JP2009240283A - Butt cap for spinning rod - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a butt cap for a spinning rod, lightened, while maintaining durability and decorativeness. <P>SOLUTION: Provided is the butt cap 30 including a cylindrical butt cap body 32 disposed on the outer peripheral surface of the rear end of a butt section 12, and a butt member 34 having a fall-preventing portion 54 for disposing the butt member 34 on the butt cap body in a fat-preventing state and disposed at the rear end of the butt cap body, characterized in that, in the butt cap body 32, a cylindrical base portion 42 disposed on the outer periphery of the rear end of the butt section, the first flange portion 44 disposed within the range of the length of the base portion and extended on the outer side of the base portion, and the second flange portion 46 disposed on the rear end side from the first flange portion and used for fitting the fall-preventing portion 54 of the butt member between the first flange portion and the second flange portion are formed from a resin; and a surface-protecting member 36 formed from a harder material than that of the butt cap body and covering at least a part of the base portion is disposed on the outside of the base portion on the tip side from the first flange portion. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a fishing rod bottom plug.

For example, as disclosed in Patent Document 1, a tail plug is generally provided at the rear end of a fishing rod for boat fishing. The bottom plug includes a plug made of a high-strength metal material such as aluminum, brass, titanium, or stainless steel, and an elastic cap such as rubber.
JP 2000-279061 A

Since fishing rods are often used while being held for a long time, there is a demand for lighter weight while maintaining strength.
The plug body of the bottom plug of the fishing rod disclosed in Patent Document 1 described above is made of a metal material. For this reason, there is a high degree of freedom regarding the decoration (decorativeness) and strength (durability) of the plug. However, it is difficult to reduce the weight of the bottom plug.
This invention was made in order to solve such a subject, and the place made into the objective is to provide the bottom plug for fishing rods reduced in weight, maintaining durability and decorating property. .

In order to solve the above-mentioned problems, a bottom plug according to the present invention is arranged in a state where a cylindrical bottom plug body disposed on the outer peripheral surface of the rear end of the marshall and the bottom plug body are prevented from falling off. And a butt member disposed at a rear end of the butt plug body. The bottom plug body includes a cylindrical base portion disposed on the outer periphery of the rear end of the base rod, and a first base portion provided within the length of the base portion and extending outside the base portion. A first collar part and a second collar part that is disposed on the rear end side of the first collar part and in which the drop-off prevention part of the bottom member is fitted between the first collar part and the first collar part. A surface protection member formed of a resin material and formed of a harder material than the bottom plug main body and covering at least a part of the base portion is disposed outside the base portion on the tip side of the first flange portion. It is installed.
In addition, the surface protection member includes a ring portion that is externally fitted to the first flange portion and the base portion on the tip side of the bottom plug body, and the ring portion, the base portion, and the first portion It is preferable that a gap is formed between the flange portion.
In addition, it is preferable that a gap is formed between the surface protection member, the outer peripheral surface of the rear end of the base rod, and the front end side surface of the base portion.

  According to the present invention, the bottom plug body is formed of the resin material, so that the weight can be reduced as compared with the case of forming the plug body with the metal material. In addition, a surface protection member that is stronger (eg, resin or metal) than the bottom plug body is placed outside the bottom plug body to reinforce the bottom plug body and maintain resistance (durability) to external forces. can do. For example, when the bottom plug is made to collide with the ground or a wall, the surface protection member is elastically deformed, so that the shock applied to the main rod through the bottom plug body of the resin material and the shock applied to the angler through the main shaft can be reduced. it can. Also, when the main rod is bent due to the fishing rod movement during fishing, the bottom plug body of the resin material is elastically deformed accordingly, so the resin material is deformed by the surface protection member harder than the bottom plug body It is possible to prevent the overgrowth and suppress the deformation of the main shaft, and to prevent the bonded main shaft and the bottom plug body from being separated. At this time, even if a metal material is used for the surface protection member, the bottom plug body is formed of a resin material. Therefore, the weight can be reduced as compared with the case where a metal material is used for both the bottom plug body and the surface protection member. . Furthermore, various desired decorations can be applied to the outer surface of the surface protection member. Therefore, according to the present invention, it is possible to provide a fishing rod bottom plug that is lighter while maintaining durability and decorativeness.

The best mode for carrying out the present invention will be described below with reference to FIGS.
As shown in FIG. 1, the fishing rod 10 is formed as a two-joint boat rod in which a main rod 12 and a front side node 14 are joined by a joint member 16 provided on the front side node 14. A reel seat for fixing the fishing reel 8, that is, a reel leg fixing device 18, is disposed at the front end portion of the main rod 12, and a rear grip portion 20 that a fisherman holds behind the reel leg fixing device 18. Has been placed. Also, the rear end portion of the base rod 12 is provided with a buttocks plug 30 and a buttocks fitting 88 which will be described later. The grip 22 can be held and the fishing rod 10 can be operated to exchange with the fish.

  The front side joint 14 joined to the tip of the base rod 12 by the joint member 16 is provided with a front grip 22 on the front side of the joint member 16 so that the fishing line contacts the outer surface of the fishing rod 10. The fishing line guide 6 to be prevented is fixed to the tip of the fishing rod 10 at a predetermined interval on the same side as the fishing reel 8, and a top guide 6a is attached to the tip of the fishing rod. The number and arrangement position of such fishing line guides 6 are not limited to the illustrated example, and can be arbitrarily set.

As shown in FIGS. 2 (A) and 2 (B), the butt plug 30 includes a butt plug body 32 disposed on the outer periphery of the main shaft 12, a butt member 34, and a butt plug. And a surface protection member 36 fixed to the outside of the main body 32. The base rod 12 may be formed in any one of hollow / solid.
First, the structure of each member of the bottom plug 30 will be described with reference to FIG.

The bottom plug body 32 is made of, for example, a resin material such as acrylonitrile butadiene styrene (ABS) resin, nylon, or polyoxymethylene (POM). For this reason, the bottom plug body 32 is formed to be lightweight.
The bottom plug body 32 includes a substantially cylindrical base portion (cylindrical portion) 42, a first flange portion 44 extending radially outward from the outer peripheral surface of the base portion 42, and an end portion of the base portion 42. And a second flange 46 formed at the (rear end). The radius r1 from the center of the base portion 42 to the inner peripheral surface is the same as the radius r0 from the center of the main shaft 12 to the outer peripheral surface, or is slightly larger by the amount of adhesive applied.

On the other hand, the amount of extension from the central axis of the butt plug body 32 outward in the radial direction is larger in the first flange portion 44 than in the second flange portion 46. That is, the radius r2 of the first flange 44 is larger than the radius r3 of the second flange 46. A radius from the central axis of the bottom plug body 32 to the outer peripheral surface of the base portion 42 from the first flange portion 44 to the tip of the base portion 42 is defined as, for example, r4, and the first flange portion 44 and the second For example, when the radius from the central axis of the bottom plug body 32 to the flange portion 46 to the outer peripheral surface of the base portion 42 is defined as r5, the radius r5 is larger than the radius r4.
Since the inner peripheral surface of the bottom plug body 32 has the same diameter (radius r1), the first flange portion 44 and the second flange portion 46 are compared with the first flange portion 44 to the tip of the base portion 42. The wall between the two is thicker, and when the rear end of the bottom plug body 32 is subjected to an impact when attached to the main shaft 12, it is possible to increase the shock absorption and protect the main shaft 12. Can do.

  The bottom member 34 is a material having cushioning properties (impact absorption) when the bottom plug 30 is dropped or collided with an object, such as rubber, ethylene vinyl acetate copolymer (EVA), cork, elastomer, etc. It is formed with. The bottom member 34 has a curved surface portion 52 such as a substantially spherical shape in part, and is formed in a rounded shape as a whole. The buttocks member 34 is formed symmetrically with respect to the central axis. The bottom member 34 is formed with a drop-off preventing portion (inner flange portion) 54 toward the central axis of the curved surface portion 52 having a substantially spherical shape or the like. A space 52 a in which the second collar portion 46 of the bottom plug body 32 is disposed is formed between the dropout prevention portion 54 and the inner peripheral surface of the curved surface portion 52.

  A radius r6 from the central axis of the buttocks member 34 to the inner peripheral surface of the drop-off preventing portion 54 is a portion of the base portion 42 of the buttocks plug body 32 between the first flange portion 44 and the second flange portion 46. Same as or slightly larger than radius r5. The radius r6 is smaller than the radius r3, and the wall thickness T1 of the dropout prevention portion 54 is the same as or slightly the distance T2 between the first flange portion 44 and the second flange portion 46 of the bottom plug body 32. small. For this reason, the drop-off preventing portion 54 is disposed between the first flange portion 44 and the second flange portion 46 of the bottom plug body 32 in a state in which it is prevented from coming off from the bottom plug body 32. When the radius r6 of the stopper member 54 of the butt member 34 is larger than the radius r5 of the stopper plug body 32 and the wall thickness T1 of the stopper member 54 is smaller than the distance T2 of the stopper member 32, The butt member 34 is rotatable with respect to the butt plug body 32. In this case, it is difficult to apply a rotational torque to the bottom plug body 32 via the bottom member 34, so that the durability is excellent.

  In addition, a through hole 52b for discharging seawater or the like is formed on the central axis of the bottom member 34, for example.

  The surface protection member 36 covers and protects a portion of the bottom plug body 32 that is more distal than the first flange 44. The surface protection member 36 includes a ring portion 62 formed in a ring shape and a pipe portion 64 formed in a pipe shape. The ring part 62 and the pipe part 64 are made of, for example, a high-strength hard material such as FRP formed by impregnating a resin material between fiber bundles such as carbon fiber and glass fiber and curing, aluminum, titanium, brass, It is made of a metal material such as stainless steel. The ring portion 62 and the pipe portion 64 are formed with higher strength than the bottom plug body 32 in order to prevent a force from being applied to the bottom plug body 32 disposed on the inside and the pipe portion 64 from being greatly deformed and damaged. ing. The ring part 62 and the pipe part 64 are preferably formed of a material that is as light as possible, and for example, aluminum or titanium is preferably used. The ring portion 62 and the pipe portion 64 are preferably formed of the same material, but may be formed of different materials.

As shown in FIG. 2B, the ring portion 62 has a substantially trapezoidal appearance. The ring portion 62 has a portion with a substantially constant inner diameter indicated by reference numeral 72 (hereinafter referred to as a constant diameter portion), and is formed adjacent to the constant diameter portion 72 and close to the first flange portion 44 of the butt plug body 32. An inclined surface 74 is formed that widens as the time elapses. And the outer peripheral surface of the ring part 62 is the smooth arcuate part 76 which diameter-expands as it goes to a base end side from the front end side.
In the ring portion 62, the radius r7 of the constant diameter portion 72 from the central axis of the ring portion 62 is the same as the radius r4 described above or slightly larger by the amount of adhesive applied. Therefore, as shown in FIG. 2A, a first gap (ring-shaped space) S1 is formed between the first flange portion 44 of the bottom plug body 32 and the inclined surface 74 of the ring portion 62. ing.
The hardness of the ring part 62 is formed to be harder than the hardness of the bottom plug body 32. For this reason, it is possible to prevent the bottom plug body 32 from being deformed by the external force from the outside by the ring portion 62 as much as possible. The gap S1 is formed in a substantially annular shape between the ring portion 62 and the bottom plug body 32, and when the external force is applied to the pipe portion 64 or when the external force is directly applied to the ring portion 62, the ring portion 62 is formed. It can be used as an escape portion that enters by elastic deformation.

  The pipe portion 64 includes a cylindrical portion 82 having an inner diameter and an outer diameter that are substantially constant, and a reduced diameter portion 84 that decreases in diameter toward the tip. In addition, a tail fitting (tail rope attachment ring) 88 is fixed to the tubular portion 82 via an attachment fitting 86. In addition, although the example which provides the attachment metal fitting 86 and the tail metal fitting 88 was demonstrated to the pipe part 64 in this embodiment, other than such a decoration, it is formed in a simple plane, a pattern etc. are formed, It is preferable that various decorations are made.

  The radius r8 from the central axis of the pipe portion 64 to the inner peripheral surface of the cylindrical portion 82 is the same as the radius r4 described above or slightly larger by the amount of adhesive applied. A length L2 between the rear end of the tubular portion 82 and the rear end of the reduced diameter portion 84 is larger than the length L1 between the first flange portion 44 of the bottom plug body 32 and the tip of the base portion 42. Therefore, the radius r9 of the inner peripheral surface from the central axis of the pipe portion 64 to the tip of the reduced diameter portion 84 can be made smaller than the radius r4 described above, and the radius from the center of the main shaft 12 to the outer peripheral surface. Same as r0 or slightly larger by the amount of adhesive applied.

Next, the structure in a state where each member of the bottom plug 30 is attached to the main rod 12 will be described with reference to FIG.
The outer peripheral surface of the main shaft 12 and the inner peripheral surface of the base portion 42 of the bottom plug body 32 are fixed by an adhesive.

  A ring portion 62 is externally fitted and fixed between the outer peripheral surface of the base portion 42 of the butt plug body 32 and the surface of the first flange portion 44 on the distal end side of the base portion 42. An inclined surface 74 is formed on the ring portion 62 on the side close to the first flange portion 44. For this reason, a first gap S <b> 1 is formed between the inclined surface 74 and the outer peripheral surfaces of the first flange portion 44 and the base portion 42. The gap S1 is formed in a substantially ring shape between the ring portion 62 and the bottom plug body 32, and is used as a relief groove into which the ring portion 62 is elastically deformed when an external force is applied to the ring portion 62. be able to.

  A pipe portion 64 is disposed on the outer peripheral surface of the base portion 42 of the bottom plug body 32 and at the tip of the ring portion 62. The reduced diameter portion 84 of the pipe portion 64 extends from the tip of the base portion 42 toward the front end side of the main rod 12 and is disposed outside the main rod 12. For this reason, a second gap S <b> 2 is formed between the tip of the base portion 42, the tip of the cylindrical portion 82, the inner peripheral surface of the reduced diameter portion 84, and the outer peripheral surface of the base rod 12. .

  In addition, the hardness of the pipe part 64 is formed harder than the hardness of the bottom plug body 32. For this reason, for example, when the fishing rod 10 is pulled out from a boat fishing holder (not shown), the reduced diameter portion 84 at the tip of the bottom plug 30 may be brought into contact with the holder lock of the holder. In addition, the pipe portion 64 can prevent the bottom plug body 32 from being deformed by an external force from the outside as much as possible. And this space | gap S2 is formed in the substantially cyclic | annular form between the pipe part 64, the bottom plug main body 32, and the outer peripheral surface of the main shaft 12, and when an external force is applied to the pipe part 64, the pipe part 64 is elastically deformed. Then, it can be used as an escape portion to enter.

  If an external force is applied to the distal end side of the reduced diameter portion 84, the distal end of the pipe portion 64 is elastically deformed to reduce the second gap S2, and the ring portion 62 is pressed to The air gap S1 is elastically deformed so as to be small. Therefore, the deformation of the pipe part 64 when an external force is applied to the pipe part 64 is received by the second gap S2, and the deformation of the ring part 62 when an external force is applied to the ring part 62 through the pipe part 64. It can be received in the first gap S1. Therefore, it is possible to prevent a large force from being applied to the bottom plug body 32 by the gaps S1 and S2.

  Further, there is a case where the butt member 34 of the butt plug 30 is applied to the angler's belly to move the heel up and down or pull up, but the surface protection member 36 is harder than the resin plug butt plug body 32. By being, it can suppress that the bottom plug main body 32 deform | transforms. For this reason, for example, when the fishing rod 10 is bent, it is possible to prevent the adhesion between the inner peripheral surface of the base portion 42 and the outer peripheral surface of the main rod 12 from being peeled off.

  Although not shown, a bobbin (or thread stopper) is formed on the outer peripheral surface of the base rod 12 at the tip of the reduced diameter portion 84 to achieve watertightness. Therefore, it is possible to prevent any object from directly colliding with the tip of the reduced diameter portion 84 and to prevent liquid such as seawater from entering between the pipe portion 64 and the bottom plug body 32 through the spool. can do.

  Since the ring part 62 and the pipe part 64 cover substantially all of the butt plug body 32 on the tip side of the first flange part 44, the butt plug body 32 can be prevented from being scratched and the butt plug 30 can be prevented. Even when the fishing rod 10 equipped with is left outside for a long time, it is possible to prevent the bottom plug body 32 from being deteriorated by ultraviolet rays as much as possible. For this reason, it can prevent effectively that the adhesive strength between the outer peripheral surface of the main shaft 12 and the inner peripheral surface of the bottom plug main body 32 falls.

  And the fall-off prevention part 54 of the bottom member 34 is engaged by elastic deformation between the first collar part 44 and the second collar part 46 of the bottom plug body 32.

  As shown in FIG. 2B, the radius r10 on the outer side of the drop-off preventing portion 54 of the bottom member 34 is larger than the radius (the largest radius of the bottom plug body 32) r2 of the first flange portion 44, The largest radius r11 of the ring portion 62 is the same as or slightly smaller than the radius r2 of the first flange portion 44. Further, the radius r12 of the outer diameter of the distal end of the constant diameter portion 72 of the ring portion 62 is equal to or slightly larger than the radius r13 of the outer diameter of the most proximal end of the tubular portion 82 of the pipe portion 64.

  For this reason, when the butt plug 30 collides with another object, the butt member 34 having a cushioning property is caused to collide as much as possible to prevent the butt plug main body 32, the ring portion 62, and the pipe portion 64 from colliding as much as possible. Can do. For this reason, it is possible to greatly attenuate the impact applied to the main rod 12 through the bottom plug 30. Further, the outer diameter of the buttocks member 34 including the buttocks plug 30 is increased by maximizing the outer diameter of the buttocks member 34 and gradually decreasing the outer diameter toward the distal end side of the buttocks plug 30 (the distal end side of the main rod 12). Can be easily grasped.

  In the present embodiment, the case where the butt plug body 32 is fixed to the outer peripheral surface of the main shaft 12 by bonding has been described. However, for example, a female screw is formed on the inner peripheral surface of the butt plug main body 32 to You may make it form a male screw in the surface and screw both together (screw fitting). In this case, the bottom plug body 32 can be attached to and detached from the main shaft 12. Moreover, it is also preferable to adhere and fix in the state which screwed both.

  The first gap S1 may be filled with an adhesive, and the base portion 42, the first flange portion 44, and the ring portion 62 of the bottom plug body 32 may be fixed by adhesion. In this case, since the adhesive acts as a cushion instead of the first gap S1, the deformation of the ring portion 62 can be buffered by the adhesive. Therefore, it is possible to prevent a large force from being applied to the bottom plug body 32. The same applies even if the second gap S2 is filled with an adhesive.

  As shown in FIG. 2B, in the present embodiment, the surface protection member 36 in which the ring portion 62 and the pipe portion 64 are separate members has been described, but the ring portion 62 and the pipe portion 64 are integrally formed. A surface protection member 36 may be used.

  Although one embodiment has been specifically described above with reference to the drawings, the present invention is not limited to the above-described embodiment, and includes all implementations performed without departing from the scope of the invention.

1 is an overall view showing a fishing rod formed as a two-joint boat rod according to an embodiment of the present invention. 1 shows a bottom plug used in a fishing rod according to an embodiment of the present invention, in which (A) is a schematic partial cross-sectional view showing a state where the bottom plug is attached to a main rod of the fishing rod, and (B) is a bottom plug. The schematic fragmentary sectional view of each member which shows the state isolate | separated into the structural member.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 30 ... Butt plug for fishing rods, 32 ... Butt plug main body, 34 ... Butt member, 36 ... Surface protection member, 42 ... Base part, 44 ... 1st collar part, 46 ... 2nd collar part, 52 ... Curved surface part, 52a ... space, 52b ... through hole, 54 ... drop-off prevention part, 62 ... ring part, 64 ... pipe part, 72 ... constant diameter part, 74 ... inclined surface, 76 ... arc-like part, 82 ... cylindrical part, 84 ... contracted Diameter portion, 86 ... mounting bracket, 88 ... tail bracket, S1 ... first gap, S2 ... second gap, T1 ... wall thickness, T2 ... distance, r1 to r13 ... radius.

Claims (3)

A cylindrical bottom plug body disposed on the outer peripheral surface of the rear end of the marshal,
A stopper part for disposing the bottom plug body in a state of preventing the bottom plug body from falling off, and a bottom member disposed at the rear end of the bottom plug body;
The bottom plug body includes a cylindrical base portion disposed on the outer periphery of the rear end of the base rod, and a first base portion provided within the length of the base portion and extending outside the base portion. A first collar part and a second collar part that is disposed on the rear end side of the first collar part and in which the drop-off prevention part of the bottom member is fitted between the first collar part and the first collar part. Formed of resin material,
A surface protection member that is formed of a harder material than the bottom plug body and covers at least a part of the base portion is disposed outside the base portion on the tip side of the first flange portion. Characteristic fishing rod butt plug. The surface protection member includes a ring portion that is externally fitted to the first flange portion and the base portion on the tip side of the bottom plug body,
The fishing rod bottom plug according to claim 1, wherein a gap is formed between the ring portion, the base portion, and the first rod portion.   3. A gap is formed between the surface protection member, the outer peripheral surface of the rear end of the base rod, and the front end side surface of the base portion. The bottom plug for fishing rods described in 1.

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