JPH0654606B2 - Waterproof wire harness and method for forming the same - Google Patents
Waterproof wire harness and method for forming the sameInfo
- Publication number
- JPH0654606B2 JPH0654606B2 JP61063924A JP6392486A JPH0654606B2 JP H0654606 B2 JPH0654606 B2 JP H0654606B2 JP 61063924 A JP61063924 A JP 61063924A JP 6392486 A JP6392486 A JP 6392486A JP H0654606 B2 JPH0654606 B2 JP H0654606B2
- Authority
- JP
- Japan
- Prior art keywords
- harness
- wire harness
- tape
- waterproof
- rubber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Landscapes
- Insulated Conductors (AREA)
- Installation Of Indoor Wiring (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は自動車等の車輌用ワイヤーハーネスに防水機能
を具備させた防水ワイヤーハーネスとその形成方法に関
する。Description: TECHNICAL FIELD The present invention relates to a waterproof wire harness in which a wire harness for a vehicle such as an automobile has a waterproof function, and a method for forming the waterproof wire harness.
車輌用のワイヤーハーネス（以下単にハーネスともい
う）は、一般に複数の電線束の外周をテープ巻きにより
電線の集束と保護を行なわせているものであり、車輌の
室内外を仕切る車体壁又はパネルを介して室内外に配設
された各種電気部品の接続に使用されるが、車輌のエン
ジンルーム等に配索されたハーネスに外部から水が飛散
したり、冷却により結露水を生じたりした場合、ハーネ
スに附着した水がハーネスを構成するテープ巻きされた
多数本の集束電線束の間隙にテープ巻きの隙間から侵入
し、ハーネス内に毛細血管現象等により移動して室内に
水が侵入したり、室内電気部品の短絡事故、腐食促進そ
の他種々雑多のトラブルを惹起する要因となっている。BACKGROUND ART A wire harness for a vehicle (hereinafter also simply referred to as a harness) generally has a plurality of electric wire bundles wrapped around a tape to bundle and protect electric wires. It is used to connect various electrical parts arranged indoors and outdoors via the, but when water is splashed from the outside to the harness arranged in the engine room of the vehicle, or when condensed water is generated due to cooling, The water adhering to the harness enters the gap between the many bundled bundled wire bundles that make up the harness through the tape winding gap, moves into the harness due to capillary phenomenon, etc., and water enters the room. It is a cause of various short-circuit accidents of electric parts, acceleration of corrosion, and various other troubles.
そこで、かかるトラブルの発生を防止するため、従来は
ハーネスのエンジンルーム内における配索方法を水の飛
散を直接受けないように改善したり、第５図に示すよう
に車体壁ａを介して室外に配索されたハーネスｂの分岐
部ｃに外装テープを密に巻付けて防水処理を施こしたの
ち、室内の一部配索された部分から車体壁ａの室外に配
索される部分を１ｍ以上にわたり外装テープｄにより２
重巻きし、さらに外装テープｄとハーネスｂの車体壁ａ
に対する装着用グロメットｅのハーネス挿着部ｅ1 との
間隙ｆからの水の侵入を防止する等のため、この間隙ｆ
にグロメットｅの内方又はハーネス挿着部ｅ1 の外方か
ら接着剤ｇを流し込み、その部分をテープｈにより押え
止めする方法がとられている。Therefore, in order to prevent the occurrence of such troubles, conventionally, the wiring method of the harness in the engine room is improved so as not to be directly splashed with water, or as shown in FIG. After the exterior tape is tightly wrapped around the branching portion c of the harness b that is routed to the vehicle to waterproof it, the portion that is routed from the partially routed portion of the room to the outdoor side of the vehicle body wall a is 2 by exterior tape d over 1m or more
Double winding, and then the exterior tape d and harness b, body wall a
In order to prevent water from entering through a gap f between the mounting grommet e and the harness insertion portion e 1 with respect to the
Adhesive g is poured from inside the grommet e or outside the harness insertion portion e 1 and the portion is held down by the tape h.
しかし、ハーネスの配索方法を改善する方法は、最近の
ようにハーネスが肥大化しつつある現況においては限界
に達しており、又、ハーネスｂの分岐部ｃに防水処理を
施こしたり、ハーネスｂに外装テープを巻付ける方法で
は、ハーネスを構成する集束電線の本数が多くなり従っ
て集束電線間の間隙を通して毛細管現象による水の移動
が発生し易い最近のハーネスについて完全な防水を達成
することは困難である。さらに、グロメットｅのハーネ
ス挿着部ｅ1 に接着剤を流し込む方法を併用しても、接
着剤を多数の集束電線束の間隙にまで浸透させることは
事実上困難であり、完全な防水効果を挙げることは不可
能であるのならず、防水処理の作業性も極めて低いとい
う問題点がある。However, the method of improving the wiring method of the harness has reached the limit in the present situation where the harness is getting larger as in recent years, and the branch portion c of the harness b is subjected to a waterproof treatment or the harness b. With the method of wrapping the exterior tape on the wire, the number of focused wires that make up the harness increases, so it is difficult to achieve complete waterproofing of a recent harness in which water tends to move through the gap between the focused wires due to capillary action. Is. Furthermore, even if the method of pouring the adhesive into the harness insertion portion e 1 of the grommet e is also used, it is practically difficult to permeate the adhesive into the gaps between a large number of bundled bundles of electric wires, resulting in a complete waterproof effect. This is impossible, and the workability of waterproofing is extremely low.
本発明はかかる従来のワイヤーハーネスの防水処理上の
問題点に着目してなされたもので、ハーネスを構成する
集束電線束の間隙を通しての水の移動を完全に防止した
防水ワイヤーハーネスとその形成方法を提供することを
目的とする。The present invention has been made by paying attention to the problem in the waterproof treatment of such a conventional wire harness, and provides a waterproof wire harness which completely prevents the movement of water through a gap of a bundle of bundled electric wires constituting the harness, and a method of forming the same. The purpose is to provide.
すなわち本発明は、ワイヤーハーネスのグロメット挿着
部に対応する部位における集束電線束の間隙に耐水性ゴ
ム状弾性体を充填すると共に集束電線の外周部において
一連の膨出部を形成し、グロメット挿着部と耐水性ゴム
状弾性体の膨出部を密着させた状態でテープ巻きにより
固定してなることを特徴とする防水ワイヤーハーネス、
並びにワイヤーハーネスを構成する複数の電線を１〜数
本を単位として所定部位における外周を耐水性ゴム状弾
性状態からなる接着又は融着テープにより所要長さを巻
付け、該テープ巻付けられた複数の電線を該テープ巻付
部を一致させ一体に接着又は融着して集束することを特
徴とする防水ワイヤーハーネスの形成方法である。That is, the present invention fills the gap of the focused wire bundle in the portion corresponding to the grommet insertion portion of the wire harness with the waterproof rubber-like elastic body and forms a series of bulging portions on the outer peripheral portion of the focused wire, and the grommet insertion attachment Waterproof wire harness, characterized in that it is fixed by winding a tape in a state where the bulging part of the waterproof rubber-like elastic body is in close contact
Also, a plurality of electric wires that form a wire harness are wound around the outer periphery of a predetermined portion with a bonding or fusion tape made of a water-resistant rubber-like elastic state in a unit of one to several wires, and the plurality of tapes are wound. Is a method for forming a waterproof wire harness, characterized in that the electric wires of (1) are aligned with the tape winding portions and integrally bonded or fused to be bundled.
以下に本発明を、実施例を示す添付の図面に基づいてさ
らに詳細に説明する。Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings illustrating an embodiment.
第１図に本発明の防水ワイヤーハーネスの要部斜視図、
第２図に第１図のＡ−Ａ断面図を示した。FIG. 1 is a perspective view of a main part of a waterproof wire harness of the present invention,
FIG. 2 shows a sectional view taken along the line AA of FIG.
図において、Ａは本発明の防水ワイヤーハーネスであ
り、個々の電線１ａの多数本外装テープにより集束して
なるハーネス１の集束電線束の間隙に耐水性ゴム状弾性
体２をハーネス１の所定部位において所定長さｌにわた
り充填すると共に集束電線束の外周部において一連の膨
出部２′を形成して構成される。In the figure, A is a waterproof wire harness of the present invention, in which a waterproof rubber-like elastic body 2 is provided at a predetermined portion of the harness 1 in a gap of a bundle of bundled wires of a harness 1 which is bundled by a plurality of outer tapes of individual wires 1a. It is constructed by filling a predetermined length l and forming a series of bulging portions 2'on the outer peripheral portion of the bundle of focused electric wires.
この構成において集束電線束の間隙に充填される耐水性
ゴム状弾性体２としては、例えばブダジエン系ゴム、オ
レフィン系ゴム、ポリウレタンゴム、ポリエチレン−合
成ゴム系共重合物等を挙げることができる。Examples of the water resistant rubber-like elastic body 2 to be filled in the gaps of the bundle of bundled electric wires in this configuration include budadiene rubber, olefin rubber, polyurethane rubber, polyethylene-synthetic rubber copolymer and the like.
又、耐水性ゴム状弾性体２が充電されるハーネス１の所
定部位としては、第４図に示されるようにハーネス１を
車体壁５に装着するグロメット６のハーネス挿着部６ａ
に挿着される部位であり、又、その部位に充填される所
要長さｌはハーネス１の外周に浮き出たゴム状弾性体２
がハーネス挿着部６ａの内壁と十分に密着しうるように
ハーネス挿着部６ａの長さより大であること望ましい。Further, as the predetermined portion of the harness 1 to which the waterproof rubber-like elastic body 2 is charged, as shown in FIG. 4, the harness insertion portion 6a of the grommet 6 for mounting the harness 1 on the vehicle body wall 5 is used.
The rubber-like elastic body 2 is a portion to be inserted into the harness 1
Is preferably longer than the length of the harness insertion portion 6a so that it can sufficiently adhere to the inner wall of the harness insertion portion 6a.
次に本発明の防水ワイヤーハーネスＡの形成方法を第３
(a)〜(c)に示す工程図に基づいて説明する。Next, the method of forming the waterproof wire harness A of the present invention
Description will be given based on the process charts shown in (a) to (c).
先ず第３図(a)に示されるように、ハーネス１を構成す
る個々の電線１ａを１本宛（電線１ａが細径である場合
は２〜数本を纏めてもよい）取出し、片面又は両面に接
着剤を塗布した上記のゴム状弾性体２を基材とする厚さ
約０．５mm、巾約３mm以上のテープ２ａを電線１ａの所
定部位３に１周以上巻付けてテープ２ａと電線１ａ及び
テープ２ａ相互を接着する。この場合、テープ２ａの基
材としてポリエチレン−合成ゴム系共重合体を使用すれ
ば、テープ自体に融着性をもたせることができ、引張り
乍ら巻付けるのみで融着することができる。First, as shown in Fig. 3 (a), each individual electric wire 1a constituting the harness 1 is addressed to one (if the electric wire 1a has a small diameter, two to several wires may be collected), and one side or A tape 2a having a thickness of about 0.5 mm and a width of about 3 mm, which is based on the rubber-like elastic body 2 coated with an adhesive on both sides, is wound around the predetermined portion 3 of the electric wire 1a for one or more turns to form the tape 2a. The electric wire 1a and the tape 2a are bonded to each other. In this case, if a polyethylene-synthetic rubber-based copolymer is used as the base material of the tape 2a, the tape itself can be made fusible, and the tape can be fused only by winding it by pulling.
次に第３図(b)図に示すように、ハーネス１を構成する
所定の電線１ａについて同様のテープ巻きを施こしたの
ち、第３図(c)に示すようにテープ巻付部４を一致させ
て集束し、テープ巻付部４において相互に接着又は融着
させて外形をほぼ円形に仕上げ、電線相互間の間隙を耐
水性ゴム状弾性体２により密充填する。このテープ巻付
部４の上をさらに一周以上テープ２ａにより巻付け接着
又は融着することにより本発明の防水ワイヤーハーネス
Ａが形成される。Next, as shown in FIG. 3 (b), after applying a similar tape winding on a predetermined electric wire 1a constituting the harness 1, the tape winding portion 4 is attached as shown in FIG. 3 (c). The tapes are aligned and focused, and are adhered or fused to each other at the tape winding portion 4 to finish the outer shape into a substantially circular shape, and the gap between the electric wires is densely filled with the waterproof rubber-like elastic body 2. The waterproof wire harness A of the present invention is formed by further winding, adhering or fusing the tape winding portion 4 with the tape 2a for one round or more.
なお、最後のテープ巻きは外形をほぼ円形に仕上げた状
態で、その外周にテープ２ａが浮き出た状態になってい
るときは省略することができる。The last winding of the tape can be omitted when the outer shape of the tape is finished to be substantially circular and the tape 2a is in a protruding state on the outer circumference thereof.
本発明の防水ワイヤーハーネスＡを車輌の室内外を仕切
る車体壁５に貫挿固定するに際しては、第４図に示すよ
うに車体壁５に装着するグロメット６のハーネス挿着部
６ａにハーネスＡのテープ巻付部４を挿着し、ハーネス
挿着部６ａとテープ巻付部４におけるゴム状弾性体２と
の弾性接触によりその内周に密着させたのち、公知の外
装テープ７を用いてハーネス挿着部６ａの外周並びにテ
ープ巻付部４及びその附近のハーネス１の外周に巻付け
て本発明の防水ワイヤーハーネスＡをグロメット固定す
る。When the waterproof wire harness A of the present invention is inserted and fixed to the vehicle body wall 5 that partitions the inside and outside of the vehicle, the harness A is attached to the harness insertion portion 6a of the grommet 6 attached to the vehicle body wall 5 as shown in FIG. The tape winding portion 4 is inserted and attached, and the harness insertion portion 6a and the rubber-like elastic body 2 in the tape winding portion 4 are elastically brought into close contact with the inner periphery of the harness winding portion 6a. The waterproof wire harness A of the present invention is grommet-fixed by being wound around the outer periphery of the insertion portion 6a and the outer periphery of the tape winding portion 4 and the harness 1 in the vicinity thereof.
このようにハーネスＡが固定配索されることによりハー
ネスＡを構成する多数の集束電線束１の間隙に所要の長
さに充填された耐水性のゴム状弾性体２は、この間隙を
毛細管現象によって車輌室内に侵入せんとする水を完全
に阻止する作用を有する。又、ハーネスＡの外周に附着
して室内に侵入せんとする水も、グロメット６のハーネ
ス挿着部６ａにハーネスＡのテープ巻付部４を挿着させ
ることにより、テープ巻付部４の外周がハーネス挿着部
６ａの内壁に弾性的に密着して完全に阻止される。By fixing the harness A in this way, the water-resistant rubber-like elastic body 2 filled in the gaps of the many bundled electric wire bundles 1 forming the harness A to a required length has a capillary phenomenon. Has the effect of completely blocking water from entering the vehicle compartment. Also, for water that attaches to the outer periphery of the harness A and enters the room, by inserting the tape winding portion 4 of the harness A into the harness insertion portion 6a of the grommet 6, the outer periphery of the tape winding portion 4 Is elastically adhered to the inner wall of the harness insertion portion 6a and completely blocked.
本発明の防水ワイヤーハーネスは、ワイヤーハーネスの
グロメット挿着部に対応する部位における集束電線束の
間隙に耐水性ゴム状弾性体を充填すると共に集束電線の
外周部において一連の膨出部を形成し、グロメット挿着
部と耐水性ゴム状弾性体の膨出部を密着させた状態でテ
ープ巻きにより固定してなるものであるから、車輌のエ
ンジンルーム等において飛散した水がハーネスのグロメ
ット挿着部を介して車輌室内に侵入する等のトラブルを
完全に防止することができる。又、本発明の防水ワイヤ
ーハーネスの形成方法は耐水性のゴム状弾性基材からな
る接着又は融着テープを個々の電線に所要長さに巻付け
たのちテープ巻付部を一体に集束する方法であるから容
易かつ安価に形成することができる等のすぐれた利点を
有する。The waterproof wire harness of the present invention forms a series of bulging portions in the outer peripheral portion of the focused electric wire while filling the gap of the focused electric wire bundle in the portion corresponding to the grommet insertion portion of the wire harness with the waterproof rubber-like elastic body, Since the grommet insertion part and the bulging part of the water-resistant rubber-like elastic material are in close contact with each other and are fixed by tape winding, the water spattered in the engine room of the vehicle, etc. It is possible to completely prevent a trouble such as intrusion into the vehicle interior through the vehicle. Further, the method for forming a waterproof wire harness of the present invention is a method in which an adhesive or fusing tape made of a water-resistant rubber-like elastic base material is wound around individual electric wires to a required length and then the tape winding portion is integrally focused. Therefore, it has an excellent advantage that it can be formed easily and inexpensively.
第１図は本発明の防水ワイヤーハーネスの要部斜視図、
第２図は第１図のＡ−Ａ断面図、第３図(a)〜(c)は本発
明防水ワイヤーハーネスの形成工程説明図、第４図は本
発明防水ワイヤーハーネスの作用説明図、第５図は従来
のワイヤーハーネスにおける防水手段の説明図である。 １……ワイヤーハーネス、２……耐水性ゴム状弾性体、
４……テープ巻付部、６……グロメット、６ａ……ワイ
ヤーハーネス挿着部。FIG. 1 is a perspective view of a main part of a waterproof wire harness of the present invention,
FIG. 2 is a sectional view taken along the line AA of FIG. 1, FIGS. 3 (a) to (c) are explanatory views of a process for forming the waterproof wire harness of the present invention, and FIG. FIG. 5 is an explanatory view of waterproofing means in a conventional wire harness. 1 ... Wire harness, 2 ... Water resistant rubber-like elastic body,
4 ... Tape winding part, 6 ... Grommet, 6a ... Wire harness insertion part.
Claims (2)
応する部位における集束電線束の間隙に耐水性ゴム状弾
性体を充填すると共に集束電線の外周部において一連の
膨出部を形成し、グロメット挿着部と耐水性ゴム状弾性
体の膨出部を密着させた状態でテープ巻きにより固定し
てなることを特徴とする防水ワイヤーハーネス。1. A waterproof rubber-like elastic body is filled in a gap of a bundle of focused electric wires in a portion corresponding to a grommet insertion portion of a wire harness, and a series of bulging portions are formed on an outer peripheral portion of the focused electric wire to insert the grommet. A waterproof wire harness, characterized in that it is fixed by winding a tape in a state where the bulging portion of the waterproof rubber-like elastic body is in close contact with the above portion.
１〜数本を単位として所定部位における外周を耐水性ゴ
ム状弾性基材からなる接着又は融着テープにより所要長
さ巻付け、該テープが巻付けられた複数の電線を該テー
プ巻付部を一致させ一体に接着又は融着して集束するこ
とを特徴とする防水ワイヤーハーネスの形成方法。2. A plurality of electric wires forming a wire harness are wound around the outer periphery of a predetermined portion at a predetermined portion with an adhesive or fusing tape made of a water-resistant rubber-like elastic base material for a required length. A method for forming a waterproof wire harness, characterized in that a plurality of wound electric wires are united by adhering or fusing together the tape winding portions so that the tape winding portions are aligned with each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61063924A JPH0654606B2 (en) | 1986-03-24 | 1986-03-24 | Waterproof wire harness and method for forming the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61063924A JPH0654606B2 (en) | 1986-03-24 | 1986-03-24 | Waterproof wire harness and method for forming the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62222515A JPS62222515A (en) | 1987-09-30 |
| JPH0654606B2 true JPH0654606B2 (en) | 1994-07-20 |
Family
ID=13243374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61063924A Expired - Lifetime JPH0654606B2 (en) | 1986-03-24 | 1986-03-24 | Waterproof wire harness and method for forming the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0654606B2 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03280365A (en) * | 1990-03-28 | 1991-12-11 | Yazaki Corp | Waterproof seal structure of wire hardness |
| JP2573906Y2 (en) * | 1991-08-06 | 1998-06-04 | 矢崎総業株式会社 | Water stopping structure of electric wire bundle |
| JP2006085950A (en) * | 2004-09-14 | 2006-03-30 | Dainichiseika Color & Chem Mfg Co Ltd | Electric wire bundling method |
| JP2007280708A (en) * | 2006-04-05 | 2007-10-25 | Yazaki Corp | Wire harness and its cabling method |
| JP2013192343A (en) * | 2012-03-13 | 2013-09-26 | Yazaki Corp | Water cutoff processing method and water cutoff processing structure of wire harness |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53141384U (en) * | 1977-04-15 | 1978-11-08 | ||
| JPS58159824U (en) * | 1982-04-17 | 1983-10-25 | ダイハツ工業株式会社 | Seal structure of harness penetration part |
| JPS5925115U (en) * | 1982-08-06 | 1984-02-16 | 古河電気工業株式会社 | Grommets for wire bundles |
| JPS5986827U (en) * | 1982-11-30 | 1984-06-12 | 日野自動車株式会社 | Grommet for wire harness |
-
1986
- 1986-03-24 JP JP61063924A patent/JPH0654606B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62222515A (en) | 1987-09-30 |
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