Arrangement for supporting mortar shell into breech-loading weapon barrel
An arrangement for supporting a mortar shell into a breech-loading weapon barrel ( 2 ). The arrangement comprises a support piece ( 6 ) provided with an edge flange ( 7 ) and to be attached to the tail of the mortar shell ( 1 ), whereby the arrangement further comprises a connecting piece ( 8 ) between the support piece and the mortar shell tail, which connecting piece is arranged to be attached to the mortar shell and the support piece and thus to attach the support piece with a mechanical joint to the mortar shell tail. In connection with the connecting piece ( 8 ), there is a point which is arranged to yield in a firing situation and thus to allow the mortar shell ( 1 ) to be detached from the support piece ( 6 ); and a firing mechanism ( 17 ) for firing the actual primer ( 10 ) of the mortar shell. The mechanical joint between the connecting piece ( 8 ) and the support piece ( 6 ) has been formed by means of cotter attachment ( 14 ).
1. An arrangement for supporting a mortar shell into a breech-loading mortar weapon barrel, the arrangement comprising:
a support piece provided with an edge flange and to be attached to the tail of the mortar shell, the support piece being arranged to keep the shell in place in the barrel until it is fired;
a connecting piece between the support piece and the mortar shell tail, the connecting piece being arranged to be attached to the mortar shell and the support piece and thus to attach the support piece with a mechanical joint to the mortar shell tail; and
a firing mechanism for firing the actual primer of the mortar shell,
wherein the mechanical joint between the connecting piece and the support is formed by means of cotter attachment, and
wherein a point on at least one of the connecting piece and the cotter attachment is configured to yield when the mortar shell is fired, to instantly disengage the mechanical joint and to allow the mortar shell to be instantly detached from the support piece at the firing moment.
2. An arrangement according to claim 1 , wherein the cotter attachment is formed by means of at least one attachment cotter.
3. An arrangement according to claim 2 , wherein the cotter attachment is formed by means of several attachment cotters which are arranged at a distance from each other in the direction of the periphery of the support piece and the connecting piece.
4. An arrangement according to claim 1 , wherein the cotter joint is dimensioned in such a way that it forms a point which yields in a firing situation.
5. An arrangement according to claim 1 , wherein the connecting piece comprises a flange part which is, by means of an attachment piece to be arranged in the tail of the mortar shell, arranged to attach the connecting piece to the mortar shell, the flange part being dimensioned in such a way that it forms a point which yields in a firing situation.
6. An arrangement according to claim 1 , wherein the connecting piece is provided with a weakening point dimensioned in such a way that it forms a point which yields in a firing situation.
7. An arrangement according to claim 6 , wherein the weakening part is a groove extending around the connecting piece in the direction of the periphery.
8. An arrangement according to claim 1 , wherein the connecting piece is made of a material which yields in a firing situation.
9. An arrangement according to claim 1 , wherein the connecting piece is arranged to be attached to the attachment piece arranged in the tail of the mortar shell by means of a threaded joint, the threaded joint being dimensioned in such a way that the threads yield in a firing situation.