JPH0680062U - Sealing device - Google Patents

Sealing device

Info

Publication number
JPH0680062U
JPH0680062U JP025607U JP2560793U JPH0680062U JP H0680062 U JPH0680062 U JP H0680062U JP 025607 U JP025607 U JP 025607U JP 2560793 U JP2560793 U JP 2560793U JP H0680062 U JPH0680062 U JP H0680062U
Authority
JP
Japan
Prior art keywords
sleeve
foreign matter
dust lip
sealing device
seal 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.)
Granted
Application number
JP025607U
Other languages
Japanese (ja)
Other versions
JP2592487Y2 (en
Inventor
直人 小林
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.)
Nok Corp
Original Assignee
Nok Corp
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 Nok Corp filed Critical Nok Corp
Priority to JP1993025607U priority Critical patent/JP2592487Y2/en
Publication of JPH0680062U publication Critical patent/JPH0680062U/en
Application granted granted Critical
Publication of JP2592487Y2 publication Critical patent/JP2592487Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Sealing With Elastic Sealing Lips (AREA)

Abstract

(57)【要約】 【目的】 ダストリップとスリーブとの接触面から異物
が浸入しても、その浸入した異物を排出できるようにす
る。 【構成】 相対回転自在に配置された二部材1,2の間
を異物側Dと取扱流体側Eとに区分すべく、一方の部材
2に固定されるスリーブ4と他方の部材1に固定される
環状のシール本体5とを組合せて成り、シール本体5に
はスリーブ4の異物側Dの面に接触するダストリップ1
7が設けられた密封装置において、ダストリップ17と
スリーブ4とで画成される領域の取扱流体側でのシール
本体5上に、羽根部15を設けたことを特徴とする。
(57) [Summary] [Purpose] Even if foreign matter enters from the contact surface between the dust lip and the sleeve, the foreign matter that has entered can be discharged. A sleeve 4 fixed to one member 2 and a member 4 fixed to the other member 1 so as to divide a space between two members 1 and 2 arranged so as to be rotatable relative to each other into a foreign substance side D and a treated fluid side E. And a ring-shaped seal body 5 which is in contact with the surface of the sleeve 4 on the foreign object side D.
In the sealing device provided with 7, the vane portion 15 is provided on the seal body 5 on the handled fluid side in the region defined by the dust lip 17 and the sleeve 4.

Description

【考案の詳細な説明】[Detailed description of the device]

【0001】[0001]

【産業上の利用分野】[Industrial applications]

この考案は、自動車のハブベアリング等、相対回転する二部材間を異物側と取 扱流体側とに区分するのに用いられる密封装置に関する。 The present invention relates to a sealing device that is used to separate two relatively rotating members such as a hub bearing of an automobile into a foreign matter side and a handling fluid side.

【0002】[0002]

【従来の技術】[Prior art]

従来の密封装置としては、例えば実開昭63−57861号に示すようなもの が知られている。 As a conventional sealing device, for example, the one shown in Japanese Utility Model Laid-Open No. 63-57861 is known.

【0003】 即ち、図2に示すように、相対運動自在に配置された二部材101,201の 間を異物側Dと取扱流体側Eとに区分すべく、一方の部材102に固定されるス リーブ104と他方の部材101に固定される環状のシール本体105とを組合 せて成り、該シール本体105にはスリーブ104の異物側の面に接触するダス トリップ117が設けられている。That is, as shown in FIG. 2, in order to divide the space between the two members 101 and 201, which are arranged so as to be relatively movable, into a foreign substance side D and a treated fluid side E, a screw fixed to one member 102. The leave 104 and an annular seal body 105 fixed to the other member 101 are combined with each other, and the seal body 105 is provided with a dust strip 117 that contacts the surface of the sleeve 104 on the foreign matter side.

【0004】[0004]

【考案が解決しようとする課題】[Problems to be solved by the device]

しかしながら上記した従来の密封装置にあっては、ダストリップ117とスリ ーブ104との接触面から泥水等の異物が浸入してしまうことがあった。 However, in the above-described conventional sealing device, foreign matter such as muddy water may enter from the contact surface between the dust lip 117 and the sleeve 104.

【0005】 本考案は上記課題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 、ダストリップとスリーブとの接触面から泥水等の異物が浸入しても、その浸入 した異物を排出しうる手段を備えた密封装置を提供することにある。The present invention has been made in order to solve the above problems, and an object thereof is to discharge foreign matter such as muddy water from the contact surface between the dust lip and the sleeve. It is an object of the present invention to provide a sealing device provided with a possible means.

【0006】[0006]

【課題を解決するための手段】[Means for Solving the Problems]

上記目的を達成するために本考案にあっては、相対回転自在に配置された二部 材の間を異物側と取扱流体側とに区分すべく、一方の部材に固定されるスリーブ と他方の部材に固定される環状のシール本体とを組合せて成り、該シール本体に は前記スリーブの異物側の面に接触するダストリップが設けられた密封装置にお いて、前記ダストリップと前記スリーブとで画成される領域の取扱流体側でのシ ール本体上に、羽根部を設けたことを特徴とする。 In order to achieve the above-mentioned object, in the present invention, a sleeve fixed to one member and a In a sealing device comprising a ring-shaped seal body fixed to a member, the seal body having a dust lip contacting the surface of the sleeve on the foreign matter side, the dust lip and the sleeve are combined. The blade is provided on the seal body on the side of the treated fluid in the defined region.

【0007】[0007]

【作用】[Action]

上記構成の本考案にあっては、ダストリップとスリーブとで画成される領域の 取扱流体側でのシール本体上に、羽根部を設けたことにより、ダストリップとス リーブとの接触面から泥水等の異物が浸入しても、その浸入した異物は、シール 本体の回転に伴う羽根部での遠心力の作用により、再びダストリップとスリーブ との接触面から排出される。 In the present invention having the above-mentioned configuration, the vane portion is provided on the seal body on the fluid handling side in the area defined by the dust lip and the sleeve, so that the contact surface between the dust lip and the sleeve is reduced. Even if foreign matter such as muddy water enters, the invaded foreign matter is again discharged from the contact surface between the dust lip and the sleeve due to the action of the centrifugal force at the vanes accompanying the rotation of the seal body.

【0008】[0008]

【実施例】【Example】

以下に本考案を図示の実施例に基づいて説明する。 The present invention will be described below based on the illustrated embodiment.

【0009】 図1において、1はハウジング(他方の部材)、2はハウジング1内に挿入し た軸(一方の部材)で、両部材は相対回転自在となっている。3はオイルシール で、ハウジング1と軸2との間を、ダスト,泥水等の異物側(外部)Dと油,グ リース等の取扱流体側(内部)Eとに区分している。このオイルシール3は軸2 に固定したスリーブ4と、ハウジング1に固定した環状のシール本体5とを組合 せてなる。In FIG. 1, 1 is a housing (the other member), 2 is a shaft (one member) inserted in the housing 1, and both members are relatively rotatable. An oil seal 3 divides the space between the housing 1 and the shaft 2 into a foreign matter side (external) D such as dust and muddy water and a handled fluid side (internal) E such as oil and grease. The oil seal 3 comprises a sleeve 4 fixed to the shaft 2 and an annular seal body 5 fixed to the housing 1.

【0010】 前記スリーブ4は軸2に嵌合した第一円筒部6と、第一円筒部6から異物側D に面して外径方向に伸びた第一フランジ(フランジ)7と、第一フランジ7の外 周端からシール本体5の基部(後述)側、即ち、取扱流体側Eへ軸方向に伸びた 第二円筒部8とから構成されている。The sleeve 4 has a first cylindrical portion 6 fitted to the shaft 2, a first flange (flange) 7 extending from the first cylindrical portion 6 toward the foreign matter side D 1 in the outer radial direction, It is composed of a second cylindrical portion 8 that extends in the axial direction from the outer peripheral end of the flange 7 to the base portion (described later) of the seal body 5, that is, the treated fluid side E.

【0011】 一方、シール本体5は金属製の補強環10とゴム状弾性体製のシール部材11 とを一体化したものであって、ハウジング1に嵌合する円筒状の嵌合部12と、 嵌合部12から取扱流体側Eに面して内径方向に伸びた環状の基部13とを備え ている。On the other hand, the seal main body 5 is formed by integrating a metal reinforcing ring 10 and a rubber-like elastic seal member 11, and has a cylindrical fitting portion 12 that fits into the housing 1. An annular base portion 13 that extends from the fitting portion 12 toward the handled fluid side E and that extends in the inner diameter direction is provided.

【0012】 また、基部13、即ち、シール部材11の内周側には、スリーブ4の第一円筒 部6に接触するグリースリップ14と第一フランジ7の端面に接触するサイドリ ップ16が設けられている。更に、シール本体5の嵌合部12、即ち、シール部 材11の外周側には、スリーブの異物側の面としての第二円筒部8の外周面8a に接触するダストリップ17が設けられている。A grease lip 14 that contacts the first cylindrical portion 6 of the sleeve 4 and a side lip 16 that contacts the end surface of the first flange 7 are provided on the base portion 13, that is, on the inner peripheral side of the seal member 11. Has been. Further, on the fitting portion 12 of the seal body 5, that is, on the outer peripheral side of the seal member 11, there is provided a dust lip 17 which comes into contact with the outer peripheral surface 8a of the second cylindrical portion 8 as the surface of the sleeve on the foreign material side. There is.

【0013】 そして、ダストリップ17とスリーブ4とで画成される領域の取扱流体側での シール本体5上に、羽根部15が設けられている。The vane portion 15 is provided on the seal body 5 on the handled fluid side in the region defined by the dust lip 17 and the sleeve 4.

【0014】 羽根部15は、径方向に延びると共に周方向に複数配設された羽根15aと、 羽根15aの内径側に形成された段部15bとより成っている。The blade portion 15 includes a plurality of blades 15a extending in the radial direction and arranged in the circumferential direction, and a step portion 15b formed on the inner diameter side of the blade 15a.

【0015】 なお、ダストリップ17と第二円筒部8の外周面8aとの間はラビリンス構造 18となっている。A labyrinth structure 18 is provided between the dust lip 17 and the outer peripheral surface 8 a of the second cylindrical portion 8.

【0016】 なお、上記グリースリップ14は取扱流体側Eに向けて傾斜し、ダストリップ 17は異物側Dに向けて傾斜し、サイドリップ16は外径方向に傾斜している。The grease lip 14 is inclined toward the handled fluid side E, the dust lip 17 is inclined toward the foreign matter side D, and the side lip 16 is inclined toward the outer diameter direction.

【0017】 次に、上記実施例の作用を説明する。Next, the operation of the above embodiment will be described.

【0018】 ハウジング1の内部の取扱流体はシールリップ14により密封される一方、サ イドリップ16,ダストリップ17,ラビリンス構造18は異物がハウジング1 の内部に浸入することを防止している。ここで、万一、異物側Dの異物がダスト リップ17の密封面を通過したとしても、その浸入した異物は、まず羽根部15 の段部15bで浸入が阻止され、段部15bにて浸入が阻止された異物は、シー ル本体5の回転に伴う羽根部15の羽根15aの遠心力の作用により、再びダス トリップ17とスリーブ4との接触面から排出される。The handled fluid inside the housing 1 is sealed by the seal lip 14, while the side lip 16, the dust lip 17, and the labyrinth structure 18 prevent foreign matter from entering the inside of the housing 1. Here, even if the foreign matter on the foreign matter side D passes through the sealing surface of the dust lip 17, the infiltrated foreign matter is first blocked at the stepped portion 15b of the blade portion 15 and at the stepped portion 15b. The foreign matter that has been blocked is again discharged from the contact surface between the dust strip 17 and the sleeve 4 due to the action of the centrifugal force of the blade 15a of the blade portion 15 accompanying the rotation of the seal body 5.

【0019】 従って、オイルシール3のグリースリップ14,サイドリップ16の耐久性が 向上して長期に亘って密封性を確保できる。Therefore, the durability of the grease lip 14 and the side lip 16 of the oil seal 3 is improved, and the hermeticity can be secured for a long time.

【0020】[0020]

【考案の効果】[Effect of device]

以上説明したように本考案にあっては、ダストリップとスリーブとで画成され る領域の取扱流体側でのシール本体上に、羽根部を設けたことにより、ダストリ ップとスリーブとの接触面から泥水等の異物が浸入しても、その浸入した異物は 、シール本体の回転に伴う羽根部での遠心力の作用により、再びダストリップと スリーブとの接触面から排出される。 As described above, according to the present invention, the contact between the dust lip and the sleeve is achieved by providing the blade portion on the seal body on the handled fluid side in the area defined by the dust lip and the sleeve. Even if foreign matter such as muddy water intrudes from the surface, the infiltrated foreign matter is again discharged from the contact surface between the dust lip and the sleeve due to the action of the centrifugal force at the blade portion accompanying the rotation of the seal body.

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

【図1】本考案の一実施例に係る密封装置の正面半断面
図である。
FIG. 1 is a front half sectional view of a sealing device according to an embodiment of the present invention.

【図2】従来の密封装置の正面半断面図である。FIG. 2 is a front half sectional view of a conventional sealing device.

【符号の説明】[Explanation of symbols]

1 ハウジング(他方の部材) 2 軸(一方の部材) 4 スリーブ 5 シール本体 15 羽根部 17 ダストリップ 1 Housing (other member) 2 Shaft (one member) 4 Sleeve 5 Seal main body 15 Blade part 17 Dustrip

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 【請求項1】 相対回転自在に配置された二部材の間を
異物側と取扱流体側とに区分すべく、一方の部材に固定
されるスリーブと他方の部材に固定される環状のシール
本体とを組合せて成り、該シール本体には前記スリーブ
の異物側の面に接触するダストリップが設けられた密封
装置において、 前記ダストリップと前記スリーブとで画成される領域の
取扱流体側でのシール本体上に、羽根部を設けたことを
特徴とする密封装置。
1. A sleeve fixed to one member and an annular seal main body fixed to the other member so as to divide a space between two members arranged to be rotatable relative to each other into a foreign matter side and a handled fluid side. A sealing device in which a dust lip that contacts the surface of the sleeve on the foreign matter side is provided in the seal body, wherein a seal is formed on the handling fluid side in a region defined by the dust lip and the sleeve. A sealing device characterized in that a blade portion is provided on a main body.
JP1993025607U 1993-04-20 1993-04-20 Sealing device Expired - Lifetime JP2592487Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1993025607U JP2592487Y2 (en) 1993-04-20 1993-04-20 Sealing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1993025607U JP2592487Y2 (en) 1993-04-20 1993-04-20 Sealing device

Publications (2)

Publication Number Publication Date
JPH0680062U true JPH0680062U (en) 1994-11-08
JP2592487Y2 JP2592487Y2 (en) 1999-03-24

Family

ID=12170589

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1993025607U Expired - Lifetime JP2592487Y2 (en) 1993-04-20 1993-04-20 Sealing device

Country Status (1)

Country Link
JP (1) JP2592487Y2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006068047A1 (en) * 2004-12-20 2006-06-29 Eagle Industry Co., Ltd. Shaft sealing device
JP2010190327A (en) * 2009-02-18 2010-09-02 Jtekt Corp Sealing device and rolling bearing device using the same
JP2021028506A (en) * 2019-08-09 2021-02-25 Nok株式会社 Sealing device and sealing structure

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006125424A (en) * 2004-10-26 2006-05-18 Nok Corp Sealing device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006068047A1 (en) * 2004-12-20 2006-06-29 Eagle Industry Co., Ltd. Shaft sealing device
JP2010190327A (en) * 2009-02-18 2010-09-02 Jtekt Corp Sealing device and rolling bearing device using the same
JP2021028506A (en) * 2019-08-09 2021-02-25 Nok株式会社 Sealing device and sealing structure

Also Published As

Publication number Publication date
JP2592487Y2 (en) 1999-03-24

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