| 摘要 |
<p>The present invention allows easy insertion of a power cord into plug socket holes using a cycloid curve (or using an incline surface, among others), and allows easy insertion and unplugging of the power cord which is inserted by forming a plug socket in a stable parallelogram link structure, wherein a stable separation of the power cord is enabled by using a four-joint rotation tool forming a parallelogram, thereby facilitating a constant parallel movement of two or more points inside a link tool. The convenience of the present function is maximized in a space that is narrow so that the plug socket holes are difficult to see with the eyes but into which the hand can fit. The present invention provides the advantages of easily finding and inserting into two holes of the plug socket, which is installed in a common area or in a narrow space, and of easily unplugging the cord by lifting a lever with little force.</p> |
