DE2026755A1 - Block lock for hunting rifles - Google Patents

Description

PATENT ADVOCATE! . MONKS DR.-IN &. H. FINCKE MfV ^ Λι DIPL .-! · 'GH BOHR «il-i .. η

DIPL.-IN3. S. STAEGER 1 J (JNi 1970

Adrian Grami ^ er , Pany (.Jchv / eiz)

■ • / illy Naumann, 'Hordes (.Switzerland)

Block lock for hunting rifles

The subject of the invention is a block lock for hunting rifles, with tensioning mechanism and with slide oil, striker spring and trigger stored in the movable breech block.

It is known that when the shutter is loaded and cocked the loaded weapon poses a danger to the shooter and his surroundings; it is therefore customary to provide a fuse which in its effective position blocks the trigger in its cocked position. In practice, however, it often turns out that such a backup is usually not absolutely effective. It it happens again and again that when the weapon hits hard objects or by hanging it in branches, the safety catches pops up and a shot can be fired. This specialist part is particularly evident in those hunting rifles in which the mainspring is activated when opening or closing the shutter is automatically cocked. It has therefore already been suggested that a special one be added to the trigger guard frame Provide tensioning element, the closure only after

'0-09 8 6-27 0 269

Press this opannelement, but not automatically already tensioned when opening or closing the lock will; this has the disadvantage of a relatively large loss of time if several shots are in direct succession should be submitted. Actuating elements arranged completely outside the breech block make it more expensive also the weapon quite considerably.

! These disadvantages are in the block closure according to the invention (which can be a sliding, drop or pivoting block lock can) avoided; For this purpose, it is characterized in that a clamping mechanism is inserted into the locking block of the closure independently operable actuating element acting on one of the two stops of the mainspring engages, which is allowed by acting on said spring stop, with the lock closed and cocked Striker spring to relax the latter at least almost completely without firing a shot and to tension it again. The actuating element is expediently mounted in the closure block itself and designed as a pivot lever which e.g. analogous to the trigger, can be actuated by a bracket protruding from the bottom of the breech block.

The inventive construction of the block closure makes it is possible to use the To relax the mainspring without opening the breech (and of course without firing a shot) ^ that (e.g. after unintentional release of a possibly existing safety) accidental activation of the trigger not to trigger the shot can lead, because if the actuating element has acted in the sense of relaxation on the spring stop, the at least largely relaxed mainspring does not move the firing pin into its effective position that triggers the shot

009882/0266

BAD ORJiQJNAL

can bring; on the other hand, by returning the Pedernnschlage into its clamping position by means of the actuating element the .jlagfeder tensioned again and thus the jChucf.readyEciiait created. Because the actuator independent of any other release mechanism of the lock jot, (the 2nd λ. when opening or closing the lock automat! och can take effect) remains with such Hunting rifles well-known possibility of rapid, successive Cchus8abgäbe received.

Ir. of the accompanying drawings are exemplary embodiments of the! "rfindingegenötandes shown schematically; it reigpn:

'/ ig. la, Ib, lc, -Id each have a side view of the exposed Items of a pall block lock according to the invention in different working positions, and

iig. 2a, 2b, each a side view of the uncovered "island parts of a second example in two different working positions, and

'ig 3n,;' b; ie a side view of the exposed

incelteile of a third example in two different working positions.

In the example of inch Tig. la, b, c and d are. a drop block lock with perpendicular to the barrel axis a ■ des. "" agdgewer.ies (only partially -.- marked) in the 7-lock end 1 movable 7-lock block £. In the upper part aee 7eri3chluseblock.es Γ there is one with the barrel bore or aera. Cartridge chamber coaxial bore 3 is provided in which a

OO 9 8 62 Α)? β 6

Firing pin 4 with striker 4a,! Iuhrungsstück 4b and Shaft 4c is guided; the pin 4a fits into a narrowed one, arranged between bore 3 and cartridge chamber Planal 3a, so that he only has to hand over his shot Tip protrudes into the chamber. The shaft 4c carries the striker spring 5, which is designed as a helical spring, which are attached at one end to the guiding piece 4b and at the other end the rear wall of the breech block 2 is supported. The guide piece 4b has a V-shaped shape on its underside Notch 4d in which one arm 6a of a three-armed iaetenhebels 6 engages. A second after rearwardly directed arm 6b of this snap lever 6, which is rotatably mounted in the locking block 2, has a transverse pin 7 provided with which the clamping lug 8a of a mounted in front of the lock block 2 in the lock box 1 and down from this protruding clamping bracket 8 cooperates. The third, forward arm 6c of the 5; Astenhebels 6 is at its front end with two superimposed boxes 9a, 9t> with which the trigger nose ICa of a trigger 10 stored in the breech block 2 can interact; one on a pin in the breech block 2 seated trigger spring 11 is supported with one end on a rearwardly protruding arm 10b of the with his Bracket 10c down from the trigger 10 protruding from the lock box 1, while the other end of the spring is below on which the / uerzapfen 7 bearing detent lever arm 6b rests. The top of this arm 6b serves as a nose 12a of a tensioning lever 12 mounted in the closure block 2 Sliding surface, with the bracket 12b of the tensioning lever 12 behind the trigger bracket 10c downwards out of the lock box 1 protrudes. At the back of the breech block 2 attached leaf spring 13 loads the tensioning lever 12.

009852 / 026S

The block lock described works as follows: Assuming the lock is closed and the weapon is loaded and the individual locking elements are in the Pig. la position shown, namely the re-tensioning lever 12 held under the action of the spring 13 in its inoperative position indicated by dashed lines. The nose 10a of the trigger 10 engages in the plastic 9b of the Latch lever arm 6c, while the latch lever arm 6a holds the firing pin 4 and thus the striker spring 5 in the tensioned position. The trigger guard 10c is pulled back to fire a shot. The nose 10a disengages from the catch 9b, so that the detent lever 6 is released} this has the effect of the contact spring 5 projecting the firing pin 4, with the pin 4a protruding through the channel 3a with its tip into the cartridge chamber triggering the shot. The notch lever 6 has accordingly rotated counterclockwise and take the individual locking elements now the position shown in Fig. Ib. After the Reloading and tensioning of the closure by means of the detent lever 6 rotating clockwise with its nose 8a Clamping lever 8, the trigger 10a engaging again in the detent 9b under the action of the trigger spring 11, and so on Once the firing pin 4 is fixed in its cocked position, the slide can be opened without firing a shot and without opening the slide be temporarily relaxed. For this purpose, the tensioning lever 12 is pulled back so far that his nose 12a comes to rest on the sliding surface of the detent lever arm 6b j the tensioning lever 12 is in this position held (solid line in Fig. La) and at the same time the trigger 10 is pulled slightly backwards, so that its The nose 10a emerges from the notch 9b of the latch lever arm 6c} Now the tensioning lever 12 is controlled under controlled conditions Release of the detent lever 6 forward into that shown in Fig. Ic Position moves, with the mainspring 5 so far

009 8 52/026 $

relaxes until the load lever, which is thereby rotated counterclockwise, prevents the firing spring from completely relaxing by engaging the trigger 10a in the detent 9a and thus prevents the firing pin tip from penetrating the cartridge chamber. If the tensioning lever 12 is now released, it returns to its rest position (Pig. Ib) under the action of the spring 13. The trigger spring 11 4e pushes the trigger 10 into this locking position. In addition, since the catch 9a is undercut corresponding to the bevel of the trigger 10c, the trigger 10 remains secured against unintentional disengagement from the load 9a. The striker spring 5 has been relaxed so largely that if the trigger 10 is unintentionally triggered (and thus the detent lever 6 or the firing pin 4) is released, it no longer has enough tension to give the firing pin the necessary impulse to trigger the shot . To re-tension the lock, the tensioning lever 12 is pulled backwards; his rabbit 12a rotates the notch lever 6 clockwise until the trigger 10, which is loaded by the trigger spring 11, engages with its nose 10a in the notch 9b of the notch lever arm 6c, at the same time the firing pin 4 is withdrawn and the mainspring 5 is tensioned (Pig. Ia) ₀ 3when the ITach tensioning lever 12 is released, it returns to its rest position under the action of the spring 13 »

A locking bolt can also be provided which fixes the trigger 10 or the key lever 6 in the clamping position shown in FIG. Figo Id) is for this purpose on the pivot axis of the tensioning lever 12, so also in the locking block 2 _}, a safety lever 14 ge = superimposed, which is provided with a nose 14a, which is flattened to interact with a. Section 7a of ^r; uer peg ens T

098S2 / 02

BATH

des ..ai'teiihecel '^ rras 6b is intended. In the tension position of the

aöteiihebels 6 has the flattening of the pin section 7a such a position that the safety lever 14 with his corresponding flattening having tabs 14a over

"The apple section can be swiveled; as Pig. ld. ■ • ■ ^ ljit, the .key lever 6 is thereby prevented from swiveling in the G-ejenuhrzeigerFinr., so that the ■ .chla t'eder un-nüjl.i ' By swiveling back the iSi- ■ esna-unjshebels IA , the “button lever 6” can be released and the lock is unlocked. It should be noted that the safety lever 14 should be in its secure position when the lock is cocked , is automatically pivoted lurch the clamping nose 8a of the Cpannhebels 8 upon actuation (opening for 3ntladen of the closure) to its inoperative position so that when the 'normal charging of the shutter this fuse forcedly ^1: -'fi;: is ineffective; on the other hand is When tightening the lock by means of the tensioning lever 12, the handle 1 / b of the lever 14 in the actuation path of the bracket 12b of the tensioning lever 12, so that the unlocking can practically also take place almost inevitably.

In the example described above, the tensioning lever, load lever and firing pin form three parts stored separately in the breech block 2; this has the advantage that the elements causing the re-tensioning can be dimensioned and stored in such a way that they act as a transmission, so that the force required to tension the relatively strong mainspring remains relatively small The clamping lever 12 can take place during tensioning by pulling back the clamping lever, that is, in the sense of the trigger actuation that the shooter is used to when pricking and parting off.

009852/0265

■ - 7 - BATHROOM

If you want to forego the latter advantages, so the closure according to the invention can also be a simpler one Structure received, for example in Pig. 2a and 2b is shown. This closure also has an in a lock box 41 mounted case block 4-2. That too The clamping lever 48 provided here and mounted in the lock box with the clamping lug 48a protruding into the lock block 42 acts directly on a two-armed bolt mounted in the breech block Lever 52. The upwardly projecting lever arm 52a carries a firing pin 44; the hub part sitting on the axle 55 " 46 of the lever 52 is designed as a detent element with a securing detent 49a and a clamping detent 49b, while the lever arm 52b protruding downward from the block 42 serves as an actuating handle. The lever parts 52a, 46 and 52b together also form the tensioning lever. The seated on the axis 55 and at one end on the locking block 42 and The striker spring supporting the lever arm 52 at the other end is denoted by 45, while the trigger is denoted by 50 and its trigger nose are denoted by 50a.

After the shot has been fired (FIG. 2a), the slide is opened by actuating the tensioning lever 48 and tensioned at the same time (Pig. 2b). When the lock is cocked (which is closed again by returning the clamping lever 48 to the rest position is) the trigger nose 50a engages in the clamping notch 49b and thus fixes the firing pin 44 in its clamping position. For the temporary Release the bolt (without firing a shot, the tensioning lever 52 is held and the trigger 50 slightly withdrawn so that its trigger nose 50a emerges from the tensioning ratchet 49b j the retensioning lever 52 can now be moved slightly backwards * while releasing the trigger is, so its nose 50a under the action of the trigger spring 51 in the undercut safety catch 49a of the Hub part 46 engages. The mainspring 45 is extended

0098S2 / 026S

walking relaxed and at the same time the firing pin 44 is fixed in a position from which it would no longer receive enough impulse to trigger the shot even if the trigger was accidentally disengaged from the mainspring. To re-tension the lock, it is sufficient to press forward the clamping lever 52, the rotating hub part 46 bringing the safety catch 49a out of engagement with the trigger 50c; the forms of the Nachspannhebels 52 ER- _(follows (while simultaneously charging the Sohlagfeder) so '■. widely engaged to the hood nose 50a into the clamping notch 49b and thereby fixes the firing pin 44 back into the clamping position.

Another example is in the Pig. 3a and 3b, with the shutter open or loaded, relaxed. Here, too, a vertically movable breech block 62 is inserted in the breech box 61 of a hunting rifle, which has a stepped bore 63 which is coaxial with the barrel bore or the cartridge chamber in the closed position of the block and in which a firing pin 64 loaded by a helical spring 65 is guided with striker 64a. With the remote from the pin 64a the end of the firing pin 64 a of a pivotally mounted in the closure block 62, latch lever 66 of upwardly projecting arm 66a cooperates, whilst a second, after ■■ forwardly projecting arm is provided at its front side with two superposed notches 69a, 69b 66c , with which the trigger nose 70a of a trigger 70 mounted in the breech block 62 can interact. A trigger spring 71 seated on a pin in the locking block is supported on the arm 66a of the detent lever 66. This lever arm 66a also includes a] securing lug 67, with which a transversely displaceable safety bolt can cooperate 74, further J is poor articulated one end of a Iienkers 72a 66a on lever whose j other end a Iiängeschlitz having, in which ^a:

OÖÖÖS27O2 $ S

- 9 - ORIGINAL

Pin 72c of a Naohspannhebels 72 is guided, the after The bracket protruding from the breech block is denoted by 72b at the bottom. The one with its upper end in the breech block 62 pivotally mounted Naohspannhebel 72 is below the effect of a leaf spring 73.

In Pig. 3a, the closure block 62 has been opened by means of the clamping lever 68 and at the same time the closure has been cocked; the detent lever 66 is turned clockwise so far that the trigger 70a of the trigger 70 engages in the lower catch 69b of the lever arm 66b and thus holds the detent lever against the action of the trigger spring 71 in its cocked position. The pin 72c of the tensioning lever 72 lies in the area of the inner end of the longitudinal slot of the link 72a. If the lock is now closed, its elements are in an unsecured clamping position. By moving the latch 74 (to the left in FIG. 3a), it comes to rest behind the nose 67 of the lever arm 66a, so that the detent lever is secured against undesired relaxation. As already mentioned, however, it is often undesirable to leave the bolt closed when the rifle is loaded and in a cocked, albeit secured, state. For this purpose, the closure can be brought into the relaxed position shown in Fig. 3b by means of the clamping lever 72. In doing so, the clamping lever 72 is pulled back so far that the pin 72c lies in the outer slot end of the handlebar 72a, after which the trigger 70 is actuated; the notch lever 66 held in its clamping position by the tensioning lever 72 by means of the link 72a is now pivoted counterclockwise by slowly releasing the tensioning lever 72 until the nose 70a of the trigger 70 engages the upper notch 69a of the notch lever 66 (Figure 3b). The mainspring 71 was largely relaxed! 70 the residual tension of the mainspring 71 is not sufficient _for vm. Via & en catch lever 66

009862/0265

the firing pin necessary to trigger the shot To convey impulse. On the other hand, it is sufficient to pull back the tensioning lever 72 in order to release the detent lever via the handlebar 72a 66 under tension of the mainspring 71 clockwise to be rotated so that the trigger 70a engages again in the lower catch 69b, so that the lock is tensioned again and is ready to fire.

Of course, other embodiments of the block closure according to the invention are also possible; in all cases but it allows that which is expediently designed as a lever, directly or indirectly on one of the two striker springs acting actuating element so largely the breech without firing a shot and without opening the breech to relax that any residual tension that may still be present the mainspring can no longer emit an impulse that triggers the shot; retensioning also takes place without actuation the normal clamping mechanism directly by means of this actuating element serving as a clamping element.

009852/0265

- 11 -

Claims (10)

PATE Ii IA IT SP Ά U J3 CUE w ../ 'Block lock for hunting rifles, with' Spannniechanismus and with a firing pin, striker spring and trigger mounted in the moveable breech block, characterized in that in the breech block (2, 42, 62) an actuatable independently of the JpannmechanlGEius of the breech, on one of the The actuating element (12, 52, 72) that acts on the two stops of the '' impact spring (5, 45 'i'?) acts, which, by acting on the aforementioned i'e de stop, provides direct control when the lock is closed and the coil spring is tensioned. to relax the latter at least almost completely without firing a shot and then tighten 2-u again. ? .. Ilocl "closure according to AnspiTich 1, characterized in that the actuating element is a piebel (12, 52, 72) which is pivotably mounted in the / closure block (2, 42, ^ Z). 5. Block lock according to Anspi ^ uch 2, marked by, daoE at the middle of the liachsp annheb eic (12, 72) relaxed original spring (5, ^ i) the. "Pull (10, 70) by .Mnra ^ th in eir. e; icheran £ _sraste (^ a, 6 ', - a) eir.ej;.' iit deK firing pin ^ elcu.ppelten -Lasteneleinerjtes (6, 66; holds the firing pin (4, 64) in the. 4. Block closure according to claim 3, characterized in that ö.ass das. ^ astenelement a three-arraiger, scl-A / enkj ^, ar im Closure block (2) mounted Eebel (6), one of which Ana (6a) interacts as Hitnehner with the firing pin (4), while the second arm (6b) with a rabbit (12a) 009852/0265 - 12 - of the 1-axis tensioning lever (12) interacts and the third arm (6c) has a safety catch (9a) and a tensioning catch (9 "b)" for cooperation uit a nose (10a) of the trigger (.10), whereby iv bpannlage des With the trigger, the load lever can assume a first position in which the mainspring (5) is tensioned and the nose of the draft engages in the ratchet of the notch lever, as well as a second position in which the mainspring is largely relaxed, and the cheeses of the trigger engages in the safety catch of the load lever. 5. Block closure according to claim 4> characterized in that that said safety catch (9a) of the catch lever (6) is undercut so that the largely relaxed Striker spring (5) is secured with its nose in this catch engaging trigger in this position. 6. Block lock according to claim 5, characterized in that the Nachspannhebel (12) with two arms and in the area of the rear stop of the striker spring (5) in the pivoting plane of the trigger is pivotable, wherein the one lever arm (12a) with the second Rastenhebelarm (6b ) forms cooperating bevel , while the other lever arm protrudes downwards from the block behind the trigger and is designed as an operating handle (12b) . 7. Block lock according to claim 6, characterized in that a securing lever (14) is mounted on the pivot axis of the tensioning lever (12), which has a support surface (14a) for cooperation with a flattened part of a transverse pin (7a) provided on the second detent lever arm (6b) ) has, in order to secure the detent lever in the clamping position in which the trigger nose (10a) in the 009852/0268 - 13 - Clamping catch (9b) engages, - while the free end of the Safety lever (14) than below from the locking block (2) protruding operating handle (14b) is formed, 8. Block lock according to claim 3, characterized in that load element and actuating element by one single, in the pivot plane of the trigger (i? 0) pivotable Lever (52) are formed, the hub part of which for cooperation with a nose (50a) of the trigger (50) a Has a safety catch (49a) and a tensioning catch (49b), one lever arm (52a) carrying the firing pin (44) and which is supported on the other end on the closing block (42) Striker spring (45) serves as a stop, while the other lever arm (52b) is from the bottom of the locking block (42) outstanding operating handle is formed. 9. Block lock according to claim 3 »characterized in that the detent element (66) is a two-armed lever pivotably mounted in the lock block (62), one arm (66a) of which is intended to interact with the firing pin (64) and by means of a link (72a ) is connected to the clamping lever (72) by a pin-and-slot connection, while the other arm (66b) of the detent lever has a clamping detent (69b) , in addition to the aforementioned safety detent (69a), into which the nose (70a) of the trigger ( 70) engages in the clamping position of the lock. 10. Block lock according to claim 9, characterized in that said first arm (66a) of the detent lever (66) has a securing lug (67), a bolt (74) movably mounted in the lock block (62) in the clamping position of the lock with this Securing nose of the detent lever can be brought into engagement. MTBiTANWXiIi <fl. H. FtNCKE, DIPl.-IMG. H. BOHK CURING. 8.STASGM 0 Q 9 8 5 TTlTIbT - 14 -