WO2007087866A1

WO2007087866A1 - Adaptor for a rifle

Info

Publication number: WO2007087866A1
Application number: PCT/EP2006/012085
Authority: WO
Inventors: Klaus Münst
Original assignee: Heckler & Koch Gmbh
Priority date: 2006-01-12
Filing date: 2006-12-14
Publication date: 2007-08-09
Also published as: DE102006001658B4; ZA200805968B; KR20080089590A; CA2631790A1; DE102006001658A1; EP1971816A1; CA2631790C

Abstract

The invention relates to an adaptor (9) for fitting of an appliance, in particular of a Harris bipod on a projecting rail or father rail (7), in particular a Weaver or Picatinny rail, of a rifle, of a crossbow or the like, of an appliance which on the upper face has contact surfaces (11) and a tie rod for firmly clamping the appliance on the father rail (7), characterized in that the adaptor comprises a mother piece (2, 3) which fits the father rail (7) and is able to engage behind the flanks of the father rail (7) and which, on its lower face, has mating surfaces (35) in order to make contact with the contact surfaces (11), has a device for fixing the mother piece (2, 3) on the father rail (7) and comprises a block (23) which projects downwards from the mother piece (2, 3) and is arranged between the mating surfaces (35) in order to hook in a tie rod. The mother piece may be composed of two parts.

Description

Adapter for a rifle

The invention relates to an adapter for mounting a device, in particular a harris bipod, on a projecting rail or paternal rail, in particular a Weaver or Picatinny rail, a rifle, a crossbow or the like, wherein the device at the top

Support surfaces and means, in particular a tie rod for clamping the device has on the parent rail.

A similar adapter for mounting a bipod for a rifle is disclosed in US 2005/0188588 A1 and US 2005/088597 A1.

In the following, it is assumed that the normal position of a rifle and the attached device in the form of a bipod, that is, with horizontal axis of the soul and horizontal transverse axis. In this context, "up" also means "towards the rifle" and "down" also "away from the rifle." However, other devices with similar mechanics such as this bipod are also conceivable and these devices do not need to be mounted under the rifle ,

The Harris Bipod has long been known for outfitting benchrest rifles, military sniper rifles, and all rifles that require a safe, steady pad to deliver a precision shot. A variety of shooters have such a Harris bipod, and almost any rifle can be equipped with one. This Harris bipod features two elongated, padded, to

Horizontal midline slightly inclined bearing surfaces on. Between the bearing surfaces, two substantially vertical, strong fingers are arranged, which lie next to each other in the transverse direction and at the upper end of each pin is attached. The pins run horizontally, are aligned and facing each other. The fingers can be moved upwards by means of a knurled screw, where they can move apart against the action of a spring, or downwards, where then the

Fingers run into a backdrop that pushes them and thus the pins together and makes their movement apart impossible.

On the forearm of the rifle is located on both sides and symmetrical to the longitudinal axis in each case a counter surface. Between the mating surfaces sits a block, which has a transverse bore. The block may e.g. sit on a slide which is inserted and screwed into a central, horizontal, embedded dovetail longitudinal rail or mother rail, or may e.g. be screwed directly onto the shaft.

When attaching the bipod, its fingers are moved upwards and pressed apart against the action of the spring until the pins are on either side of the transverse bore of the block. Then the fingers are released, so that the pins are incident in the transverse bore. Finally, the knurled screw is tightened, whereby the fingers are moved by means of a lever down and in turn pull the block and the mating surfaces with you down until bearing surfaces and mating surfaces come into full support.

The particular advantage of this known bipod is that it can be removed when not in use and only when needed needs to be attached, so that, for example, a shooter several

Having rifles that are suitable for attaching a bipod, but this requires only a single bipod. A disadvantage, however, is that a protruding pin must be firmly attached to the rifles. For reasons of strength, it is not advisable to loosen the block, since the thread or threads could otherwise deflect its attachment; In any case, this tool and some skill is required. Thus, as a rule, the protruding block remains on the rifle, where it is a hindrance, unless the bipod is attached.

The rifle maker should rebuild a rifle to attach a bipod. The clean introduction of the clean thread or requires namely craft knowledge that does not own a hobbyist.

Usually, the bipod is mounted as far forward as possible on the rifle. But sometimes the terrain where a sniper wants to post himself can change

Make attachment point desirable, or it is about desirable to insert a laser rangefinder in front of the bipod in the mother rail. Such an arrangement is then not possible for structural reasons.

Recently, the attachment of additional equipment (sighting device, laser rangefinder, night aiming device, headlights, additional handle, etc.) has become increasingly important, so that special, protruding, relatively wide rails or paternal rails (so-called Picatinny or Weaver rails) on the Front of weapons of all kinds are attached, even on the underside of the shaft or hand guard. It not only new rifles are provided with such rails, but it can also be equipped with rifle rails existing rifles. There These rails are relatively wide and quite long, they do not interfere with the support on the body and do not remain in bushes o. The like. Hang.

About such a rail are devices that with a

Nut rail or a mother profile are provided, simply postponed. If the jaws of the nut profile are movable, the devices are also hung from above, from the side or from below and tightened. In the latter case, the devices can engage in a transverse groove of the parent rail, whereby slipping along the parent rail is impossible.

On the underside of such, mounted under the barrel rail could be placed at any time a block, as provided for the attachment of the above bipod. However, it would be necessary to accept the above-mentioned disadvantages which have such a projecting block. In addition, no other device can be postponed to a rail on the front of such a block.

The aim of the invention is the abovementioned disadvantages in a rifle o. The like. counteract with a particular down attached parent rail.

This object is achieved according to the invention in a known adapter in that he

a mother piece which fits on the parent rail and which is able to engage behind the flanks of the parent rail and which has counter surfaces for supporting the bearing surfaces on its underside,

- Has a device for fixing the nut piece on the parent rail, and - Includes a protruding from the nut piece down block, which is arranged between the mating surfaces to hook a tie rod.

According to the invention the block is not attached to the parent rail, but on a mother piece. The nut piece can not only be easily removed after releasing the means for fixing it from the parent rail, but also displaced as desired, such as when another mounting location is desirable or unavoidable.

Now you might think that the attached mother piece with the block would be a major obstacle if the device or bipod is removed (if the following is the bipod is not only a Harris bipod, but also any device with the same Fastening arrangement meant). However, the bipod remains firmly attached to the block; at least when the bipod knurled screw has to be loosened, the fingers are not moved apart or pushed apart, so that the bipod always remains at the block. The situation that the separate block protrudes from the nut piece, while the nut piece is attached to the rifle, does not occur when used correctly, since with removal of the bipod from the rifle always the mother piece is removed with. The disturbing, protruding

Block, which constitutes the greatest disadvantage of the Harris bipod, does not appear according to the invention.

Should the bipod be used on a weapon that does not have a Weaver or Picatinny rail or the like

(Parent rail), the free ends of the fingers of the bipod are squeezed with the knurled screw and the mother piece with block removed. However, this takes place only after acceptance of the entire arrangement of bipod and mother piece of the parent rail. A shooter holding a gun acquired with father rail or a father rail at one

Not only can his Harris Bipod continue to be used, but he can still use this on his previous rifles, which have no parent rail, but only one protruding block.

It is possible, for example with a particularly narrow forend, to insert an intermediate piece between the nut piece and bearing surfaces of the bipod, which carries the counter surfaces. However, it is preferred that the underside of the nut piece has the size and shape of a cutout, preferably the front end, forearm or hand guard of a rifle or the like. The mating surfaces are thus formed directly on the underside of the nut piece. Since a Weaver or Picatinny rail is relatively wide, the nut piece does not have to be excessively widened. If the nut piece is made of metal, such as an aluminum alloy, or of hard plastic, it is also possible to make the mating surfaces narrower than the bearing surfaces of the bipod. The resulting high surface pressure is harmless for a nut piece made of metal or hard plastic. The length of the nut piece, seen in the longitudinal direction of the rifle, however, should preferably at least equal to the bearing surfaces.

It would be possible to introduce into the mating surfaces transverse grooves or slots for weight reduction. However, according to the invention, each of the opposing surfaces is integrally formed integrally. Since the bearing surfaces are provided with an elastomeric pad, this would be pressed at the edges of the slots and damaged during firing in the long run. However, it has been found that the continuous longitudinal edges of the nut piece when it is laterally from the bearing surfaces is exceeded, because of their lower load no

Cause damage to the elastomeric abutments of the bipod.

If the nut piece is integrally formed, then it becomes, like a conventional riflescope, on the rail

(mostly) pushed from the front. If there is already a headlight or a laser rangefinder on the front of the rail, it must first be removed. Subsequently, the bipod is pushed with adapter and finally the headlight or laser rangefinder attached again. This is a bit awkward. To avoid these circumstances, it is proposed according to a further preferred embodiment of the invention that the nut piece has two parts which are pivotable about a longitudinal, central pivot axis, so that they firmly embrace the side edges of the parent rail during pivoting and thus the means for fixing form the adapter on the parent rail. Here, therefore, first the one-piece nut piece is changed into a two-part, which means a certain effort. It turns out, however, that you can not only put the adapters and thus the bipod at any point of the parent rail transverse to this and remove, but that thereby the locking device is replaced by the two parts. In addition, the locking device is operated by the bipod. Namely, when the thumbscrew of the bipod is tightened after placing it, each of the bearing surfaces pushes the corresponding mating surface upwards, where it engages around the edge of the parent rail and clamps against this against the other part. When removing the two parts swing apart when the knurled nut of the bipod is released again. The adapter remains on the bipod, as long as the two free ends of the fingers are not compressed in a dissolved state. For placing and removing the bipod thus the same and only the same handles are required as without adapter, but it is not a fixed block required, as would be the case without an adapter. Rather, the bipod with its adapter can be placed on any suitable paternal rail and at any place where space is. After removing the adapter, the weapon is not changed, so there is no protruding, obstructing block available, as was previously the case without an adapter.

In this case, according to the invention, a further embodiment preferably consists in that at least on the upper side of one of the pivotable parts a projection or a rib is formed for engagement in a transverse groove of the parent rail. This embodiment is preferably applicable only where the

Rail has transverse grooves. In this case, as when retracting the weapon, so if forces are applied parallel to the axis of the soul on the adapter, the surfaces of the adapter, which laterally embrace the parent rail and clamp the adapter there, not burdened. Rather, the load is transmitted through the rib directly to the parent rail.

It would be possible to form the block in one piece with the nut piece, at least when this too is in one piece. According to a further embodiment of the invention, it is particularly advantageous that the block of metal, preferably made of steel, and protrudes from the underside of the adapter. The nut piece or parts thereof may consist of light metal alloy or plastic. As long as the anchoring of the block is reliably solved in this light metal or plastic, so a particularly stable, but (because of the possibility of pressure or injection molding) also particularly cost-effective solution is achieved. It is immaterial how high the surface pressures when hooking the pins of the fingers of the bipod, because if for the If a suitable metal is selected, these surface pressures are still far below the load limit of the material of the block.

For the two-piece nut Stuck another embodiment is preferably proposed, which consists in that the block has on its upper side a long sleeve, which is penetrated by the pivot axis. The pivot axis, which is inexpensive to produce from any metal as a simple rotary part, is supported over a large area on the two parts of the

From mother piece. The pivot axis passes through the sleeve, so that a safe Abstutzung is found. In addition, care is taken to ensure that the block can take a position to each of the two parent pieces with appropriate design, which corresponds to half the angle that both mothers take each other.

In order to simplify the removal of the bipod with adapter, it is preferred that the two parts of the adapter are printed by a spring in a position in which they

Release parent rail. Also, the placement of the adapter is thereby simplified, because the spring ensures that both parts of the mother's piece are spread apart when they are not printed together by the trays. So it is also possible to put on over head, so a touchdown from above on the turned up rifle.

It is particularly advantageous that the spring is designed as a wire spring, which is wound around the pivot axis and prints from above with each of its legs on one of the parts of the adapter. The spring is thus a simple, particularly inexpensive wire bending part.

The adapter consists in a favorable training only from a total of five parts, of which only the block something is more expensive to produce, such as a precision casting. The other parts are simple Druckguß- or bending parts for the parts of the nut piece, a simple automatic turning part for the pivot axis and a bending part for the spring. Optionally, a spring ring for holding the

Swivel axis required. By far the most expensive of these parts, namely the block, was previously required. However, not only the attachment of the unmodified bipod on a paternal rail is made possible for this small, additional effort according to the invention, but also the attachment at any point without a trace remains after acceptance.

It is further preferred that the block on the longitudinal sleeve has an upstanding nose, which is intended for engagement in a transverse groove of the parent rail. This nose is used when attaching adapter and bipod on the parent rail in a transverse groove of the parent rail and drops slightly when tightening the thumbscrew, but not so far that it passes out of the transverse groove. Thus, the nose in the same way the seat of the two

Parts of the mother rail in the weft direction sure, as have made the above-mentioned projection or the rib, which can therefore be omitted in the nose.

The object of the invention is at a

Embodiment explained in more detail, which is shown in the drawing, but should in no way limit the invention. In the drawing shows:

1 shows a hand guard of a rapid-fire rifle in side view, with the attached adapter, the bipod is omitted for the sake of clarity,

2 shows the longitudinal section (section AA in Fig. 3) through the illustration of Fig. 1, 3 shows the front view of the hand guard of FIG. 1, FIG.

Fig. 4 shows the cross section (section B-B in Fig. 2) by hand protection and adapter, wherein the bipod is indicated, and

Fig. 5 is a plan view of the removed adapter in the oblique view.

In Fig. 1 to 4, a one-piece hand guard 5 is shown made of aluminum, which is pushed from the front over the barrel and the gas removal of a rapid-fire rifle. The grain is not on the barrel, as usual, but the sight is on the hand guard 5 on a Picatinny rail 7. Four Picatinny rails 7 are arranged on the hand guard 5, namely an upper, a lower and two lateral ones. An arrow C in Figs. 1 and 2 denotes the direction forward, i. in the weft direction.

On the lower Picatinny rail 7, an adapter, which is generally designated 1, clamped with Harris bipod. This Harris bipod is well known and therefore not shown for the sake of simplicity; only the upper portion of the part 4 having the bearing surfaces 11 is shown in Fig. 4 in cross section.

The adapter 1 consists of two pivoting parts 2, 3, which can pivot about an axis 13. For this purpose, the pivoting part 2 has three laterally projecting hinge extensions 15, into which three lateral hinge extensions 17 of the pivoting part 3 engage. It is between the middle

Hinge extensions 15 of the pivoting part 2 leave a recess 19, in which a sleeve 21 engages, which is integrally formed on top of a block 23. By the Hinge extensions 15, 17 and through the sleeve 21 extends a through hole 25 in which the axle 13 sits with a light play.

The part of the bore 25 which passes through the sleeve 21 may be slightly smaller than the bore 25 through the extensions 15, 17, so that the sleeve 21 and thus the integrally connected block 23 with a press fit on the axis 13 sit. As a result, an axle head on the one and a spring washer on the other end of the axle 13 is unnecessary.

The block 23 protrudes downwards between the two pivoting parts 2, 3, is approximately square in cross-section and has a transverse bore 27. It is thus identical to the known mounting block for Harris two legs, but differs from this in that it instead of the known mounting device on the top of the sleeve 21 has. This sleeve 21 guarantees, in cooperation with the other parts of the adapter 1, that the transverse bore 27 of the block 23 always has transverse to the weft direction.

A nose 31, on the top of the block 23 and thus the

Sleeve 21 is formed protruding into a transverse groove 33 of the Picatinny rail 7 (generally referred to as "father rail" in the foregoing description). The nose 31 prevents the adapter 1 from being loosened forward or backward relative to the parent rail 7 ,

5 shows a variant in which a recess is left between two hinge extensions 17 of the pivoting part 3, and a helical spring 29 is pushed onto the axis 13. The two ends of the spring 29 are projecting as radially to opposite sides

Leg trained. The legs lie in corresponding notches of the pivoting parts 2, 3, so that the pivoting parts 2, 3 are pivoted apart in a direction which points away from the rail 7.

When placing the Harris-bipod, the knurled screw is first loosened and the pins are hooked at the upper end of the fingers of the bipod (not shown in the drawing) from both sides in the transverse bore 27. Then, the pivoting parts 2, 3 are pivoted apart, as long as this does not happen anyway by the helical spring 29 shown in the embodiment of FIG. 5 and explained. Then the adapter 1 is attached to the bipod from below to the rail 7, wherein the upper, lateral

Flanks of the adapter 1 and the pivoting parts 2, 3 just from below to slide up over the side edges of the rail 7. Then, the knurled screw of the harris bipod is tightened, whereby the block 23 is pulled a little down between the upper parts 4 of the Harris rail, so that the bearing surfaces 11 from below in each case on a mating surface 35 of the pivoting part 2, 3 sit. The pivoting parts 2, 3 are pivoted with its edge upwards so that they overlap the respective side edge of the pivoting part 2, 3 and firmly on this

Create side edge. Elastomer pads on the bearing surfaces 11 can improve the solid connection yet, since they compensate for fine misalignment.

When removing the harris leg, its knurled screw is loosened. Then the two pivoting parts 2, 3 swing apart by the action of gravity or are forced apart by the helical spring 29 (FIG. 5) so that the rail, master rail or Picatinny rail 7 is released and the bipod is simply lowered can be removed. The pins at the ends of the fingers remain in engagement with the transverse bore 27, so that bipod and adapter 1 always stay together.

The removal and attachment of the bipod with adapter 1 is thus much simpler than would be the case without adapter 1.

Only when you want to remove the adapter 1, such as when the bipod is to be used on another rifle with conventional holder and no paternal, you simply pressed together with dissolved bipod, the lower ends of the fingers together. Then you can lift the adapter 1 upwards. This is the same action as removing the bipod from a conventional mount rifle.

The adapter 1 thus does not limit the uses of the bipod in any way, but extends it. In addition, a rifle with parent rail, which requires the adapter 1 remains undamaged, even if the bipod is mounted, while in the conventional holder a block is to be attached, which affects the rifle not only in appearance, but in that it protrudes from the rifle. Its uses without bipod are significantly affected.

In the exemplary embodiment, the hand guard 5 with parent rail and the two pivoting parts 2, 3 are made of aluminum alloy, while the axis 13 is made of steel. The block 23 with sleeve 21 may be made of aluminum or steel. But there are also all sorts of other materials possible, as far as they are equal to the stresses, in particular hard plastic for the pivoting parts 2, 3rd

Claims

claims

An adapter (1) for mounting a device, in particular a harris bipod, on a projecting rail or paternal rail (7), in particular a Weaver or Picatinny rail, a rifle, a crossbow or the like, wherein

- The device has a tie rod for clamping the device on the adapter (1) and at the top bearing surfaces (11),

- The adapter comprises on the parent rail (7) matching nut piece (2, 3), which is able to engage behind the flanks of the parent rail (7),

- The adapter on its underside mating surfaces (35) for resting on the support surfaces (11),

- A device for fixing the nut piece (2, 3) on the parent rail (7) is provided, and

- A block (23) protrudes from the nut piece (2, 3) from the bottom, which is arranged between the counter-surfaces (35) and serves to hook the tie rod.

2. Adapter (1) according to claim 1, characterized in that the underside of the nut piece (2, 3) has the size and shape of a cutout, preferably the front end, the forearm or hand guard of a rifle or the like.

3. Adapter (1) according to any one of claims 1 or 2, characterized in that each of the mating surfaces (35) is integrally formed contiguous.

4. Adapter (1) according to any one of claims 1, characterized in that the nut piece has two parts (2, 3) which are pivotable about a longitudinal, central pivot axis (13), so that when pivoting the side edges of the parent rail ( 7) embrace and so form the means for fixing the adapter (1) on the parent rail (7).

5. Adapter (1) according to claim 4, characterized in that at least at the top of one of the pivotable parts

(2, 3) a projection or a rib for engagement in a transverse groove (33) of the parent rail (7) is formed.

6. Adapter (1) according to any one of claims 1 to 5, characterized in that the block (23) made of metal, preferably made of steel, and protrudes from the underside of the adapter (1).

7. Adapter (1) according to any one of claims 4 to 6, characterized in that the block (23) has on its upper side a longitudinal sleeve (21) which is penetrated by the pivot axis (13).

8. Adapter (1) according to any one of claims 4 to 7, characterized in that the two parts (2, 3) of the adapter (1) by a spring (29) are pressed into a position in which they the parent rail (7 ).

9. adapter (1) according to claim 8, characterized in that the spring is designed as a wire spring (29) which is wound around the pivot axis (13) and from above with each of its legs on one of the parts (2, 3) of the adapter (1) presses.

10. Adapter (1) according to any one of claims 7 to 9, characterized in that the block (23) on the longitudinal sleeve (21) has an upstanding nose (31) for engaging in a transverse groove (33) of the Father rail (7) is determined.