| 摘要 |
Sealed conduit for electric cables which is closed against the penetration of dust and liquids, for running electrical cables or the like. These conduits are formed by a number of successive straight and/or curved portions, each one consisting of a corresponding channel with U-shaped profile and inwardly pleated or folded edges and of its corresponding closure cover placed in such a manner that it may be opened, although being provisionally held, whilst water and dust are present, over the respective covering. Its purpose is hermetically to seal the connections between each one of the portions, in correspondence with the covers closing the channels, perfect closure which is sealed against water and dust being obtained with simple means, even after a long period of time and after repeated conduit assembly operations, whilst allowing offsetting of the inevitable reductions in elasticity and/or thickness of the fittings (sheathings, linings). <IMAGE>
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