JP2011055566A - Structure and method for routing wire harness and alternative member for coating the wire harness - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a low-cost structure and method for routing a wire harness for protecting the wire harness from burr or edges. <P>SOLUTION: A welding burr 9, which is a local section of the member to be routed 2, could damage a wire harness 1 if it contacts to a coating of an electric cable 4. Accordingly, an alternative member for coating 3 is provided to protect the wire harness 1. The alternative member for coating 3 is provided on a welded section 8 so as to prevent the wire harness 1 from contacting to the welding burr 9. More specifically, the alternative member for coating 3 is provided so as to cover the welding burr 9. The wire harness 1 does not require any protector, which significantly reduces the cost. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a structure and method related to the wiring harness wiring, and an exterior replacement part / member used in the structure and method.

  A wire harness (wire bundle) formed by bundling a plurality of electric wires is routed in a vehicle such as an automobile. Moreover, the wire harness is wired not only in the vehicle but also in an electronic device having a movable part, such as a copying machine. Hereinafter, a wire harness in which the routing target is a vehicle will be described as an example.

  A protector made of synthetic resin is provided at a necessary place of the wire harness (see, for example, Patent Document 1 below). The protector is intended to accommodate the wire harness and protect the wire harness in the accommodation portion. The protector includes a protector main body serving as a portion that accommodates the wire harness, and a protector cover that covers the protector main body. The protector after the wire harness is accommodated is fixed to, for example, a vehicle panel member, a lean hose, or the like along with the wiring harness.

  Since the wire harness is protected by a protector, even if vibration is transmitted, for example, when the vehicle travels, burrs (burrs generated by welding or burrs generated by cutting) generated during the manufacture of panel members or lean hoses, edge portions, It does not interfere with the reinforcing ribs and the like, and as a result, damage to the wire harness itself is prevented.

  In addition, instead of the protector, a corrugated tube, a vinyl sheet, or a twist tube is also generally used for protection.

JP 2002-125306 A

  By the way, the above prior art has the following problems. That is, the protector itself may be formed into a long one that extends to a place where there is no need for protection, and this causes a problem of increasing the cost (corrugated tube, vinyl sheet). The same problem occurs when a twist tube is used).

  There is no need to use an exterior member (protective member) such as a protector without the presence of the burrs and edge portions, but burrs and edge portions are present, and it is difficult to suppress this occurrence. It is. As a countermeasure, removal of burrs and edge portions can be considered, but in this case, a large number of work steps are required and it can be said that this is not an effective countermeasure.

  In addition, an exterior member such as a protector has a problem that a sufficient installation space must be ensured when wiring the wire harness. Further, the exterior member has a problem that it takes time to assemble the wire harness. Furthermore, the exterior member has problems of increasing the number of parts, increasing the weight, and increasing the size of the wire harness by being assembled to the wire harness.

  The present invention has been made in view of the above circumstances, and provides a wire harness routing structure and method that can be protected at a low cost when protecting the wire harness from burrs, edge portions, and the like. Let it be an issue. It is another object of the present invention to provide an exterior replacement part / member suitable for use in a wire harness wiring structure and method.

  The wire harness routing structure of the present invention according to claim 1, which has been made in order to solve the above-described problem, has a local area existing at a position in line with a wire harness routing path in a routing target member as the routing target member. The generated convex local, concave local, or edge-edge local is provided, and an exterior replacement part / member is provided in the local, while a part of the wire harness facing the exterior replacement part / member is an exterior-less part. And it forms as a non-holding part, It is characterized by the above-mentioned.

  The wire harness wiring structure of the present invention according to claim 2 is the wire harness wiring structure according to claim 1, wherein the exterior substitute part / member can be bent and / or collapsed. It uses the thing which has property.

  A wire harness wiring structure according to a third aspect of the present invention is characterized in that, in the wire harness wiring structure according to the second aspect, the exterior substitute portion / member is formed in a structure composed of a plurality of layers.

  The wire harness routing structure of the present invention according to claim 4 is the wire harness routing structure according to claim 3, wherein the outermost layer of the exterior substitute part / member consisting of the plurality of layers is in contact with the wire harness. A protective layer that protects and an adhesive layer that is opposite to or adjacent to the protective layer is an adhesive layer that arrives at or near the local area, and absorbs an impact received from the wire harness between the protective layer and the adhesive layer. A layer is provided.

  The wire harness wiring structure of the present invention according to claim 5 is the wire harness wiring structure according to claim 1, wherein the exterior replacement part / member is made of a material that solidifies from a liquid state, and is liquefied. A material that solidifies or a material that softens after being softened is used.

  The wire harness wiring structure of the present invention according to claim 6 is the wire harness wiring structure according to claim 1, wherein the local area covers or surrounds the local area when the local area is the convex local area or the concave local area. The exterior replacement part / member is provided in a state.

  The wire harness wiring structure of the present invention according to claim 7 is the wire harness wiring structure according to claim 1, wherein the local area is covered or fitted when the local area is the edge-edge local area. The exterior replacement part / member is provided.

  The wire harness routing method of the present invention according to claim 8, which has been made to solve the above-described problems, is configured to assign a local area present at a position in accordance with a wire harness routing path in the routing target member to the routing target member. The resulting convex local, concave local, or edge-edge local is provided, and an exterior replacement part / member is provided in the local area, and a part of the wire harness facing the exterior replacement part / member is exterior-less. A step of forming the wire harness as a portion and a non-holding portion, and a step of routing the wire harness so that the portion is opposed to the exterior substitute portion / member.

  The exterior substitute part / member of the present invention according to claim 9, which has been made to solve the above-described problem, is configured to assign a local portion present at a position according to a wire harness routing route in the routing target member to the routing target member. The generated convex locality, concave locality, or edge-edge locality is provided, and is provided in a state of covering, surrounding, or fitting into such locality.

  According to the present invention having the above-described features, the wire harness is protected without providing an exterior member on the wire harness side. Specifically, the exterior replacement part / member is provided only locally on the member to be wired on the side where the wire harness is routed, while the wire harness does not hold the part corresponding to the exterior replacement part / member and does not hold the exterior replacement part / member. It is only necessary to form it as a part, and this makes it possible to protect the wire harness at a low cost and to protect the wire harness in a space-saving manner. Since it is only necessary to provide the exterior replacement part / member only in the local area of the member to be routed, it is possible to make it structurally small.

  According to the present invention, as a process before wiring harness, it is only necessary to provide the exterior replacement part / member locally on the wiring target member. On the other hand, there is no need to do anything. Therefore, it is possible to protect the wire harness at a low cost without man-hours.

  According to the present invention, the exterior substitute part / member has a function corresponding to the exterior member (protective member) provided in the conventional wire harness.

  According to the first aspect of the present invention, in protecting the wire harness, there is an effect that it is possible to provide a wire harness routing structure that can be protected at low cost.

  According to the second aspect of the present invention, there is an effect that it is possible to cope with the locality with flexibility. Moreover, there exists an effect that it can respond to an impact from a wire harness, etc. by responding to a local shape by crushing.

  According to the third aspect of the present invention, there is an effect that the effect of the second aspect can be easily achieved by forming the exterior replacement portion / member with a structure including a plurality of layers.

  According to the present invention described in claim 4, there is an effect that it is possible to provide a suitable example of a structure composed of a plurality of layers.

  According to the present invention described in claim 5, there is an effect that it is possible to provide a preferable example in the case where the local part is made another part by the solidified exterior substitute part / member.

  According to the present invention described in claim 6, when the exterior replacement part / member is provided in the convex local area or the concave local area, it is only necessary to cover or surround the local area. -There exists an effect that size reduction of a member can be achieved.

  According to the present invention described in claim 7, when the exterior substitute part / member is provided in the edge edge-shaped local area, it is only necessary to cover or fit the local area, thereby improving workability. There is an effect that can be done.

  According to the eighth aspect of the present invention, there is an effect that it is possible to provide a wire harness routing method capable of protecting at low cost when protecting the wire harness.

  According to the present invention described in claim 9, there is an effect that it is possible to provide an exterior replacement part / member suitable for use in the wire harness wiring structure and method.

BRIEF DESCRIPTION OF THE DRAWINGS It is a figure (Example 1) which concerns on this invention, (a) is a figure which shows a wire harness wiring state, (b) is the exterior alternative member of (a), and a local perspective view. It is a figure (Example 2) which concerns on this invention, and is sectional drawing which shows a wire harness wiring state. It is explanatory drawing at the time of providing the exterior alternative part of FIG. 2 locally. It is a figure (Example 3) which concerns on this invention, (a) is sectional drawing which shows a wire harness wiring state, (b) is a perspective view of the exterior alternative member of (a). It is a figure (Example 4) which concerns on this invention, (a) is a figure which shows the state just before providing an exterior alternative part and member locally, (b) is a figure which shows the state which provided the exterior alternative part locally. is there. It is a figure (Example 5) which concerns on this invention, (a) is a figure which shows the state just before providing an exterior alternative part locally, (b) is a figure which shows the state which provided the exterior alternative part locally.

  An exterior replacement part / member that is provided locally at a position that matches the wiring harness routing path of the wiring target member and that can avoid contact between the local harness and the wire harness is provided on the wiring harness. Used for routing.

  The first embodiment will be described below with reference to the drawings. FIGS. 1A and 1B are diagrams (Example 1) according to the present invention, in which FIG. 1A is a diagram illustrating a wiring harness wiring state, and FIG.

  In FIG. 1, reference numeral 1 is a wire harness, reference numeral 2 is a wiring target member that is a wiring target of the wire harness 1, and reference numeral 3 is an exterior replacement member provided on the wiring target member 2 side (Claims). It corresponds to the exterior substitute part / member described in the above).

  The wire harness 1 is formed by bundling a plurality of electric wires 4, and tape winding 5 is applied so that the electric wires 4 are not separated. The illustrated wire harness 1 is a trunk portion, and a plurality of electric wires 4 are bundled in a substantially circular cross section. A branch line (not shown) is branched from the main line portion at a predetermined position. A connector (not shown) for connection is provided at the terminal portion of the wire harness 1. The wire harness 1 is fixed to the wiring target member 2 with a clip or the like (not shown in the drawing; the locking member 21 for wiring in FIG. 2 serves as a reference) in accordance with the fixed position. The wire harness 1 is routed at a predetermined distance from the surface 6 of the routing target member 2.

  As described above, the wiring target member 2 is a member that is a wiring target of the wire harness 1, and the wiring harness 1 of the present embodiment is routed to the vehicle. A hose shall be mentioned as an example of the wiring object member 2 (it shall not be this limitation. For example, a panel member, a body, etc. may be sufficient).

  A welded portion 8 with the member to be welded 7 exists on the route for routing the wire harness 1 in the lean hose (the routing target member 2). For example, the welding becomes a substantially elliptical (annular) bulge. The burr 9 (corresponding to the convex local area described in the claims) is generated during welding. The welding burr 9 is a local part when viewed in the entire length of the lean hose (the wiring target member 2). If the wire harness 1 comes into contact with the welding burr 9, the coating of the electric wire 4 is damaged. Have the potential to end up. In addition to the above-described generally elliptical bulge, the welding burr 9 may bulge into a substantially circular (annular) shape in the case of spot welding, for example, and is caused by the bulge of various shapes.

  The exterior substitute member 3 is provided in the welded portion 8 so that contact between the weld burr 9 and the wire harness 1 can be avoided. Specifically, the exterior substitute member 3 is provided so as to cover the welding burr 9. The exterior substitute member 3 has a function corresponding to an exterior member (protector, protection member) provided in a conventional wire harness. By providing the exterior substitute member 3, the wire harness 1 has a welding burr 9. In the existing position, it has a harness shape without an exterior. The exterior substitute member 3 is provided before the wire harness 1 is routed (it can be retrofitted). In addition, it cannot be overemphasized that there is no need to provide the exterior | packing substitute member 3 with respect to the welding burr | flash of the position which does not correspond on the path | route which wires 1 is routed. The exterior substitute member 3 is formed according to the shape of the weld burr 9, and the illustrated shape is an example.

  The exterior substitute member 3 has a flexible structure that can be bent and a flexible structure that can be crushed, and has a structure including a plurality of layers. In this embodiment, the protective layer 10, the adhesive layer 11, and the shock absorbing layer 12 are formed in a three-layer structure.

  The protective layer 10 is the outermost layer of the exterior substitute member 3, and is formed so as to contact the wire harness 1 and protect the wire harness 1. The protective layer 10 is formed of, for example, a vinyl sheet (PVC or the like), and a plurality of grooves 13 having, for example, a mesh shape are formed on this surface in order to improve bendability (flexibility) (grooves 13). Is optional). The protective layer 10 is formed to a thickness that can avoid the penetration of the weld burr 9.

  The adhesive layer 11 is a layer of an adhesive (butyl rubber, double-sided tape, etc.), and is used to fix the exterior substitute member 3 to the lean hose (corresponding member 2), and the protective layer 10 and the impact absorbing layer 12. Is provided on the welding burr 9. The adhesive layer 11 has an adhesive force that prevents the exterior substitute member 3 from falling off.

  The shock absorbing layer 12 is a layer located between the protective layer 10 and the adhesive layer 11 so as to be able to absorb the shock received from the wire harness 1 and to absorb the impact sound. Moreover, it is formed so that the convexity of the welding burr 9 can be absorbed and the pressing of the wire harness 1 can be supported. The shock absorbing layer 12 is made of, for example, a sponge (rubber sponge, polyethylene, etc.).

  In the above configuration and structure, in this embodiment, when the welding burr 9 exists on the wiring path of the wire harness 1, the protector is not assembled to the wire harness 1, but the exterior burr 9 is covered. It is the wiring structure and the wiring method which provide the alternative member 3 and protect the wire harness 1. FIG.

  Therefore, since the protector is not required for protecting the wire harness 1, it is possible to protect the wire harness 1 at a much lower cost than in the past. Moreover, there exists an effect that the wire harness 1 can be protected in space-saving.

  In consideration of a case where a dent is formed instead of the welding burr 9 or a case where a groove is present, the dent or the like may damage the coating of the electric wire 4. However, it goes without saying that the wire harness 1 can be protected by providing the exterior substitute member 3 (the dents and the like correspond to the concave local areas described in the claims).

  The second embodiment will be described below with reference to the drawings. FIG. 2 is a view according to the present invention, and is a cross-sectional view showing a wire harness wiring state. Moreover, FIG. 3 is explanatory drawing at the time of providing the exterior alternative part of FIG. 2 locally. The same components as those in the first embodiment are denoted by the same reference numerals and detailed description thereof is omitted.

  In FIG. 2, the wire harness 1 is routed on the routing target member 2. The wire harness 1 is routed along the wire harness routing route in the routing target member 2. Reference numeral 21 indicates a locking member for routing. The locking member 21 is provided to lock the wire harness 1 at a predetermined position. A protruding portion 22 (corresponding to a protruding local portion described in claims) is formed between the portions of the routing target member 2 where the locking member 21 is locked. This convex part 22 is a reinforcement rib etc., for example, Comprising: When it sees in the full length of the wiring object 2, it becomes a local part. If the wire harness 1 comes into contact with such a convex portion 22, the convex portion 22 has a possibility of scratching the coating of the electric wire 4. In order to protect the wire harness 1, the convex portion 22 is provided with an exterior replacement portion (corresponding to the exterior replacement portion / member described in the claims).

  As the exterior substitute part 23, a hot melt agent that is solidified from a liquid state is used (this is an example. For example, an epoxy adhesive may be used). The exterior replacement part 23 is provided in such an amount as to cover the convex part 22. The exterior replacement part 23 is provided so that contact with the convex part 22 and the wire harness 1 can be avoided. Regarding the provision of the exterior substitute part 23 on the convex part 22, it is assumed that it is easy to provide the exterior substitute part 23 by using a hot melt agent application tool 24 as shown in FIG.

  In the above configuration and structure, in this embodiment, when the convex portion 22 exists on the wiring path of the wire harness 1, the protector is not assembled to the wire harness 1, but the outer portion is covered with the convex portion 22. It is the wiring structure and the wiring method which provide the alternative member 23 and protects the wire harness 1. FIG.

  Therefore, since the protector is not required for protecting the wire harness 1, it is possible to protect the wire harness 1 at a much lower cost than in the past. Moreover, there exists an effect that the wire harness 1 can be protected in space-saving.

  It should be noted that it is also effective to provide the exterior substitute portion 23 for the weld burr 9 of the first embodiment.

  The third embodiment will be described below with reference to the drawings. 4A and 4B are views according to the present invention, in which FIG. 4A is a cross-sectional view showing a wire harness wiring state, and FIG. 4B is a perspective view of the exterior substitute member of FIG. The same components as those in the first embodiment are denoted by the same reference numerals and detailed description thereof is omitted.

  In FIG. 4, the wire harness 1 is routed along the wire harness routing path in the routing target member 31. Moreover, the wire harness 1 is routed so as to face the edge portion edge-shaped local portion 32 of the routing target member 31. The edge edge-shaped local portion 32 is an end portion that is edged in a curve (it may be a linear end portion), and is a local portion when viewed in the entire length of the routing target member 31. It has become. If the wire harness 1 comes into contact with the edge of the edge-like local portion 32, there is a possibility that the coating of the electric wire 4 (see FIG. 1) may be damaged. Therefore, in order to protect the wire harness 1, an edge replacement local portion 32 is provided with an exterior replacement member (corresponding to the exterior replacement portion / member described in the claims).

  The exterior substitute member 33 is a fitting type member whose end face shape is U-shaped, and has flexibility. A plurality of slits 34 are formed in the exterior substitute member 33 at a predetermined pitch. Reference numeral 34a indicates a slit formed by cutting from the top to the bottom in the drawing. On the other hand, reference numeral 34b indicates a slit formed by cutting from the bottom to the top in the figure. The slits 34a and the slits 34b are arranged so as to be alternately located. The exterior substitute member 33 can be stretched in the direction of the arrow P, and can be bent by opening the slits 34a and 34b.

  In the above configuration and structure, in the present embodiment, when the edge edge-shaped local portion 32 is present on the wiring path of the wire harness 1, the edge edge-shaped local portion is not assembled to the wire harness 1. In the wiring structure and the wiring method, the exterior substitute member 33 is provided so as to be fitted into the wiring harness 32 to protect the wire harness 1.

  Therefore, since the protector is not required for protecting the wire harness 1, it is possible to protect the wire harness 1 at a much lower cost than in the past. Moreover, there exists an effect that the wire harness 1 can be protected in space-saving.

  The fourth embodiment will be described below with reference to the drawings. 5A and 5B are views according to the present invention, in which FIG. 5A is a view showing a state immediately before the provision of an exterior replacement part / member locally, and FIG. 5B is a view showing a state of being provided with the exterior replacement part locally. The same components as those in the first embodiment are denoted by the same reference numerals and detailed description thereof is omitted.

  In FIG. 5, the wiring target member 2 is provided with two convex locals 41 (the number of convex locals 41 is an example). The convex local part 41 has a possibility of scratching the coating of the electric wire 4 (see FIG. 1) in the wire harness 1. Therefore, in order to protect the wire harness 1, the convex local portion 41 is provided with an exterior replacement portion (corresponding to the exterior replacement portion / member described in the claims) 42 so as to cover it. The exterior replacement part 42 is provided by melting a plate-like (chip-like) thermoplastic plastic 43 with heat from a heat irradiation device (heating device) 44 and then cooling and solidifying it.

  In the above-described configuration and structure, the present embodiment has a convex shape instead of assembling a protector to the wire harness 1 when the convex local portion 41 exists on the wiring path of the wire harness 1 (see FIG. 1). In the wiring structure and the wiring method, the exterior substitute part 42 is provided so as to cover the local area 41 to protect the wire harness 1.

  Therefore, since the protector is not required for protecting the wire harness 1, it is possible to protect the wire harness 1 at a much lower cost than in the past. Moreover, there exists an effect that the wire harness 1 can be protected in space-saving.

  The fifth embodiment will be described below with reference to the drawings. FIGS. 6A and 6B are diagrams (Example 5) according to the present invention, in which FIG. 6A shows a state immediately before the provision of the exterior replacement part locally, and FIG. 6B shows the state of the provision of the exterior replacement part locally. It is. The same components as those in the third embodiment are denoted by the same reference numerals and detailed description thereof is omitted.

  In FIG. 6, the edge-like local portion 32 is provided in the routing target member 31. The edge edge-like local 32 has a possibility of scratching the coating of the electric wire 4 (see FIG. 1) in the wire harness 1. Therefore, in order to protect the wire harness 1, the edge edge-shaped local portion 32 is provided with an exterior replacement portion (corresponding to the exterior replacement portion / member described in the claims) 51 so as to cover it. . The exterior replacement part 51 is provided, for example, by melting a U-shaped thermoplastic 52 with heat from a heat irradiation device 44 (see FIG. 5), and then cooling and solidifying it.

  In the above-described configuration and structure, this embodiment does not assemble a protector on the wire harness 1 when the edge edge-shaped local portion 32 exists on the wiring path of the wire harness 1 (see FIG. 1). It is the wiring structure and the wiring method which provide the exterior alternative part 51 so that the edge part edge-like local 32 may be covered, and protect the wire harness 1. FIG.

  Therefore, since the protector is not required for protecting the wire harness 1, it is possible to protect the wire harness 1 at a much lower cost than in the past. Moreover, there exists an effect that the wire harness 1 can be protected in space-saving.

  In addition, the present invention can of course be modified in various ways within the scope not changing the gist of the present invention.

  As an application example of the present invention, it can be applied to an electronic device such as a copying machine. The present invention can be adopted in a field where a wire harness (wire bundle) needs to be routed.

DESCRIPTION OF SYMBOLS 1 ... Wire harness 2 ... Routing object member 3 ... Exterior substitute member (exterior substitute part and member)
4 ... Electric wire 5 ... Tape winding 6 ... Surface 7 ... Member to be welded 8 ... Welded part 9 ... Welding burr (convex local)
DESCRIPTION OF SYMBOLS 10 ... Protective layer 11 ... Adhesive layer 12 ... Shock absorption layer 13 ... Groove 21 ... Locking member 22 ... Convex part (convex local)
23 ... exterior replacement part (exterior replacement part / member)
24 ... Hot melt agent application tool 31 ... Wiring target member 32 ... Edge edge local 33 ... Exterior substitute member (exterior substitute part / member)
34 ... slit 41 ... convex local 42 ... exterior replacement part (exterior replacement part / member)
43 ... thermoplastics 44 ... heat irradiation device 51 ... exterior replacement part (exterior replacement part / member)
52. Thermoplastic

Claims (9)

A local portion present at a position in accordance with the wiring harness routing route in the wiring target member is defined as a convex local shape, a concave local shape, or an edge-edge local shape generated in the wiring target member. A wire harness routing structure characterized in that a portion of the wire harness facing the exterior substitute portion / member is formed as an exterior-less portion and a non-holding portion while providing the substitute portion / member. In the wire harness wiring structure according to claim 1,
A wire harness routing structure characterized by using a bendable flexibility and / or a collapseable flexibility as the exterior substitute part / member. In the wire harness wiring structure according to claim 2,
The wire harness routing structure, wherein the exterior substitute part / member is formed in a structure composed of a plurality of layers. In the wire harness wiring structure according to claim 3,
The outermost layer of the exterior substitute part / member consisting of the plurality of layers is a protective layer that contacts and protects the wire harness, and the layer opposite to the protective layer is an adhesive layer that reaches the local area or the vicinity thereof. An impact absorbing layer that absorbs an impact received from the wire harness is provided between the protective layer and the adhesive layer. In the wire harness wiring structure according to claim 1,
Wire harness routing structure characterized by using a material that solidifies from a liquid state, a material that solidifies after liquefaction, or a material that solidifies after softening as the exterior replacement part / member . In the wire harness wiring structure according to claim 1,
When the local is the convex local or the concave local, the exterior replacement part / member is provided so as to cover or surround the local. In the wire harness wiring structure according to claim 1,
When the said local part is said edge part edge-shaped local, the said exterior alternative part and member are provided in the state which covers or fits the said local part. The wire harness wiring structure characterized by the above-mentioned. A local portion present at a position in accordance with the wiring harness routing route in the wiring target member is defined as a convex local shape, a concave local shape, or an edge-edge local shape generated in the wiring target member. A process of providing alternative parts and members;
Forming a part of the wire harness facing the exterior substitute part / member as an exterior-less part and a non-holding part;
Routing the wire harness so that the part is opposed to the exterior substitute part / member;
A wiring harness routing method comprising: The local existing at the position matching the wire harness wiring path in the wiring target member is defined as a convex local, concave local, or edge-edge local generated in the wiring target member. It is provided in a state of covering, enclosing, or fitting.

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