JP5863376B2 - Wiring box - Google Patents

Description

  The present invention relates to a wiring box in which a conduit is connected to accommodate a wiring device or the like and protect a cable connected to the wiring device.

  Conventionally, for example, a wiring box is installed in a wall in order to install a wiring device or the like on a wall surface in a building. A cable is drawn into the wiring box, and the cable is protected by a conduit connected to a connection portion of the wiring box. In order to connect this conduit, insertion openings communicating with the connection portions are formed at the four corners of the wiring box.

  However, if each insertion opening is opened to the outside of the wiring box independently, for example, after the wiring box is fixed to the pillar, or in a place where an obstacle exists in the vicinity of the pillar. When installing, the insertion of the conduit into the insertion opening is hindered by the pillar and the obstacle, and the conduit cannot be connected to the connection portion near the pillar or the obstacle in the wiring box.

  Thus, for example, Patent Document 1 is an example of a wiring box in which a conduit can be connected to a pillar or an obstacle in the wiring box. In the wiring box 80 disclosed in Patent Document 1, as shown in FIG. 8, the connecting portion 82 of the conduit 90 is formed on the upper side wall 81 a and the lower side wall 81 b of the box body 81. The connecting portion 82 includes a connecting hole 83 having a long hole shape extending substantially in the length direction of the upper side wall 81a and the lower side wall 81b, and an engaging protrusion 84 formed on the inner surface of the connecting hole 83. ing. Further, insertion openings 85 are formed on both the upper and lower sides of the right side wall 81 c of the box body 81, and the insertion openings 85 communicate with the connection holes 83. That is, the connection portion 83 is formed with a connection hole 83 only at one end side in the length direction. Then, the conduit 90 is inserted into the insertion opening 85 of the wiring box 80, and the conduit 90 is slid along the connection hole 83 while the conduit 90 is engaged with the engagement protrusion 84, thereby connecting the conduit 90 to the connection portion 82. 90 is connected. Therefore, even if a pillar or an obstacle is on the left side of the wiring box 80, the conduit 90 is moved to the pillar or obstacle side of the wiring box 80 by sliding the conduit 90 toward the pillar or obstacle side. Can be connected.

JP 2005-051990 A

  By the way, in the wiring box 80 disclosed in Patent Document 1, the connection hole 83 is extended in the long side direction of the upper side wall 81a and the lower side wall 81b, thereby connecting a plurality of (two in this example) conduits 90 to one connection. The connection to the part 82 is made possible. However, if the opening width of the connecting portion 82 does not match the diameter of the conduit tube 90, such as when connecting the conduit tubes 90 of different diameters to one connecting portion 82, the connection state of each conduit tube 90 to the connecting portion 82 Will become unstable. Therefore, as a wiring box, it is preferable to connect one electric conduit 90 to one connecting portion 82 rather than connecting a plurality of electric conduits 90 to one connecting portion 82.

  The present invention has been made in view of the above-described conventional problems, and the object thereof is wiring capable of connecting a conduit to a connecting portion without hindering insertion of the conduit by a pillar or an obstacle. To provide a box.

In order to solve the above problem, the invention according to claim 1 is provided with a connecting portion that is formed in a polygonal box shape having an opening on one side by a peripheral wall and that can connect a conduit tube through which a cable is inserted. A step formed by a high step portion and a low step portion is formed on a peripheral wall of the box main body, the connection portion is formed in the high step portion, and the low step open to the section side, the connecting portion Ri name the insertion opening communicating is formed, the connecting portion is summarized in that, also formed in the low stage portion.

The invention according to claim 2 is provided with a box main body formed with a connection portion capable of connecting a conduit tube through which a cable is inserted while being formed in a polygonal box shape having an opening on one surface by a peripheral wall, A step formed by a high step portion and a low step portion is formed on the peripheral wall of the box body, and the connection portion is formed in the high step portion, and the connection portion is opened to the low step portion side. The gist of the present invention is that the insertion opening formed in the high step portion is formed at a position away from the corner portion of the box body .
The invention according to claim 3 is provided with a box main body formed with a connection portion capable of connecting a conduit tube through which a cable is inserted while being formed in a polygonal box shape having an opening on one surface by a peripheral wall, A step formed by a high step portion and a low step portion is formed on the peripheral wall of the box body, and the connection portion is formed in the high step portion, and the connection portion is opened to the low step portion side. An insertion opening that communicates with the box body is formed, and the insertion opening is formed on the side opposite to the formation position of the contact seat portion that contacts the structure to which the box body is fixed .

According to a fourth aspect of the present invention, in the wiring box according to the third aspect , a plurality of the high step portions are formed, and the insertion opening communicating with the high step portion has a structure in which the box body is fixed. The gist is that the opening is formed on the side opposite to the formation position of the abutting seat portion that abuts the object .

The gist of the invention according to claim 5 is that the wiring box according to claim 4 is formed such that the step becomes higher as the stepped portion is closer to the contact seat portion .
The invention according to claim 6 is provided with a box body formed with a connecting portion capable of connecting a conduit tube through which a cable is inserted, and formed into a polygonal box shape having an opening on one surface by a peripheral wall, A step formed by a high step portion and a low step portion is formed on the peripheral wall of the box body, and the connection portion is formed in the high step portion, and the connection portion is opened to the low step portion side. An insertion opening that communicates with the peripheral wall, and at least two of the high step portions are formed on the peripheral wall, and the low step portion is formed between the two high step portions. Even when the insertion openings formed respectively face each other and the conduit is connected to one of the two high-stage parts, the low-stage part leads to the other connection part. The gist of the present invention is that insertion of the conduit is allowed .

The invention according to claim 7 is the wiring box according to any one of claims 1 to 6 , wherein the box main body has a connection portion formed at a step adjacent to a corner portion of the box main body. The gist is that the insertion opening formed in the side wall is communicated.

The gist of the invention described in claim 8 is that, in the wiring box according to any one of claims 1 to 7 , two connection portions are formed in one high step portion .

  According to the present invention, it is possible to connect the conduit to the connection portion without hindering insertion of the conduit by a pillar or an obstacle.

The perspective view which shows the wiring box in 1st Embodiment. (A) is a top view which shows the wiring box in 1st Embodiment, (b), (c) is a side view which shows the wiring box in 1st Embodiment, (d) is the wiring box in 1st Embodiment. FIG. The perspective view which shows the wiring box in 2nd Embodiment. The perspective view which shows the wiring box in 3rd Embodiment. The perspective view which shows the wiring box in 4th Embodiment. The perspective view which shows the wiring box in 5th Embodiment. The perspective view which shows the wiring box as a modification. The perspective view which shows background art.

(First embodiment)
A first embodiment in which the present invention is embodied in a wiring box will be described below with reference to FIGS.

First, the conduit D connected to the wiring box will be described.
As shown in FIG. 1, the conduit D is a flexible tube formed of a synthetic resin material in the shape of a long cylinder, and has the same diameter as the convex portion Da that forms a ring shape with the same diameter protruding in the circumferential direction. The ring-shaped concave strip portion Db is continuously formed repeatedly to form an uneven shape. A cable (not shown) is inserted into the conduit D, and the cable is protected by the conduit D.

Next, the wiring box 10 will be described.
A wiring box 10 made of a synthetic resin material includes a box body 11 having a bottomed square box shape. The box body 11 is opposed to the left and right of the bottom wall 12, a bottom wall 12 having a rectangular plate shape, an upper side wall 12 a and a lower side wall 12 b erected from a pair of side edges facing the top and bottom of the bottom wall 12. The left side wall 12c and the right side wall 12d are provided upright from the coincident side edge. The bottom wall 12 and the side walls 12a to 12d are also peripheral walls. Further, in the pair of short side edges of the bottom wall 12, extended portions 12 e that are orthogonal to the upper side wall 12 a and the lower side wall 12 b are respectively located approximately halfway in the short side direction from the end adjacent to the left side wall 12 c. , Each extended. Accordingly, the left side wall 12c is formed longer than the right side wall 12d. Further, at the position up to substantially the left half in the long side direction of the upper side wall 12a, an extending portion that is orthogonal to the left side wall 12c and the upper side wall 12a and extends from the side wall 12a to a position parallel to the standing position of the right side wall 12d. 12f is extended. Similarly, at a position up to substantially the left half in the long side direction of the lower side wall 12b, an extension that is orthogonal to the left side wall 12c and the lower side wall 12b and extends from the side wall 12b to a position parallel to the standing position of the right side wall 12d. The part 12f is extended. Due to the extended portion 12f, the opening K of the box body 11 has a substantially rectangular shape. The opening K side is the front surface (front surface) of the box body 11 and the bottom wall 12 side is the rear surface (back surface) of the box body 11.

  As shown in FIG.1 and FIG.2 (b), the contact seat part 13 which has fixed thickness is protruded and formed in the outer surface of the left side wall 12c. In addition, fixing holes 14 penetrating the left wall 12c are formed in a plurality of locations (three locations in this example) so as to extend in the depth direction of the box body 11 in the left wall 12c. Are formed so that the fixing screws 15 can be inserted therethrough. The fixing screw 15 inserted through the fixing hole 14 is fixed to the column H as a structure, whereby the column H and the contact seat 13 come into contact with each other. As a result, the wiring box 10 is fixed to the column H.

  As shown in FIGS. 1 and 2 (d), the upper wall 12a and the lower wall 12b are formed outwardly of the box body 11 by utilizing the shape of the box body 11 provided with the extending portions 12e and 12f. Steps 16 projecting toward each other are provided. In the upper side wall 12a and the lower side wall 12b, a high step portion 16a is formed on the higher side of the step 16, and a lower step portion 16b provided at the same height as the standing position of the right side wall 12d on the lower side. Is formed. In addition, when comparing the two steps, the “high step” and the “low step” are the “high step”, while the relatively high one is the “low step”. " Thus, for example, when three steps are arranged in a staircase pattern, the center step is a “low step” compared to the highest step, but a “high step” compared to the lowest step. Part ". Further, the step 16 is formed so as to be vertically symmetric with respect to the center line L (see FIG. 1) that divides the length along the long side direction of the bottom wall 12 into approximately equal parts.

And the connection holes 17 and 18 as a connection part are formed in the high step part 16a and the low step part 16b, and the connection holes 17 and 18 are opened toward the right side wall 12d.
Further, as shown in FIGS. 1 and 2A and 2C, a first engagement protrusion 19 is formed along the inner periphery of each connection hole 17, 18. Each first engagement protrusion 19 extends linearly from the side of the insertion opening 22, 23 of the connection hole 17, 18 toward the back of the connection hole 17, 18, and further extends along the arc of the connection hole 17, 18. It is formed as follows. A second engagement protrusion 20 is formed along the inner periphery of each first engagement protrusion 19 via a connection member 21. Each second engagement protrusion 20 extends linearly from the side of the insertion opening 22, 23 of the connection hole 17, 18 toward the back of the connection hole 17, 18, and further along the arc of the first engagement protrusion 19. It is formed to extend.

  Further, the insertion opening 22 is formed in the high step portion 16 a so as to open toward the low step portion 16 b and to communicate with the connection hole 17. The insertion opening 22 guides the conduit D to the connection hole 17. On the other hand, in the low step portion 16b, insertion openings 23 are opened toward the outside of the right side wall 12d at the upper and lower ends of the right side wall 12d orthogonal to the low step portion 16b, that is, the right corner portion of the wiring box 10. And is formed to communicate with the connection hole 18. In addition, the opening width in the short side direction of the side walls 12a, 12b of the insertion openings 22, 23 is formed to be the same as or slightly larger than the outer diameter of the convex portion Da of the conduit D.

  Thus, by forming the insertion openings 22 and 23, the connection holes 17 and 18 are opened on the side opposite to the contact seat 13. Further, the length in the long side direction of the side walls 12a and 12b in the high step portion 16a and the length in the long side direction of the side walls 12a and 12b in the low step portion 16b are substantially the same length, and The opening areas of the insertion openings 22 and 23 are also substantially the same. Thereby, the stroke until the conduit D is connected to the connection holes 17 and 18 is substantially the same in the high step portion 16a and the low step portion 16b.

  Further, the opening widths of the connection holes 17 and 18 are formed slightly shorter than the outer diameter of the convex portion Da of the conduit D. And the 2nd engagement protrusion 20 is comprised so that removal is possible by removing the connection member 21 from the 1st engagement protrusion 19 with pliers. Thereby, according to the diameter of the electric conduit D inserted, the opening width of the connection holes 17 and 18 can be adjusted. That is, when the conduit D is inserted into the connection holes 17 and 18 from the insertion openings 22 and 23, the first engagement protrusions are formed on the concave portion Db of the conduit D according to the difference in diameter of the conduit D. The strip 19 or the second engaging projection 20 can be engaged.

  Next, the operation of the wiring box 10 having the above configuration will be described together with the installation method. In the following description, it is assumed that the two conduits D are connected to the connection holes 17 and 18, respectively. Moreover, in the following description, it demonstrates as what uses the electric wire pipe D of the diameter engaged with the 1st engagement protrusion 19.

  First, the outer surface of the contact seat 13 is brought into contact with the side surface of the column H so that the open end of the box body 11 is flush with the front surface of the column H. Then, the fixing screw 15 is inserted into the fixing hole 14 formed in the left side wall 12c, and the fixing screw 15 is fixed to the column H to fix the wiring box 10 to the column H. At this time, the insertion openings 22 and 23 of the connection holes 17 and 18 are opened toward the side opposite to the pillar H, respectively.

  And in order to connect the electric wire D from the connection hole 17 of the high step part 16a, the electric wire D is arrange | positioned in the vicinity of the insertion opening 22. FIG. When the conduit D is pushed into the connection hole 17 through the insertion opening 22 as it is, the conduit D is inserted into the insertion opening 22 from the right side of the wiring box 10 and the outer circumferential surface of the concave portion Db. The inner peripheral edge of the first engagement protrusion 19 is engaged. Then, the conduit D is connected to the connection hole 17 by sliding the conduit D along the connection hole 17 while engaging the conduit D with the first engagement protrusion 19.

  Next, the conduit D is disposed in the vicinity of the insertion opening 23 in the low step portion 16b. When the conduit D is pushed into the connection hole 18 through the insertion opening 23 as it is, the conduit D is inserted into the insertion opening 23 from the right side of the wiring box 10 and the outer circumferential surface of the concave portion Db. The inner peripheral edge of the first engagement protrusion 19 is engaged. Then, the conduit D is connected to the connection hole 18 by sliding the conduit D along the connection hole 18 while engaging the conduit D with the first engaging protrusion 19. Thereby, one conduit tube D can be connected to each of the connection holes 17 and 18 respectively.

  In addition, since the connection holes 17 and 18 which connect one conduit D are each formed in the high step part 16a and the low step part 16b, one conduit D moves toward the other conduit D side. Is prevented.

  Next, a cable (not shown) is drawn into the wiring box 10 while being inserted into the conduit D. Thereafter, as shown in FIG. 1, the wall material Wa is erected on both the front and rear sides of the pillar H to construct the wall W, and the wiring box 10 is installed in the wall W.

According to the above embodiment, the following effects can be obtained.
(1) Steps 16 projecting outward of the box body 11 are formed on the upper wall 12a and the lower wall 12b of the box body 11. And the connection hole 17 which connects the conduit D was formed in the high step part 16a which comprises the level | step difference 16, and it opened toward the low step part 16b side, and the insertion opening 22 connected to the connection hole 17 was formed. . Thereby, especially after fixing the wiring box 10 to the pillar H or when installing the wiring box 10 in a place where an obstacle exists in the vicinity of the pillar H, the insertion opening 22 is opposite to the pillar H or the obstacle. Since it opens toward the side, the conduit D can be connected to the connection hole 17. Therefore, it is not necessary to perform an operation of fixing the wiring box 10 to the column H in a state where the conduit D is connected to the wiring box 10 in advance. Incidentally, if the wiring box 10 is fixed to the column H in a state where the conduit D is connected to the wiring box 10, the visibility is lowered by the conduit D, and the wiring box 10 may not be fixed at an accurate position. .

  (2) The connection hole 18 is also formed in the low step portion 16b at a position lower than the high step portion 16a, and the insertion opening 23 is formed in the corner portion of the box body 11. By forming the connection hole 18 also in the low step portion 16b, the conduit D can be connected by effectively using the low step portion 16b of the side walls 12a and 12b.

  (3) The insertion opening 22 of the high step portion 16a is formed at a position away from the corner portions of the side walls 12a and 12b. By setting it as such a formation position, while being able to arrange | position the electric conduit D in the vicinity of the insertion opening 22 in the side walls 12a and 12b, the electric wire to the insertion opening 22 is obstructed by the pillar H and the obstacle near the pillar H. Since insertion of the tube D is not hindered, the conduit tube D can be connected to the connection hole 17.

  (4) The insertion openings 22 and 23 are provided on the side opposite to the formation position of the contact seat 13 in the high step portion 16a. Accordingly, the insertion of the conduit D into the insertion openings 22 and 23 is not hindered by the pillar H or an obstacle in the vicinity of the pillar H, so that the conduit D can be connected to any connection hole. .

  (5) As in the prior art (see FIG. 8), a connecting portion 82 extending from the right side wall 81c opposite to the abutting seat portion toward the abutting seat portion is formed, and a plurality of the connecting portions 82 are provided. It is assumed that the conduit 90 is formed so as to be connectable. In this case, the stroke of the conduit 90 until it moves to the position closest to the abutment seat portion increases, and it is conceivable that extra force is applied and the conduit 90 is deformed due to the large stroke. However, since the insertion opening 22 is formed in the high step portion 16a, the conduit D can be arranged in the vicinity of the insertion opening 22 on the side walls 12a and 12b. Thereby, even if it is a case where it is a case where it is going to connect the conduit D to the connection hole 17 nearest to a contact seat part, since a conduit can be arrange | positioned at the insertion opening 22 side, the conduit D is connected with a short stroke. be able to. As a result, since the stroke is short, the time during which an extra force is applied to the conduit D before reaching the connection hole 17 can also be shortened, leading to suppression of denaturation of the conduit D.

(Second Embodiment)
A second embodiment in which the present invention is embodied in a wiring box will be described below with reference to FIG. In the embodiment described below, the same components as those in the first embodiment described above are denoted by the same reference numerals, and the redundant description thereof is omitted or simplified.

  As shown in FIG. 3, in the wiring box 100 of the second embodiment, the high step portion 16a is formed on the outer surface of the side walls 12a, 12b on the left side wall 12c side, while the side walls 12a, 12b are on the right side wall 12d side. A high step portion 16c is formed on the outer surface of the.

  While the high step portions 16a and 16c have the same height, a low step portion 16d lower than the high step portions 16a and 16c is formed between the high step portions 16a and 16c, and the wiring box 100 has a concave shape. It has become. The length of the low step portion 16d along the long side direction of the side walls 12a and 12b is such that the conduit D is connected to one of the connection holes 17 and 24 formed in the high step portions 16a and 16c. The length is such that the insertion into the connection holes 17 and 24 to which the conduit D is not connected is allowed.

  A connection hole 17 is formed in the high step portion 16a, and an insertion opening 22 that opens toward the low step portion 16d and communicates with the connection hole 17 is formed. On the other hand, connection holes 18a and 24 are formed in the high step portion 16c, open to the low step portion 16d, open to the connection hole 24, and to the right side wall 12d. Insertion openings 23a communicating with the connection holes 18a are respectively formed.

  Further, in the side walls 12a and 12b, rib portions 26 are extended from the long side edges of the side walls 12a and 12b. The rib portions 26 protrude from each other toward the outside of the box body 11 and extend to substantially the same height as the high step portions 16a and 16c. The rib portion 26 prevents the low step portion 16d from being visible when the wiring box 100 is viewed from the front.

  As described above, the wiring box 100 according to the second embodiment includes the three connection holes 17, 18 a, and 24. Since the insertion opening 22 is formed on the opposite side of the contact seat 13 in the high step portion 16a closest to the contact seat 13, the connection hole is provided even after the wiring box 100 is attached to the column H. A conduit D can be connected to 17.

  The insertion openings 22 and 25 of the connection hole 17 and the connection hole 24 are opposed to each other, but a low step portion 16d is formed between the high step portions 16a and 16c. For this reason, even if the conduit D is connected to either of the connection holes 17 and 24, the conduit to the connection holes 17 and 24 to which the conduit D is not connected by the low step portion 16d. Insertion of D is allowed. Further, when the wiring box 100 is fixed to the column H using the abutment seat portion 13, the column H does not exist in the vicinity of the insertion opening 23 a communicating with the connection hole 18 a formed in the high step portion 16 c. Thereby, the electric wire D can be inserted in the connection holes 17, 18a, 24 without restriction of the insertion order.

According to the said 2nd Embodiment, in addition to the effect similar to (1)-(5) as described in 1st Embodiment, the following effects can be acquired.
(6) Two high-step portions 16a and 16c are provided on the side walls 12a and 12b, and a low-step portion 16d is provided therebetween to form a concave shape. For this reason, although the insertion openings 22 and 25 of the connection hole 17 and the connection hole 24 are opposed to each other, even if the conduit D is connected to one of the connection holes 17 and 24, The portion 16d allows the conduit D to be inserted into the connection holes 17 and 24 to which the conduit D is not connected. Further, when the wiring box 100 is fixed to the column H using the abutment seat portion 13, the column H does not exist in the vicinity of the insertion opening 23 a communicating with the connection hole 18 a formed in the high step portion 16 c. Thereby, since the electric wire D can be arrange | positioned in the vicinity of the insertion openings 22, 23a, 25, the electric wire D can be inserted in the connection holes 17, 18a, 24 without the restriction | limiting of an insertion order.

  (7) By forming the connection hole 24 at a position away from the corners of the side walls 12a and 12b, the insertion opening 25 is also formed at a position away from the corners of the side walls 12a and 12b. And since the low step part 16d was formed, while the electric conduit D can be arrange | positioned in the vicinity of the insertion opening 25, the obstruction near the pillar H and the pillar H of the electric conduit D to the insertion opening 25 is possible. Since the insertion is not hindered, the conduit D can be connected to the connection hole 24.

  (8) The rib portions 26 extending from the long side edge portions of the side walls 12a and 12b toward the outside of the box body 11 and extending to substantially the same height as the high step portions 16a and 16c are provided. Even when the wiring box 100 is placed directly on the ground, the ribs 26 can improve the stability of the wiring box 100. Further, the rib portion 26 can increase the strength of the wiring box 100 itself. Furthermore, since the low step portion 16d is not visible from the front surface by the rib portion 26, the design is improved.

(Third embodiment)
Next, a third embodiment in which the present invention is embodied in a wiring box will be described with reference to FIG.
As shown in FIG. 4, in the wiring box 110 according to the third embodiment, one high step portion 16e is formed in the approximate center of the outer surface of the side walls 12a and 12b. Further, in the side walls 12a and 12b, low step portions 16b and 16f are formed on both sides of the high step portion 16e, respectively. And in the high step part 16e, the two connection holes 27 and 28 are formed. The connection hole 27 has a shape that opens toward the abutment seat portion 13, while the connection hole 28 has a shape that opens toward the right side wall 12d. The high step portion 16e is formed with insertion openings 29 and 30 respectively communicating with the connection holes 27 and 28 and opening toward both the low step portions 16b and 16d.

  On the other hand, in the wiring box 110, connection holes 18 and 31 are formed in the low step portions 16b and 16f, respectively, and insertion openings 23 are formed at both upper and lower ends of the right side wall 12d orthogonal to the low step portion 16b. . On the other hand, insertion openings 32 are formed at both upper and lower ends of the left side wall 12c orthogonal to the low step portion 16f.

  As described above, the wiring box 110 according to the third embodiment includes the four connection holes 18, 27, 28, and 31. And since the insertion openings 29 and 30 of the connection holes 27 and 28 are formed so as to face each other, the remaining connection holes can be connected regardless of which of the connection holes 27 and 28 is connected first. 27 and 28 can be easily connected to the conduit D.

According to the said 3rd Embodiment, in addition to the effect similar to (1)-(7) as described in the said embodiment, the following effects can be acquired.
(9) Two connection holes 27, 28 are formed in one high step portion 16e, and insertion openings 29, 30 that open toward the low step portions 16b, 16f and communicate with the connection holes 27, 28 are formed. did. By adopting such a configuration, since the conduit D is connected to one of the connection holes 27 and 28, the phenomenon that the conduit D cannot be connected to the remaining connection holes 27 and 28 does not occur. The connection order of the conduit D is not selected in the connection holes 27 and 28.

(Fourth embodiment)
Next, a fourth embodiment in which the present invention is embodied in a wiring box will be described with reference to FIG.
As shown in FIG. 5, in the wiring box 120 of the fourth embodiment, the shape of the box body 11 provided with the extending portions 12e and 12f is used to form the high step portion 16g on the upper side wall 12a and the lower side wall 12b. And a low step portion 16h. The high step portion 16g and the low step portion 16h are respectively formed with connection holes 33 and 34 to which two conduits D can be connected in one connection hole. An insertion opening 35 communicating with the connection hole 33 is formed on the lower step portion 16h side of the higher step portion 16g. On the other hand, in the low step portion 16h, insertion openings 36 communicating with the connection holes 34 are formed at both upper and lower ends of the right side wall 12d orthogonal to the low step portion 16h.

  By adopting such a configuration, even after the wiring box 120 is fixed to the column H, the conduit D is connected to the connection hole 33 positioned on the contact seat portion 13 side with respect to the connection hole 34. It becomes possible to do.

According to the said 4th Embodiment, the effect similar to (1)-(5) as described in the said embodiment can be acquired.
(Fifth embodiment)
Next, a fifth embodiment in which the present invention is embodied in a wiring box will be described with reference to FIG.

  As shown in FIG. 6, in the wiring box 130 of the fifth embodiment, the shape of the box body 11 provided with the extending portions 12 e and 12 f is used to form the first high step on the upper wall 12 a and the lower wall 12 b. A portion 16i, a second high step portion 16j, a third high step portion 16k, and a low step portion 16l are formed. More specifically, the third high step portion 16k connected to the low step portion 16l protrudes outward from the low step portion 16l. In this case, in the third high step portion 16k and the low step portion 16l, the third high step portion 16k corresponds to a “high step portion” higher than the low step portion 16l, and the low step portion 16l has the third high step portion 16l. This corresponds to a “low step portion” lower than the step portion 16k. Further, the second high step portion 16j connected to the third high step portion 16k protrudes outward from the third high step portion 16k. In this case, in the third high step portion 16k and the second high step portion 16j, the second high step portion 16j corresponds to a “high step portion” higher than the third high step portion 16k, and the third high step portion 16k. 16k corresponds to a “low step portion” lower than the second high step portion 16j. Further, the first high step portion 16i connected to the second high step portion 16j is protruded outward from the second high step portion 16j. In this case, in the second high step portion 16j and the first high step portion 16i, the first high step portion 16i corresponds to a “high step portion” higher than the second high step portion 16j, and the second high step portion 16j corresponds to a “low step portion” lower than the first high step portion 16i. That is, the wiring box 130 is formed such that the higher the stepped portion closer to the contact seat portion 13, the higher the step.

  Further, connection holes 37, 38, 39, and 40 that open toward the right side wall 12d are formed in the first to third high step portions 16i to 16k and the low step portion 16l, respectively. The first to third high step portions 16i to 16k are respectively formed with insertion openings 41, 42, and 43 that open toward the lower step portion and communicate with the connection holes 37 to 39, respectively. Yes. On the other hand, in the low step portion 16l, insertion openings 44 communicating with the connection holes 40 are formed at both upper and lower ends of the right side wall 12d orthogonal to the low step portion 16l. That is, in the wiring box 120, a plurality of connection holes 37 to 40 are formed in one side wall 12a, 12b.

  Since all the insertion openings 41 to 44 are formed on the side opposite to the position where the contact seat 13 is formed, even after the wiring box 130 is fixed to the column H, the contact seat 13 is the most. The conduit D can be connected to the connection hole 37 located on the side. Incidentally, when connecting the conduit D to all the connection holes 37 to 40, it is desirable to connect the conduit D in the order of the connection hole 37 → the connection hole 38 → the connection hole 39 → the connection hole 40.

According to the said 5th Embodiment, in addition to the effect similar to (1)-(5), (7) as described in the said embodiment, the following effects can be acquired.
(10) In one side wall 12a, 12b, a plurality of step portions 16i to 16l are formed, and the insertion openings 41 to 44 communicating with the connection holes 37 to 40 formed in the respective step portions 16i to 16l are brought into contact with each other. It formed so that it might open on the opposite side to the formation position of the seat part 13. FIG. Thereby, even after the wiring box 130 is fixed to the column H, the conduit D can be connected to the connection hole 37 positioned closest to the abutment seat portion 13.

  (11) The higher step 16i closer to the abutment seat 13 is formed to have a higher step. Thereby, the conduit D can be connected in order from the connection hole 37 close to the contact seat 13 without the step itself becoming an obstacle.

In addition, you may change the said embodiment as follows.
-In each embodiment, the formation position of the level | step difference in the upper side wall 12a and the lower side wall 12b does not need to be vertically symmetrical.

-In each embodiment, you may form a connection hole only in either the upper wall 12a or the lower wall 12b.
In each embodiment, the connection hole may be formed in any peripheral wall according to the position of the wiring box that is in contact with the column H. For example, when the left wall 12c of the wiring box is brought into contact with the pillar H, a connection hole may be formed in the right wall 12d. Further, as shown in FIG. 7, the high step portions 16m and 16n are formed at two locations on the outer surface of the bottom wall 12, and the connection holes 45, 46, 47, and 48 may be formed, respectively. At this time, the low step portion 16o is formed between the high step portions 16m and 16n.

-Each embodiment may be a wiring box of any shape as long as it is polygonal. Moreover, it is good also as a polygonal frame-shaped wiring box.
In each embodiment, the connection hole is formed only at the high step portion, and the connection hole may not be formed at the low step portion. In addition, although the connection holes are formed in the high step portion and the low step portion, the opening direction of the connection hole may be opposite to the contact seat portion 13 only in the high step portion.

  -In each embodiment, after connecting the conduit D to the connection hole, the wiring box is fixed to the column H. After fixing the wiring box to the column H, the conduit D is inserted into the insertion opening, A conduit D may be connected.

Next, technical ideas that can be grasped from the above-described embodiment and other examples are added below.
(A) A box body formed with a side wall formed with a connection portion capable of connecting a conduit tube through which a cable is inserted is formed on the side wall of the box body. A step formed by one high step portion and one low step portion is formed, and a side wall adjacent to the high step portion has a contact seat portion that contacts a structure to which the box body is fixed. The connection portion is formed in the high step portion, and an insertion opening that opens toward the low step portion and communicates with the connection portion is formed on the high step portion. The connection portion is formed in the lower step portion formed at a position away from the seat portion, and the connection portion is formed and opens toward the side wall adjacent to the contact step portion and adjacent to the lower step portion. The insertion opening communicating with the connection portion is formed on the side wall. Wiring box made formed in the part.

  (B) A box body formed with a side wall formed with a side wall having an opening on one side and connected to a conduit through which a cable is inserted is formed on the side wall of the box body. A step formed by a step portion and a low step portion is formed, and the low step portion is formed at the center of the side wall, while the high step portion is opposed to the low step portion therebetween. In this way, the side wall is formed in a concave shape by being formed at each corner of the box body, and the side wall adjacent to one of the high steps is in contact with the structure to which the box body is fixed. A wiring box in which a seat portion is formed, and each of the high step portions is formed with the connection portion, and is formed with an insertion opening that opens to the low step portion side and communicates with each connection portion. .

  (C) a box body formed in a polygonal box shape having an opening on one side by a side wall and formed with a connection part capable of connecting a conduit tube through which a cable is inserted; A step composed of a step portion and a low step portion is formed, and the high step portion is formed in the center of the side wall, while the low step portion is opposed to the high step portion therebetween. In this way, the side wall has a convex shape by being formed at each corner of the box body, and two connection portions are formed at the high step portion and open to the opposite low step portion side. In addition, an insertion opening that communicates with each connection portion is formed, respectively, while an insertion opening that is formed with the connection portion and communicates with each connection portion is formed in the low step portion, and is adjacent to each low step portion. Wiring boxes formed at the corners of the Nest.

  (D) A box body formed with a connection portion capable of connecting a plurality of electric conduits through which a cable is inserted in one connection portion while being formed into a polygonal box shape having an opening on one side by a side wall; A step formed by one high step portion and one low step portion is formed on the side wall of the box main body, and a structure on which the box main body is fixed to the side wall adjacent to the high step portion; An abutment seat portion that abuts is formed, and the connection portion is formed at the high step portion, and an insertion opening that opens toward the low step portion and communicates with the connection portion is formed. On the other hand, the connection portion is formed at the lower step portion formed at a position away from the contact seat portion, and is opposed to the contact seat portion and adjacent to the lower step portion. Open toward the side wall and communicate with the connection That the insertion opening is formed by forming the corner portion of the side wall wiring box.

  (E) a box body formed in a polygonal box shape having an opening on one side by a side wall and formed with a connection part capable of connecting a conduit tube through which a cable is inserted, and relative to the side wall of the box body Steps formed in a staircase shape are formed by a plurality of high steps and a plurality of relatively low steps, and are adjacent to the highest step formed among all steps. The side wall is formed with an abutment seat that abuts against the structure to which the box body is fixed, and each relatively high stepped portion is formed with the connecting portion and the stepped portion. Lower than the upper step, and open toward the lower step side adjacent to the higher step portion, and an insertion opening communicating with each connection portion is formed, while being farthest from the abutment seat portion. And the most of all steps In the formed low step portion, the connection portion is formed, opens toward the side of the side wall facing the contact seat portion and adjacent to the low step portion, and communicates with the connection portion. A wiring box in which an insertion opening is formed at a corner of the side wall.

  D: Conduit, H: Column as structure, 10: Wiring box, 11: Box body, 12: Bottom wall as peripheral wall, 12a to 12d: Side wall as peripheral wall, 13: Contact seat, 16: Step , 16a: High step portion, 16b: Low step portion, 17, 18 ... Connection holes as connection portions, 22, 23 ... Insertion openings.

Claims (8)

It is formed in a polygonal box shape having an opening on one side by a peripheral wall, and includes a box main body formed with a connection portion capable of connecting a conduit tube through which a cable is inserted,
A step composed of a high step portion and a low step portion is formed on the peripheral wall of the box body, and the connection portion is formed in the high step portion and opens to the low step portion side, and the connection Ri Na and insertion opening communicating are formed on parts,
The connection portion is a wiring box that is also formed in the low step portion . It is formed in a polygonal box shape having an opening on one side by a peripheral wall, and includes a box main body formed with a connection portion capable of connecting a conduit tube through which a cable is inserted,
A step composed of a high step portion and a low step portion is formed on the peripheral wall of the box body, and the connection portion is formed in the high step portion and opens to the low step portion side, and the connection An insertion opening communicating with the part is formed,
The high stage portion and the insertion opening formed in the said box body being of formed at a position apart from the corner by name Ru wiring box. It is formed in a polygonal box shape having an opening on one side by a peripheral wall, and includes a box main body formed with a connection portion capable of connecting a conduit tube through which a cable is inserted,
A step composed of a high step portion and a low step portion is formed on the peripheral wall of the box body, and the connection portion is formed in the high step portion and opens to the low step portion side, and the connection An insertion opening communicating with the part is formed,
The insertion opening structure and the Ru wiring box name and opens on the opposite side of the contact with the forming position of the abutment seat for the box body is fixed. A plurality of the high steps are formed,
4. The wiring box according to claim 3 , wherein the insertion opening communicating with the high step portion is opened on a side opposite to a formation position of a contact seat portion that contacts a structure to which the box body is fixed. The wiring box according to claim 4 , wherein a higher step portion closer to the contact seat portion is formed to have a higher step. It is formed in a polygonal box shape having an opening on one side by a peripheral wall, and includes a box main body formed with a connection portion capable of connecting a conduit tube through which a cable is inserted,
  A step composed of a high step portion and a low step portion is formed on the peripheral wall of the box body, and the connection portion is formed in the high step portion and opens to the low step portion side, and the connection An insertion opening communicating with the part is formed,
At least two of the high step portions are formed on the peripheral wall, the low step portion is formed between the two high step portions, and the insertion openings respectively formed in the two high step portions are opposed to each other. Even when the conduit is connected to one of the two high-stage parts, the low-stage wiring allows the conduit to be inserted into the other connection part. box. The insertion part formed in the side wall of the said box main body is connected to the connection part currently formed in the step part adjacent to the corner | angular part of the said box main body, It is any one of Claims 1-6. Wiring box as described in. The wiring box according to any one of claims 1 to 7 , wherein two connection portions are formed in one high step portion .

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