Luer
The lure design addresses adhesive failures in biodegradable lures by integrating fitting members for secure attachment, ensuring exterior parts remain attached and reducing environmental impact.
Patent Information
- Application Number
- JP2024134283
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-08-09
- Publication Date
- 2026-02-24
AI Technical Summary
Biodegradable lures face issues with exterior parts detaching due to adhesive failure or insufficient adhesive strength when made from biodegradable materials, leading to potential environmental impact.
The lure design incorporates a fitting member that integrates with or is separate from exterior parts, allowing attachment to a biodegradable lure body without adhesive, using water-soluble materials and engaging mechanisms to prevent detachment.
Exterior parts are securely attached to the lure body, preventing detachment during use and minimizing environmental impact by using biodegradable and environmentally friendly materials.
Smart Images

Figure 2026031026000001_ABST
Abstract
Description
[Technical Field]
[0001] The present invention relates to a lure. [Background technology]
[0002] Traditionally, in lures that imitate underwater creatures, the "eyes" have been an important element in making them look real, and because paint on the lure body tends to peel off easily, separate eye components have been attached. Furthermore, squid fishing lures (artificial baits) called egi (bait sticks) that imitate shrimp have weights attached from the thorax to the abdomen to keep the lure horizontal or tilted forward in the water. These eye components and exterior parts of the weight are attached to the lure body with adhesive (see, for example, Patent Document 1). [Prior art documents] [Patent documents]
[0003] [Patent Document 1] Patent No. 3747423 Summary of the Invention [Problem to be solved by the invention]
[0004] However, in the case of lures such as those shown in Patent Document 1, when the lure body is made of a biodegradable material, there is a possibility that the biodegradation of the portion to which the adhesive is applied will not proceed. If a biodegradable adhesive is used to avoid this, sufficient adhesive strength may not be obtained, or the bonded exterior parts may fall off during use due to differences in biodegradation rate, leaving room for improvement in this regard.
[0005] The present invention has been made in consideration of the above circumstances, and its object is to provide a lure in which exterior parts can be firmly attached to a biodegradable material without adhesive, and which can prevent the exterior parts from falling off during use. [Means for solving the problem]
[0006] (1) A first aspect of the lure according to the present invention comprises a lure body made of a biodegradable resin material, an exterior part attached to the outside of the lure body, a through hole penetrating the outer shell of the lure body, and a fitting member fitted into the through hole, and the exterior part is provided integrally with or separately from the fitting member.
[0007] According to the first aspect of the lure of the present invention, the exterior part can be easily attached to the lure body by fitting a fitting member, which is provided integrally with or separately from the exterior part, into the through hole that penetrates the outer shell of the lure body. Therefore, in the present invention, the exterior part can be attached to the lure body made of a biodegradable resin material without using an adhesive, which prevents the exterior part from falling off during use of the lure.
[0008] (2) In a second aspect of the present invention, in the lure of the first aspect, the exterior part and the fitting member are provided separately, and the exterior part preferably has a fixing portion that is fixed to the fitting member.
[0009] In this case, by fixing the fixing portion of the exterior part to the fitting member and fitting the fitting member into the through hole of the lure body, the exterior part can be attached to the lure body via the fitting member without adhesive.
[0010] (3) In a third aspect of the present invention, in the lure of the second aspect, it is preferable that the engaging member is a pin member inserted into the through hole, and the fixing portion is a pin hole arranged coaxially with the through hole and through which the pin member can be inserted.
[0011] In this case, the pin hole of the exterior part is fixed to the pin member, and the pin member is fitted into the through hole of the lure body, so that the exterior part can be attached to the lure body via the pin member without adhesive.
[0012] (4) A fourth aspect of the present invention may be characterized in that, in the lure of any one of the first to third aspects, the exterior part comprises a first exterior part that is integral with the fitting member and a second exterior part that has a fixing portion that is fixed to the fitting member, and the first exterior part and the fitting member are integrally formed, and the second exterior part has a fixing portion that is fixed to the fitting member.
[0013] In this case, the fixing portion of the second exterior part is fixed to the fitting member that is integral with the first exterior part, and the fitting member is fitted into the through-hole of the lure body, so that the pair of first and second exterior parts can be attached to the lure body via the fitting member without adhesive.
[0014] (5) In a fifth aspect of the present invention, in the lure of the fourth aspect, it is preferable that the engaging member is an engaging tube whose tube axis is arranged coaxially with the through hole, and the fixing portion has an engaging protrusion that can engage with the engaging tube.
[0015] In this case, by engaging the engaging protrusion of the second exterior part with the engaging tube of the first exterior part and fitting the engaging tube into the through hole of the lure body, the pair of exterior parts can be attached to the lure body via the engaging tube without adhesive.
[0016] (6) A sixth aspect of the present invention may be characterized in that, in the lure of any one of the first to fifth aspects, it comprises a lure body formed from a biodegradable resin material and having a hollow portion therein, an exterior part attached to the outside of the lure body, and an engaging part provided on an outer shell of the lure body and engaging with at least a part of the exterior part, wherein the exterior part has an engaged part that engages with the engaging part in a watertight manner.
[0017] In this case, by engaging the engaged portion of the exterior part with the engaging portion of the lure body, the exterior part can be easily attached to the lure body without adhesive. Furthermore, since the engaged portion of the exterior part is watertightly engaged with the engaging portion, it is possible to delay the decomposition of the engaging portion of the lure body made of biodegradable resin in water. Furthermore, in the present invention, since the engaging portion is separate from the hollow portion of the lure body, even when at least one of the engaging portion and the engaged portion disassembles underwater, no hole is formed that connects the hollow portion of the lure body to the outside. Therefore, even if at least one of the engaging portion and the engaged portion disassembles, the hollow portion forms a hollow portion in the lure body, so that the lure body can easily float up, allowing the lure body to be efficiently released from a snagged state.
[0018] (7) A seventh aspect of the present invention may be characterized in that, in the lure of the seventh aspect, at least one of the engaging portion and the engaged portion has a waterproof layer formed of a biodegradable material on the engaging surface.
[0019] In this case, a waterproof layer is provided on the engagement surface between the engaged portion of the exterior part and the engaging portion, allowing for a more watertight engagement and delaying the decomposition of the engaging portion of the lure body, which is made of biodegradable resin, in water.
[0020] (8) Aspect 8 of the present invention may be characterized in that in the lure of any one of Aspects 1 to 5, the fitting member is made of a water-soluble material.
[0021] In this case, if the lure gets snagged on a bottom, the fitting member will decompose, allowing the exterior part and the lure body to be separated, and the exterior part will not interfere with the biodegradation of the lure body.
[0022] (9) A ninth aspect of the present invention may be characterized in that, in the lure of any one of the first to eighth aspects, the exterior part is formed from a material with a low environmental impact.
[0023] In this case, if the lure gets snagged on a bottom, the load on the environment can be reduced because the non-biodegradable exterior parts are made of materials with low environmental impact, such as magnesium or tungsten. [Effects of the Invention]
[0024] According to the lure of the present invention, the exterior part can be firmly attached to the biodegradable material without adhesive, and the exterior part can be prevented from falling off during use. [Brief explanation of the drawings]
[0025] [Figure 1] 1 is a perspective view showing a lure according to an embodiment of the present invention. FIG. [Figure 2] FIG. 2 is a longitudinal sectional view of the lure shown in FIG. 1. [Figure 3] FIG. [Figure 4] FIG. 2 is a cross-sectional view taken along line II in FIG. [Figure 5] FIG. 2 is a cross-sectional perspective view taken along line II-II shown in FIG. [Figure 6] FIG. [Figure 7] FIG. 10 is a side view of the head side of the lure according to the second embodiment, with the lure body on the left side omitted. [Figure 8] FIG. 8 is a cross-sectional view taken along the line III-III shown in FIG. 7. DETAILED DESCRIPTION OF THE INVENTION
[0026] Hereinafter, embodiments of the lure according to the present invention will be described with reference to the drawings. In each drawing, the scale of each component may be appropriately changed as necessary to make each component large enough to be visible.
[0027] (First embodiment) Fig. 1 is a perspective view of a lure 1 according to a first embodiment. Fig. 2 is a side cross-sectional view of the lure 1 shown in Fig. 1. As shown in Figs. 1 and 2, the lure 1 of the embodiment is a lure made of a biodegradable resin material and modeled after a shrimp, a so-called egi (squid fishing lure), as an example.
[0028] Here, in the lure 1, the direction in which the head 11 and tail 13 are aligned is defined as the front-to-back direction X1, the head 11 side is defined as the front or front side, and the tail 13 side is defined as the rear or back side. In the following description, the lateral direction perpendicular to the front-to-back direction X1 when viewed from above is defined as the left-to-right direction X2.
[0029] The lure 1 comprises a pair of lure bodies 10 divided into two halves, an umbrella hook 20 having a shaft 21 that engages with the rear end 10b of the lure body 10, a line eye 30 having an engagement ring 31 that engages with the front end 10a of the lure body 10, an eye member 40 (exterior part) attached to the outside of the lure body 10, and a sinker 50 (exterior part, weight) attached to the bottom of the lure body.
[0030] The lure body 10 is formed in a streamlined shape and is integrally formed by joining the peripheral edges of a pair of half lure bodies together by ultrasonic welding or the like. The lure body 10 is integrally formed with a head 11, a body 12, and a tail 13. In Figures 1 and 2, the left side of the paper is the front end 10a of the lure body 10 on the head 11 side, and the right side of the paper is the rear end 10b of the lure body 10 on the tail 13 side.
[0031] The cross section of the lure body 10 is largest at the central portion 10e in the front-to-rear direction X1. That is, the lure body 10 becomes thicker from the front end portion 10a toward the central portion 10e and tapers from the central portion 10e toward the rear end portion 10b, forming a smooth curve overall.
[0032] As shown in Figure 2, the trunk 12 of the lure body 10 forms a hollow portion 100. The head 11 and tail 13 are solid. In the lure body 10, the shaft 21 of the umbrella hook 20, the engagement ring 31 of the line eye 30, and the pin member 52 of the sinker 50 are each covered by an outer shell.
[0033] The lure body 10 is made of a material that can be decomposed in water. Examples of materials that can be decomposed in water include biodegradable resins, such as marine biodegradable resins made from biomass plastics, such as cellulose acetate and PHA (polyhydroxyalkanoate). Among PHAs, P3HB (poly[(R)-3-hydroxybutyrate]) and its copolymers P3HB4HB (poly[(R)-3-hydroxybutyrate-co-4-hydroxybutyrate]), P3HBV (poly[(R)-3-hydroxybutyrate-co-(R)-3-hydroxyvalerate]), and P3HBH (poly[(R)-3-hydroxybutyrate-co-(R)-3-hydroxyhexanoate]) are particularly biodegradable in seawater (marine biodegradability).
[0034] Furthermore, the lure body 10 has a buoyancy greater than its weight, and can float due to the buoyancy.
[0035] The lure body 10 has an inner surface 10c facing the hollow portion 100, on which a reinforcing rib 101 protruding toward the hollow portion 100 is provided. The reinforcing rib 101 extends in the vertical direction, and is disposed so that the rib surface intersects with the front-rear direction X1. By providing the reinforcing rib 101, the lure body 10, which is made of a biodegradable resin material, is reinforced. Therefore, the strength of the lure body 10 is increased so that it can withstand external pressure.
[0036] As shown in Figure 2, the shaft 21 of the umbrella hook 20 protrudes from the rear end 10b of the lure body 10. The shaft 21 is a pin member that is engaged with the lure body 10 with a portion (fixed end 21a) inserted into it, with its axial direction oriented in the front-to-rear direction X1 of the lure body 10. The umbrella hook 20 is attached to the shaft 21 that protrudes from the rear end 10b of the lure body 10. The umbrella hook 20 has the shaft 21 and is provided on the outer side of the lure body 10. The rear end 10b of the lure body 10 has a first engagement hole 14a that engages with the fixed end 21a of the shaft 21.
[0037] First engaging hole 14a is included in a part of first engaged portion 14. First engaged portion 14 is provided in solid tail portion 13 of lure body 10, and is provided in a position separated from hollow portion 100. Therefore, even if either shaft portion 21 or first engaged portion 14 dissolves or decomposes in water, hollow portion 100 can maintain a sealed state throughout. In this embodiment, a gap communicating with the surface of the lure body 10 may be partially provided between the shaft portion 21 and the first engaged portion 14.
[0038] As shown in Figure 2, line eye 30 has engagement ring 31, line connecting ring 32, and shaft body 33. Shaft body 33 is provided with engagement ring 31 at one end and line connecting ring 32 at the other end. Engagement ring 31 and shaft body 33 are inserted into and engaged with second engagement hole 15a that opens into front end 10a of lure body 10. Second engagement hole 15a is a recess formed in approximately the same shape as engagement ring 31 and shaft body 33 that engage with lure body 10. Line connecting ring 32 protrudes forward from front end 10a of lure body 10, and a fishing line is connected to it.
[0039] Second engaging hole 15a is included in a part of second engaged portion 15. Second engaged portion 15 is provided in solid head 11 of lure body 10, and is provided in a position separated from hollow portion 100. Therefore, even if either engaging ring 31 or second engaged portion 15 dissolves or decomposes in water, hollow portion 100 can maintain a sealed state throughout. In this embodiment, a gap communicating with the surface of the lure body 10 may be partially provided between the line connecting ring 32 and the second engaged portion 15.
[0040] 3 and 4, a pair of eye members 40 are provided on the left and right sides and are attached using through holes 16 that penetrate the outer shell portion 10A of the head 11 of the lure body 10. Here, of the pair of eye members 40, the left eye is designated by the symbol 40A, and the right eye is designated by the symbol 40B.
[0041] The through-hole 16 of the lure body 10 has the same cross-sectional diameter and penetrates the lure body 10 in the left-right direction X2. The inner diameter of the through-hole 16 is approximately the same as the outer diameter of the engagement tube 41, which will be described later.
[0042] The left eye 40A and the right eye 40B are circular members in side view that imitate fish eyes. These eyes 40A, 40B are respectively disposed on the side surfaces of the head 11 of the lure body 10. The eye member 40 is made of an environmentally friendly material such as magnesium, or a material that is biodegradable in water.
[0043] As shown in Figures 3 and 4, the eye member 40 has a left eye 40A (first exterior part) that is integral with the engaging tube 41 (fitting member), and a right eye (second exterior part) that has an engaging protrusion 42 (fixing part) that is fixed to the engaging tube 41. The eye member 40 is provided such that the left eye 40A and the engaging cylinder 41 are integrally formed. The right eye 40B has the engaging protrusion 42 that can be engaged with the engaging cylinder 41.
[0044] The engaging tube 41 protrudes from the back surface 40a of the left eye 40A toward the right side, and the tube axis is arranged coaxially with the through-hole 16. The inner diameter of the engaging tube 41 is approximately the same as the outer diameter of the engaging protrusion 42. The engaging tube 41 is desirably made of a material that is water-soluble (including not only biodegradable in water, but also hydrolyzable and soluble).
[0045] The engaging protrusion 42 protrudes leftward from the rear surface 40b of the right eye 40B and has a pin shape that is inserted into the inside of the engaging tube 41. The engagement between the engaging tube 41 and the engaging protrusion 42 is such that the engagement is difficult to separate in the tube axis direction (left-right direction X2) due to frictional force.
[0046] 5 and 6, the sinker 50 is a substantially plate-shaped weight, and is fixed to the lure body 10 by having its upper portion 50a sandwiched between the two halves of the lure body 10 at the lower head-side portion of the trunk 12 of the lure body 10 with the surface of the plate facing up and down. A recess 18 is formed in the lower portion of the lure body 10 to hold the upper portion 50a of the sinker 50.
[0047] The recess 18 is a portion that accommodates the upper portion 50a of the sinker 50. The recess 18 is disposed at a separate position relative to the hollow portion 100, that is, separated from the hollow portion 100 by the outer shell portion 10A. Therefore, even if the pin member 52 decomposes in water and the sinker 50 is separated from the recess 18, the hollow portion 100 can maintain a sealed state.
[0048] The sinker 50 has an engagement hole 51 (fixing portion). The engagement hole 51 is a pin hole that is arranged coaxially with the second through hole 17 and through which a pin member 52 (fitting member) can be inserted. The sinker 50 is fixed to the lure body 10 by inserting the pin member 52, which is inserted into the second through hole 17 that penetrates each of the two halves of the lure body 10, into the engagement hole 51 of the sinker 50. The pin member 52 is provided separately from the sinker 50.
[0049] The pin member 52 is formed from a material that is water-soluble (including not only biodegradability in water but also hydrolysis and dissolution).
[0050] The sinker 50 is made of a material with low environmental impact, such as tungsten.
[0051] Second through-hole 17 is disposed in lure body 10 at a position in the lower part of trunk 12 where it communicates with recess 18. The inner diameters of the second through-hole 17 and the engagement hole 51 and the outer diameter of the pin member are approximately the same.
[0052] Next, the operation of the lure 1 configured as above will be described in detail with reference to FIGS. The lure 1 according to this embodiment comprises a lure body 10 formed from a biodegradable resin material, exterior components (eye member 40, sinker 50) attached to the outside of the lure body 10, through-holes 16 and 17 penetrating the outer shell portion 10A of the lure body 10, and fitting members (engagement tube 41, pin member 52) fitting into the through-holes 16 and 17. The exterior components (eye member 40, sinker 50) are provided integrally with or separately from the fitting members (engagement tube 41, pin member 52).
[0053] According to the lure 1 of this embodiment, the exterior parts (eye member 40, sinker 50) can be easily attached to the lure body 10 by fitting fitting members (engagement tube 41, pin member 52) that are provided integrally with or separately from the exterior parts (eye member 40, sinker 50) into through holes 16, 17 that penetrate the outer shell 10A of the lure body 10. Therefore, in this embodiment, the exterior parts can be attached to the lure body 10 made of a biodegradable resin material without using adhesive, which prevents the lure 1 from falling off from the biodegradable resin material during use.
[0054] In this embodiment, the sinker 50 and the pin member 52 are provided as separate bodies. The sinker 50 has a fixing portion (engagement hole 51) to be fixed to the pin member 52. With this configuration, the engagement hole 51 of the sinker 50 is fixed to the pin member 52, and the pin member 52 is fitted into the second through-hole 17 of the lure body 10, so that the sinker 50 can be attached to the lure body 10 via the pin member 52 without adhesive.
[0055] Furthermore, in this embodiment, the fitting member is a pin member 52 that is inserted into the second through hole 17. The fixing portion is a pin hole (engagement hole 51) that is arranged coaxially with the second through hole 17 and through which the pin member 52 can be inserted. With this configuration, the engagement hole 51 of the sinker 50 is fixed to the pin member 52, and the pin member 52 is fitted into the second through-hole 17 of the lure body 10, so that the sinker 50 can be attached to the lure body 10 via the pin member 52 without adhesive.
[0056] In this embodiment, the eye member 40 has a left eye 40A that is formed integrally with the engaging tube 41, and a right eye 40B that has an engaging protrusion 42 that is fixed to the engaging tube 41. The left eye 40A and the engaging tube 41 are formed integrally. The right eye 40B has an engaging protrusion 42 that is fixed to the engaging tube 41. This allows the engaging protrusion 42 of the right eyeball 40B to be fixed to the engaging tube 41 that is integrally formed with the left eyeball 40A, and by fitting the engaging tube 41 into the first through hole 16 of the lure body 10, the pair of left eyeballs 40A and right eyeballs 40B can be attached to the lure body 10 via the engaging tube 41 without adhesive.
[0057] In this embodiment, the engagement cylinder 41 is an engagement cylinder whose cylinder axis is arranged coaxially with the first through-hole 16. The engagement protrusion 42 has an engagement protrusion 42 that can be engaged with the engagement cylinder 41. This allows the engagement tube 41 of the left eye 40A to be engaged with the engagement protrusion 42 of the right eye 40B, and the engagement tube 41 to be fitted into the first through-hole 61 of the lure body 10, thereby attaching the pair of eye members 40 to the lure body 10 via the engagement tubes 41 without adhesive.
[0058] In this embodiment, the fitting members (engagement tube 41, pin member 52) are made of a water-soluble material. By configuring the lure 1 in this manner, if the lure 1 gets snagged on a bottom, the engaging members (engaging tube 41, pin member 52) will disassemble, allowing the eye member 40 and sinker 50 to be separated from the lure body 10, preventing the eye member 40 and sinker 50 from interfering with the biodegradation of the lure body 10.
[0059] In addition, in this embodiment, the eye member 40 and the sinker 50 are made of materials that have a low environmental impact. This reduces the environmental impact when the lure 1 gets snagged because the non-biodegradable eye member 40 and sinker 50 are made of environmentally friendly materials such as magnesium and tungsten. Metal materials with low environmental impact may also be zinc or tin.
[0060] In the lure 1 according to this embodiment configured as described above, the exterior parts (eye member 40, sinker 50) can be firmly attached to the biodegradable material without adhesive, and the exterior parts can be prevented from falling off during use.
[0061] (Second embodiment) Fig. 7 is a side view of the head 11 side of the lure 1A according to the second embodiment, omitting the lure body 10 on the left side. Fig. 8 is a cross-sectional view taken along line II shown in Fig. 7. As shown in FIGS. 7 and 8, the lure 1A of the second embodiment is made of a degradable resin material and includes a lure body 10 having a hollow portion 100 therein, a second sinker 50A (exterior part, weight) attached to the outside of the lure body 10, and an engaging recess 19 (engaging portion) provided on the outer shell of the lure body 10 and engaging with at least a portion (engaging protrusion 53) of the second sinker 50A.
[0062] The second sinker 50A has an engaging protrusion 53 (engaged portion) that watertightly engages with the engaging recess 19. At least one of the engaging recess 19 and the engaging protrusion 53 has a waterproof layer 60 formed of a biodegradable material on the respective engaging surfaces.
[0063] In the lure 1A according to the second embodiment, the second sinker 50A can be easily attached to the lure body 10 without adhesive by engaging the engaging protrusion 53 of the second sinker 50A with the engaging recess 19 of the lure body 10. Furthermore, because the engaging protrusion 53 of the second sinker 50A is watertightly engaged with the engaging recess 19, it is possible to delay the decomposition of the engaging recess 19 of the lure body 10, which is made of a biodegradable resin, in water.
[0064] Moreover, in this embodiment, since the engagement recess 19 is separated from the hollow portion 100 of the lure body 10, even when at least one of the engagement recess 19 and the engagement protrusion 53 disintegrates underwater, no hole is formed that connects the hollow portion 100 of the lure body 10 to the outside. Therefore, even if at least one of the engagement recess 19 and the engagement protrusion 53 disintegrates, the hollow portion 100 forms the lure body 10, so that even when the second sinker 50A is detached from the lure body 10 due to the disintegration of at least one of the engagement recess 19 and the engagement protrusion 53, the lure body 10 forms the hollow portion 100, making it easier to float up, and the lure body 10 can be efficiently released from a snagged state.
[0065] In addition, in the second embodiment, a waterproof layer 60 is provided on the engagement surface between the engagement protrusion 53 of the second sinker 50A and the engagement recess 19, allowing for a more watertight engagement and delaying the decomposition of the engagement recess 19 of the lure body 10, which is made of a biodegradable resin material, in water.
[0066] Although the embodiments of the lure according to the present invention have been described above, these embodiments are presented as examples and are not intended to limit the scope of the invention. The embodiments can be implemented in various other forms, and various omissions, substitutions, and modifications can be made without departing from the spirit of the invention. The embodiments and their modifications include, for example, those that can be easily imagined by a person skilled in the art, those that are substantially the same, and those that are equivalent.
[0067] For example, in the above embodiment, the eye member 40 and the sinker 50 are exemplified as exterior parts, but the present invention is not limited to these. In short, any exterior part may be provided separately from the lure body 10 of the lure 1 and attached to the outside of the lure body 10 via a fitting member, and the function, type, size, etc. of the exterior part are not particularly limited.
[0068] Furthermore, the configuration of the lure 1, such as the shape and number of divisions, and the shape, number, and attachment position of the hooks attached to the lure 1 can be changed as appropriate.
[0069] In the above embodiment, the engagement portions of the eye member 40 and the sinker 50 with the lure body 10 are separated from the hollow portion 100, but they may be connected. In this case, water seeps into the hollow portion 100 when it enters through the engagement portions, and even if the outer periphery of the lure body 10 has been treated to delay biodegradation, biodegradation is promoted from the inside of the lure body 10 by microorganisms in the water or in the sediments on the bottom of the water.
[0070] While various biomass plastics have been mentioned as examples of marine biodegradable resins, the materials themselves do not have to be derived from living organisms. For example, PBSA, PCL, PA4, or biodegradable materials with additives that impart marine biodegradability are possible.
[0071] Furthermore, materials that can be decomposed in water are not limited to marine biodegradable resins, but may also be metallic materials with low environmental impact, such as magnesium. [Explanation of symbols]
[0072] 1. 1A Lure 10 Lure body 10A Outer shell 10a Front end 10b Rear end 11 Head 12 Torso 13 Tail 16 First through hole 17 Second through hole 18 Recess 19 Engagement recess (engagement portion) 40 Eyeball parts (exterior parts) 40A Left eyeball (first exterior part) 40B Right eyeball (second exterior part) 41 Engagement tube (fitting member) 42 Engagement protrusion (fixed part) 50 Sinker (exterior parts, weights) 50a upper 51 Engagement hole (fixed part) 52 Pin member (fitting member) 53 Engagement convex part (engaged part) 60 waterproof layer 100 Hollow part X1 Anteroposterior direction X2 Left / right direction
Claims
1. A lure body formed from a biodegradable resin material; An exterior part attached to the outside of the lure body; a through hole penetrating an outer shell portion of the lure body; a fitting member that fits into the through hole; Equipped with The exterior part is provided integrally with or separately from the fitting member.
2. The exterior component and the fitting member are provided separately, The lure according to claim 1, wherein the exterior part has a fixing portion that is fixed to the fitting member.
3. the fitting member is a pin member inserted into the through hole, The lure according to claim 2, wherein the fixing portion is a pin hole that is disposed coaxially with the through hole and through which the pin member can be inserted.
4. The exterior part is a first exterior component provided integrally with the fitting member; a second exterior part having a fixing portion fixed to the fitting member, the first exterior part and the fitting member are integrally provided, The lure according to claim 1 , wherein the second exterior part has a fixing portion that is fixed to the fitting member.
5. the fitting member is an engaging tube whose cylindrical axis is arranged coaxially with the through hole, The lure according to claim 4, wherein the fixing portion has an engaging protrusion that can engage with the engaging tube.
6. A lure body formed from a biodegradable resin material and having a hollow portion therein; An exterior part attached to the outside of the lure body; an engaging portion provided on an outer shell portion of the lure body and engaging with at least a part of the exterior part; The exterior part has an engaged portion that engages with the engaging portion in a watertight manner.
7. 7. The lure according to claim 6, wherein at least one of the engaging portion and the engaged portion has a waterproof layer formed of a biodegradable material on an engaging surface.
8. The lure according to any one of claims 1 to 5, wherein the fitting member is made of a water-soluble material.
9. The lure according to any one of claims 1 to 7, wherein the exterior part is formed from a material with a low environmental impact.
Citation Information
Patent Citations
Lure and its manufacturing method
JP3747423B2