JP2005229940A - Ball sinker - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a repeatedly usable ball sinker for fishing enabling the closure of a groove of the sinker with a small force, capable of fixing a fishing line passed through the center of the sinker and enabling easy reopening of the nearly V-shaped groove after closing the groove. <P>SOLUTION: The ball sinker 1 has a groove 2 having a nearly V-shaped cross-section on one side of the sinker and a slit 3 at the back of the sinker 1 along the same circumferential direction. The bottom of the nearly V-shaped groove 2 passes straightly through the center of the ball sinker 1 to pass the fishing line 4 through the center of the sinker in a manner held straightly in the V-shaped groove 2 in the case of inserting the fishing line 4 into the V-shaped groove 2. The opening edges 2a, 2b of the nearly V-shaped groove 2 are inclined toward the outside of the V-shaped groove 2. The groove 2 of the ball sinker 1 is closeable without using a large force by the presence of the slit 3 and the closed groove is easily reopenable and reusable. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a round ball spindle which is locked in the middle of a fishing line.

  As shown in FIG. 3A, the round ball weight 51 has a spherical lead ball (including a spherical shape and an elliptical spherical shape) having a groove 52 having a substantially V-shaped cross section, and the substantially V-shaped groove 52. The fishing line 53 is inserted into the fishing line 53, and as shown in FIG. 3 (b), a substantially V-shaped groove 52 is closed by sandwiching the round ball weight 51 with pliers or the like, and is locked in the middle of the fishing line 53. It is used to adjust weights for fishing.

Generally, as shown in FIG. 3C, the round ball spindle 51 has a depth that the substantially V-shaped groove 52 exceeds the center of the round ball spindle 51 so that the round ball spindle 51 is easily deformed when sandwiched with pliers or the like. Has reached. For this reason, since the fishing line 53 does not pass through the center of the round ball weight 51 when the circular ball weight 51 is locked to the fishing line 53, when the circular ball weight 51 is locked to the fishing line 53, as shown in FIG. The balance of the mechanism is broken up and down the round ball weight 51. Further, it is preferable that the bottom of the substantially V-shaped groove 52 passes through the center of the round ball spindle 51, but in this case, a considerable force is required to close the substantially V-shaped groove 52 of the round ball spindle 51. Become. Regarding such a round ball spindle 51, those described in the following Patent Documents 1 and 2 are known (in addition, the invention related to the round ball spindle described in these documents is the invention according to the present invention). Not directly related).
JP2002-191389 JP 2001-275537 A

  The present invention does not require a large force to close the groove of the round ball spindle, and can lock the fishing line through the center of the round ball spindle, and after closing the substantially V-shaped groove, The purpose of the present invention is to provide a round ball spindle that can be easily reopened in the shape of a character and can be used repeatedly.

  The round ball spindle according to the present invention has a groove having a substantially V-shaped cross section into which the fishing line is inserted, and the circular ball spindle for inserting the fishing line into the substantially V-shaped groove and closing the groove to engage the fishing line. A slit is formed on the back surface of the substantially V-shaped groove of the round ball spindle. Thereby, the force required to close the groove of the round ball spindle can be reduced. Further, in this case, when the round ball spindle is locked to the fishing line by closing the substantially V-shaped groove, the slit opens, so that by closing this slit, the substantially V-shaped groove of the round ball spindle is opened to the fishing line. Can be removed from. Further, when the substantially V-shaped groove of the round ball spindle is opened, both sides of the slit come into contact with each other. Therefore, it is possible to prevent the round ball spindle from being damaged by excessively opening the substantially V-shaped groove of the round ball spindle.

  Further, it is preferable to set the bottom of the substantially V-shaped groove so as to pass through the center of the round ball spindle so that the fishing line is locked so as to pass through the center of this round ball spindle. Thereby, when a fishing line is put into the substantially V-shaped groove of the round ball weight, the circular ball weight can be locked to the fishing line so that the fishing line passes through the center of the round ball weight.

  Moreover, the opening edge part of a substantially V-shaped groove | channel is good to incline on the outer side of a groove | channel. Thus, when the substantially V-shaped groove is closed, the edge of the substantially V-shaped groove is open, and the substantially V-shaped groove can be opened from here. It can be easily removed from the fishing line.

  In addition, lead is usually used as the material of the round ball spindle, but it is preferable to use electrolytic lead that is environmentally friendly.

  According to the round ball spindle of the present invention, a large force is not required to close the groove of the round ball spindle. Further, since the fishing line can be locked through the center of the round ball spindle, the balance of the device is not lost. Moreover, after closing the substantially V-shaped groove, it is easy to open the substantially V-shaped groove again, and it can be used repeatedly by removing it from the fishing line.

  Below, the round ball spindle concerning one embodiment of the present invention is explained based on a drawing.

  As shown in FIGS. 1A and 1B, a round ball spindle 1 according to an embodiment of the present invention is made of a substantially spherical lead ball. A groove 2 having a substantially V-shaped cross section is formed on one side of the round ball spindle 1 along one circumferential direction passing through the center, and a slit 3 is formed on the back surface along the same circumferential direction. Has been.

  As shown in FIGS. 2A and 2B, the substantially V-shaped groove 2 is straight when the fishing line 4 passes through the center of the round ball weight 1 when the fishing line 4 is inserted into the substantially V-shaped groove 2. The bottom of the substantially V-shaped groove 2 is formed so as to pass straight through the center of the round ball weight 1 so as to fit in the substantially V-shaped groove 2. The opening edges 2a and 2b of the substantially V-shaped groove 2 are inclined toward the outside of the substantially V-shaped groove 2, respectively. As shown in FIG. 1A, the slit 3 is formed with a predetermined depth on the back surface of the substantially V-shaped groove 2 of the round ball spindle 1.

  Since this round ball weight 1 is formed so that the bottom of the substantially V-shaped groove 2 passes through the center of the round ball weight 1, when the fishing line 4 is inserted into the substantially V-shaped groove 2, the fishing line 4 becomes a round ball. Fits through the center of the weight 1. Accordingly, when the substantially V-shaped groove 2 of the round ball weight 1 is closed in this state, the circular ball weight 1 is locked to the fishing line 4 while the fishing line 4 is stored so as to pass through the center of the round ball weight 1. be able to. Therefore, the balance of the device is not lost.

  Further, since the slit 3 is formed on the back surface of the substantially V-shaped groove 2, the cross-sectional area of the portion 5 where the round ball weight 1 bends is small, and when the substantially V-shaped groove 2 of the round ball weight 1 is closed. There is no need for great power.

  In the state where the substantially V-shaped groove 2 is closed and the circular ball weight 1 is locked to the fishing line 4, as shown in FIGS. 2 (a) and 2 (b), the slit 3 on the back surface of the substantially V-shaped groove 2. Will be open. Further, the inclined portions 2 a and 2 b of the opening edge of the substantially V-shaped groove 2 are opened from the closed portion of the substantially V-shaped groove 2.

  The round ball weight 1 applies a force to both sides of the opened slit 3 and closes the slit 3, thereby reopening the substantially V-shaped groove 2 and removing the round ball weight 1 from the fishing line 4. Alternatively, the round ball weight 1 may be removed from the fishing line 4 by pressing and opening the inclined portions 2 a and 2 b of the opening edge of the substantially V-shaped groove 2 to reopen the substantially V-shaped groove 2.

  Even when the round ball weight 1 is removed from the fishing line 4, the slit 3 is formed on the back surface of the substantially V-shaped groove 2, so that the cross-sectional area of the bent portion 5 of the round ball weight 1 is smaller than the conventional one. Even when the substantially V-shaped groove 2 of the round ball weight 1 is opened, a large force is not required. When the substantially V-shaped groove 2 of the round ball spindle 1 is opened, both sides of the slit 3 hit each other, so that the round ball spindle 1 is prevented from being damaged by opening the substantially V-shaped groove 2 of the round ball spindle 1 too much. be able to.

  Thus, according to this round ball weight 1, no large force is required to close the substantially V-shaped groove 2 of the round ball weight 1, and the fishing line 4 is passed through the center of the round ball weight 1 and locked. So that the balance of the device is not lost. Further, since it is easy to open the substantially V-shaped groove 2 again after closing the substantially V-shaped groove 2, the round ball weight 1 can be repeatedly used by being removed from the fishing line 4.

  The round ball spindle according to the embodiment of the present invention has been described above, but the round ball spindle according to the present invention is not limited to the above embodiment.

  For example, in the above-described embodiment, the round ball spindle is illustrated as having a spherical shape, but the round ball spindle according to the present invention is not limited to this shape, and may be, for example, an elliptical ball. Further, rubber may be coated on the substantially V-shaped groove of the round ball spindle sandwiching the fishing line so as not to damage the fishing line.

(A) is a cross-sectional view of a round ball spindle according to an embodiment of the present invention, and (b) is a perspective view of the round ball spindle according to an embodiment of the present invention. (A) is a cross-sectional view which shows the use condition of the round ball spindle concerning one Embodiment of this invention, (b) is a perspective view which shows the use condition of the round ball spindle concerning one Embodiment of this invention. . (A) is a perspective view of a round ball spindle, (b) is a perspective view which shows the use condition of a round ball spindle.

Explanation of symbols

1 Round ball weight 2 Groove 3 Slit 4 Fishing line

Claims (4)

In the circular ball spindle having a substantially V-shaped cross section into which the fishing line is inserted, inserting the fishing line into the substantially V-shaped groove, closing the groove and locking the fishing line,
A round ball spindle characterized in that a slit is formed on the back surface of the substantially V-shaped groove of the round ball spindle.   2. The circle according to claim 1, wherein the bottom of the substantially V-shaped groove is set so as to pass through the center of the round ball spindle so that the fishing line is locked so as to pass through the center of the round ball spindle. Ball.   3. The round ball spindle according to claim 1, wherein an opening edge of the substantially V-shaped groove is inclined to the outside of the groove.   The round ball spindle according to any one of claims 1 to 3, wherein the round ball spindle is formed of electrolytic lead.