| 摘要 |
PROBLEM TO BE SOLVED: To reduce the manufacture cost of buckles and prevent them from unlocking accidentally even when their tongue plate in its locked state is given pressure. SOLUTION: A lock spring 54 secured to a button 28 is mounted with an intermediate arm 60 whose wall 68 making a leg 66 is opposed to the tip of a fish element 26 of an injector 22. In its locked state, the opposed wall 68 forms a prescribed clearance 72 with a projection 70 on the fish element 26, so that further movement of a tongue plate 20 in the direction of an arrow A no longer forces the opposed wall 68 in this direction and the button 28 as well in this direction or unlocking direction. A latch 48 is thus positively prevented from moving in its disengaging direction counter to an arrow B, and an associated projection 38 can be reduced in size. A buckle 10 is resultantly reduced in total size and manufactured at smaller cost. |
