EP2339287B1 - Clamping system for accessories on a Picatinny rail - Google Patents

Description

Picatinny rails to MIL-Std. In 1913, in the military-tactical field as a standardized interface for attachment of additional equipment, such as rifle scopes, red dot sights and lamps, prevailed on firearms. But also for attachment of additional equipment to helmets, belts and the like find such rails use. Also in the field of hunting weapons Picatinny rails are installed.

For attachment of additional equipment on Picatinny rails various clamping systems are known. Mounting systems that are rarely removed from the Picatinny rail, clamp by means of clamping jaw and nut, depending on the version by means of clamping jaw and screw. These systems are simple, stable and inexpensive. However, they have the disadvantage that a tool is needed.

Mounting systems, which are often put on and off, as used for example in the military-tactical field, are usually equipped with a lever system.

By doing U.S. Patent 7,493,721 B2 a mounting device is described, which is operated by a lever. A safeguard against unintentional opening of the lever is not available. An operation of the mounting device by a cheaper nut is not described.

By doing U.S. Patent 7,272,904 B2 is described by a lever releasable mounting device for mounting a device in quick detachable connection to a support member.

This mounting device describes a lever with adjustable clamping force. There is no protection against unintentional opening. The lever scrapes with its clamping surface when pressed on the Picatinny rail and can damage it in this way.

In the US application 2006/0207156 A1 There is described a lever operated rail clamp for firearms intended to mount various accessories, such as optical sighting devices, laser sighting devices, target lighting devices, on various areas of a firearm to ensure use of the firearm in a variety of day and night conditions.

In the US patent application 2008/0168696 A1 describes devices and methods for mounting accessories on a firearm. The devices have a rail connection and a quick release device for mounting on a firearm. The connection has at least one mounting rail and a fastener for securely attaching the connection directly to the firearm. The quick release is then mounted on the mounting rail.

In the subject of this patent application, the full clamping force acts depending on the setting without intermediate spring element. The yoke in the clamping system is due to its cylindrical configuration not able to serve as a stop web for receiving large recoil forces, since in the transverse grooves of the Picatinny rail no area but only line system is present.

In the US patent application 2008/0178511 A1 Devices are described according to the preamble of independent claim 1 and method for mounting additional equipment on a firearm.

Stepless adjustment of the lever is not possible. To adjust the clamping force of the clamping lever, the lever with jaw and yoke must be moved against the spring force until the nut is exposed. As a result, unintentional adjustment in the non-Picatinny rail mounted state is possible when the lever with jaw and yoke is displaced against the spring force. In addition, the yoke is not firmly installed in the body. When used on semi-automatic and fully automatic weapons, the device is not only struck forward due to the recoil but also experiences an impulse in the opposite direction due to the fast-forwarding of the shutter. In this way, there may be relative movements between yoke and body. Therefore, damage to the body and the Picatinny rail and concomitant inaccuracies when re-touch can not be excluded.

In the German Offenlegungsschrift 10 2004 008 211 A1 For example, a firearm mounting device with a clamping device, a toggle lever assembly, and two spring assemblies will be described.

The clamping force of the lever is not adjustable. It is generated by a spring assembly, which is placed under bias when closing the lever. The stop is merely flanged and does not reach through the mounting body.

In the US Patent Application 2006/0117636 A1 An arrangement and method is described which makes it possible to attach a coupling device to an auxiliary device and to effectively use it to attach an auxiliary device to a dovetail rail.

The clamping force of the lever is adjustable, but not stepless. To adjust a screw must be dismantled, which includes the risk of loss. A fuse against accidental opening is not described.

The object of the invention is to provide a clamping system for accessories on a Picatinny rail that allows different clamps when using the same body. At the same time, the fixation of the mounting body on the Picatinny rail without interposed spring element and the clamping system have a very high strength.

The object of the invention is achieved by a clamping system for accessories on a Picatinny rail according to independent claim 1, wherein it has at least one of a cross bolt or a transverse bolt accessed base body and the cross pin or the transverse screw has a stop bar, which in on the Picatinny- Rail mounted state is engageable in a groove.

The main body has on its side facing away from the Picatinny rail at least one interface for receiving additional devices.

The body should be made of light weight for reasons of weight. In order to withstand the recoil of very strong calibers, the stop is made of steel and one piece and passes through the body across the Picatinny rail completely.

Base and stop can have a rigid connection. A machined from the body stop ridge would be for manufacturing reasons transverse to the Picatinny rail of too small a width and due to the execution of the body of light metal of too low strength.

In a first variant, the clamping system is characterized in that it has a clamping lever on the transverse bolt for its operation.

The clamping force of the clamping lever is infinitely adjustable. The cross pin takes over the task of kickback claw at the same time.

In a preferred embodiment, the clamping system is characterized in that the basic body can be clamped by means of a clamping element by the clamping lever on the Picatinny rail.

In a particularly preferred embodiment of the invention, the clamping system is characterized in that a transverse bore in the base body is associated with at least one reduction for a screw.

A further particularly preferred embodiment of the invention, the clamping system is characterized in that the cross bolt can be supported with his head on the side surface of the base body and the clamping element by the opening of the transverse bolt is tangible.

Furthermore, a clamping system is particularly preferred, which is characterized in that the cross bolt on its side facing away from the head has an internal thread with an adjusting screw, wherein the adjusting screw can be secured with a thread lock. The thread lock is preferably designed as a plastic insert. However, the thread lock can also be designed as a screw paint or lock screw.

In the clamping system, the clamping element can be pressed by a compression spring, but preferably by two compression springs in the non-mounted on the Picatinny rail state with its sliding surface against the locking surface of the clamping lever in the open position.

In a further particularly preferred embodiment of the invention, the clamping system is characterized in that a hinge pin in a small cylindrical portion, a square and a large cylindrical portion is divided, wherein the small cylindrical portion is smaller than or equal to the key width of the square and the diameter of the large cylindrical portion is greater than the key width of the square in its diameter. The position of the hinge pin across the Picatinny rail is determined by the set on the opposite side of the head adjusting screw.

In a further particularly preferred embodiment of the invention, the clamping system is characterized in that the transverse bolt has a slot in which the square of the hinge pin is guided displaceably.

In a further particularly preferred embodiment of the invention, the clamping system is characterized in that a securing hook passes through the opening and is rotatably mounted in the clamping lever by means of a shaft.

In the clamping system, the transverse bolt may have a lower sliding surface and a sliding surface extending parallel thereto. Further, in the clamping system, the small cylindrical portion of the hinge pin in the small hinge bore of the clamping lever and the large cylindrical portion of the hinge pin can be rotatably supported in the large hinge bore of the clamping lever.

In the clamping system, the hinge pin can be secured by a locking screw against the mounting direction against loss and hit with his heel depending on the mounting direction on the lower sliding surface or the upper sliding surface. Depending on the mounting direction of the hinge pin from below or above, the clamping lever may point forwards or backwards in the direction of the Picatinny rail. The hinge pin can be designed as a cylindrical pin or clamping sleeve and the clamping lever, depending on its mounting direction in the direction of the Picatinny rail forward or backward show. The adjusting screw can act directly on the hinge pin or it can be switched between the adjusting screw and hinge pin a stop bolt.

The shaft can be designed as a cylindrical pin, preferably as a clamping sleeve.

In the mounted on the Picatinny rail state of the safety hook can engage with its extension in the recess of the clamping member and the cam / are encompassed by the hook surface and held by the torsion spring or a compression spring there. Unintentional opening is thus reliably prevented.

The safety hook must be unlocked against the spring force of the torsion spring or a compression spring to transfer the clamping lever in the open position.

The clamping element may have two recesses and two cams, which are arranged at a distance of 180 ° about the central axis of the opening.

In a second variant, the clamping system is characterized in that it has a nut on a transverse screw for its operation.

Both the cross pin and the transverse screw can be fixed by caulking or gluing the body.

In the clamping system for accessories according to the invention can therefore be used when using the same body either a jaw and nut or a clamping element and clamping lever.

Furthermore, the fixing of the mounting body takes place on the Picatinny rail without interposed spring element and thus represents a rigid connection.

The main body has an angular surface and a base surface, which are arranged at an angle β between 0 ° and 90 °, preferably 60 ° to each other.

The main body rests on the surface mounted on the Picatinny rail with its base on the surface and the rigid jaw on the second lower prism face of the Picatinny rail. The base body can not rest with its base surface on the surface in the mounted on the Picatinny rail state on the first and second upper prism surface and the rigid jaw on the second lower prism surface and the body.

In the mounted on the Picatinny rail state, the clamping element can rest with its clamping surface on the first lower prism surface of the Picatinny rail and with its support surface on the Winkelelfäche of the body.

The top of the body serves to accommodate the accessories and is provided with appropriate interfaces, such as clamping rings, holes, Verschraubverbindungen, studs, recording prisms.

Fig. 1

den Grundkörper 1 mit Klemmelement 4 und Klemmhebel 5 in geschlossener Stellung in perspektivischer Darstellung,

Fig. 2

den Grundkörper 1 mit Klemmbacken 2 und Mutter 3 in perspektivischer Darstellung,

Fig. 3

den Grundkörper1 ohne Klemmsystem im Schnitt,

Fig. 4

die Querschraube 8, den Querbolzen 7 und die Picatinny-Schiene 10 in perspektivischer Darstellung,

Fig. 5

den Grundkörper 1 mit Klemmbacke 2 und Mutter 3, montiert auf der Picatinny-Schiene 10 im Schnitt,

Fig. 6

den Grundkörper 1 mit Klemmelement 4 und Klemmhebel 5, montiert auf der Picatinny-Schiene 10 im Schnitt,

Fig. 7

das Klemmelement 4 in perspektivischer Darstellung,

Fig. 8

die Klemmbacke 2 mit der Stützfläche 19a der Klemmfläche 20a und der Bohrung 26,

Fig. 9

den Grundkörper 1 mit Klemmelement 4 und Klemmhebel 5 in der Seitenansicht und angedeuteter zweiter möglicher Stellung des Klemmhebels 5,

Fig. 10

den Grundkörper 1 mit Klemmelement 4 und Klemmhebel 5 in geschlossener Stellung in Ansicht von unten,

Fig. 11

den Grundkörper 1 mit Klemmelement 4 und Klemmhebel 5 in geschlossener Stellung in Ansicht von hinten,

Fig. 12

den Grundkörper 1 mit Klemmelement 4 und Klemmhebel 5 in einer Explosionszeichnung,

Fig. 13

den Grundkörper 1 mit Klemmelement 4 und Klemmhebel 5 in offener Stellung in Ansicht von unten,

Fig. 14

das Klemmelement 4 in perspektivischer Darstellung,

Fig. 15

den Scharnierstift 24 in perspektivischer Darstellung

Fig. 16

den Querbolzen 7 in Ansicht von unten.

The invention will be explained in more detail below with reference to FIGS. Show it

Fig. 1

the base body 1 with clamping element 4 and clamping lever 5 in the closed position in a perspective view,

Fig. 2

the main body 1 with clamping jaws 2 and nut 3 in perspective view,

Fig. 3

the Grundkörper1 without clamping system in section,

Fig. 4

the transverse screw 8, the transverse pin 7 and the Picatinny rail 10 in a perspective view,

Fig. 5

the main body 1 with clamping jaw 2 and nut 3, mounted on the Picatinny rail 10 in section,

Fig. 6

the main body 1 with clamping element 4 and clamping lever 5, mounted on the Picatinny rail 10 in section,

Fig. 7

the clamping element 4 in a perspective view,

Fig. 8

the jaw 2 with the support surface 19a of the clamping surface 20a and the bore 26,

Fig. 9

the main body 1 with clamping element 4 and clamping lever 5 in the side view and indicated second possible position of the clamping lever 5,

Fig. 10

the main body 1 with clamping element 4 and clamping lever 5 in the closed position in a view from below,

Fig. 11

the main body 1 with clamping element 4 and clamping lever 5 in the closed position in rear view,

Fig. 12

the main body 1 with clamping element 4 and clamping lever 5 in an exploded view,

Fig. 13

the main body 1 with clamping element 4 and clamping lever 5 in the open position in a view from below,

Fig. 14

the clamping element 4 in a perspective view,

Fig. 15

the hinge pin 24 in a perspective view

Fig. 16

the cross pin 7 in bottom view.

The Figures 1 and 2 show the two embodiments of the invention, wherein the base body 1 at Fig. 1 with the cross pin 7 and at Fig. 2 is shown with the transverse screw 8. in the cross bolt 7, the adjusting screw 13 can be screwed. The adjusting screw 13 allows a continuous adjustment of the clamping force of the clamping lever 5. The safety hook 6 protrudes through the clamping lever 5. By this, the clamping element 4 is fixed to the Picatinny rail 10.

In the case of the transverse screw 8, the jaw 2 is fixed to the Picatinny rail 10 by the nut 3.

In Fig. 3 the transverse bore 9 can accommodate both the transverse screw 8 and the transverse pin 7. Each base body 1 is provided with at least one transverse bore 9. Each transverse bore 9 is associated with at least one reduction 15 a and / or 15 b, by means of each screw 16 a, 16 b, the transverse screw 8 or the transverse bolt 7 is attached. The main body 1 is shown by way of example with an interface in the form of a half-bolt for attaching a riflescope.

In Fig. 4 are the transverse pin 7 and the transverse screw 8 with at least one female thread 17a, 17b, 17c, 17d provided, which serves for fastening in the base body 1 by means of screws 16a, 16b. The stop web 14a or 14b engages in the assembled state in one of the grooves 18 of the Picatinny rail 10 also shown and absorbs the recoil forces when used as mounting on firearms.

In Fig. 5 the transverse screw 8 for receiving the nut 3 is provided with an external thread 50. The jaw 2 rests with its clamping surface 20a on the first lower prism surface 21 of the Picatinny rail 10 and is supported with its support surface 19a on the angled surface 46 of the base body 1 from. The angular surface 46 and the base 47 are arranged at an angle β between 0 ° and 90 °, preferably 60 °. The head 23a of the transverse screw 8 supports on the side surface 22 of the base body 1 from. The transverse screw 8 passes through the jaw 2 through the bore 26. To clamp the base body 1 on the Picatinny rail 10, the nut 3 is tightened. The base 47 of the main body 1 rests on the surface 55 of the Picatinny rail 10 and the rigid clamping jaw 63 comes to rest on the second lower prism surface 56.

In a further, not shown, embodiment of the invention is in the clamped state of the base body 1 is not with its base 47 on the surface 55 of the Picatinny rail 10. The concern of the body 1 via the rigid jaw 63 on the second lower prism surface 56 and also two more contact surfaces on the first and second upper prism surface 57 and 58 of the Picatinny rail 10. The clamping surface 20a of the jaw 2 and the clamping surface 20b of Clamping elements 4 abut the first lower prism surface 21 of the Picatinny rail 10.

In Fig. 6 is the clamping element 4 with its clamping surface 20b on the first lower prism surface 21 of the Picatinny rail 10 and is supported with its support surface 19b on the Winkelfäche 46 of the body 1 from. The head 23b of the transverse pin 7 is supported on the side surface 22 of the base body 1. By means of the adjusting screw 13, which acts on the square 37 of the hinge pin 24, the clamping force of the clamping lever 5 can be adjusted continuously. If the hinge pin 24 is designed as a cylindrical pin or clamping sleeve, the adjusting screw 13 acts directly on its diameter. In order to prevent deformation in this case due to the line contact, a hardened stop bolt, not shown, may be interposed.

Fig. 7 shows the clamping element 4 with the support surface 19b of the clamping surface 20b, the opening 27 and the recess 12a. The cam 49 a is used for latching with the extension 11 of the safety hook 6.

In Fig. 9 the adjusting screw 13 is secured against rotation with a plastic insert 25. Other types of screw locking, such as security lacquer or a counter screw are also possible.

In Fig. 10 the clamping lever 5 has an eccentric 60 arranged on the small hinge bore 42 and on the large hinge bore 43. The lateral surface 28 of the eccentric 60 presses in this position against the sliding surface 29 of the clamping element 4th

In Fig. 11 the clamping lever 5 was cut in the region of the oblique opening 30. The safety hook 6 engages in this position with its extension 11 into the recess 12a or 12b of the clamping element 4. The cams 49a or 49b are encompassed by the hook surface 48 of the extension 11. The safety hook 6 is rotatably mounted by means of the shaft 31 in the clamping lever 5 and passes through this completely through the opening 30.

In Fig. 12 The second leg 53 of the torsion spring 32 engages in the recess 54 of the securing hook 6 and forces it into the in Fig. 11 shown location. Instead of the torsion spring 32 can be installed between the wall 61 and the outer surface 62 of the securing hook 6, a compression spring, not shown. In order to bring the clamping lever 5 in the open position, the safety hook 6 must be unlocked against the spring force of the torsion spring 32 or the compression spring.

In Fig. 13 is the clamping lever 5 in the open position. At least one compression spring 34a and / or 34b presses the clamping element 4 with its sliding surface 29 against the locking surface 33 of the clamping lever. 5 Fig. 13 shows a preferred embodiment with two compression springs 34a and 34b. The prism surface 21 of the Picatinny rail 10 is released and the base body 1 with clamping system can be removed.

Fig. 14 shows the clamping element 4 with marked center axis 35 of the opening 27 for the transverse pin 7. the recesses 12a and 12b and the cams 49a and 49b are arranged around the central axis 35 at a distance of 180 ° respectively.

In Fig. 15 The hinge pin 24 can be divided into three sections 36, 37 and 38 due to its external shape. The small cylindrical portion 36 is equal to or smaller than the key width of the square 37 with its diameter. The diameter of the large cylindrical portion 38 is larger with its diameter than the key width of the square 37th

Fig. 16 shows the cross pin 7 with the slot 39 and the lower sliding surface 40. Opposite the lower sliding surface 40 is the upper sliding surface 41. In the assembled state, the hinge pin 24 is guided with its square 37 in the slot 39 of the transverse pin 7. Its small cylindrical portion 36 is rotatably mounted in the small hinge bore 42 of the clamping lever 5 and the large cylindrical portion 38 in the large hinge bore 43. The hinge pin 27 is secured against loss by the locking screw 44 against its mounting direction. In the mounting direction, the hinge pin 24 abuts with its shoulder 45 on the lower sliding surface 40 or the upper sliding surface 41. Thus arises depending on the mounting direction of the hinge pin 24 from below or above a pointing in the direction of the Picatinny rail 10 forward or backward clamping lever. 5

LIST OF REFERENCE NUMBERS

1

body

2

jaws

3

mother

4

clamping element

5

clamping lever

6

safety hook

7

cross bolt

8th

transverse screw

9

cross hole

10

Picatinny rail

11

extension

12a, 12b

Recess in the clamping element. 4

13

adjustment

14a, 14b

stop web

15a, 15b

reduction

16a, 16b

screw

17a, 17b, 17c, 17d

inner thread

18

groove

19a, 19b

support surface

20a, 20b

clamping surface

21

first lower prism surface

22

side surface

23a, 23b

head

24

hinge pin

25

thread Locking

26

drilling

27

breakthrough

28

Lateral surface of the eccentric 60

29

Sliding surface of the clamping element 4

30

sloping breakthrough

31

wave

32

torsion spring

33

Rest area

34a, 34b

compression spring

35

central axis

36

small cylindrical section

37

square

38

large cylindrical section

39

Long hole

40

lower sliding surface

41

upper sliding surface

42

small hinge hole

43

big hinge hole

44

locking screw

45

paragraph

46

angle surface

47

Floor space

48

Hook surface of the extension 11

49a, 49b

cam

50

external thread

51

first leg of the torsion spring 32nd

52

Recess for torsion spring 32nd

53

second leg of the torsion spring 32nd

54

Recess in the safety hook 6

55

Surface of the Picatinny Prism

56

second lower prism surface

57

first upper prism surface

58

second upper prism surface

59

inner thread

60

eccentric

61

hike

62

outer surface

63

rigid jaw

Claims (10)

1. Clamping system for accessories on a Picatinny rail (10), wherein the clamping system has

   - at least one base body (1) having at least one transverse bore (9), and

   - at least one transverse bolt (7) or at least one transverse screw (8), wherein

   the transverse bolt (7) or the transverse screw (8) engage through the transverse bore (9) the base body
   and

   - the transverse bolt (7) or the transverse screw (8) has a stop web (14a, 14b) which, in the mounted state on the Picatinny rail (10), can be engaged in a groove (18) of the Picatinny rail,

   characterized in that
   the transverse bolt (7) and the transverse screw (8) are provided with at least one respective internal thread (17a, 17b, 17c, 17d) which serves for fastening in the base body (1) by means of screws (16a, 16b)
   and
   the transverse bore (9) is assigned at least one countersink (15a, 15b) by which, using in each case one of the screws (16a, 16b), the transverse screw (8) or the transverse bolt (7) is fastened to the base body (1).
2. Clamping system according to Claim 1, characterized in that, for its operation, it has a clamping lever (5) on the transverse bolt (7).
3. Clamping system according to Claim 2, characterized in that the base body (1) can be clamped on the Picatinny rail (10) by means of a clamping element (4) by the clamping lever (5).
4. Clamping system according to one of Claims 1-3, characterized in that the transverse bolt (7) can be supported by its head (23b) on the lateral surface (22) of the base body (1) and the clamping element (4) can be engaged by the transverse bolt (7) through an aperture (27).
5. Clamping system according to one of Claims 1-4, characterized in that the transverse bolt (7) has, on its side facing away from the head (23b), an internal thread (59) with an adjusting screw (13).
6. Clamping system according to Claim 5, characterized in that the adjusting screw (13) is secured by a threaded safeguard (25).
7. Clamping system according to one of Claims 1-6, characterized in that a hinge pin (24) is subdivided into a small cylindrical portion (36), a square portion (37) and a large cylindrical portion (38), wherein the portion (36) is in its diameter smaller or equal to the width across flats of the square portion (37) and the diameter of the portion (38) is larger than the width across flats of the square portion (37).
8. Clamping system according to one of Claims 1-7, characterized in that the transverse bolt (7) has an oblong hole (39) in which the square portion (37) of the hinge pin (24) is displaceably guided.
9. Clamping system according to one of Claims 1-8, characterized in that a securing hook (6) engages through an aperture (30) and is mounted so as to be rotatable in the clamping lever (5) by means of a shaft (31).
10. Clamping system according to Claim 1, characterized in that, for its operation, it has a nut (3) on a transverse screw (8).

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