Water-proof sealing structure for an electric junction box

A water-proof sealing structure for an electric junction box including a main box having a first fitting portion and a water-proof covering having a second fitting portion to be mated with the first fitting portion; wherein either the first or second fitting portion is integrally formed with an elas...

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Bibliographische Detailangaben
Hauptverfasser: MORI, FUMIMASA, KUMAGAI, FUMIO, SHIMIZU, KAZUHIRO, ODAKE, MASATO
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:A water-proof sealing structure for an electric junction box including a main box having a first fitting portion and a water-proof covering having a second fitting portion to be mated with the first fitting portion; wherein either the first or second fitting portion is integrally formed with an elastomer-made fitting groove having a narrowed portion therein, while the other fitting portion is formed with a locking projection wall provided with a stopper; wherein the locking projection wall is suppressed by the narrowed portion when inserted into the fitting groove, forming simultaneously an air-keeping section between a top end of the locking projection wall and an innermost portion of the fitting groove. With the construction above, a large force is not required for the fitting operation, an easy fitting between the water-proof covering and the main box is made possible, the locking member is substantially simplified, and also a sufficiently strong adhesive force is provided by the locking member which is made by monolithically molding a synthetic resin but not a metal.