JPS5858144U

JPS5858144U - High pressure sealing device

Info

Publication number: JPS5858144U
Application number: JP1981153318U
Authority: JP
Inventors: 光男吉村; 高岡　哲夫
Original assignee: エヌオーケー株式会社
Priority date: 1981-10-15
Filing date: 1981-10-15
Publication date: 1983-04-20
Also published as: JPS6212934Y2

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は従来のオイルシールの半断面図、第２図は本考
案の密封装置の半断面図である。Ａ・・・環状体のシール部先端から軸方内部周面までの
肉厚寸法、Ｂ・・・環状体のシール部先端から径方向部
周面までの肉厚寸法、１・・・軸、２・・・受圧側面、
３・・・環状凹部、４・・・シールリップ、５・・・シ
ール部、６・・・補強環、７・・・環状体、８・・・径
方向部、９・・・周面、１０・・・端面、１１・・・外
周面、１２・・・ハウジング、１３・・・支持部材、１
４・・・支持面、１５・・・内周面、１６・・・軸方向
部、５５・・・環状体、５６・・・径方向部、５７・・
・補強環、５９・・・内周面、６０・・・シールリップ
。 −第１図第２図FIG. 1 is a half-sectional view of a conventional oil seal, and FIG. 2 is a half-sectional view of the sealing device of the present invention. A: Thickness dimension from the tip of the seal part of the annular body to the axial inner circumferential surface, B... Thickness dimension from the tip of the seal part of the annular body to the circumferential surface of the radial part, 1... Shaft, 2...Pressure receiving side,
3... Annular recess, 4... Seal lip, 5... Seal portion, 6... Reinforcement ring, 7... Annular body, 8... Radial direction portion, 9... Circumferential surface, DESCRIPTION OF SYMBOLS 10... End surface, 11... Outer peripheral surface, 12... Housing, 13... Support member, 1
4... Support surface, 15... Inner peripheral surface, 16... Axial direction part, 55... Annular body, 56... Radial direction part, 57...
- Reinforcement ring, 59...Inner peripheral surface, 60...Seal lip. -Figure 1Figure 2

Claims

[Scope of utility model registration request]

The shaft member 1 and the hole member 12, which are fitted and move relative to each other, are fitted into the fitting circumferential surface of one member, and the end surface 10 opposite to the pressure receiving side is supported in contact with the fitting circumferential surface of the other member. The sealing device is an annular body 7 made of a rubber-like elastic material and having a U-shaped cross section, and has an annular recess 3 on the pressure receiving side 2 and seals by contacting with the annular recess 3. a seal lip 4 provided with a seal portion 5 in contact with the other member on one side of the seal lip 4;
A reinforcing ring 6 having a radial portion 8 and an axial portion 16 is integrally fixed to the annular body 7 so that the radial portion 8 exists on the opposite side of the pressure receiving side 2 of the annular body 7. However, for installation, the radial thickness dimension B from the tip of the seal portion 5 of the annular body 7 to the circumferential surface 9 of the radial portion 8 and the tip of the seal portion 5 of the annular body 7 in the previous state are determined. The axial portion 16
A sealing device in which the wall thickness dimension B is set such that the relationship between the wall thickness dimension A in the radial direction up to the side circumferential surface of the seal lip 4 is B/A≧0.6. ,