JPS61137165U - - Google Patents

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本考案リツプシールの第１の実施例を
示す半截断面図、第２図は同要部拡大断面図、第
３図は漏洩試験結果を表わすグラフ、第４図は摩
耗試験結果を示す説明図、第５図および第６図は
それぞれ本考案の他の実施例を示す要部拡大断面
図、第７図は従来のリツプシールの１例を示す半
裁断面図である。 １……リツプシール、２……ハウジング、３…
…軸孔、７……ケース、９……リテーナ、１０…
…シート、１１……回転軸、１２ａ，１２ｂ，１
４ａ，１４ｂ，１５……テーパ面、Ａ……内封流
体。 Fig. 1 is a half-cut sectional view showing the first embodiment of the lip seal of the present invention, Fig. 2 is an enlarged sectional view of the same essential part, Fig. 3 is a graph showing the leak test results, and Fig. 4 shows the wear test results. The explanatory drawings, FIGS. 5 and 6 are enlarged sectional views of main parts showing other embodiments of the present invention, and FIG. 7 is a half-cut sectional view showing an example of a conventional lip seal. 1...lip seal, 2...housing, 3...
...Shaft hole, 7...Case, 9...Retainer, 10...
... Sheet, 11 ... Rotating shaft, 12a, 12b, 1
4a, 14b, 15... Tapered surface, A... Enclosed fluid.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 機器のハウジングの軸孔内周に気密的に嵌着さ
れる環状の金属ケースと、外径部が該ケースに気
密的に固着された環状の樹脂製シートとよりなり
、該シートの内径部が内封流体側へ湾曲もしくは
折曲するごとく突出した状態で適宜締め代をもつ
て回転軸の外周面に摺接し、前記内封流体を密封
するリープシールにおいて、前記シート内径部の
突出端面に、前記回転軸の外周面に対して適宜角
度をなすテーパ面が周設されてなることを特徴と
するリツプシール。 It consists of an annular metal case that is hermetically fitted into the inner periphery of the shaft hole of the equipment housing, and an annular resin sheet whose outer diameter is hermetically fixed to the case, and whose inner diameter is In a leap seal that protrudes as if curved or bent toward the sealed fluid side and slides into sliding contact with the outer circumferential surface of the rotating shaft with an appropriate interference margin to seal the sealed fluid, on the protruding end surface of the inner diameter portion of the seat, A lip seal characterized in that a tapered surface forming an appropriate angle with respect to the outer circumferential surface of the rotating shaft is provided around the circumferential surface.