Water-proof sealing structure for an electric junction box
US5574254A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | May 17, 1995 |
| Grant date | Nov 12, 1996 |
| Priority date | — |
| Expiry date | May 17, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S220/14
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.