SEALING DEVICE

PURPOSE: To provide a sealing device capable of realizing the durability of a seal by providing a third sealing member which is made of a resin, separately provided between a protective member and a flange part of a first sealing member, and brought into slidable contact with the flange part and the...

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Bibliographic Details
Main Author KIUCHI TETSUO
Format Patent
LanguageEnglish
Published 06.08.1996
Edition6
Subjects
BLASTING
CYLINDERS
ENGINEERING ELEMENTS AND UNITS
GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS
HEATING
LIGHTING
MECHANICAL ENGINEERING
PISTONS
SEALINGS
THERMAL INSULATION IN GENERAL
WEAPONS
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Summary:PURPOSE: To provide a sealing device capable of realizing the durability of a seal by providing a third sealing member which is made of a resin, separately provided between a protective member and a flange part of a first sealing member, and brought into slidable contact with the flange part and the protective member. CONSTITUTION: In a sealing device 1, an X ring 8 as a third sealing member is made of resin, first and second lips 81, 82 on the atmosphere side A are brought into sealable contact with the end face of a protective plate 7 on the sealed fluid side O, and third and fourth lips 83, 84 on the sealed fluid side O are brought into sealable contact with the end face of a flange part 4 of the first sealing member 5 respectively in a slidable manner to seal the space between the protective plate 7 and the flange part 4. Dusts such as muddy water entering the space 19 from the atmosphere side A are prevented from entering the inside of the sealed fluid side O by the X ring 8, a rubber projection 18A of the flange part 4, a rubber projection 13A of the second sealing member 6 and the second lip 15. The X ring is made of resin, and the wear resistance against the muddy water is improved.
Bibliography:Application Number: JP19950027736