JP6604841B2 - Floating fishing line guide, method for manufacturing the fishing line guide, and fishing rod equipped with the fishing line guide - Google Patents

Description

  The present invention relates to a floating fishing line guide that is movable in the longitudinal direction of a rod, a method for manufacturing the fishing line guide, and a fishing rod provided with the fishing line guide.

  The fishing rod includes an elongated rod and a fishing line guide that is attached to the rod and guides the fishing line from the reel to the tip of the rod. There are two types of fishing line guides: a fixed type that is fixed to the outer surface of the frame by bonding or the like, and a floating type that is freely fitted in the frame. A floating type fishing line guide that is freely slidably fitted into the frame may be simply referred to as a floating guide.

  Conventional floating guides are disclosed in, for example, Japanese Patent Application Laid-Open Nos. 2011-010578, 2011-010577, 2010-104264, 2004-187579, 2004-000273, and Japanese Patent Application Laid-Open No. 2004-000273. It is disclosed in Japanese Patent Application Publication No. 2003-284455, Japanese Patent Application Publication No. 2003-274809, and Japanese Patent Application Publication No. 2003-043771.

  As described in these publicly known documents, a conventional general idle guide includes a hard guide ring and a resin guide main body for holding the guide ring. The guide main body includes a cylindrical mounting portion through which the housing is inserted, a ring holding portion in which a through hole is formed continuously into the mounting portion to fit the guide ring, and the mounting portion and the ring holding portion. And a plate-like frame to be connected. The floating guide is loosely fitted into the rod body via the mounting portion when not used when carrying the fishing rod. When the fishing rod is used, the loosely-fitted loose guide is moved to the hand side along the rod. Since the housing is formed so that the hand side is thick, when the floating guide is moved to a predetermined mounting position of the housing, the mounting portion of the floating guide can be tightly fitted to the housing. As described above, the floating guide is attached to the casing so as to be freely movable in the longitudinal direction of the casing, and is tightly fitted to a predetermined position of the casing when in use.

  The guide body of the floating guide is often molded from a hard resin. As disclosed in JP-A-60-196134, it has also been proposed to injection-mold a fixed fishing line guide using a fiber reinforced resin.

JP 2011-010578 A JP 2011-010577 A JP 2010-104264 A JP 2004-187579 A JP 20040002273 A JP 2003-284455 A JP 2003-274809 A JP 2003-043771 A JP 60-196134 A

  A mold for injection-molding the guide body of the floating guide includes an upper mold and a lower mold, and the upper mold and the lower mold are formed with molding surfaces for molding the ring holding portion and the mounting portion, respectively. . A cavity is formed by clamping the upper mold and the lower mold, and a guide body is formed by injecting fluid resin into the cavity through a gate. The position of the gate is determined so that the gate cut mark is not conspicuous in the molded body so as not to impair the beauty of the finished product. From this point of view, in the fishing line guide, it is considered that the gate cut trace is desirably disposed on the inner peripheral surface of the ring holding portion or the lower portion of the outer peripheral surface of the ring holding portion. The inner peripheral surface of the ring holding portion and the lower portion of the outer peripheral surface of the ring holding portion are originally in a position that is difficult to visually recognize. Moreover, since the inner peripheral surface is cut in order to adjust the diameter of the through hole of the ring holding portion, the gate cut trace is less noticeable.

  Thus, in order to arrange the gate cut mark on the ring holding portion, it is necessary to adjust the position of the gate of the molding die. Specifically, the gate of the molding die is provided so as to communicate with a portion of the molding surface of the die that molds the inner peripheral surface or the outer peripheral surface of the ring holding portion. Also in the cited document 9, the fluid resin injection gate (the resin injection port 13 in the cited document 9) is provided so as to communicate with the molding surface for molding the lower part of the outer peripheral surface of the ring holding portion.

  However, if a gate is provided so as to communicate with a portion of the molding surface of the mold that forms the ring holding portion, a weld line is generated near the lower end of the mounting portion in the molded guide body. This is because the molding die is provided with a projection for molding the through hole of the mounting portion, and the floating resin injected from the gate hits the projection and is divided into two hands, and the fluid resin divided into the two hands is the projection. This is because they merge on the opposite side (that is, the position corresponding to the lower end of the mounting portion). Since the strength of the portion where the weld line appears is reduced, the strength of the mounting portion tends to be low in the guide body formed by conventional resin molding. When the floating guide is fitted into the housing, a large stress acts on the mounting portion. Therefore, in the floating guide having a guide body formed by conventional resin molding, the mounting portion is inserted when the housing is fitted into a predetermined position. There is a problem that is easily destroyed.

  One of the objects of the present invention is to prevent a weld line from being arranged at the mounting portion in an idle guide having a guide body formed by injection molding. Other objects of the present invention will become apparent by referring to the entire specification.

  One Embodiment of this invention is related with the floating type fishing line guide provided in a rod body so that a free movement is possible in the longitudinal direction. The fishing line guide is a floating fishing line guide provided in the casing so as to be freely movable in the longitudinal direction of the casing, a guide ring through which the fishing line is inserted, and a resin guide body that holds the guide ring; . The guide main body includes a ring holding portion in which a first through hole to which the guide ring is attached and an attachment portion in which a second through hole into which the housing can be inserted is formed.

  In an embodiment of the present invention, the guide body is formed as an integral single member by injection molding. That is, the guide main body in one embodiment is an injection molded product. In one embodiment of the present invention, the guide body is obtained by injection molding a fiber reinforced resin material. That is, the guide main body in one embodiment consists of fiber reinforced resin.

  In the fishing line guide according to one embodiment of the present invention, the weld line is not disposed on the attachment portion but is disposed on the ring holding portion. Such a weld line arrangement can be realized by communicating a gate with a portion of the molding surface of the mold where the mounting portion is molded when the guide body is molded by injection molding. Since the fluid resin injected from the gate arranged in this way hits the projection for forming the through hole of the mounting portion, it splits into two hands, and the fluid resin divided into two hands collides in the vicinity of the ring holding portion, The weld line is not disposed on the attachment portion but is disposed on the ring holding portion.

  The fishing line guide according to an embodiment of the present invention is formed so that a weld line is not arranged at the lower portion of the attachment portion. Such a weld line arrangement can be realized by connecting a gate to a portion of the molding surface of the mold where the lower part of the mounting portion is molded, when the guide body is molded by injection molding. it can.

  In the fishing line guide according to the embodiment of the present invention, since the weld line is not arranged in the attachment portion, it is possible to prevent the strength of the attachment portion from being lowered. In this case, there is a possibility that the strength of the ring holding part is lowered by the weld line arranged in the ring holding part, but according to the inventor's investigation, the stress acting on the ring holding part is the stress acting on the mounting part. If the strength of the ring holding portion is reduced by the weld line, the ring holding portion is not broken. Specifically, the largest stress acts on the ring holding portion when the guide ring is fitted into the through hole. The inner peripheral surface of the through hole has an inner diameter that matches the outer diameter of the guide ring. Therefore, a large stress does not act on the ring holding portion when the guide ring is fitted.

  One embodiment of the present invention relates to a method of manufacturing a floating fishing line guide that is provided on a housing so as to be freely movable in the longitudinal direction thereof. In one embodiment of the present invention, the method includes a ring holding portion in which a first through hole to which a guide ring is attached and an attachment portion in which a second through hole into which the housing can be inserted are formed. Forming a guide main body having injection molding, and attaching the guide ring to the first through hole. The guide body may be formed such that a weld line is disposed on the ring holding part. According to this method, it is possible to manufacture a fishing line guide in which a weld line is not arranged on the attachment portion.

  The method according to another embodiment of the present invention includes a step of forming a resin molded body having a first through-hole to which a guide ring is attached by injection molding, and a second capable of inserting the housing into the resin molded body. Forming a through hole and attaching a guide ring through which the fishing line is inserted into the first through hole. A method according to still another embodiment of the present invention includes a step of forming a resin molded body by injection molding, a first through hole in which a guide ring is attached to the resin molded body, and a second through which the housing can be inserted. Forming a through hole and attaching a guide ring through which the fishing line is inserted into the first through hole. The first through hole and the second through hole may be formed by cutting the resin molded body with a drill. According to the method, since the second through hole penetrating the mounting portion is not formed in the resin molded product obtained by injection molding, the region around the second through hole (completed) of the resin molded product. In the fishing line guide of the product, no weld line is generated in the area corresponding to the mounting portion. Thereby, it is possible to manufacture a fishing line guide in which a weld line is not arranged in the attachment portion.

  According to various embodiments of the present invention, in an idle guide having a guide body formed by injection molding, it is possible to prevent a weld line from occurring at an end portion of the attachment portion that is far from the guide holding portion.

The side view which shows the structure of the fishing rod which concerns on one Embodiment of this invention. The front view of the fishing line guide which concerns on one Embodiment of this invention Side view of the fishing line guide shown in FIG. The figure which shows typically the metal mold | die for shape | molding the guide main body of the fishing line guide shown in FIG. The figure which shows typically resin which flows within the metal mold | die shown in FIG. The front view of the resin molding which concerns on one Embodiment of this invention The front view of the resin molding which concerns on one Embodiment of this invention

  Hereinafter, various embodiments of the present invention will be described with reference to the drawings as appropriate. The common components are denoted by the same reference numerals across the drawings. It should be noted that the drawings are not necessarily shown to scale for convenience.

  FIG. 1 is an external view of a fishing rod 1 according to an embodiment of the present invention including a fishing line guide 10 according to an embodiment of the present invention. In the illustrated embodiment, the fishing rod 1 is a swing-out type fishing rod having a hand rod 3, a plurality of (three in the example of FIG. 1) medium rods 5, and a tip rod 7. When the fishing rod 1 is not used, the middle rod 5 and the tip rod 7 are stored in the hollow hand rod 3.

  The hand kite 3, the middle kite 5 and the tip kite 7 can be formed using, for example, a prepreg sheet in which a carbon fiber is impregnated with a synthetic resin. In addition, the hand collar 3, the middle collar 5, and the tip collar 7 each have a tapered shape that tapers in the tip direction. The fishing rod 1 is merely an example, and the fishing line guide of the present invention can be used with any fishing rod in which a floating fishing line guide is used.

  A plurality of fishing line guides 10 for guiding the fishing line fed from the reel R to the tip of the fishing rod 1 are provided on the outer peripheral surfaces of the middle rod 5 and the tip rod 7. The fishing line guide 10 is a floating fishing line guide. When the rod bodies 5 and 7 (the middle rod 5 and the tip rod 7) are stored in the hand rod 3, the floating fishing line guide 10 is moved to the end portion on the tip side of the rod body.

  FIG. 2 is a front view of the fishing line guide 10 according to an embodiment, and FIG. 3 is a side view of the fishing line guide 10. In the front-rear direction shown in FIG. 3, FIG. 2 shows a view of the fishing line guide 10 viewed from the rear side (the hand side when the fishing line guide 10 is attached to the housing). 2 and 3, the casings 5 and 7 are omitted.

  As shown in the figure, the fishing line guide 10 includes a guide main body 11 and an annular guide ring 12 attached to the guide main body 11. The guide main body 11 includes a substantially annular ring holding portion 13 for holding the guide ring 12, a cylindrical attachment portion 14, and a frame 16 that connects the ring holding portion 13 and the attachment portion 14. . As shown in the figure, a through hole 15 (also referred to as a guide hole 15) is formed in the ring holding portion 13. The guide hole 15 is defined by the inner peripheral surface 13 c of the ring holding portion 13. A through-hole 18 extending along the axial direction (front-rear direction) of the casings 5 and 7 is formed in the attachment portion 14. The through hole 18 is defined by the inner peripheral surface 14 c of the attachment portion 14. The casings 5 and 7 are inserted into the through hole 18.

  The frame 16 is generally formed in a plate shape, and extends from the upper portion of the attachment portion 14 generally upward. In the illustrated example, the frame 16 has a rear surface 16b extending from the mounting portion 14 in a direction slightly inclined toward the front (tip side), while its front surface 16a is perpendicular to the axial direction of the housing from the mounting portion 14. Stretched in any direction. The frame 16 may be configured such that the entire frame 16 extends in a direction perpendicular to the axial direction of the housing.

  The guide ring 12 is formed of a hard material such as titanium, aluminum, SUS, or ceramics so that the guide ring 12 is not easily worn and the frictional force with respect to the fishing line that slides inward is reduced.

  As described above, the through hole 18 is formed in the attachment portion 14, and the casings 5 and 7 are passed through the through hole 18. The through hole 18 of the attachment portion 14 has a tapered shape that tapers in the tip direction. The through hole 18 is processed to have a predetermined taper by using a tool such as a taper reamer, for example. In this way, the through hole 18 has a tapered shape, whereby the fishing line guide 10 is located at a specific position in the longitudinal direction of the housings 5 and 7, and the inner peripheral surface of the mounting portion 14 is the housing 5 or 7. It is fixed at a position where it comes into contact with the outer peripheral surface. That is, in each of the plurality of fishing line guides 10 according to the embodiment, the inner diameter (the inner diameter of the mounting portion 14 is adjusted so as to conform to the outer diameter and the tapered shape of the casings 5 and 7 at specific positions in a predetermined longitudinal direction. The diameter of the through hole 18) and the tapered shape of the through hole 18 are set. A plurality of ridges (not shown) extending along the axial direction of the fishing line guide 10 (longitudinal direction of the rod bodies 5 and 7) are formed on the inner peripheral surface 14 c that defines the through hole 18 of the attachment portion 14. Also good. Such protrusions can prevent the fishing line guide 10 from inadvertently rotating in the circumferential direction of the housings 5 and 7.

  In one embodiment of the present invention, the guide body 11 is injection-molded as an integral single member with resin. The resin forming the guide body 11 is, for example, a fiber reinforced resin in which a large number of reinforcing fibers are impregnated with a matrix resin. In one embodiment of the present invention, the fiber reinforced resin used may be obtained by impregnating a reinforced fiber such as carbon fiber with a matrix resin such as polyamide resin, polyester resin, polyphenylene ether, polyacetal, or polycarbonate. . Each of the reinforcing fibers may be a so-called short fiber having a relatively short fiber length, for example, an average fiber length in the range of 0.5 to 10 mm. By forming the attachment portion 14 and the frame 16 of the fishing line guide 10 using a fiber reinforced resin containing short fibers, the fishing line guide 10 has a fiber reinforced resin containing long fibers whose average fiber length is longer than 10 mm. Bending rigidity is smaller than when molded with. As a result, the fishing line guide 10 according to various embodiments of the present invention can easily ensure followability to the bending of the fishing rod 1. Each of the reinforcing fibers has, for example, a substantially cylindrical shape, an average fiber diameter in the range of 3 to 15 μm, and an average fiber length in the range of 0.5 to 10 mm. Moreover, in one Embodiment, content of the reinforced fiber in fiber reinforced resin exists in the range of 10-60 mass% with respect to matrix resin, for example. The shape, size, content, and the like of the reinforcing fiber disclosed herein are examples, and these characteristics of the reinforcing fiber in the embodiment of the present invention are not limited to those exemplified here.

  FIG. 4 schematically shows a cross-sectional view of a molding die used for molding the guide main body 11. The illustrated mold includes an upper mold 20 and a lower mold 30 each having a molding surface for molding the guide body 11. The upper mold 20 and the lower mold 30 are arranged so as to be movable in the axial direction with respect to each other. For example, the lower mold 30 is a fixed mold, and the upper mold 20 is a movable mold that can move in the axial direction with respect to the lower mold 30.

  The upper mold 20 includes a molding surface 21 that molds the front portion of the outer peripheral surface 14 d of the mounting portion 14, a molding surface 22 that molds the front portion of the outer peripheral surface 13 d of the ring holding portion 13, and the front surface of the frame 16. It has a molding surface 23 for molding 16a, a molding surface 24 for molding the front end surface 14a of the mounting portion 14, and a molding surface 25 for molding the front end surface 13a of the ring holding portion 13.

  The lower mold 30 includes a molding surface 31 that molds the rear portion of the outer peripheral surface 14 d of the mounting portion 14, a molding surface 32 that molds the rear portion of the outer peripheral surface 13 d of the ring holding portion 13, and the frame 16. A molding surface 33 for molding the rear surface 16b, a molding surface 34 for molding the rear end surface 14b of the mounting portion 14, a molding surface 35 for molding the rear end surface 13b of the ring holding portion 13, and a direction from the molding surface 34 to the upper mold 20 And a cylindrical projection 36 protruding in the direction of the upper mold 20 from the molding surface 33 and the molding surface 35.

  By clamping the upper mold 20 and the lower mold 30, a cavity 40 is formed between the upper mold 20 and the lower mold 30. The lower mold 30 is provided with a gate 38 so as to communicate with the molding surface 31. The position of the illustrated gate 38 is merely an example, and can be appropriately changed as long as the weld line does not appear below the attachment portion 14.

  The resin material is injected from the gate 38 into the cavity 40 in a state where the mold is clamped. As indicated by arrows in FIG. 5, the fluid resin injected from the gate 38 is formed on the right side of the paper along the molding surface 21 and the molding surface 31 and the molding surface 24 and the molding surface 34 so as to go around the protrusion 36. 23 and the molding surface 33 flow. The resin then flows along the molding surface 23 and the molding surface 33, and further flows along the molding surface 22, the molding surface 32, the molding surface 25, and the molding surface 35 so as to surround the protrusion 37. As the injection amount of the resin increases, the injected resin reaches the upper mold 20 as well.

  In this way, the resin that has been divided into two in contact with the protrusion 37 joins at a position on the opposite side of the protrusion 37 from the gate 38 (a position corresponding to the upper end of the ring holding portion 13). A weld line WL1 is generated at a position where the resin joins. Therefore, the weld line WL1 is arranged near the upper end of the ring holding portion 13 of the guide body. Further, the resin that has been divided into two in contact with the protrusion 36 may also merge on the molding surface 33, and a weld line WL <b> 2 may be generated near the center in the left-right direction of the frame 16.

  The fishing line guide 10 shown in FIG. 2 is obtained by attaching the guide ring to the inner peripheral surface 13c of the guide holding portion 13 of the guide body 11 obtained in this way.

  In the above-described fishing line guide 10, since the weld line is not arranged on the attachment portion 14, the strength of the attachment portion 14 can be prevented from being reduced. Note that even if a weld line is disposed on the upper portion of the attachment portion 14 (a portion of the attachment portion 14 above the virtual line A1 in FIG. 2 (a virtual line extending through the center of the through hole 18 to the left and right)). I do not care. This is because the frame 16 is connected to the upper portion of the attachment portion 14 even if the strength of the upper portion of the attachment portion 14 is reduced by the weld line, and the upper portion of the attachment portion 14 is reinforced by the frame 16. That is, in one embodiment of the present invention, the weld line may not be arranged below the attachment portion 14 (a portion of the attachment portion 14 below the imaginary line A1).

  There is a possibility that the strength of the ring holding part is lowered by the weld line WL1 arranged in the ring holding part 13, and there is a possibility that the strength of the frame 16 is lowered by the weld line WL2 arranged in the frame 16, but the fishing line guide 10 Since a large stress does not act on the ring holding portion 13 and the frame 16 during the fixing to the fishing rod or during actual fishing, such a decrease in strength is not a problem in practice.

  Next, a method for manufacturing a fishing line guide according to another embodiment of the present invention will be described. The fishing line guide in the embodiment is manufactured by molding an intermediate molded body that does not have the through-holes 18 by injection molding a resin, and forms the through-holes 18 by cutting the intermediate molded body.

  FIG. 6 is a view showing the intermediate molded body 100 in one embodiment of the present invention. As illustrated, the intermediate molded body 100 is molded as a single member from a resin material in the same manner as the guide body 11 of the above-described embodiment. The intermediate molded body 100 includes an annular guide ring holding portion 113 in which a through hole 115 into which a guide ring is fitted is formed, an attachment portion 114, and a frame 116 that connects the ring holding portion 113 and the attachment portion 114. Prepare. The intermediate molded body 100 is different from the guide main body 11 in that a through hole is not formed in the attachment portion 114. That is, the mounting portion 114 is formed in a solid columnar shape unlike the cylindrical mounting portion 14.

  The intermediate molded body 100 can be formed in the same size as the guide main body 11 by the same method as the guide main body 11 except that the through hole is not formed in the attachment portion 114. Specifically, the intermediate molded body 100 is molded as an integral single member by injection molding a resin using a molding die. Since the through hole is not formed in the attachment portion 114 in the intermediate molded body 100, no weld line is generated around the attachment portion 114 during injection molding.

  By cutting the intermediate molded body 100 obtained by injection molding in this way, a through-hole through which the casings 5 and 7 are inserted is formed. Specifically, a through hole extending in the front-rear direction of the intermediate molded body 100 is formed in the attachment portion 114 of the intermediate molded body 100. This cutting process can be performed using a known drill. The fishing line guide 10 shown in FIG. 2 is obtained by attaching the guide ring to the molded body in which the through holes are formed in this manner.

  Next, a method for manufacturing a fishing line guide according to still another embodiment of the present invention will be described. The fishing line guide in this embodiment forms an intermediate molded body that does not have both the through hole 15 and the through hole 18 by injection molding resin, and cuts the intermediate molded body to form the through hole 15 and the through hole 18. Manufactured by forming.

  FIG. 7 is a view showing an intermediate molded body 200 in one embodiment of the present invention. As illustrated, the intermediate molded body 200 is molded as a single member from a resin material in the same manner as the intermediate molded body 100 described above. The intermediate molded body 200 includes an annular guide ring holding portion 213, an attachment portion 214, and a frame 216 that connects the ring holding portion 213 and the attachment portion 214. The intermediate molded body 200 is different from the intermediate molded body 100 in that no through hole is formed in the ring holding portion 113.

  The intermediate molded body 200 can be formed in the same size as the intermediate molded body 100 by the same method as the intermediate molded body 100 except that the through hole is not formed in the ring holding portion 213. Specifically, the intermediate molded body 200 is molded as an integral single member by injection molding a resin using a molding die. Since no through hole is formed in the attachment portion 214 even in the intermediate molded body 200, a weld line does not occur around the attachment portion 214 during injection molding.

  By cutting the intermediate molded body 200 obtained by injection molding in this way, a through hole for holding the guide ring is formed in the ring holding portion 213, and the casings 5 and 7 are inserted into the mounting portion 214. Through-holes can be formed. This cutting process can be performed using a known drill. The fishing line guide 10 shown in FIG. 2 is obtained by attaching the guide ring to the molded body in which the through holes are formed in this manner.

  The embodiment of the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the scope of the invention. For example, the number, position, shape, and the like of the fishing line guide 10 provided in the fishing rod 1 are not limited to the above-described embodiment.

DESCRIPTION OF SYMBOLS 1 Fishing rod 3 Hand rod 5 Medium rod 7 Point rod 10 Fishing line guide 12 Guide ring 13 Ring holding portion 14 Mounting portion 15 Through hole (guide hole)
16 Frame 18 Through-hole 100 Intermediate molded body

Claims (3)

A method of manufacturing a floating fishing line guide that is provided in a rod body so as to be freely movable in its longitudinal direction,
Forming a resin molded body having a first through-hole to which a guide ring is attached by injection molding of a fiber reinforced resin containing carbon fibers;
Forming a second through-hole through which the housing can be inserted into the resin molded body;
Attaching a guide ring through which a fishing line is inserted into the first through hole;
A method comprising: The second through-holes are formed by cutting the resin-molded body with a drill, wherein
Item 2. The method according to Item 1 . The method according to claim 1 or 2 , wherein an average fiber length of the carbon fibers is in a range of 0.5 to 10 mm.

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