|Publication number||US3521362 A|
|Publication date||Jul 21, 1970|
|Filing date||Jul 25, 1968|
|Priority date||Jul 25, 1968|
|Publication number||US 3521362 A, US 3521362A, US-A-3521362, US3521362 A, US3521362A|
|Inventors||Duplechin Armond J|
|Original Assignee||Duplechin Armond J|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (2), Referenced by (37), Classifications (6)|
|External Links: USPTO, USPTO Assignment, Espacenet|
July 21, 1970 A. J. DUPLECHIN ,5
' ARCHERY SIGHT Filed July 25, 1968 2 Shets-Sheet 1 INVENTOR ARMOND J. DUPLEC IN 335M771; w" 2'32 ATTORNEY y 1970 A. JIDUPLECHIN 3,521,362
ARCHERY SIGHT Filed July 25, 1968 r v 2 Sheets-Sheet INVENTOR ARMOND J. DU PLECHIN I ATTORNEY United States Patent O U.S. CI. 3346 Claims ABSTRACT OF THE DISCLOSURE An archery sight including a vertical base, mounted on the forward face of a bow above the handgrip, a ball sight extending laterally from the base and adjustable therealong, and a sight plate, slidable along the base with the ball sight, and comprising a gradated dial, defining varying target distances, a pointer for the dial, and a pivoting mirror, geared to the pointer and pivotally mounted along its lower base edge so that the tip of an arrow, when the bow is drawn, will be reflected in the mirror precisely along the base line of the mirror thereby enhancing accuracy of the bow.
BACKGROUND OF THE INVENTION The invention rleates generally to the art of bow sights and more particularly presents a solution to the difiicult problem of providing means that will assure that the bow is drawn in precisely the same manner each time an arrow is fired to enhance the accuracy of the bow.
Several bow sights in the prior art are relevant but, significantly, are not directed to this problem. The most pertinent is U.S. Pat. No. 2,001,470, issued to Yngve J. Nyvall, which discloses a collapsible bow and a sight therefor comprising dual mirrors including gradated mirror F which reflects a target from minor G. By squaring the target centrally in mirror F, the target will be precisely struck by the arrow. However, no allowance is made for the disposition of the arrow immediately prior to shootmg.
The bowsight of U.S. Pat. No. 2,642,661, issued to Bert E. Frederickson, is designed in a manner similar to that disclosed in the Nyvall patent, save that a single transparent reflector is used to reflect a rectile 55, and the bow is tilted up or down for distance. Again, no provision is made for checking the position of the arrow.
U.S. Pat. No. 2,400.973, issued to Charles A. Diehr and U.S. Pat. No. 3,120,322, issued to Fred B. Bear discloses a slidable ball sight and a movable transparent sight, respectively Neither patent discusses the problem of proper arrow placement.
The instant invention discloses a bow sight including a ball sight as well as a mirror arrangement which assures that each arrow is drawn to precisely the same point each time an arrow is shot so that bowstring tension is uniform from shot to shot, thereby assuring greater accuracy to the flight of each of a succession of arrows.
SUMMARY OF THE INVENTION The heart of the invention is a pivoting mirror arrow check means in combination with a movable ball sight for a bow which includes a mirror having a bottom lateral edge precisely aligned with the pivot point of the mirror. Regardless of distance, an arrow is drawn so that its tip appears along the line defined by the mirror bottom edge each time the arrow is fired. Pivoting of the mirror is accomplished by a dial mechanism which is keyed to a distance scale, target to bow.
BRIEF DESCRIPTION OF THE DRAWINGS Details of construction and operation according to the prefered embodiment of the invention may be had by ice reference to the following specification and accompanying drawings in which:
FIG. 1 is a'side elevational view of the invention mounted on a bow, which is partially shown;
FIG. 2 is a rear elevational view of the invention, showing the same used in sighting a target and an arrow P;
FIG. 3 is a partial elevational view of the invention, taken from the left side of FIG. 1, and drawn to an enlarged scale;
FIG. 4 is a front, elevational view of the invention as shown in FIG. 3;
FIG. 5 is a front, elevational view of the vertical calibrated base of the invention; and
FIG. 6 is a schematic view of the invention in use, showing lines of sight from arrow to target.
DESCRIPTION OF THE PREFERRED EMBODIMENT Turning now to the drawings wherein parts are indicated by reference character, there is shown a bow 10 including handgrip 12 and upper bow limb 14. The invention or sight 16 is mounted on back 18 of how 10 and includes a mounting base 20 which may be screwed, or otherwise suitably attached, to back 18. A vertical base 22 is secured to mounting base 20, in either a static or sliding (not shown) relationship as desired.
The face of vertical base 22 is adapted to be pencil gradated for varying target distances by the archer. Such gradations are shown in FIG. 5 by reference numeral 24. Gradations for distance depend on such variables as bow size, strength, and length, as well as target environment conditions and physical characteristics of the archer. A sliding sight base 26 includes an ordinary ball sight 28 extending laterally therefrom, above arrowrest 30 (FIG. 2). Base 26 is slid up or down vertical base 22 as test arows are shot until the target is successfully and successively hit when ball sight 28 is lined up with target center 32 (FIG. .2). At that time, a pencil or pen line 24 may be scribed across the face of vertical base 22. If desired, a thumbsorew 33 may be provided, threaded through sight base 26, to lock base 26 firmly on vertical base 22 (FIG. 1). This is repeated each time the target distance is changed.
The remainder of the invention concerns the means for accomplishing consistent arrow placement for each shot. A sight plate 34 extends outwardly from an edge of sight base 26 and includes a series of calibrations 36 scribed about a semicircular forward edge portion 38 thereof, which marks conform to target distances varying from near at the bottom of the scale to far at the upper end thereof. A dial pointer 40 is mounted centrally through plate 34 and includes a thumb screw 42 to adjust the pointer 40. A spur gear 44 is located beneath pointer 40 and is geared to a gear segment 46, which in turn is pivotally mounted on sight plate 34 at 48. Extended laterally from pivot point 48 is an arrow sighting mirror 50, the baseline 52 of which is coincident with the pivot point 48 of gear segment 46.
The operation of this portion of the invention is best indicated by FIGS. 2 and 5. Ball sight 28 is set as hereinbefore indicated. Then pointer 40 is rotated to the proper target distance as indicated on the scale 36. Rotation of pointer 40 will cause rotation of mirror 50 through gear 44 and gear segment 46. Of course, baseline 52 will remain static regardless of target distance, in that it is coincident with mirror pivot point 48. But the mirror must be rotated as target distance changes so that arrow tip 54 will be in full view.
Each time the bow is drawn, once the sight has been properly adjusted, bowstring 56 should be drawn so that arrow tip 54 appears precisely along mirror baseline 52. In this manner, consistent tension of bowstring 56 is assured each time an arrow is shot, thereby enhanc ing accuracy of each shot in a series. The proper dual lines of sight are indicated by FIG. 6; sightline 58 proceeds from the eye through ball sight 28 to the target center, while sightline 60 goes from the eye to mirror 50 and arrow tip 54.
1. In an archery bow including upper and lower bow limbs, a bowstring, an arrow rest, and a handgrip between the limbs, an archery sight comprising:
(a) a sight base secured to the back of a bow;
(b) a ball sight, extending laterally from the sight base;
(c) arrow sight means, including:
(1) a sight plate, extending forwardly from the sight base and having a semicircular forward edge portion;
(2) means defining a calibrated scale about said forward edge portion; defining varying target distances;
(3) a mirror, pivotally mounted on the sight plate rearwardly of the scale along a lateral baseline of said mirror;
(4) means for rotating said mirror according to varying target distances defined by said scale; and
(5) means for vertically adjusting said mirror;
whereby the angle of said mirror with respect to a horizontal plane drawn through said mirror baseline may be adjusted to varying target distances so that a tip of an arrow may be seen on said mirror baseline when a bowstring is fully drawn and the mirror is adjusted angularly in correlation with the vertical adjustment of the mirror.
4 2. The archery sight as recited in claim 1 wherein said sight base comprises:
(a) a mounting block, firmly secured to the bow back; (b) a vertical base member on the block having gradations thereon scribed to varying target distances; and (c) an arrow sight base for said arrow sight means. 3. The archery sight as recited in claim 2 wherein said means for vertically adjusting said mirror comprises means for slidably adjusting said arrow sight base along said vertical base member.
4. The archery sight as recited in claim 1 wherein said means defining a calibrated scale further comprises: (a) a dial pointer, pivotally mounted centrally of said sight plate; and (b) thumb screw means, attached to said pointer, for
rotation thereof. 5. The archery sight as recited in claim 1 wherein said means for rotating said mirror comprises:
(a) a spur gear, mounted centrally of the sight plate; (b) a gear segment, cooperating with the spur gear, and pivotally mounted on the sight plate along an axis coincident with the mirror lateral baseline.
References Cited UNITED STATES PATENTS 3,302,292 2/1967 Akin 3346.4 3,355,809 12/1967 Guyton 3346.4
0 ANTON O. OECHSLE, Primary Examiner W. R. BROWNE, Assistant Examiner US. Cl. X.R. 124-23
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|Citing Patent||Filing date||Publication date||Applicant||Title|
|US3715807 *||Nov 24, 1970||Feb 13, 1973||Heffer F||Archery bow sight|
|US3861051 *||Nov 20, 1972||Jan 21, 1975||Killian Gerald I||Arrow draw check for archery bows|
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|US6892462||Jul 16, 2002||May 17, 2005||Trophy Ridge, Llc||Vertical in-line bow sight|
|US7100292||Jul 26, 2004||Sep 5, 2006||Abbas Ben Afshari||Fiber optic indicator marking for bow sight|
|US7159325||Aug 11, 2003||Jan 9, 2007||Trophy Ridge, Llc||Bow sight with fiber optics|
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|US7603784 *||Mar 13, 2008||Oct 20, 2009||Erhard Rory J||Rotating pin sight|
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|US20040031162 *||Aug 11, 2003||Feb 19, 2004||Trophy Ridge, Llc||Bow sight with fiber optics|
|US20040107587 *||Mar 13, 2003||Jun 10, 2004||Floied Charles R.||Target sight and range finder|
|US20040244211 *||Mar 5, 2004||Dec 9, 2004||Afshari Abbas Ben||Illuminated sight pin|
|US20050138824 *||Apr 23, 2004||Jun 30, 2005||Afshari Abbas B.||Fiber optic sight pin|
|US20050235503 *||Jul 26, 2004||Oct 27, 2005||Afshari Abbas B||Fiber optic indicator marking for bow sight|
|US20060283028 *||Jun 15, 2005||Dec 21, 2006||Afshari Abbas B||Bow sight with angled pins|
|US20070157480 *||Sep 29, 2006||Jul 12, 2007||Trophy Ridge, Llc||Bow sight with fiber optics|
|US20080005914 *||Jul 7, 2006||Jan 10, 2008||Abbas Ben Afshari||Bow sight with sighting aperture|
|US20080115373 *||Jan 29, 2008||May 22, 2008||Bear Archery, Inc.||Bow sight with fiber optics|
|US20080222904 *||Mar 13, 2008||Sep 18, 2008||Erhard Rory J||Rotating pin sight|
|US20100281701 *||Dec 31, 2007||Nov 11, 2010||Abbas Ben Afshari||Sight with enhanced visibility|
|U.S. Classification||33/265, 124/23.1|
|International Classification||F41G1/00, F41G1/467|