JP2569413Y2 - Fishing rod - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fishing rod in which the inner peripheral surface at the front end of a large-diameter rod tube and the outer peripheral surface at the rear end of a small-diameter rod tube are freely fitted.

[0002]

2. Description of the Related Art Conventionally, a tapered inner peripheral surface and an outer peripheral surface of a swing fishing rod in which the inner peripheral surface at the front end of a large-diameter rod tube and the outer peripheral surface at the rear end of a small-diameter rod tube are jointably joined. It is joined by fitting. In this splicing, the inner diameter and the outer circumference of a perfect circular shape are fitted, and the fitting force is evenly distributed in the circumferential direction. However, there is a drawback that the small diameter rod pipe is loosened and the small diameter rod pipe falls off.On the other hand, when water invades, it sticks, and it is possible to release the joint and release the small diameter rod pipe in the large diameter pipe. Did not. Therefore, it is desired that the loosened fitting makes it easy to come off, so that it can be prevented from falling off, and it is desired to prevent the joint portion from being fixed.

[0003] A proposal for preventing the inner peripheral surface and the outer peripheral surface of the fishing rod from sticking to each other has been made, for example, in Japanese Patent Laid-Open No. 4-356147. Further, a proposal for preventing the small diameter pipe from falling off due to loose fitting has been made, for example, in Japanese Utility Model Laid-Open No. 5-70. In the above-mentioned publication, a concave groove is formed in the joint portion to prevent sticking, but conversely, the joint portion is easily loosened during use,
There was a drawback that the small diameter pipe fell off. If the small-diameter rod pipe falls off, the thread breaks, the rod is damaged, and the fish caught on the pipe is missed. In the publication, a pressing portion for resiliently engaging the taper portion of the small-diameter rod tube is formed inward and axially behind the tapered portion of the large-diameter rod tube. Although it can prevent the rod pipe from falling off, it has a structure that only the rear end of the joint part of the small diameter rod pipe is pressed and deformed.Therefore, although there is a shape deformation, it has an initial fixing force that joins while deforming in a biting state. There was a limit to being strong.

[0004]

The problems to be solved are that when the fitting of the joint is loosened, the joint falls off and the joint is fixed.

SUMMARY OF THE INVENTION In view of the above-mentioned drawbacks, an object of the present invention is to provide a fishing rod capable of preventing the spliced portion from sticking and having a high fixing force at the spliced portion and preventing falling off.

[0006]

According to the present invention, a tapered taper is formed on the inner peripheral surface of the leading end of the large diameter rod tube and the outer peripheral surface of the rear end of the small diameter rod tube.
In a swing fishing rod in which a portion is formed so that it can be fitted freely, a small projection is formed near a rear end of a rear end outer peripheral surface of the small-diameter rod pipe in an axial length direction joining range. Things.

[0007]

[Function] When the inner peripheral surface 1b of the distal end of the large diameter rod tube 1 and the outer peripheral surface 2b of the rear end of the small diameter rod tube 2 are joined, the small projection 2e is formed on the inner peripheral surface 1b of the distal end of the large diameter rod tube 1 at an extreme portion. It is joined in a state of strong pressure contact. Small protrusion
When 2e is joined to the inner peripheral surface 1b of the tip of the large-diameter rod tube 1 in an extremely strong press-contact state, the outer peripheral surface of the rear end of the small-diameter rod tube 2 at the position of the small projection 2e as shown by the arrow in FIG. A force in the centripetal direction acts on the large-diameter rod 2 from the large-diameter rod 1 and the outer peripheral surface 2b of the small-diameter rod 2 other than the position of the small projection 2e.
Is elastically deformed in the radial direction and the inner peripheral surface 1b of the tip of the large-diameter rod tube 1
Will be pressed. When joined as described above, even if water enters between the inner peripheral surface 1b at the distal end of the large-diameter rod tube 1 and the outer peripheral surface 2b at the rear end of the small-diameter rod tube 1, the water cannot enter the distal end of the large-diameter rod tube 1. Since the peripheral surface 1b and the outer peripheral surface 2b of the rear end of the small diameter rod 2 are not in close contact with each other, no sticking occurs. In addition, a small-diameter rod 2
Even when the small-diameter rod 2 is shaken, the small protrusion 2e is extremely strongly pressed against the inner peripheral surface 1b of the distal end of the large-diameter rod 1 and the rear outer peripheral surface 2b of the small-diameter rod 2 is elastically deformed and joined. Therefore, the small-diameter rod tube 2 does not fall off due to loose fitting.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIGS. 1 to 3 show a first embodiment, and FIG. FIG. 2 is a side view of a main part of the small-diameter rod pipe, and FIG. 3 is a rear view taken along line AA of FIG.

The swing fishing rod comprises an inner peripheral surface 1b of a front end 1a of a large diameter rod tube 1 formed of a fiber reinforced synthetic resin rod tube and a rear end of a small diameter rod tube 2 formed of a fiber reinforced synthetic resin rod tube. 2a outer peripheral surface 2b
The tapered taper portions 1c and 2c are formed respectively. The inner peripheral surface 1b and the outer peripheral surface 2b are swingably connected to each other in a joint range α in the axial direction. At the joint in the axial direction of the rear end outer peripheral surface 2b of the small-diameter rod pipe 2, a built-up portion 2d is formed of the same material as the rod pipe or a synthetic resin material not containing fibers. In the axial length direction range β of the rear end outer peripheral surface 2b of the small diameter rod tube 2 near the rear end and in the axial length direction smaller than the length of the diameter D, a built-up portion is provided.
A plurality of small projections 2e are formed on 2d in the circumferential direction by screen printing or painting.

The large-diameter rod tube 1 and the small-diameter rod tube 2 are each formed by winding a prepreg sheet (not shown) cut into a tape-shaped rectangle on a core metal (not shown) as appropriate and then taping the outside thereof. , And placed in a heating furnace to be integrally formed by a thermosetting treatment according to a conventional method. The prepreg sheet is, for example, a woven cloth reinforced with high-strength fibers such as carbon fiber, glass fiber, aramid fiber, alumina fiber, Keplera fiber, and other organic fibers and inorganic fibers, and epoxy resin, phenol resin, polyester resin, and the like. Of a thermosetting synthetic resin.

The overlaid portion 2d is overlaid so as not to cut the fiber material of the small diameter rod tube 2 when polishing and shaping the joint portion.

The small projections 2e are formed as minute projections having a height of 20 to 200 microns. The material of the small projections 2e is epoxy resin or urethane resin, and rubber or elastomer resin may be used. In consideration of abrasion, a synthetic resin or ceramics or metal mixed with ceramic particles or the like may be used as physical vapor deposition.

When the inner peripheral surface 1b of the distal end of the large-diameter rod tube 1 and the outer peripheral surface 2b of the rear end of the small-diameter rod tube 2 are joined, a small protrusion 2e is formed on the inner peripheral surface 1b of the distal end of the large-diameter rod tube 1. It is joined in a state of strong pressure contact. When the small protrusion 2e is joined to the inner peripheral surface 1b of the large diameter rod tube 1 in an extremely strong pressure contact state, the rear end of the small diameter rod tube 2 at the position of the small protrusion 2e as shown by the arrow in FIG. A force in the centripetal direction acts on the outer peripheral surface 2b from the large-diameter rod tube 1, and the outer peripheral surface 2b of the small-diameter rod tube 2 other than the position of the small protrusion 2e is elastically deformed in the radial direction, so that the inner peripheral end of the large-diameter rod tube 1 By pressing the surface 1b, the initial fixing force can be increased.

As described above, the small projection 2e is joined to the inner peripheral surface 1b of the large-diameter rod tube 1 in an extremely strong press-contact state.
A force in the centripetal direction acts on the rear end outer peripheral surface 2b of the small diameter rod tube 2 at the position 2e from the large diameter rod tube 1, and the outer peripheral surface 2b of the small diameter rod tube 2 other than the small protrusion 2e is elastically deformed in the radial direction. When the inner peripheral surface 1b of the distal end of the large diameter rod tube 1 is pressed, even if water enters between the inner peripheral surface 1b of the large diameter rod tube 1 and the outer peripheral surface 2b of the rear end of the small diameter rod tube 2, the large diameter rod Since the inner peripheral surface 1b at the front end of the pipe 1 and the outer peripheral surface 2b at the rear end of the small diameter rod 2 are not in close contact with each other, no sticking occurs. Further, even if the small-diameter rod tube 2 is shaken with respect to the large-diameter rod tube 1 by the operation of the fishing rod, the small projection 2e is extremely strongly pressed against the inner peripheral surface 1b of the distal end of the large-diameter rod tube 1, and the small diameter is reduced. Since the rear end outer peripheral surface 2b of the rod pipe 2 is elastically deformed and joined, it is possible to prevent the small diameter rod pipe 2 from falling off due to loose fitting. Further, the small protrusion 2e is formed in a range β in the axial direction smaller than the length of the diameter D near the rear end of the joining range α in the axial direction of the rear end outer peripheral surface 2b of the small diameter rod tube 2; Is locked so as to bite into the inner peripheral surface 1b of the distal end of the large diameter rod tube 1 and can be moderately elastically deformed, while preventing the rear end 2a from being damaged by the elastic deformation of the outer peripheral surface 2b of the small diameter rod tube 2. Is done. If the small projections are provided on the front side of the range β in the axial length direction, appropriate elastic deformation cannot be obtained, and if the small projections are formed at the rearmost end 2a, the outer peripheral surface 2b is easily damaged.

When the swing fishing rod is configured as described above, even if water enters between the inner peripheral surface 1b at the front end of the large-diameter rod tube 1 and the outer peripheral surface 2b at the rear end of the small-diameter rod tube 2, the large-diameter rod can be used. Since the inner peripheral surface 1b at the front end of the pipe 1 and the outer peripheral surface 2b at the rear end of the small diameter rod 2 are not in close contact with each other, no sticking occurs. In addition, a small-diameter rod 2
The small projection 2e is extremely strongly pressed against the inner peripheral surface 1b of the distal end of the large-diameter rod tube 1 even if it is shaken, and the outer peripheral surface of the rear end of the small-diameter rod tube 2
Since 2b is elastically deformed and joined, it is possible to prevent the small diameter rod tube 2 from falling off due to loose fitting. Further, the small protrusion 2e is formed in a range β in the axial direction smaller than the length of the diameter D near the rear end of the joining range α in the axial direction of the rear end outer peripheral surface 2b of the small diameter rod tube 2; Is locked so as to bite into the inner peripheral surface 1b of the distal end of the large-diameter rod tube 1 and can be moderately elastically deformed, and the rear end 2a is prevented from being damaged by the elastic deformation of the outer peripheral surface 2b of the small-diameter rod tube 2. You.

FIG. 4 shows a second embodiment, and FIG. 4 is a side view of a small-diameter rod pipe.

A tapered taper portion 2c is formed on an outer peripheral surface 2b of a rear end 2a of the small diameter rod pipe 2 formed of a fiber reinforced synthetic resin rod pipe. The outer peripheral surface 2b is connected to the inner peripheral surface 1b of the large-diameter rod pipe 1 so as to be freely fitted within the joint range α in the axial direction in the same manner as in the first embodiment. At the joint portion in the axial direction of the rear end outer peripheral surface 2b of the small-diameter rod tube 2, as in the first embodiment, a built-up portion is formed of the same material as the rod tube or a synthetic resin material containing no fibers. . The rear end outer peripheral surface 2b of the small-diameter rod tube 2 is closer to the rear end in the axial direction in the axial length range α and is smaller than the diameter D in the axial length range β. A plurality of linear small protrusions 2f having a length γ are formed in the circumferential direction in the circumferential direction. The height of the linear small protrusion 2f is a minute protrusion of 20 to 200 microns. Other configurations are substantially the same as those of the first embodiment.

In the second embodiment, the linear small protrusion 2f may be formed by arranging a plurality of small protrusions in a line.

FIG. 5 shows a third embodiment, and FIG. 5 is a sectional rear view of a small diameter rod pipe.

In the third embodiment, the outer peripheral surface of the rear end of the small diameter rod tube 2
A plurality of small projections 2g and a built-up portion 2h are integrally formed on 2b. Each of the plurality of small protrusions 2g may be a single small protrusion as in the first embodiment, or may be a linear small protrusion in the second embodiment. Other configurations are substantially the same as those of the first and second embodiments.

[0021]

[Effects of the Invention] Since the present invention is configured as described above,
Even if water enters between the inner peripheral surface of the tip of the large-diameter rod and the outer peripheral surface of the rear end of the small-diameter rod, the inner peripheral surface of the large-diameter rod and the distal end of the small-diameter rod come into close contact. There is no sticking because there is no. Also, even if the small-diameter rod pipe is shaken with respect to the large-diameter rod pipe by the operation of the fishing rod, the small projection is extremely strongly pressed against the inner peripheral surface of the front end of the large-diameter rod pipe, and the rear end of the small-diameter rod pipe. Since the outer peripheral surface is elastically deformed and joined, it is possible to provide a fishing rod that has excellent practical effects such as preventing the small-diameter rod tube from falling off due to loose fitting.

[Brief description of the drawings]

FIG. 1 is a sectional side view of a main part of a large-diameter rod pipe and a small-diameter rod pipe of a fishing rod in a first embodiment.

FIG. 2 is a side view of an essential part of the small diameter rod pipe.

FIG. 3 is a rear view taken along the line AA of FIG. 2;

FIG. 4 is a side view of a small-diameter rod tube according to a second embodiment.

FIG. 5 is a sectional rear view of a small-diameter rod pipe according to a third embodiment.

[Explanation of symbols]

 1 Large diameter rod 1a Tip 1b Inner peripheral surface 1c, 2c Tapered part 2 Small diameter rod 2a Rear end 2b Outer peripheral surface 2e, 2f, 2g Small protrusion α Joint range

Claims (1)

(57) [Scope of request for utility model registration] 1. A fishing rod in which a tapered taper portion is formed on an inner peripheral surface of a front end of a large-diameter rod tube and an outer peripheral surface of a rear end of a small-diameter rod tube so as to be fitably connectable. A small fishing rod characterized in that a small projection is formed on the rear end outer peripheral surface of the small-diameter rod near the rear end thereof in the axial length joining range.