Patent ID: 7458831

Claim:
An outlet comprising: an outlet main body having plugholes for engaging plug-in terminals of a plug; a rotor/cover, having insertion holes through which the plug-in terminals can be inserted; wherein the rotor/cover is pivotal with respect to the outlet main body between a non-usage position in which the plugholes are covered by the rotor/cover and a usage-position in which the insertion holes are aligned with the corresponding plugholes; a torsion spring that is interposed between the outlet main body and the rotor/cover and urges the rotor/cover to the non-usage position; a supporting axle portion provided between the outlet main body and the rotor/cover that is located inside of a coil portion of the torsion spring; wherein pivoting the rotor/cover with respect to the outlet main body engages torsional arms of the torsion spring with the outlet main body and the rotor/cover; wherein each of the torsional arms extends away from the torsion spring in a direction parallel to a central axis of the torsion spring; and wherein each of the torsional arms engages with a corresponding engagement portion of the outlet main body and the rotor/cover; wherein each engagement portion comprises an orifice able to accommodate a corresponding terminal portion; and wherein each engagement portion is a slot formed in the shape of an arc centered about the central axis of the torsion spring in an assembled state.