Temporary structure, indoor unit, and air conditioner

Abstract

This temporary latching structure is for, when mounting from below a decorative panel to an indoor unit body that is fixed to the ceiling, temporarily latching the decorative panel onto the indoor unit body. The temporary latching structure comprises: a hook member having a first hook part provided to the indoor unit body and a second hook part to be hung onto the first hook part from above; and a holding part that is provided to the decorative panel and that holds the hook member. The hook member is held by the holding part so as to be vertically movable between a first position and a second position lower than the first position. When the vertical position of the hook member is the second position, the second hook part is disposed at a position vertically facing the first hook part. When the vertical position of the hook member is the first position, the hook member is movable between the position where the second hook part and the first hook part vertically face each other and a position where the second hook part is disposed at a position different from that of the first hook part when viewed vertically.

Description

Technical Field

[0001] The present disclosure relates to a temporary hanging structure, an indoor unit, and an air conditioner.

Background Art

[0002] There is known a decorative panel temporary hanging structure for temporarily hanging a decorative panel on an indoor unit main body when attaching the decorative panel to the lower part of the indoor unit main body (indoor unit body) provided on the ceiling. For example, Patent Document 1 describes a decorative panel temporary hanging structure provided with a holding groove portion that holds a hook member in its position when the hook member is rotated to the use position.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In the above-described decorative panel temporary hanging structure, when temporarily hanging the decorative panel on the indoor unit main body, it is necessary to rotate the hook member to a position where it is fitted into the holding groove portion. Therefore, for example, an operator needs to hold the decorative panel with one hand and position it below the indoor unit main body, and then rotate the hook member with the other hand. Therefore, there has been a problem that it is difficult for one operator to temporarily hang the decorative panel on the indoor unit main body.

[0005] In view of the above circumstances, an object of one aspect of the present disclosure is to provide a temporary hanging structure that can improve the workability of the operation of temporarily hanging a decorative panel on an indoor unit main body, an indoor unit provided with such a temporary hanging structure, and an air conditioner provided with such an indoor unit.

Means for Solving the Problems

[0006] One embodiment of the temporary hanging structure according to this disclosure is provided in the indoor unit of an air conditioner comprising an indoor unit body fixed to the ceiling and a decorative panel attached to the indoor unit body, and is a temporary hanging structure for temporarily hanging the decorative panel on the indoor unit body when performing the work of attaching the decorative panel to the indoor unit body fixed to the ceiling from below, comprising: a first hook portion provided on the indoor unit body; a hook member having a second hook portion that is hooked onto the first hook portion from above; and a holding portion provided on the decorative panel for holding the hook member, wherein the hook member is Having a supported part, The hook member is held by the holding portion so as to be vertically movable between a first position and a second position lower than the first position, and when the vertical position of the hook member is the second position, the second hook portion is positioned vertically opposite to the first hook portion, and when the vertical position of the hook member is the first position, the hook member is movable between a position where the second hook portion is vertically opposite to the first hook portion and a position where the second hook portion is positioned vertically different from the first hook portion. the law of nature , The holding portion has a support portion capable of supporting the hook member from a first side in a first direction intersecting the vertical direction, the supported portion has a first extension portion capable of contacting the support portion and is supported by the support portion, the support portion supports the supported portion from the first side when the vertical position of the hook member is the first position and the second hook portion is in a different position from the first hook portion when viewed in the vertical direction, and supports the supported portion from the first side when the vertical position of the hook member is the second position and the second hook portion is positioned vertically opposite to the first hook portion, and the first extension portion extends in a direction that is positioned towards the first side as it goes upward. .

[0007] One embodiment of the indoor unit according to this disclosure is an indoor unit of an air conditioner, comprising: an indoor unit body fixed to the ceiling; a decorative panel located below the indoor unit body and attached to the indoor unit body; and the above-mentioned temporary mounting structure.

[0008] One embodiment of the air conditioner relating to this disclosure comprises the indoor unit and the outdoor unit described above. [Effects of the Invention]

[0009] According to this disclosure, the work efficiency of temporarily attaching a decorative panel to the indoor unit body of an air conditioner can be improved. [Brief explanation of the drawing]

[0010] [Figure 1] This is a schematic diagram showing the general configuration of an air conditioner in an embodiment. [Figure 2] This is a perspective view showing the indoor unit in the embodiment. [Figure 3] This is a cross-sectional view showing the indoor unit in the embodiment. [Figure 4] This is an exploded perspective view showing the indoor unit in the embodiment. [Figure 5] This is a perspective view showing the decorative panel body in the embodiment. [Figure 6] This is a perspective view showing the temporary mounting structure in the embodiment. [Figure 7] This is a perspective view showing a part of the temporary mounting structure in the embodiment, and is viewed from a different angle than Figure 6. [Figure 8] This is a view from above of a part of the temporary support structure in the embodiment. [Figure 9] This is a view of the holding part in the embodiment, seen from above. [Figure 10] This is a perspective view showing the hook member in the embodiment. [Figure 11] This is a cross-sectional perspective view showing the temporary mounting structure in the embodiment. [Figure 12] This is a cross-sectional view showing part of the procedure for temporarily attaching a decorative panel to the indoor unit body using the temporary attachment structure of the embodiment. [Figure 13] This is a cross-sectional view showing another part of the procedure for temporarily attaching the decorative panel to the indoor unit body using the temporary attachment structure of the embodiment. [Figure 14] This is a cross-sectional view showing yet another part of the procedure for temporarily attaching the decorative panel to the indoor unit body using the temporary attachment structure of the embodiment. [Figure 15] This is a perspective view showing part of the procedure for attaching the hook member to the holding part in the embodiment. [Modes for carrying out the invention]

[0011] Hereinafter, embodiments of the present disclosure will be described with reference to the drawings. Note that the scope of the present disclosure is not limited to the following embodiments and can be arbitrarily changed within the scope of the technical idea of the present disclosure. Also, in the following drawings, in order to make each configuration easier to understand, the scale and number in each structure may be different from those in the actual structure.

[0012] Also, the drawings appropriately show the X-axis, Y-axis, and Z-axis. The X-axis indicates one direction in the horizontal direction. The Y-axis indicates another direction in the horizontal direction. The Z-axis indicates the vertical direction. In the following description, the horizontal direction along the X-axis is referred to as the "front-rear direction X", the horizontal direction along the Y-axis is referred to as the "left-right direction Y", and the vertical direction along the Z-axis is referred to as the "vertical direction Z". The front-rear direction X, the left-right direction Y, and the vertical direction Z are directions orthogonal to each other. In the following description, the side in the vertical direction Z toward which the arrow of the Z-axis points (+Z side) is the upper side, and the side opposite to the side toward which the arrow of the Z-axis points (-Z side) is the lower side. Also, the side in the front-rear direction X toward which the arrow of the X-axis points (+X side) is the front side, and the side opposite to the side toward which the arrow of the X-axis points (-X side) is the rear side. Also, the side in the left-right direction Y toward which the arrow of the Y-axis points (+Y side) is the left side, and the side opposite to the side toward which the arrow of the Y-axis points (-Y side) is the right side. Note that, in the following embodiments, the left-right direction Y corresponds to the "first direction" and the "crossing direction" that cross the vertical direction Z, and the front-rear direction X corresponds to the "second direction" that crosses the vertical direction Z and is orthogonal to the first direction.

[0013] FIG. 1 is a schematic diagram showing a schematic configuration of an air conditioner 100 in the present embodiment. The air conditioner 100 is a device that uses a refrigeration cycle in which a refrigerant 19 circulates. As shown in FIG. 1, the air conditioner 100 includes an outdoor unit 10, an indoor unit 20, and a circulation path portion 18. The outdoor unit 10 is disposed outdoors. The indoor unit 20 is disposed indoors. The outdoor unit 10 and the indoor unit 20 are connected to each other by a circulation path portion 18 through which the refrigerant 19 circulates. The outdoor unit 10 and the indoor unit 20 are heat exchange units that perform heat exchange with air.

[0014] The air conditioner 100 can adjust the temperature of the indoor air by performing heat exchange between the refrigerant 19 flowing in the circulation path section 18 and the indoor air where the indoor unit 20 is disposed. Examples of the refrigerant 19 include fluorine-based refrigerants or hydrocarbon-based refrigerants having a low global warming potential (GWP: Global Warming Potential). Examples of the refrigerant 19 include any single refrigerant such as R1234yf, R1234ze, R32, or R290, or a mixed refrigerant of any two or more of these, or a mixed refrigerant of any of these and another refrigerant. Further, examples of the refrigerant 19 include a mixed refrigerant containing R1132(E) or a mixed refrigerant containing R1123. Further, examples of the refrigerant 19 include mixed refrigerants such as R516A, R445A, R444A, R454C, R444B, R454A, R455A, R457A, R459B, R452B, R454B, R447B, R447A, R446A, or R459A.

[0015] The outdoor unit 10 includes a housing 11, a compressor 12, a heat exchanger 13, a flow rate adjustment valve 14, a blower 15, a four-way valve 16, and a control unit 17. Inside the housing 11, the compressor 12, the heat exchanger 13, the flow rate adjustment valve 14, the blower 15, the four-way valve 16, and the control unit 17 are accommodated.

[0016] The compressor 12, the heat exchanger 13, the flow rate adjustment valve 14, and the four-way valve 16 are provided in a portion of the circulation path section 18 that is located inside the housing 11. The compressor 12, the heat exchanger 13, the flow rate adjustment valve 14, and the four-way valve 16 are connected by a portion of the circulation path section 18 that is located inside the housing 11.

[0017] The four-way valve 16 is installed in the part of the circulation path 18 that is connected to the discharge side of the compressor 12. The four-way valve 16 can reverse the direction of the refrigerant 19 flowing through the circulation path 18 by switching a part of the circulation path 18. If the path connected by the four-way valve 16 is the path shown by the solid line on the four-way valve 16 in Figure 1, the refrigerant 19 flows through the circulation path 18 in the direction shown by the solid arrow in Figure 1. On the other hand, if the path connected by the four-way valve 16 is the path shown by the dashed line on the four-way valve 16 in Figure 1, the refrigerant 19 flows through the circulation path 18 in the direction shown by the dashed arrow in Figure 1.

[0018] The indoor unit 20 comprises a housing 21, a heat exchanger 22, and a blower 23. The housing 21 houses the heat exchanger 22 and the blower 23 inside. The indoor unit 20 is capable of both cooling operation, which cools the air in the room in which the indoor unit 20 is located, and heating operation, which heats the air in the room in which the indoor unit 20 is located.

[0019] When the indoor unit 20 is in cooling operation, the refrigerant 19 flowing through the circulation path 18 flows in the direction indicated by the solid arrow in Figure 1. In other words, when the indoor unit 20 is in cooling operation, the refrigerant 19 flowing through the circulation path 18 circulates by passing through the compressor 12, the heat exchanger 13 of the outdoor unit 10, the flow control valve 14, and the heat exchanger 22 of the indoor unit 20 in that order, before returning to the compressor 12. In cooling operation, the heat exchanger 13 in the outdoor unit 10 functions as a condenser, and the heat exchanger 22 in the indoor unit 20 functions as an evaporator.

[0020] On the other hand, when the indoor unit 20 is in heating operation, the refrigerant 19 flowing through the circulation path 18 flows in the direction shown by the dashed line in Figure 1. In other words, when the indoor unit 20 is in heating operation, the refrigerant 19 flowing through the circulation path 18 circulates by passing through the compressor 12, the heat exchanger 22 of the indoor unit 20, the flow control valve 14, and the heat exchanger 13 of the outdoor unit 10 in that order, before returning to the compressor 12. During heating operation, the heat exchanger 13 in the outdoor unit 10 functions as an evaporator, and the heat exchanger 22 in the indoor unit 20 functions as a condenser.

[0021] Next, the indoor unit 20 will be described in more detail. Figure 2 is a perspective view showing the indoor unit 20 in this embodiment. Figure 3 is a cross-sectional view showing the indoor unit 20 in this embodiment. Figure 4 is an exploded perspective view showing the indoor unit 20 in this embodiment.

[0022] As shown in Figures 2 to 4, the indoor unit 20 in this embodiment is a ceiling-mounted indoor unit. As shown in Figure 3, the indoor unit 20 is attached to the ceiling C. The ceiling C is a double ceiling having a ceiling slab (not shown) and ceiling panels CB spaced apart below the ceiling slab. The ceiling slab is a structure such as a slab or beam of the upper floor. The ceiling panels CB are plate-shaped with their surface facing the vertical direction Z. The lower surface of the ceiling panels CB is the ceiling surface CBs facing the room. The ceiling panels CB have holes CBa formed in them that penetrate the ceiling panels CB in the vertical direction Z. As shown in Figure 4, in this embodiment, the holes CBa are square-shaped holes having a pair of sides extending in the front-to-back direction X and a pair of sides extending in the left-to-right direction Y. Hereinafter, the space provided between the ceiling slab (not shown) and the ceiling panels CB in the vertical direction Z will be referred to as the space above the ceiling CA. In this embodiment, the indoor unit 20 is installed embedded in the space above the ceiling CA.

[0023] The indoor unit 20 comprises an indoor unit body 29 and a decorative panel 30. The indoor unit body 29 is fixed to the ceiling C. More specifically, as shown in Figure 3, the indoor unit body 29 is fixed to the ceiling slab (not shown) of the ceiling C by suspension bolts HB extending in the vertical direction Z. The entire indoor unit body 29 is located in the space above the ceiling CA.

[0024] As shown in Figure 2, the indoor unit body 29 comprises a housing 21 and an electrical unit 24. The housing 21 is a roughly rectangular box shape with an opening at the bottom. When viewed in the vertical direction Z, the housing 21 is roughly square in shape, having a pair of sides extending in the front-to-back direction X and a pair of sides extending in the left-to-right direction Y. The electrical unit 24 is mounted on the outer surface of the housing 21. In the example in Figure 2, the electrical unit 24 is mounted on the rear (-X side) surface of the outer surface of the housing 21. The electrical unit 24 has a control unit for controlling the indoor unit 20.

[0025] As shown in Figure 3, the indoor unit body 29 includes a heat exchanger 22, a blower 23, a drain pan 25, and a bell mouth 26. The blower 23 has an impeller 23a that is rotatable around a rotation axis R extending in the vertical direction Z. By rotating around the rotation axis R, the impeller 23a draws in air from below and blows out the drawn-in air radially outward from the rotation axis R. The heat exchanger 22 is arranged to surround the impeller 23a. In the following description, the radial direction around the rotation axis R may be simply referred to as the "radial direction".

[0026] The drain pan 25 is located below the heat exchanger 22. The drain pan 25 is fitted into an opening at the bottom of the housing 21. The drain pan 25 has a first hole 25a and a second hole 25b that penetrate the drain pan 25 vertically in the Z direction. The first hole 25a penetrates the central part of the drain pan 25 in the vertical Z direction. As shown in Figure 4, in this embodiment, the first hole 25a is a circular hole centered on the axis of rotation R. The lower end of the first hole 25a opens to the bottom surface of a recess 25c formed on the lower surface of the drain pan 25. The recess 25c is a recess that is recessed upwards. The bottom surface of the recess 25c is the upper surface of the inner surface of the recess 25c that faces downwards. Viewed in the vertical direction Z, the inner edge of the recess 25c is square in shape, having a pair of sides extending in the front-to-back direction X and a pair of sides extending in the left-to-right direction Y, and surrounds the first hole 25a.

[0027] The second hole portion 25b is located radially outward from the first hole portion 25a and the recess portion 25c. In this embodiment, a plurality of second holes 25b are formed. More specifically, four second holes 25b are formed. The four second holes 25b are arranged surrounding the first hole portion 25a. The four second holes 25b include a pair of second holes 25b that are positioned on either side of the first hole portion 25a in the front-rear direction X and extend in the left-right direction Y, and a pair of second holes 25b that are positioned on either side of the first hole portion 25a in the left-right direction Y and extend in the front-rear direction X.

[0028] As shown in Figure 3, the bell mouth 26 is located below the impeller 23a. The bell mouth 26 is substantially cylindrical with openings on both sides in the vertical direction Z. The bell mouth 26 is located within the first hole 25a. The radial outer edge at the lower end of the bell mouth 26 is fixed, for example, to the upper inner surface of the recess 25c. As shown in Figure 4, the lower opening of the bell mouth 26 is exposed and opens below the indoor unit body 29.

[0029] The decorative panel 30 is located below the indoor unit body 29. The decorative panel 30 is attached to the indoor unit body 29. In this embodiment, the decorative panel 30 is fixed to the lower surface of the indoor unit body 29 by four bolts 80. As shown in Figure 3, in this embodiment, the decorative panel 30 is fitted into a hole CBa formed in the ceiling C. The outer edge of the decorative panel 30 is positioned opposite the inner edge of the hole CBa with a small gap in between. In this embodiment, the lower surface of the decorative panel 30 is positioned in the same position in the vertical direction Z as the ceiling surface CBs, which is the lower surface of the ceiling board CB.

[0030] In the following description, for a given object, the side closer to the center of the decorative panel 30 in the left-right direction Y may be referred to as the "inside in the left-right direction," and the side further from the center of the decorative panel 30 in the left-right direction Y may be referred to as the "outside in the left-right direction." In this embodiment, the center of the decorative panel 30 in the left-right direction Y is the position in the left-right direction Y on the rotation axis R. In this embodiment, the inside in the left-right direction corresponds to the "first side" of the first direction, and the outside in the left-right direction corresponds to the "second side" of the first direction.

[0031] As shown in Figure 2, the decorative panel 30 comprises a decorative panel body 31, a grille 32, and four covers 33. Figure 5 is a perspective view showing the decorative panel body 31. As shown in Figure 5, the decorative panel body 31 is a frame-shaped member when viewed in the vertical direction Z. In this embodiment, the decorative panel body 31 is a substantially square frame shape when viewed in the vertical direction Z, having a pair of parts extending in the front-to-back direction X and a pair of parts extending in the left-to-right direction Y. The decorative panel body 31 is fixed to the indoor unit body 29 at each of its four corners by bolts 80.

[0032] In this embodiment, the decorative panel body 31 is composed of a frame-shaped lower member 31a and a frame-shaped upper member 31b fixed to the upper surface of the lower member 31a. In this embodiment, the lower member 31a is a substantially plate-shaped member whose plate surface faces the vertical direction Z. The inner edge of the lower member 31a protrudes radially inward from the inner edge of the upper member 31b.

[0033] The decorative panel body 31 has an intake port 20a and an outlet port 20b formed therein. The intake port 20a and the outlet port 20b penetrate the decorative panel body 31 in the vertical direction Z. The intake port 20a is formed by the inner portion of the frame-shaped decorative panel body 31. When viewed in the vertical direction Z, the intake port 20a is approximately square in shape, having a pair of sides extending in the front-to-back direction X and a pair of sides extending in the left-to-right direction Y. As shown in Figure 3, the intake port 20a is positioned opposite the bell mouth 26 below it.

[0034] The outlet 20b is located radially outward of the suction port 20a. As shown in Figure 5, in this embodiment, multiple outlets 20b are formed. More specifically, four outlets 20b are formed. The four outlets 20b are arranged surrounding the suction port 20a. The four outlets 20b include a pair of outlets 20b that are positioned on either side of the suction port 20a in the front-to-back direction X and extend in the left-to-right direction Y, and a pair of outlets 20b that are positioned on either side of the suction port 20a in the left-to-right direction Y and extend in the front-to-back direction X. As shown in Figure 3, each outlet 20b is positioned opposite to each other below each second hole 25b formed in the drain pan 25.

[0035] As shown in Figure 2, the decorative panel body 31 is fitted with a grille 32 that covers the intake port 20a. The grille 32 has multiple ventilation holes arranged in a grid pattern. Covers 33 are fitted to each of the four corners on the lower surface of the decorative panel body 31 to cover the heads of the bolts 80 from below. The covers 33 may be detachably attached to the decorative panel body 31. Alternatively, the covers 33 may be connected to the decorative panel body 31 via a hinge (not shown) and rotatably attached to the decorative panel body 31 around the hinge. In this case, the heads of the bolts 80 can be exposed downwards by rotating and opening the covers 33.

[0036] When the blower 23 is driven and the impeller 23a rotates around the rotation axis R, indoor air is drawn into the intake port 20a through multiple ventilation holes formed in the grille 32. The air drawn into the intake port 20a is drawn into the blower 23 via the inside of the bell mouth 26 and blown radially outward from the blower 23. The air blown out from the blower 23 passes through the heat exchanger 22 and then flows downward through each of the second holes 25b formed in the drain pan 25 and is blown into the room through each of the outlets 20b.

[0037] As shown in Figure 3, a sealing member 27 is provided between the indoor unit body 29 and the decorative panel 30 in the vertical direction Z, sealing the space between the intake port 20a and the bell mouth 26 and the outlet port 20b and the second hole 25b. In this embodiment, the sealing member 27 is a sponge-like material fixed to the upper surface of the decorative panel 30.

[0038] As shown in Figure 4, the indoor unit 20 is equipped with a temporary mounting structure 40. The temporary mounting structure 40 is a structure for temporarily mounting the decorative panel 30 to the indoor unit body 29, which is fixed to the ceiling C, when attaching the decorative panel 30 from below. In this embodiment, a pair of temporary mounting structures 40 are provided at intervals in the left-right direction Y, which is an intersecting direction that intersects the vertical direction Z. In this embodiment, the pair of temporary mounting structures 40 are provided at a position offset from the center of the decorative panel 30 in the front-rear direction X, which intersects the vertical direction Z and is perpendicular to the left-right direction Y. More specifically, the pair of temporary mounting structures 40 are provided at a position offset in front of (+X side) the center of the decorative panel 30 in the front-rear direction X.

[0039] The pair of temporary mounting structures 40 are similar in structure to each other, except that they are arranged symmetrically in the left-right direction Y. Therefore, in the following description, the temporary mounting structure 40 located on the right side (-Y side) will be described as a representative of the pair of temporary mounting structures 40, and the description of the temporary mounting structure 40 located on the left side (+Y side) may be omitted. Note that in the temporary mounting structure 40 located on the right side, the inner side in the left-right direction is the left side (+Y side), and the outer side in the left-right direction is the right side (-Y side). In the temporary mounting structure 40 located on the left side, the inner side in the left-right direction is the right side (-Y side), and the outer side in the left-right direction is the left side (+Y side).

[0040] Figure 6 is a perspective view showing the temporary mounting structure 40. Figure 7 is a perspective view showing a part of the temporary mounting structure 40, viewed from a different angle than Figure 6. Figure 8 is a view of a part of the temporary mounting structure 40 from above. Figure 9 is a view of the holding part 60 of the temporary mounting structure 40, which will be described later, from above.

[0041] As shown in Figure 6, the temporary hanging structure 40 comprises a first hook portion 50, a holding portion 60, and a hook member 70. As shown in Figure 4, the first hook portion 50 is provided on the indoor unit body 29. In this embodiment, the first hook portion 50 is a sheet metal member. The first hook portion 50 protrudes inward in the left-right direction from the inner surface of the recess 25c in the left-right direction Y. The first hook portion 50 is located in front of the rotation axis R (+X direction).

[0042] As shown in Figure 6, the first hook portion 50 has a hook body portion 51 that protrudes inward in the left-right direction (+Y side) from the inner surface of the recess 25c, and a bent portion 52 that connects to the left-right inward end of the hook body portion 51. The hook body portion 51 is plate-shaped with its plate surface facing the vertical direction Z. The bent portion 52 is bent upward from the left-right inward end of the hook body portion 51. The bent portion 52 is positioned higher as it moves inward in the left-right direction. In this embodiment, the dimension of the bent portion 52 in the front-rear direction X decreases as it moves away from the hook body portion 51.

[0043] The holding portion 60 is provided on the decorative panel 30. The holding portion 60 is the part that holds the hook member 70. In this embodiment, the holding portion 60 is formed on the inner edge of the decorative panel body 31. More specifically, the holding portion 60 is formed on the left-right edge portion 31c of the inner edge of the decorative panel body 31, which is located in the left-right direction Y and extends in the front-rear direction X. The left-right edge portion 31c is the part of the lower member 31a that protrudes inward in the left-right direction than the upper member 31b. The left-right edge portion 31c has a bottom wall portion 31d that protrudes inward in the left-right direction than the upper member 31b, and an inner wall portion 31e that protrudes upward from the left-right inner end of the bottom wall portion 31d. The bottom wall portion 31d and the inner wall portion 31e extend in the front-rear direction X.

[0044] As shown in Figures 6 to 9, the retaining portion 60 has a recess 61 that extends from the left-right inner (+Y side) end of the left-right edge portion 31c to the left-right outer (-Y side). The interior of the recess 61 penetrates the left-right edge portion 31c in the vertical direction Z. The presence of the recess 61 divides a portion of the inner wall portion 31e in the front-rear direction X.

[0045] In the following explanation, for a given object, the side closer to the center of the recess 61 in the front-to-back direction X may be referred to as the "inner side in the front-to-back direction," and the side further from the center of the recess 61 in the front-to-back direction X may be referred to as the "outer side in the front-to-back direction."

[0046] As shown in Figure 6, the holding portion 60 has a pair of side wall portions 64a and 64b that project upward from both edges of the bottom wall portion 31d that sandwich the recess 61 in the front-rear direction X. Side wall portion 64a is located forward (+X direction) of side wall portion 64b. The pair of side wall portions 64a and 64b extend in the left-right direction Y. The pair of side wall portions 64a and 64b each constitute the surfaces located on both sides of the inner surface of the recess 61 in the front-rear direction X. The left-right inner ends of the pair of side wall portions 64a and 64b are connected to both edges in the front-rear direction X of the portion of the inner wall portion 31e that is divided in the front-rear direction X by the recess 61. The upper ends of the pair of side wall portions 64a and 64b are located above the upper ends of the inner wall portion 31e.

[0047] The holding portion 60 has an outer wall portion 61a that protrudes upward from the left-right outer edge (-Y side) of the bottom wall portion 31d. The outer wall portion 61a extends in the front-rear direction X. The outer wall portion 61a connects the left-right outer ends of the pair of side wall portions 64a and 64b in the front-rear direction X. The left-right inner (+Y side) surface of the outer wall portion 61a constitutes the left-right outer bottom surface of the recess 61. The upper end of the outer wall portion 61a is located above the upper end of the inner wall portion 31e. The upper end of the outer wall portion 61a is located at the same position in the vertical direction Z as the upper ends of the pair of side wall portions 64a and 64b.

[0048] The holding section 60 has a pair of housing sections 62a and 62b. The pair of housing sections 62a and 62b protrude upward from the bottom wall section 31d. The pair of housing sections 62a and 62b are positioned on either side of the outer wall section 61a in the front-rear direction X. The pair of housing sections 62a and 62b extend in the front-rear direction X. The pair of housing sections 62a and 62b are roughly rectangular parallelepipeds that are long in the front-rear direction X. Housing section 62a is located in front of housing section 62b (+X direction). The inner ends of the pair of housing sections 62a and 62b in the front-rear direction are connected to both ends of the outer wall section 61a in the front-rear direction X, respectively. Also, the inner ends of the pair of housing sections 62a and 62b in the front-rear direction are connected to the outer portions in the left-right direction of the pair of side wall sections 64a and 64b, respectively.

[0049] The pair of housing sections 62a and 62b are positioned away from the inner wall section 31e in the left-right direction outward (-Y side). The pair of housing sections 62a and 62b are positioned opposite each other on the left-right direction inward (+Y side) of the upper member 31b. In this embodiment, the upper ends of the pair of housing sections 62a and 62b are located at the same position in the vertical Z direction as the upper end of the outer wall section 61a and the upper ends of the pair of side wall sections 64a and 64b.

[0050] A pair of housing sections 62a and 62b each have a pair of housing holes 63a and 63b formed within them. In this embodiment, the pair of housing holes 63a and 63b penetrate the pair of housing sections 62a and 62b in the front-rear direction X. As shown in Figure 7, the inner ends of the pair of housing holes 63a and 63b in the front-rear direction penetrate the pair of side walls 64a and 64b and open into the interior of the recess 61. The pair of housing holes 63a and 63b penetrate the bottom wall 31d in the vertical direction Z and open into the lower surface of the bottom wall 31d.

[0051] As shown in Figures 8 and 9, the retaining portion 60 has a first protrusion 66 and a pair of second protrusions 67a and 67b. The first protrusion 66 and the pair of second protrusions 67a and 67b project inward in the left-right direction (+Y side) from the upper end of the outer wall portion 61a. The first protrusion 66 projects inward in the left-right direction from the center of the outer wall portion 61a in the front-rear direction X. A recessed portion 66a is formed on the upper surface of the first protrusion 66, which is recessed downward. The recessed portion 66a is open inward in the left-right direction.

[0052] The pair of second protrusions 67a and 67b are positioned on either side of the first protrusion 66 in the front-rear direction X. The second protrusion 67a is located in front of the second protrusion 67b (+X direction). The pair of second protrusions 67a and 67b each connect the pair of side wall portions 64a and 64b to the first protrusion 66. The inner (+Y side) ends of the pair of second protrusions 67a and 67b are located outward (-Y side) in the left-right direction than the inner end of the first protrusion 66 in the left-right direction.

[0053] The holding portion 60 has a pair of support portions 65a and 65b. The pair of support portions 65a and 65b protrude inward in the front-rear direction from the respective ends of the side wall portions 64a and 64b on the left-right inward (+Y side). In other words, the pair of support portions 65a and 65b protrude toward each other in the front-rear direction X. Support portion 65a is located in front of support portion 65b (+X direction).

[0054] As shown in Figure 6, in this embodiment, the pair of support parts 65a and 65b are substantially rectangular prisms extending in the vertical direction Z. The pair of support parts 65a and 65b are positioned opposite each other with a gap between them on the left-right inner side (+Y side) of the pair of second protrusions 67a and 67b. As shown in Figure 9, the distance between the pair of support parts 65a and 65b in the front-rear direction X is greater than the front-rear direction X dimension of the first protrusion 66. The front-rear inner ends of the pair of support parts 65a and 65b are located further outward in the front-rear direction than each of the front-rear ends of the first protrusion 66 in the front-rear direction X. The pair of support parts 65a and 65b are located further inward in the left-right direction than the left-right inner ends of the first protrusion 66.

[0055] The retaining portion 60 has a pair of support walls 68a and 68b. The pair of support walls 68a and 68b are part of the bottom wall portion 31d. The pair of support walls 68a and 68b are positioned on the front-rear outer sides of the pair of housing portions 62a and 62b, respectively. Support wall 68a is located in front of (+X direction) support wall 68b. The pair of support walls 68a and 68b extend outward in the front-rear direction from the respective front-rear outer edges of the pair of housing holes 63a and 63b.

[0056] As shown in Figures 6 to 8, the hook member 70 is held by the holding part 60. More specifically, the hook member 70 is held by the holding part 60 so as to be movable in the vertical Z direction between a first position P1 and a second position P2 which is lower than the first position P1. The first position P1 and the second position P2 are the relative vertical Z positions of the hook member 70 with respect to the holding part 60. Figures 6, 7, and 8 show the case where the hook member 70 is in the second position P2. When the decorative panel 30 is attached to the indoor unit body 29, the hook member 70 is in the second position P2.

[0057] In the following description of the hook member 70, the posture and relative positional relationships of each part shall be those of the state in which the decorative panel 30 is attached to the indoor unit body 29, that is, the state in which the decorative panel 30 is fixed to the indoor unit body 29 with bolts 80, unless otherwise specified.

[0058] Figure 10 is a perspective view showing the hook member 70. Figure 11 is a cross-sectional perspective view showing the temporary hanging structure 40. Figure 12 is a cross-sectional view showing part of the procedure for temporarily hanging the decorative panel 30 on the indoor unit body 29 using the temporary hanging structure 40. Figure 13 is a cross-sectional view showing another part of the procedure for temporarily hanging the decorative panel 30 on the indoor unit body 29 using the temporary hanging structure 40. Figure 14 is a cross-sectional view showing yet another part of the procedure for temporarily hanging the decorative panel 30 on the indoor unit body 29 using the temporary hanging structure 40. Figure 15 is a perspective view showing part of the procedure for attaching the hook member 70 to the holding part 60. Figures 11, 12, and 14 show the case where the hook member 70 is in the first position P1. Figure 13 shows the case where the hook member 70 is in the second position P2.

[0059] As shown in Figure 10, in this embodiment, the hook member 70 is a metal fitting made by bending a metal wire. The cross-sectional shape of the wire constituting the hook member 70 is, for example, circular. The hook member 70 has a main body portion 78 and a pair of shaft portions 72a and 72b. The main body portion 78 is the part that is hooked onto the first hook portion 50. The main body portion 78 has a pair of supported portions 71a and 71b and a second hook portion 73.

[0060] The second hook portion 73 is the part that hooks onto the first hook portion 50 from above. In this embodiment, the second hook portion 73 extends in the front-rear direction X. In this embodiment, the second hook portion 73 is the upper end of the hook member 70.

[0061] The pair of supported parts 71a and 71b are arranged opposite each other with a gap in the front-rear direction X. Supported part 71a is located in front of (+X direction) supported part 71b. The pair of supported parts 71a and 71b connect both ends of the second hook part 73 in the front-rear direction X to the pair of shaft parts 72a and 72b, respectively. Supported part 71a connects the front end (+X side) of the second hook part 73 to the rear end (-X side) of the shaft part 72a. Supported part 71b connects the rear end of the second hook part 73 to the front end of the shaft part 72b. In this embodiment, the pair of supported parts 71a and 71b are arranged symmetrically in the front-rear direction X.

[0062] The supported portion 71a has a first extended portion 74a and a second extended portion 75a. In this embodiment, the first extended portion 74a extends in a direction that is located inward in the left-right direction (+Y side) as it extends upward. As shown in Figure 6, a part of the first extended portion 74a is located between the support portion 65a and the second protrusion 67a in the left-right direction Y. The upper end of the first extended portion 74a is located above the support portion 65a. The first extended portion 74a is contactable with the support portion 65a. More specifically, the first extended portion 74a is contactable with the upper end of the support portion 65a from the left-right direction outward (-Y side). As a result, the support portion 65a is able to support the hook member 70 from the left-right direction inward. By the first extended portion 74a contacting the support portion 65a from the left-right direction outward, the supported portion 71a is supported by the support portion 65a.

[0063] As shown in Figure 10, the second extension portion 75a connects the upper end of the first extension portion 74a and the front (+X side) end of the second hook portion 73. The second extension portion 75a is bent outward (-Y side) in the left-right direction relative to the first extension portion 74a. The second extension portion 75a is positioned outward in the left-right direction as it extends upward. The second extension portion 75a has a base portion 76a and a projection portion 77a. The base portion 76a is the upper part of the second extension portion 75a. The base portion 76a extends downward and diagonally inward in the left-right direction from the front end of the second hook portion 73.

[0064] The protruding portion 77a is the lower part of the second extension portion 75a. The protruding portion 77a connects the lower end of the base portion 76a and the upper end of the first extension portion 74a. The protruding portion 77a protrudes in the front-rear direction X. In this embodiment, the protruding portion 77a protrudes inward (rear side, -X side) in the front-rear direction compared to the base portion 76a and the first extension portion 74a. In this embodiment, the protruding portion 77a extends in a U-shape that opens outward (front side, +X side) in the front-rear direction when viewed in the direction in which the first extension portion 74a extends.

[0065] The supported portion 71b has a first extension portion 74b and a second extension portion 75b. The first extension portion 74b extends parallel to the first extension portion 74a. As shown in Figure 6, a portion of the first extension portion 74b is located between the support portion 65b and the second protrusion portion 67b in the left-right direction Y. The upper end of the first extension portion 74b is located above the support portion 65b. The first extension portion 74b is contactable with the support portion 65b. More specifically, the first extension portion 74b is contactable with the upper end of the support portion 65b from the left-right outer side (-Y side). This allows the support portion 65b to support the hook member 70 from the left-right inner side (+Y side). By the first extension portion 74b contacting the support portion 65b from the left-right outer side, the supported portion 71b is supported by the support portion 65b.

[0066] As shown in Figure 10, the second extension 75b connects the upper end of the first extension 74b and the rear (-X side) end of the second hook portion 73. The second extension 75b is bent outward (-Y side) in the left-right direction relative to the first extension 74b. The second extension 75b is positioned outward in the left-right direction as it extends upward. The second extension 75b has a base portion 76b and a projection portion 77b. The base portion 76b is the upper part of the second extension 75b. The base portion 76b extends parallel to the base portion 76a.

[0067] The protruding portion 77b is the lower part of the second extension portion 75b. The protruding portion 77b connects the lower end of the base portion 76b and the upper end of the first extension portion 74b. The protruding portion 77b protrudes in the front-rear direction X. In this embodiment, the protruding portion 77b protrudes inward (front side, +X side) in the front-rear direction than the base portion 76b and the first extension portion 74b. In this embodiment, the protruding portion 77b extends in a U-shape that opens inward (rear side, -X side) in the front-rear direction when viewed in the direction in which the first extension portion 74b extends. The protruding portions 77a and 77b are arranged opposite each other in the front-rear direction X with a gap in between. The pair of protruding portions 77a and 77b formed on each of the pair of supported portions 71a and 71b protrude toward each other in the front-rear direction X. Furthermore, the protruding portion 77a and the protruding portion 77b may be in contact with each other in the front-rear direction X.

[0068] A pair of shaft portions 72a and 72b extend in the front-rear direction X. Shaft portion 72a is located forward (+X direction) of shaft portion 72b. Shaft portion 72a extends outward (front side, +X side) in the front-rear direction from the lower end of the supported portion 71a. Shaft portion 72b extends outward (rear side, -X side) in the front-rear direction from the lower end of the supported portion 71b. In this embodiment, the dimension of shaft portion 72b in the front-rear direction X is larger than the dimension of shaft portion 72a in the front-rear direction X. Note that the dimension of shaft portion 72b in the front-rear direction X may be the same as the dimension of shaft portion 72a in the front-rear direction X, or it may be smaller than the dimension of shaft portion 72a in the front-rear direction X.

[0069] As shown in Figure 6, the shaft portion 72a is passed through the housing hole 63a of the housing portion 62a in the front-rear direction X. The shaft portion 72b is passed through the housing hole 63b of the housing portion 62b in the front-rear direction X. The front-rear outer ends of the pair of shaft portions 72a and 72b protrude outward in the front-rear direction from the respective housing holes 63a and 63b, and are positioned opposite each other above the pair of support wall portions 68a and 68a. The left-right dimension Y of the pair of shaft portions 72a and 72b is smaller than the left-right dimension Y of the pair of housing holes 63a and 63b. The vertical dimension Z of the pair of shaft portions 72a and 72b is smaller than the vertical dimension Z of the pair of housing holes 63a and 63b.

[0070] The shaft portion 72a is movable relative to the housing portion 62a in the vertical direction Z within the range of movement within the housing hole 63a. The shaft portion 72b is movable relative to the housing portion 62b in the vertical direction Z within the range of movement within the housing hole 63b. More specifically, the shaft portion 72a is movable within the housing hole 63a between a first position P1 in contact with the upper edge of the housing hole 63a and a second position P2 in contact with the support wall portion 68a. The shaft portion 72b is movable within the housing hole 63b between a first position P1 in contact with the upper edge of the housing hole 63b and a second position P2 in contact with the support wall portion 68b. Thus, in this embodiment, the housing portions 62a and 62b house at least a portion of the shaft portions 72a and 72b so that they are movable vertically in the Z direction between the first position P1 and the second position P2. In Figure 6, the solid lines show the shaft portions 72a and 72b located at the second position P2, and the dashed lines show the shaft portions 72a and 72b located at the first position P1. Each shaft portion 72a and 72b is positioned at its highest relative to the holding portion 60 when it is in contact with the upper edge of each housing hole 63a and 63b. Each shaft portion 72a and 72b is positioned at its lowest relative to the holding portion 60 when it is in contact with each support wall portion 68a and 68b.

[0071] The hook member 70 is held by the holding part 60 so as to be rotatable around a pair of shafts 72a, 72b, at least in the first position P1. When the hook member 70 is in the first position P1, the rotation of the hook member 70 around the pair of shafts 72a, 72b causes the second hook part 73 to move in the left-right direction Y. Figure 11 shows the first state S1 in which the position of the hook member 70 in the vertical direction Z is the first position P1, and the second hook part 73 is located furthest inward in the left-right direction (+Y side). In the first state S1, the second hook part 73 is located further inward in the left-right direction than the first hook part 50. In other words, in the first state S1, the second hook part 73 is positioned differently from the first hook part 50 when viewed in the vertical direction Z. In this embodiment, in the first state S1, the second hook part 73 is positioned further inward in the left-right direction than the first hook part 50.

[0072] In this disclosure, "the second hook portion 73 is positioned differently from the first hook portion 50 when viewed in the vertical direction Z" means that, when viewed in the vertical direction Z, the entire second hook portion 73 does not overlap with the first hook portion 50.

[0073] In the first state S1, the pair of first extensions 74a and 74b are supported by the pair of support parts 65a and 65b from the inside in the left-right direction (+Y side). In other words, the pair of support parts 65a and 65b support the pair of supported parts 71a and 71b from the inside in the left-right direction when the position of the hook member 70 in the vertical direction Z is the first position P1, and the second hook part 73 is in a different position from the first hook part 50 when viewed in the vertical direction Z.

[0074] At the first position P1, the hook member 70 is rotatable from the first state S1 shown in Figure 11 in a direction that rotates clockwise around the shafts 72a and 72b when viewed from the rear side (-X side). At the first position P1, by rotating the hook member 70 in this direction from the first state S1 shown in Figure 11, the second hook portion 73 is movable to a position opposite to the first hook portion 50 above. Thus, in this embodiment, when the position of the hook member 70 in the vertical direction Z is the first position P1, the hook member 70 is movable between a position where the second hook portion 73 is opposite to the first hook portion 50 in the vertical direction Z and a position where the second hook portion 73 is positioned differently from the first hook portion 50 when viewed in the vertical direction Z.

[0075] In this embodiment, the hook member 70 is held by the holding part 60 so as to be rotatable around a pair of shafts 72a and 72b even in the second position P2. The angular range in which the hook member 70 can rotate around the shafts 72a and 72b in the second position P2 is smaller than the angular range in which the hook member 70 can rotate around the shafts 72a and 72b in the first position P1. In the second position P2 as well, the second hook part 73 can move in the left-right direction Y by rotating the hook member 70 around the shafts 72a and 72b. When the hook member 70 is in the second position P2, the second hook part 73 is positioned opposite the first hook part 50 in the vertical direction Z, regardless of the rotation angle of the hook member 70. In other words, when the position of the hook member 70 in the vertical direction Z is the second position P2, the second hook part 73 is positioned opposite the first hook part 50 in the vertical direction Z.

[0076] Figure 6 shows the second state S2, in which the position of the hook member 70 in the vertical Z direction is the second position P2, and the second hook portion 73 is located furthest inward in the left-right direction (+Y side). In the second state S2, the pair of first extension portions 74a and 74b are supported from the left-right inward by the pair of support portions 65a and 65b. In this embodiment, when the position of the hook member 70 in the vertical Z direction is the second position P2, the pair of support portions 65a and 65b support the supported portions 71a and 71b from the left-right inward, with the second hook portion 73 positioned opposite the first hook portion 50 in the vertical Z direction. The inclination of the first extension portions 74a and 74b with respect to the vertical Z direction in the second state S2 is smaller than the inclination of the first extension portions 74a and 74b with respect to the vertical Z direction in the first state S1.

[0077] The portion of the first extension 74a, 74b that contacts the upper end of the support portion 65a, 65b at the second position P2 is different from the portion of the first extension 74a, 74b that contacts the upper end of the support portion 65a, 65b at the first position P1. The portion of the first extension 74a, 74b that contacts the upper end of the support portion 65a, 65b at the second position P2 is a portion of the first extension 74a, 74b that is relatively higher than the portion of the first extension 74a, 74b that contacts the upper end of the support portion 65a, 65b at the first position P1.

[0078] In the second position P2, the shaft portions 72a and 72b are located lower than in the first position P1, so the central axis of the hook member 70 when it rotates is located lower than in the first position P1. This makes it possible to make the rotation angle at which the supported portions 71a and 71b contact the upper ends of the support portions 65a and 65b when the hook member 70 rotates different between the first position P1 and the second position P2.

[0079] More specifically, as shown in Figure 12, at the relatively high first position P1, the supported portions 71a, 71b will not contact the upper ends of the support portions 65a, 65b unless the hook member 70 rotates relatively large counterclockwise around the shaft portions 72a, 72b when viewed from the rear side (-X side). This is because, at the first position P1, the distance between the portion of the supported portions 71a, 71b that contacts the upper ends of the support portions 65a, 65b and the shaft portions 72a, 72b is relatively small. As a result, when the hook member 70 rotates, the distance at which the contacting portion approaches the support portions 65a, 65b is relatively small, and the rotation angle required for the supported portions 71a, 71b to contact the support portions 65a, 65b is relatively large. This allows the rotation range of the hook member 70 to be increased at the first position P1, and the second hook portion 73 can be moved to a position further inward (+Y side) in the left-right direction than the first hook portion 50.

[0080] On the other hand, as shown in Figure 13, at the relatively lower second position P2, the supported parts 71a and 71b come into contact with the upper ends of the support parts 65a and 65b when the hook member 70 rotates relatively small counterclockwise around the shafts 72a and 72b as viewed from the rear side (-X side). This is because, at the second position P2, the distance between the parts of the supported parts 71a and 71b that come into contact with the upper ends of the support parts 65a and 65b and the shafts 72a and 72b is relatively large. As a result, when the hook member 70 rotates, the distance at which the contacting parts approach the support parts 65a and 65b is relatively large, and the rotation angle required for the supported parts 71a and 71b to come into contact with the support parts 65a and 65b is relatively small. Therefore, at the second position P2, the rotation range of the hook member 70 can be made smaller compared to the first position P1, and the movement of the second hook portion 73 to a position further inward (+Y side) in the left-right direction than the first hook portion 50 can be suppressed.

[0081] The rotatable angular range of the hook member 70 decreases as the position of the hook member 70 in the vertical Z direction moves from the first position P1 to the second position P2. In other words, when the position of the hook member 70 in the vertical Z direction is between the first position P1 and the second position P2, the rotatable angular range of the hook member 70 is smaller than when the position of the hook member 70 in the vertical Z direction is at the first position P1, and larger than when the position of the hook member 70 in the vertical Z direction is at the second position P2.

[0082] When the hook member 70 rotates around the pair of shafts 72a and 72b between the first position P1 and the second position P2, the position in the vertical Z direction of the part of the hook member 70 other than the pair of shafts 72a and 72b changes slightly. In this embodiment, "the position in the vertical Z direction of the hook member 70 is at the first position P1" means that the pair of shafts 72a and 72b are in the uppermost position relative to the holding part 60. In other words, even if the hook member 70 rotates and the position in the vertical Z direction of the part of the hook member 70 other than the pair of shafts 72a and 72b changes when the pair of shafts 72a and 72b are in the uppermost position relative to the holding part 60, the position in the vertical Z direction of the hook member 70 remains at the first position P1. In this embodiment, "the position in the vertical Z direction of the hook member 70 is at the second position P2" means that the pair of shafts 72a and 72b are in the lowermost position relative to the holding part 60. In other words, when the pair of shaft portions 72a and 72b are in their lowest position relative to the holding portion 60, even if the hook member 70 rotates and the position in the vertical Z direction of the portion of the hook member 70 other than the pair of shaft portions 72a and 72b changes, the position in the vertical Z direction of the hook member 70 remains at the second position P2.

[0083] Next, the procedure for attaching the hook member 70 to the holding part 60 will be described. As shown in Figure 15, the worker inserts the pair of shafts 72a and 72b into the pair of housing holes 63a and 63b from below, passing each pair of shafts 72a and 72b through the pair of housing holes 63a and 63b in the front-to-back direction X. At this time, the hook member 70 is in a position where the main body 78 is positioned below the pair of shafts 72a and 72b. The worker rotates the hook member 70, with the pair of shafts 72a and 72b passed through the pair of housing holes 63a and 63b, around the pair of shafts 72a and 72b as shown by the arrows in Figure 15, so that, as shown in Figure 6, each of the pair of first extensions 74a and 74b is positioned between the pair of support parts 65a and 65b and the pair of second protrusions 67a and 67b in the left-to-right direction Y. As a result, the hook member 70 is held in place by the holding part 60.

[0084] When the hook member 70 is rotated from the state shown in Figure 15 to be held by the holding part 60, the pair of first extension parts 74a and 74b pass between the pair of support parts 65a and 65b. Here, the distance between the pair of support parts 65a and 65b in the front-rear direction X is smaller than the front-rear direction X dimension of the combined portion of the pair of first extension parts 74a and 74b. Therefore, when the pair of first extension parts 74a and 74b pass between the pair of support parts 65a and 65b, at least one of the pair of first extension parts 74a and 74b and the pair of support parts 65a and 65b undergoes elastic deformation. Furthermore, after the pair of first extensions 74a, 74b pass between the pair of support parts 65a, 65b, the elastically deformed portion returns to its original shape, and each of the pair of first extensions 74a, 74b is positioned in the left-right direction Y between the pair of support parts 65a, 65b and the pair of second protrusions 67a, 67b.

[0085] Next, the procedure for installing the indoor unit 20 in the ceiling C will be described. First, the worker inserts the indoor unit body 29 into the ceiling cavity CA through the hole CBa in the ceiling panel CB and fixes the indoor unit body 29 to the ceiling slab (not shown) with suspension bolts HB. Next, as shown in Figure 4, the worker grasps the decorative panel 30, which does not have the grille 32 attached, with both hands and brings the decorative panel 30 closer to the indoor unit body 29 from below the hole CBa. At this time, the worker grasps the left side (+Y side) of the frame-shaped decorative panel body 31 with the left hand HL and the right side (-Y side) of the frame-shaped decorative panel body 31 with the right hand HR.

[0086] The worker places the thumbs TH of each hand inside the frame-shaped decorative panel body 31. As shown in Figure 11, the worker passes the thumbs TH of each hand between the pair of first extension portions 74a, 74b of the hook member 70 of each temporary hanging structure 40, and inserts them between the pair of protrusions 77a, 77b and the first convex portion 66 of the holding portion 60. The worker hooks the inserted thumbs TH onto the pair of protrusions 77a, 77b from the outside in the left-right direction, pushing the hook member 70 up to the first position P1 with the thumbs TH, and simultaneously rotating the hook member 70 inward in the left-right direction to set the state of the hook member 70 to the first state S1.

[0087] Before the worker inserts their thumb TH between the pair of protrusions 77a, 77b and the first protrusion 66 of the holding part 60, the hook member 70 is lowered by gravity, resulting in the second state S2 described above. In this embodiment, in the second state S2, the gap between the pair of protrusions 77a, 77b and the first protrusion 66 of the holding part 60 is smaller than the thickness of the worker's thumb TH. Therefore, simply inserting the thumb TH between the pair of protrusions 77a, 77b and the first protrusion 66 allows the hook member 70 to be moved upward, easily pushing the hook member 70 up to the first position P1.

[0088] With the thumb TH maintaining the hook member 70 in the first state S1, the worker brings the decorative panel 30 closer to the indoor unit body 29 to a position where it can be temporarily hung. The position where the decorative panel 30 can be temporarily hung is a position above the vertical Z position of the decorative panel 30 when it is temporarily hung on the indoor unit body 29, and as shown in Figures 11 and 12, it is a position where the second hook portion 73 of the hook member 70 in the first state S1 is above the first hook portion 50. The state in which the decorative panel 30 is temporarily hung on the indoor unit body 29 is the state shown in Figure 14. In this embodiment, when the decorative panel 30 is brought closer to the indoor unit body 29 to a position where it can be temporarily hung, at least a part of it is inserted into the hole portion CBa.

[0089] In Figures 11 and 12, the decorative panel 30 is shown in a position where it will be attached to the indoor unit body 29. However, as long as the decorative panel 30 can be temporarily attached, the position in which it is brought close to the indoor unit body 29 may be lower than the position where it will be attached to the indoor unit body 29. When the decorative panel 30 is in a position where it can be temporarily attached to the indoor unit body 29 and is located lower than the position where it will be attached to the indoor unit body 29, a portion of the decorative panel 30 will protrude below the hole CBa. In this case, the vertical Z dimension of the portion of the decorative panel 30 that protrudes below the hole CBa is smaller than the vertical Z dimension of the portion of the decorative panel 30 that protrudes below the hole CBa in the temporary attachment state shown in Figure 14. When the decorative panel 30 is in a position where it will be attached to the indoor unit body 29, the entire decorative panel 30 is inserted into the hole CBa.

[0090] The following description will explain the case where the decorative panel 30 is lifted to the position where it can be attached to the indoor unit body 29, i.e., the position shown in Figures 11 and 12, while the hook member 70 is maintained in the first state S1 by the thumb TH.

[0091] Next, as shown in Figure 13, the worker pulls their thumb TH downward from the inside of the hook member 70. As a result, the hook member 70 moves downward due to its own weight, and its position in the vertical direction Z becomes the second position P2. At this time, as described above, the range of angles in which the hook member 70 can rotate at the second position P2 is smaller than that at the first position P1. Therefore, as the hook member 70 moves downward due to its own weight, the second hook portion 73 rotates around the pair of shaft portions 72a, 72b in a direction that moves outward in the left-right direction. As a result, the hook member 70 enters the second state S2, and the second hook portion 73 is positioned above and opposite the first hook portion 50. When the decorative panel 30 is lifted to the position where it can be attached to the indoor unit body 29, the second hook portion 73 is positioned above and opposite the first hook portion 50 at a distance.

[0092] In this embodiment, when the hook member 70 is in the first state S1 shown in Figure 12, and the point where the first extension portion 74a, 74b and the upper end portion of the support portion 65a, 65b come into contact is defined as the fulcrum FP, the rotational moment generated in the hook member 70 around the fulcrum FP due to the weight of the hook member 70 is greater than the rotational moment that causes the second hook portion 73 to rotate in a direction that moves outward in the left-right direction. In other words, the rotational moment generated in the hook member 70 due to the weight of the portion of the hook member 70 located outward in the left-right direction from the fulcrum FP is greater than the rotational moment generated in the hook member 70 due to the weight of the portion of the hook member 70 located inward in the left-right direction from the fulcrum FP. Therefore, when the thumb TH is pulled out and support from the thumb TH is lost, the hook member 70 can be easily moved downward while rotating due to its own weight in a direction that causes the second hook portion 73 to move outward in the left-right direction.

[0093] Next, the worker releases both hands from the decorative panel 30. As a result, the decorative panel 30 moves downward due to its own weight, and as shown in Figure 14, the second hook portion 73 hooks onto the first hook portion 50 from above. This temporarily suspends the decorative panel 30 from the indoor unit body 29. At this time, the hook member 70 moves upward relative to the decorative panel 30, and the position in the vertical direction Z is the first position P1, and the second hook portion 73 is hooked onto the first hook portion 50 from above, resulting in a third state S3. In the third state S3, the weight of the decorative panel 30 presses the second hook portion 73 against the first hook portion 50 from above, which prevents the hook member 70 from rotating around the pair of shaft portions 72a, 72b. This prevents the second hook portion 73 from coming off the first hook portion 50.

[0094] When the decorative panel 30 is temporarily attached to the indoor unit body 29, the lower end of the decorative panel 30 protrudes downward from the hole CBa. In other words, when the decorative panel 30 is temporarily attached to the indoor unit body 29, the lower surface of the decorative panel 30 is located below the ceiling surface CBs, which is the lower surface of the ceiling board CB. In this embodiment, when the decorative panel 30 is temporarily attached to the indoor unit body 29, the upper end of the decorative panel 30 is inserted into the hole CBa.

[0095] Furthermore, when temporarily attaching the decorative panel 30 to the indoor unit body 29, if the decorative panel 30 is located below the position where it will be attached to the indoor unit body 29 when the thumb TH is withdrawn and the hook member 70 is moved downward by its own weight, the second hook portion 73 will come into contact with the first hook portion 50 from above as the hook member 70 rotates and moves downward by its own weight. Therefore, it is possible that the hook member 70 will not move to the second position P2. In this case, the vertical Z position of the hook member 70 will be between the first position P1 and the second position P2, with the shaft portions 72a and 72b being located below the upper edges of the housing holes 63a and 63b and above the support wall portions 68a and 68b. Even in this case, the hook member 70 can rotate while moving downward from the first position P1, allowing the second hook portion 73 to face the first hook portion 50 above. As a result, when the worker releases their grip on the decorative panel 30, the second hook portion 73 can be hooked onto the first hook portion 50 from above, allowing the decorative panel 30 to be temporarily attached to the indoor unit body 29.

[0096] After temporarily attaching the decorative panel 30 to the indoor unit body 29 using the temporary attachment structure 40, the worker removes or opens the cover 33, passes each bolt 80 through holes (not shown) formed in the decorative panel body 31 from below, and tightens the bolts 80 into the indoor unit body 29. As each bolt 80 is tightened into the indoor unit body 29, the decorative panel 30 moves upward and closer to the indoor unit body 29. By tightening each bolt 80 all the way, the decorative panel 30 is attached to the indoor unit body 29. With the decorative panel 30 attached to the indoor unit body 29, the hook member 70 is in the second position P2 in the vertical direction Z, and the second hook portion 73 is positioned upward and opposite to the first hook portion 50, similar to the state shown in Figure 13.

[0097] After tightening each bolt 80 all the way, the worker covers the heads of each bolt 80 by attaching or closing the cover 33. Next, the worker attaches the grille 32 to the decorative panel body 31. With these steps completed, the indoor unit 20 can be installed on the ceiling C.

[0098] According to this embodiment, the hook member 70 comprises a first hook portion 50 provided on the indoor unit body 29, a second hook portion 73 that hooks onto the first hook portion 50 from above, and a holding portion 60 provided on the decorative panel 30 for holding the hook member 70. The hook member 70 is held by the holding portion 60 so as to be movable in the vertical direction Z between a first position P1 and a second position P2 which is lower than the first position P1. When the position of the hook member 70 in the vertical direction Z is the second position P2, the second hook portion 73 is positioned opposite the first hook portion 50 in the vertical direction Z. When the position of the hook member 70 in the vertical direction Z is the first position P1, the hook member 70 is movable between a position where the second hook portion 73 is opposite the first hook portion 50 in the vertical direction Z and a position where the second hook portion 73 is positioned differently from the first hook portion 50 when viewed in the vertical direction Z.

[0099] Therefore, as described above, the thumb TH of the hand gripping the decorative panel 30 can push the hook member 70 upward to the first position P1, and at the first position P1, the hook member 70 can be moved to a position where the second hook portion 73 is positioned differently from the first hook portion 50 when viewed in the vertical direction Z. This allows the decorative panel 30 to be brought closer to the indoor unit body 29 from below while the thumb TH of the hand gripping the decorative panel 30 positions the second hook portion 73 so that it does not come into contact with the first hook portion 50 in the vertical direction Z. Thus, when lifting the decorative panel 30 and moving it to a position where it can be temporarily hung on the indoor unit body 29, it is possible to prevent the second hook portion 73 from coming into contact with the first hook portion 50 from below, and the second hook portion 73 can be moved above the first hook portion 50 as shown in Figure 12. Furthermore, in the state shown in Figure 12, by pulling the thumb TH downward as described above and stopping the thumb TH from pushing up the hook member 70, the hook member 70 can be moved downward by its own weight and easily moved to the second position P2. In the second position P2, the second hook portion 73 is positioned opposite the first hook portion 50 in the vertical direction Z. Therefore, when the thumb TH is pulled out in the state shown in Figure 12, the second hook portion 73 is positioned above the first hook portion 50, as shown in Figure 13. When the hand gripping the decorative panel 30 is released in the state shown in Figure 13, the second hook portion 73 catches on the first hook portion 50 from above, and the decorative panel 30 can be temporarily hung on the indoor unit body 29 by the temporary hanging structure 40. As described above, the worker can easily temporarily hang the decorative panel 30 on the indoor unit body 29 simply by moving the thumb TH while gripping the decorative panel 30 with both hands and bringing it close to the indoor unit body 29. Therefore, the work efficiency of temporarily attaching the decorative panel 30 to the indoor unit body 29 can be improved. As a result, a worker can easily attach the decorative panel 30 to the indoor unit body 29 by themselves.

[0100] Furthermore, even if the thumb TH is withdrawn, there is a risk that the hook member 70 may remain held in the first position P1 due to frictional force between the hook member 70 and the holding part 60. However, even in that case, by applying force to the hook member 70, such as by lightly flicking it with the thumb TH, the hook member 70 can be easily moved to the second position P2 by its own weight.

[0101] Furthermore, when the decorative panel 30 is temporarily attached to the indoor unit body 29 by the temporary attachment structure 40, as described above, the position of the hook member 70 in the vertical Z direction is the first position P1. At the first position P1, the hook member 70 is movable so that the second hook portion 73 is opposite the first hook portion 50 in the vertical Z direction, allowing the second hook portion 73 to be suitably hooked onto the first hook portion 50. Also, when the second hook portion 73 is hooked onto the first hook portion 50, the weight of the decorative panel 30 presses the second hook portion 73 against the first hook portion 50 from above, thus preventing the second hook portion 73 from coming off the first hook portion 50, as described above. This allows the decorative panel 30 to be stably temporarily attached to the indoor unit body 29.

[0102] Furthermore, after the decorative panel 30 is fixed to the indoor unit body 29 with bolts 80, the engagement between the first hook portion 50 and the second hook portion 73 is released, causing the hook member 70 to lower due to its own weight, and the vertical Z position of the hook member 70 becomes the second position P2. Therefore, when the decorative panel 30 is attached to the indoor unit body 29, the second hook portion 73 is positioned above and opposite the first hook portion 50. As a result, even if the decorative panel 30 is released from being fixed by the bolts 80 and moves downward, the second hook portion 73 will catch on the first hook portion 50 from above, preventing the decorative panel 30 from falling into the room. Moreover, since the temporary hanging structure 40 prevents the decorative panel 30 from falling, there is no need to provide a separate member to prevent the decorative panel 30 from falling.

[0103] Furthermore, according to this embodiment, the holding portion 60 has support portions 65a and 65b that can support the hook member 70 from the first side in a first direction intersecting the vertical direction Z, i.e., from the inside in the left-right direction. The hook member 70 has supported portions 71a and 71b that are supported by the support portions 65a and 65b. The support portions 65a and 65b support the supported portions 71a and 71b from the inside in the left-right direction when the position of the hook member 70 in the vertical direction Z is the first position P1 and the second hook portion 73 is in a different position from the first hook portion 50 when viewed in the vertical direction Z, and support the supported portions 71a and 71b from the inside in the left-right direction when the position of the hook member 70 in the vertical direction Z is the second position P2 and the second hook portion 73 is positioned opposite the first hook portion 50 in the vertical direction Z.

[0104] Therefore, when the hook member 70 is pushed up with the thumb TH to the first position P1, the supported parts 71a and 71b are supported by the support parts 65a and 65b, allowing the second hook part 73 of the hook member 70 to be easily and stably held in a position different from the first hook part 50 when viewed in the vertical direction Z. This makes it easy and suitable to prevent the second hook part 73 from contacting the first hook part 50 from below when the decorative panel 30 is brought close to the indoor unit body 29, and allows the decorative panel 30 to be easily brought close to the indoor unit body 29 to a position where it can be temporarily hung. Furthermore, at the second position P2, the second hook part 73 can be stably positioned opposite the first hook part 50 in the vertical direction Z.

[0105] Furthermore, according to this embodiment, the hook member 70 has shaft portions 72a and 72b that intersect the vertical direction Z and are perpendicular to the first direction, i.e., the front-rear direction X. The holding portion 60 has housing portions 62a and 62b that house at least a part of the shaft portions 72a and 72b so that they can move in the vertical direction Z between a first position P1 and a second position P2. At least at the first position P1, the hook member 70 is held by the holding portion 60 so as to be rotatable around the shaft portions 72a and 72b. Therefore, by rotating the hook member 70 around the shaft portions 72a and 72b at the first position P1, the position of the second hook portion 73 can be easily moved.

[0106] Furthermore, according to this embodiment, the supported portions 71a and 71b have first extended portions 74a and 74b that can contact the support portions 65a and 65b. The first extended portions 74a and 74b extend in a direction that is located on the first side, i.e., inward in the left-right direction, as they extend upward. Therefore, when the position of the hook member 70 in the vertical direction Z changes, the angle of the first extended portions 74a and 74b that contact the support portions 65a and 65b with respect to the vertical direction Z can be changed. As a result, as described above, the rotatable angular range of the hook member 70 can be suitably made different between the first position P1 and the second position P2. Therefore, at the first position P1, the hook member 70 can be rotated relatively large to position the second hook portion 73 inward in the left-right direction compared to the first hook portion 50, and at the second position P2, the range of rotational angle of the hook member 70 can be reduced to prevent the second hook portion 73 from being in a position that does not face the first hook portion 50 in the vertical direction Z.

[0107] Furthermore, according to this embodiment, the supported portions 71a, 71b have second extended portions 75a, 75b that connect the first extended portions 74a, 74b and the second hook portion 73. The second extended portions 75a, 75b are bent outward in the left-right direction, i.e., to the second side of the first extended portions 74a, 74b. Therefore, compared to the case where the second extended portions 75a, 75b extend in the same direction as the first extended portions 74a, 74b, the position of the second hook portion 73 in the left-right direction Y can be made closer to the first hook portion 50. As a result, even when the second hook portion 73 is moved to a different position from the first hook portion 50 when viewed in the vertical direction Z while the hook member 70 is in the first position P1, it is possible to prevent the second hook portion 73 from moving too far away from the first hook portion 50. This allows the second hook portion 73 to be easily and suitably moved to a position opposite the first hook portion 50 when the thumb TH is withdrawn and the hook member 70 is rotated. Furthermore, it prevents the center of gravity of the hook member 70 from moving too far inward in the left-right direction, making it easier to move the hook member 70 downward while rotating under its own weight from the first position P1. As a result, when the thumb TH is withdrawn, the hook member 70 can be suitably and automatically moved from the first position P1 to the second position P2.

[0108] Furthermore, according to this embodiment, the supported portions 71a and 71b have protruding portions 77a and 77b that protrude in a second direction, i.e., the front-rear direction X. Therefore, as described above, the thumb TH can be hooked onto the protruding portions 77a and 77b, making it easier to rotate the hook member 70 with the thumb TH.

[0109] Furthermore, according to this embodiment, the second hook portion 73 extends in a second direction, i.e., the front-rear direction X. The shaft portions 72a, 72b and the supported portions 71a, 71b are provided in pairs, spaced apart in the front-rear direction X. The pair of supported portions 71a, 71b connect the front-rear direction X ends of the second hook portion 73 to the pair of shaft portions 72a, 72b, respectively. The protrusions 77a, 77b are formed on each of the pair of supported portions 71a, 71b. The pair of protrusions 77a, 77b formed on each of the pair of supported portions 71a, 71b protrude toward the other protrusion 77a, 77b in the front-rear direction X. Therefore, it is easier to hook the thumb TH onto the pair of protrusions 77a, 77b, and it is easier to rotate the hook member 70 with the thumb TH.

[0110] Furthermore, if the hook member 70 has the above configuration, when the second hook portion 73 is hooked onto the first hook portion 50, the weight of the decorative panel 30 will pull the second hook portion 73 relatively upward, and there is a risk that the hook member 70 will deform so that the pair of supported portions 71a and 71b move closer to each other in the front-rear direction X. If the pair of supported portions 71a and 71b deform in a direction that moves closer to each other, the pair of shaft portions 72a and 72b will also move closer to each other, and there is a risk that each shaft portion 72a and 72b will come out of the respective housing portions 62a and 62b. In contrast, by making the pair of protruding portions 77a and 77b protrude toward each other, when the pair of supported portions 71a and 71b deform so that they move closer to each other in the front-rear direction X, the pair of protruding portions 77a and 77b will come into contact with each other, and the deformation of the pair of supported portions 71a and 71b toward each other can be suppressed. Therefore, it is possible to prevent each shaft portion 72a, 72b from coming out of each housing portion 62a, 62b, and to effectively prevent the hook member 70 from coming off the holding portion 60.

[0111] Furthermore, according to this embodiment, the temporary mounting structure 40 is provided in pairs with a gap in the direction of intersection with the vertical direction Z, i.e., in the left-right direction Y. Therefore, the decorative panel 30 can be stably temporarily mounted on the indoor unit body 29 by the pair of temporary mounting structures 40.

[0112] Furthermore, according to this embodiment, the pair of temporary mounting structures 40 are positioned offset from the center of the decorative panel 30 in a direction that intersects with the vertical direction Z and is perpendicular to the intersecting direction, i.e., in the front-to-back direction X. Therefore, when the decorative panel 30 is inverted in the front-to-back direction X, it is not possible to temporarily mount the decorative panel 30 to the indoor unit body 29. This prevents the decorative panel 30 from being installed in the wrong orientation relative to the indoor unit body 29.

[0113] Furthermore, according to this embodiment, the decorative panel 30 has a frame-shaped decorative panel body 31 when viewed in the vertical direction Z. The holding portion 60 is formed on the inner edge of the decorative panel body 31. Therefore, the hook member 70 can be held on the inner edge of the decorative panel body 31, and the hook member 70 can be easily operated by the thumb TH of the hand gripping the decorative panel body 31.

[0114] For example, if the decorative panel 30 is larger than the hole CBa, and the outer edge of the decorative panel 30 is positioned outside the hole CBa and facing the ceiling surface CBs, which is the lower surface of the ceiling board CB, then even if the hook members 70 are fixed immovably to the holding part 60, it may be possible to sequentially hook the second hook portion 73 of each hook member 70 onto each first hook portion 50 by moving the decorative panel 30 in the left-right direction Y.

[0115] In contrast, according to this embodiment, the decorative panel 30 is fitted into a hole CBa formed in the ceiling C. Therefore, when the decorative panel 30 is brought close from below to a position where it can be temporarily hung on the indoor unit body 29, at least a part of the decorative panel 30 is inserted into the hole CBa, making it almost impossible to move the decorative panel 30 in the left-right direction Y. In this case, it is not possible to use a temporary hanging method that involves moving the decorative panel 30 in the left-right direction Y to hook each second hook portion 73 onto each first hook portion 50. In contrast, in this embodiment, as described above, without moving the decorative panel 30 in the left-right direction Y, the state of the hook member 70 can be easily changed by simply operating the thumb TH of the hand gripping the decorative panel 30, and each second hook portion 73 can be hooked onto each first hook portion 50. Therefore, the effect of improving the workability of temporarily hanging the decorative panel 30 on the indoor unit body 29 by the temporary hanging structure 40 of this embodiment is particularly useful in indoor units 20 in which the decorative panel 30 is fitted into a hole CBa in the ceiling C.

[0116] While embodiments of this disclosure have been described above, this disclosure is not limited to the configurations of the embodiments described above, and the following configurations and methods may also be adopted.

[0117] The hook member is held by the holding part so as to be movable vertically between a first position and a second position, and when in the first position, the second hook portion may be held by the holding part in any way as long as it is movable between a position where the second hook portion is vertically opposite to the first hook portion and a position where the second hook portion is positioned differently from the first hook portion when viewed vertically. When in the first position, the hook member may be movable between a position where the second hook portion is vertically opposite to the first hook portion and a position where the second hook portion is positioned differently from the first hook portion when viewed vertically, by sliding in a direction perpendicular to the vertical direction. The hook member may have any shape as long as it has a second hook portion. The first hook portion may have any shape as long as it is possible to hook the second hook portion. If the supported portion of the hook member has a protrusion, only one protrusion may be provided on the hook member. A protrusion may not be provided.

[0118] The procedure for temporarily attaching the decorative panel to the indoor unit body using the temporary attachment structure of this disclosure is not particularly limited, as long as the decorative panel can be temporarily attached to the indoor unit body. For example, in the embodiment described above, the hook member was operated with the thumb, but this is not the only option. Depending on the location where the temporary attachment structure is provided, the hook member may be operated with fingers other than the thumb.

[0119] The number of temporary mounting structures provided on the indoor unit is not particularly limited, as long as there is one or more. The temporary mounting structures may be provided at any location on the indoor unit. If a pair of temporary mounting structures are provided spaced apart in an intersecting direction that intersects the vertical direction, the pair of temporary mounting structures may be located at the center of the decorative panel in a direction that intersects the vertical direction and is perpendicular to the intersecting direction.

[0120] The decorative panel does not necessarily have to be fitted into the hole formed in the ceiling. For example, the decorative panel may be larger than the hole formed in the ceiling, and its outer edge may be positioned outside the hole, facing the underside of the ceiling panel.

[0121] The relative positions and dimensions of the parts described in each of the embodiments described above are merely examples, and the relative positions and dimensions of the parts in this disclosure are not particularly limited, as long as they are within the scope of the technical concept of this disclosure. The configurations and methods described herein can be combined as appropriate, as long as they are not inconsistent with each other. [Explanation of symbols]

[0122] 10…Outdoor unit, 20…Indoor unit, 29…Indoor unit body, 30…Decorative panel, 31…Decorative panel body, 40…Temporary hanging structure, 50…First hook part, 60…Holding part, 62a, 62b…Housing part, 65a, 65b…Support part, 70…Hook member, 71a, 71b…Supported part, 72a, 72b…Shaft part, 73…Second hook part, 74a, 74b…First extension part, 75a, 75b…Second extension part, 77a, 77b…Protruding part, 100…Air conditioner, C…Ceiling, CBa…Hole part, P1…First position, P2…Second position, X…Front-back direction (second direction), Y…Left-right direction (first direction, intersecting direction), Z…Vertical direction

Claims

1. A temporary support structure is provided for the indoor unit of an air conditioner, which comprises an indoor unit body fixed to the ceiling and a decorative panel attached to the indoor unit body, for temporarily supporting the decorative panel on the indoor unit body when performing the work of attaching the decorative panel to the indoor unit body fixed to the ceiling from below, The first hook portion provided on the indoor unit body, A hook member having a second hook portion that can be hooked onto the first hook portion from above, The decorative panel is provided with a holding portion for holding the hook member, Equipped with, The hook member has a supported portion and is held by the holding portion so as to be movable in the vertical direction between a first position and a second position lower than the first position. When the vertical position of the hook member is the second position, the second hook portion is positioned vertically opposite to the first hook portion. When the vertical position of the hook member is the first position, the hook member is movable between a position in which the second hook portion faces the first hook portion in the vertical direction and a position in which the second hook portion is positioned differently from the first hook portion when viewed in the vertical direction. The holding portion has a support portion that can support the hook member from a first side in a first direction intersecting the vertical direction, The supported portion has a first extended portion that can contact the support portion, and is supported by the support portion. The aforementioned support portion is When the vertical position of the hook member is the first position, and the second hook portion is in a different position from the first hook portion when viewed vertically, the supported portion is supported from the first side. When the vertical position of the hook member is the second position, the supported portion is supported from the first side with the second hook portion positioned vertically opposite to the first hook portion. The first extension is a temporary support structure that extends in a direction that is positioned towards the first side as it goes upward.

2. The hook member has a shaft portion that extends in a second direction intersecting the vertical direction and perpendicular to the first direction, The holding portion has a housing portion that houses at least a part of the shaft portion so that it can move vertically between the first position and the second position. The temporary hanging structure according to claim 1, wherein the hook member is held by the holding portion so as to be rotatable around the shaft portion at least in the first position.

3. The temporary support structure according to claim 2, wherein the supported portion has a protruding portion that protrudes in the second direction.

4. The second hook portion extends in the second direction, The shaft portion and the supported portion are provided in pairs, spaced apart in the second direction. The pair of supported portions connect the two ends of the second hook portion in the second direction to the pair of shaft portions, The aforementioned protrusions are formed on each of the pair of supported portions, The temporary support structure according to claim 3, wherein the pair of protrusions formed on each of the pair of supported portions protrude toward the other protrusion in the second direction.

5. The supported portion has a second extended portion that connects the first extended portion and the second hook portion. The temporary hanging structure according to claim 1, wherein the second extended portion is bent to the second side in the first direction relative to the first extended portion.

6. It is an indoor unit of an air conditioner, The indoor unit is fixed to the ceiling, A decorative panel located below the indoor unit body and attached to the indoor unit body, A temporary hanging structure according to any one of claims 1 to 5, An indoor unit equipped with the following features.

7. The indoor unit according to claim 6, wherein the temporary mounting structure is provided in pairs at intervals in an intersecting direction that intersects the vertical direction.

8. The indoor unit according to claim 7, wherein the pair of temporary mounting structures are provided at a position offset from the center of the decorative panel in a direction that intersects with the vertical direction and is perpendicular to the direction of the intersection.

9. The aforementioned decorative panel has a frame-shaped decorative panel body when viewed in the vertical direction. The indoor unit according to claim 6, wherein the retaining portion is formed on the inner edge of the decorative panel body.

10. The decorative panel is fitted into a hole formed in the ceiling, as described in claim 6.

11. The indoor unit according to claim 6, Outdoor unit and An air conditioner equipped with [a specific feature].

Images