support device

Abstract

To provide a support device that allows smooth movement of second beam materials during its slide without loosening first beam materials, and suppresses the vibration of an air conditioner in the event of an earthquake.SOLUTION: A support device 1 holding an air conditioner 100 in a suspended state in a ceiling space has first beam materials 10 arranged to cross an upper face of the air conditioner 100, with both ends protruding outward from a side face of the air conditioner 100, second beam materials 20 arranged to be orthogonal to the first beam materials 10 and having a connection part 5 connecting the lower ends of hanging bolts 30 connected to a ceiling structure, and coupling parts 4 coupling the first beam materials 10 to the second beam materials 20. In the first beam materials 10, support bolts 7 supporting the air conditioner 100 are connected to their both ends, and by fastening the bolts 7, the first beam materials are tightly fixed to the upper face of the air conditioner 100. The coupling parts 4 are movable along the longitudinal direction of the first beam materials 10.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a support device that supports an air conditioner in a suspended state in a ceiling space. [Background technology]

[0002] Conventionally, a known support device for supporting an air conditioner in a suspended state in a ceiling space is one that forms a frame body by assembling a pair of first frame members that are installed parallel to each other along the left-right direction of the air conditioner and a pair of second frame members that are arranged perpendicular to the first frame members in a crisscross pattern, attaches support bolts to the frame body, and supports the air conditioner with the support bolts hanging down from the frame body (Patent Documents 1 and 2).

[0003] For example, in the support device of Patent Document 1, the intersections between the first frame member and the second frame member are fixed with bolts and nuts. Therefore, when trying to adjust the spacing between the pair of second frame members to match the installation spacing of the suspension bolts at the installation site, it is necessary to remove the bolts and nuts and form holes for inserting the bolts at new intersections, which significantly reduces work efficiency.

[0004] In contrast, the support device of Patent Document 2 is configured so that the second frame member to which the lower end of the suspension bolt is connected can slide in the longitudinal direction of the first frame member. Therefore, with the support device of Patent Document 2, there is no need to remove the bolts and nuts as in Patent Document 1. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Patent Publication No. 2021-165594 [Patent Document 2] Japanese Patent Publication No. 2020-133363 Summary of the Invention [Problem to be solved by the invention]

[0006] However, in the support device of Patent Document 2, the first frame member is attached to the air conditioner while floating above the top surface of the air conditioner. Therefore, when attempting to slide the second frame member along the longitudinal direction of the first frame member, the first frame member bends due to frictional force. When the first frame member bends, the frictional force increases further, preventing the second frame member from sliding smoothly. Therefore, there is still a problem of poor work efficiency when attempting to adjust the position where the second frame member intersects with the first frame member.

[0007] Furthermore, if the frame body is floating above the top surface of the air conditioner, as in the support devices of Patent Documents 1 and 2, the support bolts will vibrate during an earthquake, causing the vibration amplitude of the air conditioner to become larger than the vibration amplitude of the frame body, which could result in damage to the internal mechanisms and various piping of the air conditioner.

[0008] Therefore, the present invention has been made to solve the above problems, and aims to provide a support device that allows smooth movement of the second beam member relative to the first beam member without bending the first beam member, and that can suppress the vibration of the air conditioner more than conventional devices in the event of an earthquake. [Means for solving the problem]

[0009] In order to achieve the above object, the first solution is a support device that supports an air conditioner in a suspended state in a ceiling space, and includes a first beam member that is arranged to cross the upper surface of the air conditioner and has both ends that protrude outward from the side surfaces of the air conditioner, a second beam member that is arranged perpendicular to the first beam member and has connecting parts for connecting the lower ends of hanging bolts that are connected to a ceiling structure, and a connecting part that interconnects the first beam member and the second beam member, and the first beam member is: A horizontal plate portion, which is made up of an L-shaped metal fitting and is installed horizontally, is attached to the upper surface of the air conditioner in a joined state, and the horizontal plate portion Support bolts for supporting the air conditioner are connected to both ends, and by tightening the support bolts, The horizontal plate portion The connecting portion is tightly fixed to the upper surface of the air conditioner, The air conditioner is fixed to the upper surface of the air conditioner. The structure is characterized in that it is movable along the longitudinal direction of the first beam material.

[0010] A second solution is the first solution, characterized in that the connection portion is movable along the longitudinal direction of the second beam member.

[0011] A third solution is the first solution, characterized in that the connection portion is movable in the longitudinal direction of the second beam member beyond the connection position by the connecting portion.

[0012] The fourth solution is the first solution, characterized in that the connection portion is capable of changing its position between a first position in which the hanging bolt is erected and a second position in which the hanging bolt is tilted.

[0013] The fifth solution is the second or third solution, characterized in that the connection portion is capable of changing its position between a first position in which the hanging bolt is erected and a second position in which the hanging bolt is tilted.

[0014] The sixth solution is any of the first to fourth solutions, wherein the air conditioner is configured such that the air conditioner main body and the chamber are integrally connected to each other along the longitudinal direction of the second beam member, the first beam member is tightly fixed to the upper surface of the air conditioner main body, the second beam member is configured as a chamber support part with one end extending outward beyond the end face of the chamber, and a chamber support device that supports the end face of the chamber is attached to the chamber support part.

[0015] A seventh solution is the sixth solution, wherein the chamber support part is configured so that the mounting height position of the chamber support is adjustable. [Effects of the Invention]

[0016] According to the present invention, because the first beam is tightly fixed to the upper surface of the air conditioner, the first beam does not bend when the connecting portion connecting the first beam and the second beam moves along the longitudinal direction of the first beam, and the connecting portion can move smoothly with a constant friction force. Therefore, the second beam can move smoothly relative to the first beam, making it easier to adjust the position of the second beam.

[0017] Furthermore, because the first beam is tightly fixed to the top surface of the air conditioner, it is an integral structure with the air conditioner. Because a strong axial force acts on the support bolts, even if an earthquake occurs, the support bolts will not vibrate, and the first beam and the air conditioner will vibrate together. Therefore, in the event of an earthquake, it is possible to prevent the air conditioner from vibrating more than the first beam, reducing damage to the air conditioner's internal mechanisms and various piping. [Brief explanation of the drawings]

[0018] [Figure 1] FIG. [Figure 2] FIG. 2 is a perspective view showing a state in which the support device is assembled to the air conditioner. [Figure 3] FIG. 2 is a side view showing the state in which the support device is assembled to the air conditioner. [Figure 4] FIG. 2 is a front view showing the state in which the support device is assembled to the air conditioner. [Figure 5] FIG. 1 is a diagram illustrating an example of the configuration of an air conditioner. [Figure 6] FIG. 2 is a diagram showing an example of a first beam member. [Figure 7] FIG. 10 is a diagram showing an example of a second beam member. [Figure 8] FIG. 10 is a diagram illustrating an example of a configuration of a connecting portion. [Figure 9] FIG. 10 is a diagram illustrating an example of a configuration of a connection section. [Figure 10] 10A and 10B are diagrams illustrating other configuration examples of the connection portion. [Figure 11]1A and 1B are diagrams illustrating an example of the configuration of a chamber support. [Figure 12] FIG. 10 is a diagram showing the height adjustment function of the support fittings, using the blow-out chamber as an example. [Figure 13] 10A and 10B are diagrams illustrating an example of folding a hanging bolt. [Figure 14] 10A and 10B are diagrams illustrating an example of folding the support device. [Figure 15] 10A and 10B are diagrams illustrating an example in which the hanging part is detached from the support part and stored. [Figure 16] 10 is a diagram showing an example in which support devices accommodating hanging portions are stacked in multiple stages. FIG. [Figure 17] FIG. 10 is a diagram showing a modified example of the support device. [Figure 18] FIG. 10 is a diagram showing a state in which a support device according to a modified example is assembled to an air conditioner. DETAILED DESCRIPTION OF THE INVENTION

[0019] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings. In the drawings referred to below, common members are designated by the same reference numerals, and redundant descriptions thereof will be omitted.

[0020] FIG. 1 is a perspective view showing a support device 1 according to one embodiment of the present invention. The support device 1 supports a concealed air conditioner 100 in a suspended state in a ceiling space. The concealed air conditioner 100 is an air conditioner that is installed in a concealed state in a ceiling space between a ceiling structure, such as a ceiling slab or deck plate, and a ceiling panel. FIG. 2 is a perspective view showing the air conditioner 100 with the support device 1 attached. FIG. 3 is a side view showing the air conditioner 100 with the support device 1 attached, and FIG. 4 is a front view showing the air conditioner 100 with the support device 1 attached. FIG. 5 is a perspective view showing an example configuration of the air conditioner 100. The XYZ three-dimensional coordinate system shown in these drawings is a coordinate system in which the XY plane is the horizontal plane and the Z direction is the vertical direction, and is a coordinate system common to all of the drawings. The same applies to the three-dimensional coordinate systems shown in the other drawings.

[0021] First, the air conditioner 100 will be described. As shown in FIG. 5, the air conditioner 100 comprises an air conditioner main body 110, an outlet chamber 120, and an intake chamber 130, which are integrally assembled in series along the front-to-rear direction (Y direction) to form a box-shaped unit that is generally rectangular in plan view. In this embodiment, the left-to-right direction of the air conditioner 100 corresponds to the X direction in an XYZ three-dimensional coordinate system, and the front-to-rear direction corresponds to the Y direction in the same coordinate system. The air conditioner main body 110 is the main part of the air conditioner 100, and mechanical structures such as a heat exchanger and a fan are installed inside. In contrast, the outlet chamber 120 and the intake chamber 130 are lightweight chambers with hollow interiors. For example, the outlet chamber 120 is attached to the front side (front side) of the air conditioner main body 110, and the intake chamber 130 is attached to the rear side (rear side) of the air conditioner main body 110.

[0022] The air conditioner 100 is composed of a large proportion of the air conditioner main body 110 by weight, and the center of gravity of the entire air conditioner 100 is located in the air conditioner main body 110. The center of gravity of the air conditioner main body 110 is also located at a relatively low position. For this reason, as shown in FIG. 5, the air conditioner main body 110 is provided with mounting pieces 111, 111 at the bottom of both left and right side surfaces 110a, 110b for connecting bolt members such as suspension bolts. These mounting pieces 111, 111 have the strength to support the weight of the air conditioner main body 110. For example, mounting pieces 111, 111 are attached to the bottom of the left side surface 110a at two positions spaced a predetermined distance apart in the front-to-rear direction, and mounting pieces 111, 111 are also provided at the bottom of the right side surface 110b at the same positions as on the left side surface 110a. The air conditioner body 110 has a total of four mounting pieces 111 provided on both left and right side surfaces 110a, 110b, to which bolt members such as suspension bolts are connected, and the air conditioner body 110 is supported in a suspended state by these bolt members.

[0023] The air conditioner main body 110 is equipped with a filter unit 112 on the rear side. An air intake port is provided in the center of the rear end face 110d of the filter unit 112. The air conditioner main body 110 also has an air outlet in the center of the front end face 110c. The air conditioner main body 110 takes in air from the rear air intake port, removes dust and other particles using the filter unit 112, adjusts the temperature using an internal heat exchanger, and blows out the temperature-adjusted air from the front air outlet.

[0024] The air conditioner main body 110 has a sleeve-shaped connecting part 113 that protrudes forward from the periphery of the front air outlet. This connecting part 113 is for connecting the air outlet chamber 120 to the front side of the air conditioner main body 110. The air conditioner main body 110 also has a sleeve-shaped connecting part 115 that protrudes rearward from the periphery of the rear air intake. This connecting part 115 is for connecting the air intake chamber 130 to the rear side of the air conditioner main body 110. These connecting parts 113, 115 are slightly smaller in size than the end faces 110c, 110d in the front-to-rear direction.

[0025] The blowout chamber 120 has an opening in the center of the surface 120a facing the air conditioner main body 110, and air blown out from the air outlet of the air conditioner main body 110 can flow into the chamber through this opening. The blowout chamber 120 has a sleeve-shaped connecting part 122 that protrudes toward the air conditioner main body 110 around the periphery of the opening. This connecting part 122 can be fitted inside or outside of a connecting part 113 formed on the front side of the air conditioner main body 110. For example, the blowout chamber 120 can be attached integrally to the front side of the air conditioner main body 110 by driving a screw or the like from the outside with the connecting part 122 of the blowout chamber 120 fitted into the connecting part 113 of the air conditioner main body 110.

[0026] Furthermore, intake chamber 130 has an opening in the center of surface 130a facing air conditioner main body 110, and air within the chamber can be sent into air conditioner main body 110 through this opening. Air intake chamber 130 has a sleeve-shaped connecting part 132 that protrudes toward air conditioner main body 110 around the periphery of the opening. This connecting part 132 can be fitted inside or outside connecting part 115 formed on the rear side of air conditioner main body 110. For example, air intake chamber 130 can be attached integrally to the rear side of air conditioner main body 110 by driving a screw or the like from the outside with connecting part 132 of air intake chamber 130 fitted into connecting part 115 of air conditioner main body 110.

[0027] The intake chamber 130 has a duct connection portion (not shown), to which a duct for taking in outside air is connected. Furthermore, the blow-out chamber 120 has at least one duct connection portion 121 on its peripheral side surface, as shown in FIG. 5. A blower duct for guiding temperature-adjusted air to an indoor space is connected to this duct connection portion 121. Therefore, the air conditioner 100 can take in outside air into the air conditioner main body 110 via the intake chamber 130 and supply temperature-adjusted air to at least one indoor space via the blow-out chamber 120.

[0028] Next, we will explain the support device 1 that supports the above-mentioned air conditioner 100. As described above, the support device 1 of this embodiment supports the air conditioner 100 in which the air outlet chamber 120 and the air intake chamber 130 are integrally assembled to the front and rear of the air conditioner main body 110.

[0029] As shown in FIG. 1, the support device 1 includes a support part 2 and a hanging part 3. The support part 2 is configured to support the air conditioner 100. Specifically, the support part 2 is arranged on the upper surface of the air conditioner 100, and supports mounting pieces 111 provided on both the left and right sides of the air conditioner main body 110, as well as supporting end surfaces 120b, 130b of the outlet chamber 120 and the intake chamber 130. The hanging part 3 is provided on the upper part of the support part 2, and has its upper end attached to a ceiling structure such as a ceiling slab or deck plate, thereby suspending the air conditioner 100 supported by the support part 2 in the ceiling space.

[0030] The support portion 2 includes a first beam member 10, a second beam member 20, a connecting portion 4, a connecting portion 5, a support bolt 7, and a chamber support member 8.

[0031] 2, the first beam member 10 is arranged so that it crosses the upper surface of the air conditioner 100, more specifically the upper surface of the air conditioner main body 110 in the left-right direction, and both ends thereof protrude outward beyond the left and right side surfaces 110a, 110b of the air conditioner main body 110. On the upper surface of the air conditioner main body 110, two first beam members 10, 10 are arranged at a predetermined interval in the front-to-rear direction of the air conditioner 100.

[0032] 2, the second beam member 20 is arranged so that it crosses the top surface of the air conditioner 100, more specifically the top surface of the air conditioner main body 110 in the front-to-rear direction, and both ends thereof protrude outward beyond the end surface 120b of the outlet chamber 120 and the end surface 130b of the intake chamber 130 of the air conditioner 100. On the top surface of the air conditioner 100, two second beam members 20, 20 are arranged at a predetermined distance in the left-to-right direction of the air conditioner 100.

[0033] The first beam members 10, 10 and the second beam members 20, 20 are arranged perpendicular to each other on the upper surface side of the air conditioner main body 110, and a connecting portion 4 is located at the intersection of these members. The connecting portion 4 is a member that connects the first beam members 10 and the second beam members 20 to each other. The connecting portion 4 connects the pair of first beam members 10, 10 and the pair of second beam members 20, 20 to each other in a perpendicular state, and the first beam members 10, 10 and the second beam members 20, 20 form a frame body that supports the air conditioner 100.

[0034] FIG. 6 shows an example of the configuration of a first beam member 10, with FIGS. 6(a) and 6(b) being perspective views from different directions, and FIG. 6(c) being a cross-sectional view. The first beam member 10 is formed of an L-shaped metal fitting and has a horizontal plate portion 12 and a vertical plate portion 13 that are perpendicular to each other. The horizontal plate portion 12 is installed horizontally so as to be joined to the upper surface of the air conditioner 100. The vertical plate portion 13 extends upward from the end of the horizontal plate portion 12. This first beam member 10 is formed, for example, by extrusion molding of aluminum, and the vertical plate portion 13 has a double-plate structure as shown in FIG. 6(c). That is, the vertical plate portion 13 has a hollow portion 15 on the inside of the double-plate structure, and the outer plate has a slit 16 formed along the longitudinal direction of the first beam member 10 at the central height position.

[0035] As shown in FIG. 6(a), holes 14, 14 for inserting bolts are formed at both ends of the horizontal plate portion 12. The distance D1 between the holes 14, 14 is equal to the distance between the mounting pieces 111, 111 provided on both the left and right sides of the air conditioner main body 110. As shown in FIG. 1, support bolts 7, 7 are inserted into these holes 14, 14, and nuts are fastened to the upper ends of the support bolts 7, 7 that protrude above the horizontal plate portion 12. As a result, the support bolts 7, 7 are attached so that they hang down from both ends of the first beam member 10. Two nuts are also attached to the lower ends of the support bolts 7, 7. That is, the lower ends of the support bolts 7, 7 attached to both ends of the first beam member 10 are attached with a double-nut structure so that they sandwich the top and bottom of the mounting pieces 111, supporting both the left and right sides of the air conditioner main body 110. Therefore, the installation spacing between a pair of first beam members 10, 10 that cross the top surface of the air conditioner main body 110 in the left-right direction is equal to the front-to-back spacing between the mounting pieces 111, 111 provided on both the left and right side surfaces 110a, 110b of the air conditioner main body 110.

[0036] Furthermore, when support bolts 7, 7 are attached to both ends of the first beam member 10 and nuts attached to the upper surface of the horizontal plate portion 12 are tightened, an axial force (tensile force) is applied to both ends of the first beam member 10 by the support bolts 7, 7, and the first beam member 10 is fixed in a state in which the underside of the horizontal plate portion 12 is in close contact with the upper surface of the air conditioner main body 110, as shown in Figures 3 and 4. In this close contact and fixed state, the first beam member 10 becomes one with the upper surface of the air conditioner main body 110. Therefore, the first beam member 10 is firmly fixed so that it will not bend.

[0037] FIG. 7 is a diagram showing an example of the configuration of the second beam member 20. The second beam member 20 has the same configuration as the first beam member 10. That is, the second beam member 20 is formed of metal fittings with an L-shaped cross section, and has a horizontal plate portion 22 and a vertical plate portion 23 that are perpendicular to each other. The horizontal plate portion 22 is installed horizontally, and the vertical plate portion 23 stands upright from the end of the horizontal plate portion 22. This second beam member 20 is also formed, for example, by extrusion molding of aluminum, and the vertical plate portion 23 has a double-plate structure. Specifically, the vertical plate portion 23 has a hollow portion 25 on the inside of the double-plate structure, and a slit 26 is formed in the outer plate at the center height position along the longitudinal direction of the second beam member 20.

[0038] 7, holes 24, 24 for inserting bolts are formed in the horizontal plate portion 22. The spacing D2 between the holes 24, 24 corresponds to the installation spacing of the pair of first beam members 10, 10 installed on the upper surface of the air conditioner body 110. By attaching the connecting portions 4 to these holes 24, 24, the second beam member 20 is connected perpendicular to the pair of first beam members 10, 10.

[0039] Fig. 8 is a diagram showing an example configuration of the connecting part 4. The connecting part 4 has an L-shaped metal fitting 40 and a bolt member 45. The metal fitting 40 has a first plate part 41 and a second plate part 42 that are at right angles to each other. As shown in Fig. 8, the first plate part 41 is arranged along the vertical plate part 13 of the first beam member 10, and has a hole 43 in the center through which a bolt 47 is inserted. The second plate part 42 is arranged horizontally, and has a bolt 44 standing upright in the center.

[0040] The bolt member 45 has a plate-shaped head 46 and a bolt 47 protruding from the center of the plate-shaped head 46. The plate-shaped head 46 is a bolt head in the shape of a thin rectangular plate and can be received from the end of the first beam member 10 into the hollow portion 15 inside the vertical plate portion 13. When the plate-shaped head 46 is received in the hollow portion 15 of the vertical plate portion 13, the bolt 47 protrudes to the outside of the vertical plate portion 13 through the slit 16 in the vertical plate portion 13. The bolt 47 is inserted into a hole 43 formed in the first plate portion 41 of the metal fitting 40, and a nut 48 is attached to its tip. In addition, the bolt 44 of the metal fitting 40 is inserted into a hole 24 in the second beam member 20, and a nut 49 is attached to its tip. By tightening the nut 49, the metal fitting 40 is fixed to the underside of the second beam member 20.

[0041] When the nut 48 is not tightened tightly, the metal fitting 40 can move along the slit 16 formed in the first beam member 10. Therefore, the second beam member 20 fixed to the upper surface of the metal fitting 40 can move along the longitudinal direction of the first beam member 10, making it possible to adjust the position where the second beam member 20 intersects with the first beam member 10 in the left-right direction of the air conditioner 100. Once the intersecting position of the second beam member 20 with the first beam member 10 has been determined, the connecting portion 4 is fixed to the first beam member 10 by tightening the nut 48, and therefore the second beam member 20 is also fixed to the first beam member 10.

[0042] Additionally, the second beam member 20 is provided with a connection portion 5. The connection portion 5 is for connecting the suspension portion 3, which is connected to a ceiling structure such as a ceiling slab or deck plate. More specifically, the lower end of the suspension bolt 30 included in the suspension portion 3 is connected to the connection portion 5. This allows the suspension portion 3 to be attached in a state where it supports the support portion 2.

[0043] 9A and 9B show an example of the configuration of the connection part 5, with Fig. 9A showing the components of the connection part 5 disassembled, and Fig. 9B showing the connection part 5 attached to the second beam member 20. As shown in Fig. 9A, the connection part 5 has a fixing bracket 50 fixed to the second beam member 20 and a connecting bracket 60 that connects the lower end of the suspension bolt 30.

[0044] The fixing bracket 50 is made of a plate-shaped metal fitting and has holes 51, 52 at two upper and lower positions for inserting bolts. A connecting bracket 60 is attached to the upper hole 51 of this fixing bracket 50, and a bolt member 45 similar to the above is attached to the lower hole 52.

[0045] The connecting fitting 60 is an L-shaped fitting having a first plate portion 61 and a second plate portion 62 that are at right angles to each other. As shown in FIG. 9(a), the first plate portion 61 has a hole 63 formed therein through which a bolt 66 is inserted. The second plate portion 62 has a hole 64 formed in its center through which the suspension bolt 30 is inserted. A vibration-isolating member 6, such as a coil spring, is attached to the underside of the second plate portion 62. The suspension bolt 30 is inserted through the hole 64 in the second plate portion 62, and a nut is attached to the tip of the vibration-isolating member 6 that protrudes downward. As a result, the lower end of the suspension bolt 30 is held by the connecting fitting 60 via the vibration-isolating member 6. The vibration-isolating member 6 is a member that suppresses transmission of vibrations generated by operation of the air conditioner 100 installed in the ceiling space to the suspension bolt 30.

[0046] The connecting fitting 60 is attached to the fixing fitting 50 by inserting a bolt 66 while aligning the hole 63 provided in the first plate portion 61 with the position of the hole 51 in the fixing fitting 50, and then attaching a nut 53 to the tip of the bolt 66 protruding from the fixing fitting 50.

[0047] Additionally, the bolt member 45 attached to the hole 52 at the bottom of the fixing bracket 50 has its plate-shaped head 46 housed in the hollow portion 25 formed in the vertical plate portion 23 of the second beam member 20. As a result, the bolt 47 of the bolt member 45 protrudes to the outside of the vertical plate portion 23 through the slit 26 in the vertical plate portion 23. The bolt 47 is inserted through the hole 52 formed in the fixing bracket 50, and a nut 54 is attached to the tip of the bolt.

[0048] When the nut 54 is not tightened tightly, the fixing bracket 50 can slide along the slit 26 formed in the second beam member 20. Therefore, the connection part 5 that holds the lower end of the hanging bolt 30 can move along the longitudinal direction of the second beam member 20, and the position of the connection part 5 can be adjusted in the front-to-rear direction of the air conditioner 100 depending on the position where the hanging bolt 30 is installed. Once the position of the connection part 5 relative to the second beam member 20 has been determined, the connection part 5 can be fixed to the second beam member 20 by tightening the nut 54.

[0049] Furthermore, when the nut 53 is loosely tightened, the connecting fitting 60 can rotate in the R direction with the bolt 66 as the rotation axis, as shown in Figure 9(b). Therefore, the connecting fitting 60 can change its position between a first position in which it stands upright in the vertical direction and a second position in which it is tilted in the direction in which the second beam 20 extends. For example, when fixing the upper end of the hanging bolt 30 to a ceiling structure, the connecting fitting 60 can be fixed in the first position by tightening the bolt 66 and the nut 53 with the connecting fitting 60 in the first position.

[0050] FIG. 10 shows another example of the configuration of the connection portion 5. FIG. 9 shows an example in which the connecting fitting 60 is positioned above the horizontal plate portion 22 when connecting the connecting fitting 60 to the fixing bracket 50. In contrast, FIG. 10 shows an example in which the connecting fitting 60 is positioned outside the second beam member 20, rather than above the horizontal plate portion 22, when connecting the connecting fitting 60 to the fixing bracket 50. By positioning the connecting fitting 60 outside the second beam member 20 in this manner, the workability of inserting the hanging bolt 30 through the hole 64 of the connecting fitting 60 and attaching a nut 69 to the tip of the hanging bolt 30 protruding below the vibration-damping member 6 can be improved. That is, after the nut 69 is attached to the tip of the hanging bolt 30, the nut 69 is tightened with a predetermined torque. During this tightening, if the connecting fitting 60 is outside the second beam member 20, a power tool bit can be attached to the nut 69. 9(b), when the connecting fitting 60 is positioned above the horizontal plate portion 22, the horizontal plate portion 22 gets in the way, making it impossible to attach a bit of a power tool to the nut 69. Therefore, by attaching the connecting fitting 60 facing outward from the second beam member 20 as shown in FIG. 10, it becomes possible to tighten the nut 69 using a power tool, improving work efficiency.

[0051] 7, both longitudinal ends of the second beam 20 are configured as chamber support parts 21 that extend outward beyond the end faces 120b, 130b of the blow-out chamber 120 and the intake chamber 130. Chamber support members 8 that support the end faces 120b, 130b of the blow-out chamber 120 and the intake chamber 130 are attached to the chamber support parts 21.

[0052] 11 is a diagram showing an example of the configuration of the chamber support 8. The chamber support 8 includes a support bracket 80 fixed to the chamber support portion 21 of the second beam member 20, and a bolt member 45 similar to the above.

[0053] The support bracket 80 is an L-shaped bracket having a first plate portion 81 and a second plate portion 82 that are at right angles to each other. The first plate portion 81 is arranged parallel to the vertical plate portion 23 of the second beam member 20. An elongated hole 83 having a predetermined length in the vertical direction is formed in the upper half of this first plate portion 81. A bolt 47 of the bolt member 45 can be inserted into this elongated hole 83. The second plate portion 82 is arranged parallel to the end face 120b of the blow-out chamber 120 or the end face 130b of the intake chamber 130. A hole 84 for inserting a screw is formed in the lower part of the second plate portion 82.

[0054] The plate-shaped head 46 of the bolt member 45 is housed in the hollow portion 25 formed in the vertical plate portion 23 of the second beam member 20. As a result, the bolt 47 of the bolt member 45 protrudes to the outside of the vertical plate portion 23 through the slit 26 in the vertical plate portion 23. The bolt 47 is inserted into an elongated hole 83 formed in the first plate portion 81 of the support bracket 80, and a nut 85 is attached to the tip of the bolt 47.

[0055] When the nut 85 is not tightened tightly, the support bracket 80 can move along the slit 26 formed in the second beam member 20. Therefore, the chamber support 8 can move along the longitudinal direction of the second beam member 20, and the position of the chamber support 8 can be adjusted in the front-to-rear direction of the air conditioner 100 according to the position of the end face 120b of the outlet chamber 120 or the end face 130b of the intake chamber 130. Once the position of the chamber support 8 relative to the second beam member 20 has been determined, the chamber support 8 can be fixed to the second beam member 20 by tightening the nut 85.

[0056] Furthermore, when nut 85 is not tightened tightly, support bracket 80 can move up and down along elongated hole 83 formed in first plate portion 81, making it possible to adjust the height position of support bracket 80. Therefore, hole 84 formed in second plate portion 82 of support bracket 80 can be easily adjusted to be at a predetermined height position on end face 120b of blow-out chamber 120 or a predetermined height position on end face 130b of intake chamber 130, and blow-out chamber 120 or intake chamber 130 can be supported by driving a screw into a predetermined position on end face 120b of blow-out chamber 120 or end face 130b of intake chamber 130.

[0057] The outlet chamber 120 and the intake chamber 130 may be manufactured by a different manufacturer than the air conditioner main body 110, and the height positions of the upper surfaces of the outlet chamber 120 and the intake chamber 130 may differ from the height position of the upper surface of the air conditioner main body 110. FIG. 12 is a diagram showing the height adjustment function of the support bracket 80, using the outlet chamber 120 as an example. For example, as shown in FIG. 12(a), if the height position of the upper surface of the outlet chamber 120 is higher than the height position of the upper surface of the air conditioner main body 110, by raising the height position of the support bracket 80, it is possible to position the hole 84 at the upper edge of the end surface 120b of the outlet chamber 120, and it is possible to drive a screw 88 into the upper edge of the end surface 120b of the outlet chamber 120 through the hole 84. 12(b), when the height position of the top surface of the blow-out chamber 120 is lower than the height position of the top surface of the air conditioner body 110, by lowering the height position of the support bracket 80, it is possible to position the hole 84 at the upper edge of the end face 120b of the blow-out chamber 120, and it is possible to drive a screw 88 into the upper edge of the end face 120b of the blow-out chamber 120 through the hole 84. In other words, because the driving position of the screw 88 can be easily adjusted by loosening the nut 85, the support bracket 80 can appropriately support the end faces 120b, 130b of the blow-out chamber 120 and the intake chamber 130, whatever their sizes.

[0058] Next, a description will be given of the suspender 3. The suspender 3 includes a suspender bolt 30, a ceiling mounting bracket 31, a brace connecting bracket 32, and a brace bolt 33, as shown in Figs.

[0059] For example, the hanging unit 3 includes four hanging bolts 30 arranged on the upper portion of the support unit 2. Ceiling mounting brackets 31 are attached to the upper ends of the four hanging bolts 30. The ceiling mounting brackets 31 are used to connect the hanging bolts 30 to bolt members previously attached to the ceiling structure. For example, the ceiling mounting bracket 31 is similar to the "ceiling installation bracket" described in JP 2020-12344 A. That is, the ceiling mounting bracket 31 has mounting holes through which bolt members attached to the ceiling structure can be inserted. The ceiling mounting bracket 31 rotates around the axis of the hanging bolts 30 to align the mounting holes with the bolt members and insert the bolt members into the mounting holes. By attaching the ceiling mounting brackets 31 to the upper ends of the hanging bolts 30, the support device 1 can be assembled to the air conditioner 100 by floor work before suspending the air conditioner 100 in the ceiling space. After assembling the support device 1 to the air conditioner 100 on the floor, the air conditioner 100 and the support device 1 are simultaneously lifted and the ceiling mounting bracket 31 is attached to a bolt member hanging from the ceiling structure, thereby fixing the support device 1 supporting the air conditioner 100 to the ceiling structure. In other words, because the support device 1 has the ceiling mounting bracket 31 attached to the upper end of the hanging portion 3 (hanging bolt 30), the work of assembling the support device 1 to the air conditioner 100 can be performed simply and efficiently on the floor. Note that the ceiling mounting bracket 31 is not limited to one similar to the "ceiling installation bracket" described in JP 2020-12344 A, and a different structure may also be used.

[0060] The brace connectors 32 are attached near the upper and lower ends of each of the four suspension bolts 30. A brace bolt 33 is disposed diagonally between two adjacent suspension bolts 30, 30, and both ends of the brace bolt 33 are connected and fixed to different suspension bolts 30 by the brace connectors 32. For example, the four suspension bolts 30 are disposed at the four vertices of a rectangle in a plan view at the top of the support part 2, and the brace bolts 33 are disposed at positions corresponding to each side of the rectangle. That is, the brace bolts 33 are disposed on two faces parallel to the XZ plane and two faces parallel to the YZ plane. Furthermore, two brace bolts 33 are disposed so as to intersect between two suspension bolts 30, 30. As a result, the four suspension bolts 30 are reinforced by being interconnected by a total of eight brace bolts 33, thereby increasing seismic strength. It is more preferable to attach a cross-connecting metal fitting (not shown) to the intersection where the two brace bolts 33 intersect, and to fix the intersection of the two brace bolts 33 to each other.

[0061] 1 and 2, by interconnecting four suspension bolts 30 using a plurality of brace bolts 33, it is possible to suppress vibration of the support unit 2 and the air conditioner 100 in the event of an earthquake. Therefore, if the length of the suspension bolts 30 is equal to or greater than a predetermined length, it is preferable to configure a support device 1 in which the suspension bolts 30 are reinforced by attaching a brace bolt 33 between a pair of adjacent suspension bolts 30, 30, as shown in Figures 1 and 2. Note that if the length of the suspension bolts 30 is less than the predetermined length, the swing amplitude of the suspension bolts 30 in the event of an earthquake is relatively small, so a configuration in which no brace bolt 33 is disposed between the pair of suspension bolts 30, 30 may be adopted.

[0062] As described above, in the support device 1 of this embodiment, the connecting portion 4 connecting the first beam member 10 and the second beam member 20 at the support portion 2 is slidable along the longitudinal direction of the first beam member 10. Therefore, the second beam member 20 can also move along the longitudinal direction of the first beam member 10 together with the connecting portion 4. In order to align the ceiling mounting bracket 31 with the position of a bolt member previously attached to the ceiling structure, the second beam member 20 connected to the lower end of the suspension bolt 30 can be slid along the longitudinal direction (X direction) of the first beam member 10. At this time, the lower surface of the horizontal plate portion 12 of the first beam member 10 is tightly fixed to the upper surface of the air conditioner main body 110. Therefore, even if frictional force is generated when the connecting portion 4 slides along the slit 16 of the first beam member 10, the first beam member 10 will not bend due to the frictional force. Therefore, when sliding the second beam 20 along the longitudinal direction of the first beam 10, it is possible to move the second beam 20 with reduced friction, allowing the second beam 20 to slide more smoothly than before. As a result, it is possible to significantly improve the work efficiency when sliding the second beam 20 compared to before.

[0063] Furthermore, when the support bolts 7 are tightened to fix the first beam member 10 tightly to the top surface of the air conditioner 100, a strong axial force acts on the support bolts 7. Therefore, even if an earthquake occurs, the support bolts 7 will not vibrate, and the first beam member 10 and the air conditioner 100 will vibrate together. Therefore, this type of installation can prevent the air conditioner 100 from vibrating more than the first beam member 10 in the event of an earthquake, reducing damage to the internal mechanisms and various piping of the air conditioner.

[0064] Furthermore, in the support device 1 of this embodiment, the connection portion 5 to which the lower end of the suspension bolt 30 is connected can slide along the longitudinal direction (Y direction) of the second beam member 20. Therefore, when adjusting the ceiling mounting bracket 31 provided at the upper end of the suspension bolt 30 to the position of a bolt member previously attached to the ceiling structure, it is possible to adjust the position of the suspension bolt 30 in the Y direction as well. Furthermore, since the connection portion 5 can move in the longitudinal direction of the second beam member 20 beyond the connection position (intersection point) between the first beam member 10 and the second beam member 20 by the connecting portion 4, there is a high degree of freedom when adjusting the position of the suspension bolt 30, resulting in excellent work efficiency.

[0065] Furthermore, in the support device 1 of this embodiment, the connection portion 5 to which the lower end of the hanging bolt 30 is connected can change its position between a first position in which the hanging bolt 30 is erected and a second position in which the hanging bolt 30 is tilted. Therefore, for example, when transporting the support device 1 assembled to the air conditioner 100, the hanging bolt 30 can be folded onto the upper surface side of the air conditioner 100, which has the advantage of improving transport efficiency.

[0066] FIG. 13 is a diagram showing an example of folding the suspension bolt 30. To fold the suspension bolt 30, as shown in FIG. 13(a), the brace bolt 33 attached to the YZ plane of the support device 1 is removed, and the nut 53 of the connection portion 5 is loosened. This allows the connection fitting 60 of the connection portion 5 to rotate as described above, so the suspension bolt 30 can be folded toward the upper surface of the air conditioner main body 110, as shown in FIG. 13(b). At this time, there is no need to remove the brace bolt 33 attached to the XZ plane of the support device 1. Folding the suspension bolt 30 as shown in FIG. 13(b) reduces the space (volume) occupied by the support device 1 attached to the air conditioner 100. This makes it easier to transport the support device 1 attached to the air conditioner 100, improving transportation efficiency. Furthermore, when storing the support device 1 assembled to the air conditioner 100, multiple air conditioners 100 can be stored in a multi-tiered stack, which has the advantage of reducing storage space.

[0067] Furthermore, when the support device 1 is transported from a factory to an installation site, the air conditioner 100 may not be assembled to the support device 1. In this case, for example, as shown in FIG. 14(a), by folding the hanging bolts 30 when the support bolts 7 are not attached to the support device 1, it is possible to stack multiple support devices 1 in multiple layers and load them on a pallet 200 as shown in FIG. 14(b). Therefore, even when the support device 1 is transported from a factory to an installation site when the air conditioner 100 is not assembled to the support device 1, it is possible to load a large number of support devices 1 onto a single transport truck by folding the hanging portions 3, thereby improving the transportation efficiency of the support device 1.

[0068] However, when folding the suspension section 3 with the connecting fittings 60 connected to the fixing fittings 50 and stacking multiple support devices 1 in multiple tiers, it is necessary to install a spacer 201 between the upper and lower support devices 1, as shown in FIG. 14(b). The spacer 201 is intended to prevent the first beam member 10 of the upper support device 1 from directly hitting the suspension bolts 30 and brace bolts 33 of the lower support device 1. If the spacer 201 is not installed, the first beam member 10 of the upper support device 1 will hit the suspension bolts 30 and brace bolts 33 of the lower support device 1, applying a load to them, which can cause the suspension bolts 30 and brace bolts 33 to deform. Therefore, by interposing a spacer 201 between the upper support device 1 and the lower support device 1, the first beam material 10 of the upper support device 1 is prevented from directly hitting the hanging bolts 30 and brace bolts 33 of the lower support device 1, thereby preventing deformation of the hanging bolts 30 and brace bolts 33.

[0069] Furthermore, when transporting the support device 1 from a factory to an installation site without the air conditioner 100 assembled to the support device 1, the connecting fittings 60 may be detached from the fixing fittings 50 and the support device 1 may be stacked in multiple tiers. For example, as shown in FIG. 15 , the connecting fittings 60 are detached from the fixing fittings 50. Then, the second beam members 20 are moved in the direction of arrow F1 to widen the gap between the second beam members 20, 20, thereby forming a storage space 90 between the second beam members 20, 20. After that, the pair of hanging portions 3a, 3b removed from the support portion 2 are accommodated in the storage space 90 between the pair of second beam members 20, 20, as shown by arrows F2 and F3. This allows the hanging bolts 30 and brace bolts 33 to be completely accommodated between the pair of second beam members 20, 20, so that the hanging bolts 30 and brace bolts 33 do not become deformed even when multiple support devices 1 are stacked in multiple tiers.

[0070] FIG. 16 is a diagram showing a state in which multiple support devices 1 are stacked with the suspenders 3a and 3b housed between a pair of second beams 20, 20, as shown in FIG. 15. As shown in FIG. 16, by stacking the support devices with the suspenders 3a and 3b detached from the support units 2, multiple support devices 1 can be stacked in multiple tiers without the above-mentioned spacers 201. In this case, since there is no spacer 201 between the upper and lower support devices 1, the number of support devices 1 that can be stacked to a predetermined height can be increased. Therefore, when transporting the support devices 1 from a factory to an installation site, the transport efficiency of the support devices 1 can be further improved by detaching the suspenders 3a and 3b from the support units 2 and stacking them in multiple tiers.

[0071] Although the preferred embodiments of the present invention have been described above, the present invention is not limited to those described in the above embodiments. In other words, the present invention includes various modifications of the above embodiments.

[0072] For example, in the above embodiment, an example was given of the case where the air conditioner 100 is configured such that the outlet chamber 120 and the intake chamber 130 are attached to the air conditioner main body 110. However, the object supported by the support device 1 of this embodiment may be only the air conditioner main body 110, or may be an air conditioner 100 in which only the outlet chamber 120 is attached to the air conditioner main body 110. Furthermore, the air conditioner 100 is not necessarily limited to a concealed type air conditioner 100, and it may also be applied to an air conditioner that is arranged with a portion exposed to the indoor side through an opening in a ceiling panel, such as a package air conditioner, for example.

[0073] The support device 1 may also employ the configurations shown in FIGS. 17 and 18. FIGS. 17 and 18 are diagrams showing modified examples of the support device 1, with FIG. 17 showing the support device 1 in a state where it is not attached to the air conditioner 100, and FIG. 18 showing the support device 1 in a state where it is attached to the air conditioner 100. The support device 1 shown in FIGS. 17 and 18 differs from that shown in FIGS. 1 and 2 in that it includes engaging members 95 that are attached to the first beam members 10 and engage with the front-rear end faces 110c and 110d of the air conditioner main body 110. The engaging members 95 include the bolt members 45 and an engaging plate 96 described above. The bolts 47 of the bolt members 45 are formed relatively long, extending from the first beam members 10 and extending beyond the positions of the end faces 110c and 110d of the air conditioner main body 110. The engaging plates 96 are attached to the ends of the bolts 47 and tightened with nuts. The engaging plates 96 engage with the end faces 110c, 110d of the air conditioner body 110, and therefore, when the nuts are tightened, the position of the end faces 110c, 110d of the air conditioner body 110 is fixed. As a result, the engaging members 95 prevent the air conditioner body 110 from touching each other in the front-to-rear direction in the event of an earthquake. Therefore, by providing the engaging members 95, the support device 1 can suppress vibration of the air conditioner 100 in the front-to-rear direction. [Explanation of symbols]

[0074] 1...support device, 2...support part, 3...hanging part, 4...connecting part, 5...connecting part, 6...vibration-damping member, 7...support bolt, 8...chamber support, 10...first beam member, 20...second beam member, 21...chamber support part, 100...air conditioner, 110...air conditioner main body, 120...blow-out chamber (chamber), 130...intake chamber (chamber).

Claims

1. A support device that supports an air conditioner in a suspended state in a ceiling space, a first beam member disposed across the top surface of the air conditioner, with both ends protruding outward from the side surfaces of the air conditioner; A second beam member is arranged perpendicular to the first beam member and has a connection portion for connecting a lower end of a hanging bolt connected to a ceiling structure; a connecting portion that connects the first beam member and the second beam member to each other; Equipped with The first beam member is composed of metal fittings with an L-shaped cross section, and is attached with a horizontally installed horizontal plate portion joined to the top surface of the air conditioner. Support bolts for supporting the air conditioner are connected to both ends of the horizontal plate portion, and the horizontal plate portion is tightly fixed to the top surface of the air conditioner by tightening the support bolts. A support device characterized in that the connecting portion is movable along the longitudinal direction of the first beam material which is tightly fixed to the upper surface of the air conditioner.

2. The support device according to claim 1 , wherein the connecting portion is movable along the longitudinal direction of the second beam member.

3. The support device according to claim 1 , wherein the connecting portion is movable in the longitudinal direction of the second beam beyond a position where the connecting portion is connected.

4. 2. The support device according to claim 1, wherein the connection portion is capable of changing its position between a first position in which the suspension bolt is erected and a second position in which the suspension bolt is tilted.

5. 4. The support device according to claim 2, wherein the connecting portion is capable of changing its position between a first position in which the suspension bolt is erected and a second position in which the suspension bolt is tilted.

6. The air conditioner has a configuration in which an air conditioner main body and a chamber are integrally connected to each other along the longitudinal direction of the second beam member, The first beam member is tightly fixed to the upper surface of the air conditioner body, the second beam member is configured as a chamber support portion having one end extending outward beyond an end surface of the chamber, 5. The support device according to claim 1, wherein a chamber support for supporting an end surface of the chamber is attached to the chamber support portion.

7. 7. The support device according to claim 6, wherein the chamber support portion is capable of adjusting the mounting height position of the chamber support.

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