FLOOR INSPECTION PORT

To provide a floor inspection port having an elastic sealing material installed in an upper part between a lid body side surface and an outer frame inner surface, and capable of preventing sealing performance from declining depending on the fitting state of a lid body in an outer frame.SOLUTION: Thi...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: HAYASHI TORU, NAGATANI ARIHIRO, KURUSU TOKUJI, HOSOYA HIDEYASU
Format: Patent
Sprache:eng ; jpn
Schlagworte:
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Beschreibung
Zusammenfassung:To provide a floor inspection port having an elastic sealing material installed in an upper part between a lid body side surface and an outer frame inner surface, and capable of preventing sealing performance from declining depending on the fitting state of a lid body in an outer frame.SOLUTION: This floor inspection port comprises: an outer frame 3; and a lid body 4. A slope wall inner surface 11a and a first support upper surface 14a are formed in the inner surface of the outer frame 3. The side surface of the lid body 4 includes a slope wall outer surface 31a opposed to the slope wall inner surface 11a of the outer frame 3 and inclined so as to be wider in gap from the lope wall inner surface 11a of the outer frame 3 toward a lower part, and an annular groove 32 provided in the upper part of the slope wall outer surface 31a and opposed to the first support upper surface 14a of the outer frame 3. A gasket material 33 is held in the annular groove 32 of the lid body 4.SELECTED DRAWING: Figure 3 【課題】蓋体側面と外枠内面との間の上部に弾性シール材が配置された床点検口において、そのシール性能が、外枠内への蓋体の嵌挿状態によって低下することを防止する。【解決手段】外枠3と蓋体4とが備えられている。外枠3の内面に傾斜壁部内面11aと第1支持部上面14aとが備えられ、蓋体4の側面に、外枠3の傾斜壁部内面11aに対向しつつ下方に向かうに従って外枠3の傾斜壁部内面11aとの間隔が拡がるように傾斜される傾斜壁部外面31aと、傾斜壁部外面31aの上部に設けられて外枠3の第1支持部上面14aに対向する環状溝部32と、が備えられ、蓋体4の環状溝部32内にパッキング材33が保持されている。【選択図】 図3