Housing for a firearm with an exchangeable barrel

Abstract

The present disclosed subject matter relates to a housing for a firearm with an exchangeable barrel, comprising a bushing into which the barrel root of the exchangeable barrel may be inserted in the axial direction. The bushing has a slot in the axial direction and a clamping device for bringing the slot from a starting position into a narrowed position. The bushing is configured to receive the barrel root in a press-fitting manner when the slot is in the starting position and has a spreading device for bringing the slot from the starting position into an expanded position.

Claims

1. A housing for a firearm with an exchangeable barrel which has a barrel root, comprising: a bushing into which the barrel root of the exchangeable barrel may be inserted in an axial direction, wherein the bushing has a slot in the axial direction and a clamping device for bringing the slot from a starting position, in which the slot is uninfluenced by the clamping device, into a narrowed position, wherein the bushing is configured to receive the barrel root in a press-fitting manner when the slot is in the starting position, wherein the bushing has a spreading device for bringing the slot from the starting position into an expanded position, wherein a common actuating element is provided for the clamping device and the spreading device, wherein the bushing has two legs each of which is embodied on one side of the slot, wherein the clamping device is formed by said legs and at least one tensioning screw that is rotatably borne by a screw head of the tensioning screw on one of said legs and that engages with a thread of the tensioning screw in a female thread of the other of said legs, wherein the slot may be brought from the starting position into the narrowed position by tightening the tensioning screw, wherein the spreading device is formed by said legs, the tensioning screw, and an axial bearing that axially fixes the tensioning screw in the aforesaid one of said legs, wherein the slot may be brought from the starting position into the expanded position by loosening the tensioning screw, wherein the axial bearing is formed by a countersunk bore with a circumferential groove and a ring received in the circumferential groove, and wherein the screw head is axially fixed in the countersunk bore by the ring.

2. The housing according to claim 1 wherein the actuating element has two actuating directions, in one of which the slot may be brought from the starting position into the narrowed position, and in the other of which the slot may be brought from the starting position into the expanded position.

3. The housing according to claim 2, wherein the bushing has two legs each of which is embodied on one side of the slot, wherein the clamping device is formed by said legs and at least one tensioning screw that is rotatably borne by a screw head of the tensioning screw on one of said legs and that engages with a thread of the tensioning screw in a female thread of the other of said legs, and wherein the slot may be brought from the starting position into the narrowed position by tightening the tensioning screw.

4. The housing according to claim 3, wherein the spreading device is formed by said legs, the tensioning screw, and an axial bearing that axially fixes the tensioning screw in the aforesaid one of said legs, wherein the slot may be brought from the starting position into the expanded position by loosening the tensioning screw.

5. The housing according to claim 3, wherein the bushing is integral with the housing.

6. The housing according to claim 1, wherein the ring is a locking ring, a snap ring, or a spiral locking ring.

7. The housing according to claim 1, wherein the bushing is integral with the housing.

Description

BRIEF DESCRIPTION OF THE DRAWINGS/FIGURES

(1) The disclosed subject matter shall be described in greater detail in the following using an exemplary embodiment illustrated in the attached drawings.

(2) FIG. 1 is a side view of a segment of an inventive housing for a firearm for receiving a barrel root of an exchangeable barrel; and,

(3) FIG. 2 illustrates a cross-section of the housing from FIG. 1, with barrel root inserted, along the sectional line A-A.

DETAILED DESCRIPTION

(4) The example in FIG. 1 and FIG. 2 illustrates a segment of a housing 1 for a firearm. The housing 1 comprises a bushing 2 in which the barrel root 3 of an exchangeable barrel for the firearm is seated (FIG. 2). To this end, the barrel root 3 is inserted into the bushing 2 in the direction of the longitudinal axis 4 of the firearm, which is simultaneously the longitudinal axis 4 of the exchangeable barrel and the housing 1, and is anchored therein.

(5) In the example in FIG. 2, the barrel root 3 has a circular outer circumference 5 and the bushing 2 has a corresponding, and therefore likewise circular, inner circumference 6. It is understood that bushing 2 and barrel root 3 may alternatively have other shapes corresponding to one another, e.g. a polygonal or oval cross-section, and it is also possible for the barrel root 3 to have a guide lug or the like and for the bushing 3 to have a corresponding groove, or vice versa.

(6) The bushing 2 furthermore has a slot 7 running in the direction of the longitudinal axis 4 and a clamping device 8. Using the clamping device 8, it is possible to bring the slot 7 from its starting position, illustrated in FIG. 2, in which it is not influenced by the clamping device 8, into a narrowed position in which the barrel root 3 is securely anchored in the bushing 2 and thus on or to the housing 1. The bushing 2 is configured such that it receives the barrel root 3 in a press-fitting manner even in the starting position of the slot 7, which position is not influenced by the clamping device 8.

(7) In the example in FIGS. 1 and 2, the clamping device 8 is formed by two legs 9, 10, which are embodied on the bushing 2 on either side of the slot 7, and one or a plurality of tensioning screws 11 (in this case: one tensioning screw). The tensioning screw 11 is rotatably borne by its screw head 12 at the one leg 9 of the bushing 2 and its thread 13 engages in a female thread 14 of the other leg 10 of the bushing 2. The screw head 12 is borne in a countersunk bore 15 of the aforesaid one leg 9; alternatively, the screw head 12 could e.g. simply be supported, axially in the direction of the other leg 10, against the outside 16 of the one leg 9 or in another manner. In the exemplary embodiment in FIG. 2, the slot 7 is brought from its starting position into its narrowed position simply by tightening the tension screw 11.

(8) In order to be able to insert the barrel root 3 axially into the bushing 2, although the bushing 2 is configured for receiving the barrel root 3 in a press-fit, the bushing 2 furthermore has a spreading device 17. The slot 7 may be brought from its starting position into an expanded position, in which the bushing 2 is spread apart, using the spreading device 17.

(9) In the example in FIGS. 1 and 2, the spreading device 17 is formed by the legs 9, 10, the tensioning screw 11, and an axial bearing 18 that axially fixes the tensioning screw 11 in the aforesaid one leg 9 in its two axial directions. In this way, the slot 7 may be brought from its starting position into its expanded position by loosening the tensioning screw 11, i.e., (at least partially) unscrewing the tensioning screw 11 from the aforesaid other leg 10.

(10) In the example depicted, the axial bearing is formed by the countersunk bore 15, a circumferential groove 19 embodied in the countersunk bore 15, and a ring 20 (in this case a locking ring) received in the circumferential groove 19. In this way, the screw head 12 is axially fixed in its axial direction in the countersunk bore 15 and in its other axial direction by the locking ring 20. The axial bearing 18 could be embodied in another manner, e.g. in the one axial direction of the tensioning screw 11 by a pivot lever or sliding bar partially covering the countersunk bore 15 on the outside 16 of the one leg 9 or by a locking ring that is received in the interior of the slot 7 in a groove of the tensioning screw 11, and in the other axial direction of the tensioning screw 11 furthermore by the leg 9 or the countersunk bore 15.

(11) It is understood that a snap ring or a spiral locking ring or the like may be used instead of the locking ring 20 illustrated in the example in FIGS. 1 and 2.

(12) In the example illustrated, the bushing 2 is embodied integral with the housing 1, i.e., as part of the housing 1. Alternatively, the bushing 2 could also be separate from the housing 1 and thus anchored on or in the housing 1.

(13) Furthermore, clamping device 8 and spreading device 17 may be formed in a manner other than by the legs 9, 10, tensioning screw 11, and axial bearing 18. For example, the tensioning device 8 could be, e.g. a lever or cam apparatus, a sliding guide, or a clip spanning the bushing 2. The spreading device 17 could also be embodied as a lever or cam apparatus or sliding guide, and thus independent of the clamping device 8, and be for operating, or it could have at least one actuating element in common with the clamping device 8 e.g. a sliding guide, a lever or cam apparatus, or the aforesaid common tensioning screw 11. The common actuating element in this case optionally has two actuating directions, in one of which the slot 7 is brought from its starting position into its narrowed position and in the other of which the slot 7 is brought from its starting position into its expanded position.

(14) The disclosed subject matter is not limited to the depicted embodiments, but instead encompasses all variants, combinations, and modifications that fall within the scope of the attached claims.