JP2016046825A - Wire harness - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wire harness capable of preventing connection work of a connector from becoming difficult at a wiring destination because of fluctuation in a connector position during wiring, by easily fitting a protection member to a branch part, further, making the protection member capable of firmly protecting the branch part in a simple configuration and moreover, highly accurately maintaining a distance between the connector in a distal end of a branch and a trunk.SOLUTION: A wire harness includes: a trunk 5; a single-coated self-tack sheet 6 which is pasted together by overlapping a pair of edges 61 and 61 which cover the trunk 5 while holding the trunk therebetween, along the trunk 5; a branch 7 which is branched in the middle of the trunk 5 and pulled out between the pair of edges 61 and 61 of the single-coated self-tack sheet 6 holding a branch part 4a therebetween; a connector 8 that is provided in the distal end of the branch 7; and a fixing member 9 which is provided in a portion of one of the single-coated self-tack sheets 6 to be overlapped, and fixes the branch 7 between the branch part 4a from the trunk 5 and the edge prior to overlapping the portions.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a wire harness in which a connector is provided at the tip of a branch line branched from a trunk line.

  3-5 shows the prior art example of the wire harness from which a branch line branches from the middle of a trunk line.

  The wire harness 100 shown in FIG. 3 has the same protective structure as the wire harness disclosed in Patent Document 1 below.

  The wire harness 100 includes a trunk line 110, a branch line 120 branched from the trunk line 110, a connector 130 connected to the tip of the branch line 120, and a corrugated tube 140 that is a protective member that covers the trunk line 110.

  The branch line 120 branched from the trunk line 110 is led out from a branch line insertion hole 141 formed in the corrugated tube 140.

  The wire harness 200 shown in FIGS. 4 and 5 is a wire harness disclosed in Patent Document 2 below.

  The wire harness 200 includes a main line 210, a branch line 220 branched from the main line 210, and a single adhesive tape 240 covering the branch portion 230.

  The adhesive tape 240 is a tape having an adhesive surface on one side, and as shown in FIG. 5, a branch line 220 of the trunk line 210 placed on the base tape 241 on a substantially rectangular base tape 241. Is formed along the extending direction of the branch line 220 in a region opposite to the branch side of the main line 210 placed on the base material tape 241 and the pair of cuts 242 formed along one side of the branch line. And a pair of cuts 243.

  Then, the adhesive tape 240 is mounted on the strip-shaped trunk line placement unit 244 on which the trunk line 210 is placed, the branch line placement unit 245 on which the branch line 220 is placed, and the branch line placement unit 245 by the aforementioned four cuts. The branch line sandwiching part 246 folded on the placed branch line 220, the trunk line winding part 247 wound around the trunk line 210 placed on the trunk line placing part 244, and folded on the branch line 220 A branch winding part 248 that is wound around the branch line 220 from above the branch pinching part 246 is formed.

JP 2000-166054 A Japanese Utility Model Publication No.3-3116

  By the way, in the wire harness 100 of patent document 1 which accommodates and protects the trunk line 110 in the corrugated tube 140, when the outer diameter of the trunk line 110 is smaller than the inner diameter of the corrugated tube 140, as shown in FIG. As shown in FIGS. 6A to 6C, the position of the connector 130 varies depending on the position of the main line 110 in the corrugated tube 140.

  For example, as shown in FIG. 6B, when the distance from the branch line insertion hole 141 to the connector 130 when the trunk line 110 is maintained at the center of the corrugated tube 140 is a standard distance L1, FIG. As shown in FIG. 6, in the state where the main line 110 is in contact with the inner back of the corrugated tube 140, the distance to the connector 130 is shortened by Δl1, and as shown in FIG. In the state where it is in contact with the branch line insertion hole 141 of 140, the distance to the connector 130 is increased by Δl2.

  Due to such variation in the position of the connector 130, there is a possibility that it becomes difficult to connect the connector 130 to a device or the like as a wiring destination when the wiring is performed.

  Further, in the case of the structure in which the branch portion is protected by the corrugated tube, there is a problem in that it takes time to mount the corrugated tube and the like, thereby increasing the cost.

  On the other hand, in the case of the wire harness 200 of Patent Document 2, the configuration is simpler than that of Patent Document 1, and the distance from the main line 210 to the connector at the tip of the branch line 220 can also suppress variations.

  However, in the wire harness 200 of Patent Document 2, the adhesive tape 240 that protects the branch portion 230 is a normal adhesive tape that has high-strength adhesiveness on one side, and is not suitable when being attached to the branch portion 230. There was a risk that it would be difficult to attach to the branching part 230 due to preparations, or could not be properly attached to the branching part 230, or adhered to the fingers or the objects around the branching part, making it difficult to attach to the branching part 230.

  Accordingly, an object of the present invention is to solve the above-mentioned problems, and it is easy to attach the protective member to the branching portion, and the protective member can firmly protect the branching portion with a simple configuration. The distance between the connector at the tip of the branch line and the main line can be maintained with high accuracy, and it is possible to prevent the connector from being difficult to connect at the wiring destination due to variations in the connector position when wiring. It is to provide a wire harness.

The above-described object of the present invention is achieved by the following configuration.
(1) With the main line,
A self-adhesive sheet that covers and covers the trunk line and overlaps the pair of edges along the trunk line;
A branch line that is branched from the middle of the trunk line and is sandwiched and covered by the self-adhesive sheet and drawn out between the pair of edges,
A connector provided at the tip of the branch line;
A fixing member provided on one part of the self-adhesive sheet to be superimposed and fixing the branch line between the branch from the trunk line and the edge before superposition;
A wire harness comprising:

  (2) The wire harness according to (1), wherein the fixing member is a double-sided adhesive tape.

  According to the configuration of the above (1), the protective member attached to the branch portion is a self-adhesive sheet that is overlapped with the branch portion interposed therebetween, and one edge side of a pair of edges of the self-adhesive sheet that are overlapped with each other. It is the simple structure comprised from the fixing member with which one part is equipped.

  The self-adhesive sheet adheres to each other with a predetermined adhesive force when the self-adhesive surfaces overlap, and the self-adhesive sheet contacts the adhesive surface of the self-adhesive sheet. The adhesiveness is not exhibited in cases other than the adhesive surface. Therefore, when attaching the self-adhesive sheet to the branch part, the self-adhesive sheet does not inadvertently adhere to other parts, making it difficult to work, and the self-adhesive sheet can be easily attached to the branch part. it can.

  And if a self-adhesive sheet is attached to a branch part, the fixing member with which the self-adhesive sheet is equipped will fix the branch line which contacts this fixing member. That is, the self-adhesive sheet is temporarily fixed to the branch line accurately by the adhesive force of the fixing member.

  Then, after temporarily fixing the fixing member to the branch line, when the self-adhesive sheet is folded so that the self-adhesive sheet sandwiches the branch portion, the self-adhesive sheets that overlap each other around the trunk line or the branch line are bonded to each other and branched. The periphery of the part is sealed with a self-adhesive sheet, and the self-adhesive sheet is firmly fixed to the branch part, and the entire branch part is covered and protected by the self-adhesive sheet.

  Therefore, according to the structure of said (1), attachment of the protection member to a branch part is easy, and also a protection member can protect a branch part firmly with a simple structure. Furthermore, since the branch line is firmly fixed to the trunk line at the branching portion, the distance between the connector at the tip of the branch line and the trunk line is maintained with high accuracy, thereby preventing variations in the connector position. Therefore, when wiring the said wire harness, it can prevent that the connection operation | work of the connector in a wiring destination becomes difficult by the variation in a connector position.

  According to the configuration of (2) above, since the fixing member is a double-sided pressure-sensitive adhesive tape, the fixing member is firmly fixed and equipped on one part of the self-adhesive sheet only by pressing on one part of the self-adhesive sheet. Can do. That is, it becomes easy to equip the fixing member.

  In addition, when mounting the self-adhesive sheet on the branch part, if the branch part is placed on the self-adhesive sheet so that the fixed position of the branch line adheres to the double-sided adhesive tape that is the fixing member, Thus, the self-adhesive sheet can be temporarily fixed to the branch portion accurately. Then, if the self-adhesive sheet is folded over the branch part so that the pair of edges of the self-adhesive sheet overlap from the temporarily fixed state, the self-adhesive sheets overlapped around the branch part adhere to each other and branch The periphery of the part is sealed, the self-adhesive sheet is fixed to the branch part, and the branch part is covered and protected by the self-adhesive sheet.

  Therefore, it becomes easy to equip the fixing member, and at the same time, the self-adhesive sheet can be easily assembled to the branching portion, and the productivity of the wire harness can be improved.

  According to the wire harness of the present invention, it is easy to attach the protection member to the branch portion, and the protection member can firmly protect the branch portion with a simple configuration. It is possible to prevent the connection work of the connector at the wiring destination from becoming difficult due to the variation in the connector position when wiring, while maintaining the distance between the two and the wiring with high accuracy.

  The present invention has been briefly described above. Furthermore, the details of the present invention will be further clarified by reading through a mode for carrying out the invention described below (hereinafter referred to as “embodiment”) with reference to the accompanying drawings. .

FIG. 1 is a perspective view of an embodiment of a wire harness according to the present invention. FIG. 2 is a cross-sectional view of the wire harness shown in FIG. FIG. 3 is a perspective view showing a schematic configuration of a conventional wire harness. FIG. 4 is a perspective view showing the configuration of another conventional wire harness. FIG. 5 is a development view of the adhesive tape covering the branch portion of the wire harness shown in FIG. FIG. 6 is an explanatory diagram of problems of the conventional wire harness shown in FIG.

  Hereinafter, a preferred embodiment of a wire harness according to the present invention will be described in detail with reference to the drawings.

  1 and 2 show an embodiment of a wire harness according to the present invention, FIG. 1 is a perspective view of the wire harness of an embodiment of the present invention, and FIG. 2 is an A of the wire harness shown in FIG. It is -A sectional drawing.

  The wire harness 4 of this embodiment includes a trunk line 5, a single-sided self-adhesive sheet 6, a branch line 7, a connector 8, and a fixing member 9.

  The trunk line 5 is a bundle of electric wires composed of a plurality of covered electric wires 51. In the trunk line 5, a branching portion 4 a where the branch line 7 branches is set in the middle.

  The single-sided self-adhesive sheet 6 has a rectangular sheet shape and covers the trunk line 5 and the branch line 7 in the branch portion 4a. In addition, the single-sided self-adhesive sheet 6 is laminated by overlapping a pair of edge portions 61 and 61 along the trunk line 5.

  In this single-sided self-adhesive sheet 6, the surface (one side) to be superimposed is a self-adhesive surface. This single-sided self-adhesive sheet 6 exhibits adhesiveness only when the self-adhesive surfaces are put together, and the bonded surfaces are bonded together. The self-adhesive surface of the single-sided self-adhesive sheet 6 does not exhibit adhesiveness other than the self-adhesive surface, and does not adhere to the operator's fingers, the trunk line 5 or the branch line 7 that is in contact.

The single-sided self-adhesive sheet 6 used in the present embodiment can bond its own adhesive surfaces (back surfaces) to each other by self-adhesion. That is, it is possible to simply apply the adhesive surfaces (rear surfaces) together without using glue or a binding tape. The single-sided self-adhesive sheet 6 has a surface material laminated on the surface of a sheet base material made of PP (polypropylene) foam, and a special pressure-sensitive adhesive layer laminated on the back surface. Kraft paper, liner board, PET (polyethylene terephthalate) film, PP film, non-woven fabric, etc. can be used as the surface material. Tensile strength is 49 N / cm width in the vertical direction, 23 N / cm width in the horizontal direction (according to JIS K-6767), and tear strength is 7.8 N in the vertical direction and 6.8 N in the horizontal direction (JIS K- 6767), water vapor permeability is 0.0052 g / cm ² · 24 hrs (FS-101B), and initial adhesive strength is 2.5 N / cm width (T-type peel test). As this single-sided self-adhesive sheet, for example, Cro-nel (registered trademark) manufactured by Crowell, Inc. of the United States can be used.

  In the present embodiment, one single-sided self-adhesive sheet 6 is used. The single-sided self-adhesive sheet 6 has an outer shape formed in advance into a predetermined shape. The self-adhesive sheet used in the present invention is the same even if the adhesive surfaces are bonded together by sandwiching the electric wires 5 and 7 between two sheets of the first self-adhesive sheet material and the second self-adhesive sheet material. Action and effect are obtained.

The branch line 7 is a bundle of electric wires composed of a plurality of covered electric wires 51 branched from the middle of the main line 5. The branch line 7 is sandwiched and covered with the single-sided self-adhesive sheet 6 together with the trunk line 5 at the branch portion 4a. Moreover, the branch line 7 is pulled out from between the pair of edge portions 61, 61 that are bonded together, and the connector 8 is connected to the tip thereof.
The connector 8 is connected to the tip of the branch line 7 and connects the branch line 7 to a device or the like.

  As shown in FIG. 2, the fixing member 9 is provided on only one side of the pair of edge portions 61, 61 on the inner surface of the single-sided self-adhesive sheet 6. The position where the fixing member 9 is mounted is a part in the range R between the branching portion 4 a and the end edge 61 a of the edge portion 61. In the illustrated example, the fixing member 9 is provided so as to be aligned with the end edge 61a of the edge portion 61. However, the position where the fixing member 9 is provided may be inside the end edge 61a.

  In the case of this embodiment, the fixing member 9 is a double-sided pressure-sensitive adhesive tape, and is mounted at a position near one edge 61 of the single-sided self-adhesive sheet 6 at least before the single-sided self-adhesive sheet 6 is overlapped at the branch portion 4a. The In addition, the fixing member 9 provided on the single-sided self-adhesive sheet 6 is pressed against the branch line 7 before the pair of edges 61 and 61 of the single-sided self-adhesive sheet 6 are overlapped at the branching portion 4a. The branch line 7 is fixed by force.

  In the wire harness 4 according to the embodiment described above, the protective member attached to the branch portion includes the single-sided self-adhesive sheet 6 that is overlapped across the branch portion, and a pair of edges of the single-sided self-adhesive sheet 6 that are overlapped with each other. It is the simple structure comprised from the fixing member 9 with which a part of one edge side of the parts 61 and 61 is equipped.

  And the single-sided self-adhesive sheet 6 is such that when the self-adhesive surfaces overlap each other, the overlapped surfaces are bonded with a predetermined adhesive force, and the one-side self-adhesive sheet 6 is in contact with the adhesive surface of the single-sided self-adhesive sheet 6. Adhesiveness is not exhibited in cases other than self-adhesive surfaces such as fingers and fingers. Therefore, when the single-sided self-adhesive sheet 6 is attached to the branch portion 4a, the single-sided self-adhesive sheet 6 is not inadvertently adhered to other parts, making it difficult to perform the operation. Can be added to the branch part 4a.

  And if the single-sided self-adhesive sheet 6 is attached to the branch part 4a, the fixing member 9 equipped in the single-sided self-adhesive sheet 6 will fix the branch line 7 which contacts the fixing member 9. That is, the single-sided self-adhesive sheet 6 is temporarily fixed to the branch line 7 accurately by the adhesive force of the fixing member 9.

  Then, after temporarily fixing the fixing member 9 to the branch line 7, when the single-sided self-adhesive sheet 6 is folded so that the single-sided self-adhesive sheet 6 sandwiches the branch portion 4 a, the single-sided surfaces that overlap each other around the trunk line 5 and the branch line 7 The self-adhesive sheets 6 are bonded to each other, the periphery of the branch part 4a is sealed with the single-sided self-adhesive sheet 6, the single-sided self-adhesive sheet 6 is firmly fixed to the branch part 4a, and the entire branch part 4a is single-sided self It will be in the state protected and covered with the adhesive sheet 6. FIG.

  Therefore, in the wire harness 4 according to the embodiment, it is easy to attach the protective member to the branch portion 4a, and the protective member can firmly protect the branch portion 4a with a simple configuration. Is firmly fixed to the main line 5 at the branch part 4a, the distance between the connector 8 at the tip of the branch line 7 and the main line 5 is maintained with high accuracy, and variations in the position of the connector 8 are prevented. . Therefore, when wiring the wire harness 4, it is possible to prevent the connection work of the connector 8 at the wiring destination from being difficult due to variations in the position of the connector 8.

  Moreover, in the wire harness 4 of one Embodiment, since the fixing member 9 is a double-sided adhesive tape, it only overlaps with one part of the single-sided self-adhesive sheet 6 and presses it on one part of the single-sided self-adhesive sheet 6. It can be firmly fixed. That is, the fixing member 9 can be easily installed.

  Further, when the single-sided self-adhesive sheet 6 is attached to the branch part 4a, the branch part 4a is placed on the single-sided self-adhesive sheet 6 so that the fixed position of the branch line 7 is adhered to the double-sided adhesive tape as the fixing member 9. If placed, the single-sided self-adhesive sheet 6 can be temporarily fixed to the branching portion 4a accurately by the adhesion of the fixing member 9. And if the single-sided self-adhesive sheet 6 is folded over the branching part 4a so that the pair of edges of the single-sided self-adhesive sheet 6 overlap from the temporarily fixed state, the single-sided self-adhesive sheet overlapped around the branching part 4a 6 are bonded to each other to seal the periphery of the branch portion 4a, the single-sided self-adhesive sheet 6 is fixed to the branch portion 4a, and the branch portion 4a is covered and protected by the single-sided self-adhesive sheet 6.

  Accordingly, the fixing member 9 can be easily installed, and at the same time, the single-sided self-adhesive sheet 6 can be easily assembled to the branch portion 4a, and the productivity of the wire harness 4 can be improved.

  In addition, this invention is not limited to embodiment mentioned above, A deformation | transformation, improvement, etc. are possible suitably. In addition, the material, shape, dimensions, number, arrangement location, and the like of each component in the above-described embodiment are arbitrary and are not limited as long as the present invention can be achieved.

  For example, the fixing member may be a member that exhibits adhesion to the branch line, and is not limited to a double-sided adhesive tape. For example, an adhesive layer having adhesiveness to the branch line may be applied and formed on a partial region of the single-sided self-adhesive sheet 6.

  The self-adhesive sheet may be a double-sided self-adhesive sheet having self-adhesive properties on both sides.

  Here, the features of the embodiment of the wire harness according to the present invention described above are briefly summarized and listed in the following [1] to [2], respectively.

[1] Main line (5),
A self-adhesive sheet (6) that covers and covers the trunk line (5) and is laminated with a pair of edges (61, 61) along the trunk line (5);
A branch line (7) branched from the middle of the trunk line (5) and covered between the self-adhesive sheet (6) and drawn from between the pair of edges (61, 61);
A connector (8) provided at the tip of the branch line (7);
Provided in one part of the self-adhesive sheet (6) to be overlaid and fix the branch line (7) between the branch (4a) from the trunk line (5) and the edge before superposition A fixing member (9);
A wire harness (4) comprising:

  [2] The wire harness (4) according to the above [1], wherein the fixing member (9) is a double-sided adhesive tape.

4 Wire harness 4a Branch part 5 Trunk line 6 Single-sided self-adhesive sheet 7 Branch line 8 Connector 9 Fixing member 61 Edge

Claims (2)

The main line,
A self-adhesive sheet that covers and covers the trunk line and overlaps the pair of edges along the trunk line;
A branch line that is branched from the middle of the trunk line and is sandwiched and covered by the self-adhesive sheet and drawn out between the pair of edges,
A connector provided at the tip of the branch line;
A fixing member provided on one part of the self-adhesive sheet to be superimposed and fixing the branch line between the branch from the trunk line and the edge before superposition;
A wire harness comprising:   The wire harness according to claim 1, wherein the fixing member is a double-sided adhesive tape.

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