JPS6246954B2 - - Google Patents

Description

【発明の詳細な説明】 本発明はスイツチなどの配線器具における端子
部の構造に関するものであり、特に電線の被覆を
除去しないでそのまま接続を行なえるようにした
速結型の端子装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to the structure of a terminal in a wiring device such as a switch, and in particular to a quick-connect terminal device that allows connection to be made without removing the wire coating. be.

スイツチや各種コネクタなどの配線器具の端子
としては、ねじ式のもの、半田付式のもの、圧着
端子式のものなどがあるが、ねじ式のものでは小
型な器具本体に対してねじの大きさのために端子
部全体のスペースが大きくなり、半田付式のもの
では半田付作業が必要で接続が面倒であると共に
フラツクスの内部流入防止の注意が必要であり、
また圧着端子式では電線側の圧着端子と器具側の
受金具の寸法が規格で定められていて小さくでき
ないなどの問題点があり、配線器具の小型化が阻
害される大きな要因となると共に接続作業を煩わ
しくしていた。 There are several types of terminals for wiring devices such as switches and various connectors: screw type, solder type, and crimp terminal type. Therefore, the space of the entire terminal part becomes large, and soldering type requires soldering work and connection is troublesome, and care must be taken to prevent flux from flowing inside.
In addition, with the crimp terminal type, there are problems such as the dimensions of the crimp terminal on the wire side and the receiving bracket on the device side are determined by standards and cannot be made smaller.This is a major factor that hinders the miniaturization of wiring devices and is a major factor in the connection work. It was bothersome.

本発明はこのような従来の配線器具における問
題点を解決し、ねじや圧着端子を使用せず、また
半田付も行なうことなく電線を確実に接続でき、
小型で接続作業の容易な配線器具の端子装置を提
供することを目的としてなされたものであり、器
具本体より突設した端子台に電線挿入溝を形成
し、この電線挿入溝の奥部に電線の芯線接触部を
有する端子金具を設け、電線挿入溝に対応してテ
ーパ状突起を形成した電線押さえリングを端子台
に環着し、端子台に刻設したねじ部に固定キヤツ
プを螺着して電線押さえリングを端子台の基部方
向へ押圧することにより、テーパ状突起により電
線を端子金具の芯線接触部に圧接して、電線の芯
線と端子金具とを接続するようにしたものであ
る。 The present invention solves these problems with conventional wiring devices, and enables reliable connection of electric wires without using screws or crimp terminals or without soldering.
The purpose of this device is to provide a terminal device for a wiring device that is small and easy to connect.A wire insertion groove is formed in the terminal block that protrudes from the device body, and the wire is inserted deep into the wire insertion groove. A terminal fitting having a core wire contact part is provided, a wire holding ring with a tapered protrusion corresponding to the wire insertion groove is attached to the terminal block, and a fixing cap is screwed onto the threaded part cut into the terminal block. By pressing the wire holding ring toward the base of the terminal block, the tapered protrusion presses the wire against the core contact portion of the terminal fitting, thereby connecting the core wire of the wire and the terminal fitting.

以下図面により本発明の実施例を説明する。第
１図および第２図において、１は器具本体であ
り、裁頭円錐状の端子台２を突設してある。この
端子台２の先端には雄ねじ部３を形成してあり、
雄ねじ部３の端面から端子台２の基部へかけて電
線挿入溝４を形成してある。この電線挿入溝４は
中間部から奥は端子台２の外面に沿つて傾斜して
おり、電線の芯線一本に対して一個設けられる。
図は三芯電線用の場合であり三個設けてある。５
は電線挿入溝４の奥部に設けられた端子金具であ
り、器具本体１に埋込んで一体にモールド成形さ
れ、他端は器具本体１内の導電部品に適宜接続さ
れており、上面には電線の芯線接触部６を凹設し
てある。７は端子台２に環着される電線押さえリ
ングで、端子台２と同様に裁頭円錐状となつてお
り、内面には電線挿入溝４に挿入されるテーパ状
突起８を設けてある。９は固定キヤツプで、一方
の端面に電線押さえリング７の外形に応じた凹部
１０を設け、さらに凹部１０に連通して端子台２
の雄ねじ部３に対応した雌ねじ部１１を形成し、
他端にはコードの外装の部分が挿入される段部１
２と凹溝１３を設け、凹溝１３にゴムブツシユ１
４を嵌挿してある。 Embodiments of the present invention will be described below with reference to the drawings. In FIGS. 1 and 2, reference numeral 1 denotes a device main body, on which a truncated conical terminal block 2 is protruded. A male threaded portion 3 is formed at the tip of this terminal block 2.
A wire insertion groove 4 is formed from the end surface of the male threaded portion 3 to the base of the terminal block 2. This electric wire insertion groove 4 is inclined along the outer surface of the terminal block 2 from the middle part to the back, and one groove is provided for each core wire of the electric wire.
The figure shows the case of a three-core electric wire, and three are provided. 5
is a terminal fitting provided in the deep part of the wire insertion groove 4, which is embedded in the device body 1 and integrally molded, the other end is connected to the conductive parts in the device body 1 as appropriate, and the top surface is The core contact portion 6 of the electric wire is recessed. Reference numeral 7 denotes a wire holding ring which is attached to the terminal block 2, and has a truncated conical shape like the terminal block 2, and has a tapered projection 8 inserted into the wire insertion groove 4 on the inner surface. Reference numeral 9 designates a fixed cap, which has a concave portion 10 corresponding to the outer shape of the wire holding ring 7 on one end surface, and communicates with the concave portion 10 to connect the terminal block 2.
Forming a female threaded portion 11 corresponding to the male threaded portion 3 of
The other end is a stepped portion 1 into which the outer part of the cord is inserted.
2 and a groove 13 are provided, and a rubber bush 1 is installed in the groove 13.
4 is inserted.

次に電線接続の手順を述べると、外装の端部を
電線挿入溝４の長さに対応する長さだけ除去し、
内部の電線１６は絶縁被覆を除去してないコード
１５を固定キヤツプ９、電線押さえリング７に挿
通し、各電線１６を電線挿入溝４にそれぞれ挿入
して、電線１６の先端を端子金具５の芯線接触部
６の上に位置させる。次いで、電線押さえリング
７をそのテーパ状突起８を電線挿入溝４に入れな
がら端子台２に環着し、固定キヤツプ９をその上
から被せて雄ねじ部３に雌ねじ部１１を螺合さ
せ、固定キヤツプ９を締め付けて行くと、電線押
さえリング７が端子台２の基部方向へ移動し、テ
ーパ状突起８のテーパ面８ａによつて端子金具５
に乗つている電線１６が押圧され、芯線接触部６
に押し込まれる。この時、芯線接触部６のエツジ
部で電線１６の被覆が切断されて芯線接触部６の
入口に残され、芯線のみが芯線接触部６の中に押
し込まれるのであり、固定キヤツプ９の締め付け
操作によつて芯線と端子金具５との接続が自動的
に完了し、同時に機械的な接続も完了する。な
お、コード１５の外装部はゴムブツシユ１４によ
つて押圧され、この部分でのシールとクランプも
同時に完了する。 Next, to describe the procedure for connecting the wires, remove the end of the sheath by a length corresponding to the length of the wire insertion groove 4,
For the internal electric wires 16, insert the cord 15 without removing the insulation coating through the fixing cap 9 and the wire holding ring 7, insert each electric wire 16 into the wire insertion groove 4, and insert the tip of the electric wire 16 into the terminal fitting 5. It is located above the core wire contact part 6. Next, the wire holding ring 7 is attached to the terminal block 2 with its tapered protrusion 8 inserted into the wire insertion groove 4, and the fixing cap 9 is placed over it, and the female threaded portion 11 is screwed into the male threaded portion 3 to fix it. As the cap 9 is tightened, the wire holding ring 7 moves toward the base of the terminal block 2, and the tapered surface 8a of the tapered protrusion 8 holds the terminal fitting 5.
The electric wire 16 on the core wire contact portion 6 is pressed.
pushed into. At this time, the sheathing of the electric wire 16 is cut at the edge of the core wire contact section 6 and left at the entrance of the core wire contact section 6, and only the core wire is pushed into the core wire contact section 6, and the fixing cap 9 is tightened. As a result, the connection between the core wire and the terminal fitting 5 is automatically completed, and at the same time, the mechanical connection is also completed. Note that the exterior portion of the cord 15 is pressed by the rubber bush 14, and sealing and clamping at this portion are completed at the same time.

第３図は電線押さえリング７の他の実施例を示
すもので、テーパ状突起８の前端部に電線案内口
８ｂを凹設したものであり、このような電線案内
口８ｂを設けてあると、電線１６に沿つて入りや
すくなり、電線１６が雄ねじ部３のねじ面の方に
はみ出したりせず、接続作業が楽に行なえるよう
になる。 FIG. 3 shows another embodiment of the wire holding ring 7, in which a wire guide hole 8b is recessed in the front end of the tapered projection 8. , the wire 16 can be easily inserted along the wire 16, the wire 16 will not protrude toward the threaded surface of the male threaded portion 3, and the connection work can be performed easily.

また、端子金具５の芯線接触部６は、上述した
実施例においては凹状とし、そのエツジ部で電線
の被覆を切りながら芯線のみを押し込む方式とし
ているが、端子金具として楔状に尖つた芯線接触
部を突設したものを用い、この芯線接触部が被覆
を貫通して内部の芯線部に挿入されて接続が行な
わわれるようにしてもよく、また芯線接触部は一
個の端子金具に一個ないし複数個設ければよい。
第４図は凹状の芯線接触部を有する端子金具の他
の実施例であり、先端を直角に折り曲げたばね性
のある銅合金板製の端子片５ａとこれにスポツト
溶接した端子片５ｂとで構成され、芯線接触部６
を凹設したものである。芯線接触部６の入口はＶ
字状に切除して芯線挿入ガイド６ａとしてあり、
その挿入ガイド６ａの部分は同図ｄに示すように
エツジ加工を施してある。１６ａ，１６ｂは圧入
前の芯線部の直径と被覆の外径を示す。この端子
片５ａの実寸法は全長が約14mm程度であり、端子
装置全体の大きさがねじ式のものなどと比較して
非常に小型化され得ることがわかる。 In addition, the core wire contacting portion 6 of the terminal fitting 5 has a concave shape in the above-mentioned embodiment, and a method is adopted in which only the core wire is pushed in while cutting the sheath of the wire at the edge portion. The core wire contact portion may be inserted into the inner core wire portion through the sheath to make the connection, and one or more core wire contact portions may be provided on one terminal fitting. Just set it up.
Fig. 4 shows another embodiment of a terminal fitting having a concave core contact portion, and is composed of a terminal piece 5a made of a springy copper alloy plate with the tip bent at right angles, and a terminal piece 5b spot-welded thereto. and the core wire contact part 6
It is recessed. The entrance of the core wire contact part 6 is V
The core wire insertion guide 6a is cut out in the shape of a letter.
The insertion guide 6a is edged as shown in FIG. d. 16a and 16b indicate the diameter of the core wire portion and the outer diameter of the coating before press-fitting. The actual size of this terminal piece 5a is approximately 14 mm in total length, and it can be seen that the overall size of the terminal device can be made much smaller than that of a screw type.

本発明は上述のように、器具本体より突設した
裁頭円錐状の端子台の上面に雄ねじ部を突設する
とともに、端子台部分が内底面が端子台の外面に
沿つた傾斜面となつた電線挿入溝を雄ねじ部の周
面から端子台の周面に亘つて形成し、電線の芯線
を接触させる複数の芯線接触部が形成され配線器
具の内部回路に接続された端子金具を上記電線挿
入溝の端子台部分に設け、上記端子台に被嵌され
上記電線挿入溝に嵌入されるテーパ状突起が内周
面に形成された略円筒状の電線押さえリングと、
一端側内周面で上記電線押さえリングを被嵌する
とともに他端側内周面に上記端子台の上面の雄ね
じ部に螺合される雌ねじ部が刻設された円筒状の
固定キヤツプとを備え、上記電線押さえリング及
び固定キヤツプを挿通して電線を電線挿入溝内に
設けた端子金具の芯線接触部上に載置するととも
に、上記押さえリングのテーパ状突起を電線挿入
溝に嵌合させて電線押さえリングを端子台に被嵌
し、固定キヤツプを電線押さえリングに被嵌して
端子台の雄ねじ部に螺着しているので、ねじ式や
圧着端子式のようにねじや圧着端子のためにスペ
ースをとられることがなく、また半田付式のよう
にフラツクス流入防止対策などの必要がなく、端
子部分の寸法を小型化して器具全体を小型化する
ことが可能となるのであり、また接続に際しては
芯線を覆う絶縁被覆を除去せずにそのまま接続で
きるから被覆除去作業は不要となり、半田付作業
や圧着作業なども不要であるため簡単な操作で接
続作業を行うことができる。また、電線押さえリ
ング及び固定キヤツプを挿通して電線を電線挿入
溝内に設けた端子金具の芯線接触部上に載置し、
電線押さえリングのテーパ状突起を電線挿入溝に
嵌合させて電線押さえリングを端子台に被嵌し、
固定キヤツプを電線押さえリングに被嵌して端子
台の雄ねじ部に螺着する、所謂ねじ込み式で電線
を接続するものであるので、配線器具自体に直接
に大きな力を加えることなく、電線の接続を行う
ことができ、このため端子装置が設けられた配線
器具自体を破損させたりすることがなく、しかも
電線の着脱が自在であるから、例えばコネクタの
ような配線器具に本発明の端子装置を用いた場合
に、回路変更などにより接続された電線を変更す
る必要が生じたときなど、容易に電線の差し替え
を行うことができ、さらに端子金具に電線の芯線
を接触させる複数の芯線接触部が形成されている
ので、電線の芯線が確実に端子金具に接触して、
電線の接続の信頼性が高く、例えば微少電流用の
配線器具などに用いられる場合に、接触抵抗が大
きくなつて回路的な影響がでることがない効果が
ある。 As described above, the present invention includes a male threaded portion protruding from the top surface of a truncated conical terminal block protruding from the device body, and an inner bottom surface of the terminal block portion being an inclined surface along the outer surface of the terminal block. A wire insertion groove is formed from the circumferential surface of the male thread part to the circumferential surface of the terminal block, and a terminal fitting connected to the internal circuit of the wiring device is formed with a plurality of core wire contact parts for contacting the core wires of the wire. a substantially cylindrical wire holding ring provided in the terminal block portion of the insertion groove, the inner peripheral surface of which is formed with a tapered protrusion that is fitted into the terminal block and into the wire insertion groove;
A cylindrical fixing cap is provided with an inner peripheral surface on one end into which the wire retaining ring is fitted, and an inner peripheral surface on the other end with a female threaded portion that is screwed into the male threaded portion on the top surface of the terminal block. , inserting the wire holding ring and fixing cap to place the wire on the core contacting part of the terminal fitting provided in the wire insertion groove, and fitting the tapered protrusion of the holding ring into the wire insertion groove; The wire retaining ring is fitted onto the terminal block, and the fixing cap is fitted over the wire retaining ring and screwed onto the male threaded part of the terminal block, so it cannot be used with screw or crimp terminals like the screw type or crimp terminal type. There is no need to take measures to prevent flux from flowing in as with the soldering type, and it is possible to reduce the size of the terminal part and the overall size of the device. In this case, the insulation coating covering the core wire can be connected as is without removing it, so there is no need to remove the coating, and since there is no need for soldering or crimping, the connection can be performed with simple operations. In addition, the wire is placed on the core contact portion of the terminal fitting provided in the wire insertion groove by inserting the wire holding ring and the fixing cap,
Fit the tapered protrusion of the wire holding ring into the wire insertion groove, and fit the wire holding ring onto the terminal block.
Wires can be connected using the so-called screw-in method, in which the fixed cap is fitted over the wire retaining ring and screwed onto the male threaded part of the terminal block, so the wires can be connected without directly applying large force to the wiring device itself. The terminal device of the present invention can be used in wiring devices such as connectors, for example, because it does not damage the wiring device itself in which the terminal device is installed, and the wires can be attached and detached freely. When used, the wires can be easily replaced when it is necessary to change the connected wires due to circuit changes, etc., and there are multiple core wire contact parts that allow the wire cores to contact the terminal fittings. The core wire of the wire is securely in contact with the terminal fitting.
The reliability of the electric wire connection is high, and when used, for example, in a wiring device for microcurrent, there is an effect that the contact resistance does not increase and the circuit is not affected.

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

第１図は本発明の一実施例の一部破断分解斜視
図、第２図は同実施例の電線接続状態における要
部の側断面図、第３図ａ，ｂ，ｃはそれぞれ他の
実施例における電線押さえリングの要部の正面
図、ａ図のＡ―Ａ線断面図、背面図、第４図ａ，
ｂ，ｃ，ｄはそれぞれ他の実施例における端子金
具の側面図、上面図、正面図およびｂ図のＢ―Ｂ
線断面図である。 １は器具本体、２は端子台、３は雄ねじ部、４
は電線挿入溝、５は端子金具、６は芯線接触部、
７は電線押さえリング、８はテーパ状突起、９は
固定キヤツプ、１０は凹部、１１は雌ねじ部、１
６は電線である。 Fig. 1 is a partially cutaway exploded perspective view of one embodiment of the present invention, Fig. 2 is a side sectional view of the main parts of the same embodiment in a wire connected state, and Figs. A front view of the main parts of the wire holding ring in the example, a sectional view taken along line A-A in figure a, a rear view, figure 4 a,
b, c, and d are side views, top views, front views, and B-B of figure b, respectively, of terminal fittings in other embodiments.
FIG. 1 is the device body, 2 is the terminal block, 3 is the male thread part, 4
is the wire insertion groove, 5 is the terminal fitting, 6 is the core wire contact part,
7 is a wire holding ring, 8 is a tapered projection, 9 is a fixing cap, 10 is a recessed portion, 11 is a female screw portion, 1
6 is an electric wire.

Claims (1)

【特許請求の範囲】[Claims] １ 器具本体より突設した裁頭円錐状の端子台の
上面に雄ねじ部を突設するとともに、端子台部分
の内底面が端子台の外面に沿つた傾斜面となつた
電線挿入溝を雄ねじ部の周面から端子台の周面に
亘つて形成し、電線の芯線を接触させる複数の芯
線接触部が形成され配線器具の内部回路に接続さ
れた端子金具を上記電線挿入溝の端子台部分に設
け、上記端子台に被嵌され上記電線挿入溝に嵌入
されるテーパ状突起が内周面に形成された略円筒
状の電線押さえリングと、一端側内周面で上記電
線押さえリングを被嵌するとともに他端側内周面
に上記端子台の上面の雄ねじ部に螺合される雌ね
じ部が刻設された円筒状の固定キヤツプとを備
え、上記電線押さえリング及び固定キヤツプを挿
通して電線を電線挿入溝内に設けた端子金具の芯
線接触部上に載置するとともに、上記押さえリン
グのテーパ状突起を電線挿入溝に嵌合させて電線
押さえリングを端子台に被嵌し、固定キヤツプを
電線押さえリングに被嵌して端子台の雄ねじ部に
螺着して成ることを特徴とする配線器具の端子装
置。1. A male thread is provided on the upper surface of the truncated conical terminal block that protrudes from the device body, and a wire insertion groove with an inclined surface along the outer surface of the terminal block is formed on the male thread. A terminal fitting is formed from the circumferential surface of the terminal block to the circumferential surface of the terminal block, has a plurality of core wire contact parts for contacting the core wires of the electric wire, and is connected to the internal circuit of the wiring device, and is connected to the terminal block part of the electric wire insertion groove. a substantially cylindrical wire holding ring having an inner peripheral surface formed with a tapered protrusion that is fitted into the terminal block and fitted into the wire insertion groove; and the wire holding ring is fitted on the inner peripheral surface of one end side. and a cylindrical fixing cap with a female threaded part carved on the inner peripheral surface of the other end to be screwed into the male threaded part on the top surface of the terminal block, and the wire can be inserted through the wire retaining ring and the fixing cap. is placed on the core wire contacting part of the terminal fitting provided in the wire insertion groove, and the tapered protrusion of the holding ring is fitted into the wire insertion groove, the wire holding ring is fitted onto the terminal block, and the fixed cap is attached. A terminal device for a wiring device, characterized in that the terminal device is fitted onto a wire holding ring and screwed onto a male threaded portion of a terminal block.