DE1905103A1 - Tube, sleeve or the like with a shaped piece arranged at one end - Google Patents

Description

DIKAMIO? NOBEL · AKTIENGESELLSCHAFT Troisdorf, District Cologne

Tube, sleeve or the like with one arranged at one end

Fitting ■■ .- "'.

The invention relates to a pipe, a sleeve or the like with a arranged at one end fitting, which has an inner and a outer part has "

It is "known in shotgun cartridges at one" end of the sleeve for example made of cardboard or stretched plastic an3uordnen a two-part mold _y the "an inner Bodenpfropfenj insert od. The like, having from beispiels- 'as cardboard or plastic, and an outer metal cap. These two parts are connected to the end of the sleeve in that the metal cap is radially compressed by means of a suitable tool after the sleeve and the bottom plug have been inserted, so that the sleeve is held between the metal cap and the bottom plug by frictional engagement Requirements can also be provided, in addition: or by itself the; metal cap with an or

^'* ■ - i ■' ■ '■' ■■ "plurality extending in TJmfangsriehtung Eindrüekungen, beading od ο like, Su 'provided so that there is a iormschlußverbindung between the metal cap and the sleeve end" This type of Terbindung' between sleeve end and fitting but has substantially aen Kachteil to that of the production-technical effort is rather elevating lent to an all requirements to achieve sufficient strength of the connection. "

JJs Although further known od _s Iqhre, sleeves * the like. With arranged at one end, "" molding hersustellen integrally, for example, to inject plastic. This manufacturing method is ruled out, however, if the pipe, the sleeve or the like, and the fitting have very different requirements ^

/ 2

For example, it has not yet been possible to produce one-piece full plastic shotgun cartridge cases due to the low activity of the case community. 'prevent au - - ;.' _s unwanted "wanted Sißbildungen in the delivery." the shot & m encryption ■ "..- ■ sohluS the front sleeve end reliable.

The invention is, based on the object _s au-- DIE above -am example of the shot the cartridge case explained ^FaeJiteile; avoid _s d _e -h <, the manufacture-of yerbiotasyg. between the-._-. Tube, the sleeve OCl like _e and the mold piece at -at least .. .. "equal strength of the Yerbindrag to simplify * ■".

This object is inventively achieved dadureli ₉ that the two parts of "des- shaped piece form-fitting manner with each other vef ~ btmden vj <Araeen vmä between them the end of the Bohres _9:., Sleeve © Od ₀ like ο by positive and / or" Frictional 'If one forms the form-locking connection between the · - at = - - .- ■ the parts of the molded piece, for example in the manner of a -very screw connection from _9, then one has it in one's hand in a simple way "the strength of the internal connection "by more or less screwing the two parts of the fitting together

With regard to Q.inen simple and rational as possible assembly AEEP individual parts of it proves to be beneficial · - i heft when in.-expedient embodiment of the invention, the; outer part of the shaped piece whose inner part is ring-shaped \\ ^: - \ enclosing-and is designed to be connectable to it in the manner of a snap connection »," at least one of the parts being made of sufficiently elastic material » ■ -''- 'J' * -

In order to achieve the highest possible strength of the connection between his drill, the sleeve or the like, and the fitting on the one hand with the most favorable voltage distribution possible ment in.dem tube, the sleeve or the like. On the other side, i

00 9 8 32/1 ^117/3

it proves to be advantageous, according to another proposal of the invention, in the area of the positive and / or frictional connection the two parts of the forra piece and one end of the tube, the sleeve or the like essentially with an opening angle of about 45 ° having truncated conical surfaces.

The connection can still be improved if, according to a further proposal of the invention in the field of shape and / or Frictional connection of at least one of the parts of the shaped piece with od in the circumferential direction of the tube, the sleeve. The like. Extending fine grooves, teeth or the like. Is provided. If both parts of the molded piece are fitted with such an upper f flat shape, care must of course be taken that the grooves, teeth or the like. In both parts are arranged and designed so that a weakening or even a cutting of the material des'Rohres, the sleeve od. is reliably avoided under all circumstances.

The invention explained above, which, for example, for Closure of one end of plastic pipes, e.g. for explosive cartridges, can be used is particularly applicable wherever the properties of the pipe, the Sleeve or the like on the one hand and that of the fittings on the other hand Very different requirements are made, as with * ·. , for example when used as a shotgun shell, where then the inner part of the fitting is formed with a primer bearing and an axial ignition kahal. One has it in hand, a tough and very strong one for the sleeve shaft Plastic, e.g. B. stretched low-pressure polyethylene, and for daa outer molded part with the groove for the extractor of the weapon As hard plastic as possible, e.g. B. a polyamide or a Polycarbonate to choose «

The invention is shown in the drawing in one exemplary embodiment a shotshell case, and is based on this below nooh explained in more detail. It each show in section

A 009832/1 11 17

Fig. 1 the individual parts of the shotgun shell before assembling and

Fig. 2 the finished shotgun shell ·,, ·

The sleeve 1 shown in FIG. 1, for example from stretched low-pressure polyethylene is at the end to a truncated cone with an opening angle of about 45 °. drawn. In the sleeve 1 is from the other end, the "inner Part 3 of the fitting used, namely with the annular bead 6 end first. At the other end, the inner part 5 is provided with an annular cylindrical projection 7, w which serves to take up the propellant charge and a gain the shotgun shell and improve the ignition and implementation the propellant charge. Part 3 is also with the bearing 8 for receiving the primer 9 and with the axial ignition channel 10 is provided.

According to the arrow A, the part 3 with the annular bead β is passed through the end 2 of the sleeve 1, possibly with a corresponding elastic expansion of the latter, and pressed into the outer, essentially ring-shaped part 4 of the molded piece until the corresponding elastic deformation of the one or possibly also the two parts of the mold tk sttickeä the annular bead 6 snaps into the corresponding thereto formed in the part 4 annular shoulder. 11 This snap connection between the parts 3 and 4 is designed in such a way that the end 2 of the sleeve 1 is clamped sufficiently firmly between the parts 3 and 4 and thus securely through frictional engagement and, if the material of the sleeve 1 is suitably rigid, also through. Positive locking is held. An additional increase in the strength of the connection is caused by the circumferential grooves 5 in part 4, the dimensions of which are of course selected as a function of the sleeve material in such a way that optimum conditions arise with regard to the strength of the connection. With regard to the elastic compression of the part 3 when it is pressed into the part 4, the primer 9 is expediently inserted into the part 3 only then »

009832/1117

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if this is already positively connected to part 4 • is.

The one in the Pig. 2 assembled shotshell shown at ^ which the parts that correspond to Pig, 1 are provided with the same reference numerals, points within the ring cylindrical Approach 7 of part 3, the propellant charge 12, which is towards the front end of the sleeve 14 through the approach intermediate supporting means 13 made of, for example, mushroom or cardboard is covered. The shot charge 15 is between the intermediate means 13 and the front sleeve end 14- which is closed in a known manner, for example by folding. (|

The primer 9 inserted into the bearing 8 presses depending on the situation Dimensions in relation to those of the bearing 8 the inner Part 3 more or less strongly against the outer part 4 and prevented such an unintentional loosening of the positive and / or frictional connection of the Rohresj the sleeve 1 od, the like. With the fitting for example, safe even if one of the two parts of the molded piece a slight plastic deformation during assembly should learn what without subsequently inserted Primer 9 may be an undesirable reduction the contact pressure between the two parts of the Forrastüekes as a result h ^ / ben could * in the same! Senses, d * h. form- and / or frictional connection is supportive, works otherwise also the Diück of the JDg, who developed after the "ignition stand"

Troisdorf, January 29th, 69
Sc / Mi 69 O96

009832 / 1t

Claims (2)

Godfather η tan 8 ρ rich β 1, pipe, sleeve or the like »with a shaped piece arranged at one end, which has an inner and an outer part, thereby ge ke nn ζ ei ahne t _s that the two parts (-3,4) of the shaped piece, form-fitting are connected with each other and between them the end. (2) of the tube ^ of the sleeve (1) or the like. Is held by positive and / or hot locking. Od 2 .'- pipe sleeve. _O the like after. Claim-T ', characterized-.marked,'. . that the outer part (4) of the Formstücke® "surrounds and is connected thereto by way of a snap connection ■ _r is wherein at least one of the parts ^ '■ ■ ■." whose inner part / (3) is annular -, - (3 »4) is made of sufficiently elastic materialν 3 * tube. Sleeve od _{e s} the like according to claim 1 or 2 _9. thereby marked = ·. ■ ^: - draws9 - that in the area of the positive and / or frictional connection · = the two parts "(3» 4) of the molded piece and one end (2) of the tube, the sleeve (1) ode-dgJL, essentially with: frustoconical surfaces having an opening angle of approximately 45 °. _; . . '. ■ _ .. ' ~ \ 4 »tube, sleeve cd» the like according to one of the. Ansp.rüch® 1 to .3 ?. da-- t characterized in that in the region d "er '" iOrm- • and / ode-r.Reib · ^ - closing connection of at least one of the parts "" (3 _? 4) of the form; . stüekes with · in circumferential direction of the 'Bohres _r of the sleeve (I) - oä, like extending Rillejij fine teeth (5) or the like .. _e. ■■ provided " λ 5 * tube, sleeve® or the like according to one of claims 1 to 4 »characterized by the use as a shotgun shell.» · wherein the inner part (3) of the fitting with a primer bearing (Ö) and an axial ignition channel (TO) . is. ■ ...-::. '. _:: ■ ■■ ν ■ _. ..,. ■■ /: ■■ _: Troisdorf, 29.1.69 _nnQ « \ -? / _Λ * * η sc / Mi 69 οοβ W® $ ms / imJ-