New method for tying artificial flies

The innovative design of the artificial fly with a angled shank and perpendicular body-thorax assembly addresses landing inconsistencies and visibility issues, ensuring consistent flotation and visibility, improving fishing effectiveness.

FR3160855B1Active Publication Date: 2026-05-01PECASTAING GUY
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Patent Information

Authority / Receiving Office
FR · FR
Patent Type
Patents
Current Assignee / Owner
PECASTAING GUY
Filing Date
2024-04-09
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

Existing artificial flies constructed around a hook shank are prone to inconsistent landing positions on water, often with the hook point pointing downwards, upwards, or to the side, leading to partial submersion of the collar and reduced visibility, especially in natural lighting conditions, and require excessive buoyant materials, making them heavier and less visible.

Method used

The artificial fly design features a hook with a shank forming an angle greater than 45° with a body-thorax assembly, where the body and thorax extend perpendicular to the shank, and the collar is positioned flat on the water, allowing the fly to land consistently and remain visible with minimal obstruction, using a visibility tuft and a submerged hook to maintain buoyancy and visibility.

Benefits of technology

The fly consistently lands flat on the water's surface, maintaining visibility and buoyancy without excessive weight, enhancing the angler's ability to see and present the fly effectively, even in challenging lighting conditions.

✦ Generated by Eureka AI based on patent content.

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Abstract

Artificial Fly. The invention relates to an artificial fly comprising: A hook having a shank extending between first and second ends in a first direction, the first end being provided with an eyelet (2) for being attached to a line; A body (3) and thorax (14) assembly connected to the shank, which has a second direction forming an angle greater than 45° with the first direction of the shank, preferably perpendicular to the first direction; Cerci (6) connected to the body (3) and positioned at the second end of the body (3) and in its extension; A collar (4) wraps around the shank (x) between the body (3) and thorax (14) assembly and the eyelet (2), which is itself surmounted by the visibility tuft (1).
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Description

Title of the invention: New method for tying an artificial fly

[0001] The present application relates to an artificial (dry) fly,

[0002] For the purposes of this application, the following definitions are provided:

[0003] Wing: Which all aquatic insects possess.

[0004] Leader: Nylon of decreasing diameter connecting the silk and ending at the thinnest end where the fly is attached.

[0005] Cerci: Caudal appendages of certain aquatic insects.

[0006] UV glue: Glue which polymerizes on contact with natural UV light or under the effect of a lamp.

[0007] Collar: Assembly formed by the wrapping of floating materials. Example: rooster feather, duck feather or any other material.

[0008] Body: Imitation of the abdomen of aquatic insects.

[0009] Curvature: Rounded part of the hook.

[0010] Duck's butt: Small, extremely buoyant feather, taken from around the uropygial gland of ducks.

[0011] Emergent: Intermediate stage between the nymph and the flying insect.

[0012] Ephemeral: Family of aquatic insects, whose final transformation takes place on the surface of the water.

[0013] Exuvia: Empty envelope of the nymph after the insect has hatched.

[0014] Fibres: Elements attached to the rachis of the feather.

[0015] Greased: Action of greasing all the elements of a fly to allow it to float better.

[0016] Shank: Right part of the hook between the eye and the bend.

[0017] Impact of the leader on the water: Visible trace of the leader on the water.

[0018] Nymph: Intermediate stage between larva and flying insect.

[0019] Eyelet: Hook ring for attaching to the leader.

[0020] Parachute: Collar that lies flat on the water.

[0021] Plecoptera: Family of aquatic insects that transform on stones emerging from the water.

[0022] Point: Sharp end of the hook

[0023] Rachis: Central element of the feather supporting the fibers.

[0024] Silk: Fly fishing line.

[0025] Spent: Dead insect carcass drifting on the surface.

[0026] Terrestrial: Group of non-aquatic insects that fall into the water and attract fish, which feed on them. Examples: ants, grasshoppers, crickets.

[0027] Thorax: Part of the insect supporting the legs, wings and head.

[0028] Toupet: Visual landmark or imitation of wings.

[0029] Caddisfly: Family of aquatic insects, whose final transformation takes place on the surface of the water.

[0030] According to known embodiments, all existing artificial flies are still constructed today on the same principle. Their construction model consists of using the hook shank as the main support. According to an embodiment shown in Figures 1 to 3, the body 3 is constructed around this shank, trapping a pinch of fibers to imitate the cerci 6. The body 3 extends between the first and second ends and has a direction passing through the first and second ends parallel to the hook shank. Thus, the body 3 is pressed against the hook shank. The cerci 6 are positioned in line with the shank and aligned with it. Next, a collar 4 of feathers (or other) also wraps around the shaft, between the body 3 and the end eyelet 2. It imitates the wings, the legs and is the essential element of flotation.Such a fly is perfectly balanced around an axis corresponding to the hook shank. Under these conditions, the fly will always land roughly parallel to the water's surface, but never in the same position. Indeed, the hook point will be either pointing downwards, upwards, or to the side—in fact, never the same. Due to its positioning on the water, the entire hook will be out of the water, as illustrated in [Fig. 1], adding considerable weight to the construction. To compensate for this weight, it will be necessary (and logically so) to use more buoyant material, resulting in a heavier, more opaque fly, etc. Furthermore, when this fly lands on the water, the six tails, lying flat, will immediately benefit from the physical phenomenon of surface tension and will float perfectly.The collar 4, whose fibers will strike the water's surface with their tips 4a, as illustrated in [Fig. 3], will not benefit from surface tension. They will therefore submerge until the lateral fibers 4b, 4c lie at an angle, then flat on the water. Only then will they benefit from the surface tension of the water, and the fly will float. This partial submersion of the collar 4 will have the unfortunate consequence of bringing the eye 2 closer to the surface, and consequently, the devastating impact of the leader 12, which will come very close to the fly (see point 17 in [Fig. 3]). Furthermore, the collar 4 will be on the water, the only visual reference point for the angler. But since all natural flies have very neutral overall colors (shades of gray), Darker shades of brown, dark beige, and dark green), the imitations will also have colors that closely resemble nature. In certain lighting conditions, despite their size, they may not always be easily visible to the angler. Furthermore, the excessive use of buoyant materials will create a physical barrier to light, which is essential.

[0031] The present invention aims to remedy all or part of the drawbacks of the prior art.

[0032] To this end, the invention relates to an artificial fly comprising: a. A hook comprising a shank x extending between first and second ends and having a first direction, the first end having an eyelet 2 for being able to be attached to a line of a fishing line, b. A body-thorax assembly (3 parts) connected to the shaft, extending between the first and second extremities and presenting a second direction, c. Cerci connected to body 3 and positioned at the level of the second end and in its extension.

[0033] According to the invention, the first direction of the shaft x and the second direction of the body 3 thorax 14 assembly form an angle greater than 45° (approximately 90 degrees).

[0034] Other features and advantages will become apparent from the following description of the invention, given by way of example only, with reference to the accompanying drawings, among which:

[0035] [Fig. 1] is a side view of an artificial fly illustrating an embodiment of the prior art,

[0036] [Fig.2] is a top view of the artificial fly visible in [Fig.1],

[0037] [Fig.3] is a front view of the artificial fly on the [Fig.2],

[0038] [Fig.4] is a side view of a hook out of the water,

[0039] [Fig.5] is a side view of a fishhook in water,

[0040] [Fig.6] is a lateral view of the body and thorax of an artificial fly illustrating one embodiment of the invention,

[0041] [Fig.7] is a side view of an artificial fly illustrating the 90° angle between the shaft x and body 3 of the invention,8

[0042] [Fig.8] is a schematic representation illustrating three examples of bodies according to the invention,

[0043] [Fig.9] is a side view of an artificial fly illustrating details of realization of the invention,

[0044] [Fig. 10] is a side view of an artificial fly in the air,

[0045] [Fig. 11] is a side view of part of an artificial fly illustrating a mode of the realization of the invention,

[0046] [Fig. 12] is a side view of part of an artificial fly illustrating another embodiment of the invention,

[0047] [Fig. 13] is a top view of part of an artificial fly illustrating one embodiment of the invention,

[0048] [Fig. 14] is a side view of an artificial fly illustrating one embodiment of the invention,

[0049] [Fig. 15] is a top view of the artificial fly visible in [Fig. 14],

[0050] [Fig. 16] is a side view of an artificial fly illustrating the mode of realization of the invention,

[0051] [Fig. 17] is a top view of the artificial fly visible in [Fig. 16],

[0052] [Fig. 18] is a side view of an artificial fly illustrating a mode of realization of the invention, placed on the water,

[0053] [Fig. 19] is a side view of part of an artificial fly illustrating another embodiment, (caddisfly)

[0054] [Fig.20] is a side view of part of an artificial fly illustrating another embodiment of the invention, (plecopter)

[0055] [Fig.21] is a side view of part of an artificial fly illustrating an embodiment of the invention, (ant)

[0056] [Fig.22] is a top view of the artificial fly visible in [Fig.21],

[0057] [Fig.23] is a side view of an artificial fly illustrating a mode of realization of the invention. (Emerging)

[0058] According to an embodiment visible in [Fig.4], a hook comprises a shank x, an eye 2 at a first end of the shank x, a bend w at a second end of the shank x, and a point p.

[0059] The shaft x has an upper part (y) representing 1 / 3 of the length of the shaft (x) and a lower part (z) representing 2 / 3 of the length of the shaft (x).

[0060] As illustrated in [Fig. 5], the water presents a surface film 13; when the hook is positioned vertically in the water, a waterline 18 is thus determined. Such that the upper part (y) is located above the waterline 18 and the lower part (z) is located below the waterline 18.

[0061] Fig. 6 shows the body 3 and the thorax 14 of the fly of the invention. At the end of the body 3 are two cerci 6. The assembly is constructed from a silicone microtube and sealed at its two ends by two microdrops of UV c glue. The boundary of the front 1 / 4 and the rear 3 / 4 is the point of attachment on the shaft x.

[0062] Fig. 7 shows the position of the fly, obtained by the process of the invention, on the water. The attachment of the thorax 14 (front 1 / 4) and the body 3 (rear 3 / 4) perpendicular to the shank x of the hook, also the position of the cerci 6, the two shoulders 5 and 7, as well as the visibility tuft 1

[0063] Figure 8 shows, by way of example, other ways of making bodies. a) is constructed from pre-worked floating foam. b) is constructed from a feather whose fibers have been cut on either side of the central shaft, leaving only two millimeters on each side. At the end, the shaft is cut, leaving two fibers intact to simulate the cerci. c) is made from a feather whose fibers have been curled back and which is securely fixed. At the end, the shaft is cut, leaving two fibers intact to simulate the cerci.

[0064] Fig. 9 shows in detail the attachment of the tuft 1 with the winding of mounting wire at the rear of the eyelet 2, between the tuft 1 and the upper shoulder 5, also the construction of the upper shoulder 5 and the lower shoulder 7 which will generate the mini groove 10,

[0065] Figure 10 shows the dynamic behavior of the fly obtained by the process of the invention during false casts that propel the fly at very high speed above the water. It is the weight of the fly line that pulls the leader and the fly (which themselves weigh almost nothing). These false casts allow the angler to adjust the distance relative to a spotted fish and to dry the fly. In this figure, it can be seen that under the tension of the line 11, the fly is subjected to air pressure 21. This impact deforms its component parts: the body 3, the tails 6, the thorax 14, and the entire hackle 4. It is then understood that the shoulder 7 prevents the hackle fibers from sticking to the shank x of the hook, which allows the fly to rest, dry, perfectly flat on the water.

[0066] Fig. 11 shows the detail of the superimposition of the roof-shaped wing 19 typical of caddisflies on a body 3 without cerci,

[0067] Fig. 12 also shows the superimposition of the flat, rounded wing 20, imitating the wings of stoneflies, onto a body 3 without cerci,

[0068] Fig. 13 shows the distribution of the thorax 14 and the body 3 in relation to the shank of the hook x, with approximately 1 / 4 at the front and 3 / 4 at the rear. The ends c are sealed with UV glue, and the positioning of the cerci 6, thus formed, constitutes a veritable little buoy. At this stage, this assembly is unsinkable.

[0069] Figure 14 shows the creation of the spent fly. This is achieved by replacing the rolled collar of the mayfly with wings made of floating material, natural or synthetic, positioned flat on either side of the fly.

[0070] Figure 15 shows a top view of Figure 14; the wings 4 can clearly be seen lying flat on either side of the fly.

[0071] Figure 16 shows the imitation of the mayfly, placed on water 13, constructed according to the process of the invention, with all the elements that characterize it: the body 3, thorax 14, cerci 6, collar 4, perfectly flat on the surface film of the water 13, but also the tuft 1 in line with the fly, It is remarkable to note the exit of the leader 11, from the top, as well as its impact 12, far from the artificial fly,

[0072] Fig. 17 shows Fig. 16 viewed from above, with the body 3, thorax 14, cerci 6, and frill 4, perfectly flat on the water,

[0073] Fig. 18 also shows the imitation of the mayfly obtained from the process of the invention with all the elements that compose it, body 3, cerci 6, thorax 14, collar 4, flat on the surface film 13, the visibility tuft 1 erect in the middle of the fly,

[0074] The detail of the tip of the caddisfly's wing 19, shaped like a roof, is shown in [Fig. 19],

[0075] Figure 20 shows the detail of the tip of wing 20, shaped into the rounded form of stoneflies,

[0076] Figure 21 shows the imitation of the ant obtained from the process of the invention; note the swollen abdomen 16, constructed on the submerged part of the hook; the two wings 15 installed perpendicularly to the shank and on the waterline, they are constructed of a floating material, natural or synthetic, to lie flat on the surface film 13.

[0077] Figure [Fig. 22] shows the fly of Figure [Fig. 21] in top view,

[0078] Figure 23 shows the imitation of the mayfly emergent, obtained from the method of the invention, placed on the surface film of the water 13, To achieve this, it is sufficient to dress the part of the shank of the hook submerged, to imitate the envelope of the nymph 16, and to make a winding of dubing 17 which simulates the torn part of the nymph from which the insect emerges.

[0079] Regardless of the embodiment, the shaft x extends along a first direction and the body 3 thorax 14 assembly extends along a second direction forming an angle greater than 45° with the shaft x.

[0080] According to a preferred assembly, the body 3 extends along a second direction substantially perpendicular to the first direction of the shaft x.

[0081] According to one embodiment, the body 3 and thorax 14 assembly is spaced from the first end of the shaft (y) by a distance substantially equal to 1 / 3 of the length of the shaft x, the first end having the eyelet 2 for being connected to a wire of a line.

[0082] According to one embodiment, the artificial fly comprises a body 3 and thorax 14 assembly extending between the first and second extremities, as well as cerci 6 extending from the body 3 and positioned at the level of the second extremity. The first extremity of the thorax 14 is spaced from the shaft x by a distance approximately equal to % of the length of the entire body 3 thorax 14.

[0083] According to one embodiment, installing a visibility tuft 1 at the upper end of the shank(s) behind the eyelet 2, followed by a few wraps of tying thread, will free access to the eyelet 2. It will be the only element that emerges at the surface of the water and is visible to the angler, as illustrated in Figures 9 and 16.

[0084] The attachments of the body assembly 3 and thorax 14, and those of the visibility tuft 1, will create some extra thickness. Shoulders 5 and 7 will generate the mini-groove 10. This mini-groove will "tame" the collar 4 during its wrapping, forcing it into a perfectly flat and neat position, as illustrated in Figures 9 and 16.

[0085] The artificial fly is characterized by the fact that this deliberately unbalanced assembly will function like the shuttlecock in badminton and will necessarily always land correctly on the water and will also always remain in perfect position, the submerged part of the hook perfectly playing the role of the keel of a sailboat, as illustrated in [Fig. 16].

[0086] The artificial fly is characterized by the fact that the position of the fly on the water "forces" the leader 11 to "come out" from the "top" by moving the impact 12 away from the artificial fly as far as possible, as illustrated in [Fig. 16].

[0087] The artificial fly is characterized by the fact that all the elements which compose it the body 3, the cerci 6, the thorax 14 the collar 4 will all lie perfectly flat on the water and they will all simultaneously be subjected to the law of surface tension of the water which gives this deliberately very stripped-down assembly a surprising buoyancy.

[0088] The artificial fly resulting from the invention is characterized by the fact that this deliberately very simple assembly will “stick” to the surface film 13 with only the tuft 1 emerging. The light, encountering no obstacle, will “pass through” the fly as it does through real insects (see [Fig. 16]).

[0089] The artificial fly resulting from the invention is characterized by the fact that the invention allows the imitation of all the families of insects which are of interest to fish first, and of course to the fisherman, which are: mayflies, caddisflies, stoneflies, terrestrials, etc....and this at the various stages of their evolution.

Claims

Demands

1. Artificial fly comprising: a. A hook having a shank (x) extending between first and second ends and having a first direction, the first end having an eye (2) for being attached to a line of a fishing line; b. A body (3) and thorax (14) assembly attached to the shank (x), extending between first and second ends and having a second direction; c. Cerci (6) attached to the body (3) and positioned at the second end of the body (3) and in its extension; d. The first direction of the shank (x) and the second direction of the body (3) and thorax (14) form an angle greater than 45°; e.Or the first direction of the shaft (x) and the second direction of the body (3) and thorax (14) are substantially perpendicular, characterized in that the whole body (3) and thorax (14) is spaced from the first end of the shaft (x) by a distance substantially equal to Us of the length (y) of the shaft (x).

2. Artificial fly according to the preceding claim, characterized in that the thorax (14) has a first end spaced from the shank (x) by a distance substantially equal to U of the length of the body (3) thorax (14) assembly and in that the end of the body (3) is spaced ¾ of the total length of the body (6) and thorax (14).

3. Artificial fly according to any one of the preceding claims, characterized in that the body (3) and the thorax (14) comprise a small, very flexible silicone tube, closed at both ends, on which the two cerci are arranged so that it functions as a small buoy and is absolutely unsinkable.