JP3258304B2 - Stopping the crushing weight - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to preventing a crushed weight from shifting.

[0002]

2. Description of the Related Art In fishing on a shore or breakwater using a small float, a small bite weight is attached to a thread such as a hook.
The crushing weight is made by splitting a soft metal particle such as lead into a crack, and after inserting the thread deep into the crack, the crack is crushed and attached to the thread. Representative examples of the crushing weight include a spherical gun ball and a flattened oval split bush.

FIGS. 3A and 3B show a gun ball 1. FIG. The crevice 2 of the gun ball 1 is provided along a cross section that substantially divides the gun ball 1 to a depth that divides about 70% of this cross section. When attaching the gun ball 1 to the thread 3, the thread 3 is inserted into the back of the split 2, and the split 2 is closed by applying a pressing force from both sides as shown by arrows in FIG. Therefore,
The yarn 3 along the bottom of the crevice 2 is sandwiched by the crevice 2 at a position deviated from the center line 4 of the gun ball 1. Although not shown, in the case of a split rivet, the split is cut to a depth of about 70% of the cross section, and the yarn is clamped at a position deviated from the center line of the split divide.

[0004]

As described above, the crushing weight attached to the line with the split closed as described above may be displaced downward if the line is pulled strongly during fishing. This is because the moment of the pressing force applied at the time of closing the split does not act so much on the back of the split that the thread is inserted, and even if the pressing force is applied strongly, the pinching force of the thread at the back of the split is not increased. Because the pinching force is relatively small, the pinching force cannot withstand the inertial force of the crushing weight when the thread is pulled. As described above, when the mounting position of the crushing weight shifts, there is a problem that the depth of the device also shifts from a desired position.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a stopper for a crushable weight which does not shift its mounting position even when a thread is pulled strongly.

[0006]

In order to solve the above-mentioned problems, the present invention relates to a stopper for preventing the crushing weight from shifting, the upper surface of which is in contact with the crushing weight attached to the thread from below. And a tubular portion extending downward from a lower central portion of the lower portion of the receiving portion is integrally formed of an elastic body, and is threaded from the upper central portion of the receiving portion to the lower end of the tubular portion to pass the thread. Holes were provided, and the diameter of the yarn holes was formed to be smaller than the diameter of the yarn.

That is, the crushable weight, which comprises a receiving portion and a cylindrical portion integrally formed of an elastic body and has a thread hole having a diameter smaller than that of the thread to which the crushable weight is attached, prevents the crushable weight from shifting. By inserting the thread into the attached thread and bringing the receiving portion into contact with the crushable weight from below, the thread sandwiched at the split at a position deviated from the center line of the crushable weight is brought into contact with the receiving portion of the receiving portion. Bend at
The downward movement of the crushable weight is prevented by the resistance of the bent portion of the yarn and the movement resistance of the slip stopper inserted into the yarn by the tightening force due to the elastic restoration.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. As shown in FIG. 1A, the stopper 5 for the crushed weight is composed of a dish-shaped receiving portion 6 and a cylindrical portion 7 extending downward from the center of the lower surface of the receiving portion 6 as a rubber as an elastic body. And a thread hole 8 penetrating from the center of the upper surface of the receiving portion 6 to the lower end of the cylindrical portion 7 is provided. The diameter of the thread hole 8 is formed to be smaller than the diameter of the hook element 9, and when the stopper 5 is inserted into the hook element 9, as shown in FIG. A thin guide thread 10 is hooked on the portion, the diameter of the thread hole 8 is increased by elastic deformation, and the hook 9 is pulled into the thread hole 8 by the guide thread 10.

FIGS. 2A and 2B show a state in which the stopper 5 is inserted into the hook 9 on which the gun ball 1 is attached. The slip stopper 5 is slid along the hook 9 and is in contact with the gun ball 1 from below. Since the stopper 5 is inserted by tightening the hook 9 by elastic restoring force, the downward movement of the gun ball 1 is prevented by the movement resistance.

Further, since the hook 9 is sandwiched in the depth of the crevice 2 deviated from the center line of the gun ball 1, the receiving portion 6 of the stopper 5 inserted into the hook 9 also has Abuts obliquely below the gun ball 1 deviated from the center line of the gun ball. For this reason, the hook 9 passed through the thread hole 8 bends at the contact portion with the gun ball 1,
The downward displacement of the gun ball 1 is also prevented by the bending of the hook 9.

In the above-described embodiment, the slip stopper is used for gun balls, but it can be used in exactly the same manner for splitting.

[0012]

As described above, the stopper of the crushing weight according to the present invention is formed by integrally forming the dish-shaped receiving portion and the cylindrical portion extending downward from the center of the lower surface of the receiving portion with an elastic body. By providing a thread hole smaller in diameter than the thread to which the crushing weight is attached, penetrating from the center of the upper surface of the receiving portion to the lower end of the cylindrical portion,
Since the receiving part is inserted from below into the thread to which the crushing weight is attached, and the receiving portion is brought into contact with the crushing weight from below, the thread pinched at the position deviated from the center line of the crushing weight is used. Bending at the abutting part of this receiving part prevents the downward movement of the crushing weight by the resistance of the bending part of the thread and the movement resistance of the slip stopper inserted into the thread by the tightening force due to elastic restoration. Thus, the depth of the device can be kept constant.

[Brief description of the drawings]

FIG. 1A is an external perspective view showing an embodiment of a stopper of a crushing weight, and FIG. 1B is a cutaway longitudinal sectional view showing a procedure for inserting the stopper of a in a hook.

2A is a front view showing a state in which the stopper of FIG. 1 is inserted into a hook, and FIG. 2B is a cutaway longitudinal sectional view showing an enlarged main part of FIG.

3A is a cross-sectional view of the gun ball, and FIG. 3B is a cross-sectional view taken along the line bb of FIG.

[Explanation of symbols]

 DESCRIPTION OF REFERENCE NUMERALS 1 Gun ball 2 split 3 Thread 4 Center line 5 Non-displacement 6 Receiving part 7 Tube part 8 Thread hole 9 Hook element 10 Guide thread

Claims (1)

(57) [Claims] 1. An upper surface having a crushing weight attached to a thread,
A dish-shaped receiving portion abutted from below and a cylindrical portion extending downward from the lower central portion of the receiving portion are integrally formed of an elastic body, and are formed from the upper central portion of the receiving portion to the lower end of the cylindrical portion. A thread hole that penetrates and passes the thread is provided, and the hole diameter of the thread hole is formed to be smaller than the diameter of the thread.