JP2010259408A - Extensible fishing rod - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an extensible fishing rod enabling free adjustment to a desired rod length by an angler. <P>SOLUTION: The extensible fishing rod is composed of inner and outer rod members 10, 20, and at least a part (extendable part 201) of the inner and outer rod members 10, 20 has an extendable nested structure. The outer rod member 10 has a tubular form, and the inner rod member 20 form an end part 22 at least a part of which has a tubular form; the circumferential wall of the tubular end part 22 is provided with a plurality of notches 23 extending in the direction of rod axis and opened at an edge 21; and the edge 21 divided to a plurality of sections by a plurality of notches 23 is elastically pressed against the tubular inner wall of the outer rod member 10 to enable extension of the inner rod member 20 to a desired length relative to the outer rod member 10 and automatically stop at the extended position. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a fishing rod, and more particularly to a telescopic fishing rod having a nested tube structure.

  Since the fishing rod having a nested tube structure can be extended and contracted, the entire length can be extended or reduced, which is very convenient for use and storage.

  For example, a fishing rod described in Non-Patent Document 1 below has an outer rod body 1 and an inner tube structure that can be expanded and contracted with respect to the outer rod body 1 as shown in FIG. It consists of a housing 2 and a bottom cap 3 provided at one end of the outer housing 1.

  Both of the inner and outer rod bodies 1 and 2 in this conventional fishing rod gradually decrease in diameter from the rear end close to the bottom cap 3 toward the opposite end, and near the rear end of the inner rod 2. The outer diameter is larger than the inner diameter near the tip of the outer casing 1. In addition, the inner periphery of the outer casing 1 at the tip of the outer casing 1 is located immediately behind the tip of the outer casing 1 in a state where the inner and outer casings 1 and 2 are minimized. It is set as the structure which provided the support ring 200 which can be pressed outside from.

  That is, in the conventional fishing rod, as shown by the broken line in FIG. 1, when the inner rod body 2 is pulled out from the outer rod body 1, the rear end of the inner rod body 2 is pressed and stopped near the tip of the outer rod body 1. And maximum length. When the inner casing 2 is pushed into the outer casing 1, the inner casing 2 is locked with the rear end thereof being stopped by the bottom cap 3 near the rear end of the outer casing 1. It has a configuration that can be expanded and contracted so that the minimum is possible.

  However, the conventional fishing rod with a nested tube structure can be extended or contracted in length, but can only be used in the maximum length and stored in the minimum, the intermediate position between them, That is, it cannot be used by being locked at a predetermined position between the maximum and minimum.

EH-VA453005 磯 鯛 (trade name, manufactured by EVER WINNER Inc.)

  The present invention has been made in view of the problems of a fishing rod having a conventional nested tube structure, and an object thereof is to provide an expansion / contraction fishing rod capable of freely adjusting the total length to a predetermined position between the minimum and maximum. .

  In order to achieve the above object, the present invention provides a telescopic fishing rod comprising inner and outer rods, and at least a part of both the inner and outer rods has a telescopic tube structure. The inner casing has an end portion at least partially forming a tubular shape, and a plurality of cuts extending along the axial direction of the inner end portion of the tubular end portion and opening at an end edge thereof. The plurality of end edges that are formed and divided by the plurality of cuts can be elastically pressed against the tubular inner wall of the outer casing, whereby the inner casing can be pressed against the outer casing. A telescopic fishing rod characterized in that it can be pulled out to a desired length with respect to the body and can be automatically stopped there.

  The end edge of the inner casing is elastically stretched to the tubular inner wall of the outer casing due to the elastic force generated by dividing the end edge by a plurality of cuts. In the case where the original diameter before being branched into a plurality of cuts is smaller than the inner diameter of the outer casing, the constituent material has a diameter after being branched into a plurality of cuts to form the diameter of the outer casing. It is necessary to select one that can generate an elastic force that expands to be larger than the inner diameter. On the other hand, if the original diameter before the edge is branched into a plurality of cuts is larger than the inner diameter of the outer casing, the edge that has been branched into a plurality of branches is pushed inward from the outer periphery to slightly shrink. What is necessary is just to insert in the said outer casing after making it diameter. Therefore, only the latter will be described below as an example.

  In the telescopic fishing rod of the present invention having the above-described configuration, the plurality of edges at the end of the inner rod body elastically stretch on the inner wall of the outer rod body. When you pull out to the length, it will automatically stop there. That is, it is very convenient to use because no other adjustment is required.

It is a fragmentary sectional view which shows the structure of the conventional expansion-contraction fishing rod. It is sectional drawing which shows the structure of the outer casing and the inner casing in embodiment of this invention. It is sectional drawing which shows the state in which the outer casing and the inner casing in the said embodiment are the telescopic tube structure which can be expanded-contracted. It is sectional drawing cut | disconnected along the IV-IV line of FIG. It is a fragmentary perspective view of the 1st modification of the telescopic fishing rod of the said embodiment. It is sectional drawing which shows the structure of the outer rod body and the inner rod body in the 2nd modification of the expansion-contraction fishing rod of the said embodiment.

  Hereinafter, embodiments and modifications of the present invention will be described with reference to FIGS.

  As shown in FIG. 2, the telescopic fishing rod of this embodiment includes an outer rod body 10 and an inner rod body 20, and the outer rod body 10 serves as a grip portion, and the inner rod body 20 serves as a rod body. .

  The outer casing 10 is tubular, and continuously has a small-diameter portion 101 having a small diameter and a large-diameter portion 102 having a larger diameter than the small-diameter portion 101 in the hollow. A step portion 103 is formed on the inner wall between the small diameter portion 101 and the large diameter portion 102 (boundary).

  Further, the small-diameter portion 101 of the outer casing 10 in the present embodiment does not have an inner diameter smaller than the inner diameter of the large-diameter portion 102, but a part thereof is equal to the inner diameter of the large-diameter portion 102, and a part thereof has a large diameter. The cross section is non-circular and smaller than the inner diameter of the portion 102. More specifically, the portion of the outer casing 10 having the small-diameter portion 101 has an inner diameter that is basically equal to the inner diameter of the large-diameter portion 102 as shown in FIG. Three slidable contact portions 104 whose surfaces are flat are projected at predetermined intervals in the circumferential direction. That is, the so-called small diameter of the small diameter portion 101 in the present embodiment refers to the inner diameter d1 in the portion having the three sliding contact portions 104. Further, the step portion 103 is divided into three parts because of the three sliding contact portions 104. In other words, the stepped portion 103 is configured by an end portion located on the large diameter portion 102 side in the sliding contact portion 104.

  As shown in FIGS. 2 and 3, the inner casing 20 has a tubular shape, and a part 201 (hereinafter referred to as an extending portion) has a small diameter of the outer casing 10 via the three sliding contact portions 104. It becomes the nested pipe structure which can be expanded and contracted with the part 101. Further, the inner casing 20 has a nested tube structure in which another part 202 (hereinafter referred to as a main body portion) can expand and contract with the large diameter portion 102. Further, when the inner casing 20 is pulled out from the large diameter section 102 toward the small diameter section 101 with respect to the outer casing 10 to a predetermined length on the outer peripheral wall of the inner casing 20, the step section 103. Protrusions 24 that are blocked and stopped are formed. That is, the inner casing 20 is divided into the main body 202 and the extending portion 201 by the protrusion 24.

  Further, as shown in FIG. 2, in the main body portion 202, the end portion 22 away from the extending portion 201 is particularly thicker than the main body portion 202, and the outer diameter D <b> 1 is a large diameter in the outer casing 10. It is somewhat larger than the inner diameter d2 of the portion 101. Moreover, a plurality of cuts 23 extending along the axial direction and opening toward the end edge 21 are formed in the peripheral wall of the main body 202 at a predetermined interval in the circumferential direction.

  That is, the end edge 21 of the inner casing 20 is formed with a plurality of cuts 23 so that a plurality of tongue pieces are formed therebetween, and each tongue piece can be elastically deformed in the radial direction. .

  Thereby, as shown in FIG. 3, the end edge 21 of the inner casing 20 is elastically applied to the tubular inner wall of the outer casing 10 when being pushed into the outer casing 10 while being pushed inward from the outer periphery. It is possible to generate a frictional force that automatically stops the sliding of the inner casing 20 relative to the outer casing 10. As a result, a state in which the protrusions 24 of the inner casing 20 are extended to the maximum extent until the stepped portion 103 of the outer casing 10 abuts, and the end 22 of the inner casing 20 has a large diameter of the outer casing 10. It can be adjusted to a desired length during a minimally stored state located at the end of the section 102.

  In the process of forming the inner rod body 20 in the telescopic fishing rod of the above embodiment, a rod-shaped blank is first prepared, and then a layer having a length of 20 mm and a thickness of 1.1 mm is formed at a portion to be the end portion 22. Apply a resinous saturated sheet. In addition, a resin-penetrating sheet is pasted at a location where the protrusion 24 is formed so that the layer has a length of 5 mm and an outer diameter of 0.1 mm smaller than the inner diameter of the outer casing 10. Then, an OPP tape (chlorinated polypropylene) is wound around both portions and heat-molded in an oven, and then the OPP tape is removed. Further, centerless polishing is performed on the outer surfaces of the extending portion 201 and the end portion 22, and a plurality of cuts 23 are formed on the peripheral wall of the main body portion 202. Finally, the outer surface of the extending portion 201 in the inner casing 20 is overcoated until the outer diameter is smaller than the inner diameter of the small diameter portion 101 by 0.01 to 0.02 mm.

  As described above, the telescopic fishing rod of the present embodiment uses the outer rod body 10 as the grip portion and the inner rod body 20 as the rod body. However, the present invention is not limited to this, for example, the first shown in FIG. As in the modification, the nested tube structure may be applied not only to the whole fishing rod but only to the grip portion 30 of the fishing rod. In the telescopic fishing rod of this embodiment, the small diameter portion 101 of the outer rod body 10 has a non-circular cross section having three sliding contact portions 104. However, the present invention is not limited to this, for example, as in the second modification shown in FIG. In this case, the small-diameter portion 101 ′ may of course have all the inner diameters smaller than the inner diameter of the large-diameter portion 102 ′, and the extended portion 201 of the inner casing 20 ′. It is better to have a full sliding relationship with '.

  As described above, the telescopic fishing rod structure of the present invention can pull out the inner rod directly from the outer rod to a desired length without any adjustment by the user, and can automatically stop there. it can. Therefore, if the structure is applied to the overall configuration of the fishing rod, the entire fishing rod can be adjusted to a length suitable for the individual situation and various environments. Moreover, if it is applied only to the grip portion of the fishing rod, only the grip portion can be expanded and contracted. However, the length can be freely changed between the one-hand holding and the two-hand holding for the user.

10, 10 'outer casing 101, 101' small diameter portion 102, 102 'large diameter portion 103 stepped portion 104 sliding contact portion d1 small diameter inner diameter d2 large diameter inner diameter 20, 20' inner casing 201, 201 'extension Part 202 body part 21 edge 22 end part 23 cut 24 projection part D1 outer diameter of end part 30 grip part

Claims (7)

In the telescopic fishing rod which is composed of both inner and outer rods, and at least a part of both the inner and outer rods has a telescopic tube structure,
The outer casing is tubular,
The inner casing has an end portion that is at least partially tubular, and a plurality of cuts that extend along the axial direction of the inner wall and open to the end edge are formed on the peripheral wall of the tubular end portion,
Further, the end edge divided into a plurality by the plurality of cuts can be elastically pressed against the tubular inner wall of the outer casing,
Accordingly, the telescopic fishing rod can be pulled out to a desired length with respect to the outer rod body and can be automatically stopped there. In the telescopic fishing rod which is composed of both inner and outer rods, and at least a part of both the inner and outer rods has a telescopic tube structure,
The outer casing is tubular,
The inner casing has an end portion that is at least partially tubular, and the end portion that has the tubular shape has an outer diameter near the end edge that is larger than an inner diameter of the outer casing and a shaft on the peripheral wall. A plurality of cuts extending along the direction and opening at the edge are formed,
Further, the end edge becomes a plurality by the plurality of cuts, and can be elastically pressed against the tubular inner wall of the outer casing by being put in the outer casing.
Accordingly, the telescopic fishing rod can be pulled out to a desired length with respect to the outer rod body and can be automatically stopped there. In the telescopic fishing rod which is composed of both inner and outer rods, and at least a part of both the inner and outer rods has a telescopic tube structure,
The outer casing is tubular, and has a small diameter portion and a large diameter portion continuously in the hollow, and a space between the small diameter portion and the large diameter portion. A step is formed on the inner wall of the
The inner casing is also tubular, and a part of the inner casing is slidably fitted into the small-diameter portion of the outer casing, and the other part is an end, and an outer portion near the edge. The diameter is larger than the inner diameter of the outer casing, and a plurality of cuts are formed in the peripheral wall extending in the axial direction and opening at the edge of the end portion.
Further, the end edge becomes a plurality by the plurality of cuts, and can be elastically pressed against the tubular inner wall of the outer casing by being put in the outer casing.
Accordingly, the telescopic fishing rod can be pulled out to a desired length with respect to the outer rod body and can be automatically stopped there.   A protrusion that is blocked by the stepped portion when the inner casing is pulled out from the outer casing to the smaller diameter section toward the smaller diameter section on the outer peripheral wall of the inner casing. The telescopic fishing rod according to claim 3, wherein a portion is formed.   The telescopic fishing rod according to claim 4, wherein at least one of the stepped portion and the projecting portion has an annular shape.   An inner diameter of the small diameter portion is substantially equal to an inner diameter of the large diameter portion, and a sliding contact portion projects from an inner wall of a portion forming the small diameter portion of the outer casing, and the inner diameter of the sliding contact portion is the large diameter portion. The telescopic fishing rod according to claim 3, wherein the telescopic fishing rod has a smaller diameter and is slidable in contact with the outer peripheral wall of the inner casing.   The telescopic fishing rod according to claim 3, wherein an inner diameter of each of the small diameter portions is smaller than an inner diameter of the large diameter portion.

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