DE1234585B - Firearm with V-shaped barrel bed - Google Patents

Description

GERMAN WTWGSSP PATENT OFFICE

EDITORIAL

German class: 72 h-1/04

Number: 1 234 585

File number: F 385131 c / 72 h

J 234 585 filing date: December 10, 1962

Opened on: February 16, 1967

The invention relates to a firearm with guide surfaces arranged in a V-shape on the housing attachable barrel and with an approach to this barrel, the longitudinal inclined surfaces against the housing is pulled down. It aims at new means and improvements to make the barrel detachable to be attached to the housing.

The task to be solved is to ensure a simple assembly that the guarantee ensures that the barrel remains precisely aligned and secured on the weapon housing itself after frequent use without the need for subsequent manual alignment. aside from that should be the application, the removal and thus the exchange of the barrel by a layman and without Tools be possible.

It is already known to pull the barrel down onto its guide surfaces by means of inclined surfaces and to brace. The production of such a design is expensive and the holder by the Inclined surfaces do not meet all requirements in the long run.

In contrast, it is proposed according to the invention, the approach on the barrel with a him in a transverse bore penetrating retaining pin and guided on its two flattened shoulders To insert ends in obliquely forward and downward running internal grooves of the housing, wherein a screw engaging from the housing into the end face of the shoulder moves the barrel forward and pulls the protruding ends of the retaining pin against the upper shoulders of the internal inclined grooves.

The grooves in the side surfaces of the central recess in the weapon housing are expedient arranged at an angle of about 30 ° to the barrel axis and the axis of the screw on the other hand in one about 15 "against the barrel axis.

The advance of the invention consists in a wedging support of the barrel on its bed in the Housing that is simple, strong and secure, and with which the large holding pressure is easy to manufacture Means is added without signs of wear, so that a housing version softer material than steel, e.g. B. aluminum is possible.

The invention is shown schematically in the drawing and on the basis of an embodiment described below. In the drawings shows

F i g. 1 shows a longitudinal section, partly in side view of the barrel, showing the individual parts,

Firearm with a V-shaped barrel bed

Applicant:

Fabrique Nationale d'Armes de Guerre,
Societe Anonyme, Herstal-Lez-Liege (Belgium)

Representative:

Dipl.-Ing. W. Jahnke, patent attorney,
Wolfsburg, Birkenweg 45

Named as inventor:

Bruce Browning, Ogden, Utah (V. St. A.)

Claimed priority:

V. St. v. America December 11, 1961
(158 316)

F i g. 2 a partial longitudinal section with a dash-dotted barrel,

F i g. 3 on a larger scale a cross section according to plane III-III in Fig. 2,

Fig. 4 is a partial front view showing the barrel in the ready position for insertion into the weapon housing shows.

The barrel 10 with the core 11 of a pistol is attached to the weapon housing 12. The weapon case 12 has a handle 14, a trigger 17 and a trigger guard 16. The movable lock 18, which is guided on the weapon housing 12, sits in the extension of the barrel 10. The cartridge chamber 20 final closure 18 is brought forward by the return spring, not shown, and lies down against the rear face 22 of the barrel 10. A fuse 21 engages in a catch 23 on the breech 18 and secures the locking slide like the locking device 25.

The weapon housing 12 has a pair of V-shaped guide surfaces running parallel to the barrel axis 24 on which the fixed barrel from above with its appropriately arranged Longitudinal grooves 27 is placed on its underside.

The guide surfaces 24 consist of perpendicular parallel surfaces 26 and preferably at an angle at 45 ° to them inclined, inwardly facing connection surfaces 28. The grooves 27 have perpendicular Surfaces 30, which are parallel to surfaces 26, and inclined surfaces 32, which extend on the

709 509/69

Claims (2)

support inclined surfaces 28 of the guide surfaces 24. In the front part of the weapon housing 12 there is a recess 34 delimited by lateral parallel vertical walls 36. Two opposing grooves 38 extend in the side walls of the recess 34 at an acute angle to the barrel axis diagonally downwards and form a shoulder 40 with their upper side, which runs at an angle of preferably 30 ° to the barrel axis. The barrel 10 carries downwards to a projection 42 with parallel side walls 44, which has a cylindrical transverse bore 46 into which a cylindrical retaining pin 48 is pressed, the outer ends 50 of which protrude beyond the side walls 44 and into the grooves 38. Flattened shoulders 52 are attached to the ends 50, which bear against the shoulder 40 of the groove in the groove 38 and guide and clamp the holding pin 48 in the grooves 38. The retaining pin 48 is rotatably mounted in the bore 46 of the ao extension 42 so that the surfaces 52 can adjust to the shoulders 40 of the groove 38. The barrel is assembled by moving it out of position over the guides 24 as shown in FIG. 4, is inserted into the wafer housing until the surfaces 52 on the retaining pin 48 enter the grooves 38. Then the barrel 10 is pushed down and forward until it sits firmly on the guide surfaces 24. The barrel 10 on the weapon housing 12 is held in place by a screw 56 with a round head, which extends obliquely upwards through the front face of the weapon housing 12 into a threaded hole in the shoulder 42. The axis of the screw preferably forms an angle of 15 ° with the barrel axis in such a way that it intersects the angle of the axes of the grooves 38. A nylon washer 58 prevents screw 56 from loosening on successive shots. The barrel 10 is pulled onto the guide surfaces 24 of the housing 12 by the screw 56, but even more so by the retaining pin 48 in the downwardly sloping grooves 38. A considerable part of the force exerted on the barrel as a result of the advance of the movable breech , is transmitted to the weapon housing by the friction on the guide surface 32 and only a small part by the bolt 48 and the inclined shoulders 40. Claims: 1. Firearm with a barrel that can be placed on the housing on V-shaped guide surfaces and with an attachment on this barrel which is drawn down along inclined surfaces against the housing, characterized in that the attachment (42) with a cross-hole (46) penetrating retaining pin (48) and guided at its two ends (50), which are provided with flattened shoulders (52), is inserted into inner grooves (38) of the housing that run obliquely forwards and downwards, one of which is inserted from the housing into the end face of the extension (42 ) engaging screw (56 ) pulls the barrel forward and the protruding ends (50) of the retaining pin (48) against the upper shoulders (40) of the inclined internal grooves (38). 2. Firearm according to claim 1, characterized in that the grooves (38) in the side surfaces (36) of the central recess (34) in the weapon housing (12) are arranged at an angle of about 30 ° to the barrel axis and the axis of the Screw (56) on the other hand in such a way of about 15 ° against the barrel axis. Considered publications:
U.S. Patent Nos. 2,887,810, 2,744,448. 1 sheet of drawings 709 509/69 2.67 © Bundesdruckerei Berlin