PURPOSE: To make shoes suitable to any condition of road surface or floor surface, and to walk or run comfortably and safely constantly by selecting one or plural designs from various uneven designs as desired, combining them, and arranging them adequately.
CONSTITUTION: To the main sole, various uneven designs are arranged relatively closely, except the part responding to the arch of the foot. Each of cushion bodies 2 has an air hole 3 at the center, and the diameter of the bottom end of the air hole 3 is extended being formed into an air stay 4. And around the air hole 3, a cutting 5 is formed, and the inner side of the cutting 5 is projected a little forming a projection 6. As a result, the projection 6 escapes to the space of the air hole 3 and the air stay 4 while being compressed, in a walking condition, because there is the cutting 5 around the projection 6. Since the air in the air stay 4 is pushed out following that, a cushion function (a spring effect) can be obtained. When the cushion bodies 2 are separated from the ground surface, the air holes 3 and the air stays 4 are made into a negative pressure in an instant, sucking force is generated, and a slip preventive effect can be obtained as a whole.
JPS3821123Y1 | ||||
JPS5769802A | 1982-04-28 | |||
JPS51150442A | 1976-12-24 | |||
JP54145339B | ||||
JPS61128905A | 1986-06-17 | |||
JPS5485848A | 1979-07-07 | |||
JPS53146845A | 1978-12-21 |
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