JPH05336635A - Cable high tensile strength body fixing device - Google Patents

Abstract

PURPOSE:To prevent a high tensile strength body from buckling by a curve, etc., by applying a reinforcing member around the high tensile strength body inside a cable and uniting them. CONSTITUTION:At the junction of a cable 1, which has a high tensile strength body 2 at the center, a reinforcing member 7 in the shape of a cylindrical pipe the inside diameter of which is a little larger than the outside diameter of the high tensile strength body 2 is installed on the high tensile strength body 2 inside the cable 1. This reinforcing member 7 is provided with a reinforcing member calking part 12 by a calking tool, and is united with the high tensile strength body 2. A reinforcing member fixing part 8 extended out of the reinforcing member 7 is fixed by a high tensile strength body catching metal fitting 5 and a fixing metal fitting 6.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cable high tensile strength member fixing device, and more particularly to a cable high tensile strength member fixing device for preventing a high tensile strength member provided in a cable from buckling due to bending in a connection box. is there.

[0002]

2. Description of the Related Art Conventionally, a high tensile strength member in a cable has been designed so as to have a proof stress against a tension applied when the cable is laid. And, at the cable connection point, when the high tensile strength member is fixed to the metal object provided in the connection box, it has the proof strength against the tension applied to the cable,
When the fixing of the high tensile strength member is unstable with respect to the compressive force, the high tensile strength member may be bent to cause buckling.

FIG. 4 is a view showing a state in which a high tensile strength member is fixed by a conventional fixing device. In FIG. 1, a cable 1 has a high tensile strength member 2 inside and is fixed to a fixing device 4 by a fixing base 3. Further, the high tensile strength member 2 is also fixed to the fixing device 4 by the high tensile strength member grip fitting 5 and the fixing fitting 6.

[0004]

In such a conventional fixing device, the high tensile strength member 2 is resistant to the tension applied to the cable. However, since the buckling resistance of the high tensile strength member 2 is small with respect to the compressive force,
Bending may occur and buckling may occur as indicated by reference numeral 2 '. Therefore, there has been a demand for a fixing device for a high tensile strength member that has resistance to not only cable tension but also compression force.

The present invention has been made in view of the above problems, and a cable high tensile strength member having a high tensile strength member that is resistant to the tension applied to the cable and does not buckle against the compressive force. The object is to provide a fixing device.

[0006]

That is, the present invention is to fix a cable having a high tensile strength member to a fixed metal member provided in a connection box at a connection point of a cable having a high tensile strength member at the center thereof. In the device, the inner diameter is larger than the outer diameter of the high tensile strength member, and the reinforcing member is attached to cover the outer peripheral portion of the high tensile strength member along the longitudinal direction, and the reinforcing member is provided at one end of the reinforcing member. A reinforcing member fixing portion having an inner diameter smaller than the outer diameter of the high tensile strength member and extending from the reinforcing member, and a tightening portion for abutting and integrally fixing the reinforcing member to the high tensile strength member. It is characterized in that the high tensile strength member and the reinforcing member fixing portion are fixed to the fixed metal object.

[0007]

In the cable high tensile strength member fixing device of the present invention, the outer circumference of the high tensile strength member is covered with the reinforcing member having high steel property without changing the cable structure. As a result, the high tensile strength member can improve not only the tension of the cable but also the proof stress against the compressive force. Then, by caulking the reinforcing member, or by fastening it with a screw or the like, the reinforcing member is integrated with the high-tensile-strength member so that the reinforcing member has a proof strength against the tension and compression of the cable.

[0008]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 2 shows an example of a reinforcing member constituting the cable high tensile strength member fixing device of the present invention.
In the figure, the high tensile strength member 2 of the cable is covered with a reinforcing member 7 having a cylindrical pipe shape. The reinforcing member 7 has a structure in which the inner diameter D is slightly larger than the outer diameter d of the high tensile strength member 2. Therefore, the reinforcing member 7
It is possible to insert the high tensile strength member 2 therein.

The reinforcing member fixing portion 8 exposed from the reinforcing member 7 is smaller than the outer diameter of the reinforcing member 7 in order to facilitate the attachment to the high tensile strength member holding metal fitting, as described later. ..

FIG. 3 is a view showing another example of the reinforcing member constituting the cable high tensile strength member fixing device of the present invention.
FIG. 3A is a perspective view showing a state in which the reinforcing member is mounted on a high tensile strength member, and FIG. 3B is a sectional view of FIG.

The high tensile strength member reinforcing portion 9 of the high tensile strength member 2 is composed of two reinforcing members 10a and 10 which are half-divided in this embodiment.
It is sandwiched by the combination of b.
Then, the high tensile strength body 2 is integrated with the reinforcing members 10a and 10b by tightening the reinforcing members 10a and 10b with a plurality of tightening screws 11.

In the case of this example, the reinforcing members 10a and 10b
Since the mounting work can be performed from the side of the high tensile strength member 2, it is effective in a narrow working environment in the connection box.

FIG. 1 is a sectional view showing a situation where the high tensile strength member 2 is reinforced by using the reinforcing member 7 shown in FIG. In the figure, a reinforcing member 7 is attached to the high tensile strength member 2. The reinforcing member 7 is provided with a plurality of reinforcing member caulking portions 12 in a portion in contact with the high tensile strength member 2. Then, on one side of the cylindrical pipe-shaped reinforcing member 7,
A high-strength member protrusion preventing portion 13 is provided.

In order to fix the high tensile strength member 2 to the fixing device 4, first, the reinforcing member 7 is inserted from the tip of the high tensile strength member 2. Then, the tip portion of the high tensile strength member 2 is reinforced by the reinforcing member 7.
The high-tensile-strength body protrusion preventing portion 13 is attached until it abuts.
Then, the high tensile strength member 2 and the reinforcing member 7 are integrated by caulking a plurality of locations from the outer periphery of the high strength member protrusion preventing portion 13 of the reinforcing member 7 with a caulking tool (reinforcing member caulking portion 12).
Next, the reinforcing member fixing portion 8 is attached to the high tensile strength member gripping fixture 5 to fix the high tensile strength member 2.

In this way, as shown in FIG. 1, the high tensile strength member 2 is fixed to the high tensile strength member gripping fitting 5 and the fixing fitting 6. As a result, the high tensile strength member 2 is fixed to the fixing device as shown in FIG.

In this state, even if a tension or a compression force is applied to the high tensile strength member 2, its proof strength is, for example, even when the caulking is carried out at three points using a copper pipe (outer diameter 5 mmφ, inner diameter 4 mmφ). , Yield strength of 1000N or more can be expected.

Further, when a compressive force is applied, the caulking state is insufficient, so that even if the high tensile strength member 2 moves, the high tensile strength member protrusion preventing portion 13 provided in the reinforcing member 7 prevents There is an effect that the movement of the body 2 does not occur.

The material and the wall thickness used for the reinforcing member 7 may be selected in consideration of the strength required for reinforcing the high tensile strength member such as the caulking force and buckling resistance.

According to such a fixing device, it is possible to easily fix a high tensile strength member having a proof stress against pulling and compression without requiring a special technique.

Further, there is an advantage that the high tensile strength member can be easily reinforced without largely changing the fixing procedure.

Further, the high-strength member protrusion preventing portion provided on the reinforcing member can prevent the high-strength member member from moving due to protrusion.

[0023]

As described above, according to the present invention, the cable high tensile strength member is fixed to have a high tensile strength member that is resistant to the tension applied to the cable and does not buckle against the compressive force. A device can be provided.

[Brief description of drawings]

FIG. 1 is a longitudinal sectional view showing a state of fixing a high tensile strength member by a cable high tensile strength member fixing device of the present invention.

FIG. 2 is a perspective view showing an example of a reinforcing member that constitutes the cable high tensile strength member fixing device of the present invention.

FIG. 3 is a view showing another example of a reinforcing member which constitutes the cable high tensile strength member fixing device of the present invention.

FIG. 4 is a view showing a state in which a high tensile strength member is fixed by a conventional fixing device.

[Explanation of symbols]

1 ... Cable, 2 2 '... High tensile strength member, 3 ... Fixing stand, 4
… Fixing device, 5… High tensile strength body gripping metal, 6… Fixing metal,
7, 10a, 10b ... Reinforcing member, 8 ... Reinforcing member fixing portion,
9 ... High tensile strength member reinforcing portion, 11 ... Tightening screw, 12 ... Reinforcing member crimping portion, 13 ... High tensile strength member protruding preventing portion.

Claims (3)

[Claims] 1. A cable high tensile strength member fixing device for fixing the high tensile strength member to a fixed metal member provided in a connection box at a connection point of a cable having a high tensile strength member at a central portion thereof, wherein the inner diameter is the above-mentioned. A reinforcing member that is larger than the outer diameter of the high tensile strength member and is attached to cover the outer peripheral portion of the high tensile strength member along the longitudinal direction; and a reinforcing member that is provided at one end of the reinforcing member and has an inner diameter that is outside the high tensile strength member. A reinforcing member fixing part extending from the reinforcing member in a shape smaller than a diameter; and a tightening part for abutting and integrally fixing the reinforcing member to the high tensile strength member, the high tensile strength member and the above A cable high tensile strength member fixing device characterized in that a reinforcing member fixing portion is fixed to the fixed metal member. 2. The cable high tensile strength member fixing device according to claim 1, wherein the reinforcing member is a cylindrical pipe-shaped member which is concentric with the high tensile strength member. 3. The cable high tensile strength member fixing device according to claim 1, wherein the reinforcing member is formed by combining at least two arc-shaped members concentric with the high tensile strength member.