JPS5897359U

JPS5897359U - bellows seal

Info

Publication number: JPS5897359U
Application number: JP19253881U
Authority: JP
Inventors: 秀和高橋
Original assignee: イ−グル工業株式会社
Priority date: 1981-12-25
Filing date: 1981-12-25
Publication date: 1983-07-02
Also published as: JPS6234056Y2

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]

図面は本考案ベローズシールの一実施例を示すもので、
第１図は従来のベローズシールを示す正断面図、第２図
は本考案のベローズシールの正断面図、第３図は第２図
におけるＡ−Ａ線断面図、第４図は同要部拡大正断面図
である。１０・・・・・・フローティングシート、１１・・・・
・・フランジ、１３・・・・・・シャフト、１４・・・
・・・インサート、１６・・・・・・ベローズ、１７・
・・・・・スプリングリテーナ、１Ｂ・・・・・・クラ
ンピングリング、２１・・・・・・スプリン　−グアダ
プタ、２２・・・・・・ノックピン、２３・・・・・・
コイルスプリング、２４・・・・・・環状空間、２５・
・・・・・環状突起、ｄ・・・・・・間隙。The drawing shows one embodiment of the bellows seal of the present invention.
Figure 1 is a front sectional view showing a conventional bellows seal, Figure 2 is a front sectional view of the bellows seal of the present invention, Figure 3 is a sectional view taken along line A-A in Figure 2, and Figure 4 is the same main part. It is an enlarged front sectional view. 10...Floating sheet, 11...
...Flange, 13...Shaft, 14...
...Insert, 16...Bellows, 17.
... Spring retainer, 1B ... Clamping ring, 21 ... Spring adapter, 22 ... Dowel pin, 23 ...
Coil spring, 24... Annular space, 25.
...Annular protrusion, d...Gap.

Claims

[Scope of utility model registration request]

(1) In the clamping ring that airtightly fixes the rear end of the bellows made of corrosion-resistant resin such as tetrafluoroethylene resin to the shaft, a retaining groove is formed on the end surface side where the spring adapters fit. and engages with the rear end of the dowel pin protruding through the spring adapter in the direction of rotation,
The tip of the dowel pin is inserted into a pin hole drilled at the rear end of the spring retainer to transmit the rotation of the shaft to the spring retainer, and an insert and a flange that rotate together with the spring retainer are provided. A bellows seal characterized in that the knock pin is not exposed in an annular space formed on the outer periphery of the sliding surface of the floating sheet.

(2) The spring retainer is formed of a corrosion-resistant resin such as tetrafluoroethylene resin, and a thin annular projection is formed on the outer periphery of the rear end of the spring retainer so as to be close to the rear end surface of the flange. The bellows seal according to claim 1, which is characterized in that a fringer effect is produced in the gap between the rear end surface and the annular projection.