JP3590403B2

JP3590403B2 - Manufacturing method of connection terminal

Info

Publication number: JP3590403B2
Application number: JP2003032098A
Authority: JP
Inventors: 幸文町田; 道泰渡部; 佳克長谷川; 伸博木村
Original assignee: Union Machinery Co Ltd
Current assignee: Union Machinery Co Ltd
Priority date: 2003-02-10
Filing date: 2003-02-10
Publication date: 2004-11-17
Anticipated expiration: 2019-11-17
Also published as: JP2003203742A

Description

【０００１】
【産業上の利用分野】
本発明は、相手側の平刃状の挿込接続端子を、略山形状の可動接触片の頂部と筒状部の内壁の間に受け入れる接続端子の製造方法に関するものである。
【０００２】
【従来の技術】
従来のこの種の接続端子は、１枚の導電金属板から加工されることが多く、そこには相手側の挿込接続端子を受け入れる端子接続部が前方に設けられ、電線の芯線部を圧着するための芯線圧着部と、電線の被覆部を圧着するための被覆圧着部が後方に設けられ、更に端子接続部では筒状部の内部に可動接触片が設けられている。
【０００３】
図３は例えば従来の接続端子の展開図、図４は縦断面図であり、１枚の導電金属板が図３に示すように抜き加工或いはエンボシング加工され、その点線部が曲げ加工されて図４に示すような接続端子が形成されている。端子接続部１では、底板２と、この底板２の両側から立ち上げられた側板３、４と、一方の側板３から内方へ折曲された天板５と、他方の側板４から天板５上に折曲された押え板６とから筒状部７が形成されてる。また、筒状部７の内部には、天板５の後端に斜め後方に向けて抜き加工された可動接触片８が折り返されている。
【０００４】
可動接触片８は逆山形状に折曲されて接触部８ａが形成され、一端が天板５に連なる基部８ｂとされると共に、他端は天板５に摺動自在に接触する自由端８ｃとされている。この自由端８ｃは天板５の前端から下方へ向けて折曲されたストッパ９により摺動範囲が規制されている。そして、端子接続部１の後方には芯線圧着部１０としての圧着片１１、１２がＵ字状に立ち上げられ、続いて被覆圧着部１３としての圧着片１４、１５がＵ字状に立ち上げられている。
【０００５】
このように形成された端子接続部１の底板２と可動接触片８の間に、図示しない相手側の挿込接続端子が挿し込まれると、可動接触片８の接触部８ａが撓むと共に自由端８ｃが前方へ摺動し、基部８ｂの復元力により挿込接続端子が底板２と可動接触片８の間に圧接される。
【０００６】
【発明が解決しようとする課題】
しかしながら上述した従来例では、可動接触片８は天板５から折り返された状態にあるため、挿込接続端子が底板２と可動接触片８の間に挿し込まれた際に可動接触片８の基部８ｂに大きな応力が集中し、挿込接続端子の挿脱が繰り返された場合には、基部８ｂが疲労して可動接触片８の圧接力が低下したり、可動接触片８そのものが折損したりするという問題点がある。
【０００７】
また、可動接触片８は前方へ向けて折り返されているため、挿込接続端子の挿込方向と可動接触片８の自由端８ｃの摺動方向が反対になり、挿込接続端子を挿し込む作業者に対して、挿込接続端子が確実に挿し込まれたかどうかの感触を明確に与えることができないという問題点もある。
【０００８】
本発明の目的は、上述した問題点を解消し、挿込接続端子を容易かつ確実に受け入れると共に、受け入れた挿込接続端子を確実に保持し得る接続端子の製造方法を提供することにある。
【０００９】
【課題を解決するための手段】
上記目的を達成するための本発明に係る接続端子の製造方法は、１枚の導電金属板を打ち抜き折曲して形成し、前方に相手側挿込接続端子を受け入れる筒状部を設け、後方に電線を接続する圧着部を設け、底板とその両側の側板と一方の側板に連なる天板とにより前記筒状部を形成し、略山形状の可動接触片を前記筒状部の内部に備え、受け入れた相手側の挿込接続端子を前記可動接触片の頂部と前記底板の間で圧接する接続端子において、前記可動接触片は前記筒状部の一部から前記筒状部の長手方向に延在して打ち抜き、前記筒状部の成形時に前記可動接触片を前記筒状部内に入れるように折り返すと共に、前記可動接触片の前方に位置する自由端の両側に設けた抱持用突片を前記天板を抱くように折曲して前記可動接触片を前記天板に係止し、前記可動接触片の前記筒状部との連結部を切断し、前記可動接触片の頂部近傍を前記筒状部の側板に可動に支持すると共に、前記可動接触片の前後の自由端を前記天板に摺動自在に接触させたことを特徴とする。
【００１０】
【実施の形態】
本発明を図１、図２に図示の実施の形態に基づいて詳細に説明する。
図１は本発明の方法により製造した接続端子の縦断面図であり、弾性を有する１枚の導電金属板を抜き加工、曲げ加工、エンボシング加工、切断加工等を行い、相手側の挿込接続端子を受け入れるための端子接続部２１と、電線の芯線部を圧着するための芯線圧着部２２と、電線の被覆部を圧着するための被覆圧着部２３とを順次に形成されている。
【００１１】
端子接続部２１には、断面略方形状の筒状部３１と逆山形状の可動接触片３２が備えられている。筒状部３１では、底板３３の両側から側板３４、３５（側板３４は図示せず）が立ち上げられ、一方の側板３４から天板３６が内方に折曲され、他方の側板３５から押え板３７が天板３６の上面に折り重ねられている。底板３３には、外方に膨出する突起３３ａ及び突起３３ｂ及び内方に膨出する突起３３ｃが設けられ、天板３６には内方に膨出する規制突起３６ａが形成されている。そして、側板３４、３５には方形状の支持孔３８、３９（３８は図示せず）がそれぞれ穿設られている。
【００１２】
このように形成した筒状部３１の内部には、可動接触片３２が配置されている。この可動接触片３２の略中間部の両側縁には、外方に突出して支持孔３８、３９にそれぞれ遊嵌する翼部４０、４１（４０は図示せず）が設けられ、可動接触片３２の前端に抱持用突片４２、４３（４２は図示せず）が天板３６を抱くように折り返されている。このような可動接触片３２の前端の自由端３２ｂを包むように、前部ストッパ４４が天板３６の前端から折り返され、可動接触片３２の後端の自由端３２ｃの後方に、後部ストッパ４５が押え板３７から下方に折曲されている。
【００１３】
このように形成された端子接続部２１の後方には、芯線圧着部２２としての圧着片５１、５２（５１は図示せず）がＵ字状に立ち上げられ、更に被覆圧着部２３としての圧着片６１、６２（６１は図示せず）がＵ字状に立ち上げられている。
【００１４】
図２は上述した接続端子が展開した、つまり製作に際して抜き加工或いはエンボシング加工した導電金属板の展開図である。製作時には、端子接続部２１、芯線圧着部２２及び被覆圧着部２３を順次に連接して抜き加工する。端子接続部２１では、底板３３の両側縁に連なる側板３４、３５を設け、一方の側板３４の側縁に連なる天板３６を設け、更に他方の側板３５の側縁に連なる押え板３７を設ける。
【００１５】
また、底板３３には突起３３ａ及び突起３３ｃをエンボシング加工すると共に突起３３ｂの一部を抜き加工し、側板３４、３５に方形状の支持孔３８、３９をそれぞれ抜き加工すると共に、側板３５と押え板５７の連接部には固定孔３５ａを抜き加工し、更に天板３６には紙面に対して表側に膨出する規制突起３６ａをエンボシング加工する。
【００１６】
また、天板３６の後端縁に斜め外方向に連なる可動接触片３２を延在して形成する。この可動接触片３２の中間部の両側縁に支持孔３８、３９にそれぞれ遊嵌する翼部４０、４１を外側に向けて突設し、可動接触片３２の後端部の両側縁に抱持用突片４２、４３を外側に向けて設ける。ここで、支持孔３８、３９の幅は少なくとも翼部４０、４１を嵌入できるものとし、支持孔３８、３９の高さは翼部４０、４１を上下動可能とするものとしている。
【００１７】
更に、天板３６の前端縁に連なる前部ストッパ４４を形成し、押え板３７の後端縁に連なる後部ストッパ４５を形成し、更に天板３６の外側縁に連接して他方の側板３５の固定孔３５ａに嵌合する固定突片４６を設ける。そして、芯線圧着部２２には圧着片５１、５２を設け、被覆圧着部２３には圧着片６１、６２を設ける。
【００１８】
このように加工した導電金属板を、点線部において曲げ加工することにより、図１に示すような接続端子を形成する。即ち、可動接触片３２は翼部４０、４１を結ぶ線上で略山形状に折曲して接触部３２ａを形成した後に天板３６上に折り返し、側板３４、３５を底板３３から立ち上げると共に、折り返した可動接触片３２の翼部４０、４１を支持孔３８、３９にそれぞれ遊嵌する。そして、天板３６を内方に折曲すると共に、固定突片４６を側板３５の固定孔３５ａに嵌合し、更に押え板３７を天板３６上に折り返す。
【００１９】
次に、可動接触片３２の抱持用突片４２、４３を天板３６を抱くようにその上面に折曲し、その後に天板３６と可動接触片３２の連接部Ａを切断する。これにより、可動接触片３２には前端縁に自由端３２ｂを設け、後端縁に自由端３２ｃを設けることになる。このような自由端３２ｂの下面に前部ストッパ４４を折り返し、自由端３２ｃの後方に後部ストッパ４５を折り曲げる。そして、圧着片５１、５２及び圧着片６１、６２をそれぞれ略Ｕ字状に立ち上げて、芯線圧着部２２及び被覆圧着部２３を形成する。
【００２０】
このように構成した端子接続部２１の可動接触片３２と底板３３の間に、図示しない相手側の挿込接続端子が挿し込まれると、可動接触片３２の接触部３２ａが軽度に撓みながら上方に移動し、自由端３２ｂ及び自由端３２ｃがそれぞれ反対方向へ摺動する。同時に、可動接触片３２が復元して挿込接続端子を底板３３との間に圧接する。このとき、可動接触片３２の翼部４０、４１が支持孔３８、３９内を上下動すると共に、自由端３２ｂ及び自由端３２ｃはそれぞれの前部ストッパ４４及び後部ストッパ４５により移動範囲が規制される。
【００２１】
このように本実施の形態では、可動接触片３２の両端が自由端３２ｂ及び自由端３２ｃとされているため、可動接触片３２に集中する応力は軽度に撓む接触部３２ａに限られ、挿込接続端子の挿脱の繰り返しにより可動接触片３２の変形が繰り返されても、応力の集中は軽度であるために可動接触片３２の弾力劣化や破損を少なくすることができ、可動接触片３２の弾性力を安定して保持することができる。
【００２２】
また、可動接触片３２の自由端３２ｂ及び自由端３２ｃがそれぞれ天板３６に沿って摺動するため、挿込接続端子の挿し込みが容易になり、可動接触片３２の弾性力を安定して保持することができるため、挿込接続端子を確実に圧接することができる。
【００２３】
更に、挿込接続端子の挿し込みが容易になると共に、挿込接続端子を確実に圧接できるため、挿込接続端子を挿し込んだ際の明確な感触を作業者に対して与えることができる。
【００２４】
【発明の効果】
以上説明したように本発明に係る接続端子の製造方法は、筒状部の長手方向に延在した可動接触片の筒状部との連結部を切断すると共に、頂部付近を可動接触片を筒状部の側板に可動支持し、可動接触片の前方の自由端を抱持用突片により天板に係止すると共に可動接触片の前後の自由端を筒状部の天板に対して摺動自在に接触させるため、製作が容易であると共に、相手側の挿込接続端子が挿し込まれた際に可動接触片に大きな応力が集中することがなく、可動接触片の弾力劣化や破損を防止して、安定した弾性力を保持することができる。
【図面の簡単な説明】
【図１】本実施の形態の縦断面図である。
【図２】その展開図である。
【図３】従来例の展開図である。
【図４】縦断面図である。
【符号の説明】
２１端子接続部
３１筒状部
３２可動接触片
３３底板
３３ｂ、３３ｃ自由端
３４、３５側板
３６天板
３８、３９支持孔
４０、４１翼部
４２、４３抱持用突片
４４、４５ストッパ[0001]
[Industrial applications]
The present invention relates to a method of manufacturing a connection terminal for receiving a mating flat blade-shaped insertion connection terminal between the top of a substantially mountain-shaped movable contact piece and the inner wall of a cylindrical portion.
[0002]
[Prior art]
Conventional connection terminals of this type are often processed from a single conductive metal plate, in which a terminal connection portion for receiving a mating insertion connection terminal is provided at the front, and a core portion of an electric wire is crimped. A crimping portion for crimping the core wire and a crimping portion for crimping the covering portion of the electric wire are provided at the rear, and a movable contact piece is provided inside the tubular portion at the terminal connection portion.
[0003]
FIG. 3 is an exploded view of a conventional connection terminal, for example, and FIG. 4 is a longitudinal sectional view. One conductive metal plate is punched or embossed as shown in FIG. Connection terminals as shown in FIG. In the terminal connection portion 1, a bottom plate 2, side plates 3 and 4 raised from both sides of the bottom plate 2, a top plate 5 bent inward from one side plate 3, and a top plate A cylindrical portion 7 is formed from the presser plate 6 bent on the upper surface 5. Inside the cylindrical portion 7, a movable contact piece 8 which is punched diagonally rearward from the rear end of the top plate 5 is folded back.
[0004]
The movable contact piece 8 is bent into an inverted mountain shape to form a contact portion 8a. One end is a base 8b connected to the top plate 5, and the other end is a free end 8c slidably in contact with the top plate 5. It has been. The sliding range of the free end 8c is regulated by a stopper 9 bent downward from the front end of the top plate 5. Then, the crimping pieces 11, 12 as the core wire crimping section 10 are raised in a U-shape behind the terminal connection section 1, and then the crimping pieces 14, 15 as the covering crimping section 13 are raised in a U-shape. Have been.
[0005]
When the insertion connection terminal (not shown) is inserted between the bottom plate 2 of the terminal connecting portion 1 thus formed and the movable contact piece 8, the contact portion 8a of the movable contact piece 8 bends and is free. The end 8c slides forward, and the insertion connection terminal is pressed between the bottom plate 2 and the movable contact piece 8 by the restoring force of the base 8b.
[0006]
[Problems to be solved by the invention]
However, in the above-described conventional example, since the movable contact piece 8 is in a state of being folded back from the top plate 5, when the insertion connection terminal is inserted between the bottom plate 2 and the movable contact piece 8, the movable contact piece 8 If a large stress is concentrated on the base 8b and the insertion / removal of the insertion connection terminal is repeated, the base 8b becomes fatigued and the pressure contact force of the movable contact piece 8 decreases, or the movable contact piece 8 itself breaks. There is a problem that.
[0007]
In addition, since the movable contact piece 8 is folded forward, the insertion direction of the insertion connection terminal is opposite to the sliding direction of the free end 8c of the movable contact piece 8, and the insertion connection terminal is inserted. There is also a problem that the operator cannot clearly feel whether or not the insertion connection terminal is securely inserted.
[0008]
SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems and to provide a method of manufacturing a connection terminal that can easily and surely receive an insertion connection terminal and reliably hold the received insertion connection terminal.
[0009]
[Means for Solving the Problems]
In order to achieve the above object, a method for manufacturing a connection terminal according to the present invention is provided by punching and bending one conductive metal plate , providing a cylindrical portion for receiving a mating insertion connection terminal in the front, and A crimping portion for connecting an electric wire is provided, the tubular portion is formed by a bottom plate, a side plate on both sides thereof, and a top plate connected to one side plate, and a substantially mountain-shaped movable contact piece is provided inside the tubular portion. In a connection terminal that press-contacts a received insertion connection terminal of a mating side between a top portion of the movable contact piece and the bottom plate, the movable contact piece extends from a part of the tubular portion in a longitudinal direction of the tubular portion. Extending and punching, the movable contact piece is folded back so as to be inserted into the cylindrical part when the cylindrical part is formed, and holding projections provided on both sides of a free end located in front of the movable contact piece. Is bent to hold the top plate, and the movable contact piece is attached to the top plate. Sealed, wherein cutting the connecting portion between the cylindrical portion of the movable contact piece, the near the top of the movable contact piece while supporting the movable side plates of the tubular portion, the free end of the front and rear of the movable contact piece Is slidably contacted with the top plate.
[0010]
Embodiment
The present invention will be described in detail based on the embodiment shown in FIGS.
FIG. 1 is a longitudinal sectional view of a connection terminal manufactured by the method of the present invention. One connection metal plate having elasticity is subjected to punching, bending, embossing, cutting, and the like, and the mating insertion connection is performed. A terminal connecting portion 21 for receiving a terminal, a core wire crimping portion 22 for crimping a core portion of an electric wire, and a covering crimping portion 23 for crimping a covering portion of an electric wire are sequentially formed.
[0011]
The terminal connecting portion 21 is provided with a cylindrical portion 31 having a substantially square cross section and a movable contact piece 32 having an inverted mountain shape. In the tubular portion 31, side plates 34 and 35 (side plates 34 are not shown) are raised from both sides of the bottom plate 33, a top plate 36 is bent inward from one side plate 34, and a holding plate is pressed from the other side plate 35. A plate 37 is folded on the upper surface of the top plate 36. The bottom plate 33 is provided with protrusions 33a and 33b that bulge outward and a protrusion 33c that bulges inward, and the top plate 36 is formed with a regulating protrusion 36a that bulges inward. The side plates 34 and 35 are provided with rectangular support holes 38 and 39 (38 is not shown).
[0012]
A movable contact piece 32 is disposed inside the tubular portion 31 formed in this manner. Wing portions 40 and 41 (40 not shown) are provided on both side edges of the substantially middle portion of the movable contact piece 32 so as to protrude outward and loosely fit into the support holes 38 and 39, respectively. The holding projections 42 and 43 (42 are not shown) are folded back at the front end so as to hold the top plate 36. The front stopper 44 is folded back from the front end of the top plate 36 so as to wrap the free end 32b of the front end of the movable contact piece 32, and a rear stopper 45 is provided behind the free end 32c of the rear end of the movable contact piece 32. It is bent downward from the holding plate 37.
[0013]
Behind the terminal connecting portion 21 formed in this manner, crimping pieces 51 and 52 (51 not shown) as the core wire crimping portion 22 are raised in a U-shape, and further crimped as the covering crimping portion 23. Pieces 61 and 62 (61 not shown) are raised in a U-shape.
[0014]
FIG. 2 is an exploded view of the conductive metal plate in which the above-described connection terminals have been developed, that is, punched or embossed in manufacturing. At the time of manufacture, the terminal connecting portion 21, the core wire crimping portion 22, and the covering crimping portion 23 are sequentially connected and punched. In the terminal connecting portion 21, side plates 34 and 35 are provided on both sides of the bottom plate 33, a top plate 36 is provided on a side edge of one side plate 34, and a holding plate 37 is provided on a side edge of the other side plate 35. .
[0015]
Further, the bottom plate 33 is formed by embossing the projections 33a and 33c and by punching out a part of the projections 33b. The side plates 34 and 35 are also punched with rectangular support holes 38 and 39, respectively. A fixing hole 35a is punched out of the connecting portion of the plate 57, and a regulating protrusion 36a bulging to the front side with respect to the paper surface is embossed on the top plate 36.
[0016]
The movable contact piece 32 extending obliquely outward extends from the rear edge of the top plate 36. Wing portions 40 and 41 which loosely fit into the support holes 38 and 39 respectively protrude outwardly from both side edges of the intermediate portion of the movable contact piece 32, and are held on both side edges of the rear end of the movable contact piece 32. The protruding pieces 42 and 43 are provided outward. Here, the width of the support holes 38 and 39 is such that at least the wings 40 and 41 can be fitted therein, and the height of the support holes 38 and 39 is such that the wings 40 and 41 can be moved up and down.
[0017]
Further, a front stopper 44 connected to the front edge of the top plate 36 is formed, a rear stopper 45 connected to the rear edge of the holding plate 37, and further connected to the outer edge of the top plate 36 to form the other side plate 35. A fixing protrusion 46 is provided to fit into the fixing hole 35a. The core wire crimping section 22 is provided with crimping pieces 51 and 52, and the covering crimping section 23 is provided with crimping pieces 61 and 62.
[0018]
The connection terminal as shown in FIG. 1 is formed by bending the conductive metal plate thus processed at the dotted line portion. That is, the movable contact piece 32 is bent into a substantially mountain shape on a line connecting the wing portions 40 and 41 to form the contact portion 32a, and then is folded on the top plate 36, and the side plates 34 and 35 are raised from the bottom plate 33, The folded wing portions 40 and 41 of the movable contact piece 32 are loosely fitted into the support holes 38 and 39, respectively. Then, the top plate 36 is bent inward, the fixing protrusion 46 is fitted into the fixing hole 35 a of the side plate 35, and the holding plate 37 is folded back on the top plate 36.
[0019]
Next, the holding projections 42 and 43 of the movable contact piece 32 are bent to the upper surface so as to hold the top plate 36, and then the connecting portion A between the top plate 36 and the movable contact piece 32 is cut. As a result, the movable contact piece 32 has the free end 32b at the front end and the free end 32c at the rear end. The front stopper 44 is folded back on the lower surface of the free end 32b, and the rear stopper 45 is folded behind the free end 32c. Then, the crimping pieces 51 and 52 and the crimping pieces 61 and 62 are respectively raised in a substantially U shape to form the core wire crimping portion 22 and the covering crimping portion 23.
[0020]
When the mating insertion connection terminal (not shown) is inserted between the movable contact piece 32 and the bottom plate 33 of the terminal connection portion 21 configured as described above, the contact portion 32a of the movable contact piece 32 is slightly bent upward. , And the free end 32b and the free end 32c slide in opposite directions. At the same time, the movable contact piece 32 is restored and the insertion connection terminal is pressed against the bottom plate 33. At this time, the wing portions 40 and 41 of the movable contact piece 32 move up and down in the support holes 38 and 39, and the movement range of the free end 32b and the free end 32c is regulated by the front stopper 44 and the rear stopper 45, respectively. You.
[0021]
As described above, in the present embodiment, since both ends of the movable contact piece 32 are the free end 32b and the free end 32c, the stress concentrated on the movable contact piece 32 is limited to the contact portion 32a which is slightly bent, and Even if deformation of the movable contact piece 32 is repeated by repeated insertion and removal of the connection terminal, since the concentration of stress is light, deterioration of the elasticity and breakage of the movable contact piece 32 can be reduced, and the movable contact piece 32 can be reduced. Can be held stably.
[0022]
In addition, since the free end 32b and the free end 32c of the movable contact piece 32 slide along the top plate 36, respectively, the insertion of the insertion connection terminal becomes easy, and the elastic force of the movable contact piece 32 is stabilized. Since the insertion connection terminals can be held, the insertion connection terminals can be reliably pressed.
[0023]
Further, the insertion of the insertion connection terminal is facilitated, and the insertion connection terminal can be reliably press-contacted, so that a clear feeling can be given to the operator when the insertion connection terminal is inserted.
[0024]
【The invention's effect】
As described above, the method of manufacturing the connection terminal according to the present invention cuts the connecting portion of the movable contact piece extending in the longitudinal direction of the tubular portion with the tubular portion, and attaches the movable contact piece near the top to the tubular portion. The movable contact piece is movably supported on the side plate, the front free end of the movable contact piece is locked to the top plate by the holding projection, and the front and rear free ends of the movable contact piece are slid against the top plate of the tubular portion. Since the movable contact pieces are movably contacted, it is easy to manufacture, and no large stress is concentrated on the movable contact pieces when the mating insertion connection terminal is inserted. Thus, stable elastic force can be maintained.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view of the present embodiment.
FIG. 2 is an exploded view thereof.
FIG. 3 is a development view of a conventional example.
FIG. 4 is a longitudinal sectional view.
[Explanation of symbols]
21 Terminal connection part 31 Cylindrical part 32 Movable contact piece 33 Bottom plate 33b, 33c Free end 34, 35 Side plate 36 Top plate 38, 39 Support hole 40, 41 Wing part 42, 43 Holding protruding piece 44, 45 Stopper

Claims

One conductive metal plate is formed by punching and bending, a cylindrical portion for receiving a mating insertion connection terminal is provided at the front, a crimping portion for connecting an electric wire is provided at the rear, and a bottom plate and side plates on both sides thereof are provided. The cylindrical portion is formed by a top plate connected to the side plate of the above, a substantially mountain-shaped movable contact piece is provided inside the cylindrical portion, and a mating insertion connection terminal that has been received and a top portion of the movable contact piece are provided. In the connection terminal pressed between the bottom plates, the movable contact piece extends in a longitudinal direction of the tubular part from a part of the tubular part and is punched out, and the movable contact piece is formed when the tubular part is formed. Along with folding back so as to be inserted into the cylindrical portion , holding protrusions provided on both sides of a free end located in front of the movable contact piece are bent so as to hold the top plate, thereby moving the movable contact piece. It engaged with the top plate, cutting the connecting portion between the cylindrical portion of the movable contact piece, wherein Manufacturing a connection terminal characterized in that the vicinity of the top of the moving contact piece is movably supported by the side plate of the cylindrical portion, and the front and rear free ends of the movable contact piece are slidably contacted with the top plate. Method.

The method for manufacturing a connection terminal according to claim 1, wherein a stopper for regulating a sliding range of both free ends of the movable contact piece is bent from the cylindrical portion.