| 摘要 |
<p>PURPOSE: To prevent the damaging of an optical fiber at the time of firing by disposing an approximately elastic plug between the front end of the projectile in a firing device and the mouth part of the firing device and fixing this plug axially along the inner flank of the tubular firing device during firing of the projectile. CONSTITUTION: The elastic plug 40 is disposed between the front end 14 of the projectile 10 in the firing device 16 and the mouth part 28 of the firing device 16 and is packed into the firing device 16 or fixed therein. The plug 40 fixes the length 32 of the fiber 22 in the axial line direction along the inner flank of the firing device 16 during the projectile 10 is fired. The plug 40 has particularly the plural holes or openings 42 in the axial line direction and these openings 42 release the gaseous pressure formed behind the plug during firing to prevent the release of the plug 40 from the firing device 16 early in timing. The optical fiber is fixed in the axial direction along the inner flank of the tubular firing device by this plug 40 during the firing of the projectile. As a result, the optical fiber guiding type projectile system which does not damage the optical fiber is obtd.</p> |
