| 摘要 |
A slide fastener slider has an arch-shaped lug projecting from the top surface of an upper wing and terminating in a rear free end spaced from the top surface of the upper wing by a predetermined gap. A slide is slidably mounted in the upper wing and has a closure projection. The slide is movable between an open position in which the closure projection is spaced from the free end of the lug to open the gap for allowing the pintle of a pull tab to pass therethrough, and a closed position in which the closure projection is disposed adjacent to the free end of the lug to close the gap for preventing the pintle of the pull tab from passing therethrough. The slide is normally urged to its closed position by a spring mounted in the upper wing. |
