KR20090043504A - Two-way trigger - Google Patents

Abstract

The present invention relates to a firearm, in particular automatic loading, having a trigger member (11), a shear release (9) connected to the trigger member (11), and at least one trigger spring (29) acting on the shear release (9). A trigger device for a military military rifle, in particular an attacking rifle. This triggering device allows the triggering device 11 to prevent such movement to the rear and to one stop which prevents the forward movement of the trigger member 11 with respect to the two stops, ie the shear release 9. Arranged separately from the shea release 9 between the other stops, a short movement of the trigger member 11 relative to the shea release 9 is possible between the two stops 35, 37, A lost-motion spring 33 acts on the trigger member 11 and is preferably arranged between the trigger member 11 and the sheer release portion 9 and is significantly weaker than the trigger spring 29. 11) Press forward.

Description

Bi-directional trigger {TWO-WAY TRIGGER}

The present invention provides a trigger for a firearm, in particular a semi-automatic military rifle, particularly an attacking rifle, having a trigger member, a shear release part connected to the trigger member, and at least one trigger spring acting on the shear release part. It relates to a device (preamble of claim 1).

In the present specification, it is assumed that when fired in the horizontal direction, the firearm is maintained in the normal horizontal firing position. Thus, "forwardly" means "in the muzzle direction," and the handle is located "downward."

More than 100 years ago, the so-called "double pull trigger" was introduced to the German army. For other armies, it was common to place a finger on the trigger during a shot, move the short trigger path, and continue to increase pressure until the shot was initiated. On the other hand, in the case of a double pull trigger, there was a defined additional trigger path with a defined trigger resistance, and when this trigger path was moved, the trigger resistance was increased, and firing was initiated after the movement of the additional short trigger path. The advantage of such a device is that the finger can be placed on the trigger without the risk of shooting being initiated by very slight movement. Therefore, you can place your finger on the trigger while shaking with cold hands or tension, and shooting can be made more precisely depending on the "time to trigger", or else it may occur [so-called, "flint trigger (flint)". trigger) "] can be prevented. However, there are disadvantages in that the trigger is slow in principle and a larger trigger path is required. For this reason, these "double pull triggers" were only introduced to some armies because many others had rifle designed prior to the invention of the "double pull trigger".

In the case of automatic firearms, the double pull trigger was ruled out in principle because of the simple reason that there was no room to accommodate complex instruments and because it was required to move the trigger over a long path to the pressure point at least before every first shot or trigger. . Instead, a device has been devised for the adjustment of the trigger spring to help switch between winter operation (tight trigger) and summer operation (soft trigger), if necessary.

Nevertheless, if the trigger has a short path that can be adjusted by force and, if necessary, can be adjusted by the distance to be covered before reaching the pressure point, it would be desirable to be in a position to shoot in the case of a tighter trigger. will be. In the process, such a device should occupy only a very small space that can be accommodated in an existing firearm, to be precise, in the case of a conventional firearm, the original shea release is designed as the trigger itself. However, this is completely impossible at a glance, but can be realized by the present invention. However, the trigger path moved before reaching the pressure point had to be shorter to accommodate the trigger within the existing trigger guard and to facilitate continuous rapid firing or triggering as in previous trigger cases.

This problem is solved according to the present invention by the following facts.

The trigger member is arranged separately from the shear release between two stops, one of the two stops preventing the trigger member from moving forward relative to the shear release, and the other backward This movement is prevented, whereby a short movement of the trigger member relative to the shear release between two stops is possible.

A lost-motion spring acting on the trigger member, preferably arranged between the trigger member and the sheer release portion, presses the trigger member forwardly significantly weaker than the trigger spring (claim 1).

Excessive movement of the trigger member (of the actual trigger) forward is prevented by the first stop and when the second stop is pulled over the lost-motion distance, it establishes a firm connection between the trigger member and the sheer release. Thus, the two stops form the lost-motion distance of the trigger. The distances of these stops, ie lost-motion distances, can be freely selected structurally such that additional trigger paths are selected in a manner compatible with the given conditions (trigger guards, other operating elements).

However, the requirement is a lost-motion spring that pushes the trigger forward over the lost-motion distance, and the force of this spring must be significantly lower, relative to the trigger spring loading the shea release, so that the perceivable pressure point is If the lost motion of the trigger member has moved, it will remain, and the trigger member will be at the pressure point.

Now, if an automatic firearm or weapon is equipped with a trigger member that is inherently connected to the shear release portion as a single member, the trigger member is structurally separated from the shear release portion if the flint trigger is indispensable / unchangeable. It is sufficient to provide a stop as well as a lost-motion spring to provide a weapon that is structurally incapable of actually having a double pull trigger. This is a particular embodiment of the present invention, since those skilled in the art will discard the basic structure / framework and redesign based on the need for the weapon to have a double pull trigger.

For example, the trigger member may be repositionably mounted in the direction of firing in the sheer release portion between two stops. However, this risks the rigid motion of the trigger member to stiffen over time. Although it is true that weapons will work as usual, this is only possible with flint triggers. For this reason, according to the invention, it is preferred that the trigger member be pivoted about a transverse axis on the shea release portion (claim 2). However, fouling of the slewing bearing is practically unacceptable. Another advantage is that the trigger member exhibits only extremely weak lost motion exiting the housing, which lies within the gap of the corresponding slot / slit in the housing. Thus, when the weapon is retrofitted with the trigger of the present invention, no deformation is required on the housing.

Another embodiment of the invention consists in the fact that at least one of the stops is configured as a horizontal area on the trigger member and / or the shea release (claim 3). In the simplest case, the upper region is constructed on the trigger member, the lower region is constructed on the shear release portion, and the region extends over the entire corresponding path. Both regions extend slightly inclined relative to each other, so that the front part in the case of an unpulled trigger and the rear part of the area in the case of a pulled trigger rest on one another.

A preferred embodiment of the invention is due to the fact that the lost-motion spring between the two zones operates and is preferably arranged behind the swivel bearing between the zones (claim 4). Thus, the lost-motion spring is substantially arranged in the trigger and requires no external space at all. In the preferred case, the lost motion spring is configured as a pressure spring, so that the arrangement is possible by the placement of in or on the two bore holes configured in the trigger member and / or the shea release portion. For retrofitting in automatic weapons, another two way trigger is simply installed.

According to a further embodiment of the invention, it is particularly preferred that the adjusting screw for the pressure point path is arranged in front of the slewing bearing and over the area (claim 5). With this adjustment screw, the position of the front stop which acts at the seating position of the trigger can be deformed so that the trigger within a given boundary is set so that the maximum lost-motion (pressure point path) is obtained, or in each case the same Lost motion may be set to be obtained. Also, if necessary, a setting may be performed to accommodate the characteristics of the sniper.

According to a further embodiment of the invention there is an additional advantage due to the fact that the lost-motion spring can be adjusted or repositioned. Thus, not only the rusted or worn springs can be replaced with new ones, but also the effective forces can be adjusted during the lost-motion path, so that the pressure points can be customized or, for example, in the case of very light "summer triggers". And, on the other hand, in the case of a "winter trigger", on the other hand, can be applied to the characteristics of each trigger that can be clearly perceived through the glove.

Overall, only three additional parts (trigger member, transverse axis and lost-motion spring) were made, and within the scope of the conventional trigger device, to significantly alter its properties.

The subject matter of the present invention will be described in more detail below with the aid of exemplary embodiments in conjunction with the accompanying drawings.

1 is a longitudinal cross-sectional view of the trigger device of the present invention in a safety catch on;

2 is a longitudinal cross sectional view of the bi-directional trigger of the present invention;

3 is a top view of the trigger with the trigger spring,

4 is a view similar to FIG. 1 in a safety catch off state;

FIG. 5 is a view similar to FIG. 4 just before discharge;

6 shows a trigger of a modified design.

Referring to Fig. 1, a conventional trigger device, in which the full details are not shown, will first be described.

One trigger catch 5 which is caulked by a juice spring (not shown) about the transverse axis 3 and which is engaged by two catches, the sheer arm 7 of the single part trigger 9, 11. And a hammer 1 representing a disconnector catch 13 to which the disconnector nose 17 of the disconnector 15 is coupled, the disconnector 15 being a bell of triggers 9 and 11 about an axis 21. It is pivoted in the directional slot 19 and is elastically urged upward by the disconnector spring 23. The safety rollers 25 hold the rear portions of the triggers 9 and 11 without gaps and are fixed about the axis 21.

However, parts 9 and 11 form a single component in the case of the known trigger device, unlike FIG. 1 where the bi-directional trigger of the present invention is shown.

If the safety roller 25 is rotated, for example as shown in FIGS. 4 and 5, in the case of actuation the triggers 9, 11 will cause the trigger member 7 to disengage the trigger catch 5. Counterclockwise rotation can be performed until However, in the case of the known single member triggers 9, 11 this rotational movement is very short. At the same time, the disconnector nose 17 rests on the hammer 1 and is pressed back against the spring 23. Now, the hammer 1 can be disengaged by moving counterclockwise. In the process, the triggers 9 and 11 remain in place.

The release of the hammer 1 fires a bullet, whereby the butt of the gun (not shown) is pushed backwards, and the hammer 1 is cocked clockwise again. In the process, the disconnector nose 17 is first pressed against the spring 23 into the longitudinal groove 19 and then engaged in the hammer via the disconnector catch 13. The hammer is held by catches 13 and 17.

If the triggers 9 and 11 are released, the trigger member 7 is pressed against the hammer 1 before the disconnector catch 17 is pulled back to disengage the disconnector catch 13. The hammer 1 engages slightly (counterclockwise) forward and engages the trigger catch 5 within the trigger sheer 7.

However, according to the invention, the triggers 9, 11 are shown as sheer release 9 and the trigger member 11, which are flexibly connected to each other by two parts, ie the transverse axis 27. Are separated. In the process, the lost-motion spring 33 moves the trigger member 11 clockwise about the transverse axis 27 until the trigger member rests against the front catch 35 with respect to the shear release portion 11. Load.

If the trigger member 11 is actuated, i.e. moved counterclockwise, the front stop 35 is first introduced, the lost-motion spring 33 is compressed, and the trigger spring 29 is rearwarded. The shear release section 9 is held in position until the stop section 37 arrives. The trigger member 9 now moves with the sheer release portion 11 as is known, and the single member triggers 9, 11 engage and disengage the trigger catch 5 from the trigger sheer 7. In the process, the disconnector 15 behaves exactly in the case described above, as the trigger spring 29 is only the shear release section 9, as in the case described above for the single member triggers 9, 11. Because it is loading.

This trigger spring 29 can be seen more clearly in FIGS. 2 and 3, with the form shown as a wire spring acting on both sides of the shea release 11.

In addition, the attachment of the transverse axis line 27 can be seen through FIG. 2 by the pin 31 which is generally vertical, and in the lower trigger member part 11 of FIG. To give a space, a bore hole 41 is formed. The upper region of the trigger member and the lower region of the shear release portion are slightly inclined with each other, so that in the case of the shear release portion 11, the front stop 35 operates when the shear release portion is in the stopped state, and the rear stop ( 37 is activated when trigger member 11 is pulled.

4 shows the function of the mechanism in the case of a disengaged safety roller, and FIG. 5 shows the trigger device immediately after firing while the hammer 1 is being accelerated.

In addition, the lost-motion spring 33 may be accessiblely mounted so that it can be easily replaced, for example, when a softer or harder spring is selected.

There is also the possibility of adjusting the spring action via a screw similar to the lost-motion setting (not shown).

6 shows a further refinement of the invention in which the adjusting screw spindle 43 is inserted into the trigger member 11. This screw spindle 43 can be adjusted from the bottom by a screw driver, provided for the purpose of reducing or expanding the lost-motion path in which the trigger member 11 moves relative to the shear release 9. do.

Claims (6)

Trigger member (11), A shear release part 9 connected to the trigger member 11, and In a trigger device for a firearm, in particular an automatic loading military rifle, in particular an attacking rifle, having at least one trigger spring 29 acting on the shear release 9, The trigger member 11 is arranged separately from the shea release portion 9 between two stops 35, 37, one of the stops 35 being in contact with the shea release portion 9. Prevent forward movement of the trigger member 11, the other 37 prevents backward movement of the trigger member, and the short movement of the trigger member 11 relative to the shear release portion 9 Between the stops 35 and 37, The lost motion spring 33 acting on the trigger member 11 and preferably arranged between the trigger member 11 and the shea release portion 9 is significantly weaker than the trigger spring 29. Pressing forward 11, characterized in that Trigger device. The method of claim 1, The trigger member 11 is characterized in that it is pivoted about the transverse axis 27 on the shear release 9. Trigger device. The method of claim 2, At least one of the stops 35, 37 is configured as a horizontal area on the trigger member 9 and / or the shea release 11. Trigger device. The method of claim 3, wherein The lost-motion spring 33 is activated between the two regions and is preferably arranged behind the swivel bearing 27 between the regions. Trigger device. The method of claim 4, wherein An adjusting screw 43 for adjusting the lost-motion path is arranged in front of the pivot bearing 27 and across the area. Trigger device. The method according to any one of claims 1 to 5, The lost-motion spring 33 is characterized in that it can be adjusted or replaced Trigger device.

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