JP3190126U - Fishing tackle weight and carp - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a weight for fishing gear capable of firmly and easily fixing a line protection tube to a weight body. A weight 1A includes a tungsten weight body 2 and a line protection tube 6 into which a line is inserted. The tube 6 is made of fluororesin and is inserted into a through hole 3 provided so as to penetrate the weight body 2. Further, the tube 6 is fixed to the through hole 3 by pressure contacting the inner peripheral surface 3a of the through hole 3 with the elastic restoring force of the tube 6. [Selection diagram] Fig. 3

Description

  The present invention relates to a fishing tackle weight used as a head of a shark turnip and the like, and a shark turnip.

  There are various types of weights used for fishing gear, and one of them is a through weight. This weight is attached to the line by passing the line through a through-hole provided through the weight (see, for example, Patent Documents 1 to 4). There is an advantage that the entanglement can be reduced and the hit is directly transmitted to the rod.

  Further, as a weight, a tungsten weight manufactured using tungsten having a specific gravity larger than that of lead as a material is known. Tungsten weights have advantages such as less water resistance and faster bottoming than lead weights, light pulling resistance, and clear bottoming, and are particularly suitable for use as a head of a kite turnip.

Registered Utility Model No. 3171729 Japanese Patent No. 4792019 Japanese Patent No. 4550497 Registered Utility Model No. 3186653

  However, when a tungsten weight is used as an intermediate weight, since tungsten has a high hardness, the line passed through the through hole of the weight is severely damaged by sliding contact with the inner peripheral surface of the through hole.

  Therefore, instead of directly passing the line through the through hole of the weight, a line protection tube is inserted into the through hole of the weight and the line is passed through the tube so that the line is slid with the inner peripheral surface of the through hole. It is conceivable to protect against contact damage.

  However, when a tube made of silicone resin, for example, is used as the line protection tube, the strength of the silicone resin is relatively weak, so that the tube is easily damaged by sliding contact with the line or pressing from the line. In addition, it is difficult to prevent damage to the line under an environment where high water pressure is applied, such as a place deeper than a water depth of 10 m. In addition, since the inner peripheral surface of the silicone resin tube generally has a large coefficient of friction, the line slip was not very good.

  Therefore, the present inventor considered using a fluororesin instead of a silicone resin as a material for the line protection tube. The reason is that a fluororesin tube generally has higher strength and a smaller coefficient of friction than a silicone resin tube, and can eliminate the above-mentioned difficulties caused by a silicone resin tube.

  However, since the fluororesin tube is slippery due to its small friction coefficient, even if the tube is inserted into the through hole of the weight, the tube slides on the inner peripheral surface of the through hole and is easily pulled out from the through hole. Since the fluororesin cannot be firmly bonded to tungsten with an adhesive, it is difficult to fix the tube to the through hole of the weight.

  The present invention has been made in view of the above-described technical background, and an object thereof is to provide a fishing tackle weight capable of firmly and easily fixing a line protection tube to a tungsten weight body. .

  The present invention provides the following means.

[1] A fluororesin line protection tube through which a line passes is inserted through a through hole provided through the tungsten weight body,
The fishing tackle weight according to claim 1, wherein the tube is fixed to the through hole by being pressed against the inner peripheral surface of the through hole by an elastic restoring force of the tube.

[2] At least one protrusion is integrally formed on the inner peripheral surface of the through hole, and the diameter of the through hole is locally reduced at the position of the protrusion.
2. The fishing tackle weight according to claim 1, wherein the tube is in pressure contact with at least the protrusion on the inner peripheral surface of the through hole.

[3] The cross-sectional shape of the protrusion is a mountain shape,
3. The fishing tackle weight according to claim 2, wherein the tip of the protrusion bites into the outer peripheral surface of the tube when the tube is in pressure contact with at least the protrusion on the inner peripheral surface of the through hole.

  [4] The fishing tackle weight according to item 2, wherein a boundary portion between the inner peripheral surface of the through hole and the protrusion is formed in a tapered shape.

[5] At least a part of the length direction of the through hole on the inner peripheral surface of the through hole is formed in a tapered shape,
5. The fishing tackle weight according to any one of the preceding items 1 to 4, wherein the tube is in pressure contact with at least a tapered portion of an inner peripheral surface of the through hole.

[6] The tube is inserted into the through-hole with the end of the tube protruding in the length direction of the through-hole from at least one of the open ends in the length direction of the through-hole. And
At least a part in the circumferential direction of the opening edge part on the at least one opening end side of the inner peripheral surface of the through hole is angular, and the cross-sectional angle of the at least part of the opening edge part is set to an acute angle. ,
The fishing tackle weight according to any one of the preceding items 1 to 5, wherein the tube is in pressure contact with the at least part of the opening edge.

  [7] The fishing tackle weight according to any one of [1] to [6], wherein the tube is fixed to the through hole so as to be extractable.

  [8] The fishing tackle weight according to any one of [1] to [7], wherein the tube is made of polytetrafluoroethylene as a fluororesin.

  [9] The fishing tackle weight according to any one of the preceding items 1 to 8, which is used as a head of a shark turnip.

  [10] A fishing tackle turnip for a fishing tackle, wherein the weight according to any one of items 1 to 9 is used as a head.

  The present invention has the following effects.

  The fishing tackle weight described in [1] above is used by passing a line through a tube inserted into the through hole of the weight main body. Therefore, this weight is a kind of penetrating weight. However, it has advantages such as that Harris can be shortened, entanglement of the device can be reduced, and Atari is directly transmitted to the rod.

  Furthermore, since the weight body is made of tungsten, it has advantages such as lower water resistance, faster bottoming (faster sedimentation speed), lower pulling resistance, and clear bottoming than lead weights. Have.

  Furthermore, since the line is passed through the line protection tube, even if the weight body is made of tungsten, the line can be protected from damage due to sliding contact with the inner peripheral surface of the through hole of the weight body. .

  Furthermore, since the tube is made of a fluororesin, it has the advantages that it is stronger and less likely to break than a tube made of silicone resin, and that the inner peripheral surface of the tube is slippery, so that the line slips well.

  In addition, since the tube is fixed to the through hole by being pressed against the inner peripheral surface of the through hole of the weight body by the elastic restoring force of the tube, the tube is firmly and easily fixed to the through hole. can do.

  According to the previous item [2], since the tube is in pressure contact with at least the protrusion on the inner peripheral surface of the through hole of the weight body, the fixing strength of the tube with respect to the through hole can be further increased.

  According to the preceding item [3], the cross-sectional shape of the protrusion is a cross-sectional shape, and the tip of the protrusion bites into the outer peripheral surface of the tube. Here, since the weight body is made of tungsten, the tip of the protrusion is very hard compared to lead. For this reason, the tip end portion of the protrusion bites into the outer peripheral surface of the tube firmly, whereby the fixing strength of the tube can be further increased.

  Furthermore, since the cross-sectional shape of the protrusion is mountain-shaped, it is easy for the tube to get over the protrusion when the tube is press-fitted into the through-hole, so that the tube can be inserted into the through-hole (that is, the weight of the tube). Can be easily attached to the main body.

  According to the previous item [4], since the boundary portion with the projection on the inner peripheral surface of the through hole of the weight body is formed in a taper shape, the tube gets over the projection when the tube is press-fitted into the through hole. Thus, the tube can be easily inserted into the through hole (that is, the tube is attached to the weight body).

  According to the previous item [5], since the tube is pressed against at least the tapered portion of the inner peripheral surface of the through hole of the weight body, the tube can be firmly fixed by at least the tapered portion of the inner peripheral surface of the through hole. Of course, the tube can be easily inserted into the through hole (that is, the tube is attached to the weight body).

  According to the preceding item [6], since the tube is in pressure contact with at least a part of the opening edge of the through hole of the weight body, at least a part of the opening edge of the through hole of the weight body is on the outer peripheral surface of the tube. Bite. Here, since the weight body is made of tungsten, the at least part of the opening edge is very hard compared to lead. Therefore, the at least part of the opening edge bites into the outer peripheral surface of the tube firmly, whereby the fixing strength of the tube can be further increased.

  According to the previous item [7], since the tube can be extracted from the through hole of the weight body, the tube can be detached from the weight body when the tube or the weight body is replaced with a new one.

  According to the preceding item [8], when the tube is made of polytetrafluoroethylene, the effects described in at least one of the above [1] to [7] can be surely exhibited.

  According to the previous item [9], since the tube is firmly fixed to the through hole of the weight main body, the tube is attached to the through hole of the weight main body even in the case of a shark turnip used in a harsh underwater environment. The inserted state can be maintained, and the shape and state of the eyelids can be favorably maintained for a long time.

  According to the cocoon turnip described in [10], the same effect as [9] can be obtained.

FIG. 1A is a side view of a shark turnip using a fishing tackle weight as a head according to a first embodiment of the present invention. FIG. 1B is a side view of the heel turnip showing the same weight moved along the line. FIG. 1C is a side view of the heel turnip showing a state in which the same weight further moves along the line. FIG. 2A is a plan view of the same weight. FIG. 2B is a longitudinal sectional view showing a state before the line protection tube is inserted through the through hole of the weight body. FIG. 3 is a longitudinal sectional view of the same weight. FIG. 4 is a longitudinal sectional view of a weight according to a second embodiment of the present invention. FIG. 5 is a longitudinal sectional view of a weight according to a third embodiment of the present invention. FIG. 6 is a longitudinal sectional view of a weight according to a fourth embodiment of the present invention. FIG. 7 is a longitudinal sectional view of a weight according to a fifth embodiment of the present invention. FIG. 8 is a longitudinal sectional view of a weight according to a sixth embodiment of the present invention. FIG. 9 is a longitudinal sectional view of a weight according to a seventh embodiment of the present invention. FIG. 10 is a longitudinal sectional view of a weight according to an eighth embodiment of the present invention.

  Next, several embodiments of the present invention will be described below with reference to the drawings.

  In FIG. 1A, 10 is a shark turnip which is a kind of lure of fishing gear. The fishing tackle weight 1 </ b> A according to the first embodiment of the present invention is used as the head 11 of the rod turnip 10.

  The beakable turnip 10 includes a hook portion 12 in addition to the head 11. The hook portion 12 has a fishing hook 12a, a tie 12b, a skirt 12c, and the like. Note that the shark turnip 10 is also called a shark mule.

  The weight 1 </ b> A includes a weight body 2 and a line protection tube 6. The weight body 2 is made of tungsten, and is formed in a substantially flat spherical shape as shown in FIGS. 1A and 2A. Further, the weight body 2 is a so-called hollow weight, and as shown in FIG. 3, a circular through-hole having a circular cross section that penetrates the weight body 2 obliquely with respect to the horizontal direction on the upper side of the weight body 2. 3 is provided.

  The length of the line protection tube 6 is set larger than the length of the through hole 3 of the weight body 2. Then, the tube 6 is inserted into the through hole 3 of the weight body 2 with both end portions of the tube 6 protruding in the length direction of the through hole 3 from both opening ends in the length direction of the through hole 3. ing. The tube 6 has a circular cross section.

  1A to 1C, the line 13 is passed through the inner side 6c of the tube 6, and the hook portion 12 of the cocoon turnip 10 is attached to the end of the line 13, whereby the heel turnip 10 is configured. Has been. Therefore, according to the heel cab 10 of this embodiment, as shown in FIGS. 1A to 1C, the weight 1 </ b> A (weight body 2) as the head 11 travels along the line 13 passed through the tube 6 to the hook portion 12. Can move.

  The tube 6 protects the line 13 from damage (including wear) due to sliding contact with the inner peripheral surface 3a of the through hole 3 of the weight body 2, and is made of a fluororesin. Therefore, the tube 6 is slightly elastic. In this embodiment, the tube 6 is made of polytetrafluoroethylene (PTFE), which is a kind of fluororesin, in detail.

  In a state before the tube 6 is inserted into the through hole 3 of the weight body 2, the outer diameter of the tube 6 is set constant in the length direction of the tube 6 as shown in FIG. The diameter is set to be larger than 3. The tube 6 is inserted into the through hole 3 by press-fitting from one opening end thereof, so that the tube 6 is elastically restored to the entire inner peripheral surface 3a of the through hole 3 of the weight body 2 as shown in FIG. The tube 6 is fixed to the through hole 3 by pressure contact.

  Upper portions 3da and 3da as part of the circumferential direction in each of the opening edge portions 3d and 3d of the inner peripheral surface 3a of the through hole 3 of the weight body 2 are not chamfered and are angular, and the cross-sectional angle thereof is an acute angle (ie, 90 °). Less than °). The tube 6 is in pressure contact with the upper portions 3da and 3da of the opening edge portions 3d and 3d, so that the upper portions 3da and 3da of the opening edge portions 3d and 3d slightly bite into the outer peripheral surface 6a of the tube 6. .

  Furthermore, in this weight 1A, by pressing or pulling the tube 6 with a very strong force in the direction of extraction from the through hole 3 of the weight body 2, the pressure contact with the inner peripheral surface 3a of the tube 6 and the opening edge The tube 6 is fixed to the through-hole 3 so that the tube 6 can be forcibly extracted from the through-hole 3 against the biting of the upper part 3da into the tube outer peripheral surface 6a.

  The weight 1A of the first embodiment has the following advantages.

  Since the weight 1A of the first embodiment is a kind of so-called hollow weight, it is advantageous in that the fish can bite in, the Harris can be shortened, the entanglement of the mechanism can be reduced, and the atari is directly transmitted to the rod. Have

  Furthermore, since the weight body 2 is made of tungsten, the water resistance is smaller than that of a lead weight, the bottoming is fast (fast sedimentation speed), the pulling resistance is light, and the bottom is clear. Have

  Further, since the line 13 is passed through the line protection tube 6, even if the weight body 2 is made of tungsten, the line 13 is slidably contacted with the inner peripheral surface 3 a of the through hole 3 of the weight body 2. Can be protected from damage.

  Furthermore, since the tube 6 is made of a fluororesin, it is stronger and less likely to be damaged than a tube made of silicone resin, and the inner peripheral surface 6b of the tube 6 is easy to slip, so that there is an advantage that the line slips well. Furthermore, since the tube 6 is made of polytetrafluoroethylene, the sliding of the line 13 can be further improved.

  In addition, the tube 6 is fixed to the through-hole 3 by being pressed against the inner peripheral surface 3 a of the through-hole 3 of the weight body 2 by the elastic restoring force of the tube 6. On the other hand, it can be firmly and easily fixed.

  Furthermore, when the tube 6 is pressed against the upper portions 3da and 3da of the respective opening edge portions 3d and 3d of the through hole 3 of the weight body 2, the upper portions 3da and 3da of the respective opening edge portions 3d and 3d become the outer peripheral surface 6a of the tube 6. Have bite into. Here, since the weight main body 2 is made of tungsten, the upper portion 3da of the opening edge 3d is very hard compared to lead. For this reason, the upper part 3da of the opening edge 3d can bite into the outer peripheral surface 6a of the tube 6 firmly, whereby the fixing strength of the tube 6 can be further increased.

  Furthermore, since the tube 6 is fixed to the through hole 3 of the weight body 2 so as to be forcibly extracted, the tube 6 is removed from the weight body 2 when the tube 6 or the weight body 2 is replaced with a new one. Can be removed.

  Of course, since the tube 6 is firmly fixed to the through-hole 3 of the weight body 2, the tube 6 can be used as the through-hole 3 of the weight body 2 even in the case of the heel turnip 10 used in a harsh underwater environment. It is possible to maintain the state inserted through the heel, and to maintain the shape and state of the heel turnip 10 well over a long period of time.

  The present invention is not limited to the first embodiment, and various modifications can be made without departing from the spirit of the present invention. Several other embodiments of the present invention will be described below with a focus on differences from the first embodiment.

  FIG. 4 is a diagram for explaining a second embodiment of the present invention.

  In the weight 1 </ b> B of the second embodiment, the inner peripheral surface 3 a of the through hole 3 of the weight body 2 is formed in a tapered shape over the entire length of the through hole 3. The tube 6 is press-fitted into the through hole 3, and the tube 6 is pressed against the entire inner peripheral surface 3 a as the tapered portion 3 b of the inner peripheral surface 3 a of the through hole 3 by the elastic restoring force of the tube 6. Thereby, the tube 6 is fixed to the through hole 3.

  According to the weight 1B of the second embodiment, the entire inner peripheral surface 3a of the through hole 3 is tapered as well as the tube 6 can be firmly fixed to the entire inner peripheral surface 3a of the through hole 3 of the weight main body 2. The tube 6 is press-fitted into the through-hole 3 from the opening end on the large diameter side of the through-hole 3 so that the tube 6 can be easily inserted into the through-hole 3 (that is, the tube 6 is attached to the weight body 2). Can do.

  In the second embodiment, the inner peripheral surface 3a of the through hole 3 of the weight body 2 is formed in a tapered shape over the entire length direction of the through hole 3, but in the present invention, the through hole 3 is formed. Part of the length direction may be formed in a tapered shape (see an eighth embodiment described later).

  FIG. 5 is a diagram for explaining a third embodiment of the present invention.

  In the weight 1 </ b> C of the third embodiment, the protrusion 4 has an entire circumference in the circumferential direction of the inner peripheral surface 3 a at the end of the inner peripheral surface 3 a of the through hole 3 of the weight body 2 on the one opening end side. Thus, the diameter of the through hole 3 is locally reduced at the position of the protrusion 4.

  The cross-sectional shape of the protrusion 4 is substantially rectangular. The corner 4c located on the intermediate side in the length direction of the through hole 3 in the protrusion 4 is not chamfered and is angular.

  The tube 6 is press-fitted into the through-hole 3, and the tube 6 is pressed against the entire inner peripheral surface 3 a of the through-hole 3 by the elastic restoring force of the tube 6, whereby the tube 6 is fixed to the through-hole 3. Has been.

  Further, in this fixed state, the tube 6 is in strong pressure contact with the protrusion 4 by forming the protrusion 4 on the inner peripheral surface 3 a of the through hole 3 of the weight body 2. Thereby, the fixing strength of the tube 6 is further increased.

  FIG. 6 is a diagram for explaining a fourth embodiment of the present invention.

  In the weight 1D of the fourth embodiment, as in the third embodiment, the protrusion 4 is formed at the end of the through hole 3 on the one opening end side in the inner peripheral surface 3a of the through hole 3 of the weight body 2. It is integrally formed over the entire circumference in the circumferential direction of the peripheral surface 3a, whereby the diameter of the through hole 3 is locally reduced at the position of the protrusion 4.

  The cross-sectional shape of the protrusion 4 is a mountain shape (that is, a triangular shape), and the tip 4a of the protrusion 4 is not chamfered and is angular.

  The tube 6 is press-fitted into the through-hole 3, and the tube 6 is pressed against the entire inner peripheral surface 3 a of the through-hole 3 by the elastic restoring force of the tube 6, whereby the tube 6 is fixed to the through-hole 3. Has been.

  Further, in this fixed state, the tube 6 is strongly pressed against the protrusion 4 by forming the protrusion 4 on the inner peripheral surface 3a of the through hole 3 of the weight body 2, and the tip 4a of the protrusion 4 is It bites into the outer peripheral surface 6 a of the tube 6. Here, since the weight main body 2 is made of tungsten, the tip portion 4a of the protrusion 4 is very hard compared to lead. For this reason, the distal end portion 4a of the protrusion 4 bites into the outer peripheral surface 6a of the tube 6 firmly, whereby the fixing strength of the tube 6 is further increased.

  Furthermore, since the cross-sectional shape of the protrusion 4 is a mountain shape, the tube 6 can easily get over the protrusion 4 when the tube 6 is press-fitted into the through-hole 3, and thus the tube 6 can be passed through the through-hole 3. Can be easily inserted (that is, the tube 6 is attached to the weight body 2).

  FIG. 7 is a diagram for explaining a fifth embodiment of the present invention.

  In the weight 1E of the fifth embodiment, the protrusion 4 is located closer to the end than the intermediate position in the longitudinal direction of the through hole 3 on the inner peripheral surface 3a of the through hole 3 of the weight body 2 at the inner peripheral surface 3a. The diameter of the through hole 3 is locally reduced at the position of the projecting portion 4.

  The cross-sectional shape of the protrusion 4 is a mountain shape as in the fourth embodiment, and the tip 4a of the protrusion 4 is not chamfered and is angular.

  The tube 6 is press-fitted into the through-hole 3, and the tube 6 is pressed against the entire inner peripheral surface 3 a of the through-hole 3 by the elastic restoring force of the tube 6, whereby the tube 6 is fixed to the through-hole 3. Has been.

  Further, in this fixed state, the tube 6 is strongly pressed against the protrusion 4 by forming the protrusion 4 on the inner peripheral surface 3a of the through hole 3 of the weight body 2, and the same as in the fourth embodiment. The tip 4 a of the portion 4 bites into the outer peripheral surface 6 a of the tube 6 firmly. Thereby, the fixing strength of the tube 6 is further increased.

  FIG. 8 is a diagram for explaining a sixth embodiment of the present invention.

  In the weight 1F of the sixth embodiment, a plurality of projections 4 are locally formed integrally with the inner peripheral surface 3a of the through hole 3 of the weight body 2 so as to be separated in the length direction of the through hole 3, Thereby, the diameter of the through-hole 3 is locally reduced at each protrusion 4 position.

  The cross-sectional shape of each protrusion 4 is a mountain shape as in the fourth embodiment, and the tip 4a of each protrusion 4 is not chamfered and is angular.

  The tube 6 is press-fitted into the through-hole 3, and the tube 6 is pressed against the entire inner peripheral surface 3 a of the through-hole 3 by the elastic restoring force of the tube 6, whereby the tube 6 is fixed to the through-hole 3. Has been.

  Further, in this fixed state, the tube 6 is strongly pressed against each projection 4 by forming each projection 4 on the inner peripheral surface 3 a of the through hole 3 of the weight body 2, and the tip of each projection 4 The portion 4a bites into the outer peripheral surface 6a of the tube 6 firmly. Thereby, the fixing strength of the tube 6 is further increased.

  FIG. 9 is a diagram for explaining a seventh embodiment of the present invention.

  The weight 1G of the seventh embodiment has a structure including the characteristic structure of the weight 1B of the second embodiment (FIG. 4) and the characteristic structure of the weight 1E of the fifth embodiment (FIG. 7). .

  That is, in the weight 1 </ b> G of the seventh embodiment, the inner peripheral surface 3 a of the through hole 3 of the weight body 2 is formed in a tapered shape over the entire length direction of the through hole 3. Further, the protrusion 4 is locally located on the inner peripheral surface 3a of the through hole 3 at a position closer to the end than the intermediate position in the length direction of the through hole 3 over the entire circumference of the inner peripheral surface 3a. As a result, the diameter of the through hole 3 is locally reduced at the position of the protrusion 4.

  The cross-sectional shape of the protrusion 4 is a mountain shape, and the tip 4a of the protrusion 4 is not chamfered and is angular.

  The tube 6 is press-fitted into the through hole 3, and the tube 6 is pressed against the entire inner peripheral surface 3a of the inner peripheral surface 3a of the through hole 3 by the elastic restoring force of the tube 6, Thus, the tube 6 is fixed to the through hole 3.

  Further, in this fixed state, the tube 6 is strongly pressed against the protrusion 4 by forming the protrusion 4 on the inner peripheral surface 3a of the through hole 3 of the weight body 2, and the tip 4a of the protrusion 4 is It bites into the outer peripheral surface 6a of the tube 6 firmly. Thereby, the fixing strength of the tube 6 is further increased.

  FIG. 10 is a diagram for explaining an eighth embodiment of the present invention.

  In the weight 1H of the eighth embodiment, as in the third embodiment (FIG. 5), a protrusion is formed on the end of the through hole 3 on the inner peripheral surface 3a of the through hole 3 of the weight body 2 on the opening end side. 4 is integrally formed locally over the entire circumference in the circumferential direction of the inner peripheral surface 3a, whereby the diameter of the through hole 3 is locally reduced at the position of the protrusion 4.

  However, although the cross-sectional shape of the protrusion 4 is substantially rectangular, the corner portion located on the intermediate side in the length direction of the through-hole 3 in the protrusion 4 is chamfered, and thereby, the inner peripheral surface 3a A boundary portion with the projecting portion 4 is formed in a tapered shape that smoothly connects the inner peripheral surface 3a and the tip end surface of the projecting portion 4, and a tapered portion 4b is locally formed in the boundary portion.

  The tube 6 is press-fitted into the through-hole 3, and the tube 6 is pressed against the entire inner peripheral surface 3 a of the through-hole 3 by the elastic restoring force of the tube 6, whereby the tube 6 is fixed to the through-hole 3. Has been.

  Further, in this fixed state, the tube 6 is in strong pressure contact with the protrusion 4 by forming the protrusion 4 on the inner peripheral surface 3 a of the through hole 3 of the weight body 2. Thereby, the fixing strength of the tube 6 is further increased.

  Further, since the tapered portion 4b is formed at the boundary between the inner peripheral surface 3a of the through hole 3 and the protrusion 4, the tube 6 gets over the protrusion 4 when the tube 6 is press-fitted into the through hole 3. This facilitates insertion of the tube 6 into the through hole 3 (that is, attachment of the tube 6 to the weight body 2).

  Although several embodiments of the present invention have been described above, the present invention is not limited to the first to eighth embodiments, and various modifications can be made without departing from the scope of the present invention. is there.

  For example, the present invention may be configured by combining two or more technical ideas employed in the first to eighth embodiments.

  Of course, the weight according to the present invention is not limited to being used as a head of a shark turnip but can be used as a weight for various types of fishing gear.

  INDUSTRIAL APPLICABILITY The present invention can be used for a fishing tackle weight used for a head of a shark turnip and a shark turnip.

1A to 1H: Weight 2: Weight main body 3: Through hole 3a: Inner peripheral surface 3b of the through hole: Tapered portion 3d: Opening edge 3da of the inner peripheral surface of the through hole 4: Upper portion of the opening edge 4: Projection 4a : Projection tip 4b: Tapered portion 6: Tube 6a: Tube outer peripheral surface 10: Hook turnover 11: Hook turnip head 13: Line

Claims (10)

While a fluororesin line protection tube through which the line passes is inserted through a through hole provided through the tungsten weight body,
The fishing tackle weight according to claim 1, wherein the tube is fixed to the through hole by being pressed against the inner peripheral surface of the through hole by an elastic restoring force of the tube. At least one protrusion is integrally formed on the inner peripheral surface of the through hole, and the diameter of the through hole is locally reduced at the position of the protrusion,
The fishing tackle weight according to claim 1, wherein the tube is in pressure contact with at least the protrusion on the inner peripheral surface of the through hole. The cross-sectional shape of the protrusion is a mountain shape,
The fishing tackle weight according to claim 2, wherein the tube is pressed against at least the protrusion on the inner peripheral surface of the through-hole so that the tip of the protrusion bites into the outer peripheral surface of the tube.   The fishing tackle weight according to claim 2, wherein a boundary portion between the inner peripheral surface of the through hole and the projecting portion is formed in a tapered shape. At least part of the length direction of the through hole on the inner peripheral surface of the through hole is formed in a taper shape,
The fishing tackle weight according to any one of claims 1 to 4, wherein the tube is in pressure contact with at least a tapered portion of an inner peripheral surface of the through hole. The tube is inserted into the through hole in a state in which the end portion of the tube protrudes from the opening direction of at least one of both opening ends in the length direction of the through hole,
At least a part in the circumferential direction of the opening edge part on the at least one opening end side of the inner peripheral surface of the through hole is angular, and the cross-sectional angle of the at least part of the opening edge part is set to an acute angle. ,
The fishing tackle weight according to claim 1, wherein the tube is in pressure contact with the at least part of the opening edge.   The weight for fishing gear according to any one of claims 1 to 6, wherein the tube is fixed to the through hole so as to be extractable.   The fishing tube weight according to claim 1, wherein the tube is made of polytetrafluoroethylene as a fluororesin.   The fishing tackle weight according to any one of claims 1 to 8, which is used as a head of a shark turnip.   A fishing tackle turnip, wherein the weight according to claim 1 is used as a head.