This invention relates to bowfishing and bowhunting and more particularly to a mating slide cradle combination for use in bowfishing and bowhunting.
It will be appreciated that one of the challenges in bowfishing is that one is typically bowfishing from an unstable platform such as a small boat, canoe or kayak. In this case appropriate positioning of the slide on the arrow is difficult as the platform is moving around. Moreover, one often leans over at an awkward angle from an embankment when bowfishing, again preventing positioning of the slide. The result is that when bowfishing one is typically firing the arrow at an unusual or unnatural shooting angle. This means that the arrow cannot easily be maintained against the bow riser and potentially result in misfiring.
Because of the instability of the platform, be it a canoe, kayak or the like or because of the awkward firing angle, oftentimes the little arm that hangs over the side of the bow riser and serves as a simple arrow rest is insufficient to maintain the arrow in the appropriate position against the riser. This is true when one leans around or moves around when taking a shot. The result is that when the arrow comes out of the simple arrow rest, the arrow and the fishing line can kick around so as to be dangerous, especially when one is trying to position himself for a shot from an awkward position. Thus the arrow will oftentimes come out of the arrow rest and if such occurs there is a serious risk of injury to either fisherman, hunter, other members of the party and potentially even the boat.
While in bowhunting and in bowfishing there are full containment rests, they have large annuli. The problem is that the arrow can slip around in the full containment rest which changes the rest point and changes the angle of the arrow.
Moreover, since the full containment rest lets one change the angle of the bow from vertical to as much as 30 degrees as one is bending over, these full containment arrow rests do not produce a reliable shot.
Thus, in addition the problem of safety of the arrow coming out of a simple arrow rest, there is also the problem of the arrow moving around in a full containment arrow rest which can cause the arrow to go off target.
By way of background, as described in U.S. Pat. No. 6,517,453 a slide is provided on an arrow to which is attached a fishing line. The purpose of a bowfishing slide is to make sure the string or line attached to the arrow to retrieve a fish stays in front of the handle so that when the arrow is released there is no chance of being caught up in the string.
It will be noted that the line or a string allows one to retrieve the arrow and fish or quarry that one is shooting at. It might be thought that one could simply use a traditional arrow and attach the string or line at the front of the arrow. However if one attaches the string at the front of the arrow it will cause the arrow to deflect sideways in flight. If however one attaches it at the rear of the arrow, the arrow is much more aerodynamically and hydrodynamically stable.
The problem however is that the string that is attached to the end of the arrow may come all the way back by the person's face as they are drawing the bow. When the string is flung forward after arrow release it can potentially come in contact with the person's face or hand or arm. From the above patent it can be seen that a slide is mounted on the arrow with the line attached, with the slide to always be in front of the bow handle. After release the slide moves forward and travels on the arrow, with the string or the line attached to the slide for retrieval. It is noted that the trailing edge of the arrow is provided with a stop that contacts the slide as the arrow moves away from the bow such that the arrow and the slide move forward in unison.
As will be appreciated the attachment of the line to the rearmost part of the arrow provides better aerodynamic stability than one would have if one did not have the slide.
The embodiment in the '453 patent has the slide positioned on the arrow ahead of the riser or bow handle so that line cannot get tangled in the hunter's or archer's hand or otherwise get tangled in elements of the bow. Thus, safety is provided because the line is always in front of the bow riser. However it is only with difficulty that this critical positioning can be maintained. This is because there is nothing to prevent the slide from sliding aft past the riser when the arrow is in place. Additionally, the '453 patent embodiment does not constrain the arrow, and allows for the arrow to be displaced from the riser as previously described.
Rather than providing a slide translatable on an arrow shaft ahead of a riser, in the subject invention a slide is provided which is snapped into a cradle carried on the bow riser in which the cradle is aft of the riser. When the arrow is snapped into the cradle in this manner the arrow does not move around and safety concerns are considerably diminished especially for unstable platforms such as occur in bowfishing.
In one embodiment the cradle is provided with a deformable member such as a rubber piece which communicates with a notch on the slide such that when the arrow is in place and the slide is then moved aft to snap into the cradle, the arrow is fully constrained in motion such that even when fishing from an unstable platform, the arrow will not come away from the riser and the result is increased safety as well as increased shot accuracy.
In one embodiment of the subject invention a stop in the form of a washer or disc is positioned at the end of the arrow ahead of the nock, such that when the arrow is released the arrow moves through the slide until such time as the disc contacts the rear portion of the slide, at which point the slide and the disc move as a unit with the arrow out from being snapped into the cradle, with the slide and the disc moving along with the arrow to its intended target.
It will be appreciated that a line or string that is attached to the arrow is attached to the slide as in the case of the aforementioned patent. However, it makes no difference if the slide is aft of the bow riser, as safety is not a problem due to the mating slide/cradle configuration.
It will be appreciated that the arrow is pre-assembled with the subject slide and stop, and is snapped into the cradle. Note that the slide may freely translate on the arrow shaft. Thus when mounting the arrow to the bow positions the arrow shaft in the cradle and thereafter moves the slide aft on the arrow shaft such that the slide snaps into the cradle. In one embodiment the cradle is C shaped to permit easy positioning of the arrow shaft in the cradle prior to snapping the slide into the C shaped cradle.
It will be appreciated from a safety point of view that the string or line attached to the snapped in slide cannot interfere with either the human being using the bow or any of the bow parts due to the fact that the line is led in front of the riser from the fixed position of the snapped-in slide.
Once the arrow is released, the arrow shaft translates forwardly through the captured slide until such time that the stop engages the rear portion of the slide and unsnaps the slide from the cradle at which point the arrow and slide move forwardly in unison as the arrow starts its flight.
Aside from the safety issues and the ability to tightly constrain the arrow against the riser prior to releasing the arrow, it has been found that the string provides aerodynamic stability for the arrow during flight once the arrow and slide have left the cradle.
This aerodynamic stability is in part due to the trailing of the line after the arrow but also is due to the aerodynamic properties of the slide as the arrow moves through the air. It will be appreciated that the inflight balance of the arrow is such that the slide creates a slight drag on the arrow as it flies such it tends to straighten out the arrow during flight. This occurs whether or not there is a string attached to the slide and as a result it has been found that the use of the translatable slide on the arrow can replace the fletchings which are normally used to stabilize arrow flight. Thus, the slide having moved to the end of the arrow during flight serves the same function as the fletchings without the problem of attaching fletchings to the arrow shaft, involving intricate manufacturing steps, all of which can be avoided if the arrow is provided with the subject slide.
It is noted that the inner diameter of the cradle provides clearance for the disc stop at the end of the arrow such that by snapping the slide in the cradle and with the diameter of the disc being less than the diameter of the slide, the disc does not in any way come into contact with the cradle walls as the arrow is released.
While in one embodiment of the invention the slide has a circumferential notch that communicates with an inwardly directed rib in the cradle, the reverse is possible such that the slide may have an outwardly directed circumferential rib which communicates with an inwardly directed channel in the cradle.
As to the cradle construction itself, in one embodiment as mentioned before the cradle is a C shaped structure which has an outer C shaped shell in which is captured a compliant deformable or resilient C shaped member that captures the slide when pressed into the cradle. In general, the deformable member may be of rubber or other resilient material which will deform but yet has memory.
In order to prevent the slide from moving through the cradle and aft of the cradle, the slide is provided with an annular shoulder at the forward portion of the slide which coacts with the cradle so that the slide can be pushed only so far through the cradle at which point the shoulder mates with a cradle lip, thereby providing a safe slide snap in procedure.
Note that the cradle which incorporates the compliant material is mechanically attached to the riser of the bow. Note also that the slide in one embodiment is a hard plastic piece that has a low coefficient of friction so that it may translate easily on the arrow shaft.
In one embodiment the C shaped shell contains a compliant member of urethane or a thermo polymer chosen for abrasion resistance. It is relatively strong yet less expensive to manufacture than some of the alternative rubber materials. Note that the compliant material in the cradle may also be made out of silicone as well as for instance vulcanized rubber. The compliant material may also be made of a soft vinyl material. However, with urethane provides better abrasion resistance and strength.
In summary what is provided is an arrow shaft mounted slide that is releasably snapped into a cradle carried by the riser of a bow, in which the slide cradle combination provides a tight arrow rest as well as an anchoring mechanism for one end of the line when used for bowfishing. The arrow shaft provided is provided with a stop at its distal end such that when the arrow is released the stop contacts the slide, unclips it from the cradle, thus permitting the slide and arrow to move out of the cradle. The slide/cradle structure locks the arrow adjacent the bow riser prior to arrow release, with the slide providing for aerodynamic stability after release of the arrow. The use of the slide may also replace the fletchings normally used at the distal end of the arrow to provide the same type of aerodynamic stability as fletchings presently provide. Thus, the slide cradle combination can be used for both bowfishing and bowhunting.
These and other features of the subject invention will be better understood in connection with the Detailed Description, in conjunction with the Drawings, of which:
Referring now to
The instability of the platform is an important factor in bowfishing due to the fact that most bowfishermen utilize small skiffs or boats.
As illustrated, a line 30 is attached to arrow 12, with line 30 paying out from a reel 32 such that when the arrow is released the line travels out with the arrow to the intended target.
The problem with this arrangement is not only that the arrow may fall off the arrow rest formed by the person's hand or a small extension 34 from the riser of the bow, it also may be that line 30 may be caught either on the person or on some portion of the boat or paddle such that if the line is not properly controlled injury can occur to the archer or to the boat itself. Further, with the arrow may be defected if the line gets tangled.
Referring now to
Referring to 2B what is seen is slide 42 captured in cradle 44 due to the coaction of resilient member 46 with groove 50 in the slide. As will be discussed hereinafter the arrow is provided with a disc shaped stop 52 which is mounted ahead of nock 54 on arrow 40 such that when the arrow is released stop 52 strikes the distal end 56 of the slide to unsnap the slide and the arrow from the cradle as it moves out from the bow.
Referring now to
Referring to
Referring to
Thereafter as illustrated in
Here it can be seen that arrow 76 has moved through cradle 44 due to the fact that the arrow can slide easily through the captured slide.
Referring now to
Referring to
What will be seen is that while cradle 44 is behind riser 87 it nonetheless prevents line 86 from getting entangled in the bow or in fact the archer's hand, thus providing a safety feature not heretobefore provided. Moreover, the clamping of the arrow into cradle 44 provides that the arrow is clamped to the bow prior to release, thus to permit accurate aiming and release and also to prevent the arrow from coming away from riser 81 during the firing of the bow. In short, the mating arrow-mounted slide and cradle form a secure arrow rest to clamp the arrow to the riser.
It will be appreciated that while the subject invention has been described in connection with bowfishing, absent line 86 the combined slide and cradle form a particularly tight arrow rest for use in bowhunting as well, with the slide providing an aerodynamic stabilizing element for the arrow during flight in the bowhunting situation as well.
In one embodiment of the subject invention the slide may have an elastomeric member 100 as illustrated in
As can be seen in this embodiment an annular notch 120 cooperates with an inwardly directed ridge 122 in elastomeric member 100 so as to capture slide 102 in the elastomeric member portion of the cradle.
After slide 102 is releasably captured in elastomeric member 100 arrow 112 is drawn back as illustrated by arrows 114 against bow string 124, with the arrow having a disc shaped stop 126 just ahead of nock 128.
As illustrated in
Finally as illustrated in
Due to the sizing of stop 126 and the diameter of slide 102 it will be seen that there is sufficient clearance for stop 102 to move through cradle elastomeric member 100 and the aperture 134 thereof.
Referring now to
Also shown in
Referring to
As illustrated in
While the present invention has been described in connection with the preferred embodiments of the various figures, it is to be understood that other similar embodiments may be used or modifications or additions may be made to the described embodiment for performing the same function of the present invention without deviating therefrom. Therefore, the present invention should not be limited to any single embodiment, but rather construed in breadth and scope in accordance with the recitation of the appended claims.
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Number | Date | Country | |
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20150024880 A1 | Jan 2015 | US |