JPS59133867U

JPS59133867U - Sealing device

Info

Publication number: JPS59133867U
Application number: JP2720683U
Authority: JP
Inventors: 大竹　惟雄
Original assignee: エヌオーケー株式会社
Priority date: 1983-02-28
Filing date: 1983-02-28
Publication date: 1984-09-07
Also published as: JPS6238052Y2

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図は従来技術によるシール装置の一例を示す断面図
、第２図は第１図のシール装置に使用されたバックアッ
プリングの形状を示す断面図、第３図は同じく平面図、
第４図は本考案によるシール装置の実施例を示す断面図
、第５図は第４図のシール装置に使用されたバックアッ
プリングの切断部の形状を示す斜視図、第６図は本考案
によるシール装置の他の実施例を示す断面図である。１・・・スリッパリング、２・・・バックリング、３・
・・バックアップリング、５，６・・・相対運動部材、
７・・・環状溝、９・・・隙間。FIG. 1 is a sectional view showing an example of a conventional sealing device, FIG. 2 is a sectional view showing the shape of a backup ring used in the sealing device of FIG. 1, and FIG. 3 is a plan view of the same.
FIG. 4 is a cross-sectional view showing an embodiment of the sealing device according to the present invention, FIG. 5 is a perspective view showing the shape of the cut portion of the backup ring used in the sealing device of FIG. 4, and FIG. 6 is a cross-sectional view showing an embodiment of the sealing device according to the present invention. FIG. 7 is a sectional view showing another embodiment of the sealing device. 1...Slipper ring, 2...Buck ring, 3.
... Backup ring, 5, 6... Relative motion member,
7... Annular groove, 9... Gap.

Claims

[Scope of utility model registration request]

A slipper ring 1 is made of a synthetic resin material and slides on the peripheral surface of one of the two members that move relative to each other, and a slipper ring 1 is made of a rubber-like elastic material and slides between the other of the two members that move relatively. A back ring 2 which is inserted between and biases the slipper ring 1; and a back ring 2 which is made of a synthetic resin material harder than the material of the slipper ring 1;
In the seal device having a backup ring 3 disposed on an axial side of the slipper ring 1, a contact surface between the backup ring 3 and the slipper ring 1 and the buck ring 2 or the slipper ring 1 is truncated. The backup ring 3 is formed with a surface.
A sealing device characterized in that the cut surface is formed by a plane that is inclined with respect to the central axis and a radius passing through the cut portion.