JP2021143754A - Support tool for hanger bolt and support tool for rod-like member - Google Patents

Abstract

To provide a support tool for a hanger bolt having a simple structure and capable of being temporarily fixed to the hanger bolt with a simple operation.SOLUTION: A support tool 10 for a hanger bolt is a metal fitting for fixing a rod-like member S to a hanger bolt B intersecting thereto. The support tool 10 for the hanger bolt includes: a first support 20; a second support 30 disposed in opposition to the first support; and a fastening bolt 50 inserted to through holes of the first support and the second support, and fastening the first support and the second support in a manner of holding the hanger bolt and the rod-like member therebetween. A projecting portion 22b engaged with a screw groove of the hanger bolt is disposed on an inner surface of the first support, and an auxiliary plate 40 for keeping an engagement state of the screw groove of the hanger bolt and the projecting portion, and temporarily fixing the first support to the hanger bolt, is inserted to the fastening bolt.SELECTED DRAWING: Figure 1

Description

The present invention relates to a support for hanging bolts and a support for rod-shaped materials.

A support for a suspension bolt for suspending a suspension bolt from a ceiling slab or the like and fixing a steady rest bolt (auxiliary bolt) to the suspension bolt is known (see, for example, Patent Document 1). The suspension bolt support has a structure in which the metal fitting is positioned at an arbitrary height position with respect to the suspension bolt and the steady rest bolt is supported at an arbitrary angle.

Japanese Patent No. 5657093

In the work using the above-mentioned suspension bolt support, the operator needs to hold the suspension bolt support with one hand sandwiching the suspension bolt and the steady rest bolt, and tighten the bolt with the other hand. , It was necessary to get used to this work itself. Therefore, there is a demand for a support that can fix the steady rest bolt to the hanging bolt with a simple operation.

The support for a hanging bolt according to the present invention is a metal fitting for fixing a rod-shaped member intersecting the hanging bolt to the hanging bolt. The suspension bolt support is inserted into the through holes of the first support, the second support arranged to face the first support, the first support, and the second support, respectively, and the first support is provided. It is provided with a hanging bolt and a fastening bolt for fastening the body and the second support with a rod-shaped member sandwiched between them. A protrusion that engages with the screw groove of the hanging bolt is provided on the inner surface of the first support, and the engaged state between the screw groove of the hanging bolt and the protrusion is maintained, and the first support is attached to the hanging bolt. An auxiliary plate for temporary fixing is inserted into the fastening bolt.

According to the present invention, a rod-shaped material such as a steady rest bolt can be fixed to a rod-shaped material such as a hanging bolt by a simple operation.

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

FIG. 1 shows an example of a usage state of the suspension bolt support 10 according to the present embodiment. In this example, the support member R is suspended and supported by the ceiling slab T via the suspension bolt B. A rack or the like is installed on the support member R. A steady rest bolt S used for steady rest of the suspension bolt B is attached to the ceiling slab T via a metal fitting or the like. The suspension bolt support 10 is attached to a portion where the steady rest bolt S and the suspension bolt B, which are arranged obliquely with respect to the suspension bolt B, intersect with each other, and is used for fixing them. The application in which the suspension bolt support 10 is used is not limited to the above, and can be used in various applications for fixing the positional relationship of the two all-screw bolts. For example, in FIG. 1, the suspension bolt support 10 according to the present embodiment can be arranged at a position where two steady rest bolts S intersect, and can be used for fixing them.

As shown in FIGS. 2 to 4, the suspension bolt support 10 includes a first support 20, a second support 30 arranged to face the first support 20, a first support 20, and a second support. It has a fastening bolt 50 for fastening the body 30 and the body 30.

The first support 20 is made of metal and is formed in a substantially isosceles triangle shape. Specifically, the first support 20 has a first support body 21. The first support main body 21 is provided perpendicular to the first plate 22 on the peripheral edge of the first plate 22 having a substantially isosceles triangle shape and the first plate 22 corresponding to the base of the isosceles triangle. It has a first holding piece 23 and a first crimping piece 24 provided on the peripheral edge of the first plate 22 corresponding to two isosceles triangles so as to be inclined with respect to the first plate 22. Hereinafter, the surface on the side where the first holding piece 23 and the first crimping piece 24 of the first plate body 22 are provided is set as the back surface, and the surface on the opposite side is used as the front surface to distinguish between them.

A hole 22a into which the fastening bolt 50 is inserted is opened substantially in the center of the first plate body 22. The hole portion 22a is formed in a rectangular shape that engages with the outer circumference of the rectangular neck portion of the fastening bolt 50.

A gap slightly larger than the outer diameter of the hanging bolt B is provided between both side edges of the first holding piece 23 and both side edges of the first crimping piece 24. The suspension bolt B is passed through this gap. The auxiliary plate 40, which will be described later, is arranged at a position where it comes into contact with the tip edge of the first holding piece 23 and the tip edge of the first crimping piece 24, or at a position separated by a slight gap. The space defined by the side edges of the first plate body 22, the first holding piece 23, the first crimping piece 24, and the auxiliary plate 40 functions as an accommodating portion Q1 for accommodating the suspension bolt B. The height of the accommodating portion 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 screw grooves of the hanging bolts B accommodated in the accommodating portion Q1 are dispersedly arranged 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, 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 main body 31 has a second plate body 32, a second holding piece 33, and a second crimping piece 34. A hole 32a into which the fastening bolt 50 is inserted is opened in the second plate body 32, and a second protrusion 32b is provided on the back surface thereof.

By configuring the first support 20 and the second support 30 with the same parts, the cost can be reduced, and either part may be used as the first support 20 in the mounting work of the suspension bolt support tool 10. Therefore, it is possible to avoid re-installation due to the first support 20 and the second support 30 being mistaken for each other, which also contributes to the improvement of workability. The second support 30 does not have to be the same component as the first support 20.

One of the features of the suspension bolt support 10 according to the present embodiment is that the suspension bolt support 10 can be temporarily fixed to the suspension bolt B. To achieve this, the hanging bolt support 10 includes a flexible auxiliary plate 40.

The auxiliary plate 40 is made of an elastic transparent resin and is formed of 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 portion of the through hole is thinner than the thread groove of the fastening bolt 50, and the inner peripheral edge of the through hole engages with the thread groove of the fastening bolt 50 so that the auxiliary plate 40 can be attached to the fastening bolt 50. It is locked (screwed).

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

Since the auxiliary plate 40 is transparent, the operator can temporarily fix the first support 20 to the suspension bolt B while checking the marker attached to the suspension bolt B to indicate the mounting position. .. This contributes to the improvement of workability. Further, from the viewpoint of temporarily fixing the first support 20 to the suspension bolt B, the auxiliary plate 40 may have a size such that at least a part thereof can cover the accommodating portion Q1.

By marking the scale on the auxiliary plate 40, the operator can see at a glance the angle of the steady rest bolt S with respect to the suspension bolt B. Further, the guide wire for the suspension bolt B and the guide wire for the steady rest bolt S may be previously indicated on the auxiliary plate 40. As a result, the operator only needs to arrange the suspension bolt B and the steady rest bolt S along the guide line, and the work can be performed efficiently.

The suspension bolt support 10 configured in this way is used as shown in FIGS. 5 to 8. Note that FIGS. 5 and 6 show a state in which the suspension bolt support 10 is temporarily fixed to the suspension bolt B. FIG. 7 is a supplementary explanatory view for explaining a method of attaching the steady rest bolt S to the support bolt 10 for suspension bolts. FIG. 8 shows a state in which the steady rest bolt S is fixed to the suspension bolt B by using the suspension bolt support tool 10.

Typically, the suspension bolt support 10 is in a state as shown in FIG. 2, that is, in a state in which the suspension bolt support 10 is assembled, and is a state in which the first holding piece 23 and the first crimping piece 24 are assembled. It is used in a state where the auxiliary plate 40 is in contact with the tip edge. The operator inserts the suspension bolt B from between the first holding piece 23 and the auxiliary plate 40. At this time, since the auxiliary plate 40 extends outward from the tip edge of the first holding piece 23, the guide plate guides the suspension bolt B between the first holding piece 23 and the auxiliary plate 40. Also works as. The operator has flexibility by moving the hanging bolt B along the auxiliary plate 40 to the tip edge of the first holding piece 23 and pushing it between the auxiliary plate 40 and the tip edge of the first holding piece 23. The auxiliary plate 40 is slightly curved, whereby the space between the auxiliary plate 40 and the first holding piece 23 is expanded, and the suspension bolt B can be accommodated in the accommodating portion Q1.

As shown in FIG. 6, the peripheral surface of the hanging bolt B housed in the housing portion Q1 is surrounded from all sides by the first plate body 22, the first holding piece 23, the first crimping piece 24, and the auxiliary plate 40. Thereby, the movement of the suspension bolt B of the suspension bolt support 10 with respect to the suspension bolt B in the radial direction can be restricted. Further, by engaging the first protrusion 22b with the screw groove of the suspension bolt B, it is possible to restrict the axial movement of the suspension bolt B of the first support 20 with respect to the suspension bolt B. The engaged state between the screw groove of the hanging bolt B and the first protrusion 22b is maintained by pressing the first protrusion 22b provided on the back surface of the first support 20 against the screw groove by the auxiliary plate 40. NS. Since the auxiliary plate 40 is larger than the first support 20, the contact surface in contact with the suspension bolt B can be widened, and the pressing force can be increased. Further, by forming the auxiliary plate 40 into a circular plate, it is not necessary to adjust the orientation of the auxiliary plate 40 with respect to the first support 20, so that workability can be improved. In this way, simply by accommodating the suspension bolt B in the accommodating portion Q1 of the suspension bolt support 10, the movement of the suspension bolt B of the suspension bolt support 10 in the axial direction and the outer diameter direction with respect to the suspension bolt B is restricted. The suspension bolt support 10 can be temporarily fixed to the suspension bolt B.

In the temporarily fixed state, the auxiliary plate 40 locked to the fastening bolt 50 is loosened (moved in a direction away from the first support 20), and the portion of the auxiliary plate 40 pressing the suspension bolt B is spread with a finger. The suspension bolt support 10 can be released by a simple operation by the operator, such as moving the first support 20 in a direction away from the suspension bolt B. For example, when it is desired to adjust the position of the suspension bolt support 10, the operator pulls the suspension bolt support 10 in the direction in which the first support 20 separates from the suspension bolt B in the axial direction of the suspension bolt B. Can be moved up and down along. This movement operation is a simple operation that can be performed with one hand, and improves workability by the operator.

The temporary fixing work procedure is based on the premise that the auxiliary plate 40 has flexibility. However, the auxiliary plate 40 does not necessarily have to have flexibility from the viewpoint of temporarily fixing the suspension bolt support 10 to the suspension bolt B. Hereinafter, a procedure for temporarily fixing the suspension bolt support 10 provided with the inflexible auxiliary plate 40 made of hard resin or metal will be described.

The suspension bolt support 10 is not in a state as shown in FIG. 2, that is, a state in which the auxiliary plate 40 is in contact with the tip edges of the first holding piece 23 and the first crimping piece 24, and the auxiliary plate 40 is the first. It is used in a state where it is arranged at a position separated from the tip edges of the holding piece 23 and the first crimping piece 24 by a distance equal to or larger than the diameter of the hanging bolt B. The operator inserts the hanging bolt B through the gap between the tip edge of the first holding piece 23 and the auxiliary plate 40, and inserts the hanging bolt B at both side edges of the first plate body 22, the first holding piece 23, and the first crimping piece 24. Contain in the specified ditch. The first protrusion 22b is engaged with the screw groove of the hanging 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 is not flexible, 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. Thereby, the movement of the suspension bolt support 10 with respect to the suspension bolt B in the axial direction and the outer diameter direction can be restricted, and the suspension bolt support 10 can be temporarily fixed to the suspension bolt B. can.

The work after temporarily fixing the suspension bolt support 10 to the suspension bolt B is as follows. That is, as shown in FIG. 7, the operator applies the steady rest bolt S from between the auxiliary plate 40 and the tip edge of the second holding piece 33 and the second crimping piece 34 to the accommodating portion Q2 of the second support 30. Contain and temporarily tighten the nut 60. Temporary tightening here means tightening the nut 60 to such an extent that the thread groove of the steady rest bolt S housed in the housing portion Q2 and the second protrusion 32b can be maintained in an engaged state.

With the nut 60 temporarily tightened, the steady rest bolt S does not fall off from the second support 30, and the steady rest bolt S can be temporarily fastened to the second support 30. The operator holds the second support 30 in his hand, adjusts the angle of the steady rest bolt S with respect to the suspension bolt B, and then finally tightens the nut 60. By fully tightening the nut 60, as shown in FIG. 8, the suspension bolt B and the steady rest bolt S can be sandwiched and fixed between the first support 20 and the second support 30. The fixing force at this time is not only that the suspension bolt B and the steady rest bolt S sandwiched between the first support 20 and the second support 30 are crimped to each other, but also the holding pieces 23, 33 and the crimping piece 24, 34 is also acting and the whole is crimped to each other, so it is very strong.

According to the suspension bolt support 10 described above, the presence of the auxiliary plate 40 allows the suspension bolt support 10 to be temporarily fixed to the suspension bolt B. The configuration for realizing this temporary fixing is very simple, and the manufacturing cost is low. Further, since the suspension bolt B can be temporarily fixed by a simple operation, it is not necessary to perform dangerous and complicated work on an unstable stepladder or ladder, and the work can be performed safely. ..

One of the features of the suspension bolt support 10 according to the present embodiment is that it can be temporarily fixed to the suspension bolt B. Therefore, the object to be fixed to the suspension bolt B by using the suspension bolt support 10 is not limited to the steady rest bolt S. The target to be fixed to the hanging bolt B can be a bar-shaped material such as a full screw bolt, round steel, or square steel.

In the suspension bolt support 10 according to the present embodiment, the auxiliary plate 40 is inserted into the fastening bolt 50, but the screw groove of the suspension bolt B housed in the groove of the first support 20 and the first one. The position where the auxiliary plate 40 is attached is not limited to this as long as the engaged state with the first protrusion 22b on the back surface of the support 20 can be maintained. For example, the auxiliary plate 40 may 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 22. Since the configuration in which the auxiliary plate 40 is inserted into the fastening bolt 50 requires less assembly man-hours than the above configuration, a reduction in manufacturing cost can be expected. Further, even if the auxiliary plate 40 is damaged before the work for some reason, only the auxiliary plate 40 needs to be replaced, which is easy to use.

Further, in the suspension bolt support 10 according to the present embodiment, the flexible auxiliary plate 40 maintains the engaged state between the screw groove of the suspension bolt B and the first protrusion 22b of the first support 20. Therefore, it functions as a pressing member that presses the first protrusion 22b into the thread groove of the suspension bolt B. If the suspension bolt support 10 can be temporarily fixed to the suspension bolt B simply by pressing the first support 20 against the suspension bolt B with the flexible auxiliary plate 40, the suspension bolt support 10 Does not have to have the first protrusion 22b. Further, if the support for hanging bolts according to the present embodiment can be temporarily fixed by pressing, the support for a rod-shaped material that can be temporarily fixed to a rod-shaped material such as round steel or square steel having no thread groove formed therein. Can be used as. Even when the auxiliary plate 40 does not have flexibility, for example, by screwing the auxiliary plate 40 into the fastening bolt 50 and tightening the auxiliary plate 40, the rod-shaped material is directed toward the first support 20. You may press it.

Further, the suspension bolt support 10 according to the present embodiment can be used for fixing a plurality of all screw bolts (rod-shaped members) to the suspension bolt B. For example, when used for fixing two all-screw bolts arranged along different directions to the suspension bolt B, the suspension bolt support 10 further sandwiches the second support 30. It suffices to have a third support arranged on the opposite side of the first support 20. As described above, the support for the suspension bolt may have a number of supports corresponding to the number of rod-shaped members to be fixed to the suspension bolt.

The present invention is not limited to the above-described embodiment, and can be variously modified at the implementation stage without departing from the gist thereof. In addition, each embodiment may be carried out in combination as appropriate, and in that case, the combined effect can be obtained. Further, the above-described embodiment includes various inventions, and various inventions can be extracted by a combination selected from a plurality of disclosed constituent requirements. For example, even if some constituent requirements are deleted from all the constituent requirements shown in the embodiment, if the problem can be solved and the effect is obtained, the configuration in which the constituent requirements are deleted can be extracted as an invention.

10 ... Support for hanging bolts, 20 ... 1st support, 21 ... 1st support body, 22 ... 1st plate, 22a ... Hole, 22b ... 1st protrusion, 23 ... 1st holding piece, 24 ... 1st crimping piece, 30 ... 2nd support, 31 ... 2nd support body, 32 ... 2nd plate, 32a ... hole, 32b ... 2nd protrusion, 33 ... 2nd holding piece, 34 ... 2 crimping pieces, 40 ... auxiliary plates, 50 ... fastening bolts, 60 ... nuts, B ... hanging bolts, S ... steady rest bolts (all screw bolts), Q1, Q2 ... accommodating parts.

Claims (9)

In a support for a suspension bolt for fixing a rod-shaped material intersecting the suspension bolt.
With the first support
A second support arranged to face the first support and
It is inserted into the through holes of each of the first support and the second support, and the first support and the second support are fastened with the hanging bolt and the rod-shaped material sandwiched between them. Equipped with fastening bolts,
A protrusion that engages with the screw groove of the hanging bolt is provided on the inner surface of the first support.
A support for a suspension bolt, in which an auxiliary plate for temporarily fixing the first support to the suspension bolt is inserted into the fastening bolt while maintaining the engaged state between the screw groove of the suspension bolt and the protrusion. Ingredients. The support for a hanging bolt according to claim 1, wherein the auxiliary plate has flexibility. The suspension bolt support according to claim 1, wherein the auxiliary plate is thinner than the thread groove of the fastening bolt. The support for a hanging bolt according to claim 1, wherein the auxiliary plate is transparent. The auxiliary plate has a through hole into which the fastening bolt is inserted.
The support for a suspension bolt according to claim 1, wherein the inner peripheral edge of the through hole of the auxiliary plate is locked to the fastening bolt by engaging with the screw groove of the fastening bolt. The support for a hanging bolt according to claim 1, wherein the second support is configured in the same manner as the first support. The support for a hanging bolt according to claim 1, wherein the auxiliary plate has a size that covers the entire first support and the second support. The support for a hanging bolt according to claim 7, wherein the auxiliary plate is circular. In the rod-shaped material support for fixing the second rod-shaped material to the first rod-shaped material,
With the first support
A second support arranged to face the first support and
It is inserted into the through holes of each of the first support and the second support, and the first rod-shaped material and the second rod-shaped material are sandwiched between the first support and the second support. Fastening bolts for fastening and
An auxiliary plate for pressing the first rod-shaped member against the first support member in order to temporarily fix the first rod-shaped member so as not to fall off from the first rod-shaped member.
Support for rod-shaped material provided with.

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