JPS6446575U - - Google Patents

Info

Publication number
JPS6446575U
JPS6446575U JP1987142020U JP14202087U JPS6446575U JP S6446575 U JPS6446575 U JP S6446575U JP 1987142020 U JP1987142020 U JP 1987142020U JP 14202087 U JP14202087 U JP 14202087U JP S6446575 U JPS6446575 U JP S6446575U
Authority
JP
Japan
Prior art keywords
sealing device
reciprocating
contact angle
seal lip
inclined surface
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
JP1987142020U
Other languages
Japanese (ja)
Other versions
JPH0529419Y2 (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 JP1987142020U priority Critical patent/JPH0529419Y2/ja
Priority to US07/242,742 priority patent/US4995623A/en
Publication of JPS6446575U publication Critical patent/JPS6446575U/ja
Application granted granted Critical
Publication of JPH0529419Y2 publication Critical patent/JPH0529419Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Sealing With Elastic Sealing Lips (AREA)
  • Fluid-Damping Devices (AREA)

Description

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

第１図は本考案に係る往復動用密封装置の一実
施例を示す縦断面図、第２図は同実施例のシール
リツプとピストンロツドとの接触角を示す説明図
、第３図は同実施例の油を保持する室を示す縦断
面図、第４図は同実施例が適用されるシヨツクア
ブソーバの要部を示す縦断面図、第５図ａ，ｂは
従来の往復動用密封装置を示し、第５図ａは金属
環焼付タイプの密封装置の縦断面図、第５図ｂは
ゴム単体製の多段リツプタイプの密封装置の縦断
面図、第６図は従来の往復動用密封装置を適用し
たシヨツクアブソーバを示す縦断面図、第７図は
従来の多段リツプタイプの密封装置におけるシー
ルリツプとピストンロツドとの接触角を示す説明
図である。 符号の説明、７……往復動用密封装置、８……
密封装置本体、９……第１シールリツプ部（シー
ルリツプ）、１０……第２シールリツプ部（シー
ルリツプ）、１１……第３シールリツプ部（シー
ルリツプ）、９ａ，９ｂ，１０ａ，１０ｂ，１１
ａ，１１ｂ……傾斜面、１４，１５……室、Ａ，
Ｂ……接触角、α，β……角度。 Fig. 1 is a longitudinal sectional view showing an embodiment of the reciprocating sealing device according to the present invention, Fig. 2 is an explanatory diagram showing the contact angle between the seal lip and the piston rod of the same embodiment, and Fig. 3 is an illustration of the same embodiment. FIG. 4 is a vertical sectional view showing the main parts of a shock absorber to which the same embodiment is applied. FIGS. Figure 5a is a vertical sectional view of a metal ring baking type sealing device, Figure 5b is a vertical sectional view of a multi-stage lip type sealing device made of single rubber, and Figure 6 is a shock absorber to which a conventional reciprocating sealing device is applied. FIG. 7 is an explanatory view showing the contact angle between the seal lip and the piston rod in a conventional multi-stage lip type sealing device. Explanation of symbols, 7... Reciprocating sealing device, 8...
Sealing device main body, 9...first seal lip part (seal lip), 10...second seal lip part (seal lip), 11...third seal lip part (seal lip), 9a, 9b, 10a, 10b, 11
a, 11b... Inclined surface, 14, 15... Chamber, A,
B...Contact angle, α, β...Angle.

Claims (1)

【実用新案登録請求の範囲】 往復動軸に摺接して流体の漏れを防止する複数
のシールリツプを有する往復動用密封装置におい
て、 前記複数のシールリツプのうち密封すべき流体
に最も近いシールリツプについて、該シールリツ
プの内側に流体を導くため大気側の傾斜面の往復
動軸に対する接触角を密封すべき流体側の傾斜面
の往復動軸に対する接触角より大きく設定したこ
とを特徴とする往復動用密封装置。[Claims for Utility Model Registration] In a reciprocating sealing device having a plurality of seal lips that prevent fluid leakage by slidingly contacting a reciprocating shaft, the seal lip that is closest to the fluid to be sealed among the plurality of seal lips, A reciprocating sealing device characterized in that the contact angle of the inclined surface on the atmosphere side with the reciprocating shaft is set larger than the contact angle of the inclined surface on the fluid side to be sealed with the reciprocating shaft.
JP1987142020U 1987-09-11 1987-09-17 Expired - Lifetime JPH0529419Y2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP1987142020U JPH0529419Y2 (en) 1987-09-17 1987-09-17
US07/242,742 US4995623A (en) 1987-09-11 1988-09-09 Sealing device for reciprocating member

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1987142020U JPH0529419Y2 (en) 1987-09-17 1987-09-17

Publications (2)

Publication Number Publication Date
JPS6446575U true JPS6446575U (en) 1989-03-22
JPH0529419Y2 JPH0529419Y2 (en) 1993-07-28

Family

ID=31407601

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1987142020U Expired - Lifetime JPH0529419Y2 (en) 1987-09-11 1987-09-17

Country Status (1)

Country Link
JP (1) JPH0529419Y2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004092620A1 (en) * 1996-04-24 2004-10-28 Yoshiyuki Kanzaki Sealing device for reciprocation

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5947142U (en) * 1982-09-21 1984-03-29 エヌオーケー株式会社 Shock absorber
JPS59132935U (en) * 1983-02-24 1984-09-06 エヌオーケー株式会社 absorber seal

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5947142U (en) * 1982-09-21 1984-03-29 エヌオーケー株式会社 Shock absorber
JPS59132935U (en) * 1983-02-24 1984-09-06 エヌオーケー株式会社 absorber seal

Also Published As

Publication number Publication date
JPH0529419Y2 (en) 1993-07-28

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