US20130118343A1 - Firearm actuation system - Google Patents
Firearm actuation systemDownload PDFInfo
- Publication number
- US20130118343A1 US20130118343A1US13/679,966US201213679966AUS2013118343A1US 20130118343 A1US20130118343 A1US 20130118343A1US 201213679966 AUS201213679966 AUS 201213679966AUS 2013118343 A1US2013118343 A1US 2013118343A1
- Authority
- US
- United States
- Prior art keywords
- assembly
- hammer
- firearm
- actuation system
- bolt carrier
- 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.)
- Abandoned
Links
- 238000010304firingMethods0.000claimsabstractdescription22
- 238000006073displacement reactionMethods0.000claimsdescription9
- 230000000994depressogenic effectEffects0.000description5
- 230000000881depressing effectEffects0.000description3
- 230000008901benefitEffects0.000description2
- 230000001351cycling effectEffects0.000description1
- 230000004048modificationEffects0.000description1
- 238000012986modificationMethods0.000description1
Images
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
- F41A19/00—Firing or trigger mechanisms; Cocking mechanisms
- F41A19/06—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms
- 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
- F41A3/26—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 semi-automatically or automatically operated, e.g. having a slidable bolt-carrier and a rotatable bolt
- 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
- F41A19/00—Firing or trigger mechanisms; Cocking mechanisms
- F41A19/06—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms
- F41A19/42—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms having at least one hammer
- F41A19/43—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms having at least one hammer in bolt-action guns
- F41A19/44—Sear arrangements 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
- F41A19/00—Firing or trigger mechanisms; Cocking mechanisms
- F41A19/06—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms
- F41A19/42—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms having at least one hammer
- F41A19/43—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms having at least one hammer in bolt-action guns
- F41A19/46—Arrangements for the selection of automatic or semi-automatic fire
Definitions
- This disclosurerelates to firearms and, more particularly, to fully automatic firearms.
- firearmsare available in various configurations such as semiautomatic fire, fully automatic fire, and select fire.
- semiautomatic firearmsmay fire a single round each time the trigger is depressed.
- Fully automatic firearmsmay repeatedly fire rounds whenever the trigger is depressed and held in a depressed position.
- select fire firearmsmay fire a defined quantity of rounds (e.g. three rounds) each time the trigger is depressed.
- Firearmsoften employee some form of auto sear to accomplish select fire and fully automatic operation.
- an auto searmay be used to release the hammer and strike the firing pin each time a round is chambered within the firearm.
- AR platform firearmi.e., designed by Eugene Stoner and originally produced by ArmaLite.
- the AR platform firearmutilizes such an auto sear to accomplish such select fire and fully automatic operation.
- the standard AR platform firearmuses a bolt carrier assembly to directly actuate the auto sear, resulting in the bolt carrier assembly cycling into and out of the stock assembly during operation. Accordingly, a folding stock assembly may not be used on a standard AR platform firearm.
- an actuation systemincludes a bolt carrier assembly configured for use within a firearm, the bolt carrier assembly including a firing pin configured for striking a chambered round.
- a hammer assemblyis configured for striking the firing pin of the bolt carrier assembly.
- An auto sear assemblyis configured to actuate the hammer assembly during operation of the firearm.
- a linkage assemblyis configured to couple the bolt carrier assembly and the auto sear assembly and effectuate the auto sear assembly actuating the hammer assembly.
- the auto sear assemblymay be further configured to cyclically hold the hammer assembly in a cocked position and cyclically release the hammer from the cocked position during operation of the firearm.
- the hammer assemblymay be configured to releasably engage the auto sear and effectuate the cyclical holding of the hammer assembly in the cocked position and the cyclical releasing of the hammer from the cocked position during operation of the firearm.
- the bolt carrier assemblymay be configured to be cyclically longitudinally displaced during operation of the firearm.
- the linkage assemblymay be configured to be cyclically longitudinally displaced in response to the cyclical longitudinal displacement of the bolt carrier assembly.
- the linkage assemblymay be configured to be cyclically longitudinally displaced within an upper receiver assembly of the firearm.
- the upper receiver assemblymay be configured to releasably engage a lower receiver assembly.
- the lower receiver assemblymay be an AR platform lower receiver assembly.
- an actuation systemin another implementation, includes a bolt carrier assembly configured for use within a firearm, the bolt carrier assembly including a firing pin configured for striking a chambered round and configured to be cyclically longitudinally displaced during operation of the firearm.
- a hammer assemblyis configured for striking the firing pin of the bolt carrier assembly.
- An auto sear assemblyis configured to actuate the hammer assembly during operation of the firearm and cyclically hold the hammer assembly in a cocked position and cyclically release the hammer from the cocked position during operation of the firearm.
- a linkage assemblyis configured to couple the bolt carrier assembly and the auto sear assembly and effectuate the auto sear assembly actuating the hammer assembly.
- the hammer assemblymay be configured to releasably engage the auto sear and effectuate the cyclical holding of the hammer assembly in the cocked position and the cyclical releasing of the hammer from the cocked position during operation of the firearm.
- the linkage assemblymay be configured to be cyclically longitudinally displaced in response to the cyclical longitudinal displacement of the bolt carrier assembly.
- the linkage assemblymay be configured to be cyclically longitudinally displaced within an upper receiver assembly of the firearm.
- the upper receiver assemblymay be configured to releasably engage a lower receiver assembly.
- the lower receiver assemblymay be an AR platform lower receiver assembly.
- an actuation systemin another implementation, includes a bolt carrier assembly configured for use within a firearm, the bolt carrier assembly including a firing pin configured for striking a chambered round.
- a linkage assemblyis configured to couple the bolt carrier assembly to an auto sear assembly.
- the bolt carrier assemblymay be configured to be cyclically longitudinally displaced during operation of the firearm.
- the linkage assemblymay be configured to be cyclically longitudinally displaced in response to the cyclical longitudinal displacement of the bolt carrier assembly.
- the linkage assemblymay be configured to be cyclically longitudinally displaced within an upper receiver assembly of the firearm.
- the upper receiver assemblymay be configured to releasably engage a lower receiver assembly.
- the lower receiver assemblymay be an AR platform lower receiver assembly.
- the lower receiver assemblymay include a hammer assembly configured for striking the firing pin of the bolt carrier assembly and the auto sear assembly.
- the auto sear assemblymay be configured to actuate the hammer assembly during operation of the firearm.
- the linkage assemblymay be configured to effectuate the auto sear assembly actuating the hammer assembly.
- the auto sear assemblymay be further configured to cyclically hold the hammer assembly in a cocked position and cyclically release the hammer from the cocked position during operation of the firearm.
- the hammer assemblymay be configured to releasably engage the auto sear and effectuate the cyclical holding of the hammer assembly in the cocked position and the cyclical releasing of the hammer from the cocked position during operation of the firearm.
- FIG. 1is a diagrammatic view of a firearm according to an implementation of the present disclosure
- FIG. 2is a diagrammatic view of an upper receiver assembly of the firearm of FIG. 1 according to an implementation of the present disclosure
- FIG. 3is a diagrammatic view of a lower receiver assembly of the firearm of FIG. 1 according to an implementation of the present disclosure
- FIGS. 4R & 4Lare diagrammatic views of components of the firearm of FIG. 1 according to an implementation of the present disclosure
- FIGS. 5R & 5Lare diagrammatic views of components of the firearm of FIG. 1 according to an implementation of the present disclosure.
- FIGS. 6R & 6Lare diagrammatic views of components of the firearm of FIG. 1 according to an implementation of the present disclosure.
- Firearm 10may include upper receiver assembly 12 and lower receiver assembly 14 .
- Upper receiver assembly 12may be configured to releasably engage lower receiver assembly 14 .
- An example of lower receiver assembly 14may include but is not limited to an AR platform lower receiver assembly.
- Upper receiver assembly 12may include barrel assembly 16 , gas block assembly 18 , gas piston system 20 , charging handle 22 , bolt carrier assembly 24 , and spring assembly 26 for biasing bolt carrier assembly 24 in the direction of arrow 28 to chamber a bullet (not shown) within chamber 30 .
- Lower receiver assembly 14may include trigger assembly 32 , disconnector assembly 34 , grip assembly 36 , hammer assembly 38 , fire selector switch 40 (e.g., to select between semi-automatic operation, fully-automatic operation, and safety), and auto sear assembly 42 .
- bolt carrier assembly 24may be longitudinally displaced (in the direction of arrow 46 ), resulting in hammer assembly 38 being rotationally displaced (in the direction of arrow 48 ) about pivot point 50 into the cocked position.
- hook 52 of disconnector assembly 34may releasably engage first hook 54 on hammer assembly 38 .
- Hammer assembly 38will remain in this cocked position until a user of firearm 10 depresses trigger assembly 32 into the fire position (i.e., in the direction of arrow 56 ). Upon depressing trigger assembly 32 , disconnector assembly 34 will disengage from hammer assembly 38 .
- Hammer assembly 38may include spring assembly 55 for biasing hammer assembly 38 in the opposite direction of arrow 48 (namely into the upright position and in contact with bolt carrier assembly 24 ).
- hammer assembly 38may be released from disconnector assembly 34 and hammer assembly 38 may pivot about pivot point 50 (in the direction opposite of arrow 48 ) and may strike firing pin 58 , which longitudinally passes through bolt carrier assembly 24 and strikes a chambered round (not shown), resulting in the discharge of bullet 44 .
- Actuation system 60may include bolt carrier assembly 24 (including firing pin 58 configured for striking a chambered round, not shown). Actuation system 60 may also include hammer assembly 38 , which (as discussed above) is configured for striking firing pin 58 of bolt carrier assembly 24 . Actuation system 60 may also include auto sear assembly 62 that may be configured to actuate hammer assembly 38 during operation of firearm 10 . Actuation system 60 may also include linkage assembly 64 that may be configured to couple bolt carrier assembly 24 and auto sear assembly 62 and effectuate auto sear assembly 62 actuating hammer assembly 38 .
- auto sear assembly 62may be configured to cyclically hold hammer assembly 38 in a cocked position (in the direction of arrow 48 ) and cyclically release hammer 38 from the cocked position (so that it moves in the directions opposite of arrow 48 ) during operation of firearm 10 .
- bolt carrier assembly 24may be longitudinally displaced (in the direction of arrow 46 ), resulting in hammer assembly 38 being rotationally displaced (in the direction of arrow 48 ) about pivot point 50 into the above-described cocked position.
- hook 52 of disconnector assembly 34may releasably engage first hook 54 on hammer assembly 38 (provided that trigger assembly 32 is not depressed in the direction of arrow 56 ).
- disconnector assembly 34may disengage from hammer assembly 38 and hammer assembly 38 may pivot about pivot point 50 (in the direction opposite of arrow 48 ) and may strike firing pin 58 , which longitudinally passes through bolt carrier assembly 24 and strikes a chambered round (not shown), resulting in the discharge of bullet 44 .
- firearm 10may repeatedly fire (i.e., discharge) in an automated fashion until the user releases trigger assembly 32 .
- disconnector assembly 34will be displaced and, thus, prevented from engaging hammer assembly 38 .
- second hook 66 on hammer assembly 38may engage lower edge 68 of auto sear assembly 62 , thus locking hammer assembly 38 in the cocked position (at least temporarily).
- bolt carrier assembly 24is cyclically longitudinally displaced in the direction of arrow 46 and arrow 28 . Accordingly, once travel of bolt carrier assembly 24 in the direction of arrow 46 is complete, bolt carrier assembly 24 will be displaced in the direction of arrow 28 (e.g., due to the bias of spring assembly 26 ).
- linkage assembly 64may be configured to couple bolt carrier assembly 24 and auto sear assembly 62 and effectuate auto sear assembly 62 actuating hammer assembly 38 .
- forward portion 70 of linkage assembly 64may be configured to slidably engage bolt carrier assembly 24 , wherein displacement of bolt carrier assembly 24 in the direction of arrow 28 may result in displacement of linkage assembly 64 in the direction of arrow 28 .
- linkage assembly 64may be configured to be cyclically longitudinally displaced within upper receiver assembly 12 in response to the cyclical longitudinal displacement of bolt carrier assembly 24 .
- linkage assembly 64may engage upper edge 74 of auto sear assembly 62 , resulting in auto sear assembly 62 pivoting in the direction of arrow 76 and the disengagement of second hook 66 of hammer assembly 38 and lower edge 68 of auto sear assembly 62 .
- spring assembly 55may bias hammer assembly 38 in the opposite direction of arrow 48 (namely into the upright position and in contact with bolt carrier assembly 24 ), thus resulting in the striking of firing pin 58 and the discharge of bullet 44 .
- hammer assembly 38may be configured to releasably engage auto sear 62 and effectuate the cyclical holding of hammer assembly 38 in the cocked position and the cyclical releasing of hammer 38 from the cocked position during fully-automatic operation of firearm 10 .
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Electrophonic Musical Instruments (AREA)
- Toys (AREA)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Abstract
Description
- This application claims the benefit of U.S. Provisional Application No. 61/560,435, filed on 16 Nov. 2011, the contents of which are herein incorporated by reference.
- This disclosure relates to firearms and, more particularly, to fully automatic firearms.
- As is known in the art, firearms are available in various configurations such as semiautomatic fire, fully automatic fire, and select fire. As their name implies, semiautomatic firearms may fire a single round each time the trigger is depressed. Fully automatic firearms may repeatedly fire rounds whenever the trigger is depressed and held in a depressed position. And select fire firearms may fire a defined quantity of rounds (e.g. three rounds) each time the trigger is depressed.
- Firearms often employee some form of auto sear to accomplish select fire and fully automatic operation. For example, during select fire and fully automatic operation, an auto sear may be used to release the hammer and strike the firing pin each time a round is chambered within the firearm.
- One popular type of weapon is the AR platform firearm (i.e., designed by Eugene Stoner and originally produced by ArmaLite). The AR platform firearm utilizes such an auto sear to accomplish such select fire and fully automatic operation. Unfortunately, the standard AR platform firearm uses a bolt carrier assembly to directly actuate the auto sear, resulting in the bolt carrier assembly cycling into and out of the stock assembly during operation. Accordingly, a folding stock assembly may not be used on a standard AR platform firearm.
- In one implementation, an actuation system includes a bolt carrier assembly configured for use within a firearm, the bolt carrier assembly including a firing pin configured for striking a chambered round. A hammer assembly is configured for striking the firing pin of the bolt carrier assembly. An auto sear assembly is configured to actuate the hammer assembly during operation of the firearm. A linkage assembly is configured to couple the bolt carrier assembly and the auto sear assembly and effectuate the auto sear assembly actuating the hammer assembly.
- One or more of the following features may be included. The auto sear assembly may be further configured to cyclically hold the hammer assembly in a cocked position and cyclically release the hammer from the cocked position during operation of the firearm. The hammer assembly may be configured to releasably engage the auto sear and effectuate the cyclical holding of the hammer assembly in the cocked position and the cyclical releasing of the hammer from the cocked position during operation of the firearm. The bolt carrier assembly may be configured to be cyclically longitudinally displaced during operation of the firearm. The linkage assembly may be configured to be cyclically longitudinally displaced in response to the cyclical longitudinal displacement of the bolt carrier assembly.
- The linkage assembly may be configured to be cyclically longitudinally displaced within an upper receiver assembly of the firearm. The upper receiver assembly may be configured to releasably engage a lower receiver assembly. The lower receiver assembly may be an AR platform lower receiver assembly.
- In another implementation, an actuation system includes a bolt carrier assembly configured for use within a firearm, the bolt carrier assembly including a firing pin configured for striking a chambered round and configured to be cyclically longitudinally displaced during operation of the firearm. A hammer assembly is configured for striking the firing pin of the bolt carrier assembly. An auto sear assembly is configured to actuate the hammer assembly during operation of the firearm and cyclically hold the hammer assembly in a cocked position and cyclically release the hammer from the cocked position during operation of the firearm. A linkage assembly is configured to couple the bolt carrier assembly and the auto sear assembly and effectuate the auto sear assembly actuating the hammer assembly.
- One or more of the following features may be included. The hammer assembly may be configured to releasably engage the auto sear and effectuate the cyclical holding of the hammer assembly in the cocked position and the cyclical releasing of the hammer from the cocked position during operation of the firearm. The linkage assembly may be configured to be cyclically longitudinally displaced in response to the cyclical longitudinal displacement of the bolt carrier assembly. The linkage assembly may be configured to be cyclically longitudinally displaced within an upper receiver assembly of the firearm. The upper receiver assembly may be configured to releasably engage a lower receiver assembly. The lower receiver assembly may be an AR platform lower receiver assembly.
- In another implementation, an actuation system includes a bolt carrier assembly configured for use within a firearm, the bolt carrier assembly including a firing pin configured for striking a chambered round. A linkage assembly is configured to couple the bolt carrier assembly to an auto sear assembly.
- One or more of the following features may be included. The bolt carrier assembly may be configured to be cyclically longitudinally displaced during operation of the firearm. The linkage assembly may be configured to be cyclically longitudinally displaced in response to the cyclical longitudinal displacement of the bolt carrier assembly. The linkage assembly may be configured to be cyclically longitudinally displaced within an upper receiver assembly of the firearm. The upper receiver assembly may be configured to releasably engage a lower receiver assembly. The lower receiver assembly may be an AR platform lower receiver assembly.
- The lower receiver assembly may include a hammer assembly configured for striking the firing pin of the bolt carrier assembly and the auto sear assembly. The auto sear assembly may be configured to actuate the hammer assembly during operation of the firearm. The linkage assembly may be configured to effectuate the auto sear assembly actuating the hammer assembly. The auto sear assembly may be further configured to cyclically hold the hammer assembly in a cocked position and cyclically release the hammer from the cocked position during operation of the firearm. The hammer assembly may be configured to releasably engage the auto sear and effectuate the cyclical holding of the hammer assembly in the cocked position and the cyclical releasing of the hammer from the cocked position during operation of the firearm.
- The details of one or more implementations are set forth in the accompanying drawings and the description below. Other features and advantages will become apparent from the description, the drawings, and the claims.
FIG. 1 is a diagrammatic view of a firearm according to an implementation of the present disclosure;FIG. 2 is a diagrammatic view of an upper receiver assembly of the firearm ofFIG. 1 according to an implementation of the present disclosure;FIG. 3 is a diagrammatic view of a lower receiver assembly of the firearm ofFIG. 1 according to an implementation of the present disclosure;FIGS. 4R & 4L are diagrammatic views of components of the firearm ofFIG. 1 according to an implementation of the present disclosure;FIGS. 5R & 5L are diagrammatic views of components of the firearm ofFIG. 1 according to an implementation of the present disclosure; andFIGS. 6R & 6L are diagrammatic views of components of the firearm ofFIG. 1 according to an implementation of the present disclosure.- Like reference symbols in the various drawings indicate like elements.
- Referring to
FIGS. 1-3 , there is shownfirearm 10.Firearm 10 may includeupper receiver assembly 12 andlower receiver assembly 14.Upper receiver assembly 12 may be configured to releasably engagelower receiver assembly 14. An example oflower receiver assembly 14 may include but is not limited to an AR platform lower receiver assembly. Upper receiver assembly 12 may includebarrel assembly 16,gas block assembly 18,gas piston system 20, charginghandle 22,bolt carrier assembly 24, andspring assembly 26 for biasingbolt carrier assembly 24 in the direction ofarrow 28 to chamber a bullet (not shown) withinchamber 30.Lower receiver assembly 14 may includetrigger assembly 32,disconnector assembly 34,grip assembly 36,hammer assembly 38, fire selector switch40 (e.g., to select between semi-automatic operation, fully-automatic operation, and safety), and autosear assembly 42.- Referring also to
FIGS. 4R ,4L,5R &5L and whenfire selector switch 40 is positioned for semi-automatic operation offirearm 10, upon the firing of a bullet (e.g., bullet44),bolt carrier assembly 24 may be longitudinally displaced (in the direction of arrow46), resulting inhammer assembly 38 being rotationally displaced (in the direction of arrow48) aboutpivot point 50 into the cocked position. Specifically, hook52 ofdisconnector assembly 34 may releasably engagefirst hook 54 onhammer assembly 38. Hammer assembly 38 will remain in this cocked position until a user offirearm 10 depresses triggerassembly 32 into the fire position (i.e., in the direction of arrow56). Upon depressingtrigger assembly 32,disconnector assembly 34 will disengage fromhammer assembly 38.Hammer assembly 38 may includespring assembly 55 for biasinghammer assembly 38 in the opposite direction of arrow48 (namely into the upright position and in contact with bolt carrier assembly24).- Accordingly, upon a user depressing
trigger assembly 32 in the direction ofarrow 56,hammer assembly 38 may be released fromdisconnector assembly 34 andhammer assembly 38 may pivot about pivot point50 (in the direction opposite of arrow48) and may strike firingpin 58, which longitudinally passes throughbolt carrier assembly 24 and strikes a chambered round (not shown), resulting in the discharge ofbullet 44. - Referring also to
FIGS. 6R & 6L , whenfire selector switch 40 is positioned for fully-automatic operation offirearm 10,firearm 10 may function differently due to the operation ofactuation system 60 that allows for fully-automatic operation offirearm 10.Actuation system 60 may include bolt carrier assembly24 (includingfiring pin 58 configured for striking a chambered round, not shown).Actuation system 60 may also includehammer assembly 38, which (as discussed above) is configured for strikingfiring pin 58 ofbolt carrier assembly 24.Actuation system 60 may also include autosear assembly 62 that may be configured to actuatehammer assembly 38 during operation offirearm 10.Actuation system 60 may also includelinkage assembly 64 that may be configured to couplebolt carrier assembly 24 and autosear assembly 62 and effectuate autosear assembly 62actuating hammer assembly 38. - As will be discussed below, auto
sear assembly 62 may be configured to cyclically holdhammer assembly 38 in a cocked position (in the direction of arrow48) andcyclically release hammer 38 from the cocked position (so that it moves in the directions opposite of arrow48) during operation offirearm 10. - Continuing with the above-stated example and when
fire selector switch 40 is positioned for fully-automatic operation offirearm 10, upon the firing of a bullet (e.g., bullet44),bolt carrier assembly 24 may be longitudinally displaced (in the direction of arrow46), resulting inhammer assembly 38 being rotationally displaced (in the direction of arrow48) aboutpivot point 50 into the above-described cocked position. Specifically and as discussed above, hook52 ofdisconnector assembly 34 may releasably engagefirst hook 54 on hammer assembly38 (provided thattrigger assembly 32 is not depressed in the direction of arrow56). - As discussed above,
hammer assembly 38 will remain in this cocked position until a user offirearm 10 again depressestrigger assembly 32 into the fire position (i.e., in the direction of arrow56). Upon depressingtrigger assembly 32,disconnector assembly 34 may disengage fromhammer assembly 38 andhammer assembly 38 may pivot about pivot point50 (in the direction opposite of arrow48) and may strike firingpin 58, which longitudinally passes throughbolt carrier assembly 24 and strikes a chambered round (not shown), resulting in the discharge ofbullet 44. - In the event that the user continues to depress (i.e., hold)
trigger assembly 32 in the direction of56,firearm 10 may repeatedly fire (i.e., discharge) in an automated fashion until the user releases triggerassembly 32. - Accordingly, assume for illustrative purposes that the user continues to depress
trigger assembly 32 in the direction ofarrow 56. Therefore,disconnector assembly 34 will be displaced and, thus, prevented from engaginghammer assembly 38. However, uponhammer assembly 38 rotating aboutpivot point 50 in the direction ofarrow 48,second hook 66 onhammer assembly 38 may engagelower edge 68 of autosear assembly 62, thus lockinghammer assembly 38 in the cocked position (at least temporarily). - However, during normal operation of
firearm 10,bolt carrier assembly 24 is cyclically longitudinally displaced in the direction ofarrow 46 andarrow 28. Accordingly, once travel ofbolt carrier assembly 24 in the direction ofarrow 46 is complete,bolt carrier assembly 24 will be displaced in the direction of arrow28 (e.g., due to the bias of spring assembly26). - As discussed above,
linkage assembly 64 may be configured to couplebolt carrier assembly 24 and autosear assembly 62 and effectuate autosear assembly 62actuating hammer assembly 38. Specifically,forward portion 70 oflinkage assembly 64 may be configured to slidably engagebolt carrier assembly 24, wherein displacement ofbolt carrier assembly 24 in the direction ofarrow 28 may result in displacement oflinkage assembly 64 in the direction ofarrow 28. Accordingly,linkage assembly 64 may be configured to be cyclically longitudinally displaced withinupper receiver assembly 12 in response to the cyclical longitudinal displacement ofbolt carrier assembly 24. - Specifically and upon
linkage assembly 64 being displaced in the direction ofarrow 28,rearward portion 72 oflinkage assembly 64 may engageupper edge 74 of autosear assembly 62, resulting in autosear assembly 62 pivoting in the direction ofarrow 76 and the disengagement ofsecond hook 66 ofhammer assembly 38 andlower edge 68 of autosear assembly 62. Accordingly,spring assembly 55 may biashammer assembly 38 in the opposite direction of arrow48 (namely into the upright position and in contact with bolt carrier assembly24), thus resulting in the striking of firingpin 58 and the discharge ofbullet 44. - Accordingly,
hammer assembly 38 may be configured to releasably engageauto sear 62 and effectuate the cyclical holding ofhammer assembly 38 in the cocked position and the cyclical releasing ofhammer 38 from the cocked position during fully-automatic operation offirearm 10. - Having thus described the disclosure of the present application in detail and by reference to implementations thereof, it will be apparent that modifications and variations are possible without departing from the scope of the disclosure defined in the appended claims.
Claims (23)
1. An actuation system comprising:
a bolt carrier assembly configured for use within a firearm, the bolt carrier assembly including a firing pin configured for striking a chambered round;
a hammer assembly configured for striking the firing pin of the bolt carrier assembly;
an auto sear assembly configured to actuate the hammer assembly during operation of the firearm; and
a linkage assembly configured to couple the bolt carrier assembly and the auto sear assembly and effectuate the auto sear assembly actuating the hammer assembly.
2. The actuation system ofclaim 1 wherein the auto sear assembly is further configured to cyclically hold the hammer assembly in a cocked position and cyclically release the hammer from the cocked position during operation of the firearm.
3. The actuation system ofclaim 2 wherein the hammer assembly is configured to releasably engage the auto sear and effectuate the cyclical holding of the hammer assembly in the cocked position and the cyclical releasing of the hammer from the cocked position during operation of the firearm.
4. The actuation system ofclaim 1 wherein the bolt carrier assembly is configured to be cyclically longitudinally displaced during operation of the firearm.
5. The actuation system ofclaim 4 wherein the linkage assembly is configured to be cyclically longitudinally displaced in response to the cyclical longitudinal displacement of the bolt carrier assembly.
6. The actuation system ofclaim 1 wherein the linkage assembly is configured to be cyclically longitudinally displaced within an upper receiver assembly of the firearm.
7. The actuation system ofclaim 6 wherein the upper receiver assembly is configured to releasably engage a lower receiver assembly.
8. The actuation system ofclaim 7 wherein the lower receiver assembly is an AR platform lower receiver assembly.
9. An actuation system comprising:
a bolt carrier assembly configured for use within a firearm, the bolt carrier assembly including a firing pin configured for striking a chambered round and configured to be cyclically longitudinally displaced during operation of the firearm;
a hammer assembly configured for striking the firing pin of the bolt carrier assembly;
an auto sear assembly configured to actuate the hammer assembly during operation of the firearm and cyclically hold the hammer assembly in a cocked position and cyclically release the hammer from the cocked position during operation of the firearm; and
a linkage assembly configured to couple the bolt carrier assembly and the auto sear assembly and effectuate the auto sear assembly actuating the hammer assembly.
10. The actuation system ofclaim 9 wherein the hammer assembly is configured to releasably engage the auto sear and effectuate the cyclical holding of the hammer assembly in the cocked position and the cyclical releasing of the hammer from the cocked position during operation of the firearm.
11. The actuation system ofclaim 10 wherein the linkage assembly is configured to be cyclically longitudinally displaced in response to the cyclical longitudinal displacement of the bolt carrier assembly.
12. The actuation system ofclaim 9 wherein the linkage assembly is configured to be cyclically longitudinally displaced within an upper receiver assembly of the firearm.
13. The actuation system ofclaim 12 wherein the upper receiver assembly is configured to releasably engage a lower receiver assembly.
14. The actuation system ofclaim 13 wherein the lower receiver assembly is an AR platform lower receiver assembly.
15. An actuation system comprising:
a bolt carrier assembly configured for use within a firearm, the bolt carrier assembly including a firing pin configured for striking a chambered round; and
a linkage assembly configured to couple the bolt carrier assembly to an auto sear assembly.
16. The actuation system ofclaim 15 wherein the bolt carrier assembly is configured to be cyclically longitudinally displaced during operation of the firearm.
17. The actuation system ofclaim 16 wherein the linkage assembly is configured to be cyclically longitudinally displaced in response to the cyclical longitudinal displacement of the bolt carrier assembly.
18. The actuation system ofclaim 15 wherein the linkage assembly is configured to be cyclically longitudinally displaced within an upper receiver assembly of the firearm.
19. The actuation system ofclaim 18 wherein the upper receiver assembly is configured to releasably engage a lower receiver assembly.
20. The actuation system ofclaim 19 wherein the lower receiver assembly is an AR platform lower receiver assembly.
21. The actuation system ofclaim 19 wherein the lower receiver assembly includes:
a hammer assembly configured for striking the firing pin of the bolt carrier assembly; and
the auto sear assembly, wherein the auto sear assembly is configured to actuate the hammer assembly during operation of the firearm;
wherein the linkage assembly is configured to effectuate the auto sear assembly actuating the hammer assembly.
22. The actuation system ofclaim 21 wherein the auto sear assembly is further configured to cyclically hold the hammer assembly in a cocked position and cyclically release the hammer from the cocked position during operation of the firearm.
23. The actuation system ofclaim 22 wherein the hammer assembly is configured to releasably engage the auto sear and effectuate the cyclical holding of the hammer assembly in the cocked position and the cyclical releasing of the hammer from the cocked position during operation of the firearm.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US13/679,966US20130118343A1 (en) | 2011-11-16 | 2012-11-16 | Firearm actuation system |
| US14/518,620US9151558B1 (en) | 2011-11-16 | 2014-10-20 | Sear trip bar for a firearm |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201161560435P | 2011-11-16 | 2011-11-16 | |
| US13/679,966US20130118343A1 (en) | 2011-11-16 | 2012-11-16 | Firearm actuation system |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US14/518,620Continuation-In-PartUS9151558B1 (en) | 2011-11-16 | 2014-10-20 | Sear trip bar for a firearm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US20130118343A1true US20130118343A1 (en) | 2013-05-16 |
Family
ID=48279380
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US13/679,966AbandonedUS20130118343A1 (en) | 2011-11-16 | 2012-11-16 | Firearm actuation system |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20130118343A1 (en) |
| EP (1) | EP2780652A1 (en) |
| CA (1) | CA2855967A1 (en) |
| RU (1) | RU2014124114A (en) |
| WO (1) | WO2013119291A1 (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10139175B1 (en)* | 2013-10-15 | 2018-11-27 | Christopher M. Redmon | Gas operated machine gun |
| US10436535B1 (en) | 2018-01-30 | 2019-10-08 | 22 Evolution Llc | Auto sear such as for use with any AR10 M16 or other midsize firearm platform |
| US10545005B2 (en)* | 2017-03-16 | 2020-01-28 | In Ovation Llc | Firearm delay mechanism |
| US10775121B2 (en)* | 2017-06-29 | 2020-09-15 | In Ovation Llc | Firearm mechanism |
| US11662175B1 (en)* | 2021-12-29 | 2023-05-30 | Sig Sauer, Inc. | Baseplate for a rifle recoil assembly |
| US11724003B2 (en) | 2022-01-10 | 2023-08-15 | Abc Ip, Llc | Firearm trigger mechanism |
| US12038247B2 (en) | 2022-09-08 | 2024-07-16 | Abc Ip, Llc | Firearm trigger mechanism |
| US12169105B1 (en) | 2023-06-29 | 2024-12-17 | Abc Ip, Llc | Firearm semiautomatic trigger mechanism |
| US12253324B2 (en) | 2022-03-07 | 2025-03-18 | In Ovation Llc | Firearm action mechanism |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9151558B1 (en) | 2011-11-16 | 2015-10-06 | Sig Sauer, Inc. | Sear trip bar for a firearm |
| US9541339B2 (en) | 2015-03-26 | 2017-01-10 | American Defense Manufacturing, Llc | Ambidextrously operable firearm receiver assembly |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2482758A (en)* | 1946-09-03 | 1949-09-27 | Us Sec War | Fire control mechanism |
| US3318192A (en)* | 1965-02-12 | 1967-05-09 | Armalite Inc | Locked action rifle for automatic and semi-automatic selective firing |
| US3724325A (en)* | 1971-08-24 | 1973-04-03 | Colts Ind Operating Corp | Rate reducer |
| US3776095A (en)* | 1971-11-05 | 1973-12-04 | M Atchisson | Weapon conversion bolt assembly device |
| USH926H (en)* | 1990-11-16 | 1991-06-04 | The United States Of America As Represented By The Secretary Of The Army | Rimfire blank adaptor kit for m16 rifles |
| US8667882B1 (en)* | 2011-05-06 | 2014-03-11 | Rock River Arms, Inc. | Firearm |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6634274B1 (en)* | 2000-12-11 | 2003-10-21 | Geoffrey Andrew Herring | Firearm upper receiver assembly with ammunition belt feeding capability |
| US7971379B2 (en)* | 2004-02-13 | 2011-07-05 | Rmdi, Llc | Firearm |
- 2012
- 2012-11-16RURU2014124114/11Apatent/RU2014124114A/ennot_activeApplication Discontinuation
- 2012-11-16EPEP12867894.3Apatent/EP2780652A1/ennot_activeWithdrawn
- 2012-11-16CACA2855967Apatent/CA2855967A1/ennot_activeAbandoned
- 2012-11-16USUS13/679,966patent/US20130118343A1/ennot_activeAbandoned
- 2012-11-16WOPCT/US2012/065713patent/WO2013119291A1/enactiveApplication Filing
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2482758A (en)* | 1946-09-03 | 1949-09-27 | Us Sec War | Fire control mechanism |
| US3318192A (en)* | 1965-02-12 | 1967-05-09 | Armalite Inc | Locked action rifle for automatic and semi-automatic selective firing |
| US3724325A (en)* | 1971-08-24 | 1973-04-03 | Colts Ind Operating Corp | Rate reducer |
| US3776095A (en)* | 1971-11-05 | 1973-12-04 | M Atchisson | Weapon conversion bolt assembly device |
| USH926H (en)* | 1990-11-16 | 1991-06-04 | The United States Of America As Represented By The Secretary Of The Army | Rimfire blank adaptor kit for m16 rifles |
| US8667882B1 (en)* | 2011-05-06 | 2014-03-11 | Rock River Arms, Inc. | Firearm |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10139175B1 (en)* | 2013-10-15 | 2018-11-27 | Christopher M. Redmon | Gas operated machine gun |
| US10545005B2 (en)* | 2017-03-16 | 2020-01-28 | In Ovation Llc | Firearm delay mechanism |
| US20200224987A1 (en)* | 2017-03-16 | 2020-07-16 | In Ovation Llc | Firearm Delay Mechanism |
| US10775121B2 (en)* | 2017-06-29 | 2020-09-15 | In Ovation Llc | Firearm mechanism |
| US10436535B1 (en) | 2018-01-30 | 2019-10-08 | 22 Evolution Llc | Auto sear such as for use with any AR10 M16 or other midsize firearm platform |
| US11662175B1 (en)* | 2021-12-29 | 2023-05-30 | Sig Sauer, Inc. | Baseplate for a rifle recoil assembly |
| US11724003B2 (en) | 2022-01-10 | 2023-08-15 | Abc Ip, Llc | Firearm trigger mechanism |
| US12036336B2 (en) | 2022-01-10 | 2024-07-16 | Abc Ip, Llc | Firearm trigger mechanism |
| US12274807B2 (en) | 2022-01-10 | 2025-04-15 | Abc Ip, Llc | Firearm trigger mechanism |
| US12253324B2 (en) | 2022-03-07 | 2025-03-18 | In Ovation Llc | Firearm action mechanism |
| US12038247B2 (en) | 2022-09-08 | 2024-07-16 | Abc Ip, Llc | Firearm trigger mechanism |
| US12169105B1 (en) | 2023-06-29 | 2024-12-17 | Abc Ip, Llc | Firearm semiautomatic trigger mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2780652A1 (en) | 2014-09-24 |
| CA2855967A1 (en) | 2013-08-15 |
| WO2013119291A1 (en) | 2013-08-15 |
| RU2014124114A (en) | 2015-12-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20130118343A1 (en) | Firearm actuation system | |
| US11243036B2 (en) | Trigger group for semi-automatic firearms | |
| US10845147B2 (en) | Trigger group for semi-automatic firearms | |
| US8985006B1 (en) | Trigger assembly | |
| US7398723B1 (en) | Trigger forward displacement system and method | |
| US20070051236A1 (en) | Trigger mechanism for firearms with self-loading actions | |
| US10030928B2 (en) | Operating mode selection mechanism and method for a firearm | |
| US8820211B1 (en) | Selectable dual mode trigger for semiautomatic firearms | |
| US8726555B2 (en) | Magazine safety assembly | |
| US20170122689A1 (en) | Ambidextrous Safety for a Firearm | |
| US20160047620A1 (en) | Automatic air rifle | |
| WO2020142170A3 (en) | Interrupted semi-automatic action for firearms | |
| US7676974B2 (en) | Automatic rifle converted for non-military use | |
| US6543169B2 (en) | Semi-automatic firing and disconnecting device for a non-hammer fired machine gun | |
| US3029708A (en) | Trigger mechanism for automatic firearms | |
| DK3176536T3 (en) | Weapon lock and handgun with such a weapon lock | |
| US7263796B2 (en) | Trigger system for hand firearms | |
| CA3160231C (en) | Trigger-cycled firearm | |
| RU2392569C2 (en) | Automatic gun | |
| RU2390710C2 (en) | Automatic gun | |
| RU2506517C2 (en) | Self-loading pistol |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| AS | Assignment | Owner name:SIG SAUER, INC., NEW HAMPSHIRE Free format text:ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:HIRT, ROBERT;REEL/FRAME:030835/0491 Effective date:20130604 | |
| AS | Assignment | Owner name:TD BANK, N.A., AS ADMINISTRATIVE AGENT, MASSACHUSE Free format text:NOTICE OF GRANT OF SECURITY INTEREST IN PATENTS;ASSIGNOR:SIG SAUER INC.;REEL/FRAME:032323/0209 Effective date:20140220 | |
| STCB | Information on status: application discontinuation | Free format text:ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |