To provide an airtight structure of a door which can secure airtightness.SOLUTION: An expansion rubber 300 is arranged on a partition structure 1 along a circumference of an opening 121 for allowing a passenger to get on or off. When doors 200L, 200R are arranged at a closing position for closing the opening 121, compressed air is supplied to an internal space S of the expansion rubber 300 from a supply/discharge device. This expands the expansion rubber 300, and an abutted wall 321 of the expansion rubber 300 is abutted on back surfaces of the doors 200L, 200R. As a result, bearing pressure can be applied to a sealing surface of the expansion rubber 300 so that airtightness can be secured.SELECTED DRAWING: Figure 4

    【課題】気密性を確保できる扉の気密構造を提供すること。【解決手段】区画構造1には、乗客が乗降するための開口部121の周縁に沿って膨張ゴム300が配設される。開口部121を閉鎖する閉鎖位置に扉200L,200Rが配置されると、給排装置から膨張ゴム300の内部空間Sに圧縮空気が供給される。これにより、膨張ゴム300が膨張され、膨張ゴム300の被当接壁321が扉200L,200Rの背面に当接される。その結果、膨張ゴム300のシール面に面圧を付与でき、気密性を確保できる。【選択図】図4


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    Title :

    AIRTIGHT STRUCTURE OF DOOR


    Additional title:

    扉の気密構造


    Contributors:

    Publication date :

    2024-04-17


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B61B RAILWAY SYSTEMS , Eisenbahnanlagen / E06B Feste oder bewegliche Abschlüsse für Öffnungen in Bauwerken, Fahrzeugen, Zäunen oder ähnlichen Einfriedungen allgemein, z.B. Türen, Fenster, Läden, Tore , FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES, OR LIKE ENCLOSURES, IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES



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