JP2003144008A - Spoon net - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a spoon net having excellent operating efficiency and economical efficiency. SOLUTION: This spoon net comprises a handle part 2 having a first cylindrical body 10 provided with an internal thread member 20 composed of a glass- fiber reinforced resin on the inner periphery of an end on the tip side and a net frame part 1 connected through a connecting member 3 freely demountably screwed into the internal thread member 20 to the handle part 2.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a ball net used for fishing.

[0002]

2. Description of the Related Art In fishing boats and the like, a ball net is often used such that when a fish is caught by a fishing rod, a net is put out from the boat rim and the fish is scooped into the net. This ball net has a metal annular frame portion, a bag-like net portion fixed by being fitted into the frame portion, and a handle portion connected to the frame portion. This handle part is made by connecting a plurality of cylindrical bodies in a sequential manner, and the cylindrical body on the tip side can be stored in the cylindrical body on the hand side in sequence. The body is housed in the tubular body on the side of the hand and is in a compact state.

The handle portion and the frame portion are generally detachably connected to each other. Specifically, a female screw member is attached to the end portion of the cylindrical body located on the tip end side of the handle portion. A structure is adopted in which a connecting member having a male screw portion having a frame portion fixed to the member is screwed.

[0004]

The female screw member of the handle portion of such a net has a sufficient strength when the handle portion supports the frame portion and the net portion for scooping fish. Required. In addition, since the nets are used for boat fishing, it is necessary to take measures against rust. Therefore, a stainless steel alloy or the like has been used as a material for forming the conventional female screw member.

However, when a female screw member is manufactured from such a stainless material, the weight of the member has a constant weight due to the specific gravity of the material. The ball net is for extending the handle part to scoop fish into the net part, and it is preferable to make the tip side part as light as possible to improve operability. In addition, it is expensive to manufacture the female screw member from the stainless material.

An object of the present invention is to provide a ball net having excellent operability by reducing the weight of the tip side portion. Also,
Another object of the present invention is to provide a ball net which is excellent in economic efficiency.

[0007]

The ball net according to the first aspect of the present invention is a ball net for scooping in fish and has a cylindrical body having a female screw member made of glass fiber reinforced resin mounted on the inner periphery of the tip end side end. And a net frame portion that is detachably engaged with the female screw member. In this ball net, the net frame portion is connected to the female screw member made of glass fiber reinforced resin, and the tip end side of the handle portion does not become heavy and is excellent in operability. Further, by manufacturing the female screw member from a predetermined material, the member can be manufactured at a relatively low cost, and the economy is excellent. The mechanical strength can be sufficiently ensured by using the synthetic resin material in which such reinforcing fibers are interposed.

The ball net of the invention 2 is the ball net of the invention 1,
The glass fiber reinforced resin forming the female screw member is glass fiber impregnated with PBT resin. In this ball net,
By forming the female screw member from a predetermined material, specifically, it is possible to compress the weight and the manufacturing cost to about one tenth as compared with the case where a similar female screw member is manufactured from a stainless material or the like. . Further, almost the same mechanical strength and durability can be obtained.

A ball net according to a third aspect of the present invention is the ball net according to the first or second aspect, in which the female screw member is a cylindrical member, and a plurality of longitudinal grooves extending in the axial direction at circumferential intervals on the outer peripheral surface thereof. , And / or a plurality of lateral grooves extending in the circumferential direction at intervals in the axial direction are formed. In this ball net, a predetermined groove is formed on the outer peripheral surface that is a fixing surface to the handle portion in the female screw member attached to the inner circumference on the tip side of the handle portion. The adhesive force when adhesively fixing to the portion is improved. Further, by such a groove, even when the internal thread member is internally provided to integrally manufacture the handle portion, the fixing force between the handle portion and the internal thread member is sufficiently improved. That is, such a handle portion is generally manufactured by winding a prepreg material obtained by impregnating a synthetic resin into a reinforced resin such as carbon fiber or glass fiber around a core material and firing the core material. It is also possible to manufacture the handle part by winding the prepreg material around the female screw member directly inside the core material, winding the prepreg material around the outer periphery of the core material, and firing it.

The ball net according to the invention 4 is a ball net for scooping fish, and has a handle having a tubular body in which an internal thread portion is directly threaded on the inner periphery of the tip end side, and detachable to the internal thread portion. And a net frame portion that is screwed into. In this bead net, a thread is directly formed inside the distal end side of the tubular body that constitutes the handle, particularly the tubular body that is located closest to the distal end side, and is a female thread portion. Then, the net frame portion is connected to the female screw portion. Unlike the conventional bead net, a separate metallic female screw member is not attached, and the tip side of the handle portion does not become heavy, so the operability of the bead net is improved. Further, by forming the female screw portion directly on the material of the tubular body itself, it is economically advantageous, and the work step of separately attaching parts can be eliminated. Further, the net frame portion is directly connected to the tubular body itself that constitutes the handle portion, and the mutual connecting force is also improved. This female threaded portion is formed by directly cutting the inner peripheral surface of the distal end side of the tubular body that forms the handle and then threading it.

The ball net of the invention 5 is the ball net of the invention 4,
The tubular body is formed by firing a prepreg material obtained by impregnating reinforcing fibers with a synthetic resin. And this tubular body,
It has a main prepreg portion forming a tubular portion and an auxiliary prepreg portion laminated on the main prepreg material portion on the inner peripheral surface of the tip portion, and the female screw portion is formed by screwing the auxiliary prepreg portion.

In this ball net, the cylindrical body forming the handle portion is made of a prepreg material, so that weight reduction and mechanical strength are sufficiently improved. As the main prepreg forming the tubular portion, for example, carbon fiber or glass fiber impregnated with epoxy resin or the like is used. Further, by using an auxiliary prepreg which is different from the main prepreg forming the tubular portion and which is easy to be screwed, on the inner peripheral surface on the tip side forming the female screw, the screwing operation is also facilitated. For example, as the auxiliary prepreg, a prepreg obtained by impregnating a non-woven fabric such as polyester with an epoxy resin may be used.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION [First Embodiment] As shown in FIG. 1, a ball net adopting the first embodiment of the present invention includes a net frame portion 1 in which a net is attached to an annular frame, and a net. It has a handle portion 2 connected to the frame portion 1. The mesh frame portion 1 is a frame portion formed by bending a metal linear member made of a stainless alloy, a titanium alloy, or the like into an annular shape, and a substantially cylindrical mesh portion formed by braiding a thread made of nylon fiber or the like in a mesh shape. It is a combination of and. The frame portion of the mesh frame portion 1 is connected to the connecting member 3 at a part of its circumference.

For example, the connecting member 3 is composed of a pair of half-divided members, and is housed in the frame member with both end portions of the frame portion bent. Then, it has a male screw portion (see FIG. 2) that is screwed into a female screw member described later. Further, the frame portion has a groove portion formed on the annular outer peripheral surface and opened in the outer peripheral direction, and a metal or nylon core wire in which the opening edge of the mesh is locked is fitted and tightened in this groove portion, The mesh part is fixed to the frame part.

The handle portion 2 has the first tubular body 1 in order from the tip side.
It is a part formed by sequentially connecting the 0th to 4th tubular bodies 14 in a drawing manner. Each tubular body is a tapered tubular member produced by winding a fiber-reinforced resin obtained by impregnating a reinforcing resin such as carbon fiber or glass fiber with a synthetic resin around a core material and firing the core material. The rod base side outer peripheral surface and the tip side end inner peripheral surface of the first tubular body 10 to the fourth tubular body 13 are fitting parts, respectively, and are sequentially attached to the tips of the rod base side tubular bodies. The cylindrical body on the tip side can be fitted and connected and fixed. Also, the 4th closest to you
A bottom plug 14 is detachably attached to the proximal end of the tubular body 13.

As shown in FIGS. 2 and 3, the tip end side end portion of the first tubular body 10 located closest to the tip end side of the handle portion 2 is
A substantially cylindrical female screw member 20 is attached. The female screw member 20 has a threaded portion on the inner peripheral surface, and on the outer peripheral surface, a plurality of vertical grooves extending in the axial direction at intervals in the circumferential direction and a plurality of lateral grooves extending in the circumferential direction at intervals in the axial direction. Are formed. The female screw member 20 is formed of a glass fiber reinforced resin material obtained by impregnating glass fiber with PBT resin,
The axial length is about 15 to 30 mm. The content of the glass fiber can be appropriately set, but it is preferable to set the content of the glass fiber to be about 20 to 40% by weight in consideration of the physical strength. The vertical groove and the horizontal groove may be formed by grinding the outer peripheral surface after forming the cylindrical member, and specifically, set to have a depth of about 0.2 to 0.4 mm.

In this embodiment, the vertical groove and the horizontal groove are used together, but any one of them may be formed. The female thread member 20 may be inserted from the end on the tip end side after the first tubular body 10 is manufactured and fixed by adhesion with an adhesive or the like. In such a case, the predetermined groove serves as an adhesion reservoir and improves the fixing force. Moreover, you may make it internal and fix integrally at the time of manufacture of the 1st cylindrical body 10 by the following methods.

As shown in FIG. 4, first, a mandrel (core material) 100 having a predetermined taper is prepared, and a female screw member 20 formed in advance is arranged at the end portion on the tip side. Then, after applying a release material or the like to the outer periphery of the mandrel 100 as needed, the prepreg material P is wound around the female screw member 20 and the outer periphery of the mandrel 100. The prepreg material P is obtained by orienting carbon fibers or glass fibers in one direction and impregnating it with a synthetic resin such as an epoxy resin, and is processed into a sheet or tape. If necessary, a plurality of different prepreg materials having different orientations of the reinforcing fibers are wound a plurality of times, and these are fired in a furnace.

After firing, only the mandrel 100 is pulled out and subjected to a necessary surface treatment or the like to manufacture the first cylindrical body 10. In this way, the female screw member 20 is preliminarily included in the first
By manufacturing the tubular body 10, the female screw member 20 and the first tubular body 10 are integrally and fixedly adhered to each other particularly by the groove on the outer peripheral surface of the female screw member 20. In the ball net having such a structure, the net frame portion 1 is connected to the female screw member 20 made of glass fiber reinforced resin via the connecting member 3. Since the female screw member 20 is lightweight, the tip side of the handle portion 2 is heavy. It has excellent operability without being changed. In addition, such an internal thread member 20 is relatively inexpensive and excellent in economy. By using a synthetic resin material having such reinforcing fibers interposed, the mechanical strength of the female screw member 20, which imposes a heavy load, can be sufficiently secured.

[Second Embodiment] Similarly to the first embodiment, the ball net adopting the second embodiment of the present invention also has a net frame portion 1 in which a net is attached to an annular frame, and a net frame portion 1. And a handle portion 2 connected to. Further, the frame portion of the net frame portion 1 is connected to the connecting member 3 at a part of its circumference, and the connecting member 3 is a female screw portion 10 of a first tubular body 10 described later.
It has a male screw portion (see FIG. 5) screwed into a. Also,
The frame portion has a groove portion formed on the outer peripheral surface of the ring and opened in the outer peripheral direction, and a metal or nylon core wire with which the opening edge of the mesh is locked is fitted into this groove portion and tightened. Is fixed to the frame part.

As shown in FIG. 5, a thread is directly screwed into the material itself in the tip end portion of the first tubular body 10 located at the most tip end side of the handle portion 2, and the female thread portion is formed. 10a
Has become. The first tubular body 10 is manufactured, for example, by winding a sheet-shaped or tape-shaped processed prepreg material around a mandrel (core material) and firing these materials. Then, after being manufactured into a tubular shape, the inner peripheral surface is threaded from the end portion on the front end side to form the female screw portion 10a.

Further, in particular, it is also possible to wind an auxiliary prepreg around the inner periphery of the first tubular body 10 on the tip side and stack them, and form the female screw portion 10a in this portion. That is, FIG.
As shown in FIG. 3, a tapered cylindrical mandrel 100 having a predetermined taper is prepared, and a nonwoven fabric made of polyester is impregnated with epoxy resin in a part of the tip end side of the mandrel 100 to be processed into a sheet-like auxiliary prepreg P2. To wind. Then, the main prepreg P1 in which carbon fiber or the like is impregnated with epoxy resin is wound around the entire mandrel 100 on the outer periphery thereof. After this is fired to integrate both prepregs, the mandrel 100 is pulled out. After that, as schematically shown in FIG. 7, the inner peripheral surface on which the auxiliary prepreg P2 on the front end side is laminated is threaded to form the female screw portion 10a. Such an auxiliary prepreg P2 can be easily scraped off, and by partially using it, the internal thread portion 10a can be easily threaded.

In the ball net thus constructed, the thread is directly formed inside the tip end side of the first tubular body 10 which is the most tip end side forming the handle portion 2 and is the internal thread portion 10a. . It is not necessary to attach a separate part to the tip side of the handle portion 2, weight on the tip side can be suppressed, and operability of the net can be improved. Further, by forming the female screw portion 10a directly on the material itself of the first tubular body 10, it is excellent in economic efficiency, and the work process of separately attaching parts can be eliminated. Further, the first cylindrical body forming the handle portion 2 and the net frame portion 1 are directly connected, and the mutual connecting force is also improved.

[0024]

EFFECTS OF THE INVENTION According to the ball net according to the present invention, the operability is improved by reducing the weight of the tip side portion and the economy is excellent.

[Brief description of drawings]

FIG. 1 is an overall view of a ball net adopting a first embodiment of the present invention.

FIG. 2 is a cross-sectional view of the tip side portion of the first tubular body 10 of the handle portion 2 of FIG.

FIG. 3 is a reference diagram of FIG. 2.

FIG. 4 is a diagram showing an example of a method for manufacturing the first tubular body 10.

FIG. 5 is a cross-sectional view of a tip side portion of the first tubular body 10 of the handle portion 2 in the ball net adopting the second embodiment of the present invention.

FIG. 6 is a view showing still another method of manufacturing the first tubular body 10 of FIG.

7 is a schematic view of the inner peripheral surface on the tip side of the first cylindrical body 10 manufactured by the manufacturing method of FIG.

[Explanation of symbols]

1 Net frame 2 handle 3 connecting members 10 to 13 First to fourth cylindrical bodies 10a female screw part 20 Female screw member

Claims (5)

[Claims] 1. A ball net for scooping fish, which is a tubular body having a female screw member made of glass fiber reinforced resin mounted on the inner periphery of the tip end side, and a detachable member for the female screw member. A ball net with a net frame that can be screwed freely. 2. The ball net according to claim 1, wherein the glass fiber reinforced resin forming the female screw member is glass fiber impregnated with PBT resin. 3. The female screw member is a cylindrical member, and a plurality of vertical grooves extending in the axial direction at intervals in the circumferential direction on the outer peripheral surface, and / or extending in the circumferential direction at intervals in the axial direction. The ball net according to claim 1, wherein a plurality of lateral grooves are formed. 4. A ball net for scooping in fish, comprising a handle having a tubular body with an internal thread portion directly engraved on the inner periphery of the tip side end, and detachably screwed to the internal thread portion. A ball net with a net frame. 5. The tubular body is formed by firing a prepreg material in which reinforcing fibers are impregnated with a synthetic resin, and the tubular body comprises a main prepreg portion forming a tubular portion and an inner circumference of a tip portion. The ball net according to claim 4, further comprising an auxiliary prepreg portion laminated on the main prepreg material portion in a surface, and the female screw portion is formed by threading the auxiliary prepreg portion.