JPS6224912B2 - - Google Patents

Description

【発明の詳細な説明】 本発明は配線器具における端子ねじを用いない
端子装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a terminal device for wiring equipment that does not use terminal screws.

従来の端子ねじを用いない端子装置は特開昭51
−100294号公報にみられるように、断面コ字状の
端子板内に両端を上向きに錠ばねを挿入し、錠ば
ねの一端を端子板の上側片に設けた切欠部を通し
て解錠レバーで押圧して電線を端子板の上側片と
錠ばねの両端との間に挿通した後解錠レバーの押
圧を除くことにより電線を端子板の上側片と錠ば
ねの両端との間に挾持するようになつている。し
かして、錠ばねの一端が鎖錠片となり他端が押圧
片となつているので、電線の鎖錠は錠ばねの一端
のみでなされるので鎖錠力が弱く、しかも電線の
挿入時に端子板の上側片と錠ばねの他端の押圧片
との間に無理に挿入しなければならず電線の挿入
に力を要する。又解錠レバーは端子板の水平な上
側片より高く突出しているので端子装置を薄い平
型とすることは困難である。又解錠レバーは回転
カムとなつており鎖錠片はカム面をカム軸方向に
押圧しているので解錠レバーの押圧を除いても鎖
錠片が復帰しないことがあり鎖錠が不完完全とな
つたり鎖錠力が不十分で振動により電線が緩むこ
とがある。又端子板の上側片とケース内壁間に隙
間があるので挿入した電線がこの隙間に入り上側
片と電線との接触が不完全になる等の欠点があ
る。 A terminal device that does not use conventional terminal screws is published in Japanese Patent Application Laid-open No. 1973.
- As seen in Publication No. 100294, a locking spring is inserted into a terminal board with a U-shaped cross section with both ends facing upward, and one end of the locking spring is passed through a notch provided in the upper piece of the terminal board and pressed with an unlocking lever. After inserting the electric wire between the upper part of the terminal board and both ends of the lock spring, the electric wire is held between the upper part of the terminal board and both ends of the lock spring by removing the pressure on the unlocking lever. It's summery. However, since one end of the lock spring is a locking piece and the other end is a pressing piece, the locking force of the electric wire is weak because only one end of the lock spring is used, and moreover, when the electric wire is inserted, the terminal block The wire must be forcefully inserted between the upper piece of the lock spring and the pressing piece at the other end of the lock spring, requiring force to insert the wire. Furthermore, since the unlocking lever protrudes higher than the horizontal upper piece of the terminal board, it is difficult to make the terminal device thin and flat. Also, the unlocking lever is a rotating cam, and the locking piece presses the cam surface in the direction of the cam shaft, so even if the pressure on the unlocking lever is removed, the locking piece may not return, resulting in incomplete locking. If the locking force is not complete or the locking force is insufficient, the wires may come loose due to vibration. Further, since there is a gap between the upper piece of the terminal plate and the inner wall of the case, there is a drawback that the inserted electric wire enters this gap and the contact between the upper piece and the electric wire becomes incomplete.

本発明はかかる従来装置の欠点に鑑みてなされ
たものであつて、その目的とするところはレバー
の操作が軽くでき、電線の挿入が容易でかつ鎖錠
及び電線との接解が確実で、しかも薄い平型に作
ることのできる端子装置を提供することにある。 The present invention has been made in view of the drawbacks of the conventional devices, and its purpose is to enable easy lever operation, easy insertion of electric wires, and secure locking and connection with electric wires. Moreover, it is an object of the present invention to provide a terminal device that can be made into a thin flat shape.

上記目的を達成するため本発明の端子装置は上
側片が前方に向つて下に傾斜した断面コ字状の端
子板と、この端子板の側面部に基部が接して設け
られた栓刃と、前記端子板内に両端を上向きに挿
入された錠ばねと、前記端子板の上側片の側縁が
係合する上側片の厚みより十分大きな巾を有する
溝と前記錠ばねの両端の電線挿入側面に夫々当接
する一対の突起及び前記錠ばねの基部の電線挿入
側の折曲部内側に位置する支点軸とを有するレバ
ーを備えていることを特徴としている。 In order to achieve the above object, the terminal device of the present invention includes a terminal plate having a U-shaped cross section with an upper piece slanting downward toward the front, and a plug blade provided with a base in contact with a side surface of the terminal plate. A locking spring inserted with both ends facing upward into the terminal board, a groove having a width sufficiently larger than the thickness of the upper piece with which the side edge of the upper piece of the terminal plate engages, and a wire insertion side surface at both ends of the locking spring. The present invention is characterized in that it includes a lever having a pair of protrusions that abut, respectively, and a fulcrum shaft located inside the bent portion on the wire insertion side of the base of the lock spring.

以下、図面によつて本発明の一実施例を説明す
る。 Hereinafter, one embodiment of the present invention will be described with reference to the drawings.

第１図は本発明端子装置の要部を分解した斜視
図であつて、１は栓刃、２は断面コ字状に折曲形
成された端子板、３は端子板２の前方に向つて下
に傾斜した下面が電線接触面となる上側片、４は
栓刃１の基部に形成されたダボ、５は端子板の側
面部に形成された前記ダボ４の係合する穴、６は
両端が上方に折曲してなる錠ばね、７はレバーで
あつて、８はその支点軸、９は操作部、１０は錠
ばね押え用の一対の突起、１１は上側片３の側縁
が係合する上側片３の厚みより十分大きな巾を有
する溝である。 FIG. 1 is an exploded perspective view of the main parts of the terminal device of the present invention, in which 1 is a plug blade, 2 is a terminal plate bent into a U-shaped cross section, and 3 is a front view of the terminal plate 2. 4 is a dowel formed at the base of the plug blade 1; 5 is a hole formed in the side surface of the terminal board into which the dowel 4 engages; 6 is both ends. is bent upward, 7 is a lever, 8 is its fulcrum shaft, 9 is an operating part, 10 is a pair of projections for holding down the lock spring, 11 is a lever on which the side edge of the upper piece 3 engages. The groove has a width sufficiently larger than the thickness of the upper piece 3 to be fitted.

これら部品は第２図、第３図に示すように組立
てられる。即ち、コ字状端子板内に錠ばねを両端
を上向きにして挿入し、次いでレバー７を、溝１
１を端子板２の上側片３の側縁に係合すると共に
一対の突起１０を錠ばね６の両端の電線挿入側面
に夫々当接し、支点軸８を錠ばね６の基部の電線
挿入側の折曲部内側に位置せしめて支点軸８を中
心に回動可能に設ける。そして栓刃１のダボ４を
端子板２の側面部に栓刃１の基部が接するように
設ける。なお、１２は本体、１３は電線挿入用切
欠、１４は電線挿入確認用穴である。 These parts are assembled as shown in FIGS. 2 and 3. That is, insert the lock spring into the U-shaped terminal plate with both ends facing upward, and then insert the lever 7 into the groove 1.
1 is engaged with the side edge of the upper piece 3 of the terminal plate 2, and the pair of protrusions 10 are brought into contact with the wire insertion sides of both ends of the lock spring 6, respectively, and the fulcrum shaft 8 is engaged with the wire insertion side of the base of the lock spring 6. It is located inside the bent part and is rotatably provided around the fulcrum shaft 8. Then, the dowel 4 of the plug blade 1 is provided so that the base of the plug blade 1 is in contact with the side surface of the terminal plate 2. In addition, 12 is a main body, 13 is a notch for inserting an electric wire, and 14 is a hole for confirming the insertion of an electric wire.

このような構成において電線を接続するには、
レバー７の操作部９を第２図の矢印Ａ方向に押す
とレバー７は支点軸８を中心に回動し第３図のよ
うに挿作部９と支点軸８との中間にある突起１０
で錠ばね６の両端の電線挿入用切欠１３側面をほ
ぼ垂直に押圧するので錠ばね６の両端を小さな力
で変位させることができる。この変位により端子
板２の上側片３と錠ばね６の両端との間に隙間が
できるので、この隙間に電線を楽に挿入できる。
電線挿入後レバー７の押圧を除くと錠ばね６の復
帰力により自動的に電線は錠ばね６の両端で鎖錠
されるので鎖錠が確実に行われる。又コ字状端子
板２の開口した側面の大部分が上側片３に係合し
たレバー７により覆われているので電線挿入の際
電線が上側片３と錠ばね６の両端との間から外れ
て上側片３と本体１２の内壁との間に入り鎖錠不
能になつたり接触不良となることがない。 To connect the wires in such a configuration,
When the operating portion 9 of the lever 7 is pushed in the direction of arrow A in FIG. 2, the lever 7 rotates around the fulcrum shaft 8, and as shown in FIG.
Since the sides of the electric wire insertion notches 13 at both ends of the lock spring 6 are pressed almost vertically, both ends of the lock spring 6 can be displaced with a small force. This displacement creates a gap between the upper piece 3 of the terminal plate 2 and both ends of the lock spring 6, so that the electric wire can be easily inserted into this gap.
After the electric wire is inserted, when the lever 7 is released from pressure, the electric wire is automatically locked at both ends of the lock spring 6 by the return force of the lock spring 6, so that locking is performed reliably. Also, most of the open side surface of the U-shaped terminal plate 2 is covered by the lever 7 engaged with the upper piece 3, so when inserting the wire, the wire does not come off between the upper piece 3 and both ends of the lock spring 6. This prevents the upper piece 3 from entering between the upper piece 3 and the inner wall of the main body 12, making it impossible to lock the lock or causing poor contact.

又電線を外すときは、レバー７を第２図の矢印
方向に押すと突起１０が錠ばね６の両端を押圧し
て両端を電線から離すことができるので電線を楽
に外すことができる。 Further, when removing the electric wire, when the lever 7 is pushed in the direction of the arrow in FIG. 2, the protrusion 10 presses both ends of the lock spring 6, and both ends can be separated from the electric wire, so that the electric wire can be easily removed.

そして本発明によればレバー７を端子板２の傾
斜した上側片３に設けたので、第２図、第３図か
ら明らかなように上側片３の電線挿入側の高さと
同等にすることができるので端子装置を薄い平型
とすることができる。 According to the present invention, since the lever 7 is provided on the inclined upper piece 3 of the terminal plate 2, the height can be made equal to the height of the upper piece 3 on the wire insertion side, as is clear from FIGS. 2 and 3. Therefore, the terminal device can be made thin and flat.

上述した本発明によれば次のような種々の効果
が得られる。 According to the present invention described above, the following various effects can be obtained.

(1) レバーの回動押圧をはずすと電線は自動的に
鎖錠される自動復帰型であるため結線の忘れが
全くない。(1) The electric wire is automatically locked when the lever is released from the rotation pressure, so there is no need to forget to connect the wire.

(2) レバーはてこの原理を利用しかつ錠ばねの両
端の側面を垂直に押圧しているので小さな操作
力で操作ができる。(2) The lever uses the principle of leverage and presses the sides of both ends of the locking spring vertically, so it can be operated with a small amount of operating force.

(3) 錠ばねの両端で電線を鎖錠することができる
ので電線の鎖錠が確実にでき振動等によつて電
線が緩むことがない。(3) Since the wire can be locked at both ends of the lock spring, the wire can be securely locked and will not loosen due to vibrations, etc.

(4) コ字状端子板の開口した側面の大部分が上側
片に係合したレバーにより覆われているので挿
入した電線が上側片と錠ばねの両端との間から
逃げず確実な接続を行うことができる。(4) Since most of the open side of the U-shaped terminal plate is covered by the lever that engages with the upper piece, the inserted wire will not escape from between the upper piece and both ends of the lock spring, ensuring a secure connection. It can be carried out.

(5) レバーは端子板の前方に向つて下に傾斜した
上側片に係合しているので、レバーの上端を端
子板の高さより上に突出しないようにすること
が可能であり、本体を薄い平型とすることがで
きる。(5) Since the lever engages with the upper piece that slopes downward toward the front of the terminal board, it is possible to prevent the upper end of the lever from protruding above the height of the terminal board, making it possible to It can be made into a thin flat shape.

【図面の簡単な説明】[Brief explanation of the drawing]

図面はこの発明の一実施例を示し、第１図イは
端子装置の要部を分解した斜視図、第１図ロはレ
バーの裏面図、第２図、第３図は端子装置の断面
図である。 ２……端子板、３……上側片、６……錠ばね、
７……レバー、１０……突起。 The drawings show one embodiment of the present invention; FIG. 1A is an exploded perspective view of the main parts of the terminal device, FIG. 1B is a back view of the lever, and FIGS. 2 and 3 are cross-sectional views of the terminal device. It is. 2...Terminal board, 3...Upper piece, 6...Lock spring,
7...Lever, 10...Protrusion.

Claims (1)

【特許請求の範囲】[Claims] １ 上側片が前方に向つて下に傾斜した断面コ字
状の端子板と、この端子板の側面部に基部が接し
て設けられた栓刃と、前記端子板内に両端を上向
きに挿入された錠ばねと、前記端子板の上側片の
側縁が係合する上側片の厚みより十分大きな巾を
有する溝と前記錠ばねの両端の電線挿入側面に
夫々当接する一対の突起及び前記錠ばねの基部の
電線挿入側の折曲部内側に位置する支点軸とを有
するレバーとを備えた端子装置。1. A terminal plate having a U-shaped cross section with the upper side inclined downward toward the front, a plug blade whose base is in contact with the side surface of this terminal plate, and a plug blade whose both ends are inserted upward into the terminal plate. a locking spring, a groove having a width sufficiently larger than the thickness of the upper piece with which the side edge of the upper piece of the terminal board engages, a pair of protrusions that abut the wire insertion sides at both ends of the locking spring, and the locking spring. A terminal device comprising a lever having a fulcrum shaft located inside a bent portion on the wire insertion side of the base of the terminal device.