JPH0381460U - - Google Patents

Info

Publication number
JPH0381460U
JPH0381460U JP1990081404U JP8140490U JPH0381460U JP H0381460 U JPH0381460 U JP H0381460U JP 1990081404 U JP1990081404 U JP 1990081404U JP 8140490 U JP8140490 U JP 8140490U JP H0381460 U JPH0381460 U JP H0381460U
Authority
JP
Japan
Prior art keywords
lip
oil seal
pressure
spring
resistant oil
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
JP1990081404U
Other languages
Japanese (ja)
Other versions
JPH0733016Y2 (en
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 filed Critical
Priority to JP1990081404U priority Critical patent/JPH0733016Y2/en
Publication of JPH0381460U publication Critical patent/JPH0381460U/ja
Application granted granted Critical
Publication of JPH0733016Y2 publication Critical patent/JPH0733016Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Sealing With Elastic Sealing Lips (AREA)

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は、この考案の第１実施例の偏心動用耐
圧オイルシールの断面図、第２図は第１図のオイ
ルシールの内側に高圧が作用したときの状態を示
す、第１図と同様の断面図、第３図はこの考案の
第２実施例の偏心動用耐圧オイルシールの断面図
、第４図は第３図のオイルシールの内側に高圧が
作用したときの状態を示す、第３図と同様の断面
図、第５図から第７図は上記第２実施例のオイル
シールの変形例を示す部分断面図、第８図は従来
の耐圧オイルシールの一例を示す断面図である。 １１……シール部材、１２……バツクアツプリ
ング、１３……ホルダー、１４……軸、１５，１
６，１７，３１……リツプ、１８……リツプ部、
１９……補強環、２０……取付部、２１……湾曲
部、２２……シール部材支持部、２３……スプリ
ング、２４……偏心動追従強制部、２５……円板
部、２６……円筒部、３０，３０′，３０″，３
０……安定化リツプ、Ａ……内部、Ｂ……外部
、Ｃ……流体圧力方向。 Fig. 1 is a cross-sectional view of the eccentric dynamic pressure-resistant oil seal of the first embodiment of this invention, and Fig. 2 is similar to Fig. 1, showing the state when high pressure is applied to the inside of the oil seal of Fig. 1. 3 is a sectional view of a pressure-resistant oil seal for eccentric operation according to a second embodiment of the invention, and FIG. 4 is a sectional view of the oil seal shown in FIG. 5 to 7 are partial sectional views showing modifications of the oil seal of the second embodiment, and FIG. 8 is a sectional view showing an example of a conventional pressure-resistant oil seal. 11... Seal member, 12... Backup spring, 13... Holder, 14... Shaft, 15, 1
6, 17, 31... lip, 18... lip part,
19... Reinforcement ring, 20... Mounting part, 21... Curved part, 22... Seal member support part, 23... Spring, 24... Eccentric movement following force part, 25... Disc part, 26... Cylindrical part, 30, 30', 30'', 3
0...Stabilizing lip, A...Internal, B...External, C...Fluid pressure direction.

Claims (1)

【実用新案登録請求の範囲】 (1) 軸に当接する少なくとも一条のリツプを有
するリツプ部と補強環により補強された取付部と
の間を薄肉の湾曲部で連結したシール部材と、 前記シール部材の湾曲部の軸方向外側面に沿う
形状を有するシール部材支持部を有するバツクア
ツプリングと、 前記シール部材の取付部に固定されて前記バツ
クアツプリングを径方向に移動可能に保持するホ
ルダーとを備えた偏心動用耐圧オイルシール。 (2) 請求項１に記載の偏心動用耐圧オイルシー
ルにおいて、前記バツクアツプリングに、前記シ
ール部材のリツプ部の径方向外周面またはそこに
取付けられたスプリングにほぼ接するように偏心
動追従強制部を設けたことを特徴とする偏心動用
耐圧オイルシール。 (3) 請求項１又は２に記載の偏心動用耐圧オイ
ルシールにおいて、前記リツプ部が、前記リツプ
よりも軸方向内側に位置していて前記リツプ部の
軸方向内側面から軸へ向けて傾斜して延び、先端
が軸に接触する安定化リツプを有することを特徴
とする偏心動用耐圧オイルシール。[Claims for Utility Model Registration] (1) A sealing member in which a lip portion having at least one lip that contacts a shaft and a mounting portion reinforced by a reinforcing ring are connected by a thin curved portion; and the sealing member. a back-up spring having a seal member support portion having a shape along an axial outer surface of a curved portion of the back-up spring; and a holder fixed to a mounting portion of the seal member to hold the back-up spring movably in a radial direction. Equipped with an eccentric dynamic pressure-resistant oil seal. (2) In the pressure-resistant oil seal for eccentric movement according to claim 1, an eccentric movement following forcing part is provided on the backup spring so as to substantially contact the radial outer peripheral surface of the lip portion of the seal member or the spring attached thereto. A pressure-resistant oil seal for eccentric operation, which is characterized by the provision of. (3) In the pressure-resistant oil seal for eccentric movement according to claim 1 or 2, the lip portion is located axially inside the lip and is inclined toward the shaft from the axially inner surface of the lip portion. A pressure-resistant oil seal for eccentric motion, characterized by having a stabilizing lip that extends from the top and has a tip that contacts the shaft.
JP1990081404U 1989-09-29 1990-07-31 Pressure resistant oil seal for eccentric movement Expired - Lifetime JPH0733016Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1990081404U JPH0733016Y2 (en) 1989-09-29 1990-07-31 Pressure resistant oil seal for eccentric movement

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP11441489 1989-09-29
JP1-114414 1989-09-29
JP1990081404U JPH0733016Y2 (en) 1989-09-29 1990-07-31 Pressure resistant oil seal for eccentric movement

Publications (2)

Publication Number Publication Date
JPH0381460U true JPH0381460U (en) 1991-08-20
JPH0733016Y2 JPH0733016Y2 (en) 1995-07-31

Family

ID=31890198

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1990081404U Expired - Lifetime JPH0733016Y2 (en) 1989-09-29 1990-07-31 Pressure resistant oil seal for eccentric movement

Country Status (1)

Country Link
JP (1) JPH0733016Y2 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003044397A1 (en) * 2001-11-22 2003-05-30 Nok Corporation Pressure release valve
JP2007263234A (en) * 2006-03-28 2007-10-11 Komatsu Ltd Bearing seal and bearing device
JP2009216117A (en) * 2008-03-07 2009-09-24 Nok Corp Seal for universal coupling
JP2011231781A (en) * 2010-04-23 2011-11-17 Nippon Valqua Ind Ltd Sliding seal component
JP2015102120A (en) * 2013-11-22 2015-06-04 光洋シーリングテクノ株式会社 Sealing device
KR20190116440A (en) * 2017-02-17 2019-10-14 트렐레보르크 씰링 솔루션즈 저머니 게엠베하 Sealing device with improved lubrication

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003044397A1 (en) * 2001-11-22 2003-05-30 Nok Corporation Pressure release valve
CN100433412C (en) * 2001-11-22 2008-11-12 Nok株式会社 Pressure release valve
JP2007263234A (en) * 2006-03-28 2007-10-11 Komatsu Ltd Bearing seal and bearing device
JP2009216117A (en) * 2008-03-07 2009-09-24 Nok Corp Seal for universal coupling
JP2011231781A (en) * 2010-04-23 2011-11-17 Nippon Valqua Ind Ltd Sliding seal component
JP2015102120A (en) * 2013-11-22 2015-06-04 光洋シーリングテクノ株式会社 Sealing device
KR20190116440A (en) * 2017-02-17 2019-10-14 트렐레보르크 씰링 솔루션즈 저머니 게엠베하 Sealing device with improved lubrication
JP2020508425A (en) * 2017-02-17 2020-03-19 トレレボリ シーリング ソリューションズ ジャーマニー ゲー・エム・ベー・ハーＴｒｅｌｌｅｂｏｒｇ Ｓｅａｌｉｎｇ Ｓｏｌｕｔｉｏｎｓ Ｇｅｒｍａｎｙ ＧｍｂＨ Seal assembly with optimized lubrication properties

Also Published As

Publication number Publication date
JPH0733016Y2 (en) 1995-07-31

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