JP2020202079A - Terminal fitting and electric wire with terminal - Google Patents

Terminal fitting and electric wire with terminal Download PDF

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Publication number
JP2020202079A
JP2020202079A JP2019108137A JP2019108137A JP2020202079A JP 2020202079 A JP2020202079 A JP 2020202079A JP 2019108137 A JP2019108137 A JP 2019108137A JP 2019108137 A JP2019108137 A JP 2019108137A JP 2020202079 A JP2020202079 A JP 2020202079A
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electric wire
terminal
arch
beam shape
arch portion
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JP7221804B2 (en
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伊藤 直樹
Naoki Ito
直樹 伊藤
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Yazaki Corp
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Yazaki Corp
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Abstract

To provide a terminal fitting that can achieve both reliability of electrical connection between an electric wires and the terminal fitting and workability for connecting the electric wire and the terminal fitting, and an electric wire with a terminals using the terminal fitting.SOLUTION: A terminal fitting 1 includes a terminal connection portion 10 to which a mating terminal is connected, and an electric wire connection portion 20 to which a conductor core wire 3 of the electric wire 2 is connected. The electric wire connection portion 20 includes an arch portion 21 having a double-sided beam shape, at least two penetration portions 26 and 27 provided so as to penetrate the arch portion, and a base end portion 22, 23, 24, and 25 that support both ends of the arch portion 21. The arch portion 21 can switch the beam shape from a state in which the arch portion has a beam shape that is convex in a predetermined direction with respect to the base end portion to a state in which the arch portion has another beam shape. The base end portion includes a first portion 22 that supports one end of the arch portion 21, a second portion 23 that supports the other end of the arch portion 21, and third portions 24 and 25 that elastically connect the first portion 22 and the second portion 23.SELECTED DRAWING: Figure 2

Description

本発明は、電線に取り付けられる端子金具、及び、端子付き電線に関する。 The present invention relates to a terminal fitting attached to an electric wire and an electric wire with a terminal.

従来から、例えば、車両に配索されるワイヤハーネスには、導体芯線を有する電線に端子金具が取り付けられた端子付き電線が使用されている。この種の端子付き電線の一つは、電線の端末から露出する導体芯線の外周を取り囲むように端子金具のバレル部を加締めることで、導体芯線に対して端子金具を圧着するようになっている(例えば、特許文献1を参照)。 Conventionally, for example, in a wire harness distributed to a vehicle, an electric wire with a terminal in which a terminal fitting is attached to an electric wire having a conductor core wire has been used. One of the electric wires with terminals of this type is to crimp the terminal metal fittings to the conductor core wire by crimping the barrel part of the terminal metal fittings so as to surround the outer circumference of the conductor core wire exposed from the terminal of the electric wire. (See, for example, Patent Document 1).

特開2003−059612号公報Japanese Unexamined Patent Publication No. 2003-059612

上述した従来の端子付き電線では、一般に、アンビル及びクリンパ等の加締め用の金型を備える圧着装置を用いて、電線と端子金具とが接続される。このような加締めによる接続は、導体芯線とバレル部とを強固に密着させて電気的接続の信頼性を高められる点でメリットがあるものの、圧着装置などの専用の設備を要する点でデメリットがある。そこで、電気的接続の信頼性を維持しながら、より作業性に優れた手法で電線と端子金具とを接続することが望まれている。 In the above-mentioned conventional electric wire with a terminal, the electric wire and the terminal fitting are generally connected by using a crimping device provided with a crimping die such as an anvil and a crimper. This kind of crimping connection has the advantage that the conductor core wire and the barrel part are firmly adhered to each other and the reliability of the electrical connection can be improved, but it has the disadvantage that it requires special equipment such as a crimping device. is there. Therefore, it is desired to connect the electric wire and the terminal fitting by a method having more excellent workability while maintaining the reliability of the electrical connection.

本発明は、上述した事情に鑑みてなされたものであり、その目的は、電線と端子金具との電気的接続の信頼性と、電線と端子金具とを接続する作業性と、を両立可能な端子金具、及び、その端子金具を用いた端子付き電線、を提供することにある。 The present invention has been made in view of the above circumstances, and an object of the present invention is to achieve both reliability of electrical connection between an electric wire and a terminal fitting and workability for connecting the electric wire and the terminal fitting. It is an object of the present invention to provide a terminal fitting and an electric wire with a terminal using the terminal fitting.

前述した目的を達成するために、本発明に係る端子金具よび端子付き電線は、下記[1]〜[5]を特徴としている。
[1]
相手側端子が接続される端子接続部と、電線の導体芯線が接続される電線接続部と、を備える端子金具であって、
前記電線接続部は、
両持ち梁状の形状を有するアーチ部と、前記アーチ部を貫通するように設けられる少なくとも2つの貫通箇所と、前記アーチ部の両端を支持する基端部と、を有し、
前記アーチ部は、
当該アーチ部が前記基端部に対して所定向きに凸となる梁形状を有する状態から他の梁形状を有する状態へ、梁形状の切り替えが可能である、ように構成される、
端子金具であること。
[2]
上記[1]に記載の端子金具において、
前記アーチ部は、
前記切り替えの前の梁形状において、前記少なくとも2つの前記貫通箇所が一直線上に配置されるように、構成される、
端子金具であること。
[3]
上記[1]又は上記[2]に記載の端子金具において、
前記基端部は、
前記アーチ部の一端を支持する第1部分と、前記アーチ部の他端を支持する第2部分と、前記第1部分と前記第2部分とを弾性的に連結する第3部分と、を有する、
端子金具であること。
[4]
電線と、前記電線に取り付けられる上記[1]〜上記[3]の何れか一つに記載の端子金具と、を備える端子付き電線であって、
前記端子金具は、
前記切り替えの後の梁形状を有し、
前記電線の前記導体芯線は、
前記少なくとも2つの前記貫通箇所のうちの一の前記貫通箇所を一方側から他方側へ通り抜けるとともに、他の前記貫通箇所を前記他方側から前記一方側に通り抜ける状態にて、前記アーチ部に保持される、
端子付き電線であること。
[5]
上記[4]に記載の端子付き電線であって、
前記少なくとも2つの前記貫通箇所の周縁部と前記導体芯線との接点を介し、前記アーチ部と前記導体芯線とが導通される、
端子付き電線であること。
In order to achieve the above-mentioned object, the terminal fitting and the electric wire with a terminal according to the present invention are characterized by the following [1] to [5].
[1]
A terminal fitting provided with a terminal connection portion to which the other end terminal is connected and an electric wire connection portion to which the conductor core wire of the electric wire is connected.
The electric wire connection portion is
It has an arch portion having a double-sided beam shape, at least two penetrating points provided so as to penetrate the arch portion, and a base end portion that supports both ends of the arch portion.
The arch part
The beam shape can be switched from a state in which the arch portion has a beam shape that is convex in a predetermined direction with respect to the base end portion to a state in which the arch portion has another beam shape.
Must be a terminal bracket.
[2]
In the terminal fitting described in [1] above,
The arch part
In the beam shape before the switching, the at least two penetration points are configured to be arranged in a straight line.
Must be a terminal bracket.
[3]
In the terminal fitting according to the above [1] or the above [2].
The base end portion
It has a first portion that supports one end of the arch portion, a second portion that supports the other end of the arch portion, and a third portion that elastically connects the first portion and the second portion. ,
Must be a terminal bracket.
[4]
An electric wire with a terminal comprising the electric wire and the terminal fitting according to any one of the above [1] to [3] attached to the electric wire.
The terminal fitting
It has a beam shape after the switching
The conductor core wire of the electric wire is
It is held by the arch portion in a state where it passes through the penetration point of one of the at least two penetration points from one side to the other side and passes through the other penetration point from the other side to the one side. Ru,
Must be an electric wire with terminals.
[5]
The electric wire with a terminal according to the above [4].
The arch portion and the conductor core wire are conducted through the contact points between the peripheral edge portions of the at least two penetration portions and the conductor core wire.
Must be an electric wire with terminals.

上記[1]の構成の端子金具によれば、従来の端子付き電線において電線との接続に用いられるバレル部ではなく、両持ち梁状の形状を有するアーチ部を用いて、端子金具と電線との接続を行い得る。例えば、まず、アーチ部が基端部に対して所定向きに凸となる梁形状(即ち、切り替え前の梁形状)を有する状態にて、アーチ部に設けられる少なくとも2つの貫通箇所に、電線の導体芯線を挿通させる。次いで、アーチ部が他の梁形状(即ち、切り替え後の梁形状。例えば、基端部に対して逆向きに凸となる梁形状)を有する状態となるように、アーチ部を導体芯線とともに変形させる。これにより、導体芯線がこれら貫通箇所に引っ掛かるように係合され、導体芯線がアーチ部に保持される。ここで、アーチ部の梁形状の切り替えは、従来のような専用の装置などを用いることなく、作業者の手作業などで行うことが可能である。このように、本構成の端子金具を用いれば、アーチ部の貫通箇所に導体芯線を挿通させてアーチ部の梁形状を切り替えるだけで、端子金具と電線とを接続できる。なお、必要に応じてアーチ部の梁形状を切り替えの前の梁形状に戻すことで、端子金具から導体芯線を取り外すことも可能である。したがって、本構成の端子金具は、電線と端子金具との電気的接続の信頼性と、電線と端子金具とを接続する作業性と、を両立可能である。 According to the terminal fitting having the configuration of [1] above, the terminal fitting and the electric wire are formed by using an arch portion having a double-sided beam shape instead of the barrel portion used for connecting to the electric wire in the conventional electric wire with a terminal. Can make a connection. For example, first, in a state where the arch portion has a beam shape (that is, a beam shape before switching) that is convex in a predetermined direction with respect to the base end portion, at least two through points provided in the arch portion are formed by electric wires. Insert the conductor core wire. Next, the arch portion is deformed together with the conductor core wire so that the arch portion has another beam shape (that is, a beam shape after switching, for example, a beam shape that is convex in the opposite direction to the base end portion). Let me. As a result, the conductor core wire is engaged so as to be caught in these penetrating points, and the conductor core wire is held in the arch portion. Here, the beam shape of the arch portion can be switched manually by an operator without using a conventional dedicated device or the like. In this way, if the terminal fitting of this configuration is used, the terminal fitting and the electric wire can be connected only by inserting the conductor core wire into the penetrating portion of the arch portion and switching the beam shape of the arch portion. It is also possible to remove the conductor core wire from the terminal fitting by returning the beam shape of the arch portion to the beam shape before switching as needed. Therefore, the terminal fitting of this configuration can achieve both the reliability of the electrical connection between the electric wire and the terminal fitting and the workability of connecting the electric wire and the terminal fitting.

上記[2]の構成の端子金具によれば、梁形状の切り替えの前において、2つの貫通箇所が一直線上に配置されるようになっている。よって、例えば、上述したように端子金具と電線との接続を行う際、このように配置された2つの貫通箇所に電線の導体芯線を容易に挿通できる。その結果、電線と端子金具とを接続する作業性を更に向上できる。 According to the terminal fitting having the configuration of [2] above, the two penetrating points are arranged in a straight line before the beam shape is switched. Therefore, for example, when connecting the terminal fitting and the electric wire as described above, the conductor core wire of the electric wire can be easily inserted into the two penetrating points arranged in this way. As a result, the workability of connecting the electric wire and the terminal fitting can be further improved.

上記[3]の構成の端子金具によれば、例えば、アーチ部の梁形状の切り替えを行う際、基端部の第3部分(即ち、アーチ部の両端が繋がる第1部分と第2部分とを連結する部分)が弾性的に変形することで、梁形状の切り替えを適正に行うことができる。また、例えば、第3部分の弾性係数を調整することで、アーチ部の梁形状の切り替えの容易さと、アーチ部による導体芯線の保持力の大きさと、のバランスを調整することも可能である。その結果、電線と端子金具との電気的接続の信頼性と、電線と端子金具とを接続する作業性と、を更に適正に両立できる。 According to the terminal fitting having the configuration of [3] above, for example, when switching the beam shape of the arch portion, the third portion of the base end portion (that is, the first portion and the second portion where both ends of the arch portion are connected) By elastically deforming the portion that connects the beams, the beam shape can be properly switched. Further, for example, by adjusting the elastic modulus of the third portion, it is possible to adjust the balance between the ease of switching the beam shape of the arch portion and the magnitude of the holding force of the conductor core wire by the arch portion. As a result, the reliability of the electrical connection between the electric wire and the terminal fitting and the workability of connecting the electric wire and the terminal fitting can be more appropriately achieved.

上記[4]の構成の端子付き電線によれば、導体芯線が少なくとも2つの貫通箇所を通り抜けた状態でそれら貫通箇所に引っ掛かるように係合され、導体芯線がアーチ部に保持されている。このような保持は、例えば、以下の手順にて実現し得る。まず、アーチ部が基端部に対して所定向きに凸となる梁形状を有する状態にて、アーチ部に設けられる少なくとも2つの貫通箇所に、電線の導体芯線を挿通させる。次いで、アーチ部が他の梁形状(例えば、基端部に対して逆向きに凸となる梁形状)を有する状態となるように、アーチ部を導体芯線とともに変形させる。ここで、アーチ部の梁形状の切り替えは、従来のような専用の装置などを用いることなく、作業者の手作業などで行うことが可能である。このように、アーチ部の貫通箇所に導体芯線を挿通させてアーチ部の梁形状を切り替えるだけで、端子金具と電線とを接続できる。したがって、本構成の端子付き電線は、電線と端子金具との電気的接続の信頼性と、電線と端子金具とを接続する作業性と、を両立可能である。 According to the electric wire with a terminal having the configuration of the above [4], the conductor core wire is engaged so as to be caught in the penetrating points in a state where it has passed through at least two penetrating points, and the conductor core wire is held in the arch portion. Such holding can be realized, for example, by the following procedure. First, in a state where the arch portion has a beam shape that is convex in a predetermined direction with respect to the base end portion, the conductor core wire of the electric wire is inserted into at least two penetrating points provided in the arch portion. Next, the arch portion is deformed together with the conductor core wire so that the arch portion has another beam shape (for example, a beam shape that is convex in the opposite direction to the base end portion). Here, the beam shape of the arch portion can be switched manually by an operator without using a conventional dedicated device or the like. In this way, the terminal fitting and the electric wire can be connected only by inserting the conductor core wire through the penetrating portion of the arch portion and switching the beam shape of the arch portion. Therefore, the electric wire with a terminal of this configuration can achieve both the reliability of the electrical connection between the electric wire and the terminal fitting and the workability of connecting the electric wire and the terminal fitting.

上記[5]の構成の端子付き電線によれば、貫通箇所の周縁部と導体芯線との接点を通じ、アーチ部と導体芯線とが導通する。ここで、例えば、アーチ部をプレス加工(打ち抜き加工)することで貫通箇所を形成した場合、貫通箇所の周縁部は、通常、鋭利なエッジ形状を有することになる。よって、アーチ部の梁形状の切り替えを経て、この鋭利な周縁部が導体芯線に食い込むように(例えば、導体芯線の表面の酸化膜を破壊しながら)周縁部が導体芯線に押し付けられることで、両者を適正に接続できる。その結果、電線と端子金具との電気的接続の信頼性を更に向上できる。 According to the electric wire with a terminal having the configuration of [5] above, the arch portion and the conductor core wire are electrically connected to each other through the contact point between the peripheral portion of the penetrating portion and the conductor core wire. Here, for example, when a penetrating portion is formed by press working (punching) the arch portion, the peripheral edge portion of the penetrating portion usually has a sharp edge shape. Therefore, after switching the beam shape of the arch portion, the peripheral edge portion is pressed against the conductor core wire so that the sharp peripheral edge portion bites into the conductor core wire (for example, while destroying the oxide film on the surface of the conductor core wire). Both can be connected properly. As a result, the reliability of the electrical connection between the electric wire and the terminal fitting can be further improved.

このように、本発明によれば、電線と端子金具との電気的接続の信頼性と、電線と端子金具とを接続する作業性と、を両立可能な端子金具、及び、その端子金具を用いた端子付き電線を提供できる。 As described above, according to the present invention, a terminal fitting capable of achieving both reliability of electrical connection between the electric wire and the terminal fitting and workability for connecting the electric wire and the terminal fitting, and the terminal fitting thereof are used. We can provide electric wires with terminals.

以上、本発明について簡潔に説明した。更に、以下に説明される発明を実施するための形態を添付の図面を参照して通読することにより、本発明の詳細は更に明確化されるであろう。 The present invention has been briefly described above. Further, the details of the present invention will be further clarified by reading through the embodiments for carrying out the invention described below with reference to the accompanying drawings.

図1は、本発明の実施形態に係る端子金具の斜視図であり、図1(a)はアーチ部が第1の梁形状となっている状態を示し、図1(b)は、アーチ部が第2の梁形状となっている状態を示す。FIG. 1 is a perspective view of a terminal fitting according to an embodiment of the present invention, FIG. 1A shows a state in which an arch portion has a first beam shape, and FIG. 1B shows an arch portion. Indicates a state in which is the second beam shape. 図2(a)〜図2(c)は、本発明の実施形態に係る端子金具を電線に取り付ける際の手順を説明するための図1(a)のA−A断面に相当する断面図である。2 (a) to 2 (c) are cross-sectional views corresponding to the cross sections AA of FIG. 1 (a) for explaining a procedure for attaching the terminal fitting according to the embodiment of the present invention to the electric wire. is there. 図3は、図2(c)に示す電線接続部の周囲の拡大図である。FIG. 3 is an enlarged view of the periphery of the electric wire connection portion shown in FIG. 2 (c). 図4(a)は、変形例に係る端子金具のアーチ部を示す斜視図であり、図4(b)は、他の変形例に係る端子金具のアーチ部を示す斜視図である。FIG. 4A is a perspective view showing an arch portion of the terminal fitting according to the modified example, and FIG. 4B is a perspective view showing the arch portion of the terminal fitting according to another modified example. 図5(a)は、変形例に係るアーチ部の貫通箇所を示す平面図であり、図5(b)は、他の変形例に係るアーチ部の貫通箇所を示す平面図であり、図5(c)は、他の変形例に係るアーチ部の貫通箇所を示す平面図である。FIG. 5A is a plan view showing a penetrating portion of the arch portion according to the modified example, and FIG. 5B is a plan view showing the penetrating portion of the arch portion according to another modified example. (C) is a plan view showing a penetration portion of an arch portion according to another modified example.

<実施形態>
以下、図面を参照しながら、電線2に本発明の実施形態に係る端子金具1を取り付けた端子付き電線5について説明する。以下、説明の便宜上、端子金具1の軸方向(嵌合方向)において、相手側端子(図示省略)が嵌合する側(図1〜図5において左側)を先端側(前方側)とし、その反対側(図1〜図5において右側)を基端側(後方側)と称呼する。また、図1〜図4において上側及び下側をそれぞれ、上側及び下側と称呼し、軸方向及び上下方向に直交する方向を幅方向と称呼する。
<Embodiment>
Hereinafter, the electric wire 5 with a terminal to which the terminal metal fitting 1 according to the embodiment of the present invention is attached to the electric wire 2 will be described with reference to the drawings. Hereinafter, for convenience of explanation, in the axial direction (fitting direction) of the terminal fitting 1, the side (left side in FIGS. 1 to 5) in which the mating terminal (not shown) is fitted is defined as the tip side (front side). The opposite side (right side in FIGS. 1 to 5) is referred to as a base end side (rear side). Further, in FIGS. 1 to 4, the upper side and the lower side are referred to as upper side and lower side, respectively, and the directions orthogonal to the axial direction and the vertical direction are referred to as the width direction.

電線2の端部に端子金具1が接続され、端子金具1と電線2の導体芯線3とが電気的に接続される(詳細は、図2を参照しながら後述される)。端子金具1と電線2とにより、端子付き電線5が構成される。端子付き電線5は、例えば、自動車等の車両に配索されるワイヤハーネスを構成する。 The terminal fitting 1 is connected to the end of the electric wire 2, and the terminal fitting 1 and the conductor core wire 3 of the electric wire 2 are electrically connected (details will be described later with reference to FIG. 2). The terminal fitting 1 and the electric wire 2 constitute an electric wire 5 with a terminal. The electric wire 5 with a terminal constitutes, for example, a wire harness to be distributed to a vehicle such as an automobile.

電線2は、図2(a)に示すように、導体芯線3と、導体芯線3を覆う樹脂からなる絶縁被覆4とで構成される。導体芯線3は、典型的には、銅もしくは銅合金、又は、アルミニウム若しくはアルミニウム合金から構成され、複数の素線を撚り合わせて構成されている。電線2の導体芯線3をアルミニウム又はアルミニウム合金から構成することで、端子付き電線5が軽量化され、端子付き電線5を含んで構成されるワイヤハーネスも軽量化される。軽量化された端子付き電線5は、特に電気自動車やハイブリッド自動車などのワイヤハーネスが多用される車両に好適に用いられる。 As shown in FIG. 2A, the electric wire 2 is composed of a conductor core wire 3 and an insulating coating 4 made of a resin that covers the conductor core wire 3. The conductor core wire 3 is typically made of copper or a copper alloy, or aluminum or an aluminum alloy, and is made by twisting a plurality of strands. By forming the conductor core wire 3 of the electric wire 2 from aluminum or an aluminum alloy, the weight of the electric wire 5 with terminals is reduced, and the weight of the wire harness including the electric wire 5 with terminals is also reduced. The lightweight electric wire 5 with a terminal is particularly preferably used for a vehicle such as an electric vehicle or a hybrid vehicle in which a wire harness is frequently used.

以下、端子金具1の構成について説明する。図1に示すように、端子金具1は、軸方向において先端側から基端側に向けて、順に、相手側端子(図示省略)と接続されることになる端子接続部10、及び、電線2の端末における絶縁被覆4から露出した導体芯線3と電気的に接続される電線接続部20を有している。端子接続部10と電線接続部20とは、連結部30によって互いに連結されている。 Hereinafter, the configuration of the terminal fitting 1 will be described. As shown in FIG. 1, the terminal fitting 1 is connected to a mating terminal (not shown) in order from the tip end side to the base end side in the axial direction, and a terminal connection portion 10 and an electric wire 2 The terminal has an electric wire connecting portion 20 that is electrically connected to the conductor core wire 3 exposed from the insulating coating 4. The terminal connecting portion 10 and the electric wire connecting portion 20 are connected to each other by the connecting portion 30.

端子金具1は、典型的には、銅または銅合金などからなる金属板(板状体)に対してプレス加工(打ち抜き加工および曲げ加工)を施すことで形成される。プレス加工後の端子金具1の全表面(表裏面及び側面)には、電線2の導体芯線3の耐食性を向上させる等の目的から、スズ(錫。Sn)等によるメッキ処理が施されていることが好適である。 The terminal fitting 1 is typically formed by performing press working (punching and bending) on a metal plate (plate-like body) made of copper or a copper alloy or the like. The entire surface (front and back surfaces and side surfaces) of the terminal fitting 1 after press working is plated with tin (tin. Sn) or the like for the purpose of improving the corrosion resistance of the conductor core wire 3 of the electric wire 2. Is preferable.

端子接続部10は、図1に示すように、先端部分が開口した矩形筒状に形成される。端子接続部10の先端側開口11に相手側端子(図示省略)が挿し込まれ、端子接続部10と相手側端子とが電気的に接続されることになる。矩形筒状の端子接続部10を構成する底壁(下面)は、端子接続部10の基端側端から基端側に延在しており、このように端子接続部10から基端側に延在する底壁が、連結部30を構成している。 As shown in FIG. 1, the terminal connection portion 10 is formed in a rectangular tubular shape with an open tip portion. A mating terminal (not shown) is inserted into the tip end side opening 11 of the terminal connecting portion 10, and the terminal connecting portion 10 and the mating terminal are electrically connected. The bottom wall (lower surface) constituting the rectangular tubular terminal connecting portion 10 extends from the proximal end side end of the terminal connecting portion 10 to the proximal end side, and thus extends from the terminal connecting portion 10 to the proximal end side. The extending bottom wall constitutes the connecting portion 30.

電線接続部20は、図1に示すように、軸方向に延びる両持ち梁状の形状を有するアーチ部21と、アーチ部21の先端側端部を支持する第1部分22と、アーチ部21の基端側端部を支持する第2部分23と、第1部分22と第2部分とを軸方向に連結する第3部分24と、を備える。 As shown in FIG. 1, the electric wire connecting portion 20 includes an arch portion 21 having a double-sided beam-like shape extending in the axial direction, a first portion 22 that supports the distal end portion of the arch portion 21, and an arch portion 21. A second portion 23 that supports the base end side end portion of the above, and a third portion 24 that connects the first portion 22 and the second portion in the axial direction are provided.

アーチ部21は、軸方向に延びる矩形状の板状部が上下方向に湾曲するように当該板状部の軸方向両端部が支持された部分である。アーチ部21は、図1(a)に示すように、軸方向両端部に対して軸方向中央部が上方に突出するように曲線状に湾曲して上向きに凸となる第1の梁形状と、図1(b)に示すように、軸方向両端部に対して軸方向中央部が下方に突出するように曲線状に湾曲して下向きに凸となる第2の梁形状と、の間で梁形状の切り替えが可能に構成されている。 The arch portion 21 is a portion in which both ends in the axial direction of the plate-shaped portion are supported so that the rectangular plate-shaped portion extending in the axial direction is curved in the vertical direction. As shown in FIG. 1A, the arch portion 21 has a first beam shape that is curved in a curved shape so that the central portion in the axial direction protrudes upward with respect to both ends in the axial direction and is convex upward. , As shown in FIG. 1 (b), between the second beam shape which is curved in a curved shape so that the central portion in the axial direction protrudes downward with respect to both ends in the axial direction and is convex downward. The beam shape can be switched.

第1部分22は、アーチ部21の先端側端部を支持するとともに幅方向に延びる部分であり、連結部30の基端側端部に連結されている。第2部分23は、アーチ部21の基端側端部を支持するとともに幅方向に延びる部分である。 The first portion 22 is a portion that supports the distal end side end portion of the arch portion 21 and extends in the width direction, and is connected to the proximal end side end portion of the connecting portion 30. The second portion 23 is a portion that supports the base end side end portion of the arch portion 21 and extends in the width direction.

第3部分24は、第1部分22の幅方向両端部と第2部分23の幅方向両端部とを軸方向に連結するように、アーチ部21の幅方向両外側にて軸方向に延びる一対の部分である。各第3部分24の軸方向中央部には、下方に突出するように曲線状に湾曲する湾曲部25が形成されている。一対の湾曲部25が軸方向に弾性変形することで、第1部分22及び第2部分23の間の軸方向の間隔(即ち、アーチ部21の軸方向両端部間の軸方向の間隔)が変動可能となっている。換言すれば、第3部分24は、第1部分22と第2部分23とを軸方向において弾性的に連結している。 The third portion 24 is a pair extending in the axial direction on both outer sides of the arch portion 21 so as to axially connect both ends in the width direction of the first portion 22 and both ends in the width direction of the second portion 23. Is the part of. A curved portion 25 that curves in a curved shape so as to project downward is formed at the central portion in the axial direction of each third portion 24. The pair of curved portions 25 are elastically deformed in the axial direction, so that the axial spacing between the first portion 22 and the second portion 23 (that is, the axial spacing between the axially end portions of the arch portion 21) is increased. It is variable. In other words, the third portion 24 elastically connects the first portion 22 and the second portion 23 in the axial direction.

アーチ部21における頂部と先端側端部との間には、アーチ部21の厚さ方向に貫通する貫通箇所26が形成されて、アーチ部21における頂部と基端側端部との間には、アーチ部21の厚さ方向に貫通する貫通箇所27が形成されている。2つの貫通箇所26,27の各々は、本例では、アーチ部21の幅方向の中央に配置された円形状の貫通孔である。 A penetration portion 26 penetrating in the thickness direction of the arch portion 21 is formed between the top portion and the distal end side end portion of the arch portion 21, and between the top portion and the proximal end side end portion of the arch portion 21. , A penetration portion 27 penetrating in the thickness direction of the arch portion 21 is formed. Each of the two penetration points 26 and 27 is, in this example, a circular through hole arranged at the center of the arch portion 21 in the width direction.

アーチ部21が第1の梁形状となっている状態では、図1(a)に示すように、2つの貫通箇所26,27は、第1部分22及び第2部分23に対して上側に位置しており、軸方向に沿って一直線上に配置されている(図2(a)も参照)。アーチ部21が第2の梁形状となっている状態では、図1(b)に示すように、2つの貫通箇所26,27は、第1部分22及び第2部分23に対して下側に位置しており、軸方向に沿って一直線上に配置されている。以上、端子金具1の構成について説明した。 In the state where the arch portion 21 has the shape of the first beam, as shown in FIG. 1A, the two penetration points 26 and 27 are located above the first portion 22 and the second portion 23. They are arranged in a straight line along the axial direction (see also FIG. 2A). In the state where the arch portion 21 has the shape of the second beam, as shown in FIG. 1 (b), the two penetration points 26 and 27 are on the lower side with respect to the first portion 22 and the second portion 23. It is located and is arranged in a straight line along the axial direction. The configuration of the terminal fitting 1 has been described above.

次いで、図2を参照しながら、端子金具1を電線2に取り付ける際の手順について説明する。その準備として、図2(a)に示すように、端子金具1のアーチ部21を第1の梁形状に維持しておき、また、電線2の端末において、絶縁被覆4を除去して導体芯線3を露出させておく。 Next, the procedure for attaching the terminal fitting 1 to the electric wire 2 will be described with reference to FIG. As a preparation for this, as shown in FIG. 2A, the arch portion 21 of the terminal fitting 1 is maintained in the shape of the first beam, and at the terminal of the electric wire 2, the insulating coating 4 is removed to remove the conductor core wire. 3 is exposed.

まず、図2(a)に示すように、端子金具1のアーチ部21に設けられた2つの貫通箇所26,27に向けて、電線2の露出した導体芯線3を基端側から近づけていき、図2(b)に示すように、導体芯線3を、貫通箇所27及び貫通箇所26の順に、2箇所の貫通箇所26,27に挿通させる。 First, as shown in FIG. 2A, the exposed conductor core wire 3 of the electric wire 2 is brought closer from the base end side toward the two penetrating portions 26 and 27 provided in the arch portion 21 of the terminal fitting 1. , As shown in FIG. 2B, the conductor core wire 3 is inserted into the two penetration points 26, 27 in the order of the penetration point 27 and the penetration point 26.

次いで、図2(b)の白矢印に示すように、アーチ部21の頂部を下向きに押圧することで、アーチ部21の梁形状が第1の梁形状から第2の梁形状へと切り替わるように、アーチ部21を導体芯線3とともに変形させる。 Next, as shown by the white arrow in FIG. 2B, the beam shape of the arch portion 21 is switched from the first beam shape to the second beam shape by pressing the top of the arch portion 21 downward. The arch portion 21 is deformed together with the conductor core wire 3.

アーチ部21の梁形状が第1の梁形状から第2の梁形状へと切り替わる途中において、アーチ部21の湾曲度合が減少(又は増大)するにつれて、アーチ部21の軸方向両端部間の軸方向の間隔が増大(又は減少)する。このようなアーチ部21の軸方向両端部間の軸方向の間隔の変動は、一対の湾曲部25が軸方向に弾性変形することで吸収される(図2(b)の2本の黒矢印を参照)。アーチ部21の押圧は、作業者の手作業で行ってもよいし、所定の装置を利用して行ってもよい。 While the beam shape of the arch portion 21 is being switched from the first beam shape to the second beam shape, as the degree of curvature of the arch portion 21 decreases (or increases), the axis between both ends in the axial direction of the arch portion 21. The directional spacing increases (or decreases). Such fluctuations in the axial distance between both ends of the arch portion 21 in the axial direction are absorbed by elastic deformation of the pair of curved portions 25 in the axial direction (two black arrows in FIG. 2B). See). The pressing of the arch portion 21 may be performed manually by an operator or may be performed by using a predetermined device.

この結果、図2(c)に示すように、アーチ部21の梁形状が第2の梁形状に切り替わる。導体芯線3は、貫通箇所27をアーチ部21の厚さ方向の一方側から他方側へ通り抜けるとともに、貫通箇所26を当該厚さ方向の他方側から一方側に通り抜ける状態にて、2つの貫通箇所26,27に引っ掛かるように係合され、アーチ部21に保持される。 As a result, as shown in FIG. 2C, the beam shape of the arch portion 21 is switched to the second beam shape. The conductor core wire 3 passes through the penetrating portion 27 from one side in the thickness direction of the arch portion 21 to the other side, and also passes through the penetrating portion 26 from the other side in the thickness direction to one side. It is engaged so as to be hooked on 26 and 27 and is held by the arch portion 21.

なお、このように導体芯線3をアーチ部21で保持するにあたり、導体芯線3の端末部3a(貫通箇所26よりも端子接続部10に近い位置にある部分)を、第1部分22の上面などに任意の方法で固定してもよい。導体芯線3の端末部3aが固定されることで、2つの貫通箇所26,27による導体芯線3の係合を、より強固かつ確実に行い得る。端末部3aの固定は、アーチ部21の梁形状の切り替え前になされてもよいし、切り替え後になされてもよい。 In addition, when the conductor core wire 3 is held by the arch portion 21 in this way, the terminal portion 3a of the conductor core wire 3 (the portion located closer to the terminal connection portion 10 than the penetration portion 26) is formed on the upper surface of the first portion 22 or the like. It may be fixed to any method. By fixing the terminal portion 3a of the conductor core wire 3, the engagement of the conductor core wire 3 by the two through points 26 and 27 can be performed more firmly and reliably. The terminal portion 3a may be fixed before the beam shape of the arch portion 21 is switched, or may be fixed after the switching.

図2(c)に示す状態では、図3に示すように、導体芯線3が2つの貫通箇所26,27の周縁部に引っ掛かる4つの箇所Pにて、貫通箇所26,27の周縁部と導体芯線3との間にて、導通が図られる。即ち、アーチ部21をプレス加工(打ち抜き加工)することで貫通箇所26,27が形成された場合、貫通箇所26,27の周縁部は、通常、鋭利なエッジ形状を有する。このため、上記の4つの箇所Pでは、この鋭利な周縁部が導体芯線3に食い込むように(例えば、導体芯線3の表面の酸化膜を破壊しながら)周縁部が導体芯線3に押し付けられることで、導通が図られる。 In the state shown in FIG. 2C, as shown in FIG. 3, at four points P where the conductor core wire 3 is caught on the peripheral edges of the two penetrating points 26 and 27, the peripheral edges of the penetrating points 26 and 27 and the conductor Conduction is achieved with the core wire 3. That is, when the through portions 26 and 27 are formed by pressing (punching) the arch portion 21, the peripheral portions of the through portions 26 and 27 usually have a sharp edge shape. Therefore, at the above four points P, the peripheral edge portion is pressed against the conductor core wire 3 so that the sharp peripheral edge portion bites into the conductor core wire 3 (for example, while destroying the oxide film on the surface of the conductor core wire 3). Then, continuity is achieved.

以上、本発明の実施形態に係る端子金具1によれば、従来の端子付き電線において電線との接続に用いられるバレル部ではなく、両持ち梁状の形状を有するアーチ部21を用いて、端子金具1と電線2との接続を行い得る。即ち、まず、アーチ部21が第1、第2部分22,23(基端部)に対して上向きに凸となる第1の梁形状を有する状態にて、アーチ部21に設けられる2つの貫通箇所26,27に、電線2の導体芯線3を挿通させる。次いで、アーチ部21が第1、第2部分22,23(基端部)に対して下向きに凸となる第2の梁形状を有する状態となるように、アーチ部21を導体芯線3とともに変形させる。これにより、導体芯線3が2つの貫通箇所26,27に引っ掛かるように係合され、導体芯線3がアーチ部21に保持される。ここで、アーチ部21の梁形状の切り替えは、アーチ部21の凸となる向きを切り替えるだけであるため、従来のような専用の装置などを用いることなく、作業者の手作業などで行うことが可能である。このように、貫通箇所26,27に導体芯線3を挿通させてアーチ部21の梁形状を切り替えるだけで、端子金具1と電線2とが接続されることになる。したがって、本構成の端子金具1は、電線2と端子金具1との電気的接続の信頼性と、電線2と端子金具1とを接続する作業性と、を両立可能である。 As described above, according to the terminal fitting 1 according to the embodiment of the present invention, the terminal is not a barrel portion used for connecting to the electric wire in the conventional electric wire with a terminal, but an arch portion 21 having a double-sided beam shape. The metal fitting 1 and the electric wire 2 can be connected. That is, first, two penetrations provided in the arch portion 21 in a state where the arch portion 21 has a first beam shape that is convex upward with respect to the first and second portions 22, 23 (base end portions). The conductor core wire 3 of the electric wire 2 is inserted into the portions 26 and 27. Next, the arch portion 21 is deformed together with the conductor core wire 3 so that the arch portion 21 has a second beam shape that is convex downward with respect to the first and second portions 22, 23 (base end portions). Let me. As a result, the conductor core wire 3 is engaged so as to be hooked on the two penetration points 26 and 27, and the conductor core wire 3 is held by the arch portion 21. Here, since the beam shape of the arch portion 21 is only switched by switching the convex direction of the arch portion 21, it is performed manually by an operator without using a dedicated device or the like as in the conventional case. Is possible. In this way, the terminal fitting 1 and the electric wire 2 are connected only by inserting the conductor core wire 3 through the penetrating portions 26 and 27 and switching the beam shape of the arch portion 21. Therefore, the terminal fitting 1 having this configuration can achieve both the reliability of the electrical connection between the electric wire 2 and the terminal fitting 1 and the workability of connecting the electric wire 2 and the terminal fitting 1.

また、必要に応じ、アーチ部21の梁形状を切り替え前の梁形状に戻すことで、端子金具1から導体芯線3を取り外すことも可能である。よって、本発明の実施形態に係る端子金具1によれば、従来の端子金具では困難であった端子金具1の付け直しや再利用なども可能となる。 Further, if necessary, the conductor core wire 3 can be removed from the terminal fitting 1 by returning the beam shape of the arch portion 21 to the beam shape before switching. Therefore, according to the terminal fitting 1 according to the embodiment of the present invention, it is possible to reattach or reuse the terminal fitting 1, which is difficult with the conventional terminal fitting.

更に、本発明の実施形態に係る端子金具1によれば、アーチ部21の梁形状の切り替え前の状態(第1の梁形状の状態)において、2つの貫通箇所26,27が一直線上に配置される。よって、例えば、上述したように端子金具1と電線2との接続を行う際、このように配置された2つの貫通箇所26,27に電線2の導体芯線3を容易に挿通できる。その結果、電線2と端子金具1とを接続する作業性を更に向上できる。 Further, according to the terminal fitting 1 according to the embodiment of the present invention, the two penetration points 26 and 27 are arranged in a straight line in the state before the beam shape of the arch portion 21 is switched (the state of the first beam shape). Will be done. Therefore, for example, when the terminal fitting 1 and the electric wire 2 are connected as described above, the conductor core wire 3 of the electric wire 2 can be easily inserted into the two penetrating points 26 and 27 arranged in this way. As a result, the workability of connecting the electric wire 2 and the terminal fitting 1 can be further improved.

更に、本発明の実施形態に係る端子金具1によれば、アーチ部21の梁形状の切り替えを行う際、第3部分24の湾曲部25が弾性的に変形することで、梁形状の切り替えを適正に行うことができる。また、第3部分24の湾曲部25の弾性係数を調整することで、例えば、アーチ部21の梁形状の切り替えの容易さと、アーチ部21による導体芯線3の保持力の大きさと、を任意に調整することも可能である。その結果、電線2と端子金具1との電気的接続の信頼性と、電線2と端子金具1とを接続する作業性と、を更に適正に両立できる。 Further, according to the terminal fitting 1 according to the embodiment of the present invention, when the beam shape of the arch portion 21 is switched, the curved portion 25 of the third portion 24 is elastically deformed to switch the beam shape. It can be done properly. Further, by adjusting the elastic modulus of the curved portion 25 of the third portion 24, for example, the ease of switching the beam shape of the arch portion 21 and the magnitude of the holding force of the conductor core wire 3 by the arch portion 21 can be arbitrarily adjusted. It is also possible to adjust. As a result, the reliability of the electrical connection between the electric wire 2 and the terminal fitting 1 and the workability of connecting the electric wire 2 and the terminal fitting 1 can be more appropriately compatible with each other.

なお、本発明は上記各実施形態に限定されることはなく、本発明の範囲内において種々の変形例を採用することができる。例えば、本発明は、上述した実施形態に限定されるものではなく、適宜、変形、改良、等が可能である。その他、上述した実施形態における各構成要素の材質、形状、寸法、数、配置箇所、等は本発明を達成できるものであれば任意であり、限定されない。 The present invention is not limited to each of the above embodiments, and various modifications can be adopted within the scope of the present invention. For example, the present invention is not limited to the above-described embodiment, and can be appropriately modified, improved, and the like. In addition, the material, shape, size, number, arrangement location, etc. of each component in the above-described embodiment are arbitrary and are not limited as long as the present invention can be achieved.

例えば、上記実施形態では、本発明の「アーチ部」として、曲線状の湾曲するアーチ部21が採用されている(図1等参照)。これに対し、図4(a)に示すように、本発明の「アーチ部」として、第1部分22から基端側に斜め上方に延びる第1平板部21aと、第2部分23から先端側に斜め上方に延びる第2平板部21bと、を備え、第1平板部21aと第2平板部21bとの延出端同士が連結されたアーチ部が採用されてもよい。この場合、第1平板部21aに貫通箇所26が形成され、第2平板部21bに貫通箇所27が形成されている。 For example, in the above embodiment, a curved arch portion 21 is adopted as the “arch portion” of the present invention (see FIG. 1 and the like). On the other hand, as shown in FIG. 4A, as the "arch portion" of the present invention, the first flat plate portion 21a extending diagonally upward from the first portion 22 to the proximal end side and the distal end side from the second portion 23. An arch portion is provided which includes a second flat plate portion 21b extending diagonally upward and the extending ends of the first flat plate portion 21a and the second flat plate portion 21b are connected to each other. In this case, the penetration portion 26 is formed in the first flat plate portion 21a, and the penetration portion 27 is formed in the second flat plate portion 21b.

同様に、図4(b)に示すように、本発明の「アーチ部」として、第1部分22から基端側に斜め上方に延びる第1平板部21aと、第2部分23から先端側に斜め上方に延びる第2平板部21bと、第1平板部21aと第2平板部21bとの延出端同士を連結するように軸方向に延びる第3平板部21cと、を備えるアーチ部が採用されてもよい。この場合、第1平板部21aに貫通箇所26が形成され、第2平板部21bに貫通箇所27が形成されている。 Similarly, as shown in FIG. 4B, as the "arch portion" of the present invention, the first flat plate portion 21a extending diagonally upward from the first portion 22 toward the proximal end side and the first flat plate portion 21a extending diagonally upward from the second portion 23 to the distal end side. An arch portion including a second flat plate portion 21b extending diagonally upward and a third flat plate portion 21c extending axially so as to connect the extending ends of the first flat plate portion 21a and the second flat plate portion 21b is adopted. May be done. In this case, the penetration portion 26 is formed in the first flat plate portion 21a, and the penetration portion 27 is formed in the second flat plate portion 21b.

更に、上記実施形態では、貫通箇所26,27として、アーチ部21の幅方向の中央に配置された円形の貫通孔が採用されている(図1等参照)。これに対し、本発明の「貫通箇所」は、導体芯線3を挿通させ得るようにアーチ部21を貫通する箇所であればよく、具体的な形態は特に制限されない。例えば、図5(a)に示すように、貫通箇所26,27として、アーチ部21の幅方向の中央に配置された四角形状の貫通孔が採用されてもよいし、図5(b)に示すように、貫通箇所26,27として、アーチ部21の幅方向の中央に配置された三角形状の貫通孔が採用されてもよい。更には、図5(c)に示すように、貫通箇所26,27として、アーチ部21の側縁から幅方向に向けて延びる切り欠きが採用されてもよい。また、アーチ部21に3ヶ所以上の貫通箇所が設けられてもよい。 Further, in the above embodiment, a circular through hole arranged at the center in the width direction of the arch portion 21 is adopted as the penetration points 26 and 27 (see FIG. 1 and the like). On the other hand, the "penetration portion" of the present invention may be a portion that penetrates the arch portion 21 so that the conductor core wire 3 can be inserted, and the specific form is not particularly limited. For example, as shown in FIG. 5 (a), a quadrangular through hole arranged in the center in the width direction of the arch portion 21 may be adopted as the penetration points 26 and 27, and FIG. 5 (b) shows. As shown, as the penetration points 26 and 27, a triangular through hole arranged at the center in the width direction of the arch portion 21 may be adopted. Further, as shown in FIG. 5C, notches extending in the width direction from the side edge of the arch portion 21 may be adopted as the penetration points 26 and 27. Further, the arch portion 21 may be provided with three or more penetration points.

更に、上記実施形態では、図2に示すように、アーチ部21は、導体芯線3との接続の際、図中上方に向けて凸となる梁形状(切り替え前の梁形状)から、図中下方に向けて凸となる梁形状(切り替え後の梁形状)に、梁形状が切り替えられている。これに対し、本発明のアーチ部21の「梁形状」は、導体芯線3を適正に保持可能なように切り替えられればよく、具体的な態様は特に制限されない。例えば、切り替え前の梁形状は、必ずしも図中上方に向けて凸となる梁形状である必要はなく、図中下方に向けて凸となる梁形状であってもよいし、紙面の手前側または奥側に向けて凸となる梁形状であってもよい。また、切り替え後の梁形状は、必ずしも切り替え前の梁形状と異なる向きに凸となる梁形状である必要はなく、切り替え前の梁形状と同じ向きに凸となる梁形状(即ち、同じ向きに凸であるが梁の撓みの度合いが異なる梁形状)であってもよいし、基端部22,23と面一となる梁形状(即ち、上方にも下方にも凸となっていない形状)であってもよい。 Further, in the above embodiment, as shown in FIG. 2, the arch portion 21 has a beam shape (beam shape before switching) that is convex upward in the figure when connected to the conductor core wire 3. The beam shape is switched to a beam shape that is convex downward (the beam shape after switching). On the other hand, the "beam shape" of the arch portion 21 of the present invention may be switched so as to appropriately hold the conductor core wire 3, and the specific embodiment is not particularly limited. For example, the beam shape before switching does not necessarily have to be a beam shape that is convex toward the upper side in the drawing, and may be a beam shape that is convex toward the lower side in the drawing, or is on the front side of the paper surface or. It may have a beam shape that is convex toward the back side. Further, the beam shape after switching does not necessarily have to be a beam shape that is convex in a direction different from the beam shape before switching, and is a beam shape that is convex in the same direction as the beam shape before switching (that is, in the same direction). It may be a beam shape that is convex but has a different degree of bending of the beam), or a beam shape that is flush with the base ends 22 and 23 (that is, a shape that is neither convex upward nor downward). It may be.

ここで、上述した本発明に係る端子金具1及び端子付き電線5の実施形態の特徴をそれぞれ以下[1]〜[5]に簡潔に纏めて列記する。
[1]
相手側端子が接続される端子接続部(10)と、電線(2)の導体芯線(3)が接続される電線接続部(20)と、を備える端子金具(1)であって、
前記電線接続部(20)は、
両持ち梁状の形状を有するアーチ部(21)と、前記アーチ部(21)を貫通するように設けられる少なくとも2つの貫通箇所(26,27)と、前記アーチ部(21)の両端を支持する基端部(22,23,24,25)と、を有し、
前記アーチ部(21)は、
当該アーチ部(21)が前記基端部(22,23,24,25)に対して所定向きに凸となる梁形状を有する状態から他の梁形状を有する状態へ、梁形状の切り替えが可能である、ように構成される、
端子金具(1)。
[2]
上記[1]に記載の端子金具(1)において、
前記アーチ部(21)は、
前記切り替えの前の梁形状において、前記少なくとも2つの前記貫通箇所(26,27)が一直線上に配置されるように、構成される、
端子金具(1)。
[3]
上記[1]又は上記[2]に記載の端子金具(1)において、
前記基端部は、
前記アーチ部(21)の一端を支持する第1部分(22)と、前記アーチ部(21)の他端を支持する第2部分(23)と、前記第1部分(22)と前記第2部分(23)とを弾性的に連結する第3部分(24,25)と、を有する、
端子金具(1)。
[4]
電線(2)と、前記電線(2)に取り付けられる上記[1]〜上記[3]の何れか一つに記載の端子金具(1)と、を備える端子付き電線(5)であって、
前記端子金具(1)は、
前記切り替えの後の梁形状を有し、
前記電線(2)の前記導体芯線(3)は、
前記少なくとも2つの前記貫通箇所(26,27)のうちの一の前記貫通箇所(27)を一方側から他方側へ通り抜けるとともに、他の前記貫通箇所(26)を前記他方側から前記一方側に通り抜ける状態にて、前記アーチ部(21)に保持される、
端子付き電線(5)。
[5]
上記[4]に記載の端子付き電線(5)であって、
前記少なくとも2つの前記貫通箇所(26,27)の周縁部と前記導体芯線(3)との接点を介し、前記アーチ部(21)と前記導体芯線(3)とが導通される、
端子付き電線(5)。
Here, the features of the above-described terminal fitting 1 and the electric wire with terminal 5 according to the present invention will be briefly summarized and listed below in [1] to [5], respectively.
[1]
A terminal fitting (1) including a terminal connection portion (10) to which the mating terminal is connected and an electric wire connection portion (20) to which the conductor core wire (3) of the electric wire (2) is connected.
The electric wire connection portion (20) is
Supports an arch portion (21) having a double-sided beam shape, at least two penetration points (26, 27) provided so as to penetrate the arch portion (21), and both ends of the arch portion (21). Has base ends (22, 23, 24, 25) and
The arch portion (21) is
The beam shape can be switched from a state in which the arch portion (21) has a beam shape that is convex in a predetermined direction with respect to the base end portion (22, 23, 24, 25) to a state in which the arch portion (21) has another beam shape. Is configured to be,
Terminal bracket (1).
[2]
In the terminal fitting (1) described in the above [1],
The arch portion (21) is
In the beam shape before the switching, the at least two penetration points (26, 27) are configured to be arranged in a straight line.
Terminal bracket (1).
[3]
In the terminal fitting (1) according to the above [1] or the above [2],
The base end portion
A first portion (22) that supports one end of the arch portion (21), a second portion (23) that supports the other end of the arch portion (21), the first portion (22), and the second portion. It has a third portion (24, 25) that elastically connects the portion (23).
Terminal bracket (1).
[4]
A terminal-equipped electric wire (5) comprising an electric wire (2) and the terminal fitting (1) according to any one of the above [1] to [3] attached to the electric wire (2).
The terminal fitting (1)
It has a beam shape after the switching
The conductor core wire (3) of the electric wire (2) is
One of the at least two penetration points (26, 27) passes through the penetration point (27) from one side to the other side, and the other penetration point (26) is moved from the other side to the one side. It is held by the arch portion (21) in a state of passing through.
Electric wire with terminal (5).
[5]
The electric wire (5) with a terminal according to the above [4].
The arch portion (21) and the conductor core wire (3) are conducted through the contact points between the peripheral portions of the at least two penetration points (26, 27) and the conductor core wire (3).
Electric wire with terminal (5).

1 端子金具
2 電線
3 導体芯線
5 端子付き電線
10 端子接続部
20 電線接続部
21 アーチ部
22 第1部分(基端部)
23 第2部分(基端部)
24 第3部分(基端部)
25 湾曲部(第3部分)
26 貫通箇所
27 貫通箇所
1 Terminal metal fittings 2 Electric wire 3 Conductor core wire 5 Electric wire with terminal 10 Terminal connection part 20 Electric wire connection part 21 Arch part 22 First part (base end part)
23 Second part (base end)
24 Third part (base end)
25 Curved part (3rd part)
26 Penetration point 27 Penetration point

Claims (5)

相手側端子が接続される端子接続部と、電線の導体芯線が接続される電線接続部と、を備える端子金具であって、
前記電線接続部は、
両持ち梁状の形状を有するアーチ部と、前記アーチ部を貫通するように設けられる少なくとも2つの貫通箇所と、前記アーチ部の両端を支持する基端部と、を有し、
前記アーチ部は、
当該アーチ部が前記基端部に対して所定向きに凸となる梁形状を有する状態から他の梁形状を有する状態へ、梁形状の切り替えが可能である、ように構成される、
端子金具。
A terminal fitting provided with a terminal connection portion to which the other end terminal is connected and an electric wire connection portion to which the conductor core wire of the electric wire is connected.
The electric wire connection portion is
It has an arch portion having a double-sided beam shape, at least two penetrating points provided so as to penetrate the arch portion, and a base end portion that supports both ends of the arch portion.
The arch part
The beam shape can be switched from a state in which the arch portion has a beam shape that is convex in a predetermined direction with respect to the base end portion to a state in which the arch portion has another beam shape.
Terminal bracket.
請求項1に記載の端子金具において、
前記アーチ部は、
前記切り替えの前の梁形状において、前記少なくとも2つの前記貫通箇所が一直線上に配置されるように、構成される、
端子金具。
In the terminal fitting according to claim 1,
The arch part
In the beam shape before the switching, the at least two penetration points are configured to be arranged in a straight line.
Terminal bracket.
請求項1又は請求項2に記載の端子金具において、
前記基端部は、
前記アーチ部の一端を支持する第1部分と、前記アーチ部の他端を支持する第2部分と、前記第1部分と前記第2部分とを弾性的に連結する第3部分と、を有する、
端子金具。
In the terminal fitting according to claim 1 or 2.
The base end portion
It has a first portion that supports one end of the arch portion, a second portion that supports the other end of the arch portion, and a third portion that elastically connects the first portion and the second portion. ,
Terminal bracket.
電線と、前記電線に取り付けられる請求項1〜請求項3の何れか一項に記載の端子金具と、を備える端子付き電線であって、
前記端子金具は、
前記切り替えの後の梁形状を有し、
前記電線の前記導体芯線は、
前記少なくとも2つの前記貫通箇所のうちの一の前記貫通箇所を一方側から他方側へ通り抜けるとともに、他の前記貫通箇所を前記他方側から前記一方側に通り抜ける状態にて、前記アーチ部に保持される、
端子付き電線。
An electric wire with a terminal comprising the electric wire and the terminal fitting according to any one of claims 1 to 3 attached to the electric wire.
The terminal fitting
It has a beam shape after the switching
The conductor core wire of the electric wire is
It is held by the arch portion in a state where it passes through the penetration point of one of the at least two penetration points from one side to the other side and passes through the other penetration point from the other side to the one side. Ru,
Electric wire with terminals.
請求項4に記載の端子付き電線であって、
前記少なくとも2つの前記貫通箇所の周縁部と前記導体芯線との接点を介し、前記アーチ部と前記導体芯線とが導通される、
端子付き電線。
The electric wire with a terminal according to claim 4.
The arch portion and the conductor core wire are conducted through the contact points between the peripheral edge portions of the at least two penetration portions and the conductor core wire.
Electric wire with terminals.
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JPS4878984U (en) * 1971-12-28 1973-09-28
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JPH09505938A (en) * 1994-09-23 1997-06-10 アルベルト アッケルマン ゲゼルシャフト ミット ベシュレンクテル ハフツング ウント コンパニー コマンディトゲゼルシャフト Connection terminal for electrical wiring
JP2005011685A (en) * 2003-06-19 2005-01-13 Sumitomo Wiring Syst Ltd Electric wire holder
JP2005123050A (en) * 2003-10-17 2005-05-12 Yazaki Corp Connection terminal for flat circuit body

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Publication number Priority date Publication date Assignee Title
JP4878984B2 (en) 2006-10-24 2012-02-15 ハリソン東芝ライティング株式会社 Discharge lamp and discharge lamp manufacturing method
JP5116882B2 (en) 2012-02-02 2013-01-09 キヤノン株式会社 Printing apparatus, printing apparatus control method, and program

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Publication number Priority date Publication date Assignee Title
JPS4878984U (en) * 1971-12-28 1973-09-28
JPS5116882U (en) * 1974-07-25 1976-02-06
JPH09505938A (en) * 1994-09-23 1997-06-10 アルベルト アッケルマン ゲゼルシャフト ミット ベシュレンクテル ハフツング ウント コンパニー コマンディトゲゼルシャフト Connection terminal for electrical wiring
JP2005011685A (en) * 2003-06-19 2005-01-13 Sumitomo Wiring Syst Ltd Electric wire holder
JP2005123050A (en) * 2003-10-17 2005-05-12 Yazaki Corp Connection terminal for flat circuit body

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