JP2013199800A - Brace connector and brace connection structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a brace connector and a brace connection structure to be used for a ceiling or the like, which are excellent in workability, earthquake resistance and versatility.SOLUTION: A brace connector 2 suspended from a ceiling skeleton 2 and attached to a suspension bolt 4 formed with a screw part 5 includes an engagement member 8 and a connection member 10. When a connection part 32 of the connection member 10 is facing downward along the suspension bolt 4, a pressurization part 30 does not pressurize the suspension bolt 4 against an engagement body 12, and the engagement member 8 becomes movable up and down, together with the connection member 10, with respect to the suspension bolt 4. When the connection part 32 of the connection member 10 is rotated in a direction away from the suspension bolt 4, the pressurization part 30 of the connection member 10 pressurizes the suspension bolt 4 against the engagement body 12, an engagement tooth part 16 of the engagement body 12 is engaged with the screw part 5 of the suspension bolt 4, and the engagement member 8 is fixed, together with the connection member 10, to the suspension bolt 4 .

Description

  The present invention relates to a brace coupler used for a ceiling or the like and a brace coupling structure.

  Conventionally, in a ceiling structure of a building, suspension bolts are suspended from a ceiling slab at a predetermined interval, and a brace for reinforcement is attached to a ceiling frame configured in combination with a horizontal member to improve seismic strength. The brace is disposed obliquely from the upper part of the suspension bolt between the lower parts of adjacent suspension bolts or between the ceiling frames to reinforce the ceiling frame.

  For example, in Patent Document 1, as shown in FIG. 13, a brace fitting 71 that fixes a brace 70 to a suspension bolt 72, a board 74 into which a mounting bolt 73 at the tip of the brace 70 is screwed, and an upper part of the board 74 are disclosed. A first locking piece 76 that extends and can be locked to the suspension bolt 72, a second locking piece 78 that extends from the lower portion of the substrate 74 and can be locked to the suspension bolt 72, and the suspension bolt A third locking piece 80 that can be locked to 72, and includes four points: a mounting bolt 73, a first locking piece 76, a second locking piece 78, and a third locking piece 80. What is locked to the suspension bolt 72 is disclosed.

  Patent Document 2 discloses a fixture that has a fixed member and a movable member, attaches a brace to the movable member, and provides first to fourth claw portions on the fixed member to fix the fixed member to the suspension bolt. Has been.

JP 2009-35960 A JP 2008-111292 A

  Now, in the brace fitting 71 described in Patent Document 1, the angle of the brace 70 with respect to the suspension bolt 72 is held at a constant angle by the first to third locking bodies and the mounting bolt, and the brace fixed to the mounting bolt. To change the angle, there is a problem that it is necessary to prepare a brace fitting of another specification. Further, since the brace fitting 71 is configured to be locked to the suspension bolt 72 by the first to third locking pieces and each point of the mounting bolt, the position of the mounting bolt 73 and the like is shifted and locked due to strong shaking or the like. There is a concern that it will cause inconvenience. The same thing is also concerned about the fixture described in Patent Document 2 because it has a plurality of claws.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a brace coupler for a ceiling and a brace coupling structure excellent in workability, earthquake resistance, and versatility.

  In order to solve the above technical problems, the brace coupling device according to the present invention is brazed from the ceiling housing 3 and attached to the suspension bolt 4 in which the screw portion 5 is formed, as shown in FIG. In the tool 2, a locking body 12 having a concave and convex locking tooth portion 16 that can be locked with the threaded portion 5 of the suspension bolt 4 on the inner surface portion, and left and right portions of the locking body 12 are formed. The locking member 8 having a U-shaped cross section including the side plate portions 14 and 14 and the both side plate portions 14 of the locking member 8 are fitted between the both side plate portions, and can be rotated by a rotation shaft 11 inserted through the both side plate portions. A pressing portion 30 that presses the suspension bolt 4 that is disposed along the locking body 12 of the locking member 8 against the locking body 12 is provided on one side, and a brace is provided on the other side. And a connecting member 10 provided with a connecting portion 32 to which 6 is connected, When the connecting portion 32 of the linking member 10 faces downward along the suspension bolt 4, the pressing portion 30 does not press the suspension bolt 4 against the locking body 12, and the locking member 8 moves together with the connecting member 10. When the connecting portion 32 of the connecting member 10 is rotated in a direction away from the hanging bolt 4, the pressing portion 30 of the connecting member 10 causes the hanging bolt 4 to move. Pressing against the locking body 12, the locking tooth portion 16 of the locking body 12 is engaged and locked with the screw portion 5 of the suspension bolt 4, and the locking member 8 is engaged with the suspension bolt 4 together with the connecting member 10. It is a fixed configuration.

In the brace connector according to the present invention, the relationship between the pitch Q of the locking tooth portion 16 of the locking member 8 and the pitch P of the screw portion 5 of the suspension bolt 4 is Q = P, Q = 2P, or In this configuration, Q = 3P.
The brace connector according to the present invention has a configuration in which the crest portion 15 of the locking tooth portion 16 is formed in an acute cross section.

  In the brace connector according to the present invention, the pressing portion 30 of the connecting member 10 is formed in an arc shape that forms a part of a circle around the rotating shaft 1 and the connecting member 10 is rotated. Even so, the position where the pressing portion 30 is in contact with the suspension bolt 4 is always constant, and the pressing portion 30 presses the suspension bolt 4 against the locking body 12 to lock the locking member 8. The tooth portion 16 is engaged with and engaged with the screw portion 5 of the suspension bolt 4, and the engagement member 8 is fixed to the suspension bolt 4 together with the connecting member 10.

  The brace connector according to the present invention is configured such that the rotation of the connecting member 10 causes the locking portion to be locked at an inclination angle in a range of 30 degrees to 60 degrees with respect to the suspension bolt 4 by the connecting portion 32 of the connecting member 10. In this configuration, the locking tooth portion 16 of the member 8 is engaged with and locked with the screw portion 5 of the suspension bolt 4.

  In the brace connector according to the present invention, the engaging member 38 is provided with an engaging portion 38. When the connecting portion 32 of the connecting member 10 faces downward along the suspension bolt 4, the engaging portion 38 is connected to the connecting member 10. When the connecting member 10 is moved together with the locking member 8 and above the suspension bolt 4, the locking member 8 rotates about the rotation shaft 11. It is the structure which prevented it from doing.

  The brace connection structure according to the present invention is such that the brace 6 is attached to any one of the brace connectors described above, and the brace connector 2 disposed on the suspension bolt 4 is moved upward. The flat upper side portion 19 of the portion 14 is brought into contact with the ceiling casing 3 and the brace connector 2 is attached to the suspension bolt 4 in this state.

  According to the brace connector according to the present invention, it has a locking member provided with a locking body and a connecting member provided with a pressing portion. When the connecting portion of the connecting member is rotated, the pressing of the connecting member is performed. Since the portion presses the suspension bolt against the engagement body, the engagement tooth portion of the engagement body is engaged with and engaged with the thread portion of the suspension bolt, and the engagement member is fixed to the suspension bolt together with the connecting member. The brace connector can be freely moved to the desired position of the suspension bolt, and the brace connector can be locked and fixed to the suspension bolt only by rotating the connection member to which the brace is coupled to the desired angle. Therefore, the work can be easily performed and the workability is excellent, and the brace coupler is not easily detached from the suspension bolt due to the engagement between the locking tooth portion and the screw portion, so that it has an effect of being excellent in earthquake resistance.

According to the brace connector according to the present invention, the relationship between the pitch Q of the locking tooth portion of the locking member and the pitch P of the thread portion of the suspension bolt is Q = P, Q = 2P, or Q = 3P. Therefore, there is an effect that the locking tooth portion and the screw portion are deeply engaged and strongly locked and fixed.
In addition, according to the brace connector according to the present invention, since the peak portion of the locking tooth portion is formed with an acute cross section, there is an effect that the locking tooth portion and the screw portion are accurately engaged and locked. .

  According to the brace connector according to the present invention, even when the pressing portion of the connecting member is formed in an arc shape that forms a part of a circle around the rotation axis, and the connecting member is rotated, Since the position where the pressing part is in contact with the suspension bolt is always constant, and the locking tooth portion of the locking member is engaged and locked with the threaded portion of the suspension bolt, in addition to the effects such as the above work, brace connection The inclination angle of the brace connected to the fixture can be set freely and is highly versatile. Also, even if the inclination angle of the brace changes due to earthquake vibration, etc. There is an effect that it is excellent in properties.

  According to the brace connector according to the present invention, the engaging member is provided on the connecting member to prevent the locking member from rotating. Therefore, when the brace connector is pushed up against the suspension bolt, the locking member This eliminates the inconvenience that a part of the hook is caught by the threaded portion of the suspension member, and there is an effect that the construction can be performed satisfactorily.

  According to the brace connection structure according to the present invention, the side plate portion of the brace connector according to any one of the above is brought into contact with the ceiling casing, and the brace connector is attached to the suspension bolt. In addition, since the locking member of the brace connector is held and fixed to the ceiling casing, the locking member does not rotate or rattle, and there is an effect that the fixing of the brace connector is stabilized. .

It is a figure which shows the brace connector and brace connection structure which concern on embodiment. It is a figure which shows the latching member of the brace connector which concerns on embodiment, (a) is a front view, (b) is a top view, (c) is sectional drawing. It is a figure which shows the latching member of the brace connector which concerns on embodiment. It is a figure which shows the latching member of the brace connector which concerns on another form. It is a figure which shows the plane of the brace connector which concerns on embodiment. It is a figure which concerns on embodiment and shows the cross section of the state which fitted the suspension volt | bolt in the restraint space part of a brace connector. It is sectional drawing which shows the state which rotated the connection member of the brace connector. It is sectional drawing of the form which made the pitch of the suspension bolt and the pitch of the latching tooth | gear part of a brace connector the same. It is a figure which shows the connection structure of the brace which concerns on embodiment and used the brace connector. It is a figure which shows the state which rotated the connection member of the brace connection tool to the several angle. It is a figure which shows the state which is slidingly moving the brace coupling tool fitted to the suspension bolt toward the upper part of a suspension bolt. It is a figure which shows the ceiling foundation structure which concerns on embodiment and used the brace coupler and the connection structure of a brace. It is a figure which shows the brace metal fitting and ceiling structure which concern on a prior art example.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 shows a brace coupler 2 and a brace coupling structure according to an embodiment. The brace connector 2 is attached to a suspension bolt 4 suspended from the ceiling housing 3 and connects a brace 6 that prevents shaking of the ceiling base to the suspension bolt 4. The suspension bolt 4 is vertically arranged with its upper end fixed to the ceiling casing 3 and is supported by attaching a ceiling material such as a ceiling board to the lower end.

The brace connector 2 is made of steel and has a locking member 8 having a U-shaped cross section and a connecting member 10 that is rotatably supported by the locking member 8. The end of the brace 6 is fixed to the connecting member 10, and the direction of the brace 6 is made to coincide with the direction of the connecting member 10.
The suspension bolt 4 is made of a steel material, and a screw portion 5 in which a thread and a screw groove are engraved spirally is formed on the entire round bar (or upper and lower portions).

As shown in FIG. 2, the locking member 8 is composed of a long locking body 12 having a rectangular cross section and both side plates 14 and 14 formed on the left and right sides of the locking body 12. Is U-shaped.
A concave and convex locking tooth portion 16 is formed inside the locking body 12, and the cross section of the locking tooth portion 16 has a sawtooth shape in which a crest portion 15 and a groove portion 17 are formed at regular intervals. The peak portion 15 of the locking tooth portion 16 is formed in an acute angle shape.

Each of the side plate portions 14 has a shape in which one corner portion of a rectangular steel plate is cut obliquely, and is a pentagon shape including a base side portion 18, an upper side portion 19, a side side portion 20, an oblique side portion 21, and a bottom side portion 22. . Each side plate portion 14 is formed with a large-diameter insertion hole 24 and a small-diameter insertion hole 25 at positions near the central side portion 20.
In the locking body 12, the base side portions 18 of the side plate portions 14 are fixed to the left and right side portions, respectively. Each side plate portion 14 is welded to the locking body 12. In addition, each side plate part 14 may be joined to the locking body 12 using screws or the like. The distance between the side plate portions 14 is formed to be slightly larger than the diameter (outer diameter) of the suspension bolt 4.

As shown in FIG. 3, the connecting member 10 is made of a long steel plate, and an arc-shaped pressing portion 30 is provided at one end in the longitudinal direction of the flat substrate portion 28, and a connecting portion is provided at the other end. 32 are formed. The connecting member 10 generally has a shape in which a pressing portion 30 is formed on one short side of a rectangle.
Further, the connecting member 10 is formed with an upright portion 34 that is bent in the vicinity of one long side of the substrate portion 28 and formed with an upright portion 36 that is bent in the vicinity of the other long side. Yes. Further, the position of the upright portion 34 near the pressing portion 30 is formed to be lower by a stepped engagement portion 38. The connecting member 10 ensures a width in the front and back direction of the plate material (close to the interval between the both side plate portions 14 of the locking member 8) by the upright portion 34 and the upright portion 36. Two holes 43 are formed in the connecting portion 32 in the vicinity of the center of the substrate portion 28 in the longitudinal direction, and two holes 44 are formed in the vicinity of the end portion in the short direction.

Further, a shaft hole 40 is formed in the central portion of the substrate portion 28 at a position near the pressing portion 30. A ring-shaped ring member 41 is welded to the back side of the shaft hole 40, and the hole portions of the shaft hole 40 and the ring member 41 communicate with each other.
The pressing portion 30 is formed in a circular arc shape that forms a part of a circle (radius R) centered on the central portion of the shaft hole 40.

FIG. 4 shows a connecting member 46 according to another embodiment. The connecting member 46 is made of a long steel plate material, and an arc-shaped pressing portion 30 is formed at one end of the flat substrate portion 47 in the longitudinal direction, and a connecting portion 48 is formed at the other end. Yes. This connection part 48 is a form in which connection pieces 49, 49 are formed on both sides, and each connection piece 49 is provided with two holes 45 respectively. The brace is fixed to the connecting portion 48 using the hole 45.
The pressing portion 30 and the like of the connecting member 46 are the same in shape and pressing form as the pressing portion 30 of the connecting member 10, and are denoted by the same reference numerals and description thereof is omitted here. Here, the form using the said connection member 10 is demonstrated below.

As shown in FIG. 5, the brace connector 2 is configured such that the connecting member 10 is fitted between the both side plate portions 14 of the locking member 8, and the insertion hole 24 of the side plate portion 14 and the shaft hole 40 of the connecting member 10 are aligned. The bolt 50 is inserted through the washer 51 and the nut 52 is screwed and assembled.
The bolt 50 includes a head portion 55, a large-diameter shaft portion 56, a small-diameter shaft portion 57, and a screw portion 58. A washer 54 is fitted to the large-diameter shaft portion 56 for use. The large-diameter shaft portion 56 is inserted into the large-diameter insertion hole 24 of the side plate portion 14 of the locking member 8, and the small-diameter shaft portion 57 is inserted into the small-diameter insertion hole 25. The large-diameter shaft portion 56 adjusts the distance between the side plate portion 14 of the locking member 8 and the connecting member 10 (the function of a washer).

Then, the connecting member 10 is pivotally supported by the bolt 50 as the rotating shaft 11 with respect to the locking member 8, and the connecting member 10 is rotatably supported. In addition, it can replace with the said volt | bolt 50 and a pin etc. can also be used.
The brace connector 2 is formed in a U-shaped three-sided manner by the locking body 12 and both side plate portions 14 of the locking member 8, and the suspension bolt 4 is placed in the restraint space 53 surrounded by the connecting member 10 on the other side. The suspension bolt 4 is pressed against the locking teeth 16 of the locking member 8 by the pressing portion 30 of the connecting member 10 and fixed.

Here, a locking structure between the suspension bolt 4 and the brace connector 2 will be described.
FIG. 6 shows a cross section in a state where the suspension bolt 4 is fitted in the restraint space 53 of the brace connector 2. The pressing portion 30 of the connecting member 10 has an arc shape that forms a part of a circle (radius R) around the rotation shaft 11, and the central angle of the arc here is approximately 120 degrees. In this case, a part of the side portion 42 (near the upper portion of the side portion 42) of the connecting member 10 on the side of the suspension bolt 4 (left side in the drawing) has a distance from the rotation shaft 11 from the radius (R) of the pressing portion 30. small.

Therefore, when the connecting member 10 is rotated (counterclockwise in this case), the part where the connecting member 10 first contacts the suspension bolt 4 is the boundary point (S) between the side portion 42 and the pressing portion 30. .
Here, the distance (A) from the top of the peak portion 15 of the locking tooth portion 16 of the locking member 8 to the boundary point (S) of the connecting member 10 and the outer diameter (B) of the suspension bolt 4 (screw thread) As for the relationship with the diameter, the distance (A) is smaller than the outer diameter (B) of the suspension bolt 4 (A <B) when the boundary point (S) is parallel to the rotation shaft 11. The position of the rotation shaft 11 of the connecting member 10 is determined.
However, in a state where the boundary point (S) is located above the rotation shaft 11, the connecting member 10 is set so that the distance (A) is larger than the outer diameter (B) of the suspension bolt 4 (A> B). The position of the rotation shaft 11 is determined.

  In this case, when the connecting portion 32 of the connecting member 10 faces downward (or is slightly rotated) along the suspension bolt 4, the pressing portion 30 (boundary point (S point)) of the connecting member 10 extends from the suspension bolt 4. It is separated, and the locking tooth portion 16 of the locking member 8 and the screw portion 5 of the suspension bolt 4 do not mesh with each other. The brace connector 2 can move up and down along the suspension bolt 4.

Next, as shown in FIG. 7, when the connecting member 10 is rotated (counterclockwise), the boundary point (S) of the pressing portion 30 moves to the suspension bolt 4 side. When the boundary point (S) is positioned in a state horizontal to the rotation shaft 11, the pressing portion 30 pushes the suspension bolt 4 (from the relationship of A <B), and this is the locking tooth portion 16 of the locking member 8. The locking tooth portion 16 of the locking member 8 and the screw portion 5 of the suspension bolt 4 mesh with each other.
In this state, the brace connector 2 is locked and fixed to the suspension bolt 4. At this time, the inclination angle (θ) formed by the connecting member 10 with respect to the suspension bolt 4 is approximately 40 degrees.

Further, even if the connecting member 10 is rotated and the inclination angle of the connecting member 10 is changed, the pressing portion 30 has an arc shape having a radius (R) with the rotating shaft 11 as the center. Absent. For this reason, the position where the pressing portion 30 presses the suspension bolt 4 is constant, the engagement tooth portion 16 and the threaded portion 5 of the suspension bolt 4 are kept in mesh with each other, and the brace connector 2 is attached to the suspension bolt 4. It remains locked and fixed.
Here, if the inclination angle of the connecting member 10 (from the direction of the suspension bolt 4) is 40 degrees or more and the inclination angle is within the range of the central angle (approximately 120 degrees) of the pressing portion 30, the brace connector 2 is The suspension bolt 4 is fixedly secured.

  By defining the central angle of the pressing part 30, the range of the inclination angle of the connecting member 10 can be set freely. The central angle of the pressing part 30 is practically in the range of 10 degrees to 150 degrees. The inclination angle of the connecting member 10 corresponds to the inclination angle of the brace 6 as it is, but usually this inclination angle is often used in the range of 30 to 60 degrees.

  As another form, even when the shape of the pressing portion of the connecting member 10 is not the arc shape, the pressing portion pushes the suspension bolt 4 by rotating the connecting member (counterclockwise) ( This is pressed against the locking tooth portion 16 of the locking member 8 (from the relationship of A <B above), and the state where the locking tooth portion 16 of the locking member 8 and the screw portion 5 of the suspension bolt 4 are engaged is maintained. be able to. Also in this case, the brace connector 2 is satisfactorily fixed to the suspension bolt 4.

Since both the locking tooth portion 16 of the brace connector 2 and the threaded portion 5 of the suspension bolt 4 are such that the convex portion and the concave portion are continuous, they are engaged and locked and fixed without any special relationship. .
Here, as shown in FIG. 6 above, the engaging teeth 16 of the brace connector 2 with respect to the pitch (P) (interval between threads) of the threaded portion 5 of the suspension bolt 4 in order to deeply engage the both. The pitch (Q) (interval between tooth ridges 15) is doubled (Q = 2P). Thereby, the peak portion 15 of the locking tooth portion 16 of the brace connector and the screw groove of the screw portion 5 of the suspension bolt 4 are deeply engaged with each other and firmly fixed.

  Generally, when the relationship between the pitch (Q) of the locking tooth portion 16 and the pitch (P) of the screw portion 5 is Q = nP or Q = P / n (n is a natural number), the meshing of both is strong. Become. In particular, the relationship between the pitch Q of the locking tooth portion 16 and the pitch P of the screw portion 5 of the suspension bolt 4 is determined from the pitch of a general suspension bolt when Q = P, Q = 2P, or Q = 3P. It is practical. In addition, the pitch Q of the locking tooth portion 16 may be non-uniform, but it may be any shape as long as both engage with each other and the brace connector 2 can be fixed to the suspension bolt 4.

  The suspension bolt 7 for attaching the brace connector 2 shown in FIG. 8 has the same pitch (Q) of the locking teeth 16 of the brace connector 2 as the pitch (P) of the threaded portion 9 of the suspension bolt 7. (Q = P). Also in this case, the peak portion 15 of the locking tooth portion 16 of the brace connector 2 is deeply engaged with the thread groove of the screw portion 9 of the suspension bolt 7.

9 and 10 show the connection structure of the brace 6 using the brace connector 2 described above. When the brace connector 2 is arranged, the brace 6 is attached to the connecting member 10 of the brace connector 2 in advance. At this time, the upper ends of the braces 6 are fixed to the connecting portion 32 by using the holes 43 and 44 provided in the connecting portion 32 of the connecting member 10 and using a fastening tool such as a bolt.
Then, the brace connector 2 is fitted from the lower end of the suspension bolt 4, and the suspension bolt 4 is inserted into the restraining space 53 of the brace connector 2. In this state, the operator pushes up the lower part of the brace 6 attached to the brace connector 2 and moves the brace connector 2 to the upper part of the suspension bolt 4 with the connecting member 10 (brace 6) along the suspension bolt 4. .
In this state, the locking tooth portion 16 of the brace connector 2 is not locked with the screw portion 5 of the suspension bolt 4, and the brace connector 2 can move up and down while being inserted into the suspension bolt 4.

Next, as shown in FIG. 10, the brace connector 2 is stopped at a predetermined position (here, the upper end portion) of the suspension bolt 4, and the connecting member 10 is separated from the suspension bolt 4 in the direction in which the connection portion 32 is separated (counterclockwise). Turn to.
When the inclination angle (θ) with respect to the suspension bolt 4 reaches around 40 degrees, the boundary point (S) of the pressing portion 30 of the connecting member 10 presses the suspension bolt 4 and moves it to the locking member 8 side. At this time, the pressing portion 30 of the connecting member 10 presses the suspension bolt 4 against the engagement body 12 of the engagement member 8, whereby the engagement member 8 is engaged with the suspension bolt 4 and the engagement member 8 is engaged. The tooth portion 16 meshes with the screw portion 5 of the suspension bolt 4, and the brace connector 2 is locked and fixed to the suspension bolt 4 at this position.

Further, as shown in FIG. 10, even when the connecting member 10 of the brace connector 2 is rotated together with the brace 6 and the inclination angle (θ) becomes 40 degrees or more, it is within the arc range of the pressing portion 30. Then, the pressing position with respect to the suspension bolt 4 is not changed, and the engagement state between the suspension bolt 4 and the engagement member 8 is maintained as it is. For this reason, the brace 6 connected to the connecting member 10 can be freely angle-adjusted with respect to the suspension bolt 4 within the arc range (center angle) of the pressing portion 30.
Then, when the brace 6 is rotated to a desired inclination angle (for example, 45 to 60 degrees), the brace connector 2 is locked and fixed to the suspension bolt 4 in this state, and the lower end portion of the inclined brace 6 is set at a predetermined position. Secure to.
Further, even when the inclination angle of the brace 6 is changed due to vibration or the like, the brace connector 2 is maintained in the locked state with the suspension bolt 4, so that the brace connector 2 cannot be detached from the suspension bolt 4.

In this case, in particular, the brace connector 2 is pushed up to the upper end of the suspension bolt 4 and is fixed in a state where the upper side 19 of the side plate portion 14 of the brace connector 2 is in contact with the surface of the ceiling casing 3. Yes. Thereby, since the locking member 8 of the brace connector 2 is held and fixed to the ceiling housing 3, the locking member 8 does not rotate (center of the rotation axis) or rattle.
Moreover, when attaching the brace connector 2 to the high position of the suspension bolt 4, the lower part of the brace 6 previously attached to the brace connector 2 can be pushed up, and the brace connector 2 can be moved to the high position of the suspension bolt 4. . Then, if the brace 6 is inclined at a desired position of the brace connector 2, the brace connector 2 is fixed to the suspension bolt 4. For this reason, the attachment work of the brace connector 2 and the attachment work of the lower end of the brace 6 can be performed at a position near the lower part of the brace 6.

FIG. 11 shows a state in which the brace connector 2 fitted to the suspension bolt 4 is slid toward the upper portion of the suspension bolt 4.
In this case, the locking member 8 of the brace connector 2 is in a state where the connecting member 10 pushes up the portion of the rotating shaft 11, so that the locking member 8 is caused by friction with the suspension member 4. Try to rotate counterclockwise around the center. In this way, when the locking member 8 is rotated and tilted, the vicinity of the lower portion of the locking tooth portion 16 of the locking member 8 is caught by the screw portion 5 of the suspension member 4, resulting in inconvenience.

For this reason, the brace connector 2 is configured such that the step-shaped engaging portion 38 provided in the connecting member 10 is brought into contact with the bottom side portion 22 of the side plate portion 14 of the locking member 8 from below. Accordingly, when the brace connector 2 is pushed up with respect to the suspension bolt 4, the locking member 8 that rotates about the rotation shaft 11 rotates (the bottom portion 22 of the side plate portion 14 attempts to move downward). The above-mentioned inconvenience does not occur.
Instead of the step-like engaging portion 38 provided on the connecting member 10, a form in which a protruding engaging portion is provided may be adopted, or the engaging portion is provided at another position of the connecting member 10. The engaging member 8 may be engaged with the side plate portion 14 to prevent the locking member 8 from rotating. In short, it is sufficient that the locking member 8 is prevented from rotating when the brace connector 2 is pushed up.

FIG. 12 shows a ceiling base structure using the brace coupler 2 and the brace coupling structure. The suspension bolt 4 is attached in a suspended state from the ceiling housing 3, and the upper portion of the suspension bolt 4 is screwed to an insert 60 (internal female screw) embedded in the ceiling housing 3. Moreover, the lower part of some suspension bolts 4 supports the hanger 62 etc. which hold | maintain a field edge holder etc. The hanger 62 is screwed to the threaded portion 5 of the suspension bolt 4 via a nut.
And the brace connector 2 is attached to the upper part of the suspension bolt 4, the brace 6 fixed to the brace connector 2 is arranged in an inclined shape, and the lower end of the brace 6 is attached to the lower part of the other suspension bolt 4. It is being fixed to the fixing tool 64 with the volt | bolt. The brace 6 reinforces the ceiling base 66 composed of a field edge receiver, a field edge, etc., and prevents vibrations and the like to improve earthquake resistance.

  Therefore, according to the above-described embodiment, the brace connector is moved to the required height position of the suspension bolt, and the brace fixed to the brace connector is simply rotated to the required angle. Since it is locked and fixed to the suspension bolt, the work is easy and excellent in workability, and the brace can be freely set to an angle within the desired range, so it is highly versatile, and it can be used for earthquake vibrations, etc. Even when the brace is shaken and the inclination angle is changed, the brace connector is not detached from the suspension bolt, so that there is an effect of excellent earthquake resistance.

DESCRIPTION OF SYMBOLS 2 Brace coupling tool 3 Ceiling case 4 Suspension bolt 5 Screw part 6 Brace 8 Locking member 10 Connecting member 11 Rotating shaft 12 Locking body 14 Side plate part 16 Locking tooth part 30 Press part 32 Connecting part

Claims (7)

In the brace connector that is hung from the ceiling frame and attached to the hanging bolt in which the thread portion is formed,
A U-shaped cross section consisting of a locking body in which an uneven locking tooth portion that can be locked to the threaded portion of the suspension bolt is formed on the inner surface portion, and side plate portions formed on the left and right sides of the locking body. A locking member of
It is fitted between the both side plate portions of the locking member, and is pivotally supported by a rotation shaft inserted through the both side plate portions, and is arranged along the locking body of the locking member on one side. A pressing portion for pressing the suspension bolt against the locking body is provided, and the other side has a connecting member provided with a connecting portion to which the brace is connected,
When the connecting portion of the connecting member faces downward along the suspension bolt, the pressing portion does not press the suspension bolt against the locking body, and the locking member moves up and down with respect to the suspension bolt together with the connecting member. Can be moved,
When the connecting portion of the connecting member is rotated in a direction away from the suspension bolt, the pressing portion of the connecting member presses the suspension bolt against the locking body, and the locking tooth portion of the locking body is A brace connector, which is engaged with and locked with a screw portion of a bolt, and the locking member is fixed to the suspension bolt together with the connecting member.   3. The relationship between the pitch Q of the locking tooth portion of the locking member and the pitch P of the thread portion of the suspension bolt is set to Q = P, Q = 2P, or Q = 3P. The brace coupler as described.   The brace connector according to claim 1 or 2, wherein the peak portion of the locking tooth portion is formed in an acute cross section.   Even if the pressing portion of the connecting member is formed in an arc shape that forms a part of a circle around the rotation axis, and the connecting member is rotated, the pressing portion is not attached to the suspension bolt. The contact position is always constant, the pressing portion presses the suspension bolt against the locking body, the locking tooth portion of the locking member meshes with the screw portion of the suspension bolt, and the locking member The brace connector according to any one of claims 1 to 3, wherein the bracket is fixed to the suspension bolt together with the connecting member.   When the connecting member is rotated, an angle formed by the connecting portion of the connecting member with respect to the suspension bolt is an inclination angle in a range of 30 degrees to 60 degrees. The brace connector according to claim 4, wherein the brace connector is engaged with and locked.   An engaging portion is provided on the connecting member. When the connecting portion of the connecting member faces downward along the suspension bolt, the engaging portion engages with a side plate portion of the connecting member, and the connecting member is locked. 6. The locking member according to any one of claims 1 to 5, wherein the locking member is prevented from rotating about the rotation shaft when moved together with the member above the suspension bolt. Brace couplings.   A brace is attached to the brace connector according to any one of claims 1 to 6, the brace connector disposed on the suspension bolt is moved upward, and a flat upper side portion of a side plate portion of the brace connector is attached to a ceiling casing. The brace coupling structure, wherein the brace coupling tool is attached to the suspension bolt in this state.

Images