JPH0327806U - - Google Patents

Info

Publication number
JPH0327806U
JPH0327806U JP1989088447U JP8844789U JPH0327806U JP H0327806 U JPH0327806 U JP H0327806U JP 1989088447 U JP1989088447 U JP 1989088447U JP 8844789 U JP8844789 U JP 8844789U JP H0327806 U JPH0327806 U JP H0327806U
Authority
JP
Japan
Prior art keywords
seal
valve stem
seal lip
lip
slidably inserted
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
JP1989088447U
Other languages
Japanese (ja)
Other versions
JPH0511285Y2 (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 JP1989088447U priority Critical patent/JPH0511285Y2/ja
Publication of JPH0327806U publication Critical patent/JPH0327806U/ja
Application granted granted Critical
Publication of JPH0511285Y2 publication Critical patent/JPH0511285Y2/ja
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 drawings]

第１図は本考案のバルブステムシールの一実施
例を示す断面図、第２図はシールリツプ部の拡大
断面図、第３図はシールリツプ部の形状を示す拡
大平面図、第４図はシールリツプとバルブステム
との摺接部の周方向の面圧分布を示す特性図、第
５図は従来のバルブステムシールを装着したエン
ジンヘツド部の断面図、第６図は従来のバルブス
テムシールの断面図、第７図は第６図の部拡大
図である。 ７……バルブステム、８……ガイド、９ａ……
バルブステムシール、１４……シール筒、２１…
…シールリツプ、２２……締付けばね。 Fig. 1 is a sectional view showing an embodiment of the valve stem seal of the present invention, Fig. 2 is an enlarged sectional view of the seal lip, Fig. 3 is an enlarged plan view showing the shape of the seal lip, and Fig. 4 is an enlarged sectional view of the seal lip. A characteristic diagram showing the surface pressure distribution in the circumferential direction at the sliding contact area with the valve stem. Figure 5 is a cross-sectional view of the engine head equipped with a conventional valve stem seal. Figure 6 is a cross-sectional view of the conventional valve stem seal. , FIG. 7 is an enlarged view of a portion of FIG. 6. 7... Valve stem, 8... Guide, 9a...
Valve stem seal, 14...Seal tube, 21...
...Seal lip, 22...Tightening spring.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 軸方向に挿通されたバルブステムの摺動を案内
するガイドの端部に嵌装されてシールを行なうバ
ルブステムシールにおいて、前記バルブステムが
摺動自在に挿通されるシール筒と、前記バルブス
テムの外面に環状に密着する環状先端部を有して
前記シール筒の内面に突出形成されたシールリツ
プと、前記シールリツプの外周部に装着されてシ
ール筒を縮径させる締付力を付与する締付ばねと
を備え、前記シールリツプの環状の先端部が周方
向に不均一の面圧分布でバルブステム外面に密着
する形状に成形されていることを特徴とするバル
ブステムシール。 A valve stem seal that is fitted to the end of a guide that guides the sliding of a valve stem inserted in the axial direction to perform sealing includes a seal cylinder through which the valve stem is slidably inserted, and a seal cylinder through which the valve stem is slidably inserted; A seal lip having an annular tip that contacts the outer surface in an annular shape and protruding from the inner surface of the seal tube; and a tightening spring that is attached to the outer periphery of the seal lip and applies a tightening force to reduce the diameter of the seal tube. A valve stem seal, characterized in that the annular tip of the seal lip is shaped to tightly contact the outer surface of the valve stem with uneven surface pressure distribution in the circumferential direction.
JP1989088447U 1989-07-27 1989-07-27 Expired - Lifetime JPH0511285Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1989088447U JPH0511285Y2 (en) 1989-07-27 1989-07-27

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1989088447U JPH0511285Y2 (en) 1989-07-27 1989-07-27

Publications (2)

Publication Number Publication Date
JPH0327806U true JPH0327806U (en) 1991-03-20
JPH0511285Y2 JPH0511285Y2 (en) 1993-03-19

Family

ID=31638062

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1989088447U Expired - Lifetime JPH0511285Y2 (en) 1989-07-27 1989-07-27

Country Status (1)

Country Link
JP (1) JPH0511285Y2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008104823A (en) * 2006-10-24 2008-05-08 Shinichi Makise Automatic lower back and buttock massage machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008104823A (en) * 2006-10-24 2008-05-08 Shinichi Makise Automatic lower back and buttock massage machine

Also Published As

Publication number Publication date
JPH0511285Y2 (en) 1993-03-19

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