| 摘要 |
Provided is a coupled balloon in which a plurality of balloons are coupled by a simple method such that the interiors thereof communicate with each other, the coupled balloon being configured such that a gas can be injected into both balloons simultaneously from a single injection inlet. A coupled balloon, comprising: a first balloon body (11) in which the inside comprises a heat seal layer, the outside is formed by overlapping films configured from gas barrier layers, a valve (13) for injecting a gas into one location on the peripheral edge thereof is interposed, and the peripheral edge other than the inner surface of the valve is thermally fused; and one or a plurality of second balloon bodies (12) in which the inside comprises a thermo-fusible resin layer, the outside is formed by overlapping films configured from gas barrier layers, and the peripheral edge thereof is thermally fused; through-holes (16, 17) via which the balloon bodies communicate with each other formed in the first balloon body and in the second balloon body; and a double-sided bonding tape (18) having a communication hole (19) by which the outward-surface-side peripheral edge portions of each of the through-holes are joined together, the communication hole being aligned with the through-holes. |
