FI109053B - Double-acting rifle - Google Patents

Abstract

The shoulder block (5) also encloses the second barrel (2) and is drilled out (7) round the barrel with clearance. The shoulder block is fitted out with adjusting screws (8,9) which are spaced out at 60 to 120 deg. round the second barrel so as to lie radially to the barrel axis (A2) with their inner ends against the barrel (2) casing. The two barrels (1,2) can move freely in relation to one another in an area ahead of the shoulder block (5), and also freely in relation to their axes (A1,A2). The two screws are offset by 90 deg. round the barrel rim and are set at angle (MU)= 45 deg. in relation to a centre plane drawn through the two axes (A1,A2). The screws are in turn diametrically opposed counter-screws (10,11) and the shoulder itself is enclosed by a removable front shaft at its forward end, using a shoulder block groove to lock the shaft into position.

Description

1 109053

DOUBLE PIPER RIP - TVÄPIPIGT GEVÄR

The invention relates to two-barreled rifles in which both barrels are firmly connected to each other only at their rear ends, otherwise they are movable towards each other in the direction of their barrel axes 5 and have approximately a barrel centered adjusting device for adjusting connected connector-10 pale.

Two or more barreled rifles should ensure that the barrels are free to expand at least in the direction of the barrel axis. Namely, if the two barrels were immediately connected to one another along their entire length, then, if the barrels were heated differently, the barrel pair would be distorted and, due to overvoltage, the barrels of each barrel thus disturbed would differ from each other. Different heating occurs each time only one barrel is fired. In addition, the multi-barrel rifles have a prior art adjusting device, with which the mutual position of the two barrel axes • »· 'in the mouth area of the barrel and the barrel in question. in the case also the center of the rifle barrel can be changed. With these adjustments, the • hit point of each barrel can be adjusted relative to each other.

DE 35 25 535 discloses a prior art double barrel rifle; t's ri having two superposed bullet beams, each of which, by means of an adjusting device arranged in the center of the barrel, adjusts the height of each barrel in relation to: / ·; to each other can be performed. In this case, the upper barrel: ··: has one downward facing connector in the middle and one upward facing connector in the lower barrel - * ”*. 35 launches The upper connecting piece engages one of the guide grooves 2 2 109053 in the direction of the red axis in the lower connecting piece, free of play, in one downwardly directed strip, thereby providing a non-backing lateral guidance. The height adjustment of each barrel shaft is obtained by an eccentric-5 screw extending transversely to the barrel axis, which is screwed into the lower joint and engages with a longitudinal hole in the list of the upper joint. Turning the eccentric screw around its axis provides height adjustment for each barrel. However, the adjusting device 10 is very expensive to manufacture because not only the bar and the guide groove must adhere to each other without play but also the eccentric must adhere without play to the longitudinal hole. In addition, the bar and the guiding groove in the barrel direction must be closely aligned with each other, otherwise over-stresses can be obtained in different ways as the barrels expand. Precise adaptations such as these make manufacturing more expensive.

In addition, adjustment is questionable when there is wear between the bar and guide groove and the counter, longitudinal bore and eccentric. Adjustment is then hardly possible. Since these adjusters can only change the height of each barrel axis relative to::: a second * ·· adjuster is arranged within the barrel area to allow lateral adjustment of each barrel relative to each other. Excluding:, ·. that this second adjuster further raises the manufacturing cost because it has the disadvantage of not allowing the barrel to oscillate transversely against the barrel. This will adversely affect the power of the shot: i: 30.

I | The same disadvantage is known from another patent DE 34 15 852, which relates to a double barrel gun, in which a barrel is provided with an adjusting device which enables both barrels to be adjusted both in height and in side.

Thereby, one of the barrel ends is surrounded by one longitudinally movable sleeve, and for adjustment 3 109053 in each direction are provided with threaded adjusting members on each barrel, one of the bearing parts being rotated in the foreground which is fixedly connected to the other barrel.

5 When using this unit, it has been shown that the adjustment made is fully maintained for only a few shots.

Finally, DE 28 43 363 further discloses a double barrel rifle, in which the barrel 10 is fixedly connected to a barrel beneath it, along its entire length by means of a longitudinal bar. The support barrel is provided with a substantially thinner second barrel (bullet barrel), the mouth of which is adjustable with respect to the support barrel by means of two adjustable adjusting screws 15 to 90 ° circumferentially and one flat spring acting against these screws. Between the barrel mouth and the rear barrel head, the bullet bar is once more supported on the barrel so that when the balloon heats relative to the barrel and thus also to the other barrel, it can move in the direction of the barrel.

. In spite of this, on both sides of each barrel: the movement of a known weapon may result in a · · * * change of point. This is because the support barrel 25 is connected along its entire length to the shotgun. When:. ·. As the barrel becomes warm as a result of multiple shots, but the barrel remains cold, it may happen that the barrel and the barrel are bent. The same can also happen - '*: 30 if the shotgun is fired first. Otherwise, this type of construction is relatively cumbersome and heavy because: in addition to the bullet barrel, the surrounding support barrel must be present. Finally, even in this structure, the two barrels in the mouth of the rifle cannot move sideways or freely against each other.

It is therefore an object of the invention to disclose a double-barreled chimney of the prior art, in which the structure of the adjusting device in particular is simple and thus inexpensive to manufacture, in which the oscillation of each barrel through the adjusting device is not unfavorably prevented. , or when needed can also be done easily and quickly again.

This is achieved in accordance with the invention in that the connecting piece encloses the second barrel and 10 shows a longitudinal hole surrounding the second barrel at a distance such that the connector has at least two at least 60 ° and not more than 120 ° reciprocally offset, radially and with its head a rotatable adjusting screw resting on the casing surface of the other barrel, and that both barrels in the region of the connecting piece are also movable transversely to each other in the transverse direction of the barrel of the barrel.

In a rifle according to the invention, the adjusting device has a particularly simple construction and consists of only a few simple-to-manufacture rifles; of the connecting part and two ··· or more adjustment screws. The adjusting device is thus preferably manufactured. With one single adjustment; ·. the device can adjust both barrel axes both vertically and sideways relative to each other. The adjusting device is at the same time an adjusting member and a connecting member for each barrel. The adjusting screws · '' · 30 allow for non-backward adjustment of each barrel transversely to the barrel axis, but are always held: unobstructed longitudinal transfer of each barrel against each other is possible when either barrel • heats up. Thus, the warming up of each barrel 35 in no way affects the point of impact and the · · shot power. Furthermore, since both pipes are prior to the connection piece, i.e.. between the barrel and the connecting piece, approximately halfway between the barrel and the connecting piece, they may also oscillate freely in the transverse direction, thereby improving the effectiveness of the shot. The set adjustment is maintained for a long time 5 and, thanks to the adjusting screws, it can always be easily and simply adjusted, above all without any play. Thus, it is also possible to quickly and simply shoot in a new cartridge charge lab or various concealer bullets. Because the adjusting-10 device is arranged exclusively in the center of the barrel and no more towards the barrel mouth, it can also be easily covered by a suitable front strut formation. Thus, it is possible to make all parts of the adjusting device very stable. Because the adjusting device which permits the height and lateral adjustment of the barrels 15 is arranged in the center of the barrels, relatively large adjustment distances in each direction are possible, which are even more effective at the mouth of the barrel. Thus, greater tolerances can be allowed in the installation of the barrel visit, i 20 resulting in a significant reduction in installation costs.

|

DE 28 16 128 discloses a double barrel rifle, in which the lower barrel has a mouthpiece attached to it which encloses the upper barrel and has a longitudinal hole 25 surrounding the second barrel at a distance and •.

, * with three circumferential 120 ° displacements: ·. projecting radially with respect to the barrel axis and resting at its inner ends on the casing surface of the upper barrel,. the adjusting screw. However, this adjusting device • »· 30 in the mouth area affects the vibration behavior of the two barrels because it rigidly connects them to the barrel axis across this mouth area. In addition, the barrel mouth adjuster should be made relatively small and light so that it does not substantially affect the appearance of the rifle.

However, such a lightweight design is detrimental to the barrel's operating stability. Jointly, DE 35 25 535 and DE 28 16 128 do not disclose that both barrels in the region of the connecting piece arranged in front of the center of the barrel are also freely movable transversely to the barrel axis so that they do not adversely affect either barrel through the adjusting device. vibration behavior.

A particularly preferred embodiment of the invention consists in the fact that both adjusting screws 10 are displaced about 90 ° relative to one another in the circumferential direction.

In this way, the adjustment of the barrel shaft can be performed particularly efficiently.

Another preferred embodiment consists in the fact that each of the adjusting screws is each arranged at an angle of about 45 ° with respect to one of the median planes passing through each of the twin axis. With the adjusting screws in this arrangement, they engage relatively large lengths with corresponding screw-threads in the connector. For this reason, the connecting piece 20 can be formed relatively thin in the transverse direction and its width in the transverse direction can only correspond to the outer diameter of the larger barrel. In this way, a particularly compact ···· design is achieved.

25 It is also advantageous to have both adjustment screws ·. always has a diametrically arranged ·; · opposite screw. In this case, the adjusting screws and the counter screws have an adjusting and counteracting effect at the same time. However, the counter-screws may be omitted if the second barrel at its rear barrel head is connected to the first barrel, ·, · in such a way that the second barrel is always supported by a certain prestress on each of the adjusting screws.

The intended embodiment example 35 consists of providing a removable front bracket, the front end of which encloses the coupling piece, and the coupling piece has a coupling groove 7 for the front bracket locking latch. The front support completely covers the joint and thus improves the appearance of the rifle, as the adjuster is then invisible. In addition, this appearance of the connector also further fulfills the retaining effect for the front struts.

In the following, the invention will be described in detail with reference to the exemplifying embodiment shown and the accompanying drawings, in which Figure 1 is a side view of each bar 10 having an adjusting device Figure 2 is a cross-sectional view along line II-II in Figure 1;

The two barrels 1 and 2 arranged in parallel and superimposed relative to each other are soldered from their rear ends 1a, 2a to the so-called lock part 3 and tightly connected to each other through this latch part. Approximately in the center of each barrel is arranged 20 adjusting means 4. This is a substantially rectangular connection piece 5, the upper end of which is provided with a semicircular recess 6. Through this recess 6, the connection piece 5 is soldered to the upper barrel 1 and is thus integral therewith. The connecting piece 25 also has one longitudinal hole 7 extending in the direction of the barrel axes A1, A2, · · ί, which surrounds the other barrel 2 at a distance. In addition, two adjusting screws 90, 9 which are displaceable relative to each other 90 ° to the other barrel 2 are provided on the connection piece 5. These adjusting screws 8, 9 arranged radially against the red axis A2 1 are screwed into the corresponding nut threads of the connection piece 5. They; ··· rest on the inner surface 8a, 9a of the casing surface of the second barrel. In this case, the two adjusting screws 8, 9 are respectively * ··· 35 arranged at an angle μ, 45 ° in each case, relative to the mean plane M. passing through each of the silicon axis A 1, A 2 A2. The counter-screws 10, 11 may be omitted if the two barrels 1,2 are connected to each other through the locking part 3 so that the barrel 2 with the upstream bias 1 of the barrel 1 is supported by each of the adjusting screws 8, 9.

In front of the connector 5 in the region, m.p. in area B between the barrels Ib and 2b and the connecting piece 5, neither barrel 1, 2 is connected to one another, p. is completely free against each other. Possibly in this region, for optical reasons, a spacer may be provided between the two barrels 1,2, for example, of an elastomeric J material which is however connected to only one of the two barrels 15 and thus does not prevent axial movement or transverse movement of either barrel 1, 2. . It must be ensured that both barrels can oscillate freely in area B. The opposing longitudinal movement 20 of each barrel is secured by tightening the adjusting screws 8, 9 and counter-screws 10, 11 only so as to provide a clearance-free barrel 2 in the junction box 5, the longitudinal displacement of the barrel 2 relative to the weather ···: screws 8, 9 and counter-screws 10, 11 while still possible. For all screws 8-11; to remain in their adjusted position, it is intended to provide a strip of screws 12, which extends in the direction of the barrel, I, · bracket AI, A2 for each of these screws, which,, is tightened as soon as the adjusting screws · ;; * 30 8, 9 and counter screws 10, 11 have been completed.

Advantageously, the connecting piece 5, as shown in Fig. 3, may be enclosed within the front end 13a of a removable front support 13. In this case, the connecting piece 5 may also serve as a holder for the front support 35 13. To this end, it is provided with a gripping strap 14 which engages the front strut latch 16 under the action of a spring 17.

Claims (6)

109053 9 A double barrel rifle, in which both barrels (1, 2) are firmly connected to each other only at their rear ends (1a, 2a), otherwise the barrel axis 5 is movable freely towards each other and has an adjusting device (4) between the barrel axes. the position for adjusting the point of impact is adjustable, wherein the adjusting device has a connecting piece (5) integral with the barrel, characterized in that the connecting piece (5) encloses a second barrel (2) and points to a longitudinal hole (7) surrounding the second barrel (2) at a distance that the connecting piece (5) has at least two rotatable adjusting screws displaceable at least 60 ° and not more than 120 ° in the circumferential direction of the second barrel (2) radially supported on the barrel axis (A2) and internally (8a, 9a). (8, 9), and that both barrels (1, 2) in the region (B ) in front of the coupling-20 (5) are also transversely movable against each other against the silicon axis (A1, A2). :: 2. The rifle according to claim 1, characterized in that the two adjusting screws (8,: 25 9) are offset relative to each other by about 90 °. • · · A rifle according to claim 2, characterized in that the two adjusting screws (8, 9) are each arranged at an angle (μ) of about 30 ° to 45 ° with respect to the central plane (M) passing through each of the barrel axes (A1, A2). . Rifle according to one of Claims 1 to 3, characterized in that at least one counter-screw (10, 11) is provided on each of the adjusting screws (8, 9). 10 109053 A rifle according to claim 4, characterized in that the counter screw (10, 11) is arranged diametrically opposite each adjusting screw (8, 9). A rifle according to any one of claims 1 to 5, characterized in that the removable front support (13) has a front end (13a) enclosing the connecting piece (5) and the connecting piece (5) having a gripping groove (14) for the front latch locking catch (16). 109053 11