JP2000228122A - Cable protection cover - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent damage bitten by a rat and also cut off noise caused by inner and outer electromagnetic waves by spirally winding a metallic thin plate containing iron as a main constituent around the periphery of an insulated and covered electric cable. SOLUTION: A cable 13 is composed by covering the periphery of a core 14 with an insulation layer 15 formed of a synthetic resin. A protection cover 1 is installed on the periphery of the cable 13 in order to prevent damage by a rat and to cut off noise from the inside and outside. The protection cover 1 is formed by spirally winding a thin plate 2 formed of, for instance, a stainless steel or steel plate mainly containing iron as a main constituent. The protection cover 1 is formed by using a thin plate 2 having, for instance, a thickness of around 0.2 mm and a width of around 1 cm so as to set its length to about 60 cm. Plural kinds of protection covers 1 having different diameters are formed in advance so as to make them adaptable to a variety of cables 13. A V-shaped slit 3 is formed at each end of the thin plate 2 of the protection cover 1 in order to connect it to other protection covers 1 without a seam.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cable protection cover for preventing a mouse from biting a power supply or a communication electric cable to cause a disconnection accident or a leakage accident.

[0002]

2. Description of the Related Art In recent years, the number of breaks in electric cables and the number of accidents due to electrical leakage caused by rats have increased. In particular, since the back side of a commercial refrigerator used in a restaurant or the like is warm and easy for a mouse to live in, a power cable wired on the back side is often damaged.

[0003] For this reason, the outer layer of an electric cable is made to contain, for example, a terpenoid repellent which emits an odor that rats dislike (Japanese Unexamined Patent Publication No. 5-34292).
1, ibid. 9-204821).

[0004]

However, even if the above-mentioned repellent is contained, the effect of the repellent disappears with time, so that it cannot be a fundamental solution.

[0005] Therefore, a main object of the present invention is to make it possible to permanently and semi-permanently prevent damage caused by a rat being bitten by an electric cable. Another object is to block noise caused by electromagnetic waves from inside and outside, so as to prevent external equipment from adversely affecting electrical equipment and noise generated from cables from adversely affecting other electrical equipment. Is to do.

[0006]

In order to achieve the above object, the protective cover of the present invention is made of a thin metal plate containing iron as a main component, and is configured to be spirally wound around the outer periphery of an electric cable.

[0007] Since the protective cover is formed of a metal thin plate containing iron as a main component, by mounting the protective cover on the outer periphery of the electric cable, the rat cannot bite, so that the electric cable can be disconnected. Ground faults are prevented semi-permanently. In addition, since the metal protective cover is excellent in electromagnetic shielding effect, especially when it is attached to a communication cable, the equipment connected to it may be adversely affected by external noise, and noise generated from the cable may be reduced. This prevents other devices from being adversely affected. In addition, since the protective cover is formed by spirally winding a thin plate, the end of the thin plate is pushed radially outward, fitted into the outer periphery of the electric cable, and then the entire cover is rotated. With this, it can be easily attached to the electric cable. In other words, the cover can be retrofitted to the electric cable without removing the electric cable from the electric device and without removing the outlet from the electric cable, so that the cover can be easily applied to existing electric products. In addition, since the cover is spiral and has flexibility,
Wiring of electric cables can be performed freely.

[0008] In a preferred embodiment of the present invention, a notch is provided at an end of the thin plate so as to be connected to another thin plate. With this configuration, when a plurality of protective covers are attached to the electric cable, the cuts are connected to each other, whereby the covers can be connected without generating a gap between the joints of the covers. Therefore, even when a plurality of covers are used, the mouse does not bite the cable from the gap between the joints, and the protection of the cable can be ensured. In addition, by covering the cables without gaps with a plurality of covers, an excellent electromagnetic shielding effect can be obtained.

In a preferred embodiment, the thin plate is coated with a resin. In this way, the protective layer prevents the protective cover from damaging the electrical cable.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of a protective cover according to the present invention will be described below with reference to the drawings. FIG. 1 shows an example in which a protective cover is applied to a power cable of a refrigerator. The refrigerator 10 has a power supply cable 13 having an outlet 12 attached to the tip thereof connected to the back side of the main body 11. The cable 13 is a core wire 14 shown in FIG.
Is covered with an insulating layer 15 made of synthetic resin.

As shown in FIG. 2, a protective cover 1 is attached to the outer periphery of the cable 13 in order to prevent damage from rats and to block noise from inside and outside. The protective cover 1 is formed by spirally winding a thin plate 2 made of, for example, stainless steel or a steel plate containing iron as a main component.
The cover 1 is formed by, for example, using a thin plate 2 having a thickness of about 0.2 mm and a width of about 1 cm, and spirally winding the thin plate 2 to have a length of about 60 cm. In addition, a plurality of types of covers 1 having different diameters are formed in advance so as to be adaptable to various types of cables 13.

Further, V-shaped cuts 3 are provided at both ends of the thin plate 2 of the cover 1 for seamless connection with other covers 1. At this time, a similar cut 3 engaging with the cut 3 is provided also at the end of the other cover 1 (FIG. 4).

When the cover 1 is attached to the cable 13, as shown in FIG. 3, the end of the thin plate 2 is pushed outward in the radial direction and fitted to the outer periphery of the cable 13, and the cover 1 is attached to the cable 13. Rotate around the axis in the R direction.
As a result, the cover 1 is fitted into the outer periphery of the cable 13 sequentially from the end, and the entire cover 1 is easily attached to the cable 13. After attaching one cover 1 in this way, another cover 1 is attached if necessary.

At this time, as shown in FIG. 4A, the notch 3 provided on the already-covered cover 1 and the notch 3 provided on another cover 1 are opposed to each other, and these notches 3 are shown in FIG. By attaching to the cable 13 in a state where they are engaged with each other as described above, the covers 1 are connected so that no gap is generated between the joints.

At this time, a protective material 16 such as a metal tape is wound around the outer periphery of the cable 13 (FIG. 3), and the thin plate 2 of the cover 1 is fitted into the protective material 16. By doing so, it is possible to prevent the cable 13 from being damaged by the edge of the thin plate 2 or the like.

Preferably, a coating layer made of a synthetic resin is provided on the entire surface of the thin plate 2. In this way, the thin plate 2 can be better prevented from damaging the cable 13.

As described above, the cable 13 of the refrigerator 10
By installing the metal protective cover 1 on the back of the refrigerator 10, the rear side of the refrigerator 10 is warm,
Damage caused by the rat biting the cable 13 is reliably prevented semipermanently. In addition, the metal protective cover 1
Is excellent in electromagnetic shielding effect and can reliably block noise from inside and outside. Therefore, especially when it is attached to the communication cable 13, the equipment connected to it is adversely affected by external noise or generated from the cable 13. It is possible to prevent the noise generated from affecting other devices.

Further, since the protective cover 1 can be easily attached to the cable 13 as described above, that is, the cable 13 can be removed from the refrigerator 10 or the outlet 1 can be removed.
2 can be installed by retrofitting without removing the cable 2 from the cable 13, so that it can be easily installed on the existing refrigerator 10 or other electric products. Further, since the cover 1 is formed in a spiral shape and has flexibility, the cable 13 can be freely wired.

Further, as described above, the cable 13
When a plurality of protective covers 1 are mounted on the thin plate 2, the cuts 3 provided at the ends of the thin plate 2 are engaged with each other,
Since each cover 1 is connected so that no gap is generated between the joints, the rat does not bite the cable 13 from the gap between the joints, so that the cable 13 can be protected reliably. In addition, by covering the cable 13 with a plurality of covers 1 connected without gaps, an excellent electromagnetic shielding effect is also exhibited.

[0020]

As described above, according to the protective cover of the present invention, damage caused by the electric cable being bitten by the mouse can be reliably prevented semipermanently, and the cable can be easily retrofitted to the cable of an existing electric product. . In addition, since noise due to electromagnetic waves from inside and outside can be cut off, it is possible to prevent electric equipment from being adversely affected by external noise and noise generated from a cable from affecting other electric equipment.

[Brief description of the drawings]

FIG. 1 is a rear view of a refrigerator showing an application example of a protective cover according to the present invention.

FIG. 2 is a perspective view in which a part of the cover is omitted.

FIG. 3 is a perspective view showing a state in which the cover is attached to a cable.

FIG. 4 is a perspective view showing an embodiment when connecting a cover.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Protective cover, 2 ... Thin plate, 3 ... Notch, 13 ... Electrical cable.

Claims (3)

[Claims] 1. A protective cover for covering an outer periphery of an electric cable covered with insulation, comprising a metal thin plate containing iron as a main component, and being spirally wound around the outer periphery of the electric cable. 2. The thin plate according to claim 1, wherein:
Cable protection cover with cuts to connect with other thin plates. 3. The cable protection cover according to claim 1, wherein the thin plate is coated with a resin.