Abstract
In the previous study, a belt buckle of the self-locking type belt was investigated experimentally and theoretically as well. According to the theory of belt buckle, once a belt is locked by the buckle, the belt never slips as far as belt tension is being applied. There are many people who experienced natural loosening of shoestring while walking. Using a hard locking property of belt of the buckle, we applied a small belt buckle to lash shoes. Loosening of the shoe was evaluated by measuring the contact pressure of the shoe while walking. In order to compare the lashing property of the buckle with the conventional method, magic tape and shoestring were tested. Experiments were carried out with a constant walking speed of 3.5 km/h on a treadmill. The buckle proved to be the smallest difference in pressure in walking condition among them.
