JPH09106723A - Grommet and mounting structure thereof - Google Patents

Grommet and mounting structure thereof

Info

Publication number
JPH09106723A
JPH09106723A JP7261533A JP26153395A JPH09106723A JP H09106723 A JPH09106723 A JP H09106723A JP 7261533 A JP7261533 A JP 7261533A JP 26153395 A JP26153395 A JP 26153395A JP H09106723 A JPH09106723 A JP H09106723A
Authority
JP
Japan
Prior art keywords
grommet
tubular portion
lip
diameter
folded
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.)
Withdrawn
Application number
JP7261533A
Other languages
Japanese (ja)
Inventor
Kenichi Uchiyama
賢一 内山
Kazuhiro Uemura
和弘 植村
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sumitomo Wiring Systems Ltd
Original Assignee
Sumitomo Wiring Systems Ltd
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 Systems Ltd filed Critical Sumitomo Wiring Systems Ltd
Priority to JP7261533A priority Critical patent/JPH09106723A/en
Publication of JPH09106723A publication Critical patent/JPH09106723A/en
Withdrawn legal-status Critical Current

Links

Landscapes

  • Insulating Bodies (AREA)
  • Installation Of Indoor Wiring (AREA)

Abstract

PROBLEM TO BE SOLVED: To enable a grommet to be mounted on a vehicle body panel with one touch by providing first and second lip parts on a folding back part inner face at the tip end of a cone shaped cylinder part succeeding a small cylinder part passing a wire harness and integrally molding them with rubber, etc. SOLUTION: A grommet 11 attached on a wire harness W/H is pushed into a bar ring 10c protruded to the engine room side of a vehicle body panel 10. The front end of a folding back part 14 hits a flange part 10d and is pushed outward, and a cone shaped cylinder part 13 is diagonally expanded. The inner end of the folding back part 14 excesses the end face of the flange part 10d, the cylinder part 13 is diagonally reduced, a first lip part 15 is pushed into contact with an end face 10e of the flange, and a second lip part 16 at its tip end is pressurized into contact with and locked at the outer peripheral face of the bar ring 10c. Consequently, the grommet 11 can be mounted on the panel 10 with one touch through unidirectional push-in work, and its cost can be reduced because of its one-piece structure.

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、車体パネルの貫通
穴に、ワイヤハーネスを挿通した状態で取り付けるグロ
メットおよび該グロメットの車体への取付構造に関し、
特に、グロメットの取り付け作業性を改善できるように
するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a grommet to be attached with a wire harness inserted in a through hole of a vehicle body panel and a structure for attaching the grommet to a vehicle body.
In particular, it is intended to improve the workability of attaching the grommet.

【0002】[0002]

【従来の技術】自動車用ワイヤハーネスでは、図6に示
すように、車体パネル(例えば、エンジンルームAと車
室Bとを仕切るダッシュパネル)1の貫通穴1aを貫通
させてワイヤハーネスW/Hを配索する場合、ゴム製の
グロメット2の小径筒部2aにワイヤハーネスW/Hを
密着させた状態で挿通させ、この状態で、グロメット2
をエンジンルームA側から車室B側に向けて貫通穴1a
に挿入し、大径部2bの外周に設けた係止凹部2cを貫
通穴1aの内周縁に係止させることにより、グロメット
2を車体パネル1の貫通穴1aに取り付けている。
2. Description of the Related Art In a vehicle wire harness, as shown in FIG. 6, a wire harness W / H is formed by passing through a through hole 1a of a vehicle body panel (for example, a dash panel that separates an engine room A and a vehicle room B). When the wire harness W / H is closely attached to the small-diameter cylindrical portion 2a of the rubber grommet 2, the grommet 2 is inserted in this state.
Through the through hole 1a from the engine room A side to the vehicle compartment B side
The grommet 2 is attached to the through hole 1a of the vehicle body panel 1 by inserting the locking recess 2c provided on the outer periphery of the large diameter portion 2b into the inner peripheral edge of the through hole 1a.

【0003】[0003]

【発明が解決しようとする課題】しかしながら、グロメ
ット2の大径部2bを貫通穴1aに挿入するとき、係止
凹部2cの寸法L1を車体パネル1の板厚L2より小さ
くして係止時に車体パネルに密着させるようにしている
ため、エンジンルームA側から車室B側への挿入だけで
は係止凹部2cを車体パネル1に係止できず、よって、
大径部2bの全体を一旦車室B内に押し込んだ後に、エ
ンジンルームA側へ引き戻して、係止凹部2cに車体パ
ネル1の貫通穴1aに係止させている。
However, when the large diameter portion 2b of the grommet 2 is inserted into the through hole 1a, the dimension L1 of the locking recess 2c is made smaller than the plate thickness L2 of the vehicle body panel 1 to lock the vehicle body. Since it is closely attached to the panel, the locking recess 2c cannot be locked to the vehicle body panel 1 only by inserting from the engine room A side to the vehicle room B side.
The entire large diameter portion 2b is once pushed into the vehicle compartment B and then pulled back to the engine room A side so that the locking recess 2c is locked in the through hole 1a of the vehicle body panel 1.

【0004】図7に示すように、車体パネル1の貫通穴
1aの周縁にバーリング1bが突設されている場合も同
様で、バーリング1bの寸法L3よりグロメット2の係
止凹部2cの寸法L1を小さくしているため、グロメッ
ト2の大径部2bを一旦車室B側に押し込んだ後に、エ
ンジンルームA側に引き戻して、係止凹部2cをバーリ
ング1bに係止している。
As shown in FIG. 7, the same applies to the case where the burring 1b is provided on the periphery of the through hole 1a of the vehicle body panel 1, and the dimension L1 of the locking recess 2c of the grommet 2 is set to be smaller than the dimension L3 of the burring 1b. Since the grommet 2 is made small, the large diameter portion 2b of the grommet 2 is once pushed into the vehicle compartment B side and then pulled back to the engine room A side to lock the locking recess 2c to the burring 1b.

【0005】上記のように、グロメット2を車体1に取
り付ける時、グロメット2を車体B側に押し込んだ後
に、エンジンルームA側に引き戻す往復作業が必要とな
り、取り付け作業性が悪いという問題がある。また、グ
ロメット2の大径部2bを貫通穴1aを通して押し込む
作業は、大径部2bを斜めにしてこじりながら押し込む
必要があり、挿入力を要すると共に、押し込むにくい問
題がある。さらに、車室B側に干渉部材が存在する場
合、大径部2bの全体を押し込むと、グロメット2に通
したワイヤハーネスW/Hが干渉部材に当たる場合もあ
る。
As described above, when attaching the grommet 2 to the vehicle body 1, it is necessary to push the grommet 2 toward the vehicle body B side and then reciprocate the engine room A side. Further, in the work of pushing the large diameter portion 2b of the grommet 2 through the through hole 1a, it is necessary to push the large diameter portion 2b while slanting the large diameter portion 2b, which requires an inserting force and there is a problem that the pushing is difficult. Further, when the interference member exists on the vehicle interior B side, when the entire large diameter portion 2b is pushed in, the wire harness W / H passed through the grommet 2 may hit the interference member.

【0006】このため、図8に示すように、グロメット
2の大径部2bに代えて、合成樹脂製の大径部材3を固
定して、この大径部材3の外周に形成した羽根状のロッ
ク部3aを貫通穴1aの内周縁に係止させるものが提供
されている(特開平2−66816号参照)。上記構成
とすると、羽根状のロック部を撓ませて車体パネル1の
貫通穴1aを通した後に、復元させて車体パネル内面側
に係止させるため、グロメット2は押し込むだけで取り
付けることができる。しかしながら、上記構成とする
と、グロメット2と大径部材3の2ピース構造となるの
でコスト高になると共に、ゴム製のグロメット2に樹脂
製の大径部材3を取り付ける作業が必要となり作業手数
がかかる問題がある。
Therefore, as shown in FIG. 8, a large-diameter member 3 made of synthetic resin is fixed in place of the large-diameter portion 2b of the grommet 2, and a blade-like member is formed on the outer periphery of the large-diameter member 3. There is provided one that locks the lock portion 3a to the inner peripheral edge of the through hole 1a (see Japanese Patent Laid-Open No. 2-66816). With the above configuration, the blade-shaped lock portion is bent to pass through the through hole 1a of the vehicle body panel 1 and then restored to be locked to the inner surface of the vehicle body panel. Therefore, the grommet 2 can be attached only by pushing. However, with the above configuration, the two-piece structure of the grommet 2 and the large-diameter member 3 results in a high cost, and the work of attaching the resin-made large-diameter member 3 to the rubber grommet 2 is required, which requires a lot of work. There's a problem.

【0007】本発明は、上記問題を解決するためになさ
れたもので、ゴムまたはエラストマーにより一体成形さ
れ、しかも、車体パネルにグロメットを一方向からの挿
入作業でワンタッチで取り付けることができるようにす
ることを目的としている。
The present invention has been made to solve the above-mentioned problems, and is integrally molded of rubber or elastomer, and further allows a grommet to be attached to a vehicle body panel by one-touch operation by inserting the grommet from one direction. Is intended.

【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、本発明の請求項1で、ゴムまたはエラストマーで一
体成形しており、ワイヤハーネスを挿通する小径筒部
と、該小径筒部の前端に連続して拡径していく円錐状筒
部と、該円錐状筒部の前端より内側に折り返した可撓性
を有する折返部とを備え、上記円錐状筒部と折返部との
連続部の内面側に内方へ突出した環状の第1リップ部を
設けていると共に折返部の先端に膨出させた第2リップ
部を設けていることを特徴とするグロメットを提供して
いる。
In order to solve the above-mentioned problems, according to claim 1 of the present invention, a small-diameter cylindrical portion which is integrally molded of rubber or elastomer, and through which a wire harness is inserted, and a small-diameter cylindrical portion of the small-diameter cylindrical portion. A conical tubular portion that continuously increases in diameter at the front end, and a flexible folding portion that is folded back inward from the front end of the conical tubular portion, and the conical tubular portion and the folding portion are continuous. Provided is a grommet characterized in that an inwardly projecting annular first lip portion is provided on the inner surface side of the portion, and a bulged second lip portion is provided at the tip of the folded portion.

【0009】上記折返部は薄肉として可撓性を持たせて
いる。(請求項2) また、上記小径筒部に連続する円錐状筒部の後側部分は
厚肉とすると共に、第1リップ部を設ける前側部分は薄
肉として、円錐状筒部の前側部分を撓みやすくすること
が好ましい。(請求項3)
The folding portion is thin and has flexibility. (Claim 2) Further, the rear side portion of the conical cylindrical portion which is continuous with the small diameter cylindrical portion is thick, and the front portion where the first lip portion is provided is thin, and the front portion of the conical cylindrical portion is bent. It is preferable to make it easier. (Claim 3)

【0010】また、請求項4で、グロメットを取り付け
る車体パネルの貫通穴にグロメット挿入側に突出するバ
ーリングが設けられていると共に該バーリングの突出端
より外側へ折り返されたフランジ部が設けられている一
方、上記グロメットはゴムまたはエラストマーより一体
成形し、ワイヤハーネスを挿通する小径筒部と、該小径
筒部の前端に連続して拡径していく円錐状筒部と、該円
錐状筒部の前端より内側に折り返した可撓性を有する折
返部とを備え、上記円錐状筒部と折返部との連続部の内
面側に内方へ突出した環状の第1リップ部を設けている
と共に折返部の先端に膨出させた第2リップ部を設けて
おり、上記車体のバーリングに対して、上記グロメット
の折返部および円錐状筒部を撓ませて外嵌させ、バーリ
ングのフランジ部を乗り越えた時に復元する折返部先端
の第2リップ部をバーリング外周面に圧接していると共
に、第1リップ部をフランジ部の端面に圧接しているグ
ロメットの取付構造を提供している。
Further, in the present invention, a bar ring projecting toward the grommet insertion side is provided in a through hole of a vehicle body panel to which the grommet is attached, and a flange portion is provided which is folded back from the projecting end of the burr ring. On the other hand, the grommet is integrally molded from rubber or elastomer, and has a small-diameter tubular portion through which the wire harness is inserted, a conical tubular portion that continuously increases in diameter at the front end of the small-diameter tubular portion, and a conical tubular portion of the conical tubular portion. A flexible fold-back portion that is folded back inward from the front end, and an annular first lip portion that projects inward is provided on the inner surface side of the continuous portion of the conical tubular portion and the fold-back portion and the fold-back portion. A bulged second lip portion is provided at the tip of the burring portion, and the folded portion and the conical tubular portion of the grommet are flexibly fitted onto the burring of the vehicle body, and the burring flange portion is provided. The second lip portion of the fold tip with in pressure contact with the burring outer peripheral surface to restore when overcome, and provides a mounting structure of the grommet which is pressed against the first lip portion to the end surface of the flange portion.

【0011】上記本発明のグロメットでは、グロメット
の円錐状筒部の前端の外向きの折返部を車体パネルの貫
通穴より挿入側に突出したバーリングに押し込んで行く
と、折り返し部がバーリングの先端より突出したフラン
ジ部の端面に接触して容易に外方へたわむ。折返部がフ
ランジ部の端面から外れると、折返部は弾力で復元して
第2リップ部がバーリング部の外周面に圧接して係止さ
れると共に、フランジ部と車体パネル外面との間に折返
部が挟み込まれた状態となり、グロメットを車体パネル
に確実に保持できる。また、同時に、第1リップ部がフ
ランジ部の端面に圧接して係止される。このように、車
体パネルのバーリングに第1リップ部と第2リップ部と
が圧接し、グロメットは車体に確実にシールされた状態
で取り付けられる。また、グロメットは挿入側から押し
込むだけの一方向の挿入操作のみでワンタッチで取付ら
れる。
In the grommet of the present invention described above, when the outward turning portion of the front end of the conical cylindrical portion of the grommet is pushed into the burring protruding toward the insertion side from the through hole of the vehicle body panel, the turning portion is pulled from the tip of the burring. It comes in contact with the end surface of the protruding flange and easily bends outward. When the folded-back portion is disengaged from the end surface of the flange portion, the folded-back portion is elastically restored, the second lip portion is pressed against the outer peripheral surface of the burring portion and locked, and the folded-back portion is folded between the flange portion and the outer surface of the vehicle body panel. The parts are sandwiched and the grommet can be securely held on the vehicle body panel. At the same time, the first lip portion is pressed against the end surface of the flange portion and locked. Thus, the first lip portion and the second lip portion are in pressure contact with the burring of the vehicle body panel, and the grommet is attached to the vehicle body in a surely sealed state. In addition, the grommet can be attached with one touch by simply inserting it in one direction by pushing it in from the insertion side.

【0012】[0012]

【発明の実施の形態】以下、本発明の実施の形態を図面
を参照して詳細に説明する。図1乃至図3は第1実施形
態を示す。図2に示すように、自動車のエンジンルーム
Aと車室Bとを仕切るダッシュパネル10に貫通穴10
aがあけられ、この貫通穴10aには、エンジンルーム
(挿入)A側の外面10bから突出する円筒状のバーリ
ング10cが形成されており、該バーリング10cの突
出端には折り返された形状のフランジ部10dが設けら
れている。
BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. 1 to 3 show a first embodiment. As shown in FIG. 2, a through hole 10 is formed in a dash panel 10 that partitions an engine room A and a vehicle room B of an automobile.
A through hole 10a is formed with a cylindrical burring 10c projecting from the outer surface 10b on the engine room (insertion) A side, and a flange having a folded shape is formed at the projecting end of the burring 10c. A section 10d is provided.

【0013】上記パネル10の貫通穴10aに取り付け
るゴム製のグロメット11は、ワイヤハーネスW/Hを
密着させて挿通する小径筒部12と、該小径筒部12の
前端に連続して拡径していく円錐状筒部13と、該円錐
状筒部13の前端より内側に折り返した可撓性を有する
折返部14とを備えている。
The rubber grommet 11 attached to the through hole 10a of the panel 10 has a small-diameter cylindrical portion 12 into which the wire harness W / H is closely attached and is inserted, and a diameter is continuously expanded at the front end of the small-diameter cylindrical portion 12. The conical tubular portion 13 is provided and a flexible folding portion 14 that is folded inward from the front end of the conical tubular portion 13 is provided.

【0014】上記円錐状筒部13と折返部14との連続
部の内面側に内方へ突出した環状の第1リップ部15を
設けていると共に、折返部14の先端に膨出させた第2
リップ部16を設けている。上記折返部14は他の部分
よりも薄肉として可撓性を持たせ、容易に撓むようにし
ている。
An inwardly projecting annular first lip portion 15 is provided on the inner surface side of the continuous portion of the conical cylindrical portion 13 and the folding portion 14, and the first lip portion which bulges at the tip of the folding portion 14 is provided. Two
A lip portion 16 is provided. The folded-back portion 14 is thinner than the other portions so as to have flexibility so that it can be easily bent.

【0015】上記円錐状筒部13の前部側の最大径の部
分は、車体のフランジ部10dの外径と略同一とし、原
状で上記第1リップ部15がフランジ部10dの端面1
0eに圧接するように設定している。また、該第1リッ
プ部15が端面10eに圧接した位置で、フランジ部1
0dと車体パネル外面10bの間に挿入する折返部14
の先端の第2リップ部16はバーリング10cの外周面
に圧接するように設定している。
The maximum diameter portion of the conical cylindrical portion 13 on the front side is substantially the same as the outer diameter of the flange portion 10d of the vehicle body, and in the original state, the first lip portion 15 has the end surface 1 of the flange portion 10d.
It is set so as to come into pressure contact with 0e. Further, at the position where the first lip portion 15 is in pressure contact with the end surface 10e, the flange portion 1
The folding part 14 inserted between 0d and the outer surface 10b of the vehicle body panel.
The second lip portion 16 at the tip of is set to be in pressure contact with the outer peripheral surface of the burring 10c.

【0016】上記グロメット11に対してワイヤハーネ
スW/Hを小径筒部12を押し広げて挿通し、小径筒部
12の外周面にテープ20を巻き付けてワイヤハーネス
W/Hをグロメット11に固定している。
The wire harness W / H is inserted into the grommet 11 by pushing the small-diameter cylindrical portion 12 wide, and the tape 20 is wound around the outer peripheral surface of the small-diameter cylindrical portion 12 to fix the wire harness W / H to the grommet 11. ing.

【0017】ワイヤハーネスW/Hに取り付けたグロメ
ット11をダッシュパネル10に取り付ける時、図3
(A)のように、エンジンルームA側から挿入してい
く。該挿入により、まず、前部の折返部14の前端がバ
ーリング10cの先端のフランジ部10dと当接して、
図3(B)に示すように、フランジ部10dにより折返
部14が外方へと押され、円錐状筒部13が拡径するよ
うに撓まされる。
When the grommet 11 attached to the wire harness W / H is attached to the dash panel 10, as shown in FIG.
Insert from the engine room A side as shown in (A). By the insertion, first, the front end of the front folded-back portion 14 contacts the flange portion 10d at the tip of the burring 10c,
As shown in FIG. 3B, the folded portion 14 is pushed outward by the flange portion 10d, and the conical cylindrical portion 13 is bent so as to expand its diameter.

【0018】内側に折り返された折返部14の内端がフ
ランジ部10dの端面を越えると、図3(C)に示すよ
うに、円錐状筒部13は原状に復帰して縮径し、第1リ
ップ部15がフランジ部10dの端面10eに圧接す
る。また、折返部14がフランジ部10dとパネル外面
10bとの間に挿入し、その先端の第2リップ部16が
バーリング10cの外周面に圧接係止する。
When the inner end of the folded-back portion 14 folded back inward exceeds the end face of the flange portion 10d, the conical cylindrical portion 13 returns to its original shape and contracts, as shown in FIG. 3 (C). The 1 lip part 15 press-contacts with the end surface 10e of the flange part 10d. Further, the folded-back portion 14 is inserted between the flange portion 10d and the panel outer surface 10b, and the second lip portion 16 at the tip thereof is pressed and locked to the outer peripheral surface of the burring 10c.

【0019】上記のように、グロメット11は、押し込
みの一方向からの作業のみでワンタッチでダッシュパネ
ル10に取り付けることができ、従来のような押し込み
と引き戻しの2方向の往復作業ではないから、取付工程
を簡単にできる。また、グロメット10は、1ピース構
造であり、従来のような2ピース構造ではないから、コ
スト安でもある。
As described above, the grommet 11 can be attached to the dash panel 10 with one touch only by the work from one direction of pushing, and it is not a reciprocating work of two directions of pushing and pulling back as in the past, so the mounting The process can be simplified. Further, the grommet 10 has a one-piece structure, not a two-piece structure as in the related art, so that the cost is low.

【0020】図4は第2実施形態を示し、小径筒部12
に連続する円錐状筒部13の後側部分は厚肉部13aと
すると共に、第1リップ部15の後部位置に薄肉部13
bを設けている。
FIG. 4 shows a second embodiment, in which the small diameter cylindrical portion 12 is provided.
The rear side portion of the conical cylindrical portion 13 that is continuous with is a thick portion 13a, and the thin portion 13 is provided at the rear position of the first lip portion 15.
b is provided.

【0021】上記のように、円錐状筒部13の前部側に
薄肉部13bを設けると、折返部14がフランジ部10
dと当接した時に撓みやすくなる。また、円錐状筒部1
3の後部側に厚肉部13aを設けているため、強度を向
上させることができると共に、押し広げられた後に原状
に復帰する時の復帰力を高め、第1リップ部15と第2
リップ部16とのフランジ部10dおよびバーリング1
0dに対する圧接力を高めることができる。
As described above, when the thin-walled portion 13b is provided on the front side of the conical cylindrical portion 13, the folded-back portion 14 becomes the flange portion 10.
When it comes into contact with d, it easily bends. In addition, the conical tubular portion 1
Since the thick portion 13a is provided on the rear side of the No. 3, the strength can be improved and the restoring force when returning to the original state after being expanded is increased, and the first lip portion 15 and the second lip portion 15
Flange portion 10d with lip portion 16 and burring 1
The pressure contact force with respect to 0d can be increased.

【0022】図5は第3実施形態を示し、グロメット1
1は第1実施形態と同一としているが、パネル10側の
バーリング10cの先端より、上記フランジ部10dに
代えて、湾曲させてパネル外面10b側に屈曲させたカ
ーリング部10iを設けている。
FIG. 5 shows the third embodiment, and the grommet 1
1 is the same as that of the first embodiment, but a curling portion 10i, which is curved and bent toward the panel outer surface 10b side, is provided from the tip of the burring 10c on the panel 10 side, instead of the flange portion 10d.

【0023】上記カーリング部10iがパネル10側に
設けられていると、グロメット11の前部折返部14が
当接した時、カーリング部10iの曲面に沿ってグロメ
ット11がスムーズに押し広げられる。該カーリング部
10iの外方突出端から外れた折返部14はカーリング
部10iとパネル外面10bの間に挿入し、グロメット
11の第1リップ部15がカーリング部10iの後端面
に圧接すると共に、折返部15の先端の第2リップ部1
6はバーリング10cの外周面に圧接する。
When the curling portion 10i is provided on the panel 10 side, the grommet 11 can be smoothly spread along the curved surface of the curling portion 10i when the front folded portion 14 of the grommet 11 comes into contact. The folded-back portion 14 separated from the outwardly projecting end of the curling portion 10i is inserted between the curling portion 10i and the panel outer surface 10b, and the first lip portion 15 of the grommet 11 is pressed against the rear end surface of the curling portion 10i and folded back. The second lip portion 1 at the tip of the portion 15
6 is pressed against the outer peripheral surface of the burring 10c.

【0024】[0024]

【発明の効果】以上の説明から明らかなように、本発明
の請求項1のグロメットは、車体パネルの貫通穴の周縁
からバーリングが突出し、かつ、該バーリングの先端か
らフランジ部あるいはカーリング部が突出している場合
に用いることができ、グロメットを車体外面側から挿入
していくと、円錐状筒部がバーリング先端のフランジ部
あるいはカーリング部により押し広げられ、乗り越えた
時点で現状に復帰してフランジ部あるいはカーリング部
と車体パネル外面との間に折返部を挿入係止できる。か
つ、同時に、第1リップ部をフランジ部あるいはカーリ
ング部に、第2リップ部とをバーリング外周面に圧接で
きる。このように、押し込むだけの一方向の挿入作業の
みで、ワンタッチで車体パネルにグロメットを取り付け
ることができ、従来のような押し込みと引き戻しの2作
業ではないので、取り付け作業性が向上するようにな
る。また、グロメットは2ピース構造ではなく、1ピー
ス構造であるからコスト安になる。
As is apparent from the above description, in the grommet according to claim 1 of the present invention, the burring is projected from the peripheral edge of the through hole of the vehicle body panel, and the flange portion or the curling portion is projected from the tip of the burring. When the grommet is inserted from the outer surface side of the vehicle body, the conical tubular part is expanded by the flange part or curling part at the tip of the burring, and when it gets over, it returns to the current state and the flange part is restored. Alternatively, the folded portion can be inserted and locked between the curling portion and the outer surface of the vehicle body panel. At the same time, the first lip portion can be pressed against the flange portion or the curling portion, and the second lip portion can be pressed against the outer peripheral surface of the burring. In this way, the grommet can be attached to the vehicle body panel with a single touch by only inserting in one direction by pushing in, and since it is not the two operations of pushing in and pulling back as in the past, the installation workability is improved. . Further, since the grommet has a one-piece structure rather than a two-piece structure, the cost is reduced.

【0025】請求項2のグロメットでは、折返部を薄肉
としているため容易に撓ませることができる。また、請
求項3のグロメットでは、円錐状筒部の後部側を厚肉と
するため、押し込み力をかけても円錐状筒部の全体が撓
まず、前部側の薄肉とした部分のみが撓み、折返部がバ
ーリング先端のフランジ部あるいはカーリング部を容易
に乗り越えて、係止させることができる。
In the grommet according to the second aspect, since the folded-back portion is thin, it can be easily bent. Further, in the grommet according to claim 3, since the rear side of the conical tubular portion is made thick, the entire conical tubular portion does not bend even when a pushing force is applied, and only the thin portion at the front side bends. The folded portion can easily get over the flange portion or the curling portion at the tip of the burring and be locked.

【0026】請求項4のグロメット取付構造とすると、
周縁よりバーリングを突設した車体パネルの貫通穴に対
してグロメットを押し込み操作だけで簡単かつ確実にシ
ール状態で係止できる。
According to the grommet mounting structure of claim 4,
By simply pushing the grommet into the through hole of the vehicle body panel where the burring is projected from the peripheral edge, it can be locked in a sealed state simply and reliably.

【図面の簡単な説明】[Brief description of the drawings]

【図1】 本発明の第1実施形態のグロメットを示し、
(A)は斜視図、(B)は断面図である。
FIG. 1 shows a grommet of a first embodiment of the present invention,
(A) is a perspective view, (B) is a sectional view.

【図2】 第1実施形態のグロメットにワイヤハーネス
を通して車体パネルの貫通穴に取り付けた状態を示す断
面図である。
FIG. 2 is a cross-sectional view showing a state in which a wire harness is passed through the grommet of the first embodiment and attached to a through hole of a vehicle body panel.

【図3】 (A)(B)(C)は第1実施形態のグロメ
ットを車体パネルの貫通穴に取り付ける工程を示す要部
断面図である。
3 (A), (B), and (C) are main-portion cross-sectional views showing a step of attaching the grommet of the first embodiment to a through hole of a vehicle body panel.

【図4】 第2実施形態のグロメットにワイヤハーネス
を通し車体パネルの貫通穴に取り付けた状態を示す断面
図である。
FIG. 4 is a cross-sectional view showing a state in which a wire harness is passed through a grommet of the second embodiment and attached to a through hole of a vehicle body panel.

【図5】 第3実施形態のグロメットにワイヤハーネス
を通し車体パネルの貫通穴に取り付けた状態を示す断面
図である。
FIG. 5 is a cross-sectional view showing a state in which a wire harness is passed through a grommet of a third embodiment and attached to a through hole of a vehicle body panel.

【図6】 従来のグロメットを示す断面図である。FIG. 6 is a sectional view showing a conventional grommet.

【図7】 他の従来のグロメットを示す断面図である。FIG. 7 is a cross-sectional view showing another conventional grommet.

【図8】 他の従来のグロメットを示す断面図である。FIG. 8 is a cross-sectional view showing another conventional grommet.

【符号の説明】[Explanation of symbols]

10 車体パネル 10a 貫通穴 10b 外面 10c バーリング 10e フランジ部 10i カーリング部 11 グロメット 12 小径筒部 13 円錐状筒部 14 折返部 15 第1リップ部 16 第2リップ部 W/H ワイヤハーネス 10 Body Panel 10a Through Hole 10b Outer Surface 10c Burring 10e Flange Part 10i Curling Part 11 Grommet 12 Small Diameter Cylinder Part 13 Conical Cylinder Part 14 Folding Part 15 First Lip Part 16 Second Lip Part W / H Wire Harness

Claims (4)

【特許請求の範囲】[Claims] 【請求項1】 ゴムまたはエラストマーで一体成形して
おり、ワイヤハーネスを挿通する小径筒部と、該小径筒
部の前端に連続して拡径していく円錐状筒部と、該円錐
状筒部の前端より内側に折り返した可撓性を有する折返
部とを備え、上記円錐状筒部と折返部との連続部の内面
側に内方へ突出した環状の第1リップ部を設けていると
共に折返部の先端に膨出させた第2リップ部を設けてい
ることを特徴とするグロメット。
1. A small-diameter tubular portion integrally formed of rubber or elastomer, a small-diameter tubular portion through which a wire harness is inserted, a conical tubular portion continuously expanding in diameter at a front end of the small-diameter tubular portion, and the conical tubular portion. A flexible folding portion that is folded back inward from the front end of the portion, and an annular first lip portion that projects inward is provided on the inner surface side of the continuous portion of the conical tubular portion and the folding portion. A grommet characterized in that a bulged second lip portion is provided at the tip of the folded portion.
【請求項2】 上記折返部は薄肉として可撓性を持たせ
ている請求項1に記載のグロメット。
2. The grommet according to claim 1, wherein the folded-back portion is thin and has flexibility.
【請求項3】 上記小径筒部に連続する円錐状筒部の後
側部分は厚肉とすると共に、第1リップ部を設ける前側
部分は薄肉として、円錐状筒部の前側部分を撓みやすく
している請求項1または請求項2に記載のグロメット。
3. The rear portion of the conical tubular portion which is continuous with the small diameter tubular portion is thick and the front portion of the conical tubular portion is thin so that the front portion of the conical tubular portion can be easily bent. The grommet according to claim 1 or 2, wherein
【請求項4】 グロメットを取り付ける車体パネルの貫
通穴にグロメット挿入側に突出するバーリングが設けら
れていると共に該バーリングの突出端より外側へ折り返
されたフランジ部が設けられている一方、 上記グロメットはゴムまたはエラストマーより一体成形
し、ワイヤハーネスを挿通する小径筒部と、該小径筒部
の前端に連続して拡径していく円錐状筒部と、該円錐状
筒部の前端より内側に折り返した可撓性を有する折返部
とを備え、上記円錐状筒部と折返部との連続部の内面側
に内方へ突出した環状の第1リップ部を設けていると共
に折返部の先端に膨出させた第2リップ部を設けてお
り、 上記車体のバーリングに対して、上記グロメットの折返
部および円錐状筒部を撓ませて外嵌させ、バーリングの
フランジ部を乗り越えた時に復元する折返部先端の第2
リップ部をバーリング外周面に圧接していると共に、第
1リップ部をフランジ部の端面に圧接しているグロメッ
トの取付構造。
4. A bar ring projecting to the grommet insertion side is provided in a through hole of a vehicle body panel to which the grommet is attached, and a flange portion that is folded back outward from a projecting end of the burr ring is provided. A small-diameter tubular portion integrally molded from rubber or elastomer, a cone-shaped tubular portion that continuously expands in diameter at the front end of the small-diameter tubular portion, and a folded back portion inside the front end of the conical tubular portion. A flexible fold-back portion, and an annular first lip portion projecting inward is provided on the inner surface side of the continuous portion of the conical tubular portion and the fold-back portion, and the tip of the fold-back portion is swollen. The protruding second lip portion is provided, and when the folded portion and the conical cylindrical portion of the grommet are flexed and fitted externally to the burring of the vehicle body, when the flange portion of the burring is crossed over. Former to fold tip second
A grommet mounting structure in which the lip portion is pressed against the outer peripheral surface of the burring and the first lip portion is pressed against the end surface of the flange portion.
JP7261533A 1995-10-09 1995-10-09 Grommet and mounting structure thereof Withdrawn JPH09106723A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7261533A JPH09106723A (en) 1995-10-09 1995-10-09 Grommet and mounting structure thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7261533A JPH09106723A (en) 1995-10-09 1995-10-09 Grommet and mounting structure thereof

Publications (1)

Publication Number Publication Date
JPH09106723A true JPH09106723A (en) 1997-04-22

Family

ID=17363224

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7261533A Withdrawn JPH09106723A (en) 1995-10-09 1995-10-09 Grommet and mounting structure thereof

Country Status (1)

Country Link
JP (1) JPH09106723A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013128407A (en) * 2013-01-21 2013-06-27 Mirai Ind Co Ltd Protection structure of through-hole end face in substrate material, bushing, and device for boring tool and bushing
KR101400461B1 (en) * 2008-11-24 2014-05-28 기아자동차주식회사 Grommet for a vehicle

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101400461B1 (en) * 2008-11-24 2014-05-28 기아자동차주식회사 Grommet for a vehicle
JP2013128407A (en) * 2013-01-21 2013-06-27 Mirai Ind Co Ltd Protection structure of through-hole end face in substrate material, bushing, and device for boring tool and bushing

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