The invention relates to a sight. In particular, the sight includes pins having a vertical portion, the pins defining sight points.
This invention relates generally to archery equipment and more particularly to a sighting apparatus for use with an archery bow.
Bow sights generally have multiple sight points, used when shooting arrows at targets positioned at different distances from the archer. Many bow sights include multiple sight points attached to horizontal pins. Bow sights with horizontal pins are shown, for example, in U.S. Pat. Nos. 5,103,568; 5,676,122; and 5,685,081.
A number of U.S. patents disclose bow sights having various other arrangements of sighting points. See, for example, U.S. Pat. Nos. 3,234,651; 4,120,096; 5,086,567; and 5,131,153.
The invention is directed to a sight having at least two vertical pins, each of the pins defining a sight point. When viewed by the archer in a shooting position, the pins are vertically aligned.
In one aspect, the invention is to a bow sight having at least two pins, each of the pins having a vertical portion, with the vertical portions of the two pins being aligned when viewed by the archer in a shooting position. Each of the pins defines a sight point. The bow sight has a support structure to which the pins are connected, and the support structure includes a mounting base for attaching the sight to a bow.
In another aspect, the invention is to a bow sight having a mounting base configured for attachment to a bow, a support structure movably connected to the mounting base, and a first pin, a second pin, and a third pin adjustably connected to the support structure. Each of the first, second and third pins has a first end connected via an attachment point to its support structure; and a second end proximate a sight point. The first pin, the second pin, and the third pin are vertically aligned when the bow sight is in a first position and viewed by the archer holding the bow in a shooting position. The pins can extend upward or downward from the support structure.
The first position and the second position can be 90 degrees apart. The support structure may be rotationally connected to the mounting base, or be removably connected.
In another aspect of the invention, a bow sight is provided having a mounting base configured for attachment to a bow, and a support structure releasably connected to the mounting base, the support structure having a first mounting region and a second mounting region, each of the first and second mounting regions configured for connection to the mounting base. A pin is connected to the support structure, the pin having a first end connected to the support structure at an attachment point, and a second end defining a sight point. When the support structure is connected to the mounting base via the first mounting region, the bow sight is in a first position and the pin is in a first position, and when the support structure is connected to the mounting base via the second mounting region, the bow sight is in a second position and the pin is in a second position which is different than the first position. The first mounting region can be approximately 90 degrees from the second mounting position, and when the pin is in the first position, the pin can extend vertically, and when the pin is in the second position, the pin can extend horizontally. Second and third pins can be included, as can an alignment system for each or any of the pins.
In yet another aspect, the invention is to a bow sight having a mounting base configured for attachment to a bow, a support structure movably connected to the base, the support structure movable from a first position to a second position, and first and second pins connected to the support structure. The first second pins extend vertically and are aligned when the support structure is in a first position, and the first and second pins extend horizontally when the support structure is in a second position.
It is understood that these features described above can be combined in any manner to provide a bow sight in accordance with this disclosure.
a is a rear view of a vertical pin according to the principles of the present invention.
b is a front view of the vertical pin of
c is a left view of the vertical pin of
d is a right view of the vertical pin of
a is a front view of still a further embodiment of a bow sight according to the principles of the invention.
b is a top view of the bow sight of
In the following description of various embodiments, reference is made to the accompanying drawings which form a part hereof, and in which is shown by way of illustration specific embodiments in which the invention may be practiced. It is to be understood that other embodiments may be utilized and structural changes may be made without departing from the scope of the present invention.
A bow sight is a device that is attachable to an archery bow, such as a compound bow or a cross-bow, and which provides one or more sight points to facilitate targeting by the archer. The archer uses a selected sight point to aim, and shoot, at a desired target. A peep sight may be placed on the string of the bow such that the archer can sight through the peep sight and at the sight point with the target in the background. For purposes of this application, the view of the bow sight as seen from the archer in the shooting position is referred to as the front view of the bow sight.
A first preferred embodiment of a bow sight 12 is illustrated in
A support structure is any suitable structural member or members that support(s) the pins and sight points. Typically, the support structure includes or has a mounting base for attaching bow sight 12 to a bow. In a preferred embodiment, support structure 32 is a generally circular shaped piece of material, such as acrylic, polycarbonate, or other plastic, aluminum, or the like, that supports the vertical pins 30a–e which support the sight points 20a–e respectively. Other examples of suitable support structure shapes include square, elliptical, and oblong. The support structure may be composed of multiple sections or pieces that together form the support structure. It is preferred that the support structure encompasses and encircles pins 30a–e at least partially, so that pins 30a–e are positioned within support structure 32. A circular or other annular shape of support structure 32 provides protection of the vertical pins 30a–e from being damaged or bent while also providing a good view of the ultimate target through the interior portion of the circular support structure.
As stated above, bow sight 12 has vertical pins 30a–e. A vertical pin is an elongate member having a vertically elongated portion. A vertical pin could include features in addition to the fact that it has a length that is vertical. For example, a vertical pin could be an L-shaped pin with the horizontal portion of the L-shape extending in the direction toward the archer in the shooting position. See
The pin supports or otherwise defines a sight point, which the archer uses for targeting an object. The sight point may be integral with the pin or be a separate piece from the vertical pin.
A sight or sighting point is any shape, point, or indicia of any sort that is visually placed in line with the target to be shot at for assisting in the proper aiming of the bow. Sight points can be circular shapes, other geometrical shapes, colored dots, the end of a light gathering cable, or simply the end of a sight pin, for example.
In the illustrated embodiment, the sight points 20a–e are formed by the ends of the fiber optic cables 26a–e. The fiber optic cables 26a–e collect light along their lengths, and the light exits the end of the cables 26a–e forming the sight points. In this preferred embodiment, the ends of the fiber optic cables 26a–e are held in place by vertical pins 30a–e.
In a preferred embodiment, the vertical pins 30a–e are linear vertical pins that define a hole in the uppermost end for receiving the ends of the fiber optic cables 26a–e. In another preferred embodiment, the vertical pins are linear vertical pins that do not define a hole in the uppermost end. In this embodiment, the ends of the fiber optic cables 26a–e are glued or crimped to the ends of the vertical pins 30a–e.
a–d show a preferred embodiment of a vertical pin 30a from the rear, front, left and right views respectively. The fiber optic cable 26a can also be seen in its relationship to the vertical pin 30a.
The point at which a vertical pin is attached to a support structure is the attachment point. Vertical pins can be attached to the support structure in many different orientations. Vertical pins can be attached to the support structure with the sight point below the attachment point or with the sight point above the attachment point. It is also within the scope of the present invention to have a bow sight with one or more vertical pins attached to the support structure with the sight point below the attachment point and one or more vertical pins attached to the support structure with the sight point above the attachment point.
It is often desired to adjust the sight point height associated with a particular vertical pin. These adjustments are made to “sight-in” the bow so that each sight point is accurately associated with a target of a particular distance. A vertical pin is “vertically adjustable” when the associated sight point for that vertical pin can be moved vertically up or down.
In a preferred embodiment, each of the vertical pins 30a–e is vertically adjustable by movement of the entire vertical pin, which can be accomplished by a system of gears on the pins and on knobs. Each of the vertical pins 30a–e include gears or teeth, such as gears 50 on vertical pins 30a–e as shown in
Referring to
This vertically adjustable pin system includes cam members 57a–e which allow the archer to lock the vertical position of each vertical pin 30a–e as desired. The cam members 57a–e rotate about an axis rod 59. Rotation of a cam member 57a–e results in engagement or disengagement of the respective cam member 57a–c with the pin 30a–e, preferably the side of the vertical pin opposite the gears 50. This camming action allows the archer to prevent the vertical pins from moving once their vertical height is properly set.
In order to adjust the vertical position of a pin, the archer disengages the corresponding cam member from the pin, makes an adjustment of the vertical height of the pin by rotating or otherwise moving the adjustment lever, and then moves the cam member back into engagement with the vertical pin to hold its new vertical position. Once each pin is adjusted to the proper vertical position, cam members 57a–e inhibit rotation of the adjustment knobs 54a–e and thus vertical movement of pins 30a–e.
Other means for preventing rotation of the adjustment knobs are contemplated. For example, a screw could be used in place of cam members 57a–e. Such screws (not shown) would extend perpendicular to the vertical pins and would extend through a hole in the support structure 32. Tightening of the screw associated with the vertical pin 30a, for example, would secure the vertical position of the sight point on vertical pin 30a. To adjust the height of vertical pin 30a, the associated screw is loosened and the adjustment knob 55a rotated. Additionally, other methods for adjusting the height of pins 30a–e are contemplated. For example, pins 30a–e could be manually raised and lowered, rather than via gears.
As discussed above, in a preferred embodiment of the invention, the end of a light gathering cable is used as the sight point, at the end of or close to the end of a vertical pin. A light gathering cable is any cable that collects light along the perimeter of its length and projects the light out the end of the cable; an example of a light gathering cable is a fiber optic cable.
Fiber optic cables 26a–e are mounted around the perimeter of the support structure 32 as shown in
In a preferred embodiment of the bow sight of the invention, the vertical pins, pin height adjustment levers, cam lock mechanisms and the support structure are made of acrylic plastic. It should be appreciated, however, that this invention is not limited by the type of material used for its parts. Many alternative materials can be used. For example, in an alternative embodiment these parts could be made of aluminum or any other material that can structurally perform the functions of these parts.
It is also noted that in an alternative preferred embodiment, the pins within the support structure are protected by a circular and planar piece of non-opaque plexiglass or other suitable material, such as polycarbonate. The protector material (not shown) fits within the rim 11 of the support structure 32 (see
The present invention also provides a bow sight having a torque adjustment feature. It is well recognized that each archer tends to hold a bow differently than he next. Some archers tend to torque the bow one way or another in the horizontal plane while shooting an arrow. Such bow torque removes the vertical pins 30a–e from alignment and causes inaccurate shooting.
It is important that vertical alignment of the vertical pins be accomplished so that accuracy in shooting the bow with the bow sight can be achieved. Two vertical pins are “vertically aligned” when they are in a single vertical line as viewed from the position of the archer while holding the bow in the shooting position (with the string drawn). Vertical pins that do not form a single line as viewed from the archer, but that through an adjustment can be brought into a single line from the view of the archer still fall within the definition of “vertically aligned”.
In a preferred embodiment, all five vertical pins 26a–e are vertically aligned. While the vertical pins 26a–e may not initially form a single line as viewed by the archer in the shooting position, the pins can be adjusted to bring the five pins 26a–e into a single line as viewed from the archer in the shooting position, as will be described below. The present invention provides an adjustment system to compensate for bow torque.
Referring to
If the bow is not being held straight, that is, torque is being applied to the bow, prior to adjustment, the archer will see that the vertical pins 30a–e are not lined up in a single vertical line with the bow torque indicating wire 79. The archer will then know that bow torque adjustment is required.
The bow torque adjustment system is embodied in the ability to rotate the support structure 32 about an axis 70. This bow torque adjustment system compensates for the torque to ensure vertical alignment of the vertical pins 30a–e. By rotating the support structure 32 around the axis 70, an archer can set the bow sight 12 such that when that archer shoots, the vertical pins 30a–e all appear in a single line as viewed from the archer when shooting the bow.
The torque adjustment system of sight 12 includes an upper sleeved arm 74 and a lower sleeved arm 76. A sleeve member 72 is rotationally connected to the support structure 32 along axis 70 by a first torque adjustment screw 71 and a second torque adjustment screw 73, both which extend linearly along the axis 70. An archer can loosen torque adjustment screws 71, 73 with an Allen wrench (or by other means depending on the type of screw used) and then make the rotational adjustment between the sleeve member 72 and the support structure 32 as is necessary to bring the vertical pins 30a–e into vertical alignment as viewed from the shooting position. Once the correct rotational position is achieved, torque adjustment screws 71, 73 are tightened to prevent the sleeve member 72 and support structure 32 from rotating relative to one another.
The attachment of sleeve member 72 and support structure 32 to the bow is now described. The sleeve member 72 includes a double dove tail portion 80 that is received by a double dove tail recess in horizontal bar 82. A screw 85 allows for tightening and loosening of the sliding interaction between the double dove tail 80 and the double dove tail recess in the horizontal bar 82. The vertical position of sleeve member 72 can therefore be adjusted relative to horizontal bar 82. The horizontal bar 82 is received by an extender member 84 that has one end with an adjustable jaw 86 for holding and supporting horizontal bar 82. The jaw 86 is adjustable via screw 88. Thus, the position of horizontal bar 82 can be adjusted horizontally, as viewed from the archer in the shooting position.
The extender member 84 is releasably and adjustably connected to base 90. Extender 84 has a double dove tail 92 that is received by the double dove tail recess 94 of base 90. Therefore, extender 84 is slidably received by base 90 such that base 90 and extender 84 can be horizontally moved relative to one another toward and away from the archer.
Referring now to
In a preferred embodiment, sleeve member 72, horizontal bar 82, extender 84, base 90, and adjustment knob 98 are made of aluminum.
During shooting of the bow, when the string on the bow is released, a significant vibration is created. In order to enhance performance of the bow, it is desired to reduce these vibrations. In another aspect of the invention, dampeners are provided on the bow site. A dampener includes at least some material that is softer than the material that makes up the part of the bow sight to which the device is directly attached, such that the device at least partially absorbs the vibrations caused by the release of the bow string when shooting an arrow. Dampeners may be placed in the support structure itself or in any of the various members that connect the support structure to the bow.
Referring to
Also shown in
While particular positions of the dampeners 120, 130 connected to the support structure 32 have been provided in the drawings, it is noted that dampeners may be connected to the support structure 32 in many different locations. For example, a dampener could be set in a recess (not shown) in the support structure 32.
Variations of pin configurations are illustrated in
Referring to
A variation is shown in
Still another variation is shown in
Yet another embodiment of the invention is illustrate in
Support structure 610 is removably attached to mounting base 690 via mounting regions such as apertures 612, 614 and 616 therein. Mounting apertures 612, 614, 616 are configured for attachment to mounting base 690, particularly, to arm 695 of base 690. In
When in the first position, as illustrated in
When pins 630a–c are vertically positioned, as when in the first and third positions, pins 630a–c are preferably aligned in a plane or in a single line, when viewed by the archer in a shooting position. However, when pins 630a–c are horizontally positioned, as when in the second position, pins 630a–c are not aligned in a single line, but are spaced so that the archer views individual pins when shooting. To accommodate the two pin positions, aligned and unaligned, support structure 610 includes a pin alignment system, such as slots 640a, 640b, 640c therein, one for each pin 630a, 630b, 630c. Each pin 630a–c is movable within slot 640a–c, to allow the pins to be moved from being aligned to unaligned, and vice versa. Additionally, the extension of pins 630a–c from support structure 610 (e.g., the height of pins 630a–c) can also be adjusted via slots 640a–c. The geared or camming systems described above, for moving and locking pins 630a–c, in addition to conventional systems for releasably securing pins 630a–c within slots 640a–c, can be used.
In some designs, one of pins 630a–c may be non-movably attached to support structure 610 and the other pins 630a–c are movable in respect to support structure 610 and the fixed pin.
It is noted that these slots 640a–c can be use achieve the same purpose as the torque adjustment feature described above, which utilized axis 70 for pivoting the support structure. Additionally, in some embodiments, it may be desired to use only a single pin, whether vertical or horizontal. Slots 640a–c can be constructed to allow for removal of pins 630a–c from sight 600.
This embodiment of the invention provides a bow sight that can be changed back and forth from a sight having a plurality of vertical pins to a sight having a plurality of horizontal pins, thus, allowing greater flexibility for the archer.
The foregoing description of the preferred embodiment of the invention has been presented for the purposes of illustration and description. It is not intended to be exhaustive or to limit the invention to the precise form disclosed. Many modifications and variations are possible in light of the above teaching. It is intended that the scope of the invention be limited not by this detailed description but rather by the claims appended hereto.
This application is a continuation-in-part application of U.S. patent application Ser. No. 10/196,333 filed Jul. 16, 2002 U.S. Pat. No. 6,892,462, which is a continuation application of U.S. patent application Ser. No. 09/607,243, filed Jun. 30, 2000, now U.S. Pat. No. 6,418,633.
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Number | Date | Country | |
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20030208916 A1 | Nov 2003 | US |
Number | Date | Country | |
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Parent | 09607243 | Jun 2000 | US |
Child | 10196333 | US |
Number | Date | Country | |
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Parent | 10196333 | Jul 2002 | US |
Child | 10406733 | US |