Structure fixture

Abstract

To provide a structure fixture capable of fitting a structure below a lip groove part at the lower part of a T-bar of a system ceiling.SOLUTION: A structure fixture 1 is such one as to fit a structure body to a T-bar of a system ceiling. The structure fixture 1 includes a bottom surface part 10, and a pair of side surface parts 11, 12. The bottom surface part 10 faces the lower surface of a lip groove part at the lower part of the T-bar. The pair of side surface parts 11, 12 project to the upper side of the bottom surface part 10 from both ends thereof and face the side plate parts on both sides of the lip groove part. The bottom surface part 10 includes a T-bar fitting part 15 and a structure fixation part 16. The T-bar fitting part 15 is fitted to the lower surface of the lip groove part. The structure body is fixed to the structure fixation part 16.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present disclosure relates generally to a structural fixture, and more particularly to a structural fixture capable of attaching a structure to a T-bar of a system ceiling. [Background technology]

[0002] The lighting fixture described in Patent Document 1 is attached to a ceiling opening in a system ceiling formed by combining multiple support members (T-bars) in a grid pattern. The lighting fixture includes a fixture body, a light source unit, and multiple mounting members. The fixture body has four side panels and is formed in a square frame shape. Two of the four side panels, facing each other, are provided with claws that protrude outward. The multiple mounting members are formed with first openings into which the claws of the fixture body are inserted, second openings connected to the first openings to guide the sliding of the claws inserted into the first openings and to hold the slid claws, and mounting holes. The mounting members are temporarily held on the fixture body by inserting the claws of the fixture body into the second openings, and are fixed to the side panels by fastening members inserted into the mounting holes and fixing them to fixing holes in the side panels. The fixture body is attached to the support members by hooking the mounting members fixed to the side panels onto the tips of the support members. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent Publication No. 2021-99941 Summary of the Invention [Problem to be solved by the invention]

[0004] Incidentally, among the types of T-bars, there are T-bars that have a lip groove at the bottom of the T-bar. In recent years, there has been a demand for attaching a structure such as a lighting fixture below the lip groove of such a T-bar.

[0005] An object of the present disclosure is to provide a structural attachment device that can attach a structural body below the lip groove portion at the bottom of the T-bar of a system ceiling. [Means for solving the problem]

[0006] A structural fixture according to one embodiment of the present disclosure is a structural fixture for attaching a structural member to a T-bar of a system ceiling. The structural fixture comprises a bottom surface portion and a pair of side surfaces. The bottom surface portion faces the underside of the lip groove portion at the bottom of the T-bar. The pair of side surfaces protrude upward from both ends of the bottom surface portion and face the side plate portions on both sides of the lip groove portion. The bottom surface portion has a T-bar mounting portion and a structural member fixing portion. The T-bar mounting portion is attached to the underside of the lip groove portion. The structural member is fixed to the structural member fixing portion. [Effects of the Invention]

[0007] The structural body fixture according to one embodiment of the present disclosure has the advantage that it is possible to attach a structural body below the lip groove portion at the bottom of the T-bar of a system ceiling. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1 is a perspective view of a structural fixture according to the first embodiment attached to a system ceiling. [Figure 2] FIG. 2 is a cross-sectional view taken along line Z1-Z1 in FIG. [Figure 3] FIG. 3 is a cross-sectional view of the structural fixture of the same with a lighting fixture attached thereto. [Figure 4] FIG. 4 is an exploded perspective view of the structural body fixture. [Figure 5] FIG. 5 is a cross-sectional view of a structure fixture according to a first modified example of the first embodiment. [Figure 6] FIG. 6 is a cross-sectional view of a main part of a structural body fixture according to a second modification of the first embodiment. [Figure 7] FIG. 7 is a cross-sectional view of a state in which a curtain rail is attached to a structure fixture according to a seventh modification of the first embodiment. [Figure 8] FIG. 8 is a perspective view of a structural body fixture according to the second embodiment. [Figure 9] FIG. 9 is a cross-sectional view of the structural fixture attached to a system ceiling. [Figure 10] FIG. 10 is a cross-sectional view of the structural fixture of the same with a lighting fixture attached thereto. [Figure 11] FIG. 11 is a perspective view of one variation of a structural body fixture according to Modification 1 of Embodiment 2. FIG. [Figure 12] FIG. 12 is a perspective view of another variation of the structure fixture according to Modification 1 of Embodiment 2. FIG. [Figure 13] FIG. 13 is a perspective view illustrating an applicator attached to a structure fixture according to Modification 2 of Embodiment 2. FIG. [Figure 14] FIG. 14 is a cross-sectional view of the structure fixture according to the second modification in a state where an applicator is attached to the structure fixture. DETAILED DESCRIPTION OF THE INVENTION

[0009] Hereinafter, structural fixtures according to embodiments will be described with reference to the drawings. However, the drawings described in the following embodiments are schematic diagrams, and the ratios of the sizes and thicknesses of the components do not necessarily reflect the actual dimensional ratios. Note that the configurations described in the following embodiments are merely examples of the present disclosure. The present disclosure is not limited to the following embodiments, and various modifications are possible depending on the design, etc., as long as the effects of the present disclosure can be achieved.

[0010] (Embodiment 1) (1) Overview An overview of a structure fixture 1 according to a first embodiment will be described with reference to FIGS. 1 to 3. FIG.

[0011] As shown in Figures 1 to 3, the structural fixture 1 according to the first embodiment is a structural fixture for attaching a structural body 4 to a T-bar 3 of a system ceiling 2. The structural fixture 1 comprises a bottom surface portion 10 and a pair of side surfaces 11 and 12. The bottom surface portion 10 faces the lower surface 32a of the lip groove portion 32 of the T-bar 3. The pair of side surfaces 11 and 12 protrude upward from both ends of the bottom surface portion 10 and face the side plate portions 34 on both sides of the lip groove portion 32. The bottom surface portion 10 comprises a T-bar attaching portion 15 and a structural body fixing portion 16. The T-bar attaching portion 15 is attached to the lower surface 32a of the lip groove portion 32. The structural body 4 is fixed to the structural body fixing portion 16.

[0012] According to this configuration, the structural fixture 1 can be used to attach the structural body 4 below the lip groove portion 32 at the bottom of the T-bar 3 of the system ceiling 2. At that time, the pair of side surface portions 11, 12 can prevent the side plate portions 34 on both sides of the lip groove portion 32 from opening outward due to the weight of the structural body 4.

[0013] (2) Details The structural body fixture 1 according to the first embodiment will be described in detail with reference to FIGS.

[0014] As shown in Figure 1, the structural fixture 1 of embodiment 1 is a fixture for attaching a structural body 4 (a lighting fixture 5 in the example of Figure 1) to the underside 32a of the lip groove portion 32 at the bottom of multiple T-bars 3 that make up a system ceiling 2.

[0015] (2-1) System ceiling 2 configuration As shown in FIG. 1, the system ceiling 2 includes a plurality of T-bars 3 and a plurality of ceiling panels 6.

[0016] The multiple T-bars 3 are combined in a grid pattern. The multiple T-bars 3 are connected to corresponding hanging bolts embedded in the building's ceiling slab by multiple T-hangers, each attached to a corresponding hanging bolt. By combining the multiple T-bars 3 in a grid pattern, multiple approximately square openings (hereinafter referred to as ceiling openings), each with a side length equal to the spacing between adjacent T-bars 3, are arranged in a grid pattern.

[0017] The ceiling panels 6 are attached to the weather openings so as to cover the ceiling openings. In this attached state, the lower surface 32a of the lip groove portion 32 at the bottom of each of the T-bars 3 is exposed from the gap between the adjacent ceiling panels 6.

[0018] 2, the T-bar 3 includes a vertical piece 30, a support portion 31, and a lip groove portion 32. In the following description, the thickness direction of the vertical piece 30 will be referred to as the "thickness direction X1."

[0019] The vertical piece 30 is a long, flat plate extending in a vertical position in the horizontal direction (the direction perpendicular to the paper surface in the example of FIG. 2). The vertical piece 30 is formed, for example, by two metal flat plates overlapping in the horizontal direction (direction X1). The short-side direction of the main surfaces on both sides of the thickness direction X1 of the vertical piece 30 coincides with the up-down direction, and the long-side direction of the main surfaces on both sides of the thickness direction X1 of the vertical piece 30 coincides with the horizontal direction (the direction perpendicular to the paper surface in FIG. 2). The support portion 31 is formed in a square tube shape and provided at the upper end of the vertical piece 30. As described above, the support portion 31 is a portion that is connected to the hanging bolt by the T-hanger. The lip groove portion 32 is provided at the lower end of the vertical piece 30. The lip groove portion 32 is a groove portion with a C-shaped cross section.

[0020] More specifically, the lip groove portion 32 includes an upper plate portion 33, a pair of side plate portions 34, and a pair of flange portions 35. The upper plate portion 33 constitutes the top plate of the lip groove portion 32. In the example of FIG. 2, the upper plate portion 33 is formed by overlapping and bending a portion extending from the lower end 30a of the vertical piece 30 to both outer sides in the thickness direction X1 and a portion extending from the upper end of each of the pair of side plate portions 34 to the inner side in the thickness direction X1. The upper plate portion 33 protrudes from the lower end 30a of the vertical piece 30 to both sides in the thickness direction X1 of the vertical piece 30. That is, the vertical piece 30 is provided at the center of the upper surface of the upper plate portion 33 in the width direction (i.e., the thickness direction X1). The upper plate portion 33 is provided over the entire longitudinal direction of the vertical piece 30 (the direction perpendicular to the paper surface of FIG. 2). The pair of side plate portions 34 are provided so as to protrude downward from both ends of the upper plate portion 33 in the width direction (i.e., the thickness direction X1). The pair of side plate portions 34 are provided across the entire longitudinal direction of the upper plate portion 33 (the direction perpendicular to the paper surface of FIG. 2). The pair of flange portions 35 correspond to the pair of side plate portions 34 and are provided so as to protrude from the lower ends of the corresponding side plate portions 34 in the opposing direction of the pair of side plate portions 34 (the thickness direction X1). The pair of flange portions 35 are provided across the entire longitudinal direction of the pair of side plate portions 34 (the direction perpendicular to the paper surface of FIG. 2). The pair of flange portions 35 are arranged with a gap (gap S2) between them. The lower surface 35a of each of the pair of flange portions 35 forms the lower surface 32a of the lip groove portion 32 and is exposed downward from the gap between adjacent ceiling panels 6.

[0021] Each of the multiple ceiling panels 6 is a rectangular plate of the same shape and size as the multiple ceiling openings. The thickness d1 of the ceiling panel 6 is greater than the vertical length d2 of the lip groove portion 32 of the T-bar 3. A step portion 62 recessed above the lower surface 61 is provided at the peripheral edge of the lower surface 61 of the ceiling panel 6. The step portion 62 fits into the half portion 32L or 32R in the width direction (thickness direction X1) of the lip groove portion 32 of the T-bar 3. The top surface 62a of the step portion 62 is the portion that rests on the upper surface of the half portion 32L or 32R of the lip groove portion 32. When the top surface 62a is placed on the upper surface of the half portion 32L or 32R of the lip groove portion 32, the inner surface 62b of the step portion 62 faces the side surface of the lip groove portion 32 with a gap d3 between them. The gap d3 is large enough to allow insertion of a side portion (first side portion 11 or second side portion 12) of the structural body fixture 1, which will be described later. In other words, the gap d3 is approximately the same size as (more specifically, slightly larger than) the thickness of the side portion (first side portion 11 or second side portion 12) of the structural body fixture 1.

[0022] (2-2) Configuration of structural fixture 1 As shown in Fig. 4, the structural body fixture 1 includes a bottom surface portion 10, a pair of side surface portions 11, 12, at least one set (two sets in the example of Fig. 4) of first fastening parts 20 and second fastening parts 21, and at least one (five in the example of Fig. 4) third fastening part 22. In Fig. 4, direction W1 is the longitudinal direction of the bottom surface portion 10, direction W2 is the width direction of the bottom surface portion 10, and direction W3 is the thickness direction of the bottom surface portion 10.

[0023] The bottom surface portion 10 and the pair of side surfaces (first side surface portion 11 and second side surface portion 12) are made of, for example, metal.

[0024] The bottom surface portion 10 is a portion facing the lower surface 32a of the lip groove portion 32 of the T-bar 3. The bottom surface portion 10 is a rectangular flat plate disposed in a horizontal position. More specifically, the bottom surface portion 10 includes a first bottom surface member 13 and a second bottom surface member 14. The first bottom surface member 13 is a rectangular flat plate disposed in a horizontal position. The second bottom surface member 14 is, for example, a flat plate having the same shape and size as the first bottom surface member 13 and disposed in a horizontal position. However, the second bottom surface member 14 is not limited to being a flat plate having the same shape and size as the first bottom surface member 13. The second bottom surface member 14 is disposed below the first bottom surface member 13 and overlaps it. In a plan view from the thickness direction W3, the longitudinal directions of the first bottom surface member 13 and the second bottom surface member 14 are parallel to each other and coincide with the longitudinal direction W1 of the bottom surface portion 10.

[0025] The bottom surface portion 10 has at least one T-bar mounting portion 15 (two in the example of FIG. 4) and at least one structure fixing portion 16 (five in the example of FIG. 4).

[0026] The two T-bar mounting portions 15 are portions that mount the bottom surface portion 10 of the structural body fixture 1 to the underside 32a of the lip groove portion 32 of the T-bar 3. The two T-bar mounting portions 15 are provided on the bottom surface portion 10. More specifically, the two T-bar mounting portions 15 are provided on both end sides of the bottom surface portion 10 in the longitudinal direction W1. The two T-bar mounting portions 15 are disposed in the center of the bottom surface portion 10 in the width direction W2. Each of the two T-bar mounting portions 15 has a hole 151. That is, the bottom surface portion 10 is provided with two holes 151 that function as the two T-bar mounting portions 15. Each of the two holes 151 is a portion through which a first fastening component 20 (e.g., a bolt) is inserted to fasten the bottom surface portion 10 and the underside 32a of the lip groove portion 32 of the T-bar 3. The two holes 151 penetrate the bottom surface portion 10 in the thickness direction W3.

[0027] The holes 151 include a round hole 151a provided in the first bottom surface member 13 and an elongated hole 151b provided in the second bottom surface member 14. The round hole 151a penetrates the first bottom surface member 13 in the thickness direction W3. The elongated hole 151b is an elongated hole that is long in the width direction (width direction W2) of the second bottom surface member 14. The elongated hole 151b penetrates the second bottom surface member 14 in the thickness direction W3. The round hole 151a and the elongated hole 151b overlap each other in the thickness direction W3.

[0028] The five structure fixing portions 16 are portions to which the structure 4 is fixed. The five structure fixing portions 16 are provided on the bottom surface portion 10. More specifically, the five structure fixing portions 16 are provided in a region between the two T-bar mounting portions 15 on the bottom surface portion 10. The five structure fixing portions 16 are arranged along the longitudinal direction W1 of the bottom surface portion 10. The five structure fixing portions 16 are arranged in the center of the bottom surface portion 10 in the width direction W2. Each of the five structure fixing portions 16 has a hole 161. That is, the bottom surface portion 10 is provided with five holes 161 that function as the five structure fixing portions 16. The holes 161 are portions into which third fastening components 22 (e.g., bolts) for fixing the structure 4 to the structure fixing portions 16 are screwed. The holes 161 penetrate the bottom surface portion 10 in the thickness direction W3.

[0029] The holes 161 include a screw hole 161a provided in the first bottom surface member 13 and an elongated hole 161b provided in the second bottom surface member 14. The screw hole 161a penetrates the first bottom surface member 13 in the thickness direction W3. The elongated hole 161b is an elongated hole that is long in the width direction of the second bottom surface member 14 (i.e., the width direction W2). The elongated hole 161b penetrates the second bottom surface member 14 in the thickness direction W3. The screw hole 161a and the elongated hole 161b overlap each other in the thickness direction W3.

[0030] Of the five structure fixing portions 16, structure fixing portion 16A is disposed adjacent to T-bar mounting portion 15. Structure fixing portion 16A does not overlap with projected rotation area Q1 of bottom surface portion 10 in the vertical direction (thickness direction W3). Note that projected rotation area Q1 of the bottom surface portion 10 is an area obtained by projecting a shadow of a head 20t of a first fastening component 20 (bolt) described below, which is inserted into hole 151 of T-bar mounting portion 15, onto a main surface (e.g., the upper surface) of the bottom surface portion 10 when the head 20t is rotated about its central axis. The fact that structure fixing portion 16A does not overlap with projected rotation area Q1 of the bottom surface portion 10 in the vertical direction means that when the first fastening component 20 inserted into hole 151 of T-bar mounting portion 15 is rotated to fasten with a second fastening component 21 (nut) described below, the head 20t of the first fastening component 20 does not interfere with structure fixing portion 16A. This makes it possible to prevent the head 20t of the first fastening component 20 inserted through the hole 151 of the T-bar mounting portion 15 from interfering with the hole 161 of the structure fixing portion 16A.

[0031] The first side surface portion 11 and the second side surface portion 12 are portions that face the side surfaces 32b on both sides of the lip groove portion 32 of the T-bar 3 (i.e., the outer main surfaces of the side plate portions 34 on both sides). The first side surface portion 11 and the second side surface portion 12 protrude upward from both ends of the bottom surface portion 10 in the width direction W2.

[0032] More specifically, the first side surface portion 11 protrudes upward from an end 13a on one side (the left side in FIG. 4) of the first bottom surface member 13 in the width direction W2. The first side surface portion 11 is provided on at least a portion of the end 13a of the first bottom surface member 13 in the longitudinal direction W1. In the example of FIG. 4, the first side surface portion 11 is provided across an intermediate portion 13c of the end 13a of the first bottom surface member 13 in the longitudinal direction W1, excluding both end portions 13b. In other words, in the width direction (width direction W2) of the first bottom surface member 13, the first side surface portion 11 is provided so as not to overlap the two T-bar mounting portions 15 (two round holes 151a) but to overlap the five structure fixing portions 16 (five screw holes 161a).

[0033] The second side surface portion 12 protrudes upward from the end 14a on the other side in the width direction W2 of the second bottom surface member 14 (the right side in FIG. 4). The second side surface portion 12 is provided on at least a portion of the end 14a of the second bottom surface member 14 in the longitudinal direction W1. In the example of FIG. 4, the second side surface portion 12 is provided across an intermediate portion 14c of the end 14a of the second bottom surface member 14 in the longitudinal direction W1, excluding both end portions 14b. In other words, in the width direction (width direction W2) of the second bottom surface member 14, the second side surface portion 12 is provided so as not to overlap with the two T-bar mounting portions 15 (two elongated holes 151b) but to overlap with the five structure fixing portions 16 (five elongated holes 161b).

[0034] The length L1 in the up-down direction (thickness direction W3) of the first side surface portion 11 is shorter than the length d2 (see FIG. 2) in the up-down direction of the side surface 32b of the lip groove portion 32 of the T-bar 3. In other words, when the structural body fixture 1 is attached to the lower surface 32a of the lip groove portion 32 of the T-bar 3, the upper end 11a of the first side surface portion 11 does not abut against the top surface 62a (see FIG. 2) of the step portion 62 of the ceiling panel 6. Similarly, the length L2 in the up-down direction (thickness direction W3) of the second side surface portion 12 is shorter than the length d2 (see FIG. 2) in the up-down direction of the side surface 32b of the lip groove portion 32 of the T-bar 3. In other words, when the structural body fixture 1 is attached to the lower surface 32a of the lip groove portion 32 of the T-bar 3, the upper end 12a of the second side surface portion 12 does not abut against the top surface 62a (see FIG. 2) of the step portion 62 of the ceiling panel 6.

[0035] In the first embodiment, the first bottom surface member 13 and the first side surface portion 11, which are formed integrally, constitute a first component part 25. Furthermore, the second bottom surface member 14 and the second side surface portion 12, which are formed integrally, constitute a second component part 26. In other words, the structural body fixture 1 comprises the first component part 25 and the second component part 26.

[0036] The first fastening component 20 is a component, such as a bolt, for fixing the T-bar mounting portion 15 to the underside 32a of the lip groove portion 32 of the T-bar 3. The second fastening component 21 is a component, such as a nut, and more specifically, a nut that is cross-shaped in plan view, for example, that fastens to the first fastening component 20. The second fastening component 21 is disposed within the lip groove portion 32 of the T-bar 3. The first fastening component 20 is inserted from the underside of the bottom surface portion 10 through the holes 151 (the elongated holes 151b and the round holes 151a) of the T-bar mounting portion 15 and through the gap S2 in the underside 32a of the lip groove portion 32 of the T-bar 3, and is inserted into the lip groove portion 32, where it is fastened to the second fastening component 21 disposed within the lip groove portion 32.

[0037] The third fastening part 22 is a part, such as a bolt, for fixing the structure 4 to the underside 10a of the bottom surface part 10 of the structure fixture 1. The third fastening part 22 is inserted from the underside of an upper wall part 51 (described later) of the structure 4 (for example, the lighting fixture 5) through a mounting hole 52 (described later) in the upper wall part 51 and an elongated hole 161b in the second bottom surface member 14, in that order, and is screwed into the screw hole 161a in the first bottom surface member 13.

[0038] In this structure fixture 1, the hole 151 of the T-bar mounting portion 15 and the hole 161 of the structure fixing portion 16 are provided as elongated holes 151b, 161b in the second bottom surface member 14, respectively. Therefore, even when the first fastening component 20 is inserted through the hole 151 in the bottom surface portion 10 and the third fastening component 22 is inserted through the hole 161 in the bottom surface portion 10, the second bottom surface member 14 can be displaced relative to the first bottom surface member 13 within the range of the openings of the elongated holes 151b, 161b. This makes it possible to adjust the distance between the first side surface portion 11 and the second side surface portion 12 (i.e., the width between the end 13a of the first bottom surface member 13 and the end 14a of the second bottom surface member 14) in accordance with the width of the lip groove portion 32 of the T-bar 3 in the width direction (thickness direction X1).

[0039] (2-3) Installation procedure for structural fixture 1 2 and 3, a procedure for attaching a lighting fixture 5 as a structure 4 to the underside 32a of the lip groove portion 32 of the T-bar 3 using the structure fixture 1 will be described. As shown in FIG. 3, the lighting fixture 5 has an upper wall portion 51, and the upper wall portion 51 has five mounting holes 52 (e.g., round holes) corresponding to the five structure fixing portions 16 of the structure fixture 1.

[0040] First, with reference to FIG. 2, the procedure for attaching the structural body fixture 1 to the lower surface 32a of the lip groove portion 32 of the T-bar 3 will be described.

[0041] First, the first component 25 of the structural body fixture 1 is placed on the underside 32a of the lip groove portion 32. More specifically, the first side surface portion 11 of the first component 25 is inserted into the gap S3 between the side surface 32b on one side (the left side in FIG. 2) of the lip groove portion 32 and the inner side surface 62b of the step portion 62 on said one side of the lip groove portion 32, and the first bottom surface member 13 of the first component 25 is placed on the underside 32a of the lip groove portion 32. Then, the second component 26 of the structural body fixture 1 is placed on the underside 32a of the lip groove portion 32, with the first component 25 sandwiched between them. More specifically, the second side surface portion 12 of the second component 26 is inserted into the gap S4 between the side surface 32b on the other side (the right side in FIG. 2) of the lip groove portion 32 and the inner side surface 62b of the stepped portion 62 on the other side of the lip groove portion 32, and the second bottom surface member 14 of the second component 26 is placed on the lower surface 32a of the lip groove portion 32 with the first bottom surface member 13 sandwiched therebetween. In this positioning state, the two elongated holes 151b of the second bottom surface member 14 overlap in the vertical direction with the two round holes 151a of the first bottom surface member 13. Furthermore, the five elongated holes 161b of the second bottom surface member 14 overlap in the vertical direction with the five screw holes 161a of the first bottom surface member 13 (see FIG. 3).

[0042] At this time, the distance between the first side surface portion 11 and the second side surface portion 12 (i.e., the width in the width direction W2 on the bottom surface portion 10) is automatically determined depending on the width in the width direction (thickness direction X1) of the lip groove portion 32. As a result, in the case of the round hole 151a and the elongated hole 151b that overlap in the vertical direction, the relative position of the round hole 151a within the opening range of the elongated hole 151b when viewed from the top and bottom is also automatically determined depending on the width in the width direction of the lip groove portion 32. Similarly, in the case of the screw hole 161a and the elongated hole 161b that overlap in the vertical direction, the relative position of the screw hole 161a within the opening range of the elongated hole 161b when viewed from the top and bottom is also automatically determined depending on the width in the width direction of the lip groove portion 32.

[0043] Then, the two T-bar mounting portions 15 on the bottom surface portion 10 of the structural body fixture 1 are fixed to the underside 32a of the lip groove portion 32 of the T-bar 3 by first fastening parts 20 (e.g., bolts) and second fastening parts 21 (e.g., nuts having a cross shape in a plan view). Specifically, the T-bar mounting portions 15 on the bottom surface portion 10 are fixed to the underside 32a of the lip groove portion 32 by the first fastening parts 20 and the second fastening parts 21 as follows.

[0044] That is, first, the second fastening part 21 is placed inside the lip groove portion 32 through the gap S2 on the lower surface 32a of the lip groove portion 32 of the T-bar 3.

[0045] Then, the first fastening component 20 is inserted from the underside of the second bottom surface member 14 through the elongated hole 151b of the second bottom surface member 14 and the round hole 151a of the first bottom surface member 13 in that order, and further through the gap S2 in the underside 32a of the lip groove portion 32, and fastened to the second fastening component 21 (nut) arranged in the lip groove portion 32. By performing the same fastening as this on the remaining T-bar mounting portions 15, the bottom surface portion 10 (first bottom surface member 13 and second bottom surface member 14) of the structural body mounting fixture 1 is fixed to the underside 32a of the lip groove portion 32 by the first fastening component 20 and the second fastening component 21.

[0046] In this fixed state, the first side surface portion 11 of the first component 25 faces the side surface 32b on one side of the lip groove portion 32 (i.e., the outer main surface of the side plate portion 34 on one side), and the upper end 11a of the first side surface portion 11 of the first component 25 does not contact the top surface 62a of the step portion 62 of the ceiling panel 6 on one side. In addition, the second side surface portion 12 of the second component 26 faces the side surface 32b on the other side of the lip groove portion 32 (i.e., the outer main surface of the side plate portion 34 on the other side), and the upper end 12a of the second side surface portion 12 of the second component 26 does not contact the top surface 62a of the step portion 62 of the ceiling panel 6 on the other side.

[0047] 3, the lighting fixture 5 is attached to the underside 10a of the bottom portion 10 of the structural fixture 1 (i.e., the underside 14d of the second bottom member 14). More specifically, the upper wall portion 51 of the lighting fixture 5 is fixed to the five structural fixing portions 16 of the bottom portion 10 of the structural fixture 1 with five third fastening parts 22.

[0048] That is, one third fastening part 22 is inserted from the underside of the upper wall portion 51 of the lighting fixture 5 through one mounting hole 52 of the upper wall portion 51 and one elongated hole 151b of the second bottom surface member 14, in that order, and then screwed into one screw hole 161a of the first bottom surface member 13 to fasten. The same fastening is performed on the remaining four mounting holes 52 of the upper wall portion 51 of the lighting fixture 5, thereby attaching the lighting fixture 5 to the underside 10a of the bottom surface portion 10 of the structural body fixture 1.

[0049] In this mounted state, the weight of the lighting fixture 5 widens the gap S2 between the pair of flanges 35 of the lip groove portion 32 of the T-bar 3, causing the pair of side plate portions 34 of the lip groove portion 32 to tend to open outward. However, the first side surface portion 11 and the second side surface portion 12 of the structural body fixture 1 prevent the pair of side plate portions 34 from opening outward. This prevents the gap S2 between the pair of flanges 35 from widening. Therefore, the weight of the lighting fixture 5 prevents the second fastening component 21 in the lip groove portion 32 from falling out downward from the lip groove portion 32. As a result, the structural body fixture 1 mounts the lighting fixture 5 to the underside 32a of the lip groove portion 32.

[0050] (2-4) Effects The structural fixture 1 according to embodiment 1 is a structural fixture for attaching a structural body 4 to a T-bar 3 of a system ceiling 2. The structural fixture 1 comprises a bottom surface portion 10 and a pair of side surfaces 11, 12. The bottom surface portion 10 faces the lower surface 32a of the lip groove portion 32. The pair of side surfaces 11, 12 protrude upward from both ends of the bottom surface portion 10 and face the side plate portions 34 on both sides of the lip groove portion 32. The bottom surface portion 10 has a T-bar attaching portion 15 and a structural body fixing portion 16. The T-bar attaching portion 15 is attached to the lower surface 32a of the lip groove portion 32. The structural body 4 is fixed to the structural body fixing portion 16.

[0051] According to this configuration, the structural fixture 1 can be used to attach the structural body 4 below the lip groove portion 32 at the bottom of the T-bar 3 of the system ceiling 2. At that time, the pair of side surface portions 11, 12 can prevent the side plate portions 34 on both sides of the lip groove portion 32 from opening outward due to the weight of the structural body 4.

[0052] Furthermore, in the structural body fixture 1 according to embodiment 1, the bottom surface portion 10 includes a T-bar mounting portion 15, and further has two T-bar mounting portions 15 provided on both ends of the bottom surface portion 10 in the longitudinal direction W1. The structural body fixing portion 16 is provided in the area between the two T-bar mounting portions 15 on the bottom surface portion 10.

[0053] According to this configuration, the T-bar mounting portion 15 includes two T-bar mounting portions 15 provided on both ends of the bottom surface portion 10 in the longitudinal direction W1, and therefore the two T-bar mounting portions 15 enable the structural body fixture 1 to be stably fixed to the underside 32a of the lip groove portion 32 of the T-bar 3. Furthermore, since the structural body fixing portion 16 is provided in the area between the two T-bar mounting portions 15 on the bottom surface portion 10, the area between the two T-bar mounting portions 15 on the bottom surface portion 10 can be used to position the structural body fixing portion 16.

[0054] Furthermore, in the structure fixture 1 according to embodiment 1, the structure fixing portion 16 has a screw hole 161a. The screw hole 161a is provided so as to penetrate the bottom surface portion 10 in the thickness direction W3. A third fastening component 22 for fixing the structure 4 to the lower surface 10a of the bottom surface portion 10 is screwed into the screw hole 161a. With this configuration, the structure fixing portion 16 can be configured with a simple structure such as the screw hole 161a.

[0055] Furthermore, in the structural body fixture 1 according to embodiment 1, the T-bar mounting portion 15 has a hole 151. The hole 151 is provided so as to penetrate the bottom surface portion 10 in the thickness direction W3. A first fastening component 20 for fixing the bottom surface portion 10 to the lower surface 32a of the lip groove portion 32 is inserted through the hole 151. According to this configuration, the T-bar mounting portion 15 can be configured with a simple structure such as the hole 151.

[0056] Furthermore, in the structure fastener 1 according to embodiment 1, the structure fixing portion 16A adjacent to the T-bar mounting portion 15 does not overlap with the projected rotation area Q1 in the vertical direction. The projected rotation area Q1 is the projected rotation area of ​​the head 20t of the first fastening component 20 inserted into the hole 151 of the T-bar mounting portion 15 on the bottom surface portion 10. This configuration makes it possible to prevent the head 20t of the fastening component 20 inserted into the hole 151 of the T-bar mounting portion 15 from interfering with the structure fixing portion 16.

[0057] Furthermore, in the structural body fixture 1 according to embodiment 1, the lengths L1, L2 of each of the pair of side surface portions 11, 12 in the vertical direction (thickness direction W3) are shorter than the length d2 of each of the side plate portions 34 on both sides of the lip groove portion 32 in the vertical direction. This configuration makes it possible to prevent the upper ends 11a, 12a of each of the pair of side surface portions 11, 12 from contacting the ceiling panel 6. This makes it possible to prevent the weight of the ceiling panel 6 from being applied to the upper ends 11a, 12a of each of the pair of side surface portions 11, 12.

[0058] Furthermore, in the structural body fixture 1 according to embodiment 1, the pair of side surfaces 11, 12 include a first side surface portion 11 and a second side surface portion 12. The bottom surface portion 10 includes a first bottom surface member 13 and a second bottom surface member 14. The first bottom surface member 13 protrudes from the lower end of the first side surface portion 11 toward the second side surface portion 12. The second bottom surface member 14 protrudes from the lower end of the second side surface portion 12 toward the first side surface portion 11 and is disposed overlapping the underside of the first surface portion. In the opposing direction between the first side surface portion 11 and the second side surface portion 12, the second bottom surface member 14 shifts relative to the first bottom surface member 13, thereby changing the distance between the first side surface portion 11 and the second side surface portion 12.

[0059] According to this configuration, the distance between the first side surface portion 11 and the second side surface portion 12 can be adjusted by the relative displacement between the first bottom surface member 13 and the second bottom surface member 14 in the opposing direction of the first side surface portion 11 and the second side surface portion 12. As a result, even if the width (width in the opposing direction) of the lip groove portion 32 of the T-bar 3 is not constant, the pair of side surface portions 11, 12 can be appropriately positioned on both sides of the lip groove portion 32 (i.e., the pair of side surface portions 11, 12 can be positioned as close as possible to both sides of the lip groove portion 32).

[0060] Furthermore, in the structure fixture 1 according to embodiment 1, the T-bar mounting portion 15 includes a round hole 151a and an elongated hole 151b. The round hole 151a is provided in the first bottom surface member 13. The elongated hole 151b is provided in the second bottom surface member 14. The elongated hole 151b overlaps with the round hole 151a in the up-down direction (thickness direction W3). The elongated hole 151b extends in the width direction W2 of the bottom surface portion 10. Fastening components 20 for mounting the bottom surface portion 10 to the lower surface 32a of the lip groove portion 32 can be inserted into the round hole 151a and the elongated hole 151b. With this configuration, the distance between the first side surface portion 11 and the second side surface portion 12 can be easily adjusted by changing the relative position of the round hole 151a with respect to the elongated hole 151b within the opening range of the elongated hole 151b.

[0061] Moreover, in the structural body fixture 1 according to embodiment 1, the structural body 4 is a lighting fixture 5. According to this configuration, the structural body fixture 1 can be used to attach the lighting fixture 5 as the structural body 4 to the underside 32a of the lip groove portion 32 of the T-bar 3.

[0062] (3) Variations The following are examples of modifications of embodiment 1. The modifications explained below can be implemented in appropriate combinations.

[0063] (3-1) Variation 1 As shown in FIG. 5, the structure fixture 1 according to Modification 1 is configured in the same manner as the structure fixture 1 according to Embodiment 1, except that it further includes a sheet member 40.

[0064] The sheet member 40 is disposed between the lower surface 32a of the lip groove portion 32 of the T-bar 3 and the upper surface 10u of the bottom surface portion 10 (i.e., the upper surface 13u of the first bottom surface member 13). The sheet member 40 is formed in a sheet shape from an elastic member such as rubber. The shape of the sheet member 40 in a plan view is, for example, a rectangular shape having the same shape and size as the shape (e.g., a rectangular shape) of the upper surface 10u of the bottom surface portion 10. The shape of the sheet member 40 in a plan view may be a rectangular shape that is larger than the upper surface 10u of the bottom surface portion 10, or a rectangular shape that is smaller than the upper surface 10u of the bottom surface portion 10.

[0065] The sheet member 40 has holes 40a through which the first fastening part 20 or the third fastening part 22 is inserted, at portions corresponding to the holes 151 of the T-bar mounting part 15 of the bottom surface part 10 and the holes 161 of the structure fixing part 16. The sheet member 40 prevents slippage from occurring between the lower surface 32a of the lip groove part 32 of the T-bar 3 and the upper surface 10u of the bottom surface part 10, and prevents the lower surface 32a of the lip groove part 32 and the upper surface 10u of the bottom surface part 10 from contacting each other and damaging each other.

[0066] The structural body fixture 1 according to the first modification further includes a sheet member 40 disposed between the lip groove portion 32 and the bottom surface portion 10. With this configuration, the sheet member 40 can prevent direct contact between the lip groove portion 32 and the bottom surface portion 10. This can prevent slippage between the lower surface 32a of the lip groove portion 32 of the T-bar 3 and the upper surface 10u of the bottom surface portion 10. It can also prevent the lower surface 32a of the lip groove portion 32 and the upper surface 10u of the bottom surface portion 10 from contacting each other and damaging each other.

[0067] The sheet member 40 may extend to between the first side surface portion 11 or the second side surface portion 12 and the side surface 32b of the lip groove portion 32. In this way, the sheet member 40 further suppresses slippage between the first side surface portion 11 or the second side surface portion 12 and the side surface 32b of the lip groove portion 32, and suppresses damage to each other due to contact between the first side surface portion 11 or the second side surface portion 12 and the side surface 32b of the lip groove portion 32.

[0068] (3-2) Variation 2 As shown in Figure 6, the structural fixture 1 of variant example 2 is configured in the same way as the structural fixture 1 of embodiment 1, except that the first side portion 11 and the second side portion 12 are inclined in the opposing direction of the first side portion 11 and the second side portion 12 (i.e., inward).

[0069] More specifically, the first side surface portion 11 is inclined inward at a predetermined angle α1 (e.g., an angle less than 1 degree) with respect to an orthogonal direction H1 perpendicular to the upper surface 13u of the first bottom surface member 13 (i.e., a direction perpendicular to the upper surface 10u of the bottom surface portion 10). Similarly, the second side surface portion 12 is inclined inward at a predetermined angle β1 (e.g., an angle less than 1 degree) with respect to an orthogonal direction H1 perpendicular to the upper surface 14u of the second bottom surface member 14 (i.e., a direction perpendicular to the upper surface 10u of the bottom surface portion 10). The orthogonal direction H1 is a direction perpendicular to the upper surface 10u of the bottom surface portion 10.

[0070] In the structural body fixture 1 according to the second modification, the pair of side surface portions 11, 12 are inclined in the opposing direction of the pair of side surface portions 11, 12. This configuration makes it possible to prevent the upper ends 11a, 12a of the pair of side surface portions 11, 12 from coming into contact with the ceiling panel 6 arranged around the lip groove portion 32 and damaging the ceiling panel 6.

[0071] (3-3) Variation 3 In the first embodiment, the first side surface portion 11 is formed only in the middle portion 13c of the end 13a of the first bottom surface member 13, and the second side surface portion 12 is formed only in the middle portion 14c of the end 14a of the second bottom surface member 14. However, the first side surface portion 11 may be formed over the entire end 13a of the first bottom surface member 13 in the longitudinal direction W1. Similarly, the second side surface portion 12 may be formed over the entire end 14a of the second bottom surface member 14 in the longitudinal direction W1. This improves the strength of the connecting portion between the first side surface portion 11 and the first bottom surface member 13, and the strength of the connecting portion between the second side surface portion 12 and the second bottom surface member 14. Therefore, the first side surface portion 11 is less likely to collapse outward relative to the first bottom surface member 13, and the second side surface portion 12 is less likely to collapse outward relative to the second bottom surface member 14. As a result, the first side surface portion 11 and the second side surface portion 12 can more effectively prevent the side plate portions 34 on both sides of the lip groove portion 32 from opening outward due to the weight of the structure 4.

[0072] (3-4) Variation 4 In the first embodiment, the first fastening component 20 is a bolt and the second fastening component 21 is a nut. However, the first fastening component 20 may be a nut and the second fastening component 21 may be a bolt. In this case, the second fastening component 21 (bolt) is inserted from the inside of the lip groove portion 32 through the gap S2 between the pair of flange portions 35 of the lip groove portion 32, and further inserted sequentially through the round hole 151a of the first bottom surface member 13 and the elongated hole 161b of the second bottom surface member 14, and fastened to the first fastening component 20 (nut) on the underside of the second bottom surface member 14. In this way, the first fastening component 20 and the second fastening component 21 fix the T-bar mounting portion 15 of the bottom surface portion 10 of the structural body fixture 1 to the underside 32a of the lip groove portion 32 of the T-bar 3. The fourth modification can also achieve the same effect as the first embodiment.

[0073] (3-5) Variation 5 In the first embodiment, a hemming bend may be formed at the upper end 11a of the first side surface portion 11 by folding back the upper end 11a. Similarly, a hemming bend may be formed at the upper end 12a of the second side surface portion 12 by folding back the upper end 12a. This prevents the upper end 11a of the first side surface portion 11 or the upper end 12a of the second side surface portion 12 from damaging the side surface 32b of the lip groove portion 32 of the T-bar 3.

[0074] (3-6) Variation 6 In Modification 6, a round hole is provided in place of the screw hole 161a of the structure fixing portion 16 in Embodiment 1. That is, in Modification 6, the structure fixing portion 16 has a round hole and an elongated hole 161b. The round hole is provided so as to penetrate the first bottom surface member 13 in the thickness direction W3. In Modification 6, the third fastening component 22 (bolt) is inserted from below the upper wall portion 51 of the lighting fixture 5 through the mounting hole 52 of the upper wall portion 51, the elongated hole 161b of the second bottom surface member 14, and the round hole of the first bottom surface member 13, and is fastened to the fourth fastening component (nut) disposed in the lip groove portion 32. As a result, the lighting fixture 5 is fixed to the lower surface 10a of the bottom surface portion 10 of the structure fixture 1 (the lower surface 14d of the second bottom surface member 14) by the third fastening component 22 and the fourth fastening component.

[0075] In the structure fixture 1 according to the sixth modification, the structure fixing portion 16 has a hole (a hole formed by the round hole and the elongated hole 161b). The hole is provided so as to penetrate the bottom surface portion 10 in the thickness direction W3. A third fastening component 22 for fixing the structure 4 to the lower surface 10a of the bottom surface portion 10 is inserted through the hole. With this configuration, the structure fixing portion 16 can be formed using a simple structure such as a hole.

[0076] (3-7) Variation 7 In the first embodiment, the structure 4 is a lighting fixture 5. However, the structure 4 may be something other than the lighting fixture 5. For example, as shown in FIG. 7, the structure 4 may be a curtain rail 7. The curtain rail 7 is, for example, a C-shaped (C-shaped cross section) curtain rail.

[0077] More specifically, the C-shaped curtain rail 7 includes an upper plate 73, a pair of side plate portions 74, and a pair of flange portions 75. The upper plate portion 73 constitutes the top plate of the curtain rail 7. The upper plate portion 73 is a long, rectangular, flat plate extending horizontally in a horizontal position. The upper plate portion 73 has at least one mounting hole 76. The mounting hole 76 penetrates the upper plate portion 73 in the thickness direction. The pair of side plate portions 74 are provided so as to protrude downward from both ends of the upper plate portion 73 in the width direction. The pair of side plate portions 74 are provided across the entire longitudinal direction of the upper plate portion 73 (the direction perpendicular to the plane of the paper in FIG. 7). The pair of flange portions 75 correspond to the pair of side plate portions 74 and are provided so as to protrude from the lower ends of the corresponding side plate portions 74 in the opposing direction of the pair of side plate portions 74. The pair of flanges 75 are provided over the entire length of the pair of side plate portions 74 (the direction perpendicular to the paper surface of FIG. 7). The pair of flanges 75 are arranged with a gap between them.

[0078] The curtain rail 7 is attached to the lower surface of the second bottom surface member 14 of the structural body fixture 1 (i.e., the lower surface 10a of the bottom surface portion 10) by inserting the third fastening part 22 (e.g., a bolt) from inside the curtain rail 7 through the mounting hole 76 of the upper plate portion 73 and the elongated hole 161b of the second bottom surface member 14 in that order.

[0079] In the structural body fixture 1 according to the seventh modification, the structural body 4 is a curtain rail 7. According to this configuration, the structural body fixture 1 can be used to attach the curtain rail 7 as the structural body 4 to the underside 32a of the lip groove portion 32 of the T-bar 3.

[0080] (Embodiment 2) Referring to FIG. 8, a structure fixture 1 according to a second embodiment will be described.

[0081] As shown in Figure 8, the structural fixture 1 of embodiment 2 is configured in the same manner as the structural fixture 1 of embodiment 1, except that the pair of side portions (first side portion 11 and second side portion 12) and the bottom portion 10 are integrally formed.

[0082] (1) Configuration explanation The structural body fixture 1 of embodiment 2 comprises a bottom surface portion 10, a pair of side surfaces (a first side surface portion 11 and a second side surface portion 12), a first fastening component 20, a second fastening component 21, and a third fastening component 22.

[0083] The bottom surface portion 10 is a rectangular flat plate arranged in a horizontal position. As in the first embodiment, the bottom surface portion 10 has two T-bar mounting portions 15 and at least one structure fixing portion 16 (three in the example of FIG. 8). The two T-bar mounting portions 15 are arranged on both end sides of the bottom surface portion 10 in the longitudinal direction W1. Each of the two T-bar mounting portions 15 has a round hole 151a. The structure fixing portion 16 is arranged side by side along the longitudinal direction W1 of the bottom surface portion 10. The structure fixing portion 16 has a screw hole 161a.

[0084] The first side surface portion 11 protrudes upward from one end 10p of the bottom surface portion 10 in the width direction W2. The first side surface portion 11 is provided on at least a portion of the one end 10p of the bottom surface portion 10 in the longitudinal direction W1 (in the example of FIG. 8, the entire longitudinal direction W1 at the one end 10p). The second side surface portion 12 protrudes upward from the other end 10q of the bottom surface portion 10 in the width direction W2. The second side surface portion 12 is provided on at least a portion of the other end 10q of the bottom surface portion 10 in the longitudinal direction W1 (in the example of FIG. 8, the entire longitudinal direction W1 at the other end 10q).

[0085] The first fastening component 20 is a component, such as a bolt, for fixing the T-bar mounting portion 15 of the bottom surface portion 10 to the underside 32a of the lip groove portion 32 of the T-bar 3. The second fastening component 21 is a component, such as a nut, that fastens to the first fastening component 20, and more specifically, a nut that is cross-shaped in plan view.

[0086] The third fastening part 22 is a part for fixing the structure 4 to the lower surface 10a of the bottom surface portion 10 of the structural body fixture 1, and is, for example, a bolt.

[0087] (2) Installation procedure for structural fixture 1 9 and 10, the mounting procedure for mounting a lighting fixture 5 as a structure 4 on the underside 32a of the lip groove portion 32 of the T-bar 3 using the structure fixture 1 will be described. As shown in FIG. 10, the lighting fixture 5 has an upper wall portion 51, and the upper wall portion 51 has three mounting holes 52 (e.g., round holes) corresponding to the three structure fixing portions 16 of the structure fixture 1.

[0088] First, with reference to FIG. 9, the procedure for attaching the structural body fixture 1 to the lower surface 32a of the lip groove portion 32 of the T-bar 3 will be described.

[0089] First, the first side surface portion 11 of the structural body fixture 1 is inserted into the gap S3 between the side surface 32b on the first side (left side in FIG. 9) in the width direction (thickness direction X1) of the lip groove portion 32 and the inner side surface 62b of the step portion 62 of the first-side ceiling panel 6. Then, the second side surface portion 12 of the structural body fixture 1 is inserted into the gap S4 between the side surface 32b on the second side (right side in FIG. 9) in the width direction (thickness direction X1) of the lip groove portion 32 and the inner side surface 62b of the step portion 62 of the second-side ceiling panel 6. The second side is the opposite side to the first side in the direction X1. Then, the bottom surface portion 10 of the structural body fixture 1 is placed on the underside 32a of the lip groove portion 32.

[0090] The second fastening component 21 is then placed inside the lip groove component 32 through the gap S2 on the underside 32a of the lip groove component 32 of the T-bar 3. The first fastening component 20 is then inserted from below the bottom component 10 through the round hole 151a in the bottom component 10, and further inserted through the gap S2 on the underside 32a of the lip groove component 32, and fastened to the second fastening component 21 (nut) placed inside the lip groove component 32. The same fastening is performed on the remaining T-bar mounting components 15 (round holes 151a), whereby the bottom component 10 of the structural body mounting fixture 1 is fixed to the underside 32a of the lip groove component 32 by the first fastening component 20 and the second fastening component 21.

[0091] In this fixed state, the first side surface portion 11 faces the side surface 32b (i.e., the side plate portion 34 on the first side) on the first side (the left side in FIG. 9) of the lip groove portion 32, and the upper end 11a of the first side surface portion 11 does not contact the top surface 62a of the step portion 62 on the first side. In addition, the second side surface portion 12 faces the side surface 32b (i.e., the side plate portion 34 on the second side) of the lip groove portion 32, and the upper end 12a of the second side surface portion 12 does not contact the top surface 62a of the step portion 62 on the second side.

[0092] Then, as shown in FIG. 10 , the lighting fixture 5 is attached to the underside 10a of the bottom surface 10 of the structural body fixture 1. More specifically, the upper wall portion 51 of the lighting fixture 5 is fixed to the three structure fixing portions 16 (screw holes 161a) of the bottom surface 10 of the structural body fixture 1 with three third fastening components 22. That is, one third fastening component 22 is inserted from below the upper wall portion 51 of the lighting fixture 5 through one of the mounting holes 52 in the upper wall portion 51 and screwed into one of the screw holes 161a in the bottom surface 10 to fasten the lighting fixture 5. The remaining mounting holes 52 of the lighting fixture 5 are fastened in the same manner, thereby attaching the lighting fixture 5 to the underside 10a of the bottom surface 10 of the structural body fixture 1. In this way, the lighting fixture 5 is attached below the lip groove portion 32 of the T-bar 3 by the structural body fixture 1.

[0093] (3) Effects In the structural body fixture 1 according to the second embodiment, the pair of side surface portions 11, 12 and the bottom surface portion 10 are integrally formed. With this configuration, the structural body fixture 1 can be easily constructed with a small number of parts.

[0094] (4) Variations The following are examples of modifications of embodiment 2. The modifications explained below can be applied in appropriate combinations.

[0095] (4-1) Variation 1 As shown in FIGS. 11 and 12, in the structure fixture 1 according to the second embodiment, the length of the bottom surface portion 10 in the longitudinal direction W1 and the number of structure fixing portions 16 can be changed as appropriate.

[0096] For example, in the example of Fig. 11, the length in the longitudinal direction W1 of the bottom surface portion 10 of the structure fixture 1 is shorter than the length in the longitudinal direction W1 of the bottom surface portion 10 of embodiment 2. Also, in the example of Fig. 11, the number of structure fixing portions 16 of the structure fixture 1 is fewer (for example, one) than the number of structure fixing portions 16 of embodiment 2. Also, in the example of Fig. 11, the distance N1 between the T-bar mounting portion 15 (round hole 151a) and the structure fixing portion 16 (screw hole 161a) on the bottom surface portion 10 is the same size as the distance between the round hole 151a and the screw hole 161a in the second embodiment.

[0097] 12, the length of the bottom surface portion 10 in the longitudinal direction W1 is shorter than that in the example of Fig. 11. Also, in the example of Fig. 12, the distance N1 between the T-bar mounting portion 15 (round hole 151a) and the structure fixing portion 16 (screw hole 161a) is shorter than that in the example of Fig. 11.

[0098] (4-2) Variation 2 (4-2-1) Configuration In the second embodiment, the structure 4 is fixed directly to the underside 10a of the bottom surface 10 of the structure fixture 1. However, as shown in Fig. 13, in the second modification, the structure 4 is fixed to the underside 10a of the bottom surface 10 of the structure fixture 1 via an application tool 8. An example of a structure 4 that can be attached to the structure fixture 1 using the application tool 8 is an emergency light.

[0099] The applicator 8 has an applicator body 81, a plurality of (for example, three) connecting holes 82, and a plurality of (two) connecting portions 83.

[0100] The fixture body 81 has a base plate portion 84 and a pair of side plate portions 85. The base plate portion 84 is a portion that is disposed on the lower surface 10a of the bottom surface portion 10 of the structural body fixture 1. The base plate portion 84 is disposed in a horizontal position and is a flat plate that extends along the longitudinal direction W1 of the bottom surface portion 10 of the structural body fixture 1. The upper surface 84a of the base plate portion 84 is disposed opposite the lower surface 10a of the bottom surface portion 10. The pair of side plate portions 85 are provided so as to protrude downward from both ends of the base plate portion 84 in the width direction (width direction W2). The pair of side plate portions 85 are provided across at least a portion (for example, a central portion in the longitudinal direction) of the base plate portion 84 in the longitudinal direction (longitudinal direction W1) at the above-mentioned ends.

[0101] The multiple connecting holes 82 are portions for fastening the device body 81 of the applicator 8 to the structure fixing portions 16 (screw holes 161a) on the lower surface 10a of the bottom surface portion 10 of the structure fixture 1. The multiple connecting holes 82 penetrate the thickness direction of the base plate portion 84. The multiple connecting holes 82 are arranged at intervals along the longitudinal direction (longitudinal direction W1) of the base plate portion 84. The multiple connecting holes 82 are arranged in the center of the width direction (width direction W2) of the base plate portion 84. The multiple connecting holes 82 correspond one-to-one to the multiple structure fixing portions 16 (screw holes 161a) and are arranged at positions facing the corresponding structure fixing portions 16.

[0102] The multiple connecting portions 83 are portions to which the structures 4 are connected, and are, for example, rod-shaped (for example, male screw-shaped). The multiple connecting portions 83 are provided so as to protrude downward from the lower surface 84b of the substrate portion 84. The multiple connecting portions 83 are arranged at intervals on the lower surface 84b of the substrate portion 84 along the longitudinal direction of the substrate portion 84 (longitudinal direction W1). The multiple connecting portions 83 are arranged in the center of the width direction of the substrate portion 84 (width direction W2).

[0103] (4-2-2) Installation procedure Referring to FIG. 14, the procedure for attaching the structure 4 to the underside 10a of the bottom surface 10 of the structure fixture 1 using the structure fixture 1 and the applicator 8 will be described.

[0104] As shown in FIG. 14 , for example, first, the structural body fixture 1 is fixed to the underside 32a of the lip groove portion 32 of the T-bar 3 using an installation procedure similar to that of embodiment 2. In this fixed state, the applicator 8 is placed under the bottom surface 10 of the structural body fixture 1. Then, in this arranged state, the third fastening component 22 (bolt) is inserted from the underside of the applicator 8 through the connecting hole 82 of the base plate portion 84 and fastened to the structural body fixing portion 16 (screw hole 161a) of the bottom surface 10 of the structural body fixture 1. In this manner, the applicator 8 is attached to the underside 10a of the bottom surface 10 of the structural body fixture 1 by the third fastening component 22. Then, in this attached state, the structural body 4 is connected to the multiple connecting portions 83 of the applicator 8. In this manner, the structural body 4 is attached to the underside 10a of the bottom surface 10 of the structural body fixture 1 via the structural body fixture 1 and the applicator 8.

[0105] In the above explanation, first, the structural body fixture 1 is attached to the underside 32a of the lip groove portion 32 of the T-bar 3. Next, the application device 8 is attached to the underside 10a of the bottom surface portion 10 of the structural body fixture 1. Finally, the structural body 4 is connected to the connecting portion 83 of the application device 8. However, the order in which the structural body fixture 1, application device 8, and structural body 4 are attached is not limited to the above-mentioned order.

[0106] (4-3) Variation 3 In Modification 3, structure fixing portion 16 in Embodiment 2 has a hole (for example, a round hole) instead of screw hole 161a. The hole is provided so as to penetrate bottom surface portion 10 in the thickness direction. In Modification 3, third fastening component 22 (bolt) is inserted from below upper wall portion 51 of lighting fixture 5 through mounting hole 52 in upper wall portion 51 and the hole in bottom surface portion 10, and fastened to fourth fastening component (nut) disposed in lip groove portion 32. As a result, lighting fixture 5 is fixed to underside 10a of bottom surface portion 10 of structural fixture 1 by third fastening component 22 and fourth fastening component.

[0107] In the structural body fixture 1 according to Modification 3, the structural body fixing portion 16 has the above-mentioned hole. The above-mentioned hole is provided so as to penetrate the bottom surface portion 10 in the thickness direction W3. A third fastening component 22 for fixing the structural body 4 to the lower surface 10a of the bottom surface portion 10 is inserted through the above-mentioned hole. With this configuration, the structural body fixing portion 16 can be configured using a simple structure, that is, a hole.

[0108] Although the first and second embodiments and their modifications have been described above, the first and second embodiments and their modifications can be implemented in appropriate combinations.

[0109] (Aspect) The present specification discloses the following aspects.

[0110] The structural fixture (1) according to the first aspect is a structural fixture for attaching a structural body (4) to a T-bar (3) of a system ceiling (2). The structural fixture (1) comprises a bottom surface (10) and a pair of side surfaces (11, 12). The bottom surface (10) faces the lower surface (32a) of the lip groove (32) at the bottom of the T-bar (3). The pair of side surfaces (11, 12) protrude upward from both ends of the bottom surface (10) and face the side plate portions (34) on both sides of the lip groove (32). The bottom surface (10) has a T-bar attachment portion (15) and a structural body fixing portion (16). The T-bar attachment portion (15) is attached to the lower surface (32a) of the lip groove (32). The structural body (4) is fixed to the structural body fixing portion (16).

[0111] According to this configuration, the structural member (4) can be attached to the lower lip groove portion (32) of the T-bar (3) of the system ceiling (2) using the structural member mounting fixture (1). At this time, the pair of side surface portions (11, 12) can prevent the side plate portions (34) on both sides of the lip groove portion (32) from opening outward due to the weight of the structural member (4).

[0112] In the structural body fixture (1) according to the second aspect, in the first aspect, the bottom surface portion (10) includes a T-bar mounting portion (15) and further has two T-bar mounting portions (15) provided on both ends of the bottom surface portion (10) in the longitudinal direction (W1). The structural body fixing portion (16) is provided in the area between the two T-bar mounting portions (15) on the bottom surface portion (10).

[0113] According to this configuration, the structural body mounting fixture (1) can be stably fixed to the underside (32a) of the lip groove portion (32) of the T-bar (3) by the two T-bar mounting portions (15) provided on both ends of the bottom surface portion (10) in the longitudinal direction (W1). In addition, since the structural body fixing portion (16) is provided in the area between the two T-bar mounting portions (15) on the bottom surface portion (10), the structural body fixing portion (16) can be arranged using the area between the two T-bar mounting portions (15) on the bottom surface portion (10).

[0114] In the structural body mounting tool (1) according to the third aspect, the structural body fixing portion (16) in the first aspect has a screw hole (161a). The screw hole (161a) is provided so as to penetrate the bottom surface portion (10) in the thickness direction (W3). A fastening part (22) for fixing the structural body (4) to the lower surface (10a) of the bottom surface portion (10) is screwed into the screw hole (161a).

[0115] According to this configuration, the structure fixing portion (16) can be configured using a simple structure such as the screw hole (161a).

[0116] In the structural body mounting fixture (1) according to the fourth aspect, in the first aspect, the structural body fixing portion (16) has a hole. The hole is provided so as to penetrate the bottom surface portion (10) in the thickness direction (W3). A fastening part (22) for fixing the structural body (4) to the underside (10a) of the bottom surface portion (10) is inserted through the hole.

[0117] According to this configuration, the structural body fixing portion (16) can be configured using a simple structure such as a hole.

[0118] In the structural body fixture (1) according to the fifth aspect, in any one of the first to fourth aspects, the T-bar mounting portion (15) has a hole (151). The hole (151) is provided so as to penetrate the bottom surface portion (10) in the thickness direction (W3). A fastening part (21) for fixing the bottom surface portion (10) to the lower surface (32a) of the lip groove portion (32) is inserted through the hole (151).

[0119] According to this configuration, the T-bar attachment portion (15) can be configured by a simple structure of the hole (151).

[0120] In the structural body fixture (1) according to the sixth aspect, in the fourth or fifth aspect, the structural body fixing portion (16A) adjacent to the T-bar mounting portion (15) does not overlap with the projected rotation area (Q1) in the vertical direction. The projected rotation area (Q1) is the projected rotation area of ​​the head (20t) of the fastening part (20) inserted into the hole (151) of the T-bar mounting portion (15) on the bottom surface portion (10).

[0121] According to this configuration, the head 20t of the fastening part 20 inserted into the hole 151 of the T-bar mounting portion 15 can be prevented from interfering with the structure fixing portion 16.

[0122] The structural body fixture (1) according to the seventh aspect is any one of the first to sixth aspects, and further comprises a sheet member (40) arranged between the lip groove portion (32) and the bottom surface portion (10).

[0123] According to this configuration, the sheet member 40 can prevent direct contact between the lip groove portion 32 and the bottom surface portion 10. This can prevent slippage between the lower surface 32a of the lip groove portion 32 of the T-bar 3 and the upper surface 10u of the bottom surface portion 10. It can also prevent the lower surface 32a of the lip groove portion 32 and the upper surface 10u of the bottom surface portion 10 from contacting each other and damaging each other.

[0124] In the structural body mounting fixture (1) according to the eighth aspect, in any one of the first to seventh aspects, the vertical length (L1, L2) of each of the pair of side portions (11, 12) (thickness direction W3) is shorter than the vertical length (d2) of the side plate portions (34) on both sides of the lip groove portion (32).

[0125] This configuration can prevent the upper ends (11a, 12a) of the pair of side portions (11, 12) from coming into contact with the ceiling panel (6), thereby preventing the weight of the ceiling panel (6) from being applied to the upper ends (11a, 12a) of the pair of side portions (11, 12).

[0126] The structural body fixture (1) according to the ninth aspect is the same as any one of the first to eighth aspects, in which the pair of side surfaces (11, 12) are inclined in the opposing direction of the pair of side surfaces (11, 12).

[0127] This configuration can prevent the upper ends (11a, 12a) of the pair of side surfaces (11, 12) from coming into contact with the ceiling panel (6) arranged around the lip groove portion (32) and damaging the ceiling panel (6).

[0128] A structural body fixture (1) according to a tenth aspect is any one of the first to ninth aspects, wherein the pair of side surfaces (11, 12) includes a first side surface (11) and a second side surface (12). The bottom surface (10) includes a first bottom surface member (13) and a second bottom surface member (14). The first bottom surface member (13) protrudes from the lower end of the first side surface (11) toward the second side surface (12). The second bottom surface member (14) protrudes from the lower end of the second side surface (12) toward the first side surface (11) and is disposed overlapping the underside of the first surface member. In the opposing direction between the first side surface (11) and the second side surface (12), the second bottom surface member (14) shifts relative to the first bottom surface member (13), thereby changing the distance between the first side surface (11) and the second side surface (12).

[0129] According to this configuration, the distance between the first side surface portion (11) and the second side surface portion (12) can be adjusted by the relative displacement between the first bottom surface member (13) and the second bottom surface member (14) in the opposing direction of the first side surface portion (11) and the second side surface portion (12). As a result, even if the width (width in the opposing direction) of the lip groove portion (32) of the T-bar (3) is not constant, the pair of side surface portions (11, 12) can be appropriately positioned on both sides of the lip groove portion (32) (i.e., the pair of side surface portions (11, 12) can be positioned close to both sides of the lip groove portion (32)).

[0130] In a structural body fixture (1) according to an eleventh aspect, in the tenth aspect, the T-bar mounting portion (15) includes a round hole (151a) and an elongated hole (151b). The round hole (151a) is provided in the first bottom surface member (13). The elongated hole (151b) is provided in the second bottom surface member (14). The elongated hole (151b) overlaps with the round hole (151a) in the up-down direction (thickness direction W3). The elongated hole (151b) extends in the width direction (W2) of the bottom surface portion (10). Fastening components (20) for mounting the bottom surface portion (10) to the underside (32a) of the lip groove portion (32) can be inserted into the round hole (151a) and the elongated hole (151b).

[0131] According to this configuration, the distance between the first side surface portion (11) and the second side surface portion (12) can be easily adjusted by changing the relative position of the round hole (151a) with respect to the elongated hole (151b) within the opening range of the elongated hole (151b).

[0132] In the structural body fixture (1) according to the twelfth aspect, in any one of the first to tenth aspects, the pair of side surface portions (11, 12) and the bottom surface portion (10) are integrally formed.

[0133] According to this configuration, the structural body fixture (1) can be easily constructed with a small number of parts.

[0134] In the structural body fixture (1) according to a thirteenth aspect, in any one of the first to twelfth aspects, the structural body (4) is a lighting fixture (5).

[0135] According to this configuration, the structural body fixture (1) can be used to attach the lighting fixture (5) as the structural body (4) to the underside (32a) of the lip groove portion (32) of the T-bar (3).

[0136] In the structural body fixture (1) according to a fourteenth aspect, in any one of the first to twelfth aspects, the structural body (4) is a curtain rail (7).

[0137] According to this configuration, the structural body fixture (1) can be used to attach the curtain rail (7) as the structural body (4) to the underside (32a) of the lip groove portion (32) of the T-bar (3). [Explanation of symbols]

[0138] 1 Structural mounting fixture 2 System ceiling 3 T-bar 4 Structure 5. Lighting fixtures 7. Curtain rail 10 Bottom part 10a Bottom side 11 First side part 11a Top end 12 Second side part 12a top end 15 T-bar mounting part 16,16A Structure fixing part 20 First fastening part (fastening part) 20t head 22 Third fastening part (fastening part) 32 Lip groove 32a Bottom side 34 Side plate part 40 Sheet material 151 holes 151a Round hole 161a screw hole d2 Length of side panel L1 Side length Q1 Projected Rotational Region W1 Longitudinal direction W2 Width direction W3 thickness direction

Claims

1. A structural attachment tool for attaching a structural body to a T-bar of a system ceiling, a bottom surface portion facing the lower surface of the lip groove portion at the lower part of the T-bar; a pair of side surface portions protruding upward from both ends of the bottom surface portion and facing the side plate portions on both sides of the lip groove portion; The bottom surface portion is a T-bar mounting portion attached to the lower surface of the lip groove portion; a structure fixing portion to which the structure is fixed, Structural mounting fixture.

2. the bottom surface portion includes the T-bar mounting portion and further has two T-bar mounting portions provided on both ends of the bottom surface portion in the longitudinal direction, The structural body fixing portion is provided in a region between the two T-bar mounting portions on the bottom surface portion. The structural fixture according to claim 1 .

3. the structural body fixing portion is provided so as to penetrate the bottom surface portion in a thickness direction, and has a screw hole into which a fastening component for fixing the structural body to the lower surface of the bottom surface portion is screwed. The structural fixture according to claim 1 .

4. the structural body fixing portion is provided so as to penetrate the bottom surface portion in a thickness direction, and has a hole through which a fastening component for fixing the structural body to the lower surface of the bottom surface portion is inserted. The structural fixture according to claim 1 .

5. The T-bar mounting portion is provided to penetrate the bottom surface portion in a thickness direction, and has a hole through which a fastening component for fixing the bottom surface portion to the lower surface of the lip groove portion is inserted. The structural body fixture according to any one of claims 1 to 4.

6. the structure fixing portion adjacent to the T-bar mounting portion does not overlap in the vertical direction with a projected rotation area of ​​the head of the fastening component inserted into the hole of the T-bar mounting portion on the bottom surface portion; The structural fixture according to claim 4 .

7. Further, a sheet member is provided between the lip groove portion and the bottom surface portion. The structural body fixture according to any one of claims 1 to 4.

8. The vertical length of each of the pair of side surface portions is shorter than the vertical length of the side plate portions on both sides of the lip groove portion. The structural body fixture according to any one of claims 1 to 4.

9. The pair of side surfaces are inclined in opposing directions of the pair of side surfaces. The structural body fixture according to any one of claims 1 to 4.

10. the pair of side surfaces include a first side surface and a second side surface, The bottom surface portion is a first bottom surface member protruding from a lower end of the first side surface portion toward the second side surface portion; a second bottom surface member that protrudes from a lower end of the second side surface portion toward the first side surface portion and is disposed under and overlaps the first bottom surface member, The second bottom surface member is displaced relative to the first bottom surface member in the opposing direction of the first side surface portion and the second side surface portion, thereby changing the distance between the first side surface portion and the second side surface portion. The structural body fixture according to any one of claims 1 to 4.

11. The T-bar mounting portion is a round hole provided in the first bottom member; a long hole provided in the second bottom surface member, the long hole overlaps with the round hole in the up-down direction and extends in the width direction of the bottom surface portion, A fastening component for attaching the bottom surface portion to the lower surface of the lip groove portion can be inserted into the round hole and the elongated hole. The structural fixture according to claim 10.

12. The pair of side surfaces and the bottom surface are integrally formed. The structural body fixture according to any one of claims 1 to 4.

13. The structure is a lighting fixture. The structural body fixture according to any one of claims 1 to 4.

14. The structure is a curtain rail. The structural body fixture according to any one of claims 1 to 4.

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