Joint members and dip nets

Abstract

To provide a joint member for fishing equipment and a landing net that is easy to align, easy to attach and detach, and less prone to loosening or rattling in the axial and circumferential directions. [Solution] A joint member for detachably attaching a fishing tool and the tip of a handle, comprising a rod-shaped first member fixed to one of the fishing tool and the tip, and a cylindrical second member fixed to the other, wherein the first member is transitionable in the circumferential direction by rotating relative to the second member to a first position in which it can be inserted into and removed from the second member in the longitudinal direction, and a second position in which insertion and removal in the longitudinal direction relative to the second member is restricted, and the second member has a locking member that can restrict the rotation of the first member in the circumferential direction when the first member is in the second position.

Description

TECHNICAL FIELD

[0001] The present invention relates to a joint member and a landing net. BACKGROUND ART

[0002] Conventionally, landing nets used for fishing are relatively bulky, and therefore have a structure that can be disassembled into a net frame, a handle, and a joint member that detachably connects them, in order to improve portability. As such a joint member, one that allows attaching and detaching the net frame with one touch is known (for example, Patent Document 1). PRIOR ART DOCUMENTS PATENT DOCUMENTS

[0003] Patent Document 1 Japanese Patent No. 3798518 SUMMARY OF THE INVENTION PROBLEM TO BE SOLVED BY THE INVENTION

[0004] However, in conventional landing nets, positioning in the rotational direction between the net frame, the handle, or the folding direction of the joint member cannot be performed accurately, and when the direction is aligned, the tightened screw may loosen. In addition, an appropriate screw length is required to withstand a load, which takes time for attachment and detachment. Further, there is a risk that the threaded engagement loosens during use, and there is room for improvement in this respect.

[0005] The present invention has been made in consideration of such circumstances, and an object of the present invention is to provide a joint member for fishing gear and a landing net that can be easily aligned, easily attached and detached, and are less likely to cause loosening or rattling in the axial direction and circumferential direction. MEANS FOR SOLVING THE PROBLEM

[0006] (1) Embodiment 1 of the joint member according to the present invention is a joint member for detachably attaching a fishing tool and the tip of a handle, comprising a rod-shaped first member fixed to one of the fishing tool and the tip, and a cylindrical second member fixed to the other, wherein the first member is transitionable in the circumferential direction by rotating relative to the second member to a first position in which it can be inserted into and removed from the second member in the longitudinal direction, and a second position in which insertion and removal in the longitudinal direction relative to the second member is restricted, and the second member is characterized in that when the first member is in the second position, it has a locking member that can restrict the rotation of the first member in the circumferential direction.

[0007] According to Embodiment 1 of the joint member of the present invention, by rotating the first member circumferentially relative to the second member, the longitudinal insertion and removal of the first member from the second member is restricted, so that the first member and the second member can be fixed simply by rotating the first member circumferentially. Furthermore, since the second member has a locking member that can restrict the circumferential rotation of the first member, the first member and the second member can be stably fixed together.

[0008] (2) In aspect 2 of the present invention, in the joint member of aspect 1, the first member preferably has a shaft portion on which an engaging portion is formed on a part of its outer circumferential surface, and the second member preferably has a cylindrical portion on which an engaged portion is formed on a part of its inner circumferential surface.

[0009] In this case, since the engaging portion and the engaged portion engage when the first member is in the second position, the longitudinal insertion and removal of the first member from the second member can be more effectively restricted.

[0010] (3) A third aspect of the present invention is a joint member of the second aspect, wherein the engaging portion is a male thread and the engaged portion is a female thread.

[0011] In this case, the first member and the second member can be firmly fixed together.

[0012] (4) A fourth aspect of the present invention is a joint member of the second aspect, wherein the locking member is switchable between an engagement position in which it can engage with the first member and a release position in which it is released from engagement with the first member by moving back and forth in a first direction, and the second member preferably has a biasing member that biases the locking member toward the first member in the first direction.

[0013] In this case, since the second member has a biasing member that biases the locking member toward the first member in the first direction, the circumferential rotation of the first member relative to the second member is restricted simply by rotating the first member to the second position. Therefore, the first member and the second member can be stably fixed together simply by rotating the first member relative to the second member.

[0014] (5) In embodiment 5 of the present invention, in the joint member of embodiment 4, the first direction is preferably the longitudinal direction.

[0015] In this case, the biasing member biases the locking member in the longitudinal direction. Therefore, the direction in which the biasing member biases the locking member and the direction in which the first member is inserted into the second member do not intersect, thus preventing the first member and the locking member from getting caught when the first member is inserted into the second member.

[0016] (6) Aspect 6 of the present invention is a joint member of aspect 4, wherein the second member preferably has an operating part that moves the locking member forward and backward in the longitudinal direction.

[0017] In this case, since the second member has an operating part that moves the locking member forward and backward in the first direction, it is easy to release the engagement between the first member and the biasing member, and easy to release the connection between the first member and the second member.

[0018] (7) In aspect 7 of the present invention, in the joint member of aspect 6, it is preferable that the cylindrical portion rotates in the circumferential direction relative to the first member by rotating the operating portion in the circumferential direction relative to the first member.

[0019] In this case, rotating the operating part causes the cylindrical part to rotate circumferentially with respect to the first member, making it easier to transition the first member between the first and second positions and to release the connection between the first and second members.

[0020] (8) Aspect 8 of the present invention is a joint member of aspect 1, wherein the first member has a shaft portion and a projection portion that protrudes radially outward from the outer surface of the shaft portion, and the second member has a cylindrical portion into which the shaft portion is inserted and removed, a restricting portion that protrudes radially inward from the inner surface of the cylindrical portion and restricts the movement of the projection portion when the first member is in the second position in the removal direction, which is the direction in which the shaft portion is removed from the cylindrical portion in the longitudinal direction, and a biasing member that biases the shaft portion in the removal direction, wherein the projection portion has a first inclined surface formed on the side facing the removal direction that inclins in the removal direction as it moves in one of the second directions in the circumferential direction, and the locking member has a second inclined surface formed on the side facing the insertion direction, which is the direction opposite to the removal direction, that inclins in the removal direction as it moves in the second direction.

[0021] In this case, a first inclined surface is formed on the side of the protruding portion facing the restricting portion, and a second inclined surface is formed on the side of the restricting portion facing the protruding portion. Therefore, when the first member is in the second position, the first inclined surface and the second inclined surface face each other. Because the inclined surfaces face each other, the movement of the first member relative to the second member is further restricted. As a result, the connection between the first member and the second member is stabilized, and the first member is prevented from swaying relative to the second member.

[0022] (9) In aspect 9 of the present invention, in the joint member of aspect 8, it is preferable that the protruding portion is provided in two portions on the outer surface with an interval in the circumferential direction, and the restricting portion is provided in two portions on the inner surface with an interval in the circumferential direction.

[0023] In this case, the presence of two protruding portions and two restricting portions further stabilizes the connection between the first and second members.

[0024] (10) In aspect 10 of the present invention, in the joint member according to aspect 8, it is preferable that an inclination angle of the second inclined surface with respect to the second direction is equal to an inclination angle of the first inclined surface with respect to the second direction.

[0025] In this case, since the inclination angle of the first inclined surface is equal to the inclination angle of the second inclined surface, the connection between the first member and the second member is further stabilized.

[0026] (11) In aspect 11 of the present invention, in the joint member according to aspect 8, the first member has a fixing member that fixes one of the fishing tackle and the tip end portion to the shaft portion, the second member has a cylindrical cover portion that covers the cylindrical portion, the fixing member is fixed to an end portion of the shaft portion on the pull-out direction side, and has an abutment surface located radially outward of the shaft portion when viewed from the longitudinal direction, the cover portion is biased in the pull-out direction by the biasing member, and it is preferable that the cover portion is biased to a position where the end portion on the pull-out direction side abuts against the abutment surface.

[0027] In this case, since the cover portion is biased by the biasing member to a position where it abuts against the abutment surface of the first member, the second inclined surface is further pressed against the first inclined surface, and movement of the first member relative to the second member is further restricted.

[0028] (12) In aspect 12 of the present invention, in the joint member according to aspect 11, it is preferable that the locking member and the cover portion are formed integrally.

[0029] In this case, the number of parts can be reduced, and productivity can be improved.

[0030] (13) Aspect 13 of a landing net according to the present invention may be characterized by comprising: the joint member according to any one of aspects 1 to 12; a net frame to which the first member is fixed; and the handle having the second member fixed to the tip end portion.

[0031] In this case, a dip net having the effects described above can be provided. [Effects of the Invention]

[0032] According to the present invention, it is possible to provide a joint member for fishing equipment and a landing net that is easy to align, easy to attach and detach, and less prone to loosening or rattling in the axial and circumferential directions. [Brief explanation of the drawing]

[0033] [Figure 1] This is a plan view showing a net according to the first embodiment. [Figure 2] This is an exploded perspective view showing the same net. [Figure 3] This is a perspective view showing a joint member according to the first embodiment. [Figure 4] This is a perspective view showing a connecting jig according to the first embodiment. [Figure 5] This is a perspective view showing the connecting jig. [Figure 6] This is a perspective view showing the biasing member. [Figure 7] This is a perspective view showing an example of how the joint member is used. [Figure 8] This is a perspective view showing an example of how the joint member is used. [Figure 9] This is a perspective view showing an example of how the joint member is used. [Figure 10] This is a perspective view showing a joint member according to the second embodiment. [Figure 11] This is a perspective view showing a pin joint according to the second embodiment. [Figure 12] This is a perspective view showing a connecting jig according to the second embodiment. [Figure 13] This is a front view showing the joint member. [Figure 14] This is a cross-sectional view of the joint member, showing a cross-section cut along the longitudinal direction. [Figure 15] This is a plan view showing a fishing net according to the third embodiment. [Figure 16]This is a side view showing a joint member according to the third embodiment. [Figure 17] This is a side view showing the joint member. [Figure 18] This is a side view showing a pin joint according to the third embodiment. [Figure 19] This is a side view showing the pin joint. [Figure 20] This is a side view showing a connecting jig according to the third embodiment. [Figure 21] This is a perspective view showing the connecting jig. [Figure 22] Figure 20 shows a cross-sectional view of the connecting jig along the line F22-F22. [Figure 23] Figure 21 is a cross-sectional view of the connecting jig along the line F23-F23. [Figure 24] This is a perspective view showing an example of how the joint member is used. [Figure 25] This is a perspective view showing an example of how the joint member is used. [Figure 26] This is a perspective view showing an example of how the joint member is used. [Figure 27] This is a cross-sectional view of the joint member shown in Figure 16, along the line F27-F27. [Figure 28] This is a cross-sectional view of the joint member shown in Figure 17, along the line F28-F28. [Figure 29] This is a cross-sectional view of the joint member shown in Figure 16, along the line F29-F29. [Modes for carrying out the invention]

[0034] The embodiments of the joint member and fishing net according to the present invention will be described below with reference to the drawings. Note that in each drawing, the scale of each component may be appropriately changed as needed in order to make each component visible.

[0035] A net 1 according to the first embodiment of the present invention will be described with reference to Figures 1 to 9. As shown in Figures 1 and 2, the dip net 1 of this embodiment comprises a net frame 2 (fishing equipment) to which the net 2a is attached, a handle 3, and a joint member 10 that connects the net frame 2 and the handle 3. The joint member 10 is used to detachably attach the mesh frame 2 and the tip 3a of the handle 3.

[0036] Here, the longitudinal direction of the handle 3 is defined as the longitudinal direction X, the net frame 2 side on one end of the net in the longitudinal direction X is defined as the tip side X1, and the handle 3 side on the other end is defined as the base side X2. In addition, the axis coaxial with the handle 3 in the joint member 10 is called the central axis O, and the longitudinal direction X is along the axial direction of the central axis O. In a plan view of the net 1 as seen from the axial direction, the direction perpendicular to the central axis O is called the radial direction, and the direction that revolves around the central axis O is called the circumferential direction or rotational direction.

[0037] The mesh frame 2 is formed in a circular shape and is designed to be removable from the handle 3 when not in use. A pin joint (first member) 4 of the joint member 10, described later, is fixed to the mesh frame 2. The mesh frame 2 is divided into several (four in this case) arc sections in the circumferential direction, and each is assembled into a circular shape. A mesh 2a, for example, made of nylon, is installed inside the mesh frame 2. The mesh frame 2 itself may be fixed in a circular shape, or it may be designed to be foldable. Furthermore, it is not limited to a circular shape, but may take on various other shapes such as a triangle.

[0038] The handle 3 is constructed of multiple cylindrical connecting tubes that are extendable and retractable in the longitudinal direction X, or that can be joined together. The net frame 2 is connected to the tip 3a of the handle 3 via a joint member 10. A connecting jig (second member) 5 of the joint member 10, which will be described later, is fixed to the tip 3a of the handle 3. The tip 3a of the handle 3 has a female threaded portion 3b that is provided coaxially with the central axis O of the handle 3 and can be screwed into the male threaded portion 59 of the connecting jig 5, which will be described later.

[0039] As shown in Figure 2, the joint member 10 comprises a pin joint (first member) 4 and a connecting jig (second member) 5. The joint member 10 is formed from a corrosion-resistant material such as stainless steel, titanium, and aluminum.

[0040] As shown in Figure 2, the pin joint 4 is fixed to the mesh frame 2. The pin joint 4 protrudes radially outward from the outer circumference of the mesh frame 2. The pin joint 4 is a rod-shaped member. The pin joint 4 has a substantially cylindrical pin shaft portion (shaft portion) 41. On the outer circumferential surface of the pin shaft portion 41, pin male thread portions (engaging portions, male threads) 42 for connecting and fixing to the connecting jig 5 and pin flat portions 43 are alternately formed in the circumferential direction. The pin male thread portions 42 are formed on a part of the outer circumferential surface of the pin shaft portion 41.

[0041] As shown in Figure 3, the male threaded portion 42 of the pin is formed along the entire axial length of the outer surface of the pin shaft portion 41, and multiple threads are arranged to be aligned in the axial direction.

[0042] The pin plane portions 43 are formed in two locations on the outer circumferential surface of the pin shaft portion 41, facing each other in the radial direction. The pair of pin plane portions 43 are provided to divide the threads extending in the circumferential direction of the male thread portion 42 on both sides in the circumferential direction. The pin plane portions 43 are planes perpendicular to the radial direction when viewed from the axial direction.

[0043] As shown in Figures 3 to 5, the connecting jig 5 is a substantially cylindrical member. The connecting jig 5 has a cylindrical portion 51, a locking member 52, a biasing member 53, and an operating portion 54.

[0044] The cylindrical portion 51 is a substantially cylindrical member. The inner diameter of the cylindrical portion 51 is slightly larger than the outer diameter of the pin shaft portion 41. As shown in Figure 4, on the inner circumferential surface of the tip portion 51s of the cylindrical portion 51, connecting female thread portions (engaged portion, female thread) 55 and connecting flat portions 56 are alternately formed in the circumferential direction for connecting and fixing to the pin joint 4. The connecting female thread portions 55 are formed on a part of the inner circumferential surface of the cylindrical portion 51.

[0045] As shown in Figures 3 and 4, the female threaded portion 55 of the connection has multiple threads arranged in the axial direction. The female threaded portion 55 of the connection is a component that can be screwed into the male threaded portion 42 of the pin.

[0046] The connecting plane portions 56 are formed at two locations on the inner circumferential surface of the cylindrical portion 51, facing each other in the radial direction. The pair of connecting plane portions 56 are provided to divide the threads extending in the circumferential direction of the connecting female thread portion 55 on both sides in the circumferential direction. The connecting plane portions 56 are planes perpendicular to the radial direction when viewed from the axial direction. The length between the pair of connecting plane portions 56 in the radial direction is slightly greater than the length between the pair of pin plane portions 43 in the radial direction.

[0047] An insertion hole 57 is formed inside the tip portion 51s of the cylindrical portion 51 by the opposing portion 55a and the connecting flat portion 56 of the connecting female thread portion 55. The opposing portion 55a is the cut surface of the thread of the connecting female thread portion 55 that is separated by the connecting flat portion 56, and is formed facing each other in the radial direction. The insertion hole 57 is a hole through which the pin shaft portion 41 can be inserted in the longitudinal direction X.

[0048] As shown in Figure 3, the cylindrical portion 51 has a guide portion 58 that guides the locking member 52 in the longitudinal direction X. The guide portion 58 is a rectangular hole that penetrates the cylindrical portion 51 in the radial direction. Two guide portions 58 are formed facing each other in the radial direction.

[0049] As shown in Figure 3, a male threaded portion 59 is formed on the outer circumferential surface of the base end portion 51t of the cylindrical portion 51 for connecting and fixing to the tip portion 3a of the handle 3. The male threaded portion 59 has multiple threads arranged in the axial direction. The male threaded portion 59 is a component that can be screwed into the female threaded portion 3b of the handle 3.

[0050] The locking member 52 is a member that can engage with the pin shaft portion 41. The locking member 52 is a member that can move back and forth in the longitudinal direction X relative to the cylindrical portion 51, thereby transitioning between an engagement position Pr in which it can engage with the pin shaft portion 41 and a release position Pc in which it is released from engagement with the pin shaft portion 41.

[0051] As shown in Figure 5, the locking member 52 is positioned in the internal space of the cylindrical portion 51 on the base end side X2 of the connecting female thread portion 55 and the connecting planar portion 56. The locking member 52 has an engaging recess 52a that can engage with the base end of the pin shaft portion 41, and a guided portion 52b that is guided in the longitudinal direction X by the guide portion 58.

[0052] As shown in Figure 5, the engaging recess 52a is a member having a recess that is embedded toward the base end X2. The engaging recess 52a is formed in a U-shape when viewed radially. The engaging recess 52a has a pair of opposing surfaces 52s that face each other in the radial direction. The length between the pair of opposing surfaces 52s in the radial direction is slightly greater than the length between the pair of pin plane portions 43 in the radial direction. The engaging recess 52a is a member through which the pin shaft portion 41 can be inserted toward the base end X2.

[0053] The radial distance between the pair of opposing surfaces 52s is shorter than the outer diameter of the portion of the pin shaft 41 where the male threaded portion 42 is formed. The tip of the locking member 52 is a contact portion 52t that can be contacted by the base end 41t of the pin shaft 41. The locking member 52 is arranged in a direction in which the pin plane 43 and the opposing surface 52s are substantially parallel. However, the locking member 52 does not need to be arranged in a direction in which the pin plane 43 and the opposing surface 52s are not perpendicular to each other.

[0054] The guided portion 52b is a member that protrudes radially outward from the engaging recess 52a. The guided portion 52b is provided at both radial ends of the engaging recess 52a. The guided portion 52b penetrates the guide portion 58 radially.

[0055] The biasing member 53 is a member that biases the locking member 52 toward the tip side X1. As shown in Figure 5, the biasing member 53 is positioned on the base end side X2 of the locking member 52 within the internal space of the cylindrical portion 51. As shown in Figure 6, the biasing member 53 is housed in a cylindrical biasing member housing portion 51a provided within the internal space of the cylindrical portion 51. The biasing member 53 is, for example, a spring that expands and contracts in the longitudinal direction X.

[0056] The operating part 54 is a member that moves the locking member 52 forward and backward in the longitudinal direction X. The operating part 54 is formed in a cylindrical shape that covers the outer circumference of the cylindrical part 51. The inner diameter of the operating part 54 is formed to be slightly larger than the outer diameter of the cylindrical part 51. The operating part 54 is connected to the guided part 52b from the inner circumferential surface side. The operating part 54 is connected to the guided part 52b by sandwiching it from the radial direction. The operating part 54 is a member that can rotate circumferentially integrally with the cylindrical part 51.

[0057] Next, the function of the joint member 10 will be explained.

[0058] As shown in Figure 3, the pin shaft portion 41 can be inserted into the insertion hole 57 with the pin plane portion 43 and the connecting plane portion 56 being substantially parallel. With respect to the pin shaft portion 41, the circumferential position where the pin plane portion 43 and the connecting plane portion 56 are substantially parallel, when the axial directions of the pin shaft portion 41 and the connecting jig 5 are aligned, is defined as the first position P1. The pin shaft portion 41 can be inserted into the insertion hole 57 at the first position P1.

[0059] When the pin shaft portion 41 inserted through the insertion hole 57 is further pushed toward the base end X2, the base end 41t and the contact portion 52t come into contact. When the pin shaft portion 41 is further pushed toward the base end X2, as shown in Figure 7, the locking member 52, which was biased toward the tip end X1 by the biasing member 53, can be moved toward the base end X2.

[0060] With the pin shaft portion 41 inserted into the insertion hole 57, the pin shaft portion 41 is rotated in the circumferential direction. As the pin shaft portion 41 rotates circumferentially relative to the cylindrical portion 51, the pin male thread portion 42 and the connecting female thread portion 55 are screwed together. The screwing together of the pin male thread portion 42 and the connecting female thread portion 55 restricts the movement of the pin shaft portion 41 in the longitudinal direction X. The position where the pin plane portion 43 and the connecting plane portion 56 intersect is defined as the second position P2. The pin shaft portion 41 transitions between the first position P1 and the second position P2 by rotating circumferentially relative to the connecting jig 5.

[0061] When the pin shaft portion 41 is rotated to a position where the pin plane portion 43 and the opposing surface 52s are approximately parallel, the contact between the base end 41t of the pin shaft portion 41 and the contact portion 52t is released, and the locking member 52, which is biased toward the tip side X1 by the biasing member 53, moves toward the tip side X1. When the locking member 52 moves toward the tip side X1 at the position where the pin plane portion 43 and the opposing surface 52s are approximately parallel, the pin shaft portion 41 engages with the engagement recess 52a, as shown in Figure 8. By engaging the pin shaft portion 41 with the engagement recess 52a, the pin shaft portion 41 can no longer rotate circumferentially relative to the cylindrical portion 51. The position where the locking member 52 is biased toward the tip side X1 by the biasing member 53 and the pin shaft portion 41 engages with the engagement recess 52a is defined as the engagement position Pr.

[0062] The pin shaft portion 41 is fixed to the connecting jig 5 because its circumferential rotation is restricted when the pin plane portion 43 and the connecting plane portion 56 are perpendicular to each other. The movement of the pin shaft portion 41 in the longitudinal direction X is restricted by the pin male thread portion 42 and the connecting female thread portion 55, and its circumferential rotation is restricted by the locking member 52. Therefore, the pin joint 4 is fixed to the connecting jig 5 in a stable state.

[0063] The locking member 52 can be released from the pin joint 4 and the connecting jig 5 by moving it in the longitudinal direction X. The locking member 52 can be moved to the base end side X2 relative to the cylindrical part 51 by moving the operating part 54 to the base end side X2 relative to the cylindrical part 51. At this time, the locking member 52 also moves to the base end side X2 relative to the pin shaft part 41. By moving the locking member 52 further to the base end side X2, as shown in Figure 9, the locking member 52 can be moved to a position where the circumferential rotation of the pin shaft part 41 is not restricted by the engagement recess 52a. The position in the locking member 52 where the circumferential rotation of the pin shaft part 41 is not restricted by the engagement recess 52a is defined as the release position Pc. That is, the locking member 52 can transition between the engagement position Pr and the release position Pc by moving forward and backward in the longitudinal direction X relative to the pin joint 4.

[0064] With the locking member 52 in the released position Pc, the pin shaft portion 41 can be moved from the second position P2 to the first position P1 by rotating the pin shaft portion 41 circumferentially relative to the cylindrical portion 51. As shown in Figure 7, by moving the pin shaft portion 41 to the first position P1, the pin shaft portion 41 can be moved to the tip side X1 of the insertion hole 57, thereby releasing the fixation between the pin joint 4 and the connecting jig 5. The fixation between the pin joint 4 and the connecting jig 5 can be easily released by moving the locking member 52.

[0065] According to the joint member 10 of this embodiment, by rotating the pin joint (first member) 4 circumferentially relative to the connecting jig (second member) 5, insertion and removal of the pin joint 4 in the longitudinal direction X from the connecting jig 5 is restricted. Therefore, the pin joint 4 and the connecting jig 5 can be fixed simply by rotating the pin joint 4 circumferentially. Furthermore, since the connecting jig 5 has a locking member 52 that can restrict the circumferential rotation of the pin joint 4, the pin joint 4 and the connecting jig 5 can be stably fixed.

[0066] According to the joint member 10 of this embodiment, when the pin joint 4 is in the second position P2, the pin male thread portion (engaging portion, male thread) 42 and the connecting female thread portion (engaged portion, female thread) 55 are screwed together, so the insertion and removal of the pin joint 4 from the connecting jig 5 in the longitudinal direction X can be more effectively restricted.

[0067] According to the joint member 10 of this embodiment, the connecting jig 5 has a biasing member 53 that biases the locking member 52 toward the pin joint 4 in the longitudinal direction X. Therefore, by simply rotating the pin joint 4 to the second position P2, the circumferential rotation of the pin joint 4 relative to the connecting jig 5 is restricted. As a result, the pin joint 4 and the connecting jig 5 can be stably fixed by simply rotating the pin joint 4 relative to the connecting jig 5.

[0068] According to the joint member 10 of this embodiment, the biasing member 53 biases the locking member 52 in the longitudinal direction X. Therefore, the direction in which the biasing member 53 biases the locking member 52 and the direction in which the pin joint 4 is inserted into the connecting jig 5 do not intersect, thus preventing the pin joint 4 and the locking member 52 from getting caught when the pin joint 4 is inserted into the connecting jig 5.

[0069] According to the joint member 10 of this embodiment, the connecting jig 5 has an operating part 54 that moves the locking member 52 in the longitudinal direction X, making it easy to release the engagement between the pin joint 4 and the biasing member 53, and easy to release the connection between the pin joint 4 and the connecting jig 5.

[0070] According to the joint member 10 of this embodiment, by rotating the operating part 54, the cylindrical part 51 rotates circumferentially with respect to the pin joint 4, making it easy to transition the pin joint 4 between the first position P1 and the second position P2, and making it easy to release the connection between the pin joint 4 and the connecting jig 5.

[0071] According to this embodiment of the netting 1, since it is equipped with a joint member 10, it has the effects of the joint member 10. Therefore, the netting frame 2 and the handle 3 can be stably connected, and the connection between the netting frame 2 and the handle 3 can be easily released.

[0072] Although the first embodiment of the present invention has been described in detail above with reference to the drawings, the specific configuration is not limited to this embodiment, and design modifications and the like are also included within the scope of the gist of the present invention. Furthermore, the components shown in the above embodiment can be combined as appropriate.

[0073] In the joint member 10 according to this embodiment, the locking member 52 is configured to switch between an engaged position Pr and an released position Pc by moving back and forth in the longitudinal direction X, but the direction in which the locking member 52 moves back and forth is not limited. For example, the locking member 52 may be configured to move back and forth in a direction (first direction) intersecting the longitudinal direction X.

[0074] In this embodiment, a male pin thread portion 42 is formed on a part of the outer circumferential surface of the pin shaft portion 41, and a female connecting thread portion 55 is formed on the inner circumferential surface of the cylindrical portion 51. However, the configuration in which the pin shaft portion 41 and the cylindrical portion 51 engage is not limited. For example, instead of screwing the pin shaft portion 41 and the cylindrical portion 51 together, they may be engaged by a member with an uneven shape.

[0075] In this embodiment, the pin joint 4 is fixed to the mesh frame 2 and the connecting jig 5 is fixed to the handle 3, but the members to which the pin joint 4 and the connecting jig 5 are fixed are not limited. The pin joint 4 may be fixed to the handle 3 and the connecting jig 5 may be fixed to the mesh frame 2.

[0076] In this embodiment, as an example of fishing equipment, an example was described in which the net frame 2 and handle 3 of a landing net 1 are connected by a joint member 10. However, the members connected by the joint member 10 are not limited. The joint member 10 may, for example, be used to connect a bait box to a cooler box.

[0077] Next, the joint member 10B according to the second embodiment of the present invention will be described with reference to Figures 10 to 14. The joint member 10B according to the second embodiment differs from the joint member 10 according to the first embodiment in the configuration of the engaging portion and other parts. In the following description, components that are common to those already described will be denoted by the same reference numerals, and redundant explanations will be omitted.

[0078] The joint member 10B, like the joint member 10, is used to detachably attach the mesh frame 2 and the tip 3a of the handle 3. As shown in Figure 10, the joint member 10 comprises a pin joint (first member) 4B and a connecting jig (second member) 5B.

[0079] Pin joint 4B is fixed to the mesh frame 2, similar to pin joint 4. Pin joint 4B has a pin shaft portion 41, as shown in Figure 11.

[0080] As shown in Figure 11, the outer circumferential surface of the pin shaft portion 41 is alternately formed in the circumferential direction with pin engagement portions (engagement portions) 42B for connecting and fixing to the connecting jig 5B and pin flat portions 43.

[0081] The pin engagement portion 42B is provided as an engagement portion in place of the pin male thread portion 42. The pin engagement portion 42B is provided at two locations on the outer circumferential surface of the pin shaft portion 41. The pair of pin engagement portions 42B are provided at positions that are approximately 2 times symmetrical with respect to the longitudinal direction X as the axis of rotation. The pin engagement portion 42B protrudes radially from the outer circumferential surface of the pin shaft portion 41. When viewed radially, the pin engagement portion 42B is formed in the shape of a rectangle with its corners beveled.

[0082] As shown in Figure 11, a tip-side engaging portion 44 is further formed on the outer circumferential surface of the pin shaft portion 41. The tip-side engaging portion 44 is a member that can engage with the cylindrical portion 51 of the connecting jig 5. The tip-side engaging portion 44 is provided X1 towards the tip side of the pin engaging portion 42B. The tip-side engaging portion 44 is formed around the entire circumference of the outer circumferential surface of the pin shaft portion 41. When viewed from the longitudinal direction X, the tip-side engaging portion 44 is formed in a circular shape. The outer diameter of the tip-side engaging portion 44 is approximately equal to the inner diameter of the cylindrical portion 51 and slightly smaller than the inner diameter of the cylindrical portion 51.

[0083] The connecting jig 5B is fixed to the handle 3 by a male threaded portion 59 and a female threaded portion 3b, similar to the connecting jig 5. As shown in Figure 12, the connecting jig 5B has a cylindrical portion 51, a locking member 52, a biasing member 53, and an operating portion 54.

[0084] As shown in Figure 12, the inner circumferential surface of the cylindrical portion 51 has connecting engagement portions (engaged portions) 55B and connecting plane portions 56 alternately formed in the circumferential direction for connecting and fixing to the pin joint 4B.

[0085] The connecting engagement portion 55B is provided as the engaged portion in place of the connecting female thread portion 55. The connecting engagement portion 55B is a member that can engage with the pin engagement portion 42B. The connecting engagement portion 55B is provided at two locations on the inner circumferential surface of the cylindrical portion 51. The pair of connecting engagement portions 55B are provided at positions that are approximately 2 times symmetrical with respect to the longitudinal direction X as the axis of rotation.

[0086] The connecting engagement portion 55B has a tip-side restricting portion 551 and a base-side restricting portion 552. The tip-side restricting portion 551 and the base-side restricting portion 552 are spaced apart in the longitudinal direction X. The tip-side restricting portion 551 is provided on the tip side X1 of the base-side restricting portion 552. A pin engagement portion 42B is positioned between the tip-side restricting portion 551 and the base-side restricting portion 552 in the longitudinal direction X.

[0087] The tip-side restricting portion 551 is a member that restricts the movement of the pin engagement portion 42B to the tip side X1. The tip-side restricting portion 551 protrudes radially from the inner circumferential surface of the cylindrical portion 51.

[0088] The base end restricting portion 552 is a member that restricts the movement of the pin engagement portion 42B to the base end side X2. The base end restricting portion 552 protrudes radially from the inner circumferential surface of the cylindrical portion 51.

[0089] Each of the pair of connecting engagement portions 55B has a tip-side restricting portion 551, and there are two tip-side restricting portions 551 spaced radially apart. Each of the pair of tip-side restricting portions 551 has an opposing portion 55a. Similarly, there are two base-side restricting portions 552 spaced radially apart, and each of the pair of base-side restricting portions 552 has an opposing portion 55a. In the connecting jig 5B, similar to the connecting jig 5, an insertion hole 57 is formed inside the tip portion 51s of the cylindrical portion 51 by the opposing portion 55a and the connecting plane portion 56.

[0090] The length of the pin engagement portion 42B in the longitudinal direction X is slightly shorter than the length between the tip-side restricting portion 551 and the base-side restricting portion 552 in the longitudinal direction X. The length of the pin engagement portion 42B in the radial direction is slightly shorter than the length between the pair of opposing portions 55a in the radial direction.

[0091] The length in the longitudinal direction X between the pin engagement portion 42B and the tip-side engagement portion 44 is slightly longer than the length in the longitudinal direction X of the tip-side restricting portion 551. As shown in Figure 13, in the longitudinal direction X, the length from the base end 44t of the tip-side engagement portion 44 to the base end 2t of the mesh frame 2 is longer than the length from the tip 551s of the tip-side restricting portion 551 to the tip 51u of the cylindrical portion 51.

[0092] Next, the function of the joint member 10B will be explained.

[0093] Similar to pin joint 4, pin joint 4B is inserted into the insertion hole 57 of connecting jig 5B with the pin shaft portion 41 in the first position P1, and the locking member 52 is moved to the base end side X2. At this time, the base end 44t of the tip-side engaging portion 44 is inserted until it contacts the tip 551s of the tip-side restricting portion 551, so that the positions of the pin engaging portion 42B and the connecting engaging portion 55B coincide in the longitudinal direction X.

[0094] After inserting the pin shaft portion 41 into the insertion hole 57, the pin shaft portion 41 is rotated to move it to the second position P2, causing the locking member 52 to move towards the tip side X1 by the biasing member 53. As the locking member 52 moves towards the tip side X1, the pin shaft portion 41 and the locking member 52 engage, restricting the circumferential rotation of the pin shaft portion 41. At this time, the pin engagement portion 42B and the connecting engagement portion 55B engage, restricting the movement of the pin shaft portion 41 in the longitudinal direction X. Therefore, the pin shaft portion 41 is fixed to the cylindrical portion 51.

[0095] When the pin engagement portion 42B and the connecting engagement portion 55B are engaged, the tip-side engagement portion 44 and the cylindrical portion 51 also engage, as shown in Figure 14. The engagement between the tip-side engagement portion 44 and the cylindrical portion 51 further restricts the radial movement of the pin shaft portion 41. In addition, the base end 44t of the tip-side engagement portion 44 and the tip 551s of the tip-side restricting portion 551 come into contact, further restricting the longitudinal movement of the pin shaft portion 41 in the longitudinal direction X. As a result, the pin joint 4B is fixed to the connecting jig 5B in a more stable state.

[0096] In the longitudinal direction X, the length from the base end 44t of the tip-side engaging portion 44 to the base end 2t of the mesh frame 2 is longer than the length from the tip 551s of the tip-side restricting portion 551 to the tip 51u of the cylindrical portion 51. Therefore, when the pin engaging portion 42B and the connecting engaging portion 55B are engaged, a gap G is formed between the mesh frame 2 and the connecting jig 5B, as shown in Figure 13. This absorbs dimensional errors in the parts.

[0097] Although a second embodiment of the present invention has been described in detail above with reference to the drawings, the specific configuration is not limited to this embodiment, and design changes and the like are also included within the scope of the gist of the present invention. Furthermore, the components shown in the above-described embodiments and modifications can be combined as appropriate.

[0098] Next, a third embodiment of the present invention, the tamo net 1C, will be described with reference to Figures 15 to 29. As shown in Figure 15, the landing net 1C of this embodiment comprises a net frame 2C (fishing equipment) to which the net can be attached, a handle 3C, and a joint member 10C that connects the net frame 2C and the handle 3C. The joint member 10C is used to detachably attach the mesh frame 2C and the handle 3C to the tip 3Ca.

[0099] Here, the longitudinal direction of the handle 3C is defined as the longitudinal direction X, the net frame 2C side on one end of the net in the longitudinal direction X is defined as the tip side X1, and the handle 3C side on the other end is defined as the base side X2. In addition, the axis coaxial with the handle 3C in the joint member 10C is called the central axis O, and the longitudinal direction X is along the axial direction of the central axis O. In a plan view of the net 1C as seen from the axial direction, the direction perpendicular to the central axis O is called the radial direction, and the direction that revolves around the central axis O is called the circumferential direction C. Furthermore, of the circumferential directions C, the direction clockwise when viewed from the tip side X1 is called clockwise C1, and the direction counterclockwise (second direction) C2 is called counterclockwise

[0100] The mesh frame 2C is formed in a circular shape and is designed to be detachable from the handle 3C when not in use. A pin joint (first member) 4C of the joint member 10C, described later, is fixed to the mesh frame 2C. The mesh frame 2C is divided into several (four in this case) arc sections in the circumferential direction, and each is assembled into a circular shape. A mesh (not shown), such as one made of nylon, is mounted inside the mesh frame 2C. The mesh frame 2C itself may be fixed in a circular shape, or it may be designed to be foldable. Furthermore, it is not limited to a circular shape, but may take on various other shapes such as a triangle.

[0101] The handle 3C is configured with multiple cylindrical connecting tubes that are extendable and retractable in the longitudinal direction X, or that can be joined together. The net frame 2C is connected to the tip 3Ca of the handle 3C via a joint member 10C. The tip 3Ca of the handle 3C has a female threaded portion 3Cb that is provided coaxially with the central axis O of the handle 3C and can be screwed into the male threaded portion 59C of the connecting jig 5C, which will be described later.

[0102] As shown in Figures 16 and 17, the joint member 10C comprises a pin joint (first member) 4C and a connecting jig (second member) 5C. The joint member 10C is formed from a corrosion-resistant material such as stainless steel, titanium, and aluminum.

[0103] The pin joint 4C is fixed to the mesh frame 2C (see Figure 15). The pin joint 4C protrudes radially outward from the outer circumference of the mesh frame 2C. As shown in Figures 18 and 19, the pin joint 4C has a cylindrical pin shaft portion (shaft portion) 41C. On the outer circumferential surface of the pin shaft portion 41C, pin engagement portions (projections) 42C for connecting and fixing to the connecting jig 5C and pin flat portions 43C are alternately formed in the circumferential direction C.

[0104] Two pin engagement portions 42C are provided on the outer circumferential surface of the pin shaft portion 41C, spaced apart in the circumferential direction C. The pair of pin engagement portions 42C are positioned symmetrically twice with respect to the longitudinal direction X as the axis of rotation. The pin engagement portions 42C protrude radially outward from the outer circumferential surface of the pin shaft portion 41C.

[0105] The pin engagement portion 42C has an engagement portion inclined surface (first inclined surface) 42Ca formed on the side portion 42Cs of the tip side X1. The engagement portion inclined surface 42Ca is an inclined surface that slopes toward the tip side X1 as it progresses counterclockwise C2. The engagement portion inclined surface 42Ca is formed in a straight line when viewed from the radial direction.

[0106] The pin plane portions 43C are formed at two locations on the outer circumferential surface of the pin shaft portion 41C, facing each other in the radial direction. The pair of pin plane portions 43C are perpendicular to the radial direction when viewed from the axial direction.

[0107] The pin joint 4C further includes a fixing member 44C. The fixing member 44C is a member that fixes the mesh frame 2C and the pin shaft portion 41C. The fixing member 44C is fixed to the tip portion 41Cs of the pin shaft portion 41C. The fixing member 44C protrudes radially outward from the outer circumferential surface of the pin shaft portion 41C. Two fixing members 44C are provided spaced apart in the circumferential direction C. The pair of fixing members 44C are provided in positions that are twice symmetrical with respect to the longitudinal direction X as the axis of rotation. The fixing member 44C has a contact surface 44Ca that is located radially outward from the pin shaft portion 41C when viewed from the longitudinal direction X. The contact surface 44Ca is the surface facing the base end side X2.

[0108] As shown in Figures 20 and 21, the connecting jig 5C is a cylindrical member. The connecting jig 5C has a cylindrical portion 51C, a restricting portion 55C, a locking member 52C, a biasing member 53C, and an operating portion 54 (cover portion)C.

[0109] The cylindrical portion 51C is a cylindrical member. The cylindrical portion 51C is the member through which the pin shaft portion 41C is inserted and removed. The inner diameter of the cylindrical portion 51C is slightly larger than the length from one end to the other in the radial direction of the pair of pin engagement portions 42C on the outer diameter of the pin shaft portion 41C.

[0110] A male threaded portion 59C is formed on the outer circumferential surface of the base end portion 51Ct of the cylindrical portion 51C for connecting and fixing to the tip portion 3a of the handle 3C. The male threaded portion 59C has multiple threads arranged in the axial direction. The male threaded portion 59C is a component that can be screwed into the female threaded portion 3Cb of the handle 3C.

[0111] The restricting portion 55C is a member capable of restricting the movement of the pin engagement portion 42C in the longitudinal direction X. The restricting portion 55C is provided at the tip end X1 of the cylindrical portion 51C. The restricting portion 55C protrudes radially inward from the inner circumferential surface of the cylindrical portion 51C. The restricting portion 55C is a plate-shaped member with the longitudinal direction X as the plate thickness direction. Two restricting portions 55C are provided spaced radially apart. The radial gap between one restricting portion 55C and the other restricting portion 55C is shaped so that the pin shaft portion 41C can be inserted through it in the longitudinal direction X.

[0112] Here, in the radial direction of the connecting jig 5C, the direction in which the pair of restricting portions 55C are separated is defined as the lateral direction W1, and the direction perpendicular to the lateral direction W1 is defined as W2.

[0113] As shown in Figure 22, the restricting portion 55C has a restricting portion inclined surface (second inclined surface) 55Ca formed on the side portion 55Cs facing the base end side X2. The restricting portion inclined surface 55Ca is an inclined surface that slopes toward the tip side X1 as it progresses counterclockwise C2. The restricting portion inclined surface 55Ca is formed in a straight line when viewed from the radial direction. The inclination angle of the restricting portion inclined surface 55Ca with respect to the circumferential direction C is equal to the inclination angle of the engaging portion inclined surface 42Ca with respect to the circumferential direction C (see Figure 29).

[0114] The cylindrical portion 51C has a guide portion 58C formed therein that guides the locking member 52C in the longitudinal direction X. The guide portion 58C is a rectangular hole that penetrates the cylindrical portion 51C in the radial direction. Two guide portions 58C are provided, facing each other in the radial direction.

[0115] As shown in Figures 21 and 22, the locking member 52C is a member that can engage with the pin shaft portion 41C. The locking member 52C is a member that can move between an engagement position Pr in which it can engage with the pin shaft portion 41C and a release position Pc (see Figure 25) in which it is released from engagement with the pin shaft portion 41C by moving back and forth in the longitudinal direction X relative to the cylindrical portion 51C. The locking member 52C is arranged in the internal space of the cylindrical portion 51C. The locking member 52C has an engagement recess 52Ca that can engage with the base end 41Ct of the pin shaft portion 41C, and a guided portion 52Cb that is guided in the longitudinal direction X by the guide portion 58C.

[0116] The engaging recess 52Ca is a member having a recess that is embedded toward the base end X2. The engaging recess 52Ca is formed in a U-shape when viewed from the lateral direction W1. The engaging recess 52Ca has a pair of opposing surfaces 52Cs that face each other in the vertical direction W2. The length between the pair of opposing surfaces 52Cs in the vertical direction W2 is slightly greater than the length between the pair of pin plane portions 43C in the radial direction. The engaging recess 52Ca is a member through which the pin shaft portion 41C can be inserted toward the base end X2.

[0117] The length between the pair of opposing surfaces 52Cs in the vertical direction W2 is shorter than the length from one end to the other in the radial direction of the pair of pin engagement portions 42C within the outer diameter of the pin shaft portion 41C. The tip of the locking member 52C is a contact portion 52Ct that can be contacted by the base end 41Ct of the pin shaft portion 41C.

[0118] The guided portion 52Cb is a member that protrudes radially outward from the engaging recess 52Ca. The guided portion 52Cb is provided at both ends of the engaging recess 52Ca in the longitudinal direction W2. The guided portion 52Cb is inserted through the guide portion 58C in the longitudinal direction W2.

[0119] As shown in Figures 22 and 23, the biasing member 53C is a member that biases the locking member 52C toward the tip side X1. The biasing member 53C is positioned in the internal space of the cylindrical portion 51C toward the base end side X2 of the locking member 52C. The biasing member 53C is housed in the biasing member housing portion 51Ca of the cylindrical portion 51C. The biasing member housing portion 51Ca is a cylindrical housing portion formed in the internal space of the cylindrical portion 51C. The biasing member 53C is, for example, a spring that expands and contracts in the longitudinal direction X.

[0120] The operating part 54C is a member that moves the locking member 52C forward and backward in the longitudinal direction X. The operating part 54C is formed in a cylindrical shape that covers the outer circumference of the cylindrical part 51C. The inner diameter of the operating part 54C is formed to be slightly larger than the outer diameter of the cylindrical part 51C. The operating part 54C is connected to the guided part 52Cb from the inner circumferential surface side. The operating part 54C is connected to the guided part 52Cb by sandwiching it from the longitudinal direction W2. The operating part 54C and the locking member 52C are formed integrally. The operating part 54C is a member that can rotate integrally with the cylindrical part 51C in the circumferential direction C. The operating part 54C is biased toward the tip side X1 by the biasing member 53C via the locking member 52C. The operating section 54C is biased by the biasing member 53C until the tip end X1 of the operating section 54C contacts the contact surface 44Ca.

[0121] Next, the function of the joint member 10C will be explained.

[0122] As shown in Figure 24, the pin shaft portion 41C can be inserted into the cylindrical portion 51C when the pin plane portion 43C is perpendicular to the lateral direction W1. With respect to the pin shaft portion 41C, the position in the circumferential direction C where the pin plane portion 43C is perpendicular to the lateral direction W1, when the axial directions of the pin shaft portion 41C and the connecting jig 5C are aligned, is defined as the first position P1. The pin shaft portion 41C can be inserted into the cylindrical portion 51C at the first position P1.

[0123] When the pin shaft portion 41C, which is inserted through the cylindrical portion 51C, is pushed further toward the base end X2, the base end 41Ct and the contact portion 52Ct come into contact. When the pin shaft portion 41C is pushed further toward the base end X2, as shown in Figure 25, the locking member 52C, which was biased toward the tip end X1 by the biasing member 53C, can be moved toward the base end X2.

[0124] With the pin shaft portion 41C inserted into the cylindrical portion 51C, the pin shaft portion 41C is rotated in the circumferential direction C. When the pin shaft portion 41C is rotated to a position where the pin plane portion 43C and the opposing surface 52Cs are parallel, the contact between the base end 41Ct of the pin shaft portion 41C and the contact portion 52Ct is released, and the locking member 52C, which is biased toward the tip side X1 by the biasing member 53C, moves toward the tip side X1. When the locking member 52C moves toward the tip side X1 at a position where the pin plane portion 43C and the opposing surface 52Cs are approximately parallel, the pin shaft portion 41C engages with the engaging recess 52Ca, as shown in Figure 26. As the pin shaft portion 41C and the engaging recess 52Ca engage, the pin shaft portion 41C can no longer rotate circumferentially relative to the cylindrical portion 51C. Here, the position where the pin shaft portion 41C and the opposing surface 52Cs are parallel is defined as the second position P2. Furthermore, the position where the locking member 52C is biased toward the tip side X1 by the biasing member 53C and the pin shaft portion 41C and the engaging recess 52Ca engage is defined as the engagement position Pr.

[0125] As shown in Figures 26 and 27, when the pin shaft portion 41C is in the second position P2 and the locking member 52C is in the engagement position Pr, the pin plane portion 43C and the opposing surface 52Cs face each other in the circumferential direction C, and the movement of the pin plane portion 43C in the circumferential direction C is restricted by the opposing surface 52Cs, thereby restricting the rotation of the pin joint 4C in the circumferential direction C relative to the connecting jig 5C.

[0126] As shown in Figure 28, when the pin shaft portion 41C is in the second position P2 and the locking member 52C is in the engagement position Pr, the side portions 42Cs on the tip side X1 of the pin engagement portion 42C and the side portions 55Cs on the base end side X2 of the restricting portion 55C are facing each other in the longitudinal direction X. Since the movement of the pin engagement portion 42C toward the tip side X1 is restricted by the restricting portion 55C, the movement of the pin joint 4C toward the tip side X1 relative to the connecting jig 5C is restricted.

[0127] When the pin shaft portion 41C is in the second position P2 and the locking member 52C is in the engagement position Pr, the operating portion 54C is biased toward the tip side X1 by the biasing member 53C via the locking member 52C, and the tip of the operating portion 54C is in contact with the contact surface 44Ca of the fixed member 44C. At this time, the contact surface 44Ca and the tip of the operating portion 54C are facing each other in the longitudinal direction X, and the movement of the base end side X2 of the fixed member 44C is restricted by the operating portion 54C, so that the movement of the pin joint 4C toward the base end side X2 relative to the connecting jig 5C is restricted.

[0128] When the pin shaft portion 41C is in the second position P2 and the locking member 52C is in the engagement position Pr, the pin joint 4C is restricted from rotating in the circumferential direction C relative to the connecting jig 5C while being restricted from moving in the longitudinal direction X, so that the pin joint 4C is fixed in a stable state relative to the connecting jig 5C.

[0129] From a state where the pin shaft portion 41C is in the second position P2 and the locking member 52C is in the engagement position, the locking member 52C can be moved in the longitudinal direction X to release the fixation between the pin joint 4C and the connecting jig 5C. By moving the operating portion 54C to the base end side X2 relative to the cylindrical portion 51C, the locking member 52C can be moved to the base end side X2 relative to the cylindrical portion 51. At this time, the locking member 52C also moves to the base end side X2 relative to the pin shaft portion 41C. By moving the locking member 52C further to the base end side X2, the locking member 52C can be moved to a position where the rotation of the pin shaft portion 41C in the circumferential direction C is not restricted by the engagement recess 52Ca. The position in the locking member 52C where the rotation of the pin shaft portion 41C in the circumferential direction C is not restricted by the engagement recess 52Ca is defined as the release position Pc (see Figure 25). In other words, the locking member 52C can transition between an engaged position Pr and a released position Pc by moving back and forth in the longitudinal direction X relative to the pin joint 4C.

[0130] With the locking member 52C in the released position, the pin shaft portion 41C can be moved from the second position P2 to the first position P1 by rotating it in the circumferential direction C relative to the cylindrical portion 51C. By moving the pin shaft portion 41C to the first position P1, the pin shaft portion 41C can be moved to the tip side X1 of the cylindrical portion 51C, thereby releasing the fixation between the pin joint 4C and the connecting jig 5C. The fixation between the pin joint 4C and the connecting jig 5C can be easily released by moving the locking member 52C.

[0131] According to the joint member 10C of this embodiment, the pin joint (first member) 4C has a pin shaft portion (shaft portion) 41C and a pin engaging portion (protruding portion) 42C that protrudes radially outward from the outer surface of the pin shaft portion (shaft portion) 41C, and the connecting jig (second member) 5C has a cylindrical portion 51C into which the pin shaft portion (shaft portion) 41C is inserted and removed, and a portion that protrudes radially inward from the inner surface of the cylindrical portion 51C, with respect to the pin shaft portion (shaft portion) 41 in the longitudinal direction X The pin engagement portion (first member) 4C has a restricting portion 55C that restricts the movement of the pin engagement portion (protruding portion) 42C when the pin joint (first member) 4C is in the second position P2 in the extraction direction (tip side X1) in which C is removed from the cylindrical portion 51C, and a biasing member 53C that biases the pin shaft portion (shaft portion) 41C in the extraction direction (tip side X1), and the pin engagement portion (protruding portion) 42C has a side portion 42Cs facing the extraction direction (tip side X1) in the circumferential direction C One side of the pin engagement portion 42C has an engagement portion inclined surface (first inclined surface) 42Ca that inclins toward the withdrawal direction (tip side X1) as it moves counterclockwise (second direction) C2, and the restricting portion 55C has a restricting portion inclined surface (second inclined surface) 55Ca formed on the side portions 55Cs facing the insertion direction (base end side X2), which is the direction opposite to the withdrawal direction (tip side X1), which inclins toward the withdrawal direction (tip side X1) as it moves counterclockwise (second direction) C2. As a result, the engagement portion inclined surface 42Ca is formed on the side portions 42Cs of the pin engagement portion 42C that face the restricting portion 55C, and the restricting portion inclined surface 55Ca is formed on the side portions 55Cs of the restricting portion 55C that face the pin engagement portion 42C, so when the pin joint 4C is in the second position P2, the engagement portion inclined surface 42Ca and the restricting portion inclined surface 55Ca face each other. Because the inclined surfaces face each other, the movement of the pin joint 4C relative to the connecting jig 5C is further restricted. As a result, the connection between the pin joint 4C and the connecting jig 5C is stabilized, and the movement of the connecting jig 5C relative to the pin joint 4C is suppressed.

[0132] According to the joint member 10C of this embodiment, the pin engagement portion 42C is provided in two locations on the outer surface with a gap in the circumferential direction C, and the restricting portion 55C is provided in two locations on the inner surface with a gap in the circumferential direction C, thereby further stabilizing the connection between the pin joint 4C and the connecting jig 5C.

[0133] According to the joint member 10C of this embodiment, the inclination angle of the restricting portion inclined surface (second inclined surface) 55Ca with respect to the circumferential direction C is equal to the inclination angle of the engaging portion inclined surface (first inclined surface) 42Ca with respect to the circumferential direction C, thereby further stabilizing the connection between the pin joint 4C and the connecting jig 5C.

[0134] According to the joint member 10C of this embodiment, the pin joint (first member) 4C has a fixing member 44C that fixes one of the fishing gear and the tip portion to the pin shaft portion (shaft portion) 41C, and the connecting jig (second member) 5C has a cylindrical operating portion (cover portion) 54C that covers the cylindrical portion 51C, the fixing member 44C is fixed to the tip portion 41Cs of the pin shaft portion (shaft portion) 41C and has a contact surface 44Ca that is located radially outward from the pin shaft portion (shaft portion) 41C when viewed from the longitudinal direction X, and the operating portion (cover portion) 54C is biased in the removal direction (tip side X1) by the biasing member 53C and is biased to a position where the end of the tip side (removal direction side) X1 contacts the contact surface 44Ca, so that the restricting portion inclined surface 55Ca is further pressed against the engaging portion inclined surface 42Ca, and the movement of the pin joint 4C relative to the connecting jig 5C is further restricted.

[0135] According to the joint member 10C of this embodiment, the locking member 52C and the operating part (cover part) 54C are integrally formed, which reduces the number of parts and improves productivity.

[0136] Although a third embodiment of the present invention has been described in detail above with reference to the drawings, the specific configuration is not limited to this embodiment, and design modifications and the like are also included within the scope of the gist of the present invention. Furthermore, the components shown in the above-described embodiments can be combined as appropriate.

[0137] In this embodiment, an example of a fishing tool has been described in which the joint member 10C connects the net frame 2C and the handle 3C of a landing net 1C. However, the members connected by the joint member 10C are not limited. The joint member 10C may, for example, be a member for connecting a bait box to a cooler box.

[0138] In the joint member 10C according to this embodiment, the pin joint 4C is fixed to the mesh frame 2C and the connecting jig 5C is fixed to the handle 3C, but the members fixed to the pin joint 4C and the connecting jig 5C are not limited. The pin joint 4C may be fixed to the handle 3C and the connecting jig 5C may be fixed to the mesh frame 2C.

[0139] In the joint member 10C according to this embodiment, it is preferable that the engaging portion inclined surface 42Ca inclins toward the tip side X1 as it moves counterclockwise C2, and the restricting portion inclined surface 55Ca inclins toward the tip side X1 as it moves counterclockwise C2, but the configuration of the engaging portion inclined surface 42Ca and the restricting portion inclined surface 55Ca is not limited. The engaging portion inclined surface 42Ca may be configured to inclin toward the tip side X1 as it moves clockwise C1, and the restricting portion inclined surface 55Ca may be configured to inclin toward the tip side X1 as it moves clockwise C1. The engaging portion inclined surface 42Ca and the restricting portion inclined surface 55Ca only need to be inclined in the same direction.

[0140] In the joint member 10C according to this embodiment, it is preferable that the inclination angle of the restricting portion inclined surface 55Ca with respect to the circumferential direction C is equal to the inclination angle of the engaging portion inclined surface 42Ca with respect to the circumferential direction C, however, the inclination angles may differ slightly due to design errors, etc.

[0141] In the joint member 10C according to this embodiment, it is preferable that the locking member 52C and the operating part 54C are formed integrally, but the configuration of the connecting jig 5C is not limited. For example, the locking member 52C and the operating part 54C may be formed as separate parts. In this case, when cleaning the connecting jig 5C, the locking member 52C and the operating part 54C can be cleaned individually, making cleaning easier. [Explanation of symbols]

[0142] 1,1C…Landing net, 2,2C…Net frame, 2a…Net, 2t…Base end, 3,3C…Handle, 3a,3Ca…Tip, 3b,3Cb…Female threaded part, 10,10B,10C…Joint member, 4,4B,4C…Pin joint (first member), 41,41C…Pin shaft, 41Cs…Tip, 41t,41Ct…Base end, 42…Pin male threaded part, 42B…Pin engaging part (engaging part), 42C…Pin engaging part (Protruding part), 42Cs...side part, 42Ca...engaging part inclined surface (first inclined surface), 43...pin flat part, 44...tip side engaging part, 44t...base end, 44C...fixing member, 44Ca...contact surface, 5,5B,5C...connecting jig (second member), 51C...cylindrical part, 51s...tip part, 55...connecting female thread part (engaged part, female thread), 55a...opposing part, 56...connecting flat part, 57...insertion hole, 55B...connecting engagement Part, 551...Tip-side restricting part, 551s...Tip, 552...Base-side restricting part, 51t, 51Ct...Base end, 51u...Tip, 51a, 51Ca...Biasing member housing part, 58, 58C...Guiding part, 59, 59C...Male screw part, 55C...Restricting part, 55Cs...Side part, 55Ca...Restricting part inclined surface (second inclined surface), 52, 52C...Locking member, 52a, 52Ca...Engaging recess, 52s, 52Cs...Opposite Surface, 52t, 52Ct... Contact portion, 52b, 52Cb... Guided portion, 53, 53C... Biasing member, 54, 54C... Operating portion (cover portion), G... Gap, P1... First position, P2... Second position, Pr... Engaged position, Pc... Release position, X... Longitudinal direction (first direction), X1... Tip side, X2... Base end side, C... Circumferential direction, C1... Clockwise, C2... Counterclockwise (second direction), W1... Lateral direction, W2... Vertical direction

Claims

1. A joint member for detachably attaching fishing tackle to the tip of a handle, The device comprises a rod-shaped first member fixed to one of the fishing gear and the tip, and a cylindrical second member fixed to the other. The first member rotates relative to the second member in the circumferential direction, A first position that can be inserted into and removed from the second member in the longitudinal direction, A second position in which insertion and removal in the longitudinal direction of the second member is restricted, It is possible to transition to, The second member has a locking member that can restrict the rotation of the first member in the circumferential direction when the first member is in the second position. Joint component.

2. The first member has a shaft portion on which an engaging portion is formed on a part of its outer circumferential surface. The second member has a cylindrical portion on a part of its inner circumferential surface which is formed an engaged portion that can engage with the engaging portion. The joint member according to claim 1.

3. The engaging portion is a male thread, and the engaged portion is a female thread. The joint member according to claim 2.

4. The locking member moves back and forth in the first direction, An engagement position that can engage with the first member, A release position in which engagement with the first member is released, It can be switched to, The second member has a biasing member that biases the locking member toward the first member in the first direction. The joint member according to claim 2.

5. The first direction is the longitudinal direction. The joint member according to claim 4.

6. The second member has an operating part that moves the locking member forward and backward in the longitudinal direction, The joint member according to claim 5.

7. By rotating the operating part in the circumferential direction relative to the first member, the cylindrical part rotates in the circumferential direction relative to the first member. The joint member according to claim 6.

8. The first member has a shaft portion and a projection portion that protrudes radially outward from the outer surface of the shaft portion, The second member is, The cylindrical portion into which the shaft portion is inserted and removed, A restricting portion that protrudes radially inward from the inner surface of the cylindrical portion, and restricts the movement of the protruding portion when the first member is in the second position in the extraction direction, which is the direction in which the shaft portion is removed from the cylindrical portion in the longitudinal direction, The shaft portion has a biasing member that biases it in the removal direction, The protruding portion has a first inclined surface formed on the side facing the removal direction, which slopes in the removal direction as it progresses along one of the second directions in the circumferential direction. The restricting portion has a second inclined surface formed on the side facing the insertion direction, which is the direction opposite to the removal direction, which inclins in the removal direction as it advances in the second direction. The joint member according to claim 1.

9. The aforementioned protrusions are provided in two locations on the outer surface, spaced apart in the circumferential direction. The regulating portion is provided in two locations on the inner surface, spaced apart in the circumferential direction. The joint member according to claim 8.

10. The inclination angle of the second inclined surface with respect to the circumferential direction is equal to the inclination angle of the first inclined surface with respect to the circumferential direction. The joint member according to claim 8.

11. The first member has a fixing member that fixes one of the fishing gear and the tip portion to the shaft portion, The second member has a cylindrical cover portion that covers the cylindrical portion, The fixing member is fixed to the end of the shaft portion on the side facing the removal direction, and has a contact surface located radially outward from the shaft portion when viewed from the longitudinal direction. The cover portion is biased in the removal direction by the biasing member, and is biased until the end on the removal direction side contacts the contact surface. The joint member according to claim 8.

12. The locking member and the cover portion are formed integrally. The joint member according to claim 11.

13. A joint member according to any one of claims 1 to 12, The mesh frame to which the first member is fixed, The second member is fixed to the tip of the handle, Having A dip net.

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