JP2023154485A - Shield exterior member, exterior member wire harness, and manufacturing method of shield exterior member - Google Patents

Abstract

To provide a protector 10 which can protect a wire harness W from electromagnetic noise generated at the outside, a wire harness 1 with a protector and a manufacturing method of the protector 10 while shielding electromagnetic noise generated at the wire harness W.SOLUTION: A wire harness 1 with a protector is provided with a protector 10 comprising a cylindrical protector body 11 which is composed of a thermoplastic resin foam sheet and into which a wire harness W is inserted, and a shield member 12 laminated on an inner peripheral surface of the protector body 11, in which the wire harness W is inserted into the protector 10.SELECTED DRAWING: Figure 2

Description

The present invention relates to, for example, a shield exterior member in which a wire harness is inserted into the interior of an exterior body, a wire harness with an exterior member, and a method for manufacturing a shield exterior member.

BACKGROUND ART In vehicles such as automobiles, a power source and electrical devices are electrically connected using a wire harness made up of a plurality of wires bundled together. This wire harness is inserted into the interior of the cylindrical exterior member to regulate its position in a desired wiring route and to prevent contact with peripheral parts.

For example, in Patent Document 1, a wire harness is inserted through an exterior member formed by bending a thermoplastic resin foam sheet material along the creases and forming a cylindrical body with a substantially rectangular cross section, thereby suppressing an increase in weight. This controls the position of the wire harness and prevents it from coming into contact with surrounding parts.

Incidentally, in recent years, electric devices that easily generate electromagnetic noise have been increasing in vehicles such as automobiles, such as high-voltage devices such as inverters, information devices that provide various information to passengers, and communication devices that communicate wirelessly with the outside. The number of wire harnesses that connect these devices is also increasing.

For this reason, when wiring a wire harness so as to pass near electrical equipment, it is necessary to shield the electromagnetic noise generated by the wire harness and to partially protect the wire harness from the electromagnetic noise generated by the electrical equipment. .
However, since the exterior member of Patent Document 1 cannot be expected to have shielding performance, there is a problem in that it cannot meet the needs of shielding electromagnetic noise generated in the wire harness and partially protecting the wire harness from electromagnetic noise generated externally. was there.

JP 2021-153377 Publication

In view of the above-mentioned problems, the present invention aims to manufacture a shield exterior member, a wire harness with an exterior member, and a shield exterior member that can shield electromagnetic noise generated in a wire harness and protect the wire harness from electromagnetic noise generated externally. The purpose is to provide a method.

The present invention is a shield exterior member comprising a cylindrical exterior body made of a resin sheet material and into which a wire harness is inserted, and a shield member laminated on the circumferential surface of the exterior body. Features.
The exterior main body is a cylindrical body having a substantially rectangular cross section, a cylindrical body having a substantially polygonal cross section, or a cylindrical body having a substantially circular cross section.

Laminated on the circumferential surface of the exterior body means laminated on the outer circumference of the exterior body, laminated on the inner circumference of the exterior body, or laminated on the outer and inner circumferential surfaces of the exterior body.
Furthermore, the term "laminated on the circumferential surface of the exterior main body" includes a state in which the shield member is in close contact with the exterior main body, as well as a state in which the shield member is partially separated from the exterior main body.

According to this invention, since the shield member is laminated on the peripheral surface of the exterior main body made of a resin sheet material, the shield exterior member can surround the wire harness with the shield member.
Therefore, the shield exterior member can shield electromagnetic noise generated in the wire harness and protect the wire harness from electromagnetic noise generated externally.

As an aspect of the present invention, a protection member for protecting the shield member may be provided, and the shield member may be disposed between the exterior main body and the protection member.
According to this configuration, the shield exterior member can prevent damage to the shield member due to contact with the wire harness or peripheral components. Thereby, the shield exterior member can ensure stable shield performance.

Moreover, as an aspect of the present invention, the protection member may be made of a resin sheet material.
The resin sheet material mentioned above refers to the same resin sheet material as the resin sheet material constituting the exterior body, or a resin sheet material different from the resin sheet material constituting the exterior body.
According to this configuration, the shield exterior member can protect the shield member while suppressing an increase in weight compared to, for example, a metal protection member.

Moreover, as an aspect of the present invention, the shield member may be in the form of a sheet.
The above-mentioned sheet shape refers to a thin plate shape or a thin film shape.
According to this configuration, the shield exterior member can easily bring the shield member into close contact with the peripheral surface of the exterior body, so that the shield member can be reliably laminated on the exterior body.

Further, as an aspect of the present invention, a fixing portion for fixing the shield member to the exterior main body may be provided.
Fixing the shield member to the exterior main body means fixing with adhesive, fixing with adhesion, fixing with engagement, fixing with clamping, fixing with welding, or the like.

According to this configuration, since the shield member can be fixed to the exterior main body, the shield exterior member can stably maintain a state in which the shield member is stacked on the exterior main body.
As a result, the shield exterior member can reliably surround the wire harness, thereby shielding electromagnetic noise generated in the wire harness and stably protecting the wire harness from electromagnetic noise generated outside.

Further, as an aspect of the present invention, the fixing portion may be formed of an adhesive layer formed between the exterior main body and the shield member.
According to this configuration, the shield exterior member can be fixed to the exterior main body with a simple configuration.

Further, as an aspect of the present invention, the fixing portion may be configured separately from the exterior main body, and may include an engagement member that fixes the shield member by engaging with the exterior main body.
The above-mentioned engagement refers to engaging with an engagement hole provided in the exterior main body, engaging in a piercing manner with the exterior main body, and the like.

According to this configuration, the shield exterior member can be fixed to the exterior body by engagement of the engagement member with the exterior body.
Therefore, compared to, for example, the case where the shield member is adhesively fixed to the exterior body, the shield exterior member can easily and firmly fix the shield member to the exterior body.
Thereby, the shield exterior member can more stably maintain the state in which the shield member is stacked on the exterior body.

Moreover, as an aspect of the present invention, the fixing part may include a clamping part that clamps the shield member with the exterior main body.
The above-mentioned clamping part refers to a clamping part integrally configured with the exterior main body, or a clamping part configured separately from the exterior main body.

According to this configuration, the shield member can be fixed to the outer case body simply by holding the shield member between the holding parts.

Therefore, compared to, for example, the case where the shield member is adhesively fixed to the exterior body, the shield exterior member can easily and firmly fix the shield member to the exterior body.
Thereby, the shield exterior member can more stably maintain the state in which the shield member is stacked on the exterior body.

Further, as an aspect of the present invention, the shield member is provided with an internal locking part that protrudes toward the exterior main body and is locked and fixed inside the exterior main body, and the fixing part is configured to be connected to the internal locking part. It may be composed of parts.

According to this configuration, the shield exterior member can be fixed to the exterior main body by the internal locking portion of the shield member.
Thereby, the shield exterior member can eliminate the need for a separate fixing part from the exterior main body and the shield member, so that the shield member can be fixed to the exterior main body while suppressing an increase in weight.

Further, as an aspect of the present invention, the exterior main body may include a base portion having a concave cross-section extending along the longitudinal direction of the wire harness, and a cover portion covering the opening having the concave cross-section.
The above-mentioned concave cross-sectional shape refers to, for example, a substantially portal-shaped cross-section, a substantially semicircular arc-shaped cross-section, a substantially U-shaped cross-section, a substantially V-shaped cross-section, and the like.

According to this configuration, since the wire harness can be inserted into the interior through the opening of the base portion, the shield exterior member can be easily attached to, for example, an existing wire harness.

Furthermore, since the opening of the base portion is closed by the cover portion, the shield exterior member can reliably surround the wire harness with the shield member.
As a result, the shield exterior member can shield electromagnetic noise generated in the wire harness and protect the wire harness from electromagnetic noise generated externally, without impairing assemblability to the wire harness.

Further, as an aspect of the present invention, the base portion has a bottom portion facing the cover portion with the wire harness in between, and an end portion of the bottom portion in a direction perpendicular to the longitudinal direction that is erected toward the cover portion. A pair of side wall portions are formed to have a concave cross-sectional shape, and the cover portion is provided with an overlapping portion that overlaps at least one side wall portion of the pair of side wall portions when the opening of the base portion is closed. It's okay.

According to this configuration, when the cover portion closes the opening of the base portion, the overlapping portion of the cover portion overlaps the side wall portion of the base portion, so that the exterior main body can suppress foreign matter from entering the interior.

Furthermore, for example, when the shield member is laminated on the inner circumferential surface of the exterior body, the shield exterior member can surround the wire harness with the shield member without any gaps. However, stable shielding performance can be ensured.

Further, as an aspect of the present invention, the exterior main body may include a pivoting portion that pivotally connects the cover portion to the base portion.
According to this configuration, the shield exterior member can close the opening of the base part more easily than a cover part that is separate from the base part. Therefore, the shield exterior member can improve ease of assembly to the wire harness.

Further, as an aspect of the present invention, the base portion includes a bottom portion facing the cover portion with the wire harness in between, and a pair of base portions that are erected from end portions of the bottom portion in a direction orthogonal to the longitudinal direction toward the cover portion. side wall portions, the exterior body is formed with a concave cross-section, and the exterior main body includes a pivot portion that pivotally connects the cover portion to one of the side wall portions, and a pivot portion that pivotably connects the cover portion to the other side wall portion. and an overlapping part that is connected to and overlaps with the cover part inside the exterior main body.

According to this configuration, since the cover portion overlaps the overlapping portion in a state where the cover portion closes the opening of the base portion, the exterior main body can suppress foreign matter from entering into the interior.

Furthermore, for example, when the shield member is laminated on the inner circumferential surface of the exterior body, the shield exterior member can surround the wire harness with the shield member without any gaps. However, stable shielding performance can be ensured.

Further, as an aspect of the present invention, a conductive member may be provided, one end of which is connected to the shield member and the other end of which is connected to a ground electrode.
According to this configuration, the shield exterior member can remove the electromagnetic noise absorbed by the shield member by propagating it to the ground electrode via the conductive member. Therefore, the shield exterior member can ensure more stable shield performance.

Further, as an aspect of the present invention, the shield member may be exposed from an opening at an end in the longitudinal direction of the exterior main body.
According to this configuration, the shield exterior member surrounds the wire harness with the shield member exposed from the exterior body, thereby preventing electromagnetic noise from leaking outside from the end opening of the exterior body, and preventing electromagnetic noise from leaking from the exterior body. Intrusion into the interior through the end opening can be prevented.
Thereby, the shield exterior member can shield electromagnetic noise generated in the wire harness, and can more reliably protect the wire harness from electromagnetic noise generated outside.

Further, the present invention is characterized in that it is a wire harness with an exterior member that includes the above-described shield exterior member and a wire harness that is inserted into the inside of the shield exterior member.
According to this invention, the shield member of the shield exterior member allows the wire harness with exterior member to shield electromagnetic noise generated in the wire harness and protect the wire harness from electromagnetic noise generated outside.

As an aspect of the invention, a connector electrically connected to an object to be connected may be provided at a longitudinal end of the wire harness, and a portion of the connector may be housed inside the exterior main body.

According to this configuration, a part of the connector is housed inside the exterior main body, so the wire harness with exterior member prevents leakage of electromagnetic noise generated near the connection point with the connector, and also prevents leakage of electromagnetic noise generated near the connection point with the connector. It is possible to protect the vicinity of the connection point from electromagnetic noise.

Furthermore, since the shield exterior member supports the connection point between the wire harness and the connector, the wire harness with the exterior member can prevent unintended bending of the wire harness near the connector.

Further, as an aspect of the invention, a connector electrically connected to a connection target is provided at a longitudinal end of the wire harness, and an end of the exterior main body in the longitudinal direction is inserted into the connector. Good too.

According to this configuration, the longitudinal end of the exterior body is inserted into the connector, so the wire harness with exterior member prevents leakage of electromagnetic noise generated near the connection point with the connector, and also prevents the wire harness from leaking. The vicinity of the connection point between the harness and the connector can be protected from electromagnetic noise.

The present invention also includes a fixing step of laminating and fixing a shield member on the surface of an exterior body made of a resin sheet material, and a main body forming the exterior body into a cylindrical shape into which a wire harness can be inserted. The present invention is characterized in that it is a manufacturing method of a shield exterior member which performs a molding step.

According to this invention, since the shielding member can be laminated on the exterior main body, the method for manufacturing the shielding exterior member is a shielding exterior that shields electromagnetic noise generated in the wire harness and protects the wire harness from electromagnetic noise generated externally. members can be provided.

As an aspect of the invention, the fixing step may be a step of adhesively fixing the shield member to the exterior main body.
According to this configuration, the shield member can be easily fixed to the exterior main body.

Further, as an aspect of the present invention, the fixing step may be a step of overlapping the shield member on the exterior main body and engaging a separate engagement member with the exterior main body from the shield member side. .
According to this configuration, the shield member can be easily fixed to the exterior body as the engagement member engages with the exterior body.

Moreover, as an aspect of the present invention, the fixing step may be a step of sandwiching and fixing the shield member between clamping parts provided on the exterior main body.
According to this configuration, the shield member can be easily fixed to the exterior main body simply by holding the shield member between the holding parts.

Further, as an aspect of the present invention, the fixing step includes accommodating a protective member made of a resin sheet material and protecting the shield member inside the exterior body, and sandwiching the shield member between the exterior body and the protective member. It may also be a fixing process.
According to this configuration, the shield member can be fixed to the exterior main body as the protection member is accommodated.

Moreover, as an aspect of the present invention, the fixing step may be a step of ultrasonically welding the shield member to the exterior main body.
According to this configuration, the shield member can be easily fixed to the exterior main body.

Further, as an aspect of the present invention, the fixing step may be a step of superimposing the thermoplastic shield member on the exterior main body and heating and thermally welding the shield member.
According to this configuration, the shield member can be easily fixed to the exterior main body.

Further, as an aspect of the present invention, the fixing step includes piercing a needle-like jig at a plurality of locations from the shield member side into the exterior body on which the shield member is stacked, and attaching the shield member to the exterior body. The method may be a step of forming an internal locking portion that projects inward, and locking the internal locking portion inside the exterior main body.

According to this configuration, since the internal locking part of the shield member is locked to the exterior main body, for example, it is possible to eliminate the need for a separate fixing part from the exterior main body and the shield member, and to suppress the increase in weight of the shield member. It can be fixed to the exterior body.

According to the present invention, it is possible to provide a shield exterior member, a wire harness with an exterior member, and a method for manufacturing a shield exterior member that can shield electromagnetic noise generated in a wire harness and protect the wire harness from electromagnetic noise generated externally. can.

FIG. 3 is an external perspective view showing the external appearance of the wire harness with a protector seen from above. A sectional view taken along the line AA in FIG. 1. FIG. 3 is a cross-sectional perspective view showing a stacked state of the protector. FIG. 3 is an exploded perspective view showing the protector in an exploded state as seen from below. FIG. 3 is a cross-sectional view schematically showing a fixing structure of a shield member and a protection member in Example 2. An explanatory diagram illustrating an outline of a fixing process. FIG. 7 is a cross-sectional perspective view schematically showing a fixing structure of a shield member and a protection member in Example 3. FIG. 3 is a sectional view showing a fixing structure of a shield member and a protection member. FIG. 3 is an exploded perspective view showing the protector in an exploded state as seen from above. FIG. 7 is a cross-sectional view schematically showing a fixing structure of a shield member and a protection member in Example 4. An explanatory diagram illustrating an outline of a fixing process. FIG. 7 is an external perspective view showing the external appearance of a wire harness with a protector in Example 5. 13 is a sectional view taken along the line BB in FIG. 12. FIG. 3 is an external perspective view showing a state in which the protector main body is separated. FIG. 3 is a cross-sectional view showing a section near the connector in a longitudinal section. FIG. 3 is an external perspective view showing the external appearance of the protective member. An explanatory diagram illustrating an outline of a fixing process. FIG. 7 is a sectional view showing a cross section of a protector main body in another embodiment. FIG. 7 is an explanatory diagram illustrating an outline of a fixing structure in another embodiment. The external appearance perspective view which shows the external appearance of the wire harness with a protector in another embodiment.

An embodiment of this invention will be described below with reference to the drawings.

In Example 1, a wire harness with a protector 1 in which a wire harness W is inserted into a protector 10 will be described with reference to FIGS. 1 to 4.
1 shows an external perspective view of the wire harness with protector 1 seen from above, FIG. 2 shows a cross-sectional view taken along the line AA in FIG. 1, and FIG. 3 shows a cross-sectional perspective view of the protector 10 in a stacked state. FIG. 4 shows an exploded perspective view of the protector 10 viewed from below.

Furthermore, in FIG. 2, for clarity of illustration, the wire harness W is illustrated with a chain double-dashed line, and the cover portion 112 in an open state is illustrated with a chain double-dashed line.
Further, the upper side in FIG. 1 is the upper side, and the lower side in FIG. 1 is the lower side, and the arrow X in the figure indicates the longitudinal direction (hereinafter referred to as the longitudinal direction X) of the protector 10 in plan view. Further, an arrow Y in the figure indicates a direction substantially perpendicular to the longitudinal direction X in plan view (hereinafter referred to as the width direction Y).

As shown in FIG. 1, the wire harness with protector 1 of Example 1 includes a wire harness W extending along the longitudinal direction X and a protector 10 into which the wire harness W is inserted.

First, the wire harness W is configured by bundling a plurality of electric wires (not shown) that electrically connect a power source and an electric device, for example. The wire harness W is inserted into the protector 10 so that it is protected and the wiring route is regulated.

As shown in FIGS. 1 and 2, the protector 10 includes a substantially cylindrical protector main body 11 in which a wire harness W is inserted into an internal space 10X extending in the longitudinal direction A shield member 12 is provided.

Further, the protector 10 includes a protection member 13 laminated on the shield member 12 and a ground wire 14 connected to the shield member 12 at one end, as shown in FIGS. 2 and 3.
In addition, as shown in FIG. 3, the protector 10 includes a shield adhesive layer 15 interposed between the protector body 11 and the shield member 12, and a protective adhesive layer 16 interposed between the shield member 12 and the protection member 13. It is equipped with

As shown in FIGS. 1 and 2, the protector body 11 of the protector 10 has a cylindrical shape with a substantially rectangular cross section extending in the longitudinal direction X, and is made of a thermoplastic resin foam sheet. The internal space 10X of the protector main body 11 is formed as a space for accommodating the wire harness W.
Note that the protector main body 11 maintains its cylindrical state with a rectangular cross section, for example, by the adhesive tape 2 wound around the outer peripheral surface.

Specifically, as shown in FIGS. 2 and 4, the protector main body 11 is made by mountain-folding a flat thermoplastic resin foam sheet long in a predetermined direction along fold lines 11a, which are notches extending in a predetermined direction. It is formed into a cylindrical shape with a rectangular cross section extending in a predetermined direction.

Here, the thermoplastic resin foam sheet that constitutes the protector main body 11 will be described in detail. The density of the thermoplastic resin foam sheet is not particularly limited, but it can, for example, prevent anisotropy of mechanical properties, that is, make mechanical properties isotropic, improve the degree of freedom in designing the protector main body 11, and , 200 Kg/m ³ or more and 1000 Kg/m ³ or less is preferable in order to further improve the strength against stress on the wire harness W housed in the protector main body 11, which further improves the balance between lightness and mechanical strength. Therefore, 300 Kg/m ³ or more and 600 Kg/m ³ or less are more preferable, and 350 Kg/m ³ or more and 550 Kg/m ³ or less are particularly preferable.

The thickness of the thermoplastic resin foam sheet constituting the protector body 11 is not particularly limited, but includes, for example, ease of bending and mechanical strength, particularly mechanical strength against stress on the wire harness W housed in the protector body 11. From the point of view of further improving the balance with, 0.50 mm or more and 4.0 mm or less are preferable, and 1.0 mm or more and 2.5 mm or less are particularly preferable.

Moreover, a non-foamed layer may be formed on both sides or one side of the thermoplastic resin foamed sheet. That is, the thermoplastic resin foam sheet may have a structure including a foam layer and a non-foam layer formed on the foam layer. By forming the non-foamed layer on the surface of the thermoplastic resin foam sheet, the mechanical strength of the protector main body 11 is improved, and the protection performance of the wire harness W accommodated therein is further improved. The thickness of the non-foamed layer is not particularly limited, and may be, for example, 10 μm or more and 100 μm or less.

Further, the cell number density of the foam layer of the thermoplastic resin foam sheet constituting the protector body 11 is not particularly limited, and the lower limit is 800 cells in order to more reliably prevent anisotropy of mechanical properties. /mm ³ or more is preferable, and 1000 pieces/mm ³ or more is particularly preferable. On the other hand, the upper limit of the above-mentioned cell number density may be, for example, 1010 cells/mm ³ or less, from the viewpoint of more reliably obtaining excellent mechanical strength.

As shown in FIG. 2, the protector main body 11 formed of such a thermoplastic resin foam sheet includes a base portion 111 having a generally concave cross section with an open upper portion, and a cover portion 112 that closes the opening of the base portion 111. , and a pivoting portion 113 that pivotally connects the cover portion 112 to the base portion 111.

Specifically, as shown in FIG. 2, the base part 111 of the protector main body 11 has a bottom part 111a facing the cover part 112 with the wire harness W in between, and a bottom part 111a facing upward from both ends of the bottom part 111a in the width direction Y. A pair of upright side wall portions 111b form a substantially concave cross section with an open top.

As shown in FIG. 4, the base portion 111 has a pair of side wall portions 111b connected to both ends of the bottom portion 111a in the width direction Y in the protector main body 11 in the unfolded state in which it is expanded into a flat plate shape.
Note that a fold line 11a is formed at the boundary between the side wall portion 111b and the bottom portion 111a.

As shown in FIGS. 2 and 4, the base portion 111 is arranged such that the thickness direction of the bottom portion 111a is the vertical direction, and the thickness direction of the pair of side wall portions 111b is the width direction Y. It is formed by mountain-folding along the fold line 11a.

In addition, as shown in FIG. 2, the cover part 112 of the protector main body 11 includes a cover main body 112a that closes the upper opening of the base part 111, and a cover main body 112a that extends downward from one end in the width direction Y of the cover main body 112a. , an overlapping portion 112b overlapping in the width direction Y is provided on one side wall portion 111b of the base portion 111.

As shown in FIG. 4, in the protector body 11 in the unfolded state, the cover body 112a is connected to one end of the other side wall portion 111b in the width direction Y via the pivoting portion 113, and the overlapping portion 112b is connected to the other end of the cover main body 112a in the width direction Y.
Note that creases 11a are formed at the boundary between the cover body 112a and the side wall portion 111b, and at the boundary between the cover body 112a and the overlapping portion 112b.

As shown in FIGS. 2 and 4, when the cover section 112 closes the upper opening of the base section 111, the thickness direction of the cover main body 112a is the vertical direction, and the thickness direction of the overlapping section 112b is the width direction. The protector main body 11 in the unfolded state is mountain-folded along the fold line 11a so as to form a Y shape.

Moreover, the pivoting part 113 of the protector main body 11 pivotally connects the other side wall part 111b of the base part 111 and the cover main body 112a of the cover part 112, as shown in FIG. The pivot portion 113 is formed of a mountain-folded portion along a fold line 11a provided at the boundary between the other side wall portion 111b and the cover main body 112a in the unfolded state.

The shield member 12 of the protector 10 is made of a thin sheet-like member that is conductive and flexible, and shields electromagnetic noise generated in the wire harness W inserted into the protector main body 11. The wire harness W inserted into the interior of the main body 11 is protected from electromagnetic noise generated by electrical equipment and the like. Note that the shield member 12 is, for example, aluminum foil, copper foil, or conductive cloth.

As shown in FIG. 4, the shield member 12 is formed in a sheet shape, having a longer length in the longitudinal direction X and approximately the same length in the width direction Y than the protector main body 11 in the unfolded state.
As shown in FIG. 2, the shield member 12 faces the inner circumferential surface of the base portion 111, the inner circumferential surface of the cover body 112a, and the side wall portion 111b with respect to the cylindrical protector main body 11. It is laminated on the surface of the overlapping portion 112b.

Specifically, as shown in FIGS. 2 and 4, the shield member 12 includes a shield main body portion 12a laminated on the protector main body 11, and a shield exposed portion 12b ( (see Figure 1).

The shield main body part 12a of the shield member 12 is formed in a size that integrally covers the bottom part 111a, the pair of side wall parts 111b, the cover main body 112a, and the overlapping part 112b, and is laminated on the protector main body 11.

More specifically, as shown in FIG. 4, the shield main body portion 12a is formed into a substantially rectangular shape in plan view having substantially the same length in the longitudinal direction X and length in the width direction Y as the protector main body 11 in the unfolded state. There is. This shield body portion 12a is attached to one main surface of the protector body 11 via a shield adhesive layer 15, which will be described later.

On the other hand, as shown in FIG. 4, the exposed shield portions 12b of the shield member 12 extend from both ends of the shield body 12a in the longitudinal direction X with substantially the same length in the width direction Y as the shield body 12a. There is.

As shown in FIG. 1, this shield exposed portion 12b surrounds the wire harness W when the wire harness W is inserted into the protector main body 11, and the tip in the longitudinal direction X is attached to the wire harness with adhesive tape 2. It is fixed at W.

The protection member 13 of the protector 10 is made of a flexible thin sheet-like resin sheet material, and is laminated on the shield main body 12a of the shield member 12 to shield it from contact with the wire harness W. The shield main body portion 12a of the member 12 is protected. Note that the protective member 13 is, for example, a urethane sheet or a vinyl sheet.

As shown in FIG. 4, the protective member 13 is formed in a sheet shape having approximately the same length in the longitudinal direction X and length in the width direction Y as the protector main body 11 in the unfolded state.
As shown in FIGS. 2 and 4, the protective member 13 is attached to the main surface of the shield member 12 on the opposite side from the protector main body 11 via a protective adhesive layer 16, which will be described later. It is laminated on the protector main body 11 via 12.

Further, the ground wire 14 of the protector 10 is an electric wire in which a conductor 14a is covered with an insulating coating 14b, as shown in FIG. As shown in FIG. 3, this ground wire 14 has one end electrically connected to the shield member 12, and the other end connected to a ground electrode (not shown).

Specifically, as shown in FIG. 3, in the ground wire 14, a conductor 14a exposed from one end of an insulating coating 14b is electrically connected to the shield body portion 12a of the shield member 12. For this reason, the ground wire 14 is arranged so as to be led out from the internal space 10X of the cylindrical protector main body 11, as shown in FIG.

Further, as shown in FIG. 3, the shield adhesive layer 15 of the protector 10 is a fixing part that fixes the shield member 12 to the protector main body 11, and is formed of an adhesive for attaching the shield member 12 to the protector main body 11. has been done.

Further, the protective adhesive layer 16 of the protector 10 is a fixing part that fixes the protective member 13 to the shield member 12, as shown in FIG. has been done.

Next, the assembly process of the wire harness with protector 1 having the above-described structure will be briefly described using an example.
First, as a fixing step of stacking and fixing the shield member 12 and the protection member 13 on the protector body 11, the operator or the assembly device forms the shield adhesive layer 15 on the upper surface of the protector body 11 in the unfolded state. Apply adhesive.

After that, the operator or the assembly device attaches the shield main body part 12a of the shield member 12 to which the ground wire 14 has been joined in advance to the upper surface of the protector main body 11 via an adhesive applied to the upper surface of the protector main body 11. A shield member 12 is laminated on the protector main body 11.

When the shield members 12 are stacked, a worker or an assembly device applies adhesive to form the protective adhesive layer 16 to the shield body portion 12a of the shield member 12 stacked on the protector body 11, and then attaches the protective member 13 to the shield body. The protective member 13 is laminated on the shield member 12 by pasting it on the portion 12a.

Then, the adhesive applied to the upper surface of the protector body 11 is cured to form a shield adhesive layer 15, and the adhesive applied to the shield member 12 is cured to form a protective adhesive layer 16, whereby the protector body 11 is cured. A shield member 12 and a protection member 13 are fixed to the upper surface of.

After completing the fixing step, the operator or the assembly device performs a main body forming step of forming the unfolded protector main body 11 in which the shield member 12 and the protection member 13 are stacked into a cylindrical shape into which the wire harness W can be inserted. Start.

When the main body forming process is started, the operator or the assembly device mountain-folds the protector main body 11 in the unfolded state along the fold line 11a so that the upper surface to which the shield member 12 and the protective member 13 are attached becomes the inner circumferential surface. Then, the base portion 111 is formed.

Specifically, an operator or an assembly device forms the base portion 111 by mountain-folding the protector main body 11 along the fold line 11a so that the pair of side wall portions 111b are erected with respect to the bottom portion 111a.
After forming the base portion 111 , an operator or an assembly device inserts the wire harness W through the opening of the base portion 111 and stores the wire harness W inside the base portion 111 .

When the wire harness W is housed in the base portion 111, the operator or the assembly device mountain-folds the cover body 112a along the fold line 11a against the side wall portion 111b to form the pivot portion 113, and also folds the cover body 112a into the side wall portion 111b. The overlapping portion 112b is mountain-folded along the fold line 11a to form the cover portion 112.

Further, the operator or the assembly device rotates the cover part 112 around the pivot part 113 to close the opening of the base part 111.
After that, the operator or the assembly device wraps the adhesive tape 2 around the outer peripheral surface of the protector main body 11 to fix the cover part 112 to the base part 111 to form the cylindrical protector 10.

When constructing the protector 10, the operator or the assembly device surrounds the wire harness W with the shield exposed portion 12b of the shield member 12 exposed from the protector main body 11, and then attaches the tip of the shield exposed portion 12b to the wire harness with the adhesive tape 2. Fix it to W.
In this way, the worker or the assembling device completes the assembling work of the wire harness 1 with a protector.

As described above, the protector 10 of the first embodiment includes a cylindrical protector body 11 that is made of a thermoplastic resin foam sheet, into which the wire harness W is inserted, and a shield that is laminated on the inner peripheral surface of the protector body 11. A member 12 is provided.
Further, the wire harness with protector 1 of the first embodiment includes the above-described protector 10 and the wire harness W inserted into the protector 10.

According to this configuration, the shield member 12 is laminated on the inner peripheral surface of the protector body 11 made of a thermoplastic resin foam sheet, so the protector 10 can surround the wire harness W with the shield member 12. .
Therefore, the protector 10 and the wire harness with protector 1 can shield the electromagnetic noise generated in the wire harness W, and can protect the wire harness W from electromagnetic noise generated by electrical equipment or the like.

Further, a protection member 13 that protects the shield member 12 is provided, and since the shield member 12 is disposed between the protector main body 11 and the protection member 13, the protector 10 is protected against the shield member by contact with the wire harness W. 12 can be prevented from being damaged. Thereby, the protector 10 can ensure stable shielding performance.

Furthermore, since the protection member 13 is made of a resin sheet material, the protector 10 can protect the shield member 12 with less weight increase than, for example, a metal protection member.

Moreover, since the shield member 12 is sheet-shaped, the protector 10 can easily bring the shield member 12 into close contact with the circumferential surface of the protector main body 11. Therefore, the protector 10 can reliably laminate the shield member 12 on the protector main body 11.

Furthermore, since the shield adhesive layer 15 that fixes the shield member 12 to the protector body 11 is provided, the protector 10 can stably maintain the state in which the shield member 12 is stacked on the protector body 11.
As a result, the protector 10 can reliably surround the wire harness W, thereby shielding electromagnetic noise generated in the wire harness W, and stably protecting the wire harness W from electromagnetic noise generated by electrical equipment. can.

Further, since the protector body 11 and the shield member 12 are fixed by the shield adhesive layer 15, the protector 10 can fix the shield member 12 to the protector body 11 with a simple structure.

Further, the protector main body 11 includes a base portion 111 having a concave cross-section extending along the longitudinal direction of the wire harness W, and a cover portion 112 covering an opening having a concave cross-section.
According to this configuration, the wire harness W can be inserted through the opening of the base portion 111, so that the protector 10 can be easily attached to, for example, an existing wire harness W.

Furthermore, since the opening of the base portion 111 is closed by the cover portion 112, the protector 10 can reliably surround the wire harness W with the shield member 12.
As a result, the protector 10 can shield electromagnetic noise generated in the wire harness W and protect the wire harness W from electromagnetic noise generated by electrical equipment, etc., without impairing the assemblability to the wire harness W. can.

The base portion 111 also includes a bottom portion 111a that faces the cover portion 112 with the wire harness W in between, and a pair of side wall portions 111b that stand from the end of the bottom portion 111a in the width direction Y toward the cover portion 112. It is formed with a concave cross section.
On the other hand, the cover part 112 is provided with an overlapping part 112b that overlaps one side wall part 111b when the opening of the base part 111 is closed.

According to this configuration, when the cover part 112 closes the opening of the base part 111, the overlapping part 112b of the cover part 112 overlaps the side wall part 111b of the base part 111, so that the protector main body 11 prevents foreign matter from entering the inside. Invasion can be suppressed.

Furthermore, since the protector 10 can surround the wire harness W with the shield member 12 without any gaps, stable shielding performance can be ensured even when the protector main body 11 is composed of the base part 111 and the cover part 112. I can do it.

Further, since the protector main body 11 is provided with a pivoting portion 113 that pivotally connects the cover portion 112 to the base portion 111, the protector 10 is Thus, the opening of the base portion 111 can be easily closed. Therefore, the protector 10 can improve ease of assembly to the wire harness W.

Furthermore, since the pivoting part 113 is formed by mountain-folding the thermoplastic resin foam sheet along the fold line 11a, and the cover part 112 is connected to the pivoting part 113, the protector 10 has a separate cover part. The number of parts can be reduced compared to the case of .

In addition, since a ground wire 14 is provided, which connects one end to the shield member 12 and the other end to the ground electrode, the protector 10 connects the electromagnetic noise absorbed by the shield member 12 to the ground via the ground wire 14. It can propagate to the poles and be removed. Therefore, the protector 10 can ensure more stable shielding performance.

Further, since the shield member 12 is exposed from the end opening in the longitudinal direction can be prevented from leaking to the outside from the end opening of the protector body 11, and electromagnetic noise can be prevented from entering the inside from the end opening of the protector body 11.
Thereby, the protector 10 can shield the electromagnetic noise generated in the wire harness W, and can more reliably protect the wire harness W from electromagnetic noise generated by electrical equipment and the like.

Further, the method for manufacturing the protector 10 of Example 1 includes a fixing step of laminating and fixing the shield member 12 on the surface of the protector body 11 made of a thermoplastic resin foam sheet, and a fixing step of laminating and fixing the shield member 12 on the surface of the protector body 11 made of a thermoplastic resin foam sheet, and a wire harness inside the protector body 11. A main body forming step is performed in which the W is formed into a cylindrical shape that can be inserted.

According to this configuration, since the shielding member 12 can be laminated on the protector main body 11, the method for manufacturing the protector 10 can shield electromagnetic noise generated in the wire harness W, and also protect the wire harness W from electromagnetic noise generated in electrical equipment. A protector 10 can be provided that protects.

Further, since the fixing step is a step of adhesively fixing the shield member 12 to the protector main body 11, the method for manufacturing the protector 10 can easily fix the shield member 12 to the protector main body 11.

The protector 10 of the second embodiment differs from the first embodiment described above in the fixing structure of the shield member 12 and the protection member 13. The protector 10 of Example 2 will be described with reference to FIGS. 5 and 6.
Note that FIG. 5 shows a cross-sectional view of the fixing structure of the shield member 12 and the protection member 13 in the second embodiment.

Furthermore, FIG. 6 is an explanatory diagram illustrating the outline of the fixing process, and FIG. (b) shows a sectional view of the protector 10 in a state where the engagement member 17 has started to be inserted into the protector main body 11.
Further, the same configurations as those in the first embodiment described above are denoted by the same reference numerals, and detailed explanation thereof will be omitted.

As shown in FIG. 5, the protector 10 of the second embodiment includes a protector body 11 made of a thermoplastic resin foam sheet, a shield member 12 and a protection member 13 laminated on the inner peripheral surface of the protector body 11, and a shield member. 12 and an engagement member 17 that fixes the protection member 13 to the protector main body 11 by engagement.

Specifically, the protector main body 11 of the protector 10 includes a plurality of engagement holes 114 into which the engagement members 17 engage, as shown in FIG. Although detailed illustration is omitted, the engagement hole 114 is formed as a through hole that is approximately circular in plan view.

As shown in FIG. 6(a), this engagement hole 114 has a large-diameter portion 114a located on the upper surface side of the protector body 11 on which the shield member 12 and the protection member 13 are stacked, and It is located on the lower surface side and is composed of a small diameter part 114b having a smaller diameter than the large diameter part 114a.

Further, the shield member 12 and the protection member 13 of the protector 10 are fixed to the protector body 11 so as to be sandwiched between the protector body 11 and the engagement member 17, as shown in FIG.
Further, as shown in FIGS. 5 and 6(a), the engaging member 17 of the protector 10 includes a head 171 accommodated in the large diameter portion 114a of the engagement hole 114, and a small diameter portion 141b of the engagement hole 114. The shaft portion 172 engages with the shaft portion 172.

As shown in FIGS. 5 and 6(a), the shaft portion 172 of the engagement member 17 has a diameter smaller than the large diameter portion 114a of the engagement hole 114 and slightly smaller than the small diameter portion 114b of the engagement hole 114. It has a large diameter and is formed into a substantially columnar body whose cross-sectional shape in a longitudinal section along the axial direction is an inverted tree shape. The irregularities on the circumferential surface of this shaft portion 172 are formed as an engaging portion 172a that engages with the small diameter portion 114b.

Next, the fixing process in the protector 10 having the above-described configuration will be briefly described using an example.
First, as shown in FIG. 6(a), an operator or an assembly device stacks the shield member 12 and the protection member 13 on top of each other in this order on the upper surface of the protector main body 11 in the unfolded state.

Thereafter, the operator or the assembly device inserts the engagement member 17 into the engagement hole 114 of the protector main body 11 in which the shield member 12 and the protection member 13 are stacked.
At this time, the shaft portion 172 of the engagement member 17 is inserted into the small diameter portion 114b of the engagement hole 114 while breaking through the shield member 12 and the protection member 13, as shown in FIG. 6(b).

When the engagement member 17 is further inserted into the engagement hole 114, the engagement portion 172a of the shaft portion 172 of the engagement member 17 starts to engage with the protector main body 11.
Then, when the head 171 of the engagement member 17 is accommodated in the large diameter portion 114a of the engagement hole 114, the operator or the assembly device completes insertion of the engagement member 17 into the engagement hole 114.

At this time, the head 171 of the engaging member 17 sandwiches the shield member 12 and the protection member 13 with the protector main body 11, and the shaft portion 172 engages with the inside of the protector main body 11, as shown in FIG.
In this way, the operator or the assembly device laminates and fixes the shield member 12 and the protection member 13 on the protector main body 11.

As described above, in the protector 10 of the second embodiment, the shield member 12 can be fixed by the engaging member 17 configured separately from the protector main body 11 engaging with the protector main body 11.
As a result, the protector 10 can easily and firmly fix the shield member 12 to the protector body 11, for example, compared to the case where the shield member 12 is adhesively fixed to the protector body 11.
Therefore, the protector 10 can more stably maintain the state in which the shield member 12 is stacked on the protector main body 11.

Furthermore, since the fixing step of the second embodiment is a step of overlapping the shield member 12 on the protector main body 11 and engaging the separately configured engagement member 17 with the protector main body 11 from the shield member 12 side, the protector 10 According to the manufacturing method, the shield member 12 can be easily fixed to the protector body 11 as the engaging member 17 is engaged with the protector body 11.

The protector 10 of the third embodiment differs from the first embodiment described above in the fixing structure of the shield member 12 and the protection member 13. The protector 10 of Example 3 will be described with reference to FIGS. 7 to 9.

In addition, FIG. 7 shows a cross-sectional perspective view of the fixing structure of the shield member 12 and the protective member 13 in Example 3, FIG. 8 shows a cross-sectional view of the fixing structure of the shield member 12 and the protective member 13, and FIG. 9 shows the upper side. 2 shows an exploded perspective view of the protector 10 as seen from above.

In addition, in FIGS. 7 and 8, for clarity, only the bottom portion 111a and one side wall portion 111b of the protector main body 11 are illustrated, and the illustration of the other side wall portion 111b and the cover portion 112 is omitted. .

Furthermore, in FIG. 9, only the bottom portion 111a of the protector main body 11 is shown for clarity.
Further, the same configurations as those in the first embodiment described above are denoted by the same reference numerals, and detailed explanation thereof will be omitted.

As shown in FIGS. 7 and 8, the protector 10 of the third embodiment includes a protector body 11 made of a thermoplastic resin foam sheet, a plurality of shield members 12 laminated on the inner peripheral surface of the protector body 11, and a plurality of shield members 12 laminated on the inner peripheral surface of the protector body 11. It includes a protection member 13 and a plurality of clamping members 18 that clamp and fix the shield member 12 and the protection member 13.

Note that, unlike the first embodiment, the shield member 12 and the protection member 13 are stacked on each of the bottom portion 111a of the protector body 11, the pair of side wall portions 111b, the cover body 112a, and the overlapping portion 112b.

Specifically, as shown in FIGS. 7 to 9, the shield member 12 of the protector 10 is a thin sheet-like member having conductivity and flexibility, and is attached to the inner peripheral surface of the protector body 11 to be laminated. On the other hand, they are formed into a substantially rectangular shape with substantially the same length in the longitudinal direction X and slightly shorter length in the direction perpendicular to the longitudinal direction X.

For example, as shown in FIG. 9, the shield member 12 has a size that is approximately the same length in the longitudinal direction X and slightly shorter in the width direction Y than the inner peripheral surface of the bottom portion 111a of the protector main body 11. is formed.

Further, as shown in FIGS. 7 to 9, the protection member 13 of the protector 10 is a flexible thin sheet-like resin sheet material, and is approximately the same size as the shield member 12 to be laminated. It is formed into a rectangle.
For example, the protection member 13 is formed to have substantially the same size as the shield member 12 laminated on the bottom portion 111a of the protector main body 11, as shown in FIG.

Further, as shown in FIGS. 7 to 9, the holding member 18 of the protector 10 is configured separately from the protector main body 11, and is fixed to one main surface, which is the inner circumferential surface of the protector main body 11, by adhesive, for example. ing. As shown in FIGS. 7 and 8, the holding members 18 are fixed to each inner circumferential surface of the protector main body 11 at both ends in a direction orthogonal to the longitudinal direction X.

Specifically, the holding members 18 have an elongated shape extending in the longitudinal direction X, and two holding members 18 are fixed to each inner circumferential surface of the protector main body 11. As shown in FIG. 8, the holding member 18 includes a base portion 18a fixed to the protector main body 11, and a substantially circular arc shape extending from one end of the base portion 18a to straddle the base portion 18a in a longitudinal section along the width direction Y. It is composed of an elastic piece portion 18b having elasticity.

Furthermore, as shown in FIG. 8, the elastic piece portion 18b of the clamping member 18 is formed to be able to clamp the shield member 12 and the protection member 13 with the protector body 11 in a state where it is fixed to the protector body 11.

Next, the assembly process of the protector 10 having the above-described configuration will be briefly described using an example. Note that the clamping member 18 is adhesively fixed in advance to the protector main body 11 in the unfolded state.

A worker or an assembly device stacks the shield member 12 and the protection member 13 in this order. Thereafter, the operator or the assembly device places the shield member 12 and the protective member between the protector body 11 and the elastic piece 18b of the clamping member 18 so that the shield member 12 contacts the upper surface of the protector body 11 in the unfolded state. Insert 13.

Then, the operator or the assembly device causes all the clamping members 18 to clamp the shield member 12 and the protection member 13.
In this way, the operator or the assembly device laminates and fixes the shield member 12 and the protection member 13 on the protector main body 11.

As described above, in the protector 10 of the third embodiment, since the fixing part is composed of the clamping member 18 that clamps the shield member 12 with the protector main body 11, the shield member 12 can be simply clamped by the clamping member 18. , the shield member 12 can be fixed to the protector main body 11.

As a result, the protector 10 can easily and firmly fix the shield member 12 to the protector body 11, for example, compared to the case where the shield member 12 is adhesively fixed to the protector body 11.
Therefore, the protector 10 can more stably maintain the state in which the shield member 12 is stacked on the protector main body 11.

Furthermore, since the fixing step of the third embodiment is a step of sandwiching and fixing the shield member 12 between the clamping members 18 provided on the protector main body 11, the method for manufacturing the protector 10 is such that the shield member 12 is clamped between the clamping members 18 and The shield member 12 can be easily fixed to the protector main body 11 by simply doing so.

The protector 10 of the fourth embodiment is different from the first embodiment described above in the fixing structure of the shield member 12 and the protection member 13. The protector 10 of the fourth embodiment will be described with reference to FIGS. 10 and 11.
Note that FIG. 10 shows a cross-sectional view of the fixing structure of the shield member 12 and the protection member 13 in Example 4.

Furthermore, FIG. 11 is an explanatory diagram illustrating the outline of the fixing process, and FIG. 11(a) shows a cross-sectional view of a state in which the shield member 12 and the protection member 13 are stacked on the upper surface of the protector main body 11 in the expanded state, FIG. 11(b) shows a cross-sectional view of a state where the internal locking portion 12c has started to be formed.
Further, the same configurations as those in the first embodiment described above are denoted by the same reference numerals, and detailed explanation thereof will be omitted.

As shown in FIG. 10, the protector 10 of Example 4 includes a protector body 11 made of a thermoplastic resin foam sheet, and a shield member 12 and a protection member 13 laminated on the inner peripheral surface of the protector body 11. There is.

Further, in the protector 10, as shown in FIG. 10, the protection member 13 is adhesively fixed to the shield member 12, and the shield member 12 is locked and fixed to the protector main body 11.

To be more specific, as shown in FIG. It is equipped as a fixed part to be fixed to.

As shown in FIG. 11, this internal locking portion 12c is formed by piercing the shield member 12 stacked on the protector body 11 with a sharp needle-like jig 3 toward the inside of the protector body 11. ing.

In other words, as shown in FIG. 10, the internal locking portion 12c is formed by piercing the needle jig 3, and is formed by a burr of the shield member 12 that is deformed into a shape that can be locked inside the protector main body 11. There is.

Next, the fixing process in the protector 10 having the above-described configuration will be briefly described using an example.
First, as shown in FIG. 11(a), an operator or an assembly device stacks the shield member 12, on which the protective member 13 is adhesively fixed, on the upper surface of the protector main body 11 in the unfolded state.

Thereafter, as shown in FIGS. 11(a) and 11(b), the operator or the assembly device inserts the needle-like jig 3 into the protection member 13 from above to below, so as to make a hole with the needle-like jig 3. Pierce tool 3. At this time, the needle-like jig 3 pierces the protective member 13, the shield member 12, and the protector main body 11 in this order, as shown in FIG. 11(b).

Then, as the needle jig 3 penetrates the shield member 12, the shield member 12 is burred toward the inside of the protector body 11, as shown in FIG. 10, thereby forming an internal locking portion 12c. Ru.

At this time, the internal locking portion 12c of the shield member 12 is stuck into the protector main body 11, and becomes locked to the protector main body 11.
In this way, the operator or the assembly device laminates and fixes the shield member 12 and the protection member 13 on the protector main body 11.

As described above, in the protector 10 of the fourth embodiment, the shield member 12 is provided with the internal locking part 12c that protrudes toward the protector main body 11 and is locked and fixed inside the protector main body 11, and the fixing part is composed of an internal locking portion 12c.

In addition, in the fixing step of the fourth embodiment, the needle-like jig 3 is pierced from the shield member 12 side at a plurality of locations on the protector main body 11 with the shield member 12 stacked on top of each other, and the shield member 12 is inserted into the protector main body 11. This is a step of forming an internal locking portion 12c that protrudes toward the outside and locking the internal locking portion 12c inside the protector body 11.

According to this configuration, the protector 10 can fix the shield member 12 to the protector main body 11 by the internal locking portion 12c of the shield member 12.
Thereby, the protector 10 can eliminate the need for a separate fixing part from the protector main body 11 and the shield member 12, so that the shield member 12 can be fixed to the protector main body 11 while suppressing an increase in weight.

The wire harness with protector 4 of the fifth embodiment differs from the first embodiment described above in the structure of the protector. The wire harness with protector 4 of Example 5 will be described with reference to FIGS. 12 to 17.

Note that FIG. 12 shows a perspective view of the outer appearance of the wire harness with protector 4 in Example 5, FIG. 13 shows a sectional view taken along the line BB in FIG. 12, and FIG. 14 shows the outer appearance of the protector main body 21 separated. A perspective view is shown.
Furthermore, FIG. 15 shows a sectional view of the vicinity of the connector C in a longitudinal section along the longitudinal direction X, and FIG. 16 shows an external perspective view of the protection member 23.

In addition, FIG. 17 is an explanatory diagram illustrating the outline of the fixing process, FIG. 17(a) is a cross-sectional view illustrating the process of overlapping the overlapping part 214 on the protection member 23, and FIG. 17(b) is an explanatory diagram illustrating the fixing process. A cross-sectional view illustrating a step of overlapping the portion 212 with the overlapping portion 214 is shown.
Further, the same configurations as those in the first embodiment described above are denoted by the same reference numerals, and detailed explanation thereof will be omitted.

As shown in FIG. 12, the wire harness with protector 4 of Example 5 includes a wire harness W extending along the longitudinal direction X and a protector 20 into which the wire harness W is inserted.
As shown in FIG. 12, the wire harness W of Example 5 includes a connector C at one end in the longitudinal direction X, which is electrically connected to a connector (not shown) of an electric device.

Further, as shown in FIGS. 13 and 14, the protector 20 includes a substantially cylindrical protector main body 21 in which a wire harness W is inserted into an internal space (numerals omitted) extending in the longitudinal direction X, and an inner periphery of the protector main body 21. It includes a shield member 22 laminated on a surface and a protection member 23 that protects the shield member 22.
As shown in FIG. 15, this protector 20 accommodates a wire harness W and a base end portion of a connector C inside a protector main body 21.

Specifically, as shown in FIG. 13, the protector main body 21 of the protector 20 has a cylindrical shape with a substantially rectangular cross section extending in the longitudinal direction It is formed by mountain folding along a fold line (not shown) extending in the direction of .

As shown in FIG. 13, such a protector main body 21 includes a base portion 211 having a generally concave cross section with an open upper portion, a cover portion 212 that closes the opening of the base portion 211, and a cover portion that is connected to the base portion 211. 212 , and an overlapping portion 214 that overlaps with the cover portion 212 inside the base portion 211 .

Specifically, as shown in FIG. 13, the base portion 211 of the protector main body 21 includes a bottom portion 211a having a thickness in the vertical direction, and a pair of base portions 211a extending upward from both ends of the bottom portion 211a in the width direction Y. A side wall portion 211b is provided.
The base portion 211 has a pair of side wall portions 211b connected to both ends of the bottom portion 211a in the width direction Y in the protector main body 21 in the unfolded state.

Further, as shown in FIG. 13, the cover portion 212 of the protector main body 21 is formed into a substantially flat plate shape that overlaps the upper surface of an overlapping portion 214, which will be described later, when the protector main body 21 is in a cylindrical state.
Specifically, the cover portion 212 is connected to one end of the other side wall portion 211b in the width direction Y via the pivot portion 213 in the protector main body 21 in the expanded state.

Moreover, the pivoting part 213 of the protector main body 21 pivotally connects the other side wall part 211b of the base part 211 and the cover part 212, as shown in FIG. The pivot portion 213 is formed of a portion that is mountain-folded along a crease provided at the boundary between the other side wall portion 211b and the cover portion 212 in the unfolded state.

Moreover, the overlapping portion 214 of the protector main body 21 is pivotally connected to one end of the one side wall portion 211b in the width direction Y in the protector main body 21 in the expanded state. As shown in FIG. 13, when the protector main body 21 is in a cylindrical state, this overlapping part 214 is arranged so that the thickness direction is in the vertical direction, the upper surface overlaps the inner circumferential surface of the cover part 212, and the lower surface are arranged so as to overlap the upper surface of the protection member 23.

Further, the shield member 22 of the protector 20 is in the form of a thin sheet having conductivity and flexibility, and is made of, for example, aluminum foil, copper foil, or conductive cloth. The shield member 22 is formed into a substantially rectangular sheet shape in plan view and has substantially the same length in the longitudinal direction X and length in the width direction Y as the protector main body 21 in the unfolded state.

Further, as shown in FIGS. 13 and 14, the protection member 23 of the protector 20 has a cylindrical shape with a rectangular cross section extending in the longitudinal direction X, and is made of the same thermoplastic resin foam sheet as the protector body 21.
As shown in FIG. 13, the protective member 23 is formed in an external shape large enough to allow the shield member 22 to be held between the protector body 21 and the protector body 21 inside the protector body 21.

As shown in FIGS. 13 and 14, such a protection member 23 includes a protection base portion 231 having a generally concave cross-section with an upper opening, and a protection cover portion 232 that closes the upper opening of the protection base portion 231. A protection pivot portion 233 is provided to pivotally connect the protection cover portion 232 to the protection base portion 231.

Specifically, as shown in FIG. 13, the protective base portion 231 of the protective member 23 includes a protective bottom portion 231a facing the upper opening, and a pair of protective base portions 231a that stand up from both ends of the protective bottom portion 231a in the width direction Y. It includes a protective side wall portion 231b and a wire holding portion 231c to which the wire harness W is fixed with adhesive tape 2.

When the protective base portion 231 is unfolded into a flat plate shape, a pair of protective side wall portions 231b are connected to both ends of the protective bottom portion 231a in the width direction Y, and a wire holding portion 231c is connected to the protective bottom portion 231a in the longitudinal direction X. It is connected to one end of the.
Note that the wire holding portion 231c is formed into a substantially flat plate that continues from the protective bottom portion 231a in one direction in the longitudinal direction X, as shown in FIG.

Furthermore, as shown in FIGS. 14 and 16, one protective side wall portion 231b has a fitting protrusion 234 that protrudes upward from the upper end surface in an inverted trapezoidal shape when standing upright with respect to the protective bottom portion 231a. are formed in plurality at predetermined intervals in the longitudinal direction X.

Further, the protective cover portion 232 of the protective member 23 is connected to the other side wall portion 211b via a protective pivot portion 233, as shown in FIG. As shown in FIGS. 14 and 16, a fitted portion 235 into which the fitting protrusion 234 of the protective base portion 231 is fitted is provided on the end surface of the protective cover portion 232 in the width direction Y at a predetermined position in the longitudinal direction They are recessed at intervals.

Further, similarly to the pivoting portion 213 of the protector main body 21, the protection pivoting portion 233 of the protection member 23 has a peak along the fold provided at the boundary between the other protection side wall portion 231b and the protection cover portion 232 in the unfolded state. It is made up of folded parts.

Next, the assembly process of the wire harness with protector 4 having the above-described structure will be briefly described using an example.
First, an operator or an assembly device forms the protection base portion 231 by mountain-folding the unfolded protection member 23 made of a thermoplastic resin foam sheet along the fold line.

Further, the operator or the assembly device accommodates the wire harness W inside the protection base portion 231 and then rotates the protection cover portion 232 of the protection member 23 to close the opening of the protection base portion 231.
At this time, the operator or the assembly device fixes the protective cover part 232 to the protective base part 231 by fitting the fitting protrusion 234 of the protective base part 231 into the fitted part 235 of the protective cover part 232. Thus, a cylindrical protection member 23 is constructed.

Thereafter, the operator or the assembly device fixes the wire harness W to the wire holding portion 231c of the protection member 23 using the adhesive tape 2.
When the wire harness W is accommodated and fixed inside the protection member 23, the operator or the assembly device performs a main body forming step of forming the protector main body 21 in the expanded state into a cylindrical shape into which the wire harness W can be inserted, and a shield. A fixing process for stacking and fixing the member 22 on the protector body 21 is started.

Note that the shield member 22 is temporarily fixed in advance to the end of the cover part 212 and the end of the overlapping part 214 with an adhesive or the like on the upper surface of the protector main body 21 in the unfolded state.
Specifically, as shown in FIG. 14, the operator or the assembly device forms the base portion 211 by mountain-folding the protector main body 21 in the unfolded state along the crease.

Thereafter, as shown in FIGS. 14 and 17(a), the operator or assembly device inserts the wire harness W together with the protection member 23 through the opening of the base part 211 in the protector main body 21, and inserts the wire harness W into the bottom part of the base part 211. The protection member 23 is placed on 211a.

Furthermore, as shown in FIG. 17(a), the operator or the assembly device mountain-folds the overlapping portion 214 of the protector body 21 along the crease and stacks it on the top surface of the protection member 23. Thereafter, the operator or the assembly device rotates the cover part 212 of the protector body 21 about the pivot part 213 to overlap the top surface of the overlapping part 214, as shown in FIG. 17(b).

Then, the operator or the assembly device wraps the adhesive tape 2 around the outer peripheral surface of the protector 20 and fixes the cover part 212 to the base part 211 to form the cylindrical protector 20. At this time, the shield member 22 is sandwiched between the protection member 23 and the protector main body 21 and is fixed to the protector main body 21 in a stacked state.
In this way, the operator or the assembling device completes the assembling work of the wire harness 4 with the protector.

As described above, the protector 20 of Example 5 includes the cylindrical protector body 21 made of a thermoplastic resin foam sheet, and the shield member 22 laminated on the inner peripheral surface of the protector body 21. .
Therefore, the protector 20 and the wire harness with protector 4 shield the electromagnetic noise generated in the wire harness W, as well as protect the wire harness W from electromagnetic noise generated by electrical equipment, etc., as in the first embodiment described above. be able to.

Furthermore, since the protection member 23 is made of the same thermoplastic resin foam sheet as the protector body 21, the protector 20 can protect the shield member 22 with less weight increase than, for example, a metal protection member. I can do it.

The base portion 211 also includes a bottom portion 211a that faces the cover portion 212 with the wire harness W in between, and a pair of side wall portions 211b that stand up from the end of the bottom portion 211a in the width direction Y toward the cover portion 212. It is formed with a concave cross section.

The protector main body 21 includes a pivot portion 213 that pivotally connects the cover portion 212 to one side wall portion 211b, and a pivot portion 213 that is pivotally connected to the other side wall portion 211b. An overlapping portion 214 that overlaps with the cover portion 212 is provided.

According to this configuration, since the cover part 212 overlaps the overlapping part 214 when the cover part 212 closes the opening of the base part 211, the protector main body 21 can suppress foreign matter from entering into the protector main body 21.

Furthermore, since the protector 20 can surround the wire harness W with the shield member 22 without any gaps, stable shielding performance can be ensured even when the protector main body 21 is composed of the base part 211 and the cover part 212. I can do it.

In addition, the pivoting part 213 is formed by mountain-folding the thermoplastic resin foam sheet along the crease, and the cover part 212 is connected to the pivoting part 213, so the protector 20 has a separate cover part. The number of parts can be reduced compared to the case of .

Further, in the wire harness with a protector 4 of Example 5, a connector C that is electrically connected to an electric device is provided at the tip of the wire harness W in the longitudinal direction is housed in.

According to this configuration, a part of the connector C is housed inside the protector main body 21, so the wire harness with protector 4 prevents leakage of electromagnetic noise generated near the connection point with the connector C, and also prevents the wire harness from leaking. The vicinity of the connection point between the harness W and the connector C can be protected from electromagnetic noise.

Furthermore, since the protector 20 supports the connection point between the wire harness W and the connector C, the wire harness with protector 4 can prevent the wire harness W from unintentionally bending in the vicinity of the connector C.

Further, in the fixing step of Example 5, the protective member 23, which is made of a resin sheet material and protects the shield member 22, is housed inside the protector body 21, and the shield member 22 is sandwiched between the protector body 21 and fixed. Therefore, in the method for manufacturing the protector 20, the shield member 22 can be fixed to the protector main body 21 as the protection member 23 is accommodated.

In the correspondence between the configuration of this invention and the above-described embodiments,
The resin sheet material of this invention corresponds to the thermoplastic resin foam sheet of the embodiment,
Similarly below,
The exterior main body corresponds to the protector main bodies 11 and 21,
The shield exterior member corresponds to the protectors 10 and 20,
The fixing part corresponds to the shield adhesive layer 15, the engaging member 17, the clamping member 18, and the internal locking part 12c,
The adhesive layer corresponds to the shield adhesive layer 15,
The clamping portion corresponds to the clamping member 18,
The direction perpendicular to the longitudinal direction corresponds to the width direction Y,
The conductive member corresponds to the ground wire 14,
The wire harness with exterior member corresponds to the wire harness with protector 1 and 4, but
This invention is not limited to the configuration of the above-described embodiments, and can be implemented in many other embodiments.

Specifically, in the embodiments described above, the protector bodies 11 and 21 are cylindrical with a substantially rectangular cross section; however, the protector bodies 11 and 21 are not limited to this, but may have a cylindrical shape with a substantially polygonal cross section or a cylindrical shape with a substantially circular cross section. It's okay.
Further, the base portions 111, 211 of the protector bodies 11, 21 are not limited to the concave cross-sectional shape consisting of the bottom portions 111a, 211a and the pair of side wall portions 111b, 211b, but may have a concave cross-section having a substantially semicircular arc shape, or a concave cross-sectional shape having a substantially semicircular cross-section. It may have a U-shaped concave cross-section, or a generally V-shaped concave cross-section.

Furthermore, although the shield members 12 and 22 are laminated on the inner circumferential surfaces of the protector bodies 11 and 21, the present invention is not limited to this, and a protector may be provided in which a shield member is laminated on the outer circumferential surface of the protector bodies. In this case, the protective member is laminated on the shield member so as to surround the shield member outside the protector main body.

Alternatively, the protector may have a shield member laminated on the inner peripheral surface and the outer peripheral surface of the protector body. Alternatively, the protector body may be made of a thermoplastic resin foam sheet with a shielding member laminated therein.

Further, although the shield members 12 and 22 are arranged so as to be in close contact with the inner circumferential surfaces of the protector bodies 11 and 21, the present invention is not limited to this, and the shield members may be partially separated from the circumferential surfaces of the protector bodies. Good too.

In addition, although the shield members 12 and 22 are made of, for example, aluminum foil, copper foil, or conductive cloth, they are not limited thereto, and may be made of a shield member having an aluminum layer or a rubber sheet made of elastomer or the like having shielding performance. It may also be a shield member etc. Note that the shield member is not limited to a thin sheet shape, but may be a thin film shape formed by coating.

Further, although the protectors 10 and 20 are provided with the protection members 13 and 23, the present invention is not limited thereto, and a protector in which only a shield member is laminated on the protector body may be used.

Further, although the base portions 111, 211 and the cover portions 112, 212 are fixed using the adhesive tape 2, the present invention is not limited to this. The base part and the cover part may be fixed. Alternatively, like the protection member 23 of the fifth embodiment, the base portion and the cover portion may be fixed by fitting together.

Although the protector main bodies 11 and 21 have cover parts 112 and 212 pivotally connected to base parts 111 and 211, the present invention is not limited to this, and the protector main bodies have the base part and the cover part configured separately. It may be.

For example, as shown in FIG. 18, which is a cross-sectional view of the protector main body 31 in another embodiment, the protector main body 31 includes a base portion 311 having a generally concave cross section with an open upper part, and a cover portion 312 that closes the opening of the base portion 311. It may be composed of.

More specifically, the base portion 311 of the protector main body 31 is formed with a bottom portion 311a and a pair of side wall portions 311b to have a substantially concave cross section, and the shield member 12 and the protection member 13 are laminated on the inner peripheral surface thereof.

On the other hand, as shown in FIG. 18, the cover part 312 of the protector main body 31 has a cover main body 312a facing the bottom part 311a of the base part 311, a cover main body 312a that is vertically disposed downward from both ends of the cover main body 312a in the width direction Y, and a side wall of the cover main body 312a. A pair of overlapping parts 312b that overlap with the part 311b are provided.

Similarly to the base part 311, the shield member 12 and the protection member 13 are laminated on the cover part 312, spanning the lower surface of the cover main body 312a and the surface of the overlapping part 312b facing the side wall part 311b. .
Even with such a configuration, the protector can produce the same effects as the above-described embodiment.

Further, in Example 1, after the shield member 12 and the protection member 13 were attached to the protector main body 11 in the unfolded state, the protector main body 11 was mountain-folded along the fold line 11a to form a cylindrical shape. First, the shield member 12 and the protection member 13 may be attached to the protector main body 11 which is formed into a cylindrical shape along the fold line 11a.
Alternatively, the shield member 12 to which the protective member 13 is attached may be attached to the protector body 11 in an expanded state or to the protector body 11 formed into a cylindrical shape.

In addition, in the first embodiment, the shield member 12 is fixed to the protector body 11 by pasting the shield member 12 to the protector body 11 coated with adhesive, but the fixing method is not limited to this. On the other hand, a fixing method may be used in which the shield member is fixed by ultrasonic welding.

Alternatively, a fixing method may be used in which a thermoplastic shield member is superimposed on the protector main body, and then the shield member is heated and thermally welded to the protector main body.
Even with such a fixing method, the method for manufacturing a shield exterior member can easily fix the shield member to the exterior body.

In addition, in the second embodiment, the engagement member 17 was configured to engage with the engagement hole 114 of the protector main body 11, but the present invention is not limited to this. For example, while locking the engagement hole like a tapping screw, It may also be an engagement member that engages with the protector main body 11.

In addition, although the engaging member 17 has the shaft portion 172 having an inverted tree-shaped cross section, the present invention is not limited to this, and any suitable configuration may be used as long as it can be engaged with the engaging hole 114 of the protector main body 11. .
For example, as shown in FIG. 19(a), which is an explanatory diagram illustrating the outline of a fixing structure in another embodiment, a locking member 19 may have a locking claw 19a protruding radially outward at its tip. In this case, the locking claw 19a of the locking member 19 passes through the engagement hole 114 and is locked to the lower surface of the protector main body 11, as shown in FIG. 19(b).

Furthermore, in the third embodiment, the clamping member 18 is separate from the protector main body 11, but the present invention is not limited to this, and the clamping member may be integrally formed with the protector main body.
Further, in Example 5, the protective member 23 was constructed from the same thermoplastic resin foam sheet as the protector main body 21, but the protection member 23 is not limited to this, and the protective member 23 can be constructed from a different thermoplastic resin foam sheet from the protector main body 21. It's okay.

In addition, in the fifth embodiment, the wire harness 4 with a protector has the wire harness W and the proximal end portion of the connector C accommodated inside the protector main body 21, but the protector is not limited to this, and the protector in another embodiment As shown in FIG. 20 showing a perspective view of the outer appearance of the wire harness 4 with a protector, the end of the protector 20 in the longitudinal direction X is the wire harness 4 with a protector inserted into the connector C2 provided at one end of the wire harness W. It's okay.

According to this configuration, the end of the protector main body 21 in the longitudinal direction At the same time, the vicinity of the connection point between the wire harness W and the connector C2 can be protected from electromagnetic noise.

Further, in the fifth embodiment, the protective member 23 formed in a cylindrical shape with a substantially rectangular cross section is housed inside the protector main body 21, but the present invention is not limited thereto.
For example, in the process of laminating a shield member and a protective member made of a thermoplastic resin foam sheet on a protector body in an expanded shape, and forming the protector body into a cylindrical state, the cylindrical protective member is inside the protector body. It may also be configured to be molded into. In this case, the protective member may have a configuration in which the protective bottom, the pair of side walls, and the protective cover are each independent.

1, 4... Wire harness with protector 3... Needle jig 10, 20... Protector 11, 21, 31... Protector body 12, 22... Shield member 12c... Internal locking part 13, 23... Protective member 14... Earth wire 15 ...Shield adhesive layer 17...Engagement member 18...Snipping member 19...Locking member 111, 211, 311...Base part 111a, 211a, 311a...Bottom part 111b, 211b, 311b...Side wall part 112, 212, 312...Cover part 112b , 214, 312b... Overlapping portion 113, 213... Pivoting portion C, C2... Connector W... Wire harness X... Longitudinal direction Y... Width direction

Claims (26)

A cylindrical exterior body made of resin sheet material, into which a wire harness is inserted,
A shield exterior member comprising: a shield member laminated on a peripheral surface of the exterior body. A protection member that protects the shield member is provided,
The shield exterior member according to claim 1, wherein the shield member is arranged between the exterior main body and the protection member. The shield exterior member according to claim 2, wherein the protective member is made of a resin sheet material. The shield exterior member according to any one of claims 1 to 3, wherein the shield member is sheet-shaped. The shield exterior member according to claim 1, further comprising a fixing portion that fixes the shield member to the exterior main body. The fixed part is
The shield exterior member according to claim 5, comprising an adhesive layer formed between the exterior main body and the shield member. The fixed part is
The shield exterior member according to claim 5, comprising an engaging member that is configured separately from the exterior body and fixes the shield member by engaging with the exterior body. The fixed part is
The shield exterior member according to claim 5, comprising a clamping portion that clamps the shield member with the exterior main body. The shield member is
An internal locking portion is provided that protrudes toward the exterior main body and is locked and fixed inside the exterior main body,
The shield exterior member according to claim 5, wherein the fixing part is comprised of the internal locking part. The exterior main body is
a base portion having a concave cross-section and extending along the longitudinal direction of the wire harness;
The shield exterior member according to claim 1, further comprising a cover portion that covers the opening having a concave cross-section. The base portion is
a bottom portion facing the cover portion with the wire harness sandwiched therebetween;
a pair of side walls extending vertically from an end of the bottom in a direction perpendicular to the longitudinal direction toward the cover, and having a concave cross-section;
The cover part is
The shield exterior member according to claim 10, further comprising an overlapping portion that overlaps at least one of the pair of side wall portions when the opening of the base portion is closed. The exterior main body is
The shield exterior member according to claim 10 or 11, further comprising a pivoting portion that pivotally connects the cover portion to the base portion. The base portion is
a bottom portion facing the cover portion with the wire harness sandwiched therebetween;
a pair of side walls extending from an end in a direction perpendicular to the longitudinal direction of the bottom portion toward the cover portion, and having a concave cross-sectional shape;
The exterior main body is
a pivoting part that pivotally connects the cover part to one of the side wall parts;
The shield exterior member according to claim 10, further comprising an overlapping portion that is pivotally connected to the other side wall portion and overlaps with the cover portion inside the exterior main body. The shield exterior member according to claim 1, further comprising a conductive member having one end connected to the shield member and the other end connected to a ground electrode. The shield member is
The shield exterior member according to claim 1, wherein the shield exterior member is exposed from an end opening in the longitudinal direction of the exterior main body. The shield exterior member according to claim 1;
A wire harness with an exterior member including a wire harness inserted into the inside of the shield exterior member. A connector electrically connected to a connection target is provided at a longitudinal end of the wire harness,
The wire harness with an exterior member according to claim 16, wherein a part of the connector is housed inside the exterior main body. A connector electrically connected to a connection target is provided at a longitudinal end of the wire harness,
The wire harness with an exterior member according to claim 16, wherein a longitudinal end of the exterior main body is inserted into the connector. A fixing step of laminating and fixing the shield member on the surface of the exterior body made of resin sheet material;
A method for manufacturing a shield exterior member, comprising: forming the exterior body into a cylindrical shape into which a wire harness can be inserted. The fixing step includes:
20. The method for manufacturing a shield exterior member according to claim 19, wherein the step includes adhesively fixing the shield member to the exterior body. The fixing step includes:
20. The method for manufacturing a shield exterior member according to claim 19, wherein the step includes superimposing the shield member on the exterior body and engaging a separate engaging member with the exterior body from the shield member side. The fixing step includes:
20. The method for manufacturing a shield exterior member according to claim 19, wherein the step includes sandwiching and fixing the shield member between clamping portions provided on the exterior body. The fixing step includes:
20. The shield according to claim 19, which is a step of accommodating a protection member made of a resin sheet material and protecting the shield member inside the exterior main body, and sandwiching and fixing the shield member with the exterior main body. Method for manufacturing exterior parts. The fixing step includes:
20. The method of manufacturing a shield exterior member according to claim 19, wherein the step is ultrasonically welding the shield member to the exterior main body. The fixing step includes:
20. The method for manufacturing a shield exterior member according to claim 19, wherein the step includes superimposing the thermoplastic shield member on the exterior body and heating and thermally welding the shield member. The fixing step includes:
A needle-like jig is pierced into the exterior main body in which the shield members are overlapped at a plurality of locations from the shield member side, and an internal locking portion is provided in the shield member protruding toward the inside of the exterior main body. 20. The method of manufacturing a shield exterior member according to claim 19, further comprising forming the internal locking portion and locking the internal locking portion inside the exterior body.

Images