JP6776382B2 - Wire fixing mechanism that fixes the one-way flow of wire in the wire insertion pipe - Google Patents

Description

The present invention relates to a wire fixing mechanism configured such that a wire inserted through a wire insertion pipe is circulated in one direction but fixed in the opposite direction so that reverse circulation is not possible.

Conventionally, for example, in the trap mechanism used when capturing a vermin, when the leg of the vermin steps on the tread, the trap wire is reduced in diameter due to the descent operation of the tread, and the leg of the vermin that steps on the tread is captured. The principle of doing is used.

In such a trap mechanism, the trap wire is reduced in diameter and the wire that captures the leg of the pest that stepped on the tread is inserted through the wire insertion pipe, and the wire is free in a certain direction in the wire insertion pipe. A wire fixing mechanism that can be inserted into the wire but is fixed in the opposite direction and does not flow is required.
This is because when the wire captures the leg of the vermin, a fixing mechanism is required in the wire insertion pipe to maintain the captured state.

Such a fixing mechanism is a so-called check valve function that allows the wire to be pulled out from the free end by pulling it toward the loop portion but does not move in the opposite direction, that is, toward the free end of the wire. , Patent Document 1).

Japanese Unexamined Patent Publication No. 2000-297849

Even if a mechanism similar to the check valve function is used, a structure having a complicated check function different from the liquid check valve function must be used because the object to be distributed is a wire, which is a solid string. .. Moreover, it has been difficult to house and configure the reverse-direction fixing mechanism in the handy wire insertion pipe.

In the present invention, a plurality of stopper balls are interposed between the peripheral walls of a tapered double pipe to fix the wires so that they do not flow backward due to the separation of the balls. A wire for fixing the one-way flow of wires in a wire insertion pipe. Provide a fixing mechanism.

In the present invention, an outer cylinder having a tapered inner wall, an inner cylinder slidable inside the outer cylinder, a wire for inserting the central portion of the inner cylinder, and a peripheral wall of the inner cylinder are perforated. With multiple ball play holes whose inner peripheral surface is tapered from the inside to the outside ,
The inner cylinder is loosely fitted into the ball play-fitting hole so as to be movable in the wire insertion direction with respect to the inner cylinder, and when the ball play-fitting hole of the inner cylinder and the tapered portion of the outer cylinder have a corresponding positional relationship. It is intended to provide a wire fixing mechanism for fixing a one-way flow of a wire in a wire insertion pipe composed of a stopper ball for pressing a wire surface through which the central portion of the wire is inserted.

Further, it is characterized in that the inner cylinder is moved and urged toward the inner wall of the tapered shape of the outer cylinder by a spring.

Further, the stopper ball is characterized in that the surface is surface-treated with a high coefficient of friction.

According to the invention of claim 1, an outer cylinder having a tapered inner wall, an inner cylinder slidable inside the outer cylinder, a wire passing through the center of the inner cylinder, and an inner cylinder. A plurality of ball play-fitting holes whose inner peripheral surface is tapered from the inside to the outside by perforating the peripheral wall of the ball, and play in the ball play-fitting holes so as to be movable in the wire insertion direction with respect to the inner cylinder. Since it is fitted, it is composed of a stopper ball that press-contacts the wire surface that inserts the central part of the inner cylinder when the ball play- fitting hole of the inner cylinder and the tapered part of the outer cylinder have a corresponding positional relationship. When the wire is pulled in one direction, the inner cylinder separates from the tapered part of the outer cylinder, the stopper ball becomes movable from the ball play-fitting hole to the outer cylinder , and the contact between the surface of the wire and the stopper ball separates. The wire can be freely inserted into the inner cylinder.
On the other hand, when the wire is pulled in the opposite direction, the inner cylinder moves in the direction of the taper portion of the outer cylinder, the tapered portions of each other are in close contact with each other, and the stopper ball is forced inward by the tapered portion of the outer cylinder. It is pushed and is in a state of pressure contact with the wire surface. That is, the stopper ball moves in the wire direction from the ball play-fitting hole, the surface of the wire and the stopper ball are in a pressure contact state, the wire is fixed, and the wire cannot move in the opposite direction. In such a state, the outer cylinder, the inner cylinder, and the wire have the effect of being fixed to each other.
In this way, while allowing the wire to flow in a certain direction, it can be fixed in the other direction and configured in a fixed stop state. Therefore, for example, in a pest trap structure, the loop portion wire that traps the leg is pulled and relaxed. It has the effect of enabling reliable operation with a structure that is simple to operate.
In addition, the inner peripheral surface of the ball play-fitting hole has a narrowed taper from the inside to the outside, and is loosely fitted to the inner cylinder in the wire insertion direction to form a ball play-fit hole in the inner cylinder. A gap is created between the stopper ball and the inner peripheral surface of the inner cylinder due to the configuration in which the wire surface that inserts the central part of the inner cylinder is pressed against each other when the tapered portion of the outer cylinder has a corresponding positional relationship. , When the movement of the wire is restricted or the movement of the wire is released, the stopper ball can easily move inside the inner cylinder, and the stopper ball can quickly restrict the movement of the wire and release the movement restriction.

According to the second aspect of the present invention, the inner cylinder is moved and urged toward the tapered inner wall of the outer cylinder by a spring, so that the wire can be pulled in a certain direction and fixed in the other direction. There is an effect that the fixed stop state can be obtained more quickly and surely.

According to the invention of claim 3 , since the surface of the stopper ball is treated with a high friction coefficient, there is an effect that the wire and the stopper ball can be surely pressed and contacted and the wire stop function can be surely performed.

It is an exploded perspective view which shows the wire fixing mechanism in embodiment of this invention. It is a figure which shows the wire fixing mechanism in embodiment of this invention, (a) is a top view, (b) is a bottom view, (c) is a side view. It is sectional drawing which shows the non-return structure of the wire fixing mechanism in embodiment of this invention, (a) is the figure which shows the state which released the wire movement, (b) is the figure which shows the state which regulated the wire movement. is there. It is a figure which shows the movement of the stopper ball in the wire fixing mechanism in embodiment of this invention, (a) shows the movement of the stopper ball when moving in the direction which regulates the movement of a wire, (b) is the movement of a wire. It is a figure which shows the movement of the stopper ball when moving in the direction which regulates.

In the present invention, an outer cylinder having a tapered inner wall, an inner cylinder slidable inside the outer cylinder, a wire for inserting the central portion of the inner cylinder, and a peripheral wall of the inner cylinder are perforated. It is freely fitable into a plurality of ball play-fitting holes and the ball play-fitting holes, and when the ball play-fitting holes of the inner cylinder and the tapered portion of the outer cylinder have a corresponding positional relationship, the central portion of the inner cylinder is moved. The gist is a wire fixing mechanism for fixing the one-way flow of a wire in a wire insertion pipe composed of a stopper ball for pressing the surface of the wire to be inserted.

Further, it is characterized in that the inner cylinder is moved and urged toward the inner wall of the tapered shape of the outer cylinder by a spring.

Further, the inner peripheral surface of the ball play fitting hole is characterized in that it has a narrowed taper from the inside to the outside.

Examples of the present invention will be described in detail with reference to the drawings.
Basically, as shown in FIG. 1, the present invention has a structure in which the inner cylinder 10 and the outer cylinder 20 are combined and the stopper ball 12 is interposed in the tapered portion 21 of the outer cylinder 20.

The outer cylindrical body 20 has a tapered inner wall, and the inner cylindrical body 10 is slidable inside the outer cylindrical body 20.
A wire W is inserted through the central portion of the inner cylindrical body 10, and a plurality of ball idle fitting holes 11 are formed in the peripheral wall of the inner cylindrical body 10. The inner peripheral surface of the ball play-fitting hole 11 has a narrow taper from the inside to the outside.

A stopper ball 12 for crimping and fixing the surface of the wire W is loosely fitted in the ball loose fitting hole 11. The surface of the stopper ball 12 is surface-treated with a high coefficient of friction.
Further, a spring 30 is interposed between the top end of the inner cylinder 10 and the top of the outer cylinder 20 to move the inner cylinder 10 to the tapered portion 21 which is the inner wall of the outer cylinder 20. doing.

The operation of the present invention will be specifically described.
As shown in FIG. 2, the wire fixing mechanism A inserts the wire W into the hollow portion 13 of the inner cylinder 10 and stores the inner cylinder 10 in the outer cylinder 20.
At this time, as shown in FIGS. 3A and 3B, the inner cylinder 10 is located at the tip of the outer cylinder due to the urging of the spring 30. That is, the tapered portion 21 of the inner peripheral wall of the outer cylindrical body 20 and the outer peripheral wall 14 of the inner cylindrical body 10 are in close contact with each other.

When the wire W is pulled toward the tip in this state, the inner cylinder 10 moves toward the tip of the outer cylinder 20 together with the wire W, as shown in FIGS. 4A and 4B. That is, when the ball play-fitting hole 11 of the inner cylinder 10 and the tapered portion 21 of the outer cylinder 20 have a corresponding positional relationship, the stopper ball 12 comes into contact with the surface of the wire W through which the central portion of the inner cylinder 10 is inserted. Is in a state of pressure contact with the inner wire W surface by the tapered portion 21 of the outer cylindrical body 20. Due to the pressure contact force, the wire W bites into the surface of the stopper ball 12 and becomes fixed.

On the other hand, when the wire W is pulled in the opposite direction to the above, the inner cylinder 10 moves in the direction of the base end of the outer cylinder 20 along with the wire W, and the stopper ball 12 separates from the surface of the wire W and the wire W The fixed state of the wire W is released, and the wire W can freely slide in a certain direction.

In this way, the pressure contact form between the stopper ball 12 and the wire W changes according to the pulling direction of the wire W, and the moving position of the stopper ball 12, that is, the free flow of the wire W from the fixed state of the wire W depending on the pulling direction of the wire W. It can be changed to a form.

It should be noted that the present invention is not limited to the above-described embodiment, but is disclosed in the configurations in which the configurations disclosed in the above-described embodiments are replaced with each other or the combinations are changed, known inventions, and the above-described embodiments. It also includes configurations in which the configurations are replaced with each other or the combinations are changed. Further, the technical scope of the present invention is not limited to the above-described embodiment, but extends to the matters described in the claims and their equivalents.

10 Inner cylinder 11 Ball play-fitting hole 12 Stopper ball 13 Hollow part 14 Outer wall 20 Outer cylinder 21 Tapered part 30 Spring A Wire fixing mechanism W wire

Claims (3)

An outer cylinder having a tapered inner wall, an inner cylinder slidable inside the outer cylinder, a wire passing through the center of the inner cylinder, and a perforated inner peripheral surface of the inner cylinder. With multiple ball play holes with a narrow taper from the inside to the outside ,
The inner cylinder is loosely fitted into the ball play-fitting hole so as to be movable in the wire insertion direction with respect to the inner cylinder, and when the ball play-fitting hole of the inner cylinder and the tapered portion of the outer cylinder have a corresponding positional relationship. wire fixing mechanism in more comprising wire insertion pipe and a stopper over the ball to press the wire surface for inserting the central portion of the body to fix the one-way flow of the wire. The wire fixing mechanism for fixing the unidirectional flow of wires in the wire insertion pipe according to claim 1, wherein the inner cylinder is moved and urged toward the inner wall of the tapered shape of the outer cylinder by a spring. Stopper over the ball wire fixing mechanism for fixing the one-way flow of the wires in the wire insertion pipe according to claim 1 or claim 2, characterized in that the high surface treatment of friction coefficient on the surface.

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