JPH11178164A - Structure for attaching grommet to wire harness - Google Patents

Structure for attaching grommet to wire harness

Info

Publication number
JPH11178164A
JPH11178164A JP9337467A JP33746797A JPH11178164A JP H11178164 A JPH11178164 A JP H11178164A JP 9337467 A JP9337467 A JP 9337467A JP 33746797 A JP33746797 A JP 33746797A JP H11178164 A JPH11178164 A JP H11178164A
Authority
JP
Japan
Prior art keywords
grommet
wire harness
cylindrical
wire
polymer
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.)
Granted
Application number
JP9337467A
Other languages
Japanese (ja)
Other versions
JP3336936B2 (en
Inventor
Tadakazu Kuromiya
Hisashi Tanaka
恒 田中
忠和 黒宮
Original Assignee
Sumitomo Wiring Syst Ltd
住友電装株式会社
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sumitomo Wiring Syst Ltd, 住友電装株式会社 filed Critical Sumitomo Wiring Syst Ltd
Priority to JP33746797A priority Critical patent/JP3336936B2/en
Publication of JPH11178164A publication Critical patent/JPH11178164A/en
Application granted granted Critical
Publication of JP3336936B2 publication Critical patent/JP3336936B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Abstract

PROBLEM TO BE SOLVED: To attach a water-proof grommet to a wire harness in a small number of working processes, when inserting in a water-proof state into the through hole of a partition (steel sheet panel) of a vehicle the wire harness comprising a plurality of bundled wires with relatively large diameters. SOLUTION: Using a grommet having a circular-plate portion 100A at whose peripheral edge there is formed an attachment portion 100a for attaching the grommet to the through hole of a vehicle body panel and having a cylindrical portion 100B protruded taperingly from the near center of the circular-plate portion 100A, a gel-like polymer 20 is disposed in the peripheral portions of wires w1-w3 of a wire harness (W/H) wherein the W/H is held by the tapering cylindrical portion 100B to fill the gel-like polymer 20 into the clearance between the wires w1-w3 and the clearance between the wires w1-w3 and the inner surface of the cylindrical portion 100B by deforming the gel-like polymer 20 through the elastic force of the tapering cylindrical portion 100B.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION
【0001】[0001]
【発明の属する技術分野】本発明はグロメットのワイヤ
ハーネスへの取付け構造に関し、より詳しくは、簡単な
作業で比較的太径の電線を束ねたワイヤハーネスにグロ
メットを止水状態で取り付けることができるようにする
ものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for attaching a grommet to a wire harness, and more particularly, to attaching a grommet to a wire harness in which relatively large-diameter electric wires are bundled in a watertight state by a simple operation. Is to do so.
【0002】[0002]
【従来の技術】通常、自動車において、電源やインバー
タを備えた電気系統部は車室の床下に配置され、外部と
は車底部の隔壁(鋼板パネル)により遮断されている。
そして、電気系統部に接続された3本の高圧系電線から
なる3相交流用のワイヤハーネスは、その所定部分にグ
ロメットを止水状態で取り付けて、車底部の隔壁(鋼板
パネル)に形成した貫通穴を通して外部に引き出す一
方、上記グロメットの外周を隔壁(鋼板パネル)に形成
した貫通穴に止水状態で取り付けることにより、外部か
らの水分が電気系統部に浸入しないようにしている。
2. Description of the Related Art Generally, in an automobile, an electric system including a power supply and an inverter is arranged under the floor of a vehicle compartment, and is isolated from the outside by a partition (steel plate) at the bottom of the vehicle.
The wire harness for three-phase alternating current composed of three high-voltage wires connected to the electric system was formed with a grommet attached to a predetermined portion of the wire harness in a watertight state, and formed on a partition (steel panel) at the bottom of the vehicle. While the grommet is pulled out to the outside through the through hole, the outer periphery of the grommet is attached to the through hole formed in the partition wall (steel plate) in a water-stopped state, so that moisture from the outside does not enter the electric system.
【0003】上記外部に引き出した3相交流用のワイヤ
ハーネスは、車底部の隔壁(鋼板パネル)に沿って車前
方へと導かれ、エンジンコンパートメント内に配置され
ているモータに接続されている。
The three-phase alternating current wiring harness drawn out is guided to the front of the vehicle along a partition (steel plate) at the bottom of the vehicle, and is connected to a motor disposed in an engine compartment.
【0004】図6は上記3相交流用のワイヤハーネスに
グロメットを取り付けた状態を示している。すなわち、
3相交流用のワイヤハーネス(W/H)は、3本の高圧
系電線wl、w2、w3が、それぞれ太径で、かつ、防
水用のゴルゲートチューブ2で完全に被覆された状態に
なっている。グロメット10はゴムまたはエラストマー
の成形体からなり、円板10Aの周縁を略90°屈曲さ
せて周壁部10aを形成し、該周壁部10aの外周に隔
壁(鋼板パネル)の貫通穴の端縁が嵌合する溝11を形
成する一方、円板10Aに周壁部10aとは反対方向に
突出する3個の先細りの円筒部10B−1、10B−
2、10B−3を形成した構成からなる。
FIG. 6 shows a state in which a grommet is attached to the wire harness for three-phase alternating current. That is,
The three-phase AC wiring harness (W / H) is in a state in which three high-voltage wires wl, w2, and w3 each have a large diameter and are completely covered by the waterproof gate gate tube 2. ing. The grommet 10 is made of a molded article of rubber or an elastomer, and forms a peripheral wall portion 10a by bending the peripheral edge of the disk 10A by approximately 90 °. An edge of a through hole of a partition wall (steel plate) is formed on the outer periphery of the peripheral wall portion 10a. While forming the groove 11 to be fitted, three tapered cylindrical portions 10B-1 and 10B- protruding from the disk 10A in the opposite direction to the peripheral wall portion 10a.
2, 10B-3.
【0005】3本の高圧系電線wl、w2、w3は、そ
れぞれ、円板10A側から円筒部10B−1、10B−
2、10B−3内に挿通して、円筒部先端の開口から引
き出している。ここで、先細りの円筒部10B−1、1
0B−2、10B−3の各先端の開口の内径は、電線w
l、w2、w3の外径より若干小さくなっており、電線
を挿通することにより、先端部の内面で電線を弾性保持
して、電線wl、w2、w3を固定している。かかる保
持構造により、電線wl、w2、w3と円筒部10B−
1、10B−2、10B−3の内面との間に殆ど隙間を
生じることなく電線を保持することができるが、止水を
完全とするために、通常、円筒部10Bー1、10B−
2、10B−3の先端から電線wl、w2、w3の導出
部の外周にかけて粘着テープTを巻き付けている。この
ようにしてグロメット10を取り付けたワイヤハーネス
(W/H)は、図示しない車底部の隔壁(鋼板パネル)
に形成した貫通穴に挿通し、グロメットの周壁部10a
の外周に設けた溝11に隔壁(鋼板パネル)の貫通穴の
端縁を嵌合して、グロメットを止水状態で貫通穴に取り
付ける。
[0005] The three high-voltage wires wl, w2, w3 are respectively connected to the cylindrical portions 10B-1, 10B- from the disk 10A side.
2, 10B-3, and pulled out from the opening at the tip of the cylindrical portion. Here, the tapered cylindrical portion 10B-1, 1
The inner diameter of the opening at each end of 0B-2 and 10B-3 is the electric wire w
The diameters of the wires wl, w2, and w3 are slightly smaller than the outer diameters of l, w2, and w3, and the wires are elastically held at the inner surface of the distal end portion by inserting the wires. With such a holding structure, the electric wires wl, w2, w3 and the cylindrical portion 10B-
1, 10B-2, 10B-3 can hold the electric wire with almost no gap between the inner surfaces thereof. However, in order to complete the water blocking, the cylindrical portions 10B-1, 10B-
The adhesive tape T is wound around the leading ends of the wires 2, 10B-3 and the outer circumferences of the lead-out portions of the electric wires wl, w2, w3. The wire harness (W / H) to which the grommet 10 is attached in this manner is mounted on a partition (steel plate) at the bottom of the vehicle (not shown).
Through the through-hole formed in the peripheral wall portion 10a of the grommet
The edge of the through hole of the partition wall (steel panel) is fitted into the groove 11 provided on the outer periphery of the grommet, and the grommet is attached to the through hole in a water-stop state.
【0006】[0006]
【発明が解決しようとする課題】上記のように、3相交
流用のワイヤハーネスを車両の隔壁(鋼板パネル)の貫
通穴に止水状態に挿通して配索する場合、3個の円筒部
を突設したグロメットを用い、3本の高圧系電線wl、
w2、w3を個別にグロメットの円筒部に止水状態に挿
通させるため、作業工数が多くなるという問題点があっ
た。また、止水を完全にするために3個の円筒部にそれ
ぞれ粘着テープを巻き付けているため作業がより繁雑に
なっていた。また、グロメットには電線挿通用の円筒部
を3個形成するので、グロメットの全体の外径(円板
部)が大きくなり、隔壁(鋼板パネル)に形成する貫通
穴も大きくしなければならなかった。
As described above, when a three-phase alternating current wire harness is inserted into a through hole of a partition (steel panel) of a vehicle in a water-stop state and is routed, three cylindrical portions are provided. Using a grommet protruding from the three high-voltage wires wl,
Since w2 and w3 are individually inserted into the cylindrical portion of the grommet in a water-stop state, there is a problem that the number of working steps increases. In addition, since the adhesive tape is wound around each of the three cylindrical portions in order to complete the water stoppage, the operation is more complicated. In addition, since the grommet is formed with three cylindrical portions for inserting electric wires, the entire outer diameter (disc portion) of the grommet becomes large, and the through hole formed in the partition wall (steel panel) must also be made large. Was.
【0007】本発明は上記のような事情に鑑みてなされ
たもので、複数本の比較的太径の電線を東ねたワイヤハ
ーネスを車両の隔壁(鋼板パネル)の貫通穴に止水状態
に挿通する場合に、少ない作業工数でワイヤハーネスに
止水用のグロメットを取り付けることができようにする
ことを課題としている。
SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned circumstances, and a wire harness in which a plurality of relatively large-diameter electric wires are laid in a through hole of a partition wall (steel plate) of a vehicle is provided in a water-stop state. An object of the present invention is to make it possible to attach a water stopping grommet to a wire harness with a small number of work steps when inserting the wire harness.
【0008】[0008]
【課題を解決するための手段】上記課題を解決するため
に、本発明は、請求項1で、ゴムまたはエラストマーか
らなり、周縁に車体パネル貫通穴への取付け部を形成し
た円板部と、該円板部の略中央より先細りに突出させた
円筒部とを備えたグロメットを用い、比較的太径の電線
を束ねたワイヤハーネスをグロメット内部に円板部側か
ら円筒部へと挿通して、ワイヤハーネスの所定部を先細
りの円筒部がその弾性により締め付け保持しているグロ
メットのワイヤハーネスへの取付け構造であって、上記
ワイヤハーネスの先細りの円筒部で保持される部分の各
電線の周囲にはゲル状ポリマーを配置しており、該ゲル
状ポリマーを先細りの円筒部の弾性力で変形させて電線
束の電線間及び電線束と円筒部内面間の隙間に充填して
いることを特徴とするグロメットのワイヤハーネスへの
取付け構造を提供している。
In order to solve the above-mentioned problems, the present invention is directed to the first aspect of the present invention, wherein a disk portion made of rubber or elastomer and having a peripheral portion formed with an attachment portion to a vehicle body panel through-hole is provided. Using a grommet having a cylindrical portion that is tapered from the approximate center of the disk portion, insert a wire harness, which is a bundle of relatively large-diameter electric wires, into the grommet from the disk portion side to the cylindrical portion. A mounting structure of the grommet to the wire harness, wherein the tapered cylindrical portion of the wire harness is tapered and held by its elasticity to the wire harness, and the periphery of each wire at a portion held by the tapered cylindrical portion of the wire harness. Is characterized in that the gel polymer is deformed by the elastic force of the tapered cylindrical portion to fill gaps between the wires of the wire bundle and between the wire bundle and the inner surface of the cylindrical portion. When That provides a mounting structure of the grommet of the wire harness.
【0009】具体的には、上記ゲル状ポリマーは短冊状
の成形体であり、該短冊状成形体を電線束の各電線の外
周を包囲するように電線束に巻き付けている(請求項
2)。
Specifically, the gel-like polymer is a strip-shaped molded body, and the strip-shaped molded body is wound around the wire bundle so as to surround the outer periphery of each wire of the wire bundle. .
【0010】また、上記ゲル状ポリマーはその外周に略
等間隔に複数の凹部を設けたブロック状の成形体であ
り、該ブロック状成形体の複数の凹部のそれぞれに電線
を嵌め入れている(請求項3)。
The gel polymer is a block-shaped molded body having a plurality of concave portions provided at substantially equal intervals on the outer periphery thereof, and an electric wire is fitted into each of the plurality of concave portions of the block-shaped molded body ( Claim 3).
【0011】上記ゲル状ポリマーとは、ゴム、エラスト
マーに比べて変形しやすく、小さな外力によって容易に
伸縮し、微小な隙間にも侵入する変形性を備えたポリマ
ーである。具体的には、エチレンとスチレンとの共重合
ポリマー(PE系ポリマー)を主剤に、該主剤の作る網
目構造の隙間にパラフィン系オイルとナフテン系オイル
の混合オイルを捕捉させた組成物を挙げることができ
る。ゲル状ポリマーは通常熱可塑性で所望の形状に成形
できる。よって、上記のように、短冊状、凹部を備えた
プロック状等に成形して、ワイヤハーネスの所定部分の
各電線がほぼゲル状ポリマーで包囲されるように、ワイ
ヤハーネスに装着するのが好ましい。
The above-mentioned gel polymer is a polymer which is easily deformed as compared with rubber and elastomer, easily expands and contracts with a small external force, and has a deformability capable of penetrating into minute gaps. Specifically, a composition in which a copolymer of ethylene and styrene (PE polymer) is used as a main component, and a mixed oil of a paraffinic oil and a naphthenic oil is trapped in gaps in a network structure formed by the main material. Can be. Gel-like polymers are usually thermoplastic and can be shaped into any desired shape. Therefore, as described above, it is preferable that the wire harness is formed into a strip shape, a block shape having a concave portion, or the like, and attached to the wire harness such that each wire of a predetermined portion of the wire harness is substantially surrounded by the gel polymer. .
【0012】上記グロメットのワイヤハーネスへの取付
け構造では、ワイヤハーネスを構成する複数の電線を個
別にグロメットの円筒部に挿通するといった作業を行う
必要がなく、複数の電線を束ねて一度にグロメットに挿
通することができる。よって、グロメットの取付け作業
工数を少なくできる。また、グロメットには比較的大径
の円筒部を1個設けるだけでよいので、グロメットの円
板部を小径にできる。また、ワイヤハーネスの挿通時、
ワイヤハーネスの円筒部に挿通する部分の各電線の周囲
にゲル状ポリマーを配置するだけで、グロメットの円筒
部とワイヤハーネスの隙間及び電線間の隙間より水が浸
入するのを防止することができる。よって、挿通後にテ
ープ巻き等を行う必要がなく、作業がより簡単になる。
In the structure for attaching the grommet to the wire harness, it is not necessary to individually insert a plurality of wires constituting the wire harness into the cylindrical portion of the grommet. Can be penetrated. Therefore, man-hours for mounting the grommet can be reduced. In addition, since only one relatively large-diameter cylindrical portion needs to be provided on the grommet, the disk portion of the grommet can be reduced in diameter. Also, when inserting the wire harness,
It is possible to prevent water from entering through the gap between the cylindrical portion of the grommet, the wire harness, and the gap between the wires by merely arranging the gel polymer around each of the electric wires in the portion inserted into the cylindrical portion of the wire harness. . Therefore, there is no need to wind the tape after the insertion, and the operation becomes easier.
【0013】[0013]
【発明の実施の形態】以下、本発明の実施形態を図面を
参照して説明する。図1は3相交流用のワイヤハーネス
を示し、各々がコルゲートチューブ2により外装されて
いる3本の高圧系電線wl、w2、w3をテープ22で
束ね、所定部分にゲル状ポリマーを短冊状に成形した成
形体20を巻き付けている。図2はゲル状ポリマーの短
冊状成形体20を巻き付け部分の断面を示しており、各
高圧系電線wl、w2、w3の外周がほぼ完全に覆われ
るようにゲル状ポリマーの短冊状成形体20を八の字状
に巻き付けている。
Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a wire harness for three-phase alternating current, in which three high-voltage electric wires wl, w2, and w3, each of which is covered with a corrugated tube 2, are bundled with a tape 22, and a gel-like polymer is stripped at a predetermined portion. The formed body 20 is wound. FIG. 2 shows a cross section of a portion where the strip-shaped molded body 20 of the gel polymer is wound, and the strip-shaped molded article 20 of the gel polymer is formed so that the outer circumference of each of the high-voltage electric wires wl, w2 and w3 is almost completely covered. Is wound in a figure eight shape.
【0014】図3 (A) (B)はグロメットを示し、該
グロメット100はゴムまたはエラストマーの成形体か
らなり、円板100Aの周縁を略90°屈曲させて周壁
部100aを形成し、該周壁部100aの外周に隔壁
(鋼板パネル)の貫通穴の端縁が嵌合する溝11を形成
する一方、円板100Aのほぼ中央に周壁部100aと
は反対方向に突出する先細りの円筒部100Bを形成し
ている。
FIGS. 3 (A) and 3 (B) show a grommet. The grommet 100 is made of a molded article of rubber or an elastomer, and forms a peripheral wall portion 100a by bending a peripheral edge of a disc 100A by approximately 90 °. On the outer periphery of the portion 100a, a groove 11 is formed in which the edge of the through hole of the partition wall (steel plate) is fitted. Has formed.
【0015】上記グロメット100のワイヤハーネス
(W/H)への取付けは以下のようにして行う。すなわ
ち、図示しないワイヤハーネス挿通用治具を用いて、グ
ロメット100の円筒部100Bの内径を拡大させた
後、図4(A)に示すように、ゲル状ポリマーの短冊状
の成形体20を巻き付けたワイヤハーネス(W/H)
を、グロメット100の円板100A側から円筒部10
0Bへ挿通する。ここで、ワイヤハーネス(W/H)は
ゲル状ポリマーの短冊状の成形体20を巻き付けた部分
が円筒部100Bの内面で包囲される位置となるよう挿
通させる。
The grommet 100 is mounted on a wire harness (W / H) as follows. That is, using a wire harness insertion jig (not shown), the inner diameter of the cylindrical portion 100B of the grommet 100 is enlarged, and then, as shown in FIG. Wire harness (W / H)
From the disk 100A side of the grommet 100 to the cylindrical portion 10
0B. Here, the wire harness (W / H) is inserted so that the portion where the strip-shaped molded body 20 of the gel polymer is wound is a position surrounded by the inner surface of the cylindrical portion 100B.
【0016】この後、グロメット100の円筒部100
Bの内径を縮小させ、図4(B)に示すように、ゲル状
ポリマーの短冊状の成形体20と共にワイヤハーネス
(W/H)を締め付ける。ここで、ゲル状ポリマーの短
冊状の成形体20は、円筒部100Bの弾性力(締め付
け力)を受けて変形し、図4(C)に示すように、電線
wl、w2、w3の間の隙間及び電線wl、w2、w3
と円筒部100Bの内面との間の隙間を埋めるように伸
長する。これにより、円筒部100B内は水が浸入する
ような隙間を生じることなく、電線w1、w2、w3と
ゲル状ポリマー20で埋め尽くされ、グロメット100
内は止水状態となる。このように、所定部分にゲル状ポ
リマーの短冊状の成形体を巻き付けた3本の電線束をグ
ロメットの1 個の円筒部に挿通するだけで、ワイヤハー
ネス (W/ H) にグロメットを上水状態で取り付けるこ
とができる。よって、従来の3本の電線をグロメットの
3個の円筒部に挿通してテープ巻きをするような作業の
繁雑さを解消できる。
Thereafter, the cylindrical portion 100 of the grommet 100
The inner diameter of B is reduced, and the wire harness (W / H) is tightened together with the strip shaped body 20 of the gel polymer as shown in FIG. 4B. Here, the strip shaped body 20 of the gel polymer is deformed by receiving the elastic force (tightening force) of the cylindrical portion 100B, and as shown in FIG. 4 (C), the gap between the electric wires wl, w2, and w3. Gap and electric wires wl, w2, w3
And extend so as to fill a gap between the inner surface of the cylindrical portion 100B. Accordingly, the inside of the cylindrical portion 100B is filled with the electric wires w1, w2, and w3 and the gel polymer 20 without forming a gap into which water enters, and the grommet 100 is formed.
The inside is in a water stop state. In this manner, the grommet can be supplied to the wire harness (W / H) simply by inserting the three wire bundles, each of which is formed by winding a strip of the gel polymer around a predetermined portion, into one cylindrical portion of the grommet. Can be installed in state. Therefore, it is possible to eliminate the complexity of the operation of inserting the conventional three wires through the three cylindrical portions of the grommet and winding the tape.
【0017】上記グロメット100を取り付けたワイヤ
ハーネス(W1/H)は、従来と同様に、図示しない車
底部の隔壁 (鋼板パネル) に形成した貫通穴に挿通し、
グロメットの周壁部100aの外周に設けた溝11に隔壁
(鋼板パネル)の貫通穴の端縁を嵌合して、グロメット
を止水状態で貫通穴に取り付ける。
The wire harness (W1 / H) to which the grommet 100 is attached is inserted into a through hole formed in a partition (steel plate) at the bottom of the vehicle (not shown), as in the prior art.
The grommet is fitted in the groove 11 provided on the outer periphery of the peripheral wall portion 100a of the grommet with the through-hole edge of the partition wall (steel panel), and the grommet is attached to the through-hole in a water-stopped state.
【0018】上記実施形態ではゲル状ポリマーを短冊状
に成形した成形体を用いたが、ゲル状ポリマーを比較的
太幅の紐状に成形した成形体を用いてもよい。
In the above-described embodiment, a molded product obtained by molding a gel polymer into a strip shape is used. However, a molded product obtained by molding a gel polymer into a relatively wide string may be used.
【0019】図5は他の実施形態を示している。すなわ
ち、本実施形態では、上記ゲル状ポリマーの短冊状の成
形体20を用いる代わりに、ゲル状ポリマーを用いて成
形した、外周に略等間隔を空けて3個の円弧状の凹部3
0a、30b、30cを備えたブロック状の成形体30
(図(A))を用い、該成形体30の3個の凹部30
a、30b、30cに3本の電線wl、w2、w3を嵌
め込んだ後、3本の電線wl、w2、w3をテープTで
結束している(図(B))。そして、かかるゲル状ポリ
マーの成形体30を装着したワイヤハーネス(W/H)
を、上記実施形態と同様に、ゲル状ポリマーの成形体3
0の装着部が円筒部100B内に位置するようにグロメ
ット100に挿通する。このようにすると、上記実施形
態と同様に、ゲル状ポリマーの成形体30は円筒部10
0Bの弾性力(締め付け力)を受けて変形し、円筒部1
00B内は電線wl、w2、w3とゲル状ポリマーで埋
め尽くされ、グロメット100内は止水状態となる。
FIG. 5 shows another embodiment. That is, in the present embodiment, instead of using the strip-shaped molded body 20 of the gel-like polymer, three arc-shaped recesses 3 formed at substantially equal intervals on the outer periphery are formed using a gel-like polymer.
Block-shaped molded body 30 provided with 0a, 30b, 30c
Using FIG. (A), three concave portions 30 of the molded body 30 are used.
After fitting the three electric wires wl, w2, and w3 into a, 30b, and 30c, the three electric wires wl, w2, and w3 are bound by a tape T (FIG. (B)). Then, a wire harness (W / H) to which the molded body 30 of the gel polymer is attached.
To the molded article 3 of the gel polymer in the same manner as in the above embodiment.
The grommet 100 is inserted so that the No. 0 mounting portion is located in the cylindrical portion 100B. In this manner, similarly to the above embodiment, the gel polymer molded body 30 becomes the cylindrical portion 10.
Deformed by the elastic force (clamping force) of
The inside of 00B is filled with the electric wires wl, w2, w3 and the gel polymer, and the inside of the grommet 100 is stopped.
【0020】なお、ゲル状ポリマーの成形体の形状は上
記に限らず、変形時にグロメットの円筒部内の隙間を埋
め尽くすことができるのであれば、上記以外の形状のも
のをもちいてもよいことは言うまでもない。
The shape of the gel polymer molded body is not limited to the above, and any shape other than the above may be used as long as the gap in the cylindrical portion of the grommet can be completely filled at the time of deformation. Needless to say.
【0021】[0021]
【発明の効果】以上の説明より明らかなように、本発明
によれば、ワイヤハーネスを構成する複数の電線を束ね
て一度にグロメットの円筒部に挿通するだけの簡単な作
業により、ワイヤハーネスにグロメットを止水状態で取
り付けることができる。よって、従来に比して作業工数
を大きく削減でき、しかも、作業の繁雑さを解消するこ
とができる。また、グロメット全体を小径化できるので
ワイヤハーネスを挿通して配索するための車両の隔壁
(鋼板パネル) に形成する貫通穴を小さくでき、止水性
により好ましい構造とすることができる。
As is clear from the above description, according to the present invention, the wire harness can be connected to the wire harness by a simple operation of bundling a plurality of wires constituting the wire harness and inserting the wires into the grommet cylindrical portion at once. The grommet can be installed in a watertight state. Therefore, the number of work steps can be greatly reduced as compared with the related art, and the complexity of work can be eliminated. Also, since the diameter of the entire grommet can be reduced, the partition wall of the vehicle for inserting and arranging the wire harness
The through hole formed in the (steel plate panel) can be made smaller, and a more preferable structure can be obtained due to the water blocking property.
【図面の簡単な説明】[Brief description of the drawings]
【図1】 実施形態におけるゲル状ポリマーの成形体を
装着したワイヤハーネスの斜視図である。
FIG. 1 is a perspective view of a wire harness equipped with a gel polymer molded body according to an embodiment.
【図2】 図1のゲル状ポリマーの短冊状成形体を巻き
付け部分の断面図である。
FIG. 2 is a cross-sectional view of a portion around which a strip shaped body of the gel polymer of FIG. 1 is wound.
【図3】 実施形態におけるグロメットの斜視図(図
A)と断面図(図B)である。
FIG. 3 is a perspective view (FIG. A) and a cross-sectional view (FIG. B) of the grommet in the embodiment.
【図4】 図1のワイヤハーネスへの図3のグロメット
の取り付け工程図である。
FIG. 4 is a process diagram of attaching the grommet of FIG. 3 to the wire harness of FIG. 1;
【図5】 他の実施形態におけるゲル状ポリマーの成形
体の平面図(図A)と、該ゲル状ポリマーの成形体のワ
イヤハーネスへの装着状態を示した平面図(図B)であ
る。
FIG. 5 is a plan view (FIG. A) of a molded article of a gel polymer in another embodiment, and a plan view (FIG. B) showing a state in which the molded article of the gel polymer is attached to a wire harness.
【図6】 従来のワイヤハーネスへのグロメットの取り
付け状態を示す斜視図である。
FIG. 6 is a perspective view showing a state where a grommet is attached to a conventional wire harness.
【符号の説明】[Explanation of symbols]
w1、w2、w3 電線 W/H ワイヤハーネス T 粘着テープ 2 コルゲートチューブ 11 溝 20 ゲル状ポリマーの短冊状成形体 100A 円板部 100B 先細りの円筒部 100a 周壁部 w1, w2, w3 Electric wire W / H Wire harness T Adhesive tape 2 Corrugated tube 11 Groove 20 Strip shaped body of gel polymer 100A Disk portion 100B Tapered cylindrical portion 100a Peripheral wall portion

Claims (3)

    【特許請求の範囲】[Claims]
  1. 【請求項1】 ゴムまたはエラストマーからなり、周縁
    に車体パネル貫通穴への取付け部を形成した円板部と、
    該円板部の略中央より先細りに突出させた円筒部とを備
    えたグロメットを用い、比較的太径の電線を束ねたワイ
    ヤハーネスをグロメットの円板部側から円筒部へと挿通
    して、ワイヤハーネスの所定部を円筒部がその弾性によ
    り締め付け保持しているグロメットのワイヤハーネスへ
    の取付け構造であって、 上記ワイヤハーネスの先細りの円筒部で保持される部分
    の電線の周囲にはゲル状ポリマーを配置しており、該ゲ
    ル状ポリマーを先細りの円筒部の弾性力で変形させて電
    線間及び電線と円筒部内面間の隙間に充填していること
    を特徴とするグロメットのワイヤハーネスへの取付け構
    造。
    1. A disk portion made of rubber or elastomer and having a peripheral portion formed with a mounting portion to a vehicle body panel through hole,
    Using a grommet provided with a cylindrical portion that is tapered from the approximate center of the disk portion, insert a wire harness that bundles relatively large-diameter electric wires from the disk portion side of the grommet into the cylindrical portion, A mounting structure of a grommet to a wire harness in which a predetermined portion of the wire harness is tightened and held by a cylindrical portion by its elasticity, wherein a gel-like portion is formed around an electric wire at a portion held by the tapered cylindrical portion of the wire harness. A polymer is disposed, and the gel-like polymer is deformed by the elastic force of the tapered cylindrical portion to fill the gap between the electric wires and the gap between the electric wire and the inner surface of the cylindrical portion. Mounting structure.
  2. 【請求項2】 上記ゲル状ポリマーは短冊状の成形体で
    あり、該短冊状成形体を電線束の各電線の外周を包囲す
    るように電線束に巻き付けている請求項1に記載のグロ
    メットのワイヤハーネスへの取付け構造。
    2. The grommet according to claim 1, wherein the gel-like polymer is a strip-shaped molded body, and the strip-shaped molded body is wound around the wire bundle so as to surround the outer periphery of each wire of the wire bundle. Mounting structure to wire harness.
  3. 【請求項3】 上記ゲル状ポリマーはその外周に略等間
    隔に複数の凹部を設けたブロック状の成形体であり、該
    ブロック状成形体の複数の凹部に各一本の電線を嵌め入
    れている請求項1に記載のグロメットのワイヤハーネス
    への取付け構造。
    3. The gel-like polymer is a block-shaped molded body having a plurality of concave portions provided at substantially equal intervals on an outer periphery thereof, and one electric wire is fitted into each of the plurality of concave portions of the block-shaped molded body. The structure for attaching the grommet according to claim 1 to a wire harness.
JP33746797A 1997-12-08 1997-12-08 Grommet mounting structure to wire harness Expired - Fee Related JP3336936B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP33746797A JP3336936B2 (en) 1997-12-08 1997-12-08 Grommet mounting structure to wire harness

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP33746797A JP3336936B2 (en) 1997-12-08 1997-12-08 Grommet mounting structure to wire harness

Publications (2)

Publication Number Publication Date
JPH11178164A true JPH11178164A (en) 1999-07-02
JP3336936B2 JP3336936B2 (en) 2002-10-21

Family

ID=18308924

Family Applications (1)

Application Number Title Priority Date Filing Date
JP33746797A Expired - Fee Related JP3336936B2 (en) 1997-12-08 1997-12-08 Grommet mounting structure to wire harness

Country Status (1)

Country Link
JP (1) JP3336936B2 (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100743014B1 (en) * 2000-09-18 2007-07-26 가부시키가이샤 고마쓰 세이사쿠쇼 Cabin for construction machine
JP2009291001A (en) * 2008-05-29 2009-12-10 Yazaki Corp Water-stop structure of wire bundle and water-stop method of wire bundle
WO2010070834A1 (en) * 2008-12-19 2010-06-24 本田技研工業株式会社 Vehicle wiring structure
JP2011117574A (en) * 2009-12-07 2011-06-16 Mirai Ind Co Ltd Fireproofing tool and fireproofing structure
US8561296B2 (en) 2008-08-19 2013-10-22 Yazaki Corporation Method for producing wiring harness
CN103366878A (en) * 2013-07-03 2013-10-23 株洲南车时代电气股份有限公司 Water-proof wiring harness and manufacture method thereof
JP2014158347A (en) * 2013-02-15 2014-08-28 Kyocera Corp Grommet
US10790655B2 (en) 2013-07-04 2020-09-29 Sumitomo Wiring Systems, Ltd. Grommet

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106611941A (en) * 2015-10-27 2017-05-03 长城汽车股份有限公司 Wire passing structure for wiring harnesses, vehicle trunk floor structure and vehicle

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100743014B1 (en) * 2000-09-18 2007-07-26 가부시키가이샤 고마쓰 세이사쿠쇼 Cabin for construction machine
JP2009291001A (en) * 2008-05-29 2009-12-10 Yazaki Corp Water-stop structure of wire bundle and water-stop method of wire bundle
US8561296B2 (en) 2008-08-19 2013-10-22 Yazaki Corporation Method for producing wiring harness
WO2010070834A1 (en) * 2008-12-19 2010-06-24 本田技研工業株式会社 Vehicle wiring structure
JP2010143436A (en) * 2008-12-19 2010-07-01 Honda Motor Co Ltd Wiring structure of vehicle
US8444216B2 (en) 2008-12-19 2013-05-21 Honda Motor Co., Ltd. Vehicle wiring structure
JP2011117574A (en) * 2009-12-07 2011-06-16 Mirai Ind Co Ltd Fireproofing tool and fireproofing structure
JP2014158347A (en) * 2013-02-15 2014-08-28 Kyocera Corp Grommet
CN103366878A (en) * 2013-07-03 2013-10-23 株洲南车时代电气股份有限公司 Water-proof wiring harness and manufacture method thereof
US10790655B2 (en) 2013-07-04 2020-09-29 Sumitomo Wiring Systems, Ltd. Grommet

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