Device for multi-correcting the trajectory

Abstract

Disclosed is an apparatus for multi-correcting a trajectory, the apparatus comprising a trajectory correcting unit in which a polygonal cam comprising a plurality of surfaces different in distance from a rotary center is rotatably installed between a dot sight or an optical signal and a firearm to adjust an angle between an optical axis of the dot sight or optical sight and a gun barrel axis of the firearm, wherein the trajectory correcting unit is installed to be movable in an axis direction, and coaxially provided with two or more polygonal cams to respectively set trajectory correcting angles corresponding to distances in accordance with calibers of a bullet and the kinds of bullet. With this, one dot sight or optical sight can be mounted to firearms using bullets different in the trajectory or firearms different in a caliber from one another, thereby enhancing equipment use efficiency.

What is claimed is: 
     
       1. An apparatus for multi-correcting a trajectory, the apparatus comprising a trajectory correcting unit in which a polygonal cam comprising a plurality of surfaces different in distance from a rotary center is rotatably installed between a dot sight or an optical signal and a firearm to adjust an angle between an optical axis of the dot sight or optical sight and a gun barrel axis of the firearm,
 wherein the trajectory correcting unit is installed to be movable in an axis direction, and coaxially provided with two or more polygonal cams to respectively set trajectory correcting angles corresponding to distances in accordance with calibers of a bullet and the kinds of bullet.   
     
     
       2. The apparatus according to  claim 1 , further comprising
 a gun barrel supporter formed with a through hole, in which the trajectory correcting unit is installed, and fastened to a firearm; and   a base formed with a contact unit to contact one of the two or more polygonal cams, rotatably installed in the gun barrel supporter, and installed with the dot sight or the optical sight.   
     
     
       3. The apparatus according to  claim 2 , wherein the trajectory correcting unit limits an axial moving range by protrusions respectively placed at opposite end parts of an axial moving region and interfering with vicinity of the through hole. 
     
     
       4. The apparatus according to  claim 2 , further comprising a stopper that is coupled to one end part of the opposite end parts of the trajectory correcting unit selectively exposed to an outside of the gun barrel supporter and holds an axial moving position of the trajectory correcting unit. 
     
     
       5. The apparatus according to  claim 4 , wherein the trajectory correcting unit is formed with ring-shaped insertion grooves at opposite end parts, respectively, in which an end part of the stopper is inserted. 
     
     
       6. The apparatus according to  claim 5 , wherein the stopper comprises a first projection formed at one side of an end part of the trajectory correcting unit to be inserted in the ring-shaped insertion groove, and the trajectory correcting unit comprises a second projection formed at one side of an inner circumference of the ring-shaped insertion groove and limiting a rotating radius of the first projection so that a rotary angle of the trajectory correcting unit can be limited. 
     
     
       7. The apparatus according to  claim 1 , wherein in the two or more polygonal cams of the trajectory correcting unit, one surface among the plurality of surfaces is configured to have the same level as a surface of an adjacent polygonal cam. 
     
     
       8. The apparatus according to  claim 2 , wherein the two or more polygonal cams of the trajectory correcting unit, one surface among the plurality of surfaces is configured to have the same level as a surface of an adjacent polygonal cam. 
     
     
       9. The apparatus according to  claim 3 , wherein the two or more polygonal cams of the trajectory correcting unit, one surface among the plurality of surfaces is configured to have the same level as a surface of an adjacent polygonal cam. 
     
     
       10. The apparatus according to  claim 4 , wherein the two or more polygonal cams of the trajectory correcting unit, one surface among the plurality of surfaces is configured to have the same level as a surface of an adjacent polygonal cam. 
     
     
       11. The apparatus according to  claim 5 , wherein the two or more polygonal cams of the trajectory correcting unit, one surface among the plurality of surfaces is configured to have the same level as a surface of an adjacent polygonal cam. 
     
     
       12. The apparatus according to  claim 6 , wherein the two or more polygonal cams of the trajectory correcting unit, one surface among the plurality of surfaces is configured to have the same level as a surface of an adjacent polygonal cam. 
     
     
       13. An apparatus for correcting a trajectory, comprising:
 a base;   a supporter configured to couple to a firearm and distinct from the base;   a spring disposed between the base and the supporter;   a first removable member including a first plurality of surface areas and configured to couple with the base;   a second removable member including a second plurality of surface areas and configured to couple with the base;   a contacting member configured to select an angle between the base and the supporter; and   a pin that couples the base and the supporter, the pin being disposed between the spring and the contacting member with respect to a longitudinal axis of the base, wherein   the contacting member is configured to respectively contact the first plurality of surfaces areas of the first removable member to provide a first set of angle selections when the first removable member is coupled with the base,   the contacting member is configured to respectively contact the second plurality of surfaces areas of the second removable member to provide a second set of angle selections when the second removable member is coupled with the base, and   the first set of angle selections is different than the second set of angle selections.   
     
     
       14. An apparatus for correcting a trajectory, comprising:
 a base;   a supporter configured to couple to a firearm and distinct from the base;   a pin that couples the base and the supporter;   a first removable member including a first plurality of surface areas and configured to couple with the base;   a second removable member including a second plurality of surface areas and configured to couple with the base; and   a contacting member configured to select an angle between the base and the supporter, wherein   the contacting member is configured to respectively contact the first plurality of surfaces areas of the first removable member to provide a first set of angle selections when the first removable member is coupled with the base,   the contacting member is configured to respectively contact the second plurality of surfaces areas of the second removable member to provide a second set of angle selections when the second removable member is coupled with the base,   the first set of angle selections is different than the second set of angle selections,   the base includes a space defined therein, and   the first removable member is configured to be disposed in the space of the base.   
     
     
       15. The apparatus of claim 14, wherein the second removable member is configured to be disposed in the space of the base. 
     
     
       16. The apparatus of claim 13, wherein the first set of angle selections correspond respective distances and a first bullet caliber. 
     
     
       17. The apparatus of claim 16, wherein the second set of angle selections correspond to respective distances and a second bullet caliber different than the first bullet caliber. 
     
     
       18. The apparatus of claim 17, wherein the apparatus is configured to select a bullet caliber based upon whether the contacting member is in contact with the first removable member or the second removable member. 
     
     
       19. The apparatus of claim 13, wherein
 the base is configured to couple to an optical sight, and   the contacting member is configured to select an angle between the optical sight and a barrel axis of the firearm by contacting one of the first plurality of surface areas of the first removable member or one of the second plurality of surface areas of the second removable member.   
     
     
       20. The apparatus according to claim 13, wherein the supporter includes a space defined therein, and the first removable member is configured to be disposed in space of the supporter. 
     
     
       21. The apparatus of claim 20, wherein the second removable member is configured to be disposed in the space of the supporter. 
     
     
       22. The apparatus according to claim 20, wherein base includes the contacting member. 
     
     
       23. The apparatus according to claim 13, wherein the first removable member includes a stopper configured to limit a rotary angle of the first removable member. 
     
     
       24. The apparatus according to claim 23, wherein the stopper includes a protrusion of the first removable member. 
     
     
       25. The apparatus of claim 23, wherein the protrusion is disposed at an end of the first removable member.