Fishing reel and battery box

Abstract

To provide a fishing reel comprising clutch position detecting means capable of detecting clutch ON / OFF operation without upsizing a reel body.SOLUTION: A fishing reel according to the present invention comprises: a battery box 30 for housing a replaceable battery; a clutch mechanism comprising a clutch operation member 15 for switching a spool between a free rotation state and a fishing line winding state; and clutch position detecting means for determining whether the clutch mechanism is in an ON state or an OFF state. The clutch position detecting means comprises: a magnet 41 held by a holding member 45 capable of being moved integrally with the clutch operation member 15; and a clutch detecting sensor 42 for detecting the magnet 41. The clutch detecting sensor 42 is housed in the battery box 30.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to a fishing reel in which a fishing line is wound onto a spool by a reeling operation of a handle. [Background technology]

[0002] Conventionally, dual-bearing reels, in which the spool is rotatably supported between the side plates of the reel body, have been known as fishing reels, and some of these dual-bearing reels are equipped with a counter display function that displays the amount of fishing line released (water depth) when the clutch mechanism is turned off and the spool is allowed to rotate freely. Normally, the amount of fishing line released is calculated according to a predetermined program by detecting the amount of spool rotation using a magnet attached to the side of the spool, which is detected by a magnetic sensor attached to the reel body.

[0003] In the dual-bearing reels described above, it may be desirable to add new functions by detecting the movement of the actuating members in addition to detecting the rotation of the spool. For example, Patent Document 1 discloses an electric reel in which a clutch sensor is attached to the clutch plate and has the function of detecting the clutch ON and clutch OFF states of the clutch mechanism. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent Publication No. 2020-103043 Summary of the Invention [Problem to be solved by the invention]

[0005] The clutch sensor disclosed in the aforementioned Patent Document 1 is mounted on a clutch plate that constitutes a clutch mechanism disposed on a side plate on the handle side, which results in the handle side plate becoming larger and makes it difficult to reduce the size of the reel body. That is, a housing section must be provided to house the clutch sensor, and this housing section must be waterproof, which places a limit on how small the reel body can be.

[0006] Note that some manual winding dual bearing reels have a control case with a display unit located between the left and right side plates, and are equipped with an IC counter that displays information such as water depth and shelf information on the display unit, but such manual winding dual bearing reels do not have the technical concept of installing a clutch sensor in the first place.In other words, the prior art for electric and manual winding dual bearing reels does not have the technical concept of efficiently utilizing space and locating a clutch sensor that detects the ON / OFF operation of the clutch on the side plate opposite the handle, without increasing the size of the reel body.

[0007] The present invention was made in response to the above-mentioned problems, and aims to provide a fishing reel equipped with a clutch position detector that can detect the ON / OFF operation of the clutch without increasing the size of the reel body. Another aim of the present invention is to provide a battery box that achieves these aims. [Means for solving the problem]

[0008] In order to achieve the above-mentioned object, the fishing reel of the present invention comprises a spool rotatably supported between left and right side plates of a reel body, a handle for driving the spool to rotate, a battery box provided on the side plate opposite the handle of the left and right side plates and containing replaceable batteries, a clutch mechanism having a clutch operating member for switching the spool between a free rotation state and a fishing line winding state, and clutch position detection means for determining whether the clutch mechanism is in an ON state or an OFF state, wherein the clutch position detection means comprises a detectable portion held by a holding member that can move integrally with the clutch operating member, and a clutch detection sensor that detects the detectable portion, and the clutch detection sensor is housed within the battery box.

[0009] In the above-described configuration, when the clutch operating member moves in conjunction with the ON / OFF operation of the clutch mechanism, the detectable portion held by the holding member moves integrally, and the clutch detection sensor disposed within the battery box detects this movement to determine whether the clutch mechanism is in the ON or OFF state. The battery box is provided with a waterproof structure in advance, and by accommodating the clutch detection sensor within the battery box, there is no need to provide a separate housing for the clutch detection sensor, nor is there a need for a waterproof structure. Furthermore, by arranging such a battery box on the side plate opposite the handle, space can be utilized effectively, preventing the reel from becoming larger overall.

[0010] The present invention also provides a battery box that houses a clutch detection sensor, which can be mounted on the side panel of a fishing reel, thereby simplifying the structure of the reel body. [Effects of the Invention]

[0011] According to the present invention, a fishing reel is provided with a clutch position detector that can detect the ON / OFF operation of the clutch without increasing the size of the reel body. Also, the battery box of the present invention makes it possible to detect the ON / OFF operation of the clutch without increasing the size of the reel body. [Brief explanation of the drawings]

[0012] [Figure 1] 1 is a plan view showing an embodiment of a fishing reel according to the present invention; [Figure 2] 2 is a side view of the fishing reel shown in FIG. 1 as seen from the side opposite the handle. [Figure 3] 3 is a diagram showing a state in which a cover member is removed from the state shown in FIG. 2. FIG. [Figure 4] 10A and 10B are diagrams showing the configuration of the battery box portion, where FIG. 10A is a diagram seen from the rear side, and FIG. 10B is a diagram seen from the front side. [Figure 5] 4 is a cross-sectional view taken along line AA in FIG. 3, showing the internal structure of the battery box. [Figure 6] 4 is a cross-sectional view taken along line BB in FIG. 3, showing the internal structure of the battery box. [Figure 7] FIG. 5 is a cross-sectional view taken along line CC in FIG. 4(a), showing the internal structure of the battery box. [Figure 8] FIG. 10 is a schematic diagram showing the positional relationship between the control board installed in the battery box, the clutch position detection means, and the spool detection means, as viewed from the spool side. DETAILED DESCRIPTION OF THE INVENTION

[0013] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of a hand-winding type dual-bearing reel (hereinafter referred to as a reel) which is a fishing reel according to the present invention will be described with reference to the drawings. FIG. 1 is a plan view showing one embodiment of a reel, FIG. 2 is a side view seen from the side opposite the handle, and FIG. 3 is a view showing the state shown in FIG. 2 with a cover member removed.

[0014] The reel body 1A of the reel 1 according to this embodiment has left and right side plates 4A, 4B equipped with left and right covers 3a, 3b attached to left and right frames (left frame 2 is shown in FIG. 3), which are integrated via multiple supports as is well known. In addition, reel legs 5 for attachment to the reel seat of a fishing rod are integrally formed between the left and right frames.

[0015] A spool shaft is rotatably supported via bearings between the left and right side plates of the reel body 1A, and a spool 7 around which fishing line is wound is fixed to the spool shaft. The spool 7 is rotated via a known winding drive mechanism disposed within the right side plate by rotating a handle 8 provided on one of the side plates (the right side plate 4B in this embodiment).

[0016] Also, a well-known drag mechanism 12 is provided on the right side plate 4B for applying a drag force to the spool 7 when fishing line is let out from the spool 7 during fishing. This drag mechanism 12 includes a plurality of braking members that frictionally engage with the side of the drive gear of the reel drive mechanism, which is rotatably attached to the handle shaft, and a braking force adjuster (also called a star drag) 13 that applies a pressing force to the braking members. The braking force adjuster 13 is mounted on the reel body side near the handle 8 and is rotatable relative to the handle shaft. By rotating the braking force adjuster 13, a pressing force is applied to the braking members, thereby adjusting the friction (drag force) of the drive gear against the handle shaft.

[0017] The reel drive mechanism includes the drive gear rotatably mounted on the handle shaft, a pinion gear meshing with the drive gear, and the like, and has the function of transmitting the rotation of the handle shaft to the spool 7 via the drag mechanism 12, the drive gear, and the pinion gear. The pinion gear moves axially by the operation of a known clutch mechanism disposed in the right side plate, and is engaged with and disengaged from the spool shaft, thereby switching between a power transmission state (clutch ON) and a power disconnection state (clutch OFF).

[0018] The clutch mechanism includes a clutch operating member 15 disposed between the left and right side plates 4A, 4B behind the spool 7. When the clutch operating member 15 is pressed down, the spool 7 is placed in a clutch-off state, allowing it to freely rotate forward and backward. Operating the handle 8 to reel in the line in this state places the clutch in an ON state via a known automatic return mechanism, and the fishing line can be wound onto the spool 7 by operating the handle 8 in this state.

[0019] Additionally, an information display device (IC counter) 20 having a display unit 20a is disposed above the spool 7 between the left and right side plates of the reel body 1A. This information display device 20 also functions as a thumb rest, and the display unit 20a displays various information, such as information on the length of line being unwound from the spool by detecting the rotation of the spool 7 when the clutch is off, as well as shelf information and time information. The information display device 20 is also provided with an operation button 20b, which allows the user to input various setting information (although one operation button is provided in FIG. 1, multiple operation buttons may be provided).

[0020] The line length information (line payout length, payout speed, etc.) described above is calculated according to a predetermined calculation program based on detection signals from a spool detection sensor that constitutes spool detection means that detects the amount and direction of rotation of the spool 7. On the side plate 4A on the side opposite the handle, there are arranged components of a control device that controls various information, such as the spool detection sensor, a control board that processes the detection signals from the spool detection sensor, a cable that sends and receives signals from the control board to the information display device 20, and a power source (battery box) for operating these components.

[0021] In addition to detecting the rotation of the spool 7, the present invention adds a new function to the manual winding, dual-bearing reel with an IC counter function described above by detecting the operation of the clutch operating member 15 of the clutch mechanism. Specifically, in this embodiment, when the spool 7 rotates in the line-releasing direction while the drag mechanism is operating, the device is equipped with a function that issues an audible notification of the rotation state. In this case, the spool 7 rotates in the line-releasing direction when the clutch is OFF and the spool 7 rotates freely, or when the clutch is ON and a fish is hooked, causing the drag mechanism to operate and the spool 7 to rotate. In this embodiment, the device detects that the clutch is ON, and issues an audible notification when the spool 7 rotates in the line-releasing direction while in this state.

[0022] That is, the position of the clutch operating member 15 is detected to distinguish between the clutch ON state and the clutch OFF state, and when the spool 7 rotates in the fishing line releasing direction in the clutch ON state, the rotation is notified by sound.

[0023] The clutch position detection means performing the above-mentioned function can be provided in association with the clutch mechanism located within the side plate on the handle side, but since the side plate on the handle side is also equipped with the winding drive mechanism, drag mechanism, automatic return mechanism, etc., as mentioned above, providing the clutch position detection means there would result in the reel body becoming larger. In particular, with a manual winding dual-bearing reel like this embodiment, and even with a small electric reel that can be operated by hand, it is sometimes required to make the reel body as small as possible, and it is preferable that the clutch position detection means be configured to provide stable detection results efficiently and without complicating the structure.

[0024] In this embodiment, the clutch position detecting means is efficiently arranged by utilizing the battery box 30 installed on the side plate 4A opposite the handle, and is configured to provide stable detection operation. The configuration of the clutch position detection means in this embodiment will be described below with reference to FIGS.

[0025] FIG. 3 shows the side plate 4A on the side opposite the handle, with the left cover 3a removed from the state shown in FIG. A battery box 30 that supplies power to the information display device 20 is disposed on the side panel 4A. The battery box 30 is configured to accommodate a battery (button battery; see FIG. 6) 80 that is approximately the same size as a 500-yen coin, and includes a substantially cylindrical first main body 30A, a second main body 30B that is integrated with the first main body 30A and fixed to the frame 2 of the reel body, and a lid member 30C that closes the opening of the first main body 30A. The control board (circuit board) 50 is disposed within the battery box 30 and is a substantially disk-shaped board that matches the shape of the battery box, with its center fixed to the second main body 30B by a set screw 50a. A cable 51 that transmits and receives signals to and from the information display device 20 and supplies power to the information display device is connected to the control board 50.

[0026] As described above, the battery box 30 of this embodiment has a shape with an outer peripheral surface that is approximately circular in cross section, and is fixed to the frame 2 within the left side plate 4A. As shown in FIG. 6, O-rings (sealing members) 32a, 32b are interposed between the first body 30A and the second body 30B, and between the first body 30A and the cover member 30C in the battery box 30, and the storage section 30S inside the battery box is waterproofed.

[0027] The battery box 30 is fixed to the frame 2 by a predetermined fixing structure. In this embodiment, fixing pieces 31 protruding in the radial direction are formed on the first main body 30A (or the second main body 30B), and these are fixed to fixing portions 2a provided on the frame 2. The battery box 30 is fixed, for example, by screwing screws 31a into the fixing portions 2a, and the fixing structure in this embodiment is provided in two locations approximately 180° apart (see FIG. 3).

[0028] 2, the cover member 30C is exposed on the side surface, approximately flush with the left cover 3a, and has a long groove 30a formed on its surface. Therefore, when the battery runs out, the user can insert a coin or the like into the long groove 30a to remove the cover member 30C and replace it with a new battery.

[0029] The battery box 30 is provided with a clutch position detection means 40 that can detect the ON / OFF operation of the clutch mechanism. The clutch position detection means 40 of this embodiment is configured to detect the ON / OFF operation of the clutch operating member 15, detecting the OFF state when the clutch operating member 15 is pushed down from its initial position, and the ON state when the clutch operating member 15 returns to its initial position. The clutch position detection means 40 of this embodiment is configured to include a detection target (magnet 41) on the displacing side, and a clutch detection sensor 42 (also referred to as a Hall element 42) that is provided inside the battery box 30 and detects changes in the magnetic field of the displacing magnet 41. A magnetic sensor that has a simple structure and is capable of detection even in a sealed state is used.

[0030] The clutch operating member 15 is disposed between the left and right frames rearward of the spool 7 so as to be able to move up and down. Figures 3 to 7 show the left frame 2, which is the frame on the side opposite the handle, and an end 15a of the clutch operating member 15 is held so as to be able to move up and down in an elongated hole 2b formed in the frame 2. The other end of the clutch operating member 15 is also held so as to be able to move up and down in an elongated hole formed in the right frame (not shown), just like the left frame, which allows the clutch operating member 15 to move up and down stably.

[0031] End 15a of clutch operating member 15 is inserted through elongated hole 2b, and the portion protruding from elongated hole 2b is connected to holding member 45 having magnet 41. Specifically, holding member 45 of this embodiment includes a holding body 45A incorporating magnet 41 and an engaging portion 45B, which will be described later, and end 15a of clutch operating member 15 is fitted into a bifurcated protrusion 45a formed on holding body 45A. Therefore, when clutch operating member 15 moves up and down by operating the clutch on and off, holding member 45 can move integrally with it.

[0032] Furthermore, the holding member 45 engages with a guide portion formed around the periphery of the battery box 30, and is guided to stabilize the movement of the holding member 45. In this embodiment, the holding member 45 and the guide portion are engaged with each other in a concave-convex manner, and the holding member 45 is configured to move in this state. Specifically, the guide portion is configured as a groove 46 formed in a circular shape (or an arc shape) along the outer circumferential surface of the battery box 30 on the exposed surface side of the frame 2, and a ring-shaped (or C-ring-shaped) guide plate (engagement portion) 45B is integrally formed with the holding member 45 so as to engage (fit) with the groove 46 (see FIGS. 4 to 7).

[0033] In the above configuration, it is preferable that the guide plate 45B is prevented from coming off in the axial direction by the fixing piece 31 provided on the battery box 30 (see FIG. 3). Furthermore, it is preferable to provide some play in the connecting portion between the clutch operating member 15 and the holding member 45 (holding body 45A). For example, some play may be provided in the fit between the end 15a of the clutch operating member 15 and the bifurcated protrusion 45a formed on the holding body 45A.

[0034] The side plate 4A is provided with spool detection means 60 that detects the rotation speed (amount of rotation) and direction of rotation of the spool 7, and this spool detection means 60 is also arranged in relation to the battery box 30. The spool detection sensors 61 that make up the spool detection means 60 in this embodiment use reed switches that open and close in response to changes in a magnetic field (hereinafter also referred to as reed switches 61), and three of these are arranged circumferentially within the range of the side surface of the spool 7. The spool detection means 60 also has a detection target (magnet 62) that is detected by the reed switches 61, and this magnet 62 is held by a magnet holding member 7A fixed to the side surface 7a of the spool 7 (the magnet 62 may also be fixed directly to the side surface 7a of the spool 7).

[0035] The reed switches 61 arranged along the circumferential direction are mounted on the back side (frame side) of the control board 50 fixed inside the battery box 30, and the clutch detection sensor 42, which is the clutch position detection means, is mounted on the front side (cover 3a side) of the control board 50. That is, as shown in Fig. 7, the clutch detection sensor (Hall element 42) of the clutch position detection means 40 is fixed at a predetermined position on the outer periphery of the first main body 30A of the battery box 30 (a position substantially opposite the position where the clutch operating member 15 is in the ON state), and the clutch detection sensor 42 and the spool detection sensor 61 are mounted on both sides of the control board 50 installed inside the battery box 30, which has been waterproofed in advance. As a result, the clutch detection sensor 42 and the spool detection sensor 61 are unitized in the battery box 30, and there is no need to apply waterproofing treatment to protect the sensors, making it possible to simplify and compact the detection sensors.

[0036] In this case, it is preferable that the clutch detection sensor 42 is positioned so that part or all of it overlaps with the battery 80 housed in the battery box 30 when viewed from the axial direction (in Figure 8, the clutch detection sensor 42 is fixed so that the entirety of it overlaps with the battery 80). This configuration prevents the battery box from becoming too large, and the reel body from becoming too large. In particular, by having the entire clutch detection sensor 42 overlap the battery 80, the reel body can be made smaller in the radial direction.

[0037] FIG. 8 is a diagram showing the positional relationship between the control board 50, clutch position detection means 40, and spool detection means 60 installed in the battery box 30, and is a schematic diagram viewed from the spool side. In this embodiment, as described above, since both the clutch position detection means 40 and the spool detection means 60 are composed of magnetic sensors that detect changes in magnetic fields, when these detection sensors are installed inside the battery box 30, the locations of the sensors must be considered. In this embodiment, the detection sensors (Hall element 42, reed switch 61) are installed on both sides of the control board 50, which is hermetically sealed inside the battery box 30, thereby making efficient use of the space required to install the two detection means and preventing interference between the magnetic fields of the magnets. Furthermore, by installing the detection sensors 42, 61 within the control board 50 and on both sides thereof rather than outside it, the detection sensors can be efficiently installed inside the battery box and the risk of false detection due to magnetic field interference can be reduced.

[0038] In this case, if the control board 50 is thick, the magnets 41, 62 will not affect each other's magnetic fields, and the installation positions of the detection sensors 42, 61 are not particularly limited. However, if the control board 50 is thin, the magnetic fields of the magnets 41, 62 may interfere with each other (magnetic field interference). For this reason, as shown in Fig. 8, the detection sensors 42, 61 are preferably disposed at offset positions in the axial direction without overlapping, so as to maintain a certain distance (a distance that does not cause magnetic field interference) across the control board 50. This can reduce the risk of false detection.

[0039] In this embodiment, the clutch position detection means 40 is used to emit a sound (drag sound) when the spool detection means 60 detects rotation in the line-releasing direction after determining that the clutch mechanism is in the ON state. For example, when a fish is hooked while the clutch mechanism is in the ON state, the angler can know that the drag mechanism is slipping and the fishing line is being released. In addition, by changing the volume or tone of the sound alert in this state depending on the rotation speed of the spool, the angler can also be informed of the braking state of the drag mechanism.

[0040] The above-described fishing reel provides the following advantages. By installing the clutch position detection means 40 on the side plate opposite the handle, rather than on the side plate on the handle side, the reel body does not become larger and space can be used efficiently. In particular, with manual double-bearing reels and small handheld electric reels, it is possible to install new functions without increasing the size of the reel body.

[0041] Furthermore, by using the internal space of the battery box 30 to locate the clutch detection sensor 42, waterproofing can be achieved using the sealing structure of the battery box 30, eliminating the need to provide a separate waterproof structure for the detection sensor, simplifying the structure and making it more compact. In this case, using a magnetic sensor as the clutch detection sensor simplifies the structure and makes it possible to efficiently use the internal space of the battery box 30.

[0042] Furthermore, when the clutch operating member 15 moves in response to the ON / OFF operation of the clutch mechanism, the magnet 41 held by the holding body 45A of the holding member 45 moves vertically together with the movement of the clutch operating member 15. A detection sensor 42 disposed within the battery box 30 detects changes in the magnetic field of the magnet 41 within the holding body 45A to detect the position of the clutch operating member 15 and determine whether the clutch mechanism is in the ON or OFF state. The ring-shaped guide plate 45B of the holding member 45 engages with a guide portion (groove 46) formed in the frame 2 so as to fit along the outer periphery of the main body of the battery box 30. Since the guide plate 45B can rotate stably, the movement of the holding body 45A holding the magnet 41 is also guided stably. This ensures stable detection capabilities.

[0043] In particular, in this embodiment, the guide plate 45B of the holding member 45 rotates along the circumferential direction of the battery box, so that it can be set to maintain the same distance from the detection sensor 42, enabling stable detection capabilities to be achieved.

[0044] In this embodiment, guide plate 45B is prevented from coming off in the axial direction by the fixing piece 31 provided on battery box 30, so guide plate 45B will not displace in the axial direction, enabling stable detection capability to be achieved. Also, by providing some play in the connecting portion between clutch operating member 15 and holding member 45 (holding body 45A), even if play occurs when the clutch operating member moves, the play can be absorbed and does not affect the rotation of guide plate 45B, ensuring stable detection capability.

[0045] Furthermore, the battery box 30 incorporating the clutch detection sensor 42 (and spool detection sensor 61) as in this embodiment is waterproofed in advance and made into a unit, so it can be incorporated into various locations within the side panels of a dual-bearing reel.

[0046] Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments and can be practiced in various modified forms without departing from the spirit and scope of the present invention. For example, in this embodiment, a cylindrical battery box 30 is mounted, and the guide parts are circular or arc-shaped to efficiently arrange them, but if the battery box is cubic (rectangular parallelepiped) in shape, the guide parts can be modified as needed to fit the shape, such as extending in the vertical direction or the front-to-rear direction. In other words, the shape of the guide parts can be modified as needed depending on the shape of the battery and the shape of the battery box to be housed.

[0047] Furthermore, although the holding member (guide plate) and the guide portion are engaged with each other by a concave-convex engagement, the guiding method can be modified as appropriate, for example, by forming a convex portion on the frame 2 side and a concave portion on the guide plate side. Furthermore, the clutch detection sensor constituting the clutch position detection means is not limited to a magnetic sensor, and can be modified as appropriate, for example, by using an optical sensor. [Explanation of symbols]

[0048] 1 Fishing reel (double bearing type reel) 1A Reel body 4A,4B Left and right side plates 7 spools 15 Clutch operating member 30 Battery box 40 Clutch position detection means 41 Detected part (magnet) 42 Clutch detection sensor (Hall element) 45 Retaining member 45A Holder 45B Guide Plate 46 Groove (guide section) 50 Control board 60 Spool detection means 61 Spool detection sensor (reed switch)

Claims

1. a spool rotatably supported between left and right side plates of the reel body; a handle for rotating the spool; a battery box provided on the side plate opposite the handle of the left and right side plates, the battery box containing replaceable batteries; a clutch mechanism including a clutch operating member for switching the spool between a free rotation state and a fishing line winding state; a clutch position detection means for determining whether the clutch mechanism is in an ON state or an OFF state; A fishing reel having: the clutch position detection means includes a detected portion held by a holding member that is movable integrally with the clutch operating member, and a clutch detection sensor that detects the detected portion, The clutch detection sensor is housed in the battery box, The clutch detection sensor is disposed so as to overlap a part or all of the battery housed in the battery box. A fishing reel characterized by:

2. A control board is provided in the battery box, 2. The fishing reel according to claim 1, wherein the clutch detection sensor is disposed on one surface of the control board.

3. A fishing reel as described in Claim 2, characterized in that a spool detection means for detecting the rotation state of the spool is arranged on the side plate on the opposite side from the handle, and a spool detection sensor constituting the spool detection means is housed within the battery box.

4. A fishing reel as described in Claim 3, characterized in that the spool detection sensor is arranged on the other side of the control board.

5. A fishing reel as described in Claim 4, characterized in that the clutch detection sensor and the spool detection sensor, which are respectively arranged on both sides of the control board, are arranged at positions offset from each other when viewed from the axial direction.

6. A battery box containing batteries that supplies power to a control case equipped with a display unit that displays various information, the battery box being disposed between the left and right side plates of a reel body, The reel body includes a clutch detection sensor that detects whether the clutch mechanism is in an ON state or an OFF state. A spool detection sensor constituting a spool detection means for detecting the rotation state of the spool is housed in the battery box, A control board on which the clutch detection sensor and the spool detection sensor are mounted is disposed within the battery box, The clutch detection sensor and the spool detection sensor are disposed on both sides of the control board. A battery box characterized by:

Images