JPH06233435A - Grommet water-proof structure - Google Patents
Grommet water-proof structureInfo
- Publication number
- JPH06233435A JPH06233435A JP5036202A JP3620293A JPH06233435A JP H06233435 A JPH06233435 A JP H06233435A JP 5036202 A JP5036202 A JP 5036202A JP 3620293 A JP3620293 A JP 3620293A JP H06233435 A JPH06233435 A JP H06233435A
- Authority
- JP
- Japan
- Prior art keywords
- grommet
- filler
- wire harness
- injecting
- gap
- 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
Links
Landscapes
- Insertion, Bundling And Securing Of Wires For Electric Apparatuses (AREA)
- Insulating Bodies (AREA)
- Installation Of Indoor Wiring (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、グロメットのワイヤー
ハーネス挿通部の防水構造に関し、より詳細には、ワイ
ヤーハーネスをグロメットに挿通し、ワイヤーハーネス
の挿通部に充填材を注入してグロメットを防水構造とす
る場合に、ワイヤーハーネスとグロメットとの間並び
に、ワイヤーハーネスの電線間の隙間にも充分に充填材
を浸透させて完全密封することができるグロメットの防
水構造に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a waterproof structure for a grommet wire harness insertion portion. More specifically, the wire harness is inserted into the grommet, and a filling material is injected into the wire harness insertion portion to waterproof the grommet. The present invention relates to a grommet waterproof structure that allows a filler to sufficiently penetrate into a gap between a wire harness and a grommet and a gap between electric wires of the wire harness to completely seal the structure.
【０００２】[0002]
【従来の技術】例えば、自動車のエンジンルームと車室
間にわたってワイヤーハーネスを配索する場合には、両
室を仕切るダッシュパネルに挿通孔を穿設して、この挿
通孔にグロメットを装着し、グロメットの内部にワイヤ
ーハーネスを挿通することにより配索を行っている。2. Description of the Related Art For example, when wiring a wire harness between an engine room and a vehicle compartment of an automobile, an insertion hole is formed in a dash panel that separates both rooms, and a grommet is attached to the insertion hole. The wiring is done by inserting a wire harness inside the grommet.
【０００３】この時、雨中の走行や洗車によりエンジン
ルームに侵入した水が、電線を伝わって車室側に入り込
み、電線端部のコネクタ部に達するのを防止するため
に、電線とグロメットは、シール材による防水処理が施
される。このような防水処理は、通常、グロメットのワ
イヤーハーネス挿入部に、硬化性を有する液状の充填材
を外部から流し込み、充填材をグロメットとワイヤーハ
ーネスとの間並びに、ワイヤーハーネスの電線間に浸透
させて、充填材の硬化によりこれらの隙間を密封するも
のである。At this time, in order to prevent water that has entered the engine room due to running in the rain or washing the car from traveling along the electric wire and entering the passenger compartment side, and reaching the connector portion at the end of the electric wire, the electric wire and the grommet are Waterproof treatment with sealing material is applied. Such waterproofing is usually performed by pouring a curable liquid filler into the wire harness insertion portion of the grommet from the outside and allowing the filler to penetrate between the grommet and the wire harness and between the wires of the wire harness. Then, the gap is sealed by hardening the filling material.
【０００４】この防水処理のためのグロメット防水構造
の一つに、実公平４−３６１９３号公報に開示された構
造のものがある。このグロメット防水構造は、図８及び
その断面図である図９に示されるように、グロメット本
体１の縮径孔２に、ワイヤーハーネスＷを挿通した後、
ワイヤーハーネスＷの電線３の間に棒状のスペーサ４を
挿入して空間部５を形成し、この状態でグロメット本体
１の内部に液状硬化性の充填材６を注入することによ
り、充填材６が空間部５にも浸透し、充填材６の硬化に
よりグロメット本体１の内部全体を密封するものであ
る。One of the grommet waterproof structures for this waterproof treatment is the structure disclosed in Japanese Utility Model Publication No. 4-36193. As shown in FIG. 8 and FIG. 9 which is a sectional view of the grommet waterproof structure, after inserting the wire harness W into the reduced diameter hole 2 of the grommet main body 1,
The space 6 is formed by inserting the rod-shaped spacer 4 between the electric wires 3 of the wire harness W, and the liquid curable filler 6 is injected into the grommet body 1 in this state, whereby the filler 6 is formed. It penetrates into the space portion 5 and cures the filling material 6 to seal the entire inside of the grommet body 1.
【０００５】また、同公報には、同様のグロメット防水
構造として図１０及び図１１に示されるような構造も開
示されている。これは、図示されるように、円環状部７
に屈曲した脚部８を複数本立設したスペーサ９を、ワイ
ヤーハーネスＷの電線３の間に内挿して電線３の間に空
間部５を形成し、この状態でグロメット本体１の内部に
液状硬化性の充填材６を注入することにより、充填材６
が空間部５にも流入し、充填材６の硬化によりグロメッ
ト本体１の内部全体を密封するものである。Further, the same publication also discloses a structure as shown in FIGS. 10 and 11 as a similar grommet waterproof structure. This is the annular portion 7 as shown.
A spacer 9 in which a plurality of bent leg portions 8 are vertically installed is inserted between the electric wires 3 of the wire harness W to form a space portion 5 between the electric wires 3, and in this state, liquid hardening is performed inside the grommet main body 1. The filling material 6 is injected by injecting the filling material 6.
Also flows into the space 5 and the filling material 6 is cured to seal the entire interior of the grommet body 1.
【０００６】[0006]
【発明が解決しようとする課題】これら従来のグロメッ
ト防水構造では、ワイヤーハーネスＷをグロメット本体
１に挿入した後に、電線３の束を押し拡げて電線３間に
スペーサ４又は９を挿入するための空間部５を強制的に
形成する必要がある。しかし、一度束ねられて、グロメ
ット本体１に挿入されたワイヤーハーネスＷを押し拡げ
るのは困難であり、作業性が悪い。特に、図１０に示さ
れるような円環状のスペーサ９をワイヤーハーネスＷ内
部に挿入するには、電線３間により広い空間部５を形成
する必要があり、スペーサ９の挿入作業が一層困難とな
る。In these conventional grommet waterproof structures, the wire harness W is inserted into the grommet body 1 and then the bundle of electric wires 3 is expanded to insert the spacer 4 or 9 between the electric wires 3. It is necessary to forcibly form the space portion 5. However, it is difficult to push and spread the wire harness W once bundled and inserted into the grommet body 1, and the workability is poor. In particular, in order to insert the annular spacer 9 as shown in FIG. 10 into the wire harness W, it is necessary to form a wider space 5 between the electric wires 3, which makes the insertion work of the spacer 9 more difficult. .
【０００７】また、スペーサ４又は９の挿入作業時に、
電線３を損傷する恐れもある。更に、上記作業性の問題
に加えて、スペーサ４又は９の挿入により空間部５は確
保されるものの、電線３は外側へ押圧されるために、注
入される充填材６は、空間部５には容易に流入するもの
の、電線３と電線３との隙間には浸透し難くなる。この
ため、ワイヤーハーネスＷの断面半径方向に、充填材３
の充填ムラが発生するという構造上の問題もある。Further, when the spacer 4 or 9 is inserted,
The electric wire 3 may be damaged. Further, in addition to the problem of workability described above, although the space portion 5 is secured by the insertion of the spacer 4 or 9, the electric wire 3 is pressed outward, so that the filler 6 to be injected is injected into the space portion 5. Although it easily flows in, it hardly penetrates into the gap between the electric wires 3. Therefore, in the radial direction of the cross section of the wire harness W, the filler 3
There is also a structural problem that uneven filling occurs.
【０００８】本発明の目的は、従来のグロメット防水構
造の問題点である、グロメット本体とワイヤーハーネス
との間及びワイヤーハーネスの電線間の密封性が不充分
である点や、ワイヤーハーネス配索の作業効率が低いと
いう点を改善し、密封効果やワイヤーハーネス配索の作
業性に優れたグロメット防水構造を提供することにあ
る。The object of the present invention is the problem of the conventional grommet waterproof structure, that is, the sealing property between the grommet main body and the wire harness and between the electric wires of the wire harness is insufficient, and the wire harness wiring It is to provide a grommet waterproof structure that improves the work efficiency and improves the sealing effect and workability of wire harness wiring.
【０００９】[0009]
【課題を解決するための手段】上記の課題は、一端を大
開口筒部に、他端を小開口筒部に形成したグロメット本
体にワイヤーハーネスを挿通し、液状硬化性の充填材を
注入してワイヤーハーネスの電線間の隙間及び、小開口
筒部とワイヤーハーネスとの間の隙間をシールするグロ
メット防水構造において、前記グロメット本体の前記小
開口筒部には凸部が形成されているとともに、充填材注
入治具の挿入により押し拡げられる複数の羽根部材を備
える充填材注入用内部部材が電線束の略中心に内挿され
た前記ワイヤーハーネスを、前記充填材注入用内部部材
が前記凸部に内嵌するように前記グロメット本体に挿通
し、前記充填材注入治具を挿入して前記羽根部材を押し
拡げ、前記充填材を注入することにより、前記ワイヤー
ハーネスの電線間の隙間及び、前記小開口筒部と前記ワ
イヤーハーネスとの間の隙間をシールする構造としたこ
とを特徴とするグロメット防水構造により解決される。The above problems are solved by inserting a wire harness into a grommet body having a large opening tube portion at one end and a small opening tube portion at the other end, and injecting a liquid curable filler. In the grommet waterproof structure for sealing the gap between the electric wires of the wire harness and the gap between the small opening tubular portion and the wire harness, a convex portion is formed on the small opening tubular portion of the grommet body, The internal member for injecting a filler is provided with the internal member for injecting a filler, which is provided with a plurality of blade members that are expanded by the insertion of the injecting member for a filler, at the approximate center of the wire bundle. The wire between the wires of the wire harness by inserting the filling material injecting jig into the grommet body so as to fit in the inside of the wire harness, expanding the blade member, and injecting the filling material. Gap and said solved by grommet waterproof structure, characterized in that it has a structure for sealing a gap between the small aperture tube portion and the wire harness.
【００１０】これにより、密封効果及びワイヤーハーネ
ス配索の作業性に優れたグロメット防水構造を提供する
ことができる。As a result, it is possible to provide the grommet waterproof structure which is excellent in the sealing effect and the workability of wiring the wire harness.
【００１１】[0011]
【実施例】以下、添付の図面を参照して、本発明に係る
グロメットの防水構造をより詳細に説明する。但し、本
発明に係るグロメットの防水構造は、本実施例に限るも
のではなく、種々の変更が可能である。図２に示される
ように、グロメット本体１は、一端が大開口筒部１０、
他端がワイヤーハーネスＷが挿通し得る程度の内径を有
する小開口筒部１１からなり、大開口筒部１０と小開口
筒部１１が弾性を有する筒状部材１２により一体的に連
結された構造となっている。また、小開口筒部１１に
は、ワイヤーハーネスＷに内挿され、後述される構造を
有する充填材注入用内部部材（図示せず）を内嵌させる
ための凸部１３が形成されている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A waterproof structure for a grommet according to the present invention will be described in more detail below with reference to the accompanying drawings. However, the waterproof structure of the grommet according to the present invention is not limited to this embodiment, and various modifications can be made. As shown in FIG. 2, the grommet body 1 has a large opening cylinder portion 10 at one end,
A structure in which the other end includes a small opening tubular portion 11 having an inner diameter that allows the wire harness W to be inserted therein, and the large opening tubular portion 10 and the small opening tubular portion 11 are integrally connected by a tubular member 12 having elasticity. Has become. Further, the small opening tubular portion 11 is formed with a convex portion 13 which is inserted into the wire harness W and into which a filling material injecting internal member (not shown) having a structure described later is fitted.
【００１２】本発明は、このような構造のグロメット本
体１を用いた防水構造に関するものである。以下に、防
水方法について説明する。充填材の注入は、図３に図示
される構造の充填材注入用内部部材１４を用いて行われ
る。この充填材注入用内部部材１４は、円筒部１５から
放射状に延びる複数の羽根部材１６から構成され、可撓
性を有する材料例えば樹脂により一体に形成される。こ
こで、羽根部材１６の羽根の長さは、グロメット本体１
に挿入されるワイヤーハーネスＷの電線３の束の半径よ
りも大きく、且つグロメット本体１の小開口筒部１１に
形成された凸部１３の内径よりも小さくなるように設定
される。The present invention relates to a waterproof structure using the grommet body 1 having such a structure. The waterproof method will be described below. The filler is injected by using the filler injecting internal member 14 having the structure shown in FIG. The filling material injecting internal member 14 is composed of a plurality of blade members 16 radially extending from the cylindrical portion 15, and is integrally formed of a flexible material such as resin. Here, the length of the blade of the blade member 16 is the grommet main body 1
It is set so as to be larger than the radius of the bundle of electric wires 3 of the wire harness W to be inserted into and to be smaller than the inner diameter of the convex portion 13 formed in the small opening tubular portion 11 of the grommet body 1.
【００１３】更に、羽根部材１６は、円筒部１５から延
びて頂部１７で連結する一対の板材１６ａ及び１６ｂか
ら構成されるとともに、円筒部１５の中空部１８に後述
される充填材注入治具（図示せず）が挿入されて、円筒
部１５が外方に押し拡げられた時に、板材１６ａ及び１
６ｂ間の間隔が広がる構造となっている。上記の構造の
充填材注入用内部部材１４を、図４に示されるように、
ワイヤーハーネスＷの組立時に電線３の束の略中心に挿
入する。この時、充填材注入用内部部材１４は、その羽
根部材１６の先端側の一部がワイヤーハーネスＷの外部
に突出した状態となる。Further, the blade member 16 is composed of a pair of plate members 16a and 16b extending from the cylindrical portion 15 and connected at the top portion 17, and a filling material injection jig (described later) is provided in the hollow portion 18 of the cylindrical portion 15. (Not shown) is inserted, and when the cylindrical portion 15 is pushed outward, the plate members 16a and 16a
The structure is such that the interval between 6b is widened. As shown in FIG. 4, the internal member 14 for injecting the filler having the above structure is
When the wire harness W is assembled, the wire harness W is inserted into the bundle of wires 3 substantially at the center. At this time, the filler injecting internal member 14 is in a state in which a part of the tip end side of the blade member 16 projects to the outside of the wire harness W.
【００１４】この充填材注入用内部部材１４が内挿され
たワイヤーハーネスＷを、図１に示されるように、ワイ
ヤーハーネスＷがグロメット本体１の小開口筒部１１に
内嵌されるとともに、充填材注入用内部部材１４の羽根
部材１６がグロメット本体１の凸部１３に内嵌されるよ
うに挿通する。充填材の注入は、先ず、ワイヤーハーネ
スＷを構成する電線３の大開口筒部１０から露出する部
分を、所謂ばらした状態とした後、充填材注入治具１９
の注入管２０を、大開口筒部１０の開口側（図中右側）
から充填材注入用内部部材１４の中空部１８（図３参
照）に挿入する。As shown in FIG. 1, the wire harness W into which the filling material injecting internal member 14 is inserted is fitted into the small opening cylindrical portion 11 of the grommet body 1 and is filled. The blade member 16 of the internal member 14 for material injection is inserted so as to be fitted into the convex portion 13 of the grommet main body 1. To inject the filler, first, the portion of the electric wire 3 forming the wire harness W exposed from the large opening cylindrical portion 10 is made into a so-called separated state, and then the filler injection jig 19 is used.
The injection pipe 20 of the opening side of the large opening tube portion 10 (right side in the figure)
To the hollow portion 18 (see FIG. 3) of the filling material injecting internal member 14.
【００１５】この充填材注入治具１９は、所謂注射器型
であり、注入管２０は、図５（ａ）に示されるように、
充填材注入用内部部材１４の中空部１８の直径よりも大
きな径を有する管部２１と、管部２１に連続する狭窄部
２２とから構成されるとともに、管部２１の管壁及び狭
窄部２２の先端には、充填材流出孔２３が穿設されてい
る。This filling material injection jig 19 is of a so-called syringe type, and the injection pipe 20 is, as shown in FIG.
The filling member injecting inner member 14 includes a tube portion 21 having a diameter larger than the diameter of the hollow portion 18 and a narrowed portion 22 continuous with the pipe portion 21, and a pipe wall and a narrowed portion 22 of the pipe portion 21. A filler outflow hole 23 is formed at the tip of the.
【００１６】また、図５（ｂ）に示されるように、注入
管２０を、狭窄部２２に充填材注入用内部部材１４の羽
根部材１６の数及び配設位置に対応する翼片２４を立設
した構造とすることにより、充填材注入治具１４の挿入
時、この翼片２４を羽根部材１６の板材１６ａと１６ｂ
との間に挿入して、板材１６ａと１６ｂとの間を均等に
押し拡げることもできる。尚、翼片２４は、狭窄部２２
に限らず、筒部２１に設けることもできる。Further, as shown in FIG. 5 (b), the injection pipe 20 and the blades 24 corresponding to the number and arrangement position of the blade members 16 of the filler injection internal member 14 are erected in the narrowed portion 22. With this structure, the blade pieces 24 are inserted into the plate members 16a and 16b of the blade member 16 when the filler injection jig 14 is inserted.
It is also possible to insert between the plate members 16a and 16b to spread evenly. In addition, the wing piece 24 includes the narrowed portion 22.
However, it is not limited to this and can be provided in the tubular portion 21.
【００１７】この充填材注入治具１９の注入管２０の挿
入により、充填材注入用内部部材１４は、図６（図１の
ＡＡ’断面図）に示されるように、その中空部１８が押
し拡げられるとともに、羽根部材１６を構成する板材１
６ａ及び１６ｂが閉じた状態（同図（ａ））から、板材
１６ａと１６ｂとが離間した状態（同図（ｂ））とな
り、同時に、電線３も凸部１３の内壁方向に押圧され
て、電線３間の隙間も拡大される。By inserting the filling pipe 20 of the filling material filling jig 19, the hollow portion 18 of the filling material filling internal member 14 is pushed as shown in FIG. 6 (AA 'sectional view of FIG. 1). A plate member 1 which is expanded and constitutes the blade member 16.
From the state in which 6a and 16b are closed ((a) in the figure), the plate materials 16a and 16b are separated ((b) in the figure), and at the same time, the electric wire 3 is also pressed in the direction of the inner wall of the convex portion 13, The gap between the electric wires 3 is also enlarged.
【００１８】このように、充填材注入用内部部材１４の
中空部１８、羽根部材１６及び電線３間が押し拡げられ
た状態で充填材を注入することにより、注入された充填
材が注入管２０の充填材流出孔２３から流出し、ワイヤ
ーハーネスＷとグロメット本体１の凸部１３との間及
び、電線３と電線３との間に隙間なく浸透する。充填材
の注入後、充填材注入治具１９を充填材注入用内部部材
１４から抜き取ることにより、充填材注入用内部部材１
４の中空部１８及び羽根部材１６は、挿入前の状態即
ち、羽根部材１６を構成する板材１６ａ及び１６ｂが閉
じた状態へと自動的に戻る。In this way, by injecting the filler with the hollow portion 18 of the inner member 14 for injecting the filler, the blade member 16 and the electric wire 3 being expanded, the injected filler is injected into the injection pipe 20. Out of the filler outflow hole 23, and penetrates between the wire harness W and the convex portion 13 of the grommet body 1 and between the electric wires 3 without any gap. After injecting the filler, the filler injecting jig 19 is pulled out from the filler injecting internal member 14 to obtain the filler injecting internal member 1.
The hollow portion 18 of 4 and the blade member 16 automatically return to the state before insertion, that is, the state in which the plate members 16a and 16b forming the blade member 16 are closed.
【００１９】以上により、グロメットの防水構造が完成
される。尚、本発明に係るグロメットの防水構造のため
に用いられる充填材注入用内部部材１４は種々の形状を
採ることが可能であり、例えば図７に示されるように、
グロメット本体１の凸部１３の大小や、挿通するワイヤ
ーハーネスＷを構成する電線３の束の径の大小に応じ
て、羽根部材１６の数を増減して、その開閉を容易にす
ることができる。それらが大径の場合（同図（ａ））に
は、羽根部材１６の数を多くし、反対に小径の場合（同
図（ｂ））には、その数を少なくすることにより、羽根
部材１６の開閉を容易にすることもできる。この場合、
充填材注入治具１９の注入管２０の翼片２４も、対応さ
せて設けられる。With the above, the waterproof structure of the grommet is completed. The filling material injecting internal member 14 used for the waterproof structure of the grommet according to the present invention can take various shapes. For example, as shown in FIG.
Depending on the size of the convex portion 13 of the grommet main body 1 and the size of the bundle of the electric wires 3 forming the wire harness W to be inserted, the number of the blade members 16 can be increased or decreased to facilitate opening and closing thereof. . When they have a large diameter ((a) in the figure), the number of blade members 16 is increased, and when they have a small diameter ((b) in the figure), the number is reduced to reduce the blade members. It is also possible to easily open and close 16. in this case,
The blade 24 of the injection pipe 20 of the filler injection jig 19 is also provided correspondingly.
【００２０】[0020]
【発明の効果】このようなグロメット防水構造により、
充填材を、グロメット本体とワイヤーハーネスとの間及
びワイヤーハーネスの電線間に、均一に且つ隙間無く浸
透、充填することができ、充填材の硬化に伴うシール性
を格段に向上させて、ワイヤーハーネス挿通部の密封を
確実なものにすることができる。[Effects of the Invention] With such a grommet waterproof structure,
The filler can be infiltrated and filled uniformly between the grommet body and the wire harness and between the wires of the wire harness without any gap, and the sealability associated with the curing of the filler can be significantly improved, and the wire harness The insertion portion can be reliably sealed.
【００２１】また、充填材注入用内部部材が予めワイヤ
ーハーネスに内挿された状態で、充填材を注入するた
め、従来のような充填材の注入時のスペーサ挿入による
電線の損傷の恐れもない。更に、充填材注入用内部部材
が、ワイヤーハーネスを構成する電線の電線ズレを防止
するため、配索作業をより容易にする。Further, since the filler is injected while the filler injecting internal member is inserted in the wire harness in advance, there is no fear of damage to the electric wire due to the spacer insertion at the time of injecting the filler as in the conventional case. . Furthermore, since the filling material injecting internal member prevents the wires of the wires forming the wire harness from being displaced, the wiring work is facilitated.
【図１】 本発明に係るグロメット防水構造の一例を示
す図である。FIG. 1 is a diagram showing an example of a grommet waterproof structure according to the present invention.
【図２】 図１に示されるグロメット防水構造に用いら
れるグロメット本体の断面図である。FIG. 2 is a cross-sectional view of a grommet body used in the grommet waterproof structure shown in FIG.
【図３】 図１に示されるグロメット防水構造に用いら
れる充填材注入用内部部材の斜視図である。FIG. 3 is a perspective view of an internal member for injecting a filler used in the grommet waterproof structure shown in FIG.
【図４】 充填材注入用内部部材をワイヤーハーネスに
内挿した状態を示す図である。FIG. 4 is a view showing a state in which a filling material injecting internal member is inserted into a wire harness.
【図５】 図１に示されるグロメット防水構造に用いら
れる充填材注入治具の注入管の好適な例を示す斜視図で
あり、同図（ａ）は翼片無し、同図（ｂ）は翼片を付設
したものである。FIG. 5 is a perspective view showing a preferred example of an injection pipe of a filler injection jig used in the grommet waterproof structure shown in FIG. 1, where FIG. 5 (a) is without wings and FIG. It has winglets attached.
【図６】 図１に示されるグロメット防水構造における
グロメット本体ＡＡ’断面図であり、同図（ａ）は充填
材注入治具挿入前の状態、同図（ｂ）は充填材注入治具
挿入時の状態を示す図である。6 is a cross-sectional view of the grommet main body AA ′ in the grommet waterproof structure shown in FIG. 1, where FIG. 6 (a) is a state before insertion of the filler injection jig, and FIG. 6 (b) is insertion of the filler injection jig. It is a figure which shows the state at the time.
【図７】 本発明に係るグロメット防水構造に用いられ
る充填材注入用内部部材とグロメット本体の大小との関
係を説明するための図であり、同図（ａ）はグロメット
本体が大径の場合、同図（ｂ）はグロメット本体が小径
の場合の示す図である。FIG. 7 is a view for explaining the relationship between the filling member injecting internal member used in the grommet waterproof structure according to the present invention and the size of the grommet body, and FIG. 7 (a) shows the case where the grommet body has a large diameter. The same figure (b) is a diagram showing the case where the grommet body has a small diameter.
【図８】 従来のグロメット防水構造を示す斜視図であ
る。FIG. 8 is a perspective view showing a conventional grommet waterproof structure.
【図９】 図８の断面図である。9 is a cross-sectional view of FIG.
【図１０】 従来の他のグロメット防水構造に使用され
るスペーサを示す斜視図である。FIG. 10 is a perspective view showing a spacer used in another conventional grommet waterproof structure.
【図１１】 図１０のスペーサを用いたグロメット防水
構造を示す断面図である。11 is a sectional view showing a grommet waterproof structure using the spacer of FIG.
１ グロメット本体 ２ 縮径孔 ３ 電線 ４ スペーサ ５ 空間部 ６ 充填材 ７ 円環状部 ８ 脚部 ９ スペーサ １０ 大開口筒部 １１ 小開口筒部 １２ 筒状部材 １３ 凸部 １４ 充填材注入用内部部材 １５ 円筒部 １６ 羽根部材 １７ 頂部 １７ａ、１７ｂ 板材 １８ 中空部 １９ 充填材注入治具 ２０ 注入管 ２１ 筒部 ２２ 狭窄部 ２３ 充填材流出孔 ２４ 翼片 Ｗ ワイヤーハーネス DESCRIPTION OF SYMBOLS 1 Grommet main body 2 Reduced diameter hole 3 Electric wire 4 Spacer 5 Space part 6 Filling material 7 Annular part 8 Leg part 9 Spacer 10 Large opening cylinder part 11 Small opening cylinder part 12 Cylindrical member 13 Convex part 14 Internal member for filling material injection 15 Cylindrical part 16 Blade member 17 Top part 17a, 17b Plate material 18 Hollow part 19 Filling material injection jig 20 Injection pipe 21 Tube part 22 Constriction part 23 Filling material outflow hole 24 Wing piece W Wire harness
Claims (1)
に形成したグロメット本体にワイヤーハーネスを挿通
し、液状硬化性の充填材を注入してワイヤーハーネスの
電線間の隙間及び、小開口筒部とワイヤーハーネスとの
間の隙間をシールするグロメット防水構造において、前
記グロメット本体の前記小開口筒部には凸部が形成され
ているとともに、充填材注入治具の挿入により押し拡げ
られる複数の羽根部材を備える充填材注入用内部部材が
電線束の略中心に内挿された前記ワイヤーハーネスを、
前記充填材注入用内部部材が前記凸部に内嵌するように
前記グロメット本体に挿通し、前記充填材注入治具を挿
入して前記羽根部材を押し拡げ、前記充填材を注入する
ことにより、前記ワイヤーハーネスの電線間の隙間及
び、前記小開口筒部と前記ワイヤーハーネスとの間の隙
間をシールする構造としたことを特徴とするグロメット
防水構造。1. A wire harness is inserted through a grommet body having a large opening cylinder portion at one end and a small opening cylinder portion at the other end, and a liquid curable filling material is injected to form a gap between electric wires of the wire harness. In the grommet waterproof structure that seals the gap between the small opening cylinder and the wire harness, a protrusion is formed on the small opening cylinder of the grommet main body, and the grommet main body is pushed by inserting a filler injection jig. The wiring harness inner member for injecting a filler having a plurality of blade members to be expanded is inserted substantially in the center of the wire bundle,
By inserting the filler injecting internal member through the grommet main body so as to be fitted into the convex portion, inserting the filler injecting jig to expand the blade member, and injecting the filler, A grommet waterproof structure having a structure for sealing a gap between electric wires of the wire harness and a gap between the small opening tubular portion and the wire harness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5036202A JP2787794B2 (en) | 1993-02-02 | 1993-02-02 | Grommet waterproof structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5036202A JP2787794B2 (en) | 1993-02-02 | 1993-02-02 | Grommet waterproof structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06233435A true JPH06233435A (en) | 1994-08-19 |
| JP2787794B2 JP2787794B2 (en) | 1998-08-20 |
Family
ID=12463159
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5036202A Expired - Lifetime JP2787794B2 (en) | 1993-02-02 | 1993-02-02 | Grommet waterproof structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2787794B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5620711A (en) * | 1994-11-04 | 1997-04-15 | Yazaki Corporation | Mold for forming a waterproof cable |
| US5856635A (en) * | 1995-03-09 | 1999-01-05 | Inoac Corporation | Grommet |
| JP2010136484A (en) * | 2008-12-02 | 2010-06-17 | Yazaki Corp | Water stop method for wire material |
| JP2014158347A (en) * | 2013-02-15 | 2014-08-28 | Kyocera Corp | Grommet |
| WO2014173491A3 (en) * | 2013-04-23 | 2015-01-08 | Leoni Bordnetz-Systeme Gmbh | Cable set, separator and method for producing a cable set |
-
1993
- 1993-02-02 JP JP5036202A patent/JP2787794B2/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5620711A (en) * | 1994-11-04 | 1997-04-15 | Yazaki Corporation | Mold for forming a waterproof cable |
| US5856635A (en) * | 1995-03-09 | 1999-01-05 | Inoac Corporation | Grommet |
| JP2010136484A (en) * | 2008-12-02 | 2010-06-17 | Yazaki Corp | Water stop method for wire material |
| JP2014158347A (en) * | 2013-02-15 | 2014-08-28 | Kyocera Corp | Grommet |
| WO2014173491A3 (en) * | 2013-04-23 | 2015-01-08 | Leoni Bordnetz-Systeme Gmbh | Cable set, separator and method for producing a cable set |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2787794B2 (en) | 1998-08-20 |
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