| 摘要 |
<p>PROBLEM TO BE SOLVED: To configure a missile actuation switch actuated using a temperature increase due to aerodynamic heating to automatically change a heat transfer quantity for a fixed member so as to provide an equal actuation distance whether outdoor temperature conditions differ.SOLUTION: An actuation switch 10 comprises: a tip end member 11 constituting a tip end portion of a missile; an actuation shaft 13 extending axially within the tip end member 11; and a fixing member 12 fixing the actuation shaft 13 to the tip end member 11 and formed out of low-melting-point alloy. In this actuation switch 10, a tip end-side alloy portion 15 located closer to a tip end side relative to the fixing member 12 of the tip end member 11 and formed out of low melting point alloy higher in melting point than the fixing member 12 is provided. Furthermore, if a temperature of the tip end-side alloy portion 15 reaches a melting point, the tip end-side alloy portion 15 reaches the melting point earlier than the fixing member 12.</p> |
