PROBLEM TO BE SOLVED: To provide a sealing device capable of suppressing deterioration of service life of a side lip due to movement of a slinger with which the side lip slidably contacts.SOLUTION: A seal member 2 of a sealing device 1 includes a main lip 62 and an auxiliary lip 63 sliding on an outer peripheral surface 81a of a shaft 81, and a side lip 64 extending in an axial direction and sliding on a slide surface 12a of a slinger 10. In the side lip 64, a plurality of open holes 68 penetrating radially is formed with a predetermined interval in a circumferential direction. In each open hole 68, a porous member 71 configured to restrict moisture from permeating while allowing air to permeate is buried so as to block the open hole 68.SELECTED DRAWING: Figure 1

    【課題】サイドリップが摺接するスリンガの移動に起因してサイドリップの寿命が低下するのを抑制することができる密封装置を提供する。【解決手段】密封装置1のシール部材2は、軸81の外周面81aに摺接する主リップ62および補助リップ63と、軸方向に延びかつスリンガ10の摺接面12aに摺接するサイドリップ64とを有する。サイドリップ64には、径方向に貫通する貫通孔68が周方向に所定間隔をおいて複数形成されている。各貫通孔68には、空気が透過するのを許容しつつ水分が透過するのを制限する多孔質部材71が、貫通孔68を塞ぐように埋め込まれている。【選択図】図1


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    Title :

    SEALING DEVICE


    Additional title:

    密封装置


    Contributors:

    Publication date :

    2017-05-25


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    F16J Kolben , PISTONS / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES



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