| 摘要 |
<p>PROBLEM TO BE SOLVED: To configure a missile actuation switch actuated using a temperature increase resulting from aerodynamic heating to automatically change a heat transfer quantity for a molten 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; an actuation shaft 13; and a fixing member 12 fixing the actuation shaft 13 to an interior of the tip end member 11 and formed out of low-melting-point alloy. The tip end member 11 is constituted by a main body portion 15 and a cover portion 16. A deformation portion 17 is provided on a tip end of the main body portion 15 such that the deformation portion 17 deforms at a predetermined temperature T higher than a melting point of the fixing member 12 to press forward the cover portion 16 so as to form a cavity between the cover portion 16 and the main body portion 15. The deformation portion 17 is configured so that, if a temperature of the deformation portion 17 reaches the above temperature T by aerodynamic heating, the temperature of the deformation portion 17 reaches the temperature T before the temperature of the fixing member 12 reaches the melting point.</p> |
