JP7012576B2 - Pillar suspension jig - Google Patents

Description

The present invention relates to a hanging jig for column bars, and more particularly to a hanging jig for suspending a previously assembled column bar and moving it to a construction position.

When constructing a building, there is work to suspend the pre-assembled column bars with a crane or the like and move them to the construction position. At this time, if the column bars are not properly suspended, the pre-assembled column bars may be distorted or damaged. For example, if the outer diameter of the pre-assembled column bar and the support position of the hanging wire are extremely different, the wire that suspends the column bar will be skewed, and a lateral force will be applied to the upper part of the column bar, causing the main bar. The hoop muscle attached to is dislodged or distorted.

When such an event occurs, it causes a delay in work and a deterioration in construction quality. Therefore, conventionally, various techniques for appropriately suspending a pre-assembled reinforcing bar have been proposed (see, for example, Patent Document 1 and Patent Document 2).

The technique described in Patent Document 1 relates to a method for suspending a column bar, which can lift the column bar without thickening the template and can remove the sling wire without climbing to a high place. In this method of suspending the column, a suspending jig opened on one side is attached to the lower side of the positioning template attached to the upper part of the previously assembled column so as to sandwich the outside of the column. Then, the pillar bar is lifted and installed at a predetermined position while supporting the template with the hanging jig, and then the hanging jig is lowered and removed from the pillar bar.

The technique described in Patent Document 2 relates to a suspension balance device capable of more reliably stabilizing the posture of a load. This suspension balance device includes a suspension balance body that is lifted and supported by a lifting machine, a pulley device that is integrally attached to the suspension balance body and a load, and an end portion of the suspension balance body side and / or a load side. It is equipped with a suspension rope that is arranged so as to be alternately wound around the pulley of the pulley device of the suspension balance body and the pulley of the load pulley device while being fixed to the suspension balance. Further, the suspension balance body is lifted by a lifting machine, a load is applied to the pulley device via the suspension rope, and at least one pulley device is provided with a lock mechanism for fixing the pulley and the suspension rope.

Japanese Unexamined Patent Publication No. 9-279851 Japanese Unexamined Patent Publication No. 2017-7808

As described above, if the outer diameter of the pre-assembled column bar and the position where the wire that directly suspends the column bar grips the column bar are extremely different, the wire that directly suspends the column bar is skewed, so that the column The muscle cannot be hung properly. In the worst case, some of the suspended column bars and hoop bars may fall. In the conventional techniques including Patent Document 1 and Patent Document 2, although such problems are taken into consideration, it has been desired to develop a technique for suspending the column bars more safely and appropriately. ..

The present invention has been proposed in view of the above circumstances. By appropriately adjusting the positional relationship between the outer diameter of the pre-assembled column bar and the wire that directly suspends the column bar, the column bar can be safely and appropriately adjusted. It is an object of the present invention to provide a hanging jig for a column bar capable of suspending.

The pillar bar suspension jig according to the present invention has the following features in order to achieve the above-mentioned object. That is, the column bar suspension jig according to the present invention is a jig for suspending the pre-assembled column bars, and is a suspension device (for example, a crane) via a suspension wire (for example, a crane wire). It is characterized in that it is provided with a support member having at least three suspending members which are connected to the upper part of the column bar to be suspended and suspend the column bar. As the suspension device, for example, a crane can be used, in which case the wire of the crane becomes the suspension wire.

The suspending member includes a pair of support parts having different distances from the center of the support member, a support wire hung between the pair of support parts, a pulley that can move in contact with the support wire, and a pulley. It is provided with a connecting wire (a wire that directly suspends the column bar) that is attached and connected to the upper part of the column bar, and a gripping member that is attached to the lower part of the connecting wire and grips the upper part of the column bar.

The support wire is a wire that becomes V-shaped by being hung between a pair of support portions. Further, the support portion is made of, for example, a perforated steel plate and a shackle to which a support wire is attached, and the grip member is made of, for example, a clamp.

In the above-mentioned column bar suspension jig, the pulley moves between the pair of support portions in contact with the support wire according to the outer diameter of the column bar to be suspended, thereby connecting the connecting wire. It is designed to be in a vertical state.

In the above-mentioned suspension jig for column reinforcement, the support member is composed of an outer frame and an inner frame integrated with the outer frame, one of the pair of support portions is provided on the outer frame, and the other is on the inner frame. It is possible to have a provided configuration.

In the above-mentioned column reinforcement hanging jig, the outer frame and the inner frame have a rectangular shape, and the pair of support portions can be attached to the four corners or the vicinity of the four corners of the outer frame and the inner frame, respectively.

According to the column bar suspension jig according to the present invention, the pulley moves between the pair of support portions in contact with the support wire according to the outer diameter of the column bar to be suspended. As a result, the connecting wire that directly suspends the column bar is always in a vertical state. That is, the wire that directly suspends the column does not skew, and the column can be appropriately suspended. Therefore, an unintended external force does not act on the pre-assembled main bar and hoop bar, the shape of the main bar and hoop bar is not adversely affected, and there is no risk of falling. Therefore, the positional relationship between the outer diameter of the pre-assembled column bar and the hanging wire is appropriately adjusted, and the column bar can be suspended safely and appropriately.

The bottom view, the front view, and the side view of the support member constituting the suspension jig of the column reinforcement which concerns on embodiment of this invention. The front view of the suspension jig of a column reinforcement which concerns on embodiment of this invention. The side view of the suspension jig of a column reinforcement which concerns on embodiment of this invention. The front view of the state in which the column reinforcement is suspended by the suspension jig of the column reinforcement according to the embodiment of the present invention.

Hereinafter, the suspension jig for the column bar according to the embodiment of the present invention will be described with reference to the drawings. 1 to 4 explain the suspension jig of the column bar according to the embodiment of the present invention, FIG. 1A is a bottom view of the support member, and FIG. 1B is a front view and view of the support member. 1 (c) is a side view of the support member, FIG. 2 is a front view of the column bar suspension jig, FIG. 3 is a side view of the column bar suspension jig, and FIG. 4 is a column bar in a state where the column bar is suspended. It is a front view of the hanging jig of.

<Outline of the hanging jig for pillars>
As shown in FIG. 4, the present invention relates to a hanging jig used for suspending (suspending) a pre-assembled column bar 10 and moving it to a construction site. The pre-assembled column bars 10 are column bars 10 that have been assembled in advance at a factory or the like and brought into the construction site, or column bars 10 that have been ground-assembled in the work yard of the construction site. For example, the main bars 11 and the hoop bars 12 It consists of. The pre-assembled pillar bar 10 has various diameters depending on the object to be constructed, and has various shapes such as a columnar column and a prismatic column.

<Support member>
As shown in FIGS. 1 to 4, the suspension jig of the column reinforcement 10 according to the embodiment of the present invention includes a support member 20 according to the diameter and shape of the column reinforcement 10 to be suspended, and has a predetermined range. Therefore, it is possible to apply it to the column bars 10 having different diameters and shapes. The support member 20 includes a connecting member 40 for connecting the hanging wire 30 of the crane and a hanging member for suspending the column bar 10. By changing the size of the support member 20, the diameter and shape of the applicable range can be changed. Further, a relay wire 50 is hung between the hanging wire 30 and the connecting member 40.

The support member 20 shown in FIGS. 1 to 4 includes a quadrangular outer frame and an inner frame integrated with the outer frame. Specifically, as shown in FIG. 1A, between the rectangular outer frame member 21, the pair of bridging members 22 extending from one side of the outer frame member 21 to the other side facing each other, and the bridging member 22. It is composed of a pair of inner frame members 23 that are hung on the inner frame member 23. That is, the outer frame is formed by the outer frame member 21, the inner frame is formed by a part of the cross-linking member 22 and the inner frame member 23, and the outer frame and the inner frame are integrated by the cross-linking member 22. In the example shown in FIG. 1, the outer frame member 21, the cross-linking member 22, and the inner frame member 23 are made of a prismatic steel pipe. The shape of the support member 20 is not limited to a quadrangle, and may be a triangle, a polygon of a pentagon or more, or a circle or an ellipse, depending on the diameter and shape of the column bar 10 to be suspended. There may be.

<Hanging member>
As shown in FIGS. 1 to 4, the suspending member is a member for suspending the column bar 10 by connecting to the upper part of the column bar 10 to be suspended, and in the present embodiment, it has a square frame shape. It is provided in the vicinity of each of the four corners of the support member 20 of the above. The suspending member includes a pair of support portions 60a and 60b, a support wire 60c, and a pulley 60d. In this embodiment, four suspension members (support portions 60a, 60b, support wire 60c, pulley 60d) are provided, but in order to stably suspend the column bar 10, three or more suspension members are provided. Members are required, and the number may be five or more depending on the size, weight, shape, and the like of the column bars 10 to be suspended.

<Support part>
Each suspending member includes a pair of support portions 60a and 60b having different distances from the center of the support member 20. As shown in FIGS. 1 to 4, the support portions 60a and 60b are composed of a perforated steel plate and a shackle to which the support wire 60c is attached. In the examples shown in FIGS. 1 to 4, one of the pair of support portions 60a and 60b is provided on the outer frame, and the other is provided on the inner frame. The support portions 60a and 60b are not limited to the perforated steel plate and the shackle, and may be any member as long as the support wire 60c can be supported and hung.

<Support wire>
A support wire 60c is hung between the pair of support portions 60a and 60b. The length of the support wire 60c can be appropriately set according to the diameter and shape of the column bar 10 to be suspended. When the pulley 60d is attached to the support wire 60c and the column bar 10 is suspended by the connecting wire 70 attached to the pulley 60d, the support wire 60c is V-shaped with the pulley 60d as a bending point, as shown in FIGS. 2 to 4. It becomes a state.

<Pulley>
The pulley 60d moves between the pair of support portions 60a and 60b in a state of being in contact with the support wire 60c, so that the connecting wire 70 is in a vertical state according to the outer diameter of the column bar 10 to be suspended. can do. That is, as shown in FIGS. 2 and 3, when the column bar 10 is suspended by the connecting wire 70, the weight of the column bar 10 acts on the pulley 60d, and the pulley 60d has a pair of support portions 60a and 60b. It moves while contacting the support wire 60c hung between them, and the connecting wire 70 is in a vertical state.

<Connecting wire / gripping member>
The connecting wire 70 is attached to the pulley 60d, and a gripping member 80 is provided below the connecting wire 70. The gripping member 80 is made of, for example, a clamp, and by gripping the upper portion of the column bar 10, the column bar 10 can be suspended by the connecting wire 70.

<Hanging pillars>
A procedure for suspending (suspending) the column bar 10 using the suspension jig according to the embodiment of the present invention will be described. It is assumed that a plurality of support members 20 are prepared according to the outer shape and shape of the column bar 10.

To suspend (hang) the pre-assembled column bar 10, a support member 20 corresponding to the outer shape and shape of the column bar 10 is selected, and the support member is attached to the suspension wire 30 of the crane via the relay wire 50. Connect 20. Then, the crane is operated so that the gripping member 80 attached to the lower end of the connecting wire 70 reaches the upper part of the column bar 10. In this state, the upper part of the column bar 10 (main bar 11) is gripped by the grip member 80.

Then, when the crane is operated to raise the hanging jig, the hanging wire 30, the relay wire 50, the support member 20, the support portions 60a and 60b, the support wire 60c, and the pulley 60d are raised, and the pillar is attached to the connecting wire 70. The weight of the muscle 10 acts to move the pulley 60d while contacting the support wire 60c hung between the pair of support portions 60a and 60b, and the connecting wire 70 is in a vertical state. In this state, if the crane is further operated to raise the suspension jig, the column bar 10 can be moved to the target position in a stable state.

10 Column bar 11 Main bar 12 Hoop bar 20 Support member 21 Outer frame member 22 Bridge member 23 Inner frame member 30 Suspended wire 40 Connecting member 50 Relay wire 60a Support part attached to outer frame member 60b Support part attached to inner frame member 60c Support wire 60d Pulley 70 Connecting wire 80 Gripping member

Claims (4)

It is a hanging jig for hanging the pre-assembled column bars.
It is suspended from a hanging device via a hanging wire, and is provided with a support member having at least three hanging members connected to the upper part of the column to be suspended to suspend the column.
The suspending member includes a pair of support portions having different distances from the center of the support member.
A support wire hung between the pair of support portions and
A pulley that can move in contact with the support wire,
A connecting wire attached to the pulley and connected to the upper part of the column bar,
A gripping member attached to the lower part of the connecting wire and gripping the upper part of the column bar,
A jig for hanging columns, which is characterized by being equipped with. The pulley moves between the pair of support portions in contact with the support wire according to the outer diameter of the column bar to be suspended, thereby bringing the connecting wire into a vertical state.
The hanging jig for a column bar according to claim 1. The support member includes an outer frame and an inner frame integrated with the outer frame.
One of the pair of support portions is provided on the outer frame, and the other is provided on the inner frame.
The hanging jig for a column bar according to claim 1 or 2, wherein the jig is characterized by the above. The outer frame and the inner frame have a quadrangular shape.
The pair of support portions are attached to the outer frame and the four corners or the vicinity of the four corners of the inner frame, respectively.
The hanging jig for a column bar according to claim 3.

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