Assembly of a receiver with a barrel

Abstract

An assembly of a receiver (1) with a barrel (4) wherein the barrel (4) is inserted into a barrel hole (7) in the receiver (1) and is attached in a replaceable manner by means of a clamping connection that comprises a longitudinal slot (2) that longitudinally divides the receiver (1) wall in the insertion location of the barrel (4). In the location of the longitudinal slot (2) at least two transversal screws (3) pass through the receiver (1). In the location of the longitudinal slot (2), a transversal hole (5) extends into the receiver (1) and a transversal pin (10) passes through the transversal hole (5) in such a way that the transversal pin (10) reaches into a corresponding transversal recess (9) in the barrel (4). Perpendicularly to the longitudinal axis of the transversal pin (10) a threaded hole (11) with a connecting screw (12) passes through the transversal pin (10). The connecting screw (12) further passes through a straight-through hole (6) in the receiver (1) and through a stock/frame (13) of the firearm to connect the receiver (1) to the stock/frame (13) of the firearm.

Claims

1. An assembly of a receiver with a barrel, wherein the barrel is inserted into a barrel hole in the receiver and the barrel is attached in a replaceable manner by a clamping connection that comprises a longitudinal slot that longitudinally divides the receiver wall at the insertion location of the barrel and at least two transverse screws configured to pass through the receiver at the longitudinal slot, and a transverse hole extends into the receiver at the longitudinal slot and a transverse pin passes through the transverse hole in such a way that the transverse pin is received in a corresponding transverse recess in the barrel, the transverse pin having a threaded hole extending perpendicular to the longitudinal axis of the transverse pin and a connecting screw received in the threaded hole, wherein the connecting screw further passes through a straight-through hole in the receiver and through a stock/frame of the firearm to connect the receiver to the stock/frame of the firearm.

2. The assembly according to claim 1, characterized in that the transverse pin has a circular cross-section.

3. The assembly according to claim 2, characterized in that the transverse pin has a non-circular cross-section.

4. The assembly according to claim 1, characterized in that the transverse hole comprises a blind hole.

5. The assembly according to claim 1, characterized in that a spring-loaded catch protrudes from the surface of the transverse pin to snap into a corresponding recess in the receiver.

6. The assembly according to claim 1, characterized in that, in the surface of the transverse pin, a guiding groove is created, a stop that is attached to the stock/frame of the firearm is received into the guiding groove.

Description

BRIEF DESCRIPTION OF DRAWINGS

(1) The invention will be described in a more detailed way with reference to particular embodiment examples of the assembly of the receiver with the barrel according to the invention, represented in the attached drawings where individual figures show:

(2) FIG. 1vertical longitudinal section of the assembly of the receiver with the barrel according to the invention, attached to the firearm stock;

(3) FIG. 2view of the receiver from the right side;

(4) FIG. 3vertical cross-section of the receiver;

(5) FIG. 4bottom view of the receiver;

(6) FIG. 5view of the barrel from the right side;

(7) FIG. 6axonometric view of the transversal pin;

(8) FIG. 7an embodiment example with a transversal pin fitted with a spring-loaded catch and a guiding groove with a stop wherein the transversal pin is completely withdrawn;

(9) FIG. 8the embodiment of FIG. 7 wherein the transversal pin is completely inserted.

EXAMPLES OF EMBODIMENTS

(10) The assembly of the receiver 1 with the barrel 4 is shown as attached to the stock 13 of a long firearm in FIG. 1.

(11) The barrel 4 is inserted into the barrel hole 7 in the receiver 1 and is attached in a replaceable manner by means of a clamping connection that comprises of a longitudinal slot 2 that longitudinally divides the wall of the receiver 1 in the Insertion location of the barrel 4. The clamping connection further comprises of three transversal screws 3 that pass through the receiver 1 in the location of the longitudinal slot 2.

(12) In the location of the longitudinal slot 2, a transversal hole 5 extends into the receiver 1, the transversal hole being a blind hole and ending in the location of the slot 2 in the displayed example (see FIG. 3). A transversal pin 10 passes through the transversal hole 5 in such a way that the transversal pin 10 reaches into the corresponding transversal recess 9 in the barrel 4.

(13) In FIG. 3, an intersection 8 of the transversal hole 5 and the opening 7 for the barrel 4 in the receiver 1 is perceivable.

(14) A threaded hole 11 passes through the transversal pin 10 perpendicularly to the longitudinal axis of the transversal pin 10 (see FIGS. 1 a 6), a connecting screw 12 being screwed into the threaded hole, passing at the same time through the straight-through hole 6 in the receiver 1 and through the stock/frame 13 of the firearm to connect the receiver 1 to the stock/frame 13 of the firearm (see FIG. 1).

(15) The fact whether the receiver 1 is connected to the stock 13 or frame 13 of the firearm depends on whether the assembly according to the invention is applied to a long or short firearm.

(16) In the embodiment examples shown, the transversal pin 10 has a circular cross section, but skilled persons will appreciate that the transversal pin 10 may also have a non-circular cross-section, e.g., a rectangular one.

(17) FIGS. 7 and 8 show another embodiment example of the assembly according to the invention where a spring-loaded catch 14 protrudes from the surface of the transversal pin 10 to snap into a corresponding recess in the receiver 1. The spring-loaded catch 14 is a ball that is pushed by a not shown spring in such a way that it partly protrudes over the surface of the transversal pin 10. During the insertion of the transversal pin 10 into the transversal hole 5, the ball is first pushed into the transversal pin 10 against the spring pressure, and subsequently it snaps into a recess in the receiver 1, which is not shown here.

(18) The end positions of the inserted and withdrawn transversal pin 10 are delimited by a stop 15 that is fixed in the stock 13 of the firearm and extends into the guiding groove 16 that is created in the transversal pin 10.

(19) During the replacement of the barrel 4, both to change the calibre, or just to replace a worn barrel 4, no intervention of a specialist gunmaker is necessary.

(20) All that the user needs to do is to release the transversal screws 3 and withdraw the transversal pin 10 so that it should not extend into the transversal recess 9 in the barrel 4, which will cause releasing of the barrel, so the barrel 4 will get free and it can be freely withdrawn from the opening 7 in the receiver 1. After inserting of the new barrel 4, this barrel 4 will then be fixed in an analogous manner.

LIST OF REFERENCE SIGNS

(21) 1 receiver 2 slot 3 transversal screw 4 barrel 5 transversal hole 6 straight-through hole 7 barrel hole 8 intersection of the transversal hole and the barrel hole 9 transversal recess 10 transversal pin 11 threaded hole 12 connecting screw 13 stock/frame of the firearm 14 spring-loaded catch 15 stop 16 guiding groove