Patent ID: 7788773

Claim:
A double-sided engaging element for a slide fastener, comprising: a thin sheet coupling head main body having coupling base surfaces on both front and rear surfaces thereof; a thick body portion extending in one direction from each of the coupling base surfaces through a stepped surface; a pair of right and left leg portions extending from the body portion; a central elevated portion which is elevated from a central portion on a front end side of each of the coupling base surfaces; and a pair of right and left projecting portions which are elevated from each of the coupling base surfaces while projecting from the body portion toward each central elevated portion, in which a central elevated portion of a mating element is detachably coupled in a dent surrounded by the central elevated portion, the right and left projecting portions and the stepped surface between the right and left projecting portions, wherein a dimension (TO) between inside elevation startup edges of each of the right and left projecting portions is set smaller than a dimension (RO) between right and left elevation startup edges of the central elevated portion, and an outside corner of an end portion of each of the right and left projecting portions opposing the central elevated portion has a first missing portion so that an outside edge of each of the right and left projecting portion tapers at a greater rate than a respective inside edge of the each of the right and left projecting portions.