DESC:Technical Field of Invention

The present invention relates to a system and a method for bore sighting by eliminating the need of original firearm.

Background of the Invention

Several bore sighting devices and methods are available for aligning firearm barrels and sights. In practice, it appears that there are difficulties in achieving accurate parallel alignment of axis of lens, camera and barrel. And also there are difficulties in visualization of centre point of the visuals appeared while rotating lens and camera of conventional devices. Existing methods are time consuming and requires skilled people as the perception varies from person to person. As well the conventional devices and methods are complex and expensive.

It is therefore desirable to provide a system and a method of using a bore sighting device for achieving accurate parallel alignment of axis of lens, camera and barrel at the factory level without using original firearm by eliminating conventional devices which is time consuming and involving skilled person.

Brief Summary of the Invention

The present invention recognizes the limitations of the prior art and the need for systems and methods that are able to provide assistance to users in a manner that overcomes these limitations.

It is an object of the present invention to provide a system and method for bore sighting at the factory level without using an original firearm.

According to a first aspect of the present invention, a bore sighting system for bore sighting comprises a housing pipe, an optical lens to transmit light emitted by a target and a camera to capture the image formed by the optical lens.

In accordance with a first aspect of the present invention, the bore sighting system further comprises plurality of locking bushes to lock the bore sighting system in to desired barrel. The system further comprises plurality of sliding wedges to slide over by the locking bushes. The device also comprises a threaded shaft to provide linear movement of a sliding wedge, a tightening knob for fine adjustment of locking bushes in upward or downward position to lock or unlock the whole bore sighting device into the barrel of a firearm. The bore sighting system further comprises plurality of gears to connect the tightening knob and threaded shaft.

In accordance with a first aspect of the present invention, the bore sighting system further comprises the tightening knob is connected to gears and the gears are connected to the threaded shaft to provide linear movement of sliding wedges which are held by the locking bushes.

The sliding wedges are arranged in such a way that the linear movement of the same is converted in to vertical movement of the locking bushes. It is to be observed that the plurality of the said locking bushes move in a synchronous way.

In accordance with a first aspect of the present invention, locking of the device inside the barrel is achieved with parallelism with respect to the centre line of the barrel as six pins of it move synchronously upward leaving no error for mechanical misalignment.

In accordance with a first aspect of the present invention, fine adjustment of locking bushes in upward position to lock the whole bore sighting device into the homogeneous circular pipe is achieved by tightening the knob by rotating.

According to a second aspect of the present invention, a method for bore sighting calibration comprises steps of placing a homogeneous circular housing pipe fixed on a holding fixture having an arrangement to watch a target through its centre axis. The method further comprises a step of arranging two optical viewing apertures, one each mounted at a front and a rear end on top of the circular pipe to view the same centre of the target.

In accordance with a second aspect of the present invention, the method further comprises a step of adjusting the viewing apertures with an adjusting knob in such a way that user should view the same centre mark of the target and a step for removing the caps of the pipe and inserting a bore sighting device.

In accordance with a second aspect of the present invention, the homogeneous circular pipe is characterized to have equal size and shape to the size and shape of the barrel of the fire arm.

In accordance with a second aspect of the present invention, wherein a user can view an image captured by the camera formed by optical lens on a monitor, to correct lateral and vertical adjustments in the bore sight and do the required correction.

In accordance with a second aspect of the present invention, the tightening knob of the threaded shaft is rotated clockwise or anti-clockwise direction for fine adjustment of locking bushes in upward and/or downward positions to lock or unlock the whole bore sighting device into the circular housing pipe or barrel of the firearm.

Brief Description of Drawings

The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate exemplary embodiments and, together with the description, serve to explain the disclosed principles. Some embodiments of the system and/or method in accordance with embodiments of the present subject matter are now described, by way of example only, and with reference to the accompanying figures, in which:

Fig. 1 illustrates a perspective view of the system for accurate parallel alignment of axis of lens, camera and barrel according to the present invention.

Fig. 2 illustrates a side perspective view of bore sighting device according to the present invention.

Fig. 3 illustrates a front perspective view of bore sighting device according to the present invention.

Detailed Description of the Invention

It is to be understood that the present disclosure is not limited in its application to the details of construction and the arrangement of components set forth in the following description. The present disclosure is capable of other embodiments and of being practiced or of being carried out in various ways. Also, it is to be understood that the phraseology and terminology used herein is for the purpose of description and should not be regarded as limiting the invention.

On the contrary, it is intended to cover alternatives, modifications and equivalents. Various modifications to the present invention will be readily apparent to a person skilled in the art, and can be made to the present invention within the spirit and scope of the invention.

In accordance with an exemplary embodiment of the present invention, a bore sighting system for bore sighting comprises a housing pipe, an optical lens to transmit light emitted by a target and a camera to capture the image formed by the optical lens.

In accordance with an exemplary embodiment of the present invention, the bore sighting system further comprises plurality of locking bushes to lock the bore sighting system in to desired barrel. The system further comprises plurality of sliding wedges to slide over by the locking bushes. The device also comprises a threaded shaft to provide a linear movement of sliding wedges, a tightening knob for fine adjustment of locking bushes in upward or downward position to lock or unlock the whole bore sighting device into the barrel of a firearm. The bore sighting system further comprises plurality of gears to connect the tightening knob and threaded shaft.

In accordance with another exemplary embodiment of the present invention, a method for bore sighting calibration comprises steps of placing a homogeneous circular housing pipe fixed on a holding fixture having an arrangement to watch a target through its centre axis. The method further comprises a step of arranging two optical viewing apertures, one each mounted at a front and a rear end on top of the circular pipe to view the centre of the target.

In accordance with another exemplary embodiment of the present invention, the method further comprises a step of adjusting the viewing apertures with an adjusting knob in such a way that user should view the same centre mark of the target and a step for removing the caps of the pipe and inserting a bore sighting device.

Referring to the drawings the present invention illustrates a bore sighting device for achieving accurate parallel alignment of axis of lens, camera and barrel. FIG. 1 illustrates a perspective view (100) of the system for achieving accurate parallel alignment of axis of lens, camera and barrel according to the present invention. The system comprises a homogeneous longitudinal circular housing pipe (102) whose size and shape is equal to the size and shape of the barrel of the desired firearm or battle tank, small arm and other related direct fire weapons which need to be bore sighted. The circular housing pipe (102) has an arrangement to watch the target (110) through the centre axis of the circular housing pipe (102) affixed on the holding fixture (108).

The circular housing pipe (102) is enclosed at both the ends with two caps (104) provided with a small hole at its centre, which are inserted concentrically with the circular housing pipe (102). Two optical viewing apertures (106) mounted at the front and rear ends on the top of the circular housing pipe (102) to view the centre of the target (110) as shown in FIG.1. On the top of the circular housing pipe (102) there are provided a two viewing apertures (106) at both the ends.

Arrange circular housing pipe (102) in front of the target (110) at a certain predetermined distance in such a way that user should be able to view the centre mark of the target (110) through small holes provided on the two caps (104). If the target (110) is clearly viewed from the centre holes of the caps (104) then the target is ideally aligned to the centre axis of the pipe. Then the user should adjust the viewing apertures (106) with adjusting knob (112) in such a way that user should be able to view the same centre mark of the target through viewing apertures (106). To insert the bore sighting device the two caps (104) are removed or opened.

FIG. 2 illustrates a side perspective view (200) of the bore sighting device according to the present invention. The bore sighting device (200) comprises of a housing pipe (202) with two ends a front end and a rear end. The optical lens (206) is fixed at the front end of the circular housing pipe (202) to transmit light emitted by the target to camera (204) fixed at the rear end of the circular housing pipe (202) to capture the image formed by the optical lens (206). A user can view the image on the monitor (not shown in Figures) and adjust the lateral and vertical adjustments in the sight and do the required modifications.

Six locking bushes (212) arranged at front end and rear end of the circular housing pipe (202) and each locking bush slides over the sliding wedge (214). A tightening knob connected to the gears (208) which in turn are connected to the threaded shaft (210) to provide linear movement of sliding wedges (214) which are held by the locking bushes (212), where the tightening knob is as shown in FIG. 3. The tightening knob on the threaded shaft (210) is rotated clockwise or anti-clockwise direction for fine adjustment of locking bushes (212) in upward or downward position to lock or unlock the whole bore sighting device (200) into the circular housing pipe (102) or barrel of the firearm.

FIG. 3 illustrates a front perspective view (300) of bore sighting device according to the present invention. The bore sighting device comprises a tightening knob (302) that can be rotated in clockwise direction for fine adjustment of locking bushes (212) in upward position to lock the whole bore sighting device (300) into the circular housing pipe (102). The locking of the device inside the barrel is achieved with parallelism with respect to the centre line of the barrel as the six pins move synchronously upward leaving no error for mechanical misalignment.

The lens (206) are adjusted by adjusting screws (304) as shown in Fig.3 of the bore sighting device (200) to view the same centre mark of the target (110). A user can view the image captured by the camera in a monitor (not shown).

There is a provision of checking any disturbance in the circular housing pipe (102) while performing the alignment procedure as described using viewing apertures (106), where the user should able to view the same centre mark of the target through viewing apertures (106). If the user is not able to view the same centre mark of the target through viewing apertures (106) then adjust the position of the circular housing pipe (102) until the user is able to view the same centre mark of the target through viewing apertures (106) and repeat the above process to view the centre of the target in the monitor. Once the above procedure is successfully attained the bore sight equipment is factory set or calibrated for further use in real fire arms.

With the system and method of the present invention it is possible to achieve accurate parallel alignment of the axis of lens, camera and barrel at the factory level without using original firearm, and usage of this bore sighting device in the original firearm.

From the foregoing, it is to be observed that numerous variations and modifications may be effected without departing from the spirit and scope of the invention. It is to be understood that no limitation with respect to the specific apparatus illustrated herein is intended or should be inferred. It is, of course, intended to cover by the appended claims all such modifications as fall within the scope of the claims. ,CLAIMS:Claims:
I/We claim
1. A bore sighting system comprises:
a housing pipe;
an optical lens fixed at the front end, to transmit light emitted by a target;
a camera fixed at the rear end, to capture the image formed by the optical lens;
plurality of locking bushes, to lock the bore sighting system in to desired barrel;
plurality of sliding wedges, to slide over by the locking bushes;
a threaded shaft, to provide linear moment of sliding wedges;
a tightening knob, for fine adjustment of locking bushes in upward or downward position to lock or unlock the whole bore sighting device into the barrel of the firearm;
plurality of gears, to connect the tightening knob and threaded shaft.

2. The system according to claim 1, wherein the tightening knob is connected to gears and the gears are connected to the threaded shaft to provide linear movement of sliding wedges which are held by the locking bushes.

3. The system according to claim 1, wherein the locking of the device, inside the barrel is achieved with parallelism with respect to the centre line of the barrel as six pins of it move synchronously upward leaving no error for mechanical misalignment.

4. The system according to claim 1, wherein fine adjustment of locking bushes in upward position to lock the whole bore sighting device into the homogeneous circular pipe is achieved by tightening the knob by rotating.

5. A method for bore sighting calibration, comprises steps of:
placing a homogeneous circular housing pipe fixed on a holding fixture having an arrangement to watch a target through its centre axis;
arranging two optical viewing apertures, one each mounted at a front and a rear end on top of the circular pipe to view the centre of the target;
adjusting the viewing apertures with an adjusting knob in such a way that user should view the same centre mark of the target; and
removing the caps of the pipe and inserting a bore sighting device.

6. The homogeneous circular pipe of the method according to claim 5, wherein the said centre of the target is viewed from the centre holes of the caps to match the target to ideally align to the centre axis of the pipe.

7. The homogeneous circular pipe of the method according to claim 5, characterized to have equal size and shape to the size and shape of the barrel of the fire arm.

8. The method according to claim 5, wherein a user views an image captured by the camera formed by optical lens on a monitor to correct lateral and vertical adjustments in the sight and do the required correction.

9. The method according to claim 5, wherein the tightening knob of the threaded shaft is rotated clockwise or anti-clockwise direction for fine adjustment of locking bushes in upward and/or downward positions to lock or unlock the whole bore sighting device into the circular housing pipe or barrel of the firearm.