JP6814564B2 - Reel seat body, reel seat and fishing rod - Google Patents

Description

The present invention relates to a reel seat main body of a reel seat for a fishing rod for fixing a reel to a fishing rod, a reel seat provided with the reel seat main body, and a fishing rod provided with the reel seat.

As a reel sheet for a fishing rod for fixing a reel to a fishing rod, a reel sheet having a tubular reel sheet body as shown in Patent Document 1 below is known, and the inside thereof is configured as a rod insertion hole. The rod body (blank) is inserted into the rod insertion hole and adhered. The reel sheet body is formed from synthetic resin by injection molding. Therefore, the wall surface of the rod insertion hole has a draft when the mold is pulled out in the axial direction during injection molding, and the rod insertion hole has a shape in which the diameter is gradually expanded toward the end portion. It has become.

FIG. 10 shows a schematic view of the reel seat main body 101. In this figure, the draft of the wall surface of the rod insertion hole 102 is exaggerated. A parting line 103 exists in the middle of the rod insertion hole 102 in the axial direction. When the parting line 103 exists in this way, the mold is pulled out on one end side and the other end side of the parting line 103 as a boundary. Therefore, the diameter of the rod insertion hole 102 gradually increases toward both ends from the parting line 103 as a starting point. Therefore, the gap between the wall surface of the rod insertion hole 102 and the outer peripheral surface of the rod body 150 gradually increases toward both ends of the rod insertion hole 102 and becomes maximum at both ends of the rod insertion hole 102. Since a large gap is formed between the rod body 150 and the rod body 150 at both ends of the rod insertion hole 102 in this way, the reel sheet body 101 easily swings or rattles with respect to the rod body 150. There is a problem that the adhesive strength of the reel sheet main body 101 to the rod main body 150 tends to be insufficient.

Japanese Unexamined Patent Publication No. 2008-29298

Therefore, it is an object of the present invention to provide a reel sheet main body, a reel sheet, and a fishing rod capable of improving the adhesive strength with the rod main body.

The present invention has been made to solve the above problems, and the reel sheet according to the present invention is an injection-molded product, and is a reel sheet main body having a rod insertion hole into which a rod main body is inserted. The wall surface of the hole is characterized in that a large gradient portion having a relatively large draft and a small gradient portion having a relatively small draft are formed.

In the reel sheet having this configuration, the rod body is inserted into the rod insertion hole. Then, the wall surface of the rod insertion hole and the outer peripheral surface of the rod body are directly adhered to each other, or a tubular spacer is interposed between the reel sheet and the rod body, and the reel sheet and the rod body are interposed through the spacer. However, in order to simplify the explanation, a case where the outer peripheral surface of the rod body is directly adhered and fixed to the wall surface of the rod insertion hole will be described below. A large slope portion and a small slope portion are formed on the wall surface of the rod insertion hole of the reel sheet. Since the large gradient portion is formed, the mold can be smoothly pulled out from the rod insertion hole during molding. On the other hand, since the small slope portion is formed, the gap between the rod body and the end of the rod insertion hole becomes small in the small slope portion. Therefore, the reel sheet does not easily rattle in the radial direction with respect to the rod body at the end of the rod insertion hole, and can be firmly adhered and fixed.

In particular, the draft of the small slope portion is preferably 0, and the gap between the rod body and the end of the rod insertion hole can be minimized.

Further, on the wall surface of the rod insertion hole, a plurality of peripheral surfaces having an arcuate cross-sectional view centered on the center line of the rod insertion hole are formed at intervals in the circumferential direction, and between adjacent peripheral surfaces. It is preferable that the side edge portions of the peripheral surface portions are formed with a flat surface portion which is connected by a straight line in a cross-sectional view, the peripheral surface portion is a large gradient portion, and the flat surface portion is a small gradient portion. As described above, when the peripheral surface portion having an arc shape in cross section centered on the center line of the rod insertion hole is a large gradient portion and the flat surface portion between the peripheral surface portions is a small gradient portion, the rod insertion hole is formed. It is easy to manufacture a mold for this purpose. That is, by D-cutting a part of the outer peripheral surface of the mold into a flat surface, a flat surface portion having a small gradient can be formed from the D-cut portion, and from the remaining portion remaining without D-cutting. A peripheral surface portion that is a large gradient portion can be formed. Therefore, the rod insertion hole can be formed with high accuracy, and as a result, the adhesive force with the rod body can be enhanced.

In addition, a plurality of ridges extending along the axial direction are formed on the wall surface of the rod insertion hole at intervals in the circumferential direction, and the center line of the rod insertion hole is formed between adjacent ridges. It is also preferable that the peripheral surface portions having an arcuate cross-sectional view at the center are formed, the peripheral surface portion is a large gradient portion, and the protruding end surface of the ridge is a small gradient portion. In this way, when a ridge is formed on the wall surface of the rod insertion hole, the adhesive force with the rod body can be enhanced by making the ridge end surface a small slope portion. In addition, it is easy to manufacture a mold for forming a rod insertion hole.

Further, the reel seat according to the present invention includes the reel seat main body.

Further, the fishing rod according to the present invention is provided with the above reel seat.

As described above, since the large-gradient portion and the small-gradient portion are formed on the wall surface of the rod insertion hole, the large-gradient portion ensures the releasability at the time of molding, and the small-gradient portion prevents rattling with the rod body. It can be suppressed and the adhesive force with the rod body can be improved.

The side view which showed the open end part of the reel seat body in one Embodiment of this invention as a schematic view. A cross-sectional view taken along the line AA of FIG. 1 showing the reel seat body as a schematic view. BB sectional view of FIG. 1 showing the reel seat main body as a schematic view. The front view which shows the reel seat main body in one Embodiment of this invention. Top view of the reel seat body. A vertical cross-sectional view of the reel seat body cut along the axial direction. The side view which shows the main part of the opening end part of the reel seat body. The vertical sectional view of the reel seat body in another embodiment of the present invention cut along the axial direction. The side view which shows the opening end part of the reel seat body. The vertical sectional view which showed the relationship between the conventional reel seat main body and a rod main body as a schematic view.

Hereinafter, the reel sheet main body of the reel sheet according to the embodiment of the present invention will be described with reference to FIGS. 1 to 3 which are schematic views showing an exaggerated draft. In FIGS. 1 to 3, the reel sheet main body 1 is simplified and shown as a tubular shape, and the draft of the rod insertion hole 2 which is the inner peripheral surface is greatly exaggerated.

The reel sheet main body 1 in the present embodiment is an injection-molded product made of synthetic resin and formed by injection molding. The mold opening direction of the mold is the left-right direction in FIGS. 2 and 3, and is the axial direction of the reel sheet main body 1, that is, the direction of the center line 2a of the rod insertion hole 2. Then, a case where the parting line 3 formed by the mating surfaces of the mold is formed in the middle portion of the rod insertion hole 2, specifically, the central portion will be described as an example. The rod insertion hole 2 has a circular cross-sectional view. The cross section is a cross section when cut in a direction orthogonal to the center line 2a of the rod insertion hole 2. Since the parting line 3 is formed in the central portion of the rod insertion hole 2, the portion where the draft is formed is enlarged toward the openings at both ends.

As shown in FIG. 1, the wall surface of the rod insertion hole 2 is formed between the peripheral surface portion 20 having an arcuate cross-sectional view centered on the center line 2a of the rod insertion hole 2 and the peripheral surface portion 20 adjacent to each other. It includes a flat surface portion 21 in which the side edge portions of the 20 are connected by a straight line in a cross-sectional view. A plurality of peripheral surface portions 20 are formed at intervals in the circumferential direction, a plurality of flat surface portions 21 are also formed at intervals in the circumferential direction, and the peripheral surface portions 20 and the flat surface portions 21 are formed alternately in the circumferential direction. There is.

The peripheral surface portions 20 are formed at regular intervals in the circumferential direction, but may have a plurality of intervals. Further, the number of the peripheral surface portions 20 is arbitrary and may be three or more, and in the present embodiment, the case of four is illustrated. Further, each peripheral surface portion 20 has the same central angle, but may be different, and there are two types of peripheral surface portions 20 having different central angles, or three or more types of peripheral surface portions 20 are formed. You may be there. The four peripheral surface portions 20 are on the same circle in a cross-sectional view centered on the center line 2a of the rod insertion hole 2, and are composed of a part of the same circle.

The flat surface portion 21 is formed of a portion of the wall surface of the rod insertion hole 2 other than the peripheral surface portion 20. Since four peripheral surface portions 20 are formed in the present embodiment, four flat surface portions 21 are also formed corresponding to the four peripheral surface portions 20, and each flat surface portion 21 is formed so as to connect the adjacent peripheral surface portions 20 to each other. There is. In the cross-sectional view, an isosceles triangle is formed when both side edges of the flat surface portion 21 and the center line 2a of the rod insertion hole 2 are connected. The boundary between the peripheral surface portion 20 and the flat surface portion 21 is a side edge portion of the peripheral surface portion 20, and at the same time, a side edge portion of the flat surface portion 21. The distance from the center line 2a of the rod insertion hole 2 is the shortest in the central portion in the width direction of the flat surface portion 21. All four flat surface portions 21 are formed in the same shape, and are in contact with one circle at the central portion in the width direction of each flat surface portion 21. Although the outer peripheral surface 50a of the rod body is shown by a two-dot chain line in FIG. 1, the outer peripheral surface 50a of the rod body does not abut on the peripheral surface portion 20 but is in contact with the central portion in the width direction of the four flat surface portions 21. Therefore, the center line 2a of the rod insertion hole 2 and the center line of the rod body theoretically coincide with each other. In other words, the outer peripheral surface 50a of the rod body comes into contact with a virtual regular polygon formed by the plurality of flat surfaces 21, and the outer peripheral surface 50a of the rod body is formed by the plurality of flat surfaces 21. It becomes a circle inscribed in the polygon.

The draft during molding will be described. In the present embodiment, the peripheral surface portion 20 is a large gradient portion, and the flat surface portion 21 is a small gradient portion. The large gradient portion is a portion having a relatively large draft, and the small gradient portion is a portion having a relatively small draft. Therefore, the draft in the large gradient portion is larger than the draft in the small gradient portion, but in the present embodiment, the draft in the small gradient portion is set to 0. Further, the draft in the large gradient portion is a draft that is commonly used in injection molding, and is set according to various molding conditions.

The peripheral surface portion 20 is a large gradient portion and has a draft portion, while the flat surface portion 21 is a small gradient portion having a draft portion of 0. Therefore, as shown in FIG. 3, the peripheral surface portion 20 gradually increases in distance from the center line 2a of the rod insertion hole 2 toward the opening end portion starting from the parting line 3, that is, the diameter is expanded. It has an inclined shape. On the other hand, since the draft of the flat surface portion 21 is 0, the distance of the rod insertion hole 2 from the center line 2a is constant along the axial direction of the rod insertion hole 2, and therefore, the rod insertion hole 2 is formed. In a vertical cross-sectional view in which the reel sheet main body 1 is cut in the axial direction of 2, the flat surface portion 21 and the center line 2a of the rod insertion hole 2 are parallel as shown in FIG. Further, as shown in FIGS. 2 and 3, the width of the flat surface portion 21 is 0 in the parting line 3, and gradually expands from there toward the opening end portion of the rod insertion hole 2. Therefore, in the vertical cross-sectional view, the flat surface portion 21 is an isosceles triangle having the parting line 3 as the apex and the opening end as the base. In addition, in FIGS. 2 and 3, a large number of dots are attached to the flat surface portion 21.

In this way, the distance from the center line 2a of the rod insertion hole 2 gradually increases in the peripheral surface portion 20 from the parting line 3 toward the opening end portion of the rod insertion hole 2, and in the flat surface portion 21. Although the distance from the center line 2a of the rod insertion hole 2 is constant, its width gradually increases. Therefore, when the rod body is inserted into the rod insertion hole 2, the outer peripheral surface 50a of the rod body abuts on the flat surface portion 21 at both open ends of the rod insertion hole 2 without abutting on the peripheral surface portion 20. become. In addition, although it is described that the outer peripheral surface 50a of the rod body abuts on the flat surface portion 21 for ease of explanation, in reality, there is a slight gap between the two to the extent that the rod body can be inserted. It is formed. Further, the gap formed between the outer peripheral surface 50a of the rod body and the peripheral surface portion 20 can be used as an adhesive reservoir for accumulating the adhesive.

Next, FIGS. 4 to 6 show the reel seat main body 1 which further embodies the above points. 4 is a front view, FIG. 5 is a plan view, and FIG. 6 is a vertical sectional view. The reel seat using the reel seat body 1 is also called a so-called pipe seat and is for fixing a spinning reel to a fishing rod, but it may also be for fixing a biaxial reel.

A male screw portion 10 for screwing a nut (not shown) is formed on the outer peripheral surface of the reel seat main body 1 on the one end side. The nut is for moving a movable hood (not shown) along the axial direction, and one end of a reel leg (not shown) is inserted into the movable hood. On the other hand, a hood portion 11 into which the other end of the reel leg is inserted is integrally formed on the outer peripheral surface of the reel seat body 1 on the other end side, and the hood portion 11 of the reel seat body 1 and the movable hood are integrally formed. Hold the reel leg in the front-back direction, which is the axial direction, and fix the reel to the fishing rod. A tubular grip (not shown) is attached to the other end side of the reel seat body 1. The grip is formed from, for example, foamed EVA, cork, or the like. Therefore, a grip mounting portion 12 corresponding to the inner peripheral surface of the grip is formed on the outer peripheral surface of the reel seat main body 1 on the other end side.

On the wall surface of the rod insertion hole 2 of the reel sheet main body 1, the peripheral surface portion 20 having a large gradient portion and the flat surface portion 21 having a small gradient portion alternate in the circumferential direction as shown in FIGS. Is formed in. The draft of the flat surface portion 21 is 0. Although the flat surface portion 21 is also shown with a large number of dots in FIG. 6, in the reel seat main body 1, a total of eight flat surface portions 21 are formed, and a total of eight peripheral surface portions 20 are also formed. There is. The eight flat surface portions 21 and the eight peripheral surface portions 20 are formed at regular intervals in the circumferential direction, respectively. Although the outer peripheral surface 50a of the rod body is shown by a two-dot chain line in FIG. 7, since the flat surface portion 21 is eight, when the rod body is inserted into the rod insertion hole 2, the outer peripheral surface 50a of the rod body is inserted. Will abut on a virtual regular octagon consisting of eight planes 21.

As shown in FIG. 6, the parting line 3 exists in the middle part of the rod insertion hole 2 in the axial direction, but exists at a position offset to one end side instead of the central part in the axial direction. doing. Specifically, the parting line 3 is offset toward the male screw portion 10. Therefore, the distance from the parting line 3 to the open end on the one end side where the male screw portion 10 is located is relatively short, and the distance from the parting line 3 to the open end on the other end side is relatively long. ..

A movable hood and nut (not shown) are attached to the reel seat main body 1 configured as described above to form a reel seat, and the reel seat is adhesively fixed to the outer peripheral surface 50a of the rod main body. The reel sheet may be adhesively fixed to the rod body via a tubular spacer. When the outer peripheral surface 50a of the rod body is directly adhered and fixed to the wall surface of the rod insertion hole 2 of the reel sheet body 1, the outer peripheral surface 50a of the rod body does not come into contact with the peripheral surface 20 of the wall surface of the rod insertion hole 2. A gap is formed between the peripheral surface portion 20 and the outer peripheral surface 50a of the rod body, and the gap is particularly large at both ends of the rod insertion hole 2. Therefore, the rod body and the reel sheet body 1 can be firmly bonded and fixed by using the gap as an adhesive pool. On the other hand, since the flat surface portion 21 having a draft of 0 is formed on the wall surface of the rod insertion hole 2, the gap between the flat surface portion 21 and the outer peripheral surface 50a of the rod body is extremely small at both ends of the rod insertion hole 2. Therefore, it is possible to prevent the reel seat main body 1 from swinging or rattling with respect to the rod main body. Therefore, the reel sheet main body 1 can be adhered and fixed to the rod main body with high accuracy, and in particular, the coaxiality and parallelism of both can be made high accuracy.

Further, although the flat surface portion 21 having a draft of 0 is formed, the peripheral surface portion 20 is formed with a normal draft, so that the mold release property from the mold is also excellent, and the molded reel. The seat body 1 can be released smoothly. Further, since the flat surface portion 21 has a shape protruding inward with respect to the peripheral surface portion 20, it is easy to manufacture a mold, and therefore, the reel sheet main body 1 can be molded with high accuracy.

As shown in FIGS. 8 and 9, the wall surface of the rod insertion hole 2 may be provided with a ridge 30 extending along the axial direction. Specifically, the ridge 30 may be formed over the entire length of the rod insertion hole 2, but is preferably formed on only one side from the parting line 3, and in particular, the male screw portion 10 is formed. It is formed on one end side. The ridge 30 is formed from the parting line 3 over substantially the entire length on one side, but a portion where the ridge 30 is not formed remains in the vicinity of the opening end of the rod insertion hole 2.

The ridge 30 functions as a rib. Therefore, by forming the ridge 30, it is possible to secure the strength of the reel sheet body 1 while suppressing the wall thickness as a whole, and in particular, it is possible to sufficiently secure the strength of the formation region of the male screw portion 10. .. As shown in FIG. 9, the ridge 30 projects in the radial direction toward the center line 2a of the rod insertion hole 2. Therefore, the protrusion 30 has a protruding direction in the radial direction, and gradually narrows toward the center line 2a of the rod insertion hole 2. That is, the ridge 30 has a trapezoidal shape in a cross-sectional view. The number and arrangement of the ridges 30 are arbitrary, but preferably, a plurality of ridges 30 are formed at regular intervals in the circumferential direction, and the amount of protrusion thereof is also uniform.

When the ridge 30 is projected from the wall surface of the rod insertion hole 2, the ridge surface 30a, which is the tip surface of the ridge 30, is set as a small slope portion. The protruding end surface 30a of the ridge 30 may be a plane having a linear cross-sectional view, or may be a peripheral surface having an arc-shaped cross-sectional view centered on the center line 2a of the rod insertion hole 2. .. The draft portion of the small slope portion may have a draft of 0 as described above, so that the tip surface 30a of the ridge 30 is parallel to the center line 2a of the rod insertion hole 2. On the other hand, the remaining portion of the wall surface of the rod insertion hole 2 in which the ridges 30 are not formed becomes the peripheral surface portion 20 as described above, and is formed between the adjacent ridges 30. The peripheral surface portion 20 is configured to have a normal draft, and therefore the peripheral surface portion 20 is a large gradient portion. It is preferable to provide a draft on both side surfaces 30b of the ridge 30.

In this way, by making the protruding end surface 30a of the ridge 30 a small gradient portion, it is possible to suppress rattling of the reel sheet main body 1 with respect to the rod main body as in the case of the flat surface portion 21, and the reel sheet main body 1 can be made into a rod. Can be firmly adhered to the main body. Further, the gap between the ridges 30 can be used as an adhesive pool.

In the above embodiment, the draft in the small gradient portion is set to 0, but it does not have to be 0 and may be at least smaller than the large gradient portion.

1 Reel seat body 2 Rod insertion hole 2a Center line 3 Parting line 10 Male thread part 11 Hood part 12 Grip mounting part 20 Peripheral surface part 21 Flat part 30 Protrusion 30a Protrusion end surface 30b Side 50a Outer surface surface of rod body 101 Reel seat body 102 Rod insertion hole 103 Parting line 150 Rod body

Claims (6)

It is an injection-molded product, and is a reel sheet body having a rod insertion hole into which the rod body is inserted.
The wall surface of the rod insertion hole, provided at intervals in the circumferential direction, draft is relatively rather large, the center and the cross section arcuate plurality of large gradient portion center line of the rod insertion hole, a large gradient It has a plurality of small slope portions provided between the portions and having a relatively small draft so that the gap between the rod main body and the rod body is smaller than that of the large slope portion at the end of the rod insertion hole. It is, reel seat body of the reel seat. The reel seat body of the reel seat according to claim 1, wherein the draft of the small slope portion is 0. The reel sheet main body of the reel sheet according to claim 1 or 2, wherein the small gradient portion has a flat surface portion that connects side edge portions of adjacent large gradient portions with a straight line in a cross-sectional view . The reel seat body of the reel seat according to claim 1 or 2, wherein the small slope portion has a ridge extending along the axial direction on the wall surface of the rod insertion hole . A reel seat including the reel seat body according to any one of claims 1 to 4. A fishing rod provided with the reel sheet according to claim 5.

Images