JP3253510B2 - Grommets for vehicles - Google Patents

Grommets for vehicles

Info

Publication number
JP3253510B2
JP3253510B2 JP34936195A JP34936195A JP3253510B2 JP 3253510 B2 JP3253510 B2 JP 3253510B2 JP 34936195 A JP34936195 A JP 34936195A JP 34936195 A JP34936195 A JP 34936195A JP 3253510 B2 JP3253510 B2 JP 3253510B2
Authority
JP
Japan
Prior art keywords
hole
engaging claw
claw
engaging
panel
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 - Fee Related
Application number
JP34936195A
Other languages
Japanese (ja)
Other versions
JPH09170682A (en
Inventor
博行 橋本
友昭 住田
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.)
Daihatsu Motor Co Ltd
Original Assignee
Daihatsu Motor Co 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 Daihatsu Motor Co Ltd filed Critical Daihatsu Motor Co Ltd
Priority to JP34936195A priority Critical patent/JP3253510B2/en
Publication of JPH09170682A publication Critical patent/JPH09170682A/en
Application granted granted Critical
Publication of JP3253510B2 publication Critical patent/JP3253510B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

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】本発明はブレーキチューブや
ワイヤハーネス等の長尺物を車体パネルの貫通穴に対し
て挿通保持するための車両用グロメットの構造に関する
ものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle grommet structure for inserting and holding a long object such as a brake tube and a wire harness into a through hole of a vehicle body panel.

【0002】[0002]

【従来の技術】従来、この種の車両用グロメットとし
て、実開平4−48487号公報のように、長尺物を弾
性的に挿通保持するゴム製保持部と、車体パネルの貫通
穴に係合する外向きの樹脂製係合爪とを備えたものや、
実開平6−49253号公報のように保持部と係合爪を
樹脂で一体形成したものが知られている。いずれの場合
も、係合爪がそれ自身の弾性により貫通穴に係合し、抜
け止めされるように、樹脂で形成されている。
2. Description of the Related Art Conventionally, as a grommet for a vehicle of this type, as disclosed in Japanese Utility Model Application Laid-Open No. 4-48487, a rubber holding portion for elastically inserting and holding a long object is engaged with a through hole of a vehicle body panel. With an outwardly facing resin engaging claw that
As disclosed in Japanese Utility Model Laid-Open No. 6-49253, a holding unit and an engaging claw are integrally formed of resin. In any case, the engaging claw is formed of resin so as to be engaged with the through hole by its own elasticity and to be prevented from coming off.

【0003】[0003]

【発明が解決しようとする課題】ところが、車体パネル
の貫通穴に対し、グロメットが抜け落ちないようにする
ため、係合爪の掛かり代を大きくすると、係合爪が貫通
穴の内縁と強く摩擦するため、組付性が悪化する。逆
に、係合爪の掛かり代を小さくすると、組付性がよくな
るものの、当然ながら係合爪は外れやすくなる。また、
係合爪の掛かり代を大きくした場合、貫通穴への初期挿
入力が大きくなるので、グロメットを強く押し込む必要
があり、そのため係合爪が折損する恐れがあった。
However, in order to prevent the grommet from dropping out of the through hole of the vehicle body panel, if the engaging allowance of the engaging claw is increased, the engaging claw strongly frictions with the inner edge of the through hole. Therefore, the assemblability deteriorates. Conversely, if the hook allowance of the engaging claw is reduced, the assembling property is improved, but the engaging claw is easily released as a matter of course. Also,
In the case where the engagement allowance of the engaging claw is increased, the initial insertion force into the through hole is increased, so that it is necessary to strongly push the grommet, so that the engaging claw may be broken.

【0004】そこで、本発明の目的は、組付性の改善と
貫通穴からの脱落防止とを両立できる車両用グロメット
を提供することにある。
SUMMARY OF THE INVENTION It is an object of the present invention to provide a grommet for a vehicle which can achieve both improvement in assemblability and prevention of falling out of a through hole.

【0005】[0005]

【課題を解決するための手段】上記目的を達成するため
に、本発明は、車体のパネルに設けられた貫通穴に取り
付けられ、チューブやワイヤハーネスなどの長尺物を挿
通保持するグロメットにおいて、上記長尺物を弾性的に
挿通保持する保持部と、上記貫通穴に係合する外向きの
樹脂製係合爪とを有し、上記係合爪の外周面の頂部側
に、係合爪より幅狭な山形突起を一体に形成したもので
ある。
In order to achieve the above object, the present invention provides a grommet which is attached to a through-hole provided in a panel of a vehicle body and inserts and holds a long object such as a tube or a wire harness. A holding portion that elastically inserts and holds the long object, and an outward resin engagement claw that engages with the through hole; an engagement claw is provided on a top side of an outer peripheral surface of the engagement claw; A narrower chevron projection is formed integrally.

【0006】グロメットに長尺物を保持した状態で、そ
の樹脂製係合爪をパネルの貫通穴に挿入すると、係合爪
の外周面が貫通穴の内縁に接触し、係合爪は内方へ撓め
られる。この時、係合爪の掛かり代は小さくてよいの
で、初期挿入力を抑制できる。挿入途中で山形突起が貫
通穴の内縁に接触し、突起が貫通穴を乗り越えた段階
で、係合爪は貫通穴に係止される。山形突起が貫通穴の
内縁に接触した段階で挿入力が増加するが、すでに係合
爪が多少撓んでいるので、折損の不具合は殆ど生じな
い。このように、本発明では係合爪の掛かり代を全体的
に大きくするのではなく、係合爪を部分的に高くするこ
とにより、パネルの貫通穴への挿入力を上げずに、パネ
ルへの掛かり代を大きくすることができる。そのため、
組付性の改善と貫通穴からの脱落防止とを両立できる。
When the resin engaging claw is inserted into the through hole of the panel while the long object is held by the grommet, the outer peripheral surface of the engaging claw contacts the inner edge of the through hole, and the engaging claw moves inward. To be bent. At this time, since the engaging margin of the engaging claw may be small, the initial insertion force can be suppressed. During the insertion, the chevron projection comes into contact with the inner edge of the through hole, and at the stage where the projection gets over the through hole, the engaging claw is locked in the through hole. The insertion force increases at the stage where the chevron comes into contact with the inner edge of the through hole. However, since the engaging claw is already slightly bent, breakage hardly occurs. As described above, according to the present invention, instead of increasing the engaging allowance of the engaging claw, the engaging claw is partially increased, so that the insertion force into the through-hole of the panel is not increased, and the engaging claw is formed on the panel. Can be increased. for that reason,
It is possible to achieve both improvement in assemblability and prevention of falling out of the through hole.

【0007】本発明の係合爪は、貫通穴に係合する際に
径方向内側へ撓むことが必要である。本発明は、係合爪
を複数個配列した場合のほか、係合爪をスリーブ形状と
したものにも適用できる。ただ、スリーブ形状の場合、
内方へ撓みにくく、貫通穴への圧入抵抗が大きくなりや
すいので、係合爪を複数個配列した場合の方が効果的で
ある。なお、係合爪を複数個配列した場合、山形突起は
全ての係合爪に形成する必要はなく、抜け止め荷重を勘
案して選定すればよい。
The engaging claw of the present invention needs to bend radially inward when engaging with the through hole. The present invention is applicable not only to a case where a plurality of engaging claws are arranged, but also to a case where the engaging claws are formed in a sleeve shape. However, in the case of the sleeve shape,
Since it is difficult to bend inward and the press-fitting resistance to the through-hole tends to increase, it is more effective to arrange a plurality of engaging claws. When a plurality of engaging claws are arranged, it is not necessary to form the chevron projections on all the engaging claws, and it is sufficient to select them in consideration of the retaining load.

【0008】[0008]

【発明の実施の形態】図1は本発明にかかるグロメット
Aの一例を示し、この実施例ではワイヤハーネス3を保
持するために使用される。1は車体パネルであり、この
パネル1には円形の貫通穴2が形成されている。グロメ
ットAは、ゴム製の保持体10と樹脂製のリング体20
とからなり、保持体10の中心部にはハーネス3を弾性
的に保持するための筒部11が一体に形成されている。
また、筒部11の後端部外周には厚肉なフランジ部12
が形成され、フランジ部12の前面側にはリング体20
のフランジ部21を係止するための周溝13が形成され
ている。
FIG. 1 shows an example of a grommet A according to the present invention, which is used to hold a wire harness 3 in this embodiment. Reference numeral 1 denotes a vehicle body panel, in which a circular through hole 2 is formed. The grommet A includes a rubber holder 10 and a resin ring 20.
A cylindrical portion 11 for elastically holding the harness 3 is formed integrally with a central portion of the holding body 10.
A thick flange 12 is provided on the outer periphery of the rear end of the cylindrical portion 11.
Is formed on the front side of the flange portion 12.
A peripheral groove 13 for locking the flange portion 21 is formed.

【0009】リング体20は、図2のように、その一端
側に環状のフランジ部21を有し、このフランジ部21
から複数本(この実施例では4本)の爪片22が一体に
前方へ突設されている。これら爪片22は径方向の弾性
を有している。爪片22の先端部外周には、前方に向か
ってテーパ状に傾斜した係合爪23が形成されている。
係合爪23の外周面の頂部側中央には、図3のように、
係合爪23より幅狭な山形突起24が一体に形成されて
いる。上記係合爪23の掛かり代hは比較的小さ目に形
成されており、山形突起24を含む全体の掛かり代Hは
抜け止めに十分な大きさに設定されている。
As shown in FIG. 2, the ring body 20 has an annular flange portion 21 at one end thereof.
, A plurality of (four in this embodiment) claw pieces 22 are integrally provided to protrude forward. These claw pieces 22 have radial elasticity. On the outer periphery of the tip of the claw piece 22, an engagement claw 23 is formed which is tapered in a forward direction.
As shown in FIG. 3, in the center of the top side of the outer peripheral surface of the engaging claw 23,
An angled projection 24 narrower than the engaging claw 23 is formed integrally. The engaging allowance h of the engaging claw 23 is formed relatively small, and the entire engaging allowance H including the chevron projection 24 is set to a size large enough to prevent slipping.

【0010】なお、山形突起24の位置は、係合爪の外
周面の頂部側中央に限らず、側縁部側に偏った位置に設
けてもよい。また、突起24の形状は、図示のような中
央に稜線を有する角錐形突起に限らず、後述する貫通穴
2への挿入を阻害しない範囲で形状変更が可能である。
The position of the chevron 24 is not limited to the center of the outer peripheral surface of the engaging claw on the top side, but may be provided at a position biased toward the side edge. Further, the shape of the projection 24 is not limited to a pyramid-shaped projection having a ridgeline at the center as shown in the figure, and the shape can be changed within a range that does not hinder insertion into the through hole 2 described later.

【0011】上記保持体10とリング体20とを組み付
けた状態において、係合爪23の係止面23aと保持体
10のフランジ部12の前端面との距離Dは、パネル1
の厚みtよりやや大きく設定されている。なお、リング
体20は環状部品に限らず、一部が切断された横断面略
C字形状であってもよい。
When the holding body 10 and the ring body 20 are assembled, the distance D between the locking surface 23a of the engaging claw 23 and the front end face of the flange 12 of the holding body 10 is
Is set slightly larger than the thickness t. In addition, the ring body 20 is not limited to an annular part, and may have a substantially C-shaped cross section with a part cut off.

【0012】次に、上記構成よりなるグロメットAの作
用を説明する。まず、図1のように保持体10とリング
体20とを組み付け、保持体10の中にハーネス3を挿
通保持する。次に、ハーネス3を保持したグロメットA
をパネル1の貫通穴2に挿入すると、係合爪23の外周
面が貫通穴2の内縁に当たり、爪片22は内方へ撓めら
れる。挿入途中で山形突起24が貫通穴2の内縁に接触
し、爪片22はさらに内方へ撓められるが、突起24の
幅は係合爪23より幅狭であり、しかも山形であるた
め、突起24と貫通穴2との摩擦抵抗が小さく、突起2
4は容易に貫通穴2を乗り越えることができる。突起2
4が貫通穴2を乗り越えた段階で、爪片22は弾性復帰
し、係合爪23は貫通穴2に係止される。この時、掛か
り代Hは、図4のように係合爪23と突起24とが加算
されるので、グロメットAがパネル1から外れるのを確
実に防止できる。
Next, the operation of the grommet A having the above configuration will be described. First, as shown in FIG. 1, the holding body 10 and the ring body 20 are assembled, and the harness 3 is inserted and held in the holding body 10. Next, grommet A holding harness 3
Is inserted into the through hole 2 of the panel 1, the outer peripheral surface of the engaging claw 23 hits the inner edge of the through hole 2, and the claw piece 22 is bent inward. During the insertion, the chevron projection 24 comes into contact with the inner edge of the through hole 2 and the claw piece 22 is further deflected inward. However, since the width of the projection 24 is narrower than the engagement claw 23 and is also chevron, The frictional resistance between the projection 24 and the through hole 2 is small.
4 can easily get over the through hole 2. Protrusion 2
At the stage where 4 has passed through the through hole 2, the claw piece 22 elastically returns, and the engaging claw 23 is locked in the through hole 2. At this time, since the engagement allowance H is added to the engagement claw 23 and the projection 24 as shown in FIG. 4, the grommet A can be reliably prevented from coming off the panel 1.

【0013】なお、本発明は上記実施例に限定されるも
のではない。例えば、本発明はゴム製の保持部と樹脂製
の係合爪とで構成したものに限らず、実開平6−492
53号公報のように全体を樹脂で一体成形したものでも
よい。また、本発明の貫通穴は、実施例のような板状パ
ネルに形成された開口穴に限らず、実開平4−4848
7号公報のようにパネルの貫通穴部分を前方または後方
へ筒状に突出させたものでもよい。さらに、貫通穴は円
形に限らず、角穴であってもよい。したがって、グロメ
ットの係合爪は円弧状に配列されたものに限らない。
The present invention is not limited to the above embodiment. For example, the present invention is not limited to the one constituted by the rubber holding portion and the resin engaging claw,
As in JP-A-53-53, the whole may be integrally molded with resin. Further, the through hole according to the present invention is not limited to the opening hole formed in the plate-like panel as in the embodiment, but may be a real open flat panel 4-4848.
As in Japanese Patent Publication No. 7 (1993) -1995, the through-hole portion of the panel may be formed to project forward or rearward in a cylindrical shape. Further, the through hole is not limited to a circular shape, and may be a square hole. Therefore, the engaging claws of the grommet are not limited to those arranged in an arc shape.

【0014】[0014]

【発明の効果】以上の説明で明らかなように、本発明に
よれば、グロメットの係合爪の掛かり代を全体的に大き
くするのではなく、山形突起を設けて係合爪を部分的に
高くしたので、パネルの貫通穴への挿入力を上げずに、
パネルへの掛かり代を大きくすることができる。そのた
め、組付性の改善と貫通穴からの脱落防止という背反す
る目的を達成することができる。また、初期挿入力を抑
制できるので、係合爪を貫通穴に無理に押し込むことに
よる係合爪の折損といった不具合を解消できる。
As is apparent from the above description, according to the present invention, instead of increasing the hooking allowance of the engaging claw of the grommet as a whole, a chevron-shaped projection is provided to partially engage the engaging claw. Because it was raised, without increasing the insertion force into the through hole of the panel,
It is possible to increase the margin for the panel. Therefore, the contradictory objectives of improving the assemblability and preventing falling out of the through hole can be achieved. Further, since the initial insertion force can be suppressed, it is possible to solve a problem such as breakage of the engaging claw caused by forcibly pushing the engaging claw into the through hole.

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

【図1】本発明にかかるグロメットを用いたハーネスの
取付構造の断面図である。
FIG. 1 is a sectional view of a harness mounting structure using a grommet according to the present invention.

【図2】図1のグロメットに使用される樹脂製リング体
の斜視図である。
FIG. 2 is a perspective view of a resin ring used for the grommet of FIG. 1;

【図3】図2のリング体の係合爪部分の拡大斜視図であ
る。
FIG. 3 is an enlarged perspective view of an engagement claw portion of the ring body of FIG. 2;

【図4】係合爪とパネルとの掛かり代を示す拡大図であ
る。
FIG. 4 is an enlarged view showing a margin of engagement between an engagement claw and a panel.

【符号の説明】[Explanation of symbols]

A グロメット 1 パネル 2 貫通穴 3 ハーネス(長尺物) 10 保持体 20 リング体 23 係合爪 24 山形突起 A Grommet 1 Panel 2 Through hole 3 Harness (long object) 10 Holder 20 Ring body 23 Engagement claw 24 Angle projection

───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7,DB名) F16L 5/02 B60R 16/02 622 B60R 16/08 F16B 19/00 ──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. 7 , DB name) F16L 5/02 B60R 16/02 622 B60R 16/08 F16B 19/00

Claims (1)

(57)【特許請求の範囲】(57) [Claims] 【請求項1】車体のパネルに設けられた貫通穴に取り付
けられ、チューブやワイヤハーネスなどの長尺物を挿通
保持するグロメットにおいて、 上記長尺物を弾性的に挿通保持する保持部と、上記貫通
穴に係合する外向きの樹脂製係合爪とを有し、 上記係合爪の外周面の頂部側に、係合爪より幅狭な山形
突起を一体に形成したことを特徴とする車両用グロメッ
ト。
1. A grommet attached to a through hole provided in a panel of a vehicle body for inserting and holding a long object such as a tube or a wire harness, wherein the holding portion elastically inserts and holds the long object; An outer resin engaging claw that engages with the through hole, and a mountain-shaped projection narrower than the engaging claw is integrally formed on the top side of the outer peripheral surface of the engaging claw. Grommets for vehicles.
JP34936195A 1995-12-19 1995-12-19 Grommets for vehicles Expired - Fee Related JP3253510B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP34936195A JP3253510B2 (en) 1995-12-19 1995-12-19 Grommets for vehicles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP34936195A JP3253510B2 (en) 1995-12-19 1995-12-19 Grommets for vehicles

Publications (2)

Publication Number Publication Date
JPH09170682A JPH09170682A (en) 1997-06-30
JP3253510B2 true JP3253510B2 (en) 2002-02-04

Family

ID=18403248

Family Applications (1)

Application Number Title Priority Date Filing Date
JP34936195A Expired - Fee Related JP3253510B2 (en) 1995-12-19 1995-12-19 Grommets for vehicles

Country Status (1)

Country Link
JP (1) JP3253510B2 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003100155A (en) * 2001-09-21 2003-04-04 Yazaki Corp Wire harness
CN100436842C (en) * 2004-07-01 2008-11-26 伊利诺斯器械工程公司 Grommet and anchoring structure
JP5147477B2 (en) * 2008-03-19 2013-02-20 住友電装株式会社 Grommet for back door
US8281457B2 (en) * 2009-05-12 2012-10-09 Honda Motor Co., Ltd. Grommet for through body pipe mounting in a vehicle
JP6256759B2 (en) * 2014-03-28 2018-01-10 スズキ株式会社 Meter cluster mounting structure

Also Published As

Publication number Publication date
JPH09170682A (en) 1997-06-30

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