JP2023178238A - Indoor machine unit, method for transporting indoor machine unit, and method for constructing indoor machine unit - Google Patents

Abstract

To provide an indoor machine unit, a method for transporting an indoor machine unit, and a method for constructing an indoor machine unit that can reduce a load added to an indoor machine at the time of transportation or storage.SOLUTION: An indoor machine unit 10 includes: an aseismatic structural frame 11; an indoor machine 12 fixed to the aseismatic structural frame 11 while being disposed under the aseismatic structural frame 11; and a unit support part 13 extending to a lower position relative to an undersurface 12B of the indoor machine 12 from the aseismatic structural frame 11.SELECTED DRAWING: Figure 1

Description

The present disclosure relates to an indoor unit, a method of transporting the indoor unit, and a method of constructing the indoor unit.

An indoor unit with an earthquake-resistant structural frame is known (for example, Patent Document 1). The earthquake-resistant structure frame and the indoor unit are integrally coupled. The indoor unit is installed on the slab. Specifically, the earthquake-resistant structure frame is fixed to the slab so that the indoor unit is located below the earthquake-resistant structure frame. The indoor unit is supported by an earthquake-resistant structural frame.

Japanese Patent Application Publication No. 2019-178509

By the way, when transporting or storing an indoor unit in which an earthquake-resistant structure frame and an indoor unit are integrated, the load of the earthquake-resistant structure frame is applied to the indoor unit. For this reason, there is a possibility that the indoor unit may deteriorate.

An indoor unit according to a first aspect of solving the problem is an indoor unit that includes an earthquake-resistant structure frame, an indoor unit disposed under the earthquake-resistant structure frame and fixed to the earthquake-resistant structure frame, and the earthquake-resistant structure. A unit support portion extending from the frame to a position below the lower surface of the indoor unit. According to this configuration, in an indoor unit having an earthquake-resistant structure, the load applied to the indoor unit during transportation or storage can be reduced.

In the indoor unit according to the second aspect, in the indoor unit according to the first aspect, the unit support portion includes a leg portion having a wheel connection portion. According to this configuration, the wheels can be connected to the legs. This makes it easier to transport the indoor unit.

In the indoor unit according to the third aspect, in the indoor unit according to the second aspect, the unit support section includes the leg section and a wheel provided at the wheel connection section. According to this configuration, the indoor unit can be easily transported.

An indoor unit according to a fourth aspect is the indoor unit according to the third aspect, in which the wheels are removably attached to the wheel connecting portions of the legs. According to this configuration, the wheel can be removed from the leg. For example, by removing the wheels after attaching the indoor unit to the ceiling structure, building materials or decorative panels of the indoor unit can be placed near the wheel connection portions.

In the indoor unit according to a fifth aspect, in the indoor unit according to any one of the second to fourth aspects, the lower end of the leg is located below the lower surface of the indoor unit. According to this configuration, the indoor unit can be placed on the floor or the ground without attaching wheels to the wheel connection portion and without bringing the indoor unit into contact with the floor or the ground.

In the indoor unit according to a sixth aspect, in the indoor unit according to any one of the second to fourth aspects, the lower end of the leg is located below the upper surface of the indoor unit, and Located above the bottom surface. According to this configuration, when placing building materials or decorative panels of the indoor unit around the indoor unit attached to the ceiling structure, part of the building materials or the decorative panel of the indoor unit can be placed under the legs. . When a building material or a part of the decorative panel of the indoor unit is placed under the legs, the lower end of the legs is located below the bottom surface of the indoor unit in the vertical direction. and the lower surface of the decorative panel of the building material or indoor unit can be narrowed. Thereby, the appearance of the area around the indoor unit after the indoor unit is attached to the ceiling structure can be improved.

In the indoor unit unit according to a seventh aspect, in the indoor unit unit according to any one of the first to sixth aspects, the earthquake-resistant structure frame has a frame body, and the indoor unit extends from the lower horizontal frame of the frame body. Hanged. According to this configuration, earthquake resistance can be improved.

In the indoor unit according to an eighth aspect, in the indoor unit according to any one of the second to sixth aspects, the leg portion is arranged along a side surface of the indoor unit, and the leg portion is further arranged in a lateral direction from the leg portion. The indoor unit has a support portion extending from the support portion, the support portion is provided at a position below the top surface of the indoor unit, and the indoor unit is suspended from the support portion. According to this configuration, the length of the hanging fitting can be shortened. Therefore, the amplitude of oscillation of the indoor unit during vibration can be reduced.

The indoor unit according to the ninth aspect is configured such that, in any one of the indoor units according to the first to eighth aspects, the indoor unit is loaded with another indoor unit. According to this configuration, a plurality of indoor units can be transported in a stacked state.

The indoor unit according to a tenth aspect is the indoor unit according to any one of the first to ninth aspects, further comprising an accessory part connected to the indoor unit, and the accessory part is fixed to the earthquake-resistant structure frame. be done. According to this configuration, the indoor unit, accessory parts, and earthquake-resistant structure frame can be installed all at once.

In the indoor unit according to an eleventh aspect, in the indoor unit according to the tenth aspect, the accessory parts are arranged such that a space is provided in the earthquake-resistant structural frame for a fork of a forklift to enter from the front or side of the indoor unit. be done. According to this configuration, the indoor unit can be easily transported by a forklift.

A method for transporting an indoor unit according to a twelfth aspect of solving the problem is a method for transporting an indoor unit, in which the indoor unit includes an earthquake-resistant structure frame, an indoor unit fixed to the earthquake-resistant structure frame, and an indoor unit fixed to the earthquake-resistant structure frame. and wheels provided on an earthquake-resistant structure frame, and includes a step of transporting the indoor unit using the wheels.

When using a trolley to transport the indoor unit, it is necessary to load the indoor unit onto the trolley, unload the indoor unit from the trolley, and return the empty trolley to its original location. In this respect, with the above configuration, these operations can be omitted.

A method for constructing an indoor unit according to a thirteenth aspect of solving the problem is a method for constructing an indoor unit, wherein the indoor unit includes an earthquake-resistant structural frame, an indoor unit fixed to the earthquake-resistant structural frame, and an indoor unit fixed to the earthquake-resistant structural frame. wheels that are removably attached to an earthquake-resistant structure frame, a step of transporting the indoor unit to an installation location using the wheels, and a step of fixing the indoor unit to a ceiling structure at the installation location; The method includes a step of removing the wheels from the indoor unit after the indoor unit is transported to the installation location.

When using a trolley to transport the indoor unit, it is necessary to place the indoor unit on the trolley, unload the indoor unit from the trolley, and return the empty trolley to its original location. With the above configuration, these operations can be omitted. Furthermore, the wheels can be removed from the indoor unit. Therefore, after the indoor unit is transported to the installation location, the wheels can be removed without leaving the wheels on, so the height of the indoor unit can be reduced. Additionally, by making the wheels removable, the wheels can be returned to the assembly factory and used again.

A method for constructing an indoor unit according to a fourteenth aspect is that in the method for constructing an indoor unit according to a thirteenth aspect, the earthquake-resistant structural frame is configured to be loaded with another earthquake-resistant structural frame, and the In the process of transporting the indoor unit to the installation location, the plurality of indoor units are transported in a state where the plurality of indoor units are loaded. According to this configuration, since a plurality of indoor units can be transported to the installation location at once, the efficiency of transporting the indoor units can be improved.

A method for constructing an indoor unit according to a fifteenth aspect of solving the problem is a method for constructing an indoor unit, wherein the indoor unit includes an earthquake-resistant structural frame and an indoor unit fixed to the earthquake-resistant structural frame. a first step of installing four support members for supporting the earthquake-resistant structural frame in a ceiling structure at a location where the indoor unit unit is installed, so as to correspond to each of the four corners of the earthquake-resistant structural frame; a second step of fixing the indoor unit to four of the support members, and in the first step, four of the support members are arranged parallel to each other so as to hang downward from the ceiling structure. In the second step, the lower end of the leg of the indoor unit is arranged at a higher position than the ceiling member attached under the ceiling structure, and the decorative panel attached to the indoor unit is The position of the indoor unit is adjusted with respect to the four support members so that the indoor unit can be placed at a lower position than the ceiling member.

According to this configuration, the position of the lower end of the leg of the indoor unit is adjusted as described above. Therefore, when the indoor unit is attached to the ceiling structure, the lower surface of the ceiling member and the decorative panel of the indoor unit can be brought close to each other in the vertical direction. As a result, the difference in level between the lower surface of the ceiling member and the decorative panel of the indoor unit becomes smaller, so that the appearance of the ceiling can be improved.

A method for constructing an indoor unit according to a sixteenth aspect is that in the method for constructing an indoor unit according to a fifteenth aspect, two adjacent ones of the four supporting members are connected by a connecting member, and the four supporting members are connected by a connecting member. The other two of the support members are connected by another connecting member. According to this configuration, since the support member is reinforced by the connection member, the indoor unit can be firmly installed on the ceiling structure.

FIG. 2 is a schematic diagram of an indoor unit according to the first embodiment. FIG. 2 is a perspective view of the indoor unit according to the first embodiment. FIG. 2 is a front view of the indoor unit according to the first embodiment. FIG. 3 is a schematic diagram of another example of the indoor unit according to the first embodiment. FIG. 2 is a perspective view of an earthquake-resistant structural frame with legs. FIG. 2 is a perspective view of an indoor unit with wheels. FIG. 3 is a perspective view of indoor units in a stacked state. It is a schematic diagram of the transportation method of an indoor unit. It is a schematic diagram of the 2nd process regarding the construction method of an indoor unit. It is a schematic diagram of the 3rd process regarding the construction method of an indoor unit. FIG. 3 is a perspective view of an indoor unit according to a second embodiment. FIG. 3 is a front view of an indoor unit provided with wheels. FIG. 3 is a perspective view of indoor units in a stacked state. FIG. 2 is a perspective view of an indoor unit attached to a support structure. It is a front view of a support member. It is a schematic diagram which shows the position adjustment of an indoor unit by the position adjustment part of a support member. It is a schematic diagram which shows the position adjustment of an indoor unit by replacing|exchanging another support member. FIG. 2 is a schematic diagram of a pre-process in the method of constructing an indoor unit. It is a schematic diagram of the 1st process regarding the construction method of an indoor unit. It is a schematic diagram of the 2nd process regarding the construction method of an indoor unit. It is a schematic diagram of a ceiling member attachment process regarding the construction method of an indoor unit. It is a schematic diagram of the decorative panel installation process regarding the construction method of the indoor unit. FIG. 7 is an enlarged perspective view of a modification of the indoor unit according to the second embodiment.

<First embodiment>
The indoor unit 10 according to the first embodiment will be described. The indoor unit 10 according to the first embodiment is installed in a structural member 1 of a building. The indoor unit 10 may be installed in an attic space. The attic space indicates the space between the ceiling structure 1A (see below) and the ceiling member 3. The ceiling member 3 includes a plate-shaped ceiling material that constitutes the ceiling of the room. In this embodiment, the ceiling member 3 does not include a ceiling base material that supports the ceiling material. The indoor unit 10 is arranged in the attic space so as not to be exposed indoors. In another example, the indoor unit 10 is installed on the ceiling structure 1A in a skeleton indoor space where no ceiling material is provided.

<Indoor unit>
The indoor unit 10 will be described with reference to FIGS. 1 to 10.
As shown in FIG. 1, the indoor unit 10 is attached directly or indirectly to a structural member 1 of a building. For example, the indoor unit 10 is fixed to a structural member 1 on the ceiling side of a building. Structural members 1 of buildings include slabs, beams, and girders. The indoor unit 10 is fixed to the structural member 1 by a hanging fitting 2. The indoor unit 10 may be fixed to the structural member 1 with bolts or brackets. The hanging fitting 2 connects the structural member 1 and the indoor unit 10. In one example, for the purpose of suppressing shaking of the indoor unit 10, the indoor unit 10 is installed such that the distance between the structural member 1 and the indoor unit 10 in the vertical direction is 25 cm or less.

<Structure of indoor unit>
As shown in FIGS. 2 and 3, the indoor unit 10 includes an earthquake-resistant structural frame 11, an indoor unit 12, and leg portions 13X. In this embodiment, the leg portions 13X are not included in the earthquake-resistant structure frame 11. Furthermore, the indoor unit 10 includes a unit support section 13 . The unit support section 13 supports the entire indoor unit 10. The unit support portion 13 is configured to extend from the earthquake-resistant structure frame 11 to a position below the lower surface 12B of the indoor unit 12. The unit support section 13 includes leg sections 13X. The unit support portion 13 may include leg portions 13X and wheels 48. The wheels 48 may be removably provided on the leg portions 13X. The wheels 48 may be fixed to the legs 13X. When the legs 13X are provided with wheels 48, the legs 13X have a wheel connection portion 16 on which the wheels 48 are provided. In one example, the wheel connection portion 16 has a threaded hole. In this case, the wheel 48 has a bolt (not shown) that engages with a screw hole in the wheel connection portion 16. In other examples, wheels 48 are secured to wheel connections 16 with bolts and nuts. In yet another example, wheels 48 are secured to wheel connections 16 by welding or rivets.

The indoor unit 12 is a ceiling-embedded duct type. In the ceiling-embedded duct type indoor unit 12, a duct connection port is provided on the side surface.

The indoor unit 12 has a heat exchanger (not shown). The indoor unit 12 has an upper surface 12A, a lower surface 12B, a front surface 12C, a rear surface 12D, and two side surfaces 12E. A coupling portion 15 to which the hanging fitting 14 is coupled is provided on each of the two side surfaces 12E. At each of the two side surfaces 12E, the coupling portion 15 projects in the lateral direction DB. The indoor unit 12 is attached to the earthquake-resistant structure frame 11. A portion of the indoor unit 12 may protrude from the earthquake-resistant structure frame 11.

The indoor unit 12 is arranged under the earthquake-resistant structure frame 11. Note that in this embodiment, the leg portions 13X are not included in the earthquake-resistant structure frame 11. As described later, the leg portion 13X includes a first lower connecting member 33 and a second lower connecting member 34. With this structure, the earthquake-resistant structural frame 11 is reinforced by the lower structure of the leg portions 13X so that it is not easily deformed.

The indoor unit 12 is fixed to the earthquake-resistant structure frame 11 directly or indirectly.
Referring to FIG. 4, an example in which it is directly attached to the earthquake-resistant structure frame 11 will be described. The indoor unit 12 is directly attached to the lower horizontal frame 28 of the earthquake-resistant structure frame 11 (see FIG. 4). The indoor unit 12 may be suspended from the lower horizontal frame 28 of the earthquake-resistant structure frame 11. The indoor unit 12 is supported by two lower horizontal frames 28.

An example in which it is indirectly attached to the earthquake-resistant structure frame 11 will be described. The indoor unit 12 is attached to legs 13X provided on the earthquake-resistant structure frame 11. The indoor unit 12 is arranged below the lower horizontal frame 28 in the earthquake-resistant structure frame 11. The indoor unit 12 is coupled to a portion of the earthquake-resistant structure frame 11 located below the lower horizontal frame 28. As a result, the length of the member (for example, the hanging fitting 14) connecting the earthquake-resistant structure frame 11 and the indoor unit 12 can be made shorter than that of the following reference example. The indoor unit 12 of the reference example is disposed below the lower horizontal frame 28 in the earthquake-resistant structural frame 11 and is coupled to a portion of the earthquake-resistant structural frame 11 located above the lower horizontal frame 28.

<Earthquake-resistant frame and legs>
With reference to FIG. 5, the earthquake-resistant structural frame 11 and leg portions 13X will be described.

The earthquake-resistant structural frame 11 is arranged between the structural member 1 of the building and the indoor unit 12. The earthquake-resistant structural frame 11 is arranged between the structural member 1 and the indoor unit 12 and fixed to the structural member 1 when the indoor unit 12 is arranged below the structural member 1 by a predetermined distance or more. . The predetermined distance is, for example, 25 cm.

Conventionally, when the indoor unit 12 is disposed below the structural member 1 by a predetermined distance or more, the indoor unit 12 is sometimes suspended by a long hanging metal fitting. In this case, the shaking of the indoor unit 12 increases as the building vibrates. In order to suppress such shaking of the indoor unit 12, an earthquake-resistant structure frame 11 is used instead of a long hanging metal fitting.

The earthquake-resistant structure frame 11 is provided with leg portions 13X. The leg portions 13X extend from the earthquake-resistant structure frame 11 to a position below the lower surface 12B of the indoor unit 12. That is, the lower end of the leg portion 13X is located below the lower surface 12B of the indoor unit 12.

The leg portions 13X may be configured separately from the earthquake-resistant structure frame 11, or may be provided integrally with the earthquake-resistant structure frame 11. In this embodiment, the leg portion 13X is configured integrally with the earthquake-resistant structure frame 11. The structure including the earthquake-resistant structure frame 11 and the leg portions 13X will be referred to as a functional frame 11X below.

The functional frame 11X will be explained below.
In the description of the functional frame 11X, the vertical direction DA, the horizontal direction DB, and the depth direction DC are defined based on the attached state in which the functional frame 11X is attached to the structural member 1 (hereinafter referred to as the attached state of the functional frame 11X). . The vertical direction DA is a direction along the up-down direction. The horizontal direction DB is a direction perpendicular to the vertical direction DA. The depth direction DC is a direction orthogonal to the vertical direction DA and the horizontal direction DB.

The functional frame 11X has a frame body 20. The frame body 20 includes a frame-shaped frame portion 20A. In addition to the frame portion 20A, the frame body 20 has an extension portion 20B extending from the frame portion 20A. In the embodiment, the extension 20B is a part of the first vertical frame 25 or the second vertical frame 26 (see FIG. 1).

In one example, the functional frame 11X includes a first frame 21, a rectangular second frame 22 arranged in parallel with the first frame 21, and four connecting members 30. The four connecting members 30 are respectively referred to as a first upper connecting member 31, a second upper connecting member 32, a first lower connecting member 33, and a second lower connecting member 34.

The first frame 21 includes a first vertical frame 25, a second vertical frame 26, an upper horizontal frame 27, and a lower horizontal frame 28. When the first vertical frame 25, the second vertical frame 26, the upper horizontal frame 27, and the lower horizontal frame 28 are collectively referred to, they are simply referred to as the frame 24. Each frame 24 and each connection member 30 are constructed from any one of angle iron, I-beam steel, H-beam steel, square steel pipe, and lip groove steel pipe. The second frame 22 has the same structure as the first frame 21.

In the attached state of the functional frame 11X, the first vertical frame 25 and the second vertical frame 26 extend in the vertical direction DA. The second vertical frame 26 is arranged parallel to the first vertical frame 25 in the horizontal direction DB.

In the attached state of the functional frame 11X, the upper horizontal frame 27 and the lower horizontal frame 28 extend in the horizontal direction DB. The lower horizontal frame 28 is located below the upper horizontal frame 27 and is arranged parallel to the upper horizontal frame 27. The lower horizontal frame 28 is arranged to connect the middle part of the first vertical frame 25 and the middle part of the second vertical frame 26. The intermediate portion of the first vertical frame 25 is any portion between the upper end and the lower end of the first vertical frame 25. The intermediate portion of the second vertical frame 26 is any portion between the upper end and the lower end of the second vertical frame 26.

The first upper connecting member 31 connects the upper end of the first vertical frame 25 of the first frame 21 and the upper end of the first vertical frame 25 of the second frame 22. The second upper connecting member 32 connects the upper end of the second vertical frame 26 of the first frame 21 and the upper end of the second vertical frame 26 of the second frame 22.

The first lower connecting member 33 connects the lower end of the first vertical frame 25 of the first frame body 21 and the lower end of the first vertical frame 25 of the second frame body 22. The second lower connecting member 34 connects the lower end of the second vertical frame 26 of the first frame 21 and the lower end of the second vertical frame 26 of the second frame 22.

The connecting portions between the frames 24 and the connecting portions between the frames 24 and the connecting member 30 are connected to each other by two or more bolts. By connecting with two or more bolts, the positional relationship between the frames 24 that are connected to each other and the positional relationship between the frames 24 and the connecting member 30 that are connected to each other are maintained. In this way, distortion of the functional frame 11X due to shaking is suppressed.

The indoor unit 10 has a first leg 13A and a second leg 13B as the legs 13X. The first leg portion 13A is arranged to face one side surface 12E of the indoor unit 12. The second leg portion 13B is arranged to face the other side surface 12E of the indoor unit 12.

The first leg portion 13A is composed of a lower portion below the intermediate portion of the first vertical frame 25 of the first frame body 21 and a lower portion below the intermediate portion of the first vertical frame 25 of the second frame body 22. be done. The first leg portion 13A includes a first lower connecting member 33.

The second leg portion 13B includes a lower portion below the intermediate portion of the second vertical frame 26 of the first frame 21 and a lower portion below the intermediate portion of the second vertical frame 26 of the second frame 22. be done. The first leg portion 13A includes a second lower connecting member 34.

The first leg portion 13A and the second leg portion 13B are arranged along the side surface 12E of the indoor unit 12. The first leg portion 13A has a support portion 40 extending in the lateral direction DB from the first leg portion 13A. Two support parts 40 are provided on the first leg part 13A.

In one example, the first support portion 41 extends in the horizontal direction DB from the first vertical frame 25 of the first frame body 21 toward the second vertical frame 26. The first support portion 41 is made of angle iron. The second support portion 42 extends in the horizontal direction DB from the first vertical frame 25 of the second frame body 22 toward the second vertical frame 26. The second support portion 42 is made of angle iron.

The second leg portion 13B has a support portion 40 extending in the lateral direction DB from the second leg portion 13B. Two support parts 40 are provided on the second leg part 13B.

In one example, the third support portion 43 extends in the horizontal direction DB from the second vertical frame 26 of the first frame 21 toward the first vertical frame 25. The third support part 43 extends upward to the lower horizontal frame 28, and the upper end of the third support part 43 is connected to the lower horizontal frame 28. The fourth support portion 44 extends in the horizontal direction DB from the second vertical frame 26 of the second frame body 22 toward the first vertical frame 25. The fourth support part 44 extends upward to the lower horizontal frame 28, and the upper end of the fourth support part 44 is connected to the lower horizontal frame 28.

The first support part 41 to the fourth support part 44 are provided at a position below the upper surface 12A of the indoor unit 12. The indoor unit 12 is suspended from the support section 40. Specifically, the first support part 41 to the fourth support part 44 are provided at a position above the joint part 15 of the indoor unit 12. Each of the first to fourth supporting parts 41 to 44 is coupled to the coupling part 15 via the hanging fitting 14. In this way, the indoor unit 12 is supported by the first leg 13A and the second leg 13B.

As shown in FIG. 6, the indoor unit 10 may include four wheels 48. Two wheels 48 are provided at the lower end of the first leg 13A. The wheels 48 may be configured to be detachable from the leg portions 13X.

Specifically, two wheels 48 are removably provided on the first lower connecting member 33 of the first leg portion 13A. The wheels 48 are attached to the first lower connecting member 33 with bolts. Two wheels 48 are removably provided on the second lower connecting member 34 of the second leg portion 13B. The wheels 48 are attached to the second lower connecting member 34 with bolts. The first lower connecting member 33 of the first leg portion 13A is provided with a wheel connecting portion 16 to which a wheel 48 is connected. Similarly, the second lower connecting member 34 of the second leg portion 13B is provided with a wheel connecting portion 16 to which the wheel 48 is connected. The wheel connection portion 16 is provided with a screw hole into which a bolt is engaged. Two of the four wheels 48 are provided with stoppers that stop the wheels 48 from rotating. All four wheels 48 may be provided with stoppers.

The indoor unit 10 may be configured such that other indoor units 10 are loaded thereon. In one example, the lower surface portion 33A of the first lower connecting member 33 of the first leg portion 13A is configured to be placed on the upper surface portion 31A of the first upper connecting member 31. For example, the upper surface portion 31A of the first upper connecting member 31 is configured to have no upwardly projecting convex portion. The lower surface portion 33A of the first lower connecting member 33 is configured to have no convex portion projecting downward.

Similarly, the lower surface portion 34A of the second lower connecting member 34 of the second leg portion 13B is configured to be placed on the upper surface portion 32A of the second upper connecting member 32. For example, the upper surface portion 32A of the second upper connecting member 32 is configured to have no upwardly projecting convex portion. The lower surface portion 34A of the second lower connecting member 34 is configured not to have a convex portion projecting downward.

When another indoor unit 10 is loaded on the indoor unit 10, the first lower connecting member 33 of the upper indoor unit 10 and the first upper connecting member 31 of the lower indoor unit 10 are fastened with bolts. be done. Further, the second lower connecting member 34 of the upper indoor unit 10 and the second upper connecting member 32 of the lower indoor unit 10 are fastened by bolts.

With such a structure, the indoor units 10 can be stacked as shown in FIG. 7. Furthermore, the indoor units 10 can be transported in a stacked state.

As shown in FIGS. 3 and 4, the indoor unit 10 may further include an accessory component 50 connected to the indoor unit 12.
The accessory parts 50 are air conditioning related parts provided directly or indirectly to the indoor unit 12. Examples of the accessory parts 50 include an electric valve box, a refrigerant pipe connected to the indoor unit 12, a drain pipe connected to the indoor unit 12, and a drain pump. A refrigerant pipe coming out of the indoor unit 12 of the indoor unit 10 is connected to the electric valve box. A refrigerant pipe coming out of the indoor unit 12 of another indoor unit 10 may be further connected to the electric valve box.

The accessory part 50 is fixed to the earthquake-resistant structure frame 11. The accessory component 50 may be arranged on the earthquake-resistant structure frame 11 so as to partially protrude from the earthquake-resistant structure frame 11. The accessory parts 50 are arranged so that a space S into which a fork of a forklift can enter from the front or side of the indoor unit 10 is provided in the earthquake-resistant structure frame 11. For example, the accessory component 50 is arranged between the upper horizontal frame 27 and the lower horizontal frame 28 in the vertical direction. The accessory component 50 is arranged between the first vertical frame 25 and the second vertical frame 26 in the horizontal direction DB. Further, the accessory component 50 is arranged between the first frame 21 and the second frame 22 in the depth direction DC. Further, the accessory component 50 is arranged such that a space S is provided between the accessory component 50 and the first vertical frame 25 and between the accessory component 50 and the second vertical frame 26, respectively. The size of the space S is set so that one claw of the fork can be inserted into the space S.

The specific accessory parts 50 are connected to the earthquake-resistant structural frame 11 so as not to come into contact with the indoor unit 12. Thereby, vibrations generated from the accessory component 50 can be suppressed from being transmitted from the accessory component 50 to the indoor unit 12. Further, it is possible to suppress vibrations generated from the indoor unit 12 from being transmitted from the indoor unit 12 to the accessory parts 50. An example of a specific accessory 50 is a motorized valve box.

In one example, the particular accessory 50 is attached to the two intermediate connecting members 36 by means of attachment fittings 51 . The intermediate connecting member 36 is a component that connects the upper horizontal frame 27 of the first frame body 21 and the upper horizontal frame 27 of the second frame body 22. The specific accessory component 50 may be directly provided on the upper horizontal frame 27 of the first frame 21 and the upper horizontal frame 27 of the second frame 22.

<Effect>
The indoor unit 10 has a structure in which the earthquake-resistant structural frame 11 and the indoor unit 12 are integrally coupled, with the indoor unit 12 disposed below the earthquake-resistant structural frame 11. With such an integrated structure, the earthquake-resistant structural frame 11 and the indoor unit 12 can be installed in the structural member 1 of the building all at once.

Conventionally, when the indoor unit 12 is placed at a predetermined position a predetermined distance below the structural member 1, the indoor unit 12 is installed using a hanging fitting. In this case, reinforcement work will be carried out to reinforce the hanging fittings to improve earthquake resistance. In the indoor unit 10 of the present disclosure, the indoor unit 12 is supported by the earthquake-resistant structure frame 11, so such reinforcement work can be omitted.

Moreover, since the indoor unit 12 is protected by the earthquake-resistant structure frame 11 having the leg portions 13X, the indoor unit 10 can be stacked. Since the stacked indoor units 10 can be transported, transport efficiency can be improved. It can contribute to the sustainability of society because it leads to a reduction in the number of transportation trips.

The indoor unit 10 includes leg portions 13X. Therefore, when the indoor unit 10 is placed on the floor, the legs 13X come into contact with the floor, and the indoor unit 12 floats off the floor. Thereby, in the indoor unit 10, the load applied to the indoor unit 12 during transportation or storage can be reduced.

<How to transport the indoor unit>
A method of transporting the indoor unit 10 will be explained. The indoor unit 10 includes an earthquake-resistant structure frame 11, an indoor unit 12 fixed to the earthquake-resistant structure frame 11, and wheels 48 that are detachably attached to the earthquake-resistant structure frame 11. In the method for transporting the indoor unit 10, the indoor unit 10 is transported using the wheels 48. At this time, after a plurality of indoor unit units 10 are loaded, the plurality of loaded indoor unit units 10 (also referred to as stacked indoor unit units 10) may be transported all at once.

A series of operations including a method of transporting the indoor unit 10 will be explained.
The indoor unit 10 is manufactured at a factory. At this time, the wheels 48 are attached to the first leg 13A and the second leg 13B of the indoor unit 10 that is scheduled to be placed at the bottom of the stack. Then, using the wheels 48, the lowest indoor unit 10 is transported to a predetermined location. At a predetermined location, the wheel 48 is locked by a stopper. With the wheels 48 locked, other indoor units 10 are stacked on top of the lowest indoor unit 10. Vertically adjacent indoor units 10 are connected using bolts and nuts. During transportation, the stacked indoor units 10 are loaded onto a truck with the wheels 48 locked. Then, the stacked indoor units 10 are transported to the site by a truck. At the site, the stacked indoor units 10 are lowered by a forklift. At this time, the fork of the forklift is inserted into the space S next to the accessory component 50 in the lowest indoor unit 10. With the fork inserted into the lowest indoor unit 10, the stacked indoor units 10 are lowered. Then, the wheels 48 are unlocked.

Thereafter, as shown in FIG. 8, the stacked indoor units 10 are transported to one of the plurality of installation locations using the wheels 48. After arriving at the installation location, the highest indoor unit 10 among the stacked indoor units 10 is taken down. Thereafter, the stacked indoor units 10 are transported to another installation location.

<Indoor unit construction method>
A construction method for the indoor unit 10 will be explained. The indoor unit 10 includes an earthquake-resistant structure frame 11, an indoor unit 12 fixed to the earthquake-resistant structure frame 11, and wheels 48 that are detachably attached to the earthquake-resistant structure frame 11.

The method for constructing the indoor unit 10 includes a first step, a second step, and a third step. In the first step, the indoor unit 10 is transported to the installation location using the wheels 48. In the second step, the indoor unit 10 is fixed to the ceiling structure 1A at the installation location. In the third step, after fixing the indoor unit 10, the wheels 48 are removed from the indoor unit 10.

In the first step, as in the above-mentioned example of the transport method described for the indoor unit units 10, the stacked indoor unit units 10 are transported to the installation location, and the topmost stacked indoor unit units 10 are transported to the installation location. Lower the indoor unit 10.

As shown in FIG. 9, in the second step, the indoor unit 10 is fixed to the ceiling structure 1A. An example of the ceiling structure 1A is a slab. In one example, the indoor unit 10 is lifted close to the ceiling by a forklift, and the earthquake-resistant structure frame 11 of the indoor unit 10 is fixed to the slab using the hanging fittings 2. The distance between the slab and the earthquake-resistant structural frame 11 is preferably 25 cm or less. The distance between the slab and the seismic structure frame 11 is preferably shorter. In one example, the distance between the slab and the seismic structural frame 11 is 10 cm or less.

As shown in FIG. 10, in the third step, the wheels 48 are removed from the legs 13X of the indoor unit 10 with the wheels 48 attached. Then, the wheels 48 are packed in a return box and sent back to the factory of the manufacturer of the indoor unit 10. Wheel 48 is used repeatedly. Note that the task of removing the wheels 48 may be performed at any timing after the indoor unit 10 has been transported to the installation location. For example, the work of removing the wheels 48 in the third step may be performed before the work of fixing the indoor unit 10 in the second step. Specifically, before fixing the indoor unit 10 to the ceiling structure 1A, the wheels 48 may be removed while being raised slightly from the floor.

<Effect>
The effects of this embodiment will be explained.
(1) The indoor unit 10 includes a unit support portion 13. The unit support portion 13 extends from the earthquake-resistant structure frame 11 to a position below the lower surface 12B of the indoor unit 12. According to this configuration, in the indoor unit 10 having an earthquake-resistant structure, the load applied to the indoor unit 12 during transportation or storage can be reduced.

Here, "the unit support portion 13 extends from the earthquake-resistant structure frame 11 to a position below the lower surface 12B of the indoor unit 12" includes the following first aspect and second aspect. In the first aspect, when the unit support portion 13 is composed of only the leg portions 13X, the leg portions 13X extend to a position below the lower surface 12B of the indoor unit 12. The second aspect is such that when the unit support section 13 is constituted by the legs 13X and the wheels 48, the grounding point of the wheels 48 is located below the lower surface 12B of the indoor unit 12.

(2) The unit support portion 13 includes a leg portion 13X having a wheel connection portion 16. According to this configuration, the wheels 48 can be connected to the leg portions 13X. This makes it easier to transport the indoor unit 10.

(3) The unit support section 13 may include the leg section 13X and the wheel 48 provided at the wheel connection section 16. According to this configuration, the indoor unit 10 can be easily transported.

(4) The wheels 48 may be removably attached to the wheel connection portions 16 of the leg portions 13X. According to this configuration, the wheels 48 can be removed from the leg portions 13X. For example, by removing the wheels 48 after attaching the indoor unit 10 to the ceiling structure 1A, the building material or the decorative panel 18 of the indoor unit 12 can be placed near the wheel connection portion 16.

A specific example will be explained next. After the indoor unit 10 is transported to the installation location, the wheels 48 can be removed. If the wheels 48 are left on after the indoor unit 10 is installed, the height of the indoor unit 10 will become too high and there is a possibility that it will not fit in the attic space. Furthermore, by making the wheels 48 removable, only the wheels 48 can be returned to the assembly factory and used again.

(5) The indoor unit 10 includes leg portions 13X. The leg portions 13X extend from the earthquake-resistant structure frame 11 to a position below the lower surface 12B of the indoor unit 12. Specifically, the lower end of the leg portion 13X is located below the lower surface 12B of the indoor unit 12. According to this configuration, the indoor unit 10 can be placed on the floor or the ground without the wheels 48 being attached to the wheel connecting portion 16 and without the indoor unit 12 coming into contact with the floor or the ground.

A specific example will be explained next. When the indoor unit 10 is placed on the floor, the legs 13X come into contact with the floor and the indoor unit 12 floats off the floor. Therefore, in the indoor unit 10, the load applied to the indoor unit 12 during transportation or storage can be reduced. This reduces the occurrence of situations where the indoor unit 12 is deformed. For example, when unloading the indoor unit 10 from a truck, the legs 13X touch the floor first, but the indoor unit 12 does not come into contact with the floor, so the deformation of the indoor unit 12 due to contact with the floor during unloading will not occur. Hard to occur. Further, even if the storage warehouse shakes due to an earthquake or the like during storage, the indoor unit 12 is not in contact with the floor, so damage to the indoor unit 12 is suppressed.

(6) In one example, the indoor unit 12 is suspended from the lower horizontal frame 28 in the frame 20 of the earthquake-resistant structure frame 11 (see FIG. 4). According to this configuration, compared to the case where the indoor unit 12 is suspended from the upper and horizontal frames 27 of the frame body 20, the shaking of the indoor unit 12 with respect to the earthquake-resistant structure frame 11 at the time of an earthquake is reduced, so that earthquake resistance can be improved.

(7) In another example, the indoor unit 12 is attached to the leg portion 13X. Specifically, the leg portions 13X of the earthquake-resistant structure frame 11 are arranged along the side surface 12E of the indoor unit 12. The leg portion 13X has a support portion 40 extending in the lateral direction DB from the leg portion 13X. The support portion 40 is provided at a position below the upper surface 12A of the indoor unit 12. The indoor unit 12 is suspended from the support section 40. According to this configuration, the length of the hanging fitting 14 can be shortened. Therefore, the amplitude of oscillation of the indoor unit 12 during vibration can be reduced. As a result, compared to the case where the indoor unit 12 is suspended from the upper and horizontal frames 27 of the frame body 20, the shaking of the indoor unit 12 with respect to the earthquake-resistant structure frame 11 at the time of an earthquake is reduced, so that earthquake resistance can be improved.

(8) The indoor unit 10 includes wheels 48. The wheel 48 is provided at the lower end of the leg portion 13X. According to this configuration, the indoor unit 10 is easily transported. The wheel 48 may be provided directly below the lower end of the leg portion 13X. The wheels 48 may be provided on the side surfaces of the lower end portions of the leg portions 13X.

(9) The earthquake-resistant structure frame 11 is configured so that another earthquake-resistant structure frame 11 is loaded thereon. According to this configuration, the plurality of indoor units 10 can be transported in a state in which the plurality of indoor units 10 are stacked (stacked state).

(10) The indoor unit 10 includes an accessory component 50 connected to the indoor unit 12. The accessory part 50 is fixed to the earthquake-resistant structure frame 11. An example of the accessory part 50 is an electric valve box. According to this configuration, the indoor unit 12, the accessory parts 50, and the earthquake-resistant structure frame 11 can be installed all at once.

(11) In the indoor unit 10, the accessory parts 50 are arranged such that the space S is provided within the earthquake-resistant structure frame 11. In the earthquake-resistant structure frame 11, the space S is an area into which a fork of a forklift can enter from the front or side of the indoor unit 10. According to this configuration, the indoor unit 10 is easily transported by a forklift.

(12) The method for transporting the indoor unit 10 includes the step of transporting the indoor unit 10 using the wheels 48. When a trolley is used to transport the indoor unit 10, it is necessary to load the indoor unit 10 onto the trolley, unload the indoor unit 10 from the trolley, and return the empty trolley to its original location. In this regard, the above configuration does not require a trolley during transportation, so these operations can be omitted.

(13) The method of constructing the indoor unit 10 includes a step of transporting the indoor unit 10 using the wheels 48, and a step of removing the wheels 48 from the indoor unit 10 after transporting the indoor unit 10 to the installation location. include.

When a trolley is used to transport the indoor unit 10, it is necessary to load the indoor unit 10 onto the trolley, unload the indoor unit 10 from the trolley, and return the empty trolley to its original location. With the above configuration, these operations can be omitted. Furthermore, the wheels 48 can be removed from the indoor unit 10. Therefore, after the indoor unit 10 is transported to the installation location, the wheels 48 can be removed without leaving them on, so that the height of the indoor unit 10 can be suppressed. Furthermore, by making the wheels 48 removable, only the wheels 48 can be returned to the assembly factory and used again.

(14) In the process of transporting the indoor unit 10, the plurality of indoor units 10 may be transported in a state where the plurality of indoor units 10 are loaded. According to this configuration, since the plurality of indoor units 10 can be transported to the installation location all at once, the efficiency of transporting the indoor units 10 can be improved.

<Second embodiment>
The indoor unit 10 according to the second embodiment will be described with reference to FIGS. 11 to 22. In this embodiment, the same components as those in the first embodiment are given the same reference numerals as those in the first embodiment, and the description of the overlapping components will be omitted.

The indoor unit 10 according to the second embodiment is installed in a ceiling structure 1A. An example of the ceiling structure 1A is a slab. The indoor unit 10 may be installed in an attic space. The indoor unit 10 is arranged in the attic space so that the grill of the indoor unit 12 is exposed indoors. The grill is a part of the indoor unit 12 that includes an air intake port.

<Structure of indoor unit>
As shown in FIG. 11, the indoor unit 10 includes an earthquake-resistant structural frame 11, an indoor unit 12, and leg portions 13X.
The indoor unit 10 includes an earthquake-resistant structural frame 11, an indoor unit 12, and leg portions 13X. In this embodiment, the leg portions 13X are not included in the earthquake-resistant structural frame 11. The indoor unit 10 includes a functional frame 11X. The functional frame 11X includes an earthquake-resistant structural frame 11 and leg portions 13X. The leg portion 13X is constructed integrally with the earthquake-resistant structural frame 11. The functional frame 11X includes a first frame 21 and a rectangular second frame 22 arranged in parallel with the first frame 21. The first frame 21 includes a first vertical frame 25, a second vertical frame 26, an upper horizontal frame 27, and a lower horizontal frame 28.

As shown in FIG. 12, the first vertical frame 25 has a first attachment portion 25A fixed to the support member 62 (see FIG. 14). The first mounting portion 25A has a bolt insertion hole 29 (see FIG. 15) through which a bolt passes. The second vertical frame 26 has a second attachment portion 26A that is fixed to the support member 62 (see FIG. 14). The second mounting portion 26A has a bolt insertion hole 29 through which a bolt passes.

The indoor unit 10 includes a unit support section 13. The unit support section 13 supports the entire indoor unit 10. The unit support portion 13 is configured to extend from the earthquake-resistant structure frame 11 to a position below the lower surface 12B of the indoor unit 12.

The unit support section 13 includes leg sections 13X. In this embodiment, the unit support section 13 includes leg sections 13X and wheels 48. The wheels 48 may be removably provided on the leg portions 13X. The wheels 48 may be fixed to the legs 13X. When the legs 13X are provided with wheels 48, the legs 13X have a wheel connection portion 16 on which the wheels 48 are provided.

The indoor unit 12 is a ceiling-mounted cassette type. In the ceiling-embedded cassette type indoor unit 12, a grill is provided on the lower surface 12B. The grill is exposed to the indoor room space through an opening 4A in the ceiling 4.

Indoor unit 12 has an upper surface 12A, a lower surface 12B, and a side surface 12E. Connecting portions 15 to which the hanging fittings 14 are connected are provided at four locations on the side surface 12E. The four locations where the coupling portions 15 are provided on the side surface 12E are located on diagonal lines when the indoor unit 12 is viewed from above. The coupling portion 15 projects horizontally. The indoor unit 12 is attached to the earthquake-resistant structural frame 11 via a coupling portion 15 . The indoor unit 12 is arranged under the earthquake-resistant structure frame 11. Note that, as described above, the leg portions 13X are not included in the earthquake-resistant structural frame 11.

<Earthquake-resistant frame and legs>
With reference to FIG. 12, the earthquake-resistant structural frame 11 and leg portions 13X will be described. The second embodiment is the same as the first embodiment in that the earthquake-resistant structural frame 11 is arranged between the structural member 1 of the building and the indoor unit 12. The earthquake-resistant structure frame 11 differs from this embodiment in the following points.

The leg portions 13X of the earthquake-resistant structure frame 11 extend from the earthquake-resistant structure frame 11 to a predetermined position between the upper surface 12A and the lower surface 12B of the indoor unit 12. Specifically, the lower end of the leg portion 13X is located below the top surface 12A of the indoor unit 12 and above the bottom surface 12B of the indoor unit 12. The position of the lower surface 12B of the indoor unit 12 indicates the position of the lowest point of the lower surface 12B. In the indoor unit 12, the lowest point of the lower surface 12B is the position of the lower surface of the member constituting the grill.

Furthermore, it is preferable that the leg portion 13X is configured as follows. The leg portion 13X is configured such that the grounding point of the wheel 48 is located below the lower surface 12B of the indoor unit 12 when the wheel 48 is attached to the leg portion 13X. This makes it easier to transport the indoor unit 10 using the wheels 48. In addition, the leg portion 13X is configured such that a space in which the ceiling member 3 can be placed is provided between the lower end of the leg portion 13X and the lower surface 12B of the indoor unit 12 in the vertical direction. Thereby, the ceiling member 3 can be placed between the lower surface 12B of the indoor unit 12 and the lower surface of the ceiling member 3. Therefore, the level difference in the vertical direction between the lower surface 12B of the indoor unit 12 and the lower surface of the ceiling member 3 can be reduced.

The leg portions 13X may be configured separately from the earthquake-resistant structure frame 11, or may be provided integrally with the earthquake-resistant structure frame 11. The functional frame 11X, which is a structure including the earthquake-resistant structural frame 11 and the leg portions 13X, is substantially the same as the first embodiment, and therefore a description thereof will be omitted.

As shown in FIG. 13, the indoor unit 10 may be configured such that other indoor units 10 are loaded thereon. The stacked structure of the indoor units 10 in the vertical direction is also the same as that in the first embodiment, so a description thereof will be omitted.

As shown in FIG. 13, the indoor unit 10 may include four wheels 48. Two wheels 48 are provided at the lower end of the first leg 13A. The wheels 48 may be configured to be detachable from the leg portions 13X. The first leg portion 13A is provided with a wheel connection portion 16 to which a wheel 48 is connected. The second leg portion 13B is provided with a wheel connection portion 16 to which a wheel 48 is connected. The wheel connection portion 16 is provided with a screw hole. The screw hole is configured to engage a bolt for fixing the wheel 48.

A structure for fixing the indoor unit 10 to the structural member 1 of a building will be described with reference to FIGS. 14 to 17.
In the first embodiment, the indoor unit 10 is directly fixed to the structural member 1. In contrast, in this embodiment, the indoor unit 10 is fixed to the structural member 1 via the support member 62. The support structure including the support member 62 (hereinafter referred to as support set 60) allows the position of the indoor unit 10 in the vertical direction to be changed significantly. Specifically, in the first embodiment, the position of the indoor unit 10 can be adjusted within the position adjustment range of the coupling portion 15 with respect to the hanging fitting 14. In contrast, in this embodiment, firstly, the position of the indoor unit 10 can be adjusted by adjusting the length of the support member 62. Second, by positioning the indoor unit 10 with respect to the support member 62, the position of the indoor unit 10 can be adjusted. Thirdly, the position of the indoor unit 10 can be adjusted within the position adjustment range of the coupling portion 15 with respect to the hanging fitting 14.

With reference to FIG. 14, the support set 60 that supports the indoor unit 10 will be described. The support set 60 has four support members 62. The four support members 62 support the indoor unit 10. Specifically, the four support members 62 support the earthquake-resistant structure frame 11. The four support members 62 are arranged parallel to each other so as to hang downward from the ceiling structure 1A.

The support set 60 may include two connection members 63 in addition to the four support members 62 . Adjacent two of the four supporting members 62 are connected by a connecting member 63. The connecting member 63 connects the upper ends of the two supporting members 62. The other two of the four supporting members 62 are connected by another connecting member 63. Another connecting member 63 connects the upper ends of the two supporting members 62.

Two support members 62 adjacent to each other and a connecting member 63 that connects the two support members 62 constitute one support body 61. That is, the support set 60 has two supports 61.

The support member 62 of the support body 61 is fixed to the ceiling structure 1A via a connecting member 63. Specifically, an anchor with which a bolt engages is driven into the ceiling structure 1A. The connecting member 63 of the support body 61 is fixed with a bolt at the place where the anchor is driven.

One support body 61 supports the first side surface portion 55 of the earthquake-resistant structural frame 11 . The other support body 61 supports the second side surface portion 56 of the earthquake-resistant structural frame 11 . The first side surface portion 55 is a portion that includes the first vertical frame 25 of the first frame body 21 and the first vertical frame 25 of the second frame body 22. The second side surface portion 56 is a portion that includes the second vertical frame 26 of the first frame body 21 and the second vertical frame 26 of the second frame body 22.

The first vertical frame 25 is fixed to the support member 62 with bolts and nuts at two locations separated in the vertical direction, with a portion of the first vertical frame 25 overlapping the support member 62. Specifically, a bolt is inserted into a communication hole between the bolt insertion hole 29 of the first vertical frame 25 and the bolt hole 70 of the support member 62 (see FIG. 15), and a nut that engages with the bolt is tightened. Thus, the first vertical frame 25 is fixed. The second vertical frame 26 is fixed to the support member 62 with bolts and nuts at two vertically separated locations using the same fastening method as the first vertical frame 25 .

As shown in FIG. 15, the support member 62 of the support set 60 is provided with a position adjustment section 69 for adjusting the position of the indoor unit 10. The position adjustment section 69 includes a plurality of bolt holes 70. Specifically, the plurality of bolt holes 70 include a first bolt hole 71 having a diameter slightly larger than the diameter of the bolt, and a second bolt hole 72 provided at a position below the first bolt hole 71 by a predetermined distance. include. The second bolt hole 72 includes a hole 72A having a diameter larger than the bolt head, and a notch 72B extending downward from the hole 72A. The notch 72B has the same width as the diameter of the first bolt hole 71. Thereby, the bolt can be hooked into the second bolt hole 72 while the nut is partially tightened onto the bolt with respect to the first vertical frame 25 or the second vertical frame 26. Therefore, by providing the first bolt hole 71 and the second bolt hole 72 in the support member 62, fastening work performed at two locations on the support member 62 can be smoothly performed.

Further, the position adjustment section 69 includes a plurality of first bolt holes 71 and a plurality of second bolt holes 72. The plurality of first bolt holes 71 are arranged at equal intervals in the vertical direction in the support member 62. The plurality of second bolt holes 72 are arranged at equal intervals in the vertical direction in the support member 62. The intervals between the plurality of first bolt holes 71 are equal to the intervals between the plurality of second bolt holes 72.

As shown in FIG. 16, when fixing the first vertical frame 25 and the second vertical frame 26 to the support member 62, by selecting the first bolt hole 71 and the second bolt hole 72 of the position adjustment part 69, The position of the indoor unit 10 in the vertical direction can be adjusted.

Another example of the support set 60 will be described with reference to FIG. 17. In this example, the support set 60 is configured such that the support member 62 can be replaced with another support member 62X. The other support member 62X has the same bolt hole structure as that of the support member 62. The other support member 62X has a length different from the length of the support member 62. The support set 60 may include multiple types of other support members 62X having different lengths.

FIG. 17 shows an example in which another support member 62X shorter than the support member 62 is used instead of the support member 62 shown in FIG. 16. The support member 62 is changed when a building is renovated.

In a newly constructed building, the support member 62 and multiple types of other support members 62X having different lengths from the support member 62 may be prepared. In this case, the support member 62 or support member 62X with an appropriate length can be selected from the support member 62 and a plurality of types of other support members 62X at the construction site.

<Indoor unit construction method>
A construction method for the indoor unit 10 will be explained. The indoor unit 10 includes an earthquake-resistant structure frame 11 and an indoor unit 12 fixed to the earthquake-resistant structure frame 11. The wheels 48 are removably provided on the legs 13X extending from the earthquake-resistant structure frame 11.

The method for constructing the indoor unit 10 includes a transportation process, an installation process, and a wheel recovery process. The conveyance process corresponds to the first process of the first embodiment. The installation process corresponds to the second process of the first embodiment, but since the implementation details are different, it will be described below. The wheel recovery process corresponds to the third process of the first embodiment. The wheel recovery process may be performed at any timing as long as it is after the conveyance process.

An example of the process of installing the indoor unit 10 will be described with reference to FIGS. 18 to 22.
The installation process includes a first process and a second process. The installation process further includes a pre-process, a ceiling member attachment process, and a decorative panel attachment process. Each process is carried out in the order of a pre-process, a first process, a second process, a ceiling member attachment process, and a decorative panel attachment process.

As shown in FIG. 18, in the pre-process, the connecting member 63 of the support body 61 is fixed to the ceiling structure 1A. The connecting member 63 is fixed to the ceiling structure 1A by a bolt that engages with an anchor provided on the ceiling structure 1A. The connecting member 63 supports the support member 62 of the support body 61.

As shown in FIG. 19, in the first step, the earthquake-resistant structure frame 11 is supported at a predetermined location of the ceiling structure 1A at the installation location of the indoor unit 10 so as to correspond to each of the four corners of the earthquake-resistant structure frame 11. Four supporting members 62 are installed. A connecting member 63 is fixed to a predetermined location of the ceiling structure 1A in a previous process.

In the first step, four supporting members 62 are arranged parallel to each other so as to hang downward from the ceiling structure 1A. Specifically, the two supporting members 62 are fixed to one of the connecting members 63 with bolts so as to be parallel to each other. The two supporting members 62 are fixed to the other connecting member 63 with bolts so as to be parallel to each other. At this time, the positions of the four supporting members 62 are adjusted so as to correspond to each of the four corners of the earthquake-resistant structure frame 11.

As shown in FIG. 20, in the second step, the indoor unit 10 is fixed to four support members 62. At this time, the position of the indoor unit 10 is adjusted in the vertical direction. Specifically, in the second step, the four supporting members 62 are placed so that the lower ends of the leg portions 13X are placed at a higher position than the position of the ceiling member 3 attached under the ceiling structure 1A. to adjust the position of the indoor unit 10. Furthermore, the position of the indoor unit 10 with respect to the four support members 62 is adjusted so that the decorative panel 18 attached to the indoor unit 12 is arranged at a lower position than the position of the ceiling member 3. Specifically, the position of the indoor unit 10 is adjusted so that the decorative panel 18 can come into contact with the lower surface 12B of the indoor unit 12 and the lower surface of the ceiling member 3.

As shown in FIG. 21, in the ceiling member attachment process, the ceiling member 3 is attached to the ceiling structure 1A. The ceiling member 3 is suspended from the ceiling structure 1A by, for example, a hanging bolt. The ceiling member 3 is arranged at a predetermined position in the vertical direction. The position of the ceiling member 3 is predetermined in the blueprint of the building. A ceiling 4 is configured by the ceiling member 3. The ceiling member 3 is arranged at a predetermined position such that an opening 4A is provided in a portion of the ceiling 4 corresponding to the indoor unit 10.

As shown in FIG. 22, in the decorative panel attachment process, the decorative panel 18 is attached to the indoor unit 10. The decorative panel 18 is attached to the indoor unit 12 so as to close the gap formed between the indoor unit 10 and the opening 4A of the ceiling 4 when viewed from below. The decorative panel 18 contacts the lower surface 12B of the indoor unit 12 and also contacts the lower surface of the ceiling member 3.

<Effect>
(1) In the indoor unit 10 according to the present embodiment, the lower end of the leg 13X is located below the top surface 12A of the indoor unit 12 and above the bottom surface 12B of the indoor unit 12. According to this configuration, when the decorative panel 18 of the building material or the indoor unit 12 is arranged around the indoor unit 10 attached to the ceiling structure 1A, a part of the decorative panel 18 of the building material or the indoor unit 12 is placed around the indoor unit 10 attached to the ceiling structure 1A. It can be placed under the section 13X. When a building material or a part of the decorative panel 18 of the indoor unit 12 is placed under the leg portion 13X, the lower end of the leg portion 13X is located below the bottom surface of the indoor unit 12 in the vertical direction. , the distance between the lower surface 12B of the indoor unit 12 and the lower surface of the building material or decorative panel 18 can be narrowed. Thereby, the appearance of the area around the indoor unit 12 after the indoor unit 10 is attached to the ceiling structure 1A can be improved.

(2) In the method of constructing the indoor unit 10, in the first step, four supporting members 62 are installed on the ceiling structure 1A. Then, in the second step, the indoor unit 10 is fixed to the four support members 62. In the second step, the indoor unit 10 is attached to the four support members 62 so that the lower end of the leg portion 13X is placed at a higher position than the position of the ceiling member 3 attached under the ceiling structure 1A. Adjust the position. Further, the position of the indoor unit 10 with respect to the four support members 62 is adjusted so that the decorative panel 18 attached to the indoor unit 12 can be placed at a lower position than the ceiling member 3.

According to this configuration, the position of the lower end of the leg portion 13X of the indoor unit 10 is adjusted as described above. Therefore, with the indoor unit 10 attached to the ceiling structure 1A, the lower surface of the ceiling member 3 and the decorative panel 18 of the indoor unit 10 can be brought close to each other in the vertical direction. As a result, the difference in level between the lower surface of the ceiling member 3 and the decorative panel 18 of the indoor unit 10 becomes smaller, so that the appearance of the ceiling 4 can be improved.

(3) In the method for constructing the indoor unit 10, in the support set 60, two adjacent of the four support members 62 are connected by the connection member 63. The other two of the four supporting members 62 are connected by another connecting member 63. According to this configuration, since the support member 62 is reinforced by the connection member 63, the indoor unit 10 can be firmly installed on the ceiling structure 1A.

(Modified example)
In addition to the above embodiments, the indoor unit 10, the transportation method for the indoor unit 10, and the indoor unit 10 of the present disclosure include, for example, the following modifications and at least two mutually consistent modifications. It may also be a combination of.

- The structure of the earthquake-resistant structure frame 11 is not limited to the example shown in the embodiment. For example, in the embodiment, the first vertical frame 25 and the second vertical frame 26 include an extension 20B of the frame 20, which is a component of the leg 13X. On the other hand, the first vertical frame 25 and the second vertical frame 26 may be configured not to include the extension portion 20B of the leg portion 13X. In this case, the leg portion 13X is made of a steel material different from that of the first vertical frame 25 and the second vertical frame 26. In this case, the leg portion 13X may have a frame structure.

- An earthquake-resistant reinforcing member may be further added to the earthquake-resistant structure frame 11. For example, a diagonal member may be provided on the frame portion 20A of the frame body 20 so as to connect two corner portions located at diagonal positions in the frame portion 20A.

- The wheels 48 may be irremovably fixed to the earthquake-resistant structural frame 11. In this case, a cover is provided under the indoor unit 10 so that the wheels 48 are hidden when the indoor unit 10 is attached to the structural member 1 in the ceiling.

- In the second embodiment, the first vertical frame 25 has a first attachment part 25A fixed to the support member 62 (see FIG. 14). The first mounting portion 25A is configured as a bolt insertion hole 29. The first attachment portion 25A may have a structure other than a hole.

For example, as shown in FIG. 23, the first attachment portion 25A may be configured as a protrusion 81 provided with a screw. The protrusion 81 is configured to be engaged by a nut 82. The protrusion 81 is configured to be inserted into a bolt hole 70 provided in the support member 62. The protrusion 81 is welded to the first vertical frame 25. The first vertical frame 25 is fixed to the support member 62 by tightening the nut 82 that engages with the protrusion 81 in a state where a portion of the first vertical frame 25 overlaps the support member 62 . According to the first attachment portion 25A, the number of through holes provided in the first vertical frame 25 can be reduced. Thereby, the strength of the first vertical frame 25 can be increased.

Above, the indoor unit 10, the method for transporting the indoor unit 10, and the embodiment of the indoor unit 10 have been described, but the indoor unit 10, the method for transporting the indoor unit 10, and It will be understood that various changes in form and details can be made without departing from the spirit and scope of the indoor unit 10.

DB... Lateral direction, S... Space, 10... Indoor unit, 11... Earthquake-resistant structure frame, 12... Indoor unit, 12A... Top surface, 12B... Bottom surface, 12C... Front, 12E... Side, 13... Unit support part, 13X... Leg portion, 20... Frame body, 28... Lower horizontal frame, 40... Support part, 48... Wheel, 50... Accessory parts.

Claims (16)

An indoor unit (10),
Earthquake-resistant structural frame (11);
an indoor unit (12) disposed under the earthquake-resistant structure frame (11) and fixed to the earthquake-resistant structure frame (11);
a unit support part (13) extending from the earthquake-resistant structure frame (11) to a position below the lower surface (12B) of the indoor unit (12);
Indoor unit. The unit support part (13) includes a leg part (13X) having a wheel connection part (16).
The indoor unit according to claim 1. The unit support section (13) includes the leg section (13X) and a wheel (48) provided at the wheel connection section (16).
The indoor unit according to claim 2. The wheel (48) is removably provided to the wheel connection portion (16) of the leg (13X).
The indoor unit according to claim 3. The indoor unit according to claim 2, wherein a lower end of the leg (13X) is located below a lower surface (12B) of the indoor unit (12). The lower end of the leg (13X) is located below the top surface (12A) of the indoor unit (12) and above the bottom surface (12B) of the indoor unit (12).
The indoor unit according to claim 2. The earthquake-resistant structure frame (11) has a frame (20),
The indoor unit (12) is suspended from the lower horizontal frame (28) of the frame (20).
The indoor unit according to any one of claims 1 to 6. The leg portion (13X) is arranged along the side surface of the indoor unit (12), and further includes a support portion (40) extending in the lateral direction (DB) from the leg portion (13X),
The support part (40) is provided at a position below the upper surface (12A) of the indoor unit (12),
The indoor unit (12) is suspended from the support section (40).
The indoor unit according to any one of claims 2 to 6. The indoor unit (10) is configured such that another indoor unit (10) is loaded thereon.
The indoor unit according to any one of claims 1 to 6. Further comprising an accessory part (50) connected to the indoor unit (12),
The accessory part (50) is fixed to the earthquake-resistant structural frame (11).
The indoor unit according to any one of claims 1 to 6. The accessory part (50) is arranged such that a space is provided in the earthquake-resistant structural frame (11) for a fork of a forklift to enter from the front or side of the indoor unit (10).
The indoor unit according to claim 10. A method for transporting an indoor unit (10), comprising:
The indoor unit (10) includes an earthquake-resistant structure frame (11), an indoor unit (12) fixed to the earthquake-resistant structure frame (11), and wheels (48) provided on the earthquake-resistant structure frame (11). Equipped with
a step of transporting the indoor unit (10) using the wheels (48);
How to transport the indoor unit. A method for constructing an indoor unit (10), comprising:
The indoor unit (10) includes an earthquake-resistant structure frame (11), an indoor unit (12) fixed to the earthquake-resistant structure frame (11), and wheels ( 48)
a step of transporting the indoor unit (10) to an installation location using the wheels (48);
fixing the indoor unit (10) to the ceiling structure (1A) at the installation location;
and a step of removing the wheels (48) from the indoor unit (10) after transporting the indoor unit (10) to the installation location.
Construction method of indoor unit. The earthquake-resistant structure frame (11) is configured to be loaded with another earthquake-resistant structure frame (11),
In the step of transporting the indoor unit (10) to the installation location using the wheels (48), transporting the plurality of indoor unit units (10) in a state where the plurality of indoor unit units (10) are loaded. do,
The method for constructing an indoor unit according to claim 13. A method for constructing an indoor unit (10), comprising:
The indoor unit unit (10) includes an earthquake-resistant structure frame (11) and an indoor unit (12) fixed to the earthquake-resistant structure frame (11),
Four supports for supporting the earthquake-resistant structure frame (11) are provided on the ceiling structure (1A) at the installation location of the indoor unit unit (10), so as to correspond to each of the four corners of the earthquake-resistant structure frame (11). A first step of installing the member (62);
a second step of fixing the indoor unit (10) to the four supporting members (62),
In the first step, the four supporting members (62) are arranged in parallel to each other so as to hang downward from the ceiling structure (1A),
In the second step, the lower ends of the legs (13X) of the indoor unit (10) are arranged at a higher position than the ceiling member (3) attached under the ceiling structure (1A), Also, the four supporting members (62) are placed in the indoor unit so that the decorative panel (18) attached to the indoor unit (12) is placed at a lower position than the ceiling member (3). Adjust the position of the machine unit (10),
Construction method of indoor unit. Adjacent two of the four supporting members (62) are connected by a connecting member (63),
The other two of the four supporting members (62) are connected by another connecting member (63).
The method for constructing an indoor unit according to claim 15.

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