Fishing hook remover

Abstract

To provide a fishhook detachment device capable of maintaining ease of processing and production, preventing deformation of a movable body and maintaining preferable operation ability.SOLUTION: A fishhook detachment device comprises: a guide cylinder 2 having an opening 2a and a fishhook holding groove 21 on a front end thereof; and a plate-shaped movable body 3 which protrudes to a rear end side X2 from the opening 2a to the guide cylinder 2, is fitted movably in a cross direction X, and comprises, on a protrusion tip end part, a fishhook engagement part 31 for engaging a fishhook 100 to the fishhook holding groove 21 by moving to the rear end side X2 of the guide cylinder 2. The fishhook 100 can be engaged to the fishhook engagement part 31 and the fishhook engagement part penetrates in a thickness direction of the plate-shaped movable body 3, and the plate-shaped movable body 3 has a release passage part 34 to be connected to the fishhook engagement part 31. The release passage part 34 has: a release face 34a which is formed in a shape so that, a dimension from a side face 3b of the plate-shaped movable body 3 decreases gradually as going to the rear end side X2 from a front end side X1, and is communicated with the side face 3b of the plate-shaped movable body 3.SELECTED DRAWING: Figure 3

Description

Technical Field

[0001] The present invention relates to a fishing hook remover.

Background Art

[0002] Conventionally, there is known a fishing hook remover configured to move a linear moving body having a fishing hook locking portion formed by bending a wire into a hook shape in the front-rear direction with respect to a guide cylinder (see, for example, Patent Document 1). On the other hand, due to ease of processing and manufacturing, and ease of positioning the grooves provided in the lever and the guide cylinder in the correct phase during assembly, for example, a hook-shaped fishing hook locking portion may be processed at the tip of a metal plate such as stainless steel.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, when using a plate-shaped moving body made of metal with a fishing hook locking portion formed, when removing the fishing hook, if a large torsional force is generated by twisting the fishing hook remover with the fishing hook locked by the fishing hook locking portion, the plate-shaped moving body may deform, making it difficult to move with respect to the guide cylinder. There was room for improvement in this regard.

[0005] The present invention has been made in consideration of such circumstances, and an object thereof is to provide a fishing hook remover that can prevent deformation of a moving body and maintain good usability while maintaining ease of processing and manufacturing.

Means for Solving the Problems

[0006] (1) Embodiment 1 of the hook remover according to the present invention is a hook remover for removing a hook from a fish that has been hooked, comprising: a guide cylinder having an opening and a hook-holding groove at one end in the longitudinal direction; and a plate-shaped movable body that protrudes from the opening toward one end of the guide cylinder, is mounted so as to be movable in the longitudinal direction, and has a hook-locking portion at its protruding tip that locks the hook in the hook-holding groove when it moves toward the other end of the guide cylinder, wherein the hook-locking portion is capable of locking the hook and penetrates through the plate-shaped movable body in the thickness direction, the plate-shaped movable body has a relief passage portion connected to the hook-locking portion, the relief passage portion is characterized in that the dimension from the side of the plate-shaped movable body gradually decreases as it moves from one end to the other end of the guide cylinder in the longitudinal direction, and has a relief surface that communicates with the side of the plate-shaped movable body.

[0007] According to Embodiment 1 of the hook remover of the present invention, when removing a hook from a fish, if the hook is locked to the hook locking portion of the plate-shaped moving body, a tensile force (a force toward one end of the plate-shaped moving body) is applied to the plate-shaped moving body by the hook, and a twisting load is applied in the direction of rotation around the cylindrical axis. This load causes a relief surface to be formed in the hook relief passage between the contact surface of the hook and the hook locking portion. along A force acts to move the hook, but the frictional force with the relief surface prevents the hook from moving. On the other hand, if the torsional load increases further and the force attempting to move the hook along the relief surface exceeds the frictional force with the relief surface, the hook will move along the relief surface and slip out from the hook locking part to the side of the plate-shaped moving body.

[0008] Thus, in this invention, when a torsional load is applied to the plate-shaped moving body, the fishhook, which is locked in the fishhook locking portion, can be released from the plate-shaped moving body. Therefore, even if the torsional load on the fishhook locking portion increases while the fishhook is locked in the fishhook locking portion, plastic deformation of the plate-shaped moving body can be prevented, and the problem of the plate-shaped moving body becoming unable to move relative to the guide cylinder can be suppressed.

[0009] (2) In aspect 2 of the present invention, in the hook remover of aspect 1, it is preferable that the relief surface is connected to the hook locking portion.

[0010] In this case, the fishhook is positioned at the fishhook locking portion when a torsional load is applied to the plate-shaped moving body, and a relief surface is provided to connect to this fishhook locking portion. Therefore, depending on the magnitude of the frictional force, the fishhook can be smoothly moved along the relief surface outward from the fishhook locking portion and released.

[0011] (3) A third aspect of the present invention is a fishhook remover according to aspect 1 or aspect 2, wherein the plate-shaped moving body is a stainless steel metal plate, and the inclination angle of the relief surface is preferably in the range of 30 to 50 degrees with respect to the longitudinal axis.

[0012] In this case, the present invention ensures that under small torsional loads, sufficient frictional force is maintained between the fishing hook and the relief surface, preventing the hook from moving and making it difficult to detach from the hook locking mechanism. However, when a large torsional load is applied to the hook remover, the fishing hook moves along the relief surface, exceeding the frictional force, and detaches from the hook locking mechanism and the hook remover. If the inclination angle of the relief surface is less than 30 degrees, even if a predetermined large torsional load is applied, the frictional force with the relief surface becomes large, which may cause the fishing hook to not move along the relief surface and the plate-shaped moving body to undergo plastic deformation. Furthermore, if the inclination angle of the relief surface exceeds 50 degrees, sufficient frictional force between the fishing hook and the relief surface cannot be secured, and the fishing hook will detach even under small torsional loads.

[0013] (4) A fourth aspect of the present invention is a fishhook remover in any one of the three aspects of the present invention, wherein one end of the guide cylinder is provided with a conical portion that tapers toward the opening, and inclined surfaces that are cut out of the conical portion on both sides of the plate surface of the plate-shaped moving body and inclined toward the plate-shaped moving body, and the fishhook holding groove is arranged on one end of the inclined surface.

[0014] In this case, the present invention has a conical shape at the front end of the guide tube and a sloping surface, making it easy to insert into the mouth of a fish and allowing the hook-locking portion of the plate-shaped moving body to reach the hook that has caught in the fish with high precision. Furthermore, by forming inclined surfaces on both sides of the guide cylinder that sandwich the plate-shaped moving body, the opening shape at the front end of the guide cylinder can be formed into a rectangular shape that is the same as the cross-sectional shape of the plate-shaped moving body. This allows the plate-shaped moving body to be guided by the guide cylinder in a stable position and moved in the front-to-back direction without being rotated. [Effects of the Invention]

[0015] The hook remover according to the present invention maintains ease of processing and manufacturing while preventing deformation of the moving parts and ensuring good operability. [Brief explanation of the drawing]

[0016] [Figure 1] This is a side view of a fishhook remover according to an embodiment of the present invention. [Figure 2] Figure 1 shows a longitudinal cross-sectional view along the cylindrical axis of the fishhook remover. [Figure 3] Figure 1 is an enlarged view of the main part of the front end of the hook remover shown in Figure 1, illustrating the state before the hook is held in the hook-holding groove. [Figure 4] Figure 3 shows the state in which the fishhook is held in the fishhook holding groove. [Figure 5] Figure 1 is an enlarged perspective view showing a cutaway of the key front end portion of the fishhook remover. [Figure 6] (a) and (b) are diagrams illustrating the action of holding the fishhook in the fishhook holding groove, and are views from the left and right directions in Figure 3. [Figure 7] Figure 3 shows the state in which the fishhook comes off. [Modes for carrying out the invention]

[0017] Hereinafter, embodiments of the fishhook remover 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 visible.

[0018] As shown in FIGS. 1 and 2, the fishhook remover 1 of the present embodiment is a jig used to remove the fishhook 100 (see FIG. 6) from a fish hooked during fishing.

[0019] The fishhook remover 1 includes a guide cylinder 2 having an opening 2a and a fishhook holding groove 21 at one end in the longitudinal direction (front-rear direction X), and a plate-shaped moving body protruding from the opening 2a to the one end side (front side X1) with respect to the guide cylinder 2 and movably attached in the front-rear direction X. The plate-shaped moving body 3 has a fishhook locking portion 31 at the protruding tip end that holds the fishhook 100 together with the fishhook holding groove 21 when moving to the other end side (rear side X2) of the guide cylinder 2, a handle portion 4 provided at the other end (rear end) of the guide cylinder 2, and a lever portion 5 protruding in the outer diameter direction of the guide cylinder 2 in conjunction with the plate-shaped moving body 3.

[0020] Here, the longitudinal direction of the guide cylinder 2 is defined as the front-rear direction X, the side where the fishhook holding groove 21 of the guide cylinder 2 is provided is defined as the front side X1 (front side, one end side), and the other end where the handle portion 4 is provided is defined as the rear side X2 (rear side, the other end side). The guide cylinder 2 is formed in a cylindrical shape with a circular cross section, and the central axes of the guide cylinder 2 and the plate-shaped moving body 3 are arranged on the same axis. Hereinafter, this common axis is referred to as the cylinder axis O, and the front-rear direction X is along the cylinder axis O direction. In a plan view of the fishhook remover 1 viewed from the cylinder axis O direction, the direction perpendicular to the cylinder axis O is referred to as the radial direction, and the direction of orbiting around the cylinder axis O is referred to as the circumferential direction.

[0021] As shown in Figure 2, the guide tube 2 is a long, hollow, rod-shaped tube in the front-to-back direction X. The front end portion of the guide tube 2 is detachably provided in the front-to-back direction X. The guide tube 2 comprises a cylindrical front end member 22 with a pair of fishhook holding grooves 21 formed at radially opposing positions in a side view at its front end, and a cylindrical main body member 23 extending along the cylindrical axis O from the rear of the front end member 22 to the handle portion 4. A male thread 23a is formed at the front end of the main body member 23. A female thread 22a is formed at the rear end of the front end member 22. The front end member 22 is fixed to the main body member 23 by tightening the female thread 22a into the male thread 23a.

[0022] The handle portion 4 is fixed to the rear end of the guide tube 2 by a fixing screw 41. The handle portion 4 is a grip that protrudes radially outward from the outer surface of the guide tube 2 perpendicular to the cylinder axis O, and is the part that is gripped when removing the fishhook 100. The handle portion 4 is restricted from moving in the front-rear direction X and rotating in the circumferential direction relative to the guide tube 2. The rear end 322a of a spring member 322, which will be described later, is connected to the fixing screw 41. In addition, cover members 42 are attached to both radial ends of the handle portion 4.

[0023] As shown in Figures 3 to 5, the front end of the front end member 22 has a conical portion 22b that tapers toward the opening 2a, and inclined surfaces 22c that are cut out of the conical portion 22b on both sides of the plate surface of the plate-shaped movable body 3 and inclined toward the plate-shaped movable body 3. A fishhook holding groove 21 is arranged on the front end side of the inclined surface 22c. Inside the front end of the front end of the front end member 22, a passage portion 24 is formed that extends in the front-rear direction X and communicates with the opening 2a. The opening cross-section of the passage portion 24 matches the cross-sectional shape of the plate-shaped movable body 3 and supports the plate-shaped movable body 3 so that it can slide in the front-rear direction X.

[0024] The pair of opposing fishhook holding grooves 21 formed at the front end of the front end member 22 are cut out from the opening 2a to the rear and are formed in a V-shape where the groove width narrows from front to rear at the bottom of the groove. The fishhook holding grooves 21 hold the fishhook 100 that is locked by the fishhook locking portion 31 of the plate-shaped movable body 3.

[0025] As shown in Figures 4 and 6(a), the hook-holding groove 21 is for holding the hook 100, particularly the curved portion 100a or the body portion 100b. As shown in Figure 6(b), when in use, by moving the plate-shaped movable body 3 backward relative to the front end member 22 while the portion of the hook 100 is locked against the hook-locking portion 31 of the plate-shaped movable body 3, the portion of the hook 100 that is pressed against the front end member 22 is held between the hook-holding groove 21 and the front end member 22. The hook 100, which is held between the hook-locking portion 31 and the pair of hook-holding grooves 21, is then held from the front-rear direction X by the hook-locking portion 31 of the plate-shaped movable body 3 and the groove bottom of the hook-holding groove 21 by moving the plate-shaped movable body 3 backward relative to the guide cylinder 2 (hereinafter sometimes simply referred to as "retracting").

[0026] Near the rear end of the main body member 23, a pair of elongated holes 23b, which are long in the front-to-back direction X, are provided for attaching the lever portion 5 to the plate-shaped movable body 3. The length of these elongated holes 23b in the front-to-back direction X limits the range in which the plate-shaped movable body 3 can move relative to the guide cylinder 2 in the front-to-back direction X.

[0027] As shown in Figure 2, the plate-shaped movable body 3 is inserted into the guide cylinder 2 and fixed to the front end 32a of the shaft portion 32, which is elongated in the front-rear direction X. That is, the plate-shaped movable body 3 is provided extending forward from the front end 32a of the shaft portion 32. The shaft portion 32 has a square cross-section. The rear end 32b of the shaft portion 32 is connected to a lever portion 5 attached to the outer circumference of the guide cylinder 2 by a connecting shaft member 51. The shaft portion 32 is provided with a through hole 32c through which the connecting shaft member 51 can be inserted, extending in a direction perpendicular to the longitudinal direction of the shaft portion 32. The plate-shaped movable body 3 is integrated with the lever portion 5 by the connecting shaft member 51 being inserted into a pair of elongated holes 23b in the guide cylinder 2 and also through the through hole 32c in the shaft portion 32.

[0028] The lever portion 5 comprises a connecting shaft member 51 inserted into the elongated hole 23b of the guide cylinder 2, and a lever body 52 that protrudes outward in the radial direction of the guide cylinder 2 and in the same direction as the longitudinal direction of the handle portion 4. The lever portion 5 is connected to the shaft portion 32 of the plate-shaped movable body 3 by the connecting shaft member 51, and by gripping the lever body 52 and moving it back and forth, the lever portion 5 and the plate-shaped movable body 3 can be moved relative to the guide cylinder 2 in the front-rear direction X.

[0029] The plate-shaped movable body 3 is biased forward X1 by a spring member 322 provided at the rear end 32b of the shaft portion 32. That is, the integrated plate-shaped movable body 3 and lever portion 5 can move in the front-rear direction X within a predetermined range relative to the guide cylinder 2, but unless a force is applied to move them to the rear X2, the elastic force of the spring member 322 causes the connecting shaft member 51 to be positioned at the front end of the elongated hole 23b, and the plate-shaped movable body 3 and lever portion 5 are also positioned at the front end of their movable range.

[0030] The plate-shaped movable body 3 and the lever portion 5 move backward X2 when a force is applied that opposes the elastic force of the spring member 322. When this force is released, the plate-shaped movable body 3 and the lever portion 5 return to their front end position due to the elastic force of the spring member 322.

[0031] As shown in Figures 3, 5, and 6, the plate-shaped movable body 3 is a long, rectangular metal plate made of stainless steel. The front end of the plate-shaped movable body 3 has a hook portion 33 that is bent into a hook shape. The hook portion 33 has an opening 3a formed by the missing portion on one side. The hook portion 33 includes a hook locking portion 31 formed by a bent portion that becomes the front end X1, and a relief passage portion 34 connected to the hook locking portion 31 and extending from the hook locking portion 31 toward the opening 3a.

[0032] The opening 3a is a space for the fishhook 100 to pass through the passage 34 and be locked into the fishhook locking portion 31 (see Figure 7). The fishhook locking portion 31 is capable of locking the fishhook 100 and penetrates in the thickness direction of the plate-shaped movable body 3.

[0033] The hook locking portion 31 is the part where the plate-shaped movable body 3 is placed against the hook 100 and locks it in place by contacting it from the front X1. When the plate-shaped movable body 3 is moved backward relative to the guide cylinder 2 (hereinafter sometimes simply referred to as "retraction"), the hook locking portion 31 holds the hook 100 between the hook locking portion 31 and the hook holding groove 21 of the front end member 22 of the guide cylinder 2, thereby restricting the retraction of the plate-shaped movable body 3. Furthermore, if the fishhook 100 is not locked in the fishhook locking portion 31, the fishhook locking portion 31 will not be held in the fishhook holding groove 21, and the plate-shaped movable body 3 will be able to retract within the guide cylinder 2.

[0034] The relief passage section 34 gradually decreases in distance from the side surface 3b of the plate-shaped moving body 3 as it moves from the front side X1 to the rear side X2, and has a relief surface 34a that communicates with the side surface 3b of the plate-shaped moving body 3. The relief surface 34a is connected to the hook locking section 31. The inclination angle θ of the relief surface 34a is in the range of 30 to 50 degrees with respect to the cylindrical axis O in the front-rear direction X.

[0035] As shown in Figure 7, when a torsional load that rotates circumferentially acts on the plate-shaped moving body 3 while the fishhook 100 is locked in the fishhook locking part 31, the fishhook 100 will attempt to move toward the opening 3a along the inclined surface of the relief surface 34a (in the direction of arrow E in Figure 7). That is, a force F2 (see Figure 3) is generated in the direction that causes the fishhook 100 to move toward the opening 3a along the relief surface 34a. Note that this force F2 is, fishhook This occurs when 100 is subjected to a torsional load while in contact with the inclined relief surface 34a and the opposite contact surface 33a (the inner surface of the hook portion 33 that extends from the hook locking portion 31 in the rear direction X2) on the opposite side of the hook locking portion 31.

[0036] Then, as shown in Figure 3, when the aforementioned F2×cosθ exceeds the tensile force F1 that pulls the fishhook 100 toward the front X1 due to the weight of the fish or the pull of a person (F2×cosθ>F1), the fishhook 100 moves along the relief surface 34a. In other words, until the twist in the plate-shaped moving body 3 becomes F2×cosθ=F1, the movement of the fishhook 100 is restricted by friction with the relief surface 34a and it is held in the fishhook locking part 31. When F2×cosθ>F1, the force on the fishhook 100 to move along the relief surface 34a becomes greater than the frictional force, causing it to move along the relief surface 34a and the fishhook 100 to come out of the opening 3a.

[0037] Next, the method of using the fishhook remover 1 configured in this way will be explained in detail with reference to the drawings. As shown in Figures 2 and 3, the hook locking portion 31 of the plate-shaped movable body 3 is applied to and locked to the curved portion 100a or the body portion 100b of the hook 100 that has been caught in a fish. At this time, the hook 100 itself may be locked into the hook portion 33 through the opening 3a of the plate-shaped movable body 3, or the hook locking portion 31 may be applied to the leader first, and then the hook portion 33 may be moved toward the hook 100 while being guided by the leader. This makes it possible to easily apply the hook locking portion 31 to the hook 100 even if, for example, the hook 100 has been swallowed and is caught deep in the mouth of the fish, making it difficult to confirm the position of the hook 100.

[0038] As shown in Figures 2 and 6(a) and (b), with the hook 100 locked to the hook locking part 31, the operator grasps the handle part 4 and the lever part 5 and moves the lever part 5 backward relative to the handle part 4. This causes the hook part 33 of the plate-shaped movable body 3 to move backward X2 in conjunction, and the applied hook 100 is gripped between the hook locking part 31 of the plate-shaped movable body 3 and the hook holding groove 21 of the front end member 22 of the guide cylinder 2. Then, by the operator rotating and twisting the hook remover 1 in the circumferential direction, the hook 100 can be forcibly rotated and pulled out from the fish or the like.

[0039] Before the fishhook 100 is held, that is, when it is only locked in the fishhook locking portion 31 and not clamped in the fishhook holding groove 21, if the torsional load acting on the fishhook remover 1 is below a predetermined level, the fishhook 100 will remain locked in the fishhook locking portion 31 due to friction with the relief surface 34a. On the other hand, if the torsional load acting on the fishhook remover 1 exceeds a predetermined angle, the fishhook 100 will slide along the relief surface 34a, pass through the relief passage portion 34, and come out of the opening 3a. Therefore, when a large torsional load acts on the plate-shaped moving body 3, the fishhook 100 will come out, and a large load will not be placed on the plate-shaped moving body 3, thus suppressing plastic deformation of the plate-shaped moving body 3.

[0040] After the fishing hook 100 is removed from the fish or other body, the lever portion 5 is released, and the plate-shaped movable body 3 returns to its front end due to the biasing force of the spring member 322, releasing the fishing hook 100 from the fishing hook holding groove 21.

[0041] Next, the operation of the fishhook remover 1, which is configured in this way, will be explained in detail with reference to Figures 1 to 7. The hook remover 1 according to this embodiment includes a guide cylinder 2 having an opening and a hook holding groove 21 at its front end, and a plate-shaped movable body 3 that protrudes from the opening toward the front end X1 of the guide cylinder 2, is mounted so as to be movable in the front-rear direction X, and has a hook locking portion 31 at its protruding tip that locks the hook 100 into the hook holding groove 21 when it moves toward the rear end X2 of the guide cylinder 2. The hook locking portion 31 is capable of locking the hook 100 and penetrates through the plate-shaped movable body 3 in the thickness direction. The plate-shaped movable body 3 has a relief passage portion 34 connected to the hook locking portion 31. The relief passage portion 34 gradually decreases in dimension from the side of the plate-shaped movable body 3 as it moves from front to rear, and has a relief surface 34a that communicates with the side of the plate-shaped movable body 3.

[0042] As a result, in this embodiment, when removing the fishing hook 100 from the fish, while the fishing hook 100 is locked to the fishing hook locking portion 31 of the plate-shaped moving body 3, a tensile force (a force in the direction that moves the plate-shaped moving body 3 forward) is applied to the plate-shaped moving body 3 by the fishing hook 100, and a large torsional load is applied in the direction that rotates around the cylindrical axis O. Due to this load, the fishing hook 100 is pushed between the contact surface of the fishing hook 100 and the fishing hook locking portion 31 and the relief surface 34a formed in the relief passage portion 34. along A force acts to move the fishhook 100, but the frictional force with the relief surface 34a prevents it from moving. On the other hand, when the torsional load increases further and the force attempting to move the fishhook 100 along the relief surface 34a exceeds the frictional force with the relief surface 34a, the fishhook 100 moves along the relief surface 34a and slips out of the fishhook locking portion 31 onto the side of the plate-shaped moving body 3.

[0043] To explain in more detail, the hook 100 is ultimately held in the hook retaining groove 21 provided in the guide tube 2 while remaining locked in the hook locking part 31, and is fixed in both the front-to-back direction X and the circumferential direction. In this state, the hook remover 1 can be twisted to detach the hook point of the hook 100 from the fish, thereby removing the hook 100. At this time, the plate-shaped moving body 3 is housed in the passage part 24 inside the guide tube 2, and the hook 100 is also engaged in the hook retaining groove 21, so the plate-shaped moving body 3 will not deform even if a torsional load is applied.

[0044] Thus, in this embodiment, when a torsional load is applied to the plate-shaped moving body 3, the fishhook 100, which is locked by the fishhook locking part 31, can be released from the plate-shaped moving body 3. Therefore, even if the torsional load on the hook remover 1 increases while the hook 100 is locked in the hook locking part 31, plastic deformation of the plate-shaped moving body 3 can be prevented, and the problem of the plate-shaped moving body 3 becoming unable to move relative to the guide cylinder 2 can be suppressed.

[0045] In this embodiment, the relief surface 34a is connected to the hook locking portion 31. In this case, when a twisting force acts on the plate-shaped moving body 3, the fishhook 100 is positioned at the fishhook locking portion 31, and a relief surface 34a is provided so as to connect to this fishhook locking portion 31. Therefore, depending on the magnitude of the frictional force, the fishhook 100 can be smoothly moved along the relief surface 34a outward from the fishhook locking portion 31 and released.

[0046] Furthermore, in this embodiment, the plate-shaped moving body 3 is a stainless steel metal plate, and the inclination angle θ of the relief surface 34a is in the range of 30 to 50 degrees with respect to the longitudinal axis.

[0047] Therefore, in this embodiment, under small torsional loads, sufficient frictional force is ensured between the fishing hook 100 and the relief surface 34a, preventing it from moving and making it difficult to detach from the fishing hook locking part 31. However, when a large torsional load is applied to the fishing hook remover 1, the fishing hook 100 moves along the relief surface 34a, exceeding the frictional force with the relief surface 34a, detaching from the fishing hook locking part 31 and removing from the fishing hook remover 1. If the inclination angle of the relief surface 34a is less than 30 degrees, even if a predetermined large torsional load is applied, the frictional force with the relief surface 34a becomes large, and the fishing hook 100 may not move along the relief surface 34a, potentially causing plastic deformation of the plate-shaped moving body 3. Furthermore, if the inclination angle θ of the relief surface 34a exceeds 50 degrees, sufficient frictional force between the fishing hook 100 and the relief surface 34a cannot be ensured, and the fishing hook 100 may detach even under small torsional loads. This angle may be close to 30° if the coefficient of friction between the fishhook 100 and the fishhook locking portion 31 is reduced by surface treatment, etc., and may be close to 50° if the surface roughness and coefficient of friction are increased by treatment such as sandblasting. If no surface treatment is applied, 35° to 45° is preferable.

[0048] In this embodiment, one end of the guide cylinder 2 is provided with a conical portion 22b that tapers toward the opening 2a, and inclined surfaces 22c that are cut out of the conical portion 22b on both sides of the plate surface of the plate-shaped moving body 3 and inclined toward the plate-shaped moving body 3, and a fishhook holding groove 21 is arranged on one end of the inclined surface 22c.

[0049] Therefore, in this embodiment, the front end of the guide tube 2 is conical in shape and has an inclined surface 22c, making it easy to insert into the mouth of a fish and allowing the hook locking portion 31 of the plate-shaped moving body 3 to reach the hook 100 that has caught in the fish with high precision. Furthermore, in this embodiment, since inclined surfaces 22c are formed on both sides of the guide cylinder 2 that sandwich the plate-shaped moving body 3, the opening shape at the front end of the guide cylinder 2 can be formed into a rectangular shape that is the same as the cross-sectional shape of the plate-shaped moving body 3. Therefore, the plate-shaped moving body 3 can be guided by the guide cylinder 2 in a stable position and moved in the front-rear direction X without being rotated.

[0050] As described above, the fishhook remover 1 according to this embodiment maintains ease of processing and manufacturing while preventing deformation of the moving parts and ensuring good operability.

[0051] Although embodiments of the present invention have been described above, these embodiments are presented as examples and are not intended to limit the scope of the invention. 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. Embodiments and their modifications include, for example, those that can be easily imagined by those skilled in the art, those that are substantially the same, and those that are equivalent.

[0052] For example, in the above embodiment, the relief surface 34a is not limited to being connected to the hook locking portion 31.

[0053] Furthermore, in this embodiment, the plate-shaped moving body 3 is made of a stainless steel metal plate, but it may be made of another metal. In this embodiment, when the plate-shaped moving body 3 is made of stainless steel, the inclination angle θ of the relief surface 34a is set to a range of 35 to 45 degrees with respect to the longitudinal axis, but when the plate-shaped moving body 3 is made of another metal, the inclination angle θ of the relief surface 34a should be set according to the properties of that metal (such as the coefficient of friction).

[0054] Furthermore, in this embodiment, the guide cylinder 2 is provided with a conical portion 22b that tapers toward the opening 2a at one end, and inclined surfaces 22c that are cut out from the conical portion 22b on both sides of the plate surface of the plate-shaped moving body 3 and inclined toward the plate-shaped moving body 3, with a fishhook holding groove 21 positioned on one end of the inclined surface 22c. However, the guide cylinder 2 may also have a shape in which such a conical portion 22b and inclined surfaces 22c are not formed. Also, in this embodiment, the guide cylinder 2 is divided into two parts, a front end member 22 and a main body member 23, but it may also be a single, undivided guide cylinder. [Explanation of symbols]

[0055] 1… Fishing hook remover 2… Guide tube 2a…Aperture 3…Plate-shaped moving body 3b...side 4…Handle section 5...Lever part 21...Fishhook holding groove 22…Front end member 22b...Conical section 22c…Slanted surface 23…Main body components 31... Fishing hook locking part 33... Hook part 34... Escape passage section 34a...Relief side 100...Fish hook X...front-to-back direction (longitudinal direction)

Claims

1. A hook remover for removing a fish hook from a fish that has been caught on the hook, A guide tube having a cylindrical opening and a fishhook holding groove at one end in the longitudinal direction, The device comprises a plate-shaped movable body that protrudes from the opening of the guide cylinder in one of the first directions along the longitudinal direction, is mounted to be movable in the first direction, and has a hook-locking portion at its protruding tip that locks the hook in the hook-holding groove when it moves in the other direction of the first direction, The aforementioned hook locking portion is capable of locking the hook and penetrates in a second direction that forms the thickness direction of the plate-shaped moving body, The plate-shaped moving body has a relief passage that is connected to the hook locking portion, The aforementioned relief passage extends from the hook locking portion toward the side edge in the shorter direction of the plate-shaped moving body when viewed from the second direction, and is provided with an opening at the side edge. A hook remover having a relief passage portion that, at a position facing the cylindrical opening in the first direction, has a relief surface that, when viewed from the second direction, gradually approaches the other side in the first direction as it moves from the hook locking portion toward the side edge portion.

2. The aforementioned relief surface is connected to the hook locking portion, as described in claim 1, for the hook remover.

3. The aforementioned plate-shaped moving body is a stainless steel metal plate, The hook remover according to claim 1 or 2, wherein the inclination angle of the relief surface is in the range of 30 to 50 degrees with respect to the longitudinal axis.

4. One end of the guide tube has a conical shape that tapers toward the opening of the tube, On both sides of the plate surface of the plate-shaped moving body, the conical portion is cut out and inclined surfaces are provided that slope toward the plate-shaped moving body. The fishhook remover according to claim 1 or 2, wherein the fishhook retaining groove is arranged on one end of the inclined surface.

Images