JP6197343B2 - Ceiling structure - Google Patents

Description

  The present invention relates to a ceiling structure.

  Conventionally, a ceiling structure in which equipment such as an air conditioner is provided on the ceiling of a room is known. In such a ceiling structure, the lower surface of the equipment forms part of the ceiling, and the equipment is supported by being suspended from a structural housing located further above the ceiling. (For example, refer to Patent Document 1 and Patent Document 2).

  FIG. 1 is a plan view showing an example of a conventional ceiling structure 100 ′, FIG. 2 is a diagram showing a connection state of two frame members 20 ′ and 30 ′ in the conventional ceiling structure 100 ′ shown in FIG. These are side views of the conventional ceiling structure 100 'shown in FIG.

  FIG. 1 shows a state where a conventional ceiling structure 100 ′ of the type described above is looked up from the lower side of a room. On the other hand, FIG. 3 shows the conventional ceiling structure 100 ′ shown in FIG. 1 in a plane including the vertical direction and the horizontal direction of the room.

  In the conventional ceiling structure 100 ′ shown in FIG. 1, a plurality of first frame members 20 ′ extending in the horizontal direction (also one horizontal direction of the room) in FIG. And a plurality of second frame members 30 ′ extending in parallel to each other in the horizontal direction. A section surrounded by four frame members of two first frame members 20 ′ adjacent to each other and two second frame members 30 ′ adjacent to each other constitutes one unit section. There are several such unit sections throughout the ceiling. In one of the plurality of unit sections, an air conditioner 10 that is a kind of equipment is arranged, and in the remaining unit sections, ceiling panels 40 are respectively fitted and four frames surrounding each unit section. It is supported by the member.

  Here, at the place where the first frame member 20 ′ and the second frame member 30 ′ intersect, a part of the insertion fitting provided at the end of one frame member is in the middle of the other frame member. By being inserted into the provided insertion hole, the connection between the first frame member 20 ′ and the second frame member 30 ′ is realized. In FIG. 2, the bent portion of the L-shaped insertion fitting 20a ′ provided at the end of the first frame member 20 ′ is inserted into the second frame member 30 ′ as indicated by a two-dot chain line. The state of being inserted into the hole 30a ′ is shown as an example, and thus the first frame member 20 ′ and the second frame member 30 ′ are connected to each other. Further, as shown in FIG. 2, each of the first frame member 20 ′ and the second frame member 30 ′ has a shape in which the lower part of the cross section is turned upside down. The ceiling plate 40 is supported by arranging the edge of the ceiling plate 40 on the horizontal portions 20b ′ and 30b ′ at the bottom of the T-shape.

  As shown in FIG. 3, the conventional ceiling structure 100 ′ includes ceiling support bolts 12 that suspend and support the first frame member 20 ′ and the second frame member 30 ′ from the structural housing 1. As described above, the first frame member 20 ′ and the second frame member 30 ′ are connected to each other, and the ceiling plate 40 includes the first frame member 20 ′ and the second frame member 20 ′ surrounding the ceiling plate 40. Since the first frame member 20 ′, the second frame member 30 ′, and the ceiling plate 40 are supported by the frame member 30 ′, the first frame member 20 ′ described in FIG. As long as the connection state between the first frame member 30 ′ and the second frame member 30 ′ is not removed, the two members roll together in a state of being suspended by the ceiling support bolts 12.

  In addition to the ceiling support bolt 12, the conventional ceiling structure 100 ′ is additionally provided with an air conditioning support bolt 11 for supporting the air conditioner 10 by suspending it from the structural housing 1 as shown in FIG. 3. The reason for providing the support bolts dedicated to the air conditioner is that the air conditioner 10 is extremely heavy compared to the ceiling plate 40, so that the first frame member 20 ′ and the second frame member around it like the ceiling plate 40. This is because it is difficult to support with 30 'alone. In this way, the air conditioning support bolt 11 that supports the air conditioner 10 supports the first frame member 20 ′ and the second frame member 30 ′ (and indirectly supports the ceiling plate 40). The support of the air conditioner 10 is stabilized by being provided independently of the bolt 12.

Japanese Patent Application Laid-Open No. 07-239093 JP 2007-292214 A

  However, in the ceiling structure of a type in which the air conditioner is suspended from above and supported by the support bolt dedicated to the air conditioner, such as the air conditioner support bolt 11 shown in FIG. 3, the air conditioner and the ceiling are configured when an earthquake occurs. The ceiling member (typically, the combination of the ceiling plate 40, the first frame member 20 ′, and the second frame member 30 ′) sways independently of each other, and the air conditioner and the ceiling It is easy for the members to collide with each other and cause damage or dropping. In fact, in the Great East Japan Earthquake on March 11, 2011, many cases have been reported in which the air conditioner and the ceiling member collide to cause breakage or dropout. From the standpoint of reducing damage from earthquakes, it is desirable to further improve the earthquake resistance of the ceiling structure.

  In view of the above circumstances, an object of the present invention is to provide a ceiling structure with improved earthquake resistance.

In order to achieve the above object, the ceiling structure of the present invention comprises:
Equipment and equipment
A ceiling member provided adjacent to the equipment;
A first suspension member for supporting the facility device by suspending it from a structural housing;
A second suspension member that suspends and supports the ceiling member from the structural housing;
A connecting member for connecting the ceiling member and the equipment,
Equipped with a,
The equipment has a metal fitting that serves as a mounting portion when installing the equipment.
The first suspension member is fixed to the metal fitting;
The connecting member is fixed to the first hanging member above the metal fitting .

  In the ceiling structure of the present invention, the ceiling member and the equipment are connected by the connecting member. Therefore, when an earthquake occurs, the ceiling member and the equipment are swayed in synchronization with each other, and are damaged or dropped due to a collision. Is suppressed. For this reason, the earthquake resistance is improved in the ceiling structure of the present invention.

  Here, in the above-described ceiling structure, a preferred form is that “the connecting member connects the ceiling member and the equipment device by connecting the ceiling member and the first suspension member”. It is.

  When equipment equipment rolls due to an earthquake, for example, when considered schematically, the equipment equipment rolls like a pendulum connected to the first suspension member. In the preferred form, the connecting member is connected to the first suspension member, so that the roll of the equipment can be easily transmitted to the ceiling member without being twisted, distorted or pulled of the equipment, The movement of the equipment tends to coincide with the movement of the ceiling member. For this reason, possibility that a ceiling member and equipment will collide mutually will be reduced further.

Also,
Equipment and equipment
A ceiling member provided adjacent to the equipment;
A first suspension member for supporting the facility device by suspending it from a structural housing;
A second suspension member that suspends and supports the ceiling member from the structural housing;
A connecting member for connecting the ceiling member and the equipment,
With
The ceiling member is
A plurality of parallel first frame members extending in a first direction;
A plurality of second frame members extending in a second direction intersecting the first direction and parallel to each other;
Surrounded by two first frame members adjacent to each other among the plurality of first frame members and two second frame members adjacent to each other among the plurality of second frame members. And a plate member disposed in the compartment,
The connecting member has a first fixing portion fixed to the first suspension member, and a second fixing portion fixed to the first frame member,
The first fixing part and the second fixing part are fastened together.

The first frame member and the second frame member are steel members having notched portions with a predetermined interval;
  The first frame member and the second frame member may intersect with each other in a state in which respective cutout portions are fitted to each other.

Also,
Equipment and equipment
  A ceiling member provided adjacent to the equipment;
  A first suspension member for supporting the facility device by suspending it from a structural housing;
  A second suspension member that suspends and supports the ceiling member from the structural housing;
  A connecting member for connecting the ceiling member and the equipment,
  With
  A brace member having one end connected to the structural housing and the other end connected to the equipment;
  A damper member provided on the brace member for damping vibration;
  It is characterized by providing.

The other end of the brace member may be connected to the facility device by being fixed to the first suspension member.

  According to the present invention, the earthquake resistance is improved.

It is a top view which shows an example of the conventional ceiling structure. It is a figure which shows the connection state of two frame members in the conventional ceiling structure shown in FIG. It is a side view of the conventional ceiling structure shown in FIG. It is a side view of the ceiling structure which is one Embodiment of this invention. It is a figure which shows the connection state of the 1st frame member and the 2nd frame member in the cross | intersection location. FIG. 5 is an enlarged view showing the right side connecting member of FIG. 4 and the surroundings.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIG. 4 is a side view of the ceiling structure 100 according to an embodiment of the present invention.
In FIG. 4, a ceiling structure 100 according to an embodiment of the present invention is shown in a plane including a vertical direction and a horizontal direction of a room. The state when looking up from the lower side of the room is the same as that of the conventional ceiling structure 100 ′ shown in FIG. 1 (more precisely, the state when looking up from the lower side of the room is shown in FIG. The first frame member 20 ′ and the second frame member 30 ′ are replaced with the first frame member 20 and the second frame member 30 described below, but looked up from the lower side of the room. (Sometimes, the difference between the first frame member 20 ′ and the second frame member 30 ′ and the first frame member 20 and the second frame member 30 described below is not visible). The feature of the ceiling structure 100 in the present embodiment exists in a structure above the ceiling that cannot be seen from the lower side of the room, as will be described below.

  The ceiling structure 100 shown in FIG. 4 is provided with a plurality of first frame members 20 made of steel extending in the horizontal direction in the drawing, and the plurality of first frame members 20 are parallel to each other in the drawing. The plurality of first frame members 20 are overlapped with each other (in FIG. 4, they are illustrated as if one first frame member 20 exists). . The ceiling structure 100 is also provided with a plurality of second frame members 30 made of steel that extend in a direction perpendicular to the drawing and are arranged in the horizontal direction in the drawing. The first frame member 20 and the second frame member 30 intersect each other, and are connected to each other at the intersected portions. A section surrounded by four frame members of two first frame members 20 adjacent to each other and two second frame members 30 adjacent to each other constitutes one unit partition, and the ceiling There are a plurality of such unit sections in total. In one of the plurality of unit sections, an air conditioner 10 that is a kind of equipment is arranged, and in the remaining unit sections, ceiling plates 40 are respectively fitted and four frame members surrounding each section. Is supported by.

  FIG. 5 is a diagram illustrating a connection state of the first frame member 20 and the second frame member 30 at the intersecting location.

  The first frame member 20 and the second frame member 30 each have a cutout portion 20a and a cutout portion 30a. The cutout portion 20a and the cutout portion 30a are predetermined on each frame member. A plurality are arranged at intervals. At the intersection of the first frame member 20 and the second frame member 30, the upward notch portion of one frame member is fitted with the downward notch portion of the other frame member, so that these two frames Connection of members is realized. In FIG. 5, the cutout portion 20a of the first frame member 20 opened on the upper side of FIG. 5 is fitted to the cutout portion 30a of the second frame member 30 opened on the lower side of FIG. The state in which the first frame member 20 and the second frame member 30 are connected is shown as an example. Here, as shown in FIG. 5, the first frame member 20 and the second frame member 30 both have a shape in which the lower part of the cross section is turned upside down. The ceiling board 40 is supported by arranging the edge of the ceiling board 40 on the horizontal portions 20b and 30b extending in the horizontal direction at the bottom of the character.

Returning to FIG. 4, the description will be continued.
The ceiling structure 100 shown in FIG. 4 is provided with rod-like ceiling support bolts 12 that have circumferential screw grooves formed on the side surfaces and can be fastened with nuts. The ceiling support bolt 12 is a member that suspends and supports the first frame member 20 and the second frame member 30 from the structural housing 1. As described above, the first frame member 20 and the second frame member 30 are connected to each other, and the ceiling plate 40 includes the first frame member 20 and the second frame member that surround the ceiling plate 40. 30, the first frame member 20, the second frame member 30, and the ceiling plate 40 roll together in a state where they are suspended by the ceiling support bolts 12 when an earthquake occurs. Will be.

  In addition to the ceiling support bolt 12, the ceiling structure 100 has four screw-like air conditioning support bolts 11 that are formed with screw threads that circulate on the side surface and can be fastened with nuts, as shown in FIG. I have. These four air conditioning support bolts 11 are members that support the air conditioner 10 by suspending it from the structural housing 1. The reason why the support bolts dedicated to the air conditioner 10 are provided in this way is that the air conditioner 10 is extremely heavy compared to the ceiling plate 40, and therefore the first frame member 20 and the second frame member around it like the ceiling plate 40. This is because it is difficult to support with 30 alone. In this way, the air conditioning support bolt 11 that supports the air conditioner 10 supports the first frame member 20 and the second frame member 30 (and indirectly supports the ceiling plate 40). By providing independently, support of the air conditioner 10 is stabilized.

  Here, the air conditioner 10 has a substantially rectangular parallelepiped shape, and the four air conditioning support bolts 11 are provided on four sides of the substantially rectangular parallelepiped shape of the air conditioner 10 extending in the vertical direction in FIG. They are connected to the air conditioner 10 at positions adjacent to each other. In FIG. 4, among these four air conditioning support bolts 11, 2 connected to the air conditioner 10 at positions close to the two sides on the near side of the air conditioner 10 in the direction perpendicular to FIG. 4. Only the two air conditioning support bolts 11 are shown, and the remaining two air conditioning support bolts 11 are hidden by the two air conditioning support bolts 11 shown in FIG. Is not shown. Details of the connection between the air conditioning support bolt 11 and the air conditioner 10 will be described later.

  Even if the air conditioner 10 suspended from the air conditioning support bolt 11 does not contact the first frame member 20, the second frame member 30, or the ceiling plate 40 at all, or even slightly contact them. If there is no significant restraint, the air conditioner 10 will roll independently of the first frame member 20, the second frame member 30, and the ceiling board 40 when an earthquake occurs. The frame member 20, the second frame member 30, and the ceiling board 40 collide with each other and easily break or fall off. In fact, in the Great East Japan Earthquake on March 11, 2011, there have been many reports of cases of damage and dropout caused by such collisions.

  Therefore, in the ceiling structure 100 of the present embodiment, the air conditioner 10 is indirectly connected to the first frame member 20, the second frame member 30, and the ceiling board 40 from the viewpoint of improving the earthquake resistance of the ceiling structure. A connecting member 15 is provided as a member. Below, this connection member 15 is demonstrated.

The ceiling structure 100 is provided with a total of four connecting members 15. These four connecting members 15 are respectively fixed to the four air conditioning support bolts 11 and surround the air conditioner 10. It is fixed to either one of the two first frame members 20 parallel to each other among the four frame members. In FIG. 4, two of the four connecting members 15 are fixed to the common first frame member 20 located on the front side of the air conditioner 10 in the direction perpendicular to FIG. 4. Of the above-described four air conditioning support bolts 11 connected to the air conditioner 10, they are fixed to the two air conditioning support bolts 11 on the front side of the air conditioner 10 in the direction perpendicular to FIG. 4. Only two connecting members 15 are shown. The remaining two connecting members 15 are fixed to a common first frame member 20 located on the back side of the air conditioner 10 in the direction perpendicular to FIG. 4 and perpendicular to FIG. The direction is fixed separately to the two air conditioning support bolts 11 on the back side of the air conditioner 10, but is hidden in the two connecting members 15 shown in FIG. Not shown.
Hereinafter, the connecting member 15 will be described in more detail.

FIG. 6 is an enlarged view showing the connecting member 15 on the right side of FIG. 4 and the surroundings.
The connecting member 15 has a first fixing portion 15 a fixed to the air conditioning support bolt 11 and a second fixing portion 15 b fixed to the first frame member 20. The first fixing portion 15a and the second fixing portion 15b are fastened to each other using bolts and nuts. That is, the air conditioning support bolt 11 and the first frame member 20 are connected to each other by the connecting member 15.

  Here, as shown in FIG. 6, the air conditioner 10 is provided with a metal fitting 10 a serving as an attachment portion when the air conditioning support bolt 11 is attached, and the lower end portion of the air conditioning support bolt 11 is The metal fitting 10a is fastened with a nut. With this fastening, when an earthquake occurs, the air conditioning support bolt 11 and the air conditioner 10 perform the same movement, for example, a synchronized roll.

  On the other hand, as described above with reference to FIG. 5, the first frame member 20 is connected to the second frame member 30 and supports the ceiling plate 40 together with the second frame member 30. The frame member 20, the second frame member 30, and the ceiling board 40 sway together as they are suspended from the ceiling support bolt 12.

  Therefore, the connecting member 15 that connects the air conditioning support bolt 11 and the first frame member 20 is substantially a set of the first frame member 20, the second frame member 30, and the ceiling plate 40, and an air conditioner. 10 is indirectly connected. Therefore, the roll of the air conditioner 10 is synchronized with the roll of the set of the first frame member 20, the second frame member 30, and the ceiling plate 40, and the air conditioner 10 at the time of the occurrence of the earthquake, The damage and dropout caused by the collision with the first frame member 20 or the second frame member 30 or the ceiling board 40 can be suppressed. For this reason, the ceiling structure 100 has improved earthquake resistance.

  Here, the roll of the air conditioner 10 can be considered as a roll as a pendulum connected to the air conditioning support bolt 11 when considered schematically. In the ceiling structure 100, the connecting member 15 is supported by the air conditioner. By being fixed to the bolt 11, the roll of the air conditioner 10 is directly applied to the first frame member 20, the second frame member 30, and the ceiling plate 40 without being twisted, distorted or pulled. It is easy to communicate. For this reason, the movement of the air conditioner 10 easily matches the movement of the first frame member 20, the second frame member 30, and the ceiling plate 40, and the air conditioner 10 and the first frame member 20 or the second frame member. 30 or the possibility of collision with the ceiling board 40 is further reduced.

  As shown in FIGS. 4 and 6, the ceiling structure 100 is provided with a brace member 13 having one end connected to the structural housing 1 and the other end connected to the air conditioning support bolt 11. On the brace member 13, a damper member 14 that attenuates vibration transmitted through the brace member 13 is provided. As described above, since the air conditioning support bolt 11 is connected to the air conditioner 10, when the earthquake occurs, the brace member 13 and the damper member 14 absorb the roll of the air conditioner 10, and the earthquake resistance is achieved. Has improved.

  Here, if the brace member 13 is connected to the first frame member 20, the second frame member 30, and the ceiling plate 40 instead of the air conditioning support bolt 11, the roll of the air conditioner 10 is The first frame member 20, the second frame member 30, and the ceiling plate 40 are transmitted to the brace member 13 and the damper member 14. The plate 40 is subjected to a load (for example, deformation such as distortion caused by vibration) accompanying vibration transmission. In the ceiling structure 100, such a load is caused when the brace member 13 is connected to the air conditioning support bolt 11 without passing through the first frame member 20, the second frame member 30, and the ceiling plate 40. It has been avoided.

  In addition, since the brace member 13 is connected to the air conditioning support bolt 11, the roll as the pendulum of the air conditioner 10 causes the twist, distortion, and tension of the air conditioner 10 for the same reason as described above. It is easy to be transmitted to the brace member 13 without accompanying. For this reason, the rolling absorption effect by the brace member 13 and the damper member 14 is great.

  In particular, in the ceiling structure 100, as shown in FIG. 6, the height h in the vertical direction of the connection portion of the brace member 13 in the air conditioning support bolt 11 is about the vertical direction of the position O of the center of gravity of the air conditioner 10. Close to height. The roll of the air conditioner 10 can be considered by replacing it with a roll of a mass point that is located at the center of gravity of the air conditioner 10 and has the weight of the air conditioner 10. For this reason, since the positional relationship in the vertical direction is established, the roll as the pendulum of the air conditioner 10 is more easily transmitted to the brace member 13.

  Further, in the ceiling structure 100, the brace member 13 and the damper member 14 are provided, so that the brace member 13, the damper member 14, the connecting portion 15, and the air conditioner 10 (the air conditioner 10 is air-conditioned as described above). And the first frame member 20 and the second frame member 30 in the ceiling structure 100 are combined together (indirectly connected to both the damper member 14 and the connecting portion 15 via the support bolts 11). And the effect of functioning as a vibration control device for the entire ceiling panel 40 is produced.

  Here, from the viewpoint of the air conditioning capability of the air conditioner required according to the size of the room, the weight of the air conditioner is the sum of all the first frame members, the second frame members, and the ceiling plate in the ceiling structure. It is generally about 10% of the total weight. In addition, the weight of the air conditioner actually occupies most of the combined weight of the connecting member, the air conditioner, the brace member, and the damper member.

  That is, the configuration of the ceiling structure 100 in the present embodiment corresponds to the case where the damping effect by the damping device including the brace member 13, the damper member 14, the connecting portion 15, and the air conditioner 10 as a constituent element is the highest. With this configuration, the earthquake resistance is further improved.

  Moreover, in the ceiling structure 100, as shown in FIG. 6, the 1st fixing | fixed part 15a which the connection member 15 has is for the air conditioning which is immediately above the fastening location of the support bolt 11 for an air conditioning and the metal fitting 10a, and close to this fastening location. It is fixed to the air conditioning support bolt 11 at a position on the support bolt 11. On the other hand, the lower end portion of the brace member 13 is fixed to the air conditioning support bolt 11 at a position on the air conditioning support bolt 11 immediately above the fixing position of the first fixing portion 15a and close to the fixing position. In other words, in the ceiling structure 100, the connecting member 15 and the brace member 13 are located on the air conditioning support bolt 11 immediately above this location adjacent to the location where the metal fitting 10a is fastened and at a position very close to the metal fitting 10a. It is fixed to the air conditioning support bolt 11.

  Here, in general, in the type of equipment that is used by being suspended from the ceiling of a room, such as the air conditioner 10 of FIG. 4, when the hanging member to be suspended is connected, A large force is applied around the metal fitting. For this reason, in many cases, a contrivance has been made such that a structure having high durability against deformation is provided around the metal fitting serving as the attachment portion, or the metal metal periphery is formed of a material having high durability against deformation. In other words, the bracket periphery is often relatively sturdy compared to other parts of the equipment. The air conditioner 10 in FIG. 4 has a sturdy structure around the metal fitting 10a for the same reason.

  In the ceiling structure 100, the connecting member 15 and the brace member 13 are fixed on the air conditioning support bolt 11 at a position immediately above the metal fitting 10 a adjacent to the metal fitting 10 a, so that the connection member is connected via the air conditioning support bolt 11. The force exerted on the air conditioner 10 from the brace member 13 and the brace member 13 is exerted around the sturdy metal fitting 10a. For this reason, the risk that the air conditioner 10 is deformed due to the force exerted on the air conditioner 10 from the connecting member 15 and the brace member 13 is suppressed.

  Moreover, in the ceiling structure 100, as demonstrated in FIG. 5, the connection method that the 1st frame member 20 and the 2nd frame member 30 are connected by mutual notch part fitting is connected. By adopting, the strong connection between the first frame member 20 and the second frame member 30 is realized.

  On the other hand, in the conventional ceiling structure, as described with reference to FIG. 2, the L-shaped insertion fitting 20a ′ provided at the end of one frame member has an insertion hole 30a ′ provided in the middle of the other frame member. The two frame members are connected by being inserted into the frame. However, with this plug-in connection method, there is a problem that the plug 20a 'is pulled out of the plug-in hole 30a' due to vibration and is easily disconnected during an earthquake. Actually, in the conventional ceiling structure 100 ′ as shown in FIG. 3 adopting the connection method of FIG. 2, the brace member to which the damper member is attached, the first frame member 20 ′ and the second frame member 30 ′, After the ceiling structure is reinforced by connecting to the structural housing 1, some of the plurality of ceiling plates 40 in the reinforced ceiling structure are replaced with several lighting fixtures for ceiling installation having the same area. As a result of a vibration experiment, each of the first frame member 20 ′ and the second frame member 30 ′ was disconnected and the lighting apparatus dropped out.

In the ceiling structure 100 of the present embodiment, the connection method by fitting the notch portions described above is adopted, so that the connection between the two frame members is stronger than the connection method of the insertion in the conventional ceiling structure 100 ′. It has become. For this reason, in the ceiling structure 100, the plate member 40 and the air conditioner 10 are less likely to drop off from the first frame member 20 and the second frame member 30 compared to the conventional ceiling structure 100 ′, and the earthquake resistance is improved. Yes.
The above is the description of the embodiment of the present invention.

  In the above description, the combination of the first frame member 20, the second frame member 30, and the ceiling board 40 corresponds to an example of the ceiling member according to the present invention, and the air conditioner 10 refers to the present invention. It corresponds to an example of equipment. The air conditioning support bolt 11 corresponds to an example of the first suspension member according to the present invention, and the ceiling support bolt 12 corresponds to an example of the second suspension member according to the present invention. Moreover, the connection member 15, the brace member 13, the damper member 14, and the metal fitting 10a correspond to an example of the connection member, the brace member, the damper member, and the metal fitting according to the present invention, respectively.

  Here, although the case where the equipment is the air conditioner 10 has been described as an example in the above embodiment, the equipment in the ceiling structure of the present invention may be a lighting fixture other than the air conditioner. Moreover, the composite system which has the function of an air conditioner and the function of a lighting fixture may be sufficient. As such a composite system, for example, a configuration in which a duct of an air conditioner is provided at the center of the bottom surface portion having the same area as the ceiling board, and a plurality of lighting devices are arranged around the duct.

In the above description, the air conditioning support bolt 11, the ceiling support bolt 12, and the brace member 13 are connected to the upper horizontal surface (ceiling slab surface) of the structural housing 1 (see FIG. 4). In the ceiling structure of the invention, the first suspension member, the second suspension member, and the brace member may be connected to a beam as a part of the structural housing 1, and the vertical suspension of the structural housing 1 You may be connected to the wall surface extended in the surface containing a direction.

DESCRIPTION OF SYMBOLS 1 Structure housing 10 Air conditioner 10a Metal fitting 11 Air conditioning support bolt 12 Ceiling support bolt 13 Brace member 14 Damper member 15 Connection member 15a First fixing portion 15b Second fixing portion 20, 20 'First frame member 20a' Insertion fitting 20b, 20b ′, 30b, 30b ′ Horizontal portion 30, 30 ′ Second frame member 30a ′ Insertion hole 40 Ceiling plate 100, 100 ′ Ceiling structure

Claims (6)

Equipment and equipment
A ceiling member provided adjacent to the equipment;
A first suspension member for supporting the facility device by suspending it from a structural housing;
A second suspension member that suspends and supports the ceiling member from the structural housing;
A connecting member for connecting the ceiling member and the equipment,
Equipped with a,
The equipment has a metal fitting that serves as a mounting portion when installing the equipment.
The first suspension member is fixed to the metal fitting;
The connecting member is fixed to the first suspension member above the metal fitting, and the ceiling structure is characterized in that:   The ceiling structure according to claim 1, wherein the connecting member connects the ceiling member and the facility device by connecting the ceiling member and the first suspension member. Equipment and equipment
  A ceiling member provided adjacent to the equipment;
  A first suspension member for supporting the facility device by suspending it from a structural housing;
  A second suspension member that suspends and supports the ceiling member from the structural housing;
  A connecting member for connecting the ceiling member and the equipment,
  With
The ceiling member is
  A plurality of parallel first frame members extending in a first direction;
  A plurality of second frame members extending in a second direction intersecting the first direction and parallel to each other;
  Surrounded by two first frame members adjacent to each other among the plurality of first frame members and two second frame members adjacent to each other among the plurality of second frame members. And a plate member disposed in the compartment,
  The connecting member has a first fixing portion fixed to the first suspension member, and a second fixing portion fixed to the first frame member,
The ceiling structure, wherein the first fixing part and the second fixing part are fastened. The first frame member and the second frame member are steel members having notched portions with a predetermined interval;
  The ceiling structure according to claim 3, wherein the first frame member and the second frame member intersect with each other in a state in which respective cutout portions are fitted to each other. Equipment and equipment
  A ceiling member provided adjacent to the equipment;
  A first suspension member for supporting the facility device by suspending it from a structural housing;
  A second suspension member that suspends and supports the ceiling member from the structural housing;
  A connecting member for connecting the ceiling member and the equipment,
  With
  A brace member having one end connected to the structural housing and the other end connected to the equipment;
  A damper member provided on the brace member for damping vibration;
  A ceiling structure characterized by comprising: The ceiling structure according to claim 5, wherein the other end of the brace member is connected to the equipment by being fixed to the first suspension member.

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