US20100269395A1 - Adjusting device for a shotgun - Google Patents

Adjusting device for a shotgun Download PDF

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Publication number
US20100269395A1
US20100269395A1 US12/670,469 US67046908A US2010269395A1 US 20100269395 A1 US20100269395 A1 US 20100269395A1 US 67046908 A US67046908 A US 67046908A US 2010269395 A1 US2010269395 A1 US 2010269395A1
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Prior art keywords
adjusting device
shotgun
butt
adjusting
aiming
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Abandoned
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US12/670,469
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English (en)
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Torben Iversen
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Individual
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Individual
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41G—WEAPON SIGHTS; AIMING
    • F41G1/00—Sighting devices
    • F41G1/54—Devices for testing or checking ; Tools for adjustment of sights
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41C—SMALLARMS, e.g. PISTOLS, RIFLES; ACCESSORIES THEREFOR
    • F41C23/00—Butts; Butt plates; Stocks
    • F41C23/14—Adjustable stock or stock parts, i.e. adaptable to personal requirements, e.g. length, pitch, cast or drop
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41G—WEAPON SIGHTS; AIMING
    • F41G1/00—Sighting devices
    • F41G1/54—Devices for testing or checking ; Tools for adjustment of sights
    • F41G1/545—Tools for adjustment of sights

Definitions

  • the invention relates to an adjusting device to improve accuracy of fire for shotguns.
  • U.S. Pat. No. 4,976,038 discloses a shotgun sighting system and method. Some problems related to the teaching of this document are that sufficient precision cannot be obtained and that it may be difficult to make the adjustments of the shotgun.
  • an improved precision of shots fired from shotguns may be obtained fast and easily through adjustment of the shotgun according to measures done with an adjusting device such as herein described.
  • the invention relates to a method of improving adjustment of the butt of a shotgun to a specific shooter in order to improve the accuracy of fire comprising the steps of:
  • the pellets from a single shot of an adjusted shotgun will be distributed in a pellet pattern which relative to the aiming direction is distributed typically with 1 ⁇ 5 of the pellets being below the aiming direction and 4 ⁇ 5 of the pellets being above the aiming direction.
  • the adjusting of the adjusting device to align the aiming surfaces is preferably done by sliding it along the rib or by adjusting the height/lateral position of the adjusting device.
  • the target spot is where the rib of the shotgun is pointing whereas the aiming spot is that spot in the shooting pattern marking where the aiming should be towards in order to distribute the pellets satisfyingly around the spot.
  • the target spot and the aiming spot are considered the same, which will not necessarily be the case and most often at least slight deviations will occur.
  • the awareness of the difference between the target spot and the aiming spot is important to observe the improved precision in accordance with the present invention.
  • the deviation between the target spot and an average aiming spot may e.g. vary between different shotgun manufacturers and between different shotguns in a same series.
  • said method further comprises the step of
  • said method further comprises the step of
  • the lateral marking means is a string.
  • the oblong rigid object comprises string fastening means in one end to facilitate fastening of this string.
  • the string fastening means is positioned close to the front bead, when the oblong rigid object is in position on the shotgun, whereby the stretched string will mark a line at least essentially going through the aiming surface of the front bead.
  • said method further comprises the step of
  • said method further comprises the step of
  • said method further comprises the step of
  • a further advantage according to embodiments of the present invention is that the shooter needs not be present at the time of adjustment of the shotgun, in that his cheek distance is all that is needed. This cheek distance can be measured independently of the adjustment procedure and may anyhow result in a very precise adjustment of the butt to the individual user.
  • the invention relates to an adjusting device for adjustment of the butt of a shotgun to a specific shooter in order to improve the accuracy of fire, said adjusting device comprises mounting means for mounting said adjusting device on said shotgun,
  • said adjusting device comprises adjusting means for adjusting the sight track between an aiming surface of said adjusting device and a front bead of said shotgun, characterized in that said adjusting device comprises an oblong rigid object to indicate the sight track during adjustment of the butt to facilitate an easier adjusting process of the butt.
  • said adjusting device comprises an oblong rigid object to indicate the sight track
  • the adjusting process is made much easier.
  • the oblong rigid object ensures that the line of sight is at hand all the time during adjustment of the butt of the shotgun. Hence adjustment e.g. at the arms dealer is facilitated. This should be seen in comparison to prior art, in which no indications of ideal positions are present during adjustment of the butt of the shotgun.
  • the oblong rigid object is referred to as an individual object; however it may also be designated as part of the adjusting device according to embodiments of the invention.
  • said adjusting device comprises holding means for holding said oblong rigid object in place in order to facilitate an easier adjusting process.
  • the oblong rigid object is by any holding means held in place on the shotgun during adjustment of the butt.
  • the holding means may be formed in any conventional manner, such as be provided by a rough surface, adhesive, tape, side walls, a notch etc.
  • said holding means is a notch.
  • the holding means is a notch in the adjusting device in order to facilitate easy attaching/detaching.
  • said holding means comprises a clamp.
  • the holding means comprises a clamp in the adjusting device in order to facilitate easy attaching/detaching.
  • the oblong rigid object is a stick made in a rigid material such as plastic, wood or metal.
  • part of the functionality of the oblong rigid object could be carried out by a string; however a rigid object is preferred.
  • the oblong rigid object is a telescopic stick in order to be sufficiently prolonged during use without losing the stiffness.
  • the oblong rigid object has a length of at least the distance from the front bead to the front part of the butt.
  • the length of the oblong rigid object is suitable for indicating the sight track throughout the distance from the front bead to the back of the butt.
  • said oblong rigid object is at least 50 cm long.
  • one end of the oblong rigid object comprises a magnet in order to fix the oblong rigid object to the front end of the rib.
  • the end of the oblong rigid object will typically by the aid of a magnet be fixed behind and abut the front bead in order to indicate the line of sight.
  • one end of the oblong rigid object comprises a string fastening means to facilitate fastening of a lateral marking means.
  • a lateral marking means such as a string, may be used to facilitate more easy and exact measurement of the lateral distance between the oblong rigid object and the butt of said shotgun, in that the lateral marking means can be used to mark the lateral position of the butt in the same plane as the oblong rigid object.
  • a string fastening means such as a spike, a small dowel, a hook, or any other means capable of fastening a string.
  • the adjusting device comprises a lower element and a changeable element comprising a notch.
  • a number of different elements with varying heights and widths may be used as a changeable element on top of a lower element of the adjusting device.
  • element which suits the required vertical and lateral adjustment the best, can be mounted on the lower element. This mounting can be done in any conventional way, such as by sliding into a groove in the lower element.
  • the adjusting device is detachably mounted on the shotgun.
  • the adjusting device may be mounted and used for the purpose of adjusting the shotgun and then afterwards be detached again before using the shotgun for shooting.
  • the adjusting device may be mounted and used for the purpose of adjusting the shotgun and then be retained on the shotgun during shooting.
  • the adjusting device is removed from the shotgun after adjustment.
  • the aiming surface of the adjusting device will typically be an upwardly pointing surface relative to the normal holding position of a shotgun. In some embodiments of the invention, the aiming surface is an upper surface of the adjusting device.
  • shooter As used herein may be understood shooter, hunter, huntsman or the like.
  • sight track and “line of sight” are both used to indicate a track between points. With the term “sight track” it may however be clearer that an aiming eye does not necessarily need to be a part of the track in order for the term to make sense.
  • said mounting means comprises means for mounting on a rib of said shotgun.
  • the adjusting device is mounted directly on the rib of the shotgun.
  • shotguns are equipped with a rib, some ribs are parallel to the barrels and some ribs are slightly inclining relative to the barrels, however common for all is that the rib is manufactured such that the adjusting devices according to embodiments of the invention may be mounted on the rib.
  • the mounting may be carried out in any conventional way, such as the manufacturing of the adjusting device in a size fitting exactly the rib of the shotgun or maybe manufacturing the adjusting device in a slightly elastic material in order for the adjusting device to grip around the rib or tying a line around the barrels to hold the adjusting device.
  • Some embodiments of mounting means are described more in detail later. It is important to notice that the examples mentioned should be considered solely as illustrative and not as limiting for the scope of the invention.
  • the adjusting device is detachably mounted on the rib.
  • the adjusting device is held onto a rib of said shotgun by at least one magnet.
  • the attaching of the adjusting device is carried out by means of magnets. This ensures that one adjusting device will be able to fit any shotgun regardless of the width of the rib of the shotgun. Moreover magnets facilitate an easy attachment to the rib and adjustment of the adjusting device on the rib can be done simply by sliding the adjusting device along the rib.
  • said adjusting device is held onto a rib of said shotgun by squeezing means.
  • the squeezing means may be a suitable material of which at least a part of the adjusting device is made, i.e. plastic, rubber or metal.
  • said adjusting means comprises raising means for adjusting the position of said aiming surface of said adjusting means relative to a rib of said shotgun.
  • the adjusting means comprises raising means, capable of enlarging the effective height of the aiming surface of the adjusting device above the rib.
  • These raising means may carry out the height adjustment in any conventional manner such as providing lifting arms with teeth and turning a knob connected to a threaded pin, producing lifting arms in a soft material such that they can remain fixed at a certain height or any other way. It is important to notice that the examples mentioned should be considered solely as illustrative and not as limiting for the scope of the invention.
  • the adjusting device comprises raising means comprising a base element and an upper element comprising lifting arms.
  • the base element is mounted on the rib and the upper element is displaceably mounted on the base element through lifting arms fixed on the upper element.
  • said adjusting means comprises sliding means allowing said adjusting device to slide along the barrels of said shotgun.
  • the adjusting device is capable of sliding along the barrels while still being mounted on the shotgun.
  • the sliding may as well and in most embodiments happen along the rib of said shotgun.
  • These sliding means may be provided by manufacturing the adjusting device in a material that does not stick to the rib of the shotgun. It is important to notice that the example mentioned should be considered solely as illustrative and not as limiting for the scope of the invention.
  • said adjusting device comprises azimuthal means for aiding the shooter reaching an improved azimuthal aiming of said shotgun.
  • the azimuthal means comprises one or more pins.
  • the azimuthal means comprises one centre pin positioned perpendicularly to the aiming surface of the adjusting device.
  • the azimuthal means comprises two pins positioned perpendicularly to the aiming surface of the adjusting device.
  • the one or more pins are sideways adjustable.
  • said azimuthal means comprises a notch in the adjusting device.
  • the invention relates to a shotgun comprising an adjusting device according to any of the claims 7 - 29 .
  • a shotgun comprising an adjusting device according to embodiments of the invention is improved in that an improved precision of shots fired from the shotgun may be obtained, either following adjustment of the shotgun by the aid of the adjusting device or by using the retained adjusting device as kind of substitute for a rear sight on the shotgun.
  • shotgun as used herein may be understood shotgun, sporting gun, hunting gun, fowling piece or the like, provided that the gun is a type from which a single shot contains a number of pellets, such as 1-900.
  • the shotgun may be any brand and should not be limited to certain types of shotguns as the adjusting device such as herein described may be used on any known kind of shotguns, with a possible variation in the width of the adjusting device as the only necessary amendment in order to suit the varying widths of ribs on different brands of shotguns.
  • the invention relates to a use of an adjusting device according to any of the claims 7 - 29 on a shotgun.
  • Adjustment of the shotgun is carried out through the use of the adjusting device according to embodiments of the invention on a shotgun.
  • the adjusting device according to embodiments of the invention is designed for use with a shotgun, which may either be during the process of adjustment of the shotgun and/or following an adjustment process.
  • the use of the adjusting device is especially suitable for pellet-firing weapons which do typically not have a rear sight, and individual adjustment for each shooter is therefore important.
  • the invention relates to a method of adjusting the butt of a shotgun to a specific shooter in order to improve the accuracy of fire by way of an adjusting device according to any of the claims 7 - 29 .
  • FIGS. 1 a - 1 k show different embodiments of an adjusting device according to the invention
  • FIGS. 2 a - 2 c show further different embodiments of an adjusting device according to the invention
  • FIG. 3 shows a shotgun according to an embodiment of the invention
  • FIGS. 4 a and 4 b show examples of distributions of pellets resulting from a shot of a shotgun
  • FIGS. 5 and 6 show steps in a method of adjusting a shotgun using an adjusting device according to an embodiment of the invention.
  • Shotguns are especially useful for firing at short ranges and do typically not comprise adjustable sights as an integral part of the gun, because speed at aiming is of higher importance than precision in aiming. This is the case because a typical situation may be a hunter faced with a fast-moving target at a distance of around 20 m, or at least below 35 m. In this situation the spending of time on fixing the sight possibly through both a front and a rear sight would often cause the target to have time to escape.
  • this small difference in aiming and shooting direction may be of crucial importance. For example, if the majority of the pellets are positioned below the aiming direction for the shotgun, a very precise aiming may result in a clean kill of an animal, but aiming at fast-moving targets the aiming is often displaced slightly and in the example here a shot that goes lower than desired may result in a bad result, i.e. wounding of a game is very likely to occur.
  • a standard desired distribution of pellets in a shot fired from a shotgun is 4 ⁇ 5 of the pellets above the aiming direction and 1 ⁇ 5 of the pellets below the aiming direction.
  • such a pattern may be adjusted according to the desires of the individual shooter, which is of no problem as long as the shooter is aware of how the pattern looks and accounts for that when shooting.
  • Shotgun sights differ significantly from the sights used on rifles and other firearms. Since a shotgun fires a pattern of pellets rather than a single slug, speed of aiming and pointing are generally more important than precise accuracy. For example, bird hunting, and trap shooting both demand aiming at comparatively close, fast-moving targets, as opposed to rifle shooting where the target is usually at a longer range and the angular rate of movement is much slower.
  • the sights used on other types of long arms are generally unsuitable for shotguns.
  • conventional iron sights for rifles generally have an open or “peep” rear sight on the receiver and a bead at the muzzle end of the barrel, the goal being to achieve very precise adjustment in both elevation and azimuth.
  • this arrangement requires comparatively slow and deliberate aiming, and moreover the sight picture is comparatively small, so that these types of sights are generally ill-suited for use on shotguns.
  • Telescopic rifle sights can achieve even greater accuracy, but for similar reasons they too are unsuitable for use on shotguns (except for deer hunting and other specialized applications where the gun fires a single slug as opposed to a pattern of pellets).
  • Shotgun sights ordinarily lack a rear sight aperture. Instead, there is usually a rib along the top of the barrel (or between the barrels in the case of a side-by-side), with a small bead being mounted at the forward end of the rib.
  • This arrangement permits extremely fast aiming when firing at close, fast moving targets and due to the closeness of the target, the pattern of pellets ensure that often at least some of the pellets will hit the target as long as the aiming is approximately in the right direction and hence often it is not a big deal whether the aiming direction and the shooting direction is not exactly the same.
  • the shooters have achieved an ideal possibility to improve their accuracy of fire for shots from a shotgun.
  • the adjusting device and a method of adjusting the butt of a shotgun according to a specific shooter is shown and explained through examples here below.
  • FIGS. 1 a - 1 k and 2 a - 2 c Different embodiments of adjusting devices according to embodiments of the invention are shown in FIGS. 1 a - 1 k and 2 a - 2 c .
  • the embodiments shown should not be interpreted as limiting but only indicative on how adjusting devices according to embodiments of the invention may look.
  • FIG. 1 a An embodiment of an adjusting device according to the invention is shown in FIG. 1 a .
  • the adjusting device comprises a horizontal part 11 and two vertical parts 10 , the vertical parts 10 arranged in order to grip around the sides of the rib of the shotgun, and the lower surface of the horizontal part 11 arranged in order to abut the upper surface of the rib of the shotgun.
  • the distance between the vertical parts 10 is indicated in FIG. 1 a with the letter d, the adjusting device may in some embodiments be manufactured with this distance d adjusted to fit the width of the rib of the shotgun.
  • FIG. 1 b Another embodiment of an adjusting device according to the invention is shown in FIG. 1 b .
  • the adjusting device comprises a horizontal part 11 and two vertical parts 12 , the vertical parts 12 being adjusted as compared to the vertical parts 10 of FIG. 1 a .
  • the indicated slight inclination of the inner sides of the vertical parts 12 is indicating that at least the vertical parts 12 of an adjusting device according to an embodiment of the invention may be made in a flexible material, whereby the distance between the two vertical parts 12 may vary and therefore two identical adjusting devices may be used for shotguns with different width of the ribs.
  • the horizontal part 11 may be made in a flexible material, such that the horizontal part 11 may be stretched to be used on different widths of shotguns.
  • FIG. 1 c Yet another embodiment of an adjusting device according to the invention is shown in FIG. 1 c .
  • the adjusting device is split into a horizontal base element 13 with vertical parts 14 and an upper element 15 comprising lifting arms 16 .
  • a knob 17 is mounted on the base element .
  • This embodiment may be carried out in any conventional manner e.g. with the aid of teeth, threaded pins and/or the like.
  • this embodiment may be carried out through the use of suitable choice of material to ease the height handling adjustment.
  • FIG. 1 d Yet a further embodiment of an adjusting device according to the invention is shown in FIG. 1 d . and the same seen from the side in FIG. 1 e .
  • the mounting means is two magnets 18 capable of attaching the adjusting device on top of the rib of a shotgun.
  • the adjusting device of this embodiment comprises a replaceable aiming part 19 , comprising a horizontal part 19 a suitable for acting as an aiming surface and optionally side parts 19 b suitable for ensuring azimuthally precision as described in further details below and holding the stick during adjustment.
  • FIGS. 1 f - 1 k Further embodiments of an adjusting device according to the invention are shown in FIGS. 1 f - 1 k .
  • the mounting means is two magnets 18 capable of attaching the adjusting device on top of the rib of a shotgun, wherein the magnets are placed in a lower element 100 comprising a groove 101 .
  • a number of different changeable elements will according to this embodiment be part of a kit in combination with the lower element 100 . Different widths and heights of this changeable element are within the scope of the invention.
  • FIGS. 1 h and 1 j Two examples of such changeable elements 102 and 105 are shown in FIGS. 1 h and 1 j and the same seen from the side in FIGS. 1 i and 1 k .
  • the changeable elements have bottoms 103 and 106 shaped in order to fit the groove 101 of the lower element 100 .
  • the changeable elements have a notch 104 and 107 , which during the adjustment steps will serve as aiming surface and, upon mounting the stick, as holding means for this.
  • a shooter with a very high cheek distance may find a need for a higher aiming part 19 than a shooter with a normal cheek distance.
  • the use of a replaceable aiming part 19 ensures that any shooter, regardless of the individual cheek distance, will be able to use the adjusting device according to embodiments of the invention.
  • FIGS. 2 a - 2 c show embodiments corresponding to the embodiments in FIGS. 1 a - 1 c , wherein the adjusting device further comprises two pins 20 placed essentially vertically on top of the adjusting device. If retaining the adjusting device on the shotgun during shooting, these pins 20 will help the shooter to have a better indication whether his aiming is azimuthally precise.
  • the pins 20 may be sideways adjustable by any conventional means, whereby any sideways difference between aiming direction and shooting direction may be corrected in the same way as explained herein for the height adjustment.
  • a shooter In a first step the shooter, for whom the shotgun 30 is to be adjusted, takes the shotgun 30 to his shoulder into his natural firing position by which a cheek distance 36 from the aiming eye 35 to the upper side of the butt 31 can be measured as indicated in FIG. 3 .
  • the definition of a cheek distance and how to measure it will be explained more in detail later.
  • a shooter In a natural firing position a shooter will point the barrel 32 in the aiming direction by using the front bead 34 and the rib 33 as aid for aiming.
  • the shotgun is positioned and fixed by fixing means facilitating that the rib is aligned precisely towards a target spot 40 , which is indicated on e.g. a sheet of cardboard 43 .
  • the fixing may be any fixing means known in the art, such as a screw clamp or the like.
  • the precise aligning towards the target spot 40 is carried out by holding the eye in complete alignment with the rib 56 , i.e. holding the eye precisely low enough to not being able to see the upper surface of the rib 56 but being able to see the front bead 51 and make the front bead 51 align exactly with the target spot 40 .
  • the fixed position of the shotgun should be kept throughout the next steps in order to ensure an exact adjustment.
  • a shot is fired from the fixed position towards the target spot 40 from a distance of approximately 20 m.
  • the number of pellets will then be readably distributed around the target spot 40 in a shooting pattern 42 as indicated in FIG. 4 a .
  • the pellets will create a shooting pattern 42 consisting of distinct points; however the majority of the pellets will normally lie within an area as indicated with 42 .
  • the distance of approximately 20 m should not be considered limiting for the invention, but may vary within a normal shooting range.
  • an aiming spot 41 is marked on the sheet.
  • the purpose of the aiming spot 41 is that the shooter can indicate how he would like the shooting pattern 42 to be distributed around a certain aiming spot 41 . Therefore, after adjustment of the shotgun 50 using an adjusting device 52 according to an embodiment of the invention, a shooting pattern from the adjusted shotgun 50 by an aimed shot towards the aiming spot 41 from the shooter will be distributed in the same way as the shooting pattern 42 is distributed around the aiming spot 41 .
  • FIG. 4 b Another example of a shooting pattern 45 and corresponding aiming spot 44 is indicated in FIG. 4 b .
  • a need for both a height and a lateral adjustment of the butt is relevant.
  • the aiming spot 41 relative to the shooting pattern 42 may obviously be set as desired by the individual shooter. As standard, this aiming spot 41 should be placed inside the shooting pattern 42 with approximately 1 ⁇ 5 of the shooting pattern area positioned below the aiming spot and approximately 4 ⁇ 5 of the shooting pattern area positioned above the aiming spot due to an increased tendency of aiming too low rather than too high when shooting with a shotgun towards a fast-moving target.
  • the adjusting device is attached on the rib 56 of the shotgun 50 .
  • shotguns are equipped with a rib 56 along the top of the barrel 57 , the width of which varies from brand to brand, however typically it is between 5 and 15 mm.
  • the adjusting device 52 may be manufactured with a certain distance d as seen in FIG. 1 a in order to fit to the specific brand or it may be manufactured with flexible means as was explained with reference to FIG. 1 b such that a range of rib widths may be covered with the same adjusting device 52 .
  • the adjusting device is attached with e.g. magnets as explained with reference to FIGS. 1 d - 1 g.
  • the adjusting device 52 is adjusted by sliding it along the rib 56 or by adjusting the height of the adjusting device 52 (depending on the specific adjusting device 52 used) until the sight track 54 between the aiming surfaces of the adjusting device 52 , the front bead 51 and the aiming spot 41 is aligned as indicated in FIG. 5 .
  • a suitable changeable element 102 or 105 is selected and mounted on the lower element 100 and then the sliding adjustment is carried out.
  • the changeable element 102 or 105 may be changed during adjustment in case another changeable element 102 or 105 turns out to cover the necessary adjustments in vertical and lateral directions better.
  • a further advantage by using an adjusting device as disclosed in FIGS. 1 f - 1 k is that the required lateral adjustment of the adjusting device may be carried out by adjusting the position of the changeable element 102 or 105 in the groove 101 ; hence the magnets 18 may be maintained in the center of the rib and thereby maintain their firm grip on the rib even through a relatively large lateral adjustment.
  • the same distance as in the third step should be held between the shotgun 50 and the aiming spot 41 in order for the pellets to be distributed and any deviation between shooting direction and aiming direction to be clear.
  • This distance is truncated in FIG. 5 in order to show the relevant parts clearly.
  • this sixth step it is obtained that it is clear from the line between the aiming surface of the adjusting device 52 and the front bead 51 at which height the specific shooter should keep his aiming eye 53 above the butt 58 in order for the shotgun to hit around the aiming spot 41 as desired in the previous step.
  • a seventh step an oblong rigid object 60 , such as a stick, is placed along the aiming surfaces of the front bead 51 and the adjusting device 52 , the stick 60 extends further above the butt 58 of the shotgun following the line of sight 54 found in last step.
  • the stick indicates the height 55 above the butt 58 , in which the aiming eye 53 should be held in order to hit the aiming spot 41 as desired.
  • the vertical distance 55 between the stick and the butt 58 can then be measured and compared to the cheek distance 36 as measured in the first step.
  • the aiming eye 53 is indicated at the height desired in order to obtain an improved accuracy of fire, from which the height 55 is easily read with the use of e.g. the stick 60 .
  • With reference number 61 is indicated the height of the cheek distance above the butt 58 , whereby the difference in the cheek distance 36 between height 61 and the butt 58 and the desired vertical distance 55 is easily seen.
  • a string (not shown) is attached to the end of the stick close to the front bead. This string is stretched along the rib and butt and kept in the same plane as the stick, whereby the necessary lateral adjustment can be read off.
  • the vertical distance 55 is adjusted to match the previously measured cheek distance 36 .
  • any necessary lateral adjustment found in the eighth step is made by laterally adjusting the butt 58 .
  • a particular advantage in using a stick 60 is that after adjustment of the adjusting device 52 , the arms dealer is able to see the line of sight suiting the shotgun to be adjusted, and the arms dealer can then adjust the butt 58 correspondingly without the need for the shooter to be present.
  • the raising or lowering and lateral adjustment of the butt may be carried out by any means capable of doing so.
  • the standard method used for the majority of shotguns will be well-known to the person skilled in the art, i.e. the adjustment of the complete butt relative to the barrels is carried out by applying hot oil to the relevant part of the butt whereby it becomes possible to twist the butt sufficiently to adjust the shotgun as desired.
  • the method of adjusting a shotgun as just described is very advantageous, e.g. in that the majority of steps may be carried out already at manufacturing of the shotgun. That means that shotguns adjusted according to embodiments of the invention at manufacturing may be shipped to arms dealers with a label telling which vertical distance 55 identifies this exact shotgun. A simple measuring of an individual shooter's cheek distance at the arms dealer will then tell whether a shotgun fits directly to the individual shooter or exactly how much the butt should be adjusted.
  • an adjusting device allows the possibility of the individual shooter with a shotgun to find out exactly how the aiming and shooting of his shotgun corresponds and by himself make an adjustment or bring the information to an arms dealer for adjustment.
  • Standard shotguns have no rear sight opening to look through; hence proper elevation of the barrel is typically sought through the shooter keeping his aiming eye closely level with the rib, usually with the cheek held against the upper surface of the butt.
  • the upper surface of the butt of the shotgun is what defines how a shooter will naturally place the shotgun when aiming.
  • this placing of the shotgun of course may be varied, e.g. in order to obtain a better precision as in prior art, there is a clear tendency that each person as a starting point will place the upper surface of the butt in the same position on the cheek or maybe chin unless doing otherwise on purpose. Therefore, as contrary to trying to make small variations in this position as in prior art to search for better precision, it is important to ensure that when a shooter takes his shotgun into his individual natural position, the shooting direction corresponds to the aiming direction.
  • a distance which will be specific for the individual shooter is needed.
  • This so-called cheek distance is found by measuring the distance from the shooter's eye to the upper surface of the butt of the shotgun, when the shooter holds the shotgun in his natural firing position.
  • a shooters natural firing position may be defined as the position wherein it feels natural and comfortable to hold the shotgun for shooting.
  • the mentioned distance is measured perpendicularly to the barrels as indicated in FIG. 3 ; however other references used may still result in improved precision and are therefore within the scope of the invention, such as perpendicularly to the butt or the like.
  • the cheek distance may be different from person to person both due to different shapes of face and body and due to different persons' individual ways to hold a shotgun in a natural firing position.
  • the cheek distance is a constant for the individual person and therefore an excellent parameter to use as starting point for adjusting the shotgun.
  • the adjusting device is provided with azimuthal means.
  • the azimuthal means comprises a single pin centered on the aiming surface of the adjusting device.
  • the azimuthal means comprises a notch in the adjusting device.
  • azimuthal and lateral may both be used to indicate the sideways adjusting and/or aiming of the shotgun.
  • the azimuthal means comprises two pins extending perpendicularly on the adjusting device as seen in FIGS. 2 a - 2 c.
  • the two pins extending perpendicularly on the adjusting device may be adjustable sideways relative to the adjusting device.
  • This problem may be remedied by retaining the adjusting device provided with azimuthal means on the rib of the shotgun, whereby the pin(s) or notch may be used as an indicator on how the present azimuthal adjustment of the aiming is.
  • the aiming eye of the shooter will naturally be held at the proper elevation relative to the rib and front bead when using a shotgun without the need of the shooter himself to correct after placing the shotgun in his natural firing position.

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  • General Engineering & Computer Science (AREA)
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US12/670,469 2007-07-26 2008-07-16 Adjusting device for a shotgun Abandoned US20100269395A1 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DKPA200701096 2007-07-26
DKPA200701096 2007-07-26
DKPA200701421 2007-10-03
DKPA200701421 2007-10-03
PCT/DK2008/000270 WO2009012777A1 (fr) 2007-07-26 2008-07-16 Dispositif de réglage pour un fusil de chasse

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10082364B2 (en) * 2015-11-10 2018-09-25 Lanny Dale Hinson, JR. Shotgun fitter
US11226177B2 (en) * 2020-06-10 2022-01-18 Brett C. Bilbrey Human transported automatic weapon subsystem with aim adjustment and tracking for second firing

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111006545B (zh) * 2020-01-13 2024-09-13 李鸿敏 一种自动瞄准射击的智慧枪械

Citations (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US136159A (en) * 1873-02-25 Improvement in gun-sights
US172465A (en) * 1876-01-18 Improvement in gun-sights
US181530A (en) * 1876-08-29 Improvement in sights for fire-arms
US243553A (en) * 1881-06-28 Albeet hape and alfeed s
US421943A (en) * 1890-02-25 George alban lewes
US433323A (en) * 1890-07-29 Gun-sight
US706390A (en) * 1901-11-05 1902-08-05 Arthur P Collins Range-finder attachment for guns.
US806142A (en) * 1905-03-17 1905-12-05 Gerard P Herrick Rear sight for guns and the like.
US917101A (en) * 1908-08-08 1909-04-06 Alma V Mortimer Gun-sight.
US920137A (en) * 1908-06-11 1909-05-04 John C Hightower Jr Sight for firearms.
US1032628A (en) * 1911-07-12 1912-07-16 Perry B Sherman Adjustable cheek-pad for guns.
US1088362A (en) * 1913-11-20 1914-02-24 John W Perkins Adjustable butt-plate for gun-stocks.
US1237955A (en) * 1917-03-03 1917-08-21 Joseph Henry Price Sight for rifles, pistols, and the like.
US1330002A (en) * 1920-02-03 wales
US1651299A (en) * 1927-01-26 1927-11-29 Roy V Stansel Adjustable gunstock
US2956343A (en) * 1958-09-26 1960-10-18 Daniel H Shaffer Trigger pull length checking gauge for firearms
US3137958A (en) * 1962-10-29 1964-06-23 Browning Ind Inc Adjustable butt stock
US3710496A (en) * 1970-09-08 1973-01-16 Mershon Co Firearm adjustable cheek piece
US4017995A (en) * 1975-03-28 1977-04-19 Deep River Armory, Inc. Range finding sight
US4055016A (en) * 1976-07-28 1977-10-25 Katsenes Philip K Modifiable gun stock
US4122623A (en) * 1977-09-28 1978-10-31 Stice Eldon C Adjustable gun stock
US4589219A (en) * 1984-08-31 1986-05-20 The Coleman Company, Inc. Adjustable cheekpiece for gunstock
US4624056A (en) * 1985-04-03 1986-11-25 Moore Harry E Sight fork for aligning sights on small firearms
US4663877A (en) * 1985-11-25 1987-05-12 Bragg Elmore J Shoulder firearm recoil absorbing mechanism
US4733490A (en) * 1986-10-16 1988-03-29 Mulawski Walter J Alignment-impact indicator for firearms
US4745686A (en) * 1987-01-28 1988-05-24 Willis John L Apparatus for imparting enhanced directional flight to a projectile and the like
US4896446A (en) * 1989-07-10 1990-01-30 G. Squared, Inc. Buttplate and comb assembly for shoulder firearms
US4976038A (en) * 1989-08-07 1990-12-11 Nattrass Floyd C Shotgun sighting system and method
US5031348A (en) * 1990-10-01 1991-07-16 Carey Donald C Gun stock assembly with coordinated comb and recoil
US5235764A (en) * 1991-11-19 1993-08-17 Manifattura Armi Perazzi S.P.A. Butt for rifles with cheekpiece with adjustable position
US5392553A (en) * 1994-01-11 1995-02-28 Carey; Donald C. Gun stock assembly with universally adjustable comb piece
US5410833A (en) * 1993-07-16 1995-05-02 Paterson; Douglas F. Recoil absorbing firearm stock
US5933997A (en) * 1998-08-26 1999-08-10 Browning Adjustable comb apparatus
US6481146B2 (en) * 2000-01-14 2002-11-19 Carrier, Iii Clifford E. Rear sight for a firearm

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0320153D0 (en) * 2003-08-28 2003-10-01 Mcclimmond Thomas An alignment device for a firearm

Patent Citations (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1330002A (en) * 1920-02-03 wales
US172465A (en) * 1876-01-18 Improvement in gun-sights
US181530A (en) * 1876-08-29 Improvement in sights for fire-arms
US243553A (en) * 1881-06-28 Albeet hape and alfeed s
US421943A (en) * 1890-02-25 George alban lewes
US433323A (en) * 1890-07-29 Gun-sight
US136159A (en) * 1873-02-25 Improvement in gun-sights
US706390A (en) * 1901-11-05 1902-08-05 Arthur P Collins Range-finder attachment for guns.
US806142A (en) * 1905-03-17 1905-12-05 Gerard P Herrick Rear sight for guns and the like.
US920137A (en) * 1908-06-11 1909-05-04 John C Hightower Jr Sight for firearms.
US917101A (en) * 1908-08-08 1909-04-06 Alma V Mortimer Gun-sight.
US1032628A (en) * 1911-07-12 1912-07-16 Perry B Sherman Adjustable cheek-pad for guns.
US1088362A (en) * 1913-11-20 1914-02-24 John W Perkins Adjustable butt-plate for gun-stocks.
US1237955A (en) * 1917-03-03 1917-08-21 Joseph Henry Price Sight for rifles, pistols, and the like.
US1651299A (en) * 1927-01-26 1927-11-29 Roy V Stansel Adjustable gunstock
US2956343A (en) * 1958-09-26 1960-10-18 Daniel H Shaffer Trigger pull length checking gauge for firearms
US3137958A (en) * 1962-10-29 1964-06-23 Browning Ind Inc Adjustable butt stock
US3710496A (en) * 1970-09-08 1973-01-16 Mershon Co Firearm adjustable cheek piece
US4017995A (en) * 1975-03-28 1977-04-19 Deep River Armory, Inc. Range finding sight
US4055016A (en) * 1976-07-28 1977-10-25 Katsenes Philip K Modifiable gun stock
US4122623A (en) * 1977-09-28 1978-10-31 Stice Eldon C Adjustable gun stock
US4589219A (en) * 1984-08-31 1986-05-20 The Coleman Company, Inc. Adjustable cheekpiece for gunstock
US4624056A (en) * 1985-04-03 1986-11-25 Moore Harry E Sight fork for aligning sights on small firearms
US4663877A (en) * 1985-11-25 1987-05-12 Bragg Elmore J Shoulder firearm recoil absorbing mechanism
US4733490A (en) * 1986-10-16 1988-03-29 Mulawski Walter J Alignment-impact indicator for firearms
US4745686A (en) * 1987-01-28 1988-05-24 Willis John L Apparatus for imparting enhanced directional flight to a projectile and the like
US4896446A (en) * 1989-07-10 1990-01-30 G. Squared, Inc. Buttplate and comb assembly for shoulder firearms
US4976038A (en) * 1989-08-07 1990-12-11 Nattrass Floyd C Shotgun sighting system and method
US5031348A (en) * 1990-10-01 1991-07-16 Carey Donald C Gun stock assembly with coordinated comb and recoil
US5235764A (en) * 1991-11-19 1993-08-17 Manifattura Armi Perazzi S.P.A. Butt for rifles with cheekpiece with adjustable position
US5410833A (en) * 1993-07-16 1995-05-02 Paterson; Douglas F. Recoil absorbing firearm stock
US5392553A (en) * 1994-01-11 1995-02-28 Carey; Donald C. Gun stock assembly with universally adjustable comb piece
US5933997A (en) * 1998-08-26 1999-08-10 Browning Adjustable comb apparatus
US6481146B2 (en) * 2000-01-14 2002-11-19 Carrier, Iii Clifford E. Rear sight for a firearm

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10082364B2 (en) * 2015-11-10 2018-09-25 Lanny Dale Hinson, JR. Shotgun fitter
US11226177B2 (en) * 2020-06-10 2022-01-18 Brett C. Bilbrey Human transported automatic weapon subsystem with aim adjustment and tracking for second firing

Also Published As

Publication number Publication date
WO2009012777A1 (fr) 2009-01-29
WO2009012777A8 (fr) 2010-03-11
EP2174089A1 (fr) 2010-04-14

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