BACKGROUND OF THE INVENTION 1. Field of Invention
This invention relates to a method and apparatus wherein an archery bowstring mounted peep sight is centrally located between separated bowstring fibers.
2. Description of the Related Art
Prior to the present invention, as forth set in the general terms above and more specifically below, it is known in the archery bowstring mounted peep sight art to employ a single aperture peep sight.
SUMMARY OF THE INVENTION Generally speaking, an embodiment of this invention fulfills these needs by providing an archery peep sight with a spherical sight body, in conjunction with a centrally located hour glass shaped aperture view port.
The above and other features of the present invention, which will become more apparent as the description proceeds, are best understood by considering the following detailed description in conjunction with the accompanying drawings, wherein like characters represent like parts throughout the several views and in which:
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 illustrates an isometric view of a peep sight apparatus fixed in place on a bowstring, according to one embodiment of the present invention.
FIG. 2 illustrates an orthogonal side view of the peep sight apparatus, according to one embodiment of the present invention.
FIG. 3 illustrates an orthogonal front view of the peep sight apparatus, according to one embodiment of the present invention.
FIG. 4 illustrates a cross sectional side view of the peep sight apparatus, according to one embodiment of the present invention.
FIG. 5 illustrates an isometric view of the peep sight apparatus, according to one embodiment of the present invention.
FIG. 6 illustrates a cross sectional, orthogonal view of a peep sight apparatus mounted on a fully drawn bowstring. The apparatus is positioned normal to an archer's eye, according to one embodiment of the present invention.
FIG. 7 illustrates a cross sectional, orthogonal view of a peep sight apparatus mounted on a fully drawn bowstring. The illustration represents a bow possessing a different draw angle than that of FIG. 6, according to one embodiment of the present invention.
FIG. 8 illustrates a cross sectional orthogonal view of a peep sight apparatus mounted on a fully drawn bowstring. The illustration represents a bow possessing a different draw angle than that of FIG. 6 and FIG. 7, according to one embodiment of the present invention.
DETAILED DESCRIPTION OF THE INVENTION Traditionally, most common peep sights are of single piece design, with a single aperture port, and are mounted on the bowstring by means of separating the bow string fibers at the desired location. Most common prior art peep sights, are captured between separated bowstring fibers, thus fixing the device in place. Distinguishing itself from other prior art, the device of the present invention embodies four main features.
First, a primary sighting device is centrally located and fixed between separated bowstring fibers. Second, a sight body wherein the surrounding perimeter of the apparatus is geometrically spherical by design. Third, an aperture opening derived from dual apposing conical bores which form an hour glass shaped aperture view port. Finally, the apparatus is secured in place by means of opposing bowstring receptacle channels.
This design enables the sighting apparatus to maintain correct projected view of the peep sight to an archer, eliminating distortion of the sight geometry with respect to varying compound bow draw angles.
With reference first to FIG. 1, there is illustrated an isometric view of a mounting convention as it relates a spherical peep sight apparatus 1, mounted on a fully drawn bowstring. Apparatus 1 is mounted in place on bowstring 6, by engaging opposing bowstring receptacle channels 3c and 3d (FIG. 3), between separated bowstring fibers 6e and 6f. Apparatus 1 is secured in place along bowstring axial centerline, by means of upper and lower serving wraps 8a and 8b. Eye 7 and sighting vector 9 illustrate a user's line of sight through centrally located aperture view port 4. Aperture view port 4 is comprised of primary conical bore 2a, and secondary conical bore 2b.
With reference to FIG. 2, there is illustrated one orthogonal side view of apparatus 1 and bowstring receptacle channel 3c.
With reference to FIG. 3, there is illustrated one orthogonal front view of apparatus 1, bowstring receptacle channel 3c, and 3d, primary conical bore 2a, and centrally located aperture view port 4.
With reference to FIG. 4, there is illustrated one orthogonal, left side, cross section view of apparatus 1 and primary and secondary conical bores 2a and 2b converging and centered within spherical peep sight apparatus 1. With reference to the FIG. 4, there is shown cross hatching delineating section boundary 5, conical bore 2a and 2b.
With reference to FIG. 5, there is illustrated one isometric view of spherical peep sight apparatus 1 and primary and secondary conical bores 2a and 2b converging and centered within apparatus 1. With reference to FIG. 5, there is shown centrally located aperture view port 4 through spherical peep sight apparatus 1.
With reference to FIG. 6, there is illustrated one orthogonal cross section view of a mounting convention as it relates to the spherical peep sight apparatus 1, mounted on a fully drawn bowstring, as mentioned above in FIG. 1. FIG. 6 represents one embodiment of a draw angle variation wherein apparatus 1 is in a neutral position with respect to eye 7 and bowstring 6 is centered between draw angle indicators 12k and 12l. Projection lines 10g and 10h illustrate the true diameter of spherical peep sight apparatus 1, as projected towards eye 7. Projection lines 11i and 11j illustrate the true diameter of the aperture port, projected silhouette towards eye 7.
With reference to FIG. 7, there is illustrated one orthogonal cross section view of a mounting convention as it relates to the spherical peep sight apparatus 1, mounted on a fully drawn bowstring, as mentioned above in FIG. 1. FIG. 7 represents another embodiment of a draw angle variation, wherein apparatus 1 is rotated off neutral position with respect to eye 7, and bowstring 6 is positioned at draw angle indicator 12k. Projection lines 10g and 10h illustrate the diameter of spherical peep sight apparatus 1, as projected towards eye 7. As illustrated in FIG. 7, projection lines 10g and 10h provide a true projection of apparatus 1 presented to eye 7, which are undistinguishable geometrically from FIG. 6 projection lines 10g and 10h. Projection lines 11i and 11j illustrate the diameter of the aperture port, projected silhouette towards eye 7. As illustrated in FIG. 7, projection lines 11i and 11j illustrate minimal geometric distortion of aperture 4 as projected towards eye 7, which are nearly undistinguishable geometrically from FIG. 6 projection lines 11g and 11h.
With reference to FIG. 8, there is illustrated one orthogonal cross section view of a mounting convention as it relates to the spherical peep sight apparatus 1, mounted on a fully drawn bowstring, as mentioned above in FIG. 1. FIG. 7 represents another embodiment of a draw angle variation wherein apparatus 1 is rotated off neutral position with respect to eye 7 and bowstring 6 is positioned at draw angle indicator 12l. Projection lines 10g and 10h illustrate the diameter of spherical peep sight apparatus 1, as projected towards eye 7. As illustrated in FIG. 8, projection lines 10g and 10h provide a true projection of apparatus 1 presented to eye 7, which are undistinguishable geometrically from FIG. 6 projection lines 10g and 10h. Projection lines 11i and 11j illustrate the diameter of the aperture port, projected silhouette towards eye 7. As illustrated in FIG. 8, projection lines 11i and 11j illustrate minimal geometric distortion of aperture 4 as projected towards eye 7, which are nearly undistinguishable geometrically from FIG. 6 projection lines 11g and 11h.
