JP2006304550A - Box for wiring/piping and box device for wiring/piping - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a box for wiring/piping and a box device for wiring/piping wherein deflective deformation in a box cover can be prevented. <P>SOLUTION: The box 20 for wiring/piping includes a box body 21 formed in the shape of a closed-end box constructed of a bottom wall 22 and side walls 23a to 23d erected from the peripheral edges of the bottom wall 22 and having an opening in one face. Further, the box 20 for wiring/piping includes first and second fixtures 24 and 29 that fix the frame-like box cover 10, fit in the opening of the box body 21 on the box body 21. On the inside surfaces of the side walls 23a to 23d of the box body 21, there are provided holding pieces 32 as supports that are abutted against the back surface of the box cover 10 and support the box cover 10 from the back surface side. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a wiring / piping box and a wiring / piping box device, each of which includes a box cover and a wiring / piping box.

  Conventionally, a wiring box having a bottomed square box shape and a box cover attached to the opening side of the wiring box have been used to install a wiring appliance such as an outlet on the wall of the building ( For example, see Patent Document 1.) The wiring box has bosses at four corners inside thereof. An internal thread portion is formed on the surface facing the opening side of the wiring box at each boss portion.

  The box cover has a rectangular frame shape and is formed in a size corresponding to the opening of the wiring box. At the four corners of the box cover, through-holes that penetrate the box cover are formed. Furthermore, an instrument fixing portion that is opposed to each other is formed at the center of the pair of side piece portions that face each other of the box cover. The appliance fixing portion is formed on the box cover in order to fix the wiring appliance to the box cover.

In order to install the wiring apparatus on the wall using the wiring box and the box cover having the above configuration, first, the wiring box is fixed to the pillar of the building, and then the wiring box is passed through the through hole of the box cover. A screw is inserted into the female screw portion and screwed to attach the box cover to the opening side of the wiring box. At this time, the box cover is attached to the wiring box in a state of being accommodated inside the wiring box. For this reason, even when the box cover is attached, the thickness of the wiring box does not increase, and the wiring box can be used even where the wall thickness is thin. Thereafter, when the wiring device is fixed to the device fixing portion of the box cover, the wiring device is attached to the wiring box and installed on the wall.
JP 2001-16742 A

  By the way, in a state where the box cover is attached to the wiring box, the four corners of the box cover are supported by the bosses. In the box cover, the strength in the depth direction of the wiring box is lower than that of the corresponding contact portion except for the portion (four corners) where the boss portion abuts.

  Here, the said fixture fixing | fixed part will be formed not between the four corners of a box cover but between the corners adjacent in a side part. For this reason, for example, in the state where the outlet as a wiring device is fixed to the appliance fixing portion, when a force to insert / remove the plug is applied to the outlet, this force is applied to the appliance fixing portion from the outlet via the appliance fixing portion. It acts on the formed side part. Then, the side part to which the force acts is bent to the bottom side of the wiring box by the force, and the box cover is bent and deformed.

  The present invention has been made paying attention to the problems existing in the above-described conventional technology. An object of the invention is to provide a wiring / piping box and a wiring / piping box device capable of suppressing the bending deformation of the box cover.

  In order to solve the above problems, the invention according to claim 1 includes a box body formed in a box shape having an opening on at least one surface, and a box cover fitted inside the opening side of the box body. In a wiring / piping box provided with a fixing part for fixing the box body to the box body, a support part for supporting the box cover from the back side by contacting the back surface of the box cover on the inner surface of the side wall of the box body. The summary is provided.

  According to a second aspect of the present invention, in the wiring / piping box according to the first aspect, at least one pair of the support portions provided at positions opposite to each other of the box body is provided for the support portion. Is the gist.

  According to a third aspect of the present invention, in the wiring / piping box according to the first or second aspect, the box body is formed in a polygonal box shape, and the support portion is at least along the circumferential direction of the box body. The gist is that it is provided at the center of each side wall.

  According to a fourth aspect of the present invention, in the wiring / piping box according to any one of the first to third aspects, a device mounting portion for mounting a wiring device is opposed to the box cover. The gist is that the support portion is provided at a position corresponding to the instrument mounting portion.

  According to a fifth aspect of the present invention, in the wiring / piping box according to the fourth aspect, a plurality of pairs of the instrument mounting portions are arranged in parallel, and the support portions are positioned between adjacent instrument mounting portions. The gist is that it is provided.

  Invention of Claim 6 is the box for wiring and piping as described in any one of Claims 1-5, The said support part hold | maintains the edge of the partition plate which partitions off the inside of a box main body The gist of the present invention is that it also serves as a holding portion for the purpose of doing this.

  The invention according to claim 7 is provided with a box cover and a box body formed in a box shape having an opening on at least one surface, and the box cover fitted on the opening side of the box body is used as the box body. It is composed of a wiring / piping box provided with a fixing portion on the box body, and a support portion is provided on the inner surface of the side wall of the box body so as to contact the back surface of the box cover and support the box cover from the back surface side. This is the summary.

  According to an eighth aspect of the present invention, in the wiring / piping box device according to the seventh aspect, a concave portion into which an end portion of the support portion enters is formed on the back surface of the box cover. The gist is that the movement of the box cover is restricted by the contact between the inner surface and the end of the support portion.

  According to the present invention, bending deformation of the box cover can be suppressed.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, an embodiment of a wiring / piping box and a wiring / piping box device embodying the present invention will be described with reference to FIGS. In the following description, the “upper”, “lower”, “left”, “right”, “front”, and “rear” of the box cover 10 and the wiring / piping box 20 have the direction of the arrow Y1 shown in FIG. The direction of the arrow Y2 is the left-right direction, and the direction of the arrow Y3 is the front-back direction.

  As shown in FIG. 1, the wiring / piping box device M has a rectangular box-shaped wiring / piping box 20 having an opening on one side, and an opening side of a box body 21 provided in the wiring / piping box 20. It is comprised from the box cover 10 attached.

  First, the box cover 10 will be described. The box cover 10 is formed in a square frame shape from a synthetic resin material. Here, the side portions of the box cover 10 that oppose each other in the vertical direction indicated by the arrow Y1 in FIG. 1 are the upper side portion 12a and the lower side portion 12b, and the side portions that oppose each other in the left-right direction indicated by the arrow Y2 are illustrated. Let it be the left side part 12c and the right side part 12d.

  Insertion holes 13 are formed in the four corners of the box cover 10 so as to penetrate the box cover 10, and each insertion hole 13 is formed so that a screw B can be inserted. As shown in FIG. 4, it is the back surface of each side part 12a-12d of the box cover 10, Comprising: The center (each side part 12a-12d of each side part 12a-12d along the circumferential direction of the box cover 10 In the center in the length direction, a recess 14 is provided.

  Further, as shown in FIGS. 3 and 4, two instrument mounting portions 15 are provided on each of a pair of opposite side portions (upper side portion 12 a and lower side portion 12 b) of the box cover 10. Yes. In the upper side portion 12a and the lower side portion 12b, the instrument mounting portion 15 is provided between the concave portion 14 and the adjacent corner portion. The appliance mounting portion 15 can be attached to one wiring appliance by a pair of appliance mounting portions 15 provided at positions opposite to each other in the vertical direction, and the box cover 10 is provided with two pairs of appliance mounting portions 15. ing.

  Each instrument mounting portion 15 is provided so as to project into the frame of the box cover 10. Each instrument mounting portion 15 is embedded with a nut (not shown) made of a metal material. On one surface (front surface) of each instrument mounting portion 15, an instrument mounting hole 15a is formed corresponding to the nut. In addition, in the upper side portion 12a and the lower side portion 12b, the instrument mounting portion 15 provided at a position (on the left upper side and the lower right side of the box cover 10) facing the diagonal line of the box cover 10 includes the instrument A screw groove 15b is formed alongside the mounting hole 15a.

  Each screw groove 15b is formed by cutting out the upper side portion 12a and the lower side portion 12b from the outer edge of the box cover 10 toward the inner edge side. In each screw groove 15b, a wide portion 15d wider than the inner edge side is formed on the outer edge side of the box cover 10. In the instrument mounting part 15 in which the screw groove 15b is formed, a locking hole 15c is formed through the instrument mounting part 15 on the inner edge side of the box cover 10 with respect to the screw groove 15b.

  Next, the wiring / piping box 20 will be described. As shown in FIGS. 1 and 2, the box body 21 provided in the wiring / piping box 20 includes a bottom wall 22 having a square plate shape, and four side walls 23 a to 23 a standing on the four side peripheral edges of the bottom wall 22. It is formed in a bottomed square box shape having an opening on one surface (in this embodiment, the front surface) from 23d. Here, in FIG. 1, the side walls opposite to each other in the vertical direction indicated by the arrow Y1 are referred to as the upper side wall 23a and the lower side wall 23b, and the side walls opposite to each other in the left and right direction indicated by the arrow Y2 are referred to as the left side wall 23c and the right side wall 23d. In the wiring / piping box 20, the size of the opening of the box body 21, that is, the size of the space surrounded by the four side walls 23 a to 23 d is slightly larger than the outer size of the box cover 10. Yes. For this reason, the box cover 10 can be fitted inside the box body 21 (internal fitting).

  On the inner surfaces of a pair of opposing side walls (upper side wall 23a and lower side wall 23b) of the box main body 21 and on one diagonal line of the box main body 21 (the left side of the upper side wall 23a and the right side of the lower side wall 23b) A first fixing part 24 is provided as a fixing part for fixing the box cover 10 to the box body 21. Each first fixing portion 24 is embedded with a nut (not shown) made of a metal material.

  A first contact surface 24 a is formed on the surface (front surface) of each first fixing portion 24 that faces the opening of the box body 21. The first fixing portion 24 is provided on the box body 21 such that the first contact surface 24 a is retracted from the opening end of the box body 21 toward the bottom wall 22. The base end portion of each first fixing portion 24 is formed thicker than other portions (see FIGS. 1 and 6). By forming the base end portion of the first fixing portion 24 thick, the strength of the first fixing portion 24 is ensured. A screw hole 24b is formed in the first contact surface 24a corresponding to the nut in the first fixed portion 24. Further, a projecting piece 24c projecting toward the opening side of the box body 21 is provided on the first contact surface 24a.

  5 and 6, when the box cover 10 is fitted inside the box body 21 (when fitted), the first contact surface 24a on the opening side of the box body 21 The back surface of the instrument mounting portion 15 in which the screw groove 15b is formed comes into contact. At this time, the retraction amount of the first contact surface 24 a is set so that the front surface of the box cover 10 is flush with the opening end of the box body 21.

  The screw hole 24b corresponds to the screw groove 15b, and the projecting piece 24c is configured to be inserted into the locking hole 15c. Further, the wide portion 15d of the screw groove 15b is formed to be slightly larger than the width of the first fixing portion 24 in the left-right direction. For this reason, when the box cover 10 is fitted inside the box body 21, the base end portion thicker than other portions in the first fixing portion 24 enters the inside of the wide portion 15 d. The box cover 10 can be fixed to the box body 21 by screwing the screws B into the screw holes 24b from the screw grooves 15b.

  As shown in FIGS. 1 and 2, the box cover 10 is fixed to the box body 21 at two corners (upper right corner and lower left corner) opposite to each other on the other diagonal line of the box body 21. A second fixing portion 29 is provided as a fixing portion. Each second fixing portion 29 has a bottom wall along two adjacent side walls that form each corner (the upper right corner is the upper side wall 23a and the right side wall 23d, and the lower left corner is the lower side wall 23b and the left side wall 23c). 22 is erected.

  A second contact surface 29 a is formed on the surface (front surface) of each second fixing portion 29 that faces the opening of the box body 21. The second fixing portion 29 is provided on the box body 21 such that the second contact surface 29 a is retracted from the opening end of the box body 21 toward the bottom wall 22. A screw hole 29b for forcibly screwing the screw B is formed in the second contact surface 29a.

  As shown in FIG. 5, when the box cover 10 is fitted inside the box body 21 (when fitted), the box cover 10 is placed on the second contact surface 29 a on the opening side of the box body 21. The back surfaces of the two corners are in contact with each other. At this time, the retreat amount of the second contact surface 29a is set so that the front surface of the box cover 10 is flush with the open end of the box body 21. The screw hole 29 b corresponds to the insertion hole 13, and the box cover 10 can be fixed to the box body 21 by screwing the screw B into the screw hole 29 b from the insertion hole 13.

  Moreover, as shown in FIG. 1, the upper side wall 23a, the lower side wall 23b, the left side wall 23c, and the right side wall 23d are each provided with a connection hole 26 for connecting a conduit (not shown). The connection hole 26 is closed by a knockout portion 27, and when the wiring such as a cable is wired in the box body 21 or the piping such as a conduit is connected to the connection hole 26, the knockout portion 27 is connected to the connection hole 26. Has been removed.

  As shown in FIG. 2, the upper side wall 23a, the lower side wall 23b, the left side wall 23c, and the right side wall 23d of the box body 21 are provided with edges of a partition plate 30 (shown by a two-dot chain line) for partitioning the inside of the box body 21. A partition plate holding portion 31 for holding is provided. The partition plate holding portion 31 includes a pair of holding pieces 32 formed on the side walls 23a to 23d so as to face each other. As shown in FIG. 1, in the partition plate holding part 31 provided on the upper side wall 23a and the lower side wall 23b, one holding piece 32 extends from the bottom wall 22 to the opening side of the box body 21, and the other side The holding piece 32 extends only from the bottom wall 22 to less than half of the box body 21 in the depth direction. Further, in the partition plate holding portion 31 provided on the left side wall 23c and the right side wall 23d, the pair of holding pieces 32 respectively extend from the bottom wall 22 to the opening side of the box body 21.

  And the partition plate holding | maintenance part 31 is provided so that it may make a pair in the position where the box main body 21 mutually opposes on the upper and lower sides and right and left. That is, the box body 21 holds the both edges of one partition plate 30 by two partition plate holding portions 31 that are opposed to each other vertically and horizontally, and the one partition plate 30 is attached to the box body 21. It can be installed. Moreover, each partition plate holding | maintenance part 31 is provided in the center (center of the length direction of each side wall 23a-23d) of each side wall 23a-23d along the circumferential direction of the box main body 21. As shown in FIG.

  As shown in FIG. 6, in each partition plate holding part 31, the end part 32 a of the holding piece 32 extending to the opening side of the box body 21 is retracted from the opening side of the box body 21 to the bottom wall 22 side. When the box cover 10 is fitted inside the box body 21, the end 32 a comes into contact with the inner surface (back surface) of the recess 14 of the box cover 10.

  At this time, the recess amount of the recess 14 and the retraction amount from the opening end of the end portion 32 a are set so that the front surface of the box cover 10 is flush with the opening end of the box body 21. And the holding piece 32 extended to the opening side of the box main body 21 among the partition plate holding | maintenance parts 31 contact | abuts to the back surface of the box cover 10 fitted in the box main body 21, and supports this box cover 10 from the back surface side. Part. For this reason, in the box main body 21, the support portion (holding piece 32) also serves as the partition plate holding portion 31.

  In order to configure the wiring / piping box device M using the box cover 10 and the wiring / piping box 20 configured as described above, first, the box cover 10 is fitted inside the box body 21. The projecting piece 24c is inserted into the locking hole 15c, and the end 32a enters the recess 14. Then, the movement of the box cover 10 is formed by the contact between the side surface of the projecting piece 24c and the inner surface of the locking hole 15c, and the contact between the inner surface of the recess 14 and the side surface of the end portion 32a. Further, the base end portion of the first fixing portion 24 enters the wide portion 15d of the screw groove 15b, and the back surface of the box cover 10 is prevented from coming into contact with the base end portion of the first fixing portion 24. As a result, when the box cover 10 is fitted inside the box body 21, the box cover 10 protrudes from the opening end of the box body 21 by increasing the thickness of the base end portion of the first fixing portion 24. It is prevented that the internal fitting state of the ten box bodies 21 becomes unstable.

  Next, the box cover 10 is fixed to the box body 21 by screwing the screw B into the screw hole 24 b from the screw groove 15 b and screwing the screw B into the screw hole 29 b from the insertion hole 13. As a result, as shown in FIGS. 5 and 6, a wiring / piping box device M including the box cover 10 and the wiring / piping box 20 is configured. After that, one wiring fixture is attached to each of the two fixture mounting portions 15 that are paired up and down, and the wiring fixture is attached to the wiring / piping box 20 via the box cover 10.

  On the opening side of the box body 21, the first contact surface 24 a of the first fixing portion 24 and the second contact surface 29 a of the second fixing portion 29 are in contact with the back surface of the box cover 10. That is, both the upper side part 12 a and the lower side part 12 b along the circumferential direction of the box cover 10 are supported from the back side by the first fixing part 24 and the second fixing part 29. At this time, the front surface of the box cover 10 is flush with the open end of the box body 21.

  Further, partition plate holding portions 31 are provided on the four side walls 23 a to 23 d of the box body 21, and the end portions 32 a of the holding pieces 32 are the inner surfaces of the concave portions 14 of the four side portions 12 a to 12 d of the box cover 10 ( The center of each side part 12a-12d is supported from the back side. Further, the holding piece 32 that supports the upper side portion 12a and the lower side portion 12b is located between the two instrument mounting portions 15 provided in the upper side portion 12a and the lower side portion 12b (center). .

  When a force for pushing the wiring device into the box body 21 is applied to the wiring device attached to the device attachment portion 15, the force is applied to the upper side portion 12 a and the lower side portion via the device attachment portion 15. 12b. At this time, as for the upper side part 12a and the lower side part 12b in which the instrument mounting part 15 is formed, both sides (both sides in the length direction) along the circumferential direction of the box cover 10 are the first fixing part 24 and the second fixing part. 29 is supported from the back side, and the center is supported by the holding piece 32 from the back side.

  For this reason, the force acting on the upper side portion 12a and the lower side portion 12b is received at three locations of the first fixing portion 24, the second fixing portion 29, and the holding piece 32, and the upper side portion 12a and The lower side portion 12b is supported at three points. As a result, the upper side portion 12a and the lower side portion 12b are prevented from being bent and deformed toward the bottom wall 22 side of the box body 21 by the force.

  Further, the left side portion 12 c and the right side portion 12 d are also supported at two locations, the second fixing portion 29 and the holding piece 32. For this reason, even if the said force acts on the left side part 12c and the right side part 12d, bending to the bottom wall 22 side of the box main body 21 is suppressed.

According to the above embodiment, the following effects can be obtained.
(1) The box body 21 is provided with a first fixing portion 24 and a second fixing portion 29, and holding pieces 32 as support portions are provided on the inner surfaces of the side walls 23a to 23d. Then, the first fixing portion 24 and the second fixing portion 29 support both sides of the upper side portion 12a and the lower side portion 12b from the back side, and the holding pieces 32 support the side portions 12a to 12d from the back side. The configuration. Therefore, for example, even if a force for pushing the wiring device into the box body 21 is applied to the wiring device attached to the box cover 10, the force is applied to the first and second fixing portions 24 and 29 and held. The piece 32 can also be received. Therefore, unlike the case where the holding piece 32 is not provided on the box body 21, the box cover 10 can be prevented from being bent and deformed into the box body 21. As a result, it is possible to prevent the occurrence of a problem such that the wiring device installed on the wall retreats into the wall.

  (2) The holding pieces 32 facing each other up and down support the upper side part 12a and the lower side part 12b on which the device mounting part 15 is formed from the back side. For this reason, when a force acts on the wiring device, the upper side portion 12a and the lower side portion 12b that are most affected by the force via the device mounting portion 15 are supported by the holding piece 32. As a result, it is possible to prevent a portion of the box cover 10 that is most likely to bend and deform by the force from being deformed.

  (3) The holding piece 32 is provided at a position that supports the center of the appliance mounting portion 15 adjacent to the upper side portion 12a and the lower side portion 12b. For this reason, even if a force acts on the wiring device attached to any one of the adjacent device attachment portions 15, the force can be received by the holding piece 32.

  (4) When the partition plate 30 is attached to the box body 21, the holding piece 32 also serves as the partition plate holding portion 31 that holds the edge of the holding piece 32. For this reason, compared with the case where the support part and the partition plate holding | maintenance part 31 are provided separately in the box main body 21, the structure of the box main body 21 can be simplified.

  (5) Recesses 14 into which the end portions 32a of the holding pieces 32 enter when the box cover 10 is fitted into the box body 21 are formed on the back surfaces of the side portions 12a to 12d of the box cover 10. And the inner surface of this recessed part 14 and the side surface of the edge part 32a mutually contact | abut, and the movement of the box cover 10 along the length direction of each side part 12a-12d can be controlled.

  (6) The first fixing portion 24 and the second fixing portion 29 are provided in the box body 21 so that the first contact surface 24a and the second contact surface 29a are retracted from the opening side to the bottom wall 22 side. . The retraction amounts of the first contact surface 24a and the second contact surface 29a are set so that the front surface of the box cover 10 fitted in the box body 21 and the opening end of the box body 21 are flush with each other. Yes. For this reason, when the wiring / pipe box device M is configured, the wiring / pipe box 20 does not increase in thickness, and the wiring / pipe box 20 can be used even where the wall thickness is thin. .

  (7) The holding piece 32 as a support part is formed in the inner surface of each side wall 23a-23d, and each holding piece 32 supports the center of each side part 12a-12d from a back surface side. Therefore, the left side portion 12c and the right side portion 12d can be prevented from being bent and deformed into the box body 21 even when a force toward the bottom wall 22 of the box body 21 is applied. As a result, bending deformation of the entire box cover 10 can be suppressed.

  (8) The base end portion of the first fixing portion 24 is formed thick to improve the strength of the first fixing portion 24. Further, when the box cover 10 is fitted into the box body 21 in the screw groove 15 b of the box cover 10, a wide portion 15 d is formed at a position corresponding to the first fixing portion 24. For this reason, even if the base end part of the 1st fixing | fixed part 24 is formed thickly, a base end part can be escaped to the wide part 15d. As a result, it is possible to prevent the box cover 10 from being unstable due to the proximal end portion of the first fixing portion 24.

In addition, you may change the said embodiment as follows.
The recess 14 may be deleted from the box cover 10 of the wiring / piping box device M. At this time, when the end portion 32 a comes into contact with the back surface of the box cover 10, the retraction amount of the end portion 32 a of the holding piece 32 is adjusted so that the front surface of the box cover 10 and the open end of the box body 21 are flush with each other. The

  -Although the holding piece 32 as a support part was set as the structure which also used the partition plate holding part 31, the support part which supports the box cover 10 in the inner surface of each side wall 23a-23d is provided separately from the holding piece 32, for example. Also good. Alternatively, in the wiring / piping box 20, the partition plate holding portion 31 is deleted from the box body 21, and support portions (for example, support protrusions or support pieces protruding from the inner surfaces of the side walls 23 a to 23 d) are provided on the box body 21. It is good also as a structure provided only.

  -In the box main body 21 to which the box cover 10 having only one pair of the fixture mounting portions 15 is attached, the support portions are arranged on the inner surfaces of the side walls 23a to 23d so that the end portions of the support portions abut against the back surface of the fixture mounting portion 15. May be provided. This support part may be comprised by the partition plate holding part 31 (holding piece 32), and may be provided separately from the partition plate holding part 31 (holding piece 32).

  The partition plate holding part 31 (holding piece 32) is provided only on the side walls (upper side wall 23a and lower side wall 23b) corresponding to the upper side part 12a and the lower side part 12b on which the device mounting part 15 is formed, A pair of holding pieces 32 may be provided on the box body 21. Conversely, the holding pieces 32 may be provided only on the side walls (the left side wall 23c and the right side wall 23d) corresponding to the left side part 12c and the right side part 12d where the instrument mounting part 15 is not formed.

-In the upper side wall 23a and the lower side wall 23b, you may provide a support part different from the partition plate holding | maintenance part 31 (holding piece 32) in the position which can support the true back of each instrument attachment part 15. FIG.
-You may provide the support part different from the partition plate holding | maintenance part 31 (holding piece 32) in positions other than the center of each side wall 23a-23d.

  As shown in FIG. 7, the wiring / piping box 20 in which the upper side wall 23 a and the lower side wall 23 b of the box body 21 are extended, the upper side part 12 a and the lower side part 12 b are extended, and the instrument mounting part 15 is You may comprise the box apparatus M for wiring and piping from the box cover 10 formed in three places. At this time, in the wiring / piping box 20, the partition plate holding portion 31 is provided at a position that is the center of the adjacent fixture mounting portions 15, and the holding piece 32 as a support portion is provided at the center of the adjacent fixture mounting portions 15. May be.

  When configured in this manner, the upper side portion 12a and the lower side portion 12b have a length (length in the length direction) along the circumferential direction of the box cover 10 that is extended from the embodiment. The side part 12a and the lower side part 12b are easily bent and deformed toward the bottom wall 22 side. However, the upper side part 12a and the lower side part 12b are supported from the back side by the first fixing part 24 and the second fixing part 29 on both sides along the length direction, and in other cases, two holding pieces 32 are provided. Is supported by. For this reason, the bending deformation of the upper side part 12a and the lower side part 12b is suppressed. Therefore, in addition to the first fixing portion 24 and the second fixing portion 29, the configuration in which the support portion (holding piece 32) is provided is such that the box cover 10 having a long length along the circumferential direction of the box cover 10 on the side portion is included. It is preferable to apply to the wiring / piping box 20 to be fitted.

The holding piece 32 may be formed only on the opening side of the box body 21 instead of extending from the bottom wall 22 to the opening side of the box body 21.
The wiring / piping box 20 may include a box body 21 formed in a box shape (frame shape) having openings on both front and rear surfaces.

  The box cover may be embodied as a blank cover attached to the box body 21 in order to close half of the opening of the wiring / piping box 20. This blank cover is formed in the shape of a square plate, and a through hole through which a screw B can be inserted is formed above and below the blank cover. When the blank cover is fitted in the wiring / pipe box 20 of the embodiment, the wiring / pipe box 20 is provided with four first fixing portions 24 so as to face each other vertically. Two pairs of first fixing portions 24 are provided. Then, when screws B are screwed into the pair of first fixing portions 24 from the through holes of the blank cover and the blank cover is fixed to the first fixing portion 24, half of the opening of the wiring / piping box 20 becomes the blank cover. It is blocked by. In this case, the blank cover is supported from the back side by the holding piece 32 (support part) of the left side wall 23c or the right side wall 23d. For example, even if a force for pushing into the box body 21 acts on the blank cover, the force is maintained. The piece 32 can be received. Therefore, it is possible to suppress the blank cover from being bent and deformed into the box body 21.

The wiring / piping box 20 may be formed in a round box shape, a hexagon box shape, or a pentagon box shape.
In the above modified example, as a support portion other than the partition plate holding portion 31 (holding piece 32), a protrusion protruding from the side wall inner surface on the opening side of the box main body 21 or a depth of the box main body 21 at the side wall inner surface You may embody in the support protrusion extended in the whole direction.

Next, the technical idea that can be grasped from the above embodiment and other examples will be described below.
(1) The base end portion on the side wall side of the fixed portion is formed thick, and the box cover is formed with a screw groove that allows a screw to be inserted into the fixed portion. 9. The wiring / pipe according to claim 7, wherein a wide portion into which the base end portion enters is formed at a position corresponding to the base end portion of the fixed portion in the screw groove when fitted into the screw. Box equipment.

The disassembled perspective view which shows the box apparatus for wiring and piping of embodiment. The front view which shows the box for wiring and piping of embodiment. The front view which shows the box cover of embodiment. The rear view which shows the box cover of embodiment. The front view which shows the box apparatus for wiring and piping of embodiment. FIG. 6 is a cross-sectional view taken along line 6-6 of FIG. 5 illustrating the wiring / pipe box device of the embodiment. The front view which shows the box apparatus for wiring and piping of another example.

Explanation of symbols

  M: Box device for wiring / piping, 10: Box cover, 14: Recess, 15 ... Instrument mounting portion, 20 ... Box for wiring / piping, 21 ... Box body, 23a ... Upper side wall, 23b ... Lower side wall, 23c ... Left side A wall, 23d ... right side wall, 24 ... a first fixing part as a fixing part, 29 ... a second fixing part as a fixing part, 30 ... a partition plate, 31 ... a partition plate holding part as a holding part, 32 ... as a supporting part Holding piece, 32a ... end.

Claims (8)

For a wiring / pipe having a box body formed in a box shape having an opening on at least one surface, and a fixing portion for fixing the box cover fitted on the opening side of the box body to the box body. In the box
A wiring / piping box, characterized in that a support portion is provided on the inner surface of the side wall of the box body so as to contact the back surface of the box cover and support the box cover from the back surface side. 2. The wiring / piping box according to claim 1, wherein at least a pair of the support portions provided at positions opposite to each other of the box body are provided on the support portion. 3. The wiring / piping box according to claim 1, wherein the box body is formed in a polygonal box shape, and the support portion is provided at the center of each side wall along at least a circumferential direction of the box body. The box cover is provided with a pair of fixture mounting portions for mounting a wiring fixture at opposite positions, and the support portion is provided at a position corresponding to the fixture mounting portion. The wiring / piping box according to any one of 3 above. The wiring / piping box according to claim 4, wherein a plurality of pairs of the fixture mounting portions are provided side by side, and the support portion is provided so as to be positioned between adjacent fixture mounting portions. The wiring / piping box according to any one of claims 1 to 5, wherein the support portion also serves as a holding portion for holding an edge of a partition plate that partitions the inside of the box body. A box cover,
Wiring / piping comprising a box body formed in a box shape having an opening on at least one surface, and a fixing portion for fixing the box cover fitted on the opening side of the box body to the box body. For the box and consists of
A wiring / piping box apparatus, wherein a support portion is provided on an inner surface of a side wall of the box body so as to contact the back surface of the box cover and support the box cover from the back surface side. 8. A concave portion into which an end portion of the support portion enters is formed on the back surface of the box cover, and movement of the box cover is restricted by contact between an inner surface of the concave portion and an end portion of the support portion. Wiring / piping box equipment as described in 1.

Images