Electricity: conductors and insulators – Boxes and housings – Hermetic sealed envelope type
Patent
1995-05-17
1996-11-12
Wong, Peter S.
Electricity: conductors and insulators
Boxes and housings
Hermetic sealed envelope type
220DIG14, 361641, H02G 314
Patent
active
055742548
ABSTRACT:
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.
REFERENCES:
patent: 4335273 (1982-06-01), Levin
patent: 4780578 (1988-10-01), Heskel
patent: 4893215 (1990-01-01), Urushiwara et al.
patent: 5135108 (1992-08-01), Nestlen et al.
patent: 5264661 (1993-11-01), Luettgen
Kumagai Fumio
Mori Fumimasa
Odake Masato
Shimizu Kazuhiro
Arai Seisakusho Co., Ltd.
Ghosh Paramita
Wong Peter S.
Yazaki -Corporation
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