Self-loading pistol with a pre-cocked firing pin with an assembly for safe disassembling

Abstract

A self-loading pistol with a pre-cocked firing pin and with an assembly for safe disassembling, comprising a trigger bar (7) with a peripherally at least partly closed frame part (7c) to surround a pistol magazine (39). The frame part (7c) having, with respect to the shooting direction, a vertical surface (7m) arranged on its rear side, and on the front side, a lug (7f) for catching a firing pin (3). The trigger bar (7) is arranged in the pistol frame on a cross pin (29) that crosses the vertical surface (7m). The trigger bar (7) is moveable by means of a trigger (15). In the pistol frame, over the trigger bar (7), a disassembling lever (11) is arranged that has a button (11d) and a pivot (11a) that carries a cam (18) for engagement with the trigger bar (7). The cross pin (29) passes through a guide cam (7e) arranged in the vertical surface (7m). The vertical surface (7m) has, at its side facing the magazine (39), a contact surface (7i) for the magazine (39). An arm (7k) protrudes from the frame part (7c) at its front side with respect to the shooting direction. A pulling thumb (7a) and at a distance from it, a support stop (7j) being arranged at the free end of the arm (7k). The cam (18) has a nose (18a) at one side and a protrusion (18b) at the opposite side. The nose (18a) reaches between the pulling thumb (7a) and the supporting stop (7j) of the trigger bar (7). The protrusion (18b) is bringable into a recess (1a) at the facing side of the slide (1).

Claims

1. A self-loading pistol with a pre-cocked firing pin and with an assembly for safe disassembling, comprising a trigger bar (7) with a peripherally at least partly closed frame part (7c) to enclose a pistol magazine (39), the frame part (7c) having a vertical surface (7m) arranged on its rear side in a direction of fire, and on a rear side of the vertical surface, a lug (7f) for catching a firing pin (3), wherein the trigger bar (7) is arranged in a pistol frame on a cross pin (29) that passes through the vertical surface (7m), and the trigger bar (7) is moveable by means of a trigger (15), and, in the pistol frame over the trigger bar (7), a disassembling lever (11) is arranged, which has a button (11d) and a pivot (11a) that carries a cam (18) for engagement with the trigger bar (7), characterized in that the cross pin (29) passes through a guide cam (7e) arranged in the vertical surface (7m), and the vertical surface (7m) has, at a side facing the magazine (39), a contact surface (7i) for the magazine (39), and an arm (7k) protrudes from the frame part (7c) at a front side in the direction of fire, and a free end of the arm (7k) includes a pulling thumb (7a) and a support stop (7j) spaced from the pulling thumb (7a), wherein the cam (18) has a nose (18a) at one side and a protrusion (18b) at the opposite side, and the nose (18a) reaches between the pulling thumb (7a) and the supporting stop (7j) of the trigger bar (7) while the protrusion (18b) can be inserted into a recess (1a) at a facing side of a slide (1).

2. The self-loading pistol according to claim 1, characterized in that the cam (18) is arranged on the pivot (11a) of the disassembling lever (11) in a non-rotary and dismountable way.

3. The self-loading pistol according to claim 1, characterized in that the trigger bar (7) is pre-tensioned towards the slide (1).

4. The self-loading pistol according to claim 1, characterized in that two hooks (7h) are arranged symmetrically at a bottom edge of the vertical surface (7m), and pulling springs (22) of the trigger bar (7) are connected to the hooks (7h).

5. The self-loading pistol according to claim 1, characterized in that the guide cam (7e) in the vertical surface (7m) has a curved shape with raised ends.

Description

BRIEF DESCRIPTION OF DRAWINGS

(1) Examples of the design of a self-loading pistol with a pre-cocked firing pin with an assembly for safe disassembling according to the present invention are shown in the attached drawings, wherein the individual figures illustrate:

(2) FIG. 1 detailed view of the trigger bar;

(3) FIG. 2 first example of an embodiment of the trigger bar assembly;

(4) FIG. 3 second example of an embodiment of the trigger bar assembly;

(5) FIG. 4a disassembling lever with a cam

(6) FIG. 4b disassembling lever with a cam in another view

(7) FIG. 5a cam of the disassembling lever

(8) FIG. 5b cam of the disassembling lever in another view

(9) FIG. 6 disassembling lever without the cam mounted

(10) FIG. 7 pistol with an inserted magazine

(11) FIG. 8 pistol with the magazine removed

(12) FIG. 9 pistol with the magazine removed and the trigger bar shifted

(13) FIG. 10 pistol with the slide at the front end stroke

(14) FIG. 11 pistol with the slide in the slide-open position

(15) FIG. 12 pistol with the trigger bar at the start of the disassembling position

(16) FIG. 13 disengagement of the locking part of the cam of the trigger bar from the control pin

(17) FIG. 14 positions during releasing the slide from the pistol frame

(18) FIG. 15 detail of the disassembling lever cam entering the recess in the slide

(19) FIG. 16 detail of the disassembling lever cam engaging the recess in the slide

(20) FIG. 17 detail of the disassembling lever loading with a recoil spring

EXAMPLES OF EMBODIMENTS

(21) The self-loading pistol with a pre-cocked firing pin with an assembly for safe disassembling has a trigger bar 7, which, in the exemplary embodiment, is shown in detail in FIG. 1. FIGS. 2 and 3 then illustrate two examples of the assembly of the trigger bar 7 that only differ in the mounting of the springs 22.

(22) The trigger bar 7 has a peripherally at least partially closed frame part 7c to enclose the magazine 39 of the pistol. The frame part 7c has a vertical surface 7m, arranged at the rear side with respect to the direction of fire, with a block control 7d at the top side and with a lug 7f to catch the firing pin 3, and with a lowering thumb 7g at the front side. Trigger 15 revolves around trigger pin 35. When the trigger 15 is pulled, the lowering thumb 7g moves on the ramp on the disconnector 10 (See FIG. 2, 3) of the trigger bar to lower the entire trigger bar 7, including its lug 7f, subsequently causing that the firing pin 3 is released and the round in the chamber is fired.

(23) The trigger bar 7 is mounted in the pistol frame on a cross pin 29 passes through the guide cam 7e, arranged in the vertical surface 7m. The trigger bar 7 is reset by means of the trigger 15, and in the pistol frame over the trigger bar 7, a disassembling lever 11 is arranged with a button 11d and a pivot 11a that carries a cam 18 for engagement with the trigger bar 7 (see FIGS. 4a, 4b). Through surface of pivot 11a, there comes groove 11c which locks the disassemble lever 11 via slide stop spring 21 in the directional axis of the pivot 11a. The separate disassembling lever 11 is shown in FIG. 6.

(24) As shown in FIG. 1, the vertical surface 7m has, at the side facing the magazine 39, a contact surface 7i for the magazine 39. A vertical guiding groove 7b to receive the pin 28 of the trigger bar as well as an arm 7k protrude from the front side, in the direction of fire, of the part frame part 7c, wherein a pulling thumb 7a and, at a distance from it, a supporting stop 7j are arranged at the free end of the arm 7k.

(25) The cam 18 (see FIGS. 5a, 5b) has a nose 18a at one side and a protrusion 18b at the opposite side, wherein the nose 18a reaches between the pulling thumb 7a and the supporting stop 7j of the trigger bar 7 (see FIGS. 2, 3), while the protrusion 18b can be inserted into the recess 1a at the facing side of the slide 1 (see FIG. 16).

(26) A vertical guiding groove 7b to receive the pin 28 (see FIGS. 2 and 3) of the trigger bar and the arm 7k protrude from the front side, in the direction of fire, of the frame part 7c. The arm 7k may be made integral with the frame part 7c, or it may be attached to the frame part 7c, e.g., by pressing onto a pin.

(27) A pulling thumb 7a and, at a distance from it, a supporting stop 7j are attached to the free end of the arm 7k. The cam 18 has a nose 18a with a stop 18c at one side and a protrusion 18b at the opposite side. The nose 18a engages the pulling thumb 7a of the trigger bar, and the stop [18e] 18c delimits the position of the trigger 15 by bearing on the supporting stop 7j of the trigger bar 7, while the protrusion 18b can be inserted into the recess 1a at the facing side of the slide 1 (see FIGS. 15, 16).

(28) The end of the trigger bar 7 with the vertical surface 7m is pre-tensioned towards the slide 1 by means of springs 22 (see FIGS. 2, 3).

(29) In the embodiment of FIG. 2, two hooks 7h are symmetrically arranged at the bottom edge of the vertical surface 7m to which the draw springs 22 of the trigger bar 7 are connected.

(30) The guide cam 7e in the vertical surface 7m has a banana-like curved shape with raised ends (see FIGS. 1, 2).

(31) If the user attempts to rotate the disassembling lever 11 into its disassembling position when the magazine 39 is inserted into the grip magazine well 13, the disassembling lever 11 pulls the trigger bar 7. The trigger bar 7, during its movement derived from the movement of the disassembling lever 11, seats on the magazine 39 and its further movement is stopped (see FIG. 7). This will also stop the movement of the disassembling lever 11 and the user is prevented from continuing the disassembling.

(32) As soon as the magazine 39 has been removed from the grip magazine well 13, the magazine 39 makes space for the trigger bar 7, as indicated by the dotted line in FIG. 8. On condition the slide 1 is in slide-open position, i.e., it is held by the slide stop 6 of the slide 1 in the rear position, the movement of the trigger bar 7 is released, together with the dependent movement of the disassembling lever 11, and disassembling is enabled. The trigger bar 7 can move inwards into the grip magazine well 13.

(33) With the magazine 39 removed, the disassembling lever 11, and subsequently also the trigger bar 7 can be shifted to their final position for disassembling (see FIG. 9).

(34) FIG. 10 shows the pistol with the slide 1 at the front end stroke. The pistol is cannot be disassembled in this position because the disassembling lever 11 is blocked by the slide 1 via its cam 18. This means that the cam 18 collides with the slide 1 and does not enable the disassembling lever 11 to perform the disassembling movement by rotation. This blocking of the movement of the disassembling lever 11 applies to all positions of the slide 1 except the slide-open position of the slide 1, i.e., when the slide 1 is held by the slide stop 6 as shown in FIG. 11. It is desirable to make disassembling of the pistol possible in this position only, because this ensures that the user must open the slide 1 to the slide-open position before the disassembly, discharging any live cartridge from the chamber that may have remained in the chamber due to a user error.

(35) As soon as the slide 1 is in the slide-open position (see FIG. 11) and there is no magazine 39 present in the grip magazine well 13, the disassembling lever 11 can be rotated to start the disassembling. When the disassembling lever 11 is rotated, the cam 18 of the disassembling lever 11 enters the respective recess 1a in the slide 1 (see FIG. 16), which is only accessible on the slide 1 in this position of the slide 1. To rotate the disassembling lever 11, the user must make a conscious effort, because the disassembling lever 11 is pre-tensioned towards its locked position by the recoil spring 19.

(36) In the course of rotation of the disassembling lever 11 towards the disassembling position (see FIG. 12), after travelling the given safety angular movement, the cam 18 of the disassembling lever 11 gets in contact with the trigger bar 7. This contact initiates the mechanical action of pistol disassembling, which is realized by the disassembling lever 11 pulling, via the cam 18, on the thumb 7a at the front part of the trigger bar 7 (see also the detail in FIG. 16). The pull of the trigger bar 7 causes a shift of its guide cam 7e in its rear part towards the cross pin 29. This way, the entire trigger mechanism is automatically brought into the disassembling mode, and lowering of the lug 7f of the trigger bar 7 away from the collision path with the firing pin leg 3a is started (see also FIG. 13).

(37) FIG. 13 shows that disengagement of the guide cam 7e of the trigger bar 7 from the cross pin 29 has been completed. However, the lug 7f of the trigger bar 7 and the firing pin leg 3a are still in collision with each other, and therefore the firing pin 3 cannot be released and the slide 1 cannot be removed/disassembled either. This collision is desirable and its purpose is safety. It is not provided for the purpose of disassembly as such, but as a safety mechanism to ensure proper reliable functioning, as it is necessary that the collision between the lug 7f of the trigger bar 7 and the firing pin 3a leg only be removed at the very end of the disassembling movement. This way, two important facts are ensured:

(38) Firstly, the disassembling of the pistol only occurs at the very end of the disassembling action. Thus, the user must make a conscious effort to disassemble the firearm, which considerably reduces the risk of inadvertent/unintended disassembly of the firearm.

(39) Secondly, the safety collision between the lug 7f of the trigger bar 7 and the leg 3a of the firing pin is essential for reliability and safety of the weapon during firing, as it ensures that the trigger bar 7 and, consequently, its lug 7f are, in the cocked and ready to shoot state of the trigger mechanism, firmly blocked against movement and that this blocking is active along a considerable path, and thus insensitive to production tolerances.

(40) FIG. 14 shows that to completely remove the collision between the lug 7f of the trigger bar 7 and the firing pin leg 3a, the rotation of the disassembling lever 11 must continue up to its end position, which is approx. 90 angular path from the beginning of its movement. As soon as the disassembling lever 11 is in this end position, the rear part of the trigger bar 7 is lowered below the firing pin leg 3a (see the dotted line in FIG. 14). This way, the collision between the lug 7f of the trigger bar 7 and the firing pin leg 3a is cancelled and the slide 1 can be removed out of the pistol frame after the release of the slide stop 6.

LIST OF REFERENCE SIGNS

(41) 1 slide 1a recess at the facing side of the slide 3 firing pin 3a firing pin leg 6 slide stop 7 trigger bar 7a pulling thumb 7b vertical guiding groove 7c frame part 7d block control 7e guide cam 7f lug 7g lowering thumb 7h hook 7i contact surface 7j supporting stop 7k arm 7m vertical surface 10 trigger bar disconnector 11 disassembling lever 11a pivot 11b stop for the recoil assembly 11c groove for the slide stop spring 11d button 11e lock 11f lock stop 13 grip 15 trigger 16 trigger safety 18 disassembling lever cam 18a nose 18b protrusion 18c stop 19 recoil spring 21 slide stop spring 22 trigger bar springs 28 trigger bar pin 35 trigger pin 39 magazine