JP2003123563A - Water cut-off method for wire harness and wire harness - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a water cut-off method for a wire harness and the wire harness which can be easily arranged while carrying out cut-off of water. SOLUTION: In the water cut-off method for the wire harness, electric wires 16 are flatly spread by applying tension to a water cut-off portion R to be subjected to the cut-off of water of the electric wires 16 of the wire harness arranged by a rod like holder 31. The cut-off of water is carried out by applying a water cut-off agent to the flatly spread electric wires 16 from one side or both sides, cylindrically rounding them and winding a tape. Namely, the tension to the water cut-off portion R is generated by arranging the water cut-off portion R to be subjected to the cut-off of water on the electric wire holder 31 provided perpendicularly to an arranging direction on both sides or one side of the water cut-off portion R and turning the electric wire holder 31 obliquely or in parallel to the arranging direction.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wire harness waterproofing method and a wire harness for waterproofing between electric wires of a wire harness which is inserted into a grommet which is mounted in a panel through hole of an automobile.

[0002]

2. Description of the Related Art Conventionally, for example, in a wire harness that is routed through a panel or the like for partitioning the interior and exterior of a vehicle interior of a vehicle, a rubber grommet is attached to a through hole provided in the panel. By arranging the wire harness through the grommet, the gap between the grommet and the panel through hole is reliably sealed to prevent water from entering the vehicle interior through the through hole of the panel.

However, if there are gaps between the grommet and the electric wires of the wire harness or between the electric wires, there is a possibility that water may enter the vehicle interior through these gaps, so these gaps also need to be sealed.

Therefore, in order to seal the gap, a wire is sealed between the electric wires by using a device as disclosed in Japanese Unexamined Patent Publication No. 10-224960. That is, as shown in FIG. 9, on the wiring board 11 for wire harness assembly, a plurality of electric wires for supporting an electric wire group composed of a plurality of electric wires in a branched shape according to a predetermined wiring form is provided. The group receiving jigs 12a, 12b, 12c, 12d, 12e are attached, and a waterproof treatment jig 13 for applying waterproofing agent to the wire group W at a predetermined position on the way to perform waterproof treatment.
Are arranged.

In the waterproofing jig 13, a board 14 is mounted on the wiring board 11, and a pair of electric wire holders 15 and 15 are erected on the board 14 at predetermined intervals.
The electric wire holder 15 has an electric wire 1 at a grommet insertion site.
Slits 17 are provided for holding the 6s aligned in a column.

Using such a device, waterproofing is performed in the following procedure. That is, first, as shown in FIG. 10 (A), the electric wires 16 at the grommet insertion portion are aligned in a vertical line on the plane of one line by the slits 17 of the electric wire holder 15. Next, as shown in FIG. 10 (B), an unsolidified waterproofing agent 19 is applied by a waterproofing agent applying nozzle 18 to the surface of the electric wire 16 aligned between the pair of electric wire holders 15, 15. .

Next, as shown in FIG. 10 (C), a strip-shaped film 21 for bundling is attached to one surface of the electric wire 16 coated with the waterproofing agent 19 to arrange the electric wires 16 in one row. After being connected to the electric wire 16, the electric wire 16 is connected to the waterproofing jig 13 (see FIG. 9).
Reference). Next, as shown in FIG. 10D, the band-shaped film 21 is wound and fastened to bind the electric wires 16 into a circular cross section.

Next, as shown in FIG. 10 (E), a tape 22 is wound around the binding position of the band-shaped film 21 so that the cross-sectional size of the electric wire 16 is tightly fitted into the harness insertion hole of the grommet. The water blocking agent 19 is solidified while being shaped into. Finally, as shown in FIG. 10 (F), the grommet 23 is mounted on the winding position of the tape 22.

[0009]

However, in the above-described conventional water blocking treatment method, since the water blocking agent 19 is applied in a state where the wires 16 are held in one row of aligned state, the wire 1
When the number of 6 is increased, the narrow electric wire holder 15 for aligning the electric wires 16 in one row becomes long in the up-down direction, and there is a problem that it is difficult to perform wiring.

The object of the present invention was made in view of the above-mentioned conventional problems, and a water-stop treatment method for a wire harness and a wire harness which can be easily wired when performing the water-stop treatment. To provide.

[0011]

In order to achieve the above-mentioned object, a method of waterproofing a wire harness according to claim 1 is a method of waterproofing a wire of a wire harness to be inserted into a grommet for mounting in a panel through hole. A method of waterproofing a wire harness for performing a water treatment, wherein the wire harness is routed on a jig plate for laying the wire harness, and tension is applied to a portion for performing the waterproofing treatment by a rod-shaped jig. Spread the electric wire in a flat plate shape, apply a waterproofing agent from one side or both sides of the electric wire spread in a flat plate shape, after rolling the portion coated with the waterproofing agent into a substantially cylindrical shape and winding a tape, It is characterized by wearing a grommet.

According to the method of waterproof treatment of wire harness having the above-mentioned configuration, the wire harness is routed on the jig plate, and the portion of the wire harness routed by the rod-shaped jig is subjected to the waterproof treatment. Since the tension is applied to spread the electric wire in a flat plate shape,
Even if a wide wire holder is used, it can be arranged in a narrow width. Then, the water blocking agent is applied from one side or both sides to the flat-wire-shaped electric wire and then rolled into a substantially cylindrical shape to wind the tape to carry out the water blocking treatment, so that the water blocking treatment can be completely performed.

According to a second aspect of the present invention, there is provided a method of waterproofing a wire harness according to a first aspect of the present invention, which is directed to the wiring direction with a portion of the electric wire for performing the waterproofing being interposed therebetween. The front and rear both sides or one side of the electric wire holders are arranged in parallel or obliquely with respect to the wiring direction, and by applying the electric wires to the electric wire holders, tension is applied to the portion for performing the water stop treatment. And

According to the wire harness waterproofing method of the above construction, the wire holders provided on the front and rear sides or one side in the wiring direction sandwiching the portion of the jig plate to be waterproofed are arranged in the wiring direction. Place it in parallel or diagonally,
Tension is applied by laying an electric wire on this electric wire holder. Thus, the electric wires are pressed against the electric wire holder and can be aligned in a narrow width, and a wide electric wire holder can be used, so that the wiring can be easily performed.

According to a third aspect of the present invention, there is provided a wire harness waterproof treatment method according to the first aspect of the present invention, wherein a portion of the electric wire that is subjected to the waterproof treatment has a long length. A wire holder wider than the wire is arranged at a right angle to the wiring direction, and after the wiring of the electric wire, the waterproofing treatment is performed by turning the wire holder parallel or oblique to the wiring direction. It is characterized by applying tension to the part.

According to the method for waterproofing the wire harness having the above-mentioned structure, after the wire is laid on the wire holder provided at a right angle to the wire laying direction at the portion of the jig plate for carrying out the water proofing, the wire holding Rotate the tool parallel or diagonal to the wiring direction.
At this time, since the electric wire holder includes a portion for performing the waterproofing treatment inside and pushes the electric wires on the both front and rear sides in the wiring direction and in the opposite directions to generate tension, the electric wire holder can be arranged in a narrow width. it can. This wire holder has a width wider than the length of the portion where the waterproof treatment is performed and is arranged in the direction orthogonal to the wiring direction, so that the wire can be easily wired.

According to a fourth aspect of the present invention, there is provided a method of waterproofing a wire harness according to the first aspect, wherein the portion of the wire for performing the waterproofing treatment is arranged in front of and behind in a wiring direction. The water-stopping treatment is performed by arranging the electric wire holders on both sides or one side at a right angle to the wiring direction and rotating the electric wire holders parallel or obliquely with respect to the wiring direction after laying the electric wires. It is characterized by applying tension from both sides or one side of the part.

According to the method of waterproof treatment of the wire harness having the above-mentioned configuration, the wire holder is provided on both front and rear sides or one side in the wiring direction across the portion of the jig plate to be subjected to the waterproof treatment with respect to the wiring direction. Since the wire holders are arranged at a right angle and the wire harnesses are routed, the electric wire holder is swung parallel or oblique to the wiring direction to generate tension, so that the wires can be arranged in a narrow width.
At this time, since a wire holder having a wide width can be used, wiring can be easily performed.

According to a fifth aspect of the present invention, there is provided a wire harness waterproof treatment method according to the third or fourth aspect of the present invention, wherein the electric wire holder is swiveled in a wiring direction. It is characterized in that a fixing means for fixing at a predetermined angle is provided.

According to the method of waterproof treatment of a wire harness having the above-mentioned configuration, the wire harness is routed to the electric wire holder, and after the electric wire holder is turned, the electric wire holder is fixed by the fixing means under tension. A water blocking agent can be easily applied.

According to a sixth aspect of the present invention, there is provided a wire harness waterproof treatment method, wherein the fixing means is integrally formed on a lower portion of the wire holder. The plate holding member is provided so as to movably contact the upper surface of the jig plate, and the wire holding member is inserted into a fixing hole provided in the jig plate while penetrating a through hole provided in the plate member. And a fixing pin for fixing the tool at a predetermined angle.

According to the method of waterproofing the wire harness having the above-mentioned structure, the plate member provided on the lower portion of the wire holder is brought into contact with the upper surface of the jig plate to swivel the wire holder, and the wire member is provided on the plate member. The fixing pin is inserted into the fixing hole provided in the jig plate by penetrating the through hole. Thereby, the wire holder can be securely fixed at the predetermined angle. If a plurality of through holes or fixing holes are provided, the wire holder can be swung at various angles and fixed.

According to the wire harness of claim 7,
The wire harness according to any one of claims 1 to 6 is water-stopped.

According to the wire harness having the above-described structure, the wire is arranged on the jig plate to the electric wire holder, and tension is applied by the rod-shaped jig or the electric wire holder. Since it has been treated, it can be arranged in a narrow width even with a wide electric wire holder, and the waterproof treatment can be completely performed.

[0025]

BEST MODE FOR CARRYING OUT THE INVENTION A first embodiment of a wire harness waterproofing method and a wire harness according to the present invention will be described below with reference to FIG.
It will be described in detail with reference to FIG. The present embodiment corresponds to claims 1, 3, 5, 6, and 7.
FIG. 1 is a perspective view showing a first embodiment of a waterproof treatment method for a wire harness according to the present invention, FIG. 2 is a schematic diagram of a waterproof treatment method for a wire harness in FIG. 1, and FIGS. 3 (A) and 3 (B). [Fig. 3] is a perspective view and a plan view showing a fixing means. It should be noted that the same parts as those of the conventional technology are designated by the same reference numerals, and the overlapping description of the configuration and operation will be omitted.

As shown in FIG. 1, in the wire harness water-stop treatment method and wire harness according to the present embodiment, the wire group W has a circular cross-section at a location close to the water-stop treatment portion R for performing the water-stop treatment. An electric wire holder 31 having a shape capable of holding is installed at a right angle to the wiring direction. As shown in Figure 3 (A),
The electric wire holder 31 includes a shaft 3 that supports a U-shaped holding portion 32.
A disk-shaped plate member 34 is provided in the lower portion of the plate 3, and the plate member 34 is rotatable about the shaft 33 while being in contact with the upper surface of the jig plate 14. The plate member 34 is provided with through holes 35a and 35b at eccentric positions.
A fixing hole 36 is provided at a predetermined angle position in the position 4.

When the fixing pin 37 is fitted into the through hole 35a and the fixing hole 36, the electric wire holder 31 is set in the direction orthogonal to the wiring direction, and the through hole 35b and the fixing hole 36.
When the fixing pin 37 is fitted into the electric wire holder 31, the electric wire holder 31 is fixed at a position rotated by a predetermined angle with respect to the wiring direction. Further, if a plurality of through holes 35b or fixing holes 36 are provided, the wire holder 31 can be swung and fixed at various angles.

Next, the procedure of the water-stop treatment method for the wire harness according to the present invention will be described. As shown in FIGS. 1 to 3, the fixing pin 37 is fitted by aligning the through hole 35a of the plate member 34 of the electric wire holder 31 and the fixing hole 36 of the jig plate 14 in the vicinity of the water blocking portion R to hold the electric wire. The tool 31 is provided in a direction orthogonal to the wiring direction (shown by a solid line in FIG. 2), and the electric wire 16 is wired. Next, the wire 16 is rotated about the shaft 33 so that the through hole 35b of the plate member 34 is aligned with the fixing hole 36 of the jig plate 14 and the fixing pin 37 is fitted therein (shown by a black circle and a chain double-dashed line in FIG. 2). Apply tension to. As a result, the holding portion 32 of the wire holder 31 is fixed obliquely or parallel to the wiring direction, and the apparent width D1 of the wire holder 31 becomes narrower than the actual width D0 (see FIG. 2). .

Since the electric wire 16 is bent by the holding portion 32 in the direction intersecting the wiring direction, the electric wire 16 is pressed against one holding portion 32 by the tension and aligned in one row. That is, as in the case where the electric wire 16 uses the narrow electric wire holder 31, the water-stop treated portions R are tensioned and aligned in a substantially vertical row, so that the water-stop agent 19 is applied from one side or both sides. It can be applied. After that, the fixing pin 37 is pulled out and the electric wire holder 31 is returned to the direction orthogonal to the wiring direction, whereby the tension is removed, and the electric wire 16 is returned to the circular cross section in which the waterproofing agent 19 is applied to the inside.

From the above results, even if the number of the electric wires 16 increases, the electric wires 16 can be arranged in a narrow width by using the wide electric wire holder 31. Along with this, the water stop treatment part R
It is possible to apply the water blocking agent 19 to the inside so that the inside can be permeated. Moreover, since the wire holder 31 having a wide width can be used, the work of laying the wire 16 can be easily performed.

Next, a second embodiment of the wire harness waterproofing method and wire harness according to the present invention will be described with reference to FIGS.
It will be described in detail based on. The present embodiment corresponds to claims 1 and 2. The same parts as those in the first embodiment are designated by the same reference numerals, and the description of the overlapping configurations and operations will be omitted. As shown in FIGS. 4 and 5, in the wire harness water-stop treatment method according to the present embodiment, the above-described wire holder 31 is swiveled in advance about the shaft 33, and the through hole 35b of the plate member 34 is fixed to the jig. Fixing hole 36 of plate 14
Then, the fixing pin 37 is fitted and fixed in a direction intersecting the wiring direction. In this case, the electric wire holder 31 is not swivelable like the above-mentioned electric wire holder, and it is possible to use one in which the holding portion 32 is formed at an angle with respect to the wiring direction. With this configuration, the apparent width of the holding portion 32 of the wire holder 31 with respect to the wiring direction becomes narrower. Therefore, even if the number of the wires 16 increases, as in the first embodiment described above. The electric wires 16 can be narrowly aligned by using the wide electric wire holder 31.

Next, a third embodiment of the wire harness waterproofing method and wire harness of the present invention will be described with reference to FIGS. 6 and 7.
It will be described in detail based on. FIG. 6 is a perspective view showing a third embodiment of the method for waterproofing a wire harness according to the present invention,
FIG. 7 is a schematic diagram of a water stopping treatment method for the wire harness in FIG. It should be noted that the present embodiment relates to claims 1, 3, 5, and 5.
It corresponds to 6 and 7. Further, the same parts as those in the first embodiment or the second embodiment described above are designated by the same reference numerals, and the description of the configuration and the operation is omitted.

As shown in FIG. 6, in the waterproof treatment method for the wire harness according to the present embodiment, the waterproof treatment portion R for performing the waterproof treatment has the width D0 larger than the length of the waterproof treatment portion R. An electric wire holder 39 having a U-shaped holding portion 38 is installed in a direction orthogonal to the wiring direction. In the wire holder 39, a disc-shaped plate member 34 may be provided below the shaft 33 that supports the holder 38, as in the case described above with reference to FIG.

In the water-stop treatment method for a wire harness according to the present embodiment, the electric wire holder 39 is provided in the water-stop treatment portion R so as to be orthogonal to the wiring direction (state shown in FIG. 6), and the electric wire 16 is provided. Wiring. Next, tension is applied to the electric wire 16 by turning around the shaft 33 (a state indicated by a chain double-dashed line in FIG. 7). When the plate member 34 is provided in the same manner as described above, the fixing pin 37 is attached to the electric wire holder 3.
9 through the fixing hole 36 of the jig plate 14 through the through hole 35b (see FIG. 3). As a result, the holding portion 38 of the wire holder 39 is obliquely fixed in the wiring direction.

Since the electric wires 16 are bent by the holding portions 38 in a direction intersecting the wiring direction, the electric wires 16 are pressed against the insides of both the holding portions 38 by the tension and aligned in one line. That is, as in the case of using the narrow electric wire holder 39 having the apparent width D1 for the electric wires 16, the water-stop treated portions R are tensioned and aligned in a substantially vertical row, so that one side or both sides Then, the water blocking agent 19 is applied. After that, the electric wire holder 39 is returned to the direction orthogonal to the wiring direction to remove the tension, and the electric wire 16 can be returned to the circular cross section in which the waterproofing agent 19 is applied to the inside.

From the above results, even if the number of the electric wires 16 is increased, the electric wires 16 can be arranged in a narrow width by using the wide electric wire holder 39 that straddles the water blocking treatment portion R. Along with this, it is possible to apply the water blocking agent 19 to the water blocking portion R and allow the water blocking agent to permeate the inside. In addition, since the wide wire holder 39 can be used, the wires 16 can be easily laid.

In addition to the U-shaped wire holders 31 and 39 used in the above-described first to third embodiments, an electric wire holder 41 as shown in FIG. 8 is used as a rod-shaped jig. You can also This corresponds to claim 1. In this wire holder 41, a pair of L-shaped jigs 42,
The wire 42 is used to apply tension to the wire 16, and the L-shaped jig 42 that holds the wire 16 is composed of one rod member, so that the wire 16 is particularly easily laid.

[0038]

As described above, in the wire harness waterproofing method and the wire harness according to the present invention, even if the number of electric wires is increased, the electric wires are arranged in a narrow width by using the wide electric wire holder. be able to. As a result, it is possible to apply a water blocking agent to the water blocking treated portion and allow it to permeate the inside. Further, since a wide electric wire holder can be used, electric wires can be easily laid.

[Brief description of drawings]

FIG. 1 is a perspective view showing a first embodiment of a water stopping treatment method for a wire harness according to the present invention.

FIG. 2 is a schematic diagram showing a method for water blocking of the wire harness in FIG.

3 shows the fixing means in FIG. 1, FIG. 3 (A) is a perspective view, and FIG. 3 (B) is a plan view.

FIG. 4 is a perspective view showing a second embodiment of the method for waterproofing a wire harness according to the present invention.

FIG. 5 is a schematic view showing a method for waterproofing the wire harness in FIG.

FIG. 6 is a perspective view showing a third embodiment of the water stopping treatment method for a wire harness according to the present invention.

FIG. 7 is a schematic view showing a method for water blocking of the wire harness in FIG.

FIG. 8 is a perspective view showing another example of the waterproof treatment method for the wire harness in FIG.

FIG. 9 is a perspective view showing a conventional method for waterproofing a wire harness.

FIG. 10 is a process drawing showing the procedure of the method for treating the waterproof of the wire harness in FIG.

[Explanation of symbols]

14 Jig plate 16 electric wires 19 Waterstop 22 tapes 23 Grommet 31 Electric wire holder (rod-shaped jig) 34 Plate material (fixing means) 35 through hole (fixing means) 36 fixing hole 37 fixing pin 39, 41 Wire holder (rod-shaped jig) R water stop treatment part

Front page continuation (51) Int.Cl. ⁷ Identification code FI theme code (reference) H02G 3/38 H01B 7/28 E (72) Inventor Hiroshi Kinoshita 2464-48 Washazu, Kosai City, Shizuoka Prefecture Yazaki Parts Co., Ltd. 72) Inventor Hitoshi Ushijima 1500, Onjuku, Susono, Shizuoka Prefecture, Yazaki Parts Co., Ltd. (72) Inventor, Yoji Suzuki, 1500, Onjuku, Susono City, Shizuoka Prefecture, Yazaki Parts Co., Ltd. (72) Hara 206-1 F-term in Yazaki Parts Co., Ltd. (reference) 5G309 AA05 AA08 5G313 FA03 FB04 FC05 5G363 AA01 BA02 CA05 CB08 DC02

Claims (7)

[Claims] 1. A method for waterproofing a wire harness, wherein water is applied to an electric wire of a wire harness to be inserted into a grommet for mounting in a panel through hole, the method being performed on a jig plate for wiring the wire harness. The wire harness is routed, and the electric wire is spread in a flat plate shape by applying a tension to the portion to be subjected to the waterproof treatment by a rod-shaped jig, and the waterproof agent is applied from one side or both sides of the spread wire in a flat plate shape. A method for waterproofing a wire harness according to claim 1, wherein a portion coated with the waterproofing agent is rolled into a substantially cylindrical shape, a tape is wound around the portion, and then a grommet is attached. 2. The electric wire holders on both front and rear sides or one side in the wiring direction are arranged in parallel or obliquely with respect to the wiring direction with the portion of the electric wire to be subjected to the water stop treatment interposed therebetween, and the electric wire is held by the electric wire holder. The water-stop treatment method for a wire harness according to claim 1, wherein a tension is applied to a portion for performing the water-stop treatment by arranging the wire. 3. An electric wire holder, which is wider than the length of the electric wire, is arranged at a right angle to the wiring direction at a portion of the electric wire where water stopping treatment is performed, and the electric wire holder is attached after the electric wire is laid. The water-stop treatment method for a wire harness according to claim 1, wherein a tension is applied to a portion for performing the water-stop treatment by turning the portion in parallel or obliquely with respect to the wiring direction. 4. An electric wire holder is arranged at a right angle and a longitudinal direction on one side or both sides in the wiring direction of a portion of the electric wire where the waterproof treatment is performed, and the electric wire holder is clothed after the electric wire is laid. The water-stop treatment method for a wire harness according to claim 1, wherein tension is applied to both sides or one side of the portion to be subjected to the water-stop treatment by rotating the portion in parallel or obliquely with respect to the line direction. 5. The method for treating water stoppage of a wire harness according to claim 3, further comprising fixing means for fixing the wire holder at a predetermined angle position with respect to the wiring direction after turning. 6. The fixing means penetrates through a plate member that is integrally provided in a lower portion of the electric wire holder and movably contacts the upper surface of the jig plate, and a through hole provided in the plate member. The fixing pin for fixing the electric wire holder at a predetermined angle by being fitted into a fixing hole provided in the jig plate, The stop of the wire harness according to claim 5, wherein Water treatment method. 7. A wire harness, which has been waterproofed by the waterproofing method for a wire harness according to any one of claims 1 to 6.