Underground structure of the courtyard

Abstract

To provide a ceiling foundation structure capable of improving workability during construction.SOLUTION: A ceiling foundation structure 200 includes: a long ceiling joist 5; a ceiling joist receiver 4 that supports the edge of the ceiling joist 5 in the longitudinal direction; and a hanging hardware 100 for hanging the ceiling joist receiver 4 from a beam 80. The hanging hardware 100 has a hook part 3 provided with a plurality of hooks 33 for hanging the ceiling joist receiver 4.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a ceiling base structure.

Background Art

[0002] Patent Document 1 describes a double ceiling base structure and its construction method. This double ceiling base structure includes a verge support and a verge support fitting. The verge support is composed of a pair of steel members with a substantially U-shaped cross-section. The steel members with a substantially U-shaped cross-section are oriented back to back, and a spacer is interposed between the facing back plates to form a slit-shaped groove between the back plates. The verge support fitting includes a horizontal fixed seat plate portion with a through hole formed therein and a vertical insertion plate portion. The verge support fitting has a screw bolt inserted through the through hole of the fixed seat plate portion. Then, it is fixed to the screw bolt by fixing adjustment nuts screwed on both sides straddling the fixed seat plate portion. The verge support and the verge support fitting are interconnected by screws screwed in from the outside with the insertion plate portion of the verge support fitting inserted into the slit-shaped groove of the verge support. The verge is horizontally spanned in a direction perpendicular to the verge support by inserting its end into the opening groove portion of the verge support. The position adjustment and height adjustment of the verge support can be adjusted in the vertical direction by screwing the fixing adjustment nuts of the verge support fitting in and out.

[0003] Patent Document 2 describes a hanging fitting for holding a verge support via a hanger on a suspension bolt and a ceiling base using the same. In this ceiling base, the verge is hung on the verge support held by the hanging fitting via a clip, and a ceiling member is attached to this verge.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0005] The soffit base materials such as the eaves edge and the eaves edge receiver are long members. For workers working on the floor surface, the work of constructing the soffit base using such long members at high places is not workable. For example, the work of fixing the eaves edge receiver to the suspension fitting while adjusting the installation height or fixing the eaves edge to the eaves edge receiver requires fixing work while accurately holding the eaves edge receiver or the like at a predetermined position at a high place, and the work difficulty is high. Therefore, improvement of workability when constructing the soffit base is desired.

[0006] The present invention has been made in view of such a situation, and an object thereof is to provide a soffit base structure that improves workability during construction.

Means for Solving the Problems

[0007] The soffit base structure according to the present invention for achieving the above object is a long eaves edge, an eaves edge receiver that supports an end portion in the longitudinal direction of the eaves edge, and a suspension fitting that suspends the eaves edge receiver from a beam, and the suspension fitting has a hook portion provided with a hook for hooking the eaves edge receiver.

[0008] The soffit base structure according to the present invention further may have the hooks facing in opposite directions respectively disposed on the hook portion.

[0009] The soffit base structure according to the present invention further the eaves edge receiver has an eaves edge support portion that supports an end portion in the longitudinal direction of the eaves edge, and a hooked portion that is disposed on the opposite surface of the eaves edge support portion and is hooked by the hook, and a pair of the eaves edges may be supported by the eaves edge receiver with their narrow sides facing each other.

[0010] The ceiling base structure according to the present invention further The edge receiver is formed in a U-shaped cross-section intersecting the longitudinal direction and facing horizontally. The engaged portion is formed on the outer surface of the bottom of the U-shaped valley. The edge receiver may be supported by fitting the end portion of the edge in the longitudinal direction into the inside of the U-shaped valley and opposing the small end surface of the edge to the inner surface of the valley at the bottom of the U-shaped valley.

[0011] The ceiling base structure according to the present invention further The hook portion is disposed between the outer surfaces of the bottoms of the pair of edge receivers. The edge, the edge receiver, and the hook portion may be arranged on the same plane.

[0012] The ceiling base structure according to the present invention further A plurality of the edges are supported by the edge receiver. The lengths of the adjacent edges in the longitudinal direction of the edge receiver may be the same.

Advantages of the Invention

[0013] It is possible to provide a ceiling base structure that improves workability during construction.

Brief Description of the Drawings

[0014]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Mode for Carrying Out the Invention

[0015] Based on the drawings, the ceiling base structure according to the embodiment of the present invention will be described.

[0016] FIG. 1 shows a ceiling base structure 200 according to the present embodiment. The ceiling base structure 200 is employed in a building such as a multi-story house having a framework made of steel, for example. In such a building, a plurality of living rooms are formed. The building has a foundation made of reinforced concrete, a framework structure composed of framework members such as columns and beams, and panels forming walls and floors, and is composed of an upper structure fixed to the foundation. The framework members and panels can be standardized (standardized) in advance. In this case, the framework members and the like can be manufactured in a factory in advance and transported to the construction site to assemble the building.

[0017] (Explanation of Schematic Configuration) As shown in FIG. 1, the ceiling base structure 200 is a structure of a building in which the ceiling material 89 of the building is suspended and supported by a beam 80. As shown in FIGS. 1 and 2, the ceiling base structure 200 includes a long edge support 5 that is a ceiling base, an edge support 4 that is a ceiling base and supports an end portion in the longitudinal direction of the edge support 5, and a hanging metal fitting 100 that suspends the edge support 4 from the beam 80. The hanging metal fitting 100 has a hook portion 3 provided with a hook 33 for hooking at least the edge support 4.

[0018] (Detailed Explanation) As shown in FIGS. 1 and 2, the ceiling base structure 200 includes a beam 80, a hanging metal fitting 100 fixed to the beam 80, an edge support 4 suspended and supported by the hanging metal fitting 100, an edge support 5 supported by the edge support 4, and a ceiling material 89 (see FIG. 1) suspended and supported by the edge support 5.

[0019] The hanging metal fitting 100 is a fitting for suspending the edge receiver 4 and the edge 5 from the beam 80 as shown in FIG. 1. As shown in FIGS. 1 and 3, it includes a fixing part 1 formed with a fitting part 10 fixed to the beam 80, and a hanging part 2 hanging down from the fixing part 1. As shown in FIG. 1, in the hanging metal fitting 100, the fitting part 10 is formed on the side closer to the beam 80, and the hanging part 2 is arranged on the side farther from the beam 80.

[0020] In the following description, the upward side in the vertical direction is simply referred to as up or above, etc., and the opposite is referred to as down or below, etc. For example, in FIG. 1, the hanging metal fitting 100 is arranged above the edge 5. Also, in the following description, in the hanging metal fitting 100, the side farther from the beam 80 and where the hanging part 2 is arranged is referred to as the front of the hanging metal fitting 100, the side closer to the beam 80 and where the fitting part 10 is arranged is referred to as the back of the hanging metal fitting 100, and the side intersecting the extending direction of the beam 80 is referred to as the side surface of the hanging metal fitting 100. When explaining the left and right of the hanging metal fitting 100, it means the left and right as seen from the front of the hanging metal fitting 100.

[0021] As shown in FIGS. 1 and 3, the fixing part 1 includes a hanging support part 15 for hanging the hanging part 2, a fitting part 10 formed in a U shape and capable of fitting a flange 81 (see FIG. 1) inside the valley of the U shape, a fixing bolt 14 for pressing the flange 81 against the inner side surface of the valley of the fitting part 10 to fix the fixing part 1 to the flange 81, a seat plate 13 for screwing the fixing bolt 14, and a guide part 17 extending in the vertical direction.

[0022] As shown in Fig. 3, the suspension support portion 15 is a member that serves as a seat for suspending and supporting the suspension portion 2. In the present embodiment, the suspension support portion 15 extends such that the direction intersecting (perpendicular in the present embodiment) the extending direction of the beam 80 (see Fig. 1) is the longitudinal direction, and includes a support plate 15a whose plate surface is along the horizontal direction, and side plates 15b, 15b extending downward in the vertical direction from both end portions in the short side direction of the support plate 15a. Notches 15c, 15c are formed in the side plates 15b, 15b, which are notched from the side away from the beam 80 toward the side facing the beam 80. The suspension support portion 15 has a cross-section in a front view that is an angular U-shape with the support plate 15a serving as the valley bottom plate. An insertion hole 16 penetrating in the vertical direction is formed in the support plate 15a. The insertion hole 16 is disposed on the side away from the beam 80 rather than the edge of the notch 15c in the extending direction of the support plate 15a. A suspension bolt 20 described later is inserted into the insertion hole 16. The suspension support portion 15 has a symmetric shape as shown in Figs. 4 and 5.

[0023] As shown in Figs. 1 and 3, the fitting portion 10 is a fixing seat for fixing the hanging hardware 100 to the beam 80 by sandwiching and fixing the flange 81 of the beam 80 (see Fig. 1). The fitting portion 10 is formed in a U-shape facing in the direction along the horizontal direction, and the bottom surface inside the valley in the U-shape faces the beam 80. And the flange 81 can be fitted inside the valley of the U-shape of the fitting portion 10. In the present embodiment, both side plates 15b of the suspension support portion 15 are notched along the horizontal direction from the side facing the beam 80 toward the side away from the beam 80, and the U-shape of the fitting portion 10 is formed. Hereinafter, the upper U-shaped side surface (one side surface) portion in the U-shape of the fitting portion 10 is referred to as the side surface portion 11, and the lower U-shaped side surface is referred to as the side surface portion 12.

[0024] The fixing bolt 14 is a fixture that presses the flange 81 (see Fig. 1) against the inner surface of the valley of the fitting portion 10 to fix the fixing portion 1 to the flange 81. The seat plate 13 is supported from below at the side portion 12 and is spanned between both side plates 15b, 15b. The seat plate 13 is formed with a screw hole 13a penetrating in the vertical direction. The fixing bolt 14 has its threaded portion inserted through the screw hole 13a from the lower surface of the seat plate 13 and is screwed into the seat plate 13. By fitting the flange 81 between the fixing bolt 14 and the side portion 11 and tightening the fixing bolt 14, the flange 81 can be strongly clamped between the fixing bolt 14 supported by the side portion 11 via the seat plate 13 and the side portion 11, and the fixing portion 1 can be fixed to the beam 80 (see Fig. 1).

[0025] As shown in Fig. 3, the guide portion 17 is a groove extending in the vertical direction formed on the inner surface side of the side plate 15b of the suspension support portion 15 in the fixing portion 1 (the inner surface of the valley in the U-shaped suspension support portion 15). The guide portions 17, 17 are formed on both side plates 15b, 15b of the suspension support portion 15. The guide portion 17 is linearly formed upward from the lower end of the side plate 15b. As will be described later, the guide portion 17 guides the raising and lowering of the hook portion 3.

[0026] The suspension portion 2 is a mechanism for suspending and supporting the field edge receiver 4 in a height position adjustable manner. As shown in Fig. 3, the suspension portion 2 includes a hook portion 3 provided with a hook 33 for hooking the field edge receiver 4, a suspension bolt 20 hanging down from the fixing portion 1 and screwing with the hook portion 3 to adjust the height of the hook portion 3, and nuts 20a, 20b screwed with the suspension bolt 20.

[0027] The suspension bolt 20 is a suspension tool for suspending the hook portion 3 and also an adjustment mechanism for adjusting the height of the hook portion 3. Further, it is an interface for the operator's adjustment work when adjusting the height of the hook portion 3.

[0028] The suspension bolt 20 is inserted into the insertion hole 16 of the suspension support portion 15. Then, as shown in FIGS. 3 to 5, the bolt head 21 of the suspension bolt 20 is locked to the support plate 15a, and it is suspended by the suspension support portion 15. In FIGS. 3 and 4, a case is illustrated in which a nut 20a is screwed onto the suspension bolt 20, and the support plate 15a is sandwiched between the bolt head 21 and the nut 20a to fix the suspension bolt 20 to the suspension support portion 15. Note that the relationship between the suspension bolt 20 and the nut 20a is not limited to the above description. For example, an incomplete thread portion may be provided under the neck of the suspension bolt 20, and notch processing (notches in the thread) may be performed to fix the position of the nut 20a. The incomplete thread portion may be provided so that the nut 20a stops (cannot be tightened) before the support pressure acts on the suspension support portion 15 even when the nut 20a is tightened. When notch processing is provided, loosening of the nut 20a due to vibration or the like can be suppressed. Also, the nut 20a may not be used. Also, a lock nut can be used as the nut 20a.

[0029] As shown in FIG. 1, the hook portion 3 is a suspension fitting that suspends the edge receiver 4. As shown in FIGS. 3 and 4, the hook portion 3 is suspended by the suspension bolt 20. The hook portion 3 has a plate-shaped suspension plate 30 formed of a metal such as an iron-based alloy, for example. The suspension plate 30 is formed in a crank shape by bending or the like as an example. In the present embodiment, the suspension plate 30 has a first plate portion 31, a second plate portion 32, and a third plate portion 34. In the present embodiment, the first plate portion 31, the second plate portion 32, and the third plate portion 34 can be integrally formed from a single plate material by bending or press molding.

[0030] The first plate portion 31 is a plate-shaped member whose longitudinal direction is along the vertical direction. Hooks 33 facing in opposite directions are disposed on the first plate portion 31. The hook 33 is a locking structure for hooking the edge receiver 4 (see FIG. 1).

[0031] The hook 33 is disposed, as an example, at the end on the lower end side of the first plate portion 31. One or more (for example, two) hooks 33 are formed on one surface. As a locking structure for latching the field edge receiver 4, the hook 33 may be formed, for example, by making a cut in a part of the plate surface of the first plate portion 31 and bending it upward so that the tip portion faces upward in a fishhook shape or a hook shape.

[0032] Hooks 33 are disposed on each of the front side surface (one surface) and the back side surface (the other surface) of the first plate portion 31. The hook 33 on the front side and the hook 33 on the back side in the first plate portion 31 face in opposite directions. As shown in FIG. 3, the respective hooks 33 are arranged in a positional relationship where they are back-to-back in a side view of the first plate portion 31.

[0033] FIG. 3 shows a case where two hooks 33, 33 are arranged along the vertical direction on one side of the first plate portion 31, and two hooks 33, 33 are similarly arranged along the vertical direction on the other side. Hereinafter, the hooks 33 arranged in a positional relationship where they are back-to-back in a side view of the first plate portion 31 may be collectively referred to as a pair of hook groups.

[0034] As shown in FIG. 1, the plate surface of the first plate portion 31 faces the beam 80. Further, the plate surface of the first plate portion 31 intersects perpendicularly with the extending direction of the field edge 5. That is, among the pair of hook groups, the hook 33 on the back side faces the beam 80, and the hook 33 on the front side faces the back side of the beam 80.

[0035] As shown in FIG. 3, the second plate portion 32 is arranged with its plate surface along the horizontal direction, and one end portion (the front side end portion) is connected to the upper end portion of the first plate portion 31. The second plate portion 32 extends from the upper end portion of the first plate portion 31 toward the side of the beam 80 in the horizontal direction.

[0036] In the second plate portion 32, a screw hole 32a penetrating in the vertical direction is formed. A suspension bolt 20 is screwed into the screw hole 32a. Thereby, the hook portion 3 is suspended from the suspension support portion 15 of the fixing portion 1 via the suspension bolt 20. Further, by rotating the suspension bolt 20, the second plate portion 32 in which the screw hole 32a is formed can move up and down. Thereby, the suspension plate 30 can move up and down. That is, by rotating the suspension bolt 20, the height of the hook portion 3 in the vertical direction can be adjusted. The rotation of the suspension bolt 20 is performed, for example, by rotating the bolt head 21 with a spanner or the like. In this way, in the hanging hardware 100, the height of the hook portion 3 can be easily adjusted by rotating the suspension bolt 20, and thereby, the height adjustment of the edge receiver 4 and the edge 5 (see FIG. 1) can be easily performed.

[0037] FIG. 3 shows a case where a nut 20b is screwed onto the suspension bolt 20 and the nut 20b is applied to the plate surface (for example, the upper surface) of the second plate portion 32 to fix the height position of the second plate portion 32 whose height has been adjusted. Note that the nut 20b may not be used. Also, a lock nut can be used as the nut 20b.

[0038] As shown in FIGS. 3 and 4, the third plate portion 34 is connected to the end portion (the end portion on the back side) of the second plate portion 32 on the side opposite to the side connected to the first plate portion 31. The third plate portion 34 extends upward along the vertical direction from the end portion of the second plate portion 32. The plate surface of the third plate portion 34 is along the first plate portion 31 and is, for example, parallel. The third plate portion 34 is disposed in the space between both side plates 15b, 15b of the suspension support portion 15.

[0039] On the left and right side surfaces of the third plate portion 34, ribs 34a, 34a extending outward of the third plate portion 34 are formed. The ribs 34a, 34a are fitted into the grooves of the guide portions 17, 17 (see FIG. 3) formed on the side plates 15b, 15b of the suspension support portion 15. The hook portion 3 can be stably moved up and down in the vertical direction by being guided along the grooves of the guide portions 17 with the ribs 34a.

[0040] As shown in Fig. 6, the hanging hardware 100 can be fixed at any position on the flange 81 of the beam 80 by the fitting portion 10. The attachment of the hanging hardware 100 to the flange 81 and the position adjustment on the flange 81 can be performed by simply loosening the fixing bolt 14 (see Fig. 3), moving the hanging hardware 100 along the flange 81, and tightening and fixing the fixing bolt 14 at a desired position. A notch (a cutout in the thread) may be provided at the tip of the fixing bolt 14. The notch can prevent the displacement of the fixing bolt 14. For example, after the hanging hardware 100 is shipped, it is possible to prevent the displacement and dropping of the fixing bolt 14 due to vibration during transportation.

[0041] As shown in Fig. 6, the height of the hook portion 3 of the hanging hardware 100 can be adjusted by a simple operation of rotating the suspension bolt 20. That is, in the hanging hardware 100 having the configuration exemplified above, when the suspension bolt 20 is loosened, the hook portion 3 can be lowered. Also, when the suspension bolt 20 is tightened, the hook portion 3 can be raised.

[0042] In the hanging hardware 100, as described above, the suspension bolt 20 serves as an interface for adjusting the height of the hook portion 3, and the height of the hook portion 3 and the edge receivers 4 and edges 5 suspended therefrom can be easily adjusted. Further, since the suspension bolt 20 is disposed above the hook portion 3, the workability of adjusting the height of the hook portion 3 is improved. Thus, the hanging hardware 100 improves the workability of adjusting the height of the ceiling substrate during or after the construction of the ceiling substrate structure 200 (see Figs. 1 and 2).

[0043] In the present embodiment, particularly since the bolt head 21 of the suspension bolt 20 is disposed at the uppermost part of the hanging hardware 100, as shown in Fig. 1, even when the edge receivers 4 and edges 5 are suspended by the hanging hardware 100, the bolt head 21 is in a very workable position for the operator. Thereby, the rotation of the suspension bolt 20 as an interface for adjusting the height of the hook portion 3 can be easily performed by rotating the bolt head 21. Hereinafter, the ceiling substrate structure using the hanging hardware 100 will be described in detail.

[0044] As shown in FIG. 7, the edge receiver 4 is a support member that supports the end portion of the edge 5 in the longitudinal direction. The edge receiver 4 is a long member formed in a U-shaped cross-section (katakana "コ" shape) that intersects the longitudinal direction. Hereinafter, the plate portion at the bottom of the U-shaped valley of the edge receiver 4 is referred to as the bottom plate portion 40, the plate portion extending from the lower end of the bottom plate portion 40 is referred to as the lower flange 41, and the plate portion extending from the upper end of the bottom plate portion 40 is referred to as the upper flange 42. The edge receiver 4 is formed of a metal such as steel, and can be formed by bending a plate-shaped steel material. As shown in FIG. 2, the edge receiver 4 is arranged along the longitudinal direction of the beam 80. Inside the U-shaped valley of the edge receiver 4, as will be described later, the end portion of the edge 5 is fitted, enabling the edge 5 to be supported. That is, the inside of the U-shaped valley of the edge receiver 4 is the edge support portion.

[0045] The lower flange 41 is preferably bent at a slightly acute angle inside the U-shape. As a result, when the edge 5 is fitted inside the U-shaped valley of the edge receiver 4, the lower flange 41 that receives the load of the edge 5 opens to the outside of the U-shape. This can prevent a step from occurring in the ceiling panel such as a gypsum board attached to the edge 5. Also, this increases the fitting strength of the edge 5 to the edge receiver 4, making it difficult for the edge 5 to shift horizontally. The upper flange 42 is preferably bent with the end portion 42a in a V-shape upward. By doing so, the end portion 42a becomes a guide mechanism when fitting the edge 5.

[0046] As shown in FIG. 7, on the bottom plate portion 40 which is the U-shaped valley bottom of the edge receiver 4, on the U-shaped outer surface (the opposite surface inside the U-shaped valley of the edge receiver 4 that functions as an edge support portion), a portion to be hooked that is hooked by a hook 33 (see FIG. 3 etc.) is provided. In the present embodiment, as an example of the portion to be hooked, a slit 49 that extends in the direction along the longitudinal direction of the edge receiver 4 and penetrates the bottom plate portion 40 is formed. The slits 49 are formed in pairs, for example, at the same position in the longitudinal direction of the edge receiver 4. The slits 49 may be formed at a plurality of different positions in the longitudinal direction of the edge receiver 4. For example, pairs of slits 49 may be formed at two or more different positions in the longitudinal direction of the edge receiver 4. Note that the portion to be hooked is not limited to a slit, and may be other shaped openings or protrusions (for example, claws) that can be hooked by the hook 33.

[0047] FIG. 8 shows the procedure for attaching the edge receiver 4 to the hanging hardware 100. In FIG. 8, the illustration of the beam 80 (see FIG. 2 etc.) is omitted. The hanging hardware 100 is fixed to the beam 80, and the hanging bolt 20 is rotated via the bolt head 21 to adjust the height of the hook portion 3 to some extent (FIG. 8(a)).

[0048] Next, the edge receiver 4 is temporarily placed on the hook 33. That is, the hook portion of the hook 33 is inserted into the slit 49 (see FIG. 7) of the edge receiver 4, and the edge receiver 4 is hooked and suspended on the suspension plate 30 of the hook portion 3 (FIG. 8(b)). At this time, the edge receiver 4 opposes the outer surface of the bottom plate portion 40 in the U-shape to the first plate portion 31 of the suspension plate 30. In the present embodiment, at least a part of the outer surface of the bottom plate portion 40 of the edge receiver 4 is in contact with the plate surface of the first plate portion 31. Since the slit 49 extends in the direction along the longitudinal direction of the edge receiver 4, the attachment position of the edge receiver 4 to the hanging hardware 100 can be adjusted within the range of the longitudinal width of the slit 49.

[0049] With the edge receiver 4 hooked to the suspension plate 30 of the hook portion 3, the inner surface of the U-shaped edge receiver 4 faces horizontally (Fig. 8(c)). One edge receiver 4 may be hooked to each side of the first plate portion 31. That is, a pair of edge receivers 4, 4 hooked to both sides of the first plate portion 31 may be hooked to the suspension plate 30 with their respective bottom plate portions 40 facing each other. In this state, as shown in Fig. 1, in the horizontal direction, the first plate portion 31 and its hook 33 are sandwiched between the pair of edge receivers 4, 4. The pair of edge receivers 4, 4 may be fixed with a fitting 39 such as a screw or a bolt. In this case, with the pair of edge receivers 4, 4 sandwiching the first plate portion 31, the fitting 39 can penetrate and fix the pair of edge receivers 4, 4 and the first plate portion 31.

[0050] As described above, in the ceiling base structure 200 using the hanging hardware 100, the operation of hanging or fixing the edge receiver 4 to the beam 80 (hereinafter simply referred to as "attachment") is extremely easy. Conventionally, the operation of attaching the edge receiver 4 to the beam 80 while adjusting the installation height has been a high-altitude operation, so the workability has not been good in the first place. Moreover, generally in the work of constructing the ceiling base, it is required to perform the fixing work while accurately holding the edge receiver 4 at a predetermined position. Therefore, the work of installing the edge receiver 4 has been highly difficult. However, when using the hanging hardware 100, the hanging and fixing of the edge receiver 4 becomes an easy operation of simply hooking the edge receiver 4 to the hook portion 3, and the workability during the construction of the ceiling base structure 200 (see Figs. 1 and 2) is improved.

[0051] In addition, when it is desired to adjust the height of the field edge receiver 4 after its installation, if the nut 20b is loosened and the suspension bolt 20 is rotated through the bolt head 21 of the suspension hardware 100 to change the height of the hook portion 3, the height of the field edge receiver 4 can be adjusted (see Fig. 3). After adjusting the height of the field edge receiver 4, tighten the nut 20b. Thereby, the adjusted height position of the field edge receiver 4 can be fixed, and rattling of the suspension plate 30 can be suppressed. During this height adjustment, since the suspension bolt 20 is located at a position higher than the hook portion 3, the workability of the height adjustment work is good. In particular, since the bolt head 21 is arranged at the uppermost part of the suspension hardware 100, even when the field edge receiver 4 is suspended by the suspension hardware 100, the bolt head 21 is extremely easy to work on for the operator. Also, since notches 15c, 15c are formed in the side plates 15b, 15b, it is possible to avoid interference between tools such as a wrench or the hands of the operator and the side plates 15b, 15b when tightening or loosening the nut 20b. Thus, when adjusting the height of the field edge receiver 4, it is not necessary to disassemble the installed field edge receiver 4.

[0052] As shown in Fig. 1, the field edge 5 is a long member that is arranged on the back side (ceiling back side) of the ceiling material 89 and serves as a base for suspending the ceiling material 89. The field edge 5 is, for example, a hollow square bar made of metal formed of steel. The field edge 5 is preferably formed by standardizing the longitudinal direction to a predetermined length. The field edge 5 is arranged such that its longitudinal direction is along the horizontal direction and intersects (orthogonal in this embodiment) the longitudinal direction of the beam 80.

[0053] As shown in FIGS. 1 and 2, the edge member 5 has its end supported by the edge member receiver 4. More specifically, the edge member 5 is supported by the edge member receiver 4 with its end fitted inside the U-shaped groove of the edge member receiver 4. That is, as shown in FIG. 1, the edge member receiver 4 fits the end of the edge member 5 in the longitudinal direction inside the U-shaped groove, and supports the edge member 5 with the mouth surface 51 of the edge member 5 facing the inner surface of the groove of the U-shaped bottom plate portion 40. Thereby, the edge member receiver 4 can firmly support the edge member 5, and thus the strength of the ceiling base structure 200 is improved. In addition, the construction work of attaching (holding) the edge member 5 to the edge member receiver 4 can be made simple by fitting the end of the edge member 5 inside the U-shaped groove of the edge member receiver 4. Also, since the work of fitting the end of the edge member 5 inside the U-shaped groove of the edge member receiver 4 can be done in a short time, it is not necessary for the operator to hold the edge member 5 for a long time, and the work burden is reduced. In addition, since the edge member 5 is also divided at the position of the edge member receiver 4, it is possible to avoid the case where the edge member 5 has to be made so long that it is difficult for the operator to handle, and the length can be made easy for the operator to handle. As a result, the workability of the work of constructing the ceiling base structure 200 is improved.

[0054] In addition, when it is desired to adjust the height of the edge member 5 after the installation of the edge member 5, similar to the case of adjusting the height of the above-mentioned edge member receiver 4, by rotating the suspension bolt 20 through the bolt head 21 of the hanging hardware 100 to change the height of the hook portion 3, the height of the edge member 5 can be easily adjusted. In the height adjustment of the edge member 5, it is not necessary to disassemble the installed edge member 5.

[0055] Figure 1 shows a state in which a pair of eaves supports 4, 4 are hooked to a suspension plate 30 with their respective bottom plate portions 40 facing each other. Further, in Figure 1, it shows a case where the ends of a pair of eaves 5, 5 are fitted and supported in a positional relationship in which the respective narrow sides 51, 51 of the pair of eaves supports 4, 4 face each other. By arranging the pair of eaves 5, 5 in a positional relationship in which their respective narrow sides 51 face each other, the movement of one eave 5 can be restricted by the other eave 5, and the movement of the other eave 5 in the direction along the longitudinal direction (for example, sway) can be suppressed. As a result, the strength such as the durability and seismic resistance of the ceiling base structure 200 is improved.

[0056] In a state where the eave 5 is supported by the eave support 4, in the longitudinal direction of the eave 5, the eave 5, the eave support 4, the hook portion 3 (first plate portion 31), the eave support 4, and the eave 5 are arranged in this order. Further, the hook 33 of the eave 5, the eave support 4, and the hook portion 3 are arranged on the same plane.

[0057] In the present embodiment, as described above, as the ceiling base structure 200, the hook 33 of the eave 5, the eave support 4, and the hook portion 3 are arranged on the same plane. Thus, compared with the case where the eave 5 and the eave support 4 are arranged at different heights, the height of the space between the beam 80 and the eave 5 can be secured higher (wider). Therefore, the workability when constructing the ceiling base is improved. Also, the workability of ceiling back piping and wiring is improved.

[0058] In the ceiling base structure 200, as shown in Figure 9, a plurality of eave supports 4 and eaves 5 are arranged. In Figure 9, a pair of eave supports 4, 4 suspended by hanging hardware 100 are arranged in a plurality of rows (two rows in Figure 9) in parallel. Further, a plurality of eaves 5 are supported by one eave support 4.

[0059] At each of the pair of edge supports 4, 4 suspended by the hanging metal object 100, ends of a plurality of edges 5 are supported. Each edge 5 having its end supported by one edge support 4 is arranged such that its longitudinal direction is aligned linearly with the corresponding edge 5 having its end supported by the other edge support 4. That is, the paired edges 5 are arranged linearly with their narrow faces 51 facing each other (see FIG. 1). Note that the paired edges 5 refer to a combination of two edges 5 arranged linearly in a direction intersecting the longitudinal direction of the edge support 4 with the pair of edge supports 4, 4 suspended by the hanging metal object 100 interposed therebetween. In this way, by arranging each edge 5 having its end supported by one edge support 4 and the corresponding edge 5 having its end supported by the other edge support 4 such that their longitudinal directions are aligned linearly, the movement of each of the other edges 5 by each of one edge 5 is restricted, and the movement of each of the other edges 5 in the direction along the longitudinal direction (e.g., swaying) can be suppressed. Thereby, the strength such as the durability and seismic resistance of the ceiling base structure 200 is improved.

[0060] In the ceiling base structure 200, it is preferable that the lengths in the longitudinal direction of adjacent edges 5, 5 in the longitudinal direction of the edge support 4 are the same. Thereby, it becomes possible to construct the ceiling base structure 200 by standardizing the edges 5 to a predetermined length in the longitudinal direction, and the cost can be reduced. In FIG. 9, the edges 5 supported by a certain edge support 4 have the same length in the longitudinal direction as the other adjacent edges 5 in the extending direction of the edge support 4. For example, in FIG. 9, the group of edges 5 having one end supported on the side of the partition wall 85 and the other end supported by the edge support 4 have the same length in the longitudinal direction. Also, the group of edges 5 having both ends supported by the edge support 4 have the same length in the longitudinal direction.

[0061] Of course, in the ceiling base structure 200, due to the structure of the building and the facilities arranged in the ceiling space, etc., it is allowed to make the length of some of the adjacent edges 5, 5 in the longitudinal direction of the edge support 4 different from the length of the other edges 5.

[0062] As shown in Fig. 9, the hanging hardware 100 may be arranged at predetermined intervals in the longitudinal direction of the eaves receiver 4. For example, in the longitudinal direction of the eaves receiver 4, one hanging hardware 100 may be arranged for every four rows (multiple rows) of the eaves 5 arranged. The hanging hardware 100 only needs to be arranged in a sufficient number according to its designed load-bearing capacity.

[0063] As described above, it is possible to provide a ceiling substrate structure that improves workability during construction.

[0064] 〔Alternative Embodiment〕 (1) In the above embodiment, the hanging part 2 of the hanging hardware 100 has been described as a mechanism for hanging and supporting the eaves receiver 4 in a height-adjustable manner. However, the hanging part 2 may further have a vibration-proof function for the eaves receiver 4. Fig. 10 shows a hanging hardware 100A having a hanging part 2 with a vibration-proof function. The hanging hardware 100A is different from the hanging hardware 100 shown in Fig. 3 in that its hanging part 2 has a vibration-proof function, and other structures are the same.

[0065] In the case of the hanging hardware 100, the hanging bolt 20 is inserted into the insertion hole 16 of the hanging support part 15, and the bolt head 21 of the hanging bolt 20 is locked to the support plate 15a (the outer peripheral part of the insertion hole 16), and the case of being hung on the hanging support part 15 has been described. However, in the hanging hardware 100A having a vibration-proof function, as shown in Fig. 10, a cylindrical elastic body 29 (for example, vibration-proof rubber) is arranged between the bolt head 21 and the support plate 15a. In the hanging hardware 100A, the hanging bolt 20 is inserted into the cylindrical elastic body 29 and the insertion hole 16 of the hanging support part 15, and the bolt head 21 of the hanging bolt 20 is locked to the upper surface of the cylindrical elastic body 29 placed on the support plate 15a, and it may be hung on the hanging support part 15 via the elastic body 29. As shown in Fig. 10, a washer 28 may be sandwiched between the bolt head 21 and the elastic body 29.

[0066] (2) In the above embodiment, the suspension bolt 20, which is an example of an interface for adjusting the height of the hook portion 3, is used. When adjusting the height of the hook portion 3, the rotation of the suspension bolt 20 is exemplified by rotating the bolt head 21 with a wrench or the like. However, instead of the suspension bolt 20, a screw such as a plus screw may be used. In this case, the rotation of the screw can be adjusted by rotating the screw head with a driver to adjust the height of the hook portion 3.

[0067] (3) In the above embodiment, the edge receivers 4 are respectively hooked on both sides of the first plate portion 31, and the pair of edge receivers 4, 4 hooked on both sides of the first plate portion 31 are hooked on the suspension plate 30 with their respective bottom plate portions 40 facing each other. However, there may be a case where only one edge receiver 4 is hooked on one side of the first plate portion 31. That is, the hanging hardware 100 is not limited to the case of hanging a pair of edge receivers 4, 4, and may also hang only one edge 5.

[0068] (4) In the above embodiment, when it is desired to adjust the height of the edge receivers 4 and the edges 5 after installing the edge receivers 4 and the edges 5 when constructing the ceiling base structure 200, it is explained that the height of the hook portion 3 can be changed by rotating the suspension bolt 20 through the bolt head 21 of the hanging hardware 100, thereby adjusting the height of the edge receivers 4 and the edges 5. However, the installation after the edge receivers 4 and the edges 5 are installed is not limited to the installation when constructing the ceiling base structure 200 during new construction of a building. The installation after the edge receivers 4 and the edges 5 are installed includes, for example, maintenance work and renovation after the ceiling base structure 200 is constructed.

[0069] Note that the configurations disclosed in the above embodiments (including other embodiments, the same hereinafter) can be applied in combination with the configurations disclosed in other embodiments as long as there is no contradiction. Also, the embodiments disclosed in this specification are examples, and the embodiments of the present invention are not limited to this, and can be appropriately modified within the scope not departing from the object of the present invention.

Industrial Applicability

[0070] The present invention can be applied to a ceiling base structure.

Explanation of Signs

[0071] 1: Fixing part 2: Hanging part 3: Hook part 4: Edge receiver 5: Edge 10: Fitting part 11: Side surface part 12: Side surface part 13: Seat plate 13a: Screw hole 14: Fixing bolt 15: Hanging support part 15a: Support plate 15b: Side plate 15c: Notch part 16: Insertion hole 17: Guide part 20: Hanging bolt 20a: Nut 20b: Nut 21: Bolt head 28: Washer 29: Elastic body 30: Hanging plate 31: First plate part 32: Second plate part 32a: Screw hole 33: Hook 34: Third plate part 34a: Rib 39: Metal fitting 40: Bottom plate part 41: Lower flange 42: Upper flange 42a: End part 49: Slit (engaging part) 51: Small end surface 80: Beam 81: Flange 83: Ceiling material 85: Partition wall 89: Ceiling material 100: Hanging hardware 100A: Hanging hardware 200: Structure of the basement under the skylight

Claims

1. A long edge, An edge receiver that supports the end of the edge in the longitudinal direction, And a hanging hardware that hangs the edge receiver on a beam, The hanging hardware has a hook portion provided with a hook for hooking the edge receiver, The hooks facing opposite directions are respectively arranged on the hook portion, The edge receiver is, An edge support portion that supports the end of the edge in the longitudinal direction, And a hooked portion that is arranged on the opposite surface of the edge support portion and is hooked by the hook, The cross-section intersecting the longitudinal direction is formed in a U-shaped with the horizontal direction facing, The hooked portion is formed on the outer surface of the bottom of the U-shaped valley, The end of the edge in the longitudinal direction is fitted into the inside of the U-shaped valley, and the small end surface of the edge is opposed to the inner surface of the valley at the bottom of the U-shaped valley to support the edge, A ceiling floor structure in which a pair of the edges are supported by the edge receiver with their small end surfaces facing each other.

2. The hook portion is arranged between the outer surfaces of the bottoms of a pair of the edge receivers, The ceiling floor structure according to claim 1, wherein the edge, the edge receiver, and the hook portion are arranged on the same plane.

3. A plurality of the edges are supported by the edge receiver, The ceiling floor structure according to claim 2, wherein the lengths of the adjacent edges in the longitudinal direction of the edge receiver are the same.

4. The edge receiver is, The bottom of the U-shaped valley is plate-shaped, A lower plate portion extending from the lower end of the bottom of the U-shaped valley, And an upper plate portion extending from the upper end of the bottom of the U-shaped valley, The lower side plate portion intersects the bottom of the U-shaped valley at an acute angle, The ceiling base structure according to claim 1, wherein an end portion of the upper side plate portion opposite to the bottom of the U-shaped valley is bent upward.

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