JP2011176929A - Bus duct support structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a bus duct support structure which allows a bus duct to be built even in small installation space and can support it. <P>SOLUTION: The bus duct support structure supports bus ducts 100 in which insulator-covered conductors 600 are covered with housings 30 and which are arranged side by side roughly vertically in a structure, by supporters, such as floor supporters 400, which are installed on both sides of each bus duct 100, being fixed on a floor 300. A part of the housing 30 on both sides in the thickness direction of the bus duct 100 is contracted to constitute a reduced part 102, and the supporter is attached to the reduced part 102 of the housing 30. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a bus duct support structure that supports a bus duct that constitutes an electric trunk line in a building structure such as an office building, a factory, and a substation facility.

  Conventionally, a bus duct, which is an electric trunk line, is installed in a structure as means for supplying power to the structure. The bus duct is configured for each route of one system, for example, a three-layer AC conductor is provided inside, and a housing for protecting these is provided outside thereof. When such a bus duct is installed, for example, the floor of the structure is penetrated and provided so as to extend in the vertical direction, and is supported by a support device provided on the floor.

  For example, FIG. 9 of Patent Document 1 discloses a configuration in which support devices are provided on both sides of the bus duct in the thickness direction, and a bus duct extending in the vertical direction is supported by a spring of the support device. It is possible to flexibly absorb the expansion and contraction of the bus duct caused by the above with a spring.

JP 2008-125228 A

  By the way, when bus ducts are juxtaposed in a plurality of systems in the vertical direction, they are often juxtaposed so that the surfaces in the thickness direction (short side direction) of the bus ducts face each other. In this case, in the configuration in which the support devices are provided on both sides in the thickness direction of the bus duct as in Patent Document 1, two sets of support devices are arranged between the bus ducts, and the bus ducts are arranged side by side to ensure the arrangement space. There is a need to lay the gap wide. Even when the bus duct is installed in a single system, when installing the bus duct adjacent to the wall of the structure, etc., it is necessary to secure a space for arranging the support device. It becomes necessary to spread and lay. Therefore, there is a demand for a configuration that can lay and support a bus duct even in a small installation space.

  The present invention is proposed in order to solve the above problems, and an object of the present invention is to provide a bus duct support structure capable of laying and supporting a bus duct even in a small installation space.

The bus duct support structure according to the present invention is a bus duct support structure in which a conductor is covered with a housing and is supported by a support device, and the bus duct support structure supports at least one of the thickness and width of the bus duct. And the support device is attached to a reduced portion of the housing.
According to this configuration, the support device can be arranged close to the bus duct side by the reduced size of the housing, and the installation space of the bus duct is reduced by that amount regardless of the vertical laying type bus duct and the horizontal laying type bus duct. It becomes possible to do. Therefore, the bus duct and the support device can be provided in a small installation space, and the bus duct can be installed and supported in the small installation space.

The bus duct support structure of the present invention is characterized in that a plurality of bus ducts are arranged in parallel in the structure, and the reduced portion is formed in at least one bus duct of the plurality of bus ducts.
According to this configuration, it is possible to reduce the laying intervals of the plurality of bus ducts, and to secure a work space when laying the plurality of bus ducts.

In the bus duct support structure of the present invention, the bus duct in which the reduced portion is formed is laid substantially perpendicular to the structure, and the support device supports the bus duct in which the reduced portion is formed in a substantially vertical state. It is characterized by.
According to this configuration, it is possible to lay and support the vertical laying type bus duct in a small installation space while ensuring good vertical support of the bus duct.

The bus duct support structure according to the present invention is characterized in that a reinforcing portion is formed in the housing, and a reduced portion of the housing is formed by removing or removing the reinforcing portion.
According to this configuration, the strength of the bus duct can be secured by the reinforcing portion, and the reduced portion of the housing can be easily formed by shortening or removing the reinforcing portion.

The bus duct support structure of the present invention is characterized in that at least a part of the periphery of the reduced portion of the housing is provided with another reinforcing portion different from the reinforcing portion while maintaining the reduced state of the reduced portion. .
According to this configuration, the strength reduction due to the reduction of the reinforcing portion can be compensated by the other reinforcing portions.

The bus duct support structure of the present invention includes a reinforcing portion provided in a normal portion of the housing and a reinforcing portion provided in a reduced portion of the housing, and the reinforcing portion of the normal portion is outward in the thickness direction of the bus duct. The reinforcing portion of the reduced portion is extended inward in the thickness direction of the bus duct.
According to this configuration, it is possible to configure a reduced portion with a smaller thickness while ensuring the strength of the reduced portion, and it is possible to further reduce the installation space.

The bus duct support structure of the present invention includes a reinforcing portion provided in a normal portion of the housing and a reinforcing portion provided in a reduced portion of the housing, and the reinforcing portion of the reduced portion cuts out the reinforcing portion of the normal portion. It is characterized by being formed.
According to this configuration, the strength of the reduced portion can be ensured, and the reinforcing portion of the normal portion only needs to be cut out only for the portion to which the support device is attached. There is no need, and the strength reduction of the bus duct 110 can be prevented accordingly.

The bus duct support structure of the present invention includes a reinforcing portion provided in a normal portion of the housing and a reinforcing portion provided in a reduced portion of the housing, and the reinforcing portion of the normal portion is outward in the thickness direction of the bus duct. The reinforcing portion of the reduced portion extends outward in the thickness direction of the bus duct, and the outward protruding amount is shorter than the reinforcing portion of the normal portion.
According to this configuration, it is possible to suppress a decrease in strength due to the formation of the reduced portion as much as possible, and the bus duct can be kept highly rigid while realizing a reduction in installation space.

The bus duct support structure of the present invention includes a reinforcing portion provided in a normal portion of the housing and a reinforcing portion provided in a reduced portion of the housing, and the reinforcing portion of the normal portion is outward in the thickness direction of the bus duct. The reinforcing portion of the reduced portion is extended outward in the width direction of the bus duct.
According to this configuration, it is possible to effectively utilize and reinforce the side that does not have the support device, and it is possible to realize a reduction in installation space with a high effect without reducing the overall rigidity of the bus duct.

  According to the bus duct support structure of the present invention, the support device can be arranged close to the bus duct side by the amount of the reduced housing, and the installation space for the bus duct is reduced regardless of the vertical laying type bus duct and the horizontal laying type bus duct. It is possible to reduce the size accordingly. Therefore, the bus duct and the support device can be provided in a small installation space, and the bus duct can be installed and supported in the small installation space.

(A) is a front view of the bus duct support structure of 1st Embodiment, (b) is the side view. (A) is a side view of the bus duct in the first embodiment, (b) is a front view thereof, (c) is a cross-sectional view along the line AA in FIG. (B), and (d) is a cross-sectional view along the line B- in FIG. B sectional drawing. (A) is an enlarged front view of the bus duct support structure of 1st Embodiment, (b) is the enlarged side view. (A) is a side view of a bus duct in the second embodiment, (b) is a front view thereof, (c) is a cross-sectional view taken along line AA in FIG. (B), and (d) is a cross-sectional view taken along line B- in FIG. B sectional drawing. (A) is an enlarged front view of the bus duct support structure of 2nd Embodiment, (b) is the enlarged side view. (A) is a side view of a bus duct according to the third embodiment, (b) is a front view thereof, (c) is a cross-sectional view taken along line AA in FIG. (B), and (d) is a cross-sectional view along line B- in FIG. B sectional drawing. (A) is an enlarged front view of the bus duct support structure of 3rd Embodiment, (b) is the enlarged side view. (A) is a side view of a bus duct in the fourth embodiment, (b) is a front view thereof, (c) is a cross-sectional view taken along line AA in FIG. (B), and (d) is a cross-sectional view taken along line B- in FIG. B sectional drawing. (A) is an enlarged front view of the bus duct support structure of 4th Embodiment, (b) is the enlarged side view. (A) is an enlarged front view of the modification of the bus duct support structure of 4th Embodiment, (b) is the enlarged side view. (A) is a top view of the bus duct support structure of 5th Embodiment, (b) is AA sectional drawing of the figure (a), (c) is BB sectional drawing of the figure (a). (A) is the front view of the bus duct in 6th Embodiment, (b) is the top view, (c) is AA sectional drawing of the figure (b), (d) is B- of the figure (b). B sectional drawing. The front view of the bus duct support structure of 6th Embodiment. (A) is an enlarged front view of the bus duct support structure of 7th Embodiment, (b) is the enlarged side view, (c) is an enlarged side view which shows only the bus duct which has the reduced part. (A) is the enlarged front view of the bus duct support structure of a modification, (b) is the enlarged side view.

[Bus Duct Support Structure of First Embodiment]
A bus duct support structure according to a first embodiment of the present invention will be described. 1 and 3 are views of the bus duct support structure according to the first embodiment, and FIG. 2 is a view of the bus duct according to the first embodiment.

  As shown in FIGS. 1 and 3, the bus duct support structure of the first embodiment penetrates through holes (not shown) in floors 300-1 and 300-2 on each floor of an office building, a factory, a substation, or the like. In addition, two systems of bus ducts 100-1 and 100-2, which are a plurality of systems, are laid and arranged substantially vertically, and a floor support device 400 that is a support device installed on the upper surface of each floor 300-1 and 300-2. Thus, the bus ducts 100-1 and 100-2 are supported in a substantially vertical state.

  As an example, the bus ducts 100-1 and 100-2 of each system have the same electric capacity, and the width and thickness of the bus ducts of each system are the same, and the surfaces in the thickness direction are substantially parallel with a predetermined interval therebetween. It is arranged to face each other. In addition, each of the bus ducts 100-1 and 100-2 of each system accommodates a linear insulation coated conductor 600, which will be described later, and is insulated at the end for each system by the connection parts 200-1 and 200-2. The insulation-coated conductor 600 and the housing 30 exposed from the coating are connected to each other to form an electric trunk line that continues from the lower floor to the upper floor of an office building or the like. In the example of FIG. 1, the connection part 200 is provided in one place on one floor.

  The floor support device 400 is disposed on both sides in the thickness direction of each of the bus ducts 100-1 and 100-2, and the bus duct 100 of each system is supported by the floor support devices 400 and 400 on both sides in the thickness direction. The bus ducts 100-1 and 100-2 are installed such that a reduced portion 102, which will be described later, is positioned near the upper surface of the floors 300-1 and 300-2, and floor support is provided on both sides in the thickness direction of the reduced portions 102. Devices 400 and 400 are arranged. Floor support devices 400 and 400 as support devices are attached to the reduced portion 102 so as to sandwich the bus duct 100 therebetween.

  As shown in FIG. 2, the detailed structure of the bus duct 100 includes an insulating coated conductor 600, which is an insulating coated conductor composed of a plurality of phases (three phases in the illustrated example), and is laminated in the thickness direction. The spacers 40 having a square cross section are disposed on both sides in the width direction. The housings 30 and 30 are disposed on both outer sides of the insulating coated conductor 600 and the spacers 40 and 40 in the thickness direction of the insulating coated conductor 600 to cover the insulated coated conductor 600. The housings 30 and 30 include bolts 41 and nuts. The insulation-coated conductor 600 and the spacers 40 and 40, which are fastened and fixed by 42 and interposed between the housings 30 and 30, are sandwiched between the housings 30 and 30. The arrangement positions and installation intervals of the bolts 41 and nuts 42 can be changed as appropriate.

  The housing 30 includes a first reinforcing portion 32 that is bent and extended outward at approximately 90 degrees from both ends of the flat base surface 31 in the normal portion 101 on both ends in the longitudinal direction of the bus duct 100, and a first reinforcing portion 32. The second reinforcing portion 33 that is bent and extended approximately 90 degrees from the outer end edge of the reinforcing portion 32 is provided, and the strength of the bus duct 100 is maintained. In the housing 30, an intermediate portion sandwiched between the normal portions 101 of the bus duct 100 is a reduced portion 102 formed by reducing the length in the thickness direction of the bus duct 100 from the normal portion 101. The housing 30 in the reduced portion 102 has a third reinforcing portion 34 that is bent and extended inward by approximately 90 degrees from both end edges of the flat base surface 31 and holds the strength of the bus duct 100. The insulating covering conductor 600 and the spacer 40 are covered in the width direction of the insulating covering conductor 600.

  In other words, the bus duct 100 has a normal portion 101 formed in a substantially letter-shaped cross-sectional view by the first reinforcing portion 32 and the second reinforcing portion 33, and a thickness of the bus duct 100 that is substantially elongated rectangular in cross-sectional view and is larger than the normal portion 101. The reduced portion 102 whose length in the direction is reduced, in other words, the first reinforcing portion 32 and the second reinforcing portion 33 are removed, and a third reinforcing portion 34, which is another different reinforcing portion, is formed instead. The reduced portion 102 is formed. In addition to the configuration of the third reinforcing portion 34, the other reinforcing portion is provided at least at a part of the periphery of the reduced portion 102 of the housing 30, and the reduced state of the reduced portion 102 can be substantially maintained. Any configuration that can maintain a state in which the length in the thickness direction of the bus duct 100 is shorter than between the ends of the reinforcing portions 32 and 32 is appropriate, and any configuration that does not erase the reduced portion 102 of the housing 30 may be used.

  In addition, although the housing 30 of the bus duct 100 in the above example has been described with respect to the case where the first reinforcing portion 32, the second reinforcing portion 33, and the third reinforcing portion 34 are integrally formed on the same base surface 31, the bus duct 100 is described. As long as the housing 30 is partly reduced, it is appropriate. For example, a separate housing 30 may be provided for the normal portion 101 and the reduced portion 102 of the bus duct 100.

  Further, as shown in FIGS. 1 and 3, the floor support device 400 includes a bus duct side mounting member 410 attached to the bus duct 100 side and a floor side mounting member 420 attached to the floor 300 side. A spring member 500 is provided between the floor-side mounting member 420 and each bus duct 100 is flexibly supported by the floor 300 via the spring member 500, and the expansion and contraction in the vertical direction, which is the length direction of the bus duct 100, is allowed. ing.

  The bus duct side mounting member 410 is disposed substantially parallel to the floor 300 and has a substantially rectangular mounting base 411 to which the spring member 500 is mounted. The bus duct side mounting member 410 bends approximately 90 degrees from the side end of the mounting base 411 and extends upward. The sandwiching piece 412 extending along the base surface 31 of the housing 30 that is the side surface in the thickness direction, and the housing 30 that is the side surface in the width direction of the bus duct 100 bent by approximately 90 degrees from both side ends of the sandwiching piece 412. An extending piece 413 extending to the vicinity of the end of the third reinforcing part 34 along the third reinforcing part 34, and a fixing extending outward from the end edge of the extending piece 413 substantially parallel to the sandwiching piece 412 And a piece 414.

  A bolt hole (not shown) is formed in the fixing piece 414 of the bus duct side mounting member 410, and the fixing pieces 414 and 414 in close contact with each other between the pair of bus duct side mounting members 410 disposed between the bus duct 100 are bolts 415 and nuts. The bus duct side attachment member 410 is attached to the reduced portion 102 of the bus duct 100 by being screwed with the screw 416. At this time, the holding piece 412 of the bus duct side mounting member 410 strongly presses the base surface 31 of the housing 30 which is the side surface in the thickness direction of the bus duct 100, and the bus duct 100 is caused by friction between the holding piece 412 and the base surface 31. Support the weight of.

  The floor-side mounting members 420 are disposed on both sides of the bus duct 100 in the width direction, and are disposed on both sides of the bus duct in the thickness direction of the first channel member 421 having a substantially U-shaped cross-sectional view fixed to the floor 300 with screws or the like. The second channel member 422 is mounted on the upper side of the first channel member 421 and is fixed by bolting or the like, and is substantially U-shaped in cross section. The spring member 500 is fixed to the upper surface of the second channel member 422. Attached. The mounting base 411 is spring-supported by the fixed spring member 500, and the bus duct 100 to which the bus duct-side mounting member 410 is mounted is spring-supported.

  In the above example, the normal portion 101 is formed on both ends of the bus duct 100, and the intermediate portion sandwiched between the normal portions 101 is the reduced portion 102. For example, the reduced portion 102 is provided on both ends of the bus duct 100. A configuration in which the intermediate portion sandwiched between the reduced portions 102 is the normal portion 101, the number of the normal portions 101 and the reduced portions 102 formed is arbitrarily increased, and is formed at an appropriate position alternately, etc. As long as a portion in which the housing 30 is reduced is formed in a part of the bus duct 100, the position and the number of formation are not particularly limited.

  In the bus duct support structure of the first embodiment, by attaching the floor support device 400 to the reduced portion 102 of the bus duct 100 and supporting the bus duct 100, compared to the case where the floor support device 400 is attached to the normal portion 101, It becomes possible to arrange the floor support device 400 at a position close to the bus duct 100. As a result, the installation space for the bus duct 100 and the floor support device 400 can be reduced, and when the bus ducts 100 of a plurality of systems are juxtaposed in the thickness direction, the installation interval can be reduced, and the installation interval can be reduced. Instead of reducing the size, a wide working space can be secured, and a design in which the laying interval and workability are appropriately selected is also possible. In addition, when the bus duct support structure of the present embodiment is used for the single system bus duct 100, the installation space can be reduced so that the bus duct support structure can be arranged closer to a wall or the like. The reduced portion 101 has a configuration in which the reinforcing portion of the normal portion 101 extends outward in the thickness direction of the bus duct 100 and the reinforcing portion of the reduced portion 102 extends inward in the thickness direction of the bus duct 100. It is possible to configure the reduced portion 101 having a smaller thickness while ensuring the strength of the apparatus, and to further reduce the installation space.

[Bus Duct Support Structure of Second Embodiment]
Next, the bus duct support structure of the second embodiment will be described. FIG. 4 is a view of the bus duct in the second embodiment, and FIG. 5 is an enlarged view of the bus duct support structure of the second embodiment. In the second embodiment, parts having the same configurations as those in the first embodiment are denoted by the same reference numerals, and a part of description thereof is omitted.

  As shown in FIG. 4, the bus duct 110 in the second embodiment has normal portions 101 having the same configuration as that of the first embodiment on both ends in the longitudinal direction, and the housing 30 in the reduced portion 102 has a flat base. A third reinforcing portion 35 is formed which is bent at approximately 90 degrees outward from both end edges of the surface 31 and extends shorter than the first reinforcing portion 32, and the housing 30 is viewed in the width direction of the bus duct 110. The reduced portion 102 is formed by shortening the first reinforcing portion 32 so as to be cut out.

  That is, the bus duct 110 includes a normal portion 101 formed in a substantially letter-shaped section in cross section by the first reinforcing portion 32 and the second reinforcing portion 33, and a thickness of the bus duct 100 that is substantially I-shaped in cross section than the normal portion 101. The reduced portion 102 whose length in the direction is reduced, in other words, the first reinforcing portion 32 and the second reinforcing portion 33 are removed, and a third reinforcing portion 35, which is another different reinforcing portion, is formed instead. The reduced portion 102 has a reinforcing effect corresponding to the reduced portion 102.

  In the bus duct support structure of the second embodiment, as shown in FIG. 5, the two bus ducts 110-1 and 110-2 pass through through holes (not shown) formed in the floor 300 and are arranged substantially vertically. And the reduced portion 102 is disposed near the upper surface of the floor 300. Floor support devices 400 are arranged on both sides in the thickness direction of the reduced portions 102 of the bus ducts 110 arranged side by side, and are attached to the reduced portions 102 so as to sandwich the bus duct 110 therebetween.

  The bus duct side mounting member 430 of the floor support device 400 according to the second embodiment has a substantially rectangular shape in which the spring member 500 is mounted substantially parallel to the floor 300 and has a length shorter than the width of the bus duct 110, and A clamping piece 432 which is bent at approximately 90 degrees from the side end of the mounting base 431 and extends upward and extends along the base surface 31 of the housing 30 which is a side surface in the thickness direction of the bus duct 110; An extended piece 433 that is bent at approximately 90 degrees from both side ends and extends outward in the thickness direction of the bus duct 110, and extends outward from the edge of the extended piece 433 substantially parallel to the sandwiching piece 432. And a fixed piece 434. The extending piece 433 and the fixed piece 434 are formed to have dimensions that can cross over the third reinforcing portion 35 when the floor support device 400 is attached to the bus duct 110.

  A bolt hole (not shown) is formed in the fixing piece 434 of the bus duct side mounting member 430, and the bolt 415 is passed through the fixing pieces 434 and 434 which are spaced apart from each other with the bus duct 110 interposed therebetween. The bus duct side mounting member 430 is attached to the bus duct 110 by screwing the fixing pieces 434 and 434 with bolts 415 and nuts 416. At this time, since the extending piece 433 and the fixing piece 434 are extended so as to straddle the third reinforcing portion 35, the holding piece 432 of the bus duct side mounting member 430 is a side surface in the thickness direction of the bus duct 110. The base surface 31 is strongly pressed to support the weight of the bus duct, and the weight of the bus duct 110 is supported by the friction between the sandwiching piece 432 and the base surface 31 as in the first embodiment.

  Furthermore, in the bus duct support structure of the second embodiment, the reduced portion 102 of the bus duct 110 is formed, for example, when the reduced portion 102 is set in advance and the housing 30 is formed when the bus duct 110 is assembled in a factory or the like. The bus duct 110, which is the entire normal portion 101, is prepared in advance, and the first reinforcing portion 32 and the second reinforcing portion 33 of the portion to which the floor support device 400 is attached when the bus duct 110 is constructed are cut out in the field. 3 The reinforcing portion 35 is formed, and the reduced portion 102 is formed by post-processing.

  The reduced portion 102 in the second embodiment cuts the first reinforcing portion 32 and the second reinforcing portion 33 so that the cut end of the first reinforcing portion 32 of the bus duct 110 is rectangular as shown in FIGS. 4 and 5. Although the case where the third reinforcing portion 35 is formed by lacking has been described, the shape of the reduced portion 102 is not limited as long as the floor support device 400 can be attached to the bus duct 110. In particular, for example, the first reinforcing portion 32 and the second reinforcing portion 33 are notched to form a third reinforcing portion 35 such that a rectangular corner portion has an arc shape, or a trapezoid that is wide outward. Thus, the first reinforcing portion 32 and the second reinforcing portion 33 are notched so as to form the third reinforcing portion 35, and the cut end of the first reinforcing portion 32 is shaped so that the ellipse is cut in half along the long axis. The first reinforcing portion 32 and the second reinforcing portion 33 may be cut out to form the third reinforcing portion 35. With such a shape, the notching operation is facilitated. Further, when the reduced portion 102 of the bus duct 110 is formed in advance in a factory or the like, it can be formed in a shape without the third reinforcing portion 35. In that case, the bus duct side mounting member of the second embodiment is used. Instead of 430, the bus duct side mounting member 410 of the first embodiment may be used.

  The bus duct support structure of the second embodiment also has the same effect as that of the first embodiment. Further, the bus duct 110 is convenient because the method for forming the reduced portion 102 can be selected. Further, when the reduced portion 102 is formed by removing the reinforcing portion of the normal portion 101 by post-processing, the first reinforcing portion 32 and the second reinforcing portion 33 need only be cut out only at the portion where the floor support device 400 is attached. In addition, it is not necessary to form the reduced portion 102 in a wide range assuming that the floor support device 400 is attached in advance, and the strength reduction of the bus duct 110 can be prevented accordingly.

[Bus Duct Support Structure of Third Embodiment]
Next, the bus duct support structure of the third embodiment will be described. FIG. 6 is a view of the bus duct in the third embodiment, and FIG. 7 is an enlarged view of the bus duct support structure of the third embodiment. Note that in the third embodiment, parts having the same configurations as those in the first embodiment are denoted by the same reference numerals, and description thereof is partially omitted.

  As shown in FIG. 6, the bus duct 120 according to the third embodiment has normal portions 101 having the same configuration as that of the first embodiment at both ends in the longitudinal direction, and the housing 30 in the reduced portion 102 has a flat base. The third reinforcing portion 36 that is bent outward at approximately 90 degrees from both end edges of the surface 31 and extends shorter than the first reinforcing portion 32, and the outer peripheral edge of the third reinforcing portion 36 are substantially opposed to each other. A second reinforcing portion 33 that is bent and extended at 90 degrees is formed, and the strength of the reduced portion 102 of the bus duct 120 is maintained.

  That is, the bus duct 120 includes a normal part 101 formed in a cross-sectional view substantially letter-shaped by the first reinforcing part 32 and the second reinforcing part 33, and a thickness of the bus duct 100 in a cross-sectional view substantially letter-shaped than the normal part 101. The first reinforcing portion 32 is shortened by replacing the first reinforcing portion 32 with a shorter third reinforcing portion 36 than the first reinforcing portion 32 in the housing 30 of the normal portion 101. Thus, a reduced portion 102 is formed. Thus, instead of the first reinforcing portion 32 and the second reinforcing portion 33, by providing the reduced portion 102 formed by the second reinforcing portion 33 and the third reinforcing portion 36 which are other different reinforcing portions. The reduced portion 102 also has a reinforcing effect correspondingly. At the time of manufacture, the plate material corresponding to the first reinforcing portion 32 of the normal portion 101 and the third reinforcing portion 36 of the reduced portion 102 is cut, and the portion corresponding to the reduced portion 102 is first bent to form the second reinforcing portion 33. Forming and then bending the portion corresponding to the normal portion 101 to form the second reinforcing portion 32 is preferable because each reinforcing portion can be easily formed.

  In the bus duct support structure of the third embodiment, as shown in FIG. 7, two systems of bus duct 120-1 and bus duct 120-2 vertically pass through through holes (not shown) formed in the floor 300. At the same time, the reduced portion 102 is installed in the vicinity of the upper surface of the floor 300. Floor support devices 400 are disposed on both sides in the thickness direction of the reduced portions 102 of the bus ducts 120 arranged side by side, and are attached to the reduced portions 102 so as to sandwich the bus duct 120 therebetween.

  The bus duct side mounting member 440 of the floor support device 400 according to the third embodiment is a substantially rectangular shape that is disposed substantially parallel to the floor 300 and to which the spring member 500 is mounted, and has a mounting base 441 that is approximately the same as the width of the bus duct 120. A clamping piece 442 that is bent at approximately 90 degrees from the side end of the mounting base 441 and extends upward, and extends along the base surface 31 of the housing 30 that is the side surface in the thickness direction of the bus duct 120, and the clamping piece 442 And extending pieces 443 extending along the third reinforcing portion 36 of the housing 30, which is a side surface in the width direction of the bus duct 120, bent at approximately 90 degrees from both ends of the bus duct 120.

  A bolt hole (not shown) is formed in the holding piece 442 of the bus duct side mounting member 440, and a bolt 415 is inserted into the bolt hole from the bus duct 120 side. Between the head of the bolt 415 and the clamping piece 442, for example, a flat-plate-shaped locking portion in which a step corresponding to the thickness of the second reinforcing portion 33 and an insertion hole through which the bolt 415 can be inserted is formed. The bolt 415 is inserted in the state. Then, the bus duct-side mounting member 440 is attached to the bus duct 120 by screwing the bolts 415 with the nuts 416 in a state where the level difference of the locking part has turned around to the back side of the second reinforcing part 33 of the bus duct 120. As a result, the holding piece 442 of the bus duct side mounting member 440 strongly presses the second reinforcing portion 33 of the bus duct 120, and the weight of the bus duct 120 is supported by the friction between the holding piece 442 and the second reinforcing portion 33. .

  In the third embodiment, the floor support device 400 is attached to both sides of the bus duct 120 in the thickness direction. However, the floor support device 400 may be provided on one side of the bus duct 120 in the thickness direction. It is.

  The bus duct support structure of the third embodiment also has the same effect as that of the first embodiment. In addition, the reinforcing portion of the normal portion 101 extends outward in the thickness direction of the bus duct 120, the reinforcing portion of the reduced portion 102 extends outward in the thickness direction of the bus duct 120, and the amount of outward protrusion is The configuration different from the normal portion 101 only in that the length of the third reinforcing portion 36 is shorter than that of the normal portion 101, that is, the reduced portion 102 of the bus duct 120 is shorter than the first reinforcing portion 32. Since the configuration is the same as that of the normal portion 101, it is possible to suppress a reduction in strength due to the formation of the reduced portion 102 as much as possible, and the bus duct 120 can be kept highly rigid while realizing a reduction in installation space. .

[Bus Duct Support Structure of Fourth Embodiment]
Next, the bus duct support structure of the fourth embodiment will be described. FIG. 8 is a view of a bus duct according to the fourth embodiment, and FIG. 9 is an enlarged view of a bus duct support structure according to the fourth embodiment. Note that in the fourth embodiment, identical symbols are assigned to parts having the same configuration as in the first embodiment and a portion of the description is omitted.

  As shown in FIG. 8, the bus duct 130 in the fourth embodiment has normal portions 101 having the same configuration as that of the first embodiment at both ends in the longitudinal direction, and the housing 30 in the reduced portion 102 includes the bus duct 130. A flat base surface 31 having a reinforcing region extended to the same extent as the width of the spacer 40 toward both sides in the width direction is formed, bent from both ends of the flat base surface 31 inward by approximately 90 degrees. The third reinforcing portion 37 extended to substantially half the length of the spacer 40, and further extended inwardly from the end edge of the third reinforcing portion 37 by approximately 90 degrees, for example, abuts against the spacer 40 A fourth reinforcing portion 38 extending to a certain length is formed, and the strength of the reduced portion 102 of the bus duct 130 is maintained.

  That is, the bus duct 130 includes a normal portion 101 formed in a substantially work-held shape in cross section by the first reinforcing portion 32 and the second reinforcing portion 33 and a thickness of the bus duct 100 that is substantially elongated rectangular in cross section and larger than the normal portion 101. It is composed of a reduced portion 102 whose length in the direction is reduced. In other words, the first reinforcing portion 32 and the second reinforcing portion 33 are removed from the reduced portion 102. Instead, the reinforcing region of the base surface 31, the third reinforcing portion 37, and the first reinforcing portion, which are other different reinforcing portions, are provided. The four reinforcing portions 38 are formed, and the reduced portion 102 has a state of substantially the same width as the spacer 40, and the reinforcing effect by the reduced portion 102 is obtained.

  In the bus duct support structure of the fourth embodiment, as shown in FIG. 9, two bus ducts 130-1 and 130-2 pass through through holes (not shown) formed in the floor 300 and are arranged substantially vertically. And the reduced portion 102 is disposed near the upper surface of the floor 300. Floor support devices 400 are arranged on both sides in the thickness direction of the reduced portions 102 of the bus ducts 130 arranged side by side, and are attached to the reduced portions 102 so as to sandwich the bus duct 130 therebetween.

  The bus duct side mounting member 450 of the floor support device 400 according to the fourth embodiment includes a substantially rectangular mounting base 451 disposed substantially parallel to the floor 300 to which the spring member 500 is mounted, and approximately 90 degrees from the side end of the mounting base 451. Bending pieces 452 which are bent and extend upward and extend along the base surface 31 of the housing 30 which is the side surface of the bus duct 130 in the thickness direction, and parallel to the holding pieces 452 from both side ends of the holding pieces 452 in the horizontal direction And a fixed piece 453 extending to the center.

  A bolt hole (not shown) is formed in the fixing piece 453 of the bus duct side mounting member 450, and the bolt 415 passes through the fixing pieces 453 and 453 that are spaced apart from each other with the bus duct 130 interposed therebetween. The bus duct side mounting member 450 is attached to the bus duct 130 by screwing the fixing pieces 453 and 453 with bolts 415 and nuts 416. At this time, the sandwiching piece 452 of the bus duct side mounting member 450 strongly presses the base surface 31 of the housing 30 which is the side surface in the thickness direction of the bus duct 130 to support the weight of the bus duct. The weight of the bus duct 130 is supported by the friction between the piece 452 and the base surface 31.

  The bus duct support structure of the fourth embodiment also has the same effect as that of the first embodiment. Further, in the fourth embodiment, the reinforcing portion of the normal portion 101 is extended outward in the thickness direction of the bus duct 130, and the reinforcing portion of the reduced portion 102, that is, the reinforcing region of the base surface 31 as another reinforcing portion, The third reinforcing portion 37 and the fourth reinforcing portion 38 are configured to extend outward in the width direction of the bus duct 130, and the first reinforcing portion 32 and the second reinforcing portion 33 are all in the reduced portion 102 of the bus duct 130. Since it is removed, the effect of reducing the installation space is great. On the other hand, since the third reinforcing portion 37 and the fourth reinforcing portion 38 which are other reinforcing portions are formed on the side where the floor support device 400 which is the width direction side of the bus duct 130 is not disposed, the reduced portion 102 is formed. As a result, the rigidity corresponding to the strength decrease can be replaced by another reinforcing portion. In other words, the installation space can be reduced with a high effect without reducing the overall rigidity of the bus duct 120.

  In the fourth embodiment, the reduced portion 102 is configured to reduce the housing 30 on both sides in the thickness direction of the bus duct 130. However, the housing 30 reduced in the reduced portion 102 is arranged in the thickness direction of the bus duct 130. It is also possible to make the reduced portion 102 only on one side, in other words, only one side in the thickness direction of the bus duct 130. For example, as shown in the bus duct support structure of FIG. 10, two systems of bus ducts 131-1 and 131-2 in which one side of the housing 30 in the reduced portion 102 of the bus duct 130 of the fourth embodiment has the same shape as the normal portion 101 are provided. It is set as the structure to be used. Even in the above configuration, since the floor support device 400 is attached to the reduced portion 102 in which the bus duct 131-1 and the housing 30 of the bus duct 131-2 are reduced in the thickness direction, the floor support device 400 is attached to the normal portion 101. Compared to the above, the floor support device 400 can be disposed at a position close to the bus ducts 131-1 and 131-2. As a result, an effect close to that of the fourth embodiment can be obtained, and it is possible to achieve both reduction of the laying interval and high rigidity maintenance. Further, FIG. 10 illustrates the case where the reduced portion 102 of the bus duct 131-1 and the reduced portion 102 of the bus duct 131-2 face each other. However, the bus duct 131-1 is arranged so that the reduced portions 102 are aligned on the left side or the right side. The bus duct 131-2 may be disposed, or the adjacent bus duct 131-1 and the reduced portion 102 of the bus duct 131-2 may be disposed toward both outer sides. Then, on one floor, the adjacent bus duct 131-1 and the reduced portion 102 of the bus duct 131-2 are arranged so as to face each other, and on another floor, the adjacent bus duct 131-1 and the reduced portion 102 of the bus duct 131-2 are disposed on both outer sides. If it is arranged so as to face, it is possible to achieve both reduction of the laying interval, high rigidity maintenance, and improvement of the support balance.

[Bus Duct Support Structure of Fifth Embodiment]
Next, the bus duct support structure of the fifth embodiment will be described. FIG. 11 is a diagram of the bus duct support structure of the fifth embodiment. Since the bus duct support structure of the fifth embodiment is a support structure when the bus duct 120 of the third embodiment is laid horizontally, the bus duct 120 is denoted by the same reference numerals as those of the third embodiment. In addition, a part of the description is omitted.

  In the bus duct support structure of the fifth embodiment, as shown in FIG. 11, a plurality of bus ducts 120-1 and 120-2 are horizontally supported by a horizontal support device 700 suspended from a ceiling (not shown). It is.

  The horizontal support device 700 is disposed on both sides of a two-line bus duct 120-1 and a bus duct 120-2, which are a plurality of systems, and a pair of columns 710 and 710 suspended from a ceiling portion (not shown), and a substantially U-shaped cross-sectional view. The U-shaped channel member has both ends of the U-shape slightly bent inward at an acute angle, and a support frame 720 spanned between the columns 710 and 710, and a screw groove threaded into the lower end of the column 710 It is attached to a frame fixing member 730 that fixes the support column 710 and the support frame 720 with a nut or the like that is screwed to the rail, and a rail groove that extends along the longitudinal direction of the support frame 720 so as to be movable along the longitudinal direction. In addition, a fixing member 740 that is disposed on both sides in the thickness direction of the bus duct 120 in the reduced portion 102 and holds the reinforcing portion and fixes the reduced portion 102 is provided. The fixing member 740 is formed in a bowl shape, and is supported by being hooked over the second reinforcing portion 33 of the bus duct 120 in the reduced portion 102 and screwed to the support base 720 with bolts and nuts. The bus duct 120 is fixed while being fixed to the gantry 720.

  In the bus duct support structure of the fifth embodiment, when the fixing member 740 is attached to the reduced portion 102 of the bus duct 120 and the bus duct 120 is horizontally supported by the horizontal support device 700, the fixing member 740 is attached to the normal portion 101. In comparison with this, the fixing member 740 can be disposed at a position close to the main body of the bus duct 120. As a result, the installation space of the bus duct 120 on the support base 720 can be reduced, and the support base 720 can be made small regardless of whether the bus duct 120 is a single system or a plurality of systems, in other words, the length in the longitudinal direction. Can be shortened, and the support frame 720 can be arranged closer to the wall or the like by the shortened length. Further, if a plurality of bus ducts 120 are arranged in the thickness direction, it is possible to secure a wide work space instead of reducing the installation interval, and appropriately select the installation interval and workability. Design is also possible.

  In the illustrated fifth embodiment, the bus duct 120 of the third embodiment is horizontally supported by the horizontal support device 700. However, the bus duct 100 of the first embodiment, the bus duct 110 of the second embodiment, or the first A structure in which the bus duct 130 according to the fourth embodiment is horizontally supported by the horizontal support device 700, or the bus ducts 100, 110, 120, and 130 according to the first, second, third, and fourth embodiments are arbitrarily combined and horizontally supported by the horizontal support device 700. It is also possible to adopt a configuration, and it is possible to support an appropriate bus duct having a reduced portion and having the horizontal support device 700 attached to the reduced portion. Further, the configuration of the horizontal support device is not limited to the horizontal support device 700, and may be appropriate as long as it can be attached to a reduced portion of a bus duct to be applied and can horizontally support the bus duct. Even with these configurations, the same effects as in the fifth embodiment can be obtained.

[Bus Duct Support Structure of Sixth Embodiment]
Next, the bus duct support structure of the sixth embodiment will be described. FIG. 12 is a view of a bus duct according to the sixth embodiment, and FIG. 13 is a front view of a bus duct support structure according to the sixth embodiment. Note that in the sixth embodiment, identical symbols are assigned to parts having the same configuration as in the fifth embodiment and a description thereof is partially omitted.

  In the first to fifth embodiments, a reinforcing portion is formed at the end of the housing extending in the thickness direction of the bus ducts 100, 110, 120, and 130, and the reduced portion 102 is formed so as to reduce it. On the other hand, in the bus duct 140 of the sixth embodiment, as shown in FIG. 12, a reinforcing portion is formed at the end of the housing extending in the width direction of the bus duct 140, and the reducing portion 102 is reduced so as to reduce the reinforcing portion. It is the structure which forms.

  In the bus duct 140 according to the sixth embodiment, a pair of housing halves 60 and 60 having the same shape having storage recesses are joined so that the storage recesses face each other, and a plurality of phases (three phases in the illustrated example) are formed therein. An insulation-coated conductor 600 made of insulating coating is accommodated.

  The housing half 60 is formed by subjecting a conductive housing base material to insulation processing. In the normal portion 101 at both ends in the longitudinal direction of the bus duct 140, the housing recess 61 and the housing recess 61 It has the 1st flange 62 extended outward from both ends, and the reinforcement part 63 of the cross-sectional view substantially U shape provided in the front-end | tip of the 1st flange 62. As shown in FIG. An engaging portion 64 is formed at the tip of the reinforcing portion 63 so as to engage with the engaging portions of the other housing half 60 that forms a pair. In addition, the housing half 60 has a housing recess 61 that is substantially U-shaped in cross-section and extends outward from both ends of the housing recess 61 in a reduced portion 102 that is an intermediate portion sandwiched between the normal portions 101 of the bus duct 140. And a second flange 65 shorter than the flange. The pair of housing halves 60 and 60 are opposed to each other by engaging the stepped engagement portions 64 and 64 of the normal portion 101 while housing the insulating coating conductor 600 in a stacked arrangement in the housing recesses 61 and 61. The first flanges 62 and 62 and the second flanges 65 and 65 that are in close contact with each other are coupled by a rivet 66 or the like, and integrated.

  That is, the bus duct 140 includes a normal portion 101 formed in a substantially letter-shaped shape in cross section by the first flange 62 and the reinforcing portion 63, and a substantially elongated rectangular shape in cross section in the width direction of the bus duct 140 than the normal portion 101. In other words, instead of the first flange 62 and the reinforcing portion 63, the reduced portion 102 is formed with a second flange 65 which is another different reinforcing portion. The

  The horizontal support type bus duct support structure that horizontally supports the bus duct 140 is capable of horizontally laying the bus duct 140 in a narrow area such as the back of the ceiling, under the floor, or an existing through hole. For example, the structure shown in FIG. can do. In the bus duct support structure of the sixth embodiment shown in FIG. 13, the support 720 of the horizontal support device 700 is installed by suspending the support column 710 from the first ceiling portion 301 on the back of the ceiling, and the width direction is set up and down on the support support 720. The bus duct 140 is placed so that the bus duct 140 is horizontally supported by the horizontal support device 700. On the upper surface side of the support frame 720, the reduced portion 102 of the bus duct 140 is provided on both sides on the lower side in the width direction of the bus duct 140 to support the housing recess 61 of the housing half 60 from below, and the second housing 65 from both sides. A fixing member 750 for gripping is provided. The fixing member 750 has, for example, a substantially concave shape in cross-sectional view and has a gripping portion in which a female screw hole is formed on one side surface. The housing 65 is a male screw with the second housing 65 of the bus duct 140 accommodated in the concave portion. Is fixed to the bus duct 140 by being screwed so as to be pressed against the inner surface of the recess. The fixing member 750 is screwed to the support frame 720 with bolts and nuts, and is attached to a rail groove extending along the longitudinal direction of the support frame 720 so as to be movable along the longitudinal direction. In this way, the fixing member 750 fixes the bus duct 140 to the support frame 720.

  In the bus duct support structure of the sixth embodiment, the fixing member 750 is attached to the reduced portion 102 of the bus duct 140, and the bus duct 140 placed on the support frame 720 is horizontally supported by the horizontal support device 700, so that Compared to the case where the portion 101 is supported by the support frame 720, the bus duct 140 can be supported in a state of being close to the second ceiling portion 302. As a result, even in a narrow ceiling behind a normal bus duct, for example, the bus duct 140 having only the normal portion 101, the upper and lower laying spaces in the bus duct 140 having the reduced portion 102 are as much as the support frame 720 is accommodated in the reduced portion 102. Can be reduced and can be laid. This is the same even when laying in other narrow areas such as under the floor. In addition, it is possible to secure a wide working space instead of reducing the laying space, and it is possible to design to appropriately reduce the laying space and workability.

  In the sixth embodiment, the bus duct 140 is suspended from the first ceiling 301 and supported horizontally. For example, the support 720 is directly fixed on the second ceiling 302, and the support 720 is supported. The reduced portion 102 of the bus duct 140 can be mounted and fixed on the upper portion, and any structure can be used as long as the support frame 720 as a member for supporting the bus duct 140 is disposed on the reduced portion 102 of the bus duct 140. Even with this configuration, it is possible to obtain the same effect as in the sixth embodiment.

  In the sixth embodiment, in the bus duct 140 having the first flange 62 and the reinforcing portion 63, the reinforcing portion 63 is removed, and the first flange 62 is shortened to form the second flange 65. In the case where the reduced portion 102 is formed, the reduced portion 102 is formed by shortening or removing the first flange 62, for example, in a bus duct having the first flange 62 and not having the reinforcing portion 63. It is also possible to adopt a configuration. That is, the reduced portion 102 can be formed by shortening or removing the reinforcing portion 63, the flange 62, the bolt, the nut, and the like, which are portions protruding outward from the housing or the housing half 60.

[Bus Duct Support Structure of Seventh Embodiment]
Next, the bus duct support structure of the seventh embodiment will be described. FIG. 14 is a diagram of the bus duct support structure of the seventh embodiment. Note that in the seventh embodiment, identical symbols are assigned to parts having the same configuration as in the above embodiment and some of the description thereof is omitted.

 The bus duct support structure of the sixth embodiment is configured to horizontally support the bus duct 140 in which the reduced portion 102 is formed in the width direction, whereas the bus duct support structure of the seventh embodiment has the reduced portion 102 in the width direction. This is a configuration in which the formed bus duct is vertically supported on the floor.

  As shown in FIG. 14C, the bus duct 150 of the seventh embodiment is configured by further removing the reinforcing portion 65 from the bus duct 140 of the sixth embodiment (see FIG. 12).

  In the bus duct support structure of the seventh embodiment, as shown in FIGS. 14A and 14B, the normal bus duct 900 that does not have the reduced portion 102 and the bus duct 150 that has the reduced portion 102 are formed on the floor 300. They are arranged side by side perpendicularly to the formed through-holes (not shown). The bus duct 150 is installed so that the reduced portion 102 is positioned near the upper surface of the floor 300, and floor support devices 400 are disposed on both sides in the width direction of the reduced portion 102, and are attached so as to sandwich the bus duct 150. Yes.

  In the floor support device 400, a bus duct side mounting member 470 attached to a normal bus duct 900 is bent by approximately 90 degrees from a substantially rectangular mounting base 471 disposed substantially parallel to the floor 300 and a side end of the mounting base 471. And sandwiching pieces 472 extending along the end surface in the width direction of the reinforcing portion 63 of the bus duct 900, and a pair of them are arranged on both sides in the width direction of the bus duct 900. Bolt holes (not shown) are formed in the holding pieces 472 of the bus duct side mounting member 470, and bolts 415 are inserted into these bolt holes so as to penetrate the pair of bus duct side mounting members 470 together. The bus duct side attachment member 470 is attached to the bus duct 900 by screwing the nut 416 from the opposite side.

  On the other hand, in the floor support device 400, the bus duct side mounting member 480 attached to the reduced portion 102 of the bus duct 150 is bent approximately 90 degrees from the mounting base 481 disposed substantially parallel to the floor 300 and the side end of the mounting base 481. And sandwiching pieces 482 extending along the widthwise end face of the housing half 60 of the bus duct 150, and a pair of bus strips 150 are disposed on both sides of the bus duct 150 in the width direction. The mounting base 481 is narrower in the thickness direction of the bus duct 150 and longer in the width direction than the mounting base 471 described above. Bolt holes (not shown) are respectively formed in the holding pieces 482 of the bus duct side mounting member 480. Bolts 415 are inserted into these bolt holes so as to penetrate the pair of bus duct side mounting members 480 together. The bus duct side attachment member 480 is attached to the reduced portion 102 of the bus duct 150 by screwing the nut 416 from the opposite side.

  In the bus duct support structure of the seventh embodiment, the width of the bus duct 150 is narrower than the width of the bus duct 900 by the reduced portion 102. As a result, as shown in FIGS. The bus duct 150 to which the bus duct side mounting member 480 is attached is inserted and sandwiched between the sandwiching pieces 472 and 472 of the pair of bus duct side mounting members 470 provided on both sides in the width direction of the bus duct 900. it can. That is, it is possible to reduce the laying interval of the bus ducts of a plurality of systems, and it is also possible to widen the work space instead of reducing the laying interval. Further, even in the relationship between the single system bus duct 150 and the floor support device 400 (in this case, in particular, the bus duct side mounting member 480), the bus duct side mounting member 480 is attached to the reduced portion 102 so that the bus duct side mounting member 480 becomes the normal portion 101. The installation space can be reduced as compared with the case where it is attached to the wall, and it is possible to arrange it close to a wall or the like. Furthermore, the effect corresponding to the first to fourth embodiments and the effect corresponding to the sixth embodiment can be obtained when laying in a narrow region.

[Modifications of Embodiment, etc.]
In addition to the configurations of the inventions and embodiments, the invention disclosed in the present specification is specified by changing these partial configurations to other configurations disclosed in the present specification within the applicable range, or these Including those specified by adding other configurations disclosed in this specification, or those obtained by deleting these partial configurations to the extent that partial effects can be obtained, These modifications are also included.

  For example, similarly to the modification of the fourth embodiment, each of the bus ducts 100, 110, 120 of the first to third embodiments can also be configured by the reduced portion 102 that reduces the reduced housing 30 only on one side. Even in this case, effects close to those of the first to third embodiments can be obtained. If the bus ducts 100, 110, 120, and 130 are asymmetric at both ends in the thickness direction as described above, the mechanism of the floor support device 400 is changed accordingly, for example, each floor of the first to fourth embodiments. It is possible to support the weight of the bus ducts 100, 110, 120, and 130 by appropriately combining the mechanisms of the support device 400.

  In the first to fourth embodiments, the weight of the bus ducts 100, 110, 120, and 130 is supported by using the floor support device 400 that presses and holds the housing 30 of the bus ducts 100, 110, 120, and 130. For example, the bus duct may be supported using a floor support device having a mechanism that can be locked thereto by using a step at the boundary between the normal portion 101 and the reduced portion 102. . That is, if the floor support device that supports the bus ducts 100, 110, 120, and 130 can be arranged in the reduced portion 102 and the effect of reducing the installation space can be obtained, the floor support device is a type that does not have a spring member. It is possible to apply.

  Moreover, in 1st-4th embodiment, although the case where the bus duct 100,110,120,130 laid through perpendicularly | vertically through each floor was supported by each floor support apparatus 400 was demonstrated, the floor support apparatus 400 is It may be provided on each floor to increase the support strength, or at least one is thinned out within a range satisfying the support strength required for the bus ducts 100, 110, 120, and 130, the reduced portion 102 is reduced, and the strength of the housing 30 is reduced. The bus ducts 100, 110 may be structured to be suppressed as much as possible, or provided in a staggered manner for each floor with respect to the adjacent bus ducts 100, 110, 120, 130, reducing the reduced portion 102, and suppressing the strength reduction of the housing 30 as much as possible. , 120 and 130 may be stabilized. Further, the floor support device 400 may be applied when supporting the bus ducts 100, 110, 120, and 130 having a length that does not penetrate the floor, or the bus duct 100 that rises from a structure such as a distribution board or distribution board, The floor support device 400 may be applied as a support structure for 110, 120, and 130, or the above configurations may be arbitrarily combined. That is, according to the present invention, when the bus duct is supported vertically with respect to the structure, the configuration disclosed in the present specification is appropriately selected within a range that satisfies the required support strength and housing strength, whether indoors or outdoors. Can be applied.

  Further, in the first to fourth embodiments, the reduced portion 102 is formed by shortening or removing the reinforcing portion provided in the thickness direction of the bus ducts 100, 110, 120, and 130, and on the thickness direction side thereof. Although the case where the floor support device 400 is provided has been described, the reduced portion 102 may be formed in the thickness direction and the floor support device 400 may be provided on the width direction side. For example, the bus duct support structure shown in FIG. Good. If the installation space can be finally reduced, the formation direction of the reduced portion 102 with respect to the bus ducts 100, 110, 120, 130, and 140 and the installation direction of the floor support device 400 and the horizontal support device 700 are particularly important. Not limited.

  The bus duct support structure of FIG. 15 supports the bus duct 120 (see FIG. 6), and the two bus ducts 120-1 and 120-2 vertically penetrate through through holes (not shown) formed in the floor 300. Side by side. The bus duct 120 is installed so that the reduced portion 102 is positioned near the upper surface of the floor 300, and the floor support devices 400 are disposed on both sides in the width direction of the reduced portion 102 and attached so as to sandwich the bus duct 120. In the illustrated example, the floor-side mounting member 420 that does not include the spring member 500 is used as an example.

  The bus duct side mounting member 460 of the floor support device 400 includes a substantially rectangular mounting base 461 disposed substantially parallel to the floor 300, bent upward by approximately 90 degrees from the side end of the mounting base 461, and the first of the bus duct 120. And a sandwiching piece 462 extending along the reinforcing portion 32. A bolt hole (not shown) is formed in the holding piece 462 of the bus duct side mounting member 460, and the bolt 415 is inserted into the bolt hole from the floor support device 400 side, and the nut 416 is screwed from the opposite side of the bolt 415. Is done. For example, an insertion hole through which the bolt 415 can be inserted is formed between the nut 416 and the sandwiching piece 462, and the locking portion 800 having a substantially U-shaped cross-sectional view is inserted into the insertion hole. Is arranged in. The bus duct side mounting member 460 is attached to the bus duct 120 by screwing with the nut 416 in a state where the locking portion 800 straddles the second reinforcing portion 33 of the bus duct 120. The same effect as that of the third embodiment can be obtained with the bus duct support structure of this example.

  In the first to fifth embodiments, the reduced portion 102 is formed by reducing the reinforcing portion formed at the end of the housing extending in the thickness direction of the bus ducts 100, 110, 120, and 130. The seventh embodiment is a configuration in which the reduced portion 102 is formed by reducing or removing the reinforcing portion formed at the end of the housing extending in the width direction of the bus duct 150, but the present invention is not limited thereto. The present invention is also applicable to a case where a bus duct in which reinforcing portions are formed at both the end portion of the housing extending in the thickness direction of the bus duct and the end portion of the housing extending in the width direction is supported. Specifically, for example, in the normal portion 101 of the bus duct 100 of FIG. 2, the second reinforcing portion 33 of the housing 30 is bent and extended at approximately 90 degrees so as to be separated from the outer edge of the first reinforcing portion 32. The case where it is done is assumed. In this case, the first reinforcing portion 32 extends in the thickness direction of the bus duct 100, and the second reinforcing portion 33 extends in the width direction of the bus duct 100. , A configuration in which the reduced portion 102 is provided in the second reinforcing portion 33, or a configuration in which the reduced portion is provided in both of them, and the effect corresponding to the first to sixth embodiments can be obtained by such a configuration. Is obtained.

  In the first to seventh embodiments, the case where the bus ducts 100, 110, 120, 130, and 140 are supported indoors in a building structure such as an office building, a factory, or a substation is described. The present invention is not limited to this, and includes cases in which building structures such as office buildings, factories, and substation facilities are supported outdoors, and cases in which they are supported by being attached to facilities such as switchboards and distribution boards. That is, any configuration in which the bus ducts 100, 110, 120, 130, and 140 are supported by being attached to an appropriate structure is included in the present invention. In this case, the same effect as described above can be obtained.

  In the first to seventh embodiments, the case where the bus ducts 100, 110, 120, 130, and 140 are bus ducts of a type in which insulation-coated conductors are laminated has been described. Even when applied to a bus duct, the same effect as described above can be obtained.

  In addition, in consideration of the effect of reducing the installation space of the bus duct, optimization with the strength, workability on the site, etc., the bus duct of the first to seventh embodiments, its supporting device, and modifications thereof are arbitrarily combined. It is possible. In addition, the installation direction of the bus duct is not limited to a single system or a plurality of systems, and is not limited to a vertical installation or a horizontal installation, but may be configured to extend in a predetermined direction such as an inclined inclination. The present invention is applicable. Further, when a plurality of reduced portions 102 are provided, they can be provided in the longitudinal direction of the bus duct at a predetermined pitch, such as a constant pitch or a different pitch of a predetermined pattern.

  The present invention can be used when supporting a bus duct.

DESCRIPTION OF SYMBOLS 30 ... Housing 31 ... Base surface 32 ... 1st reinforcement part 33 ... 2nd reinforcement part 34, 35, 36, 37 ... 3rd reinforcement part 38 ... 4th reinforcement part 40 ... Spacer 41 ... Bolt 42 ... Nut 60 ... Housing half Body 61 ... Storage recess 62 ... First flange 63 ... Reinforcement part 64 ... Engagement part 65 ... Second flange 66 ... Rivet 100, 100-1, 100-2, 110, 110-1, 110-2, 120, 120 -1, 120-2, 130, 130-1, 130-2, 131-1, 131-2, 140, 150, 900 ... bus duct 101 ... normal portion 102 ... reduced portion 200, 200-1, 200-2 ... Connection part 300, 300-1, 300-2 ... Floor 301 ... First ceiling part 302 ... Second ceiling part 400 ... Floor support device 410, 430, 440, 450, 46 470: Bus duct side mounting member 411, 431, 441, 451, 461, 471, 481 ... Mounting base 412, 432, 442, 452, 462, 472, 482 ... Nipping piece 413, 433, 443 ... Extending piece 414, 434, 453 ... Fixed piece 415 ... Bolt 416 ... Nut 420 ... Floor side mounting member 421 ... First channel member 422 ... Second channel member 500 ... Spring member 600 ... Insulation coated conductor 700 ... Horizontal support device 710 ... Post 720 ... Support Base 730 ... Supporting member 740, 750 ... Fixing member 800 ... Locking part

Claims (5)

A bus duct support structure in which a conductor is covered with a housing and is supported by a support device, and the bus duct is disposed in the structure.
A portion of the housing is reduced at least one of the thickness and width of the bus duct;
A bus duct support structure, wherein the support device is attached to a reduced portion of the housing. A plurality of bus ducts are arranged in parallel in the structure,
The bus duct support structure according to claim 1, wherein the reduced portion is formed in at least one bus duct of a plurality of bus ducts. The bus duct in which the reduced portion is formed is laid substantially perpendicular to the structure,
The bus duct support structure according to claim 1 or 2, wherein the support device supports the bus duct in which the reduced portion is formed in a substantially vertical state. A reinforcing part is formed in the housing,
The bus duct support structure according to any one of claims 1 to 3, wherein a reduced portion of the housing is formed by a shape that shortens or removes the reinforcing portion.   5. The reinforcing portion different from the reinforcing portion is provided at least partially around the reduced portion of the housing while substantially maintaining the reduced state of the reduced portion. The bus duct support structure described in 1.

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