JP2010211988A - Connection terminal - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a connection terminal that achieves suppression of manufacturing costs by significantly reducing the material usage and is simply and quickly manufactured. <P>SOLUTION: The connection terminal includes a cylindrical body including a body 2, an insertion part 3, and a conducting-wire connecting part 4 respectively having different diameters. A first fitting recess 7 is formed at one end 2a of the body 2 while a second fitting recess 8 is formed at the other end 2b. An insertion hole 10 is formed on the side of one end 3a of the insertion part 3 while a first fitting protrusion 11 fitted into the first fitting recess 7 is formed at the other end 3b. A second fitting protrusion 13 fitted into the second fitting recess 8 is formed at one end 4a of the conducting-wire connecting part 4 while a connecting part 14 connected with an insulating-coating conducting-wire 17 is provided at the other end 4b. The first fitting protrusion 11 of the insertion part 3 is fitted into the first fitting recess 7 of the body 2. The second fitting protrusion 13 of the conducting-wire connecting part 4 is fitted into the second fitting recess 8. Consequently, the body 2, the insertion part 3, and the conducting-wire connecting part 4 are integrally formed. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、電気機器に設けられたジャックに差込接続する差込プラグの接続端子に関する。   The present invention relates to a connection terminal of a plug to be plugged into a jack provided in an electric device.

家電製品やＡＶ機器等の電気機器には、商用電源の電圧を供給するために電源コードを直接接続するか、ジャックを取付けて電源コード側に設けた差込プラグを差込接続するのが一般である。
この差込プラグの一例として、ジャック側に設けられた２本の差込ピンに対応して２本の接続端子を備え、これを絶縁材からなる成形ボディで被覆し、この成形ボディから絶縁被覆導線である電源コードを引き出すタイプが普及している。 For electric appliances such as home appliances and AV equipment, it is common to connect the power cord directly to supply the voltage of the commercial power supply, or connect the plug that is installed on the power cord side with the jack attached It is.
As an example of this insertion plug, two connection terminals corresponding to two insertion pins provided on the jack side are provided, and this is covered with a molded body made of an insulating material. A type in which a power cord, which is a conductive wire, is drawn out is widespread.

この差込プラグの接続端子２５は、図８に示すように、本体部２６、被差込部２７および導線接続部２８からなるもので、従来より、銅または銅合金のパイプの外周面を切削加工することによって製作していた。   As shown in FIG. 8, the connection terminal 25 of the plug is composed of a main body portion 26, a plugged portion 27, and a conductive wire connection portion 28. Conventionally, the outer peripheral surface of a copper or copper alloy pipe is cut. It was manufactured by processing.

即ち、銅パイプの略中央を切削して、２本のフランジ部２９，３０を有した本体部２６を形成する。また、銅パイプの一端側の外周を切削して本体部２６よりも小外径の被差込部２７を形成し、他端側の外周を切削して被差込部２７よりも小外径の導線接続部２８を形成する。そして、被差込部２７は、その貫通孔が前記差込ピンの差込孔３１とされ、先端側が差込口３１ａとなっている。さらに、この被差込部２７は、先端から本体部２６側に向けて切削し、４本のスリット溝３１ｂを形成することにより、差込ピンの挿脱が容易なようにしている。   That is, the main body portion 26 having the two flange portions 29 and 30 is formed by cutting substantially the center of the copper pipe. Further, the outer periphery on one end side of the copper pipe is cut to form a plugged portion 27 having a smaller outer diameter than the main body portion 26, and the outer periphery on the other end side is cut to have a smaller outer diameter than the plugged portion 27. Are formed. And as for the to-be-inserted part 27, the through-hole is made into the insertion hole 31 of the said insertion pin, and the front end side is the insertion port 31a. Further, the insertion portion 27 is cut from the tip toward the main body portion 26 side to form four slit grooves 31b, so that the insertion pin can be easily inserted and removed.

このように形成された接続端子２５は、前記ジャックの差込ピンが２本であると、この２本に対応した一対を並置し、合成樹脂等の絶縁樹脂材からなる図外の成形ボディにより全体を被覆する。この際、導線接続部２８の貫通孔３２に電源コードの心線を挿入して半田付け接続し、成形ボディの他端から電源コードが引き出す。また、成形ボディの一端には、前記各差込孔３１に向けた開口を形成しておく。   The connection terminal 25 formed in this way has two insertion pins of the jack, a pair corresponding to the two insertion pins are juxtaposed, and a molding body (not shown) made of an insulating resin material such as synthetic resin is used. Cover the whole. At this time, the core wire of the power cord is inserted into the through hole 32 of the conductive wire connecting portion 28 and soldered, and the power cord is pulled out from the other end of the molded body. Further, an opening toward each insertion hole 31 is formed at one end of the molded body.

これにより、接続端子２５が成形ボディにより覆われた差込プラグが構成される。この差込プラグは、成形ボディを把持して各被差込部２７の差込孔３１をジャック側の差込ピンに挿入すると、ジャックに差込プラグが差込接続される。これに伴い、交流電圧が電源コード、差込プラグおよびジャックを介して電気機器側に供給される。   Thus, an insertion plug in which the connection terminal 25 is covered with the molded body is configured. The insertion plug is inserted and connected to the jack when the insertion body 31 is inserted into the insertion pin on the jack side by holding the molded body. Along with this, an AC voltage is supplied to the electric equipment side via the power cord, the plug, and the jack.

ところで、この種の接続端子において、誘電体同軸共振器の接続端子が持つ問題点を解消することを目的とした誘電体同軸共振器の接続端子が提案されている（特許文献１参照）。この接続端子は、挿入部、フランジ部および外部接続部からなり、棒状の金属材で構成される。そして、前記挿入部の外周面に螺旋状の突起部を形成し、この挿入部には軸方向に分割するようにスリット溝を形成している。   By the way, in this type of connection terminal, a connection terminal of a dielectric coaxial resonator has been proposed for the purpose of solving the problems of the connection terminal of the dielectric coaxial resonator (see Patent Document 1). This connection terminal consists of an insertion part, a flange part, and an external connection part, and is comprised with a rod-shaped metal material. A spiral protrusion is formed on the outer peripheral surface of the insertion portion, and a slit groove is formed in the insertion portion so as to be divided in the axial direction.

この接続端子は、スリット溝により挿入部がバネ性を有するので、このバネ性により挿入部の外周面に形成された螺旋状の突起部が誘電体同軸共振器の内導体と直接接触し、安定で良好な導通性と機械的に安定な固定強度が得られる。これにより、誘電体同軸共振器との接続において、導電性接着剤等を使用せずに、内導体との良好な導通性を確保できるとともに、機械的な固定強度を向上することができる。   In this connection terminal, the insertion portion has a spring property due to the slit groove, so that the spiral projection formed on the outer peripheral surface of the insertion portion directly contacts the inner conductor of the dielectric coaxial resonator due to this spring property, and is stable. Good electrical conductivity and mechanically stable fixing strength can be obtained. Thereby, in connection with a dielectric coaxial resonator, favorable electrical conductivity with an inner conductor can be ensured without using a conductive adhesive or the like, and mechanical fixing strength can be improved.

また、容易に且つ高精度に組み立てることができると共に組立時間を短縮することを目的としたフェルール及び光コネクタが知られている（特許文献２参照）。この光コネクタのフェルールは、光ファイバの端部を保持するフェルール用筒状体と、このフェルール用筒状体の後端部に設けられて光ファイバ心線を保持する保持部と、この保持部を挿入可能な貫通孔を有すると共に外周面に光コネクタ用ハウジングとの位置決め用の溝を有するつば部材とを備えている。そして、保持部とつば部材とは溶接又は溶着により固定するようになっている。   There are also known ferrules and optical connectors that can be assembled easily and with high accuracy and that reduce the assembly time (see Patent Document 2). The ferrule of the optical connector includes a ferrule tubular body that holds an end portion of an optical fiber, a holding portion that is provided at a rear end portion of the ferrule tubular body and holds an optical fiber core, and the holding portion. And a collar member having a groove for positioning with the optical connector housing on the outer peripheral surface. And a holding | maintenance part and a collar member are fixed by welding or welding.

このように、保持部とつば部材とを溶接又は溶着により固定するので、つば部材の溝の位置とフェルール用筒状体に保持された偏波面の位置との調整を容易に行うことができる。また、溶接又は融着の強度が高いため、接合部の面積を小さくすることができ、つば部の面積の小さい小径のコネクタを実現することができるというものである。   Thus, since the holding part and the collar member are fixed by welding or welding, it is possible to easily adjust the position of the groove of the collar member and the position of the polarization plane held by the ferrule tubular body. In addition, since the strength of welding or fusion is high, the area of the joint can be reduced, and a small-diameter connector with a small area of the collar can be realized.

特開平７−１３５４０９号公報JP 7-135409 A 特開２００１−２７２５７５JP 2001-272575 A

しかしながら、上記従来の接続端子２５は、銅パイプを図８の２点鎖線３３に示す部分削り取る加工により製作する。このため、１本の銅パイプ当たり相当量の銅材料を廃棄しなければならないので多くの無駄が生じ、また、１本の銅パイプを切削加工するので長時間を要し製作効率が甚だ低いという問題も残されていた。   However, the above-described conventional connection terminal 25 is manufactured by partially scraping a copper pipe as shown by a two-dot chain line 33 in FIG. For this reason, since a considerable amount of copper material must be discarded per copper pipe, a lot of waste arises, and since one copper pipe is cut, it takes a long time and production efficiency is very low. Problems remained.

また、上記特許文献１の誘電体同軸共振器の接続端子は、挿入部の螺旋状突起および外部接続部のフランジ部を形成するには、１本の棒状金属材を外周から切削加工して成形するか、予め形成した螺旋状突起およびフランジ部を棒状金属材の外周面に固着することによって製作せざるを得ない。   In addition, the connection terminal of the dielectric coaxial resonator disclosed in Patent Document 1 is formed by cutting one rod-shaped metal material from the outer periphery in order to form the spiral protrusion of the insertion portion and the flange portion of the external connection portion. Alternatively, it must be manufactured by fixing the previously formed spiral protrusion and flange portion to the outer peripheral surface of the rod-shaped metal material.

例えば、棒状金属材を切削加工して螺旋状突起およびフランジ部を形成する場合は、これらを外周面に残すために除去する部分が無駄になるという欠点があった。また、螺旋状突起およびフランジ部を予め形成して棒状金属材に一体化する場合は、この棒状金属材を所要の外径に切削加工した後、その外周面に螺旋状突起とフランジ部とを挿入し、かつ接着固定しなければならず、作業工程が多くなることから、接続端子を簡易かつ迅速に製作できないという難点があった。   For example, when a rod-shaped metal material is cut to form a spiral protrusion and a flange portion, there is a disadvantage that a portion to be removed is wasted in order to leave them on the outer peripheral surface. When the spiral protrusion and the flange portion are formed in advance and integrated with the rod-shaped metal material, the rod-shaped metal material is cut to a required outer diameter, and then the spiral protrusion and the flange portion are formed on the outer peripheral surface. Since it must be inserted and bonded and fixed, and the number of work steps increases, there is a problem that the connection terminals cannot be manufactured easily and quickly.

また、上記特許文献２のフェルール及び光コネクタは、フェルールを筒状体、保持部及びつば部材により一体形成するが、これらは予め成形加工してから溶接又は溶着により相互を固定するので、上記特許文献１の接続端子と同じく作業工程が多くなり、フェルールさらには光コネクタを簡易かつ迅速に製作できないという欠点があった。   In addition, the ferrule and the optical connector of Patent Document 2 are integrally formed of a ferrule with a cylindrical body, a holding portion, and a collar member, and these are fixed to each other by welding or welding after being molded in advance. As with the connection terminal of Document 1, the number of work steps is increased, and there is a drawback that ferrules and optical connectors cannot be manufactured easily and quickly.

そこで、本発明は、上記課題に鑑みてなされたもので、材料使用量を大幅に低減して製作コストを抑制し得るとともに、簡易かつ迅速に製作できる接続端子を提供することを目的としている。   Therefore, the present invention has been made in view of the above problems, and an object of the present invention is to provide a connection terminal that can significantly reduce the amount of material used to suppress the manufacturing cost and can be manufactured easily and quickly.

請求項１に記載の接続端子は、筒状の本体部と、該本体部よりも小外径でこの一端から長さ方向へ延出し、ジャック側の差込ピンが挿入される差込孔を設けた被差込部と、前記本体部よりも小外径でこの他端から長さ方向へ延出し、絶縁被覆導線の導体部が接続される導線接続部、とを具備する導電材製の接続端子であって、前記本体部、被差込部および導線接続部が筒状体からなり、前記本体部の一端に第１嵌合凹部が形成される一方、他端に第２嵌合凹部が形成され、前記被差込部の一端側に前記差込孔が形成される一方、他端に前記第１嵌合凹部に嵌合する第１嵌合凸部が形成され、前記導線接続部の一端に前記第２嵌合凹部に嵌合する第２嵌合凸部が形成される一方、他端に前記絶縁被覆導線が接続される接続部が設けられ、前記本体部の第１嵌合凹部に前記被差込部の第１嵌合凸部が嵌合されるとともに、前記第２嵌合凹部に前記導線接続部の第２嵌合凸部が嵌合されて、前記本体部、前記被差込部および前記導線接続部が一体化されてなることを特徴としている。 Connection terminal according to claim 1 includes a cylindrical main body portion, extending from the one end a small outside diameter than the main body portion to the longitudinal direction, an insertion hole jack side of the insertion pin is inserted Made of a conductive material comprising: a plugged portion provided; and a conductor connecting portion to which the conductor portion of the insulated coated conductor is connected in a lengthwise direction from the other end with a smaller outer diameter than the main body portion. A connection terminal, wherein the main body portion, the inserted portion, and the conductor connection portion are formed of a cylindrical body, and a first fitting recess is formed at one end of the main body portion, and a second fitting recess is formed at the other end. The insertion hole is formed at one end side of the inserted portion, and the first fitting convex portion that fits into the first fitting concave portion is formed at the other end, and the wire connecting portion A second fitting convex portion that fits into the second fitting concave portion is formed at one end of the wire, and a connecting portion to which the insulating covering conductor is connected is provided at the other end, and the book The first fitting convex portion of the inserted portion is fitted into the first fitting concave portion of the portion, and the second fitting convex portion of the conductive wire connecting portion is fitted into the second fitting concave portion. The main body portion, the plugged portion, and the conductive wire connecting portion are integrated.

請求項２に記載の接続端子は、前記被差込部の第１嵌合凸部の先端面に凹部を設けるとともに、前記導線接続部の第２嵌合凸部の先端面に凹部を設け、前記本体部の第１嵌合凹部の内奥面に前記被差込部側の凹部に係合される凸部を突設する一方、第２嵌合凹部の内奥面に前記導線接続部側の凹部に係合される凸部を突設してなることを特徴としている。   The connection terminal according to claim 2, wherein a concave portion is provided on a distal end surface of the first fitting convex portion of the inserted portion, and a concave portion is provided on a distal end surface of the second fitting convex portion of the conductive wire connecting portion, On the inner back surface of the first fitting concave portion of the main body portion, a convex portion that is engaged with the concave portion on the inserted portion side is protruded, while on the inner connecting surface side of the second fitting concave portion. It is characterized by projecting a convex portion that is engaged with the concave portion.

請求項３に記載の接続端子は、前記被差込部の第１嵌合凸部の外周面に突起を設けるとともに、前記導線接続部の第２嵌合凸部の外周面に突起を設け、前記本体部の第１嵌合凹部の内周面に前記被差込部側の突起に係合される凹所を凹設する一方、前記第２嵌合凹部の内周面に前記導線接続部側の突起に係合される凹所を凹設してなることを特徴としている。 The connection terminal according to claim 3 is provided with a protrusion on the outer peripheral surface of the first fitting convex portion of the inserted portion, and a protrusion on the outer peripheral surface of the second fitting convex portion of the conductive wire connecting portion, While forming the recessed part engaged with the protrusion by the side of the said insertion part in the internal peripheral surface of the 1st fitting recessed part of the said main-body part, the said wire connection part is provided in the internal peripheral surface of the said 2nd fitting recessed part It is characterized in that a recess to be engaged with the protrusion on the side is provided.

請求項４に記載の接続端子は、前記被差込部の他端寄りの外周面に鍔部を形成し、前記導線接続部の一端寄りの外周に鍔部を形成したことを特徴としている。   The connection terminal according to claim 4 is characterized in that a flange portion is formed on the outer peripheral surface near the other end of the inserted portion, and a flange portion is formed on the outer periphery near the one end of the conducting wire connection portion.

請求項１に記載の接続端子によると、前記本体部の第１嵌合凹部に前記被差込部の第１嵌合凸部を嵌合するとともに、前記第２嵌合凹部に前記導線接続部の第２嵌合凸部を嵌合して前記本体部、前記被差込部および前記導線接続部からなる接続端子を形成するので、従来のように、１本の金属パイプあるいは棒状金属材を切削加工して本体部、被差込部および導線接続部を形成する必要がない。従って、切削による除去部分が生じないので、材料使用量を大幅に低減でき、製作コストを抑制することが可能になる。また、本体部に被差込部と導線接続部とを嵌合することにより、一体化された接続端子を形成し得るので、簡易かつ迅速に製作できる効果がある。   According to the connection terminal of Claim 1, while fitting the 1st fitting convex part of the said to-be-inserted part to the 1st fitting recessed part of the said main-body part, the said conducting wire connection part is set to the said 2nd fitting recessed part. Since the connection terminal which consists of the said main-body part, the said to-be-inserted part, and the said conducting wire connection part is formed by fitting the 2nd fitting convex part, conventionally, one metal pipe or rod-shaped metal material is used. It is not necessary to cut and form a main-body part, a to-be-inserted part, and a conducting wire connection part. Therefore, since the removed portion by cutting does not occur, the amount of material used can be greatly reduced, and the manufacturing cost can be suppressed. Further, since the integrated connection terminal can be formed by fitting the inserted portion and the conductive wire connecting portion to the main body portion, there is an effect that it can be manufactured easily and quickly.

請求項２に記載の接続端子によると、前記本体部、被差込部および導線接続部を嵌合するとき、前記本体部の第１嵌合凹部側の凸部に前記被差込部の第１嵌合凸部側の凹部が係合されるとともに、前記本体部の第２嵌合凹部側の凸部に前記導線接続部の第２嵌合凸部側の凹部が係合される。   According to the connection terminal according to claim 2, when the main body portion, the inserted portion, and the conductor connecting portion are fitted, the first insertion recess portion of the main body portion has a convex portion on the first fitting concave portion side. The concave portion on the first fitting convex portion side is engaged, and the concave portion on the second fitting convex portion side of the conductor connecting portion is engaged with the convex portion on the second fitting concave portion side of the main body portion.

これにより、前記本体部の各凸部と被差込部の凹部および導線接続部の凹部とが強固に係合されるので、固定状態にあるジャックの差込ピンに被差込部の差込孔を挿入しているとき、接続端子側に回転力や捻り力が加わった場合、この接続端子の歪みや変形が回避される。これによって、差込孔内の差込ピンが緩んだり、導線接続部と絶縁被覆導線との接続が緩むことなく、これらの電気的・機械的接続が適正に維持される利点がある。   Thereby, each convex part of the main body part and the concave part of the inserted part and the concave part of the conducting wire connecting part are firmly engaged, so that the inserted part is inserted into the jack insertion pin of the fixed state. When a hole is inserted, if a rotational force or a twisting force is applied to the connection terminal side, distortion or deformation of the connection terminal is avoided. As a result, there is an advantage that these electrical and mechanical connections are properly maintained without loosening the insertion pin in the insertion hole or loosening the connection between the conductor connecting portion and the insulating coated conductor.

請求項３に記載の接続端子によると、前記本体部、被差込部および導線接続部を嵌合するとき、前記本体部の第１嵌合凹部側の凹所に前記被差込部の第１嵌合凸部側の突起が係合されるとともに、前記本体部の第２嵌合凹部側の凹所に前記導線接続部の第２嵌合凸部側の突起が係合される。 According to the connection terminal of Claim 3, when fitting the said main-body part, a to-be-inserted part, and a conducting wire connection part, the 1st fitting recessed part side of the said main-body part WHEREIN: The said to-be-inserted part's 1st 1 with the fitting convex portion of the projection is engaged, the second fitting projection side of the projection of the wire connecting portion in the recess of the second fitting recess of the main body portion is Ru engaged.

これにより、前記本体部の各凹所と被差込部の突起および導線接続部の突起とが強固に係合されるので、固定状態にあるジャックの差込ピンに被差込部の差込孔を挿入しているときなどにおいて、被差込部及び絶縁被覆導線部側のいずれか或いは双方に強い引っ張り力が加わった場合においても、被差込部及び絶縁被覆導線部の本体部からの抜けが有効に防止され、この接続端子の変形が防止される。従って、差込孔から差込ピンが抜けてジャックと接続端子との差込接続が外れることがあっても、本体部、被差込部および導線接続部相互が緩んだり、外れることなく適正な形状に保たれる利点がある。   As a result, each recess of the main body is firmly engaged with the protrusion of the inserted portion and the protrusion of the conductor connecting portion, so that the inserted portion of the inserted portion is inserted into the jack insertion pin of the fixed state. Even when a strong tensile force is applied to either or both of the inserted part and the insulated coated conductor part when inserting a hole, the inserted part and the insulated coated conductor part from the main body part The disconnection is effectively prevented and the deformation of the connection terminal is prevented. Therefore, even if the insertion pin comes out of the insertion hole and the insertion connection between the jack and the connection terminal is disconnected, the main body, the inserted portion, and the conductor connection portion are not loosened or disconnected properly. There is an advantage of being kept in shape.

請求項４に記載の接続端子によると、前記被差込部の他端寄りの外周面に鍔部を形成し、前記導線接続部の一端寄りの外周に鍔部を形成したので、合成樹脂等の成形ボディによって覆われて差込プラグとなった場合には、この鍔部が引き抜き方向の力を阻止し、本体部から、被差込部および導線接続部が抜け出ることがない。   According to the connection terminal according to claim 4, since the flange portion is formed on the outer peripheral surface near the other end of the inserted portion, and the flange portion is formed on the outer periphery near the one end of the conducting wire connection portion, the synthetic resin or the like When the plug is covered with the molded body, the flange portion prevents the force in the pulling direction, and the inserted portion and the conductor connecting portion do not come out of the main body portion.

本発明の一実施形態である接続端子を示す展開側面図。The expanded side view which shows the connecting terminal which is one Embodiment of this invention. 接続端子の嵌合状態を示す側面図。The side view which shows the fitting state of a connection terminal. 接続端子の嵌合状態を示す縦断面図。The longitudinal cross-sectional view which shows the fitting state of a connection terminal. 接続端子を示す正面図。The front view which shows a connection terminal. 接続端子を示す背面図。The rear view which shows a connection terminal. ジャックと接続端子を示す側面図。The side view which shows a jack and a connection terminal. ジャックを示す正面図。The front view which shows a jack. 従来の接続端子を示す側面図。The side view which shows the conventional connection terminal.

以下、本発明における接続端子について、図面を参照しながら詳述する。
この実施形態においては、家電製品やＡＶ機器等の電気機器に取付けられたジャックに差込接続される差込プラグの接続端子について説明する。 Hereinafter, the connection terminal in the present invention will be described in detail with reference to the drawings.
In this embodiment, a connection terminal of a plug to be plugged and connected to a jack attached to an electric device such as a home appliance or an AV device will be described.

この接続端子１は、図１乃至図６に示すように、本体部２、被差込部３および導線接続部４からなり、２本１組が合成樹脂等からなる成形ボディ１６により被覆されて、絶縁被覆導線１７を引き出した差込プラグ１５を構成する。
この接続端子１は、外径および長さの異なる銅または銅の合金からなる金属パイプを用意し、それぞれをプレス成形機によりプレスして本体部２、被差込部３および導線接続部４を形成した後、本体部２に被差込部３と導線接続部４とを近接させた状態で、プレス機により相互を圧入嵌合し、一体的な接続端子１を製作する。 As shown in FIGS. 1 to 6, the connection terminal 1 includes a main body portion 2, a plugged portion 3, and a conductive wire connection portion 4, and one set of two is covered with a molded body 16 made of synthetic resin or the like. Then, the plug 15 is formed by drawing out the insulated conductor 17.
For this connection terminal 1, metal pipes made of copper or copper alloys having different outer diameters and lengths are prepared, and each of them is pressed by a press molding machine to connect the main body portion 2, the plugged portion 3 and the conductor connection portion 4 with each other. After the formation, with the inserted portion 3 and the conductive wire connecting portion 4 being brought close to the main body portion 2, they are press-fitted to each other by a press machine to manufacture the integral connection terminal 1.

即ち、本体部２は細長の略円筒状で、一端２ａ寄りおよび他端２ｂの外周面２ｃに２本のフランジ部５，６が形成されている。そして、前記本体部２の一端２ａに第１嵌合凹部７が形成される一方、他端２ｂに第２嵌合凹部８が形成されている。また、第１嵌合凹部７の内奥面７ａに、凸部７ｂを突設する一方、第２嵌合凹部８の内奥面８ａにも凸部８ｂを突設している。さらに、第１嵌合凹部７の内周面７ｃに凹所７ｄを形成する一方、第２嵌合凹部８の内周面８ｃにも凹所８ｄを形成している。   That is, the main body 2 is an elongated and substantially cylindrical shape, and two flange portions 5 and 6 are formed on the outer peripheral surface 2c near the one end 2a and the other end 2b. A first fitting recess 7 is formed at one end 2a of the main body 2, and a second fitting recess 8 is formed at the other end 2b. Further, a convex portion 7 b is projected from the inner back surface 7 a of the first fitting concave portion 7, while a convex portion 8 b is also projected from the inner rear surface 8 a of the second fitting concave portion 8. Further, a recess 7 d is formed on the inner peripheral surface 7 c of the first fitting recess 7, while a recess 8 d is also formed on the inner peripheral surface 8 c of the second fitting recess 8.

なお、この本体部２は、第１嵌合凹部７の開口部の内径を後述の鍔部９の外径よりも僅かに大きくして、被差込部３の第１嵌合凸部１１と第１嵌合凹部７とを嵌合するとき、鍔部９と開口部とが共に嵌合するようにしてもよい。また、第２嵌合凹部８の開口部の内径を後述の鍔部１２の外径よりも僅かに大きくして、導線接続部４の第２嵌合凸部１３と第２嵌合凹部８とを嵌合するとき、鍔部１２と開口部とが共に嵌合する構成としてもよい。これにより、本体部２、被差込部３および導線接続部４の嵌合をより強固にすることができる。   The main body 2 has an inner diameter of the opening of the first fitting recess 7 slightly larger than an outer diameter of a flange 9 described later, and the first fitting convex 11 of the inserted portion 3. When fitting the first fitting recess 7, the flange 9 and the opening may be fitted together. Moreover, the inner diameter of the opening part of the 2nd fitting recessed part 8 is made slightly larger than the outer diameter of the collar part 12 mentioned later, the 2nd fitting convex part 13 of the conducting wire connection part 4, and the 2nd fitting recessed part 8 When fitting, it is good also as a structure which the collar part 12 and an opening part fit together. Thereby, fitting of the main-body part 2, the to-be-inserted part 3, and the conducting wire connection part 4 can be strengthened more.

被差込部３は、前記本体部２よりも小径の円筒状で、他端３ｂ寄りの外周面３ｃに鍔部９を形成している。この被差込部３は、その貫通孔が図６に示すジャック２０側の差込ピン２２よりも内径が大きい差込孔１０となっている。また、この被差込部３は、差込孔１０の差込口１０ａ側から鍔部９側に向けて、被差込部３を軸方向に分割するように、４本のスリット溝１０ｂを形成している。   The inserted portion 3 has a cylindrical shape with a smaller diameter than the main body portion 2 and has a flange portion 9 formed on the outer peripheral surface 3c near the other end 3b. The inserted portion 3 has an insertion hole 10 whose through hole has a larger inner diameter than the insertion pin 22 on the jack 20 side shown in FIG. Further, the inserted portion 3 has four slit grooves 10b so as to divide the inserted portion 3 in the axial direction from the insertion port 10a side of the insertion hole 10 toward the flange portion 9 side. Forming.

さらに、被差込部３は、他端３ｂに前記本体部２の第１嵌合凹部７の内径よりも外径が略小径の第１嵌合凸部１１を形成している。そして、この第１嵌合凸部１１の先端面１１ａに、前記本体部２側の凸部７ｂが係合される凹部１１ｂを設けている。また、第１嵌合凸部１１の外周面１１ｃには、本体部２の凹所７ｄが係合される突起１１ｄを設けている。   Further, the inserted portion 3 has a first fitting convex portion 11 having an outer diameter substantially smaller than the inner diameter of the first fitting concave portion 7 of the main body portion 2 at the other end 3b. And the recessed surface 11b with which the convex part 7b by the side of the said main-body part 2 is engaged is provided in the front end surface 11a of this 1st fitting convex part 11. As shown in FIG. Further, the outer peripheral surface 11 c of the first fitting convex portion 11 is provided with a protrusion 11 d that engages with the recess 7 d of the main body portion 2.

導線接続部４は、前記被差込部３よりも小径の円筒状で、一端４ａ寄りの外周面４ｃに鍔部１２を形成している。この導線接続部４は、他端４ｂ側の貫通孔を接続孔１４とし、図６に示す如く絶縁被覆導線１７の心線である導体部１９，１９を挿入して半田付け接続するようになっている。また、この導線接続部４は、一端４ａに前記本体部側２の第２嵌合凹部８よりも外径が略小径の第２嵌合凸部１３を形成している。そして、この第２嵌合凸部１３の先端面１３ａに、本体部２の凸部８ｂが係合される凹部１３ｂを設けている。さらに、第２嵌合凸部１３の外周面１３ｃには、本体部２の凹所８ｄに係合される突起１３ｄを設けている。   The conducting wire connecting portion 4 has a cylindrical shape smaller in diameter than the inserted portion 3 and has a flange portion 12 formed on the outer peripheral surface 4c near the one end 4a. This conductor connecting portion 4 has a through hole on the other end 4b side as a connecting hole 14, and as shown in FIG. 6, conductors 19 and 19 which are core wires of the insulation coated conductor 17 are inserted and soldered and connected. ing. Moreover, this conducting wire connection part 4 forms the second fitting convex part 13 whose outer diameter is substantially smaller than the second fitting concave part 8 on the main body part side 2 at one end 4a. And the recessed part 13b with which the convex part 8b of the main-body part 2 is engaged is provided in the front end surface 13a of this 2nd fitting convex part 13. As shown in FIG. Further, a protrusion 13 d that is engaged with the recess 8 d of the main body 2 is provided on the outer peripheral surface 13 c of the second fitting protrusion 13.

ところで、このように成形加工された本体部２、被差込部３および導線接続部４は、プレス機により相互に圧入嵌合して一体化する。このときは、図２に示すように、本体部２の第１嵌合凹部７に被差込部３の第１嵌合凸部１１を圧入して嵌合する。また、第２嵌合凹部８に導線接続部４の第２嵌合凸部１３を圧入して嵌合する。この圧入嵌合時は、図３に示すように、本体部２の第１嵌合凹部７側の凸部７ｂに被差込部３の第１嵌合凸部１１側の凹部１１ｂが係合される。また、本体部２の第２嵌合凹部８側の凸部８ｂに導線接続部４の第２嵌合凸部１３側の１３ｂが係合される。よって、本体部２、被差込部３および導線接続部４相互の嵌合状態が一層強化される。   By the way, the main body part 2, the inserted part 3, and the conductor connecting part 4 thus molded are press-fitted and integrated with each other by a press machine. At this time, as shown in FIG. 2, the first fitting convex portion 11 of the inserted portion 3 is press-fitted and fitted into the first fitting concave portion 7 of the main body portion 2. Further, the second fitting convex portion 13 of the conductor connecting portion 4 is press-fitted and fitted into the second fitting concave portion 8. At the time of the press-fitting, as shown in FIG. 3, the concave portion 11 b on the first fitting convex portion 11 side of the inserted portion 3 is engaged with the convex portion 7 b on the first fitting concave portion 7 side of the main body 2. Is done. Further, 13 b on the second fitting convex portion 13 side of the conductor connecting portion 4 is engaged with the convex portion 8 b on the second fitting concave portion 8 side of the main body portion 2. Therefore, the fitting state among the main body 2, the inserted portion 3 and the conductor connecting portion 4 is further strengthened.

また、この圧入嵌合時には、本体部２の第１嵌合凹部７側の凹所７ｄに被差込部３の第１嵌合凸部１１側の突起１１ｄが係合される。さらに、本体部２の第２嵌合凹部８側の８ｄに導線接続部４の第２嵌合凸部１３側の突起１３ｄが係合される。よって、本体部２、被差込部３および導線接続部４相互の嵌合状態が一層強化される。これにより、図２〜図５に示す如く本体部２、被差込部３および導線接続部４が一体化された導電性を有する接続端子１が製作される。   Further, at the time of the press-fitting, the protrusion 11 d on the first fitting convex portion 11 side of the inserted portion 3 is engaged with the recess 7 d on the first fitting concave portion 7 side of the main body portion 2. Further, the protrusion 13 d on the second fitting convex portion 13 side of the conductor connecting portion 4 is engaged with 8 d on the second fitting concave portion 8 side of the main body 2. Therefore, the fitting state among the main body 2, the inserted part 3 and the conductor connecting part 4 is further strengthened. Thereby, as shown in FIGS. 2-5, the connection terminal 1 which has the electroconductivity with which the main-body part 2, the to-be-inserted part 3, and the conducting wire connection part 4 were integrated is manufactured.

この接続端子１は、図６および図７に示すジャック２０の差込ピン２２が２本であることから、この２本に対応した１対を並置し、合成樹脂絶縁材からなる成形ボディ１６により全体を被覆する。この際、成形ボディ１６は、一端１６ａに各差込孔１０の差込口１０ａに向けた開口１６ｃを形成し、また、各被差込部３の外周に空間１６ｄを設ける。   Since this connection terminal 1 has two insertion pins 22 of the jack 20 shown in FIGS. 6 and 7, a pair corresponding to these two is juxtaposed and formed by a molded body 16 made of a synthetic resin insulating material. Cover the whole. At this time, the molded body 16 is formed with an opening 16c toward the insertion port 10a of each insertion hole 10 at one end 16a, and a space 16d is provided on the outer periphery of each inserted portion 3.

さらに、図３に示す導線接続部４の各接続孔１４，１４に、図６に示すように絶縁被覆導線１７の２本のリード線１８，１８の各導体部１９，１９をそれぞれ接続しておき、成形ボディ１６の他端１６ｂから絶縁被覆導線１７が引き出されるように、２本の接続端子１の全体を前記絶縁材により被覆する。これにより、接続端子１が成形ボディ１６により覆われた差込プラグ１５が構成される。   Further, as shown in FIG. 6, the conductor portions 19 and 19 of the two lead wires 18 and 18 of the insulation coated conductor 17 are connected to the connection holes 14 and 14 of the conductor connection portion 4 shown in FIG. The whole of the two connection terminals 1 are covered with the insulating material so that the insulating covering conductor 17 is drawn from the other end 16 b of the molded body 16. Thereby, the plug 15 in which the connection terminal 1 is covered with the molded body 16 is configured.

なお、ジャック２０は、成形ボディ１６よりも若干外形の大きいジャック本体２１内に２本の差込ピン２２，２２を保持し、この差込ピン２２，２２およびジャック本体２１を電気機器２３側に取付けている。これにより、差込プラグ１５の成形ボディ１６を把持して、各被差込部３の差込口１０ａをジャック２０側の各差込ピン２２に合わせて差込孔１０内に挿入すると、ジャック２０に差込プラグ１５が差込接続される。   The jack 20 holds two insertion pins 22 and 22 in a jack main body 21 having a slightly larger outer shape than the molded body 16, and the insertion pins 22 and 22 and the jack main body 21 are placed on the electric device 23 side. It is installed. Accordingly, when the molded body 16 of the insertion plug 15 is gripped and the insertion port 10a of each inserted portion 3 is inserted into the insertion hole 10 in accordance with each insertion pin 22 on the jack 20 side, the jack An insertion plug 15 is plugged into 20.

この際、各被差込部３にスリット溝１０ｂを形成しているので、各被差込部３が若干拡大することから、差込ピン２２の挿入が容易である。このとき、各被差込部３が拡大しても、各被差込部３の外周に空間１６ｄを設けているので、挿入に支障が生じることはない。このように、ジャック２０に差込プラグ１５が差込まれると、電気的・機械的に両者が接続され、交流電圧がリード線１８，１８、接続端子１およびジャック２０を介して電気機器２３側に供給される。   At this time, since the slit groove 10 b is formed in each inserted portion 3, each inserted portion 3 is slightly enlarged, so that the insertion pin 22 can be easily inserted. At this time, even if each inserted portion 3 is enlarged, the space 16d is provided on the outer periphery of each inserted portion 3, so that insertion is not hindered. As described above, when the plug 15 is inserted into the jack 20, both are electrically and mechanically connected, and the AC voltage is connected to the electrical equipment 23 side via the lead wires 18, 18, the connection terminal 1 and the jack 20. To be supplied.

この後、差込プラグ１５や絶縁被覆導線１７に外力が加わっても、接続端子１に支障が生じることなく保護される。例えば、差込プラグ１５をジャック２０から抜くとき、また、絶縁被覆導線１７を何かで引っかけたような場合、成形ボディ１６側に回転力や捻り力が加わることがある。   Thereafter, even if an external force is applied to the plug 15 or the insulation coated conductor 17, the connection terminal 1 is protected without any trouble. For example, when the plug 15 is pulled out from the jack 20 or when the insulation-coated conductor 17 is caught by something, a rotational force or a twisting force may be applied to the molded body 16 side.

しかし、被差込部３の差込孔にジャック２０側の差込ピン２２が挿入された状態で回転力や捻り力が加わっても、各凹部１１ｂ，１３ｂと各凸部７ｂ，８ｂとが強固に係合されているので、接続端子１の歪みや変形が防止される。よって、差込孔１０内の差込ピン２２との接続が緩んだり、導線接続部４とリード線１８との接続が緩むことは殆どないので、これらの電気的・機械的接続が適正な状態に維持される。   However, even if rotational force or twisting force is applied in a state where the insertion pin 22 on the jack 20 side is inserted into the insertion hole of the inserted portion 3, the concave portions 11b and 13b and the convex portions 7b and 8b Since it is firmly engaged, distortion and deformation of the connection terminal 1 are prevented. Therefore, since the connection with the insertion pin 22 in the insertion hole 10 is not loosened, and the connection between the lead wire connecting portion 4 and the lead wire 18 is hardly loosened, these electrical and mechanical connections are in an appropriate state. Maintained.

また、ジャック２０に差込プラグ１５が差込接続されているとき、絶縁被覆導線１７を強く引いた場合などには、成形ボディ１６側には強い引っ張り力が加わる。しかし、各凹所７ｄ，８ｄと各突起１１ｄ，１３ｄとが強固に係合されているので、接続端子１の変形が防止され、差込孔１０から差込ピン２２が抜けてジャック２０と差込プラグ１５との差込接続が外れることがあっても、接続端子１の本体部２、被差込部３および導線接続部４相互が緩んだり、外れることなく保持される。この効果は、前記被差込部３の他端寄りの外周面に鍔部９を形成し、前記導線接続部４の一端寄りの外周に鍔部１２を形成しておくと、より一層向上する。   In addition, when the plug 15 is plugged into the jack 20, a strong pulling force is applied to the molded body 16 side when the insulation coated conductor 17 is pulled strongly. However, since the recesses 7d and 8d and the protrusions 11d and 13d are firmly engaged, the connection terminal 1 is prevented from being deformed, and the insertion pin 22 is removed from the insertion hole 10 to be connected to the jack 20. Even if the plug-in connection with the plug-in plug 15 is disconnected, the main body 2, the plug-in unit 3, and the conductor connection unit 4 of the connection terminal 1 are held without being loosened or disconnected. This effect is further improved by forming the flange 9 on the outer peripheral surface near the other end of the plugged portion 3 and forming the flange 12 on the outer periphery near the one end of the conductive wire connecting portion 4. .

加えて、本体部２の外周面に２本のフランジ部５，６が形成されているので、前述のように引っ張り力が加わっても、成形ボディ１６から２本の接続端子１が抜けるのが防止される。従って、この接続端子１を備えた差込プラグ１５は、安全性の高い状態で使用することができる。   In addition, since the two flange portions 5 and 6 are formed on the outer peripheral surface of the main body portion 2, the two connection terminals 1 can be removed from the molded body 16 even if a tensile force is applied as described above. Is prevented. Therefore, the plug 15 provided with the connection terminal 1 can be used in a highly safe state.

また、接続端子１は、従来のように、１本の金属パイプや丸棒金属材を切削加工して本体部、被差込部および導線接続部を成形しないことから、切削による除去部分が生じないので無駄が生じず材料使用量を大幅に低減できる。本例では、１本の接続端子１当たり、約１／２の材料を節約することが可能となった。   In addition, since the connection terminal 1 does not form a main body portion, a plugged portion, and a conductive wire connection portion by cutting a single metal pipe or a round bar metal material as in the prior art, a portion to be removed by cutting occurs. Since there is no waste, the amount of material used can be greatly reduced. In this example, it is possible to save about 1/2 of the material per connection terminal.

また、本体部２に被差込部３と導線接続部４とを圧入嵌合することにより、一体化された接続端子１を形成し得るので、簡易かつ迅速に製作できる。本例では、１本の接続端子１当たり、約１／２の時間で製作することが可能となった。
なお、本実施の形態で示した接続端子１は、本発明の一態様に過ぎず、本発明の要旨を逸脱しない範囲内で適宜設計変更できることは勿論である。 Moreover, since the integrated connection terminal 1 can be formed by press-fitting the inserted portion 3 and the conductor connecting portion 4 to the main body portion 2, it can be manufactured easily and quickly. In this example, it is possible to manufacture in about ½ time per one connection terminal.
Note that the connection terminal 1 shown in the present embodiment is only one aspect of the present invention, and it is needless to say that the design can be changed as appropriate without departing from the gist of the present invention.

本発明に係る接続端子は、成形ボディから露出した刃をコンセントに差込接続する普及型の差込プラグや、前記ジャック側にも絶縁被覆導線が直接接続されて相互に差込接続するコネクタタイプにも好適に用いることができる。   The connection terminal according to the present invention is a popular insertion plug that plugs and connects the blade exposed from the molded body to an outlet, or a connector type in which an insulation-coated conductor is directly connected to the jack side and plugged into each other. Also, it can be suitably used.

１ 接続端子
２ 本体部
２ａ 一端
２ｂ 他端
３ 被差込部
３ａ 一端
３ｂ 他端
４ 導線接続部
４ａ 一端
４ｂ 他端
７ 第１嵌合凹部
８ 第２嵌合凹部
１０ 差込孔
１１ 第１嵌合凸部
１３ 第２嵌合凸部
１４ 接続部 DESCRIPTION OF SYMBOLS 1 Connection terminal 2 Main-body part 2a One end 2b Other end 3 Insertion part 3a One end 3b Other end 4 Conductor connection part 4a One end 4b Other end 7 1st fitting recessed part 8 2nd fitting recessed part 10 Insertion hole 11 1st fitting Joint convex portion 13 Second fitting convex portion 14 Connection portion

Claims (4)

筒状の本体部と、この本体部よりも小外径でこの一端から長さ方向へ延出し、ジャック側の差込ピンが挿入される差込孔を設けた被差込部と、前記本体部よりも小外径でこの他端から長さ方向へ延出し、絶縁被覆導線の導体部が接続される導線接続部、とを具備する導電材製の接続端子であって、前記本体部、被差込部および導線接続部が筒状体からなり、前記本体部の一端に第１嵌合凹部が形成される一方、他端に第２嵌合凹部が形成され、前記被差込部の一端側に前記差込孔が形成される一方、他端に前記第１嵌合凹部に嵌合する第１嵌合凸部が形成され、前記導線接続部の一端に前記第２嵌合凹部に嵌合する第２嵌合凸部が形成される一方、他端に前記絶縁被覆導線が接続される接続部が設けられ、前記本体部の第１嵌合凹部に前記被差込部の第１嵌合凸部が嵌合されるとともに、前記第２嵌合凹部に前記導線接続部の第２嵌合凸部が嵌合されて、前記本体部、前記被差込部および前記導線接続部が一体化されてなることを特徴とする接続端子。   A cylindrical main body portion, a to-be-inserted portion having a smaller outer diameter than the main body portion, extending in a length direction from one end thereof, and having an insertion hole into which a jack-side insertion pin is inserted; and the main body A conductive wire connecting terminal that extends in a length direction from the other end with a smaller outer diameter than the portion, and is connected to a conductor portion of an insulation coated conductive wire, and the main body portion, The inserted portion and the conductive wire connecting portion are formed of a cylindrical body, the first fitting recess is formed at one end of the main body portion, and the second fitting recess is formed at the other end of the inserted portion. The insertion hole is formed on one end side, a first fitting convex portion is formed on the other end, and the second fitting concave portion is formed on one end of the conductor connecting portion. A second fitting convex portion to be fitted is formed, and a connecting portion to which the insulation coated conductor is connected is provided at the other end, and the first fitting concave portion of the main body portion is provided with the covered portion. The first fitting convex portion of the insertion portion is fitted, and the second fitting convex portion of the conductive wire connecting portion is fitted to the second fitting concave portion, and the main body portion, the inserted portion, and The connection terminal, wherein the conductive wire connection part is integrated. 前記被差込部の第１嵌合凸部の先端面に凹部を設けるとともに、前記導線接続部の第２嵌合凸部の先端面に凹部を設け、前記本体部の第１嵌合凹部の内奥面に前記被差込部側の凹部に係合される凸部を突設する一方、第２嵌合凹部の内奥面に前記導線接続部側の凹部に係合される凸部を突設してなることを特徴とする請求項１に記載の接続端子。   While providing a recessed part in the front end surface of the 1st fitting convex part of the said insertion part, providing a recessed part in the front end surface of the 2nd fitting convex part of the said conducting-wire connection part, the 1st fitting recessed part of the said main-body part A convex portion that is engaged with the concave portion on the inserted portion side is projected on the inner back surface, while a convex portion that is engaged with the concave portion on the conductor connecting portion side is formed on the inner rear surface of the second fitting concave portion. The connection terminal according to claim 1, wherein the connection terminal is provided in a protruding manner. 前記被差込部の第１嵌合凸部の外周面に突起を設けるとともに、前記導線接続部の第２嵌合凸部の外周面に突起を設け、前記本体部の第１嵌合凹部の内周面に前記被差込部側の突起に係合される凹所を凹設する一方、前記第２嵌合凹部の内周面に前記導線接続部側の突起に係合される凹所を凹設してなることを特徴とする請求項１又は請求項２に記載の接続端子。   A protrusion is provided on the outer peripheral surface of the first fitting convex portion of the inserted portion, and a protrusion is provided on the outer peripheral surface of the second fitting convex portion of the conductive wire connecting portion, and the first fitting concave portion of the main body portion is provided. A recess that engages with the protrusion on the inserted portion side is provided in the inner peripheral surface, while a recess that engages with the protrusion on the conductor connecting portion side on the inner peripheral surface of the second fitting recess. The connection terminal according to claim 1, wherein the connection terminal is recessed. 前記被差込部の他端寄りの外周面に鍔部を形成し、前記導線接続部の一端寄りの外周に鍔部を形成したことを特徴とする請求項１乃至３のいずれかに記載の接続端子。   The hook part is formed in the outer peripheral surface near the other end of the inserted part, and the hook part is formed on the outer periphery near the one end of the conducting wire connecting part. Connecting terminal.

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