JP6127886B2

JP6127886B2 - Water-stop member and electric wire with water-stop structure

Info

Publication number: JP6127886B2
Application number: JP2013208109A
Authority: JP
Inventors: 香織中島
Original assignee: Sumitomo Wiring Systems Ltd
Current assignee: Sumitomo Wiring Systems Ltd
Priority date: 2013-10-03
Filing date: 2013-10-03
Publication date: 2017-05-17
Anticipated expiration: 2033-10-03
Also published as: JP2015072811A

Description

本発明は、止水部材および止水構造付電線に関する。 The present invention relates to a water stop member and an electric wire with a water stop structure.

特許文献１では、電線端末の止水構造について記載されている。電線の端末には端子が取り付けられており、電線と端子との接続部を封止するように樹脂をモールド成形して、止水部を形成している。 In patent document 1, it describes about the water stop structure of an electric wire terminal. A terminal is attached to the end of the electric wire, and a water stop portion is formed by molding a resin so as to seal a connection portion between the electric wire and the terminal.

特開２００２−３１５１３０号公報JP 2002-315130 A

しかしながら、特許文献１では、樹脂をモールド成形する必要があるので、電線に止水構造を設けるのに要する時間が長い。 However, in Patent Document 1, since it is necessary to mold the resin, it takes a long time to provide the water stop structure on the electric wire.

そこで、本発明は、端子付電線に止水部材を取り付けるのに要する時間を短縮できる止水部材を提供することを目的とする。 Then, an object of this invention is to provide the water stop member which can shorten the time required to attach a water stop member to an electric wire with a terminal.

本発明にかかる止水部材の第１の態様は、先端部において芯線が露出する電線と、露出した前記芯線たる露出芯線に接触しつつ前記電線に設けられる端子部と、を有する端子付電線のうち、前記露出芯線を含む止水対象部分を止水する止水部材であって、第１部材と、前記第１部材に対して閉じた閉状態において、前記第１部材とともに筒状の形状を呈する第２部材と、前記第１部材の内面に設けられる第１弾力部材と、前記第２部材の内面に設けられ、前記閉状態において前記第１弾力部材とともに前記止水対象部分を取り囲んで止水し、前記第１弾力部材とは別体の第２弾力部材とを備える。 1st aspect of the water stop member concerning this invention is an electric wire with a terminal which has the electric wire which a core wire exposes in a front-end | tip part, and the terminal part provided in the said electric wire, contacting the exposed core wire which is the exposed said core wire. Among them, a water stop member that stops the water stop target portion including the exposed core wire, and in a closed state closed with respect to the first member and the first member, a cylindrical shape is formed together with the first member. A second member to be exhibited, a first elastic member provided on the inner surface of the first member, and an inner surface of the second member, and in the closed state, surrounds the water-stop target portion together with the first elastic member. And a second elastic member separate from the first elastic member .

本発明にかかる止水部材の第２の態様は、先端部において芯線が露出する電線と、露出した前記芯線たる露出芯線に接触しつつ前記電線に設けられる端子部と、を有する端子付電線のうち、前記露出芯線を含む止水対象部分を止水する止水部材であって、第１部材と、前記第１部材に対して閉じた閉状態において、前記第１部材とともに筒状の形状を呈する第２部材と、前記第１部材の内面に設けられる第１弾力部材と、前記第２部材の内面に設けられ、前記閉状態において前記第１弾力部材とともに前記止水対象部分を取り囲んで止水する第２弾力部材とを備え、前記第１部材および前記第２部材の各々は、底板部と、前記底板部の両側に突設される一対の側板部とを有して、略Ｕ字状の断面形状を呈し、前記第１部材と前記第２部材とが互いに開いた開状態において、前記第１弾力部材および前記第２弾力部材は、それぞれ前記第１部材および前記第２部材の前記側板部の先端よりも突出する一対の突出部分を有し、前記閉状態において、前記第１弾力部材および前記第２弾力部材は、前記一対の突出部分において互いに押圧し合って密着する。 The 2nd aspect of the water stop member concerning this invention is an electric wire with a terminal which has the electric wire from which a core wire is exposed in the front-end | tip part, and the terminal part provided in the said electric wire while contacting the exposed exposed core wire which is the said core wire. Among them, a water stop member that stops the water stop target portion including the exposed core wire, and in a closed state closed with respect to the first member and the first member, a cylindrical shape is formed together with the first member. A second member to be exhibited, a first elastic member provided on the inner surface of the first member, and an inner surface of the second member, and in the closed state, surrounds the water-stop target portion together with the first elastic member. and a second resilient member for water, wherein each of the first member and the second member, includes a bottom plate portion and a pair of side plate portions which are protruded on both sides of the bottom plate portion, a substantially U- The first member and the second member have a cross-sectional shape In the open state, the first resilient member and the second resilient member each have a pair of projecting portions projecting from the tips of the side plate portions of the first member and the second member, respectively. In the closed state, the first elastic member and the second elastic member are pressed against each other at the pair of protruding portions and are in close contact with each other.

本発明にかかる止水部材の第３の態様は、第１または第２の態様にかかる止水部材であって、前記第１弾力部材および前記第２弾力部材の少なくとも何れか一方は、粘着性を有する。 A third aspect of the water stop member according to the present invention is the water stop member according to the first or second aspect, wherein at least one of the first elastic member and the second elastic member is adhesive. Have

本発明にかかる止水部材の第４の態様は、第３の態様にかかる止水部材であって、前記第１弾力部材および前記第２弾力部材の前記少なくとも何れか一方は、ゲルで形成される。 A fourth aspect of the water stop member according to the present invention is the water stop member according to the third aspect, wherein at least one of the first elastic member and the second elastic member is formed of a gel. The

本発明にかかる止水部材の第５の態様は、先端部において芯線が露出する電線と、露出した前記芯線たる露出芯線に接触しつつ前記電線に設けられる端子部と、を有する端子付電線のうち、前記露出芯線を含む止水対象部分を止水する止水部材であって、第１部材と、前記第１部材に対して閉じた閉状態において、前記第１部材とともに筒状の形状を呈する第２部材と、前記第１部材の内面に設けられる第１弾力部材と、前記第２部材の内面に設けられ、前記閉状態において前記第１弾力部材とともに前記止水対象部分を取り囲んで止水する第２弾力部材とを備え、前記第１弾力部材および前記第２弾力部材には、前記止水対象部分が収納される溝が形成されており、前記第１部材と前記第２部材とが互いに開いた開状態において、前記溝は、前記電線の長手方向において前記露出芯線を挟んで両側に位置する第１断面および第２断面にて、前記止水対象部分の外形に沿う形状を有する。
The 5th aspect of the water stop member concerning this invention is an electric wire with a terminal which has the electric wire which a core wire exposes in a front-end | tip part, and the terminal part provided in the said electric wire while contacting the exposed exposed core wire which is the said core wire. Among them, a water stop member that stops the water stop target portion including the exposed core wire, and in a closed state closed with respect to the first member and the first member, a cylindrical shape is formed together with the first member. A second member to be exhibited, a first elastic member provided on the inner surface of the first member, and an inner surface of the second member, and in the closed state, surrounds the water-stop target portion together with the first elastic member. A second elastic member for watering, and the first elastic member and the second elastic member are formed with a groove for accommodating the water stop target portion, and the first member and the second member In the open state, where the grooves At first section and second section positioned on both sides of the exposed core in the longitudinal direction of the electric wire, it has a shape along the outer shape of the waterproofing target portion.

本発明にかかる止水構造付電線の態様は、先端部において芯線が露出する電線と、露出した前記芯線たる露出芯線に接触しつつ前記電線に設けられる端子部とを有する端子付電線と、前記端子付電線のうち、露出した前記芯線を含む止水対象部分を止水する、第１から第５のいずれか一つの態様にかかる止水部材とを備える。 The embodiment of the electric wire with a water stop structure according to the present invention includes an electric wire with a core wire exposed at a tip portion, and an electric wire with a terminal having a terminal portion provided on the electric wire while being in contact with the exposed core wire as the exposed core wire, A water stop member according to any one of the first to fifth aspects is provided that stops the water stop target portion including the exposed core wire in the electric wire with terminal.

本発明にかかる止水部材の第１の態様および止水構造付電線の態様によれば、例えば硬化性樹脂によって止水対象部分を止水する場合に比して、硬化時間が不要になるので、端子付電線に止水部材を取り付けるのに要する時間を短縮できる。 According to the first aspect of the water-stopping member and the aspect of the electric wire with a water-stopping structure according to the present invention, the curing time becomes unnecessary as compared with the case where the water-stop target portion is stopped with a curable resin, for example. The time required for attaching the water stop member to the electric wire with terminal can be shortened.

本発明にかかる止水部材の第２の態様によれば、第１弾力部材と第２弾力部材との密着性を高めることができる。 According to the 2nd aspect of the water stop member concerning this invention, the adhesiveness of a 1st elastic member and a 2nd elastic member can be improved.

本発明にかかる止水部材の第３及び第４の態様によれば、第１弾力部材および第２弾力部材の少なくとも何れか一方と、止水対象部分との密着性を向上できる。 According to the 3rd and 4th aspect of the water stop member concerning this invention, the adhesiveness of at least any one of a 1st elastic member and a 2nd elastic member and a water stop object part can be improved.

本発明にかかる止水部材の第５の態様によれば、第１断面および第２断面において溝が止水部材の外形に沿っているので、第１断面および第２断面において、第１弾力部材および第２弾力部材が止水対象部分に密着しやすい。よって止水に寄与する。 According to the 5th aspect of the water stop member concerning this invention, since a groove | channel has followed the external shape of the water stop member in the 1st cross section and the 2nd cross section, in the 1st cross section and the 2nd cross section, the 1st elastic member And the 2nd elastic member tends to stick to a water stop object part. Therefore, it contributes to water stoppage.

端子付電線の構成の一例を模式的に示す平面図である。It is a top view which shows typically an example of a structure of an electric wire with a terminal. 端子付電線の構成の一例を模式的に示す側面図である。It is a side view which shows typically an example of a structure of an electric wire with a terminal. 止水部材の構成の一例を模式的に示す斜視図である。It is a perspective view which shows typically an example of a structure of a water stop member. 止水構造付電線の構成の一例を模式的に示す側面図である。It is a side view which shows typically an example of a structure of an electric wire with a water stop structure. 止水構造付電線の構成の一例を模式的に示す段面図である。It is a step view which shows typically an example of composition of an electric wire with a water stop structure. 止水構造付電線の構成の一例を模式的に示す段面図である。It is a step view which shows typically an example of composition of an electric wire with a water stop structure. 止水構造付電線の構成の一例を模式的に示す段面図である。It is a step view which shows typically an example of composition of an electric wire with a water stop structure. 止水部材の構成の一例を模式的に示す斜視図である。It is a perspective view which shows typically an example of a structure of a water stop member.

＜端子付電線＞
図１は、端子付電線の構成の一例を模式的に示す平面図である。図２は、端子付電線の構成の一例を模式的に示す側面図である。端子付電線６は、電線７と端子部８とを有している。電線７は芯線７２と絶縁被覆７４とを備えている。芯線７２は、通常、細い導体からなる素線の複数が撚り合わされた撚り線である。ただし、芯線７２が一つの素線によって構成される単線であっても構わない。この素線は、例えば銅またはアルミニウムを主成分とする金属の線材である。 <Wire with terminal>
Drawing 1 is a top view showing typically an example of composition of an electric wire with a terminal. FIG. 2 is a side view schematically showing an example of the configuration of the terminal-attached electric wire. The electric wire with terminal 6 has an electric wire 7 and a terminal portion 8. The electric wire 7 includes a core wire 72 and an insulating coating 74. The core wire 72 is usually a stranded wire in which a plurality of strands made of thin conductors are twisted together. However, the core wire 72 may be a single wire constituted by one strand. This strand is, for example, a metal wire whose main component is copper or aluminum.

絶縁被覆７４は絶縁性を有しており、芯線７２を被覆する。ただし、電線７の先端部においては、一定の長さ分の芯線７２が絶縁被覆７４によって覆われずに露出している。例えば電線７の先端部において、公知の加工により絶縁被覆７４を剥ぐことにより、芯線７２が露出する。 The insulating coating 74 has an insulating property and covers the core wire 72. However, the core wire 72 of a certain length is exposed at the tip of the electric wire 7 without being covered with the insulating coating 74. For example, the core wire 72 is exposed by peeling off the insulating coating 74 by a known process at the tip of the electric wire 7.

以下では、電線７の先端部において、絶縁被覆７４から伸びた芯線７２を露出芯線７２２とも呼ぶ。また、絶縁被覆７４の端部の一定の範囲（数ミリメートルから数十ミリメートル程度の長さの範囲）の部分を被覆端部７４２とも呼ぶ。 Hereinafter, the core wire 72 extending from the insulating coating 74 at the distal end portion of the electric wire 7 is also referred to as an exposed core wire 722. Further, a portion in a certain range (a range of a length of several millimeters to several tens of millimeters) at the end portion of the insulating coating 74 is also referred to as a covering end portion 742.

端子部８は露出芯線７２２に接触しつつ電線７の先端部に設けられている。この端子部８は、外部の相手側端子（不図示）と電気的に接続するため端子であり、例えば圧着端子である。端子部８は、例えば、銅もしくは黄銅などの銅合金の部材、又はそれらの部材に錫（Ｓｎ）メッキもしくは錫に銀（Ａｇ）、銅（Ｃｕ）、ビスマス（Ｂｉ）などが添加された錫合金のメッキが施された導体の部材である。 The terminal portion 8 is provided at the distal end portion of the electric wire 7 while being in contact with the exposed core wire 722. The terminal portion 8 is a terminal for electrically connecting to an external counterpart terminal (not shown), and is, for example, a crimp terminal. The terminal portion 8 is, for example, a copper alloy member such as copper or brass, or tin (Sn) plated on these members or tin added with silver (Ag), copper (Cu), bismuth (Bi), etc. It is a conductor member plated with an alloy.

例えば端子部８は、被覆固定部８１と第一連結部８２と芯線固定部８３と第二連結部８４と接点部８５とを有している。被覆固定部８１と第一連結部８２と芯線固定部８３と第二連結部８４と接点部８５とは、電線７の長手方向Ｄ１において、この順で配置されている。 For example, the terminal portion 8 includes a covering fixing portion 81, a first connecting portion 82, a core wire fixing portion 83, a second connecting portion 84, and a contact portion 85. The covering fixing portion 81, the first connecting portion 82, the core wire fixing portion 83, the second connecting portion 84, and the contact portion 85 are arranged in this order in the longitudinal direction D1 of the electric wire 7.

被覆固定部８１は、被覆端部７４２に固定（例えば圧着により固定）される部分である。被覆固定部８１は、例えば曲がって形成される板状の部材であり、例えば底板部８１３と、一対のカシメ部８１１，８１２とを有している。この底板部８１３は、図１において被覆端部７４２よりも紙面奥側に位置する板状の部材である。この一対のカシメ部８１１，８１２は、底板部８１３の両側から被覆端部７４２を囲うように延在しており、一対のカシメ部８１１，８１２と底板部８１３とが被覆端部７４２に圧着することで、被覆固定部８１が被覆端部７４２に固定される。 The covering fixing portion 81 is a portion fixed to the covering end portion 742 (for example, fixed by pressure bonding). The covering fixing portion 81 is a plate-like member formed by bending, for example, and has, for example, a bottom plate portion 813 and a pair of caulking portions 811 and 812. The bottom plate portion 813 is a plate-like member located on the back side of the drawing sheet with respect to the covering end portion 742 in FIG. The pair of caulking portions 811 and 812 extends from both sides of the bottom plate portion 813 so as to surround the covering end portion 742, and the pair of caulking portions 811 and 812 and the bottom plate portion 813 are crimped to the covering end portion 742. Thus, the covering fixing portion 81 is fixed to the covering end portion 742.

より詳細には、被覆固定部８１が被覆端部７４２に固定される前の状態では、一対のカシメ部８１１，８１２は、例えば互いに空間を介して対面している。そして、この空間に被覆端部７４２を挿入した状態で、一対のカシメ部８１１，８１２を、被覆端部７４２の周囲に沿って折り曲げて締める。これにより、被覆固定部８１が被覆端部７４２に圧着されることとなる。 More specifically, in a state before the covering fixing portion 81 is fixed to the covering end portion 742, the pair of caulking portions 811 and 812 face each other through a space, for example. Then, in a state where the covering end portion 742 is inserted into this space, the pair of caulking portions 811 and 812 are bent along the periphery of the covering end portion 742 and tightened. As a result, the covering fixing portion 81 is pressure-bonded to the covering end portion 742.

ここでは、被覆固定部８１は、例えば２つのカシメ部８１１，８１２が重ならない突き合わせタイプである。しかしながら、被覆固定部８１は、２つのカシメ部８１１，８１２が重ねられて被覆端部７４２にかしめられる重ね合わせタイプであってもよく、或いは、筒状に形成されたクローズドバレルタイプであってもよい。 Here, the covering fixing part 81 is, for example, a butting type in which the two crimping parts 811 and 812 do not overlap. However, the covering fixing portion 81 may be an overlapping type in which two caulking portions 811 and 812 are overlapped and caulked to the covering end portion 742, or may be a closed barrel type formed in a cylindrical shape. Good.

なお、底板部８１３及びカシメ部８１１，８１２は、いずれも概ね平板状である場合の他、湾曲した周面を形成する被覆端部７４２の外形に沿うように、湾曲した板状である場合もある。 The bottom plate portion 813 and the caulking portions 811 and 812 may be curved plate-shaped so as to follow the outer shape of the covering end portion 742 that forms the curved peripheral surface, in addition to the case where both are substantially flat plate-shaped. is there.

また被覆固定部８１は圧着に限らず、任意の固定方法によって固定されればよく、また被覆端部７４２に対して外周側から固定できる限りにおいて、その形状も任意である。 The covering fixing portion 81 is not limited to crimping, and may be fixed by any fixing method. The shape of the covering fixing portion 81 is arbitrary as long as it can be fixed to the covering end 742 from the outer peripheral side.

芯線固定部８３は、露出芯線７２２に固定（例えば圧着により固定）される部分である。芯線固定部８３は、例えば被覆固定部８１と同様にして、露出芯線７２２に固定される。ここでは、芯線固定部８３は被覆固定部８１の同様の形状を有している。よって、繰り返しの説明を避けるべく、芯線固定部８３の形状についての詳細な説明を省略する。 The core wire fixing portion 83 is a portion that is fixed to the exposed core wire 722 (for example, fixed by crimping). The core wire fixing portion 83 is fixed to the exposed core wire 722 in the same manner as the covering fixing portion 81, for example. Here, the core wire fixing portion 83 has the same shape as the covering fixing portion 81. Therefore, in order to avoid repeated description, detailed description of the shape of the core wire fixing portion 83 is omitted.

第一連結部８２は被覆固定部８１と芯線固定部８３とを連結する部分である。例えば第一連結部８２は板状の部材である。ここでは、被覆固定部８１の底板部８１３と芯線固定部８３の底板部とがほぼ同一平面上に配置されており、第一連結部８２も当該平面に配置される。この第一連結部８２は、被覆固定部８１の底板部８１３と芯線固定部８３の底板部とを連結する。 The first connecting portion 82 is a portion that connects the covering fixing portion 81 and the core wire fixing portion 83. For example, the 1st connection part 82 is a plate-shaped member. Here, the bottom plate portion 813 of the covering fixing portion 81 and the bottom plate portion of the core wire fixing portion 83 are arranged on substantially the same plane, and the first connecting portion 82 is also arranged on the plane. The first connecting portion 82 connects the bottom plate portion 813 of the covering fixing portion 81 and the bottom plate portion of the core wire fixing portion 83.

接点部８５は、端子部８の接続相手となる不図示の相手側端子と接触して接続する部分である。図１の例示では、接点部８５はリング状かつ板状の形状を有している。ここでは接点部８５は、被覆固定部８１の底板部８１３、第一連結部８２および芯線固定部８３の底板部と略平行な板状の形状を有している。 The contact portion 85 is a portion that contacts and connects to a not-shown counterpart terminal that is a connection counterpart of the terminal portion 8. In the illustration of FIG. 1, the contact portion 85 has a ring shape and a plate shape. Here, the contact portion 85 has a plate-like shape substantially parallel to the bottom plate portion 813 of the covering fixing portion 81, the first connecting portion 82 and the bottom plate portion of the core wire fixing portion 83.

第二連結部８４は芯線固定部８３と接点部８５とを連結する部分である。例えば第二連結部８４は板状の部材である。図２の例示では、接点部８５は、芯線固定部８３の底板部とは異なる平面に、配置されている。接点部８５は、図２において芯線固定部８３よりも紙面右側かつ紙面下側に位置している。よって第二連結部８４は、芯線固定部８３から接点部８５へと向かうにしたがって紙面右下に延在している。 The second connecting portion 84 is a portion that connects the core wire fixing portion 83 and the contact portion 85. For example, the second connecting portion 84 is a plate-like member. In the illustration of FIG. 2, the contact portion 85 is disposed on a different plane from the bottom plate portion of the core wire fixing portion 83. The contact portion 85 is located on the right side and the lower side of the drawing with respect to the core wire fixing portion 83 in FIG. Therefore, the second connecting portion 84 extends to the lower right of the page as it goes from the core wire fixing portion 83 to the contact portion 85.

＜止水部材＞
図３は、端子付電線に取り付けられる止水部材の構成の一例を模式的に示す斜視図である。止水部材１は、後に図４を参照して説明するように、端子付電線６の長手方向Ｄ１における一部を取り囲んで、当該一部を止水するための部材である。 <Water stop member>
FIG. 3 is a perspective view schematically showing an example of the configuration of the water stop member attached to the terminal-attached electric wire. As will be described later with reference to FIG. 4, the water stop member 1 is a member that surrounds a part of the terminal-attached electric wire 6 in the longitudinal direction D <b> 1 and stops the part.

止水部材１は、上側部材２１と下側部材２２と上側弾力部材４１と下側弾力部材４２とを有している。なお、ここでいう「上」「下」は、部材２１，２２を区別するため、或いは弾力部材４１，４２を区別するための単なる呼称であり、部材２１，２２或いは弾力部材４１，４２の位置を限定するためのものではない。 The water stop member 1 includes an upper member 21, a lower member 22, an upper elastic member 41, and a lower elastic member 42. Here, “upper” and “lower” are simply names for distinguishing the members 21 and 22 or for distinguishing the elastic members 41 and 42, and the positions of the members 21 and 22 or the elastic members 41 and 42. It is not intended to limit.

上側部材２１および下側部材２２は、例えば樹脂（例えばポリエチレンテレフタラート樹脂）などで形成されている。上側部材２１は、下側部材２２に対して開閉可能である。図３では、上側部材２１が下側部材２２に対して開いた状態（開状態）における止水部材１が示されている。一方で、上側部材２１が下側部材２２に対して閉じる状態（閉状態）においては、上側部材２１および下側部材２２は、周方向における両端において互いに当接することで、筒状の形状を呈する。そして、後に説明するように、この筒状の内部空間に端子付電線６の一部が収納されることとなる。 The upper member 21 and the lower member 22 are made of, for example, a resin (for example, polyethylene terephthalate resin). The upper member 21 can be opened and closed with respect to the lower member 22. In FIG. 3, the water blocking member 1 in a state where the upper member 21 is open with respect to the lower member 22 (open state) is shown. On the other hand, in a state where the upper member 21 is closed with respect to the lower member 22 (closed state), the upper member 21 and the lower member 22 are in contact with each other at both ends in the circumferential direction, thereby exhibiting a cylindrical shape. . As described later, a part of the terminal-attached electric wire 6 is accommodated in this cylindrical internal space.

図３の例示では、上側部材２１は略Ｕ字状の断面を有しており、底板部２１１と、底板部２１１の両側部に突設される一対の側板部２１２，２１３とを備えている。一対の側板部２１２，２１３は、互いに同じ方向に突出しており、互いに間隔を空けて対面する。下側部材２２も略Ｕ字状の断面を有しており、底板部２２１と、底板部２２１の両側部に突設される一対の側板部２２２，２２３とを備えている。一対の側板部２２２，２２３も、互いに同じ方向に突出しており、互いに間隔を空けて対面する。 In the illustration of FIG. 3, the upper member 21 has a substantially U-shaped cross section, and includes a bottom plate portion 211 and a pair of side plate portions 212 and 213 that protrude from both sides of the bottom plate portion 211. . The pair of side plate portions 212 and 213 protrude in the same direction, and face each other with a space therebetween. The lower member 22 also has a substantially U-shaped cross section, and includes a bottom plate portion 221 and a pair of side plate portions 222 and 223 that project from both side portions of the bottom plate portion 221. The pair of side plate portions 222 and 223 also protrude in the same direction, and face each other with a space therebetween.

これら側板部２１２，２２２の先端同士、および、側板部２１３，２２３の先端同士が互いに向かい合って対面するように、上側部材２１と下側部材２２とを互いに閉じることで、上側部材２１と下側部材２２とが互いに協働して筒状の形状を呈することとなる。 The upper member 21 and the lower member 22 are closed by closing the upper member 21 and the lower member 22 so that the distal ends of the side plate portions 212 and 222 and the distal ends of the side plate portions 213 and 223 face each other. The member 22 cooperates with each other to exhibit a cylindrical shape.

また上側部材２１と下側部材２２とは、閉状態において、固定部材によって互いに固定される。図３の例示では、当該固定部材は、ヒンジ部３１と、係止部３２と、係止突部３３とを備えている。上側部材２１と下側部材２２と固定部材（ヒンジ部３１、係止部３２および係止突部３３）とは、例えば一体で成形されている。 The upper member 21 and the lower member 22 are fixed to each other by a fixing member in the closed state. In the illustration of FIG. 3, the fixing member includes a hinge portion 31, a locking portion 32, and a locking projection 33. The upper member 21, the lower member 22, and the fixing member (the hinge part 31, the locking part 32, and the locking protrusion 33) are integrally formed, for example.

ヒンジ部３１は、側板部２１３，２２３の先端同士を互いに回転可能に連結している。このヒンジ部３１を中心として上側部材２１および下側部材２２を相対的に回転させることで、側板部２１２，２２２の先端同士を近づけたり、遠ざけたりすることができる。 The hinge part 31 is connecting the front-end | tips of the side-plate parts 213 and 223 so that rotation is mutually possible. By relatively rotating the upper member 21 and the lower member 22 around the hinge portion 31, the tips of the side plate portions 212 and 222 can be brought closer to or away from each other.

係止突部３３は、側板部２２２の外周面から外側（側板部２２３とは反対側）に突出している。また係止突部３３は、側板部２２２の先端側から基端側（底板部２２１側）に向かうにしたがって、より外側に張り出すように傾斜している。 The locking projection 33 projects outward from the outer peripheral surface of the side plate 222 (on the side opposite to the side plate 223). Further, the locking projection 33 is inclined so as to protrude further outward from the distal end side of the side plate portion 222 toward the base end side (bottom plate portion 221 side).

係止部３２は側板部２１２の外周面に設けられている。係止部３２は、係止突部３３と係止するための部材であり、例えば係止突部３３が挿入される係止孔が形成された平板部材である。 The locking portion 32 is provided on the outer peripheral surface of the side plate portion 212. The locking portion 32 is a member for locking with the locking projection 33, and is, for example, a flat plate member in which a locking hole into which the locking projection 33 is inserted is formed.

このような止水部材１において、上側部材２１および下側部材２２を相対的に回転させて、側板部２１２，２２２の先端同士を近づけると、係止部３２が係止突部３３の傾斜面に当接する。そして、さらに側板部２１２，２２２の先端同士を近づけることにより、係止部３２が、係止突部３３の傾斜面に応じて外側に弾性変形する。そして、係止部３２の先端部分が係止突部３３を超えると、弾性復帰して係止突部３３に係止される（係止突部３３が係止孔に挿入される）。この係止により、上側部材２１と下側部材２２とが互いに固定されることとなる。 In such a water-stopping member 1, when the upper member 21 and the lower member 22 are relatively rotated to bring the front ends of the side plate portions 212 and 222 closer to each other, the locking portion 32 is an inclined surface of the locking projection 33. Abut. Further, when the tips of the side plate portions 212 and 222 are brought closer to each other, the locking portion 32 is elastically deformed outward according to the inclined surface of the locking projection 33. And when the front-end | tip part of the latching | locking part 32 exceeds the latching protrusion 33, it will elastically return and it will latch to the latching protrusion 33 (the latching protrusion 33 will be inserted in a latching hole). By this locking, the upper member 21 and the lower member 22 are fixed to each other.

上側弾力部材４１および下側弾力部材４２は、いわゆるエラストマー、ゴムまたはゲル等によって形成されている。上側弾力部材４１および下側弾力部材４２は、それぞれ上側部材２１および下側部材２２の内面に設けられている。よって閉状態では、上側弾力部材４１および下側弾力部材４２は互いに向かい合って対面する。以下では、下側弾力部材４２と対面する上側弾力部材４１の表面を合わせ面４１２と呼び、上側弾力部材４１と対面する下側弾力部材４２の表面を合わせ面４２２と呼ぶ。 The upper elastic member 41 and the lower elastic member 42 are formed of so-called elastomer, rubber, gel, or the like. The upper elastic member 41 and the lower elastic member 42 are provided on the inner surfaces of the upper member 21 and the lower member 22, respectively. Therefore, in the closed state, the upper elastic member 41 and the lower elastic member 42 face each other and face each other. Hereinafter, the surface of the upper elastic member 41 facing the lower elastic member 42 is called a mating surface 412, and the surface of the lower elastic member 42 facing the upper elastic member 41 is called a mating surface 422.

合わせ面４１２，４２２は閉状態において互いに当接し、この状態において、上側弾力部材４１および下側弾力部材４２が筒状の形状を呈する。以下に詳述する。 The mating surfaces 412 and 422 are in contact with each other in the closed state, and in this state, the upper elastic member 41 and the lower elastic member 42 have a cylindrical shape. This will be described in detail below.

上側弾力部材４１の合わせ面４１２には、溝４１４が形成されており、また突起部４１６が形成されている。この突起部４１６も上側弾力部材４１の一部分である。溝４１４は上側弾力部材４１の一方の端から長手方向Ｄ１に沿って延在する。また突起部４１６は他方の端において突設されている。突起部４１６は、底板部２１１に垂直な方向に突出している。 A groove 414 is formed in the mating surface 412 of the upper elastic member 41, and a protrusion 416 is formed. This protrusion 416 is also a part of the upper elastic member 41. The groove 414 extends from one end of the upper elastic member 41 along the longitudinal direction D1. Further, the protrusion 416 protrudes at the other end. The protruding portion 416 protrudes in a direction perpendicular to the bottom plate portion 211.

下側弾力部材４２の合わせ面４２２には、長手方向Ｄ１に沿って端から端まで延在する溝４２４が形成されている。 A groove 424 extending from end to end along the longitudinal direction D1 is formed in the mating surface 422 of the lower elastic member 42.

溝４１４，４２４は、閉状態において互いに向かい合う位置に設けられており、突起部４１６は、閉状態において溝４２４の一部に挿入される位置に設けられる。ただし、突起部４１６の先端と下側弾力部材４２との間には空隙が形成される。よって、溝４１４，４２４および突起部４１６によって形成される内部空間は、止水部材１を貫通することになる。この内部空間には、後述のように、端子付電線６の一部が配置される。 The grooves 414 and 424 are provided at positions facing each other in the closed state, and the protrusion 416 is provided at a position inserted into a part of the groove 424 in the closed state. However, a gap is formed between the tip of the protrusion 416 and the lower elastic member 42. Therefore, the internal space formed by the grooves 414 and 424 and the protrusions 416 penetrates the water blocking member 1. As will be described later, a part of the terminal-attached electric wire 6 is disposed in the internal space.

＜止水構造付電線＞
図４は、止水部材が取り付けられた端子付電線（止水構造付電線）の構成の一例を模式的に示す平面図である。図５〜図７は、それぞれ図４のＡ−Ａ断面、Ｂ−Ｂ断面およびＣ−Ｃ断面を模式的に示す断面図である。 <Wire with water stop structure>
FIG. 4 is a plan view schematically showing an example of a configuration of a terminal-attached electric wire (electric wire with a water stop structure) to which a water stop member is attached. 5-7 is sectional drawing which shows typically the AA cross section of FIG. 4, a BB cross section, and CC cross section, respectively.

止水部材１は、閉状態において、端子付電線６の長手方向Ｄ１における一部６０を取り囲んで、当該一部６０に固定される。この一部６０は、止水対象となる部分であり、少なくとも露出芯線７２２を含む部分（以下、止水対象部分６０と呼ぶ）である。ここでは、止水対象部分６０の一方の端を、被覆端部７４２のうち、端子部８が設けられていない所定の部分（端子部８に近い部分）とし、他方の端を、第二連結部８４の途中の部分としている。 In the closed state, the water stop member 1 surrounds the part 60 in the longitudinal direction D1 of the terminal-attached electric wire 6 and is fixed to the part 60. This part 60 is a part to be a water stop target, and is a part including at least the exposed core wire 722 (hereinafter referred to as a water stop target part 60). Here, one end of the water-stop target portion 60 is a predetermined portion of the covering end portion 742 where the terminal portion 8 is not provided (portion close to the terminal portion 8), and the other end is the second connection. It is a part in the middle of the part 84.

この止水対象部分６０は、上述した内部空間に収納されて、止水部材１（より詳細には上側弾力部材４１及び下側弾力部材４２）によって取り囲まれることとなる。また図４の例示では、止水対象部分６０は、底板部８１３、第一連結部８２、底板部８３３、第二連結部８４が下側部材２２側に位置する姿勢で、止水部材１に取り囲まれている。 This water stop target portion 60 is housed in the above-described internal space and is surrounded by the water stop member 1 (more specifically, the upper elastic member 41 and the lower elastic member 42). In the illustration of FIG. 4, the water stop target portion 60 is disposed on the water stop member 1 in such a posture that the bottom plate portion 813, the first connection portion 82, the bottom plate portion 833, and the second connection portion 84 are located on the lower member 22 side. Surrounded.

図４のＡ−Ａ断面（図５を参照）において、上側弾力部材４１および下側弾力部材４２の一組は、被覆端部７４２の外周面に対して全周に渡って密着している。ここで、図３を参照して、開状態における溝４１４，４２４の形状（つまり止水部材１が端子付電線６に取り付けられていない状態での形状）について説明する。図３に示すように、溝４１４，４２４のうち、被覆端部７４２を取り囲む部分（紙面手前側の部分）は、被覆端部７４２の外周面（円柱形状）に沿った形状を有している。すなわち、溝４１４，４２４は当該部分において断面半円状の形状を有しており、閉状態において被覆端部７４２と密着する。 4, a set of the upper elastic member 41 and the lower elastic member 42 is in close contact with the outer peripheral surface of the covering end 742 over the entire circumference. Here, with reference to FIG. 3, the shape of the grooves 414 and 424 in the open state (that is, the shape in a state where the water stop member 1 is not attached to the terminal-attached electric wire 6) will be described. As shown in FIG. 3, in the grooves 414, 424, the portion surrounding the covered end portion 742 (the portion on the front side of the paper surface) has a shape along the outer peripheral surface (cylindrical shape) of the covered end portion 742. . That is, the grooves 414 and 424 have a semicircular cross-sectional shape in the portion, and are in close contact with the covering end 742 in the closed state.

なお、溝４１４，４２４の当該部分によって形成される内部空間の径は、被覆端部７４２の外径と等しくてもよいものの、これよりもわずかに小さいことが望ましい。第１弾力部材４１および第２弾力部材４２は、その弾力性によって変形することができるので、被覆端部７４２によって当該空間の径が広げられつつ、被覆端部７４２に密着することができる。これにより、密着性を向上することができる。 In addition, although the diameter of the internal space formed by the said part of the groove | channels 414,424 may be equal to the outer diameter of the covering edge part 742, it is desirable that it is slightly smaller than this. Since the first elastic member 41 and the second elastic member 42 can be deformed by their elasticity, the diameter of the space can be increased by the covering end 742 and can be in close contact with the covering end 742. Thereby, adhesiveness can be improved.

また、上側弾力部材４１と下側弾力部材４２とは、合わせ面４１２，４２２（溝４１４，４２４に対して両側の面）において、互いに密着している。このとき、その密着性を向上すべく、上側弾力部材４１と下側弾力部材４２とが互いに押圧し合っていることが望ましい。これは、以下のように、上側弾力部材４１の厚みと下側弾力部材４２の厚みとを設定することによって実現できる。 The upper elastic member 41 and the lower elastic member 42 are in close contact with each other on the mating surfaces 412 and 422 (surfaces on both sides with respect to the grooves 414 and 424). At this time, in order to improve the adhesion, it is desirable that the upper elastic member 41 and the lower elastic member 42 are pressed against each other. This can be realized by setting the thickness of the upper elastic member 41 and the thickness of the lower elastic member 42 as follows.

即ち、図８に例示するように、上側弾力部材４１は、上側部材２１の先端（より詳細には側板部２１２，２１３の先端）よりもわずかに突出する一対の突出部分を有し、同様に、下側弾力部材４２は下側部材２２の先端（より詳細には側板部２２２，２２３の先端）よりもわずかに突出する一対の突出部分を有している。言い換えれば、上側弾力部材４１の厚み（底板部２１１に垂直な方向の厚み）Ｗ１は、側板部２１２，２１３の高さ（底板部２１１の内周面を基準とした高さ）よりもわずかに厚く、下側弾力部材４２の厚み（底板部２２１に垂直な方向の厚み）Ｗ２は側板部２２２，２２３の高さ（底板部２２１の内周面を基準とした高さ）よりもわずかに厚い。なお図８では、上側弾力部材４１の突出量および下側弾力部材４２の突出量を誇張して示している。 That is, as illustrated in FIG. 8, the upper elastic member 41 has a pair of protruding portions that slightly protrude from the tip of the upper member 21 (more specifically, the tips of the side plate portions 212 and 213). The lower elastic member 42 has a pair of protruding portions that slightly protrude from the distal end of the lower member 22 (more specifically, the distal ends of the side plate portions 222 and 223). In other words, the thickness of the upper elastic member 41 (thickness in the direction perpendicular to the bottom plate portion 211) W1 is slightly smaller than the height of the side plate portions 212 and 213 (the height based on the inner peripheral surface of the bottom plate portion 211). Thick, the thickness of the lower elastic member 42 (thickness in the direction perpendicular to the bottom plate portion 221) W2 is slightly thicker than the height of the side plate portions 222, 223 (the height based on the inner peripheral surface of the bottom plate portion 221). . In FIG. 8, the protruding amount of the upper elastic member 41 and the protruding amount of the lower elastic member 42 are exaggerated.

また固定部材によって上側部材２１および下側部材２２が互いに固定された閉状態において、底板部２１１，２２１の内周面の間の距離Ｈ１（図５〜７参照）は、上記厚みＷ１，Ｗ２の和よりもわずかに短い。これにより、上側部材２１および下側部材２２は、上側弾力部材４１および下側弾力部材４２を押圧することができる。したがって、合わせ面４１２，４２２（突出部分）において、上側弾力部材４１および下側弾力部材４２が互いに押圧し合って密着する。これにより、合わせ面４１２，４２２における密着性を向上することができる。 In the closed state in which the upper member 21 and the lower member 22 are fixed to each other by the fixing member, the distance H1 (see FIGS. 5 to 7) between the inner peripheral surfaces of the bottom plate portions 211 and 221 is equal to the thicknesses W1 and W2. Slightly shorter than the sum. Thereby, the upper member 21 and the lower member 22 can press the upper elastic member 41 and the lower elastic member 42. Therefore, at the mating surfaces 412 and 422 (projecting portions), the upper elastic member 41 and the lower elastic member 42 are pressed against each other and are in close contact with each other. Thereby, the adhesiveness in the mating surfaces 412 and 422 can be improved.

また、上側弾力部材４１および下側弾力部材４２は、長手方向Ｄ１における任意の位置において互いに密着する。よって繰り返しの説明を避けるべく、以下で参照する他の断面においては、上側弾力部材４１と下側弾力部材４２との密着についての説明を避ける。 The upper elastic member 41 and the lower elastic member 42 are in close contact with each other at an arbitrary position in the longitudinal direction D1. Therefore, in order to avoid repeated description, in the other cross-sections referred to below, description on the close contact between the upper elastic member 41 and the lower elastic member 42 is avoided.

芯線固定部８３を通るＢ−Ｂ断面（図６）において、上側弾力部材４１および下側弾力部材４２の一組は、芯線固定部８３の外周面に対して全周に渡って密着している。なお図３においては、溝４１４，４２４は、芯線固定部８３と対応する部分において、簡易的に断面矩形状を呈するものとして示している。上側弾力部材４１および下側弾力部材４２は弾力性を有しているので、芯線固定部８３に押し付けられることで、芯線固定部８３に密着することができる。 In the BB cross section (FIG. 6) passing through the core wire fixing portion 83, one set of the upper elastic member 41 and the lower elastic member 42 is in close contact with the outer peripheral surface of the core wire fixing portion 83 over the entire circumference. . In FIG. 3, the grooves 414 and 424 are simply shown as having a rectangular cross section in a portion corresponding to the core wire fixing portion 83. Since the upper elastic member 41 and the lower elastic member 42 have elasticity, they can be brought into close contact with the core wire fixing portion 83 by being pressed against the core wire fixing portion 83.

ただし、図３の例示とは異なって、溝４１４，４２４は、芯線固定部８３と対応する部分において、芯線固定部８３の外形に沿った形状を有していてもよい。この場合、溝４１４，４２４が向かい合う状態にて形成される内部空間の輪郭は、芯線固定部８３の外形よりもわずかに小さければよい。 However, unlike the illustration of FIG. 3, the grooves 414 and 424 may have a shape along the outer shape of the core wire fixing portion 83 in a portion corresponding to the core wire fixing portion 83. In this case, the outline of the internal space formed in a state where the grooves 414 and 424 face each other only needs to be slightly smaller than the outline of the core wire fixing portion 83.

連結部８４を通るＣ−Ｃ断面（図７）において、上側弾力部材４１および下側弾力部材４２の一組は、連結部８４に対して全周に渡って密着している。図３において、突起部４１６は、直方体形状を有しており、その先端面は平面形状を呈している。この先端面が第二連結部８４に密着する。また溝４２４は、第二連結部８４に対応する部分において、第二連結部８４の外形に応じて、断面矩形状を有している。溝４２４の幅は第二連結部８４の幅と等しくてもよいものの、これよりもわずかに狭いことが望ましい。同様に、突起部４１６の先端面と溝４２４の底面との間の距離は、第二連結部８４の厚みと等しくてもよいものの、これよりもわずかに短いことが望ましい。これにより、上側弾力部材４１および下側弾力部材４２の各々と第二連結部８４との密着性を向上することができる。 In the CC cross section passing through the connecting portion 84 (FIG. 7), a pair of the upper elastic member 41 and the lower elastic member 42 is in close contact with the connecting portion 84 over the entire circumference. In FIG. 3, the protrusion 416 has a rectangular parallelepiped shape, and the tip surface thereof has a planar shape. This leading end surface is in close contact with the second connecting portion 84. Further, the groove 424 has a rectangular cross section in a portion corresponding to the second connecting portion 84 in accordance with the outer shape of the second connecting portion 84. Although the width of the groove 424 may be equal to the width of the second connecting portion 84, it is desirable that the width is slightly narrower than this. Similarly, the distance between the front end surface of the protrusion 416 and the bottom surface of the groove 424 may be equal to the thickness of the second connecting portion 84, but is preferably slightly shorter than this. Thereby, the adhesiveness between each of the upper elastic member 41 and the lower elastic member 42 and the second connecting portion 84 can be improved.

また上側弾力部材４１は、合わせ面４１２，４２２のみならず、突起部４１６の側面においても、下側弾力部材４２と密着する。また突起部４１６の幅は溝４２４の幅と等しくても良いものの、これよりもわずかに広いことが望ましい。これにより、突起部４１６の側面における上側弾力部材４１と下側弾力部材４２との密着性を高めることができる。 The upper elastic member 41 is in close contact with the lower elastic member 42 not only on the mating surfaces 412 and 422 but also on the side surface of the protrusion 416. Further, although the width of the protrusion 416 may be equal to the width of the groove 424, it is desirable that the width is slightly larger than this. Thereby, the adhesiveness of the upper side elastic member 41 and the lower side elastic member 42 in the side surface of the projection part 416 can be improved.

以上のように、上側弾力部材４１および下側弾力部材４２は、止水対象部分６０を密着して取り囲んでいる。しかも、上側弾力部材４１および下側弾力部材４２の表面は、その弾力性により変形しやすいので、止水対象部分６０に対して密着しやすいのである。これにより、止水対象部分６０を止水することができる。 As described above, the upper elastic member 41 and the lower elastic member 42 tightly surround the water stop target portion 60. In addition, the surfaces of the upper elastic member 41 and the lower elastic member 42 are easily deformed due to their elasticity, and are thus in close contact with the water-stop target portion 60. Thereby, the water stop target part 60 can be stopped.

また特許文献１とは異なって、止水用の硬化性樹脂を硬化させる必要がないので、作業に要する時間を、その硬化時間の分、短縮することができる。したがって生産性を向上することができる。 Unlike Patent Document 1, it is not necessary to cure the water-stopping curable resin, so that the time required for the work can be shortened by the curing time. Therefore, productivity can be improved.

＜上側弾力部材４１および下側弾力部材４２の材質＞
上側弾力部材４１および下側弾力部材４２の少なくとも一方の材質として、粘着性を有する材質（例えばいわゆる耐震ゲルで採用される材質、例えばウレタンエラストマーなど）を採用しても良い。これによれば、上側弾力部材４１および下側弾力部材４２が粘着性を以って互いに接することになるので、密着しやすい。また同様に、上側弾力部材４１および下側弾力部材４２の少なくとも一方が止水対象部分６０と密着しやすい。 <Material of Upper Elastic Member 41 and Lower Elastic Member 42>
As a material of at least one of the upper elastic member 41 and the lower elastic member 42, a material having adhesiveness (for example, a material employed in a so-called earthquake-resistant gel, such as urethane elastomer) may be employed. According to this, since the upper elastic member 41 and the lower elastic member 42 come into contact with each other with adhesiveness, they are easily adhered. Similarly, at least one of the upper elastic member 41 and the lower elastic member 42 is likely to be in close contact with the water stop target portion 60.

＜密着箇所＞
上側弾力部材４１および下側弾力部材４２の一組は、止水対象部分６０の全てに密着する必要はない。例えば、露出芯線７２２と、上側弾力部材４１および下側弾力部材４２の各々との間に、空隙が形成されていてもよい。ただし、この空隙は止水部材１の外部空間と連通しない。 <Close contact>
One set of the upper elastic member 41 and the lower elastic member 42 does not need to be in close contact with all the water stop target portions 60. For example, a gap may be formed between the exposed core wire 722 and each of the upper elastic member 41 and the lower elastic member 42. However, this gap does not communicate with the external space of the water blocking member 1.

止水対象部分６０を止水するためには、上側弾力部材４１、下側弾力部材４２および止水対象部分６０が、以下で説明する箇所にて、互いに密着していれば良い。 In order to stop the water stop target portion 60, the upper elastic member 41, the lower elastic member 42, and the water stop target portion 60 may be in close contact with each other at a location described below.

ここで露出芯線７２２への水が浸入しえる経路を考慮する。侵入経路として、２つの隙間が考慮される。第１の隙間は、上側弾力部材４１および下側弾力部材４２の一組と、止水対象部分６０との間の隙間である。この第１の隙間が、止水部材１の両端側の外部と露出芯線７２２とを長手方向Ｄ１に沿って連通すると（図４のブロック矢印参照）、第１の隙間を介して外部から露出芯線７２２へと水が浸入しえる。 Here, a path through which water can enter the exposed core wire 722 is considered. Two gaps are considered as intrusion paths. The first gap is a gap between a pair of the upper elastic member 41 and the lower elastic member 42 and the water stop target portion 60. When the first gap communicates between the outside on both ends of the water blocking member 1 and the exposed core wire 722 along the longitudinal direction D1 (see the block arrow in FIG. 4), the exposed core wire is exposed from the outside through the first gap. Water can enter 722.

そこで、この第１の隙間からの水の浸入を防止すべく、長手方向Ｄ１において露出芯線７２２の両側に位置する止水断面（例えばＡ−Ａ断面、Ｃ−Ｃ断面）において、上側弾力部材４１および下側弾力部材４２の一組が、全周に渡って止水対象部分６０と密着する。 Therefore, in order to prevent water from entering from the first gap, the upper elastic member 41 is disposed on the water stopping cross sections (for example, the AA cross section and the CC cross section) located on both sides of the exposed core wire 722 in the longitudinal direction D1. And one set of the lower side elastic member 42 closely_contact | adheres to the water stop target part 60 over the perimeter.

また当該止水断面において、上記密着部分に連なって、上側弾力部材４１および下側弾力部材４２が互いに密着する。例えば、Ａ−Ａ断面において、上側弾力部材４１および下側弾力部材４２は、合わせ面４１２，４２２において互いに密着し（図５）、Ｃ−Ｃ断面において、上側弾力部材４１および下側弾力部材４２は、合わせ面４１２，４２２および突起部４１６の側面において互いに密着する（図７）。 Further, in the water stop section, the upper elastic member 41 and the lower elastic member 42 are in close contact with each other, in contact with the contact portion. For example, in the AA cross section, the upper elastic member 41 and the lower elastic member 42 are in close contact with each other at the mating surfaces 412 and 422 (FIG. 5), and in the CC cross section, the upper elastic member 41 and the lower elastic member 42. Are in close contact with each other on the side surfaces of the mating surfaces 412 and 422 and the protruding portion 416 (FIG. 7).

これにより、第１の隙間による、止水部材１の外部と露出芯線７２２との間の連通を防止できる。 Thereby, the communication between the exterior of the water stop member 1 and the exposed core wire 722 due to the first gap can be prevented.

また第２の隙間は、上側弾力部材４１と下側弾力部材４２との間の隙間（合わせ面４１２，４２２の間の隙間）である。この第２の隙間が、止水部材１の側方側の外部と露出芯線７２２とを連通する（図６のブロック矢印参照）と、当該第２隙間を介して外部から露出芯線７２２へと水が浸入しえる。よって、この第２の隙間を介した水の浸入を防止すべく、上側弾力部材４１および下側弾力部材４２は、止水対象部分６０の両側の合わせ面４１２，４２２において、長手方向Ｄ１において密着する。また、この密着部は、上記２つの止水断面における上側弾力部材４１および下側弾力部材４２の密着部と連なっている。これにより、第２の隙間による、止水部材１の外部と露出芯線７２２との連通を回避できる。 The second gap is a gap between the upper elastic member 41 and the lower elastic member 42 (a gap between the mating surfaces 412 and 422). When the second gap communicates the outside of the lateral side of the water-stopping member 1 with the exposed core wire 722 (see the block arrow in FIG. 6), the water passes from the outside to the exposed core wire 722 through the second gap. Can penetrate. Therefore, in order to prevent water from entering through the second gap, the upper elastic member 41 and the lower elastic member 42 are in close contact with each other at the mating surfaces 412 and 422 on both sides of the water stop target portion 60 in the longitudinal direction D1. To do. The close contact portion is continuous with the close contact portions of the upper elastic member 41 and the lower elastic member 42 in the two water-stop sections. Thereby, communication between the outside of the water blocking member 1 and the exposed core wire 722 due to the second gap can be avoided.

以上のとおり、(i)露出芯線７２２の長手方向Ｄ１の両側に位置（止水断面）において、上側弾力部材４１および下側弾力部材４２の一組が止水対象部分６０に対して全周に渡って密着し（図５，７）、(ii)当該止水断面において、上側弾力部材４１および下側弾力部材４２は、止水対象部分６０の密着部と連なって互いに密着し（合わせ面４１２，４２２参照）、(iii)上側弾力部材４１および下側弾力部材４２は、止水対象部分６０の両側において、止水断面における密着部（合わせ面４１２，４２２）と連なって、長手方向Ｄ１において互いに密着すればよい。これにより、止水対象部分６０を止水することができる。 As described above, (i) one set of the upper elastic member 41 and the lower elastic member 42 is located on the entire circumference with respect to the water stop target portion 60 at positions (water stop cross section) on both sides in the longitudinal direction D1 of the exposed core wire 722. (Ii) In the water stop section, the upper elastic member 41 and the lower elastic member 42 are in close contact with the close contact portion of the water stop target portion 60 (matching surface 412). , 422), (iii) the upper elastic member 41 and the lower elastic member 42 are connected to the close contact portions (mating surfaces 412 and 422) in the water stop cross section on both sides of the water stop target portion 60 in the longitudinal direction D1. What is necessary is just to mutually adhere. Thereby, the water stop target part 60 can be stopped.

逆に言えば、止水断面の間の部分（例えば露出芯線７２２または芯線固定部８３に相当する部分、例えば図６）においては、上側弾力部材４１および下側弾力部材４２の各々と、止水対象部分６０との間に、外部に連通しない空隙が生じていても良い。 In other words, in the portion between the water stop sections (for example, the portion corresponding to the exposed core wire 722 or the core wire fixing portion 83, for example, FIG. 6), each of the upper elastic member 41 and the lower elastic member 42 and the water stop A gap that does not communicate with the outside may be formed between the target portion 60 and the target portion 60.

また、上側弾力部材４１および下側弾力部材４２は、長手方向Ｄ１の全てにわたって止水対象部分６０に密着していても良い。これにより止水性を向上することができる。 Moreover, the upper side elastic member 41 and the lower side elastic member 42 may be closely_contact | adhered to the water stop target part 60 over all the longitudinal directions D1. Thereby, the water stop can be improved.

＜溝４１４，４２４の形状＞
上述した例では、溝４１４，４２４が適宜に止水対象部分６０の外形に沿う形状を有すると説明した。しかしながら、上側弾力部材４１および下側弾力部材４２は弾力性を有しており、その表面は外力によって変形可能である。よって、溝４１４，４２４は必ずしも止水対象部分６０の外形に沿った形状を有する必要はなく、要するに、止水部材１を止水対象部分６０に取り付けたときに、必要な位置（少なくとも止水断面）において、上側弾力部材４１および下側弾力部材４２の一組が止水対象部分６０に密着していれば良いのである。 <Shapes of grooves 414 and 424>
In the above-described example, it has been described that the grooves 414 and 424 have shapes that appropriately conform to the outer shape of the water-stop target portion 60. However, the upper elastic member 41 and the lower elastic member 42 have elasticity, and their surfaces can be deformed by an external force. Therefore, the grooves 414 and 424 are not necessarily required to have a shape along the outer shape of the water stop target portion 60. In short, when the water stop member 1 is attached to the water stop target portion 60, a necessary position (at least the water stop In the cross section, it is only necessary that one set of the upper elastic member 41 and the lower elastic member 42 is in close contact with the water stop target portion 60.

しかしながら、溝４１４，４２４が必要な位置において止水対象部分６０の外形に沿った形状に形成されていれば、次に説明する点で好ましい。即ち、溝４１４，４２４の形状が、止水対象部分６０の外形と異なっているほど、上側弾力部材４１および下側弾力部材４２は大きく変形して、止水対象部分６０に密着することになる。この場合、上側弾力部材４１および下側弾力部材４２に採用する材料を、大きな変形を許容できる材料に制限する必要がある。一方で、溝４１４，４２４が必要な位置において止水対象部分６０の外形に沿った形状を有していれば、密着に必要な変形量が小さくなる。したがって、上側弾力部材４１および下側弾力部材４２に採用する材料の種類を増大させることができる。換言すれば、材料の選択性を向上することができる。 However, if the grooves 414 and 424 are formed in a shape along the outer shape of the water-stop target portion 60 at a necessary position, it is preferable in the point described below. That is, as the shape of the grooves 414 and 424 is different from the outer shape of the water stop target portion 60, the upper elastic member 41 and the lower elastic member 42 are greatly deformed and come into close contact with the water stop target portion 60. . In this case, it is necessary to limit the material employed for the upper elastic member 41 and the lower elastic member 42 to a material that can allow large deformation. On the other hand, if the grooves 414 and 424 have a shape that conforms to the outer shape of the water-stop target portion 60 at a necessary position, the amount of deformation necessary for close contact is reduced. Therefore, the types of materials employed for the upper elastic member 41 and the lower elastic member 42 can be increased. In other words, material selectivity can be improved.

また溝４１４，４２４は、止水対象部分６０のうち、その外形が複雑な部分に対して、当該外形よりも平坦な形状を有していてもよい。例えば芯線固定部８３の外形は、止水断面における被覆端部７４２および第二連結部８４の外形に比して複雑である。そこで、止水断面においては、溝４１４，４２４を止水対象部分６０の外形にそった形状に形成しつつも、より複雑な外形を有する部分（例えば芯線固定部８３など）においては、溝４１４，４２４を、止水対象部分６０の外形よりも平坦な面で形成してもよい。これによれば、溝４１４，４２４の形状を簡易にできるので、上側弾力部材４１および下側弾力部材４２を容易に作成することができる。これは製造コストの低減に資する。 Moreover, the groove | channel 414,424 may have a shape flatter than the said external shape with respect to the part with the complicated external shape among the water stop target parts 60. FIG. For example, the outer shape of the core wire fixing portion 83 is more complicated than the outer shapes of the covering end portion 742 and the second connecting portion 84 in the water blocking section. Therefore, in the water stop section, the grooves 414 and 424 are formed in a shape along the outer shape of the water stop target portion 60, but in a portion having a more complicated outer shape (for example, the core wire fixing portion 83), the groove 414 is formed. , 424 may be formed on a surface that is flatter than the outer shape of the water-stop target portion 60. According to this, since the shape of the grooves 414 and 424 can be simplified, the upper elastic member 41 and the lower elastic member 42 can be easily created. This contributes to a reduction in manufacturing costs.

なお上述したように、止水断面の間の区間においては、上側弾力部材４１および下側弾力部材４２は必ずしも止水対象部分６０に密着する必要はない。よって、当該区間における止水対象部分６０の外形が複雑か否かによらず、溝４１４，４２４を平坦な形状としても構わない。 As described above, in the section between the water stop sections, the upper elastic member 41 and the lower elastic member 42 do not necessarily need to be in close contact with the water stop target portion 60. Therefore, the grooves 414 and 424 may have a flat shape regardless of whether the outer shape of the water stop target portion 60 in the section is complicated.

＜固定部材＞
上述した例では、ヒンジ部３１が設けられている。しかしながら、ヒンジ部３１は必須要件ではない。例えばヒンジ部３１の替わりに、側板部２１３，２２３にそれぞれ係止部および係止突部を設けてもよい。この場合、端子付電線６に対して互いに反対側から第１部材２１および第２部材２２を互いに固定（係止）することで、止水構造付電線を作成できる。なおこの場合、第１部材２１と第２部材２２とが互いに分離した状態が開状態に相当する。 <Fixing member>
In the example described above, the hinge portion 31 is provided. However, the hinge part 31 is not an essential requirement. For example, instead of the hinge portion 31, a locking portion and a locking protrusion may be provided on the side plate portions 213 and 223, respectively. In this case, the first member 21 and the second member 22 are fixed (locked) to each other from the opposite sides with respect to the terminal-attached electric wire 6, whereby the electric wire with a water stop structure can be created. In this case, the state where the first member 21 and the second member 22 are separated from each other corresponds to the open state.

以上のようにこの発明は詳細に説明されたが、上記した説明は、すべての局面において、例示であって、この発明がそれに限定されるものではない。例示されていない無数の変形例が、この発明の範囲から外れることなく想定され得るものと解される。 As described above, the present invention has been described in detail. However, the above description is illustrative in all aspects, and the present invention is not limited thereto. It is understood that countless variations that are not illustrated can be envisaged without departing from the scope of the present invention.

１止水部材
２１上側部材（第１部材）
２２下側部材（第２部材）
４１上側弾力部材（第１弾力部材）
４２下側弾力部材（第２弾力部材）
６端子付電線
７電線
８端子部
６０止水対象部分 1 Water stop member 21 Upper member (first member)
22 Lower member (second member)
41 Upper elastic member (first elastic member)
42 Lower elastic member (second elastic member)
6 Electric wire with terminal 7 Electric wire 8 Terminal part 60 Water stop target part

Claims

Of the electric wire with a terminal having an electric wire in which the core wire is exposed at the tip end and a terminal portion provided on the electric wire while being in contact with the exposed exposed core wire, the water-stop target portion including the exposed core wire is stopped. A water-stopping member,
A first member;
A second member having a cylindrical shape together with the first member in a closed state closed with respect to the first member;
A first elastic member provided on an inner surface of the first member;
A second elastic member provided on an inner surface of the second member, surrounding the water-stop target portion together with the first elastic member in the closed state, and a second elastic member separate from the first elastic member ; Water stop member.

Of the electric wire with a terminal having an electric wire in which the core wire is exposed at the tip end and a terminal portion provided on the electric wire while being in contact with the exposed exposed core wire, the water-stop target portion including the exposed core wire is stopped. A water-stopping member,
A first member;
A second member having a cylindrical shape together with the first member in a closed state closed with respect to the first member;
A first elastic member provided on an inner surface of the first member;
A second elastic member provided on an inner surface of the second member and surrounding the water-stop target portion together with the first elastic member in the closed state;
With
Each of the first member and the second member has a bottom plate portion and a pair of side plate portions projecting on both sides of the bottom plate portion, and has a substantially U-shaped cross-sectional shape,
In the open state in which the first member and the second member are opened to each other, the first elastic member and the second elastic member protrude from the tips of the side plate portions of the first member and the second member, respectively. A pair of protruding portions that
In the closed state, the first elastic member and the second elastic member are pressed against each other at the pair of projecting portions and are in close contact with each other.

The water-stop member according to claim 1 or 2,
At least one of the first elastic member and the second elastic member is a water stop member having adhesiveness.

The water stop member according to claim 3,
The water stopping member, wherein the at least one of the first elastic member and the second elastic member is formed of gel.

Of the electric wire with a terminal having an electric wire in which the core wire is exposed at the tip end and a terminal portion provided on the electric wire while being in contact with the exposed exposed core wire, the water-stop target portion including the exposed core wire is stopped. A water-stopping member,
A first member;
A second member having a cylindrical shape together with the first member in a closed state closed with respect to the first member;
A first elastic member provided on an inner surface of the first member;
A second elastic member provided on an inner surface of the second member and surrounding the water-stop target portion together with the first elastic member in the closed state;
With
The first elastic member and the second elastic member are formed with a groove for accommodating the water stop target portion,
In the open state in which the first member and the second member are opened from each other, the groove has the first cross section and the second cross section positioned on both sides of the exposed core wire in the longitudinal direction of the electric wire. A water stop member having a shape along the outer shape of the water target portion.

An electric wire with a terminal having an electric wire with a core wire exposed at the tip, and a terminal portion provided on the electric wire while being in contact with the exposed core wire being the exposed core wire;
The electric wire with a water stop structure provided with the water stop member according to any one of claims 1 to 5, wherein the water stop target portion including the exposed core wire among the electric wires with terminals is stopped.