JP2007097391A - Wiring box and its attaching method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a wiring box which can facilitate a work for fixing a box body to a building material, such that the front end face of the box body is flush with the front surface of the building material, while eliminating the possibility of becoming the obstacle of a wall material arranged in front of the building material, and to provide a attaching method of the wiring box. <P>SOLUTION: The wiring box 11 is provided, on the front side of a box body B, with a locking portion 17, projecting along the direction perpendicularly intersecting the attachment bearing surface to recede from the box body B and having a locking face 17a located being flush with the front side end face of the box body B on the rear surface. The locking portion 17 is coupled with the box body B via a portion 16 coupling the locking portion 17 and the box body B. The coupling portion 16 is formed thin in order to easily cut off the locking portion 17 and the box body B. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a wiring box attached to a building construction material and a method for attaching the wiring box to the construction material.

  For example, when installing a wiring device on a wall of a building, a square box-like wiring box having an opening on the front surface is installed in the wall. This wiring box is attached to a construction material (wood pole or lightweight steel) standing upright in the wall.

  The wall is constructed such that a pair of wall members are erected so that they contact the front and rear surfaces of the construction material. For this reason, the wiring box is attached to the construction material such that the end face on the front side of the wiring box does not protrude forward from the front surface of the construction material. Specifically, the attachment of the wiring box to the construction material is performed such that the end face on the front side of the wiring box is flush with the front surface of the construction material. For this reason, the wiring box has positioning means that enables the wiring box to be attached to the construction material while maintaining the end face on the front side of the wiring box flush with the front surface of the construction material. (For example, refer to Patent Document 1).

  The wiring box described in Patent Document 1 includes a substrate and a housing in which one side of the peripheral wall is opened and the substrate is fitted into the opening. In the board, the end face that is the front side of the wiring box when fitted to the housing is locked to the front face of the wooden pole as a construction material, and the end face of the board is flush with the front face of the wooden pole. A locking piece as positioning means for positioning is integrally formed. Further, the board is formed with an attachment hole for fixing the board to the wooden pole.

  In order to attach the wiring box described in Patent Document 1 to the wooden pole, first, the board is fixed to the side face of the wooden pole by fixing a set screw to the wooden pole from the mounting hole of the board. At this time, by locking the locking piece to the front surface of the wooden pole, when the set screw is fixed to the wooden pole, the substrate is prevented from moving or tilting with respect to the wooden pole, The state where the end surface of the substrate is flush with the front surface of the wooden pole is maintained. After that, the chassis is attached to the board, the opening side end face of the chassis is aligned with the end face of the board, and the wiring box is placed on the wooden pole with the front end face flush with the front face of the wooden pole. It is attached.

  However, after the wiring box is attached to the wooden pole, the wall material is installed on the front side of the wooden pole so that the rear surface of the wall material comes into contact with the front surface of the wooden pole. At this time, in the wiring box described in Patent Document 1, the locking piece remains locked to the front surface of the wooden pole. For this reason, in a state where the locking piece is locked to the front surface of the wooden pole, the locking piece protrudes from the front side of the wooden pole to the front side, and the wiring box provided with the locking piece is a major obstacle to the installation of the wall material. End up. As a result, for example, when the rear surface of the wall material comes into contact with the front surface of the locking piece, the wall material is installed in a state of being lifted from the front surface of the wooden pole by the thickness of the locking piece.

  Therefore, while avoiding the positioning means (locking piece) becoming an obstacle to the installation of the wall material, while maintaining the state that the end face of the front side of the wiring box is flush with the front surface of the construction material, A wiring box that can be attached has been proposed (see, for example, Patent Document 2). That is, in the wiring box described in Patent Document 2, the positioning means is formed smaller than the positioning means (locking piece) described in Patent Document 1.

  The wiring box described in Patent Literature 2 includes a box body formed in a bottomed square box shape having an opening on the front surface, and one of the pair of side walls facing each other has a long hole shape. Screw through holes are formed. Further, in the pair of side walls, a pair of engagement protrusions that can be engaged only with the corners of a lightweight section steel as a construction material (on the locking piece of Patent Document 1) Is projected outwardly as positioning means.

  And when attaching the wiring box of patent document 2 to a lightweight shape steel, a front side of a box main body is made by engaging a pair of engagement protrusions with the corner | angular part (round part) of a lightweight shape steel. A state in which the end surface of the steel plate and the front surface of the lightweight section steel are flush with each other is maintained. Thereafter, a set screw is fixed to the lightweight steel from the screw through hole, and the wiring box is attached to the lightweight steel.

In a state where the wiring box is attached to the lightweight section steel, the engaging protrusions are engaged only with the corners of the lightweight section steel, and are not engaged with the front surface of the lightweight section steel. For this reason, the engagement protrusion does not protrude from the front side to the front side of the lightweight section steel, and the engagement protrusion is prevented from becoming an obstacle to wall material installation.
Japanese Utility Model Publication No. 56-73118 Japanese Patent Laid-Open No. 11-275732

  However, in the wiring box described in Patent Document 2, the engagement protrusions are formed smaller than the locking pieces described in Patent Document 1, and can be engaged only with the corners of the lightweight steel. For this reason, when the set screw is fixed to the lightweight steel from the screw through hole, the engagement between the engaging protrusion and the corner is broken, and the wiring box is easily moved relative to the lightweight steel. There is a problem that it is difficult to perform the mounting work in a state where the end face on the front side of the steel plate is flush with the front surface of the construction material.

  The present invention has been made paying attention to such problems existing in the prior art. Its purpose is to facilitate the work of attaching to the construction material so that the end face on the front side of the box body is flush with the front surface of the construction material, and the obstacle of the wall material installed on the front surface of the construction material. It is an object of the present invention to provide a wiring box and a wiring box mounting method that can eliminate this problem.

  In order to solve the above-mentioned problems, the invention according to claim 1 includes a box body having an opening at least on the front surface, and is attached to a building material erected on the rear side of a wall material of a building. The side wall of the box body includes a mounting seat surface that abuts against a side surface of the building material when the box body is attached to the building material, and the box on the side wall side on which the mounting seat surface is formed. The front surface side of the main body protrudes away from the box main body along the direction orthogonal to the mounting seat surface, and the rear surface has a locking surface located on the same plane as the front end surface of the box main body. The box body is constructed with the end face on the front side of the box body and the front surface of the construction material being flush with each other by locking the locking surface to the front surface of the construction material orthogonal to the side surface of the construction material. Locking part to be locked to The locking portion is connected to the box body via a connecting structure that connects the locking portion and the box body, and the connecting structure is for separating the locking portion and the box body. The dividing means is provided, and the locking portion can be removed from the box body using the dividing means.

  According to a second aspect of the present invention, in the wiring box according to the first aspect, the connection structure includes a connection portion integrally formed with the lock portion and the box body, and the lock portion. The gist of the invention is that an operating portion is provided for operating the tool to the locking portion when the locking portion from the connecting portion using the tool is separated from the box body.

  According to a third aspect of the present invention, in the wiring box according to the second aspect, the dividing means is formed by forming at least a part of the connecting portion thinner than the locking portion. Is the gist.

  According to a fourth aspect of the present invention, in the wiring box according to the second or third aspect, the operating portion is a gripped portion gripped by a gripping tool as the tool, and the gripped portion is The gist is that it is formed in a thin plate shape that can be gripped by the gripping tool.

  According to a fifth aspect of the present invention, in the wiring box according to the second or third aspect, the operating portion is recessed in the locking portion, and a tip of a driver as the tool is engaged. The gist is that it is a recess.

  According to a sixth aspect of the present invention, in the wiring box according to any one of the second to fifth aspects, the end surface is disposed around the coupling portion at an end surface on a front surface side of the box body. The gist is that a recess that is recessed in the depth direction of the box body is formed.

  According to a seventh aspect of the present invention, in the wiring box according to the first aspect, the locking portion and the box body are formed separately, and the connecting structure is provided between the locking portion and the box body. It is comprised from the engagement relationship comprised by this, and the said parting means makes it a summary to be able to cancel | release the said engagement relationship.

  Invention of Claim 8 is the box for wiring as described in any one of Claims 1-7, The said box main body is a pair of front and rear provided in the side surface of the shape steel material which is the said construction material The attachment surface is attached to the front lip portion of the construction material in the lip portion, and the engagement surface of the engagement portion is formed on the side wall on which the attachment seat surface is formed. The gist is that a short hole-like mounting hole corresponding to the lip portion on the front side of the construction material is formed in a state of being locked to the front surface of the material.

  The invention according to claim 9 is the wiring box according to claim 8, wherein the box body is attached to the shape steel member by attaching one attachment screw to the lip portion from the attachment hole, The gist of the invention is that the side wall on which the mounting seat surface is formed is provided with a rotation restricting means for restricting the rotation of the box main body around the mounting steel and with the mounting screw as a rotation center. .

  According to a tenth aspect of the present invention, in the wiring box according to the ninth aspect, the rotation restricting means is related to a lip portion on the front surface side of the building material and a corner portion positioned between the front surface. The gist is at least a pair of locking projections to be stopped.

  The invention according to claim 11 is a wiring box mounting method for mounting a wiring box having a box body having an opening at least on a front surface to a construction material standing on the rear side of a building wall material. The wiring box is provided with a mounting seat surface on the side wall of the box body, the mounting seat surface being in contact with a side surface of the building material in a mounted state of the box body to the building material, and the mounting seat surface is formed. On the front side of the box body on the side wall side, a locking surface that protrudes away from the box body along a direction orthogonal to the mounting seat surface, and a locking surface located on the same plane as the end surface on the front side of the box body on the rear surface is provided. The locking portion is connected to the box body via a connection structure that connects the locking portion and the box body, and the connection structure includes the locking portion. A dividing means for dividing the box body is provided, the mounting seat surface is brought into contact with the side surface of the construction material, and the locking surface is locked to the front surface of the construction material orthogonal to the side surface. The box body is locked to the construction material by the locking portion, and the wiring box is attached to the construction material with the mounting screw in a state where the end surface on the front side of the box body is flush with the front surface of the construction material. The gist is to sever the locking portion from the box body using the dividing means and remove the locking portion from the box body.

  The invention according to claim 12 is the method for mounting a wiring box according to claim 11, wherein the connection structure is a connection portion integrally formed with the locking portion and the box body, and the locking portion. Is summarized from being separated from the box body by the connecting portion.

  According to a thirteenth aspect of the present invention, in the method for attaching a wiring box according to the eleventh or twelfth aspect, the locking portion is configured by operating a tool on an operating portion provided in the locking portion. The gist is to be divided from the main body.

  According to a fourteenth aspect of the present invention, in the method for mounting a wiring box according to the thirteenth aspect, the locking portion includes a box body in which a gripped portion as the operating portion is gripped by a gripping tool as the tool. The main point is to be divided from

  According to a fifteenth aspect of the present invention, in the wiring box mounting method according to the thirteenth aspect, the locking portion is a box in which a driver as the tool is engaged with an engagement recess as the operation portion. The gist is to be divided from the main body.

  According to a sixteenth aspect of the present invention, in the wiring box mounting method according to the eleventh aspect, the locking portion and the box main body are formed separately, and the connection structure includes the locking portion and the box main body. The engaging portion is separated from the box body by releasing the engaging relationship.

  According to the present invention, it is possible to easily perform the work of attaching to the construction material so that the end surface of the front side of the box body is flush with the front surface of the construction material, and the wall material installed on the front surface of the construction material. It can eliminate the obstacle.

(First embodiment)
Hereinafter, a first embodiment of a wiring box and a wiring box mounting method embodying the present invention will be described with reference to FIGS. In the following description, “up”, “down”, “left”, “right”, “front”, and “rear” of the wiring box 11 and the box body B have the direction of the arrow Y1 shown in FIG. Is the left-right direction, and the direction of the arrow Y3 is the front-back direction.

  First, the lightweight shape steel 10 which is a shape steel material as a construction material to which the wiring box 11 is attached will be described. As shown in FIG. 1, the light-weight shaped steel 10 is formed in an elongated rectangular tube shape from a metal plate, and a pair of lip portions 10a formed so that side end portions extending in the length direction of the metal plate face each other. It has. And the one side surface (right side surface in FIG. 1) of the lightweight shaped steel 10 is comprised by a pair of lip | rip part 10a. In addition, a gap S extending in the length direction of the lightweight section steel 10 is formed between the pair of lip portions 10a.

  In the light-weight shaped steel 10, the other side surface (front surface in FIG. 1) orthogonal to the side surface composed of the pair of lip portions 10 a is the front surface 10 c of the light-weight shaped steel 10. Further, in the light-weight shaped steel 10, a side surface facing the front surface 10c is a rear surface 10e, and a side surface facing the lip portion 10a is a side surface 10f.

  And, on the front surface 10c side and the rear surface 10e side of the lightweight section steel 10 erected in the building, a wall plate K as a wall material (see FIG. 4. In FIG. 4, only the wall plate K on the front surface 10c side is shown. ), And each wall plate K is erected so that the rear surface thereof is in contact with the front surface 10c and the rear surface 10e of the lightweight section steel 10. As a result, a lightweight partition wall as a wall of the building is constructed by the lightweight section steel 10 and the pair of wall plates K.

  Next, the wiring box 11 will be described. The wiring box 11 is used by accommodating a wiring device (not shown) such as a switch in the inside thereof, and is attached to the lightweight section steel 10 erected on the rear side of the wall plate K. As shown in FIGS. 1 and 2, the wiring box 11 is opened to the front surface from a bottom wall 12 having a rectangular plate shape and four side walls 12 a to 12 d erected from the four side peripheral edges of the bottom wall 12. A box body B having a square box shape. In the state where the opening of the box body B is the front surface, the upper side wall of the pair of side walls opposed vertically is the upper side wall 12a and the lower side wall is the lower side wall 12b. Further, in the state in which the opening of the box body B is the front, the left side wall of the pair of side walls facing left and right is the left side wall 12c and the right side wall is the right side wall 12d.

  In the left side wall 12c, an extension piece 13 is formed on the front side (opening side) of the box body B so as to extend away from the left side wall 12c along a direction orthogonal to the outer surface of the left side wall 12c. The front surface 13a of the extending piece 13 is located on the same plane as the front end surfaces of the box body B (the front side end surfaces of the upper side wall 12a, the lower side wall 12b, and the right side wall 12d). Further, as shown in FIG. 2, on the outer surface of the left side wall 12 c, a mounting seat portion 14 having a certain thickness is connected to the extended piece 13 so as to protrude at three locations. The mounting seat 14 is parallel to the outer surface of the left side wall 12c, and when the wiring box 11 is mounted on the lightweight section steel 10, the mounting seat abuts against the lip section 10a which is the side surface of the lightweight section steel 10. A surface 14a is formed.

  Further, each mounting seat 14 is formed with two short hole (round hole) mounting holes 14b penetrating the mounting seat 14 (left side wall 12c). When the wiring box 11 is attached to the lightweight shape steel 10, the attachment hole 14 b is inserted with an attachment screw 19 (see FIG. 4). The length from the front surface 13a of the extended piece 13 to the front-side mounting hole 14b of the two mounting holes 14b is from the front surface 10c of the lightweight section steel 10 to the rear end edge of the lip portion 10a on the front surface 10c side. It is shorter than the length of. For this reason, as shown in FIG. 4, when the end surface on the front side of the box body B (the front surface 13 a of the extended piece 13) is flush with the front surface 10 c of the lightweight steel 10, The mounting hole 14b is arranged at a position facing the lip portion 10a on the front surface 10c side. Each attachment hole 14b has the same length in the penetration direction of the attachment seat portion 14 as the thickness of the attachment seat portion 14, and the length along the penetration direction of the attachment hole 14b is equal to the length of the attachment hole 14b. The length is such that the mounting screw 19 in contact with the inner surface can be prevented from tilting.

  As shown in FIGS. 1 and 3, a pair of locking projections 15 are formed on the outer edge of the extended piece 13. As shown in FIG. 3, the front surface of each locking projection 15 is flush with the front surface 13 a of the extending piece 13. In addition, a curved surface 15 a that is curved in an arc shape from the proximal end side to the distal end side of each locking projection 15 is formed on the rear surface of each locking projection 15. The curvature radius of the curved surface 15 a is the same as the curvature radius of the corner portion 10 d of the lightweight steel 10. In addition, the curvature radius of the curved surface 15a may be smaller than the curvature radius of the corner 10d of the lightweight section steel 10.

  When the box 11 for wiring is attached to the lightweight section steel 10 using one mounting screw 19 so that the front end face of the box body B is flush with the front face 10c of the lightweight section steel 10, The curved surface 15a of the locking projection 15 is locked along a corner portion 10d located between the front surface 10c of the lightweight steel 10 and the lip portion 10a. At this time, the front surface of the locking projection 15 does not protrude forward from the front surface 10c of the lightweight steel plate 10, and is flush with the front surface 10c. The locking protrusion 15 constitutes a rotation restricting means for restricting the rotation of the box body B around the one mounting screw 19 as a rotation center.

  As shown in FIG. 1, on the front surface 13 a of the extended piece 13, a locking portion 17 is moved forward via a connecting portion 16 on both sides in the length direction (vertical direction in FIG. 1) of the extended piece 13. Projected. And the said latching | locking part 17 locks the box main body B to the light-weight shaped steel 10 in the state which made the end surface of the front side of the box main body B, and the front surface 10c of the light-weight shaped steel 10 flush.

  As shown in FIG. 2, the pair of connecting portions 16 and the locking portions 17 are longer in the length direction of the extending piece 13 (up and down direction in FIG. 2) than the three mounting seat portions 14 (mounting holes 14 b). Arranged outside. That is, of the pair of connecting portions 16 and the locking portions 17, one (upper in FIG. 1) the connecting portions 16 and the locking portions 17 are outside (upper side) than the uppermost mounting seat portion 14 (mounting hole 14 b). Is formed. The other (downward in FIG. 1) connecting portion 16 and locking portion 17 are formed on the outer side (lower side) of the lowermost mounting seat portion 14 (mounting hole 14b). Therefore, the pair of connecting portions 16 and the locking portions 17 are arranged at positions sandwiching the three attachment seat portions 14 in the length direction of the extending piece 13.

  Each latching part 17 is connected with the extension piece 13 which is the box main body B through the connection part 16 as a connection structure. Each connecting portion 16 is integrally formed with the locking portion 17 and the box body B (extending piece 13), and protrudes to the front side of the box body B so as to be orthogonal to the front surface 13a of the extending piece 13. ing.

  As shown in FIG. 1, in the connecting portion 16, the direction orthogonal to the mounting seat surface 14 a is the length direction of the connecting portion 16. In addition, as shown in FIG. 2, in each connecting portion 16, a direction (vertical direction in FIG. 2) orthogonal to a direction (front-rear direction in FIG. 2) in which the locking portion 17 is locked to the lightweight steel 10. The thickness direction of the connecting portion 16 is assumed. In this case, the thickness of the connecting portion 16 in the thickness direction becomes thinner (thinned) as it goes from the locking portion 17 side to the box body B (extending piece 13) side. On the other hand, the connecting portion 16 has a constant thickness in the length direction. For this reason, the connection part 16 can be easily parted with the box main body B from the base end side which is the box main body B (extension piece 13) side. A part of the connecting part 16 is formed thinner than the engaging part 17, so that the connecting part 16 is provided with a dividing means for separating the engaging part 17 from the box body B.

  Further, as shown in FIGS. 1 and 2, a recess 13 b is formed at the front end side of the box body B, that is, around the connecting portion 16 on the front surface 13 a of the extending piece 13. A recess is formed in the direction (the front-rear direction in FIGS. 1 and 2). The depth of the recess 13b is the same as the length of the connecting portion 16 along the depth direction of the wiring box 11 (box body B). That is, the connecting portion 16 protrudes from the inner bottom surface of the recess 13 b toward the front side of the box body B and reaches the opening edge of the recess 13 b that is the front surface 13 a of the extended piece 13.

  As shown in FIG. 1, the locking portion 17 formed integrally with the connecting portion 16 is a thin plate that is orthogonal to the mounting seat surface 14 a and extends in the direction away from the box body B (leftward in FIG. 1). Is formed. When the direction perpendicular to the mounting seat surface 14a and away from the box body B is the length direction of the locking portion 17, the direction perpendicular to the length direction at the locking portion 17 (vertical direction) ) In the thickness direction of the locking portion 17. In this case, the length of the locking portion 17 in the length direction is longer than the length of the locking protrusion 15 along the length direction. That is, the distal end of the locking portion 17 is located farther from the box body B than the distal end of the locking projection 15.

  And the latching | locking part 17 can be easily hold | gripped from the thickness direction with the pliers P as a holding tool by the thickness to the thickness direction, the protrusion height from the connection part 16, and the length to a length direction. It is formed in a possible shape. That is, the locking part 17 itself constitutes an operating part for causing the locking part 17 to operate when the locking part 17 is separated from the box body B using the pliers P, and is gripped by the pliers P. A possible gripped portion is configured.

  And since the latching | locking part 17 is integrally formed by the said connection part 16, the rear surface which faces the rear side of the box main body B in the latching | locking part 17 is an end surface of the front side of the box main body B. A locking surface 17a located on the same plane as (the front surface 13a of the extended piece 13) is formed.

Next, a method for attaching the wiring box 11 to the lightweight section 10 will be described.
First, in the lightweight section steel 10, the mounting seat surface 14a is brought into contact with the lip section 10a on the front surface 10c side of the lightweight section steel 10 among the pair of lip sections 10a. At the same time, as shown in FIGS. 1 and 3, the locking surfaces 17 a of the locking portions 17 are locked to the front surface 10 c of the lightweight steel 10, and the curved surfaces 15 a of the pair of locking protrusions 15 are lightweight. Locked to the corner 10d of the shaped steel 10. Here, the length from the front surface 13a of the extending piece 13 to the mounting hole 14b on the front side of the box body B is the length from the front surface 10c of the lightweight section steel 10 to the rear end edge of the lip portion 10a on the front surface 10c side. (See FIG. 4). The mounting hole 14b is formed in a short hole shape instead of a long hole shape extending in the depth direction of the box body B. For this reason, when the attachment screw 19 is screwed from the opening of the box body B through the attachment hole 14b formed in the central attachment seat portion 14, the attachment screw 19 is directly screwed into the lip portion 10a on the front surface 10c side. At this time, the mounting screw 19 is screwed into the bottom wall 12 side along the depth direction from the opening of the box body B, and a force pressing the wiring box 11 toward the bottom wall 12 side acts.

  However, the locking surface 17 a of the locking portion 17 is locked to the lightweight steel 10 from the direction orthogonal to the front surface 10 c of the lightweight steel 10. For this reason, the wiring box 11 is prevented from moving or tilting toward the rear side of the light-weight shaped steel 10 due to the force pressing the wiring box 11 toward the bottom wall 12. In particular, the locking portion 17 is longer in the length direction than the locking protrusion 15 and has a wider locking area with respect to the lightweight section steel 10. In addition, the locking portion 17 is locked to the front surface 10c of the lightweight steel 10 that is a flat surface, whereas the locking protrusion 15 is locked to a corner portion 10d having an arc shape. For this reason, even if the wiring box 11 is moved to the rear side of the light-weight shaped steel 10 or tilted by the force only by the locking of the locking protrusion 15 to the corner 10d. The movement and inclination are prevented by the locking portion 17.

  Moreover, in the connection part 16, the thickness along the length direction is constant, and intensity | strength is high compared with the thickness direction of the connection part 16 formed in thin shape. For this reason, the connecting portion 16 has a required strength in the direction in which the locking portion 17 is locked to the lightweight steel 10, and is easy due to the force of the connecting portion 16 pressing the wiring box 11 toward the bottom wall 12. Can be prevented from being damaged.

  Then, the wiring box 11 is attached to the lightweight shape steel 10 by the attachment screw 19. In a state where the wiring box 11 is attached to the lightweight section steel 10, the end face on the front side of the box body B and the front face 10c of the lightweight section steel 10 are located on the same plane and are flush with each other.

  Subsequently, the locking portion 17 is gripped by the pliers P (see FIG. 1) from the thickness direction, and the locking portion 17 is repeatedly tilted up and down while being held by the pliers P. At this time, the connecting portion 16 is thinner in the thickness direction from the locking portion 17 side toward the box body B side. For this reason, the connection part 16 formed thinner than the locking part 17 is easily broken off from the box body B.

  As a result, the connection between the locking portion 17 and the box body B by the connecting portion 16 is released, and the locking portion 17 is separated from the box body B. The same operation is performed for the other locking portion 17 to separate the locking portion 17 from the box body B, and the pair of locking portions 17 are removed from the wiring box 11.

  After the removal of the locking portion 17, the wiring box 11 is subjected to a force for moving the wiring box 11 in the front-rear direction by attaching a wiring device to the wiring box 11 or inserting a cable. To do. The wiring box 11 is attached to the lightweight steel 10 by a single mounting screw 19, but the pair of locking projections 15 are locked to the corners 10 d of the lightweight steel 10. Even if the force is applied, the wiring box 11 is prevented from easily rotating around the mounting screw 19 as a rotation center.

  And as shown in FIG. 4, the wall board K is installed in the front surface 10c of the lightweight shape steel 10, and the front side of the box main body B. As shown in FIG. At this time, since there is no locking portion 17 on the front surface side of the box body B, the wall plate K is in a state in which the rear surface of the wall plate K is in contact with the front surface 10c of the light weight shaped steel 10 and the front surface side end surface of the box body B. K is installed.

According to the above embodiment, the following effects can be obtained.
(1) The locking portion 17 is provided on the front side of the box body B, and the rear surface (locking surface 17a) of the locking portion 17 is formed on the same plane as the end surface on the front side of the box body B. Then, when the mounting seat surface 14 a is brought into contact with the side surface (lip portion 10 a) of the lightweight section steel 10 and the locking surface 17 a of the locking section 17 is locked to the front surface 10 c of the lightweight section steel 10, It is possible to maintain a state where the front end face and the front face 10c are flush with each other. That is, in the wiring box 11 of this embodiment, the work of attaching to the lightweight section steel 10 can be easily performed so that the end face on the front side of the box body B is flush with the front face 10c of the lightweight section steel 10. Moreover, the latching | locking part 17 is connected with the front side of the box main body B via the connection structure (connection part 16) provided with the dividing means (form the connection part 16 thinner than the latching part 17). Therefore, the locking portion 17 can be easily divided from the connecting portion 16 by using the dividing means.

  That is, the locking portion 17 is connected to the box body B via the connecting portion 16, so that the locking portion 17 is intended to be removed from the wiring box 11. It is different from the configuration having the required thickness and width so that it is not easily bent when locked to 10c. For this reason, after attaching the wiring box 11 to the lightweight shape steel 10 while locking the locking portion 17 to the light weight steel 10, the locking portion 17 can be easily removed from the wiring box 11. Therefore, when the wiring box 11 is attached to the lightweight section 10 and the wall material (wall plate K) is installed, the locking portion 17 of the wiring box 11 is not obstructed by the installation of the wall plate K. Can do. As a result, the wall plate K is lifted from the front surface 10c of the light-weight shaped steel 10 by the locking portion 17, and the joint between the wall plates K is separated due to the lift and the appearance of the lightweight partition wall is deteriorated. Can be eliminated.

  (2) The locking portion 17 is elongated in the direction (length direction) perpendicular to the mounting seat surface 14a and away from the box body B, while in the direction perpendicular to the length direction (thickness direction). Is formed in a thin plate shape. And the latching | locking part 17 is formed in the size which can be easily hold | gripped with the pliers P from the thickness direction in the length to the length direction, the thickness to the thickness direction, and the protrusion height from the connection part 16. . Therefore, it is possible to facilitate the dividing operation of the locking portion 17 while holding the locking portion 17 with the pliers P, and it is possible to easily perform the operation of removing the locking portion 17 from the wiring box 11.

  (3) As for the connection part 16, the thickness to the thickness direction becomes thin as it goes to the box main body B (extension piece 13) side from the latching | locking part 17 side. And the connection part 16 is thin in the direction which moves the pliers P which hold | gripped the latching | locking part 17, and makes the latching | locking part 17 tilt repeatedly. Conversely, the connecting portion 16 has a constant thickness in a direction in which the locking portion 17 is not tilted by the pliers P. For this reason, while the operation of tilting the pliers P and removing the locking portion 17 from the wiring box 11 can be easily performed, the connecting portion is connected in the direction in which the locking portion 17 is locked to the lightweight steel 10. A strength of 16 can be maintained.

  (4) A recess 13 b that is recessed in the depth direction of the box body B is formed around the connecting portion 16. For this reason, for example, even if the burr is generated on the inner bottom surface of the recess 13b after the locking portion 17 is removed from the wiring box 11, the burr remains within the depth of the recess 13b. It is possible to make a configuration in which the burr hardly protrudes from the end surface on the front surface side (the front surface 13a of the extending piece 13) to the front side of the box body B. Therefore, the burr can be prevented from becoming an obstacle to installing the wall plate K.

  (5) The length from the front end face of the box body B (the front face 13a of the extending piece 13) to the mounting hole 14b on the front face side of the box body B is from the front face 10c of the lightweight section steel 10 to the front face 10c side. It is shorter than the length to the rear end edge of the lip portion 10a, and the mounting hole 14b is formed in a short hole shape. Therefore, when the locking surface 17a of the locking portion 17 is locked to the front surface 10c of the lightweight section steel 10, the mounting hole 14b on the front surface side of the box body B is formed on the lip portion 10a on the front surface 10c side. It is arrange | positioned in the position which opposes. Therefore, when the mounting screw 19 is screwed into the mounting hole 14b, the lip portion 10a is disposed at the screwing destination of the mounting screw 19. As a result, it is not necessary to move the wiring box 11 to match the mounting hole 14b with the lip portion 10a during the screwing operation of the mounting screw 19, and the work of mounting the wiring box 11 to the lightweight steel 10 is easy. Can be done.

  (6) The mounting hole 14b of the mounting seat portion 14 is formed in a short hole shape. For this reason, for example, the attachment hole 14b is formed in a long hole shape extending in the depth direction of the box body B, and when the attachment screw 19 is screwed into the lip portion 10a of the lightweight section steel 10, the attachment screw 19 is formed of the lightweight section steel 10. The outer surface of the lip portion 10a slips and does not move to the back of the box body B along the long hole. Therefore, when attaching the wiring box 11 to the lightweight section steel 10, there is no need to perform the operation of screwing the attachment screw 19 into the lip portion 10a while restricting the movement of the attachment screw 19 in the attachment hole 14b. The work of attaching the wiring box 11 to the lightweight section steel 10 can be easily performed.

  (7) A pair of locking projections 15 are formed on the box body B (extending piece 13). When the wiring box 11 is attached to the lightweight section steel 10, the pair of locking projections 15 are lightweight. Locked to the corner 10d of the shaped steel 10. For this reason, even if the force for moving in the front-rear direction is applied to the wiring box 11 with the locking portion 17 removed from the box body B, the pair of locking projections 15 are locked to the corner portion 10d. Therefore, the wiring box 11 can be prevented from rotating around the mounting screw 19 as a rotation center.

  (8) A recess 13b is formed in the end face on the front side of the box body B (the front face 13a of the extending piece 13), and a connecting portion 16 is provided within the depth of the recess 13b. Until the opening edge of the recess 13b. For this reason, even if the engaging portion 17 is connected to the box body B via the connecting portion 16 and the connecting portion 16 is provided with a dividing means (forming the connecting portion 16 in a thin shape), It becomes possible to position the stop surface 17a on the same plane as the end surface on the front surface side of the box body B (the front surface 13a of the extended piece 13). Accordingly, the front surface 10c and the box are kept in a state where the locking surface 17a of the locking portion 17 is locked to the front surface 10c of the lightweight steel 10 while facilitating the work of dividing the locking portion 17 from the box body B. The end face on the front side of the main body B can be flush with the main body B.

  (9) The pair of locking portions 17 are disposed on the outer side in the length direction (vertical direction) of the extending piece 13 with respect to the three mounting seat portions 14 (mounting holes 14b). For this reason, the pair of locking portions 17 are locked to the front surface 10c of the lightweight steel 10 at a position sandwiching the mounting screw 19 screwed into the lip portion 10a from the mounting hole 14b. Therefore, it is possible to suppress the wiring box 11 from rotating about the mounting screw 19 as a rotation center.

(Second Embodiment)
Next, a second embodiment of the present invention will be described with reference to FIGS. Note that in the second embodiment described below, the same components as those in the first embodiment described above are denoted by the same reference numerals, and redundant description thereof is omitted or simplified.

  As shown in FIG. 5, in the wiring box 11, a locking member 30 is assembled on the front side of the box body B on the left side wall 12 c of the box body B. And this latching member 30 protrudes so that it may space apart from the box main body B along the direction orthogonal to the mounting seat surface 14a, and the latching surface located on the same plane as the end surface of the front side of the box main body B on the rear surface The latching | locking part which has 31a is comprised. In the left side wall 12c of the box main body B, a connecting hole 12f (see FIG. 6) is formed on the outer side of the three mounting seats 14 on the both sides.

  As shown in FIGS. 5 and 6, the locking member 30 includes a plate body 31 having a rectangular plate shape. In the locking member 30, a pair of connecting pieces 32 are bent at one side edge (on the right side in FIGS. 5 and 6) of the pair of side edges facing each other of the plate body 31. . Each connecting piece 32 is bent at a right angle to the plate body 31. In addition, a connecting projection 33 is formed at the tip of each connecting piece 32 so as to protrude toward the plate body 31 so as to be orthogonal to each connecting piece 32.

  Further, in the locking member 30, a locking piece 34 is attached to the plate body 31 on the other side edge (left side in FIGS. 5 and 6) of the pair of side edges facing each other of the plate body 31. It forms a right angle to the connecting piece 32 and is bent in the same direction. The width between the connecting piece 32 and the locking piece 34 is set to be the same as the width obtained by adding the thickness of the left side wall 12c to the width of the front face 10c of the lightweight section steel 10. In the plate body 31, a locking surface 31 a is provided on the surface in which the connecting piece 32 and the locking piece 34 are bent, that is, on the rear surface of the plate body 31.

  Then, the coupling protrusions 33 of the coupling pieces 32 are engaged with the coupling holes 12f in the left side wall 12c of the box body B, and the coupling members 32 are latched to the inner surface of the left side wall 12c, thereby locking the locking member 30 to the box. It can be connected to the body B. That is, the locking member 30 is connected to the box body B via a connection structure having a concave-convex engagement relationship formed between the connection protrusion 33 of the connection piece 32 and the connection hole 12f of the box body B. A locking portion is provided in the box body B by the stop member 30.

  To attach the wiring box 11 of the second embodiment to the lightweight section steel 10, as shown in FIGS. 5 and 6, the mounting seat surface 14a is brought into contact with the lip portion 10a on the front surface 10c side of the lightweight section steel 10. Let At the same time, the locking surface 31a of the plate main body 31 is locked to the front surface 10c of the lightweight section steel 10, and the locking piece 34 is locked to the side surface 10f facing the lip portion 10a by the lightweight section steel 10. Note that the curved surfaces 15 a of the pair of locking projections 15 are also locked to the corners 10 d of the lightweight section 10.

  Then, the wiring box 11 is attached to the lightweight shape steel 10 by the attachment screw 19. In a state where the wiring box 11 is attached to the lightweight section steel 10, the end face on the front side of the box body B and the front face 10c of the lightweight section steel 10 are located on the same plane and are flush with each other. Thereafter, the locking member 30 is removed from the wiring box 11. Specifically, the connection protrusion 33 is removed from the connection hole 12f, the engagement relationship formed between the connection protrusion 33 and the connection hole 12f is released, and the connection structure between the locking member 30 and the box body B is provided. The lock member 30 (locking portion) is released from the box body B and separated (separated). Then, by removing the locking member 30 from the wiring box 11, the entire front surface 10c of the light-weight shaped steel 10 faces the front side.

Therefore, according to the second embodiment, the following effects can be obtained.
(10) The locking member 30 is provided on the front surface side of the box body B, and the locking surface 31a which is the rear surface of the locking member 30 is formed so as to be located on the same plane as the end surface on the front surface side of the box body B. Then, when the mounting seat surface 14a of the wiring box 11 is brought into contact with the side surface (lip portion 10a) of the lightweight section steel 10, the locking surface 31a of the locking member 30 is locked to the front surface 10c of the lightweight section steel 10. The front end face of the box body B and the front face 10c can be easily flush with each other. Further, the locking member 30 is connected to the front side of the box body B through a connection structure having a concave and convex engagement relationship between the connection protrusion 33 and the connection hole 12f, and by releasing the engagement relationship. The locking member 30 can be easily separated from the box body B.

  That is, the locking member 30 is configured to be removed from the box body B. For this reason, after attaching the wiring box 11 to the lightweight steel 10 while locking the locking surface 31a of the locking member 30 to the front surface 10c, the locking member 30 can be easily removed from the wiring box 11. Can do. Therefore, when the wall box K is installed on the front side of the lightweight shape steel 10 and the wiring box 11 after the wiring box 11 is attached to the lightweight shape steel 10, the locking member 30 of the wiring box 11 becomes an obstacle. Can be eliminated. That is, it is possible to eliminate the problem of the wall plate K being lifted by the locking member 30.

(Third embodiment)
Next, a third embodiment of the present invention will be described with reference to FIG. Note that in the third embodiment described below, the same components as those in the first embodiment described above are denoted by the same reference numerals, and redundant description thereof is omitted or simplified.

  As shown in FIG. 7, in the wiring box 11, a locking portion 40 having a rectangular plate shape on the front side end surface (front surface 13 a of the extended piece 13) of the box body B at the left side wall 12 c of the box body B. Are integrally formed. The locking part 40 is connected (integrally formed) to the front surface 13a via a connecting part 41 as a connecting structure provided on the rear surface of the box body B on the bottom wall 12 side. The connecting portion 41 protrudes from the front surface 13 a of the extended piece 13 to the front side of the box body B.

  Since the connecting portion 41 is formed thinner than the thickness of the left side wall 12c, the connecting portion 41 is provided with a dividing means for separating the locking portion 40 from the box body B. Further, a recess 42 is formed in the depth direction of the box body B around the connecting portion 41 on the front surface 13a of the extended piece 13.

  The locking portion 40 is formed in a thin plate shape extending in a direction orthogonal to the mounting seat surface 14a. Further, a gripped portion 43 that can be gripped by pliers P as a gripping tool is provided on the front surface of the locking portion 40. The gripped portion 43 constitutes an operating portion for causing the locking portion 40 to operate the pliers P when the locking portion 40 is separated from the box body B using the pliers P.

  Further, a locking surface 40 a is formed on the rear surface of the locking portion 40 and is located on the same plane as the front end surface of the box body B. In the wiring box 11 of the third embodiment, the lightweight shape steel 10 is attached by the mounting screw 19 in a state where the mounting seat surface 14a is brought into contact with the lip portion 10a and the locking surface 40a is locked to the front surface 10c. It is attached to the lip portion 10a.

  Further, a gripped portion 43 is formed on the locking portion 40. For this reason, the gripped portion 43 can be easily gripped with the pliers P, the dividing operation of the locking portion 40 performed while gripping the gripped portion 43 with the pliers P is facilitated, and the locking portion 40 is connected to the wiring box. The operation of removing from 11 can be easily performed.

(Fourth embodiment)
Next, a fourth embodiment of the present invention will be described with reference to FIGS. Note that in the third embodiment described below, the same components as those in the first embodiment described above are denoted by the same reference numerals, and redundant description thereof is omitted or simplified.

  As shown in FIGS. 8 to 11, the extended piece 13 is a central portion in the length direction of the left side wall 12 c, and a locking portion 70 protrudes between the two locking projections 15. . That is, the locking portion 70 is integrally formed on the end surface on the front side of the box body B (the front surface 13a of the extending piece 13) on the left side wall 12c of the box body B. The locking part 70 is connected (integrally formed) to the front surface 13a via a connecting part 71 as a connection structure on the box body B side in the locking part 70. Moreover, the latching | locking part 70 is formed from the thin plate extended in the direction away from the box main body B orthogonally to the mounting seat surface 14a. A locking surface 70a located on the same plane as an end surface on the front side of the box body B (the front surface 13a of the extended piece 13) is provided on the rear surface of the locking portion 70 that faces the rear side of the box body B. Is formed. In addition, in the latching | locking part 70, let the surface which opposes the latching surface 70a be the front surface 70b.

  The connecting portion 71 is composed of an edge on the proximal end side of the locking portion 70 and is formed in a thin plate shape (thin wall shape). For this reason, the connecting portion 71 can be easily separated from the box body B from the base end side which is the box body B (extending piece 13) side. The connecting portion 71 is formed in a thin plate shape from the locking portion 70, so that the connecting portion 71 is provided with a dividing means for separating and removing the locking portion 70 from the box body B.

  The locking portion 70 is formed in a flat plate shape as a whole, and is formed in a U shape when viewed from the front. And the latching | locking part 70 is connected with the extended piece 13 by the two connection parts 71, and the two connection parts 71 are connected by the front end side. That is, a through hole 72 is formed between the two connecting portions 71 to the extending piece 13 in the locking portion 70. Further, the locking portion 70 has a required thickness and is formed in a flat plate shape that can be pressed by an adult male hand, specifically, a finger. A plurality of recesses 70d are formed on the front surface 70b of the locking portion 70, but nothing protrudes from the front surface 70b. For this reason, the front surface 70b of the latching | locking part 70 does not generate | occur | produce inconvenience in pressing with a finger, and is formed in the size suitable for pressing with a finger. That is, the locking portion 70 is formed in a size that is neither too small nor too large than the finger. And the front surface 70b of the latching | locking part 70 comprises the press part suitable for pressing with a finger | toe.

  The through hole 72 is formed in the locking portion 70. As shown in FIG. 11, the tip of one gripping piece Pa of the pliers P serving as the gripping tool can be inserted into the through hole 72. Then, it is possible to insert one gripping piece Pa of the pliers P into the through-hole 72 and grip a part of the locking portion 70 with the one gripping piece Pa and the other gripping piece Pb of the pliers P. It has become. That is, a gripped portion 73 that is an operation portion that is gripped by the pliers P is formed in the locking portion 70.

  Further, as shown in FIG. 10, an engagement recess 74 is formed in the locking surface 70 a of the locking portion 70. The engagement recess 74 has a gap between the locking surface 70a of the locking portion 70 and the front surface 10c in a state where the locking surface 70a of the locking portion 70 is locked to the front surface 10c of the lightweight section steel 10. It is open outward so as to be formed, and the tip of the driver (minus) D can be inserted into the gap, that is, the engagement recess 74. When the driver D is tilted with the tip of the driver D inserted into the engagement recess 74, the tip of the driver D is engaged with the inner surface of the engagement recess 74.

  As shown in FIG. 9, the wiring box 11 of the fourth embodiment is light in a state where the mounting seat surface 14a is brought into contact with the lip portion 10a and the locking surface 70a is locked to the front surface 10c. The shape steel 10 is grasped by hand from the side surface 10f side. At this time, the locking part 70 is disposed at a position where the finger (thumb) is located, and the locking part 70 can be grasped by the hand together with the lightweight steel 10. Further, in a state where the lightweight steel 10 is grasped by hand, the front surface 70b of the locking portion 70 can be pressed with the thumb toward the front surface 10c.

  Note that the locking portion 70 has a flat plate shape as a whole and is formed in a U-shape when viewed from the front. That is, the entire locking portion 70 is formed in a flat plate shape so that when the front surface 70b is pressed toward the front surface 10c, the locking portion 70 itself does not rotate on the front surface 10c with its own rotation axis. Moreover, since the latching | locking part 70 is connected with the extended piece 13 by the connection part 71 at two places, the latching | locking part 70 left | separated in the standing direction of the lightweight steel 10 with respect to the front surface 10c. It abuts at a position (see FIG. 8).

  In addition, when the locking portion 70 is pressed toward the front surface 10c, the rotation of the box body B in the direction toward the lightweight steel 10 with the locking portion 70 as the rotation center and the lightweight steel. 10 is formed in a size that prevents movement to the rear side. For this reason, it is possible to prevent the wiring box 11 from entering the gap S formed between the pair of lip portions 10a due to the contact of the locking surface 70a with the front surface 10c, and the wiring box 11 from being inclined. it can.

  When the front surface 70b of the locking portion 70 is pressed with the thumb, the locking surface 70a of the locking portion 70 is pressed against the front surface 10c, and the locking portion 70 is sandwiched between the thumb and the front surface 10c. Then, the box 11 for wiring can be hold | maintained at the lightweight shape steel 10 in the state which the end surface by the side of the front surface of the box main body B and the front surface 10c became flush. Thereafter, the wiring box 11 is attached to the lip portion 10 a of the lightweight steel 10 by the attachment screw 19.

  Then, after the attachment screw 19 is screwed into the lip portion 10 a and the wiring box 11 is attached to the lightweight shape steel 10, the locking portion 70 is removed from the wiring box 11. In the state where the wiring box 11 is attached to the lightweight section steel 10, the engagement recess 74 is opened laterally between the front surface 10 c and the locking surface 70 a of the locking portion 70. Then, as shown in FIG. 10, the tip of the driver D is inserted into the engagement recess 74, and the driver D is tilted with the tip of the driver D engaged with the engagement recess 74. Then, as shown by a two-dot chain line in FIG. 10, the locking portion 70 is bent from the base end side. By repeatedly tilting the driver D, the locking portion 70 is broken off from the connecting portion 71. That is, the connection between the locking portion 70 and the box body B by the connecting portion 71 is released, and the locking portion 70 is separated and removed from the box body B.

  Alternatively, as shown in FIG. 11, the gripping piece Pa of the pliers P is inserted into the through-hole 72, and the gripped portion 73 is gripped by the gripping pieces Pa and Pb. Thereafter, the locking portion 70 is separated from the box body B by the pliers P that grips the gripped portion 73. Then, the connection between the locking portion 70 and the box body B by the connecting portion 71 is released, and the locking portion 70 is separated and removed from the box body B.

In addition, you may change the said embodiment as follows.
In 3rd Embodiment, as shown in FIG. 12, the latching | locking part 40 is extended to the inner side of the box main body B, and the driver D as a tool is provided in the front surface of the extended latching | locking part 40. An engagement recess 40b that can engage the tip may be provided. The engaging recess 40b constitutes an operating portion for causing the locking portion 40 to operate the driver D when the locking portion 40 is separated from the box body B using the driver D.

  Then, the front end of the driver D is engaged with the engaging recess 40b, and the locking portion 40 is tilted about the connecting portion 41 by the operation of the driver D, whereby the connecting portion 41 is repeatedly bent, and the locking portion 40 is moved. It may be divided from the box body B. In other words, since the tip of the driver D can be reliably engaged with the locking portion 40 by the engagement recess 40b, the dividing operation of the locking portion 40 using the driver D is facilitated, and the locking portion 40 is wired. The removal work from the box 11 can be easily performed.

  In each embodiment, as shown in FIG. 13, a contact piece 60 may protrude from the box body B of the wiring box 11. For example, in the wiring box 11 according to the first embodiment, the abutting piece 60 abuts the mounting seat surface 14 a against the lip portion 10 a on the front surface 10 c side of the lightweight steel 10, and engages the locking portion 17. When the stop surface 17a is locked to the front surface 10c of the lightweight steel plate 10, it comes into contact with the lip portion 10a on the rear surface 10e side. Therefore, the contact of the contact piece 60 with the lip portion 10a prevents the wiring box 11 from entering the gap S formed between the pair of lip portions 10a and prevents the wiring box 11 from tilting. Can do. The contact piece 60 is provided with a plurality of folding portions 60a so that the contact piece 60 can be folded from the folding portion 60a in accordance with the width of the gap S and the position of the other lip portion 10a. May be.

  In the second embodiment, the flange portion is extended outward from the upper side wall 12a and the lower side wall 12b of the wiring box 11, and the connection protrusion 33 of the locking member 30 is locked to the flange portion. Good.

  In each embodiment, the wiring box 11 is attached to the lightweight section 10 as a construction material, but the wiring box 11 may be attached to a wooden pole as the construction material. In the wiring box 11 of the fourth embodiment, when the locking portion 70 cannot be grasped by hand together with the wooden pole, the locking portion 70 may be pressed from the front surface 70b side.

In each embodiment, the locking protrusion 15 may be deleted. Alternatively, three or more locking protrusions 15 may be formed.
In each embodiment, the attachment hole 14b may be formed in a long hole shape that extends in the depth direction of the box body B.

  In the second embodiment, a connection protrusion is formed on the left side wall 12c, a connection hole in which the connection protrusion 33 can be engaged is formed in the connection piece 32 of the locking member 30, and unevenness between the connection protrusion and the connection hole is formed. The engagement relationship may be reversed from that of the second embodiment.

In the first embodiment, a gripped portion that can be gripped with the pliers P may be formed in the locking portion 17.
In each embodiment, the wiring box 11 may be configured to include a box body having a frame shape having openings on both front and rear surfaces.

  In the first embodiment, the tip of the driver D is inserted into the recess 13b, the connecting portion 16 is pushed by the driver D to bend the locking portion 17, and the locking portion 17 is removed from the box body B by being removed. Also good.

  ○ In the third embodiment, instead of forming a part of the connecting portion 41 as a dividing means in a thin shape, the locking portion 40 and the end face on the front side of the box body B (the front face 13a of the extended piece 13) May be connected by a connecting portion 41 having a plurality of thin plate shapes, and the connecting portion 41 may be used as a dividing means.

  In the first to fourth embodiments, the lip portion is inserted into the gap S of the lightweight section steel 10 with the wiring box 11 attached to the lightweight section steel 10 by using one mounting screw 19. A locking projection for locking to the edge of 10a is formed on the left side wall 12c (side wall on which the mounting seat surface 14a is formed). Alternatively, using one mounting screw 19, a locking projection that is locked to the rear surface 10 e of the lightweight steel 10 is formed on the left side wall 12 c in a state where the wiring box 11 is attached to the lightweight steel 10. . Then, a rotation restricting means for restricting the rotation of the box body B with the single mounting screw 19 as the rotation center may be configured by the locking protrusion.

  As shown in FIG. 14, the locking portion 70 according to the fourth embodiment is attached to the wiring box 11 by attaching a mounting base 80 integrally provided with the locking portion 70 to the left side wall 12 c of the box body B. It may be provided. The mounting base 80 is integrally provided with a rectangular plate-shaped base body 81 made of a synthetic resin material and the locking portion 70 having the same configuration as that of the fourth embodiment protruding from the base body 81. .

  In the fourth embodiment, a recess 13 b may be formed around the connection portion 71 of the locking portion 70 on the end surface on the front side of the box body B, that is, on the front surface 13 a of the extending piece 13.

Next, the technical idea that can be grasped from the above embodiment and other examples will be described below.
(1) A wiring box provided with a box body having an opening at least on the front surface and attached to a construction material erected on the rear side of a building wall material, the side wall of the box body having the box body A mounting seat surface that comes into contact with a side surface of the building material in a state of being attached to the building material, and a direction orthogonal to the mounting seat surface on the front side of the box body on the side wall side on which the mounting seat surface is formed Projecting so as to be separated from the box main body, and having a locking surface located on the same plane as the front end surface of the box main body on the rear surface, the locking surface being orthogonal to the side surface of the construction material With a locking part that can be locked to the construction material by locking it to the front of the construction material,
The locking portion is connected to the box body via a connecting portion formed integrally with the locking portion and the front end surface of the box body, and the connecting portion is an end surface on the front side of the box body. And projecting from the inner bottom surface of the recess recessed in the depth direction of the box body from the end surface to the end surface on the front surface side of the box body, the connecting portion includes the locking portion and the A wiring box characterized in that a dividing means for dividing the box body is provided, and the locking portion can be separated and removed from the box body using the dividing means.

  By configuring in this way, the locking portion is connected to the box body via the connecting portion, and even if the connecting portion is provided with a dividing means, the locking surface is the end surface on the front side of the box main body. It is possible to position them on the same plane. Therefore, while facilitating the work of dividing the locking portion from the box body, the front surface and the end surface on the front side of the box body are connected with the locking surface of the locking portion locked to the front surface of the construction material. It can be flush.

The perspective view which shows the attachment state to the lightweight shape steel of the wiring box of 1st Embodiment. The side view which shows the box for wiring of 1st Embodiment. FIG. 3 is a cross-sectional view taken along line 3-3 in FIG. 1, showing a state in which the wiring box is attached to the lightweight section steel. Sectional drawing which shows the attachment state to the lightweight shape steel of the box for wiring of 1st Embodiment. The perspective view which shows the attachment state to the lightweight shape steel of the box for wiring of 2nd Embodiment. FIG. 6 is a cross-sectional view taken along line 6-6 of FIG. The perspective view which shows the attachment state to the lightweight shape steel of the box for wiring of 3rd Embodiment. The perspective view which shows the attachment state to the lightweight shape steel of the box for wiring of 4th Embodiment. Sectional drawing which shows the attachment state to the lightweight shape steel of the box for wiring of 4th Embodiment. The perspective view which shows the bending operation | work of a latching | locking part. The perspective view which shows the state which hold | gripped the latching | locking part. The perspective view which shows another example of the box for wiring of 3rd Embodiment. The plane sectional view showing the box for wiring of another example. The perspective view which shows the box for wiring of another example.

Explanation of symbols

  B: Box body, D: Driver as a tool, K: Wall plate as a wall material, P: Pliers as a gripping tool in the tool, 10: Light-weight shape steel as a structural steel material as a construction material, 10a: Side surface of the construction material Lip portion, 10c ... front surface of construction material, 10d ... corner portion, 11 ... wiring box, 12c ... left side wall as side wall, 12f ... connection hole constituting engagement relationship, 13b ... recess, 14a ... installation Seat surface, 14b ... mounting hole, 15 ... locking projection as rotation restricting means, 16 ... connecting portion constituting the connecting structure, 17 ... locking portion as operating portion and gripped portion, 17a ... as rear surface Locking surface, 19: Mounting screw, 30: Locking member constituting the locking portion, 31a: Locking surface, 33: Connecting protrusion constituting the engaging relationship, 40: Locking portion, 40a: Engagement as rear surface Stop surface, 40b... Engaging recess constituting the operation part, 41 Connection part constituting the connection structure, 42 ... recess, 43 ... gripped part constituting the operation part, 70 ... locking part, 70a ... locking surface as the rear surface, 71 ... connection part constituting the connection structure, 73 ... gripped part constituting the operating part, 74 ... engagement recess constituting the operating part.

Claims (16)

A wiring box having a box body having an opening on at least a front surface and attached to a construction material standing on a rear side of a building wall material,
On the side wall of the box body, provided with a mounting seat surface that comes into contact with the side surface of the construction material in the state of attachment to the construction material of the box body,
The front side of the box body on the side wall side where the mounting seat surface is formed protrudes away from the box body along the direction perpendicular to the mounting seat surface, and the rear surface is the same as the end surface on the front side of the box body. A locking surface located on a plane, and locking the locking surface to the front surface of the construction material orthogonal to the side surface of the construction material, and the front end face of the box body and the front surface of the construction material, With a locking part that locks the box body to the construction material in a state where
The locking portion is connected to the box body via a connection structure that connects the locking portion and the box body, and the connection structure includes a division for dividing the locking portion and the box body. Means are provided, and the locking portion can be separated and removed from the box body using the dividing means. The connection structure includes a connection portion integrally formed with the locking portion and the box body, and the locking portion includes a locking portion from the connection portion using a tool and a box body. The wiring box according to claim 1, wherein an operation unit is provided for operating the tool to the locking unit when dividing. The wiring box according to claim 2, wherein the dividing means is configured by forming at least a part of the connecting portion thinner than the locking portion. The said operation | movement part is a to-be-gripped part hold | gripped with the holding tool as said tool, This to-be-held part is formed in the thin plate shape which can be hold | gripped with the said holding tool. Wiring box. 4. The wiring box according to claim 2, wherein the operating portion is an engaging recess that is recessed in the locking portion and engages with a tip of a driver as the tool. 6. A recess recessed in the depth direction of the box body from the end surface is formed around the connecting portion at the end surface on the front side of the box body. Wiring box described in the section. The locking portion and the box main body are formed separately, and the connection structure is configured by an engagement relationship formed between the locking portion and the box main body, and the dividing means includes the engagement portion. The wiring box according to claim 1, wherein the connection relationship is configured to be cancelable. The box body is attached in a state in which the attachment seat surface is in contact with a lip portion on the front side of the construction material among a pair of front and rear lip portions provided on a side surface of the structural steel material as the construction material, and the attachment seat In the state in which the locking surface of the locking portion is locked to the front surface of the building material, a short hole-like mounting hole corresponding to the lip portion on the front surface side of the building material is formed on the side wall on which the surface is formed. The wiring box according to claim 1, wherein the wiring box is formed. The box body is attached to the structural steel material by attaching one mounting screw to the lip portion from the mounting hole, and the side wall on which the mounting seat surface is formed is locked to the structural steel material and The wiring box according to claim 8, wherein a rotation restricting means for restricting the rotation of the box body with the mounting screw as a rotation center is provided. 10. The wiring box according to claim 9, wherein the rotation restricting means is at least a pair of locking protrusions that are locked to a lip portion on a front surface side of the construction material and a corner portion positioned between the front surface lip portion. . A wiring box mounting method for mounting a wiring box having a box body having an opening at least on a front surface to a building material standing on the rear side of a building wall material,
The wiring box includes, on the side wall of the box body, a mounting seat surface that comes into contact with a side surface of the building material when the box body is attached to the building material, and the side wall side on which the mounting seat surface is formed The front side of the box main body in FIG. 4 has a locking surface that protrudes away from the box main body along a direction orthogonal to the mounting seat surface and has a locking surface on the same plane as the front side end face of the box main body. The locking portion is connected to the box body via a connecting structure that connects the locking portion and the box body, and the connecting structure includes the locking portion and the box. A dividing means for dividing the main body is provided,
The mounting seat surface is brought into contact with the side surface of the building material, the locking surface is locked to the front surface of the building material orthogonal to the side surface, and the box body is locked to the building material by the locking portion. After attaching the wiring box to the construction material with a mounting screw in a state where the front end face of the main body and the front surface of the construction material are flush with each other,
A method for attaching a wiring box, comprising: separating the locking portion from the box body using the dividing means; and removing the locking portion from the box body. The attachment of the wiring box according to claim 11, wherein the connection structure is a connection part integrally formed with the locking part and the box body, and the locking part is separated from the box body by the connection part. Method. The wiring box mounting method according to claim 11 or 12, wherein the locking part is separated from the box body by operating a tool in an operating part provided in the locking part. 14. The wiring box mounting method according to claim 13, wherein the holding portion is gripped by a gripping tool as the tool and is separated from the box body by the gripping portion as the operating portion. The wiring box mounting method according to claim 13, wherein the locking portion is separated from the box body by engaging a driver as the tool with an engagement recess as the operation portion. The locking portion and the box body are formed separately, and the connection structure is configured by an engagement relationship configured between the locking portion and the box body, and the locking portion is The method for attaching a wiring box according to claim 11, wherein the engagement relationship is released and the box body is divided.

Images