| 摘要 |
PURPOSE: An extension hose for a vacuum cleaner is provided to improve use convenience by extending a flexible hose so that an electric current can be applied. CONSTITUTION: An extension hose for a vacuum cleaner comprises a suction device(5), an adapter, a female connector, and a male connector. The female and male connectors extend a flexible hose(4) with an electric wire. The female connector is installed in one end of an extension hose formed as the same as the flexible hose and fixes the adapter. The male connector is installed in the other end of the extension hose and is fixed to a connector formed in a wall. The male connector comprises earth connection pieces exposed to the outside. The female connector comprises earth connection terminals with tension.
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