| 摘要 |
PURPOSE: A device for fastening a watch chain is provided to automatically fasten the watch chain using the magnetic force of electromagnets. CONSTITUTION: A device for fastening a watch chain includes first and second bands (20, 30) which are coupled to each other by the magnetic force of electromagnets. The electromagnets include a fixing groove formed on the surface of the first band, an electromagnet case (440) which is provided on the surface of the second band and is selectively inserted into the fixing groove, a magnetization board (460) which is provided to the inside of the electromagnet case and generates a magnetic force when power is applied, a rod (480) which is provided to the inside of the electromagnet case and is hung on the fixing groove, and a return spring (470) which is provided between the magnetization board and the rod and moves the rod forwards. |
