JP7168637B2 - Construction method of ceiling suspended air conditioner - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ceiling-mounted air conditioner, a method for installing the ceiling-mounted air conditioner, and the like.

In recent years, various techniques have been proposed for facilitating the installation of concealed air conditioners to be installed above the ceiling (see Patent Documents 1 and 2, for example).

Japanese Patent No. 5208841 JP 2019-207092 A JP 2019-207095 A

Concealed type air conditioners installed above the ceiling are usually attached to bar screws (sometimes called "full screws") fixed to the structural materials of the building, and suspended by the bar screws. be installed. Therefore, the mounting portion of the commercially available concealed air conditioner has a structure on the premise that it is installed in such a suspended state. Therefore, in order to facilitate the installation of the air conditioner at the site, for example, when the main body of the air conditioner and the accessory parts are integrated with a frame in the factory and transported from the factory to a remote construction site by vehicle or the like. In order to prevent the mounting part of the air conditioner body that is attached to the frame in a suspended state from causing problems during transportation, the air conditioner body should be installed in a posture that maintains the state in which it is suspended from the frame. Mounting on a vehicle is preferable.

However, the concealed type air conditioner needs to fit in the narrow space above the ceiling. Therefore, like the air conditioner main body, the frame is basically designed to have a laterally elongated external shape in which the horizontal dimension is longer than the vertical dimension. Therefore, when the air conditioner main body and accessories integrated with the frame are mounted on the vehicle, the upper space of the cargo space is left empty despite the fact that it occupies the floor area of the cargo space.

Therefore, for example, in order to efficiently transport the air conditioner by vehicle, the frame that integrates the main body of the air conditioner and the accessory parts is placed on its side, that is, the state in which it is tilted with respect to the hanging direction of the air conditioner installed in the building. By installing it in the vehicle, the upper space of the loading platform may be effectively used. In addition, it may be temporarily tilted in order to pass through a narrow space during transportation. However, if the frame integrated with the air conditioner main body and accessory parts is tilted, as described above, there is a possibility that the mounting portion of the air conditioner main body suspended from the frame may cause problems during transportation.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and a ceiling suspended air conditioning unit that can be transported with the frame tilted even if the air conditioner body is attached to the frame in a suspended state. and to provide a construction method.

In order to solve the above-mentioned problems, the present invention provides restricting means for restricting relative movement of the air conditioner main body with respect to the frame when the frame is tilted from the posture when the air conditioner main body is suspended from the ceiling together with the air conditioner main body. It was to be.

More specifically, the present invention relates to a ceiling-mounted air conditioning unit, which includes a ceiling-mounted air conditioner main body, accessory parts connected to the air conditioner main body, and a ceiling-mounted air conditioner unit that integrally holds the air conditioner main body and the accessory parts. and a mounting portion for ceiling suspension of the air conditioner body is attached to the frame, and when the frame is tilted from the posture of the air conditioner body when suspended from the ceiling together with the air conditioner body, It has restricting means for restricting relative movement of the air conditioner main body with respect to the frame, and the air conditioner main body has a coupler that can be connected to the pipes without tools.

Here, the restricting means is means for restricting relative movement of the air conditioner main body with respect to the frame. The concept includes a form in which the member itself for attaching the main body to the frame restricts the movement of the air conditioner main body.

In the ceiling-mounted air-conditioning unit described above, even when the frame is tilted together with the air-conditioner main body from the posture when the air-conditioner main body is suspended from the ceiling, the relative movement of the air-conditioner main body with respect to the frame is restricted by the restricting means. Therefore, it is possible to prevent damage due to the weight of the air conditioner main body being applied to the vicinity of the mounting portion for ceiling suspension of the air conditioner main body. Therefore, it is possible to transport the frame on which the air conditioner main body is attached in a suspended state, in a state tilted from the suspended posture. In addition, it is possible to easily connect the pipes at the installation location of the ceiling suspended air conditioning unit.

Note that the accessory part is a chamber to which the duct is connected, and may have a connecting portion that allows the duct to be connected without tools. In this case, the connecting portion may be accommodated inside the frame. Also, the connecting part may have a flexible fitting part that fits with the end of the duct that is inserted into the opening. According to this, it is possible to easily connect the duct at the installation location of the ceiling suspended air conditioning unit. In addition, since the connecting portion does not protrude from the frame, the possibility of damaging the connecting portion during transportation of the suspended air conditioning unit is extremely low, and transportation is easy.

In addition, the frame is provided with an auxiliary frame that supports the connection part to which the pipe is connected, and the auxiliary frame has an obstacle prevention means to prevent obstacles from being installed around the ceiling-suspended air conditioning unit. may be provided. According to this, for example, it is possible to prevent an obstacle from being installed in the work space required for maintenance of the ceiling suspended air conditioning unit.

Moreover, the present invention can also be understood from the aspect of the construction method. For example, the present invention provides a construction method for a ceiling-mounted air conditioner that can be installed in a building at a construction site, comprising an assembly work process for assembling and integrating any of the ceiling-mounted air conditioning units outside the construction site; It may have a transportation step of transporting the air conditioning unit to the construction site, and an installation step of installing the suspended air conditioning unit transported to the construction site at a predetermined location in the building. Since the ceiling suspended air conditioning unit can be transported by laying it on its side, for example, by transporting a plurality of ceiling suspended air conditioning units together in a vehicle, it is possible to perform efficient construction. .

Also, in the transportation process, even if the ceiling mounted air conditioning unit is transported to the construction site in a state in which the frame is mounted on the vehicle together with the air conditioner body in an attitude that is tilted from the attitude when the air conditioner body is suspended from the ceiling. good. Since the ceiling suspended air conditioning unit can be transported by laying it on its side, it is possible to increase transportation efficiency by, for example, transporting a plurality of ceiling suspended air conditioning units to a vehicle.

In the transportation process, the ceiling-suspended air conditioning unit is transported to the construction site in a state in which the frame is mounted on a cart in an attitude tilted from the posture of the air-conditioner main body suspended from the ceiling together with the air conditioner main body. The ceiling-suspended air-conditioning unit may be unloaded from the truck in a state in which the ceiling-suspended air-conditioning unit is rotated in the sideways direction together with the side portion that is rotatable with respect to the bottom of the truck. According to this, the suspended air conditioning unit can be easily unloaded from the truck.

In addition, the frame is provided with a hanging part with an insertion hole at a position corresponding to the hanging metal fitting hanging from the ceiling of the building. It may be attached in a state in which a hanging metal fitting is inserted. According to this, it is possible to attach the ceiling suspended air conditioning unit by passing the suspension metal fitting through the insertion hole of the suspension portion.

In addition, the above construction method includes a stacking process of stacking a plurality of ceiling suspended air conditioning units with temporary members attached to the frame so that the air conditioner main body and accessory parts can be lifted from the floor on which the ceiling suspended air conditioning unit is placed. You may have more. According to this, for example, even if the frame of the lower part of the ceiling-suspended air-conditioning unit is omitted, the ceiling-suspended air-conditioning unit can be stacked.

The present invention also provides an obstacle prevention device for use in, for example, a ceiling-suspended air conditioner body, comprising: a cover that covers at least from above a work space set in the air conditioner body; and an air conditioner body and accessory parts. and a fixing means for fixing the cover to the integrally held ceiling suspension frame. According to this, for example, it is possible to prevent an obstacle from being installed in the work space required for maintenance of the ceiling suspended air conditioning unit.

In addition, the present invention provides a carriage for transporting a ceiling suspended air conditioning unit in which a ceiling suspended air conditioner main body and accessory parts connected to the ceiling suspended air conditioner body are integrally held by a ceiling suspended air conditioner frame. A bottom part capable of mounting the suspended air conditioning unit in an attitude tilted from the suspended attitude of the air conditioner main body, and a side part surrounding the ceiling suspended air conditioning unit mounted on the bottom part from the side, the side part comprising: It may be connected to the bottom so as to be rotatable in the sideways direction together with the suspended air conditioning unit. According to this, the suspended air conditioning unit can be easily unloaded from the truck.

Further, the present invention provides a temporary member that can be attached to a ceiling suspended air conditioning unit in which a ceiling suspended air conditioner main body and accessories connected to the air conditioner main body are integrally held by a ceiling suspended frame. a support portion attached to the frame to support the frame; legs extending downward from the support portion; It may have a length that allows the air conditioner main body to float from the floor surface in the folded state. According to this, even if the ceiling suspended air conditioning units do not have the lower frame, the ceiling suspended air conditioning units can be stacked.

With the ceiling suspended air conditioning unit and construction method described above, even if the air conditioner body is attached to the frame in a suspended state, it can be transported with the frame tilted.

FIG. 1 is a diagram showing a state in which a ceiling suspended air conditioning unit is viewed obliquely from above. FIG. 2 is a diagram showing a state in which the ceiling suspended air conditioning unit is viewed from the side. FIG. 3 is a diagram showing a method of mounting a ceiling suspended air conditioning unit on a vehicle. FIG. 4 is a diagram showing an example of a ceiling-suspended air-conditioning unit that is laid on its side on a loading platform of a vehicle. FIG. 5 is a diagram showing a ceiling suspended air conditioning unit placed on a truck. FIG. 6 is a diagram showing an example of the load generated inside the ceiling suspended air conditioning unit. FIG. 7 is a diagram showing members provided in the ceiling suspended air conditioning unit. FIG. 8 is a diagram showing temporary fixing. FIG. 9 is a diagram showing a state in which the temporary fixing is attached. FIG. 10 is an oblique top view of the hanging portion. FIG. 11 is a diagram showing the suspension part from obliquely below. FIG. 12 is a diagram showing a first example of a gauge for positioning the lower end of the hanging bolt. FIG. 13 is a diagram showing a second example of a gauge for positioning the lower end of the hanging bolt. 14A and 14B are diagrams explaining a method of installing a ceiling suspended air conditioning unit using a gauge. FIG. 15 is a diagram showing an example of addition of a support member. FIG. 16 is a diagram showing how the frame is dismantled. FIG. 17 shows a first modification of the ceiling suspended air conditioning unit. 18A and 18B are diagrams showing a state of a pipe connection work. FIG. 19 is a diagram showing how the ducts are connected. FIG. 20 is a diagram comparing the outer dimensions of the ceiling suspended air conditioning unit of the embodiment and the modified example. FIG. 21 is a diagram showing an example of obstacle prevention means provided on the auxiliary frame. FIG. 22 is a diagram showing an example of obstacles. FIG. 23 is a first diagram showing a state in which ceiling suspended air conditioning units are stacked. FIG. 24 is a second diagram showing a state in which the suspended air conditioning units are stacked. FIG. 25 is a modified example of the truck. FIG. 26 is a diagram showing how to use the trolley.

Embodiments of the present invention will be described below. The embodiments shown below are examples of embodiments of the present invention, and the technical scope of the present invention is not limited to the following aspects.

FIG. 1 is a diagram showing a state in which the ceiling suspended air conditioning unit 1 is viewed obliquely from above. FIG. 2 is a diagram showing a state in which the ceiling suspended air conditioning unit 1 is viewed from the side. FIG. 1 shows a state in which the suspended air conditioning unit 1 is suspended from the ceiling by suspension bolts K. As shown in FIG. For convenience of explanation, in this embodiment, the Z-axis direction in FIGS. Defined as the horizontal direction of unit 1. Suspension bolts K for suspending the ceiling-suspended air conditioning unit 1 from the ceiling of a building are usually provided with anti-vibration F as shown in FIG. It is not limited to any form. The anti-vibration provided on the anti-vibration F may, for example, have a cross-type configuration that diagonally intersects when viewed from above. For example, when the ceiling-mounted air-conditioning unit 1 is directly attached to the ceiling, or when the hanging bolts K for hanging the ceiling-mounted air-conditioning unit 1 are extremely short, metal fittings stronger than the hanging bolts K are used for the anti-vibration. It is omitted if the suspended air conditioning unit 1 is rigidly connected to the ceiling. Further, the steady rest is not limited to the form of being attached to the upper and lower parts of the suspension bolt K. For example, even if the upper end is embedded in the ceiling and the lower end is connected to the ceiling suspended air conditioning unit 1 good.

As shown in FIGS. 1 and 2, the ceiling suspended air conditioning unit 1 is an air conditioning unit in which an air conditioner body 3, a supply air chamber 4, and a return air chamber 5 are assembled to a frame 2 to integrate them. The supply air chamber 4 and the return air chamber 5 are examples of "accessory parts" in the present application. The term "accessory parts" as used in the present application refers to general parts related to air conditioning that are used together with the air conditioner body 3. In addition to the supply air chamber 4 and the return air chamber 5, for example, various chambers, refrigerant pipes, water pipes, etc. , drain pipes, drain pumps, dampers, intake/exhaust grills, filters, and various other air conditioning related parts. The ceiling suspended air conditioning unit 1 is installed in a narrow space between the floor that constitutes the floor surface of the upper floor or roof of the building and the decorative ceiling panel that constitutes the ceiling surface of the floor on which the ceiling suspended air conditioning unit 1 is installed. Installed in the attic space. Therefore, as shown in FIG. 1, the ceiling suspended air-conditioning unit 1 basically has a laterally long external shape in which the horizontal dimension is longer than the vertical dimension.

When the ceiling-mounted air-conditioning unit 1 is installed on the back side of the ceiling panel, the ceiling-mounted air-conditioning unit 1 is hidden. However, the ceiling suspended air conditioning unit 1 is not limited to such a configuration in which it is installed in a concealed state. For example, if a decorative ceiling panel is not installed on the ceiling, the suspended air conditioning unit 1 will be visible to people in the room.

The suspension bolt K may be screwed into a suspension bolt support nut embedded in the floor concrete that constitutes the floor. It may be screwed to various members such as a hanger.

As shown in FIGS. 1 and 2, the ceiling suspended air conditioning unit 1 has a supply air chamber 4 connected to the air outlet side of the air conditioner body 3 and a return air chamber 5 connected to the air intake side of the air conditioner body 3. is doing. Therefore, the ceiling suspended air conditioning unit 1 has the air conditioner main body 3 disposed in the center of the frame 2 and sandwiched between the air supply chamber 4 and the return air chamber 5 . The connecting portion between the air conditioner main body 3 and the supply air chamber 4 and the connecting portion between the return air chamber 5 and the supply air chamber 4 are flexibly connected so that they are relatively movable to some extent. That is, the other opening to be fitted into one of the openings is manufactured to be slightly smaller, and by adopting a form in which the gap between the openings is filled with a sealing material such as a flexible sponge packing for airtightness, there is some relative movement. It has a flexible connection structure that allows

First, the air conditioner body 3 will be described. The air conditioner main body 3 is a package unit containing a coil through which a heat medium for temperature adjustment flows inside a rectangular housing 31 and an electric fan for blowing air. Piping 33 is also provided. Examples of the auxiliary device 32 include a valve for switching the flow path of the heat medium pipe through which the heat medium flows through the coil, and a drain pump for draining a drain pan that receives water condensed in the coil.

The air conditioner main body 3 is supported by attaching a ceiling attachment portion 34 provided on the outer surface of the housing 31 to a suspension metal fitting 26 provided on the frame 2 . Since the air conditioner main body 3 is a ready-made device that is assumed to be used in a suspended state by a suspension metal fitting such as a suspension bolt K provided in a building, the ceiling suspension mounting portion 34 is also a suspension bolt K. It is designed to be attached to a hanging bracket such as Therefore, in the ceiling-suspended air conditioning unit 1 of the present embodiment, the suspension metal fittings 26 provided on the frame 2 are shaped like such suspension metal fittings, so that the air conditioner main body 3 can be suspended within the frame 2. Designed to be lowered. In addition, since the air conditioner main body 3 incorporates an electric fan, a vibration isolating rubber 35 (an example of the "vibration isolating member" referred to in the present application) is provided in the ceiling mounting portion 34. Vibration that is transmitted from the air conditioner body 3 to the frame 2 is blocked by the anti-vibration rubber 35 . As a result, generation of abnormal noise or the like due to resonance of the frame 2 due to vibration generated by the air conditioner main body 3 is suppressed as much as possible. Since the anti-vibration rubber 35 is designed to have a permissible vibration isolation direction that allows movement for vibration isolation, when it is transported under a load, it is not in the permissible vibration isolation direction. It is desired that the direction of the load (the direction of gravity) is approximately the same. The means for isolating the vibration of the air conditioner main body 3 is not limited to the mode in which the vibration isolator 35 is interposed between the frame 2 and the air conditioner main body 3 as described above. For example, a spring or rubber may be provided at the connecting portion between the frame 2 and the suspension bolt K. However, in this case, since the frame 2 can move relative to the hanging bolts K, the frame 2 itself does not have earthquake resistance. Therefore, from the viewpoint of ensuring the earthquake resistance of the entire ceiling-suspended air conditioning unit 1, in this embodiment, the connecting portion between the frame 2 and the hanging bolts K is rigidly connected so that the frame 2 itself has an earthquake-resistant structure. In addition, a vibration isolator 35 is interposed between the frame 2 and the air conditioner main body 3 .

Next, the air supply chamber 4 will be explained. The air supply chamber 4 is a chamber for diverting the conditioned air blown out from the air conditioner main body 3 to a plurality of air supply ducts stretched around various parts of the building. Therefore, a plurality of connection openings 42 for connecting air supply ducts are provided in a rectangular housing 41 that forms the internal space of the chamber. 1 and 2, the housing 41 is provided with six connecting openings 42, but the number of connecting openings 42 depends on the size of the housing 41, the diameter of the connecting openings 42, and the like. to be changed accordingly. Also, the air supply chamber 4 is not limited to the form in which the air supply ducts are connected to all the six connection openings 42 . The number of air supply ducts actually connected to the air supply chamber 4 corresponds to the number of air supply ducts provided at the location where the ceiling suspended air conditioning unit 1 is installed. Therefore, if, for example, two air supply ducts are provided at the location where the ceiling-suspended air conditioning unit 1 is installed, four of the six connection openings 42 in the air supply chamber 4 are closed. used as is. Therefore, it is also possible to omit the connection openings 42 whose opening portions are closed in advance, and to manufacture the air supply chamber 4 in which only the required number of connection openings 42 are provided and incorporate it into the ceiling suspended air conditioning unit 1 . However, in this embodiment, in order to improve construction efficiency and shorten the time required to manufacture members, it is proposed to prepare a large number of common ceiling suspended air conditioning units 1 that can be applied to various installation locations. However, the suspended air conditioning unit 1 disclosed in the present application is not limited to such a form that can be commonly applied to various places. The ceiling-suspended air conditioning unit 1 may be provided with an air supply chamber 4 having a number of connection openings 42 corresponding to the installation location.

Next, the return air chamber 5 will be explained. The return air chamber 5 is a chamber for merging the air flowing from a plurality of return air ducts stretched throughout the building. Therefore, the return air chamber 5 is also provided with a plurality of connection openings for connecting the return air ducts, as in the supply air chamber 4 . Like the supply air chamber 4, the return air chamber 5 also adopts a form in which a large number of connection openings are provided so that it can be applied to various installation locations. It may be provided with a return air chamber 5 having a number of connection openings corresponding to the number of openings.

Unlike the air conditioner body 3, the supply air chamber 4 and the return air chamber 5 do not incorporate a drive unit such as an electric fan, and thus basically do not generate vibrations. Therefore, in this embodiment, the air supply chamber 4 and the return air chamber 5 are attached to the frame 2 without a component such as a rubber vibration isolator that cuts off vibration transmission. However, the ceiling suspended air conditioning unit 1 is not limited to such a form. The ceiling suspended air conditioning unit 1 may have, for example, the supply air chamber 4 and the return air chamber 5 attached to the frame 2 via anti-vibration rubber. Further, the ceiling suspended air conditioning unit 1 may have a form in which the supply air chamber 4 and the return air chamber 5 are attached to the frame 2 by members having a suspension structure like the air conditioner main body 3, for example.

In this way, the ceiling suspended air conditioning unit 1 that integrates the air conditioner main body 3, the supply air chamber 4, and the return air chamber 5 is compared to the air conditioner main body 3, the air supply chamber 4, and the return air chamber 5 individually. , naturally heavy. Therefore, weight reduction is required so that it can be lifted by an indoor aerial work platform and attached to the vicinity of the ceiling of a building. Therefore, in the ceiling suspended air-conditioning unit 1 of the present embodiment, the frame 2 is made of an aluminum member. Therefore, even in the portion where the angle members 21 constituting the frame 2 are fastened together, by fastening the rib plates 22 and 23 with bolts, sufficient strength can be exhibited as compared with the case where the angle members 21 are welded together. I have to. Further, in order to strengthen the strength near the ends of the frame 2 , bar screws 25 are provided to fasten the ends of the angle members 21 to each other at portions corresponding to the corners of the frame 2 . In addition, among the fastening portions of the plurality of angle members 21 on the frame 2, one rib is provided for each portion of the portion (the portion denoted by reference numeral 23) where a load is applied in the direction along the plate surface of the rib plate (surface direction). While the plate 23 is provided, two rib plates 22 are provided for each portion (portion 22) where a load is applied in the direction of bending the rib plate. By fastening the angle members 21 in such a manner that the angle member 21 is sandwiched between the two rib plates 22, the rib plate 22 is prevented from being deformed or damaged by the load. For example, as can be seen from FIG. 1, the suspending portion 24 provided on the frame 2 for attaching the suspended air conditioning unit 1 to the suspending bolts K suspends it from the middle of the angle member 21 extending in the lateral direction. Therefore, when the ceiling suspended air conditioning unit 1 is suspended by the suspension bolts K, the entire load of the ceiling suspended air conditioning unit 1 is applied to the ends of the angle members 21 . Therefore, providing two rib plates 22 at such locations is effective in ensuring the strength of the frame 2 .

FIG. 3 is a diagram showing a method of mounting the ceiling suspended air conditioning unit 1 on a vehicle. As described above, the ceiling-suspended air conditioning unit 1 is installed in a narrow space above the ceiling between the floor and the ceiling panel, so the horizontal dimension is longer than the vertical dimension. It has become. The air conditioner main body 3 is suspended within the frame 2 by a suspension metal fitting 26 provided on the frame 2 . Therefore, for example, when transporting the ceiling-mounted air-conditioning unit 1 assembled at a factory to a construction site, normally, as shown in FIG. It will be loaded flat as it is on the loading platform. However, in this case, the upper space of the loading platform of the ceiling suspended air conditioning unit 1 is not effectively utilized, and the ceiling suspended air conditioning unit 1 cannot be transported efficiently. Therefore, for example, as shown in FIG. 3B, it is conceivable to load the suspended air conditioning unit 1 on the carrier of the vehicle V in a sideways state. If the ceiling-suspended air-conditioning unit 1 is laid sideways and loaded on the cargo bed of the ceiling-suspended air-conditioning unit 1, the upper space of the cargo bed of the vehicle V can be effectively utilized.

FIG. 4 is a diagram showing an example of the ceiling suspended air conditioning unit 1 loaded on the carrier of the vehicle V in a sideways state. When the ceiling-suspended air conditioning unit 1, whose horizontal dimension (along the XY plane) is longer than its vertical dimension (Z-axis direction), is laid on the loading platform of the vehicle V, the upper space of the loading platform of the vehicle V becomes large. can be effectively utilized. When the ceiling-mounted air-conditioning unit 1 is turned over, for example, as shown in FIG. When the unit 1 is laid on its side, the auxiliary machine 32 and the incidental piping 33 do not interfere with the floor or wall surface of the cargo bed, so that the suspended air conditioning unit 1 can be easily loaded on the cargo bed. In addition, loading and unloading onto the vehicle V is further facilitated by mounting the suspended air-conditioning unit 1 on a carriage as described below and mounting it on the loading platform of the vehicle V. FIG.

FIG. 5 is a diagram showing the ceiling suspended air conditioning unit 1 placed on the truck D. As shown in FIG. The carriage D has four wheels D2 on the lower surface of a flat base D1 on which the suspended air conditioning unit 1 is placed. The carriage D also has four auxiliary rods D3 erected upward from the edge of the pedestal D1. Therefore, the worker who transports the ceiling-hung air-conditioning unit 1 places the ceiling-hung air-conditioning unit 1 on the pedestal D1 of the cart D, and then manually pushes the ceiling-hung air-conditioning unit 1 and the auxiliary rod D3 to roll the wheels D2. can move the suspended air conditioning unit 1 smoothly. Further, since the auxiliary rod D3 is erected so as to surround the ceiling-suspended air-conditioning unit 1, for example, the ceiling-suspended air-conditioning unit 1 mounted on the carrier of the vehicle V while being mounted on the truck D can be Even if the air-conditioning unit 1 is shaken, the ceiling-suspended air-conditioning unit 1 is not displaced on the upper surface of the pedestal D1 and the ceiling-suspended air-conditioning unit 1 does not drop from the carriage D.

However, when the ceiling-mounted air-conditioning unit 1 is laid sideways and transported as described above, the following loads are generated in the ceiling-mounted air-conditioning unit 1 . FIG. 6 is a diagram showing an example of the load generated inside the ceiling suspended air conditioning unit 1. As shown in FIG. For example, as shown in FIG. 6, when the ceiling-mounted air-conditioning unit 1 is turned over so that the X-axis direction faces downward, the frame 2, the air conditioner main body 3, and the ceiling-mounted air-conditioning unit 1 are placed. Gravity acts on the air supply chamber 4 in the X-axis direction. As described above, the air conditioner main body 3 is attached to the frame 2 in a state of being suspended along the Z-axis direction by the suspension metal fittings 26 . Therefore, when the ceiling suspended air conditioning unit 1 is turned over, the air conditioner body 3 moves relative to the frame 2 in a direction lateral to the hanging direction of the hanging metal fittings 26, that is, in the direction indicated by the arrow in FIG. there is a possibility. When the air conditioner main body 3 moves laterally with respect to the hanging direction of the hanging metal fittings 26, the hanging metal fittings 26 connecting the frame 2 and the air conditioner main body 3 are deformed, or the ceiling mounting is damaged. There is a possibility that the anti-vibration rubber 35 between the portion 34 and the suspension metal fitting 26 will be damaged.

Therefore, in the ceiling suspended air conditioning unit 1 of the present embodiment, the following measures are taken to prevent such problems. FIG. 7 is a diagram showing members provided in the ceiling suspended air conditioning unit 1. As shown in FIG. As shown in FIG. 7, the ceiling suspension air conditioning unit 1 of the present embodiment is provided with temporary fixings 6 in the ceiling suspension mounting portion 34 . Further, the frame 2 is provided with a support member 27 that limits the relative movement of the air conditioner body 3 with respect to the frame 2 within a predetermined range. Since the support member 27 limits the relative movement of the air conditioner main body 3 with respect to the frame 2 within a predetermined range, the support member 27 does not contact the frame 2 when the ceiling suspended air conditioning unit 1 is in a normal posture. Therefore, when the ceiling-suspended air conditioning unit 1 is laid down with the X-axis facing downward and the air conditioner body 3 moves in the X-axis direction by its own weight, the support member 27 provided on the frame 2 does not support the air conditioning unit. The air conditioner main body 3 comes into contact with the air conditioner main body 3 and is in a state as if the air conditioner main body 3 is supported by the support member 27 from below. Also, the anti-vibration rubber 35, which is originally assembled on the premise that a load is applied along the Z-axis, is temporarily adjusted so that the load in the X-axis direction of the air conditioner main body 3 is not applied to the frame 2. A stop 6 regulates the relative movement between the hanging metal fitting 26 and the mounting portion 34 for ceiling suspension. The temporary fixing 6 is removed after transportation of the suspended air conditioning unit 1 is completed.

FIG. 8 is a diagram showing the temporary fixing 6. As shown in FIG. The temporary fixing 6 is a U-shaped metal member when viewed in cross section, and has a flat rectangular top plate portion 61 and side wall portions 62 provided along two long sides of the top plate portion 61 . The top plate portion 61 is provided with a notch portion 63 having a slightly larger outer diameter than the hanging metal fitting 26 . The temporary fixing 6 is a temporary fixing for transportation that is attached when the ceiling suspended air conditioning unit 1 is transported. Such a temporary fixing 6 is attached to the ceiling attachment portion 34 in the following state.

9A and 9B are diagrams showing an attached state of the temporary fixing 6. FIG. The temporary fixing 6 is pressed against the upper surface of the top plate portion 61 by a nut screwed onto the hanging metal fitting 26 . Then, the lower ends of the two side wall portions 62 along the long side of the top plate portion 61 press the mounting portion 34 for suspension by the pressing force of the nut pressing the upper surface of the top plate portion 61, thereby the suspension metal fitting is pressed. 26 and the mounting part 34 for ceiling suspension are prevented from moving relative to each other due to deformation of the rubber vibration isolator 35.例文帳に追加Further, the pressing force applied by the side wall portion 62 of the temporary fixing 6 to the ceiling mounting portion 34 matches the direction of the load assumed in the design of the anti-vibration rubber 35 . Therefore, as long as the nut that presses the top surface of the top plate portion 61 is not excessively tightened, the pressing force is unlikely to destroy the anti-vibration rubber 35 .

As described above, since the ceiling suspended air conditioning unit 1 is provided with the temporary fixing 6 and the support member 27, even if the ceiling suspended air conditioning unit 1 is placed sideways in order to be placed on the loading platform of the vehicle V, Relative movement of the air conditioner body 3 is restricted. Therefore, even if the air conditioner main body 3 is attached to the frame 2 in a suspended state, the hanging metal fitting 26, the mounting portion 34 for ceiling suspension, and the anti-vibration rubber 35 are not damaged by the air conditioner main body 3's own weight. Therefore, the ceiling-suspended air conditioning unit 1 of the present embodiment can be efficiently mounted in the limited space of the cargo bed of the vehicle V. As shown in FIG. In FIG. 3A, the ceiling-suspended air conditioning unit 1 is illustrated in a non-stackable form, but the ceiling-suspended air conditioning unit 1 of this embodiment is not limited to being non-stackable. The suspended air conditioning unit 1 of the present embodiment may be stacked in a plurality of stages in a flat state. Even if the ceiling-mounted air-conditioning unit 1 can be stacked in a plurality of tiers, the ceiling-mounted air-conditioning unit 1 may be temporarily tilted during, for example, loading and unloading from a vehicle V or transportation within a building. If the ceiling suspended air conditioning unit 1 can be tilted sideways, the installation work will be easy.

By the way, in the above-described embodiment, the air conditioner main body 3 is hung by the hanging metal fittings 26 provided on the frame 2, but the ceiling suspended air conditioning unit 1 is not limited to such a form. do not have. The ceiling-suspended air conditioning unit 1 may be, for example, one in which the air conditioner main body 3 is fixed to the frame 2 in a non-suspended state by a member thicker and stronger than the suspension metal fittings 26 . In such a case, the member can restrict the relative movement of the air conditioner main body 3 with respect to the frame 2 . Therefore, this member can be regarded as a restricting means for restricting the relative movement of the air conditioner main body 3 with respect to the frame 2, instead of the temporary fixing 6 and the support member 27 described above.

In the above-described embodiment, since the auxiliary machine 32 and the incidental piping 33 protrude from the substantially rectangular frame 2, only one support member 27 is provided on the frame 2. In the case where the frame 2 can be oriented sideways in both directions in which the X-axis direction faces upward and downward, two or more supporting members 27 may be provided on the frame 2 .

Further, in the above-described embodiment, the configuration in which the ceiling-mounted air-conditioning unit 1 is placed on the bed of the vehicle V in a sideways state has been exemplified. It is not limited to application to If the carrier of the vehicle V has enough space, it is of course possible to transport the suspended air conditioning unit 1 in a flat state. However, even in such a flat state, the ceiling suspended air conditioning unit 1 may shake or tilt during transportation. It is effective to provide regulatory means to regulate.

By the way, the positional accuracy of the hanging bolts K provided in the building varies depending on the construction site. Therefore, in the ceiling-mounted air-conditioning unit 1 of the above-described embodiment, even if the positional accuracy of the hanging bolts K is low, the hanging bolts provided on the frame 2 can be installed smoothly at the construction site. The position of the portion 24 can be finely adjusted. FIG. 10 is an oblique top view of the hanging portion 24 . Also, FIG. 11 is a diagram showing the hanging portion 24 from obliquely below. As shown in FIGS. 10 and 11, the hanging portion 24 is formed by providing an insertion hole 24b and an adjustment hole 24c in an angle member 24a. A suspension bolt K is inserted through the insertion hole 24b. A high-strength bolt 24d is inserted through the adjustment hole 24c. The high-strength bolt 24d is inserted through a plurality of suitable holes provided in the angle member 21 to allow fine adjustment of the position, and is screwed with the nut 24e so that the angle member 24a is attached to the angle member 21. in an appropriate position. Further, in order to make the position adjustment of the suspending portion 24 more flexible, the adjustment hole 24c is elongated as shown in FIG. Therefore, the high-strength bolt 24 d and the nut 24 e for fixing the hanging portion 24 to the angle member 21 must firmly fix the angle member 24 a to the angle member 21 . Therefore, in this embodiment, a high-strength bolt 24d is used as a bolt for fixing the angle member 24a to the angle member 21. The high-strength bolt 24d also constrains the direction of rotation about the bolt axis.

When attaching the ceiling-mounted air conditioning unit 1 to the ceiling of a building, lift the ceiling-mounted air conditioning unit 1 to the vicinity of the ceiling while the high-strength bolts 24d and nuts 24e are still loosened, and insert the hanging bolts into the insertion holes 24b of the hanging portion 24. Insert K. A nut is screwed onto the lower end of the suspension bolt K to fix the suspension part 24 to the suspension bolt K, and the suspension part 24 is fixed to the angle member 21 by tightening the high-strength bolt 24d and the nut 24e. When the suspension bolt K is inserted through the insertion hole 24b by lifting the ceiling-suspended air conditioning unit 1 to the vicinity of the ceiling, if the suspension bolt K cannot be inserted through the insertion hole 24b because the positional accuracy of the suspension bolt K is too low, The position of the hole of the angle member 21 through which the high-strength bolt 24d is inserted is appropriately changed.

Since the ceiling suspended air conditioning unit 1 is provided with the suspending portion 24 that allows the position of the insertion hole 24b through which the suspending bolt K is inserted to be freely changed, the installation can be performed in a factory located far from the construction site. Even the assembled ceiling suspended air conditioning unit 1 can be installed smoothly at a construction site. However, the ceiling-suspended air conditioning unit 1 is not limited to the form having such a suspending portion 24 . If it is applied to a construction site where the positional accuracy of the hanging bolt K is high, the hanging part 24 is omitted, and the hanging bolt K is inserted through the hole provided in the angle member 21 to attach the ceiling suspended air conditioning unit 1. good too.

As means for smoothly attaching the ceiling suspended air-conditioning unit 1 assembled in a factory to the suspension bolts K at the construction site, in addition to the above-described means for providing the suspension portion 24 to the frame 2, for example, the following means.

FIG. 12 is a diagram showing a first example of a gauge for positioning the lower end of the hanging bolt K. As shown in FIG. The position of the lower end of the hanging bolt K is determined by attaching a steady rest F to the hanging bolt K. Therefore, when attaching an air conditioner in which the position of the hole for inserting the hanging bolt K is determined to some extent like the hanging portion 24 of the ceiling suspended air conditioning unit 1 of the above embodiment, the lower ends of the hanging bolt K A gauge 7 in which positioning holes 72 for defining the positional relationship are provided at the four corners of a gauge body 71 made of a plate material is prepared. is attached to the suspension bolt K, the ceiling suspension air conditioning unit 1 can be smoothly assembled to the suspension bolt K. Further, if the manhole 73 is provided in the gauge 7, the anti-vibration F can be easily attached to the suspension bolt K in a state where the lower ends of the suspension bolt K are aligned with each other with the gauge 7. Note that the gauge 7 is not limited to one made of a plate material. 13A and 13B are diagrams showing a second example of a gauge for positioning the lower end of the suspension bolt K. FIG. The gauge 7 may be formed of a gauge body 71 formed by joining four angle members in a rectangular shape, for example. A method of mounting the ceiling suspended air conditioning unit 1 using the gauge 7 will be described below.

14A and 14B are diagrams explaining a method of mounting the ceiling suspended air conditioning unit 1 using the gauge 7. FIG. By using the gauge 7, construction work can be performed in the following order. That is, as shown in FIG. 14A, the worker M prepares the steady rest F and the gauge 7 in a state where the steady rest F is not attached to the suspension bolt K. As shown in FIG. Then, the vehicle for aerial work S is used to approach the ceiling T. Next, as shown in FIG. 14(B), the worker M inserts the lower end of each suspension bolt K into four positioning holes 72 provided in the gauge 7 and temporarily fastens them with nuts or the like. Then, the worker M puts the upper half of the body above the gauge 7 through the manhole 73 of the gauge 7 and attaches the anti-vibration F to the hanging bolt K. When the anti-vibration F is attached to the suspension bolt K, the position of the lower end of the suspension bolt K is fixed by the anti-vibration F, so even if the gauge 7 is removed, the position of the lower end of the suspension bolt K is maintained. After completing the installation of the steady rest F, as shown in FIG. Then, the suspended air conditioning unit 1 is attached to the suspension bolt K. This completes the attachment of the ceiling suspended air conditioning unit 1 as shown in FIG. 14(D).

When the ceiling suspended air conditioning unit 1 is attached to the suspension bolt K without using the gauge 7, the lower end of the suspension bolt K must be actually attached to the suspension bolt K. It cannot be aligned to the lower portion 24 . Therefore, the anti-vibration F cannot be attached to the suspension bolt K before attaching the ceiling-suspended air conditioning unit 1 to the suspension bolt K. Then, when attaching the anti-vibration F to the suspension bolt K after attaching the ceiling-suspended air conditioning unit 1 to the suspension bolt K, as shown in FIG. It is impossible to put down and attach the steady rest F to the hanging bolt K. Therefore, the worker M needs to move the aerial work vehicle S little by little so as to go around the ceiling-suspended air conditioning unit 1 attached to the suspension bolt K while performing the work of attaching the anti-vibration F. For this reason, the work time required for mounting the steady rest F is long. In addition, since it is necessary to attach the ceiling-suspended air conditioning unit 1 to the hanging bolt K whose lower end is not positioned by the gauge 7, the ceiling-suspended air conditioning unit 1 must be attached to the ceiling-suspended air conditioning unit 1 even when the hanging bolt K is attached to the ceiling suspended air conditioning unit 1. Adjustment work such as changing the position of the hanging portion 24 is required after lifting the aerial work vehicle S to the vicinity of the ceiling, and mounting the ceiling-suspended air conditioning unit 1 on the hanging bolt K is not easy.

In this regard, if the mounting method shown in FIG. Both the work of attaching and the work of attaching the anti-vibration F to the suspension bolt K can be performed very easily. Therefore, for example, at a construction site where it is necessary to install a plurality of the same ceiling-mounted air conditioning units 1, it is necessary to attach the anti-vibration F to the suspension bolt K even before the ceiling-mounted air conditioning units 1 arrive at the construction site. can be done in advance. Then, the ceiling suspended air conditioning units 1 can be attached to the hanging bolts K one after another as soon as the production of the ceiling suspended air conditioning units 1 is completed and they arrive at the construction site from the factory. Furthermore, as described above, if the air supply chamber 4 and the like have a configuration that can be commonly applied to various locations, when the ceiling suspended air conditioning units 1 are attached to the suspension bolts K one after another, the mounting location of the ceiling suspended air conditioning unit 1 can be changed. There is no fear of making a mistake.

This mounting method using the gauge 7 is not limited to the mounting of the ceiling suspended air conditioning unit 1 in which the air conditioner main body 3, the supply air chamber 4, and the return air chamber 5 are integrated with the frame 2. Such a mounting method using the gauge 7 can be similarly applied, for example, when various air conditioners such as the air conditioner main body 3 and the air supply chamber 4 are individually mounted on the hanging bolt K. Further, the gauge 7 may have a telescopic function and can correspond to various positional relationships, or the positioning holes 72 may be provided in a plurality of models in order to correspond to various kinds of ceiling-suspended air conditioning units 1. may be provided separately. Moreover, in the fixing work performed when fixing the hanging bolt K to the ceiling, it may be used as a gauge at the time of insert construction for embedding the anchor nut in the ceiling.

By the way, as in the above-described embodiment, when the ceiling-mounted air-conditioning unit 1 manufactured at the factory is transported to the construction site by the vehicle V and installed, the ceiling-mounted air-conditioning unit 1 is exposed to wind and rain during transportation. In order to prevent this, it is conceivable to transport the suspended air-conditioning unit 1 while covered with a protective cover. In this case, the cover may be removed from the ceiling-hung air-conditioning unit 1 when attaching the ceiling-hung air-conditioning unit 1 to the suspension bolt K. 1 may be attached to the hanging bolt K. At the construction site where the ceiling-mounted air-conditioning unit 1 is installed, in addition to the construction of the air-conditioning equipment such as the installation of the ceiling-mounted air-conditioning unit 1, for example, various materials are sprayed for the purpose of soundproofing and heat insulation, interior finishing and various types of work are performed. Scattering of dust, etc., associated with work, etc., may occur. Therefore, in order to protect the ceiling-mounted air-conditioning unit 1 from such flying objects, it is rational to attach the ceiling-mounted air-conditioning unit 1 covered with a cover to the suspension bolt K as it is. Various covers are conceivable as a cover for the ceiling suspended air conditioning unit 1. For example, if the cover is made of vinyl, the ceiling suspended air conditioning unit 1 is attached to the suspension bolt K at the lower end of the suspension bolt K. The cover can be broken through, and the cover can be easily removed and discarded.

In addition, in the above-described embodiment, the support member 27 is exemplified as a member that supports the air conditioner main body 3 from the side, but other support members may be provided. FIG. 15 is a diagram showing an example of addition of a support member. For example, as shown in FIG. 15, a support member 28 may be added to the ceiling suspended air conditioning unit 1 . The support member 28 is a substantially L-shaped metal fitting, one end of which is fixed to the angle member 21 of the frame 2 with a bolt, and the other end of which is positioned so as to face the side surface of the air conditioner main body 3 . . If such a support member 28 is added, the side surface of the air conditioner main body 3 is supported by two points of the support members 27 and 28 when the ceiling suspended air conditioning unit 1 is laid on its side. Damage can be suppressed as much as possible.

Further, in the above-described embodiment, after the ceiling-mounted air-conditioning unit 1 is attached to the ceiling T, the frame 2 of the ceiling-mounted air-conditioning unit 1 may be dismantled. FIG. 16 is a diagram showing how the frame 2 is dismantled. After being fixed to the hanging bolts K, the ceiling suspended air conditioning unit 1 of the above embodiment supports the air conditioner main body 3, the supply air chamber 4, and the return air chamber 5 among the members such as the angle members 21 constituting the frame 2. The lower part (lower frame) which is not involved may be removed as shown in FIG. Thereby, the angle material 21 etc. of the removed part can be effectively utilized for others.

Moreover, the ceiling suspended air conditioning unit 1 of the above embodiment may be modified as follows. FIG. 17 shows a first modification of the ceiling suspended air conditioning unit 1 . In the ceiling suspended air conditioning unit 1 of the first modified example, a duct connecting portion 101 is provided instead of the connecting opening portion 42 provided in the air supply chamber 4 . In addition, an auxiliary frame 103 is added to the frame 2 to support the cold/hot water pipe connection portion 102 attached to the air conditioner main body 3 .

The duct connection part 101 hardly protrudes from the outer surface of the air supply chamber 4 . In addition, the cold/hot water pipe connection part 102 is a part for connecting a cold/hot water pipe to be passed through a coil provided inside the air conditioner main body 3, and can be connected with one touch without using pipes, solenoid valves, or tools. It consists of a coupler for piping connection. A heat insulating material is appropriately provided in the piping. Since the cold/hot water pipe connection portion 102 is a part that protrudes from the housing of the air conditioner main body 3, when various external forces such as the load of the pipe are applied to the cold/hot water pipe connection portion 102, the cold/hot water pipe connection portion The root portion of 102 may be damaged. Therefore, when such a cold/hot water pipe connection portion 102 is provided in the ceiling suspended air conditioning unit 1 , it is preferable to provide the frame 2 with an auxiliary frame 103 that supports the cold/hot water pipe connection portion 102 . The auxiliary frame 103 is formed of angle members 104 similar to the angle members 21 of the frame 2, bolts, nuts, and various other structural members.

18A and 18B are diagrams showing a state of a pipe connection work. As described above, the cold/hot water pipe connection portion 102 is provided with a coupler for pipe connection. Therefore, if the pipe 105 has a coupler (female side) at the end that is compatible with the coupler (male side) provided in the cold/hot water pipe connection portion 102, the pipe 105 can be manually connected to the cold/hot water pipe 105 without using any tools. It can be connected to the water pipe connection 102 . Therefore, it is possible to extremely easily connect the pipe 105 to the ceiling suspended air conditioning unit 1 suspended by the suspension bolts K from the ceiling of the building. Therefore, it is possible to proceed with the work very smoothly even in a high place or in a narrow space.

FIG. 19 is a diagram showing how the ducts are connected. The duct connecting portion 101 is not a cylindrical body protruding from the outer surface of the air supply chamber 4 like the connecting opening portion 42 illustrated in the above embodiment. That is, since the duct connecting portion 101 hardly protrudes from the outer surface of the air supply chamber 4 , a dedicated duct is connected to the duct connecting portion 101 . The duct connecting portion 101 includes an opening 101A forming a passage for ventilation, and a fitting portion 101B and packing 101C forming the edge of the opening 101A. The fitting portion 101B is made of a flexible material that easily engages with the duct 106. As shown in FIG. The packing 101C is made of a flexible resin that exhibits flexibility and airtightness, and protrudes toward the center of the opening from the fitting portion 101B.

The duct 106 is provided with a heat insulating material 106A for insulating the duct and a fitting portion 106B forming the end of the duct. Further, the fitting portion 106B is provided with ribs 106C. The fitting portion 106B is an annular body having an outer diameter substantially equal to that of the opening 101A of the duct connecting portion 101, and can be fitted into the opening 101A. The outer peripheral surface of the fitting portion 106B is raised to engage with the fitting portion 101B. Ribs 106C protruding from the outer peripheral surface of fitting portion 106B bite into flexible fitting portion 101B to firmly fix duct 106 to duct connecting portion 101. As shown in FIG. In addition, since the packing 101C for ensuring airtightness protrudes toward the center of the opening from the fitting portion 101B, the force of the packing 101C coming into close contact with the outer peripheral surface of the fitting portion 106B also causes the duct connection portion 101 to move. The fixed state of the duct 106 connected to is maintained.

Since the air supply chamber 4 is provided with such a duct connecting portion 101, the duct 106 can be connected to the duct connecting portion 101 only by manually pushing the fitting portion 106B into the opening 101A without using any tools. It is possible to connect. Therefore, the duct 106 can be very easily connected to the ceiling suspended air conditioning unit 1 suspended by the suspension bolts K from the ceiling of the building. Therefore, it is possible to proceed with the work very smoothly even in a high place or in a narrow space.

In addition, since the air supply chamber 4 is provided with such a duct connecting portion 101, the ceiling suspended air conditioning unit 1 can be made smaller than when the connecting opening portion 42 is provided. FIG. 20 is a diagram comparing the outer dimensions of the ceiling-suspended air conditioning unit 1 of the above-described embodiment and the modification. Compared to the connecting opening 42, the duct connecting portion 101 hardly protrudes from the outer surface of the air supply chamber 4. Therefore, as can be seen from FIG. It is possible to make the external size smaller than the ceiling suspended air conditioning unit 1 by the distance L1. Since the amount of protrusion of the connecting opening 42 is the length of a common duct connecting portion (approximately 5 to 15 cm), the distance L1 roughly corresponds to this length. Therefore, the ceiling suspended air conditioning unit 1 of this modified example using the duct connecting portion 101 instead of the connecting opening 42 is easier to transport and install on site, and furthermore, the connecting opening 42 is not exposed to objects. The risk of damage such as deformation of the connecting opening 42 due to this can be suppressed as much as possible. Therefore, this modification using the duct connecting portion 101 has extremely high workability.

By the way, the auxiliary frame 103 is intended to prevent anything that would hinder the maintenance of the suspended air-conditioning unit 1 from being mistakenly installed around the suspended air-conditioning unit 1 in the ceiling portion where the suspended air-conditioning unit 1 is installed. can also be used for FIG. 21 is a diagram showing an example of obstacle prevention means provided on the auxiliary frame 103. As shown in FIG. A plate-like member such as an obstacle prevention cover 107 or an obstacle prevention means such as a box can be installed on the auxiliary frame 103, for example. The obstacle prevention cover 107 may be completely fixed to the auxiliary frame 103 by fixing means such as bolts, or may be fixed in a movable state by fixing means having a movable part such as a hinge, or , may be provided in a detachable state. In this case, the obstacle prevention cover 107 corresponds to the "cover" in the present application, and the integrated product of the obstacle prevention cover 107 and the fixing means for fixing the obstacle prevention cover 107 to the auxiliary frame 103 is the "obstacle cover" in the present application. Equivalent to "object prevention device". If the obstacle prevention cover 107 is detachable or movable by means of a hinge or the like, it is possible to prevent the obstacle prevention cover 107 from interfering with the transportation of the suspended air conditioning unit 1 .

Normally, the air conditioner main body 3 has a built-in filter for preventing the coils and the like from being soiled by suspended matter in the air. Filters require periodic maintenance such as replacement. For this reason, the air conditioner main body 3 is provided with a filter replacement port 108 for inserting and removing the filter, as shown in FIG. 21(A), for example. In a ceiling-embedded type air conditioner, when the filter replacement port 108 is provided on the housing side surface of the air conditioner body 3 as in the air conditioner body 3 shown in FIG. This is done through an inspection opening in the ceiling panel that forms the ceiling. Then, as shown in FIG. 21(B), the filter 109 is pulled out from the filter replacement port 108 . Then, as shown in FIG. 21(C), the filter 109 is removed from the air conditioner body 3 . When the replacement work is completed, the inspection port is closed and the periphery of the filter replacement port 108 is hidden by the ceiling panel.

In the space behind the ceiling, which is formed by the ceiling panels and is hidden from the occupants of the room, the ceiling-suspended air conditioning unit 1 as well as lighting fixtures, communication equipment, and various other devices are installed. Equipment installed in the space above the ceiling is basically suspended by suspension bolts or the like suspended from the ceiling slab. Therefore, obstacle prevention means such as the obstacle prevention cover 107 that hinders the attachment of the suspension bolts hanging from the ceiling slab should be placed near the filter replacement port 108 or in the work space during maintenance work of the ceiling suspended air conditioning unit 1. It is possible to prevent such various devices from being installed in a place that interferes with the maintenance work of the ceiling suspended air conditioning unit 1 by covering the place where it is necessary to secure at least from the upper side. can.

FIG. 22 is a diagram showing an example of obstacles. Without the obstacle prevention cover 107 , for example, a workpiece such as an obstacle 110 may be installed near the filter replacement opening 108 . A contractor who installs various devices in the ceiling space may not be aware that the ceiling suspended air conditioning unit 1 requires a work space for maintenance, so the contractor may install the obstacle 110. could be. In this regard, if the obstacle prevention cover 107 for preventing the installation of the obstacle 110 is installed near the filter replacement port 108, the hanging bolt for installing the obstacle 110 is prevented from hanging from the ceiling slab. Since the obstacle prevention cover 107 interferes, the possibility that the obstacle 110 is installed by mistake can be suppressed as much as possible.

Next, a modification of the method of transporting the suspended air conditioning unit 1 will be described.

FIG. 23 is a first diagram showing a state in which the suspended air conditioning units 1 are stacked. As explained with reference to FIG. 16, the ceiling suspended air conditioning unit 1 can remove the lower part (lower frame) that does not support the air conditioner body 3, the supply air chamber 4, and the return air chamber 5. is. Therefore, depending on the transportation method, the installation method, the size of the equipment, etc., it is conceivable to prepare the ceiling suspended air conditioning unit 1 without the lower frame in advance. When the lower frame is provided, the ceiling-suspended air conditioning units 1 can be stacked as shown in FIG. 23(A) without any problem. However, when the lower frame is omitted, as shown in FIG. Since the chamber 5 is placed directly on the lower ceiling-mounted air conditioning unit 1, the ceiling-mounted air conditioning unit 1 may tilt or the air conditioner main body 3 may be damaged.

Therefore, when the lower frame of the ceiling-mounted air-conditioning unit 1 is omitted, the ceiling-mounted air-conditioning unit 1 can be stacked by, for example, providing the following temporary members. FIG. 24 is a second diagram showing a state in which the suspended air conditioning units 1 are stacked. When it is desired to stack the ceiling suspended air conditioning units 1 with the lower frame omitted, a temporary joint 111 (an example of a “temporary member” referred to in the present application) that can be fixed to the frame 2 is prepared. As shown in FIG. 24A, the temporary joint 111 includes a support portion 111A attached to the frame 2 to support the frame 2 from below, a leg portion 111B extending downward from the support portion 111A, and a lower end of the leg portion 111B. It is a generally U-shaped member formed by a bottom portion 111C extending laterally from the . The support portion 111A is fixed to the frame 2 using bolts and nuts. For example, as shown in FIG. 24B, by attaching such members to the left and right ends of the ceiling-mounted air conditioning unit 1, the ceiling-mounted air conditioning unit 1 can be installed on the floor surface on which the ceiling-mounted air conditioning unit 1 is placed. It is in a state having legs for floating the air conditioner main body 3 and the like from the air conditioner main body 3 and the like. Therefore, the suspended air conditioning unit 1 provided with the temporary joint 111 can be stacked as shown in FIG. 24(C) even if the lower frame is omitted.

25 is a modification of the carriage D. FIG. The ceiling suspended air conditioning unit 1 can also be transported, for example, by a truck 112 as shown in FIG. The truck 112 includes a bottom portion 112A that forms the bottom portion of the truck 112, side portions 112B that enclose the ceiling suspended air conditioning unit 1 from the sides, hinges 112C that connect the side portions 112B to the bottom portion 112A so as to be rotatable in the sideways direction, and the bottom portion 112A. It has a wheel 112D provided on the lower side of the. In FIG. 25, the cart 112 is illustrated as being made of a plate-like member, but it may be made of a rod-like member such as an angle member. Since the side portion 112B of the carriage 112 that supports the ceiling-suspended air-conditioning unit 1 from the side can be rotated in a direction in which it falls sideways with respect to the bottom portion 112A, for example, the following transportation is possible.

FIG. 26 is a diagram showing how to use the cart 112. As shown in FIG. For example, as shown in FIG. 26A, the carriage 112 can mount a plurality of ceiling suspended air conditioning units 1 . Also, the side portion 112B that supports the ceiling-suspended air conditioning unit 1 from the side can be rotated in a direction to lie sideways with respect to the bottom portion 112A. Therefore, for example, at a factory where the ceiling-mounted air conditioning unit 1 is manufactured, the trolley 112 on which the ceiling-mounted air-conditioning unit 1 is mounted is transported using a truck for transportation, a temporary or permanent elevator at a construction site, and the like. After being transported to the vicinity of the installation location of the unit 1, the suspended air conditioning unit 1 can be unloaded from the truck 112 as follows. That is, after the truck 112 carrying the ceiling-suspended air conditioning unit 1 is transported to the vicinity of the installation location of the ceiling-suspended air conditioning unit 1, as shown in FIG. state. When the ceiling-hung air-conditioning unit 1 is mounted on the carriage 112, the ceiling-hung air-conditioning unit 1 is mounted so that the attitude of the ceiling-hung air-conditioning unit 1 is correctly oriented vertically when the ceiling-hung air-conditioning unit 1 is laid down together with the side part 112B. 26(B), the upper surface of the suspended air conditioning unit 1 faces upward. Therefore, the operator either lifts the ceiling-suspended air-conditioning unit 1 directly to the ceiling and fixes it to the suspension bolts K, or removes the ceiling-suspended air-conditioning unit 1 from the side part 112B with a fork-shaped elevating part. It is possible to easily install the suspended air conditioning unit 1 on the ceiling by directly lifting it up to the ceiling with an elevator or the like.

As described above, the ceiling suspended air conditioning unit 1 can be appropriately modified into various forms. Further, the embodiments and modifications described above can be appropriately combined. The ceiling suspended air conditioning unit 1 can be installed at the construction site in an extremely short time compared to the case where the air conditioner main body 3, the air supply chamber 4 and the return air chamber 5 are separately brought to the construction site and then assembled. work can be completed, the construction period at the construction site can be greatly shortened. Moreover, since the ceiling-mounted air conditioning unit 1 can be assembled at a factory, efficient assembly is possible in an environment suitable for the assembly of the ceiling-mounted air conditioning unit 1 . Therefore, compared with the case where the air conditioner body 3, the supply air chamber 4, and the return air chamber 5 are carried separately to the construction site and then assembled, the total man-hours can be reduced.

K... Suspension bolt T... Ceiling F... Anti-vibration V... Vehicle S... Aerial work vehicle M... Worker D... Truck 1... Ceiling-suspended air conditioning unit 2... Frame 3... Air conditioner Main body 4 Air supply chamber 5 Return air chamber 6 Temporary fixing 7 Gauge 21 Angle member 22 Rib plate 23 Rib plate 24 Suspension portion 24 a Angle member 24 b Insertion hole 24c Adjustment hole 24d High-strength bolt 24e Nut 25 Bar screw 26 Suspension fittings 27, 28 Support member 31 Housing 32 Auxiliary machine 33 Attachment Piping 34 Ceiling suspension mounting portion 35 Anti-vibration rubber 41 Housing 42 Connection opening 51 Housing 61 Top plate portion 62 Side wall portion 63 Notch portion 71 Gauge main body 72 Positioning hole 73 Manhole D1 Pedestal D2 Wheel D3 Auxiliary rod 101 Duct connecting portion 102 Cold/hot water pipe connecting portion 103 Auxiliary frame 104 Angle Material 105 Piping 106 Duct 101A Opening 101B Fitting portion 101C Packing 106A Heat insulating material 106B Fitting portion 106C Rib 107 Obstacle prevention cover 108 Filter replacement Port 109 Filter 110 Obstacle 111 Temporary joint 111A Support 111B Leg 111C Bottom 112 Carriage 112A Bottom 112B Side 112C Hinge 112D Wheel

Claims (9)

A construction method for a ceiling-suspended air conditioner that can be attached to a building at a construction site, comprising:
A ceiling-suspended air conditioner body, ancillary parts connected to the air conditioner body, and a ceiling-suspended frame for integrally holding the air conditioner body and the accessory parts, wherein the air conditioner body has The mounting portion for hanging from the ceiling is attached to the frame, and when the frame is tilted together with the air conditioner main body from the posture when the air conditioner main body is suspended from the ceiling, the air conditioner main body is attached to the frame. an assembly work step of assembling and integrating a ceiling suspended air conditioning unit having restricting means for restricting relative movement outside the construction site;
a transportation step of transporting the ceiling suspended air conditioning unit to the construction site;
a mounting step of mounting the suspended air conditioning unit transported to the construction site to a predetermined location of the building ;
In the transporting step, the ceiling-suspended air conditioning unit is transported to the construction site in a state in which the frame is mounted on a vehicle together with the air conditioner main body in a posture tilted from the posture when the air conditioner main body is suspended from the ceiling;
In the transporting step, the ceiling suspended air conditioning unit is transported to the construction site in a state in which the frame is mounted on a trolley together with the air conditioner main body in a posture tilted from the suspension posture of the air conditioner main body, At the construction site, the ceiling-suspended air-conditioning unit is lowered from the truck in a state in which the ceiling-suspended air-conditioning unit is rotated in a sideways direction together with a side portion that can be rotated with respect to the bottom of the truck.
Installation method for ceiling-suspended air conditioners. The frame is provided with a hanging portion having an insertion hole at a position corresponding to a hanging metal fitting hanging from the ceiling of the building,
In the mounting step, the ceiling-suspended air conditioning unit is mounted in a state in which a suspension metal fitting hanging from the ceiling is inserted into the insertion hole.
The method for installing a ceiling suspended air conditioner according to claim 1 . A stacking step of stacking a plurality of the ceiling-suspended air conditioning units in a state in which a temporary member is attached to the frame so that the air conditioner main body and the accessory parts can be lifted from the floor surface on which the ceiling-suspended air conditioning unit is placed.
The method for installing a ceiling suspended air conditioner according to claim 1 or 2 . The accessory part is a chamber to which the duct is connected, and has a connecting portion that allows the duct to be connected without tools.
The method for installing a ceiling suspended air conditioner according to any one of claims 1 to 3. The connecting portion fits inside the frame,
The method for installing a ceiling suspended air conditioner according to claim 4. The connecting part has a flexible fitting part that fits with the end of the duct that is inserted into the opening,
The method for installing a ceiling suspended air conditioner according to claim 5 or 6. The frame is provided with an auxiliary frame that supports a connection portion to which a pipe is connected,
The auxiliary frame is provided with obstacle prevention means for preventing an obstacle from being installed around the ceiling suspended air conditioning unit.
The method for installing a ceiling suspended air conditioner according to any one of claims 1 to 6. The air conditioner main body has a coupler that can connect piping without tools,
The method for installing a ceiling suspended air conditioner according to any one of claims 1 to 7. A construction method for a ceiling-suspended air conditioner that can be attached to a building at a construction site, comprising:
A ceiling-suspended air conditioner body, ancillary parts connected to the air conditioner body, and a ceiling-suspended frame for integrally holding the air conditioner body and the accessory parts, wherein the air conditioner body has The mounting portion for ceiling suspension is attached to the frame when the frame, together with the air conditioner body, is tilted from the posture when the air conditioner body is suspended from the ceiling with respect to the ceiling suspension air conditioning unit attached to the frame. a mounting step of mounting a restricting means for restricting relative movement of the air conditioner main body;
The ceiling suspended air conditioning unit is transported to the construction site in a state in which the frame is mounted on a trolley together with the air conditioner body in a posture tilted from the posture of the air conditioner body suspended from the ceiling, and at the construction site, a carrying step of unloading the ceiling-hung air-conditioning unit from the truck in a state where the ceiling-hung air-conditioning unit is rotated in a sideways direction together with a side portion that is rotatable with respect to the bottom of the truck;
The restraining means is removed from the ceiling suspended air conditioning unit transported to the construction site in a state in which the frame is mounted on a vehicle together with the air conditioner main body in a posture tilted from the posture when the air conditioner main body is suspended from the ceiling. a removing step;
Installation method for ceiling-suspended air conditioners.

Images