JP3511568B2 - Articulated fishing rod - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a spliced fishing rod in which a spliced portion of a fishing rod adopting parallel joining or reverse joining is improved. 2. Description of the Related Art Conventionally, a joining assisting member is detachably provided at a joint portion of a conventional fishing rod, for example, as disclosed in Japanese Utility Model Laid-Open Publication No. 24666/1987, at the bottom of the front rod. There is known a configuration in which an auxiliary member guides the rear end of a front rod into a rod pipe of a rear rod. By providing the joining auxiliary member as described above, it is possible to easily join even when the outer diameter of the front rod and the inner diameter of the rear rod are small, but in the joined state, the joining inner peripheral surface of the rear rod, Since the overlapping part of the front rod and the joining auxiliary member is relatively long in the entire length of the joining part, a long high rigid part occurs,
The outer diameter of the front rod and the outer diameter of the joining auxiliary member abut at the same time, or a step occurs between the outer diameter of the front rod and the outer diameter of the joining auxiliary member, and one of the higher steps is abutted. Sometimes. If a long rigid portion as described above is formed or if the outer diameter of the front rod and the outer diameter of the joining auxiliary member come into contact at the same time, a smooth bend cannot be obtained and breakage occurs. There are potential drawbacks. As described above, when friction occurs at the joint inner peripheral surface of the rear rod and the step, the inner peripheral surface,
There are drawbacks such as catching, failure of smooth splicing, and possible damage. [0004] The problems to be solved are that the joint cannot be smoothly bent and may be damaged, and that the inner peripheral surface of the joint of the rear rod. May be caught or damaged by steps. SUMMARY OF THE INVENTION In view of the above drawbacks, it is an object of the present invention to provide a spliced fishing rod which can be smoothly bent at the spliced portion and which is hardly caught or broken on the inner peripheral surface. SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a method of manufacturing a joint rod , comprising:
A splicable joint is formed in an adjacent rod pipe joint of an adjacent rod pipe, and the joint is formed inside the joint and at the end thereof
The joining auxiliary member is fixed to the
And the end portion side region of the joining portion and the projection of the joining auxiliary member
The gist of the present invention is to form a guide portion which is reduced in diameter in a curved shape over the portion. [0007] DETAILED DESCRIPTION OF THE INVENTION The present invention is, engagement auxiliary members 9 in the engagement length alpha 'length of β is as short as 1/2 or less, engagement assist member 9, 9' Since the influence of rigidity due to the overlap of the two is small, a smooth bend at the joint portion can be obtained. Since the length β of the joining auxiliary members 9 and 9 ′ is shorter than the joining length α,
The size and weight are reduced. The distal end 9a of the joining auxiliary member 9 is in contact with the hollow rod pipes 2, 3, 4, 5 formed of a middle rod and the rear step of the hollow rod pipe 6 formed of a tip rod, respectively. Since the hollow rod c is in contact with the inclined surface f on the inner periphery of the hollow portion c, the joint assisting members 9 and 9 ' are pushed in even if they are dropped with their rear ends down. Never be. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIGS. 1 to 5 show a first embodiment, FIG. FIG. 3 is an enlarged cross-sectional side view of a joint portion between the hollow rod tube and the front hollow rod tube, FIG. 3 is an enlarged cross-sectional side view of a joint portion of the front hollow rod tube, and FIG. FIG. 5 is an enlarged sectional side view in which the front hollow rod pipe is joined to the rear hollow rod pipe. In the spliced fishing rod, a hollow rod tube 2, 3, 4, 5 composed of a middle rod and a hollow rod tube 6 composed of a head rod are sequentially connected to the tip of a hollow rod tube 1 composed of a base rod. A grip portion 7 is provided at the bottom of the hollow rod tube 1 made of the original rod, and a fishing line connecting cord 8 is fixed to the tip of the hollow rod tube 6 made of the tip rod. At the inner periphery of the distal end of the hollow rod tube 1 composed of the original rod and the hollow rod pipes 2, 3, 4, 5 composed of the middle rod, a joint portion a formed of a loose taper is formed. A thickened portion b is formed on the outer periphery of the rear end of the hollow rod pipes 2, 3, 4, 5 formed of the middle rod and the hollow rod pipe 6 formed of the tip rod. 2 to 5, a hollow rod tube 1 composed of a former rod and a hollow rod tube 2 composed of a middle rod,
Hollow rod pipes 2, 3, 4,
The rear end of the hollow rod tube 6 composed of 5 and the tip rod is formed in a similar shape. When the hollow rod tube 1 composed of the original rod, the hollow rod tubes 2, 3, 4, 5 composed of the middle rod, and the hollow rod tube 6 composed of the tip rod are formed, carbon fiber of high-strength fiber or glass is used. A prepreg sheet impregnated with a thermosetting resin such as an epoxy resin, a phenol resin or a polyester resin in a woven fabric or the like reinforced with fibers is wound around a core metal (not shown) an appropriate number of times, and then the outside thereof is taped. Is placed in a heating furnace and molded by a thermosetting process according to a conventional method. The overlaid portion b is formed integrally with the prepreg sheet of the same material being further wrapped around the outer periphery where the prepreg sheet is wrapped up as many times as necessary. A solid joining auxiliary member 9 is fitted to the inner periphery of the rear end hollow portion c of the build-up portion b and fixed with an adhesive, and the tip 9a of the joining auxiliary member 9 is formed of a middle rod. Hollow rod tubes 2, 3,
The hollow rod tubes 6, 4 and 5, each of which is in contact with the rear step of the hollow rod tube 6. A joint portion d formed of a loose taper is formed on the outer periphery of the built-up portion b. Overlay b
Is the outer periphery of the rear end area , and the rear end area of the joint d is shown in the figure.
The guide portion e having a curved surface is formed by grinding or cutting as described above. The rear end of the built-up portion b, that is, the outer periphery of the joining auxiliary member 9 protruding from the rear end of the joining portion is ground or cut as shown to form a guide portion 9b having a curved surface. I have. The curved guide portion e and the curved guide portion 9b are integrally formed by grinding or cutting. 3 and 4, the outer periphery of the rear end of the built-up portion b before grinding and the outer periphery of the rear end of the joining auxiliary member 9 are indicated by broken lines.
The material of the joining auxiliary member 9 is made of the same material as the prepreg sheet, synthetic resin, cork, or the like. [0013] The hollow rod tubes 2, 3, 4, and 5 formed of a middle rod and the tip rod are provided on the inner periphery of the hollow rod tube 1 formed of a former rod and the hollow rod tubes 2, 3, 4, and 5 formed of a middle rod. When the rear ends of the hollow rod pipes 6 are respectively inserted, the length β of the joining auxiliary member 9 is set to be not more than １ ／ of the length α with respect to the joining length α. The length γ from the start end of the curved guide portion e to the rear end of the joining auxiliary member 9 is formed to be 1/3 or less of the joining length α. The starting end of the guide part 9b formed of a curved surface, that is, the hollow rod pipes 2, 3, 4, 5 formed of a middle rod and the hollow rod pipe 6 formed of a head rod
The length δ from the rear end to the rear end of the joining auxiliary member 9 is formed short. At the inner periphery of the tip of the hollow rod tube 1 consisting of the original rod and the hollow rod tubes 2, 3, 4, 5 consisting of the middle rod, the hollow rod tubes 2, 3, 4, 5 consisting of the middle rod and When the rear ends of the hollow rod tubes 6 are inserted, respectively, as shown in FIG. 5, the guide portion e having a curved surface and the guide portion 9b having a curved surface have a hollow rod tube 1 composed of an original rod and a hollow rod tube composed of a middle rod. 2, 3, 4, and 5 are respectively applied to the inner peripheral edges of the distal ends and inserted. When the insertion is completed and the joints a and d are joined, respectively, the guides e each having a curved surface partially contact the joint a, but the curved surface of the joint assisting member 9 Is separated from the joint a. Even if the joint type fishing rod is used and is bent by a large object, the joint assist member 9 has a length β
Is shorter, the influence of rigidity due to the overlap of the joining assisting member 9 and the overlay portion b is reduced. Since the length β of the joining auxiliary member 9 is shorter than the joining length α, the size and the weight are reduced. The front end 9a of the joining auxiliary member 9 is in contact with the hollow rod pipes 2, 3, 4, 5 formed of a middle rod and the rear step of the hollow rod pipe 6 formed of a tip rod. Even if it is dropped on the lower side, the joining auxiliary member 9 is not pushed in. When the splicing type fishing rod is constructed as described above, the effect of rigidity due to the overlap of the splicing assisting member 9 and the built-up part b is small, so that the spliced part can be smoothly bent. The guide portions e each formed of a curved surface formed on the overlay portion b are partially in contact with the joint portion a, so that the inner peripheral surface is not easily damaged. Since the length β of the joining auxiliary member 9 is shorter than the joining length α, the size and the weight are reduced. FIGS. 6 and 7 show a second embodiment. FIG. 6 is an enlarged sectional side view of a joint portion of a front hollow rod tube. FIG. 7 is an enlarged sectional view of a main portion of a joint portion of a front hollow rod tube. It is a side view. In the second embodiment, hollow rod pipes 2, 3, and
4 and 5 of the main body of the hollow rod tube 6 consisting of the body and the top rod is extended diverging been inclined surface f towards the rear end is formed, this
The joining assisting member 9 'is inserted into it and fixed by an adhesive. An inclined surface f may be formed on the inner periphery of the hollow portion c at the rear end of the built-up portion b. Other configurations are substantially the same as those of the first embodiment, and the inclined surface f may be formed by grinding. 8 and 9 are reference examples outside the present invention . FIG. 8 is an enlarged sectional side view of a joint portion of the front hollow rod tube, and FIG. 9 is a main portion of a joint portion of the front hollow rod tube. It is an expanded sectional side view. In this embodiment, a joining auxiliary member 9 "is fitted on the inner periphery of the rear end hollow portion c of the build-up portion b and is fixed with an adhesive. The hollow rod tubes 2, 3, 4, 5 formed of a middle rod and the rear step of the hollow rod tube 6 formed of a tip rod are in contact with each other. A rear end portion of the built-up portion b is ground or cut to form a guide portion g having an inclined surface. Joint assisting member 9 ″ protruding from the rear end of the overlay portion b
Is ground or cut into a conical shape to form a guide portion 9c formed of an inclined surface. The guide portion g formed of an inclined surface and the guide portion 9c formed of an inclined surface are integrally formed by grinding or cutting. A through hole 9d is formed at the center of the joining assisting member 9 ". The other structure is substantially the same as that of the first embodiment. The through hole 9d is a thin rod tube on the tip rod side. The joint assisting member 9 "is formed with a hollow rod tube 2, 3, 4, 5 formed of a front middle rod and a hollow rod tube 6 formed of a tip rod as in the second embodiment. Is extended to form a sloping surface that is expanded toward the rear end.
9 " may be inserted and fixed with an adhesive. If a through-hole 9d is formed in the center of the joining auxiliary member 9" as in the above-described reference example, the weight can be reduced. The present invention is embodied in the form described above, and has the following effects. When a smooth bend at the joint is obtained
In both cases, a joint-type fishing rod whose inner surface is hard to catch or break is provided.
Will be available.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an overall side view of a joint type fishing rod in a first embodiment. FIG. 2 is an enlarged sectional side view of a joint portion between the rear hollow rod tube and the front hollow rod tube. FIG. 3 is an enlarged sectional side view of a joint portion of the hollow rod tube on the front side. FIG. 4 is an enlarged sectional side view of a main part of a joint portion of the hollow rod tube on the front side. FIG. 5 is an enlarged sectional side view in which a front hollow rod pipe is joined to a rear hollow rod pipe. FIG. 6 is an enlarged cross-sectional side view of a joint portion of a front hollow rod pipe in a second embodiment. FIG. 7 is an enlarged sectional side view of a main part of a joint portion of the hollow rod tube on the front side. FIG. 8 is a reference example, and is an enlarged sectional side view of a joint portion of a front hollow rod pipe. FIG. 9 is an enlarged sectional side view of a main part of a joint portion of the hollow rod tube on the front side. [Description of Signs] 1, 2, 3, 4, 5, 6 Hollow rod tubes 9, 9 ', 9 "Splicing assisting members a, d Splicing portion b Overlay portion c Hollow portions e, g, 9b, 9c Guides consisting of surfaces

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int. Cl. ⁷ , DB name) A01K 87/00-87/06

Claims (1)

(57) [Claims 1] The outer periphery of one end of the hollow rod tube of the connecting rod is
A joint portion is formed within the joint portion on the adjacent rod pipe side of the rod pipe in contact with, and a joining auxiliary member is fixed to the inside of the joint portion and to the end thereof. Protruding from the end
And the end portion side region of the joining portion and the projection of the joining auxiliary member
A spliced fishing rod characterized by forming a guide portion which is reduced in diameter in a curved shape across the portion.