JP2020162343A - Grommet - Google Patents
Grommet Download PDFInfo
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- JP2020162343A JP2020162343A JP2019060732A JP2019060732A JP2020162343A JP 2020162343 A JP2020162343 A JP 2020162343A JP 2019060732 A JP2019060732 A JP 2019060732A JP 2019060732 A JP2019060732 A JP 2019060732A JP 2020162343 A JP2020162343 A JP 2020162343A
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- Prior art keywords
- grommet
- main body
- assembly hole
- seal portion
- diameter
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L5/00—Devices for use where pipes, cables or protective tubing pass through walls or partitions
- F16L5/02—Sealing
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B17/00—Insulators or insulating bodies characterised by their form
- H01B17/56—Insulating bodies
- H01B17/58—Tubes, sleeves, beads, or bobbins through which the conductor passes
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/22—Installations of cables or lines through walls, floors or ceilings, e.g. into buildings
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Insulating Bodies (AREA)
- Installation Of Indoor Wiring (AREA)
Abstract
Description
本開示は、ワイヤハーネスを保護するグロメットに関する。 The present disclosure relates to grommets that protect wire harnesses.
従来、車体パネルに設けられた孔にワイヤハーネスを通す場合、その孔部分の防水性を保つために、孔部分にはグロメットが取り付けられ、そのグロメットにワイヤハーネスが通される（特許文献１等参照）。 Conventionally, when a wire harness is passed through a hole provided in a vehicle body panel, a grommet is attached to the hole portion and the wire harness is passed through the grommet in order to maintain the waterproofness of the hole portion (Patent Document 1, etc.). reference).
ところで、車体パネルに設けられる孔は、サイズが様々である。このため、孔のサイズごとにグロメットを製造した場合、その分コスト増を招くおそれがあった。
そこで、部品のコスト減を可能にしたグロメットを提供することを目的とする。
By the way, the holes provided in the vehicle body panel vary in size. Therefore, if the grommet is manufactured for each hole size, the cost may be increased accordingly.
Therefore, it is an object of the present invention to provide a grommet that enables cost reduction of parts.
前記問題点を解決するグロメットは、筒状の接続部にワイヤハーネスが挿通され、前記接続部の根元部分に配設された本体部が組付孔に嵌め込むように組み付けられるグロメット本体と、前記組付孔の周縁と前記グロメット本体との間に設けられたシール部と、を備え、前記シール部は、前記グロメット本体の軸回りに沿って環状に前記組付孔の径に応じた外径を有して形成され、前記本体部に着脱可能に取り付けられている。 The grommet that solves the above problems includes a grommet main body in which a wire harness is inserted through a tubular connection portion and a main body portion disposed at the base of the connection portion is assembled so as to be fitted into an assembly hole. A seal portion provided between the peripheral edge of the assembly hole and the grommet main body is provided, and the seal portion has an outer diameter corresponding to the diameter of the assembly hole in an annular shape along the axis of the grommet main body. It is formed with a grommet, and is detachably attached to the main body.
本開示によれば、部品コストを低減することができる。 According to the present disclosure, the component cost can be reduced.
［本開示の実施形態の説明］
最初に本開示の実施形態を列記して説明する。
本開示のグロメットは、
［１］筒状の接続部にワイヤハーネスが挿通され、前記接続部の根元部分に配設された本体部が組付孔に嵌め込むように組み付けられるグロメット本体と、前記組付孔の周縁と前記グロメット本体との間に設けられたシール部と、を備え、前記シール部は、前記グロメット本体の軸回りに沿って環状に前記組付孔の径に応じた外径を有して形成され、前記本体部に着脱可能に取り付けられている。
[Explanation of Embodiments of the present disclosure]
First, the embodiments of the present disclosure will be listed and described.
The grommet of this disclosure is
[1] A grommet main body in which a wire harness is inserted through a tubular connection portion and the main body portion arranged at the base portion of the connection portion is assembled so as to be fitted into the assembly hole, and a peripheral edge of the assembly hole. A seal portion provided between the grommet main body and the grommet main body is provided, and the seal portion is formed to have an outer diameter corresponding to the diameter of the assembly hole in an annular shape along the axis of the grommet main body. , It is detachably attached to the main body.
この構成によれば、組付孔のサイズが異なっても、同一部品のグロメット本体に、組付孔の開口径に合ったシール部を取り付けるのみで、各々の組付孔の開口径に合ったグロメットとすることが可能となる。従って、グロメット本体の共用化が可能となるので、開口径が異なる組付孔ごとにグロメットを用意する必要がない。よって、グロメットの部品コストを低減できる。 According to this configuration, even if the size of the assembly hole is different, it is possible to match the opening diameter of each assembly hole by simply attaching a seal portion that matches the opening diameter of the assembly hole to the grommet body of the same part. It can be a grommet. Therefore, since the grommet main body can be shared, it is not necessary to prepare grommets for each assembly hole having a different opening diameter. Therefore, the cost of grommet parts can be reduced.
［２］前記グロメット本体において前記シール部が取り付けられる取付部の径は、環状の前記シール部の内径よりも大きく形成されていることが好ましい。
この構成によれば、シール部をグロメット本体にきつく取り付けることが可能となるので、シール部がグロメット本体から脱落することを生じ難くすることができる。
[2] It is preferable that the diameter of the attachment portion to which the seal portion is attached in the grommet main body is formed to be larger than the inner diameter of the annular seal portion.
According to this configuration, since the seal portion can be tightly attached to the grommet main body, it is possible to prevent the seal portion from falling off from the grommet main body.
［３］前記取付部は、前記グロメット本体の外周面において周方向に凹設された溝部であることが好ましい。
この構成によれば、シール部を溝部に嵌め込む構造により、シール部をグロメット本体にしっかりと固定することができる。
[3] The mounting portion is preferably a groove portion recessed in the circumferential direction on the outer peripheral surface of the grommet main body.
According to this configuration, the seal portion can be firmly fixed to the grommet body by the structure in which the seal portion is fitted into the groove portion.
［４］前記グロメット本体を前記組付孔に嵌め込む際に倒れて、前記グロメット本体の嵌め込みを許容し、前記グロメット本体が前記組付孔の奥まで挿し込まれると立ち上がって、前記組付孔からの抜け止めとなる係止片を備えることが好ましい。 [4] When the grommet body is fitted into the assembly hole, the grommet body falls down to allow the grommet body to be fitted, and when the grommet body is inserted deep into the assembly hole, the grommet body stands up and rises to the assembly hole. It is preferable to provide a locking piece that prevents the eyelet from coming off.
この構成によれば、グロメットを組付孔に挿し込む際には、この挿し込みを案内するように係止片が倒れ込む動きをとるので、グロメットを組付孔に挿し込み易くすることができる。また、グロメットを組付孔に奥まで挿し込んだ後は、係止部が立ち上がって組付孔の裏面側から係止するので、組付孔からグロメットを抜け難くすることもできる。 According to this configuration, when the grommet is inserted into the assembly hole, the locking piece moves so as to guide the insertion, so that the grommet can be easily inserted into the assembly hole. Further, after the grommet is inserted all the way into the assembly hole, the locking portion rises and locks from the back surface side of the assembly hole, so that it is possible to make it difficult for the grommet to come out from the assembly hole.
［５］前記グロメット本体において軸回りに沿って環状に設けられることにより、前記グロメット本体の変形を抑制する補強部を備えることが好ましい。
この構成によれば、グロメット本体の変形が補強部によって抑えられるので、シール部をグロメット本体に取り付けたときの隙間のない好適な取り付け状態を、長期間の間、維持することができる。
[5] It is preferable that the grommet main body is provided with a reinforcing portion that suppresses deformation of the grommet main body by being provided in an annular shape along the axis.
According to this configuration, the deformation of the grommet main body is suppressed by the reinforcing portion, so that a suitable mounting state without a gap when the seal portion is attached to the grommet main body can be maintained for a long period of time.
［本開示の実施形態の詳細］
本開示のグロメットの具体例を、以下に図面を参照しつつ説明する。なお、本発明はこれらの例示に限定されるものではなく、特許請求の範囲によって示され、特許請求の範囲と均等の意味および範囲内でのすべての変更が含まれることが意図される。各図面では、説明の便宜上、構成の一部を誇張又は簡略化して示す場合がある。また、各部分の寸法比率についても、実際とは異なる場合がある。
[Details of Embodiments of the present disclosure]
Specific examples of the grommet of the present disclosure will be described below with reference to the drawings. It should be noted that the present invention is not limited to these examples, and is indicated by the scope of claims, and is intended to include all modifications within the meaning and scope equivalent to the scope of claims. In each drawing, a part of the structure may be exaggerated or simplified for convenience of explanation. In addition, the dimensional ratio of each part may differ from the actual one.
図１及び図２に示すように、車載用のグロメット１は、グロメット１の本体部分をなすグロメット本体２と、グロメット１の取り付け箇所であるパネル３の組付孔４に対するシール性を持たせるシール部５とを備える。グロメット１は、組付孔４に通されるワイヤハーネス６を組付孔４から保護するための部材である。グロメット１は、例えば樹脂製であることが好ましい。パネル３は、車内外を区切る車体パネルである。 As shown in FIGS. 1 and 2, the in-vehicle grommet 1 is a seal having a sealing property between the grommet main body 2 forming the main body portion of the grommet 1 and the assembly hole 4 of the panel 3 where the grommet 1 is attached. A unit 5 is provided. The grommet 1 is a member for protecting the wire harness 6 passed through the assembly hole 4 from the assembly hole 4. The grommet 1 is preferably made of, for example, a resin. The panel 3 is a vehicle body panel that separates the inside and outside of the vehicle.
グロメット本体２は、本体部８と、ワイヤハーネス６が密着して挿通される筒状の接続部９とを備える。接続部９は、本体部８から斜め方向に突出した円筒状をなす。本体部８は、略楕円体状をなしている。グロメット１は、シール部５が取り付けられたグロメット本体２を組付孔４に嵌め込むようにしてパネル３に組み付けられる。なお、ワイヤハーネス６は、筒内部に電線が収容されたパイプ、筒が波形をなすコルゲート、電気信号を伝達する電線のいずれでもよい。 The grommet main body 2 includes a main body portion 8 and a tubular connecting portion 9 through which the wire harness 6 is closely inserted. The connecting portion 9 has a cylindrical shape protruding obliquely from the main body portion 8. The main body 8 has a substantially ellipsoidal shape. The grommet 1 is assembled to the panel 3 so that the grommet main body 2 to which the seal portion 5 is attached is fitted into the assembly hole 4. The wire harness 6 may be any of a pipe in which an electric wire is housed inside the cylinder, a corrugated cylinder having a corrugated shape, and an electric wire for transmitting an electric signal.
図３に示すように、接続部９には、ワイヤハーネス６が環状の介装品１０を介して組付固定されている。介装品１０は、例えばゴム等の樹脂材からなる。介装品１０は、自身の孔１１にワイヤハーネス６が挿通された状態で接続部９の孔９ａに内嵌される。なお、介装品１０は、ワイヤハーネス６及び接続部９に対し、それぞれ圧入固定されることが好ましい。 As shown in FIG. 3, a wire harness 6 is assembled and fixed to the connecting portion 9 via an annular accessory 10. The accessory 10 is made of a resin material such as rubber. The accessory 10 is fitted in the hole 9a of the connecting portion 9 with the wire harness 6 inserted through the hole 11 of the accessory 10. It is preferable that the accessory 10 is press-fitted and fixed to the wire harness 6 and the connecting portion 9, respectively.
図１及び図４に示すように、本体部８は、内部が中空の筒部１３と、筒部１３よりも大径に形成された鍔部１４と、グロメット１を組付孔４に組み付けた際の抜け止めとなる係止片１５とを備える。筒部１３は、グロメット本体２の軸方向片側が開口した略円筒状に形成されている。鍔部１４は、筒部１３が閉じられた側の周縁において、グロメット本体２の径方向外側に向かって突出するように軸Ｌ１回り一帯に形成されている。鍔部１４の先端には、係止片１５に向かって突出した突起１６が形成されている。グロメット本体２の接続部９に通されたワイヤハーネス６は、筒部１３の開口部１７からグロメット本体２の外部に引き出される。 As shown in FIGS. 1 and 4, the main body 8 has a tubular portion 13 having a hollow inside, a flange portion 14 formed to have a diameter larger than that of the tubular portion 13, and a grommet 1 assembled into the assembly hole 4. It is provided with a locking piece 15 that prevents the eyelet from coming off. The tubular portion 13 is formed in a substantially cylindrical shape in which one side in the axial direction of the grommet main body 2 is open. The flange portion 14 is formed around the axis L1 so as to project outward in the radial direction of the grommet main body 2 at the peripheral edge on the side where the tubular portion 13 is closed. A protrusion 16 protruding toward the locking piece 15 is formed at the tip of the collar portion 14. The wire harness 6 passed through the connecting portion 9 of the grommet main body 2 is pulled out from the opening 17 of the tubular portion 13 to the outside of the grommet main body 2.
係止片１５は、根元を支点した倒れ及び起き上がりが可能な自由端である。係止片１５は、グロメット本体２の軸Ｌ１回りに沿って周方向一帯に設けられている。係止片１５は、グロメット本体２を組付孔４に嵌め込む際に倒れて、グロメット１の嵌め込みを許容し、グロメット１が組付孔４の奥まで挿し込まれると立ち上がって、組付孔４からの抜け止めとなる。 The locking piece 15 is a free end capable of falling and rising with the root as a fulcrum. The locking piece 15 is provided in the circumferential direction along the axis L1 of the grommet main body 2. The locking piece 15 collapses when the grommet body 2 is fitted into the assembly hole 4, allows the grommet 1 to be fitted, and stands up when the grommet 1 is inserted all the way into the assembly hole 4 to allow the grommet 1 to be fitted. It will be a stopper from 4.
シール部５は、グロメット本体２の軸Ｌ１回りに沿って環状に形成されるとともに、組付孔４の周縁とグロメット本体２との間のシール性を保つべくグロメット本体２に取り付けられる。シール部５は、グロメット本体２に設けられた取付部１９に取り付けられている。取付部１９は、本体部８の外周面において周方向に凹設された溝部２０である。本例の溝部２０は、筒部１３の根元付近においてグロメット本体２の軸Ｌ１回り一帯に形成されている。溝部２０の径Ｒ１は、環状のシール部５の内径Ｒａ（図１参照）よりも大きく形成されている。 The seal portion 5 is formed in an annular shape along the axis L1 of the grommet main body 2, and is attached to the grommet main body 2 in order to maintain a sealing property between the peripheral edge of the assembly hole 4 and the grommet main body 2. The seal portion 5 is attached to an attachment portion 19 provided on the grommet main body 2. The mounting portion 19 is a groove portion 20 recessed in the circumferential direction on the outer peripheral surface of the main body portion 8. The groove portion 20 of this example is formed in the vicinity of the root of the tubular portion 13 around the axis L1 of the grommet main body 2. The diameter R1 of the groove portion 20 is formed to be larger than the inner diameter Ra (see FIG. 1) of the annular seal portion 5.
図４に示すように、シール部５は、組付孔４の開口径に応じた外径Ｒｂのものが選択されてグロメット本体２に組み付けられている。すなわち、組付孔４の開口径が異なる場合でも、同じグロメット本体２が使用できるように、組付孔４の開口径に応じた外径を持つシール部５が選択されている。例えば、組付孔４の開口径が小さい場合、外径Ｒｂが小さめのシール部５が使用され、組付孔４の開口径が大きい場合、外径Ｒｂが大きめのシール部５が使用される。 As shown in FIG. 4, the seal portion 5 having an outer diameter Rb corresponding to the opening diameter of the assembly hole 4 is selected and assembled to the grommet main body 2. That is, the seal portion 5 having an outer diameter corresponding to the opening diameter of the assembly hole 4 is selected so that the same grommet main body 2 can be used even if the opening diameter of the assembly hole 4 is different. For example, when the opening diameter of the assembly hole 4 is small, the seal portion 5 having a small outer diameter Rb is used, and when the opening diameter of the assembly hole 4 is large, the seal portion 5 having a large outer diameter Rb is used. ..
シール部５は、グロメット本体２に対して３つのシール面Ｓで接触されている。本例のシール面Ｓは、シール部５がグロメット本体２の径方向において溝部２０に接触するシール面Ｓを「Ｓ１」とし、シール部５が溝部２０内において鍔部１４側で接触するシール面Ｓを「Ｓ２」とし、シール部５が溝部２０内において係止片１５側で接触するシール面Ｓを「Ｓ３」とする。グロメット１が組付孔４に組み付けられた場合、この３つのシール面Ｓ１，Ｓ２，Ｓ３によって、車内外の密閉性が保たれる。 The seal portion 5 is in contact with the grommet main body 2 with three sealing surfaces S. In the seal surface S of this example, the seal surface S in which the seal portion 5 contacts the groove portion 20 in the radial direction of the grommet body 2 is defined as “S1”, and the seal portion 5 contacts the flange portion 14 side in the groove portion 20. Let S be "S2", and let "S3" be the seal surface S in which the seal portion 5 comes into contact with the locking piece 15 in the groove portion 20. When the grommet 1 is assembled in the assembly hole 4, the three sealing surfaces S1, S2, and S3 maintain the airtightness inside and outside the vehicle.
グロメット１が組付孔４に組み付けられた際、係止片１５及び突起１６でパネル３を挟み込む組み付け状態をとる。この場合、突起１６がパネル３に密着することにより、この部分がシール部（シール面）となる。また、係止片１５がパネル３に密着することにより、この部分がシール部（シール面）となる。このように、シール部５のみならず、グロメット本体２でもパネル３とのシール性が保たれる。 When the grommet 1 is assembled into the assembly hole 4, the panel 3 is sandwiched between the locking piece 15 and the protrusion 16. In this case, the protrusion 16 comes into close contact with the panel 3, so that this portion becomes a sealing portion (sealing surface). Further, when the locking piece 15 is in close contact with the panel 3, this portion becomes a seal portion (seal surface). In this way, not only the sealing portion 5 but also the grommet main body 2 can maintain the sealing property with the panel 3.
次に、図５及び図６を用いて、本実施形態のグロメット１の作用について説明する。
図５Ａ及び図５Ｂに示すように、グロメット１を組付孔４に組み付ける場合、組付孔４の開口径に合った外径Ｒｂのシール部５を選択してグロメット本体２に組み付ける。例えば、図５Ａに示すように、開口径が「Ｗ１」の組付孔４にグロメット１を取り付ける場合は、この径Ｗ１に合うサイズの外径Ｒｂ１のシール部５ａをグロメット本体２に取り付ける。このように、組付孔４が小さめの場合、外径サイズが小さいシール部５ａが選択される。
Next, the action of the grommet 1 of the present embodiment will be described with reference to FIGS. 5 and 6.
As shown in FIGS. 5A and 5B, when the grommet 1 is assembled to the assembly hole 4, a seal portion 5 having an outer diameter Rb suitable for the opening diameter of the assembly hole 4 is selected and assembled to the grommet main body 2. For example, as shown in FIG. 5A, when the grommet 1 is attached to the assembly hole 4 having an opening diameter of “W1”, the seal portion 5a having an outer diameter Rb1 having a size matching the diameter W1 is attached to the grommet main body 2. As described above, when the assembly hole 4 is small, the seal portion 5a having a small outer diameter size is selected.
図６Ａ及び図６Ｂに示すように、グロメット１を組付孔４に組み付ける際、係止片１５が組付孔４の周縁に接触すると、組付孔４の周縁に押されることにより、係止片１５が根元を支点にして同図の矢印Ａ方向に沿って倒れ込む。よって、グロメット１を組付孔４に組み付ける際に挿し込み易くなる。図６Ｃに示すように、グロメット１が組付孔４に奥まで挿し込まれると、シール部５が組付孔４の周縁に接触し、組付孔４に位置決めされた状態となる。また、このとき、係止片１５が根元を支点に同図の矢印Ｂ方向に立ち上がり、係止片１５の先端がパネル３の内面に係止可能になる。これにより、パネル３へのグロメット１の組み付けが完了する。 As shown in FIGS. 6A and 6B, when the grommet 1 is assembled into the assembly hole 4, when the locking piece 15 comes into contact with the peripheral edge of the assembly hole 4, it is pushed by the peripheral edge of the assembly hole 4 to lock the grommet 1. The piece 15 collapses along the arrow A direction in the figure with the root as a fulcrum. Therefore, it becomes easy to insert the grommet 1 when assembling it into the assembling hole 4. As shown in FIG. 6C, when the grommet 1 is inserted all the way into the assembly hole 4, the seal portion 5 comes into contact with the peripheral edge of the assembly hole 4 and is positioned in the assembly hole 4. At this time, the locking piece 15 rises in the direction of arrow B in the figure with the root as a fulcrum, and the tip of the locking piece 15 can be locked to the inner surface of the panel 3. As a result, the assembly of the grommet 1 to the panel 3 is completed.
また、図５Ｂに示すように、径が「Ｗ２」の組付孔４にグロメット１を取り付ける場合は、この径Ｗ２に合うサイズの外径Ｒｂ２のシール部５ｂをグロメット本体２に取り付ける。このように、組付孔４が大きめの場合、外径サイズが大きいシール部５ｂをグロメット本体２に取り付ける。そして、サイズが小さいシール部５ａが取り付けられたグロメット１を組み付けるときと同様の手順で、サイズが大きいシール部５ｂが取り付けられたグロメット１を組付孔４に組み付ける。 Further, as shown in FIG. 5B, when the grommet 1 is attached to the assembly hole 4 having a diameter of “W2”, the seal portion 5b of the outer diameter Rb2 having a size suitable for the diameter W2 is attached to the grommet main body 2. In this way, when the assembly hole 4 is large, the seal portion 5b having a large outer diameter size is attached to the grommet main body 2. Then, the grommet 1 to which the large-sized seal portion 5b is attached is assembled to the assembly hole 4 in the same procedure as when the grommet 1 to which the small-sized seal portion 5a is attached is assembled.
上記実施形態のグロメット１によれば、以下のような効果を得ることができる。
グロメット本体２に取り付けられるシール部５は、グロメット１の組付先である組付孔４の径Ｗ１，Ｗ２に応じた外径のものが適宜選択されて取り付けられる。このため、組付孔４のサイズが異なっても、同一部品のグロメット本体２に、組付孔４の開口経に合ったシール部５を取り付けるのみで、各々の組付孔４の開口径に合ったグロメット１とすることが可能となる。従って、グロメット本体２の共用化が可能となるので、開口径が異なる組付孔４ごとにグロメット１を用意する必要がない。よって、グロメット１の部品コストを低減することができる。
According to the grommet 1 of the above embodiment, the following effects can be obtained.
As the seal portion 5 attached to the grommet main body 2, those having an outer diameter corresponding to the diameters W1 and W2 of the assembly hole 4 to which the grommet 1 is assembled are appropriately selected and attached. Therefore, even if the size of the assembly hole 4 is different, the opening diameter of each assembly hole 4 can be adjusted by simply attaching the seal portion 5 that matches the opening diameter of the assembly hole 4 to the grommet main body 2 of the same part. It is possible to make a matching grommet 1. Therefore, since the grommet main body 2 can be shared, it is not necessary to prepare the grommet 1 for each assembly hole 4 having a different opening diameter. Therefore, the component cost of the grommet 1 can be reduced.
グロメット本体２においてシール部５が取り付けられる取付部１９の径Ｒ１は、環状のシール部５の内径よりも大きく形成されている。よって、シール部５をグロメット本体２にきつく取り付けることが可能となるので、シール部５がグロメット本体２から脱落することを生じ難くすることができる。 The diameter R1 of the attachment portion 19 to which the seal portion 5 is attached in the grommet main body 2 is formed to be larger than the inner diameter of the annular seal portion 5. Therefore, since the seal portion 5 can be tightly attached to the grommet main body 2, it is possible to prevent the seal portion 5 from falling off from the grommet main body 2.
グロメット本体２の取付部１９は、グロメット本体２の外周面において周方向に凹設された溝部２０からなる。よって、シール部５を溝部２０に嵌め込む構造により、シール部５をグロメット本体２にしっかりと固定することができる。 The mounting portion 19 of the grommet main body 2 is composed of a groove portion 20 recessed in the circumferential direction on the outer peripheral surface of the grommet main body 2. Therefore, the seal portion 5 can be firmly fixed to the grommet main body 2 by the structure in which the seal portion 5 is fitted into the groove portion 20.
グロメット本体２を組付孔４に嵌め込む際に倒れて、グロメット本体２の嵌め込みを許容し、グロメット本体２が組付孔４の奥まで挿し込まれると立ち上がって、組付孔４からの抜け止めとなる係止片１５を、グロメット１に設けた。このため、グロメット１を組付孔４に挿し込む際には、この挿込を案内するように係止片１５が倒れ込む動きをとるので、グロメット１を組付孔４に挿し込み易くすることができる。また、グロメット１を組付孔４に奥まで挿し込んだ後は、係止片１５が立ち上がって組付孔４の裏面側から係止するので、組付孔４からグロメット１を抜け難くすることもできる。 When the grommet body 2 is fitted into the assembly hole 4, it collapses to allow the grommet body 2 to be fitted, and when the grommet body 2 is inserted all the way into the assembly hole 4, it stands up and comes out of the assembly hole 4. A locking piece 15 as a stopper was provided on the grommet 1. Therefore, when the grommet 1 is inserted into the assembly hole 4, the locking piece 15 moves to fall down so as to guide the insertion, so that the grommet 1 can be easily inserted into the assembly hole 4. it can. Further, after the grommet 1 is inserted all the way into the assembly hole 4, the locking piece 15 stands up and locks from the back surface side of the assembly hole 4, so that the grommet 1 cannot be easily removed from the assembly hole 4. You can also.
また、径の異なるシール部５を複数用意しておく思想は、ワイヤハーネス６及び接続部９の間に取り付けられる介装品１０にも適用できる。この場合、接続部９の径、すなわち接続部９の孔９ａの大きさに応じた外径を有する介装品１０を複数種類用意しておく。そして、ワイヤハーネス６をグロメット１の接続部９の孔９ａに挿通する際、孔９ａの径に合う介装品１０を介装させて、接続部９に通す。こうすれば、接続部９の径が異なる場合に対応でき、かつワイヤハーネス６の箇所でのシール性も保つことができる。 Further, the idea of preparing a plurality of seal portions 5 having different diameters can be applied to the accessory 10 attached between the wire harness 6 and the connection portion 9. In this case, a plurality of types of accessories 10 having an outer diameter corresponding to the diameter of the connecting portion 9, that is, the size of the hole 9a of the connecting portion 9 are prepared. Then, when the wire harness 6 is inserted into the hole 9a of the connection portion 9 of the grommet 1, an accessory 10 matching the diameter of the hole 9a is interposed and passed through the connection portion 9. By doing so, it is possible to cope with the case where the diameters of the connecting portions 9 are different, and it is possible to maintain the sealing property at the location of the wire harness 6.
なお、本実施形態は、以下のように変更して実施することができる。本実施形態及び以下の変更例は、技術的に矛盾しない範囲で互いに組み合わせて実施することができる。
・図７及び図８に示すように、グロメット１は、グロメット本体２の変形を抑制する補強部３１を備えてもよい。この場合、グロメット本体２の変形が補強部３１によって抑えられるので、シール部５をグロメット本体２に取り付けたときの隙間のない初期の好適な取り付け状態を、長期間の間、維持することができる。
In addition, this embodiment can be implemented by changing as follows. The present embodiment and the following modified examples can be implemented in combination with each other within a technically consistent range.
-As shown in FIGS. 7 and 8, the grommet 1 may include a reinforcing portion 31 that suppresses deformation of the grommet main body 2. In this case, since the deformation of the grommet main body 2 is suppressed by the reinforcing portion 31, it is possible to maintain an initial suitable mounting state without a gap when the sealing portion 5 is attached to the grommet main body 2 for a long period of time. ..
・接続部９の個数は、１つに限定されず、複数としてもよい。
・接続部９には、複数のワイヤハーネス６が通される構成としてもよい。
・シール部５の断面形状は、四角形状に限定されず、例えば丸形状や、四角以外の多角形状でもよい。
-The number of connecting portions 9 is not limited to one, and may be plural.
A plurality of wire harnesses 6 may be passed through the connecting portion 9.
The cross-sectional shape of the seal portion 5 is not limited to a square shape, and may be, for example, a round shape or a polygonal shape other than a square shape.
・シール面Ｓは、Ｓ１〜Ｓ３の３面を有する構造に限定されず、例えばシール面Ｓ１のみの構造としてもよい。
・係止片１５は、グロメット本体２の周方向全域に限定されずことに限定されず、周方向において断続的に形成されてもよい。
The seal surface S is not limited to a structure having three surfaces S1 to S3, and may be, for example, a structure having only the seal surface S1.
The locking piece 15 is not limited to the entire circumferential direction of the grommet main body 2, and may be formed intermittently in the circumferential direction.
・係止片１５の形状は、根元を支点に倒れたり起き上がったりする自由端に限定されず、例えば所定量肉厚に形成された樹脂製の突部でもよい。この場合も、樹脂の弾性変形により、係止片１５のときと同様の作用効果を得ることができる。 The shape of the locking piece 15 is not limited to the free end that falls or rises with the root as a fulcrum, and may be, for example, a resin protrusion formed to a predetermined thickness. Also in this case, due to the elastic deformation of the resin, the same action and effect as in the case of the locking piece 15 can be obtained.
・鍔部１４は、グロメット本体２の平面方向に大きく飛び出す形状に限定されず、シール部５を嵌め込む溝部２０を構成できる程度に突出していればよい。
・筒部１３は、溝部２０を有するように一部が段状に形成された形状に限定されず、この溝部２０が省略された平坦な形状としてもよい。この構成の場合、グロメット本体２にシール部５が取り付けられた際、例えば鍔部１４や係止片１５をシール部５の抜け止めとすればよい。
The flange portion 14 is not limited to a shape that greatly protrudes in the plane direction of the grommet main body 2, and may protrude to such an extent that a groove portion 20 into which the seal portion 5 is fitted can be formed.
The tubular portion 13 is not limited to a shape in which a part thereof is formed in a stepped shape so as to have a groove portion 20, and the tubular portion 20 may be a flat shape in which the groove portion 20 is omitted. In the case of this configuration, when the seal portion 5 is attached to the grommet main body 2, for example, the collar portion 14 or the locking piece 15 may be used to prevent the seal portion 5 from coming off.
・取付部１９は、溝部２０に限定されず、シール部５を固定できる形状の部位であればよい。
・グロメット１は、車載用に限定されず、他の装置や機器に使用されてもよい。
-The mounting portion 19 is not limited to the groove portion 20, and may be a portion having a shape that can fix the seal portion 5.
-The grommet 1 is not limited to in-vehicle use, and may be used in other devices and devices.
１…グロメット
２…グロメット本体
３…パネル
４…組付孔
５…シール部
６…ワイヤハーネス
８…本体部
９…接続部
１１…孔
１３…筒部
１４…鍔部
１５…係止片
１６…突起
１７…開口部
１９…取付部
２０…溝部
３１…補強部
1 ... Grommet 2 ... Grommet body 3 ... Panel 4 ... Assembly hole 5 ... Seal part 6 ... Wire harness 8 ... Body part 9 ... Connection part 11 ... Hole 13 ... Cylinder part 14 ... Flange part 15 ... Locking piece 16 ... Protrusion 17 ... Opening 19 ... Mounting 20 ... Grommet 31 ... Reinforcing
Claims (5)
前記組付孔の周縁と前記グロメット本体との間に設けられたシール部と、を備え、
前記シール部は、前記グロメット本体の軸回りに沿って環状に前記組付孔の径に応じた外径を有して形成され、前記本体部に着脱可能に取り付けられている
グロメット。 A grommet main body in which a wire harness is inserted through a tubular connection portion and the main body portion arranged at the base of the connection portion is assembled so as to fit into an assembly hole.
A seal portion provided between the peripheral edge of the assembly hole and the grommet main body is provided.
The seal portion is formed so as to have an outer diameter corresponding to the diameter of the assembly hole in an annular shape along the axis of the grommet main body, and is detachably attached to the main body portion.
請求項１に記載のグロメット。 The grommet according to claim 1, wherein the diameter of the attachment portion to which the seal portion is attached in the grommet body is formed to be larger than the inner diameter of the annular seal portion.
請求項２に記載のグロメット。 The grommet according to claim 2, wherein the mounting portion is a groove portion recessed in the circumferential direction on the outer peripheral surface of the grommet main body.
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。 When the grommet body is fitted into the assembly hole, the grommet body falls down to allow the grommet body to be fitted, and when the grommet body is inserted all the way into the assembly hole, the grommet body stands up from the assembly hole. The grommet according to any one of claims 1 to 3, further comprising a locking piece that prevents the grommet from coming off.
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。 The grommet according to any one of claims 1 to 4, further comprising a reinforcing portion that suppresses deformation of the grommet body by being provided in an annular shape along the axis of the grommet body.
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| Application Number | Priority Date | Filing Date | Title |
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| JP2019060732A JP7151584B2 (en) | 2019-03-27 | 2019-03-27 | Grommet |
| PCT/JP2019/050310 WO2020194946A1 (en) | 2019-03-27 | 2019-12-23 | Grommet |
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| JP2019060732A JP7151584B2 (en) | 2019-03-27 | 2019-03-27 | Grommet |
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| JP7151584B2 JP7151584B2 (en) | 2022-10-12 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09318057A (en) * | 1996-05-27 | 1997-12-12 | Rinnai Corp | Seal structure, packing and equipment using seal structure |
| JP2000358313A (en) * | 1999-06-11 | 2000-12-26 | Sumitomo Wiring Syst Ltd | Grommet and mounting method thereof |
| JP2002262440A (en) * | 2001-03-02 | 2002-09-13 | Sumitomo Wiring Syst Ltd | Grommet |
| JP2003227772A (en) * | 2002-02-01 | 2003-08-15 | Yazaki Corp | Seal inspection apparatus |
| JP2013236536A (en) * | 2012-05-07 | 2013-11-21 | Delphi Technologies Inc | Grommet |
| JP2017131055A (en) * | 2016-01-21 | 2017-07-27 | 住友電装株式会社 | Grommet |
-
2019
- 2019-03-27 JP JP2019060732A patent/JP7151584B2/en active Active
- 2019-12-23 WO PCT/JP2019/050310 patent/WO2020194946A1/en active Application Filing
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09318057A (en) * | 1996-05-27 | 1997-12-12 | Rinnai Corp | Seal structure, packing and equipment using seal structure |
| JP2000358313A (en) * | 1999-06-11 | 2000-12-26 | Sumitomo Wiring Syst Ltd | Grommet and mounting method thereof |
| JP2002262440A (en) * | 2001-03-02 | 2002-09-13 | Sumitomo Wiring Syst Ltd | Grommet |
| JP2003227772A (en) * | 2002-02-01 | 2003-08-15 | Yazaki Corp | Seal inspection apparatus |
| JP2013236536A (en) * | 2012-05-07 | 2013-11-21 | Delphi Technologies Inc | Grommet |
| JP2017131055A (en) * | 2016-01-21 | 2017-07-27 | 住友電装株式会社 | Grommet |
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| JP7151584B2 (en) | 2022-10-12 |
| WO2020194946A1 (en) | 2020-10-01 |
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