Brace attachment hardware

Abstract

To provide a brace attachment hardware that can be assembled to a suspended ceiling that is suspended from a structural frame, while also improving its strength.SOLUTION: There is provided a brace attachment hardware 1 that attaches one end of brace 2, which is a reinforcement member of a suspended ceiling that is suspended by a support member 4 that hangs down from a structural frame 3, to the structural frame 3, which comprises: a fixed part 10 that has a predetermined length and is fixed to the structural frame 3; and a base member 7 having side wall portions 11, 12 that hang down from both sides in the width direction of the fixing portion 10; and a connecting member 9 that is rotatably connected to the base member 7 and fixed to one end of the brace 2, where the fixing portion 10 has a notch 16 that opens at one end in the longitudinal direction and into which the support member 4 is inserted.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a brace mounting fixture, and more particularly to a fixture for mounting a brace member, which improves the support strength of a suspended ceiling suspended from a structural frame, to a structural frame. [Background technology]

[0002] Conventionally, a suspended ceiling is known in which a ceiling is suspended by fixing a panel to a plurality of rafters arranged in parallel at a predetermined interval in the horizontal direction and rafter supports arranged perpendicular to the rafters, and then fixing the panel to a suspension bolt that is fixed to a structure and suspended from the structure. Such a suspended ceiling sways laterally during an earthquake because the horizontal restraining force is small. Therefore, in Patent Document 1 and Patent Document 2, in order to suppress the lateral swaying of the suspended ceiling, the structure or the suspension bolts are fixed to the rafters, rafter supports, or panels by braces inclined relative to the vertical direction.

[0003] In addition, in Patent Document 1, in order to improve the workability of assembling the brace, the brace is fixed to the frame via an upper metal fitting that can change the inclination angle of the brace. Specifically, the upper metal fitting is composed of a fixed plate fixed to the frame, a pair of support plates that are arranged facing each other and hang down from the fixed plate, and a connecting shaft to which the upper end of the brace is connected and which is supported rotatably by the support plate. Then, after the upper end of the brace is connected to the upper metal fitting fixed to the frame, the lower end of the brace is connected to the lower metal fitting fixed to the joist and the joist support. The lower end of the hanging bolt is connected to the lower metal fitting.

[0004] Patent Document 2 describes an upper metal fitting configured to assemble a brace while the ceiling is suspended from the framework. This upper metal fitting is configured by fastening a U-shaped first division body and a second division body with screws, and the first division body has a U-shaped cutout portion that opens outward in the width direction so that a suspension bolt can be inserted from one side in the width direction, and the second division body has a U-shaped cutout portion that opens to the tip side in the longitudinal direction. The upper and lower surfaces of the first division body are formed horizontally, and the side wall surface that connects the upper and lower surfaces is formed in an arc shape, and a long hole having a predetermined length in the vertical direction is formed in the side wall surface. A seat plate having a female thread is provided on the inside of the side wall surface so as to be movable along the side wall surface, and an upper screw shaft provided at the upper end of the brace is configured to be screwed into the female thread portion of the seat plate. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Patent No. 6494401 [Patent Document 2] Patent No. 6329381 Summary of the Invention [Problem to be solved by the invention]

[0006] In the upper fitting described in Patent Document 1, the connecting shaft to which the upper end of the brace is connected is rotatably supported by the support plate, so that the inclination angle of the brace can be changed and restrictions on the installation position of the brace can be eliminated. On the other hand, when the upper fitting is installed near the upper part of an existing suspension bolt, the upper end of the suspension bolt and the upper end of the brace are inevitably separated from each other to avoid interference between the upper fitting and the suspension bolt. In other words, there is a concern that the upper fitting cannot be installed near the upper end of the existing suspension bolt.

[0007] In addition, when the suspension bolts are hung from beams extending on one side in the horizontal direction, the brace for suppressing the lateral sway of the suspended ceiling is attached so as to be perpendicular to the longitudinal direction of the beams in the horizontal direction. In other words, the suspension bolts and the upper fittings are attached side by side within the width of the beams as the framework, so the attachment area of ​​the upper fittings is small. Therefore, if the upper fittings cannot be attached near the suspension bolts, there is a concern that it will be impossible to fix the upper fittings to the framework, more specifically, to fix the upper ends of the braces.

[0008] In addition, the upper metal fitting described in Patent Document 2 is designed to integrate the first and second divisions with screws and then to fix the first and second divisions to the frame in this state, which may reduce the workability of assembling the brace to the frame. Furthermore, the upper metal fitting described in Patent Document 2 has a U-shaped notch that opens outward in the width direction so that a hanging bolt can be inserted from one side in the width direction of the first division, so that it is not possible to form a side wall surface that hangs down from the outer edge of the width direction of the first division, or even if such a side wall surface is formed, a notch is formed in part of the side wall surface. Therefore, it is not possible to improve the strength of the first division in the longitudinal direction, and there is a technical problem in improving the function of suppressing the lateral swaying of the suspended ceiling.

[0009] The present invention has been made in consideration of the above circumstances, and has an object to provide a brace mounting fixture that can improve reinforcing strength and can be attached to a suspended ceiling suspended from a structural body. [Means for solving the problem]

[0010] In order to solve the above problems, the brace mounting bracket of the present invention is a brace mounting bracket that mounts one end of a brace, which is a reinforcing member of a suspended ceiling suspended by a support member hanging down from a main body, to the main body, and comprises a fixing portion of a predetermined length that is fixed to the main body, a base member having side wall portions hanging down from both sides in the width direction of the fixing portion, and a connecting member that is rotatably connected to the base member and fixed to one end of the brace, and is characterized in that the fixing portion has a notch that opens at one end in the longitudinal direction and into which the support member is inserted (Claim 1).

[0011] When the ceiling is already suspended from the framework, the brace mounting bracket configured in this way is attached to the framework by moving the base member so that the support member passes through the notch. After that, the brace is attached by abutting it against the connecting member, and the lower end of the brace is attached to the ceiling while adjusting the inclination angle of the brace.

[0012] In this invention, it is preferable that the cutout portion is composed of an insertion portion having a predetermined length from one end of the fixed portion and a guide portion formed from the end of the insertion portion in the width direction of the fixed portion (Claim 2).

[0013] The brace mounting bracket configured in this manner moves the base member until the support member reaches the guide portion, and then fixes the base member to the main body while pressing down to limit its movement in the width and vertical directions.

[0014] In this invention, it is preferable that the pressing member further comprises a pressing member that pinches the support member located at an end of the cutout portion between the cutout portion and the pressing member (Claim 3). It is also preferable that the pressing member comprises a pressing cutout portion that opens at one end, and the pressing member is configured to pinch the support member between the cutout portion and the pressing cutout portion (Claim 4). It is also preferable that the pressing member further comprises a pressing side wall portion that pinches the side wall portion of the base member (Claim 5). It is also preferable that the side wall portion of the base member is formed with a slit of a predetermined length in the longitudinal direction, and the pressing member comprises a locking portion that is inserted into the slit and engages in the vertical direction (Claim 6).

[0015] The brace mounting bracket configured in this manner moves the base member until the support member reaches the guide portion, and then fixes the base member and the pressing member to the frame.

[0016] In this invention, it is preferable that one end of the connecting member is interposed between the opposing side wall portions, the side wall portions have a through hole, and are provided with a bolt inserted from one side of the side wall portions and protruding from the other side of the side wall portions, and a nut screwed onto the tip of the bolt protruding from the other side of the side wall portions (Claim 7).

[0017] In a brace mounting bracket configured in this manner, with the base member and the connecting member aligned, a bolt is inserted into the through hole and a nut is tightened onto the tip of the bolt, thereby rotatably assembling the connecting member to the base member.

[0018] In the present invention, it is preferable that a cylindrical member through which the bolt passes is provided between the opposing side wall portions (claim 8).

[0019] The brace mounting bracket configured in this manner aligns the base member and the connecting member, and then places a tubular member between the opposing side wall portions. After that, a bolt is inserted into the through hole and into the tubular member, and a nut is tightened onto the tip of the bolt to rotatably assemble the connecting member to the base member.

[0020] In the present invention, it is preferable that a center line of the brace in the longitudinal direction coincides with center lines of the base member and the connecting member in the longitudinal direction (claim 9).

[0021] When an earthquake or the like occurs, the brace mounting bracket constructed in this manner is subjected to only a load in the direction of rotation of the brace between the bracket and the brace.

[0022] In this invention, it is preferable that the base member is fixed by clamping the fixing portion between the base member and the main body by a nut screwed onto the support member or a nut screwed onto a bolt protruding from the main body, and that a washer for improving the bending rigidity of the fixing portion is interposed between the nut and the fixing portion (Claim 10). Furthermore, it is preferable that the connecting member is rotatably connected to one side of the side wall portion of the base member in the longitudinal direction, the base member is clamped between the main body at one side of the fixing portion in the longitudinal direction by a nut screwed onto the support member, and the base member is fixed by clamping between the main body at the other side of the fixing portion in the longitudinal direction by a nut screwed onto a bolt protruding from the main body, and the washer is provided at a location closer to the position where the connecting member is fixed, between the location where the fixing portion is clamped between the main body by the nut screwed onto the support member and the location where the fixing portion is clamped between the main body by a nut screwed onto the bolt protruding from the main body (Claim 11).

[0023] A brace mounting bracket configured in this manner has improved bending rigidity at the fixing portion where the washer is provided. Effect of the Invention

[0024] According to the present invention, as configured above, the following remarkable effects can be obtained.

[0025] (1) According to the invention described in claim 1, the base member can be moved so that the support member passes through the notch portion formed in the fixing portion, and the brace mounting bracket can be fixed to the frame. Therefore, even if the ceiling is already suspended from the frame, the upper end of the brace can be attached to the frame in a state where it is close to the upper end of the support member. In addition, the notch portion is formed in the fixing portion, and there is no need to form a notch portion in the side wall portion. Therefore, the bending strength and buckling strength of the base member can be improved. As a result, the upper end of the brace can be prevented from shaking during an earthquake, and the lateral shaking of the suspended ceiling can be suppressed. Furthermore, since the connecting member is attached to the base member so as to be rotatable, the inclination angle of the brace can be adjusted when the lower end of the brace is fixed to the ceiling, and the degree of freedom of installation of the brace can be improved.

[0026] (2) According to the invention described in claim 2, by moving the base member until the support member reaches the guide section, it is possible to suppress the base member from moving in the longitudinal direction when the base member is attached to the frame. In addition, when the brace mounting bracket is attached, the load in the direction in which the support member moves in the longitudinal direction of the base member can be received by the inner wall surface of the guide section, thereby improving the strength of the brace mounting bracket.

[0027] (3) According to the inventions described in claims 3 to 6, the support member is sandwiched between the notch formed in the base member and the pressing notch formed in the pressing member, so that the support member can be prevented from moving in the width direction of the base member. Also, when a slit is formed in the side wall of the base member and a locking portion to be inserted into the slit is formed in the pressing member, the pressing member can be prevented from coming off during the process of assembling the pressing member to the base member, so that the workability of installing the brace mounting bracket can be improved and the strength can be improved.

[0028] (4) According to the inventions described in claims 7 and 8, the base member can be rotatably connected to the connecting member by forming a through hole in the side wall of the base member and fastening the connecting member to the base member with a bolt and nut. In addition, when a cylindrical member through which a bolt passes is provided between the side wall portions, the base member can bear a compressive load caused by fastening the connecting member with a bolt and nut, and narrowing of the gap between the side wall portions can be prevented.

[0029] (5) According to the invention described in claim 9, the center line of the brace in the longitudinal direction coincides with the center lines of the base member and the connecting member in the longitudinal direction. This makes it possible to suppress torsional loads and bending loads from acting on the brace during an earthquake, thereby improving the durability and earthquake resistance of the brace.

[0030] (6) According to the inventions of claims 10 and 11, by providing a washer on the fixing part, the bending rigidity of the fixing part at the location where the washer is provided is improved, so that even if a bending load acts on the fixing part from the brace during an earthquake, the amount of deflection of the base member (fixing part) can be reduced, in other words, the plastic deformation of the base member can be suppressed. In other words, the support strength of the brace can be improved. [Brief description of the drawings]

[0031] [Figure 1] 1A is a front view showing a cross section of a portion of a brace mounting bracket according to the present invention in a mounted state; FIG. 1B is an enlarged cross-sectional view of part I in FIG. 1A; and FIG. 1C is a cross-sectional view taken along line II-II in FIG. [Diagram 2] FIG. 2 is a left side view of the brace mounting bracket shown in FIG. [Diagram 3] FIG. 2 is a perspective view showing a base member in the present invention. [Figure 4] 3A, 3B, and 3C are a front view, a plan view, and a right side view, respectively, for explaining the configuration of a base member. [Diagram 5] FIG. 2 is a perspective view showing a pressing member in the present invention. [Figure 6]4A, 4B, and 4C are a front view, a plan view, and a right side view, respectively, for explaining the configuration of a pressing member. [Figure 7] FIG. 2 is a perspective view showing a connecting member according to the present invention. [Figure 8] 3A, 3B, and 3C are a front view, a plan view, and a right side view for explaining the configuration of a connecting member. [Figure 9] 9 is a cross-sectional view taken along line IX-IX in FIG. 8. [Figure 10] 13 is a plan view showing a process of assembling the hanging bolt to the base member. FIG. [Figure 11] 13 is a plan view showing a process of assembling the pressing member to the base member. FIG. [Figure 12] FIG. 11 is a perspective view showing another configuration of the base member. [Figure 13] 13A, 13B, and 13C are a front view, a plan view, and a right side view, respectively, for explaining another configuration of the base member. [Figure 14] FIG. 11 is a perspective view showing another configuration of the pressing member. [Figure 15] 13A, 13B, and 13C are a front view, a plan view, and a right side view, respectively, for illustrating another configuration of the pressing member. [Figure 16] 16A, 16B, and 16C are a front view, a plan view, and a right side view, respectively, showing a state in which the pressing member shown in FIG. 15 is assembled to the base member shown in FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0032] 1 and 2 show an example of the mounting state of the brace mounting bracket in the embodiment of the present invention. The brace mounting bracket 1 shown in Fig. 1 and Fig. 2 is configured to connect a brace 2 having a rectangular cross section tubular shape for suppressing the horizontal shaking of a suspended ceiling to a frame 3. This suspended ceiling can be configured in the same manner as a conventionally known suspended ceiling, for example, a ceiling is formed by rafters arranged parallel to each other at a predetermined interval in the horizontal direction, rafter supports fixed to each rafter perpendicularly intersecting each rafter in the horizontal direction, and a panel attached to the underside of the rafters and the rafter supports, and the lower ends of a plurality of hanging bolts 4 as support members suspended from the frame 3 are connected to the rafters, the rafter supports, or the panel.

[0033] Since the suspended ceiling suspended by the suspension bolts 4 as described above may sway laterally during an earthquake or the like, a brace 2 is provided as a reinforcing member for improving the lateral strength of the suspended ceiling. The brace 2 is provided at an angle to the horizontal plane, and its lower end is connected to the upper surface of the suspended ceiling and the other end is connected to the framework 3. The brace mounting fixture in the embodiment of the present invention is for connecting the framework 3 and the brace 2 as described above, and for convenience, the ceiling is not shown in Figures 1 and 2. The suspension bolts 4 are composed of anchor bolts 5, and double nuts 6 are screwed into the suspension bolts 4 to firmly secure them.

[0034] As shown in Figures 1 and 2, the brace mounting bracket 1 is composed of a base member 7 fixed to the main body 3, a pressure member 8 for restricting the relative movement between the hanging bolt 4 and the base member 7, and a connecting member 9 having one end rotatably attached to the base member 7 and having the other end to which the upper end of the brace 2 is fixed.

[0035] The base member 7 is composed of a fixing part 10 that is horizontally disposed and formed into a rectangular shape as shown in Figures 3 and 4, and side walls 11, 12 that hang down from both sides in the width direction of the fixing part 10. A through hole 13 is formed in the fixing part 10, and as shown in Figures 1 and 2, the fixing part 10 and the frame 3 are fixed to each other by inserting an anchor bolt 14 attached to the frame 3 into the through hole 13 and screwing a nut 15 into the through hole 13.

[0036] Also, an L-shaped notch 16 is formed in the fixed part 10. Specifically, the notch 16 is formed by an insertion part 16a having a predetermined length in the longitudinal direction of the fixed part 10 and opening at one end of the fixed part 10 from a position shifted outward from the central part in the width direction of the fixed part 10 among the end parts on one side in the longitudinal direction of the fixed part 10, and a guide part 16b formed from the end of the insertion part 16a toward the center in the width direction of the fixed part 10. This notch 16 is for inserting (guiding) the suspension bolt 4, and the width of the insertion part 16a and the guide part 16b is formed slightly larger than the outer diameter of the suspension bolt 4. That is, the fixed part 10 is moved along the longitudinal direction to insert the suspension bolt 4 into the insertion part 16a, and in this state, the fixed part 10 is moved in the width direction to engage the fixed part 10 and the suspension bolt 4 so that the suspension bolt 4 is located in the center in the width direction of the fixed part 10.

[0037] The side walls 11, 12 are integrally formed with the fixed part 10. Specifically, a metal plate-shaped blank is pressed to punch out the through hole 13 and the notch 16 from the base material, and the blank is further pressed and folded to form the side walls 11, 12. The side walls 11, 12 are configured so that their height (hanging amount) increases from one side to the other side in the longitudinal direction of the fixed part 10. That is, the lower ends of the side walls 11, 12 are formed at an incline. The through holes 17, 18 are formed on the other side (higher side) of the side walls 11, 12.

[0038] The pressing member 8 is attached to the base member 7 configured as described above. This pressing member 8 is formed by bending a T-shaped plate member, and is composed of a flat plate portion 19, a folded end portion 20 formed by folding one end portion of the flat plate portion 19 downward in the vertical direction, and pressing side walls 21, 22 formed by further folding both ends of the folded end portion 20 in the width direction of the pressing member 8, as shown in Figures 5 and 6.

[0039] The flat plate portion 19 is configured to be assembled by overlapping it on the fixing portion 10 of the base member 7, and a U-shaped presser notch portion 23 is formed at one end in the longitudinal direction from the tip toward the longitudinal direction. This presser notch portion 23 is configured to sandwich the suspension bolt 4 between itself and the notch portion 16 when the presser member 8 is assembled to the base member 7. Therefore, the width of the presser notch portion 23 is formed to be larger than the outer diameter of the suspension bolt 4. In the example shown here, the width of the presser notch portion 23 is formed to be slightly larger than the width of the notch portion 16.

[0040] The bent end 20 is formed by bending the flat plate portion 19 perpendicularly, and has a connecting portion 20a having a length equivalent to the plate thickness of the base member 7 on both sides in the width direction. The end of the connecting portion 20a in the width direction of the pressing member 8 is further bent to form the pressing side wall portions 21, 22. The distance between the inner surfaces of the pressing side wall portions 21, 22 facing each other is formed to be approximately the same as the distance between the outer surfaces of the side wall portions 11, 12. That is, the pressing member 8 is assembled to the base member 7 so that the pressing side wall portions 21, 22 sandwich the side wall portions 11, 12. In other words, the pressing member 8 has a slit (gap S) into which the side wall portions 11, 12 of the base member 7 are inserted in a plan view.

[0041] Like the above-mentioned base member 7 and pressing member 8, the connecting member 9 is also formed by bending a plate member. Figures 7 to 9 show diagrams for explaining the configuration of the connecting member 9, which is composed of a flat portion 24 and side wall portions 25 and 26 formed by bending both sides in the width direction of the flat portion 24.

[0042] The flat portion 24 is formed with a width equal to that of the brace 2 so as to come into contact with the upper surface 2a of the brace 2, and is bent so that its tip portion 24a is positioned between the opposing side wall portions 25, 26. This tip portion 24a is formed to abut against the tip of the brace 2 for positioning.

[0043] Similarly, the side wall portions 25, 26 are formed to a height equal to that of the brace 2 so as to contact the side surfaces 2b, 2c of the brace 2. Three through holes 28 are formed in each of the side wall portions 25, 26, into which drill screws 27 that connect the connecting member 9 to the brace 2 are inserted. Furthermore, the side wall portions 25, 26 are formed to protrude in the longitudinal direction of the flat portion 24, and a through hole 30 is formed at the tip thereof, into which a bolt 29 for connecting the connecting member 9 to the base member 7 is inserted.

[0044] When a horizontal load acts on the suspended ceiling during an earthquake or the like, a tensile load acts on the side walls 25, 26 from the bolts 29. Therefore, the distance (shortest distance) between the outer edge of the part of the side walls 25, 26 protruding from the flat part 24 and the through hole 30 is set to be equal to or greater than a length that prevents the side walls 25, 26 from breaking when a tensile load predicted during an earthquake or the like acts on the side walls 25, 26. Therefore, in the example shown in Figs. 7 to 9, the part of the side walls 25, 26 protruding from the flat part 24 is formed in a rectangular shape. The protruding part may be tapered so that it gradually decreases, or the tip may be formed into an arc surface.

[0045] Next, a method of assembling the brace mounting bracket 1 will be described. The brace mounting bracket 1 shown in FIG. 1 is first assembled so that the connecting member 9 rotates relative to the base member 7. Specifically, the through holes 17, 18 formed in the base member 7 and the through hole 30 formed in the connecting member 9 are aligned with each other, and the tips of the side walls 25, 26 of the connecting member 9 are interposed between the side walls 11, 12 of the base member 7. In this state, a bolt 29 is inserted from one side of the connecting member 9 to the other side, and a nut 31 is screwed onto the tip of the bolt 29 protruding from the other side to assemble the base member 7 and the connecting member 9 into a unit. At this time, in order to prevent the gap between the side walls 11, 12 of the base member 7 from narrowing, more specifically, to receive the compressive load of the side walls 25, 26 by the bolt 29 and the nut 31, in the example shown in FIG. 1, a cylindrical member 32 through which the bolt 29 passes is interposed between the side walls 25, 26 of the connecting member 9. By connecting the base member 7 and the connection member 9 in this manner, the center lines of the base member 7 and the connection member 9 in the longitudinal direction are aligned with each other.

[0046] Next, in order to attach the unitized base member 7 to the skeleton 3, the anchor bolt 14 is attached to the skeleton 3. Then, the double nut 6 fixing the hanging bolt 4 is loosened, and the base member 7 is placed between the double nut 6 and the skeleton 3 so that the hanging bolt 4 passes through the notch portion 16 formed in the base member 7 and the anchor bolt 14 is inserted into the through hole 13. That is, as shown in FIG. 10, the base member 7 is tilted vertically and moved in the longitudinal direction of the base member 7 to relatively move the hanging bolt 4 along the insertion portion 16a, and then the base member 7 is made horizontal and the hanging bolt 4 is relatively moved along the guide portion 16b.

[0047] 11, the hanging bolt 4 is passed through the pressing notch 23 of the pressing member 8, and the pressing member 8 is inserted between the base member 7 and the double nut 6. Then, the double nut 6 is tightened again to fix the base member 7 and the pressing member 8 to the frame 3.

[0048] After the base member 7 and the pressure member 8 are fixed to the main body 3 as described above, in order to improve the mounting strength of the base member 7, nuts 15 are tightened onto the anchor bolts 14 attached to the main body 3 to fix the base member 7 to the main body 3.

[0049] 3 and 4, the through hole 30 into which the bolt 29 for fixing the connection member 9 is inserted is located on the tip side of the base member 7 relative to the through hole 13 into which the anchor bolt 14 is inserted. That is, the base member 7 supports the connection member 9 (i.e., the brace 2) in a cantilever manner, and the amount of deflection of the base member 7 (mainly the fixed portion 10) increases due to the load acting on the tip side of the base member 7. Therefore, as shown in FIGS. 1 and 2, in order to improve the bending rigidity of the fixed portion 10, that is, to increase the moment of inertia in the plate thickness direction of the fixed portion 10, a washer 35 of a predetermined thickness is sandwiched between the fixed portion 10 and the nut 15.

[0050] That is, the thickness and shape of washer 35 are determined based on the load that is predicted to act from brace 2 to base member 7 via connecting member 9 during an earthquake or the like, the distance between anchor bolt 14 and connecting member 9, and the allowable amount of deflection of fixing part 10. Note that washer 35 is not limited to being formed as a rectangular parallelepiped as shown in Figures 1 and 2, and may be formed, for example, in a disk shape.

[0051] As described above, the tips of the side walls 25, 26 of the connection member 9 are interposed between the side walls 11, 12 of the base member 7. The shapes of the side walls 25, 26 are determined based on the required tensile strength. Furthermore, the connection member 9 is configured to be rotated relative to the base member 7 to align with the tip of the brace 2. Therefore, in a side view of the connection member 9, the trajectory of the tip of the connection member 9 may overlap with the washer 35. In such a case, the outer shape of the washer 35 may be determined so that the connection member 9 can be interposed between the outer edge of the washer 35 and the side walls 11, 12 of the base member 7. In other words, the outer diameter dimension of the washer 35 may be determined so that the gap between the washer 35 and the side walls 11, 12 of the base member 7 is equal to or larger than the plate thickness of the connection member 9.

[0052] By making the gap between washer 35 and side wall portions 11, 12 of base member 7 slightly larger than the plate thickness of connecting member 9, when a load acts in a direction in which side wall portions 11, 12 of base member 7 approach each other and are deformed, they come into contact with washer 35 via connecting member 9. Therefore, in addition to enabling rotation of connecting member 9, it is possible to suppress deformation such as twisting of base member 7 in the event of an earthquake, etc.

[0053] Then, the connecting member 9 is brought into contact so as to surround the upper end of the brace 2, and in this state, the connecting member 9 and the brace 2 are fixed from the side wall portions 25, 26 of the connecting member 9 with drill screws 27. By sandwiching and fixing the brace 2 between the side wall portions 25, 26 of the connecting member 9 in this manner, the center lines of the connecting member 9 and the brace 2 in the longitudinal direction coincide. After the upper end of the brace 2 is fixed to the brace mounting bracket 1 as described above, the tilt angle of the brace 2 is adjusted while the lower end of the brace 2 is fixed to a lower mounting bracket attached to the ceiling (specifically, the joist and joist support).

[0054] As described above, by forming the notch 16 through which the hanging bolt 4 passes in the base member 7, the brace mounting bracket 1 for assembling the brace 2 to the frame 3 can be attached to the frame 3 with the upper end of the brace 2 close to the upper end of the hanging bolt 4, even if the ceiling is already suspended from the frame 3. In addition, since the notch 16 is formed in the fixing portion 10 of the base member 7 that is fixed to the frame 3, there is no need to form the notch 16 in the side wall portions 11 and 12, and the bending strength and buckling strength of the base member 7 can be improved. Therefore, it is possible to suppress the upper end of the brace 2 from shaking during an earthquake, etc., and to suppress the lateral shaking of the suspended ceiling.

[0055] Furthermore, because the connection member 9 is attached to the base member 7 so as to be rotatable, the inclination angle of the brace 2 can be adjusted as appropriate when fixing the lower end of the brace 2 to the ceiling. This improves the degree of freedom in mounting the brace 2, thereby preventing excessive restrictions on the mounting position and mounting angle of the lower end of the brace 2. In other words, the brace 2 can be mounted without being restricted by the structure of the ceiling.

[0056] Furthermore, by forming the L-shaped notch 16 in the base member 7, the base member 7 can be prevented from moving in the longitudinal direction when the base member 7 is attached to the skeleton 3. As a result, even when the assembly work is performed at a high place such as above the ceiling, the base member 7 can be prevented from coming off the hanging bolt 4, and the brace mounting bracket 1 can be easily attached. In other words, the assembly workability can be improved. Furthermore, by forming the L-shaped notch 16, the brace mounting bracket 1 and the hanging bolt 4 can be prevented from moving relative to each other in the longitudinal direction of the base member 7 when an earthquake occurs. In other words, the load in the direction in which the hanging bolt 4 moves in the longitudinal direction of the base member 7 can be received by the inner wall surface of the guide portion 16b. Therefore, the horizontal shaking of the suspended ceiling relative to the skeleton 3 can be suppressed.

[0057] Furthermore, by stacking and assembling a pressure member 8 having a U-shaped pressure notch 23 on a base member 7 having an L-shaped notch 16, the suspension bolt 4 can be prevented from moving in the width direction of the base member 7.

[0058] In addition, since the center line of the brace 2 in the longitudinal direction and the center line of the brace mounting bracket 1 in the longitudinal direction are configured to approximately coincide with each other, it is possible to suppress torsional loads and bending loads from acting on the brace 2 in the event of an earthquake, thereby improving the durability and earthquake resistance of the brace 2.

[0059] Furthermore, the base member 7, the pressing member 8, and the connecting member 9 that constitute the brace mounting bracket 1 can be formed simply by bending and drilling, so the manufacturing costs of the brace mounting bracket 1 can be reduced.

[0060] Even if the plate thickness of the base member 7 is limited because the base member 7 is formed by bending, the second moment of area of ​​the base member 7 including the washer 35 can be increased by fixing the base member 7 to the body 3 via the washer 35, and the amount of deflection of the base member 7 during an earthquake or the like can be reduced, in other words, the plastic deformation of the base member 7 can be suppressed. In other words, the support strength of the brace 2 can be improved.

[0061] An example in which the configuration of the base member 7 shown in Figs. 3 and 4 is modified is shown in Figs. 12 and 13. The same components as those shown in Figs. 3 and 4 are denoted by the same reference numerals, and the description thereof is omitted. In the example shown here, a slit 33 of a predetermined length is formed on the fixed portion 10 side of the side walls 11 and 12. This slit 33 is configured to engage with a locking portion 34 of the pressing member 8, which will be described later. That is, the length of the slit 33 is formed to be longer than the length of the locking portion 34, and the width of the slit 33 is formed to be slightly wider than the plate thickness of the locking portion 34. In addition, the locking portion 34 of the pressing member 8 is formed at the same height as the flat plate portion 19 in the vertical direction. Therefore, the slit 33 is formed at a position along the back surface of the fixed portion 10 in the vertical direction.

[0062] 14 and 15 show a pressing member 8 attached to a base member 7 in which a slit 33 is formed. The same components as those shown in Figs. 5 and 6 are given the same reference numerals and their description will be omitted. The pressing member 8 shown here is formed with a locking portion 34 having approximately the same length as the pressing side walls 21, 22. This locking portion 34 is a portion of the flat plate portion 19 that is formed with a wide width on the folded end portion 20 side, and the width is formed to be approximately the same as the distance between the outer surfaces of the side walls 11, 12 of the base member 7.

[0063] The base member 7 and the pressing member 8 configured as described above are assembled by moving the pressing member 8 along the longitudinal direction of the base member 7, so that the locking portion 34 of the pressing member 8 engages with the slit 33 of the base member 7 in the vertical direction as shown in FIG. 16. Therefore, when engaging the pressing member 8 with the base member 7, the locking portion 34 is engaged with the slit 33, and the pressing member 8 can be prevented from falling off without being held down by a person in that state. Therefore, a person can tighten the nut 15 or the double nut 6 with both hands, improving the workability of the brace mounting bracket 1. In addition, the base member 7 and the pressing member 8 can be fixed in the vertical direction in addition to the part fixed by the double nut 6, improving the strength of the brace mounting bracket 1.

[0064] In the embodiment of the present invention, the base member is not limited to one in which one side in the longitudinal direction is fixed to the hanging bolt and the other side is fixed to the brace via the connection member, but the brace may be fixed to the side fixed to the hanging bolt via the connection member. In such a case, a U-shaped cutout portion may be formed in the washer as in the pressing member, the washer may be placed on top of the flat plate portion of the pressing member, and the washer, the pressing member, and the base member may be fixed to the frame together with a double nut. That is, the washer may be provided on the side close to the position where the connection member is connected. The washer may also be formed in a rectangular shape having a predetermined length from the position where the hanging bolt is provided to the position where the anchor bolt is provided, and in that case, the washer may be fixed to the base member by two nuts, a double nut that fixes the hanging bolt and a nut that fixes the base member to the anchor bolt. [Explanation of symbols]

[0065] 1 Brace mounting bracket 2 Braces 3 skeleton 4 Hanging bolt 7 Base material 8 Pressing member 9 Connection parts 10 Fixed part 11, 12, 25, 26 Side wall 13, 17, 18, 28, 30 Through holes 16 Cutout 16a Insertion part 16b Guide part 23 Presser foot notch 21, 22 Presser side wall 32 Cylindrical member 33 Slit 34 Locking part 35 Washer

Claims

1. A brace mounting bracket that attaches one end of a brace, which is a reinforcing member for a suspended ceiling suspended by a support member hanging from a skeleton, to the skeleton, a base member having a fixed portion having a predetermined length fixed to the body and side walls extending downward from both sides of the fixed portion in a width direction; a connecting member pivotally connected to the base member and fixed to one end of the brace; The fixing portion has a notch portion that opens at one end in the longitudinal direction and into which the support member is inserted. A brace mounting bracket characterized by:

2. 2. The brace mounting hardware according to claim 1, The notch portion is composed of an insertion portion having a predetermined length from one end of the fixed portion, and a guide portion formed in the width direction of the fixed portion from the end of the insertion portion. A brace mounting bracket characterized by:

3. The brace mounting hardware according to claim 1 or 2, The support member is provided with a pressing member that sandwiches the support member located at the end of the notch between the notch and the pressing member. A brace mounting bracket characterized by:

4. The brace mounting hardware according to claim 3, The pressing member has a pressing notch portion that opens at one end, The pressing member is configured to sandwich the support member between the notch portion and the pressing notch portion. A brace mounting bracket characterized by:

5. The brace mounting hardware according to claim 3, The pressing member further includes a pressing side wall portion that sandwiches the side wall portion of the base member. A brace mounting bracket characterized by:

6. The brace mounting hardware according to claim 3, A slit having a predetermined length is formed in the side wall portion of the base member in the longitudinal direction, The pressing member has a locking portion that is inserted into the slit and engages with the slit in the vertical direction. A brace mounting bracket characterized by:

7. 2. The brace mounting hardware according to claim 1, one end of the connecting member is interposed between the opposing side wall portions, The side wall portion has a through hole, a bolt inserted from one side of the side wall portion and protruding from the other side of the side wall portion; a nut that is screwed onto the tip of the bolt protruding from the other side of the side wall portion. A brace mounting bracket characterized by:

8. The brace mounting hardware according to claim 7, A cylindrical member through which the bolt passes is provided between the side wall portions facing each other. A brace mounting bracket characterized by:

9. 2. The brace mounting hardware according to claim 1, The center line of the brace in the longitudinal direction coincides with the center lines of the base member and the connecting member in the longitudinal direction. A brace mounting bracket characterized by:

10. 2. The brace mounting hardware according to claim 1, The base member is fixed by clamping the fixing portion between the base member and the body by a nut screwed onto the support member or a nut screwed onto a bolt protruding from the body, A washer for improving the bending rigidity of the fixing portion is interposed between the nut and the fixing portion. A brace mounting bracket characterized by:

11. 11. The brace mounting bracket according to claim 10, the connecting member is rotatably connected to one side of the side wall portion of the base member in a longitudinal direction, The base member is fixed by clamping one side of the fixing portion between the base member and the body by a nut screwed onto the support member, and by clamping the other side of the fixing portion between the base member and the body by a nut screwed onto a bolt protruding from the body, The washer is provided at a location closer to a position where the connecting member is fixed out of a location where the supporting member is clamped between the supporting member and the body by a nut screwed onto the supporting member and a location where the supporting member is clamped between the supporting member and the body by a nut screwed onto a bolt protruding from the body. A brace mounting bracket characterized by:

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