Bait

Abstract

A user can accurately grasp the use limit of the bait. The present invention provides a bait having a main body (10A, 10B) formed from a biodegradable resin raw material, the main body (10A, 10B) being provided with a fishing line connection part (14A) and a fishing needle connection part (14B) that receive an external tensile force, and an indication part (50) that is provided to the fishing line connection part (14A) and the fishing needle connection part (14B) and that displays the degree of progress of biodegradation of the biodegradable resin, and the indication part (50) being provided to the fishing line connection part (14A) and the fishing needle connection part (14B). The indicating part (50) is a protruding part protruding outwards from the bait body (10).

Description

Technical Field

[0001] The present invention relates to fishing bait. Background Art

[0002] Conventionally, fishing lures made of biodegradable resins have been difficult to put into practical use because anglers, as users, have difficulty or are unable to grasp the time margin until the lures become unusable due to decomposition.

[0003] In contrast, a fishing bait is known in which the surface of a fishing bait made of a biodegradable material is covered with a film formed of a waterproof synthetic resin material or a colored synthetic resin material, so that the moment when the film is peeled off or decomposed in the use environment can be identified, thereby allowing the angler to grasp the start of decomposition (for example, refer to Patent Document 1).

[0004] Patent document 1: Japanese Patent No. 3035438.

[0005] Problems to be solved by the invention

[0006] However, conventional fishing lures have the following problems.

[0007] That is, in the case of a fishing bait made of a biodegradable material as shown in Patent Document 1, the fishing bait does not actually become unusable immediately after it starts to decompose. In most cases, the part whose strength decreases due to decomposition is damaged and becomes unusable. In addition, depending on the environment and method of use of the fishing bait, the coating is easily peeled off due to friction, etc. Therefore, even if the fishing bait is in a usable state, there is a possibility that the angler will discard the fishing bait. Therefore, it is necessary for anglers to accurately understand the usage limit of fishing baits made of biodegradable resins, 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 bait that enables a user to accurately grasp the usage limit of the fishing bait.

[0009] Technical means to solve problems

[0010] (1) A first aspect of the fishing lure of the present invention is a fishing lure having a main body formed of a raw material of a biodegradable resin, characterized in that the main body includes a connecting portion that receives a tensile force from the outside, and an indicator portion provided at the connecting portion to indicate the degree of biodegradation of the biodegradable resin.

[0011] According to the first embodiment of the fishing bait of the present invention, an indicator portion that can be integrally formed is provided as the main body, so the user as an angler can visually confirm the shape of the indicator portion. In addition, the indicator portion is provided at a location close to the connection portion that is a portion where strength becomes a problem during use (a portion that is easily damaged), so the degree of biodegradation of the connection portion of the main body can be accurately identified based on the state of the indicator portion, and the angler can use the fishing bait to near the limit of use. By using the fishing bait with the expiration date in mind in this way, the fishing bait that is close to the expiration date or has exceeded the expiration date can be appropriately disposed of in a method that does not impose a high burden on the environment.

[0012] (2) According to a second aspect of the present invention, in the lure of the first aspect, the indicator portion is preferably a protrusion that protrudes outward from the lure body.

[0013] In this case, the protrusion is a shape that protrudes outward from the lure body, and the change in the protrusion length and thickness of the protrusion due to biodegradation becomes significant. Therefore, the user can easily visually see the protrusion and can easily and accurately recognize the degree of biodegradation.

[0014] (3) According to claim 3 of the present invention, in the fishing lure of claim 2, it is preferred that the protrusion is a thin-walled fin.

[0015] In this case, the fin is a thin plate, so the change in the protrusion length and thickness of the protrusion due to biodegradation is more obvious. Therefore, the user can easily visually check the fin and accurately recognize the progress of biodegradation.

[0016] (4) Aspect 4 of the present invention may be the bait of aspect 3, characterized in that the thickness of the fin is not less than 0.5 mm and not more than 2 mm.

[0017] In this case, the change in the protruding length and the change in the thickness of the fin due to biodegradation appear more prominently, and the user can easily visually check the fin and accurately recognize the progress of biodegradation.

[0018] (5) A fifth aspect of the present invention may be the fishing lure of the second aspect, wherein the protrusion is cylindrical.

[0019] In this case, since the protrusion is cylindrical, the user can easily visually observe it from all directions and can accurately recognize the degree of biodegradation.

[0020] (6) Aspect 6 of the present invention may be the fishing lure of aspect 5, characterized in that the diameter of the cylindrical protrusion is not less than 1.0 mm and not more than 2.0 mm.

[0021] In this case, the diameter of the cylindrical protrusion is 1.0 mm or more, so it can be easily visually observed, and is 2.0 mm or less, so it is possible to prevent the movement of the bait from being disturbed due to fluid resistance.

[0022] (7) A seventh aspect of the present invention may be the fishing lure according to any one of the first to sixth aspects, wherein the connecting portion is at least one of a fishing line connecting portion and a fishing needle connecting portion.

[0023] In this case, when at least one of the fishing line connection part and the fishing needle connection part is provided, the use limit of the bait can be grasped and used by checking the biodegradation progress of the indicator part provided at a position close to the connection part with low strength.

[0024] (8) Aspect 8 of the present invention may be the fishing lure according to any one of aspects 1 to 7, wherein the biodegradable resin is a marine biodegradable resin composed of bioplastics.

[0025] In this case, the burden on the environment can be reduced as a whole in the entire stage of manufacturing the bait, not only when the bait remains in the sea.

[0026] Effects of the Invention

[0027] According to the fishing lure of the present invention, the user can accurately grasp the usage limit of the fishing lure. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a side view of the fishing lure according to the first embodiment of the present invention.

[0029] Figure 2 It is a side view of the fishing lure of the second embodiment.

[0030] Figure 3 Yes means Figure 2 Side view of the inside of the bait.

[0031] Figure 4 Yes means Figure 3 A side view of the state where the linear component is removed. DETAILED DESCRIPTION

[0032] 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.

[0033] (First embodiment)

[0034] Figure 1 It is a side view of the fishing lure 1 according to the first embodiment.

[0035] like Figure 1 As shown, the bait 1 of the embodiment is used for fishing, and is a bait imitating the shape of a shrimp formed of a material made of a biodegradable resin, that is, a so-called lure, as an example.

[0036] 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 is made by defining the lateral direction orthogonal to the front-back direction X1 when viewed from above as the left-right direction X2.

[0037] 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.

[0038] 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.

[0039] 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 In the drawing, the left side of the drawing is the front end portion 10a of the head portion 11 of the lure body 10, and the right side of the drawing is the rear end portion 10b of the tail portion 13 of the lure body 10.

[0040] The lure body 10 has a shape with the largest cross section in the center in the front-rear direction X1. That is, the lure body 10 becomes thicker from the front end 10a toward the center and becomes thinner from the center toward the rear end 10b, forming a smooth curve as a whole.

[0041] 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.

[0042] The inner side surface 10c of the pair of main bodies 10A and 10B facing the hollow part 100 is provided with a reinforcing rib 101 protruding toward the hollow part 100. The reinforcing rib 101 extends in the up-down direction and is arranged so that the rib surface intersects the front-back direction X1. By providing the reinforcing rib 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.

[0043] 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.

[0044] In addition, if Figure 1 As 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 stopper 41 for connecting the fishing line at the front, and an annular engaging ring 42 engaged with the head 11 in an inserted state at the rear. The head 11 of the lure body 10 has an insertion portion 18 into which the rear portion (engaging ring 42) 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 portion 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.

[0045] The main bodies 10A and 10B include connecting parts 14 (fishing line connecting part 14A and fishing needle connecting part 14B), and indicator parts 50 (51 and 52). The connecting parts 14 (fishing line connecting part 14A and fishing needle connecting part 14B) bear the tensile force from the outside caused by the above-mentioned umbrella needle 30 and the fishing line mounting shaft part 40, and the indicator parts 50 (51 and 52) are provided in these connecting parts 14A and 14B to display the degree of biodegradation of the biodegradable resin.

[0046] The fishing line connection part 14A of the lure body 10 is formed by the insertion part 18 of the fishing line mounting shaft part 40 of the support head 11. The fishing needle connection part 14B of the lure body 10 is formed by the engagement hole 15 of the shaft part 20 of the umbrella needle 30 of the tail part 13.

[0047] The indicator portion 50 is a protrusion protruding outward from the lure body 10, and is formed of a marine biodegradable resin composed of the same bioplastic as the lure body 10. The indicator portion 50 includes a cylindrical protrusion 51 protruding upward from the upper surface 14a of the fishing line connecting portion 14A, and a thin-walled first fin 52 protruding downward from the lower surface 14b of the fishing needle connecting portion 14B.

[0048] The cylindrical protrusion 51 is cylindrical. The diameter of the cylindrical protrusion 51 is set to be 1.0 mm or more and 2.0 mm or less. The height of the cylindrical protrusion 51 is appropriately set according to the diameter, but it is preferably a size that has little influence on the fluid resistance generated by the use of the bait 1. The cylindrical protrusion 51 that functions as an indicator is preferably provided in a portion close to the connection portion, and is preferably located slightly above the insertion portion 18 (engagement hole portion 182) of the fishing line connection portion 14A.

[0049] The first fin 52 also functions as a tail fin for stabilizing the movement of the lure 1. The thickness of the first fin 52 is set to be not less than 0.5 mm and not more than 2.0 mm, and preferably to be not less than 0.8 mm and not more than 1.2 mm.

[0050] Next, based on Figure 1 , the function of the bait 1 constructed in this way will be described in detail.

[0051] The fishing lure 1 of this embodiment has main bodies 10A and 10B made of a raw material of a biodegradable resin. The main bodies 10A and 10B include connecting parts 14 (fishing line connecting part 14A and fishing needle connecting part 14B) that receive external tensile force, and an indicator 50 provided on the connecting part 14 to indicate the degree of biodegradation of the biodegradable resin.

[0052] According to the fishing lure 1 of this embodiment, the indicator portion 50 that can be integrally formed as the main body 10A, 10B is provided, so the user as an angler can visually confirm the shape of the indicator portion 50. In addition, the indicator portion 50 is provided near the portion where strength becomes a problem during use (a portion that is easily damaged), that is, the connection portion 14, so the degree of biodegradation of the connection portion 14 of the main body can be accurately recognized based on the state of the indicator portion 50, and the angler can use the fishing lure 1 to near the limit of use. For example, it can be visually confirmed that the edge of the indicator portion 50 is decomposed and the shape is broken.

[0053] By using the bait 1 with the expiration date in mind, the bait 1 that is close to the expiration date or has exceeded the expiration date can be appropriately disposed of without placing a heavy burden on the environment.

[0054] Furthermore, in the present embodiment, the indicator 50 is a protrusion protruding outward from the lure body 10. In this case, the protrusion is in a shape protruding outward from the lure body 10, and the change in the protrusion length and thickness of the protrusion due to biodegradation becomes significant. Therefore, the user can easily visually check the protrusion and can easily and accurately recognize the degree of biodegradation.

[0055] Furthermore, in the present embodiment, the protrusion is a thin-walled first fin 52, so the change in the protrusion length and thickness of the protrusion due to biodegradation is more significant. For example, it can be confirmed that the edge of the first fin 52 is decomposed and the shape collapses, and it becomes unable to function as a fin. Therefore, the user can easily visually check the first fin 52 and accurately recognize the degree of biodegradation.

[0056] In this embodiment, the thickness of the first fin 52 is 0.5 mm to 2.0 mm. Thus, the change in the protruding length and thickness of the fin due to biodegradation is more obvious, and the user can easily visually check the first fin 52 and accurately recognize the degree of biodegradation.

[0057] Furthermore, in the present embodiment, since the indicator portion 50 as the protrusion is the cylindrical protrusion 51 , the user can easily visually see from all directions and can accurately recognize the degree of biodegradation progress.

[0058] In this embodiment, the diameter of the cylindrical protrusion 51 is 1.0 mm to 2.0 mm. The cylindrical protrusion 51 is 1.0 mm to 2.0 mm, so it can be easily seen, and is 2.0 mm to prevent the movement of the lure 1 from being disturbed by fluid resistance.

[0059] In addition, in the present embodiment, the connection part 14 is at least one of the fishing line connection part 14A and the fishing needle connection part 14B. Therefore, when at least one of the fishing line connection part 14A and the fishing needle connection part 14B is provided, by checking the biodegradation progress of the indicator part 50 provided at a position close to the connection part 14 with low strength, the use limit of the bait 1 can be grasped and used.

[0060] In addition, in the present embodiment, the biodegradable resin is a marine biodegradable resin composed of bioplastics. Thus, the burden on the environment can be reduced as a whole, including the manufacturing stage of the fishing bait, not only when the fishing bait 1 remains in the sea.

[0061] According to the fishing lure 1 of the present embodiment configured as described above, the user can accurately grasp the usage limit of the fishing lure 1 .

[0062] (Second embodiment)

[0063] Figure 2 It is a side view of the fishing lure 1A according to the second embodiment. Figure 3 Yes means Figure 2 A side view of the inner side of the fishing lure 1A. Figure 4 It means in Figure 3 A side view showing a state in which the linear member 60 is removed.

[0064] like Figure 2 and Figure 3 As shown, the fishing lure 1A of the second embodiment is provided with an indicator portion 50 (protrusion) functioning as an indicator at each of the fishing line connecting portion 14C of the head portion 11 and the fishing needle connecting portion 14D of the tail portion 13 .

[0065] like Figure 3 and Figure 4 As shown, a groove-shaped engagement groove 17 that engages with the linear member 60 formed with the eye 61 and the hook eye 62 is formed on the inner side surface 10 c of the main body 10A, 10B.

[0066] The linear member 60 is a metal rod-shaped member, and for example, a high-strength thick wire material with an outer diameter of about 2 mm is used. The linear member 60 has a line eye 61 arranged at the front end portion 10a of the fishing lure 1A and connected to the fishing line, and hook eyes 62 (62A, 62B) arranged at the lower surface 10d and the rear end portion 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 material 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.

[0067] The eye 61 and the pair of hook eyes 62A, 62B form curved portions 61a, 62a, 62b that bend the linear member 60, and are configured so that the curved portions 61a, 62a, 62b protrude to 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.

[0068] The main bodies 10A and 10B include the connection parts 14 (fishing line connection part 14C and fishing needle connection part 14D) that receive the tensile force from the outside caused by the eye 61 and the second hook eye 62B.

[0069] The fishing line connection part 14C of the lure body 10 is formed by the first support part 171 of the engagement groove 17 of the head 11 that engages with the eye 61. The fishing needle connection part 14D of the lure body 10 is formed by the second support part 172 of the engagement groove 17 of the tail 13 that engages with the second eye 62B. The first support part 171 supports the base end 61b of the eye 61. The second support part 172 supports the base end 62c of the second eye 62B.

[0070] The indicator portion 50 (53a, 54) is a protrusion protruding outward from the lure body 10, and is formed of a marine biodegradable resin composed of the same bioplastic as the lure body 10. The indicator portion 50 includes a portion of a lip 53 protruding obliquely downward toward the front side from the lower surface 14c of the fishing line connecting portion 14C, for example, a lip peripheral edge portion 53a, and a thin-walled second fin 54 protruding upward from the upper surface 14d of the fishing needle connecting portion 14D.

[0071] The lip 53 is a plate-shaped portion of the head 11 that imitates the lower jaw (lower mouth) of a fish, and functions as a wing that allows the bait to dive by means of fluid resistance. The thickness of the peripheral edge 53a of the lip 53 is set to be between 0.5 mm and 2.0 mm, preferably between 0.8 mm and 1.2 mm. The peripheral edge 53a of the lip 53 that functions as an indicator is preferably provided at a portion close to the connection portion, and is preferably provided at a position close to the first support portion 171 of the fishing line connection portion 14C.

[0072] The second fin 54 has a shape imitating a fish fin. The thickness of the second fin 54 is set to be 0.5 mm or more and 2.0 mm or less, and preferably 0.8 mm or more and 1.2 mm or less.

[0073] According to the fishing lure 1A of the second embodiment, the indicator portion 50 (the peripheral edge portion 53a of the lip 53 and the second fin 54) that can be integrally formed as the main body 10A, 10B is provided, so the user as an angler can confirm by visually checking the shape of the indicator portion 50. In addition, the indicator portion 50 is provided near the portion where strength becomes a problem during use (a portion that is easily damaged), that is, the connection portion 14, so the degree of biodegradation of the connection portion 14 of the main body 10A, 10B can be accurately recognized based on the state of the indicator portion 50, and the angler can use the fishing lure 1 to near the limit of use. For example, it can be confirmed that the peripheral edge portion 53a of the lip 53 and the edge of the second fin 54 are decomposed and the shape collapses, and they can no longer function as lips and fins.

[0074] By using the bait 1A with the expiration date in mind, the bait 1A that is nearing its expiration date or has exceeded its expiration date can be appropriately disposed of without placing a heavy burden on the environment.

[0075] The above is a description of 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 also be implemented in various other ways, and various omissions, substitutions, and changes can be made within the scope of 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.

[0076] For example, in the above embodiment, the indicator 50 is a protrusion protruding outward from the lure body 10 (the cylindrical protrusion 51, the first fin 52, the peripheral edge 53a of the lip 53, and the second fin 54), but the shape, size, and other structures of the protrusion are not limited to this embodiment. In general, the indicator 50 may be a structure provided at the connecting portion 14 of the main body to display the degree of biodegradation of the biodegradable resin.

[0077] In this embodiment, the fishing line connecting parts 14A and 14C and the fishing needle connecting parts 14B and 14D are exemplified as the connecting part 14 of the main body, but the connecting part 14 is not limited to these parts.

[0078] Furthermore, the shape of the bait, the number of divisions, and other structures, and the shape, number, and attachment position of the needles attached to the bait can be changed as appropriate.

[0079] 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.

[0080] Description of Reference Numerals

[0081] 1. 1A Bait

[0082] 10Bait body

[0083] 10A, 10B main body

[0084] 10a Front end

[0085] 10b rear end

[0086] 10c inner side

[0087] 11Head

[0088] 12 Main body

[0089] 13 tail

[0090] 14Connection

[0091] 14A, 14C Fishing line connection

[0092] 14B, 14D fishing needle connection

[0093] 17 snap-in slots

[0094] 30 Umbrella Needles

[0095] 40 fishing line installation shaft

[0096] 50 indicating portion (protrusion)

[0097] 51 cylindrical protrusion

[0098] 52 1st fin

[0099] 53 lips

[0100] 53a Lip periphery

[0101] 54 2nd fin

[0102] 60Linear parts

[0103] 61 line eye

[0104] 62, 62A, 62B hook eye

[0105] X1 front and rear direction

[0106] X2 left and right direction.

Claims

1. A fishing lure having a main body formed of a raw material of a biodegradable resin, The main body comprises a connecting portion and an indicating portion. The aforementioned connection part is subjected to the tensile force from the outside. The indicator portion is provided on the connecting portion to display the biodegradation progress of the biodegradable resin.

2. The fishing bait according to claim 1, characterized in that The indicator portion is a protrusion that protrudes outward from the lure body.

3. The fishing bait according to claim 2, characterized in that: The protrusions are thin-walled fins.

4. The fishing bait according to claim 3, characterized in that The thickness of the fin is not less than 0.5 mm and not more than 2.0 mm.

5. The fishing bait according to claim 2, characterized in that: The protrusion is cylindrical.

6. The fishing bait according to claim 5, characterized in that The diameter of the cylindrical protrusion is not less than 1.0 mm and not more than 2.0 mm.

7. The fishing bait according to claim 1, characterized in that The connecting portion is at least one of a fishing line connecting portion and a fishing needle connecting portion.

8. The fishing bait according to any one of claims 1 to 7, characterized in that The aforementioned biodegradable resin is a marine biodegradable resin composed of bioplastics.

Images