BE891371A - CONVERGENCE ADJUSTING DEVICE FOR RIFLE WITH SUPERIMPOSED GUNS AND RIFLES THUS EQUIPPED. - Google Patents

CONVERGENCE ADJUSTING DEVICE FOR RIFLE WITH SUPERIMPOSED GUNS AND RIFLES THUS EQUIPPED. Download PDF

Info

Publication number
BE891371A
BE891371A BE2/59486A BE2059486A BE891371A BE 891371 A BE891371 A BE 891371A BE 2/59486 A BE2/59486 A BE 2/59486A BE 2059486 A BE2059486 A BE 2059486A BE 891371 A BE891371 A BE 891371A
Authority
BE
Belgium
Prior art keywords
nozzle
tube
rifle
convergence
choke
Prior art date
Application number
BE2/59486A
Other languages
French (fr)
Original Assignee
Herstal Sa
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Herstal Sa filed Critical Herstal Sa
Priority to BE2/59486A priority Critical patent/BE891371A/en
Publication of BE891371A publication Critical patent/BE891371A/en
Priority to BE2/59870A priority patent/BE894664R/en
Priority to IT24255/82A priority patent/IT1191082B/en
Priority to ES1982278755U priority patent/ES278755Y/en
Priority to JP21455682A priority patent/JPS58127097A/en
Priority to FR8220475A priority patent/FR2517817A1/en

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41WEAPONS
    • F41AFUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
    • F41A21/00Barrels; Gun tubes; Muzzle attachments; Barrel mounting means
    • F41A21/06Plural barrels
    • F41A21/08Barrel junctions

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Telescopes (AREA)
  • Nozzles (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)

Description

       

  "Dispositif de réglage de convergence pour fusil à canons superposés et fusil ainsi équipé" La présente invention concerne un dispositif de réglage

  
de convergence pour fusil à canons superposés. Elle s'étend

  
à tout fusil équipé d'un tel dispositif.

  
On connaît de nombreux dispositifs permettant de modifier la convergence des buses de fusils superposés. La plupart consistent en un intercalaire particulier, disposé entre les buses, et à l'aide duquel on peut très légèrement cintrer ces dernières (voir par exemple le brevet belge n[deg.] 837.789). L'expérience a prouvé qu'avec des dispositifs de ce genre, il était pratiquement impossible de faire varier la convergence géométrique des deux buses sans perturber la rectitude de la buse supérieure et, par là, la hauteur d'impact en cible de celle-ci. Or,

  
il se fait que les pratiquants du tir au pigeon (Trap) par exemple, désirent que la buse supérieure tire au point visé quel que soit le croisement souhaité pour les gerbes de plombs tirées successivement au moyen des buses inférieure et supérieure.

  
Une autre solution déjà proposée (voir brevet belge

  
n[deg.] 875.228), consiste en un dispositif à tube-choke échangeable et orientable. Des tubes-chokes sont rapportés à la bouche de la ou des buses où ils sont chacun maintenus en place à l'aide d'une bague filetée. Ces tubes sont réalisés de sorte que l'axe longitudinal de leur partie interne conique (constituant le choke proprement dit) fasse un certain angle avec l'axe de leur surface cylindrique extérieure prenant appui dans la ou les buses du fusil. Dès lors, à toute rotation du tube par rapport à la buse auquel il est associé correspond une orientation de l'axe de ladite partie conique par rapport à celui de ladite buse.

  
Si un tel dispositif permet en effet d'obtenir la modification désirée de la hauteur d'impact en cible de la buse correspondante, cet avantage se paie par une altération parasite du réglage en déviation de la gerbe de plomb atteignant la cible.

  
Le but de l'invention est donc de fournir un dispositif simple et commode de réglage de convergence, sans perturber en aucune manière les réglages en déviation.

  
A cet effet, un dispositif selon l'invention est du type constitué par au moins un tube destiné à prolonger une buse du fusil à laquelle il est solidarisé par un dispositif de fixation permettant le réglage de l'orientation de l'axe de l'alésage dudit tube par rapport à celui de la buse associée. Il se caractérise en ce que ledit dispositif de fixation est réalisé en sorte que l'axe de l'alésage dudit tube est toujours situé dans le plan contenant les axes des buses du fusil.

  
L'invention sera décrite plus en détail ci-après, avec référence aux dessins schématiques et purement illustratifs annexés, dans lesquels les figures 1 et 2 montrent, partiellement en coupe, les extrémités des deux buses d'un fusil à canons superposés dcnt la buse inférieure est équipée d'un dispositif selon l'invention. Ces deux figures montrent le dispositif approximativement dans ses deux positions extrêmes, le dessin étant fortement exagéré.

  
Soit donc un fusil ayant deux buses superposées 1 et 2. A

  
 <EMI ID=1.1> 

  
supérieure est librement traversée par la buse 1.

  
Cette muselière 3_ contient un tourillon cylindrique 4 dont l'axe est normal à celui de la buse 2. Le tourillon 4 est traversé par un passage diamétral fileté dans lequel est vissé une extrémité d'un tube-choke 5.

  
La muselière 3 est pourvue de deux vis de réglage, respectivement 6 et 7, dont les extrémités intérieures viennent engager des surfaces d'appui ou platures, respectivement 8 et 9, prévues à cet effet sur le tourillon 4.

  
Les figures montrent clairement comment, en vissant et



  "Convergence adjustment device for rifle with superimposed barrels and rifle thus equipped" The present invention relates to a adjustment device

  
of convergence for rifle with superimposed barrels. She's spreading

  
to any rifle equipped with such a device.

  
Many devices are known for modifying the convergence of the nozzles of superimposed rifles. Most consist of a special interlayer, placed between the nozzles, and with the help of which the latter can be very slightly bent (see for example Belgian patent n [deg.] 837,789). Experience has shown that with devices of this kind, it was practically impossible to vary the geometric convergence of the two nozzles without disturbing the straightness of the upper nozzle and, thereby, the target impact height thereof. this. Gold,

  
it happens that practitioners of pigeon shooting (Trap) for example, want the upper nozzle to fire at the target point regardless of the desired crossing for the sheaves of pellets drawn successively by means of the lower and upper nozzles.

  
Another solution already proposed (see Belgian patent

  
n [deg.] 875.228), consists of an exchangeable and adjustable tube-choke device. Choke tubes are attached to the mouth of the nozzle (s) where they are each held in place using a threaded ring. These tubes are made so that the longitudinal axis of their conical internal part (constituting the actual choke) makes a certain angle with the axis of their external cylindrical surface resting in the gun or nozzles. Therefore, to any rotation of the tube relative to the nozzle with which it is associated corresponds an orientation of the axis of said conical portion relative to that of said nozzle.

  
If such a device indeed makes it possible to obtain the desired modification of the target impact height of the corresponding nozzle, this advantage is paid for by a parasitic alteration of the adjustment in deflection of the sheaf of lead reaching the target.

  
The object of the invention is therefore to provide a simple and convenient device for adjusting convergence, without in any way disturbing the deflection adjustments.

  
To this end, a device according to the invention is of the type constituted by at least one tube intended to extend a nozzle of the rifle to which it is secured by a fixing device allowing the adjustment of the orientation of the axis of the bore of said tube relative to that of the associated nozzle. It is characterized in that said fixing device is made so that the axis of the bore of said tube is always located in the plane containing the axes of the rifle nozzles.

  
The invention will be described in more detail below, with reference to the accompanying schematic and purely illustrative drawings, in which FIGS. 1 and 2 show, partially in section, the ends of the two nozzles of a rifle with cannons superimposed on the nozzle lower is equipped with a device according to the invention. These two figures show the device approximately in its two extreme positions, the drawing being greatly exaggerated.

  
Consider a rifle with two superposed nozzles 1 and 2. A

  
 <EMI ID = 1.1>

  
nozzle 1 is freely crossed by nozzle 1.

  
This muzzle 3_ contains a cylindrical journal 4 whose axis is normal to that of the nozzle 2. The journal 4 is crossed by a threaded diametrical passage in which is screwed one end of a tube-choke 5.

  
The muzzle 3 is provided with two adjustment screws, respectively 6 and 7, the inner ends of which engage bearing surfaces or plates, respectively 8 and 9, provided for this purpose on the pin 4.

  
The figures clearly show how, by screwing and


    

Claims (5)

dévissant les vis 6 et 7, on peut aisément régler la convergence. On notera différentes caractéristiques de ce dispositif : - l'axe du tube-choke 5 est toujours situé dans le plan contenant les axes des buses 1 et 2, ce qui exclut toute modification de la déviation lors du réglage de la convergence; - la buse 2 est raccourcie par rapport à la buse 1 d'une longueur substantiellement égale à celle du tube-choke; - la partie interne postérieure du tube-choke 5 a été butée, comme indiqué en 10, de sorte que l'arête postérieure interne dudit tube ne se trouve jamais sur le chemin de la charge de plombs se déplaçant vers la bouche sous l'effet de la pression des gaz de la cartouche; - du fait que la buse 1 peut librement coulisser dans la muselière 3, on évite tout effet bilame entre les deux buses lors de l'échauffement progressif de la buse inférieure, généralement plus utilisée que l'autre; - le tube 5 est une pièce peu onéreuse et aisément remplaçable, par exemple en cas d'usure et/ou si l'utilisateur désirerait un choke plus ouvert ou plus fermé. Il est évident que de nombreuses modifications peuvent être apportées à l'exemple susdécrit, sans pour autant sortir du cadre de l'invention. Ainsi, par exemple, les vis de réglage pourraient occuper d'autres positions que celles représentées ou être remplacées par des moyens équivalents. REVENDICATIONS.unscrewing the screws 6 and 7, one can easily adjust the convergence. We will note different characteristics of this device: - the axis of the tube-choke 5 is always located in the plane containing the axes of the nozzles 1 and 2, which excludes any modification of the deviation when adjusting the convergence; - the nozzle 2 is shortened relative to the nozzle 1 by a length substantially equal to that of the tube-choke; - the rear internal part of the tube-choke 5 has been stopped, as indicated in 10, so that the internal rear edge of said tube is never on the path of the load of pellets moving towards the mouth under the effect the gas pressure of the cartridge; - the fact that the nozzle 1 can slide freely in the muzzle 3, any bimetallic effect between the two nozzles is avoided during the gradual heating of the lower nozzle, generally used more than the other; - The tube 5 is an inexpensive and easily replaceable part, for example in the event of wear and / or if the user would like a more open or more closed choke. It is obvious that many modifications can be made to the example described above, without going beyond the ambit of the invention. Thus, for example, the adjusting screws could occupy other positions than those shown or be replaced by equivalent means. CLAIMS. 1.- Dispositif de réglage de convergence pour fusils à canons superposés, du type constitué par au moins un tube destiné à prolonger une buse du fusil à laquelle il est solidarisé par un dispositif de fixation permettant le réglage de l'orientation de l'axe de l'alésage dudit tube par rapport à celui de 1.- Convergence adjustment device for rifles with superimposed barrels, of the type constituted by at least one tube intended to extend a nozzle of the rifle to which it is secured by a fixing device allowing the adjustment of the orientation of the axis of the bore of said tube relative to that of la buse associée, caractérisé en ce que ledit dispositif de fixation est réalisé en sorte que l'axe de l'alésage dudit tube r the associated nozzle, characterized in that said fixing device is designed so that the axis of the bore of said tube r est toujours situé dans le plan contenant les axes des buses du fusil. is always located in the plane containing the axes of the nozzles of the rifle. 2.- Dispositif selon la revendication 1, caractérisé en ce que ledit dispositif de fixation est constitué par une muselière fixée à la buse à équiper, cette muselière contenant un tourillon cylindrique dont l'axe est normal à celui de ladite buse, ce tourillon étant traversé par un passage diamétral dans lequel est fixée une extrémité dudit tube, par exemple par vissage. 2.- Device according to claim 1, characterized in that said fixing device is constituted by a muzzle fixed to the nozzle to be fitted, this muzzle containing a cylindrical journal whose axis is normal to that of said nozzle, this journal being crossed by a diametrical passage in which is fixed one end of said tube, for example by screwing. 3.- Dispositif selon la revendication 2, caractérisé en 3.- Device according to claim 2, characterized in ce que ladite muselière est pourvue de deux vis de réglage dont les têtes sont accessibles de l'extérieur de cette dernière et dont les autres extrémités viennent engager des surfaces d'appui prévues à cet effet sur ledit tourillon. that said muzzle is provided with two adjustment screws, the heads of which are accessible from the outside of the latter and the other ends of which engage bearing surfaces provided for this purpose on said pin. 4.- Dispositif selon l'une ou plusieurs des revendications précédentes, caractérisé en ce qu'une buse du fusil est 4.- Device according to one or more of the preceding claims, characterized in that a nozzle of the rifle is équipée, cette buse étant plus courte que l'autre buse d'une longueur substantiellement égale à celle dudit tube. equipped, this nozzle being shorter than the other nozzle of a length substantially equal to that of said tube. 5.- Dispositif de réglage de convergence pour fusil à canons superposés et fusil ainsi équipé, substantiellement tels que décrits précédemment et illustrés aux dessins annexés. 5.- Convergence adjustment device for rifle with superimposed barrels and rifle thus equipped, substantially as described above and illustrated in the accompanying drawings.
BE2/59486A 1981-12-07 1981-12-07 CONVERGENCE ADJUSTING DEVICE FOR RIFLE WITH SUPERIMPOSED GUNS AND RIFLES THUS EQUIPPED. BE891371A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
BE2/59486A BE891371A (en) 1981-12-07 1981-12-07 CONVERGENCE ADJUSTING DEVICE FOR RIFLE WITH SUPERIMPOSED GUNS AND RIFLES THUS EQUIPPED.
BE2/59870A BE894664R (en) 1981-12-07 1982-10-11 CONVERGENCE ADJUSTING DEVICE FOR RIFLE WITH SUPERIMPOSED GUNS AND RIFLES THUS EQUIPPED
IT24255/82A IT1191082B (en) 1981-12-07 1982-11-15 CONVERGENCE ADJUSTMENT DEVICE FOR HUNTING RIFLE, AND RIFLE SO EQUIPPED
ES1982278755U ES278755Y (en) 1981-12-07 1982-12-06 CONVERGENCE REGULATION DEVICE FOR HUNTING SHOTGUNS.
JP21455682A JPS58127097A (en) 1981-12-07 1982-12-07 Regulator for convergence for sport gun
FR8220475A FR2517817A1 (en) 1981-12-07 1982-12-07 Shot gun barrel convergence adjuster - has extension tube fitted to one barrel and held by adjustable spindle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE2/59486A BE891371A (en) 1981-12-07 1981-12-07 CONVERGENCE ADJUSTING DEVICE FOR RIFLE WITH SUPERIMPOSED GUNS AND RIFLES THUS EQUIPPED.

Publications (1)

Publication Number Publication Date
BE891371A true BE891371A (en) 1982-06-07

Family

ID=3865580

Family Applications (1)

Application Number Title Priority Date Filing Date
BE2/59486A BE891371A (en) 1981-12-07 1981-12-07 CONVERGENCE ADJUSTING DEVICE FOR RIFLE WITH SUPERIMPOSED GUNS AND RIFLES THUS EQUIPPED.

Country Status (2)

Country Link
JP (1) JPS58127097A (en)
BE (1) BE891371A (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3029540A (en) * 1960-07-25 1962-04-17 Frank A Pachmayr Gun choke mounting apparatus
FR2002163A1 (en) * 1976-01-22 1969-10-17 Siemens Ag
US4195432A (en) * 1978-08-21 1980-04-01 Hickman Jack L Adjustable means to vary point of impact of over-and-under firearms

Also Published As

Publication number Publication date
JPS58127097A (en) 1983-07-28

Similar Documents

Publication Publication Date Title
FR2921893A1 (en) DEVICE FOR CONTROLLING A HYDRAULIC SUSPENSION DAMPER DEVICE
CH655867A5 (en) SPRAY NOZZLE, ESPECIALLY FOR SPRAY GUNS.
FR2641618A1 (en) MIRROR HEAD FOR LASER
EP1304538A1 (en) Mounting of a sighting device on firearms
BE891371A (en) CONVERGENCE ADJUSTING DEVICE FOR RIFLE WITH SUPERIMPOSED GUNS AND RIFLES THUS EQUIPPED.
FR2478235A1 (en) CONICAL WHEEL TRICONE
FR3068775A3 (en) ARM TRAJECTORY ADJUSTMENT STRUCTURE
FR2517817A1 (en) Shot gun barrel convergence adjuster - has extension tube fitted to one barrel and held by adjustable spindle
FR2686152A3 (en) Improved device allowing articulation of the stock of a hunting rifle
BE1012932A3 (en) Firearm at least two guns geometry adjustable and method and device for setting the alignment.
WO1998027399A1 (en) Short gun with barrel in the extension of the stock
EP0045670B1 (en) Adjustable muzzle gland for rifles
EP0350396B1 (en) Mechanic system for reproducing an angular position
FR2568995A3 (en) Choke device for hunting rifles with two or more than two barrels
CA2216604A1 (en) Device for the angular positioning of a mass with respect to a horizontal support axis, and lighting apparatus fitted with such device
FR2522803A1 (en) LIGHT ARTILLERY MORTAR
FR2795169A1 (en) Resting part for butt of firearm uses screws going through vertical elongated holes along its sides, tightening/untightening of screws modifying position of resting part relative to butt
FR2855255A1 (en) Aiming system for shooting weapon e.g. firearm, has cylindrical sleeve placed at free end of band of weapon barrel and block placed at intermediate point on barrel in axis of sleeve
EP0564768A1 (en) Sub-assembly for elastic return of a retaining device of an alpine binding element
EP4080154A1 (en) Rifle stock with adjustable positioning
BE1015412A3 (en) Firearm at least two guns geometry adjustable bunk and method for controlling the geometry.
FR3003939A1 (en) SUPPORT DEVICE FOR FIREARM
BE699045A (en)
FR3017702A1 (en) RIFLE WITH TWO GUNS JUXTAPOSES
FR2695991A1 (en) Stabiliser for hand-held archery bow - has damper weights in tubes with anti vibration locking of screw adjustment

Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: FABRIQUE NATIONALE HERSTAL FN S.A.

Effective date: 19841207