JP3592626B2 - Center of gravity moving device and lure manufacturing method using the same - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a device for moving a center of gravity fixed inside a lure provided with a fishing hook on a pseudo bait shaped to resemble the shape of a small fish, and a method of manufacturing a lure using the same.
[0002]
[Prior art]
Conventionally, as in the lure shown in FIG. 5, a fishing hook is attached to a metal fitting 13 installed on the abdomen side and a metal fitting 14 installed on the tip of the tail, and a fishing line is attached to the metal fitting 12 installed on the tip of the head. There is known one that is tied and used. The weight 2a of the lure is made of a metal exhibiting ferromagnetism at room temperature, and moves to the tail side of the moving space 4 formed by the partition wall 5 of the lure main body 1 during casting to extend the flight distance, When the fishing line is pulled later, the fishing line is magnetically attached to the magnet piece 3 fixed at the center of the abdomen side of the moving space 4 to stabilize the balance of swimming.
[0003]
6, a through hole 2c is formed in the axial direction of the cylindrical weight 2b, and a rod-shaped shaft 7 made of a steel wire such as stainless steel is inserted into the through hole 2c. Both ends of the shaft 7 are fixed so that the longitudinal direction of the shaft 7 coincides with the longitudinal direction of the internal space 6, and the weight 2b moves to the tail side of the lure main body 1 at the time of long throw to extend the flight distance, and It is also known that the weight 2b moves toward the center of the abdomen of the lure body 1 when the fishing line is pulled to stabilize the balance of swimming.
[0004]
[Problems to be solved by the invention]
However, the lure shown in FIG. 5 collides with the partition wall 5 that partitions the moving space 4 when the weight 2a moves, and noise is easily generated. Therefore, in order to prevent this, the diameter of the weight 2a and the widthwise direction of the moving space 4 are reduced. It is necessary to make the length substantially the same, and to set the minimum gap in which the weight 2a can move, and the manufacturing cost is higher than that of a normal lure.
[0005]
Further, when the entire lure body 1 is formed of wood, if the wood expands due to moisture, the moving space 4 may be deformed and the weight 2a may not be able to move, so that the above configuration cannot be adopted.
[0006]
Further, the lure shown in FIG. 6 can reduce the generation of noise when the weight moves, but it is necessary to reduce the impact noise generated when the columnar weight 2b collides with the rear end. . Further, it is necessary to facilitate the installation work of the rod-shaped shaft 7 and the weight 2b to reduce the cost.
[0007]
In view of the above, the present invention reduces a noise generated by the movement of a weight built in a lure main body, and facilitates the manufacture of a lure to reduce the cost, and a lug using the same. It is intended to provide a manufacturing method.
[0008]
[Means for Solving the Problems]
The present invention is a cylindrical case formed of a material that does not exhibit ferromagnetism at room temperature and has a hollow case open at both ends, which includes a metal exhibiting ferromagnetism at room temperature with through holes formed in the axial direction . A weight is loosely inserted, a rod-shaped shaft is inserted into a through-hole of the weight, and a cap formed by molding the magnet is fixed to a tip formed by molding the magnet. fitted in, that a cap having the cushioning function while fixing the cap having a rear end cushioning function obtained by molding the elastic material of the shaft becomes fitted to the rear end of the hollow casing The gist of the present invention is a center-of-gravity moving device fixed to a lure .
[0009]
Further, the cap formed by molding the magnet and the cap having the cushion function are provided with a concave portion at the center of the surface where the weight contacts, and fixed by fitting both ends of the rod-shaped shaft into the concave portion, respectively. The gist of the present invention is a gravity center moving device .
[0010]
Further, the rod-shaped shaft is a gravity center moving device which is a shaft made of phosphor bronze .
[0011]
A method of manufacturing a lure using the device for moving the center of gravity according to any one of claims 1 to 3, wherein the lure constitutes a lure body half that is substantially equally divided in the longitudinal direction. A method of manufacturing a lure, wherein an inner space in which a fixing rib having a groove for fixing the center of gravity moving device is formed is provided, and a hollow case side surface of the center of gravity moving device is fixed to the fixing rib. And
[0012]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a view showing various gravity center moving devices according to the present invention. The center-of-gravity shifting device 8a shown in FIG. 1A is a hollow center-opened material made of a material such as plastic, aluminum, brass, or copper that does not magnetically attach a magnet (ie, a material that does not exhibit ferromagnetism at room temperature). A weight 2d, which is made of tungsten containing iron and processed into a cylindrical shape, is loosely inserted into the case 11, a magnet cap 9a formed by molding a magnet into a cap shape is fitted to the tip of the hollow case 11, and a soft plastic or A cushion cap 10a made of an elastic material such as rubber is fitted.
[0013]
The center of gravity moving device 8b shown in FIG. 1 (b) has a hollow case 11 in which a weight 2b having a through-hole formed in the axial direction of a cylinder is loosely inserted, and phosphor bronze is inserted into the through-hole of the weight 2b. The rod-shaped shaft 7 made of is inserted, and both ends of the rod-shaped shaft 7 are fitted into and fixed to a concave portion provided at the center of the surface of the magnet cap 9b or the cushion cap 10b in contact with the weight.
[0014]
Further, the center-of-gravity moving device 8c shown in FIG. 1C is obtained by changing the cylindrical weight 2d shown in FIG. 1A to a spherical weight 2a, and the spherical weight 2a is a hollow case. It rolls inside 11 and moves.
[0015]
The center-of-gravity moving device 8d shown in FIG. 1 (d) is different from the center-of-gravity moving device 8b shown in FIG. 1 (b) in that the cylindrical weight 2b having a through-hole is formed by a through-hole in the axial direction of the ball. Is replaced with a weight 2e having a hole, and a rod-shaped shaft 7 made of phosphor bronze is inserted into a through hole of the weight 2e, and both ends of the rod-shaped shaft 7 are connected to the weight of the magnet cap 9b or the cushion cap 10b. Are fitted and fixed in a concave portion provided at the center of the surface in contact with.
[0016]
Further, the center of gravity moving device 8e shown in FIG. 1 (e) uses a hollow case 11d whose cross section in the longitudinal direction is not linear but is curved, and has a spherical weight inside. 2a is inserted. The weight 2a rolls and moves inside the hollow case 11d, and has a magnet cap 9c fitted at the tip of the hollow case 11d and a cushion cap 10c fitted at the rear end.
[0017]
FIG. 2 is an explanatory view showing a state where the lure main body and the center of gravity moving device are disassembled. The lure manufacturing method according to the present invention will be described with reference to FIG. The lure has lure main body halves 1a and 1b that are approximately equally divided in the longitudinal direction, and a center of gravity moving device 8. Further, the lure main body half 1a has an internal space, in which fixing ribs 15a and 15b having grooves for fixing the center of gravity moving device 8 are formed. Similarly, the lure main body half 1b also has an internal space, not shown, and has a fixing rib having a groove for fixing the center of gravity moving device 8. A metal fitting 12 to which a fishing line is tied is installed at the tip of the head, a metal fitting 13 to which a fishing hook is attached is installed on the abdomen side, and a metal fitting 14 to which a fishing hook is attached is also installed at the tail tip. Next, while the side surface of the hollow case 11 of the center-of-gravity shifting device 8 is fixed to the fixing ribs 15a, 15b with an adhesive or the like, the luer body halves 1a, 1b are overlapped with the adhesive or the like applied. The assembly of the lure is completed.
[0018]
FIG. 3 is an explanatory view showing a state in which the center of gravity moving device is fixed to the lure main body half. The configuration shown in FIGS. 3A and 3B is a diagram showing a case where the lure main body is formed of plastic. The lure 1a shown in FIG. 3A is a lure whose longitudinal direction on the abdomen side is substantially linear, and in this case, a center of gravity moving device using a hollow case whose longitudinal cross section is linear. 8a is used. The lure 1c shown in FIG. 3 (b) is a lure having a curved longitudinal direction on the abdomen side. In this case, the center of gravity moving device 8e using a hollow case having a curved longitudinal section. Is used.
[0019]
The configuration shown in FIG. 3C is a diagram showing a case where the lure main body is formed of wood. In this case, the lure main body half 1d is provided with a space in which the center of gravity moving device 8a is installed, and half of the center of gravity moving device 8a is accommodated therein. Further, the lure main body half 1d made of wood is provided with a space for accommodating a long metal fitting 16 in which the fishing line fitting metal part 12a and the fishing hook fitting parts 13a, 14a are integrated. Therefore, even if the lure body expands due to moisture, the inside of the center of gravity moving device 8a is not affected.
[0020]
FIG. 4 is a view showing various gravity center moving devices according to the present invention. As described above, when the spherical weight 2a is used, a magnet whose inner diameter is slightly larger than the diameter of the weight 2a, such as the center of gravity moving device 8c shown in FIG. The cap 91a and the cushion cap 101a may be shaped to fit at both ends of the cylindrical case 11a. When the cylindrical weight 2f is turned sideways and the inside of the hollow case 11b is rolled as in the center of gravity moving device 8f shown in FIG. 4 (b), the outer shape of the hollow case 11d may be a quadratic prism. What is necessary is just to set the length in the short direction inside the hollow case 11b to be slightly larger than the width of the cylindrical weight 2f. Further, when it is desired to make the weight lighter than the weight 2f shown in FIG. 4B, or when the lure body is used in a shorter width direction, as in the center of gravity moving device 8g shown in FIG. The length of the hollow rectangular column-shaped case 11c in the short direction may be reduced, and the width of the weight 2g may be reduced correspondingly. When the cylindrical weight 2d is oriented vertically and slid in the cylindrical case as in the center of gravity moving member 8a shown in FIG. 4D, a cylindrical case 11a similar to that shown in FIG. Also in this case, it is sufficient to use the cylindrical case 11a whose inner diameter is slightly larger than the diameter of the weight 2d. Further, when it is desired to reduce the weight of the weight 2d, a weight 2h obtained by cutting the cylindrical weight 2d into a short length like the center of gravity moving member 8h shown in FIG. 4E may be used. By adjusting the length of the cylindrical weight 2d or 2h in this way, various types of lures such as a light lure floating in water called floating, a lure of the same specific gravity as water called suspend, and a lure sinking in water called sinking can be used. Variations of lures can be manufactured.
[0021]
Needless to say, various embodiments can be adopted without departing from the spirit of the present invention. For example, the magnet caps 9a, 9b, 9c and the like are formed by molding magnets into cap shapes, but may be caps in which magnet pieces are stuck only to the surfaces where the weights 2a, 2b and the like come into contact. . The material of the weight is not limited to tungsten containing iron, but may be any weight containing a metal exhibiting ferromagnetism at room temperature. Further, a cap containing a metal exhibiting ferromagnetism at normal temperature, such as a cap containing iron, may be used instead of the magnet cap fitted to the tip of the hollow case. In this case, the weight to be inserted may be cylindrical, the front part of the cylindrical weight may be a magnet piece, and the rear part may be a metal having a high specific gravity such as tungsten.
[0022]
【The invention's effect】
As described above , according to the present invention relating to the center-of-gravity moving device, it is possible to reduce noise due to the movement of the weight, and to prepare a plurality of center-of-gravity moving devices in which the weight of the weight is appropriately changed in advance, the same A plurality of lures with different weights can be easily manufactured using the lure body having the shape.
[0023]
Further , according to the present invention, which relates to a method of manufacturing a lure using the above-described center-of-gravity moving member, the lure incorporating the center-of-gravity moving device reduces the generation of noise during the movement of the weight even if there is variation in the molding of the lure body. And the cost can be reduced by reducing defective products. Moreover, without the weight contacts the inner surface of the case of the centroid moving device, Ru can be suppressed noise.
[Brief description of the drawings]
FIG. 1 is an explanatory diagram showing a center of gravity moving device according to the present invention.
FIG. 2 is an exploded view showing a center of gravity moving device and a lure according to the present invention.
FIG. 3 is an explanatory view showing a lure incorporating the center of gravity moving device according to the present invention.
FIG. 4 is an explanatory diagram showing an embodiment of a center of gravity moving device according to the present invention.
FIG. 5 is an explanatory view showing a conventional center-of-gravity moving lure.
FIG. 6 is an explanatory view showing a conventional center-of-gravity moving lure.
[Explanation of symbols]
1 Lure main body 2a, 2b Weight 2c Through hole 3 Magnet piece 4 Moving space 5 Partition wall 6 Internal space 7 Rod-shaped shaft 8 Center of gravity moving device 9 Magnet cap 10 Cushion cap 15a, 15b, 15c, 15d Fixing rib

Claims (4)

In a hollow case molded of a material that does not exhibit ferromagnetism at room temperature and having both ends open, a cylindrical weight containing a metal exhibiting ferromagnetism at room temperature with through holes formed in the axial direction is loosely inserted. A rod-shaped shaft is inserted through the through hole of the weight, and a cap formed by molding the magnet is fitted to a tip of the hollow case while fixing the tip of the shaft to the cap formed by molding a magnet. A luer, wherein the rear end of the shaft is fixed to a cap having a cushion function formed by molding an elastic material, and the cap having the cushion function is fitted to the rear end of the hollow case. Center of gravity moving device to be fixed to . The cap formed by molding the magnet and the cap having the cushion function are provided with a recess at the center of the surface in contact with the weight, and fixed by fitting both ends of the rod-shaped shaft into the recess. Item 2. A center of gravity moving device according to Item 1 . 3. The apparatus for moving the center of gravity according to claim 1, wherein the rod-shaped shaft is a shaft made of phosphor bronze . 4. A method of manufacturing a lure using the device for moving the center of gravity according to any one of claims 1 to 3, wherein the lure forms a lure body half that is substantially equally divided in a longitudinal direction, and the luer body half is formed with the lure body. A method for manufacturing a lure, comprising: providing an internal space in which a fixing rib having a groove for fixing a center of gravity moving device is formed, and fixing a hollow case side surface of the center of gravity moving device to the fixing rib .

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