EP1238241B1 - Safety device for a hammer in a fire arm - Google Patents

Abstract

Safety devices for use with a handheld firearm are disclosed. The safety devices include a lever that can be pivoted into the travel path of the hammer of the firearm to preclude the hammer from striking a firing pin. In an example, the lever is connected to the trigger such that the safety device is released when the trigger is pulled. In another example, the lever protrudes into the magazine shaft of the firearm such that the safety device is only released when a magazine is inserted into the shaft.

Description

The invention relates to a fuse for a handgun with percussion (preamble of claim 1), preferably a self-loading pistol with tap.

The tap of a handgun is usually made by Intervention of a component, usually the so-called rod or the Deduction, held in a locking projection, which in the Lower part of the tap is formed. Now drop the gun unhappy on the floor, then mass forces act the component and this against the force of a Lift the retaining spring out of the locking projection - the shot releases then accidentally.

In order to avoid this disturbance, many suggestions have been made been to trigger and safety devices to make it more effective and safer. Of these suggestions some are quite effective, but also complicated: like this it is known that the firing pin blocks or is lifted out of the movement path of the tap as long as the trigger is not pulled.

These known devices have sliding parts, when the weapon is dirty, unoiled or rusted are stiff and therefore difficult to pull off.

Furthermore, many securing parts are subjected to bending and can therefore break if necessary. So could even break out the locking projection of the tap. If namely, as is now customary, uses plastic taps, then you cannot rely on the centuries-old knowledge of materials fall back, as is the case with steel taps Case was, but you have to start with a very unlikely Take into account the incident.

Based on this problem, the object of the invention underlying, a smooth, the unwanted triggering a shot even if the Find weapon-avoiding fuse that is preferred also has a very high break resistance.

This object is achieved in that at first Securing the type mentioned above about a transverse axis swivel-mounted swivel lever near the path of movement the striker is attached so that its free end is in the stroke path of the striking piece, wherein the striking hammer with a contact point the free end of the one in the secure position Swing lever hits, and that the transverse axis approximately in Extension of the movement path lies.

A similar fuse is known from US-A-3,962,809.

The pivot lever thus prevents the striker on a firing pin or on the primer of a cartridge can open.

Independent of all other parts of the trigger mechanism a separate pivot lever is thus provided, the not in any marginal recess in the striker intervenes, but simply stands in its way. The contact point on the striker is chosen so that excluded any damage to the striking piece is.

The swivel lever, if a safety device is required, pivoted into the path of movement of the contact point, wherein he just swiveled around an axis, but not one Translation movement. The anti-movement The influence of dirt and rust is thus to a minimum reduced.

But the fact that the Swivel lever when it hits the striking hammer should catch, only in its longitudinal direction, but not is loaded in the transverse direction. The break of the swivel lever is practically impossible.

The transverse axis supporting the longitudinal lever is only under shear loaded; by choosing a sufficient thickness of the Axis, the risk of breakage can be reduced to a minimum.

By suitable arrangement and design of the swivel lever it is possible that the striker by means of the trigger device perform all of its operational movements can, even if the swivel lever is in its secure position located. It is therefore possible to use the secured Drill weapon without ever taking the risk there is a shot that was forgotten in the barrel becomes.

The backup according to the invention can also if it is coupled to the trigger so that it can only be pulled Trigger swung out of the path of movement of the contact point the so-called catch rest (first rest, safety rest) replace. If the tap is not pulled If the trigger is released, it does not fall into the catch stop, but instead on the swivel lever, which in contrast to the catch stop can't break out.

A swivel lever is also shown in US Pat. No. 5,225,612. This serves as a magazine backup and is in the backup position resilient from the guide rod of the striking spring, when the cock of a self-loading pistol is cocked, without a magazine being inserted. This swivel lever is then not loaded in the direction of its transverse axis, but at an angle to a fixed system pivoted, on which it lies stable.

A fuse is known in which an eccentric shaft when turning over the rear end of the firing pin protrudes and thus takes the discount. Fine gravel that splashes over the weapon can cause a particle behind the firing pin catches and thus the blow of the cock on the firing pin forwards. In the fuse according to the invention however, the tap can be blocked in any desired position be, the increased distance to the firing pin it excludes a particle from knocking the tap on can transfer the firing pin.

Furthermore, the swivel lever is close to the contact point formed a recess into which the pivot lever when immersed unscrewed knocking the striker. This Thought is known from US-A-4,352,317. Affect the above explanations regarding the catch in primarily a rooster. Here the transverse axis runs, about which the swivel lever can be swiveled, parallel to the axis of the rooster, and lies approximately on a tangent to the Circular path of the contact point, starting from the point, which the contact point assumes when it is on the swivel lever impacts. This arrangement is structurally simple, however extremely stable and reliable (claim 1).

Another embodiment of the invention is that the pivot lever is designed with two legs, wherein the two legs according to mutual mass ratio and correspond to the deduction after alignment (according to claim 2). This trigger is coupled to the swivel lever, preferably over the free end of the additional Leg. If the weapon falls to the ground and it does so Is exposed to mass forces acting on the trigger and try to swivel it, then they work Forces also act on the swivel lever and try to pivot this too. Here is the security position arranged so that the pivot lever by the action the mass forces moved to the security position or is held there. The consequence of the fall described above the weapon is then that the mass forces seek to pull the trigger, the same mass forces but at the same time strive for the pivot lever to keep in the secure position. The on deduction and Mass forces acting on the rocker arm thus lift each other at least so far that the trigger spring the trigger reliably holds its position.

The one equipped with an additional leg But pivot lever can also be arranged so that the free end of this leg by a spring in the empty Magazine slot of a multi-load weapon pushed in is (according to claim 3). The is in this position Swing lever in the secured position. Now becomes a magazine inserted into the magazine slot, then it presses the additional leg to the side and thereby swivels the swivel lever into the fire position. So a simple, but especially reliable magazine backup created.

The two safeguards described (fall protection and Magazine lock) can also be used together in one gun be realized with two swivel levers or even with one. In the latter case, the Swivel levers can only be swiveled into the fire position if the magazine is present and the trigger is pulled at the same time is.

Fig. 1

einen Teil-Längsschnitt durch eine Selbstladepistole mit Hahn und einem Schwenkhebel in Sicherungsstellung;

Fig. 2

eine Fig. 1 entsprechende Darstellung, jedoch mit dem Schwenkhebel in Feuerstellung und mit abgeschlagenem Hahn;

Fig. 3

einen Teil-Längsschnitt durch eine Pistole mit erfindungsgemäßer Magazinsicherung, in Sicherungsstellung; und

Fig. 4

einen Längsschnitt durch ein Pistolengriffstück mit der Magazinsicherung aus Fig. 3 in Sicherungsstellung.

The invention will now be explained in more detail using exemplary embodiments. The attached schematic drawing shows:

Fig. 1

a partial longitudinal section through a self-loading pistol with tap and a pivot lever in the securing position;

Fig. 2

a representation corresponding to Figure 1, but with the pivoting lever in the firing position and with the tap turned off;

Fig. 3

a partial longitudinal section through a gun with magazine lock according to the invention, in the locking position; and

Fig. 4

a longitudinal section through a pistol grip with the magazine lock from Fig. 3 in the locked position.

In all figures, a tap 1 is shown, which by one Tap axis 3 is pivotable. The swivel movement in a clockwise direction takes place against the action of a striking spring, which is indicated in Fig.4. When relaxing the striking spring tap 1 knocks off counterclockwise.

On its face in the direction of the tee the tap 1 has a contact point 9 and just below it an elongated recess 11, which - based on the tap axis 3 - extends approximately in the circumferential direction.

In front of and above the tap axis 3, on the weft direction and the normal firing position of the weapon is one for Cock axis 3 arranged parallel transverse axis 7, the central axis is located before contact point 9. Ideally is the transverse axis 7 on the tangent to the circle the center of the tap axis 3, through the contact point 9 passes through; touched in this contact point 9 also the tangent to the circle if the contact point is the 1 occupies the position. Slight deviations in the transverse axis However, 7 of this ideal location are permissible.

On the transverse axis 7 is a two-leg swivel Swivel lever 5 mounted, one leg of the 5a Tap 1 is opposite.

This pivot lever 5 can take two positions: a first Location, which is shown in Fig. 1 and Figs. 3 and 4 (the securing position) and a second layer, which is shown in FIG is shown (the fire situation). In the secure position the pivot lever 5 counterclockwise into one End position swiveled. The end of the facing the tap 1 Leg 5a is located exactly at the point of contact 9 when the tap 1 is knocked off. The rooster 1 is thus supported by said leg 5a; his Spring force is via this leg 5a and the transverse axis 7 introduced into the handle (only shown in Fig. 4).

Firing one is thus effective in the secured position Prevents shot because the tap 1 is its foremost Can't reach position on a firing pin hits.

In the fire position (see Fig. 2) is the pivot lever 5 on the other hand, pivoted clockwise, so that it moves into the Well 11 can dip. This is such that the movement of the tap 1 not by the pivot lever 5 is hindered.

The free, downward leg 5b of the pivot lever 5 is in the embodiment shown in FIGS. 1 and 2 coupled to the trigger device so that the trigger the trigger the swivel lever from the safety position of the Fig. 1 brings in the fire situation of Fig. 2.

The pivot lever 5 shown in FIGS. 1 and 2 is similar in that Form a little the deduction and is also in the same orientation like the trigger installed. If as a result of falling the weapon has mass forces on the trigger, those who try to pull it off have the same mass forces also on the swivel lever, but dress it in move the security position or keep it there. The Effect is therefore the opposite of the deduction; it cannot trigger a shot.

4 is a pistol grip with an empty magazine shaft 13 shown (magazine removed). The swivel lever 5 is in by a wire spring 15 (see Fig. 3) such a position moves that his turned away from the tap 1 Leg 5 b dips into the magazine shaft 13 if none Magazine is present. The pivot lever 5 is located then in its secure position (as shown in Fig. 3 and 4). If a magazine is now in magazine slot 13 inserted, then the pivot lever 5 pivots clockwise in its fire position. That way is one simple but highly effective magazine backup created, that of the other deduction and security devices can be completely independent.

But it is also possible to backup this magazine with the combine previous fall protection by either provides two pivot levers 5 or facing away from the tap 1 Leg 5 b forms so that it both with the trigger device as well as with the magazine can kick.

Claims (3)

1. A safety device for a small arm with hammer (1), in which a swivel lever (5) mounted for pivoting around a transverse axis (5) is mounted close to the path of motion of the hammer (1) so that its free end (5a) can be brought into the path of travel of the hammer (1), wherein the moving hammer (1) with a contact point (9) strikes against the free end (5a) of the swivel lever (5) situated in the safety position, and the transverse axis (7) is situated roughly on the extension of the path of motion and runs parallel to the hammer axis (3),
   characterised

   in that the contact point (9) is seated next to a recess (11) in the striker (1), into which the free end (5a) of the swivel lever (5) dips in its firing position and in that the transverse axis (7) runs parallel to the hammer axis (3), and

   in that the transverse axis (7) lies on the tangent to the curve of the contact point (9), proceeding from the position which the contact point (9) assumes when the hammer (1) strikes on the swivel lever (1).
2. A safety device according to Claim 1,
   characterised in that the swivel lever (5) comprises two arms (5a, 5b) extending on either side of the transverse axis (7) and is connected to the trigger in such a manner that the position of the swivel lever (5) corresponds roughly to that of the trigger,
   and in that the swivel lever (5), during its movement into the safety position, performs a swivel movement which corresponds to that of the trigger.
3. A safety device according to Claim 1,
   characterised in that the swivel lever (5) comprises two arms (5a, 5b) running on either side of the transverse axis (7), wherein the arm further from the striker (1) extends into the magazine well (13) of the small arm and in the absence of the magazine is moved by a spring (15) into the safety position, but in the presence of a magazine remains in the firing position.

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