JP4446349B2

JP4446349B2 - Wiring box

Info

Publication number: JP4446349B2
Application number: JP2004336846A
Authority: JP
Inventors: 昭八清水
Original assignee: Mirai Kogyo KK
Current assignee: Mirai Kogyo KK
Priority date: 2004-07-14
Filing date: 2004-11-22
Publication date: 2010-04-07
Anticipated expiration: 2024-11-22
Also published as: JP2006054989A

Description

本発明は、ボックスに透孔閉塞部が除去可能に設けられ、該閉塞部が除去されて配線・配管材を挿通又は接続させる透孔が形成される配線用ボックスに関するものである。 The present invention relates to a wiring box in which a through-hole blocking portion is removably provided in a box, and the blocking portion is removed to form a through-hole through which a wiring / piping material is inserted or connected.

従来より、ボックスの配線・配管材を挿通又は接続させるための透孔は、除去可能な閉塞部を一体に成形し、透孔使用時に、該閉塞部を除去して開口するようにして形成される。係るボックスは、軽量型鋼に２枚の壁材を対向配置し、立設して形成される軽量間仕切壁の空間内に取付けられたり、立設された型枠に取付けられた後に、型枠内にコンクリートを打設することによってコンクリート内に埋設されて使用されるものである。 Conventionally, the through hole for inserting or connecting the wiring / piping material of the box is formed by integrally forming a removable blocking part and removing the blocking part when the through hole is used. The Such a box is installed in the space of a lightweight partition wall formed by standing two wall materials facing a lightweight mold steel, or after being attached to a standing mold frame, It is used by being embedded in concrete by placing concrete in the wall.

そして、本出願人は、電気工事業者や各種設備業者が、常時携帯しているドライバを用いて、閉塞部をこじ開けながら除去できるボックスの透孔閉塞構造を提案している（特許文献１）。即ち、この透孔閉塞構造は、ドライバ等の工具の先細の端部をボックスの外方から貫通孔に挿通させ、透孔形成壁部の外面側にドライバを当接させた状態で当該当接部を回動させ、閉塞部にこじ開け力を作用させ、該閉塞部を除去するものである。また、ドライバの使用を前提としないボックスＢとしては、図１に示されるように、ハンマー４５で閉塞部１３を殴打して、これを打ち抜き可能なものもある。そして、上記したいずれのボックスにおいても、閉塞部の除去作業は、ボックスの取付け前に、この外方から工具を閉塞部に近接させて、その外面に当接させて行うことを前提としており、従って、閉塞部や、その周縁の壁部の外壁面に作用させる力に対応して除去されるべく形成されていた。換言すると、上記した従来構造の閉塞部は、これを内方から打ち抜く際の作業性に関しては、考慮されずに形成されていた。
特開2002-176720号公報 And this applicant has proposed the through-hole obstruction | occlusion structure of the box which an electrician and various equipment contractors can remove while obstructing the obstruction | occlusion part using the driver who is always carrying (patent document 1). In other words, this through-hole closing structure is formed in such a manner that the tapered end of a tool such as a screwdriver is inserted into the through-hole from the outside of the box and the driver is in contact with the outer surface side of the through-hole forming wall. The part is rotated so that the opening force is applied to the closed part to remove the closed part. Further, as shown in FIG. 1, the box B that does not assume the use of a driver can be punched by hitting the closing portion 13 with a hammer 45. And in any of the above-mentioned boxes, it is assumed that the removal work of the closing part is performed by bringing the tool close to the closing part from the outside and contacting the outer surface before attaching the box, Therefore, it was formed so as to be removed corresponding to the force acting on the closed portion and the outer wall surface of the peripheral wall portion. In other words, the above-described closed portion of the conventional structure is formed without considering the workability when punching it out from the inside.
JP 2002-176720 A

しかし、実際には、例えば図４に示されるように、前記ボックスＢを前述した軽量間仕切壁Ｗの空間内に取付けて室内を区画した後に、配線忘れに気付いたり、或いは配線変更に対応するため、配線の追加・変更を余儀なくされ、ボックス本体１０の内方から閉塞部１３を打ち抜かざるを得ない場合がある。ボックスＢは、後述するように、ボックス本体１０の開口部１７や、これを覆うボックスカバー５等のカバー類やその開口部のみが、その前面に立設された壁材２の貫通孔２ａから室内に現れた状態で配設されるので、作業場所である室内側から、壁材２に隠蔽された前記閉塞部１３の外壁面１３ａには近付けないという理由による。そして、従来構成の閉塞部、及び薄肉連結部を介して接続するこの周縁の側壁部の各内壁面は、連続して平坦状に形成されていた。従って、ボックス本体の内方から閉塞部を打ち抜くべく、室内側に臨む開口部からドライバの軸部を挿入して、閉塞部の内壁面にこの先端部を当接しながら該閉塞部に衝撃力を加えようとすると、無理な姿勢でドライバを叩いて生ずる衝撃力を閉塞部に作用させて、該閉塞部の除去作業を行わざるを得ないので、ドライバの先端部が滑って、叩き損じを生じ易いという問題を有していた。特に、ボックス本体の側壁部に形成された閉塞部を打ち抜く場合には、ドライバの係止状態の姿勢が傾斜し易く、底壁部の同じ場合と比較すると、その「滑り」による叩き損じが生じ易くなって作業効率が悪かった。 However, in practice, for example, as shown in FIG. 4, after the box B is installed in the space of the light partition wall W described above and the room is partitioned, the user forgets to wire or responds to the wiring change. In some cases, the wiring is forced to be added or changed, and the closing portion 13 must be punched from the inside of the box body 10. As will be described later, the box B includes only the opening 17 of the box main body 10 and the covers such as the box cover 5 covering the box B or the opening from the through hole 2a of the wall material 2 erected on the front surface thereof. Since it is arranged in a state of appearing in the room, it is because the outer wall surface 13a of the closed portion 13 concealed by the wall material 2 cannot be approached from the indoor side as the work place. And each inner wall surface of this peripheral side wall part connected via the obstruction | occlusion part of a conventional structure, and a thin connection part was formed in flat form continuously. Therefore, in order to punch out the closed portion from the inside of the box body, the shaft portion of the driver is inserted from the opening facing the indoor side, and an impact force is applied to the closed portion while abutting the tip portion against the inner wall surface of the closed portion. If it tries to add, the impact force generated by hitting the driver in an unreasonable posture must be applied to the closed part, and the removal part of the closed part must be removed. It had the problem of being easy. In particular, when punching out the closed portion formed on the side wall portion of the box body, the posture of the locked state of the driver tends to be inclined, and compared with the same case of the bottom wall portion, the hitting failure due to the “slip” occurs. It became easy and work efficiency was bad.

本発明は、工具を用いてボックス本体の内方から閉塞部に衝撃力を加えてこれを除去する際に、工具先端部の滑りによる叩き損じを減らすことによって、その作業効率を向上させることを課題としている。 The present invention is intended to improve the work efficiency by reducing the damage caused by the sliding of the tip of the tool when removing the impact by applying an impact force to the closed part from the inside of the box body using a tool. It is an issue.

上記の課題を解決するために請求項１の発明は、前面に開口部を有するボックス本体を構成する側壁部の透孔形成予定部に、配線・配管材が挿通される透孔を形成する閉塞部が除去可能に設けられた配線用ボックスであって、前記閉塞部は、前記透孔形成予定部の全体を閉塞し、ボックス本体の内方及び外方のいずれからでも衝撃力を加えることで除去可能にボックス本体に一体に成形されており、工具を用いて、前記開口部から差し入れた工具を前記閉塞部が設けられた側壁部に対して傾斜した姿勢でボックス本体の内方から前記閉塞部に衝撃力を加えて該閉塞部を除去する際に、該工具の先端部が係止して滑るのを防止すべく、前記閉塞部内壁面の底壁部に近い部分には、傾斜した姿勢の工具先端が係止する段差をなす工具係止部が、前記閉塞部と共に除去可能に設けられ、前記工具係止部は、ボックス本体内方へと突設されて前記段差を構成していることを特徴としている。 In order to solve the above-mentioned problems, the invention of claim 1 is a block that forms a through-hole through which wiring / piping material is inserted in a through-hole forming scheduled portion of a side wall portion that constitutes a box body having an opening on the front surface. A wiring box provided with a removable portion, wherein the closing portion closes the entire through hole forming portion and applies an impact force from either the inside or the outside of the box body. Removably formed integrally with the box body, and using a tool, the tool inserted from the opening is inclined from the inside of the box body in a posture inclined with respect to the side wall provided with the closing part. When removing the closing part by applying an impact force to the part, in order to prevent the tip of the tool from being locked and slipped, the portion near the bottom wall part of the inner wall surface of the closing part is inclined. tool engaging portion forming a stepped tip of the tool is engaged is, before Is provided to be removed together with the closure part, the tool engagement portion is characterized in that so as to project into the box body inwardly constitute the step.

請求項１の発明によれば、工具係止部は、ボックス内方に突設して形成された段差により構成されているため、ボックス本体の開口のみが前面に開口している状態において、ボックス本体の側壁部に設けられた閉塞部を工具の衝撃力により除去するには、閉塞部の内壁面に形成された前記段差に工具の先端を係止させて、該工具に衝撃力を与えて行う。工具は、閉塞部が設けられた側壁部に対して傾斜した姿勢で、該工具の先端は、前記段差に係止されているため、工具に加えられる衝撃力によっても、滑ることなく閉塞部に衝撃力が有効に作用して該閉塞部が除去される。このため、ボックス本体の内方から工具の衝撃力を閉塞部に加えて、該閉塞部を除去する際に、衝撃力の加え損じが激減して、効率よく閉塞部を除去でき、ボックス本体の側壁部の閉塞部を除去する際には、側壁部に対して工具が傾斜した姿勢となるので、工具の滑り防止の効果は一層顕著に現れる。また、前記工具係止部は、閉塞部と共に除去可能であって、閉塞部を除去して透孔を形成した後の側壁部の内壁面に突出部が存在しないので、ボックス内部の電線管の接続状態を良好に維持できる。特に、請求項１の発明では、工具係止部は、ボックス本体内方に突設して形成された段差により構成されているので、当該段差に対して工具の先端部が安定して係止されるので、閉塞部の除去作業を確実、かつ容易に行える。 According to the first aspect of the present invention, since the tool locking portion is formed by a step formed projecting inward of the box, only the box main body opening is opened in the front surface. In order to remove the closing portion provided on the side wall portion of the main body by the impact force of the tool, the tip of the tool is locked to the step formed on the inner wall surface of the closing portion, and the impact force is applied to the tool. Do. The tool is tilted with respect to the side wall provided with the closing portion, and the tip of the tool is locked to the step , so that the tool is not slipped even by an impact force applied to the tool. The blocking force is removed by the effective impact force. For this reason, when the impact force of the tool is applied to the closed portion from the inside of the box body and the closed portion is removed, the loss of the impact force is drastically reduced, and the closed portion can be efficiently removed. When removing the closed portion of the side wall, the tool is inclined with respect to the side wall, so that the effect of preventing the tool from slipping appears more remarkably. Further, the tool locking portion can be removed together with the closing portion, and there is no protrusion on the inner wall surface of the side wall portion after the closing portion is removed and the through hole is formed. Good connection state can be maintained. In particular, according to the first aspect of the present invention, the tool locking portion is constituted by a step formed by projecting inward of the box body, so that the tip of the tool is stably locked to the step. Therefore, the removal operation of the blocking portion can be performed reliably and easily.

請求項２の発明は、請求項１の発明において、前記工具係止部は、工具であるプラスドライバの先端形状に対応し、ボックス本体の開口部側に開口する半円状の凹部を有することを特徴としている。 According to a second aspect of the present invention, in the first aspect of the invention, the tool locking portion has a semicircular concave portion corresponding to a tip shape of a plus driver as a tool and opening on the opening side of the box body. It is characterized by.

請求項２の発明によれば、請求項１の発明の作用効果に加えて、プラスドライバは、電気工事業者等の技術作業員が常備しているものであり、このプラスドライバを用いて閉塞部を除去する際に、工具係止部が上記形状であると、工具係止部の半円状の凹部にプラスドライバの先端部が部分嵌合状態になることが相乗して棒状のドライバの先端部を係止し易くなる。 According to the invention of claim 2, in addition to the operational effect of the invention of claim 1 , the plus driver is always provided by a technical worker such as an electrician and the like, and using this plus driver, the blocking portion When the tool locking part has the above shape, the tip of the rod-shaped screwdriver is combined with the semi-circular recess of the tool locking part that the tip of the plus driver is partially engaged. It becomes easy to lock the part.

請求項３の発明は、前面に開口部を有するボックス本体を構成する側壁部の透孔形成予定部に、配線・配管材が挿通される透孔を形成する閉塞部が除去可能に設けられた配線用ボックスであって、前記閉塞部は、前記透孔形成予定部の全体を閉塞し、ボックス本体の内方及び外方のいずれからでも衝撃力を加えることで除去可能にボックス本体に一体に成形されており、工具を用いて、前記開口部から差し入れた工具を前記閉塞部が設けられた側壁部に対して傾斜した姿勢でボックス本体の内方から前記閉塞部に衝撃力を加えて該閉塞部を除去する際に、
該工具の先端部が係止して滑るのを防止すべく、前記閉塞部内壁面の底壁部に近い部分には、傾斜した姿勢の工具先端が係止する段差をなす工具係止部が、前記閉塞部と共に除去可能に設けられ、前記工具係止部は、前記閉塞部の内壁面に形成された凹部により前記段差を構成していることを特徴としている。 The invention according to claim 3 is provided such that a blocking portion for forming a through-hole through which the wiring / pipe material is inserted is removably provided in the through-hole forming scheduled portion of the side wall portion constituting the box body having an opening on the front surface. The wiring box, wherein the closing portion closes the entire through-hole forming portion and can be removed by applying an impact force from either the inside or the outside of the box body and is integrated with the box body. The tool inserted into the opening is applied with an impact force from the inside of the box body to the closing part in a posture inclined with respect to the side wall provided with the closing part. When removing the obstruction,
In order to prevent the tip portion of the tool from locking and sliding, a tool locking portion forming a step where the tool tip in an inclined posture is locked at a portion close to the bottom wall portion of the inner wall surface of the closing portion, The tool locking portion is provided so as to be removable together with the closing portion, and the step is constituted by a recess formed in an inner wall surface of the closing portion .

請求項３の発明からは、請求項１の発明において、工具係止部が、ボックス本体内方への突設して形成された段差により生ずる特有の作用効果を除いて、請求項１の発明と同様の作用効果が奏される。特に、請求項３の発明によれば、閉塞部の内壁面に形成された凹部に工具の先端を係止させられ、当該凹部が浅い場合には、ボックス内の電線が工具係止部に引っ掛からない利点がある。 The invention according to claim 3 is the invention according to claim 1 except for the specific function and effect produced by the step formed by projecting the tool locking portion inward of the box body. The same effect is exhibited. In particular, according to the invention of claim 3, when the tip of the tool is locked in the recess formed on the inner wall surface of the closing portion, and the recess is shallow, the electric wire in the box is caught by the tool locking portion. There are no advantages.

請求項４の発明は、前面に開口部を有するボックス本体を構成する側壁部の透孔形成予定部に、配線・配管材が挿通される透孔を形成する閉塞部が除去可能に設けられた配線用ボックスであって、前記閉塞部は、前記透孔形成予定部の全体を閉塞し、ボックス本体の内方及び外方のいずれからでも衝撃力を加えることで除去可能にボックス本体に一体に成形されており、工具を用いて、前記開口部から差し入れた工具を前記閉塞部が設けられた側壁部に対して傾斜した姿勢でボックス本体の内方から前記閉塞部に衝撃力を加えて該閉塞部を除去する際に、該工具の先端部が係止して滑るのを防止すべく、前記閉塞部内壁面の底壁部に近い部分には、傾斜した姿勢の工具先端が係止する段差をなす工具係止部が、前記閉塞部と共に除去可能に設けられ、前記工具係止部は、閉塞部内壁面の全部又は一部に形成された複数の凹凸部を有する凹凸面で構成されていることを特徴としている。 According to a fourth aspect of the present invention, a blocking portion for forming a through hole through which a wiring / pipe material is inserted is detachably provided in a through hole forming scheduled portion of a side wall portion constituting the box body having an opening on the front surface. The wiring box, wherein the closing portion closes the entire through-hole forming portion and can be removed by applying an impact force from either the inside or the outside of the box body and is integrated with the box body. The tool inserted into the opening is applied with an impact force from the inside of the box body to the closing part in a posture inclined with respect to the side wall provided with the closing part. In order to prevent the tip of the tool from locking and slipping when removing the blocking portion, a step near the bottom wall of the inner wall surface of the blocking portion is locked to the tip of the inclined tool. tool engaging portion is set to be removed together with the closure part which forms the Is, the tool engagement portion is characterized in that is formed from an irregular surface having a plurality of uneven portions formed on all or part of the occlusion wall.

請求項４の発明からは、請求項１の発明において、工具係止部が、ボックス本体内方への突設して形成された段差により生ずる特有の作用効果を除いて、請求項１の発明と同様の作用効果が奏される。特に、請求項４の発明によれば、閉塞部内壁面の全部又は一部に形成された凹凸面に、工具の先端部が係止されることにより、工具に衝撃力を加えても、工具の先端は滑らなくなる。また、複数の凹凸部を有する凹凸面は、他の平坦な部分に比較して光沢が異なることにより、閉塞部の位置が分かり易くなり、更に凹凸面であるので、配線の引っ掛かりも殆どなくて作業性が良い。 The invention according to claim 4 is the invention according to claim 1 except for the specific function and effect produced by the step formed by projecting the tool locking portion into the box body inward. The same effect is exhibited. In particular, according to the fourth aspect of the present invention, even if an impact force is applied to the tool by engaging the tip of the tool with the uneven surface formed on the whole or part of the inner wall surface of the closing portion, The tip will not slide. In addition, the uneven surface having a plurality of uneven portions has a different gloss compared to other flat portions, so that the position of the closed portion is easy to understand, and since it is an uneven surface, there is almost no catching of wiring. Good workability.

本発明によれば、ボックス本体の内方から工具を使用して閉塞部を除去する際に、工具係止部に工具の先端部を係止させた状態でこれを打ち抜くことによって、衝撃力が加えられた瞬間に該先端部が滑るのを防止でき、叩き損じる回数を減らすことができるので、この作業効率を向上させられる。 According to the present invention, when removing the blocking portion from the inside of the box body using the tool, the impact force is reduced by punching out the tool locking portion with the tip of the tool locked. Since the tip can be prevented from slipping at the moment it is added, and the number of times it is missed can be reduced, this work efficiency can be improved.

以下、実施例を挙げて本発明を更に詳細に説明する。図１は、本発明に係る配線用ボックスＢの斜視図であり、図２は、閉塞部を除去する前のボックスＢを、図３に示すボックスＢのＸ−Ｘ線で切断した断面図に相当する図であり、図３は、軽量間仕切壁Ｗ内に配設された状態のボックスＢの一部を破断した正面図であって、後述するように、ボックスＢに電線Ｌを追加配線する様子をも示す図である。最初に図１ないし図３を参照して、本発明に係るボックスＢについて、そのボックス本体１０の構成を中心に説明する。 Hereinafter, the present invention will be described in more detail with reference to examples. FIG. 1 is a perspective view of a wiring box B according to the present invention, and FIG. 2 is a cross-sectional view of the box B before removing the blocking portion taken along line XX of the box B shown in FIG. FIG. 3 is a front view in which a part of the box B in a state of being disposed in the lightweight partition wall W is broken, and an electric wire L is additionally wired to the box B as will be described later. It is a figure which also shows a mode. First, with reference to FIG. 1 thru | or FIG. 3, it demonstrates centering around the structure of the box main body 10 about the box B which concerns on this invention.

ボックスＢは、配線用ボックスとして本来の機能を果たす前面が開口した箱体であって、略正方形の底壁部１１と、この４辺から垂直に立設された略長方形の側壁部１２と、これらの各壁部１１，１２にそれぞれ形成された透孔形成予定部とを備えたボックス本体１０に、後述するように、ボックスＢを配設するための各種取付部等が形成された構造である。透孔形成予定部は、ボックスＢに配線・配管材を接続させる場合に、当該部分のほぼ円形の閉塞部１３を除去して透孔Ｈが形成される部分であって、透孔Ｈの形成が必要ない場合には、そのままの閉塞状態が維持される。そして、ボックス本体１０の底壁部１１及び各側壁部１２に形成される各透孔Ｈの内周面は、それぞれの底壁部１１及び側壁部１２に対して垂直に形成されているのに対して、各閉塞部１３の外周面は鈍角状に形成されていて、該閉塞部１３を取囲む底壁部１１及び側壁部１２の各外壁面１１ａ，１２ａと閉塞部１３の外壁面１３ａとの間には、鋭角の切込み状の溝１４が形成されており、この結果、前記閉塞部１３は、この溝１４を形成する底壁を薄肉連結部１５として（図８参照）、これを介してボックスＢの底壁部１１及び各側壁部１２に隙間なく連結されている。また、閉塞部１３を取囲む底壁部１１及び側壁部１２の各内壁面１１ｂ，１２ｂと、閉塞部１３の内壁面１３ｂと、これらに接続する薄肉連結部１５の内壁面とは、ほぼ平坦状に、凹凸が形成されずに連続して連結されている。なお、閉塞部１３の肉厚は、底壁部１１及び側壁部１２の肉厚よりも僅かに薄くなっているため、閉塞部１３の外壁面１３ａは、ボックス本体１０の底壁部１１及び側壁部１２の各外壁面１１ａ，１２ａよりも僅かに凹んで形成され、これにより底壁部１１及び側壁部１２の各外壁面１１ａ，１２ａと閉塞部１３の外壁面１３ａとの間に段差が生じているが、これは、閉塞部１３をボックス本体１０の外方からドライバやハンマー等の工具で衝撃力を加える際の作用点の位置決めを行い易くするためのものである。 The box B is a box with an open front surface that performs its original function as a wiring box, and includes a substantially square bottom wall portion 11, a substantially rectangular side wall portion 12 erected vertically from these four sides, As will be described later, the box main body 10 provided with the through-hole formation scheduled portions formed in the respective wall portions 11 and 12 has a structure in which various attachment portions for arranging the box B are formed. is there. The through-hole formation scheduled portion is a portion where, when wiring / piping material is connected to the box B, the through-hole H is formed by removing the substantially circular blocking portion 13 of the portion, and the formation of the through-hole H If this is not necessary, the closed state is maintained as it is. And although the inner peripheral surface of each through-hole H formed in the bottom wall part 11 and each side wall part 12 of the box main body 10 is formed perpendicularly | vertically with respect to each bottom wall part 11 and side wall part 12, respectively. On the other hand, the outer peripheral surface of each closing portion 13 is formed in an obtuse angle, and the outer wall surfaces 11a and 12a of the bottom wall portion 11 and the side wall portion 12 surrounding the closing portion 13 and the outer wall surface 13a of the closing portion 13 In between, an acute cut groove 14 is formed. As a result, the closing portion 13 uses the bottom wall forming the groove 14 as a thin-walled connecting portion 15 (see FIG. 8). The box B is connected to the bottom wall portion 11 and the side wall portions 12 without a gap. Further, the inner wall surfaces 11b and 12b of the bottom wall portion 11 and the side wall portion 12 surrounding the closing portion 13, the inner wall surface 13b of the closing portion 13, and the inner wall surface of the thin connecting portion 15 connected thereto are substantially flat. Are connected continuously without forming irregularities. Since the wall thickness of the closing part 13 is slightly thinner than the wall thickness of the bottom wall part 11 and the side wall part 12, the outer wall surface 13a of the closing part 13 is the bottom wall part 11 and the side wall of the box body 10. The outer wall surfaces 11 a and 12 a of the portion 12 are slightly recessed from the outer wall surfaces 11 a and 12 a, thereby creating a step between the outer wall surfaces 11 a and 12 a of the bottom wall portion 11 and the side wall portion 12 and the outer wall surface 13 a of the closing portion 13. However, this is intended to facilitate positioning of the action point when the impacting force is applied to the closing portion 13 from the outside of the box body 10 with a tool such as a screwdriver or a hammer.

そして、ボックス本体１０には、配線用のボックスＢとしてこれを複数の環境下で使用すべく、各種の取付部等が形成されている。図１の４１は、軽量間仕切壁Ｗ内にボックスＢを配設するために、後述するボックス固定具４にボックスＢを取付けるためのビス孔である。そして、４４は、ボックス本体１０の開口部１７の前面に取付けられるボックスカバー５の取付孔が形成されたボス部であって、該開口部１７の対角線より少し中央寄りに傾いた２箇所に形成されている。該ボックスカバー５は、ボックス本体１０の開口部１７を覆う本体板部５ａと、コンセント金具等の配線器具（図示せず）の操作部を壁材２の貫通孔２ａから手前側に臨ませるために、該本体板部５ａの中央に形成されたほぼトラック形状の開口部５ｂと、開口部の周縁から手前側に突設された環状壁部５ｃとを備えている。前記本体板部５ａの各コーナー部には、ボックスＢに対する該ボックスカバー５の取付位置を修正可能にして、常にボックスカバー５を正規位置に配置するために、円弧状の長孔が形成され、ボックスカバー５は、ビス５２により、該長孔を介してボックスＢの前記ボス部４４に螺合されて取り付けられる。なお、環状壁部５ｃの突出長は、ボックスＢをコンクリート内に埋設させて使用する場合には、モルタルの塗代厚さに相当するように形成されている。 The box body 10 is formed with various attachment portions and the like so as to be used as a wiring box B in a plurality of environments. Reference numeral 41 in FIG. 1 denotes a screw hole for attaching the box B to the box fixture 4 to be described later in order to arrange the box B in the lightweight partition wall W. Reference numeral 44 denotes a boss portion in which a mounting hole of the box cover 5 to be attached to the front surface of the opening portion 17 of the box body 10 is formed, and is formed at two positions inclined slightly toward the center from the diagonal line of the opening portion 17. Has been. The box cover 5 has a main body plate portion 5a covering the opening 17 of the box main body 10 and an operation portion of a wiring device (not shown) such as a socket fitting facing the front side from the through hole 2a of the wall material 2. In addition, a substantially track-shaped opening 5b formed at the center of the main body plate 5a and an annular wall 5c protruding from the periphery of the opening toward the near side are provided. In each corner portion of the main body plate portion 5a, an arc-shaped long hole is formed so that the mounting position of the box cover 5 with respect to the box B can be corrected and the box cover 5 is always arranged at a normal position. The box cover 5 is attached by screwing to the boss portion 44 of the box B through the elongated hole with a screw 52. The protruding length of the annular wall 5c is formed to correspond to the coating thickness of the mortar when the box B is used while being embedded in concrete.

また、図１の４２、４３は、コンクリート内にボックスＢを埋設した状態で配設する場合に備えて形成されたボス部と、取付脚部とである。ボス部４２は、ボックス本体１０の底壁部１１の中央部に形成されており、ボックスＢがコンクリート壁に埋設される構造においては、コンクリート打設前にスタットボルトによりボックスＢを型枠の側に引き寄せて、ボックスＢの開口端面を型枠の裏面に密着させるべく形成されている。該ボス部４２は、その中央部のねじ孔に前記スタットボルトを螺合させる部分である。また、取付脚部４３は、横鉄筋に嵌め込んでこれに係止させる部分である。なお、図１を除く各図面の中には、図を解り易くするために、前記ビス孔４１やボス部４２等の図示を適宜省略したものがある。 Moreover, 42 and 43 of FIG. 1 are the boss | hub part formed in preparation for the case where it arrange | positions in the state which embed | buried the box B in the concrete, and an attachment leg part. The boss portion 42 is formed at the center of the bottom wall portion 11 of the box body 10, and in a structure in which the box B is embedded in the concrete wall, the box B is placed on the side of the formwork by a stat bolt before placing the concrete. The opening end surface of the box B is formed so as to be in close contact with the back surface of the formwork. The boss portion 42 is a portion for screwing the stat bolt into the screw hole at the center thereof. Moreover, the attachment leg part 43 is a part engage | inserted in a horizontal rebar and latched to this. In addition, in each drawing excluding FIG. 1, illustration of the screw hole 41, the boss portion 42 and the like is appropriately omitted for easy understanding of the drawing.

そして、各側壁部１２に形成された閉塞部１３であって、薄肉連結部１５を介して、これら各側壁部１２の内壁面１２ｂと平坦状に連続する各閉塞部１３の内壁面１３ｂには、略正方形の小片状で、この平坦状の面から僅かに凸をなし、しかもボックス本体１０の開口部１７に臨む一辺に相当する部分が、それぞれ半円状に欠落され、凸面と垂直な段差を有する工具係止部１６が形成されている。各工具係止部１６は、その正方形の４辺に相当する各端縁が、長方形の側壁部１２の各辺と平行に配置され、閉塞部１３の内壁面１３ｂの中心からずれた位置に形成されている。即ち、半円状の凹部１６ａが形成された１辺と対向する底壁部１１の側に臨む端縁が、薄肉連結部１５と接続する閉塞部１３の外周縁近傍の前記内壁面１３ｂ上に配置されている。前記凹部１６ａがボックス本体１０の開口部１７と同じ側に開口する半円形状であることは、ドライバの軸部の断面が円形であることと、この先端部を開口部１７の側からボックス本体１０の内部に挿入して作業することに対応しており、半円状に欠落された凹面は、その周囲の閉塞部１３の内壁面１３ｂと連続して、平坦状に形成されている。 And it is the obstruction | occlusion part 13 formed in each side wall part 12, Comprising: The inner wall surface 13b of each obstruction | occlusion part 13 continued flatly with the inner wall surface 12b of each of these side wall parts 12 via the thin connection part 15. In the shape of a substantially square piece, a slight convex is formed from this flat surface, and a portion corresponding to one side facing the opening 17 of the box body 10 is missing in a semicircular shape and is perpendicular to the convex surface. A tool locking portion 16 having a step is formed. Each tool locking portion 16 is formed so that each edge corresponding to the four sides of the square is arranged in parallel with each side of the rectangular side wall portion 12 and is shifted from the center of the inner wall surface 13b of the closing portion 13. Has been. That is, the edge facing the side of the bottom wall portion 11 facing one side where the semicircular recess 16a is formed is on the inner wall surface 13b in the vicinity of the outer peripheral edge of the closing portion 13 connected to the thin connecting portion 15. Has been placed. The recess 16a has a semicircular shape that opens to the same side as the opening 17 of the box main body 10 because the cross section of the shaft portion of the driver is circular, and this tip portion extends from the opening 17 side to the box main body. The concave surface missing in a semicircular shape is formed in a flat shape continuously with the inner wall surface 13b of the surrounding closed portion 13.

また、底壁部１１に形成された各閉塞部１３の内壁面１３ｂにも、前記各側壁部１２の閉塞部１３の内壁面１３ｂに形成されたのと同様の工具係止部１６が、それぞれ突設されている。側壁部１２の内壁面１２ｂと連続する平坦面に突設された各工具係止部１６と、底壁部１１の内壁面１１ｂと連続する平坦面に突設された各工具係止部１６との違いは、前記半円形状の凹部１６ａの開口方向である。即ち、底壁部１１の工具係止部１６の前記凹部１６ａの開口方向は、ボックス本体１０の配設状態において水平方向に沿った底壁部１１の中心線に対峙する方向であって、該凹部１６ａが形成された１辺と対向する端縁が、前記中心線からなるべく遠ざかるように閉塞部１３の中心からずれて、その内壁面１３ｂの外周縁より少し内側に配置して形成されている。 Also, the inner wall surface 13b of each closing part 13 formed on the bottom wall part 11 has a tool locking part 16 similar to that formed on the inner wall surface 13b of the closing part 13 of each side wall part 12, respectively. Projected. Each tool locking portion 16 protruding on a flat surface continuous with the inner wall surface 12b of the side wall portion 12, and each tool locking portion 16 protruding on a flat surface continuous with the inner wall surface 11b of the bottom wall portion 11; The difference is the opening direction of the semicircular recess 16a. That is, the opening direction of the concave portion 16a of the tool locking portion 16 of the bottom wall portion 11 is a direction opposite to the center line of the bottom wall portion 11 along the horizontal direction in the arrangement state of the box body 10, An edge facing one side where the recess 16a is formed is formed so as to be shifted from the center of the closing portion 13 so as to be as far as possible from the center line, and to be disposed slightly inside the outer peripheral edge of the inner wall surface 13b. .

本実施形態の作用を説明するに当り、まず、電線を配線する前のボックスＢの軽量間仕切壁Ｗの内部空間への配設状態について簡単に説明する。図４は、ボックスＢの軽量間仕切壁Ｗの内部空間への配設状態を示す斜視図であって、図５は、同じく平面図である。該軽量間仕切壁Ｗは、軽量型鋼１に２枚の壁材２を対向させて立設した壁体３によって、建物内の空間を区画するものであって、例えば、開口部１ａと、該開口部１ａに相対向する背面板部１ｂと、一対の側板部１ｃとからなる横断面がほぼ「コ」の字形状の軽量型鋼１の両側を、一対の壁材２で挟むようにして立設して形成されるものである。また、軽量型鋼１の背面板部１ｂの所定位置には、ボックス固定具４の一端部であって、フランジ状の取付部が固定され、所定間隔をおいてこれに隣接して配置されたもう１つの軽量型鋼１には、ボックス固定具４の他端部が固定されており、これにより、ボックス固定具４が、２つの軽量型鋼１の間に水平に架設される。ボックス固定具４は、ボックスＢをその取付板部４ａに取付けることにより、前記内部空間の所定位置にボックスＢを固定する金板であって、ボックスＢは、ボックス固定具４の取付板部４ａに螺合される。 In describing the operation of the present embodiment, first, the arrangement state of the lightweight partition wall W of the box B before wiring the electric wire will be briefly described. FIG. 4 is a perspective view showing an arrangement state of the lightweight partition walls W of the box B in the internal space, and FIG. 5 is also a plan view. The lightweight partition wall W partitions a space in a building by a wall body 3 erected with two wall materials 2 facing a lightweight steel plate 1. For example, the lightweight partition wall W includes an opening 1 a and the opening. A light-weight steel plate 1 having a substantially U-shaped cross section composed of a back plate portion 1b opposite to the portion 1a and a pair of side plate portions 1c is erected so as to be sandwiched between a pair of wall materials 2 Is formed. Further, at a predetermined position of the back plate portion 1b of the lightweight steel 1, an end portion of the box fixture 4, which is a flange-shaped attachment portion, is fixed and is disposed adjacent to the flange-shaped attachment portion at a predetermined interval. The other end of the box fixture 4 is fixed to one lightweight mold steel 1, whereby the box fixture 4 is laid horizontally between the two lightweight mold steels 1. The box fixture 4 is a metal plate that fixes the box B to a predetermined position in the internal space by attaching the box B to the mounting plate portion 4a. The box B is a mounting plate portion 4a of the box fixture 4. Screwed onto.

この軽量間仕切壁Ｗ内へのボックスＢの配設は、例えば次の手順で行われる。まず、電線Ｌ₀を引き込む予定の閉塞部１３の外壁面１３ａをハンマーで殴打してこの閉塞部１３を打ち抜いて除去する（図１参照）。予め２つの軽量型鋼１間に架設されたボックス固定具４の前記取付板部４ａに、ボックスＢの底壁部１１の外壁面１１ａを当接させながら、ビス５１を用いて前記開口部１７の側から前記ビス孔４１を介してこれを固定する。そして、前記閉塞部１３を除去して形成された透孔Ｈに、電線管Ｍを接続するコネクタＣを取付ける。コネクタＣは、コネクタ本体とナット部材とスリーブとからなり、コネクタ本体の雄ねじ部を、ボックスＢの外側から透孔Ｈを介して前記ボックス本体１０内に挿通し、該ボックス本体１０の内部にて、これとナット部材とを螺合して取付ける。コネクタ本体及びナット部材は、透孔Ｈの内周面と連続する側壁部１２の外壁面１２ａ及び内壁面１２ｂに当接する平らな当接面を有しているが、この取付作業の際、透孔Ｈを形成した後の側壁部１２の内壁面１２ｂには、閉塞部１３の内壁面１３ｂに形成されていた前記工具係止部１６の突部が残存せず、両者の接続部分にがたつきが生じにくくなって、電線管Ｍの接続状態が良好に維持される。 Arrangement of the box B in the lightweight partition wall W is performed by the following procedure, for example. First, it beats the outer wall surface 13a of the closed portion 13 that will draw the wire L ₀ with a hammer to remove by punching the closed portion 13 (see FIG. 1). While the outer wall surface 11a of the bottom wall portion 11 of the box B is brought into contact with the mounting plate portion 4a of the box fixture 4 previously laid between the two lightweight steels 1, the opening portion 17 is formed using screws 51. This is fixed through the screw hole 41 from the side. And the connector C which connects the conduit M is attached to the through-hole H formed by removing the blocking portion 13. The connector C includes a connector main body, a nut member, and a sleeve, and the male screw portion of the connector main body is inserted into the box main body 10 from the outside of the box B through the through hole H, and inside the box main body 10. The nut member is screwed and attached. The connector main body and the nut member have flat contact surfaces that contact the outer wall surface 12a and the inner wall surface 12b of the side wall portion 12 continuous with the inner peripheral surface of the through hole H. On the inner wall surface 12b of the side wall portion 12 after the hole H is formed, the projection of the tool locking portion 16 formed on the inner wall surface 13b of the closing portion 13 does not remain, and the connecting portion of the both is hung. Sticking is less likely to occur, and the connection state of the conduit M is maintained well.

そして、電線Ｌ₀を収容した電線管Ｍを前記スリーブを介してコネクタＣに取付け、コネクタＣ及び透孔Ｈを介して、ボックス本体１０の内部に前記電線Ｌ₀を挿通する。ボックス本体１０の開口端面には、カバー取付用のボス部４４に対してボックスカバー５がビス止めされており、ボックス本体１０内の電線Ｌ₀を、その開口部１７及び前記カバー５の開口部５ｂを介して手前側に引き出す。そして、電線Ｌ₀が引き出された状態のボックスカバー５の環状壁部５ｃが、壁材２の貫通孔２ａを貫通するように位置合わせして、前記軽量型鋼１間に壁材２を立設し、壁材２の外側において、前記電線Ｌ₀と所定の配線器具とを接続する。電線Ｌ₀の引き出し部をボックス本体１０内に収容しながら、前記カバー５を介してボックスＢの前面に前記配線器具を固定した後に、その前面に更に化粧プレート等を取付け、室内で利用可能とする。なお、図５の４８の２点鎖線は、配線作業が仕上がった状態の外形線を示す。 Then, the conduit M containing the electric wire L ₀ is attached to the connector C via the sleeve, and the electric wire L ₀ is inserted into the box body 10 via the connector C and the through hole H. The box cover 5 is screwed to the opening end face of the box main body 10 with respect to the cover mounting boss portion 44, and the electric wire L ₀ in the box main body 10 is connected to the opening 17 and the opening of the cover 5. Pull out to the near side through 5b. The annular wall portion 5c of the box cover 5 in a state where the wire L ₀ is pulled out, are aligned so as to penetrate through the through hole 2a of the wall material 2, vertically arranged wall material 2 between the light-section steel 1 and, outside the wall material 2, connecting the electric wires L ₀ and a predetermined wiring devices. After the wiring device is fixed to the front surface of the box B through the cover 5 while the lead portion of the electric wire L ₀ is accommodated in the box body 10, a decorative plate or the like is further attached to the front surface so that it can be used indoors. To do. Note that a two-dot chain line 48 in FIG. 5 indicates an outline in a state where the wiring work is finished.

そして、上記したように室内が区画されて、図４に示されるように、ボックスＢが配設された状態から、例えば配線忘れに気付き、新たな電線Ｌを配線すべく「落し込み」による方法でボックス本体１０の内部にこれを引き込む場合には、配設状態でボックスＢの上面をなす側壁部１２に形成された閉塞部１３を除去する必要があって、壁材２を取外す作業を避けて該閉塞部１３を除去するためには、これをボックス本体１０の内方から打ち抜くしか方法が無い。軽量間仕切壁Ｗの場合には、新に追加する電線Ｌの先端にメンセンジャーワイヤ（図示せず）等を接続して、該ワイヤによって、透孔Ｈを介して「裸電線」状態のままボックス本体１０内に引き込めばよい。図６は、ボックスＢの配設後に、ボックス本体１０の内側から閉塞部１３を打ち抜いて除去する作業を示す斜視図であって、図７は、図６の状態のボックスＢを、図３に示すボックスＢのＺ−Ｚ線で切断した断面図に相当する図であり、図８は、図７の部分拡大図であって、閉塞部１３の工具係止部１６にプラスドライバ４７を係止した部分を拡大図示している。 Then, as described above, as shown in FIG. 4, for example, when the box B is arranged, the user notices forgetting to wire, and “drops” to wire a new wire L, as shown in FIG. When this is pulled into the inside of the box body 10, it is necessary to remove the blocking portion 13 formed on the side wall portion 12 forming the upper surface of the box B in the installed state, and the work of removing the wall material 2 is avoided. The only way to remove the blocking portion 13 is to punch it out from the inside of the box body 10. In the case of the lightweight partition wall W, a messenger wire (not shown) or the like is connected to the tip of the newly added electric wire L, and the box remains in the “bare electric wire” state through the through hole H by the wire. What is necessary is just to retract in the main body 10. FIG. 6 is a perspective view showing an operation of punching and removing the blocking portion 13 from the inside of the box body 10 after the box B is arranged. FIG. 7 shows the box B in the state of FIG. FIG. 8 is a partial enlarged view of FIG. 7, in which the screwdriver 47 is locked to the tool locking portion 16 of the closing portion 13. The enlarged part is shown in an enlarged view.

前述した配線器具等を適宜取外した後に、図６ないし図８に示されるように、前記貫通孔２ａを介して室内側に臨むボックスカバー５の開口部５ｂから、プラスドライバ４７の軸部をボックス本体１０の内部に挿入し、その先端部４７ａを、閉塞部１３の内壁面１３ｂに突設された前記工具係止部１６の段差面に係止させる。更に詳しく説明すれば、工具係止部１６の半円状の凹部１６ａに前記先端部４７ａを当接させ、棒状の先端部４７ａを半円状の該凹部１６ａに部分的に嵌合させた状態で、ドライバ４７の把持部の端面をハンマー４５で殴打して、閉塞部１３を外側に向けて打ち抜く衝撃力を作用させる。前記凹部１６ａに対して僅かに突出して段差をなす前記工具係止部１６の突出厚さｔは、１〜２（ｍｍ）程度であって、前記先端部４７ａを前記凹部１６ａに部分的に嵌合させるのに都合の良い寸法に形成されており、これにより、プラスドライバ４７の先端部４７ａが工具係止部１６に係止されるだけでなく、凹部１６ａに部分的に嵌合されることが相乗して、衝撃力が作用する瞬間の該先端部４７ａの係止状態が、滑ることなく良好に維持され、従って、ボックス本体１０の内側からの閉塞部１３の除去作業を効率的に行うことができる。また、前記突出厚さｔが、１〜２（ｍｍ）程度の厚さならば、ボックス本体１０内における電気工事において、電線Ｌが前記工具係止部１６に引っ掛かる不具合が無く、作業性が良い。なお、閉塞部１３を速やかに除去した後には、前述した方法で新たな電線Ｌをボックス本体１０の内部に引き込み、同じ方法で配線する。 After appropriately removing the above-described wiring device or the like, as shown in FIGS. 6 to 8, the shaft portion of the plus driver 47 is attached to the box from the opening portion 5b of the box cover 5 facing the indoor side through the through hole 2a. Inserted inside the main body 10, the tip 47 a is locked to the stepped surface of the tool locking portion 16 projecting from the inner wall surface 13 b of the closing portion 13. More specifically, the tip 47a is brought into contact with the semicircular recess 16a of the tool locking portion 16, and the rod-shaped tip 47a is partially fitted into the semicircular recess 16a. Then, the end face of the gripping portion of the driver 47 is beaten with a hammer 45, and an impact force is applied to punch the closing portion 13 outward. The protrusion thickness t of the tool locking portion 16 that slightly protrudes from the recess 16a and forms a step is about 1 to 2 (mm), and the tip portion 47a is partially fitted into the recess 16a. It is formed in a size that is convenient for fitting, so that the tip portion 47a of the Phillips screwdriver 47 is not only locked to the tool locking portion 16 but also partially fitted to the recess 16a. Synergistically, the locked state of the tip portion 47a at the moment when the impact force is applied is satisfactorily maintained without slipping. Therefore, the removal operation of the blocking portion 13 from the inside of the box body 10 is efficiently performed. be able to. Further, if the protruding thickness t is about 1 to 2 (mm), there is no problem that the electric wire L is caught on the tool locking portion 16 in the electrical work in the box body 10, and the workability is good. . In addition, after removing the obstruction | occlusion part 13 rapidly, the new electric wire L is drawn in the inside of the box main body 10 by the method mentioned above, and it wires by the same method.

また、まず最初に閉塞部１３を打ち抜くべく衝撃力を作用させた瞬間には、該衝撃力は、工具係止部１６が形成された閉塞部１３を介して前記凹部１６ａに最も近接する前記薄肉連結部１５の衝撃力集中作用部１５ａに集中的に作用する。本実施形態のボックス本体１０では、工具係止部１６は、前記内壁面１３ｂにおいて、薄肉連結部１５と接続する閉塞部１３の外周縁より少し内側で、しかも底壁部１１に近い位置に突設されており（図２及び図８参照）、前記薄肉連結部１５において、当該部位に近接配置する衝撃力集中作用部１５ａのみが部分的に破断され易い状態となる。こうして、前記衝撃力集中作用部１５ａにて薄肉連結部１５が部分的に破断された後には、当該破断部にプラスドライバ４７の先端部４７ａを挿入してこじることにより、残りの薄肉連結部１５は、周方向に沿って順次全周に亘って破断され、容易に除去作業を行える。なお、図７及び図８において、一点鎖線で示した１３’と二点鎖線で示した１３''とは、上記したように、ほぼ全周に亘って破断された状態の閉塞部と、除去後の閉塞片とを示す。 Further, at the moment when an impact force is first applied to punch out the closing portion 13, the impact force is applied to the thin wall closest to the recess 16a via the closing portion 13 in which the tool locking portion 16 is formed. It acts on the impact force concentration action portion 15a of the connecting portion 15 in a concentrated manner. In the box body 10 of the present embodiment, the tool locking portion 16 protrudes at a position slightly inside the outer peripheral edge of the closing portion 13 connected to the thin-walled connecting portion 15 and close to the bottom wall portion 11 on the inner wall surface 13b. 2 (see FIG. 2 and FIG. 8), in the thin-walled connecting portion 15, only the impact force concentration acting portion 15a disposed close to the portion is in a state where it is easily broken. Thus, after the thin-walled connecting portion 15 is partially broken by the impact force concentration acting portion 15a, the tip portion 47a of the plus driver 47 is inserted into the broken portion, and the remaining thin-walled connecting portion 15 is broken. Are sequentially broken along the circumferential direction over the entire circumference and can be easily removed. In FIGS. 7 and 8, 13 ′ indicated by the alternate long and short dash line and 13 ″ indicated by the alternate long and two short dashes line are, as described above, a closed portion in a state of being almost entirely broken, and removal. The back obstruction piece is shown.

また、ボックス本体１０の側壁部１２と底壁部１１とがほぼ垂直をなして接続する部分は、側壁部１２において、前記開口部１７から底壁部１１に向かうに従って、曲げ剛性が最も大きい部分である。上述したとおり、前記衝撃力集中作用部１５ａは、側壁部１２に形成された閉塞部１３と接続する薄肉連結部１５において、底壁部１１に近接するボックス本体１０の奥側に配置されており、当該部位の曲げ剛性が大きいことにより、衝撃力が作用する際の側壁部１２の撓みが、最小限に止められる。よって、前記衝撃力の衝撃力集中作用部１５ａへの集中度合を高め、速やかに部分破断される。 Further, the portion where the side wall portion 12 and the bottom wall portion 11 of the box body 10 are connected substantially perpendicularly is the portion of the side wall portion 12 that has the largest bending rigidity from the opening 17 toward the bottom wall portion 11. It is. As described above, the impact force concentration action portion 15 a is disposed on the back side of the box body 10 close to the bottom wall portion 11 in the thin-walled connecting portion 15 connected to the closing portion 13 formed on the side wall portion 12. Since the bending rigidity of the part is large, the bending of the side wall part 12 when the impact force is applied is minimized. Therefore, the degree of concentration of the impact force on the impact force concentration action portion 15a is increased, and the partial break is quickly made.

なお、上記した作用説明では、軽量間仕切壁Ｗにおいて、配線忘れにより、「落し込み」による方法で、配設状態でボックス本体１０の上面をなす側壁部１２に形成された閉塞部１３を除去する方法について説明したが、ボックスＢの配設後に閉塞部１３を除去する他の原因として、施主側の都合により配線変更を余儀なくされる場合や、また、他の側壁部１２や、底壁部１１に形成された閉塞部１３を内側から打ち抜く除去作業を余儀なくされる場合にも実施可能である。底壁部１１に形成された閉塞部１３においても、薄肉連結部１５に近いその外周縁より少し内側であって、曲げ剛性がなるべく大きい側壁部１２に近い部位に、工具係止部１６が配置されており、側壁部１２に形成されている場合に準じた作用効果が奏される。また、工具係止部は、閉塞部の内壁面上において、上述したのとは異なる位置に配置して突設されたものでも構わず、この場合にも、プラスドライバの先端部が工具係止部に係止されることにより、前記衝撃力の加え損じを減少させる効果がある。図９は、その具体例であって、前記工具係止部１６と同形状の工具係止部２６が、閉塞部１３の内壁面１３ｂにおいて、前記工具係止部１６とは異なる中心部に突設された例を示す図である。 In the above description of the operation, the obstructing portion 13 formed on the side wall portion 12 forming the upper surface of the box body 10 in the installed state is removed by the method of “dropping” in the lightweight partition wall W by forgetting the wiring. Although the method has been described, as another reason for removing the blocking portion 13 after the box B is disposed, when the wiring is forced to change due to the convenience of the owner side, or the other side wall portion 12 or the bottom wall portion 11 It is also possible to carry out the removal work of punching out the closed portion 13 formed in the inside from the inside. Also in the closing part 13 formed in the bottom wall part 11, the tool locking part 16 is arranged at a position slightly inside the outer peripheral edge close to the thin-walled connecting part 15 and close to the side wall part 12 having as much bending rigidity as possible. Thus, the same effects as when formed on the side wall portion 12 are achieved. In addition, the tool locking portion may be provided on the inner wall surface of the closing portion so as to protrude from the position different from that described above. By being locked to the portion, there is an effect of reducing the addition loss of the impact force. FIG. 9 is a specific example thereof, in which the tool locking portion 26 having the same shape as the tool locking portion 16 protrudes into a central portion different from the tool locking portion 16 on the inner wall surface 13 b of the closing portion 13. It is a figure which shows the example provided.

また、図１０及び図１１は、上述した実施形態と異なる形状の各工具係止部３６，４６を説明する図であって、上述した実施形態のボックス本体１０にそれぞれ対応する部分には同符号を付した。それぞれの（イ)は、側壁部１２に形成された閉塞部１３を、その内壁面１３ｂの側から見た正面図であって、それぞれの（ロ)は、それぞれの（イ）のＹ₁−Ｙ₁線断面図及びＹ₂−Ｙ₂線断面図である。但し、閉塞部１３、側壁部１２、底壁部１１等のボックス本体１０の主要部以外の図示は省略した。図示されるとおり、図１０の閉塞部１３の内壁面１３ｂに形成された工具係止部３６と、図１１の同じく、工具係止部４６とは、それぞれ凹部と、シボ状をなす係止部であって、これらの構成でプラスドライバ等の工具先端部を係止させることも可能である。そして、工具係止部３６が「浅い凹部」である場合には、ボックス本体１０内部の電線が、該工具係止部３６に引っ掛からないという利点があり、工具係止部４６がシボ状の微細な凹凸の場合には、前記電線が該工具係止部４６に引っ掛かりにくいことに加えて、前記微細な凹凸が、他の平坦な部分に比較して光沢が異なることにより、閉塞部の位置が分かり易くなり、比較的暗い現場での作業性が損われにくいという利点がある。また、シボ状の微細な凹凸に替えて、シボ状の微細な凹凸よりも広い間隔を有する複数の凹凸部が一ヶ所に集中して形成された凹凸面がボックス本体１０の底壁部１１又は側壁部１２の内壁面に形成された構成にすると、連続して複数存在する凹凸部のいずれかに工具の先端を係止させることができる。 10 and 11 are diagrams for explaining the tool locking portions 36 and 46 having shapes different from those of the above-described embodiment, and parts corresponding to the box body 10 of the above-described embodiment are denoted by the same reference numerals. Was attached. Each (b) is a front view of the closed part 13 formed on the side wall part 12 as viewed from the inner wall surface 13b side, and each (b) is the Y ₁ − of each (b). _They are a Y ₁ line sectional view and a Y ₂ -Y ₂ line sectional view. However, illustrations other than the main part of the box body 10 such as the closing part 13, the side wall part 12, and the bottom wall part 11 are omitted. As shown in the figure, the tool locking portion 36 formed on the inner wall surface 13b of the closing portion 13 in FIG. 10 and the tool locking portion 46 in FIG. And it is also possible to latch tool front-end | tip parts, such as a Phillips screwdriver, with these structures. When the tool locking portion 36 is a “shallow concave portion”, there is an advantage that the electric wire inside the box body 10 is not caught on the tool locking portion 36, and the tool locking portion 46 has a textured fine shape. In the case of unevenness, the wire is not easily caught by the tool locking portion 46, and the fine unevenness is different in gloss compared to other flat portions, so that the position of the blocking portion is There is an advantage that it becomes easy to understand and the workability in a relatively dark field is hardly impaired. In addition, instead of the textured fine irregularities, the irregular surface formed by concentrating a plurality of irregularities having a wider interval than the textured fine irregularities in one place is the bottom wall portion 11 of the box body 10 or If it is set as the structure formed in the inner wall face of the side wall part 12, the front-end | tip of a tool can be latched to either of the uneven | corrugated | grooved parts which exist continuously severally.

また、図１２及び図１３には、本発明の参考例の工具係止部６１が示されている。図１２（イ）は、閉塞部１３の周縁に形成された工具係止部６１を、閉塞部１３の内壁面１３ｂの側から見た正面図であり、同（ロ）は、同（イ）のＹ₃−Ｙ₃線断面図であり、図１３は、同じく工具係止部６１を有する閉塞部１３の一部を破断した部分斜視図である。本参考例の工具係止部６１は、閉塞部１３の内壁面１３ｂ側の周縁部に形成される環状段差部が環状突起体で構成された例であって、環状突起体から成る工具係止部６１の内側にドライバ４７の先端部４７ａを係止させた状態で、閉塞部１３に衝撃力を加えて、閉塞部１３を除去する。工具係止部６１が環状突起体で構成されるために、周方向のどの位置においても、ドライバ４７の先端部４７ａを係止させられ、しかも係止力が大きいために、一度の操作で確実に閉塞部１３を除去できる利点がある。 12 and 13 show a tool locking portion 61 of a reference example of the present invention . FIG. 12 (a) is a front view of the tool locking portion 61 formed on the periphery of the closing portion 13 as viewed from the inner wall surface 13b side of the closing portion 13, and FIG. a of Y ₃ -Y ₃ line cross-sectional view, and FIG. 13 is a likewise partially broken perspective view of part of the closing portion 13 having a tool engaging portion 61. The tool locking portion 61 of the present reference example is an example in which the annular step portion formed on the peripheral portion on the inner wall surface 13b side of the closing portion 13 is configured by an annular protrusion, and the tool locking formed of the annular protrusion is In a state where the tip portion 47 a of the driver 47 is locked inside the portion 61, an impact force is applied to the closing portion 13 to remove the closing portion 13. Since the tool locking portion 61 is formed of an annular protrusion, the tip portion 47a of the driver 47 can be locked at any position in the circumferential direction, and the locking force is large, so that it can be reliably performed with a single operation. There is an advantage that the blocking portion 13 can be removed.

また、閉塞部１３の内壁面１３ｂ側の周縁部に形成される環状段差部の別の例としては、閉塞部１３の内壁面１３ｂが、ボックスＢの底壁部１１の内壁面１１ｂ又は側壁部１２の内壁面１２ｂよりも低く形成されることにより、前記閉塞部１３の周縁部に凹状の環状段差部を形成したものが挙げられる。この凹状の環状段差部であっても、周方向のどの位置においても工具を確実に係止させられる。 Further, as another example of the annular stepped portion formed on the peripheral edge portion on the inner wall surface 13 b side of the closing portion 13, the inner wall surface 13 b of the closing portion 13 is the inner wall surface 11 b or the side wall portion of the bottom wall portion 11 of the box B. By forming the lower wall surface 12 lower than the inner wall surface 12 b, one in which a concave annular stepped portion is formed on the peripheral edge of the closing portion 13 can be cited. Even with this concave annular stepped portion, the tool can be reliably locked at any position in the circumferential direction.

本実施形態は、軽量間仕切壁Ｗのみならず、例えばコンクリート内に埋設する方法で、ボックスを配設する場合にも適用可能である。コンクリート壁内にボックスを埋設するには、コンクリートの打設に先立って、ボックス取付具によってボックスを縦横鉄筋に取付けて、電線を内部に収容した電線管をボックスに接続している。ここで、電線の不足等が発見された場合には、新たな閉塞部を除去して形成された透孔に電線管を接続する必要がある。この際に、ボックスの外側から閉塞部を打ち抜くと、透孔を閉塞していた閉塞片がボックス内に入り込んで、取り出しにくくなる。このため、上記の場合には、ボックス本体の内方から、工具の衝撃力を閉塞部に作用させて、該閉塞部をボックスの外方に除去飛散させるべく、上述の工具係止部が利用される。 The present embodiment can be applied not only to the lightweight partition wall W but also to the case where the box is arranged by, for example, a method of embedding in concrete. In order to embed a box in a concrete wall, prior to placing concrete, the box is attached to vertical and horizontal rebars by a box fixture, and a conduit containing the electric wire is connected to the box. Here, when a shortage of electric wires is discovered, it is necessary to connect a conduit to a through hole formed by removing a new blockage. At this time, if the closing portion is punched from the outside of the box, the closing piece that has closed the through hole enters the box, making it difficult to remove. For this reason, in the above case, the tool locking portion described above is used so that the impact force of the tool is applied to the closing portion from the inside of the box body, and the closing portion is removed and scattered to the outside of the box. Is done.

本発明に係る配線用ボックスＢの斜視図である。It is a perspective view of the box B for wiring which concerns on this invention. 配線用ボックスＢの閉塞部１３の部分の横断面図（図３のＸ−Ｘ線断面図）である。It is a cross-sectional view (XX sectional view taken on the line XX in FIG. 3) of the closed portion 13 of the wiring box B. 軽量間仕切壁Ｗ内に配設された状態のボックスＢの一部を破断した正面図である。It is the front view which fractured | ruptured some boxes B of the state arrange | positioned in the lightweight partition wall W. FIG. ボックスＢの軽量間仕切壁Ｗの内部空間への配設状態を示す斜視図である。It is a perspective view which shows the arrangement | positioning state to the internal space of the lightweight partition wall W of the box B. FIG. 同じく、平面図である。Similarly, it is a plan view. ボックスＢの配設後に、ボックス本体１０の内側から閉塞部１３を打ち抜いて除去する作業を示す斜視図である。FIG. 5 is a perspective view showing an operation of punching and removing the blocking portion 13 from the inside of the box body 10 after the box B is disposed. 図３のＺ−Ｚ線断面図である。FIG. 4 is a sectional view taken along line ZZ in FIG. 3. 閉塞部１３の工具係止部１６にプラスドライバ４７を係止した部位の図７の部分拡大図である。It is the elements on larger scale of FIG. 7 of the site | part which latched the plus driver 47 to the tool latching | locking part 16 of the obstruction | occlusion part 13. FIG. 前記工具係止部１６と同形状の工具係止部２６が、閉塞部１３の内壁面１３ｂにおいて、前記工具係止部１６とは異なる位置に突設された例を説明する図であって、側壁部１２に形成された閉塞部１３を、その内壁面１３ｂの側から見た正面図である。The tool locking part 26 having the same shape as the tool locking part 16 is a diagram for explaining an example in which the inner wall surface 13b of the closing part 13 protrudes at a position different from the tool locking part 16. It is the front view which looked at the obstruction | occlusion part 13 formed in the side wall part 12 from the inner wall surface 13b side. （イ)は、他の実施形態の工具係止部３６を説明する図であって、側壁部１２に形成された閉塞部１３を、その内壁面１３ｂの側から見た正面図であって、(ロ)は、（イ）のＹ₁−Ｙ₁線断面図である。(A) is a diagram for explaining the tool locking portion 36 of another embodiment, is a front view of the closing portion 13 formed on the side wall portion 12 as viewed from the inner wall surface 13b side, (B) is a cross-sectional view taken along line Y ₁ -Y ₁ of (A). （イ)は、他の実施形態の工具係止部４６を説明する図であって、側壁部１２に形成された閉塞部１３を、その内壁面１３ｂの側から見た正面図であって、(ロ)は、（イ）のＹ₂−Ｙ₂線断面図である。(A) is a diagram for explaining a tool locking portion 46 of another embodiment, is a front view of the closing portion 13 formed on the side wall portion 12 as viewed from the inner wall surface 13b side, (B) is a cross-sectional view taken along line Y ₂ -Y ₂ of (A). （イ）は、閉塞部１３の周縁に形成された工具係止部６１を、閉塞部１３の内壁面１３ｂの側から見た正面図であり、同（ロ）は、同（イ）のＹ₃−Ｙ₃線断面図である。(A) is the front view which looked at the tool latching | locking part 61 formed in the periphery of the obstruction | occlusion part 13 from the inner wall surface 13b side of the obstruction | occlusion part 13, and (b) is the Y of the same (b). FIG. _{3 is a} sectional view taken along line _3- Y3. 工具係止部６１を有する閉塞部１３の一部を破断した部分斜視図である。It is the fragmentary perspective view which fractured | ruptured a part of obstruction | occlusion part 13 which has the tool latching | locking part 61. FIG.

Ｂ：ボックス（配線用ボックス）
Ｈ：透孔
１０：ボックス本体
１１：底壁部
１１ｂ：底壁部の内壁面
１２：側壁部
１２ｂ：側壁部の内壁面
１３：閉塞部
１３ｂ：閉塞部の内壁面
１５：薄肉連結部
１６，２６，３６，４６，６１：工具係止部
４７：プラスドライバ（工具）
４７ａ：プラスドライバの先端部 B: Box (wiring box)
H: Through-hole 10: Box body 11: Bottom wall portion 11b: Inner wall surface of the bottom wall portion 12: Side wall portion 12b: Inner wall surface of the side wall portion 13: Closure portion 13b: Inner wall surface of the obstruction portion 15: Thin connection portion 16, 26, 36, 46, 61: Tool locking portion 47: Phillips screwdriver (tool)
47a: The tip of the Phillips screwdriver

Claims

A wiring box provided with a removable portion for forming a through-hole through which wiring / piping material is inserted, in the through-hole forming scheduled portion of the side wall portion constituting the box body having an opening on the front surface,
The closing part is formed integrally with the box body so as to be removed by applying an impact force from either the inside or the outside of the box body, closing the entire through hole formation scheduled part. When the tool inserted through the opening is inclined with respect to the side wall provided with the closing portion, the closing portion is removed by applying an impact force to the closing portion from the inside of the box body. ,
In order to prevent the tip portion of the tool from locking and sliding, a tool locking portion forming a step where the tool tip in an inclined posture is locked at a portion close to the bottom wall portion of the inner wall surface of the closing portion, Provided to be removable together with the blocking portion ,
The wiring box, wherein the tool locking portion protrudes inward of the box to form the step .

2. The wiring box according to claim 1, wherein the tool locking portion has a semicircular recess that corresponds to a tip shape of a plus driver that is a tool and opens toward an opening of the box body.

A wiring box provided with a removable portion for forming a through-hole through which wiring / piping material is inserted, in the through-hole forming scheduled portion of the side wall portion constituting the box body having an opening on the front surface,
The closing part is formed integrally with the box body so as to be removed by applying an impact force from either the inside or the outside of the box body, closing the entire through hole formation scheduled part. When the tool inserted through the opening is inclined with respect to the side wall provided with the closing portion, the closing portion is removed by applying an impact force to the closing portion from the inside of the box body. ,
In order to prevent the tip portion of the tool from locking and sliding, a tool locking portion forming a step where the tool tip in an inclined posture is locked at a portion close to the bottom wall portion of the inner wall surface of the closing portion, Provided to be removable together with the blocking portion ,
The wiring box according to claim 1, wherein the tool locking portion forms the step by a recess formed on an inner wall surface of the closing portion .

A wiring box provided with a removable portion for forming a through-hole through which wiring / piping material is inserted, in the through-hole forming scheduled portion of the side wall portion constituting the box body having an opening on the front surface,
The closing part is formed integrally with the box body so as to be removed by applying an impact force from either the inside or the outside of the box body, closing the entire through hole formation scheduled part. When the tool inserted through the opening is inclined with respect to the side wall provided with the closing portion, the closing portion is removed by applying an impact force to the closing portion from the inside of the box body. ,
In order to prevent the tip portion of the tool from locking and sliding, a tool locking portion forming a step where the tool tip in an inclined posture is locked at a portion close to the bottom wall portion of the inner wall surface of the closing portion, Provided to be removable together with the blocking portion ,
The wiring box, wherein the tool locking portion is constituted by a concavo-convex surface having a plurality of concavo-convex portions formed on all or part of the inner wall surface of the closing portion .