JPS6170934A - Formation of screw in fishing rod - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a method of forming threads in a fishing rod, and more particularly, to a method of forming threads in a fishing rod made of a prepreg made of high-strength fibers containing tΩ of synthetic resin.

(Prior art) Conventionally, when threading a fishing rod made of prepreg made of high-strength fiber impregnated with synthetic resin, a cylindrical adapter with a thread on the outer or inner periphery is used, and this adapter is attached to a pre-formed fishing rod. The adapter is fixed to the butt end or intermediate connection part of the fishing rod with adhesive, and the butt plug is attached to the fishing rod or the connection part is connected through the adapter.

(Problems to be Solved by the Invention) However, since this conventional method uses a cylindrical adapter formed separately from the fishing rod, it not only increases the weight of the fishing rod, but also causes There is a problem in that it is cumbersome to install screws at fixed positions, and when the fishing rod is used for a long period of time, the adhesive deteriorates and the adapter may be pulled out of the fishing rod by itself. Alternatively, there is a problem in that the adapter may become loose at the joint where it connects to the fishing rod.

The present invention solves the problems in the conventional method that the provision of screws increases the weight of the fishing rod, the problem that it is unsightly to provide screws in certain places, and the adapter with screws falling off or rattling. This is an attempt to solve the problem of attaching the adapter, and eliminates the conventional adapter.
Using a tape made of high-strength fibers impregnated with synthetic resin, this tape forms a thread that is integrated with the rod body that makes up the fishing rod, reducing the increase in weight compared to those using the adapter described above. This makes it possible to make the fishing rod lighter, to form threads reliably at certain points, and to reliably maintain the connection of the threaded parts even after long-term use. That's what I did.

(Means for Solving the Problems) Accordingly, the present invention provides a method for forming a thread in a fishing rod made of prepreg made of high-strength fiber impregnated with a synthetic resin, which A tape made of high-strength fibers impregnated with a synthetic resin is spirally wound at a predetermined winding pitch to form a thread body protruding in steps from the circumferential surface of the rod body, When the main body is pressurized and fired, the thread element is integrally connected to the rod main body to form a thread.

(Function) An unfired tape is spirally attached to the outer periphery of the unfired rod body, and the synthetic resin in the tape and the rod body is once softened by firing, and then hardened to form a screw made of the tape described in 1lii. The mountain element body is integrated with the rod body.

(Example) Next, an embodiment of the method of the present invention will be described based on the drawings.

The first embodiment includes a fixed receiver (31) and a fixed receiver (31).
A movable push body (32) of a fishing rod (1) holding a reel root (3) consisting of a movable push body (32) movable against
) A screw (2) is formed on the outer periphery of the holding part.

As shown in Fig. 2, the thread (2) is formed by first winding a prepreg made of high-strength fibers impregnated with synthetic resin around the outer periphery of a loosely conical core (4) to form the rod body (10). It forms.

Next, a tape (20) made of aligned high-strength fibers impregnated with synthetic resin is placed around the outer periphery of the rod body (10) as shown in Figure 3.
A spiral reinforcement B (
11), and then converging the tape (20) at the end of the winding, bringing both ends in the width direction toward the center, or twisting the tape (20) in the length direction. The tape is deformed into an x, ■ shape, in other words, into a substantially U-shaped cross section or a substantially circular shape, and is wound spirally at a constant winding pitch, and is narrower than the width of this tape (20) and has a tape thickness. The thread element body (21), which is higher than that, is attached to the rod body (10
) is formed on the outer periphery of the intermediate part.

Then, as shown in FIG. 4, a claw part (5) having an axial slit and an internal thread corresponding to the thread body (21) is expanded in diameter from the slit part as shown in FIG. Fits into the thread element body (21), and connects the 1TiI thread element body (2
1) is secured by wrapping cellophane tape (not shown) in a spiral around the outside of the rod body (10) except for the claw portion (5) and the inner cylinder portion of the outer periphery. The rod body (10) and the reinforcing layer (11) are pressurized, heated in a heating furnace in this pressurized state, and by this heating, the rod body (
10), the synthetic resin in the reinforcing layer (11) and thread body (21) is once softened and hardened to form reinforcement B (11).
) and the thread body (21) are integrally bonded to the synthetic resin in the rod body (10) to form a fishing rod (
A thread (22) is formed on the outer periphery of the intermediate portion of 1).

Thereafter, the core bar (4) is removed, the cellophane tape is peeled off, and the claw portion (5) is removed.

The No. 1111 tape (20) is formed into an elongated shape by gathering ultrafine high-strength fibers in parallel and impregnating the high-strength fibers with a synthetic resin of the same type as the synthetic resin used in the prepreg for forming the rod body.

The height and pitch of the thread body (21) formed by this tape (2o) are arbitrarily determined by changing the deformation thickness, winding pitch, and tape thickness in the width direction of the tape (20). It is.

Furthermore, although the claw portion (5) does not necessarily have to be used, by using the inner tube (5) to protect the screw thread body (21), it can be easily secured when bound with cellophane tape. This has the advantage that it is possible to reliably prevent the screw thread element body (21) from being deformed by the binding force, and also that the screw thread element body (21) can be shaped to form a highly accurate screw thread. in this case,
The claw portion (5) is made of synthetic resin, but may be made of other materials.

In addition, if the claw part (5) is not used, the screw thread (22)
After forming, the threaded portion is ground to a high degree of precision. Alternatively, instead of the claw portion (5), for example, a wire or thread having a square cross section is wound around the thread groove portion of the thread element body (21) to fill the thread groove portion, and the cellophane tape is applied to the outer periphery of the wire rod or thread. It is also possible to wind the wire rod and remove the wire rod or thread after firing.

The thread formed on the outer circumference of the intermediate mζ of the fishing rod as described above has a threaded ring (3) for operating the movable pusher (32) as shown in FIG.
3) are screwed together, and the rotation of the screw ring (33) moves the movable pusher (32) forward and backward in the axial direction.

In addition, (30) in FIG. 1 is the butt plug of the fishing rod (1).

Further, in the second embodiment, a thread (2) is formed at the attachment site of the fishing line guide (8) on the fishing rod that holds the fishing line guide (6).

As in the case of the first embodiment, the method for forming this thread is to spirally wrap the tape (20) around the outer periphery of the rod body (10), and to apply a reinforcing layer to the outer periphery of the rod body (10). (11
), and then the tape (2
0) is deformed in its width direction and wound spirally at a constant winding pitch to form a thread element (21), and a claw part (5) is attached to the thread element (21). After fitting and binding with cellophane tape, it is fired to integrally connect the thread body (21) with the rod body (10).

In this case, a fishing line guide (6) having an internal thread is screwed onto the threaded portion as shown in FIG.

Further, in the third embodiment, a thread is formed on the inner peripheral surface of the fishing rod.

As shown in FIG. 7, for example, the internal thread is formed by winding a wire rod (7) having a rectangular cross section around the outer periphery of the core metal (4) in a spiral shape at a constant winding pitch. Core metal (4)
The tape (2
o) spirally wound, and then the tape (20) at the end of the winding is deformed in its width direction and spirally wound in the groove of the winding wire (7) as shown in Fig. 8. Then, as shown in FIG. 9, the prepreg is wound to form the rod body (1o).

After that 1. Cellophane tape is wound spirally around the outer periphery of the rod body (1o) and bound with a number, and while the rod body (1o) is under pressure, it is heated in a heating furnace.
11) The synthetic resin in the thread element (21) is once softened and then hardened to form the thread element (11) and reinforcement f.
The synthetic resin in f1 (11) is integrally combined with the synthetic resin in the rod body (1o) to form a thread (22) on the inner peripheral surface of the fishing rod.

In this case, the internal thread may be provided on the inner peripheral surface of the butt end of the fishing rod, and the butt plug may be attached by screwing, or the fishing rod (
1) is provided on the inner circumferential surface of the joint, and the small-diameter rod body and the large-diameter rod body are screwed together.

In the case of the third embodiment, as shown in FIG. 81), the thread body (21) may be formed by winding the tape (20) while deforming it in the width direction.

In this case, after firing, the core metal (4) is removed, and then the cylinder core (8) is removed by rotating it in the unscrewing direction with respect to the fishing rod.

In addition, in the embodiment described above, a tape is used to reinforce the rod body (1-0) by wrapping it around the outer circumferential surface or inner circumferential surface of the rod body (10), and a part of this tape is The thread element body (21) was formed by deforming it in the direction and winding it at a constant winding pitch.In addition to the reinforcing tape, a tape for forming a screw pixel body was provided, and this tape The thread element body (21) may be formed by.

Further, in the case of the second and third embodiments, the outer part (5), the wire rod (7), and the cylinder core (8) are not necessarily necessary, as in the case of the first embodiment.

(Effects of the Invention) As described above, the present invention uses a high-strength tape made of high-strength fibers impregnated with a synthetic resin, and uses this tape for a fishing rod made of a prepreg made of high-strength fibers impregnated with a synthetic resin. A thread body is formed on the circumferential surface of the rod body by winding it in a spiral shape at a predetermined winding pitch to form a thread element that protrudes stepwise from the circumferential surface of the rod body, and when the rod body is pressure-fired, the thread Since the thread is formed by integrally connecting the thread body to the rod body, compared to the conventional method of forming the thread using a cylindrical adapter, the increase in weight due to forming the thread can be reduced, which makes the fishing rod easier to use. Moreover, since the threads are formed by winding the tape, even when installing a thread in a fishing rod of 8F1 quality, the thread can be easily and accurately placed at a fixed position relative to the fishing rod. It can be formed into

Furthermore, since the high-strength tape is used, it is possible to form a strong screw, and damage to the screw can be reliably prevented, and the screw can be formed with a simple operation that only increases the number of tape winding steps. It is easy to form 7 pieces.

Furthermore, since the tape thread body is integrally connected to the rod body by pressure firing of the rod body, long-term IL is achieved.
It is possible to reliably maintain the connected state of the threaded portions even after long periods of use, significantly improving durability.

[Brief explanation of the drawing]

FIG. 1 is an enlarged cutaway sectional view showing an example of the use of a screw formed by the method of the present invention, FIGS. 2 to 4 are explanatory diagrams showing an example of the method of the present invention, and FIGS. FIG. 6 is an enlarged cutaway sectional view with a part omitted showing another usage example, and FIGS. 7 to 10 are explanatory views showing another forming method. (1)... Fishing rod (10)... Rod body (2)... Screw (20)... Tape

Claims (1)

[Claims] A method of forming a thread in a fishing rod made of prepreg made of high-strength fibers impregnated with a synthetic resin, the method comprising: attaching a tape made of high-strength fibers impregnated with a synthetic resin to the circumferential surface of the rod body constituting the fishing rod; The thread element is wound spirally at a winding pitch to form a thread element that protrudes stepwise from the circumferential surface of the rod body, and when the rod body is pressure fired, the thread element is integrated into the rod main body. A method for forming a thread in a fishing rod, characterized in that a thread is formed by joining the threads together.