Oscillating Fishing Lure

Abstract

The oscillating fishing lure is a fishing lure comprising: a body with a longitudinal axis, an uppermost surface, at least one hook, said first hook including a shank and a hook end, said shank being coupled to said body; a blade having an edge proximal to said body, wherein, during retrieval, a majority of said blade is oriented below said uppermost surface of said body; a joining mechanism whereby said blade is moveably coupled to said body, wherein said blade has freedom to move with respect to the roll, pitch and yaw axis only within strict mathematical limits; a line attachment mechanism, through which a fishing line is attached to the lure; and whereby retrieval of the lure causes the blade to oscillate in at least one dimension, and thereby causing the lure to erratically hunt. The oscillating-blade action imparts a natural swimming motion to the lure, emulating prey-species movements.

Claims

1. A fishing lure comprising: a body with a longitudinal axis, an uppermost surface, a rearward surface, at least one hook, said first hook including a shank and a hook end, said shank being coupled to said body; a blade having an edge proximal to said body, wherein, during retrieval, a majority of said blade is oriented below said uppermost surface of said body; a joining mechanism whereby said blade is moveably coupled to said body, wherein said blade has freedom to move with respect to the roll, pitch and yaw axes only within strict mathematical limits; a line attachment mechanism, through which a fishing line is attached to the lure; whereby retrieval of the lure causes the blade to oscillate in at least one dimension, and thereby causing the lure to hunt in a erratic path, but still return to the bore path periodically.

2. A fishing lure as in claim 1 wherein said joining mechanism limits the amount of roll achievable by the blade to 0 degrees.

3. A fishing lure as in claim 1 wherein said joining mechanism limits the amount of roll achievable by the blade to less than 5 degrees.

4. A fishing lure as in claim 1 wherein said joining mechanism limits the amount of roll achievable by the blade to less than 12 degrees.

5. A fishing lure as in claim 1 wherein said joining mechanism limits the amount of pitch achievable by the blade to less than 10 degrees.

6. A fishing lure as in claim 1 wherein said joining mechanism limits the amount of yaw achievable by the blade to less than 45 degrees.

7. A fishing lure as in claim 1 wherein said joining mechanism limits total angular motion of the blade in which the combined values of the roll, pitch and yaw angles are less than 60 degrees.

8. A fishing lure as in claim 1 wherein the hunting action is erratic.

9. A fishing lure as in claim 1 wherein the hunting action is off bore.

10. A fishing lure as in claim 1 wherein the hunting action is active while the lure is retrieved at high speed.

11. A fishing lure as in claim 1 wherein the hunting action is active while the lure is retrieved at low speed.

12. A fishing lure as in claim 1 wherein the hunting action is active independent of the retrieval speed.

13. A fishing lure as in claim 1 wherein the blade width is at least 25% the width of the body at its widest point.

14. A fishing lure as in claim 1 wherein the blade width is at less than 200% the width of the body at its widest point.

15. A fishing lure as in claim 1 wherein the length of the extension of the blade beyond the front edge of the body measured along the longitudinal axis is less than 10% the length of the body.

16. A fishing lure as in claim 1 wherein the length of the extension of the blade beyond the front edge of the body measured along the longitudinal axis is less than 50% the length of the body.

17. A fishing lure as in claim 1 wherein the length of the extension of the blade beyond the front edge of the body measured along the longitudinal axis is less than 100% the length of the body.

18. A fishing lure as in claim 1 wherein said line attachment mechanism comprises at least one through hole located in said body.

19. A fishing lure as in claim 1 wherein said line attachment mechanism comprises an eyelet affixed to said body.

20. A fishing lure as in claim 1 wherein said line attachment mechanism comprises at least one through hole located in said blade.

21. A fishing lure as in claim 1 wherein said line attachment mechanism comprises at least one eyelet located affixed to said blade.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The invention will be described in detail with reference to the accompanying drawings. Each of the figures is a schematic diagram more fully described below.

[0029] FIG. 1 is a perspective view of the fishing lure, including at least one hook and a blade.

[0030] FIG. 2 is a perspective of the fishing lure, detailing the roll, pitch and yaw axes with respect to the blade and the body; the roll axis being more or less defined by the major axis running through the longitudinal axis of the body of the lure.

[0031] FIG. 3 is a side view of the lure, showing some of the body shapes/sizes available in this invention, to wit: a short, squat body; a long, squat body; a short, thin body; and a long, thin body. Additionally, these figures show the blade may be shallow- or deep-set within the body, may be mounted nearly parallel to the longitudinal line of the body or may be at a depressed angle relative to that line, and may be mounted at the nose/mouth of the body, or in back and/or below the nose/mouth.

[0032] FIG. 4 is a top-down view of lure, detailing the variations in ratios of the length of the extension of the blade beyond the body to the overall body length available with this invention, to wit: ratios of 200%, 50% and 10%.

[0033] FIG. 5 is a top-down view of the front portion of the lure, detailing the variations in blade width to body width ratio available with this invention (both measured at their widest points), to wit: a blade that is at least 25%, 100% and 200% the width of the body.

[0034] FIG. 6 is a top-down view of the front portion of the lure, showing some of the variations in geometry of the blade available within this invention. As can be seen, the sides and front edge of the blade can have different geometries, and can be various combinations of concave, convex, or straight.

[0035] FIG. 7 is a perspective view of the front portion of the lure, detailing some of the variations in blade structure available within this invention. As shown, the blade may be straight (planar), may comprise a curve in one or more dimensions, may be spoon shaped, may be bent/angled, or may have a stepped structure.

[0036] FIG. 8 shows additional features that may be present on the blade. The blade may incorporate raised edges on its upper and/or lower surfaces. The raised edges may be continuous or discontinuous. When discontinuous, the discontinuous segments may be symmetrical or non-symmetrical, and/or identical or non-identical.

[0037] FIG. 9 details the various locations and mechanisms through which a line may be attached to this lure. The line may be attached via an eyelet, a through hole, or a clip, and said eyelet, through hole or clip may be located at the nose or top of the head of the lure, or located in the blade.

[0038] FIG. 10 is a front-facing perspective of lure of FIG. 1, wherein the roll axis and the limitation on the blade's freedom of motion in the roll axis are documented.

[0039] FIG. 11 is a side-facing perspective of lure of FIG. 1, wherein the pitch axis and the limitation on the blade's freedom of motion in the pitch axis are documented.

[0040] FIG. 12 is a front-facing perspective of lure of FIG. 1, wherein the yaw axis and the limitation on the blade's freedom of motion in the yaw axis are documented.

[0041] FIG. 13 shows the erratic hunting path of the lure at both a low-speed retrieval and a high-speed retrieval. The high-speed retrieval results in a more pronounced off-bore travel, but in both cases the lure always returns to bore.

DETAILED DESCRIPTION OF THE DRAWINGS

[0042] The present invention is a fishing lure with an oscillating blade, designated generally as 10 in the drawings. Referring to FIG. 1, fishing lure 10 comprises a blade 20, a body 30, and a hook 40. As the lure is pulled through the water, the water rushing past the blade causes the blade to oscillate relative to the movement of the lure.

[0043] In FIG. 1, blade 20 is attached to body 30 at the mouth of the body, slightly below the middle, and at a slightly depressed angle relative to the body's longitudinal axis. One hook 40 is located at the extreme trailing edge of the body, with a second hook located under the body slightly forward of the mid-section.

[0044] FIG. 2 details the roll, pitch and yaw axis relative to the body. In the instant drawing, the blade is free to oscillate in a strictly controlled fashion about roll, pitch and yaw axes. As the lure is pulled through the water, the flow over the blade creates various regions of lift and drag, causing the blade and the blade-body combination to move in random, unpredictable patterns.

[0045] If the blade was fixed, as in most prior inventions and nearly all currently available devices, and the lure was retrieved slowly, a steady laminar flow regime develops over the blade, allowing these past lures to move in a linear fashion with little if any hunting action. However, as the retrieval speed is increased, the fixed blade-body combination would eventually face uneven forces typically causing the lure to rotate about its longitudinal axis until it was belly up.

[0046] Attempts to stop this from happening and create a more natural hunting motion were proposed by Pfeiffer (U.S. Pat. No. 5,337,508) and Renaud (U.S. Pat. No. 4,777,761). Their proposed solutions comprised a blade that was allowed to swivel laterally. However, both of these solutions fail because they failed to appreciate the hydrodynamic forces impacting the blade (and blade-body combination) upon retrieval. While the swiveling blade does create some limited hunting action, because the lateral motion is uncontrolled, the designs have inherent hydrodynamic instability—the blade gets locked into it farthest left or right position, causing lift on only one side of the lure, which causes the lure to rotate over its longitudinal axis, and the lure goes belly up.

[0047] In order to stop their inherent hydrodynamic instability, both attempted to limit the lateral range of motion of their blades by physical contact with the lure body, or with internal structures in the mouth of the lure. The greater the reduction in yaw allowed, the lower the chance of dynamic instability. However, the greater the reduction in yaw allowed, the lower the chance of achieving actual hunting action. Thus, regardless of their efforts to randomly physically limit yaw, any increase in speed above bare minimum headway speed would result in dynamic instability, the blade would lock into its farthest left or right position, the lure would rotate, and eventually, the lure would be belly up. As such, the designs expressed in their patents, attempting to blindly limit yaw without understanding the hydrodynamic forces at play, fail to operate with the hunting motion they describe, and more often than not, result in their lures rotating belly up and failing to hunt at all.

[0048] The present invention overcomes these deficiencies by strictly limiting the motion of the blade with respect to roll, pitch and yaw within prescribed boundaries. While the prior art discusses somewhat random (i.e., uncontrolled) limitations solely with respect to yaw based on physical interference with the blade, the present invention controls the freedom of motion of the blade within strict 3-dimensional boundaries. Although various mechanisms for achieving this control are well known, the need for strictly limiting the 3-dimensional freedom of motion of the blade within prescribed boundaries, and the boundaries themselves, were not known prior to the present invention.

[0049] While the general boundary limits are expressed within the present invention, they can be tailored depending on various physical features of the body and blade. Doing so allows the lure of the present invention to mimic not only the size and shape of various baitfish, but the motions typically expressed.

[0050] Examples of some of the sizes and shapes of bodies 30 are shown in FIGS. 3 (31, 32, 33, and 34). As detailed, the body can be short and squat 31, long and squat 32, long and thin 33, or short and thin 34. FIG. 3 also details how the blade 20 can be set at various depths within the body, at various locations within the body, and at various angles relative to the body's longitudinal axis. In nearly all instances of the present invention, the blade has at least a shallow angle of depression, although this can vary based on the blade geometry and features.

[0051] Different blades with different geometries and features can be used with a particular body style, giving the lure a different hunting action. The differences in the size, length, width, and geometries of the blade can be more readily observed in FIGS. 4-8.

[0052] FIG. 4 details variations in the ratio between body length and exposed blade length. By way of explanation, the exposed blade length is calculated independent of the attachment point or location, and only measures the observed length of the blade forward of the nose of the body when viewed from overhead. As shown, body 30 has a constant length, while blades 21, 22 and 23 are, respectively, 200%, 50%, and 10% the length of body 30.

[0053] FIG. 5 details variations in the ratio between body width and blade width (both measured at their widest points). While body 30 has a constant width in all three examples, blade 20 can vary from thin to wide, or as shown in this example, from 25% (24), 100% (25), and 200% (26) the relative width of the body.

[0054] As has been seen, the length and width of blade 20 can be changed in order to accommodate different hunting actions. Likewise, as in FIG. 6, blade 20 can have different geometries. As viewed from top-down, showing only the nose of body 30, the sides and front edge of blade 20 can be variously concave, convex, straight, or combinations of concave, convex, and straight. The different geometries generate different flow regimes, which, in combination with variations in blade length and width, generate different hunting actions and paths.

[0055] FIG. 7 details some of the different 3-dimensional shapes blade 20 may have in conjunction with variations in blade geometry expressed in FIG. 6. Blade 20 may be planar, may bend in one or more dimensions, may comprise a curve, may be spoon shaped, or may comprise multiple segments with different angles or curves. As stated earlier, each of these different 3-dimensional shapes creates different flow regimes, and thus, different hunting actions and paths.

[0056] Aside from the various 3-dimensional shapes and edge geometries already expressed, blade 20 can incorporate various surface features, which can change the flow regime over the blade, and thus alter the hunting path and action of the lure. FIG. 8's three examples show a perspective view of the head of body 30 and a blade 20. In these examples, blade 20 comprises either continuous or discontinuous raised edges on the upper surface. For the discontinuous edges, the discontinuities may be symmetrical or non-symmetrical, and/or identical or non-identical. Although not shown, these surface features can be on either the upper or lower surface, or on both, and may exist as shown on the edges, or at locations other than the edges.

[0057] The lure must be pulled by a line to be retrieved. The location of the attachment of the line can alter the flow regime over the blade due to the angle of the force imparted from the line during retrieval. As shown in FIG. 9, the present invention may have various different locations, and connection mechanisms, for attaching a line to the lure. As detailed in the drawings, the line can be attached via an eyelet 40 (or a through hole in the body, which would serve the same purpose), or via a clip 41. Based on the size of the body, the size of the blade, or the attachment location and angle of the blade, the attachment location can be on the nose of the body, the head of the body, or on the blade.

[0058] FIGS. 10, 11, and 12 detail, respectively, the roll, pitch and yaw angles of the blade relative to the body. FIG. 10 is a front view of the lure, showing the limitations in roll angle 51, in this instance, based on the size of the body opening for blade 20 relative to the blade thickness. While the present example shows a fixed mouth for receiving the blade, one or more inserts can be place into the mouth (or onto the blade) to reduce the ratio of mouth height to blade thickness, to further limit roll angle.

[0059] FIG. 11 shows pitch angle 52 by way of a side view of the front portion of body 30. Pitch angle 52 is governed by the depth of blade 20 into body 30, the location and type of the attachment mechanism within the mouth, and ratio of mouth height to blade thickness. Controlling for these three factors yields precise control of the available pitch blade 20 is allowed to experience.

[0060] FIG. 12 is a top-down view of the nose of body 30 showing the yaw angle 53 available to blade 20. As the prior art has readily detailed, yaw angle 53 can be readily controlled by limiting the width of the mouth (which receives the blade), or through various inserts or other structures to limit the lateral range of motion. Although these control mechanisms are well known in the art, the precise limits expressed within this invention are the key to overcoming the failures of previous designs, and creating a lure which can actually hunt in a random, erratic off-bore fashion, regardless of retrieval speed.

[0061] FIG. 13 details two examples of the off-bore, erratic hunting path achievable by the present invention. As expressed elsewhere, the geometry and shape of blade 20, its size relative to body 30, and the retrieval speed can alter the hunting behavior, introducing erratic, random path generation as the lure is retrieved.

[0062] Lastly, it is to be understood that the present invention is not limited to the embodiments described above, but encompasses any and all embodiments within the scope of the following claims, individually, or in variations combinations.