公开(公告)号：US5259319A

公开(公告)日：1993-11-09

申请号：US855229

申请日：1992-03-20

申请人： Richard Dravecky ,  Joseph Dravecky ,  Frank G. Dravecky, Jr. ,  John G. Nichols

发明人： Richard Dravecky ,  Joseph Dravecky ,  Frank G. Dravecky, Jr. ,  John G. Nichols

IPC分类号： F42B5/073 ,  F42B8/02 ,  F42B14/06 ,  F42B14/08

CPC分类号： F42B14/02 ,  F42B14/06 ,  F42B14/08 ,  F42B5/073 ,  F42B8/02 ,  F42B8/10

摘要： A reusable "training" or "practice" round has a reusable hollow casing and a reusable hollow projectile that "snap together" and are releasably retained in assembled relationship by utilizing a resilient connecting member such as a groove-carried O-ring that is interposed between juxtaposed surfaces of concentrically interfitting portions of the casing and the projectile. The assembled practice round is inserted into the chamber end region of the barrel of a firearm and, when the round is fired, the casing is retained in the chamber as the projectile is caused to move along the barrel of the firearm and to discharge along a trajectory that closely simulates the path of flight of a "live" round. Propellant is provided by a reloadable or disposable blank-type cartridge. The projectile and the casing have hollow interiors that communicate and cooperate to define a closed chamber into which the blank round is fired to explosively generate the force needed to rapidly disconnect the projectile from the casing and to launch the projectile through the barrel of the firearm. A snap-together type of releasable connection is established between the casing and the projectile 1) by providing the casing and the projectile with coaxially extending surfaces that are brought into juxtaposed relationship during assembly of the casing and the projectile, and 2) by positioning a resilient connecting member to be tightly clamped between the juxtaposed surfaces just as assembly of the round is completed.

摘要翻译： 可重复使用的“训练”或“练习”轮具有可重复使用的中空壳体和可重复使用的中空射弹，其“卡扣在一起”并且通过利用诸如插入槽槽的O形环的弹性连接构件可释放地保持组装关系 在壳体和射弹的同心相互配合的部分的并列表面之间。 组装的练习圆被插入到枪械的枪管的腔室端部区域中，并且当圆形被发射时，随着射弹沿着枪支的枪管移动，壳体被保持在腔室中并沿着枪管 紧密模拟“活”轮飞行路线的轨迹。 推进剂由可重新加载的或一次性的空白型墨盒提供。 射弹和套管具有中空的内部空间，其通信和配合以限定空白圆圈被发射到其中以爆炸地产生快速断开射弹与壳体所需的力并通过枪支的炮弹发射射弹。 通过在外壳和射弹之间提供壳体和射弹的同轴延伸表面，在套管和射弹之间形成并置关系，并且2）通过定位 弹性连接构件紧紧地夹在并置的表面之间，就像圆的组装完成一样。