EP2113734B1 - Cocking device for fire-arm - Google Patents

Description

The invention relates to a tensioning device for a lock of a rifle according to the preamble of claim 1.

Such a clamping device is from the DE 42 23 498 A1 known, which forms the starting point for the preamble of claim 1. In this clamping device, the sliding on a closure housing between a rear relaxation position and a front clamping position cocking slide is connected to a designed as a ram tensioning lever for tensioning and relaxing the impact piece associated with a percussion spring. The cocking slide has a rear detent for engagement in a lock housing fixedly arranged counter-latch for holding the clamping lever in the front clamping position. The rear end of the cocking slide is lifted in the front clamping position of the closure housing about the depth of the counter-lock to the outside, so that the locking slide provided on the locking in the clamping position by the forward sliding of the cocking slide engages in the counter-detent and is held by the pressure of the striking spring. By pressure on the rear end of the cocking slide this can be unlocked in a simple and convenient way.

The object of the invention is to provide a clamping device of the type mentioned, which ensures independent of external influences automatic reset of the clamping lever after knocking off the hammer.

This object is achieved by a clamping device having the features of claim 1. Advantageous developments and advantageous embodiments of the invention are the subject of the dependent claims.

In the clamping device according to the invention attacks on the displaceable between a release position and a clamping position clamping slide on a return spring through which the cocking slide is automatically moved back after the knocking of the striking piece in the relaxed position. The return of the cocking slide need not be done manually or does not depend on external influences, such as the recoil force when delivering a Shot, off. Even with weak charges or with Zündversagern the cocking slide is automatically reset, so that a new tightening and the delivery of a second shot can be done faster.

In an expedient embodiment, the return spring is arranged on the cocking slide in its displacement direction. The return spring thus generates a force acting directly on the cocking slide in the direction of its restoring force, by which the cocking slide is automatically reset in a conditional by the delivery of a shot relaxing the striker spring in the relaxed position.

In a particularly advantageous embodiment, the belonging to the catch on the cocking slide counter-locking is arranged at the upper end of a rear inclined inclined surface. On the inclined surface, the slide part of the cocking slide can slide along with its rear end, when the striker is relaxed after the delivery of a shot and the cocking slide is acted upon substantially only by the force of the return spring to the rear. As a result, a simple safe release of the latched holder of the slider and its displacement is achieved in the rear release position.

In a further advantageous manner, the counter-latching is arranged on an insert which is exchangeably fixed in the closure housing. In case of damage or signs of wear, this insert can thus be easily replaced.

The return spring is preferably clamped between a lateral approach of a lower slide part of the cocking slide and a retaining pin inserted into the lock housing and is guided in a further advantageous manner on a running in the direction of the clamping slide rod.

Figur 1:

ein Einschloss-System eines Kipplaufgewehrs mit einer erfindungsgemäßen Spannvorrichtung in einem ungespannten Zustand im Längsschnitt;

Figur 2:

eine Detailansicht des in Figur 1 gezeigten Schlosses in einem gespannten Zustand im Längsschnitt;

Figur 3:

einen Spannschieber mit einem Griffstück und einem Schieberteil in einer zum Teil geschnittenen Seitenansicht;

Figur 4:

das Schieberteil des in Figur 3 gezeigten Spannschiebers in einer Seitenansicht;

Figur 5:

das in Figur 4 gezeigte Schieberteil in einer Draufsicht;

Figur 6:

einen Einsatz in einer geschnittenen Seitenansicht und

Figur 7:

den in Figur 6 gezeigten Einsatz in einer Draufsicht.

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 lock system of a Kipplaufgewehrs with a tensioning device according to the invention in an untensioned state in longitudinal section;

FIG. 2:

a detailed view of the in FIG. 1 shown lock in a tensioned state in longitudinal section;

FIG. 3:

a cocking slide with a handle and a slide part in a partially sectioned side view;

FIG. 4:

the slider part of in FIG. 3 shown cocking slide in a side view;

FIG. 5:

this in FIG. 4 shown slide part in a plan view;

FIG. 6:

an insert in a sectional side view and

FIG. 7:

the in FIG. 6 shown insert in a plan view.

This in FIG. 1 illustrated lock system of a double-barreled rifle includes a within a closure housing 1 on a lower housing part (lock plate) 1a slidably guided hammer 2 for actuating two firing pins 3a and 3b. In the hammer 2 a striker spring 4 and a corresponding clamping bolt 5 are housed. For tensioning the striker spring 4 of the clamping bolt 5 by a cocking slide 6 via a clamping lever 7 from an in FIG. 1 rear position in an in FIG. 2 shown front clamping position sliding. For this purpose, the cocking slide 6 connected to the tensioning lever 6 between an in FIG. 1 illustrated rear relaxation position and one in FIG. 2 displaced shown front clamping position.

How out FIG. 1 shows, the hammer 2 two each rotatable between a holding position and a release position latching lever 8 and one cooperating with this trigger bar 9 are assigned. The two juxtaposed locking lever 8 are hinged to a first transverse pin 10 rotatably mounted on the Baskülenteil 1 and have upper locking lugs 11 for holding the hammer 2 in the rear holding position. By springs, not shown, the two locking lever 8 are acted upon so that their locking lugs 11 are pushed upwards. The two trigger rods 9 are arranged in the manner of a two-armed lever about a second transverse pin 12 pivotally mounted on the Baskülenteil 1 and have at the bottom of her by a respective compression spring 13 down acted upon the rear lever arm, a groove 14 for receiving a arranged at the lower end of the associated latching lever 8 pin 15. The compression springs 13 are clamped between the Baskülenteil 1 and the front lever arms of the trigger rods 9. The grooves 14 and the pins 15 are matched to one another such that the pins 14 when lifting the rear lever arms of the trigger rods 9 out of engagement with the grooves 14 of the trigger rods 9, so that the locking lever 8 are released.

The actuation of the two trigger rods 9 to release the locking lever 8 via intermediate lever 16, which are mounted parallel to each other on a base body 17 about a common transverse axis 18 pivotally. The intermediate levers 16 are designed as two-armed pivot lever and have at their front end in the weft direction in each case a forwardly projecting nose 19 for engagement with a catch 20 at the rear end of the associated trigger bar 9. The intermediate levers 16 further include downwardly projecting projections 21, one of which engages a rear extractor 22 and the other engages a front extractor 23. At their rear ends, the intermediate lever 16 on a rearwardly projecting lug 24, which can be attacked by one in the base body 17 slidably guided locking slide 25. The biased by a spring locking slide 25 are slidably guided on the base body 17 between a rear release position and a front locking position and are part of a security system, which in the German patent application DE 10 2008 003 722 is explained in more detail. The base body 17 is slidably guided on the lower Baskülenteil 1 in the longitudinal direction, so that the respective trigger rods 9 associated intermediate lever 16 between a in FIG. 1 shown rear starting position and a front release position are displaced. In the rear starting position, the front lugs 19 of the two intermediate levers 16 are spaced from the detents 20 of the trigger bars 9. Also, the downwardly projecting projections 21 of the intermediate lever 16 are spaced from the prints 22 and 23, so that in this position no connection between the prints 22 and 23 consists. By pressing the cocking slide 6, the base body 17 is pressed together with the intermediate levers 16 forward, so that they engage with their front lugs 19, the detents 20 of the trigger rods 9. At the same time reach the intermediate lever 16 with its lower projections 21 into engagement with the prints 22 and 23, so that by pulling the prints 22 or 23, a first shot can be triggered. Depending on the choice of the trigger 22 or 23 is on the associated intermediate lever 16, the rear end of the corresponding trigger bar 9 is raised, whereby the right or left locking lever 8 is released with the latch for rotation. The other locking lever 8, however, remains locked so that the hammer can escape to the right or left and can operate the firing pin 3a or 3b. The front end of the hammer 2 is shaped to actuate the firing pin 3a when dodging to the right and the firing pin 3b when dodging to the left.

The structure and operation of the lock system with the common hammer 2 for actuating the two firing pins 3a and 3b is in the German patent application DE 10 2008 003 722 explained.

In FIG. 2 the tensioning device for tightening the lock-in system described above is shown in more detail. The tensioning device comprises the cocking slide 6, which contains a grip piece 28 which is displaceably guided in a longitudinal guide 26 on the upper side of a closure housing 1 and a lower slide part 29 fixedly connected thereto. How out FIG. 3 it can be seen, 28 two replaceable sliding plates 30 are attached to the underside of the handle.

That in the FIGS. 4 and 5 in a side view and plan view shown slide member 29 is connected via an upwardly projecting, in cross-section oval pin 31 fixed to the handle 28. For connection to the handle 26, the pin 31 has on its upper side a threaded transverse bore 32. The slide member 29 includes at the rear end a longitudinal slot 33 and inclined end surfaces 34 with a locking edge formed as a detent 35. At the rear end of the slide member 29 is also a transverse bore 36 for a in FIG. 2 shown transverse pin 37. On the side of the slide member 29, a laterally projecting projection 38 is provided with a longitudinal bore 39 in the region of the transverse bore 36.

In the longitudinal bore 39 of the slide member 27 laterally projecting lug 38 is the rear end of an in FIG. 1 arranged rod 40 slidably disposed. The front end of the rod 40 is in a laterally inserted into the closure housing 1 retaining bolt 41st fixed. On the rod 40 sits a compression spring 42 through which the slide member 29 is acted upon to the rear. How out FIG. 2 shows, arranged in the rear region of the slide member 29 transverse pin 37 engages in a groove 43 of the longitudinal slot 33 of the slide member 29 projecting upper part of the clamping lever 7 a. About a cross pin 44 which is pivotable about a transverse pin 45 clamping lever 7 is connected to the arranged in the hammer 2 clamping bolt 5 for tensioning the striker spring 4.

The pin 31 of the slide member 29 is in a slot 46 of the in the FIGS. 6 and 7 separately shown insert 47 slidably guided. The insert 45 is mounted in the closure housing 1 and includes on its underside opposite to the oblique end surfaces 34 of the slide member 29 obliquely inclined rearwardly inclined surface 48 with a detent 35 of the slide member 29 associated counter-detent 49. The counter-detent 49 is at the upper end the inclined surface 48 is arranged. How out FIG. 2 it can be seen, an acute angle α is formed between the rear oblique end surfaces 34 of the slide member 27 and the front inclined surface 48 of the insert 47.

• Durch Vorschieben des Griffstücks 28 mit Hilfe des Daumens kann das Schieberteil 27 nach vorne gedrückt werden, wobei die Schlagfeder 4 durch den Spannbolzen 5 über den Spannhebel 7 gespannt wird. Wenn das Schieberteil 29 in seine in Figur 2 gezeigte vordere Spannstellung gelangt, kann die Rast 35 am Schieberteil 29 in die zugehörige Gegenrast 49 am Einsatz 47 einrasten, wobei das Schieberteil 29 zusammen mit dem Griffstück 28 leicht nach vorne kippt. Durch die Schlagfeder 4, die am Schieberteil 29 über den Spannhebel 7 eine nach oben gerichtete Kraftkomponente erzeugt, wird die Rast 35am Schieberteil 29 innerhalb der Gegenrast 49 des Einsatzes 47 gehalten.

The chuck described above works as follows:

• By advancing the handle 28 by means of the thumb, the slide member 27 can be pushed forward, the striker spring 4 is tensioned by the clamping bolt 5 via the clamping lever 7. When the slider part 29 is in its in FIG. 2 shown front clamping position, the catch 35 can engage the slide member 29 in the corresponding counter-detent 49 on the insert 47, the slide member 29 together with the handle 28 tilts slightly forward. By the striking spring 4, which generates an upward force component on the slide member 29 via the clamping lever 7, the catch 35 is held on the slide member 29 within the counter-detent 49 of the insert 47.

If released by pressing one of the two prints 22 or 23, the hammer 2 for actuating the firing pin 3a or 3b and thereby a first shot is delivered, the striking spring 4 is almost completely relaxed and exercises on the clamping lever 7 only a small, upward Force on the slide member 29 from. By acting in the direction of displacement of the slide member 29 to the rear force of the return spring 42, the slide member 29 is then along the inclined surface 48 of the mating latch 49 out and then moved backwards to the relaxation position. During the backward movement of the slide member 29, the hammer 2 is also displaced back into its rear, locked by the locking lugs 11 of the locking lever 8 starting position on the tensioning lever 7. By subsequently advancing the handle 28, the slide member 29 can then be pressed forward for re-tensioning the striker spring 4. The slide member 29 can then snap back into the insert 37 and the lock is ready to deliver a second shot.

These tensioning device can be relaxed in the tensioned state in a simple manner. For this it is only necessary to press on the rear end of the handle 28. As a result, the detent 35 is pushed out of the counter-detent 49 down and the slide member 29, together with the clamping lever 7 under the action of the striker spring 4 again in accordance with FIG. 1 pressed release position pressed. In this position, the striker spring 4 is relaxed.

Claims (10)

1. Cocking device for a lock of a gun with a cocking slide (6) which is arranged displaceable between a cocking position and an uncocking position on a lock housing (1) and is connected to a cocking lever (7) for cocking or uncocking the striker spring (4) associated with a striker (2), wherein the cocking slide (6) comprises a rear detent (35) for engagement in a counter-detent (49) fixed on the lock housing (1) to hold the cocking slide (6) in the cocking position and the striker spring (4) acts through the cocking lever (7) to produce an upwardly directed force component to hold the detent (35) inside the counter-detent (49), characterised in that acting on the cocking slide (6) there is a return spring (42) through which the cocking slide (6) is automatically moved back to the uncocking position when the striker (2) has been released and the striker spring (4) only exerts a tiny upwardly directed force on the cocking slide (6).
2. Cocking device according to claim 1, characterised in that the return spring (42) is arranged on the cocking slide (6) in the direction of displacement thereof.
3. Cocking device according to claim 1 or 2, characterised in that the counter-detent (49) is arranged at the upper end of an oblique face (48) which is inclined towards the rear.
4. Cocking device according to one of claims 1 to 3, characterised in that the counter-detent (49) is arranged on an insert (47) fastened interchangeably in the lock housing (1).
5. Cocking device according to one of claims 1 to 4, characterised in that the cocking slide (6) comprises a grip piece (28) protruding from the lock housing (1) and a slide part (29) arranged inside the lock housing (1).
6. Cocking device according to claim 5, characterised in that the return spring (42) is clamped between a lateral projection (38) of the slide part (29) and a retaining pin (41) inserted in the lock housing (1).
7. Cocking device according to claim 6, characterised in that the return spring (42) is guided on a rod (40) running in the direction of displacement of the cocking slide (6).
8. Cocking device according to claim 7, characterised in that the rod (40) is held with its front end in the retaining pin (41) and guided displaceably with its rear end in a longitudinal bore (39) in the projection (38).
9. Cocking device according to one of claims 5 to 8, characterised in that the slide part (29) exhibits an oblique end face (34) which is angled in the opposite direction to the oblique face (48).
10. Cocking device according to claim 9, characterised in that an acute angle α is formed between the oblique face (48) and the end face (34).

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