DE201946C - - Google Patents

Description

SS "fawn, bet

IMPERIAL

PATENT OFFICE.

PATENT LETTERING

CLASS 72 h. GROUP

KARL EBERT in M.-GLADBACH.

Recoil loader with knee joint lock.

Patented in the German Empire on June 9, 1906.

Firearms with a knee joint lock are already known.

However, all of the knee joint arrangements known on firearms are correct (apart from of their structural distinguishing features) agree in their mode of action, that the greatest path of the occluding organs influenced by them is in no case greater than the simple length of both joint members put together. Through this. but will their application, especially for military rifles, which are intended for certain forms, Dimensions and weights are bound to be impossible because of the great length the common military cartridges also the ways of the related locking organs their loading movements must be correspondingly large and this requires lever lengths that cannot be accommodated in any rifle.

The present invention now offers the possibility of using the knee joint lock even in portable firearms, be it with those with a fixed barrel, be it with a movable one. Run, apply without the above to exceed the mentioned dimensions of the same.

■ It should be noted that in the case of weapons

the knee joint can be brought into its extended position with a flexible barrel, so so that it forms a secure seal. The closure is when sliding back Barrel opened in a known manner. In the case of weapons with a fixed barrel, on the other hand, which ones

the opening pulse while sliding back of the barrel is missing, "but which undoubtedly come for military purposes in the first place in question, it is not 'feasible that knee to stretch completely; it must rather within gewisser'Grenzen (something ⁰⁾ durchgeknickt stick around without Use of external means to be able to be opened only by the gas pressure.

In this position, however, the closure might not be sufficient at high gas tensions Provide security against premature opening, and it is therefore, if it is a weapon with a fixed barrel, knee-joint locks In general, the arrangement of suitable pressure pieces (impulses) is of great advantage. But especially with The present swinging joint lock means are indispensable, which in novel way on the one hand the resistance of the lock in its closed position, when Able to intensify sharpshooting to the extent necessary, but on the other hand reduce this resistance accordingly when shooting with blank cartridges , should, or if the shutter should be opened by hand.

The drawing shows, for example, a military rifle with a fixed barrel shown what the present invention consists of and by what means it is based underlying purpose: »To increase the extension length of a knee joint without lengthening it his articulated limbs "is achieved.

Fig. 1 shows the locking system of an infantry rifle with the new knee joint

arrangement in vertical longitudinal section, shutter closed, firing pin cocked, for Finished firing;

Fig. 2 shows the position of the knee joint with respect to the occluding organs influenced by it in the closed position, in view; Fig. 3 shows a cross section along the line I-I of Fig. Ι with the arrangement and storage of the pair of toggle levers in the rifle case

ίο and on the locking cylinder;

Fig. 4 shows the schematic representation of the new knee joint with its largest Stretched length;

Figures 5 through 9 show details.

The lock shown is a straight pull lock, the lock cylinder d below. the constant pressure of a recoil spring e , which absorbs the recoil and restores the readiness to fire by pushing the breech cylinder into its closed position and loading the barrel with a fresh cartridge.

In order to obtain the effect of the recoil spring as uniformly as possible and regardless of whether the firing pin is cocked or not, a special firing pin spring f is arranged in such a way that it intensifies the effect of the recoil spring when the weapon is knocked off. Both springs e and f are guided through a spring sleeve h , which is inserted or screwed in a bayonet-like manner in the rear part of the rifle sleeve α. After they have been removed, the springs can be taken out of the rifle case to the rear.

The closure of the lock housing upwards and the securing of the spring sleeve in it is effected by the semicircular chamber cover b, which, as can be seen from FIG. 3, is held on the rifle rail by means of strips b ¹ and is correspondingly secured against arbitrary displacement.

After the chamber cover b vou of the rifle case α has been removed, the bolt cylinder d together with the firing pin g and the knee joint Z, m can also be removed from the case upwards.

All the other parts causing the firing and safety of the weapon are, As can be seen from FIGS. 1 and 5 to 8 of the drawing, mounted on the trigger guard rail c, which also forms the lower part of the magazine box and closes the lid the latter and its fastening means. . . '

As can be seen in FIGS. 1 and 2, which show the lock in readiness for fire in the closed state, the knee joint /, m which supports the lock, hinged to the rifle case at P- and to the breech cylinder at m ¹ , is the kink point of the joint lies between I ¹ and m ¹ at m ³ .

The joint itself is designed as a punch-through joint, which, as shown in the schematic Fig. 4 shows around the specified point on both opposite sides can swing through and a stretched length equal to twice the length of both joint links enables.

In the present case, the fully extended position of the joint to the left is not reached; it is only in the closed position of the shutter. (i.e. to the right) exploited; however, even with this arrangement, the stretched length, ie the distance covered by the locking cylinder d and thus also by the point tn (FIG. 2), is half longer than both joint members together. 3 shows the way in which the new knee joint is installed between the rifle case and the breech block in order to be able to fulfill the intended purpose in the case of the breech block chosen here as an example.

The positions of the individual organs of the new locking system when the lock is established take each other, can be seen from Figs. ι and 2.

In the present embodiment, as shown in FIG. 1, the pulling off takes place by the movement of the pulling rod n, which, swinging around the fixed point n ¹ , under the action of a spring n ² and by means of a bolt n ^a in loose connection with the trigger lever 0 is, which swings around the fixed point o ¹ and is effective in a suitable manner on the required clamping elements. . . '

The loaded weapon is secured in the usual way by changing a safety shaft φ by about 90 °. In the present case, this is arranged in the trigger guard rail c (below the trigger bar η and the trigger lever 0) and is moved by the safety wing q ¹ . . The full part of the safety shaft occurs under the lever 0 (Fig. 1) and with the free end of the lever under the knee joint member m, whereby the trigger and the knee joint! Are determined.

FIG. 4 shows how the new knee joint used here develops in order to allow the points a * and b * to swing around c * to reach the dotted positions α ¹ * and b ¹ * .

In FIGS. 5 to 9 of the drawing it is shown in which way the pressure pieces r (impulses) used in the rifle with a fixed barrel selected here as an example interact with the knee joint.

The thrust pieces r (Fig. 9) are suitable, shaped plates that are loosely attached to the inside of the rifle case with pivot r ^{1 close to the back}

direct magazine wall (Fig. 5 and 8, one left and one right) are stored. They are at their lower (reinforced) end r ² under the pressure of a spring s, which is supported against the rear magazine wall.

With an inwardly protruding lug w (Fig. 5), the pressure pieces are in the position of use, while the lower edge of the front knee joint m and exercise ( swinging around r ¹ ) under the action of the spring s on the same one on extension (closure ) of the joint from directed pressure, the strength of which is essentially determined by the length of the lever arm P-, υ , but which can be regulated within very wide limits by using correspondingly strong springs s. .

The closure produced in this way now offers every security against premature opening during sniper shooting; but it also prevents the opening by hand to prepare the fire and excludes the use of blank cartridges if the closing effect of the pressure pieces r is not partially or completely canceled beforehand.

This takes place indirectly through the rotating body p, which secures the loaded weapon, or through the two lugs p ¹ , p ¹ arranged on the same, through corresponding adjustment of the safety wing q ¹ .

. This safety wing q ¹ engages the rotating body p with a toothing and is mounted in the trigger guard rail with its hub q in the manner shown in FIGS III can be switched if the loaded weapon is to be secured, or in the. Position II, if it is a question of canceling the closing effect of the pressure pieces and, if necessary, also causing the knee joint to partially buckle.

The Fig. 7 and 8 show how the

The safety catch q ¹ is mounted with its hub q in the trigger guard rail c by being in

"an upwardly open pocket is inserted on the latter and held and centered by a body u, which is axially displaceable in the rail c, under the pressure of a spring t , but is secured against rotation by a rib u ¹ and is arranged with his pin u ² enters the bore of the hub q of the locking wing, the locking wing in its three positions I, II, III is determined by warts u ³ , which are provided on the end face of the body u and in corresponding notches on the end face of the Jump in hub q .

Fig. 5 shows the position of all parts to each other during sniper shooting, the safety wings in its basic position I.

If the safety wing is now switched from I to .11, all parts assume the position shown in FIG. The safety shaft p slides with the lugs p ¹ , p ¹ along the profile r ⁴ at the lower end of the pressure pieces / and rotates it by overcoming the pressure of the springs s so far around r ¹ that w is released from ν and the beak r ^z (Fig. 9) presses on the end of the joint I and thereby opens the knee joint somewhat (Fig. 6). .

Is used after the first loading movement or shooting with blank cartridges if the safety catch is turned back to its basic position I, the weapon is again for sharp shooting ready.

Claims (3)

Patent Claims: i. Recoil loader with knee joint lock, characterized in that the Knee joint forms a punch joint, the possible extension length of which is greater than the length of its joint links taken together. 2. recoil loader according to claim 1, characterized in that to increase the closing effect of the breech on the one hand and to initiate the opening movement of the breech on the other hand, special spring- loaded pressure pieces (r) are used, which by suitable switching devices for one or the other mode of action Weapon can be adjusted. 3. Recoil loader according to claim i, characterized in that the setting of the pressure pieces (r) in their position of use by changing the safety wing (q ¹ ) takes place, which is effective in a corresponding manner on a rotating body (p) with lugs (pi, p ¹ ) which also secures the tensioned impact parts. 1 sheet of drawings.