EP0895053A2 - Double action trigger mechanism - Google Patents

Abstract

A cocking trigger mechanism is disclosed. The cocking trigger mechanism includes a hammer element that is moveable between a front position and a rear position, and a drive part that is moveable between an uncocked position and a cocked position. The drive part is arranged to entrain the hammer element during its movement into the uncocked position. A striker spring biases the drive part into the uncocked position. A trigger causes movement of the drive part against the force of the striker spring from the uncocked position to the cocked position and actuates its release. When the drive part is moved independently of the trigger into the cocked position, it is held in this position until subsequent operation of the trigger. The hammer element is connected to a return spring that forces it into a rest position that is situated near its front position as long as the trigger is not operated so that it always assumes a defined position.

Description

• ein Hammerkörper, der
• -- zwischen einer vorderen und hinteren Endlage beweglich ist, und
• -- in der vorderen Endlage zum Aufschlag auf einen Schlagbolzen oder den Zündbereich einer Patrone eingerichtet ist,
• ein Antriebsteil, das zwischen einer vorderen Entspannungslage und einer hinteren Spannungslage beweglich ist und dazu eingerichtet ist, bei seiner Bewegung in die vordere Entspannungslage den Hammerkörper mitzunehmen,
• eine Schlagfeder, die das Antriebsteil in die Entspannungslage drückt, und
• ein Abzug, der
• -- die Bewegung des in der Entspannungslage befindlichen Antriebsteils gegen die Kraft der Schlagfeder in die Spannungslage und dann dessen Abschlagen in die Abspannungslage bewirkt, und
• -- bei unabhängig vom Abzug in die Spannungslage bewegtem Antriebsteil dieses bis zum Betätigen des Abzugs in dieser hält
  (Oberbegriff des Anspruchs 1).

The invention relates to a clamping trigger device with the following elements:

• a hammer body that
• - Is movable between a front and rear end position, and
• - is set up in the front end position to strike a firing pin or the ignition area of a cartridge,
• a drive part which is movable between a front relaxation position and a rear tension position and is designed to take the hammer body with it when it moves into the front relaxation position,
• a striking spring which presses the drive part into the relaxation position, and
• a deduction that
• - The movement of the drive part located in the relaxation position against the force of the impact spring in the tension position and then knocking it off in the tensioning position, and
• - When the drive part moves independently of the trigger in the voltage position, it holds it until the trigger is actuated
  (Preamble of claim 1).

Such a clamping trigger device is particularly suitable for Self loading pistols set up and is by the Self-loading pistol known Daewoo DP 51 C.

In contrast to a conventional pistol, this pistol comes with the hammer body and the drive part together are one Component, the hammer, do not form a permanent connection between the drive part and the hammer body, the rest designed as a cock and with a thumb rest for tensioning is provided. The hammer body is rather light slowed down, but otherwise freely pivotable in the handle stored and is pushed forward by the drive part.

This well-known pistol can be used like any double-action pistol are needed: if the drive part is unstressed and up the hammer body is in its rest position, then move by pulling the trigger with great force Drive part to the rear and then knock off. This strikes the hammer body on the firing pin and releases a shot out. If the hammer body is unclamped using the his hand by hand or by closing the through-loading gun is moved backward, then stay Hammer body and drive part like a single tap both in their rear end position or tension position until the trigger with low force is withdrawn. This is the most tense situation the gun.

In this latter, tense state of Trigger device, it is also possible, the hammer body to push forward to its rest position while the Drive part remains tensioned. Since the hammer body is in its The gun can be in a pocket or in a rest position Shoulder holsters are kept without the protruding Hammer body when pulling the gun around the lid of the bag or gets stuck on the fabric of a jacket. Should be shot then the trigger no longer needs the force to tension the Impact spring can be applied. Rather it has to be reached the pressure point only the frictional resistance of the hammer body overcome, which is pivoted backwards alone. This position of the trigger device could be called a "position increased readiness ".

While in a fully tensioned position, with the hammer body close its rear end position, only a small force the trigger sufficient to trigger the shot must be in the "Position of increased readiness" still the frictional force of the Hammer body to be overcome, so that the risk of unintended firing of a shot is reduced.

However, it is easy to get stuck with the handle on clothes, on a branch or the like Hammer body more or less far to its rear end position is approximated so that the shooter with the "position increased willingness "but actually the full tense situation. The risk of unwanted delivery of a Shot that should be reduced is now given.

In addition, the frictional force is largely subject to the condition the weapon; Wear, oil with a high lubricating effect or rust film can drastically change this frictional force, but also dust, fine sand, frost, which is the weapon lubricating oil thickened or the like

Finally, the operation of this weapon is described as a result the three possible states of the trigger device complicated; an ordnance weapon, on the other hand, is as simple as possible To strive for operation. In contrast, the simple one is advantageous Structure of the clamping trigger device.

To a comparable "position of increased readiness" is achieved in EP patents 0 077 790 and 0 154 356 suggested that the striker when loading a Self-loading pistol should only be partially cocked, like that also with the Austrian cavalry pistol Roth-Steyr Mod. 1907 is the case, so that the shooter first with each shot the striker must fully tension the trigger. In the above However, it is additionally proposed that a Tension spring of the impact spring should counteract so that the Pre-tensioning of the striking spring partially requires force the tension spring is applied. With the spring fully cocked the tension spring is disconnected and the firing pin can knock off.

Apart from the complicated and accordingly pollution and Decoupling mechanism at risk of corrosion has this known Gun the disadvantage that it is constantly, if only partially, is excited. In the unfortunate case, even a weak one can Firing a firing pin is enough to fire a cartridge if the other safeguards should fail.

Another disadvantage lies in the fact that to tension the Firing pin always in the partially tense position Closure movement is required. If, for example, at wet or over oiled pistol the blow of the Firing pin due to water penetration or too much oil in the Weapon is braked, then it can cause one in itself to fail error-free cartridge come. If the shooter now only one hand has free time because e.g. with the other, then he can’t load the pistol so it fails is. With a cocking trigger, however, it could simply be repeated deduct what is highly likely in the case described ignite the cartridge and the pistol in its full readiness would lead back.

However, the fact that the trigger resistance is advantageous is adjustable by tuning the tension spring, and that at Shot always the same operating mode is present.

Based on the outlined problem, the invention is the The task is based on the well-known pistol mentioned at the beginning to further develop that at least part of the described disadvantages of the prior art is eliminated and a pistol is created that is as easy to handle as possible is simple, safe and reliable.

This object is achieved in that the hammer body with a spring is connected to it as long as the trigger is not is pressed, presses into a rest position, which is at or almost located at its front end position.

The spring keeps the hammer body in his Rest position if it has been moved by external influences should. A "fully tense position" in which the hammer body after remains pivoted at the rear is not possible. The hammer body therefore does not need a handle that is to the rear of the Weapon protrudes because it is not a control element of the weapon. It is even possible to put the hammer body inside the gun to lay or cover it with panels so that it does not for example, when pulling the gun, caught on something can.

The spring also counteracts the trigger and its force is at to overcome every shot from the trigger; the "position elevated Readiness "lies with functioning ammunition constantly and as the only operating mode before, so that the operation considerably is relieved. In the case of a cartridge failure, however Possibility of tension deduction can be used. So much for the weapon is provided with an additional guy device that Can tension the drive part, the weapon can also be fully cocked out and operated with the trigger on the first shot become.

The force of the spring and thus the pulling force before each Overcoming a shot can be done within a wide range Determination of the weapon optimized or even adjustable be formed. This spring acts in one Direction that of the tension spring of the trigger device corresponds to the above-mentioned documents, i.e. she presses it Hammer body forward.

The tension trigger device according to the invention thus succeeds in Advantages of the clamping trigger and the simple structure of the generic device with the tunable trigger weight and the simple operation of the device according to one of the to unite the above-mentioned publications without their disadvantages to have to put up with.

One equipped with the trigger device according to the invention Gun or other modern handgun is natural equipped with known security devices that the Set firing pin as long as the trigger is not actuated. For example, the known pistol mentioned at the beginning falls into relaxed state from a considerable height with the hammer body on a pavement, the shot must not come loose. However, this danger does not exist with an internal one Hammer body.

However, any additional backup is an improvement of the Overall security, unless the operational security and the Reliability suffers.

Therefore, it is advantageously proposed according to claim 2 that the Drive part in its relaxation position at least if the trigger is not actuated, sits on a stop and is held by him in a position in which it is in his Impact end position not touched.

Here, the hammer body is accelerated by the drive part. The Drive part is at the end of the acceleration phase from Stop stopped while the hammer body due to its kinetic energy imparted to him by the drive part moves on to the firing pin and on it hits.

The rest position of the hammer body is beyond the Stop, so that the striking drive part on the in Hammer body located in the rest position cannot open because it hits the stop beforehand. This triggers for some reason the cocked drive part without the trigger pulled and thus the hammer body moved away from its rest position then the drive part cannot hit the hammer body reach, so that a shot is not accidentally released can.

But it is also possible according to the invention (claim 3) that the Hammer body in addition to or instead of the one just described Stop has a catch, which when it is close its front end position is in one in one Catch position located collapses. The catch piece is in turn so connected to the trigger that pulling the Trigger the catch piece removed from its catch position.

In its rest position, the hammer body lies with its catch stop on the catch piece and cannot extend beyond it move to its end position in which it can reach the firing pin can.

If either the drive part strikes or the Hammer body receives a blow from the outside, for example when the Weapon falls, then the catch of the catch stops the catch catches the hammer body so that no shot is released can. Even if the hammer body against the action of him spring pressed forward into its rest position, moved backwards and is released, he just swings back to his Rest position, although the force of this spring is not sufficient anyway would, so that there is a blow to the firing pin, which is to Ignition of a cartridge is sufficient.

It is also possible to apply the spring to the Align the hammer body so that the hammer body is like the tap a snap lock in the rest position a dead center position occupies. The dead center position coincides with the position in which drops the catch into the catch. If so Drive part cocked and the trigger is not actuated, then the hammer body moves - should it move in its are in the foremost position - automatically return to its rest position, in which the catch rest is effective.

The spring that holds the hammer body in its rest position can an independent, between the hammer body and the Gun housing attached tension or compression spring.

According to the invention, however, the spring of is preferred the trigger spring is formed or effective as such, the trigger constantly pushes forward. So there is either a feather before, which acts directly on the hammer body, the in turn due to its connection with the deduction pushes in front, or the trigger is, as usual, a spring assigned, which pushes him forward, and the deduction in turn acts on the hammer body via a rod and puts him in a position assigned to him.

It is even possible to have a fuse trigger in the trigger integrate who blocks the trigger as long as not the Trigger pulls the fuse release that is arranged on the end face of the trigger. Therefore remains the hammer body firmly in its rest position, as long as not the Trigger is operated. Also an external influence on the The hammer body cannot move it from the rest position.

The with the cocking device according to the invention equipped weapon can have additional facilities are known from other weapons. Is particularly preferred a known guy device for guying the Drive part (claim 5).

By means of this guy device, the drive part be braced. Should be in this tensioned state can be shot, then the cocking trigger can be operated first become. If the hammer body has a handle, it is but it is also possible that e.g. with the thumb the handle of the Grips the hammer body and the hammer body and thus on drive part lying on it from behind towards the rear swivels until the drive part engages in the tensioned position. Now you can move the hammer body forward again, and the The weapon is on fire.

As already mentioned, the hammer body is with the trigger coupled so that pulling the trigger pivots causes the hammer body, which after about one Cartridge failure take the tensioned drive part with them can. This coupling is carried out by a trigger rod, which is also coupled to the latch, so that when actuated the trigger and thus the trigger rod this the cocked Clamping part triggered.

In a conventional embodiment, however, the trigger rod is only fully coupled in the clamping direction with the hammer body; becomes on the other hand, the hammer body is moved back by hand, follows Trigger bar of the movement of the hammer body only partially, see above that the rest of the drive part in the associated latch can come up with. In this way, the drive part when it relaxed for some reason, be excited again.

The above-mentioned is used to relax the drive part Guy device.

As an alternative solution is the trigger rod according to claim 6 but always clearly free of play with the hammer body coupled so that each position of the hammer body has an associated Location of the trigger device can be assigned, and vice versa. For this purpose there is a recess in the hammer body provided in the one formed on the trigger rod nose engages, or a hole in the hammer body, in which a pin the trigger rod engages, or the like.

Now the hammer body is moved backwards using its handle swiveled while the drive part is tensioned, then at the same time the trigger rod moves until the catch of the Drive part is triggered. Here are the operating positions all elements matched so that the drive part according to his Trigger yourself moving a little forward and then into the Hammer body occurs. This process is clear Click audible. The hammer body moves when the Let go of the handle or slowly push your thumb forward is left together with the drive part forward until the Catch the hammer body before reaching the firing pin persists; the catch stop is effective because the deduction is not is drawn. So the training according to the invention acts as Guy device. A tensioning of the drive part It is not possible to operate the hammer body; with tensioned Drive part, the first shot is made using the (not here explained) clamping trigger device. When the pawl and the catch is pulled back by pulling the trigger and knocks off the drive part (together with the hammer body), then the connection between trigger and trigger rod is released, so that it can move together with the hammer body, without the trigger also having to move.

Fig. 1

den Hammerkörper in Ruhelage und in Eingriff mit der Fangklinke,

Fig. 2

den Hammerkörper in seiner vorderen Endlage, mit freigegebener Fangrast,

Fig. 3

das gespannte Antriebsteil, mit Rastklinke und Federstange,

Fig. 4

eine Darstellung wie in Fig. 3, jedoch mit entspanntem Antriebsteil,

Fig. 5

den Hammerkörper in der Lage der Fig. 2 und das Antriebsteil in der Lage der Fig. 4,

Fig. 6

den Hammerkörper in der Lage der Fig. 1 und das Antriebsteil in der Lage der Fig. 3, und

Fig. 7

den Hammerkörper und das Antriebsteil unmittelbar vor dem Auslösen.

The object of the invention is explained in more detail, for example, with the aid of the attached schematic drawing. This shows a schematic representation of individual parts of the tensioning trigger device according to the invention in mutual association and in different positions in a side view. The individual figures show:

Fig. 1

the hammer body in the rest position and in engagement with the catch,

Fig. 2

the hammer body in its front end position, with released catch,

Fig. 3

the tensioned drive part, with latch and spring rod,

Fig. 4

a representation as in Fig. 3, but with the drive part relaxed,

Fig. 5

the hammer body in the position of FIG. 2 and the drive member in the position of FIG. 4,

Fig. 6

the hammer body in the position of FIG. 1 and the drive member in the position of FIG. 3, and

Fig. 7

the hammer body and the drive part immediately before triggering.

Positional designations such as "front" used in these documents, "above" or the like relate to the location of the fume cupboard, which it assumes when the associated weapon is in Shot position with horizontal soul axis; "front" points in the direction of the shot. In the drawing is "front" synonymous with left, and "above" is synonymous with "above".

The same reference numbers are used throughout the drawings used for the same elements.

In the drawing, the rear section of a handle 1 can be seen in schematic section. The handle is across from passes through an axis 27 on which a hammer body 3 is pivotable and a drive part 17 are mounted.

The part of the hammer body 3 mounted on the axis 27 has one from below and in the longitudinal direction of the handle 1 extending recess which ends in a counter surface 25. In the recess, the drive part 17 is arranged, one contact surface 23 which can be brought into engagement with the counter surface 25 having. When the drive part 17 pivots counter-clockwise, the contact surface 23 lies against the counter surface 25 and takes the hammer body 3 with it.

The hammer body 3 also has a protruding upward Handle 5, which the shooter can grip with his thumb. In addition, a catch catch 7 and a coupling formation 11, through which the hammer body 3 through (not shown Intermediate elements) in connection with the trigger (not shown) is feasible.

In the rest position of the hammer body 3, the catch rest 7 opposite, there is a swivel on the handle 1 mounted catch pawl 9, in this rest position in the catch rest 7 can come up with. The catch pawl 9 then prevents another Swiveling movement of the hammer body 3 counterclockwise.

In front of the handle 5 of the hammer body 3 is the rear End of a firing pin 13 in such a position that it from Hammer body 3 in the rest position can not be touched.

The drive part 17 is within the recess of the Hammer body 3 arranged and also on the axis 27 rotatably mounted. It is by a spring rod 15, which by an impact spring (not shown) is pushed up, in in a counterclockwise direction. The Drive part 17 also has a catch or a catch step 19 on, into which a latch 21 can occur if that Drive part 17 is in its clamping position.

The catch 9 and the latch 21 are both with the trigger (not shown) so that both pawls 9, 21 from the engagement with the hammer body 3 or the drive part 17 can be pivoted when the trigger is pulled. A Breaker (not shown) ensures that at still deducted - if, however, as a result of a reloading process Drive part 17 is tensioned again - also the two pawls 9, 21 have returned to their starting position. They prevent it the hammer body 3 and the drive part 17 on one Swivel movement counterclockwise.

The fume cupboard shown works as follows:

In Fig. 1 the hammer body 3 is shown in its rest position. The Catch pawl 7 engages in catch catch 7 and prevents one further forward movement of the hammer body 3, which thus the Firing pin 13 (Fig. 2) can not reach. The trigger spring (not shown) acts on the coupling 11 Hammer body 3 and pushes it forward. It is possible, the hammer body 3 by means of the handle 5 to the rear to pivot, because the catch 7 only the pivoting movement Firing pin 13, but not prevented from this. Of the Hammer body 3 always returns to that shown Rest position back.

If the trigger is withdrawn, then the catch pawl 9 from the Engagement pivoted with the catch. Now the hammer body 3 reach the firing pin 13 (Fig. 2).

Is the drive member 17 against the force exerted by the spring rod 15 is exercised upwards, swung backwards, then falls the catch 19 into the catch 21 and the drive part 17th remains in the tense position. If the trigger is pulled, then the hammer body 3 is pivoted backwards and the pawls 9 and 21 are pivoted together clockwise. Hereby the drive part 17 is released, which then, by the force the spring rod 15 energetically driven, pivots forward and takes the hammer body 3 located at the back with it, because the contact surface 23 of the drive part 17 on the Counter surface 25 of the hammer body 3 strikes. The hammer body 3 is pushed forward vigorously (Fig. 5) until it hits the Firing pin 13 hits. This is possible because, like already mentioned, the catch pawl 9 due to the pulled trigger is also pivoted back.

The resulting recoil acts on the following shot a closure (not shown) on the handle 5 of the Hammer body 3 and swings it back. The presses Counter surface 25 on the contact surface 23 of the drive part 17 and tensions this until its catch 19 engages in the catch 21 and the drive part 17 is held in the clamping position. Glides the closure then forward again, so the Hammer body 3 with its spring via the coupling 11 low force, gently fall forward again, until the catch catch 7 touches the catch pawl 9.

The deduction is still in process drawn, but by means of an interruption device uncoupled. The pawls 9 and 21 behave as the trigger would not have been actuated.

This normal position of use of the trigger device is in FIG. 6 shown.

If the trigger is now pulled, the hammer body is first 3 pivoted backwards until the pawls 9 and 21 pivoted and the above-described knockdown can take place. Of the State shortly before the knocking off is shown in Fig. 7.

If the cartridge does not ignite after knocking off, the trigger device remains in the position shown in FIG. 5 is shown. If the trigger is now released and pulled again, then the hammer body 3, as described above, pivoted backwards. However, as with the automatic reloading, the drive part 17 with after behind. When you pull it off again, it is released and the Trigger device strikes again.

For striking exercises where the barrel is in the cartridge chamber no cartridge or an empty cartridge case or one Buffer cartridge is located, it is possible to knock after each Let go of the trigger and then 5 by means of the handle Swing the hammer body 3 backwards, doing so Drive part 17 entrains and tensions. Then you leave the Hammer body 3 going forward until its support Catch latch 7 snaps onto catch pawl 9. Now again Pulling off can be practiced.

In the described embodiment, a trigger rod 29 (Fig. 6) provided with a nose in the recess (coupling) 11 engages the hammer body 3 and this when the Deduction pivots into the position shown in FIG. 7. The Trigger bar 29 also serves by engaging in the Latch 21 trigger this to the tensioned drive part 17th to be knocked off.

There is some play between hammer body 3 and Trigger rod 29, so that when the hammer body 3 of Hand is pivoted backwards into the position shown in FIG. 7, the drive part 17 has not yet been triggered.

According to a variant, however, the trigger rod 29 (FIG. 6) engages with its nose free of play in the recess of the hammer body 3 a, which is referred to as coupling 11. The trigger rod 29 thus also actuates the pawl 21 when the hammer body 3 has taken the position of Fig. 7. The individual relative positions the elements of the trigger device are arranged so that the tensioned drive part 17, which when retracted Hammer body 3 is triggered, with a clear click in this can come up with. The deduction is made by the operator not touched.

If the hammer body 3 is now left forwards or simply released, then he moves under the burden of Drive part 17 until the catch 9 of the hammer body 3 on the Catch pawl 9 opens. The firing pin 13 is not touched.

The hammer body 3 thus serves as a device for bracing the Drive part 17; however, this is not by means of the Hammer body can be tensioned, but only by means of the tension trigger.

Claims (6)

Take-off device with the following elements: a hammer body (3), the - Is movable between a front and rear end position, and - is set up in the front end position to strike a firing pin (13) or the ignition area of a cartridge, a drive part (17) which is movable between a front relaxation position and a rear tension position and is designed to take the hammer body (3) with it when it moves into the front relaxation position, an impact spring (spring rod 15) which presses the drive part (17) into the relaxation position, and a deduction that - The movement of the drive part (17) located in the relaxation position against the force of the striking spring (spring rod 15) in the tension position and then knocking it off into the tensioning position, and - When the drive part (17) moves independently of the trigger in the tension position, it holds it until the trigger is actuated, characterized in that the hammer body (3) is connected to a return spring which, as long as the trigger is not actuated, presses it into a rest position which is at or almost at its front end position. Extraction device according to claim 1, characterized in that the drive part (17) in its relaxation position at least if the trigger is not actuated a stop and from this in one position is held in which it is in its end position Hammer body (3) not touched. Extraction device according to one of claims 1 or 2, characterized in that the hammer body (3) a Fangrast (7), which when he is close to his front end position, in one in one Catch pawl (9) falls, the in turn is so connected to the trigger that a pull the trigger the catch (9) from its catch position away. Extraction device according to one of claims 1 to 3, characterized characterized in that the spring is formed by the trigger spring or is effective as such, the deduction constantly after presses in front. Extraction device according to one of claims 1 to 4, characterized characterized that a known Anchoring device for anchoring the drive part (17) is provided. Extraction device according to one of claims 1 to 4, characterized characterized in that the hammer body (3) has a recess (11), in one for triggering the drive part (17) set trigger rod (29) engages without play, so that each position of the trigger rod (29) has a corresponding Location of the hammer body (3) is clearly assigned.

Images