Fish body measuring instrument

Abstract

To provide a fish measuring device that can easily and accurately measure the length and mass of a fish without damaging it or causing it stress. [Solution] The fish measuring instrument is constructed by overlapping flexible sheets, with at least one flexible sheet located on the overlapping direction being transparent, and having drainage holes formed in the flexible sheet on one side where the flexible sheets are integrated, and having a hole or loop for hanging a hook on the other side of a pair of sides facing in a second direction, and a scale section arranged along at least one of the pair of sides facing in a first direction of the main body, having a scale visible from the side where the transparent flexible sheet is located, and a reference line is arranged perpendicular to the scale section on the transparent flexible sheet of the main body, aligned with the zero point of the scale on the scale section.

Description

Technical Field

[0006] , , , , , , ,

[0005] ,

[0001] The present invention relates to a fish body measuring device.

Background Art

[0002] In fishing, it may be necessary to measure the body length and mass of the caught fish. When measuring the body length of a fish, that is, the length of the fish body, conventionally, "flat placement measurement", in which the fish body is directly placed on a flat scale for length measurement, has been the mainstream. Also, when measuring the mass of a fish body, in many cases, a hook is hooked on the mouth or jaw of the fish and the fish is suspended from a scale for measurement.

[0003] When measuring the length of a fish body by flat placement measurement, in order to prevent the still-living fish from struggling and shifting from the position of the scale, it was necessary to hold down the fish body by hand or fix the fish body with a restraint such as a band. Such restraint of the fish body is likely to lead to damage to the fish body such as scale peeling and surface wounds, and alternative means have been under consideration.

[0004] Patent Document 1 discloses a cylindrical fish body measuring instrument in which a scale portion is formed along the length direction of the fish body stored in a cylindrical fish body storage bag made of a flexible material. Patent Document 1 also discloses that the front portion of the fish body storage bag located in front of the zero point of the scale portion of the cylindrical fish body measuring instrument is used as a folding portion, and the front end opening portion of the fish body storage bag can be deformed into a closed state by folding the folding portion. <​​​​​​​​​​​​​​​​​​​​​In the fish measuring instrument disclosed in Patent Document 1, the scale is formed on a flexible storage bag that deforms along the surface of the fish when the fish is stored inside. As a result, the scale read does not accurately reflect the length of the fish.

[0007] Furthermore, the fish measuring device disclosed in Patent Document 1 is intended only for measuring the length of the fish, and is not disclosed for use in measuring the mass of the fish. For this reason, the fish measuring device disclosed in Patent Document 1 does not have a mechanism to drain the water that enters the bag along with the fish, and therefore, it is problematic that it is not possible to accurately measure the mass of the fish.

[0008] The method of suspending a fish by hooking it through its mouth or jaw, which is often used to measure the mass of a fish, has the problem of carrying a high risk of damaging the fish's jaw joint or inside its mouth.

[0009] The aforementioned problem of fish damage is particularly pronounced in bass fishing, where fish are released after being measured.

[0010] In view of the above problems, the object of the present invention is to provide a fish measuring instrument that can easily and accurately measure the length and mass of a fish without damaging the fish's body and while reducing the stress on the fish. [Means for solving the problem]

[0011] The inventors of the present invention have diligently studied and found that the above problems can be solved by arranging a scale for measuring the length of a fish along the edge of the main body which has a space for storing a fish, and by providing the main body with a hole or loop for hanging a hook and a drainage section arranged opposite thereto, thereby completing the present invention.

[0012] One aspect of the present invention for solving the aforementioned problems is that it is constructed by overlapping flexible sheets, wherein at least one of the flexible sheets located on the overlapping direction is transparent, and in a plan view, the outer shape is defined by a pair of sides facing each other in a first direction and a pair of sides facing each other in a second direction perpendicular to the first direction, and the overlapping flexible sheets are integrated at one of the pairs of sides facing each other in the first direction and at least one of the pairs of sides facing each other in the second direction, thereby forming a space for storing a fish between the opposing flexible sheets, and the flexible sheets are detachable from each other on the other side of the pair of sides facing each other in the first direction The fish measuring instrument comprises a chuck portion that connects to a main body portion having drainage holes formed in the flexible sheets on one side of a pair of sides facing each other in the second direction, where the flexible sheets are integrated, and a hole or loop for hanging a hook on the other side of the pair of sides facing each other in the second direction, and a scale portion arranged along at least one of the pair of sides of the main body portion facing each other in the first direction, and having a scale visible from the side on which the transparent flexible sheets are arranged, and a reference line arranged perpendicular to the scale portion on the transparent flexible sheet of the main body portion, aligned with the zero point of the scale on the scale portion.

[0013] Furthermore, another aspect of the present invention for achieving the above objectives is that it is constructed by overlapping flexible sheets, wherein at least one of the flexible sheets located on the overlapping direction is transparent, and in plan view, its outer shape is defined by a pair of sides facing a first direction and a pair of sides facing a second direction perpendicular to the first direction, and the overlapping flexible sheets are integrated at one of the pairs of sides facing the first direction, thereby forming a space for storing a fish between the opposing flexible sheets, and a chuck portion is provided on the other side of the pair of sides facing the first direction to allow the flexible sheets to be joined together. The fish measuring instrument comprises a main body having a hole or loop for hanging a hook near one of a pair of sides facing each other in the second direction, a scale portion having markings visible from the side on which the transparent flexible sheet is placed, and a water-permeable reference member arranged in the main body perpendicular to the scale portion, aligned with the zero point of the markings on the scale portion, and bonded to the opposing flexible sheet, along the side of the pair of sides facing each other in the second direction on which the hole or loop is not formed. [Effects of the Invention]

[0014] According to the present invention, it is possible to provide a fish measuring instrument that can easily and accurately measure the length and mass of a fish without damaging the fish's body and while reducing the stress it causes the fish. [Brief explanation of the drawing]

[0015] [Figure 1] This is a plan view showing one embodiment of a fish body measuring instrument according to one aspect of the present invention. [Figure 2] This is a left side view showing one embodiment of a fish body measuring instrument according to one aspect of the present invention. [Figure 3] This is a plan view showing a modified example of a fish body measuring instrument according to one aspect of the present invention. [Figure 4] This is a plan view showing another modified example of a fish body measuring device according to one aspect of the present invention. [Figure 5] This is a plan view showing another modified example of a fish body measuring device according to one aspect of the present invention. [Figure 6] This is a plan view showing one embodiment of a fish body measuring device according to another aspect of the present invention. [Figure 7] This is a left side view showing one embodiment of a fish body measuring instrument according to another aspect of the present invention. [Figure 8] Figures 1 and 2 are plan views showing examples of how the fish measuring device is used. [Modes for carrying out the invention]

[0016] The configuration and effects of the present invention will be described below with reference to the drawings. The embodiments disclosed below are merely examples to aid in understanding the present invention, and the present invention is not limited to these embodiments.

[0017] [First aspect] An embodiment of a fish body measuring device according to one aspect of the present invention (hereinafter, may be simply described as "the fish body measuring device according to the first embodiment") is shown in FIGS. 1 and 2. The fish body measuring device 100 according to the first embodiment is composed of the superposition of flexible sheets 11 and 12, and has a pair of sides 1a and 1b facing in the first direction in a plan view, and a pair of sides 2a and 2b facing in a second direction perpendicular to the first direction. The outer shape is defined by the pair of sides 2a and 2b, and at sides 1a and 2b, the superposed flexible sheets are integrated with each other, so that a space for storing a fish body is formed between the flexible sheets facing each other. On the side of side 1b, a main body portion 10 is provided with a chuck portion 13 for detachably coupling the flexible sheets to each other. Further, the main body portion 10 has a hole 14 for hanging a hook for suspension on the side of side 2a, and has drain holes 16 formed in the flexible sheets 11 and 12 on the side of side 2b. In FIGS. 1 and 2, the direction perpendicular to the first direction and the second direction respectively (the direction in which the flexible sheets 11 and 12 are superposed) is shown as the third direction. The flexible sheets 11 and 12 are integrated at side la, and are detachably coupled at side 1b by the action of the chuck portion 13. Along the side 1a of the main body portion 10, a scale portion 20 having a scale 21 is arranged. Further, on the transparent flexible sheet 11 of the main body portion 10, a reference line 15 is arranged perpendicular to the scale portion 20 in alignment with the zero point of the scale 21 in the scale portion 20. In FIG. 1, the scale portion 20 is arranged along the side 1a of the main body portion 10, but the arrangement of the scale portion 20 is not limited to this, and it may be arranged along the side 1b of the main body portion 10, or a plurality of scale portions 20 may be arranged along both sides 1a and 1b of the main body portion 10.

[0018] Once the fish body is stored in the main body portion 10, the fish body measuring device 100 according to the first embodiment can measure the length and mass of the fish body at one time without directly touching the fish body thereafter, so that physical damage to the fish body and stress applied to the fish can be reduced.

[0019] In addition, in the fish body measuring device 100 according to the first embodiment, since the scale portion 20 is configured separately from the main body portion 10, even when the flexible sheets 11 and 12 are inflated due to the storage of the fish body in the main body portion 10, the length of the fish body can be accurately measured.

[0020] Furthermore, in the fish body measuring device 100 according to the first embodiment, since the flexible sheets 11 and 12 have a plurality of holes 16 on the side of the side 2b facing the hole 14, by simply hanging a hook on the hanging hole 14 and hanging it, water can be drained from the hole 16 located on the lower side, and the mass of the fish body can be accurately measured.

[0021] Hereinafter, each part constituting the fish body measuring device 100 according to the first embodiment will be described in detail.

[0022] (Main body portion) The main body portion 10 is composed of flexible sheets 11 and 12. The material constituting the flexible sheets 11 and 12 and the thickness of the sheets are not limited as long as they deform along the outer shape of the fish body without applying an external force when placed on the fish body and return to a planar shape after removing the fish body. Examples of the material constituting the sheet include polyurethane-based thermoplastic elastomer (TPU), polypropylene (PP), polyethylene terephthalate (PET), polymethylpentene (PMP), polyvinyl chloride (PVC), ethylene-vinyl acetate copolymer resin (EVA), etc. Further, the sheet may be a laminate of different materials such as coated paper or laminated paper, or a woven or non-woven fabric combining fibrous materials. Examples of the thickness of the sheet include 10 μm or more and 1000 μm or less.

[0023] The flexible sheets 11 and 12 are overlapped in the thickness direction to form the main body portion 10. The overlapping method may be to overlap the separately prepared flexible sheets 11 and 12, or the flexible sheets 11 and 12 may be formed by folding a single sheet.

[0024] At least one of the flexible sheets 11 and 12 is transparent. This allows for accurate measurement of the length of the fish, as the ends of the fish body can be seen. In this disclosure, "transparent" means a degree of light transmittance such that the outer shape, including the ends of the fish body, can be seen when placed on the fish body, and is not limited to colorless transparency. Therefore, even if it is milky white or colored, if it has the aforementioned light transmittance, it falls under the definition of "transparent" in this disclosure.

[0025] Preferably, the transparent flexible sheet 11 or 12 is made of a material with low light reflectivity, or has a surface treatment or coating to suppress light reflection. By suppressing light reflection from the transparent flexible sheet 11 or 12, reflections and glare can be suppressed when taking photographs of the fish body while it is stored in the main body 10.

[0026] The main body portion 10 is defined by a pair of sides 1a and 1b facing each other in a first direction in a plan view, and a pair of sides 2a and 2b facing each other in a second direction perpendicular to the first direction. In this disclosure, "side" means a line that defines the outline of the main body portion 10 and faces each other in the first direction and the second direction, respectively. Therefore, not only line segments that are parallel to each other, but also line segments that face each other at an angle, curves, and wavy lines are considered "sides" in this disclosure as long as they face each other in the mutually orthogonal first direction and the second direction.

[0027] The main body 10 is formed by integrating the overlapping flexible sheets 11 and 12 at side 1a, which is one of a pair of sides facing each other in the first direction, and side 2b, which is one of a pair of sides facing each other in the second direction. This creates a space for storing a fish between the flexible sheets 11 and 12. The method of integrating the flexible sheets 11 and 12 is not limited to this method. Methods include fusing sides 1a and 2b along their entire length, intermittently fusing them along sides 1a and 2b, or sewing them along sides 1a and 2b. In addition, if the flexible sheets 11 and 12 are formed by folding a single sheet as described above, a method may be adopted in which the folded portion is side 1a or side 2b.

[0028] The main body 10 is provided with a zipper portion 13 on the other side 1b of a pair of sides facing each other in the first direction, which allows the flexible sheets 11 and 12 to be connected to each other in a detachable manner. By opening the zipper portion 13, the spacing between the flexible sheets 11 and 12 can be widened, allowing for efficient storage of fish bodies in the main body 10. After storing the fish bodies, closing the zipper portion 13 prevents the fish from thrashing around inside the main body 10 and jumping out. Examples of zipper portions 13 include zippers, hooks, snap buttons, hook-and-loop fasteners, etc. Among these, zippers with sliders are preferred because they allow for easy insertion and removal of fish bodies and can be opened and closed quickly. Furthermore, as shown in Figure 3, the zipper portion 13 may be configured to connect the flexible sheets 11 and 12 to each other at multiple positions in the first direction so that the closing position can be adjusted according to the size of the fish body.

[0029] The main body 10 has a hole 14 for attaching a hanging hook near one of the pair of sides facing each other in the second direction, which is side 2a. By inserting the hook into the hole 14 and suspending the device from a scale, the mass of the fish can be measured. The position of the hole 14 is not limited, but from the viewpoint of stabilizing the posture of the fish measuring device when suspended, it is preferable to place it near the midpoint of side 2a. The shape of the hole 14 is also not particularly limited, but from the viewpoint of durability, a shape without corners, i.e., circular, elliptical, or egg-shaped, is preferable. Furthermore, from the viewpoint of improving durability, eyelets may be placed around the periphery of the hole for reinforcement. In the fish measuring device 100 according to the first embodiment, the part for attaching the hanging hook is formed as a hole 14, but in a fish measuring device according to one aspect of the present invention, the part for attaching the hanging hook may be a sheet or film with a hole attached to side 2a, or it may be a loop such as a string with both ends glued to side 2a.

[0030] At edge 2a of the main body 10, the flexible sheets 11 and 12 may or may not be joined together to form a single unit. When the flexible sheets are joined at edge 2a, it is possible to prevent the fish from thrashing around and jumping out before the zipper 13 is closed when storing the fish in the main body 10. On the other hand, when the flexible sheets are not joined at edge 2a, opening the zipper 13 also opens edge 2a, making it easier to store the fish in the main body 10. When integrating the flexible sheets 11 and 12, the same method as when integrating them at edges 1a and 2b described above can be used.

[0031] The flexible sheets 11 and 12 constituting the main body 10 are integrated at side 2b, which is one of a pair of sides facing each other in the second direction and does not have a hole 14 for hanging a suspension hook. A drainage hole 16 is formed on side 2b. Because the drainage hole 16 is located on the opposite side from the hole 14 for hanging a suspension hook, water can be drained from the drainage hole 16 located on the lower side simply by hanging the fish measuring instrument 100 by attaching a hook to the hole 14, allowing for accurate measurement of the fish's mass. At this time, because the flexible sheets 11 and 12 are integrated at side 2b, it is possible to prevent the fish from falling due to incomplete closure that may occur if they were freely joined at side 2b. The shape of the drainage hole 16 is not particularly limited, and circular, elliptical, oblong, egg-shaped, polygonal, etc., can be used. Furthermore, the size and number of drainage holes 16 are not particularly limited and can be determined as appropriate, taking into consideration the strength of the flexible sheets 11 and 12. Other examples of the shape and arrangement of drainage holes 16 include a single notch provided on the side adjacent to side 1a on side 2a, as shown in Figure 4, and multiple intermittent notches provided on side 2a, as shown in Figure 5.

[0032] The main body 10 has a transparent, flexible sheet 11 on which a reference line 15 is positioned perpendicular to the scale section 20, aligned with the zero point of the scale 21 in the scale section 20, which will be described later. By positioning the reference line 15 to align with the zero point of the scale 21 in the scale section 20, when measuring the length of a fish, it is possible to position it at the zero point simply by aligning its end with the reference line 15. The reference line 15 does not need to be drawn as a line; it may be a series of points or other patterns aligned in a straight line.

[0033] (Scale section) The scale section 20 is positioned along at least one of a pair of sides 1a and 1b of the main body section 10 that face each other in the first direction. As described above, since the scale section 20 is configured separately from the main body section 10 that stores the fish, even if the flexible sheets 11 and 12 expand when the fish is stored in the main body section 10, deformation of the scale section 20 is suppressed, and the length of the fish can be measured accurately. If the scale section 20 is positioned along the side 1a of the main body section 10 where the flexible sheets 11 and 12 are integrated, the fish can be brought closer to the scale section 20 to measure its length, thus enabling more accurate measurement.

[0034] The method for integrating the scale section 20 with the main body section 10 is not particularly limited. Examples include, as shown in Figures 1 and 2, extending at least one of the flexible sheets 11 and 12 (flexible sheet 12 in the figures) that are integrated at edge 1a beyond edge 1a, and placing (including printing) the scale section 20 on the extended flexible sheet; as shown in Figures 6 and 7 described later, extending the flexible sheets 11 and 12 that are integrated at edge 1a beyond edge 1a, and sandwiching (including printing) the scale section 20 between the extended flexible sheets 11 and 12; and bonding the scale section 20 to edge 1a.

[0035] The scale section 20 has markings 21 that are visible from the side where the transparent flexible sheet 11 or 12 is placed. This arrangement of markings 21 allows for accurate measurement because the external shape of the fish body and the markings 21 can be viewed simultaneously.

[0036] It is preferable that both the flexible sheets 11 and 12 are transparent, and the scale portion 20 has a scale 21 that is visible from both sides in the overlapping direction of the flexible sheets 11 and 12, in that it allows for measuring the length of the fish from either side of the fish measuring instrument 100. This advantage is beneficial because it allows for measuring the length of the fish from the side that is visible when the fish is stored, regardless of the dominant hand of the worker storing the fish in the main body portion 10. In other words, the orientation of the fish measuring instrument 100 shown in Figure 1 is suitable for holding it in the left hand and storing a fish held in the right hand, but when holding it in the right hand and storing a fish with the left hand, it is easier to work if the front and back are reversed. Therefore, if a scale is also placed on the back side, it becomes possible to measure the length without reversing the front and back after storage.

[0037] The material used to form the scale portion 20 is not particularly limited, but it is preferable to use the same material as the main body portion 10, as this allows for integral molding with the main body portion 10 and reduces manufacturing costs. On the other hand, it is preferable to use a material with a higher Young's modulus than the material used to form the flexible sheet, as this suppresses deformation when a fish is stored in the main body portion 10 and enables more accurate measurement.

[0038] [Second aspect] Figures 6 and 7 show an embodiment of a fish measuring device according to another aspect of the present invention (hereinafter sometimes simply referred to as "fish measuring device according to the second embodiment"). The fish measuring device 200 according to the second embodiment is constructed by overlapping flexible sheets 11 and 12, similar to the fish measuring device 100 according to the first embodiment, and its outer shape is defined by a pair of sides 1a and 1b facing each other in a first direction in a plan view, and a pair of sides 2a and 2b facing each other in a second direction perpendicular to the first direction. At side 1a, the overlapping flexible sheets are integrated, forming a space for storing a fish between the opposing flexible sheets. The side of side 1b is provided with a chuck portion 13 for connecting the flexible sheets so that they can be separated, and the side of side 2a is provided with a main body portion 10 having a hole 14 for hanging a hook. The flexible sheets 11 and 12 are integrated at edge 1a and are joined together at edge 1b by the action of the chuck portion 13. A scale portion 20 having a scale 21 is arranged along edge 1a of the main body portion 10. The fish measuring instrument 200 according to the second embodiment is characterized in that a water-permeable reference member 30 is arranged within the main body portion 10, that is, between the flexible sheets 11 and 12, along edge 2b, perpendicular to the scale portion 20, and bonded to the flexible sheets 11 and 12 respectively, so as to be aligned with the zero point of the scale 21 on the scale portion 20.

[0039] In the second embodiment of the fish measuring instrument 200, the reference member 30 is positioned to align with the zero point of the scale markings 21 of the scale section. Therefore, when measuring the length of a fish, it can be positioned at the zero point simply by bringing its end into contact with the reference member 30. Furthermore, because the reference member 30 maintains a wide spacing between the flexible sheets 11 and 12 near the zero point, it has the advantage of easily aligning the end of the fish with the zero point.

[0040] Furthermore, in the second embodiment of the fish body measuring instrument 200, since the reference member 30 positioned along the side 2b opposite the hole 14 is permeable to water, water can be smoothly drained from the reference member 30 located directly below by simply hanging it on a hook in the hole 14, and the mass of the fish body can be accurately measured.

[0041] The structure and arrangement of the reference member 30, which constitutes the fish body measuring instrument 200 according to the second embodiment, will be described in detail below. Parts of the fish body measuring instrument according to the second embodiment that are common to the first embodiment will not be described.

[0042] (Reference member) The reference member 30 is positioned within the main body 10, along the side 2b of a pair of sides facing each other in the second direction, the side without the hole 14, and is bonded to the opposing flexible sheets 11 and 12 perpendicular to the scale 20, aligning with the zero point of the scale 21 on the scale 20. By positioning the reference member 30 within the main body 10, perpendicular to the scale 20, and bonded to the opposing flexible sheets 11 and 12, aligning with the zero point of the scale 21 on the scale 20, as described above, a wide gap is maintained between the flexible sheets 11 and 12 near the zero point of the scale 21, making it easy to align the end of the fish body to the zero point. Furthermore, by bonding the reference member 30 to the flexible sheets 11 and 12 at a position opposite the hole 14, the gap between the flexible sheets 11 and 12 is opened by the weight of the fish body, preventing the fish body from falling. The thickness of the reference member 30 is not particularly limited, but examples include a thickness of 0.6 mm or more and 30 mm or less.

[0043] The reference member 30 is permeable to water. This allows for accurate measurement of the fish's mass simply by inserting a hook into the suspension hole 14 and suspending the fish, allowing any moisture adhering to the fish to be discharged from the reference member 30. Examples of permeable materials used for the reference member 30 include porous foam such as sponge.

[0044] [How to use] Figure 6 shows an example of the usage state of the fish measuring instrument 100 according to the first embodiment of the present invention. After placing the caught fish between the overlapping flexible sheets 11 and 12 and closing the zipper with a slider that constitutes the zipper section 13, the length can be measured by aligning the tip of the fish's jaw with the reference line 15 and reading the scale 21 on the scale section 20 at the tip of the tail fin. Alternatively, with the fish stored inside and the zipper section 13 closed, the scale's hook can be inserted into the hole 14 for attaching the hanging hook, and the instrument can be suspended with its head down. This allows the water that was inside the main body along with the fish to be drained through the drainage hole 16, enabling accurate measurement of the fish's mass.

[0045] This specification also discloses the following technologies:

[0046] [1] It is constructed by overlapping flexible sheets, The flexible sheet located on at least one side in the overlapping direction is transparent. In a plan view, the outline is defined by a pair of sides facing each other in a first direction, and a pair of sides facing each other in a second direction perpendicular to the first direction. The overlapping flexible sheets are integrated along one of the pair of sides facing each other in the first direction and at least one of the pair of sides facing each other in the second direction, thereby forming a space for storing a fish between the opposing flexible sheets. On the other side of a pair of sides facing the first direction, there is a chuck portion that connects the flexible sheets together so that they can be joined and separated, Of the pair of sides facing each other in the second direction, one side where the flexible sheets are integrated has drainage holes formed in the flexible sheet. One of the pair of sides facing the second direction has a hole or loop for attaching a hanging hook. Main body, and It is arranged along at least one of the pair of sides of the main body that are opposite to each other in the first direction, The transparent flexible sheet has a scale that is visible from the side where it is placed. Scale section Equipped with, The transparent flexible sheet of the main body has a reference line positioned perpendicular to the scale portion, aligned with the zero point of the scale markings in the scale portion. Fish body measuring device.

[0047] [2] It is constructed by overlapping flexible sheets, The flexible sheet located on at least one side in the overlapping direction is transparent. In a plan view, the outline is defined by a pair of sides facing each other in a first direction, and a pair of sides facing each other in a second direction perpendicular to the first direction. At one of the two opposing sides in the first direction, the overlapping flexible sheets are integrated, thereby forming a space for storing a fish between the opposing flexible sheets. On the other side of a pair of sides facing the first direction, there is a chuck portion that connects the flexible sheets together so that they can be joined and separated, One side of the pair of sides facing the second direction has a hole or loop for attaching a hanging hook. Main body, It is arranged along at least one of the pair of sides of the main body that are opposite to each other in the first direction, The transparent flexible sheet has a scale that is visible from the side where it is placed. Scale section, and Within the main body, along the side of the second pair of sides facing each other that does not have the hole or loop formed, aligned with the zero point of the scale on the scale, perpendicular to the scale, and bonded to the opposing flexible sheets, Permeable Reference member Equipped with Fish body measuring device.

[0048] [3] The fish measuring instrument according to [1] or [2], wherein the scale portion is arranged along the edge on the main body where the flexible sheets are integrated.

[0049] [4] The fish measuring instrument according to any one of [1] to [3], wherein the main body portion has transparent flexible sheets facing each other, and the scale portion has markings visible from both sides in the overlapping direction.

[0050] [5] The fish measuring instrument according to any one of [1] to [4], wherein the scale portion is formed of a material with a higher Young's modulus than the material of the flexible sheet.

[0051] [6] The fish measuring device according to any one of [1] to [5], wherein the chuck portion is configured to connect the flexible sheets to each other at multiple positions in the first direction. [Industrial applicability]

[0052] According to the present invention, a fish measuring instrument can be provided that can easily and accurately measure the length and mass of a fish without damaging the fish's body and while reducing stress on the fish. The fish measuring instrument according to the present invention can be suitably used in fishing methods such as bass fishing, where caught fish are measured and then released. [Explanation of Symbols]

[0053] 100 Fish Measuring Instruments 10 Main body 11, 12 Flexible Sheet 1a, 1b (a pair of sides opposite each other in the first direction) 2a, 2b (a pair of sides opposite each other in the second direction) 13. Zipper part 14 holes (for hanging hooks) 15. Reference Line 16 holes (for drainage) 20 Scale section 21 divisions 30 Reference Member

Claims

1. It is constructed by overlapping flexible sheets, The flexible sheet located on at least one side in the overlapping direction is transparent. In a plan view, the outline is defined by a pair of sides facing each other in a first direction, and a pair of sides facing each other in a second direction perpendicular to the first direction. The overlapping flexible sheets are integrated along one of the pair of sides facing each other in the first direction and at least one of the pair of sides facing each other in the second direction, thereby forming a space for storing a fish between the opposing flexible sheets. On the other side of a pair of sides facing the first direction, there is a chuck portion that connects the flexible sheets together so that they can be joined and separated, Of the pair of sides facing each other in the second direction, one side where the flexible sheets are integrated has drainage holes formed in the flexible sheet. One of the pair of sides facing the second direction has a hole or loop for attaching a hanging hook. Main body, and It is arranged along at least one of the pair of sides of the main body that are opposite to the first direction, The transparent flexible sheet has a scale that is visible from the side where it is placed. Scale section Equipped with, The transparent flexible sheet of the main body has a reference line positioned perpendicular to the scale portion, aligned with the zero point of the scale markings in the scale portion. Fish body measuring device.

2. It is constructed by overlapping flexible sheets, The flexible sheet located on at least one side in the overlapping direction is transparent. In a plan view, the outline is defined by a pair of sides facing each other in a first direction, and a pair of sides facing each other in a second direction perpendicular to the first direction. At one of the two opposing sides in the first direction, the overlapping flexible sheets are integrated, thereby forming a space for storing a fish between the opposing flexible sheets. On the other side of a pair of sides facing the first direction, there is a chuck portion that connects the flexible sheets together so that they can be joined and separated, One side of the pair of sides facing the second direction has a hole or loop for attaching a hanging hook. Main body, It is arranged along at least one of the pair of sides of the main body that are opposite to the first direction, The transparent flexible sheet has a scale that is visible from the side where it is placed. Scale section, and Within the main body, along the side of the second pair of sides facing each other that does not have the hole or loop formed, aligned with the zero point of the scale on the scale, perpendicular to the scale, and bonded to the opposing flexible sheets, Permeable Reference member Equipped with Fish body measuring device.

3. The fish measuring instrument according to claim 1 or 2, wherein the scale portion is arranged along the edge on the main body portion where the flexible sheets are integrated.

4. The fish measuring instrument according to claim 1 or 2, wherein the main body portion has transparent flexible sheets facing each other, and the scale portion has a scale visible from both sides in the overlapping direction.

5. The fish measuring instrument according to claim 1 or 2, wherein the scale portion is formed of a material with a higher Young's modulus than the material of the flexible sheet.

6. The fish body measuring device according to claim 1 or 2, wherein the chuck portion is configured to connect the flexible sheets to each other at multiple positions in the first direction.

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