| 摘要 |
A collapsible diaphragm (14) to form an outlet valve means (14) in a weapon simulator of the king comprising a combustion chamber (28), means (21, 31) for admitting fuel gas to the combustion chamber, ignition means (23) for igniting fuel gas in the combustion chamber to cause an explosion, an exhaust port (29) in the combustion chamber, outlet valve means (14) for closing the exhaust port and arranged to open rapidly and with audible results in response to explosive pressure rise within the combustion chamber and breechblock means (8, 11) for holding the outlet valve means (14) in position to close the exhaust port (29), characterised in that the diaphragm (14) comprises a disc (16, 22, 30, 34) of dimensionally-stable sheet material having a peripheral portion adapted to be held by the breechblock means.
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