JP2833386B2 - How to shield wire harness - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wire harness shielding method for providing an electromagnetic shield outside a wire harness.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 6, when an electromagnetic shield is applied to the outside of a wire harness 3 in which connectors 2 are connected to both ends of several wires 1 bundled by tape or the like, as shown in FIG. As described above, the electromagnetic shield of the wire harness 3 is performed by inserting the wire harness 3 into the braided tube 4 prepared in advance.

A technique for inserting a wire harness into a braided tube is disclosed in, for example, Japanese Utility Model Laid-Open No. 3-120624.

[0004]

However, in the conventional shielding method, it is necessary to insert the wire harness 3 into the braided tube 4 one by one, which is very troublesome.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and has as its object to make it possible to electromagnetically shield a wire harness very easily.

[0006]

According to a method of shielding a wire harness according to the present invention, connectors are connected to both ends of several bundled electric wires by a braiding machine for forming a braid outside long members such as electric wires. After continuously braiding the braids outside the plurality of wire harnesses, the braid between the adjacent wire harnesses is cut to separate the respective wire harnesses.

[0007]

In the present invention, the braiding machine continuously braids a plurality of wire harnesses, and then cuts the braid between adjacent wire harnesses, so that each of the wire harnesses is separated by cutting the braid. The electromagnetic shield of the wire harness can be performed simply by itself, and the electromagnetic shield of the wire harness can be extremely easily performed without the trouble as in the related art.

[0008]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an explanatory view of a step in the course of one embodiment of a method for shielding a wire harness according to the present invention;
3 is a partial perspective view of FIG. 2, FIG. 4 is an explanatory view of a process different from FIG. 1, and FIG. 5 is an explanatory view of a wire harness that is electromagnetically shielded.

A wire harness 3 is continuously inserted from below a braided portion of a braiding machine 11 having a well-known configuration for forming a braid on the outside of a long member such as an electric wire (broken arrows in FIG. 1). 3. Braid the braid.

Incidentally, the braiding machine itself is disclosed in, for example,
It is well known as disclosed in Japanese Patent Publication No. 214489, and there are various configurations other than the configuration described in this publication, and the braiding machine 11 in FIG. 1 is also a known configuration. To explain, as shown in FIG.
A plurality of strand reels 14 are disposed along the inner periphery of the short cylindrical frame 13, and each strand reel 14 simultaneously rotates in the same direction along the inner periphery of the frame 13 to form a braided portion. Is formed, and the braid 15 is wound up by a take-up reel (not shown) via a guide reel 16 provided above the frame 13.

The braided portion of the braiding machine 11 has a cylindrical body 1 fixedly installed at the center of the frame 13 as shown in FIG.
As shown in FIG. 3, the wire harness 3 is inserted into the inside of the cylindrical body 17 from below, and the connector 2 is mounted on the outside of the wire harness 3 by rotating each wire reel 14 above the cylindrical body 17. A braid 15 is formed.

Next, among the braids 15 wound on the take-up reel as described above, the braid 15 between the adjacent wire harnesses 3 is cut as shown in FIG. 4 (1 in FIG. 4).
As shown in FIG. 5, as shown in FIG. 5, each wire harness 3 is separated in a state where both connectors 2 are also covered with the braid 15, and then both ends of the braid 15 are loosened to expose both connectors 2. The wire harness 3 in which only the electric wire portion is covered with the braid 15 and electromagnetically shielded is completed.

Therefore, after the braid 15 is continuously formed on the plurality of wire harnesses 3 by the braiding machine 11, the electromagnetic shielding of the wire harness 3 is performed only by cutting the braid 15 between the adjacent wire harnesses 3. As a result, the labor can be greatly reduced as compared with the conventional case where the wire harness is inserted through the braided tubes one by one.

The structure of the braiding machine 11 is not limited to the above.

[0015]

As described above, according to the wire harness shielding method of the present invention, a braid is continuously formed on a plurality of wire harnesses by a braiding machine, and the braid between adjacent wire harnesses is cut. In addition, the electromagnetic shielding of the wire harness can be performed much more easily than in the past, and the work efficiency can be improved.

[Brief description of the drawings]

FIG. 1 is an explanatory view of a step in the middle of an embodiment of a method for shielding a wire harness according to the present invention.

FIG. 2 is a perspective view of FIG.

FIG. 3 is a perspective view of a part of FIG. 2;

FIG. 4 is an explanatory view of a step different from FIG. 1;

FIG. 5 is an explanatory diagram of the wire harness after the process of FIG. 4;

FIG. 6 is an explanatory diagram of a general wire harness.

FIG. 7 is an explanatory view of a conventional wire harness shielding method.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Electric wire 2 Connector 3 Wire harness 11 Braiding machine 15 Braid

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-4-179007 (JP, A) JP-A-4-214489 (JP, A) JP-A 62-34714 (JP, U) (58) Field (Int.Cl. ⁶ , DB name) H01B 11/06 H01B 7/00 D07B 7/14

Claims (1)

(57) [Claims] 1. A braiding machine for forming a braid on the outside of a long member such as an electric wire, the braid being continuously connected to the outside of a plurality of wire harnesses formed by connecting connectors to both ends of several bundled electric wires. A method of shielding a wire harness, comprising, after braiding a braid, cutting the braid between adjacent wire harnesses to separate the respective wire harnesses.