| 摘要 |
The present invention provides a slide fastener in which a normal engaging state of engaging elements can be maintained, even if right and left tensile loads are applied to the engaged elements having an engaging male portion and an engaging female portion which can be engaged with and disengaged from each other in upward and downward directions. The engaging element having the engaging male portion has a tape mounting portion at one end thereof an arc-shaped fitting face at an inner face of the tape mounting portion, and a projecting engaging tongue at an upper portion of the element, at a lower face of which a column is formed to have an engaging head is formed at a tip end thereof. A recessed groove is defined in the head, thereby providing resilience. The engaging element having the engaging female portion has a tape mounting portion at an end thereof, a vertical fitting face at an inner face of the tape mounting portion, a projecting engaging tongue at a lower portion of the element. An engaging hole is defined in the engaging portion. A lock portion is formed at a lower face of the engaging hole for engagement with the engaging head. The engaging head of the engaging male portion and the lock portion of the engaging female portion are engaged with each other.
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