EP3921588A1 - Gas piston and weapon - Google Patents
Gas piston and weaponInfo
- Publication number
- EP3921588A1 EP3921588A1 EP20700349.2A EP20700349A EP3921588A1 EP 3921588 A1 EP3921588 A1 EP 3921588A1 EP 20700349 A EP20700349 A EP 20700349A EP 3921588 A1 EP3921588 A1 EP 3921588A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- gas piston
- weapon
- gas
- piston
- spring
- 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
Links
Classifications
-
- 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
- F41A5/00—Mechanisms or systems operated by propellant charge energy for automatically opening the lock
- F41A5/18—Mechanisms or systems operated by propellant charge energy for automatically opening the lock gas-operated
-
- 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
- F41A5/00—Mechanisms or systems operated by propellant charge energy for automatically opening the lock
- F41A5/18—Mechanisms or systems operated by propellant charge energy for automatically opening the lock gas-operated
- F41A5/22—Mechanisms or systems operated by propellant charge energy for automatically opening the lock gas-operated having two or more gas pistons
Definitions
- the invention is concerned with a weapon, in particular a self-propelled weapon, such as a gas-powered weapon. Such weapons are also known as machine guns.
- the invention particularly relates to a gas piston return within the weapon.
- Fig. 1 shows a gas piston arrangement 1 with an opposed piston 2 and a gas piston 3 according to the prior art.
- the gas piston arrangement 1 is accommodated in a weapon housing 4 of a weapon 5, in particular a self-propelled weapon.
- the gas piston 3 engages a closing spring sleeve 6 of a closing spring device (not shown in detail).
- a closing spring sleeve 6 of a closing spring device (not shown in detail).
- Ver circuit which leads within the weapon housing from a front to a rear position. In the front position, the breech is locked with a gun barrel 8 of the gun; in the rear position, new ammunition is presented to the breech. This is transported by the breech into a cartridge chamber in the gun barrel.
- gas is fed into the gas piston arrangement 1 via a gas extraction hole (not shown in detail) in the weapon barrel 8 and a gas duct 7.
- the gas piston 3 is acted upon by the gas circulating around the gas piston 3.
- the gas piston 3 pushes the recoil spring sleeve 6 against the firing direction over a path W in the Kumarge housing 4.
- the recoil spring sleeve 6 takes in a known manner a slide with a bolt head (not shown). The bolt head is unlocked from the weapon barrel 8 of the weapon 5.
- the recoil spring sleeve 6 moves the recoil spring device, when it brings the bolt carrier or the breech forward in the firing direction, the recoil spring sleeve 6 strikes the stationary gas piston 3 and strikes it in the firing direction against the opposing piston 2. Due to the dynamic processes involved the closing spring sleeve 6 is accelerated in the other direction opposite to the firing direction before the breech has reached the weapon barrel 8. In practice, this process is referred to as bouncing.
- a gas-powered weapon is known from DE 10 2009 056 253 B3.
- This includes two closing spring devices on both sides of the lock.
- a rebound is prevented by the fact that a driver cam of the one closing spring device is positively and non-positively connected to this, while the connection with the other driver cam has play.
- one of the closing spring devices runs before the other on the gas piston and brakes the trailing closing spring device by reversing the movement. This prevents bouncing.
- DE 10 2009 051 300 A1 suggests incorporating a rebound barrier that is located in the rebound path of the locking slide.
- the rebound lock comprises a pawl which engages a projection of a closing spring sleeve of a closing spring device which cooperates with the locking slide.
- the object of the invention is therefore to exclude, in particular, bouncing even for weapons with limited installation space.
- the object is achieved by resetting a gas piston or the gas piston itself.
- a spring and a plunger are built into the gas piston, and that both are integrated into it. After the gas piston has been installed, the plunger is supported on or in the weapon housing.
- the gas pressure pushes the gas piston backwards and triggers or initiates the unlocking process of the locking parts.
- the internal spring of the gas piston is compressed by the plunger.
- the gas piston is pushed back into its starting position by the compressed spring when the spring force is greater than the decreasing gas pressure.
- the gas piston remains in this end position or in its starting position. This allows the locking parts to move forward unhindered. A rebound of the locking parts is prevented.
- This gas piston can be part of a gas piston arrangement with an opposed piston.
- This gas piston arrangement is used in particular in a weapon.
- the present invention is thus characterized in that, for example, an unhindered advance of the closure parts is offered with the use of a few components in a limited installation space.
- the gas piston is supplemented by a spring and a plunger. Due to the special construction of the gas piston, the gas piston can now be transferred from a working position to a rest position within the weapon. The special design of the gas piston also enables it to be retrofitted without reworking existing weapons.
- a locking ring prevents the plunger from being pushed out of the gas piston if these parts are not installed in the weapon.
- the gas piston is created as a modular assembly that can be easily pushed into the weapon housing.
- the locking ring can also be used as part of the gas piston assembly.
- the modular assembly of the gas piston or gas piston assembly does not require any rework and can be installed in existing weapons or replaced with the old solutions.
- the gas piston can in turn be designed to be extended if the installation space in the weapon housing requires this. This means that the gas piston can be extended in order to fill the installation space or the available space in the weapon housing.
- FIG. 2 shows a gas piston according to the invention as a modular assembly
- 3 shows the gas piston from FIG. 2 in the resting state
- FIG. 4 shows the gas piston from FIG. 2 in the working position.
- FIG. 2 provides for the use of a gas piston 11 which comprises a spring 12.
- a gas piston 11 which comprises a spring 12.
- This can be designed as a compression or helical compression spring.
- the gas piston 11 has a plunger 13 at a first end 11 .1, the rear end seen in the firing direction. This engages one end 12.1 of the compression spring 12. With the other end 12.2, the compression spring 12 is supported on the plunger
- a locking ring 14 is used to hold the construction or gas piston 1 1 together as a modular, unit-forming construction group.
- Fig. 3 shows a gas piston assembly 10 with the gas piston 11, installed in thesburgge housing 4. Shown is the gas piston assembly 10 in the idle state.
- the gas piston arrangement 10 comprises the opposing piston 2 and the gas piston 11 with the built-in compression spring 12 and the plunger 13.
- the plunger 13 is extended and is supported on the weapon housing 4.
- the gas piston 11 engages with the rear end 11 .1 of the recoil spring sleeve 6 of the weapon 5.
- a gas bore 2.1 in the opposed piston is directed directly at the gas piston 11.
- the gas bore 2.1 should preferably be introduced in the center of the opposing piston 2.
- the use is not limited to a self-propelled weapon if an externally rubbed weapon uses the gas pressure of the weapon for various weapon functions.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Fluid-Damping Devices (AREA)
- Toys (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102019102660.1A DE102019102660A1 (en) | 2019-02-04 | 2019-02-04 | Gas pistons and weapon |
PCT/EP2020/050256 WO2020160859A1 (en) | 2019-02-04 | 2020-01-08 | Gas piston and weapon |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3921588A1 true EP3921588A1 (en) | 2021-12-15 |
Family
ID=69156422
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20700349.2A Pending EP3921588A1 (en) | 2019-02-04 | 2020-01-08 | Gas piston and weapon |
Country Status (4)
Country | Link |
---|---|
US (1) | US11480400B2 (en) |
EP (1) | EP3921588A1 (en) |
DE (1) | DE102019102660A1 (en) |
WO (1) | WO2020160859A1 (en) |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2451624A (en) * | 1947-08-27 | 1948-10-19 | Remington Arms Co Inc | Inertia rate of fire retarders |
US3227045A (en) * | 1964-07-15 | 1966-01-04 | George R Kruzell | Closed breech rocket gun |
US4373423A (en) * | 1980-06-02 | 1983-02-15 | Moore Wildey J | Gas operated mechanism having automatic pressure regulator |
DE3337425A1 (en) | 1983-10-14 | 1985-04-25 | Rheinmetall GmbH, 4000 Düsseldorf | Locking device on an automatic gun, especially a machine gun |
DE3424761A1 (en) * | 1984-07-05 | 1986-01-16 | Gabriel, Franz | Locking system for a firearm |
US5959234A (en) | 1997-01-31 | 1999-09-28 | Benelli Armi S.P.A. | Gas-operated automatic firearm, particularly a shotgun |
IT1319535B1 (en) | 2000-12-14 | 2003-10-20 | Benelli Armi Spa | REPEAT FIREARM |
US7950178B1 (en) * | 2009-03-25 | 2011-05-31 | Ohio Ordnance Works, Inc. | Rifle striking mechanism for semi-automatic operation |
DE102009051300A1 (en) | 2009-10-29 | 2011-05-05 | Rheinmetall Waffe Munition Gmbh | Rebound lock, in particular for a gas pressure charger |
DE102009056253B3 (en) | 2009-12-01 | 2011-05-19 | Rheinmetall Waffe Munition Gmbh | Rebound barrier for gas pressure boosters in particular |
US9383149B2 (en) * | 2012-12-05 | 2016-07-05 | Ra Brands, L.L.C. | Gas-operated firearm with pressure compensating gas piston |
US10852084B2 (en) * | 2018-06-15 | 2020-12-01 | Michael Gregorich | Advanced gas piston system |
-
2019
- 2019-02-04 DE DE102019102660.1A patent/DE102019102660A1/en active Pending
-
2020
- 2020-01-08 US US17/425,421 patent/US11480400B2/en active Active
- 2020-01-08 EP EP20700349.2A patent/EP3921588A1/en active Pending
- 2020-01-08 WO PCT/EP2020/050256 patent/WO2020160859A1/en unknown
Also Published As
Publication number | Publication date |
---|---|
DE102019102660A1 (en) | 2020-08-06 |
US20220187037A1 (en) | 2022-06-16 |
US11480400B2 (en) | 2022-10-25 |
WO2020160859A1 (en) | 2020-08-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: UNKNOWN |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
17P | Request for examination filed |
Effective date: 20210628 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
RAP3 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: RHEINMETALL WAFFE MUNITION GMBH |
|
DAV | Request for validation of the european patent (deleted) | ||
DAX | Request for extension of the european patent (deleted) |