| 摘要 |
In a cord stopper, a spherical socket has a central plug-insertion hole, a head-receiving recess at the upper end of the hole, and a pair of diametrically opposed locking tongues projecting centrally from the respective edges of the recess. Also the socket has a first cord-threading hole extending perpendicularly to the plug-insertion hole. The plug-insertion hole has a gentle slope extending downwardly centrally from the first-threading hole and a steep slope downwardly contiguous to the gentle slope. A plug has a pair of resilient legs projecting downwardly from a head and having in and through their bases a second cord-threading hole. Each leg has on its lower outside surface a slope, and on its outside surface a protuberance having a central cutout and terminating a guiding end. In use, the plug is pushed into the plug-insertion hole and then a cord is threaded through the first and second cord-threading holes, whereupon if the pressure is released, the plug is urged upwardly under the resilience of the legs to retain the cord. |
