JP7204795B2 - How to make a ceiling suspended air conditioning unit - Google Patents

Description

The present invention relates to a method for manufacturing a ceiling suspended air conditioning unit.

In recent years, various techniques have been proposed for facilitating the installation of air conditioners such as concealed air conditioners and chambers installed in the ceiling space (see, for example, Patent Documents 1 and 2).

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

Concealed air conditioning equipment installed above the ceiling is usually attached to a bar screw (sometimes called a "full screw") fixed to the structural material of the building, and suspended by the bar screw. 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 air conditioners on-site, for example, ancillary parts such as chambers are integrated with the main body of the air conditioner using a frame in the factory in advance, and transported from the factory to a remote construction site by vehicle or the like. Even in the case of adopting the form of hanging, in order to install air conditioning equipment with a structure that assumes installation in a suspended state to the frame at the factory, it is necessary to prevent damage to the mounting part provided on the air conditioning equipment. , it is necessary to handle the air conditioning equipment with an appropriate posture.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a method of manufacturing a suspended air-conditioning unit in which air-conditioning equipment intended to be installed in a suspended state is attached to a frame.

In order to solve the above problems, in the present invention, after attaching the upper frame from the upper side to the plurality of air conditioners assembled together, the upper frame is raised and the lower frame is attached to the plurality of air conditioners from the lower side.

More specifically, the present invention relates to a method for manufacturing a ceiling-suspended air-conditioning unit, comprising a device assembling step of assembling a plurality of ceiling-suspended air conditioners to each other; an upper frame attaching step of attaching an upper frame forming an upper portion of a frame that integrally holds the air conditioning equipment of the air conditioner; a lower frame attaching step of attaching a lower frame forming a lower portion.

In the above manufacturing method, after the upper frame is attached from the upper side to the multiple air conditioners assembled together, the upper frame is raised, and the lower frame is attached from the lower side of the multiple air conditioners, so the mounting portion is in a suspended state. When attaching an air conditioner, which is designed to be installed, to the frame, the manufacturing work can be easily performed while the air conditioner is maintained in a proper posture. Therefore, the mounting portion provided on the air conditioner is not damaged. Therefore, it is possible to efficiently manufacture the ceiling suspended air conditioning unit.

The above manufacturing method includes a preparation step of preparing a frame member for integrally holding a plurality of ceiling-suspended air conditioners, an upper frame assembly step of assembling an upper frame forming the upper portion of the frame, and a frame assembly step. A lower frame assembling step of assembling a lower frame forming the lower portion may be further included. According to this, since the upper frame and the lower frame are assembled, the assembly of the ceiling suspended air conditioning unit can be started without the upper frame and the lower frame.

In the upper frame assembly process, the upper frame may be assembled upside down and then turned upside down. According to this, the upper frame can be assembled in a stable posture even if the upper frame has a configuration in which the member for attaching the lower frame protrudes downward.

The manufacturing method further includes a frame transferring step of transferring the upper frame assembled by the upper frame assembling step and the lower frame assembled by the lower frame assembling step. , and the lower frame attachment step may use upper and lower frames transferred from another location by the frame transfer step. According to this, each process can be performed at an appropriate place.

In addition, in the above-described manufacturing method, the air-conditioning equipment has a regulating means for regulating relative movement of the air-conditioning equipment with respect to the frame when the frame is tilted from the attitude of the air-conditioning equipment when suspended from the ceiling together with the air-conditioning equipment. It may further have a restricting means attachment step of attaching to the attachment portion for the. According to this, the manufactured ceiling suspended air conditioning unit can be transported in a sideways posture.

In the lower frame attaching step, the upper frame to which the plurality of air conditioners are attached may be lifted by a hoist, and the lower frame may be attached from below the plurality of air conditioners. According to this, the upper frame to which the plurality of air conditioners are attached can be easily lifted.

Moreover, the manufacturing method described above may further include an auxiliary frame attaching step of attaching an auxiliary frame for supporting pipes provided in the air conditioner to the upper frame. According to this, the pipes provided in the air conditioner can be protected by the auxiliary frame during the manufacture of the suspended air conditioning unit.

According to the method for manufacturing a ceiling-suspended air-conditioning unit described above, air-conditioning equipment intended to be installed in a suspended state can be easily attached to the frame while maintaining an appropriate posture.

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 view showing the frame in the completed ceiling suspended air conditioning unit. FIG. 4 is a diagram showing an example of the assembly process of the upper frame. FIG. 5 is a diagram showing an example of the operation of turning the upper frame upside down. FIG. 6 is a first diagram showing an example of the assembly process of the lower frame. FIG. 7 is a second diagram showing an example of the assembly process of the lower frame. FIG. 8 is a first diagram showing an example of the process of assembling the air conditioner. FIG. 9 is a second diagram showing an example of the process of assembling the air conditioner. 10A and 10B are diagrams showing a method of attaching the air conditioner main body to the ceiling suspension attachment portion. FIG. 11 is a diagram showing an example of the process of attaching the lower frame to the air conditioner. FIG. 12 is a diagram showing how the attachment of the lower frame is completed. FIG. 13 is a diagram showing how the auxiliary frame is attached. FIG. 14 is a diagram showing a method of mounting the ceiling suspended air conditioning unit on the vehicle. FIG. 15 is a diagram showing members provided in the ceiling suspended air conditioning unit. FIG. 16 is a diagram showing temporary fixing. 17A and 17B are diagrams showing a state in which the temporary fixing is attached. FIG. 18 is a diagram showing an example of a cart on which the ceiling suspended air conditioning unit is placed. FIG. 19 is a diagram showing how to use the trolley. FIG. 20 shows a first modification of the ceiling suspended air conditioning unit. FIG. 21 is a diagram comparing the outer dimensions of the ceiling suspended air conditioning unit of the embodiment and the modified example. FIG. 22 is a diagram showing an example of obstacle prevention means provided on the auxiliary frame. FIG. 23 is a diagram showing an example of obstacles.

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 ceiling-mounted air conditioning unit 1 has a supply air chamber 4 and a return air chamber 5, as well as refrigerant pipes, water pipes, drain pipes, drain pumps, dampers, intake and exhaust grills, filters, and various other air conditioning equipment. 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. are 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 . A connecting portion between the air conditioner main body 3 and the supply air chamber 4 and a connecting portion between the return air chamber 5 and the air conditioner main body 3 are connected with screws. 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 can be relatively moved to some extent. may In this case, by making the other opening to be fitted into one of the openings slightly smaller and filling the gap between the openings with a sealing material such as flexible sponge packing for airtightness, there is some relative movement. A flexible connection structure is possible.

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 may be an air conditioner in which a refrigerant of a refrigeration cycle that repeats evaporation and condensation is supplied through an accessory pipe 33 and a coil in the machine functions as a condenser or an evaporator. It may be an air conditioner that cools or heats the air by passing cold water or hot water supplied through a coil in the machine. Further, the air conditioner main body 3 may be one in which the auxiliary machine 32 is omitted.

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 body 3 incorporates an electric fan, a vibration isolator 35 is provided on the mounting portion 34 for ceiling suspension, and vibrations transmitted from the air conditioner body 3 to the frame 2 are prevented by the vibration isolator. Cut off at 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. Note that the return air chamber 5 may be omitted depending on the building.

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, the number of rib plates 22 that can satisfy the thickness required to ensure strength is applied to the portion (the portion denoted by reference numeral 22) where a load is applied in the direction of bending the rib plate. are provided. If the number of pieces that can satisfy the thickness required to ensure the strength is, for example, two pieces, the angle pieces 21 are fastened together in a state in which the angle pieces 21 are sandwiched between the two rib plates 22. , deformation and damage of the rib plate 22 due to the load are prevented. 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 a plurality of rib plates 22 at such locations is effective in ensuring the strength of the frame 2 .

After being manufactured in a factory, the ceiling suspended air conditioning unit 1 described above is transported to a construction site using a transportation vehicle such as a truck. A method of manufacturing the ceiling suspended air conditioning unit 1 will be described below.

FIG. 3 is a diagram showing the frame 2 in the ceiling suspended air conditioning unit 1 in a completed state. In FIG. 3 , for ease of understanding, a diagram showing only the frame 2 is shown side by side with a completed diagram of the ceiling suspended air conditioning unit 1 .

As can be seen from FIG. 3, the frame 2 has a three-dimensional structure, and has a portion forming the upper portion of the ceiling suspended air conditioning unit 1 and a portion forming the lower portion of the ceiling suspended air conditioning unit 1. there is The method of manufacturing the ceiling-hung air conditioning unit 1 in this embodiment includes a step of manufacturing a portion of the frame 2 that forms the upper portion of the ceiling-hung air conditioning unit 1, and a step of manufacturing a portion of the frame 2 that forms the lower portion of the ceiling-hung air conditioning unit 1. It has several processes such as the process of manufacturing the part to be done. Therefore, for convenience of explanation, the portion of the frame 2 that forms the upper portion of the ceiling-suspended air conditioning unit 1 is hereinafter referred to as an upper frame 2U, and the portion of the frame 2 that forms the lower portion of the ceiling-suspended air conditioning unit 1 is hereinafter referred to as a lower frame 2B.

In the method of manufacturing the ceiling suspended air conditioning unit 1 of this embodiment, the upper frame 2U and the lower frame 2B are assembled separately. FIG. 4 is a diagram showing an example of the assembly process of the upper frame 2U. As shown in FIG. 4, the upper frame 2U is a structure in which a plurality of angle members 21 are fastened together with bolts and nuts. In the manufacturing process of the upper frame 2U, a plurality of angle members 21 prepared using a material processing machine or the like are butted against each other and fastened with bolts and nuts in this state to form a structure. A rib plate 22 is used as appropriate for the portions where the angle members 21 are fastened at right angles. As a result, the overall strength of the upper frame 2U completed by fastening the angle members 21 is ensured.

Incidentally, as described above, among the parts of the frame 2, at the part where the load of the whole suspended air-conditioning unit 1 is applied, the number of rib plates 22 capable of satisfying the necessary thickness for securing the strength is provided. As described above, the strength of the frame 2 is ensured by For example, when two rib plates 22 are provided at such a location, the two rib plates 22 are arranged so as to sandwich the fastening portion of the angle member 21 from both sides. Then, a bolt is inserted into a screw hole in one of the two rib plates 22. - 特許庁A bolt inserted into the screw hole passes through the screw hole of the first rib plate 22 , the screw hole of the angle member 21 , and the screw hole of the second rib plate 22 . Then, the tip of the bolt protrudes from the screw hole of the second rib plate 22 . By screwing a nut onto the tip of the bolt, the fastening portion of the angle member 21 is sandwiched between the two rib plates 22 from both sides.

Of the upper frame 2U shown in FIG. corresponds to Of the upper frame 2U, two square frames (the outer two frames of the three frames formed in the upper frame 2U) whose four sides are surrounded by three angle members 21 and one bar screw 25 are supplied. It corresponds to the air chamber 4 and the return air chamber 5 . Therefore, the outer square frame formed by the entire upper frame 2U forms the exoskeleton of the frame 2. As shown in FIG. The same applies to the lower frame 2B. Therefore, the air conditioner main body 3, the supply air chamber 4, and the return air chamber 5 are exoskeleton of the frame 2 formed by a square frame forming the outermost portion of the upper frame 2U and a square frame forming the outermost portion of the lower frame 2B. , and is protected by the exoskeleton even when the suspended air conditioning unit 1 is transported. The rod screw 25 is not particularly necessary for holding the air conditioner main body 3, the supply air chamber 4, and the return air chamber 5 to the frame 2, but it can withstand the impact force of an object that collides with the end of the angle member 21. , functions as a configuration necessary for the frame 2 to exert its structural strength as an exoskeleton.

During the manufacture of the upper frame 2U, the work is performed with the upper frame 2U turned upside down. After the upper frame 2U is manufactured, the upper frame 2U is turned upside down so that the upper and lower sides of the upper frame 2U face the correct direction. FIG. 5 is a diagram showing an example of work for turning the upper frame 2U upside down. When the production of the upper frame 2U is completed, for example, as shown in FIG. 5, the upper frame 2U is turned upside down.

FIG. 6 is a first diagram showing an example of the assembly process of the lower frame 2B. FIG. 7 is a second diagram showing an example of the assembling process of the lower frame 2B. As shown in FIGS. 6 and 7, the lower frame 2B is a structure in which a plurality of angle members 21 are fastened together with bolts and nuts, similar to the upper frame 2U. In the manufacturing process of the lower frame 2B, a plurality of angle members 21 prepared using a material processing machine or the like are butted against each other and fastened with bolts and nuts in this state to form a structure. Also, the angle member 21 and the rib plate 23 are fastened so that the rib plate 23 for connecting the upper frame 2U protrudes upward. In the lower frame 2B, not only the rib plate 22 and the rib plate 23 but also the L-shaped metal fittings 29 are used for fastening the angle members 21 together. Further, as shown in FIG. 7, the lower frame 2B is also provided with a support member 27, which will be described later, and a vibration-resistant anti-vibration 2A that prevents the air-conditioning equipment attached to the frame 2 from shaking with respect to the frame 2. As shown in FIG.

After assembling the upper frame 2U and the lower frame 2B, the air conditioner is assembled. FIG. 8 is a first diagram showing an example of the process of assembling the air conditioner. FIG. 9 is a second diagram showing an example of the process of assembling the air conditioner. An air conditioner main body 3, an air supply chamber 4, and a return air chamber 5 are prepared at a site where the ceiling suspended air conditioning unit 1 is manufactured. Then, the air conditioner body 3 is placed on a workbench or the like with the top and bottom facing in the correct direction. Therefore, when assembling the air conditioner, first, as shown in FIG. part is attached to the upper frame 2U. Next, as shown in FIG. 9, the air supply chamber 4 and the return air chamber 5 are assembled. The air supply chamber 4 is connected to the outlet of the air conditioner body 3 . Also, the return air chamber 5 is connected to the suction port of the air conditioner main body 3 . The air conditioner main body 3, the supply air chamber 4, and the return air chamber 5 are connected to each other by screws with the top and bottom facing in the correct direction.

As described above, the air conditioner main body 3, the supply air chamber 4, and the return air chamber 5 are designed on the premise that they are suspended from the ceiling. For example, the air conditioner main body 3 is supported by attaching a ceiling suspension attachment portion 34 provided on the outer surface of the housing 31 to the suspension fitting 26 of the frame 2 . The partial enlarged view of FIG. 9 shows the ceiling suspension mounting portion 34 provided in the air conditioner main body 3 and its surroundings. 10A and 10B are diagrams showing a method of attaching the air conditioner main body 3 to the ceiling attachment portion 34. As shown in FIG. As shown in FIG. 10, the ceiling suspension attachment portion 34 is inserted into a threaded hole provided in the angle member 21 of the upper frame 2U and fixed with a nut. It is fixed in such a state that it is sandwiched by a nut screwed to the suspension metal fitting 26 via the anti-vibration rubber 35 and the temporary fixing 6 . The temporary fixing 6 is removed after the ceiling suspended air conditioning unit 1 is transferred to the installation site. The air conditioner main body 3 is connected to the air supply chamber 4 and the return air chamber 5 with screws, and was in a state of being temporarily fixed, but now it is fixed to the hanging metal fitting 26 by the mounting portion 34 for ceiling suspension. As a result, the air conditioners attached to the frame 2 are firmly fixed to each other.

FIG. 11 is a diagram showing an example of the process of attaching the lower frame 2B to the air conditioner. As described above, the air conditioner body 3, the supply air chamber 4, and the return air chamber 5 are attached to the upper frame 2U. Therefore, when the lower frame 2B is attached to the upper frame 2U to complete the frame 2, the upper frame 2U is lifted by a hoist (also called a "hoist") as shown in FIG. As described above, the air conditioner main body 3, the supply air chamber 4, and the return air chamber 5 are attached to the upper frame 2U using attachment portions provided for each air conditioner so as to be suspended from the ceiling. Therefore, when the upper frame 2U is lifted by the hoist, the air conditioner main body 3, the supply air chamber 4, and the return air chamber 5 are lifted together with the upper frame 2U while being suspended from the upper frame 2U. After the upper frame 2U is lifted by the hoist, the lower frame 2B is attached to the upper frame 2U from below the air conditioner main body 3, the supply air chamber 4, and the return air chamber 5 suspended from the upper frame 2U. When the lower frame 2B is arranged below the air conditioner main body 3, the supply air chamber 4, and the return air chamber 5, the hoist that suspends the upper frame 2U is moved above the lower frame 2B, or the upper The lower frame 2B is moved below the air conditioner main body 3, the supply air chamber 4, and the return air chamber 5 suspended from the frame 2U. When moving, the air conditioner main body 3, the supply air chamber 4, and the return air chamber 5 hanging from the upper frame 2U should be positioned so as not to interfere with the support member 27 and the anti-vibration 2A provided on the lower frame 2B. The movement work is performed so that the machine body 3 is positioned between the two support members 27 . By fastening the rib plate 23 of the lower frame 2B to the angle member 21 of the upper frame 2U with bolts and nuts, the lower frame 2B is attached to the upper frame 2U, and the frame 2 is formed.

FIG. 12 is a diagram showing a state in which the attachment of the lower frame 2B is completed. After attaching the lower frame 2B to the upper frame 2U, the hoist suspending the upper frame 2U is lowered, and the lifting wire attached to the upper frame 2U is removed from the upper frame 2U. Then, the parts remaining to be attached are attached, cured, and the like, and the suspended air-conditioning unit 1 is made ready for transportation to the construction site.

FIG. 13 is a diagram showing how the auxiliary frame 103 is attached. As described above, the air conditioner main body 3 is provided with various types of piping. Therefore, in assembling the ceiling suspended air conditioning unit 1, the auxiliary frame 103 for supporting these pipes is attached to the upper frame 2U. The auxiliary frame 103 may be attached after the lower frame 2B is attached to the upper frame 2U. It may be attached to the upper frame 2U when the 2U is assembled.

The above manufacturing method completes the ceiling suspended air conditioning unit 1 . According to the manufacturing method described above, when an air conditioner that is designed to be installed in a suspended state, such as a commercially available concealed air conditioner, is attached to the frame 2 at the factory, the air conditioner is attached to the frame 2. Since it can be easily attached while maintaining the proper posture, the attachment portion provided on the air conditioner will not be damaged. Therefore, it is possible to efficiently manufacture the suspended air conditioning unit 1 .

In addition, the ceiling suspended air conditioning unit 1 can be transported from the factory to the construction site by the following method, for example. FIG. 14 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, the vehicle V is mounted without laying the ceiling-mounted air-conditioning unit 1 sideways as shown in FIG. 14(A). 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. 14(B), it is conceivable to load the suspended air-conditioning unit 1 on the bed 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.

However, when the ceiling suspended air conditioning unit 1 is transported in a sideways position as described above, there is a possibility that the air conditioner main body 3 will move relative to the frame 2 in a lateral direction with respect to the suspending direction of the suspending metal fittings 26 . 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, when transporting the ceiling suspended air conditioning unit 1 of the present embodiment, the following measures are taken to prevent such problems. FIG. 15 is a diagram showing members provided in the ceiling suspended air conditioning unit 1. As shown in FIG. As shown in FIG. 15, the ceiling-mounted air conditioning unit 1 of this embodiment is provided with temporary fixings 6 at the ceiling-mounting 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. When the ceiling suspended air conditioning unit 1 is laid over and the air conditioner main body 3 moves in the direction of gravity 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 moved. It is in a state as if it is supported from below by the support member 27 . Also, with respect to the anti-vibration rubber 35, the temporary fixing 6 restricts the relative movement between the suspension fitting 26 and the ceiling suspension mounting portion 34 so that the load in the horizontal direction of the air conditioner main body 3 is not applied to the frame 2. ing. The temporary fixings 6 and the support members 27 are attached to the frame 2 at appropriate timings during the manufacturing process of the ceiling suspended air conditioning unit 1 described above. The temporary fixing 6 is removed after transportation of the suspended air conditioning unit 1 is completed.

FIG. 16 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.

17A and 17B 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. As a matter of course, the regulating means such as the temporary fixing 6 and the support member 27 may be omitted when the ceiling suspended air conditioning unit 1 is not transported in a sideways posture. In addition, in FIG. 14A, the ceiling-mounted air conditioning unit 1 is shown in a non-stackable form, but the ceiling-mounted 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.

FIG. 18 is a diagram showing an example of a cart on which the ceiling suspended air conditioning unit 1 is placed. The ceiling suspended air conditioning unit 1 can be transported, for example, by a cart 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. 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. 19 is a diagram showing how to use the cart 112. As shown in FIG. For example, as shown in FIG. 19(A), 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 transferred 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. 19(B), the upper surface of the suspended air conditioning unit 1 faces upward. Therefore, the operator lifts the suspended air conditioning unit 1 to the ceiling while it is placed on a part of the frame constituting the side portion 112B and fixes it to the suspension bolt K, or places it on the side portion 112B. The suspended air-conditioning unit 1 can be easily installed on the ceiling by directly lifting the suspended air-conditioning unit 1 to the ceiling using an elevator or the like having a fork-shaped lifting part. A part of the frame that constitutes the side portion 112B is removed from the ceiling-suspended air conditioning unit 1 and reassembled to the carriage 112 after the ceiling-suspended air conditioning unit 1 is attached to the ceiling.

The ceiling suspended air conditioning unit 1 can be transported in this manner. 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 supply air chamber 4 and the return air chamber 5 are brought to the construction site separately and 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 assembling the ceiling-mounted air conditioning unit 1 . Therefore, compared with the case where the air conditioner main body 3, the supply air chamber 4 and the return air chamber 5 are separately brought into the construction site and then assembled, the total man-hours can be reduced. However, the ceiling suspended air conditioning unit 1 is not limited to a form completed in a factory. For example, the frame 2 is manufactured as a semi-finished product, transported to a place different from the place where the frame 2 is manufactured, the air conditioning equipment such as the air conditioner main body 3 is attached to the frame 2, and then installed at the construction site. There may be.

Moreover, the ceiling suspended air conditioning unit 1 of the above embodiment may be modified as follows. FIG. 20 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 . Further, the frame 2 is provided with an auxiliary frame 103 for supporting 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.

Since the air supply chamber 4 of the first modified example 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. 21 is a diagram comparing the outer dimensions of the ceiling-suspended air conditioning unit 1 of the above-described embodiment and the modification. Since the duct connecting portion 101 hardly protrudes from the outer surface of the air supply chamber 4 compared to the connecting opening portion 42, 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, as described above, the auxiliary frame 103 plays a role of protecting the pipes provided in the air conditioner main body 3 during assembly and transportation of the ceiling suspended air conditioning unit 1 . The purpose of the auxiliary frame 103 is to prevent anything that would hinder 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. 22 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. Further, the obstacle prevention cover 107 can be attached at any timing during the manufacturing process of the suspended air conditioning unit 1 . 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. 22(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. 22(B), the filter 109 is pulled out from the filter exchange opening 108 . Then, as shown in FIG. 22(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. 23 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. possible. 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.

K... Suspension bolt F... Anti-vibration V... Vehicle 1... Ceiling suspended air conditioning unit 2... Frame 3... Air conditioner main body 4... Supply air chamber 5... Return air chamber 6... Temporary fixing 2U... Upper frame 2B Lower frame 21 Angle material 22 Rib plate 23 Rib plate 24 Suspension part 25 Rod screw 26 Suspension fittings 27, 28 Support member 29 L-shaped bracket 2A Anti-vibration 31 Case 32 Auxiliary machine 33 Accessory pipe 34 Mounting portion for suspension 35 Anti-vibration rubber 41 Case 42 Connection opening 61 Top plate portion 62 Side wall portion 63 Notch portion 101 Duct connection portion 102 Cold/hot water pipe connection portion 103 Auxiliary frame 104 Angle member 107 Obstacle prevention cover 108 Filter replacement port 109 Filter 110 Obstacle 112 Truck 112A Bottom 112B Side 112C Hinge 112D Wheel

Claims (5)

an equipment assembly process for assembling a plurality of air conditioners together;
an upper frame attaching step of attaching, from above, an upper frame forming an upper portion of a frame integrally holding the plurality of air conditioners to the plurality of air conditioners assembled together;
a restricting means mounting step of attaching restricting means for restricting relative movement of at least one of the plurality of air conditioning equipment relative to the frame to a lower frame forming a lower portion of the frame;
a lower frame attaching step of raising the upper frame to which the plurality of air conditioners are attached and attaching the lower frame from below the plurality of air conditioners ;
The frame is formed by combining rods and is a member suspended from the ceiling of the building,
In the lower frame attaching step, the lower frame is attached at a position where the predetermined air conditioner does not interfere with the restricting means provided on the lower frame.
A method of manufacturing a ceiling suspended air conditioning unit. A preparation step of preparing a frame member for integrally holding a plurality of air conditioners ;
an upper frame assembling step of assembling an upper frame forming an upper portion of the frame;
a lower frame assembling step of assembling a lower frame forming a lower portion of the frame ;
The lower frame assembling step includes the restricting means attaching step.
The manufacturing method of the ceiling suspended air conditioning unit according to claim 1. further comprising a frame transferring step of transferring the upper frame assembled by the upper frame assembling step and the lower frame assembled by the lower frame assembling step;
The device assembling step, the upper frame attaching step, and the lower frame attaching step use the upper frame and the lower frame transferred from another location by the frame transferring step,
The manufacturing method of the ceiling suspended air conditioning unit according to claim 2 . In the lower frame attaching step, the upper frame to which the plurality of air conditioners are attached is lifted by a hoist, and the lower frame is attached from below the plurality of air conditioners.
A method for manufacturing a ceiling suspended air conditioning unit according to any one of claims 1 to 3 . further comprising an auxiliary frame attaching step of attaching an auxiliary frame for supporting pipes provided in the air conditioner to the upper frame;
A method for manufacturing a ceiling suspended air conditioning unit according to any one of claims 1 to 4 .

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