KR20070011072A - Drawing type rod - Google Patents

Abstract

A drawing type rod is provided to prevent adhesion state of a joint part of a small diametric rod and a large diametric rod, and to improve an operation feeling in a joint operation. The drawing type rod includes a joint part(B) for holding a small diametric rod(1) with respect to a large diametric rod(2) in an extension state. The joint part comprises a straight cylindrical part(2B) formed on the large diametric rod and having a contract surface that holds a regular diameter, and a protrusion part(1a) formed on the small diametric rod and coming in contact with the contact surface of the straight cylindrical part. A surface layer of the protrusion part that comes in contact with the straight cylindrical part comprises a prepreg formed by impregnating a reinforcing fiber mixed and arranged in a rod axis direction with resin.

Description

Pulling Pole {DRAWING TYPE ROD}

(A) is a longitudinal side view which shows the state before storing a small diameter side pole in the large diameter side pole, (b) is a longitudinal side view which shows the state which pulled out the small diameter side pole from the large diameter side pole, (c) is A perspective view showing the protruding surface.

The figure which shows the orientation direction of the reinforcing fiber of the surface layer of the small diameter side pole and the large diameter side pole.

3 is a perspective view showing a state in which a prepreg is wound on a mandrel to produce a small diameter side pole.

4 is a perspective view showing a state in which a prepreg is wound on a mandrel to produce a large diameter side pole.

It is a side view which shows the test apparatus of the fixed state of the small diameter side pole and the large diameter side pole.

Fig. 6 is a diagram showing the results of measuring resistance at extension.

The figure which shows the result of having measured return force after extension.

(A) is a side view which shows the state in which four protrusion parts were formed in the pole base end of a small diameter side pole, (b) is a rear view in (a).

9 is a perspective view showing a state in which three protrusions are provided and a notch is formed between each protrusion.

Fig. 10 shows a state in which the mounting target of the straight normal portion and the projection portion is changed, (a) is a longitudinal side view showing a state before storing the small diameter side pole in the large diameter side pole, and (b) the large diameter side pole in the large diameter side. Longitudinal side view showing the state pulled out from the pole.

11 shows another embodiment of the protruding portion formed at the pole end of the small diameter side pole, (a) is a longitudinal side view, and (b) is a rear view.

12 is a longitudinal side view showing a state in which the straight normal portion and the inclined contact surface are formed by replacing each other, and the small diameter side pole is extracted from the large diameter side pole.

It is a longitudinal side view which shows the state which changed the attachment object of the straight normal part and the projection part in FIG. 11, and the state which pulled out the small diameter side pole from the large diameter side pole.

<Explanation of symbols for the main parts of the drawings>

1: small diameter side pole 1A: inclined contact surface

1B: pole proximal end 1a, 2E: protrusion

2: large diameter side pole 2A: inclined support surface

2B: Straight Normal Part 8B: Prepreg

B: seam X: pole axis

θ: predetermined inclination angle c: reinforcing fiber

This invention is a state which accommodates a small diameter side pole in a large diameter side pole, and switches the state of the small diameter side pole to the state which extracted the small diameter side pole from the large diameter side pole from the storing state, and the extracted extended state It relates to a pull-out pole for installing a joint to maintain the.

The inclined surface is formed in contact with the outer circumferential surface of the pole end end side of the small diameter side pole and the inner circumferential surface of the pole front end side end of the large diameter side pole in contact with each other. . The inclined surfaces of the inclined surfaces maintain the elongated state of the small diameter side pole.

In the case where the constitution which maintains the elongation state of the small diameter side pole in the pressure contact state is adopted in this way, when water or the like enters the pressure contact surface, a so-called fixed state appears. That is, even when the small diameter side pole is to be returned from the stretched state to the contracted state, since both inclined surfaces are strongly adhered at the pressure welding site, even if the normal return force is applied, the stretched state cannot be released. Occurs.

Therefore, in this case, the pole cannot be stored, and the end is troubled.

In view of this point, a small protrusion is formed on the outer circumferential surface of the rear end of the small diameter pole tube as the small diameter side pole and press-contacted with the inner circumferential surface of the tip of the large diameter pole tube as the large diameter side pole, and water is formed between the inner and outer peripheral surfaces. There existed a structure which forms a discharge path so that it may not enter (refer patent document 1).

<Patent Document 1> Japanese Utility Model Registration Publication No. 2569413 (Paragraph No. [0009] [0012], Fig. 1)

Certainly, it can be said that the adhesion phenomenon is promoted when moisture enters the joint portion, but it is thought that the adhesion phenomenon is not only its cause. That is, as shown in the above-mentioned prior art, the seam is caused by the inclined inner peripheral surface formed on the pole tip end side of the large diameter side pole and the inclined outer peripheral surface formed on the pole base end side of the small diameter side pole. When both inclined surfaces are pressed, the pole end opening of the large diameter side pole receives the force in the extending direction, and the pole proximal end of the small diameter side pole receives the contracting force and is elastically deformed with each other. Done. Therefore, since the pressure welding is performed in an elastically deformed state, it becomes a stronger bonding state and it is difficult to return to the original state.

The state of the art in which the pressure contact state is achieved in the state in which the protrusion is pressed against the inclined surface on the other side is also considered to be no exception. When the joint operation is performed, the small protrusion is pressed against the inclined surface on the opposite side in a short stroke and in a short stroke, Compared with not forming a small protrusion, even if it is the structure which is hard to fall into a sticking phenomenon, when the joint operation was performed, it did not eliminate the point which becomes a press contact state at the moment, and further improved the joint part.

An object of the present invention is to provide a rod for fishing rods capable of avoiding the fixed state while alleviating such drawbacks and reducing manufacturing burden.

〔Configuration〕

The characteristic constitution of the invention according to claim 1 is to form a joint portion for keeping the small diameter side pole in a stretched state with respect to the large diameter side pole, and the joint portion is formed on one side of the small diameter side pole and the large diameter side pole. And a straight portion having a constant diameter and a contact surface, and a protrusion portion formed on the other side of the small diameter side pole and the large diameter side pole and in contact with the contact surface of the straight normal portion, The surface layer which contacts the straight normal part of the said protrusion part consists of the prepreg which impregnated resin in the reinforcement fiber group which mixed and arranged along the longitudinal axis direction, and the effect of this is as follows. Same as

〔Action〕

By forming the straight normal part in the joint part, even when the extension operation is performed rapidly, the state where the protrusion part and the straight normal part are in contact with each other appears, so that the operating force is alleviated by the operation resistance at the protrusion part and the straight normal part. Since the constant operation resistance continues by the presence of a straight normal part, the state is recognized also by an angler, and it is less likely to fall into a fixed state suddenly.

Moreover, since the projection surface part which consists of prepregs is employ | adopted as the counterpart side which contacts a straight normal part, the counter force to abrasion etc. is strong compared with forming the small protrusion by resin etc.

However, the prepreg containing the reinforcing fibers is not simply formed, and the mixing direction of the reinforcing fibers is set in the direction along the major axis, so that the warpage and deformation of the reinforcing fibers in the circumferential direction are compared. It's easy. For example, when the cross section of the pole is to be deformed in an elliptical shape, when the reinforcing fibers are arranged in the circumferential direction, the cross section becomes difficult to deform from the point that the reinforcing fibers exert a counter force and try to prevent the deformation. It can be pointed out that the reinforcing fibers mixed and arranged in the long axis direction do not have a large strain preventing force when the cross section is to be deformed in an ellipse, as compared with the case in which the reinforcing fibers are arranged in the circumferential direction. This means that the protrusions tend to bend in the radial direction, so that when the protrusions move in contact with the straight normal part, the protrusions cause some bending, so that the protrusions and the straight normal part are strongly in contact. Is avoided. As a result, when the small diameter side pole is pulled out from the large diameter side pole, the extraction resistance becomes stable.

〔effect〕

Therefore, by modifying the point where the straight normal part is formed, the counterpart in contact with the straight normal part, and the point where the protrusion part is formed by the prepreg, the fixing phenomenon can be prevented in advance. In addition, it was possible to improve the feeling of operation at the time of joint operation.

The characteristic structure of this invention concerning Claim 2 is the point which forms the said protrusion part in multiple places along the circumferential direction of a pole, The action effect is as follows.

[Action effect]

The same effect as the invention according to claim 1 is obtained. And since the protrusion is not formed over the entire circumference of the circumferential direction, the extraction resistance when the small-diameter pole is pulled out from the large-diameter pole is not too large, and the protrusion is easily made to bend in the radial direction. It is structured to do.

Therefore, even if there is some fluctuation | variation in the inner surface diameter of a straight normal part, a curvature part fluctuates a little curvature in response to the change of the diameter, and tracks it, and keeps extraction resistance constant.

A characteristic configuration of the invention according to claim 3 is to form a conical inclined support surface in a state adjacent to the pole tip of the straight normal portion on the inner circumferential surface of the large diameter side pole, and the small diameter side pole The conical inclined contact surface which contacts the said inclined support surface on the outer peripheral surface is formed, The effect is as follows.

[Action effect]

In the end where the contact between the protruding portion and the straight normal portion continues, the inclined contact surface comes into contact with the inclined support surface. That is, a substantially constant tensile resistance is sensed in the state where the protrusion part contacts the straight normal part. In the case where this substantially constant tensile resistance is in operation, when the inclined contact surface comes into contact with the inclined support surface, suddenly, the tensile resistance increases, and the large resistance is detected by the angler, and it can be detected that the positive end position has been reached. have.

As a result, it is possible to prevent pulling out too much and to prevent the occurrence of sticking phenomenon.

The characteristic constitution of the present invention according to claim 4 is to form a pole proximal end on the pole proximal side of the inclined contact surface on the outer circumferential surface of the small-diameter side pole, and to install the protruding portion on the pole proximal end of the pole proximal end. The outer diameter at the proximal end is set to a smaller diameter than the outer diameter of the long proximal end of the inclined contact surface and the outer diameter of the protruding portion, and the effect thereof is as follows.

[Action effect]

That is, the outer circumferential surface of the pole proximal end does not contact the straight normal portion or the inclined base surface because it is smaller than the outer diameter of the pole proximal end of the inclined contact surface or the outer diameter of the protruding portion. Therefore, in the state in which the small diameter side pole is pulled out from the large diameter side pole, only the protrusion formed on the long base end of the pole base end portion is in contact with the straight normal portion until the inclined contact surface contacts the inclined support surface. For this reason, even if the direction to be pulled out is somewhat inclined with respect to the pole axis, the contact state with the straight normal part due to the inclined state can be adjusted by the deformation of only the protrusion, so that the operability at the time of extracting operation This improves.

In addition, since the long base end that supports the protrusion at the long base end position is a small diameter, the cross-sectional coefficient is small, and the pole proximal end is connected to the inclined contact surface due to the reaction force received at the straight normal portion in contact with the protrusion. The proximal end is a proximal end, and the protruding part located on the pole proximal end is used as the proximal end to cause warpage like a cantilever beam to easily displace the protruding part in the radial direction. Therefore, even if there exists a fluctuation | variation in the diameter dimension of a straight normal part, a contact state of predetermined surface pressure can be maintained by displacement of a protrusion part.

The characteristic constitution of the invention according to claim 5 is that the inclined contact surface and the surface layer of the pole proximal end are composed of prepregs having a group of reinforcing fibers mixed and arranged along the circumferential direction orthogonal to the pole axis. The effect is as follows.

[Action effect]

As also described in the terms of the action according to claim 1, when the pole is subjected to radial force and the cross section of the pole is to be deformed in an elliptical shape, the reinforcing fibers arranged in the circumferential direction exhibit the opposing force to prevent deformation. From this, the cross section becomes difficult to deform.

That is, when the small diameter side pole is pulled out from the large diameter side pole, only the protruding portion contacts the straight normal portion, and the pole proximal end and the inclined contact surface supporting the protruding portion are formed to have a smaller diameter than the protruding portion. It is not supported from the inner circumferential surface of.

In this case, the long proximal end portion is configured to bend easily, but adopting the arrangement configuration of the reinforcing fiber in which the inclined contact surface and the proximal proximal end are difficult to deform prevents the function of supporting the protruding portion from being greatly reduced. Therefore, when a small diameter side pole is pulled out from a large diameter side pole, it is a useful structure.

A characteristic constitution of the present invention according to claim 6 includes a prepreg having a reinforcing fiber group in which the inclined contact surface and the middle layer of the pole proximal end are arranged in a predetermined inclination angle with respect to the pole axis, a reinforcing fiber group of the prepreg, The prepreg which has reinforcement fiber groups mixed and arrange | positioned in the state which becomes symmetrical with respect to the said pole axis line is comprised, and the effect is as follows.

[Action effect]

As described in claim 6, from the necessity of providing a projection at the pole-end of the pole-end portion and supporting the protrusion, the surface layer is arranged in a circumferential direction so that the inclined contact surface and the pole-end portion are difficult to deform. Legs were used. On the other hand, since the intermediate layer of the inclined contact surface and the pole proximal end is formed by superimposing prepregs in which the reinforcing fiber groups are mixed in an inclined state with each other, the shear force acting on the inclined contact surface and the pole proximal end is also applied to the intermediate layer. From the point where the reinforcement pattern located exhibits a holding force, large plastic deformation or the like can be prevented from propagating, and peeling can be prevented from occurring between the outer layer and the inner layer.

<Example>

[First Embodiment]

The structure mainly applied to the middle of the pole on the pulley pole A from the middle pole from the pole 2 to the original pole, especially from the pole 4 and the like, will be described. The pole on the small diameter side will be described as the small diameter side pole 1, and the pole on the large diameter side will be described as the large diameter side pole 2.

In addition, although city is not shown, pole is produced as follows. That is, reinforcing fibers such as carbon fibers are mixed in one direction, and the mixed reinforcing fiber group is impregnated with a thermosetting resin (or thermoplastic resin) such as epoxy to form a prepreg. The prepreg was cut into a mandrel, wound into a mandrel, fired to form a plurality of layers, cut into a predetermined length after firing, and finished with a finish. do.

As the reinforcing fibers constituting the prepreg, glass fibers, aramid fibers, alumina fibers and the like can be used in addition to carbon fibers. Thermoplastic resins such as phenol resins and polyester resins and thermoplastic resins such as PET can be used as the resin.

The structure of the small diameter side pole 1 is demonstrated. As shown in Fig. 1 (a), the small diameter side pole 1 is formed on the outer circumferential surface of the pole proximal end and has a conical inclined contact surface 1A which is largely hardened by the pole proximal side, and the inclined contact surface ( The pole base end part 1B which shows a slightly inclined state (or maintains the same diameter) is provided in the pole base end side of 1A), and the protrusion part 1a is provided in the pole base end of the pole base end part 1B.

As shown in FIG.1 (c), the projection part 1a is provided in three places of the circumferential direction, and is formed by the prepreg similarly to the pole 1. That is, as shown in FIG. 2, to the group of reinforcing fibers (c) which mixed and arranged the surface layer which contacts the straight normal part 2B which the latter of the protrusion part 1a adjoins along the axial direction of the small diameter side pole 1 It consists of the prepreg impregnated with resin.

The structure in the surface layer in the inclined contact surface 1A and the pole base end part 1B is demonstrated. As shown in FIG. 2, the reinforcing fibers c in the prepreg at the inclined contact surface 1A and the pole proximal end 1B are disposed in a state along the pole circumferential direction. . By the structure of excretion of the reinforcing fibers (c), the reinforcing fibers (c) exert an opposing force against the fact that the cross section of the rod becomes horizontally wide and elliptical, thereby preventing the rod from being damaged by being elliptic.

The manufacturing process of the small diameter side pole 1 which consists of the above structures is put together as follows. As shown in FIG. 3, the mandrel 6 is wound around a plurality of main patterns 3 obtained by cutting the prepreg to a length corresponding to the entire length of the small diameter side pole 1. Here, the inner main pattern 3A, the middle main pattern 3B, and the outer main pattern 3C are respectively circumferential directions orthogonal to the pole axis X, directions along the axis X, It is wound in the circumferential direction. The intermediate reinforcement pattern 7 is wound around the pole proximal end of the pole material C formed by winding the main pattern 3. The intermediate reinforcement pattern 7 includes a prepreg 7A having a group of reinforcing fibers c mixed and disposed along a predetermined inclination angle θ with respect to the pole axis X, and the reinforcing fibers c of the prepreg 7A. ) And a prepreg 7B having a group of reinforcing fibers (c) arranged in a symmetrical manner with respect to the group and pole axis (X).

The prepreg tape 16 is wound on the outer layer side of the intermediate reinforcement pattern 7. That is, the prepreg tape 16 formed in the narrow circumferential direction by arranging the group of reinforcing fibers c is closely wound in a state where the tapes do not overlap with each other and in contact with each other to form an intermediate layer. The outer reinforcement pattern 8 as a surface layer is wound on the outer peripheral surface of the pole base end position of the pole material C which wound this prepreg tape 16. As shown in FIG. The outer reinforcement pattern 8 has a shorter width than the prepreg 8A in which the reinforcing fiber c group is mixed in the circumferential direction and the prepreg 8A in the axial direction. The prepreg 8B is mixed together. The wide prepreg 8A comprises a portion 8a forming the inclined contact surface 1A and a portion 8b forming the pole proximal end 1B. The part 8b which forms the pole base end part 1B in the wide prepreg 8A is cut | disconnected in substantially triangular shape, and the pole base end part which becomes smaller diameter than the inclined contact surface 1A by winding in multiple fry. (1B) is formed. In this manner, the pole proximal end 1B is formed, and since a substantially triangular reinforcement prepreg is used, the pole proximal end 1B is easy to be hardened and deformed as much as the pole proximal side forming the protruding portion 1a. To form.

The structure of the large diameter side pole 2 is demonstrated. As shown in Fig. 1 (a), a diameter smaller than the normal diameter of about 5/1000 (about 3.0 / 1000) of the portion that is largely stiffened by the length of the pole relative to the inner circumferential surface of the inclined pedestal portion of the rod-side tip side is about 3.0 / 1000. In addition to forming the inclined support surface 2A indicating), the inner surface diameter is maintained at the same or approximately the same diameter (about 0.3 / 1000) from the longer base end of the inclined support surface 2A to the longer base end. And forming a straight portion 2B, which is slightly smaller than the diameter of the slanted base 2A over a predetermined length from the pole end of the straight portion 2B to the pole end. The inclination guide normal part which has the inclination guide surface 2C is provided, and furthermore, the main body part 2F which has a general broad hardness (about 5/1000) as a pole is formed in the pole base end side rather than the inclination guide surface 2C.

As described above, the joint portion B is constituted by the inclined contact surface 1A, the protruding portion 1a, the inclined support surface 2A, and the straight normal portion 2B of the small diameter side pole 1.

An inner circumferential surface layer as a surface layer in a range spanning the inclined support surface 2A, the straight normal portion 2B, and the inclined guide surface 2C in the large-diameter side pole 2 is illustrated. It consists of the inner reinforcement pattern 9. The inner reinforcement pattern 9 has a prepreg 9A having a group of reinforcing fibers c mixedly arranged along a predetermined inclination angle θ with respect to the pole axis X, and the reinforcing fibers c of the prepreg 9A. ) And a prepreg 9B having a group of reinforcing fibers (c) arranged in a symmetrical manner with respect to the group and pole axis (X). Thus, by arrange | positioning a group of reinforcing fiber c by a bias, the counter force to the load applied from the direction which inclines with respect to the pole axis line X can be raised, and the strength as the joint part B can be improved.

As mentioned above, although the reinforcing fiber c is arrange | positioned with respect to the pole axis X with predetermined inclination angle (theta), it can select from the range of 30 degrees-75 degrees as predetermined inclination angle (theta).

With respect to the mandrel 6 which applied the inner reinforcement pattern 9, three main patterns 3A, 3B, and 3C are wound sequentially, and a skeleton as a pole material is formed. Although illustration is abbreviate | omitted about the process after winding the main pattern 3, as mentioned above, the prepreg tape 16 and the prepreg on the outer layer side of the intermediate reinforcement pattern 7 and the intermediate reinforcement pattern 7 are mentioned. The outer reinforcement pattern as the surface layer is wound on the outer circumferential surface of the pole proximal end position of the pole material C formed by winding the tape 16. As the outer reinforcement pattern, the wide prepreg 8A and the narrow prepreg 8B are not combined like the small diameter side pole 1, and the wide prepreg is wound alone. In addition, the mixing direction of the reinforcing fiber (c) of this wide prepreg becomes along the circumferential direction.

According to the above structure, when the small diameter side pole 1 is accommodated in the large diameter side pole 2 and pulled out in an extended state, first, the protrusion 1a is guided in contact with the inclined guide surface 2C. In addition, it shifts from the inclined guide surface 2C to the straight normal part 2B, and inscribes to the straight normal part 2B. While continuing the pull-out operation of the small-diameter side pole 1, the protrusion 1a inscribes the straight normal portion 2B, imparts a pull-out resistance suitable for the pull-out operation, and provides the angler B with the angler. The registration start can be recognized.

Then, if the extraction operation is further performed, as shown in Fig. 1 (b), the inclined contact surface 1A finally comes in contact with the inclined support surface 2A, whereby the small diameter side pole 1 ) To prevent being pulled out.

On the other hand, the pole proximal end 1B is smaller than the pole proximal end side diameter of the inclined contact surface 1A and the diameter of the protrusion 1a, and thus the pole proximal end 1B does not come into contact with the straight normal portion 2B. Bet resistance is not excessive.

As the structure of the above-mentioned joint part B, the above-mentioned fixation prevention effect is also high, and the test data which demonstrated the effect is shown in Table 1. As shown in FIG. The test apparatus which obtains the data of Table 1 is shown in FIG. 5, The small diameter side pole 1 is fitted to the large diameter side pole 2, and the small diameter side pole 1 is suspended and supported. The fitting force of the small diameter side pole 1 and the large diameter side pole 2 is initially set to 5 kg.

Movement amount L of the large diameter side pole 2 in the state which dropped the weight Wh from the height H with respect to the large diameter side pole 2, and gave it to the resin flange 2D formed in the large diameter side pole 2 The data is measured.

The movement amount L is measured by changing the fall amount of the weight Wh from 50 mm to 150 mm in steps, and it is measured whether it is possible to return to the initial state before dropping the weight Wh = 1 Kg from the moving state. . That is, it is measured whether it is possible to return to the initial state from the moved state of the large diameter side pole 2, for example, whether it is not stuck in the stuck state, and all were not difficult to return to the original state, It can be seen that the seam portion B with less falling out could be provided.

As the rod used for the test, the rod having the straight ordinary portion 2B of the present invention is used, and as the rod of the conventional product (painting projection), the seam portion B is formed, but the resin is formed on the outer peripheral surface of the rear end of the small diameter side pole. The pole which has wound the prepreg which sprayed the coating material and formed many resin protrusions, and arrange | positioned the thermoplastic resin which is highly flexible on the pole base end side rather than this part in the shape of a turtle is used.

◎ ‥‥ No sticking, can be easily returned to the original state

○ ‥‥ Can be returned to its original state

△ ‥‥ Because it is stuck, two people can only return

× ‥‥ Strong fixation cannot be reversed

Using the said drop tester, the required tensile force or return force in a fall distance (50 mm-150 mm) is measured, and the result is shown in Table 1. According to this, in this invention, it is 30 kg or less as a return force in all the fall distances (50 mm-150 mm). Since the range which can be returned by one force is 50 kg or less, it can be judged that fixation does not occur.

On the other hand, in a conventional product, 52 kg is already required as a return force at the fall distance of 130 mm, exceeding the limit which can be returned alone, and the countermeasure against fixation is needed.

The following test was done as showing evaluation in the joint part B of the above-mentioned this invention and the prior art.

In order to measure the movement resistance of the joint part B of this invention and a prior art, the machine (not shown) which applies a tension force and a return force, and measures the movement resistance force is used. Although the measurement result is shown in FIG. 7, According to the result, the difference of a tensile force and a return force is not remarkable, but the difference between this invention and a conventional article is remarkable.

That is, in the present invention, the inclined contact surface 1A contacts the inclined support surface 2A after the protrusion 1a is brought into contact with the pole proximal end 1B to impart resistance, so that the small diameter side pole 1 ) Stroke is about 26 ~ 27mm until the pull out state is stopped.

In contrast, in the above-described conventional products, contact is started from a position corresponding to 10 mm in the present invention, and the resistance gradually increases, and at about 26 to 27 mm at the end of the stroke, the movement resistance is 2-3 times higher than that of the present invention. It will be shown that the stuck state.

Here, in the case of verifying the case of the present invention in detail, the movement resistance is maintained at a constant resistance of about 3 kilos from about 10 mm to about 22 mm of the stroke. This constant resistive portion is considered to be a portion indicated by maintaining the state where the protrusion 1a is in contact with the straight normal portion 2B from the inclined guide surface 2C, and is a portion which is a feature of the present invention. Can be evaluated Based on the above evaluation results, it is recognized that the present invention is excellent also in the fixation measures.

Second Embodiment

Here, in the pole base end part of the small diameter side pole 1, although the installation number of the protrusion surface part 1a is arbitrary, the structure which arrange | positioned four protrusion surface parts 1a in four circumferential directions is shown in FIG.

Even when only the protrusion 1a is formed in this manner, the angler guides 2A to the angler guide pole 2 formed on the large-diameter side pole 2, and the straight portion 2B is contacted by the angler. Good operation feeling at the time of operation can be given.

[Example 3]

The state which replaced the formation object of a protrusion part and a straight normal part is shown. As shown in Fig. 10 (a), the inclined contact surface 1A is formed on the outer circumferential surface of the pole proximal end of the small diameter side pole 1 as in the case of the first embodiment, and the outer surface diameter is constant on the pole proximal side. The straight normal part 1C is provided.

On the other hand, on the inner circumferential surface of the pole tip of the large-diameter side pole 2, the inclined support surface 2A to which the inclined contact surface 1A comes into contact is formed, and on the pole proximal side of the inclined support surface 2A, A protrusion 2E is formed to protrude to i).

When the small diameter side pole 1 having the above configuration is accommodated in the large diameter side pole 2, first, the straight normal portion 1C of the small diameter side pole 1 is the protrusion 2E of the large diameter side pole 2; To contact. If the extraction operation is continued while maintaining the contact between the straight ordinary portion 1C and the protrusion 2E, the inclined contact surface 1A contacts the inclined support surface 2A as shown in Fig. 10B. The extraction operation cannot be performed.

[Example 4]

Although the protrusions 1a and 2E are formed as being in contact with the straight normal portion on the opposite side, as shown in Figs. 11A and 11B, as the protrusions, the small diameter side pole 1 The flange-shaped protrusion 1D may be provided at the pole base. That is, the flange-shaped protrusion part 1D is formed, and the outer peripheral surface of the flange-shaped protrusion part 1D is comprised so that the straight normal part 2B of the large diameter side pole 2 may be contacted. In order to make elastic contact with the straight normal part 2B of the flange-shaped protrusion part 1D, the split groove 1d which deeply enters the flange-shaped protrusion part 1D over a fixed length along the radial direction from the outer peripheral surface is provided. You may install over several places in the circumferential direction. Thereby, the pressure which contacts the straight normal part 2B of the flange-shaped protrusion 1D can be reduced, and it can be made substantially constant.

[Example 5]

Here, the structure which changed the formation position of the straight normal part and the inclined surface in the long axis direction is demonstrated. As shown in FIG. 12, the straight normal part 1C is formed in the small diameter side pole 1, and the inclined contact surface 1A is formed in the pole base end side. On the other hand, while the projection part 2E is formed in the inner peripheral surface of the pole tip side edge part in the large diameter side pole 2, the inclined support surface 2A is formed in the pole base end side of the projection part 2E, and the joint part ( You may comprise B).

Even in such a configuration, when the small-diameter side pole 1 is pulled out from the large-diameter side pole 2, the straight normal portion 1C of the small-diameter side pole 1 contacts the protruding portion 2E and finally inclines. 1 A of contact surfaces contact the inclined support surface 2A, and the elongation state from the large diameter side pole 2 of the small diameter side pole 1 is set.

[Example 6]

Here, in the fifth embodiment showing the configuration in which the positions of formation of the straight normal portion and the inclined surface are changed in the long axis direction, the description will be given as to the formation of the protrusion portions and the straight normal portion. As shown in FIG. 13, the straight normal part 2B is formed in the inner peripheral surface of the large diameter side pole 2, and the inclined support surface 2A is formed in the pole base end side. On the other hand, while forming the projection part 1a in the outer peripheral surface of the pole tip side edge part in the small diameter side pole part 1, the inclined contact surface 1A is formed in the pole base end side of the projection part 1a, and the joint part B ) May be configured.

Also in such a structure, when the small diameter side pole 1 is pulled out from the large diameter side pole 2, the straight normal part 2B of the large diameter side pole 2 contacts the protrusion part 1a, and finally inclines. 1 A of contact surfaces contact the inclined support surface 2A, and the elongation state from the large diameter side pole 2 of the small diameter side pole 1 is set.

[Other Examples]

(1) As said structure, you may apply to a fishing rod inserted into a pole and let a fishing line pass.

(2) Moreover, as said structure, the handle side pole of a pull-out pole is comprised by the 1st handle side pole as a telescopic large pole, and the 2nd handle side pole as a large diameter side pole of larger diameter than that, and a 1st handle Expansion and contraction which not only form the above-mentioned joint part which press-contacts in the state which pulled out the side pole from the 2nd handle side pole, but also maintains the state in the state which received the 1st handle side pole to the 2nd handle side pole. The pull rod of the ceremony may be applied.

In this case, it is not necessary to apply the above-mentioned joint part B as a structure which can maintain the state, even if the 1st handle side pole is accommodated in the 2nd handle side pole, The pole of a 1st handle side pole is not required. What is necessary is just to provide and comprise the holding rubber which fits a base end.

(3) As shown in FIG. 9, the notch recessed part 1b which enters concave triangularly toward the pole tip side may be formed in the pole base end opening of the small diameter side pole 1. As shown in FIG. The protrusion 1a and the notch recess 1b are formed at three circumferential directions, and are formed at positions of 120 degrees, respectively.

By forming the notch recess 1b in this manner, the site where the notch recess 1b is formed causes rigid softening due to the notch effect, whereby the long proximal opening is shortened up and down. It is easy to deform into an ellipse that bulges from side to side.

The long proximal end opening is subjected to a radial pressure when the projection is subjected to contact resistance by the contact of the straight normal portion due to the presence of the notch recess. This pressure causes deformation in the direction of narrowing the notch width in the notched concave portion, and it is possible to prevent the contact resistance from significantly changing even if the pressure fluctuates.

In this way, the contact resistance of the protruding portion and the straight normal portion can be made to be unchanged so that the operation feeling is improved.

According to the present invention, there is provided a rod for a fishing rod which can avoid a fixing state and reduce a manufacturing burden while avoiding a stuck state.

Claims (6)

The joint is formed on one side of the small diameter side pole and the large diameter side pole, and the contact surface is formed while forming a joint portion for keeping the small diameter side pole in the extended state with respect to the large diameter side pole. It consists of the straight normal part which shows a fixed diameter, and the protrusion part formed in the other side of the small diameter side pole and the large diameter side pole, and contacting the contact surface of the said straight normal part, The said protrusion part A pull-out pole consisting of a prepreg in which resin is impregnated into a reinforcing fiber group in which a surface layer in contact with the straight normal portion is mixed and arranged along a pole axial direction. The method of claim 1, A pull-out pole, which is formed in a plurality of places along the circumferential direction of the pole. The method according to claim 1 or 2, On the inner circumferential surface of the large diameter side pole, a conical inclined support surface is formed in a state adjacent to the pole tip of the straight normal portion, and on the outer circumferential surface of the small diameter side pole. And a pulling rod forming a conical inclined contact surface in contact with the inclined support surface. The method according to any one of claims 1 to 3, On the outer circumferential surface of the small diameter side pole, a pole base end portion is formed on the pole base end side of the inclined contact surface, and the projection surface is placed on the pole base end of the pole base end portion, and the outer diameter at the pole base end is provided. A pulling rod that is set smaller than the outer diameter of the pole base of the inclined contact surface and the outer diameter of the protruding portion. The method according to any one of claims 1 to 4, A pull rod comprising the inclined contact surface and the surface layer of the pole proximal end, each having a group of reinforcing fibers arranged in a circumferential direction orthogonal to the pole axis. The method according to any one of claims 1 to 5, The inclined contact surface and the middle layer of the pole proximal end are mixed with a prepreg having a group of reinforcing fibers mixed and disposed along a predetermined inclination angle with respect to the pole axis, and in a state of being symmetrical with respect to the reinforcing fiber group of the prepreg and the pole axis. Pull-out pole which piles up prepreg with reinforcement fiber group arranged and comprises.

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