WO2012079133A1

WO2012079133A1 - Safety for use on a weapon and method for locking and releasing a weapon

Info

Publication number: WO2012079133A1
Application number: PCT/BR2010/000414
Authority: WO
Inventors: Vilson Tolfo
Original assignee: Condor S.A. Indústria Química
Priority date: 2010-12-15
Filing date: 2010-12-15
Publication date: 2012-06-21

Abstract

The present invention relates to a safety used for releasing/locking the trigger (35) of a weapon, particularly a non-lethal weapon, in which the safety mechanism is not an integral part of the weapon, having a key assembly for the safety (40) that activates/deactivates operation of the weapon when inserted/removed therefrom, respectively. The present invention further relates to a method for locking a weapon and also to a method for unlocking a weapon.

Description

Patent Descriptive Report for "NEUTRALIZATION LOCK FOR USE IN A WEAPON AND METHOD FOR LOCKING AND UNLOCKING A WEAPON".

The present invention relates to a neutralization lock for use in particular on a weapon which may be lethal or non-lethal in order to prevent its use by unauthorized persons, as well as methods for locking and unlocking a weapon.

Description of the prior art

The use of nonlethal weapons has as its main objective the reduction of lethality. These are used to temporarily incapacitate people without causing death, permanent injury, etc. Nonlethal weapons, also known as less lethal weapons, give agents who use them the ability to use force gradually, greatly reducing the situations where lethal weapon use is required. Thus, the nonlethal weapon is critical in using an effective means to act in defense of the law.

The use of nonlethal weapons has been recommended by the UN in the "Basic Principles on the Use of Force and Firearms by Law Enforcement Officials", with the aim of minimizing the use of means of permanent injury or death. , and the use of firearms is restricted to situations in which nonlethal means are insufficient for neutralizing the offender or for the defense of the military or operative agents.

Even when dealing with a non-lethal weapon, safety when handling such a weapon should be taken into account so that it is only used by trained personnel and not misused. For the use of a nonlethal weapon some factors must be taken into account, among which one can cite mainly the firing distance, which, if too short, can cause permanent or even lethal injuries.

So when it comes to weapons, lethal or not, they are safety mechanisms, which are responsible for preventing misuse and unexpected use. Thus, several locking mechanisms are provided, with the purpose of neutralizing the weapon and giving greater safety to its transport and handling, preventing trigger accidental trigger firings or even when a possible fall of the trigger occurs. weapon.

The operation of the traditional locking mechanism of a weapon is very simple, since it is only a piston, which immobilizes the firing mechanism, known as dog lock.

The dog lock consists of a security lock present on the gun body. This lock prevents the dog from moving, which is critical for firing the weapon. It works mechanically by moving a plunger to the locked or unlocked position. However, because of its simplicity and because it is a fixed lock to the body of the weapon, it allows anyone without advanced weapon knowledge and to have the weapon in hand for a short time to understand the operation of this mechanism. locking (even because it is intuitive), being able to unlock the locked weapon and, from then on, misuse it. This mainly occurs in situations that require the use of nonlethal equipment, such as in containment of disturbances where the likelihood of body contact is high and in some cases the nonlethal weapon is in the possession of protesters, who may use them against public officials.

Thus, the integral presence of the locking mechanism in the weapon is detrimental to the safety of its operation, since there is no guarantee that the weapon will only be used by authorized persons.

Objectives of the invention

It is an object of the present invention to provide a neutralization mechanism that prevents the use of a weapon by any unauthorized person. Another object of the present invention is to enable the locking to be carried out in a low cost way which guarantees a to / quick unlocking, making it easier to handle the gun safely.

To achieve these objectives, the main task is to prevent trigger movement by making it impossible to fire the weapon by manually removing a component.

In addition, with the introduction of this component into the weapon, it will resume normal operation, giving the public agent freedom to render the firing equipment inoperative when desired and, for example, in an unforeseen situation, to prevent a weapon from falling into hand. unwanted people or use by unskilled people. Summary of the invention

The present invention is constituted by a neutralization mechanism which renders the weapon inoperative. The purpose of the neutralization lock is to prevent unauthorized persons from using the weapon, thereby increasing safety both in handling and operation.

The neutralization mechanism in question is based on the fact that the weapon and the neutralizer must be separable and not an integral part of the weapon. Thus, the neutralizer is divided into two main components, the neutralizer lock on the weapon body and the neutralizer key assembly, which is a type of key that can be removed from the weapon, which is the component. locking / unlocking device.

Thus, with the neutralization mechanism separated into two components, the weapon is useful only in the presence of said neutralizer key assembly. The neutralization lock acts preventing the movement of the trigger, which is due to the presence of the locking mechanism inside the weapon body, which is activated / deactivated by the removal / insertion of the neutralizer key, respectively.

Brief Description of the Drawings

The present invention will hereinafter be described in more detail based on an exemplary embodiment shown in the drawings. The figures show: Figure 1 is a right side view of a nonlethal grenade launcher illustrating the location of the neutralization mechanism in the weapon body near the trigger;

Figure 2 is an exploded view of the weapon body;

Figure 3 is a cross-sectional view of a detail of the weapon body disclosed in Figure 1;

Figure 4 is a view of the weapon body indicating section sections A-A and B-B;

Figure 5 is a cross-sectional view of section A-A of Figure 3 with the weapon disabled;

Figure 6 is a cross-sectional view of section B-B of Figure 3 with the weapon disabled;

Figure 7 is a cross-sectional view of section A-A of Figure 3 with the weapon activated; and

Figure 8 is a cross-sectional view of section B-B of figure 3 with the weapon activated.

Detailed Description of the Figures

Fig. 1 illustrates an example of application of the neutralizing mechanism that can be applied to a weapon, particularly a nonlethal grenade launcher. The weapon body 16 stores the main components responsible for firing the weapon. In the body 16, located above the rear handle 24 is coupled the neutralizer key assembly 40, which is detachable from the weapon and responsible for the locking or unlocking of the weapon, respectively, deactivation and activation of the neutralizer. The location of the key assembly 40 above the rear handle 24 is intended to facilitate its removal by the agent in an emergency situation, such as when control of the situation is lost, thereby preventing any possible use of the weapon by persons. unauthorized.

In order to further simplify weapon locking / unlocking, the neutralizer key assembly 40 is shaped like a ring, so it is easy to remove for locking the weapon in an emergency situation and to introduce it. for the quick use of the weapon. In this way, it is possible to fix the ring of the neutralizer key set 40 to the agent, who, if he loses the weapon in a demonstration, having the key fixed to himself, makes it impossible for third parties to use the weapon, such as a protester, because when you lose control of the weapon, the neutralizer key 40 stays with the agent while the weapon in the locked position stays with the protester who cannot fire it.

The operation of a firing mechanism occurs in a simple manner. Taking for example Figure 2, where an exploded view of the trigger mechanism in question is exemplified, it is basically composed of: trigger 35, intermediate trigger 38, percussion lever 29, dog 27, percussor 21 and their respective auxiliary components like springs and shafts.

Trigger 35 is connected to intermediate trigger 38 through the extension of trigger 36, fixed by pins 37 to both. Thus, when trigger 35 is actuated it triggers its movement by pushing intermediate trigger 38 in the direction of force applied to trigger 35. Moving the intermediate trigger back will compress the intermediate trigger spring 39. All component movement present within the body of the weapon 16 results from triggering of trigger 35. Thus, this movement of trigger 35 is further responsible for actuating the percussion lever 29. The percussion lever 29 consists of a transfer bar, fixed by a pin 61 to trigger 35 responsible for driving the striker 21 against the ammunition fuse. Therefore, when the percussion lever 29 is actuated by the trigger 35 it moves upwards between the dog 27 and the hammer 21. In this interaction, the dog 27 moves, compressing the spring of the dog 33 and, after the At the end of the triggering motion of the trigger, that is, the end of the backward movement of the trigger, the dog's spring returns to its initial position, making possible the triggering of the striker 21, which collides with the projectile's trigger causing it to fire. .

Still from figure 2, we can observe the presence of the lock of the neutralizer 41 in the weapon body 16. The main component of the neutralizer in the weapon is the key assembly of the neutralizer 40. It consists of a bolt and thus is fixed in the weapon body 16 due to the existence of a spring clips 44 which it holds the neutralizer key assembly in the weapon, requiring minimal force to remove it, not allowing spontaneous release.

The neutralizer lock 41 is inserted between the intermediate trigger 38 and the intermediate trigger spring 39 and consists of a small plate fixed to an axis 19. The neutralizer lock axis 19 is secured to a pin 43 and a spring of the 42 so that when the neutralizer key assembly 40 is inserted into the weapon it compresses the neutralizer spring 42 by moving the neutralizer lock plate 41 against the weapon body 16. Thus, the neutralizer lock plate 41 is displaceable by the effect of the neutralizer spring 42 relative to the intermediate trigger 38. The movement of the neutralizer lock plate 41 will be responsible for locking / unlocking the weapon. When the neutralizer key assembly 40 is inserted into the weapon, the neutralizer lock plate 41 is displaced and compressed along with the neutralizer spring 42 and farthest from the weapon body cover 17.

By removing the neutralizer key assembly 40 from the weapon, the neutralizer spring 42 is no longer compressed, so it returns to its initial condition and thus the neutralizer lock plate 41 is moved to another position, becoming more close to the cover 17 of the weapon body 16. Thus, based on the movement of the neutralizer lock plate 41, it is possible to explain below the importance of this element in the locking of the weapon.

As shown in Figure 2, it is further noted that at the proximal end of the intermediate trigger spring 39, the intermediate trigger 38 has a shoulder 66 with a U-shaped profile section, which has two teeth in its rear portion and an un leaked slot 68 between the two teeth in the wall facing the body cap of the weapon. The explanation for the central feature 68 is that it is necessary for that intermediate trigger 38 has a full stroke at the time of firing (compression and release of intermediate trigger spring 39). As explained above, the neutralizer lock 41 is guided by an axis 19 and thus, if there was no said central groove 68 at its end, the diameter of the axis 19 would consist of a sturdy section for moving the intermediate trigger 38. Therefore, when the weapon is unlocked, and trigger 35 is actuated, axis 19 runs within slot 68 and the stroke of intermediate trigger 38, which is driven through the extension of trigger 36, is secured.

According to the illustration of figure 3, which shows a side view of the weapon body, the movement and location of the components explained in figure 2 can be better understood. In addition, Fig. 3 illustrates the central slot 68 at the end of the intermediate trigger 38, as well as the axis 19 of the neutralizer. According to the present invention, and as seen in figure 2, between the intermediate trigger spring (not seen in the figure) and the intermediate trigger 38 there is a small plate, which is responsible for neutralizing the weapon, which receives the locking name of the neutralizer 41 (its operation is explained in detail in figures 4 to 8).

The body of the weapon illustrated in figure 3 can now be seen in figure 4, however it is capped. The presence of lid 17 is justified by increased safety, ease of operation and prevention of debris entering the firing mechanism. In this manner, one can observe the exposed components, such as the neutralizer key assembly 40 and the trigger 35. For a better understanding of the invention, two sections are shown in the figure, which in section, will exemplify in detail the operation of the weapon neutralizer.

In figure 5 section AA is illustrated in section, exemplifying the weapon in its deactivated condition, ie with the neutralizer key assembly 40 missing. As explained in Figure 2, the intermediate trigger 38 has at its end a shoulder 66 which is present in only half of the cross-section of the intermediate trigger 38. Therefore, dividing the end of the intermediate trigger 38 into two different shapes (cam 66 and recess 67) thus has two different conditions where one hour the neutralizer lock plate 41 will collide with cam 66, not allowing trigger movement and in another condition the lug 66 will lie in a different plane from the neutralizer lock plate 41, with no further obstacles for intermediate trigger movement 38.

Also in Figure 5, with the absence of the neutralizer key assembly 40 of the weapon there is no effort compressing the neutralizer spring 42 and thus this spring and the neutralizer lock plate 41 are in their initial condition ( uncompressed). In this way, the neutralizer lock plate 41 is located closer to the weapon body cover and because it is located in the direction of movement of the intermediate trigger 38, it consists of a resistant section for its movement. Thus, when the trigger is actuated and the intermediate trigger 38 begins its movement to compress the intermediate trigger spring, the intermediate trigger collides with the neutralizer lock plate 41, making it impossible to fire.

According to Figure 6, the neutralizer spring can be seen in its initial condition, ie not being compressed. The absence of the weapon's neutralizer key assembly 40 ensures that there is no stress on the neutralizer spring 42, so the neutralizer lock plate 41 will be closer to the weapon body cover, making it impossible, as explained in figure 5, trigger movement and triggering.

Still in figure 6 one can better observe the shape of the neutralizer key assembly 40, which has a central slot to be positioned concentric to the pin 43 when coupled to the weapon, and also the different shape of it, which has a pin shape, for its attachment to the weapon with the help of spring clips 44, as explained in figure 2.

The neutralizer lock plate 41 at the end of intermediate trigger 38 consists of a small plate which is attached to the spring of the When the neutralizer key assembly 40 is not inserted into the weapon, the neutralizer spring 42 is in its initial condition, with the neutralizer lock plate 41 near the weapon body cover.

In Figure 7 the same conditions as in Figure 5 are illustrated, however the weapon is now in the unlocked condition, being possible to fire. The weapon is unlocked by inserting the neutralizer key assembly 40 into the weapon. Thereby, there is an effort on the part compressing the neutralizer spring and thus the neutralizer lock plate 41 is moved to a condition farther from the weapon body cover. From this, it can be seen from this figure that the shoulder 66 of the intermediate trigger 38 no longer finds a resistant section for its movement, and thus, when the trigger is pressed, the intermediate trigger 38 starts its movement to compress the spring of the trigger. intermediate trigger, ie backward in the trigger direction of the trigger. In the presented condition, the triggering can be performed, because with the displacement of the intermediate trigger 38, the recess 67 of the intermediate trigger 38 will surround the neutralizer lock plate 41, ensuring its movement, since there will be no collision with the plate. of the neutralizer lock 41.

In accordance with Figure 8, it can be further observed that the neutralizer lock plate 41 is further away from the weapon body cover due to the fact that the neutralizer spring 42 is compressed, as the neutralizer key assembly 40 acts. compressing it, secured by clips 44 by the spring, requiring an effort to remove it.

Based on the figures in question, the method of locking and unlocking the weapon can be described. The method of locking the weapon can be explained by the following steps and their consequences on the weapon mechanism:

- removal of the neutralizer key assembly from the weapon;

- release of the neutralizer spring;

- approach of the neutralizer lock plate of the cover of the gun body; and

- Pairing the neutralizer lock plate with the intermediate trigger shoulder.

For locking the weapon, the following steps and consequences are:

- insertion of the neutralizer key assembly into the weapon;

- locking of the neutralizer key assembly in the weapon due to the presence of spring clips;

- compression of the neutralizer spring;

- moving the neutralizer lock plate to a position farther from the weapon body cover; and

- Pairing the neutralizer lock plate with the intermediate trigger recess.

Thus, as explained above in the method for locking / unlocking the weapon, it is advisable that during an operation the agent holding the weapon has the neutralizer key assembly fixed to his body in some way, either by small line, or through its ring shape, which favors a quick removal for an emergency situation. This way, if protesters forcibly remove the weapon from the hands of an agent, the neutralizer key set, because it is attached to it, will be removed, and thus no shooting will be possible by these non-combatants. authorized.

Thus, when an agent has a weapon with the neutralization system in accordance with the present invention, he is assured that the weapon will only be fired by persons qualified for such activity, preventing the weapon from being used by non-combatants. authorized.

Having described a preferred embodiment example, it should be understood that the scope of the present invention encompasses other possible variations, being limited only by the content of the appended claims, including the possible equivalents thereof. Reference Listing

16 gun body

17 gun body cover

19 axis

21 percussor

24 rear handle

27 dog

29 percussion lever

33 dog spring

35 trigger

36 trigger extension

37 trigger extension pins

38 intermediate trigger

39 intermediate trigger spring

40 key neutralizer set

41 neutralizer lock

42 neutralizer spring

43 pin for neutralizer key assembly

44 spring clips for access key

61 pin for percussion lever

66 intermediate trigger cam

67 intermediate trigger undercut

68 intermediate trigger slot

Claims

1. Neutralization lock for use on a weapon comprising

a trigger (35) connected to an intermediate trigger (38), with the trigger (35) being connected to the intermediate trigger (38) by means of a trigger extension (36),

a spring (39) acting on the trigger (35) by means of the intermediate trigger (38) and the trigger extension (36),

characterized by the fact that

a neutralizer lock plate (41) is spring-displaceable relative to the intermediate trigger (38) in a first position, making it impossible to move the intermediate trigger (38) through its travel, and in a second position, allowing the intermediate trigger stroke (38), wherein displacement of the neutralizer lock plate (41) occurs by insertion / removal of the neutralizer key assembly (40), which is detachable from the weapon.

Neutralization lock according to claim 1, characterized in that the intermediate trigger (38) has at its end a shoulder (66) with a tear (68) in its central part.

Neutralization lock according to either of claims 1 or 2, characterized in that a neutralizer key assembly (40) is secured to the weapon by a clip spring (44) which fits into the body of the assembly. for being pin-shaped, and the fact that the introduction of the neutralizer key assembly (40) into the weapon is responsible for compressing the neutralizer spring (42).

Neutralization lock according to any one of claims 1 to 3, characterized in that the neutralizer lock plate (41) is fixed to the weapon by a shaft (19) and that said plate has a central hole for passage of a pin (43) which is surrounded by the neutralizer spring (42).

Neutralization lock according to any one of Claims 1 to 4, characterized in that the compression / release of the neutralizer spring (42) moves the neutralizer lock plate (41) in the normal direction to the weapon body.

Neutralization lock according to any one of claims 1 to 5, characterized in that the neutralizer key assembly (40) has a central groove so as to be concentric with the pin (43) when engaged in the weapon.

Neutralization lock according to any one of claims 1 to 6, characterized in that the intermediate trigger (38) has a shoulder (66) in half of its cross section.

Neutralization lock according to any one of claims 1 to 7, characterized in that when the neutralizer key assembly (40) is inserted into the weapon and the neutralizer spring (42) is compressed, the plate of the The neutralizer lock (41) aligns with the recess (67) of the intermediate trigger (38) and allows its movement.

Neutralization lock according to any one of claims 1 to 8, characterized in that when the neutralizer key assembly (40) is removed from the weapon and consequently the neutralizer spring (42) is released, the neutralizer lock plate (41) aligns with the shoulder face (66) of the intermediate trigger (38) consisting of a movement resistant section thereof.

A method of locking a weapon, comprising a neutralization lock as defined in any one of claims 1 to 9, characterized in that it comprises the steps and consequences in the firing mechanism of the weapon of:

- removal of the key neutralizer assembly from the weapon (40);

- release of the neutralizer spring (42);

- approaching the neutralizer lock plate (41) of the weapon body cover (17); and

- Pairing the neutralizer lock plate (41) with the intermediate trigger shoulder (66).

A method for unlocking a weapon, comprising a neutralization lock as defined in any one of the claims. 1 to 9, characterized by understanding the steps and consequences in the firing mechanism of the weapon of:

inserting the neutralizer key assembly (40) into the weapon;

locking of the neutralizer key assembly (40) in the weapon due to the presence of spring clips (44);

- compression of the neutralizer spring (42);

moving the neutralizer lock plate (41) to a position farther from the weapon body cover (17); and

- Pairing the neutralizer lock plate (41) with the intermediate trigger recess (67).