Construction Turnbuckles

Abstract

To provide an architectural turnbuckle that is difficult to generate bending stress in an attachment portion.SOLUTION: An architectural turnbuckle (100) according to the present disclosure comprises: a turnbuckle body (1) adjusting a length in a longitudinal direction; and a turnbuckle bolt (10) having a connection portion (2) attached to both ends of the turnbuckle body (1) in the longitudinal direction and movable in the longitudinal direction by rotation around a central axis (O) of the turnbuckle body (1). In the architectural turnbuckle (100), each turnbuckle bolt (10) has an attachment portion (20) provided on the opposite side of the turnbuckle body (1) in the longitudinal direction, the attachment portion (20) has a plurality of plate-like members (substrate portions (21)) arranged such that they are each substantially parallel, and each of the plate-shaped members has a hole (22) for being fixed to an attachment portion (50) on the shaft assembly side.SELECTED DRAWING: Figure 1B

Description

[Technical Field]

[0001] The present disclosure relates to construction turnbuckles. [Background technology]

[0002] As an example of a conventional construction turnbuckle, as shown in Non-Patent Document 1, there is disclosed a construction turnbuckle that includes a turnbuckle body that adjusts the longitudinal length, and turnbuckle bolts that are attached to both longitudinal sides of the turnbuckle body, with a battledore-shaped plate-like member attached to the tip of the turnbuckle bolt. [Prior art documents] [Non-patent literature]

[0003] [Non-Patent Document 1] "JIS A 5540:2008 Turnbuckles for Construction," Japan Standards Association, October 20, 2008 Summary of the Invention [Problem to be solved by the invention]

[0004] Incidentally, in the construction turnbuckle of Non-Patent Document 1, a battledore-shaped plate member is attached to one side of the attachment part on the frame side, so the rod part of the turnbuckle bolt and the attachment part on the frame side are offset in the thickness direction of the battledore-shaped plate member. As a result, when the construction turnbuckle is in use, bending stress is applied to the rod part and the attachment part, and it can be difficult to select bolts and nuts for installation that can withstand the load, so there is room for improvement in these respects.

[0005] An object of the present disclosure is to provide a construction turnbuckle that is less likely to generate bending stress in the mounting portion. [Means for solving the problem]

[0006] In order to solve the above-mentioned problems, the construction turnbuckle of the present disclosure has the following features: [1] A turnbuckle body that adjusts the length in the longitudinal direction; a turnbuckle bolt having connection portions attached to both longitudinal ends of the turnbuckle body portion and movable in the longitudinal direction by rotation about the central axis of the turnbuckle body portion; Equipped with , which is the framework of the building, is bridged diagonally A construction turnbuckle, Each of the turnbuckle bolts has a mounting portion provided on the opposite side of the turnbuckle body in the longitudinal direction, and the mounting portions are arranged so as to be approximately parallel to each other. 2 sheets Each of the plate-like members has a hole for fixing to a mounting portion on the frame side, The turnbuckle body has a hollow gripping portion having an outer diameter larger than that of the connecting portion, Each of the plate-like members has a substantially rectangular cutout portion at its base end, and the outer circumferential surface of the tip of the rod-shaped connecting portion is directly fixed by welding to an edge portion of the cutout portion that extends in the longitudinal direction of the construction turnbuckle. And, The aforementioned Two plate-like members are arranged at symmetrical positions in the up-down direction with respect to the central axis of the connection portion of each of the turnbuckle bolts. It is characterized by the presence of

[0007] Further, the construction turnbuckle of the present invention is [2] In the configuration described in [1] above, it is preferable that only one hole is formed at approximately the same position in a plan view in each of the plate-like members that are arranged to be approximately parallel to one another. [Effects of the Invention]

[0009] According to the present disclosure, it is possible to provide a construction turnbuckle that is less likely to generate bending stress in the attachment portion. [Brief explanation of the drawings]

[0010] [Figure 1A] FIG. 1 is a plan view of a construction turnbuckle according to an embodiment of the present disclosure. [Figure 1B]FIG. 2 is an enlarged front view of an attachment portion of a construction turnbuckle according to an embodiment of the present disclosure. [Figure 1C] FIG. 1B is a cross-sectional view taken along the line AA in FIG. 1A. [Figure 2] 1 is a modified example of a construction turnbuckle according to an embodiment of the present disclosure. [Figure 3A] 1 is an example of a framework equipped with a construction turnbuckle according to an embodiment of the present disclosure. [Figure 3B] 1 is an example of a framework equipped with a construction turnbuckle according to an embodiment of the present disclosure. [Figure 4] 1 is an enlarged plan view showing the state in which the mounting portion of a construction turnbuckle according to one embodiment of the present disclosure is fixed to the mounting portion on the framework side. FIG. [Figure 5A] 1 is an example of a framework equipped with a construction turnbuckle according to an embodiment of the present disclosure. [Figure 5B] 1 is an example of a framework equipped with a construction turnbuckle according to an embodiment of the present disclosure. DETAILED DESCRIPTION OF THE INVENTION

[0011] Hereinafter, a construction turnbuckle 100 according to an embodiment of the present disclosure will be described in detail with reference to the drawings (FIGS. 1A to 5B).

[0012] The architectural turnbuckle 100 of this embodiment is a diagonal brace that spans the framework of a building, which is made up of, for example, pillar members and beam members, and is a reinforcing member in which the connection parts 2 of the turnbuckle bolt 10 are attached to both longitudinal ends of the turnbuckle body 1 in a length-adjustable state, and a flat mounting part 20, also known as a battledore, is fixed to the tip of the connection part 2.

[0013] As shown in Fig. 1A etc., the construction turnbuckle 100 comprises a turnbuckle body 1 that is operated by an operator when adjusting the length of the construction turnbuckle 100 in the longitudinal direction (left-right direction, X direction in Fig. 1A), and turnbuckle bolts 10 that are attached to both longitudinal ends of the turnbuckle body 1. The turnbuckle bolt 10 is attached to the turnbuckle body 1 at the male thread portion 2b of the connection portion 2 provided on the turnbuckle body 1 side in the longitudinal direction, and can be moved in the longitudinal direction by rotating about the central axis O of the turnbuckle body 1.

[0014] In this specification, claims, and drawings, the up-down direction of the architectural turnbuckle 100 is the direction perpendicular to the paper surface (Z direction) in the plan view of FIG. 1A, and the up-down direction in the front view of FIG. 1B. The central axis O of the architectural turnbuckle 100 extending in the left-right direction (X direction) in FIG. 1A coincides with the central axis of the connecting part 2 provided in the shape of a round bar. The width direction of the architectural turnbuckle 100 is the up-down direction (Y direction) in FIG. 1A, and the direction perpendicular to the paper surface in FIG. 1B. The side closer to the turnbuckle body 1 in the longitudinal direction (X direction) may be called the base end, and the side farther from the turnbuckle body 1 may be called the tip end.

[0015] In this embodiment, the names of the architectural turnbuckle 100, turnbuckle body 1, and turnbuckle bolt 10 are the same as those of the architectural turnbuckle, turnbuckle body, and turnbuckle bolt specified in JIS A 5540:2008, JIS A 5541:2008, and Appendix A of JIS A 5540:2008. However, the architectural turnbuckle 100 and turnbuckle bolt 10 differ from those specified in JIS A 5540:2008 and Appendix A of JIS A 5540:2008 in that at least the mounting portion 20 has multiple plate-shaped members. In addition, the configuration of the turnbuckle body 1 may be a configuration that complies with JIS A 5541:2008, or it may be a configuration that does not comply with JIS A 5541:2008 as long as it does not interfere with the mounting of the turnbuckle bolt 10.

[0016] The accompanying drawings of this disclosure are drawn to equal scales in the vertical direction (Z direction), longitudinal direction (X direction), and width direction (Y direction), and the aspect ratio of the construction turnbuckle 100 in the drawings represents the aspect ratio of the construction turnbuckle 100 of one embodiment of the present disclosure. However, the configuration, shape, dimensional ratio, etc. of the construction turnbuckle 100 in the accompanying drawings are merely one embodiment of the present disclosure. The present invention should be interpreted based on the wording of the claims, and is not limited to the configuration, shape, dimensional ratio, etc. shown in the drawings.

[0017] The turnbuckle body 1, also known as a split-frame type, includes two gripping portions 1a extending longitudinally and spaced apart in the width direction, a threaded cylindrical portion 1b connected to both longitudinal ends of the gripping portion 1a, and a female threaded portion 1c on the inner surface of the threaded cylindrical portion 1b. By arranging the two gripping portions 1a at a greater widthwise distance than the outer diameter of the threaded cylindrical portion 1b as shown in FIG. 1A, a worker can apply a larger rotational moment by grasping the gripping portion 1a and rotating it around the central axis O. This allows the turnbuckle body 1 to be rotated with less force, allowing the length of the turnbuckle body 1 to be adjusted in the longitudinal direction. The female threaded portion 1c of the turnbuckle body 1 is configured to threadably engage with a male threaded portion 2b on the turnbuckle body 1 side of the connecting portion 2, which is a round bar-shaped portion (described later).

[0018] The connecting part 2 is a rod-shaped member whose base end is attached to the turnbuckle body 1 and whose tip end is fixed to the attachment part 20. The connecting part 2 has a substantially circular cross section and includes a rod-shaped part 2a provided on the attachment part 20 side and extending in the longitudinal direction, and a male threaded part 2b provided on the turnbuckle body 1 side. The connecting part 2 may be a solid member or an annular member. Furthermore, the cross-sectional shape of the rod-shaped part 2a is not limited to a circular shape and may be an elliptical shape, a rectangular shape, or the like.

[0019] The male thread portion 2b provided on the connection portion 2 of the turnbuckle bolt 10 on the right side of FIG. 1A (right-handed turnbuckle bolt 11R) is a right-handed thread, while the male thread portion 2b provided on the connection portion 2 of the turnbuckle bolt 10 on the left side of FIG. 1A (left-handed turnbuckle bolt 11L) is a left-handed thread. With this configuration, by rotating the turnbuckle body 1 so that the upper gripping portion 1a in FIG. 1A moves toward the front of the page, both of the left and right connection portions 2 can be moved toward the turnbuckle body 1. Therefore, the length from the longitudinal center position of the turnbuckle body 1 to the tip of each turnbuckle bolt 10 can be adjusted so that it becomes shorter. On the other hand, by rotating the turnbuckle body 1 so that the upper gripping portion 1a in FIG. 1A moves toward the back of the page, both of the left and right connection portions 2 can be moved away from the turnbuckle body 1. Therefore, the length can be adjusted so that the length in the longitudinal direction from the center position of the turnbuckle body 1 to the tip end of each turnbuckle bolt 10 is long.

[0020] In this embodiment, the longitudinal lengths of the rod-shaped portion 2a not provided with a male thread and the male threaded portion 2b in the connection portion 2 are configured to be approximately equal, but this is not limited to this. The ratio of the longitudinal lengths of the rod-shaped portion 2a and the male threaded portion 2b can be determined appropriately based on the longitudinal length adjustment range required for the construction turnbuckle 100, etc.

[0021] In addition, the mounting portion 20 constituting the construction turnbuckle 100 includes a flat base plate portion 21 (plate-shaped member), a cutout portion 23 having an approximately rectangular shape in a plan view provided at the base end portion (turnbuckle body portion 1 side) of the base plate portion 21, and a hole portion 22 for fixing the construction turnbuckle 100 to the mounting portion 50 on the frame side.

[0022] As shown in Fig. 1B, the two substrate portions 21 are arranged vertically so that they are substantially parallel to one another. As shown in Fig. 1A, the cutout portion 23 of the substrate portion 21 extends in the longitudinal direction (the left-right direction in Fig. 1A), and the outer peripheral surface of the rod-shaped portion 2a of the connection portion 2 is welded and fixed to the edge portion extending in the longitudinal direction of the cutout portion 23 (see Fig. 1C). Note that the substrate portion 21 and the rod-shaped portion 2a may be configured to be fixed by a method other than welding, as long as the fixing strength is at least a predetermined level.

[0023] 1C, the substrate portion 21 on the upper side (positive side in the Z direction) of the mounting portion 20 is welded and fixed to the notched portions 23 of the substrate portion 21 via welded portions W at two locations on the outer circumferential surface above the central axis O of the rod-shaped portion 2a of the connecting portion 2. Similarly, the substrate portion 21 on the lower side (negative side in the Z direction) of the mounting portion 20 is welded and fixed to the notched portions 23 of the substrate portion 21 via welded portions W at two locations on the outer circumferential surface below the central axis O of the rod-shaped portion 2a of the connecting portion 2. In this embodiment, the two substrate portions 21 are arranged symmetrically in the up-down direction with respect to the central axis O of the construction turnbuckle 100 and the connecting portion 2, as shown in FIGS. 1B and 1C.

[0024] In this embodiment, the two base plate portions 21 are arranged at positions symmetrical in the vertical direction with respect to the central axis O of the connection portion 2 of the turnbuckle bolt 10. In other words, the centers of gravity of the two base plate portions 21 are located on the central axis O of the connection portion 2. For this reason, as shown in FIG. 1B , when a mounting portion 50 called a gusset on the framework side is arranged in the space between the two base plate portions 21 and the mounting portion 50 is fastened with a high-strength bolt 31 and a fastening nut 32, the height position of the mounting portion 50 (the central height position of the mounting portion 50) and the height position of the attachment portion 20 (a height position equidistant from the two base plate portions 21) both coincide with the height position of the central axis O (i.e., the height position of the architectural turnbuckle 100). Therefore, even if tensile stress or compressive stress is applied in the longitudinal direction of the architectural turnbuckle 100, it is possible to make it difficult for bending stress to occur in the attachment portion 20 and the framework-side attachment portion 50. Therefore, the load on the high-strength bolt 31 and the fastening nut 32 can be suppressed, and the range of choices for the high-strength bolt 31 and the fastening nut 32 can also be expanded. In place of the high-strength bolt 31, for example, a hexagonal bolt with a strength classification of 10.9 may be used.

[0025] The two base plate portions 21 may be provided at heights slightly offset from positions symmetrical in the up-down direction with respect to the central axis O of the connection portion 2 of the turnbuckle bolt 10. Furthermore, the height positions of the mounting portion 50 and the attachment portion 20 do not have to completely coincide with the height position of the central axis O (i.e., the height position of the construction turnbuckle 100).

[0026] In this embodiment, the nominal diameter of the male thread portion 2b and the female thread portion 1c may be selected from, for example, M24, M27, M30, and M33. Alternatively, a nominal diameter different from the above may be used.

[0027] In this embodiment, materials that meet JIS standards are mainly used, but are not limited to these. For example, the material of the connection part 2 can be SNR400B or SNR490B, which are rolled steel bars for building structures, but are not limited to these.

[0028] 2 shows a construction turnbuckle 200 which is a modified example of an embodiment of the present disclosure. The construction turnbuckle 200 which is a modified example is similar to the embodiment shown in FIG. 1A except that the shape of the turnbuckle body 101 is different. Therefore, the following description will focus on the differences from the embodiment.

[0029] The construction turnbuckle 200 according to the modified example comprises a turnbuckle body 101, also known as a pipe type, and turnbuckle bolts 10 attached to both longitudinal ends of the turnbuckle body 101. The tip of the turnbuckle bolt 10 is provided with an attachment part 20 for fixing the construction turnbuckle 200 to the attachment part 50 on the frame side.

[0030] As shown in FIG. 2, the turnbuckle body 101 includes a cylindrical gripping portion 101a extending in the longitudinal direction, a threaded cylindrical portion 101b connected to both longitudinal ends of the gripping portion 101a, and a female threaded portion 101c provided on the inner surface of the threaded cylindrical portion 101b. By making the outer diameter of the cylindrical gripping portion 101a larger than the outer diameter of the threaded cylindrical portion 101b as shown in FIG. 2, a larger rotational moment can be applied by an operator gripping the gripping portion 101a and rotating it around the central axis O. Therefore, the turnbuckle body 101 can be rotated with less force to adjust its length in the longitudinal direction. The female threaded portion 101c of the turnbuckle body 101 is configured to threadably engage with the male threaded portion 2b provided on the turnbuckle body 101 side of the connecting portion 2, which is provided in a round bar shape.

[0031] FIG. 3A shows an example of a frame 300 equipped with an architectural turnbuckle 100 according to this embodiment. The frame 300 is formed on a foundation 54, with a building framework consisting of two pillar members 51 extending vertically in front view and a beam member 52 spanning horizontally between the tops of the pillar members 51. The foundation members 54 are connected horizontally by a foundation beam 53, which prevents the pillar members 51 from rotating or moving horizontally. In this embodiment, the foundation members 54 and the foundation beam 53 are made of reinforced concrete. As shown in FIG. 3A and other figures, the architectural turnbuckle 100 according to this embodiment is diagonally spanned between the pillar members 51 and the beam member 52 as a diagonal brace, thereby increasing the resistance of the frame 300 to external forces such as earthquakes and typhoons. In the illustrated example, an architectural turnbuckle 100 is diagonally spanned between an attachment part 50a fixed by welding or the like to the bottom of a pillar member 51 on the left side of the figure, and an attachment part 50b fixed to the right end part of a beam member 52 on the upper side of the figure. Similarly, an architectural turnbuckle 100 is diagonally spanned between an attachment part 50a fixed by welding or the like to the bottom of a pillar member 51 on the right side of the figure, and an attachment part 50b fixed to the left end part of a beam member 52 on the upper side of the figure. The two architectural turnbuckles 100 are attached to the framework 300 with an appropriate tension by an operator adjusting the rotation of the turnbuckle body 1.

[0032] FIG. 3B shows an example of a frame 400 equipped with an architectural turnbuckle 100 according to this embodiment. The frame 400 is a building framework formed by two pillar members 51 extending vertically in a front view and two beam members 52 horizontally spanning the upper and lower portions of the pillar members 51. In this example, the foundation beam 53 shown in FIG. 3A is not used, and the lower end of the pillar member 51 is fixed to the foundation. As shown in FIG. 3B and other figures, the architectural turnbuckle 100 according to this embodiment is diagonally spanned between the pillar member 51 and the beam member 52 to act as a brace, thereby increasing the resistance of the frame 300 to external forces such as earthquakes and typhoons. In the illustrated example, the architectural turnbuckle 100 is spanned diagonally between an attachment part 50a fixed by welding or the like to the lower portion of the pillar member 51 on the left side of the figure and an attachment part 50b fixed to the right end of the beam member 52 on the upper side of the figure. Similarly, an architectural turnbuckle 100 is diagonally spanned between an attachment part 50a fixed by welding or the like to the lower part of the column member 51 on the right side of the figure, and an attachment part 50b fixed to the left end part of the beam member 52 on the upper side of the figure.

[0033] Here, a method for fastening the mounting portion 20 to the mounting portions 50 (50a, 50b) will be described. The mounting portions 50 (50a, 50b), also called gussets, are delivered to the construction site in a state in which they are previously fixed to the column member 51 or the beam member 52 by welding. After temporarily assembling the frame 300, 400, a worker fastens the mounting portions 20 provided at both ends of the architectural turnbuckle 100 to the mounting portions 50 (50a, 50b) of the column member 51 or the beam member 52. To fasten the mounting portion 20 to the mounting portion 50, as shown in FIG. 1B , the mounting portion 50 on the frame 300, 400 side is placed in the space between the two base plate portions 21, and the mounting portion 20 and the mounting portion 50 are fastened together with the high-strength bolt 31 and the fastening nut 32. In this embodiment, each base plate portion 21 of the mounting portion 20 has only one hole 22 formed at approximately the same position in a plan view. Then, by fastening the high-strength bolts 31 so that they pass through the holes 22 of each base plate portion 21 and the holes on the mounting portion 50 side, the construction turnbuckle 100 can be attached to the mounting portion 50 at any mounting angle with the hole portion 22 as the center of rotation, as shown by the arrow in Figure 4.

[0034] With the above configuration, even if the installation angle of the architectural turnbuckle 100 changes due to changes in the spacing between the pillar members 51 or the spacing between the beam members 52, the architectural turnbuckle 100 can be installed to the mounting part 50 at any installation angle with the hole 22 as the center of rotation. Therefore, there is no need to change the specifications of the mounting part 50 for each specification of the framework 300, 400, and a common mounting part 50 can be applied to multiple types of frameworks 300, 400 with different specifications.

[0035] Furthermore, since only one hole 22 is arranged on one base plate 21 of the mounting part 20, there is also only one hole on the side of the mounting part 50 (gusset) that is attached to the base plate 21. This allows the size of the mounting part 50 to be reduced. This configuration improves the transportation efficiency of the column members 51 and beam members 52 to which the mounting parts 50 are welded and that are carried into the construction site.

[0036] FIG. 5A shows another example of a frame 500 equipped with the architectural turnbuckle 100 according to this embodiment. The frame 500 is formed on a foundation 54, with a building framework consisting of three pillar members 51, 51a extending vertically in a front view and a beam member 52 spanning horizontally between the upper portions of the pillar members 51, 51a. The foundation members 54 are connected horizontally by a foundation beam 53, which prevents the pillar members 51, 51a from rotating or moving horizontally. In this embodiment, the foundation 54 and the foundation beam 53 are also made of reinforced concrete. As shown in FIG. 5A and other figures, the architectural turnbuckle 100 according to this embodiment is diagonally spanned between the pillar members 51, 51a and the beam member 52 as a diagonal brace, thereby increasing the resistance of the frame 500 to external forces such as earthquakes and typhoons. In the illustrated example, an architectural turnbuckle 100 is diagonally spanned between an attachment portion 50a fixed by welding or the like to the bottom of the pillar member 51 on the left side of the figure and an attachment portion 50a fixed to the upper end of the pillar member 51a in the center of the figure. Similarly, an architectural turnbuckle 100 is diagonally spanned between an attachment portion 50a fixed by welding or the like to the bottom of the pillar member 51 on the right side of the figure and an attachment portion 50a fixed to the upper end of the pillar member 51a in the center of the figure. Two architectural turnbuckles 100 are attached to the frame 500 with appropriate tension by an operator adjusting the rotation of the turnbuckle body 1. In the example shown in FIG. 5A, the horizontal distance between the pillar members 51, 51a is shorter than in FIG. 3A, so that the same number of architectural turnbuckles 100 as in FIG. 3A can be used to further increase the frame 500's resistance to external forces.

[0037] FIG. 5B shows another example of a frame 600 equipped with the architectural turnbuckle 100 according to this embodiment. The frame 600 is a building framework formed by three pillar members 51, 51a extending vertically in a front view and two beam members 52 horizontally spanning the upper and lower portions of the pillar members 51, 51a. In this example, the foundation beam 53 shown in FIG. 5A is not used, and the lower end of the pillar member 51 is fixed to the foundation. As shown in FIG. 5B and other figures, the architectural turnbuckle 100 according to this embodiment is diagonally spanned across the pillar members 51, 51a and the beam member 52 to act as a diagonal brace, thereby increasing the resistance of the frame 600 to external forces such as earthquakes and typhoons. In the illustrated example, the architectural turnbuckle 100 is spanned diagonally between an attachment part 50a fixed by welding or the like to the lower portion of the pillar member 51 on the left side of the figure and an attachment part 50a fixed to the upper end of the pillar member 51a in the center of the figure. Similarly, an architectural turnbuckle 100 is diagonally bridged between an attachment part 50a fixed by welding or the like to the lower part of the pillar member 51 on the right side of the drawing, and an attachment part 50a fixed to the upper end part of the pillar member 51a in the center of the drawing. In the example shown in Fig. 5B, the horizontal distance between the pillar members 51, 51a is shorter than in Fig. 3B, and by using the same number of architectural turnbuckles 100 as in Fig. 3B, the resistance of the framework 500 to external forces is further increased.

[0038] As described above, this embodiment is a construction turnbuckle 100 including a turnbuckle body 1 whose longitudinal length is adjustable and a turnbuckle bolt 10 having connection portions 2 attached to both longitudinal ends of the turnbuckle body 1 and movable longitudinally by rotation about the central axis O of the turnbuckle body 1. Each turnbuckle bolt 10 has an attachment portion 20 provided on the opposite side of the turnbuckle body 1 in the longitudinal direction. The attachment portion 20 has a plurality of plate-like members (base plate portions 21) arranged approximately parallel to each other, and each plate-like member has a hole portion 22 for fastening to a mounting portion 50 on the timber frame side. By adopting this configuration, it is possible to reduce the occurrence of bending stress in the attachment portion 20 and the mounting portion 50 on the timber frame side. Therefore, the load on the high-strength bolts 31 and fastening nuts 32 that fasten the attachment portion 20 to the mounting portion 50 on the timber frame side is reduced, and the range of options for the high-strength bolts 31 and fastening nuts 32 can also be expanded.

[0039] In this embodiment, only one hole 22 is formed at approximately the same position in a plan view on each of the plate-like members arranged approximately parallel to one another. By adopting this configuration, the construction turnbuckle 100 can be attached to the mounting part 50 at any mounting angle with the hole 22 as the center of rotation. Therefore, there is no need to change the specifications of the mounting part 50 for each frame specification, and a common mounting part 50 can be used for multiple types of frames with different specifications. Furthermore, since only one hole 22 is formed on each base plate 21 of the mounting part 20, there is also only one hole on the mounting part 50 (gusset) attached to the base plate 21, allowing the mounting part 50 to be reduced in size. This configuration improves the transportation efficiency of column members 51 and beam members 52 to which mounting parts 50 are welded and transported to a construction site.

[0040] Moreover, in this embodiment, the mounting portion 20 of each turnbuckle bolt 10 has two plate-shaped members, each of which has a substantially rectangular cutout portion 23 at its base end, and the outer peripheral surface of the tip end (rod-shaped portion 2a) of the rod-shaped connecting portion 2 is fixed to the edge portion of the cutout portion 23 extending in the longitudinal direction of the architectural turnbuckle 100, and the two plate-shaped members are configured to be arranged at symmetrical positions in the up-down direction with respect to the central axis O. By adopting such a configuration, the round rod-shaped connecting portion 2 and the flat plate-shaped mounting portion 20, which are formed separately, can be easily fixed at symmetrical positions in the up-down direction with respect to the central axis O.

[0041] Although the present disclosure has been described based on various drawings and examples, it should be noted that those skilled in the art can easily make various modifications and alterations based on the present disclosure. Therefore, it should be noted that these modifications and alterations are included in the scope of the present invention. For example, the functions included in each component can be rearranged so as not to cause logical inconsistencies, and multiple components can be combined into one or divided. It should be understood that these modifications and alterations are also included in the scope of the present invention.

[0042] For example, in this embodiment, the base plate portions 21 of the mounting portion 20 are arranged so that two of them are substantially parallel to each other at the tip portion of the turnbuckle bolt 10, but this is not limited to this embodiment. Three or more base plate portions 21 may be arranged so that they are substantially parallel to each other at the tip portion of the turnbuckle bolt 10. In this case, it is preferable to configure the connecting portion 2 and the mounting portion 20 so that the respective centers of gravity are not offset in the thickness direction (vertical direction, Z direction) of the mounting portion 20. It is also preferable to configure the mounting portion 50 so that the respective centers of gravity are not offset in the thickness direction (vertical direction, Z direction) of the mounting portion 20 by arranging the mounting portion 50 in the space between the base plate portions 21. [Industrial Applicability]

[0043] The present disclosure can be employed as construction turnbuckles 100, 200 for reinforcing the frameworks 300, 400 of buildings, etc. [Explanation of symbols]

[0044] 1,101 Turnbuckle Body 1a,101a Grip part 1b, 101b Threaded cylinder 1c,101c female thread 2 Connection 2a Rod-shaped part (tip) 2b Male thread 10 turnbuckle bolts 11L Left-hand thread turnbuckle bolt 11R Right-hand Thread Turnbuckle Bolt 20 Mounting part 21 substrate portion (plate-shaped member) 22 Hole 23 Cutout 31 High-strength bolt 32 Fastening nut 50, 50a, 50b Mounting part 51,51a Column members 52 Beam member 53 Foundation beam 54 Foundation part 100,200 Construction turnbuckles 300,400,500,600 axis set O center axis W welded section

Claims

1. A turnbuckle body (1) for adjusting the length in the longitudinal direction; a turnbuckle bolt (10) having connection parts (2) attached to both longitudinal ends of the turnbuckle body part (1) and movable in the longitudinal direction by rotating around the central axis (O) of the turnbuckle body part (1); A construction turnbuckle (100) that is provided so as to span diagonally across a framework that is the framework of a building, Each of the turnbuckle bolts (10) has an attachment portion (20) provided on the opposite side of the turnbuckle body portion (1) in the longitudinal direction, and the attachment portion (20) has two plate-like members arranged so as to be approximately parallel to each other, and each of the plate-like members has a hole portion (22) for fixing to an attachment portion (50) on the frame side, The turnbuckle body (1) has a hollow gripping portion having an outer diameter larger than that of the connecting portion (2), Each of the plate-like members has a substantially rectangular cutout portion (23) at its base end, and the outer peripheral surface of the tip of the rod-shaped connecting portion (2) is directly fixed by welding to an edge portion of the cutout portion (23) extending in the longitudinal direction of the construction turnbuckle (100), The two plate-shaped members are arranged in symmetrical positions in the vertical direction with respect to the central axis (O) of the connection portion (2) of each turnbuckle bolt (10).

2. The construction turnbuckle (100) according to claim 1, wherein only one hole (22) is formed at approximately the same position in a plan view on each of the plate-like members arranged to be approximately parallel.

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