JPH0613765A - Electric wire support structure - Google Patents

Abstract

PURPOSE:To obtain an electric wire support structure which enables a work where electric wires led into a case are fixed to be easily carried out in an electronic device. CONSTITUTION:A band 301 is fitted to electric wires 1 to 4, and an electric wire support piece 302 is provided to a case. The band 301 of the electric wires 1 to 4 is engaged with the notch of the electric wire support piece 302 so as to prevent the electric wires 1 to 4 from coming off. Therefore, a work where electric wires are fixed to a case at a time can be easily carried out and lessened in working time. A work usually done by a few operators can be carried out by a single operator.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention can be applied to all electronic devices having an electric wire drawn into a housing. In particular, the present invention relates to an electric wire support structure that is effective in an electronic device that requires a large amount of electric wires to be drawn into a housing.

[0002]

2. Description of the Related Art In recent years, the problem of electromagnetic interference of electronic devices has been
As the importance is increasing, a method of supporting electric wires called a strain relief method shown in FIG. 6 is generally used as a measure for reducing electromagnetic interference. A shield wire is used as an electric wire to be drawn into the housing, a part of the braided wire portion of the shield is exposed, and the exposed part 5 of the braided wire is fixed to the housing by a strain relief fitting 102 made of a conductor.

However, this method cannot increase the density of electric wires that can be pulled out from the housing. Therefore, by adopting a structure using multiple strain relief fittings 301 as shown in FIG. There is a way to raise. However, in this method, it is necessary to position and support a plurality of electric wires at the same time when the electric wires are attached, so that a large number of personnel are required for the attaching work.

[0004]

SUMMARY OF THE INVENTION The present invention is intended to enable a single worker to carry out a work for drawing a plurality of electric wires into a housing at a place where an electronic device is installed in a short time. is there.

[0005]

According to the present invention, in order to facilitate the work of fixing the electric wires when a plurality of electric wires are drawn into the housing, the electric wires are simply supported on the housing side and the electric wire side. A mechanism is provided.

This will be described in detail with reference to FIG. A band 301 is wound around the electric wires 1 to 4 so that a part of the outer diameter thereof is thickened. This band can be attached to a cable and if it is strong enough to suspend the wire,
The material and shape are arbitrary.

On the other hand, a wire support fitting 302 is attached to the housing side that receives the wire. As shown in FIG. 2, the electric wire support fitting 302 has a rectangular notch wider than the outer diameter of the electric wire and narrower than the outer diameter of the band portion 301 of the electric wire. By hooking the band portion 301 of the electric wire on the notch of the electric wire support fitting 302, the electric wires 1 to 4 can be supported during the electric wire fixing work.

[0008]

By using the electric wire support of the present invention, even if the electric wire is not manually supported during the fixing work of the electric wire, the electric wire does not drop and the electric wire mounting work can be performed by one operator. , Easy to do.

[0009]

1 to 3 show the structure of an electric wire lead-in portion of an electronic device according to an embodiment of the present invention and the structure of an electric wire. Electrical wire
A band 301 is wound around 1 to 4 to increase the outer diameter of this portion. The wire support metal fitting 302 of the present invention is attached to the housing 303. As shown in FIG. 1, the electric wires 1 to 4 can be hooked on the cut portion of the electric wire support fitting 302. In the present embodiment, the electric wires are grouped in units of four and are fixed by one strain relief fitting 201.

In the procedure of the actual mounting work, first, the band portions 301 of the wires 1 to 4 are hooked on the wire support fitting 302. Then, the strain relief metal fitting 201 is used to fix it. Wires 1 to 4 even before fixing with strain relief fittings
Since the band 301 is hooked on the cut portion of the wire support bracket 302, the wire does not drop.

In this embodiment, the electric wire support fitting 302 is formed in a shape in which the cable insertion direction is bent upward to prevent the electric wire from moving toward the front and dropping during the work.

FIG. 4 shows an example of a side projection view of the electric wire support tool. The electric wire support tool 302 is used in the embodiment of FIG. 1, and the electric wire support in the front direction (left hand direction in FIG. 4) is used. It has a structure that prevents it from falling due to movement. Although the simple-type support tool 401 cannot prevent the wires from moving forward (in the left-hand direction in FIG. 4), if the number of wires to be attached at the same time is relatively small, the possibility of the wires falling is small.

FIG. 5 shows another embodiment of the present invention, in which the electric wire 4 can be obliquely attached to the frame 501 of the housing. The wire support fitting 401 is obliquely fixed to the frame 501 by a fitting 502.
Since the electric wire settles in the right-hand direction in FIG. 5 due to its own weight, the electric wire does not slide down in the left-hand direction in FIG. In this embodiment, the structure is such that eight electric wires are simultaneously fixed by the strain relief 201. In this structure, since the fixing screw 503 of the strain relief fitting 201 can be tightened from obliquely above, the workability is improved and the structure shown in FIG.
Since the space for screw tightening work in the left-right direction (space for inserting a screwdriver) can be reduced,
It is possible to continuously arrange the wires in the left-right direction of 5 at a small interval and to draw them out, so that the wire drawing density can be increased.

[0014]

EFFECTS OF THE INVENTION It is very difficult for a single worker to work to position and support a plurality of electric wires at the same time and to attach a strain relief fitting, but by adopting the electric wire support structure of the present invention , A single worker can easily install a plurality of electric wires. In addition, the work time of the wire installation work can be significantly reduced.

[Brief description of drawings]

FIG. 1 is a perspective view of a first embodiment of the present invention.

FIG. 2 is a top view of the first embodiment of the present invention.

FIG. 3 is a side view of the first embodiment of the present invention.

FIG. 4 is a side view of a structural example of the electric wire support fitting of the present invention.

FIG. 5 is a side view of a second embodiment of the present invention.

FIG. 6 is an explanatory diagram of a conventional strain relief system.

FIG. 7 is an explanatory diagram of a conventional multiple strain relief system.

[Explanation of symbols]

 1 to 4 ... Electric wire, 201 ... Strain relief fitting, 301 ... Electric wire outer diameter increasing portion (band portion), 302 ... Electric wire supporting fitting.

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Toshio Mori 1 Horiyamashita, Hadano City, Kanagawa Prefecture Hitachi, Ltd. Kanagawa Plant

Claims (4)

[Claims] 1. An electronic device having a housing and an electric wire drawn into the housing, wherein an outer diameter increasing portion is provided near a portion of the electric wire fixed to the housing, and the electric wire is provided in the housing. A supporting structure for an electric wire, characterized in that a supporting tool having a rectangular notch having a width larger than an outer diameter of the electric wire and smaller than an outer diameter of the outer diameter increasing portion is provided for suspending the electric wire. 2. An electric wire according to claim 1, wherein an outer diameter increasing portion is provided for the purpose of suspending it on a part of a housing of the electronic device. 3. The electric wire support according to claim 1, which has a rectangular cutout for suspending an electric wire having an outer diameter increasing portion. 4. A housing structure comprising the electric wire support according to claim 3.