Fish pinching tool
The fish clamp design with a thinner first blade and pivot fulcrum configuration addresses the challenge of clamping fish on surfaces by enabling easy insertion and secure grip, enhancing usability for various fish sizes.
Patent Information
- Application Number
- JP2024039689
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-03-14
- Publication Date
- 2025-09-29
- Estimated Expiration
- 2044-03-14
AI Technical Summary
Existing fish clamps with uniformly thick front half sections struggle to clamp fish lying on the ground or boat surface due to difficulty in inserting one lever between the fish and the ground, making clamping impossible.
A fish clamp design featuring a thinner first blade that can be inserted between the fish and the ground, paired with a second thicker blade for clamping, allowing easy alignment and secure grip, and a pivot fulcrum positioned 45% to 65% from the tip for wide spread and easy operation.
Enables easy and secure clamping of fish lying on surfaces by allowing the thinner blade to insert between the fish and the ground, facilitating quick and stable grip even for small fish.
Smart Images
Figure 2025140344000001_ABST
Abstract
Description
[Technical Field]
[0001] The present invention relates to a fish clamp for clamping fish. [Background technology]
[0002] The fish clamping device comprises a first lever and a second lever that can be rotated around a pivot point, and a biasing spring that biases the pair of levers to an open state. Each of the front half portions of the pair of levers on the tip side of the pivot point is formed with teeth for clamping fish, and the rear half portions of the pair of levers on the base side of the pivot point are formed with a pair of operating parts for rotating and closing the pair of front half portions that are biased to an open state by the biasing spring (see, for example, Patent Document 1). [Prior art documents] [Patent documents]
[0003] [Patent Document 1] Publication No. 3-23091 [Patent Document 2] Publication No. 5-78 Summary of the Invention [Problem to be solved by the invention]
[0004] In the above-mentioned Patent Document 1, the pair of front half sections that hold the fish have approximately the same predetermined thickness, which causes the disadvantage that the fish cannot be clamped under the following circumstances: For example, if a caught fish comes off the hook and lies on the ground at the fishing spot (or the floor in the case of a fishing boat), one of the pair of front half sections must be placed between the fish and the ground at the fishing spot and then both front half sections must be closed to clamp the fish; however, if the front half sections have a predetermined thickness, it is difficult to place the front half section between the fish and the ground at the fishing spot, which can make it impossible to clamp the fish with the fish clamp, and an early improvement is desired (the same applies to Patent Document 2).
[0005] The present invention has been made in consideration of the above-mentioned circumstances, and has as its object to provide a fish clamp that can easily clamp fish lying on the surface at a fishing spot or on a boat. [Means for solving the problem]
[0006] The fish clamp of the present invention comprises a pair of blades located at the tip end that can move toward and away from each other, a pair of operating units located at the base end that are operated to operate the pair of blades, and a pivot fulcrum unit located at the base end of the pair of blades and at the tip end of the pair of operating units that rotatably connects the pair of blades and the pair of operating units, the pair of blades having a first blade and a second blade, and the first blade is thinner than the second blade in terms of blade thickness at the tip end of the pair of blades in a direction perpendicular to the direction of movement toward and away from each other.
[0007] With the above configuration, for example, the thin first blade can be inserted between a fish lying on the ground at a fishing spot (or the floor in the case of a fishing boat) and the ground (or the floor in the case of a fishing boat), making it easy to align the pair of blades along the fish's body, so that the fish can be clamped between the inserted first blade and second blade and quickly moved to the desired position.
[0008] In addition, in the fish clamping tool of the present invention, when the pair of blades approach each other, the tip of the first blade and the tip of the second blade may cross each other in the direction of approaching and separating.
[0009] As described above, the tip of the first blade and the tip of the second blade cross in the direction of approach and separation, so that the distance between the pair of blades can be made small when they approach each other, making it easy to clamp even small fish.
[0010] In addition, in the fish clamp of the present invention, the pair of operating parts have bending portions that bend in the extension direction so that the base ends of the parts approach each other, and the pivot fulcrum portion may be located at a position 45% to 65% from the tip of the fish clamp relative to the total length of the fish clamp.
[0011] With the above configuration, the pair of blades can be widely spread apart, and the operating portion can be easily operated by the bent portion where the base ends are brought close to each other, resulting in a good operational feel.
[0012] In addition, the fish clamp of the present invention may be configured so that the second blade has a through-hole that penetrates in the direction of approaching and separating, and the tip of the first blade passes through the through-hole when the pair of blades approach each other.
[0013] As described above, by configuring the tip of the first blade to pass through the penetration portion of the second blade, the blades can be prevented from becoming larger in the direction perpendicular to the rotation direction, compared to a configuration in which the position of the tip of one blade is shifted relative to the tip of the other blade in a direction perpendicular to the rotation direction so that they do not interfere when approaching each other. [Effects of the Invention]
[0014] By making the first blade thinner than the second blade as in the present invention, it is possible to provide a fish clamp that can easily clamp fish lying on the surface at a fishing spot or on a boat. [Brief explanation of the drawings]
[0015] [Figure 1] FIG. 2 is a plan view of the fish clamp of the present invention in a closed state. [Figure 2] FIG. 2 is a plan view of the fish clamp in an open state. [Figure 3] FIG. 2 is a front view of the fish clamp in an open state. [Figure 4] FIG. 2 is an exploded perspective view of the fish clamp seen from above. [Figure 5] FIG. 2 is an exploded perspective view of the fish clamp seen from below. [Figure 6] This is a view from directly above the fish, showing the state just before the thinner blade is inserted between the fish lying on the fishing spot and the ground. [Figure 7]This shows the state just before the thinner blade is inserted between the fish lying on the fishing spot and the ground, as seen from VII in Figure 6. [Figure 8] FIG. 10 is an explanatory diagram showing a state in which a fish is clamped from the left and right by fish clamps. DETAILED DESCRIPTION OF THE INVENTION
[0016] Hereinafter, an embodiment of a fish clamping device of the present invention will be described with reference to the drawings. In the following description, one end (tip end) of the fish clamping device 1 in the longitudinal direction will be referred to as the front end, the other end (base end) will be referred to as the rear end, the short side perpendicular to the longitudinal direction (front-rear direction) of the fish clamping device 1 will be referred to as the left-right direction, and the direction penetrating the paper in Figures 1 and 2 will be referred to as the up-down direction of the fish clamping device 1.
[0017] The fish clamp 1 comprises a first arm 2 and a second arm 3 rotatably connected to each other at the middle part in the longitudinal direction (front-to-back direction), and a biasing means 4 that biases the first arm 2 and the second arm 3 in the opening direction.
[0018] The first arm 2 and the second arm 3 are provided with a pair of blades 5, 6 located at their front ends that can move toward or away from each other by the rotation, a pair of operating units 7, 8 located at their rear ends that are operated to rotate (operate) the pair of blades 5, 6, and a rotation fulcrum unit 9 located at the rear ends of the pair of blades 5, 6 (the base end of the entire fish clamp 1) and at the front ends of the pair of operating units 7, 8 (the tip end of the entire fish clamp 1) that connects the pair of blades 5, 6 and the pair of operating units 7, 8 so that they can rotate about a vertical axis. In other words, the blade 5 and operating unit 7 together form the first arm 2, and the blade 6 and operating unit 8 together form the second arm 3 (see Figures 4 and 5).
[0019] The pair of blades 5, 6 includes a first blade 5 located on the left side of Fig. 1 and a second blade 6 located on the right side of Fig. 1. Alternatively, the first blade 5 may be located on the right side and the second blade 6 may be located on the left side.
[0020] The first blade 5 includes a metal tooth portion 51 having teeth on its inner surface, and a synthetic resin support portion 52 that supports the tooth portion 51. The tooth portion 51 is configured as a plate having the same thickness (blade thickness) in the front-rear direction. As shown in FIG. 3, the blade thickness D is the size in the direction perpendicular to the direction of approach and separation at the tip ends of the pair of blades 5, 6 and the front-rear direction. In other words, the blade thickness is the size in the direction perpendicular to the plane including the rotation direction of the first arm 2 and the second arm 3 (the up-down direction in this embodiment). Note that the tooth portion 51 and the support portion 52 are integrated by insert molding, but they may also be integrated by adhesive, engagement, or the like.
[0021] As shown in FIG. 2, the front end (tip) 51A of the tooth portion 51 protrudes forward from the front end 52A of the support portion 52. Therefore, as shown in FIG. 3, the blade thickness D at the front end 51A of the first blade 5 is thinner than the blade thickness d at the front end (tip) 61A of the second blade 6. As a result, as shown in FIGS. 6 and 7, when a fish F is lying on the ground G of a fishing spot (or the floor in the case of a fishing boat), the thin front end 51A of the first blade 5 can be inserted between the lying fish F and the ground G (or the floor in the case of a fishing boat). By closing the inserted first blade 5 and second blade 6, the fish F can be sandwiched and moved to a desired position. The blade thickness D of the front end 51A of the first blade 5 is preferably set in the range of 1.5 mm to 3.0 mm, and more preferably in the range of 1.8 mm to 2.5 mm. 6 makes it difficult to see the relationship between the fish F and the first blade 5 of the fish clamp 1, so Fig. 7 shows a diagram that shows the angle of the first blade 5 of the fish clamp 1 with respect to the ground when the fish F is viewed from the front. In Fig. 7, the angle H of the first blade 5 with respect to the ground G is set to about 30 degrees, but the closer the angle is to being approximately parallel with the ground G, the easier it is to get the thin front end 51A of the first blade 5 between the fish F and the ground G (the floor in the case of a fishing boat).
[0022] As shown in FIG. 2, the toothed portion 51 includes first teeth 53 formed on the inner surface of the front end portion 51A, and second teeth 54 formed between the front end portion 51A and the rear end portion.
[0023] The first tooth 53 of the first blade 5 is composed of a plurality of approximately triangular first protrusions 53a (two in this embodiment, but any number is acceptable) formed continuously in the front-to-rear direction, and the top of the first protrusions 53a is curved in a rounded arc when viewed from the left to right (see Figure 2).
[0024] 2, the second teeth 54 of the first blade 5 include six (or any number of) substantially triangular second protrusions 54a from the rear end of the first protrusion 53a located at the rear end in the front-rear direction, spaced apart in the front-rear direction, from the first to sixth second protrusions 54a. The second protrusions 54a, 54a adjacent to each other in the front-rear direction are formed on curved surfaces 54b that are concave outward. The top of the first second protrusion 54a is located more inward than the top of the first protrusion 53a, the top of the second second protrusion 54a is located further inward than the top of the first second protrusion 54a, the top of the third second protrusion 54a is located more outward than the top of the second second protrusion 54a, the top of the fourth second protrusion 54a is located further outward than the top of the third second protrusion 54a, the top of the fifth second protrusion 54a is located more inward than the top of the fourth second protrusion 54a, and the top of the sixth second protrusion 54a is located more inward than the top of the fifth second protrusion 54a. That is, the apex of the fourth second protrusion 54a is located outermost, the apex of the second second protrusion 54a and the apex of the sixth second protrusion 54a are both located innermost, and the apex of the third second protrusion 54a and the apex of the fifth second protrusion 54a are located between the apex of the fourth second protrusion 54a and the apex of the sixth second protrusion 54a in the medial-lateral direction. A line connecting the apex of the second second protrusion 54a to the apex of the third second protrusion 54a, the apex of the fourth second protrusion 54a, the apex of the fifth second protrusion 54a, and the apex of the sixth second protrusion 54a forms a curved portion whose front-to-rear direction center is located innermost and whose front-to-rear direction ends are located outermost. Therefore, as shown in Figure 8, the top of the second protrusion 54a tends to fit along one side Fa of the fish F to be clamped, and the curved surface 54b between adjacent second protrusions 54a, 54a in the front-to-back direction makes line contact with one side Fa of the fish F, making it easier to hold the fish F stably.
[0025] The second blade 6 has first teeth 62 on an inner surface 61a of the front end 61A and second teeth 63 on an inner surface 61b between the rear side of the front end 61A and the rear end. The inner surface 61a of the front end 61A is formed as a flat surface that is approximately parallel to the front-to-rear direction when the blades 5 and 6 are closed in FIG. 1, and the inner surface 61b between the rear side of the front end 61A and the rear end is formed as a curved surface that is positioned more outward as it approaches the center in the front-to-rear direction. When removing the fishhook from a fish, the first teeth 53 of the first blade 5 and the first teeth 62 of the second blade 6 can grip the mouth or gills of the fish.
[0026] The second blade 6 has two rows of first teeth 62 on each of the top and bottom ends, aligned along the front-to-back direction (see Figure 5), and each first tooth 62 is composed of a plurality of approximately triangular prism-shaped first protrusions 62a (three in this embodiment, but any number is acceptable) formed continuously in the front-to-back direction, and the tops of the first protrusions 62a are curved in a rounded arc when viewed from the left to right.
[0027] Like the first teeth 62, the second teeth 63 of the second blade 6 are provided in two rows along the front-rear direction at both ends in the vertical direction, and each second tooth 63 has a plurality of substantially quadrangular pyramidal second protrusions 63a (23 in this embodiment, but any number is acceptable) spaced apart with slight gaps in the front-rear direction. All second protrusions 63a are the same size. Therefore, as the inner surface 61b approaches the center in the front-rear direction, the line connecting the tops of all second protrusions 63a protruding inward from the curved surface located outward also becomes curved, and as shown in Figure 8, the tops of the numerous second protrusions 63a are likely to come into contact with the other side Fb of the fish F to be caught. As a result, as shown in Figure 8, on the first blade 5, the curved surface 54b between the second protrusions 54a, 54a comes into continuous contact with one side Fa of the fish F over a wide area, thereby gripping the fish F, and on the second blade 6, the tops of the numerous second protrusions 63a dig into the other side Fb of the fish F, making it easier to securely grip the fish F.
[0028] The first arm 2 and the second arm 3 intersect in an X-shape in plan view, and are provided with a pivot point 9 that pivots freely relative to each other at the intersection. One of the pair of operation units 7, 8, the first operation unit 7 (on the left side in FIG. 1), is connected to the first blade 5 on the right side via the pivot point 9. The other, the second operation unit 8 (on the right side in FIG. 1), is connected to the second blade 6 on the left side via the pivot point 9.
[0029] As shown in FIG. 1, the pair of operating units 7, 8 have bent portions 7W, 8W that bend inward in the extension direction so that their rear ends (base ends) approach each other. Of the pair of operating units 7, 8, the first operating unit 7 includes a first extending portion 7A extending diagonally left rearward from a pivot fulcrum 9, and a first gripping portion 7B that bends inward at a bent portion 7W at the end of the first extending portion 7A and extends rearward. Of the pair of operating units 7, 8, the second operating unit 8 includes a second extending portion 8A extending diagonally right rearward from the pivot fulcrum 9, and a second gripping portion 8B that bends inward at a bent portion 8W at the end of the second extending portion 8A and extends rearward. Through holes are formed in the inner portions of the first gripping portion 7B and the second gripping portion 8B to reduce weight. Three through holes are formed along the front-to-rear direction, with the two front long holes 7a, 8a having approximately the same size and shape, and the two rear long holes 7b, 8b located at the rear end and having a larger left-to-right width than the front long holes 7a, 8a. The provision of the bent portions 7W, 8W can prevent the space between the operating units 7, 8 from widening, making it easier to close the operating units 7, 8 and providing a good operating feel.
[0030] As shown in Figures 4 and 5, the pivot point 9 includes a circular upper pivot portion 91 located on the upper side, a circular lower pivot portion 92 located on the lower side, and a connecting member 93 that rotatably connects the upper pivot portion 91 and the lower pivot portion 92 in a state where they are stacked vertically. The rear end of the first blade 5 and the front end of the left operating portion 7 are integrated with the upper pivot portion 91. The rear end of the second blade 6 and the front end of the right operating portion 8 are integrated with the lower pivot portion 92. The pivot point 9 is preferably located at a position 45% to 65% of the total length of the fish clamp 1 from the front end (tip). This allows the pair of blades 5, 6 to be widely spread apart.
[0031] As shown in Figures 4 and 5, the connecting member 93 is equipped with a first connecting portion 94 having a cylindrical shaft portion 94B that can be inserted into a lower through-hole 92A formed in the center of the lower rotating portion 92 and an upper through-hole 91A formed in the center of the upper rotating portion 91 and has a female thread 94N formed on its inner peripheral surface, and has a circular head 94A formed at one end (lower end) of the shaft portion 94B with an outer diameter dimension larger than that of the lower through-hole 92A, and a second connecting portion 95 having a shaft portion 95B that can be inserted into the upper through-hole 91A and has a male thread 95N formed on its outer surface that can be screwed into and released from the female thread 94N, and has a circular head 95A formed at one end (upper end) of the shaft portion 95B with an outer diameter dimension larger than that of the upper through-hole 91A.
[0032] The biasing means 4 includes a coil spring 41 (see FIG. 5) accommodated in an arc-shaped groove 91M formed in the upper pivoting portion 91, and a rod-shaped abutment portion 42 (see FIG. 4) provided on the upper surface of the lower pivoting portion 92 so as to protrude upward and enter the groove 91M of the upper pivoting portion 91 to abut one end of the coil spring 41. Therefore, by operating the pair of operating portions 7, 8 of the fish clamping device 1, which is biased to the open state shown in FIG. 2, toward the closing side, that is, toward each other, the pair of blades 5, 6 are operated toward the closing side, and at the same time, the abutment portion 42 rotates clockwise, moving the coil spring 41 toward the contracting side (see FIG. 1). When the user releases the pair of operating portions 7, 8 of the fish clamping device 1, the biasing force of the coil spring 41 toward the expanding side pushes the abutment portion 42 within the groove 91M and rotates it counterclockwise, thereby placing the fish clamping device 1 in the open state (see FIG. 2).
[0033] A through-hole 6A is formed in the front end (tip) 61A of the second blade 6, penetrating in the approaching / separating direction (see FIG. 4). The through-hole 6A is a substantially rectangular through-hole that is long in the front-rear (longitudinal) direction, and the front end (tip) 51A of the first blade 5 passes through the through-hole 6A when the pair of blades 5, 6 approach each other (see FIG. 1). In FIG. 1, the pair of blades 5, 6 are in the fully closed state, and the first protrusions 53a, 53a of the tip 51A of the first blade 5 protrude to the left from the second blade 6. By configuring the front end (tip) 51A of the first blade 5 to penetrate the through-hole 6A of the second blade 6, it is possible to prevent the blades 5, 6 from increasing in size in the direction perpendicular to the rotation direction, compared to a configuration in which the position of the tip of one blade is shifted relative to the tip of the other blade in the direction perpendicular to the rotation direction so as to prevent interference when the tip of the first blade 5 and the tip of the second blade 6 approach each other.
[0034] The present invention is not limited to the above-described embodiment.
[0035] In the above embodiment, the tip of the first blade 5 passes through the through-hole 6A of the second blade 6 so that the tip of the first blade 5 and the tip of the second blade 6 do not interfere with each other when the pair of blades 5, 6 approach each other, and thus the tip of the first blade 5 and the tip of the second blade 6 cross each other in the approaching / separating direction. However, the tip of one of the blades may be shifted in a direction perpendicular to the approaching / separating direction so that the tip of one blade does not interfere with the tip of the other blade when the tip of the first blade 5 and the tip of the second blade 6 approach each other, and thus the two blades may cross each other in the approaching / separating direction.
[0036] In the above embodiment, the first blade 5 is configured from two members, the plate-shaped metal tooth portion 51 and the support portion 52 that supports the tooth portion 51, but it may be configured from a single member. In this case, the material may be any material, such as metal, synthetic resin, or a composite material.
[0037] Furthermore, in the above embodiment, a coil spring is used as the biasing means 4, but a leaf spring, a torsion coil spring, or the like may also be used.
[0038] In the above embodiment, the front end (tip) of the second blade 6 is shown as a through hole as the through portion 6A that penetrates in the approaching / separating direction, but it may also be a notch.
[0039] In the above embodiment, the blade thickness D at the front end 51A of the first blade 5 is thinner than the blade thickness d at the front end (tip end) 61A of the second blade 6, but the blade thickness over the entire front-to-rear direction of the first blade 5 may be thinner than the blade thickness d at the front end (tip end) 61A of the second blade 6. Furthermore, the thickness D of the front end 51A of the first blade 5 may be tapered so as to become thinner toward the tip. [Explanation of symbols]
[0040] REFERENCE SIGNS LIST 1...fish clamp, 2...first arm, 3...second arm, 4...urging means, 5...first blade, 6...second blade, 6A...penetration portion, 7, 8...operation portion, 7A...first extension portion, 7B...first gripping portion, 8A...second extension portion, 8B...second gripping portion, 7W, 8W...bending portion, 7a, 8a...long hole, 7b, 8b...long hole, 9...rotation fulcrum portion, 41...coil spring, 42...contact portion, 51...tooth portion, 51A...front end portion (tip portion), 52...support portion, 52A...front end, 53...first tooth, 53a...first protrusion, 54...second tooth, 54a ...second protrusion, 54b...curved surface, 61A...front end (tip), 61a, 61b...inner surface, 62...first tooth, 62a...first protrusion, 63...second tooth, 63a...second protrusion, 91...upper rotating portion, 91A...upper through-hole, 91M...groove portion, 92...lower rotating portion, 92A...lower through-hole, 93...connecting member, 94...first connecting portion, 94A...head, 94B...shaft portion, 94N...female thread, 95...second connecting portion, 95A...head, 95B...shaft portion, 95N...male thread, F...fish, Fa...one side surface, Fb...other side surface, G...ground, H...angle
Claims
1. A pair of blades located at the tip end and capable of approaching and separating from each other; A pair of operating parts located on the base end side are operated to operate the pair of blades; a pivot point portion located on the base end side of the pair of blades and on the tip end side of the pair of operating units, the pivot point portion pivotally connecting the pair of blades and the pair of operating units; Equipped with The pair of blades includes a first blade and a second blade, A fish clamp in which the first blade is thinner than the second blade in terms of blade thickness in a direction perpendicular to the direction of approach and separation at the tip portions of the pair of blades.
2. 2. The fish clamping tool according to claim 1, wherein when the pair of blades approach each other, the tip of the first blade and the tip of the second blade cross each other in the direction of approaching and separating.
3. The pair of operation parts have bending parts that bend in an extension direction so that base ends thereof approach each other, 3. The fish clamp according to claim 1, wherein the pivot point is located at a position 45% to 65% of the total length of the fish clamp from the tip.
4. the second blade has a through-portion that penetrates in the approaching / separating direction, The fish clamping tool according to claim 2 , wherein the tip of the first blade passes through the penetration portion when the pair of blades approach each other.
Citation Information
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