JP4082693B2 - Joint box for wiring - Google Patents

Joint box for wiring Download PDF

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JP4082693B2
JP4082693B2 JP2004092910A JP2004092910A JP4082693B2 JP 4082693 B2 JP4082693 B2 JP 4082693B2 JP 2004092910 A JP2004092910 A JP 2004092910A JP 2004092910 A JP2004092910 A JP 2004092910A JP 4082693 B2 JP4082693 B2 JP 4082693B2
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side walls
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joint box
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JP2005287096A (en
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潤 門脇
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株式会社ブレスト工業研究所
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Description

本発明は電気配線工事においてケーブルのジョイント部の結線束を収容して絶縁保護するための配線用ジョイントボックスに関する。   The present invention relates to a wiring joint box for accommodating and protecting a connection bundle of cable joint portions in electrical wiring work.

一般に屋内電気配線工事において、図９に示すように、複数のケーブル１の端末の被覆を剥がし、内部の多数の分岐した電線２同士をコネクタ（またはスリーブ）３で接続した場合、このジョイント部の結線束Ａが他の導電体が接触しないように、絶縁性のカバー（配線用ジョイントボックス）を被せて保護している（なお、図９において４はケーブル１が配線される造営材である。）。 In general, in indoor electrical wiring work, as shown in FIG. 9, when the ends of a plurality of cables 1 are peeled off and a large number of internal branched wires 2 are connected to each other with a connector (or sleeve) 3, The connection bundle A is protected by covering with an insulating cover (wiring joint box) so that other conductors do not come into contact (in FIG. 9 , 4 is a construction material on which the cable 1 is wired. ).

従来のこの種の配線用ジョイントボックスは、棒状の固定台とお碗形のカバーから成り（特許文献１に記載された従来例）、始めにジョイント部の位置を考慮しながら釘やステップルなどで固定台を造営材に取り付け、配線した複数のケーブルの端末の被覆を剥がして、内部の多数の分岐した電線同士をコネクタまたはスリーブで接続するジョイント作業を行なった後、ジョイント部の結線束をお碗形のカバーに収まる大きさまで手で屈曲させて丸め、その上にカバーを被せ、最後に固定台にカバーを固定している。   This type of conventional joint box for wiring consists of a rod-shaped fixing base and bowl-shaped cover (conventional example described in Patent Document 1), and is first fixed with a nail or a staple while considering the position of the joint part. Attach the base to the construction material, peel off the covering of the ends of the wired cables, perform the joint work to connect the many branched wires inside with a connector or sleeve, and then check the connection bundle of the joint part It is bent by hand to the size that fits into the shape of the cover, covered with a cover, and finally the cover is fixed to a fixed base.

しかし、この従来方法では、固定台の造営材への取り付け作業、結線束の丸め作業（ケーブルの本数が多くなる程、結線束が硬くなり、丸めるのに多大な力を要する。）、固定台へのカバーの固定作業が必要で作業数が多く、狭く作業条件の悪い現場においては特に作業性の悪さが問題となっていた。   However, in this conventional method, the fixing table is attached to the construction material, and the connection bundle is rounded (the more the number of cables is, the harder the bundle is and the greater the force required for rounding). The work of fixing the cover to the head is necessary and the number of work is large, and the workability is particularly problematic in the narrow and poor work conditions.

また、固定台とカバーが必要で部品点数が多くコスト高になり、またカバーが嵩張り、部品の保管性、運搬性にも問題があった。   In addition, a fixed base and a cover are required, which increases the number of parts and increases the cost. Further, the cover is bulky, and there is a problem in storage and transportation of parts.

このため、従来、図１０〜１１に示すように（例えば特許文献２）固定台を省略したものが用いられている。 For this reason, conventionally, as shown in FIGS. 10 to 11 (for example, Patent Document 2), a device in which a fixing base is omitted is used.

即ち、この配線用ジョイントボックス１０は、一端面が開口部１１となった円筒形であって、開口部１１の内側において、図１１に示すように円筒部１２の内壁に円の中心に向かって、弾性を有する多数の抜止め弁１３が設けられている。 That is, the joint box 10 for wiring has a cylindrical shape with one end surface being an opening 11, and inside the opening 11 , as shown in FIG. 11 , toward the center of the circle on the inner wall of the cylinder 12. A number of retaining valves 13 having elasticity are provided.

従って、図９に示すように複数のケーブル１の端末の内部の多数の分岐した電線２同士のジョイント作業を行なった後、図１２、１３に示すようにジョイント部の結線束Ａを円筒形のジョイントボックス１０に収まる大きさまで手で屈曲させて丸め、その上にジョイントボックス１０を開口部１１から被せて、抜止め弁１３を内側へ弾性変形させつつ結線束Ａを抜止め弁１３の内側へ押し込み、抜止め弁１３の逆止作用でジョイントボックス１０が結線束Ａから外れないようにしている。 Accordingly, as shown in FIG. 9 , after performing joint work between a number of branched wires 2 inside the ends of the plurality of cables 1, the connection bundle A of the joint portion is formed into a cylindrical shape as shown in FIGS. 12 and 13 . Bending by hand to a size that fits in the joint box 10 and rounding, covering the joint box 10 from the opening 11 thereon, elastically deforming the retaining valve 13 inwardly, the connection bundle A to the inside of the retaining valve 13 The joint box 10 is prevented from being detached from the connection bundle A by the non-return action of the push-in and stop valve 13.

特開平８−３３１５８JP-A-8-33158 特開平８−３３１５９JP-A-8-33159

しかし、この従来方法でも、結線束Ａの丸め作業が必要であり、この丸め作業が前記したように大変煩雑であった。
また、結線束Ａを抜止め弁１３の内側へ押し込む作業も、結線束Ａにジョイントボックス１０を被せて押し付けるだけでは、図１３に鎖線で示すように抜止め弁１３が結線束Ａに引っかかってめくれた状態のままになり、ジョイントボックス１０が結線束Ａから外れる恐れがある。このため、結線束Ａの下側に抜止め弁１３が来るようにジョイントボックス１０を被せて押し付けつつジョイントボックス１０を回転させて、めくれた状態の抜止め弁１３を図１３のように結線束Ａの下側にもぐりこませる作業を確認しつつ行なう必要があり、また結線束Ａの丸めた姿が不適正だとこの作業がうまくいかないため、丸め作業をやり直す必要も生じることがあり非常に煩雑であった。
また、このジョイントボックス１０は円筒形のため嵩張り、保管性、運搬性にも問題があった。 However, even in this conventional method, it is necessary to round the connection bundle A, and this rounding work is very complicated as described above.
Also, the work of pushing the connection beam A to the inside of the retaining valve 13, only pressing by covering the joint box 10 is in connection flux A, the retainer valve 13 as shown by the chain line in FIG. 13 is caught by the connection beams A There is a possibility that the joint box 10 may be detached from the wire bundle A because it remains in a turned state. Therefore, wiring bundles as wiring bundles A of rotating the joint box 10 while pressed by covering the joint box 10 as retaining valve 13 is at the lower side, the retaining valve 13 in the curled state 13 It is necessary to check the work to be carried under A, and if the figure of the connection bundle A is not properly rounded, this work will not work, so it may be necessary to redo the rounding work. Met.
In addition, since the joint box 10 is cylindrical, there is a problem in bulkiness, storage property, and transportability.

本発明はこのような問題を解決した配線用ジョイントボックスを提供することを目的としている。   An object of the present invention is to provide a joint box for wiring that solves such a problem.

前記目的を達成するために、本発明の配線用ジョイントボックスは、
一端面に細長状の開口部（２５）を有する、弾性を備えた絶縁材から成る薄形袋状体であって、
前記開口部（２５）の幅方向両側壁（２３ａ）、（２３ｂ）の開口端部の該開口端部と反対側に膨らむように円弧状に湾曲した折曲げ線（２６ａ）、（２６ｂ）において連設されて互いに接近する方向に延設され、互いに相対峙する各端部は曲線であり、ほぼ膨出長方形の形状を呈し、長手方向両側壁（２４ａ）、（２４ｂ）を互いに接近する方向に力を加えると円弧状の前記折曲げ線（２６ａ）、（２６ｂ）のさらなる湾曲によって前記幅方向両側壁（２３ａ）、（２３ｂ）に対して次第に直角から鋭角になるように前記開口端部と反対側へ倒れ込み、前記力を解除すると元の状態に復帰する第１、第２の係止突片（２７ａ）、（２７ｂ）を有し、
前記長手方向両側壁（２４ａ）、（２４ｂ）を互いに接近する方向に力を加えることによって前記開口部（２５）の幅方向両側壁（２３ａ）、（２３ｂ）間を広げて前記第１、第２の係止突片（２７ａ）、（２７ｂ）を前記開口端部と反対側へ倒れ込ませて、ジョイント部の結線束を前記第１、第２の係止突片（２７ａ）、（２７ｂ）間から内側へ挿入し、前記長手方向両側壁（２４ａ）、（２４ｂ）への力の解除による弾性復帰力によって前記幅方向両側壁（２３ａ）、（２３ｂ）を接近させて前記第１、第２の係止突片によって結線束を離脱不能に収容するようにしたことを特徴としている。 To achieve the above object, wiring joint box of the present invention,
A thin bag-like body made of an insulating material having elasticity having an elongated opening (25) on one end surface,
In folding lines (26a) and (26b) curved in an arc shape so as to swell to the opposite side of the opening end of the opening (25a) on both side walls (23a) and (23b) in the width direction Ends that are connected to each other and extend in a direction approaching each other and facing each other are curved, have a substantially bulging rectangular shape, and are in a direction in which the side walls (24a) and (24b) in the longitudinal direction approach each other When the force is applied to the opening end portion, the arcuate bending lines (26a) and (26b) are further curved so that the opening end portions gradually become perpendicular to the both side walls (23a) and (23b) in the width direction. The first and second locking protrusions (27a) and (27b) that return to the original state when the force is released,
Said longitudinal side walls (24a), both widthwise side walls (23a), said first spread between (23b) of the opening by applying a force in a direction toward the (24b) to each other (25), first 2 locking protrusions (27a) and (27b) are tilted to the opposite side of the opening end, and the connection bundle of the joint portion is connected to the first and second locking protrusions (27a) and (27b). ) was inserted from between inward, the longitudinal side walls (24a), (24b) wherein the elastic restoring force due to release of the force in the width direction side walls (23a), said first and to approximate (23b) The connection bundle is housed in a non- detachable manner by the second locking protrusion .

従って、薄形袋状体の長手方向両側壁を接近する方向に作業者が手で力を加えることによって前記開口部の幅方向両側壁間を広げてジョイント部の結線束を前記両係止突片間から内側へ挿入した後、手の力を解除するだけで、弾性復帰力によって前記幅方向の両側壁を接近させて前記両係止突片によって結線束を離脱不能に収容することができる。   Accordingly, the operator applies a force by hand in the direction approaching the longitudinal side walls of the thin bag-like body to widen the widthwise side walls of the opening so that the connection bundle of the joint portion is connected to the both locking projections. After inserting from one side to the inside, just releasing the hand force, the both side walls in the width direction can be brought close to each other by the elastic restoring force, and the connection bundle can be accommodated in a non-detachable manner by the both locking protrusions. .

このように、本発明では、薄形袋状体の長手方向両側壁を接近する方向に作業者が手で力を加えてジョイント部の結線束を内側へ挿入した後、手の力を解除するだけで済むので、作業手順が著しく少なくなり、作業性が格段に向上する。
また、薄形袋状であるため、嵩張らず、保管性、運搬性も格段に向上する。 As described above, in the present invention, the operator applies the force by hand in the direction approaching the both side walls in the longitudinal direction of the thin bag-like body to insert the connection bundle of the joint portion inward, and then releases the force of the hand. Therefore, the work procedure is remarkably reduced and workability is remarkably improved.
Moreover, since it is a thin bag shape, it is not bulky, and storage property and transportability are remarkably improved.

以下、図面に基づいて本発明の実施の形態を説明する。   Hereinafter, embodiments of the present invention will be described with reference to the drawings.

図１〜４は本発明の一実施形態の配線用ジョイントボックスを示している。
この配線用ジョイントボックス２０は、向かい合って外側へ膨らむように湾曲した２つの湾曲線２１ａ、２１ｂと、長手方向の両端が互いに平行または向かい合って外側へ膨らむように湾曲した線２２ａ、２２ｂから成るほぼ楕円形の上端面板部２１を備えている。 1 to 4 show a joint box for wiring according to an embodiment of the present invention.
The wiring joint box 20 is substantially composed of two curved lines 21a and 21b that are curved so as to swell outward and face outward, and lines 22a and 22b that are curved so that their longitudinal ends are parallel or face each other and bulge outward. An elliptical upper end face plate portion 21 is provided.

そして、前記２つの湾曲線２１ａ、２１ｂにおいて前記上端面板部２１に直角より僅かに大きな角度で連設され、下端側が次第に幅広になった外側へ円弧状に僅かに湾曲した第１、第２の側壁板部２３ａ、２３ｂを備えている。   Then, the first and second curved lines 21a and 21b are connected to the upper end face plate portion 21 at an angle slightly larger than a right angle, and the lower end side is gradually widened outwardly and slightly curved in an arc shape. Side wall plate portions 23a and 23b are provided.

さらに、前記上端面板部２１及び前記第１、第２の側壁板部２３ａ、２３ｂに連設され、下端側が僅かに幅広になった平板状または円弧状の第３、第４の側壁板部２４ａ、２４ｂを備えている。   Further, the third and fourth side wall plate portions 24a having a flat plate shape or an arc shape which are connected to the upper end face plate portion 21 and the first and second side wall plate portions 23a and 23b and have a slightly lower end side. , 24b.

これらの第１、第２の側壁板部２３ａ、２３ｂ及び第３、第４の側壁板部２４ａ、２４ｂの下端部で囲まれてほぼ楕円形の細長状の開口部２５が形成されている。   A substantially oval elongated opening 25 is formed surrounded by the first and second side wall plate portions 23a and 23b and the lower end portions of the third and fourth side wall plate portions 24a and 24b.

このように、この配線用ジョイントボックス２０は、一端面に断面がほぼ楕円形の細長状の開口部２５を有する薄形袋状体をしており、電気的絶縁性を持ち、且つ開口部２５側の周辺部分が適度の弾性を有するように、例えばプラスチックの一体成形によって構成されている。   In this way, the wiring joint box 20 has a thin bag-like body having an elongated opening 25 having a substantially elliptical cross section on one end surface, has electrical insulation, and has an opening 25. For example, it is configured by integral molding of plastic so that the peripheral portion on the side has appropriate elasticity.

また、前記第１、第２の側壁板部２３ａ、２３ｂの下端には、上向きに膨らむように円弧状に湾曲した折曲げ線２６ａ、２６ｂにおいて連設されて、この折曲げ線２６ａ、２６ｂから互いに接近する方向に突出した第１、第２の係止突片２７ａ、２７ｂが設けられている。   Further, the lower ends of the first and second side wall plate portions 23a and 23b are connected to bending lines 26a and 26b that are curved in an arc shape so as to bulge upward, and from the bending lines 26a and 26b. First and second locking protrusions 27a and 27b protruding in directions approaching each other are provided.

さらに、前記第３、第４の側壁板部２４ａ、２４ｂの下端には、直線状の折曲げ線２８ａ、２８ｂにおいて連設され、外側へ折曲げられ、釘やネジなどで造営材に固定するための取付け穴２９ａ、２９ｂを備えた取付け片３０ａ、３０ｂが設けられている。   Further, the lower ends of the third and fourth side wall plate portions 24a and 24b are connected to each other at linear fold lines 28a and 28b, bent outward, and fixed to the construction material with nails or screws. Mounting pieces 30a and 30b having mounting holes 29a and 29b are provided.

次に、この配線用ジョイントボックス２０の使用方法について図５〜８によって説明する。
まず、図６に示すように、配線した複数のケーブル１の端末の被覆を剥がして、内部の多数の分岐した電線２同士をコネクタ（またはスリーブ）３で接続するジョイント作業を行なう。 Next, the usage method of this joint box 20 for wiring is demonstrated with reference to FIGS.
First, as shown in FIG. 6, the covering of the ends of a plurality of wired cables 1 is peeled off, and a joint operation for connecting a large number of internal branched wires 2 with connectors (or sleeves) 3 is performed.

次に、図５、６に示すように、薄形袋状体をしたこの配線用ジョイントボックス２０の開口部２５の長手方向両側壁（即ち、第３、第４の側壁板部２４ａ、２４ｂ）を接近する方向に作業者が手で力を加えて（例えば作業者が片手で握り込む）、外側に円弧状に湾曲した前記開口部２５の幅方向両側壁（即ち、第１、第２の側壁板部２３ａ、２３ｂ）間を弾性に抗して間隔が拡がるように外側へ撓ませて広げる。   Next, as shown in FIGS. 5 and 6, both side walls in the longitudinal direction of the opening 25 of the joint box 20 for wiring having a thin bag shape (that is, third and fourth side wall plate portions 24a and 24b). When the operator applies force with his / her hand in the direction of approaching (for example, the operator grasps with one hand), both side walls in the width direction of the opening 25 curved in an arc shape on the outside (that is, the first and second walls) The space between the side wall plate portions 23a and 23b) is widened by bending outward so as to increase the spacing against elasticity.

このようにすると、第１、第２の係止突片２７ａ、２７ｂは第１、第２の側壁板部２３ａ、２３ｂの下端で上向きに膨らむ円弧状の湾曲した折曲げ線２６ａ、２６ｂで折曲げられているため、第１、第２の側壁板部２３ａ、２３ｂが外側への湾曲が大きくなるにつれて前記折曲げ線２６ａ、２６ｂの円弧の描く円が次第に小さくなり、この結果、第１、第２の係止突片２７ａ、２７ｂは図５、６に示すように第１、第２の側壁板部２３ａ、２３ｂに対して次第に直角から鋭角になるように奥側（図６において上側）へと倒れ込み、第１、第２の係止突片２７ａ、２７ｂ間の間隔も広がる。   In this way, the first and second locking protrusions 27a and 27b are folded at the arc-shaped curved folding lines 26a and 26b that bulge upward at the lower ends of the first and second side wall plate portions 23a and 23b. Since the first and second side wall plate portions 23a and 23b are bent outwardly, the circles drawn by the arcs of the fold lines 26a and 26b gradually become smaller. As shown in FIGS. 5 and 6, the second locking protrusions 27a and 27b are located at the back side (upper side in FIG. 6) so as to gradually become perpendicular to the first and second side wall plate portions 23a and 23b. The space between the first and second locking protrusions 27a and 27b is widened.

従って、図５、６の状態で開口部２５の第１、第２の係止突片２７ａ、２７ｂの間からジョイント部の結線束Ａを奥まで挿入した後、手を放して第３、第４の側壁板部２４ａ、２４ｂへの力を解除すると、弾性復帰力によって前記第１、第２の両側壁板部２３ａ、２３ｂが元の状態に復帰しようとして接近し、第１、第２の係止突片２７ａ、２７ｂが奥側に倒れ込んだ状態から元の状態に復帰しようとして第１、第２の係止突片２７ａ、２７ｂ間の間隔が狭くなり、結線束Ａの下方を図７、８に示すように第１、第２の係止突片２７ａ、２７ｂで両側から挟持した状態になる。   Accordingly, after inserting the connection bundle A of the joint part from between the first and second locking protrusions 27a and 27b of the opening 25 in the state of FIGS. When the force on the side wall plate portions 24a and 24b is released, the first and second side wall plate portions 23a and 23b approach each other to return to the original state by the elastic return force, and the first and second The distance between the first and second locking protrusions 27a and 27b is reduced so that the locking protrusions 27a and 27b return to the original state from the state where the locking protrusions 27a and 27b are collapsed to the back side. , 8, the first and second locking protrusions 27a and 27b are sandwiched from both sides.

なお、第１、第２の係止突片２７ａ、２７ｂは奥側へ倒れ込んでいるので、ジョイント部の結線束Ａの上から被せて内側へ挿入する際に、結線束Ａを奥側へ導くガイド的役割も果たす。   In addition, since the 1st, 2nd latching protrusions 27a and 27b have fallen to the back side, when covering the connection bundle A of a joint part and inserting it inside, it guides the connection bundle A to the back side. Also plays a guiding role.

このようにジョイントボックス２０を握り込んで離すだけの簡単な動作でジョイント部の結線束Ａを離脱不能に収容することができる。   In this way, the connection bundle A of the joint portion can be housed in a non-detachable manner by a simple operation by simply grasping and releasing the joint box 20.

なお、ケーブル１を配線する造営材４が木製の場合には、前記第３、第４の側壁板部２４ａ、２４ｂの下端の取付け片３０ａ、３０ｂの取付け穴２９ａ、２９ｂにおいて図８に示すように釘やネジ３３などで造営材４に固定することができる。   When the construction material 4 for wiring the cable 1 is made of wood, as shown in FIG. 8 in the mounting holes 29a and 29b of the mounting pieces 30a and 30b at the lower ends of the third and fourth side wall plate portions 24a and 24b. It can be fixed to the construction material 4 with nails, screws 33 or the like.

本発明の一実施形態を示す斜視図The perspective view which shows one Embodiment of this invention 本発明の一実施形態を示す斜視図The perspective view which shows one Embodiment of this invention 本発明の一実施形態を示す底面図The bottom view which shows one Embodiment of this invention 本発明の一実施形態を示す断面図Sectional drawing which shows one Embodiment of this invention 本発明の一実施形態の使用状態を示す底面図The bottom view which shows the use condition of one Embodiment of this invention 本発明の一実施形態の使用状態を示す断面図Sectional drawing which shows the use condition of one Embodiment of this invention 本発明の一実施形態の使用状態を示す断面図Sectional drawing which shows the use condition of one Embodiment of this invention 本発明の一実施形態の使用状態を示す斜視図The perspective view which shows the use condition of one Embodiment of this invention ケーブルのジョイント部を示す説明図Explanatory drawing showing the joint part of the cable 従来のジョイントボックスの使用状態を示す斜視図The perspective view which shows the use condition of the conventional joint box 図１０のジョイントボックスの底面図Bottom view of the joint box of FIG. 図１０のジョイントボックスの使用状態を示す断面図Sectional drawing which shows the use condition of the joint box of FIG. 図１０のジョイントボックスの使用状態を示す断面図Sectional drawing which shows the use condition of the joint box of FIG.

符号の説明Explanation of symbols

Ａ 結線束
１ ケーブル
２０配線用ジョイントボックス
２３ａ 第１の側壁板部
２３ｂ 第２の側壁板部
２４ａ 第３の側壁板部
２４ｂ 第４の側壁板部
２５ 開口部
２６ａ 折曲げ線
２６ｂ 折曲げ線
２７ａ 第１の係止突片
２７ｂ 第２の係止突片
２８ａ 折曲げ線
２８ｂ 折曲げ線 A Connection bundle 1 Cable 20 Joint box for wiring 23a First side wall plate portion 23b Second side wall plate portion 24a Third side wall plate portion 24b Fourth side wall plate portion 25 Opening portion 26a Folding line 26b Folding line 27a First locking protrusion 27b Second locking protrusion 28a Bending line 28b Bending line

Claims (1)

一端面に細長状の開口部（２５）を有する、弾性を備えた絶縁材から成る薄形袋状体であって、
前記開口部（２５）の幅方向両側壁（２３ａ）、（２３ｂ）の開口端部の該開口端部と反対側に膨らむように円弧状に湾曲した折曲げ線（２６ａ）、（２６ｂ）において連設されて互いに接近する方向に延設され、互いに相対峙する各端部は曲線であり、ほぼ膨出長方形の形状を呈し、長手方向両側壁（２４ａ）、（２４ｂ）を互いに接近する方向に力を加えると円弧状の前記折曲げ線（２６ａ）、（２６ｂ）のさらなる湾曲によって前記幅方向両側壁（２３ａ）、（２３ｂ）に対して次第に直角から鋭角になるように前記開口端部と反対側へ倒れ込み、前記力を解除すると元の状態に復帰する第１、第２の係止突片（２７ａ）、（２７ｂ）を有し、
前記長手方向両側壁（２４ａ）、（２４ｂ）を互いに接近する方向に力を加えることによって前記開口部（２５）の幅方向両側壁（２３ａ）、（２３ｂ）間を広げて前記第１、第２の係止突片（２７ａ）、（２７ｂ）を前記開口端部と反対側へ倒れ込ませて、ジョイント部の結線束を前記第１、第２の係止突片（２７ａ）、（２７ｂ）間から内側へ挿入し、前記長手方向両側壁（２４ａ）、（２４ｂ）への力の解除による弾性復帰力によって前記幅方向両側壁（２３ａ）、（２３ｂ）を接近させて前記第１、第２の係止突片によって結線束を離脱不能に収容するようにしたことを特徴とする配線用ジョイントボックス。 A thin bag-like body made of an insulating material having elasticity having an elongated opening (25) on one end surface,
In folding lines (26a) and (26b) curved in an arc shape so as to swell to the opposite side of the opening end of the opening (25a) on both side walls (23a) and (23b) in the width direction Ends that are connected to each other and extend in a direction approaching each other and facing each other are curved, have a substantially bulging rectangular shape, and are in a direction in which the side walls (24a) and (24b) in the longitudinal direction approach each other When the force is applied to the opening end portion, the arcuate bending lines (26a) and (26b) are further curved so that the opening end portions gradually become perpendicular to the both side walls (23a) and (23b) in the width direction. The first and second locking protrusions (27a) and (27b) that return to the original state when the force is released,
Said longitudinal side walls (24a), both widthwise side walls (23a), said first spread between (23b) of the opening by applying a force in a direction toward the (24b) to each other (25), first 2 locking protrusions (27a) and (27b) are tilted to the opposite side of the opening end, and the connection bundle of the joint portion is connected to the first and second locking protrusions (27a) and (27b). ) was inserted from between inward, the longitudinal side walls (24a), (24b) wherein the elastic restoring force due to release of the force in the width direction side walls (23a), said first and to approximate (23b) The wiring joint box is characterized in that the connection bundle is accommodated in a non- detachable manner by the second locking protrusion .
JP2004092910A 2004-03-26 2004-03-26 Joint box for wiring Expired - Lifetime JP4082693B2 (en)

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JP2004092910A JP4082693B2 (en) 2004-03-26 2004-03-26 Joint box for wiring

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JP2004092910A JP4082693B2 (en) 2004-03-26 2004-03-26 Joint box for wiring

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JP2005287096A JP2005287096A (en) 2005-10-13
JP4082693B2 true JP4082693B2 (en) 2008-04-30

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Publication number Priority date Publication date Assignee Title
JP5801736B2 (en) * 2012-03-15 2015-10-28 未来工業株式会社 Joint box

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