DE1578223C

DE1578223C - Case for shotgun shells

Info

Publication number: DE1578223C
Authority: DE
Inventors: Auf Nichtnennung Antrag
Original assignee: S.p.A. Giulio Fiocchi, Lecco (Italien)
Publication date: 1972-12-21

Description

V-förmigen Kerben 12 versehen, während der übrige Teil die gleichen Merkmale aufweist, wie die Ausführung nach F i g. 2.V-shaped notches 12 provided, while the remaining part has the same features as the execution according to FIG. 2.

Die Hülse nach der Erfindung besitzt gegenüber älteren Ausführungen erhebliche Vorteile. Man setzt die beschriebenen Bodenstücke 4 mit elastischer Deformation der Außenkante 10 der Seitenwand 9 der Schale 7 in die Hülse ein, womit eine außergewöhnliche dichte Anlage an der Wandung der Hülse 1 erzeugt wird. Dies verbessert das Verhalten der Patrone wesentlich insoweit, als dadurch eine vollkommene Gasdichtigkeit und infolgedessen die volle Beibehaltung der Hülsenabmessungen nach dem Abschuß und eine große Zuverlässigkeit beim Herausziehen der Hülse aus dem Gewehr gewährleistet wird. Der Dämpfungseffekt im Augenblick des Abschusses, der durch das Vorhandensein der Kerbe -11 oder der Kerben 12 gewährleistet ist, arbeitet mit diesen¹ Ergebnissen voll zusammen. Dieser Effekt hat auch einen positiven Einfluß auf die Wirksamkeit des Schießens, so daß die Patrone mit der Hülse nach der Erfindung eine Vollendung erreicht, die wesentlich oberhalb derjenigen normaler Hülsen liegt. Die allgemeinen Schwierigkeiten infolge, des Klemmens während des Herausziehens der Hülsen sind ebenfalls vermieden, so daß ein perfekter Betrieb bei jedem Gewehr und insbesondere bei automatischen Gewehreh gewährleistet ist. . .''The sleeve according to the invention has considerable advantages over older designs. The bottom pieces 4 described are inserted into the sleeve with elastic deformation of the outer edge 10 of the side wall 9 of the shell 7, which creates an extraordinarily tight contact with the wall of the sleeve 1. This improves the behavior of the cartridge significantly in that it ensures perfect gas-tightness and consequently full retention of the case dimensions after firing and great reliability when the case is withdrawn from the rifle. The damping effect at the moment of launch, which is ensured by the presence of the notch -11 or the notches 12, works fully together ^{with these 1 results.} This effect also has a positive influence on the effectiveness of the shooting, so that the cartridge with the case according to the invention achieves a degree of perfection which is substantially above that of normal cases. The general difficulties as a result of jamming during the withdrawal of the cases are also avoided, so that perfect operation is ensured with every rifle and particularly with automatic rifle rifles. . . ''

^Hierzu 1 Blatt Zeichnungen^ 1 sheet of drawings

Claims

ι 2 mentioned known embodiment is the filler body claims: although on the side facing the sleeve base with an axially parallel. Annular space provided, but

1. Case for shotgun cartridges, in which the propellant gases have no effect whatsoever on the sealing of the cylindrical case wall, especially since it should be filled with a non-charge-containing material and one for receiving the compressible material.
Ignition device pierced packing on- The task · the. Invention. Consists in the pointing shell that of a. Metal case around the case base with particularly simple means forms the case base enclosed, the shell being sealed against the firing gases without walls.

with the pierced filling body in one piece. This is achieved according to the invention by

is made of synthetic plastic material that bei.der mentioned sleeve for shot

characterized in that min. cartridges at least one

At least one over the entire circumference of the catch of the piece is provided and extending notch

The bottom piece (4) extending notch (11, 12) the shell from a delimited by the notch bottom

provided and the shell (7) from one of the 15 and from a tapered side wall with

Notch (11) delimited bottom (8) and is formed from a flexible edge, the

• the tapering side wall (9) with an after- diameter is larger at the edge than at the filling

generous edge (10) is formed, the through body. '.

knife on the edge (10) is larger than on the filling

body (5). . ..-....; ^a ? compared to the inner diameter of the sleeve

2. sleeve for shotgun cartridges according to claim 1, ren diameter strongly elastic perfectly sealing characterized in that a deep notch is placed against the inner wall of the sleeve, and moreover (11) V-shaped cross-section is provided. this creates a dampening effect when firing

3. A shot shell case according to claim 1, it being noted that the seal characterized in that two or more 25 when firing is further improved in that Superposed, deep notches (12) V-shaped - the shell edge reinforced by the gas pressure gen cross-section are provided. the inner wall of the sleeve comes to rest.

The invention is explained in detail below, for example with reference to the drawing

30 shows. . . _: . .. .... . ■;

Fig. 1 is an axial section of a shotgun cartridge case according to the invention,: '· ■

. Fig. 2 shows an axial section of an embodiment

The invention relates to a sleeve for the shelled pierced bottom. Shotgun shells, in which the cylindrical 35 pieces, ■

The case wall shows a propellant charge and FIG. 3 shows a structure modified from FIG for receiving the ignition device through-hole guide shape of the base piece. .

th filler body having the shell of a Me- The sleeve according to F i g. 1 consists in a known manner

Tallhülse forms the case base enclosed, whereby from a cylindrical case wall 1 made of cardboard or the shell with the pierced filling body in a plastic material, which is enclosed at one end by a metal piece made of synthetic plastic material sleeve 2, which is a short section. ^: ; .-: ' ^y!; - V "'-'" - - · ^ir of the sleeve comprises exterior and with the sleeve wall 1

In such known cartridge cases for shot, firmly connected by flanging or flanging shotguns is inside the cylindrical case that is. . ■ ..- ... '". ·" -

, Propellant charge and a pierced one 45. The metal sleeve 2 is perforated at 3 for inserting the projection for accommodating the primer primer,
having shell made of synthetic plastic material ■ The bottom piece 4 made of plastic material, as it is formed according to the area adjoining the bottom, Fig. 2 or 3; is inserted into the sleeve. The shell is made in one piece with the. /.;r- - '\] ^ vm \ / l ^: · χ :: ^ Χ' -) Λ / 'V

drilled fillings used as the bottom. 50 The bottom piece 4 made of plastic material according to FIG.

2 In this case, the filler body with a cylindrical outer consists of the filler body 5, which is in the middle part wall stick to the inner wall of the sleeve. is perforated and the: accommodation hole 6

....:.: ·: In another known shotshell, a 'forms for the ignition device,' and from the scriiale 7, pierced, cup-shaped, rigid base piece made of.-..-, formed by., A Bpdep 8 and a yerjun bronze or some other metal-like alloy. Sidewall 9 of the provided. This bottom piece is provided with a round shell 7 goes into a flexible edge 10 to the diagonal notch, which either with a -th fitting in the cylinder sleeve of the cartridge solder is filled or in the sleeve wall one over. Before the introduction; of the Bödehstückes 4 into which is pressed.; · '.:'. ^ ^: - ^: - '. ■ } ': ■;.: \' ^: 7C ■ '- · .. _ Sleeve; 1, the edge 10 has a larger diameter

In: Another known shotgun cartridge is 60 meters than the diameter of the filling body 5, namely a base piece made of Syrithetic plastic sleeve 1. A basic feature of the material with a bowl-shaped upper part is provided: The invention has that bottom piece 4 see between, but the shell circumference and the circumference of the ^v packing 5 and the shell ^ 7 <a deep notch 11 bottom piece are bei'gleichem diameter only or a deep incision over the whole - adhered to the inner sleeve wall.. .65 circumference of the piece runs and a V-shaped

In all known shotgun cartridges, there is no single cross-section. '

: Wall-free seal for the launch gases in Rieh- In the modified version of FIG. 3 is

direction to the cartridge base. At the last the bottom piece 4 with three superimposed