Arrangement for supporting shell into breech-loading weapon barrel
The invention relates to an arrangement for supporting a shell into the barrel of a breech-loading weapon. The arrangement comprises a support piece ( 6 ) that is provided with an edge flange ( 7 ) and is to be fastened to a tail of the shell. The support piece further comprises a firing mechanism for firing the actual primer of the shell. The arrangement further comprises a connecting means ( 8 ) between the support piece ( 6 ) and the shell tail ( 4 ), the connecting means being arranged to fasten to the shell and to the support piece ( 6 ) and thus to fasten the support piece with a mechanical connection to the shell tail ( 4 ). The connecting means ( 8 ) comprises at least one shank part ( 9 ) having a first end and a second end, the first end of the shank part being arranged to fasten to the connecting means ( 8 ) and the second end to the shell tail ( 4 ). The fastening between the first end of the shank part and the shell is arranged to yield in a firing situation, thus enabling the detachment of the shell from the support piece. The second end of the shank part ( 9 ) is arranged to fasten to the shell tail tube ( 3 ) and to bend or turn away from the shell tail tube ( 3 ) in a firing situation.
1. An arrangement for supporting a shell into the barrel of a breech-loading mortar weapon, the arrangement comprising:
a support piece that is provided with an edge flange and is configured to be fastened to a tail of the shell, the support piece further comprising a firing mechanism for firing the actual primer of the shell,
a connector between the support piece and the shell tail, the connector configured to be fastened to the shell and to the support piece and thus to fasten the support piece with a mechanical connection to the shell tail,
at least one shank part having a first end and a second end, the first end of the shank part being configured to be fastened to the connector and the second end to the shell tail, the fastening between the first end of the shank part and the shell being arranged to yield in a firing situation, thus enabling the detachment of the shell from the support piece,
whereby the second end of the shank part is configured to be fastened to a shell tail tube and configured to bend or turn away from the shell tail tube in a firing situation, the second end of the shank part being fastened to a pressure discharge hole in the tail tube, and the second end being arranged to detach from the pressure discharge hole by the action of pressure and/or gas flow.
2. An arrangement as claimed in claim 1 , wherein the arrangement comprises a separate draw strip part comprising two shank parts and a draw nut part, the draw nut part being fastened to the support piece, and the second ends of the shank parts of the draw strip part configured to be fastened to the shell, the draw strip part being functionally connected to the draw nut part.
3. An arrangement as claimed in claim 2 , wherein the draw strip part is provided as an integral part whose shank parts are configured to be fastened to opposite sides of the shell tail tube.
4. An arrangement as claimed in claim 1 , the shank part is provided as an integral part of the connector.
5. An arrangement as claimed in claim 1 , wherein in connection with the first end of the shank part is arranged a pressure plate, which is arranged to direct a force effect to the first end of the shank part for turning the shank part by the action of the pressure released in a firing situation, the force effect being arranged to turn the shank part in a manner opening the fastening between the second end of the shank part and the shell.
6. An arrangement as claimed in claim 5 , wherein the pressure plate is arranged as a substantially round plate inside the support piece.
7. An arrangement as claimed in claim 5 , wherein the pressure plate is arranged as an integral part of the shank part.
8. An arrangement as claimed in claim 5 , wherein the pressure plate is arranged as a separate part with respect to the shank part.
9. An arrangement as claimed in claim 3 , wherein a pop rivet is fastened to the second ends of the shank parts of the draw strip part, the pop rivet being configured to fasten the shank parts to the shell, and the draw strip part is arranged to break in a firing situation.
10. An arrangement as claimed in claim 9 , wherein the draw strip part is arranged to break in a firing situation in an area of the draw strip part on the front side of the pop rivet.