| 摘要 |
PURPOSE: An adaptor is provided to electrically connect to a main plug or a main outlet having various earthing structures. CONSTITUTION: An adaptor includes a case(110) having at least two insertion holes and in/out holes, a connector connected to a main plug electrode(150) inserted through each of the insertion holes, and an earthing structure(170) having an earthing piece. The adaptor further includes a support for supporting the earthing structure such that the earthing piece goes into the in/out hole and out of the in/out hole, and a means for fixing the earthing piece being projected from the in/out hole or canceling fixing of the earthing piece. The fixing/canceling means includes a protrusion formed at the earthing structure, a protrusion fixing stopper for fixing the earthing piece being projected from the in/out hole while the protrusion is stopped by the stopper, and a cut portion for forming an entrance path of the protrusion.
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