| 摘要 |
<p>A double-sided engaging element (12,112) for a slide fastener (10), comprising a central elevated portion (74) elevated from a coupling base surface (70); and a pair of right and left projecting portions (72,172) formed to project from a body portion (78) toward the central elevated portion (74) and to be elevated from the coupling base surface (70), wherein a central elevated portion (74) of a mating element is detachably coupled in a dent surrounded by the central elevated portion (74), the right and left projecting portions (72,172) and a stepped surface (82). A dimension (T0) between inside elevation startup edges of the right and left projecting portions (72,172) is set smaller than a dimension (R0) between right and left elevation startup edges of the central elevated portion (74), and a first missing portion (88,188) is formed on an outside corner of an end portion of each of the right and left projecting portions (72,172) opposing the central elevated portion (74).</p> |
