Abstract: A buckle is provided with a female member 5 having first and second engaging portions 13 and 14, and a male member 6 having first and second engagement pieces 20 and 21. By inserting the male member 6 into the female member 5, the first engaging portion 13 engages with the first engaging piece 20, and the second engaging portion 14 engages with the second engaging piece 21, thereby, female member 5 and male member 6 are connected. The male member 5 and female member 6 are not separated, unless engagement between first engaging piece 20 and first engaging portion 13, as well as engagement between second engaging piece 21 and second engaging portion 14, are released by means of both a first operating portion 11 and a second operating portion 12 which are separately provided on the front and rear of female member 5 being pressed inwardly.

Abstract: A buckle is provided with a female member 5 having first and second engaging portions 13 and 14, and a male member 6 having first and second engagement pieces 20 and 21. By inserting the male member 6 into the female member 5, the first engaging portion 13 engages with the first engaging piece 20, and the second engaging portion 14 engages with the second engaging piece 21, thereby, female member 5 and male member 6 are connected. The male member 5 and female member 6 are not separated, unless engagement between first engaging piece 20 and first engaging portion 13, as well as engagement between second engaging piece 21 and second engaging portion 14, are released by means of both a first operating portion 11 and a second operating portion 12 which are separately provided on the front and rear of female member 5 being pressed inwardly.