| 摘要 |
A method of and apparatus for detecting ends of successive fly strips connected end to end by a slide fastener chain. The successive fly strips, with their first flaps superimposed on a tape of one fastener stringer and with their second flaps superimposed on the other fastener stringer, are fed along a first straight path. The successive second flaps are deflected or moved aside, as they pass a wedge-shaped plow on the first straight path, to such an extent that the individual second flap lies at a right angle with respect to the general plane of the fastener stringers. Then, the direction of movement of the successive fly strips is shifted at a turning point to a second straight path inclined with respect to the first straight path so as to provide temporarily a relatively large triangular space between an adjacent pair of the deflected second flaps when the same confronting ends arrive at the turning point. Finally, a detector senses the presence of the triangular space, which indicates the arrival of confronting ends of an adjacent pair of the fly strips. |
