JPS593065U

JPS593065U - sealing device

Info

Publication number: JPS593065U
Application number: JP1982098401U
Authority: JP
Inventors: 昌彦山崎
Original assignee: 株式会社ナブコ
Priority date: 1982-06-29
Filing date: 1982-06-29
Publication date: 1984-01-10

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、本考案の一実施例である密封装置を断面にて
示す図である。１・・・密封装置、２・・・バックアップリング、３・
・・密封部材、４・・・可動ピストン、８・・・周縁部
、９・・・まるみ部、１１・・・錐面、Ａ、　Ｂ、　Ｃ
・・・隙間。FIG. 1 is a cross-sectional view of a sealing device that is an embodiment of the present invention. 1...Sealing device, 2...Backup ring, 3.
...Sealing member, 4...Movable piston, 8...Periphery, 9...Rounded part, 11...Conical surface, A, B, C
···gap.

Claims

[Scope of utility model registration request]

A rubber sealing member that is tightly attached to one member and can be in tight elastic contact with the other member, and a rubber sealing member that is disposed adjacent to the low pressure side of the sealing member. One of the peripheral parts has a back-up ring in the form of a plate ring that can come into contact with the other member, and the sealing member is prevented from being deformed and intruding into the gap between the two members due to receiving pressure. In the apparatus, the sealing device includes a thinned portion that forms a gap that gradually increases toward the sealing member between the one member and the other peripheral edge of the backup ring. Device.