| 主权项 |
1. A slide fastener comprising:
a first fastener stringer that comprises a first element row and a first fastener tape, the first element row including a plurality of first elements and one or more second elements, and the first element row being disposed at the opposed side edge of the first fastener tape; a second fastener stringer that comprises a second element row and a second fastener tape, the second element row including one or more second elements, and the second element row being disposed at the opposed side edge of the second fastener tape; and a slider that is slidable along the first and second element rows of the first and second fastener stringers, wherein each of the first element and the second element includes a head coupled to a base via a neck, the base including an opposite surface that is located at the opposite side of the head, and the opposite surface of the second element is positioned farther from the opposed side edge than the opposite surface of the first element in the first fastener stringer or the second fastener stringer, and at least two engaged second elements of the first and second element rows constitute a lock unit that is for locking the slider. |
