DE1578367A1 - Automatic firearm - Google Patents

Description

Patent attorney ■ 1 «W367

Dipl.-Ing. R.W.Ihmig 5o38 Rodenkirchen Auenweg 35

Applicant in COLT'S INC.

(a company in the state of Arizona, U.S.A.)

15o Huyshope Avenue

Hartford

Connecticut

UNITED STATES.

Description;

Automatic firearm

The invention "relates to an automatic firearm and relates in particular to a new and improved firearm rate regulator, its automatic Operation is controlled by the bolt and the parts belonging to it.

The purpose of the invention is to create a firearm which the Rate of fire or the speed at which the Firearm is unloaded during automatic operation, automatically controls and delays.

Another purpose of the invention is to provide an automatic firearm which is set up to have a delayed automatic * fire without substantial corrections or Changes to the trigger mechanism or other functional mechanisms of the firearm are required.

It is. also the purpose of the invention to provide a firearm which can be adjusted quickly, smoothly and easily from normal automatic rate of fire to slow speed. It is also the purpose of the invention to provide a fully enclosed rate of fire regulator for "line automatic firearms" which can with ease a change in the rate of the "automatiechen 009821/0082" ^XV

-C7QOC7 P DB 3668

Establishments can cause 'while they are semi-automatic or Single fire operation of the! Firearm not affected. Further purposes and features of the invention are given below. in more detail, some easily recognizable and some expressly set out.

The invention consists of features of the construction and the combination of elements and arrangement of parts, which are described below for example.

Pig. 1 is a partly cut and partly broken drawing Side view "showing parts of the fire control device according to the invention, the dash-dotted lines show the firearm cocked before firing and the sucked-out parts a division of the automatic operation of the firearm.

FIG. 2 is an enlarged section similar to FIG. 1, which a similar color regulation device directly before releasing the Eammeras during automatic operation shows·

Fig. 3 shows the device according to Fig. 2,?; Ocei Heile der Anorddi-ng after releasing the hammer in a different relative position are to each other.

FIG. 4 is an enlarged section similar to FIG. 3, which shows a modified embodiment of the fire control device according to the invention «

0 0 9 821/0092

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«Ir« 7 O QC 7 P DB 3668

To / BJb / £ I0.V1966

In the drawings, like reference characters denote like parts in FIG all figures in which a firearm is drawn ^ which is set up for automatic and semi-automatic operation. For the sake of clarity and a better understanding of the invention, the firearm 1o will hereinafter be referred to as a gas-powered automatic Rifle, i.e. a rifle of the gas pressure loader design. That Rifle 1o includes a lower housing 12, which the Trigger mechanism of the rifle takes up, and an associated upper receiving housing 14 which is provided with a longitudinal recess or chamber 16, in which one indicated generally at 18 Bolt carrier device runs back and forth. A recording housing extension 2o is screwed to the receiving housing, which has a suitable recoil mechanism for the bolt carrier device records. Immediately below the Kanner 16 and in connection with it standing is a second chamber ΐτν .. Extraction chamber 22 is provided, the is within the lower receiving housing 12 ge. And the trigger mechanism, generally designated 24, receives the its structure and mode of operation are described in U.S.A. Patent 3,045,555 issued on July 24, 1962 to E. M. Stoner Mechanism corresponds. The trigger mechanism 24 includes a trigger 26, a hammer 28 and an intermediate piece (English J Sear) 3o a fuse selector 32, which by means not shown can be operated manually from outside to either the rifle to lock in a non-firing safety position, or to to enable semi-automatic or automatic operation of the rifle

When the fuse selector 32 is in the automatic fire position stands, the cocked trigger mechanism is in a position that through the dash-dotted lines in FIG. 1 are illustrated.

009821/0092

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According to the more detailed description in the aforementioned Stoner patent, the drawn one is tensioned non-firing The locking position of the hammer 28 is maintained by cooperative contact between the trigger cutting edge (sear) 54 and lower hammer notch 56, the cutting edge 54 with the latter 4e £ "a?" the load on the trigger spring 58 is kept in contact engagement will. A backward pull on the trigger 26 causes it to pivot clockwise around the trigger pin 4o, and has the consequence that the trigger cutting edge 54 comes free from the Eerbe 56. The hammer 28 is then free to rotate clockwise about its pivot pin 42 under the pressure of the hammer spring 44 and to strike at the firing pin 46. The firing pin in turn acts on the cartridge case and thereby fires the rifle. That Firing the rifle causes the bolt carrier device 18 to recoil or under the action of the burning gunpowder generated gas pressure in the chamber 16 runs back, and that to repeated Paint and automatically cock the hammer, load the next cartridge and fire the rifle as long as the trigger remains drawn.

According to the invention it is now possible to regulate the time elapsing for each firing cycle, and in particular the time To extend the cycle time of the automatic operation and thereby reduce the rate of fire of the rifle. The regulated one

Increased time is achieved by introducing a delay · or delay ο
ο in the work of the hammer after the return of the bolt carrier device

^ 18 into a closed and locked fire readiness division

^ (i battery position). The device 18 consists of one ο

^ elongated sleeve-like bolt carrier 48, the essentially Is cylindrical and has a continuous axial bore 5o Has. In the axial bore i? O there is a not at its front end

Jf 1o.

Drawn bolt held, which supports the firing pin 46 in the periphery of the carrier 48 in addition to two longitudinally extending and circumferentially spaced openings ^ S-ieg-ea? * 52,54 A * g «* 4. The openings are provided at the bottom and top of the support 48 and are sufficiently wide to allow the hammer 28 to pass when it rotates in the direction of the firing pin under the pressure of the spring. The front limit of the lower opening 52 next to the firing pin 46 is formed by the bolt carrier 48 with a shoulder 56 which works against the hammer 28 during the recoil in order to rotate it counterclockwise against the pressure of the hammer spring 44. At the same time, the automatic pawl 58 rotates counterclockwise around its pivot pin 60 under the pressure of the each 62, whereby it moves into the engaged position • «m- ¥« «4fe« 14 «& - Äe» .- & ek «& ie ¥ 4 «« 4 «« e- _< 64- «4« # - Se «m * ¥ · —28-4ejaa-ii'-i3ag4 ₇ -w« »Ä-d« i'-aJi'eg «i'-48 - brings about the hook extension of _a H "" ere 28 then noted when the carrier is in the closed and locked Feuerbereitschäftsstellung returns.

As shown, the lower opening 52 is adjacent to the trigger mechanism when the carrier 48 is in the ready-to-fire position, and the length of the opening is large enough that its rear boundary 66 always remains out of contact with the automatic pawl 58. The carrier 48 is also provided with an elongated breakthrough extension or a groove 68 of practically rectangular cross-section, which runs backwards from 66 and a connecting path between the part of the chamber 22 located on the back of the pawl 58 on the one hand and de *, behind the Breakthrough 52 lying SeJurauog part of the hole 5o fe-e * on the other hand. Wi · Pig. 1 tends, the groove 68 does not extend beyond it

to the end of the carrier · 46. 009121/0082

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3668

10.1.1966 - S -

Inside the hole 5o is a shuttle or flying piston 7o mounted so that it can slide axially, its movement backwards through the cap 72 of the buffer arrangement and bounded forward by the cross pin 76, which so is mounted in the carrier 48 that it crosses the bore 5o in front of the breakthrough limit 66. The beeping piston 7o is made a solid cylindrical time regulator body 78 and, thus consisting of one piece, a forked latch release 8o, which is used as a lower extension from the front end of the 2eitreglerkörpers 78 downwards shows. The flying piston is arranged within the bore 5o so that the trigger 8o slides freely within the groove 68.

It can be seen that the recoil movement of the carrier 48 during automatic operation of the rifle not just the hammer 9 28 downwards presses and thereby causes that the hook 64 comes to lie under the pawl 58, but at the same time also tends to the to press flying piston 7o forward against the cross pin 76 and thereby to cause the flying piston together with the striker carrier is taken backwards, with the forked latch release 8o slightly over the buffer stop solution 82 runs away. When the striker carrier 48 in its backward movement due to compression of the recoil spring, not shown "" U-H "^ 4" "- kemm4 opposite the buffer arrangement 74 for holding comes, the flying piston tends to stop its backward movement under the effect of its own mass forces or its impulse continue and therefore slides backwards until it comes to rest against the buffer cap 72. It is actually the one Coupling effect between the backward inertial force the flying piston on the one hand and the effect of the sole bolt carrier moving forward to the ready position

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^{l0 / ö00 /} Ί. January 10, 1966

Recoil spring on the other hand, which flies the -Sefeieg * el «« »* afäg« * Pushes the piston into a rearmost or rearmost position. So are there when the firing pin is closed forward into the carrier Fire readiness moves, two forces that tend towards it to bring the flying piston to the rear end of the striker carrier.

When the striker carrier 48 returns and the breakthrough 52 goes over the hammer 28, this is under the pressure of the Move hammer spring 44 upwards. However, the automatic pawl 58, which turns counterclockwise under the pressure of the spring 62, gets has rotated, makes contact with the hook 64 of the hammer and prevents the hammer from penetrating completely. As in Fig. 1 is indicated by the solid lines, the impact holds bolt carrier 48 in the fully closed and locked ready-to-fire shaft position before the flying piston 78 is out its abutment on the buffer assembly 74 releases. At that time, however, the hammer 28 has not yet been released (tripped), because the elongated opening 52 is long enough to allow contact between the striker carrier 48 and the automatic Pawl 58 is prevented. The inertia of the flying piston 7o causes its continued forward movement beyond that shown in FIG. 1 The position shown in solid lines up to the position shown in dash-dotted lines. If the flying piston- the latter Position reached, his running in the groove 68 and after the protruding pawl release 8o touches the pawl 58 and causes

«That the automatic latch and the hook extension 64 apart

i come and that the hammer is under the pressure of the hammer spring 44

o can fall or strike against the firing pin 46. This cycle

tow is then repeated as long as the trigger is held back is and thereby a connection between the trigger cutting edge 34 and

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the lower notch 36 on the hammer is prevented.

Since the speed of the striker carrier is "known, can the elapsed time for; each cycle for both different axial Movement distances also for timing bodies of different weights and different composition can be calculated. You can see, of course, that the additional weight of the running back and forth flying butt alone would reduce the rate of fire of the rifle, even if this weight were increased could not move within the striker carrier. The weight of the striker carrier can be reduced so that after Installation of the flying piston the total weight is the same as with a * usual standard striker carrier, so that the Slowing effect solely through the axial movement of the flying one Piston would be caused. This way the exact rate of fire! very carefully regulated with a minimum of modifications to the rifle.

In the pig. 2 and 5, a similar delay piston 84 is shown having an integral lower extension 86 with it which runs in the hat 68 and operates in the same manner as the extension 8o for triggering the hammer during automatic operation of the rifle. The piston 84 consists of a time regulator body 88 with an axial bore 9o in which a time change body 92 is seated. The time-changing body 92 consists of a cylindrical rod 94 which, at one of its ends J _{0, has} a collar ring bi.w · a disk, which is made of one piece with it

-

^ j has 96, the diameter of which is greater than that of the rod. the J Washer 96 fits in hole 4e? 98 of the bore 9o

_o and is indicated therein by the spring stop shown in broken lines loo ο

held. This arrangement permits the use of the rifle for

ft 1o.1.1966

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slowed down or for ia.ore.ale · automatic »firing by merely and reversibly the time changing body 92 into the bore 98 of the time controller body »88 is used. It is evident that the time-changing body 92 is long enough to allow the in 3, the rod 94 rests on the buffer cap 72, while the time regulator body 88 is tight and practically immovable rests on the cross pin 76, which has the effect that the porteatz 86 triggers the hammer immediately when the "striking pin carrier" is closed. So the operator can by reversing the time change body 92 the automatic fire of the rifle because of the peculiarity of the trainers and arrangement of the assembled parts is extremely quick and easy switch from slower rate of fire to normal rate of fire.

Where there is an even longer delay or an even slower rate of fire If desired, the device of FIG. 4 can be modified so that it then has a lightweight strip or Contains lever 1o2 which is pivotably mounted within the axial bore 5o of the striking pin carrier »by a pivot bearing pin 1o4 is. The lever 102 hangs down far so that its forked "free" end rests in the elongated hat 106 which, as shown, runs to the rear end of the striker carrier. An excessive Pivoting movement of the lever 1o2 is made by two transverse pins I08, Ho limited, which is arranged in the bore of the striking pin carrier are. The front transverse pin is similar to the transverse pin ^ 76 located next to the rear end of the breakthrough 52 and works

«Only as a · pivot limit for the lever 1o2. The Queretift I08, ganderereeit ·, it is mounted to the rear of the lever 1o2 and does not work

cgnur al · Sohwenkbegrearung, but also al · EndaneoJalag for dien

Kfiolben 112. In this way, the Qw ensure that the Lever 102 can touch the automatic Kliake 58 when the strip

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40 . 1ο.1.1966

is pushed by the piston "

The piston 112 is inside in the same manner as described in FIG the hole 5o de «striker carrier provided. The piston 112 Weiet a disk-like time controller body 114, the one forked / th and drooping lower extension 116, which downwards «protrudes into the groove 1o6 and forwards · a little further than» .the diameter of the transverse pins 1o8 protrudes. With the rear Surface of the time controller body 114 connected, "ä" iiefe-4 "" i '* - a "·

and facing backwards, it is cylindrical

Stabilizing rod 118, which through the central opening 12o in the buffer cap 122 of the puff he assembly goes through. Advantageously, the time controller body 114 is also formed on the rod 118, the one for triggering the automatic latch during the Stooping motion has the additional weight required. "

The lightweight lever 1o2 is designed and arranged so that it touches the automatic latch 58 when the firing pin is closed and locked. Because of the light weight of this Part, however, and because of the fact that the pivot pin 1o4 absorbs something half the energy of this part when the Striker carrier is locked in its forward! »Movement, the «a» egf> ei * -44-e «« «-« «4 £« · - inertial force of this part is not large enough to release the automatic pawl from hook 64 of the hammer

to make free. The flying piston acts in the manner already described ο

2Wise, but gives a greater delay because it is a smaller one fcj contains time controller body 114 and is arranged so that ttr after

^ protrudes backwards into the buffer assembly, while he is in the ο

° Bohiung 5o can slide. As it moves forwards, it strikes the light-weighted lever 112 near its lower end and causes the automatic pawl 58 to release from the hook and extension 64 and

jj 1o.1.1966

the hammer can fall.

From the description it is achieved that the invention is a relatively precise regulation of the rate of fire of an automatic! The rifle runs by using a striker support arrangement which means to insert a positive timing or a delay time in the fire cycle between the final Has closing the striker carrier and the automatic triggering of the hammer. This delayed operation of the hammer is achieved without changing the trigger mechanism of the rifle and without essential changes in the rest of the functional mechanism required would be, but this results in an effective regulating device that is completely enclosed in the receptacle of the rifle is. In addition, the deceleration regulating device is just as suitable for quick assembly g-eg-e- as for quick conversion of normal rate of fire to slowed rate of fire in automatic mode. The fact that the invention achieves these advantages without the semi-automatic or single-fire operation of the firearm being disadvantageous or otherwise being affected.

Annotation:

A clarifying linguistic change of various expressions, which represent a correct and therefore understandable technical translation from the English-language documents, but are not necessarily those expressions that are mostly used for the same parts in German technical parlance, is reserved .. So it seems practical, e.g. "receptacle" by "chamber", "striker carrier" by "lock" or "lock", "automatic operation" by "continuous fire" etc. to substitute.

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Claims (8)

1θ.Ι.Ι966 Patent claims: (χ) Automatic firearm of the type in which cocking or the movement of a bolt carrier arrangement triggered by the recoil triggers an immediately following shot, this combination being characterized by a fire rate regulator, consisting of delay means which, following the cocking of the striker carrier arrangement, trigger a subsequent shot become effective, namely only during automatic operation of the firearm / and after a delay time interval thereafter the tensioning. 2) Automatic firearm according to claim 1, characterized in that that the delay means are formed by a movable delay member, which is caused by the tensioning of the striking pin carrier arrangement is operated. 3) Automatic firearm according to claim 2, characterized in that that the delay means is a shuttle or flying piston which is slidably displaceable within the striker carrier assembly is stored and is actuated by the tensioning of the striker support assembly. 4) Automatic firearm according to claim 1, characterized in that that the delay means from a sliding in 'the striker carrier arrangement mounted flying pistons exist, the striker carrier having an axial bore through at least one part has the same and a circumferential opening between the ends the bore and standing in communication with the bore, further the breakthrough is large enough to allow contact between the Lock the bolt bearing and a trigger mechanism if the flail carrier is in the ready-to-fire position, and 009821/0082 copy To.1.1966 the flying piston having means suitable for to operate the firearm only during automatic operation » and only after a delayed time interval after the firing pin Carrier has been cocked to the ready-to-fire position. 5) Automatic firearm according to claim 4, characterized in that that the flying piston is a substantially cylindrical body which is slidably received within the axial bore of the striker support assembly, and that further Said means of the flying piston consist of a trigger which is made in one piece with the piston and outwards from the Hole turns out. 6) Automatic firearm according to claim 5, characterized in that that the cylindrical body is provided with an axial opening and that a deceleration change body in the axial Durohbruch is stored. 7) Automatic firearm according to claim 5, characterized by that the cylindrical body is provided with an elongated rod which points backwards in the region of the end of the striker carrier arrangement. 8) Firearm according to claim 4 »characterized in that the Retarding means. Have a lightweight plate, which is pivotally mounted within the bore so that it is directly responsive to the movement of the Sohlagbolzenträger assembly in the Ready to fire sluggish position with an automatic latch la Can be fried * with the touch, the plate not having the latch independently or independently, can operate. BALj 009821/0092