting a smooth surface such as a joint part of a steering device.
（考案の効果）
本考案は以上の構成および作用から成るもの
で、シールリツプがフエルールに接触してシール
面を形成する。該フエルールは薄肉であるため、
プレス成形等によつて容易に加工でき、シール面
形成部の仕上げ加工も格別施す必要はない。従つ
て、シール面のシール性を確保し易いし、製造コ
ストも抑制できる。(Effects of the Invention) The present invention has the above-described structure and operation, and the seal lip contacts the ferrule to form a sealing surface. Since the ferrule is thin,
It can be easily processed by press molding or the like, and there is no need for special finishing of the sealing surface forming portion. Therefore, it is easy to ensure the sealing performance of the sealing surface, and manufacturing costs can also be suppressed.
また、ダストカバー本体の静止時は勿論、ダス
トカバー本体の回転時、撓み時においてもシール
部材は摩耗、変形しない。従つて、被取付部材に
対するシール面の接面圧力が一定に維持され、長
期に亘つて優れたシール性を確保できるという効
果が得られる。 Furthermore, the sealing member does not wear or deform even when the dust cover body is at rest, as well as when the dust cover body rotates or bends. Therefore, the contact pressure of the sealing surface with respect to the attached member is maintained constant, resulting in the effect that excellent sealing performance can be ensured over a long period of time.
第１図は本考案の一実施例に係るダストブーツ
の要部縦断面図、第２図は第１図のダストブーツ
をボールジヨイントに装着した状態を示す縦断面
図、第３図は従来のダストブーツをボールジヨイ
ントに装着した状態を示す縦断面図である。
符号の説明、１……ダストカバー、２……ナツ
クルアーム（被取付部材）、４……ボールスタツ
ド（被取付部材）、５……フエルール、５１……
筒状部、５２……上端フランジ、７……ダストカ
バー本体、７１……口縁部、８……シール部材、
８ａ……環状突起。
Fig. 1 is a vertical cross-sectional view of essential parts of a dust boot according to an embodiment of the present invention, Fig. 2 is a longitudinal cross-sectional view showing the dust boot of Fig. 1 attached to a ball joint, and Fig. 3 is a conventional FIG. 3 is a longitudinal cross-sectional view showing a state in which the dust boot is attached to the ball joint. Explanation of symbols, 1...Dust cover, 2...Knuckle arm (attached member), 4...Ball stud (attached member), 5...Ferrule, 51...
Cylindrical part, 52... Upper end flange, 7... Dust cover main body, 71... Mouth edge, 8... Seal member,
8a... Annular process.
Claims (1)
ルと、該フエルールに相対回転可能に取り付けた
円筒状のダストカバー本体とを有し、該ダストカ
バー本体に、前記フエルールに接触するシールリ
ツプを設け、上記フエルールの被取付部材との接
触部にゴム状弾性体製の環状のシール部材を設け
たことを特徴とするダストカバー。 It has an annular thin-walled ferrule fixed to a member to be attached, and a cylindrical dust cover main body attached to the ferrule so as to be relatively rotatable, and the dust cover main body is provided with a seal lip that contacts the ferrule, and the above-mentioned A dust cover characterized in that an annular sealing member made of a rubber-like elastic body is provided at a contact portion of a ferrule with a member to be attached.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986196822U JPH0356693Y2 (en) | 1986-12-23 | 1986-12-23 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986196822U JPH0356693Y2 (en) | 1986-12-23 | 1986-12-23 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63175359U JPS63175359U (en) | 1988-11-14 |
| JPH0356693Y2 true JPH0356693Y2 (en) | 1991-12-20 |
Family
ID=31155980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986196822U Expired JPH0356693Y2 (en) | 1986-12-23 | 1986-12-23 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0356693Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009270633A (en) * | 2008-05-08 | 2009-11-19 | Rhythm Corp | Dust cover for ball joint and method for assembling it |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5376237B2 (en) * | 2009-09-15 | 2013-12-25 | Ｎｏｋ株式会社 | Dust cover for ball joint |
| JP5971617B2 (en) * | 2012-10-25 | 2016-08-17 | Nok株式会社 | Dust cover for ball joint |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5522520B2 (en) * | 1971-03-31 | 1980-06-17 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5522520U (en) * | 1978-07-29 | 1980-02-13 |
-
1986
- 1986-12-23 JP JP1986196822U patent/JPH0356693Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5522520B2 (en) * | 1971-03-31 | 1980-06-17 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009270633A (en) * | 2008-05-08 | 2009-11-19 | Rhythm Corp | Dust cover for ball joint and method for assembling it |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63175359U (en) | 1988-11-14 |
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