DE202014105535U1 - Ball lock with sealing lip for a projectile - Google Patents

Abstract

Pneumatic firing device (10) for shooting a projectile body (2) located in a weapon barrel (1), with at least one locking element (5) which is radially displaceable in the wall (3) of the weapon barrel (1) and which secures the projectile body (2) from one of the projectile bodies The rest position can be displaced into a release position, characterized in that the locking element (5) is a rod-shaped element which is spherical at the end (6) facing the projectile body (2).

Description

The solution relates to a ball lock with sealing lip for a projectile in connection with a gun barrel to shoot or bring this projectile located in a gun barrel or launcher.

A pneumatic launching device of the aforementioned type discloses, for example, the DE 10 2009 039 549 A1 , A range-controlled compressed air weapon is the DE 10 2009 041 094 A1 removable. Also the EP 0 037 870 A1 . US 2005/0188976 A1 or US 2009/0007765 A1 deal with a ballistic device for moving a projectile by means of compressed air.

Another pneumatic launching device is also in the DE 10 2009 058 049 B4 described. The comprises a locking device, which is formed by a pneumatically or hydraulically releasable spring brake. The Fixierspeicherbremse includes as fixing a the bullet body annular comprehensive radially displaceable clamping sleeve with outer cone, which is at least partially surrounded by an axially displaceable clamping sleeve with inner cone. On whose, viewed in the axial direction, first end act a tension spring and on the opposite second end of an annular piston. When pressurizing the annular piston, the clamping bush is displaceable against the force of the tension spring and the clamping bush is disengaged from the projectile body.

The solution is the object of specifying a launching device, which ensures that an axial movement of the projectile within the gun barrel only at a predetermined event, eg. B. at a predetermined pressure, begins, d. h., With an accurate and reproducible exit velocity of the projectile body.

This object is solved by the features of claim 1. Further, particularly advantageous embodiments of the invention disclose the dependent claims.

The invention is based essentially on the idea, similar to DE 10 2008 058 049 B4 at least one radially displaceable locking element to be arranged in the wall of the weapon barrel, which engages from a projectile rest position, in which the locking element engages with its projectile front end positively into a corresponding circumferentially disposed on the projectile recess, in a release position in the the front end of the locking element and the recess of the projectile are disengaged, is displaceable. The lock is complemented by a lip, which has a slightly higher pressure than the chamber pressure and through which the projectile is better sealed.

The locking element is preferably a rod-shaped or pin-shaped element (hereinafter referred to briefly as a rod-shaped element), whose end facing the projectile is designed correspondingly to the positive connection with the recess of the projectile. The projectile facing the end of the rod-shaped element is spherical in shape of a familiar positive / negative expression. The rod-shaped element may be connected on its side facing away from the projectile with the piston of a hydraulic cylinder or with an electric motor drive. The locking element is connected to an actuating device arranged on the weapon barrel, such that the actuating device is displaced from its rest position into its release position in the case of a predefinable gas pressure acting on the rear-side region of the projectile.

In order to avoid that the projectile must be laboriously positioned during loading in order to ensure the positive connection between the projectile and locking element, it has proven to be advantageous if it is arranged at the circumference of the projectile recess is an annular groove whose contour to the projectile-side contour of the locking element is adapted. In one or more such annular groove (s) can then simultaneously engage a plurality of distributed over the circumference of the inner wall of the weapon barrel arranged locking elements.

Proposed is a pneumatic launching device for firing a projectile located in a gun barrel and at least one radially movable in the wall of the gun barrel locking element, which locks the projectile body rest position, in which the locking element with its the projectile body facing the front end form-fitting in a corresponding peripheral side arranged on the projectile body recess, in a release position in which the front end of the at least one locking element and the recess of the projectile body are disengaged, is displaceable, wherein the locking element is a rod-shaped element which is formed on the projectile body end spherical ,

Further details and advantages of the invention will become apparent from the following, explained with reference to a figure embodiment.

The figure shows schematically the rear area of the gun barrel 1 a launcher 10 , in which an ammunition or a projectile body 2 located. This includes a tail on the rear 9 and not shown in detail preferably one of the projectile body 2 push-out bullet tip, for example in the form of a spike.

According to the invention is on the outside of a wall 3 of the barrel 1 a preferably annularly arranged housing 4 fastened, in which at least one, but preferably a plurality, at least two, evenly distributed over the circumference arranged radially displaceable locking elements 5 are located.

At the locking elements 5 each is a rod-shaped element with a spherical end 6 , each on a radially displaceable piston 7 a hydraulic cylinder 8th are arranged. The locking elements 5 are from one the projectile body 2 securing rest position in a release position movable. In the rest position, the locking elements engage 5 with her bullet body 2 facing spherical ends 6 positive fit in the corresponding circumferentially on the projectile body 2 arranged spherical cap-shaped recesses 11 a (shown in the figure). In the release position are the spherical ends 8th the locking elements 5 and the recesses 11 of the projectile body 2 out of engagement.

The hydraulic cylinders 8th and thus also the locking elements 5 be by means of a gun barrel 1 arranged actuating device (not shown) controlled such that the locking elements 5 after reaching a predetermined, on the rear-side area of the projectile body 2 acting gas or air pressure are shifted from its rest position to the release position, so that the projectile body 2 to the mouth of the weapon barrel 1 can move. The lock can be released by a lip 12 , which is part of the projectile body 2 and in the region of the at least one spherical cap-shaped recess 11 is involved. This lip 12 is subjected to the gas or air pressure and puffs up slightly. As a result, the rod-shaped elements from the recesses 11 pressed, the projectile body released. At the same time takes over the lip 12 the sealing of the projectile body 2 during the further transport through the weapon barrel 1 ,

For the operation but can also on the embodiment of DE 10 2009 058 049 B4 which are hereby incorporated by reference in their entirety. An electric motor drive, with the rod-shaped elements of the locking elements 5 is connected, is also possible. In both cases, it may then depend on the specific shape of the lip 12 be waived.

LIST OF REFERENCE NUMBERS

1

barrel

2

Ammunition / projectile body

3

Wall of the weapon barrel

4

casing

5

Locking element, rod-shaped element

6

spherical end

7

piston

8th

hydraulic cylinders

9

tail

10

launcher

11

recess

12

lip

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 102009039549 A1 [0002]
• DE 102009041094 A1 [0002]
• EP 0037870 A1 [0002]
• US 2005/0188976 A1 [0002]
• US 2009/0007765 A1 [0002]
• DE 102009058049 B4 [0003, 0015]
• DE 102008058049 B4 [0006]

Claims (7)

Pneumatic launcher ( 10 ) for firing one in a weapon barrel ( 1 ) projectile body ( 2 ), with at least one in the wall ( 3 ) of the weapon barrel ( 1 ) radially displaceable locking element ( 5 ), which depends on the projectile body ( 2 ) resting position in a release position, characterized in that it is in the locking element ( 5 ) is a rod-shaped element which on the projectile body ( 2 ) facing end ( 6 ) is spherical. Launcher ( 10 ) according to claim 1, characterized in that the rod-shaped element ( 5 ) with a piston ( 7 ) of a hydraulic cylinder ( 8th ) connected is. Launcher ( 10 ) according to claim 1 or 2, characterized in that the locking element ( 5 ) is connected to an actuating device, such that the locking element ( 5 ) at a predeterminable, on the rear-side area of the projectile body ( 2 ) acting gas pressure is shifted from its rest position to its release position. Launcher ( 10 ) according to one of claims 1 to 3, characterized in that the recess ( 11 ) is an annular groove. Launcher ( 10 ) according to one of claims 1 to 3, characterized in that the recess ( 11 ) is spherical cap-shaped. Launcher ( 10 ) according to claim 5, characterized in that the spherical cap-shaped recess ( 11 ) is incorporated in the annular groove. Launcher ( 10 ) according to one of claims 1 to 6, characterized in that in the region of the at least one spherical cap-shaped recess ( 11 ) on the projectile body ( 2 ) a lip ( 12 ) is involved.

Images