| 摘要 |
PURPOSE:To easily and quickly replace a pull tab satisfying the desire of a user, by a method wherein the subject pull tab is composed of a knob part and a ring-shaped part fitted to a pull tab-fitting part, and a weak part is formed on the ring-shaped part for fitting. CONSTITUTION:A tentative pull tab 11 is flat and thin and is made of plastic or metal. It is composed of both a knob part 6 held in a slide being moved and a ring-shaped part 8 fitted to a pull tab-fitting part of the slide. A notched part 10 in the form of triangle is formed on the ring-shaped part 8 and makes the ring-shaped part 8 weak. When the knob part 6 is held and twisted, the tentative pull tab 11 can be removed by being pulled out from the notched part 10 of the ring-shaped part 8 since its place is easily cut. It can be therefore handled easily and quickly to remove the tentative pull tab 11. The tentative pull tab 11 removed is thrown away because of being disused, and after that, a new pull tab satisfying the desire of a user is fitted. |
