JP7654583B2 - Fishing rod spacer - Google Patents

Description

The present invention relates to a spacer for a fishing rod.

Conventionally, when attaching a reel seat or grip to the rod shaft of a fishing rod, a cylindrical spacer is used as a gap member to fill the gap between the inner surface of the reel seat or grip and the outer surface of the rod. The spacer is bonded to the reel seat, etc. and the rod shaft with adhesive.

JP 2001-333668 A

In order to solve the above problems, it is an object of the present invention to provide a fishing rod spacer that can reduce the weight of the fishing rod .

In order to solve the above-mentioned problems, the present invention provides a fishing rod spacer that is placed between a mounting member and a rod shaft of a fishing rod for mounting the mounting member, the spacer having a cylindrical shape with a first hollow portion extending axially, an inner wall portion into which the rod shaft is inserted , an outer wall portion that is concentric with the inner wall portion, has a larger diameter than the inner wall portion, and is cylindrical, and a second hollow portion formed between the inner wall portion and the outer wall portion.

According to the present invention, in addition to the first hollow portion, a second hollow portion is provided between the inner wall portion and the outer wall portion, which allows for weight reduction.

It is also preferable that the second hollow portion is provided with a vertical rib that radially connects the inner wall portion and the outer wall portion and extends in the axial direction, and that the second hollow portion extends in the axial direction along the vertical rib.
It is also preferable that the second hollow portion is provided with a transverse rib that radially connects the inner wall portion and the outer wall portion and extends in a circumferential direction, and that the second hollow portion extends in the circumferential direction along the transverse rib.

According to the present invention, the strength can be increased by providing vertical or horizontal ribs.

It is also preferable that at least one of the two ends is closed between the inner wall and the outer wall.

Here, for example, in the embodiment of Patent Document 1, a slit is provided that penetrates the end of the spacer in the radial direction. With this embodiment, when bonding with adhesive, the slit is filled with adhesive, which causes a problem of making the spacer heavy. In addition, since the adhesive gets inside the slit, the adhesive may not reach the appropriate bonding surface, which may cause poor bonding. In addition, since the portion other than the slit is solid, the spacer itself is heavy to begin with.
In contrast, according to the present invention, the gap between the inner wall portion and the outer wall portion is blocked at least on one of both ends, so that it is possible to prevent the adhesive from entering between the inner wall portion and the outer wall portion, thereby allowing the adhesive to flow to an appropriate bonding surface and achieving weight reduction by the first hollow portion provided between the inner wall portion and the outer wall portion.

According to the fishing rod spacer of the present invention, it is possible to reduce the weight .

1 is a perspective view of a fishing rod spacer according to a first embodiment of the present invention, seen from one end side. FIG. FIG. 2 is a perspective view of the fishing rod spacer according to the first embodiment, seen from the other end side. FIG. 2 is a side view of the fishing rod spacer according to the first embodiment. IV-IV cross-sectional view of FIG. 3. This is a cross-sectional view taken along the line VV in FIG. VI-VI cross-sectional view of FIG. 3. 11 is a side cross-sectional view showing a state in which the fishing rod spacer and the reel seat are assembled together. FIG. FIG. 4 is a side cross-sectional view showing a state in which the fishing rod spacer and the fishing rod are assembled together. FIG. 2 is a side cross-sectional view showing a state in which the fishing rod spacer, the reel seat, and the rod are assembled. FIG. 2 is a perspective view showing an initial stage of a method for manufacturing the fishing rod spacer according to the first embodiment of the present invention. FIG. 2 is a perspective view showing a final stage of the manufacturing method for the fishing rod spacer according to the first embodiment. FIG. 11 is a perspective view showing a manufacturing method of a fishing rod spacer according to a comparative example. FIG. 11 is a perspective view of a fishing rod spacer according to a second embodiment of the present invention, as viewed from one end side. FIG. 11 is a perspective view of a fishing rod spacer according to a second embodiment, seen from the other end side. FIG. 11 is a side view of a fishing rod spacer according to a second embodiment. This is a cross-sectional view taken along the line XVI-XVI of Figure 15. This is a cross-sectional view taken along the line XVII-XVII of Figure 15. 18 is a cross-sectional view of FIG. 15 along the line XVIII-XVIII. FIG. 11 is a perspective view of a fishing rod spacer according to a third embodiment of the present invention, as viewed from one end side. FIG. 11 is a perspective view of a fishing rod spacer according to a third embodiment, seen from the other end side. FIG. 11 is a side view of a fishing rod spacer according to a third embodiment. This is a cross-sectional view of Figure 21 along XXII-XXII. FIG. 11 is a perspective view of a fishing rod spacer according to a fourth embodiment of the present invention, as viewed from one end side. FIG. 11 is a perspective view of a fishing rod spacer according to a fourth embodiment, seen from the other end side. This is a cross-sectional view of Figure 23 along XXV-XXV. FIG. 13 is a cross-sectional view showing a modified example of the fourth embodiment. FIG. 13 is a perspective view showing a fishing rod spacer according to a fifth embodiment of the present invention. This is a cross-sectional view taken along line XXVIII-XXVIII of Figure 27. This is a cross-sectional view of Figure 27 taken along the line XXIX-XXIX. FIG. 13 is a side view showing a fishing rod spacer according to a sixth embodiment of the present invention. This is a cross-sectional view of XXXI-XXXI in Figure 30. This is a cross-sectional view of Figure 30 along the line XXXII-XXXII. This is a cross-sectional view taken along line XXXIII-XXXIII of Figure 30.

First Embodiment
Hereinafter, the fishing rod spacer according to the first embodiment of the present invention will be described with reference to the drawings. Each embodiment is merely an example, and each embodiment can be appropriately combined to configure the present invention. In addition, the reference numerals and descriptions of the same members may be omitted.

As shown in Figures 1 and 2, the fishing rod spacer 1 has a cylindrical shape. The fishing rod spacer 1 is used when attaching a reel seat 11 (see Figure 9) or a grip to a rod shaft 12 (see Figure 9) of a fishing rod (described later), and is interposed between the rod shaft 12 and the attachment via an adhesive.

The fishing rod spacer 1 is integrally formed from resin. Examples of resin include ABS resin, ASA resin, PLA resin, PP resin, PET resin, epoxy resin, acrylic resin, polycarbonate resin, polyamide resin, and resins containing carbon fiber. The fishing rod spacer 1 can be easily manufactured using a 3D printer or the like.

The fishing rod spacer 1 comprises an inner wall portion 2, an outer wall portion 3, a blocking portion 4, a first hollow portion 5, a vertical rib 6, and a second hollow portion 7. The inner wall portion 2 is cylindrical. Inside the inner wall portion 2, a first hollow portion 5 is formed that extends in the axial direction. The first hollow portion 5 is the portion into which the rod 12 (see FIG. 9), which will be described later, is inserted.

The outer wall portion 3 is cylindrical. The outer wall portion 3 is formed concentrically with the inner wall portion 2 and has a larger diameter than the inner wall portion 2. The blocking portion 4 is a ring-shaped, plate-shaped portion that blocks the area between the inner wall portion 2 and the outer wall portion 3 in the circumferential direction at one end side of the fishing rod spacer 1.

As shown in Figures 3 to 6, the vertical ribs 6 connect the inner wall portion 2 and the outer wall portion 3 in the radial direction and extend linearly and plate-like in the axial direction. Multiple vertical ribs 6 are arranged at regular intervals around the circumference.

The second hollow section 7 is a space defined by the inner wall section 2, the outer wall section 3, and a pair of vertical ribs 6, 6 adjacent in the circumferential direction. A plurality of second hollow sections 7 are arranged at regular intervals in the circumferential direction. The second hollow sections 7 are formed to communicate in the axial direction, with one end side being blocked by the blocking section 4 and the other end side being open. In this embodiment, the second hollow section 7 has a substantially trapezoidal cross section, but may have other shapes.

Next, as shown in Figures 7 to 9, a method of assembling the fishing rod spacer 1 will be described. First, as shown in Figure 7, the fishing rod spacer 1 and the reel seat 11 are assembled. The reel seat 11 is a cylindrical member for attaching and detaching a reel (not shown). The reel seat 11 is depicted in a simplified form in Figures 7 to 9. The inner diameter of the reel seat 11 is formed to be slightly larger than the outer diameter of the fishing rod spacer 1. After applying adhesive to at least one of the inner peripheral surface of the reel seat 11 and the outer peripheral surface of the fishing rod spacer 1, one end side (the blocking portion 4 side) of the fishing rod spacer 1 is inserted into the hollow portion of the reel seat 11. In other words, it is assembled so that the blocking portion 4 faces the reel seat 11.

Next, as shown in Figure 8, the fishing rod spacer 1 and the rod 12 are assembled. The rod 12 is a tubular member that forms the main part of the fishing rod. After applying adhesive to at least one of the inner peripheral surface of the inner wall portion 2 of the fishing rod spacer 1 and the outer peripheral surface of the rod 12, the rod 12 is inserted from one end side (the closing portion 4 side) of the fishing rod spacer 1. In other words, the closing portion 4 is assembled so that it faces the rod 12. Finally, as shown in Figure 9, sealing members S, S are installed on both ends of the fishing rod spacer 1 to complete the assembly.

Next, as shown in Figures 10 and 11, a method for manufacturing a fishing rod spacer according to this embodiment will be described. In the method for manufacturing a fishing rod spacer, a 3D printer is used to integrally form the spacer with resin. Here, an example is shown in which 12 fishing rod spacers 1 are molded in one molding cycle. The number of pieces that can be molded in one molding cycle can be set appropriately depending on the size of the table (bed) T of the 3D printer and the outer diameter of the fishing rod spacer 1.

First, molten resin is ejected from the nozzle of a 3D printer onto the top surface of table T to form the blocking portion 4. Once all blocking portions 4 have been formed, the inner wall portion 2, outer wall portion 3, and vertical rib 6 (second hollow portion 7) are layered on each blocking portion 4 at a predetermined height in a direction perpendicular to the top surface of table T. In other words, the molten resin is layered so that the direction perpendicular to the top surface of table T is parallel to the axial direction of each fishing rod spacer 1. As shown in FIG. 11, when the inner wall portion 2 etc. reach a predetermined height, the fishing rod spacer 1 is completed.

Here, FIG. 12 is a perspective view showing a manufacturing method for a fishing rod spacer according to a comparative example. In the comparative example, the axial direction of the fishing rod spacer 1 is perpendicular to the direction perpendicular to the top surface of the table T. In other words, after a part of the outer wall 3 is molded in a straight line on the top surface of the table T, it is molded so that it spreads outward in the circumferential direction from that part. It is also possible to mold the fishing rod spacer 1 using the manufacturing method for a fishing rod spacer according to the comparative example in FIG. 12.

However, with the manufacturing method for fishing rod spacers according to the comparative example, the molding area per fishing rod spacer 1 becomes large, so that in this comparative example, only three pieces can be molded in one molding cycle. In addition, because there are areas that need to be molded so that they expand in the circumferential direction from the bottom to the top, support material is required. This causes problems such as the molding process becoming complicated, the molding precision decreasing, and the manufacturing efficiency being low.

In contrast, the spacer manufacturing method according to this embodiment simply involves stacking resin in a direction perpendicular to the top surface of the table T, eliminating the need for support material, while also ensuring a consistent cross-sectional shape and high molding precision (roundness). Furthermore, 12 fishing rod spacers 1 can be molded in one molding cycle. In other words, the number of pieces molded per unit area can be increased, improving manufacturing efficiency.

The fishing rod spacer 1 according to the present embodiment described above has a first hollow portion 5 and a second hollow portion 7 between the inner wall portion 2 and the outer wall portion 3, which allows for weight reduction. The second hollow portion 7 may have a solid portion in the axial direction, but in this embodiment, it is hollow and communicates from the blocking portion 4 to the other end, allowing for even greater weight reduction.

In addition, in this embodiment, a vertical rib 6 is provided that connects the inner wall portion 2 and the outer wall portion 3 and extends in the axial direction, and the second hollow portion 7 extends along the vertical rib 6. In this way, by providing the vertical rib 6, the strength of the fishing rod spacer 1 can be increased while also reducing its weight.

In addition, by providing a blocking portion 4 on one end side of the fishing rod spacer 1, it is possible to prevent adhesive from entering the second hollow portion 7 when assembling the reel seat 11 and the rod shaft 12. This makes it possible to prevent adhesive from entering the second hollow portion 7, which would otherwise increase the weight. In addition, because adhesive does not enter the second hollow portion 7, an appropriate amount of adhesive can flow into the adhesive surface. In other words, it is possible to reduce weight while controlling the flow of adhesive to a certain extent.

Although the embodiment of the present invention has been described above, appropriate design changes are possible within the scope of the present invention. For example, although the blocking portion 4 is provided at the axial end in this embodiment, it may be provided at a position set back from the end in the axial direction inward. In other words, "both ends" in the claims includes the end face of the fishing rod spacer 1 and the position set back from the end face. In addition, the blocking portion 4 may be provided at the other end, and the blocking portion 4 may be provided at both ends of the fishing rod spacer 1. Furthermore, when the blocking portion 4 is provided at both one end and the other end, the vertical rib 6 may not be provided, and a single hollow portion may be provided.

Conversely, the fishing rod spacer 1 may have no blocking portion 4 at either end, while leaving the vertical ribs 6. In this case, some adhesive will seep into the second hollow portion 7, but the second hollow portion 7 between the inner wall portion 2 and the outer wall portion 3 will ensure a lighter weight. In addition, the adhesive will seep into the second hollow portion 7 at the ends of the fishing rod spacer 1, increasing the bonding area and increasing the joining strength.

In addition, the vertical ribs 6 and the second hollow portion 7 are linear in this embodiment, but may have other shapes. For example, the ribs may be arranged in a spiral shape to form a spiral hollow portion, or the ribs may be arranged in a slanted manner with respect to the axial direction to form a slanted hollow portion. The second hollow portion 7 may be provided intermittently in the axial direction. In other words, the second hollow portion 7 may be formed only in at least a portion between the inner wall portion 2 and the outer wall portion 3. The second hollow portion 7 may be formed by combining the vertical ribs 6 with the lateral ribs 8E described later, and may be a space formed in a lattice shape by the vertical ribs 6 and the lateral ribs 8E. In this way, the strength against bending and twisting can be increased by forming the second hollow portion 7 (rib) in a combination of various shapes. Variations of the spacer for fishing rods will be described in detail below.

Second Embodiment
Next, a fishing rod spacer 1A according to a second embodiment of the present invention will be described as shown in Figures 13 to 18. In the fishing rod spacer 1A, the configuration of the blocking portion 4A is different from that of the first embodiment. In this embodiment, the differences from the first embodiment will be mainly described.

The fishing rod spacer 1A includes an inner wall portion 2, an outer wall portion 3, a blocking portion 4A, a first hollow portion 5, a vertical rib 6, and a second hollow portion 7. The blocking portion 4A is a portion that blocks the space between the inner wall portion 2 and the outer wall portion 3 in the circumferential direction at one end side. The blocking portion 4A is ring-shaped. As shown in Figures 15 to 18, the inner peripheral surface of the blocking portion 4A has the same diameter as the inner peripheral surface of the inner wall portion 2. The outer peripheral surface of the blocking portion 4A has the same diameter as the outer peripheral surface of the outer wall portion 3. The inside of the blocking portion 4A is solid. The blocking portion 4A may be molded integrally with the inner wall portion 2 and the outer wall portion 3, or the blocking portion 4A may be made separately and then joined by welding or adhesive.

The fishing rod spacer 1A according to this embodiment can achieve substantially the same effects as the first embodiment. The inside of the blocking portion 4A may be hollow.

Third Embodiment
Next, a fishing rod spacer 1B according to a third embodiment of the present invention will be described as shown in Figures 19 to 22. In the fishing rod spacer 1B, the configuration of the blocking portion 4B is different from that of the first embodiment. In this embodiment, the differences from the first embodiment will be mainly described.

The fishing rod spacer 1B includes an inner wall 2, an outer wall 3, a blocking portion 4B, a first hollow portion 5, a vertical rib 6, and a second hollow portion 7. The blocking portion 4B is a portion that blocks the space between the inner wall portion 2 and the outer wall portion 3 in the circumferential direction at one end. The blocking portion 4B is ring-shaped. As shown in FIG. 22, the inner peripheral surface of the blocking portion 4B has the same diameter as the inner peripheral surface of the inner wall portion 2. The outer peripheral surface of the blocking portion 4B has the same diameter as the outer peripheral surface of the outer wall portion 3. The inside of the blocking portion 4B is solid. The outer peripheral surface of the blocking portion 4B has an inclined surface 21 that decreases in diameter toward the tip. The blocking portion 4B may be molded integrally with the inner wall portion 2 and the outer wall portion 3, or the blocking portion 4B may be made separately and then joined by welding or adhesive.

The fishing rod spacer 1B according to this embodiment can achieve substantially the same effects as the first embodiment. In addition, since the closure portion 4B has an inclined surface 21, when the fishing rod spacer 1B is attached to a mounting member such as a reel seat 11, the adhesive can be introduced to the appropriate position by penetrating the adhesive surface along the inclined surface 21, thereby increasing the adhesive strength. The inside of the closure portion 4B may be hollow.

<Fourth embodiment>
23 to 25, a fishing rod spacer 1C according to a fourth embodiment of the present invention will be described. In this embodiment, the differences from the first embodiment will be mainly described.

The fishing rod spacer 1C is composed of a main body 1Ca and a cover closing part (closing part) 4Ca. The main body 1Ca is the same as the fishing rod spacer 1 of the first embodiment. The cover closing part 4Ca has a bottom part 31, an inner wall part 32, and an outer wall part 33. The bottom part 31 is ring-shaped and plate-shaped. The inner wall part 32 is a cylindrical part that extends vertically from the inner peripheral edge of the bottom part 31.

The outer wall portion 33 is a cylindrical portion extending vertically from the outer peripheral edge of the bottom portion 31. The outer wall portion 33 has a larger diameter than the inner wall portion 32. The outer diameter of the outer wall portion 33 is equal to the outer diameter of the outer wall portion 3. A second hollow portion 37 is formed between the inner wall portion 32 and the outer wall portion 33. As shown in FIG. 25, when the fishing rod spacer 1C is assembled to the mounting member and the rod 12, the closing portion 4 of the main body portion 1Ca is brought into contact with the bottom portion 31 of the lid closing portion 4Ca. The main body portion 1Ca and the lid closing portion 4Ca may be molded separately or integrally.

The fishing rod spacer 1C according to the fourth embodiment can achieve substantially the same effect as the first embodiment. In addition, the second hollow portion 37 is provided in the cover closing portion (closing portion) 4Ca, and is open to one side, so that adhesive can flow into the second hollow portion 37. This increases the adhesion area between the attached member and the rod 12, and increases the bonding strength. Although the adhesive flows into the second hollow portion 37, the rod becomes slightly heavier, but the second hollow portion 7 allows for weight reduction. In addition, the amount of adhesive flowing in (adhesive strength) can be adjusted by adjusting the depth of the bottom 31 of the cover closing portion (closing portion) 4Ca.

In the fourth embodiment, for example, the closing portion 4 of the main body 1Ca may be omitted, and the second hollow portion 7 may be closed by the lid closing portion 4Ca. Also, a fishing rod spacer 1CA according to a modified example of the fourth embodiment shown in FIG. 26 may be used. The fishing rod spacer 1CA differs from the first embodiment in that the closing portion 4C is set back from one end toward the inside in the axial direction. Even in this case, the adhesive can be introduced into the second hollow portion 7, so that an effect substantially equivalent to that of the fourth embodiment can be achieved.

Fifth Embodiment
Next, a fishing rod spacer 1D according to a fifth embodiment of the present invention will be described as shown in Figures 27 to 29. The fishing rod spacer 1D differs from the first embodiment in that it has a composite structure. In this embodiment, the differences from the first embodiment will be mainly described.

The fishing rod spacer 1D does not have a blocking portion, and has an inner wall portion 2, an outer wall portion 3, a first hollow portion 5, a vertical rib 6, and a second hollow portion 7. In addition, a plurality of fishing rod spacers 1D are arranged side by side with gaps in the axial direction, forming a composite fishing rod spacer.

The composite fishing rod spacer according to this embodiment can achieve substantially the same effects as the first embodiment. In addition, the composite fishing rod spacer can be made lighter by providing a gap between adjacent fishing rod spacers 1D, 1D in the axial direction. In addition, by adjusting the number of fishing rod spacers 1D that make up the composite fishing rod spacer, it can accommodate a variety of lengths.

Sixth Embodiment
Next, a fishing rod spacer 1E according to a sixth embodiment of the present invention will be described as shown in Figures 30 to 33. The fishing rod spacer 1E differs from the first embodiment in that the transverse ribs 8E and the second hollow portion 7E extend along the circumferential direction. In this embodiment, the differences from the first embodiment will be mainly described.

The fishing rod spacer 1E includes an inner wall portion 2, an outer wall portion 3, a blocking portion 4E, a first hollow portion 5, a vertical rib 6E, a second hollow portion 7E, and a horizontal rib 8E. The blocking portion 4E is formed so as to block the space between the inner wall portion 2 and the outer wall portion 3 in the circumferential direction at both ends of the fishing rod spacer 1E.

As shown in Figures 31 and 32, the vertical rib 6E is a plate-like portion that connects the inner wall portion 2 and the outer wall portion 3 in the radial direction. The vertical rib 6E is formed along the axial direction between the blocking portions 4E, 4E. Although the vertical rib 6E may be omitted, two vertical ribs 6E are provided at opposing positions in this embodiment.

Referring to Figures 31 to 33, the horizontal rib 8E is a portion that radially connects the inner wall portion 2 and the outer wall portion 3 and extends in the circumferential direction in a ring-like and plate-like shape. A plurality of horizontal ribs 8E are arranged at regular intervals in the axial direction. The second hollow portion 7E is a space formed by the inner wall portion 2, the outer wall portion 3, the vertical ribs 6E, 6E, and a pair of horizontal ribs 8E, 8E adjacent in the axial direction. A plurality of second hollow portions 7E are arranged at regular intervals in the axial direction. As shown in Figure 31, the second hollow portion 7E has a rectangular cross section, but may have other shapes.

In this embodiment, it is possible to achieve substantially the same effect as in the first embodiment. In other words, by providing multiple horizontal ribs 8E, it is possible to increase the strength of the fishing rod spacer 1E. In addition, in this embodiment, since the blocking portions 4E, 4E are provided at both ends in the axial direction, adhesive will not penetrate into the second hollow portion 7E regardless of which side of the fishing rod spacer 1E the mounting member such as the reel seat 11 and the rod shaft 12 are inserted from.

REFERENCE SIGNS LIST 1 fishing rod spacer 2 inner wall portion 3 outer wall portion 4 closing portion 5 first hollow portion 6 longitudinal rib 7 second hollow portion 8E transverse rib T table

Claims (4)

A fishing rod spacer for mounting a mounting member to a rod shaft of a fishing rod, the fishing rod spacer being disposed between the mounting member and the rod shaft of the fishing rod,
a first hollow portion extending in an axial direction , the first hollow portion having a cylindrical shape, and an inner wall portion into which the rod is inserted ;
An outer wall portion that is concentric with the inner wall portion, has a larger diameter than the inner wall portion, and has a cylindrical shape;
a second hollow portion formed between the inner wall portion and the outer wall portion. A longitudinal rib is provided to radially connect the inner wall portion and the outer wall portion and extend in an axial direction,
2. The fishing rod spacer according to claim 1, wherein the second hollow portion extends in the axial direction along the longitudinal rib. A transverse rib is provided to radially connect the inner wall portion and the outer wall portion and extend in a circumferential direction,
3. The fishing rod spacer according to claim 1, wherein the second hollow portion extends in a circumferential direction along the transverse rib. A spacer for a fishing rod according to any one of claims 1 to 3, characterized in that at least one of the two ends is closed between the inner wall and the outer wall.

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