Title:
BOW SIGHT
United States Patent 3648376
Abstract:
A sighting device for archery bows consisting of a guide rail mounted at its upper and lower ends in spaced relation to an upper bow section with one end of the guide rail adjustable relative to its spacing from the bow section. Adjustably mounted on the guide rail for up and down movement thereon is a sighting unit including a carriage secured to the guide rail by a clamping action. A sighting member support bar is mounted at one side of the carriage for lateral movement to selected adjusted positions, being supported on the carriage by a guide pin and a control pin. Manually operated means on the carriage connected to the control pin moves the support bar to an adjusted selected position. The support bar has affixed to its top surface a sighting member consisting of a tube with crosshairs on the rear end of a rod, the front end of the rod having a raised ball that is in visual alignment with the intersecting axis of the crosshairs.
US Patent References:
FRONT AND BACK SIGHT FOR A BOW
Alti - January 1970 - 3488853
Bow sight
Hamm - July 1951 - 2562187
FRONT AND BACK SIGHT FOR A BOW
Alti - January 1970 - 3488853
Bow sight
Hamm - July 1951 - 2562187
Application Number:
05/002543
Publication Date:
03/14/1972
Filing Date:
01/13/1970
View Patent Images:
Export Citation:
Primary Class:
International Classes:
F41G1/467; F41G1/00; F41G1/00; F41B5/00
Field of Search:
33/46A
Primary Examiner:
Forman, Leonard
Assistant Examiner:
Stephan, Steven L.
Claims:
What I claim is
1. A bow sight for an archer's bow having a central handgrip section and upper and lower bow sections, comprising:
2. The bow sight of claim 1, including:
3. The bow sight of claim 2, including:
4. The bow sight of claim 3, wherein:
5. The bow sight of claim 4, wherein said rotatable hand manipulated means comprises:
6. The bow sight of claim 5, including:
7. The bow sight of claim 6, wherein said hand held means comprises:
1. A bow sight for an archer's bow having a central handgrip section and upper and lower bow sections, comprising:
2. The bow sight of claim 1, including:
3. The bow sight of claim 2, including:
4. The bow sight of claim 3, wherein:
5. The bow sight of claim 4, wherein said rotatable hand manipulated means comprises:
6. The bow sight of claim 5, including:
7. The bow sight of claim 6, wherein said hand held means comprises:
Description:
This invention relates to sighting devices for use with archery long bows and has for its primary object to provide an improved sight device that is adjustable both lengthwise of the bow as well as laterally for increased or decreased ranges and for the effect of windage.
Another object of this invention is to provide a guide rail mounted in spaced substantially vertical relation on the rear side of the upper bow section on which guide rail the sighting unit of the sight device is adjustable up or down to a selected position.
A further object of the invention provides for adjusting one end of the guide rail to vary its spaced position from the rear side of the upper bow section.
Yet another object of this invention is to provide a sighting unit embodying a carriage supported by the guide rail and adjustable up or down thereon by a manually operable clamping cam.
Still another object of this invention is to provide on the carriage a laterally adjustable sighting member support bar that is movably supported by a guide pin and a control pin both extending horizontally into the body of the carriage, the carriage carrying a manually operable adjusting screw and knob operatively associated with the control pin to effect a selected lateral adjustment of the support bar.
Another object of this invention is to provide a sighting member mounted on the top side of the support bar embodying an elongated rod carrying at its rear end a tubular sight including crosshairs and at its forward end an elevated ball element which will lie in the axial intersection of the crosshairs within the tubular sight.
Further objects of the invention will appear as the description proceeds.
To the accomplishment of the above and related objects, my invention may be embodied in the form illustrated in the accompanying drawings, attention being called to the fact, however, that the drawings are illustrative only, and that change may be made in the specific construction illustrated and described within the scope of the appended claims.
FIG. 1 is a partial side elevational view of an archery bow with the complete sighting device mounted thereon.
FIG. 2 is a plan view of the sighting unit.
FIG. 3 is a detail sectional view taken on line 3--3, FIG. 2.
FIG. 4 is a rear end elevational view of the sighting unit.
FIG. 5 is a detailed cross-sectional view taken on line 5--5, FIG. 4.
Referring now to the drawings in greater detail there is shown the archery bow sight device of the present invention, generally indicated by the reference numeral 10 mounted on the upper bow section 12 adjacent to the handgrip section 14.
The bow sight device is seen to consist of a vertical guide rail 16 formed of a substantially rigid metal strap having its upper end 18 turned 90° to the plane of the rail 16 and having a bolt-receiving opening (not shown) centrally provided therein. An upper bracket 20 having a base 21 and an integral rearwardly extending flat bracket arm 22 is secured to the rear side 23 of the upper bow section 12 by one or more screws 24. The bracket arm is provided with a horizontal slot 26 and the upper end 18 of guide rail 16 is fixedly secured in adjusted position to the bracket arm by the bolt 28 which passes through the opening in upper end 18 and slot 26. A knurled nut or wingnut with a washer element (not shown) acts to securely clamp the upper end 18 to bracket arm 22.
Secured below upper bracket 20 to the lower widened portion 30 of the upper bow section 12 and adjacent to the hand grip section 14 is a lower bracket 32. The lower bracket 32 consists of a base 33 and an integral rearwardly extending cylindrical arm 34 provided with an axial threaded extension 35. The base 33 of lower bracket 32 is secured at a selected point to widened portion 30 by one or more screws 36. Guide rail 16 at its lower end 37 is provided with an opening (not shown) permitting the lower end 37 to seat on the axial threaded extension 35 which extends through the opening therein. The terminal end of the cylindrical arm 35 is formed arcuate as at 38 and a knurled nut 40 provided with a short shank or protuberance correspondingly arcuate at its terminal end as at 41, clamps the lower end 37 of the guide rail 16 to the arm 34, as seen in FIG. 1. It is to be noted that the arcuate ends 38 of arm 34 and 41 of knurled nut 40 will accommodate pivotal movement of the guide rail 16 when the upper end thereof is adjusted along bracket arm 22 to a selected fixed position spaced from the rear side 23 of the upper bow section 12. The bolt receiving opening for bolt 28 at the upper end of the guide rail 16 is of a slightly elongated form to permit adjustment of the upper end of the guide rail along the bracket arm 22. The guide rail 16 has a radial length corresponding to the draw length of the archer's arrow and is a rigid member.
Mounted on the guide rail 16 is a sighting unit 42. The sighting unit 42 consists of a carriage 44 formed as a solid rectangular block 45 provided with a pair of forwardly extending parallel arms 46, 47 coextensive with the sides of the block, as seen in FIGS. 3 and 5. The right side of the carriage block 45, viewing FIG. 2 and FIG. 5, is provided with a lateral extension 48 located adjacent the rear end of the right side opposite arm 47. Provided in the carriage block body 45 is a forward transverse guide pin opening 50 extending completely therethrough. Rearward of pin opening 50 there is provided a transverse control pin opening 52 located axially of extension 48, therebeing a partition wall 53 disposed substantially centrally of extension 48 within pin opening 52. Preferably the portion of pin opening 52 on the other side of partition 53 is of a slightly greater diameter, for a purpose to be hereinafter described. As seen in FIG. 3, pin openings 50, 52 have their axis horizontal and coplanar.
Extending through opening 50 is a guide pin 55 provided with an axial threaded opening 56 to receive a screw 57, see FIG. 5. Fitted in opening 52 is a control pin 60 having an axial threaded opening 61 extending completely therethrough. Corresponding ends 62, 63 respectively of the guide pin 55 and control pin 60 are flat and normal to the axis of the pins. Secured in abutting engagement to the flat ends 62, 63, respectively, of guide pin 55 and control pin 60 is a sight support bar 65 provided with transverse screw receiving openings adapted to register with threaded openings 56, 61. Screw 57 secures the sight support bar to guide pin 55 and screw 67 secures the same to control pin 60, as clearly shown in FIG. 5. It will be noted that pins 55, 60 are slidably axially movable as a unit in their respective openings 50, 52 by virtue of the rigid connection effected by the sight support bar 65. Partition 53 in opening 52 if formed with an axial opening 69 through which a control screw 70 extends and threadedly fitted into threaded opening 61 of the control pin 60. Control screw 70 is integral with a cylindrical bearing 72 that slidably rotates in enlarged diameter portion 54 of opening 52, the boss 72 being in turn integral with a knurled knob 74. Boss 72 is provided with an annular groove 75 into which extends the lower end of a retaining pin 76 threaded fitted on the carriage block extension 48, see FIGS. 2 and 3, for holding the boss 72 against axial movement while permitting rotation thereof. The retaining pin 76 is preferably provided with a handle 77 to turn the same so as to lock the boss 72 against any movement after adjustment has been made. It is thus seen that rotation of knob 74 in one or the other direction will cause control screw 70 to move in or out of threaded opening 61 to impart axial movement to control pin 60 so as to laterally move the sight support bar 65 towards or away from the carriage 44, this lateral movement being insured by the guide pin 55 as is readily apparent.
Disposed between the arms 46, 47 of the carriage 44 is a cam 80 mounted on a shaft 81 provided with a handle 82. The shaft 81 extends through openings 83, 84 provided respectively in arms 46, 47 and is formed centrally with a flattened surface 85. A setscrew 86 in the cam 80 serves to lock the cam to the camshaft, the end of setscrew 86 abutting the flattened surface 85.
Mounted on the sight support bar 65 is a sighting member 90 consisting of a rod 91 having an elevated small ball member 92 vertically spaced from rod 91 at its forward end, as seen in FIG. 1. Mounted rigidly on the rear end of the rod 91 is a tubular sight 93 provided with the crosshairs 94, the sight having the customary lenses (not shown) at each end thereof to protect the crosshairs and if desired to produce a telescopic effect. It will be noted that the ball 92 when looking through the sight 93 will be exactly at the axial center of the sight 93 as indicated by the intersection of the crosshairs 94, as seen in FIG. 4. The rod 91 is held in adjusted clamped relation on the sight bar by a clamping plate 96 and screw 97.
The sighting unit 42 is supported on the guide rail 16 by having the latter extending through the slot 100 defined by the arms 46, 47 and cam 80 and may be adjustably moved up and down thereon and gripped or clamped in selected position by turning the cam 80 which will clamp the carriage 44 to the guide rail 16. The mounting of the sighting unit 42 on the guide rail 16 is such that the sighting member 90 with its rod 91 is horizontal when the bow is held vertical as shown in FIG. 1. The sighting unit 42 is adapted for a quick range change by operating the lever handle 82 to release the gripping action of the cam so as to permit ready adjustment of the sighting unit on the guide rail and still give stability when its position is fixed, therefore eliminating slipping when the bow string is released. The advantage of windage control or side movement is obtained by turning the windage knob 74 thereby moving the sighting bar 65 and its supported sighting member 90 either to the left or right. As hereinabove described the sighting unit assembly rides on guide pin 55 and control pin 60 supported by carriage 44 and is locked in position by retaining pin 76.
The advantage of the bow sight as described above and illustrated would be to hold the bow in the same position each time the arrow is fired. By eliminating twisting and keeping the bow vertical will increase the archer's accuracy.
Another object of this invention is to provide a guide rail mounted in spaced substantially vertical relation on the rear side of the upper bow section on which guide rail the sighting unit of the sight device is adjustable up or down to a selected position.
A further object of the invention provides for adjusting one end of the guide rail to vary its spaced position from the rear side of the upper bow section.
Yet another object of this invention is to provide a sighting unit embodying a carriage supported by the guide rail and adjustable up or down thereon by a manually operable clamping cam.
Still another object of this invention is to provide on the carriage a laterally adjustable sighting member support bar that is movably supported by a guide pin and a control pin both extending horizontally into the body of the carriage, the carriage carrying a manually operable adjusting screw and knob operatively associated with the control pin to effect a selected lateral adjustment of the support bar.
Another object of this invention is to provide a sighting member mounted on the top side of the support bar embodying an elongated rod carrying at its rear end a tubular sight including crosshairs and at its forward end an elevated ball element which will lie in the axial intersection of the crosshairs within the tubular sight.
Further objects of the invention will appear as the description proceeds.
To the accomplishment of the above and related objects, my invention may be embodied in the form illustrated in the accompanying drawings, attention being called to the fact, however, that the drawings are illustrative only, and that change may be made in the specific construction illustrated and described within the scope of the appended claims.
FIG. 1 is a partial side elevational view of an archery bow with the complete sighting device mounted thereon.
FIG. 2 is a plan view of the sighting unit.
FIG. 3 is a detail sectional view taken on line 3--3, FIG. 2.
FIG. 4 is a rear end elevational view of the sighting unit.
FIG. 5 is a detailed cross-sectional view taken on line 5--5, FIG. 4.
Referring now to the drawings in greater detail there is shown the archery bow sight device of the present invention, generally indicated by the reference numeral 10 mounted on the upper bow section 12 adjacent to the handgrip section 14.
The bow sight device is seen to consist of a vertical guide rail 16 formed of a substantially rigid metal strap having its upper end 18 turned 90° to the plane of the rail 16 and having a bolt-receiving opening (not shown) centrally provided therein. An upper bracket 20 having a base 21 and an integral rearwardly extending flat bracket arm 22 is secured to the rear side 23 of the upper bow section 12 by one or more screws 24. The bracket arm is provided with a horizontal slot 26 and the upper end 18 of guide rail 16 is fixedly secured in adjusted position to the bracket arm by the bolt 28 which passes through the opening in upper end 18 and slot 26. A knurled nut or wingnut with a washer element (not shown) acts to securely clamp the upper end 18 to bracket arm 22.
Secured below upper bracket 20 to the lower widened portion 30 of the upper bow section 12 and adjacent to the hand grip section 14 is a lower bracket 32. The lower bracket 32 consists of a base 33 and an integral rearwardly extending cylindrical arm 34 provided with an axial threaded extension 35. The base 33 of lower bracket 32 is secured at a selected point to widened portion 30 by one or more screws 36. Guide rail 16 at its lower end 37 is provided with an opening (not shown) permitting the lower end 37 to seat on the axial threaded extension 35 which extends through the opening therein. The terminal end of the cylindrical arm 35 is formed arcuate as at 38 and a knurled nut 40 provided with a short shank or protuberance correspondingly arcuate at its terminal end as at 41, clamps the lower end 37 of the guide rail 16 to the arm 34, as seen in FIG. 1. It is to be noted that the arcuate ends 38 of arm 34 and 41 of knurled nut 40 will accommodate pivotal movement of the guide rail 16 when the upper end thereof is adjusted along bracket arm 22 to a selected fixed position spaced from the rear side 23 of the upper bow section 12. The bolt receiving opening for bolt 28 at the upper end of the guide rail 16 is of a slightly elongated form to permit adjustment of the upper end of the guide rail along the bracket arm 22. The guide rail 16 has a radial length corresponding to the draw length of the archer's arrow and is a rigid member.
Mounted on the guide rail 16 is a sighting unit 42. The sighting unit 42 consists of a carriage 44 formed as a solid rectangular block 45 provided with a pair of forwardly extending parallel arms 46, 47 coextensive with the sides of the block, as seen in FIGS. 3 and 5. The right side of the carriage block 45, viewing FIG. 2 and FIG. 5, is provided with a lateral extension 48 located adjacent the rear end of the right side opposite arm 47. Provided in the carriage block body 45 is a forward transverse guide pin opening 50 extending completely therethrough. Rearward of pin opening 50 there is provided a transverse control pin opening 52 located axially of extension 48, therebeing a partition wall 53 disposed substantially centrally of extension 48 within pin opening 52. Preferably the portion of pin opening 52 on the other side of partition 53 is of a slightly greater diameter, for a purpose to be hereinafter described. As seen in FIG. 3, pin openings 50, 52 have their axis horizontal and coplanar.
Extending through opening 50 is a guide pin 55 provided with an axial threaded opening 56 to receive a screw 57, see FIG. 5. Fitted in opening 52 is a control pin 60 having an axial threaded opening 61 extending completely therethrough. Corresponding ends 62, 63 respectively of the guide pin 55 and control pin 60 are flat and normal to the axis of the pins. Secured in abutting engagement to the flat ends 62, 63, respectively, of guide pin 55 and control pin 60 is a sight support bar 65 provided with transverse screw receiving openings adapted to register with threaded openings 56, 61. Screw 57 secures the sight support bar to guide pin 55 and screw 67 secures the same to control pin 60, as clearly shown in FIG. 5. It will be noted that pins 55, 60 are slidably axially movable as a unit in their respective openings 50, 52 by virtue of the rigid connection effected by the sight support bar 65. Partition 53 in opening 52 if formed with an axial opening 69 through which a control screw 70 extends and threadedly fitted into threaded opening 61 of the control pin 60. Control screw 70 is integral with a cylindrical bearing 72 that slidably rotates in enlarged diameter portion 54 of opening 52, the boss 72 being in turn integral with a knurled knob 74. Boss 72 is provided with an annular groove 75 into which extends the lower end of a retaining pin 76 threaded fitted on the carriage block extension 48, see FIGS. 2 and 3, for holding the boss 72 against axial movement while permitting rotation thereof. The retaining pin 76 is preferably provided with a handle 77 to turn the same so as to lock the boss 72 against any movement after adjustment has been made. It is thus seen that rotation of knob 74 in one or the other direction will cause control screw 70 to move in or out of threaded opening 61 to impart axial movement to control pin 60 so as to laterally move the sight support bar 65 towards or away from the carriage 44, this lateral movement being insured by the guide pin 55 as is readily apparent.
Disposed between the arms 46, 47 of the carriage 44 is a cam 80 mounted on a shaft 81 provided with a handle 82. The shaft 81 extends through openings 83, 84 provided respectively in arms 46, 47 and is formed centrally with a flattened surface 85. A setscrew 86 in the cam 80 serves to lock the cam to the camshaft, the end of setscrew 86 abutting the flattened surface 85.
Mounted on the sight support bar 65 is a sighting member 90 consisting of a rod 91 having an elevated small ball member 92 vertically spaced from rod 91 at its forward end, as seen in FIG. 1. Mounted rigidly on the rear end of the rod 91 is a tubular sight 93 provided with the crosshairs 94, the sight having the customary lenses (not shown) at each end thereof to protect the crosshairs and if desired to produce a telescopic effect. It will be noted that the ball 92 when looking through the sight 93 will be exactly at the axial center of the sight 93 as indicated by the intersection of the crosshairs 94, as seen in FIG. 4. The rod 91 is held in adjusted clamped relation on the sight bar by a clamping plate 96 and screw 97.
The sighting unit 42 is supported on the guide rail 16 by having the latter extending through the slot 100 defined by the arms 46, 47 and cam 80 and may be adjustably moved up and down thereon and gripped or clamped in selected position by turning the cam 80 which will clamp the carriage 44 to the guide rail 16. The mounting of the sighting unit 42 on the guide rail 16 is such that the sighting member 90 with its rod 91 is horizontal when the bow is held vertical as shown in FIG. 1. The sighting unit 42 is adapted for a quick range change by operating the lever handle 82 to release the gripping action of the cam so as to permit ready adjustment of the sighting unit on the guide rail and still give stability when its position is fixed, therefore eliminating slipping when the bow string is released. The advantage of windage control or side movement is obtained by turning the windage knob 74 thereby moving the sighting bar 65 and its supported sighting member 90 either to the left or right. As hereinabove described the sighting unit assembly rides on guide pin 55 and control pin 60 supported by carriage 44 and is locked in position by retaining pin 76.
The advantage of the bow sight as described above and illustrated would be to hold the bow in the same position each time the arrow is fired. By eliminating twisting and keeping the bow vertical will increase the archer's accuracy.