JP6388742B1 - Construction method of frame structure and air conditioner using the same - Google Patents

Abstract

[PROBLEMS] To provide an installation structure of an air conditioner having excellent earthquake resistance, and when installing the air conditioner on a ceiling structure, the air conditioner and the refrigerant pipe can be integrally installed at a construction site. Improve work efficiency. A frame structure 1 that supports an air conditioner 100 is configured by arranging a plurality of frame members 10 in a rectangular shape, and includes an upper frame 2 that can be fixed to a ceiling structure, and a plurality of frame members 10. A lower frame 3 configured to be arranged in a rectangular shape and supporting the air conditioner 100, and a plurality of support columns 13 having an upper end connected to the upper frame 2 and a lower end connected to the lower frame 3. It is the structure which provided the open space 4 in which the refrigerant | coolant piping 70 connected to the air conditioner 100 can be arrange | positioned between the upper frame body 2 and the lower frame body 3 is provided. [Selection] Figure 8

Description

  The present invention relates to a frame structure for installation in a ceiling structure such as a ceiling slab, and more particularly to a frame structure used when constructing a ceiling-installed type air conditioner and a method of constructing an air conditioner using the frame structure. .

  2. Description of the Related Art Conventionally, ceiling installation type air conditioners are supported in a state where hanging bolts hanging from a ceiling structure such as a ceiling slab are attached to four corners and suspended from the ceiling structure. However, since the suspension bolt has a small diameter of about 10 mm, the rigidity is low. Therefore, when a large-scale earthquake occurs, the air conditioner supported by the suspension bolt vibrates greatly. In order to prevent this, conventionally, a method of suppressing vibration of the air conditioner by arranging a pair of brace bolts so as to intersect each other between two adjacent suspension bolts (for example, Patent Documents). 1).

  However, the work of disposing a pair of brace bolts between two suspension bolts is a work in a high place with the air conditioner supported by the suspension bolts, so the work efficiency is poor. There's a problem. A total of eight brace bolts are arranged on the four suspension bolts that support the four corners of the air conditioner. Therefore, even if refrigerant piping or the like is arranged between two suspension bolts adjacent to each other, the brace bolt that crosses in the oblique direction is in the way, so that it is practically impossible in work at high places. Therefore, the upper part of the air conditioner is substantially a dead space in a state where the air conditioner is supported by the suspension bolt.

  On the other hand, in order to reduce the amount of work at the construction site, a construction method in which the air conditioner is unitized in advance at a factory other than the construction site has been proposed (for example, Patent Document 2). In this conventional construction method, various members attached to the air conditioner are assembled in advance into a unit made up of a horizontal frame material and a vertical frame material in a factory, and the unitized frame is brought into the construction site. It is fixed to the ceiling structure.

  However, in the construction method as described above, since the number of mounts that can be loaded on the vehicle is reduced, there is a problem that the transport efficiency when transporting the unitized mounts from the factory to the construction site is significantly reduced. Moreover, in the said prior art, arrange | positioning refrigerant | coolant piping etc. on the upper part of the air conditioner integrated in the mount is not assumed. Therefore, in the above prior art, when the refrigerant pipe or the like is arranged on the upper part of the air conditioner incorporated in the gantry, a space for arranging the refrigerant pipe or the like on the upper part of the gantry is formed by extending the suspension bolt. It becomes. Then, in the event of a large-scale earthquake, the pedestal supported by the suspension bolts will vibrate greatly. As a result, a state in which a pair of brace bolts cross between the two suspension bolts adjacent to each other as described above. It becomes necessary to arrange in, and the upper space of the mount cannot be used.

JP 2014-125812 A JP 2010-249401 A

  As described above, in the conventional air conditioner construction method, when the air conditioner is installed in a suspended state from the ceiling structure, the upper space of the air conditioner is effectively utilized as a space for arranging refrigerant pipes and the like. I can't. For this reason, conventionally, a design has been made in which the refrigerant pipe is installed avoiding the installation position of the air conditioner. FIG. 13 is a diagram illustrating an example of an installation form of a conventional refrigerant pipe. In FIG. 13, the refrigerant | coolant piping 170 connected to an outdoor unit has shown the example connected to the six air conditioners (indoor unit) 151-156. For example, as shown in FIG. 13, the refrigerant pipe 170 is installed between the three air conditioners 151, 153, 155 and the other three air conditioners 152, 154, 156, and the branch portions 171- 176 to the air conditioners 151 to 156. At the construction site, the refrigerant pipe 170 is installed on the ceiling structure while attaching the branch portions 171 to 176 to appropriate positions of the refrigerant pipe 170 based on such a pipe configuration. The refrigerant pipe 170 generally has a downstream copper pipe diameter that decreases each time it passes through the branching portion 171, and it is desirable that the refrigerant pipe 170 have a copper pipe diameter that corresponds to the number of downstream air conditioners. It is.

  However, the operation of installing the refrigerant pipe 170 while attaching the branch portions 171 to 176 at the construction site is quite complicated and the work efficiency is poor. In particular, the operation of attaching the branching portion is a time-consuming operation because there are many places where brazing is performed and an appropriate copper pipe diameter must be connected to the downstream side.

  Moreover, the refrigerant | coolant piping 170 needs to coat | cover the outer side of a copper pipe with a heat insulating material. Therefore, after attaching the branch parts 171 to 175 to the refrigerant pipe 170, an operation of covering the branch parts 171 to 175 with a heat insulating material must be performed. However, since the shapes of the branch portions 171 to 175 are complicated, it takes time to cover the heat insulating material.

  Furthermore, in the case where there are building beams or other structures at the positions of the branch portions 171 to 175 shown in FIG. 13, it is necessary to appropriately change the installation location of the branch portions 171 to 175 at the construction site. It becomes. Therefore, for the construction of the refrigerant pipe 170, a worker who is skilled in installing the branching portion is indispensable, which causes an increase in work cost.

  On the other hand, if the straight pipes (single pipes) having the same diameter are simply connected at the time of construction of the refrigerant pipe, the work can be performed efficiently.

  Therefore, the present invention has been made to solve the above problems, and is excellent in earthquake resistance, and when the air conditioner is installed in the ceiling structure, the air conditioner and the refrigerant pipe are integrally constructed. An object of the present invention is to provide a frame structure that can be used, and to provide a construction method for an air conditioner using the frame structure.

In order to achieve the above object, first, the present invention is a frame structure, which is configured by arranging a plurality of frame materials in a rectangular shape, and can be fixed to a ceiling structure, and a plurality of frames. is constructed by placing the timber in a rectangular shape, and a lower frame member which supports the air conditioner, connected upper end to the upper frame, and a plurality of struts having a lower end connected to the lower frame, the A refrigerant pipe disposed in an open space between the upper frame and the lower frame and connected to the air conditioner. The refrigerant pipe includes at least one branch portion and is connected to the outdoor unit. To the first connection part connected to the upstream pipe, the second connection part connected to the air conditioner supported by the lower frame, and the downstream pipe connected to the other air conditioner And a third connection portion to be connected .

  According to such a frame structure, when the air conditioner is installed on the ceiling structure, the air conditioner and the refrigerant pipe can be integrally constructed. .

  Second, the present invention provides the frame structure having the first configuration, wherein the plurality of frame members constituting the lower frame have slits formed along a longitudinal direction, and the slits are formed in the slits. The air conditioner is supported by a support bolt to be attached.

  According to such a frame structure, the position of the support bolt can be moved along the longitudinal direction of the slit, and the position of the air conditioner can be finely adjusted.

  Third, the present invention provides the frame structure having the first or second configuration, wherein the plurality of frame members constituting the upper frame have slits formed along a longitudinal direction, The refrigerant pipe is supported in a suspended state in the open space by a suspension band attached to the slit.

  According to such a frame structure, the position of the suspension band can be moved along the longitudinal direction of the slit, and the position of the refrigerant pipe can be finely adjusted.

  4thly, this invention is a frame structure which has the structure in any one of the said 1st thru | or 3rd, It is further provided with the reinforcement member which connects two mutually adjacent support | pillars among these several support | pillars. This is a characteristic configuration.

  According to such a frame structure, the seismic performance of the frame structure can be further improved.

  Fifth, according to the present invention, in the frame structure having any one of the first to fourth configurations, the plurality of frame materials constituting the upper frame and the lower frame are made of aluminum. It is the structure characterized by these.

  According to such a frame structure, since the frame material becomes light, work efficiency at the construction site can be improved.

Sixth, the present invention is configured by arranging a plurality of frame members in a rectangular shape, configured by arranging an upper frame that can be fixed to a ceiling structure, and a plurality of frame materials in a rectangular shape, and an air conditioner A lower frame that supports the upper frame, and a plurality of support columns having an upper end connected to the upper frame and a lower end connected to the lower frame, and between the upper frame and the lower frame And an air conditioner construction method using a frame structure provided with an open space in which a refrigerant pipe connected to the air conditioner can be arranged , and a plurality of the upper frame and the lower frame A frame material, a step of bringing the plurality of struts into a construction site, a step of assembling the plurality of frame materials and the plurality of struts at the construction site, and creating the frame structure, and the lower frame Remove the air conditioner from your body Attaching a refrigerant pipe prepared in advance to correspond to an installation position of the air conditioner in the open space, attaching the refrigerant pipe to the upper frame, and the frame structure. A step of lifting the frame structure to a position near the ceiling structure in a state where the air conditioner and the refrigerant pipe are assembled to each other, and fixing the upper frame to a suspension bolt hanging from the ceiling structure. This is a characteristic configuration.

  Seventh, the present invention is a construction method of an air conditioner having the sixth configuration, wherein the refrigerant pipe is provided with at least one branch portion in advance.

  According to the present invention, it is possible to realize an installation state of an air conditioner having excellent earthquake resistance, and when installing the air conditioner on a ceiling structure, the air conditioner and the refrigerant pipe are integrally installed. Therefore, the working efficiency can be remarkably improved.

It is a perspective view which shows the structural example of a frame structure. It is a figure which shows the structural example of a frame material. It is a figure which shows the example of a connection of the frame material which comprises the outer frame of an upper frame. It is a figure which shows the structural example of an orthogonal coupling metal fitting. It is a figure which shows the structural example of a T-shaped coupling metal fitting. It is a figure which shows the example which attached the air conditioner with respect to the lower frame of a frame structure. It is a figure which shows one structural example of the refrigerant | coolant piping arrange | positioned in the open space of a frame structure. It is a figure which shows the example which installed refrigerant | coolant piping in the open space of the frame structure to which the air conditioner was attached. It is a figure which shows the state which lifted the frame structure using the lift apparatus. It is a figure which shows the state in which the frame structure was attached to the ceiling structure. It is a figure which shows an example of the installation form of refrigerant | coolant piping. It is a figure which shows the structural example of the frame structure which provided the reinforcement member between the some support | pillars. It is a figure which shows an example of the installation form of the conventional refrigerant | coolant piping.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings. In addition, in each drawing referred to below, the same code | symbol is attached | subjected to the mutually common member, and the overlapping description about them is abbreviate | omitted.

  FIG. 1 is a perspective view showing a configuration example of a frame structure 1 according to an embodiment of the present invention. The frame structure 1 includes an upper frame 2 fixed to a ceiling structure such as a ceiling slab, and a lower frame 3 that supports an air conditioner. The frame structure 1 includes a plurality of upper frames 2 and lower frames 3. It has the structure connected with the support | pillar 13 of.

  The upper frame 2 is a frame configured by arranging a plurality of frame members 10 in a rectangular shape. In this embodiment, the case where the upper frame 2 is comprised by the six frame materials 10a-10f is illustrated. That is, the upper frame body 2 of the present embodiment has a configuration in which the outer frame is configured by the four frame members 10a, 10b, 10c, and 10d, and the two frame members 10e and 10f are disposed inside the outer frame. ing. L-shaped metal fittings 11 are disposed at both ends of the four frame members 10a, 10b, 10c, and 10d constituting the outer frame. The L-shaped bracket 11 is a bracket for connecting the ends of two adjacent frame members at a right angle. Therefore, the outer frame becomes a square or a rectangle by the four frame members 10a, 10b, 10c, and 10d. Note that the metal fitting for connecting the four frame members 10a, 10b, 10c, and 10d is not necessarily limited to the L-shaped metal fitting 11, and may be an orthogonal connection metal fitting described later. However, if the L-shaped bracket 11 is used, there is an advantage that the four frame members 10a, 10b, 10c, and 10d constituting the outer frame can be arranged in substantially the same plane.

  The two frame members 10e and 10f arranged inside the outer frame are arranged in parallel with the two frame members 10a and 10c constituting the outer frame, and both ends are connected to the frame members 10b and 10d, respectively. . At this time, both end portions of the two frame members 10e and 10f are connected to the lower surface side of the frame members 10b and 10d via the orthogonal connection fitting 12. Accordingly, the outer frame is disposed on the upper surface side of the two frame members 10e and 10f, and the outer frame can be attached to the ceiling structure in a state where the outer frame is in contact with or close to the ceiling structure. However, the two frame members 10e and 10f are not necessarily limited to those connected to the lower surface side of the frame materials 10b and 10d, and may be connected to the upper surface side.

  As described above, the upper frame 2 has a plurality of rectangular elements formed by arranging the two frame members 10e and 10f inside the outer frame constituted by the four frame members 10a, 10b, 10c and 10d. It becomes the frame which was provided. However, the upper frame 2 is not necessarily limited to one having a plurality of rectangular elements, and may be one having only one rectangular element. That is, the upper frame 2 may be configured by at least four frame members 10.

  Similar to the upper frame 2, the lower frame 3 is a frame configured by arranging a plurality of frame members 10 in a rectangular shape. In this embodiment, the case where the lower frame 3 is comprised by the rectangular shape by the four frame materials 10g-10j is illustrated. The lower frame 3 is a frame that is installed below the upper frame 2. Therefore, the lower frame 3 is parallel to the two frame members 10e and 10f that are parallel to each other out of the plurality of frame members 10a to 10f constituting the upper frame 2, and the two frame members 10e, Two frame members 10g and 10h having an installation interval equal to the installation interval of 10f are provided. In the lower frame 3, frame materials 10i and 10j are connected to both ends of the two frame materials 10g and 10h. The frame members 10i and 10j are arranged in the vicinity of both ends of the frame members 10g and 10h so as to be orthogonal to the frame members 10g and 10h, and are connected to the lower surface side of the frame members 10g and 10h via the orthogonal connecting fitting 12. The The frame materials 10i and 10j may be connected to the upper surface side of the frame materials 10g and 10h. Thus, the lower frame 3 is configured as a square or rectangular frame by assembling the four frame members 10g, 10h, 10i, and 10j.

  The plurality of support columns 13 are, for example, pipe-shaped or angle-shaped lightweight columns obtained by extrusion molding of aluminum, and the cross-sectional shape is formed in a substantially square shape. Such struts 13 have a characteristic that they are less likely to bend and deform even when an earthquake occurs because they have a larger outer size and higher rigidity than suspension bolts. In addition, the cross-sectional shape of the support | pillar 13 is not necessarily restricted to a rectangle, A polygonal column may be sufficient and a cylinder may be sufficient. Moreover, the support | pillar 13 may be comprised with aluminum lip groove steel, light groove steel, etc. As shown in FIG.

  Such a support | pillar 13 is a column member which connects the upper frame body 2 and the lower frame body 3 in the state which left the predetermined space | interval in the perpendicular direction (Z direction). In the present embodiment, four support columns 13a, 13b, 13c, and 13d are arranged on the frame structure 1. These four struts 13a, 13b, 13c, 13d are arranged between the frame members 10e, 10f of the upper frame 2 and the frame members 10g, 10h of the lower frame 3, which are installed in parallel and at equal intervals. Placed in. More specifically, the two support columns 13a and 13b have lower ends connected to the frame material 10g of the lower frame 3 via the T-shaped connecting bracket 14, and upper ends connected to the upper portion via the T-shaped connecting bracket 14. It is connected to the frame material 10e of the frame 2. The other two support columns 13 c and 13 d have lower ends connected to the frame material 10 h of the lower frame 3 via the T-shaped connecting bracket 14 and upper ends connected to the upper frame via the T-shaped connecting bracket 14. 2 is connected to the frame material 10f.

  FIG. 2 is a diagram illustrating a configuration example of the frame material 10. As shown in FIG. 2 (a), the frame material 10 has a configuration in which the flat plate portions of a pair of shape steels 21 and 22 such as lip groove steel or light groove steel are connected to each other at a predetermined interval. is there. Of the plurality of frame members 10, except for the four frame members 10a, 10b, 10c, and 10d that constitute the outer frame of the upper frame 2, the other frame members 10e to 10j are shown in FIG. Are linked together. That is, as shown in FIG. 2B, the frame members 10e to 10j have holes 21a, 21b, 22a, 22b through which the bolts 25 are inserted at both ends of a pair of structural steels 21, 22 having the same length. The bolts 25 are inserted into the holes 21a, 21b, 22a, and 22b, and the nuts 26 are fastened to the ends of the bolts 25, so that the pair of structural steels 21 and 22 are connected. At this time, a slit 23 having a predetermined interval is formed between the structural steels 21 and 22 by inserting a cylindrical spacer 24 into the shaft portion of the bolt 25 between the structural steels 21 and 22. The space | interval of the slit 23 is a space | interval which can insert the suspending bolt suspended from ceiling structures, such as a ceiling slab, and a volt | bolt substantially the same diameter as a suspension bolt. In the upper frame body 2 and the lower frame body 3, the frame members 10e to 10j are assembled in a state in which the slits 23 are directed in the vertical direction. Therefore, the frame members 10e to 10j can be attached by inserting a suspension bolt or the like at an arbitrary position of the slit 23 extending from one end to the other end.

  On the other hand, the four frame members 10a, 10b, 10c, and 10d constituting the outer frame of the upper frame 2 are connected as shown in FIG. FIG. 3 is a diagram showing an example of connection of four frame members 10a, 10b, 10c, and 10d that constitute the outer frame of the upper frame 2, and shows an example of connection between the frame members 10a and 10b as an example. . As shown in FIG. 3, the frame members 10a and 10b have holes 21a and 22a through which bolts 25 are inserted at both ends of a pair of shaped steels 21 and 22 having the same length. A bolt 25 is inserted into 22 a and a nut 26 is fastened to the tip of the bolt 25, thereby connecting the pair of structural steels 21 and 22. At this time, one end side of the L-shaped metal fitting 11 is inserted between the steel shapes 21 and 22 constituting the frame material 10a, and the other end side of the L-shaped metal fitting 11 is further inserted between the steel shapes 21 and 22 constituting the frame material 10b. Inserted. In the L-shaped metal fitting 11, a hole 11 a into which a bolt 25 can be inserted is formed in two flat plate portions that are perpendicular to each other. By inserting the bolt 25 through the hole 11 a, It is fixed in a sandwiched state. The thickness of the two flat plate portions of the L-shaped metal fitting 11 is the same as the thickness dimension of the spacer 24 described above. Therefore, the frame members 10a and 10b are formed by sandwiching the flat plate portion of the L-shaped metal fitting 11 between the section steels 21 and 22, so that the suspension bolts or bolts having substantially the same diameter as the suspension bolts are sandwiched between the section steels 21 and 22. Are formed at predetermined intervals. Thus, the frame members 10a to 10d are fixed in the same plane by being fixed in a state in which the flat plate portion of the L-shaped metal fitting 11 is sandwiched between the shape steels 21 and 22. Further, when the plurality of frame members 10a to 10d are assembled using the L-shaped metal fitting 11, the slits 23 of the respective frame members 10a to 10d are in a state of being directed in the vertical direction. Therefore, each frame member 10a to 10d can be attached by inserting a suspension bolt or the like at an arbitrary position of the slit 23 extending from one end to the other end.

  The frame material 10 configured as described above is configured using, for example, aluminum shaped steels 21 and 22. Since the aluminum frame member 10 is lightweight, it has excellent work efficiency.

  FIG. 4 is a diagram illustrating a configuration example of the orthogonal connection fitting 12 that connects two frame members 10 in an orthogonal state. FIG. 4 shows a connection example of the frame members 10h and 10i as an example. The orthogonal connecting fitting 12 is a fitting that connects the two frame members 10h and 10i in a state in which the two frame members 10h and 10i are overlapped with each other. The orthogonal connecting fitting 12 includes an orthogonal holding fitting 32 arranged between the two frame members 10h and 10i, and a first fitting 31 arranged on the opposite side of the orthogonal holding fitting 32 on the outer peripheral surface of one frame member 10h. And a second metal fitting 33 disposed on the opposite side of the orthogonal holding metal fitting 32 on the outer peripheral surface of the other frame member 10i.

  The orthogonal holding fitting 32 is different from a rectangular flat plate portion 32a, a pair of first engagement portions 32b and 32c bent at a right angle from the flat plate portion 32a, and the flat plate portion 32a to the first engagement portions 32b and 32c. It has a pair of 2nd engaging part 32d and 32e bent at right angles toward the direction. The flat plate portion 32a is disposed between the two frame members 10h and 10i. A hole 32h through which the bolt 34 can be inserted is provided at the center of the flat plate portion 32a.

  The first engaging portions 32b and 32c are provided in a state of being erected along a side surface of the frame member 10h from a pair of opposite sides of the flat plate portion 32a. The first engaging portions 32b and 32c are erected from the flat plate portion 32a at a distance that is the same as or slightly larger than the width of the frame member 10h and that are parallel to each other. Therefore, as shown in FIG. 4, when the lower surface of the frame material 10h is in contact with the upper surface side of the flat plate portion 32a, the first engagement portions 32b and 32c Join the flange part).

  Further, the second engaging portions 32d and 32e are connected to the first engaging portions 32b and 32c so as to be along the side surface of the frame member 10i from a pair of sides different from the side where the first engaging portions 32b and 32c are provided. Is provided in a standing state on the opposite side. These second engaging portions 32d and 32e are erected from the flat plate portion 32a in a state that is the same as or slightly larger than the width of the frame member 10i and parallel to each other. Therefore, as shown in FIG. 4, when the upper surface of the frame member 10i is in contact with the lower surface side of the flat plate portion 32a, the second engaging portions 32d and 32e Join the flange part). In this embodiment, since the width dimensions of the frame members 10h and 10i are equal to each other, the flat plate portion 32a is square, and the interval between the first engagement portions 32b and 32c and the interval between the second engagement portions 32d and 32e are as follows. Equal to each other.

  The first metal fitting 31 includes a rectangular flat plate portion 31a and a pair of engaging portions 31b and 31c bent at a right angle from the flat plate portion 31a. The flat plate portion 31a has a substantially square shape, and is arranged in a state of contacting the surface opposite to the surface on which the orthogonal holding metal fitting 32 is provided on the outer peripheral surface of one frame member 10h. A hole 31h through which the bolt 34 can be inserted is provided at the center of the flat plate portion 31a.

  The engaging portions 31b and 31c are provided in a state of being erected along a side surface of the frame member 10h from a pair of opposite sides of the flat plate portion 31a. The engaging portions 31b and 31c are erected downward from the flat plate portion 31a in a state where they are the same as or slightly larger than the width of the frame member 10h and parallel to each other. Therefore, as shown in FIG. 4, when the upper surface of the frame member 10h is in contact with the lower surface side of the flat plate portion 31a, the engaging portions 31b and 31c are connected to the side surface (the flange portion of the shape steel). ).

  The second metal fitting 33 has the same configuration as the first metal fitting 31. More specifically, the second metal fitting 33 includes a rectangular flat plate portion 33a and a pair of engaging portions 33b and 33c bent at a right angle from the flat plate portion 33a. The flat plate portion 33a has a substantially square shape, and is disposed in a state in which the outer peripheral surface of the other frame member 10i is in contact with the surface opposite to the surface on which the orthogonal holding metal fitting 32 is provided. A hole 33h through which the bolt 34 can be inserted is provided at the center of the flat plate portion 33a.

  The engaging portions 33b and 33c are provided in a state of being erected along a side surface of the frame member 10i from a pair of opposite sides of the flat plate portion 33a. These engaging portions 31b and 31c are erected upward from the flat plate portion 33a at intervals that are the same as or slightly larger than the width of the frame member 10i and are parallel to each other. Therefore, as shown in FIG. 4, when the lower surface of the frame member 10i is in contact with the upper surface side of the flat plate portion 33a, the engaging portions 33b, 33c ).

  When the first metal fitting 31, the orthogonal holding metal fitting 32, and the second metal fitting 33 are arranged on the two frame members 10h and 10i as described above, the three holes 31h, 32h, and 33h are located on the same axis, Moreover, it matches the position of the slit 23 provided in each frame material 10h, 10i. In this state, when the bolt 34 is inserted from, for example, the hole 31 a provided in the first metal fitting 31, the tip of the bolt 34 protrudes from the hole 33 h provided in the second metal fitting 33. By attaching and fastening a nut 35 to the protruding tip portion of the bolt 34, the orthogonal connecting fitting 12 connects and fixes the two frame members 10h and 10i in a state in which they are orthogonal to each other. In particular, when the bolt 34 and the nut 35 are fastened, the first engagement portions 32b and 32c of the orthogonal holding metal fitting 32 are joined to the side surface of the frame material 10h, and the second engagement portions 32d and 32e are the frame material. Since the two frame members 10h and 10i are fixed in a state of being joined to the side surface of 10i, the two frame members 10h and 10i are not rotated around the bolt 34, and the orthogonal state is maintained well.

  FIG. 5 is a diagram illustrating a configuration example of the T-shaped coupling metal 14 that couples the frame member 10 arranged in the horizontal direction and the support column 13 arranged in the vertical direction. In FIG. 5, the connection example of the frame material 10h and the support | pillar 13c is shown as an example. The T-shaped connection fitting 14 includes a support fitting 41 and an auxiliary fitting 51. The support metal fitting 41 is a metal fitting that is arranged on the one surface side where the slit 23 of the frame material 10h is provided and supports the support column 13c. The auxiliary metal fitting 51 is a metal fitting arranged on the surface of the frame material 10h opposite to the support metal fitting 41. The support metal fitting 41 and the auxiliary metal fitting 51 sandwich the frame material 10h, whereby the T-shaped connection metal fitting 14 is fixed to the frame material 10h.

  The support metal fitting 41 includes a substantially rectangular flat plate portion 42, a pair of engaging portions 43 and 43 bent at a right angle from the flat plate portion 42, and a pair of support portions erected from the flat plate portion 42 at the center of the flat plate portion 42. 45, 45. The flat plate portion 42 is arranged so that the longitudinal direction thereof coincides with the longitudinal direction of the frame material 10h, and is arranged in contact with one surface of the frame material 10h. Further, holes 44 for inserting bolts 58 are provided at both ends of the flat plate portion 42 in the longitudinal direction.

  The engaging portions 43 and 43 are provided in a state of being erected along a side surface of the frame member 10 h from a pair of sides facing each other in the short direction of the flat plate portion 42. These engaging portions 43, 43 are erected downward from the flat plate portion 42 in a state where they are the same as or slightly larger than the width dimension of the frame member 10h and are parallel to each other. Therefore, as shown in FIG. 5, when the upper surface of the frame material 10 h is in contact with the lower surface side of the flat plate portion 42, the engaging portions 43 and 43 are connected to the side surface (the flange portion of the shape steel) of the frame material 10 h. ).

  A pair of support parts 45 and 45 are arrange | positioned so that it may mutually oppose, and the inner shape becomes a shape corresponding to the external shape of the support | pillar 13c. In the present embodiment, the U-shaped support portions 45, 45 are arranged to face each other, and are configured to accommodate and support the end portion of the support column 13c inside thereof. Further, the side portions 47, 47 of the support portions 45, 45 facing each other are not joined to each other on the flat plate portion 42, but are arranged at a predetermined interval W as shown in FIG. Further, the support portions 45, 45 have holes 46, 46 into which bolts 48, 48 can be inserted at at least two positions spaced apart from each other along the extending direction (vertical direction) of the column 13c. . On the other hand, at least two holes 40, 40 through which the bolts 48, 48 of the holes 46, 46 can be inserted are also provided at the ends of the support column 13c. Therefore, in a state where the support column 13c is inserted between the pair of support portions 45, 45, the bolts 48, 48 are inserted into the holes 46, 46 of the support portions 45, 45 and the holes 40, 40 of the support column 13c, By attaching nuts 49 and 49 to the tips of the bolts 48 and 48 and fastening them, the support column 13c is fixed to the support portions 45 and 45.

  Even if a slight gap is generated between the inner surface of the support portions 45 and 45 and the outer surface of the support column 13c when the ends of the support columns 13c are accommodated inside the pair of support portions 45 and 45, the pair of support portions 45 and 45 are supported. Since the portions 45 and 45 are provided with a gap of a predetermined interval W, in the process of tightening the nuts 49 and 49 attached to the tips of the bolts 48 and 48, the inner surfaces of the support portions 45 and 45 are connected to the outer surface of the support column 13c. It is possible to make it adhere to. That is, when the nuts 49, 49 attached to the tips of the bolts 48, 48 are tightened, the pair of support portions 45, 45 move in a direction to bring them closer to each other while slightly deforming the upper portions thereof. It is possible to eliminate the gap between the support portions 45 and 45 and the support column 13c and fix the support portions 45 and 45 in close contact with the support column 13c. As a result, the column 13c is integrally fixed to the support portions 45 and 45 so as not to cause wobble or the like.

  On the other hand, the auxiliary metal fitting 51 includes a substantially rectangular flat plate portion 52 and a pair of engaging portions 53 and 53 bent at right angles from the flat plate portion 52. The flat plate portion 52 is disposed so that the longitudinal direction thereof coincides with the longitudinal direction of the frame material 10h and is in contact with one surface of the frame material 10h. Further, holes 54 for inserting bolts 58 are provided at both ends in the longitudinal direction of the flat plate portion 42.

  The engaging portions 53 and 53 are provided in a state of being erected along a side surface of the frame member 10 h from a pair of sides facing each other in the short direction of the flat plate portion 52. These engaging portions 53 and 53 are erected upward from the flat plate portion 52 in a state where they are the same as or slightly larger than the width dimension of the frame member 10 h and are parallel to each other. Therefore, as shown in FIG. 5, when the lower surface of the frame material 10 h is in contact with the upper surface side of the flat plate portion 52, the engaging portions 53, 53 are connected to the side surface (the flange portion of the shaped steel) ).

  When the support fitting 41 and the auxiliary fitting 51 are installed on the frame material 10h as described above, the hole 44 provided in the flat plate portion 42 of the support fitting 41 and the flat plate portion 52 of the auxiliary fitting 51 are provided. The hole 54 is coaxially positioned and coincides with the position of the slit 23 provided in the frame material 10h. In this state, when the bolt 58 is inserted from, for example, the hole 44 provided in the support fitting 41, the tip of the bolt 58 protrudes from the hole 54 provided in the auxiliary fitting 51. By attaching and fastening a nut 59 to the projecting tip of the bolt 58, the T-type fitting 14 is connected and fixed in a state in which the column 13c is orthogonal to the frame material 10h.

  In FIG. 5, the T-type connecting bracket 14 attached to the lower end portion of the support column 13 is shown, but the T-type connecting bracket 14 attached to the upper end portion of the support column 13 is the same. That is, the T-shaped coupling fitting 14 shown in FIG. 5 is attached to the upper end portion of the support column 13 while being inverted upside down.

  The upper frame 2 is configured by assembling the plurality of frame members 10a to 10f as described above, and the lower frame 3 is configured by assembling the plurality of frame members 10g to 10j. When the body 2 and the lower frame 3 are connected by a plurality of support columns 13a to 13d, the frame structure 1 shown in FIG. 1 is obtained. For example, if a plurality of frame members 10 and a plurality of support pillars 13 constituting the frame structure 1 are prepared in advance at a factory and then transported to a construction site, the transport efficiency can be increased. In this case, the frame structure 1 can be created by assembling the plurality of frame members 10 and the plurality of support columns 13 at the construction site.

  The frame structure 1 created in this way is designed so that the size and shape of the upper frame 2 are designed in advance so as to be compatible with the shape of the ceiling structure to be attached. It becomes possible to attach also to the ceiling structure of such a form. For example, it is possible to install the upper frame 2 in a state in which the upper frame 2 is close to the surface of the ceiling slab. Moreover, if the length of each support | pillar 13 is adjusted beforehand according to the height which installs an air conditioner, an air conditioner can be installed now in what height position.

  In addition, since the column 13 of the frame structure 1 has high rigidity, the relative positional relationship between the upper frame 2 and the lower frame 3 can always be kept stable even when an earthquake occurs. It is. Therefore, in the frame structure 1 of this embodiment, it is not necessary to arrange a brace bolt as in the past between the plurality of pillars 13. Therefore, the frame structure 1 is provided with an open space 4 between the upper frame 2 and the lower frame 3 in which a refrigerant pipe or the like connected to the air conditioner can be arranged. This open space 4 means that there is no obstructive member that crosses the substantially central position between the two struts 13 adjacent to each other diagonally or laterally, and the frame structure This is a space having an opening larger than that in the prior art in order to access the inner region surrounded by the four support columns 13 from the outside of the body 1.

  In the case of the steady rest structure in which the four corners of the air conditioner are supported by four suspension bolts and a pair of brace bolts are disposed between the two suspension bolts adjacent to each other as in the conventional case, A rectangular opening between two suspension bolts is divided into four by a pair of brace bolts. In particular, since the openings divided into four are all triangular, the opening width differs depending on the height position, so the shape of the object that can be placed inside the four suspension bolts is extremely limited It ’s not easy to use. For this reason, conventionally, the brace bolt is in the way and the area inside the four suspension bolts cannot be used effectively. On the other hand, in the frame structure 1 of the present embodiment, since the rectangular opening between the two columns 13 and 13 is not divided, the open space 4 can be used effectively, and the open space 4 It is possible to arrange a refrigerant pipe or the like. Therefore, if the frame structure 1 of the present embodiment is used, the air conditioner and the refrigerant pipe can be easily unitized at the construction site, and the working efficiency can be dramatically improved as compared with the conventional case. Can do.

  FIG. 6 is a diagram illustrating an example in which the air conditioner 100 is attached to the lower frame 3 of the frame structure 1. The air conditioner 100 is an indoor unit of a ceiling installation type, and has two connection portions 101 for connecting refrigerant piping to the side surface thereof. The air conditioner 100 also has a connecting portion 102 for connecting a drain pipe to its side surface. As shown in FIG. 6, such an air conditioner 100 has four corners attached to at least two frame members 10 i and 10 j among the four frame members 10 g to 10 j constituting the lower frame 3. It is supported by four support bolts 61. Thus, the operation | work which attaches the air conditioner 100 with respect to the frame structure 1 is performed as floor work in a construction site, for example. At this time, since the frame structure 1 is lightweight, the air conditioner 100 can be easily attached to the frame structure 1 while a plurality of workers work on the floor surface. For example, a plurality of workers lift the frame structure 1 and carry it to the upper side of the air conditioner 100 in a state where it is placed on the floor, and another worker attaches the support bolt 61 to the lower frame 3. The air conditioner 100 may be fixed.

  Further, the upper portions of the support bolts 61 are fixed to the frame materials 10i and 10j by tightening nuts while being inserted into the slits 23 provided in the frame materials 10i and 10j. At this time, the position where the support bolt 61 is fixed can be appropriately adjusted in the direction in which the slit 23 extends (Y direction). Further, if the bolts 34 and nuts 35 of the orthogonal connecting bracket 12 that connects the frame members 10i and 10j to be orthogonal to the frame members 10g and 10h are loosened, the position of the frame members 10i and 10j is changed to the frame member 10g. , 10h can be appropriately adjusted in the extending direction (X direction) of the slit 23 provided in 10h. Therefore, when attaching the air conditioner 100 to the lower frame 3, the operator adjusts the position of the orthogonal coupling fitting 12 and the support bolt 61 appropriately along the slits 23 provided in each frame material 10. By doing so, the air conditioner 100 can be attached to an appropriate position in the XY plane.

  Moreover, since the frame structure 1 can arrange | position the air conditioner 100 in the position directly under the lower frame 3, it can make the space | interval of the lower surface of the lower frame 3 and the upper surface of the air conditioner 100 small. Is possible. Therefore, the support bolt 61 that supports the air conditioner 100 can be made as short as possible. When the air conditioner is directly attached to the suspension bolt that hangs down from the ceiling structure as in the past, the suspension bolt becomes longer, so when the earthquake occurs, the suspension bolt vibrates as if bent, resulting in a large vibration width of the air conditioner. Become. On the other hand, in the present embodiment, the short support bolt 61 attached to the lower frame 3 supports the air conditioner 100 at a position immediately below the lower frame 3, so that the vibration of the support bolt 61 is also generated even when an earthquake occurs. The width can be reduced, and as a result, the vibration width of the air conditioner 100 can also be suppressed. Further, as described above, since the frame structure 1 has high rigidity, the vibration width of the air conditioner 100 can be suppressed to be small when an earthquake occurs, and the frame structure 1 is excellent in earthquake resistance.

  Next, FIG. 7 is a diagram illustrating a configuration example of the refrigerant pipe 70 disposed in the open space 4 of the frame structure 1. The refrigerant pipe 70 connected to the air conditioner 100 has a copper pipe 71 on the inner side and a heat insulating material 72 provided on the outer side of the copper pipe 71. Further, the refrigerant pipe 70 is provided with an outgoing pipe 70a and a return pipe 70b for circulating the refrigerant. The outgoing pipe 70a and the return pipe 70b are arranged side by side, and are previously integrated by winding an adhesive tape 73 or the like. Configured to state. The refrigerant pipe 70 shown in FIG. 7 is unitized in advance in a factory or the like so as to be disposed in the open space 4 of the frame structure 1 and has two branch portions 75 and 76. Therefore, the refrigerant pipe 70 shown in FIG. 7 has four connection parts 77 in a state where the copper pipe 71 is exposed. Among these, the connection part 77a is a connection part for connecting the refrigerant | coolant piping connected with an outdoor unit. Moreover, the connection part 77b is a connection part for connecting to the air conditioner 100 which the frame structure 1 supports. Furthermore, the connection parts 77c and 77d are connection parts for connecting a refrigerant pipe connected to another air conditioner located further downstream. However, the number of branch portions provided in the refrigerant pipe 70 previously unitized is not limited to two, and may be one, or may be three or more. Furthermore, the refrigerant pipe 70 that is unitized in advance may have a configuration that does not have a branch portion. That is, the refrigerant pipes 70 arranged in the open space 4 of the frame structure 1 have different forms depending on the installation position of the air conditioner 100 in the building.

  For example, as shown in FIG. 7, when the refrigerant pipe 70 to be arranged in the open space 4 of the frame structure 1 is prepared in advance in a factory or the like, branch portions 75 and 76 are provided in the refrigerant pipe 70 in advance. Therefore, it is not necessary to perform the work of attaching the branch portion at the construction site. Therefore, it becomes possible to reduce the brazing work at the construction site. Moreover, since it is only necessary to connect copper pipes having the same diameter as the connection parts 77c and 77d to the connection parts 77c and 77d connected to the downstream air conditioner, an appropriate copper pipe diameter can be selected from various copper pipe diameters at the construction site. The troublesomeness of having to select the pipe diameter is eliminated. Therefore, the work efficiency at the construction site can be remarkably improved by unitizing the refrigerant pipe 70 in advance in a factory or the like.

  FIG. 8 is a diagram illustrating an example in which the refrigerant pipe 70 is installed in the open space 4 of the frame structure 1 to which the air conditioner 100 is attached. For example, after the frame structure 1 is assembled at the construction site, the worker arranges the refrigerant pipe 70 in the open space 4 between the upper frame 2 and the lower frame 3. At this time, since there is no member that hinders the arrangement of the refrigerant pipe 70 between the pair of adjacent columns 13 and 13, the operator can smoothly arrange the refrigerant pipe 70 in the open space 4. The refrigerant pipe 70 disposed in the open space 4 is supported by a plurality of suspension bands 62 attached to the upper frame 2. A bolt 63 is connected to the upper part of the suspension band 62. The suspension band 62 is fixed to the upper frame 2 by tightening the nut with the bolt 63 inserted through the slit 23 of the frame member 10 constituting the upper frame 2. Also at this time, the operator can appropriately adjust the installation position of the bolt 63 along the slit 23 of each frame member 10. Such work is also performed as work on the floor at the construction site.

  Further, when the refrigerant pipe 70 is supported by the upper frame 2, the connection part 77 b of the refrigerant pipe 70 is connected to the two connection parts 101 provided on the side surface of the air conditioner 100. This work is also performed as a work on the floor at the construction site. Therefore, it is not necessary to perform the work of connecting the connection part 77b of the refrigerant pipe 70 to the connection part 101 of the air conditioner 100 as a high place work. As a result, the frame structure 1 is in a state of supporting both the air conditioner 100 and the refrigerant pipe 70.

  Although FIG. 8 shows an example in which only the refrigerant pipe 70 is arranged with respect to the open space 4, the present invention is not limited to this. For example, a drain pipe is also arranged in the open space 4 by work on the floor surface. Anyway. In this case, the drain pipe is supported by a suspension band 62 attached to the upper frame 2, similarly to the refrigerant pipe 70. Further, it is preferable that the drain pipe is connected in advance to the connection portion 102 of the air conditioner 100 when working on the floor surface.

  When the air conditioner 100 and the refrigerant pipe 70 are assembled to the frame structure 1 as described above, the frame structure 1 is lifted to a position near the ceiling structure to be attached. FIG. 9 is a diagram illustrating a state where the frame structure 1 is lifted using the lift device 200. For example, the lift device 200 is a manually operated device, and an operator can raise the fork unit 202 as indicated by an arrow F1 by rotating the rotary handle 201 in a predetermined direction.

  First, the operator places the two lift devices 200 facing each other, and lowers the fork portion 202 of each lift device 200 to a position near the floor surface 7 as indicated by a broken line in the figure. To do. Then, a plurality of workers lift the frame structure 1 to which the air conditioner 100 and the refrigerant pipe 70 are assembled, and place them on the upper surfaces of the fork portions 202 facing each other. Also at this time, since the frame structure 1 is lightweight, it is easy for the operator to work.

  Thereafter, the operator rotates the rotary handle 201 of each lift device 200 in a predetermined direction to raise the fork portion 202 as shown in FIG. 9, so that the upper frame 2 of the frame structure 1 is attached to the ceiling structure 8. Lift until it is in the vicinity of. At this time, the operator adjusts the position of the frame structure 1 so that the tip of the suspension bolt 9 hanging from the ceiling structure 8 can be inserted into the slit 23 of the frame material 10 constituting the upper frame 2. While raising it. When the tip of the suspension bolt 9 is inserted into the slit 23 of the upper frame body 2, an operator who works at a high place attaches a nut to the distal end of the suspension bolt 9 and tightens it, so that the upper frame body 2 is suspended. Secure to bolt 9. Thereby, the frame structure 1 is fixed in the state supported by the suspension bolt 9. According to such an attachment mode, the upper frame 2 of the frame structure 1 can be attached in a state of being in contact with or close to the ceiling structure 8 such as a ceiling slab. The bolt 9 can be made as short as possible. Therefore, the suspension bolt 9 does not vibrate greatly even when an earthquake occurs, the vibration width of the air conditioner 100 can be kept small, and the earthquake resistance is excellent. In particular, when the upper frame 2 can be fixed in a state of being pressed against the ceiling structure 8, the frame structure 1 can be integrated with the ceiling structure 8. There is an advantage that can be made smaller.

  When the frame structure 1 is fixed to the suspension bolt 9, the operator lowers the fork portion 202 by rotating the rotary handle 201 in the reverse direction. FIG. 10 is a diagram illustrating a state in which the frame structure 1 is attached to the ceiling structure 8. The height work to be performed by the worker to obtain the state shown in FIG. 10 is only the work of fixing the upper frame 2 to the suspension bolt 9. Therefore, compared with the prior art, it is possible to reduce the high place work which an operator should perform, and work efficiency improves.

  When the frame structure 1 is attached to the ceiling structure 8 as shown in FIG. 10, the operator next sets the upstream or downstream refrigerant pipes with respect to the connection parts 77 a, 77 c, 77 d of the refrigerant pipe 70. Work to connect. At this time, since the branch portion is provided in advance in the refrigerant pipe 70 supported by the frame structure 1, the operator does not need to perform the work of attaching the branch portion at the construction site. That is, since the operator only needs to select and connect a copper pipe having the same diameter as each of the connecting portions 77a, 77c, and 77d, the refrigerant pipe can be efficiently installed.

  As described above, when the frame structure 1 of the present embodiment is used, it is possible to accommodate the branch portion to be provided in the refrigerant pipe 70 in the open space 4 above the air conditioner 100 in advance. Therefore, when it is necessary to arrange a plurality of air conditioners 100 at a predetermined interval in a certain space such as an office, for example, the layout of the air conditioner 100 and the layout of the refrigerant pipe 70 are simultaneously designed. There is also an advantage that it can be done.

  FIG. 11 is a diagram illustrating an example of an installation form of the refrigerant pipe 70 when the frame structure 1 is used. FIG. 11 shows an example in which the refrigerant pipe 70 connected to the outdoor unit is connected to six air conditioners 100. In the example shown in FIG. 11, the layout is such that six air conditioners 100 are installed using the six frame structures 1 a to 1 f. Of the six frame structures 1a to 1f, the refrigerant pipe 70 incorporated in the frame structures 1a and 1b is provided with two branch portions in advance. In addition, one branch portion is provided in advance in the refrigerant pipe 70 incorporated in the frame structure 1c. On the other hand, the branch part is not provided in the refrigerant | coolant piping 70 integrated in other frame structure 1d-1f.

  In this layout, the refrigerant pipe 70 connected to the outdoor unit is first guided to the frame structure 1a. And the refrigerant | coolant piping 70 branches in three in the frame structure 1a, and one of them is connected to the air conditioner 100 supported by the frame structure 1a. Of the remaining two, one refrigerant pipe 70 is led from the frame structure 1a to the frame structure 1b, and the other refrigerant pipe 70 is led to the frame structure 1c. Similarly to the above, the refrigerant pipe 70 led to the frame structure 1b branches into three in the frame structure 1b, one of which is connected to the air conditioner 100 supported by the frame structure 1b, Another one is led to the frame structure 1c, and the other one is led to the frame structure 1e. Further, the refrigerant pipe 70 led to the frame structure 1c branches into two in the frame structure 1c, one of which is connected to the air conditioner 100 supported by the frame structure 1c, and the other one is the frame. Guided to the structure 1f. On the other hand, in the frame structures 1d to 1f, it is only necessary to connect the refrigerant pipes 70 led from the respective frame structures 1a to 1c to the air conditioner 100.

  As described above, by using the frame structure 1 of the present embodiment, it is possible to consolidate all the branch portions of the refrigerant pipe 70 at the installation position of the frame structure 1, and from one frame structure 1 to another frame structure. There is no need to provide a branch portion in the refrigerant pipe 70 leading to the body 1. As a result, when constructing the refrigerant pipe 70 at the construction site, it is only necessary to connect a single pipe having the same diameter to the connection parts 77a, 77c, 77d of the refrigerant pipe 70 supported by the frame structure 1, The work can be done efficiently.

  As described above, the frame structure 1 of the present embodiment is configured by arranging a plurality of frame members 10 in a rectangular shape, and the upper frame 2 that can be fixed to the ceiling structure 8 and the plurality of frame members 10 in a rectangular shape. A lower frame 3 that supports the air conditioner 100, and a plurality of columns 13 that have an upper end connected to the upper frame 2 and a lower end connected to the lower frame 3. In addition, an open space 4 is provided between the upper frame body 2 and the lower frame body 3 in which a refrigerant pipe 70 connected to the air conditioner 100 can be disposed. According to such a frame structure 1, it is excellent in earthquake resistance, and when installing the air conditioner 100 in the ceiling structure 8, the air conditioner 100 and the refrigerant | coolant piping 70 can be constructed integrally. Is possible. Furthermore, it is possible to prepare the refrigerant pipe 70 connected to the air conditioner 100 in advance at a factory or the like. In this case, it is not necessary to attach the branch portion to the refrigerant pipe 70 at the construction site by providing the branch portion in the refrigerant pipe 70 arranged in the open space 4 in advance. Therefore, the working efficiency can be remarkably improved.

  Next, FIG. 12 is a diagram illustrating a configuration example of the frame structure 1 in which the reinforcing member 80 is provided between the plurality of support columns 13. As shown in FIG. 12, the reinforcing member 80 is a plate-like member made of, for example, iron or aluminum. This reinforcing member 80 is for mutually connecting and reinforcing two adjacent struts 13a, 13c or 13b, 13d among the plurality of struts 13.

  For example, the reinforcing member 80 is disposed in a direction orthogonal to the extending direction of the frame material 10 connected to the lower end portion or the upper end portion of each column 13 and reinforces each column 13. In the example of FIG. 12, the upper ends of the columns 13a, 13b, 13c, and 13d are connected to the frame members 10e and 10f extending in the X direction, and the lower ends are also extended to the frame member 10g in the X direction. , 10h. Therefore, the reinforcing member 80 is disposed so as to connect the positions near the upper ends and the positions near the lower ends of the two columns 13a and 13c in the Y direction, and sets the positions near the upper ends and the positions near the lower ends of the two columns 13b and 13d as Y. Arranged to connect in the direction. Thereby, the seismic performance of the frame structure 1 is further improved. In addition, in FIG. 12, although the example which attached the reinforcement member 80 to four places of the four support | pillars 13 is shown, the number of the places which attach the reinforcement member 80 is arbitrary. For example, it may be less than three places.

  Further, both ends of the reinforcing member 80 are fixed to the support column 13. At this time, the reinforcing member 80 is preferably fixed to the column 13 using at least two bolts 81 and 82 at each end. Thereby, since the reinforcement member 80 is fixed so that relative displacement (angle change) with respect to the support | pillar 13 does not arise, reinforcement intensity | strength increases. Note that such a reinforcing member 80 is not necessarily limited to be disposed in the horizontal direction, and may be disposed in an oblique direction. However, unlike the conventional brace bolt, it is not necessary to arrange the two reinforcing members 80 in a state of intersecting between the two pillars 13, and sufficient strength can be obtained only by arranging one reinforcing member 80. Can do.

  Further, when both ends of the reinforcing member 80 are fixed to the support column 13, two bolts 48 (see FIG. 5) used when fixing the support column 13 in the T-shaped coupling bracket 14 described above may be used. In this case, the bolt 48 has a function of fixing the two members, that is, the reinforcing member 80 and the T-shaped connecting bracket 14 to the column 13. Therefore, if the reinforcing member 80 is fixed to the support column 13 using the bolts 48, there is an advantage that the number of bolts used in the frame structure 1 can be reduced.

  By the way, the reinforcing member 80 as described above closes a part of the open space 4 between the upper frame body 2 and the lower frame body 3. That is, by disposing the reinforcing member 80, a part of the rectangular opening between the two columns 13, 13 is closed. However, in this embodiment, since only one reinforcing member 80 is disposed between the two columns 13 and 13, at least one of the rectangular openings between the two columns 13 and 13 is used. / 2 or more can be in an undivided open state. Therefore, even if the reinforcing member 80 is arranged, there is no change in that the open space 4 between the upper frame body 2 and the lower frame body 3 can be effectively used as a space for arranging the refrigerant pipe 70. .

  Although one embodiment related to the present invention has been described above, the present invention is not limited to that described in the above embodiment. That is, the present invention can be applied to various modifications other than the configuration described in the above embodiment.

  For example, in the above embodiment, the example in which the refrigerant pipe 70 is arranged in the open space 4 between the upper frame body 2 and the lower frame body 3 of the frame structure 1 and the example in which the drain pipe is arranged have been described. However, other ceiling suspended objects may be arranged in the open space 4. Examples of other ceiling suspended articles include ventilation ducts and cable pipes, but are not necessarily limited to these.

  Moreover, in the said embodiment, the case where the slit 23 was provided in the frame material 10 which comprises the upper frame 2 or the lower frame 3 was illustrated. However, the present invention is not limited to this, and the frame material 10 may have a hole such as a round hole or a long hole, and the support bolt 61, the bolt 63, the suspension bolt 9, or the like may be inserted into the hole. Absent.

  Moreover, in the said embodiment, the method of lifting the frame structure 1 with which the air conditioner 100 and the refrigerant | coolant piping 70 were assembled | attached to the position near the ceiling structure 8 using the manually operated lift apparatus 200 was illustrated. However, the method of lifting the frame structure 1 to the position near the ceiling structure 8 is not limited to this.

  DESCRIPTION OF SYMBOLS 1 ... Frame structure, 2 ... Upper frame, 3 ... Lower frame, 8 ... Ceiling structure, 9 ... Suspension bolt, 10 (10a-10j) ... Frame material, 23 ... Slit, 61 ... Support bolt, 62 ... Suspension Band: 70 ... Refrigerant piping, 80 ... Reinforcing member, 100 ... Air conditioner.

Claims (7)

An upper frame body that is configured by arranging a plurality of frame materials in a rectangular shape and can be fixed to a ceiling structure;
A plurality of frame members arranged in a rectangular shape, and a lower frame that supports the air conditioner;
A plurality of support columns having an upper end connected to the upper frame and a lower end connected to the lower frame;
A refrigerant pipe disposed in an open space between the upper frame and the lower frame and connected to the air conditioner;
With
The refrigerant pipe includes at least one branch part, a first connection part connected to an upstream pipe connected to an outdoor unit, and a second connection connected to the air conditioner supported by the lower frame. And a third connection portion connected to a downstream pipe connected to another air conditioner .   The plurality of frame members constituting the lower frame body have slits formed along a longitudinal direction, and the air conditioner is supported by support bolts attached to the slits. Frame structure described in 1.   The plurality of frame members constituting the upper frame have a slit formed along a longitudinal direction, and support the refrigerant pipe in a state of being hung in the open space by a suspension band attached to the slit. The frame structure according to claim 1 or 2, wherein   The frame structure according to any one of claims 1 to 3, further comprising a reinforcing member that connects two struts adjacent to each other among the plurality of struts.   The frame structure according to any one of claims 1 to 4, wherein the plurality of frame members constituting the upper frame body and the lower frame body are made of aluminum. An upper frame body that is configured by arranging a plurality of frame materials in a rectangular shape and can be fixed to a ceiling structure;
A plurality of frame members arranged in a rectangular shape, and a lower frame that supports the air conditioner;
A plurality of support columns having an upper end connected to the upper frame and a lower end connected to the lower frame;
And an air conditioner construction method using a frame structure provided with an open space in which a refrigerant pipe connected to the air conditioner can be arranged between the upper frame and the lower frame. And
A plurality of frame members constituting the upper frame body and the lower frame body, and a step of carrying the plurality of columns to a construction site;
A step of creating the frame structure by assembling the plurality of frame materials and the plurality of struts at a construction site;
Attaching the air conditioner to the lower frame;
Installing a refrigerant pipe prepared in advance so as to correspond to an installation position of the air conditioner in the open space, and attaching the refrigerant pipe to the upper frame;
Lifting the frame structure to a position near the ceiling structure with the air conditioner and the refrigerant pipe assembled to the frame structure, and fixing the upper frame to a suspension bolt hanging from the ceiling structure;
A method for constructing an air conditioner, characterized by comprising:   The construction method of the air conditioner according to claim 6, wherein the refrigerant pipe is provided with at least one branch portion in advance.

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