JP2008041479A - Holding device of braided shield-covered wire - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a holding device of a braided shield-covered wire having a simple structure because part of a tip opening of a braided shield can be bundled, crimped and fixed by cut-and-raised piece parts, advantageous in terms of cost, and improved in working efficiency as well. <P>SOLUTION: Since a braiding treatment is enabled by bundling a part of the tip opening 6a of the braided shield 6, this holding device of a braided shield-covered wire does not require a separate member for executing the braiding treatment, can be formed into a simple structure, and is advantageous in terms of cost. Since a bundling part 6b of the braided shield 6 can be solidly fastened by crimping and deforming the pair of cut-and-raised piece parts 4 and 5 into a semi-circular shape, the braided shield 6 can be tightly held and fixed to a mounting plate 3. The fixing work of the braided shield 6 is accelerated, productivity is improved by good working efficiency, and the holding device can be suitably mounted in a production model vehicle. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a braided shield covered electric wire in which a covered electric wire is covered with a braided shield, and more particularly to a braided shield covered electric wire holding device for connecting electrical components of a vehicle.

Generally, in a braided shield-coated electric wire, a sheath at the tip is peeled to expose a braided shield made of conductive metal, and a braid that is cut to a predetermined length and then folded back is disposed on the sheath (for example, Patent Document 1 and 2).
At this time, in Patent Document 1, the shield pipe is inserted into the sheath by being pushed in, and the braid is provided between the shield pipe and the sheath. In Patent Document 2, a braid is expanded in a trumpet shape using a wire as an expanding member, and a cap is pressed as a conductive member on the expanded braid, and is sandwiched between a wire and a shielded electric wire.

Further, in the braided shielded wire connector, the insertion portion positioned in the main body nut and the cylindrical portion nut is formed in a tapered shape toward the distal end portion of the main body, and is inserted between the braided shield and the sheath (for example, And Patent Document 3). By screwing the cylindrical nut into the main nut in this state, the diameter of the cylindrical portion is reduced and the claw portion is bitten into the sheath so that it can be securely connected to the braided shielded wire connector with a different sheath diameter. Yes.
JP 2002-262429 A JP 2002-343143 A JP 2000-317552 A

Patent Documents 1 and 2 both describe a configuration in which a braid is folded and braided, but a configuration for holding a braided shield and a covered electric wire is not considered.
In patent document 3, it has the characteristics in the connection of the braided shield electric wire connectors rather than the structure which hold | maintains a braided shield and a covered electric wire. For this reason, Patent Document 3 requires a large number of parts such as a male screw part, a conical part, and an insertion part in addition to the main body nut and the cylindrical part nut, and there is a disadvantage that the entire structure is complicated and the cost is high.

  The present invention has been made in consideration of the above circumstances, and its purpose is that a part of the opening portion of the braided shield can be bundled and caulked and fixed by the cut and raised pieces, so that a simple structure is required and work is advantageous in terms of cost. An object of the present invention is to provide a holding device for a shield-coated electric wire that improves the performance.

(About claim 1)
In a braided shield covered electric wire holding device, a braided shield formed by weaving fine wires into a sleeve shape is provided. The braided shield covered electric wire is configured by covering the braided shield over the covered electric wire. A braided shield is disposed on the mounting plate, and an opening is formed at a predetermined position. The pair of cut and raised pieces are formed at or near the opening peripheral edge of the opening of the placing plate, and are provided so as to bundle and sandwich a part of the tip opening of the braided shield. The braided shield is tightly gripped and fixed by caulking and deforming the pair of raised and raised pieces into a semicircular arc shape.

Since a braiding process can be performed by bundling a part of the opening at the front end of the braided shield, a separate member for performing the braiding process is not required, and a simple structure is required, which is advantageous in terms of cost.
By caulking and deforming the pair of cut and raised pieces into a semicircular arc shape, the bundled part of the braided shield is firmly tightened, so that the braided shield can be tightly gripped and fixed to the mounting plate. The braided shield can be fixed by caulking and deforming the cut-and-raised piece, and the work is quick and the productivity is improved by good workability, which is suitable for mounting on a mass-produced vehicle.
Since the tip opening of the braided shield has a trumpet shape that spreads outward even after a part of the braided shield is bundled, it is easy to insert the covered electric wire into the braided shield from the tip opening so that the workability can be improved. It also becomes.

(About claim 2)
The pair of cut and raised pieces are provided on the mounting plate at the front and rear along the longitudinal direction of the braided shield. The pair of cut and raised pieces at the front is set smaller than the pair of cut and raised pieces at the rear. In this case, since the braided shield is fixed in two places by a pair of front and rear cut and raised pieces, it is possible to prevent the fixing force for the braided shield from being dispersed in a large and small manner and being concentrated on one place. .

(Claim 3)
The pair of cut-and-raised pieces are punched out inside and have an outer contour of a rectangular frame shape. For this reason, the caulking force with respect to the cut and raised piece portion can be small, and the material of the cut and raised piece portion can be saved and used for cost reduction.

(About claim 4)
The covered electric wire is led out from the mounting plate and connected to the in-vehicle interior component. In this case, as described in claim 1, since it is advantageous in terms of cost with a simple structure, it is suitable as a holding device for a braided shield covered electric wire to be mounted on a vehicle for mass production.

(Claim 5)
Inside the cut and raised piece portion, a small protrusion that presses against the braided shield when the cut and raised piece portion is caulked is formed by cutting and raising. In this case, as the cut and raised pieces are caulked, a part of the braided shield bundled in contact with the small protrusions in a pressed state, so that the braided shield's restraining force by the cut and raised pieces becomes stronger and fixed. The state is greatly improved.

  In the braided shield covered electric wire holding device according to the present invention, braiding can be performed by bundling a part of the front end opening of the braided shield, so there is no need for a separate member for performing the braiding, and the structure is simple. This is advantageous in terms of cost. By caulking and deforming the pair of cut and raised pieces into a semicircular arc shape, the bundled part of the braided shield is firmly tightened, so the braided shield is tightly gripped and fixed. Fixing the braided shield is quick and the productivity is improved by good workability, which is suitable for mounting on a mass-produced vehicle.

  A braided shield covered wire holding device 1 according to a first embodiment of the present invention will be described with reference to FIGS. 1 and 2. In FIG. 1, a mounting plate 3 extending from a connector plate 2 is made of an elastic body such as a metal plate, and is, for example, a rectangular opening surrounded by front and rear side portions 3a and 3b and left and right side portions 3c and 3d. 3A. Of the opening peripheral edge of the opening 3A, for example, a pair of cut and raised pieces 4 and 5 are formed by cutting up and down at the center of the rear side 3b. The cut and raised pieces 4 and 5 are not limited to the opening peripheral edge of the opening 3A, and may be provided in the vicinity thereof.

  The braided shield 6 is formed in a sleeve shape by weaving a large number of fine metal wires in a mesh shape, and is configured to allow a plurality of covered electric wires 7, 8, 9 to be inserted therein. The braided shield 6 is provided with a bundling portion 6b having a predetermined length T by bundling a part of the front end opening 6a. The binding portion 6b of the braided shield 6 has a width dimension w and a predetermined thickness dimension, and is disposed so as to be positioned between the cut and raised pieces 4 and 5.

  In this state, the braided shield 6 is placed by crimping and deforming the cut and raised pieces 4 and 5 into a semicircular arc shape using a crimper (not shown) of a terminal crimping device or the like as shown in FIG. The plate 3 is tightly gripped and fixed.

  The covered electric wires 7, 8, 9 have terminals (not shown) provided at the rear end, and are connected to other covered electric wires (not shown) by a storage portion (not shown) provided on the connector plate 2. It is caulking. Thereby, the covered electric wires 7, 8, and 9 can be connected to other covered electric wires, and can be electrically connected to, for example, an in-vehicle interior component (not shown). The covered electric wires 7, 8, and 9 are covered with a flexible insulating tube 10 over almost the entire length in order to ensure electrical insulation and ensure safety.

In the above configuration, the braiding process can be performed by bundling a part of the front end opening 6a of the braided shield 6. Therefore, no separate member for performing the braiding process is required, and a simple structure is sufficient, which is advantageous in terms of cost. .
By caulking and deforming the pair of raised and raised pieces 4 and 5 into a semicircular arc shape, the binding portion 6b of the braided shield 6 is firmly tightened, so that the braided shield 6 is tightly gripped and fixed to the mounting plate 3. be able to. The braided shield 6 can be fixed by caulking and deforming the cut and raised pieces 4 and 5, and the work is quick and the productivity is improved by good workability, which is suitable for mounting on a mass-produced vehicle. is there.
Since the leading end opening 6a of the braided shield 6 has a trumpet shape that expands outward even after the binding portion 6b is formed, the covered wires 7, 8, 9 can be easily inserted into the braided shield 6 from the leading end opening 6a. To help improve workability.

  FIG. 3 shows a second embodiment of the present invention. The difference between the second embodiment and the first embodiment is that, as shown in FIG. 3A, the inside of the cut and raised pieces 4 and 5 are punched, and the outer contours 4a and 5a of the cut and raised pieces 4 and 5 are rectangular. It was to make a frame shape. In the second embodiment, as shown in FIG. 3B, when the cut and raised pieces 4 and 5 are caulked and deformed, the caulking force is small, and the crimping force of the crimper can be reduced. .

FIG. 4 shows a third embodiment of the present invention. The third embodiment is different from the first embodiment in that the cut and raised pieces 4 and 5 are installed on the mounting plate 3 one by one along the longitudinal direction of the braided shield 6 as shown in FIG. It is that. The pair of cut and raised pieces 4 and 5 at the front are set smaller than the pair of cut and raised pieces 4 and 5 at the rear.
In this case, as shown in FIG. 4 (b), the braided shield 6 is fixed in two places by the pair of front and rear cut and raised pieces 4, 5, so that the fixing force with respect to the braided shield 6 is increased or decreased. It is possible to prevent them from being distributed and concentrated in one place.
As in the second embodiment, the insides of the cut and raised pieces 4 and 5 provided in pairs at the front and rear are punched out so that the outer contours 4a and 5a of the cut and raised pieces 4 and 5 form a rectangular frame shape. Good.

FIG. 5 shows a fourth embodiment of the present invention. The fourth embodiment differs from the first embodiment in that the cut and raised pieces 4 and 5 are provided on the left side 3c of the opening 3A in the mounting plate 3 as shown in FIG.
In this case, as shown in FIG. 5 (b), the cut-and-raised position of the cut-and-raised pieces 4 and 5 can be changed according to the use situation and the like, and a design freedom can be obtained with respect to the fixed position of the braided shield 6. It is done.

FIG. 6 shows a fifth embodiment of the present invention. Example 5 differs from Example 1 in that the cut and raised pieces 4 and 5 are divided into left and right sides 3c and 3d of the opening 3A in the mounting plate 3, as shown in FIG. It is provided. That is, as shown in FIG. 6B, the binding portions 6m and 6n of the braided shield 6 are divided into left and right parts, and the binding portion 6m is fixed by the left cut and raised pieces 4 and 5, and the binding portion 6n is fixed to the right side. Are fixed by the cut and raised pieces 4 and 5.
In this case, as in the fourth embodiment, the degree of freedom in designing the fixed position of the braided shield 6 can be obtained by changing the cut and raised positions of the cut and raised pieces 4 and 5.

FIG. 7 shows a sixth embodiment of the present invention. Example 6 differs from Example 1 in that cut and raised pieces 4 and 5 are provided on the right side 3d of the opening 3A in the mounting plate 3 as shown in FIGS. 7 (a) and 7 (b). That is.
In this case, as in the fourth embodiment, the degree of freedom in designing the fixed position of the braided shield 6 can be obtained by changing the cut and raised positions of the cut and raised pieces 4 and 5.

FIG. 8 shows a seventh embodiment of the present invention. Example 7 differs from Example 6 in that the cut and raised pieces 4 and 5 are arranged in a form rotated by 90 degrees on the mounting plate 3 as shown in FIGS. 8A and 8B. That is.
Also in this case, as in the fourth embodiment, the degree of freedom in designing the fixed position of the braided shield 6 can be obtained by changing the cut and raised positions of the cut and raised pieces 4 and 5.

FIG. 9 shows an eighth embodiment of the present invention. Example 8 differs from Example 1 in that, as shown in FIGS. 9A and 9B, the cut and raised pieces 4 and 5 are arranged at the right end of the front side 3 a of the opening 3 A in the mounting plate 3. It was established in.
Also in this case, as in the fourth embodiment, the degree of freedom in designing the fixed position of the braided shield 6 can be obtained by changing the cut and raised positions of the cut and raised pieces 4 and 5.

FIG. 10 shows Embodiment 9 of the present invention. Example 9 differs from Example 1 in that the cut and raised pieces 4 and 5 are placed on the front side 3a of the opening 3A in the mounting plate 3 on the left and right sides as shown in FIGS. 10 (a) and 10 (b). It is that it was provided separately. That is, the binding portions 6p and 6q of the braided shield 6 are divided into left and right portions, and the binding portion 6p is fixed by the left cut and raised pieces 4 and 5, and the binding portion 6q is fixed by the right cut and raised pieces 4 and 5. ing.
Also in this case, as in the fifth embodiment, the degree of freedom in designing the fixed position of the braided shield 6 can be obtained by changing the cut and raised positions of the cut and raised pieces 4 and 5.

  FIG. 11 shows a tenth embodiment of the present invention. The tenth embodiment differs from the first embodiment in that, as shown in FIGS. 11A and 11B, the cut and raised pieces 4 and 5 are arranged in front of the front side 3 a of the opening 3 A in the mounting plate 3. It is that it was divided into two places in the vicinity.

That is, the left cut and raised pieces 4 and 5 are inclined by a predetermined angle θ1 with respect to the axis M of the braided shield 6, and the right cut and raised pieces 4 and 5 have a predetermined angle with respect to the axis M. It is provided in a state inclined by θ2. The binding portions 6r and 6s of the braided shield 6 are divided into left and right parts, the binding portion 6r is fixed by the left cut and raised pieces 4 and 5, and the binding portion 6s is fixed by the right cut and raised pieces 4 and 5. .
Also in this case, as in the fifth embodiment, the degree of freedom in designing the fixed position of the braided shield 6 can be obtained by changing the cut and raised positions of the cut and raised pieces 4 and 5. The inclination angles θ1 and θ2 of the cut and raised pieces 4 and 5 with respect to the axis M of the braided shield 6 may be the same or different.

FIG. 12 shows Example 11 of the present invention. The difference between Example 11 and Example 1 is that cut and raised pieces 4 and 5 are provided so as to be located in the opening 3A from the front side 3a, as shown in FIGS. In addition, it is formed so as to be located in the opening 3A from the rear side 3b.
In Example 11, the braided shield 6 is fixed in two places by the pair of front and rear cut and raised pieces 4 and 5, so that the fixing force for the braided shield 6 is dispersed and concentrated in one place. Can be prevented.

FIG. 13 shows a twelfth embodiment of the present invention. Example 12 differs from Example 1 in that, as shown in FIGS. 13 (a) and 13 (b), when the cut and raised pieces 4 and 5 are formed, they are located inside the cut and raised pieces 4 and 5. That is, the small protrusions 4j and 5j are cut up.
In this case, the binding portion 6b of the braided shield 6 is entangled with the small protrusions 4j and 5j in a pressed state, so that the binding force of the binding portion 6b by the cut and raised pieces 4 and 5 after caulking is further strengthened and the fixed state is remarkably increased. improves.

(Modification)
(A) In Examples 1 to 10, the cut and raised pieces 4 and 5 are directly caulked to the bundling portion 6b (6m, 6n, 6p, 6q, 6r, and 6s), but a buffer such as a thin rubber piece is formed. The material may be caulked with a material interposed.
(B) The insulating tube 10 covering the covered electric wires 7, 8 and 9 may be provided as necessary, and may be omitted if unnecessary.
(C) The opening 3A formed by the mounting plate 3 is not limited to a rectangular shape, and may be a triangle, a circle, a polygon, or a trapezoid.

  In the braided shield covered electric wire holding device, the braiding process can be performed by bundling a part of the front end opening of the braided shield. For this reason, a separate member for performing the braiding process is not required, and a simple structure is sufficient, which is advantageous in terms of cost. Fixing the braided shield is quick and the productivity is improved by good workability, which is suitable for mounting on a mass-produced vehicle. With these excellent effects, it is possible to encourage the demand for increased productivity and to apply widely to the machinery industry through the distribution of related parts.

It is a disassembled perspective view of the holding apparatus of a braided shield covering electric wire (Example 1). (Example 1) which is an assembly | attachment perspective view of the holding | maintenance apparatus of a braided shield covering electric wire. (A) is a disassembled perspective view of the braided shield covered electric wire holding device, and (b) is an assembled perspective view of the braided shield covered electric wire holding device (Example 2). (A) is an exploded perspective view of a braided shield covered electric wire holding device, and (b) is an assembled perspective view of the braided shield covered electric wire holding device (Example 3). (A) is a perspective view of the braided shield covered electric wire holding device, and (b) is an assembled perspective view of the braided shield covered electric wire holding device (Example 4). (A) is a perspective view of the braided shield covered electric wire holding device, and (b) is an assembled perspective view of the braided shield covered electric wire holding device (Example 5). (A) is a perspective view of the braided shield covered electric wire holding device, and (b) is an assembled perspective view of the braided shield covered electric wire holding device (Example 6). (A) is a perspective view of the braided shield covered electric wire holding device, and (b) is an assembled perspective view of the braided shield covered electric wire holding device (Example 7). (A) is a perspective view of the braided shield covered electric wire holding device, and (b) is an assembled perspective view of the braided shield covered electric wire holding device (Example 8). (A) is a perspective view of the braided shield covered electric wire holding device, and (b) is an assembled perspective view of the braided shield covered electric wire holding device (Example 9). (A) is a perspective view of the braided shield covered electric wire holding device, and (b) is an assembled perspective view of the braided shield covered electric wire holding device (Example 10). (A) is a disassembled perspective view of the braided shield covered electric wire holding device, and (b) is an assembled perspective view of the braided shield covered electric wire holding device (Example 11). (A) is a cross-sectional view of the cut and raised piece portion, and (b) is a cross-sectional view of the cut and raised piece portion after caulking (Example 12).

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Braided shield covering electric wire holding device 2 Connector plate 3 Mounting plate 3A Opening 4, 5 Cut and raised pieces 4a, 5a Outer contour 4j, 5j Small protrusion 6 Braided shield 6a Tip opening 6b, 6m, 6n, 6p, 6q, 6r, 6s Bundling part (part of the braided shield bundled)
7, 8, 9 Covered wire

Claims (5)

In a braided shield covered electric wire holding device for holding a braided shield covered electric wire provided by covering a covered electric wire with a braided shield formed by weaving fine wires into a sleeve shape,
A mounting plate in which the braided shield is arranged and an opening is formed at a predetermined position;
A pair of cut-and-raised pieces that are formed at or near the opening peripheral edge of the opening of the mounting plate, and for binding and sandwiching a part of the tip opening of the braided shield;
The braided shield covered electric wire holding device, wherein the braided shield is tightly gripped and fixed by caulking and deforming the pair of cut and raised pieces into a semicircular arc shape.   The pair of cut and raised pieces are provided on the mounting plate at the front and rear along the longitudinal direction of the braided shield, and the pair of cut and raised pieces at the front is more than the pair of cut and raised pieces at the rear. A braided shield-covered electric wire holding device, characterized in that it is set to be smaller.   The braided shield-covered electric wire holding device according to claim 1 or 2, wherein the pair of cut and raised pieces are punched inside and have a rectangular frame shape on the outer contour.   The braided shield covered electric wire holding device according to any one of claims 1 to 3, wherein the covered electric wire is led out from the mounting plate and connected to an in-vehicle interior part. The small protrusion which press-contacts the said braided shield at the time of caulking of the said cut-and-raised piece part is formed in the inside of the said cut-and-raised piece part by cut-and-raised. Braided shield covered wire holding device.

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