Device for mounting an additional device to a firearm
A device for fixing an additional device, such as a scope or laser sighting device, to a firearm free of play and able to accommodate the ever-changing (recoil and spring-back) forces that occur on the engaging mechanism of the fixing device. In addition to a recoil lug contacting a first stop surface of a first groove, a further adjustable stop is provided, engaging a stop surface in a different groove in a direction opposite, along the line fire, to the first stop surface.
1. A device for attaching an additional device to a firearm, with
a rail ( 2 , 10 ), which can be attached to the firearm, and which exhibits multiple grooves ( 7 ) transverse to the direction of fire, each of which grooves having side surfaces serving as stop surfaces, and
a mount assembly ( 1 , 22 , 54 ),
including elements ( 8 ) for holding the additional device ( 9 ) and means ( 12 , 13 ) for releasably clamping the assembly ( 1 , 22 , 54 ) onto the rail ( 2 , 10 ),
including a recoil lug ( 3 ) dimensioned to fit into a first groove ( 7 ) on the mounting assembly ( 1 , 12 , 13 , 22 , 54 ) and rest against a first stop surface of a first groove ( 7 ),
wherein the mount assembly ( 1 , 22 , 54 ) further includes an adjustable stop ( 4 , 19 , 52 ) lying without play against a stop surface ( 50 ) of a further groove ( 7 ) opposite, along the line of fire, to the first stop surface, and
wherein the adjustable stop is a pin ( 52 ) urged by the force of a spring ( 53 ) to rest against the stop surface ( 50 ) of the further groove ( 7 ).
2. The device according to claim 1 , wherein the stop ( 4 , 19 ) is displaceable in a groove ( 15 ) of the mount ( 1 ) with an adjustment element ( 5 , 13 ), and wherein the groove ( 15 ) lies at an acute angle ( 13 ) to the direction of fire.
3. The device according to claim 1 , wherein the stop ( 4 ) is an eccentric shaft which is rotatably mounted on the mount assembly ( 1 , 22 , 54 ).
4. The device according to claim 1 , wherein the mounting assembly is a multi-part assembly ( 1 , 22 , 54 ), and that the recoil lug ( 3 ) is provided in one part ( 1 ) and the stop ( 4 ) is provided in another part ( 22 ).
5. The device according to claim 1 , wherein the end positions of the stop ( 4 , 19 , 52 ) are fixed.
6. The device according to claim 1 , wherein said transverse grooves repeat at regular intervals of 10 mm.
7. The device according to claim 1 , wherein said stop surface ( 50 ) is perpendicular to the direction of fire.
8. The device according to claim 1 , wherein said rail ( 2 , 10 ) is a Picatinny rail.
9. A device for attaching an additional device to a firearm, with
a rail ( 2 , 10 ), which can be attached to the firearm, and which exhibits multiple grooves ( 7 ) transverse to the direction of fire, each of which grooves having side surfaces serving as stop surfaces, and
a mount assembly ( 1 , 22 , 54 ),
including elements ( 8 ) for holding the additional device ( 9 ) and means ( 12 , 13 ) for releasably clamping the assembly ( 1 , 22 , 54 ) onto the rail ( 2 , 10 ),
including a recoil lug ( 3 ) dimensioned to fit into a first groove ( 7 ) on the mounting assembly ( 1 , 12 , 13 , 22 , 54 ) and rest against a first stop surface of a first groove ( 7 ),
wherein the mount assembly ( 1 , 22 , 54 ) further includes an adjustable stop ( 4 , 19 , 52 ) lying without play against a stop surface ( 50 ) of a further groove ( 7 ) opposite, along the line of fire, to the first stop surface,
wherein the stop ( 4 , 19 ) is displaceable in a groove ( 15 ) of the mount ( 1 ) with an adjustment element ( 5 , 13 ) and wherein the groove ( 15 ) lies at an acute angle (β) to the direction of fire, and
wherein the adjusting element is an eccentric clamping lever ( 13 ) for clamping the mount ( 1 ) on the rail ( 2 , 10 ).
10. The device according to claim 9 , wherein, as the adjusting element, an adjusting screw ( 5 ) is provided on the mount ( 1 ), of which the adjustment thread is in a threaded bore of the stop ( 4 , 19 ).
11. The device according to claim 10 , wherein the screw ( 5 ) is secured against displacement in the direction of the groove ( 15 ).
12. A device according to claim 9 , wherein the stop is a pin ( 52 ) which, urged by the force of a spring ( 53 ), rests against the stop surface ( 50 ) of the further groove ( 7 ).
13. A device for attaching an additional device to a firearm, with
a rail ( 2 , 10 ), which can be attached to the firearm, and which exhibits multiple grooves ( 7 ) transverse to the direction of fire, each of which grooves having side surfaces serving as stop surfaces, and
a mount assembly ( 1 , 22 , 54 ),
including elements ( 8 ) for holding the additional device ( 9 ) and means ( 12 , 13 ) for releasably clamping the assembly ( 1 , 22 , 54 ) onto the rail ( 2 , 10 ),
including a recoil lug ( 3 ) dimensioned to fit into a first groove ( 7 ) on the mounting assembly ( 1 , 12 , 13 , 22 , 54 ) and rest against a first stop surface of a first groove ( 7 ),
wherein the mount assembly ( 1 , 22 , 54 ) further includes an adjustable stop ( 4 , 19 , 52 ) lying without play against a stop surface ( 50 ) of a further groove ( 7 ) opposite, along the line of fire, to the first stop surface,
wherein the stop is a pin ( 52 ) urged by the force of a spring ( 53 ) to rest against the stop surface ( 50 ) of the further groove ( 7 ), and
wherein the cylindrical pin ( 52 ) is guided in a bore of the mount ( 54 ), which lies inclined at an acute angle (μ) to the stop surface ( 50 ).