JP2016079621A - Brace installation metal fitting, and ceiling structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a brace installation metal fitting for installing a brace in a cruciform at an intersection of ceiling backing materials, simply and at a low cost.SOLUTION: A brace installation metal fitting 1 includes a fixing piece 2 screwed on a side surface of a hanger 22, two flat fitting plate parts 3a, 3b extending outward respectively from both sides of the fixing piece 2, to enable fixing of an edge part of a brace to the plate surface, and an engaging part 4 disposed on a lower edge of the fitting plate parts 3a, 3b, to be engaged with a ceiling backing material. The fixing piece 2 is formed by bending a metal plate inward to an L-shape when seen in a planar view, and disposed to cover the side surface of the hanger 22 from two directions. The two fitting plate parts 3a, 3b are formed by bending the metal plate outward almost perpendicularly at both side edges of the fixing piece 2, the fitting plate parts extending in a longer-side direction of two ceiling backer materials connected perpendicularly at an intersection 25.SELECTED DRAWING: Figure 11

Description

  The present invention relates to a brace mounting bracket for fixing an end portion of a brace to a crossing portion of a ceiling base material in a ceiling structure including a bowl-shaped ceiling base material assembled in a lattice shape.

  A ceiling structure in which ceiling base materials are assembled in a lattice shape to form a ceiling frame body that supports a ceiling plate, and the ceiling frame body is connected to a suspension bolt hanging from a ceiling slab via a hanger is widely known. . In such a ceiling structure, in order to improve the earthquake resistance, a brace is laid between an intersection where the ceiling base material is connected in a cross shape and a nearby suspension bolt. In recent years, a brace mounting bracket has been proposed in which a brace can be laid in a cross shape around the intersection by attaching to the intersection of the ceiling base material (for example, Patent Document 1). Specifically, in the configuration described in Patent Document 1, as viewed from the longitudinal direction of the first ceiling base material (main bar), first portions that form portions for fixing the ends of the braces are formed on both sides of the intersecting portion. By attaching the second brace mounting brackets and the second brace mounting brackets that form the portions for fixing the end portions of the braces on both sides of the intersection as viewed from the longitudinal direction of the second ceiling base material (cross bar) The end of the brace can be fixed in the cross direction of the intersection.

JP 2011-140749 A

  By the way, in the structure of the said patent document 1, in order to be able to construct a brace in the shape of a cross centering on an intersection part, two types, a 1st brace mounting bracket and a 2nd brace mounting bracket, are required, The burden on is large. In addition, since the two types of brace mounting brackets must be mounted at the intersections in a prescribed order, the mounting operation is complicated.

  The present invention has been made in view of the present situation, and compared to the conventional configuration, the brace mounting bracket that allows a brace to be laid in a cross shape around the intersection, and a brace mounting bracket that is inexpensive and simple. The purpose is to provide a ceiling structure.

  The present invention includes a bowl-like ceiling base material assembled in a lattice shape, and a hanger attached to an intersection where the ceiling base material is connected in a cross shape to connect the ceiling base material and the suspension bolt. In a brace mounting bracket that is attached to the intersection and is capable of fixing the end of the brace to the intersection, a fixed piece that is screwed to the side surface of the hanger, and the fixed piece Two flat plate-like mounting plate portions that extend from both side edges and enable the brace end to be fixed to the plate surface, and are arranged at the lower edge of each mounting plate portion, The fixing piece is formed by bending the metal plate inward so as to be L-shaped in plan view, and is arranged so as to cover the side surface of the hanger from two directions. The two mounting plate portions are arranged so that the metal plate faces outward at both side edges of the fixed piece portion. Be comprised by music, a brace mounting bracket, characterized by being configured to respectively extend along the longitudinal direction of the two ceiling base member coupled at a right angle by the intersection.

  When one such brace mounting bracket is attached to the intersection, the braces can be installed in an L shape around the intersection by fixing the ends of the braces to the two attachment plates. . For this reason, if such brace mounting brackets are mounted one by one at a 180 ° rotationally symmetric position horizontally around the intersection, the ends of the braces are respectively attached to the four mounting plates disposed around the intersection. By fixing, the brace can be laid in a cross shape around the intersection. As described above, the brace mounting bracket of the present invention can be installed in a cross shape around the intersection by attaching two identically shaped braces to the intersection, so that according to the present invention, the brace is attached to the intersection. There is an advantage that the manufacturing cost can be reduced by reducing the types of brace mounting brackets. Further, in the mounting work of the brace mounting bracket, it is not necessary to distinguish between the two brace mounting brackets, and there is an advantage that the mounting work can be simplified.

  In the present invention, each of the fixed piece portions is extended from one side edge in the horizontal direction and is screwed to the mounting plate portion of the same-shaped brace mounting bracket that is attached at a symmetrical position with the intersection portion as the center. A configuration with a threaded portion is proposed. Here, the “symmetrical position with respect to the intersection” means a position obtained by rotating the brace mounting bracket 180 degrees along the horizontal plane with the intersection as the center.

  In such a configuration, since the two brace mounting brackets attached to the intersection are directly screwed together, the two brace mounting brackets are firmly fixed to the hanger or ceiling base material. Thus, the earthquake resistance can be further improved.

  In the above-described configuration, a configuration is proposed in which the mutual screwing portion extends in the horizontal direction from the upper portion of the fixed piece portion and is screwed to the upper portion on the base end side of the mounting plate portion of the same-shaped brace mounting bracket. Is done.

  The end of the brace is fixed so that the plate surface of the mounting plate section is obliquely crossed from the upper end on the front end side to the lower end on the base end side. The part is not fixed. For this reason, in such a configuration, the mutual screwing portion can be screwed to the mounting plate portion of the other brace mounting bracket without causing interference with the end portion of the brace.

  Another aspect of the present invention is a hanger-like ceiling base material assembled in a lattice shape, a hanger attached to an intersection where the ceiling base material is connected in a cross shape, and connecting the ceiling base material and the suspension bolts. The brace mounting bracket is attached to each of the symmetrical positions around the intersection, one by one.

  According to such a ceiling structure, it is possible to lay the braces in a cross shape around the intersection of the ceiling base material at a lower cost and easier than the conventional configuration.

  As described above, according to the present invention, there is a ceiling structure provided with a bowl-shaped ceiling base material assembled in a lattice shape, and the brace is cross-shaped easily and inexpensively around the intersection of the ceiling base material. Can be installed.

It is a perspective view which shows the ceiling structure which attaches the brace mounting bracket 1 of Example 1. FIG. 3 is a perspective view of an intersection 25. FIG. It is a perspective view of the front side of the brace mounting bracket 1 of Example 1. FIG. It is a perspective view of the back side of the brace mounting bracket 1 of Example 1. FIG. 1 is a front view of a brace mounting bracket 1 according to Embodiment 1. FIG. It is a rear view of the brace mounting bracket 1 of Example 1. It is a right view of the brace mounting bracket 1 of Example 1. It is a left view of the brace mounting bracket 1 of Example 1. 1 is a plan view of a brace mounting bracket 1 according to Embodiment 1. FIG. FIG. 3 is a bottom view of the brace mounting bracket 1 according to the first embodiment. It is a perspective view of the cross | intersection part 25 of the state which attached the brace mounting bracket 1 of Example 1. FIG. It is a top view of the cross | intersection part 25 of the state which attached the brace mounting bracket 1 of Example 1. FIG. It is explanatory drawing which shows the state which laid the brace 17 in the cross | intersection part 25. FIG. It is a perspective view of the front side of the brace mounting bracket 1a of Example 2. It is a perspective view of the back side of brace mounting bracket 1a of Example 2. It is a front view of the brace mounting bracket 1a of Example 2. It is a rear view of the brace mounting bracket 1a of Example 2. It is a right view of the brace mounting bracket 1a of Example 2. It is a left view of the brace mounting bracket 1a of Example 2. It is a top view of the brace mounting bracket 1a of Example 2. It is a bottom view of the brace mounting bracket 1a of Example 2. It is a perspective view of the cross | intersection part 25 of the state which attached the brace mounting bracket 1a of Example 2. FIG.

  Embodiments of the present invention are described according to the following examples.

  FIG. 1 shows a ceiling structure to which the brace mounting bracket 1 of this embodiment is attached. FIG. 1 shows a state before the brace mounting bracket 1 and the brace 17 are mounted, and the brace mounting bracket 1 and the brace 17 are additionally mounted on the ceiling structure. More specifically, the ceiling structure includes a ceiling plate 20, a ceiling frame body 21, a hanger 22, a suspension bolt 23, and the like. The lattice-like ceiling frame 21 that supports the ceiling plate 20 is formed by assembling two types of ceiling base materials, a main bar 24a and a cross bar 24b, in a lattice shape. Specifically, as shown in FIG. 2, the main bar 24 a and the cross bar 24 b are connected to the side surface of the main bar 24 a by connecting the two cross bars 24 b at right angles from both sides. Cross portions 25 connected in a cross shape can be formed, and a plurality of main bars 24a are arranged in parallel at intervals, and a plurality of cross bars 24b are arranged orthogonally between the main bars 24a. By connecting in a cross shape, a lattice-like ceiling frame 21 is formed as a whole. Since this ceiling structure can be widely used for the structure other than the brace mounting bracket 1, the detailed description is omitted.

  As shown in FIGS. 1 and 2, the main bar 24 a and the cross bar 24 b have a substantially inverted T-shaped vertical cross section, and have a vertical side portion 29 in the vertical direction and a wide width at the upper end of the vertical side portion 29. A locking ridge 30 and a locking edge 31 that extends from the lower end of the vertical side 29 to both sides and supports the side edge of the ceiling board 20 are provided. The hanger 22 is a vertically long rectangular metal piece formed by molding a metal plate, and is mainly attached to the intersection 25 of the ceiling base materials 24a and 24b as shown in FIGS. Then, the ceiling frame 21 is connected to the suspension bolt 23. More specifically, as shown in FIG. 2, the hanger 22 has a hanging bolt connecting projection piece 36 formed at the upper end of a vertically long rectangular plate-like main plate portion 35, and a ceiling base material 24 a at the lower end of the main plate portion 35. , 24b is provided. The clamping tool 37 is configured to be in close contact with the locking ridge 30 by clamping the locking ridge 30 of the ceiling base material (usually the main bar 24a) with a screw. Further, the upper position of the hanger 22 and the lower position of the hanging bolt connecting protrusion 36 constitutes a metal fitting fixing portion 39 for fixing the brace attachment metal 1. The metal fitting fixing portion 39 includes a base portion 41 formed on the upper portion of the main plate portion 35, and extending portions 42 and 42 extending from both side edges of the base portion 41 in the orthogonal direction. The brace mounting bracket 1 of the present embodiment can be screwed onto the outer three surfaces.

  The brace mounting bracket 1 of the present embodiment is a single steel plate molded product formed by bending or pressing a thin steel plate (metal plate) having a thickness of about 2 mm. . As shown in FIGS. 3 to 10, the outer shape of the brace mounting bracket 1 extends from the fixed piece portion 2 to be screwed to the side surface of the hanger 22 and from both side edges of the fixed piece portion 2. Two plate-shaped mounting plate portions 3a and 3b that can fix the end of the brace 17 to the plate surface, and the lower surface of the mounting plate portions 3a and 3b are arranged on the ceiling base material 24a, 24b, and the mutual screwing part 5 extended in the horizontal direction from the one side edge of the fixed piece part 2, and screwed to the mounting plate part 3a of the other brace mounting bracket 1a. As shown in FIGS. 11 and 12, the brace mounting bracket 1 is attached to the intersecting portions 25 of the ceiling base materials 24 a and 24 b one by one at symmetrical positions around the intersecting portions 25.

  As shown in FIGS. 3 and 4, the fixed piece 2 is formed by bending a steel plate inward at a substantially right angle, and has an L shape in plan view with a vertical width of about 80 mm. The fixed piece portion 2 includes a first flat plate portion 6 and a second flat plate portion 7 which are coupled at right angles via a bent portion, and the first flat plate portion 6 and the second flat plate portion 7 are connected to the hanger 22. Screw through-holes 8 used for screwing are formed at a plurality of locations. As shown in FIGS. 11 and 12, in a state where the brace mounting bracket 1 is attached to the intersecting portion 25, the fixed piece portion 2 is laterally covered so as to cover the side surface of the hanger 22 attached to the intersecting portion 25 from two directions. It is addressed and screwed to the metal fitting fixing part 39 of the hanger 22 with a screw (tapping screw) 10.

  As shown in FIGS. 3 and 4, the two mounting plate portions 3 a, 3 b are horizontal from both side edges of the fixed piece portion 2 by bending the steel plate outward at substantially right angles at both side edges of the fixed piece portion 2. It is a vertical flat plate-like portion extending in the direction, and enables the end portion of the brace 17 to be screwed onto the plate surface of each mounting plate portion 3a, 3b. Here, the mounting plate portion 3a extending from the side edge of the first flat plate portion 6 extends from the entire side edge of the first flat plate portion 6 to form a rectangular shape having a lateral width of about 40 mm and a vertical width of about 80 mm. In contrast, the mounting plate portion 3b extending from the side edge of the second flat plate portion 7 has a rectangular cutout portion 9 formed at the upper portion on the base end side. Further, the two mounting plate portions 3a and 3b extend in directions orthogonal to each other in a plan view, and with the brace mounting bracket 1 attached to the intersecting portion 25 as shown in FIGS. One mounting plate portion 3a extends along the longitudinal direction of the cross bar 24b above the cross bar 24b, and the other mounting plate portion 3b extends along the longitudinal direction of the main bar 24a above the main bar 24a. It is configured to extend.

  As shown in FIGS. 3 and 4, the engaging portion 4 is bent at the lower edge of the mounting plate portions 3 a and 3 b in the horizontal direction and then further bent downward so as to be substantially perpendicular to the entire width. It is formed in an L shape by being bent twice. As shown in FIGS. 11 and 12, the engaging portion 4 is a locking ridge of the ceiling base materials 24 a and 24 b located below the mounting plate portions 3 a and 3 b in a state where the brace mounting bracket 1 is attached to the intersecting portion 25. Engage with part 30. The engaging portion 4 is formed with three screw through holes 8 through which the screw 10 to be screwed is inserted along the width direction, and the engaging portion 4 is engaged with the locking ridge 30. In addition, the engaging portion 4 can be screwed onto the side surface of the locking ridge 30.

  As shown in FIGS. 3 and 4, the mutual screwing portion 5 extends in the horizontal direction from the upper side edge of the second flat plate portion 7 of the fixed piece portion 2. Specifically, it is formed in an L shape in plan view by bending the steel plate twice at a substantially right angle at a portion about ¼ from the side edge of the second flat plate portion 7. In addition, the part which forms the mutual screwing part 5 of a steel plate is ensured by forming the notch part 9 in the base end side upper part of the attachment board part 3b. Further, a screw through hole 8 for inserting a screw 10 to be screwed is formed in the mutual screwing portion 5. As shown in FIGS. 11 and 12, the mutual screwing portion 5 is configured to be attached to the mounting plate portion 3 a of the other brace mounting bracket 1 in a state where two brace mounting brackets 1 are mounted at the intersection 25. The two brace mounting brackets 1 can be integrated by screwing the mutual screwing portions 5 to the mounting plate portion 3a of the other brace mounting bracket 1.

  FIG. 13 shows a state in which the brace 17 is installed at the intersection 25 shown in FIGS. The brace 17 is obliquely installed between the intersection 25 and the adjacent suspension bolts 23, 23, and one end of the brace 17 is fixed to the upper end of the suspension bolt 23, and the other end of the attachment plate 3a. The plate is screwed with screws 10. In FIG. 13, reference numeral 26 is an upper mounting bracket for fixing the end of the brace 17 to the suspension bolt 23, and reference numeral 27 is a ceiling slab. As described above, when the brace mounting bracket 1 of this embodiment is attached to the intersecting portion 25, the brace 17 is fixed to the plate surface of the attaching plate portion 3a, and the brace 17 is installed in the extending direction of the attaching plate portion 3a. be able to. Although not shown in FIG. 13, the same applies to the mounting plate portion 3b extending in the depth direction and the front direction in FIG.

  As described above, the brace mounting bracket 1 according to the present embodiment includes the two mounting plate portions 3a and 3b extending in directions orthogonal to each other in a plan view. If attached to the intersecting portion 25 of the materials 24a and 24b, the two attachment plate portions 3a and 3b are extended in an L shape in plan view along the main bar 24a and the cross bar 24b with the intersecting portion 25 as the center. Can do. For this reason, as shown in FIGS. 11 and 12, if one is attached to each symmetrical position with the intersection 25 as the center, the four attachment plate portions 3a and 3b extend in a cross shape around the intersection 25. As shown in FIG. 12, it is possible to fix the end of the brace 17 in the cross direction of the intersecting portion 25 and lay the brace 17 in a cross shape around the intersecting portion 25.

  As described above, the brace mounting bracket 1 of the present embodiment has two pieces of the same shape attached to the intersecting portion 25 of the ceiling base materials 24a and 24b, so that the brace 17 is crossed around the intersecting portion 25. Therefore, the cost of the brace mounting bracket and the ceiling structure can be reduced as compared with the conventional configuration that requires two types of brackets having different shapes. Further, in this embodiment, since the two brace mounting brackets 1 can be mounted on the intersecting portion 25 without distinction, compared to the conventional configuration in which two types of brackets having different shapes need to be mounted in a prescribed order. Easy to work.

  Further, in this embodiment, the two brace mounting brackets 1 are not only screwed to the hanger 22 and the ceiling base materials 24a and 24b, but one mutual screwed portion 5 and the other mounting plate portion 3a are mutually connected. Since they are integrated by screwing, there is an advantage that the brace mounting bracket 1 can be firmly fixed to the hanger 22 and the ceiling base materials 24a and 24b to improve the earthquake resistance.

  In particular, in this embodiment, as shown in FIG. 13, the end of the brace 17 is fixed obliquely from the upper end on the front end side to the lower side on the base end side with respect to the plate surface of the mounting plate portion 3 a. The mutual screwing portion 5 extends in the horizontal direction from the upper portion of the fixed piece portion 2 and is attached and screwed to the upper portion on the base end side of the mounting plate portion 3a of the other brace mounting bracket 1. There is an advantage that the mutual screwing portion 5 and the end portion of the brace 17 can be fixed to the plate surface of the mounting plate portion 3a without causing interference.

  The brace mounting bracket 1a of the present embodiment is obtained by changing the shape of the mounting plate portion and the mutual screwing portion from the first embodiment. In the following description, only the configuration that is different between the present embodiment and the first embodiment will be described, and the components that are the same as those in the first embodiment will be denoted by the same reference numerals in the drawing and the description thereof will be omitted.

  In the brace mounting bracket 1a of the present embodiment, as shown in FIGS. 14 to 21, the mutual screwing portion 5 a extends from the upper side edge of the first flat plate portion 6 of the fixed piece portion 2. Specifically, the mutual screwing portion 5a is formed by extending a portion of the side edge of the first flat plate portion 6 about ¼ from the top in the horizontal direction without bending. As shown in FIG. 22, the mutual screwing portion 5 a is attached to the upper part of the base end side of the mounting plate portion 3 d of the other brace mounting bracket 1 a and is screwed to the mounting plate portion 3 d by the screw 10. In the present embodiment, since the mutual screwing portion 5a extends from the upper side edge of the first flat plate portion 6, the mounting plate portion 3c extending from the side edge of the first flat plate portion 6 Is cut out, and the vertical width is shorter than that of the mounting plate portion 3 d extending from the side edge of the second flat plate portion 7.

  FIG. 22 shows a state in which the brace mounting bracket 1a of the present embodiment is attached to the intersection 25 of the ceiling base materials 24a and 24b shown in FIGS. As in the first embodiment, the brace mounting brackets 1a according to the present embodiment are attached one by one at symmetrical positions with the intersection 25 as the center. Then, the four mounting plate portions 3c and 3d are extended in the cross direction from the crossing portion 25 along the longitudinal direction of the ceiling base materials 24a and 24b, so that the brace 17 is formed in a cross shape around the crossing portion 25. It can be installed in

  Thus, the brace mounting bracket 1a of the present embodiment also has the brace 17 around the intersection 25 of the ceiling base materials 24a and 24b by attaching two brace mounting brackets 1a and 1a having the same shape to the intersection 25. Can be installed in a cross shape. In particular, in the brace mounting bracket 1a of the present embodiment, since the mutual screwing portion 5a is formed without bending the steel plate, there is an advantage that it is easier to manufacture than the mutual screwing portion 5 of the first embodiment. is there.

  As described above, the present invention has been described with reference to a plurality of embodiments. However, the brace mounting bracket of the present invention is not limited to the embodiment described above, and various modifications can be made without departing from the gist of the present invention. Can do. For example, in the above embodiment, the engaging portion 4 of the brace mounting brackets 1 and 1a is configured to be screwed after being engaged with the locking ridges 30 of the ceiling base materials 24a and 24b. Not only the configuration but also the holding base 37 of the ceiling base material 24a, 24b is held in the same manner as the holding tool 37 of the hanger 22 of the above embodiment, so that the ceiling base material 24a, 24b is engaged. Also good.

  Moreover, in the said Example, although the ceiling base materials 24a and 24b support the side edge of the ceiling board 20 with the latching edge part 31, the ceiling base material which concerns on this invention is ceiling with a screw | thread or a tucker. The present invention can also be applied to a ceiling structure in which a ceiling plate is fixed to the bottom surface of the base material.

DESCRIPTION OF SYMBOLS 1,1a Brace mounting bracket 2 Fixed piece part 3a, 3b, 3c, 3d Mounting plate part 4 Engagement part 5, 5a Mutual threading part 6 1st flat plate part 7 2nd flat plate part 8 Screw through-hole 10 Screw 17 Brace 20 Ceiling board 22 Hanger 23 Suspension bolt 24a, 24b Ceiling base material 25 Intersection 30 Locking ridge 39 Bracket fixing part 41 Base part 42 Extension part

Claims (4)

There is a ceiling structure comprising a bowl-shaped ceiling base material assembled in a lattice shape, and a hanger attached to an intersection where the ceiling base material is connected in a cross shape to connect the ceiling base material and the suspension bolt. In the brace mounting bracket that is attached to the intersecting portion and can fix the end of the brace to the intersecting portion,
A fixed piece screwed to the side of the hanger;
Two mounting plate portions each having a flat plate shape, each extending from both side edges of the fixed piece portion, and capable of fixing the end portion of the brace to the plate surface;
It is disposed on the lower edge of each mounting plate portion, and includes an engaging portion that engages with the ceiling base material.
The fixed piece portion is formed by bending the metal plate inward so as to be L-shaped in plan view, and is arranged so as to cover the side surface of the hanger from two directions,
The two mounting plate portions are formed by bending the metal plate outward at both side edges of the fixed piece portion, and the longitudinal direction of the two ceiling base materials connected at right angles at the intersecting portion A brace mounting bracket characterized by being configured to extend along each.   It is provided with a mutual screwing portion that extends in a horizontal direction from one side edge of the fixed piece portion and is screwed to a mounting plate portion of a brace mounting bracket of the same shape that is mounted at a symmetrical position around the intersection. The brace mounting bracket according to claim 1, wherein   The mutual screwing portion extends in a horizontal direction from an upper portion of the fixed piece portion, and is screwed to an upper portion on the base end side of the mounting plate portion of the same-shaped brace mounting bracket. Brace mounting bracket as described. A bowl-shaped ceiling base material assembled in a lattice shape,
The ceiling base material is attached to an intersection where the ceiling base material is connected in a cross shape, and the ceiling base material includes a ceiling base material and a hanger for connecting a suspension bolt,
The ceiling structure characterized by the brace attachment metal fittings of any one of Claims 1 thru | or 3 being attached one by one in the symmetrical position centering on the said cross | intersection part.

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