JP2005210883A

JP2005210883A - Grommet

Info

Publication number: JP2005210883A
Application number: JP2004257024A
Authority: JP
Inventors: Hidetoshi Sato; 秀俊佐藤; Emi Soshino; 恵美曽篠; Tsutomu Ishimaru; 勉石丸
Original assignee: Yazaki Corp
Current assignee: Yazaki Corp
Priority date: 2003-12-25
Filing date: 2004-09-03
Publication date: 2005-08-04

Abstract

<P>PROBLEM TO BE SOLVED: To provide a grommet capable of facilitating attachment to a panel. <P>SOLUTION: This grommet 1 is attached at a hole 3 of a panel 2. The grommet 1 has a diameter-enlarged cylindrical portion 11. A locking recessed portion 13 is provided at the other end portion 11b, on the large-diameter side of the diameter enlarged cylindrical portion 11. The locking recessed portion 13 is locked at the hole 3 of the panel 2. The locking recessed portion 13 is formed by a first wall 14, near the other end portion 11b of the diameter-enlarged cylindrical portion 11 and a second wall 15 near one end portion 11a facing the first wall 14. A recess 19 in a recessed form is formed, extending from a surface 15a of the second wall 15 over the whole circumference of the diameter-enlarged cylindrical portion 11. The recess 19 extends toward the outer surface 11a of the diameter-enlarged cylindrical portion 11 from the surface 15a of the second wall 15. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

本発明は、車両としての自動車などの車体を構成するパネルに取り付けられかつ内側にワイヤハーネスを通すグロメットに関する。 The present invention relates to a grommet that is attached to a panel constituting a vehicle body such as an automobile as a vehicle and that passes a wire harness inside.

車両としての自動車などの車体を構成するパネルに設けられた孔内にワイヤハーネスを通し、かつ前記ワイヤハーネスに水などの水分（液体）が付着することを防止するために、例えば、図３１に示すような従来から種々のグロメット１０１（例えば、特許文献１参照）を用いてきた。図３１に例示されたグロメット１０１は、筒部１０２と、筒部１０２に連なり一端から他端に向かうにしたがって徐々に内外径が拡大する拡径筒部１０３と、この拡径筒部１０３の全周に亘って設けられかつ前記パネルの穴に係止する係止凹部１０４とを一体に備え、ゴムなどからなる。 In order to pass a wire harness through a hole provided in a panel constituting a vehicle body such as an automobile as a vehicle and prevent moisture (liquid) such as water from adhering to the wire harness, for example, FIG. Conventionally, various grommets 101 (see, for example, Patent Document 1) have been used. A grommet 101 illustrated in FIG. 31 includes a cylindrical portion 102, an enlarged diameter cylindrical portion 103 that is connected to the cylindrical portion 102, and whose inner and outer diameters gradually increase from one end to the other end. It is integrally provided with a locking recess 104 that is provided over the periphery and that locks into the hole of the panel, and is made of rubber or the like.

前述したグロメット１０１は、拡径筒部１０３内にワイヤハーネスを通し、筒部１０２及びこの拡径筒部１０３の小径側の端からパネルの孔内に挿入される。拡径筒部１０３が縮径（内外径が縮小することを示す）する方向に一旦弾性変形した後、係止凹部１０４が孔内に係止して、前述したパネルに取り付けられる。このように、従来のグロメット１０１は、拡径筒部１０３を縮径する方向に一旦弾性変形して、パネルに取り付けられてきた。
特開平７−１６３０３４号公報 The aforementioned grommet 101 is inserted into the hole of the panel from the end of the cylindrical portion 102 and the small diameter side of the enlarged diameter cylindrical portion 103 through the wire harness through the enlarged diameter cylindrical portion 103. After the diameter-enlarging cylindrical portion 103 is elastically deformed in the direction of reducing the diameter (indicating that the inner and outer diameters are reduced), the locking recess 104 is locked in the hole and attached to the panel described above. Thus, the conventional grommet 101 has been elastically deformed once in the direction of reducing the diameter of the enlarged diameter cylindrical portion 103 and attached to the panel.
JP-A-7-163034

前述した従来のグロメット１０１は、パネルに取り付けられた後の該パネルとの間を水密に保つために（パネルとの間の防水性を確保するために）、前述した係止凹部１０４を形成する拡径筒部１０３の小径側の壁１０５（図３２に示す）を厚くする必要が生じる。また、グロメット１０１は、パネルに取り付ける際に、拡径筒部１０３の特に前述した壁１０５の弾性復元力より強い力で孔に圧入する必要がある。このため、従来のグロメット１０１は、前述した壁１０５が縮径する方向に弾性変形しにくく、比較的強い力でパネルの孔内に圧入する必要が生じる。 The above-described conventional grommet 101 forms the above-described locking recess 104 in order to keep watertight with the panel after being attached to the panel (to ensure waterproofness between the panel). It is necessary to increase the thickness of the wall 105 (shown in FIG. 32) on the small diameter side of the expanded diameter cylindrical portion 103. Further, when the grommet 101 is attached to the panel, it is necessary to press-fit the hole into the hole with a force stronger than the elastic restoring force of the wall 105 described above, particularly the above-described wall 105. For this reason, the conventional grommet 101 is not easily elastically deformed in the direction in which the above-described wall 105 is reduced in diameter, and needs to be press-fitted into the hole of the panel with a relatively strong force.

このため、従来のグロメット１０１は、パネルに取り付ける際に、拡径筒部１０３が弾性変形しにくいので、拡径筒部１０３の表面とパネルの孔の内縁との間に大きな摩擦力が生じて、該パネルに取り付けにくかった。さらに、最悪の場合には、前述した拡径筒部１０３の表面とパネルの孔の内縁との間に生じた摩擦力により、拡径筒部１０３の表面が破損することも考えられる。 For this reason, when the conventional grommet 101 is attached to the panel, the large-diameter cylindrical portion 103 is not easily elastically deformed. Therefore, a large frictional force is generated between the surface of the large-diameter cylindrical portion 103 and the inner edge of the hole in the panel. It was difficult to attach to the panel. Furthermore, in the worst case, the surface of the enlarged diameter cylindrical portion 103 may be damaged by the frictional force generated between the surface of the enlarged diameter cylindrical portion 103 and the inner edge of the hole of the panel.

したがって、本発明の目的は、容易にパネルに取り付けることができるグロメットを提供することにある。 Accordingly, an object of the present invention is to provide a grommet that can be easily attached to a panel.

前記課題を解決し目的を達成するために、請求項１に記載の本発明のグロメットは、小径側の端部から大径側の端部に向けて徐々に内外径が拡大するとともに筒状に形成されて内側にワイヤハーネスを通す拡径筒部と、前記拡径筒部の大径側の端部に設けられた係止凹部と、を備え、前記拡径筒部を小径側の端部側からパネルの孔内に挿入し、前記係止凹部が前記孔内に係止するグロメットにおいて、前記係止凹部は、前記拡径筒部の大径側の端部寄りの第１の壁と、この第１の壁と対向する小径側の端部寄りの第２の壁とにより形
成され、前記第２の壁を内方に撓ませて、前記孔内に係止するとともに、前記第２の壁の表面から凹の凹みを備えたことを特徴としている。 In order to solve the problems and achieve the object, the grommet according to the first aspect of the present invention has a cylindrical shape with the inner and outer diameters gradually increasing from the small-diameter end to the large-diameter end. A diameter-enlarged cylinder part formed through which the wire harness is passed, and a locking recess provided at an end part on the large-diameter side of the diameter-enlarged cylinder part, wherein the diameter-enlarged cylinder part is an end part on the small-diameter side In the grommet that is inserted into the hole of the panel from the side, and the locking recess is locked in the hole, the locking recess is a first wall near the end on the large diameter side of the enlarged-diameter cylindrical portion. The second wall is formed by a second wall near the end on the small diameter side opposite to the first wall, and the second wall is bent inward to be locked in the hole, and the second wall It is characterized by having a concave recess from the surface of the wall.

請求項２に記載の本発明のグロメットは、請求項１に記載のグロメットにおいて、前記凹みは、前記第２の壁の表面から前記拡径筒部の外表面に向かって延びていることを特徴としている。 A grommet according to a second aspect of the present invention is the grommet according to the first aspect, wherein the dent extends from the surface of the second wall toward the outer surface of the diameter-enlarging cylindrical portion. It is said.

請求項３に記載の本発明のグロメットは、請求項１に記載のグロメットにおいて、前記凹みは、前記第２の壁の表面から、前記拡径筒部の外表面と平行に延びていることを特徴としている。 The grommet according to a third aspect of the present invention is the grommet according to the first aspect, wherein the recess extends from the surface of the second wall in parallel with the outer surface of the enlarged diameter cylindrical portion. It is a feature.

請求項４に記載の本発明のグロメットは、請求項１から請求項３のうちいずれか一項に記載のグロメットにおいて、前記拡径筒部の外表面から凸で、かつ周方向に間隔をあけているとともに前記拡径筒部の軸芯に沿って延びた複数のリブを備えたことを特徴としている。 A grommet according to a fourth aspect of the present invention is the grommet according to any one of the first to third aspects, wherein the grommet is convex from the outer surface of the enlarged diameter cylindrical portion and spaced in the circumferential direction. And a plurality of ribs extending along the axis of the diameter-enlarged cylindrical portion.

請求項５に記載の本発明のグロメットは、請求項１から請求項４のうちいずれか一項に記載のグロメットにおいて、前記凹みは、前記拡径筒部の全周に亘って設けられていることを特徴としている。 A grommet according to a fifth aspect of the present invention is the grommet according to any one of the first to fourth aspects, wherein the recess is provided over the entire circumference of the diameter-enlarging cylindrical portion. It is characterized by that.

請求項６に記載の本発明のグロメットは、請求項４に記載のグロメットにおいて、前記凹みは、前記拡径筒部の前記リブが設けられた箇所に設けられていることを特徴としている。 A grommet according to a sixth aspect of the present invention is characterized in that, in the grommet according to the fourth aspect, the recess is provided at a location where the rib of the enlarged diameter cylindrical portion is provided.

請求項１に記載した本発明のグロメットによれば、第２の壁の表面から凹の凹みを備えているので、パネルの孔内に拡径筒部の小径側から挿入すると、凹みがつぶれる方向に特に第２の壁即ち拡径筒部が弾性変形する。このため、容易に拡径筒部が、縮径（内外径が縮小することを示す）する方向に弾性変形する。 According to the grommet of the present invention described in claim 1, since the concave portion is provided from the surface of the second wall, the direction in which the concave portion is crushed when it is inserted into the hole of the panel from the small diameter side of the enlarged diameter cylindrical portion. In particular, the second wall, i.e., the expanded cylindrical portion is elastically deformed. For this reason, the diameter-expanded cylindrical portion is easily elastically deformed in the direction of reducing the diameter (indicating that the inner and outer diameters are reduced).

また、パネルに係止凹部が係止した後即ちパネルに取り付けられた後に、パネルに取り付ける際と逆向きに引っ張られると、拡径筒部は、凹みが拡がる方向に弾性変形する。即ち、特に第２の壁が拡径（内外径が拡大することを示す）する方向に、拡径筒部が弾性変形する。 Further, after the locking recess is locked to the panel, that is, after being attached to the panel, if the tube is pulled in the direction opposite to that when attaching to the panel, the diameter-expanded cylindrical portion is elastically deformed in the direction in which the dent expands. That is, the diameter-expanded cylindrical portion is elastically deformed particularly in the direction in which the second wall is expanded in diameter (indicating that the inner and outer diameters are increased).

請求項２に記載した本発明のグロメットによれば、第２の壁の表面から凹でかつこの第２の壁の表面から拡径筒部の外表面に向かって延びた凹みを備えているので、パネルの孔内に拡径筒部の小径側から挿入すると、凹みがつぶれる方向に特に第２の壁即ち拡径筒部が弾性変形する。このため、容易に拡径筒部が、縮径（内外径が縮小することを示す）する方向に弾性変形する。 According to the grommet of the present invention described in claim 2, since it is provided with a recess that is concave from the surface of the second wall and that extends from the surface of the second wall toward the outer surface of the enlarged diameter cylindrical portion. When it is inserted into the hole of the panel from the small diameter side of the enlarged diameter cylindrical portion, the second wall, that is, the enlarged diameter cylindrical portion is particularly elastically deformed in the direction in which the dent is collapsed. For this reason, the diameter-expanded cylindrical portion is easily elastically deformed in the direction of reducing the diameter (indicating that the inner and outer diameters are reduced).

請求項３に記載した本発明のグロメットによれば、第２の壁の表面から凹でかつこの第２の壁の表面から拡径筒部の外表面と平行に延びた凹みを備えているので、パネルの孔内に拡径筒部の小径側から挿入すると、凹みがつぶれる方向に特に第２の壁即ち拡径筒部が弾性変形する。このため、容易に拡径筒部が、縮径（内外径が縮小することを示す）する方向に弾性変形する。 According to the grommet of the present invention described in claim 3, since it is provided with a recess which is concave from the surface of the second wall and extends from the surface of the second wall in parallel with the outer surface of the enlarged diameter cylindrical portion. When it is inserted into the hole of the panel from the small diameter side of the enlarged diameter cylindrical portion, the second wall, that is, the enlarged diameter cylindrical portion is particularly elastically deformed in the direction in which the dent is collapsed. For this reason, the diameter-expanded cylindrical portion is easily elastically deformed in the direction of reducing the diameter (indicating that the inner and outer diameters are reduced).

請求項４に記載した本発明のグロメットによれば、拡径筒部の表面から凸のリブを複数備えている。このため、パネルに取り付ける際に、リブのみがパネルと接触する。このように、パネルに取り付けられる際に、該パネルとの接触面積が小さくなる。 According to the grommet of the present invention as set forth in claim 4, a plurality of ribs protruding from the surface of the enlarged diameter cylindrical portion are provided. For this reason, when attaching to a panel, only a rib contacts a panel. Thus, when attached to a panel, the contact area with the panel is reduced.

請求項５に記載した本発明のグロメットによれば、凹みが全周に亘って設けられているので、パネルに取り付ける際に、全周に亘って拡径筒部が縮径する方向に弾性変形し易くなっている。 According to the grommet of the present invention as set forth in claim 5, since the dent is provided over the entire circumference, when being attached to the panel, it is elastically deformed in the direction in which the diameter-expanded cylindrical portion is reduced in diameter over the entire circumference. It is easy to do.

請求項６に記載した本発明のグロメットによれば、凹みがリブの設けられた箇所に設けられているので、パネルに取り付ける際に、特にリブ及び拡径筒部のリブが設けられた箇所が縮径する方向に弾性変形し易くなっている。 According to the grommet of the present invention as set forth in claim 6, since the recess is provided at the location where the rib is provided, particularly when the rib is attached to the panel, the location where the rib and the rib of the expanded cylindrical portion are provided. It is easy to elastically deform in the direction of diameter reduction.

以上説明したように、請求項１から請求項３に記載の本発明は、凹みがつぶれるなどして、容易に拡径筒部が縮径する方向に弾性変形しやすい。したがって、容易に車体を構成するパネルに取り付けることができる。 As described above, the present invention according to claims 1 to 3 is easily elastically deformed in a direction in which the diameter-expanding cylindrical portion is easily reduced due to collapse of the dent or the like. Therefore, it can be easily attached to the panel constituting the vehicle body.

また、パネルに取り付けられた後に、パネルに取り付けられる際と逆向きに引っ張られると、特に第２の壁が拡径する方向に、拡径筒部が弾性変形する。このため、係止凹部の係止後に不意にパネルから脱落することを確実に防止できる。 Further, after being attached to the panel, when pulled in the direction opposite to that when attached to the panel, the diameter-expanding cylindrical portion is elastically deformed particularly in the direction in which the second wall increases in diameter. For this reason, it can prevent reliably falling off from a panel suddenly after latching of a latching recessed part.

請求項４に記載の本発明は、パネルに取り付ける際に、リブのみがパネルと接触して、パネルとの接触面積が小さくなる。このため、パネルに取り付ける際に、リブ及び拡径筒
部のリブが設けられた箇所に局部的な圧縮変形が起こり、拡径筒部が縮径する方向により弾性変形し易くなる。このため、より容易に車体を構成するパネルに取り付けることができる。 According to the fourth aspect of the present invention, when attaching to the panel, only the rib contacts the panel, and the contact area with the panel is reduced. For this reason, when attaching to a panel, a local compressive deformation occurs in the location in which the rib and the rib of the diameter expansion cylinder part were provided, and it becomes easy to elastically deform by the direction to which a diameter expansion cylinder part shrinks. For this reason, it can attach to the panel which comprises a vehicle body more easily.

請求項５に記載の本発明は、凹みが全周に亘って設けられているので、全周に亘って拡径筒部が縮径する方向に弾性変形し易くなっている。したがって、より一層容易に車体を構成するパネルに取り付けることができる。 According to the fifth aspect of the present invention, since the recess is provided over the entire circumference, it is easily elastically deformed in the direction in which the diameter-expanded cylindrical portion is reduced in diameter over the entire circumference. Therefore, it can be more easily attached to the panel constituting the vehicle body.

請求項６に記載の本発明は、凹みがリブの設けられた箇所に設けられているので、特にリブ及び拡径筒部のリブが設けられた箇所が縮径する方向に弾性変形し易くなっている。このため、パネルに取り付ける際に、リブ及び拡径筒部のリブが設けられた箇所に局部的な圧縮変形がより確実に起こる。このため、より一層容易に車体を構成するパネルに取り付けることができる。 According to the sixth aspect of the present invention, since the dent is provided at the portion where the rib is provided, the portion where the rib and the rib of the enlarged diameter cylindrical portion are provided is particularly easily elastically deformed in the direction of reducing the diameter. ing. For this reason, when it attaches to a panel, a local compressive deformation more reliably arises in the location in which the rib and the rib of the enlarged diameter cylinder part were provided. For this reason, it can attach to the panel which comprises a vehicle body much more easily.

［第１の実施形態］
以下、本発明の第１の実施形態にかかるグロメットを、図１ないし図１１を参照して説明する。本発明の第１の実施形態にかかるグロメット１（図１ないし図１１に示す）は、車両としての自動車などの車体を構成するパネル２（図１、図６ないし図１１に示す）に設けられた孔３に取り付けられる。パネル２の孔３の内縁から円環状のリング部４が立設している。リング部４は、パネル２に一体に形成されている。図１に示す場合では、前記孔３は、平面形状が丸形に形成されている。 [First Embodiment]
Hereinafter, a grommet according to a first embodiment of the present invention will be described with reference to FIGS. A grommet 1 (shown in FIGS. 1 to 11) according to a first embodiment of the present invention is provided on a panel 2 (shown in FIGS. 1 and 6 to 11) constituting a vehicle body such as an automobile as a vehicle. It is attached to the hole 3. An annular ring portion 4 is erected from the inner edge of the hole 3 of the panel 2. The ring portion 4 is formed integrally with the panel 2. In the case shown in FIG. 1, the hole 3 has a round planar shape.

グロメット１は、筒状に形成されているとともに、内側に前記自動車に配索されるワイヤハーネス５（図６中に二点鎖線で示す）を通す。グロメット１は、パネル２との間を水密に保ち、該パネル２との間から内側に水などの水分（液体）が浸入することを防止して、前記ワイヤハーネス５に水などの水分（液体）が付着することを防止する。 The grommet 1 is formed in a cylindrical shape and passes a wire harness 5 (indicated by a two-dot chain line in FIG. 6) routed inside the automobile. The grommet 1 keeps water tightness between the panel 2 and prevents moisture (liquid) such as water from entering inside from the space between the panel 2, and moisture (liquid) such as water enters the wire harness 5. ) Is prevented.

グロメット１は、弾性変形自在な弾性材料としてのゴムなどからなる。グロメット１は、図１ないし図３に示すように、筒状に形成された小径筒部１０と、拡径筒部１１とを一体に備えている。小径筒部１０は、円筒状に形成されており、内側にワイヤハーネス５（図６中に二点鎖線で示す）を通す。小径筒部１０の外径は、孔３の内径より小さい。拡径筒部１１は、一端部１１ａが小径筒部１０に連なりこの小径筒部１０から離れるのにしたがって即ち他端部１１ｂに向かうにしたがって内外径が徐々に拡大する円筒状に形成されている。拡径筒部１１は、小径筒部１０と同軸に配されているとともに、該小径筒部１０に直列に連結している。 The grommet 1 is made of rubber or the like as an elastic material that can be elastically deformed. As shown in FIGS. 1 to 3, the grommet 1 integrally includes a small-diameter cylindrical portion 10 formed in a cylindrical shape and an enlarged-diameter cylindrical portion 11. The small-diameter cylindrical portion 10 is formed in a cylindrical shape, and allows the wire harness 5 (indicated by a two-dot chain line in FIG. 6) to pass inside. The outer diameter of the small diameter cylindrical portion 10 is smaller than the inner diameter of the hole 3. The enlarged diameter cylindrical portion 11 is formed in a cylindrical shape in which the inner and outer diameters gradually increase as one end portion 11a continues to the small diameter cylindrical portion 10 and moves away from the small diameter cylindrical portion 10, that is, toward the other end portion 11b. . The enlarged diameter cylindrical portion 11 is arranged coaxially with the small diameter cylindrical portion 10 and is connected to the small diameter cylindrical portion 10 in series.

なお、拡径筒部１１の一端部１１ａは、小径側の端部をなしており、他端部１１ｂは、大径側の端部をなしている。また、拡径筒部１１は、小径筒部１０内を通るワイヤハーネス５を内側に通す。拡径筒部１１の一端部１１ａの外径は、孔３の内径より小さく、拡径筒部１１の他端部１１ｂの外径は、孔３の内径より大きい。 In addition, the one end part 11a of the enlarged diameter cylinder part 11 has comprised the edge part by the side of a small diameter, and the other end part 11b has comprised the edge part by the side of a large diameter. Moreover, the enlarged diameter cylinder part 11 lets the wire harness 5 which passes the inside of the small diameter cylinder part 10 pass inside. The outer diameter of the one end portion 11 a of the enlarged diameter cylindrical portion 11 is smaller than the inner diameter of the hole 3, and the outer diameter of the other end portion 11 b of the enlarged diameter cylindrical portion 11 is larger than the inner diameter of the hole 3.

拡径筒部１１の他端部１１ｂには、全周に亘って、係止凹部１３が設けられている。係止凹部１３は、図４などに示すように、拡径筒部１１の外表面１１ｃより凹に形成されている。係止凹部１３は、図４及び図５に示すように、前記他端部１１ｂ寄りの第１の壁１４と、拡径筒部１１の軸芯Ｐ（図中に一点鎖線で示す）に沿って第１の壁１４と対向する一端部１１ａ寄りの第２の壁１５と、前記第１の壁１４と第２の壁１５との間に設けられた溝１６により形成されている。第１の壁１４の外縁部には、第２の壁１５に向かって凸のリップ１７が全周に亘って設けられている。第２の壁１５は、拡径筒部１１の前述した他端部１１ｂに設けられ、第１の壁１４より一端部１１ａ寄りに配されている。溝１６は、その溝底面に、全周に亘って、リップ１８が突出している。 The other end portion 11b of the enlarged diameter cylindrical portion 11 is provided with a locking recess 13 over the entire circumference. As shown in FIG. 4 and the like, the locking recess 13 is formed to be recessed from the outer surface 11 c of the diameter-expanded cylindrical portion 11. As shown in FIGS. 4 and 5, the locking recess 13 is formed along the first wall 14 near the other end portion 11 b and the axis P (indicated by a one-dot chain line in the drawing) of the enlarged diameter cylindrical portion 11. The second wall 15 near the one end 11a facing the first wall 14 and the groove 16 provided between the first wall 14 and the second wall 15 are formed. A convex lip 17 toward the second wall 15 is provided on the outer edge of the first wall 14 over the entire circumference. The second wall 15 is provided at the above-mentioned other end portion 11 b of the enlarged diameter cylindrical portion 11, and is disposed closer to the one end portion 11 a than the first wall 14. The groove 16 has a lip 18 protruding from the groove bottom surface over the entire circumference.

前述した係止凹部１３は、拡径筒部１１即ちグロメット１を矢印Ｋ（図１などに示す）に沿って一端部１１ａ（即ち小径筒部１０）からパネル２の孔３内に挿入して、第２の壁１５を一旦拡径筒部１１の内側に撓ませる。そして、溝１６の溝底面をパネル２の孔３の内面に接触させて、第２の壁１５を弾性復元力により初期状態に復帰させて、パネル２の孔３に係止する。 The aforementioned locking recess 13 is formed by inserting the enlarged diameter cylindrical portion 11, that is, the grommet 1 into the hole 3 of the panel 2 from the one end portion 11 a (that is, the small diameter cylindrical portion 10) along the arrow K (shown in FIG. 1 or the like). The second wall 15 is once bent toward the inside of the enlarged diameter cylindrical portion 11. Then, the bottom surface of the groove 16 is brought into contact with the inner surface of the hole 3 of the panel 2, and the second wall 15 is returned to the initial state by an elastic restoring force, and is locked in the hole 3 of the panel 2.

このとき、リップ１８は、図６及び図７に示すように、パネル２の孔３及びリング部４の内面に接触して、これらの孔３及びリング部４の内面との間を水密に保つ。さらに、このとき、リップ１７は、図６及び図７に示すように、パネル２の表面に接触して、このパネル２の表面との間を水密に保つ。 At this time, as shown in FIGS. 6 and 7, the lip 18 is in contact with the hole 3 of the panel 2 and the inner surface of the ring portion 4, and keeps watertight between the hole 3 and the inner surface of the ring portion 4. . Further, at this time, as shown in FIGS. 6 and 7, the lip 17 is in contact with the surface of the panel 2 to keep watertight between the surface of the panel 2.

また、矢印Ｋ即ちグロメット１（拡径筒部１１）をパネル２の孔３内に挿入する方向は、拡径筒部１１即ちグロメット１の軸芯Ｐと平行である。すなわち、拡径筒部１１即ちグロメット１の軸芯Ｐに沿って、グロメット１をパネル２の孔３内に挿入する。なお、前述した初期状態とは、拡径筒部１１即ちグロメット１が弾性変形していない状態を示している。 The direction in which the arrow K, that is, the grommet 1 (the enlarged diameter cylindrical portion 11) is inserted into the hole 3 of the panel 2 is parallel to the enlarged diameter cylindrical portion 11, that is, the axis P of the grommet 1. That is, the grommet 1 is inserted into the hole 3 of the panel 2 along the diameter-expanded cylindrical portion 11, that is, the axis P of the grommet 1. In addition, the initial state mentioned above has shown the state which the enlarged diameter cylinder part 11, ie, the grommet 1, has not elastically deformed.

また、グロメット１は、更に、凹み１９を備えている。凹み１９は、前述した第２の壁１５の表面１５ａから凹に形成されており、拡径筒部１１の全周に亘って設けられている。凹み１９は、前記軸芯Ｐを含んだグロメット１の断面において、前記第２の壁１５の表面１５ａから拡径筒部１１の外表面１１ｃに向かって延びている。このため、凹み１９は、軸芯Ｐを含んだグロメット１の断面において、前記第２の壁１５の表面１５ａから離れるのにしたがって、拡径筒部１１の外周に向かって延びている。 The grommet 1 further includes a recess 19. The recess 19 is formed to be recessed from the surface 15 a of the second wall 15 described above, and is provided over the entire circumference of the diameter-enlarged cylindrical portion 11. The recess 19 extends from the surface 15a of the second wall 15 toward the outer surface 11c of the diameter-expanded cylindrical portion 11 in the cross section of the grommet 1 including the shaft core P. For this reason, the recess 19 extends toward the outer periphery of the enlarged diameter cylindrical portion 11 as the distance from the surface 15a of the second wall 15 increases in the cross section of the grommet 1 including the axis P.

前述した構成のグロメット１をパネル２に取り付ける際には、まず、小径筒部１０と、パネル２の孔３とを軸芯Ｐに沿って相対させる。そして、矢印Ｋ即ち軸芯Ｐに沿って、拡径筒部１１即ちグロメット１を、図８に示すように、小径筒部１０即ち一端部１１ａより孔３内に徐々に挿入する。すると、図９に示すように、拡径筒部１１の外表面１１ｃが、パネル２の孔３の内縁に接触する。 When the grommet 1 having the above-described configuration is attached to the panel 2, first, the small-diameter cylindrical portion 10 and the hole 3 of the panel 2 are opposed to each other along the axis P. Then, along the arrow K, that is, the shaft core P, the enlarged diameter cylindrical portion 11, that is, the grommet 1, is gradually inserted into the hole 3 from the small diameter cylindrical portion 10, that is, the one end portion 11a, as shown in FIG. Then, as shown in FIG. 9, the outer surface 11 c of the enlarged diameter cylindrical portion 11 comes into contact with the inner edge of the hole 3 of the panel 2.

さらに、拡径筒部１１即ちグロメット１をパネル２の孔３内に挿入（圧入）していくと、孔３及びリング部４の内面により、拡径筒部１１が該拡径筒部１１の内側に向かって押圧される。すると、図１０に示すように、前述した凹み１９がつぶれるとともに、内外径が縮小する方向に拡径筒部１１が弾性変形する。即ち、拡径筒部１１が、縮径（内外径が縮小することを示す）する方向に弾性変形する。 Further, when the diameter-enlarged cylinder part 11, that is, the grommet 1 is inserted (press-fitted) into the hole 3 of the panel 2, the diameter-enlarged cylinder part 11 is formed by the inner surface of the hole 3 and the ring part 4. It is pressed toward the inside. Then, as shown in FIG. 10, the above-described dent 19 is crushed and the diameter-enlarged cylindrical portion 11 is elastically deformed in a direction in which the inner and outer diameters are reduced. That is, the diameter-enlarging cylindrical portion 11 is elastically deformed in the direction of reducing the diameter (indicating that the inner and outer diameters are reduced).

そして、パネル２の孔３及びリング部４が、溝１６内に位置する。すると、図１１に示すように、パネル２の孔３及びリング部４の内面にリップ１８が接触するとともに、パネル２の表面にリップ１７が接触する。こうして、リップ１７，１８が、パネル２との間を水密に保って、係止凹部１３がパネル２の孔３内に係止して、グロメット１は、パネル２に取り付けられる。 The hole 3 and the ring portion 4 of the panel 2 are located in the groove 16. Then, as shown in FIG. 11, the lip 18 contacts the hole 3 of the panel 2 and the inner surface of the ring portion 4, and the lip 17 contacts the surface of the panel 2. Thus, the lips 17 and 18 are kept watertight between the panel 2 and the locking recess 13 is locked in the hole 3 of the panel 2, so that the grommet 1 is attached to the panel 2.

本実施形態によれば、第２の壁１５の表面１５ａから凹でかつ拡径筒部１１の外表面１１ｃに向かって延びた凹み１９を備えているので、パネル２の孔３内に拡径筒部１１の一端部１１ａ側から挿入すると、凹み１９がつぶれる方向に特に第２の壁１５即ち拡径筒部１１が弾性変形する。このため、容易に拡径筒部１１が、縮径する方向に弾性変形する。凹み１９がつぶれるなどして、容易に拡径筒部１１が縮径する方向に弾性変形しやすい。したがって、グロメット１は、容易に車体を構成するパネル２に取り付けることができる。 According to the present embodiment, since the recess 19 extends from the surface 15 a of the second wall 15 and extends toward the outer surface 11 c of the diameter-expanded cylindrical portion 11, the diameter is increased in the hole 3 of the panel 2. If it inserts from the one end part 11a side of the cylinder part 11, especially the 2nd wall 15, ie, the diameter expansion cylinder part 11, elastically deforms in the direction which the dent 19 collapses. For this reason, the diameter-expanding cylindrical portion 11 is easily elastically deformed in the direction of reducing the diameter. For example, the dent 19 is crushed, and the diameter-expanded cylindrical portion 11 is easily elastically deformed in the direction in which the diameter is reduced. Therefore, the grommet 1 can be easily attached to the panel 2 constituting the vehicle body.

また、パネル２に係止凹部１３が係止した後即ちパネル２に取り付けられた後に、パネル２に取り付けの際と逆向き（矢印Ｋの逆向き）に引っ張られると、拡径筒部１１は、凹み１９が拡がる方向に弾性変形する。即ち、特に第２の壁１５が拡径（内外径が拡大することを示す）する方向に、拡径筒部１１が弾性変形する。このため、係止凹部１３の係止後に不意にパネル２から脱落することを確実に防止できる。 Further, after the locking recess 13 is locked to the panel 2, that is, after being attached to the panel 2, if it is pulled in the direction opposite to the direction of attachment to the panel 2 (the direction opposite to the arrow K), the enlarged diameter cylindrical portion 11 becomes The dent 19 is elastically deformed in the expanding direction. That is, the diameter-expanded cylindrical portion 11 is elastically deformed particularly in the direction in which the second wall 15 increases in diameter (indicating that the inner and outer diameters increase). Therefore, it is possible to reliably prevent the panel 2 from being accidentally dropped after the locking recess 13 is locked.

凹み１９が全周に亘って設けられているので、パネル２に取り付ける際に、全周に亘って拡径筒部１１が縮径する方向に弾性変形し易くなっている。したがって、より一層容易に車体を構成するパネル２に取り付けることができる。 Since the dent 19 is provided over the entire circumference, it is easily elastically deformed in the direction in which the diameter-expanded cylindrical portion 11 is reduced in diameter over the entire circumference when attached to the panel 2. Therefore, it can attach to the panel 2 which comprises a vehicle body much more easily.

［第２の実施形態］
次に、本発明の第２の実施形態にかかるグロメットを、図１２ないし図１５を参照して説明する。なお、前述した第１の実施形態と同一構成部分には、同一符号を付して説明を省略する。 [Second Embodiment]
Next, a grommet according to a second embodiment of the present invention will be described with reference to FIGS. Note that the same components as those in the first embodiment described above are denoted by the same reference numerals and description thereof is omitted.

本実施形態のグロメット１は、リブ１２を複数備えている。リブ１２は、図１２ないし図１４に示すように、拡径筒部１１の外表面１１ｃから凸でかつ前記軸芯Ｐに沿って直線状に伸びている。リブ１２は、係止凹部１３より一端部１１ａ寄りに配されている。リブ１２は、拡径筒部１１の一端部１１ａから第２の壁１５とに亘って設けられている。複数のリブ１２は、図１３に示すように、拡径筒部１１の軸芯Ｐを中心した周方向に沿って、等間隔に設けられている。 The grommet 1 of this embodiment includes a plurality of ribs 12. As shown in FIGS. 12 to 14, the rib 12 is convex from the outer surface 11 c of the enlarged diameter cylindrical portion 11 and extends linearly along the axis P. The rib 12 is arranged closer to the one end 11 a than the locking recess 13. The rib 12 is provided from the one end portion 11 a of the enlarged diameter cylindrical portion 11 to the second wall 15. As shown in FIG. 13, the plurality of ribs 12 are provided at equal intervals along the circumferential direction centered on the axis P of the enlarged diameter cylindrical portion 11.

また、本実施形態のグロメット１も、前述した第１の実施形態のグロメット１と同様に、図１４及び図１５に示すように、拡径筒部１１の全周に亘って設けられた第２の壁１５の表面１５ａから凹の凹み１９を備えている。凹み１９は、前述した第１の実施形態と同様に、軸芯Ｐを含んだグロメット１の断面において、第２の壁１５の表面１５ａから拡径筒部１１の外表面１１ｃに向かって延びている。 Moreover, the grommet 1 of this embodiment is also the 2nd provided over the perimeter of the diameter expansion cylinder part 11, as shown in FIG.14 and FIG.15 similarly to the grommet 1 of 1st Embodiment mentioned above. A concave recess 19 is provided from the surface 15 a of the wall 15. As in the first embodiment described above, the recess 19 extends from the surface 15a of the second wall 15 toward the outer surface 11c of the enlarged diameter cylindrical portion 11 in the cross section of the grommet 1 including the shaft core P. Yes.

本実施形態においても、パネル２の孔３内に小径筒部１０即ち一端部１１ａからグロメット１を圧入すると、凹み１９がつぶれてリブ１２及び拡径筒部１１が縮径する方向に弾性変形する。そして、係止凹部１３がパネル２の孔３に係止して、グロメット１がパネル２に取り付けられる。 Also in the present embodiment, when the grommet 1 is press-fitted into the hole 3 of the panel 2 from the small diameter cylindrical portion 10, that is, the one end portion 11 a, the recess 19 is collapsed and the rib 12 and the large diameter cylindrical portion 11 are elastically deformed in the direction of reducing the diameter. . Then, the locking recess 13 is locked in the hole 3 of the panel 2, and the grommet 1 is attached to the panel 2.

本実施形態においても、前述した第１の実施形態と同様に、凹み１９が拡径筒部１１の全周に亘って設けられているので、パネル２の孔３に挿入する際に、凹み１９がつぶれるなどして、容易に拡径筒部１１が縮径する方向に弾性変形しやすい。したがって、グロメット１は、容易に車体を構成するパネル２に取り付けることができる。 Also in this embodiment, since the dent 19 is provided over the entire circumference of the enlarged diameter cylindrical portion 11 as in the first embodiment described above, the dent 19 is inserted into the hole 3 of the panel 2. For example, the diameter-expanding cylindrical portion 11 is easily elastically deformed in the direction in which the diameter is reduced. Therefore, the grommet 1 can be easily attached to the panel 2 constituting the vehicle body.

また、パネル２に取り付けられた後に、矢印Ｋの逆向きに引っ張られると、拡径筒部１１は、凹み１９が拡がる方向に弾性変形する。即ち、特に第２の壁１５が拡径する方向に、拡径筒部１１が弾性変形する。このため、係止凹部１３の係止後に不意にパネル２から脱落することを確実に防止できる。 Further, after being attached to the panel 2, when pulled in the opposite direction of the arrow K, the diameter-expanded cylindrical portion 11 is elastically deformed in the direction in which the dent 19 expands. That is, the diameter-expanding cylindrical portion 11 is elastically deformed, particularly in the direction in which the second wall 15 increases in diameter. Therefore, it is possible to reliably prevent the panel 2 from being accidentally dropped after the locking recess 13 is locked.

さらに、本実施形態のグロメット１は、リブ１２を複数備えている。このため、パネル２に取り付ける際に、リブ１２のみがパネル２と接触する。このように、パネル２に取り付けられる際に、該パネル２との接触面積が小さくなる。このため、パネル２に取り付ける際に、リブ１２及び拡径筒部１１のリブ１２が設けられた箇所に局部的な圧縮変形が起こり、拡径筒部１１が縮径する方向により弾性変形し易くなる。このため、より容易に車体を構成するパネル２に取り付けることができる。 Furthermore, the grommet 1 of this embodiment includes a plurality of ribs 12. For this reason, when attaching to the panel 2, only the ribs 12 are in contact with the panel 2. Thus, when attached to the panel 2, the contact area with the panel 2 is reduced. For this reason, when attaching to the panel 2, local compressive deformation occurs in the location where the rib 12 and the rib 12 of the enlarged diameter cylindrical portion 11 are provided, and elastic deformation is more easily caused in the direction in which the enlarged diameter cylindrical portion 11 is reduced in diameter. Become. For this reason, it can attach to the panel 2 which comprises a vehicle body more easily.

［第３の実施形態］
次に、本発明の第３の実施形態にかかるグロメットを、図１６ないし図１８を参照して説明する。なお、前述した第１及び第２の実施形態と同一構成部分には、同一符号を付して説明を省略する。 [Third Embodiment]
Next, a grommet according to a third embodiment of the present invention will be described with reference to FIGS. In addition, the same code | symbol is attached | subjected to the same component as 1st and 2nd embodiment mentioned above, and description is abbreviate | omitted.

本実施形態のグロメット１は、図１６及び図１７に示すように、前述した第２の実施形態と同様に、リブ１２を複数備えている。また、本実施形態では、図１８に示すように、拡径筒部１１のリブ１２より内側の箇所のみに凹み１９が設けられ、図１７に示すように、外表面１１ｃにリブ１２が形成されていない箇所より内側には凹み１９が設けられていない。前記拡径筒部１１のリブ１２より内側の箇所は、本明細書に記した拡径筒部１１のリブ１２が設けられた箇所をなしている。このように、本実施形態では、凹み１９は、拡径筒部１１のリブ１２が設けられた箇所のみに設けられている。 As shown in FIGS. 16 and 17, the grommet 1 of this embodiment includes a plurality of ribs 12 as in the second embodiment described above. Further, in the present embodiment, as shown in FIG. 18, a recess 19 is provided only at a location inside the rib 12 of the enlarged diameter cylindrical portion 11, and as shown in FIG. 17, the rib 12 is formed on the outer surface 11c. A recess 19 is not provided on the inner side of the non-exposed portion. The place inside the rib 12 of the diameter-enlarged cylinder part 11 is a place where the rib 12 of the diameter-enlarged cylinder part 11 described in this specification is provided. Thus, in this embodiment, the dent 19 is provided only in the location where the rib 12 of the diameter-expanded cylindrical portion 11 is provided.

本実施形態においても、前述した第１及び第２の実施形態と同様に、凹み１９がつぶれるなどして、容易に拡径筒部１１が縮径する方向に弾性変形しやすい。したがって、グロメット１は、容易に車体を構成するパネル２に取り付けることができる。 Also in the present embodiment, as in the first and second embodiments described above, the dent 19 is crushed and the diameter-expanded cylindrical portion 11 is easily easily elastically deformed in the direction in which the diameter is reduced. Therefore, the grommet 1 can be easily attached to the panel 2 constituting the vehicle body.

さらに、本実施形態のグロメット１は、リブ１２を複数備えている。このため、パネル２に取り付ける際に、リブ１２のみがパネルと接触する。このように、パネル２に取り付けられる際に、該パネル２との接触面積が小さくなる。このため、パネル２に取り付ける際に、リブ１２及び拡径筒部１１のリブ１２が設けられた箇所に局部的な圧縮変形が起こり、拡径筒部１１が縮径する方向により弾性変形し易くなる。このため、より容易に車体を構成するパネル２に取り付けることができる。 Furthermore, the grommet 1 of this embodiment includes a plurality of ribs 12. For this reason, when attaching to the panel 2, only the rib 12 contacts with a panel. Thus, when attached to the panel 2, the contact area with the panel 2 is reduced. For this reason, when attaching to the panel 2, local compressive deformation occurs in the location where the rib 12 and the rib 12 of the enlarged diameter cylindrical portion 11 are provided, and elastic deformation is more easily caused in the direction in which the enlarged diameter cylindrical portion 11 is reduced in diameter. Become. For this reason, it can attach to the panel 2 which comprises a vehicle body more easily.

さらに、本実施形態のグロメット１は、リブ１２が設けられた箇所のみに凹み１９を設けている。このため、特に肉厚となるリブ１２が設けられた箇所が弾性変形しやすくなり、グロメット１は、容易に車体を構成するパネル２に取り付けることができる。 Furthermore, the grommet 1 of the present embodiment is provided with the dent 19 only at the place where the rib 12 is provided. For this reason, the part provided with the rib 12 which becomes especially thick becomes easy to elastically deform, and the grommet 1 can be attached to the panel 2 which comprises a vehicle body easily.

また、前述した第１及び第２の実施形態では、凹み１９を拡径筒部１１の全周に亘って設けている。しかしながら、本発明では、凹み１９を拡径筒部１１の一部に設けても良い。 Further, in the first and second embodiments described above, the recess 19 is provided over the entire circumference of the enlarged diameter cylindrical portion 11. However, in this invention, you may provide the dent 19 in a part of enlarged diameter cylinder part 11. FIG.

［第４の実施形態］
次に、本発明の第４の実施形態にかかるグロメットを図１９ないし図２２を参照して説明する。なお、前述した第１ないし第３の実施形態と同一構成部分には、同一符号を付して説明を省略する。 [Fourth Embodiment]
Next, a grommet according to a fourth embodiment of the present invention will be described with reference to FIGS. In addition, the same code | symbol is attached | subjected to the same component as 1st thru | or 3rd embodiment mentioned above, and description is abbreviate | omitted.

前述した第1ないし第３の実施形態では、パネル２の孔３の内縁から円環状のリング部４が立設している形状のパネルを使用したが、本実施形態では、リング部４が設けられておらず孔３のみが設けられたパネル２を使用している。また、本実施形態では、図２０ないし図２２に示すように、リップ１８は、全周に亘って第1の壁１４と一体に形成されている。 In the first to third embodiments described above, a panel having a shape in which an annular ring portion 4 is erected from the inner edge of the hole 3 of the panel 2 is used. However, in this embodiment, the ring portion 4 is provided. The panel 2 in which only the hole 3 is not provided is used. In the present embodiment, as shown in FIGS. 20 to 22, the lip 18 is formed integrally with the first wall 14 over the entire circumference.

本実施形態のグロメット１も、図２０ないし図２２に示すように、前述した第１ないし第３の実施形態のグロメット１と同様に、凹み１９を備えている。凹み１９は、前述した第２の壁１５の表面１５ａから凹に形成されており、拡径筒部１１の全周に亘って設けられている。本実施形態における凹み１９は、前記軸芯Ｐを含んだグロメット１の断面において、前記第２の壁１５の表面１５ａから拡径筒部１１の外表面１１ｃと軸芯Ｐとの双方と平行に延びている。 As shown in FIGS. 20 to 22, the grommet 1 of the present embodiment also includes a recess 19 in the same manner as the grommet 1 of the first to third embodiments described above. The recess 19 is formed to be recessed from the surface 15 a of the second wall 15 described above, and is provided over the entire circumference of the diameter-enlarged cylindrical portion 11. The recess 19 in the present embodiment is parallel to both the outer surface 11c of the enlarged cylindrical portion 11 and the shaft core P from the surface 15a of the second wall 15 in the cross section of the grommet 1 including the shaft core P. It extends.

前述した構成のグロメット１をパネル２に取り付ける際には、前述した第１の実施形態で説明したように、小径筒部１０と、パネル２の孔３とを軸芯Ｐに沿って相対させる。そして、拡径筒部１１即ちグロメット１を、小径筒部１０即ち一端部１１ａより孔３内に徐々に挿入する。すると、拡径筒部１１の外表面１１ｃが、パネル２の孔３の内縁に接触する。 When the grommet 1 having the above-described configuration is attached to the panel 2, the small-diameter cylindrical portion 10 and the hole 3 of the panel 2 are opposed to each other along the axis P as described in the first embodiment. Then, the enlarged diameter cylindrical portion 11, that is, the grommet 1 is gradually inserted into the hole 3 from the small diameter cylindrical portion 10, that is, the one end portion 11 a. Then, the outer surface 11 c of the enlarged diameter cylindrical portion 11 comes into contact with the inner edge of the hole 3 of the panel 2.

さらに、拡径筒部１１即ちグロメット１をパネル２の孔３内に挿入（圧入）していくと、孔３により、拡径筒部１１が該拡径筒部１１の内側に向かって押圧される。すると、図２１に示すように、第２の壁１５が凹み１９に嵌まり込んだ状態で密接する。即ち内外径が縮小する方向に拡径筒部１１が弾性変形する。 Further, when the diameter-enlarged cylinder part 11, that is, the grommet 1 is inserted (press-fitted) into the hole 3 of the panel 2, the diameter-enlarged cylinder part 11 is pressed toward the inside of the diameter-enlarged cylinder part 11 by the hole 3. The Then, as shown in FIG. 21, the second wall 15 comes into close contact with the recess 19. That is, the enlarged diameter cylindrical portion 11 is elastically deformed in the direction in which the inner and outer diameters are reduced.

そして、パネル２の孔３が、溝１６内に位置する。すると、図２２に示すように、パネル２の孔３の内面にリップ１８が接触するとともに、パネル２の表面にリップ１７が接触する。こうして、リップ１７,１８が、パネル２との間を水密に保って、係止凹部１３がパネル２の孔３内に係止して、グロメット１は、パネル２に取りつけられる。 The hole 3 of the panel 2 is located in the groove 16. Then, as shown in FIG. 22, the lip 18 contacts the inner surface of the hole 3 of the panel 2 and the lip 17 contacts the surface of the panel 2. Thus, the lips 17 and 18 are kept watertight between the panel 2, the locking recess 13 is locked in the hole 3 of the panel 2, and the grommet 1 is attached to the panel 2.

本実施形態のグロメット１は、第２の壁１５の表面１５ａから凹でかつ拡径筒部１１の外表面１１ｃと平行に延びた凹み１９が拡径筒部１１の全周に亘って設けられている。よって、グロメット１をパネル２の孔３に挿入する際、第２の壁１５が凹み１９に嵌まり込んだ状態で密接し、拡径筒部１１が縮径する方向に弾性変形しやすい。したがって、グロメット１は、容易に車体を構成するパネル２に取り付けることができる。 In the grommet 1 of the present embodiment, a recess 19 that is concave from the surface 15 a of the second wall 15 and extends parallel to the outer surface 11 c of the enlarged diameter cylindrical portion 11 is provided over the entire circumference of the enlarged diameter cylindrical portion 11. ing. Therefore, when the grommet 1 is inserted into the hole 3 of the panel 2, the second wall 15 is in close contact with the recess 19 and is easily elastically deformed in the direction in which the diameter-expanded cylindrical portion 11 is reduced in diameter. Therefore, the grommet 1 can be easily attached to the panel 2 constituting the vehicle body.

［第５の実施形態］
次に、本発明の第５の実施形態にかかるグロメットを、図２３ないし図２５を参照して説明する。なお、前述した第１ないし第４の実施形態と同一構成部分には、同一符号を付して説明を省略する。 [Fifth Embodiment]
Next, a grommet according to a fifth embodiment of the present invention will be described with reference to FIGS. Note that the same components as those in the first to fourth embodiments described above are denoted by the same reference numerals and description thereof is omitted.

本実施形態のグロメット１も、図２３及び図２５に示すように、前述した第２及び第３の実施形態と同様に、リブ１２を複数備えている。また、本実施形態でも、図２４に示すように、前述した第１ないし第４の実施形態と同様に、凹み１９を備えている。凹み１９は、前述した第４の実施形態と同様に、第２の壁１５の表面１５ａから凹に形成されており、拡径筒部１１の全周に亘って設けられている。本実施形態における凹み１９は、前記軸芯Ｐを含んだグロメット１の断面において、前記第２の壁１５の表面１５ａから拡径筒部１１の外表面１１ｃと軸芯Ｐとの双方と平行に延びている。 As shown in FIGS. 23 and 25, the grommet 1 of the present embodiment also includes a plurality of ribs 12 as in the second and third embodiments described above. Also in this embodiment, as shown in FIG. 24, a recess 19 is provided as in the first to fourth embodiments described above. The recess 19 is formed as a recess from the surface 15 a of the second wall 15 as in the fourth embodiment described above, and is provided over the entire circumference of the enlarged diameter cylindrical portion 11. The recess 19 in the present embodiment is parallel to both the outer surface 11c of the enlarged cylindrical portion 11 and the shaft core P from the surface 15a of the second wall 15 in the cross section of the grommet 1 including the shaft core P. It extends.

本実施形態においても、パネル２の孔３内に小径筒部１０即ち一端部１１ａからグロメット１を圧入すると、第２の壁１５が凹み１９に嵌まり込んだ状態で密接する。即ち内外径が縮小する方向に拡径筒部１１が弾性変形する。そして、係止凹部１３がパネル２の孔３に係止して、グロメット１がパネル２に取り付けられる。 Also in the present embodiment, when the grommet 1 is press-fitted into the hole 3 of the panel 2 from the small diameter cylindrical portion 10, that is, the one end portion 11 a, the second wall 15 is brought into close contact with the recess 19. That is, the enlarged diameter cylindrical portion 11 is elastically deformed in the direction in which the inner and outer diameters are reduced. Then, the locking recess 13 is locked in the hole 3 of the panel 2, and the grommet 1 is attached to the panel 2.

本実施形態においても、前述した第４の実施形態と同様に、第２の壁１５の表面１５ａから凹でかつ拡径筒部１１の外表面１１ｃと平行に延びた凹み１９が拡径筒部１１の全周に亘って設けられている。よって、グロメット１をパネル２の孔３に挿入する際、第２の壁１５が凹み１９に嵌まり込んだ状態で密接し、拡径筒部１１が縮径する方向に弾性変形しやすい。したがって、グロメット１は、容易に車体を構成するパネル２に取り付けることができる。 Also in the present embodiment, as in the above-described fourth embodiment, the dent 19 that is concave from the surface 15a of the second wall 15 and extends in parallel with the outer surface 11c of the diametrical cylindrical portion 11 is the diametrically enlarged cylindrical portion. 11 is provided over the entire circumference. Therefore, when the grommet 1 is inserted into the hole 3 of the panel 2, the second wall 15 is in close contact with the recess 19 and is easily elastically deformed in the direction in which the diameter-expanded cylindrical portion 11 is reduced in diameter. Therefore, the grommet 1 can be easily attached to the panel 2 constituting the vehicle body.

［第６の実施形態］
次に、本発明の第６の実施形態にかかるグロメットを、図２６ないし図２８を参照して説明する。なお、前述した第１ないし第５の実施形態と同一構成部分には、同一符号を付して説明を省略する。 [Sixth Embodiment]
Next, a grommet according to a sixth embodiment of the present invention will be described with reference to FIGS. The same components as those in the first to fifth embodiments described above are denoted by the same reference numerals and description thereof is omitted.

本実施形態のグロメット１は、図２６及び図２８に示すように、前述した第２,３,５の実施形態と同様に、リブ１２を複数備えている。また、本実施形態でも、図２８に示すように、前述した第１ないし第５の実施形態と同様に凹み１９を備えている。凹み１９は、前述した第３の実施形態と同様に、拡径筒部１１のリブ１２が設けられた箇所のみに設けられている。本実施形態における凹み１９は、前記軸芯Ｐを含んだグロメット１の断面において、前記第２の壁１５の表面１５ａから拡径筒部１１の外表面１１ｃと軸芯Ｐとの双方と平行に延びている。 As shown in FIGS. 26 and 28, the grommet 1 of the present embodiment includes a plurality of ribs 12 as in the second, third, and fifth embodiments described above. Also in the present embodiment, as shown in FIG. 28, a recess 19 is provided as in the first to fifth embodiments described above. The dent 19 is provided only at the location where the rib 12 of the diameter-expanded cylindrical portion 11 is provided, as in the third embodiment described above. The recess 19 in the present embodiment is parallel to both the outer surface 11c of the enlarged cylindrical portion 11 and the shaft core P from the surface 15a of the second wall 15 in the cross section of the grommet 1 including the shaft core P. It extends.

本実施形態においては、第２の壁１５の表面１５ａから凹でかつ拡径筒部１１の外表面１１ｃと平行に延びた凹み１９が拡径筒部１１のリブ１２が設けられた箇所にのみ設けられている。よって、グロメット１をパネル２の孔３に挿入する際、第２の壁１５が凹み１９に嵌まり込んだ状態で密接し、拡径筒部１１が縮径する方向に弾性変形しやすい。したがって、グロメット１は、容易に車体を構成するパネル２に取り付けることができる。 In the present embodiment, the recess 19 that is recessed from the surface 15 a of the second wall 15 and extends in parallel with the outer surface 11 c of the diameter-enlarged cylinder portion 11 is only at a location where the rib 12 of the diameter-enlarged cylinder portion 11 is provided. Is provided. Therefore, when the grommet 1 is inserted into the hole 3 of the panel 2, the second wall 15 is in close contact with the recess 19 and is easily elastically deformed in the direction in which the diameter-expanded cylindrical portion 11 is reduced in diameter. Therefore, the grommet 1 can be easily attached to the panel 2 constituting the vehicle body.

また、前述した第１,２,４,５の実施形態では、凹み１９を拡径筒部１１の全周に亘って設けている。しかしながら、本発明では、凹み１９を拡径筒部１１の一部に設けても良い。 In the first, second, fourth, and fifth embodiments described above, the recess 19 is provided over the entire circumference of the enlarged diameter cylindrical portion 11. However, in this invention, you may provide the dent 19 in a part of enlarged diameter cylinder part 11. FIG.

また、前述したグロメット１をパネル２から取り外す際には、図２９に示す治具３０を用いる。治具３０はリング状でかつ、その内径がパネル２の孔３の内径と等しい。該治具３０を用いてグロメット１をパネル２から取り外す方法を以下に説明する。 Moreover, when removing the grommet 1 mentioned above from the panel 2, the jig | tool 30 shown in FIG. 29 is used. The jig 30 has a ring shape and the inner diameter thereof is equal to the inner diameter of the hole 3 of the panel 2. A method for removing the grommet 1 from the panel 2 using the jig 30 will be described below.

まず、小径筒部１０と、リング状の治具３０とを軸芯Ｐに沿って相対させる。そして、矢印Ｋ２即ち軸芯Ｐに沿って、治具３０を、グロメット１の小径筒部１０即ち一端部１１ａより徐々に挿入する。すると、治具３０の内側と拡径筒部１１の外表面１１ｃが接触し、さらに、図３０に示すように、前述した第２の壁１５が凹み１９に嵌まり込んだ状態で密接するとともに、内外径が縮小する方向に拡径筒部１１が弾性変形する。即ち、拡径筒部１１が、縮径（内外径が縮小することを示す）する方向に弾性変形する。すると、図３０に示すように、係止凹部１３のパネル２の孔３への係止が解除される。 First, the small-diameter cylindrical portion 10 and the ring-shaped jig 30 are made to face each other along the axis P. And the jig | tool 30 is gradually inserted from the small diameter cylinder part 10 of the grommet 1, ie, the one end part 11a, along the arrow K2, ie, the axial center P. FIG. Then, the inside of the jig 30 and the outer surface 11c of the enlarged diameter cylindrical portion 11 are in contact with each other, and further, the second wall 15 described above is in close contact with the recess 19 as shown in FIG. The diameter-enlarging cylinder portion 11 is elastically deformed in the direction in which the inner and outer diameters are reduced. That is, the diameter-enlarging cylindrical portion 11 is elastically deformed in the direction of reducing the diameter (indicating that the inner and outer diameters are reduced). Then, as shown in FIG. 30, the locking of the locking recess 13 to the hole 3 of the panel 2 is released.

さらにグロメット１をパネル２から挿入方向と逆向きに引っ張ることによって、グロメット１は容易にパネル２の孔３から取り外すことができる。 Furthermore, the grommet 1 can be easily removed from the hole 3 of the panel 2 by pulling the grommet 1 from the panel 2 in the direction opposite to the insertion direction.

前述した開示例によれば次のグロメット１の取り外し方法が得られる。
（付記）
パネル２の孔３に係止したグロメット１を該パネル２から取り外すグロメット１の取り外し方法において、
前記パネル２の孔３の内径と、内径が等しいリング状の治具３０を、前記グロメット１の小径筒部１０側からグロメット１の外周に嵌合させて、グロメット１のパネル２への係止を解除する
ことを特徴とするグロメット１の取り外し方法。 According to the disclosed example described above, the following method for removing the grommet 1 is obtained.
(Appendix)
In the method of removing the grommet 1 that removes the grommet 1 locked in the hole 3 of the panel 2 from the panel 2,
A ring-shaped jig 30 having the same inner diameter as the inner diameter of the hole 3 of the panel 2 is fitted to the outer periphery of the grommet 1 from the small-diameter cylindrical portion 10 side of the grommet 1 to lock the grommet 1 to the panel 2. The method of removing the grommet 1 characterized by canceling.

付記によれば、グロメット１が挿入されたパネル２の孔３の内径と、内径が等しいリング状の治具３０をグロメット１の外周に嵌合させることによって、拡径筒部１１が縮径する方向に弾性変形し、係止凹部１３のパネル２への係止が解除される。よって容易にグロメット１をパネル２の孔３から取り外すことができる。 According to the supplementary note, the diameter-enlarging cylindrical portion 11 is reduced in diameter by fitting a ring-shaped jig 30 having the same inner diameter with the inner diameter of the hole 3 of the panel 2 in which the grommet 1 is inserted into the outer periphery of the grommet 1. It is elastically deformed in the direction and the locking of the locking recess 13 to the panel 2 is released. Therefore, the grommet 1 can be easily removed from the hole 3 of the panel 2.

また、前述した開示例では、凹み１９が拡径筒部１１の全周に亘って設けられているグロメット１の例を示したが、本発明では、凹み１９を拡径筒部１１の一部に設けても良い。また、開示例ではリブ１２を備えたグロメット１の例を示したが、リブ１２を備えていないグロメット１にも適用可能なことは勿論である。 Moreover, although the example of the grommet 1 in which the dent 19 was provided over the perimeter of the enlarged diameter cylinder part 11 was shown in the disclosed example mentioned above, in this invention, the dent 19 is a part of the enlarged diameter cylinder part 11. May be provided. Moreover, although the example of the grommet 1 provided with the rib 12 was shown in the disclosed example, it is of course applicable to the grommet 1 not including the rib 12.

なお、前述した実施形態は本発明の代表的な形態を示したに過ぎず、本発明は、実施形態に限定されるものではない。即ち、本発明の骨子を逸脱しない範囲で種々変形して実施することができる。 In addition, embodiment mentioned above only showed the typical form of this invention, and this invention is not limited to embodiment. That is, various modifications can be made without departing from the scope of the present invention.

本発明の第１の実施形態にかかるグロメットとこのグロメットが取り付けられるパネルを示す斜視図である。It is a perspective view which shows the grommet concerning the 1st Embodiment of this invention, and the panel to which this grommet is attached. 図１に示されたグロメットの平面図である。It is a top view of the grommet shown in FIG. 図１に示されたグロメットの側面図である。It is a side view of the grommet shown in FIG. 図２中のＩＶ−ＩＶ線に沿う断面図である。It is sectional drawing which follows the IV-IV line | wire in FIG. 図４中のＶ部を拡大して示す断面図である。It is sectional drawing which expands and shows the V section in FIG. 図１に示されたグロメットがパネルに取り付けられた状態を示す断面図である。It is sectional drawing which shows the state by which the grommet shown by FIG. 1 was attached to the panel. 図６中のＶＩＩ部を拡大して示す断面図である。It is sectional drawing which expands and shows the VII part in FIG. 図１に示されたグロメットがパネルの孔に挿入された状態の要部を拡大して示す断面図である。It is sectional drawing which expands and shows the principal part of the state by which the grommet shown by FIG. 1 was inserted in the hole of the panel. 図８に示されたグロメットの拡径筒部の外表面にパネルの孔の内縁が接触した状態の要部を拡大して示す断面図である。It is sectional drawing which expands and shows the principal part of the state which the inner edge of the hole of the panel contacted the outer surface of the diameter expansion cylinder part of the grommet shown by FIG. 図９に示されたグロメットが更にパネルの孔に挿入されて、凹みがつぶれた状態の要部を拡大して示す断面図である。It is sectional drawing which expands and shows the principal part of the state where the grommet shown in FIG. 9 was further inserted in the hole of the panel, and the dent was crushed. 図１０に示されたグロメットの係止凹部がパネルの孔に係止した状態の要部を拡大して示す断面図である。It is sectional drawing which expands and shows the principal part in the state which the latching recessed part of the grommet shown by FIG. 10 latched to the hole of the panel. 本発明の第２の実施形態にかかるグロメットを示す斜視図である。It is a perspective view which shows the grommet concerning the 2nd Embodiment of this invention. 図１２に示されたグロメットの平面図である。FIG. 13 is a plan view of the grommet shown in FIG. 12. 図１３中のＸＩＶ−ＸＩＶ線に沿う断面図である。It is sectional drawing which follows the XIV-XIV line | wire in FIG. 図１３中のＸＶ−ＸＶ線に沿う断面図である。It is sectional drawing which follows the XV-XV line | wire in FIG. 本発明の第３の実施形態にかかるグロメットの平面図である。It is a top view of the grommet concerning a 3rd embodiment of the present invention. 図１６中のＸＶＩＩ−ＸＶＩＩ線に沿う断面図である。It is sectional drawing which follows the XVII-XVII line | wire in FIG. 図１６中のＸＶＩＩＩ−ＸＶＩＩＩ線に沿う断面図である。It is sectional drawing which follows the XVIII-XVIII line in FIG. 本発明の第４の実施形態にかかるグロメットの平面図である。It is a top view of the grommet concerning a 4th embodiment of the present invention. 図１９中のＸＩＸ−ＸＩＸ線に沿う断面図である。It is sectional drawing which follows the XIX-XIX line | wire in FIG. 図２０に示されたグロメットがパネルの孔に挿入されて、凹みがつぶれた状態の要部を拡大して示す断面図である。It is sectional drawing which expands and shows the principal part of the state which the grommet shown by FIG. 20 was inserted in the hole of the panel, and the dent was crushed. 図２１に示されたグロメットの係止凹部がパネルの孔に係止した状態の要部を拡大して示す断面図である。It is sectional drawing which expands and shows the principal part in the state which the latching recessed part of the grommet shown by FIG. 21 latched to the hole of the panel. 本発明の第５の実施形態にかかるグロメットの平面図である。It is a top view of the grommet concerning a 5th embodiment of the present invention. 図２３中のＸＸ−ＸＸ線に沿う断面図である。It is sectional drawing which follows the XX-XX line in FIG. 図２３中のＸＸＩ−ＸＸＩ線に沿う断面図である。It is sectional drawing which follows the XXI-XXI line | wire in FIG. 本発明の第６の実施形態にかかるグロメットの平面図である。It is a top view of the grommet concerning a 6th embodiment of the present invention. 図２６中のＸＸＩＩ−ＸＸＩＩ線に沿う断面図である。It is sectional drawing which follows the XXII-XXII line | wire in FIG. 図２６中のＸＸＩＩＩ−ＸＸＩＩＩ線に沿う断面図である。It is sectional drawing which follows the XXIII-XXIII line | wire in FIG. 本発明のグロメットをパネルから取り外す様子を説明した説明図である。It is explanatory drawing explaining a mode that the grommet of this invention was removed from a panel. 本発明のグロメットをパネルから取り外すための治具を挿入する様子を示した図である。It is the figure which showed a mode that the jig | tool for removing the grommet of this invention from a panel was inserted. 従来のグロメットの断面図である。It is sectional drawing of the conventional grommet. 図３１中のＸＸＩＶ部を拡大して示す断面図である。It is sectional drawing which expands and shows the XXIV part in FIG.

Explanation of symbols

１グロメット
２パネル
３孔
５ワイヤハーネス
１１拡径筒部
１１ａ一端部（小径側の端部）
１１ｂ他端部（大径側の端部）
１１ｃ外表面
１２リブ
１３係止凹部
１４第１の壁
１５第２の壁
１５ａ表面
１９凹み DESCRIPTION OF SYMBOLS 1 Grommet 2 Panel 3 Hole 5 Wire harness 11 Diameter expansion cylinder part 11a One end part (end part by the side of a small diameter)
11b The other end (end on the large diameter side)
11c outer surface 12 rib 13 locking recess 14 first wall 15 second wall 15a surface 19 dent

Claims

An inner diameter and an outer diameter gradually increase from the end on the small diameter side toward the end on the large diameter side, and the diameter increasing cylindrical portion that is formed in a cylindrical shape and passes the wire harness inside,
A locking recess provided at an end portion on the large-diameter side of the enlarged-diameter cylindrical portion, and inserting the enlarged-diameter cylinder portion into a hole in the panel from the end portion on the small-diameter side, In the grommet that locks in the hole,
The locking recess is formed by a first wall near the end on the large diameter side of the enlarged diameter cylindrical portion, and a second wall near the end on the small diameter side facing the first wall, Bending the second wall inward and locking it in the hole;
A grommet comprising a recess from the surface of the second wall.

2. The grommet according to claim 1, wherein the dent extends from a surface of the second wall toward an outer surface of the enlarged diameter cylindrical portion.

2. The grommet according to claim 1, wherein the recess extends from a surface of the second wall in parallel with an outer surface of the diameter-expanding cylindrical portion.

2. The apparatus according to claim 1, further comprising a plurality of ribs that are convex from an outer surface of the enlarged diameter cylindrical portion and spaced apart in the circumferential direction and extend along an axis of the enlarged diameter cylindrical portion. The grommet according to claim 3.

The grommet according to any one of claims 1 to 4, wherein the dent is provided over the entire circumference of the enlarged diameter cylindrical portion.

The grommet according to claim 4, wherein the recess is provided at a location where the rib of the enlarged diameter cylindrical portion is provided.