FR2842293A1 - DEVICE FOR ATTACHING A SHOCK WAVE MODERATOR, SHOCK WAVE MODERATOR AND FIREARMS EQUIPPED WITH THE DEVICE - Google Patents

Abstract

The present invention relates to a device for attaching a shock wave moderator as well as to a shock wave moderator and a firearm equipped with this attachment device. impact on at least one barrel (2a, 2b) of a firearm (1) comprising means for holding the barrel (2a, 2b) and means for fixing the wave moderator to the body (8) of shock (3) is characterized by the fact that it comprises a bearing piece (9) capable of being applied on a surface of the body (8) of the shock wave moderator (3) oriented transversely with respect to its long direction, for the transmission of longitudinal forces to the shock wave moderator (3).

Description

i The present invention relates to a device for fixing a moderator

  shock wave on at least one barrel of a firearm.

  It also relates to a shock wave moderator acting on the recoil

  and on the sound intensity and a firearm comprising of this fixing device.

  The invention will particularly find its application for the equipment of rifles for the practice of sport shooting. In particular, sport shooting or clay pigeon shooting practices intended for a wider audience than usual, in particular children and

  women or an indoor practice are covered by the present invention.

  We already know different types of shock wave moderators capable of

  i0 equip firearms and positioned by threading on the barrel (s) of the rifle.

  In this context, the document EP-A-0 772 758 presents a shock wave moderator for a rifle capable of moderating the sound of a clay pigeon or recreational rifle and adaptable to the rifle. This device comprises a tubular body adapting to the barrels of the weapon and comprising an annular decompression chamber. Centering pieces ensure the screw moderator and the outside of the wave moderator

shock on the guns.

  The Applicant has found that the practice of sport shooting which involves repeated and high frequency use of the firearm involves significant stress on the rifle equipped with the shock wave moderator, particularly in

  shear, due to the recoil of the weapon, overheating, shock and vibration.

  There is currently a need to provide means for attaching a sound moderating device or else a shock wave moderator to the

  barrels of a firearm having great mechanical resistance.

  The present invention provides a solution to this need by proposing a new fixing device providing increased mechanical strength in the connection of the shock wave moderator and the barrels of the firearm. In

  In particular, greater recovery of shear is allowed by the device.

  In doing so, the possible screws used for securing the shock wave moderator to the fixing device are no longer subjected to shearing, which

  increases the service life and safety of the assembly during use.

  Other objects and advantages will appear during the description which follows

  of a preferred embodiment of the invention which is not, however, limiting.

  The present invention relates to a device for fixing a shock wave moderator on at least one barrel of a firearm comprising means for retaining the barrel and means for fixing to the body of the shock wave moderator characterized by the fact that it comprises a support piece capable of being applied to a surface of the body of the shock wave moderator oriented transversely with respect to its long direction, for the transmission of the longitudinal forces to the wave moderator of choc. This device can be presented according to the preferred variants introduced below: - it has two sides flanking the barrel and a spacer interposed between the two sides; - The support piece is secured to each of the sides; - The spacer has a bearing surface for the barrel; the fixing means are screws or rivets; - The support piece comprises an application surface on the barrel The invention also relates to a shock wave moderator for a firearm comprising a body mountable on at least one barrel of the firearm which

  includes at least one fixing device.

  Advantageously, this shock wave moderator is such that the body has a hole through which the support piece passes and that the edge of the hole constitutes the

  application surface of the support piece.

  The invention also relates to a firearm characterized in that it

  includes a shock wave moderator according to the invention.

  Preferably, this firearm has two barrels and the device for

  fixing comprises a spacer inserted between two barrels.

  The attached drawings are given by way of examples and are not limitative of the invention. They represent only one embodiment of the invention and

  will make it easy to understand.

  Figure 2 is a side view of a rifle fitted with a wave moderator

  impact and comprising a fixing device, without support piece.

  Figure 1 is a sectional view along lines A-A.

  FIG. 4 is a partial side view of a rifle equipped with a shock wave moderator and having a fixing device according to the invention with a

support piece.

  Figure 3 illustrates the mounting of the support piece on the rest of the

  fixing in section along lines B-B in Figure 4.

  There is shown in Figures 1 to 4 an example of cooperation of a moderator

  shock wave 3 and a gun 1 here in the form of a rifle.

  To this end, the shock wave moderator 3 comprises a body 8, generally of hollow cylindrical section and able to be positioned around the barrel (s) 2a, 2b of the weapon 1.

  In the illustrated case, two superimposed guns are present.

  Fixing the shock wave moderator 3 requires great resistance

  mechanical connection and perfect centering on the barrels 2a, 2b.

  To this end, the fixing device of the invention comprises two sides 6a, 6b, 10 each positioned on either side of the barrels 2a, 2b to frame them. A symmetrical constitution of the sides 6a, 6b may be suitable. In the interstitial space between the superimposed barrels 2a, 2b, a spacer 5 is inserted so as to

  join the sides 6a, 6b and maintain a fixed distance between these two sides.

  Advantageously, this spacer is installed at the time of manufacture.

  i5 guns and it is secured to each of them by electro-welding.

  A screw connection is advantageously provided between each of the

  blanks 6a, 6b and the spacer 5 as shown particularly in FIGS. 1 and 3.

  The combination of the sides 6a, 6b and the spacer 5 is able to perfectly maintain the barrels 2a, 2b. In addition, a bearing surface of the spacer 5 on each of the barrels 2a, 2b is provided and is shown in curved form at

Figures 1 and 3.

  On the other hand, the fixing device is secured to the body 8 of the moderator

shock wave 3.

  In this context, screws 7 may constitute means for embedding the

  fixing device on the body 8.

  For example, in Figures 1 and 3, two screws are used to mount each

blank 6a, 6b on the body 8.

  According to the invention, a support piece 9 is further constituted in order to take up a large part of the forces imposed on the fixing device during the operation of the firearm and to transmit them to the body of the moderator

shock wave.

  In this context, a support piece 9 is attached to the rest of the

  fixing, for example by screwing, as shown in FIG. 3.

  In correspondence with the support piece 9, a hole is formed in the body 8 of the shock wave moderator 3 to allow the piece 9 to pass through said body 8

for its attachment to the device.

  The support piece 9, in this through position, is able to be applied to the edges of the hole formed in the body 8. This application surface allows the transmission of forces to the body 8, the mass of which is largely sufficient to

  bear the constraints applied.

  The support piece 9 can either be made of synthetic material (such as Ergal 55) or

in aluminium.

  The support piece 9 also makes it possible to strengthen the attachment of the shock wave moderator 3 to the barrels 2a, 2b by having an application surface 10

on a cannon.

  A shock wave moderator 3 can be equipped with one or more devices thus presented as required. For alignment and

  maintenance, at least two devices may prove useful in practice.

  The invention finally relates to a firearm equipped with a wave moderator

  shock of the type previously described and comprising a fixing device.

  Two devices are advantageously formed along the length of the barrel, one

  just before the muzzle, the other posterior just before the handguard.

REFERENCES

  1. Firearm 2a - 2b. Barrels 3. Shock wave moderator 4. Fixing device 5. Spacer 6a - 6b Flanks 7. Screws 8. Body of shock wave moderator 9. Support piece 10. Application surface

Claims (10)

  1. Fixing device (4) of a shock wave moderator (3) on at least one barrel (2a, 2b) of a firearm (1) comprising means for holding the barrel (2a, 2b ) and means for fixing the shock wave moderator (3) to the body (8), characterized in that it comprises a support piece (9) capable of being applied to a surface of the body ( 8) of the shock wave moderator (3) oriented transversely to its long direction, for the transmission of longitudinal forces to the wave moderator shock io (3).   2. Device according to claim 1 characterized in that it has two sides (6a, 6b) framing the barrel (2a, 2b) and a   spacer (5) interposed between the two sides (6a, 6b).   3. Device according to claim 2 characterized in that   That the support piece (9) is secured to each of the sides (2a, 2b).   4. Device according to claim 2 or 3 characterized in that   That the spacer (5) has a bearing surface for the barrel (2a, 2b).   5. Device according to any one of claims 1 to 4 characterized by the fact   Whether the fixing means are screws or rivets.   6. Device according to any one of claims 1 to 5 characterized   by the fact that the support piece (9) has an application surface on the barrel (2a, 2b). 7. shock wave moderator (3) for a firearm (1) comprising a body (8) mountable on at least one barrel (2a, 2b) of the firearm characterized in that it comprises at at least one fixing device (4) according to any one of claims 1 to 6.   8. shock wave moderator according to claim 7 characterized in that the body (8) has a hole through which the support piece (9) and that the   edge of the hole constitutes the application surface of the support piece (9).   9. Firearm (1) characterized in that it comprises a shock wave moderator (3) according to any one of claims 7 or 8.   10. Firearm (1) according to claim 9 characterized in that it comprises two barrels (2a, 2b) and that the fixing device (4)   comprises a spacer (5) interposed between two barrels (2a, 2b).