JP2016058336A - Rubber plug - Google Patents

Rubber plug Download PDF

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Publication number
JP2016058336A
JP2016058336A JP2014185958A JP2014185958A JP2016058336A JP 2016058336 A JP2016058336 A JP 2016058336A JP 2014185958 A JP2014185958 A JP 2014185958A JP 2014185958 A JP2014185958 A JP 2014185958A JP 2016058336 A JP2016058336 A JP 2016058336A
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rubber plug
hole
electric wire
lip
wire insertion
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JP2014185958A
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Japanese (ja)
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諒 藤川
Ryo Fujikawa
諒 藤川
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Yazaki Corp
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Yazaki Corp
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Priority to JP2014185958A priority Critical patent/JP2016058336A/en
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Abstract

PROBLEM TO BE SOLVED: To provide a rubber plug capable of improving sealability and insertion property with a simple structure.SOLUTION: A rubber plug 1 includes: a wire insertion part 3, into which a wire is inserted, whose inner circumferential surface is adhered to an outer circumferential surface; and a lip part 7, provided at an outer circumference of the wire insertion part 3, whose outer circumferential surface is adhered to an inner circumferential surface of a hole part 5. Between the wire insertion part 3 and the lip part 7, a space part 9 communicated to the hole part 5 is provided by separating an outer circumference of the wire insertion part 3 and an inner circumference of the lip part 7.SELECTED DRAWING: Figure 2

Description

本発明は、ゴム栓に関する。詳細には、孔部とこの孔部に挿通される電線との間を防水するゴム栓に関する。   The present invention relates to a rubber plug. Specifically, the present invention relates to a rubber stopper that waterproofs a hole and a wire inserted through the hole.

従来、ゴム栓としては、電線が挿通され内周面が電線の外周面に密着する電線挿通部としての電線嵌合孔と、この電線嵌合孔の外周に設けられ外周面が孔部としての挿入孔の内周面に密着するリップ部としてのシール部とを備えたものが知られている（例えば、特許文献１参照）。   Conventionally, as a rubber plug, an electric wire fitting hole as an electric wire insertion portion where an electric wire is inserted and an inner peripheral surface thereof is in close contact with the outer peripheral surface of the electric wire, and an outer peripheral surface provided as an outer peripheral portion of the electric wire fitting hole What is provided with the seal part as a lip part closely_contact | adhered to the internal peripheral surface of an insertion hole is known (for example, refer patent document 1).

このゴム栓では、挿入孔の内径と、電線の外径と、シール部の外径と、電線嵌合孔の内径とから算出される潰し率と潰し量とを設定することにより、挿入孔と電線との間の良好なシール性と挿入孔への良好な挿入性を得ている。   In this rubber stopper, by setting the crushing rate and the crushing amount calculated from the inner diameter of the insertion hole, the outer diameter of the electric wire, the outer diameter of the seal portion, and the inner diameter of the electric wire fitting hole, Good sealing property between the electric wires and good insertion property into the insertion hole are obtained.

特開２００３−２７２７５８号公報JP 2003-272758 A

しかしながら、上記特許文献１のようなゴム栓では、複数箇所の内径や外径から算出される潰し率と潰し量とを設定するので、設定が複雑であった。加えて、熱などの環境変化によるゴム栓の永久変形によって設定が異なることがあり、シール性が低下してしまう恐れがあった。   However, in the rubber plug as described in Patent Document 1, since the crushing rate and the crushing amount calculated from the inner diameter and outer diameter at a plurality of locations are set, the setting is complicated. In addition, the setting may differ depending on the permanent deformation of the rubber plug due to environmental changes such as heat, which may reduce the sealing performance.

そこで、この発明は、簡易な構造でシール性と挿入性とを向上することができるゴム栓の提供を目的としている。   Therefore, an object of the present invention is to provide a rubber plug that can improve sealing performance and insertion performance with a simple structure.

請求項１記載の発明は、電線が挿通され内周面が前記電線の外周面に密着する電線挿通部と、この電線挿通部の外周に設けられ外周面が孔部の内周面に密着するリップ部とを備えたゴム栓であって、前記電線挿通部と前記リップ部との間には、前記電線挿通部の外周と前記リップ部の内周とを離間させ、前記孔部に連通された空間部が設けられていることを特徴とする。   According to the first aspect of the present invention, there is provided an electric wire insertion portion in which the electric wire is inserted and an inner peripheral surface thereof is in close contact with the outer peripheral surface of the electric wire, and an outer peripheral surface provided on the outer periphery of the electric wire insertion portion is in close contact with the inner peripheral surface of the hole portion. A rubber plug provided with a lip portion, wherein an outer periphery of the wire insertion portion and an inner periphery of the lip portion are separated from the wire insertion portion and the lip portion, and communicated with the hole portion. It is characterized in that a space portion is provided.

このゴム栓では、電線挿通部とリップ部との間に、電線挿通部の外周とリップ部の内周とを離間させ、孔部に連通された空間部が設けられているので、孔部から空間部に圧力がかかった場合、リップ部の孔部に対する密着力と電線挿通部の電線に対する密着力とが増し、孔部と電線との間のシール性を向上することができる。   In this rubber plug, since the outer periphery of the wire insertion portion and the inner periphery of the lip portion are separated between the wire insertion portion and the lip portion, and a space portion that is communicated with the hole portion is provided, When pressure is applied to the space portion, the adhesion force of the lip portion with respect to the hole portion and the adhesion force of the electric wire insertion portion with respect to the electric wire increase, and the sealing performance between the hole portion and the electric wire can be improved.

また、空間部は、ゴム栓の孔部への挿入時に、リップ部を撓ませ易くするので、ゴム栓の孔部に対する挿入力を低減することができ、ゴム栓の孔部への挿入性を向上することができる。   In addition, the space portion makes it easy to bend the lip portion when the rubber plug is inserted into the hole portion of the rubber plug, so that the insertion force of the rubber plug into the hole portion can be reduced, and the insertion property of the rubber plug into the hole portion can be reduced. Can be improved.

従って、このようなゴム栓では、簡易な構造でシール性と挿入性とを向上することができる。   Therefore, such a rubber plug can improve sealing performance and insertion performance with a simple structure.

請求項２記載の発明は、請求項１記載のゴム栓であって、前記空間部は、前記電線挿通部と前記リップ部との周方向の全域に設けられていることを特徴とする。   A second aspect of the present invention is the rubber plug according to the first aspect, wherein the space portion is provided in the entire area in the circumferential direction of the wire insertion portion and the lip portion.

このゴム栓では、空間部が、電線挿通部とリップ部との周方向の全域に設けられているので、ゴム栓の周方向の全域で孔部と電線とに対する密着力を均一に増加することができると共に、リップ部を周方向の全域で撓ませ易くすることができ、ゴム栓の周方向の全域で孔部に対する挿入力を均一に低減することができる。   In this rubber plug, since the space is provided in the whole area in the circumferential direction between the wire insertion part and the lip part, the adhesion force between the hole and the electric wire can be increased uniformly in the whole area in the circumferential direction of the rubber plug. In addition, the lip portion can be easily bent in the entire circumferential direction, and the insertion force to the hole portion can be reduced uniformly in the entire circumferential direction of the rubber plug.

本発明によれば、簡易な構造でシール性と挿入性とを向上することができるゴム栓を提供することができるという効果を奏する。   According to the present invention, there is an effect that it is possible to provide a rubber stopper capable of improving sealing performance and insertion performance with a simple structure.

本発明の実施の形態に係るゴム栓の斜視図である。It is a perspective view of the rubber stopper which concerns on embodiment of this invention. 本発明の実施の形態に係るゴム栓の断面図である。It is sectional drawing of the rubber stopper which concerns on embodiment of this invention.

図１，図２を用いて本発明の実施の形態に係るゴム栓について説明する。   A rubber plug according to an embodiment of the present invention will be described with reference to FIGS.

本実施の形態に係るゴム栓１は、電線（不図示）が挿通され内周面が電線の外周面に密着する電線挿通部３と、この電線挿通部３の外周に設けられ外周面が孔部５の内周面に密着するリップ部７とを備えている。   The rubber plug 1 according to the present embodiment includes an electric wire insertion portion 3 in which an electric wire (not shown) is inserted and an inner peripheral surface thereof is in close contact with the outer peripheral surface of the electric wire, and an outer peripheral surface provided on the outer periphery of the electric wire insertion portion 3. And a lip portion 7 that is in close contact with the inner peripheral surface of the portion 5.

そして、電線挿通部３とリップ部７との間には、電線挿通部３の外周とリップ部７の内周とを離間させ、孔部５に連通された空間部９が設けられている。   And between the electric wire insertion part 3 and the lip | rip part 7, the space part 9 which spaced apart the outer periphery of the electric wire insertion part 3 and the inner periphery of the lip | rip part 7, and was connected to the hole part 5 is provided.

また、空間部９は、電線挿通部３とリップ部７との周方向の全域に設けられている。   The space portion 9 is provided in the entire circumferential direction between the wire insertion portion 3 and the lip portion 7.

ここで、図２に示すように、本実施の形態に係るゴム栓１は、例えば、電源や機器などに接続され端末部に端子（不図示）が設けられた電線（不図示）が電線挿通部３に挿通された状態で、端子を収容可能なハウジング１１に設けられた孔部５に挿入される。   Here, as shown in FIG. 2, the rubber plug 1 according to the present embodiment has, for example, an electric wire (not shown) connected to a power source or equipment and provided with a terminal (not shown) at the terminal portion. In a state of being inserted through the portion 3, it is inserted into the hole portion 5 provided in the housing 11 that can accommodate the terminal.

このゴム栓１が孔部５に挿入された状態では、電線挿通部３の内周面が電線の外周面に密着し、電線挿通部３の外周に設けられた複数のリップ部７の外周面が孔部５の内周面に密着し、ハウジング１１の内部を防水する。以下、図１，図２を用いてゴム栓１について詳細に説明する。   In a state where the rubber plug 1 is inserted into the hole 5, the inner peripheral surface of the wire insertion portion 3 is in close contact with the outer peripheral surface of the electric wire, and the outer peripheral surfaces of the plurality of lip portions 7 provided on the outer periphery of the wire insertion portion 3. Adheres to the inner peripheral surface of the hole 5 and waterproofs the inside of the housing 11. Hereinafter, the rubber plug 1 will be described in detail with reference to FIGS.

図１，図２に示すように、ゴム栓１は、絶縁性の合成ゴムなどの弾性材料からなり、円筒状の本体部１３に電線挿通部３と、複数のリップ部７と、空間部９とが設けられている。   As shown in FIGS. 1 and 2, the rubber plug 1 is made of an elastic material such as an insulating synthetic rubber, and has a cylindrical body portion 13, a wire insertion portion 3, a plurality of lip portions 7, and a space portion 9. And are provided.

電線挿通部３は、本体部１３の中央部に本体部１３を長さ方向に貫通して設けられている。この電線挿通部３は、電線の端末部に端子が接続される前の状態で、内周面が電線の外周面に密着して組付けられる。   The electric wire insertion part 3 is provided in the central part of the main body part 13 so as to penetrate the main body part 13 in the length direction. This electric wire insertion part 3 is assembled in a state where the inner peripheral surface is in close contact with the outer peripheral surface of the electric wire in a state before the terminal is connected to the terminal portion of the electric wire.

なお、本体部１３には、電線の端末部に設けられる端子に加締めなどによって固定される固定部１５が設けられている。このような電線挿通部３の外周側には、複数のリップ部７が設けられている。   The main body portion 13 is provided with a fixing portion 15 that is fixed to a terminal provided at a terminal portion of the electric wire by caulking or the like. A plurality of lip portions 7 are provided on the outer peripheral side of such a wire insertion portion 3.

複数のリップ部７は、本体部１３の外周にゴム栓１の長さ方向に所定の間隔をもって、ゴム栓１の周方向に連続する突条となるようにゴム栓１の長さ方向に複数列（ここでは２列）設けられている。なお、図２の左側に位置する本体部１３の外径をリップ部７の外径と同等に設定し、この部分をリップ部７として機能させてもよい。   The plurality of lip portions 7 are provided in the length direction of the rubber plug 1 so as to form ridges continuous in the circumferential direction of the rubber plug 1 with a predetermined interval on the outer periphery of the main body portion 13 in the length direction of the rubber plug 1. Rows (here, two rows) are provided. 2 may be set to be equal to the outer diameter of the lip portion 7, and this portion may function as the lip portion 7.

この複数のリップ部７は、外径が孔部５の内径より僅かに大きく設定されており、端子をハウジング１１内に収容させる際に、孔部５に挿入され、端子をハウジング１１に保持させると、外周面が孔部５の内周面に密着して配置される。   The plurality of lip portions 7 have an outer diameter set slightly larger than the inner diameter of the hole portion 5, and are inserted into the hole portion 5 to hold the terminal in the housing 11 when the terminal is accommodated in the housing 11. The outer peripheral surface is disposed in close contact with the inner peripheral surface of the hole 5.

このような複数のリップ部７のうち少なくとも１つのリップ部７（ここでは図２の左側に位置するリップ部７）と電線挿通部３との径方向間には、空間部９が設けられている。   A space portion 9 is provided between at least one lip portion 7 (here, the lip portion 7 located on the left side in FIG. 2) and the electric wire insertion portion 3 among the plurality of lip portions 7. Yes.

空間部９は、本体部１３の電線挿通部３とリップ部７との径方向間に設けられ、電線挿通部３の外周とリップ部７の内周とを離間させるように形成された孔となっており、ゴム栓１の長さ方向の一端側が孔部５と連通するように開口されている。また、空間部９は、電線挿通部３の外周とリップ部７の内周との周方向の全域に設けられている。   The space portion 9 is provided between the wire insertion portion 3 and the lip portion 7 in the main body portion 13 in the radial direction, and is formed with a hole formed so as to separate the outer periphery of the wire insertion portion 3 and the inner periphery of the lip portion 7. The rubber plug 1 is opened so that one end side in the length direction of the rubber plug 1 communicates with the hole 5. Further, the space portion 9 is provided in the entire region in the circumferential direction between the outer periphery of the wire insertion portion 3 and the inner periphery of the lip portion 7.

この空間部９は、ゴム栓１を孔部５に挿入する場合、リップ部７を撓ませ易くさせ、ゴム栓１の孔部５に対する挿入力を低減させる。   When the rubber plug 1 is inserted into the hole portion 5, the space portion 9 makes the lip portion 7 easy to bend and reduces the insertion force of the rubber plug 1 into the hole portion 5.

このとき、空間部９は、ゴム栓１の周方向の全域に設けられているので、リップ部７を周方向の全域で撓ませ易くすることができ、ゴム栓１の周方向の全域で孔部５に対する挿入力を均一に低減することができる。   At this time, since the space portion 9 is provided in the entire region in the circumferential direction of the rubber plug 1, the lip portion 7 can be easily bent in the entire region in the circumferential direction. The insertion force with respect to the part 5 can be reduced uniformly.

一方、空間部９は、ゴム栓１が孔部５に挿入されている場合、孔部５に連通されているので、孔部５から空間部９に圧力がかかった場合に、リップ部７の孔部５に対する密着力と電線挿通部３の電線に対する密着力とを増加させる。   On the other hand, the space portion 9 communicates with the hole portion 5 when the rubber plug 1 is inserted into the hole portion 5, so that when pressure is applied to the space portion 9 from the hole portion 5, The adhesion force with respect to the hole 5 and the adhesion force with respect to the electric wire of the wire insertion portion 3 are increased.

このとき、空間部９は、ゴム栓１の周方向の全域に設けられているので、ゴム栓１の周方向の全域で孔部５と電線とに対する密着力を均一に増加することができる。   At this time, since the space portion 9 is provided in the entire area in the circumferential direction of the rubber plug 1, the adhesion force between the hole 5 and the electric wire can be increased uniformly in the entire area in the circumferential direction of the rubber plug 1.

このようなゴム栓１では、電線挿通部３とリップ部７との間に、電線挿通部３の外周とリップ部７の内周とを離間させ、孔部５に連通された空間部９が設けられているので、孔部５から空間部９に圧力がかかった場合、リップ部７の孔部５に対する密着力と電線挿通部３の電線に対する密着力とが増し、孔部５と電線との間のシール性を向上することができる。   In such a rubber plug 1, the space portion 9 communicated with the hole portion 5 is formed between the wire insertion portion 3 and the lip portion 7 by separating the outer periphery of the wire insertion portion 3 and the inner periphery of the lip portion 7. Therefore, when pressure is applied from the hole 5 to the space 9, the adhesion of the lip 7 to the hole 5 and the adhesion of the electric wire insertion part 3 to the electric wire increase, and the hole 5 and the electric wire The sealing performance between the two can be improved.

また、空間部９は、ゴム栓１の孔部５への挿入時に、リップ部７を撓ませ易くするので、ゴム栓１の孔部５に対する挿入力を低減することができ、ゴム栓１の孔部５への挿入性を向上することができる。   Moreover, since the space part 9 makes it easy to bend the lip | rip part 7 at the time of insertion to the hole part 5 of the rubber plug 1, the insertion force with respect to the hole part 5 of the rubber plug 1 can be reduced, and the rubber plug 1 of FIG. Insertability into the hole 5 can be improved.

従って、このようなゴム栓１では、簡易な構造でシール性と挿入性とを向上することができる。   Therefore, such a rubber plug 1 can improve sealing performance and insertion performance with a simple structure.

また、空間部９は、電線挿通部３とリップ部７との周方向の全域に設けられているので、ゴム栓１の周方向の全域で孔部５と電線とに対する密着力を均一に増加することができると共に、リップ部７を周方向の全域で撓ませ易くすることができ、ゴム栓１の周方向の全域で孔部５に対する挿入力を均一に低減することができる。   Moreover, since the space part 9 is provided in the whole area of the circumferential direction of the electric wire insertion part 3 and the lip | rip part 7, the adhesive force with respect to the hole 5 and an electric wire is increased uniformly in the whole area of the circumferential direction of the rubber plug 1. In addition, the lip portion 7 can be easily bent in the entire region in the circumferential direction, and the insertion force with respect to the hole portion 5 can be reduced uniformly in the entire region in the circumferential direction of the rubber plug 1.

なお、本発明の実施の形態に係るゴム栓では、孔部がハウジングに設けられた構成となっているが、これに限らず、例えば、孔部がパネルなどの部材に設けられている場合など、孔部とこの孔部を挿通する電線との間にゴム栓が密着して配置される構成であれば、本発明の構成を適用することができる。   The rubber plug according to the embodiment of the present invention has a structure in which the hole is provided in the housing. However, the present invention is not limited to this. For example, the hole is provided in a member such as a panel. The configuration of the present invention can be applied as long as the rubber plug is disposed in close contact between the hole and the electric wire inserted through the hole.

また、空間部は、複数のリップ部のうち少なくとも１つのリップ部の内周側に設けられているが、これに限らず、全てのリップ部の内周側に設けてもよい。   Moreover, although the space part is provided in the inner peripheral side of at least 1 lip part among several lip parts, you may provide not only in this but in the inner peripheral side of all the lip parts.

１…ゴム栓
３…電線挿通部
５…孔部
７…リップ部
９…空間部 DESCRIPTION OF SYMBOLS 1 ... Rubber plug 3 ... Electric wire insertion part 5 ... Hole part 7 ... Lip part 9 ... Space part

Claims (2)

電線が挿通され内周面が前記電線の外周面に密着する電線挿通部と、この電線挿通部の外周に設けられ外周面が孔部の内周面に密着するリップ部とを備えたゴム栓であって、
前記電線挿通部と前記リップ部との間には、前記電線挿通部の外周と前記リップ部の内周とを離間させ、前記孔部に連通された空間部が設けられていることを特徴とするゴム栓。 A rubber plug provided with a wire insertion portion in which an electric wire is inserted and an inner peripheral surface thereof is in close contact with the outer peripheral surface of the electric wire, and a lip portion provided on the outer periphery of the electric wire insertion portion and in which the outer peripheral surface is in close contact with the inner peripheral surface of the hole portion Because
Between the electric wire insertion portion and the lip portion, a space portion is provided that is spaced apart from an outer periphery of the electric wire insertion portion and an inner periphery of the lip portion and communicated with the hole portion. Rubber stopper to be used. 請求項１記載のゴム栓であって、
前記空間部は、前記電線挿通部と前記リップ部との周方向の全域に設けられていることを特徴とするゴム栓。 The rubber plug according to claim 1,
The rubber plug is characterized in that the space portion is provided in the entire area in the circumferential direction between the wire insertion portion and the lip portion.
JP2014185958A 2014-09-12 2014-09-12 Rubber plug Abandoned JP2016058336A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021095475A1 (en) * 2019-11-12 2021-05-20 株式会社オートネットワーク技術研究所 Waterproof connector

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5725471U (en) * 1980-07-18 1982-02-09
JPH08250202A (en) * 1995-03-09 1996-09-27 Sumitomo Wiring Syst Ltd Waterproof rubber plug

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5725471U (en) * 1980-07-18 1982-02-09
JPH08250202A (en) * 1995-03-09 1996-09-27 Sumitomo Wiring Syst Ltd Waterproof rubber plug

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021095475A1 (en) * 2019-11-12 2021-05-20 株式会社オートネットワーク技術研究所 Waterproof connector

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