JPS62100373U

JPS62100373U -

Info

Publication number: JPS62100373U
Application number: JP1985192853U
Authority: JP
Priority date: 1985-12-13
Filing date: 1985-12-13
Publication date: 1987-06-26

Description

[Brief explanation of the drawing]

第１図ないし第３図は本考案の一実施例を示し
、第１図は両方向回転用シールの要部を一部断面
で示す斜視図、第２図は第１図の―線に沿つ
た同断面図、第３図は軸回転時における同シール
のポンプ作用による油の流れを示す図、第４図お
よび第５図は従来の一方向回転用シールのそれぞ
れ第１図および第３図に対応する図、第６図ない
し第８図は従来の両方向回転用シールのそれぞれ
第１図ないし第３図に対応する図である。１……シール、４……シールリツプ、４ａ……
傾斜面（空気側）、４ｃ……先端縁（シールリツ
プ）、７……ポンプ手段、８……第１のリブ、９
……第２のリブ、１１……交差部。 Figures 1 to 3 show one embodiment of the present invention, Figure 1 is a perspective view showing a partial cross section of the main part of a bidirectional rotary seal, and Figure 2 is a perspective view taken along the line - in Figure 1. The cross-sectional view and Figure 3 are diagrams showing the flow of oil due to the pump action of the seal when the shaft rotates, and Figures 4 and 5 are the same as Figures 1 and 3, respectively, of the conventional one-way rotation seal. The corresponding figures, FIGS. 6 through 8, are views of a conventional bidirectional rotary seal, corresponding to FIGS. 1 through 3, respectively. 1... Seal, 4... Seal lip, 4a...
Inclined surface (air side), 4c... Tip edge (seal lip), 7... Pump means, 8... First rib, 9
...Second rib, 11...Intersection.

Claims

[Scope of utility model registration request]

An annular sealing lip having a wedge-shaped cross section and having inclined surfaces inclined in opposite directions on the inner circumferential surface, and a first sealing lip inclined in opposite directions with respect to the distal end edge of the sealing lip on the air side inclined surface of the sealing lip. A large number of ribs and second ribs are formed to intersect with each other over the entire circumference, and the heights of the ribs are set to alternately differ every other rib in the circumferential direction. Seal for bidirectional rotation.