| 摘要 |
The present invention concerns a male element of mushroom shape for a self-fastening closure, particularly of the hook and loop type, comprising a cylindrical rod ( 2 ) having a longitudinal axis and a cross-section, a flange ( 5 ) projecting laterally from the rod ( 2 ) and extending substantially all around the rod, characterised in that the rod has a constant cross-section or one that decreases strictly from the bottom of the rod to its apex, and there is formed in the rod an auxiliary cavity ( 6 ) of which the largest section transversely of the rod axis is of a smaller dimension than that of the cross-section of the rod ( 2 ).
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