EP0861411B1 - Compressed gas-operated shooting weapon - Google Patents

Abstract

PCT No. PCT/EP96/04132 Sec. 371 Date May 14, 1998 Sec. 102(e) Date May 14, 1998 PCT Filed Sep. 21, 1996 PCT Pub. No. WO97/18431 PCT Pub. Date May 22, 1997The invention discloses a compressed gas-operated firearm (1), especially a pistol, which at the utilization of a drum (18) for multi-shot projectile receipt distinguishes itself through a linearly displaceable weapon barrel (3) to achieve a loading position, or, respectively, firing position, and through a trigger (4) which is automatically secured against actuation in the loading position. Furthermore, a new type of valve system (25) is proposed for the impulse-like emission of the compressed gas upon the discharge of a shot.

Description

The invention relates to a compressed gas firearm, in particular a pistol, according to the preamble of the claim 1.

Such a firearm of the generic type is from the US patent 5,160,795 known. This well-known firearm has a frame on which the gun barrel is arranged. Furthermore, a drum for receiving projectiles or Projectile bodies provided which are rotatable about their axis on the Barrel arrangement is set up. The axis of rotation of the drum runs parallel to the longitudinal axis of the gun barrel. The rotary motion and the adjustment of the drum by means of a lever system made with the firearm trigger system in Active connection is established. The gun barrel is together with the drum and the lever system for taking the loading position from the Frame can be swiveled upwards via a front axle. In this pivoted-out position can be replaced with new ones Projectiles are reloaded.

The pivoting action of the barrel assembly is out of the frame not unproblematic because the facilities are also swung out of the lever system and the drum fit in one hand Position must be kept and on the other hand so to construct are that a pivoting of the system parts from the in Firing position rectilinear functional position without damage of the components and possible without functional impairments have to be. This makes such a construction technically complex. In addition, there are fears of gas pressure losses have a negative impact on the firing performance of the firearm.

From the same publication US 5,160,795 and also from the US patent 5,400,536 is for the generic firearm a valve system known in the frame behind the barrel assembly is inserted. This valve system has a valve body, which is sealed to the front and one longitudinally guided valve stem. The chamber around the valve stem is connected to a compressed gas cartridge. The valve stem has a rear pin through which Hammer is fired on the firearm. The front face the valve stem acts on a spring-supported pin, with a conical contact surface at the hole opening of the drum. The valve stem is under the effect a compression spring and is fired by the hammer of the firearm when the trigger is actuated impulsively from its sealing system moved forward, creating channels for gas or air pressure be released. This entire valve arrangement is with many fitting parts, in turn, are technically complex, which by the Swiveling device of the gun barrel with the inserted drum is conditional.

DE 29 38 600 C2 is an ignition pin fuse for a Hand gun revealed. This handgun is like a pistol trained and has a barrel and apparently straight sliding carriage. There is a deduction against the barrel Effect of a spring pivoted, the same time actuated a locking device that in the advance path of Ignition pin engages.

Starting from the aforementioned prior art, it is a task the invention, a pressurized gas firearm at the beginning mentioned type to create, which with relatively few and technical simple components and system parts a safe and simple Handling and function of the firearm guaranteed.

According to the invention, this object is achieved by the features of the patent claim 1 solved. Inventive designs and Further developments are described in subclaims 2 to 7.

According to the solution of the task, the decisive ones Features seen in that the known from the prior art pressurized gas firearm a linearly displaceable Barrel arrangement to move from the firing position in the Loading position and vice versa. Doing so with a Another essential feature ensures that the deduction of the Firearm is automatically locked in the loading position. How explained in detail below has been surprising emphasized that the linear displaceability of the running device and the drum that can be detached from the barrel becomes simple System parts and at the same time too high shooting performance with optimal weapon safety.

Moving the barrel to the firearm's loading position done by spring force as soon as the locking lever on the lock the firearm is manually pivoted into the unlocked position becomes. This will simultaneously remove the axis from the Drum pulled, which then simply for reloading from the Gun frame or breech can be removed. The pulling out the drum axis now causes the first arm of the double arm Swing the lever radially into the theoretical center of the axis. This will automatically move the second arm into the axial Movement path of the slide moves, creating the entire trigger system is blocked.

The fact that the barrel arrangement can be moved in a straight line, the sealing of the valve system is also related relatively easy on the drum. The hollow cylindrical valve lifter lies in the firing position with its front face due to the impulse when the shot is fired directly sealing against the facing bore opening of the drum. This is done in sensible way by utilizing the released compressed gas. Special constructive measures to achieve a Seals are not required on the end face of the ram.

Figur 1

die druckgasbetriebene Schußwaffe in der Seitenansicht;

Figur 2

die Schußwaffe in gesichertem und ungespanntem Zustand gemäß dem Ausschnitt II in Figur 1 im Schnitt;

Figur 3

die Schußwaffe in Feuerstellung gemäß dem Ausschnitt II in Figur 1;

Figur 4

die Sicherstellung des Abzugs bei eingenommener Ladestellung der Schußwaffe im Schnitt;

Figur 5

die Schußwaffe im Schnitt gemäß der Linie V - V in Figur 4;

Figur 6

das Ventilsystem der Schußwaffe im Schnitt.

An example of the invention is shown in the drawing. Show it:

Figure 1

the compressed gas powered firearm in side view;

Figure 2

the firearm in a secured and unclamped state according to section II in Figure 1 in section;

Figure 3

the firearm in firing position according to section II in Figure 1;

Figure 4

ensuring the trigger when the firearm is in the loaded loading position on average;

Figure 5

the firearm in section along the line V - V in Figure 4;

Figure 6

the valve system of the firearm in section.

The compressed gas operated gun 1 consists essentially of the shutter 2 (also called frame), the one in the shutter 2 arranged barrel 3, the trigger system 4 and the handle 5. The front part 6 of the closure 2 receiving the barrel 3 is linearly displaceable from a loading position in a firing position and vice versa. 1 shown view is the firearm 1 in the closed position, which corresponds to the fire position. The Locking lever 7 is in the locking position. On Swiveling the locking lever 7 around the axis 8 leads for unlocking and thus for loading the firearm 1, in which the barrel 3 by spring force support to the front moved beyond the barrel mouth 9 shown in Figure 1 becomes.

The firearm 1 is secured by a safety lever 10, in the position shown a firing pin 11 in the line of action between the hammer or tap 12 and the Tappet 13 (in Figure 6: bolt 57) or the valve tappet 55 for Valve system 25 brings what corresponds to the fire position "F". A manual pivoting of the locking lever 10 down in the position "S" rotates the firing pin 11 from the one described above Line of action in ensuring.

The grip shell of the grip is via a grip button 14 5 open in which there is a compressed gas cartridge or Capsule 15 with, for example, CO2 gas. Here are too other suitable gases and air with appropriate pressure can be used.

In the usual way, the firearm 1 has on the front Running part a grain 16 and on the rear frame part with the sight 16 aligned with the grain 16.

Figure 2 now shows the unclamped and secured firearm 1 in average. All functions and systems in one view to disclose are the essential in the sectional view Components drawn on top of each other and only by different line techniques separated from each other and recognizable. In this respect, this sectional view is a simplified Schematic representation for a better understanding of the Connections. In particular, the control arm 35 is clearly visible depicted and highlighted regardless of its actual, location partially hidden by other components.

In the front closure part 6, the barrel 3 is inserted O-ring 63 recognizable, which abuts the drum 18 on the end face. The bore 19 of the drum 18 is for receiving of projectiles or projectile bodies 20 exactly coaxially to Running hole 21 aligned. The drum 18 is about an axis 22, which is inserted in the inner part, rotatably arranged. The Axle pin 22 is from the central when moving the barrel 3 Bearing hole of the drum 18 pulled out. On the back End face of the drum 18 are drive elements 23, for example a ring of teeth or the like is arranged. Behind the drum 18 is the space 24 for use of a valve system 25, which is explained further below for FIG. 6 becomes.

The trigger 4 is in the trigger housing 26 about the axis 27 according to the Arrow direction 28 pivotable. The trigger 4 has a free short arm 29 which through the joint 30 with a substantially Slide 31 movable on a linear path is. The slider 31 is carried along on the track 32 of the short arm 29 of the trigger 4. In the slide 31 is one Curved track 33 introduced into which a bolt 34 is slidably inserted is that receives a control arm 35 in an articulated manner. This Control arm 35 is pressurized at its free end Spring 36 and engages in the drive elements 23 of the drum 18th to produce a gradual rotary movement of the drum 18 on. For this purpose the tip of the free end of the control arm 35 shaped accordingly.

The slider 31 has above the joint 30 and above the cam track 33 each have an adjusting edge 37 and 38, respectively both are spaced from each other, which ensures that always an adjusting edge 37 or 38 in the end positions of the slider 31 in corresponding adjustment recesses 39 engages on the circumference of the drum 18. The adjustment recesses 39 are located between the drum bores 19 and in interaction with the adjustment edges 37 or 38 of the slide 31 that after rotation of the drum 18th a precisely coaxial position between the control arm 35 Drilled bore 19 and the barrel bore 21 in the firing position becomes.

By pressing the trigger 4 in the direction of arrow 28 Slide 31 moves forward, causing the bolt 34 in the Cam track 33 slides and controls the control arm 35 upwards. Because the tip of the control arm 35 is in the corresponding radial Distance from the longitudinal axis 40 of the drum axis 22 is generated the upward movement of the control arm 35 a gradual Rotary movement of the drum 18 on the axle pin 22.

A trigger rod 41 is also operatively connected to the trigger 4, which in turn with the hammer 12 in a ratchet connection stands. The hammer 12 in turn is under the action a spring 42 which accelerates around the axis 43 pivotable hammer 12 in the direction of the firing pin 11 exercises. Another spring 44 and a leg spring around the Axis 27 counteract the movement of the trigger 4.

The firing pin 11 is by means of the locking lever 10 from the Line of action of the hammer 12 pivoted out and is thus ensuring "S". At the same time, the hammer is 12 together with the trigger rod 41 in an untensioned state. The springs 42 and 44 and the leg spring are located about axis 27 yourself in rest position.

A double-armed lever 45 is around one in the trigger housing 26 Firearm 1 fixed axis bolt 46 to predetermined end positions pivotable under the force of a spring 50. On first arm 48 rests radially on the drum axis under spring force 22 as shown in FIG. 5. Located in this position the second arm 49 is outside the movement path of the Slider 31. The trigger system is therefore free to operate.

Figure 3 shows the compressed gas-powered firearm 1 in firing position "F". The trigger 4 has been moved in the direction of the arrow 28. This moved the slide 31 forward. The control arm 35 was steered upwards in cam track 33 and has the Drum 18 rotated one step, creating a new one Drum bore 19 (if necessary with filled projectile) in position was brought to the bore 21. This position was now by the engagement of the adjustment edge 38 in the adjustment recess 39 of the drum 18 adjusted exactly. The springs 42 and 44 and the Leg spring around axis 27 are tensioned. The hammer 12 is located yourself in the swung out striking position. The firing pin 11 lies in the line of action between hammer 12 and valve lifter 55. The trigger rod 41 is removed from the ratchet connection, so that a shot can be fired.

Figures 4 and 5 illustrate the automatic locking the trigger 4 when the firearm 1 assumes the loading position. In this loading position, barrel 3 is after by spring force Opening the lock by the locking lever 7 to the front moved so that the drum 18 for the purpose of reloading Projectiles 20 can be removed from the trigger housing 26, because by moving the barrel 3 forward with it connected axle 22 of the drum 18 also by was pushed. The first arm 48 of the double-armed lever 45 is due to the force of the spring 50, the one hand on the second arm 49 and on the other hand stationary in the trigger housing 26 supports, in the longitudinal axis 40 of the drum 18 radially swung in. This is only possible if the axle pin 22 is moved out of the drum 18 against which the first arm 48 in the firing position was radial. The second arm 49 is around the Bolt 46 pivoted into the path of movement of the slider 31.

As a result, movement of the slide 31 is blocked, which with a rear nose 51 is against the second arm 49. The Blocking the slide 31 acts because of the element connection on the trigger 4, which in this loading position Firearm 1 cannot be activated.

The projectile 20 is accelerated when the shot is fired in firing position by a high impulse that is on the Projectile 20 acts suddenly. To a valve system 25 a CO2 capsule 15 connected in a conventional manner. The valve system 25 consists of a valve housing 52, through its bottom-side opening is a hollow cylindrical valve lifter 55 is guided, which is sealed by a disk 53 with O-ring 54 is. The front end of the valve lifter 55 is aligned with the drum bore 19 assigned in the firing position. An absolutely tight contact of this face is outside the Shot not required.

The opening of the valve housing 52 through a head is Closed nut 56, which has a central bore, through which a bolt 55 is guided in a longitudinally movable manner. The On the inside of the threaded nut 56, an annular seal 58 is received. The valve lifter 55 has on its threaded nut 56 facing End of a conical extension 59 and lies with that front outer edge of extension 59 on the ring seal 58 sealing. A spring 60 enclosing the valve lifter 55 is based on the bottom of the valve housing 52 on the one hand and the conical extension 59 the valve lifter 55 on the other hand from, whereby the tight contact of the valve lifter 55 on the ring seal 58 is achieved. A channel leads from the CO2 capsule 15 61 in the pressure gas chamber 62 of the valve housing 52, so that in this chamber 62 has a constant gas pressure from the CO2 capsule 15 prevails.

When the shot is fired, the hammer 12 strikes in the manner described Way against the firing pin 11. From this the impact effect transfer directly to the valve lifter 55. The valve lifter 55 releases briefly from the tight contact on the sealing ring 58, causing the gas to suddenly enter the interior of the Vetil tappet 55 flows in and impulses onto the projectile 20 works. At the moment of the effective gas impulse lies the front one Front side of the valve lifter 55 on the drum 18 with Alignment to the drum bore 19 sealing. Because of the Valve system, this dense system is made up of the effective gas in connection with the impact pulse. This valve system 25 allows a safe single shot and also the delivery of one Series of shots with no significant performance impact.

Claims (7)

1. Compressed gas-operated firearm (1), especially a pistol, including a weapon frame (2) or breech block and a weapon barrel (3) arranged thereon, further including a drum (18) with bores (19) arranged in an annular ring for the receipt of cartridges, projectile bodies, projectiles (20) or similar, which are rotatably arranged about an axis (40) in parallel with the longitudinal axis of the weapon barrel (3) and for the rotation thereof and precise alignment of a bore (19) with the bore of the barrel is actuated by a lever system (4,31,35), which is in operative connection with the trigger (4) of the firearm (1), characterized in that the weapon barrel (3) is arranged linearly longitudinally displaceable in the breech block (2) between a firing position and a loading position in a known manner, and in that the trigger (4) in the loading position is automatically secured against actuation.
2. Compressed gas-operated firearm according to claim 1, characterized in that a first arm (48) of a double-armed lever (45), which is rotable around an axis, stands under a spring force radially against the axis (22) of the drum (18), whereas the second arm (49) in the loading position engages into the path of movement of the lever system (4,31,35,41), which is connected with the trigger (4).
3. Compressed gas-operated firearm according to claim 1 or 2, characterized in that there is provided a breech block lever (7), which is arranged on the breech block (2) so as to be rotable around an axis (8) and which unlatches the barrel (3) under a spring force in the firing position.
4. Compressed gas-operated firearm according to one of the claims 1 or 2, characterized in that the trigger (4), which is pivotable about an axis (27) is articulately connected with a slider (31), which has a curved track (33) in which a control arm (35) is slidingly inserted, which at the free end thereof stands under a spring force acting on drive elements (23) of the drum (18) in the context of providing a rotational force, the slider (31) in the firing position of the firearm (1) engaging adjustingly into adjusting recesses (39) on the circumference of the drum (18) and which are arranged between the drum bores (19).
5. Compressed gas-operated firearm according to one of the preceding claims, characterized in that the drum bore (19) in the firing position of the drum (18) is sealingly contacted by a coaxially arranged hollow-cylindrical valve stem (55), which is movable opposite force of a valve spring (60) in a valve body (52) from an idle position into the firing position, whereby the valve body (52) is connectible with an arrangement (15) for the supply of compressed gas or compressed air.
6. Compressed gas-operated firearm according to claim 5, characterized in that a firing pin (11), which is actuated by the hammer (12) of the firearm (1) acts impulse-like opposite the force of the valve spring (60) on the valve stem (55).
7. Compressed gas-operated firearm according to claims 5 or 6, characterized in that the valve stem (55) in the idle or, respectively, loading position, due to spring force contacts an end seal arrangement (58) of the valve body (52), which closes a chamber (62), which is filled with gas or air.

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