JP6313737B2 - Brace coupling bracket - Google Patents

Description

  The present invention relates to a brace coupling fitting for coupling an end portion of a brace provided as an oblique reinforcing member to a suspension bolt.

  Conventionally, suspension bolts hanging from the ceiling slab support suspensions such as air conditioners, various pipes, and ceiling base materials. Has been done. As such a brace coupling metal fitting, there exists a thing like patent document 1, for example. In the brace connecting bracket of Patent Document 1, a pair of angle members are attached to a fixing bracket that is fixed to the suspension bolt so as to sandwich the suspension bolt, and a flat plate-shaped attachment portion provided at the tip of the angle member has a hole. Insert the bolt-shaped brace and fasten the nuts on the top and bottom sides of the mounting part to fix the brace.

JP 2014-125812 A

  However, in the above prior art, when the brace is fixed to the mounting portion provided at the tip of the angle member, one nut is attached to the brace in advance, and the brace tip is inserted into the hole of the mounting portion, and then further. One nut is attached to the brace, and it is necessary to fasten and fix the two nuts to the mounting portion by using a manual tool such as a spanner.

  Accordingly, the present invention has been made to solve the above-described conventional problems, and provides a brace coupling metal fitting capable of performing a work for coupling a brace to a suspension bolt more efficiently than in the past. With the goal.

In order to achieve the above object, first, the present invention is a brace coupling metal fitting that is attached to sandwich a suspension bolt, and a pair that is attached to both ends of the fixing metal fitting via a coupling bolt. The brace support metal fitting is provided between the first metal fitting having a substantially L shape and the second metal fitting disposed opposite to the first metal fitting inside the first metal fitting. The first metal fitting has an insertion space into which a suspension bolt can be inserted. The first metal fitting is provided with a long hole through which the fastening bolt is inserted, and the second metal fitting has a female screw portion that is screwed with the fastening bolt. When the fastening bolt provided and inserted through the long hole is loosely attached to the female screw portion, the insertion space can be enlarged, and the fastening bolt inserted through the long hole is provided. tightening Chakuboruto is with respect to the female screw portion Wherein with said reduced insertion space first fitting and the second fitting is clamped and fixed to the hanger bolts by being, the pair of braces supporting bracket, brace in a state before the connecting bolt is tightened And a brace inserted through the insertion portion is clamped and fixed by reducing the insertion portion when the connecting bolt is tightened.

2ndly, this invention is a structure characterized by the above-mentioned 1st structure WHEREIN: The said fixing metal fitting is provided with the urging | biasing means urged | biased in the direction which reduces the said insertion space of a pair of said metal fittings.
Thirdly, the present invention has a fixing bracket attached so as to sandwich a suspension bolt, and a pair of brace support fittings attached to both ends of the fixing bracket via connecting bolts, There is an insertion space into which the suspension bolt can be inserted between a pair of metal fittings facing each other, and the insertion space is reduced by tightening a fastening bolt attached to the pair of metal fittings, so that the pair of metal fittings The pair of brace support fittings are clamped and fixed to the suspension bolt, and the pair of brace support fittings have an insertion portion through which the brace can be inserted in a state before the connection bolt is tightened. In the brace coupling bracket that clamps and fixes the brace inserted into the insertion portion by reducing the size of the portion, the fixing bracket is formed by the pair of brackets. That on both sides of the insertion space, a structure characterized by comprising biasing means for biasing in a direction to shrink the insertion space.

Fourth, the present invention has hanging a fixing bracket attached to clamped bolts, and a pair of braces supporting bracket which is attached via a connecting bolt at both ends of the fixing bracket, wherein the fixing bracket is There is an insertion space into which the suspension bolt can be inserted between a pair of metal fittings facing each other, and the insertion space is reduced by tightening a fastening bolt attached to the pair of metal fittings, so that the pair of metal fittings The pair of brace support fittings are clamped and fixed to the suspension bolt, and the pair of brace support brackets have an insertion portion through which the brace can be inserted before the connection bolt is tightened, and the insertion is performed when the connection bolt is tightened. in brace connecting fitting parts is reduced by that sandwiched fixing the inserted through brace into the insertion portion, the insertion space on at least one of the pair of brackets A protrusion projecting inward is provided, and the tip of the protrusion is configured to engage with the outer peripheral surface of the suspension bolt. The tip of the protrusion has an axial length of the suspension bolt. It is the structure characterized by being larger than the thread pitch of the said suspension bolt.

Fifth , the present invention is characterized in that, in the fourth configuration, the protrusion is hollow inside.
Sixth, the present invention is characterized in that, in the fourth or fifth configuration, the fixing bracket further includes biasing means for biasing in a direction of reducing the insertion space of the pair of brackets. It is a configuration.

Seventh, the present invention provides a brace connecting fitting for connecting the suspension is fixed to the outer peripheral surface of the bolt the hanging Ri bolts and braces, a fixed portion fixed to the hanger bolts, in the axial direction of the hanger rod And a pair of flat plate-like support portions extending from the fixed portion so as to form a right angle with each other, and a female screw portion for mounting a connecting bolt is formed on each of the pair of support portions. And a brace support bracket that sandwiches and supports the brace between the first plate member and the second plate member, and the brace support bracket includes the first plate member and the second plate. member and the connecting bolt at one end is mounted in, by the fastening bolts are fastened to the other end, wherein the first plate member and the second plate member is in close contact with the brace break Which is a structure which is characterized in that presses and fixes.

Eighth , the present invention is a brace coupling fitting that is fixed to the outer peripheral surface of the suspension bolt and connects the suspension bolt and the brace, and includes a fixing portion that is secured to the suspension bolt, and an axial direction of the suspension bolt. And a pair of flat plate-like support portions extending from the fixed portion so as to form a right angle with each other, and a female screw portion for mounting a connecting bolt is formed on each of the pair of support portions. A fixed metal fitting, a substantially semi-cylindrical engagement portion that engages with an outer peripheral surface of a bolt-shaped brace, and a flat plate portion that extends to one side of the engagement portion. A brace support fitting having a bolt insertion hole formed in a portion thereof, wherein the brace support fitting has the connection bolt inserted into the bolt insertion hole, and the connection bolt is loosely attached to the female screw portion. The brace is engaged when the The connecting bolt is fastened and fixed to the female screw portion in a state where the brace is accommodated inside the engaging portion, so that the engaging portion is attached to the brace. In the brace connection fitting that presses and fixes the brace in close contact , the brace support fitting includes a first flat plate portion provided with the engagement portion in the center and extending to one side of the engagement portion; A second flat plate portion extending on the other side of the engaging portion, and a first member in which the bolt insertion hole is formed in each of the first flat plate portion and the second flat plate portion, A flat plate-like member disposed to face the first member, wherein a first hole is formed at a position aligned with the bolt insertion hole formed in the first flat plate portion, and the second A second hole at a position aligned with the bolt insertion hole formed in the flat plate portion A second member having a female screw formed in the second hole, the bolt insertion hole formed in the first flat plate portion of the first member, and the first member of the second member. When the connecting bolt is inserted through the hole and the connecting bolt is loosely attached to the female screw portion, the gap between the first member and the second member is increased. A brace can be accommodated inside the engaging portion, and the connecting bolt is fastened and fixed to the female screw portion in a state where the brace is accommodated inside the engaging portion, and the first member When the fastening bolt inserted into the bolt insertion hole formed in the second flat plate portion is fastened and fixed to the female screw of the second hole, the engaging portion is brought into close contact with the brace And the brace is sandwiched between the first member and the second member It is the structure characterized by fixing to.

Ninth, the present invention provides a brace connecting fitting, a fixing bracket attached hanging bolts so as to sandwiched, and a pair of braces supporting bracket which is attached via a connecting bolt at both ends of the fixing bracket Yes The fixing bracket has an insertion space in which the suspension bolt can be inserted between a pair of metal fittings facing each other, and the insertion space is reduced by tightening a fastening bolt attached to the pair of metal fittings. The pair of metal fittings are clamped and fixed to the suspension bolts, and the pair of brace support metal fittings include a first plate member and a second plate member, and the first plate member and the second plate The connecting bolt is attached to one end of the member, and a bolt different from the connecting bolt is attached to the other end, and the brace is placed between the first plate member and the second plate member. By both ends clamped state, it is configured to clamped fixing the brace.

  According to the present invention, since it is not necessary to attach a nut to the brace in the construction work for connecting the brace to the suspension bolt, work efficiency when fixing the brace is improved. In particular, according to the brace coupling fitting of the present invention, the brace can be fixed using an electric tool, so that the working efficiency is remarkably improved as compared with the prior art.

It is an external appearance perspective view of the brace coupling metal fitting in 1st Embodiment. It is a perspective view which decomposes | disassembles and shows the structural member of the brace coupling metal fitting in 1st Embodiment. It is a perspective view which illustrates the attachment aspect to the suspension bolt of a brace coupling metal fitting. It is a figure which shows the process of fixing a fixing bracket to a suspension bolt using an electric tool. It is a figure which shows the operation | work process at the time of attaching a brace in 1st Embodiment. It is a side view which shows an example in the state where the brace was attached to the brace coupling metal fitting of 1st Embodiment. It is a perspective view which shows the state which assembled | attached each component of the brace coupling metal fitting beforehand. It is a top view which shows the state which assembled | attached each component of the brace coupling metal fitting beforehand. It is a figure which shows the process of inserting a suspension bolt in insertion space. It is a figure which shows the state which temporarily fixed the brace coupling metal fitting to the suspension bolt. It is a figure which shows the process of inserting a brace in an insertion part. It is a figure which shows the construction state with which the brace was connected with respect to the suspension bolt. It is a figure which shows the modification of the engagement protrusion provided in the 1st metal fitting of a fixing metal fitting. It is a top view which shows the case where a brace coupling metal fitting is comprised using the 1st metal fitting provided with the projection part. It is sectional drawing which shows the state temporarily fixed in the state which clamped the suspension bolt with the 1st metal fitting and the 2nd metal fitting by the contraction effect | action of a binding member. It is a figure which shows the state which temporarily fixed the brace coupling metal fitting to the suspension bolt. It is a figure which shows the example in which a projection part bites into the screw groove of a suspension bolt. It is an external appearance perspective view of the brace coupling metal fitting in 2nd Embodiment. It is a perspective view which decomposes | disassembles and shows the structural member of the brace coupling metal fitting in 2nd Embodiment. It is a figure which shows the operation | work process at the time of attaching a brace in 2nd Embodiment. It is a side view which shows an example in the state where the brace was attached to the brace coupling metal fitting of 2nd Embodiment. It is an external appearance perspective view of the brace coupling metal fitting in 3rd Embodiment. It is a perspective view which decomposes | disassembles and shows the structural member of the brace coupling metal fitting in 3rd Embodiment. It is a figure which shows the operation | work process at the time of attaching a brace in 3rd Embodiment. It is a side view which shows an example in the state where the brace was attached to the brace coupling metal fitting of 3rd Embodiment. It is an external appearance perspective view of the brace coupling metal fitting in 4th Embodiment. It is a perspective view which decomposes | disassembles and shows the structural member of the brace coupling metal fitting in 4th Embodiment. It is a figure which shows the operation | work process at the time of attaching a brace in 4th Embodiment. It is a perspective view which shows the brace coupling metal fitting in 5th Embodiment. It is a top view which shows the brace coupling metal fitting in 5th Embodiment. It is a figure which shows an example of the operation | work which attaches a brace to a brace support metal fitting. It is a figure which shows the modification of a brace coupling metal fitting.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings. In addition, in each drawing referred to below, the same code | symbol is attached | subjected to the mutually common member, and the overlapping description about them is abbreviate | omitted.

(First embodiment)
FIG. 1 is an external perspective view of the brace connection fitting 1 according to the first embodiment of the present invention, and FIG. 2 is an exploded perspective view showing components of the brace connection fitting 1. FIG. 3 is a perspective view illustrating a manner of attaching the brace fitting 1 to the suspension bolt 8. As shown in FIGS. 1 and 2, the brace connecting bracket 1 includes a fixing bracket 2 fixed to the suspension bolt 8 and a pair of brace support brackets 3a and 3b connected to both sides of the fixing bracket 2. Each of the pair of brace support fittings 3a and 3b is configured to support an end portion of a bolt-shaped brace disposed in an oblique direction.

  As shown in FIG. 2, the fixing metal fitting 2 includes a first metal fitting 10 formed by bending a metal plate into a substantially L shape, and a second metal fitting 20 formed by bending the metal plate into a substantially W shape. The first metal fitting 10 and the second metal fitting 20 are fixed by bolts 18. The 1st metal fitting 10 and the 2nd metal fitting 20 are a pair of members which comprise the fixed metal fitting 2, and are arrange | positioned facing each other.

  The first metal fitting 10 includes a bent portion 11 bent 90 degrees in an arc shape provided at the center thereof, and a pair of flat plate-like support portions 5a extending so as to form a right angle from both sides of the bent portion 11. 5b. An engagement protrusion 12 that engages with a screw groove formed on the outer peripheral surface of the suspension bolt 8 is provided inside the arc-shaped bent portion 11. For example, as shown in FIG. 2, the engagement protrusion 12 is configured by a plurality of claw-shaped protrusions extending in the vertical direction extending in the horizontal direction (horizontal direction) along the longitudinal direction of the first metal fitting. Each of the pair of support portions 5a and 5b is formed with a long hole 13 that is long in the lateral direction so that the bolt 18 can be inserted therethrough, and a connecting bolt 38 that is further on the tip side than the long hole 13 is formed. A female screw portion 14 for mounting is formed. In this embodiment, the case where the female screw part 14 is comprised with the nut 15 previously fixed to support part 5a, 5b is illustrated. However, the present invention is not limited to this. For example, a wall portion raised from the surface of the support portions 5a and 5b is integrally formed around the hole by burring the hole, and a female screw is formed inside the wall portion. The female screw portion 14 may be provided by forming it.

  The second metal fitting 20 includes a curved portion 21 that is curved in an arc shape provided at the center thereof, and a pair of flat plate portions that extend from both sides of the curved portion 21 so as to form a right angle with each other. It is formed in a general W shape. Then, on the flat plate portions located on both sides of the bending portion 21, female screw portions 24 that are screwed with the bolts 18 are formed. In the present embodiment, the case where the female screw portion 24 is configured by a nut 25 fixed in advance to the second metal fitting 20 is illustrated. However, the present invention is not limited to this. For example, a wall formed from the surface of the second metal fitting 20 is integrally formed around the hole by burring the hole formed in the second metal fitting 20, and the wall The female screw portion 24 may be provided by forming a female screw inside the portion. Further, on the inner side of the bending portion 21, similarly to the bending portion 11, an engagement protrusion 12 that engages with a screw groove formed on the outer peripheral surface of the suspension bolt 8 is provided. The engagement protrusion 12 may be provided on either the first metal fitting 10 or the second metal fitting 20.

  The fixing metal fitting 2 is attached so that the suspension bolt 8 is sandwiched between the bent portion 11 provided on the first metal fitting 10 and the bending portion 21 provided on the second metal fitting 20. Therefore, the bent portion 11 of the first metal fitting 10 and the curved portion 21 of the second metal fitting 20 function as the fixing portion 4 fixed to the suspension bolt 8.

  The brace support fittings 3a and 3b have the same configuration. That is, the brace support fittings 3 a and 3 b are each configured to include the first member 31 and the second member 32.

  The first member 31 is a member configured by bending a metal plate, and an engagement portion 31a that is curved in a substantially semicircular shape so as to engage with the outer peripheral surface of the brace is provided at the center thereof, It has the 1st flat plate part 31b extended in one side of the engaging part 31a, and the 2nd flat plate part 31c extended in the other side of the engaging part 31a. Bolt insertion holes 34a and 34b for inserting bolts are formed in each of the first flat plate portion 31b and the second flat plate portion 31c. Further, like the bent portion 11, an engagement protrusion 12 that engages with a screw groove formed on the outer peripheral surface of the brace is provided inside the curved engagement portion 31 a.

  The second member 32 is a flat plate member disposed opposite to the first member 31, and a first hole 35a is formed at a position aligned with the bolt insertion hole 34a formed in the first flat plate portion 31b. In addition, a second hole 35b is formed at a position aligned with the bolt insertion hole 34b formed in the second flat plate portion 31c, and a female screw is formed in the second hole 35b. In this embodiment, the case where the 2nd hole 35b in which the internal thread was formed is comprised with the nut 36 previously fixed to the 2nd member 32 is illustrated. However, the present invention is not limited to this. For example, by performing burring on the second hole 35b formed in the second member 32, a wall portion raised from the surface of the second member 32 is integrally formed around the hole. However, the female screw may be formed by forming the female screw inside the wall portion.

  In such brace support fittings 3a and 3b, connecting bolts 38 are inserted in advance into the bolt insertion holes 34a provided in the first member 31 and the first holes 35a provided in the second member 32. The connecting bolt 38 is attached in advance to the first metal fitting 10 of the fixing metal fitting 2 by being mounted in a state where the tip of the connecting bolt 38 is loosely screwed with the female screw portion 14 of the fixing metal fitting 2. As shown in FIG. 3, the brace coupling fitting 1 is operated by the operator with the brace support fittings 3 a and 3 b loosely attached to the first fitting 10 of the fixing fitting 2, and the suspension bolt 8 is fixed. Fixed in position. For example, in the example shown in FIG. 3, the worker arranges the second metal fitting 20 so as to sandwich the suspension bolt 8 in a state where the suspension bolt 8 is joined to the inside of the bent portion 11 provided in the first metal fitting 10. Then, the bolt 18 is inserted into the elongated hole 13 of the first metal fitting 10, and the tip of the bolt 18 is screwed into the female screw portion 24 of the second metal fitting 20 to temporarily fix the second metal fitting 20. Thereafter, the operator attaches the tool tip of the power tool to the head of the bolt 18 and operates the power tool, whereby the bolt 18 is fastened to the female screw portion 24 and the suspension bolt 8 is sandwiched between them. Thus, the first metal fitting 10 and the second metal fitting 20 are firmly fixed to the suspension bolt 8.

  At this time, since the bolt 18 is inserted into the long hole 13 provided in the first metal fitting 10, the second metal fitting 20 is separated from the first metal fitting 10 as the bolt 18 is tightened by the electric tool. Can be reduced smoothly. FIG. 4 is a view showing a state before and after the bolt 18 is fastened by the electric tool. FIG. 4A shows a state where the bolt 18 is temporarily fixed to the female screw portion 24, and FIG. A state in which the bolt 18 is firmly fastened to the female screw portion 24 is shown. First, as shown in FIG. 4A, when the bolt 18 is temporarily fixed to the female screw portion 24, the bolt 18 is positioned near the tips of the support portions 5 a and 5 b inside the long hole 13. Yes. In this state, when the tool tip 5 of the electric tool is mounted on the head of the bolt 18 and the electric tool is operated and the bolt 18 is screwed into the female screw portion 24, the first metal fitting 20 and the first metal fitting 20 are connected. The distance from the metal fitting 10 is gradually reduced. At this time, the other bolt 18 to which the tool tip 5 of the electric tool is not attached moves inside the elongated hole 13 so as to approach the suspension bolt 8 from a position near the tip of the support portions 5a and 5b. Therefore, as the bolt 18 is tightened by the electric tool, the distance between the second metal fitting 20 and the first metal fitting 10 can be smoothly reduced as indicated by the arrow F. When the fastening operation of the two bolts 18 by the electric tool is finished, as shown in FIG. 4B, both the two bolts 18 move to a position close to the suspension bolt 8 inside the elongated hole 13 and are bent. 11 and the curved portion 21 are in a state of sandwiching the suspension bolt 8 in a state where the left and right sides are substantially equal. And when an operator performs the operation | work which fastens the volt | bolt 18 using an electric tool, since an operation | work can be performed from the outer side of the brace coupling metal fitting 1, it is easy to work and it is excellent in work efficiency.

  When the fixing bracket 2 of the brace coupling bracket 1 is fixed to the suspension bolt 8 as described above, the bolt-shaped brace is then attached to the brace support brackets 3a and 3b. FIG. 5 is a diagram illustrating an example of a work process when the brace 9 is attached. First, as shown in FIG. 5A, when the first member 31 and the second member 32 of the brace support fittings 3a and 3b are loosely attached to the fixing fitting 2 by the connecting bolt 38, the first member 31 and the second member 32 are attached. None of the two members 32 is fixed, and the two members 32 are rotatable about the connecting bolt 38 as an axis. Therefore, the operator rotates the first member 31 and the second member 32 according to the arrangement angle of the brace 9.

  Next, the operator houses the brace 9 inside the first member 31 and the second member 32. That is, the connecting bolt 38 is inserted into the bolt insertion hole 34 a of the first member 31 and the first hole 35 a of the second member 32, and the connecting bolt 38 is loosely attached to the female screw portion 14. In the state, the distance between the first member 31 and the second member 32 can be increased as shown in FIG. In particular, as shown in FIG. 5 (b), if the fastening bolt 39 for connecting the first member 31 and the second member 32 is not installed, the distal end side of the first member 31 and the second member 32 is placed. Can be greatly expanded. The brace 9 can be accommodated inside the engaging portion 31 a provided in the first member 31 from the open portion where the tips of the first member 31 and the second member 32 are expanded. Therefore, an operator expands the 1st member 31 and the 2nd member 32, and accommodates the brace 9 inside the engaging part 31a.

  Next, the operator inserts the fastening bolt 39 into the bolt insertion hole 34b of the first member 31 in a state where the brace 9 is housed inside the engaging portion 31a as shown in FIG. The tip of the bolt 39 is screwed into a female screw in a second hole 35 b provided in the second member 31 and temporarily fixed. By this temporary fixing, the brace 9 is prevented from being detached from the inside of the engaging portion 31a.

  Next, as shown in FIG. 5 (d), the operator attaches the tool tip 5 of the electric tool to the heads of the connecting bolt 38 and the fastening bolt 39, and operates the electric tool to connect the connecting bolt 38 and Each of the fastening bolts 39 is tightened. That is, the connecting bolt 38 is fastened and fixed to the female screw portion 14 using an electric tool, and the fastening bolt 39 is fastened and fixed to the female screw of the second hole 35b, as shown in FIG. Thus, the engaging portion 31a is in close contact with the brace 9, and the brace 9 can be pressed and fixed in a state of being sandwiched between the first member 31 and the second member 32. When the operator performs the fastening work of the connecting bolt 38 and the fastening bolt 39 using the electric tool, the work can be performed from the outside of the brace fitting 1, so that the work is easy and the work efficiency is excellent. Yes.

  FIG. 6 is a side view showing an example of a state in which the brace 9 is attached to the brace coupling fitting 1. FIG. 6A shows a state in which the brace coupling bracket 1 is attached to the upper part of the suspension bolt 8 and the brace support brackets 3a and 3b support the brace 9 obliquely downward. On the other hand, FIG. 6B shows a state in which the brace coupling fitting 1 is attached to the lower part of the suspension bolt 8 and the brace support fittings 3a and 3b support the brace 9 obliquely upward. That is, the brace connecting bracket 1 of the present embodiment rotates the brace supporting brackets 3a and 3b around the connecting bolt 38 as an axis, thereby changing the installation angle of the brace supporting brackets 3a and 3b with respect to the fixing bracket 2. Since the angle can be adjusted, the brace 9 can be held at an arbitrary angle. In addition, the brace coupling bracket 1 of the present embodiment is provided with a pair of support portions 5a and 5b on the left and right sides of the fixing bracket 2, and the pair of brace support brackets 3a and 3b are attached to the support portions 5a and 5b. Therefore, the two braces 9 can be held in a state where they are arranged at different angles.

  As described above, in the brace coupling bracket 1 of the present embodiment, the pair of brace support brackets 3a and 3b are attached to the fixing bracket 2 fixed to the suspension bolt 8, and each of the pair of brace support brackets 3 and 3b is oblique. It is the structure which clamps the edge part of the brace 9 arrange | positioned in a direction. That is, the first member 31 and the second member 32 constituting the brace support fittings 3a and 3b are firmly fixed to the brace 9 because both sides of the portion sandwiching the brace 9 are fixed by the connecting bolt 38 and the fastening bolt 39. Can be held.

  In addition, the brace connecting bracket 1 of the present embodiment is configured to connect the brace 9 to the suspension bolt 8 using a total of six bolts, and all the six bolts can be fastened using an electric tool. . In other words, if the brace coupling fitting 1 of the present embodiment is used, it is not necessary to attach a nut to the brace 9, so it is necessary to perform an operation of tightening the nut attached to the brace 9 using a manual tool such as a conventional spanner. There is no. Therefore, the working efficiency when connecting the brace 9 to the suspension bolt 8 is significantly improved as compared with the conventional case.

  In addition, when the bolt is fastened and fixed by using the electric tool, the brace connecting bracket 1 of the present embodiment is connected to the tool tip of the electric tool outside the brace connecting bracket 1 (the second bracket 20 is joined to the first bracket 10). It can be attached to the head of the bolt from the non-side. Therefore, compared with the case where an electric tool must be used inside the brace coupling 1, the work is easier to perform, and the work efficiency is improved in this respect as well.

  In the above, the first metal fitting 10 and the second metal fitting 20 of the fixing metal fitting 2 are separated in advance and the first metal fitting 10 and the second metal fitting are inserted so as to sandwich the suspension bolt 8 when the brace connecting metal fitting 1 is constructed. 20 is disposed so as to face each other and the first metal fitting 10 and the second metal fitting 20 are connected using the bolts 18, and the fastening bolts 39 are also attached to the pair of brace support metal fittings 3 a and 3 b. The case where it mounts later was illustrated. However, the above-described brace coupling fitting 1 can be applied even in a state where the respective parts are assembled in advance. Hereinafter, the construction method of the brace coupling fitting 1 in this case will be described in detail.

  7 and 8 are views showing a state in which the components of the brace coupling fitting 1 are assembled in advance, FIG. 7 is a perspective view thereof, and FIG. 8 is a plan view thereof. In the state before construction of the brace coupling fitting 1, as shown in FIGS. 7 and 8, all of the bolts 18, the coupling bolts 38, and the fastening bolts 39 are loosely engaged with the female screws. . By attaching the bolts 18 and the fastening bolts 39 in advance in this manner, the parts are not separated, and the parts management during construction is simplified.

  When the bolt 18 is inserted into the long hole 13 of the first metal fitting 10 and the tip thereof is loosely attached to the female screw portion 24 of the second metal fitting 20, the distance between the first metal fitting 10 and the second metal fitting 20 is increased. It can be expanded within a range regulated by the length of the bolt 18. And when the space | interval of the 1st metal fitting 10 and the 2nd metal fitting 20 is widened, as shown in FIG. 8, the fixing metal fitting 2 is between the 1st metal fitting 10 and the 2nd metal fitting 20 arrange | positioned facing each other. An insertion space 7 into which the suspension bolt 8 can be inserted is formed.

  Further, in the pair of brace support brackets 3 a and 3 b, the fastening bolt 39 is inserted into the bolt insertion hole 34 b of the first member 31, and the tip thereof is inserted into the female screw of the second hole 35 b provided in the second member 32. When loosely attached, the distance between the first member 31 and the second member 32 can be increased within a range regulated by the length of the fastening bolt 39. And when the space | interval of the 1st member 31 and the 2nd member 32 is expanded, brace support metal fittings 3a and 3b are between the engaging part 31a of the 1st member 31, and the 2nd member 32, as shown in FIG. In addition, the insertion portion 6 through which the brace 9 can be inserted is formed.

  As shown in FIG. 9, when the brace coupling metal fitting 1 is constructed in a state where the respective parts are assembled in advance as described above, the operator can perform the first operation with the pair of bolts 18 of the brace coupling metal fitting 1 being loosened. By extending the space between the first metal fitting 10 and the second metal fitting 20, the insertion space 7 into which the suspension bolt 8 can be inserted is expanded, and the suspension bolt 8 is inserted from the lower end into the insertion space 7 as indicated by the arrow F. By doing so, the brace coupling fitting 1 is arranged at the attachment position of the suspension bolt 8. However, in a state where the brace connecting bracket 1 is simply disposed at the attachment position of the suspension bolt 8, the first metal fitting 10 and the second metal fitting 20 are not fixed, so that the operator releases the hand from the brace connecting metal fitting 1. As a result, the brace coupling 1 may be displaced downward from the suspension bolt 8. In order to prevent this, the operator places the brace connecting bracket 1 at the attachment position of the suspension bolt 8, and then attaches the fastener 40 a made up of a clip or the like to the lower end position of the brace connection bracket 1. The brace connecting bracket 1 is temporarily fixed by attaching to. When the brace connecting bracket 1 is temporarily fixed by the fastener 40a, the lower portion of the brace connecting bracket 1 is supported by the fastener 40a as shown in FIG. Even if it is a case where it releases | separates, it can prevent that the brace | joint metal fitting 1 shifts | deviates to a downward position from an attachment position, or falls out from the suspension bolt 8. FIG. In the example of FIG. 10, a state is shown in which the brace coupling fitting 1 is temporarily fixed at two upper and lower portions of the suspension bolt 8 hanging from the ceiling slab S. In this case, the brace connection fitting 1 disposed on the upper part of the suspension bolt 8 is temporarily fixed at a predetermined distance X1 from the ceiling slab S, and the brace connection fitting 1 disposed on the lower part of the suspension bolt 8 is provided at the lower end of the suspension bolt 8. The case where it is temporarily fixed to the position of predetermined distance X2 from is illustrated. These distances X1 and X2 can be appropriately set according to the construction environment and the like.

  Then, the operator fixes the temporarily fixed brace coupling 1 to the attachment position of the suspension bolt 8. That is, the operator attaches the tool tip of the power tool to the head of the bolt 18 and operates the power tool, so that the bolt 18 is screwed into the female screw portion 24, and the first metal fitting 10 and the first metal fitting 10. The interval between the two metal fittings 20 is narrowed. Accordingly, the gap (insertion space 7) between the bent portion 11 of the first metal fitting 10 and the curved portion 21 of the second metal fitting 20 is gradually reduced. By fastening and fixing the pair of bolts 18, the first metal fitting 10 and the second metal fitting 10 with the suspension bolt 8 sandwiched between the bent portion 11 of the first metal fitting 10 and the curved portion 21 of the second metal fitting 20. 20 is firmly fixed to the suspension bolt 8. At this time, the engagement protrusion 12 provided on the inner side of the bent portion 11 and the curved portion 21 engages with the screw groove of the suspension bolt 8, so that the brace coupling bracket 1 moves up and down along the axial direction of the suspension bolt 8. Can be prevented. Thus, if the brace coupling metal 1 is fixed to the suspension bolt 8, the fastener 40a will become unnecessary after that. Therefore, the fastener 40a may be removed from the suspension bolt 8 as the fastening operation of the pair of bolts 18 ends.

  Subsequently, before tightening the connecting bolt 38 and the fastening bolt 39, the operator inserts the brace 9 into the insertion portion 6 provided between the first member 31 and the second member 32 of the brace support fittings 3 a and 3 b. Is inserted. That is, the operator widens the space between the first member 31 and the second member 32 to widen the insertion portion 6 through which the brace 9 can be inserted, and the end portion of the brace 9 as shown in FIG. Insert into the insertion part 6. At this time, since the first member 31 and the second member 32 are rotatable about the connecting bolt 38 as an axis, the operator can change the first member 31 and the second member according to the arrangement angle of the brace 9. By rotating 32, the posture of the first member 31 and the second member 32 can be adjusted to the arrangement angle of the brace 9. Then, the operator inserts the end portion of the brace 9 into the insertion portion 6 to house the brace 9 inside the first member 31 and the second member 32, and then uses the power tool to connect the connecting bolt 38 and the fastening bolt. Tighten each of 39. As a result, as shown in FIG. 11B, the engaging portion 31 a of the first member 31 comes into close contact with the outer peripheral surface of the brace 9, and the brace 9 is sandwiched between the first member 31 and the second member 32. It can be pressed and fixed in the state. Further, the brace support fittings 3a and 3b are fixed to the fixing fitting 2 by fastening and fixing the connecting bolt 38, so that the arrangement angle of the brace 9 is fixed simultaneously. When the operator performs the fastening operation of the connection bolt 38 and the bolt 39 using the electric tool, the operation can be performed from the outside of the brace connection fitting 1, so that the operation is easy and the work efficiency is excellent.

  When the construction work is completed as described above, the brace coupling fitting 1 is fixed to the suspension bolt 8 and the brace 9 is coupled to the suspension bolt 8 via the brace coupling fitting 1 as shown in FIG. It becomes a state. And in the construction method mentioned above, since it can work in the state which integrated each component of the brace coupling metal fitting 1, it is excellent in work efficiency. In the construction method described above, since the brace 9 is clamped and fixed by the brace support fittings 3a and 3b, it is not necessary for the operator to perform a work of attaching a nut to the brace 9. Therefore, the construction method described above is excellent in work efficiency, and the construction can be completed in a short time.

  Next, FIG. 13 is a view showing a modification of the engagement protrusion 12 provided on the first metal fitting 10 of the fixing metal fitting 2, (a) is a perspective view of the first metal fitting 10, and (b) is the first metal fitting. 10 is a plan view, and FIG. 10C is an enlarged cross-sectional view of a portion where the engagement protrusion 12 is provided. As shown in FIG. 13A, the engagement protrusion 12 that engages with the outer peripheral surface of the suspension bolt 8 may be constituted by, for example, a protrusion 12a protruding in a cylindrical shape. As shown in FIG. 13C, the protrusion 12 a is formed to be hollow inside, and the thickness thereof is thinner than the main body portion of the first metal fitting 10. Such a protrusion 12a is formed, for example, by hitting or pressing the back side of the first metal fitting 10 (the outer surface of the bent portion 11). The protrusions 12a are provided at a plurality of locations inside the bent portion 11 as shown in FIGS. 13 (a) and 13 (b).

  Such a protruding portion 12 a is configured such that, for example, a flat tip is engaged with the outer peripheral surface of the suspension bolt 8. And the diameter D of the front-end | tip of the projection part 12a is formed so that it may become larger than the thread pitch of the suspension bolt 8. As shown in FIG.

  FIG. 14 shows a case where the brace coupling metal 1 is configured using the first metal fitting 10 provided with the protrusion 12 a as the engagement protrusion 12. In the brace connecting metal fitting 1 shown in FIG. 14, the protrusion 12 a is provided inside the bent portion 11 of the first metal fitting 10, and the engagement protrusion 12 is not provided inside the curved portion 21 of the second metal fitting 20. However, a similar protrusion 12 a may be provided inside the curved portion 21 of the second metal fitting 20. Further, instead of providing the protruding portion 12 a inside the bent portion 11 of the first metal fitting 10, the protruding portion 12 a may be provided inside the curved portion 21 of the second metal fitting 20. And when the 1st metal fitting 10 and the 2nd metal fitting 20 are assembled | attached, as shown in FIG. 14, the protrusion part 12a will be in the state protruded toward the inner side of the insertion space 7 which penetrates the suspension bolt 8. As shown in FIG.

  When the protrusion 12a as described above is provided, the first metal fitting 10 and the second metal fitting 20 are bound to the fixing metal fitting 2 by binding the first metal fitting 10 and the second metal fitting 20 as shown in FIG. A bundling member 40b that biases in the direction of close contact, that is, the direction of reducing the insertion space 7 is provided. The bundling member 40b is made of a stretchable belt-like member such as a rubber band, for example, and the first metal fitting 10 and the second metal fitting 20 are brought into close contact with each other before the brace connecting metal fitting 1 is constructed. Hold in state. Note that the bundling member 40b is not necessarily limited to a belt-like member, and for example, a clip having a function of biasing in the contraction direction may be used.

  When construction is performed using the brace coupling metal fitting 1 shown in FIG. 14, the worker first increases the distance between the first metal fitting 10 and the second metal fitting 20 against the urging force of the bundling member 40 b, thereby suspending bolts. The insertion space 7 into which 8 can be inserted is expanded, and the lower end of the suspension bolt 8 is inserted into the insertion space 7 as in FIG. 9. When the lower end of the suspension bolt 8 is inserted inside the insertion space 7, the operator may release his hand from the brace coupling fitting 1. This is because the first metal fitting 10 and the second metal fitting 20 are temporarily fixed in a state where the suspension bolt 8 is sandwiched in the insertion space 7 by the contracting action of the binding member 40b.

  FIG. 15 is a cross-sectional view showing a state in which the first metal fitting 10 and the second metal fitting 20 are temporarily fixed with the suspension bolt 8 sandwiched by the contracting action of the binding member 40b. Since the first metal fitting 10 and the second metal fitting 20 press the suspension bolt 8 from opposite directions to each other, the brace connection metal fitting 1 even when the operator releases the hand from the brace connection metal fitting 1 as shown in FIG. Is temporarily fixed at an arbitrary position of the suspension bolt 8. At this time, the second metal fitting 20 is in a state in which the inside of the curved portion 21 is in contact with the outer peripheral surface of the suspension bolt 8, and the first metal fitting 10 is in a state in which the tip of the protruding portion 12 a is in contact with the outer peripheral surface of the suspension bolt 8. Since the diameter D of the tip of the protrusion 12a is larger than the thread pitch P of the suspension bolt 8 as described above, the tip of the protrusion 12a does not enter between the threads (thread groove). As shown in FIG. 2, the suspension bolt 8 is in contact with the tops of a plurality of screw threads adjacent in the axial direction (vertical direction). This state is a state in which the brace coupling 1 can slide in the F1 direction or the F2 direction by sliding on the surface of the suspension bolt 8. Therefore, after inserting the suspension bolt 8 into the insertion space 7, the operator slides the brace connection bracket 1 in the vertical direction to easily arrange the brace connection bracket 1 with respect to the mounting position of the suspension bolt 8. Can do. Furthermore, since the operator can temporarily fix the brace connecting bracket 1 at an arbitrary position of the suspension bolt 8 by the contracting action of the bundling member 40b even if the operator releases his hand from the brace connecting bracket 1, it is necessary to use the fastener 40a as described above. There is no.

  FIG. 16 is a view showing a state in which the brace coupling fitting 1 is temporarily fixed by the binding member 40b. As shown in FIG. 16, the brace coupling bracket 1 is supported by the contracting action of the bundling member 40 b, and the brace coupling bracket 1 is attached even when the operator releases the hand from the brace coupling bracket 1. It is possible to prevent the position from being shifted downward from the position or falling off the suspension bolt 8. Note that, in the example of FIG. 16, as in the case of FIG. 10, the brace coupling fitting 1 is temporarily fixed at two upper and lower portions of the suspension bolt 8 that hangs down from the ceiling slab S.

  After that, the worker fixes the temporarily fixed brace coupling 1 to the attachment position of the suspension bolt 8. That is, the operator attaches the tool tip of the power tool to the head of the bolt 18 and operates the power tool, so that the bolt 18 is screwed into the female screw portion 24, and the first metal fitting 10 and the first metal fitting 10. The distance between the two metal fittings 20 is further narrowed. Along with this, the protrusion 12a is pressed against the thread of the suspension bolt 8 with a strong force, so that the protrusion 12a is crushed. As a result, as shown in FIG. 17, the protrusion 12 a bites into the thread groove of the suspension bolt 8, so that the fixing bracket 2 and the suspension bolt 8 are firmly fixed, and the brace coupling bracket 1 is attached to the suspension bolt 8. It can prevent moving up and down along the axial direction.

  Therefore, as described above, the brace fitting 1 provided with the protrusion 12a larger than the thread pitch P of the suspension bolt 8 and previously bundling the first fitting 10 and the second fitting 20 using the bundling member 40b has a construction efficiency. Is the best. In this case, the tip of the protrusion 12a is not necessarily flat. In other words, the protrusion 12a only needs to have a tip that contacts the outer peripheral surface of the suspension bolt 8 that can simultaneously contact the tops of the plurality of screw threads. Is larger than the thread pitch P of the suspension bolt 8.

(Second Embodiment)
FIG. 18 is an external perspective view of the brace connection fitting 1a according to the second embodiment of the present invention, and FIG. 19 is an exploded perspective view showing components of the brace connection fitting 1a. As shown in FIGS. 18 and 19, the brace connecting bracket 1 a is similar to the first embodiment in that the fixing bracket 2 fixed to the suspension bolt 8 and a pair of brace supports connected to both sides of the fixing bracket 2 are used. The brackets 3a and 3b are provided, and the pair of brace support brackets 3a and 3b each support an end portion of a bolt-shaped brace disposed in an oblique direction.

  As shown in FIG. 19, the fixture 2 is formed by bending a metal plate, which is formed in advance into a predetermined shape, into a substantially L shape, and a metal plate, which is bent into a substantially W shape. The first metal fitting 10 and the second metal fitting 20 are fixed by bolts 18. The second metal fitting 20 is the same as that described in the first embodiment.

  The first metal fitting 10 includes a bent portion 11 bent 90 degrees in an arc shape provided at the center thereof, and a pair of flat plate-like support portions 5a extending so as to form a right angle from both sides of the bent portion 11. 5b. In the present embodiment, the shape of the pair of support portions 5a and 5b is formed larger than that in the first embodiment. That is, the pair of support portions 5a and 5b provided on both end sides of the first metal fitting 10 includes, for example, a flat plate portion 41 that spreads on the front end side and the lower side so as to cover the range of a predetermined radius around the female screw portion 14. Have. The other points in the first metal fitting 10 are the same as in the first embodiment.

  On the other hand, the brace support fittings 3a and 3b are constituted by a single support member 42 formed by bending a metal plate. The support member 42 includes an engaging portion 43 that is curved in a substantially semicircular shape so as to engage with the outer peripheral surface of the brace 9 at a substantially central position. An engagement protrusion 12 that engages with a screw groove formed on the outer peripheral surface of the brace 9 is provided inside the engagement portion 43. The support member 42 has a first flat plate portion 44 extending to one side of the engaging portion 43 and a second flat plate portion 45 extending to the other side of the engaging portion 43. ing. A bolt insertion hole 46 for inserting a bolt is formed in the first flat plate portion 44.

  In such brace support fittings 3 a and 3 b, a connection bolt 38 is inserted in advance into a bolt insertion hole 46 provided in the support member 42, and the tip of the connection bolt 38 is connected to the female screw portion 14 of the fixing bracket 2. By mounting in a loosely screwed state, it is attached in advance to the first metal fitting 10 of the fixing metal fitting 2. When the brace support fittings 3a and 3b are attached to the first fitting 10 of the fixing fitting 2 by the connecting bolt 38, the bracing support fittings 3a and 3b can be rotated about the connecting bolt 38 as an axis. And the flat plate part 41 of the 1st metal fitting 10 is provided so that the rotation range of the 2nd flat plate part 45 may be covered when the brace support metal fittings 3a and 3b rotate within a predetermined angle range centering on the connection bolt 38.

  Then, the brace coupling fitting 1a is suspended by the operator while the brace support fittings 3a, 3b are loosely attached to the first fitting 10 of the fixing fitting 2, as in the first embodiment. The bolt 8 is fixed at a predetermined position. That is, the operator arranges the second metal fitting 20 so as to sandwich the suspension bolt 8 in a state where the suspension bolt 8 is joined to the inside of the bent portion 11 provided in the first metal fitting 10, and the bolt 18 is attached to the first metal fitting 10. While passing through the long hole 13 of the metal fitting 10, the tip of the bolt 18 is screwed into the female screw portion 24 of the second metal fitting 20 to temporarily fix the second metal fitting 20. Thereafter, the operator attaches the tool tip of the power tool to the head of the bolt 18 and operates the power tool, whereby the bolt 18 is fastened to the female screw portion 24 and the suspension bolt 8 is sandwiched between them. Thus, the first metal fitting 10 and the second metal fitting 20 are firmly fixed to the suspension bolt 8.

  When the fixing bracket 2 of the brace coupling bracket 1a is fixed to the suspension bolt 8 as described above, the bolt-shaped brace 9 is then attached to the brace support brackets 3a and 3b. FIG. 20 is a diagram illustrating an operation process when the brace 9 is attached. First, as shown in FIG. 20A, when the support member 42 of the brace support fittings 3a and 3b is loosely attached to the fixing fitting 2 by the connecting bolt 38, the support member 42 is not fixed as described above. Instead, it can be rotated with the connecting bolt 38 as an axis. Therefore, the operator rotates the support member 42 according to the arrangement angle of the brace 9.

  Next, the operator accommodates the brace 9 inside the support member 42. That is, when the support member 42 is not fixed by the connecting bolt 38, the front end of the support member 42 can be separated from the flat plate portion 41 and expanded as shown in FIG. It can be accommodated inside the provided engaging portion 43. Therefore, the operator expands the support member 42 and accommodates the brace 9 inside the engaging portion 43.

  Next, the operator attaches the tool tip 5 of the electric tool to the head of the connecting bolt 38 in a state where the brace 9 is accommodated inside the engaging portion 31a as shown in FIG. The connecting bolt 38 is tightened by operating. That is, the connecting bolt 38 is fastened and fixed to the female screw portion 14 by using an electric tool, so that the engaging portion 43 is in close contact with the brace 9 as shown in FIG. 42 and the flat plate portion 41 can be pressed and fixed. When the operator performs the fastening work of the connecting bolt 38 using the electric tool, the work can be performed from the outside of the brace connecting metal fitting 1a, so that the work is easy and the work efficiency is excellent.

  FIG. 21 is a side view showing an example of a state in which the brace 9 is attached to the brace coupling fitting 1a. FIG. 21A shows a state in which the brace connecting bracket 1a is attached to the upper portion of the suspension bolt 8, and the brace support brackets 3a and 3b support the brace 9 obliquely downward. On the other hand, FIG. 21B shows a state in which the brace coupling fitting 1a is attached to the lower part of the suspension bolt 8, and the brace support fittings 3a and 3b support the brace 9 obliquely upward. In other words, the brace coupling bracket 1a of the present embodiment rotates the brace support brackets 3a and 3b about the coupling bolt 38 as an axis, thereby changing the installation angle of the brace support brackets 3a and 3b with respect to the fixing bracket 2. Since the angle can be adjusted, the brace 9 can be held at an arbitrary angle. In addition, the brace coupling bracket 1a of the present embodiment is provided with a pair of support portions 5a and 5b on the left and right sides of the fixing bracket 2, and the pair of brace support brackets 3a and 3b are attached to the support portions 5a and 5b. Therefore, the two braces 9 can be held in a state where they are arranged at different angles.

  As described above, in the brace connecting bracket 1a of the present embodiment, the pair of brace support brackets 3a and 3b are attached to the fixing bracket 2 fixed to the suspension bolt 8, and each of the pair of brace support brackets 3 and 3b is oblique. It is the structure which clamps the edge part of the brace 9 arrange | positioned in a direction. That is, the support member 42 constituting the brace support fittings 3a and 3b can be held in a state where the brace 9 is sandwiched by being fixed at one point by the connecting bolt 38.

  Further, the brace coupling fitting 1a of the present embodiment has a configuration in which the brace 9 is coupled to the suspension bolt 8 using a total of four bolts, and all of these four bolts can be fastened using an electric tool. . That is, if the brace coupling fitting 1a of the present embodiment is used, it is not necessary to attach a nut to the brace 9, and therefore it is necessary to perform an operation of tightening the nut attached to the brace 9 using a manual tool such as a conventional spanner. There is no. Moreover, since the brace connection metal fitting 1a of this embodiment has few bolts compared with 1st Embodiment, the frequency | count of fastening work using an electric tool decreases. Therefore, the working efficiency when connecting the brace 9 to the suspension bolt 8 is further improved than in the first embodiment.

  In addition, as in the first embodiment, the brace coupling bracket 1a of the present embodiment is configured so that the tool tip of the electric tool is positioned outside the brace coupling bracket 1a (first bracket) when the bolt is fastened and fixed using the electric tool. 10 can be attached to the head of the bolt from the side where the second metal fitting 20 is not joined. Therefore, compared with the case where an electric tool must be used inside the brace coupling fitting 1a, the work is easier to perform, and the work efficiency is also improved in this respect.

  In this embodiment, as described in the first embodiment, the first metal fitting 10 and the second metal fitting 20 of the fixing metal fitting 2 may be applied in a state where they are assembled in advance. That is, by separating the first metal fitting 10 and the second metal fitting 20 with the pair of bolts 18 loosened, the insertion space 7 of the suspension bolt 8 is widened, and the suspension bolt 8 is inserted into the insertion space 7 to brace it. You may make it arrange | position the coupling metal 1 to the attachment position of the suspension bolt 8. FIG. Also in this embodiment, the engaging protrusion 12 is configured as the protrusion 12a as described in the first embodiment, and the first metal fitting 10 and the second metal fitting 20 are previously bundled using the bundling member 40b. You may do it.

(Third embodiment)
FIG. 22 is an external perspective view of the brace coupling fitting 1b according to the third embodiment of the present invention, and FIG. 23 is an exploded perspective view showing components of the brace coupling fitting 1b. As shown in FIGS. 22 and 23, the brace connecting bracket 1b includes a fixing bracket 2 fixed to the suspension bolt 8 and a pair of braces connected to both sides of the fixing bracket 2, as in the above-described embodiments. Support brackets 3a and 3b are provided, and each of the pair of brace support brackets 3a and 3b is configured to support an end portion of a bolt-shaped brace 9 disposed in an oblique direction.

  As shown in FIG. 23, the fixing metal fitting 2 includes a first metal fitting 10 formed by bending a metal plate into an approximately L shape, and a second metal fitting 20 formed by bending the metal plate into an approximately W shape. The first metal fitting 10 and the second metal fitting 20 are fixed by bolts 18. Here, the first metal fitting 10 is different from that described in the first embodiment in that the female screw portion 14 is not provided at a position where the connection bolt 38 is inserted in the pair of support portions 5a and 5b. The first hole 61 is formed at the point. On the other hand, the second metal fitting 20 is the same as that described in the first embodiment.

  The brace support fittings 3a and 3b are configured by a single support member 51 formed by bending a metal plate. The support member 51 has a substantially C-shaped engagement portion 52 that is engaged with the outer peripheral surface of the bolt-shaped brace 9 and an open tip of the engagement portion 52 so as to form a predetermined angle with each other. It has a pair of flat plate portions 53, 54 provided in an expanded manner, and the distance between the pair of flat plate portions 53, 54 is the diameter of the brace 9 at the portion where the pair of flat plate portions 53, 54 are connected to the engaging portion 52. The constricted portion 55 is smaller than the constricted portion 55. A second hole 62 through which the connecting bolt 38 is inserted is formed in one flat plate portion 53 of the pair of flat plate portions 53, 54, and a third hole through which the connecting bolt 38 is inserted in the other flat plate portion 54. 63 is formed. In the present embodiment, a female screw part 57 that is screwed into the connection bolt 38 with respect to the third hole 63 is formed. In the example of FIG. 23, the case where the female screw part 57 is comprised with the nut 58 previously fixed to the other flat plate part 54 is illustrated. However, the present invention is not limited to this. For example, by performing burring on the hole formed in the other flat plate portion 54, a wall portion raised from the surface of the flat plate portion 54 is integrally formed around the hole, and the wall The female screw portion 57 may be provided by forming a female screw inside the portion. Further, inside the C-shaped engaging portion 52, similarly to the bent portion 11, an engaging protrusion 12 that engages with a screw groove formed on the outer peripheral surface of the brace 9 is provided.

  Such brace support fittings 3a and 3b are attached to the brace 9 in advance. FIG. 24 is a diagram illustrating an operation process when the brace 9 is attached. First, as shown in FIG. 24 (a), the brace support fittings 3 a and 3 b have a pair of flat plate portions 53 and 54 extending from the C-shaped engaging portion 52 so that the tips of the brace support members 3 a and 3 b are wider than the diameter of the brace 9. We are open. Therefore, the operator pushes the brace 9 toward the engagement portion 52 from the gap between the pair of flat plate portions 53 and 54, further expands the pair of flat plate portions 53 and 54, and engages the engagement portion 52 rather than the constricted portion 55. As shown in FIG. 24 (b), the brace 9 is temporarily fixed inside the engaging portion 52 by allowing the brace 9 to enter inside. That is, when the brace 9 is pushed toward the engaging portion 52, the pair of flat plate portions 53 and 54 further widen the mutual space to guide the brace 9 to the engaging portion 52, and the brace 9 is engaged with the engaging portion 52. Once inside, the distance between each other is reduced again and the original state is restored. When the brace 9 is accommodated inside the engagement portion 52, the engagement protrusion 12 is engaged with the screw groove formed on the outer peripheral surface of the brace 9, so that the brace support fitting 3a, 3b is temporarily stopped.

  Next, the operator fixes the fixture 2 to the suspension bolt 8. However, this operation may be performed in advance before the brace support fittings 3a and 3b are attached to predetermined positions of the brace 9. Then, as shown in FIG. 24 (c), the operator passes the connecting bolt 38 through the first hole 61 from the outside of the fixing bracket 2 fixed to the suspension bolt 8, and the tip of the connecting bolt 38 is connected to the brace support fitting 3a. , 3b through the second hole 62 provided in the flat plate portion 53, and then screwed into the third hole 63 in which the female screw portion 57 of the flat plate portion 54 is formed, thereby supporting the brace support fittings 3a, 3b. Is temporarily fixed to the fixing bracket 2. At this time, the posture of the brace support fittings 3a and 3b is a posture corresponding to the arrangement angle of the brace 9. Then, the operator attaches the tool tip 5 of the electric tool to the head of the connecting bolt 38 as shown in FIG. 20C with the brace support fittings 3a and 3b temporarily fixed to the fixing fitting 2. The connecting bolt 38 is tightened by operating. That is, by fastening and fixing the connecting bolt 38 to the female screw portion 57 using an electric tool, the interval between the pair of flat plate portions 53 and 54 is reduced, and the engaging portion 52 tightens the brace 9 accordingly. The brace 9 is pressed and fixed to the engaging portion 52. The pair of flat plate portions 53 and 54 are also fixed to the fixing bracket 2 by fastening the connecting bolt 38. Therefore, the brace 9 is firmly fixed to the suspension bolt 8 by the brace coupling fitting 1b. When the operator performs the fastening work of the connecting bolt 38 using the electric tool, the work can be performed from the outside of the brace connecting metal fitting 1b, so that the work is easy and the work efficiency is excellent.

  FIG. 25 is a side view showing an example of a state in which the brace 9 is attached to the brace coupling fitting 1b. FIG. 25A shows a state in which the brace connecting bracket 1b is attached to the upper portion of the suspension bolt 8, and the brace support brackets 3a and 3b support the brace 9 obliquely downward. On the other hand, FIG. 25B shows a state in which the brace coupling fitting 1b is attached to the lower part of the suspension bolt 8 and the brace support fittings 3a and 3b support the brace 9 obliquely upward. In other words, the brace coupling fitting 1b of the present embodiment can hold the brace 9 at an arbitrary angle because the brace support fittings 3a and 3b can be fixed to the fixing fitting 2 in a posture corresponding to the arrangement angle of the brace 9. It is possible. In addition, the brace coupling bracket 1b of the present embodiment is provided with a pair of support portions 5a and 5b on the left and right sides of the fixing bracket 2, and the pair of brace support brackets 3a and 3b are attached to the support portions 5a and 5b. Therefore, the two braces 9 can be held in a state where they are arranged at different angles.

  As described above, in the brace connecting bracket 1b of the present embodiment, the pair of brace support brackets 3a and 3b are attached to the fixing bracket 2 fixed to the suspension bolt 8, and each of the pair of brace support brackets 3 and 3b is oblique. It is the structure which clamps the edge part of the brace 9 arrange | positioned in a direction. That is, the support member 51 constituting the brace support fittings 3a and 3b can be held in a state where the brace 9 is sandwiched by being fixed at one point by the connecting bolt 38.

  Moreover, the brace connection metal fitting 1b of this embodiment is the structure which connects the brace 9 to the suspension bolt 8 using a total of four bolts similarly to 2nd Embodiment, All these four bolts are used for an electric tool. Can be fastened using. That is, if the brace coupling fitting 1b of the present embodiment is used, there is no need to attach a nut to the brace 9, and therefore it is necessary to perform an operation of tightening the nut attached to the brace 9 using a manual tool such as a conventional spanner. There is no. Moreover, since the brace connection metal fitting 1a of this embodiment has few bolts compared with 1st Embodiment, the frequency | count of fastening work using an electric tool decreases. Therefore, the working efficiency when connecting the brace 9 to the suspension bolt 8 is further improved than in the first embodiment.

  In addition, as in the first embodiment, the brace coupling fitting 1b of the present embodiment is configured such that when the bolt is fastened and fixed using an electric tool, the tool tip of the electric tool is placed outside the brace coupling fitting 1a (the first fitting). 10 can be attached to the head of the bolt from the side where the second metal fitting 20 is not joined. Therefore, compared with the case where an electric tool must be used inside the brace coupling fitting 1b, the work is easier to perform, and the work efficiency is improved in this respect as well.

  In this embodiment, as described in the first embodiment, the first metal fitting 10 and the second metal fitting 20 of the fixing metal fitting 2 may be applied in a state where they are assembled in advance. That is, by separating the first metal fitting 10 and the second metal fitting 20 with the pair of bolts 18 loosened, the insertion space 7 of the suspension bolt 8 is widened, and the suspension bolt 8 is inserted into the insertion space 7 to brace it. You may make it arrange | position the coupling metal 1 to the attachment position of the suspension bolt 8. FIG. Also in this embodiment, the engaging protrusion 12 is configured as the protrusion 12a as described in the first embodiment, and the first metal fitting 10 and the second metal fitting 20 are previously bundled using the bundling member 40b. You may do it.

(Fourth embodiment)
FIG. 26 is an external perspective view of a brace connection fitting 1c according to a fourth embodiment of the present invention, and FIG. 27 is an exploded perspective view showing components of the brace connection fitting 1c. As shown in FIGS. 26 and 27, the brace coupling metal 1c includes a fixing metal 2 fixed to the suspension bolt 8 and a pair of braces connected to both sides of the fixing metal 2 as in the above-described embodiments. Support brackets 3a and 3b are provided, and each of the pair of brace support brackets 3a and 3b is configured to support an end portion of a bolt-shaped brace 9 disposed in an oblique direction. The brace coupling bracket 1c is different from the third embodiment in that a female screw portion 57 that is screwed into the coupling bolt 38 is formed in the first hole 61 of the first bracket 10, and the head of the coupling bolt 38 is formed by the coupling bolt 38. The brace support metal fittings 3a and 3b are sandwiched between the portion and the support portions 5a and 5b of the first metal fitting 10. In addition, although the case where the female screw part 57 is comprised with the nut 15 previously fixed to the fixing metal fitting 2 is illustrated, it is not restricted to this, The wall which raised the circumference | surroundings of the 1st hole 61 by the burring process The female screw part 57 may be provided by forming a female screw part inside the wall part.

  As in the third embodiment, the brace support fittings 3a and 3b are attached to the brace 9 in advance. Thereafter, the brace support fittings 3 a and 3 b attached to the brace 9 are attached to the fixture 2 fixed to the suspension bolt 8. FIG. 28 is a diagram illustrating a work process when the brace support brackets 3 a and 3 b are attached to the fixing bracket 2. As shown in FIG. 28, the operator first passes the connecting bolt 38 through the second hole 62 and the third hole 63 of the brace support fittings 3a and 3b from the outside of the fixing fitting 2 fixed to the suspension bolt 8, The brace support fittings 3 a and 3 b are temporarily fixed to the fixing fitting 2 by screwing and inserting the tip of the bolt 38 into the female screw portion 57 of the first hole 61 formed in the fixing fitting 2. At this time, the posture of the brace support fittings 3a and 3b is a posture corresponding to the arrangement angle of the brace 9. Then, with the brace support brackets 3a and 3b temporarily fixed to the fixing bracket 2, the operator attaches the tool tip 5 of the power tool to the head of the connecting bolt 38 and operates the power tool as shown in FIG. As a result, the connecting bolt 38 is tightened. That is, by fastening and fixing the connecting bolt 38 to the female screw portion 57 using an electric tool, the interval between the pair of flat plate portions 53 and 54 is reduced, and the engaging portion 52 tightens the brace 9 accordingly. The brace 9 is pressed and fixed to the engaging portion 52. The pair of flat plate portions 53 and 54 are also fixed to the fixing bracket 2 by fastening the connecting bolt 38. Therefore, the brace 9 is firmly fixed to the suspension bolt 8 by the brace connecting bracket 1c. When the operator performs the fastening work of the connecting bolt 38 using the electric tool, the work can be performed from the outside of the brace connecting metal fitting 1c, so that the work is easy and the work efficiency is excellent. Further, in the present embodiment, when the operator performs an operation of fastening the connecting bolt 38, the tip of the connecting bolt 38 can be inserted into the female screw portion 57 fixed to the suspension bolt 8, and therefore, the third embodiment. There is an advantage that the fastening operation of the connecting bolt 38 is easier than in the case of the embodiment.

  Other points are the same as in the third embodiment. Therefore, also in 4th Embodiment, the effect similar to what was demonstrated in the above-mentioned 3rd Embodiment is acquired.

(Fifth embodiment)
29 and 30 are views showing a brace coupling metal fitting 1d according to the fifth embodiment, FIG. 29 is a perspective view thereof, and FIG. 30 is a plan view thereof. As shown in FIGS. 29 and 30, the brace coupling metal 1 d includes a fixing metal 2 fixed to the suspension bolt 8 and a pair connected to both sides of the fixing metal 2, similarly to the brace coupling metal 1 described above. The brace support brackets 3a and 3b are provided, and each of the pair of brace support brackets 3a and 3b sandwiches and supports the outer peripheral surface of a bolt-shaped brace 9 disposed in an oblique direction.

  In the brace coupling bracket 1d, the fixing bracket 2 has the same configuration as the brace coupling bracket 1 described in the first embodiment. On the other hand, the pair of brace support brackets 3a and 3b provided at both ends of the fixing bracket 2 has a configuration different from that of the brace connection bracket 1 described in the above embodiments.

  Each of the brace support fittings 3a and 3b is constituted by a single substantially U-shaped support member 70 formed by bending a metal plate. The support member 70 is provided with a substantially C-shaped engagement portion 71 that is engaged with the outer peripheral surface of the brace 9, and both ends of the engagement portion 71 extended so as to form a predetermined angle with each other. And a pair of flat plate portions 72, 73. As shown in FIG. 30, an engagement protrusion 12 that engages with a screw groove formed on the outer peripheral surface of the brace 9 is provided inside the engagement portion 71. For example, as shown in FIG. 29, the engagement protrusion 12 presses the outer surface of the engagement portion 71 in a lateral line shape to form a recess 76, and forms a lateral protrusion inside the recess 76. It is constituted by doing. In addition, a hole for inserting the connecting bolt 38 is formed on the distal end side of the pair of flat plate portions 72 and 73. Furthermore, the pair of flat plate portions 72 and 73 is provided with a convex portion 74 protruding inward at a position near the engaging portion 71 as shown in FIG. The convex portion 74 is formed in the vertical direction at a position near the engaging portion 71. Such a convex part 74 is formed by, for example, pressing the outer surfaces of the flat plate parts 72 and 73 to form the concave part 75 and bulging the inner side of the flat plate parts 72 and 73 corresponding to the concave part 75. Is done.

  In the brace support fittings 3 a and 3 b as described above, the connection bolt 38 is inserted into the holes provided in the pair of flat plate portions 72 and 73, and the tip of the connection bolt 38 is inserted into the female screw portion 14 of the fixing bracket 2. On the other hand, it is attached in advance to the first metal fitting 10 of the fixing metal fitting 2 by being mounted in a loosely screwed state. That is, the connecting bolt 38 is inserted into the holes of the pair of flat plate portions 72 and 73 from the outside of the brace connecting bracket 1d, and the tip thereof is mounted in a state of being loosely screwed into the female screw portion 14 of the fixing bracket 2. At this time, the connecting bolt 38 is mounted so as not to apply a pressing force to the pair of flat plate portions 72 and 73 so that the spread angle of the pair of flat plate portions 72 and 73 is not reduced.

  FIG. 30 shows a state before construction in which each member of the brace coupling fitting 1d is assembled as described above. The pair of bolts 18 for assembling the first metal fitting 10 and the second metal fitting 20 of the fixing metal fitting 2 are in a state where their tips are loosely engaged with the female screw portion 24. Therefore, in the state before construction, the distance between the first metal fitting 10 and the second metal fitting 20 can be increased within a range allowed by the bolt 18. Therefore, when the interval between the first metal fitting 10 and the second metal fitting 20 is increased, the insertion space 7 into which the suspension bolt 8 can be inserted between the bent portion 11 of the first metal fitting 10 and the curved portion 21 of the second metal fitting 20. Is formed.

  Further, the connecting bolt 38 that connects the brace support fittings 3a and 3b to the fixing fitting 2 is in a state where the tip thereof is loosely screwed into the female screw portion 14. Therefore, in a state before construction, the pair of flat plate portions 72 and 73 of the support member 70 are in a state in which their tips are expanded, and the inside of the portion surrounded by the engagement portion 71 and the pair of flat plate portions 72 and 73. An insertion portion 6 through which the brace 9 can be inserted is formed. That is, the brace support fittings 3a and 3b have the insertion portion 6 through which the brace 9 can be inserted inside the support member 70 before the connecting bolt 38 is tightened.

  The brace coupling fitting 1d as described above can be constructed with each component being assembled in advance. That is, when attaching the brace connecting bracket 1d to the suspension bolt 8, the insertion space 7 of the suspension bolt 8 is widened by separating the first bracket 10 and the second bracket 20 with the pair of bolts 18 loosened. Then, the suspension bolt 8 is inserted into the insertion space 7 so that the brace coupling fitting 1 is arranged at the attachment position of the suspension bolt 8 to be in a temporarily fixed state. The fixing bracket 2 can be fixed to the suspension bolt 8 by tightening the pair of bolts 18 using an electric tool. Thereafter, the brace 9 is connected to the suspension bolt 8 by attaching the brace 9 to the pair of brace support fittings 3a and 3b.

  FIG. 31 is a diagram illustrating an example of an operation of attaching the brace 9 to the brace support fittings 3a and 3b. First, as shown in FIG. 31A, before tightening the connecting bolt 38, the brace 9 is inserted into the insertion portion 6 provided inside the support member 70 of the brace support fittings 3a and 3b. When the support member 70 of the brace support fittings 3a and 3b is loosely attached to the fixing fitting 2 by the connection bolt 38, the support member 70 is not fixed and can be rotated about the connection bolt 38 as an axis. Therefore, the operator rotates the support member 70 according to the arrangement angle of the brace 9. Then, the operator inserts the brace 9 into the insertion portion 6 formed inside the support member 70 from the tip, and accommodates the brace 9 inside the support member 70. In addition, after inserting the brace 9 inside the support member 70, the operator may be in a temporarily fixed state by tightening the head of the connecting bolt 38 with a fingertip.

  Subsequently, the worker fixes the brace support fittings 3a and 3b to the state where the brace 9 is sandwiched as shown in FIG. And fix. In this process, the operator attaches the tool tip of the power tool to the head of the connection bolt 38 and operates the power tool to tighten the connection bolt 38. That is, the connecting bolt 38 is fastened to the female screw portion 14 using an electric tool, so that the support member 70 is pressed and fixed in a state where the brace 9 is sandwiched at the engaging portion 71. At this time, the brace 9 is disposed between the engaging portion 71 and the convex portion 74 inside the support member 70. When the connecting bolt 38 is tightened by the electric tool in this state, the expansion angle of the pair of flat plate portions 72 and 73 is gradually reduced. And the convex part 74 formed in the flat plate parts 72 and 73 presses the brace 9 toward the engaging part 71, and makes the brace 9 contact | adhere to the engaging part 71 closely. As a result, the engagement protrusion 12 provided inside the engagement portion 71 engages with a screw groove formed on the outer peripheral surface of the brace 9. The brace 9 is firmly fixed by the support member 70.

  Also in this embodiment, the engaging protrusion 12 is configured as the protrusion 12a as described in the first embodiment, and the first metal fitting 10 and the second metal fitting 20 are previously bundled using the bundling member 40b. You may make it leave. In this case, construction efficiency is further improved.

(Other embodiments)
FIG. 32 is a view showing still another brace connecting bracket 1e, 1f, FIG. 32 (a) is a plan view of the brace connecting bracket 1e, and FIG. 32 (b) is a plan view of the brace connecting bracket 1f. Yes. Each of these brace connecting brackets 1e and 1f has a structure in which the fixing bracket 2 is different from the brace connecting bracket 1 described in the first embodiment.

  First, in the fixing bracket 2 of the brace coupling bracket 1e shown in FIG. 32A, the first bracket 10 is constituted by a flat plate member, and is bent in an arc shape in order to be engaged with the outer peripheral surface of the suspension bolt 8. A bent portion 11 is provided, and a pair of bolts 18 are attached to both ends of the bent portion 11. On the other hand, the second metal fitting 20 is provided with a curved portion 21 which is curved in an arc shape so as to be engaged with the outer peripheral surface of the suspension bolt 8 at the center of the flat plate portion arranged to face the first metal fitting 10. The both ends of the flat plate portion are bent at about 45 degrees to constitute an extended portion. On the flat plate portions on both sides of the bending portion 21, nuts 25 having female screw portions that are screwed with the tips of the bolts 18 are provided. The fixing bracket 2 shown in FIG. 32A is a member that is attached so as to sandwich the suspension bolt 8, similarly to the brace coupling bracket 1 described in the first embodiment. An insertion space 7 into which a suspension bolt can be inserted is provided between 20 and the insertion space 7 is reduced by tightening a bolt 18 attached to the pair of metal fittings 10, 20. This is a structure that is clamped to 8. Therefore, this brace coupling fitting 1e can be constructed in the same manner as in the first embodiment. FIG. 32 (a) illustrates a state in which brace support fittings 3a and 3b similar to those of the first embodiment are attached to both ends of the fixing fitting 2. However, the present invention is not limited to this. The brace support fittings 3a, 3b similar to the brace connection fittings 1a, 1b, 1c, 1d described in the second to fifth embodiments may be attached. Also, in the brace connecting metal fitting 1e shown in FIG. 32A, the engaging protrusion 12 formed on the first metal fitting 10 or the second metal fitting 20 is configured as the protrusion 12a as described in the first embodiment, and the binding member You may make it bind the 1st metal fitting 10 and the 2nd metal fitting 20 beforehand using 40b. In this case, construction efficiency is further improved.

  Next, in the fixing bracket 2 of the brace connecting bracket 1f shown in FIG. 32 (b), one ends of the first bracket 10 and the second bracket 20 are rotatably connected to each other by a hinge structure (hinge structure) 81. The other ends of the first metal fitting 10 and the second metal fitting 20 are connected by bolts 18 and nuts 25, and the respective tips of the first metal fitting 10 and the second metal fitting 20 are bent outwardly by about 45 degrees and extended. It constitutes an extended part. And a pair of brace support metal fittings 3a and 3b are connected to each extension part of the 1st metal fitting 10 and the 2nd metal fitting 20 via connecting bolt 38, and are provided so that it may form a right angle mutually. The fixing bracket 2 shown in FIG. 32 (b) is a member that is attached so as to sandwich the suspension bolt 8, similarly to the brace coupling bracket 1 described in the first embodiment. An insertion space 7 into which a suspension bolt can be inserted is provided between 20 and the insertion space 7 is reduced by tightening a bolt 18 attached to the pair of metal fittings 10, 20. This is a structure that is clamped to 8. Therefore, this brace coupling fitting 1f can also be constructed in the same manner as in the first embodiment. In particular, since the brace coupling metal 1f has only one bolt 18 for fastening the first metal fitting 10 and the second metal fitting 20, the work of tightening the bolt 18 using an electric tool can be efficiently performed. There is an advantage that the working efficiency is further improved. FIG. 32B also illustrates a state in which the same brace support fittings 3a and 3b as those of the first embodiment are attached to both ends of the fixing fitting 2. However, the present invention is not limited to this. The brace support fittings 3a, 3b similar to the brace connection fittings 1a, 1b, 1c, 1d described in the second to fifth embodiments may be attached. Also, in the brace coupling metal fitting 1f shown in FIG. 32 (b), the engaging protrusion 12 formed on the first metal fitting 10 or the second metal fitting 20 is configured as the protrusion 12a as described in the first embodiment, and the binding member You may make it bind the 1st metal fitting 10 and the 2nd metal fitting 20 beforehand using 40b.

(Modification)
As mentioned above, although one embodiment concerning the present invention was described, the present invention is not limited to what was explained in the above-mentioned embodiment, and various modifications are applicable.

  For example, in the above-described embodiment, the case where the fixing metal fitting 2 is configured by two members of the first metal fitting 10 and the second metal fitting 20 is illustrated. However, it is not restricted to this, For example, the fixing metal fitting 2 may act the thing similar to what was disclosed by patent document 1. FIG. Even in this case, by using the brace support fittings 3a and 3b described in the above embodiments, it is not necessary to attach a nut to the brace 9 when the brace 9 is attached, so that work efficiency is improved.

  Moreover, in the said embodiment, the rubber band, the clip, etc. were illustrated as the binding member 40b which binds the 1st metal fitting 10 and the 2nd metal fitting 20. As shown in FIG. However, the present invention is not limited to this. For example, by providing a magnet in one of the first metal fitting 10 and the second metal fitting 20 and attracting the other by the magnetic force of the magnet, the first metal fitting 10 and the second metal fitting 20 It is also possible to bind them together. In this case, the magnet provided in any one of the 1st metal fitting 10 and the 2nd metal fitting 20 functions as the binding member 40b.

1, 1a, 1b, 1c, 1d, 1e Brace coupling bracket 2 Fixing bracket 3a, 3b Brace support bracket 4 Fixed portion 5a, 5b Support portion 6 Insertion portion 7 Insertion space 10 First bracket 12a Protrusion portion 20 Second bracket 14, 57 Female thread portion 31 First member 31a, 43, 52 Engaging portion 31b First flat plate portion 31c Second flat plate portion 34a, 34b Bolt insertion hole 32 Second member 35a First hole 35b Second hole 38 Connection bolt 39 Fastening bolt 40b Bundling member 61 First hole 62 Second hole 63 Third hole

Claims (9)

A fixing bracket attached to sandwich the suspension bolt, and a pair of brace support fittings attached to both ends of the fixing bracket via a connecting bolt ,
The fixing metal fitting has an insertion space in which the suspension bolt can be inserted between a first L-shaped metal fitting and a second metal fitting arranged inside the first metal fitting so as to face the first metal fitting. The first metal fitting is provided with a long hole through which the fastening bolt is inserted, and the second metal fitting is provided with a female screw portion that is screwed with the fastening bolt,
When the fastening bolt inserted through the elongated hole is loosely attached to the female screw portion, the insertion space can be enlarged, and the fastening bolt inserted through the elongated hole is The first metal fitting and the second metal fitting are clamped and fixed to the suspension bolt by tightening the female screw portion to reduce the insertion space, and the pair of brace support metal fittings are connected to the connection bolt. A brace coupling fitting having an insertion portion through which a brace can be inserted in a state before being tightened, and clamping and fixing the brace inserted into the insertion portion by reducing the insertion portion by tightening the connection bolt.   The brace coupling bracket according to claim 1, wherein the fixing bracket includes a biasing unit that biases the insertion bracket in a direction in which the insertion space of the pair of brackets is reduced. A fixing bracket that is attached so as to sandwich the suspension bolt; and a pair of brace support brackets that are attached to both ends of the fixing bracket via connecting bolts, and the fixing bracket is disposed between a pair of opposing brackets. The insertion bolt has a insertion space into which the suspension bolt can be inserted, and by tightening a fastening bolt attached to the pair of metal fittings, the insertion space is reduced and the pair of metal fittings are clamped and fixed to the suspension bolt. And the pair of brace support brackets have an insertion portion through which the brace can be inserted before the connection bolt is tightened, and the insertion portion is reduced by tightening the connection bolt. In the brace coupling bracket that clamps and fixes the brace inserted in
The fixing bracket, on both sides of the insertion space formed by the pair of brackets, features and be Lube race connecting fitting further comprising biasing means for biasing in a direction to shrink the insertion space. A fixing bracket that is attached so as to sandwich the suspension bolt; and a pair of brace support brackets that are attached to both ends of the fixing bracket via connecting bolts, and the fixing bracket is disposed between a pair of opposing brackets. The insertion bolt has a insertion space into which the suspension bolt can be inserted, and by tightening a fastening bolt attached to the pair of metal fittings, the insertion space is reduced and the pair of metal fittings are clamped and fixed to the suspension bolt. And the pair of brace support brackets have an insertion portion through which the brace can be inserted before the connection bolt is tightened, and the insertion portion is reduced by tightening the connection bolt. In the brace coupling bracket that clamps and fixes the brace inserted in
A protrusion that protrudes toward the inside of the insertion space is provided on at least one of the pair of metal fittings, and the tip of the protrusion is configured to engage with the outer peripheral surface of the suspension bolt.
The tip of the protrusion, the hanger rod features and be Lube race connecting fitting that axial length is greater than the thread pitch of the hanging bolts.   The brace fitting according to claim 4, wherein the protrusion has a hollow inside. The brace coupling bracket according to claim 4 , wherein the fixing bracket further includes a biasing unit that biases the pair of brackets in a direction to reduce the insertion space of the pair of brackets. A brace coupling fitting fixed to the outer peripheral surface of the suspension bolt and connecting the suspension bolt and the brace,
A fixing portion fixed to the suspension bolt, and a pair of flat plate-like support portions that are perpendicular to the axial direction of the suspension bolt and extend from the fixing portion so as to be perpendicular to each other, A fixing bracket in which a female screw portion for mounting a connection bolt is formed on each of the pair of support portions;
A brace support fitting for sandwiching and supporting the brace between the first plate member and the second plate member ;
With
The brace support bracket is configured such that the connection bolt is attached to one end side of the first plate member and the second plate member, and a fastening bolt is fastened to the other end side, whereby the first plate member and the second plate member A brace coupling fitting, wherein the second plate member is in close contact with the brace and presses and fixes the brace. A brace coupling fitting fixed to the outer peripheral surface of the suspension bolt and connecting the suspension bolt and the brace,
A fixing portion fixed to the suspension bolt, and a pair of flat plate-like support portions that are perpendicular to the axial direction of the suspension bolt and extend from the fixing portion so as to be perpendicular to each other, A fixing bracket in which a female screw portion for mounting a connection bolt is formed on each of the pair of support portions;
A substantially semi-cylindrical engaging portion that engages with an outer peripheral surface of the bolt-shaped brace; and a flat plate portion that extends to one side of the engaging portion, and a bolt insertion hole is formed in the flat plate portion. The formed brace support bracket,
With
The brace support fitting has the brace inside the engagement portion when the connection bolt is inserted into the bolt insertion hole and the connection bolt is loosely attached to the female screw portion. The coupling bolt is fastened and fixed to the female screw portion in a state where the brace is accommodated inside the engagement portion, so that the engagement portion comes into close contact with the brace and is In the brace connecting bracket that presses and fixes the brace,
The brace support bracket is
The engaging portion is provided at the center, and a first flat plate portion extending to one side of the engaging portion and a second flat plate portion extending to the other side of the engaging portion are provided. A first member in which the bolt insertion hole is formed in each of the first flat plate portion and the second flat plate portion;
A flat plate-like member disposed to face the first member, wherein a first hole is formed at a position aligned with the bolt insertion hole formed in the first flat plate portion, and the second A second member in which a second hole is formed at a position aligned with the bolt insertion hole formed in the flat plate portion, and a female screw is formed in the second hole;
With
The connecting bolt is inserted into the bolt insertion hole formed in the first flat plate portion of the first member and the first hole of the second member, and the connecting bolt is connected to the female screw portion. The brace can be accommodated inside the engaging portion by widening the space between the first member and the second member when loosely attached, and the brace can be accommodated inside the engaging portion. And the fastening bolt inserted into the bolt insertion hole formed in the second flat plate portion of the first member is fixed to the female screw portion. By being fastened and fixed to the female screw of the second hole, the engaging portion is in close contact with the brace and the brace is fixed between the first member and the second member. The brace coupling metal fitting according to claim 5, wherein: A fixing bracket that is attached so as to sandwich the suspension bolt; and a pair of brace support brackets that are attached to both ends of the fixing bracket via connecting bolts, and the fixing bracket is disposed between a pair of opposing brackets. The insertion bolt has a insertion space into which the suspension bolt can be inserted, and by tightening a fastening bolt attached to the pair of metal fittings, the insertion space is reduced and the pair of metal fittings are clamped and fixed to the suspension bolt. In addition, the pair of brace support fittings includes a first plate member and a second plate member, the connection bolt is attached to one end of the first plate member and the second plate member, and the other end is A bolt different from the connecting bolt is mounted, and both ends are tightened in a state where a brace is accommodated between the first plate member and the second plate member, Brace connecting fitting to fix clipping the serial brace.

Images