Support member for supporting shell, and method
The invention relates to a support member for supporting a shell into the barrel of a breech-loading weapon, and a method. The support member ( 6 ) comprises means for fastening a support element ( 8 ) to at least one fin ( 5 ) belonging to the tail end ( 4 ) of a shell ( 1 ). The means comprise at least one fastening piece ( 10 ), which comprises: at least one first fastening surface ( 14 a ), which may be arranged substantially parallel with a side of the fin ( 5 ), and which fastening piece ( 10 ) may be supported to the support element ( 8 ); at least one second fastening surface ( 14 b ), which second fastening surface ( 14 b) is movably arranged so that the second fastening surface ( 14 b ) is movable in relation to the first fastening surface ( 14 a ) in a direction transverse to the longitudinal axis (L) of the shell ( 1 ); and means for pressing the fastening surfaces ( 14 a, 14 b ) against the sides of the fin ( 5 ) arranged between them so as to provide friction locking between the fastening piece ( 10 ) and the fin ( 5 ).
1. A support member for supporting a shell into the barrel of a breech-loading weapon, the support member comprising a support element with a rim flange, and the support member further comprising means for fastening the support element to at least one fin belonging to the tail end of the shell, the means for fastening the support element include
at least one fastening piece, the fastening piece comprising:
at least one first fastening surface, which first fastening surface may be arranged substantially parallel with a side of the fin;
at least one second fastening surface, which second fastening surface is movably arranged so that the second fastening surface is movable in relation to the first fastening surface in a direction transverse to the longitudinal axis of the shell; and
means for pressing the fastening surfaces against the sides of the fin arranged between them so as to provide friction locking between the fastening piece and the fin, wherein
the means for pressing the fastening surfaces comprises a first arm provided with said first fastening surface and a first spring means, said first spring means being arranged to cause the force that presses the fin arranged to said fastening piece against the second fastening surface, said first spring means being arranged to act independently and separately in respect of the spring means of the fastening pieces fastened to the other fins of the shell,
the support element comprises an end and an annular outer casing, and the annular outer casing has an annular shape and extends from the end to a side of the end where the fastening pieces lie, and
the annular outer casing surrounds the fastening pieces.
2. The support member according to claim 1 , wherein the fastening piece comprises a second arm provided with a second fastening surface and that the second arm is provided with a second spring means arranged to press the fin of the shell arranged to the fastening piece against the first fastening surface.
3. A method for fastening a support member to a shell, the method comprising:
fastening to the tail end of the shell a support member that comprises a support element furnished with a rim flange, locking the support member to several fins belonging to the tail end of the shell using in the locking several fastening pieces, the fastening piece comprising:
at least one first fastening surface, which first fastening surface is arranged substantially parallel with a side of the fin;
at least one second fastening surface, which second fastening surface is movably arranged so that the second fastening surface is movable in relation to the first fastening surface in a direction transverse to the longitudinal axis of the shell;
pressing the fastening surfaces against the sides of a fin arranged between them so as to provide friction locking between the fastening piece and the fin; and
causing the force pressing the first fastening surface and the fin towards the second fastening surface by said first spring means, said first spring means as well as said first fastening surface arranged in a first arm, said first spring means being arranged to act independently and separately in respect of the spring means of the fastening pieces fastened to the other fins of the shell,
wherein the support element comprises an end and an annular outer casing, and the annular outer casing has a annular shape and extends from the end to a side of the end where the fastening pieces lie, and
wherein the annular outer casing surrounds the fastening pieces.