| 摘要 |
PURPOSE: A key chain is provided to be easily inserted and hanged and to prevent the opening due to the malfunction of a key chain. CONSTITUTION: A key chain comprises a ring which has a random region cut to draw out a key and has a protrusion at one cut end; an arc-shaped first space (210) which accommodates one end and the other end, and has a short protrusion to prevent the separation of the protrusion; and a second space (230) which is vertically connected to the first space; a holder housing (200) which has a long hole (240) vertically cut and penetrating through the holder housing; a key block (300) which draws in and out the cut ring through the first space; and a coil spring (500) which is located in the upper side of the second space and pushes the key block toward the first space. |
