JP6211646B2

JP6211646B2 - Conduit connection

Info

Publication number: JP6211646B2
Application number: JP2016103556A
Authority: JP
Inventors: 早川　和行; 和行早川
Original assignee: Mirai Kogyo KK
Current assignee: Mirai Kogyo KK
Priority date: 2016-05-24
Filing date: 2016-05-24
Publication date: 2017-10-11
Anticipated expiration: 2032-07-05
Also published as: JP2016158498A

Description

この発明は、硬質塩化ビニル電線管が接続される、電線管の接続体に関するものである。 The present invention relates to a connecting body of a conduit tube to which a hard polyvinyl chloride conduit tube is connected.

従来、硬質塩化ビニル電線管が接続される接続体として、例えばケーブル引込用キャップがあった（例えば、特許文献１参照）。このケーブル引込用キャップは、ケーブル（電線）の引込孔と、電線管が挿入されて接続される受口とを有していた。そこで、ケーブルは、一旦、引込孔からキャップ内に入り、その後に、受口を通って電線管内へと配設された。 Conventionally, there has been a cable lead-in cap, for example, as a connection body to which a hard vinyl chloride conduit tube is connected (see, for example, Patent Document 1). This cable lead-in cap had a cable (electric wire) lead-in hole and a receiving port to which a conduit tube was inserted and connected. Therefore, the cable once entered the cap from the lead-in hole, and was then disposed in the conduit through the receiving port.

特開２００２−２３８１３２号公報JP 2002-238132 A

ところで、前記従来のケーブル引込用キャップにおいては、受口へ、硬質塩化ビニル電線管を接続するにあたっては、もっぱら接着により行なっていた。そのため、電線管とか受口に接着材を塗布したり、接着力が所要の強度に達するまで養生する必要があったりと、その接続作業に手間がかかっていた。 By the way, in the conventional cable lead-in cap, the rigid vinyl chloride conduit tube is connected to the receiving port exclusively by adhesion. For this reason, it takes time and effort to apply an adhesive to the conduit or the receptacle, or to cure the adhesive until the adhesive strength reaches a required strength.

この発明は、上記した従来の欠点を解決するためになされたものであり、その目的とするところは、硬質塩化ビニル電線管を、簡単に接続することができる、電線管の接続体を提供することにある。 The present invention has been made to solve the above-described conventional drawbacks, and an object of the present invention is to provide a connecting body for a conduit that can easily connect a rigid polyvinyl chloride conduit. There is.

この発明に係る電線管の接続体は、前記目的を達成するために、次の構成からなる。すなわち、
請求項１に記載の発明に係る電線管の接続体は、中空の本体と、その本体内に通ずる受口とを備えて、前記受口に、内外面が平滑な硬質塩化ビニル電線管の端部が挿入されて接続される、接続体である。ここで、前記受口内に、バネ性を有する金属板材からなる係止爪体を備える。その係止爪体は、前記受口の内面に設けられる収容凹部に配置されて前記受口の周方向に延びるリング状またはＣリング状の爪体基部と、その爪体基部の内側から延出するとともに、前記受口の内方かつ奥方へ向けて傾斜するように突出して前記硬質塩化ビニル電線管をその外面側において係止する複数の係止爪とからなって、それら複数の係止爪が、前記受口の周方向に沿って配置される。そして、前記受口の、前記係止爪よりも奥方に、前記硬質塩化ビニル電線管の端面が当たることでそれ以上の前記硬質塩化ビニル電線管の挿入を制止する制止部が設けられる。そこで、前記係止爪は、先端まで同じ肉厚であり、前記受口に挿入される前記硬質塩化ビニル電線管の移動に伴って前記受口の奥方側へと倒れるように傾動することにより、前記硬質塩化ビニル電線管の挿入を許容するとともに、前記受口から抜け出ようとする前記硬質塩化ビニル電線管に対しては、その硬質塩化ビニル電線管の外面を係止することにより、その硬質塩化ビニル電線管の抜け出を規制する。 In order to achieve the above object, the conduit connector according to the present invention has the following configuration. That is,
An electric wire connecting body according to claim 1 includes a hollow main body and a receiving port communicating with the inside of the main body, and an end of a rigid polyvinyl chloride electric wire tube having a smooth inner and outer surface at the receiving port. It is a connection body in which a part is inserted and connected. Here, a latching claw body made of a metal plate material having a spring property is provided in the receiving port. The locking claw body is disposed in a receiving recess provided on the inner surface of the receiving port and extends in the circumferential direction of the receiving port, and extends from the inside of the claw body base portion. And a plurality of locking claws that protrude so as to incline toward the inner side and the inner side of the receiving port and lock the hard polyvinyl chloride electric wire tube on the outer surface side thereof. Is arranged along the circumferential direction of the receptacle. And the stop part which stops insertion of the said hard polyvinyl chloride electric wire pipe | tube further by the end surface of the said hard vinyl chloride electric wire pipe | tube contacting the back of the said latching claw of the said receiving port is provided. Therefore, the locking claw is the same thickness up to the tip , and by tilting so as to fall to the back side of the receiving port with the movement of the hard polyvinyl chloride conduit tube inserted into the receiving port, The hard vinyl chloride conduit is allowed to be inserted and the outer surface of the hard polyvinyl chloride conduit is locked against the hard vinyl chloride conduit which is about to be pulled out from the receiving port. Regulates the exit of vinyl conduits.

この接続体によると、硬質塩化ビニル電線管が挿入される受口内に、バネ性を有する金属板材からなる係止爪体を備える。この係止爪体は、リング状またはＣリング状の爪体基部と、その爪体基部の内側から延出する複数の係止爪とからなって、それら複数の係止爪が、受口の周方向に沿って配置される。ここにおいて、係止爪は、受口の内方かつ奥方へ向けて傾斜するように突出しており、この係止爪が、受口に挿入される硬質塩化ビニル電線管の移動に伴って、受口の奥方へと倒れるように傾動することで、硬質塩化ビニル電線管は、その挿入が阻止されることなく、受口に進入する。そして、硬質塩化ビニル電線管は、受口の奥方の制止部に当たることで、その挿入が完了する。反対に、硬質塩化ビニル電線管の、受口からの抜け出に対しては、係止爪が硬質塩化ビニル電線管の外面を係止することで、その抜け出が規制される。こうして、硬質塩化ビニル電線管は、接着の必要もなく、接続体の受口に接続される。 According to this connection body, the latching claw body made of a metal plate material having a spring property is provided in the receiving port into which the hard polyvinyl chloride conduit tube is inserted. The locking claw includes a ring-shaped or C-ring-shaped claw body base and a plurality of locking claws extending from the inside of the claw body base. Arranged along the circumferential direction. Here, the locking claw protrudes so as to incline toward the inner side and the back side of the receiving port, and this locking claw is received by the movement of the rigid polyvinyl chloride conduit tube inserted into the receiving port. By tilting so as to fall to the back of the mouth, the rigid polyvinyl chloride conduit tube enters the receiving port without being prevented from being inserted. Then, the insertion of the hard vinyl chloride conduit tube is completed when it hits the stop portion at the back of the receiving port. On the contrary, when the hard vinyl chloride conduit tube is pulled out from the receiving port, the latching claw locks the outer surface of the hard polyvinyl chloride conduit tube, thereby restricting the slippage. In this way, the rigid polyvinyl chloride conduit is connected to the receptacle of the connection body without the need for adhesion.

また、請求項２に記載の発明に係る電線管の接続体は、中空の本体と、その本体内に通ずる受口とを備えて、前記受口に、内外面が平滑な硬質塩化ビニル電線管の端部が挿入されて接続される、接続体である。ここで、前記受口には、その受口の内方かつ奥方へ向けて傾斜するように突出して前記硬質塩化ビニル電線管をその外面側において係止する複数の係止爪が、前記受口の周方向に沿って配置される。そして、前記受口の、前記係止爪よりも奥方に、前記硬質塩化ビニル電線管の端面が当たることでそれ以上の前記硬質塩化ビニル電線管の挿入を制止する制止部が設けられる。そこで、前記係止爪は、先端まで同じ肉厚であり、前記受口に挿入される前記硬質塩化ビニル電線管の移動に伴って前記受口の奥方側へと倒れるように傾動することにより、前記硬質塩化ビニル電線管の挿入を許容するとともに、前記受口から抜け出ようとする前記硬質塩化ビニル電線管に対しては、その硬質塩化ビニル電線管の外面を係止することにより、その硬質塩化ビニル電線管の抜け出を規制する。 In addition, a connecting body for a conduit according to the invention of claim 2 includes a hollow main body and a receiving port communicating with the inside of the main body, and the receiving port has a rigid polyvinyl chloride conduit having a smooth inner and outer surface. It is a connection body in which the edge part of is inserted and connected. Here, the receiving port includes a plurality of locking claws that protrude so as to incline toward the inner side and the inner side of the receiving port and lock the hard polyvinyl chloride electric wire tube on the outer surface side. It is arranged along the circumferential direction. And the stop part which stops insertion of the said hard polyvinyl chloride electric wire pipe | tube further by the end surface of the said hard vinyl chloride electric wire pipe | tube contacting the back of the said latching claw of the said receiving port is provided. Therefore, the locking claw is the same thickness up to the tip , and by tilting so as to fall to the back side of the receiving port with the movement of the hard polyvinyl chloride conduit tube inserted into the receiving port, The hard vinyl chloride conduit is allowed to be inserted and the outer surface of the hard polyvinyl chloride conduit is locked against the hard vinyl chloride conduit which is about to be pulled out from the receiving port. Regulates the exit of vinyl conduits.

この接続体によると、硬質塩化ビニル電線管が挿入される受口には、その受口の周方向に沿って、係止爪が複数、配置される。ここにおいて、係止爪は、受口の内方かつ奥方へ向けて傾斜するように突出しており、この係止爪が、受口に挿入される硬質塩化ビニル電線管の移動に伴って、受口の奥方へと倒れるように傾動することで、硬質塩化ビニル電線管は、その挿入が阻止されることなく、受口に進入する。そして、硬質塩化ビニル電線管は、受口の奥方の制止部に当たることで、その挿入が完了する。反対に、硬質塩化ビニル電線管の、受口からの抜け出に対しては、係止爪が硬質塩化ビニル電線管の外面を係止することで、その抜け出が規制される。こうして、硬質塩化ビニル電線管は、接着の必要もなく、接続体の受口に接続される。
また、請求項３に記載の発明に係る電線管の接続体は、中空の本体と、その本体内に通ずる受口とを備えて、前記受口に、内外面が平滑な硬質塩化ビニル電線管の端部が挿入されて接続される、接続体である。ここで、前記受口には、その受口の内方かつ奥方へ向けて傾斜するように突出して前記硬質塩化ビニル電線管をその外面側において係止する複数の係止爪が、前記受口の周方向に沿って配置される。そして、前記受口の、前記係止爪よりも奥方に、前記硬質塩化ビニル電線管の端面が当たることでそれ以上の前記硬質塩化ビニル電線管の挿入を制止する制止部が設けられる。そこで、前記係止爪は、前記受口に挿入される前記硬質塩化ビニル電線管の移動に伴って前記受口の奥方側へと倒れるように傾動することにより、前記硬質塩化ビニル電線管の挿入を許容するとともに、前記受口から抜け出ようとする前記硬質塩化ビニル電線管に対しては、その硬質塩化ビニル電線管の外面を係止することにより、その硬質塩化ビニル電線管の抜け出を規制するものであって、その抜け出を規制した係止状態は、前記硬質塩化ビニル電線管を引き抜き方向に荷重をかけながら周方向に回動させると、前記係止爪により前記硬質塩化ビニル電線管の外面の材料が掻き集められてフランジ部が形成され、そのフランジ部により前記硬質塩化ビニル電線管の引き抜きが阻止される係止状態である。
また、請求項４に記載の発明に係る電線管の接続体は、中空の本体と、その本体内に通ずる受口とを備えて、前記受口に、内外面が平滑な硬質塩化ビニル電線管の端部が挿入されて接続される、接続体である。ここで、前記受口には、その受口の内方かつ奥方へ向けて傾斜するように突出して前記硬質塩化ビニル電線管をその外面側において係止する複数の係止爪が、前記受口の周方向に沿って配置される。そして、前記受口の、前記係止爪よりも奥方に、前記硬質塩化ビニル電線管の端面が当たることでそれ以上の前記硬質塩化ビニル電線管の挿入を制止する制止部が設けられる。そこで、前記係止爪は、前記受口に挿入される前記硬質塩化ビニル電線管の移動に伴って前記受口の奥方側へと倒れるように傾動することにより、前記硬質塩化ビニル電線管の挿入を許容するとともに、前記受口から抜け出ようとする前記硬質塩化ビニル電線管に対しては、その硬質塩化ビニル電線管の外面を係止することにより、その硬質塩化ビニル電線管の抜け出を規制するものであって、その抜け出を規制した係止状態は、前記硬質塩化ビニル電線管を引き抜き方向に荷重をかけながら周方向に回動させることで、前記硬質塩化ビニル電線管を引き抜くことができる係止状態である。 According to this connection body, a plurality of locking claws are arranged along the circumferential direction of the receiving opening into which the rigid polyvinyl chloride conduit is inserted. Here, the locking claw protrudes so as to incline toward the inner side and the back side of the receiving port, and this locking claw is received by the movement of the rigid polyvinyl chloride conduit tube inserted into the receiving port. By tilting so as to fall to the back of the mouth, the rigid polyvinyl chloride conduit tube enters the receiving port without being prevented from being inserted. Then, the insertion of the hard vinyl chloride conduit tube is completed when it hits the stop portion at the back of the receiving port. On the contrary, when the hard vinyl chloride conduit tube is pulled out from the receiving port, the latching claw locks the outer surface of the hard polyvinyl chloride conduit tube, thereby restricting the slippage. In this way, the rigid polyvinyl chloride conduit is connected to the receptacle of the connection body without the need for adhesion.
In addition, a connecting body for a conduit according to a third aspect of the present invention comprises a hollow main body and a receiving port communicating with the inside of the main body, and the receiving port has a rigid polyvinyl chloride electric conduit having a smooth inner and outer surface. It is a connection body in which the edge part of is inserted and connected. Here, the receiving port includes a plurality of locking claws that protrude so as to incline toward the inner side and the inner side of the receiving port and lock the hard polyvinyl chloride electric wire tube on the outer surface side. It is arranged along the circumferential direction. And the stop part which stops insertion of the said hard polyvinyl chloride electric wire pipe | tube further by the end surface of the said hard vinyl chloride electric wire pipe | tube contacting the back of the said latching claw of the said receiving port is provided. Therefore, the locking claw is tilted so as to fall to the back side of the receiving port as the hard vinyl chloride conduit tube inserted into the receiving port moves, whereby the insertion of the hard vinyl chloride conduit tube is performed. In addition, the hard vinyl chloride conduit tube that is about to come out of the receptacle is restricted by locking the outer surface of the hard vinyl chloride conduit tube. The locking state in which the withdrawal is restricted is that the outer surface of the rigid polyvinyl chloride conduit is turned by the retaining claws when the rigid polyvinyl chloride conduit is rotated in the circumferential direction while applying a load in the pulling direction. The material is scraped together to form a flange portion, and the flange portion is in a locked state in which the hard vinyl chloride conduit tube is prevented from being pulled out.
In addition, the conduit connector according to the invention of claim 4 includes a hollow main body and a receiving port communicating with the inside of the main body, and the receiving port has a rigid polyvinyl chloride conduit tube with smooth inner and outer surfaces. It is a connection body in which the edge part of is inserted and connected. Here, the receiving port includes a plurality of locking claws that protrude so as to incline toward the inner side and the inner side of the receiving port and lock the hard polyvinyl chloride electric wire tube on the outer surface side. It is arranged along the circumferential direction. And the stop part which stops insertion of the said hard polyvinyl chloride electric wire pipe | tube further by the end surface of the said hard vinyl chloride electric wire pipe | tube contacting the back of the said latching claw of the said receiving port is provided. Therefore, the locking claw is tilted so as to fall to the back side of the receiving port as the hard vinyl chloride conduit tube inserted into the receiving port moves, whereby the insertion of the hard vinyl chloride conduit tube is performed. In addition, the hard vinyl chloride conduit tube that is about to come out of the receptacle is restricted by locking the outer surface of the hard vinyl chloride conduit tube. The locked state in which the withdrawal is restricted is a mechanism that allows the hard polyvinyl chloride conduit to be pulled out by rotating the rigid polyvinyl chloride conduit in the circumferential direction while applying a load in the pulling direction. It is in a stopped state.

この発明に係る電線管の接続体によれば、硬質塩化ビニル電線管を受口に接続するにあたって、係止爪を用いることで、接着の必要がなくなり、その硬質塩化ビニル電線管を、簡単に接続することができる。 According to the connection body of the conduit according to the present invention, when the rigid polyvinyl chloride conduit is connected to the receiving port, the use of the locking claw eliminates the need for adhesion, and the rigid polyvinyl chloride conduit is simply Can be connected.

この発明の一実施の形態の、電線管連結具を示す、一部を破断した正面図である。It is the front view which fractured | ruptured one part which shows the conduit connector of one Embodiment of this invention. 同じく、要部拡大図である。Similarly, it is a principal part enlarged view. 同じく、受口に硬質塩化ビニル電線管を挿入した状態を示す、要部拡大図である。Similarly, it is a principal part enlarged view which shows the state which inserted the hard polyvinyl chloride conduit tube in the receptacle. 同じく、係止爪体の正面図である。Similarly, it is a front view of a latching claw body. 同じく、図４におけるＡ−Ａ線による断面図である。Similarly, it is sectional drawing by the AA in FIG. この発明の他の実施の形態の、配線ボックスを示す、一部を破断した正面図である。It is the front view which fractured | ruptured partially which shows the wiring box of other embodiment of this invention. この発明のさらに他の実施の形態の、電線管端末キャップを示す、一部を破断した正面図である。It is the front view which fractured | ruptured one part which shows the conduit tube end cap of other embodiment of this invention. この発明のさらに他の実施の形態の、屈曲配線経路形成具を示す、一部を破断した正面図である。It is the front view which fractured | ruptured partially which shows the bending wiring path | route formation tool of further another embodiment of this invention. 係止爪体の変形例を示す、正面図である。It is a front view which shows the modification of a latching claw body. 受口に係止解除部材を設けた、図３相当図である。FIG. 4 is a view corresponding to FIG. フランジ部が形成された硬質塩化ビニル電線管を示す、正面図である。It is a front view which shows the hard polyvinyl chloride electric wire pipe in which the flange part was formed.

以下、この発明に係る電線管の接続体を実施するための形態を図面に基づいて説明する。 EMBODIMENT OF THE INVENTION Hereinafter, the form for implementing the connection body of the conduit tube concerning this invention is demonstrated based on drawing.

図１〜図５は、本発明の一実施の形態を示す。図中符号１は、内外面が平滑な硬質塩化ビニル電線管（つまり、内部に電線が配設される、硬質塩化ビニル製の管）を示す。３は、前記硬質塩化ビニル電線管１が接続される、電線管の接続体を示す。 1 to 5 show an embodiment of the present invention. Reference numeral 1 in the figure denotes a hard polyvinyl chloride electric conduit having a smooth inner and outer surfaces (that is, a tube made of hard polyvinyl chloride in which an electric wire is disposed). Reference numeral 3 denotes a conduit connecting body to which the hard vinyl chloride conduit tube 1 is connected.

この接続体３は、中空の本体４と、その本体４内に通ずる受口５を備えており、その受口５に、内外面が平滑な硬質塩化ビニル電線管１の端部が挿入されて接続される。ここにおいて、受口５には、その受口５の内方かつ奥方へ向けて傾斜するように突出して硬質塩化ビニル電線管１をその外面側において係止する複数の係止爪８ａが、受口５の周方向に沿って配置される。そして、受口５の、係止爪８ａよりも奥方に、硬質塩化ビニル電線管１の端面が当たることでそれ以上の硬質塩化ビニル電線管１の挿入を制止する制止部５ａが設けられる。 The connection body 3 includes a hollow main body 4 and a receiving port 5 communicating with the inside of the main body 4, and the end portion of the rigid polyvinyl chloride conduit 1 having a smooth inner and outer surface is inserted into the receiving port 5. Connected. Here, the receiving port 5 has a plurality of locking claws 8a that protrude so as to incline toward the inner side and the inner side of the receiving port 5 and lock the hard polyvinyl chloride conduit tube 1 on the outer surface side. Arranged along the circumferential direction of the mouth 5. And the stop part 5a which stops insertion of the hard vinyl chloride conduit tube 1 beyond it is provided in the back of the receptacle 5 rather than the latching claw 8a.

そこで、前記係止爪８ａは、先端まで同じ肉厚であり、受口５に挿入される硬質塩化ビニル電線管１の移動に伴って受口５の奥方側へと倒れるように傾動することにより、硬質塩化ビニル電線管１の挿入を許容する。反対に、受口５から抜け出ようとする硬質塩化ビニル電線管１に対しては、係止爪８ａは、その硬質塩化ビニル電線管１の外面を係止することにより、その硬質塩化ビニル電線管１の抜け出を規制する（図３参照）。 Therefore, the locking claw 8a has the same thickness up to the tip , and is tilted so as to fall to the back side of the receiving port 5 with the movement of the rigid polyvinyl chloride conduit 1 inserted into the receiving port 5. The insertion of the hard vinyl chloride conduit 1 is allowed. On the contrary, with respect to the hard polyvinyl chloride conduit 1 that is about to come out from the receiving port 5, the locking claw 8 a locks the outer surface of the rigid polyvinyl chloride conduit 1, so that the rigid polyvinyl chloride conduit is 1 is regulated (see FIG. 3).

詳細には、接続体３は、受口５内に係止爪体８を備える。そして、その係止爪体８は、受口５の内面に設けられる収容凹部５ｂに配置されて受口５の周方向に延びるリング状またはＣリング状の爪体基部８ｂと、その爪体基部８ｂの内側から延出する複数の前記係止爪８ａ、８ａとからなる。 Specifically, the connection body 3 includes a locking claw body 8 in the receiving port 5. The locking claw body 8 includes a ring-shaped or C-ring-shaped claw body base portion 8b that is disposed in the housing recess 5b provided on the inner surface of the receiving port 5 and extends in the circumferential direction of the receiving port 5, and the claw body base portion. It consists of a plurality of the locking claws 8a, 8a extending from the inside of 8b.

また、受口５は、受口本体６と、その受口本体６とは別体であってその受口本体６に着脱可能に組み付けられる保持体７とを備えている。そして、前記収容凹部５ｂは、受口本体６に設けられて受口５の口元側を向く第１対向面６ａと、保持体７に設けられて受口５の奥側を向き第１対向面６ａと対向する第２対向面７ａとの間に形成される。つまり、受口５は、その軸方向において、収容凹部５ｂ部分で分割されている。 The receiving port 5 includes a receiving body 6 and a holding body 7 that is separate from the receiving body 6 and is detachably assembled to the receiving body 6. And the said accommodation recessed part 5b is provided in the receptacle main body 6, the 1st opposing surface 6a which faces the mouth side of the receptacle 5, and the 1st opposing surface which is provided in the holding body 7 and faces the back | inner side of the receptacle 5 It is formed between 6a and the 2nd opposing surface 7a which opposes. That is, the receiving port 5 is divided at the receiving recess 5b in the axial direction.

具体的には、接続体３は、電線管連結具３０１（電線管用の継手）からなる。この電線管連結具３０１における本体４は、Ｔ字形状を形成するように延びる筒からなり、その筒の各先端から延出するようにして、前記受口５が設けられる。ここで、本体４と、受口５を構成する前記受口本体６とは、例えば合成樹脂材料により一体に形成される。 Specifically, the connection body 3 is composed of a conduit coupling tool 301 (a joint for a conduit). The main body 4 in the conduit connector 301 is formed of a tube extending so as to form a T shape, and the receiving port 5 is provided so as to extend from each tip of the tube. Here, the main body 4 and the receiving port body 6 constituting the receiving port 5 are integrally formed of, for example, a synthetic resin material.

受口本体６は、筒状に形成されて、その内側が、硬質塩化ビニル電線管１の端部が挿入される、受口本体６側の挿入部６ｂとなる。そして、電線管連結具３０１は、受口本体６側の挿入部６ｂよりも奥側が径小となるように形成されて、その境界の段部が、前記制止部５ａとなる。また、受口本体６の先端面は、前記第１対向面６ａとなる。また、受口本体６側の挿入部６ｂの口元部分（つまり、受口５の内面であって、収容凹部５ｂの奥方）には、硬質塩化ビニル電線管１が挿入された際の係止爪８ａの傾動を許容する逃がし凹部６ｃが設けられている。この逃がし凹部６ｃは、係止爪８ａが、硬質塩化ビニル電線管１の軸方向（つまり、受口５の軸方向）にほぼ沿うまでに傾いた場合にも、その係止爪８ａを収容可能となるように形成されている。そこで、特に図示実施の形態においては、係止爪８ａは、硬質塩化ビニル電線管１の軸方向にほぼ沿った状態で、その硬質塩化ビニル電線管１の外面を係止する（図３参照）。また、受口本体６の外面には、その周に沿って、当接部としての鍔部６ｄが設けられ、その鍔部６ｄと、受口本体６の先端との間には、雄ねじ６ｅが形成されている。 The receptacle body 6 is formed in a cylindrical shape, and the inside thereof becomes an insertion portion 6b on the receptacle body 6 side into which the end of the rigid polyvinyl chloride conduit 1 is inserted. And the conduit connector 301 is formed so that the back side is smaller in diameter than the insertion portion 6b on the receiving body 6 side, and the stepped portion at the boundary becomes the restraining portion 5a. Further, the front end surface of the receiving body 6 is the first facing surface 6a. Further, a locking claw when the rigid polyvinyl chloride conduit tube 1 is inserted into the mouth portion of the insertion portion 6b on the receiving body 6 side (that is, the inner surface of the receiving port 5 and behind the housing recess 5b). An escape recess 6c that allows tilting of 8a is provided. The relief recess 6c can accommodate the locking claw 8a even when the locking claw 8a is inclined substantially along the axial direction of the rigid polyvinyl chloride conduit 1 (that is, the axial direction of the receiving port 5). It is formed to become. Therefore, particularly in the illustrated embodiment, the locking claw 8a locks the outer surface of the rigid polyvinyl chloride conduit 1 in a state substantially along the axial direction of the rigid polyvinyl chloride conduit 1 (see FIG. 3). . Further, a flange portion 6d as a contact portion is provided on the outer surface of the receptacle body 6 along the circumference thereof, and a male screw 6e is provided between the collar portion 6d and the tip of the receptacle body 6. Is formed.

この受口本体６に組み付けられる保持体７は、例えば、合成樹脂材料により形成される。この保持体７は、筒状に形成され、その前端部分（つまり、受口５の口元部分）の内側が、硬質塩化ビニル電線管１の端部が挿入される、保持体７側の挿入部７ｂとなる。そして、この保持体７側の挿入部７ｂには、後述するパッキン９が設けられる。また、保持体７は、保持体７側の挿入部７ｂよりも後方側（つまり、受口５の奥側）が、径大となるように形成されて、その境界の段部面が、前記第２対向面７ａとなる。また、保持体７側の挿入部７ｂよりも後方側には、雌ねじ７ｃが形成され、この雌ねじ７ｃが、受口本体６における雄ねじ６ｅと螺合することで、保持体７は、受口本体６に対し、受口５の軸方向に螺進退可能に螺着される。そして、保持体７は、後方側の端部７ｄが、受口本体６の鍔部６ｄに当接することで、受口５の軸方向に対し位置決めされる。 The holding body 7 assembled to the receiving body 6 is made of, for example, a synthetic resin material. This holding body 7 is formed in a cylindrical shape, and the inside of the front end portion (that is, the mouth portion of the receiving port 5) is inserted into the end of the rigid polyvinyl chloride conduit 1. 7b. And the packing 9 mentioned later is provided in the insertion part 7b by the side of this holding body 7. FIG. Further, the holding body 7 is formed so that the rear side (that is, the back side of the receiving port 5) is larger in diameter than the insertion portion 7b on the holding body 7 side, and the stepped surface of the boundary is It becomes the 2nd opposing surface 7a. Further, a female screw 7c is formed on the rear side of the insertion portion 7b on the holding body 7 side, and the female screw 7c is screwed with the male screw 6e in the receiving body 6 so that the holding body 7 is connected to the receiving body. 6 is screwed so as to be able to advance and retract in the axial direction of the receiving port 5. The holding body 7 is positioned with respect to the axial direction of the receiving port 5 by the end 7d on the rear side coming into contact with the flange portion 6d of the receiving port body 6.

また、受口５の内径は、制止部５ａに達する奥端（つまり、受口本体６側の挿入部６ｂの奥端）が最も小径であって、かつ、奥端の内径５ｃが、硬質塩化ビニル電線管１の外径１ａ（好ましくは、寸法誤差を含めた最大外径）と同一またはその外径１ａよりも大となるように形成される。 Further, the inner diameter of the receiving port 5 is the smallest diameter at the back end (that is, the back end of the insertion portion 6b on the receiving port body 6 side) reaching the restraining portion 5a, and the inner diameter 5c at the back end is hard chloride. It is formed so as to be the same as or larger than the outer diameter 1a (preferably the maximum outer diameter including dimensional error) of the vinyl conduit 1.

そして、収容凹部５ｂにおいては、係止爪体８が受口５の径方向に移動可能となるよう、その収容凹部５ｂの幅（つまり、受口５の軸方向における幅）が爪体基部８ｂの厚さよりも大きく形成され、かつ、爪体基部８ｂの外側に遊び空間５ｄを有するように形成される。 And in the accommodation recessed part 5b, the width | variety of the accommodation recessed part 5b (namely, width in the axial direction of the receiving port 5) is the nail body base part 8b so that the latching claw body 8 can move to the radial direction of the receiving port 5. And a play space 5d is formed outside the nail base 8b.

また、受口５には、硬質塩化ビニル電線管１との間を密封するパッキン９が設けられる。図示実施の形態においては、パッキン９は、受口５の口元部分（つまり、保持体７の先端部分）の内側に嵌められるようにして配置される。このパッキン９は、Ｖ字状に折り返されるように形成されており、その内側の片が、硬質塩化ビニル電線管１の外面を圧接する。 In addition, the receiving port 5 is provided with a packing 9 that seals between the rigid polyvinyl chloride conduit 1. In the illustrated embodiment, the packing 9 is disposed so as to be fitted inside the mouth portion of the receiving port 5 (that is, the tip portion of the holding body 7). The packing 9 is formed so as to be folded back in a V shape, and an inner piece presses the outer surface of the hard polyvinyl chloride conduit 1.

係止爪体８は、例えば、鋼板とか銅合金板等のバネ性を有する金属板材からなる。この係止爪体８における爪体基部８ｂは、リング状に形成され、特に、図示実施の形態においては、その全周が繋がって形成されている。そして、爪体基部８ｂから延出する係止爪８ａは、複数が、爪体基部８ｂの内側において、周方向に、間隔をあけて均等に並ぶように設けられる。そして、各係止爪８ａは、先端側ほど幅狭となる、台形形状に形成されている。もっとも、複数の係止爪８ａ、８ａは、間隔をあけて並ばなくとも、密接して並んでもよい。また、係止爪８ａは、台形形状に形成されなくとも、先端が尖るように形成されてもよい。 The locking claw body 8 is made of, for example, a metal plate material having spring properties such as a steel plate or a copper alloy plate. The claw base portion 8b of the locking claw body 8 is formed in a ring shape, and in particular, in the illustrated embodiment, the entire circumference is connected. A plurality of locking claws 8a extending from the claw body base portion 8b are provided so as to be evenly arranged at intervals in the circumferential direction inside the claw body base portion 8b. And each latching claw 8a is formed in the trapezoid shape which becomes narrow as the front end side. However, the plurality of locking claws 8a, 8a may be arranged closely without being spaced apart. Further, the locking claw 8a may be formed so as to have a sharp tip without being formed in a trapezoidal shape.

次に、以上の構成からなる電線管連結具３０１（接続体３）の作用効果について説明する。この電線管連結具３０１によると、硬質塩化ビニル電線管１が挿入される受口５には、その受口５の周方向に沿って、係止爪８ａが複数、配置される。ここにおいて、係止爪８ａは、受口５の内方かつ奥方へ向けて傾斜するように突出しており、この係止爪８ａが、受口５に挿入される硬質塩化ビニル電線管１の移動に伴って、受口５の奥方へと倒れるように傾動することで、硬質塩化ビニル電線管１は、その挿入が阻止されることなく、受口５に進入する。そして、硬質塩化ビニル電線管１は、受口５の奥方の制止部５ａに当たることで、その挿入が完了する。反対に、硬質塩化ビニル電線管１の、受口５からの抜け出に対しては、係止爪８ａが硬質塩化ビニル電線管１の外面を係止することで、その抜け出が規制される。こうして、硬質塩化ビニル電線管１は、接着の必要もなく、電線管連結具３０１の受口５に接続される。すなわち、この電線管連結具３０１（接続体３）によれば、硬質塩化ビニル電線管１を受口５に接続するにあたって、係止爪８ａを用いることで、接着の必要がなくなり、その硬質塩化ビニル電線管１を、簡単に接続することができる。 Next, the effect of the conduit connector 301 (connection body 3) which consists of the above structure is demonstrated. According to this conduit connector 301, a plurality of locking claws 8 a are arranged along the circumferential direction of the receptacle 5 in the receptacle 5 into which the rigid polyvinyl chloride conduit 1 is inserted. Here, the locking claw 8 a protrudes so as to incline toward the inner side and the inner side of the receiving port 5, and the locking claw 8 a moves the rigid polyvinyl chloride conduit 1 inserted into the receiving port 5. Accordingly, the hard vinyl chloride conduit tube 1 enters the receiving port 5 without being prevented from being inserted by tilting so as to fall to the back of the receiving port 5. And the insertion of the hard vinyl chloride conduit tube 1 is completed when it hits the stop part 5a at the back of the receiving port 5. On the contrary, when the hard vinyl chloride conduit 1 is pulled out from the receiving port 5, the locking claw 8 a locks the outer surface of the hard polyvinyl chloride conduit 1, so that the pull-out is regulated. Thus, the rigid polyvinyl chloride conduit 1 is connected to the receptacle 5 of the conduit connector 301 without the need for adhesion. That is, according to this conduit connector 301 (connector 3), when the hard vinyl chloride conduit tube 1 is connected to the receiving port 5, the use of the locking claw 8a eliminates the need for adhesion, and the hard chloride The vinyl conduit 1 can be easily connected.

また、受口５には、前記係止爪８ａ、８ａが、爪体基部８ｂの内側から延出して形成された、係止爪体８が設けられている。ここで、硬質塩化ビニル電線管１を受口５に挿入していくと、硬質塩化ビニル電線管１の端面は、係止爪体８の内側から内方かつ奥方へと傾斜するように突出する係止爪８ａ、８ａに当たる。このとき、爪体基部８ｂが配置される収容凹部５ｂは、その幅（つまり、受口５の軸方向における幅）が爪体基部８ｂの厚さよりも大きく、かつ、爪体基部８ｂの外側（つまり、係止爪体８の外側）に遊び空間５ｄを有することから、受口５に挿入された硬質塩化ビニル電線管１の外径１ａと係止爪体８の内径との軸心がずれている場合であっても、その軸心が合うように係止爪体８が移動する。これにより、硬質塩化ビニル電線管１が挿入される受口５および係止爪体８の寸法精度を、それほど高くしなくとも、硬質塩化ビニル電線管１と係止爪体８との軸心を合わせることができ、硬質塩化ビニル電線管１に対して、複数の係止爪８ａ、８ａを均等に係止させることができる。また、これによって、係止爪８ａ、８ａに過剰な力がかかることを抑えることができ、この電線管連結具３０１を長く使うことができる。 The receiving mouth 5 is provided with a locking claw body 8 in which the locking claws 8a, 8a are formed extending from the inside of the claw body base portion 8b. Here, when the rigid polyvinyl chloride conduit 1 is inserted into the receiving port 5, the end surface of the rigid polyvinyl chloride conduit 1 protrudes from the inside of the locking claw body 8 to the inside and to the back. It hits the locking claws 8a, 8a. At this time, the accommodating recess 5b in which the nail body base portion 8b is arranged has a width (that is, a width in the axial direction of the receiving port 5) larger than the thickness of the nail body base portion 8b and the outside of the nail body base portion 8b ( That is, since the play space 5d is provided on the outer side of the latching claw body 8), the axial centers of the outer diameter 1a of the hard polyvinyl chloride conduit 1 inserted into the receiving port 5 and the inner diameter of the latching claw body 8 are shifted. Even if it is a case, the latching nail | claw body 8 moves so that the axial center may match. Thereby, the axial center of the hard vinyl chloride conduit tube 1 and the locking claw body 8 can be adjusted without increasing the dimensional accuracy of the receiving port 5 and the locking claw body 8 into which the rigid polyvinyl chloride conduit tube 1 is inserted. The plurality of locking claws 8a, 8a can be evenly locked to the rigid polyvinyl chloride conduit 1. Moreover, it can suppress that excessive force is applied to the latching claws 8a and 8a by this, and this conduit connector 301 can be used for a long time.

また、受口５の内径は、制止部５ａに達する奥端が最も小径であって、かつ、その奥端の内径５ｃが、硬質塩化ビニル電線管１の外径１ａと同一またはその外径１ａよりも大となるよう形成されている。これは、硬質塩化ビニル電線管１を受口５に接着により接続する場合には、硬質塩化ビニル電線管１と受口５の内面との密着性を高める必要があることから、受口５の奥側で圧入気味となるように受口５の内径の寸法を設定する必要があるのに対して、この係止爪８ａを用いた接続においては、その必要がないことによる。そして、このように、受口５の内径を設定することで、硬質塩化ビニル電線管１を受口５に、大きな力を要せず、かつ、確実に挿入することができ、その硬質塩化ビニル電線管１を、受口５に一層簡単に接続することができる。 Further, the inner diameter of the receiving port 5 is the smallest at the far end reaching the restraining portion 5a, and the inner diameter 5c at the far end is the same as the outer diameter 1a of the rigid polyvinyl chloride conduit 1, or its outer diameter 1a. It is formed so as to be larger than. This is because, when the rigid polyvinyl chloride conduit 1 is connected to the receptacle 5 by adhesion, it is necessary to improve the adhesion between the rigid polyvinyl chloride conduit 1 and the inner surface of the receptacle 5, so This is because the size of the inner diameter of the receiving port 5 needs to be set so as to make a press fit on the back side, but this is not necessary in the connection using the locking claw 8a. And by setting the inner diameter of the receiving port 5 in this way, the hard vinyl chloride conduit tube 1 can be securely inserted into the receiving port 5 without requiring a large force. The conduit 1 can be more easily connected to the receiving port 5.

また、受口５が、保持体７を備えることで、収容凹部５ｂの形成が容易となり、また、受口本体６に保持体７を組み付ける際に、受口本体６（詳しくは、第１対向面６ａ）と保持体７（詳しくは、第２対向面７ａ）との間に係止爪体８の爪体基部８ｂを差し入れるようにすれば、この係止爪体８を収容凹部５ｂ部分に簡単に配置することができる。そして、硬質塩化ビニル電線管１が接続されている受口５に対し、受口本体６から保持体７を外すことで、硬質塩化ビニル電線管１を、係止爪体８が付いた状態で、受口本体６から取り出すことができる。そこで、硬質塩化ビニル電線管１の、係止爪体８が付いた端部部分を切除することで、残りの部分を再利用することができ、また、電線管連結具３０１においても、係止爪体８を除き、再利用することができる。もっとも、係止爪体８においても、その係止爪体８を、硬質塩化ビニル電線管１の端部部分から、切断側に抜き取ることができ、抜き取った係止爪体８に破損がなければ、その係止爪体８を再利用することができる。 In addition, since the receiving port 5 includes the holding body 7, it is easy to form the housing recess 5 b, and when the holding body 7 is assembled to the receiving port body 6, the receiving port body 6 (specifically, the first opposing surface). If the nail body base portion 8b of the latching claw body 8 is inserted between the surface 6a) and the holding body 7 (specifically, the second opposing surface 7a), the latching claw body 8 is part of the housing recess 5b. Can be easily arranged. Then, by removing the holding body 7 from the receiving body 6 with respect to the receiving port 5 to which the hard vinyl chloride conduit tube 1 is connected, the rigid polyvinyl chloride conduit tube 1 is attached with the locking claw body 8. It can be taken out from the receptacle body 6. Therefore, by cutting off the end portion of the rigid polyvinyl chloride conduit 1 with the locking claw body 8, the remaining portion can be reused. The nail body 8 can be removed and reused. However, also in the latching claw body 8, the latching claw body 8 can be extracted from the end portion of the hard polyvinyl chloride conduit tube 1 to the cutting side, and if the extracted latching claw body 8 is not damaged. The locking claw body 8 can be reused.

なお、本発明は、上述した実施の形態に限定されるわけではなく、その他種々の変更が可能である。例えば、接続体３は、電線管連結具３０１でなくとも、図６に示すように、配線ボックス３０２であってもよい。ここにおいて、配線ボックス３０２は、底壁４ａとその底壁４ａから立設する周壁４ｂとを有して、内部の空間４ｃに導かれた電線が結線または分岐されあるいは配線器具に接続される、本体４と、その本体４内に通ずる受口５とを備えている。そして、前述したように、受口５に、内外面が平滑な硬質塩化ビニル電線管１の端部が挿入されて接続される。 In addition, this invention is not necessarily limited to embodiment mentioned above, A various other change is possible. For example, the connection body 3 may be a wiring box 302 as shown in FIG. Here, the wiring box 302 has a bottom wall 4a and a peripheral wall 4b erected from the bottom wall 4a, and an electric wire led to the internal space 4c is connected or branched or connected to a wiring device. A main body 4 and a receiving port 5 communicating with the main body 4 are provided. As described above, the end portion of the rigid polyvinyl chloride conduit 1 having a smooth inner and outer surface is inserted and connected to the receiving port 5.

また、接続体３は、図７に示すように、電線管端末キャップ３０３であってもよい。この電線管端末キャップ３０３は、エントランスキャップとかターミナルキャップとか呼ばれるたぐいのものである。この電線管端末キャップ３０３は、電線を屈曲配線する内部空間４ｄを有するとともに、その内部空間４ｄから電線を引き出す引出口４ｅを１つまたは複数備えた、本体４と、その本体４内に通ずる受口５とを備えている。そして、前述したように、受口５に、内外面が平滑な硬質塩化ビニル電線管１の端部が挿入されて接続される。 Moreover, the connection body 3 may be a conduit end cap 303 as shown in FIG. The conduit end cap 303 is a type called an entrance cap or a terminal cap. The conduit end cap 303 has an inner space 4d for bending and wiring the electric wire, and has one or more outlets 4e for drawing out the electric wires from the inner space 4d, and a receptacle that communicates with the main body 4. It has a mouth 5. As described above, the end portion of the rigid polyvinyl chloride conduit 1 having a smooth inner and outer surface is inserted and connected to the receiving port 5.

また、接続体３は、図８に示すように、電線管連結具３０１としての屈曲配線経路形成具３０４であってもよい。この屈曲配線経路形成具３０４は、ノーマルベンドと呼ばれるたぐいのものであり、中空筒状の本体４と、その本体４の両端に設けられてその本体４内に通ずる受口５とを備えている。そして、受口５の開口方向が互いに直角となるように本体４が硬質合成樹脂により湾曲状態を維持して形成される。そして、前述したように、受口５に、内外面が平滑な硬質塩化ビニル電線管１の端部が挿入されて接続される。 Moreover, the connection body 3 may be a bent wiring path forming tool 304 as a conduit coupling tool 301 as shown in FIG. The bent wiring path forming tool 304 is a so-called normal bend, and includes a hollow cylindrical main body 4 and receiving ports 5 provided at both ends of the main body 4 and leading into the main body 4. . Then, the main body 4 is formed of a hard synthetic resin while maintaining a curved state so that the opening directions of the receiving ports 5 are perpendicular to each other. As described above, the end portion of the rigid polyvinyl chloride conduit 1 having a smooth inner and outer surface is inserted and connected to the receiving port 5.

また、接続体３は、電線管連結具３０１とか配線ボックス３０２とか電線管端末キャップ３０３とか屈曲配線経路形成具３０４とかに限るものではなく、内外面が平滑な硬質塩化ビニル電線管１が接続される受口５を備えるものであれば、どのようなものでもよい。 The connecting body 3 is not limited to the conduit connector 301, the wiring box 302, the conduit terminal cap 303, or the bent wiring path forming tool 304, and the rigid polyvinyl chloride conduit tube 1 having a smooth inner and outer surface is connected thereto. Any device may be used as long as it has the receiving port 5.

また、係止爪体８における爪体基部８ｂは、その全周が繋がって形成されなくとも、その周方向の一部が分断されて（図９参照）、その分断部分８ｃを広げるように爪体基部８ｂを強制的に変形させることで係止爪８ａを硬質塩化ビニル電線管１から離して係止爪体８を硬質塩化ビニル電線管１から取り外し可能となってもよい。これにより、硬質塩化ビニル電線管１が接続されている受口５に対し、受口本体６から保持体７を外し、硬質塩化ビニル電線管１を、係止爪体８が付いた状態で、受口本体６から取り出し、さらに、爪体基部８ｂの分断部分８ｃを広げて、係止爪８ａを硬質塩化ビニル電線管１から離して係止爪体８を硬質塩化ビニル電線管１から取り外すことができる。このため、この硬質塩化ビニル電線管１を、端部部分を切断することなく、再利用することができ、また、接続体３においても、係止爪体８を除き、再利用することができる。もっとも、係止爪体８においても、破損がなければ再利用することができる。なお、爪体基部８ｂの分断部分８ｃは、図９においては、その分断部分８ｃの各端が互いに離れることで、爪体基部８ｂがＣリング状となっているが、分断部分８ｃの各端が互いに接触して形成されてもよい。また、この図９においては、分断部分８ｃの各端が僅かに離れているが（すなわち、分断部分８ｃがスリット８ｄによって形成されているが）、分断部分８ｃの各端が大きく離れていても構わない。 Further, the claw body base portion 8b in the locking claw body 8 is not formed by connecting all the circumferences thereof, but a part of the circumferential direction is divided (see FIG. 9), and the claw body 8b is widened. The locking claw 8a may be separated from the hard vinyl chloride conduit 1 by forcibly deforming the body base 8b, and the locking claw 8 may be removable from the rigid polyvinyl chloride conduit 1. Thereby, with respect to the receiving port 5 to which the hard polyvinyl chloride electric conduit 1 is connected, the holding body 7 is removed from the receiving main body 6, and the hard vinyl chloride electric conduit 1 is attached with the locking claw body 8. Taking out from the receptacle body 6, and further expanding the divided portion 8 c of the claw base 8 b, separating the locking claw 8 a from the rigid polyvinyl chloride conduit 1 and removing the locking claw 8 from the rigid polyvinyl chloride conduit 1. Can do. For this reason, this rigid polyvinyl chloride conduit tube 1 can be reused without cutting the end portion, and the connecting body 3 can be reused except for the locking claw body 8. . However, the locking claw body 8 can be reused if it is not damaged. In FIG. 9, the divided portion 8c of the nail body base 8b has a C-ring shape because the ends of the divided portion 8c are separated from each other. However, each end of the divided portion 8c May be formed in contact with each other. Further, in FIG. 9, each end of the divided portion 8c is slightly separated (that is, the divided portion 8c is formed by the slit 8d), but each end of the divided portion 8c is greatly separated. I do not care.

また、図１０に示すように、受口５には、その受口５の内面と、挿入された硬質塩化ビニル電線管１の外面との間に、硬質塩化ビニル電線管１を係止している係止爪８ａを押して受口５の奥方に傾動させるための係止解除部材１０を差込み可能な、差込み空間５ｅが設けられてもよい。こうして、硬質塩化ビニル電線管１が接続された受口５に対し、係止解除部材１０を、差込み空間５ｅに差し込んで、受口５の奥方へと進めることで、その係止解除部材１０で、係止爪８ａを押して受口５の奥方へ傾動させることができ、これによって、硬質塩化ビニル電線管１への係止爪８ａの係止を解除することができる。したがって、この係止解除部材１０を受口５の奥方へと進めた状態で、硬質塩化ビニル電線管１を引けば、その硬質塩化ビニル電線管１を受口５から取り出すことができる。図示実施の形態においては、係止解除部材１０は、筒状に形成されて、予め、差込み空間５ｅに差し込まれている。そこで、受口５の口元から外部に突出する係止解除部材１０の端部１０ａを押し込むことで、この係止解除部材１０は、受口５の奥方へと進み、その係止解除部材１０の進む側の端部１０ｂ（つまり、奥側の端部）が、係止爪８ａを押して、その係止爪８ａの硬質塩化ビニル電線管１への係止を解除する。もっとも、係止解除部材１０は、予め、受口５の差込み空間５ｅに差し込まれていなくとも、係止を解除する際に、差込み空間５ｅに差し込まれてもよい。また、係止解除部材１０は、予め差込み空間５ｅに埋設された解除部材本体と、その解除部材本体を受口５の奥方へと押し進める、解除部材本体とは別体の解除具とから構成されてもよい。 As shown in FIG. 10, the hard vinyl chloride conduit 1 is engaged with the receiving port 5 between the inner surface of the receiving port 5 and the outer surface of the inserted hard vinyl chloride conduit tube 1. An insertion space 5e into which the locking release member 10 for tilting the locking claw 8a being pushed and tilted to the back of the receiving port 5 can be inserted may be provided. In this way, by inserting the locking release member 10 into the insertion space 5e with respect to the receiving port 5 to which the rigid polyvinyl chloride conduit tube 1 is connected, the locking release member 10 is advanced to the back of the receiving port 5 so that the locking release member 10 The locking claw 8a can be pushed and tilted to the back of the receiving port 5, whereby the locking claw 8a can be unlocked from the rigid polyvinyl chloride conduit 1. Accordingly, if the hard vinyl chloride cable tube 1 is pulled in a state where the locking release member 10 is advanced to the back of the receiving port 5, the hard polyvinyl chloride cable tube 1 can be taken out from the receiving port 5. In the illustrated embodiment, the lock release member 10 is formed in a cylindrical shape and is inserted in the insertion space 5e in advance. Therefore, by pushing the end portion 10a of the unlocking member 10 protruding outward from the mouth of the receiving port 5, the unlocking member 10 advances to the back of the receiving port 5, and the locking releasing member 10 The advancing end 10b (that is, the back end) pushes the locking claw 8a to release the locking of the locking claw 8a to the rigid polyvinyl chloride conduit 1. However, even if the locking release member 10 is not inserted into the insertion space 5e of the receiving port 5 in advance, it may be inserted into the insertion space 5e when releasing the locking. Further, the locking release member 10 includes a release member main body embedded in the insertion space 5e in advance, and a release tool separate from the release member main body that pushes the release member main body toward the back of the receiving port 5. May be.

また、保持体７は、受口本体６に対し、受口５の軸方向に螺進退可能に螺着されるが、この保持体７を受口５の奥方へ螺進させることにより、受口本体６の第１対向面６ａと保持体７の第２対向面７ａとで爪体基部８ｂを挟持可能としてもよい。上述した一実施の形態においては、受口本体６に設けられる鍔部６ｄを控えて位置させることで、受口本体６と保持体７とで（詳しくは、第１対向面６ａと第２対向面７ａとで）、爪体基部８ｂを挟持可能とすることができる。これにより、硬質塩化ビニル電線管１を受口５に挿入した後に、保持体７を受口５の奥方へ螺進させるようにして締め付けて、爪体基部８ｂを挟持することで、硬質塩化ビニル電線管１をがたつき無く受口５に接続することができる。ここにおいて、係止爪体８が受口５の径方向に移動可能となる、爪体基部８ｂが挟持される手前の位置で、受口本体６に対する保持体７の螺進が、一旦止まるように、受口本体６と保持体７との間に、節度を付与する節度手段を設けるのが好ましい。この節度手段としては、受口本体６の鍔部６ｄと保持体７の後方側の端部７ｄとの間に、スプリングワッシャとかパッキン等の弾性部材を介在させたり、爪体基部８ｂが挟持される手前の位置から、受口本体６に対して保持体７が圧入されるような構造を設けたりすることが考えられる。 In addition, the holding body 7 is screwed to the receiving body 6 so as to be able to be screwed back and forth in the axial direction of the receiving opening 5. The nail body base 8b may be clamped between the first facing surface 6a of the main body 6 and the second facing surface 7a of the holding body 7. In the above-described embodiment, the hook body 6d provided on the receiving body 6 is positioned so as to be positioned between the receiving body 6 and the holding body 7 (specifically, the first facing surface 6a and the second facing surface). The nail base 8b can be clamped with the surface 7a. Thus, after inserting the rigid polyvinyl chloride conduit 1 into the receiving port 5, the holder 7 is tightened so as to be screwed inwardly of the receiving port 5, and the nail body base portion 8 b is sandwiched, whereby the hard vinyl chloride is clamped. The conduit 1 can be connected to the receiving port 5 without rattling. Here, the screwing of the holding body 7 with respect to the receiving body 6 temporarily stops at a position just before the nail body base 8b is sandwiched so that the locking claw body 8 can move in the radial direction of the receiving hole 5. Further, it is preferable that a moderation means for providing moderation is provided between the receiving body 6 and the holding body 7. As the moderation means, an elastic member such as a spring washer or packing is interposed between the flange portion 6d of the receiving body 6 and the rear end portion 7d of the holding body 7, or a claw body base portion 8b is sandwiched. It is conceivable to provide a structure in which the holding body 7 is press-fitted into the receiving body 6 from a position on the front side.

また、収容凹部５ｂは、爪体基部８ｂがその内周側ほど受口５の奥方へ変位するようにたわみ変形可能となるよう、その収容凹部５ｂの幅が爪体基部８ｂの厚さよりも大きく形成されてもよい。ここで、前述した一実施の形態においては、係止爪体８が受口５の径方向に移動可能となればよいが、ここにおいては、爪体基部８ｂがその内周側ほど受口５の奥方へ変位するようにたわみ変形可能となる程度まで、収容凹部５ｂの幅が爪体基部８ｂの厚さよりも大きく形成される必要がある。もっとも、爪体基部８ｂがその内周側ほど受口５の奥方へ変位するようにたわみ変形可能となる限りにおいて、爪体基部８ｂの外縁と対応する部分の収容凹部５ｂの幅は、その外縁を挟持するまで小さく形成されても構わない。この構成により、硬質塩化ビニル電線管１を受口５に挿入し、その硬質塩化ビニル電線管１が係止爪８ａを押すと、爪体基部８ｂは、その内周側ほど受口５の奥方へ変位するようにたわむ。こうして、爪体基部８ｂがたわむことから、受口５に挿入される硬質塩化ビニル電線管１の移動に伴って、係止爪８ａは、容易に受口の奥方へと傾動し、これによって、硬質塩化ビニル電線管１を、受口５に、容易に挿入することができる。 The accommodating recess 5b has a width larger than the thickness of the nail body base 8b so that the nail body base 8b can be flexibly deformed so that the nail body base 8b is displaced toward the inner side of the receiving port 5. It may be formed. Here, in the above-described embodiment, it is only necessary that the locking claw body 8 is movable in the radial direction of the receiving port 5, but here, the claw body base portion 8 b is closer to the inner peripheral side thereof. The width of the housing recess 5b needs to be larger than the thickness of the nail base 8b to the extent that it can be flexibly deformed so as to be displaced inward. However, as long as the nail body base 8b can be flexibly deformed so that the inner circumference side is displaced toward the back of the receiving port 5, the width of the housing recess 5b corresponding to the outer edge of the nail body base 8b is the outer edge thereof. It may be formed small until it is sandwiched. With this configuration, when the rigid polyvinyl chloride conduit 1 is inserted into the receptacle 5, and the rigid polyvinyl chloride conduit 1 presses the locking claw 8a, the claw body base portion 8b is located at the back of the receptacle 5 toward the inner peripheral side. Bend to displace. Thus, since the claw body base 8b bends, the locking claw 8a easily tilts toward the back of the receiving port as the hard vinyl chloride conduit tube 1 inserted into the receiving port 5 moves. The rigid polyvinyl chloride conduit 1 can be easily inserted into the receiving port 5.

また、保持体７は、受口本体６に対し、螺着されなくとも、例えば、受口本体６を、係止爪体８を内部に収めるまで延出し、その受口本体６内に保持体７を挿入し、受口５の軸方向と直交する方向において受口本体６を貫通するようなピンを着脱可能に設けて、そのピンで保持体７を抜け止めするようにしてもよい。 Even if the holding body 7 is not screwed to the receiving body 6, for example, the receiving body 6 is extended until the locking claw body 8 is accommodated therein, and the holding body is placed in the receiving body 6. 7 may be inserted, and a pin that penetrates the receptacle body 6 in a direction orthogonal to the axial direction of the receptacle 5 may be detachably provided, and the holding body 7 may be prevented from coming off with the pin.

また、本体４と受口本体６とは、一体に形成されなくとも（つまり、一部品からならなくとも）、別体に形成されて、それら本体４と受口本体６とが、例えば接着により一体化されてもよい。 Further, the main body 4 and the receiving body 6 are not formed integrally (that is, not formed of one component), but are formed separately, and the main body 4 and the receiving body 6 are bonded to each other by, for example, bonding. It may be integrated.

また、受口５は、受口本体６と保持体７とで構成されるように、その軸方向において分割されなくとも、その径方向おいて分割、例えば半割りにされて、それらが組み付けられるものであってもよい。また、この径方向における分割は、受口５のみであっても、本体４を含めて分割されてもよい。 Further, the receptacle 5 is constituted by the receptacle body 6 and the holding body 7, but is not divided in the axial direction, but is divided in the radial direction, for example, divided in half, and they are assembled. It may be a thing. Further, the division in the radial direction may be performed only on the receiving port 5 or on the main body 4.

また、受口５は、受口本体６と保持体７とで構成されなくとも、一体に形成されていてもよい。ここで、収容凹部５ｂ部分への係止爪体８の配置は、例えば、係止爪体８（爪体基部８ｂ）をＣリング状とし、その係止爪体８を、Ｃリング形状の両端を近づけるように縮径させて受口５内に挿入し、収容凹部５ｂ部分で、その縮径した係止爪体８を元に戻すようにしてもよい。 Further, the receiving port 5 may not be formed by the receiving body 6 and the holding body 7 but may be integrally formed. Here, the arrangement of the latching claw body 8 in the housing recess 5b portion is, for example, that the latching claw body 8 (claw body base 8b) has a C-ring shape, and the latching claw body 8 has both ends of the C-ring shape. The diameter of the engaging claw body 8 having the reduced diameter may be returned to the original position at the receiving recess 5b.

また、収容凹部５ｂは、その幅が爪体基部８ｂの厚さよりも大きく形成されたり、爪体基部８ｂの外側に遊び空間５ｄを有するように形成されたりしているが、爪体基部８ｂが収容凹部５ｂに密着して配置されてもよい。そして、この場合には、複数の係止爪８ａ、８ａが、爪体基部８ｂを介して一体となっていなくとも、個々の係止爪８ａ、８ａがばらばらとなるよう爪体基部８ｂが分割されてもよい。 The accommodating recess 5b is formed to have a width larger than the thickness of the nail base 8b or to have a play space 5d outside the nail base 8b. You may arrange | position closely_contact | adhere to the accommodation recessed part 5b. In this case, the claw body base 8b is divided so that the individual claw 8a and 8a are separated even if the plurality of locking claws 8a and 8a are not integrated via the claw body base 8b. May be.

また、受口５の内面には、係止爪８ａの傾動する側に、その係止爪８ａに当接して、係止爪８ａの傾動を所定の範囲に制限する、傾動規制部が設けられてもよい。 In addition, on the inner surface of the receiving port 5, a tilt restricting portion is provided on the tilting side of the locking claw 8 a so as to abut against the locking claw 8 a and limit the tilting of the locking claw 8 a to a predetermined range. May be.

また、受口５には、パッキン９が、係止爪８ａよりも手前に設けられるが、このパッキン９は、係止爪８ａよりも奥側に設けられてもよい。また、このパッキン９は、設けられなくともよい。 Moreover, although the packing 9 is provided in the near side rather than the latching claw 8a in this receptacle 5, this packing 9 may be provided in the back | inner side rather than the latching claw 8a. Further, the packing 9 may not be provided.

また、接続体３としての配線ボックス３０２は、受口５を１つ備えるが、複数備えるようにしてもよい。 Moreover, although the wiring box 302 as the connection body 3 includes one receiving port 5, a plurality of receiving ports 5 may be provided.

また、接続体３は、受口５を１つ備えたり、複数備えたりするが、複数備える場合には、それら受口５の全てに、係止爪８ａが設けられなくとも、いずれか１つの受口５に設けられればよい。特に、接続体３が、電線管連結体３０１とか屈曲配線経路形成具３０４である場合には、受口５は、必ず複数となるが、この際、それら受口５のうちの少なくとも１つの特定受口に、係止爪８ａが設けられればよい。 In addition, the connection body 3 includes one or more receiving ports 5, but when there are a plurality of receiving ports 5, any one of the receiving ports 5 may not be provided with the locking claws 8 a. What is necessary is just to be provided in the receptacle 5. FIG. In particular, when the connecting body 3 is the conduit coupling body 301 or the bent wiring path forming tool 304, the number of the receiving ports 5 is always plural, but at this time, at least one of the receiving ports 5 is specified. The latching claw 8a should just be provided in a receptacle.

また、この接続体３は、合成樹脂製、特に、難燃性あるいは自己消化性を有する合成樹脂（例えば、硬質塩化ビニル）製の電線管付属品であるが、必ずしも合成樹脂製に限定されるものではない。 The connecting body 3 is a conduit accessory made of a synthetic resin, in particular, a flame retardant or self-digestible synthetic resin (for example, hard vinyl chloride), but is not necessarily limited to a synthetic resin. It is not a thing.

また、接続体３における本体４、つまり制止部５ａよりも奥方には、電線が通過したかを視認可能に形成された（つまり、透明な、半透明な、あるいは光が透過して電線の影が見える程度に透ける）視認部が設けられてもよい。 Further, in the back of the main body 4 in the connection body 3, that is, the restraining portion 5a, it is formed so as to be able to visually recognize whether the electric wire has passed (that is, transparent, translucent, or light is transmitted through and the shadow of the electric wire is transmitted). A visual recognition part may be provided which is transparent to the extent that can be seen.

また、受口５への硬質塩化ビニル電線管１の接続強度は、３０〜４０秒の間に５００〜５１０Ｎの値になるように連続的に増加する引張荷重を加えた後、２分±１０秒後に荷重を取り去った際に接続状態に異常無きように、少なくとも５００Ｎの引き抜きに耐える（つまり、手では容易に引き抜けない）接続強度（係止強度）を有するのがよい。すなわち、受口５への硬質塩化ビニル電線管１の接続強度は、軸方向の荷重（引張荷重）に対して、少なくとも５００Ｎに耐える（つまり、手では容易に引き抜けない）係止力を備えることが望ましい。 Further, the connection strength of the rigid polyvinyl chloride conduit 1 to the receiving port 5 is 2 minutes ± 10 after applying a tensile load that continuously increases so as to become a value of 500 to 510 N in 30 to 40 seconds. It should have a connection strength (locking strength) that can withstand at least 500 N pull-out (that is, it cannot be pulled out easily by hand) so that the connection state does not become abnormal when the load is removed after 2 seconds. That is, the connection strength of the rigid polyvinyl chloride conduit 1 to the receiving port 5 has a locking force that can withstand at least 500 N against an axial load (tensile load) (that is, it cannot be easily pulled out by hand). It is desirable.

また、軸方向の荷重（引張荷重）に対して、少なくとも５００Ｎに耐える（つまり、手では容易に引き抜けない）係止力を備えるとともに、引き抜き方向に荷重（引張荷重）をかけながら周方向に硬質塩化ビニル電線管１を回動させることで引き抜くことができる（詳しくは、硬質塩化ビニル電線管１の外面に係止爪８ａによる螺旋タップが形成されるようにして引き抜くことができる）ような、係止状態としてもよい。もっとも、軸方向の荷重（引張荷重）に対して、少なくとも５００Ｎに耐える（つまり、手では容易に引き抜けない）係止力を備えるとともに、引き抜き方向に荷重（引張荷重）をかけながら周方向に硬質塩化ビニル電線管１を回動させたときに、係止爪８ａにより硬質塩化ビニル電線管１の外面の材料が掻き集められることによりフランジ部１ｂが形成されてその外面のフランジ部１ｂにより引き抜きが阻止されるような（図１１参照）、係止状態としてもよい。 In addition, it has a locking force that can withstand at least 500 N against an axial load (tensile load) (that is, it cannot be pulled out easily by hand) and in the circumferential direction while applying a load (tensile load) in the pull-out direction. It can be pulled out by rotating the hard vinyl chloride conduit 1 (specifically, it can be pulled out so that a spiral tap is formed by the locking claw 8a on the outer surface of the rigid polyvinyl chloride conduit 1). It is good also as a locked state. However, it has a locking force that can withstand at least 500 N against an axial load (tensile load) (that is, it cannot be pulled out easily by hand) and in the circumferential direction while applying a load (tensile load) in the pull-out direction. When the rigid polyvinyl chloride conduit 1 is rotated, the outer clad 8a scrapes the material of the outer surface of the rigid polyvinyl chloride conduit 1 to form the flange portion 1b, and the outer flange portion 1b pulls out the flange portion 1b. It is good also as a locked state which is blocked | prevented (refer FIG. 11).

１硬質塩化ビニル電線管
３接続体
３０１電線管連結具（接続体）
３０２配線ボックス（接続体）
３０３電線管端末キャップ（接続体）
３０４屈曲配線経路形成具（接続体）
４本体
５受口
５ａ制止部
５ｂ収容凹部
８係止爪体
８ａ係止爪
８ｂ爪体基部 1 Hard PVC conduit 3 Connection body 301 Conduit connector (connection body)
302 Wiring box (connector)
303 Conduit end cap (connector)
304 Bending wiring path forming tool (connector)
4 Main body 5 Receiving port 5a Stopping portion 5b Recessing recess 8 Locking claw body 8a Locking claw 8b Claw body base

Claims

A connecting body comprising a hollow main body and a receiving port communicating with the inside of the main body, and connected to the receiving end by inserting an end portion of a rigid polyvinyl chloride conduit having a smooth inner and outer surface,
In the receptacle, provided with a locking claw body made of a metal plate having spring properties,
The latching claw body is disposed in a receiving recess provided on the inner surface of the receiving port and extends in the circumferential direction of the receiving port, and extends from the inside of the claw body base portion. And a plurality of locking claws that protrude so as to incline toward the inner side and the inner side of the receiving port and lock the hard polyvinyl chloride electric wire tube on the outer surface side thereof. Is arranged along the circumferential direction of the receptacle,
In the back of the receptacle, a stop portion is provided to stop the insertion of the hard polyvinyl chloride conduit tube beyond the end of the hard polyvinyl chloride conduit tube by hitting the end face of the rigid polyvinyl chloride conduit tube,
The locking claw has the same thickness up to the tip , and is tilted so as to fall toward the back side of the receiving port as the hard vinyl chloride conduit tube inserted into the receiving port moves, thereby The rigid polyvinyl chloride electric wire is allowed to be inserted from the receptacle, and the hard vinyl chloride electric wire is locked by locking the outer surface of the rigid polyvinyl chloride electric wire. A connecting body of a conduit tube, characterized by restricting the withdrawal of the tube.

A connecting body comprising a hollow main body and a receiving port communicating with the inside of the main body, and connected to the receiving end by inserting an end portion of a rigid polyvinyl chloride conduit having a smooth inner and outer surface,
The receiving port has a plurality of locking claws protruding so as to incline toward the inner side and the inner side of the receiving port and locking the hard polyvinyl chloride electric wire tube on the outer surface side thereof, in the circumferential direction of the receiving port. Arranged along the
In the back of the receptacle, a stop portion is provided to stop the insertion of the hard polyvinyl chloride conduit tube beyond the end of the hard polyvinyl chloride conduit tube by hitting the end face of the rigid polyvinyl chloride conduit tube,
The locking claw has the same thickness up to the tip , and is tilted so as to fall toward the back side of the receiving port as the hard vinyl chloride conduit tube inserted into the receiving port moves, thereby The rigid polyvinyl chloride electric wire is allowed to be inserted from the receptacle, and the hard vinyl chloride electric wire is locked by locking the outer surface of the rigid polyvinyl chloride electric wire. A connecting body of a conduit tube, characterized by restricting the withdrawal of the tube.

A connecting body comprising a hollow main body and a receiving port communicating with the inside of the main body, and connected to the receiving end by inserting an end portion of a rigid polyvinyl chloride conduit having a smooth inner and outer surface,
The receiving port has a plurality of locking claws protruding so as to incline toward the inner side and the inner side of the receiving port and locking the hard polyvinyl chloride electric wire tube on the outer surface side thereof, in the circumferential direction of the receiving port. Arranged along the
In the back of the receptacle, a stop portion is provided to stop the insertion of the hard polyvinyl chloride conduit tube beyond the end of the hard polyvinyl chloride conduit tube by hitting the end face of the rigid polyvinyl chloride conduit tube,
The locking claw allows the insertion of the rigid polyvinyl chloride conduit tube by tilting so as to fall to the back side of the receptacle with the movement of the rigid polyvinyl chloride conduit tube inserted into the receptacle. In addition, with respect to the hard polyvinyl chloride conduit that is about to come out from the receiving port, the outer surface of the rigid polyvinyl chloride conduit is locked to regulate the exit of the hard polyvinyl chloride conduit. In the locking state in which the withdrawal is restricted, the outer surface of the hard polyvinyl chloride conduit is made by the locking claws when the rigid polyvinyl chloride conduit is rotated in the circumferential direction while applying a load in the pulling direction. A connecting body for a conduit tube, characterized in that a flange portion is formed by being scraped together, and the flange portion prevents the hard vinyl chloride conduit tube from being pulled out.

A connecting body comprising a hollow main body and a receiving port communicating with the inside of the main body, and connected to the receiving end by inserting an end portion of a rigid polyvinyl chloride conduit having a smooth inner and outer surface,
The receiving port has a plurality of locking claws protruding so as to incline toward the inner side and the inner side of the receiving port and locking the hard polyvinyl chloride electric wire tube on the outer surface side thereof, in the circumferential direction of the receiving port. Arranged along the
In the back of the receptacle, a stop portion is provided to stop the insertion of the hard polyvinyl chloride conduit tube beyond the end of the hard polyvinyl chloride conduit tube by hitting the end face of the rigid polyvinyl chloride conduit tube,
The locking claw allows the insertion of the rigid polyvinyl chloride conduit tube by tilting so as to fall to the back side of the receptacle with the movement of the rigid polyvinyl chloride conduit tube inserted into the receptacle. In addition, with respect to the hard polyvinyl chloride conduit that is about to come out from the receiving port, the outer surface of the rigid polyvinyl chloride conduit is locked to regulate the exit of the hard polyvinyl chloride conduit. The locked state in which the withdrawal is restricted is a locked state in which the rigid polyvinyl chloride conduit can be pulled out by rotating the rigid polyvinyl chloride conduit in the circumferential direction while applying a load in the pulling direction. A connecting body of a conduit tube, characterized in that