JP2023083635A - Brace bottom part fixture - Google Patents

Abstract

To provide a brace bottom part fixture which can connect a brace material regardless of the installation position of the brace material.SOLUTION: A brace bottom part fixture 100 can be installed on three parallel ceiling material support members 50 in the direction across the ceiling material support members 50. Sliding the brace bottom part fixture 100 installed on the ceiling material support member 50 in the extending direction of the ceiling material support member 50 enables adjustment of the fitting position on the ceiling material support member 50 according to the installation position of a brace material 1. In particular, a pair of holding plate parts 10 of the brace bottom part fixture 100 have multiple small screw-fixing holes 13 formed over almost their entire area in the longitudinal direction, thus it is possible to select suitable small holes 13 to fix the brace material 1 that is sandwiched between the pair of holding plate parts 10, thereby enabling the connection of the brace material 1 to the brace bottom part fixture 100 regardless of the installation position of the brace material 1.SELECTED DRAWING: Figure 1

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lower brace fitting used to connect the lower ends of braces that reinforce suspended ceilings to ceiling support members.

Conventionally, in a system ceiling structure, ceiling material support members called T-bars are assembled in a grid to form a framework, and suspended ceilings are attached to the lower ends of suspension bolts vertically installed in the superstructure of a building. 2. Description of the Related Art Suspended ceilings are known in which a frame is suspended by connecting T-bars to hanging metal fittings, and a ceiling plate or the like is installed on the frame.
Suspended ceilings, due to their structure, tend to sway due to the horizontal force acting on them during an earthquake, and the swaying could cause damage to the ceiling panels or cause them to fall off.

Therefore, by connecting the upper end to the upper structure of the building and connecting the lower end to the T-bar, reinforcing braces are installed diagonally on the suspended ceiling to suppress rolling during an earthquake. there is
A brace lower fixture used to connect the lower end of the brace to the T-bar is known (see, for example, Patent Document 1). The brace lower fixture of Patent Document 1 is provided with screw holes for two brace members in order to connect the two brace members by screwing them. The screw holes for the two brace members are provided at locations near the center in the longitudinal direction of the lower brace fixture.

Japanese Patent No. 6432784

However, in the case of the brace lower fixture of Patent Document 1, the location where the two brace members are connected is predetermined, so there is an error in the installation position of the brace member whose upper end is connected to the upper structure of the building. When the brace member is installed, or when the installation position of the brace member is changed, it may be difficult to connect the brace member to the brace lower fixture.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a brace lower fixture that can be connected to a brace regardless of the position where the brace is installed.

In order to achieve the above object, the present invention
A brace lower fixture for connecting a lower end of a brace having an upper end connected to a building superstructure to a ceiling support member suspended from the superstructure via a suspension member,
The ceiling material support member has a flange portion and a web portion erected on the upper surface of the flange portion, and has a substantially inverted T shape in cross section. A held portion formed to be wide in the direction is provided,
The brace lower fixture shall:
a pair of holding plate portions arranged substantially parallel with a predetermined interval;
a bottom plate portion on which the pair of holding plate portions are erected;
The pair of holding plate portions are provided with a notch for inserting at least the held portion and the web portion of the ceiling material support member at approximately the center of the holding plate portion in the longitudinal direction, and holding the holding plate portions. A plurality of small holes for screwing the brace lower fixture to the lower end of the brace member are provided over substantially the entire length of the plate,
The brace lower fixture is installed on the ceiling material support member in a direction intersecting with the extending direction of the ceiling material support member in a state in which the held portion and the web portion are inserted through the cutout, The lower end portion of the brace member is configured to be fixed between the pair of holding plate portions.

The brace lower fixture having such a configuration intersects the extending direction of the ceiling material support member in a state in which the held portion and the web portion of the ceiling material support member are inserted into the notches provided in the pair of holding plate portions. The lower end of the brace is fixed between a pair of holding plate portions of the brace lower fixture installed on the ceiling support member. It has become.
In particular, the pair of holding plate portions of this brace lower fixture is provided with a plurality of small holes for screwing over substantially the entire longitudinal direction thereof, and is sandwiched between the pair of holding plate portions. Since it is possible to select the appropriate small holes for fixing the brace material and fix them with screws, the arrangement of the brace lower fixtures can be adjusted along the extending direction of the ceiling material support member to By sandwiching the lower end of the brace member between the holding plate portions, the brace member can be screwed and connected to the brace lower fixture regardless of the installation position of the brace member.

Also preferably:
The brace member is a tubular elongated member exhibiting a symmetrical rectangular shape in cross section,
The interval between the pair of holding plate portions is designed according to the width dimension in the thickness direction of the brace member.

By doing so, the brace material can be suitably sandwiched between the pair of holding plate portions, and the brace material sandwiched between the pair of holding plate portions can be screwed from both sides.
If the brace material can be screwed from both sides, the joint strength can be improved compared to the case where the brace material is screwed from one side, such as the brace lower fixture of Patent Document 1 described above. The load bearing capacity of the structure can be improved.

Also preferably:
The brace lower fixture is configured to be installed at a location where at least three ceiling material support members are arranged substantially parallel to each other,
In a state in which the held portion and the web portion of the ceiling material support member on the central side of the three ceiling material support members are inserted into the notches, the pair of holding plate portions have opposite ends thereof. It has a length reaching the ceiling material support member,
Both ends of the pair of holding plate portions are provided with hook portions that are hooked to the held portions of the ceiling material support members on both sides among the three ceiling material support members.

With such a brace lower fixture, the held portion and the web portion of the ceiling material support member on the central side of the three ceiling material support members arranged in parallel are inserted into the notches of the pair of holding plate portions. In addition, of the three ceiling material support members arranged in parallel, the hooking portions at both ends of the pair of holding plate portions are hooked to the held portions of the ceiling material support members on both sides, and the ceiling material support members are mounted. A brace lower fitting can be installed on the
In other words, the notch in the center of the lower brace fixture in the longitudinal direction and the latching parts on both ends in the longitudinal direction of the lower brace fixture are brought into contact with the three ceiling material support members that are arranged in parallel. Since the lower brace fixture can be installed so as to span over the three ceiling material support members, the brace lower fixture can be installed on the ceiling material support member in a stable posture.

Also preferably:
The bottom plate portion of the brace lower fixture installed on the ceiling material support member in a state in which the held portion and the web portion are inserted into the notch is substantially the flange portion of the ceiling material support member. It should be configured to be arranged adjacent to a flush arrangement.

If the bottom plate portion of the brace lower fixture installed on the ceiling material support member is arranged adjacent to the flange portion of the ceiling material support member so as to be substantially flush with the bottom plate portion, the flat ceiling plate and the flange portion can be easily screwed to each other, so that the ceiling plate can be preferably attached.

ADVANTAGE OF THE INVENTION According to this invention, the brace lower fixture which can be connected with a brace material regardless of the installation position of a brace material is obtained.

It is the figure which showed the brace lower fixture of this embodiment, and is a front view (a), a top view (b), and a side view (c). It is the front view (a) and top view (b) which show the state which installed the brace lower fixture of this embodiment in the ceiling material support member. FIG. 4 is a perspective view showing a state where the brace lower fixture of the present embodiment is installed on the ceiling material supporting member; FIG. 4 is a perspective view showing a mode in which the lower end of the brace is fixed to the brace lower fixture installed on the ceiling material supporting member; FIG. 4 is an explanatory view showing that the position where the brace is fixed to the lower brace fixture can be adjusted according to the installation position of the brace.

An embodiment of a lower brace fixture according to the present invention will now be described in detail with reference to the drawings. However, although various technically preferable limitations are attached to the embodiments described below in order to carry out the present invention, the scope of the present invention is not limited to the following embodiments and illustrated examples.

The brace lower fixture 100 shown in FIG. 1 and the like attaches the lower end of the brace member 1 (see FIG. 4), whose upper end is connected to the upper structure of the building, to the upper structure via suspension bolts and hanging metal fittings (hangers). It is a metal fitting used to connect to the ceiling material support member 50 suspended from the ceiling.

The hanging bolt is vertically fixed with its upper end fixed to the superstructure, and a hanging metal fitting for holding the ceiling material support member 50 is attached to the lower end of the hanging bolt, and the ceiling material is supported via the hanging bolt and the hanging metal fitting. A member 50 is held suspended from the superstructure.
Since such a ceiling structure is well known, it will not be described in detail here, and in the following description, illustration of suspension bolts and suspension fittings will be omitted.

First, the ceiling material support member 50 on which the lower brace fixture 100 is installed will be described.
The ceiling material support member 50 is a long member called a T-bar or the like. For example, as shown in FIGS. The web portion 52 has a substantially inverted T-shape in cross section, and a held portion 53 formed to be wide in the thickness direction is provided at the upper end of the web portion 52 .
A framework in which such ceiling material support members 50 are assembled in a grid pattern is suspended from the upper structure, and the brace lower fixture 100 is installed on the ceiling material support member 50 (framework). be done.
Note that the held portion 53 provided at the upper end of the web portion 52 of the ceiling material support member 50 is a portion held so as to be clamped by the hanging bracket. It is easy to suspend and hold the material supporting member 50 .

The lower brace fixture 100 of this embodiment is configured to be installed at a location where at least three long ceiling material support members 50 are arranged substantially parallel to each other.
Also, the brace lower fixture 100 is installed on the ceiling material support member 50 in a direction that intersects the extending direction (longitudinal direction) of the ceiling material support member 50 . In this embodiment, the lower brace fixture 100 is installed in a direction orthogonal to the extending direction (longitudinal direction) of the ceiling material support member 50 .

As shown in FIGS. 1 to 4, for example, the brace lower fixture 100 of the present embodiment includes a pair of holding plate portions 10 arranged substantially parallel to each other with a predetermined interval, and a pair of holding plate portions 10. and a bottom plate portion 20 that is erected.
Fixed lower end portions 10a are provided at the lower edges of the pair of holding plate portions 10 and are bent substantially at right angles. there is

A pair of holding plate portions 10 are fixed to the bottom plate portion 20 in an upright posture.
The bottom plate portion 20 is a member that maintains a state in which a pair of holding plate portions 10 erected on the upper surface of the bottom plate portion 20 are arranged substantially parallel to each other with a predetermined gap therebetween.
The bottom plate portions 20 are arranged in a pair so as to sandwich a notch 11 (described later) of the holding plate portion 10 .
The bottom plate portion 20 is, for example, a member formed by bending the edge of a metal plate having a predetermined shape, and the outer edge of the bottom plate portion 20 is formed in an upright manner.
Since the outer edge of the bottom plate portion 20 is formed in an upright manner, the strength of the bottom plate portion 20 is improved.
The pair of holding plate portions 10 are arranged so as to span the pair of bottom plate portions 20, and the outer edges of the bottom plate portions 20 where the pair of holding plate portions 10 span are notched. ing. Since the outer edge of the bottom plate portion 20 corresponding to the location where the pair of holding plate portions 10 are spanned is notched, the span of the holding plate portions 10 is not hindered.

The pair of holding plate portions 10 is provided with a notch 11 for inserting at least the held portion 53 and the web portion 52 of the ceiling material support member 50 at approximately the center of the holding plate portions 10 in the longitudinal direction. The notch 11 is provided on the lower edge side of the pair of holding plate portions 10 .
The notch 11 of the present embodiment has a substantially inverted T shape and can be inserted up to the flange portion 51 of the ceiling material support member 50 . The shape and size of the notch 11 are arbitrary, and may be formed according to the shape of the ceiling material support member 50 (T-bar).
The held portion 53 and the web portion 52 of the ceiling material support member 50 on the center side of the three ceiling material support members 50 arranged in parallel are inserted into the notch 11, and the center side The held portion 53 and the web portion 52 of the ceiling material support member 50 are inserted into the notch 11 and installed in a direction intersecting the extending direction of the ceiling material support member 50, and the pair of holding plate portions 10 has such a length that both ends thereof reach the ceiling material supporting members 50 on both sides.

At both ends of the pair of holding plate portions 10, hook portions 12 are provided to be hooked to the held portions 53 of the ceiling material support members 50 on both sides of the three ceiling material support members 50 arranged in parallel. It is
Specifically, side cutouts 12a for avoiding interference with the ceiling material support members 50 on both sides are provided at both ends of the pair of holding plate portions 10, and the side cutouts 12a and the hooking portions 12 are provided.
The hooking portion 12 is formed in a hook shape having a projecting piece protruding downward.
The hooking portion 12 is hooked to the held portion 53 of the ceiling material support member 50 so as to come into contact with one side surface and the upper end surface of the held portion 53 .

The pair of holding plate portions 10 are provided with a plurality of small holes 13 for screwing the lower brace fitting 100 to the lower end portion of the brace member 1 over substantially the entire length of the holding plate portions 10 . ing.
Specifically, a plurality of small holes 13 are provided so as to form a row in the longitudinal direction of the holding plate portion 10 and also to form a row in the height direction of the holding plate portion 10 . The plurality of small holes 13 are provided at intervals of about 30 mm in length and width.
When the plurality of small holes 13 provided in the holding plate portion 10 are regarded as an oblique row, the row forms an angle of approximately 45° with the longitudinal direction of the holding plate portion 10 .

The pair of holding plate portions 10 are portions that come into contact with the side surfaces of the brace member 1 , and the brace member 1 is fixed to the holding plate portions 10 .
Specifically, the lower end portion of the brace material 1 is sandwiched between the opposing holding plate portions 10, and the lower end portion of the brace material 1 sandwiched between the pair of holding plate portions 10 is screwed. It is stopped so that the brace material 1 is fixed to the brace lower fixture 100 .
That is, the spacing between the pair of holding plate portions 10 is designed according to the width dimension of the brace member 1 in the thickness direction.

Here, the brace member 1 fixed to the lower brace fixture 100 (pair of holding plate portions 10) of this embodiment will be described.
The brace material 1 is a steel material that is obliquely installed between the superstructure of the building and the suspended ceiling (ceiling material support member 50) in order to reinforce the suspended ceiling.
As shown in FIG. 4, the brace member 1 used in the present embodiment is a tubular long member having a symmetrical rectangular shape in cross section. For example, the brace member 1 is a tubular long member having a rectangular or square cross section.
The brace member 1 is fixed to the lower brace fixture 100 in a state in which the holding plate portion 10 is in contact with one pair of surfaces of two pairs of opposing surfaces.
That is, the spacing between the pair of holding plate portions 10 in the brace lower fixture 100 is designed according to the width dimension of the other pair of faces of the brace member 1 in the thickness direction.
In this embodiment, the brace member 1 having a square cross section and a width of 50 mm is used.

Next, a procedure for connecting the brace material 1 to the ceiling material supporting member 50 by the brace lower fixture 100 of the present embodiment will be described.

First, as shown in FIG. 3, among the three ceiling material support members 50 arranged in parallel, the held portion 53 and the web portion 52 of the central ceiling material support member 50 are inserted into the notches 11, The lower brace fixtures 100 are installed so that the hooking portions 12 are hooked to the held portions 53 of the ceiling material support members 50 on both sides of the three ceiling material support members 50 arranged in parallel.
At this time, the brace lower fixture 100 is installed in a direction that intersects (perpendicularly) with the extending direction of the three ceiling material support members 50 that are arranged in parallel. , the lower brace fixture 100 is installed.
The bottom plate portion 20 of the brace lower fixture 100 installed on the ceiling material support member 50 in this manner is arranged adjacent to the flange portion 51 of the ceiling material support member 50 so as to be substantially flush with it. ing.

The lower brace fixture 100 installed on the three ceiling material support members 50 is slid in the extending direction of the ceiling material support members 50 to adjust the mounting positions of the ceiling material support members 50 . Here, the position of the ceiling material support member 50 is adjusted by sliding it in the front-rear direction in FIG.
Specifically, alignment is performed to adjust the placement of the brace lower fixture 100 according to the installation position of the brace member 1 whose upper end is connected to the upper structure of the building.
In this embodiment, the brace lower fixture 100 is mounted in such a manner that the lower edges of the pair of holding plate portions 10 are in contact with the upper end surfaces of the held portions 53 formed at the upper ends of the webs 52 of the ceiling material support member 50 . is placed, the posture of the brace lower fixture 100 installed on the ceiling material support member 50 can be stabilized, and the brace lower fixture 100 can be smoothly slid. can be done.
In addition, since the hooking portions 12 at both ends of the lower brace fixture 100 are hooked to the held portions 53 of the ceiling material support members 50 on both sides, the hooking sections 12 serve as guides for the lower brace fixture 100. slide movement can be stabilized.
If the lower end of the brace member 1 interferes with the adjustment of the arrangement by sliding the brace lower fixture 100, the brace member 1 may be retracted to the upper structure side, for example. do it.

Next, the lower end of the brace 1 is set between the pair of holding plate portions 10 of the brace lower fixture 100 aligned on the ceiling material support member 50 . The lower end portion of the brace member 1 may be sandwiched between the pair of holding plate portions 10 after the brace lower fixture 100 is aligned.
Then, as shown in FIG. 4, screws 3 are driven from the holding plate portion 10 toward the brace member 1 to screw the holding plate portion 10 and the brace member 1 together.
Here, screws 3 are driven in at three locations on one side of one brace member 1, and each brace member is screwed at six locations.

In particular, since the pair of holding plate portions 10 of the brace lower fixture 100 are provided with a plurality of small holes 13 for screwing over substantially the entire length thereof, the space between the pair of holding plate portions 10 is It is possible to select an appropriate small hole 13 for fixing the brace material 1 sandwiched between the It can be suitably fixed.
For example, as shown in FIG. 5, even if there is an error in the installation position of the brace material 1, or even if the installation position of the brace material 1 is changed, the brace material 1 can be suitably adjusted according to the installation position of the brace material 1. can be secured to the brace lower fixture 100 .

In this way, the work of screwing and fixing the brace member 1 to the brace lower fixture 100 attached on the ceiling material support member 50 is completed, and the brace member 1 whose upper end is connected to the upper structure of the building is completed. The lower end is connected to the ceiling material support member 50 .

After that, the ceiling plate is screwed to the bottom plate portion 20 of the brace lower fixture 100 and the flange portion 51 of the ceiling material supporting member 50 to attach the ceiling plate of the suspended ceiling.

As described above, the lower brace fixture 100 of the present embodiment is placed on the three ceiling material support members 50 arranged in parallel in a direction that intersects the ceiling material support members 50. can be easily installed.
In addition, the brace lower fixture 100 installed on the three ceiling material support members 50 is slid in the extending direction of the ceiling material support member 50, and the ceiling material is installed according to the installation position of the brace material 1. The attachment position of the support member 50 can be easily adjusted.
The pair of holding plate portions 10 of the brace lower fixture 100 of the present embodiment are provided with a plurality of small holes 13 for screwing over substantially the entire length thereof. Since it is possible to select an appropriate small hole 13 for fixing the brace material 1 sandwiched between 10 and screw it, the brace material 1 can be attached to the lower part of the brace regardless of the installation position of the brace material 1. The brace 1 can be connected to the ceiling support member 50 via the lower brace fixture 100 .

Also, the bottom plate portion 20 of the brace lower fixture 100 installed on the ceiling material support member 50 is arranged adjacent to the flange portion 51 of the ceiling material support member 50 so as to be substantially flush with it. Therefore, the flat ceiling plate can be easily screwed to the bottom plate portion 20 and the flange portion 51, respectively, and the ceiling plate can be preferably attached.

In addition, the brace member 1 sandwiched between the pair of holding plate portions 10 can be screwed from both sides of the brace lower fixture 100. As shown, the joint strength is improved compared to the case where the brace member having a substantially C-shaped cross section is screwed from one side, and the strength of the suspended ceiling structure can be improved.
Specifically, as a result of the ceiling unit test, it was found that the ultimate yield strength was 25 kN or more and the rigidity was 2000 kN/m or more. This is a general ceiling material consisting of two sheets of gypsum board, and the natural period of the ceiling is 0.1 seconds or less.
In order to enable the brace member 1 to be screwed from both sides, the present inventor decided to use a tubular brace member 1 having a symmetrical rectangular shape in cross section.

As described above, the brace lower fixture 100 of the present embodiment can be connected to the brace member 1 regardless of the installation position of the brace member 1, and the brace member 1 can be connected to the ceiling member support member 50. can be connected.

It should be noted that the application of the present invention is not limited to the above-described embodiments, and can be modified as appropriate without departing from the gist of the present invention.

1 Brace Material 3 Screw 10 Retaining Plate (Pair of Retaining Plate)
10a Fixed lower end 11 Notch 12 Hooking part 12a Side notch 13 Small hole 20 Bottom plate part 50 Ceiling material support member 51 Flange part 52 Web part 53 Retained part 100 Brace lower fixture

Claims (4)

A brace lower fixture for connecting a lower end of a brace having an upper end connected to a building superstructure to a ceiling support member suspended from the superstructure via a suspension member,
The ceiling material support member has a flange portion and a web portion erected on the upper surface of the flange portion, and has a substantially inverted T shape in cross section. A held portion formed to be wide in the direction is provided,
The brace lower fixture shall:
a pair of holding plate portions arranged substantially parallel with a predetermined interval;
a bottom plate portion on which the pair of holding plate portions are erected;
The pair of holding plate portions are provided with a notch for inserting at least the held portion and the web portion of the ceiling material support member at approximately the center of the holding plate portion in the longitudinal direction, and holding the holding plate portions. A plurality of small holes for screwing the brace lower fixture to the lower end of the brace member are provided over substantially the entire length of the plate,
It is installed on the ceiling material support member in a direction intersecting with the extending direction of the ceiling material support member in a state in which the held portion and the web portion are inserted into the notch, and between the pair of holding plate portions. A lower brace fitting, wherein the lower end of the brace is fixed to the lower end of the brace. The brace member is a tubular elongated member exhibiting a symmetrical rectangular shape in cross section,
2. The brace lower fixture according to claim 1, wherein the spacing between the pair of holding plate portions is designed according to the width dimension of the brace member in the thickness direction. The brace lower fixture is configured to be installed at a location where at least three ceiling material support members are arranged substantially parallel to each other,
In a state in which the held portion and the web portion of the ceiling material support member on the central side of the three ceiling material support members are inserted into the notches, the pair of holding plate portions have opposite ends thereof. It has a length reaching the ceiling material support member,
At both ends of the pair of holding plate portions, hooking portions that are hooked to the held portions of the ceiling material support members on both sides of the three ceiling material support members are provided. 3. A brace lower fitting according to claim 1 or 2. The bottom plate portion of the brace lower fixture installed on the ceiling material support member in a state in which the held portion and the web portion are inserted into the notch is substantially the flange portion of the ceiling material support member. A lower brace fitting according to any one of claims 1 to 3, adapted to be arranged adjacent to a flush arrangement.

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