U.S. patent application number 09/918553 was filed with the patent office on 2002-08-22 for moving pin archery sight.
Invention is credited to Savage, Huey.
Application Number | 20020112358 09/918553 |
Document ID | / |
Family ID | 26950520 |
Filed Date | 2002-08-22 |
United States Patent
Application |
20020112358 |
Kind Code |
A1 |
Savage, Huey |
August 22, 2002 |
Moving pin archery sight
Abstract
A moving pin archery sight that includes a ratio adjustment
mechanism for allowing a user to varying the ratio of movement
between the user adjustment end of the sight holder slide
positioning arm and the sight holder slide to mechanically
compensate the moving pin archery sight for use with particular
arrow speeds generated by particular bow and arrow combinations
and/or different arrows with the same bow.
Inventors: |
Savage, Huey; (Oak Grove,
LA) |
Correspondence
Address: |
Joseph N. Breaux
Suite A
10630 N. Oak Hills Pkwy.
Baton Rouge
LA
70810
US
|
Family ID: |
26950520 |
Appl. No.: |
09/918553 |
Filed: |
July 30, 2001 |
Related U.S. Patent Documents
|
|
|
|
|
|
Application
Number |
Filing Date |
Patent Number |
|
|
60264405 |
Jan 26, 2001 |
|
|
|
Current U.S.
Class: |
33/265 ;
124/87 |
Current CPC
Class: |
F41G 1/467 20130101 |
Class at
Publication: |
33/265 ;
124/87 |
International
Class: |
F41G 001/467 |
Claims
What is claimed is:
1. In a moving pin archery sights having a sight pin mounted to a
sight in mechanical connection with a sight pin positioning
mechanism that includes a positioning mechanism frame securable to
an archery bow, a sight holder slide that is movable upward and
downward along a predefined vertical trackway of the positioning
mechanism frame, a pivoting, sight holder slide positioning arm
pivotally connected at a pivot point to the positioning mechanism
frame and mechanically linked along a slide connecting end portion
thereof to the sight holder slide such that, as a user adjustment
end of the pivoting sight holder slide positioning arm moves along
an arcuate path in a substantially first direction, the sight
holder slide moves along a straight path in a second direction
substantially opposite the first direction, the pivot point being
between the user adjustment end and the slide connecting end
portion; the sight being carried on the sight holding slide; each
angular position of the user adjustment end of the pivoting sight
holder slide positioning arm indicating a different distance to a
target such that a user may adjust the position of the sight pin of
the sight to correspond with a particular distance to a target by
moving the user adjustment end of the pivoting sight holder slide
positioning arm to the particular angular position corresponding
with the particular distance to the target; the improvement
comprising: a ratio adjustment mechanism in connection between the
distance to target indicator/selector and the sight pin that is
operable to mechanically vary the ratio of movement between the
user adjustment end of the sight holder slide positioning arm and
the sight holder slide to mechanically compensate the moving pin
archery sight for use with particular arrow speeds generated by
particular bow and arrow combinations and/or different arrows with
the same bow and/or a distance to target indicator/selector
mechanism that allows a user to select a distance to target that
corresponds with a predicted distance to a target.
2. The improved moving pin sight of claim 1 wherein: the ratio
adjustment mechanism comprises: a slide bushing; a slide bushing
positioning assembly; a bushing position marker; and a set of arrow
speed indicator markings; the slide bushing having a first bushing
end slidably entrapped along a slide bushing trackway of the sight
holder slide that is oriented at a ninety degree angle to the
straight path of travel of the sight holder slide and a second
bushing end in connection with the slide bushing positioning
assembly; the slide bushing positioning assembly being mounted to
the slide connecting end portion of the sight holder slide
positioning arm and operable to vary the position of the second
bushing end along the slide connecting end portion of the sight
holder slide positioning arm and configured to hold the second
bushing end at a user set position with respect to the slide
connecting end portion of the sight holder slide positioning arm;
the bushing position marker being mechanically coupled to the slide
bushing in a manner to change position along with the second
bushing end in a fixed ratio; the set of arrow speed indicator
markings being formed onto a surface adjacent the bushing position
marker and parallel to the line of travel of the position marker
such that the user may position the bushing position marker
adjacent to a particular speed indicator marking to calibrate the
ratio of movement between the user adjustment end of the sight
holder slide positioning arm and the sight holder slide to the
arrow speed at which an arrow shot from an archery bow to which the
sight is attached leaves the archery bow; the set of arrow speed
indicator markings indicating higher speeds closer to the pivot
point; the distance between pairs of individual arrow speed
indicator markings becoming incrementally larger as the arrow speed
indicated incrementally decreases.
Description
TECHNICAL FIELD
[0001] The present invention relates to moving pin archery sights
having a sight pin mounted to a sight in mechanical connection with
a sight pin positioning mechanism that includes a positioning
mechanism frame securable to an archery bow, a sight holder slide
that is movable upward and downward along a predefined vertical
trackway of the positioning mechanism frame, a pivoting, sight
holder slide positioning arm pivotally connected at a pivot point
to the positioning mechanism frame and mechanically linked along a
slide connecting end portion thereof to the sight holder slide such
that, as a user adjustment end of the pivoting sight holder slide
positioning arm moves along an arcuate path in a substantially
first direction, the sight holder slide moves along a straight path
in a second direction substantially opposite the first direction,
the pivot point being between the user adjustment end and the slide
connecting end portion; the sight being carried on the sight
holding slide; each angular position of the user adjustment end of
the pivoting sight holder slide positioning arm indicating a
different distance to a target such that a user may adjust the
position of the sight pin of the sight to correspond with a
particular distance to a target by moving the user adjustment end
of the pivoting sight holder slide positioning arm to the
particular angular position corresponding with the particular
distance to the target; and more particularly to a moving pin
archery sight that includes a ratio adjustment mechanism for
allowing a user to varying the ratio of movement between the user
adjustment end of the sight holder slide positioning arm and the
sight holder slide to mechanically compensate the moving pin
archery sight for use with particular arrow speeds generated by
particular bow and arrow combinations and/or different arrows with
the same bow and/or a distance to target indicator/selector
mechanism that allows a user to select a distance to target that
corresponds with a predicted distance to a target.
BACKGROUND ART
[0002] Moving pin archery sights allow the archer to move the sight
pin to compensate for the distance to the target so that once the
distance to the target is selected, the archer sights in on the
target in the same manner by aligning an eyehole on the bow string,
the tip of the sight pin and the target. Although moving pin
archery sights allow for the repositioning of the sight pin to
compensate the sight for the arrow drop expected for the distance
to the target, they often do not accurately compensate the sight
because the mechanical movement of the sight pin is calibrated for
the flight of an arrow moving at a particular calibration arrow
speed. Thus, if the arrow being shot from the bow is moving at an
actual arrow speed that is either faster or slower than the
calibration arrow speed, the arrow will hit the target either too
high or too low, respectively. It would be desirable, therefore, to
have a moving pin archery sight that included a ratio adjustment
mechanism for allowing a user to varying the ratio of movement
between the user adjustment end of the sight holder slide
positioning arm and the sight holder slide to mechanically
compensate the moving pin archery sight for use with particular
arrow speeds generated by particular bow and arrow combinations
and/or different arrows with the same bow. In addition, because the
archer must mechanically adjust the sight to position of the sight
pin for a particular distance to the target, it is often difficult
for an archer who does not know what the distance to the target
will be until right before the arrow is to be shot, such as while
bow hunting, to adjust the sight without missing the chance for a
shot at the prey. It would be a benefit, therefore, to have a
moving pin bow sight that included a distance to target
indicator/selector mechanism that could be rapidly adjusted to the
desired target distance. Because the prey could escape when the
archer averts his/her eyes to make the distance adjustment to the
moving pin sight, it would be a further benefit to have a moving
pin sight with a distance to target indicator/selector mechanism
that emitted a slight, audible click for each increment of distance
to be adjusted for so that the hunter could maintain his sight pin
on the prey as the adjustment is made and release the arrow
immediately after or while the distance correction is made should
the prey begin to move away. Because hunting situations differ and
the prey may be within shooting distance over various distance to
target ranges, it would be a further benefit to have a distance to
target indicator/selector mechanism which included multiple
adjustment increment sets so that the hunter could select the
increment set that most closely matched the current hunting
conditions.
GENERAL SUMMARY DISCUSSION OF INVENTION
[0003] It is thus an object of the invention to provide an improved
moving pin archery sight that includes a ratio adjustment mechanism
for allowing a user to varying the ratio of movement between the
user adjustment end of the sight holder slide positioning arm and
the sight holder slide to mechanically compensate the moving pin
archery sight for use with particular arrow speeds generated by
particular bow and arrow combinations and/or different arrows with
the same bow.
[0004] It is a further object of the invention to provide an
improved moving pin archery sight that includes a ratio adjustment
mechanism for allowing a user to varying the ratio of movement
between the user adjustment end of the sight holder slide
positioning arm and the sight holder slide to mechanically
compensate the moving pin archery sight for use with particular
arrow speeds generated by particular bow and arrow combinations
and/or different arrows with the same bow wherein the ratio
adjustment mechanism includes a slide bushing, a slide bushing
positioning assembly, a bushing position marker, and a set of arrow
speed indicator markings; the slide bushing having a first bushing
end slidably entrapped along a slide bushing trackway of the sight
holder slide that is oriented at a ninety degree angle to the
straight path of travel of the sight holder slide and a second
bushing end in connection with the slide bushing positioning
assembly; the slide bushing positioning assembly being mounted to
the slide connecting end portion of the sight holder slide
positioning arm and operable to vary the position of the second
bushing end along the slide connecting end portion of the sight
holder slide positioning arm and configured to hold the second
bushing end at a user set position with respect to the slide
connecting end portion of the sight holder slide positioning arm;
the bushing position marker being mechanically coupled to the slide
bushing in a manner to change position along with the second
bushing end in a fixed ratio; the set of arrow speed indicator
markings being formed onto a surface adjacent the bushing position
marker and parallel to the line of travel of the position marker
such that the user may position the bushing position marker
adjacent to a particular speed indicator marking to calibrate the
ratio of movement between the user adjustment end of the sight
holder slide positioning arm and the sight holder slide to the
arrow speed at which an arrow shot from an archery bow to which the
sight is attached leaves the archery bow; the set of arrow speed
indicator markings indicating higher speeds closer to the pivot
point; the distance between pairs of individual arrow speed
indicator markings becoming incrementally larger as the arrow speed
indicated incrementally decreases.
[0005] It is a further an object of the invention to provide an
improved moving pin archery sight that includes a distance to
target indicator/selector mechanism that allows a user to select a
distance to target that corresponds with a predicted distance to a
target.
[0006] It is a further an object of the invention to provide an
improved moving pin archery sight that includes a distance to
target indicator/selector mechanism that allows a user to select a
distance to target that corresponds with a predicted distance to a
target in a manner that generates an audible sound for each
increment of distance changed.
[0007] It is a further an object of the invention to provide an
improved moving pin archery sight that includes a distance to
target indicator/selector mechanism that allows a user to select a
distance to target that corresponds with a predicted distance to a
target that allows a user to select from one of multiple distance
increment scales.
[0008] It is a further an object of the invention to provide an
improved moving pin archery sight that includes a distance to
target indicator/selector mechanism that allows a user to select a
distance to target that corresponds with a predicted distance to a
target wherein the distance to target indicator/selector mechanism
includes multiple sets of seating structures formed in connection
with a pivoting sight holder slide positioning arm facing surface
of the positioning mechanism frame and a mating structure carried
on the user adjustment end of the pivoting sight holder slide
positioning arm that is individually engageable with each of the
seating structures and is moveable to multiple mating structure
positions on the user adjustment end of the pivoting sight holder
slide positioning arm and releasably securable at each of the
multiple mating structure positions with a mating structure holding
mechanism; each seating structure corresponding to a particular
distance to target; each set of seating structures being spaced
along a separate arc corresponding angularly with a substantially
same angular portion of the angular travel of the user adjustment
end of the pivoting sight holder slide positioning arm; each
particular seating structure set of the multiple sets of seating
structures having a same particular structure set gap distance
between each pair of adjacent seating structures within the
particular seating structure set that corresponds to an increment
of distance to a target; the particular structure set gap distance
of one particular seating structure set being an integer multiple
of the particular structure set gap distance of another seating
structure set; each of the multiple mating structure positions on
the user adjustment end of the pivoting sight holder slide
positioning arm corresponding with a particular seating structure
set of the multiple sets of seating structures such that the mating
structure is restricted to engaging only with seating structures of
the corresponding particular seating structure set; the mating
structure being moveable between separate seating structures of a
particular seating structure set by deflecting the user adjustment
end of the pivoting sight holder slide positioning arm sufficiently
to disengage the mating structure from engaged relationship with a
seating structure, angularly moving the deflected user adjustment
end of the pivoting sight holder slide positioning arm such that
the mating structure is positioned adjacent the selected seating
structure, and then releasing the deflected user adjustment end of
the pivoting sight holder slide positioning arm to allow the mating
structure to engage the selected seating structure; the seating
structures and the mating structure being shaped and sized such
that a user may generate the deflecting force by pushing the user
adjustment end of the pivoting sight holder slide positioning arm
clockwise or counter-clockwise such that an engaged seating
structure and the mating structure generate a deflecting force
sufficient to cause the mating structure to disengage from the
engaged seating structure, slide along the pivoting sight holder
slide positioning arm facing surface of the positioning mechanism
frame and engage an adjacent seating structure in a manner to
generate a click sound audible to an archer such that the archer
may determine the number of incremental changes being made by the
number of audible clicks heard without removing his/her eye from
the target.
[0009] It is a still further object of the invention to provide an
improved moving pin bow sight that accomplishes some or all of the
of the above objects in combination.
[0010] Accordingly, an improved moving pin archery sight is
provided. In one embodiment the improvement to the moving pin
archery sight as described includes the addition of a moving pin
archery sight that includes a ratio adjustment mechanism for
allowing a user to varying the ratio of movement between the user
adjustment end of the sight holder slide positioning arm and the
sight holder slide to mechanically compensate the moving pin
archery sight for use with particular arrow speeds generated by
particular bow and arrow combinations and/or different arrows with
the same bow and/or a distance to target indicator/selector
mechanism that allows a user to select a distance to target that
corresponds with a predicted distance to a target; the ratio
adjustment mechanism including a slide bushing, a slide bushing
positioning assembly, a bushing position marker, and a set of arrow
speed indicator markings; the slide bushing having a first bushing
end slidably entrapped along a slide bushing trackway of the sight
holder slide that is oriented at a ninety degree angle to the
straight path of travel of the sight holder slide and a second
bushing end in connection with the slide bushing positioning
assembly; the slide bushing positioning assembly being mounted to
the slide connecting end portion of the sight holder slide
positioning arm and operable to vary the position of the second
bushing end along the slide connecting end portion of the sight
holder slide positioning arm and configured to hold the second
bushing end at a user set position with respect to the slide
connecting end portion of the sight holder slide positioning arm;
the bushing position marker being mechanically coupled to the slide
bushing in a manner to change position along with the second
bushing end in a fixed ratio; the set of arrow speed indicator
markings being formed onto a surface adjacent the bushing position
marker and parallel to the line of travel of the position marker
such that the user may position the bushing position marker
adjacent to a particular speed indicator marking to calibrate the
ratio of movement between the user adjustment end of the sight
holder slide positioning arm and the sight holder slide to the
arrow speed at which an arrow shot from an archery bow to which the
sight is attached leaves the archery bow; the set of arrow speed
indicator markings indicating higher speeds closer to the pivot
point; the distance between pairs of individual arrow speed
indicator markings becoming incrementally larger as the arrow speed
indicated incrementally decreases.
[0011] In another embodiment, the improvement to the moving pin
sight includes the addition of a distance to target
indicator/selector mechanism that allows a user to select a
distance to target that corresponds with a predicted distance to a
target; the distance to target indicator/selector mechanism
including multiple sets of seating structures formed in connection
with a pivoting sight holder slide positioning arm facing surface
of the positioning mechanism frame and a mating structure carried
on the user adjustment end of the pivoting sight holder slide
positioning arm that is individually engageable with each of the
seating structures and is moveable to multiple mating structure
positions on the user adjustment end of the pivoting sight holder
slide positioning arm and releasably securable at each of the
multiple mating structure positions with a mating structure holding
mechanism; each seating structure corresponding to a particular
distance to target; each set of seating structures being spaced
along a separate arc corresponding angularly with a substantially
same angular portion of the angular travel of the user adjustment
end of the pivoting sight holder slide positioning arm; each
particular seating structure set of the multiple sets of seating
structures having a same particular structure set gap distance
between each pair of adjacent seating structures within the
particular seating structure set that corresponds to an increment
of distance to a target; the particular structure set gap distance
of one particular seating structure set being an integer multiple
of the particular structure set gap distance of another seating
structure set; each of the multiple mating structure positions on
the user adjustment end of the pivoting sight holder slide
positioning arm corresponding with a particular seating structure
set of the multiple sets of seating structures such that the mating
structure is restricted to engaging only with seating structures of
the corresponding particular seating structure set; the mating
structure being moveable between separate seating structures of a
particular seating structure set by deflecting the user adjustment
end of the pivoting sight holder slide positioning arm sufficiently
to disengage the mating structure from engaged relationship with a
seating structure, angularly moving the deflected user adjustment
end of the pivoting sight holder slide positioning arm such that
the mating structure is positioned adjacent the selected seating
structure, and then releasing the deflected user adjustment end of
the pivoting sight holder slide positioning arm to allow the mating
structure to engage the selected seating structure; the seating
structures and the mating structure being shaped and sized such
that a user may generate the deflecting force by pushing the user
adjustment end of the pivoting sight holder slide positioning arm
clockwise or counter-clockwise such that an engaged seating
structure and the mating structure generate a deflecting force
sufficient to cause the mating structure to disengage from the
engaged seating structure, slide along the pivoting sight holder
slide positioning arm facing surface of the positioning mechanism
frame and engage an adjacent seating structure in a manner to
generate a click sound audible to an archer such that the archer
may determine the number of incremental changes being made by the
number of audible clicks heard without removing his/her eye from
the target.
[0012] In yet another embodiment the improvement to the moving pin
sight includes the addition of a moving pin archery sight that
includes a ratio adjustment mechanism for allowing a user to
varying the ratio of movement between the user adjustment end of
the sight holder slide positioning arm and the sight holder slide
to mechanically compensate the moving pin archery sight for use
with particular arrow speeds generated by particular bow and arrow
combinations and/or different arrows with the same bow and the
addition of a distance to target indicator/selector mechanism that
allows a user to select a distance to target that corresponds with
a predicted distance to a target; the ratio adjustment mechanism
including a slide bushing, a slide bushing positioning assembly, a
bushing position marker, and a set of arrow speed indicator
markings; the slide bushing having a first bushing end slidably
entrapped along a slide bushing trackway of the sight holder slide
that is oriented at a ninety degree angle to the straight path of
travel of the sight holder slide and a second bushing end in
connection with the slide bushing positioning assembly; the slide
bushing positioning assembly being mounted to the slide connecting
end portion of the sight holder slide positioning arm and operable
to vary the position of the second bushing end along the slide
connecting end portion of the sight holder slide positioning arm
and configured to hold the second bushing end at a user set
position with respect to the slide connecting end portion of the
sight holder slide positioning arm; the bushing position marker
being mechanically coupled to the slide bushing in a manner to
change position along with the second bushing end in a fixed ratio;
the set of arrow speed indicator markings being formed onto a
surface adjacent the bushing position marker and parallel to the
line of travel of the position marker such that the user may
position the bushing position marker adjacent to a particular speed
indicator marking to calibrate the ratio of movement between the
user adjustment end of the sight holder slide positioning arm and
the sight holder slide to the arrow speed at which an arrow shot
from an archery bow to which the sight is attached leaves the
archery bow; the set of arrow speed indicator markings indicating
higher speeds closer to the pivot point; the distance between pairs
of individual arrow speed indicator markings becoming incrementally
larger as the arrow speed indicated incrementally decreases; the
distance to target indicator/selector mechanism including multiple
sets of seating structures formed in connection with a pivoting
sight holder slide positioning arm facing surface of the
positioning mechanism frame and a mating structure carried on the
user adjustment end of the pivoting sight holder slide positioning
arm that is individually engageable with each of the seating
structures and is moveable to multiple mating structure positions
on the user adjustment end of the pivoting sight holder slide
positioning arm and releasably securable at each of the multiple
mating structure positions with a mating structure holding
mechanism; each seating structure corresponding to a particular
distance to target; each set of seating structures being spaced
along a separate arc corresponding angularly with a substantially
same angular portion of the angular travel of the user adjustment
end of the pivoting sight holder slide positioning arm; each
particular seating structure set of the multiple sets of seating
structures having a same particular structure set gap distance
between each pair of adjacent seating structures within the
particular seating structure set that corresponds to an increment
of distance to a target; the particular structure set gap distance
of one particular seating structure set being an integer multiple
of the particular structure set gap distance of another seating
structure set; each of the multiple mating structure positions on
the user adjustment end of the pivoting sight holder slide
positioning arm corresponding with a particular seating structure
set of the multiple sets of seating structures such that the mating
structure is restricted to engaging only with seating structures of
the corresponding particular seating structure set; the mating
structure being moveable between separate seating structures of a
particular seating structure set by deflecting the user adjustment
end of the pivoting sight holder slide positioning arm sufficiently
to disengage the mating structure from engaged relationship with a
seating structure, angularly moving the deflected user adjustment
end of the pivoting sight holder slide positioning arm such that
the mating structure is positioned adjacent the selected seating
structure, and then releasing the deflected user adjustment end of
the pivoting sight holder slide positioning arm to allow the mating
structure to engage the selected seating structure; the seating
structures and the mating structure being shaped and sized such
that a user may generate the deflecting force by pushing the user
adjustment end of the pivoting sight holder slide positioning arm
clockwise or counter-clockwise such that an engaged seating
structure and the mating structure generate a deflecting force
sufficient to cause the mating structure to disengage from the
engaged seating structure, slide along the pivoting sight holder
slide positioning arm facing surface of the positioning mechanism
frame and engage an adjacent seating structure in a manner to
generate a click sound audible to an archer such that the archer
may determine the number of incremental changes being made by the
number of audible clicks heard without removing his/her eye from
the target.
BRIEF DESCRIPTION OF DRAWINGS
[0013] For a further understanding of the nature and objects of the
present invention, reference should be made to the following
detailed description, taken in conjunction with the accompanying
drawings, in which like elements are given the same or analogous
reference numbers and wherein:
[0014] FIG. 1 is a perspective view of an exemplary embodiment of
the improved moving pin archery sight of the present invention.
[0015] FIG. 2 is a side plan view of the improved moving pin
archery sight view of the improved moving pin archery sight of FIG.
1 with the sight assembly detached from the sight holder slide and
the with the mating structure releasably secured in position to
engage the outermost of the three sets of oblong curved sided,
seating structure cavities provided in this embodiment by the
knurled securing nut member.
[0016] FIG. 3 is a side plan view of the improved moving pin
archery sight of FIG. 1 with the pivoting sight holders slide
positioning arm removed to show the internally threaded, pivot
screw attachment aperture and the sight holder slide slidably
entrapped to slide along a straight path defined by the straight,
oblong sight holder aperture formed in the positioning mechanism
frame by two slide attachment screw/bushing sets positioned through
the oblong sight holder aperture and threaded into the two
internally threaded slide attachment screw apertures formed in the
sight holder slide; the sight holder slide having a slide bushing
trackway formed through the sight holder slide that is oriented at
a ninety degree angle to the straight oblong sight holder aperture
of the positioning mechanism frame.
[0017] FIG. 3A is a side plan view of the improved moving pin
archery sight of FIG. 1 with the pivoting sight holders slide
positioning arm removed from the opposite side shown in FIG. 3
showing the internally threaded, pivot screw attachment aperture
and the sight holder slide slidably entrapped to slide along a
straight path defined by the straight, oblong sight holder aperture
formed in the positioning mechanism frame by two slide attachment
screw/bushing sets positioned through the oblong sight holder
aperture; the sight holder slide having a slide bushing trackway
formed through the sight holder slide that is oriented at a ninety
degree angle to the straight oblong sight holder aperture of the
positioning mechanism frame; the sight assembly being attached to
the sight holder slide with two sight assembly attachment
screws.
[0018] FIG. 4 is a side plan view of the outwardly facing surface
of the sight holder slide positioning arm of the exemplary improved
moving pin sight of FIG. 1 in isolation showing the positioning arm
pivot screw positioned through the pivot aperture of the sight
holder slide positioning arm at a point between the user adjustment
end of the pivoting sight holder slide positioning arm and the
slide connecting end portion of the sight holder slide positioning
arm; a portion of the ratio adjustment mechanism provided on the
slide connecting end portion of the sight holder slide positioning
arm including the knurled knob on the end of the positioning screw
of slide bushing positioning assembly, the bushing position marker
carried on the positioning screw connecting end of the slide
bushing, the positioning screw connecting end being threaded onto
and positioned by rotation of the positioning screw and the set of
arrow speed indicator markings positioned along the length of a
bushing position marker viewing aperture formed trough the
outwardly facing surface of the slide connecting end portion of the
sight holder slide positioning arm; and a portion of the mating
structure carried on the user adjustment end of the pivoting sight
holder slide positioning arm releasably secured in position to
engage the outermost of the three sets of oblong curved sided,
seating structure cavities provided in this embodiment by the
knurled securing nut member threaded onto the threaded rod
extending out of a backside of the mating structure member.
[0019] FIG. 5 is a side plan view of the positioning mechanism
frame facing surface of the sight holder slide positioning arm of
the exemplary improved moving pin sight of FIG. 1 in isolation
showing the positioning arm pivot screw positioned through the
pivot aperture of the sight holder slide positioning arm at a point
between the user adjustment end of the pivoting sight holder slide
positioning arm and the slide connecting end portion of the sight
holder slide positioning arm; a portion of the ratio adjustment
mechanism provided on the slide connecting end portion of the sight
holder slide positioning arm including the slide bushing slidably
positioned on the positioning mechanism frame facing surface of the
slide connecting end portion of the sight holder slide positioning
arm, movably linearly along by rotation of the knurled knob on the
end of the positioning screw and sized fit into and substantially
playlesslly, slidably travel along the slide bushing trackway of
the sight holder slide; and the positioning mechanism frame facing
surface of the mating structure member having the oblong, curve
sided, mating structure extending outwardly therefrom that is sized
to at least partially seat into and releasably engage each of the
oblong curved sided, seating structure cavities provided in this
embodiment.
[0020] FIG. 6 is a 40 yard conversion table that is provided for
use when calibrating the improved moving pin archer sight of FIG. 1
for use with a particular bow and arrow combination.
[0021] FIG. 7 is a 50 yard conversion table that is provided for
use when calibrating the improved moving pin archer sight of FIG. 1
for use with a particular bow and arrow combination.
[0022] FIG. 8 is a 60 yard conversion table that is provided for
use when calibrating the improved moving pin archer sight of FIG. 1
for use with a particular bow and arrow combination.
EXEMPLARY MODE FOR CARRYING OUT THE INVENTION
[0023] FIGS. 1-8 and 3A illustrate various aspects of an exemplary
embodiment of the improved moving pin archery sight of the present
invention, generally designated 10. Improved moving pin archery
sight 10 includes a sight pin 12 mounted to a sight, generally
designated 14 in mechanical connection with a sight pin positioning
mechanism, generally designated 16, that includes a positioning
mechanism frame, generally designated 18, securable to an archery
bow 20 with screws 22; a sight holder slide, generally designated
24, that is movable upward and downward along a predefined vertical
trackway 26 of positioning mechanism frame 16; a pivoting, sight
holder slide positioning arm, generally designated 28, pivotally
connected at a pivot point 30 to positioning mechanism frame with a
pivot screw 32 and mechanically linked along a slide connecting end
portion thereof, generally designated 34, to sight holder slide 24
such that, as a user adjustment end, generally designated 36, of
pivoting sight holder slide positioning arm 28 moves along an
arcuate path in a substantially first direction "A", sight holder
slide 24 moves along a straight path "B" in a second direction
substantially opposite the first direction "A". Pivot point 30 lies
between user adjustment end 36 and slide connecting end portion 34.
Sight 14 is carried on sight holding slide 24 and is attached
thereto with two screws 40.
[0024] According to the mechanical construction of moving pin sight
10, each angular position of user adjustment end 36 of pivoting
sight holder slide positioning arm 28 indicates a different
distance to a target such that a user may adjust the position of
sight pin 12 of sight 14 to correspond with a particular distance
to a target by moving user adjustment end 36 of pivoting sight
holder slide positioning arm 28 to the particular angular position
corresponding with the particular distance to the target.
[0025] In this embodiment, the improvements to moving pin sight 10
include the addition of a ratio adjustment mechanism, generally
designated 50, and a distance to target indicator/selector,
generally designated 52. Ratio adjustment mechanism 50 is provided
for allowing a user to varying the ratio of movement between user
adjustment end 36 of sight holder slide positioning arm 28 and
sight holder slide 24 to mechanically compensate the moving pin
archery sight 10 for use with particular arrow speeds generated by
particular bow and arrow combinations and/or different arrows with
the same bow. Distance to target indicator/selector mechanism 52 is
provides the user with three user selectable sets of adjustment
increments and also allows the user to verify that the distance to
target setting has been adjusted both visually and audibly by
counting the audible clicks generated by the distance to target
indicator/selector mechanism 52 as the user adjustment end 36 of
the sight holder slide positioning arm 28 moved from a known
distance to target location to the desired distance to target
location.
[0026] In this exemplary embodiment ratio adjustment mechanism 50
includes a slide bushing, generally designated 56; a slide bushing
positioning assembly, generally designated 58; a bushing position
marker 60; and a set of arrow speed indicator markings, generally
designated 62. Slide bushing 56 has a first bushing end 64 slidably
entrapped along a slide bushing trackway 68 of sight holder slide
24 that is oriented at a ninety degree angle to the straight path
of travel 26 of sight holder slide 24 and a second bushing end 70
threaded onto a positioning screw 72 of slide bushing positioning
assembly 58 that is rotatable by a user by grasping and turning a
connected adjustment knob 74 to position bushing marker 60 at the
desired setting indicated with respect to the set of arrow speed
indicator markings 62. Slide bushing positioning assembly 58 is
mounted to slide connecting end portion 34 of sight holder slide
positioning arm 28 and is operable to allow the user to vary the
position of second bushing end 64 along slide connecting end
portion 34 of sight holder slide positioning arm 28 and is
configured to hold second bushing end 64 at the user set position
with respect to slide connecting end portion 34 until positioning
screw 72 is rotated by the user. Bushing position marker 60 rides
on slide bushing 56 in a manner to change position along with the
second bushing end 70 in a fixed 1 to 1 ratio. The set of arrow
speed indicator markings 62 are formed onto a surface of slide
connecting end portion 34 adjacent to bushing position marker 60
and parallel to the line of travel of position marker 60 along
positioning screw 72 such that the user may position the bushing
position marker 60 adjacent to a particular speed indicator marking
81 to calibrate the ratio of movement between the user adjustment
end 36 of sight holder slide positioning arm 28 and sight holder
slide 24 to the arrow speed at which a particular arrow, shot from
the archery bow 20 to which moving pin sight 10 is attached, leaves
the archery bow 20. The set of arrow speed indicator markings 62
indicate higher arrow speeds closer to the pivot point of sight
holder slide positioning arm 28. The distance between pairs of
individual arrow speed indicator markings 81 become incrementally
larger as the arrow speed indicated by the individual arrow speed
indicator markings 81 incrementally decreases. In this embodiment,
the distance between the arrow speed indicator mark 81 for an arrow
speed of 330 ft/sec and the arrow speed indicator mark 81 for an
arrow speed of 330 ft/sec is about 0.15"; the distance between the
arrow speed indicator mark 81 for an arrow speed of 300 ft/sec and
the arrow speed indicator mark 81 for an arrow speed of 270 ft/sec
is about 0.18"; the distance between the arrow speed indicator mark
81 for an arrow speed of 270 ft/sec and the arrow speed indicator
mark 81 for an arrow speed of 240 ft/sec is about 0.28"; and the
distance between the arrow speed indicator mark 81 for an arrow
speed of 240 ft/sec and the arrow speed indicator mark 81 for an
arrow speed of 220 ft/sec is about 0.39". This varying distance
between arrow speed indicators occurs because at a level
trajectory, (disregarding other variables such as wind direction
and speed, the physical characteristics of the arrow head and
flights of the arrow, and similar considerations), the arrow drops
a distance "D" during the time it is in flight that is proportional
to the square of the flight time between the release of the arrow
and when it strikes the target. The distance "D" is calculated
classically by the equation D=at.sup.2 where "a" is the
acceleration caused by gravity or 32 ft/s.sup.2 and t is the flight
time. The particular distances between particular pairs of arrow
speed indicator marks 81 is also a function of the physical size of
the sight 10 and the various physical mechanical interrelationships
between the parts of the particular sight pin positioning mechanism
of a particular moving pin sight to which the improvements of the
present invention are adapted.
[0027] The moving pin sight 10 may be calibrated for a particular
arrow speed using bow 20 and a particular arrow by adjusting the
position of the bushing position marker 60 until the shot arrows
are hitting the target at two predetermined distances. The two
furthest distances that can be shot by the archer will yield the
most accurate setting of the bushing position marker 60 and the
most accurate arrow speed calibration of sight 10 for a particular
arrow and bow. The archer can then read the arrow speed adjacent to
the bushing position marker 60 from the set of arrow speed
indicator markings 62.
[0028] The pin sight 10 may also be calibrated for a particular
arrow speed using the conversion tables of FIGS. 6,7 and 8. When
the sight 10 is to be calibrated with the conversion tables, the
archer should measure from the target out to 60 yards on a near
level surface and make marks every five yards. The speed indicator
should then be set to 300 ft/sec and the distance to target
indicator/selector 52 positioned at the 20 yard position. The
archer should then shoot arrows at the target from the twenty yard
mark and adjust only the sight 14 using a vertical sight adjustment
120 provided on sight 14 to raise or lower the tip end 124 of sight
pin 12 until the archer consistently hits the target at the aimed
target spot. Do not move the distance to target indicator/selector
52 from the 20 yard position until this adjustment is made.
[0029] The archer should then move the distance to target
indicator/selector 52 to the 60 yard mark (or the farthest of the
50 and 40 yard marks if the archer cannot shoot accurately from 60
yards). The archer should then move to the 60 yard spot (or the
respective 50 or 40 yard spot) and shoot arrows at the target
moving toward or away from the target until the archer consistently
hits the targeted spot. The archer should then measure the spot
from which he/she is shooting accurately, look up the spot distance
on the appropriate conversion chart and read off the arrow speed
positioned next to the spot distance. The archer should then
calibrate the sight by positioning the bushing position marker 60
adjacent to the arrow speed indicator marking 81 that corresponds
with the arrow speed read off the conversion chart.
[0030] In this embodiment, the distance to target
indicator/selector mechanism 52 includes multiple sets, generally
designated 84a,84b,84c, of oblong, curved-sided, seating structure
cavities 86 formed into a pivoting sight holder slide positioning
arm facing surface 88 of positioning mechanism frame 18 and an
oblong, curvesided, mating structure 90 extending outwardly from a
positioning mechanism frame facing surface 92 of a mating structure
member 94 that is carried on the user adjustment end 36 of pivoting
sight holder slide positioning arm 28. In this embodiment, oblong,
curved-sided, seating structure cavities 86 are molded into a
molded plastic insert 87 secured into a correspondingly shaped
cavity 98 of positioning mechanism frame 18 and held in place with
screws 100. Mating structure member 94 is also molded from plastic.
Oblong, curve sided, mating structure 90 is shaped and sized to at
least partially seat into and releasably engage each of the oblong
curved sided, seating structure cavities 86 provided in this
embodiment.
[0031] Mating structure member 94 is moveably positionable and
securable in each of three securing positions 108a,108b,108c that
are selected such that, when mating structure member 94 is secured
in one of the three securing positions 108a,108b,108c, the oblong,
curve sided, mating structure 90 moves over and is engageable with
a corresponding set 84a,84b,84c, of oblong, curved-sided, seating
structure cavities 86. The gap distances between the seating
structure cavities 86 of set 84a are equivalent to one unit of
distance, (such as a yard or a meter); the gap distances between
the seating structure cavities 86 of set 84b are equivalent to five
of the same units of distance used by set 84a; and the gap
distances between the seating structure cavities 86 of set 84c are
equivalent to ten of the same units of distance used by set 84a.
The relative sizes and orientations of the user adjustment end 36
of pivoting sight holder slide positioning arm 28, the oblong,
curved-sided, seating structure cavities 86, the surface of the
molded plastic insert 87, and the oblong, curve sided, mating
structure 90 are selected such that the mating structure 90 is
moveable between separate seating structure cavities 86 by two
methods.
[0032] In the first method, the user moves the mating structure 90
between separate seating structure cavities 86 by pushing user
adjustment end 36 of pivoting sight holder slide positioning arm 28
in a direction away from the surface of the molded plastic insert
87, and the oblong, curved-sided, seating structure cavity 86 being
moved away from until mating structure 90 is free to move over the
surface of the molded plastic insert 87 without contacting. The
user then positions mating structure 90 over the desired the
selected seating structure cavity 86 by pivoting user adjustment
end 36 of pivoting sight holder slide positioning arm 28 while it
is still deflected. Pivoting user adjustment end 36 of pivoting
sight holder slide positioning arm 28 is then released and mating
structure 90 engages the selected seating structure cavity 86.
[0033] In the second method, the user simply pushes user adjustment
end 36 of pivoting sight holder slide positioning arm 28 in the
direction toward the desired seating structure cavity, because the
sides of both the mating structure 90 and the seating structure
cavities 86 are curved, pushing on user adjustment end 36 of
pivoting sight holder slide positioning arm 28 in the manner
described causes the curved surfaces of the mating structure 90 and
the particular seating structure cavity 86 with which it is
currently engaged act against each other to deflect the user
adjustment end 36 of pivoting sight holder slide positioning arm 28
sufficiently to allow mating structure 90 to disengage from the
particular seating structure cavity 86 with which it is currently
engaged slide over the surface of plastic molded insert 87 and then
snap into the adjacent seating structure cavity 86 in a manner that
generates a slightly audible click sound. In this manner the archer
can move the mating structure 90 from engagement with a known
particular seating structure cavity 86 to a desired selected
seating structure cavity 86 by knowing which set 84a,84b,84c, of
oblong, curved-sided, seating structure cavities 86 is being used
and by counting the audible clicks until the desired seating
structure cavity 86 is reached. This second method allows the
archer to maintain his/her sight pin on the prey or target and
release the arrow immediately after the adjustment is made or
during the adjustment if the prey begins to move out of range. It
can be seen from the preceding description that an improved moving
pin archery sight has been provided.
[0034] It is noted that the embodiment of the improved moving pin
archery sight described herein in detail for exemplary purposes is
of course subject to many different variations in structure,
design, application and methodology. Because many varying and
different embodiments may be made within the scope of the inventive
concept(s) herein taught, and because many modifications may be
made in the embodiment herein detailed in accordance with the
descriptive requirements of the law, it is to be understood that
the details herein are to be interpreted as illustrative and not in
a limiting sense.
* * * * *