JP7760731B2 - Wire harness - Google Patents

Description

The present invention relates to a wire harness.

As disclosed in Patent Document 1, wire harnesses having an external conductor for shielding electromagnetic waves are well known. The external conductor has, for example, a substantially cylindrical conductor tube made of aluminum. Aluminum conductor tubes have high rigidity. Therefore, if the installation space is limited, the conductor tube may restrict the positioning, making it impossible to install the wire harness.

Patent Document 2 discloses a wire harness that uses a braided shield. This wire harness has a water stop valve that fills the gap between the electric wire and the grommet. The braided shield is arranged to cover the outer periphery of the water stop valve. A water stop adhesive member is attached to the outer periphery of the braided shield. The braided shield is flexible. Therefore, if the installation space is narrow, the wire harness can be bent and installed. Therefore, by adopting the wire harness of Patent Document 2, it is possible to install the wire harness even in a narrow installation space.

JP 2015-53771 A JP 2016-119821 A

However, when a wire harness is bent, depending on the type of bending load, the adhesion between the stopcock and braided shield, or the adhesion between the braided shield and the water-stopping adhesive material, may be reduced. If this occurs, gaps that did not exist originally may be created by the bending, and fluids such as water may flow into the interior through these gaps. Therefore, there was a need to improve the water-stopping properties of bendable wire harnesses.

The object of this disclosure is to provide a wire harness that can improve watertightness.

A wire harness that solves the above problem comprises an electric wire for transmitting electricity, a grommet that is attached to an opening through which the electric wire passes and that houses the electric wire inside, a stop valve that is provided to stop water from entering the inside of the grommet and through which the electric wire passes, a shielding material attached around the stop valve, a first adhesion layer that is attached to the outer periphery of the shielding material to adhere the shielding material to the stop valve, and a second adhesion layer that is attached to the outer periphery of the first adhesion layer to adhere the first adhesion layer to the shielding material.

This disclosure can improve the watertightness of wire harnesses.

FIG. 1 is a perspective view of a wire harness. FIG. 2 is a front view of the wire harness. FIG. 3 is an exploded perspective view of the wire harness. FIG. 4 is a cross-sectional view taken along line IV-IV shown in FIG. FIG. 5 is a cross-sectional view taken along line VV shown in FIG. 6(a) to 6(d) are flow charts showing the manufacturing flow of a wire harness. FIG. 7 is a diagram showing the operation of the wire harness. 8(a) to 8(d) are flow charts showing the manufacturing flow of a wire harness.

First, embodiments of the present disclosure will be listed and described.
[1] A wire harness according to the present disclosure includes an electric wire for transmitting electricity, a grommet attached to an opening through which the electric wire passes and which houses the electric wire inside, a stop valve provided to stop water from entering the inside of the grommet and through which the electric wire passes, a shielding material attached around the stop valve, a first adhesion layer attached to the outer periphery of the shielding material to adhere the shielding material to the stop valve, and a second adhesion layer attached to the outer periphery of the first adhesion layer to adhere the first adhesion layer to the shielding material.

With this configuration, the first adhesive layer adheres the shielding material to the stopcock, and the second adhesive layer adheres the first adhesive layer to the shielding material. In this way, the two layers, the first adhesive layer and the second adhesive layer, adhere the components together, making it less likely for gaps to form between the components. This improves the watertightness of bendable wire harnesses.

[2] In the above [1], the shielding material is a braided shield formed from wires, and butyl rubber is used in at least a portion of the first adhesive layer. With this configuration, the butyl rubber penetrates between the stitches of the braided shield, allowing the butyl rubber to firmly adhere to the shielding material. This improves adhesion between the stop valve and the shielding material, further contributing to improved watertightness.

[3] In the above [2], the first adhesive layer is a sheet-like butyl-based rubber sheet that uses butyl-based rubber in at least part thereof, and the butyl-based rubber sheet is wound around the electric wire multiple times while shifting its position along the axial direction of the electric wire, and is attached to the braided shield by applying pressure with a jig so that it is in close contact with the braided shield. With this configuration, the butyl-based rubber sheet can be attached around the braided shield by the simple process of wrapping the butyl-based rubber sheet around the braided shield. Furthermore, since the butyl-based rubber sheet is applied with a jig after attachment, it can also be firmly fitted to the braided shield.

[4] In any of [1] to [3] above, the second adhesive layer is a tape wound around the first adhesive layer multiple times while shifting its position along the axial direction of the electric wire. This configuration suffices with the simple task of wrapping the tape around the first adhesive layer.

[5] In any of [1] to [4] above, the grommet has an annular seal on its inner surface that seals the gap between the grommet and the second adhesive layer. This configuration improves the watertightness between the grommet and the second adhesive layer.

[6] In any of [1] to [5] above, the stop valve has a hole through which the electric wire passes, and the hole has an annular seal on its inner surface that seals the gap between the electric wire and the stop valve. This configuration improves the watertightness between the electric wire and the stop valve.

[7] In any of [1] to [6] above, the grommet has a tubular portion that houses an assembly including the stop valve, the electric wire, the shielding material, the first adhesive layer, and the second adhesive layer, and a seat portion that supports the base end of the tubular portion. This configuration makes it easier for the wire harness to change shape by bending the tubular portion around the seat portion. This makes it easier to bend the wire harness.

[8] In any of [1] to [7] above, the seat has a water-stopping wall formed around the entire edge. This configuration prevents fluids such as water from entering the seat, further improving water-stopping properties.

(Details of the embodiments of the present disclosure)
Specific examples of the wire harness of the present disclosure will be described below with reference to the drawings. Note that the present invention is not limited to these examples, but is defined by the claims, and is intended to include all modifications within the meaning and scope equivalent to the claims. In each drawing, for the convenience of explanation, some components may be exaggerated or simplified. Furthermore, the dimensional proportions of each part may differ from the actual ones.

(Overview of Wire Harness 1)
As shown in FIG. 1 , the wire harness 1 includes an electric wire 2 for transmitting electricity. The electric wire 2 is, for example, a coated electric wire in which a linear core wire is covered with an insulating coating. The core wire may be, for example, either a stranded wire or a single-core wire. The single-core wire is, for example, a columnar conductor having a solid interior structure or a tubular conductor having a hollow interior structure. The material of the core wire is, for example, a copper-based or aluminum-based metal material. The insulating coating, for example, covers the outer circumferential surface of the core wire over the entire circumferential direction. The insulating coating is made of, for example, an insulating resin material. The number of electric wires 2 is not limited to multiple, and may be one.

As shown in Figures 1 and 2, the wire harness 1 includes a grommet 5 that protects the electric wires 2 that are passed through an opening 4 (shown in Figure 2) of the attachment point 3. The grommet 5 is attached to the opening 4 through which the electric wires 2 pass, and the electric wires 2 are housed inside. The grommet 5 has a tubular portion 6 through which the electric wires 2 pass, and a seat portion 8 that supports a base end 7 of the tubular portion 6. The grommet 5 is attached to the opening 4 via a bracket 9. The bracket 9 is fixed to the attachment point 3, for example, by a fastening portion 10. The fastening portion 10 is, for example, a bolt. The attachment point 3 is, for example, the body of a vehicle.

The grommet 5 is positioned, for example, at the location separating the indoor and outdoor areas at the attachment point 3. In this example, the tubular portion 6 of the grommet 5 is positioned on the indoor side, and the seat portion 8 is positioned on the outdoor side. The base end 7 of the grommet 5 is provided with a recess 7a that facilitates bending of the grommet 5.

As shown in Figure 3, the seat portion 8 has a plate-shaped main body 13 that rests on the bracket 9, and a flange 14 provided on the back surface of the main body 13. The flange 14 is disposed on the back surface of the main body 13. The grommet 5 is attached to the attachment point 3 by engaging the flange 14 with the periphery of a hole 15 in the bracket 9. The bracket 9 has multiple positioning holes 17 for inserting pins 16 that protrude from the back surface of the seat portion 8 (main body 13). The bracket 9 has holes 18 at both ends for inserting the fastening portions 10.

(Water-stopping structure for the wire 2 in the grommet 5)
4 and 5 , an assembly 22 for waterproofing between an inner peripheral surface 21 of the grommet 5 and the electric wire 2 is housed inside the grommet 5. The assembly 22 includes, for example, a water stop valve 23, a shielding material 24, a first adhesive layer 25, and a second adhesive layer 26. In this example, the assembly 22 is housed in the tubular portion 6 of the grommet 5. The assembly 22 prevents fluids such as water from entering the grommet 5.

The stop valve 23 is provided to stop water from entering the inside of the grommet 5, and is attached so that the electric wire 2 passes through it. The stop valve 23 is, for example, a rubber stopper. The stop valve 23 has holes 27 through which the electric wire 2 passes. In this example, the holes 27 extend along the axial direction of the electric wire 2 (the Z-axis direction in Figure 4, etc.), and three holes 27 are formed. The multiple holes 27 are arranged at equal angular intervals around the axis P of the grommet 5 (see Figure 4).

As shown in Figure 5, the hole 27 has an annular seal portion 30 on its inner surface that seals the gap between the hole 27 and the electric wire 2. In this example, multiple seal portions 30 (three in this example) are provided near the center in the axial direction of the electric wire 2 (the Z-axis direction in Figure 5). The seal portions 30 are, for example, lip-type seals that assume a sealed state by elastically deforming.

The shielding material 24 is attached around the stop valve 23. The shielding material 24 surrounds the stop valve 23 from all sides. The shielding material 24 is, for example, a braided shield 32 formed from wires 31 (see Figure 6). The wires 31 are, for example, metal wires. The shielding material 24 is, for example, flexible, and prevents electrical noise and crosstalk and improves strength against abrasion.

The first adhesion layer 25 is attached to the outer periphery of the shielding material 24, thereby adhering the shielding material 24 to the stopcock 23. The first adhesion layer 25 is made, for example, of at least a portion made of butyl-based rubber. In this example, the first adhesion layer 25 is a sheet-like butyl-based rubber sheet 34 made of at least a portion made of butyl-based rubber. The butyl-based rubber sheet 34 is wound around the wire 2 multiple times, for example, while shifting its position along the axial direction (Z-axis direction in Figure 5) of the wire 2. After wrapping, the butyl-based rubber sheet 34 is pressurized to conform to the braided shield 32.

The second adhesive layer 26 is attached to the outer periphery of the first adhesive layer 25, thereby adhering the first adhesive layer 25 to the shielding material 24. The second adhesive layer 26 is, for example, a tape 35 wound around the wire 2 in multiple turns, with the positions shifted along the axial direction (Z-axis direction in Figure 5) of the wire 2. The tape 35 preferably has high flexibility, high insulation properties, heat resistance, and cold resistance. The tape 35 is, for example, a vinyl tape.

(Other water-stopping structures)
As shown in Fig. 5, the grommet 5 has, on its inner surface, an annular seal portion 38 that seals the gap between the grommet 5 and the second adhesive layer 26. In this example, a plurality of seal portions 38 (three in this example) are formed at equal intervals along the axial direction of the electric wire 2 (the Z-axis direction in Fig. 5). The seal portion 38 is, for example, a protrusion that protrudes a predetermined amount from the inner surface of the grommet 5. The seal portion 38 is, for example, a lip-type seal that assumes a sealed state by elastic deformation.

As shown in Figures 1 to 3 and 5, the seat 8 has a water-stopping wall 39 formed around the entire edge. The wall 39 is formed in a shape that protrudes diagonally from the main body 13 of the seat 8. The wall 39 prevents fluids such as water from entering the upper surface (surface) of the seat 8 from the surrounding area.

Next, the operation of the wire harness 1 of this embodiment will be described.
(Assembly of wire harness 1)
As shown in Figure 6(a), a shielding material 24 (in this example, a braided shield 32) is attached around the stop valve 23 with the electric wire 2 attached to the hole 27. The shielding material 24 is attached so as to cover both the electric wire 2 and the stop valve 23. In other words, the shielding material 24 is attached to both the stop valve 23 and the electric wire 2 near the stop valve 23.

As shown in Figure 6(b), after the shielding material 24 is attached, the first adhesive layer 25 is attached around the shielding material 24. If the first adhesive layer 25 is a butyl-based rubber sheet 34, the butyl-based rubber sheet 34 is wrapped around the shielding material 24 multiple times. Specifically, the butyl-based rubber sheet 34 is wrapped around the shielding material 24 multiple times while shifting its position along the axial direction of the electric wire 2 (the direction of arrow A1 in Figure 6(b)) so that it overlaps (e.g., half-laps) with the butyl-based rubber sheet 34 on the adjacent circumference by a predetermined amount.

As shown in Figure 6(c), after the butyl-based rubber sheet 34 is wrapped around the shield, it is pressed by a jig 41. Specifically, the butyl-based rubber sheet 34 is pressed against the braided shield 32 by rolling it with a roller 42 serving as the jig 41. As a result, when the shielding material 24 is a braided shield 32, the butyl-based rubber sheet 34 penetrates into the gaps between the stitches of the braided shield 32, and the butyl-based rubber sheet 34 fits well with the braided shield 32.

As shown in Figure 6(d), after the butyl-based rubber sheet 34 is pressed, the second adhesive layer 26 is attached around the first adhesive layer 25. If the second adhesive layer 26 is tape 35, the tape 35 is wrapped around the first adhesive layer 25 multiple times. Specifically, the tape 35 is wrapped around the first adhesive layer 25 multiple times while shifting its position along the axial direction of the wire 2 (the direction of arrow A2 in Figure 6(d)) so that it overlaps (e.g., half-laps) with the tape 35 on the adjacent circumference by a predetermined amount. It is preferable that the tape 35 be attached so as to cover the entire shielding material 24. The assembly 22 is assembled as described above.

As shown in Figure 5, after assembly 22 is assembled, this assembly 22 is inserted into the inside of grommet 5. In this example, assembly 22 is inserted into grommet 5 so that second adhesive layer 26 contacts seal portion 38 inside grommet 5. Furthermore, assembly 22 is placed in tubular portion 6 of grommet 5.

(Advantages of the Wire Harness 1 of the Present Example)
As shown in Figure 7, there are cases where the mounting space for the wire harness 1 is small. Here, an example is given in which the height of the mounting space is low. In this example, since a flexible shielding material 24 is used, the wire harness 1 can be bent and arranged. Furthermore, the first adhesive layer 25 and the second adhesive layer 26 can also be bent, which facilitates bending of the wire harness 1. In this way, it is possible to provide flexibility in the posture (inclination) of the wire harness 1, so that the wire harness 1 can be routed even in a small mounting space.

The shielding material 24 is tightly adhered to the stop valve 23 by wrapping the first adhesive layer 25 around it. In other words, the first adhesive layer 25 is wrapped around the outer periphery of the shielding material 24 to prevent gaps from forming between the shielding material 24 and the stop valve 23. This improves the watertightness between the stop valve 23 and the shielding material 24.

A butyl-based rubber sheet 34 is used as the first adhesive layer 25, and is wrapped around the shielding material 24 and then pressurized with a jig 41. Therefore, when the shielding material 24 is a braided shield 32, the butyl-based rubber sheet 34 penetrates into the mesh of the braided shield 32 due to the pressure, allowing the butyl-based rubber sheet 34 to blend with the braided shield 32. This also contributes to firmly securing the shielding material 24 to the stop valve 23.

The first adhesion layer 25 is tightly adhered to the shielding material 24 by having the second adhesion layer 26 wrapped around it. In other words, the second adhesion layer 26 is wrapped around the outer periphery of the first adhesion layer 25 to prevent gaps from forming between the shielding material 24 and the first adhesion layer 25. This further improves the watertightness between the shielding material 24 and the first adhesion layer 25.

However, because the butyl-based rubber sheet 34 is adhesive, it can stick to the worker's hands or other parts of the body. However, in this example, the butyl-based rubber sheet 34 is covered with the second adhesive layer 26, so the butyl-based rubber sheet 34 is not exposed on the surface. This makes it less likely for the butyl-based rubber sheet 34 to stick to the worker's hands or other parts of the body. This also makes it easier to handle.

(Effects of the embodiment)
According to the wire harness 1 of the above embodiment, the following effects can be obtained.
(1) The wire harness 1 includes an electric wire 2, a grommet 5, a stopcock 23, a shielding material 24, a first adhesive layer 25, and a second adhesive layer 26. The electric wire 2 transmits electricity. The grommet 5 is attached to an opening 4 through which the electric wire 2 passes, and houses the electric wire 2 therein. The stopcock 23 is provided to stop water from entering the inside of the grommet 5, and the electric wire 2 passes through and is attached. The shielding material 24 is attached around the stopcock 23. The first adhesive layer 25 is attached to the outer periphery of the shielding material 24, thereby adhering the shielding material 24 to the stopcock 23. The second adhesive layer 26 is attached to the outer periphery of the first adhesive layer 25, thereby adhering the first adhesive layer 25 to the shielding material 24.

In this example, the first adhesive layer 25 adheres the shielding material 24 to the stopcock 23, and the second adhesive layer 26 adheres the first adhesive layer 25 to the shielding material 24. In this way, the two layers, the first adhesive layer 25 and the second adhesive layer 26, adhere the components to each other, making it less likely for gaps to form between the components. This improves the watertightness of the bendable wire harness 1.

(2) The shielding material 24 is a braided shield 32 formed from wires 31. Butyl-based rubber is used in at least a portion of the first adhesive layer 25. With this configuration, the butyl-based rubber penetrates between the stitches of the braided shield 32, allowing the butyl-based rubber to adhere firmly to the shielding material 24. This increases the adhesion between the stop valve 23 and the shielding material 24, further contributing to improved watertightness.

(3) The first adhesive layer 25 is a sheet-like butyl-based rubber sheet 34 that uses butyl-based rubber in at least a portion thereof. The butyl-based rubber sheet 34 is wound around the electric wire 2 multiple times while shifting its position along the axial direction, and is attached to the braided shield 32 by applying pressure with a jig 41 so that it is in close contact with the braided shield 32. With this configuration, the butyl-based rubber sheet 34 can be attached around the braided shield 32 by the simple process of wrapping the butyl-based rubber sheet 34 around the braided shield 32. Furthermore, since the butyl-based rubber sheet 34 is applied with pressure by the jig 41 after attachment, the butyl-based rubber sheet 34 can be firmly fitted to the braided shield 32.

(4) The second adhesive layer 26 is a tape 35 wound around the wire 2 in multiple turns, with the tape 35 being shifted along the axial direction of the wire 2. This configuration simplifies the process by simply wrapping the tape 35 around the first adhesive layer 25.

(5) The grommet 5 has an annular seal portion 38 on its inner surface that seals the gap between the grommet 5 and the second adhesive layer 26. This configuration improves the watertightness between the grommet 5 and the second adhesive layer 26.

(6) The stop valve 23 has a hole 27 through which the electric wire 2 passes. The hole 27 has an annular seal portion 30 on its inner surface that seals the gap between the electric wire 2 and the stop valve 23. This configuration improves the watertightness between the electric wire 2 and the stop valve 23.

(7) The grommet 5 has a tubular portion 6 that houses the assembly 22 therein and a seat portion 8 that supports the base end 7 of the tubular portion 6. The assembly 22 includes an electric wire 2, a stopcock 23, a shielding material 24, a first adhesive layer 25, and a second adhesive layer 26. With this configuration, the wire harness 1 can easily change shape by bending the tubular portion 6 around the seat portion 8. This makes it easier to bend the wire harness 1.

(8) The seat 8 has a water-stopping wall 39 formed around the entire edge. This configuration prevents fluids such as water from entering the seat 8, thereby further improving the water-stopping properties.
This embodiment can be modified as follows: This embodiment and the following modifications can be combined and implemented within the scope of technical compatibility.

The shielding material 24 is not limited to the braided shield 32 and may be, for example, a sheet or a tube that can shield electromagnetic waves.
The method for fitting the first adhesive layer 25 to the shielding material 24 is not limited to the method of applying pressure with the roller 42, but may be, for example, a method of simply pressing the jig 41.

The first adhesive layer 25 is not limited to a sheet shape and may be, for example, a cylindrical shape.
- The first adhesion layer 25 is not limited to butyl-based rubber (butyl-based rubber sheet 34), but may be any material that is bendable and can be wrapped around the shielding material 24 to press it against the stop valve 23.

In the example shown in Figures 6(a) to 6(d), the first adhesive layer 25 is wrapped in a so-called half-wrap manner, but the first adhesive layer 25 may also be wrapped in a full-wrap manner. As shown in Figures 8(a) to 8(d), the first adhesive layer 25 may be wrapped around the shielding material 24 multiple times at the same position in the axial direction of the electric wire 2, i.e., without any offset in the axial direction of the electric wire 2. For example, without limitation, the dimension of the first adhesive layer 25 in the axial direction of the electric wire 2 (arrow A1) (sometimes referred to as the width of the first adhesive layer 25) may be substantially or completely equal to the entire length of the stopcock 23 in the axial direction of the electric wire 2 (arrow A1). When the first adhesive layer 25 is a butyl-based rubber sheet 34, a butyl-based rubber sheet stack may be formed around the stopcock 23 over the entire length of the stopcock 23, with multiple butyl-based rubber sheets 34 overlapping each other. A roll of multiple layers of the first adhesive layer 25 (a roll of multiple layers of butyl-based rubber sheet 34) having a length corresponding to or equal to the entire length of the stopcock 23 is advantageous in improving water-stopping properties, and can flexibly adapt to sealing performance requirements, for example, by adjusting the number of turns according to the sealing performance requirements.

The tape 35 of the second adhesive layer 26 is not limited to a vinyl tape, but may be any resin tape.
The tape 35 of the second adhesive layer 26 is preferably, for example, an insulating tape.

The second adhesive layer 26 is not limited to the tape 35 and may be, for example, a cylindrical member that surrounds the first adhesive layer 25 .
The stop valve 23 is not limited to a rubber stopper, and may be made of any elastic material. In this manner, the stop valve 23 may be made of any material that can seal the inside of the grommet 5.

The grommet 5 may be attached directly to the attachment 3, for example, the body of the vehicle, without using the bracket 9.
The grommet 5 may have any shape as long as it can protect the electric wire 2 passed through the hole 27 .

The assembly 22 does not have to be disposed only in the cylindrical portion 6 , but may be shaped to extend across the base end 7 and reach the seat portion 8 .
The electric wire 2 may be a cable formed by bundling a plurality of electric wires.

The wire harness 1 is not limited to being used in a vehicle and may be used in other devices or apparatuses.
[Supplementary Note 1] As shown in FIGS. 4 and 5, a wire harness (1) according to some embodiments of the present disclosure includes:
A plurality of electric wires (2), each having an outer circumferential surface;
an elastic water stop valve (23) having a plurality of through holes (27) configured to be in watertight contact with a plurality of outer peripheral surfaces of the plurality of electric wires (2) in a first length portion of the plurality of electric wires (2);
a cylindrical braided shield (24) longer than the entire length of the stop valve (23), the cylindrical braided shield (24) configured to collectively cover the plurality of electric wires (2) and the stop valve (23);
a cylindrical first adhesive layer (25) having a total length equal to or corresponding to the total length of the stopcock (23), the cylindrical first adhesive layer (25) being configured to adhere to the outer peripheral surface of the cylindrical braided shield (24) over the entire length of the cylindrical first adhesive layer (25);
a cylindrical second adhesive layer (26) longer than the entire length of the cylindrical first adhesive layer (25), configured to be in close contact with the outer peripheral surface of the cylindrical first adhesive layer (25) over the entire length of the cylindrical first adhesive layer (25);
and a grommet (5) having an elastic tubular portion (6) configured to allow the plurality of electric wires (2) to pass through.

[Appendix 2] In some embodiments, as shown in Figures 4 and 5, the stopcock (23), the tubular braided shield (24), the tubular first adhesive layer (25), and the tubular second adhesive layer (26) may form a multi-layer structure covering the first length portion of the plurality of electric wires (2) in this order.

[Appendix 3] In some embodiments, as shown in Figures 4 and 5, the second adhesive layer (26) may be adhered to the outer surface of the tubular braided shield (24) in a second length portion adjacent to the first length portion of the plurality of wires (2).

[Appendix 4] In some embodiments, as shown in Figures 4 and 5, the multilayer structure including the stopcock (23), the tubular braided shield (24), the tubular first adhesive layer (25), and the tubular second adhesive layer (26) may be arranged in the elastic tubular portion (6) of the grommet (5), and the tubular second adhesive layer (26), which forms the radially outermost surface of the multilayer structure, may be in watertight contact with the inner surface (21) of the tubular portion (6) of the grommet (5).

[Appendix 5] In some embodiments, as shown in Figures 4 and 5, the outer peripheral surface of the stop valve (23) is surrounded by the inner peripheral surface (21) of the tubular portion (6) of the grommet (5), but does not need to be in direct contact with the inner peripheral surface (21) of the tubular portion (6).

- While the present disclosure has been described with reference to examples, it is understood that the present disclosure is not limited to those examples or structures. The present disclosure also encompasses various modifications and modifications within the scope of equivalents. In addition, various combinations and forms, as well as other combinations and forms including only one element, more than one, or fewer than one, are also within the scope and spirit of the present disclosure.

REFERENCE SIGNS LIST 1 Wire harness 2 Electric wire 3 Mounting point 4 Opening 5 Grommet 6 Cylinder portion 7 Base end 7a Recessed portion 8 Seat portion 9 Bracket 10 Fastening portion 13 Main body 14 Flange 15 Hole 16 Pin 17 Hole 18 Hole 21 Inner surface 22 Assembly 23 Stopcock 24 Shielding material 25 First adhesive layer 26 Second adhesive layer 27 Hole 30 Sealing portion 31 Wire 32 Braided shield 34 Butyl-based rubber sheet 35 Tape 38 Sealing portion 39 Wall portion 41 Jig 42 Roller P Shaft

Claims (4)

an electric wire for transmitting electricity;
a grommet attached to the opening through which the electric wire passes and accommodating the electric wire therein;
a water stop valve provided to stop water from entering the grommet and through which the electric wire passes;
A shielding material attached around the stop valve;
a first adhesive layer that is attached to the outer periphery of the shielding material to adhere the shielding material to the stop valve;
a second adhesive layer attached to an outer periphery of the first adhesive layer to adhere the first adhesive layer to the shielding material ,
The second adhesive layer is a tape wound multiple times while shifting positions along the axial direction of the electric wire . an electric wire for transmitting electricity;
a grommet attached to the opening through which the electric wire passes and accommodating the electric wire therein;
a water stop valve provided to stop water from entering the grommet and through which the electric wire passes;
A shielding material attached around the stop valve;
a first adhesive layer that is attached to the outer periphery of the shielding material to adhere the shielding material to the stop valve;
a second adhesive layer attached to an outer periphery of the first adhesive layer to adhere the first adhesive layer to the shielding material ,
The grommet has an annular seal portion on an inner surface thereof for sealing a gap between the grommet and the second adhesive layer . an electric wire for transmitting electricity;
a grommet attached to the opening through which the electric wire passes and accommodating the electric wire therein;
a water stop valve provided to stop water from entering the grommet and through which the electric wire passes;
A shielding material attached around the stop valve;
a first adhesive layer that is attached to the outer periphery of the shielding material to adhere the shielding material to the stop valve;
a second adhesive layer attached to an outer periphery of the first adhesive layer to adhere the first adhesive layer to the shielding material ,
The grommet is
a cylindrical portion that accommodates an assembly including the stopcock, the electric wire, the shielding material, the first adhesive layer, and the second adhesive layer;
a seat portion supporting a base end of the cylindrical portion;
A wire harness having : The wire harness according to claim 3 , wherein the seat portion has a water-stopping wall portion formed around the entire edge thereof.