Trigger system of a firearm

Abstract

A trigger system has a trigger rod which is mounted in the slide so as to be rotatable about a rotational axis such that, due to the relocation of the trigger rod out of the handle piece and into the slide, a significantly flatter firearm is provided. The interrupter lever arm simultaneously acts on a safety body which is preloaded in the direction of the interrupter lever arm via a safety spring and acts as a firing pin safety device, which, when the interrupter is in the neutral position of the interrupter, engages in a groove of the firing pin to lock it and can be released from the groove by the action of the interrupter lever arm against the force of the safety spring.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS

[0001] The Application hereby claims priority to Patent Cooperation Treaty Application No. PCT / DE2023 / 100981 entitled “TRIGGER SYSTEM OF A FIREARM” filed Dec. 19, 2023. This Application hereby claims priority to German Patent Application No. 10 2022 134 829 entitled “ABZUGSYSTEM EINER SCHUSSWAFFE” filed on Dec. 27, 2022.

[0002] A portion of the disclosure of this patent document contains material that is subject to copyright protection. The copyright owner has no objection to the reproduction of the patent document or the patent disclosure, as it appears in the U.S. Patent and Trademark Office patent file or records, but otherwise reserves all copyright rights whatsoever.FEDERALLY SPONSORED RESEARCH AND DEVELOPMENT

[0003] Not ApplicableBACKGROUND OF THE INVENTION

[0004] The invention relates to a trigger system of a firearm, comprising a lock with a lower part with functional elements for interacting with an upper region of a handle part of the firearm and comprising a trigger that acts on a trigger rod which releases a firing pin in order to at least indirectly fire a shot, via an interrupter.

[0005] Historically, the first trigger systems of the aforementioned type (Colt Government 1911) used rotary hammer preloads that were directly preloaded via a spring. The cartridge magazines used for this weapon were consistently single-stack.

[0006] In order to minimize as far as possible a shift in mass with the associated shift in the center of gravity of the firearm, the next step was to use firearms with a firing pin mounted on a linear slide (for example, Walther Creed PPX). However, it has been shown that due to the placement of a trigger rod required for a trigger to act on the other trigger system in the handle part, and here in particular in the vicinity and usually to the side of a magazine well, a desired flat design of the handle part and thus of the entire firearm is not possible.SUMMARY OF THE INVENTION

[0007] The task of the invention is therefore to create a trigger system that enables the creation of a handle piece suitable for a wide double-row magazine, which is nevertheless significantly flatter than the known trigger systems.

[0008] For a trigger system of the aforementioned type, this task is solved according to the invention in that the trigger rod, which is rotatably mounted about a rotational axis, is mounted in the lock.

[0009] Preferred embodiments of the invention are the subject matter of the subclaims, the elements of which act in the sense of a further improvement of the approach to solving the problem underlying the invention.

[0010] In the trigger system according to the invention, using the feature combination wherein the trigger rod, which is mounted so as to be rotatable about a rotational axis, is mounted in the lock, it is achieved that, due to the relocation of the trigger rod out of the handle piece and into the lock, the design of the handle piece and thus also the design of the entire weapon is made possible in a significantly flatter design compared to known weapons.

[0011] In connection with the rotatably mounted trigger rod, the trigger system according to the invention is particularly suitable for a trigger system with a firing pin that can be accelerated indirectly, which for the purpose of firing a shot, can be accelerated via a striker which is preloaded by a striker spring when the shot is fired by expansion of the striker spring and can impact of the accelerated striker on the firing pin in the direction of a cartridge located in a cartridge chamber of the barrel of the firearm. The trigger rod is designed to hold the striker in a cocked position until the trigger is actuated and the associated rotation occurs.

[0012] According to a first preferred embodiment of the trigger system according to the invention, the trigger rod for firing a shot interacts with an interrupter that is movably mounted rotatably as well as linearly. This measure works synergistically with the above-mentioned advantage whereby the design of the handle piece and thus also of the overall weapon is made possible in a significantly flatter version compared to the known weapons.

[0013] According to another preferred embodiment of the trigger system according to the invention, the interrupter has an interrupter body which is mounted in a cavity of an insert that acts as the main component carrier, with said carrier having a straight lower surface which is opposite a straight inner sliding surface of the cavity of the insert and has a concavely curved rotation surface which partially encloses a cylindrical pin fixedly mounted in the handle part. The insert is preferably releasably embedded in the handle piece.

[0014] According to a further preferred embodiment of the trigger system according to the invention, the interrupter comprises a lever arm connected to the interrupter body, which lever arm at least partially protrudes from the cavity of the insert and contains an activation tip cooperating with the trigger rod. The pin can preferably be formed by a dismantling lever.

[0015] The interrupter body is, moreover, preferably preloaded via a spring in the direction of the straight inner sliding surface of the cavity as well as in the direction of a limiting surface of the cavity close to the handle of the handle piece. The spring is typically formed by a leaf spring supported on the pin or a tension spring.

[0016] A trigger of the weapon is preferably configured to raise the lower surface of the interrupter body by a predetermined amount within the cavity, thereby moving an activation tip of the interrupter lever arm in the direction of an end of an activator arm of the trigger rod.

[0017] For the purpose of increased safety, when the interrupter body is raised within the cavity by a predetermined amount, a movement occurs of the activation tip of the interrupter lever arm in the direction of a lower surface of the activator arm of the trigger rod and simultaneously in the direction of a lower surface of an activation part of the safety body with the trigger rod, which activation part is arranged adjacent to one end of the activator arm.

[0018] The activator arm of the trigger rod can, moreover, generally be preloaded in the direction of one end of the interrupter lever arm via a trigger rod spring provided for this purpose, wherein a predetermined distance is formed between one end of the activator arm of the trigger rod and the activation tip of the interrupter lever arm in the neutral rest position of the trigger.

[0019] Beyond the rotational axis, the trigger rod has a coupling arm opposite the activator arm, which coupling arm is preferably provided with a projection that, in the neutral rest position of the trigger rod, engages in a recess of the striker in order to lock it against the striker spring when it is in cocked state.

[0020] The neutral rest position of the trigger rod is usually determined by a force-fit by a corresponding preloading of the trigger rod spring acting on the trigger rod and by a form-fit by limiting an inner recess of the lock receiving the trigger rod.

[0021] A shot is fired in the trigger system according to the invention by the action of the interrupter lever arm on the activator arm of the trigger rod by way of a release of the projection of the coupling arm of the trigger rod out of the recess of the striker with the effect of an acceleration of the striker in the direction of a stop surface of the firing pin, by the action of the expanding striker spring, and the resulting acceleration of the firing pin on a cartridge located in the cartridge chamber of the barrel of the firearm.

[0022] According to a further preferred embodiment of the trigger system according to the invention, it is provided that when the interrupter lever arm acts on the activator arm of the trigger rod, the interrupter lever arm simultaneously acts on a safety body which is preloaded in the direction of the interrupter lever arm via a safety spring and acts as a firing pin safety device, which, when the interrupter is in the neutral position of the interrupter, engages in a groove of the firing pin to lock it and can be released from the groove by the action of the interrupter lever arm against the force of the safety spring.

[0023] In the neutral position of the interrupter, the safety body, in a further function, preferably forms an obstruction body, which is movably mounted between the striker and the firing pin and which, in a further safety function, prevents pulse transmission from the striker to the firing pin.

[0024] The trigger system according to the invention, moreover, includes the function that, following a movement of the lock in the opposite projectile movement in connection with a firing of a shot and subsequent return movement of the lock to its neutral starting position, a relative movement between the striker and the trigger rod takes place by interaction of a tension pawl fixedly attached to the striker with a hammer strut rotatably mounted in the handle piece for the purpose of compressing the striker spring driving the striker.

[0025] The hammer strut can preferably be preloaded via a preload spring provided for this purpose in order to protrude from the handle piece in the direction of the lock, and the tension pawl is designed as a projection of the striker aligned in the direction of the handle piece, which is arranged to contact a catch surface of the tension pawl when the lock moves back into its starting position.

[0026] The hammer strut preferably has an inclined flank on the back, which is arranged in such a way that when the lock moves back to its neutral starting position, an impact body attached to the lock causes the hammer strut to rotate about its rotational axis against the force of the preload spring in order to convey the hammer strut into the handle piece and thereby release the tension pawl from the hammer strut and enable the lock to move back further.

[0027] Following a compression of the striker spring, the projection of the coupling arm of the trigger rod engages in the recess of the striker through the action of the trigger rod spring in order to lock it again in the cocked state.

[0028] The trigger system according to the invention, moreover, preferably includes the function that, following an engagement of the projection of the trigger rod in the recess of the striker, the trigger rod fixed in the lock moves together with the lock towards its initial position before the firing of a shot, wherein a front limiting surface of the activation part of the safety body moving with the trigger rod pushes the interrupter body back within its cavity in the firing direction until a part of the rotation surface of the interrupter close to the interrupter lever arm adjoins the pin.

[0029] Following an engagement of the projection of the trigger rod in the recess of the striker, the trigger rod fixed in the lock can be moved together with the lock towards its initial position before the firing of a shot by the action of a lock closing spring, wherein a front limiting surface of the activation part of the safety body moving with the trigger rod adjoining the activation tip of the interrupter lever arm pushes the interrupter body back within the cavity in the firing direction until a part of the rotation surface of the interrupter close to the interrupter lever arm adjoins the pin.

[0030] The front limiting surface of the activation part of the safety body moving with the trigger rod is preferably arranged at an angle in order to press the activation tip of the interrupter lever arm under the activator arm of the trigger rod.

[0031] After the part of the rotation surface of the interrupter that is close to the interrupter lever arm adjoins the pin, the interrupter body rotates clockwise around the pin, whereby the interrupter body returns to its neutral home position before the firing of the shot, which releases the contact of the activator arm with the interrupter lever arm.BRIEF DESCRIPTION OF DRAWINGS

[0032] The trigger system according to the invention is elucidated below with reference to a preferred embodiment, which is shown in the figure in the drawing. Wherein:

[0033] FIG. 1 shows a preferred embodiment of the trigger system according to the invention in a neutral rest position before trigger activation for the purpose of firing a shot in a partial side view and partial cross-sectional view;

[0034] FIG. 2 shows the preferred embodiment of the trigger system according to the invention shown in FIG. 1 in a successive further phase of firing a shot;

[0035] FIG. 3 shows the preferred embodiment of the trigger system according to the invention shown in FIG. 1 in a successive further phase of firing a shot;

[0036] FIG. 4 shows the preferred embodiment of the trigger system according to the invention shown in FIG. 1 in a successive further phase of firing a shot;

[0037] FIG. 5 shows the preferred embodiment of the trigger system according to the invention shown in FIG. 1 in a successive further phase of firing a shot;

[0038] FIG. 6 shows the preferred embodiment of the trigger system according to the invention shown in FIG. 1 in a successive further phase of firing a shot;

[0039] FIG. 7 shows the preferred embodiment of the trigger system according to the invention shown in FIG. 1 in a successive further phase of firing a shot;

[0040] FIG. 8 shows the preferred embodiment of the trigger system according to the invention shown in FIG. 1 in a successive further phase of firing a shot;

[0041] FIG. 9 shows the preferred embodiment of the trigger system according to the invention shown in FIG. 1 in a successive further phase of firing a shot;

[0042] FIG. 10 shows the preferred embodiment of the trigger system according to the invention shown in FIG. 1 in a successive further phase of firing a shot;

[0043] FIG. 11 shows the preferred embodiment of the trigger system according to the invention shown in FIG. 1 in a successive further phase of firing a shot.DETAILED DESCRIPTION OF THE INVENTION

[0044] The trigger system 100 according to the invention shown in FIG. 1 through FIG. 11 is provided for a firearm which comprises a lock 110 with a lower part with functional elements for interacting with an upper region of a handle part of the firearm and comprising a trigger 160 that acts on a trigger rod 140, which releases a firing pin 150 in order to at least indirectly fire a shot, via an interrupter 130.

[0045] The trigger rod 140 is rotatably mounted in the lock 110 about a rotational axis 144 and interacts with an interrupter 130 that is movably mounted rotatably as well as linearly, to fire a shot.

[0046] In the trigger system 100 according to the invention, wherein a firing pin 150 is provided, which, for the purpose of firing a shot, can be accelerated via a striker 170 which is preloaded by a striker spring 171 when the shot is fired by expansion of the striker spring 171 and can impact of the accelerated striker 170 on the firing pin 150 in the direction of a cartridge 300 located in a cartridge chamber 210 of the barrel 200 of the firearm.

[0047] As shown in the figures, the interrupter 130 comprises an interrupter body 131 which is mounted in a cavity 181 of an insert 180 that acts as a main component carrier, with said carrier having a straight lower surface 132, which is opposite a straight inner sliding surface 182 of the cavity 181 of the insert 180 and has a concavely curved rotation surface 183 which partially encloses a cylindrical pin 184 fixedly mounted in the handle part. The insert 180 is releasably embedded in the handle piece 120.

[0048] The interrupter 130 comprises a lever arm 133 connected to the interrupter body 131, which lever arm at least partially protrudes from the cavity 181 of the insert 180 and comprises an activation tip 139 cooperating with the trigger rod. In the trigger system 100 shown in the figures, the pin 184 is formed by a dismantling lever.

[0049] The interrupter body 131 is preloaded via a spring 135 in the direction of the straight inner sliding surface 182 of the cavity 181 as well as in the direction of a limiting surface 185 of the cavity 181 close to the handle 121 of the handle piece 120. The spring 135 is formed by a leaf spring supported on the pin 184.

[0050] The trigger 160 of the weapon is configured to raise the lower surface 132 of the interrupter body 131 by a predetermined amount within the cavity 181, thereby moving an activation tip 134 of the interrupter lever arm 133 in the direction of an end 142 of an activator arm 141 of the trigger rod 140.

[0051] When the interrupter body 131 is raised within the cavity 181 by a predetermined amount, a movement occurs of the activation tip 134 of the interrupter lever arm 133 in the direction of a lower surface of the activator arm 141 of the trigger rod 140 and simultaneously in the direction of a lower surface 194 of an activation part 192 of the safety body 190 with the trigger rod 140, which activation part is arranged adjacent to one end 142 of the activator arm 141.

[0052] The activator arm 141 of the trigger rod 140 is pretensioned towards one end of the interrupter lever arm 133 via a trigger rod spring 143, with a predetermined distance being formed between one end 142 of the activator arm 141 of the trigger rod 140 and the activation tip 134 of the interrupter lever arm 133 in the neutral rest position of the trigger 160.

[0053] Beyond the rotational axis 144, the trigger rod 140 has a coupling arm 145 opposite the activator arm 141, which coupling arm is provided with a projection 146, which engages in a recess 172 of the striker 170 in the neutral rest position of the trigger rod 140 in order to lock it against the striker spring 171 in the cocked state.

[0054] The neutral rest position of the trigger rod 140 is determined by a force-fit by corresponding pretension of the trigger rod spring 143 that acts on the trigger rod 140 and by a form-fit by a limitation of an inner recess of the lock 110 receiving the trigger rod 140.

[0055] As shown in FIG. 3 and FIG. 4, a shot is fired by the action of the interrupter lever arm 133 on the activator arm 141 of the trigger rod 140 by way of a release of the projection 146 of the coupling arm 145 of the trigger rod140 from the recess 172 of the striker 170 with the effect of an acceleration of the striker 170 in the direction of a stop surface of the firing pin 150 by the action of the expanding striker spring 171 and the resulting acceleration of the firing pin on a cartridge 300 located in the cartridge chamber 210 of the barrel 200 of the firearm.

[0056] When the interrupter lever arm 133 acts on the activator arm 141 of the trigger rod 140, the interrupter lever arm 133 simultaneously acts on a safety body 190 (see FIG. 1 through FIG. 4) which is preloaded in the direction of the interrupter lever arm 133 via a safety spring 191, that acts as a firing pin safety device, which in the neutral position of the interrupter 130 engages in a groove 151 of the firing pin 150 in a locking manner and can be released from the groove 151 by the action of the interrupter lever arm 133 against the force of the safety spring 191.

[0057] In the neutral position of the interrupter 130, the safety body 190 forms an obstruction body mounted so that it can slide between the striker 170 and the firing pin 150, which in a further safety function prevents pulse transmission from the striker 170 to the firing pin 150.

[0058] Following a movement of the lock 110 in the opposite direction to the projectile movement in connection with the firing of a shot (FIG. 7) and the subsequent return movement of the lock 110 to its neutral starting position (FIG. 8 and FIG. 9), a relative movement between the striker 170 and the trigger rod 140 takes place through the interaction of a tension pawl 173 fixedly attached to the striker 170 with a hammer strut 122 rotatably mounted in the handle piece 120 for the purpose of compressing the striker spring 171 driving the striker 170.

[0059] The hammer strut 122 is preloaded via a preload spring in order to protrude from the handle piece 120 in the direction of the lock 110, and the tension pawl 173 is formed as a projection 146 of the striker 170 aligned in the direction of the handle piece 120, which is arranged to contact a catch surface of the tension pawl 173 when the lock 110 is moved back to its initial position.

[0060] The hammer strut 122 has an obliquely arranged flank 124 at the rear, which is arranged in such a way that when the lock 110 is moved back into its neutral starting position, an impact body attached to the lock 110 causes the hammer strut 122 to rotate about its rotational axis 225 against the force of the preload spring, this in order to convey the hammer strut 122 into the handle piece 120 and thereby release the tension pawl 173 from the hammer strut 122 and enable a further return movement of the lock 110.

[0061] Following a compression of the striker spring, the projection 146 of the coupling arm 145 of the trigger rod engages in the recess 172 of the striker 170 through the action of the trigger rod spring in order to once again lock it in the cocked state.

[0062] Following an engagement of the projection 146 of the trigger rod in the recess 172 of the striker 170, the trigger rod 140 fixedly mounted in the lock 110 moves together with the lock 110 in the direction of its initial position before firing a shot by the action of a lock closing spring not shown, wherein a front limiting surface 193 of the activation part 192 of the safety body 190 moving with the trigger rod 140 adjoining an activation tip 134 of the interrupter lever arm 133 pushes the interrupter body 131 back within the cavity 181 in the firing direction until a part of the rotation surface 183 of the interrupter 130 close to the interrupter lever arm 133 adjoins the pin 184. (FIG. 10)

[0063] The front limiting surface 193 of the activation part 192 of the safety body 190 moving with the trigger rod 140 is arranged at an angle in order to press the activation tip 134 of the interrupter lever arm 133 under the activator arm 141 of the trigger rod 140.

[0064] After the part of the rotation surface 183 of the interrupter 130 that is close to the interrupter lever arm 133 adjoins the pin 184, the interrupter body 131 rotates clockwise around the pin 184, whereby the interrupter body 131 returns to its neutral home position before the firing of the shot, which releases the contact of the activator arm 141 with the interrupter lever arm 133. (FIG. 11)

[0065] The above-described embodiment example of the invention merely serves the purpose of a better understanding of the teaching according to the invention as specified by the claims, which, as such, is not limited by the embodiment example.LIST OF REFERENCE SYMBOLS100 Trigger system

[0067] 110 Lock

[0068] 120 Handle piece

[0069] 121 Handle

[0070] 122 Hammer strut

[0071] 124 Flank

[0072] 130 Interrupter

[0073] 131 Interrupter body

[0074] 132 Lower surface of the interrupter body

[0075] 133 Interrupter lever arm

[0076] 134 Activation tip of the interrupter lever arm

[0077] 135 Interrupter spring

[0078] 136 Lower surface of the interrupter lever arm

[0079] 140 Trigger rod

[0080] 141 Activator arm

[0081] 142 End of the activator arm of the trigger rod

[0082] 143 Trigger rod spring

[0083] 144 Rotational axis of the trigger rod

[0084] 145 Coupling arm

[0085] 146 Projection of the trigger rod

[0086] 150 Firing pin

[0087] 151 Groove of the firing pin

[0088] 160 Trigger

[0089] 170 Striker

[0090] 171 Striker spring

[0091] 172 Recess of the striker

[0092] 173 Tension pawl

[0093] 180 Insert

[0094] 181 Cavity of the insert

[0095] 182 Sliding surface of the cavity

[0096] 183 Rotation surface

[0097] 184 Pin, also serving as dismantling lever

[0098] 185 Limiting surface

[0099] 190 Safety body

[0100] 191 Safety spring

[0101] 200 Barrel

[0102] 210 Cartridge chamber

[0103] 225 Rotational axis of the hammer strut

Claims

1. A firearm comprising:a lock;a trigger rod rotatably mounted to the lock when the firearm is assembled;a trigger rod spring configured to bias a forward end of the trigger rod to a neutral position; andan interrupter configured to move the forward end of the trigger rod from the neutral position as a trigger of the firearm is actuated.

2. The firearm of claim 1, wherein:the trigger rod spring biases the forward end of the trigger rod down; andthe interrupter is configured to lift the forward end of the trigger rod when the trigger of the firearm is actuated.

3. The firearm of claim 1, wherein:in the lock is a slide.

4. The firearm of claim 1, wherein:the activator rod is the portion of the trigger rod forward of a rotational axis of the trigger rod.

5. The firearm of claim 1, wherein:the activator rod is the portion of the trigger rod forward of a rotational axis of the trigger rod; andthe forward end of the trigger rod is an end of the activator arm opposite the end of the activator arm at the rotational axis of the trigger rod.

6. The firearm of claim 1, wherein:the firearm further comprises a striker;the trigger rod has a projection at a rear end of the trigger rod; andthe projection is configured to engage the striker and prevent forward motion of the striker when the trigger rod is in the neutral position.

7. The firearm of claim 1, wherein:the firearm further comprises a striker;the trigger rod has a projection at a rear end of the trigger rod;the projection is configured to engage the striker and prevent forward motion of the striker when the trigger rod is in the neutral position;the projection engages a recess of the striker when the trigger rod is in the neutral position;the projection is configured to move down from the recess of the striker as the interrupter moves the trigger rod from the neutral position as the trigger is actuated.

8. A firearm comprising:a striker;a trigger rod configured to engage the striker and retain the striker in a cocked position of the striker when the trigger rod is in a neutral position of the trigger rod; anda safety body configured to block forward movement of a firing pin of the firearm when the trigger rod of the firearm is in the neutral position.

9. The firearm of claim 8, wherein:the firing pin is a front end of the striker.

10. The firearm of claim 8, wherein:the firearm further comprises an interrupter configured to move a forward end of the trigger rod from the neutral position as a trigger of the firearm is actuated.

11. The firearm of claim 8, wherein:the firearm further comprises an interrupter configured to move a forward end of the trigger rod from the neutral position as a trigger of the firearm is actuated; anda portion of the trigger rod forward of a rotational axis of the trigger rod is an activator rod.

12. The firearm of claim 8, wherein:the safety body blocks forward movement of the firing pin when the trigger rod of the firearm is in the neutral position by engaging a groove of the firing pin.

13. The firearm of claim 8, wherein:the firearm further comprises an interrupter configured to move a forward end of the trigger rod from the neutral position as a trigger of the firearm is actuated;a portion of the trigger rod forward of a rotational axis of the trigger rod is an activator rod;the safety body blocks forward movement of the firing pin when the trigger rod of the firearm is in the neutral position by engaging a groove of the firing pin; andthe safety body is moved from the groove of the firing pin as the activator rod is moved from the neutral position by the interrupter as the trigger of the firearm is actuated.

14. The firearm of claim 8, wherein:the firearm further comprises an interrupter configured to move a forward end of the trigger rod from the neutral position as a trigger of the firearm is actuated;a portion of the trigger rod forward of a rotational axis of the trigger rod is an activator rod; andthe safety body is moved with the activator rod by the interrupter as the trigger of the firearm is actuated such that the safety body allows forward movement of the firing pin as the trigger of the firearm is actuated.

15. The firearm of claim 8, wherein:the firearm further comprises an interrupter configured to move a forward end of the trigger rod from the neutral position as a trigger of the firearm is actuated;a portion of the trigger rod forward of a rotational axis of the trigger rod is an activator rod;the firearm further comprises a safety spring configured to bias the safety body toward the interrupter; andthe safety body is moved with the activator rod by the interrupter against the force of the safety spring as the trigger of the firearm is actuated such that the safety body allows forward movement of the firing pin as the trigger of the firearm is actuated.

16. The firearm of claim 8, wherein:the firearm further comprises an interrupter configured to move a forward end of the trigger rod from the neutral position as a trigger of the firearm is actuated;a portion of the trigger rod forward of a rotational axis of the trigger rod is an activator rod; andthe safety body is moved simultaneously from a neutral position with the activator rod by the interrupter as the trigger of the firearm is actuated such that the safety body allows forward movement of the firing pin as the trigger of the firearm is actuated.

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