| 摘要 |
PROBLEM TO BE SOLVED: To provide a gas releasing structure that has a simple structure, can reduce production cost, and prevent a fused material from flowing to the outside.SOLUTION: A gas releasing structure comprises: sliding members 10, 10a, 10b that receive the pressing force of an elastic body and have an upper side having an inverted trapezoidal cross section and a lower side having a rectangular shape, wherein a gap S1 is secured on an upper surface, gaps S2 and S3 that serve as an airflow path are secured respectively on both lateral sides, thereby forming inclined surfaces SF11 and SF12; and a sliding member receiving body 30 that receives the sliding body 10, 10a, 10b slidably in a direction R, wherein the gap S1 is secured on an upper surface part, inclined surfaces SF21 and SF22 are formed respectively on both inside lateral sides, and the receiving body is closed by moving the sliding members 10, 10a, 10b. While a fluid is in a gas, the fluid passes through gaps S1, S2, S3 as flow paths and is released to the outside through gas release openings 23. When the fluid has transitioned to a fused material, the sliding members 10, 10a, 10b are moved to seal the gas release openings 23 and to thereby prevent any further transit of the fused material. |
