WAIST BELT, EXPANDED BY AIR INJECTION, ESPECIALLY FOR PREVENTING ROLLING EFFECT OF UPPER END SIDE BY AIR INJECTION AND FORM DEFORMATION BY AIR EXPANSION

摘要

PURPOSE: A waist belt for preventing the form deformation by an air expansion, is provided to prevent the rolling effect of an upper end side by an air injection by forming a cut portion so as to secure a space in a portion of the upper end side of the present waist belt, which portion is expended when air is injected. CONSTITUTION: The waist belt, expended by an air injection, includes: a cut portion(1), formed so that a space is secured in a portion of the upper end side when air is injected; and a separate edge end(2), configured in such a manner that it is confronted with the upper ends of the cut portion(1) and fixed thereto so as to prevent the form deformation by an air expansion. The upper ends of the cut portion(1) is configured in such a manner that they collect together.