JP2002146919A - Strap for turnbuckle for construction and its manufacturing method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a strap for a turnbuckle for construction having excellent workability on installation at a site at a low cost and its manufacturing method. SOLUTION: The strap (1) is composed of one pipe material (4) in which one end section has a tubular section (2) and the other section is formed in a flatly crushed tabular section (3). A screw (5) is formed to the inner circumference of the tubular section (2), and the tubular section is screwed at the end section of a screw bolt. The tabular section (3) is extended in the same direction as the axis of the tubular section (2) while having a bolt inserting hole (7) penetrated in the thickness direction of the tabular section (3), and a bolt and a nut can be fixed onto a gusset plate for a building. In the turnbuckle in which the straps (1) are screwed at both ends of the screw bolt, length can be adjusted by relatively rotating the straps (1) to the screw bolt and changing the length of screwing sections.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wing plate used for fixing one end of a screw bolt to a building in a turnbuckle used for building a building or the like.

[0002]

2. Description of the Related Art Heretofore, as a turnbuckle used for straddling a building, there has been known a turnbuckle in which a pair of screw bolts are screwed to both ends of a cylindrical turnbuckle body. And, as a screw bolt, a blade bolt having a blade (plate material) fixed to one end by welding or the like is often used.

According to the above turnbuckle, the vane plate can be fastened and fixed to a gusset plate provided on a building with bolts and nuts, and the other end of the vane plate bolt can be screwed onto the turnbuckle body to be installed. Further, the turnbuckle length can be adjusted according to the installation conditions by changing the length of the screwed portion by relatively rotating the turnbuckle body and the blade bolt.

[0004]

However, since the installation conditions of the turnbuckle differ from one building site to another, the turnbuckle using the above-mentioned conventional vane plate bolt has a too small adjustment range of the turnbuckle length, which is not sufficient for the installation condition. Could not be adapted. In such a case, it is necessary to select screw bolts suitable for the installation conditions on site, and then attach the blade plate to the screw bolts on site. In addition, the screw bolt must be cut in some cases to meet the installation conditions, and there is a problem in cost and workability.

[0005] In order to improve the installation workability on site,
A method is also conceivable in which the blade plate can be screwed to the screw bolt. In that case, the attachment of the blade plate becomes easy, and the screwed portion of the blade plate and the screw bolt also becomes the adjustment range of the turnbuckle length, and the installation range of the turnbuckle can be expanded, but compared with the conventional one that is fixed by welding etc. In comparison, the shape of the blade is complicated, and the manufacturing method such as forging is limited. Thus, there is a problem that the number of manufacturing steps increases and the cost increases.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a turnbuckle blade for architectural use which is inexpensive and has excellent workability in the field, and a method of manufacturing the same.

[0007]

According to the first aspect of the present invention, there is provided a first construction turnbuckle having a tubular member having a tubular portion at one end and a flat portion formed by crushing the other portion flat. A screw is formed on the inner periphery of the tubular portion, and the plate-like portion extends in the same direction as the axis of the tubular portion, and has a bolt insertion hole penetrating through the thickness direction of the plate-like portion. It is characterized by.

[0008] Since this blade plate utilizes the shape of the tube material, it can be manufactured without significant processing of the tube material. Therefore, the number of manufacturing steps is reduced, and the cost can be reduced.

The tubular portion may be a reduced diameter portion of the outer diameter of the tubular material. In this case, an appropriate diameter can be obtained by drawing, while maintaining the integrity and the strength.

The second construction turnbuckle blade according to the present invention comprises a pair of plate members having a gutter-like curved portion at one end, and a tubular portion formed by combining the curved portions so that their concave portions face each other. And a plate-like portion formed by combining flat portions of the pair of plate members into a plate-like shape. A ring is inserted into an outer periphery of the tubular portion, and a screw is formed in an inner periphery of the tubular portion. Is characterized by having a bolt insertion hole extending in the same direction as the axis of the tubular portion and penetrating in the thickness direction of the plate-shaped portion.

This feather plate utilizes the shape of the plate material used as the material, and the pair of plate materials is easily and firmly joined by the ring, so that the plate material is manufactured by a simple process without any significant processing. can do. Therefore, the number of manufacturing steps can be reduced, and the cost can be kept low.

In the first or second architectural turnbuckle blade plate, the plate-shaped portion penetrates in the thickness direction of the plate-shaped portion, one end continues to the opening of the tubular portion, and the screw valley is formed. It may have a long hole having a width larger than the diameter and smaller than the width of the plate-shaped portion. In this case, when the screw on the inner circumference of the tubular portion is screwed onto the screw bolt, and the blade plate is relatively rotated with respect to the screw bolt, the tip of the screw bolt protruding from the tubular portion is rotated while escaping along the long hole. Therefore, the bolt in / out stroke can be increased. Therefore, the adjustment range of the turnbuckle length becomes large, and the installable range of the turnbuckle is expanded.

A third embodiment of the present invention provides a turnbuckle feather plate comprising a pair of plate members having a gutter-like curved portion at one end, and combining the curved portions so that their concave portions face each other. And a holding portion configured by arranging flat portions of the pair of plate members facing each other at a predetermined interval, wherein the tubular portion has a ring fitted on the outer periphery, a screw formed on the inner periphery, and The portion extends in the same direction as the axis of the tubular portion, and has a bolt insertion hole that penetrates through the thickness direction of the flat portion of the plate material.

This feather plate utilizes the shape of the plate material to be used as the material, and the pair of plate materials is easily and firmly joined by the ring, so that the plate material is manufactured by a simple process without any significant processing. can do. Therefore, the number of manufacturing steps can be reduced, and the cost can be reduced. In addition, since the gusset plate can be sandwiched between the holding portions and the gusset plate and the turnbuckle can be fixed in alignment with each other, the force applied to the side (the direction in which the feather plate is peeled off from the gusset plate) is reduced,
The fixing strength can be increased.

[0015] The holding portion penetrates the thickness direction of the flat portion of the plate material, and has one end continuing to the opening of the tubular portion, and an elongated hole having a width larger than the root diameter of the screw and smaller than the width of the holding portion. May be provided. In this case, when the screw on the inner circumference of the tubular portion is screwed onto the screw bolt, and the blade plate is relatively rotated with respect to the screw bolt, the tip of the screw bolt protruding from the tubular portion is rotated while escaping along the long hole. Therefore, the bolt in / out stroke can be increased. Therefore, the adjustment range of the turnbuckle length becomes large, and the installable range of the turnbuckle is expanded.

[0016] The distance between the flat portions of the pair of plate members constituting the holding portion may be adapted to the thickness of the gusset plate. In this case, the holding portion is brought into close contact with the gusset plate to eliminate the deviation of the axis of the holding portion and the gusset plate,
The fixing strength can be further increased.

The first method of manufacturing a turnplate for architectural turnbuckles according to the present invention comprises a first step of narrowing the outer diameter of one end of the pipe material, and another step of removing the portion narrowed in the first step. A second step of flattening and crushing the portion into a plate shape, and forming a screw on the inner periphery of the squeezed portion in which one is a third process and the other is a fourth process. Drilling the plate-shaped partial bolt insertion hole.

According to this manufacturing method, the tube material can be processed in fewer steps and the cost can be reduced as compared with a conventional manufacturing method such as forging which requires steps such as melting and molding of the material.

The first step of flattening and crushing the tubular material into a plate while leaving a tubular portion at one end of the tubular material.
The step of narrowing the outer diameter of one end of the tube material may be a second step of narrowing the outer diameter of the tubular portion left in the first step. In this case, the tube can be manufactured in response to a situation in which the tube must first be crushed flat due to a problem of the manufacturing facility.

The step of drilling the bolt insertion hole may include a step of drilling a slot on the same axis as the narrowed portion. In this case, a blade plate having a large bolt in / out stroke can be manufactured by a simple process.

According to a second method of manufacturing a turnplate for an architectural turnbuckle according to the present invention, there is provided a first step of bending one end of a plate material into a gutter shape, and a plate material having a curved portion formed in the first step. And a second step in which a ring is inserted around the outer periphery of the combined curved portion, and the pair of plate members is integrally joined, Forming a screw on the inner periphery of the squeezed portion, the other being a fourth process, and drilling the plate-shaped partial bolt insertion hole. .

According to this manufacturing method, a plate material can be processed in fewer steps and costs can be reduced as compared with a conventional manufacturing method such as forging which requires steps such as melting and molding of a material.

The step of drilling the bolt insertion hole may include a step of drilling a slot on the same axis as the narrowed portion. In this case, a blade plate having a large bolt in / out stroke can be manufactured by a simple process.

[0024]

1 to 3 show a first embodiment of the present invention.
Of the buckle for architectural buckles is shown. FIG. 1 is a perspective view of the feather board. FIG. 2 is a diagram showing a use state of a building turnbuckle using the feather board.
FIG. 3 is an enlarged plan view showing a use state of the architectural turnbuckle using the feather board.

As shown in FIG. 2 and FIG.
Is for fixing the end of the architectural turnbuckle 31 used for bracing the building 35 to the building 35.
The architectural turnbuckle 31 is composed of a screw bolt 32 having a screw formed at both ends, and a pair of feather boards 1 screwed to both ends of the screw bolt 32, respectively. Gusset plate 30 provided in the vicinity
, Is fixed via a blade plate 1.

As shown in FIG. 1, a blade plate 1 has a tubular portion 2 at one end, and the other portion is flattened and flattened.
And one pipe member 4. The tubular part 2 is
A screw 5 is formed on the inner periphery thereof, and is screwed to an end of the screw bolt 32. The length of the turnbuckle 31 can be adjusted by rotating the blade plate 1 relative to the screw bolt 32 and changing the length of the threaded portion. The plate portion 3 has a bolt insertion hole 7 extending in the same direction as the axis of the tubular portion 2 and penetrating in the thickness direction of the plate portion 3. Then, the bolt insertion hole 7 and the insertion hole provided in the gusset plate 30 are superimposed on the gusset plate 30 so that the positions thereof coincide with each other, and the gusset plate 30 is fastened and fixed by the inserted bolt 34a and the nut 34b.

Since the blade 1 utilizes the shape of the tube material, it can be manufactured without significant processing of the material. Therefore, the manufacturing process is reduced,
Costs can be kept low.

The tubular portion 2 is a reduced diameter portion of the outer diameter of the tubular member 4. In this case, by drawing, it is possible to maintain the integrity and to obtain an appropriate diameter while maintaining the strength.

The plate-shaped portion 3 penetrates through the plate-shaped portion 3 in the thickness direction, one end of the plate-shaped portion 3 continues to the opening 2a of the tubular portion 2, and the width of the plate-shaped portion 3 is larger than the root diameter of the screw 5. Smaller width w
It has a long hole 6. With this arrangement, the screw 5 on the inner periphery of the tubular portion 2 is screwed to the screw bolt 32, and when the blade plate 1 is relatively rotated with respect to the screw bolt 32, the distal end portion 32 a of the screw bolt 32 projecting from the tubular portion 2 is elongated. 6, the bolt can be rotated while escaping, so that the bolt stroke can be increased. Therefore, the adjustment range of the turnbuckle length becomes large, and the turnbuckle 31
The installation possible range is expanded.

FIG. 4 is a perspective view showing a specific example of a blade plate of the second architectural buckle according to the present invention. The blade plate 11 includes a pair of plate members 14, 14 having a gutter-shaped curved portion 14 a at one end, and a tubular portion 12 formed by combining the curved portions 14 a with their concave portions facing each other. , 14 in the form of a plate. The pair of plate members 14 are joined by a ring 18 fitted around the outer periphery of the tubular portion 12. A screw 15 is formed on the inner periphery of the tubular portion 12, and is screwed to an end of a screw bolt 32. Further, the plate-shaped portion 13 extends in the same direction as the axis of the tubular portion 12 and
3 has a bolt insertion hole 17 penetrating in the thickness direction. Then, the bolt insertion hole 7 and the insertion hole provided in the gusset plate 30 are overlapped on the gusset plate 30 so that the positions thereof coincide with each other, the bolt 34a is inserted and the nut 34b is fastened and fixed. . Since the operating state of the blade 11 is the same as that of the blade 1, illustration and description thereof are omitted.

The blade plate 11 utilizes the shape of the plate material as the material, and the pair of plate materials are easily and firmly joined by the ring, so that the material is manufactured by a simple process without applying a large amount of processing to the material. Can be. Therefore, the number of manufacturing steps can be reduced, and the cost can be reduced.

The plate-like portion 13 penetrates through the plate-like portion 13 in the thickness direction, one end of the plate-like portion 13 continues to the opening 12a of the tubular portion 12, and the width of the plate-like portion 13 is larger than the root diameter of the screw 15. It has a slot 16 of smaller width w. In this case, the same effect as that of the elongated hole 6 in the blade 1 can be obtained.

FIGS. 5 and 6 show a specific example of the blade plate of the third architectural buckle according to the present invention. FIG.
FIG. 3 is a perspective view of the feather plate. FIG. 6 is an enlarged plan view showing a use state of the architectural turnbuckle using the feather board.

The blade plate 21 is composed of a pair of plate members 24, 24 having a gutter-shaped curved portion 24a at one end. The tubular portion 22 is formed by combining the curved portions 24a such that their concave portions face each other. And a holding portion 23 in which flat portions 24b of the plate members 24, 24 are arranged to face each other at a predetermined interval t. The pair of plate members 24, 24
The tubular portions 22 are joined by a ring 28 fitted around the outer periphery. The tubular portion 22 has a screw 25 formed on the inner periphery thereof, and is screwed to an end of a screw bolt 32. The length of the turnbuckle 31 can be adjusted by rotating the blade plate 21 relative to the screw bolt 32 and changing the length of the screwed portion. The holding portion 23
Has a bolt insertion hole 27 extending in the same direction as the axis of the tubular portion 22 and penetrating through the thickness direction of the flat portion 24b of the plate members 24,24. Then, with the holding portion 23 sandwiching the gusset plate 30 so that the positions of the bolt insertion hole 27 and the insertion hole provided in the gusset plate 30 coincide with each other,
It is fastened and fixed with a nut 34b.

The blade plate 21 utilizes the shape of the plate material to be used as the material, and the pair of plate materials is easily and firmly joined by the ring, so that the material can be manufactured in a simple process without any significant processing of the material. Can be. Therefore, the number of manufacturing steps can be reduced, and the cost can be reduced. In addition, since the gusset plate 30 can be sandwiched in the interval t of the sandwiching portion 23 and the axis of the gusset plate 30 and the axis of the turnbuckle 31 can be aligned and fixed, the side (the direction in which the feather plate 21 is peeled off from the gusset plate 30). And the fixing strength can be increased.

The holding portion 23 penetrates through the flat portions 24b of the plate members 24, 24 in the thickness direction, and one end thereof is connected to the tubular portion 22b.
And an elongated hole 26 having a width w larger than the root diameter of the screw 25 and smaller than the width of the holding portion 23. With this configuration, the screw 25 on the inner periphery of the tubular portion 22 is screwed to the screw bolt 32, and when the blade plate 21 is relatively rotated with respect to the screw bolt 32, the distal end portion 32 a protruding from the tubular portion 22 of the screw bolt 32 is elongated. Since it is possible to rotate while escaping along 26, the bolt in / out stroke can be increased. Therefore, the adjustment range of the turnbuckle length becomes large, and the installable range of the turnbuckle 31 is expanded.

The distance t between the flat portions 24 b of the pair of plate members constituting the holding portion 23 may be adapted to the thickness of the gusset plate 30. By doing so, the holding portion 23 is brought into close contact with the gusset plate 30, the displacement of the axis of the holding portion 23 and the gusset plate 30 is eliminated, and the fixing strength can be further increased.

Next, a specific example of the first method of manufacturing the blade of the turnbuckle for construction according to the present invention will be described with reference to FIG.
First, in performing the processing, the tube material 4 as a material is cut into an appropriate length. (State of FIG. 7A)

Subsequently, the squeezed tubular portion 2 is formed so that the outer diameter of one end of the tube material 4 is reduced. (State of FIG. 7B) As a method of reducing the outer diameter, a known method such as swaging can be used. The steps up to here correspond to the first step of the present invention.

Subsequently, other portions except the portion (the tubular portion 2) narrowed down in the first step are flattened into a plate shape to form a plate portion 3. (State of FIG. 7C)
As a crushing method, a known method such as a press can be used. The steps up to here correspond to the second step of the present invention.

Subsequently, a screw 5 is formed on the inner periphery of the squeezed portion (tubular portion 2), and the plate-shaped portion (plate portion 3) is formed.
Then, a bolt insertion hole 7 is formed, and the manufacturing process is completed. Here, the order of the step of forming the screw 5 and the step of drilling the bolt insertion hole 7 is not limited, and one of the steps is a third step,
The other is the fourth step.

According to this manufacturing method, the number of steps is reduced as compared with a conventional manufacturing method such as forging which requires steps such as melting and molding of a material, so that the cost can be reduced.

In the step of drilling the bolt insertion hole 7 as the third step or the fourth step, the bolt insertion hole 7 is drilled coaxially with the narrowed portion, and the elongated hole 6 is further inserted into the hole. A step of piercing the constricted portion and the coaxial line is included.
This makes it possible to manufacture a blade plate having a large bolt in / out stroke with a simple process.

If it is necessary to first crush the pipe material flatly due to a problem of the manufacturing facility, etc., the above-mentioned step of flatly crushing the pipe material 4 into a plate shape is performed by adding a tubular portion to one end of the pipe material 4. 2 and the step of narrowing down the outer diameter of one end of the tubular member 4 is also referred to as the second step of narrowing down the outer diameter of the tubular portion 2 left in the first step. Good.

Next, a specific example of the second method of manufacturing a turnplate for architectural turnbuckles according to the present invention will be described with reference to the above-mentioned turnplate 11.
Will be described with reference to FIGS. 4 and 8. In performing the processing, first, the plate material 14 as a material is cut into an appropriate length. (State of FIG. 8A)

Subsequently, one end of the plate member 14 is bent into a gutter shape to form a curved portion 14a. (State in FIG. 8B) As a method for forming the curved portion, a known method such as press working can be used. The steps up to here correspond to the first step of the present invention.

Subsequently, the tubular portion 12 is formed by combining the pair of plate members 14 and 14 having the curved portions 14a formed in the first step so that the concave portions of the curved portions 14a face each other. Then, the tubular portion 12 (the combined curved portion 14)
a, 14a), a ring 17 is fitted around the outer periphery, and the pair of plate members 14, 14 are integrally joined. At this time, the flat portions 14b, 14b of the pair of plate members 14, 14 are joined in a plate shape to form the plate portion 13. The steps up to here correspond to the second step of the present invention.

Subsequently, a screw 15 is formed on the inner periphery of the tubular portion 12 (combined curved portions 14a, 14a), and a bolt insertion hole 17 is formed in the plate portion 13 (the flat portion 14b of the plate material 14). Piercing and the manufacturing process ends. Here, the order of the step of forming the screw 5 and the step of forming the bolt insertion hole 7 is not limited, and one of the steps is a third step of the present invention and the other is a fourth step.

In FIG. 8, the curved portion 14a is curved so that the convex portion protrudes from the flat portion 14b. However, the curved portion 14a is curved such that both ends of the concave portion protrude from the flat portion 14b. Then, the feather board 21 is formed in the same manner.
Can be manufactured.

According to this manufacturing method, the plate material can be processed in fewer steps and the cost can be reduced as compared with the conventional manufacturing method such as forging which requires steps such as melting and molding of the material.

In the step of drilling the bolt insertion hole 7 as the third step or the fourth step, the bolt insertion hole 17 is drilled coaxially with the narrowed portion.
6 includes a step of coaxially drilling 6 with the narrowed portion. This makes it possible to manufacture a blade plate having a large bolt in / out stroke with a simple process.

[0052]

The first architectural turnbuckle blade according to the present invention utilizes the shape of the tube material, so that it can be manufactured without significant processing of the tube material. Therefore, the number of manufacturing steps is reduced, and the cost can be reduced.

According to the second aspect, an appropriate diameter can be obtained by drawing, while maintaining the integrity and the strength.

According to the third aspect of the present invention, the second architectural turnbuckle feather plate utilizes the shape of the plate material as a material, and the pair of plate materials are easily and firmly joined to each other by the ring. , And can be manufactured by a simple process. Therefore, the number of manufacturing steps can be reduced, and the cost can be kept low.

According to the fourth aspect, when the screw on the inner periphery of the tubular portion is screwed to the screw bolt, and the blade plate is rotated relative to the screw bolt, the tip protruding from the tubular portion of the screw bolt is aligned with the elongated hole. Since the rotation can be performed while releasing the bolt, the stroke of the bolt in / out can be increased. Therefore, the adjustment range of the turnbuckle length becomes large, and the installable range of the turnbuckle is expanded.

According to the fifth aspect of the present invention, the third architectural turnbuckle blade plate utilizes the shape of the plate material as a material, and the pair of plate materials is easily and firmly joined by a ring, so that the plate material is significantly processed. , And can be manufactured by a simple process. Therefore, the number of manufacturing steps can be reduced, and the cost can be reduced. In addition, since the gusset plate can be sandwiched between the holding portions and the axis of the gusset plate and the turnbuckle can be aligned and fixed, the force applied to the side (the direction in which the feather plate is peeled off from the gusset plate) is reduced, The fixing strength can be increased.

According to the sixth aspect, when the screw at the inner periphery of the tubular portion is screwed to the screw bolt, and the blade plate is rotated relative to the screw bolt, the tip protruding from the tubular portion of the screw bolt extends along the elongated hole. Since the rotation can be performed while releasing the bolt, the stroke of the bolt in / out can be increased. Therefore, the adjustment range of the turnbuckle length becomes large, and the installable range of the turnbuckle is expanded.

According to the seventh aspect, the holding portion is brought into close contact with the gusset plate, the displacement of the axis of the holding portion and the axis of the gusset plate can be eliminated, and the fixing strength can be further increased.

According to the first method of manufacturing a turnboard for a turnbuckle according to the eighth aspect of the present invention, the number of steps is smaller than that of a conventional manufacturing method such as forging which requires steps such as material melting and molding. The tube material can be processed, and the cost can be kept low.

According to the ninth aspect, it is possible to manufacture the pipe in a situation where the pipe has to be crushed flat first due to a problem of the manufacturing facility.

According to the tenth aspect, a vane plate having a large bolt in / out stroke can be manufactured by a simple process.

According to the second method of manufacturing a turnplate for a turnbuckle for construction according to the eleventh aspect, the number of steps is smaller than that of a conventional manufacturing method such as forging that requires steps such as melting and molding of a material. The plate material can be processed, and the cost can be kept low.

According to the twelfth aspect, it is possible to manufacture a blade plate having a large bolt in / out stroke with a simple process.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a specific example of a vane plate of a first architectural turnbuckle according to the present invention.

FIG. 2 is a view showing a use state of a turnbuckle for architecture in which the feather board is used.

FIG. 3 is an enlarged plan view showing a use state of the architectural turnbuckle using the feather board.

FIG. 4 is a perspective view showing a specific example of a vane plate of the second architectural turnbuckle according to the present invention.

FIG. 5 is a perspective view showing a specific example of a vane plate of the third architectural turnbuckle according to the present invention.

FIG. 6 is an enlarged plan view showing a use state of the architectural turnbuckle using the feather board.

FIG. 7 is a perspective view showing, for each step, a tube material processed by the first method for manufacturing a turnboard for a turnbuckle according to the present invention.

FIG. 8 is a perspective view showing, for each step, a plate material to be processed by the second method for manufacturing a turnboard for a turnbuckle according to the present invention.

[Explanation of symbols]

 1, 11, 21 Blade plate 2, 12, 22 Tubular portion 2a, 12a, 22a Opening 3, 13 Plate portion 4 Tubular material 5, 15, 25 Screw 6, 16, 26 Slot 7, 17, 27 Bolt insertion hole 14, 24 plate material 14a, 24b curved portion 14b, 24b flat portion 18, 28 ring 23 holding portion 30 gusset plate 31 architectural turnbuckle 32 screw bolt 32a tip end of screw bolt protruding from tubular portion 35 building w slot width t Spacing between clamping parts

Claims (12)

[Claims] 1. A tubular member (4) having a tubular portion (2) at one end and a flat portion (3) formed by crushing the other portion flatly. A screw (5) is formed around the circumference, and the plate-like portion (3) extends in the same direction as the axis of the tubular portion (2),
A turnbuckle blade (1) having a bolt insertion hole (7) penetrating through the plate-shaped portion (3) in the thickness direction. 2. The building turnbuckle vane plate (1) according to claim 1, wherein said tubular portion (2) is a portion having a reduced diameter of an outer diameter of said tubular material (4). 3. A tubular portion (12) comprising a pair of plate members (14, 14) having a gutter-shaped curved portion (14a) at one end, and combining the curved portions (14a) such that their concave portions face each other. )When,
A plate portion (13) formed by combining flat portions (14b) of the pair of plate members (14, 14) into a plate shape, and the tubular portion (12)
A ring (18) is fitted on the outer periphery, a screw (15) is formed on the inner periphery, and the plate-like portion (13) extends in the same direction as the axis of the tubular portion (12), and A turn plate for a turnbuckle for construction (11), characterized in that it has a bolt insertion hole (17) penetrating in the thickness direction of (13). 4. The plate-like portion (3 or 13) is provided with the plate-like portion (3 or 1).
3) penetrates the thickness direction, one end follows the opening (2a or 12a) of the tubular portion (2 or 12), and the plate-like portion (3 or 13) is larger than the root diameter of the screw (5 or 15). ), Having a slot (6 or 16) having a width (w) smaller than the width of the turnbuckle according to any one of claims 1 to 3. 5. A tubular portion (22) comprising a pair of plate members (24, 24) having a gutter-shaped curved portion (24a) at one end, and combining the curved portions (24a) such that their concave portions face each other. )When,
The flat portions (24b) of the pair of plate members (24, 24) are
(t) and a holding portion (23) configured to face each other.The tubular portion (22) has a ring (28) inserted in the outer periphery, and a screw (25) formed in the inner periphery. The holding portion (23) has a bolt insertion hole (27) extending in the same direction as the axis of the tubular portion (22) and penetrating through the thickness direction of the flat portion (24b) of the plate material (24, 24). A turnbuckle for an architectural turnbuckle (21). 6. The holding portion (23) penetrates through the flat portion (24b) of the plate material (24, 24) in the thickness direction, and one end of the holding portion (23) extends through the tubular portion (22).
The architectural turn according to claim 5, further comprising a slot (26) having a width (w) larger than the root diameter of the screw (25) and smaller than the width of the holding portion (23), following the opening (22a). Buckle hagoita. 7. A pair of plate members (2) constituting said holding portion (23).
7. An architectural turnbuckle blade according to claim 5, wherein the spacing (t) between the flat portions (24b) of the (4,24) is adapted to the thickness of the gusset plate (30). 8. A first step of narrowing the outer diameter of one end of the pipe member (4), and a second step of flattening other parts except the part narrowed in the first step into a plate shape. Forming a screw (5) on the inner periphery of the squeezed portion, one of which is the third process and the other is the fourth process, and the step of forming a bolt on the plate-shaped portion. And a step of forming an insertion hole (7). 9. The first step of flattening and crushing the tube (4) into a plate while leaving a tubular portion at one end of the tube (4), 9. The manufacture of a turnbuckle feather board (1) according to claim 8, wherein the step of narrowing the outer diameter of one end is a second step of narrowing the outer diameter of the tubular portion left in the first step. Method. 10. The building according to claim 8, wherein the step of drilling the bolt insertion hole (7) includes the step of drilling a slot (6) coaxially with the narrowed portion. Of manufacturing a turnbuckle blade (1). 11. A first step of bending one end of a plate material (14 or 24) into a gutter shape, and in the first step, a bending portion (14a or 24).
a) is formed by combining a pair of plate members (14, 14 or 24, 24) such that the concave portions of the curved portions (14a or 24a) face each other,
A ring (18 or 28) is inserted around the outer periphery of the combined curved portion (14a, 14a or 24a, 24a), and the pair of plate members (14, 14 or 2) is inserted.
(24, 24), and a screw (15 or 25) on the inner periphery of the combined curved portion, one of which is a third step and the other is a fourth step. And a step of forming a bolt insertion hole (17 or 27) in a flat portion (14b or 24b) of the pair of plate members (14, 14 or 24, 24). Turnbuckle blade (11 or 2
1) Manufacturing method. 12. The step of drilling the bolt insertion hole (17 or 27) includes forming an elongated hole (16 or 26) coaxially with the narrowed portion.
The method for manufacturing a turnplate for a building turnbuckle (11 or 21) according to claim 11, further comprising a step of drilling.