JP7474471B2 - Rod support - Google Patents

Description

The present invention relates to a rod support.

There is a known support for a hanging bolt that is used to hang a hanging bolt from a ceiling slab or the like and to secure an anti-sway bolt (auxiliary bolt) to the hanging bolt (see, for example, Patent Document 1). The support for a hanging bolt has a structure that positions a metal fitting at any height relative to the hanging bolt and supports the anti-sway bolt at any angle.

Patent No. 5657093

When using the above-mentioned suspension bolt support, the worker must hold the suspension bolt support, which holds the suspension bolt and the anti-sway bolt, in one hand while tightening the bolt with the other hand, and this task itself requires some getting used to. Therefore, there is a demand for a support that can fix the anti-sway bolt to the suspension bolt with a simple operation.

The rod-shaped material support device of the present invention is used to fix a second rod-shaped material to a first rod-shaped material and comprises a first support, a second support arranged opposite the first support, fastening bolts inserted into the through holes of the first support and the second support for fastening the first support and the second support with the first rod-shaped material and the second rod-shaped material sandwiched between them , and an auxiliary plate for pressing the first rod-shaped material against the first support to temporarily secure the first support so that it does not fall off from the first rod-shaped material .

According to the present invention, a rod-shaped material such as a vibration prevention bolt can be fixed to a rod-shaped material such as a hanging bolt with a simple operation.

FIG. 1 is a front view showing a state in which a hanging bolt and a vibration prevention bolt are attached to a ceiling slab using a hanging bolt support device according to this embodiment. FIG. 2 is a side view showing the suspension bolt support of FIG. FIG. 3 is a plan view showing the suspension bolt support of FIG. FIG. 4 is a cross-sectional view taken along line AA of FIG. FIG. 5 is a perspective view showing a state in which the suspension bolt support of FIG. 1 is temporarily attached to a suspension bolt. FIG. 6 is a side view of the suspension bolt support of FIG. FIG. 7 is a diagram for explaining a method of attaching the anti-sway bolt to the suspension bolt support. FIG. 8 is a perspective view showing a state in which the anti-vibration bolt is fixed to the hanging bolt using the hanging bolt support.

Figure 1 shows an example of the use of the suspension bolt support 10 according to this embodiment. In this example, a support member R is suspended from a ceiling slab T via a suspension bolt B. A rack or the like is installed on this support member R. A vibration prevention bolt S used to prevent the suspension bolt B from vibrating is attached to the ceiling slab T via a metal fitting or the like. The suspension bolt support 10 is attached to the intersection of the vibration prevention bolt S, which is arranged diagonally with respect to the suspension bolt B, and the suspension bolt B, and is used to fix them. Note that the applications in which the suspension bolt support 10 is used are not limited to the above, and it can be used for various applications in which the positional relationship of two fully threaded bolts is fixed. For example, in Figure 1, the suspension bolt support 10 according to this embodiment is placed at the intersection of two vibration prevention bolts S, and can be used to fix them.

As shown in Figures 2 to 4, the suspension bolt support 10 has a first support 20, a second support 30 arranged opposite the first support 20, and a fastening bolt 50 that fastens the first support 20 and the second support 30.

The first support 20 is made of metal and is configured in a substantially isosceles triangle shape. Specifically, the first support 20 has a first support body 21. The first support body 21 has a substantially isosceles triangle-shaped first plate 22, a first holding piece 23 provided perpendicular to the first plate 22 on the periphery of the first plate 22 corresponding to the base of the isosceles triangle, and a first pressure piece 24 provided at an angle to the first plate 22 on the periphery of the first plate 22 corresponding to the two equal sides of the isosceles triangle. Hereinafter, the surface of the first plate 22 on which the first holding piece 23 and the first pressure piece 24 are provided will be referred to as the back surface, and the opposite surface will be referred to as the front surface.

A hole 22a into which the fastening bolt 50 is inserted is provided at approximately the center of the first plate 22. The hole 22a is formed in a rectangular shape that engages with the outer periphery of the rectangular neck portion of the fastening bolt 50.

Between both side edges of the first holding piece 23 and both side edges of the first crimping piece 24, there is a gap slightly larger than the outer diameter of the hanging bolt B. The hanging bolt B is passed through this gap. The auxiliary plate 40 described later is placed in a position where it contacts the tip edge of the first holding piece 23 and the tip edge of the first crimping piece 24 or in a position separated by a small gap. The space defined by the first plate body 22, the first holding piece 23, both side edges of the first crimping piece 24, and the auxiliary plate 40 functions as a storage section Q1 that stores the hanging bolt B. The height of this storage section Q1, that is, the height from the back surface of the first plate body 22 to the tip edges of the first holding piece 23 and the first crimping piece 24, is shorter than the diameter of the hanging bolt B. On the back surface of the first plate body 22, a plurality of first protrusions 22b that engage with the thread groove of the hanging bolt B stored in the storage section Q1 are distributed along the first holding piece 23.

The second support 30 has the same structure as the first support 20, and is typically composed of the same parts. Therefore, a detailed description of the second support 30 will be omitted. Like the first support 20, the second support 30 has a second support body 31. The second support body 31 has a second plate 32, a second holding piece 33, and a second crimping piece 34. The second plate 32 has a hole 32a into which the fastening bolt 50 is inserted, and a second protrusion 32b is provided on the back surface.

By constructing the first support 20 and the second support 30 from the same part, costs can be reduced, and either part can be used as the first support 20 during the installation work of the suspension bolt support 10. This avoids the need to redo the installation work due to mistaking the first support 20 for the second support 30, which also contributes to improving workability. Note that the second support 30 does not have to be the same part as the first support 20.

One feature of the suspension bolt support 10 according to this embodiment is that the suspension bolt support 10 can be temporarily fixed to the suspension bolt B. To achieve this, the suspension bolt support 10 is provided with a flexible auxiliary plate 40.

The auxiliary plate 40 is made of elastic transparent resin and is configured as a circular plate larger than the first support 20. The auxiliary plate 40 has a through hole into which the fastening bolt 50 is inserted. At least the inner peripheral edge of the through hole is thinner than the thread groove of the fastening bolt 50, and the inner peripheral edge of this through hole engages with the thread groove of the fastening bolt 50, thereby engaging (screwing) the auxiliary plate 40 with the fastening bolt 50.

The height of the accommodation section Q1 is lower than the diameter of the hanging bolt B, and the hanging bolt B accommodated in the accommodation section Q1 protrudes from the tip edge of the first holding piece 23 and the first crimping piece 24 to the outside of the accommodation section Q1. Therefore, the auxiliary plate 40 arranged at a position where it abuts against the tip edge of the first holding piece 23 and the first crimping piece 24 is pressed in a direction away from the first support 20 by the hanging bolt B. Since the auxiliary plate 40 is engaged with the fastening bolt 50 as described above, even if the auxiliary plate 40 is pressed by the hanging bolt B, it does not move up and down along the fastening bolt 50, but curves along the outer circumferential surface of the hanging bolt B. At this time, the auxiliary plate 40 presses the hanging bolt B against the back surface of the first support 20 by its elastic force. As a result, the state in which the thread groove of the hanging bolt B is engaged with the first protrusion 22b provided on the back surface of the first support 20 can be maintained, and the first support 20 can be temporarily fixed to the hanging bolt B.

In addition, because the auxiliary plate 40 is transparent, the worker can temporarily fasten the first support 20 to the hanging bolt B while checking the marker indicating the installation position attached to the hanging bolt B. This contributes to improving workability. In addition, from the viewpoint of temporarily fastening the first support 20 to the hanging bolt B, it is sufficient that the auxiliary plate 40 has a size that allows at least a portion of it to cover the storage section Q1.

By marking the scale on the auxiliary plate 40, the worker can see at a glance the angle of the anti-sway bolt S relative to the hanging bolt B. Also, guide lines for the hanging bolt B and the anti-sway bolt S may be marked in advance on the auxiliary plate 40. This allows the worker to position the hanging bolt B and the anti-sway bolt S along the guide lines, allowing the worker to perform the work efficiently.

The suspension bolt support 10 configured in this manner is used as shown in Figures 5 to 8. Figures 5 and 6 show the suspension bolt support 10 temporarily attached to the suspension bolt B. Figure 7 is a supplementary explanatory diagram for explaining the method of attaching the anti-sway bolt S to the suspension bolt support 10. Figure 8 shows the suspension bolt support 10 used to fix the anti-sway bolt S to the suspension bolt B.

Typically, the suspension bolt support 10 is used in the state shown in FIG. 2, that is, in the state in which the suspension bolt support 10 is assembled and the auxiliary plate 40 is in contact with the leading edges of the first holding piece 23 and the first crimping piece 24. The worker inserts the suspension bolt B between the first holding piece 23 and the auxiliary plate 40. At this time, the auxiliary plate 40 extends outward from the leading edge of the first holding piece 23, so it also functions as a guide plate that guides the suspension bolt B between the first holding piece 23 and the auxiliary plate 40. The worker moves the suspension bolt B along the auxiliary plate 40 to the leading edge of the first holding piece 23 and pushes it between the leading edges of the auxiliary plate 40 and the first holding piece 23, causing the flexible auxiliary plate 40 to bend slightly, which causes the gap between the auxiliary plate 40 and the first holding piece 23 to be pushed wider, allowing the suspension bolt B to be accommodated in the accommodation section Q1.

As shown in FIG. 6, the circumferential surface of the hanging bolt B accommodated in the accommodation portion Q1 is surrounded on all sides by the first plate body 22, the first holding piece 23, the first crimping piece 24, and the auxiliary plate 40. This makes it possible to restrict the radial movement of the hanging bolt B of the hanging bolt support 10 relative to the hanging bolt B. In addition, by engaging the first protrusion 22b with the thread groove of the hanging bolt B, it is possible to restrict the axial movement of the hanging bolt B of the first support 20 relative to the hanging bolt B. The engagement state between the thread groove of the hanging bolt B and the first protrusion 22b is maintained by the auxiliary plate 40 pressing the first protrusion 22b provided on the back surface of the first support 20 against the thread groove. Since the auxiliary plate 40 is larger than the first support 20, the contact surface in contact with the hanging bolt B can be made wider, and the pressing force can be increased. In addition, by configuring the auxiliary plate 40 as a circular plate, the task of adjusting the orientation of the auxiliary plate 40 relative to the first support 20 is not required, improving workability. In this way, simply by storing the hanging bolt B in the storage portion Q1 of the hanging bolt support 10, the axial and radial movement of the hanging bolt B of the hanging bolt support 10 relative to the hanging bolt B can be restricted, and the hanging bolt support 10 can be temporarily fixed to the hanging bolt B.

The temporary fastening state can be released by a simple operation by the worker, such as loosening the auxiliary plate 40 engaged with the fastening bolt 50 (moving it in a direction away from the first support 20), spreading the part of the auxiliary plate 40 pressing against the hanging bolt B with the fingers, or moving the hanging bolt support 10 in a direction away from the hanging bolt B. For example, when it is desired to adjust the position of the hanging bolt support 10, the worker can move the hanging bolt support 10 up and down along the axial direction of the hanging bolt B while pulling the first support 20 in a direction away from the hanging bolt B. This moving operation is a simple operation that can be performed with one hand, improving the ease of operation by the worker.

The above temporary fastening procedure is premised on the premise that the auxiliary plate 40 is flexible. However, from the viewpoint of temporarily fastening the suspension bolt support 10 to the suspension bolt B, the auxiliary plate 40 does not necessarily have to be flexible. Below, the temporary fastening procedure when using a suspension bolt support 10 equipped with an inflexible auxiliary plate 40 made of hard resin or metal is described.

The suspension bolt support 10 is used in a state as shown in FIG. 2, that is, in a state where the auxiliary plate 40 is not in contact with the leading edges of the first retaining piece 23 and the first crimping piece 24, but in a state where the auxiliary plate 40 is disposed at a position spaced apart from the leading edges of the first retaining piece 23 and the first crimping piece 24 by a distance equal to or greater than the diameter of the suspension bolt B. The worker inserts the suspension bolt B from the gap between the leading edge of the first retaining piece 23 and the auxiliary plate 40, and places it in a groove defined by both side edges of the first plate body 22, the first retaining piece 23, and the first crimping piece 24. The first protrusion 22b is engaged with the thread groove of the suspension bolt B housed in the groove. Next, the auxiliary plate 40 is moved along the fastening bolt 50 and brought into contact with the suspension bolt B. As a result, even if the auxiliary plate 40 does not have flexibility, it is possible to maintain at least the state in which the first protrusion 22b is engaged with the thread groove of the fastening bolt 50. This makes it possible to restrict the movement of the suspension bolt support 10 relative to the suspension bolt B in the axial and radial directions of the suspension bolt B, and to temporarily secure the suspension bolt support 10 to the suspension bolt B.

After the suspension bolt support 10 is temporarily attached to the suspension bolt B, the work is as follows. That is, as shown in FIG. 7, the worker places the anti-sway bolt S in the accommodation portion Q2 of the second support 30 from between the auxiliary plate 40 and the leading edge of the second holding piece 33 and the second crimping piece 34, and temporarily tightens the nut 60. "Temporarily tightening" here means tightening the nut 60 to an extent that the engagement state between the thread groove of the anti-sway bolt S accommodated in the accommodation portion Q2 and the second protrusion portion 32b can be maintained.

With the nut 60 temporarily fastened, the anti-sway bolt S will not fall off the second support 30, and the anti-sway bolt S can be temporarily fastened to the second support 30. The worker holds the second support 30 in his/her hand, adjusts the angle of the anti-sway bolt S relative to the hanging bolt B, and then fully fastens the nut 60. By fully fastening the nut 60, the hanging bolt B and the anti-sway bolt S can be sandwiched and fixed between the first support 20 and the second support 30, as shown in FIG. 8. The fixing force at this time is very strong because not only the hanging bolt B and the anti-sway bolt S sandwiched between the first support 20 and the second support 30 are pressed against each other, but also the holding pieces 23, 33 and the pressing pieces 24, 34 act to press the entire parts against each other.

According to the suspension bolt support 10 described above, the auxiliary plate 40 allows the suspension bolt support 10 to be temporarily fixed to the suspension bolt B. The configuration that realizes this temporary fixing is very simple, and the manufacturing cost is also low. In addition, since the suspension bolt B can be temporarily fixed with a simple operation, there is no need to perform dangerous and complicated work on an unstable stepladder or ladder when temporarily fixing, and the work can be performed safely.

One of the features of the suspension bolt support 10 according to this embodiment is that it can be temporarily fixed to the suspension bolt B. Therefore, the object to be fixed to the suspension bolt B using the suspension bolt support 10 is not limited to the anti-vibration bolt S. The object to be fixed to the suspension bolt B can be a rod-shaped material such as a fully threaded bolt, round bar, or square bar.

In the hanging bolt support 10 according to the present embodiment, the auxiliary plate 40 is inserted into the fastening bolt 50, but as long as the engagement between the thread groove of the hanging bolt B housed in the groove of the first support 20 and the first protrusion 22b on the back surface of the first support 20 can be maintained, the position at which the auxiliary plate 40 is attached is not limited to this. For example, the auxiliary plate 40 can be attached to the first support 20, for example, the inner surface of the first crimping piece 24, the tip edge of the first crimping piece 24, or the back surface of the first plate body 22. The configuration in which the auxiliary plate 40 is inserted into the fastening bolt 50 requires fewer assembly steps than the above configuration, so that a reduction in manufacturing costs can be expected. In addition, even if the auxiliary plate 40 is damaged before work due to some factor, only the auxiliary plate 40 needs to be replaced, making it easy to use.

In addition, in the suspension bolt support 10 according to this embodiment, the flexible auxiliary plate 40 functions as a pressing member that presses the first protrusion 22b against the thread groove of the suspension bolt B to maintain the engagement between the thread groove of the suspension bolt B and the first protrusion 22b of the first support 20. If the suspension bolt support 10 can be temporarily fixed to the suspension bolt B by simply pressing the first support 20 against the suspension bolt B with the flexible auxiliary plate 40, the suspension bolt support 10 does not need to have the first protrusion 22b. Furthermore, if temporary fixing can be achieved by pressing, the suspension bolt support according to this embodiment can be used as a rod-shaped material support that can be temporarily fixed to rod-shaped materials such as round steel and square steel that do not have a thread groove. Even if the auxiliary plate 40 does not have flexibility, the rod-shaped material may be pressed toward the first support 20 by, for example, screwing the auxiliary plate 40 onto the fastening bolt 50 and tightening the auxiliary plate 40.

The suspension bolt support 10 according to this embodiment can be used to secure multiple fully threaded bolts (rod-shaped materials) to the suspension bolt B. For example, when used to secure two fully threaded bolts arranged in different directions to the suspension bolt B, the suspension bolt support 10 may further include a third support arranged on the opposite side of the first support 20 across the second support 30. In this way, the suspension bolt support may include a number of supports corresponding to the number of rod-shaped materials to be secured to the suspension bolt.

The present invention is not limited to the above-described embodiments, and can be modified in various ways in the implementation stage without departing from the gist of the invention. The embodiments may also be implemented in appropriate combination, in which case the combined effects can be obtained. Furthermore, the above-described embodiments include various inventions, and various inventions can be extracted by combinations selected from the multiple constituent elements disclosed. For example, if the problem can be solved and an effect can be obtained even if some constituent elements are deleted from all the constituent elements shown in the embodiments, the configuration from which these constituent elements are deleted can be extracted as an invention.

10...support for hanging bolt, 20...first support, 21...first support body, 22...first plate, 22a...hole, 22b...first protrusion, 23...first retaining piece, 24...first crimping piece, 30...second support, 31...second support body, 32...second plate, 32a...hole, 32b...second protrusion, 33...second retaining piece, 34...second crimping piece, 40...auxiliary plate, 50...fastening bolt, 60...nut, B...hanging bolt, S...anti-vibration bolt (fully threaded bolt), Q1, Q2...accommodating part.

Claims (12)

A rod support for fixing a second rod to a first rod, comprising:
A first support;
A second support disposed opposite the first support;
a fastening bolt that is inserted into each of the through holes of the first support body and the second support body, and fastens the first support body and the second support body with the first bar-shaped material and the second bar-shaped material sandwiched therebetween;
an auxiliary plate for pressing the first rod against the first support to temporarily fix the first support so that the first rod does not fall off,
The auxiliary plate is flexible, and is a support for a rod-shaped material. A rod support for fixing a second rod to a first rod, comprising:
A first support;
A second support disposed opposite the first support;
a fastening bolt that is inserted into each of the through holes of the first support body and the second support body, and fastens the first support body and the second support body with the first bar-shaped material and the second bar-shaped material sandwiched therebetween;
an auxiliary plate for pressing the first rod against the first support to temporarily fix the first support so that the first rod does not fall off,
The auxiliary plate has a through hole into which the fastening bolt is inserted, and the through hole of the auxiliary plate has an inner peripheral edge that engages with the thread groove of the fastening bolt . A rod support for fixing a second rod to a first rod, comprising:
A first support;
A second support disposed opposite the first support;
a fastening bolt that is inserted into each of the through holes of the first support body and the second support body, and fastens the first support body and the second support body with the first bar-shaped material and the second bar-shaped material sandwiched therebetween;
an auxiliary plate for pressing the first rod against the first support to temporarily fix the first support so that the first rod does not fall off,
The auxiliary plate is thinner than the thread groove of the fastening bolt . A rod support for fixing a second rod to a first rod, comprising:
A first support;
A second support disposed opposite the first support;
a fastening bolt that is inserted into each of the through holes of the first support body and the second support body, and fastens the first support body and the second support body with the first bar-shaped material and the second bar-shaped material sandwiched therebetween;
an auxiliary plate for pressing the first rod against the first support to temporarily fix the first support so that the first rod does not fall off,
The support for a rod-shaped material , wherein the auxiliary plate is transparent . a protrusion that engages with the first rod-shaped material is provided on an inner surface of the first support;
5. The rod support according to claim 1, wherein the auxiliary plate maintains an engagement state between the first rod and the protrusion, and temporarily fastens the first support body to the first rod. 5. The rod support according to claim 1, 3 or 4, wherein the auxiliary plate has a through hole into which the fastening bolt is inserted. 7. The rod support according to claim 1 , wherein the auxiliary plate has a scale or guide lines for guiding the fixing angle of the second rod relative to the first rod. 8. A support for a bar according to claim 1 , wherein the second support is configured identically to the first support. 9. The rod support according to claim 1, wherein the auxiliary plate has a size sufficient to cover the entire first support or the entire second support. 5. The rod support according to claim 1, wherein the temporarily fixed state can be released by spreading apart the portion of the auxiliary plate that presses the first rod against the first support with fingers. A rod-shaped material support device as described in any one of claims 1 to 4, wherein the auxiliary plate pressing the first rod-shaped material against the first support body curves along the outer peripheral surface of the first rod-shaped material, thereby pressing the first rod-shaped material against the first support body by its elastic force. The first support has a first holding piece,
the auxiliary plate is disposed at a position in contact with a tip edge of the first holding piece or at a position separated by a small gap to form a space for accommodating the first rod-shaped material;
A support device for rod-shaped material as described in any one of claims 1 to 4, wherein by pushing the first rod-shaped material between the auxiliary plate and the tip edge of the first retaining piece, the flexible auxiliary plate bends slightly, thereby expanding the space between the auxiliary plate and the first retaining piece and accommodating the first rod-shaped material in the space.