JP7745530B2 - Joint for landing net - Google Patents

Description

The present invention relates to a landing net carried when fishing, and more specifically to a landing net joint used to connect the net part and the handle.

Landing nets are used to reel in caught fish when fishing from breakwaters, reefs, boats, mountain streams, etc. Such landing nets have a rod-shaped handle and a net attached to the end of the handle, with the net and handle connected by a landing net joint.

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 pivoting 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 pivoting part is held so that it can pivot a fixed angle (approximately 180°) relative to the base, and by operating an operating member on the base side, the pivoting part can be rotated to lock the net in its usable state (the net part is deployed linearly relative to the handle) or in its folded state (the net part is overlapping the handle).

The base of the landing net joint disclosed in Non-Patent Document 1 is provided with a ring-shaped operating member that bulges out in the radial direction. By pulling this operating member in the axial direction against the biasing force, the locked state of the net portion can be released and the net portion can be rotated from the usage state to the folded state.

https://www.daiwa.com/jp/fishing/item/terminal_tackle/lure_te/FLjoint/index.html

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, anglers may stand in the water and hold the landing net on their vest (held against their back). While holding the landing net on their vest, the angler may fold the net portion, and when a fish is caught, they may 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 against their back again.

With conventional configurations, it is necessary to grasp the base along with the tip of the handle and slide the operating member in the axial direction, leaving room for improvement in the ease of switching operations. In other words, to grasp the tip of the handle and slide the operating member attached to the base in the axial direction, it is necessary to grip the handle tightly or to press the base edge of the handle against the handle to secure it, and then slide the operating member. With this type of operation, the force from the fingers is not transmitted sufficiently 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.

The present invention was developed in response to the above-mentioned problems, and aims to provide a landing net joint that allows the net section to be easily switched between the use state and the folded state.

To achieve the above-mentioned objectives, the landing net joint of the present invention is attached between the net section and the handle and is capable of switching the net section between a use state and a folded state relative to the handle. It comprises a base section with a first joint attached to the tip of the handle, a rotating section that is rotatably held relative to the base and has a second joint attached to the frame of the net section, and an operating member attached to the base and locks the rotating section at least in the use state and unlocks the rotating section to make it rotatable. The operating member protrudes radially from the surface of the base and is attached circumferentially rotatable, and has three or more protrusions spaced circumferentially apart. The lock on the rotating section can be released by rotating the protrusions circumferentially.

The landing net joint configured as described above allows the net section, which is locked in its usage state, to be rotated relative to the base and placed in a folded state by rotating the operating member. The operating member protrudes radially from the surface of the base and has three or more protrusions spaced circumferentially, making it easy for the fingers of the hand holding the handle (mainly the thumb, index finger, and middle finger) to slip 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, making it easy to unlock the rotating section.

The present invention provides a landing net joint that allows the net portion to be easily switched between an in-use state and a folded state.

1 is a diagram showing an embodiment of a landing net joint according to the present invention attached to a landing net. 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. FIG. 2 is a perspective view showing the overall configuration of a landing net joint. FIG. 3 is a cross-sectional view showing the internal structure of a landing net joint. (a) is a plan view of a landing net joint, and (b) is a view from the handle side. 10A to 10D are diagrams showing the steps for switching the net part attached to the landing net joint from the use state to the folded state.

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 be left attached between the handle 100 and the net section 200, or it may be attached to the net section side or the handle side.

The handle 100 is tubular and includes a base section (tubular body) 101 and multiple sections that are stored in the base section 101 in a sequential telescopic fashion, with no restrictions on the number of sections or telescopic structure (the base section 101 may not have any sections inside). Furthermore, such a handle 100 can be manufactured and sold separately as a handle for a tama.

The handle 100 and the joints housed inside the handle are preferably constructed as tubular bodies made of fiber-reinforced resin to reduce weight. For example, a tubular body can be constructed by winding a fiber-reinforced resin prepreg, made by impregnating reinforcing fibers (mainly carbon fiber or glass fiber) with a thermosetting synthetic resin such as epoxy resin, around a core, heating it, and then removing the core, according to standard methods. A first connecting portion 110 is provided at the tip of the handle 100, and is designed to connect to the first fitting 10A of the joint 10. In this embodiment, the first connecting portion 110 is constructed as a female thread portion (see Figure 3) formed axially at the tip of the handle 100.

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. The second connecting part 210 in this embodiment 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.

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. 2 to 5. FIG.

The joint 10 has the function of switching the net section 200 from the use state (see Figure 2(a)) in which it can be used to catch fish relative to the handle 100 to a folded state (see Figure 2(b)) in which the net section 200 is rotated approximately 180 degrees from this use state toward the handle 100. Specifically, the joint 10 is configured to include a base 20 with the first joint 10A attached to one end, and a rotating section 50 with the second joint 10B attached to the other end, which is rotatably held relative to the base 20. The first connecting section 110 of the handle 100 and the second connecting section 210 of the net section 200 are detachably attached to each of the joints 10A and 10B, respectively.

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

The rotating part 50 has a cylindrical part 51 that protrudes in the axial direction, and a female thread that constitutes the second joint 10B is formed on the inner surface of the cylindrical part 51. The second connecting part (male thread part) 210 of the mesh part 200 is threadedly connected to this second joint 10B. Even when threadedly 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.

A male thread portion 52 is formed on the outer peripheral surface of the cylindrical portion 51. With the second connecting portion (male thread portion) 210 of the mesh portion 200 threaded onto the second joint (female thread portion) 10B, the joint 10 can be aligned and fixed to the mesh portion 200 by tightening the tightening nut 53 that threads onto the male thread portion 52. In this case, in this embodiment, the tightening nut 53 is configured as double nuts 53A and 53B to prevent loosening. In other words, the first nut 53A is tightened with the frame 201 of the mesh portion 200 aligned with the pivoting portion 50, and then the second nut 53B is tightened in that state, preventing loosening of the first nut 53A.

As described above, the joint 10 has the function of switching the net portion 200 between a usable state (see Figure 2(a)) in which fish can be caught and a folded state (see Figure 2(b)) by rotating it approximately 180 degrees from this usable state. A rotational structure that enables such rotation can be constructed, for example, by providing a substantially U-shaped stand 24 integrally with the net portion side of the base 20, and then supporting the base end 54a of an arm 54, which is bent into a substantially L shape and is integral with the tubular portion 51, in the recess 24a of the stand 24 so that it can rotate about the support portion 54b. In other words, by inserting the base end 54a of the arm 54 into the recess 24a of the stand 24 and attaching a support portion 54b, such as a pin, at its center, it becomes possible to rotatably hold the tubular portion 51 (net portion 200) relative to the base 20.

The joint 10 includes an operating member for rotating the net portion 200, and a locking mechanism for locking the net portion 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 portion 200 in the folded state shown in Fig. 2(b).
The operating member and locking mechanism that perform such functions will be described below.

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 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.

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

A biasing member 28, such as a coil spring, is disposed within the internal space of the cylindrical portion 21. One end of the biasing member 28 is fixed to the bottom 21a of the cylindrical portion 21, and the other end is fixed to a sliding member 30 that slides in the axial direction. The sliding member 30 is axially slidable within the inner body 25A, and an engaging member 31 is provided at its tip end so as to protrude toward the base end 54a of the arm portion 54.

As shown in FIG. 4, the engaging member 31 is adapted to engage with a pair of opposing recesses 54c, 54d formed on the support portion 54b of the base end portion 54a by the biasing force of the biasing member 28. That is, the recess 54c functions to fix the usage state of the net portion 200 when the engaging member 31 engages with it, and the recess 54d functions to fix the folded state of the net portion 200 when the engaging member 31 engages with it when the rotating portion 50 rotates approximately 180° counterclockwise around the support portion 54b from the state shown in FIG. 4.

The sliding member 30 is provided with a guide pin 35 that faces in a direction perpendicular to the axial direction. The guide pin 35 fits into a guide groove 25a formed in the outer body 25B of the tubular main body 25. The guide groove 25a is formed on the surface of the outer body 25B so as to be inclined with respect to the axial direction. When the outer body 25B is rotated, the guide pin 35 is subjected to a force that moves it in the axial direction by the guide groove 25a.

As shown in Figures 3 and 5, the guide pin 35 is located at one end of the guide groove 25a. In this state, the engaging member 31 and the recess 54c (or recess 54d) are engaged, and the rotating part 50 is locked. When the outer body 25B is rotated while the net part 200 is in use as shown in Figures 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).

Even when the mesh section 200 is folded, the engagement member 31 and the recess 54d remain engaged, resulting in a locked state. However, even in this locked state, the engagement between the engagement member 31 and the recess 54d can be released by rotating the outer body 25B.

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.

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

As described above, by providing three operating members (protrusions 40a) for releasing the locked state at intervals along the circumferential direction, it becomes easier to insert the fingers (thumb, index finger, and middle finger) of one hand gripping the handle 100 between the protrusions. Rotating the handle in this manner in the circumferential direction generates a rotational force on the protrusions 40a, making it easier to rotate the outer body 25B. In other words, unlike conventional methods, the base 20 does not slide axially to release the locked state, so slippage does not occur, and there is no need to grip the handle 100 tightly and apply strong force in the axial direction, making it easier to release the locked state.

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 to make it easier for fingers to insert or to make it easier to grip with inserted fingers. Furthermore, it is preferable to provide them 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 held.

Furthermore, it is preferable that the protrusions 40a are provided along the entire axial length of the base 20 (outer body 25B). In other words, since the outer body 25B is rotated to release the locked state, providing the protrusions 40a that perform this rotation along the entire axial length of the outer body 25B makes it easier to rotate.

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

Furthermore, since there is no need 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 to make the tip side of the protrusion 40a a gradually descending inclined portion 40b. In other words, by forming such an inclined portion 40b, it becomes even more difficult for the net 202 to get caught when the net part 200 is folded.

Next, referring to Figures 1 to 5 and Figures 6(a) to 6(d), an example of the procedure for switching the mesh portion 200 attached to the joint 10 from the use state to the folded state will be described.

In the use state shown in Figure 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 Figure 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.

With the engagement between the engagement member 31 and the recess 54c released, as shown in Figure 6(c), by rotating the frame 201 toward you or extending the handle 100 forward, the rotating part 50 (mesh part 200) will rotate as shown by the arrow, and the folding position will be achieved as shown in Figures 6(d) and 2(b). At this time, the engagement member 31 and the recess 54d will be engaged, and the folding position will be locked.

To return the device to the usable state in this folded position, the protrusion 40a is rotated in the same manner as described above, which disengages the engagement member 31 from the recess 54d and unlocks the folded state. Then, by rotating the frame 201 forward or pulling the handle 100 toward you, the net portion 200 rotates and the device can be returned to the usable state as shown in Figures 6(a) and 2(a).

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

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.Furthermore, 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.

1 Landing net 10 Landing net joint 20 Base 40 Operating member 40a Protrusion 50 Rotating part 100 Handle 200 Net part

Claims (5)

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. The landing net joint according to claim 1, characterized in that the protrusions are provided at equal intervals around the periphery of the base. A landing net joint as described in claim 1 or 2, characterized in that the protrusion is provided on the base over the entire axial length of the base. The landing net joint described in claim 3, characterized in that the protrusions are formed with a radial height in the range of 2 to 15 mm. The landing net joint described in claim 4, characterized in that the protrusion has an inclined portion that gradually descends toward the rotating part.