JP2020045672A - Support device - Google Patents

Abstract

To increase the strength of the side part of an article suspended from a ceiling to which a brace is difficult to be attached.SOLUTION: A support device 1 is connected to attachments 101, 101 that are provided so as to project in a cross direction in a pair of parallel side surfaces 100b, 100c of an article 100 suspended from a ceiling, and supports the article 100. This support device 1 comprises: a first member 11 that is connected to the attachments 101 projecting in the cross direction in one side surface 100b of the article 100; a second member 12 that is connected to the attachments 101 projecting in the cross direction in the other side surface 100c; and a connection member 13 that connects the first and second members 11, 12 to each other in a state where the first member 11 is bonded to one side surface 100b and the second member 12 is bonded to the other side surface 100c.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a support device for supporting a suspended object such as an air conditioner in a state of being suspended from a ceiling structure.

  Hanging bolts provided so as to hang from a ceiling structure such as a ceiling slab suspend and support various ceiling hanging objects such as air conditioners, lighting equipment, ducts, and various pipes. Conventionally, there has been known a technique in which a brace serving as a reinforcing member is obliquely attached to this type of suspension bolt to suppress the vibration of the suspension bolt in the event of an earthquake and to prevent a suspended object from falling. (For example, Patent Document 1).

  FIG. 13 is a diagram exemplifying a conventional structure for supporting a suspended object from a ceiling. As shown in FIG. 13, the suspension bolts 5 are provided so as to hang from a ceiling structure 9 such as a ceiling slab. The suspended object 201 has attachment portions 202 for attaching the suspension bolts 5 at positions near the lower ends of the left and right side surfaces. By attaching the lower end of the suspension bolt 5 to the attachment part 202, the suspended object 201 is supported by the suspension bolt 5 in a state of being suspended at a predetermined height. The brace 6 is disposed so as to cross the pair of suspension bolts 5 and 5 in an oblique direction, and both ends thereof are connected to the pair of suspension bolts 5 and 5.

JP 2014-125812 A

  However, when the tip (lower end) of the suspension bolt 5 is attached to a position near the lower end of the side surface of the suspended object 201 as in the above-described conventional support structure, the brace 6 is connected to a position near the lower end of the suspension bolt 5. Can not do. Therefore, as shown in FIG. 13, the reinforcing effect of the brace 6 is not obtained in the region P below the hanging bolt 5, and the region P below the hanging bolt 5 vibrates greatly when an earthquake occurs, and the vibration of the suspended object 201 Is difficult to suppress.

  In particular, many air conditioners of the ceiling installation type are provided with mounting portions 202 for mounting the suspension bolts 5 near the lower end of the side surface of the device, and are not reinforced by the braces 6. It is required to improve the strength of (region P).

  Then, this invention was made in order to solve the said subject, and provides the support apparatus which can improve the intensity | strength of the side part of a ceiling suspended object which is difficult to attach a brace. Aim.

  In order to achieve the above object, first, the present invention is connected to a mounting portion provided so as to protrude laterally on a pair of side surfaces parallel to each other of a ceiling suspended object, and supports the ceiling suspended object. A support device, wherein a first member connected to a pair of the mounting portions projecting laterally on one side surface of the pair of side surfaces, and a first member laterally extending on the other side surface of the pair of side surfaces. A second member connected to the pair of mounting portions protruding, the first member being in close contact with the one side surface, and the first member being in a state in which the second member is in close contact with the other side surface; And a connecting member for connecting the second member to each other.

  Secondly, the present invention provides the support device having the first configuration, wherein each of the first member and the second member includes a pair of pillars erected from each of the pair of mounting portions, And a beam portion connecting the upper end of the pillar portion in the horizontal direction, wherein the beam portion is at least partially located at a position higher than the upper surface of the ceiling suspended object. .

  Thirdly, in the support device having the second configuration according to the present invention, the connecting member may include a beam portion of the first member and a second member at a position higher than an upper surface of the suspended object. Are connected to each other.

  Fourth, the present invention is the support device having the second or third structure, wherein the pair of pillars is formed of an angle steel material.

  Fifth, the present invention is the support device having any one of the second to fourth configurations, wherein the beam portion is provided with a mounting portion to which a bolt can be mounted.

  Sixth, the present invention provides the support device having any one of the first to fifth configurations, further comprising a rectangular frame connected to upper end portions of the first member and the second member, The frame body is joined to a pair of first frame members connected to upper end portions of the first member and the second member, and is joined to upper surfaces of the pair of first frame members, and is orthogonal to the first frame member. And a pair of second frame members arranged so as to be arranged in the same manner.

  Seventh, the present invention provides the support device having the sixth configuration, wherein each of the first frame member and the second frame member has a slit formed along a longitudinal direction. It is.

  ADVANTAGE OF THE INVENTION According to this invention, the intensity | strength of the side part of a ceiling hanging thing to which a brace is difficult to attach can be improved, and when the ceiling hanging thing is hung, excellent seismic performance is exhibited.

It is a perspective view showing the example of composition of the support device in a 1st embodiment. It is a figure which expands and shows a 1st member or a 2nd member. It is a perspective view showing the state where a support device was attached to a suspended object. It is the side view and front view in the state where the support device was attached to a suspended object. It is a figure which shows the example which attached the suspended object to which the support apparatus was assembled to the ceiling structure. It is a perspective view showing the example of composition of the support device in a 2nd embodiment. It is a figure showing the example of composition of the frame material which constitutes a frame. It is a figure which shows the example of a structure of the orthogonal connection metal fitting which connects two frame materials orthogonally. It is a figure which shows the support apparatus in the state which attached the frame to the upper surface of the beam part. It is a figure which shows the example which attached the suspended object to which the support apparatus and the frame were assembled to the ceiling structure. It is a figure showing the example of composition of the support device which uses the frame material of a frame as a connection member. It is a figure which shows the example of the support apparatus which lengthened the column part. It is a figure which illustrates the support structure of the conventional ceiling suspended object.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings. In each of the drawings referred to below, the same reference numerals are given to members common to each other, and overlapping description thereof will be omitted.

(1st Embodiment)
FIG. 1 is a perspective view showing a configuration example of a support device 1 according to one embodiment of the present invention. FIG. 2 is an enlarged view showing the first member 11 (or the second member 12) of the support device 1. FIG. 3 is a perspective view showing a state in which the support device 1 is attached to the suspended object 100 from the ceiling. Further, FIG. 4 is a side view and a front view in a state where the support device 1 is attached to the suspended object 100. The XYZ coordinate system shown in each of these figures is a coordinate system common to each other, and the XYZ coordinate systems shown in other figures are also common coordinate systems.

  The support device 1 illustrated in FIG. 1 is a device for supporting various ceiling suspended objects 100 such as an air conditioner, a lighting fixture, a duct, and various pipes while being suspended from a ceiling structure such as a ceiling slab. This is a device for improving the seismic performance in a state where the ceiling hanging object 100 is supported. In the present embodiment, a ceiling-mounted concealed air conditioner will be described as an example of the suspended ceiling object 100.

  The ceiling suspended object 100 to be suspended has a box shape such as a rectangular parallelepiped, and has a front surface 100a, a rear surface 100d, a right side surface 100b, and a left side surface 100c around the ceiling suspended object 100. The front 100a and the back 100d are parallel to each other. The right side surface 100b and the left side surface 100c are parallel to each other. The ceiling suspended object 100 is configured to suck air from the rear surface 100d and blow out temperature-adjusted air from the front surface 100a. For example, an intake unit (not shown) may be mounted on the back surface 100d of the suspended object 100, or a blowout unit (not shown) may be mounted on the front side 100a.

  Also, removable doors 104 and 105 are provided on at least one side surface 100c of the left and right side surfaces 100b and 100c of the suspended ceiling object 100 to facilitate maintenance inside the air conditioner. In addition, the door 105 is provided with a connection port for a refrigerant pipe and a drain pipe, and also provided with a hole for inserting a power cord and the like.

  Further, mounting portions 101 are provided on the left and right side surfaces 100b and 100c of the ceiling hanging object 100 so as to protrude in the lateral direction. The mounting portion 101 is for mounting bolts such as the suspension bolts 5, and has holes or slits for inserting bolts into plate members protruding horizontally from the side surfaces 100 b and 100 c of the ceiling suspended object 100. This is the configuration provided. For example, two attachment portions 101 are provided on the right side surface 100b at a predetermined interval in the Y direction, and two attachment portions 101 are also provided on the left side surface 100c at a predetermined interval in the Y direction. The two mounting portions 101 provided on the right side surface 100b and the two mounting portions 101 provided on the left side surface 100c sandwich a center line of the ceiling suspended object 100 (a line connecting the centers of the front surface 100a and the back surface 100d). They are provided at symmetrical positions. Further, these mounting portions 101 are provided at predetermined height positions (positions near lower ends) below the left and right side surfaces 100b and 100c of the suspended object 100.

  On the other hand, the support device 1 is connected to the mounting portions 101 provided on the left and right side surfaces 100b and 100c of the suspended ceiling object 100, and is configured to support the suspended ceiling object 100. The support device 1 includes a first member 11 connected to a pair of mounting portions 101 projecting laterally on one side surface 100b of the left and right side surfaces 100b and 100c, and a pair projecting laterally on the other side surface 100c. And a connecting member 13 for connecting the first member 11 and the second member 12 to each other.

  Each of the first member 11 and the second member 12 is a substantially U-shaped (gate-shaped) member, and horizontally connects the pair of pillars 15 and 15 and the upper ends of the pair of pillars 15 and 15. And a beam portion 16. For example, as shown in FIG. 2, the first member 11 and the second member 12 are configured by assembling a substantially L-shaped angle steel material in a U shape. By using the angle steel as the base material of the first member 11 and the second member 12, the rigidity of the first member 11 and the second member 12 can be made higher than that of the suspension bolt 5, and the seismic performance can be improved. it can.

  The pillar portions 15, 15 are plate members each having a plate 15a parallel to the X direction and a plate 15b parallel to the Y direction, and extending in the Z direction and having a substantially L-shaped cross section. The pillars 15, 15 have contact portions 15c that contact the side surfaces 100b, 100c of the suspended ceiling object 100 by bending the distal end portion of the plate 15a in the Y direction. A horizontal plate member 17 is provided below the pillar portions 15. The plate member 17 is provided with a hole through which a bolt 18 is inserted, and the bolt 18 is attached to the hole in advance. For example, the bolt 18 is a bolt of a size that can be attached to the attachment portion 101 of the suspended object 100 from the ceiling, and is held by the nut 18 a so as not to drop from the plate member 17. Therefore, the bolt 18 is held in a state of protruding downward from the lower ends of the pillars 15, 15. The bolts 18 may be fixed to the lower ends of the pillars 15, 15 in advance. Such pillar portions 15, 15 are formed in advance so that the height H from the plate member 17 becomes a predetermined height.

  The pillars 15, 15 are arranged such that the contact portions 15c are in contact with the side surfaces of the suspended object 100, and the plate 15b is parallel to the side surfaces 100b, 100c of the suspended object 100 at a predetermined interval. It is arranged so that it becomes. Therefore, the pillars 15, 15 are provided on the side surfaces 100b, 100c of the ceiling hanging object 100 in order to form a certain space between the side surfaces 100b, 100c of the ceiling hanging object 100 and the plate 15b. 104 and 105 can be opened and closed. Therefore, there is an advantage that the maintenance work of the suspended ceiling object 100 can be performed even when the support device 1 is attached to the suspended ceiling object 100.

  The beam 16 is provided in a state where the upper ends of the pair of pillars 15 are connected to each other. The beam 16 holds the pair of pillars 15, 15 at an interval equal to the interval between the pair of attachments 101 provided on the side surface of the suspended ceiling object 100. The beam portion 16 is a beam member having a substantially L-shaped cross section that has a plate 16a arranged in the horizontal direction and a plate 16b arranged in the vertical direction, and extends in the Y direction. The beam portion 16 has a mounting portion 19 at a position near both ends of the plate 16a arranged in the horizontal direction, to which a bolt such as the suspension bolt 5 can be mounted. The mounting portion 19 is configured by, for example, a long hole or a slit provided along the longitudinal direction (Y direction) of the beam portion 16. By forming the mounting portion 19 with a long hole or a slit, there is an advantage that a position at which a bolt such as the suspension bolt 5 is mounted on the mounting portion 19 can be finely adjusted along the Y direction. Further, the beam portion 16 is provided with connecting portions 16c for attaching the connecting members 13 at positions near both ends of the plate 16b arranged in the vertical direction. The connecting portion 16c is provided, for example, as a hole through which a bolt can be inserted.

  The first member 11 and the second member 12 as described above are in a state in which the pair of bolts 18 hang down from the lower ends of the pair of pillars 15, 15. The interval between the pair of bolts 18 is equal to the interval between the pair of mounting portions 101 provided on the side surfaces 100b and 100c of the suspended object 100. Therefore, as shown in FIG. 1, if the first member 11 and the second member 12 are arranged on the side surfaces 100 b and 100 c of the suspended object 100, a pair of bolts 18 hanging from the pair of pillars 15 and 15 are formed. , Can be attached to a pair of attachment portions 101 provided on each side surface 100b, 100c. Specifically, the first member 11 and the second member 12 are inserted by inserting a bolt 18 into a hole or a slit of the mounting portion 101 and fastening a nut 25 to a tip of the bolt 18 protruding below the mounting portion 101. Can be fixed to the mounting portion 101.

  As shown in FIG. 3, when the first member 11 and the second member 12 are fixed to the mounting portion 101, at least a part of the beam portion 16 of the first member 11 and the second member 12 (particularly, the connection portion 16c is provided). Is preferably located further above the upper surface of the suspended article 100. Therefore, the height H (see FIG. 2) of the pillar portion 15 is designed in advance so as to be higher than the height from the mounting portion 101 of the suspended object 100 to the upper surface.

  Then, the first member 11 and the second member 12 are connected to each other by attaching the connecting member 13 to the connecting portion 16c of the beam portion 16 located above the upper surface of the suspended ceiling object 100. The connecting member 13 in the present embodiment is configured by a rod-shaped body 21 having at least both ends formed with male threads. For example, the rod 21 may be a bolt in which a male screw is formed over the entire length in the longitudinal direction. The first member 11 and the second member 12 are connected to each other by inserting such a connecting member 13 into the connecting portion 16c of the first member 11 and the second member 12 and fastening nuts to both ends. By tightly tightening nuts attached to both ends of the connecting member 13, the connecting member 13 can fix the beam portions 16, 16 of the first member 11 and the second member 12 in a state where they are drawn toward each other. Therefore, as shown in FIG. 4B, the first member 11 and the second member 12 are fixed in a state where the contact portion 15c is in close contact with the side surfaces 100b, 100c of the suspended object 100.

  As described above, the work of assembling the support device 1 to the suspended object 100 can be performed as a floor work at a construction site. That is, before lifting the suspended object 100 to a position near the ceiling structure, the support device 1 can be assembled to the suspended object 100 in advance. Therefore, the support device 1 can be easily attached to the suspended object 100. Then, after attaching the support device 1, the suspended object 100 to which the support device 1 is attached is lifted to a position near the ceiling structure, and suspended from the attachment portion 19 provided on the horizontal plate 16 a of the beam portion 16. Attach and fix bolts such as bolt 5.

  FIG. 5 is a diagram illustrating an example in which the suspended object 100 to which the support device 1 is attached is attached to the ceiling structure 9. As shown in FIG. 5, the ceiling structure 9 such as a ceiling slab is provided with four suspension bolts 5 at positions corresponding to the mounting portions 19 of the support device 1 in advance. The four suspension bolts 5 are mounted on a mounting portion 19 provided on the beam 16 of the support device 1 and support the support device 1 and the suspended object 100 at a predetermined height in a suspended state. . The beam portion 16 of the support device 1 is at a position higher than the upper surface of the suspended object 100. Therefore, the tip end (lower end) of the suspension bolt 5 is connected to the support device 1 at a position higher than the upper surface of the suspended object 100.

  A brace 6 serving as an oblique reinforcing member is attached between a pair of suspension bolts 5 adjacent to each other. That is, the brace connecting metal fittings 7 for connecting the brace 6 are attached to the positions near the upper end and the lower end of the suspension bolt 5, and the ends of the brace 6 are connected to the brace connecting metal 7. A cross-connecting metal fitting 8 is attached to a portion where the two braces 6 intersect, and fixes the central portions of the two braces 6 to each other.

  The brace 6 arranged in a cross between the pair of suspension bolts 5 as described above has an effect of reinforcing the suspension bolt 5. Specifically, the suspension bolt 5 is suppressed from vibrating between the two brace connection fittings 7 arranged near the upper end and the lower end of the suspension bolt 5. In the present embodiment, the lower end of the suspension bolt 5 is connected to the support device 1, and the suspension bolt 5 can be reinforced by attaching the brace connection metal fitting 7 to a position near the lower end. Therefore, the suspension bolt 5 connected to the support device 1 can obtain the reinforcing effect of the brace 6 over substantially the entire upper end portion and lower end portion, and exhibits superior seismic performance compared to the related art. In other words, the support device 1 is fixed to the side surface of the suspended object 100 and can be connected to the suspension bolt 5 at a position higher than the upper surface of the suspended object 100. The portion where the reinforcing effect of the brace 6 cannot be obtained in the lower part of the member 5 can be eliminated, thereby exhibiting excellent seismic performance.

  As described above, the support device 1 of the present embodiment attaches the first member 11 and the second member 12 having higher rigidity than the suspension bolts 5 to the side surfaces 100b and 100c of the suspended object 100, and the first member 11 Further, it is possible to connect the tip (lower end) of the suspension bolt 5 to the upper end of the second member 12. Therefore, the support device 1 of the present embodiment has an advantage that the vibration of the suspended object 100 at the time of an earthquake can be more effectively suppressed than before.

(2nd Embodiment)
Next, a second embodiment of the present invention will be described. In the present embodiment, a configuration example in which a rectangular frame 2 is provided on the support device 1 described in the first embodiment will be described.

  FIG. 6 is a perspective view illustrating a configuration example of the support device 1 according to the present embodiment. The support device 1 of the present embodiment has a configuration in which a rectangular frame 2 is further provided on the upper portion of the support device 1 described in the first embodiment. The frame 2 is configured by assembling four frame members 30 in a rectangular shape. That is, the frame 2 is arranged such that the two frame members 30a and 30c arranged parallel to the Y direction and the two frame members 30b and 30d arranged parallel to the X direction are orthogonal to each other. It consists of.

  FIG. 7 is a diagram illustrating a configuration example of the frame member 30 that forms the frame 2. As shown in FIG. 7A, the frame member 30 connects the flat plate portions of a pair of section steels 41 and 42 such as a lip channel steel or a light channel steel to each other with a predetermined space therebetween. This is the configuration. For example, the frame members 30 are connected as shown in FIG. That is, as shown in FIG. 7B, the frame member 30 has holes 41a, 41b, 42a, 42b through which bolts 45 are inserted at both ends of a pair of shaped steel members 41, 42 having the same length. A bolt 45 is inserted through the holes 41, 41b, 42a, 42b, and a nut 46 is fastened to the tip of the bolt 45, so that the pair of shaped steel members 41, 42 are connected and fixed to each other. At this time, by inserting a cylindrical spacer 44 into the shaft of the bolt 45 between the pair of shaped steels 41, 42, the slits 31 at a predetermined interval are formed between the pair of shaped steels 41, 42 (FIG. 7 (a)). The slits 31 are formed from one end to the other end in the longitudinal direction of the frame member 30. The interval (width) of the slit 31 is an interval at which a bolt member such as the suspension bolt 5 can be inserted. When such a frame member 30 is assembled into a substantially rectangular shape, the frame body 2 extends along the X direction and two parallel slits 31 extending along the Y direction, as shown in FIG. It has two slits 31 parallel to each other. Therefore, the frame 2 can adjust the connection positions of various bolts such as the suspension bolts 5 along the slits 31 in the X direction and the Y direction. The frame member 30 configured as described above is configured using, for example, aluminum shaped steels 41 and 42. Since the aluminum shaped steels 41 and 42 are light in weight, the work efficiency when creating the frame 2 can be improved, and the work efficiency when attaching the support device 1 with the frame 2 attached to the ceiling structure. Can also be improved.

  FIG. 8 is a diagram showing a configuration example of an orthogonal connection metal fitting 32 for connecting two frame members 30, 30 in a state of being orthogonal to each other. FIG. 8 shows an example in which the frame members 30a and 30b are connected as an example. The orthogonal connection fitting 32 is a metal fitting that connects the two frame members 30a and 30b in a state where the two frame members 30a and 30b are orthogonal to each other in a state where the two frame members 30a and 30b are vertically overlapped. The orthogonal connecting bracket 32 includes a perpendicular holding bracket 52 disposed between the two frame members 30a and 30b, and a first bracket 51 disposed on the outer peripheral surface of one of the frame members 30a on the opposite side of the orthogonal holding bracket 52. And a second metal fitting 53 arranged on the outer peripheral surface of the other frame member 30b on the opposite side of the orthogonal holding metal fitting 52.

  The orthogonal holding bracket 52 is different from a rectangular flat plate portion 52a, a pair of first engaging portions 52b and 52c bent at a right angle from the flat plate portion 52a, and a first engaging portion 52b and 52c from the flat plate portion 52a. And a pair of second engagement portions 52d and 52e bent at right angles toward the direction. The flat plate portion 52a is arranged between the two frame members 30a and 30b. A hole 52h through which the bolt 54 can be inserted is provided at the center of the flat plate portion 52a.

  The first engaging portions 52b and 52c are provided in a state of standing upright along a side surface of the frame member 30a from a pair of opposing sides of the flat plate portion 52a. The first engagement portions 52b and 52c are provided upright from the flat plate portion 52a at intervals equal to or slightly larger than the width of the frame member 30a and in parallel with each other. Therefore, as shown in FIG. 8, when the lower surface of the frame member 30a is arranged to contact the upper surface side of the flat plate portion 52a, the first engagement portions 52b and 52c are connected to the side surface of the frame member 30a. Flange part).

  The second engaging portions 52d and 52e are connected to the first engaging portions 52b and 52c from a pair of sides different from the side on which the first engaging portions 52b and 52c are provided along the side surface of the frame member 30b. Are provided upright on the opposite side. The second engagement portions 52d and 52e are set up from the flat plate portion 52a at intervals equal to or slightly larger than the width of the frame member 30b and in parallel with each other. Therefore, as shown in FIG. 8, when the upper surface of the frame member 30b is arranged so as to be in contact with the lower surface side of the flat plate portion 52a, the second engagement portions 52d and 52e are connected to the side surface (of the shaped steel) of the frame member 30b. Flange part). In the present embodiment, since the widths of the frame members 30a and 30b are equal to each other, the flat plate portion 52a has a square shape, and the interval between the first engagement portions 52b and 52c and the interval between the second engagement portions 52d and 52e are different. Equal to each other.

  The first metal fitting 51 has a rectangular flat plate portion 51a, and a pair of engaging portions 51b and 51c bent at a right angle from the flat plate portion 51a. The flat plate portion 51a has a substantially square shape, and is arranged in a state of being in contact with a surface of the outer peripheral surface of one of the frame members 30a opposite to a surface on which the orthogonal holding bracket 52 is provided. A hole 51h through which the bolt 54 can be inserted is provided at the center of the flat plate portion 51a.

  The engagement portions 51b and 51c are provided in a state of standing upright along a side surface of the frame member 30a from a pair of opposing sides of the flat plate portion 51a. The engaging portions 51b and 51c are erected downward from the flat plate portion 51a at intervals equal to or slightly larger than the width of the frame member 30a and in parallel with each other. Therefore, as shown in FIG. 8, when the upper surface of the frame member 30a is arranged so as to contact the lower surface side of the flat plate portion 51a, the engaging portions 51b and 51c are connected to the side surface (the flange portion of the shaped steel) of the frame member 30a. ).

  The second fitting 53 has the same configuration as the first fitting 51. More specifically, the second fitting 53 has a rectangular flat plate portion 53a and a pair of engaging portions 53b and 53c bent at a right angle from the flat plate portion 53a. The flat plate portion 53a has a substantially square shape, and is arranged so as to be in contact with the outer peripheral surface of the other frame member 30b on the opposite side to the surface on which the orthogonal holding bracket 52 is provided. A hole 53h through which the bolt 54 can be inserted is provided at the center of the flat plate portion 53a.

  The engaging portions 53b, 53c are provided in a state of being erected from a pair of opposing sides of the flat plate portion 53a along the side surface of the frame member 30b. The engaging portions 53b and 53c are erected upward from the flat plate portion 53a at intervals equal to or slightly larger than the width of the frame member 30b and in parallel with each other. Therefore, as shown in FIG. 8, when the lower surface of the frame member 30b is arranged so as to contact the upper surface side of the flat plate portion 53a, the engaging portions 53b and 53c are connected to the side surface (the flange portion of the shaped steel) of the frame member 41a. ).

  When the first metal fitting 51, the orthogonal holding metal fitting 52, and the second metal fitting 53 are arranged on the two frame members 30a, 30b as described above, the three holes 51h, 52h, 53h are located coaxially, Moreover, it matches the position of the slit 31 provided in each of the frame members 30a and 30b. In this state, when the bolt 54 is inserted through, for example, the hole 51 a provided in the first metal fitting 51, the tip of the bolt 54 projects from the hole 53 h provided in the second metal fitting 53. By attaching a nut 55 to the tip of the protruding bolt 54 and tightening it, the orthogonal connection fitting 32 connects and fixes the two frame members 30a and 30b in a state of being orthogonal to each other. In particular, when the bolt 54 and the nut 55 are tightened, the first engaging portions 52b and 52c of the orthogonal holding bracket 52 are joined to the side surface of the frame member 30a, and the second engaging portions 52d and 52e are connected to the frame member 30a. Since the two frame members 30a and 30b are fixed in a state of being joined to the side surface of the bolt 30b, the two frame members 30a and 30b do not rotate around the bolt 54, and the orthogonal state is favorably maintained.

  The fastening position by the bolt 54 and the nut 55 can be moved in the X direction along the slit 31 provided in the frame member 30a, and can be moved in the Y direction along the slit 31 provided in the frame member 30b. It is also possible to move to. Therefore, by moving the fastening position of the bolt 54 and the nut 55 in the X direction and the Y direction, the planar shape of the frame 2 can be changed to a square or a rectangle, and the rectangular size of the frame 2 can be appropriately adjusted. Adjustments are also possible. Therefore, it is possible to easily create the frame 2 suitable for the shape and size of the suspended ceiling object 100 supported by the support device 1 at the construction site. For example, as shown in FIG. 6, the frame 2 is formed such that a pair of frame members 30 b and 30 d parallel to the Y direction are at substantially the same intervals as the beam portions 16 and 16 of the support device 1.

  When the frame 2 is formed as described above, the support bolts 33 are attached to a plurality of positions of the frame 2. FIG. 6 shows an example in which two support bolts 33 are attached to the frame members 30b and 30d parallel to the Y direction. For example, as shown in FIG. 6, the support bolt 33 is attached so as not to fall out of the slit 31 using a nut, a washer, or the like while being inserted through the slit 31 of the frame member 30. The support bolt 33 is a bolt that is mounted on the mounting portion 19 provided on the beam 16 of the support device 1 and supports the support device 1 and the suspended object 100 on the ceiling. Since the support bolt 33 is mounted in a state of being inserted through the slits 31 of the frame members 30b and 30d, if the support bolt 33 is moved along the slit 31, the support bolt 33 is adapted to the position of the mounting portion 19 of the support device 1. Can be done. Then, the frame 2 is integrated with the support device 1 by inserting the tip of the support bolt 33 into a hole or slit of the mounting portion 19 and attaching a nut or the like to the tip of the support bolt 33 and tightening.

  FIG. 9 is a diagram illustrating the support device 1 in a state where the frame 2 is attached to the upper surface of the beam portion 16. As shown in FIG. 9, when the support device 1 and the frame 2 are attached to the suspended object 100, the frame 2 is located above the suspended object 100. The tip (lower end) of the suspension bolt 5 hanging from the ceiling structure is attached to the frame member 30 of the frame 2. At this time, the pair of frame members 30b and 30c parallel to the Y direction are fixed to the beam portions 16 of the support device 1, and their positions with respect to the support device 1 cannot be changed. On the other hand, the pair of frame members 30a and 30c parallel to the X direction can be moved in the Y direction by loosening the bolts 54 of the orthogonal connection fitting 32. Therefore, the positions of the pair of frame members 30a and 30c can be finely adjusted according to the positions and intervals of the plurality of suspension bolts 5 hanging down from the ceiling structure.

  In the present embodiment, the work of assembling the support device 1 and the frame body 2 to the suspended ceiling object 100 can be performed as a floor work at a construction site, for example. In other words, before lifting the suspended object 100 to a position near the ceiling structure, the supporting device 1 and the frame 2 can be assembled to the suspended object 100 in advance. Therefore, the support device 1 and the frame 2 can be easily attached to the suspended object 100 from the ceiling. Then, after the support device 1 and the frame 2 are attached to the suspended object 100, the suspended object 100 on which the support device 1 and the frame 2 are attached is lifted to a position near the ceiling structure, and the frame of the frame 2 is lifted. Bolts such as the suspension bolts 5 are mounted and fixed to the slits 31 of the members 30a and 30c. That is, in the present embodiment, the frame 2, the support device 1, and the ceiling suspension are inserted by inserting the four suspension bolts 5 into the slits 31 of the frame members 30a and 30c and then mounting nuts to the tips of the suspension bolts 5. The hanging object 100 can be constructed while being supported by the suspension bolts 5.

  FIG. 10 is a diagram illustrating an example in which the suspended object 100 to which the support device 1 and the frame 2 are attached is attached to the ceiling structure 9. As shown in FIG. 10, a ceiling structure 9 such as a ceiling slab is provided with four suspension bolts 5 in advance. These four suspension bolts 5 are attached to arbitrary positions of the slit 31 of the frame 2, and support the support device 1, the frame 2, and the suspended object 100 at a predetermined height in a suspended state. . And also in this embodiment, similarly to 1st Embodiment, the front-end | tip part (lower end part) of the suspension bolt 5 can be fixed in the position higher than the upper surface of the ceiling suspended object 100.

  Further, the frame 2 of the present embodiment can slide the frame members 30a, 30c parallel to the X direction along the slits 31 of the frame members 30b, 30c parallel to the Y direction. When connecting, the suspension bolt 5 can be connected to an arbitrary position in the X direction along the slit 31 of the frame members 30a, 30c parallel to the X direction. Therefore, there is an advantage that the hanging position of the suspended object 100 in the XY plane can be easily adjusted. That is, the support device 1 of the present embodiment includes the rectangular frame 2 at the upper portion thereof, and a bolt member such as the suspension bolt 5 can be connected to an arbitrary position of the frame member 30 constituting the frame 2. For this reason, it is possible to easily adjust the position when the ceiling hanging object 100 is installed in a suspended state.

  In the present embodiment, the frame 2 attached to the upper portion of the support device 1 has a function of connecting the first member 11 and the second member 12 to each other. Therefore, when the frame 2 is attached to the upper part of the support device 1, it is not necessary to separately use the rod-shaped body 21 as described in the first embodiment. FIG. 11 is a diagram illustrating a configuration example of the support device 1 in which the rod-shaped body 21 is omitted and the frame members 30 a and 30 c of the frame body 2 are used as the connecting members 13. As shown in FIG. 11, if the frame members 30a and 30c of the frame 2 are used as the connecting member 13, the bar-shaped members are formed on the beam portions 16 of the first member 11 and the second member 12 as described in the first embodiment. There is no need to insert and fix the 21. Therefore, in this case, there is no need to provide the connecting portion 16c in the beam portion 16 in advance, and there is an advantage that the operation cost can be reduced.

  Except for the points described above in the second embodiment, the configuration is the same as that described in the first embodiment.

(Modification)
The embodiments of the present invention have been described above. However, the present invention is not limited to the embodiments described above. That is, the present invention can apply various modifications other than the configurations described in the above embodiments.

  For example, in the above embodiment, the case where the brace 6 serving as the diagonal reinforcing member is attached to the suspension bolt 5 connected to the upper part of the support device 1 is illustrated. However, it is not limited to this. That is, if the length in the Z direction of the pillar portions 15, 15 of the first member 11 and the second member 12 constituting the support device 1 is increased, the suspension bolts 5 hanging down from the ceiling structure can be shortened accordingly. it can. If the length of the suspension bolt 5 can be sufficiently reduced, it is not necessary to attach the brace 6 to the suspension bolt 5 and reinforce it. Therefore, as shown in FIG. 12, the length of the pillar portions 15, 15 of the first member 11 and the second member 12 in the Z direction is increased, and the length of the suspension bolts 5 hanging from the ceiling structure 9 is reduced. You may do it. In this case, it is preferable that the beam portions 16 of the first members 15, 15 are installed at a position in contact with the ceiling structure 9 or at a position near the ceiling structure 9. Since the pillar portions 15 and 15 are made of an angle steel material, sufficient strength can be ensured even if the length in the Z direction increases. Therefore, there is an advantage that the work of attaching the brace 6 can be reduced while securing sufficient seismic performance.

  Moreover, in the said embodiment, the case where the suspended object 100 was a concealed air conditioner was illustrated as an example. However, the suspended object 100 is not limited to the concealed type air conditioner, but may be any object installed on the ceiling structure.

  DESCRIPTION OF SYMBOLS 1 ... Support apparatus, 2 ... Frame body, 5 ... Hanging bolt, 11 ... 1st member, 12 ... 2nd member, 13 ... Connecting member, 15 ... Column part, 16 ... Beam part, 18 ... Bolt, 30 (30a, 30b, 30c, 30d) ... frame material, 31 ... slit, 100 ... ceiling suspended object.

Claims (7)

A support device that is connected to a mounting portion that is provided so as to protrude in a lateral direction on a pair of side surfaces parallel to each other of the ceiling hanging object, and supports the ceiling hanging object,
A first member connected to the pair of mounting portions projecting laterally on one side surface of the pair of side surfaces;
A second member connected to the pair of mounting portions projecting laterally on the other side surface of the pair of side surfaces,
A connecting member that connects the first member and the second member to each other in a state where the first member is in close contact with the one side surface and the second member is in close contact with the other side surface;
A support device comprising: Each of the first member and the second member includes:
A pair of pillars standing from each of the pair of mounting portions,
A beam portion connecting the upper end portions of the pair of pillar portions in a horizontal direction,
Has,
The supporting device according to claim 1, wherein at least a part of the beam portion is located at a position higher than an upper surface of the ceiling suspended object.   The said connection member mutually connects the said beam part of the said 1st member, and the said beam part of the said 2nd member in the position higher than the upper surface of the said ceiling suspended object, The said member is characterized by the above-mentioned. The support device according to claim 1.   The support device according to claim 2, wherein the pair of pillars is formed of an angle steel material.   The support device according to any one of claims 2 to 4, wherein the beam portion is provided with a mounting portion to which a bolt can be mounted. A rectangular frame connected to upper ends of the first member and the second member,
Further comprising
The frame body is
A pair of first frame members connected to upper ends of the first member and the second member,
A pair of second frame members joined to the upper surfaces of the pair of first frame members and arranged to be orthogonal to the first frame member;
The support device according to any one of claims 1 to 5, further comprising:   The supporting device according to claim 6, wherein each of the first frame member and the second frame member has a slit formed along a longitudinal direction.

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