EP4602317A1 - Grenade launcher having a barrel which is arranged slidably relative to a trigger mechanism base - Google Patents

Grenade launcher having a barrel which is arranged slidably relative to a trigger mechanism base

Info

Publication number
EP4602317A1
EP4602317A1 EP23782742.3A EP23782742A EP4602317A1 EP 4602317 A1 EP4602317 A1 EP 4602317A1 EP 23782742 A EP23782742 A EP 23782742A EP 4602317 A1 EP4602317 A1 EP 4602317A1
Authority
EP
European Patent Office
Prior art keywords
barrel
latch
grenade launcher
guide rails
trigger mechanism
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
EP23782742.3A
Other languages
German (de)
French (fr)
Inventor
Josef ZAHORA
Vladimir Simek
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ceska Zbrojovka AS
Original Assignee
Ceska Zbrojovka AS
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 Ceska Zbrojovka AS filed Critical Ceska Zbrojovka AS
Publication of EP4602317A1 publication Critical patent/EP4602317A1/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41C—SMALLARMS, e.g. PISTOLS, RIFLES; ACCESSORIES THEREFOR
    • F41C27/00—Accessories; Details or attachments not otherwise provided for
    • F41C27/06—Adaptations of smallarms for firing grenades, e.g. rifle grenades, or for firing riot-control ammunition; Barrel attachments therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
    • F41A3/00—Breech mechanisms, e.g. locks
    • F41A3/12—Bolt action, i.e. the main breech opening movement being parallel to the barrel axis
    • F41A3/14—Rigid bolt locks, i.e. having locking elements rigidly mounted on the bolt or bolt handle and on the barrel or breech-housing respectively
    • F41A3/16—Rigid bolt locks, i.e. having locking elements rigidly mounted on the bolt or bolt handle and on the barrel or breech-housing respectively the locking elements effecting a rotary movement about the barrel axis, e.g. rotating cylinder bolt locks
    • F41A3/18—Rigid bolt locks, i.e. having locking elements rigidly mounted on the bolt or bolt handle and on the barrel or breech-housing respectively the locking elements effecting a rotary movement about the barrel axis, e.g. rotating cylinder bolt locks hand-operated
    • F41A3/22—Rigid bolt locks, i.e. having locking elements rigidly mounted on the bolt or bolt handle and on the barrel or breech-housing respectively the locking elements effecting a rotary movement about the barrel axis, e.g. rotating cylinder bolt locks hand-operated the locking being effected by rotating the operating handle or lever transversely to the barrel axis
    • F41A3/24—Rigid bolt locks, i.e. having locking elements rigidly mounted on the bolt or bolt handle and on the barrel or breech-housing respectively the locking elements effecting a rotary movement about the barrel axis, e.g. rotating cylinder bolt locks hand-operated the locking being effected by rotating the operating handle or lever transversely to the barrel axis the locking elements forming part of the operating handle or lever
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
    • F41A3/00—Breech mechanisms, e.g. locks
    • F41A3/12—Bolt action, i.e. the main breech opening movement being parallel to the barrel axis
    • F41A3/14—Rigid bolt locks, i.e. having locking elements rigidly mounted on the bolt or bolt handle and on the barrel or breech-housing respectively
    • F41A3/16—Rigid bolt locks, i.e. having locking elements rigidly mounted on the bolt or bolt handle and on the barrel or breech-housing respectively the locking elements effecting a rotary movement about the barrel axis, e.g. rotating cylinder bolt locks
    • F41A3/30—Interlocking means, e.g. locking lugs, screw threads
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
    • F41A9/00—Feeding or loading of ammunition; Magazines; Guiding means for the extracting of cartridges
    • F41A9/38—Loading arrangements, i.e. for bringing the ammunition into the firing position
    • F41A9/47—Loading arrangements, i.e. for bringing the ammunition into the firing position using forwardly-sliding barrels or barrel parts for loading

Definitions

  • Grenade Launcher having a barrel which is arranged slidabiy relative to a trigger mechanism base
  • the invention relates to a grenade launcher having a barrel which is arranged slidably relative to a trigger mechanism base between a front and a rear position, the barrel being locked in the rear locked position by a latch.
  • the grenade launcher can be used either on its own or attached to an assault rifle.
  • the barrel When a new cartridge is being loaded or a spent one is being extracted, the barrel can either be tilted to the side or moved forwards.
  • a latch that is housed in the frame of the weapon is sometimes used to lock the barrel.
  • the goal of the invention is to design a barrel lock that is simple both to manufacture and to operate.
  • the guide rails pass through longitudinal holes in the barrel.
  • the guide rails are interchangeably connected to the trigger mechanism base, preferably screwed on.
  • the latch of a grenade launcher for right-handed persons is positioned on the left, side of the barrel and engages a recess in the left guide rail
  • the latch When the barrel is in the extended position, the latch preferably rests on the front of the guide rail to prevent the barrel from retracting spontaneously.
  • the desired extent to which the barrel is to be extended can be easily adjusted by selecting different lengths of exchangeable guide rails.
  • the barrel guidance on the side guide rails and the locking by means of a latch positioned on the side of the barrel enable the weapon to be lowered in height, making it ergonomically more user-friendly when the grenade launcher is deployed under the host weapon or on a separate carrier.
  • the side latch is much more intuitively accessible to the non-shooting hand.
  • the grenade launcher has a barrel 1, which is slidably arranged between the front and rear positions relative to the base 5 of the trigger mechanism.
  • Guide rails 2 are screwed to opposite sides of the trigger mechanism base 5.
  • the barrel 1 is slidably mounted on guide rails 2 which pass through longitudinal holes in the barrel 1 .
  • the latch 3 In the extended position of the barrel 1 , the latch 3 rests on the front of the guide rail 2 and thus preyvents the barrel 1 from retracting spontaneously, This locking of the barrel 1 in the open position makes it easier for the user to remove a spent cartridge that is otherwise difficult to extract, where greater force is required to remove the cartridge from the chamber.
  • the latch 3 When the grenade launcher is being loaded, the latch 3 is pressed against the force of the unshown spring, causing the latch to disengage from the recess 7.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Toys (AREA)

Abstract

A grenade launcher having a barrel (1) which is arranged slidably relative to a trigger mechanism base (5) between a front and a rear position. The barrel (1) being locked in the rear locked position by a latch (3). The barrel (1) is slidably mounted on guide rails (2). The guide rails (2) are arranged on opposite sides of the trigger mechanism base (5). The latch (3) is positioned on a side of the barrel (1) and is pushed by the force of a spring against one of the guide rails (2). The latch (3) in the locked position of the barrel (1) engages a recess (7) in the corresponding guide rail (2).

Description

Grenade Launcher having a barrel which is arranged slidabiy relative to a trigger mechanism base
Technical field
The invention relates to a grenade launcher having a barrel which is arranged slidably relative to a trigger mechanism base between a front and a rear position, the barrel being locked in the rear locked position by a latch.
Background art
The grenade launcher is a light weapon designed to destroy armoured targets, live forces and military equipment located in open terrain or in field-type shelters. The grenade launchers can fire a wide variety' of grenades, such as high- explosive, armour-piercing, fragmentation and special types (thermobaric, smoke, illuminating, incendiary, gas, etc.).
The grenade launcher can be used either on its own or attached to an assault rifle.
When a new cartridge is being loaded or a spent one is being extracted, the barrel can either be tilted to the side or moved forwards.
In well-known grenade launchers, a hinged or sliding barrel looks into the latch. These systems have highly complex and articulated locking elements that are difficult both to manufacture and to operate
For grenade launchers with forward barrel movement, a latch that is housed in the frame of the weapon is sometimes used to lock the barrel.
The goal of the invention is to design a barrel lock that is simple both to manufacture and to operate. Summary of the invention
The said goal is achieved with a grenade launcher having a barrel which is arranged slidably relative to a trigger mechanism base between a front and a rear position, the barrel being locked in the rear locked position by a latch, according to the invention the principle of which is that the barrel is slidably mounted on guide rails, whereby the guide rails are arranged on opposite sides of the trigger mechanism base and the latch is positioned on a side of the barrel and is pushed by the force of a spring against one of the guide rails. The latch in the locked position of the barrel engages a recess in the corresponding guide rail
According to the preferred embodiment, the guide rails pass through longitudinal holes in the barrel.
According to another preferred embodiment, the guide rails are interchangeably connected to the trigger mechanism base, preferably screwed on.
The latch of a grenade launcher for right-handed persons is positioned on the left, side of the barrel and engages a recess in the left guide rail
When the barrel is in the extended position, the latch preferably rests on the front of the guide rail to prevent the barrel from retracting spontaneously.
An advantage of the solution according to the invention is that the guide rails allow several functions to be carried out. They primarily serve to guide the barrel, but also bear a lucking recess, and their front, in conjunction with the latch, is used to lock the barrel in the open position.
The desired extent to which the barrel is to be extended can be easily adjusted by selecting different lengths of exchangeable guide rails.
The barrel guidance on the side guide rails and the locking by means of a latch positioned on the side of the barrel enable the weapon to be lowered in height, making it ergonomically more user-friendly when the grenade launcher is deployed under the host weapon or on a separate carrier. At the same time, the side latch is much more intuitively accessible to the non-shooting hand.
The barrel guidance on the side guide rails is independent of the weapon frame. Therefore, it is not restricted by the host weapon’s interface and installation size for the purposes of mounting the grenade launcher. Known “frame” grenade launchers require the mounting interface to be a certain length, which can be a problem with a weapon that has a shorter forend. The grenade launcher according to the invention requires only a minimum length, which is also used for common accessories (flashlights, lasers, etc,), i.e. it can be mounted on a very short rifle.
The solution according to the invention maintains simplicity while delivering much greater reliability and more intuitive user handling, and is much easier to manufacture and maintain.
Brief Description of Drawings
The invention will be explained in more detail by reference to examples of a particular embodiment of the grenade launcher according to the invention, shown in the accompanying figures, each of which represents the following embodiment:
Fig. 1 - incomplete grenade launcher according to the invention with the barrel in the forward open position, attached to an MIL-STD-1913 host mounting interface;
Fig. 2 - grenade launcher according to Fig. 1 with the barrel in the rear locked position:
Fig. 3 - grenade launcher according to the invention, mounted on a host assault rifle.
Examples of Embodiments Figs, 1 and 2 show the main parts of the grenade launcher according to the invention. For the sake of simplicity, Figs. 1 and 2 do not show parts that are not necessary for the description of the modifications according io the invention.
In the role of an underslung weapon, the grenade launcher is attached to the lower host mounting interface 4 of a assault rifle 8 (see Fig, 3),
In stand-alone use, not. shown, the grenade launcher is mounted via an MIL- STD-1913 type host mounting interface 4 on a carrier fitted with a handle, folding detachable shoulder support, and simple mechanical sights on the top rail of the host mounting interface 4,
The grenade launcher has a barrel 1, which is slidably arranged between the front and rear positions relative to the base 5 of the trigger mechanism.
Guide rails 2 are screwed to opposite sides of the trigger mechanism base 5. The barrel 1 is slidably mounted on guide rails 2 which pass through longitudinal holes in the barrel 1 .
The barrel 1 is secured in the locked position by a latch 3, which is located on a side of the barrel 1 and is pressed to the guide rail 2 by an unshown spring. in the grenade launcher for right-handed persons as per Figs, 1 and 2, the latch 3 is located on the left side of the barrel 1 from the shooter’s viewpoint and fits into a pair of recesses 7 in the left guide rail 2. Taking into account the amount of stress from the shot, a single recess 7 is naturally sufficient for certain embodiments. In the extended position of the barrel 1 , the latch 3 rests on the front of the guide rail 2 and thus preyvents the barrel 1 from retracting spontaneously, This locking of the barrel 1 in the open position makes it easier for the user to remove a spent cartridge that is otherwise difficult to extract, where greater force is required to remove the cartridge from the chamber.
When the grenade launcher is being loaded, the latch 3 is pressed against the force of the unshown spring, causing the latch to disengage from the recess 7.
By sliding along the guide rails 2, the barrel is moved to the forward position (see Fig, 1),
A cartridge is then inserted into the rear opening of the barrel 1 . The barrel 1 is moved to the rear closed position, where the latch 3 automatically engages the recess 7 in the left guide rail 2 under the pressure of the spring, thus securing the barrel 1 and making the grenade launcher ready to fire, The shot is fired by pulling the unshown trigger, which activates the unshown trigger mechanism, After the shot is fired, the shooter presses the latch 3, thereby releasing the barrel 1 , The shooter moves the barrel 1 to the forward position so that the spent cartridge can be extracted.
When the barrel is extended to the maximum forward position, the latch 3 rests against the front of the guide rail 2 under the pressure of the spring and locks the barrel 1 in the open position. This makes it easier to extract the spent cartridge. After the latch 3 is depressed, the barrel 1 can then be moved back along the guide rails 2 to the closed position, List of reference signs
1 barrel
2 guide rail
3 latch
4 host mounting interface 5 trigger mechanism base
6 breech
7 recess
8 host assault rifle

Claims

1 , A grenade launcher having a barrel (1) which is arranged slidably relative to a trigger mechanism base (5) between a front and a rear position, the barrel (1) being locked in the rear locked position by a latch (3), characterized in that the barrel (1 ) is slidably mounted on guide rails (2), whereby the guide rails (2) are arranged on opposite sides of the trigger mechanism base (5) and the latch (3) is positioned on a side of the barrel (1) and is pushed by the force of a spring against one of the guide rails (2), the latch (3) in the locked position of the barrel (1 ) engages a recess (7) in the corresponding guide rail (2),
2. The grenade launcher according to claim 1 , characterized in that the guide rails (2) pass through longitudinal holes In the barrel (1).
3. The grenade launcher according to any one of claims 1 , 2, characterized in that the guide rails (.2) are interchangeably attached to the trigger mechanism base (5), preferably screwed.
4. The grenade launcher according to any one of claims 1 , 2, 3, characterized in that the latch (3) of the grenade launcher for right-handed persons is positioned on the left side of the barrel (1) and engages a recess (7) in the left guide rail (2).
5. The grenade launcher according to any one of claims 1: 2, 3, 4, characterized in that, in the extended position of the barrel (1), the latch (3) rests on the front of the guide rail (2) to prevent the barrel (1) from retracting spontaneously.
EP23782742.3A 2022-10-10 2023-09-13 Grenade launcher having a barrel which is arranged slidably relative to a trigger mechanism base Pending EP4602317A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CZ2022-430A CZ309730B6 (en) 2022-10-10 2022-10-10 A grenade launcher with a barrel that slides relative to the base of the trigger mechanism
PCT/CZ2023/000039 WO2024078648A1 (en) 2022-10-10 2023-09-13 Grenade launcher having a barrel which is arranged slidably relative to a trigger mechanism base

Publications (1)

Publication Number Publication Date
EP4602317A1 true EP4602317A1 (en) 2025-08-20

Family

ID=87571558

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23782742.3A Pending EP4602317A1 (en) 2022-10-10 2023-09-13 Grenade launcher having a barrel which is arranged slidably relative to a trigger mechanism base

Country Status (3)

Country Link
EP (1) EP4602317A1 (en)
CZ (1) CZ309730B6 (en)
WO (1) WO2024078648A1 (en)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3279114A (en) * 1964-09-25 1966-10-18 Colt S Inc Grenade launcher
US3365828A (en) * 1965-06-25 1968-01-30 Olin Mathieson Grenade launcher for attachment to a rifle
US3967403A (en) * 1975-01-22 1976-07-06 The United States Of America As Represented By The Secretary Of The Army Manually-operated firearm with forward-moving barrel and automatic breech lock
US7356957B1 (en) * 2006-04-11 2008-04-15 Jones C Barry Sliding barrel breeching mechanism
CO6700134A1 (en) * 2011-12-30 2013-06-28 Ind Militar Grenade launcher, related mechanisms, accessories for individual use and rifle fastening systems.
US10451381B2 (en) * 2017-07-06 2019-10-22 Airtronic Usa, Llc Adapter for coupling a grenade launcher to a handguard

Also Published As

Publication number Publication date
CZ2022430A3 (en) 2023-08-23
CZ309730B6 (en) 2023-08-23
WO2024078648A1 (en) 2024-04-18

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