WO2022254476A1

WO2022254476A1 - Hanging tool and mounting structure

Info

Publication number: WO2022254476A1
Application number: PCT/JP2021/020587
Authority: WO
Inventors: 啓伸末▲廣▼; 洋介 ▲高▼野; 隆弘小松; 尚也松永; 誠栗原
Original assignee: 三菱電機株式会社
Priority date: 2021-05-31
Filing date: 2021-05-31
Publication date: 2022-12-08
Also published as: JPWO2022254476A1; JP7550977B2

Abstract

A hanging tool according to one aspect of the present disclosure is for fixing an indoor unit to a ceiling and comprises a hanging tool body fixed to a frame member that is fixed to the ceiling and has a frame shape in a plan view. The hanging tool body has a first bolt hole into which a fixing bolt for fixing the frame member and the hanging tool body is inserted, and a second bolt hole into which a hanging bolt for fixing the indoor unit and the hanging tool body is inserted. The portion of the hanging tool body in which the second bolt hole is provided is located inside the frame member in a plan view when the hanging tool body is fixed to the frame member.

Description

Hanging tool and mounting structure

The present disclosure relates to slings and mounting structures.

An indoor unit that is embedded in the ceiling and attached to the ceiling is known. For example, Patent Literature 1 describes a structure in which an indoor unit is attached by suspension bolts to a ceiling suspension member in which four rod-shaped angle members are connected in the shape of a square frame.

JP 2017-146063 A

In the above structure, the ceiling hanging member was placed above the indoor unit. Therefore, the total vertical dimension of the ceiling suspension member and the indoor unit tends to be large. As a result, when the height of the space above the ceiling where the indoor unit is installed is relatively small, the indoor unit body may protrude into the room from the space above the ceiling. Therefore, problems may occur, such as the need to attach a cover to cover the protruding portion of the indoor unit main body, or the need to change the installation location of the indoor unit.

The present disclosure has been made to solve the above-described problems, and provides a hanging fixture and a mounting structure that enable the indoor unit to be mounted on the ceiling while suppressing the indoor unit main body from protruding from the ceiling space. for the purpose.

One aspect of the hanger according to the present disclosure is a hanger for fixing an indoor unit to a ceiling, comprising a hanger main body fixed to a frame member fixed to the ceiling and having a frame shape in a plan view. , the sling main body includes a first bolt hole through which a fixing bolt for fixing the frame member and the sling main body is passed, and a hole for fixing the indoor unit and the sling main body. and a second bolt hole through which a suspension bolt is passed, and the portion of the slinger main body provided with the second bolt hole is fixed to the frame member in a state where the slinger main body is fixed to the frame member. , located inside the frame member in plan view.

One aspect of the mounting structure according to the present disclosure is a mounting structure for mounting an indoor unit on a ceiling, comprising a frame member fixed to the ceiling and having a frame shape in a plan view, and the above-mentioned frame member fixed to the frame member. a fixing bolt that passes through the first bolt hole and fixes the frame member and the sling main body; and a fixing bolt that passes through the second bolt hole and connects the indoor unit and the sling main body. and a hanging bolt for fixing.

According to the present disclosure, the indoor unit can be attached to the ceiling while preventing the indoor unit body from protruding from the ceiling.

It is a perspective view which shows the indoor unit attached by the attachment structure and attachment structure in embodiment. It is the figure which looked at the mounting structure and indoor unit in embodiment in the 1st horizontal direction. It is the figure which looked at the mounting structure and indoor unit in embodiment from upper direction. FIG. 3 is a partial enlarged view of FIG. 2, showing a part of the indoor unit attached by the attachment structure in the embodiment. It is a perspective view which shows the attachment structure in embodiment. FIG. 6 is a perspective view showing a part of the mounting structure in the embodiment, which is a partially enlarged view of FIG. 5; It is a perspective view which shows the hanging tool in embodiment. FIG. 3 is a partial enlarged view of FIG. 2, showing a part of the mounting structure and a part of the indoor unit in the embodiment, as viewed in the first horizontal direction; It is the figure which looked at a part of attachment structure in embodiment, and a part of indoor unit in the 2nd horizontal direction. It is a figure which shows a part of procedure which fixes a fixing bolt and a hanging bolt with respect to the hanging tool in embodiment. FIG. 2 is a view of a conventional mounting structure and an indoor unit mounted by the conventional mounting structure, viewed in a first horizontal direction;

Embodiments of the present disclosure will be described below 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 ideas of the present disclosure. In the drawings below, the scale and number of each structure may be different from the scale and number of the actual structure in order to make each configuration easier to understand.

In addition, the drawings show the X-axis, Y-axis, and Z-axis as appropriate. The X-axis indicates one of the horizontal directions. The Y-axis indicates the other horizontal direction. The Z-axis indicates the vertical direction. In the following description, the horizontal direction along the X-axis is called "first horizontal direction X", and the horizontal direction along the Y-axis is called "second horizontal direction Y". The first horizontal direction X, the second horizontal direction Y, and the vertical direction are directions orthogonal to each other. The side of the vertical direction to which the Z-axis arrow points (+Z side) is the upper side, and the side opposite to the side of the vertical direction to which the Z-axis arrow points (-Z side) is the lower side.

FIG. 1 is a perspective view showing a mounting structure 10 and an indoor unit 20 mounted by the mounting structure 10 according to the present embodiment. 2 is a view of the mounting structure 10 and the indoor unit 20 as viewed in the first horizontal direction X. FIG. FIG. 3 is a top view of the mounting structure 10 and the indoor unit 20. FIG. FIG. 4 is a view showing part of the indoor unit 20, and is a partially enlarged view of FIG.

It should be noted that the relative positional relationship of each part described below is the relative positional relationship of each part in the state where the indoor unit 20 is attached by the mounting structure 10, unless otherwise specified. In this specification, the term “planar view” means viewing an object from above in the vertical direction with the indoor unit 20 attached by the attachment structure 10 .

The indoor unit 20 shown in FIGS. 1 to 3 is an indoor unit of an air conditioner. As shown in FIGS. 1 and 2, the indoor unit 20 is attached to the ceiling C by the attachment structure 10. As shown in FIG. As shown in FIG. 2, the ceiling C is a double ceiling having a ceiling slab CS and ceiling panels CB spaced below the ceiling slab CS. The ceiling slab CS is a structure such as slabs and beams on the upper floor. The ceiling slab CS has a fixing surface CSa facing downward. The ceiling plate CB has a plate-like shape whose plate surface faces the vertical direction. The lower surface of the ceiling plate CB faces the room. In the present embodiment, the ceiling board CB is constructed by attaching a wallpaper CB2 such as vinyl cloth to the lower surface of a ceiling board body CB1 such as a gypsum board.

The space provided between the ceiling slab CS and the ceiling board CB in the vertical direction is hereinafter referred to as the ceiling space CA. The height of the ceiling space CA shown in FIG. 2 is a relatively small height H1. The height H1 of the ceiling space CA is the vertical distance between the fixing surface CSa of the ceiling slab CS and the upper surface of the ceiling plate CB.

The indoor unit 20 is a ceiling-embedded indoor unit that is embedded in the ceiling space CA. The indoor unit 20 includes an indoor unit body 21, a decorative panel 22, and fixtures 23. - 特許庁The indoor unit main body 21 has a substantially quadrangular prism shape that is flat in the vertical direction. The indoor unit main body 21 has a side surface 21x along the first horizontal direction X and a side surface 21y along the second horizontal direction Y. As shown in FIG. As shown in FIG. 3, the indoor unit main body 21 has a substantially square shape with chamfered corners in plan view. That is, the indoor unit main body 21 has a substantially octagonal shape in plan view. The indoor unit main body 21 has an inclined surface 21a on each square. The slanted surface 21a faces a direction that is slanted 45° with respect to both the first horizontal direction X and the second horizontal direction Y. As shown in FIG.

As shown in FIG. 2, the indoor unit body 21 is embedded in the ceiling space CA. A lower end portion of the indoor unit main body 21 is arranged in a through hole CBa provided in the ceiling plate CB. The through hole CBa penetrates the ceiling plate CB in the vertical direction. The through hole CBa has a square shape that is larger than the outer shape of the indoor unit main body 21 in plan view.

A decorative panel 22 is attached to the lower end of the indoor unit main body 21 . The decorative panel 22 has a square plate shape with a plate surface facing the vertical direction and having sides along the first horizontal direction X and the second horizontal direction Y. As shown in FIG. The decorative panel 22 is arranged indoors. The outer peripheral edge of the decorative panel 22 protrudes outward from the indoor unit main body 21 in plan view. The outer peripheral edge of the decorative panel 22 is in contact with the lower surface of the ceiling plate CB.

The fixture 23 is a metal fitting to which a suspension bolt 50, which will be described later, is fixed. The fixture 23 is fixed to the side surface of the indoor unit main body 21 . The fixture 23 is positioned in the ceiling space CA. As shown in FIG. 3, one fixture 23 is fixed to each of the four inclined surfaces 21a. As shown in FIG. 4, the fixture 23 has a base portion 23a fixed to the inclined surface 21a with a bolt, and a projecting portion 23b projecting from the upper end of the base portion 23a in a direction away from the inclined surface 21a. The projecting portion 23b has a plate-like shape with a plate surface facing the vertical direction. Although not shown, the projecting portion 23b has a through portion through which the suspension bolt 50 is vertically passed.

The mounting structure 10 is a mounting structure for mounting the indoor unit 20 on the ceiling C. FIG. 5 is a perspective view showing the mounting structure 10. FIG. FIG. 6 is a perspective view showing a part of the mounting structure 10, which is a partially enlarged view of FIG. As shown in FIGS. 5 and 6 , the mounting structure 10 includes a frame member 30 , a sling 40 , a sling bolt 50 and a fixing bolt 61 .

As shown in FIG. 5, the frame member 30 is a frame-shaped member in plan view. In this embodiment, the frame member 30 has a square frame shape. The frame member 30 has a pair of first support members 31 and a pair of second support members 32 . The pair of first support members 31 extends in the first horizontal direction X. As shown in FIG. The pair of first support members 31 are arranged in the second horizontal direction Y with a gap therebetween. The pair of second support members 32 extends in the second horizontal direction Y. As shown in FIG. The pair of second support members 32 are spaced apart in the first horizontal direction X. As shown in FIG. The pair of second support members 32 are positioned above the pair of first support members 31 . One end portion in the second horizontal direction Y of the pair of second support members 32 is fixed above both end portions in the first horizontal direction X of one first support member 31 . The other ends in the second horizontal direction Y of the pair of second support members 32 are fixed above the both ends in the first horizontal direction X of the other first support member 31 .

In the present embodiment, the first support member 31 and the second support member 32 are C-shaped channel steel having grooves that open downward. As shown in FIG. 6, the first support member 31 has a groove 31a extending in the first horizontal direction X. As shown in FIG. The second support member 32 has a groove 32a extending in the second horizontal direction Y. As shown in FIG. The

grooves

31a and 32a are open downward. As shown in FIG. 3, a long hole 31b elongated in the first horizontal direction X is provided in the upper wall portion of the first support member 31. As shown in FIG. A plurality of long holes 31b are provided along the first horizontal direction X. As shown in FIG. A long hole 32b elongated in the second horizontal direction Y is provided in the upper wall portion of the second support member 32 . A plurality of long holes 32b are provided along the second horizontal direction Y. As shown in FIG.

As shown in FIG. 2, the frame member 30 is fixed to the ceiling C. In this embodiment, the frame member 30 is fixed to the ceiling slab CS by bolts 60 extending in the vertical direction. Four bolts 60 are provided. Each bolt 60 fixes each corner of the square frame-shaped frame member 30 to the fixing surface CSa of the ceiling slab CS. At least part of the indoor unit 20 is inserted inside the frame member 30 . In this embodiment, the upper end portion of the indoor unit main body 21 is inserted inside the frame member 30 .

The hanging tool 40 is a hanging tool for fixing the indoor unit 20 to the ceiling C. In the present embodiment, the hanger 40 is a member made by subjecting a metal plate member to machining such as press working. As shown in FIG. 5 , the hanger 40 is fixed to the frame member 30 . More specifically, two hangers 40 are fixed to each of the pair of first support members 31 . That is, in this embodiment, a total of four hangers 40 are provided. The two hangers 40 provided on each first support member 31 are spaced apart in the first horizontal direction X. As shown in FIG. The hanger 40 fixed to one first support member 31 and the hanger 40 fixed to the other first support member 31 are fixed in the opposite direction to the second horizontal direction Y. As shown in FIG. Each hanger 40 has the same configuration except that the position and direction of fixing to the frame member 30 are different. In the description of the hanger 40 below, the hanger 40 fixed to the first support member 31 positioned on one side (+Y side) in the second horizontal direction Y will be described as a representative of the hangers 40 .

FIG. 7 is a perspective view showing the sling 40. FIG. As shown in FIG. 7 , the sling 40 has a sling body 41 and a pair of

flanges

42 and 43 . The hanger main body 41 has a plate-like shape whose plate surface faces the vertical direction. In the present embodiment, the sling main body 41 has a substantially triangular shape in plan view. As shown in FIG. 6, the hanger main body 41 is fixed to the lower side of the frame member 30 in the present embodiment. More specifically, the sling main body 41 is fixed to the lower side of the first support member 31 in the frame member 30 . The hanger main body 41 extends from the first support member 31 toward the inner side of the frame member 30, that is, toward the -Y side in FIG.

Hereinafter, the portion of the hanger main body 41 positioned below the first support member 31 is referred to as a fixed portion 41a, and the portion that protrudes inward of the frame member 30 from the first support member 31 is a projecting portion 41b. call. The fixed portion 41 a is fixed to the first support member 31 . The projecting portion 41b is positioned inside the frame member 30 in plan view.

As shown in FIG. 7, the sling main body 41 has a first bolt hole 44 and a second bolt hole 45 . The first bolt hole 44 and the second bolt hole 45 are circular holes penetrating through the hanger body 41 in the vertical direction. The first bolt hole 44 is provided in the fixed portion 41a. The second bolt hole 45 is provided at the tip of the projecting portion 41b. A plurality of first bolt holes 44 are provided. In the present embodiment, two first bolt holes 44 are provided at intervals in the longitudinal direction of the first support member 31 to which the hanger 40 is fixed, that is, in the first horizontal direction X. As shown in FIG. A fixing bolt 61 for fixing the frame member 30 and the hanger body 41 is passed through the first bolt hole 44 . In the present embodiment, only one second bolt hole 45 is provided in the sling main body 41 . A suspension bolt 50 for fixing the indoor unit 20 and the suspension fixture body 41 is passed through the second bolt hole 45 .

The width of the hanger main body 41 in plan view decreases from the portion where the first bolt hole 44 is provided toward the portion where the second bolt hole 45 is provided. The width of the hanger main body 41 in plan view is, for example, the dimension of the hanger main body 41 in the first horizontal direction X. As shown in FIG. One outer edge portion 41c of the outer edge portions in the first horizontal direction X of the hanger main body portion 41 extends in the second horizontal direction Y. As shown in FIG. The other outer edge portion 41d of the outer edge portions in the first horizontal direction X of the hanger main body portion 41 extends in a direction obliquely inclined in the first horizontal direction X with respect to the second horizontal direction Y. As shown in FIG.

As shown in FIG. 6 , the portion of the hanger main body 41 where the second bolt hole 45 is provided is located inside the frame member 30 in plan view when the hanger main body 41 is fixed to the frame member 30 . Located in The portion of the hanger main body 41 provided with the second bolt hole 45 is positioned so as to overlap with the portion of the fixture 23 of the indoor unit 20 provided with the through portion through which the hanger bolt 50 is passed in plan view. are placed.

As shown in FIG. 7, the pair of

flanges

42 and 43 protrude downward from the

outer edges

41c and 41d of the hanger main body 41. As shown in FIG. The flange portion 42 is provided on the outer edge portion 41c. The flange portion 43 is provided on the outer edge portion 41d. The pair of

flange portions

42 and 43 has a plate-like plate surface along the vertical direction. A pair of

flange parts

42 and 43 are arranged in the 1st horizontal direction X at intervals. The pair of

flange portions

42 and 43 sandwich the first bolt hole 44 in the first horizontal direction X. As shown in FIG.

The pair of

flange portions

42 and 43 extend along the

outer edge portions

41c and 41d of the hanger body portion 41, respectively. In the present embodiment, the pair of

flange portions

42 and 43 extend along the direction from the first bolt hole 44 toward the second bolt hole 45 . The flange portion 42 extends along the direction from one first bolt hole 44 located on one side (+X side) in the first horizontal direction X toward the second bolt hole 45 . The flange portion 42 extends in the second horizontal direction Y in the present embodiment. The flange portion 43 extends along the direction from one first bolt hole 44 located on the other side (−X side) of the first horizontal direction X toward the second bolt hole 45 . In the present embodiment, the flange portion 43 extends in a direction obliquely inclined in the first horizontal direction X with respect to the second horizontal direction Y. As shown in FIG. The flange portion 42 and the flange portion 43 approach each other in the first horizontal direction X as they approach the second bolt hole 45 .

The

flanges

42 and 43 are provided only on part of the

outer edges

41c and 41d of the hanger main body 41. Each of the

flanges

42 and 43 extends from the end of each of the

outer edges

41c and 41d closer to the first bolt hole 44 (+Y side) to the first bolt hole 44 and the second bolt of each of the

outer edges

41c and 41d. It extends to a portion positioned between the hole 45 and the second horizontal direction Y. As a result, the portion of the hanger main body 41 where the second bolt hole 45 is provided is provided at a position farther from the first bolt hole 44 than the pair of

flanges

42 and 43 . The flange portion 42 is not provided on a portion of the outer edge portion 41 c that is closer to the second bolt hole 45 . The flange portion 43 is not provided on a portion of the outer edge portion 41 d that is closer to the second bolt hole 45 .

The fixing bolt 61 is a bolt extending in the vertical direction. Two fixing bolts 61 are provided for each sling 40 . That is, eight fixing bolts 61 are provided in total. In each hanger 40, two fixing bolts 61 are vertically passed through the two first bolt holes 44, respectively. The fixing bolt 61 is a bolt for fixing the frame member 30 and the sling main body 41 . In this embodiment, the fixing bolt 61 fixes the first support member 31 and the sling main body 41 .

FIG. 8 is a view of a part of the mounting structure 10 and a part of the indoor unit 20 viewed in the first horizontal direction X, and is a partially enlarged view of FIG. 9 is a view of a part of the mounting structure 10 and a part of the indoor unit 20 viewed in the second horizontal direction Y. FIG. 10A and 10B are diagrams showing part of the procedure for fixing the fixing bolt 61 and the suspension bolt 50 to the sling 40. FIG.

As shown in FIG. 8, a cover member 33 is provided between the sling main body 41 fixed by the fixing bolt 61 and the first support member 31 in the vertical direction. The cover member 33 is a plate-like member that covers the groove 31a of the first support member 31 from below. The cover member 33 is provided with a through hole 33a through which the fixing bolt 61 is passed in the vertical direction. The upper surface of the cover member 33 is in contact with the lower end portion of the first support member 31 . The lower surface of the cover member 33 is in contact with the upper surface of the hanger body 41 . The cover member 33 can stably support the slinger body 41 and stably fix the slinger body 41 to the first support member 31 . As shown in FIG. 9 , the cover member 33 is provided for each fixing bolt 61 .

As shown in FIG. 8, the fixing bolt 61 is passed through the groove 31a and the long hole 31b in the vertical direction and penetrates the first support member 31 in the vertical direction. A fixing plate 63 having a female threaded hole 63a into which the fixing bolt 61 is tightened is attached to a portion of the fixing bolt 61 located within the groove 31a. The fixed plate 63 is hooked from above on both edges in the second horizontal direction Y at the lower end of the first support member 31 inside the groove 31a.

A nut 62 is tightened on the fixing bolt 61 . The nut 62 is positioned below the hanger body 41 . A fixing plate 63 fixed to the fixing bolt 61 and a nut 62 sandwich the sling main body 41 and the lower end of the first support member 31 in the vertical direction via the cover member 33 , so that the fixing bolt 61 is fixed. The hanger main body portion 41 is fixed to the first support member 31 via. As shown in FIG. 10 , the nut 62 is tightened with a spanner S from below the sling main body 41 . As shown in FIG. 9 , the lower end of the fixing bolt 61 protrudes below the hanger 40 . The upper end of the fixing bolt 61 is located at the same vertical position as the upper end of the frame member 30 .

The suspension bolt 50 is a bolt extending in the vertical direction. Four suspension bolts 50 are provided. Each hanging bolt 50 is fixed to each hanging tool 40 . Each hanger bolt 50 is vertically passed through the second bolt hole 45 of each hanger 40 . The suspension bolt 50 is a bolt that fixes the indoor unit 20 and the suspension fixture body 41 . In the present embodiment, the suspension bolt 50 fixes the fixture 23 and the suspension fixture main body 41 .

As shown in FIG. 8, the suspension bolt 50 is fixed to the suspension tool body 41 by a pair of nuts 51a and 51b that are tightened on the suspension bolt 50. As shown in FIG. The nuts 51a and 51b are arranged so as to sandwich the hanger body 41 in the vertical direction. The nut 51 a is positioned below the hanger body 41 . The nut 51b is positioned above the hanger body 41 . The nut 51b is a double nut containing two nuts. The hanging bolt 50 is fixed to the hanger main body 41 by vertically sandwiching the portion of the hanger main body 41 provided with the second bolt hole 45 by the nuts 51a and 51b. As shown in FIG. 10, the nut 51a is tightened with a wrench S from below the hanger body 41. As shown in FIG.

The four hanging bolts 50 are fixed to the four fixtures 23 respectively. As shown in FIG. 9 , the suspension bolt 50 is fixed to the fixture 23 of the indoor unit 20 by a pair of nuts 52 tightened on the suspension bolt 50 . The pair of nuts 52 are arranged so as to vertically sandwich the projecting portion 23b of the fixture 23 . The hanging bolt 50 is fixed to the fixing member 23 by vertically sandwiching the protruding portion 23 b between the pair of nuts 52 . Thereby, the hanging bolt 50 is fixed to the indoor unit 20 . By adjusting the vertical positions of the nuts 51 a , 51 b , and 52 with respect to the suspension bolt 50 , the vertical relative positions of the hanger body 41 and the fixture 23 can be adjusted.

The hanging bolt 50 extends downward from the fixing bolt 61 . As shown in FIG. 8, in the present embodiment, the upper end of the hanging bolt 50 is located at the same vertical position as the upper end of the fixing bolt 61 . The upper end of the hanging bolt 50 is located at the same vertical position as the upper end of the frame member 30 .

A worker who installs the indoor unit 20 using the mounting structure 10 first fixes the sling 40 and the sling bolt 50 to the frame member 30 . The worker fixes the frame member 30 to which the hanger 40 and the hanger bolt 50 are attached to the ceiling slab CS. An operator fastens the indoor unit 20 by tightening the nut 52 to the suspension bolt 50 fixed to the ceiling slab CS via the frame member 30 . The hanger 40 and the hanger bolt 50 may be fixed to the frame member 30 after the frame member 30 is fixed to the ceiling slab CS.

11 is a view of the conventional mounting structure 210 and the indoor unit 20 mounted by the conventional mounting structure 210 as viewed in the first horizontal direction X. FIG. As shown in FIG. 11 , the conventional mounting structure 210 includes a frame member 230 and hanging bolts 250 . The frame member 230 has the same structure as the frame member 30 except that the size of the frame formed by the first support member 31 and the second support member 32 is smaller than that of the frame member 30 in the above-described embodiment. is. The frame member 230 is fixed to the ceiling slab CS with a plurality of bolts 260. As shown in FIG. Frame member 230 is positioned above indoor unit 20 . The suspension bolts 250 are directly fixed to respective intersections of the frame member 230 where the first support member 31 and the second support member 32 overlap in the vertical direction. The hanging bolt 250 extends in the vertical direction and fixes the frame member 230 and the fixture 23 . The hanging bolt 250 protrudes upward from the frame member 230 .

As described above, in the conventional mounting structure 210, the suspension bolt 250 is directly fixed to the frame member 230. Therefore, when the horizontal position of each suspension bolt 250 is aligned with the horizontal position of the fixture 23 of the indoor unit 20, the frame size of the frame member 230 tends to be smaller than the size of the indoor unit 20 in plan view. As a result, the indoor unit 20 cannot be arranged inside the frame member 230, and the frame member 230 needs to be arranged above the indoor unit 20. Therefore, it is necessary to dispose the indoor unit 20 downward from the ceiling slab CS by the amount of the frame member 230 arranged upward.

Also, in the conventional mounting structure 210 , the suspension bolt 250 tends to protrude upward from the frame member 230 . Therefore, in order to secure a space for arranging the upper ends of the hanging bolts 250, the position of the frame member 230 also needs to be arranged at a certain distance downward from the ceiling slab CS. As a result, it becomes necessary to dispose the indoor unit 20 further downward from the ceiling slab CS.

From the above, for example, if the ceiling space CA has a relatively small height H1 like the ceiling C in the above-described embodiment, the lower end of the indoor unit main body 21 is formed into a through hole as shown in FIG. It may protrude below the ceiling plate CB from CBa. In other words, part of the indoor unit main body 21 may protrude into the room. In this case, the cover 270 that covers the outer periphery of the portion of the indoor unit main body 21 protruding into the room needs to be arranged between the ceiling plate CB and the decorative panel 22 in the vertical direction. In this case, the installation cost of the indoor unit 20 is increased by the amount that the cover 270 needs to be installed, and the workability of installing the indoor unit 20 is deteriorated. Moreover, there is a problem that the appearance of the indoor unit 20 when viewed from inside the room is deteriorated.

Also, when the cover 270 cannot be provided, it is necessary to change the installation location of the indoor unit 20. Specifically, it is necessary to change the installation location of the indoor unit 20 to a location where the ceiling space CA is large enough to install the ceiling plate CB at the position indicated by the two-dot chain line in FIG. 11 . The height of the ceiling space CA having the ceiling plate CB indicated by the two-dot chain line is a height H2 that is greater than the height H1.

In order to solve the above problem, according to the present embodiment, the mounting structure 10 is provided with the hanger main body 41 fixed to the frame member 30 which is fixed to the ceiling C and has a frame shape in a plan view. . The hanger main body 41 has first bolt holes 44 through which fixing bolts 61 for fixing the frame member 30 and the hanger main body 41 are passed, and for fixing the indoor unit 20 and the hanger main body 41. and a second bolt hole 45 through which the hanging bolt 50 is passed. A portion of the hanger main body 41 where the second bolt hole 45 is provided is located inside the frame member 30 in a plan view when the hanger main body 41 is fixed to the frame member 30 . Therefore, the horizontal position of the suspension bolt 50 can be inside the frame member 30 in plan view. As a result, the horizontal position of the suspension bolt 50 can be aligned with the horizontal position of the fixing member 23 of the indoor unit 20 while making the size of the frame of the frame member 30 larger than that of the indoor unit 20 in plan view. Therefore, a configuration in which at least part of the indoor unit 20 is inserted inside the frame member 30 can be adopted. In other words, the frame member 30 does not have to be arranged above the indoor unit 20, and the indoor unit 20 can be arranged closer to the ceiling slab CS.

Also, the hanging bolt 50 is not directly fixed to the frame member 30, but is fixed to the hanging tool 40. - 特許庁Therefore, by fixing the hanger 40 to the lower side of the frame member 30 , the hanger bolt 50 can be easily arranged downward, and the hanger bolt 50 can be prevented from protruding above the frame member 30 . Thereby, the frame member 30 can be arranged closer to the ceiling slab CS. Therefore, even if a part of the indoor unit 20 cannot be placed inside the frame member 30, the indoor unit 20 can be placed closer to the ceiling slab CS together with the frame member 30.

As described above, with the mounting structure 10 using the hanger 40 of the present embodiment, the indoor unit 20 can be arranged closer to the ceiling slab CS than the conventional mounting structure 210. Therefore, according to the present embodiment, even if the height of the ceiling space CA is relatively small, the indoor unit 20 can be attached to the ceiling C while preventing the indoor unit body 21 from protruding from the ceiling space CA. Therefore, there is no need to provide a member such as the cover 270 described above, so that an increase in the installation cost of the indoor unit 20 can be suppressed, and deterioration in the workability of installing the indoor unit 20 can be suppressed. Moreover, it is possible to prevent the appearance of the indoor unit 20 from being deteriorated when viewed from inside the room. That is, it is possible to improve the design of the indoor unit 20 when viewed from inside the room. Moreover, it is possible to suppress the need to change the installation location of the indoor unit 20 .

Also, according to the present embodiment, a plurality of first bolt holes 44 are provided. Therefore, rotation of the hanger 40 about the central axis of the fixing bolt 61 with respect to the frame member 30 can be suppressed. Thereby, the hanger 40 can be stably fixed to the frame member 30 . Therefore, the indoor unit 20 can be stably attached by the attachment structure 10 .

In addition, according to the present embodiment, the hanger 40 has

flange portions

42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 41, 41, 41, 41, 41, 41, 41, 41, 41, 41, 41, 41, 41, 41, 41, 41, 41, 41, and 41. 43. Therefore, the strength of the hanger 40 can be improved by the

flange portions

42 and 43 . As a result, deformation of the hanger 40 can be suppressed, and the indoor unit 20 can be more stably attached via the hanger 40 .

Further, according to the present embodiment, the

flange portions

42 and 43 extend along the direction from the first bolt hole 44 toward the second bolt hole 45, and are provided as a pair with the first bolt hole 44 interposed therebetween. It is Therefore, even if the pair of

flange portions

42 and 43 do not provide a flange portion on the outer edge portion of the hoisting device 40 in the direction orthogonal to the direction in which the pair of

flange portions

42 and 43 sandwich the first bolt hole 44, the hoisting device 40 can be It is easy to secure the strength of As a result, as shown in FIG. 10, when the fixing bolt 61 passed through the first bolt hole 44 is fixed to the sling main body 41, the spanner S for tightening the nut 62 is held between the pair of

flanges

42 and 43. It can escape in the direction perpendicular to the direction in which the first bolt hole 44 is sandwiched. Therefore, it is possible to prevent the wrench S from interfering with the pair of

flange portions

42 and 43 when tightening the nut 62 . Therefore, the movable range of the spanner S can be easily secured, and the nut 62 can be easily tightened. Therefore, the fixing bolt 61 can easily fix the hanger 40 to the frame member 30 .

Further, according to the present embodiment, the portion of the hanger main body 41 in which the second bolt hole 45 is provided is provided at a position farther from the first bolt hole 44 than the pair of

flange portions

42 and 43. It is In other words, the

flange portions

42 and 43 are not provided in the portions of the

outer edge portions

41c and 41d that sandwich the portion provided with the second bolt hole 45 in the first horizontal direction X. As shown in FIG. Therefore, as shown in FIG. 10 , when the suspension bolt 50 passed through the second bolt hole 45 is fixed to the sling body 41, the wrench S for tightening the nut 51a does not interfere with the

flanges

42 and 43. can be suppressed. This makes it easy to secure the movable range of the spanner S and to easily tighten the nut 51a. Therefore, the hanging bolt 50 can be easily fixed to the hanging tool 40 . As described above, the fixing bolts 61 and the hanging bolts 50 can be easily fixed to the hanger 40, and the installation work of the indoor unit 20 can be facilitated.

Further, according to the present embodiment, the width of the sling main body 41 in plan view decreases from the portion where the first bolt hole 44 is provided toward the portion where the second bolt hole 45 is provided. . Therefore, the width of the portion of the hanger main body 41 where the second bolt hole 45 is provided can be made relatively small. As a result, while suppressing interference of the hanger main body 41 with the indoor unit main body 21 , the portion of the hanger main body 41 provided with the second bolt hole 45 can be secured to the fixture provided on the indoor unit main body 21 . 23 can be easily arranged. Therefore, it is possible to easily attach the indoor unit 20 via the hanger 40 while arranging at least part of the indoor unit main body 21 inside the frame member 30 .

Also, according to the present embodiment, at least part of the indoor unit 20 is inserted inside the frame member 30 . Therefore, regardless of the vertical position of the frame member 30, the indoor unit 20 can be arranged close to the ceiling slab CS. Thereby, as described above, the indoor unit 20 can be attached to the ceiling C while preventing the indoor unit main body 21 from protruding from the ceiling space CA.

Further, according to the present embodiment, the sling main body 41 is fixed to the lower side of the frame member 30 . Therefore, it is easy to lower the vertical position of the hanger body 41 . As a result, the vertical position of the first bolt hole 44 and the vertical position of the second bolt hole 45 can be more easily lowered. Therefore, the vertical position of the fixing bolt 61 passed through the first bolt hole 44 and the vertical position of the hanging bolt 50 passed through the second bolt hole 45 can be more easily lowered. Therefore, it is possible to prevent the fixing bolt 61 and the suspension bolt 50 from protruding above the frame member 30 . This makes it easier to bring the frame member 30 closer to the ceiling slab CS. Therefore, even if the indoor unit 20 cannot be inserted inside the frame member 30, it is possible to prevent the indoor unit main body 21 from protruding from the ceiling space CA.

Also, according to the present embodiment, the upper end of the fixing bolt 61 and the upper end of the hanging bolt 50 are positioned at the same vertical position as the upper end of the frame member 30 . Therefore, the fixing bolt 61 and the hanging bolt 50 do not protrude above the frame member 30 . This makes it easier to bring the frame member 30 closer to the ceiling slab CS. Therefore, it is possible to further prevent the indoor unit main body 21 from protruding from the ceiling space CA.

Although the embodiments of the present disclosure have been described above, the present disclosure is not limited to the configurations of the embodiments described above, and the following configurations and methods can also be adopted.

The shape of the sling body is not particularly limited. The hanger main body may have a polygonal shape other than a triangular shape in a plan view, or may have another shape such as an elliptical shape. The number of the first bolt holes provided in the hanger main body may be one, or may be three or more. A plurality of second bolt holes may be provided in the hanger main body. The hanger main body may be fixed to any part of the frame member. In the embodiment described above, the sling main body 41 may be fixed to the second support member 32 or may be fixed to the upper side of the frame member 30 . The number of flanges provided on the hanger body may be one, or may be three or more. The flange portion may not be provided. The number of hangers included in the mounting structure for mounting the indoor unit is not particularly limited.

The frame member may have any shape as long as it is frame-shaped in plan view. The frame member may have a polygonal frame shape other than a quadrilateral shape. The frame member may be configured in any way. For example, in the embodiment described above, the first support member 31 and the second support member 32 may be L-shaped angle steel or the like. The frame member may be an integrally molded frame-shaped member.

The upper end of the fixing bolt and the upper end of the suspension bolt may be positioned below the upper end of the frame member. In this case as well, the fixing bolts and suspension bolts do not protrude above the frame member, so the frame member can be brought closer to the ceiling slab more favorably. Therefore, it is possible to further prevent the indoor unit main body from protruding from the space above the ceiling. The upper end of the fixing bolt and the upper end of the hanging bolt may be positioned above the upper end of the frame member.

The indoor unit that is mounted by the mounting structure including the hanger may be of any shape as long as it is a ceiling-embedded indoor unit. The indoor unit does not have to be inserted inside the frame member. In this case, the indoor unit is attached to the ceiling while positioned below the frame member.

Each configuration and each method described in this specification can be combined as appropriate within a mutually consistent range.

DESCRIPTION OF SYMBOLS 10... Mounting structure 20... Indoor unit 30... Frame member 40... Hanging tool 41... Hanging

tool body part

41c, 41d...

Outer edge part

42, 43... Flange part 44... First bolt hole 45... 2nd bolt hole, 50... Suspension bolt, 61... Fixing bolt, C... Ceiling

Claims

A hanger for fixing an indoor unit to the ceiling,
Equipped with a hanger main body fixed to a frame member fixed to the ceiling and having a frame shape in a plan view,
The sling main body,
a first bolt hole through which a fixing bolt for fixing the frame member and the sling body is passed;
a second bolt hole through which a hanging bolt for fixing the indoor unit and the sling body is passed;
has
A portion of the hanger body provided with the second bolt hole is positioned inside the frame member in a plan view when the hanger body is fixed to the frame member.
The sling according to claim 1, wherein a plurality of said first bolt holes are provided.
The sling according to claim 1 or 2, further comprising a flange portion that bends and protrudes from the outer edge of the slinger main body and extends along the outer edge of the slinger main body.
The flange portion extends along the direction from the first bolt hole toward the second bolt hole, and is provided as a pair with the first bolt hole interposed therebetween,
4. The sling according to claim 3, wherein the portion of the sling main body provided with the second bolt hole is provided at a position farther from the first bolt hole than the pair of flange portions. .
5. The width of the sling main body in plan view decreases from the portion where the first bolt hole is provided toward the portion where the second bolt hole is provided. lifting equipment described in paragraph 1.
A mounting structure for mounting an indoor unit on a ceiling,
a frame-shaped frame member fixed to the ceiling in plan view;
The sling according to any one of claims 1 to 5, which is fixed to the frame member;
a fixing bolt that passes through the first bolt hole and fixes the frame member and the sling main body;
a suspension bolt that is passed through the second bolt hole and fixes the indoor unit and the suspension fixture main body;
A mounting structure.
The mounting structure according to claim 6, wherein at least part of the indoor unit is inserted inside the frame member.
The mounting structure according to claim 6 or 7, wherein the sling main body is fixed to the lower side of the frame member.
9. The upper end of the fixing bolt and the upper end of the suspension bolt are located at the same vertical position as the upper end of the frame member or below the upper end of the frame member. Mounting structure described in section.