| 摘要 |
An air sealing body capable of intensifying air-tightness comprises two outer membranes (2a,2b) and two inner membranes (1a,1b). At least a heat resistant section (1c) is formed between the inner membranes by means of coated heat resistant material. Four sides of the two outer membranes are thermally sealed and an air filling passage (9), an air inlet (2e) and an air column (11) are thermally formed to across the heat resistant section. The heat resistant section is further thermally sealed with the thermal seal spots (2c). Hence, a structure with the air inlet being forcedly opened during air being filled is constituted and a curved surface zone (11a) is formed at the air column near the air filling side. Multiple wrinkles are produced between the inner membranes. A column zone (11b) is disposed at a side of the curved surface zone. At least a ring-shaped thermal seal line (3f) is attached to at least the inner membranes and disposed next to the column surface zone and outside the curved surface zone. At least a second inlet (2f) is thermally formed between the inner membranes and disposed at the intersection of the heat resistant section and the ring-shaped thermal seal line to communicate both sides of the thermal seal line. The inner membranes is attached to one of the outer membranes after the air being filled with the wrinkles being interrupted by the thermal seal line of the second inlet to perform blocking the air effectively.
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