Line spooling device, fishing reel, and winch

Abstract

Provided is a line spooling device capable of reducing sliding friction generated during reciprocating motion even when an oscillation mechanism and a torque detection part are used. A line spooling device according to one embodiment of the present invention is configured to comprise: a spool which can be fixed to a fishing rod and is capable of reeling a fishing line around a central shaft that is substantially parallel to the extension direction of the fishing rod; a rotor which has a guide part for guiding the fishing line and is capable of rotating around the spool; an operating part for rotationally operating the guide means; a switching part which performs switching between enabling and disabling of the guiding by the guide part; a reciprocating member which reciprocates in the central shaft direction of the spool in association with rotation of the rotor; and a torque detection part which detects torque generated between the reciprocating member and the spool.

Description

Line winders, fishing reels and winches

[0001] CROSS-REFERENCE This application claims priority to Japanese Patent Application No. 2023-137083 (filed August 25, 2023), the contents of which are incorporated herein by reference in their entirety. The present invention relates to a fishing reel, a fishing line winding device, and a winch capable of detecting tension.

[0002] In fishing reels and other line winding devices, detecting the tension of the line allows for the prevention of line tangles by detecting whether or not the line has frayed, and for efficient fishing by detecting whether or not there is a bite. Various methods have been proposed for detecting the tension of the line.

[0003] For example, Patent Document 1 discloses a line winding device that can be incorporated into a fishing reel, can be made compact, and has a tension detection unit that can measure with high accuracy even when the line is stopped without having to bend the line path.

[0004] JP 2022-169130 A

[0005] Generally, fishing reels are often equipped with an oscillating mechanism that moves the relative positional relationship between the fishing line and the spool back and forth in the axial direction as the fishing line is wound onto the spool, thereby winding the fishing line evenly. However, when an oscillating mechanism is used in such fishing reels, there is a problem in that excessive sliding friction occurs between the support shaft that moves back and forth in the axial direction together with the oscillating mechanism and the torque detector fixed to the fishing reel body.

[0006] The present invention has been made in consideration of the above circumstances, and its object is to provide a fishing reel and winch that can reduce sliding friction that occurs during reciprocating motion even when an oscillating mechanism and a torque detection unit are used. Other objects of the present invention will become apparent by reading this entire specification.

[0007] A line winding device according to one embodiment of the present invention is configured to include a spool that can be fixed to a fishing rod and that can wind fishing line around a central axis that is approximately parallel to the extension direction of the fishing rod, a rotor that has a guide section that guides the fishing line and can rotate around the spool, an operating section that rotates the guiding section, a switching section that switches between guiding enabled and disabled by the guide section, a reciprocating member that moves back and forth in the central axis direction of the spool as the rotor rotates, and a torque detection section that detects the torque generated between the reciprocating member and the spool.

[0008] In a pegging device according to one embodiment of the present invention, the torque detection unit is disposed on the reciprocating member.

[0009] A winding device according to one embodiment of the present invention is configured to include a reel body, a power supply unit fixed to the reel body, and a flexible cable that supplies electricity from the power supply unit to the torque detection unit.

[0010] A fishing reel according to one embodiment of the present invention is any one of the above-described line winding devices.

[0011] A winch according to one embodiment of the present invention is any one of the above-described line winding devices.

[0012] According to the above embodiment, it is possible to provide a line winding device, a fishing reel, and a winch that can reduce sliding friction that occurs during reciprocating motion even when an oscillating mechanism and a torque detection unit are used.

[0013] 1 is a cross-sectional view of a fishing reel 1 according to one embodiment of the present invention. It is a diagram illustrating an oscillating mechanism 7 of a fishing reel 1 according to one embodiment of the present invention. It is a diagram illustrating an embodiment in which a strain gauge is used as a torque detection unit (torque detection means) 8 of a fishing reel 1 according to one embodiment of the present invention. It is a diagram illustrating an embodiment in which a worm shaft system is used in a fishing reel 1 according to one embodiment of the present invention. (a) is a conceptual diagram of the configuration of an oscillating mechanism and a torque sensor according to one embodiment of the present invention when an oscillating member 72 is located in the axially most forward direction, and (b) is a conceptual diagram of the configuration of an oscillating mechanism and a torque sensor according to one embodiment of the present invention when the oscillating member 72 is located in the axially most rearward position. (a) is a conceptual diagram of the configuration of a conventionally known oscillating mechanism and a torque sensor when an oscillating member 192 is located in the axially most forward position, and (b) is a conceptual diagram of the configuration of a conventionally known oscillating mechanism and a torque sensor when the oscillating member 192 is located in the axially most rearward position.

[0014] Hereinafter, an embodiment of a line winding device according to the present invention will be described in detail with reference to the accompanying drawings, taking a fishing reel as an example. Components common to multiple drawings are designated by the same reference numerals throughout the drawings. Please note that the drawings are not necessarily drawn to scale for ease of explanation.

[0015] First, the configuration of a fishing reel 1 according to one embodiment of the present invention will be described with reference to Figure 1. The fishing reel 1 according to one embodiment of the present invention is a type of reel generally known as a spinning reel, spincast reel, or closed face reel, in which the spool does not rotate when releasing or securing the fishing line.

[0016] 1, a fishing reel 1 according to one embodiment of the present invention is comprised of a spool 3 around which a fishing line (not shown) can be wound, a reel body 4, a rotor 5 rotatably supported relative to the reel body 4, an operating unit (for example, a handle, not shown) for operating the rotor 5, an oscillating mechanism 7 that reciprocates in response to the rotation of the rotor, and a torque detection unit (torque detection means) 8 that detects torque. Hereinafter, the direction of the rotational axis of the rotor is defined as the "axial direction," and the direction in which the rotor rotates is defined as the "rotational direction."

[0017] A fishing reel 1 according to one embodiment of the present invention can be fixed to a fishing rod (not shown) via a reel body 4 (main frame). In this case, the central axis of the spool 3 is supported so as to be roughly parallel to the extending direction of the fishing rod (often tilted by about 5 degrees as necessary).

[0018] The spool 3 is formed in a roughly cylindrical shape and is configured so that the fishing line can be wound around its outer periphery. The rotor 5 is supported so that it can rotate around the central axis of the spool 3. A line guide 51 is held by the rotor 5, and when the rotor 5 rotates, the fishing line guided by the line guide 51 rotates around the spool 3. This allows the fishing line 2 to be wound around the spool 3.

[0019] The line guide 51 can be switched between a state in which it can guide the fishing line and a state in which it cannot guide the fishing line by operating it. In the case of a spinning reel, the line guide 51 is held at the end of a bail arm 52 that is rotatably supported on the rotor 5, and the switching between a state in which it can guide the fishing line and a state in which it cannot guide the fishing line is realized by switching the rotational position of the bail arm 52.

[0020] When the bail arm 52 is rotated to the guide side, the fishing line can be guided by the line guide 51, and the fishing line can be wound by rotating the rotor 5. On the other hand, when the bail arm 52 is rotated to the release side, the fishing line can no longer be guided by the line guide 51, and the fishing line can be released in the axial direction when an external force is applied to the fishing line. By switching between these settings, the user can release the fishing line to the desired length.

[0021] A user can rotate the rotor 5 by operating a handle (not shown). A transmission means such as a gear or pulley is provided between the handle (not shown) and the rotor 5 to transmit rotational torque. It is advisable to provide a reverse rotation prevention means such as a ratchet or one-way clutch (not shown) on the handle (not shown) or the rotating shaft of the rotor 5 to prevent unintentional release of the fishing line.

[0022] Next, the oscillation mechanism and torque detection unit of the fishing reel 1 according to one embodiment of the present invention will be described. Like a typical fishing reel, the fishing reel 1 according to one embodiment of the present invention has an oscillation mechanism 7. Figure 2 is a perspective view illustrating the oscillation mechanism 7 of the fishing reel 1 according to one embodiment of the present invention, showing only some of the components.

[0023] The oscillating mechanism 7 is a mechanism that causes the spool 3 to reciprocate in the axial direction in order to wind the fishing line evenly in the axial direction when winding the fishing line onto the spool 3. The oscillating mechanism 7 is composed of a main shaft 71 that supports the spool 3, an oscillating member 72 that reciprocates in the axial direction in response to handle operation, and a conversion mechanism that converts handle rotation into reciprocating motion in the axial direction.

[0024] 2, the conversion mechanism is made up of an oscillating gear 74 that moves in conjunction with a gear 61 provided on the handle (not shown), and an S-shaped cam 73 provided on the oscillating member 72. The main shaft 71 and the oscillating member 72 are each supported on the reel body 4 so as to be movable in the axial direction.

[0025] When a handle (not shown) is rotated, the gear 61 rotates the pinion gear 51 attached to the rotor 5, which in turn rotates the oscillating gear 74. The oscillating gear 74 is provided with a follower pin (not shown) that moves in conjunction with the S-cam 73. The axial position of the S-cam 73 is determined by the follower pin (not shown), and the S-cam 73 performs linear reciprocating motion in the axial direction in accordance with the rotational motion of the gear 61. The main shaft 71 is rotatably supported by the oscillating member 72, and is held integrally in the axial direction.

[0026] The main shaft 71 is also configured to hold the spool 3. As a result, the rotational torque generated in the spool 3 is also generated in the main shaft 71. If necessary, a known drag mechanism may be provided between the spool 3 and the main shaft 71. For example, if a drag mechanism is used, the spool 3 will rotate freely relative to the main shaft 71 when a torque greater than a predetermined value is generated. This prevents tension greater than a predetermined value from being applied to the fishing line, thereby preventing or reducing line breakage. When the generated torque is equal to or less than a predetermined value, the torque generated in the spool 3 is transmitted directly to the main shaft 71.

[0027] The torque acting on the spool 3 is the line tension multiplied by the line's reel diameter. Therefore, if the line's reel diameter is known, the line tension can be calculated by detecting the torque acting on the main shaft 71. The reel diameter of the line on the spool 3 can be measured using a variety of conventionally known methods, including a method using a position sensor to directly measure the distance to the line surface, or a method measuring the rotational speed of the rotor 5 to calculate the change in the reel diameter. Calculating the line tension makes it possible to detect line slack and prevent line tangles, detect excessive line tension and prevent line breakage, detect a fish bite, and automatically determine the fishing action.

[0028] In the fishing reel 1 according to one embodiment of the present invention, a torque detection unit (torque detection means) 8 is held by the oscillating member 72. The torque detection unit 8 can output an electrical signal according to the torque generated between the oscillating member 72 and the main shaft 71. In the fishing reel 1 according to one embodiment of the present invention, the torque detection unit 8 is made up of a position sensor 81, a detected portion 82, a torsion spring 83, a rotating portion 84, a substrate 85, and a cable 86.

[0029] As described above, the main shaft 71 is rotatably supported relative to the oscillating member 72 and held integrally in the axial direction. A detectable portion 82 and a rotating portion 84 are fixed to the main shaft 71. The position sensor 81 is held by the oscillating member 72 and can output a signal corresponding to the relative angle of the main shaft 71 with respect to the oscillating member 72. In the fishing reel 1 according to one embodiment of the present invention, a magnetic sensor such as a Hall element is used as the position sensor 81 to detect the angular position by detecting the magnetic field of the detectable portion 82, which is a permanent magnet fixed to the main shaft 71. The detectable portion 82 is magnetized in the radial direction, so that the magnetic field changes depending on the rotational position. In the fishing reel 1 according to one embodiment of the present invention, the torque detection means 8 is preferably a non-contact type, which can avoid unnecessary sliding resistance and improve the accuracy of torque detection. In addition to the magnetic sensor described above, optical and capacitance types are also possible non-contact position detection means.

[0030] Furthermore, the rotating part 84 is fixed to the main shaft 71 and supported rotatably within a predetermined range (for example, an angular range of 0° to 60°) relative to the oscillating member 72. The torsion spring 83 generates a restoring force in the rotational direction between the main shaft 71 and the oscillating member 72 via the rotating part 84. When rotational torque is generated in the main shaft 71, a predetermined angular position corresponding to the amount of that torque becomes the equilibrium position. Therefore, by detecting this equilibrium position using the position sensor 81, the torque generated between the main shaft 71 and the oscillating member 72 can be calculated.

[0031] Furthermore, when a torque greater than a predetermined value is generated between the main shaft 71 and the oscillating member 72, the rotation of the rotating member 84 is restricted by the oscillating member 72. As a result, although it becomes impossible to detect torque greater than a predetermined value, it is possible to prevent damage to the device and to prevent the detected part 82 from moving to a position outside the detection range of the position sensor 81.

[0032] The circuit board 85 processes the output signal from the position sensor 81. If necessary, it may be equipped with an arithmetic circuit such as a CPU, a storage unit (storage means) such as a memory, a communication unit (communication means), etc., and performs calculations, storage, output, etc. of the information acquired by the position sensor 81. It also receives power from a battery or the like (not shown), and supplies that power to the position sensor 81. For external communication and power supply purposes, it is desirable for the circuit board 85 to be fixed to the reel body 4.

[0033] The cable 86 electrically connects the position sensor 81 and the circuit board 85. Because the circuit board 85 fixed to the reel body 4 and the position sensor 81 held by the oscillating member 72 move relative to each other in the axial direction, it is desirable that the cable 86 be made of a flexible material, and a flexible printed circuit board or a bundle of multiple lead wires is used. It is desirable to use lead wires with a diameter and material that allow them to be easily bent.

[0034] As for the configuration of the torque detection unit 8, other than the method of combining a spring and a position sensor as described above, similar effects can be achieved by any method that detects the torque between the main shaft 71 and the oscillating member 72. For example, the oscillating member 72 and the main shaft 71 may be connected in the rotational direction, and a strain gauge may be provided on a part of the main shaft 71 or the oscillating member 72. This makes it possible to obtain an electrical signal corresponding to the torque generated between the main shaft 71 and the oscillating member 72.

[0035] In the following description, for convenience, the portion between the main shaft 71 and the oscillating member 72 that receives the torsional torque will be referred to as the torsion member. In an example in which a spring and a position sensor are combined, the torsion spring 83 corresponds to the torsion member, and in an example in which a strain gauge is used, the member to which the strain gauge is attached (a part of the main shaft 71 or the oscillating member 72) corresponds to the torsion member.

[0036] Next, referring to Figure 3, an embodiment of the fishing reel 1 according to the present invention will be described in which a strain gauge is used as the torque detection unit (torque detection means) 8. As shown in Figure 3, the main shaft 71 is axially connected to the oscillating member 172 by being supported by a cantilever 184. When tension is generated in the fishing line 2, the main shaft 71 receives a torsional torque relative to the oscillating member 172. This torque can be detected by the strain gauge 181 provided on the cantilever 184.

[0037] When a strain gauge is used as the torque detection unit (torque detection means) 8 of the fishing reel 1 according to one embodiment of the present invention, a highly rigid torsional member can be used. This allows for a larger torque capacity to be detected. Furthermore, the detection means can have a faster response time. Furthermore, since the detection means is less susceptible to friction, it has less hysteresis and better linearity. On the other hand, compared to the use of a torsion spring and a position sensor, the use of a strain gauge has disadvantages, such as the need to address temperature drift caused by heat generation in the strain gauge itself, high power consumption, and difficulty in addressing plastic deformation that occurs when torque exceeding the rated capacity is applied. Therefore, it is recommended to use the strain gauge appropriately depending on the purpose. In addition to the above-mentioned embodiment, similar effects can be achieved by using a strain gauge directly attached to the main shaft or other methods of detecting torque generated between the oscillating member 172 and the spool 3.

[0038] The oscillation mechanism in the fishing reel 1 according to one embodiment of the present invention is not limited to the above-described embodiment, and other conventionally known oscillation mechanisms may be used. Specifically, the same effect as that of the embodiment of the present invention can be achieved by using a system called a heart cam, which rotates a spiral (heart-shaped) cam in response to rotation of the handle, or a system called a worm shaft system, which is classified as F-term 2B108BH07.

[0039] Next, an embodiment of the fishing reel 1 according to the present invention using a worm shaft system will be described with reference to Figure 4. As shown in Figure 4, the main shaft 71 and the oscillating member 272 are each supported axially movably relative to the reel body (not shown).

[0040] When a handle (not shown) is rotated, the gear 61 rotates the pinion gear 51 attached to the rotor 5. The worm gear 274 engages with the pinion gear 51 and rotates in response to the rotation of the gear 61. A right-handed spiral cam and a left-handed spiral cam are formed successively on the worm gear 274, and a follower 273 provided on the oscillating member 272 is interlocked with these cams. In this way, the axial position of the oscillating member 272 is determined, and the oscillating member 272 performs linear reciprocating motion in the axial direction in accordance with the rotational motion of the gear 61.

[0041] Furthermore, the main shaft 71 is axially connected to the oscillating member 272 by being supported by a cantilever beam 284. When tension is generated in the fishing line, the main shaft 71 receives a torsional torque relative to the oscillating member 272. This torque can be detected by the strain gauge 281 provided on the cantilever beam 284.

[0042] In either method, there is an oscillating member that moves back and forth in the axial direction in response to the rotation of the handle and transmits that movement to the main shaft 71, so by detecting the torsional torque generated between the oscillating member and the main shaft as an electrical signal, it is possible to achieve the same effect as the above-mentioned embodiment.

[0043] Next, with reference to Figures 5 and 6, the technical effects of the fishing reel 1 according to one embodiment of the present invention will be described in comparison with a conventionally known torque detection unit (torque detection means). Figure 5 is a conceptual diagram of the configuration of the oscillating mechanism and torque detection unit (torque detection means) according to one embodiment of the present invention, where Figure 5(a) shows the state in which the oscillating member 72 is located in the axially most forward position, and Figure 5(b) shows the state in which the oscillating member 72 is located in the axially most rearward position. Figure 6 is a conceptual diagram of the configuration of the oscillating mechanism and torque detection unit (torque detection means) according to a conventionally known oscillation mechanism, where Figure 6(a) shows the state in which the oscillating member 172 is located in the axially most forward position, and Figure 6(b) shows the state in which the oscillating member 172 is located in the axially most rearward position.

[0044] First, the configuration of a conventionally known torque detection unit (torque detection means) will be described with reference to Figure 6. As shown in Figure 6, a fishing reel having a conventionally known torque detection unit (torque detection means) is composed of a fishing reel body 104, a main shaft 171, an oscillating member 172, a torque detection unit (torque detection means) 181, a torsion member 183, a substrate 185, and a cable 186. Note that a description of the same configuration as in the above-described embodiment will be omitted. The oscillating member 172 reciprocates in the axial direction relative to the fishing reel body 104. The main shaft 171 is rotatably supported by the oscillating member 172 and moves integrally with it in the axial direction.

[0045] The torsion member 183 is supported rotatably within a predetermined range relative to the reel body 104. Furthermore, by engaging with the main shaft 171 in a D-cut shape or the like, the torsion member 183 moves integrally with the main shaft 171 in the rotational direction and slides in the axial direction. Similar to the position sensor 81 described above, the torque detection sensor 181 outputs an electrical signal corresponding to the torque generated in the torsion member 183, and transmits this output information to the circuit board 185 via a cable 186.

[0046] In contrast, the fishing reel 1 according to one embodiment of the present invention can reduce sliding resistance. More specifically, in the conventional fishing reel 100 described above, when the oscillating member 172 reciprocates in the axial direction, the torsion member 183 and the main shaft 171 move relative to each other in the axial direction, generating sliding resistance between these members. This sliding resistance increases, particularly when torque is generated in the main shaft 171, and is ultimately converted into thermal energy. This sliding resistance increases the load when the user rotates the handle, which in turn causes discomfort to the user and reduces the efficiency of the entire mechanism. In contrast, in the fishing reel 1 according to one embodiment of the present invention, the main shaft 71 and the torsion member 83 move together in the axial direction, eliminating sliding resistance. In this way, it is possible to avoid discomfort to the user and achieve improved efficiency of the entire mechanism.

[0047] Furthermore, the fishing reel 1 according to one embodiment of the present invention makes it possible to achieve a more compact fishing reel. This will be explained by comparing Figures 5 and 6. As shown in Figures 5 and 6, the rear end of the oscillating member moves from point F in Figures 5(a) and 6(a) to point R in Figures 5(b) and 6(b), which is axially rearward by the stroke S of the oscillator mechanism. As shown in Figure 6, in a conventional fishing reel 100, the torsion member 183 needs to be positioned rearward of point R to avoid interference with the oscillating member 172. Furthermore, in order to fit the main shaft 171 and the torsion member 183 in the state shown in Figure 6(a), if the minimum fit is W, the main shaft 171 must extend rearward from point F by more than S+W. Therefore, in the state shown in Figure 6(b), the main shaft 171 protrudes rearward from point R by more than S+W. In other words, the fishing reel body needs to be large enough to accommodate this length.

[0048] In contrast, with the fishing reel 1 according to one embodiment of the present invention, as shown in Figure 5, the torsion member 83 and the main shaft 71 do not move relative to each other in the axial direction and can be positioned in constant contact. Therefore, even in the case of Figure 5(b), it is sufficient for the main shaft to protrude from point R by the minimum fitting width W. In this way, the fishing reel body 1 can be made smaller in size by a distance S in the axial rearward direction compared to conventional fishing reels. That is, with the fishing reel 1 according to one embodiment of the present invention, the greater the movement amount S of the oscillator mechanism, the greater the effect of miniaturization.

[0049] In addition, the fishing reel 1 according to one embodiment of the present invention also provides the following technical effects. When tension is generated in the fishing line and torque is generated in the spool 3, stress is generally generated in various locations within the fishing reel. For example, stress corresponding to the tension of the fishing line is generated in the line guide 51 that guides the fishing line, the rotor 5 that holds it, and the fishing rod attachment portion (reel foot) of the main frame 4. It is possible to measure the tension of the fishing line by detecting these stresses using a detection device such as a strain gauge. However, if the detection device is provided in the rotor 5 or the line guide 51, the detection device will rotate infinitely relative to the reel body. This necessitates the use of a wireless or other means to power the detection device and output signals from the detection device. Furthermore, if the detection device is provided in a portion that the user touches, such as the reel foot, or if the user touches the reel body, strain will occur even when no torque is generated in the spool 3, making it difficult to detect the tension of the fishing line. Furthermore, at a specific location, such as a portion of the rotor 5, even if the torque generated in the spool 3 is the same, the stress may change depending on the position of the oscillator mechanism. In contrast, by detecting the torsional torque between the main shaft 71 and the oscillating member 72, as in the fishing reel 1 according to one embodiment of the present invention, the torque of the spool 3 can be detected with high accuracy, since signals are rarely detected by methods other than the torque on the spool 3 as long as the reel is operated normally. Furthermore, the torque of the spool 3 can be detected regardless of the position of the oscillator mechanism.

[0050] As can be seen by comparing Figures 5 and 6, in the fishing reel 1 according to one embodiment of the present invention, the torque detection means reciprocates axially relative to the fishing reel body. On the other hand, due to size and other constraints, it is desirable to mount the battery for powering the torque detection means and the circuit board containing the arithmetic circuit for processing the signal output by the torque detection means on the fishing reel body. For this reason, in the fishing reel 1 according to one embodiment of the present invention, it is desirable to electrically connect the circuit board and the torque detection means using a flexible cable such as a flexible printed circuit board or lead wire. Because the torque detection unit reciprocates within a limited range, ensuring that the flexible cable is sufficiently long ensures stable power supply and signal output from the circuit board throughout the entire range of movement. Because the cable is subjected to repeated stress, particularly at bent portions, measures to prevent cable breakage, such as a large minimum bending radius, are recommended.

[0051] The fishing reel 1 according to any of the above-described embodiments of the present invention can be applied to a line winding device. Also, the fishing reel 1 according to any of the above-described embodiments of the present invention can be applied to a winch.

[0052] The dimensions, materials, and arrangement of each component described in this specification are not limited to those explicitly described in the embodiments, and each component can be modified to have any dimensions, materials, and arrangement that can be included in the scope of the present invention. Furthermore, components not explicitly described in this specification can be added to the described embodiments, and some of the components described in each embodiment can be omitted.

[0053] REFERENCE SIGNS LIST 1 Fishing reel 3 Spool 4 Reel body 5 Rotor 7 Oscillating mechanism 8 Torque detection section (torque detection means) 71 Main shaft 72 Oscillating member 74 Oscillating gear 81 Position sensor 82 Detected section 84 Rotating section 85 Board 86 Cable

Claims

1. A fishing line winding device that can be fixed to a fishing rod, comprising: a spool capable of winding fishing line around a central axis that is approximately parallel to the extension direction of the fishing rod; a rotor that has a guide section that guides the fishing line and is rotatable around the spool; an operating section that rotates the guiding section; a switching section that switches between enabling and disabling guiding by the guiding section; a reciprocating member that reciprocates in the direction of the central axis of the spool as the rotor rotates; and a torque detection section that detects the torque generated between the reciprocating member and the spool.

2. The thread winding device according to claim 1, wherein the torque detection unit is disposed on the reciprocating member.

3. The thread winding device according to claim 1, further comprising: a reel body, a power supply unit fixed to the reel body, and a flexible cable for supplying electricity from the power supply unit to the torque detection unit.

4. A fishing reel, the fishing reel being the line winding device according to any one of claims 1 to 3.

5. A winch, wherein the thread winding device according to any one of claims 1 to 3 is a winch.

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