JP7168636B2 - Ceiling suspended air conditioning unit and installation method for ceiling suspended air conditioner - Google Patents

Description

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

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 preferred.

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.

Specifically, the present invention relates to a ceiling-suspended air conditioning unit, comprising: a ceiling-suspended air conditioner main body; accessories connected to the ceiling-suspended air conditioner main body; and a frame for suspension, wherein the mounting portion for ceiling suspension of the air conditioner main body is attached to the frame, and when the frame is tilted from the attitude of the air conditioner main body when suspended from the ceiling together with the air conditioner main body. Furthermore, it has restricting means for restricting relative movement of the air conditioner main body with respect to the frame.

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.

The attachment portion is attached to the frame via a vibration isolating member, and the restricting means is a temporary fixing part that restricts relative movement of the air conditioner main body with respect to the frame due to deformation of the vibration isolating member. may contain. With such a restricting means, even if the frame is tilted from the posture when the air conditioner body is suspended from the ceiling together with the air conditioner body, the weight of the air conditioner body is added to the anti-vibration member. Damage can be prevented. 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.

Also, the attachment portion may be attached to a suspension fitting provided on the frame. 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 mounting portion for ceiling suspension of the air conditioner main body and the hanging metal fittings provided on the frame. 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.

Further, the frame has a support member that supports the air conditioner body, which moves relative to the frame in the opposite direction of the relative movement when the frame is tilted together with the air conditioner body from the posture when the air conditioner body is suspended from the ceiling. may be provided. With such a support member, when the support member comes into contact with the air conditioner main body that moves relative to the frame, the air conditioner main body is supported by the support member and the relative movement is restricted. 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.

Further, the restricting means is such that when the frame is mounted on a transport vehicle in a state in which the frame is tilted from the attitude of the air conditioner main body suspended from the ceiling together with the air conditioner main body, the air conditioner main body moves in the vertical direction with respect to the frame. It may be something that regulates the relative movement of. With such restricting means, it is possible to lay down the frame on which the air conditioner body is attached in a suspended state and transport it by vehicle.

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 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 present invention uses a gauge indicating the position of a plurality of suspension parts for suspension provided in a ceiling suspension air conditioner, and positions the lower end of each suspension metal fitting hanging from the ceiling of a building, and suspends it in the positioned state. The construction method for a ceiling-suspended air conditioner may include a pre-installation step of attaching a steady rest to a hanging metal fitting. According to this, it becomes possible to efficiently attach the steady rest and the ceiling suspended air conditioning unit.

Further, in the transportation step, the ceiling suspended air conditioning unit may be covered with the cover and then conveyed, and in the mounting step, the ceiling suspended air conditioning unit may be attached while still covered with the cover. According to this, the cover can protect the suspended air-conditioning unit both during the transportation process and after being attached to the ceiling.

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.

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, the suspended air-conditioning unit 1 is laid down with the X-axis facing downward.
When the air conditioner main body 3 moves in the X-axis direction by its own weight, the air conditioner main body 3 comes into contact with the support member 27 provided on the frame 2, and the air conditioner main body 3 is supported by the support member 27 from below. become a state. 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 cannot be attached to the ceiling suspended air conditioning unit 1 even when attaching the hanging bolt K 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.

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

Claims (12)

a ceiling-suspended air conditioner body;
ancillary parts connected to the air conditioner main body;
a ceiling suspension frame that integrally holds the air conditioner main body and the accessory parts,
The air conditioner main body is attached to the frame by a mounting portion, 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, a member of the mounting portion is attached to the frame. a restricting means for restricting relative movement of the air conditioner main body with respect to the frame so as to prevent the load in the tilting direction from being applied ;
The attachment portion is attached to the frame via a vibration isolation member,
the restricting means includes a temporary fixing part that restricts relative movement of the air conditioner main body with respect to the frame due to deformation of the vibration isolating member;
The temporary fixing parts are
A flat and rectangular top plate portion pressed by the frame-side parts;
a side wall portion provided along each of two long sides of the top plate portion and pressing the mounting portion with a pressing force applied to the top plate portion;
Ceiling air conditioning unit. a ceiling-suspended air conditioner body;
ancillary parts connected to the air conditioner main body;
a ceiling suspension frame that integrally holds the air conditioner main body and the accessory parts,
The air conditioner main body is attached to the frame by a mounting portion, 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, a member of the mounting portion is attached to the frame. a restricting means for restricting relative movement of the air conditioner main body with respect to the frame so as to prevent the load in the tilting direction from being applied;
The attachment portion is attached to the frame via a vibration isolation member,
the restricting means includes a temporary fixing part that restricts relative movement of the air conditioner main body with respect to the frame due to deformation of the vibration isolating member;
The temporary fixing component is pressed by a nut that is screwed to a suspension fitting provided on the frame.
Ceiling air conditioning unit. The temporary fixing part stops deformation of the vibration-isolating member due to relative movement between the frame and the air conditioner main body, so that a load in an unexpected direction is applied to the vibration-isolating member in a normal state. Prevents load on anti-vibration members,
The ceiling suspended air conditioning unit according to claim 1 or 2. The attachment portion is attached to a hanging bracket provided on the frame,
The ceiling suspended air conditioning unit according to any one of claims 1 to 3 . The restricting means moves the air conditioner body, which moves relative to the frame, in a direction opposite to the relative movement when the frame is tilted together with the air conditioner body from a posture when the air conditioner body is suspended from the ceiling. including a supporting support member,
The ceiling suspended air conditioning unit according to any one of claims 1 to 4 . 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 support member is provided to the air conditioner main body which is not in contact with the air conditioner main body in order to allow relative movement in the suspended state. By contacting and supporting the air conditioner main body, it prevents a load in a direction that is not assumed in a normal state from being applied to the members of the mounting portion.
The ceiling suspended air conditioning unit according to claim 5. The support member contacts the air conditioner main body at a position below the air conditioner main body when the frame is tilted from the normal posture to the transportation posture together with the air conditioner main body. supporting the body
The ceiling suspended air conditioning unit according to claim 6. The support member is attached to an angle member of the frame,
The ceiling suspended air conditioning unit according to any one of claims 5 to 7. The accessory component is a chamber connected to the air conditioner main body,
The ceiling suspended air conditioning unit according to any one of claims 5 to 8. The restricting means moves in a vertical direction with respect to the frame when the frame is mounted on a transportation vehicle in a state in which the frame is tilted from the attitude of the air conditioner body suspended from the ceiling together with the air conditioner body. restricting relative movement of the air conditioner main body;
A ceiling suspended air conditioning unit according to any one of claims 1 to 9 . A construction method for a ceiling-suspended air conditioner that can be attached to a building at a construction site, comprising:
an assembly work step of assembling and integrating the ceiling suspended air conditioning unit according to any one of claims 1 to 10 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;
Installation method for ceiling-suspended air conditioners. 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.
The method for installing a ceiling suspended air conditioner according to claim 11 .

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