EP2040022A2 - Breakdown shotgun with breech lock - Google Patents

Abstract

A break-joint gun (sic) with a locking box (1), a tipping operating unit (3), a locking wedge (18) which can slide in the locking box, for locking the operating unit in the closed position, and a locking box (4), which can be displaced (sic) in the lower release position by means of the locking wedge (18).

Description

The invention relates to a Kipplaufgewehr with block closure according to the preamble of claim 1.

Such a Kipplaufgewehr is from the AT 288205 known. It also includes a closure box with a tiltably arranged on this running unit and a closure block which is slidably mounted in the closure box perpendicular to the chamber between a lower unlocking position and an upper locking position. The displacement of the closure block between the lower unlocking position and the upper locking position is effected here by a lower lever designed, pivotally arranged below the trigger guard actuating lever, which is connected via a linkage articulated to the closure block. In the closure box, a pivotable about a transverse axis angle lever is further arranged, which engages with the one end in a neck of the linkage and with the other end in a locking slide. About the linkage and the additional angle lever of the actuating lever with the closure block and the locking slide is coupled so that when pivoting down the actuating lever next to the closure block on the approach in the linkage and the angle lever is moved to pull the locking slide from a running hook. In order to ensure a safer functioning, however, the additional coupling links required to connect the locking lever with the locking block and the locking slide must be manufactured extremely precisely and matched exactly to one another, which usually requires elaborate reworking by hand.

From the DE 44 46 906 C1 Another kipplaufwaffe is known with a block closure. In this dump gun, a closure block is pivotally mounted about an axis of rotation mounted in a base. The closure block is pivoted spring-loaded when opening or closing the weapon and locked in the respective locking and unlocking via a locking wedge.

The DE 199 09 580 B4 discloses a Kipplaufwaffe with a closure block, which is slidably guided over scenes and associated guide pins on a base and supported on a sliding surface of the Basküle. When tilting the barrel, the closure block initially tilts forward and is then displaced by a spring on the sliding surface, wherein the forward movement of the closure block is limited by a stop. The tilting and sliding closure block is penetrated by a locking wedge, which engages in the locking position with a locking hook.

The object of the invention is to provide a Kipplaufgewehr of the aforementioned type, which allows a compact design and with as few components allows a simplified operation of the closure block for opening and closing the Kipplaufgewehrs.

This object is achieved by a Kipplaufgewehr with the features of claim 1.

Advantageous developments and advantageous embodiments of the invention are the subject of the dependent claims.

In the tilting rifle according to the invention, the locking wedge coupled with the locking lever assumes a double function. He does not only by the engagement with the running part the locking of the running part relative to the closure box with Kipplaufgewehr ago, but also serves directly for displacement of the closure block in the lower unlocking position when the closure wedge for opening the Kipplaufgewehrs by pressing the locking lever in a retracted open position is moved. For this purpose, no consuming to produce and expensive additional components or coupling elements are required. In addition, the closure block can be locked in an upper locking position via the closure wedge when the tilting rifle is closed. In the Verrieglungsstellung the lock block is located with locking surfaces on corresponding support surfaces of the running unit and covers the chamber from the rear. By the locking block thus resulting in the firing forces are kept away from the closure box to protect the tilting bearings and the lock. About the operable by means of the locking lever shutter wedge, the closure block can be moved by hand both in the lower Entrieglungsstellung as well as in a locked upper locking position, creating additional reliability is reached. In addition, the actuation of the locking block on the closing wedge is particularly space-saving, so that a compact design of the Kipplaufwaffe is made possible.

In order to displace the closure block into the lower unlocking position, the closure wedge expediently has an inclined seating surface which engages upon retraction of the closure wedge with an associated oblique control surface of the closure block. Due to the sloping footprint on the closure wedge and the associated inclined control surface on the closure block, a simple and secure wedge adjustment between the closure wedge and the closure block is achieved.

In a structurally advantageous embodiment, the oblique footprint of the closure wedge on its underside and the associated control surface of the closure block are arranged on the upper side of a hook projecting from the closure block to the rear.

In a further expedient embodiment, the closure wedge on its front side on inclined upper contact surfaces for engagement with associated lower inclined surfaces on the closure block. As a result, the closure block can be easily moved into the upper locking position.

Accurate and precise guidance of the closure block on the closure box may e.g. be achieved in that the closure block is guided via lateral guide grooves within a provided with inwardly projecting guide webs guiding the closure box in the manner of a T-guide slidably.

Figur 1

einen Teil eines Kipplaufgewehres mit abgekippter Laufeinheit und geöffnetem Blockverschluss in einer zum Teil geschnittenen Seitenansicht;

Figur 2

einen Verschlussblock in einer Rückansicht, einer Seitenansicht und einer Draufsicht;

Figur 3

einen Teil des Kipplaufgewehrs von Figur 1 mit geschlossener Laufeinheit teil und geöffnetem Blockverschluss in einer zum Teil geschnittenen Seitenansicht;

Figur 4

eine Schnittansicht entlang der Linie A-A von Figur 3;

Figur 5

einen Teil des Kipplaufgewehrs von Figur 1 mit geschlossenem Laufteil und geschlossenem Blockverschluss in einer zum Teil geschnittenen Seitenansicht;

Figur 6

eine Schnittansicht entlang der Linie B-B von Figur 5;

Figur 7

einen Teil des Kipplaufgewehrs von Figur 1 mit einem Sicherungsstift in einer zum Teil geschnittenen Seitenansicht und

Figur 8

eine Schnittansicht entlang der Linie C-C von Figur 7.

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 part of a Kipplaufgewehres with tipped running unit and open block closure in a partially sectioned side view;

FIG. 2

a closure block in a rear view, a side view and a plan view;

FIG. 3

a part of the dump rifle of FIG. 1 with closed running part and open block closure in a partially sectioned side view;

FIG. 4

a sectional view taken along the line AA of FIG. 3 ;

FIG. 5

a part of the dump rifle of FIG. 1 with closed barrel and closed block closure in a partially sectioned side view;

FIG. 6

a sectional view taken along the line BB of FIG. 5 ;

FIG. 7

a part of the dump rifle of FIG. 1 with a locking pin in a partially sectioned side view and

FIG. 8

a sectional view taken along the line CC of FIG. 7 ,

In FIG. 1 is a part of a Kipplaufgewehrs with a system or closure box 1, a tiltable at the front end of the closure box 1 about a hinge 2 arranged running unit 3 and a closure box 1 slidably guided closure block 4 shown. The running unit 3 includes in the embodiment shown two with their rear ends within a hook piece 5 superposed runs arranged 6 and 7 with the respective cartridge bearings 8 and 9. The hook piece 5 has at its back a downwardly open recess 10 for receiving the closure block. 4 on. At the top of the recess 10, an inner locking groove 11 is provided with an upper support surface 12 for the closure block 4 in the hook piece 5. At the bottom of its rear end seen in the weft direction, the hook piece 5 contains two spaced-apart closure hooks 13, which have lower support surfaces 14 for the closure block 4 on the front side. The two locking hooks 13 also contain on the top of their rear nose-shaped protruding ends inclined upper locking surfaces 15 for a slidably disposed in the closure box 1 in the longitudinal direction and through a closure lever 16 via a closure lever shaft 17 operable closure wedge 18. The two closure hooks 13 with the intervening recess 10 for the closure block 4 and the two locking surfaces 15 and the closure wedge 18 are also in the FIGS. 4 and 6 shown.

How special FIG. 2 As can be seen, the closure block 4 shown there in various views includes an upwardly projecting semicircular locking lug 19 with a rear-side upper locking surface 20 which engages the upper support surface 12 of the hook piece 3 when the weapon is locked. At the bottom, the closure block 4 includes a T-shaped locking lug 21 projecting forward as seen in the firing direction and including lower locking surfaces 22 for engaging the lower support surfaces 14 of the latch hook 13 on the hook piece 5 at the rear of its outwardly projecting legs. About two lateral guide grooves 23, the closure block 4 is within a in FIG. 8 recognizable guide 24 of the lock box 1 with inwardly projecting vertical guide webs 25 between a in FIG. 3 shown lower unlocking position and a in FIG. 5 shown upper locking position perpendicular to the longitudinal direction of the closure box 1, that is, at right angles to the axes of the two barrels 6 and 7 with the running unit 3, slidably guided.

The closure block 4 also has at its lower end a rearwardly projecting hook 26 with an oblique upper control surface 27 which, upon opening of the closure, comes into contact with an associated oblique lower footprint 28 on the underside of the closure wedge 18. On its two side surfaces of the closure block 4 below the guide grooves 23 also includes lateral recesses 29 with inclined surfaces 30 and lower locking surfaces 31. At the bottom of the closure block includes a vertical bore 32 in which a in FIG. 1 illustrated spring-loaded bolt 33 is arranged. By the bolt 33, which is supported with its lower end on a fastened to the underside of the lock box 1 lock plate 34, the shutter block 4 is pushed upwards. At the back of the closure block 4 is in the upper region a lateral recess 35 for a in FIG. 7 illustrated locking pin 36 is provided. In the closure block 4 are also holes 37 and 38 for the in FIG. 1 shown firing pin 39 and 40th

Like from the FIGS. 4 and 6 shows, the closure wedge 18 has two front fork-shaped protruding front ends with oblique upper abutment surfaces 41 for engagement with the in FIG. 3 recognizable inclined surfaces 30 of the closure block 4. At the bottom of the two fork-shaped protruding front ends of the closure wedge 18 are located in FIG. 3 recognizable oblique bottom locking surfaces 42, which at the in FIG. 5 shown locking position to rest on the associated oblique upper locking surfaces 15 to the locking hook 13. At the in FIG. 5 illustrated locking position of the shutter wedge 18 abuts with its upper surface 43 on the lower locking surfaces 31 of the closure block 4, whereby it is held in the upper locking position.

For displacement of the closure wedge 18 between a in FIG. 5 shown front closed position and one in FIG. 1 shown rear opening position, a lever 44 is attached to the lower end of the rotatable by the shutter lever 16 lock lever shaft 17. In the FIGS. 4 and 6 It can be seen that the lever 44 includes a laterally projecting lever arm 45 with an upwardly projecting pin 46 for engagement in a transverse groove 47 of the closure wedge 18. By rotation of the shutter lever shaft 17 by means of the locking lever 16 so shutter wedge 18 can be moved from the front closed position to the rear open position.

The shutter lever shaft 17 is rotatably disposed in the shutter box 1 perpendicular to the longitudinal direction thereof, and has two passages for two pins 48 and 49 slidably disposed in the shutter box 1 for actuating the firing pins 39 and 40, respectively. The pins 48 and 49 are according to FIG. 5 arranged such that they are aligned in the upper locking position of the closure block 4 with the firing pin 39 and 40 therein. The pins 48 and 49 are actuated by striker not shown here a trigger mechanism.

By one in the sectional views of FIGS. 7 and 8 recognizable reset lever 50 and a spring-loaded pin 51, a return mechanism for the closure wedge 18 is formed. The reset lever 50 is mounted in the locking lever 17 and has a lever arm 52 projecting laterally therefrom. The acted upon by a return spring 53 pin 51 is disposed in a bore 54 of the closure box 1 such that it presses with its free end on the lever arm 52 and thereby the closure lever shaft 17 from the in FIG. 8 shown back to its closed position. As a result, the shutter wedge 18 is pressed into its front closed position.

In the following, the operation of the above-described tilting rifle with block closure on the basis of FIGS. 1 to 8 explained.

In the FIGS. 5 and 6 is the locked Kipplaufgewehr with folded hook piece 5 and located in the upper locking position closure block 4 is shown. In the upper locking position, the closure block 4 is supported with its upper locking surface 20 on the upper support surface 12 and with its two lower locking surfaces 22 on the lower support surfaces 14 of the hook piece 5. The closure wedge 18 is in the front closed position and lies with the two oblique lower locking surfaces 41 on the upper locking surfaces 15 of the hook piece 5. The corresponding bearing surfaces 55 between the closure wedge 18 and the hook piece 5 are in FIG. 6 hatched shown. At the same time, the locking wedge 18 is in engagement with the lower locking surfaces 31 of the locking block 4 with its upper surface 42 at the forwardly projecting ends. The corresponding bearing surfaces 56 between the locking wedge 18 and the locking block 4 are shown in FIG FIG. 6 also hatched drawn. Thus, not only the hook piece 5 is fixed relative to the closure box 1 in the closed position by the shutter wedge 18 with locked Kipplaufwaffe, but also the lock block 4 is locked in the upper locking position. In the locked position, the closure block 4 forms a solid unit with the hook piece 5 and covers with its front shock bottom surface 57, the two cartridge bearings 8 and 9 from the rear.

To tilt the running unit 3 of the Kipplaufgewehrs the shutter wedge 18 by pivoting the locking lever 16 via the locking lever shaft 17 and connected to this lever 44 from the in the FIGS. 5 and 6 shown front closed position in a retracted open position according to the FIGS. 3 and 4 postponed. Upon retraction of the closure wedge 18, the upper surface 43 of the closure wedge 18 disengages from the lower locking surface 31 of the closure block 4 and releases it for downward displacement. About the case of the rearward movement of the closure wedge 18 for abutment with the upper control surface 27 of the hook 26 reaching lower footprint 28 of the Shutter wedge 18, the closure block 4 is moved against the force of the spring-loaded pin 33 perpendicular to the axes of the two barrels 6 and 7 down until the in FIG. 7 shown locking pin 36 engages in the lateral groove 35 of the closure block 4 and thereby holds the closure block 4 in the lower unlocked position. In the retracted open position, the front end of the locking wedge 18 is spaced from the rear ends of the locking hooks 13, so that the running unit 3 according to FIG. 1 can be tilted forward. By the locking pin 36, the shutter block 4 is held in the lower unlocking position even when the shutter wedge 18 is pushed back by the reset lever 50 and the spring-loaded pin 51 via the shutter lever shaft 17 forward and with its oblique front bearing surfaces 41 in engagement with the rear Sloping surfaces 30 of the closure block 4 passes.

When the running member 3 is closed to close the dumping weapon, the rear end of the hooking piece 5 abuts against the forwardly protruding outer end of the locking pin 33 urged outwardly by a spring, thereby forcing it inward to release the shuttering block 4. The closure block 4 is then pressed by the spring-loaded pin 33 and by the wedge effect of the inclined contact surfaces 41 of the acted upon by the reset lever 50 to the front closure wedge 18 on the inclined surfaces 30 of the closure block 4 upwards. Even if the force of the spring-loaded bolt 33 and the spring-loaded reset lever 50 are e.g. due to a not fully inserted cartridge is not sufficient to move the closure block 4 in the upper locking position, the closure block 4 by a displacement of the closure wedge 18 in the front closed position by means of the locking lever 16 on the inclined front abutment surfaces 41 and the associated inclined surfaces 30th be moved on the closure block 4 by hand in the upper locking position. This provides additional security. In the front closed position of the closing wedge 18 not only the hook piece 13 is locked by the closing wedge 4, but also the closing block 4 is locked in the upper locking position.

Claims (11)

A tipping rifle with a closure box (1), a running unit (3) tiltably arranged on the closure box (1), a closure wedge (18) displaceably arranged in the closure box (1) for locking the running unit (3) in a closed position and one on the closure box (1 ) perpendicular to its longitudinal direction between a lower unlocking position and an upper locking position slidably guided closure block (4) in the upper locking position with locking surfaces (20, 22) for engagement with associated support surfaces (12, 14) of the running unit (3) passes, characterized characterized in that the closure block (4) by the closure wedge (18) is displaceable in the lower unlocking position. A tipping rifle according to claim 1, characterized in that the closure wedge (18) includes an oblique footprint (28) which engages a corresponding inclined control surface (27) of the closure block (4) for displacement of the closure block (4) into the lower unlocking position , Tipping rifle according to claim 2, characterized in that the oblique footprint (28) on the underside of the closure wedge (18) and the associated inclined control surface (27) of the closure block (4) on the top of the closure block (4) rearwardly projecting hook ( 26) are arranged. Tipping rifle according to one of claims 1 to 3, characterized in that the closure wedge (18) oblique bearing surfaces (41) for engagement with associated inclined surfaces (30) on the closure block (4). Tipping rifle according to claim 4, characterized in that the oblique abutment surfaces (41) on the top of two forward fork-shaped projecting ends of the closure wedge (18) and the associated inclined surfaces (30) on two lateral recesses (29) of the closure block (4) are arranged , A tipping rifle according to any one of claims 1 to 5, characterized in that the closure block (4) includes lower locking surfaces (31) for engagement with an upper surface (43) of the closure wedge (18). Tipping rifle according to one of claims 1 to 6, characterized in that the closure wedge (18) lower locking surfaces (42) for engagement with upper locking surfaces (15) on locking hooks (13) of the running part (3). Tipping rifle according to one of claims 1 to 7, characterized in that the closure block (4) via lateral guide grooves (23) within a guided with inwardly projecting guide webs (25) guide (24) of the closure box (1) is displaceably guided. Tipping rifle according to one of claims 1 to 8, characterized in that in the closure box (1) a spring-loaded locking pin (36) is arranged, which upon displacement of the closure block (4) in the lower locking position in a recess (35) of the closure block ( 4) engages the holder in the lower unlocking position. Tipping rifle according to one of claims 1 to 9, characterized in that the closure block (4) is pressed by a spring-loaded pin (33) in the upper locking position. Tipping rifle according to one of claims 1 to 10, characterized in that the closure wedge (18) by a closure lever shaft (17) associated, spring-loaded reset lever (50) is pressed in a front closed position.

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