Abstract:
The invention concerns an insertion magazine ( 2 ) for a small arm, in particular, a repeating rifle. The insertion magazine ( 2 ) is characterized in that a trigger unit ( 3 ) with a trigger guard ( 7 ) and a trigger ( 9 ) is mounted on its underside in such a manner that the trigger unit ( 3 ) is removable together with the insertion magazine ( 2 ) from the small arm.

Description:
CROSS-REFERENCE TO RELATED APPLICATION 
       [0001]    This application claims priority under 35 U.S.C. §119 to German Patent Application No. 10 2006 009 895.1 filed Mar. 3, 2006, the entire contents of which are incorporated herein by reference. 
       FIELD OF THE INVENTION 
       [0002]    The invention concerns an insertion magazine of a small arm, especially a repeating rifle, and a small arm with such an insertion magazine. 
       BACKGROUND OF THE INVENTION 
       [0003]    In repeating rifles with a cylinder breech mechanism, the cartridge magazine is, as a rule, located under the breech mechanism. Particularly with repeating rifles with the long type of construction, the magazine is often placed, as an insertion magazine, in a magazine shaft, open downwards, in front of the trigger guard, so that the magazine can also be readily removed downwards. The magazine, however, can be accommodated in a magazine shaft, accessible from the top, above the trigger guard, especially with a shorter type of construction, in which case the magazine is pressed from above into the magazine shaft when the breech mechanism is open. In order to completely unload the weapon with such a magazine arrangement, the cartridges must, however, either be removed from the magazine with one&#39;s finger, after opening the breech mechanism, or they must be ejected one by one by opening and closing the breech mechanism. However, this requires a relatively high effort for complete unloading of the weapon, which is a requirement for transporting the weapon inside a vehicle, when getting on or leaving a raised blind, or before entering a building. 
         [0004]    From DE 20 2004 016 800 U1, a lock box for a repeating rifle with a magazine shaft for a removable magazine is known. In this known lock box, the underside of the magazine shaft is covered with a plate, which has a pivotable lid that can be locked, which carries a trigger lever and separates the trigger lever from the trigger mechanism in the opened position for the removal or the insertion of the magazine, and in the closed position, couples the trigger lever with the trigger mechanism. 
         [0005]    The problem of the invention is to create an insertion magazine for a small arm and a small arm with such an insertion magazine that allows a rapid unloading and loading of the small arm, even if the magazine is located above the trigger guard. 
       SUMMARY OF THE INVENTION 
       [0006]    This problem is solved by an insertion magazine as set forth in the claims and by a small arm as also set forth in the claims. 
         [0007]    Appropriate refinements and advantageous embodiments of the invention are the object of the dependent claims. 
         [0008]    In the insertion magazine in accordance with the invention, a trigger unit with a trigger guard and trigger are affixed on its underside in such a way that the trigger unit can be removed, together with the insertion magazine, from the small arm. A small arm can thus be rapidly unloaded and loaded with the full magazine capacity, even if the magazine is above the trigger unit. The magazine and the trigger unit form a totality which can be simply removed, can be transported and kept separate from the small arm, but if needed can also be rapidly mounted again. Thus, the small arm can not only be unloaded rapidly and simply, but, for example, after climbing up a raised blind, can also be rapidly reloaded with the entire magazine capacity and a complete tiring readiness. In this respect, the insertion magazine, with the trigger unit affixed thereon, need only be inserted, from below, into a corresponding holder of a breech mechanism housing. 
         [0009]    In a particularly advantageous embodiment, the insertion magazine has a blocking mechanism coupled with the trigger, for the releasable locking of the insertion magazine in an inserted position on the small arm. The coupling of the blocking mechanism with the trigger makes it possible for the magazine to be locked above the trigger itself even if the blocking element, which is brought into a locking position by a compression spring, jams because of icing, soiling, or the like. 
         [0010]    In an advantageous embodiment, the blocking mechanism comprises a blocking element, which is brought to a locking position by means of a compression spring, and a blocking component for connecting the blocking element to the trigger. In a preferred embodiment, the blocking element is constructed as a blocking pin that is brought into a locking position by a compression spring and can be pushed into a retracted release position by an actuation element. Via the blocking component, the blocking element is not only brought into a locking position by the actuation of the trigger, but rather, the trigger is also pressed into a front starting position when the push button is actuated. In this way, the trigger can contact a trigger rod in the breech mechanism housing only after the complete locking of the insertion magazine. Thus, a trigger which is stationary in the pressed position cannot lead to the undesired release of a shot. 
         [0011]    The actuation element for the displacement of the blocking element into a release position can be located directly on the trigger guard or also on a breech mechanism housing of the small arm. 
         [0012]    In another embodiment, the blocking mechanism can contain two blocking elements, which can be displaced transversely and which are prestressed laterally against the locking crosslinks by a trigger slide bar, impinged on by a spring and coupled with the trigger. Furthermore, the trigger contains a blocking slide bar, which acts together with the two blocking elements and which is guided in such a way that it can be displaced on the bottom of a magazine and, in a prespecified locking position, prevents a pressing-together of the two locking crosslinks and thus an undesired removal of the insertion magazine. 
         [0013]    In an advantageous embodiment, the insertion magazine consists of a magazine shaft and a replaceable magazine insert. In this way, the insertion magazine can be simply adapted to different calibers. However, the insertion magazine can also be constructed as one piece. 
         [0014]    A small arm in accordance with the invention, a repeating rifle in particular, is characterized in that it contains an insertion magazine with a trigger unit affixed to its underside. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0015]    Other distinctive features and advantages of the invention can be deduced from the following description of a preferred embodiment, with the aid of the drawing. The figures show the following: 
           [0016]      FIG. 1 , a breech mechanism housing of a repeating rifle and a corresponding insertion magazine with an integrated trigger unit; 
           [0017]      FIG. 2 , a first embodiment of an insertion magazine with an integrated trigger unit in an exploded view; 
           [0018]      FIG. 3 , an insertion magazine with integrated trigger unit in a side view; 
           [0019]      FIG. 4 , the insertion magazine of  FIG. 3  in a top view; 
           [0020]      FIG. 5 , a side view of the insertion magazine with an integrated trigger unit, along the A-A line of  FIG. 4 ; 
           [0021]      FIG. 6 , a second embodiment of an insertion magazine with an integrated trigger unit and a breech mechanism housing in an exploded view; 
           [0022]      FIG. 7 , a sectional view of the breech mechanism housing and insertion magazine of  FIG. 6 ; 
           [0023]      FIG. 8 , a third embodiment of an insertion magazine with an integrated trigger unit in an exploded view; and 
           [0024]      FIG. 9 , a sectional view of the breech mechanism housing and insertion magazine of  FIG. 8 . 
       
    
    
     DETAILED DESCRIPTION OF THE INVENTION 
       [0025]      FIG. 1  shows a breech mechanism housing  1  or a system box of a small arm and an insertion magazine  2  with a trigger unit  3  affixed to its underside. The breech mechanism housing  1  contains a holder  4 , which is accessible from the underside, into which the insertion magazine  2  is introduced. In a conventional manner, a barrel, a front shaft, and a rear shaft, not shown, are affixed to the breech mechanism housing  1 . 
         [0026]    As can be deduced from  FIG. 2  in particular, the insertion magazine  2  comprises a magazine shaft  5  and a magazine insert  6 , which is adapted to a desired caliber and when needed, can be simply replaced. A trigger guard  7  of the trigger unit  3  is affixed to the underside of the magazine shaft  5 . In this respect, the trigger guard  7  has several threaded boreholes  8  for corresponding screws on its upper side, by means of which the trigger guard  7  is firmly connected with the magazine shaft  5 , from the inside of the shaft. 
         [0027]    In addition to the trigger guard  7 , the trigger unit  3  comprises a trigger  9  situated on the trigger guard  7  in a pivotable manner via boreholes  10  and  11  and a transverse pin, not shown. 
         [0028]    On its front side, the trigger guard  7  contains a recess  12 , in which an actuation element  14 , which is moved forwards by a compression spring  13 , is movably guided. The actuation element  14 , constructed as a push button or slide bar, has a cam  15 , protruding upwards on its front end in the direction of shooting, so as to engage in a lower groove  16  on the rear end of a pin-like blocking element  17 . On the rear end of the actuation element  14 , an upper groove  18  is provided for the meshing of a carrier  19 , protruding downwards, on the front end of a blocking component  20 , conducted, in a displaceable manner, in the trigger guard  7 . At its rear end, the blocking component  20  contains a bevel  21 , which acts together with the trigger  9 . 
         [0029]    The trigger  9  has, on the front end in the direction of shooting of its trigger blade  22 , a step  23  for engaging with the bevel  21  of the blocking component  20 . On the upper side of the trigger blade  22 , a blind hole  24  for retaining a trigger spring  25  is located between the borehole  11  and the step  23 . At the rear end of the trigger blade  22 , an upward-protruding cam  26  is provided for engaging with a not-shown trigger rod. 
         [0030]    From  FIG. 5 , one can see that the pin-like blocking element  17  is located in a corresponding guide hole  27  of a bottom plate  28  of the magazine shaft  5 , in such a manner that it can be displaced axially. At its front end, the pin-like blocking element  17  has an incline  29  and, for locking, engages with its front end in an opening  30  depicted in  FIG. 1  on the breech mechanism housing  1 . The rear, rounded-off end  31  of the trigger guard  7  protrudes toward the rear relative to the magazine shaft  5 , and engages in a recess  32 , shown in  FIG. 1 , on the underside of the breech mechanism housing  1 . Via the compression spring  13 , which is clamped between the trigger guard  7  and the actuation element  14  according to  FIG. 5 , the actuation element  14  and the blocking element  17  engaged with it are pressed into a front position that corresponds to the locked position. By displacement of the actuation element  14 , the pin-like blocking element  17  is retracted and arrives at the breech mechanism housing  1 , without engaging with the opening  30 , so that the insertion magazine  2  can be removed, together with the trigger unit  3 . 
         [0031]    Upon inserting the insertion magazine  2  into the breech mechanism housing  1 , the blocking element  17 , which is moved forward by the compression spring  13 , is first pressed by the bevel  29  and in the correct incorporation position of the insertion magazine  2 , engages with its front end in the opening  30  of the breech mechanism housing  1 . If the force of the compression spring should not be sufficient because of soiling or icing, for example, then the locking element  17  is displaced forwards when the trigger  9  is actuated by the blocking component  20 . This displacement is attained by the bevel  21  which is placed, in the retracted position of the blocking component  20 , on the lower step  23  of the trigger blade  22 . If the step  23  at the front end of the trigger blade  22  is lowered when the trigger  9  is actuated, the blocking component  20 , situated in a retracted position, and with it, the actuation element  14  and the pin-like blocking element  17  are pushed forwards via the bevel  21 . This ensures that the insertion magazine  2  is locked before the small arm is actuated. 
         [0032]    Another function of the blocking component  20  is the turning of the trigger  9  into its front starting position when the actuation element  14  is actuated. In this way, it is possible for the trigger  9  to be placed with its rear cam  26  on the not-shown trigger rod when the insertion magazine  2  is inserted, only if the insertion magazine  2  is completely locked. Thus, a trigger  9  which is stationary in the pressed position cannot lead to the undesired release of a shot. 
         [0033]      FIGS. 6 and 7  show another embodiment of an insertion magazine  2 . The basic structure corresponds to the embodiment described in the preceding, so that, parts corresponding to one another are also provided with the same reference symbols. The insertion magazine  2  depicted here also contains a magazine shaft  5 , on whose underside a trigger guard  7  is affixed. On its upper side, the trigger guard  7  also has several threaded boreholes  8  for corresponding screws, by means of which the trigger guard  7  is firmly connected to the magazine shaft  5 , by the inside of the shaft. In the trigger guard  7 , a trigger  9  is situated so that it can rotate, via boreholes  10  and  11  and a nondepicted transverse pin. 
         [0034]    Here too, a blocking component  20  is situated in the trigger guard  7  in such a way that it can be displaced. On its rear end, the blocking component  20  also contains a bevel  21 , which engages with a step  23  on the front end of a trigger blade  22  of the trigger  9 . On the upper side of the trigger blade  22 , a blind hole  24  for a trigger spring  25  is also provided. In contrast to the first embodiment, however, the blocking component  20  comprises a peg  33 , protruding upwards, which engages in the lower groove  16  on the rear end of the pin-like blocking element  17 , which is also conducted here in the bottom plate  28  of the magazine shaft  5 , in such a way that it can be displaced. This blocking element  17  also contains a bevel  29  on its front end, and engages, in accordance with  FIG. 7 , in a corresponding borehole  30  of the breech mechanism housing  1 . In contrast to the first embodiment, the compression spring  13  does not engage with an actuation element, but rather directly on the blocking component  20 , in order to move the blocking element  17  into a locking position. 
         [0035]    In the embodiment shown in  FIGS. 5 and 6 , the displacement of the pin-like blocking element  17  into its retracted release position takes place by means of an actuation element  34 , designed as an angular slide bar, which, in contrast to the first embodiment, is not located in the trigger guard  7 , but rather is situated so that, via an insert  35 , it can be displaced in a recess  36  on the underside of the breech mechanism housing  1  and is connected with the blocking element  17 , via a bolt  37 . For the movable guidance, the actuation element  34  has stops  38  protruding outwards on its opposite side surfaces, which stops mesh into corresponding guide grooves  39  on the upper side of the insert  35 . The bolt  37  is inserted into a borehole  40  on the rear front side of the slide bar  34  and protrudes toward the rear through an opening  41  of the insert  35 . 
         [0036]    If the actuation element  34  is pushed to the rear, the blocking element  17  is also pushed back via the bolt  37  and thus releases the insertion magazine  2  for removal, with the entire trigger unit. 
         [0037]    Another embodiment of an insertion magazine  2  with an integrated trigger unit  3  is shown in  FIGS. 8 and 9 . In this embodiment also, the trigger unit  3  comprises a trigger guard  7  and a trigger  9 , which is rotatably situated on the trigger guard  7 , via boreholes  10  in the trigger guard  7  and boreholes  11  in the trigger  9 , and a transverse pin, not shown. Likewise, the trigger  9  has, on the upper side of its trigger blade  22 , a blind hole  24 , which lies in front of the borehole  11 , to hold a trigger spring  25 . The insertion magazine  2  also comprises a magazine shaft  5  and a magazine bottom  42 , which is constructed here as a separate component and which is inserted together with the magazine shall  5 , and is joined firmly to it, by cementing for example. A cartridge buffer  43  is affixed in the interior of the magazine shaft  5 , on its front transverse side, viewed in the shooting direction. 
         [0038]    The magazine shaft  5 , preferably produced from plastic, contains, on its opposite longitudinal sides, laterally-elastic locking crosslinks  44 , which protrude downwards, by means of which the insertion magazine  2  is releasably held within a holder  4  of the system box or breech mechanism housing  1 , shown in  FIG. 9 . In this respect, the locking crosslinks  44  comprise wedge-shaped projections  45  on their outside, which engage in corresponding recesses of the breech mechanism housing  1  in the inserted position of the insertion magazine  2 , shown in  FIG. 9 . As one can see from  FIG. 8 , outside gripping elements  46  and inside supporting shoulders  47  are formed on the lower ends of the locking crosslinks  44 , protruding downwards. By pressing the two opposite locking crosslinks  44  on the gripping elements  46  protruding downwards, it is possible to release the lock of the insertion magazine  2  for removal from the corresponding holder  4  of the breech mechanism housing  1 . 
         [0039]    In the embodiment shown in  FIGS. 8 and 9 , the insertion magazine  2  also has a blocking mechanism for the releasable locking of the insertion magazine  2  in an inserted position. Here, the blocking mechanism comprises two blocking elements  48 , movably situated transverse to the magazine shaft  5  in the magazine bottom  42 , which are biased laterally toward the outside against the locking crosslinks  44  by a trigger slide bar  50 , which is pushed forwards via springs  49  and coupled with the trigger  9 . On its backside, the trigger slide bar  50  has a bevel  51 , which acts together with a corresponding counter-bevel  52  on the front end of the trigger  9 . The laterally displaceable blocking elements  48  comprise side crosslinks  54 , which protrude through recesses  53  in the magazine bottom  42 , which are guided on the supporting shoulders  47  on the locking crosslinks  44  of the magazine shaft  5 . On the inside, the blocking elements  48  comprise opposite front and rear control bevels  55 , which act together with a wedge  56  on the front end of the trigger slide bar  50  in such a way that the two blocking elements  48  are pressed by the forward movement of the trigger slide bar  50  toward the outside, against the locking crosslinks  44 . 
         [0040]    Furthermore, an additional blocking slide bar  57 , which acts together with the two blocking elements  48 , is guided in the magazine bottom  42  movably in the longitudinal direction. The blocking slide bar  57  comprises an operating part  59 , protruding through an opening  58  of the magazine bottom  42 , and can be displaced between the two blocking elements  48  by being pushed back in such a way that they are held pushed outwards in a locking position. In this locking position, pressing together of the two locking crosslinks  44  and thus an undesired removal of the insertion magazine  2  is prevented. Seen in  FIG. 9  are two engaging depressions  60 , by means of which the blocking slide bar  57 , located in the trigger guard  7  and is acted on by a spring, is maintained in its locking position and front release position with the aid of a stop bolt  61 , are provided on the underside of the blocking slide bar  57 . 
         [0041]    As with the two first embodiments, the connection between the trigger  9  and the locking elements  48 , produced by means of the trigger slide bar  50  in the embodiment shown in  FIGS. 8 and 9  also, ensures that the insertion magazine  2  is locked before the actuation of the small arm. With the actuation of the trigger  9 , the trigger slide bar  50  is pushed forwards, via the bevel  51  and the corresponding counter-bevel  52 , to press apart the two blocking elements  48  even if the force of the two springs  49  is not sufficient because of soiling or icing.