Fishing tackle

Abstract

To provide fishing tackle that can more reliably inform a user of the state of the tackle with a simple configuration.SOLUTION: The fishing tackle comprises: an elastic body; a sensor attached to the body and having electrical characteristics changing upon deformation; a control circuit attached to the body; and notification means attached to the body and having a first state and a second state different from the first state. The control circuit switches between the first state and the second state based on an output signal.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to fishing tackle used for fishing. [Background technology]

[0002] Conventionally, fishing tackle such as artificial baits called egi (fishing jigs) or sinkers called underwater floats have been widely used in fishing. The fishing tackle described in Patent Document 1 includes an LED, a motion sensor, a control circuit, and a battery. The motion sensor detects the movement of the fishing rod used to pull the tackle and the movement of the target when it becomes hooked and struggles. The control circuit controls the light emission state of the LED in response to the detection signal from the motion sensor. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2002-171883 Summary of the Invention [Problem to be solved by the invention]

[0004] A motion sensor is a sensor that detects movement. If an acceleration sensor, for example, is used as the motion sensor, there is a risk that the movement of the fishing rod may not be detected if the change in acceleration is small. An example of a case where the change in acceleration is small is when the squid jig hits the bottom in squid fishing. If an acceleration sensor is used as the motion sensor, the LED may not light up even when the squid jig hits the bottom, and the angler (user) may not be notified that the squid jig has hit the bottom.

[0005] Furthermore, if a vibration gyro sensor, for example, is used as the motion sensor, there is a risk that it may not be able to keep up with the quick movements of the fishing gear. An example of a fishing gear moving quickly is when a squid grabs an egi. When the squid grabs the egi and gets caught on the hook, the egi is shaken violently by the squid. As the squid shakes the egi, the egi vibrates violently many times in a short period of time. If a vibration gyro sensor is used as the motion sensor, there is a risk that the LED will not light up even if the squid grabs the egi, and the user will not be notified that the squid has grabbed the egi.

[0006] Furthermore, if the fishing tackle described in Patent Document 1 employs both an acceleration sensor and a vibration gyro sensor, the fishing tackle may become larger in size and have a more complex structure.

[0007] SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a fishing tackle that has a simple configuration and can more reliably notify the user of the state of the fishing tackle. [Means for solving the problem]

[0008] A fishing tackle according to one embodiment of the present invention comprises: a resilient body; a sensor attached to the main body, the electrical characteristics of which change with deformation; a control circuit attached to the main body; a notification means attached to the main body and having a first state and a second state different from the first state; It is equipped with The control circuit switches between the first state and the second state based on the output signal of the sensor. [Effects of the Invention]

[0009] According to the present invention, the state of fishing gear can be more reliably notified to the user with a simple configuration. [Brief explanation of the drawings]

[0010] [Figure 1] FIG. 1 is a side view of the squid jig 1. [Figure 2] 2(A) is a perspective view of the sensor 6. FIG. 2(B) is an exploded perspective view of the sensor 6. [Figure 3] FIG. 3 is a block diagram of the sensor 6, the circuit board 7 and the battery 8. [Figure 4] FIG. 4 is a flowchart showing an example of how to use the squid jig 1. [Figure 5] FIG. 5 is a side view of the underwater float 1a. [Figure 6] FIG. 6 is a flowchart showing an example of a method for using the underwater float 1a. DETAILED DESCRIPTION OF THE INVENTION

[0011] [First embodiment] An egi 1 according to a first embodiment of the present invention will be described below with reference to the drawings. Fig. 1 is a side view of the egi 1. Note that wiring between the sensor 6, the circuit board 7, and the battery 8 is omitted in Fig. 1. Fig. 2(A) is a perspective view of the sensor 6. Fig. 2(B) is an exploded perspective view of the sensor 6. Fig. 3 is a block diagram of the sensor 6, the circuit board 7, and the battery 8.

[0012] An egi is an artificial lure used in squid fishing or octopus fishing. For example, in squid fishing, a fisherman (user) swings an egi 1 attached to a fishing line in the water to attract squid, and then catches the squid by grabbing the egi 1 and hooking it on a hook. The egi 1 is an example of a fishing tackle according to the present invention.

[0013] The squid jig 1 includes a main body 2, an eye 3, a sinker 4, a hook 5, a sensor 6, a circuit board 7, and a battery 8. The main body 2 is elastic. The main body 2 is made of a plastic material such as ABS resin, or wood. The appearance of the main body 2 imitates a creature that squids prefer to prey on. As shown in FIG. 1 , in this embodiment, the main body 2 imitates a shrimp. The main body 2 has an elongated shape extending from a front end 21 to a rear end 22. In this embodiment, the main body 2 has high transparency and is transparent or translucent. The main body 2 may be colorless or colored. The main body 2 also includes a sealed hollow portion 23. That is, an air gap is formed inside the main body 2. The appearance of the main body 2 does not have to imitate a shrimp. The main body 2 does not have to have an elongated shape extending from the front end 21 to the rear end 22.

[0014] In this specification, directions are defined as follows, by way of example. As shown in FIG. 1 , the vertically upward direction is defined as the upward direction DIRU, and the vertically downward direction is defined as the downward direction DIRD. The direction perpendicular to the upward direction DIRU and in which the front end portion 21 faces is defined as the forward direction DIRF. The direction perpendicular to the upward direction DIRU and in which the rear end portion 22 faces is defined as the rearward direction DIRB. The horizontal direction, that is, the left direction when facing the forward direction DIRF, is defined as the left direction DIRL. The horizontal direction, that is, the right direction when facing the forward direction DIRF, is defined as the right direction DIRR. The upward direction DIRU, downward direction DIRD, forward direction DIRF, rearward direction DIRB, left direction DIRL, and right direction DIRR are perpendicular to one another. However, the upward direction DIRU, downward direction DIRD, forward direction DIRF, rearward direction DIRB, left direction DIRL, and right direction DIRR in this specification are defined as directions for the convenience of explanation and do not limit the structure of the fishing tackle according to the present invention.

[0015] The eye 3 is fixed to the main body 2 so as to protrude in the forward direction DIRF from the front end 21 of the main body 2. The eye 3 is ring-shaped. The eye 3 is made of a metal material such as stainless steel. A fishing line supplied from a reel of a fishing rod is connected to the eye 3. For example, the fishing line is connected to the eye 3 via a metal fitting attached to the end of the fishing line.

[0016] The weight 4 is detachably attached to the main body 2 at the front lower part of the main body 2 so as to protrude downward from the main body 2. The weight 4 is made of a metal material such as lead. Since the weight 4 is provided at the front lower part of the main body 2, the center of gravity of the squid lure 1 is located at the front lower part of the main body 2.

[0017] The cap needle 5 is fixed to the rear end portion 22 of the main body 2. The cap needle 5 includes a plurality of needles 51 arranged radially. The tip of each of the plurality of needles 51 faces in the forward direction DIRF.

[0018] The sensor 6, the circuit board 7, and the battery 8 are each housed in the hollow portion 23 of the main body 2. More specifically, the sensor 6, the circuit board 7, and the battery 8 are each attached to the inner circumferential surface of the main body 2. Note that if the sensor 6, the circuit board 7, and the battery 8 each have high waterproof performance, the sensor 6, the circuit board 7, and the battery 8 do not need to be housed in the hollow portion 23 of the main body 2. In this case, the main body 2 does not need to have a gap inside. Also, if the circuit board 7 is not housed in the hollow portion 23 of the main body 2, the main body 2 does not need to be permeable. Also, since the sensor 6, the circuit board 7, and the battery 8 each have high waterproof performance, the hollow portion 23 of the main body 2 does not need to be sealed. In other words, the sensor 6, the circuit board 7, and the battery 8 may each be attached to the outer circumferential surface of the main body 2. Also, the sensor 6, the circuit board 7, and the battery 8 do not need to contact the inner circumferential surface of the main body 2.

[0019] The sensor 6 is flexible and has a flat membrane shape. The sensor 6 is attached to the front part of the inner circumferential surface of the main body 2. As shown in FIG. 2(A), the sensor 6 has a piezoelectric film 6a, a first electrode 6b, and a second electrode 6c.

[0020] The piezoelectric film 6a is flexible. The piezoelectric film 6a is flat. As shown in FIG. 2(B), the piezoelectric film 6a has an upper principal surface US6a and a lower principal surface DS6a arranged in this order along the downward direction DIRD. The lower principal surface DS6a faces the upper principal surface US6a. The upper principal surface US6a and the lower principal surface DS6a are rectangular, each having a front edge and a rear edge extending in the left-right direction and a left edge and a right edge extending in the front-rear direction. The shape and arrangement of the piezoelectric film according to the present invention are not limited to those of the piezoelectric film 6a.

[0021] The piezoelectric film 6a is polarized by deformation, generating a potential difference between the upper principal surface US6a and the lower principal surface DS6a. That is, the electrical characteristics of the sensor 6 change due to deformation. The potential difference generated between the upper principal surface US6a and the lower principal surface DS6a corresponds to the amount of deformation of the piezoelectric film 6a.

[0022] The piezoelectric film 6a is, for example, a film formed from a chiral polymer. Chiral polymers include, for example, polylactic acid (PLA), such as poly(L-lactic acid) (PLLA) and poly(D-lactic acid) (PDLA). PLA has a helical structure in its main chain. PLA exhibits piezoelectricity when its molecules are oriented by uniaxial stretching. The piezoelectric film 6a has a piezoelectric constant of d14. Furthermore, since PLA is non-pyroelectric, its polarization does not change even when the temperature changes. Therefore, the potential difference generated between the upper principal surface US6a and the lower principal surface DS6a does not change even when the temperature changes.

[0023] The PLA is stretched at least in a uniaxial stretching direction OD. The uniaxial stretching direction OD of the PLA forms an angle of 45 degrees with respect to each of the left-right direction and the front-back direction. Note that the 45 degrees may be within a range of approximately 45 degrees ±10 degrees. When the piezoelectric film 6a is stretched or compressed along the left-right direction, a potential difference is generated between the upper principal surface US6a and the lower principal surface DS6a. Similarly, when the piezoelectric film 6a is stretched or compressed along the front-back direction, a potential difference is generated between the upper principal surface US6a and the lower principal surface DS6a. In this embodiment, the magnitude of the potential difference generated between the upper principal surface US6a and the lower principal surface DS6a is proportional to the differential value of the deformation amount of the piezoelectric film 6a. Note that the uniaxial stretching direction OD of the PLA may form an angle of 0 degrees with respect to the left-right direction or the front-back direction. In this case, the 0 degrees may be within a range of approximately 0 degrees ±10 degrees.

[0024] The first electrode 6b is flexible and conductive. The material of the first electrode 6b is, for example, copper. The first electrode 6b is in the form of a flat film. The first electrode 6b is provided on the lower main surface DS6a. In this embodiment, the first electrode 6b covers the entire lower main surface DS6a. The first electrode 6b functions as a signal electrode for outputting the potential difference generated by the piezoelectric film 6a as an electric charge Q. The electric charge Q corresponds to the output signal according to the present invention. Note that the shape and arrangement of the first electrode 6b are not limited to those shown in this embodiment. Furthermore, the output signal according to the present invention is not limited to the electric charge Q, and may be a voltage, a current, or the like.

[0025] The second electrode 6c is flexible and conductive. The material of the second electrode 6c is, for example, copper. The second electrode 6c is in the form of a flat film. The second electrode 6c is provided on the upper principal surface US6a. In this embodiment, the second electrode 6c covers the entire upper principal surface US6a. The second electrode 6c is connected to a ground potential and functions as a reference electrode and a shield conductor. In this embodiment, the upper principal surface of the second electrode 6c is fixed to the inner circumferential surface of the main body 2 by an adhesive member (not shown). Note that the lower principal surface of the first electrode 6b may also be fixed to the inner circumferential surface of the main body 2 by an adhesive member (not shown). The shape and arrangement of the second electrode 6c are not limited to those shown in this embodiment.

[0026] As shown in Fig. 3, the circuit board 7 has a charge amplifier 7a, a control circuit 7b, a memory 7c, and an LED 7d. The LED 7d is an example of a notification means according to the present invention. The LED 7d has a first state in which it is lit and a second state in which it is turned off. That is, the second state is different from the first state. Note that the turned-off state of the LED 7d may correspond to the first state according to the present invention, and the turned-on state of the LED 7d may correspond to the second state according to the present invention.

[0027] In this embodiment, the LED 7d has three LEDs. Hereinafter, the three LEDs will be referred to as LED 7d1, LED 7d2, and LED 7d3. The LED 7d may have one, two, or four or more LEDs.

[0028] The charge amplifier 7a is electrically connected to the first electrode 6b. The charge amplifier 7a converts the charge Q output by the first electrode 6b into a voltage signal, and amplifies the voltage signal. The charge amplifier 7a outputs the amplified voltage signal SigV.

[0029] The control circuit 7b is electrically connected to the charge amplifier 7a. The control circuit 7b is, for example, an MPU (Micro Processing Unit). The voltage signal SigV output by the charge amplifier 7a is input to the control circuit 7b. The control circuit 7b outputs control signals SigC1 to SigC3 based on the voltage signal SigV and reads a program for controlling the turning on and off of the LED 7d from the memory 7c. The memory 7c has, for example, a ROM (Read Only Memory) and a RAM (Random Access Memory). The control circuit 7b reads the program stored in the ROM into the RAM. As a result, the control circuit 7b outputs the control signals SigC1 to SigC3 based on the voltage signal SigV and performs the process of controlling the turning on and off of the LED 7d.

[0030] The LED 7d is turned on or off based on the control signals SigC1 to SigC3. In other words, the control circuit 7b switches between a state in which the LED 7d is turned on (first state) and a state in which the LED 7d is turned off (second state) based on the charge Q output by the sensor 6.

[0031] LED7d1, LED7d2, and LED7d3 are a plurality of LEDs that emit light of different colors. In this embodiment, LED7d1 is a diode that emits or turns off blue light based on a control signal SigC1. LED7d2 is a diode that emits or turns off green light based on a control signal SigC2. LED7d3 is a diode that emits or turns off red light based on a control signal SigC3. Note that the emitted light colors of LED7d1 to LED7d3 are not limited to these.

[0032] The battery 8 supplies power to the charge amplifier 7a, the control circuit 7b, and the memory 7c. The battery 8 is, for example, a lithium ion battery. However, the battery 8 is not limited to a lithium ion battery.

[0033] An example of how to use the squid jig 1 will be described below with reference to the drawings. In the following, squid fishing in the sea will be assumed, but the use of the squid jig 1 is not limited to squid fishing in the sea. In other words, the use of the fishing gear according to the present invention is not limited to sea fishing, but may also be river fishing. Furthermore, the object to be caught does not have to be squid. Figure 4 is a flowchart showing an example of how to use the squid jig 1.

[0034] The memory 7c has preset thresholds TH1, TH2, TH3, TH4, and TH5 and predetermined times TI1, TI2, TI3, TFP1, TFP2, and TFP3. In this embodiment, the thresholds TH4 and TH5 are greater than the thresholds TH1, TH2, and TH3. The time TFP3 is different from the time TFP1.

[0035] The user activates the control circuit 7b before attaching the squid lure 1 to the fishing line, or between attaching the squid lure 1 to the fishing line and casting the squid lure 1 into the sea (FIG. 4: step S1). Specifically, the user double-tap the top surface US2 of the main body 2. When the user applies force to the main body 2, the piezoelectric film 6a deforms as the main body 2 deforms. Therefore, when the user presses the main body 2, the charge Q output by the sensor 6 changes. When the voltage signal SigV changes from the threshold TH1 to the threshold TH2 multiple times within the time TI1 in response to the change in the charge Q output by the sensor 6, the control circuit 7b activates and then turns on and off the LED 7d1. When the main body 2 emits light as the main body 2 deforms, the user can confirm that the control circuit 7b has been activated.

[0036] After the control circuit 7b is activated, the user selects the color of light emitted by the main unit 2 (FIG. 4: step S2). Specifically, after the control circuit 7b is activated, the user double-tap the top surface US2 of the main unit 2, in the same manner as when the control circuit 7b was activated. When the voltage signal SigV becomes equal to or greater than the threshold TH1 and equal to or less than TH2 multiple times within the time TI1 in accordance with changes in the charge Q output by the sensor 6, the control circuit 7b turns off LED 7d1, turns on LED 7d2, and then turns off LED 7d2. This changes the color of light emitted by the main unit 2 from blue to green. Next, the user double-tap the top surface US2 of the main unit 2. When the voltage signal SigV becomes equal to or greater than the threshold TH1 and equal to or less than TH2 multiple times within the time TI1 in accordance with changes in the charge Q output by the sensor 6, the control circuit 7b turns off LED 7d2, turns on LED 7d3, and then turns off LED 7d2. This changes the color of light emitted by the main unit 2 from green to red. Furthermore, the user double-tap the top surface US2 of the main unit 2. When the voltage signal SigV becomes equal to or greater than the threshold TH1 and equal to or less than the threshold TH2 multiple times within the time TI1 in response to a change in the charge Q output by the sensor 6, the control circuit 7b turns off LED 7d3, turns on LED 7d1, and then turns off LED 7d1. This causes the emitted color of the main unit 2 to change from red to blue and return to blue. In other words, the control circuit 7b changes the LEDs that are turned on based on the charge Q output by the sensor 6. The user can select the emitted color of the main unit 2 depending on the situation.

[0037] Next, the user attaches the squid jig 1 to the fishing line and casts it into the sea. After a while, the squid jig 1 reaches (hits) the seabed (step S3 in Figure 4). Because the center of gravity of the squid jig 1 is located at the front lower part of the main body 2, the front part of the main body 2 hits the bottom before the rear part of the main body 2. When the squid jig 1 hits the bottom, the front part of the main body 2 deforms, and the piezoelectric film 6a deforms in response to the deformation of the front part of the main body 2. The control circuit 7b executes the first operating mode when the voltage signal SigV becomes equal to or greater than the threshold value TH3 in response to a change in the charge Q output by the sensor 6. In the first operating mode, the control circuit 7b lights up the LED 7d1 for the time TFP1. The lighting of the main body 2 for the time TFP1 notifies the user that the squid jig 1 has hit the bottom and the position of the squid jig 1.

[0038] Next, the user performs a jerking motion (FIG. 4: step S4). Specifically, the user gives the rod a swift flick, causing the squid jig 1 to jump high into the sea. This draws the squid's attention to the squid jig 1. As the jerking motion occurs, the main body 2 undergoes a large deformation. As the main body 2 deforms, the piezoelectric film 6a deforms large. When the voltage signal SigV becomes equal to or greater than the threshold value TH4 in accordance with a change in the charge Q output by the sensor 6, the control circuit 7b turns on the LED 7d1 for a period TFP2. By turning on the main body 2 for a period TFP2, the squid's attention is drawn to the squid's attention to the squid jig 1.

[0039] When the squid grabs the squid jig 1 and gets caught on the hook 5, the squid shakes the squid jig 1 violently (FIG. 4: step S5). As the squid shakes the squid jig 1, the main body 2 deforms significantly multiple times in a short period of time. When the voltage signal SigV exceeds the threshold value TH5 multiple times within a time TI3 in response to changes in the charge Q output by the sensor 6, the control circuit 7b executes the second operation mode. In the second operation mode, the control circuit 7b lights the LED 7d1 for a time TFP3. That is, the control circuit 7b changes the operation mode of the LED 7d based on the charge Q output by the sensor 6. The lighting of the main body 2 for a time TFP3 notifies the user that the squid has grabbed the squid jig 1 and the position of the squid jig 1. The user then reeles in the squid (FIG. 4: step S6).

[0040] If the emitted color of the main body 2 is changed in step S2, the LED corresponding to the changed emitted color is turned on in each of steps S3 to S5.

[0041] The squid jig 1 has a simple structure and can more reliably notify the user of its status. More specifically, the sensor 6, whose electrical characteristics change with deformation, is attached to the elastic main body 2. The main body 2 is deformed when the squid jig 1 hits the bottom, jerks, and the squid embraces the squid jig 1. As the main body 2 deforms, the sensor 6 deforms and its electrical characteristics change. This changes the charge Q output by the sensor 6. The control circuit 7b switches between a state in which the LED 7d is lit (first state) and a state in which the LED 7d is off (second state) based on the charge Q output by the sensor 6. The switch between the state in which the LED 7d is lit and the state in which the LED 7d is off allows the user to recognize that the squid jig 1 has hit the bottom or that the squid is embracing the squid jig 1. In other words, the squid jig 1 can notify the user of its status.

[0042] Furthermore, according to the squid jig 1, even if the change in acceleration is small, such as when the squid jig 1 hits the bottom, the main body 2 deforms, and as the main body 2 deforms, the sensor 6 deforms and the electrical characteristics of the sensor 6 change, so that the squid jig 1 can be more reliably detected as it hits the bottom and notified to the user.

[0043] Furthermore, with the squid jig 1, even if the squid jig 1 moves quickly, such as when a squid grabs the squid jig 1, the main body 2 deforms, and as the main body 2 deforms, the sensor 6 deforms and the electrical characteristics of the sensor 6 change, so it is possible to more reliably detect when the squid jig 1 hits the bottom. Furthermore, the sensor 6 can be formed into a flat membrane, which requires a simple configuration. Therefore, with the squid jig 1, it is possible to more reliably detect the state of the squid jig 1 and notify the user with a simple configuration.

[0044] Furthermore, the sensor 6 is in the form of a flat membrane. This allows the sensor 6 to be attached even if the main body 2 has a curved surface. Therefore, according to the squid jig 1, the degree of freedom in the shape of the main body 2 can be improved.

[0045] The sensor 6 also includes a piezoelectric film 6a. The piezoelectric film 6a contains polylactic acid stretched at least in the uniaxial stretching direction OD. Because polylactic acid is non-pyroelectric, its polarization does not change even when the temperature changes. Therefore, even in an environment with a different temperature than on land, such as underwater, the sensor 6 is stably polarized due to deformation, just as it is on land, and generates a potential difference between the upper principal surface US6a and the lower principal surface DS6a. As a result, the squid jig 1 can more reliably detect the state of the squid jig 1 and notify the user.

[0046] Furthermore, the control circuit 7b executes a first operation mode in which the LED 7d1 is illuminated for a time TFP1 when the squid lure 1 hits the bottom (when the voltage signal SigV becomes equal to or greater than the threshold value TH3), and executes a second operation mode in which the LED 7d1 is illuminated for a time TFP3 when the squid grabs the squid lure 1 (when the voltage signal SigV becomes equal to or greater than the threshold value TH5 multiple times within the time TI3). That is, the control circuit 7b changes the operation mode of the LED 7d based on the charge Q output by the sensor 6. In this embodiment, the illumination time of the LED 7d1 in the first operation mode is different from the illumination time of the LED 7d1 in the second operation mode. As a result, when the squid lure 1 hits the bottom, the squid lure 1 notifies the user that the squid lure 1 has hit the bottom and its position, and when the squid grabs the squid lure 1, the squid lure 1 notifies the user that the squid is embracing the squid lure 1 and its position. Therefore, the user can distinguish between the squid jig 1 hitting the bottom and the squid embracing the squid jig 1.

[0047] The control circuit 7b may blink the LED 7d1 in the first operation mode and light the LED 7d1 in the second operation mode, or may light the LED 7d1 in the first operation mode and blink the LED 7d1 in the second operation mode. The control circuit 7b may also blink the LED 7d1 in both the first operation mode and the second operation mode, and the blinking time of the LED 7d1 in the first operation mode may be different from the blinking time of the LED 7d1 in the second operation mode.

[0048] Note that the deformation of the sensor 6 due to the squid's grip on the bottom occurs approximately once, but the deformation of the sensor 6 due to the squid's grip changes intermittently. Therefore, for example, when the voltage signal SigV becomes equal to or greater than the threshold value TH3 in step S3, the LED 7d1 may be turned on, and when the voltage signal SigV becomes equal to or greater than the threshold value TH5 in step S5, the LED 7d1 may be turned on for a moment in step S3 (first operation mode), and the LED 7d1 may flash or remain lit in step S5 (second operation mode). Even in this case, the squid lure 1 can distinguish between the squid's grip on the bottom and the squid's grip on ...

[0049] The light emission colors in steps S3 to S5 may be different from each other. For example, LED 7d1 may be lit in step S3, LED 7d2 may be lit in step S4, and LED 7d3 may be lit in step S5. In this case, the main body 2 will emit blue light when the squid jig 1 hits the bottom (first operation mode), will emit green light when the squid jig 1 is jerking, and will emit red light when the squid is holding the squid jig 1 (second operation mode). Therefore, even in this case, the squid jig 1 can distinguish between the squid jig 1 hitting the bottom and the squid's holding the squid jig 1 and notify the user.

[0050] Furthermore, when the user presses the main body 2, the charge Q output by the sensor 6 changes. This allows the sensor 6 to function as a touch sensor. Therefore, there is no need to provide the main body 2 with a hardware switch such as a power button or a light color selection button. This allows the squid lure 1 to have a simpler structure. Also, the durability of the squid lure 1 can be improved.

[0051] In addition, since the notification means is an LED, the user can be more reliably informed of the state of the squid jig 1 (the position of the squid jig 1, whether the squid jig 1 has hit the bottom, whether the squid is holding the squid jig 1, etc.). Also, when jerking, the squid's gaze can be more easily drawn to the squid jig 1.

[0052] The LED 7d includes LED 7d1, LED 7d2, and LED 7d3, each of which emits light in a different color, and the control circuit 7b changes the LEDs that are lit based on the charge Q output by the sensor 6. This allows the user to change the color of the light emitted by the squid lure 1 without replacing the squid lure 1. Therefore, the squid lure 1 can improve user convenience.

[0053] Note that control circuit 7b does not necessarily have to change the LEDs that are turned on based on the charge Q output by sensor 6. Control circuit 7b may change the light emission states of LEDs 7d1, 7d2, and 7d3 based on the charge Q output by sensor 6. For example, control circuit 7b may turn on all of LEDs 7d1, 7d2, and 7d3 and change the brightness of at least one of LEDs 7d1, 7d2, and 7d3 based on the charge Q output by sensor 6.

[0054] Furthermore, the sensor 6, the control circuit 7b, and the LED 7d are each housed in a sealed hollow portion 23 of the main body 2. Therefore, the sensor 6, the control circuit 7b, and the LED 7d do not need to have high waterproof performance. Furthermore, the appearance of the main body 2 is not marred.

[0055] It is also possible to keep the LED 7d1 lit in step S1, and then turn it off or blink in each of steps S3 to S5.

[0056] [First Modification] An underwater float 1a according to a first modified example of the present invention will be described below with reference to the drawings. Fig. 5 is a side view of the underwater float 1a. Note that wiring between the sensor 6, the circuit board 7, and the battery 8 is omitted in Fig. 5. Only the parts of the underwater float 1a that are different from the squid lure 1 will be described, and the rest will be omitted.

[0057] 5, in this modification, an underwater float 1a includes a main body 2, a sensor 6, a circuit board 7, and a battery 8. The underwater float 1a is an example of a fishing tackle according to the present invention.

[0058] The underwater float 1a is used for fishing for black porgy (black porgy) or black porgy (medina). The underwater float 1a is a sinker with a predetermined weight. The user throws the underwater float 1a attached to the middle of the fishing line 9 into the sea. As a result, the underwater float 1a, having a predetermined weight, naturally sinks to a predetermined depth and drifts around that depth. As a result, the user can sink the artificial bait or live bait attached to the end of the fishing line 9 to the desired position.

[0059] The main body 2 has an egg shape with a fishing line hole 2a. The main body 2 includes an upper main body portion 24 and a lower main body portion 25. The fishing line hole 2a passes through the upper main body portion 24 and the lower main body portion 25 from the upward direction DIRU to the downward direction DIRD. When using the underwater float 1a, a fishing line 9 is passed through the fishing line hole 2a and an underwater float stopper line 10 is tied to the fishing line 9 to prevent unnecessary movement of the underwater float 1a. Note that the main body 2 is not limited to an egg shape with a fishing line hole 2a and may have, for example, a spherical shape with a fishing line hole 2a or an ellipsoid shape with a fishing line hole 2a.

[0060] The upper body portion 24 has elasticity. The upper body portion 24 is made of a plastic material such as ABS resin. In this modification, the upper body portion 24 has high transparency and is transparent or translucent. The upper body portion 24 may be colorless or colored. The upper body portion 24 also includes a sealed hollow portion 23. That is, a space different from the fishing line hole 2a is formed inside the upper body portion 24. In this modification, the sensor 6, the circuit board 7, and the battery 8 are each housed in the hollow portion 23 of the main body 2.

[0061] The lower main body 25 is made of a high-specific-gravity material such as lead, metal, or alloy. This makes the specific gravity of the underwater float 1a greater than that of water, allowing the underwater float 1a to sink in the sea. Note that the entire lower main body 25 does not necessarily have to be made of a high-specific-gravity material; only a part of the lower main body 25 may be made of a high-specific-gravity material.

[0062] An example of a method for using the underwater float 1a will be described below with reference to the drawings. Figure 6 is a flowchart showing an example of a method for using the underwater float 1a. Note that steps S1 and S2 in Figure 6 are the same as steps S1 and S2 in Figure 4, and therefore their description will be omitted.

[0063] After attaching the underwater float 1a to the fishing line 9, the user casts the underwater float 1a into the sea (FIG. 6: step S31). After a while, the underwater float 1a sinks to a predetermined depth and drifts around that depth. When the target bites the artificial bait or live bait, the upper body part 24 deforms, and the deformation of the upper body part 24 deforms the piezoelectric film 6a. The control circuit 7b lights up the LED 7d1 when the voltage signal SigV is equal to or greater than the threshold value TH3. The lighting of the upper body part 24 notifies the user that the target has bitten the artificial bait or live bait.

[0064] In the case of the underwater float 1a as well, the state of the underwater float 1a can be more reliably notified to the user with a simple configuration.

[0065] [Other embodiments] The fishing gear according to the present invention is not limited to the squid lure 1 and the underwater float 1a, and can be modified within the scope of the gist. In addition, the structures of the squid lure 1 and the underwater float 1a may be combined in any manner.

[0066] The fishing tackle according to the present invention is not limited to egi or underwater floats, but may also be artificial baits such as lures or sinkers known as lead weights.

[0067] The sensor according to the present invention is not limited to the sensor 6, but may be any sensor whose electrical characteristics change with deformation. An example of a sensor whose electrical characteristics change with deformation is a strain gauge. The electrical resistance value of a strain gauge changes with deformation. That is, the electrical characteristics of a strain gauge change with deformation.

[0068] The piezoelectric film according to the present invention is not limited to a film formed from a chiral polymer, but may also be a film formed from an organic material such as polyvinylidene fluoride (PVDF) or an inorganic material such as lead zirconate titanate (PZT).

[0069] The first and second states according to the present invention are not limited to a state in which the LED 7d is on and a state in which the LED 7d is off, respectively. For example, the first state may be a state in which the LED 7d is on in a first color, and the second state may be a state in which the LED 7d is on in a second color different from the first color. Furthermore, for example, the control circuit 7b may change the luminance of the LED 7d by PWM (Pulse Width Modulation) control based on the charge Q output by the sensor 6. In this case, the duty ratio of the LED 7d in the first operation mode may be different from the duty ratio of the LED 7d in the second operation mode. For example, by making the duty ratio of the LED 7d in the first operation mode higher than the duty ratio of the LED 7d in the second operation mode, the luminance of the LED 7d in the first operation mode can be made higher than the luminance of the LED 7d in the second operation mode. On the other hand, by setting the duty ratio of the LED 7d in the first operation mode lower than the duty ratio of the LED 7d in the second operation mode, the brightness of the LED 7d in the first operation mode can be set lower than the brightness of the LED 7d in the second operation mode.

[0070] The notification means according to the present invention may be, for example, a sounding means such as a buzzer. Sound, as well as light, propagates through air and water. Therefore, sounding a buzzer in each of steps S3 to S5 can more reliably notify the user of the fishing gear status with a simple configuration. It can also draw the target's attention to the fishing gear, luring the target.

[0071] When the notification means according to the present invention is a sound generating means, the sound generating means has a first state in which it generates sound and a second state in which it does not generate sound. The control circuit 7b switches between a state in which the sound generating means generates sound (first state) and a state in which the sound generating means does not generate sound (second state) based on the charge Q output by the sensor 6. Note that the state in which the sound generating means does not generate sound may correspond to the first state according to the present invention, and the state in which the sound generating means generates sound may correspond to the second state according to the present invention.

[0072] When the notification means according to the present invention is a sound generating means, the first state and the second state according to the present invention are not limited to a state in which the sound generating means is emitting a sound and a state in which the sound generating means is not emitting a sound, respectively. For example, the first state may be a state in which the sound generating means is emitting a sound, and the second state may be a state in which the sound generating means is emitting a sound different from that in the first state.

[0073] The notification means according to the present invention may be, for example, a vibration means such as a vibrator. The vibrator vibrates the water by vibrating, and the water wave motion propagates. Therefore, even if the vibrator is vibrated in each of steps S3 to S5, the user can be more reliably notified of the state of the fishing gear with a simple configuration. Furthermore, the target's gaze can be drawn to the fishing gear, luring the target.

[0074] When the notification means according to the present invention is a vibration means, the vibration means has a first state in which it is vibrating and a second state in which it is not vibrating. The control circuit 7b switches between a state in which the vibration means is vibrating (first state) and a state in which the vibration means is not vibrating (second state) based on the charge Q output by the sensor 6. Note that the state in which the vibration means is not vibrating may correspond to the first state according to the present invention, and the state in which the vibration means is vibrating may correspond to the second state according to the present invention.

[0075] When the notification means according to the present invention is vibration means, the first state and the second state according to the present invention are not limited to a state in which the vibration means is vibrating and a state in which the vibration means is not vibrating, respectively. For example, the first state may be a state in which the vibration means is vibrating, and the second state may be a state in which the vibration means is vibrating in a manner different from that in the first state. For example, the amplitude or frequency of vibration in the second state may be different from the amplitude or frequency of vibration in the first state. [Explanation of symbols]

[0076] 1: Egi 1a: Underwater float 2: Main unit 2a: Fishing line hole 3: Eye 4: Weight 5: Kasa needle 6: Sensor 6a: Piezoelectric film 6b: 1st electrode 6c: 2nd electrode 7: Circuit board 7a: Charge amplifier 7b: Control circuit 7c: Memory 7d, 7d1~7d3: LED 8:Battery 9: Fishing line 10: Underwater float stopper line 21: Front end 22: Rear end 23: Hollow part 24: Upper body 25: Lower body part 51: Needle DIRB: Backward DIRD: Downward DIRF:Forward direction DIRL:Left direction DIRR: Right DIRU:Upward DS6a: Lower main surface Q:Charge SigC1 to SigC3: Control signals SigV: Voltage signal TH1~TH5: Threshold US2:Top surface US6a: Upper main surface

Claims

1. a resilient body; a sensor attached to the main body, the electrical characteristics of which change with deformation; a control circuit attached to the main body; a notification means attached to the main body and having a first state and a second state different from the first state; It is equipped with The control circuit switches between the first state and the second state based on an output signal of the sensor. Fishing gear.

2. The sensor is in the form of a flat membrane.

2. The fishing tackle of claim 1.

3. the sensor includes a piezoelectric film; The piezoelectric film has polylactic acid stretched in at least one axial stretching direction.

3. The fishing tackle of claim 2.

4. The control circuit changes the operation mode of the notification means based on the output signal.

4. A fishing tackle according to any one of claims 1 to 3.

5. The output signal is changed by the user pressing the main body.

4. A fishing tackle according to any one of claims 1 to 3.

6. the notification means is an LED, the first state is a state in which the LED is lit, The second state is a state in which the LED is turned off.

4. A fishing tackle according to any one of claims 1 to 3.

7. The notification means includes a plurality of LEDs each having a different light emission color, The control circuit changes the light emission state of each of the plurality of LEDs based on the output signal.

4. A fishing tackle according to any one of claims 1 to 3.

8. the body includes a sealed hollow portion; The sensor, the control circuit, and the notification means are each housed in the hollow portion.

4. A fishing tackle according to any one of claims 1 to 3.

9. The fishing tackle is an egi.

4. A fishing tackle according to any one of claims 1 to 3.

10. The fishing tackle is an underwater float.

4. A fishing tackle according to any one of claims 1 to 3.

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