JPH0323257U

JPH0323257U -

Info

Publication number: JPH0323257U
Application number: JP1989083684U
Authority: JP
Priority date: 1989-07-17
Filing date: 1989-07-17
Publication date: 1991-03-11

Description

[Brief explanation of drawings]

第１図はこの考案によるオイルシールの１実施
例を示す部分縦断面図、第２図は第１図の部分拡
大図、第３図はこの考案によるオイルシールを自
動車のラツクピニオン式パワーステアリング装置
のギヤハウジングの端部に固定された油圧シリン
ダの端部に用いた状態を示す部分縦断面図、第４
図はこの考案によるオイルシールの他の実施例を
示す第２図相当の図である。１……オイルシール、２……シールリツプ、４
，１１……オイル側異物侵入防止リツプ部、４ａ
，４ｂ，１１ａ，１１ｂ……傾斜面、５，１２…
…主密封リツプ部、５ａ，５ｂ，１２ａ，１２ｂ
……傾斜面、６，１３……空気側異物侵入防止リ
ツプ部、６ａ，６ｂ，１３ａ，１３ｂ……傾斜面
、Ｘ１，Ｙ１……オイル側異物侵入防止リツプ部
の傾斜面と密封面とのなす角度、Ｘ２，Ｙ２……
主密封リツプ部の傾斜面と密封面とのなす角度、
Ｘ３，Ｙ３……空気側異物侵入防止リツプ部の傾
斜面と密封面とのなす角度。 Fig. 1 is a partial vertical sectional view showing one embodiment of the oil seal according to this invention, Fig. 2 is a partially enlarged view of Fig. 1, and Fig. 3 is a partial longitudinal sectional view showing an embodiment of the oil seal according to this invention. Partial longitudinal cross-sectional view showing a state in which the hydraulic cylinder is used at the end of the gear housing fixed to the end of the gear housing, No. 4
This figure is a view corresponding to FIG. 2 showing another embodiment of the oil seal according to this invention. 1...Oil seal, 2...Seal lip, 4
, 11...oil side foreign matter intrusion prevention lip part, 4a
, 4b, 11a, 11b... inclined surface, 5, 12...
...Main sealing lip part, 5a, 5b, 12a, 12b
... Sloped surface, 6, 13 ... Air side foreign matter intrusion prevention lip section, 6a, 6b, 13a, 13b ... Slope surface, X1, Y1 ... Oil side foreign matter intrusion prevention lip section and sealing surface Angle, X2, Y2...
The angle between the inclined surface of the main sealing lip and the sealing surface,
X3, Y3...Angle between the slope of the air side foreign matter intrusion prevention lip and the sealing surface.

Claims

[Scope of utility model registration request]

Cross section 3 from the oil side on the inner peripheral surface of the seal lip.
Square oil side foreign matter intrusion prevention lip, cross section 3
A rectangular main sealing lip and a triangular cross-section air-side foreign matter prevention lip are formed, and the angle between both inclined surfaces of the oil-side foreign matter prevention lip and the sealing surface is such that the oil side is closer to the air side than the air side. The angle between both inclined surfaces of the main sealing lip and the sealing surface is larger on the oil side than on the air side, and the angle between both inclined surfaces of the air side foreign matter intrusion prevention lip and the sealing surface is larger on the air side than on the air side. An oil seal for reciprocating shafts that is larger than the oil side.