Joint for landing net

The landing net joint enables easy switching between use and folded states through a base, rotating part, and circumferentially spaced protrusions, addressing the difficulty of axial sliding in conventional joints.

JP7745530B2Active Publication Date: 2025-09-29DAIWA SEIKO CORPORATION
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Patent Information

Application Number
JP2022179267
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Filing Date
2022-11-09
Publication Date
2025-09-29
Estimated Expiration
2042-11-09

AI Technical Summary

Technical Problem

Conventional landing net joints require difficult and prone-to-slip axial sliding operations for switching between use and folded states, making it cumbersome to transition between these states during fishing.

Method used

A landing net joint with a base, rotating part, and an operating member featuring circumferentially spaced protrusions allows easy rotation and locking/unlocking by finger manipulation, eliminating the need for axial sliding.

Benefits of technology

Facilitates effortless switching between use and folded states by allowing finger-based rotational force transmission, reducing slippage and the need for firm grip, enhancing operational ease.

✦ Generated by Eureka AI based on patent content.

Smart Images

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Patent Text Reader

Abstract

To provide a joint for a landing net that allows easy switching of a net part between a use state and a folded state.SOLUTION: A joint 10 for a landing net includes: a base part 20 provided with a first joint 10A attached to the tip of a handle; a turning part 50 turnably held to the base part 20 and provided with a second joint 10B attached to the frame of a net part; and a projection 40a that is provided on the base part 20, locks the turning part 50 at least in use and unlocks the turning part to allow the turning part 50 to rotate. The projection 40a is mounted so as to be rotatable in a circumferential direction while projecting in a radial direction from a front face of the base part 20, and is provided at three or more positions at intervals in the circumferential direction, and the lock of the turning part 50 can be released by rotating the projection 40a in the circumferential direction.SELECTED DRAWING: Figure 3
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Description

[Technical Field]

[0001] The present invention relates to a landing net carried when fishing, and more particularly to a landing net joint used to connect a net part and a handle. [Background technology]

[0002] A landing net is used to capture fish that have been caught when fishing from a breakwater, reef, boat, mountain stream, etc. Such a landing net has a rod-shaped handle and a net part attached to the end of the handle, and the net part and handle are connected by a landing net joint.

[0003] As described in Non-Patent Document 1 (a website introducing Daiwa's FL joint), for example, a landing net joint comprises a base with a first joint at one end (the handle side) and a rotating part with a second joint at the other end (the net side). The first joint is attached to a first connecting part at the tip of the handle, and the second joint is attached to a second connecting part at the frame of the net. The rotating part is held so that it can rotate at a fixed angle (approximately 180°) relative to the base, and is configured so that the net can be locked in a use state (net part deployed linearly relative to the handle) or a folded state (net part overlapping the handle) by operating an operating member provided on the base side.

[0004] The base of the landing net joint disclosed in Non-Patent Document 1 is provided with a ring-shaped operating member that bulges radially, and by pulling this operating member in the axial direction against the biasing force, the locked state of the net part can be released and the net part can be rotated from the usage state to the folded state. [Prior art documents] [Patent documents]

[0005] [Non-Patent Document 1] https: / / www.daiwa.com / jp / fishing / item / terminal_tackle / lure_te / FLjoint / index.html Summary of the Invention [Problem to be solved by the invention]

[0006] The net portion described above may be switched between a use state and a folded state during actual fishing. For example, when fishing in a mountain stream, the angler may stand in the water and hold the landing net on a vest (held on the back). When holding the landing net on the vest, the angler may fold the net portion, and when a fish is caught, grab the handle and switch the net portion to the use state. After catching the fish, the net portion is switched from the use state to the folded state and held on the back again.

[0007] In the conventional configuration, it is necessary to grasp the base together with the tip of the handle and slide the operating member in the axial direction, which leaves room for improvement in the ease of switching operations. That is, in order to grip the tip of the handle and slide the operating member provided at the base in the axial direction, it is necessary to grip the handle tightly or to fix the base end edge of the handle against the handle and then slide the operating member. With this operating method, the force from the fingers is not sufficiently transmitted to the operating member, and the fingers tend to slip in the axial direction, leaving room for improvement in the ease of switching operations at a moment's notice.

[0008] The present invention has been made in response to the above-mentioned problems, and aims to provide a joint for a landing net that allows the net portion to be easily switched between an in-use state and a folded state. [Means for solving the problem]

[0009] In order to achieve the above-mentioned object, the landing net joint of the present invention is attached between the net part and the handle, and is capable of switching the net part between a use state and a folded state relative to the handle, and has a base part having a first joint attached to the tip of the handle, a rotating part that is rotatably held relative to the base and has a second joint attached to the frame of the net part, and an operating member that is attached to the base and locks the rotating part at least in the use state and unlocks the rotating part to make it rotatable, and the operating member protrudes radially from the surface of the base and is attached circumferentially rotatably, and has protrusions provided at three or more locations spaced circumferentially, and the lock of the rotating part can be released by rotating the protrusions circumferentially.

[0010] The landing net joint of the above configuration allows the net section, which is locked in the use state, to be rotated relative to the base section and placed in the folded state by rotating the operating member. The operating member has a structure in which protrusions protrude radially from the surface of the base section and are provided at three or more locations spaced circumferentially, making it easy to insert the fingers (mainly the thumb, index finger, and middle finger) of the hand gripping the handle between the protrusions (grasp the protrusions). Then, by rotating the operating member in the circumferential direction, the fingers come into contact with the protrusions, making it easier to transmit force in the rotational direction, and the locked state of the rotating section can be easily released. [Effects of the Invention]

[0011] According to the present invention, a joint for a landing net is provided that allows the net portion to be easily switched between a use state and a folded state. [Brief explanation of the drawings]

[0012] [Figure 1] 1 is a diagram showing an embodiment of a landing net joint according to the present invention attached to a landing net. [Figure 2] 10A and 10B are diagrams explaining the function of a landing net joint, where (a) is a diagram showing the state in use, (b) is a diagram showing the state in which it is folded, and (c) is a plan view of the state in use. [Figure 3] FIG. 2 is a perspective view showing the overall configuration of a landing net joint. [Figure 4] FIG. 3 is a cross-sectional view showing the internal structure of a landing net joint. [Figure 5] (a) is a plan view of the landing net joint, and (b) is a view from the handle side. [Figure 6] 10(a) to 10(d) are diagrams showing the steps for switching the net part attached to the landing net joint from the use state to the folded state. DETAILED DESCRIPTION OF THE INVENTION

[0013] Hereinafter, one embodiment of a landing net joint according to the present invention will be described with reference to FIGS. 1 to 5. FIG. Figure 1 shows an example of a landing net equipped with an embodiment of a landing net joint according to the present invention. The landing net 1 of this embodiment comprises a handle 100 and a net section 200 attached to the tip of the handle 100, with a landing net joint (hereinafter referred to as the joint) 10 attached between the handle 100 and the net section 200. This joint 10 may remain attached between the handle 100 and the net section 200, or it may be attached to the net section side or the handle side.

[0014] The handle 100 is tubular and includes a base section (tubular body) 101 and a plurality of sections that are stored in the base section 101 in a sequential telescopic manner, with no limitations on the number of sections or telescopic structure (the base section 101 may not have any sections inside). Also, such a handle 100 can be manufactured and sold separately as a handle for a fishing reel.

[0015] The handle 100 and the joint housed inside the handle are preferably constructed as a tubular body made of fiber-reinforced resin to reduce weight. For example, the tubular body can be constructed by winding a fiber-reinforced resin prepreg, which is made by impregnating reinforcing fibers (mainly carbon fiber or glass fiber) with a thermosetting synthetic resin such as epoxy resin, around a core bar, subjecting it to a heating process, and then removing the core, according to a standard method. The tip of the handle 100 is provided with a first connecting portion 110, which is adapted to be connected to the first fitting 10A of the joint 10. In this embodiment, the first connecting portion 110 is constructed as a female screw portion (see FIG. 3) formed along the axial direction at the tip of the handle 100.

[0016] The mesh part 200 is configured by attaching a knitted mesh 202 to a circular frame 201. A second connecting part 210 is provided on a part of the frame 201, and is configured to be connected to the second joint 10B of the joint 10. In this embodiment, the second connecting part 210 is configured by a male screw part (see FIG. 3) protruding from a block-shaped fixing member 212 that is fixed to the frame 201. There are no limitations on the size, shape, or material of the frame 201 and net 202, and like the handle 100, the net portion 200 can be manufactured and sold separately.

[0017] A joint 10 is attached between the net portion 200 and the handle 100. The configuration of the joint 10 of this embodiment will be described below with reference to FIGS.

[0018] The joint 10 has the function of switching the net part 200 from the use state (see FIG. 2(a)) in which the net part 200 can be operated to catch fish relative to the handle 100 to a folded state (see FIG. 2(b)) in which the net part 200 is rotated approximately 180° from this use state toward the handle 100. Specifically, the joint 10 is configured to have a base 20 on one end of which the first joint 10A is provided, and a rotating part 50 on the other end of which the second joint 10B is provided and is rotatably held relative to the base 20. The first connecting part 110 of the handle 100 and the second connecting part 210 of the net part 200 are detachably attached to each of the joints 10A and 10B, respectively.

[0019] The base 20 has a cylindrical portion 21 that protrudes in the axial direction, and a male screw portion that constitutes the first joint 10A is formed on the outer peripheral surface of the cylindrical portion 21. The first connecting portion (female screw portion) 110 of the handle 100 is threadedly connected to this first joint 10A. When threading and connecting, it is preferable to interpose an O-ring (not shown) between the end face of the handle 100 and the base 20, which makes it possible to prevent the handle 100 from loosening during use.

[0020] The rotating part 50 has a cylindrical part 51 that protrudes in the axial direction, and a female screw part that constitutes the second joint 10B is formed on the inner peripheral surface of the cylindrical part 51. The second connecting part (male screw part) 210 of the mesh part 200 is screwed and connected to this second joint 10B. When screwing and connecting, it is preferable to interpose an O-ring (not shown) between the second connecting part and the fixing member 212, which makes it possible to prevent the tightening nut 53 from loosening during use.

[0021] A male screw portion 52 is formed on the outer peripheral surface of the cylindrical portion 51, and with the second connecting portion (male screw portion) 210 of the mesh portion 200 screwed onto the second joint (female screw portion) 10B, by tightening a tightening nut 53 screwed onto the male screw portion 52, it is possible to align and fix the joint 10 to the mesh portion 200. In this case, in this embodiment, the tightening nut 53 is configured as double nuts 53A, 53B so as not to loosen. That is, with the frame 201 of the mesh portion 200 aligned with the rotating portion 50, the first nut 53A is tightened, and in that state the second nut 53B is tightened, thereby preventing the first nut 53A from loosening.

[0022] As described above, the joint 10 has the function of switching the net portion 200 between a use state (see FIG. 2(a)) in which fish can be caught and a folded state (see FIG. 2(b)) by rotating the net portion 200 by approximately 180° from the use state. A rotation structure that enables such rotation can be configured, for example, by providing a substantially U-shaped stand 24 integrally with the net portion side of the base 20, and supporting the base end 54a of an arm portion 54 that is provided integrally with the tubular portion 51 and bent into a substantially L shape in the recess 24a of the stand 24 so that the arm can rotate about a support portion 54b. That is, by inserting the base end 54a of the arm portion 54 into the recess 24a of the stand 24 and attaching a support portion 54b such as a pin to the center of the base end 54a, the tubular portion 51 (net portion 200) can be rotatably held relative to the base 20.

[0023] The joint 10 includes an operating member for rotating the net part 200, and a locking mechanism for locking the net part 200 in the use state shown in Fig. 2(a) in association with the operation of the operating member. Note that the locking mechanism of this embodiment is configured to be able to lock the net part 200 in the folded state shown in Fig. 2(b). The operating member and locking mechanism that perform such functions will be described below.

[0024] The base 20 includes a tubular main body 25 that exposes and fixes the first joint 10A of the cylindrical portion 21. The tubular main body of this embodiment has a double structure that overlaps in the radial direction, and includes an inner body 25A and an outer body 25B that are both integrally formed into a generally tubular shape from a metal such as aluminum. The inner body 25A holds a sliding member 30 (described later) so that the sliding member 30 can move axially, and the outer body 25B is a part that is rotated by an operating member (described later). It is preferable to form a gap between the inner body 25A and the outer body 25B and to insert a resin collar 26 into this gap. Inserting such a collar 26 provides a buffering effect between the inner body 25A and the outer body 25B and prevents salt jamming and the like.

[0025] The cylindrical portion 21 having the first joint 10A is positioned and fixed to the inner body 25A by a fixing member (a set screw) 27a. The inner body 25A and the outer body 25B are positioned and fixed to each other by a fixing member (a set screw) 27b with the collar 26 interposed therebetween.

[0026] A biasing member 28 such as a coil spring is disposed in the internal space of the cylindrical portion 21, one end of which is fixed to the bottom 21a of the cylindrical portion 21 and the other end of which is fixed to a sliding member 30 that slides in the axial direction. The sliding member 30 is axially slidable inside the inner body 25A, and an engaging member 31 is provided on the tip side thereof so as to protrude toward the base end 54a of the arm portion 54.

[0027] 4, the engaging member 31 is adapted to engage with a pair of recesses 54c, 54d formed opposite to the support portion 54b of the base end portion 54a by the biasing force of the biasing member 28. That is, the recess 54c has a function of fixing the usage state of the net portion 200 by the engagement of the engaging member 31, and the recess 54d has a function of fixing the folded state of the net portion 200 by the engagement of the engaging member 31 when the rotating portion 50 is rotated approximately 180° counterclockwise around the support portion 54b from the state shown in FIG.

[0028] The sliding member 30 is provided with a guide pin 35 oriented in a direction perpendicular to the axial direction, and the guide pin 35 is fitted into a guide groove 25a formed in the outer body 25B of the tubular main body 25. The guide groove 25a is formed in the surface of the outer body 25B so as to be inclined with respect to the axial direction, and when the outer body 25B is rotated, the guide pin 35 is subjected to a force by the guide groove 25a to move in the axial direction.

[0029] 3 and 5, the guide pin 35 is located at one end of the guide groove 25a, and in this state, the engaging member 31 and the recess 54c (or recess 54d) are engaged, and the rotating part 50 is in a locked state. When the outer body 25B is rotated in the state in which the net part 200 is in use as shown in FIGS. 3 to 5, the sliding member 30 is driven toward the handle 100 against the biasing force of the biasing member 28 via the guide pin 35, thereby releasing the engagement between the engaging member 31 and the recess 54c (releasing the locked state of the rotating part 50).

[0030] Even when the mesh portion 200 is folded, the engaging member 31 and the recess 54d are engaged, resulting in a locked state. However, even in this locked state, the engaging member 31 and the recess 54d can be released from the engaged state by rotating the outer body 25B.

[0031] The unlocking operation is performed by rotating an operating member provided on the base 20. The configuration of the operating member of this embodiment will be described below.

[0032] The operating member is provided on the outer body 25B, which is a component of the base 20, and has the function of locking the rotating unit 50 in the use state and the folded state, and also of unlocking the rotating unit 50 to make the rotating unit 50 rotatable. The operating member 40 of this embodiment is attached so as to protrude radially from the surface of the base 20 and be rotatable in the circumferential direction, and more specifically, has three protrusions 40a that protrude radially from the surface of the outer body 25B, which is a component of the base 20, and are spaced apart in the circumferential direction. In other words, the lock of the rotating unit 50 can be released by rotating any of the protrusions 40a in the circumferential direction.

[0033] As described above, by providing three operating members (projections 40a) for releasing the locked state at intervals in the circumferential direction, it becomes easier to insert the fingers (thumb, index finger, and middle finger) of one hand gripping handle 100 between the projections, and by rotating the handle in the circumferential direction, a rotational force acts on projections 40a, making it easier to rotate outer body 25B. In other words, unlike conventional devices, base 20 does not slide axially to release the locked state, so slippage does not occur, and there is no need to firmly grip handle 100 and operate it axially with great force, making it easy to release the locked state.

[0034] The protrusions may be provided in three or more locations on the base 20, but it is preferable to form them in three or four locations so that fingers can easily be inserted or so that the handle can be easily gripped with inserted fingers. Also, it is preferable to provide the protrusions at equal intervals around the circumference (e.g., 120° intervals for three locations, 90° intervals for four locations) so that they are not affected by the grip state of the handle 100 or the direction in which it is gripped.

[0035] Furthermore, it is preferable that the protrusions 40a are provided over the entire axial length of the base 20 (outer body 25B). That is, since the outer body 25B is rotated to release the locked state, the rotation can be easily performed by providing the protrusions 40a, which perform the rotation, over the entire axial length of the outer body 25B.

[0036] Furthermore, if the protrusions 40a are formed too high, they may interfere with and get caught on the net 202 when the net part 200 is folded, and in the state shown in Fig. 2(b), they may come into contact with the tightening nut 53, so it is preferable to form the maximum height H to be 15 mm or less. However, if they are formed too low, it becomes difficult to hook a finger on them and rotate them (it becomes difficult to transmit force), so it is preferable to form them to be 2 mm or more, and more preferably to form them in the range of 5 mm to 10 mm.

[0037] Furthermore, since it is not necessary to transmit force by pressing the pad of the finger on the handle side of the protrusion 40a and strongly pressing the finger on the rotating part side, it is preferable that the tip side of the protrusion 40a has a gradually descending inclined portion 40b. In other words, by forming such an inclined portion 40b, it becomes possible to make it even more difficult for the net 202 to get caught when the net part 200 is folded.

[0038] Next, with reference to FIGS. 1 to 5 and also FIGS. 6(a) to 6(d), an example of a procedure for switching the net part 200 attached to the joint 10 from the use state to the folded state will be described.

[0039] In the use state shown in Fig. 6(a), by extending the fingers of the hand gripping the handle 100 toward the net, the fingers can easily fit between the protrusions 40a or pinch the protrusions 40a. Then, as shown in Fig. 6(b), by rotating the fingers in the circumferential direction, a rotational force acts on the protrusions 40a, causing the outer body 25B to rotate. At this time, the sliding member 30 is driven toward the handle 100 against the biasing force of the biasing member 28 via the guide pin 35, thereby releasing the engagement (locked state) between the engaging member 31 and the recess 54c.

[0040] With the engagement between the engaging member 31 and the recess 54c released, as shown in Fig. 6(c), by rotating the frame 201 toward you or by extending the handle 100 forward, the rotating part 50 (net part 200) will rotate as shown by the arrow, and the folding state can be achieved as shown in Fig. 6(d) and Fig. 2(b). At this time, the engaging member 31 and the recess 54d will be engaged, and the folding state will be locked.

[0041] To return the folding net to the usable state, the projection 40a is rotated in the same manner as described above, thereby disengaging the engaging member 31 from the recess 54d and unlocking the folded state. Subsequently, the frame 201 is rotated forward or the handle 100 is pulled toward the user, causing the net 200 to rotate and return to the usable state as shown in Figures 6(a) and 2(a).

[0042] In this way, the locked state of the mesh part 200 can be easily released by simply pressing a finger against the protrusion 40a provided on the base part 20 and rotating it.

[0043] 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 modified in various ways. For example, the above-described protrusions 40a do not have to be configured to have the same shape, and the thickness and shape of the protrusions can be modified as appropriate. Also, the protrusions may not be arranged at equal intervals in the circumferential direction. Furthermore, the present invention is not limited to the configuration of the above-described embodiment except for the configuration of the operating member (protrusion). For example, the fixing method for the handle 100 and the net part 200, the configuration of the locking mechanism that locks the net part 200, the driving method of the sliding member 30, etc. can be modified as appropriate. [Explanation of symbols]

[0044] 1 jade net 10 Joint for landing net 20 base 40 Operating member 40a protrusion 50 Rotating part 100 patterns 200 Amibe

Claims

1. A landing net joint that is attached between a net part and a handle and that can switch the net part between a use state and a folded state relative to the handle, a base portion provided with a first joint attached to the tip of the handle; a rotating part that is rotatably held relative to the base part and has a second joint that is attached to a frame of the mesh part; an operating member provided on the base portion, which locks the rotating portion at least in a use state and unlocks the rotating portion to make the rotating portion rotatable; It has the operating member is attached to the base so as to protrude radially from the surface of the base and be rotatable in the circumferential direction, and has protrusions provided at three or more locations spaced apart in the circumferential direction, A landing net joint characterized in that the lock on the rotating part can be released by rotating the protrusion in a circumferential direction.

2. 2. The landing net joint according to claim 1, wherein the projections are provided at equal intervals in the circumferential direction of the base.

3. 3. The landing net joint according to claim 1, wherein the protrusion is provided on the base over the entire axial length of the base.

4. The landing net joint according to claim 3, characterized in that the protrusions are formed with a radial height in the range of 2 to 15 mm.

5. 5. A landing net joint according to claim 4, wherein the projection has an inclined portion that gradually descends toward the rotating portion.

Citation Information

Patent Citations

  • Braking power adjustment device for reel for fishing

    JP1998098993A

  • Spoon net

    JP2001078622A

  • Joint of net for fishing

    JP2006115819A

  • Folding support for tamo net and tamo net provided with the same

    JP3090684U

  • Dip net provided with lockable and foldable handle

    US20200404893A1