JP3226202B2 - Grommet - Google Patents
GrommetInfo
- Publication number
- JP3226202B2 JP3226202B2 JP17624295A JP17624295A JP3226202B2 JP 3226202 B2 JP3226202 B2 JP 3226202B2 JP 17624295 A JP17624295 A JP 17624295A JP 17624295 A JP17624295 A JP 17624295A JP 3226202 B2 JP3226202 B2 JP 3226202B2
- Authority
- JP
- Japan
- Prior art keywords
- grommet
- hole
- soft
- elastic locking
- edge
- 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
- Insertion, Bundling And Securing Of Wires For Electric Apparatuses (AREA)
- Insulating Bodies (AREA)
- Installation Of Indoor Wiring (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、パネル等の構造体に設
けられたパネル孔にワイヤーハーネスの電線束などを挿
通する際に、パネル孔とワイヤハーネスとの間隙からパ
ネル内に雨水などが浸入するのを防止するグロメットに
係り、硬質グロメット本体と軟質グロメット基体からな
る二部品構成のグロメットに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for inserting wire bundles of a wire harness into a panel hole provided in a structure such as a panel. Grommets to prevent intrusion
The present invention relates to a two-part grommet including a hard grommet main body and a soft grommet base.
【０００２】[0002]
【従来の技術】従来の二部品構成のグロメットとして
は、電線束を挿通してテープが巻き付けられる部分をゴ
ム等の軟質材で形成し、パネル孔に嵌合される部分を硬
質の合成樹脂材で形成して、車両のパネル孔から容易に
外れないようにすると共に、パネル孔への嵌合性を良く
した二部品構成のグロメットが、実公平６−１９８９９
号公報に提案されている。2. Description of the Related Art As a conventional two-part grommet, a portion where a wire bundle is inserted and a tape is wound is formed of a soft material such as rubber, and a portion fitted into a panel hole is formed of a hard synthetic resin material. The two-part grommet, which is formed from the above and prevents it from easily coming off from the panel hole of the vehicle and has good fitting property to the panel hole, is disclosed in Japanese Utility Model Publication No. 6-19899.
No. 1993.
【０００３】実公平６−１９８９９号公報には、図６に
示すような、硬質グロメット本体ａと、軟質グロメット
ｂとから成るグロメットＧが開示されている。Ｗはグロ
メットＧに挿通するワイヤハーネスである。このような
グロメットＧを車両のパネル孔に取付ける際に、グロメ
ットＧに挿通するワイヤーハーネスＷに張力を加えた
り、作業中の何らかの外力によって、図７に示すよう
に、軟質グロメットｂのリップ部ｃがめくれることがあ
り、パネルｄとの間に隙間ｅが生じて防水性が確保でき
ない欠点がある。Japanese Utility Model Publication No. Hei 6-19899 discloses a grommet G comprising a hard grommet main body a and a soft grommet b as shown in FIG. W is a wire harness inserted into the grommet G. When attaching such a grommet G to a panel hole of a vehicle, a tension is applied to a wire harness W inserted through the grommet G, or due to some external force during work, as shown in FIG. There is a drawback in that a gap e may be formed between the panel d and the panel d so that waterproofness cannot be secured.
【０００４】そこで、図８に示すように、硬質グロメッ
ト本体ａの端部に補強用の突部ｆを設け、これに対応し
て軟質グロメットｂに凹部ｇを形成して、突部ｆと凹部
ｇとを嵌合させてリップ部ｃのめくれを防止することも
提案されているが、ワイヤハーネス配索時の衝撃的な外
力が加えられたときには、めくれが生じることがあり、
めくれを完全に解消することができないなどの問題点が
ある。Accordingly, as shown in FIG. 8, a reinforcing projection f is provided at the end of the hard grommet main body a, and a recess g is formed in the soft grommet b corresponding to this, so that the projection f and the recess g are formed. It has also been proposed to prevent the lip c from turning up by fitting with the g. However, when an impact external force is applied during wiring of the wire harness, the turning up may occur.
There is a problem that the turning over cannot be completely eliminated.
【０００５】[0005]
【発明が解決しようとする課題】本発明は、上記の問題
点を解決するためになされたものであって、グロメット
に対して外力が加えられてもリップ部にめくれが発生せ
ず、確実な防水効果が安定して得られる信頼性の高いグ
ロメットを提供することを目的とする。SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and the lip portion is not turned up even when an external force is applied to the grommet, so that the grommet does not turn over. An object of the present invention is to provide a highly reliable grommet that can stably obtain a waterproof effect.
【０００６】[0006]
【課題を解決するための手段】前記の目的を達成するた
め、本発明のグロメットは、中央部に穴部を有するグロ
メット基板に、構造体に設けた装着孔に嵌入する筒状壁
を立設した硬質グロメット本体と、中央部に電線挿通孔
を有し周縁部に前記グロメット基板を受容する収容溝を
形成すると共に前記構造体に密着させる防水リップを周
設した軟質グロメット基体とを備えて成るグロメットに
おいて、前記硬質グロメット本体の筒状壁の外側に前記
装着孔の周縁に係合する係止部を有する複数の弾性係止
片を付設すると共に、前記軟質グロメット基体の収容溝
の縁部と前記弾性係止片とを係止する手段を設けたこと
を特徴とする。請求項２に記載したように、軟質グロメ
ット基体の収容溝の縁部に前記弾性係止片を挿入する係
止孔を設け、該係止孔に弾性係止片を挿入して係止する
ことが好ましい。In order to achieve the above-mentioned object , a grommet according to the present invention comprises a grommet having a hole at a central portion.
The Met substrate, thereby forming a hard grommet body erected a cylindrical wall that fits into the mounting hole provided in the structure, a receiving groove for receiving the grommet substrate to the peripheral portion has a wire insertion hole in the central portion in the grommet comprising a soft grommet substrate was provided around a waterproof lip to adhere to the structure, the outside of the cylindrical wall of the rigid grommet body
A plurality of elastic locking pieces each having a locking portion engaging with a peripheral edge of the mounting hole are provided, and a receiving groove of the soft grommet base is provided.
Characterized in that a means for locking the the edge portion and the elastic latching pieces. As described in claim 2, a locking hole for inserting the elastic locking pieces to the edge of the receiving groove of the soft grommet body provided, be inserted and locked into the elastic latching pieces in the locking hole Is preferred.
【０００７】[0007]
【作用】本発明のグロメットは、硬質グロメット本体に
設けた弾性係止片を、軟質グロメット基体の係止孔に挿
入して係止しているため、軟質グロメット基体の防水リ
ップをめくる力が働いたときに、弾性係止片によって軟
質グロメット基体の収容溝の変位を抑えて防水リップの
めくれが防止される。また、防水リップに対し大きな外
力が働いても、弾性係止片が弾性的に変位して軟質グロ
メット基体を引き戻すように作用し、外力がなくなれば
直ちに元の状態に復帰するため、衝撃的な外力に対して
も防水リップのめくれが確実に防止され、安定した防水
効果が得られる。According to the grommet of the present invention, since the elastic locking piece provided on the hard grommet main body is inserted into the locking hole of the soft grommet base and locked, a force for turning the waterproof lip of the soft grommet base works. In this case, the elastic locking piece suppresses the displacement of the accommodation groove of the soft grommet base, thereby preventing the waterproof lip from being turned up. Also, even if a large external force acts on the waterproof lip, the elastic locking piece is elastically displaced and acts to pull back the soft grommet base, and when there is no external force, it immediately returns to the original state. In addition, the waterproof lip is reliably prevented from being turned up against a shocking external force, and a stable waterproof effect can be obtained.
【０００８】[0008]
【実施例】図１は、本発明の実施例に係るグロメットＡ
の正面図であり、図２はその縦断面図である。グロメッ
トＡは、電気絶縁性の合成樹脂材を成形加工により形成
した硬質グロメット本体１と、ゴム材の成形加工により
形成された軟質グロメット基体２とから成る。DETAILED DESCRIPTION FIG. 1, a grommet A according to an embodiment of the present invention
FIG. 2 is a longitudinal sectional view of FIG. The grommet A includes a hard grommet main body 1 formed by molding an electrically insulating synthetic resin material and a soft grommet base 2 formed by molding a rubber material.
【０００９】硬質グロメット本体１は、環状グロメット
基板３に円筒状の筒状壁４を立設した構造を有し、筒状
壁４には、複数の弾性係止片５がその自由端を環状グロ
メット基板３に向けて付設されている。弾性係止片５の
中間部には、車両のパネル等の構造体に対する係止爪６
が設けられている。The hard grommet body 1 has a structure in which a cylindrical tubular wall 4 is erected on an annular grommet substrate 3, and a plurality of elastic locking pieces 5 are provided on the cylindrical wall 4. Free end is annular glow
It is attached to the met substrate 3. A locking claw 6 for a structure such as a vehicle panel is provided at an intermediate portion of the elastic locking piece 5.
Is provided.
【００１０】軟質グロメット基体２は、中央部に蛇腹状
の伸縮部２ａを介して電線挿通孔７が形成され、周縁部
に硬質グロメット本体１の環状グロメット基板３を嵌着
する収容溝８が周設されている。収容溝８の内側縁部８
ａには、硬質グロメット本体１の弾性係止片５を挿入す
るための係止孔９が形成されている。また、収容溝８の
外側には車両のパネル等の構造体に対して密着させるた
めの防水リップ１０が周設されている。The soft grommet base 2 has an electric wire insertion hole 7 formed at the center via a bellows-like expansion and contraction portion 2a, and a peripheral groove formed with a housing groove 8 for fitting the annular grommet substrate 3 of the hard grommet body 1. Has been established. Inner edge 8 of accommodation groove 8
A locking hole 9 for inserting the elastic locking piece 5 of the hard grommet main body 1 is formed in a. A waterproof lip 10 is provided around the outer side of the accommodation groove 8 so as to be in close contact with a structure such as a vehicle panel.
【００１１】次に、上記の弾性係止片５の作用について
説明する。グロメットＡは、図３に示すように、構造体
としてのパネルＰに設けられた装着孔Ｐ1 に、硬質グロ
メット本体１の筒状壁４を嵌入し、弾性係止片５の係止
爪６を装着孔Ｐ1 の周縁に当接させることによりパネル
Ｐに係止される。防水リップ１０の端縁１０ａがパネル
Ｐに密着して装着孔Ｐ1 内への雨水の浸入を阻止してい
る。Next, the operation of the elastic locking piece 5 will be described. As shown in FIG. 3, the grommet A is such that the cylindrical wall 4 of the hard grommet main body 1 is fitted into a mounting hole P 1 provided in a panel P as a structural body, Is brought into contact with the peripheral edge of the mounting hole P 1 to be locked to the panel P. And edge 10a of the waterproof lip 10 is in close contact with the panel P is preventing the infiltration of rainwater into the mounting hole P 1.
【００１２】図４の矢印に示すように、防水リップ１０
をめくるような外力が働いても、弾性係止片５の先端部
５ａが軟質グロメット基体２の係止孔９に挿入されてい
るため、防水リップ１０をめくる力が弾性係止片５によ
って抑止され、防水リップ１０がめくれ上がることがな
い。As shown by the arrow in FIG.
Even when an external force is applied to turn the waterproof lip 10, the distal end portion 5 a of the elastic locking piece 5 is inserted into the locking hole 9 of the soft grommet base 2. Therefore, the waterproof lip 10 does not turn up.
【００１３】さらに大きな力が防水リップ１０に働いた
ときは、図５に示すように、弾性係止片５の先端部５ａ
が外側に弾性的に変位し、先端部５ａが元の状態に復帰
しようとするため、防水リップ１０をめくり上げようと
する外力に抗して防水リップ１０を元の位置に引き戻す
力（矢印方向）が作用する。したがって、防水リップ１
０に対する外力がなくなれば、直ちに弾性係止片５の先
端部５ａが元の状態に復帰して防水リップ１０のめくれ
が防止される。When a greater force is applied to the waterproof lip 10, as shown in FIG.
Is elastically displaced outward, and the distal end portion 5a attempts to return to the original state, so that the waterproof lip 10 is pulled back to the original position against an external force that tries to flip the waterproof lip 10 up (in the direction of the arrow). ) Works. Therefore, the waterproof lip 1
As soon as the external force with respect to zero disappears , the distal end portion 5a of the elastic locking piece 5 returns to the original state, thereby preventing the waterproof lip 10 from being turned up.
【００１４】[0014]
【発明の効果】本発明のグロメットは、硬質グロメット
本体に設けた弾性係止片を、軟質グロメット基体の係止
孔に挿入して係止しているため、弾性係止片によって軟
質グロメット基体の収容溝の変位を抑えて防水リップの
めくれが防止される。また、衝撃的な外力に対しても弾
性係止片が弾性変位して軟質グロメット基体を支持し、
外力がなくなったときに元の状態に復帰するため、防水
リップのめくれが確実に防止され、安定した信頼性の高
い防水効果が得られるなどの利点がある。According to the grommet of the present invention, since the elastic locking piece provided on the hard grommet main body is inserted into the locking hole of the soft grommet base and locked, the elastic locking piece forms the soft grommet base. curling waterproof lip is prevented by suppressing the displacement of the receiving groove. Also, the elastic locking piece elastically displaces against an external shocking force to support the soft grommet base,
Since the original state is restored when the external force disappears, there is an advantage that the turning of the waterproof lip is reliably prevented, and a stable and highly reliable waterproof effect can be obtained.
【図１】本発明の実施例に係るグロメットの正面図であ
る。1 is a front view of a grommet according to an embodiment of the present invention.
【図２】図１のグロメットの縦断面図である。FIG. 2 is a longitudinal sectional view of the grommet of FIG.
【図３】図１のグロメットをパネルの装着孔に取り付け
た状態を示す断面図である。FIG. 3 is a cross-sectional view showing a state where the grommet of FIG. 1 is attached to a mounting hole of a panel.
【図４】図３のグロメットに対し防水リップをめくる外
力が作用した状態を示す説明図である。FIG. 4 is an explanatory view showing a state in which an external force for turning up a waterproof lip acts on the grommet of FIG. 3;
【図５】図４の防水リップに対しさらに大きい外力が作
用した状態を示す説明図である。FIG. 5 is an explanatory view showing a state in which a larger external force acts on the waterproof lip of FIG. 4;
【図６】従来のグロメットを示す縦断面図である。FIG. 6 is a longitudinal sectional view showing a conventional grommet.
【図７】図６のグロメットのリップ部がめくれた状態を
示す説明図である。FIG. 7 is an explanatory view showing a state where a lip portion of the grommet of FIG. 6 is turned up.
【図８】図６のグロメットのリップ部のめくれを防止す
る手段を示す説明図である。FIG. 8 is an explanatory view showing a means for preventing the lip portion of the grommet of FIG. 6 from being turned up.
Ａ グロメット １ 硬質グロメット本体 ２ 軟質グロメット基体 ３ 環状グロメット基板 ４ 筒状壁 ５ 弾性係止片 ７ 電線挿通孔 ８ 収容溝 ９ 係止孔 １０ 防水リップA Grommet 1 Hard grommet main body 2 Soft grommet base 3 Ring grommet substrate 4 Cylindrical wall 5 Elastic locking piece 7 Wire insertion hole 8 Housing groove 9 Locking hole 10 Waterproof lip
Claims (2)
に、構造体に設けた装着孔に嵌入する筒状壁を立設した
硬質グロメット本体と、中央部に電線挿通孔を有し周縁
部に前記グロメット基板を受容する収容溝を形成すると
共に前記構造体に密着させる防水リップを周設した軟質
グロメット基体とを備えて成るグロメットにおいて、 前記硬質グロメット本体の筒状壁の外側に前記装着孔の
周縁に係合する係止部を有する複数の弾性係止片を付設
すると共に、前記軟質グロメット基体の収容溝の縁部と
前記弾性係止片とを係止する手段を設けたことを特徴と
するグロメット。 A grommet substrate having a hole in the center has a rigid grommet main body having an upright cylindrical wall fitted into a mounting hole provided in the structure, and an electric wire insertion hole in the center and a peripheral edge formed in a peripheral portion. A grommet comprising: a soft grommet base formed with a waterproof lip for forming a receiving groove for receiving the grommet substrate and closely adhering to the structure; wherein the mounting hole is provided outside a cylindrical wall of the hard grommet main body .
A plurality of elastic locking pieces each having a locking portion that engages with a peripheral edge are provided, and an edge of a housing groove of the soft grommet base is provided.
A grommet comprising means for locking the elastic locking piece.
記弾性係止片を挿入する係止孔を設け、該係止孔に弾性
係止片を挿入して係止するようにした請求項１記載のグ
ロメット。2. An edge of a receiving groove of a soft grommet base is provided in front of the edge.
2. The grommet according to claim 1, wherein a locking hole for inserting said elastic locking piece is provided, and said elastic locking piece is inserted and locked in said locking hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17624295A JP3226202B2 (en) | 1995-07-12 | 1995-07-12 | Grommet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17624295A JP3226202B2 (en) | 1995-07-12 | 1995-07-12 | Grommet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0927227A JPH0927227A (en) | 1997-01-28 |
| JP3226202B2 true JP3226202B2 (en) | 2001-11-05 |
Family
ID=16010136
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17624295A Expired - Lifetime JP3226202B2 (en) | 1995-07-12 | 1995-07-12 | Grommet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3226202B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5733123B2 (en) * | 2011-09-12 | 2015-06-10 | 住友電装株式会社 | Grommet |
| JP5780095B2 (en) * | 2011-09-30 | 2015-09-16 | 住友電装株式会社 | Grommet |
| JP6131904B2 (en) * | 2014-04-02 | 2017-05-24 | 住友電装株式会社 | Grommet |
-
1995
- 1995-07-12 JP JP17624295A patent/JP3226202B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0927227A (en) | 1997-01-28 |
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