EP1821059B1 - Trigger device for firearm - Google Patents

Abstract

The device has a sear (2) assigned to an impact lever (1) and a trigger rod (5) connected with a trigger (4). The impact lever is loaded in an adjustment direction by an impact spring (6). A pin (26) that stays in contact with a trip lever (3) is arranged at the impact lever, where the trigger is held in a partially pre-loaded condition of the impact lever by the trip lever via the pin. The pin is held in a withdrawn position by the cooperated trigger rod. A compression spring that counteracts with the impact spring is engaged at the impact lever.

Description

The invention relates to a trigger device for a handgun according to the preamble of claim 1.

Such a take-off device is known from DE 103 05 682 B3 known. There, the trigger rod connected to the trigger is displaced via a closure actuated by the closure control from an engagement position for tensioning a hammer in a release position to release the cocked firing lever. The control is a displaceable by the movement of the closure when repeating the handgun spool by which the trigger bar is brought after triggering the first shot from its release position into a catching position for catching the taut when repeating hammer. As a result, the hammer can already be caught again and held over the trigger before it reaches its fully relaxed front home position. If the trigger is not released by the shooter after the delivery of the first shot, so the second shot can be delivered with a shortened Abziehweg, However, the trigger is released after the delivery of the shot, this moves back to its original position and the delivery of the next Schusses is again the complete trigger path required. The operation of this extraction device thus essentially corresponds to that of a double action only - trigger system with the possibility of a shortened withdrawal path, in which case the reduced withdrawal path is available only from the second shot available.

The object of the invention is to provide a trigger device of the type mentioned, which allows a shortened withdrawal path already at the first shot.

This object is achieved by a take-off device with the features of claim 1. Advantageous embodiments and advantageous developments of the invention are specified in the dependent claims.

In the trigger device according to the invention, there is disposed on the hammer a cam engaged with the trigger lever, by which the trigger in a partially biased position of the hammer over the trigger lever and the trigger rod cooperating therewith is held in a retracted position with a shortened discharge path. Already at the first shot thus there is the possibility of an actuation of the trigger device with a short trigger travel and low trigger weight.

In a particularly advantageous embodiment, a shock spring counteracting compression spring is arranged on the hammer. As a result, the trigger weight can be reduced upon actuation of the trigger device and changed by a suitable choice of the compression spring in a particularly simple manner.

The compression spring is clamped in a structurally expedient embodiment between the hammer and a rotatably mounted within the percussion lever spring abutment. The spring abutment is expediently arranged rotatably together with the hammer on a hammer axis. In a particularly space-saving manner, the spring abutment is housed within a slot of the hammer.

The trigger device according to the invention is also ready for ignition failures in which the hammer is not biased by the returning shutter, ready for use. Here, the provided on the hammer cam engages in a recess of the release lever and holds the trigger on the trigger rod and the trigger lever in a forward position, from which the trigger can be operated with, however, then longer Abzugweg and higher trigger weight.

Figur 1

eine Seitenansicht einer erfindungsgemäßen Abzugsvorrichtung in einer teilvorgespannten Stellung;

Figur 2

eine Schnittansicht der Abzugsvorrichtung von Figur 1 in der teilvorgespannten Stellung;

Figur 3

eine Seitenansicht der Abzugsvorrichtung von Figur 1 in einer vollständig gespannten Stellung;

Figur 4

eine Schnittansicht der Abzugsvorrichtung von Figur 1 in der vollständig gespannten Stellung;

Figur 5

eine Seitenansicht der Abzugsvorrichtung von Figur 1 nach einem Zündversager;

Figur 6

eine Schnittansicht der Abzugsvorrichtung von Figur 1 nach einem Zündversager;

Figur 7

eine Fangklinke der in den Figuren 1 bis 6 gezeigten Abzugsvorrichtung in einer Perspektive;

Figur 8

einen Schlaghebel der in den Figuren 1 bis 6 gezeigten Abzugsvorrichtung in zwei unterschiedlichen Perspektiven;

Figur 9

einen Auslösehebel der in den Figuren 1 bis 6 gezeigten Abzugsvorrichtung in einer Perspektive;

Figur 10

eine Abzugstange der in den Figuren 1 bis 6 gezeigten Abzugsvorrichtung in einer Perspektive und

Figur 11

ein Federwiderlager der in den Figuren 1 bis 6 gezeigten Abzugsvorrichtung in einer Perspektive.

Other features and advantages of the invention will become apparent from the following description of a preferred embodiment with reference to the drawings. Show it:

FIG. 1

a side view of a take-off device according to the invention in a teilvorgespannten position;

FIG. 2

a sectional view of the extraction device of FIG. 1 in the partially pre-stressed position;

FIG. 3

a side view of the extraction device of FIG. 1 in a fully cocked position;

FIG. 4

a sectional view of the extraction device of FIG. 1 in the fully cocked position;

FIG. 5

a side view of the extraction device of FIG. 1 after a failure of ignition;

FIG. 6

a sectional view of the extraction device of FIG. 1 after a failure of ignition;

FIG. 7

a satchel in the FIGS. 1 to 6 shown trigger device in a perspective;

FIG. 8

a hammer in the FIGS. 1 to 6 shown drawing device in two different perspectives;

FIG. 9

a release lever in the FIGS. 1 to 6 shown trigger device in a perspective;

FIG. 10

a trigger bar in the FIGS. 1 to 6 shown trigger device in a perspective and

FIG. 11

a spring abutment in the FIGS. 1 to 6 shown trigger device in a perspective.

The in the FIGS. 1 to 6 In various positions schematically shown trigger device of a handgun contains a hammer 1, a sear 2, a trigger 3, a trigger 4 and a hinged thereto trigger bar 5, on the impact of the hammer 1 during the actuation of the trigger 4 initially against the force of a striker 6 tensioned and then released to trigger a shot becomes. By the percussion spring 6 of the hammer 1 is applied in the strike direction for actuating a firing pin, not shown. The force of the striking spring 6 is transmitted in a conventional manner via a Schlagfcdcfstange 7 on the hammer 1. By a trigger rod spring, also not shown, the trigger bar is pushed backwards and upwards.

The hammer 1 is rotatably mounted within a fitting or handle 8 of the handgun on a hammer axis 9. How special from the Figures 2 . 4 and 6 it can be seen, within the percussion lever 1, a spring abutment 10 is also rotatably mounted on the hammer axis 9. Between the rotatable spring abutment 10 and the hammer 1, a compression spring 11 is clamped, counteracts the spring force on the hammer 1 of the force of the striking spring 6. Within the built-in or Griffstlicks 8 also cooperating with the hammer 1 catch 2 is rotatably mounted on a transverse pin 12. On the cross pin 12 also cooperating with the sear 2 release lever 3 is rotatably arranged.

In the FIG. 7 enlarged illustrated sear 2 has at the top a transverse bore 13 for the cross pin 12 and at the bottom of a catch catch 14 for engagement with a safety catch 15 on the front of the in FIG. 8 enlarged shown hammer 1 on. In the FIG. 7 also shown squeezing pawl 2 at the front further includes a groove 16 in which a leg spring, not shown here for biasing the sear 2 is housed. The sear 2 also includes a laterally projecting driver 17, with the in FIG. 9 shown enlarged release lever 3 cooperates.

The in FIG. 8 in two different perspectives magnified hammer 1 includes a continuous transverse bore 18 for the beat lever axis 9, around which the hammer 1 is rotatably mounted. Below the transverse bore 18, a hole 19 is provided for serving as a plant for the striker rod 7 pin. At the bottom, the hammer 1 has a groove designed as a fire stop 20 for engaging a trigger bar catch 21 at the in FIG. 10 shown trigger bar 5. According to FIG. 8 is in the percussion lever 1 above the transverse bore 18 and the safety catch 15 is provided from its front side in the longitudinal direction of the handgun inwardly extending blind hole 22 for the rear end of the compression spring 11. At the front of the hammer 1 is also a slot 23 for receiving the in FIG. 11 enlarged at the bottom of the slot 23 is a contact surface 24 for a in FIG. 11 recognizable stop surface 25 provided on the spring abutment 10. How out FIG. 8 can be seen, the hammer 1 on a lateral cam 26 which cooperates with the trigger lever 3.

In FIG. 9 the release lever 3 is shown enlarged. It contains an upper hole 27 for the transverse pin 12, on which the release lever 3 is rotatably mounted. Below the hole 27, a slot 28 is provided for receiving the hammer axis 9. At the back of the trigger lever 3, a nose 29 and a recess 30 for engagement with the lateral cam 26 of the hammer 1 is provided below the hole 27. At the bottom of the release lever 3 is a downwardly projecting leg 31 and a groove 32 for engagement of the trigger rod catch 21st

In the FIG. 10 separately shown trigger rod 5 has at its inwardly cranked front end a rightwardly inwardly projecting pin 33 for connection to the trigger 4. At its rear end the trigger bar 5 includes a rearwardly projecting web 34 with an obliquely upwardly extending control surface 35 and a right in the direction of the percussion lever inwardly bent portion 36 with the trigger rod catch 21st

In FIG. 11 is arranged within the striking piece 1 spring abutment 10 is shown enlarged. It contains a bore 37 for the beat lever axis 9, on which the spring abutment 10 is rotatably arranged together with the hammer 1. At the in FIG. 11 Located on the right front of the spring abutment 10 is located above the stop surface 25, a spring abutment detent 38 which engages with the catch catch 14 of the sear 2. Above the bore 37, the spring abutment 10 has a rearwardly facing abutment surface 39 with a retaining pin 40 for the front end of the compression spring 11.

In the following, the operation of the extraction device according to the invention with reference to the FIGS. 1 to 6 explained.

In the Figures 1 and 2 the extraction device is shown in a partially preloaded initial position. In this position, the catch pawl 14 of the sear 2 is in engagement with the safety catch 15 of the hammer lever 1 and the spring abutment 38 of the spring abutment 10. Thus, the hammer 1 is held with the spring abutment 10 of the sear 2 in a biased safe position. In this partially prestressed position, the compression spring 11 is tensioned, so that its force acting on the hammer 1 spring force counteracts the force exerted by the hammer lever spring 6 on the hammer 1. In this way, the trigger weight is reduced when operating the trigger. How out FIG. 1 seen, the cam located on the hammer 1 26 presses the lower leg 31 of the release lever 3 via the nose 29 and the release lever 3 in connection with trigger line 5 forward in the direction of the trigger 4, while keeping the trigger 4 in a position in the trigger device can be operated with a shortened withdrawal path.

If at the in FIG. 1 shown part-preloaded starting position of the trigger 4 is actuated, the trigger rod 5 moves according to FIG. 3 forward, whereby the release lever 3 is rotated over the trigger rod catch 21 and the hammer 1 is further tensioned against the force of the hammer lever spring 6, while held by the sear 2 spring abutment 10 according to FIG. 4 remains in its position. The prestressed compression spring 11 acts while the rising spring force in FIG. 1 shown shock spring 6 and thereby reduces the trigger weight. During the clamping operation, the compression spring 11 relaxes until the lower stop surface 25 of the spring abutment 10 strikes the abutment surface 24 of the impact lever 1. During the clamping operation also the trigger bar 5 is moved over the voltage applied to the beat lever axis 9 control surface 35 of the trigger rod 5 down to a position in which the trigger rod catch 21 out of engagement with the associated fire stop 20 of the hammer 1 passes and thus the hammer 1 for triggering a shot releases. Before the exit of the trigger rod catch 21 from the fire catch 20 of the hammer 1, the sear 2 is controlled via the release lever 3 from the safety catch 15 of the hammer 1.

In the FIGS. 5 and 6 the extraction device described above is shown in a position after a Zündersager. The hammer 1 and the spring abutment 10 are not held by the sear 2, since the shutter, not shown, has performed no Repetierbewcgung. In this position, the compression spring 11 according to FIG. 6 relaxed. How out FIG. 5 seen, the cam 26 engages the hammer 1 in this position in the recess 30 of the release lever 3 and holds the trigger 4 on the trigger rod 5 and the trigger lever 3 in a forward position with a long withdrawal path. Also in this position is the trigger rod catch 21 in the fire door 20 of the hammer 1, so that the Abzugsvorrichrung can be operated with but then longer withdrawal path and increased deduction weight.

Claims (11)

1. Trigger device for a hand fire arm with a striker lever (1), a pawl (2) associated with the striker lever (1), a release lever (3), a trigger (4), a trigger rod (5) connected to the trigger (4), and a striker spring (6) which forces the striker lever (1) in the firing direction, characterised in that arranged on the striker lever (1) there is a cam (26) which is engaged with the release lever (3) and by which the trigger (4) is held in a retracted position with a reduced trigger movement in a partially cocked position of the striker lever (1) by means of the release lever (3) and the trigger rod (5) co-operating with it.
2. Trigger device according to claim 1, characterised in that a compression spring (11) acting against the striker spring (6) engages on the striker lever (1).
3. Trigger device according to claim 2, characterised in that the compression spring (11) is clamped between the striker lever (1) and a moving spring abutment (10).
4. Trigger device according to claim 3, characterised in that the spring abutment (10) exhibits a spring abutment catch (38) for engagement with a pawl catch (14) of the pawl (2).
5. Trigger device according to claim 3 or 4, characterised in that the spring abutment (10) is arranged rotatably on a striker lever pin (9) together with the striker lever (1).
6. Trigger device according to one of claims 3 to 5, characterised in that the spring abutment (10) is arranged inside a slot (23) in the striker lever (1).
7. Trigger device according to one of claims 3 to 6, characterised in that the spring abutment (10) comprises a stop face (25) to bear on a bearing face (24) of the striker lever (1).
8. Trigger device according to one of claims 3 to 7, characterised in that the spring abutment (10) exhibits a bearing face (39) with a retaining pin (40) for the front end of the compression spring (11).
9. Trigger device according to one of claims 1 to 8, characterised in that the striker lever (1) comprises a blind hole (22) to receive the rear end of the compression spring (11).
10. Trigger device according to one of claims 1 to 9, characterised in that the release lever (3) comprises a limb (31) which projects downwards, and a slot (32) for engagement of the trigger rod catch (21).
11. Trigger device according to one of claims 1 to 10, characterised in that the release lever (3) comprises a lug (29) and a recess (30) for engagement with the cam (26) of the striker lever (1).

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