WO2009031199A1 - 密封装置 - Google Patents

密封装置 Download PDF

Info

Publication number
WO2009031199A1
WO2009031199A1 PCT/JP2007/067176 JP2007067176W WO2009031199A1 WO 2009031199 A1 WO2009031199 A1 WO 2009031199A1 JP 2007067176 W JP2007067176 W JP 2007067176W WO 2009031199 A1 WO2009031199 A1 WO 2009031199A1
Authority
WO
WIPO (PCT)
Prior art keywords
lip
tip
thread
seal lip
atmosphere side
Prior art date
Application number
PCT/JP2007/067176
Other languages
English (en)
French (fr)
Inventor
Yoshihiro Syamoto
Original Assignee
Arai Seisakusho Co., Ltd.
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 Arai Seisakusho Co., Ltd. filed Critical Arai Seisakusho Co., Ltd.
Priority to EP07806644.6A priority Critical patent/EP2189689B1/en
Priority to PCT/JP2007/067176 priority patent/WO2009031199A1/ja
Priority to CN200780100483.0A priority patent/CN101802466B/zh
Priority to US12/733,512 priority patent/US20100194055A1/en
Publication of WO2009031199A1 publication Critical patent/WO2009031199A1/ja

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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
    • F16J15/3244—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with hydrodynamic pumping action

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Sealing With Elastic Sealing Lips (AREA)

Abstract

【構成】回転軸に摺動接触するシールリップの大気側摺動面にねじを設けた密封装置であって、前記シールリップの大気側摺動面を、シールリップ先端を通り該リップが摺動接触する部材の表面から大気側に向かうにしたがって離れる方向の大きな曲線で形成し、リップ先端から該リップ先端から遠い所要位置に形成された所定高さの隆起部までの間を連繋して断面三角形状のねじを形成し、該ねじのねじ山の稜線を直線状に形成し、ねじ山の高さをリップ先端より離れるにしたがって徐々に高くなるように構成したねじ部を前記大気側摺動面に形成したこと。 【効果】ねじ山の稜線が直線状となっているため、軸とシールリップ間の空間を保持することができ、そのため進入したダストをシールリップ先端の接触部に誘導する危険性を抑制することができ、シールリップに対するダストの噛み込みによる漏洩が防止できる。
PCT/JP2007/067176 2007-09-04 2007-09-04 密封装置 WO2009031199A1 (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP07806644.6A EP2189689B1 (en) 2007-09-04 2007-09-04 Hermetic sealing device
PCT/JP2007/067176 WO2009031199A1 (ja) 2007-09-04 2007-09-04 密封装置
CN200780100483.0A CN101802466B (zh) 2007-09-04 2007-09-04 密封装置
US12/733,512 US20100194055A1 (en) 2007-09-04 2007-09-04 Hermetic sealing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2007/067176 WO2009031199A1 (ja) 2007-09-04 2007-09-04 密封装置

Publications (1)

Publication Number Publication Date
WO2009031199A1 true WO2009031199A1 (ja) 2009-03-12

Family

ID=40428522

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2007/067176 WO2009031199A1 (ja) 2007-09-04 2007-09-04 密封装置

Country Status (4)

Country Link
US (1) US20100194055A1 (ja)
EP (1) EP2189689B1 (ja)
CN (1) CN101802466B (ja)
WO (1) WO2009031199A1 (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7469065B2 (ja) 2020-02-18 2024-04-16 株式会社ジェイテクトシーリングテクノ 密封装置及び密封構造

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2686586B1 (en) 2011-03-17 2016-12-21 Federal-Mogul Corporation Low torque radial shaft seal assembly
JP5637172B2 (ja) * 2012-04-27 2014-12-10 Nok株式会社 密封装置
JP6177582B2 (ja) * 2013-05-14 2017-08-09 Nok株式会社 密封装置
JP6267475B2 (ja) * 2013-10-04 2018-01-24 Nok株式会社 密封装置
WO2015053170A1 (ja) * 2013-10-10 2015-04-16 Nok株式会社 密封装置
JP6231352B2 (ja) * 2013-10-29 2017-11-15 Nok株式会社 オイルシール
CN110206751A (zh) * 2019-04-16 2019-09-06 上海威纳工程技术有限公司 一种新型泵轴密封装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61129966U (ja) * 1984-04-27 1986-08-14
JPH0530638U (ja) * 1991-09-30 1993-04-23 エヌオーケー株式会社 密封装置

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5759466A (en) * 1995-05-25 1998-06-02 Nok Corporation Method of making lip-type oil seals having improved sealing edge
EP0939257A3 (en) * 1998-02-27 2000-05-31 NOK Corporation Oil seal
JPH11270697A (ja) * 1998-03-23 1999-10-05 Nok Corp オイルシール
JP4244442B2 (ja) * 1998-06-12 2009-03-25 Ｎｏｋ株式会社 密封装置
DE10033446C5 (de) * 2000-07-10 2006-12-14 Dichtungstechnik G. Bruss Gmbh & Co. Kg Wellendichtring
US6729624B1 (en) * 2001-02-20 2004-05-04 Freudenberg-Nok General Partnership Radial shaft seal
JP4366897B2 (ja) * 2002-02-28 2009-11-18 Ｎｏｋ株式会社 成形型の加工方法
JP2005172061A (ja) * 2003-12-09 2005-06-30 Nok Corp 密封装置
DE102004020966B4 (de) * 2004-04-28 2016-01-07 Carl Freudenberg Kg Radialwellendichtring
JP4873120B2 (ja) * 2004-08-31 2012-02-08 Ｎｏｋ株式会社 オイルシール
TWI275723B (en) * 2005-12-29 2007-03-11 Nak Sealing Technologies Corp Sealing component
US8413995B2 (en) * 2007-04-11 2013-04-09 Nok Corporation Oil seal
US8454025B2 (en) * 2010-02-24 2013-06-04 Freudenberg-Nok General Partnership Seal with spiral grooves and mid-lip band

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61129966U (ja) * 1984-04-27 1986-08-14
JPH0530638U (ja) * 1991-09-30 1993-04-23 エヌオーケー株式会社 密封装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7469065B2 (ja) 2020-02-18 2024-04-16 株式会社ジェイテクトシーリングテクノ 密封装置及び密封構造

Also Published As

Publication number Publication date
EP2189689B1 (en) 2014-11-12
US20100194055A1 (en) 2010-08-05
EP2189689A4 (en) 2012-06-06
EP2189689A1 (en) 2010-05-26
CN101802466B (zh) 2013-06-12
CN101802466A (zh) 2010-08-11

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