| 摘要 |
PROBLEM TO BE SOLVED: To prevent the leakage of the combustion gas of a gas generating agent perfectly, by providing a lid body having a hole, where a synthetic resin ball can't pass and a flame can pass even when the synthetic resin ball is pressed, at the outlet of the flame from the synthetic resin ball chamber. SOLUTION: A synthetic resin ball 1 is set in the movable condition, in a synthetic resin ball chamber 3 positioning at the middle part between a flame conduit 2 and a gas generating agent chamber 9. Holes are formed at the upper side and the lower side of the synthetic resin ball chamber 3, and the diameter of the hole at the flame conduit 2 side, that is the flame inlet 4, is smaller than that of the synthetic resin ball 1. To a lid 6 provided between the another gas generating agent chamber 9, a hole 5 where the synthetic resin ball 1 cannot pass, which is not sealed even when the synthetic resin ball 1 is pressed, is provided. Inside the gas generating agent chamber 9, a well-known gas generating agent 10 such as a smokless powder and a composite propellant is housed. By such a constitution, a leakage of the combustion gas of the gas generating agent can be prevented perfectly. |
