Line winders, fishing reels and winches

Abstract

To provide a line spooler incorporated in a reel, miniaturized, and including a detection part capable of measuring a load acting on an operation part with high accuracy both when the operation part is rotated and when it is stopped.SOLUTION: A line spooler includes a spool around which a fishline can be wound, an operation part 1 for winding the fishline around the spool, a supporting shaft 2 for rotatably supporting the operation part, a restoration force generating part 4 for generating restoration force between the supporting shaft and the operation part, a regulation part 3 for regulating an amount of rotational movement of the operation part, and a detection part 5 for detecting the amount of rotational movement of the operation part.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a thread winding device, a fishing reel, and a winch that can detect torque with high accuracy even when the operation unit is rotating or stopped.

Background Art

[0002] In a thread winding device such as a fishing reel, generally, a rotation transmission mechanism is provided that transmits the rotation of a motor and a handle to a spool to rotate the spool in the thread winding direction. In a rotation transmission device of this type of electric reel, a so-called assist electric reel rotation transmission device that drives a motor according to the magnitude of the manual force input from the handle is known.

[0003] For example, in Patent Document 1, a manual drive system that is rotationally driven by a handle, an electric drive system that is provided in parallel with the manual drive system and rotationally drives a spool by a motor, manual force detection means that detects the magnitude of the input manual force, and control means that controls the auxiliary driving force from the motor at a predetermined ratio with respect to this detection value are provided, and the motor always provides assistance at a constant ratio with respect to the manual force from the handle. Therefore, a rotation transmission device that can easily wind up a fishing line while maintaining the feeling of manual winding is disclosed.

[0004] Further, Patent Document 2 discloses a rotational transmission device that transmits the rotation from a handle attached to the tip of a handle shaft and a motor to a spool for winding a thread, the device including: a first rotational speed detection means for detecting the rotational speed of the handle; a second rotational speed detection means for detecting the rotational speed of the handle shaft; a first one-way clutch disposed between the handle and the handle shaft for transmitting only the rotation of the handle in the thread winding direction to the handle shaft; a first rotational transmission means for transmitting the rotation of the motor to the handle shaft; a second rotational transmission means for transmitting the rotation of the handle shaft to the spool; a second one-way clutch provided in the first rotational transmission means for transmitting only the rotation of the motor in the thread payout direction to the handle shaft; a third one-way clutch for prohibiting the rotation of the handle shaft in the thread payout direction; a clutch mechanism provided in the second rotational transmission means for connecting and disconnecting the handle shaft and the spool; and a first motor control means for controlling the motor so that the difference between a first speed detected by the first rotational speed detection means and a second speed detected by the second rotational speed detection means is equal to or less than a predetermined speed.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0006] However, in the rotational transmission device according to Patent Document 1, since it is necessary to directly detect the human power, that is, the torque acting on the handle shaft, a two-stage speed increasing type planetary gear mechanism has to be used, resulting in a problem that the configuration of the detection means for assist control becomes complicated.

[0007] In addition, in the rotation transmission device of the electric reel according to Patent Document 2, in order to detect the rotation speed of the handle, it is premised that the handle is rotating at a speed equal to or higher than a predetermined speed. When the handle is not rotating at all or is hardly rotating, even if a load is applied to the handle, it is impossible to obtain assistance from the motor, and there is also a problem that it is difficult to miniaturize the entire device.

[0008] The present invention has been made in view of the above circumstances, and an object thereof is to provide a spooling device that can be incorporated into a reel and miniaturized, and has a detection unit that can measure the load acting on the operation unit with high accuracy whether the operation unit is rotating or stopped. Other objects of the present invention will become apparent by referring to the entire specification.

Means for Solving the Problems

[0009] The spooling device according to an embodiment of the present invention includes a spool capable of winding fishing line, an operation unit that performs a spooling operation on the spool, a support shaft unit that rotatably supports the operation unit, a restoring force generation unit that generates a restoring force between the support shaft unit and the operation unit, a restricting unit that restricts the rotational movement amount of the operation unit, and a detection unit that detects the rotational movement amount of the operation unit.

[0010] The spooling device according to an embodiment of the present invention includes a spool capable of winding fishing line, an operation unit that performs a spooling operation on the spool, a support shaft unit that rotatably supports the operation unit, a restoring force generation unit that generates a restoring force between the support shaft unit and the operation unit, a detected unit that is movable in the axial direction of the support shaft unit, a detection unit that detects the displacement of the detected unit in the axial direction, and a conversion mechanism that converts the movement of the operation unit in the rotational direction and transmits it to the detected unit.

[0011] In the spooling device according to an embodiment of the present invention, the restoring force generation unit is a spring member.

[0012] In the spooling device according to an embodiment of the present invention, the conversion mechanism is a cam structure or a screw structure.

[0013] In the thread winding device according to an embodiment of the present invention, the detection unit is a non-contact position detection means, and is composed of a light emitting unit that projects light onto the detected unit and a light receiving unit that receives the light from the light emitting unit.

[0014] In the thread winding device according to an embodiment of the present invention, a permanent magnet is provided on the detected unit, and the detection unit is a non-contact position detection means and is a magnetic detection unit that detects the magnetism of the permanent magnet provided on the detected unit.

[0015] In the thread winding device according to an embodiment of the present invention, a sound wave reflection unit is provided on the detected unit, and the detection unit is a non-contact position detection means and is a sound wave detection unit that detects sound waves from the sound wave reflection unit provided on the detected unit.

[0016] The thread winding device according to an embodiment of the present invention is a fishing reel.

[0017] The thread winding device according to an embodiment of the present invention is a winch.

Advantages of the Invention

[0018] According to the above embodiment, it is possible to provide a thread winding device having a detection unit that can be incorporated into a reel and miniaturized, and that can measure the load acting on the operation unit with high accuracy both when the operation unit rotates and when it stops.

Brief Description of the Drawings

[0019]

Figure 1

Figure 2

Embodiment for Carrying out the Invention

[0020] Hereinafter, embodiments of a thread winding device according to the present invention will be specifically described with reference to the accompanying drawings. The same reference numerals are assigned to common components in a plurality of drawings throughout the plurality of drawings. Note that each drawing is not necessarily drawn to an exact scale for convenience of explanation.

[0021] First, with reference to FIGS. 1 and 2, the configuration of a thread winding device 100 according to an embodiment of the present invention will be described. For the sake of simplicity of explanation, in the following description, parts similar to those of the conventional thread winding device will be omitted in terms of detailed explanation. FIG. 1 shows an exploded perspective view of main components particularly related to the thread winding device 100 according to an embodiment of the present invention, and FIGS. 2(a), (b), and (c) show a perspective view, a side view, and a front view of the assembled state of the main components particularly related to the thread winding device 100, respectively.

[0022] A thread winding device 100 according to an embodiment of the present invention includes a spool (not shown, the same applies hereinafter) capable of winding fishing line, an operation unit 1 that performs a thread winding operation on the spool, a support shaft portion (shaft portion) 2 that rotatably supports the operation unit 1, a restoring force generation unit 3 that generates a restoring force between the support shaft portion 2 and the operation unit 1, a regulating unit (rotation regulating unit) 4 that regulates the amount of rotational movement of the operation unit 1, and a detection unit 5 that detects the amount of rotational movement of the operation unit 1. The spool is a conventionally known one, usually formed in a cylindrical shape, and configured to be able to wind fishing line by its outer peripheral portion. In the following description, the central axis direction of the support shaft portion 2 is defined as the axial direction, and its rotation direction is defined as the rotation direction. In this way, it is possible to provide a thread winding device that can be incorporated into a reel and miniaturized, and has a detection unit capable of measuring the load acting on the operation unit with high precision both when the operation unit rotates and when it stops.

[0023] Further, the spooling device 100 according to an embodiment of the present invention includes a spool capable of winding fishing line, an operation unit 1 that performs a spooling operation on the spool, a support shaft portion (shaft portion) 2 that rotatably supports the operation unit 1, a restoring force generation unit 3 that generates a restoring force between the support shaft portion 2 and the operation unit 1, a detected portion 8 that is movable in the axial direction of the support shaft portion 2, a detection unit 5 that detects the axial displacement of the detected portion 8, and a conversion mechanism 10 that converts the rotational movement of the operation unit 1 and transmits it to the detected portion 8. In this way, it is possible to provide a spooling device that can be incorporated into a reel and miniaturized, and has a detection unit that can measure the load acting on the operation unit with high accuracy both during rotation and at rest of the operation unit.

[0024] The support shaft portion 2 is formed in a substantially cylindrical shape, rotatably supports the operation portion 1 by means of a bearing 12, and the spool can be rotationally operated by operating the operation portion 1 (details of the operation portion 1 will be described later). Note that the support shaft portion 2 is appropriately supported by a bearing 17. Further, a nut 9 that fits with the male screw of the support shaft portion 2 is provided, and by adjusting the screwing degree together with the drive gear unit 19 supported by the support shaft portion 2, the drag force can be adjusted. The drive gear unit 19 has a torque limiter mechanism by friction, and when there is an input exceeding the torque set by the user, it rotates relative to the support shaft portion 2 (idles). The limit torque set by the user can be adjusted by the screwing amount. The spring washer 14 converts the screwing amount (axial movement amount) of this nut 9 into an axial pressing force. At this time, a washer 15 may be provided as appropriate. By this operation, the thread can be wound around the spool. The operation portion 1 can rotate the support shaft portion 2 and can be realized by a combination of a device that receives a user operation such as a handle or a lever and power transmission means such as gears, belts, and shafts. If necessary, a power source such as a motor or an engine may be used. Further, it may have a drag device (torque limiter) that limits the transmitted power and a clutch device that switches the availability of power transmission. Further, a reverse rotation prevention mechanism such as a one-way clutch or a ratchet may be provided in a part of the operation means to prevent the spool from rotating reversely inadvertently.

[0025] Further, the rotation restricting portion 4 is fixed to the support shaft portion 2 and restricts the angular movement amount of the operation portion 1 with respect to the support shaft portion 2 within a predetermined range. In one embodiment of the present invention, the protruding portion 14 provided on the rotation restricting portion 4 abuts against both ends of the recess 16 provided in the handle (or handle portion) 6. Thereby, the handle 6 (operation portion 1) is configured to be rotatable with respect to the support shaft portion 2 at an angle in a range of, for example, 0° to 10° (the angle range is not limited to this). Hereinafter, this angle is defined as θ. The handle 6 is appropriately supported by a ball bearing 12, and the support member 13 supports the handle 6 via the ball bearing 12. The support member 13 is fitted in a sliding fit with the support shaft portion 2 on the inner diameter side, supports the inner diameter side of a linear movement member 7 described later, and a follower pin 23 described later is screwed therein.

[0026] The restoring force generating portion (restoring force generating means) 4 can generate a predetermined restoring force on the handle 6 (operation portion 1). A collar 11 that supports the restoring force generating portion (restoring force generating means) 4 from the inner diameter side is provided. In one embodiment of the present invention, it can be constituted by a spring member (for example, a torsion spring), one end of which contacts the rotation restricting portion 4 and the other end of which contacts the handle 6 (operation portion 1). Thereby, when the torque T acting on the handle 6 (operation portion 1) is below a predetermined value, it is spring-biased so that θ = 0°. And as the torque increases, the angle θ is configured to increase. In one embodiment of the present invention, by making the central axis of the torsion spring substantially coaxial with the central axis of the support shaft portion 2, the increase amount of the torque T and the displacement amount of the angle θ are proportional, and when the value of the torque T is above a predetermined value, by the rotation restricting portion and one end of the recess of the handle coming into contact, it is configured so that the angle θ = 10°. As the restoring force generating portion (restoring force generating means), other methods of generating a restoring force may be used, such as using the magnetic force generated by a permanent magnet, in addition to the elastic spring as described above.

[0027] The straight - moving member 7 is configured in a substantially cylindrical shape and is supported so as to be axially straight - moving (movable) with respect to the support shaft portion 2. By receiving the rotational transmission force from the handle 6 by a rotational transmission portion (not shown), the straight - moving member 7 moves by an angle θ in the rotational direction together with the handle 6 with respect to the support shaft portion 2. A cam groove 52 formed in a spiral shape is provided on the side surface portion of the straight - moving member 7, and together with the follower pin 23 fixed to the support shaft 2, a cam mechanism is configured as the conversion mechanism 10. By this cam mechanism, the straight - moving member 7 also moves axially in accordance with the rotational movement. That is, it is configured such that the angular displacement amount θ in the rotational direction of the handle 6 is converted into the axial movement amount X of the straight - moving member 7. In one embodiment of the present invention, for example, when the angle θ moves by 10°, it is configured to move 1 mm axially, but it is not limited to this.

[0028] Note that the conversion mechanism in one embodiment of the present invention is not limited to the above configuration, and the same effect can be achieved with other configurations. For example, a screw mechanism, that is, a female screw portion and a male screw portion are provided on the handle 6 and the straight - moving member 7 respectively and screwed together, and the straight - moving member 7 is supported so as to be straight - moving with respect to the support shaft portion 2, whereby the rotational movement of the handle 6 can be converted into the axial straight - moving movement of the straight - moving member 7 by the screw mechanism. Also, the conversion mechanism in one embodiment of the present invention may be a mechanism other than the cam mechanism or the screw mechanism.

[0029] The detected portion (detection means) 8 is fixed to the straight - moving member 7 and can detect the axial movement by the detection portion 5 disposed on the reel body. In one embodiment of the present invention, the detected portion (detection means) 8 is a permanent magnet, and the detection portion (detection means) 5 is a known magnetic sensor such as a Hall element. The magnetization characteristics and the like can be adjusted so that the voltage value of the detection portion (detection means) increases in proportion to the axial movement amount of the detected portion (detection means) 8. Also, the detected portion (detection means) 8 has characteristics symmetric with respect to the rotational direction. In one embodiment of the present invention, it is formed in a cylindrical shape and magnetized evenly in the rotational direction. Thereby, even when the detected portion 8 rotates, the output from the detection means can be configured not to change if there is no axial movement amount.

[0030] Note that the combination of the detected part 8 and the detection part 5 is not limited to the magnetic type as described above. As the detection part, for example, a photosensor such as a PSD can be used, and as the detected part, an optical detection method using a light shielding plate or a reflector, or as the detection part, an ultrasonic receiving part and an ultrasonic transmitting part are used, and as the detected part, an ultrasonic detection method using a sound wave reflecting part, etc., a conventionally known displacement detection method can be used.

[0031] It is more preferable that the combination of the detected part 8 and the detection part 5 can detect the displacement in the axial direction of the detected part non - contact. Thereby, the generation of sliding resistance when the support shaft part 2 is rotated can be avoided.

[0032] Each of the above - mentioned members is attached to a reel body (not shown) including a spool via a reel housing 18. As described above, it should be noted that for members other than the above - described constituent members, various conventionally known members can be appropriately used, and detailed descriptions are omitted.

[0033] In the yarn winding device 100 according to an embodiment of the present invention, the restoring force generating part (restoring part) 4 is a spring member (spring part). Also, in the yarn winding device 100 according to an embodiment of the present invention, the conversion mechanism 10 is a cam mechanism (cam structure) or a screw mechanism (screw structure).

[0034] In the yarn winding device 100 according to an embodiment of the present invention, the detection part 5 is a non - contact type position detection means, and is composed of a light emitting part that projects light to the detected part 8 and a light receiving part that receives the light of the light emitting part.

[0035] In the yarn winding device 100 according to an embodiment of the present invention, a permanent magnet is provided on the detected part 8, and the detection part 5 is a non - contact type position detection means and is a magnetic detection part that detects the magnetism of the permanent magnet provided on the detected part 8.

[0036] Also, in the spooling device 100 according to an embodiment of the present invention, a sound wave reflecting portion is provided in the detected portion 8, and the detection portion 5 is a non-contact type position detection means and is a sound wave detection portion that detects sound waves from the sound wave reflecting portion provided in the detected portion 8.

[0037] The spooling device according to an embodiment of the present invention is a fishing reel. Also, the spooling device according to an embodiment of the present invention is a winch. Here, it should be noted that the spooling device according to an embodiment of the present invention is not limited to a fishing reel or a winch.

[0038] Next, a method for detecting the torque acting on the operation portion by the spooling device 100 will be described in detail. As described above, in the spooling device according to an embodiment of the present invention, when torque acts on the operation portion 1, the spool moves in the rotational direction with respect to the support shaft portion 2 according to the magnitude thereof. In an embodiment of the present invention, the restoring force generating portion (restoring force generating means) 4 is configured such that when the magnitude of the torque is 0.1 kgf·cm or less, θ = 0°, when it is 1.5 kgf·cm or more, θ = 10°, and between them, the moving amount θ changes proportionally with respect to the torque. Then, by the above-described cam mechanism, the straight member 7 moves in the axial direction according to the moving amount θ in the rotational direction of the handle 6. In an embodiment of the present invention, the cam groove 52 is formed such that the moving amount θ in the rotational direction and the moving amount X in the axial direction are proportional. As a result, the detected portion 8 provided on the straight member 7 moves by the moving amount X in the axial direction, so that the movement can be detected by the detection portion (detection means) 5. Therefore, based on the output of the detection portion 5, the torque acting on the handle can be calculated.

[0039] Even if the detected part 8 rotates by the operation part 1, if there is no change in the torque acting on the handle 6, the axial position of the detected part 8 does not change. Since the detected part 8 is symmetric with respect to the rotation direction, there is no change in the signal obtained from the detection part 5. Therefore, the torque acting on the handle 6 can be stably detected regardless of the rotational position of the support shaft part 2. In addition, in order that the output of the detection part 5 does not change due to the axial play of the support shaft part 2, the following methods may be adopted: making the axial play of the support shaft part 2 small, axially shifting it by a spring or the like, setting the axially movable amount x to be sufficiently larger than the play amount and the assembly error, etc.

[0040] The dimensions, materials, and arrangements of each component described in this specification are not limited to those explicitly described in the embodiments, and each of these components can be deformed to have any dimensions, materials, and arrangements that can be included in the scope of the present invention. Also, 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.

Explanation of Reference Numerals

[0041] 1 Operation part 2 Support shaft part (shaft part) 3 Regulation part (rotation regulation part) 4 Restoring force generation part (restoring force generation means) 5 Detection part 6 Handle 7 Rectilinear member 8 Detected part 9 Nut 11 Collar 12 Bearing 13 Support member 14 Spring washer 15 Washer 16 Recess 17 Bearing 18 Reel housing 19 Drive gear unit 23 Follower pin 52 Cam groove 10 Conversion mechanism 100 Coiling device

Claims

1. A fishing line winding device comprising: a spool capable of winding a fishing line; an operating portion for performing a winding operation on the spool; a support shaft portion rotatably supporting the operating portion; a restoring force generating portion for generating a restoring force between the support shaft portion and the operating portion; a regulating portion for regulating the rotational movement amount of the operating portion; a detected portion movable in the axial direction of the support shaft portion; a conversion mechanism for converting the movement in the rotational direction of the operating portion and transmitting it to the detected portion; and a detection portion for detecting the amount of movement in the axial direction of the detected portion caused by the movement in the rotational direction of the operating portion.

2. The fishing line winding device according to claim 1, wherein the restoring force generating portion is a spring member.

3. The fishing line winding device according to claim 1, wherein the conversion mechanism is a cam structure or a screw structure.

4. The fishing line winding device according to claim 1, wherein the detection portion is a non-contact type position detection means, and is composed of a light emitting portion for projecting light onto the detected portion and a light receiving portion for receiving the light from the light emitting portion.

5. A permanent magnet is provided on the detected portion. The fishing line winding device according to claim 1, wherein the detection portion is a non-contact type position detection means, and is a magnetic detection portion for detecting the magnetism of the permanent magnet provided on the detected portion.

6. A sound wave reflecting portion is provided on the detected portion. The fishing line winding device according to claim 1, wherein the detection portion is a non-contact type position detection means, and is a sound wave detection portion for detecting the sound wave from the sound wave reflecting portion provided on the detected portion.

7. The fishing line winding device according to any one of claims 1 to 6 is a fishing reel, a fishing reel.

8. The fishing line winding device according to any one of claims 1 to 6 is a winch, a winch.

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