JP2001195938A - Grommet - Google Patents
GrommetInfo
- Publication number
- JP2001195938A JP2001195938A JP2000002733A JP2000002733A JP2001195938A JP 2001195938 A JP2001195938 A JP 2001195938A JP 2000002733 A JP2000002733 A JP 2000002733A JP 2000002733 A JP2000002733 A JP 2000002733A JP 2001195938 A JP2001195938 A JP 2001195938A
- Authority
- JP
- Japan
- Prior art keywords
- cylindrical portion
- grommet
- diameter portion
- diameter
- cylindrical
- 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
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Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明はグロメットに係り、
特に車体パネル等の取付板に対してワイヤーハーネス等
の長尺部材を確実、かつ、容易に貫通保持できるグロメ
ットに関する。TECHNICAL FIELD The present invention relates to a grommet,
In particular, the present invention relates to a grommet capable of securely and easily penetrating and holding a long member such as a wire harness with respect to a mounting plate such as a vehicle body panel.
【０００２】[0002]
【従来の技術】従来より、自動車の車体パネルを貫通す
るようにワイヤーハーネスを配索するためのグロメット
が各種提案されている。そして、本願出願人も、ワイヤ
ーハーネスに嵌合する小径筒部と、取付孔に嵌合可能な
大径筒部と、小径筒部および大径筒部を連結するテーパ
筒部と、大径筒部の外周面に沿って設けられた溝縁部お
よび押え片とを備えたグロメットを提案した（特開平8-
212857号公報：従来例１）。この従来例１によれば、大
径筒部の内周面が外方を向くように裏返すことにより、
押え片の周縁を先細りの円筒状に変形させて取付孔に挿
通させ、次いで小径筒部を取付孔に引き込めば、押え片
が初期形状に復元しようとする反発力により、溝縁部が
取付孔の開口縁部に係合するように大径筒部が初期形状
に復元し、これにより小さい力で簡単、かつ、確実にワ
イヤーハーネスを配索できる。2. Description of the Related Art Hitherto, various grommets for arranging a wire harness so as to penetrate an automobile body panel have been proposed. The applicant of the present application also has a small-diameter tubular portion that fits into the wire harness, a large-diameter tubular portion that can be fitted into the mounting hole, a tapered tubular portion that connects the small-diameter tubular portion and the large-diameter tubular portion, A grommet provided with a groove edge provided along the outer peripheral surface of the portion and a holding piece has been proposed (Japanese Unexamined Patent Application Publication No.
No. 212857: Conventional Example 1). According to Conventional Example 1, by turning over the inner peripheral surface of the large-diameter cylindrical portion so as to face outward,
By deforming the peripheral edge of the holding piece into a tapered cylindrical shape and inserting it into the mounting hole, and then pulling the small-diameter cylindrical part into the mounting hole, the resilient force of the holding piece trying to restore the initial shape causes the groove edge to be attached. The large-diameter cylindrical portion is restored to the initial shape so as to engage with the opening edge of the hole, and the wire harness can be easily and reliably wired with a smaller force.
【０００３】ところで、従来例１のような反転式のグロ
メットは、ワイヤーハーネスの配索にあたって、大径筒
部を裏返した後、小径筒部の外周面と押え片との間に取
付孔の開口縁部が相対的に案内されると、車体パネルに
押されて押え片が初期形状に復元する虞れがある。従っ
て、反転式のグロメットにおいては、ワイヤーハーネス
を容易に配索するために、大径筒部を裏返したとき、小
径筒部の外周面と押え片との間に取付孔の開口縁部を相
対的に案内することなく、かつ、取付孔に対して最初に
押え片を進入させるような工夫が必要となっている。[0003] By the way, in the case of the reversing grommet as in the prior art 1, when the wire harness is routed, after turning the large-diameter cylindrical portion upside down, the opening of the mounting hole is formed between the outer peripheral surface of the small-diameter cylindrical portion and the holding piece. When the edge is relatively guided, there is a possibility that the pressing piece may be restored to the initial shape by being pushed by the vehicle body panel. Therefore, in the reversing grommet, when the large-diameter tube is turned upside down, the opening edge of the mounting hole is relatively positioned between the outer peripheral surface of the small-diameter tube and the holding piece in order to easily route the wire harness. It is necessary to devise a means for firstly pressing the presser piece into the mounting hole without any guiding.
【０００４】このため、従来例１は、押え片の形状，寸
法等を適宜選択することにより、大径筒部を裏返したと
き、押え片が小径筒部を覆うとともにワイヤーハーネス
の外側面に密着可能とされている。これにより、従来例
１は、押え片が小径筒部の端面を覆い、かつ、先細りの
円筒状に変形した押え片の言わば外周面の先端部が、小
径筒部の内周面における延長面よりも内側に配置され
る。すなわち、従来例１は、大径筒部を裏返したとき、
小径筒部の外周面および端面を覆うように変形した押え
片の先端部が取付孔に対して最初に進入するため、小径
筒部の外周面と押え片との間に取付孔の開口縁部を相対
的に案内する虞れがないとともに、取付孔に対して最初
に押え片を進入させることができ、これによりワイヤー
ハーネスを容易、かつ、確実に配索可能となっている。For this reason, in Conventional Example 1, when the large-diameter cylindrical portion is turned over by appropriately selecting the shape, dimensions, and the like of the pressing piece, the pressing piece covers the small-diameter cylindrical portion and adheres to the outer surface of the wire harness. It is possible. Thus, in Conventional Example 1, the pressing piece covers the end surface of the small-diameter cylindrical portion, and the leading end of the so-called outer peripheral surface of the pressing piece deformed into a tapered cylindrical shape is higher than the extended surface on the inner peripheral surface of the small-diameter cylindrical portion. Is also located inside. That is, in Conventional Example 1, when the large-diameter cylindrical portion is turned over,
Since the tip of the holding piece deformed so as to cover the outer peripheral surface and the end face of the small-diameter cylindrical portion first enters the mounting hole, the opening edge of the mounting hole is provided between the outer circumferential surface of the small-diameter cylindrical portion and the holding piece. There is no danger of relatively guiding the wire harness, and the pressing piece can first enter the mounting hole, whereby the wire harness can be easily and reliably routed.
【０００５】[0005]
【発明が解決しようとする課題】ところで、近年、防水
性を向上させるために、小径筒部に充填剤を充填可能な
反転式のグロメットが考えられている（従来例２）。こ
の従来例２において、小径筒部は、ワイヤーハーネスに
嵌合する嵌合部と、充填剤を充填可能な充填部とを有し
ている。充填部は、ワイヤーハーネスに対して密着しな
いような内径寸法を有しているとともに、内周面の周方
向に沿って複数のリブが設けられている。この小径筒部
は、嵌合部および充填部が同軸接続された断付円筒形状
とされている。このような従来例２は、適宜な充填剤に
より充填部とワイヤーハーネスとの間を充塞することに
より良好な防水性が得られるようになっている。By the way, in recent years, in order to improve waterproofness, an inverted grommet capable of filling a small-diameter cylindrical portion with a filler has been proposed (prior art 2). In Conventional Example 2, the small-diameter cylindrical portion has a fitting portion that fits into the wire harness, and a filling portion that can be filled with a filler. The filling portion has an inner diameter dimension that does not make close contact with the wire harness, and is provided with a plurality of ribs along the circumferential direction of the inner peripheral surface. The small-diameter cylindrical portion has a cut-off cylindrical shape in which the fitting portion and the filling portion are coaxially connected. In Conventional Example 2 described above, a good waterproof property can be obtained by filling the gap between the filling portion and the wire harness with an appropriate filler.
【０００６】しかしながら、前述した従来例２は、例え
ば嵌合部の外側に大径筒部が配置されているとともに、
嵌合部と充填部との間に設けられた略円錐形状の境界部
分に接続部が接続されている場合、大径筒部を裏返した
とき、押え片が充填部を覆うことになる。この際、充填
部が従来例１の小径筒部に比較して大径であるため、別
途工夫を施さなければ充填部の端面を押え片により覆う
ことができず、換言すれば、ワイヤーハーネスを容易に
配索できない。この問題に対して、例えば押え片の突出
寸法を大きく設定する方法や、あるいは充填部の軸方向
長さを短くする方法が考えられる。However, in the above-mentioned conventional example 2, the large-diameter cylindrical portion is disposed outside the fitting portion, for example.
When the connecting portion is connected to a substantially conical boundary portion provided between the fitting portion and the filling portion, when the large-diameter cylindrical portion is turned over, the pressing piece covers the filling portion. At this time, since the filling portion has a larger diameter than the small-diameter cylindrical portion of Conventional Example 1, the end face of the filling portion cannot be covered with the pressing piece unless otherwise devised. Cannot be easily routed. To solve this problem, for example, a method of setting the protrusion size of the presser piece large or a method of shortening the axial length of the filling portion can be considered.
【０００７】ところが、従来例２において、押え片の突
出寸法を大きく設定する方法は、ワイヤーハーネスの配
索後、すなわち大径部が初期形状に復元した後、各押え
片が放射状に拡開するため、車体パネルに沿ってグロメ
ットの占有面積が大きくなるという問題が生ずる。一
方、従来例２において、充填部の軸方向長さを短くする
方法は、充填剤を充填する関係上、充填部に一定以上の
軸方向長さが不可欠であるため、充填部の機能を損なう
虞れがある。従って、従来例２において、充填部は、短
小化に限界があり、有効な解決策とはならない。However, in the conventional example 2, the method of setting the size of the protrusion of the presser piece large is such that after the wiring harness is routed, that is, after the large-diameter portion is restored to the initial shape, each presser piece expands radially. Therefore, there is a problem that the occupied area of the grommet increases along the vehicle body panel. On the other hand, in Conventional Example 2, the method of shortening the axial length of the filling portion impairs the function of the filling portion because the filling portion must have an axial length of a certain value or more due to the filling with the filler. There is a fear. Therefore, in the conventional example 2, the filling portion has a limitation in shortening, and is not an effective solution.
【０００８】本発明は、前述した問題点に鑑みてなされ
たものであり、その目的は、第１円筒部に対して第２円
筒部が反転可能であるとともに、第１円筒部に充填剤を
充填する構造であっても、各鍔部の突出寸法を必要以上
に大きくする方法や、あるいは大径部を必要以上に短小
化させる方法を採用することなく、ワイヤーハーネス等
の長尺部材の配索作業を容易、かつ、確実に行えるグロ
メットを提供することにある。The present invention has been made in view of the above-mentioned problems, and has as its object the purpose of being able to reverse the second cylindrical portion with respect to the first cylindrical portion, and to fill the first cylindrical portion with a filler. Even with a filling structure, long members such as wire harnesses can be arranged without adopting a method of unnecessarily increasing the protruding dimension of each flange or unnecessarily shortening a large diameter portion. An object of the present invention is to provide a grommet that can easily and reliably perform a cable search operation.
【０００９】[0009]
【課題を解決するための手段】本発明は、取付板に形成
された取付孔に長尺部材を貫通保持するために、前記長
尺部材を挿通可能な可能な第１円筒部と、前記第１円筒
部の外周面に設けられた環状の接続部を介して接続され
た第２円筒部と、前記第２円筒部の外周面に沿って設け
られた溝部と、前記第２円筒部の外周面における前記溝
部と前記接続部との間から放射状に設けられた複数の鍔
部とを有するグロメットを前提としている。このグロメ
ットは、前記第１円筒部に充填された充填剤により前記
長尺部材を前記第１円筒部に保持させた後、前記第２円
筒部を内周面が外方を向くように裏返すことにより、前
記各鍔部の先端部を集合させて前記取付孔に挿入し、次
いで前記第２円筒部を初期形状に復元させることにより
前記取付孔の開口縁部に前記溝部を嵌合させるグロメッ
トである。According to the present invention, there is provided a first cylindrical portion through which the long member can be inserted in order to hold the long member through a mounting hole formed in the mounting plate; A second cylindrical portion connected via an annular connecting portion provided on an outer peripheral surface of one cylindrical portion, a groove provided along an outer peripheral surface of the second cylindrical portion, and an outer periphery of the second cylindrical portion It is assumed that the grommet has a plurality of flanges provided radially from between the groove and the connection part on the surface. The grommet is configured such that after the long member is held in the first cylindrical portion by the filler filled in the first cylindrical portion, the second cylindrical portion is turned over so that an inner peripheral surface faces outward. With the grommet, the tip portions of the flanges are assembled and inserted into the mounting hole, and then the second cylindrical portion is restored to its initial shape, so that the groove is fitted to the opening edge of the mounting hole. is there.
【００１０】そして、前述した目的を達成するために、
本発明は、請求項１に記載したように、前記第１円筒部
が、前記長尺部材を圧入可能な小径部と、前記小径部に
連続するとともに充填剤を充填可能な大径部とを同軸接
続した段付形状であるとともに、前記第２円筒部の端面
および前記大径部の端面が互いに離れる方向を向き、か
つ、前記第２円筒部および前記大径部の少なくとも一部
同士が互いに略入れ子状に配置されるように、前記接続
部が前記大径部の外周面に接続されていることにより、
前記第２円筒部を裏返したときに、前記各鍔部が前記大
径部の端面を被覆可能であることを特徴としている。Then, in order to achieve the above-mentioned object,
In the present invention, as described in claim 1, the first cylindrical portion includes a small-diameter portion capable of press-fitting the long member, and a large-diameter portion continuous with the small-diameter portion and capable of being filled with a filler. The coaxial connection has a stepped shape, and the end surface of the second cylindrical portion and the end surface of the large-diameter portion face away from each other, and at least a part of the second cylindrical portion and the large-diameter portion are mutually connected. As the connection portion is connected to the outer peripheral surface of the large diameter portion so as to be arranged in a substantially nested manner,
Each of the flanges is capable of covering the end surface of the large-diameter portion when the second cylindrical portion is turned upside down.
【００１１】ここで、接続部の接続位置としては、第２
円筒部および大径部の少なくとも一部が互いに略入れ子
状に配置可能であれば、第２円筒部の外周面における任
意位置を選択できるが、可能な限り大径部の軸方向中央
部から開放端部までの任意位置が好ましい。なお、大径
部における小径部側端部に接続部を接続する場合、例え
ば接続部の形状を大径部の開放端部側に向かって拡開す
る円錐状に形成しておけば、第２円筒部および大径部の
少なくとも一部が互いに略入れ子状に配置可能となる。
このような構造も請求項１に含まれる。Here, the connection position of the connection portion is the second position.
Any position on the outer peripheral surface of the second cylindrical portion can be selected as long as at least a part of the cylindrical portion and the large diameter portion can be arranged substantially nested with each other. Any position up to the end is preferred. In addition, when connecting the connecting portion to the small-diameter portion side end of the large-diameter portion, for example, if the shape of the connecting portion is formed in a conical shape that expands toward the open end side of the large-diameter portion, the second shape is obtained. At least a part of the cylindrical portion and the large diameter portion can be arranged substantially nested with each other.
Such a structure is also included in claim 1.
【００１２】このように構成されたグロメットにおいて
は、例えば大径部に対する接続部の接続位置や、あるい
は接続部の形状を適宜選択することにより、第２円筒部
および大径部の少なくとも一部が互いに略入れ子状に配
置されているため、初期形状における各鍔部の先端位置
と、大径部の端面との間の離間寸法を小さくできること
になる。ここで、グロメットは、第２円筒部を裏返した
とき、鍔部の突出長さ寸法を主因として、各鍔部におけ
る鍔面の向きが略 180度変向する 180度反転式グロメッ
トと、各鍔部における鍔面の向きが略90度変向する90度
反転式グロメットとに大別できる。In the grommet constructed as described above, for example, at least a part of the second cylindrical portion and the large diameter portion can be formed by appropriately selecting a connection position of the connection portion to the large diameter portion or a shape of the connection portion. Since they are substantially nested with each other, the distance between the distal end position of each flange portion in the initial shape and the end surface of the large diameter portion can be reduced. Here, when the second cylindrical portion is turned over, the grommet has a 180-degree inverting grommet in which the direction of the flange surface of each flange is changed by approximately 180 degrees mainly due to the length of the protrusion of the flange, The grommet can be roughly classified into a 90-degree reversing grommet in which the direction of the flange surface in the portion is changed by approximately 90 degrees.
【００１３】そして、 180度反転式グロメットは、初期
形状において各鍔部における大径部の開放端部側を向く
鍔面が、第２円筒部を裏返したとき、大径部の端面に対
面するため、これにより大径部の端面が覆われることに
なる。一方、90度反転式グロメットは、接続部の接続位
置を選択しておくことにより、初期形状において各鍔部
における大径部の開放端部側を向く鍔面の少なくとも一
部が、第２円筒部を裏返したとき、長尺部材の外側面に
接触するため、これにより大径部の端面が覆われること
になる。なお、90度反転式グロメットは、あらかじめ初
期形状において各鍔部における大径部の開放端部側を向
く鍔面に凸部を設けておくとともに、接続部の接続位置
を適宜選択することにより、第２円筒部を裏返したと
き、各凸部を大径部の端面に係合させれば、各鍔部が長
尺部材の外側面に接触しなくても大径部の端面を覆うこ
とになる。In the 180-degree reversing grommet, the flange surface facing the open end side of the large diameter portion in each flange portion in the initial shape faces the end surface of the large diameter portion when the second cylindrical portion is turned upside down. As a result, the end face of the large diameter portion is covered. On the other hand, the 90-degree inverting grommet has at least a part of the flange surface facing the open end side of the large-diameter portion in each flange portion in the initial shape by selecting the connection position of the connection portion. When the portion is turned over, it comes into contact with the outer side surface of the elongated member, thereby covering the end surface of the large diameter portion. In addition, the 90-degree reversing grommet is provided with a convex portion on the flange surface facing the open end side of the large diameter portion in each flange portion in the initial shape in advance, and by appropriately selecting the connection position of the connection portion, When the second cylindrical portion is turned over, if each convex portion is engaged with the end surface of the large diameter portion, each flange portion can cover the end surface of the large diameter portion without contacting the outer surface of the long member. Become.
【００１４】すなわち、このグロメットにおいては、大
径部が充填剤を充填可能であっても、各鍔部の突出寸法
を必要以上に大きくする方法や、あるいは大径部を必要
以上に短小化させる方法を採用することなく、第２円筒
部を裏返したときに各鍔部が確実に大径部の端面を覆う
ことになる。従って、このようなグロメットにおいて
は、ワイヤーハーネス等の長尺部材を配索するにあたっ
て、大径部の外周面と各鍔部との間に取付孔の開口縁部
を相対的に案内する虞れがないとともに、取付孔に対し
て最初に各鍔部を進入させることができ、これにより長
尺部材を容易、かつ、確実に配索できることになる。That is, in this grommet, even if the large-diameter portion can be filled with the filler, a method of unnecessarily increasing the protruding dimension of each flange portion, or shortening the large-diameter portion unnecessarily. Without adopting the method, each flange portion surely covers the end face of the large diameter portion when the second cylindrical portion is turned upside down. Therefore, in such a grommet, when arranging a long member such as a wire harness, there is a possibility that the opening edge of the mounting hole is relatively guided between the outer peripheral surface of the large diameter portion and each flange portion. In addition to the above, the flanges can be first inserted into the mounting holes, so that the long members can be easily and reliably arranged.
【００１５】また、本発明は、請求項２に記載したよう
に、前記各鍔部の先端部における鍔面から厚み方向に沿
って突出する凸部を有し、前記第２円筒部を裏返したと
きに、前記各凸部の先端が前記大径部の端面に対して離
れる方向を向くことを特徴としている。Further, according to the present invention, as set forth in claim 2, each of the flanges has a protruding portion projecting from a flange surface at a tip end thereof along a thickness direction, and the second cylindrical portion is turned upside down. Sometimes, the tip of each of the projections faces away from the end face of the large diameter portion.
【００１６】ここで、凸部としては、グロメットが 180
度反転式グロメットである場合、初期形状において第２
円筒部の開放端部側を向く鍔面に設けておけばよい。一
方、グロメットが90度反転式グロメットである場合、断
面略Ｌ字状の凸部を採用でき、鍔部の先端部が断面略ク
ランク状となるように、初期形状において第２円筒部の
開放端部側を向く鍔面に凸部を設けておけばよい。Here, as the convex portion, the grommet is 180.
If the grommet is a degree-reversing grommet,
What is necessary is just to provide in the flange surface facing the open end side of a cylindrical part. On the other hand, when the grommet is a 90-degree reversing grommet, a convex portion having a substantially L-shaped cross section can be adopted, and the open end of the second cylindrical portion in the initial shape is formed so that the tip of the flange has a substantially crank-shaped cross section. Protrusions may be provided on the flange surface facing the part side.
【００１７】このように構成されたグロメットにおいて
は、第２円筒部を裏返したときに、各鍔部の鍔面に設け
られた凸部が大径部の端面に対して離れる方向を向くた
め、これらの凸部が取付孔に対する案内部材として機能
し、これにより取付孔に対して各鍔部が確実、かつ、同
時に進入できることになる。In the grommet configured as described above, when the second cylindrical portion is turned over, the convex portion provided on the flange surface of each flange portion faces in the direction away from the end surface of the large diameter portion. These projections function as guide members for the mounting holes, so that each flange can enter the mounting holes reliably and simultaneously.
【００１８】さらに、本発明は、請求項３に記載したよ
うに、前記大径部における開放端部の周方向に沿って設
けられた係合リブを有し、前記係合リブの端面が前記大
径部の端面と同一面に沿って配置されていることを特徴
としている。ここで、係合リブとしては、例えば断面矩
形の円環状に形成しておけばよく、大径部の外周面およ
び内周面のうちの一方あるいは双方に設けておけばよ
い。Further, according to the present invention, there is provided an engaging rib provided along a circumferential direction of an open end of the large-diameter portion, wherein an end face of the engaging rib is provided. It is characterized by being arranged along the same plane as the end face of the large diameter portion. Here, the engagement rib may be formed, for example, in an annular shape having a rectangular cross section, and may be provided on one or both of the outer peripheral surface and the inner peripheral surface of the large diameter portion.
【００１９】このようなグロメットにおいては、係合リ
ブにより大径部の開放端部が部分的に厚肉化されている
ため、第２円筒部を裏返したときに各鍔部が大径部を覆
っても、大径部の開放端部が縮径変形しない強度を得ら
れることになる。また、このグロメットにおいては、係
合リブの端面が大径部の端面と同一面に沿って配置され
ているため、第２円筒部を裏返したときに、各鍔部に対
する大径部の端面の重複寸法を大きくできることにな
る。すなわち、このグロメットにおいては、係合リブの
端面が大径部の端面と同一面に沿って配置されていない
場合に比較して、各鍔部に対する大径部の端面の重複状
態を維持できるため、第２円筒部を裏返した状態で保
管，搬送した場合、振動，衝撃が加えられても、長尺部
材の配索作業前に意図せず初期形状へ復元する虞れを少
なくできることになる。In such a grommet, since the open end of the large-diameter portion is partially thickened by the engagement rib, when the second cylindrical portion is turned over, each flange portion forms the large-diameter portion. Even if covered, the open end of the large-diameter portion can obtain a strength that does not cause the diameter-reducing deformation. Further, in this grommet, since the end surface of the engaging rib is arranged along the same plane as the end surface of the large diameter portion, when the second cylindrical portion is turned over, the end surface of the large diameter portion with respect to each flange portion is turned. The overlap dimension can be increased. That is, in this grommet, the overlapping state of the end surface of the large diameter portion with respect to each flange portion can be maintained as compared with the case where the end surface of the engaging rib is not arranged along the same surface as the end surface of the large diameter portion. When the second cylindrical portion is stored and transported with the second cylindrical portion turned upside down, even if vibration or impact is applied, the risk of unintentionally restoring to the initial shape before the work of arranging the long member can be reduced.
【００２０】そして、本発明は、請求項４に記載したよ
うに、前記接続部が前記大径部の開放端部に接続されて
いることを特徴としている。このように構成されたグロ
メットにおいては、接続部が大径部の開放端部に接続さ
れているため、各鍔部の突出寸法を必要以上に大きくす
る方法や、あるいは大径部を必要以上に短小化させる方
法を採用することなく、初期形状における各鍔部の先端
位置と、大径部の端面との間の離間寸法を小さくでき、
これにより第２円筒部を裏返したときに各鍔部が確実に
大径部の端面を覆えることになる。The present invention is characterized in that the connecting portion is connected to an open end of the large diameter portion. In the grommet configured as described above, since the connection portion is connected to the open end of the large-diameter portion, a method of unnecessarily increasing the protrusion size of each flange portion, or unnecessarily increasing the large-diameter portion. Without adopting a method of shortening, it is possible to reduce the distance between the tip position of each flange portion in the initial shape and the end surface of the large diameter portion,
Thereby, when the second cylindrical portion is turned over, each flange portion can surely cover the end surface of the large diameter portion.
【００２１】[0021]
【発明の実施の形態】以下、本発明に係る実施形態を図
面に基づいて詳細に説明する。図１および図２に示すよ
うに、本発明の第１実施形態であるグロメット10は、自
動車の車体パネル11を貫通するようにワイヤーハーネス
Ｗを配設するために、車体パネル11に設けられた取付孔
12にワイヤーハーネスＷを挿通保持した状態で嵌合可能
な反転式のグロメットとされている。取付孔12は円形状
とされ、開口縁部に沿って所定高さのフランジ13が形成
されている。Embodiments of the present invention will be described below in detail with reference to the drawings. As shown in FIGS. 1 and 2, a grommet 10 according to a first embodiment of the present invention is provided on a vehicle body panel 11 in order to arrange a wire harness W so as to penetrate a vehicle body panel 11 of an automobile. Mounting hole
12 is a reversible grommet that can be fitted with the wire harness W inserted and held. The mounting hole 12 has a circular shape, and a flange 13 having a predetermined height is formed along the opening edge.
【００２２】そして、グロメット10は、ワイヤーハーネ
スＷを挿通可能な第１円筒部21と、第１円筒部21の外周
面に設けられた環状の接続部23と、接続部23を介して第
１円筒部21に同軸接続された第２円筒部22と、第２円筒
部22の外周面に沿って設けられた溝部24と、第２円筒部
22の外周面に設けられた複数の鍔部25とを含んで構成さ
れている。溝部24は、取付孔12のフランジ13が嵌合可能
な断面略コ字状とされ、第２円筒部22の周方向に沿って
連続形成されている。このようなグロメット10は、適度
な弾力性，耐水性を有する合成樹脂により、第１円筒部
21，第２円筒部22および各鍔部25が一体形成されてい
る。The grommet 10 has a first cylindrical portion 21 through which the wire harness W can be inserted, an annular connecting portion 23 provided on the outer peripheral surface of the first cylindrical portion 21, and a first connecting portion 23. A second cylindrical portion 22 coaxially connected to the cylindrical portion 21; a groove 24 provided along the outer peripheral surface of the second cylindrical portion 22;
And a plurality of flanges 25 provided on the outer peripheral surface of the arm 22. The groove 24 has a substantially U-shaped cross section in which the flange 13 of the mounting hole 12 can be fitted, and is formed continuously along the circumferential direction of the second cylindrical portion 22. The grommet 10 is made of a synthetic resin having an appropriate elasticity and water resistance, and is made of a first cylindrical portion.
21, the second cylindrical portion 22 and each flange portion 25 are integrally formed.
【００２３】第１円筒部21は、小径部27および大径部28
が同軸接続された段付形状とされている。小径部27は、
ワイヤーハーネスＷの外径寸法に対応した内径寸法を有
しているとともに、内周面に沿って円環状のリブ27Ａが
複数設けられている。この小径部27は、ワイヤーハーネ
スＷが圧入されると、各リブ27Ａが弾性変形しながらワ
イヤーハーネスＷの外周面に密着し、これにより気密性
を維持しながらワイヤーハーネスＷを保持するようにな
っている。The first cylindrical portion 21 has a small diameter portion 27 and a large diameter portion 28.
Are coaxially connected and have a stepped shape. The small diameter part 27 is
It has an inner diameter corresponding to the outer diameter of the wire harness W, and is provided with a plurality of annular ribs 27A along the inner peripheral surface. When the wire harness W is pressed into the small-diameter portion 27, the ribs 27A adhere to the outer peripheral surface of the wire harness W while being elastically deformed, thereby holding the wire harness W while maintaining airtightness. ing.
【００２４】一方、大径部28は、小径部27の内径よりも
大きな内径寸法を有しているとともに、内周面に沿って
円環状のリブ28Ａが複数設けられ、かつ、開放端部に係
合リブ28Ｂが設けられている。係合リブ28Ｂは、断面矩
形状の環状とされ、その軸方向端面が大径部28の端面と
同一面に沿うとともに、大径部28の外周面にのみ段部を
形成して肉厚化することにより設けられている。この大
径部28は、ワイヤーハーネスＷが小径部27に圧入された
後、所定の充填材を充填して固化させることにより、気
密性を維持しながらワイヤーハーネスＷを保持するよう
になっている。On the other hand, the large-diameter portion 28 has an inner diameter larger than the inner diameter of the small-diameter portion 27, is provided with a plurality of annular ribs 28A along the inner peripheral surface, and is provided at the open end. An engagement rib 28B is provided. The engaging rib 28B is formed in an annular shape with a rectangular cross section, and its axial end surface is along the same plane as the end surface of the large diameter portion 28, and a step is formed only on the outer peripheral surface of the large diameter portion 28 to increase the thickness. It is provided by doing. After the wire harness W is press-fitted into the small diameter portion 27, the large diameter portion 28 is filled with a predetermined filler and solidified, thereby maintaining the air tightness and holding the wire harness W. .
【００２５】接続部23は、前述した大径部28の外周面に
おける軸方向略中央部から小径部27の開放端部に向かっ
て拡開する略円錐形状とされ、当該接続部23の母線方向
に沿って複数の凹部30が設けられている。凹部30は、接
続部23の母線を中心として第２円筒部22に向かって拡開
する平面略三角形とされ、四分の一楕円状に形成された
一対の側壁30Ａ，30Ａと、扇状に形成された側壁30Ｂと
が互いに交差配置されていることにより、断面略Ｖ字形
状とされている。The connecting portion 23 has a substantially conical shape that expands from the substantially central portion in the axial direction on the outer peripheral surface of the large-diameter portion 28 toward the open end of the small-diameter portion 27. A plurality of recesses 30 are provided along. The concave portion 30 has a substantially triangular planar shape that expands toward the second cylindrical portion 22 about the generatrix of the connecting portion 23, and has a pair of quarter-elliptical side walls 30A, 30A, and a fan shape. The side walls 30B are arranged so as to intersect with each other, so that they have a substantially V-shaped cross section.
【００２６】すなわち、これらの凹部30は、それぞれの
幅寸法および深さ寸法が第１円筒部21に向かって漸減さ
れて０になるように設けられている。そして、接続部23
は、各凹部30が設けられた箇所の肉厚が他の箇所におけ
る肉厚に略等しくなるように、内周面から山形状に突出
している（図１参照）。また、図３に示すように、これ
らの凹部30は、第１円筒部21の軸線を中心として互いに
90度間隔で設けられている。That is, these recesses 30 are provided such that their width and depth gradually decrease toward the first cylindrical portion 21 to become zero. And the connection part 23
Protrudes from the inner peripheral surface in a mountain shape such that the thickness at the location where each recess 30 is provided is substantially equal to the thickness at the other locations (see FIG. 1). Further, as shown in FIG. 3, these recesses 30 are mutually formed around the axis of the first cylindrical portion 21.
It is provided at 90 degree intervals.
【００２７】第２円筒部22は、取付孔12の開口寸法に対
応した外径寸法を有しているとともに、小径部27の外径
寸法および大径部28の外形寸法よりも大きな内径寸法を
有している。この第２円筒部22は、大径部28の軸方向略
中央部に接続部23を介して接続されているため、所定間
隔を空けて大径部28の軸方向略中央部から小径部27側端
部までを収容するように、大径部28に対して略入れ子状
に配置されている。The second cylindrical portion 22 has an outer diameter corresponding to the opening size of the mounting hole 12 and has an inner diameter larger than the outer diameter of the small diameter portion 27 and the outer diameter of the large diameter portion 28. Have. Since the second cylindrical portion 22 is connected to the substantially central portion in the axial direction of the large diameter portion 28 via the connecting portion 23, the second cylindrical portion 22 is spaced apart from the substantially central portion in the axial direction of the large diameter portion 28 by a predetermined distance. The large-diameter portion 28 is substantially nested so as to accommodate the side end portion.
【００２８】鍔部25は、溝部24と接続部23との間から大
径部28の開放端部に向かって拡開する仮想的な錐面に沿
って突設され、先端に向かう先細り形状とされている。
これらの鍔部25は、第２円筒部22の開放端部側を向く鍔
面25Ａに凸部26が設けられている。図２に示すように、
凸部26は、鍔部25の先端部を略直角に折り曲げたように
形成することにより、先端に向かう先細り形状とされて
いる。The flange 25 is provided along an imaginary conical surface expanding toward the open end of the large-diameter portion 28 from between the groove 24 and the connecting portion 23, and has a tapered shape toward the tip. Have been.
These flanges 25 are provided with convex portions 26 on a flange surface 25A facing the open end side of the second cylindrical portion 22. As shown in FIG.
The protruding portion 26 is formed by bending the distal end portion of the flange portion 25 at a substantially right angle so as to be tapered toward the distal end.
【００２９】次に、このようなグロメット10を用いたワ
イヤーハーネスＷの配索手順を説明する。まず、図４に
示すように、ワイヤーハーネスＷをグロメット10の第１
円筒部21に挿通し、大径部28に充填材29を充填させて固
化させた後、第１円筒部21の小径部27とワイヤーハーネ
スＷとを適宜な粘着テープＴにより巻回することによ
り、小径部27にワイヤーハーネスＷを固定しておく。Next, a procedure for arranging the wire harness W using the grommet 10 will be described. First, as shown in FIG.
After passing through the cylindrical portion 21 and filling and solidifying the filler 29 in the large diameter portion 28, the small diameter portion 27 of the first cylindrical portion 21 and the wire harness W are wound with an appropriate adhesive tape T. The wire harness W is fixed to the small diameter portion 27 in advance.
【００３０】そして、第１円筒部21に対して接続部23の
小径端部を支点として、第２円筒部22を内周面が外方を
向くように裏返す（図４の状態）。この際、グロメット
10は、初期形状において各鍔部25の先端部が大径部28の
開放端部に対して比較的近接配置されているため、第２
円筒部22が大径部28の開放端部側を覆うとともに、初期
形状において大径部28の開放端部側を向く鍔面25Ｂがそ
れぞれ大径部28の端面に対して対面するように各鍔部25
が略 180度変向し、かつ、初期形状における第２円筒部
22の開放端部側の外周面が擂り鉢面に変形する。Then, the second cylindrical portion 22 is turned over with the small-diameter end of the connecting portion 23 as a fulcrum with respect to the first cylindrical portion 21 so that the inner peripheral surface faces outward (the state of FIG. 4). At this time, grommet
10 is the second shape because the distal end of each flange 25 is relatively close to the open end of the large diameter portion 28 in the initial shape.
While the cylindrical portion 22 covers the open end side of the large diameter portion 28, each flange surface 25B facing the open end side of the large diameter portion 28 in the initial shape faces the end surface of the large diameter portion 28, respectively. Tsubabe 25
Turns approximately 180 degrees, and the second cylindrical part in the initial shape
The outer peripheral surface on the open end side of 22 is transformed into a mortar surface.
【００３１】なお、大径部28は、その開放端部に設けら
れた係合リブ28Ｂが補強材となっているため、変形した
第２円筒部22に覆われても縮径変形する虞れが少ない。
また、各鍔部25の凸部26は、ワイヤーハーネスＷの外側
面に沿うとともに、大径部28の端面に対して離れる方向
に向けて配向される。Since the large-diameter portion 28 has a reinforcing member provided with the engaging rib 28B provided at the open end thereof, there is a possibility that the large-diameter portion 28 may be reduced in diameter even if it is covered by the deformed second cylindrical portion 22. Less is.
The convex portion 26 of each flange 25 is oriented along the outer surface of the wire harness W and in a direction away from the end surface of the large-diameter portion 28.
【００３２】さらに、接続部23は、第２円筒部22の反転
に伴って、周方向に引き伸ばされるような拡径変形が生
ずるが、各凹部30が断面形状を拡大するように変形する
ことにより、当該接続部23の拡径変形が全域に及ばず、
これにより接続部23の外周面が平坦に形成されている場
合に比較して、第２円筒部22を初期形状から反転させる
作業を容易に行える。Further, the connecting portion 23 undergoes a radial expansion deformation such that the connecting portion 23 is stretched in the circumferential direction as the second cylindrical portion 22 is inverted. However, the diameter expansion deformation of the connection portion 23 does not reach the entire area,
Thereby, the operation of inverting the second cylindrical portion 22 from the initial shape can be easily performed as compared with the case where the outer peripheral surface of the connection portion 23 is formed flat.
【００３３】次に、ワイヤーハーネスＷを取付孔12に挿
通させてから、第２円筒部22の外周面が変形した擂り鉢
面を取付孔12のフランジ13に対して円形に線接触させる
ことにより、取付孔12に対してワイヤーハーネスＷが確
実に同一軸線上に配置する。そして、このままグロメッ
ト10を車体パネル11に向けて押し付けると、フランジ13
に押圧された第２円筒部22の開放端部が初期形状への復
元を開始するとともに、第２円筒部22の開放端部に対し
て各鍔部25の凸部26が相対的に突出して取付孔12に進入
する。この際、グロメット10は、各鍔部25の凸部26、換
言すれば各鍔部25の先端部が他の部材よりも先に取付孔
12に進入するため、大径部28の外周面と各鍔部25との間
に取付孔12のフランジ13が相対的に案内される虞れがな
い。Next, after the wire harness W is inserted through the mounting hole 12, the mortar surface, whose outer peripheral surface of the second cylindrical portion 22 is deformed, is brought into circular contact with the flange 13 of the mounting hole 12 by circular line contact. The wire harness W is securely arranged on the same axis with respect to the mounting hole 12. Then, when the grommet 10 is pressed toward the body panel 11 as it is, the flange 13
The open end of the second cylindrical portion 22 pressed to start restoring to the initial shape, and the convex portion 26 of each flange 25 projects relatively to the open end of the second cylindrical portion 22. It enters the mounting hole 12. At this time, the grommet 10 has the convex portion 26 of each flange 25, in other words, the tip of each flange 25 has a mounting hole before the other members.
Since the flange 13 is inserted into the flange 12, there is no fear that the flange 13 of the mounting hole 12 is relatively guided between the outer peripheral surface of the large diameter portion 28 and each flange 25.
【００３４】続いて、グロメット10を図４中左方に向け
て更に押し、各鍔部25の基端部が取付孔12を通過する位
置まで移動すると、各鍔部25がそれぞれ第２円筒部22に
対する突出角度を初期状態に復元するような強い反発力
が解放される。従って、グロメット10は、各鍔部25を拡
開させながら自力で図中左方に移動するとともに、溝部
24が取付孔12のフランジ13に嵌合する（図１の状態）。Subsequently, the grommet 10 is further pushed leftward in FIG. 4 to move the base end of each flange 25 to a position where the flange 25 passes through the mounting hole 12. The strong repulsive force that restores the projection angle to 22 to the initial state is released. Therefore, the grommet 10 moves to the left in the figure by itself while expanding the flanges 25, and
24 fits into the flange 13 of the mounting hole 12 (the state of FIG. 1).
【００３５】この際、各鍔部25は、それぞれの鍔面25Ａ
に凸部26が設けられているため、拡開動作に伴って、各
凸部26が取付孔12の開口縁部に係合し、これにより取付
孔12に対するワイヤーハーネスＷの同軸状態が維持され
る。さらに、接続部23は、第２円筒部22が初期形状に復
元するにあたって、再び周方向に引き伸ばされるような
拡径変形が生ずるが、各凹部30が断面形状を拡大するよ
うに変形することにより、当該接続部23の拡径変形が全
域に及ばず、これにより接続部23の外周面が平坦に形成
されている場合に比較して、第２円筒部22を初期形状に
復元させる作業を容易に行える。At this time, each flange 25 is provided with a respective flange surface 25A.
Since the projections 26 are provided, each projection 26 engages with the opening edge of the mounting hole 12 with the expanding operation, whereby the coaxial state of the wire harness W with respect to the mounting hole 12 is maintained. You. Furthermore, when the second cylindrical portion 22 is restored to the initial shape, the connecting portion 23 undergoes a radial expansion such that it is stretched in the circumferential direction again, but the concave portions 30 are deformed so as to enlarge the cross-sectional shape. The work of restoring the second cylindrical portion 22 to the initial shape is easier than in the case where the diameter expansion deformation of the connecting portion 23 does not reach the entire area, thereby making the outer peripheral surface of the connecting portion 23 flat. Can be done.
【００３６】前述したグロメット10は、第２円筒部22お
よび大径部28の少なくとも一部同士が互いに略入れ子状
に配置されるように、接続部23が大径部28の外周面に接
続されているため、例えば小径部27および大径部28の境
界部分に接続部23が接続されている場合に比較して、初
期形状において各鍔部25の先端部が大径部28の開放端部
に対して比較的近接配置されている。従って、このよう
なグロメット10によれば、大径部28が充填剤29を充填可
能な直径寸法を有していても、各鍔部25の突出寸法を大
きくする方法や、あるいは大径部28を短小化させる方法
を採用することなく、第２円筒部22を裏返したときに大
径部28の端面を各鍔部25が覆うことにより、他の部材よ
りも先に各鍔部25が取付孔12に進入し、これによりワイ
ヤーハーネスＷを容易、かつ、確実に配索できる。In the grommet 10 described above, the connecting portion 23 is connected to the outer peripheral surface of the large diameter portion 28 such that at least a part of the second cylindrical portion 22 and the large diameter portion 28 are arranged substantially nested with each other. Therefore, for example, as compared with the case where the connecting portion 23 is connected to the boundary portion between the small diameter portion 27 and the large diameter portion 28, the tip end of each flange 25 in the initial shape is the open end of the large diameter portion 28. Relatively close to each other. Therefore, according to such a grommet 10, even if the large-diameter portion 28 has a diameter dimension that can be filled with the filler 29, a method of increasing the projecting dimension of each flange portion 25, or the large-diameter portion 28 Each flange 25 is attached before the other members by covering the end face of the large diameter portion 28 when the second cylindrical portion 22 is turned over without adopting a method of shortening the length of the second cylindrical portion 22. The wire harness W enters the hole 12 and the wiring harness W can be easily and reliably arranged.
【００３７】また、このグロメット10によれば、第２円
筒部22を裏返したとき、各鍔部25の鍔面25Ａにそれぞれ
設けられた凸部26が大径部28に対して離れる方向を向く
ため、これらの凸部26が取付孔12に対する案内部材とし
て機能し、これにより取付孔12に対して各鍔部25が確
実、かつ、同時に進入できる。Further, according to the grommet 10, when the second cylindrical portion 22 is turned over, the convex portions 26 provided on the flange surfaces 25A of the respective flange portions 25 face the direction away from the large diameter portion 28. Therefore, these convex portions 26 function as guide members for the mounting holes 12, whereby the respective flange portions 25 can reliably and simultaneously enter the mounting holes 12.
【００３８】さらに、このようなグロメット10によれ
ば、大径部28における開放端部の周方向に沿って係合リ
ブ28Ｂが設けられているため、裏返された第２円筒部22
が大径部28の外周面を覆っても、係合リブ28Ｂが補強材
となって大径部28における開放端部が縮径するような変
形を防止し、これにより大径部28の端面に対する各鍔部
25の被覆状態を維持できる。Further, according to such a grommet 10, since the engagement rib 28B is provided along the circumferential direction of the open end of the large diameter portion 28, the inverted second cylindrical portion 22 is provided.
Even if the outer peripheral surface of the large diameter portion 28 is covered, the engaging rib 28B serves as a reinforcing material to prevent deformation such that the open end of the large diameter portion 28 is reduced in diameter. For each collar
25 coating conditions can be maintained.
【００３９】特に、このグロメット10によれば、係合リ
ブ28Ｂの端面が大径部28の端面と同一面に沿うように設
けられているため、大径部28における中央部の肉厚寸法
よりも端面の幅寸法を大きくでき、これにより各鍔部25
との重複寸法を大きくできる。従って、このグロメット
10によれば、係合リブ28Ｂの端面が大径部28の端面と同
一面に沿うように設けられていない場合に比較して、大
径部28の開放端部に対する各鍔部25の係合状態を良好に
維持でき、第２円筒部22が裏返された状態で保管，搬送
しても、振動，衝撃等により意図しない初期形状への復
元を少なくできる。In particular, according to the grommet 10, since the end face of the engaging rib 28B is provided along the same plane as the end face of the large-diameter portion 28, the thickness of the central portion of the large-diameter portion 28 is reduced. The width of the end face can also be increased, which
And the overlapping dimension can be increased. Therefore, this grommet
According to 10, the engagement of each flange 25 with the open end of the large diameter portion 28 is smaller than when the end surface of the engagement rib 28B is not provided along the same surface as the end surface of the large diameter portion 28. Even if the second cylindrical portion 22 is stored and transported with the second cylindrical portion 22 turned upside down, the unintended initial shape due to vibration, impact, and the like can be reduced.
【００４０】図５および図６には、本発明に係る第２実
施形態が示されている。なお、以下に説明する第２実施
形態において、既に図１ないし図４において説明した部
材等については、図中に同一符号あるいは相当符号を付
すことにより説明を簡略化あるいは省略し、主に前述し
た第１実施形態に対する相違点を説明する。FIGS. 5 and 6 show a second embodiment according to the present invention. In the second embodiment described below, the members and the like already described in FIG. 1 to FIG. 4 are denoted by the same reference numerals or corresponding reference numerals in the drawings to simplify or omit the description, and mainly described above. Differences from the first embodiment will be described.
【００４１】第２実施形態のグロメット40において、第
１円筒部51を構成する大径部58は、充填剤を充填してワ
イヤーハーネスＷを保持するという機能を維持できる最
短軸方向寸法を有し、その開放端部の外周面に接続部53
が接続されている。従って、第２円筒部52および大径部
58は、互いに略入れ子状に配置されている。In the grommet 40 of the second embodiment, the large-diameter portion 58 constituting the first cylindrical portion 51 has the shortest axial dimension that can maintain the function of filling the filler and holding the wire harness W. Connecting portion 53 on the outer peripheral surface of the open end.
Is connected. Therefore, the second cylindrical portion 52 and the large diameter portion
58 are substantially nested with each other.
【００４２】また、このグロメット40は、各鍔部55の突
出寸法が第１実施形態の鍔部に比較して若干大きく設定
されていて、第２円筒部52を裏返したとき、各鍔部55の
鍔面が略90度変向する90度反転式のグロメットとされて
いる。さらに、このグロメット40は、接続部53に薄肉部
41が設けられているとともに、溝部54における接続部53
側を向く側面54Ａと、第２円筒部52の外周面とが交差し
てなる稜線60に出隅部61および切欠部62が設けられてい
る。In the grommet 40, the projecting dimension of each flange 55 is set slightly larger than that of the first embodiment, and when the second cylindrical portion 52 is turned over, each flange 55 The grommet is a 90-degree inverting grommet whose collar surface turns approximately 90 degrees. Further, the grommet 40 has a thin portion at the connecting portion 53.
41, and a connecting portion 53 in the groove portion 54.
A protruding corner 61 and a notch 62 are provided on a ridgeline 60 where the side surface 54A facing the side and the outer peripheral surface of the second cylindrical portion 52 intersect.
【００４３】薄肉部41は、接続部53の内周面および外周
面においてそれぞれ周方向に連続する溝41Ａ，41Ｂを形
成することにより設けられている。溝41Ａ，41Ｂは、断
面略半円形状とされ、接続部53の軸線に対して直交する
面に沿うとともに、互いに対応する位置に形成されてい
る。The thin portion 41 is provided by forming grooves 41A and 41B that are continuous in the circumferential direction on the inner peripheral surface and the outer peripheral surface of the connecting portion 53, respectively. The grooves 41A and 41B have a substantially semicircular cross section, and are formed at positions corresponding to each other along a plane orthogonal to the axis of the connecting portion 53.
【００４４】切欠部62は、側面54Ａおよび第２円筒部52
の外周面に対してそれぞれ所定の角度で交差する円錐面
とされ、第２円筒部52の周方向に沿って所定長さ連続し
ている。そして、出隅部61および切欠部62は、互いに異
なる周方向長さを有し、第２円筒部52の周方向に沿って
交互に配置されている。The notch 62 has a side surface 54A and a second cylindrical portion 52.
Are formed as conical surfaces that intersect with the outer peripheral surface at a predetermined angle, and are continuous for a predetermined length along the circumferential direction of the second cylindrical portion 52. The protruding corners 61 and the notches 62 have different circumferential lengths, and are alternately arranged along the circumferential direction of the second cylindrical portion 52.
【００４５】このようなグロメット40によれば、大径部
58の開放端部に接続部53を接続することにより、第２円
筒部52および大径部58が互いに略入れ子状に配置されて
いるため、前述した第１実施形態のグロメットと同様
に、初期形状において各鍔部55の先端部が大径部58の開
放端部に対して比較的近接配置されている。従って、図
６に示すように、このグロメット40によれば、接続部53
の小径端部を支点として第２円筒部52を裏返せば、各鍔
部55の先端が大径部58に干渉することなく、ワイヤーハ
ーネスＷの外側面に接触して大径部58の端面を覆うとと
もに、他の部材よりも先に各鍔部55が取付孔12に対して
進入可能となり、前述した第１実施形態のグロメットと
同様に、ワイヤーハーネスＷの配索作業を容易、かつ、
確実に行える。According to such a grommet 40, the large diameter portion
By connecting the connecting portion 53 to the open end of the 58, the second cylindrical portion 52 and the large-diameter portion 58 are substantially nested with each other. In the shape, the distal end of each flange 55 is disposed relatively close to the open end of the large diameter portion 58. Therefore, as shown in FIG. 6, according to the grommet 40, the connecting portion 53
By turning the second cylindrical portion 52 upside down with the small diameter end as a fulcrum, the tip of each flange 55 contacts the outer surface of the wire harness W without interfering with the large diameter portion 58, and the end surface of the large diameter portion 58 While covering, each flange portion 55 can enter the mounting hole 12 earlier than the other members, and the wiring work of the wire harness W can be easily performed, similarly to the grommet of the first embodiment described above, and
It can be done reliably.
【００４６】そして、このグロメット40によれば、大径
部58の開放端部に接続部53が接続されているため、換言
すれば接続部53の小径端部から大径部58が突出していな
いため、車体パネル11の裏面側に狭小空間しか確保でき
ない場合であっても、前述した第１実施形態のグロメッ
トに比較して、ワイヤーハーネスＷの配索作業を容易、
かつ、確実に行える。According to the grommet 40, the connecting portion 53 is connected to the open end of the large diameter portion 58. In other words, the large diameter portion 58 does not protrude from the small diameter end of the connecting portion 53. Therefore, even when only a small space can be secured on the back surface side of the vehicle body panel 11, the wiring harness W can be easily routed compared to the grommet of the first embodiment described above.
And it can be performed reliably.
【００４７】また、このグロメット40によれば、薄肉部
41により接続部53における特定部位の強度が他の部位よ
りも意図的に低くなっているため、内周面が外方を向く
ように第２円筒部52を反転させると、薄肉部41を境界と
して接続部53が折り返される（図７参照）。この際、こ
のグロメット40は、接続部53の軸線に対して直交する面
に沿う溝41Ａ，41Ｂにより薄肉部41が設けられているた
め、第１円筒部51に対して第２円筒部52が傾いて反転す
る虞れはない。According to the grommet 40, the thin portion
Since the strength of the specific portion of the connecting portion 53 is intentionally lower than that of the other portion by the connection portion 41, when the second cylindrical portion 52 is inverted so that the inner peripheral surface faces outward, the thin portion 41 is bounded. The connection portion 53 is folded back (see FIG. 7). At this time, since the grommet 40 is provided with the thin portion 41 by the grooves 41A and 41B along the plane orthogonal to the axis of the connecting portion 53, the second cylindrical portion 52 is formed with respect to the first cylindrical portion 51. There is no danger of tilting and reversing.
【００４８】また、このグロメット40は、接続部53にお
ける薄肉部41の強度が他の部位よりも意図的に低くなっ
ているため、換言すれば接続部53に薄肉部41が設けられ
ていない場合に比較して、接続部53が初期形状に復元し
ようとする弾性反発力が弱い。すなわち、このグロメッ
ト40は、接続部53に薄肉部41が設けられていない場合に
比較して、第２円筒部52を反転させた状態を良好に維持
でき、衝撃等が加えられても意図せず第２円筒部52が初
期形状に復元する虞れが少ない。In the grommet 40, since the strength of the thin portion 41 in the connecting portion 53 is intentionally lower than that of the other portions, in other words, when the thin portion 41 is not provided in the connecting portion 53, The elastic repulsive force of the connecting portion 53 for restoring the initial shape is weaker than that of the first embodiment. That is, compared to the case where the thin portion 41 is not provided in the connecting portion 53, the grommet 40 can favorably maintain the inverted state of the second cylindrical portion 52, and can be intended even if an impact or the like is applied. In addition, there is little possibility that the second cylindrical portion 52 will be restored to the initial shape.
【００４９】従って、前述した第２実施形態のグロメッ
ト40によれば、第１円筒部51に対して適切に第２円筒部
52を反転させた状態で出荷，保管できるとともに、車体
パネル11に取り付けられるまで第２円筒部52を反転させ
た状態を維持できる。特に、この第２実施形態のグロメ
ット40によれば、薄肉部41が溝41Ａ，41Ｂにより設けら
れているため、薄肉部41として例えば接続部53の周方向
に沿って多数の凹部を所定間隔で設けた場合に比較し
て、接続部53における境界を確実に規定できる。Therefore, according to the grommet 40 of the second embodiment described above, the second cylindrical portion 51
Shipment and storage can be performed with the 52 inverted, and the second cylindrical portion 52 can be maintained in an inverted state until it is attached to the vehicle body panel 11. In particular, according to the grommet 40 of the second embodiment, since the thin portion 41 is provided by the grooves 41A and 41B, a large number of recesses are formed at predetermined intervals along the circumferential direction of the connecting portion 53 as the thin portion 41, for example. The boundary in the connection portion 53 can be defined more reliably than in the case where it is provided.
【００５０】さらに、このようなグロメット40によれ
ば、溝部54の稜線60に出隅部61および切欠部62が設けら
れているため、第２円筒部52が反転した状態で出荷，保
管される場合、断面略Ｕ字状の溝部54が断面略Δ字形状
に変形されることにより稜線60が対向する他の稜線に圧
接されていても、稜線60の出隅部61のみが他の稜線に対
して密着し、他の稜線と切欠部と62の間に空隙が確保さ
れる（図７参照）。すなわち、このグロメット40によれ
ば、車体パネル11に対する取付作業にあたって、溝部54
の稜線60に切欠部62が設けられていない場合に比較し
て、溝部54の稜線同士が容易に離反することにより、第
２円筒部52を容易に初期形状に復元できる。Further, according to such a grommet 40, since the protruding corner 61 and the notch 62 are provided on the ridge 60 of the groove 54, the grommet 40 is shipped and stored with the second cylindrical portion 52 inverted. In such a case, even when the ridge 60 is pressed against another opposing ridge by deforming the groove 54 having a substantially U-shaped cross section into a substantially Δ-shaped cross section, only the protruding corner 61 of the ridge 60 is connected to the other ridge. A gap is secured between the other ridge line and the cutout portion 62 (see FIG. 7). That is, according to the grommet 40, the groove 54
The second cylindrical portion 52 can be easily restored to the initial shape by easily separating the ridge lines of the groove portion 54 as compared with the case where the notch portion 62 is not provided in the ridge line 60 of the second cylindrical portion 52.
【００５１】また、本発明は、前述した各実施形態に限
定されるものでなく、適宜な変形，改良等が可能であ
り、前述した各実施形態において例示した取付板，取付
孔，第１円筒部，接続部，第２円筒部，溝部，鍔部，係
合部，リブ等の材質，形状，寸法，形態，数，配置個所
等は本発明を達成できるものであれば任意であり、限定
されない。The present invention is not limited to the above-described embodiments, but can be appropriately modified and improved. The mounting plate, the mounting hole, the first cylinder, and the like exemplified in the above-described embodiments. The material, shape, dimensions, form, number, location, and the like of the portion, the connection portion, the second cylindrical portion, the groove portion, the flange portion, the engagement portion, the rib, and the like are arbitrary as long as the present invention can be achieved. Not done.
【００５２】[0052]
【発明の効果】以上、説明したように、本発明によれ
ば、請求項１に記載したように、第２円筒部および大径
部の少なくとも一部同士が互いに略入れ子状に配置され
るように、接続部が大径部の外周面に接続されているた
め、大径部が充填剤を充填可能であっても、各鍔部の突
出寸法を必要以上に大きくする方法や、あるいは大径部
を必要以上に短小化させる方法を採用することなく、第
２円筒部を裏返したときに各鍔部が確実に大径部の端面
を覆うことにより、長尺部材を容易、かつ、確実に配索
できることになる。As described above, according to the present invention, at least a part of the second cylindrical portion and the large-diameter portion are substantially nested with each other. Since the connecting portion is connected to the outer peripheral surface of the large-diameter portion, even if the large-diameter portion can be filled with a filler, a method of unnecessarily increasing the protrusion size of each flange portion, or Without adopting a method of shortening the portion unnecessarily, each flange portion reliably covers the end surface of the large diameter portion when the second cylindrical portion is turned over, so that the long member can be easily and reliably formed. It will be able to be routed.
【００５３】また、本発明によれば、請求項２に記載し
たように、第２円筒部を裏返したときに、各鍔部の鍔面
から厚み方向に沿って突出する凸部が大径部の端面に対
して離れる方向を向くため、各凸部が取付孔に対する案
内部材として機能し、これにより取付孔に対して各鍔部
が確実、かつ、同時に進入できる。According to the present invention, as described in claim 2, when the second cylindrical portion is turned over, the convex portion projecting along the thickness direction from the flange surface of each flange portion has a large diameter portion. Since each of the protrusions functions as a guide member for the mounting hole, each flange can reliably and simultaneously enter the mounting hole.
【００５４】さらに、本発明によれば、請求項３に記載
したように、大径部の開放端部に設けられた係合リブの
端面が大径部の端面と同一面に沿って配置されているた
め、第２円筒部を裏返したときに各鍔部が大径部を覆っ
ても、大径部の開放端部が縮径変形しない強度を得られ
るとともに、係合リブの端面が大径部の端面と同一面に
沿って配置されていない場合に比較して、第２円筒部を
裏返した状態で保管，搬送した場合、振動，衝撃が加え
られても、長尺部材の配索作業前に意図せず初期形状へ
復元する虞れを少なくできる。Further, according to the present invention, the end surface of the engaging rib provided at the open end of the large diameter portion is disposed along the same plane as the end surface of the large diameter portion. Therefore, even if each flange covers the large-diameter portion when the second cylindrical portion is turned over, the open end of the large-diameter portion can obtain strength that does not reduce the diameter, and the end surface of the engagement rib is large. Compared to the case where the second cylindrical portion is not placed along the same surface as the end surface of the diameter portion, when the second cylindrical portion is stored and transported in a state in which the second cylindrical portion is turned over, even if vibration and impact are applied, the long member is routed. The risk of unintentionally restoring to the initial shape before the operation can be reduced.
【００５５】そして、本発明によれば、請求項４に記載
したように、接続部が大径部の開放端部に接続されてい
るため、取付板の裏面側に狭小空間しか確保できない場
合であっても、長尺部材の配索作業を容易、かつ、確実
に行える。According to the present invention, since the connecting portion is connected to the open end of the large-diameter portion, only a small space can be secured on the back side of the mounting plate. Even if it is, the work of arranging the long member can be easily and reliably performed.
【図１】本発明に係る第１実施形態のグロメットを示す
断面図である。FIG. 1 is a sectional view showing a grommet according to a first embodiment of the present invention.
【図２】図１のグロメットの全体斜視図である。FIG. 2 is an overall perspective view of the grommet of FIG.
【図３】図１のグロメットの正面図である。FIG. 3 is a front view of the grommet shown in FIG. 1;
【図４】図１のグロメットを反転させた状態を示す断面
図である。FIG. 4 is a sectional view showing a state where the grommet of FIG. 1 is inverted.
【図５】本発明に係る第２実施形態のグロメットを示す
断面図である。FIG. 5 is a sectional view showing a grommet according to a second embodiment of the present invention.
【図６】図５のグロメットの全体斜視図である。FIG. 6 is an overall perspective view of the grommet of FIG.
【図７】図５のグロメットを反転させた状態を示す断面
図である。FIG. 7 is a sectional view showing a state where the grommet of FIG. 5 is inverted.
10，40 グロメット 11 車体パネル（取付板） 12 取付孔 21，51 第１円筒部 22，52 第２円筒部 23，53 接続部 24，54 溝部 25，55 鍔部 26 凸部 27，57小径部 28，58 大径部 29 充填剤 28Ｂ 係合リブ Ｗ ワイヤーハーネス（長尺部材） 10, 40 Grommet 11 Body panel (mounting plate) 12 Mounting hole 21, 51 First cylindrical part 22, 52 Second cylindrical part 23, 53 Connection part 24, 54 Groove part 25, 55 Flange part 26 Convex part 27, 57 Small diameter part 28,58 Large diameter part 29 Filler 28B Engagement rib W Wire harness (long member)
Claims (4)
貫通保持するために、前記長尺部材を挿通可能な可能な
第１円筒部と、前記第１円筒部の外周面に設けられた環
状の接続部を介して接続された第２円筒部と、前記第２
円筒部の外周面に沿って設けられた溝部と、前記第２円
筒部の外周面における前記溝部と前記接続部との間から
放射状に設けられた複数の鍔部とを有し、 前記第１円筒部に充填された充填剤により前記長尺部材
を前記第１円筒部に保持させた後、前記第２円筒部を内
周面が外方を向くように裏返すことにより、前記各鍔部
の先端部を集合させて前記取付孔に挿入し、次いで前記
第２円筒部を初期形状に復元させることにより前記取付
孔の開口縁部に前記溝部を嵌合させるグロメットであっ
て、 前記第１円筒部が、前記長尺部材を圧入可能な小径部
と、前記小径部に連続するとともに充填剤を充填可能な
大径部とを同軸接続した段付形状であるとともに、 前記第２円筒部の端面および前記大径部の端面が互いに
離れる方向を向き、かつ、前記第２円筒部および前記大
径部の少なくとも一部同士が互いに略入れ子状に配置さ
れるように、前記接続部が前記大径部の外周面に接続さ
れていることにより、前記第２円筒部を裏返したとき
に、前記各鍔部が前記大径部の端面を被覆可能であるこ
とを特徴とするグロメット。1. A first cylindrical portion through which the long member can be inserted and an outer peripheral surface of the first cylindrical portion for holding the long member through a mounting hole formed in the mounting plate. A second cylindrical portion connected through the formed annular connection portion;
A groove provided along the outer peripheral surface of the cylindrical portion, and a plurality of flanges radially provided from between the groove and the connection portion on the outer peripheral surface of the second cylindrical portion; After the long member is held in the first cylindrical portion by the filler filled in the cylindrical portion, the second cylindrical portion is turned upside down such that the inner peripheral surface faces outward. A grommet for assembling a tip portion, inserting the tip portion into the mounting hole, and then restoring the second cylindrical portion to an initial shape so that the groove portion is fitted to an opening edge of the mounting hole; The portion has a stepped shape in which a small diameter portion capable of press-fitting the long member and a large diameter portion continuous with the small diameter portion and capable of being filled with a filler are coaxially connected, and an end surface of the second cylindrical portion. And the end faces of the large-diameter portion face away from each other, and The connection portion is connected to the outer peripheral surface of the large-diameter portion so that at least a part of the second cylindrical portion and the large-diameter portion are at least partially arranged in a mutually nested manner. A grommet, characterized in that each of the flanges can cover an end surface of the large-diameter portion when turned upside down.
み方向に沿って突出する凸部を有し、前記第２円筒部を
裏返したときに、前記各凸部の先端が前記大径部の端面
に対して離れる方向を向くことを特徴とする請求項１に
記載したグロメット。2. A protruding portion protruding from a flange surface at a front end portion of each of the flange portions along a thickness direction, and when the second cylindrical portion is turned over, the front end of each of the convex portions has the large diameter. The grommet according to claim 1, wherein the grommet faces away from an end face of the portion.
沿って設けられた係合リブを有し、前記係合リブの端面
が前記大径部の端面と同一面に沿って配置されているこ
とを特徴とする請求項１または請求項２に記載したグロ
メット。3. An engaging rib provided along a circumferential direction of an open end of the large-diameter portion, wherein an end surface of the engaging rib is disposed along a same plane as an end surface of the large-diameter portion. The grommet according to claim 1 or 2, wherein:
続されていることを特徴とする請求項１に記載したグロ
メット。4. The grommet according to claim 1, wherein the connection portion is connected to an open end of the large diameter portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000002733A JP3813778B2 (en) | 2000-01-11 | 2000-01-11 | Grommet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000002733A JP3813778B2 (en) | 2000-01-11 | 2000-01-11 | Grommet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2001195938A true JP2001195938A (en) | 2001-07-19 |
| JP3813778B2 JP3813778B2 (en) | 2006-08-23 |
Family
ID=18531802
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000002733A Expired - Fee Related JP3813778B2 (en) | 2000-01-11 | 2000-01-11 | Grommet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3813778B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007066683A (en) * | 2005-08-31 | 2007-03-15 | Yazaki Corp | Grommet |
-
2000
- 2000-01-11 JP JP2000002733A patent/JP3813778B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007066683A (en) * | 2005-08-31 | 2007-03-15 | Yazaki Corp | Grommet |
| JP4668741B2 (en) * | 2005-08-31 | 2011-04-13 | 矢崎総業株式会社 | Grommet |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3813778B2 (en) | 2006-08-23 |
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