| 摘要 |
There is described a sliding closure intended for use with a bag or the like, the closure comprising two track parts (2,3,60,61) extending along opposite sides of an opening in the bag (1), and fixed thereto, and a closure element (20) composed of a plurality of articulated segments (21) which engage enlarged rail portions (2a, 3a) of the tracks to hold the tracks together. The closure is described in relation to postal envelopes and mailbags, and in relation to the various alternative embodiments there are described guides (5, 6, 7, 30, 31, 53, 53a) for the sliding closure element, end stop assemblies (10, 53), and a sealing arrangement is envisaged. |
