| 摘要 |
PROBLEM TO BE SOLVED: To prevent cracks or damages near the engaging part and to prevent the insertion body from playing inside a buckle main body at the time of insertion by reinforcing the vicinity of the engaging part of the insertion body. SOLUTION: The buckle main body 1 is formed of a flat cylindrical body, an insertion port 6 is provided on one end and a belt attaching part 7 is provided on the other end. An arcuate opening part 9 is provided on both side walls 5, a part 10 to be engaged is formed on the side of the insertion port 6 and a recessed groove part 13 whose cross section is recessed is provided on the inner surface of the side wall 5 near the part 10 to be engaged. In the meantime, for the insertion body 2, a base rod 19 disposed to a side frame 20 is provided with a flexible operation rod 25 on both sides and the operation rod 25 is provided with a leg part 27 in a thin width shape on a base part, an expanded head part 26 fittable to the opening part 9 on a tip and the engaging part 29 on the boundary of the expanded head part 26 and the leg part 27. Reinforcing is performed by forming a reinforcing line part 28 whose cross section is projected on the outer surface of the leg part 27 near the engaging part 29. The reinforcing line part 28 is formed so as to be fitted to the recessed groove part 13 of the side wall 5 and captured at the time of insertion and the play of this buckle is prevented. |
