WO2004033981A2 - Barrel latch locking device - Google Patents
Barrel latch locking device Download PDFInfo
- Publication number
- WO2004033981A2 WO2004033981A2 PCT/US2003/032312 US0332312W WO2004033981A2 WO 2004033981 A2 WO2004033981 A2 WO 2004033981A2 US 0332312 W US0332312 W US 0332312W WO 2004033981 A2 WO2004033981 A2 WO 2004033981A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- barrel
- locking device
- barrel latch
- latch
- receiver
- Prior art date
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
- F41A21/00—Barrels; Gun tubes; Muzzle attachments; Barrel mounting means
- F41A21/48—Barrel mounting means, e.g. releasable mountings for replaceable barrels
-
- 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
Definitions
- the present invention generally relates to safety devices for firearms, more particularly, to a barrel latch locking mechanism for a grenade launcher barrel latch.
- Modular weapon systems are well know, perhaps best exemplified by the tactile or assault weapon wherein a host weapon, most commonly a rifle, is readily modified to receive, among other things, a supplemental device, for instance, a grenade launcher.
- a host weapon most commonly a rifle
- a supplemental device for instance, a grenade launcher.
- safe, reliable weapon operation is especially paramount.
- An exemplary launcher for discussion is the Colt® M203 grenade launcher, a lightweight, single-shot, breech-loaded 40mm weapon designed especially for attachment to the M4 carbine and the M16A2/A4 rifle. It creates a versatile combination weapon system capable of single round firing both 5.56mm rifle ammunition as well as the complete range of 40mm high explosive and special purpose ammunition.
- This launcher, as well as other commercially available launchers is readily adapted, for instance via use of a variety of known rail attachment systems and the like, for receipt by various host weapons, e.g., submachine gun, shotgun or folding-stock pistol frame as a mounting platform, in addition to the M4 and M16A2/A4.
- Launchers generally include a barrel, a receiver, a modified hand guard, a site (e.g., a leaf or quadrant site), and a rail, interbar or pistol frame.
- a complete self-cocking firing mechanism including a barrel latch, a trigger and positive safety lever, is integral to the receiver, allowing the launcher to be operated, not only as a supplemental device, but as a completely independent weapon.
- the barrel latch of the launcher is optimally positioned upon the receiver so as to be within ready reach when gripping the launcher barrel about the handguard (i.e., while supporting the launcher, or entire weapon system as the case may be, as by cradling same with the familiar palm-up hand cupping posture) .
- the barrel latch Upon actuation of the barrel latch, the barrel is free to slide forward upon the receiver so as to accept a round of ammunition, or discharge a casing, and thereafter return to a closed, auto-locking position, ready to fire.
- a barrel latch locking device for a grenade launcher barrel latch includes a body having opposing end portions, a first opposing end portion of the body including a locking plate.
- the locking device is adapted to be secured to a grenade launcher receiver proximal to the grenade launcher barrel latch for translation with respect thereto.
- the arrangement is such that a portion of the locking plate intercepts a travel path for the grenade launcher barrel latch, thereby preventing disengagement of a grenade launcher barrel from the grenade launcher receiver via unintentional actuation of the grenade launcher barrel latch.
- FIG. 1 generally illustrates a weapon system, namely an Ml6 rifle equipped with a grenade launcher, the barrel latch locking device of the subject invention affixed to a receiver of the launcher and in operative engagement with the barrel latch thereof (i.e., "lock-on”) ;
- FIG. 2 is a sectional view taken along line 2-2 of FIG. 1 illustrating the interrelationships between components of the subject barrel latch locking device and the barrel latch;
- FIG. 3 is a detailed view of the circumscribed area of
- FIG. 1 illustrating a portion of the barrel latch received upon a latch receiving surface of the subject device
- FIG. 4 is a view similar to that of FIG. 2, the subject barrel latch locking device disengaged from the barrel latch
- lock-off (i.e., "lock-off")
- the barrel latch locking device 14 is shown affixed to a receiver 16 of the launcher 10, and in operative engagement with a barrel latch 18 thereof (i.e., a "lock-on" condition) . It is to be understood that the barrel latch locking device of the subject invention is not limited to operative engagement with the launcher of FIG. 1.
- the grenade launcher 10 generally includes a barrel 20 supported, suspended, or otherwise engaged with the receiver 16 thereof.
- a handguard 22 substantially extends about a portion of the exterior surface 24 of the barrel 20.
- the launcher 10, more particularly the receiver 16, further includes, a firing mechanism 26 comprising the barrel latch 18, trigger 28, and trigger safety 30.
- the barrel 20 of the launcher 10 is disengagable from the receiver 16, more particularly a breech end 32 thereof, for translation with respect thereto, in furtherance of loading a munition, and/or discharging a casing of a munition.
- the subject barrel latch locking device 14 is adapted to be secured to the launcher receiver 16 proximal to the launcher barrel latch 18, for translation with respect thereto, such that a latch receiving surface 34 thereof selectively intercepts a travel path for the launcher barrel latch 18, thereby preventing disengagement of the launcher barrel 20 from the launcher receiver 16 via unintended actuation of the launcher barrel latch 18.
- the barrel latch 18 of the grenade launcher 10 generally comprises an elongate member (e.g., a bar) 40 having a latch or latching surface 42 opposite a free end 44 thereof, the latch surface 42 intended to selectively engage a portion (e.g., a stop) 46 of the launcher barrel 20, as shown.
- the barrel latch 18 is pivotably secured by a shaft or pin 48, between its ends, to the launcher receiver 16 such that a portion of the free end 44 (i.e., an actuation surface 50) outwardly projects from a lateral surface (e.g., a sidewall) 52 of the receiver 16 (i.e., the actuation surface 50 is accessible for manipulation of the latch 18) .
- Pivoting of the barrel latch 18 about a pivot axis of the shaft 48 as by "pushing" the actuation surface 50 of the free end 44 into closer proximity to the sidewall 52 of the launcher receiver 16, frees the latch surface 42 from engagement with the stop 46 of the launcher barrel 20 (note ghost lines indicating a disengaged condition for the barrel latch 18), thereby permitting translation of the barrel 20 relative to the receiver 16.
- the barrel latch locking device generally comprises a body 60 having opposing end portions, more particularly, first 62 and second 64 opposing end portions, for the sake of convention, muzzle and breech end portions respectively, the first opposing end portion 62 of the body 60 being "forward" of the second opposing end portion 64.
- the device body 60 further, and generally, includes opposing surfaces, namely, first 66 (i.e., visible) and second 68 (i.e., non-visible) surfaces, see e.g., FIG. 2.
- Each opposing end portion 62, 64 of the device body 60 preferably includes an aperture or slot 70 to facilitate affixation and retention of the device 14 to the launcher receiver 16, using, as shown, shouldered fasteners 72, or the like.
- the second surface 68 of the device body 60 will be, or is, adjacent the sidewall 52 of the receiver 16, more particularly, an exterior surface of same, see e.g., FIG. 2.
- the apertures 70 are advantageously configured to permit translation of the locking device 14 upon the fasteners 72, and thereby the receiver 16, namely, between the lock-on (FIG. and lock-off configurations of FIGS. 2 & 4 respectively.
- One such non-limiting aperture configuration, namely an oval, is shown in FIG. 3, a maximum dimension thereof extending between the opposing end portions 62,64 of the device body 60.
- the first opposing end portion 62 of the device body 60 generally includes a locking plate or blade 74 having a first surface, more particularly, a visible latch receiving surface 76 adapted to operatively engage the free end 44 of the barrel latch 18.
- a second, non-visible surface 78 of the locking plate 74 (see e.g., FIGS. 2 & 4), opposite the first surface 76, is adapted to seat a detent 80 (e.g., a pin or ball) carried by the sidewall 52 of the receiver 16.
- the non-visible surface 78 of the locking plate 74 includes a pair of spaced apart dimples 82 for receipt and seating of the detent 80 at either a first 84 (FIG. 2) or second 86 (FIG. 4) position of the second surface 78 of the locking plate 74, that is to say, the lock-on and lock-off positions respectively.
- the latch receiving surface 76 preferably, but not necessarily, includes a ramped (e.g., beveled) portion so as to provide a sure interference fit for the locking device 14 relative to the barrel latch 18.
- the ramped portion of the latch receiving surface 76 may be effectively wedged between the free end 44 of the barrel latch 18 and the sidewall 52 of the receiver 16 to prohibit actuation of the barrel latch 18.
- the second opposing end portion 64 of the device body 60 preferably, as shown, has a segment configured so as to define a finger rest or grip 88.
- the second opposing end portion 64 of the device body 60 is to include a structure to facilitate translation (i.e., actuation) of the device 14 between the lock-on/lock-off conditions of FIGS. 2 & 4 respectively.
- the subject disclosure is in no way intended to be limiting of the means available to perform the recited function.
- the second opposing end portion 64 of the device body 60 may include a protuberance or the like, integral therewith (e.g., a ridge), or attachable thereto (e.g., a knob) .
- a terminal end 90 of the second opposing end portion 64 of the device body 60 is configured to include a curve, bend, fold, crease, etc.
- the terminal end 90 is not planar, or alternately stated, a substantial portion of the non-visible surface of the terminal end 90 of the second opposing end portion 64 does not contact the receiver sidewall 52.
- a not insubstantial amount of force must be imparted to the second opposing end portion 64 of the device body 60 so as to overcome the detent positioning of the device 14 relative to the receiver 16, whether in the lock-on or lock-off position/condition.
- a finger rest or hold 88 of large surface area is advantageous, and therefore desirable.
- FIGS. 2 & 4 Operation of the subject device is best appreciated by comparison of FIGS. 2 & 4.
- the latch receiving surface 76 of the locking plate 74 is interposed between a portion of the free end 44 of the elongate member 40 of the barrel latch 18, and the sidewall 52 of the launcher receiver 16, and operatively retained in such condition due to receipt of the receiver detent 80 in the forward most dimple 82 of the non-visible surface 78 of the locking plate 74. Pivot motion of the barrel latch 18, and disengagement of the barrel 20 relative to the receiver 16 thereby, is prohibited.
- an operator need only apply forward pressure to the finger hold or rest 88 of the second opposing end portion 64 of the device body 60, so as to overcome the bias force of the detent 80 within the forward most dimple 82 of the non-visible surface 78 of the locking plate 74.
- the subject locking device 14 forwardly slides such that the latch receiving surface 76 of the locking plate 74 is "clear" of the travel path of the free end 44 of the barrel latch 18, the detent 80, seated in the rearward dimple 82, retaining the device body 60 in the lock-off position.
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BR0314553-0A BR0314553A (en) | 2002-10-10 | 2003-10-10 | Drum Locking Device |
CA2502291A CA2502291C (en) | 2002-10-10 | 2003-10-10 | Barrel latch locking device |
EP03776323.2A EP1556660B1 (en) | 2002-10-10 | 2003-10-10 | Safety for a grenade launchr barrel latch |
US10/530,732 US7328530B2 (en) | 2002-10-10 | 2003-10-10 | Barrel latch locking device |
AU2003284092A AU2003284092B8 (en) | 2002-10-10 | 2003-10-10 | Barrel latch locking device |
US12/029,974 US7891130B2 (en) | 2002-10-10 | 2008-02-12 | Barrel latch locking device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US41749102P | 2002-10-10 | 2002-10-10 | |
US60/417,491 | 2002-10-10 |
Related Child Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/530,732 A-371-Of-International US7328530B2 (en) | 2002-10-10 | 2003-10-10 | Barrel latch locking device |
US12/029,974 Continuation US7891130B2 (en) | 2002-10-10 | 2008-02-12 | Barrel latch locking device |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2004033981A2 true WO2004033981A2 (en) | 2004-04-22 |
WO2004033981A3 WO2004033981A3 (en) | 2005-05-12 |
Family
ID=32094027
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2003/032312 WO2004033981A2 (en) | 2002-10-10 | 2003-10-10 | Barrel latch locking device |
Country Status (6)
Country | Link |
---|---|
US (2) | US7328530B2 (en) |
EP (1) | EP1556660B1 (en) |
AU (1) | AU2003284092B8 (en) |
BR (1) | BR0314553A (en) |
CA (1) | CA2502291C (en) |
WO (1) | WO2004033981A2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT503135B1 (en) * | 2006-03-16 | 2007-08-15 | Rotay Marketing Consulting Nfg | Launching device for grenades, has grenade launcher with rapid-firing weapon, which has housing, and drawing is provided with handle, which is integrated with control unit |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8051595B2 (en) * | 2004-06-16 | 2011-11-08 | Colt Defense, Llc | Automatic or semi-automatic rifle |
WO2010123605A2 (en) * | 2009-01-28 | 2010-10-28 | Daniel Defense, Inc. | Handguard assembly and stanag mount adapter assembly |
US8397414B2 (en) * | 2010-05-20 | 2013-03-19 | Ian Thomas Walters | Buttstock pre-adjustment block |
WO2012099876A1 (en) * | 2011-01-17 | 2012-07-26 | RM Equipment, Inc. | Device for profile rail attachment |
US9404714B2 (en) | 2011-05-02 | 2016-08-02 | Colt's Manufacturing Ip Holding Company Llc | Modular rail system and firearm with modular rail system |
US8991091B2 (en) | 2013-01-14 | 2015-03-31 | RM Equipment, Inc. | Universal launcher system |
CN104482801B (en) * | 2014-11-05 | 2016-02-24 | 重庆建设工业(集团)有限责任公司 | A kind of firearm frames |
WO2016089863A2 (en) * | 2014-12-01 | 2016-06-09 | Wilcox Industries Corp. | Modular grenade launcher system |
US9464866B1 (en) * | 2015-10-16 | 2016-10-11 | Vega Force International Corp. | Toy gun assembly structure |
US10113825B2 (en) * | 2016-05-10 | 2018-10-30 | Kudzu Arms, Llc | Systems and methods for attaching a secondary firearm to a primary firearm |
US10234222B2 (en) * | 2016-08-09 | 2019-03-19 | Gonzalo Couce | Single 40 mm projectile launcher |
US10119781B1 (en) | 2017-05-08 | 2018-11-06 | Wilcox Industries Corp. | Grenade launcher and pivot mechanism for same |
US11187474B2 (en) * | 2018-01-09 | 2021-11-30 | William E. Masters | Compact shotgun, multipurpose mount, and trigger assembly |
US11035646B2 (en) | 2018-12-21 | 2021-06-15 | Wilcox Industries Corp. | Grenade launcher with modular interface |
US20220290940A1 (en) * | 2019-11-22 | 2022-09-15 | Bahtiyar Tasyagan | Rapid removal-installation mechanism for firearm barrels |
US11543194B2 (en) * | 2020-10-07 | 2023-01-03 | Rory Berger | Projectile launcher with barrel breech lock mechanism |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2981154A (en) * | 1960-01-07 | 1961-04-25 | Aircraft Armaments Inc | Safety interlock for machine gun barrel |
US3034407A (en) * | 1961-04-20 | 1962-05-15 | Darsie Burns | Barrel safety latch |
US3365828A (en) * | 1965-06-25 | 1968-01-30 | Olin Mathieson | Grenade launcher for attachment to a rifle |
US3332162A (en) * | 1965-12-22 | 1967-07-25 | Honeywell Inc | Combined rifle and grenade launcher |
US3507067A (en) * | 1967-12-14 | 1970-04-21 | Colt S Inc | Grenade launcher having a rotatable forwardly sliding barrel and removable firing mechanism |
US3561149A (en) * | 1968-10-09 | 1971-02-09 | Warren A Center | Pistol with means actuating the barrel latch and setting the trigger mechanism and safety |
US3557482A (en) * | 1969-02-04 | 1971-01-26 | Us Army | Means for controlling the headspacing of grenade cartridges in a single-shot launcher |
US3641691A (en) * | 1969-05-21 | 1972-02-15 | Us Army | Grenade launcher with pivotally mounted barrel |
DE1944625C3 (en) * | 1969-09-03 | 1973-01-04 | Heckler & Koch Gmbh, 7238 Oberndorf | Grenade launcher attachable to a handgun |
US3967402A (en) * | 1975-01-22 | 1976-07-06 | The United States Of America As Represented By The Scretary Of The Army | Manually-operated firearm with forward-moving barrel and pivoted breech block |
US4689911A (en) * | 1984-06-04 | 1987-09-01 | Napco Industries, Inc. | Grenade launcher attachment for infantry weapon |
US4733489A (en) * | 1984-11-14 | 1988-03-29 | R/M Equipment, Inc. | Apparatus for reconfiguring automatic rifle to include grenade launching function |
US4833970A (en) * | 1987-08-31 | 1989-05-30 | Gary Wilhelm | Submachine gun |
FR2734629B1 (en) * | 1995-05-23 | 1997-07-25 | Giat Ind Sa | PORTABLE FIREARMS ACCESSORY |
KR100535937B1 (en) * | 1997-09-11 | 2006-06-13 | 알/엠 이큅먼트 인코포레이티트 | Method and apparatus for attaching a supplemental device to a minimally altered host firearm |
DE19925864C1 (en) * | 1999-06-07 | 2000-08-10 | Heckler & Koch Gmbh | Grenade launcher for fixture to rifle has launching barrel pivotable around static cross axis near to mouth, with base housing supporting trigger mechanism |
US6397505B1 (en) * | 1999-12-02 | 2002-06-04 | Virgin Valley Custom Guns, Llc | Cartridge casing ejector for a firearm |
-
2003
- 2003-10-10 US US10/530,732 patent/US7328530B2/en not_active Expired - Fee Related
- 2003-10-10 BR BR0314553-0A patent/BR0314553A/en not_active Application Discontinuation
- 2003-10-10 CA CA2502291A patent/CA2502291C/en not_active Expired - Fee Related
- 2003-10-10 AU AU2003284092A patent/AU2003284092B8/en not_active Ceased
- 2003-10-10 EP EP03776323.2A patent/EP1556660B1/en not_active Expired - Lifetime
- 2003-10-10 WO PCT/US2003/032312 patent/WO2004033981A2/en not_active Application Discontinuation
-
2008
- 2008-02-12 US US12/029,974 patent/US7891130B2/en active Active
Non-Patent Citations (2)
Title |
---|
None |
See also references of EP1556660A4 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT503135B1 (en) * | 2006-03-16 | 2007-08-15 | Rotay Marketing Consulting Nfg | Launching device for grenades, has grenade launcher with rapid-firing weapon, which has housing, and drawing is provided with handle, which is integrated with control unit |
Also Published As
Publication number | Publication date |
---|---|
EP1556660A2 (en) | 2005-07-27 |
AU2003284092B2 (en) | 2009-11-19 |
EP1556660B1 (en) | 2013-08-07 |
BR0314553A (en) | 2005-08-23 |
US7328530B2 (en) | 2008-02-12 |
WO2004033981A3 (en) | 2005-05-12 |
AU2003284092B8 (en) | 2010-03-18 |
US7891130B2 (en) | 2011-02-22 |
CA2502291C (en) | 2011-05-17 |
EP1556660A4 (en) | 2010-08-04 |
CA2502291A1 (en) | 2004-04-22 |
AU2003284092A1 (en) | 2004-05-04 |
US20110016765A1 (en) | 2011-01-27 |
US20060201044A1 (en) | 2006-09-14 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US7891130B2 (en) | Barrel latch locking device | |
US8615915B2 (en) | Bullpup conversion kit for firearm | |
US9784518B2 (en) | Trigger mechanism with momentary automatic safety | |
US6553706B1 (en) | Sear and step trigger assembly having a secondary sear block | |
US6481145B2 (en) | Grenade launcher | |
US7421937B1 (en) | Modular insertion trigger method and apparatus | |
US8161861B2 (en) | Battery assist device | |
US10724814B2 (en) | Handgun safety mechanism | |
US6782791B2 (en) | Semiautomatic or automatic gun | |
US20180135929A1 (en) | Trigger mechanism for a firearm | |
US9341442B1 (en) | Knife mount for a firearm | |
US9500421B1 (en) | Firearm charging handle | |
US20120167424A1 (en) | Ambidextrously operated bolt catch assembly | |
US20060123683A1 (en) | Ambidextrous magazine catch for firearms | |
EP2141439A2 (en) | Firearm having a ejection port shield | |
US20230392886A1 (en) | Takedown lever, takedown safety, and trigger shoe | |
US20200248978A1 (en) | Firearm and methods for operation and manufacture thereof | |
WO2014207586A1 (en) | Tactical telescoping shotgun | |
WO2018023076A1 (en) | Dual firearm gunstock holstering | |
US20200132405A1 (en) | Trigger Mechanism For A Firearm | |
US7757420B1 (en) | Integrated firearm security lock | |
US20170307314A1 (en) | Modified break-action firearm | |
US11656047B1 (en) | Chamber flag | |
US10890396B2 (en) | Slotted trigger actuation | |
US20230235982A1 (en) | Trigger Return And Safety Mechanism |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A2 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A2 Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LU MC NL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWE | Wipo information: entry into national phase |
Ref document number: 2502291 Country of ref document: CA |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2003284092 Country of ref document: AU |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2003776323 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 05043929 Country of ref document: CO |
|
WWP | Wipo information: published in national office |
Ref document number: 2003776323 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 10530732 Country of ref document: US |
|
NENP | Non-entry into the national phase |
Ref country code: JP |
|
WWW | Wipo information: withdrawn in national office |
Ref document number: JP |
|
WWP | Wipo information: published in national office |
Ref document number: 10530732 Country of ref document: US |