Bait
The biodegradable bait designed with hollow structure and thin-walled parts solves the problems of excessive degradation time and insufficient strength, and achieves high-strength and rapid degradation effects.
Patent Information
- Application Number
- CN202411409297.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2023-10-13
- Filing Date
- 2024-10-10
- Publication Date
- 2025-04-15
AI Technical Summary
The existing biodegradable resin baits degrade too long in the ocean and are insufficient in strength, making it difficult to meet the needs of fishing.
The bait body with a hollow structure is designed with a biodegradable resin and thin-walled part, and the degradation is delayed by reinforcement ribs and covering components, ensuring strength and shortening the degradation time.
It improves the strength of the bait, shortens the degradation time, reduces the environmental burden, and extends the use limit.
Smart Images

Figure CN119817537A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to fishing bait. Background Art
[0002] In the past, there was a problem that baits such as lures were left on the seabed. Therefore, it was considered to use low environmental burden materials such as biodegradable resins to form baits, but even marine biodegradable resins take a long time to degrade completely in the ocean / water.
[0003] For example, in Patent Documents 1 and 2, a fishing lure made of a biodegradable resin is formed hollow, so that when the outer shell is broken, water enters the hollow part and degradation is also promoted from the inside, thereby shortening the time until the degradation is completed.
[0004] Prior art literature
[0005] Patent document 1: Japanese Patent No. 3035438.
[0006] Patent document 2: Japanese Patent No. 3324069.
[0007] However, the physical properties related to strength of general biodegradable resins are lower than those of general-purpose engineering plastics, and a corresponding thickness is required to achieve the strength required for use as fishing bait. Therefore, it takes a considerable amount of time for the outer shell to degrade and water to penetrate into the inside, and there is room for improvement in this regard. Summary of the invention
[0008] The present invention has been made in consideration of such a situation, and an object of the present invention is to provide a fishing lure that can ensure the strength of the main body and shorten the time until degradation.
[0009] (1) A first embodiment of the fishing lure of the present invention is a fishing lure having a hollow main body formed of a raw material of a biodegradable resin, wherein the main body includes a load-bearing portion that receives a force from the outside and a thin-walled portion that is at least partially thinner than the load-bearing portion.
[0010] According to the first aspect of the fishing lure of the present invention, the load-receiving portion of the main body that requires strength can have sufficient strength, and the fishing lure made of the biodegradable resin can be used continuously.
[0011] Furthermore, in the present invention, since the body is provided with a thin-walled portion, when the bait remains in the sea (water), it can be degraded in a relatively short time.
[0012] (2) Preferably, in the fishing lure of claim 1, the load receiving portion is formed to be covered with a biodegradation delaying member that delays biodegradation of the biodegradable resin.
[0013] In this case, the load receiving portion covered with the biodegradation delaying member can have sufficient durability, and the fishing lure made of the biodegradable resin can be continuously used.
[0014] (3) According to claim 3 of the present invention, in the fishing lure of claim 1 or claim 2, the load-receiving portion is preferably at least one of a fishing line connecting portion, a fishing needle connecting portion, and a portion receiving an impact force from the outside.
[0015] In this case, at least one of the impact receiving parts such as the fishing line connecting part, the fishing needle connecting part, and the main body part that receives the external impact force can have sufficient strength against the external force, and the usable limit as a fishing bait can be extended.
[0016] (4) Aspect 4 of the present invention may be the fishing lure according to any one of aspects 1 to 3, wherein the thin-walled portion is covered with a detachable covering member that is water-soluble, water-degradable, or marine biodegradable.
[0017] In this case, degradation of the thin-walled portion can be delayed by replacing the covering member, and the fishing bait can be continuously used.
[0018] (5) A fifth aspect of the present invention may be the fishing lure according to any one of the first to fourth aspects, wherein the thin-walled portions are provided at a plurality of locations on the body facing each other in the width direction.
[0019] In this case, since the thin-walled portions are provided facing each other on the left and right, degradation can be further promoted.
[0020] (6) Scheme 6 of the present invention may also be used in the bait of scheme 4, characterized in that a recessed portion recessed toward the hollow side of the main body is formed on the surface of the main body, the thin-walled portion is formed on the bottom surface of the recessed portion, and the covering part is a snap-fitting part that fits into or blocks the recessed portion.
[0021] In this case, when the surface of the main body has a pocket hole for fixing the wing portion of the bait or a recessed portion constituting the eye of the bait, even if the bottom surface of the recessed portion is a thin-walled portion, the recessed portion can be fitted or blocked with a snap-fitting member to delay degradation of the thin-walled portion. Furthermore, by forming the recessed portion, the cover member can be easily attached and detached, and can be easily replaced.
[0022] (7) A seventh aspect of the present invention may be the fishing lure of the fourth aspect, wherein the covering member is an exterior component constituting a portion of the main body, or a fixing member fixing the exterior component.
[0023] In this case, for example, the wing portion of the lure itself (exterior component) or a fixing member for fixing the wing portion of the lure can be fitted into or blocked in the recessed portion, thereby delaying degradation of the thin-walled portion.
[0024] (8) Aspect 8 of the present invention may be the fishing lure of aspect 4, wherein the covering member has an indicator portion indicating a replacement time.
[0025] In this case, the angler can recognize the replacement time of the cover member by checking the indicator.
[0026] (9) Aspect 9 of the present invention may be the fishing lure of aspect 8, wherein the indicator portion is a component formed by layering a plurality of materials having different colors and dissolving rates, and a material having a fast dissolving rate is arranged on the surface side.
[0027] In this case, the angler can recognize the replacement time of the cover member by checking the change in color of the indicator portion.
[0028] (10) Aspect 10 of the present invention may be the fishing lure of aspect 8, wherein the indicator portion is a protrusion or a groove provided on the surface of the covering member.
[0029] In this case, the angler can recognize the replacement time of the cover member by checking the height of the protrusion of the indicator portion and the depth of the groove.
[0030] (11) Aspect 11 of the present invention may be the fishing bait according to any one of aspects 1 to 10, wherein the biodegradable resin is a marine biodegradable resin.
[0031] In this case, even if the bait is left in the sea unintentionally by the angler, such as when the bait gets tangled, the burden on the environment can be reduced by biodegradation of the bait.
[0032] Effects of the Invention
[0033] According to the fishing lure of the present invention, it is possible to ensure the strength of the main body and shorten the time until degradation. BRIEF DESCRIPTION OF THE DRAWINGS
[0034] Figure 1 It is a side view showing the fishing lure according to the embodiment of the present invention.
[0035] Figure 2 yes Figure 1 A perspective view of the bait shown.
[0036] Figure 3 yes Figure 1 The II line cross-sectional view is shown.
[0037] Figure 4 yes Figure 1 The II-II line cross-sectional view is shown.
[0038] Figure 5It is a side view of the fishing lure of the second embodiment.
[0039] Figure 6 Yes means Figure 5 Side view of the inner surface of the fishing lure.
[0040] Figure 7 Yes means Figure 6 A side view of the state where the linear component is removed. DETAILED DESCRIPTION
[0041] Hereinafter, embodiments of the fishing lure of the present invention will be described with reference to the accompanying drawings. In addition, in each of the drawings, the scale of each component may be appropriately changed as necessary in order to make each component a size that can be observed and confirmed.
[0042] (First embodiment)
[0043] Figure 1 It is a side view of the fishing lure 1 according to the first embodiment. Figure 2 yes Figure 1 A perspective view of the fishing lure 1 is shown.
[0044] like Figure 1 and Figure 2 As shown, the bait 1 of the embodiment is used for fishing, and is a bait or lure in the form of a simulated shrimp formed of a material made of a biodegradable resin as an example.
[0045] Here, in the fishing lure 1, the direction in which the head and the tail are connected in a straight line is defined as the front-back direction X1, the head side is defined as the front, the front side, and the tail side is defined as the rear, the rear side. In addition, the following description will define the lateral direction orthogonal to the front-back direction X1 when viewed from above as the left-right direction X2.
[0046] The lure 1 includes a lure body 10 formed by joining a pair of main bodies 10A and 10B divided into two parts, a shaft portion 20 protruding from a rear end portion 10b of the lure body 10 and partially inserted into the lure body 10 in the axial direction on a central axis O1 along the front-rear direction X1 of the lure body 10, and an umbrella needle 30 (connecting portion) provided on the outside of the lure body 10 in the shaft portion 20.
[0047] The lure body 10 is formed into a streamline shape imitating a fish, and is integrally formed by bonding or welding the peripheral edges of a pair of main bodies 10A and 10B. The lure body 10 includes a head 11, a main body 12, and a tail 13 which are integrally provided.
[0048] Alternatively, the head portion 11 , the main body portion 12 , and the tail portion 13 may be separated from each other so that the respective portions can swing freely in the left-right direction X2 . Figure 1 as well as Figure 2In the drawing, the left side of the drawing is the front end portion 10a of the lure body 10 on the head portion 11 side, and the right side of the drawing is the rear end portion 10b of the lure body 10 on the tail portion 13 side.
[0049] The lure body 10 has the largest cross section at the center 10e in the front-rear direction X1. That is, the lure body 10 becomes thicker from the front end 10a toward the center 10e and becomes thinner from the center 10e toward the rear end 10b, forming a smooth curve as a whole.
[0050] The main body 12 of the fishing lure body 10 is formed with a hollow portion 100. The head 11 and the tail 13 are solid. The pair of main bodies 10A and 10B are formed of a raw material of a biodegradable resin. Here, as the biodegradable resin, a marine biodegradable resin composed of bioplastics, for example, cellulose acetate and PHA (polyhydroxyalkanoate) can be used. In particular, among PHAs, P3HB (poly [(R)-3-hydroxybutyrate]), P3HB4HB (poly [(R)-3-hydroxybutyrate-co-4-hydroxybutyrate] as its copolymer), P3HBV (poly [(R)-3-hydroxybutyrate-co-(R)-3-hydroxyvalerate]), P3HBH (poly [(R)-3-hydroxybutyrate-co-(R)-3-hydroxyhexanoate]) and the like are materials with excellent biodegradability (marine biodegradability) in seawater.
[0051] The inner surfaces 10c of the pair of main bodies 10A and 10B facing the hollow part 100 are provided with reinforcement ribs 101 protruding toward the hollow part 100. The reinforcement ribs 101 extend in the up-down direction and are arranged so that the rib surface intersects the front-back direction X1. By providing the reinforcement ribs 101, the main bodies 10A and 10B formed of the raw material made of biodegradable resin are reinforced. Therefore, the strength of the lure body 10 is improved and it can withstand external pressure.
[0052] A pair of needles 30 are mounted on the rear end of the shaft 20 that is exposed from the lure body 10. The rear end 10b of the lure body 10 has engagement holes 15 that engage with the shaft 20. An annular member 16 extending in the circumferential direction is fitted on the peripheral edge of the tail 13 of the pair of main bodies 10A, 10B.
[0053] In addition, if Figure 1As shown in FIG. 1 , the fishing line mounting shaft 40 is provided at the front end 10a of the lure body 10. The fishing line mounting shaft 40 has an annular fishing line stop 41 for connecting the fishing line at the front end, and an annular engaging ring 42 engaged with the head 11 in an inserted state at the rear end. The head 11 of the lure body 10 has an insertion portion 18 into which the rear side portion of the fishing line mounting shaft 40 is inserted and fixed. The insertion portion 18 has an insertion hole 181 extending backward from the front end 10a of the lure body 10, and an engaging hole 182 for engaging the engaging ring 42 of the fishing line mounting shaft 40 with the inner side of the insertion hole 181. The fishing line mounting shaft 40 is fixed by engaging with the insertion portion 18 in a non-adhesive and non-threaded manner while being sandwiched by the pair of main bodies 10A and 10B.
[0054] In addition, if Figure 1 and Figure 2 As shown in FIG. 1 , a fixing member 50 (covering member, engaging member) constituting a part of the main body, such as a wing 53 (exterior component) for fixing the lure, is provided at the front of the main body 12 of the lure body 10. The fixing member 50 includes a cylindrical shaft portion 51 engaging with a recessed portion 12a (described later) of the main body 12 of the lure body 10, and a wing fixing portion 52 (protrusion) integrally provided on the surface of the cylindrical shaft portion 51 to which the wing 53 is fixed (see FIG. 1 ). Figure 3 The wing portion 53 is composed of a plurality of linear components extending forward from the wing portion fixing portion 52.
[0055] The main bodies 10A and 10B include a load receiving portion 14 (fishing line connecting portion 14A, fishing needle connecting portion 14B, wing connecting portion 14C) for receiving external tensile force caused by the above-mentioned umbrella needle 30, fishing line mounting shaft portion 40 and fixing member 50.
[0056] The fishing line connecting portion 14A in the lure body 10 is a portion of the head 11 that forms the insertion portion 18 that supports the fishing line mounting shaft portion 40 .
[0057] like Figure 1 As shown, the fishing needle connecting part 14B of the lure body 10 is a part of the tail 13 where the engaging hole 15 for engaging with the shaft 20 of the umbrella needle 30 is formed. The surfaces of the fishing line connecting part 14A and the fishing needle connecting part 14B are covered with a cellulose acetate resin that degrades more slowly than the marine biodegradable resin.
[0058] Figure 3 yes Figure 1 The II line cross-sectional view is shown. Figure 4 yes Figure 1 The II-II line cross-sectional view is shown.
[0059] like Figure 3 and Figure 4As shown in FIG. 1 , the wing connection portion 14C (impacted portion) of the lure body 10 is formed by the pocket-shaped recessed portion 12a of the cylindrical shaft portion 51 of the fitting fixing member 50 of the main body 12. The recessed portion 12a is recessed toward the hollow side of the main bodies 10A and 10B. A thin-walled portion 12b thinner than the wing connection portion 14C is provided near the wing connection portion 14C of the main body 12 of the lure body 10 and on the bottom surface of the recessed portion 12a.
[0060] The fixing member 50 is formed of a biodegradation delaying member that is water-soluble, water-degradable or marine biodegradable and delays the biodegradation of the biodegradable resin. The thin-walled portion 12b is formed to be covered by the fixing member 50 engaged with the engaging recess 12a. The thin-walled portion 12b is disposed facing each other in the width direction in the pair of main bodies 10A and 10B.
[0061] The wing fixing portion 52 of the fixing member 50 functions as an indicator portion for indicating the biodegradation progress of the biodegradable resin and indicating the replacement time of the fishing lure 1. As the indicator portion configured in the form of the wing fixing portion 52, a member in which a plurality of materials having different colors and dissolution rates are layered and a material having a fast dissolution rate is arranged on the surface side may be used.
[0062] The wing fixing portion 52 constituting the indicator portion is a protrusion protruding outward from the lure body 10 , and is formed of a marine biodegradable resin made of the same bioplastic as the lure body 10 .
[0063] Next, regarding the effect of the bait 1 thus constructed, based on Figure 1-Figure 4 Explain in detail.
[0064] The fishing lure 1 of this embodiment has hollow main bodies 10A and 10B made of a raw material of a biodegradable resin. The main bodies 10A and 10B include a load receiving portion 14 (fishing line connecting portion 14A, fishing needle connecting portion 14B, wing connecting portion 14C) that receives external force, and a thin-walled portion 12b that is at least partially thinner than the load receiving portion 14.
[0065] According to the fishing lure 1 of this embodiment, the load receiving portion 14 of the main body 10A, 10B which requires strength can have sufficient strength, and the fishing lure 1 made of the biodegradable resin can be used continuously.
[0066] Furthermore, in the present embodiment, since the thin-walled portion 12 b is provided in the main bodies 10A and 10B, the fishing lure 1 can be degraded in a relatively short time when it remains in the sea (water).
[0067] In addition, in this embodiment, the load receiving portion 14 is formed to be covered with a biodegradation delaying member that delays the biodegradation of the biodegradable resin. By configuring in this way, the load receiving portion 14 covered with the biodegradation delaying member can have sufficient durability, and the biodegradable resin fishing lure 1 can be used continuously.
[0068] Furthermore, in the present embodiment, the load receiving portion 14 is at least one of the fishing line connection portion 14A, the fishing needle connection portion 14B, and the wing connection portion 14C (impact receiving portion) that receives the impact force from the outside. Therefore, at least one of the fishing line connection portion 14A, the fishing needle connection portion 14B, and the wing connection portion 14C can have sufficient strength against the external force, and the use limit of the lure 1 can be extended.
[0069] In addition, in this embodiment, the thin-walled portion 12b of the main body 12 is covered by a detachable fixing member 50 (covering member) having water solubility, water degradability or marine biodegradability. Thus, the degradation of the thin-walled portion 12b can be delayed by replacing the fixing member 50, and the fishing lure 1 can be used continuously.
[0070] In addition, in this embodiment, thin-walled portions 12b are provided in the body 10A, 10B at multiple locations facing each other in the width direction. With such a configuration, thin-walled portions 12b are provided facing each other on the left and right sides, so that they can be uniformly degraded on the left and right sides.
[0071] In addition, in this embodiment, a snap-in recess 12a that is recessed toward the hollow side of the main body 10A, 10B is formed on the surface of the main body 10A, 10B. A thin-walled portion 12b is formed on the bottom surface of the snap-in recess 12a. The fixing component 50 is a snap-in component that fits into the snap-in recess 12a. Thus, in the case where the snap-in recess 12a that constitutes a bag hole for fixing the wing portion of the bait, etc., is provided on the surface of the main body 10A, 10B as in this embodiment, even if the bottom surface of the snap-in recess 12a is made into the thin-walled portion 12b, the degradation of the thin-walled portion 12b can be delayed by fitting the fixing component 50 into the snap-in recess 12a. Furthermore, by forming the snap-in recess 12a, the fixing component 50 has a structure that is simple to assemble and detach, and can be easily replaced.
[0072] In this embodiment, the fixing member 50 fixes the wing 53 as an exterior component constituting a part of the main body 10A, 10B. Thus, the fixing member 50 fixing the wing 53 can be fitted into the engagement recess 12a, and degradation of the thin wall portion 12b can be delayed.
[0073] In addition, in this embodiment, the fixing member 50 has an indicator portion indicating the replacement time. Thus, the angler can recognize the replacement time of the fixing member 50 by checking the indicator portion.
[0074] In this embodiment, the indicator is a member formed by layering a plurality of materials having different colors and dissolving rates, with a material having a faster dissolving rate disposed on the surface layer side. Thus, the angler can recognize the replacement time of the cover member 50 by checking the change in color of the indicator.
[0075] In this embodiment, the indicator is the wing fixing portion 52 (protrusion) provided on the surface of the fixing member 50. Thus, the angler can recognize the replacement time of the fixing member 50 by checking the height of the wing fixing portion 52 of the indicator.
[0076] In this embodiment, the biodegradable resin is a marine biodegradable resin. Therefore, even if the bait 1 is left in the sea by the angler's unintentional action, such as when the bait 1 gets snagged, the bait 1 can be biodegraded to reduce the burden on the environment.
[0077] According to the fishing lure 1 of this embodiment configured as described above, it is possible to shorten the time until degradation while ensuring the strength of the main body.
[0078] (Second embodiment)
[0079] Figure 5 It is a perspective view of the fishing lure 1A according to the second embodiment. Figure 6 Yes means Figure 5 A side view of the inner surface of the fishing lure 1A. Figure 7 Yes means Figure 6 A side view showing a state where the linear member 60 is removed.
[0080] like Figure 5 and Figure 6 As shown in FIG. 1 , the fishing lure 1A of the second embodiment includes a fishing line connecting portion 14A (load receiving portion) of the head portion 11, a first fishing needle connecting portion 14B (load receiving portion) of the tail portion 13, and a second fishing needle connecting portion 14D (load receiving portion) of the body portion 12. The fishing line connecting portion 14A, the first fishing needle connecting portion 14B, and the second fishing needle connecting portion 14D receive external tensile force from the eyelet 61 and the hook eyes 62A and 62B.
[0081] like Figure 6 and Figure 7 As shown, a groove-shaped engagement groove 17 that engages with the linear member 60 forming the eyelet 61 and the hook eye 62 is formed on the inner surface 10 c of the main body 10A, 10B.
[0082] The linear member 60 is made of a water-soluble, water-degradable or marine biodegradable material, for example, a wire having an outer diameter of about 2 mm. The linear member 60 has a line eye 61 disposed at the front end 10a of the lure 1A and connected to the fishing line, and hook eyes 62 (62A, 62B) disposed at the lower surface 10d and the rear end 10b of the main body 12 and connected to the fishing needle (hook) 31. That is, the linear member 60 is composed of a single wire as a whole, and a part of the linear portion forms a portion that functions as the line eye 61 and the hook eyes 62A, 62B.
[0083] The eye 61 and the pair of hook eyes 62A, 62B are configured such that the curved portions 61a, 62a, 62b of the linear member 60 are bent and the curved portions 61a, 62a, 62b are protruded toward the outside of the lure body 10. The eye 61 protrudes forward from the front end portion 10a of the lure body 10. The first hook eye 62A protrudes downward from the lower surface 10d of the main body 12 of the lure body 10. The second hook eye 62B protrudes backward from the rear end portion 10b of the tail portion 13 of the lure body 10. The eye 61 is connected to the first hook eye 62A via a first straight portion 63 extending in the front-rear direction X1. The first hook eye 62A and the second hook eye 62B are connected via a second straight portion 64 extending in the front-rear direction X1.
[0084] The fishing line connecting portion 14 is a portion formed by a first supporting portion 171 of the engaging groove 17 of the head portion 11 that engages with the eyelet 61. The first supporting portion 171 supports the base end portion 61b of the eyelet 61.
[0085] The first fishing needle connecting portion 14B is a portion formed by the second supporting portion 172 of the tail portion 13 that engages with the engaging groove 17 of the first hook eye 62A. The second supporting portion 172 supports the base end portion 62c of the first hook eye 62A.
[0086] The second fishing needle connecting portion 14D is a portion formed by the third supporting portion 173 (thin wall portion) of the engaging groove 17 of the body portion 12 that engages with the second eye 62B. The third supporting portion 173 supports the base end portion 62d of the second eye 62B.
[0087] On the back side of the fishing lure 1A (the side opposite to the linear member 60), a pocket-shaped recessed portion 12c having a female threaded portion formed on the inner peripheral surface and a thin-walled portion 12d formed on the bottom surface is provided. A sealing member 54 (covering member, engaging member) having a male threaded portion on the outer peripheral surface is threadedly engaged with the female threaded portion of the recessed portion 12c. The thin-walled portion 12d is covered by the sealing member 54 (covering member, engaging member) threadedly engaged with the female threaded portion of the recessed portion 12c. The sealing member 54 is made of, for example, a magnesium alloy and dissolves in the sea without placing a high burden on the environment.
[0088] According to the fishing lure 1A of the second embodiment, the load receiving portion 14 of the main body 10A, 10B which requires strength can have sufficient strength, and the fishing lure 1A made of the biodegradable resin can be used continuously.
[0089] Furthermore, in the present embodiment, when the fishing lure 1A remains in the sea (water), the blocking member 54 is dissolved to expose the thin-walled portion 12d, and degradation can be completed in a relatively short time.
[0090] In addition, when the fishing lure 1A is used continuously, the blocking member 54 may be replaced regularly.
[0091] The above describes the embodiments of the fishing bait of the present invention, but these embodiments are provided as examples and are not intended to limit the scope of the invention. The embodiments can be implemented in various other ways, and various omissions, substitutions, and changes can be made without departing from the gist of the invention. The embodiments and their modifications include, for example, substantially the same and equivalent solutions that can be easily thought of by those skilled in the art.
[0092] For example, in the above-mentioned embodiment, the thin-walled portion 12b constituting the main body 12 is disposed facing each other in the width direction at a plurality of locations of the pair of main bodies 10A and 10B, but the position and shape of the thin-walled portion are not limited to the above-mentioned embodiment and can be changed. For example, in the above-mentioned first embodiment, the pocket hole in the surface of the main body for engaging the fixing member 50 such as the wing of the bait is provided as the engaging recessed portion 12a, and the bottom surface of the engaging recessed portion 12a is provided as the thin-walled portion, but the present invention is not limited thereto. For example, in the case where there is a recessed portion constituting the target portion of the bait, the bottom surface of the recessed portion can also be provided as the thin-walled portion.
[0093] Furthermore, the present invention is not limited to the structure in which the cylindrical shaft portion 51 of the fixing member 50 (covering member, engaging member) is fitted into the engaging recess 12a as in the first embodiment described above, and an engaging member that blocks the engaging recess 12a may be used.
[0094] Furthermore, in this embodiment, the fishing line connection part 14A, the fishing needle connection parts 14B and 14D, and the wing connection part 14C are exemplified as the load receiving part, but the present invention is not limited to these parts.
[0095] Furthermore, the shape of the bait, the number of divisions, and other structures, and the shape, number, and attachment positions of the needles attached to the bait can be changed as appropriate.
[0096] Various bioplastics are exemplified as marine biodegradable resins, but the material itself may not be generated from organisms, and for example, PBSA, PCL, PA4, and materials obtained by adding marine biodegradable additives to biodegradable materials are also conceivable.
[0097] Description of Reference Numerals
[0098] 1. 1A Bait
[0099] 10Bait body
[0100] 10A, 10B main body
[0101] 10a Front end
[0102] 10b rear end
[0103] 10c inner surface
[0104] 11Head
[0105] 12 Main body
[0106] 12a, 12c recessed parts
[0107] 12b, 12d thin wall part
[0108] 13 tail
[0109] 14 Load bearing part
[0110] 14A fishing line connection
[0111] 14B fishing needle connection
[0112] 14C Wing connection part (impacted part)
[0113] 14D 2nd fishing needle connection part (load receiving part)
[0114] 17 snap-in slots
[0115] 171 1st support part
[0116] 172 Second support part
[0117] 173 The third support
[0118] 30 Umbrella Needles
[0119] 31 fishing needle
[0120] 40 fishing line installation shaft
[0121] 50Fixing parts (covering parts, engaging parts)
[0122] 51 tube shaft
[0123] 52 wing fixing portion (protrusion)
[0124] 53 Wing (exterior parts)
[0125] 54 Sealing component (covering component, engaging component)
[0126] 60Linear parts
[0127] 61 line eye
[0128] 62, 62A, 62B hook eye
[0129] X1 front and rear direction
[0130] X2 left and right direction.
Claims
1. A fishing lure having a hollow body formed of a raw material of a biodegradable resin, The main body includes a load receiving portion that receives a force from the outside, and a thin-walled portion at least partly thinner than the load receiving portion.
2. The fishing bait according to claim 1, characterized in that The load receiving portion is formed to be covered with a biodegradation delaying member that delays biodegradation of the biodegradable resin.
3. The fishing bait according to claim 1, characterized in that: The load receiving portion is at least one of a fishing line connecting portion, a fishing needle connecting portion, and an impact receiving portion that receives an impact force from the outside.
4. The fishing bait according to claim 1, characterized in that The thin-walled portion is covered by a detachable covering member, and the covering member is water-soluble, water-degradable, or marine biodegradable.
5. The fishing bait according to claim 1, characterized in that The thin-walled portions are disposed at a plurality of locations on the main body facing each other in the width direction.
6. The fishing bait according to claim 4, characterized in that A concave portion is formed on the surface of the main body and is recessed toward the hollow side of the main body. The thin-walled portion is formed on the bottom surface of the recessed portion. The cover member is an engaging member that fits into or closes the recess.
7. The fishing bait according to claim 4, characterized in that The cover member is an exterior component constituting a part of the main body or a fixing component fixing the exterior component.
8. The fishing bait according to claim 4, characterized in that The cover member has an indicator portion indicating a replacement time.
9. The fishing bait according to claim 8, characterized in that The indicator portion is a member in which a plurality of materials having different colors and dissolving rates are layered, and a material having a fast dissolving rate is arranged on the surface layer side.
10. The fishing bait according to claim 8, characterized in that The indicator portion is a protrusion or a groove provided on the surface of the cover member.
11. The fishing bait according to any one of claims 1 to 10, characterized in that The aforementioned biodegradable resin is a marine biodegradable resin.