JP2013019111A - Hood box for attaching building structure for aggregated piping/wiring - Google Patents

Abstract

An object of the present invention is to eliminate the need for coking treatment during maintenance or expansion work, and to maintain high waterproofness.
An attachment frame 30 attached to the outside of an opening of a side wall portion of a building for collective piping / wiring, an upper plate 60 attached so that a rear end portion overlaps an upper edge of the attachment frame 30, and an attachment frame Divided into two side plates 40A and 40B that are attached so that the rear end portion overlaps with both side edges, a front plate 70 that is attached to the front portion of the upper plate 60 and both side plates 40A and 40B, and a bottom plate 50 that is attached to both side plates. Further, the upper plate 60 is divided and configured by a plurality of upper plate constituting plates 61 and 62 that overlap in the front-rear direction, and the upper plate 60 overlaps the upper edge of the mounting frame 30 among the plurality of upper plate constituting plates 61 and 62. Without removing the upper plate constituting plate 61 at the back position, the other upper plate constituting plate 62 can be removed.
[Selection] Figure 2

Description

  The present invention relates to a hood box that is attached to the outside of an opening of a side wall of a building for collective piping / wiring.

  In building air conditioning equipment, many outdoor units are installed on the roof of the building, and a pair of refrigerant pipes and a single control cable are used between the indoor units on each floor of the building and the corresponding outdoor units on the roof. Connected. In addition to these pipes, various cables (for power supply and communication) are drawn from the roof to the room.

  Therefore, a hut-like collective piping / wiring structure (commonly referred to as a pigeon hut, hereinafter simply referred to as a building) 1 as shown in FIG. 16 is built on the roof of the building, and the side wall 1a of the building 1 A waterproof hood box 15 that covers the opening is attached to the opening for passing the tube or cable provided in FIG.

  And, for example, the refrigerant pipes and control cables from the indoor units on each floor are joined together in a shaft passing through the building in the height direction and passed through the building 1 on the roof, and further, the side wall 1a Piping and wiring are performed along the rack 2 installed on the roof through the food box 15 from the opening, and connected to each individual outdoor unit (not shown) installed in the vicinity of the rack 2 (reference numeral 3 indicates Rack support). Further, the power cable and the communication cable are also routed between the rooftop and the room so as to pass through the opening of the side wall 1a covered with the hood box 15.

  Thus, the hood box 15 installed on the roof of a building or the like under construction is required to be easily constructed, to easily transport the constituent materials, and to be reliably waterproof.

  The shape required for the food box is a box-type structure having openings for passage of pipes and cables on the back side and the bottom side fixed to the side wall portion 1a. The integrated shape food box is fixed to the side wall 1a as it is, and the weight of the material alone is extremely heavy and it is difficult to transport it to the rooftop of a building. It was impossible, and it had to be transported using stairs.

  Further, since the weight of the food box is heavy, it is extremely inconvenient that it is impossible for one person to attach the food box to the side wall portion 1a, manpower is required, and much time is required for the attachment.

  Moreover, since the attachment part of the food box was attached to the side wall part 1a of the building 1 vertically without a hollow part, there also existed a problem that the waterproof caulking process could not be performed reliably.

  In order to solve these problems, the applicants of the present application have proposed a food box that can be easily transported, can be attached by one person, and can reliably perform a coking process in the following Patent Document 1.

  In the technique of this Patent Document 1, a hood box for attaching to the outside of an opening of a building side wall includes an attachment frame attached to the outside of the opening, a hood main body attached to the attachment frame, and before being attached to the hood main body. The lid and the bottom plate attached to the hood main body are divided and assembled so that the above problem is solved by this characteristic structure.

  Patent Document 1 also proposes a structure in which the hood main body is divided into an upper plate and both side plates. With this divided structure, all members constituting the hood box are substantially plate-shaped and are not bulky. This makes it easier to carry and install.

  Patent Document 2 also discloses a technique for facilitating the attaching operation of the side plate in the hood box having a structure in which the upper plate and the side plate of the hood main body are divided.

  In the technique of Patent Document 2, a plurality of screw holes for screwing the end of the side plate are provided in the mounting frame, one of the screw holes is cut out, and the mounting hole is attached to the end of the side plate. Install the screw with nut in advance in the screw hole at the position corresponding to the cutout screw hole of the frame, and slide the shaft of the nut screw into the cutout screw hole of the mounting frame. By doing so, the side plate is simply fixed to the mounting frame and fixed by screws so that the side plate can be easily attached by one person.

Japanese Patent No. 3213881 JP 2008-127797 A

  In the above-mentioned patent document, the mounting frame includes a frame main body formed by bending a belt-shaped plate having a certain width into a rectangular tube shape having a slight depth in the front-rear direction, and a rear edge plate extending inward from the rear edge of the frame main body. (Rear flange) and a front edge plate (front flange) that extends outward from the front edge of the frame body, and is fixed in a state where the rear edge plate is in contact with the side wall surface of the building (pighouse) Since the rear end of each plate that constitutes the hood body is screwed into the screw hole provided in the front edge plate, the inner space of the frame is between the wall of the building and the front flange. A recessed portion that is recessed in the direction is continuously formed over the entire circumference, and a caulking material is poured into the recessed portion, so that reliable waterproofing can be performed.

  Here, the hood box having the above structure is provided with edge plates extending downward at the front, rear, left, and right edges of the upper plate in order to enhance waterproofness, of which the rear edge plate is the front edge plate of the mounting frame. It is fixed in contact with the back of the. That is, the coking process is performed in a state where the rear edge plate of the upper plate enters the hollow portion as a caulking allowance. In addition, the caulking process for waterproofing is often performed so that it protrudes from the recessed portion for safety reasons, and even if it is an upper plate that does not have an edge plate that enters the recessed portion, the rear edge portion is covered with a caulking material. become.

  However, after the above construction is performed once, it is necessary to remove the upper plate for maintenance and expansion of equipment. However, if the upper plate whose rear end portion is covered with the caulking material is removed as described above, the caulking material will be peeled off, so it is necessary to perform the caulking process again after the maintenance is completed. When the contractor who performed the construction is different from the maintenance contractor, there is a problem that the caulking process is forgotten or the work is moderately performed, and the waterproofness is remarkably lowered.

  An object of the present invention is to provide a food box that solves this problem, eliminates the need for coking processing during maintenance or expansion work, and maintains high waterproofness.

In order to achieve the above object, a food box for mounting a building for collective piping / wiring according to claim 1 of the present invention comprises:
A hood box for mounting outside the opening of the side wall of the building for collecting piping and wiring,
A mounting frame that is attached to the outside of the opening; an upper plate that is attached so that a rear end portion overlaps with an upper edge of the mounting frame; and both side plates that are attached so that a rear end portion overlaps both side edges of the mounting frame; , Divided into a front plate attached to the front portion of the upper plate and the side plates, and a bottom plate attached to the side plates,
Further, the upper plate is divided and configured by a plurality of upper plate constituting plates that overlap in the front-rear direction, and among the plurality of upper plate constituting plates, the upper plate constituting plate that is overlapped with the upper edge of the mounting frame. It is characterized in that it can be removed without removing the upper plate constituting plate.

In addition, the collective piping / wiring structure mounting hood box according to claim 2 of the present invention is the collective piping / wiring structure mounting hood box according to claim 1,
The mounting frame includes a frame main body formed in a rectangular tube shape having a depth in the front-rear direction corresponding to the width obtained by bending a belt-like plate having a constant width along a line perpendicular to the length direction thereof, and the frame main body. A rear edge plate that extends inward from the rear end of the building and is attached to the outside of the opening of the side wall of the building for collective piping and wiring, and extends outward from the front end of the frame body. With a front edge plate mounted and
Along the outer periphery of the frame body, a recess for filling a caulking material is formed between the side wall of the building for collecting piping and wiring and the front edge plate,
Among the upper plate constituting plates, an edge plate is provided on the rear edge of the uppermost plate constituting plate at the innermost position so as to enter the recessed portion and contact the back surface of the front edge plate of the mounting frame. Features.

In addition, the collective piping / wiring structure mounting hood box according to claim 3 of the present invention is the collective piping / wiring structure mounting hood box according to claim 1 or 2,
The plurality of upper plate constituting plates are at a position that is low enough to be separated from the mounting frame, and on the lower surface of the front edge of the upper plate constituting plate that is closer to the mounting frame, the upper plate far from the mounting frame. It is attached in the state where it overlapped so that the upper surface of the rear edge of a component board may contact | connect.

In addition, the collective piping / wiring structure mounting hood box according to claim 4 of the present invention is the collective piping / wiring structure mounting hood box according to any one of claims 1 to 3,
Of the plurality of upper plate constituting plates, the upper plate constituting plate other than the innermost position is a hexagonal column or a plus groove on the head end face with respect to the side plate and the uppermost plate constituting plate at the innermost position. Alternatively, the side plate is fixed by a first-use screw having a high usage frequency in which a minus groove is formed, and the upper plate constituting plate at the innermost position is formed by a second screw having a different shape from that of the first screw. Alternatively, it is fixed to the mounting frame.

  As described above, in the hood box according to the first aspect of the present invention, the upper plate constituting plate at the innermost position is provided even when piping, wiring expansion work or maintenance work is performed after caulking processing is performed on the outer periphery of the mounting frame. Since the other upper plate constituent plates can be removed without removing them, there is no possibility that the waterproof performance will be deteriorated due to peeling of the caulking material in those operations.

  Further, in claim 2 of the present invention, along the outer periphery of the frame main body, a recess for filling the caulking material is configured between the side wall portion and the front edge plate of the building for collecting piping and wiring, Among the upper plate components, the rear edge of the upper plate component plate at the innermost position is provided with an edge plate that enters the recess and contacts the back of the front edge plate of the mounting frame. By performing the caulking process on the recessed portion with the upper plate constituting material attached, high waterproofness between the edge of the upper plate constituting plate and the upper edge of the mounting frame is maintained.

  Further, in claim 3 of the present invention, the plurality of upper plate constituting plates are inclined so as to be lowered as they are separated from the attachment frame, and on the lower surface of the front edge of the upper plate constituting plate closer to the attachment frame, Since it is mounted in a state of being overlapped so that the upper surface of the rear edge of the upper plate that is far from the mounting frame is in contact, the rain flows in the direction away from the mounting frame along the slope, and into the box Make sure to prevent flooding.

  Further, in claim 4 of the present invention, the shape of the second screw for fixing the uppermost plate constituting plate at the innermost position to the mounting frame or the side plate is the frequency of use for fixing the other upper plate constituting plate. Since it is different from the shape of the high first screw, the possibility that maintenance workers etc. will accidentally remove the upper plate constituting the deepest position will be extremely small, and the possibility of peeling of the caulking material will be reduced. I can do it.

Overall view after assembly of an embodiment of the present invention Exploded view of the embodiment The figure for demonstrating the assembly operation of the food box of embodiment The figure for demonstrating the assembly operation of the food box of embodiment The figure for demonstrating the assembly operation of the food box of embodiment The figure for demonstrating the assembly operation of the food box of embodiment The figure for demonstrating the assembly operation of the food box of embodiment The figure for demonstrating the assembly operation of the food box of embodiment The figure for demonstrating the assembly operation of the food box of embodiment The figure for demonstrating the assembly operation of the food box of embodiment The figure for demonstrating the assembly operation of the food box of embodiment The figure for demonstrating the assembly operation of the food box of embodiment The figure which shows the state which removed the front part of the upper board after the assembly of the food box of embodiment. Diagram showing an example using embossing instead of spacers The figure which shows the example which uses a caulking fixed type nut for fixation between upper board composition boards Overall view of conventional food box

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is an overall view of a food box 20 according to an embodiment of the present invention, and FIG. 2 is an exploded view thereof.

  In these drawings, the hood box 20 includes an attachment frame 30 attached to the outside of the opening of the side wall 1a of the building 1, and left and right side plates 40A, 40B, a bottom plate 50, and an upper plate 60 attached to the attachment frame 30. These are assembled into a box shape having openings for allowing passage of tubes and cables to the rear and bottom surfaces.

  The mounting frame 30 includes a frame main body 31 formed into a rectangular cylindrical shape having a slight depth in the front-rear direction corresponding to the width of a belt-like plate having a constant width, which is bent along a line perpendicular to the length direction. A rear edge plate 32 extending inwardly perpendicularly from the frame body 31 over the entire circumference of the four sides at the rear end of the frame body 31, and a vertical edge from the frame body 31 over the entire circumference of the four sides at the front end of the frame body 31. And a front edge plate 33 extending toward the front.

  The upper edge portion 32a, the lower edge portion 32b, the left edge portion 32c, and the right edge portion 32d of the rear edge plate 32 have holes 35 through which anchor bolts (or bolts for connecting to the penetration sleeve) fixed in advance to the side wall portion 1a are passed. Is provided.

  A plurality (three in the figure) for fixing the left and right side plates 40A and 40B by screws are provided in the left side portion 33c and the right side portion 33d of the front edge plate 33 at intervals in the vertical direction. It has been. Of these holes, the center hole 37 is horizontally long and the edge side is notched.

  The laterally symmetrical side plates 40A and 40B have a substantially rectangular shape, a front edge formed shorter than a rear edge, and a laterally trapezoidal base 40a and a base 40a that are inclined so that an upper edge is lowered forward with respect to a lower edge. A rear edge plate 40b extending from the rear edge at a right angle in a direction in which the base inner surface is desired, and a front edge plate 40c extending from the front edge of the base portion 40a in a direction at a right angle in a direction desired to the base inner surface; The upper edge plate 40d extends from the edge at a right angle in a direction in which the base inner surface is desired, and the lower edge plate 40e extends from the lower edge of the base portion 40a in a direction at a right angle in the desired direction. The upper edge plate 40d is inclined so as to become lower from the rear side toward the front side along the inclination of the upper edge of the base portion 40a. A slit 45 is provided between the lower end of the front edge plate 40c and the front end of the lower edge plate 40e. The slit 45 opens with a size slightly larger than the height of a rear edge plate 50b described later.

  The rear edge plate 40b of the side plates 40A and 40B is provided with a plurality of screw holes 41 at positions corresponding to the holes 36 and 37 of the mounting frame 30, and the front plate 70 is screwed to the front edge plate 40c. A plurality of holes 42 for fixing are provided, a plurality of holes 43 for fixing the upper plate 60 with screws are provided in the upper edge plate 40d, and a bottom plate 50 is screwed to the lower edge plate 40e. Therefore, a plurality of holes 44 for fixing are provided.

  The bottom plate 50 includes a base 50a formed in a concave shape with a front center notch, a rear edge plate 50b extending upward from the rear end of the base 50a, and a socket extending downward from the notched edge of the base 50a. It is comprised by the board 50c-50e. A plurality of holes 51 for screwing and fixing to the lower edge plate 40e of the side plates 40A and 40B are provided on both sides of the base 50.

  The upper plate 60 is divided and configured by a plurality (two in this case) of upper plate constituting plates 61 and 65. The upper plate constituting plate 61 on the back side (upstream side) closer to the mounting frame 30 includes a horizontally long rectangular base 61a, a rear edge plate 61b extending downward from the rear edge, and a lower side from the left and right side edges of the base 61a. The side edge plates 61c and 61d extending to the bottom are formed in a thin box shape having an opening on the lower surface side and the front surface side. On both side edges of the base portion 61, holes 62 for screwing and fixing to the side plates 40A and 40B are provided, and on the front edge, a plurality of holes 63 for screwing and fixing to the upper plate constituting plate 65 are provided. . Since the upper plate constituting plate 61 is screwed to the upper edge plate 40d of the side plates 40A and 40B with a spacer 64 slightly thicker than the plate thickness of the upper plate constituting plate 65 interposed therebetween, the upper edge plate of the side plates 40A and 40B is secured. It is in a state of slightly floating from 40d, and is fixed so that the tip of the downstream upper plate constituting plate 65 is inserted into the gap.

  The downstream upper plate constituting plate 65 includes a rectangular base portion 65a, side edge plates 65b and 65c extending downward from the left and right side edges, and a front edge plate 65d extending downward from the front end of the base portion 65a. And it is formed in the thin box shape by which the lower surface side was opened. The horizontal width of the upper plate constituting plate 65 is set to be slightly smaller than the inner dimension between the left and right side edge plates 61c and 61d of the upstream upper plate constituting plate 61. The plate constituting plate 61 can be inserted between the side edge plates 61c and 61d. At the positions corresponding to the holes 63 of the upper plate constituting plate 61 on the front edge of the upper plate constituting plate 65, screw groove holes 66 for screwing and connecting the upper plate constituting plates to each other are provided. Are provided with holes 67 for fixing to the side plates 40A, 40B with screws. The thread groove hole 66 may be formed by forming a sleeve extending downward by press working and providing a thread groove on the inner periphery thereof, or by fixing the nut from the lower surface side by welding or caulking as described later.

  The front plate 70 has a horizontally long rectangular base portion 70a, an upper edge plate 70b extending forward from the upper edge thereof, a lower edge plate 70c extending rearward from the lower edge of the base portion 70a, and extended rearward from the left and right side edges. It has side edge plates 70c and 70d, and holes 71 for screwing and fixing to the side plates 40A and 40B are provided on both side edges.

Next, a method for assembling the food box will be described.
First, as shown in FIG. 3, the attachment frame 30 is fixed so as to surround the opening 1b of the side wall 1a of the building.

  For example, anchor bolts are embedded in advance at the positions of the holes 35 in the rear edge plate 32 of the mounting frame 30 at the periphery of the opening 1b in advance, and the anchor bolts are inserted into the holes 35 so that the mounting frame 30 The rear edge plate 32 is brought into close contact with the side wall portion 1a, and the bolt 5 is fastened to the anchor bolt. In some cases, the rear edge plate of the mounting frame 30 may be bolted to a through sleeve fixed in advance in a larger opening.

  With the mounting frame 30 fixed to the wall surface in this way, as shown in FIG. 4, the bolt 6 is inserted from the inside into the hole 41 at the center of the rear edge plate 40b of one side plate 40B, and the bolt protrudes backward. 6, the plate nut 7 is loosely screwed, and the rear edge plate 40 b is moved so as to overlap the back side of the right side portion 33 d of the front edge plate 33 of the mounting frame 30.

  At this time, as shown in FIG. 5, with the head of the bolt 6 pulled forward, the shaft portion is inserted into the notched hole 37 and the bolt 6 is temporarily tightened. As shown in FIG. 6, the side plate 40 </ b> B is temporarily fixed to the mounting frame 30 by this operation, and does not fall off even if it is not supported. Thereafter, the remaining holes 41 are fixed with bolts and plate nuts.

  By performing this operation on the other side plate 40A, the left and right side plates 40A and 40B can be fixed to the mounting frame 30 as shown in FIG.

  Then, as shown in FIG. 7, the bottom plate 50 is inserted into the slits 45 of the side plates 40A and 40B from the rear edge plate 50b side and pushed to the back, so that the holes 51 on both sides of the base 50a are the lower edges of the side plates 40A and 40B. By fixing the bolts in accordance with the holes 44 of the plate 40e, the bottom plate 50 can be fixed as shown in FIG. The bolt fixing is performed by attaching a clip nut (not shown) made of a bi-folded spring plate having a hole that can be screwed to the bolt so as to sandwich the lower edge plate 40e in advance. Tighten the bolt.

  In the state of FIG. 8, necessary piping and wiring work is performed, and as shown in FIG. 9, the pipe / cable body 10 composed of the refrigerant pipe and various cables is pulled out from the opening 1 b and is pulled out from the opening of the bottom plate 50. Piping and wiring along The refrigerant pipe-related tube / cable body 10 is pulled out from the rack 2 and connected to each individual outdoor unit (not shown) installed in the vicinity thereof. Further, other cables are also drawn out from the rack 2 at appropriate positions.

  After this piping and wiring work, as shown in FIG. 9, the front plate 70 is bolted to the front edge plates of the side plates 40A and 40B (this fixing operation also uses clip nuts as described above).

  Next, as shown in FIG. 10, the back side upper plate constituting plate 61 is sandwiched between the spacers 64 (the spacer 64 may be bonded and fixed to the upper plate constituting plate 61 in advance), and the side plate 40A, It fixes to the back side upper part of 40B using the volt | bolt 8 and the said clip nut. However, the bolt 8 used for fixing is a head having a different head shape from the bolt 6 used for other mounting.

  For example, the bolt 6 that is normally used has a hexagonal column at the head and is provided with a plus groove (may be a minus groove) on the end face. Tightening can be done with the plus or minus screwdriver bit or hexagon box wrench used. On the other hand, the bolt 8 for fixing the upper-side plate constituting plate 61 to the side plates 40A and 40B is a low versatility bolt (second screw), for example, a head having a cylinder and a hexagonal hole on the end face. Is used, and hexagon socket head cap screws that cannot be tightened without using a hexagon wrench are used. Such hexagon stick wrench bolts are used very often for outdoor piping and wiring work, and maintenance workers do not unnecessarily remove them with the same feeling as other general bolts. Peeling can be prevented. As the bolt 8 (second screw), in addition to the head-shaped outer cylinder and the bolt with a hexagonal hole, the head has a cylindrical or semi-spherical shape, and a star-shaped groove, an asymmetric groove, or the like is formed on the end face. It is also possible to use one that is provided and that can be tightened only by a dedicated screwdriver other than plus or minus.

  After the upstream upper plate constituting plate 61 is fixed to the side plates 40A and 40B in this way, the downstream upper plate constituting plate 65 is replaced with the rear edge and the side edge plate of the base portion 65a as shown in FIG. The rear edges of 65b and 65c are inserted so as to enter the gap between the front edge of the base portion 61a of the upper plate constituting plate 61 and the side edge plates 61c and 61d and the side plates 40A and 40B. Tighten with bolts 6 in accordance with the holes 63 of the plate constituting plate 61, and also align the holes 67 of the upper plate constituting plate 65 with the holes 43 of the side plates 40A, 40B and fix them with the bolts 6 (using the clip nut). This completes the assembly of the hood box 20 as shown in FIGS.

  And as shown in FIG. 12, high waterproofness is acquired by performing a caulking process with respect to the hollow 80 formed in the outer periphery of the attachment frame 30. FIG. Further, the two upper plate constituting plates 61 and 65 fixed to the both side plates 40A and 40B which are inclined so that the upper edge is lowered toward the front are inclined so as to become lower as they are separated from the mounting frame 30. In addition, since the upper surface of the rear edge of the upper plate constituting plate 65 far from the mounting frame is in contact with the lower surface of the front edge of the upper plate constituting plate 61 closer to the mounting frame 30, the upper plate Since the rain that has fallen on the bottom flows in a direction away from the mounting frame 30 along the inclination, the deterioration of waterproofness due to the division of the upper plate does not occur.

  When it is desired to open the upper surface side of the hood box 20 for maintenance work or the like, the bolt 6 connecting the upper plate constituting plates 61 and 65 and the upper plate constituting plate 65 on the downstream side are connected to the side plates 40A and 40B. It can be removed by removing the bolt 6 fixed to the front and pulling it forward. Even in this case, as shown in FIG. 13, since the upstream upper plate constituting plate 61 remains fixed, the caulking material poured so as to cover the rear end portion is not peeled off, and it is not necessary to repeat the coking process. It becomes.

  In the above embodiment, the spacer 64 is used to secure the insertion space for the downstream upper plate constituting plate 65. However, as shown in FIG. 14, the upstream upper plate constituting plate 61 is embossed. For example, a recessed portion 64 ′ that is recessed downward may be provided to secure an insertion space for the downstream upper plate constituting plate 65. Further, although not shown, the front edge of the upstream upper plate constituting plate 61 is pressed so as to slightly bulge upward and laterally, and the downstream upper space is formed in the space formed inside by the bulging. The rear edge portion of the plate constituting plate 65 may be inserted.

  Further, as described above, the thread groove hole 66 necessary for connecting the upper plate constituting plates 61 and 65 is not limited to the sleeve processing and the nut welding stop, for example, as shown in FIG. It can be formed by a nut 68 that is crimped to the plate 65. The nut 68 is crushed so that the cylindrical portion 68c between the flange 68a at the upper end and the screw hole portion 68b at the lower end is opened outward, and the lower hole of the upper plate constituting plate 65 is formed between the nut 68 and the flange 68a. It has a structure in which the periphery is sandwiched and fixed, and is used when a bolt hole is provided in the wall material from one side. In this case, since the diameter of the hole 63 of the upper plate constituting plate 61 needs to be larger than the outer diameter of the flange 68a of the nut 68 in order to bring the upper plate constituting plates 61 and 65 into close contact with each other, the bolt 6 has a wide washer 9. Insert and tighten.

  The present invention is not limited to these illustrated examples. The shapes, dimensions, etc. of the mounting frame 30, the side plates 40A and 40B, the bottom plate 50, the upper plate constituting plates 61 and 65, and the front plate 70 are the same as those of the present invention. It can be freely changed without changing the gist.

  Moreover, in the said embodiment, although the upper board 60 was the structure divided | segmented by two upper-plate constituent plates 61 and 65 of front and back, even if it is a structure divided | segmented in the front-back direction by more upper-plate constituent plates, Good.

  DESCRIPTION OF SYMBOLS 1 ... Building for collective piping and wiring, 1a ... Side wall part, 1b ... Opening part, 20 ... Hood box, 30 ... Mounting frame, 31 ... Frame main body, 32 ... Rear edge plate, 33 ... ... front edge plate, 40A, 40B ... side plate, 50 ... bottom plate, 60 ... top plate, 61, 65 ... top plate component plate, 64 ... spacer, 70 ... front plate

Claims (4)

A hood box for mounting outside the opening of the side wall of the building for collecting piping and wiring,
A mounting frame that is attached to the outside of the opening; an upper plate that is attached so that a rear end portion overlaps with an upper edge of the mounting frame; and both side plates that are attached so that a rear end portion overlaps both side edges of the mounting frame; A front lid attached to the front part of the upper plate and the side plates, and a bottom plate attached to the side plates,
Further, the upper plate is divided and configured by a plurality of upper plate constituting plates that overlap in the front-rear direction, and among the plurality of upper plate constituting plates, the upper plate constituting plate that is overlapped with the upper edge of the mounting frame. A hood box for mounting a building for collective piping / wiring, characterized in that it can be removed without removing the upper plate. The mounting frame includes a frame main body formed in a rectangular tube shape having a depth in the front-rear direction corresponding to the width obtained by bending a belt-like plate having a constant width along a line perpendicular to the length direction thereof, and the frame main body. A rear edge plate that extends inward from the rear end of the building and is attached to the outside of the opening of the side wall of the building for collective piping and wiring, and extends outward from the front end of the frame body. With a front edge plate mounted and
Along the outer periphery of the frame body, a recess for filling a caulking material is formed between the side wall of the building for collecting piping and wiring and the front edge plate,
Among the upper plate constituting plates, an edge plate is provided on the rear edge of the uppermost plate constituting plate at the innermost position so as to enter the recessed portion and contact the back surface of the front edge plate of the mounting frame. The food box for mounting a building for collective piping and wiring according to claim 1 characterized by the above-mentioned.   The plurality of upper plate constituting plates are at a position that is low enough to be separated from the mounting frame, and on the lower surface of the front edge of the upper plate constituting plate that is closer to the mounting frame, the upper plate far from the mounting frame. 3. The collective piping / wiring structure mounting hood box according to claim 1 or 2, wherein the hood box is mounted in a state of being overlapped so that the upper surfaces of the rear edges of the component plates are in contact with each other.   Of the plurality of upper plate constituting plates, the upper plate constituting plate other than the innermost position is a hexagonal column or a plus groove on the head end face with respect to the side plate and the uppermost plate constituting plate at the innermost position. Alternatively, the side plate is fixed by a first-use screw having a high usage frequency in which a minus groove is formed, and the upper plate constituting plate at the innermost position is formed by a second screw having a different shape from that of the first screw. Or the food box for building installation for collective piping and wiring in any one of Claims 1-3 fixed to the said attachment frame.

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