JP2011176960A - Assembly type bus duct and bus duct box - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an assembly type bus duct whose assembly is easy and which can reduce damage of an insulating conductor when a case (box) storing the insulating conductor is attached to the long insulating conductor and to provide a bus duct box. <P>SOLUTION: The bus duct box includes a lower plate member having a flat bottom portion, a lower vertical face portion which is integrally formed at a right angle with the bottom portion, a lower engaging portion arranged in the lower vertical face portion; and a connection lower plate material formed of a flat plate material connected to one end in a longitudinal direction of the bottom portion; and an upper plate member having a flat upper face portion, an upper vertical face portion which is integrally formed at the right angle with the upper face portion, an upper engaging portion disposed in a part corresponding to the lower engaging portion in the upper vertical face portion, and a connection upper plate material which is connected to an outer surface of an end in the longitudinal direction of the upper face portion and the upper vertical face portion. The lower plate member and the upper plate member are combined facing each other. An inner surface of the upper vertical face portion of the upper plate member is overlapped with an outer surface of the lower vertical face portion of the lower plate member to assemble the bus duct box. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to a bus duct used as a power supply main line or a power distribution main line and a box for the bus duct.

  Bus ducts are used as power supply trunks or power distribution trunks in buildings, factories, etc., and box-shaped cases (boxes) made of iron, aluminum, etc. covered with a strip conductor such as copper, aluminum, etc. It is what was stored in.

  When laying a bus duct, first, a long insulated conductor is laid at a predetermined length on site, and then a case (box) made of iron or aluminum is attached so as to surround the laid insulated conductor. Lay the bus duct over the length. The case (box) is usually formed as a unit having a length of 3 m, and a desired number of cases (boxes) are combined at the site in order to cover a desired length of the insulated conductor. Cases (boxes) are assembled by joining the cases (boxes) together and attaching a fixing band by bolting to the attached parts. Conventionally, the cases (boxes) are assembled linearly.

  FIG. 13 is a diagram for explaining connection of a conventional box for a bus duct. The strip members 104 are arranged at predetermined intervals so as to cover the outer peripheral portions of the upper plate member 103 and the lower plate member 102 that form the bus duct box, and the holes formed at the end portions of the strip member are overlapped with each other. It is fixed by. Another wide band-shaped member 119 is disposed at one end of the bus duct box to connect the bus duct boxes.

JP 2000-78729 A

  As described above, in order to fix the case (box) that covers the conductor of the bus duct, it is necessary to attach 7 fixing bands with a unit of 3 m length, which is very troublesome for construction on site. . Further, since the ends of the cases (boxes) abut the cases (boxes) at the time of connection, a seam is generated, and it is necessary to attach the above-described fixing band to the seam. Conventionally, the cases (boxes) are assembled in a straight line, and it has been difficult to lay the bent case.

  Accordingly, an object of the present invention is to provide an assembly-type bus duct and a bus duct that are easy to assemble and reduce damage to the insulated conductor when a case (box) that houses the insulated conductor is attached to a long insulated conductor. The purpose is to provide a box.

  The inventor conducted extensive research to solve the conventional problems. As a result, the lower plate member and the upper plate member each having a U-shaped cross section are combined to face each other, and the concave portions provided on the respective vertical surface portions are fitted to form a one-touch type fitting bus duct box. In addition, if one end of the bus duct box is provided with a connecting portion of the type in which the other end is fitted, a plurality of short bus duct boxes can be combined to obtain a desired length. It was found that a prefabricated bus duct can be formed. The present invention has been made based on the research results described above.

  The first aspect of the box for a bus duct according to the present invention includes a flat bottom surface portion, lower vertical surface portions integrally formed upward at right angles to the bottom surface portion at both side end portions of the bottom surface portion, A lower plate member for connection comprising a lower fitting portion provided at each longitudinal end portion of the lower vertical surface portion and a flat plate member connected to the outer surface of one end portion in the longitudinal direction of the bottom surface portion. A lower plate member, a flat upper surface portion, upper vertical surface portions integrally formed downward at both end portions of the upper surface portion at right angles to the upper surface portion, and each of the upper vertical surface portions. Connected to the upper fitting portion provided at a portion corresponding to the lower fitting portion at both ends in the longitudinal direction of the upper surface and the outer surface of one end portion in the longitudinal direction of the upper surface portion and the upper vertical surface portion. An upper plate member provided with an upper plate member for connection having a U-shaped cross section, and the lower plate A bus duct box is constructed by assembling a material and the upper plate member so as to face each other and assembling the inner surface of the upper vertical surface portion of the upper plate member on the outer surface of the lower vertical surface portion of the lower plate member. .

  According to a second aspect of the bus duct box of the present invention, the lower fitting portion is formed of a lower recess formed to protrude inward, and the upper fitting portion protrudes inward. A box body for a bus duct, which is formed by an upper concave portion that fits into the lower concave portion.

  According to a third aspect of the bus duct box of the present invention, the lower fitting portion is formed of an opening, the upper fitting portion is formed to protrude inward, and is fitted with the opening. It is a box for bus ducts characterized by comprising upper concave portions to be joined.

  A first aspect of the assembly-type bus duct according to the present invention is an assembly-type bus duct that accommodates a plurality of conductors therein, and is integrally formed with a flat bottom surface portion and both side end portions of the bottom surface portion at right angles to the bottom surface portion. A lower vertical surface portion formed upward, a lower fitting portion provided at each longitudinal end portion of the lower vertical surface portion, and an outer surface of one end portion in the longitudinal direction of the bottom surface portion A lower plate member having a lower plate member for connection made of a flat plate member connected to the plate, a flat upper surface portion, and both sides of the upper surface portion integrally and perpendicularly to the upper surface portion. The formed upper vertical surface portion, the upper fitting portion provided in the portion corresponding to the lower fitting portion at both longitudinal ends of the upper vertical surface portion, and the upper surface portion and the upper vertical surface portion. U-shaped cross section connected to the outer surface of one end in the longitudinal direction An upper plate member provided with an upper plate member for connection, and the lower plate member and the upper plate member are combined to face each other, and the upper plate member of the lower plate member has an outer surface on the outer surface of the lower vertical surface portion. An assembly-type bus duct comprising a box for a bus duct that is assembled by superimposing inner surfaces of upper vertical surface portions.

  According to a second aspect of the assembly-type bus duct of the present invention, the connection portion formed by the lower plate material for connection and the upper plate material for connection combined with one assembly-type bus duct includes a play portion, The assembled bus duct is characterized in that a combined end portion of another one of the assembled bus ducts is refractably connected at a predetermined angle inside the side plate and the connection upper plate.

  Another aspect of the bus duct box of the present invention includes a flat bottom surface portion, a lower vertical surface portion integrally formed on both side end portions of the bottom surface portion perpendicularly to the bottom surface portion, and the lower portion. A lower protrusion provided at each longitudinal end of each vertical surface portion and projecting inward; and a flat plate connected to the outer surface of one end of the bottom surface in the longitudinal direction A lower plate member provided with a lower plate member for connection, a flat upper surface portion, upper vertical surface portions formed integrally downward at right angles to the upper surface portion on both side end portions of the upper surface portion, A flat side portion integrally formed in parallel with the upper surface portion at each lower end portion of the upper vertical surface portion, and an upward end in parallel with the upper vertical surface portion at the outer end portion of the flat side portion. And one end in the longitudinal direction of the upper surface portion. An upper plate member having a U-shaped connecting upper plate member connected to the outer surface of the upper plate member, and the lower plate member and the upper plate member are combined to face each other, on the lower plate member The flat side portion of the upper plate member is placed, the inner surface of the vertical portion of the upper plate member for connection having a U-shaped cross section of the upper plate member, and the outer surface of the lower vertical surface portion of the lower plate member It is a box for bus ducts that is assembled with and overlaid.

  According to another aspect of the bus duct box of the present invention, after the upper plate member is placed on the lower plate member, the lower protrusion prevents the side plate vertical surface portion of the upper plate member from moving upward. It is a box for bus ducts, which functions as a stopper to be used.

  Another aspect of the assembly-type bus duct according to the present invention is an assembly-type bus duct that accommodates a plurality of conductors therein, and is integrally formed with a flat bottom surface portion and both side end portions of the bottom surface portion at right angles to the bottom surface portion. A lower vertical surface portion formed toward the upper side, a lower protrusion portion formed at each of both longitudinal ends of the lower vertical surface portion and projecting inward, and one of the bottom surface portions in the longitudinal direction A lower plate member having a lower plate member for connection made of a flat plate member connected to the outer surface of the end portion of the upper surface portion, a flat upper surface portion, and both side end portions of the upper surface portion integrated at right angles with the upper surface portion An upper vertical surface portion formed in a downward direction, a flat side portion integrally formed in parallel with the upper surface portion at a lower end portion of the upper vertical surface portion, and an outer end portion of the flat side portion. Formed integrally with the upper vertical surface in the upward direction A lower plate member comprising a side vertical surface portion and an upper plate member for connection having a U-shaped cross section connected to an outer surface of one end portion in the longitudinal direction of the upper surface portion. And the upper plate member is opposed to each other, the flat side portion of the upper plate member is placed on the lower plate member, and the upper plate member for connection having a U-shaped cross section of the upper plate member. An assembly-type bus duct comprising a bus duct box that is assembled by being overlapped with an inner surface of a vertical portion and an outer surface of a lower vertical surface portion of the lower plate member.

  According to the box for bus ducts of the present invention, because of the fitting method, there is no need to attach a fixing band by troublesome bolt tightening, and the work at the site becomes easy. That is, a one-touch fitting type bus duct box is formed by combining the lower plate member and the upper plate member each having a U-shaped cross section facing each other and fitting the concave portions provided in the respective vertical surface portions. In addition, if one end of the bus duct box is provided with a connecting portion of the type in which the other end fits, a plurality of short bus duct boxes can be combined to obtain a desired length. A prefabricated bus duct can be formed.

  According to the present invention, the connecting portion of the bus duct box is provided with a slight play, and the end of the other bus duct box is inserted, so the size of the hollow portion having a rectangular cross section of the connecting portion is adjusted. As a result, the connection between the bus duct boxes is not linear but can be refracted at a predetermined angle, and the plurality of bus duct boxes are generally curved along a polygonal cross section. Can be connected.

FIG. 1 is an exploded view for explaining a bus duct box of the present invention. FIG. 2 is a perspective view showing a bus duct box formed by combining a lower plate member and an upper plate member to face each other. FIG. 3 is a cross-sectional view showing details of the superimposed lower and upper fitting parts. FIG. 4 is a partial perspective view for explaining a connecting portion of the bus duct box 1 shown in FIG. FIG. 5 is a longitudinal sectional view taken along a plane parallel to the bottom surface portion of the lower plate member, for explaining a state in which two bus duct boxes 1 are bent and connected. FIG. 6 is a perspective view of the bus duct box shown in FIG. 2 as seen from another angle. FIG. 7 is an exploded view for explaining a bus duct box of another embodiment of the present invention. FIG. 8 is a perspective view showing a bus duct box formed by combining a lower plate member and an upper plate member to face each other. FIG. 9 is a perspective view of the bus duct box shown in FIG. 8 as seen from another angle. FIG. 10 is a diagram for explaining a bus duct box in another mode different from the mode described with reference to FIGS. FIG. 11 is a diagram illustrating a state in which two bus duct boxes of the mode described with reference to FIGS. 1 and 2 are connected. FIG. 12 is a diagram for explaining a state where two bus duct boxes of the aspect described with reference to FIG. 10 are connected. FIG. 13 is a diagram for explaining connection of a conventional box for a bus duct.

The assembly-type bus duct and bus duct box of the present invention will be described with reference to the drawings.
FIG. 1 is an exploded view for explaining a bus duct box of the present invention. The bus duct box 1 of the present invention comprises a lower plate member 2 and an upper plate member 3, and is formed by combining the lower plate member 2 and the upper plate member 3 to face each other.

  The lower plate member 2 includes a flat bottom surface portion 5, a lower vertical surface portion 6 integrally formed on both side end portions of the bottom surface portion 5 and perpendicularly to the bottom surface portion 5, and a lower vertical surface portion 6. The lower fitting part 7 provided in the both ends of the longitudinal direction and the lower plate material 8 for connection which consists of a flat board material connected to the outer surface of one edge part of the longitudinal direction of the bottom face part 5 are provided. Yes.

The upper plate member 3 that is combined to face the lower plate member 2 includes a flat upper surface portion 9 and upper vertical surface portions that are integrally formed on both side end portions of the upper surface portion 9 at a right angle with the upper surface portion 9 toward the lower side. 10, an upper fitting portion 11 provided at a portion corresponding to the lower fitting portion 7 of the lower plate member 3 described above at both longitudinal ends of the upper vertical surface portion 10, the upper surface portion 9, and the upper portion And a connection upper plate 12 having a U-shaped cross section connected to the outer surface of one end portion in the longitudinal direction of the vertical surface portion 9.

  That is, the above-described flat bottom surface portion 5 of the lower plate member 2 and the flat upper surface portion 9 of the upper plate member 3 have substantially the same size (length / width), and the lower vertical surface portion 6 of the lower plate member 2 and The upper vertical surface portion 10 of the upper plate member 3 has substantially the same size (height, length, width).

  FIG. 2 is a perspective view showing a bus duct box 1 formed by combining a lower plate member 2 and an upper plate member 3 to face each other. That is, the lower plate member 2 and the upper plate member 3 described with reference to FIG. 1 are combined to face each other, and the inner surface of the upper vertical surface portion 10 of the upper plate member 3 is formed on the outer surface of the lower vertical surface portion 6 of the lower plate member 2. It is the box 1 for bus ducts which the surface was piled up and assembled.

  The lower fitting portion 7 described above includes, for example, a lower concave portion formed by projecting a part of both ends in the longitudinal direction of the lower vertical surface portion 6 inward. Furthermore, the upper fitting part 11 mentioned above consists of the upper recessed part formed so that a part of both ends of the longitudinal direction of the upper vertical surface part 10 might protrude inside, for example. The upper concave portion that is the upper fitting portion 11 is provided in a portion corresponding to the lower concave portion that is the lower fitting portion 7, and is assembled so as to overlap the upper concave portion and the lower concave portion. The lower fitting portion described above is formed of an opening (for example, a rectangle), and the upper fitting portion described above is formed so as to protrude inward and is formed of an upper concave portion that is fitted to the opening. Also good.

  FIG. 3 is a cross-sectional view showing details of the lower fitting portion 7 and the upper fitting portion 11 that are overlaid. As shown in FIG. 3, the upper concave portion 11 of the upper vertical surface portion 10 and the lower concave portion 7 of the lower vertical surface portion 6 are processed so that the cross section protrudes in a semi-elliptical shape in the same direction, and the upper concave portion 11 and the lower recessed part 7 are overlapped and fixed. Four such upper recesses 11 and lower recesses 7 are provided. As described above, since the fitting portions are provided in at least four places, the conductor (not shown) arranged in the space formed by the lower plate member 2 and the upper plate member 3 is expanded by heat. However, the bonding between the lower plate member 2 and the upper plate member 3 is not released, and it is possible to realize a strong and highly reliable bonding.

  An example of the width, height, and length when the lower plate member 2 and the upper plate member 3 are assembled is as follows. Regarding the width, when the width of the conductor accommodated in the inside is 150 mm, the width of the bus duct is about 165 mm. Regarding the height, when the height of the conductor accommodated in the inside is 6 mm and accommodates three conductors, The height of the bus duct is about 30 mm, and the length is about 3 mm in the present invention, which is about 3 mm in the present invention.

  With respect to the size of the fitting portion, it is preferable that the fitting portions provided at both ends are separated from each other by 200 mm or less (about half or less in the bus duct length direction). Thus, by providing 200 mm or less apart, the connection strength when the bus duct is assembled is improved. In consideration of connection strength, the size of the fitting portion is preferably as follows. That is, the size of the fitting portion (in the case of a dowel): 10 mm × 30 mm × depth of about 5 mm is preferable. The size of the fitting portion (in the case of holes): about 10 mm × 30 mm is preferable.

  FIG. 4 is a partial perspective view for explaining a connecting portion of the bus duct box 1 shown in FIG. The connecting portion 15 of the bus duct box 1 is a hollow portion having a rectangular cross section formed by combining the lower connecting plate member 8 and the upper connecting plate member 12 having a U-shaped cross section. The end portion on the opposite side of the connecting portion 15 of the bus duct box 1 is inserted into the connecting portion 15 so that the bus duct boxes 1 are connected to each other.

  As shown in FIG. 4, the upper plate 12 for connection having a U-shaped cross section composed of a flat upper surface 16 and a vertical surface 13 extending vertically downward integrally from both ends of the flat upper surface 16, and a flat plate The connecting lower plate member 8 is combined to form a hollow section having a rectangular cross section. Both ends in the width direction of the connecting lower plate 8 support the lower end of the vertical surface 13 of the connecting upper plate 12.

  The connecting portion 15 formed in such a combination is formed by a flat bottom surface portion 5 and a lower vertical surface portion 6 which are one end portion (left end portion in FIG. 2) of the lower plate member 2. The upper vertical surface portion 10 of the upper plate member 3 that covers the corner portion and the lower vertical surface portion 6 in close contact with each other is located. An end portion in which the lower plate member 2 and the upper plate member 3 are combined is inserted into the hollow portion having a rectangular cross section of the connection portion 15 to connect the bus duct boxes 1 to each other.

  FIG. 5 is a longitudinal sectional view taken along a plane parallel to the bottom surface portion of the lower plate member, for explaining a state in which two bus duct boxes 1 are bent and connected. As shown in FIG. 5, some play portions 37 are provided above and below the connection portion 15 of the bus duct box 1, and an end portion in which the lower plate member 2 and the upper plate member 3 are combined is inserted. That is, on the lower plate member 8 for connection made of a flat plate member sandwiched between both vertical end surfaces of the upper plate member 12 for connection, the bottom surface portion 5 of the lower plate member 2 and the lower vertical surface portion 6 overlapped on both sides, The upper vertical surface portion 10 is placed with a play portion 37. In this way, by adjusting the size of the hollow portion having a rectangular cross section of the connection portion 15 to form the play portion 37, the connection between the bus duct boxes 1 is not linear but is refracted at a predetermined angle θ. It becomes possible to connect, and the plurality of bus duct boxes 1 can be connected by being generally curved along a polygonal cross section. As described above, the play portion is formed in the connection portion, and the end portion can be refractably connected by the presence of the play portion.

  FIG. 6 is a perspective view of the bus duct box shown in FIG. 2 as seen from another angle. A recess 35 is formed in the central portion on one end side of the upper surface portion 9, and the inner central portion of the upper plate member 12 for connection is formed. A protrusion 36 is formed. When the end portion where the lower plate member 2 and the upper plate member 3 are combined is inserted into a hollow section having a rectangular cross section formed by combining the upper plate member 12 for connection and the lower plate member 8 for connection. By fitting the projecting portion 36 to the portion 35, it is possible to easily realize the connection confirmation between the bus duct boxes 1 and to increase the connection strength. Furthermore, by making the longitudinal section of the recess 35 and the protrusion 36 into a semicircular shape, it is possible to realize a smooth connection when the bus duct boxes 1 are refracted and connected. In addition, in the aspect mentioned above, although the hollow part 35 and the projection part 36 are provided in the upper surface, you may provide in a lower surface and may be provided in a side surface.

  FIG. 7 is an exploded view for explaining a bus duct box 1 according to another embodiment of the present invention. Similarly to the embodiment described with reference to FIGS. 1 and 2, the bus duct box 1 of this embodiment also includes a lower plate member 20 and an upper plate member 30. The lower plate member 20 and the upper plate member 30 are formed to be opposed to each other.

  The lower plate member 20 includes a flat bottom surface portion 25, a lower vertical surface portion 26 formed integrally with the bottom surface portion 25 at a right angle on both side ends of the bottom surface portion 25, and a lower vertical surface portion 26. The lower projection 27 is provided at both ends in the longitudinal direction of each of the projections and is formed to project inward, and a connection made of a flat plate connected to the outer surface of one end of the bottom in the longitudinal direction. The lower plate material 28 is provided.

  The upper plate member 30 combined to face the lower plate member 20 is formed integrally with a flat upper surface portion 29 and at both side ends of the upper surface portion 29 in the width direction integrally with the upper surface portion 29 toward the lower side. The upper vertical surface portion 31, the flat side portion 33 integrally formed in parallel with the upper surface portion 29 at the respective lower end portions of the upper vertical surface portion 31, and the upper vertical surface portion 31 at the outer end portion of the flat side portion 33 A side vertical surface portion 32 formed integrally upward in parallel and a connection upper plate member 22 having a substantially U-shaped cross section connected to the outer surface of one end portion in the longitudinal direction of the upper surface portion. ing.

In the bus duct box 1 of this aspect, the lower plate member 20 and the upper plate member 30 are combined to face each other, and the flat side portion 33 of the upper plate member 30 is placed on the lower plate member 30. .
FIG. 8 is a perspective view showing a bus duct box formed by combining a lower plate member and an upper plate member to face each other. That is, when the lower plate member 20 and the upper plate member 30 described with reference to FIG. 7 are combined to face each other, the flat side portion 33 of the upper plate member 30 is placed on the flat bottom surface portion 25 of the lower plate member 20. The side vertical surface portion 32 of the upper plate member 30 is placed in contact with the lower vertical surface portion 26 of the lower plate member 20.

  At this time, the upper end portion of the side vertical surface portion 32 of the upper plate member is pressed and fixed by the lower projection 27 formed to protrude inwardly provided in the lower vertical surface portion 26. In the embodiment shown in the figure, the lower vertical surface portion 26 has a substantially inverted L-shaped cross section, but may be a vertical plate material. The lower plate member 20 and the upper plate member 30 are combined by moving the upper plate member 30 from the upper side to the lower plate member 20 substantially vertically downward. The connecting plate 15 is formed by the connecting lower plate member 28 and the connecting upper plate member 22, and the end of the bus duct box 1 opposite to the connecting portion is inserted into the connecting portion 15.

  FIG. 9 is a perspective view of the bus duct box shown in FIG. 8 as seen from another angle. As shown in FIG. 9, the flat side portion 33 of the upper plate member 30 is placed on the flat bottom surface portion 25 of the lower plate member 20, and the side vertical surface portion 32 of the upper plate member 30 is placed on the lower plate member 20. The lower vertical surface portion 26 is disposed in contact with each other. An upper end portion of the side vertical surface portion 32 of the upper plate member 30 is pressed by the lower protrusion portion 27 formed to protrude inwardly provided on the lower vertical surface portion 26, and the upper plate member 30 is pressed against the lower plate member 20. Fixed. A connecting portion 15 is formed by the connecting lower plate member 28 and the connecting upper plate member 22.

  In this way, the upper plate member 30 is not a simple U-shaped cross section, but the upper vertical surface portion 31, the side vertical surface portion 32, and the flat side portion 33 are formed, so that the mechanical strength of the bus duct box is increased. Even when a conductor (not shown) arranged in a space formed by the lower plate member 20 and the upper plate member 30 is expanded by heat, the lower plate member 20 and the upper plate member 30 are joined. It is possible to realize a strong and reliable bonding without coming off.

  In this embodiment as well, the recess 35 is formed at the central portion on one end side of the upper surface portion 29, and the protrusion 36 is formed at the central portion on the inner side of the upper plate member 22 for connection. When the end portion where the lower plate member 20 and the upper plate member 30 are combined is inserted into a hollow portion having a rectangular cross section formed by combining the upper plate member 22 for connection and the lower plate member 28 for connection. By fitting the projecting portion 36 to the portion 35, it is possible to easily realize the connection confirmation between the bus duct boxes 1 and to increase the connection strength. Furthermore, by making the longitudinal section of the recess 35 and the protrusion 36 into a semicircular shape, it is possible to realize a smooth connection when the bus duct boxes 1 are refracted and connected. As described above, also in this aspect, the recess 35 and the protrusion 36 are provided on the upper surface, but may be provided on the lower surface or may be provided on the side surface.

  Furthermore, also in this aspect, the play part 37 is provided in the connection part 15 of the box 1 for bus ducts. An end portion in which the lower plate member 20 and the upper plate member 30 are combined is inserted into the connection portion 15 including the play portion 37. That is, the upper vertical surface portion 31 and the upper surface 29 combined with the bottom surface portion 25 of the lower plate member 20 are formed on the lower connection plate material 28 made of a flat plate material sandwiched between both vertical end surfaces of the upper connection plate material 22. Is mounted with a play portion 37. In this way, by adjusting the size of the hollow portion having a rectangular cross section of the connection portion 15 to form the play portion 37, the connection between the bus duct boxes 1 is not linear but is refracted at a predetermined angle θ. It becomes possible to connect, and the plurality of bus duct boxes 1 can be connected by being generally curved along a polygonal cross section. As described above, the play portion is formed in the connection portion, and the end portion can be refractably connected by the presence of the play portion.

  FIG. 10 is a diagram for explaining a bus duct box in another mode different from the mode described with reference to FIGS. In the aspect shown in FIG. 10, the upper plate member 30 and the lower plate member 20 are arranged in the upside down direction, and the upper plate member 30 is moved in the horizontal direction instead of the up and down direction, and fitted to the lower plate member 20. The connecting lower plate member 28 that forms the connecting portion is formed along the outer peripheral surface of the bottom surface portion 25 and the lower vertical surface portion 26 of the lower plate member 20. Similarly, the upper connecting plate 22 that forms the connecting portion is formed along the upper surface 29 of the upper plate member and the outer peripheral surface of the upper vertical surface portion 31.

  FIG. 11 is a diagram illustrating a state in which two bus duct boxes of the mode described with reference to FIGS. 1 and 2 are connected in the longitudinal direction of the bus duct. As shown in FIG. 11, an end portion in which the lower plate member 2 and the upper plate member 3 are combined is inserted into a hollow portion having a rectangular cross section of the connection portion 15 to connect the bus duct boxes 1 to each other.

  FIG. 12 is a diagram for explaining a state in which two bus duct boxes of the mode described with reference to FIG. 10 are connected in the longitudinal direction of the bus duct. As shown in FIG. 12, the lower rectangular member 20 and the lower rectangular member of the connecting portion 15, which is a hollow portion having a rectangular cross section formed by combining the lower connecting plate material 28 and the upper connecting plate material 22, The end combined with the upper plate member 30 is inserted, and the bus duct boxes 1 are connected to each other. As shown in FIGS. 11 and 12, by connecting a plurality of bus duct boxes in the longitudinal direction of the bus duct, it is possible to manufacture an assembly-type bus duct having an arbitrary shape with a predetermined length.

  An assembly-type bus duct is formed by arranging a conductor via an insulator in the bus duct box described with reference to FIGS. That is, an assembly-type bus duct that accommodates a plurality of conductors therein, and includes, for example, a lower plate member 2 and an upper plate member 3 as described with reference to FIG. The bus member box 1 is assembled in which the plate members 3 are opposed to each other and assembled by superposing the inner surface of the upper vertical surface portion 10 of the upper plate member 3 on the outer surface of the lower vertical surface portion 6 of the lower plate member 2. . Insulated conductors arranged in the box for bus ducts are composed of thin laminated laminated conductors in which thin conductors are laminated and covered with an insulator, so that the assembly type bus duct is more easily bent. .

  In order to connect the assembled bus ducts, as shown in FIG. 6, a protrusion 36 is provided on the inner wall of the connection part 15 of the bus duct box 1, and the end opposite to the connection part 15 of the bus duct box 1. You may provide the hollow part 35 corresponding to the projection part 36 in the outer wall of a part. Thus, by providing the projection part 36 and the hollow part 35, it is possible to prevent the connected bus duct boxes 1 from being detached.

  As described above, according to the present invention, when a case (box) for housing an insulated conductor is attached to a long insulated conductor, the assembly bus duct can be easily assembled and can reduce damage to the insulated conductor. And a box for a bus duct can be provided.

DESCRIPTION OF SYMBOLS 1 Bus duct box 2 Lower plate member 3 Upper plate member 4 Band-shaped member 5 Bottom surface part 6 Lower vertical surface part 7 Lower fitting part, lower recessed part 8 Lower plate member 9 for connection Upper surface part 10 Upper vertical surface part 11 Upper fitting part , Upper concave portion 12 upper plate member for connection 13 vertical surface 14 connection portion 15 that can be opened and closed connection portion 16 upper surface 17 upper member 18 lower member 19 another band member 24 fixing portion 35 hollow portion 36 projection portion 37 play portion

Claims (9)

A flat bottom surface portion, a lower vertical surface portion integrally formed on both side end portions of the bottom surface portion and extending upward at right angles to the bottom surface portion, and both longitudinal end portions of the lower vertical surface portion. A lower plate member comprising: a lower fitting portion; and a lower plate member for connection made of a flat plate material connected to the outer surface of one end portion in the longitudinal direction of the bottom surface portion;
A flat upper surface portion, upper vertical surface portions integrally formed downward at both end portions of the upper surface portion at a right angle to the upper surface portion, and the lower portions of both longitudinal ends of the upper vertical surface portion. An upper fitting member having a U-shaped cross-section connected to an outer surface of an upper fitting portion provided in a portion corresponding to the side fitting portion and one end portion in the longitudinal direction of the upper surface portion and the upper vertical surface portion. And an upper plate member provided with
The lower duct member and the upper board member are combined to face each other, and the inner surface of the upper vertical plane portion of the upper plate member is superimposed on the outer surface of the lower vertical plane portion of the lower plate member and assembled. body.   The lower fitting portion is formed of a lower recess formed to protrude inward, and the upper fitting portion is formed to protrude inward from an upper recess that fits with the lower recess. The box for a bus duct according to claim 1, wherein the box is for a bus duct.   The lower fitting portion is formed of an opening, and the upper fitting portion is formed to protrude toward the inside, and is formed of an upper concave portion that is fitted to the opening. The box for bus ducts according to claim 1. An assembly-type bus duct that accommodates a plurality of conductors therein, a flat bottom surface portion, and a lower vertical surface portion integrally formed upward at right angles to the bottom surface portion at both side end portions of the bottom surface portion, The lower side for connection which consists of the lower fitting part provided in the both ends of each longitudinal direction of the said lower vertical surface part, and the flat board | plate material connected to the outer surface of one edge part of the longitudinal direction of the said bottom face part A lower plate member provided with a plate material;
A flat upper surface portion, upper vertical surface portions integrally formed downward at both end portions of the upper surface portion at a right angle to the upper surface portion, and the lower portions of both longitudinal ends of the upper vertical surface portion. An upper fitting member having a U-shaped cross-section connected to an outer surface of an upper fitting portion provided in a portion corresponding to the side fitting portion and one end portion in the longitudinal direction of the upper surface portion and the upper vertical surface portion. And an upper plate member provided with
The lower duct member and the upper board member are combined to face each other, and the inner surface of the upper vertical plane portion of the upper plate member is superimposed on the outer surface of the lower vertical plane portion of the lower plate member and assembled. A prefabricated bus duct characterized by comprising a body.   The connecting portion formed by the connecting lower plate member and the connecting upper plate member combined with one assembling bus duct includes a play portion, and the other side of the connecting lower plate member and the connecting upper plate member 5. A prefabricated bus duct according to claim 4, characterized in that the combined ends of one prefabricated bus duct are connected refractively at a predetermined angle. A flat bottom surface portion, a lower vertical surface portion integrally formed on both side end portions of the bottom surface portion and extending upward at right angles to the bottom surface portion, and both longitudinal end portions of the lower vertical surface portion. A lower plate member comprising: a lower projection formed projecting inward; and a lower plate member for connection made of a flat plate connected to the outer surface of one end of the bottom surface in the longitudinal direction. When,
A flat upper surface portion, upper vertical surface portions integrally formed downward on both side ends of the upper surface portion at a right angle to the upper surface portion, and parallel to the upper surface portion at respective lower end portions of the upper vertical surface portion A flat side portion formed integrally, a side vertical surface portion integrally formed upward in parallel with the upper vertical surface portion at an outer end portion of the flat side portion, and a length of the upper surface portion An upper plate member provided with an upper plate member for connection having a U-shaped cross section connected to the outer surface of one end portion in the direction,
The lower plate member and the upper plate member are combined to face each other, and the flat side portion of the upper plate member is placed on the lower plate member. A box body for a bus duct that is assembled by being overlapped with an inner surface of a vertical portion of the upper plate member for use and an outer surface of a lower vertical surface portion of the lower plate member.   The lower projection functions as a stopper for preventing upward movement of the side vertical surface portion of the upper plate member after the upper plate member is placed on the lower plate member. The box for bus ducts as described in 6. An assembly-type bus duct that accommodates a plurality of conductors therein, a flat bottom surface portion, and a lower vertical surface portion integrally formed upward at right angles to the bottom surface portion at both side end portions of the bottom surface portion, Flat projections provided at both longitudinal ends of the lower vertical surface and projecting inward and connected to the outer surface of one end of the bottom surface in the longitudinal direction. A lower plate member comprising a lower plate material for connection made of a plate material;
A flat upper surface portion, upper vertical surface portions integrally formed downward on both side ends of the upper surface portion at a right angle to the upper surface portion, and parallel to the upper surface portion at respective lower end portions of the upper vertical surface portion A flat side portion formed integrally, a side vertical surface portion integrally formed upward in parallel with the upper vertical surface portion at an outer end portion of the flat side portion, and a length of the upper surface portion An upper plate member provided with an upper plate member for connection having a U-shaped cross section connected to the outer surface of one end portion in the direction,
The lower plate member and the upper plate member are combined to face each other, and the flat side portion of the upper plate member is placed on the lower plate member. An assembly-type bus duct comprising a box body for a bus duct that is assembled by being superimposed on an inner surface of a vertical portion of the upper plate member for use and an outer surface of a lower vertical surface portion of the lower plate member.   The connection portion formed by the combined lower plate material for connection and upper connection plate material for connection includes a play portion, and the end portion is connected to the connection portion so as to be refractable. Assembling bus duct as described.

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