| 摘要 |
<p>A buckle device capable of assuring a smooth unlocking for long period at a low cost, wherein a button slope (66) is formed in a curved surface opening toward a button (50) side in an unlocking direction and, therefore, a frictional resistance can be reduced less than before since the increased amount of the pressing force of the button slope (66) against a contacted surface (86A) as compared with the moved amount of the button (50) immediately after the start of the pressing is small, whereby the wear of the contacted surface (86A) can be reduced or prevented and, for example, even if the frictional resistance of the button slope (66) with the contacted surface (86A) is reduced by applying a coating onto the contacted surface (86A) to smoothly perform unlocking, the degree of dependence of a reduction in frictional resistance on the coating is reduced and the service life of the coating can be prolonged, and thus the unlocking can be performed smoothly over a long period.</p> |
