JP2005240933A - Oil seal - Google Patents

Oil seal Download PDF

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Publication number
JP2005240933A
JP2005240933A JP2004053040A JP2004053040A JP2005240933A JP 2005240933 A JP2005240933 A JP 2005240933A JP 2004053040 A JP2004053040 A JP 2004053040A JP 2004053040 A JP2004053040 A JP 2004053040A JP 2005240933 A JP2005240933 A JP 2005240933A
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Prior art keywords
oil seal
friction member
friction
metal ring
seal
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JP2004053040A
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Japanese (ja)
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JP4484032B2 (en
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Hidenori Arai
秀徳 新井
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Nok Corp
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Nok Corp
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Publication of JP4484032B2 publication Critical patent/JP4484032B2/en
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Abstract

<P>PROBLEM TO BE SOLVED: To provide an oil seal, for installing a friction member with friction function and without complicated installation work even if the oil seal is installed in a narrow space. <P>SOLUTION: The oil seal part 10 installed in an annular clearance between two members assembled to be movable relatively to each other, has: a fixed sealing part 13 brought into close-contact between one member disposed concentrically with the other member and a metal ring 11; and a seal lip part 16 formed integrally with the fixed sealing part 13 to be slide with the other member. A friction member 20 is attached to the oil seal part 10 bonded to a reinforcement ring 21 which is connected with the metal ring 11, so that the friction member 20 is slid with the other member for generating friction. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

本発明は、オイルシールに係り、更に詳しくは、車両用懸架装置に用いられ乗り心地を改善するためにフリクション機能を備えたオイルシールに関する。   The present invention relates to an oil seal, and more particularly to an oil seal that is used in a vehicle suspension device and has a friction function to improve riding comfort.

ピストンロッドにおける高周波で微振幅の運動は車両の乗り心地等に影響を与えるので低減することを求められており、その対策として特開２００１ー３３００７４では、オイルシールとロッドガイドの間に摩擦部材を設けてフリクションを発生させピストンロッドの振幅を抑制することが提案されている。   The high-frequency and small-amplitude motion in the piston rod affects the ride quality of the vehicle and is therefore required to be reduced. As a countermeasure, Japanese Patent Laid-Open No. 2001-330074 employs a friction member between the oil seal and the rod guide. It has been proposed to reduce the amplitude of the piston rod by providing friction.

上記発明は、ゴム状弾性体よりなり金属環の内周側に加硫接着され軸に摺動するシールリップ部を有するオイルシールのシリンダー側に摩擦部材を設け、前記オイルシールの金属環の外周側部分とピストンロッドガイドの端部とで摩擦部材を挟持している。摩擦部材の内周側が軸と摺動しフリクションを発生するようになっていて、ピストンロッドによる高周波で微振幅の運動はもとより低周波で大振幅の運動も抑制している。   In the above invention, a friction member is provided on the cylinder side of the oil seal having a seal lip portion which is made of a rubber-like elastic body and is vulcanized and bonded to the inner peripheral side of the metal ring and slides on the shaft. The friction member is sandwiched between the side portion and the end of the piston rod guide. The friction member is slid on the inner peripheral side of the friction member to generate friction, and not only high-frequency, small-amplitude motion but also low-frequency, large-amplitude motion is suppressed by the piston rod.

しかし、上記構成においては、オイルシールとは異なる場所に摩擦部材を設置しているので、摩擦部材を設置するためのスペースの確保が必要になるとともに、設置するに際してオイルシールと摩擦部材とを別々に設置する必要があるため設置作業が煩雑であるとの問題点を有していた。   However, in the above configuration, since the friction member is installed in a place different from the oil seal, it is necessary to secure a space for installing the friction member, and the oil seal and the friction member are separately installed when installing. Therefore, there is a problem that the installation work is complicated.

特開２００１ー３３００７４公報JP 2001-330074 A

本発明は以上の点に鑑みて、狭いスペースにオイルシールを設置する場合であっても、フリクション機能を有する摩擦部材を設置することができ、しかも設置作業が煩雑にならないオイルシールを提供することを目的とする。   In view of the above, the present invention provides an oil seal in which a friction member having a friction function can be installed even when an oil seal is installed in a narrow space, and the installation work is not complicated. With the goal.

上記目的を達成するため、本発明の請求項１にかかるオイルシールは、互いに相対可動自在に組み付けられた２部材間の環状の隙間に設置するもので、一の部材と同心に配設された他の部材と金属環の間に密接する固定密封部と一体成形され該一の部材に摺動するシールリップ部を有するオイルシール部に、前記金属環と結合した補強環に接着しフリクションを発生させるために前記一の部材に摺動するように設けられている摩擦部材が付設されていることを特徴とするものである。   In order to achieve the above object, an oil seal according to claim 1 of the present invention is installed in an annular gap between two members assembled so as to be movable relative to each other, and is disposed concentrically with one member. Adhering to the reinforcing ring connected to the metal ring, the friction is generated in the oil seal part that has a seal lip part that is integrally formed with the fixed sealing part that is in close contact between the other member and the metal ring. For this purpose, a friction member provided to slide on the one member is attached.

本発明は、以下の効果を奏する。   The present invention has the following effects.

すなわち、上記構成を備えた本発明のオイルシールにおいては、フリクションを発生させるための摩擦部材がオイルシール部に付設しているので、摩擦部材を設置するためのスペースの確保が不要となり、狭いスペースにおいても摩擦部材を設置することができる。更に、摩擦部材がオイルシール部と一体となっているので、設置作業においてオイルシール部と摩擦部材とを別個に設置する必要がなく作業の簡略化も図ることができる。   That is, in the oil seal of the present invention having the above-described configuration, since a friction member for generating friction is attached to the oil seal portion, it is not necessary to secure a space for installing the friction member, and a narrow space The friction member can also be installed at. Furthermore, since the friction member is integrated with the oil seal portion, it is not necessary to separately install the oil seal portion and the friction member in the installation operation, and the operation can be simplified.

以下に図面を参照して、この発明の好適な実施の形態を例示して説明する。ただし、この発明の範囲は、特に限定的記載がないかぎりは、この実施の形態に記載されている内容に限定する趣旨のものではない。   Preferred embodiments of the present invention will be described below with reference to the drawings. However, the scope of the present invention is not intended to be limited to the contents described in this embodiment unless otherwise specified.

図１は、本発明の実施例に係るオイルシール１の要部断面を示しており、オイルシール部１０と付設した摩擦部材２０とから構成されている。   FIG. 1 shows a cross section of a main part of an oil seal 1 according to an embodiment of the present invention, which is composed of an oil seal portion 10 and an attached friction member 20.

オイルシール部１０は、断面Ｌ字状で後述する固定密封部を介してハウジングと密接している円筒部１１ａと円筒部１１ａの一端から周方向に延びるフランジ部１１ｂから構成される金属環１１と、金属環１１を被覆するように加硫接着されているゴム状弾性体からなるシール本体部１２とから構成されている。シール本体部１２は、金属環１１の円筒部１１ａの外周側に位置しハウジングと密接する固定密封部１３と、固定密封部１３と一体成形され金属環１１の内周側に位置し軸に摺接する主リップ１４及び主リップ１４よりシリンダー側に位置するダストリップ１５からなるシールリップ部１６とで構成されていて、主リップ１４のリップエッジの反対側である外周側にはガータスプリング１８を装着するための凹部１７が設けられている。   The oil seal portion 10 has an L-shaped cross section and a metal ring 11 composed of a cylindrical portion 11a that is in close contact with the housing via a fixed sealing portion, which will be described later, and a flange portion 11b that extends in the circumferential direction from one end of the cylindrical portion 11a. The seal body 12 is made of a rubber-like elastic body that is vulcanized and bonded to cover the metal ring 11. The seal main body 12 is located on the outer peripheral side of the cylindrical portion 11a of the metal ring 11 and is fixedly sealed with the fixed sealing portion 13 which is in close contact with the housing. It is composed of a main lip 14 in contact and a seal lip portion 16 comprising a dust lip 15 located on the cylinder side of the main lip 14, and a garter spring 18 is mounted on the outer peripheral side opposite to the lip edge of the main lip 14. A recess 17 is provided for this purpose.

オイルシール部１０の金属環１１の円筒部１１ａにゴム状弾性体からなる結合部２２を介して補強環２１の円筒部２１ａが結合しており、補強環２１のフランジ部２１ｂの内周側先端には軸に摺動するように結合部２２と一体で成形された摩擦部材２０が先端部をシリンダー側に向けて設けられている。また、補強環２１のフランジ部２１ｂには、主リップ１４及びダストリップ１５が軸と摺動するときの潤滑性を確保するための貫通した給油路２３が設けられている。   The cylindrical portion 21a of the reinforcing ring 21 is coupled to the cylindrical portion 11a of the metal ring 11 of the oil seal portion 10 via a coupling portion 22 made of a rubber-like elastic body, and the inner peripheral end of the flange portion 21b of the reinforcing ring 21 A friction member 20 formed integrally with the coupling portion 22 so as to slide on the shaft is provided with the tip portion facing the cylinder side. The flange portion 21b of the reinforcing ring 21 is provided with a through oil supply passage 23 for ensuring lubricity when the main lip 14 and the dust lip 15 slide with the shaft.

したがって、上記オイルシール１は、摩擦部材２０がオイルシール部１０に付設されて一体となっているので、相対可動自在に組み付けられたハウジングと軸との間に摩擦部材２０を装着するに際して摩擦部材２０を装着するためのスペースを確保しなくとも、オイルシール部材１０を装着できるだけのスペースを確保すれば摩擦部材２０を装着することができる。しかも、摩擦部材２０がオイルシール部材１０と一体となっているので摩擦部材２０をオイルシール部１０とは別に装着する必要がなく作業の簡略化を図ることができる。   Therefore, since the oil seal 1 is integrated with the friction member 20 attached to the oil seal portion 10, the friction member 20 is attached when the friction member 20 is mounted between the shaft and the housing assembled so as to be relatively movable. Even if the space for mounting 20 is not secured, the friction member 20 can be mounted if the space sufficient to mount the oil seal member 10 is secured. In addition, since the friction member 20 is integrated with the oil seal member 10, it is not necessary to attach the friction member 20 separately from the oil seal portion 10, and the operation can be simplified.

更に、摩擦部材２０がシールリップ部１６と一体に成形されているのではなく別個に成形されているので先端の向きをシリンダー側に向けることができ、軸挿入時に摩擦部材２０の先端が軸によって傷付けられるのを防止することができる。しかも摩擦部材２０の先端が補強環２１のフランジ部２１ｂ先端についているので軸に押圧するための付勢力をつけることができ、摩擦部材２０を押圧するための弾性部材を別個に設ける必要がなく部品点数の増加を防止することができる。   Further, since the friction member 20 is not formed integrally with the seal lip portion 16, but is formed separately, the tip direction can be directed to the cylinder side, and the tip of the friction member 20 is inserted by the shaft when the shaft is inserted. It can be prevented from being damaged. Moreover, since the tip of the friction member 20 is attached to the tip of the flange portion 21b of the reinforcing ring 21, it is possible to apply a biasing force for pressing against the shaft, and there is no need to separately provide an elastic member for pressing the friction member 20. An increase in the score can be prevented.

また、補強環２１のフランジ部２１ｂ先端に摩擦部材２０が設けられているのでシールリップ部１６と軸との摺動をよくするための給油路２３を補強環２１のフランジ部２１ｂ等に設けることができ、摩擦部材２０の内周全面を軸に対して摺動させることができる。   Further, since the friction member 20 is provided at the front end of the flange portion 21b of the reinforcing ring 21, an oil supply passage 23 for improving the sliding between the seal lip portion 16 and the shaft is provided in the flange portion 21b of the reinforcing ring 21 and the like. And the entire inner circumference of the friction member 20 can be slid with respect to the shaft.

また、シールリップ部１６と摩擦部材２０が別個に設けられているので、使用目的に応じてシールリップ部１６の材質と摩擦部材２０の材質とを別々に選択することができる。   Further, since the seal lip portion 16 and the friction member 20 are provided separately, the material of the seal lip portion 16 and the material of the friction member 20 can be selected separately according to the purpose of use.

なお、ハウジングと軸との間隙が狭い場合には、図２で示す実施例２のように補強環の形状を円筒部２１ａがないフランジ部２１ｂだけの形状にしても良く、補強環２１の形状は設置する場所のスペースに応じて適宜変更し、図１の実施例の形状に限定されるものではない。   When the gap between the housing and the shaft is narrow, the shape of the reinforcing ring may be the shape of the flange portion 21b without the cylindrical portion 21a as in the second embodiment shown in FIG. Is appropriately changed according to the space of the installation place, and is not limited to the shape of the embodiment of FIG.

また、給油路２３が形成される位置は、補強環２１のフランジ部２１ｂに限定されるものではなく、図３で示す実施例３のように金属環１１の円筒部１１ａと結合部２２との結合面に形成してもよい。   Moreover, the position where the oil supply passage 23 is formed is not limited to the flange portion 21b of the reinforcing ring 21, but the cylindrical portion 11a and the coupling portion 22 of the metal ring 11 as in the third embodiment shown in FIG. You may form in a joint surface.

また、摩擦部材２０には、他の機能を付加しても良く例えば図４で示す実施例４のように補強環２１のフランジ部２１ｂの反シリンダー側にチェックリップを設けても良い。   Further, the friction member 20 may be provided with other functions, and for example, a check lip may be provided on the opposite cylinder side of the flange portion 21b of the reinforcing ring 21 as in the fourth embodiment shown in FIG.

本発明に係るオイルシールの一部断面図Partial sectional view of an oil seal according to the present invention 本発明に係る実施例２のオイルシールの一部断面図Partial sectional drawing of the oil seal of Example 2 which concerns on this invention 本発明に係る実施例３のオイルシールの一部断面図Partial sectional drawing of the oil seal of Example 3 which concerns on this invention 本発明に係る実施例４のオイルシールの一部断面図Partial sectional drawing of the oil seal of Example 4 which concerns on this invention

符号の説明Explanation of symbols

１ オイルシール
１０ オイルシール部
１１ 金属環
１１ａ，２１ａ 円筒部
１１ｂ，２１ｂ フランジ部
１２ シール本体部
１３ 固定密封部
１４ 主リップ
１５ ダストリップ
１６ シールリップ部
１７ 凹部
１８ ガータスプリング
２０ 摩擦部材
２１ 補強環
２２ 結合部
２３ 給油路
２４ チェックリップ
Ａ シリンダー側 DESCRIPTION OF SYMBOLS 1 Oil seal 10 Oil seal part 11 Metal ring 11a, 21a Cylindrical part 11b, 21b Flange part 12 Seal main body part 13 Fixed sealing part 14 Main lip 15 Dustrip 16 Seal lip part 17 Recessed part 18 Garter spring 20 Friction member 21 Reinforcement ring 22 Joint 23 Oil supply path 24 Check lip A Cylinder side

Claims (1)

互いに相対可動自在に組み付けられた２部材間の環状の隙間に設置するもので、一の部材と同心に配設された他の部材と金属環の間に密接する固定密封部と一体成形され該一の部材に摺動するシールリップ部を有するオイルシール部に、前記金属環と結合した補強環に接着しフリクションを発生させるために前記一の部材に摺動するように設けられている摩擦部材が付設されていることを特徴とするオイルシール。   It is installed in an annular gap between two members that are assembled so as to be movable relative to each other, and is integrally formed with a fixed sealing portion that is in close contact with a metal ring and another member arranged concentrically with one member. A friction member provided on an oil seal portion having a seal lip portion that slides on one member, and is slid on the one member in order to adhere to a reinforcing ring coupled to the metal ring and generate friction. An oil seal characterized by being attached.
JP2004053040A 2004-02-27 2004-02-27 Oil seal Expired - Lifetime JP4484032B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2004053040A JP4484032B2 (en) 2004-02-27 2004-02-27 Oil seal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2004053040A JP4484032B2 (en) 2004-02-27 2004-02-27 Oil seal

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Publication Number Publication Date
JP2005240933A true JP2005240933A (en) 2005-09-08
JP4484032B2 JP4484032B2 (en) 2010-06-16

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JP2004053040A Expired - Lifetime JP4484032B2 (en) 2004-02-27 2004-02-27 Oil seal

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102996808A (en) * 2012-12-13 2013-03-27 青岛北海油封有限公司 Protective oil seal
KR101428065B1 (en) 2008-03-03 2014-08-07 현대자동차주식회사 Oil Seal

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101428065B1 (en) 2008-03-03 2014-08-07 현대자동차주식회사 Oil Seal
CN102996808A (en) * 2012-12-13 2013-03-27 青岛北海油封有限公司 Protective oil seal

Also Published As

Publication number Publication date
JP4484032B2 (en) 2010-06-16

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