| 摘要 |
<p>The present invention relates to an air pocket for a cushion comprising an expansion part (12) to be expanded according to a change in a volume of air with which the inside, and upper and lower parts of the outer circumferential surface of an air pocket (1) are filled, and an elastic member (3) inside. A through hole (13) is formed in the center of an upper surface (11a) to be opened and closed by a pad type valve (2). In the pad type valve (2), a protruding part (21) applied to the through hole (13) is protruding in the upper center of a pad (22) and a cut groove (23) or a through hole (24) is radially formed at the same time, and a bonding part (25) formed in an edge is attached and installed in a ceiling surface (11a′). Therefore, when load is applied or removed, the expansion part (12), the pad type valve (2), and the through hole (13) are organically operated to allow air to flow in and out. When load is applied, an air pocket (1) is compressed by operation of the expansion part (12) and the compression spring (3), and compression of inner air. When the load is removed, the air pocket is restored by organic operation of the expansion part (12) and the pad type valve (2). Therefore, the present invention has an effect of maximizing comfort in use by evenly and stably supporting weight when a user is sitting or lying as a plurality of air pockets are individually applied and have a cushion force.</p> |
