| 摘要 |
PCT No. PCT/SE93/00155 Sec. 371 Date Aug. 25, 1994 Sec. 102(e) Date Aug. 25, 1994 PCT Filed Feb. 24, 1993 PCT Pub. No. WO93/17294 PCT Pub. Date Sep. 2, 1993.A Mortar adapter intended to be received in the barrel of a mortar. The adapter includes a projectile firing tube and a breech region (2), wherein the projectile firing tube is intended to accommodate a practice projectile of smaller caliber than the caliber of the mortar barrel. The projectile is brought to a firing and locked state automatically as the projectile is inserted into the mortar adapter. There is provided a safety facility, which includes a breech block (7, 9) which is intended to be inserted into the adapter through the agency of a guide means (4, 5) which extends transversely to the longitudinal axis of the cylindrical breech (2) and when fully inserted forms the bottom of the breech. The measurements of the breech block in the insertion direction are such that at least one end (13, 14) of the breech block will touch the mantle line of the adapter (1) in the inserted position while the other end will lie within the adapter, so as to enable the adapter to be inserted freely in the mortar barrel (16) when the breech block ( 7, 9) is fully inserted. The breech block has a firing pin (15) which is so positioned that when the breech block (7, 9) is inserted, the firing pin (15) will lie centrally in register with the firing pin (22) of the mortar, so that the mortar firing pin is able to strike the firing pin (15), which in turn strikes the detonator of the practice projectile of smaller caliber inserted in the adapter. |
