| 摘要 |
PURPOSE: A vinyl valve having multiple outlets is provided to eliminate the trouble of injecting air into a number of filler openings by making the air pressure of every air chambers constant and injecting air into a single filler opening. CONSTITUTION: A number of outlets(1) are formed by heat-sealing two synthetic resin sheets by a die. The outlets are compressed by an external pressure to prevent a backward discharge. An air valve(5) is disposed at a single filler opening by heat sealing. A special unit(6) is printed inside the outlets(1) so that the outlets(1) are not blocked upon heat sealing the synthetic resin air buffering material.
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