| 摘要 |
A retractile-fixing structure for a scissors comprises an inner tube having recessions and an outer tube allowing the inner tube to slide thereinside and having a handle and a fixing hole. One end of the retractile-fixing structure has a connection member connected with a blade. A switch is arranged in the handle, and a rolling pin is arranged inside the fixing hole. The rolling pin rolls on the inner tube or snap-fits to one recession. A pull rod is arranged between the inner and outer tubes with one end connected to the switch and another end engaging with the rolling pin. When the switch opens, the pull rod is separated from the rolling pin and driven to compress a spring; the rolling pin leaves the recession and slides on the inner tube simultaneously. When the switch closes, the spring makes the pull rod engage with the rolling pin; the rolling pin snap-fits to the recession; the inner tube securely engages with the outer tubes. |
