CN105378423B - ballistic arrow - Google Patents

Abstract

A hunting arrow includes an arrow shaft having a front end and a rear end. The hunting arrow has at least one leaf attached to the arrow shaft and having a closed position and at least one open position. The at least one leaf is substantially flush with the arrow shaft when in the closed position and extends radially outward from the arrow shaft when in the open position. In addition, the hunting arrow has an arrow tip attached to the front end of the arrow shaft and can be longitudinally moved toward or away from the arrow shaft. The arrow tip is operably engaged with the at least one leaf so that the arrow tip opens or closes the at least one leaf by moving relative to the arrow shaft.

Description

ballistic arrow

cross reference

This application claims the benefit of a continuation-in-part of U.S. Patent Application Serial No. 13/858,160, filed April 8, 2013, which is priority to U.S. Patent Application Serial No. 14/201,182, filed March 7, 2014, and claims Priority of Provisional Patent Application No. 61/810,530, filed April 10, 2013, and Provisional Patent Application No. 61/921,570, filed December 30, 2013. The entire content of the aforementioned application is hereby incorporated by reference.

technical field

The present invention generally relates to arrows for hunting. In particular, the invention relates to (a) hunting arrows having leaves that can deploy or split into multiple parts upon impact with a target; and (b) hunting devices that extend the shaft of the arrow to allow the leaves to deploy from the shaft; and (c) A hunting device having lobes coupled to and deploying from a shaft.

Background technique

Conventional arrows rely primarily on the tip of the arrow to cut into the target, penetrate and exit the target without considering the arrow or the arrow itself as an integral cutting device. These conventional arrows generally include an arrow shaft with replaceable arrow heads. In summary, arrow head designs are limited to a small broad head for improved flight, and a single size cutting angle and final cutting diameter at the tip. In the case of a mechanical device, since the leaf is set close to the target's initial point of contact, it will generally rely on its ability to open in a relatively short period of time. Furthermore, the relative density at the point of impact can vary greatly (eg, initial contact with an animal can strike soft tissue or dense bone). Conventional designs often do not adequately address these considerations, which can affect their reliability. Impact surfaces also affect the ability of the mechanical blade and associated mechanisms to deploy effectively. Due to efficiency losses, mechanical tips of conventional arrowheads can absorb a disproportionate amount of kinetic energy that could otherwise be transferred to the target. Additionally, it is difficult to design a tip that opens inside the target to most effectively damage vital organs.

Limited to tip considerations, conventional designs are limited in their overall weight and length due to various conflicting design considerations. For example, since the tip of the arrow is arranged at the front of the arrow, it must be arranged in front of the arrow rest and the bow handle, and thus it is necessary to keep the weight of the arrow part light and the length of the arrow part short. Due to these limitations, the arrowhead design must include shorter lobes so that the arrow's flight path and speed are not adversely affected. Thus, conventional arrowheads are limited in length and weight, preventing their adoption of large blades for high-speed bows and crossbows, and further limiting their choice to use an appropriate combination of fixed-type and mechanical-type designs. Finally, conventional tips are generally limited to a single device type and cannot accommodate the weight required by the overall overall solution.

Furthermore, even the development of modern high-speed and compound bows, spearguns, and crossbows has seen little design change. Existing designs do not provide the archer with the ability to adjust the blade angle on the arrowhead to compensate for changes in bow poundage or to specifically target prey. Furthermore, most current arrowhead designs do not provide for a change in lobe angle upon target penetration that would optimize arrow performance for targets with different densities.

Furthermore, the safety issue of protecting the archer's hands and arms while drawing and firing the arrow is not addressed. Regular arrow rests only have one size, holding arrows at one point in time and one place. The critical space between the string and the bowhandle, often referred to as the "string height", is usually kept open by conventional arrow rests, so that the archer is not protected in this space. Furthermore, conventionally known arrowheads generally have leaves fixed in an open position, and lack a safety locking system for restraining the leaves in a closed position during pull and fire cycles.

Modern bows, spearguns, and crossbows have achieved levels of speed and power that were not possible years ago. The kinetic energy of the arrow in flight has almost doubled. Many modern arrows are designed to allow "piercing" shots, where the arrow passes through the target completely and rapidly. As the arrow continues to move through and beyond the target, the arrow does not transfer 100% of its kinetic energy to the target. Any kinetic energy not delivered to the target is wasted.

Therefore, there is a need for a hunting arrow that can apply maximum kinetic energy to the target. The design may include a device that releases the launch properties that first shatter the surface of the target, and an auxiliary device that opens inside the target or at a distance after impact with the target.

Additionally, the design may include an arrow that deploys the appropriate number of lobes at the appropriate leaf angle, or that deploys multiple lobes depending on the density of targets at the point of impact. The design may also include a safety system that locks the deployable leaf or multiple arrow shafts in place during the draw and launch cycle, and includes an arrow rest and/or bow that protects the archer's arms and hands during the draw and launch cycle shelf.

Contents of the invention

The present invention may be embodied as a hunting arrow comprising a shaft having a front end and a rear end, and at least one fletch blade attached to the shaft and having a closed position and at least one open position, wherein the at least one fletch blade is in the closed position is substantially flush with the arrow shaft when in the open position and extends radially outward from the arrow shaft when in the open position. The arrow also includes an arrow tip attached to the forward end of the arrow shaft and capable of moving longitudinally toward or away from the arrow shaft, wherein the arrow tip is operatively engaged with at least one arrow blade such that movement of the arrow tip relative to the arrow shaft Opening and closing the at least one fletch.

The invention may also be embodied as a hunting arrow comprising an arrow shaft divisible with respect to a longitudinal plane of the shaft into two substantially equal halves, wherein the two substantially identical halves are releasably connected, and At least one trigger leaf is attached to at least one of the arrow shaft halves and is configured to pivot in a direction perpendicular to the longitudinal plane separating the shafts, the at least one trigger leaf having a target contact end and an opposing shaft contact end. Preferably, at least one trigger leaf is configured and designed such that when the target contact end contacts the target, the trigger leaf pivots such that the opposing shaft contact end contacts and applies force to the unattached arrow shaft half. force, thereby separating the shaft halves.

Another embodiment of the present invention may also be a hunting arrow assembly including a connector configured to hold at least two separate arrows so that the two separate arrows are releasably connected, and including at least one trigger A trigger leaf attached to at least one arrow and configured to pivot about its point of attachment to the arrow, the at least one trigger leaf having a target contact end and an opposing arrow contact end. Preferably, the at least one trigger leaf is configured and designed such that when the target contact end is in contact with the target, the trigger leaf pivots such that the opposing arrow contact end is held by the connector and the at least one trigger leaf is not attached. The connected arrows contact and apply a force thereto, thereby separating at least one arrow from the connector.

The present invention may also be embodied as a telescoping arrow for hunting comprising an arrow shaft having an inner shaft portion substantially radially surrounded by the outer shaft portion and an outer shaft portion with a front end and arranged relative to the outer shaft portion. The shaft portion moves longitudinally, and includes a spring attached to the inner shaft portion and the outer shaft portion, the spring being arranged and designed such that at its intermediate position, the inner shaft portion extends at least partially out from the front end of the outer shaft portion . The telescoping arrow also includes means for maintaining the relative position of the inner and outer shaft parts, so that the inner shaft part is disposed substantially in the outer shaft part, and the spring is compressed between the inner and outer shaft parts, the spring on the inner shaft part Apply force in a direction toward the front end of the outer shaft portion. Preferably, further compression of the inner shaft portion relative to the outer shaft portion releases the means for maintaining the relative position of the shaft portions such that the spring pushes the inner shaft portion at least partially outwardly from the forward end of the outer shaft portion.

Furthermore, the present invention may also be embodied as a hunting arrow having a hollow shaft defining an interior space and having a front shaft section and a detachable rear shaft section, wherein the front and rear shaft sections are releasably connected, and have respectively Attached to at least one shaft separation protrusion of the front shaft section and the rear shaft section, the shaft separation protrusions are disposed adjacent to each other and substantially block the inner space of the arrow shaft. The arrow also has an arrow point attached to the front end of the front axle section and capable of moving longitudinally toward or away from the front axle section, and a cam disposed in the interior space of the front axle section and attached to the front end of the front axle section. The arrow tip, so that the movement of the cam relative to the arrow shaft corresponds to the movement of the arrow tip relative to the front shaft segment. Thus, when the arrow tip is compressed relative to the front axle section, the cam moves towards the rear axle section and pushes against the axle release projection, thereby pushing the axle release projection apart and separating the front axle section from the rear axle section.

Additionally, the invention may also be implemented as a hunting arrow having a rear end and a front end, which may include an insert connection for attachment to an extension shaft. The extension shaft may include at least one blade coupled to the shaft such that the at least one blade can be in a closed position and at least one open position. The at least one dart blade may be flush or substantially flush with the vertical tab trigger blade segment when in the closed position. For example, the at least one fletch can be mounted flush on the extension shaft so as not to obstruct flight, and can have a small vertical extension or tab to aid in deployment. The extension or tab may further add support or stability to the at least one blade when the at least one blade is in the open position. Additionally, the tabs can be used to prevent the arrow shaft from being pulled back too far (eg, so that the tabs prevent the archer from moving past the arrow rest on the bow when pulling the arrow back before shooting). Additionally, the at least one dart is extendable outwardly from the extension shaft when in the open position.

The leaves inside the shaft can also be held by a cassette which can include a rear beveled contact surface to help open the leaves and set the proper angle. Additionally, the leaf may include one or more slots so that the leaf can slide from a closed position to an open position and vice versa. The extension shaft may further include a fixed arrow tip broad head and/or a channeled broad head with a sliding tip that moves longitudinally toward or away from the arrow shaft, wherein the adjustable sliding tip and connecting pushrod can be operatively At least one fletcher is engaged such that movement of the sliding tip and connecting rod opens and closes the at least one fletcher.

With both a properly sized cutting tip and a mechanically openable leaf housed in the extension shaft, this design can take advantage of the deceleration of the extension shaft and loss of momentum upon impact with the target to help the auxiliary leaf inside the extension shaft open. The combination of these devices along the extended arrow axis may allow proper calibration (eg, in terms of leaf size, angle, timing of deployment, etc.) for optimal kinetic energy delivery for a given target at a specific distance.

Description of drawings

The present invention will be more fully understood with reference to the accompanying drawings and through the following detailed description of the invention, in which:

Figure 1A is a cross-sectional view of an arrow with a blade in the shaft according to an embodiment of the present invention;

FIG. 1B is a cross-sectional view of the arrow of FIG. 1A and shows how to adjust the tension of the arrow tip assembly;

1C is a cross-sectional view of the arrow of FIGS. 1A and 1B and shows the blade locking mechanism of the notch lock assembly engaged with the blade to hold the blade in its closed position;

FIG. 1D is a cross-sectional view of the arrow of FIGS. 1A-1C and shows the fletch opening and closing as the tip of the arrow moves inwardly and outwardly relative to the arrow shaft;

2 is an enlarged cross-sectional view of an arrow tip assembly according to an embodiment of the present invention;

3A is an enlarged cross-sectional view of a fletch according to one embodiment of the present invention, wherein the fletch is attached to the shaft by two pins and is in an open position relative to the shaft;

Figure 3B is an enlarged cross-sectional view of a fletch according to one embodiment of the present invention, wherein the fletch is attached to the shaft by two pins and is in a closed position relative to the shaft;

4A is an enlarged cross-sectional view of a fletch blade attached to the shaft by a pin and in an open position relative to the shaft, according to an embodiment of the present invention;

Figure 4B is an enlarged cross-sectional view of a fletch according to one embodiment of the present invention, wherein the fletch is attached to the shaft by a pin and is in a closed position relative to the shaft;

Figure 5A is an enlarged cross-sectional view of a fletch blade attached to the shaft by a pin and connected by a rod to the cam of the arrow tip assembly in an open position relative to the shaft in accordance with one embodiment of the present invention Location;

Figure 5B is an enlarged cross-sectional view of an arrow blade attached to the shaft by a pin and connected by a rod to the cam of the arrow tip assembly in a closed position relative to the shaft in accordance with one embodiment of the present invention Location;

6A is an enlarged cross-sectional view of a fletch blade attached to the arrow shaft by two pins, in the open position, and through the end of the tip shaft attached to the arrow tip assembly, according to one embodiment of the present invention. The internal worm gear is opened and closed;

6B is an enlarged cross-sectional view of a fletch blade attached to the shaft by two pins in a partially open or neutral position, and with the tip attached to the fletch tip assembly in accordance with one embodiment of the present invention. The worm wheel at the end of the shaft opens and closes;

6C is an enlarged cross-sectional view of a fletch blade attached to the arrow shaft by two pins, in the closed position, and by the end of the tip shaft attached to the arrow tip assembly, in accordance with one embodiment of the present invention. The internal worm gear is opened and closed;

7A is an enlarged cross-sectional view of a fletch attached to the shaft by a pin, in an open position, and secured by threads simultaneously engaging threads on each blade, according to an embodiment of the present invention. gears open and close;

Figure 7B is an enlarged cross-sectional view of a fletch according to one embodiment of the present invention, wherein the fletch is attached to the shaft by a pin in a partially open or neutral position and is simultaneously threaded by threads on each blade; Opens and closes with engaged fixed gears;

7C is an enlarged cross-sectional view of a fletch blade attached to the shaft by a pin, in a closed position, and secured by threads simultaneously engaging threads on each blade, according to an embodiment of the present invention. gears open and close;

Figure 8A is a cross-sectional view of another embodiment of an arrow of the present invention with the blade in the shaft;

8B is a cross-sectional view of the arrow shown in FIG. 8A, showing how the tension of the arrow tip assembly is adjusted, and showing the blade lock mechanism of the notch lock assembly engaged with the arrow blade;

Fig. 8C is a cross-sectional view of the arrow of Figs. 8A and 8B and shows that the arrow blade begins to open from the shaft as the arrow tip is compressed relative to the shaft;

Figure 8D is a cross-sectional view of the arrow of Figures 8A-8C and showing the arrow blade in a partially open or neutral position;

Figure 8E is a cross-sectional view of the arrow of Figures 8A-8D and showing the arrow blade in a fully open position;

Figure 8F is a cross-sectional view of another embodiment of an arrow of the present invention with the blade in the shaft and the shaft collar in the first position;

8G is a cross-sectional view of another embodiment of an arrow of the present invention with the arrow blade in the shaft and the shaft collar in a second position;

Figure 8H is a cross-sectional view of another embodiment of an arrow of the present invention with the arrow blade in the shaft and the shaft collar in a third position;

Figure 9A is a cross-sectional view of another embodiment of an arrow of the present invention wherein the arrow blade is mounted on the rear of the arrow shaft and facing forward;

9B is a cross-sectional view of the arrow of FIG. 9A and shows the arrow blade in a partially deployed position with the arrow tip compressed relative to the arrow shaft;

Figure 9C is a cross-sectional view of the arrow of Figures 9A and 9B and showing the arrow blade in a fully deployed position;

Figure 10A is a perspective view of a split shaft arrow according to an embodiment of the invention;

Figure 10B is a perspective view of the split shaft arrow of Figure 10A after the shaft has been split into two parts;

Figure 10C is a perspective view of the split-shaft arrow of Figures 10A and 10B after the shaft has been split into two parts, and shows the notch locking assembly that helps connect the shaft parts during bowing and firing of the arrow;

11A is a perspective view of connected arrows according to an embodiment of the invention;

Figure 11B is a cross-sectional view taken along line 11B-11B of the connecting arrow of Figure 11A;

Figure 11C is a cross-sectional view taken along the line 11C-11C of the connecting arrow of Figure 11A;

Figure 12A is a cross-sectional view of a telescoping arrow according to one embodiment of the present invention;

12B is a cross-sectional view of the telescoping arrow of FIG. 12A and shows the leaf locking mechanism engaged with the arrow blade and the notch engaged with the bowstring;

12C is a cross-sectional view of the telescoping arrow of FIGS. 12A-12B and shows the blade locking mechanism disengaging from the arrow blade during flight after the notch is detached from the bowstring;

12D is a cross-sectional view of the telescoping arrow of FIGS. 12A-12C and showing the inner shaft section extending outwardly from the outer shaft section with the arrow blade fully deployed;

Figure 12E is a cross-sectional view of the telescoping arrow of Figures 12A-12D and showing the arrow blade in a less open position;

Figure 12F is a cross-sectional view of the telescoping arrow of Figures 12A-12E, and shown still in a less open position;

Figure 13A is a cross-sectional view of a broken arrow according to an embodiment of the present invention;

Figure 13B is a cross-sectional view of the broken arrow of Figure 13A and shows the separation of the rear axle section from the front axle section;

Figure 14A is a perspective view of a safety stand according to an embodiment of the present invention;

Figure 14B is a partially expanded perspective view of the safety stand shown in Figure 14A, including three pins for supporting arrows;

Figure 14C is an end view of the safety bracket shown in Figures 14A and 14B;

Figure 15A is a cross-sectional view of an arrow according to an embodiment of the invention, and having a wire embedded in the shaft in place of the blade; and

Figure 15B is a cross-sectional view of the arrow of Figure 15A with the wires splaying outward from the arrow shaft;

Figure 16A is a cross-sectional view of a first embodiment of an arrow according to the present invention, with a fixed broad head and extension shaft, and with the leaves in a closed position;

16B is a cross-sectional view of the first embodiment of the arrow shown in FIG. 16A with a fixed broad head and extension shaft, and with the leaves in a partially deployed position, according to the present invention;

Figure 16C is a cross-sectional view of the first embodiment of the arrow shown in Figure 16A with a fixed broad head and extended shaft with the leaves in an open and locked position, according to the present invention;

Figure 17A is a cross-sectional view of a second embodiment of an arrow according to the present invention with the leaves having a channeled broad head and extending shaft in a closed position;

17B is a cross-sectional view of a second embodiment of the arrow shown in FIG. 17A with the leaf having a channeled broad head and extending shaft in a partially deployed position in accordance with the present invention;

17C is a cross-sectional view of the second embodiment of the arrow shown in FIG. 17A with the leaf having the broad head with channel and extending shaft in the open and locked position according to the present invention;

Figure 18 is an enlarged cross-sectional view according to the arrows of Figures 17A-17C, showing some features according to the present invention;

Figure 19 is an enlarged cross-sectional view of a third embodiment of an arrow according to the present invention having a channeled broad head, sliding tip, and extension shaft with its lobes in a forward open position.

detailed description

The above aspects, features and advantages will be further understood with reference to the following description of preferred embodiments and the accompanying drawings, wherein like reference numerals refer to like components. In the embodiments of the invention shown in the drawings, specific terminology is used for the sake of clarity. However, the invention is not intended to be limited to the specific terms so used, and it is to be understood that each specific term may include equivalents that operate in a similar manner to accomplish a similar purpose.

According to the present invention, a hunting arrow is provided. The hunting arrow may preferably comprise the same parts as known arrows, such as the arrow vane. However, for purposes of simplicity, not all features are shown in the drawings. A number of arrows are shown in the figures. For example, the invention includes an arrow that includes deployable blades or sharpened wires for hunting. Arrows are also available that can detach or split into multiple parts upon impact. Also provided is an arrow comprising a smaller arrow or arrow shaft to spread the leaves. Additionally, an integrated safety system is disclosed that locks the leaf in place when the arrow is resting on the bow, and/or controls the force required to open the leaf at different angles. Additionally, a safety barrel or barrel attached to the bow is disclosed. The safety barrel provides a passage for the arrow to pass when firing to protect the archer's arms and hands by providing a physical barrier between the arrow and the archer's arms and hands.

FIG. 1A shows a hunting arrow 2 with a long shaft 4 , a tip 6 and a nock 8 . An elongated fletch 10 is housed in the arrow 2, which may be positioned anywhere along the axis 4 of the arrow 2, and which is designed to remain substantially flush with the arrow shaft 4 during loading and firing of the arrow 2, and Once it collides with the target, it will expand outward from the arrow shaft 4. The position of the arrow blade 10 (flush with the shaft 4 or spread out) is controlled by the arrow tip assembly 12 and the notch lock assembly 14 .

Arrow point assembly 12 is shown in FIG. 2 and includes arrow point 6 , which may be a broad arrow point attached to point shaft 16 . The pointed shaft 16 passes through a tension lock insert assembly 18 which may have a rotating barrel 20 and a cover 22 . The cam 24 is attached to the end of the prong shaft 16 and may be integrally formed with the end of the prong shaft 16 . The rotating barrel 20 is rotatable circumferentially about its axis, but is fixed longitudinally relative to the arrow shaft 4 . Furthermore, a prong shaft flange 26 is attached to the prong shaft 16 inside the rotating barrel 20 so as to prevent the prong shaft 16 from moving longitudinally away from the rotating barrel 20 . The cap 22 is preferably in threaded engagement with the rotating barrel 20 so that the cap 22 moves longitudinally relative to the rotating barrel 20 as the rotating barrel 20 rotates circumferentially. The cover 22 is preferably restrained from circumferential rotation by a pin 90 connecting the cover 22 to the arrow shaft 4 . The pin 90 may be an extension of the rotating barrel 20 as shown in FIG. 2 . The tension lock insert assembly 18 also has a compression spring 28 , or similar mechanism or material, disposed between the cover 22 and the flange 26 of the prong shaft 16 . The spring 28 is biased to push the flange 26 of the tip shaft 16 against the bottom of the rotating barrel 20, thereby maintaining the longitudinal position of the tip shaft 16 relative to the arrow shaft 4 (and through the extension of the arrow tip 6 and cam 24).

Referring back to FIGS. 1A-1D , dart 10 has a recess 30 designed to receive cam 24 at the end of tip shaft 16 . The recess 30 is formed such that the leaf 10 cannot rotate outwards when engaged with the cam 24 . Thus, the tension of the spring 28 maintains the position of the cam 24 relative to the arrow shaft 4, which in turn holds the leaf 10 in its closed position. In some embodiments, the cam 24 may have a recess that engages the blade 10 to retain the blade 10 in its closed position relative to the shaft 4 . In a preferred embodiment, the leaves are attached to the arrow shaft 4 by two pins 32 (as shown in Figures 3A and 3B). In another embodiment, the leaf may be attached to the arrow shaft 4 by only one pin 34 (as shown in Figures 4A and 4B). Alternatively, the dart 10 may be held in place by an "O" ring 36 or by other means such as plastic restraints or heat shrink tape.

In practice, arrows are fired towards a target, such as an animal. When the arrowhead 6 hits the target, the arrowhead is slowed down by the collision, while the rest of the arrow continues forward, propelled by its own momentum. Thus, upon impact, the arrow point 6 compresses inwardly towards the arrow shaft 4 in the direction D. As the arrow portion compresses inwardly, the prong shaft 16 and attached cam 24 are pushed inwardly relative to the arrow shaft 4 . The cam 24 separates from the recess 30 of the blade 10 and moves inwardly therebetween, thereby pushing the blade radially outward from the side of the arrow shaft 4, as shown in FIG. 1D . Preferably, the blade 10 includes a plurality of additional recesses 38 at various locations along the inside of the blade 10 and configured to engage the cam 24 as it moves inwardly relative to the shaft 4, thereby turning the Arrow blades 10 are locked in the open position.

The inner surface 40 of the blade 10 is preferably tapered so that there is an inverse relationship between the distance that the cam 24 moves relative to the blade 10 and the radial distance that the blade 10 opens from the side of the arrow shaft 4 . In other words, when the cam 24 is compressed only a short distance from the recess 30 , the arrow blade 10 opens to a wide angle relative to the arrow shaft 4 . Conversely, when the cam 24 is compressed a greater distance from the recess 30, the blade 10 opens to a smaller angle. Thus, when the arrow point 6 hits a soft target, such as the flesh behind the shoulder of an animal, the arrow point 6 and accordingly the cam 24 is compressed only a short distance, pushing the arrow blade 10 wider from the arrow shaft 4. Open. However, when the arrowhead hits a hard target, such as an animal bone, then the arrowhead 6 and accordingly the cam 24 is compressed a longer distance relative to the arrow shaft 4, thereby opening the arrow blade 10 to a smaller angle.

As shown in FIG. 1B , the rotating barrel 20 can be rotated as indicated by arrow A, thereby adjusting the longitudinal position of the cover 22 relative to the rotating barrel 20 . Changing the position of the cover 22 increases or shortens the distance between the cover 22 and the flange 26 of the pointed shaft 16 , thereby compressing or loosening the compression spring 28 . As mentioned above, the compression spring 28 is biased to hold the arrow tip 6 at a predetermined position in front of the arrow shaft 4 . As the spring is compressed by the cover 22, the biasing force on the flange 26 increases, thereby increasing the resistance to compression of the arrow tip 6 relative to the arrow shaft 4. As mentioned above, the distance by which the arrow tip 6 is compressed relative to the arrow shaft 4 is proportional to the angle of the arrow blade 10 relative to the arrow shaft 4 . Thus, the rotation of the barrel 20 allows adjusting the compressibility of the arrow tip 6 and the relative angle of protrusion of the arrow blade 10 from the arrow shaft 4 according to the requirements of the archer.

Referring specifically to FIG. 1C , the notch lock assembly 14 of the present invention is shown in a locked position. The notch lock assembly 14 includes a notch 8 , a notch lock shaft 42 having a notch flange 44 , a notch spring 46 (or other similar mechanism or material), and a leaf lock mechanism 48 . The notch spring 46 and notch flange 44 are housed in a segregated opening 50 at the notch end of the arrow shaft 4 . This isolated space 50 is bounded by a first partition 52 of the arrow shaft and an end 54 of the arrow shaft. The notch spring preferably engages the first bulkhead 52 and the notch flange 44 , and the notch flange is disposed between the notch spring 46 and the end 54 of the arrow shaft.

When the arrow 2 is separated from the bowstring, the notch locking mechanism 14 is in the unlocked position, as shown in Figures 1A, 1B and 1D. When in the unlocked position, the notch spring 46 is biased to urge the notch flange 44 into contact with the end 54 of the arrow shaft 4 . By placing the notch flange 44 in such a way that the notch 8 is separated from the end of the arrow shaft 4 with the opening 56 disposed therebetween. The length of the notch lock shaft 42 is such that the blade lock mechanism 48 does not block radial movement of the arrow blade 10 relative to the arrow shaft 4 when the notch flange is in contact with the end 54 of the arrow shaft 4 .

However, as shown in Figure 1C, the notch 8 is compressed into engagement with the end of the arrow shaft 4 by engagement with the bowstring. The notch lock shaft 42 , which is connected to the notch 8 and notch flange 44 and notch spring 46 , is correspondingly compressed inwardly towards the arrow blade 10 . This compression drives the blade lock mechanism 48 at the end of the notch lock shaft 42 into locking engagement with the lock recess 58 on the fletcher blade 10 . Therefore, the arrow blade 10 is restrained from opening, and the arrow 2 rests on the bowstring. Once the arrow is released from the bowstring, the notch spring 46 pushes the notch flange against the end 54 of the arrow shaft 4 again, disengaging the blade locking mechanism 48 from the locking notch 58 on the arrow blade 10 . Then, as described above, when the arrow hits the target, the blades 10 may open.

In some embodiments, the notch lock assembly 14 may include a notch lock pin 5, as shown in FIG. 1C. The notch lock pin is arranged to lock the locking mechanism 48 to the locking notch 58 on the arrow blade 10 even if the arrow is not on the bowstring, thereby preventing the blade 10 from unfolding during arrow handling. In addition, it should be understood that a notch lock assembly may be used with any of the arrows described herein to hold the deployable leaves in a closed position, or to hold components of the arrow shaft or multiple shafts in a connected configuration. However, for purposes of simplicity, notch lock assemblies are not shown in all figures.

FIGS. 3A and 3B show enlarged views of the blades 10 of the arrow of FIGS. 1A-1D , where each blade 10 is attached to the arrow shaft 4 by a separate pin 32 . In this configuration, the tip shaft 16 passes between the dagger blades 10 substantially along the center of the shaft 4 . A pin 32 attaches the fletcher blade 10 to the shaft 4 at the side of the shaft. Thus, as the cam 24 moves forward and rearward relative to the inner surface 40 of the blade 10 , the blade is free to pivot relative to the pin 32 without interfering with the forward and rearward movement of the tip shaft 16 .

4A and 4B show further configurations for attaching the dagger blade 10 to the shaft 4 . In this configuration, both fletch blades 10 are attached to the arrow shaft 4 by a single pin 34 disposed at the center of the shaft. Tip shaft 16 receives pin 34 by defining an elongated pin opening 17 through at least a portion of tip shaft 16 . The elongated pin opening 17 is configured to accommodate the pin 34 to allow the tip shaft 16 to move forward and backward about the pin 34 even though the tip shaft 16 is substantially centered on the arrow shaft 4 . The opening 17 is at least long enough to allow the tip shaft 16 to move forward and rearward as desired, thereby urging the cam 24 into open and closed engagement with the inner surface 40 of the blade 10 . Thus, as the cam 24 moves rearward and forward relative to the inner surface 40 of the blade 10 , the blade is free to pivot about the pin 34 without affecting the rearward and forward movement of the tip shaft 16 .

Another configuration of fletch blade 10 is shown in FIGS. 5A and 5B . Similar to the fletch shown in FIGS. 4A and 4B , the fletch 10 of this configuration pivots about a single pin 34 . However, unlike previously disclosed fletch configurations, the fletch of FIGS. 5A and 5B does not have the cam 24 pushing the inner surface of the fletch 10 to open and close. Instead, a rod 41 connects the cam 24 to the rear end 11 of each fletcher blade 10 . The lever 41 is arranged such that the cam 24 moves towards the rear of the arrow shaft 4 and the arrow blade 10 opens. Conversely, as the cam 24 moves towards the arrow shaft 4, the arrow blade 10 closes. Thus, unlike what is shown in FIGS. 1A-1D , the radial distance that arrow blade 10 opens from arrow shaft 4 is not inversely proportional to the amount that arrow tip 6 compresses relative to arrow shaft 4 . Thus, when the arrow tip 6 hits a soft target, the arrow tip 6 and accordingly the cam 24 is only compressed a short distance, thereby opening the arrow blade 10 from the arrow shaft 4 only a short distance. However, when the arrow head hits a hard target, such as an animal bone, then the arrow tip 6 and the corresponding cam 24 are compressed a longer distance relative to the arrow shaft 4, thereby opening the arrow blade 10 for a longer distance.

6A-6C show another possible configuration of the arrow blade 10 relative to the arrow shaft 4 . In this configuration, the blade 10 is detachably attached to the shaft 4 by a pin 32, preferably directly or via the shaft flange. Furthermore, the tip shaft 16 is not attached to a cam, but to a threaded end 25 or a worm wheel. The threads of the threaded end 25 are configured to correspond with the threads 31 at the base of each fletcher blade 10 . As the tip shaft 16 moves towards the rear side of the arrow shaft 4, the threads of the threaded end 25 of the tip shaft 16 engage the threads 31 of the blade 31, thereby pushing the blade 10 to the open position. Conversely, as the tip shaft 16 moves towards the front side of the arrow shaft 4, the threads of the threaded end 25 of the tip shaft 16 engage the threads 31 of the blade 10 to urge the blade 10 towards the closed position.

7A-7C show a fletch 10 similar to that shown in FIGS. 6A-6C except that the fletch 10 is attached to the shaft 4 by a single pin 34 at the center of the shaft 4 . In this configuration, fletch 10 has threads 31 . A gear 27 is attached to the arrow shaft 4 such that the threads of the gear 27 engage the threads 31 of the arrow blade. Furthermore, the tip shaft 16 has at its end a grooved bar 29 with an internal female thread 33 configured to engage the threading of the gear 27 . In practice, as the tip shaft 16 moves towards the rear side of the arrow, the female thread 33 of the grooved bar 29 engages the thread of the gear 27 so that the gear 27 begins to rotate. As the gear 27 rotates, the threads of the gear 27 engage the threads 31 of the blade 10, causing the blade to open. Conversely, as the tip shaft 16 moves towards the front side of the arrow shaft 4, the female thread 33 of the grooved bar 29 engages the gear 27 and causes the gear 27 to rotate in the opposite direction, causing the arrow blade to close.

8A-8E illustrate another embodiment of a hunting arrow with deployable blades. In this embodiment, the arrow tip assembly 112 and notch lock assembly 114 are substantially similar to the embodiment shown in FIGS. 1A-1D . However, some of these embodiments differ in the fletch 110 . Whereas the blade 10 in the embodiment of FIGS. 1A-1D is attached to the shaft 4 by one or two pins substantially at a location near the cam 24, the blade 10 in the embodiment of FIGS. A single pin 134 provided at 124 is attached to arrow shaft 104 .

In practice, arrow tip 106 , with attached tip shaft 116 and cam 124 , compresses inwardly relative to arrow shaft 104 upon impact with a target. As it moves inwardly, the cam 124 pushes against the inner surface 140 of the blade 110 . The inner surface 140 of the blade is formed such that as the cam 124 is pushed against the inner surface, the blade 110 is urged radially outward from the arrow shaft 104 pivotally about the pin 134 . FIG. 8C shows that the arrow lobe 110 begins to open as the cam 124 pushes against the inner surface 140 of the lobe 110 . As seen from Figures 8D and 8E, once the vanes begin to open, even if the cam 124 stops driving the movement of the vane 110, it will continue until reaching the fully open position (as shown in Figure 8E). Continued opening of lobe 110 is caused by forces external to arrow tip assembly 112, such as arrow momentum and/or physical contact with the target.

Another difference between the embodiment of FIGS. 8A-8E and the embodiment of FIGS. 1A-1D is the shape of the leaf lock mechanism 148 of the notch lock assembly 114 . In the embodiment of FIGS. 8A-8E , the pivot end 160 has a locking recess 158 that aligns when the dart blade 110 is in the closed position. The leaf lock mechanism 148 is formed corresponding to the lock recess 158 so that when the leaf lock mechanism 148 is engaged with the lock recess 158 , the arrow blade 110 is restricted from being opened. As noted above, notch lock assembly 114 including leaf lock mechanism 148 is arranged and designed to lock arrow blade 110 in the closed position when arrow 102 is on the bowstring, but release the leaf when notch 108 is off the bowstring.

8F is a cross-sectional view of another embodiment of an arrow of the present invention with the arrow blade in the shaft and the shaft collar in a first position. 8G is a cross-sectional view of another embodiment of an arrow of the present invention with the blade in the shaft and the shaft collar in a second position. Figure 8H is a cross-sectional view of another embodiment of an arrow of the present invention with the blade in the shaft and the shaft collar in a third position. It is described here with reference to these drawings.

Figures 8F-8H show specific embodiments of ballistic arrows similar to the arrows shown in Figures 8A-8D, with several notable differences. First, the spring (eg, indicated at 28 in FIG. 1A ) can be omitted from these embodiments, and the tip 106 can be fixed to the shaft. Second, the shaft collar 150 can be at least partially coupled to the arrow shaft 104 such that the position of the shaft collar 150 can be adjusted axially along the length of the arrow shaft 104 (eg, by a sliding action).

The shaft collar 150 may include one or more shaft collar flanges 151 , which may include protrusions, flanges, ridges, etc. extending outwardly from the shaft collar 150 . In the example shown in FIGS. 8F-8H , for example, the shaft collar 150 may take the shape of an annular disk or a hollow cylinder, and the shaft collar flange 151 may include prongs extending linearly from a portion of the shaft collar 150 . Other shapes and designs of shaft collar 150 and shaft collar flange 151 are also contemplated.

Shaft collar 150 may be constructed of metal, such as steel, aluminum, etc., or may be formed of plastic or other composite material. Alternatively, shaft collar 150 may comprise wire or other flexible or lightweight material. Additionally, shaft collar 150 may include leaf actuator 152, which may include a wire, cord, or other lightweight type of material that may be used to actuate movement of arrow blade 110 from the open position to the closed position and vice versa.

Shaft collar 150 may be positioned anywhere along arrow shaft 104 and may be adjusted to slide on arrow shaft 104 to deploy arrow blade 110 . The shaft collar flange 151 may be adapted to extend beyond the outer diameter of the tip 106 so that when the tip 106 contacts the target, the shaft collar flange 151 may pass through a portion of the target beyond the outer diameter through which the tip 106 penetrates. The position of the shaft collar 150 relative to the arrow shaft 104 can affect when the arrow blade 110 deploys. For example, if the shaft collar 150 is positioned proximate to the tip 106 (eg, as shown in FIG. 8F ), the dart blades 110 may deploy upon impact or even immediately prior to impact. If shaft collar 150 is positioned farther rearward than tip 106 (eg, as shown in FIG. 8G ), dart blades 110 may deploy after tip 106 penetrates the target. This adjustability can be important, since the amount of kinetic energy dissipated ("KE") can be adjusted so that KE is dissipated in the target rather than on impact, making "small advances" in ballistics. in) and "large out" are important.

For a two-lobe configuration (as shown in FIGS. 8G and 8H ), leaf actuator 152 may be pulled through arrow 102 to deploy arrow blade 110 . Optionally, shaft collar 150 may employ one or more pins to slide open arrow blade 110 . Additionally, shaft collar 150 may include a wire or a roller to allow sliding open with less friction.

Blade 110 may be connected to shaft 104 by pin 134 . The leaves may be angled to provide a sliding surface for the shaft collar 150 when the leaves are in the closed position. As shaft collar flange 151 hits the target, shaft collar 151 may move away from tip 106 which in turn causes leaf actuator 152 to open arrow blade 110 (eg, as shown in FIG. 8H ).

Figures 9A-9C illustrate another embodiment of an arrow for hunting having a deployable blade 210, wherein when the blade 210 is fully deployed, it is in the opposite direction relative to the arrow shaft 204 to that described for the above embodiment. angle in the direction of . In the embodiment of FIGS. 9A-9C , arrow tip assembly 212 includes arrow tip 206 , tip shaft 216 , spring 228 (or similar mechanism or material), and blade release protrusion 224 . Arrow blade 210 may be positioned anywhere on arrow shaft 204 and includes an arrow engaging protrusion 230 configured to engage the blade release protrusion when arrow blade 210 is in the closed position against arrow shaft 204. 224 engagement. Also included is a flexible riser 262 disposed between arrow shaft 204 and arrow blade 210 and biased to urge arrow blade 210 radially outward from arrow shaft 204 . As with the embodiments described above, the spring 228 is biased to urge the arrow tip 206 away from the arrow shaft 204 by exerting a force on the end of the tip shaft 216 . This biasing force pushes the leaf release projection 224 into engagement with the arrow engagement projection 230 of the leaf 210 so that the leaf remains closed relative to the arrow shaft 204 .

In practice, when the arrow strikes a target, arrow tip 206 and tip shaft 216 are compressed inwardly toward arrow shaft 204 , thereby compressing spring 228 . As the tip shaft 216 moves inwardly relative to the arrow shaft 204, the leaf release protrusion 224 is released from the leaf's arrow engaging protrusion 230, as shown in FIG. 9B. Thereafter, the flexible risers 262 push the vanes radially inward to the open position, as shown in Figure 9C.

The embodiment of Figures 9A-9C may also include a notch lock assembly 214, similar to that of the embodiments described above. In this embodiment, blade locking mechanism 248 is configured to engage locking recess 258 when arrow 202 rests on the bowstring, and to release arrow blade 210 when the arrow is released from the bowstring.

Figures 10A-10C illustrate another arrow designed to split into two longitudinal arrow shaft sections 304, 364 upon contact with a target. To this end, the shaft of the arrow comprises two separate parts, which are preferably, though not necessarily, substantially symmetrical about the longitudinal plane of the arrow, and which are releasably attached to each other. The part may be attached by suitable means, for example by adhesive, tape, plastic restraint or heat shrink tape. Alternatively, or in addition to adhesive or tape, the shaft portions may be held together by a notch lock assembly 314, which will be described in more detail below. The tip of the arrow may preferably have two arrowhead portions 306 , 366 attached to the ends of the shaft portions 304 , 364 . A pair of trigger leaves 368 , 370 are pivotally mounted to the shaft portions 304 , 364 . One purpose of the trigger leaves 368, 370 is to split the arrow shaft into separate parts by impact with the target. For example, as shown in FIG. 10B, when the outer ends 372, 374 of the trigger leaves 368, 370 strike a target, the trigger leaves 368, 370 pivot so that the inner end of each trigger leaf pushes against its adjacent shaft part. Accordingly, the inner end of trigger leaf 368 pushes against shaft portion 364 and trigger leaf 370 pushes against shaft portion 304 . As the trigger leaves 368, 370 continue to pivot, the shaft portions 304, 364 are pushed apart. The position of the trigger leaves 368, 370 relative to the arrow shaft can be changed to vary the timing of the splitting of the arrow shaft 304,364.

Referring to FIG. 10C , there is shown a notch lock assembly 314 similar to the notch lock assembly described above, with one difference being that the notch lock assembly 314 of this embodiment has a plurality of shaft locking mechanisms 348 configured to lock in the notch. Assembly 314 engages plurality of locking recesses 358 when in the locked position. The locking recess 358 may preferably be provided on the inner side of the arrow shaft portion 304 , 364 . Thus, when the notch lock assembly is in its locked position, the arrow shaft portions cannot be separated. The notch lock assembly also includes notch 308 , notch lock shaft 335 , notch flange (not shown), and notch spring 346 as disclosed. As described above with reference to the notch lock assemblies 214, 114 and 14, these elements cooperate with the shaft lock mechanism 348 and the lock recess 358 to ensure that the arrow shaft portions 304, 364 do not separate when the arrow is resting on the bowstring, but The shaft portions 304, 364 can be separated as desired upon bowstring release. In one embodiment, the notch lock assembly can be separated and discarded when the arrow shaft is separated into separate parts.

In alternative embodiments, arrow shaft portions 304 , 364 may separate when arrow locking mechanism 348 is disengaged from locking recess 358 without being actuated by trigger leaves 368 , 370 . In this embodiment, the shaft portions 302, 364 may preferably separate while the arrow is in flight and before striking the target.

In one embodiment, it is contemplated that deployable vanes as shown and described with reference to FIGS. 1A-9C may be included in each shaft portion 304 , 364 . Additionally, it is understood that the edges 376, 378 of the trigger leaves 368, 370 and the edges of the arrow shaft portions 304, 364 may be sharpened to provide an increased number of cutting surfaces when the arrow strikes a target.

The arrow portion 402 of FIGS. 11A-11C is similar to that of FIGS. 10A-10C except that instead of a single arrow with a separable shaft portion, the arrow of FIGS. 11A-11C has two separate but complete arrow shafts 404 connected by 480 pieces tied together. A cross-sectional view of this configuration is shown in FIG. 11B . A pair of trigger leaves 468, 470 are pivotally mounted to the arrow shaft 404, one trigger leaf each mounted on each shaft. One purpose of the trigger leaves 468, 470 is to separate the shafts from each other and from the connector 480 upon impact with a target. For example, when the outer ends 472 , 474 of the trigger leaves 468 , 470 strike a target, the trigger leaves 468 , 470 pivot such that the inner ends of each trigger leaf push against its adjacent arrow shaft 404 . As the trigger leaves 468, 470 continue to pivot, the arrow shaft 404 is urged to disengage from the link 480 and from each other. Additionally, it is understood that the edges 476, 478 of the trigger leaves 368, 370 may be sharpened to provide an increased number of cutting surfaces when the arrow strikes a target. Additionally, an expandable blade 410 of an arrow as described above with respect to FIGS. 1A-1D may be embedded in each arrow shaft 404 .

The trigger leaf may be positioned anywhere along the longitudinal length of the arrow shaft 404 . Since the trigger leaves 468, 470 do not begin to pivot until the arrow hits the target, the distance between the tip 416 of the arrow shaft 404 and the trigger leaves 468, 470 determines how quickly the arrow shaft 404 separates after hitting the target. For example, if the trigger leaves 468, 470 are positioned close to the arrow tip 416, as shown in FIG. 11A, they will hit the target and begin to separate shortly after the arrow tip 416 strikes the target. Alternatively, if the trigger leaf 468, 470 is positioned further back toward the notch end of the arrow, it will not hit the target and begin to separate until further rearward that the arrow tip 416 has penetrated the target a predetermined amount.

Referring to FIG. 11C , there is shown a notch lock assembly 314 and arrow blade similar to that described above with reference to FIGS. 1A-1D . In the embodiment shown in FIGS. 11A-11C , notch 408 , notch locking flange 444 , and notch spring 446 are substantially identical to their counterparts shown in FIGS. 1A-1D (ie, notch 8 , notch locking Flange 44 and notch spring 46) are similar. However, the arrows of FIGS. 11A-11C have a pair of notch locking shafts 442 , one for each separate arrow shaft 404 , as compared to the single notch locking shaft described above. Each notch lock shaft 442 preferably guides a leaf lock mechanism 448 that is configured to engage a lock notch 458 of an arrow blade 410 . Arrow shaft 404 includes arrow tip assembly 412 and arrow blade 410, which are substantially similar to those described above with respect to FIGS. 1A-9C. Accordingly, the arrow blade 410 is in operative communication with the arrow tip 416 such that it expands radially outward from the arrow shaft 404 when the arrow tip 416 strikes a target.

Similar to the embodiment shown in FIGS. 10A-10C , the arrow shaft 404 can be disengaged when the shaft locking mechanism 348 is disengaged from the locking recess 358 without being pushed by the trigger leaves 468 , 470 . In this embodiment, the shaft 404 may preferably be detached while the arrow is in flight before striking the target.

12A-12F illustrate telescoping arrows in accordance with the present invention. When a telescoping arrow strikes a target, the front of the arrow expands, or telescopes, thereby extending the length of the arrow. Additionally, fletch blades 510 extend from the shaft of the arrow. Each of these actions preferably occurs simultaneously to maximize damage to the target.

With regard to arrow telescoping, the shaft of arrow 504 includes an outer shaft portion 582 and an inner shaft portion 584 . Inner shaft portion 584 is surrounded by outer shaft portion 582 and is attached at its rear end to spring 528 (or similar mechanism or material). The spring 528 is attached at its end to the inner member 586 which is attached or integrally formed to the outer shaft portion 582 . In the neutral position, the spring 528 pushes a majority of the inner shaft portion 584 outward through the opening 588 to the front of the outer shaft portion 582 (as shown in FIGS. 12D-12F ).

In addition, the outer shaft portion 582 includes at least one inner shaft engaging protrusion 530, and the inner shaft portion 584 includes at least one corresponding inner shaft releasing protrusion 525, by which the inner shaft portion 584 engages with the inner shaft before colliding with an object. The engagement of the release protrusion 525 is fixed relative to the outer shaft portion 582 . When in a fixed position relative to the outer shaft portion 582, the inner shaft portion 584 is preferably in a substantially retracted position wherein the spring 528 is substantially compressed. In this compressed state, spring 528 stores potential energy.

Arrow point 506 attached to inner shaft portion 584 is pushed inwardly relative to the outer shaft by colliding with the target at least until inner shaft engagement protrusion 530 disengages from inner shaft release protrusion 525 . Thereafter, the spring stored potential energy of the compression spring is released, pushing the inner shaft portion 584 forward and away from the outer shaft portion 582 of the arrow.

Referring to Figures 12D-12F, there is shown an elongated fletcher blade 510 designed to remain substantially flush with the arrow shaft 504 during loading and firing of the arrow 502, and to flare outwardly from the arrow shaft 504 upon impact with a target . The position of fletcher blade 10 is controlled by the relative positions of inner shaft portion 584 and outer shaft portion 582 .

Inner shaft portion 584 includes camshaft 516 attached to inner shaft portion 584 . The camshaft 516 is correspondingly attached to a cam 524 . Blade 510 has a recess 530 designed to receive cam 524 . As the inner shaft portion 584 moves forward, as described above, the camshaft 516 and attached cam 524 also move forward. As it moves forward, the cam 524 contacts the inner surface 540 of the blade 510, thereby pushing the blade radially outward from the side of the arrow shaft 4, as shown in Figures 12D-12F. Preferably, blade 510 includes a plurality of distinct recesses 530 disposed at various locations along the inside of blade 510 and configured to engage cam 524 as it moves forward relative to shaft 504, thereby Lock the arrow blades 510 in the open position.

The inner surface 540 of the blade 510 is preferably tapered so that the further the cam 524 is moved relative to the blade 510 , the greater the radial distance that the blade 510 opens from the side of the shaft 504 . In other words, when cam 524 is moved forward only a short distance, arrow blade 510 opens a small angle relative to arrow shaft 504 . Conversely, as cam 524 is moved forward a greater distance, dart 510 opens to a greater angle. Thus, when the arrow tip 506 hits a soft target, the arrow tip 506 , and the corresponding cam 524 , encounters little resistance as it extends forward, thereby pushing the arrow blade 510 wider from the arrow shaft 504 . However, when the arrow head strikes a hard target, the arrow tip 506, and accordingly the cam 524, is restricted in its forward motion so that the arrow blade 510 opens to a smaller angle.

The arrows of Figures 12A-12F also include a notch locking assembly substantially similar to that described with reference to Figures 1A-1D. As noted above, one purpose of the notch lock assembly is to limit the expansion of the arrow blade 510 when the arrow is resting on the bowstring. In addition to the notch lock assembly, other means may be provided to restrict the opening of the dart 510, such as an "O" ring 536 (as shown in FIG. 12B ), or a heat shrink seal around the dagger 510 (not shown) .

Figures 13A and 13B show a hunting arrow with a shaft designed to split into a front section 604a and a rear section 604b upon impact with a target. As shown in Figure 13A, the two parts come together during stringing and firing of the arrow. Preferably, the arrow includes a notch lock assembly 614 that is substantially similar to other arrow designs disclosed above (eg, arrow notch lock system 14 of FIGS. 1A-1D ). The notch locking system 614 includes a shaft locking mechanism 648 (similar to the leaf locking mechanism 48 described above) configured to engage locking recesses 658 attached to the front and rear portions of the arrow shafts 604a, 604b. The engagement of the shaft locking mechanism 648 with the locking recess 658 prevents portions of the shafts 604a, 604b from separating during stringing and firing of the arrow. Other means for attaching the shaft sections together other than the notch lock assembly are, for example, o-rings (not shown), tape, adhesive, plastic restraints, or heat shrink tape.

The front portion of the shaft 604a is designed to separate from the rear portion of the shaft 604b when the arrow hits the target. To accomplish this, the arrows of FIGS. 13A and 13B are preferably hollow, defining an interior space 696 . The arrow also preferably includes an arrow tip assembly 612, which is substantially similar to the arrow tip assembly 12 shown in FIG. The front of the arrow shaft 604a, as shown in Figure 13A. Cam 624 is connected to arrow tip 606 via tip shaft 616 such that when arrow tip 606 is compressed relative to the arrow shaft, such as when arrow tip 606 strikes a target, cam 624 moves longitudinally toward the rear of shaft 604b. The inner space 686 of the arrow shaft includes shaft separation protrusions including a front shaft separation protrusion 692 and a rear shaft separation protrusion 694 . The separating protrusions 692 , 694 are arranged substantially adjacent to each other on the inner side of the shaft such that they at least partially fill a portion of the inner space 696 .

In practice, the arrow tip 606 is compressed relative to the arrow shaft 604 when the arrow strikes the target. Thus, the cam 624 is pushed back through the interior space 696 of the shaft and into contact with the shaft separation protrusions 692 , 694 . The diameter of the cam 624 is larger than the space between the shaft separation protrusions 692, 694 so that as the cam passes between the shaft separation protrusions 692, 694, the rear portion of the shaft 604b is pushed away from the front portion of the shaft 604a. Thus, as shown in Figure 13B, the arrow is divided into two separate parts. In a preferred embodiment, the front edge 640 of the rear portion of the shaft 604b is sharpened to increase the amount of damage caused when the rear portion of the shaft 604b strikes a target. Thus, for example, deployable arrow blades, similar to the embodiment of FIGS. 1A-1D , may be embedded in one or both portions of the arrow shaft 604a, 604b.

Figures 14A-14C illustrate a safety bracket 701 that may be attached to a bow (not shown) to protect the archer from injury while firing an arrow. The safety stand preferably includes a protective housing 709 and an attachment portion 707, as shown in Figure 14B, which is detachable from the remainder of the safety stand. A protective casing substantially surrounds the arrow channel 711 . Preferably, at least a portion of the inside of the housing 709 includes an arrow holder 715 (as shown in Figures 14B and 14C). The arrow holder may have a brush 713 (or similar material) on its end.

Safety bracket 701 may be attached to the bow by inserting fastener 790 through holes 703 , 705 . The holes 703, 705 are preferably elongated to allow adjustment of the safety bracket 701 relative to the bow according to the archer's needs or preferences. For example, elongated hole 703 may allow adjustment of safety bracket 701 toward or away from the bow, and hole 705 may allow adjustment of safety bracket 701 between left and right sides of the bow handle. As shown in the exploded view of FIG. 14B , the elongated holes 703 , 705 of the safety bracket can be inserted through the attachment portion 707 of the safety bracket, which is detachable from the rest of the safety bracket 707 .

In use, the safety bracket 701 is attached to the bow such that the arrow channel 711 of the safety bracket aligns with the correct position of the arrow relative to the bow when the arrow is resting on the bowstring. A protective housing 709 is placed between the bow and the archer's arms, wrists and hands. Arrows are held in place by brushes 713 (or similar material) and/or arrow holders 715 as they are inserted into the safety mount. When firing, the arrow passes through the safety bracket 701 and exits the bow. During this process, the protective casing 709 remains between the shooter and the arrow, thereby protecting the shooter from being injured by the arrow.

Figures 15A and 15B show an arrow having a deployable sharp wire 810 in the arrow shaft 804 in place of a deployable blade. The wire 810 is preferably fixed at the rear end to the arrow shaft 804 and attached at the front end to the movable cam 824 of the arrow tip assembly 812 . Arrow tip assembly 812 is substantially the same as arrow tip assembly 12 described above with reference to FIG. 2 . In practice, the cam 824 moves rearwardly relative to the arrow shaft 804 when the arrow tip 806 strikes a target and is thus compressed relative to the arrow shaft 804 . Since the rear end of the wire 810 is fixedly attached to the arrow shaft 804 and the front end is attached to the cam 824, the distance between the rear and front ends of the wire 810 is shortened. This causes the wire 801 to expand outward from the arrow shaft 804, as shown in Figure 15B.

Figure 16A is a cross-sectional view of a first embodiment of an arrow according to the present invention with a fixed broad head and an extended shaft with the leaves in a closed position. 16B is a cross-sectional view of a first embodiment of the arrow shown in FIG. 16A with a fixed broad head and an extended shaft with the leaves in a substantially deployed position, in accordance with the present invention. 16C is a cross-sectional view of the first embodiment of the arrow shown in FIG. 16A with a fixed broad head and extended shaft with the leaves in open and locked positions, according to the present invention. Description will be made in conjunction with these figures.

Arrow 900a may include shaft 901 , shaft connector 902 , and shaft insert 903 . Additionally, shaft 901 may include an insert, sleeve, etc. (not shown) that may be disposed within at least a portion of shaft 901 . In one example, the sleeve (not shown) may be made of aluminum or other high strength and lightweight material of choice. Shaft connector 902 and shaft insert 903 may be connected in a mating manner. For example, arrow shaft connector 902 may include screws, fasteners, clips, snap rings, etc., for connecting extended shaft 918 to arrow shaft 901 . Additionally, the insert 903 may include channels, slots, etc. for receiving the connector 902, such as the female threads of a screw. In this example, the extension shaft 918 can be detachably connected to and detached from the arrow shaft 901 so that the extension shaft 918 can be easily replaced and reconnected to the arrow shaft 901 . Through this interchangeability, the extension shaft 918 can be manufactured as a unit and is compatible with standard off-the-shelf arrow shafts. Optionally, shaft 901 and extended shaft 918 may be manufactured as a unit and adapted to receive standard off-the-shelf tips. In addition, the arrow shaft insert 903 may be employed in a manner wherein the arrow shaft insert 903 is attached to the arrow shaft 901 in a manner similar to that which may attach the arrow shaft 901 to a standard arrow head (eg, broad head).

In alternative embodiments, extension shaft 918 may be omitted, and the remaining features (eg, lobes 906 , 907 , broad head tip 912 , etc.) may be attached to arrow shaft 901 without extension shaft 918 . In this example, rather than connecting connector 902 to insert 903 of extension shaft 918 , connector 902 may be directly connected to tip 912 . As such, the arrow 900a can be applied or functioned in the same manner as the arrow 900a described below with the extension shaft 918, but without the extension shaft 918 because one or more members that are the extension shaft 918 are connected to the arrow shaft 901 .

In addition, the arrow 900a can be applied as a multi-cut arrow. In this example, the front portion of shaft 901 (or extension shaft 918) may be configured to receive tip 912 forming the first cutting portion, and one or more lobes (e.g., 906, 907) may form a second cut portion. The second cutting portion may be arranged remote from the first cutting portion, for example behind an insert 911 designed to receive the first cutting portion or arranged at a distance from the first cutting portion. Additionally, the second cutting portion may be offset from the plane of the lobes on the tip 912 to provide a cutting area other than that of one or more lobes 906 , 907 .

In one exemplary, non-limiting illustrative embodiment, an arrow shaft connector 902 may be coupled to an arrow shaft insert 903 to allow a portion of the shaft 901 (relative to the forward portion of the connector 902) to be longitudinally toward or away from the broadhead. The head tip 912 (eg, a fixed wide head) moves. In this embodiment, arrow tip 912 strikes a target and arrow shaft 901 is movable towards extension axis 918, which in turn causes deployment of leaves 906, 907, as described below. The extension shaft 918 can comprise a variety of lengths, for example, between two and twenty inches, although lengths greater than twenty inches and less than two inches are also contemplated.

Arrow shaft 901 and extension shaft 918 can be made from a variety of materials, preferably materials with a high strength to weight ratio. For example, arrow shaft 901 and/or extension shaft 918 may be made from a high-impact polycarbonate material. In another example, arrow shaft 901 and/or extension shaft 918 may be made of plastic, thermoplastic polymer, or other synthetic material suitable for archery-related activities. Other elements of arrow 900a may be made of polycarbonate material and/or plastic, thermoplastic polymers, and the like. In a non-limiting example, connector 902, insert 903, cartridge 904, and insert 911 (as described in more detail below) may also be fabricated from one or more of these materials.

Extension shaft 918 (or arrow shaft 901 ) may also include one or more lobes 906,907. The one or more lobes 906, 907 may comprise arrow lobes, and may be disposed at least partially within or within the extension shaft 918 (or arrow shaft 901). In one example, the one or more leaves 906, 907 may include at least one tab (eg, shown as tabs 908 and 909 on leaves 906, 907, respectively). The at least one tab 908, 909 can be designed to act as a trigger leaf when the tabs 908 and 909 contact the target, which can help to follow the arrow 900a (eg, as shown in FIGS. 16A and 16B ), respectively. Shown in ) pierces the target and deploys the leaves 906, 907. Tabs 908 and 909 may additionally provide support, strength, and help determine the final angle of leaves 906, 907 when in the open position.

In an exemplary and non-limiting illustrated embodiment, tabs 908, 909 may be connected to leaves 906, 907, respectively, by connectors 927, 928 (eg, as shown in FIG. 16A ). Connections 927 , 928 may include any pivots, hinges, pins, joints, etc. for allowing rotation of tabs 908 , 909 relative to leaves 906 , 907 . In one example, the tabs 908, 909 may be retractable such that they can pivot with respect to the leaves 906, 907 between open and closed positions. For example, when the leaves 906, 907 are in the closed position, the tabs 908, 909 may rotate with respect to the leaves 906, 907 at the points where the tabs connect to the leaves 906, 907 (e.g., connectors 927, 928, respectively), thereby It is flush or substantially flush with the extension axis 918 . As the prong 912 hits the target, the arrow 900a will begin to slow down causing the tabs 908, 909 to rotate outward relative to the lobes 906, 907 around the connectors 927, 928 to grab the target and further assist in the movement of the lobes 906, 907. Expand. In another example, the retractable tabs 908, 909 may deploy mechanically as the tip 912 hits its target (e.g., by "grabbing" the target as it enters, and being pushed by the inertia of the arrow passing through the target). open). This mechanical function may be performed in any manner similar to that described to mechanically deploy the fletch when the tip (eg, tip 6 shown in FIG. 2 , tip 912 shown in FIG. 16A , etc.) hits a target. Additionally, the tabs 908, 909 may be designed with rounded cam backs (or various other configurations) to help maximize their ability to rotate back toward the cartridge 904 to grab the target upon impact. ability.

If an extension shaft is used, the leaves 906, 907 can be positioned anywhere along the extension shaft 918 (e.g., between the front tip 912 and the connector 903), or at any point along the shaft if an extension shaft is not used. location. The leaves 906 , 907 may also be connected to the extension shaft 918 such that one or more leaves 906 , 907 are flush or substantially flush with the extension shaft 918 . In one example, the leaves 906 , 907 may omit the tabs 908 , 909 and remain flush or substantially flush with the extension axis 918 . In another example, the lobes 906 , 907 may be completely flush with the extension shaft 918 except that the tabs 908 , 909 may extend at least partially beyond the outer diameter of the extension shaft 918 . Although not specifically shown in the figures, other examples are also contemplated. For example, arrow 900a may include more than two lobes, multiple tabs, and the like.

Arrow 900a may also include leaf cassette 904 and leaf pin 905 . Leaf pins 905 may be disposed in slots 924 to further facilitate deployment of leaves 906,907. For example, leaves 906 , 907 may be connected to extension shaft 918 such that pin 905 engages in slot 924 of one or more leaves 906 , 907 . In this example, as the leaves 906, 907 begin to expand (eg, as shown in FIG. Sliding in the inward direction while being guided by the pin 905.

The leaf cassette 904 may also assist in the deployment of the leaves 906, 907 since the cassette 904 may be designed with a specific angle to facilitate the deployment of the leaves 906, 907. For example, as the leaves 906, 907 move in the rearward direction (e.g., by striking the target with the tip 912), the rear edges of the leaves 906, 907 may contact the surface of the cartridge 904 to facilitate the movement of the leaves 906, 907 based on the cartridge angle (e.g., The speed and angle of deployment of the surface relative to the forward angle of the tip 912). Additionally, the angle of the cartridge 904 helps determine the final angle of the leaves 906, 907 after deployment (eg, as shown in Figure 16C). In one example, an indirect ratio may exist between the angle of the cartridge surface (e.g., measured between the two surfaces forward relative to the tip 912) to the angle of the lobe 906 as measured between the front edges of the lobes 906, 907. , 907 between the final angles (eg, as shown in FIG. 16C ) (ie, the greater the angle of the cartridge 904, the greater the angle between the leading edges of the leaves 906, 907 at the final stop position when the leaves 906, 907 are deployed the smaller the angle). Additionally, the leaves 906 , 907 may include one or more protrusions 929 , 930 . The protrusions 929, 930 may be any structure, such as flanges, tabs, bumps, flanges, etc., that facilitate the opening of the leaves 906, 907. For example, as the leaves 906, 907 begin to expand, the protrusions 929, 930 may contact the leading edge of the cartridge 904, such that the protrusions 929, 930 may provide additional resistance (e.g., by pushing back against the cartridge 904) to effectively Helps to open the leaves 906,907.

Example angles for cartridge 904 may include 45 degree and 60 degree angles, although it is contemplated that other angles may also be used. In addition, the cartridge 904 can be removably attached to the arrow 900a, so that cartridges of different shapes, sizes and angles can be used depending on the specific application of the arrow 900a. Additionally, the cartridge 904 is adjustable such that its position and/or angle can be changed by the user. When the leaves 906, 907 are deployed, the cartridge 904 can extend forward to the leaves 906, 907, and a locking pin 925 (eg, a mechanical locking pin, etc.) can align itself or otherwise engage one or the other of the leaves 906, 907. A plurality of openings 926 (eg, holes, cavities, or other slots, slots, etc.).

In another example, the final angle of the leaves 906 , 907 may be determined by the configuration of the tabs 908 , 909 . For example, tabs 908, 909 may contact extension shaft 918 as leaves 906, 907 expand through a partially deployed configuration (eg, as shown in FIG. 16B ) to a fully deployed configuration (eg, as shown in FIG. 16C ). the outer diameter. Contact between the tabs 908, 909 and the extension shaft 918 may further lock the leaves 906, 907 in place.

Arrow 900a may also include a leaf seal 910 such as an "O" ring, cap, coating, or other type of connection or seal such as shrink wrap. Leaf seals 910 may be provided around the leaves 906, 907 to prevent them from opening prematurely. As arrow 900a decelerates, lobes 906 , 907 may be pushed outward relative to extension shaft 918 , thereby breaking seal 910 . In one example, the seal 910 may be replaced with a new one each time the darts 906, 907 are returned to their non-deployed positions. In another example, the seal 910 may slide or "roll" out of its position on the leaves 906, 907 (eg, in a forward or rearward direction relative to the tip 912). In this example, after the leaves return to their closed position, the seal 910 can be rolled back into its position and reused for the next arrow shot.

Finally, arrow 900a may include a broad head tip insert 911 . The insert 911 may include a connection, such as a screw or the like, to connect the wide head 912 to the extension shaft 918 . Insert 911 may be removably connected to extension shaft 918 so that it may be interchanged with one or more types of wide head, including, for example, off-the-shelf fixed wide head devices. Arrows 900a are not limited to arrows for bows. For example, arrow 900a may embody a projectile from a bow, crossbow, spear gun, dart gun, or the like. Similarly, arrows 900b and 900c (as described in detail below) may generally embody projectiles for bows, crossbows, spearguns, dart guns, and the like.

The expanded example shown in FIGS. 16A-16C will be described in more detail below. As tip 912 hits the target, tip 912 and extension shaft 918 will continue to pass through the target. As the tabs 908, 909 hit the target, the tabs 908, 909 can grab a portion of the target, pushing the leaves in a rearward and outward direction (eg, as shown in Figure 16B). As the leaves 906, 907 contact the target (e.g., the leading edge of the tabs 908, 909 may cause the leaves 906, 907 to begin to unfold), the leaves 906, 907 may continue to open within the target until the leaves 906, 907 reach their final stop position (eg, as shown in Figure 16C). Furthermore, as the arrow tip 912 hits the target, the arrow 900a will begin to decelerate and the leaves 906, 907 can slide back towards the cartridge 904. As the leaves 906, 907 rotate as they open, a torque perpendicular to the extension axis 918 may be provided. Although this deceleration may further assist in the deployment of the leaves 906, 907, a significant amount of deployment of the leaves 906, 907 may occur inside the target. This maximizes the kinetic energy transferred to the target and maximizes the damage done to the target.

Figure 17A is a cross-sectional view of a second embodiment of an arrow according to the present invention, with a channeled wide head and an extended shaft, and the leaves in a closed position. 17B is a cross-sectional view of a second embodiment of the arrow shown in FIG. 17A having a channeled broad head and an extension shaft, with the leaves in a partially deployed position, in accordance with the present invention. Figure 17C is a cross-sectional view of the second embodiment according to the present invention as shown in Figure 17A, with a channeled wide head and extended shaft, with the leaves in an open and locked position. Figure 18 is an enlarged cross-sectional view according to the arrows of Figures 17A-17C, illustrating some features in accordance with the present invention. These features will be described below in conjunction with each other.

Arrow 900b may include arrow shaft 901 and arrow shaft insert 902 . These elements may be similar to shaft 901 and shaft insert 902 of arrow 900a described with reference to Figures 16A-16C, and thus will not be repeated here for purposes of clarity and brevity. Arrow 900b may also include a channeled broad head 916 that may be configured to receive a push rod 914 that may be connected to adjustable tip 913 . Adjustable tip 913 may be configured to move longitudinally toward or away from channeled wide head 916 .

Channeled wide head 916 may include a slot, channel, or other slot configured to receive pushrod 914 such that at least a portion of pushrod 914 may pass through an interior portion of channeled wide head 916 to an opening of channeled wide head 916. The outer surface. As the adjustable tip 913 hits the target, it can move in a rearward direction towards the channeled wide head 916 . Since the adjustable tip 913 can be securely connected to the push rod 914, this rearward movement can cause the push rod 914 to move towards the leaves 906, 907, thereby pushing the leaves 906, 907 to begin deployment. Optionally, a leaf opening device 915 (eg, as shown in FIG. 18 ) may be used. In an exemplary and non-limiting illustrated embodiment, the leaf opening device 915 may comprise a screw head or the like so that as the push rod 914 contacts the leaf opening device 915, the leaves 906, 907 may begin to expand (as shown, for example, in FIG. 17B ). . As the arrow 900b continues into its target, the leaves 906, 907 may continue to deploy until reaching their final resting position (eg, as shown in Figure 17C). The leaf opening means 915 may comprise any structure, such as a rounded head, disc, etc., designed to be received by the cavity formed by the leading edges of the leaves 906, 907 when in the undeployed (e.g., closed) position, to be received as the leaves open. The device 915 contacts the leaves 906, 907 to facilitate opening of the leaves.

Referring specifically to FIG. 18 , the arrow 900b may include an insert 919 such that the push rod 914 is configured to move through the insert 919 and further facilitate movement of the push rod 914 relative to the adjustable tip 913 in the forward and rearward directions, As well as minimizing and/or eliminating movement of the push rod 914 in other directions (eg, perpendicular to the direction of movement of the adjustable tip 913). Finally, although not shown in Figure 18, the arrow 900b may also include a seal 910 for holding the leaves 906, 907 in place until they are deployed.

Figure 19 is an enlarged cross-sectional view of a third embodiment of an arrow having a channeled broad head, a sliding tip, and an extension shaft with the blades in a forward open position according to the present invention. Arrow 900c may include adjustable tip 913 , push rod 914 , channeled wide head 916 , extension shaft 918 , slot 924 and pin 905 . These elements may be similar to similarly numbered elements of arrow 900a and/or arrow 900b described with reference to Figures 16A-16C, 17A-C and 18, and thus will not be repeated here for purposes of clarity and brevity.

Arrow 900c may also include leaves 922 , 923 , slide bar 920 and slide bar opening means 921 . As the adjustable tip 913 hits a target, it can be pushed in a rearward direction toward the channeled wide head 916 , thereby pushing the push rod 914 toward the slide bar 920 . Slide bar 920 may be securely connected to push rod 914 such that slide bar 920 and push rod 914 may move as a single, integral unit. As the slide bar 920 moves in a rearward direction relative to the channeled wide head 916 , the slide bar opening device 921 may push the leaves 922 , 923 outwardly with the help of the slots 924 of the leaves 922 , 923 and the pin 905 .

For example, the leaves 922, 923 may move rearward and outward along the channel formed by the slot 924 with the pin 905 as a guide in the slot 924 as the leaves deploy. The slide opening device 921 may comprise any structure, such as a screw head, a round head, a disc, etc., designed in such a way that it can be received by the cavities formed by the leaves 922, 923 when in the undeployed position, to follow the slide opening device. 921 is in contact with the leaf to facilitate the opening of the leaf. In one embodiment, the leaves 922, 923 may be formed with recesses so that the leaf opening device 921 may contact the recesses in the leaves 922, 923 to facilitate their deployment.

Although arrow designs have been specifically shown and described, the invention is not limited to these specifically shown designs. Those skilled in the art can make modifications and changes to the above design. Such modifications and changes are within the spirit and scope of the invention disclosed herein.

Claims (14)

1. A hunting device, comprising: an extension shaft having a first end configured to removably attach an end of an arrow shaft; at least one blade configured to be coupled to the extension shaft, the at least one blade comprising a first portion and a tab portion; When the at least one blade is in the closed position, the first portion of the at least one blade is substantially flush with the extension axis, the tab portion extends outwardly from the extension axis, and the at least said first portion of a blade extends outwardly from said extension shaft in an open position; and An arrow tip removably attached to the second end of the extension shaft and movable relative to the extension shaft and configured to initiate deployment of the at least one arrow blade when the tip contacts a target. 2. The hunting device of claim 1, further comprising a channeled wide head, a push rod including an adjustable tip, and a leaf opening device. 3. The hunting device of claim 1, wherein the at least one arrow blade moves radially outward from the extension axis from the closed position to the open position after the arrow tip contacts a target. 4. The hunting device of claim 3, further comprising a channeled wide head, a push rod including an adjustable tip, and a leaf opening device. 5. The hunting gear of claim 1, wherein said tab portion of said at least one fletcher blade is retractable. 6. A hunting arrow, comprising: an arrow shaft having a first end configured to removably receive a broad head tip or an extension shaft and a second end having a notch; an extension shaft having an end configured to receive said first end of said arrow shaft and another end configured to receive a broad head tip; at least one fletch comprising a tab and configured to be coupled between ends of the extension shaft; said at least one dart blade is substantially flush with said extension shaft and said tab extends beyond said extension shaft in a closed position, and said at least one dart blade extends outwardly from said extension shaft in an open position; An arrow tip removably attached to one end of the extension shaft and movable relative to the extension shaft and configured to initiate deployment of the at least one arrow blade when the tip contacts a target. 7. A hunting arrow, comprising: an arrow shaft having a first end configured to removably receive a broad head tip and a second end having a notch; an extension shaft having one end configured to receive said first end of said arrow shaft when the broad head tip is not on said arrow shaft and another end configured to be removable ground to receive the wide head tip; at least one fletch comprising a tab and configured to be coupled between ends of the extension shaft; said at least one dart is substantially flush with said extension shaft and said tab extends beyond said extension shaft in a closed position, and said at least one dart extends outwardly from said extension shaft in an open position; and Wherein the at least one dart is configured to move toward the open position when the acceleration of the extension shaft changes. 8. The arrow of claim 7, further comprising a fixed broad head tip attached to the extension shaft. 9. The arrow of claim 7, wherein said tab of said at least one blade is retractable. 10. A hunting device comprising: an extension shaft having a first end and a second end, at least one of which is configured to be removably attachable to the end of the notched arrow shaft; at least one blade configured to be coupled to the extension shaft, the at least one blade comprising a first portion and a tab portion; When the at least one blade is in the closed position, the first portion of the at least one blade is substantially flush with the extension axis, the tab portion extends outwardly from the extension axis, and the at least said first portion of a blade extends outwardly from said extension shaft in an open position; and Wherein the at least one dart is configured to move toward the open position when the acceleration of the extension shaft changes. 11. The device of claim 10, further comprising a fixed broad head tip removably attachable to the extension shaft. 12. The apparatus of claim 10, wherein the at least one arrow blade moves radially outward from the extension axis from the closed position to the open position after the arrow tip contacts a target. 13. The apparatus of claim 10, wherein said tab portion of said at least one dagger blade is retractable. 14. The device of claim 13, wherein the at least one leaf moves radially outward from the extension axis from the closed position to the open position after the tab contacts the target.