JPH0913399A - Reinforcement holding device - Google Patents

Abstract

PURPOSE: To arrange a reinforcement simply. CONSTITUTION: First recessed sections 7 and upper-end slits 8 are formed to tieplate-shaped vertical-reinforcement holding members 2. Second recessed sections 10 and lower-end slits 11 are formed to tieplate-shaped horizontal reinforcements 2. Both slits 8, 11 are engaged, and both reinforcement holding members 2 are assembled in a frame shape. Vertical reinforcements 5 are installed into the first recessed sections 7, and horizontal reinforcements 6 are mounted into the second recessed sections 10. Since both reinforcements 5, 6 are positioned and fixed into each recessed section 7, 10, the crossed sections of both reinforcements 5, 6 need not be bound with wires.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for holding reinforcing bars to be reinforced during foundation concrete construction of a building, and more particularly to a reinforcing bar holding device capable of greatly simplifying the reinforcing work.

[0002]

2. Description of the Related Art In general, the foundation of a building using lightweight steel frames, etc., is first constructed by a building standard method, in which concrete is first thrown away on the foundation and hardened, and then vertical and horizontal reinforcing bars are placed above it. It is stipulated that, while arranging in a lattice shape, a formwork is assembled so as to surround them and concrete is again placed in the formwork to form the basic concrete.

By the way, conventionally, when arranging the reinforcing bars,
First, one of the vertical and horizontal reinforcing bars is installed at a predetermined height position from the upper surface of the discarded concrete at a predetermined interval, and the other vertical or horizontal reinforcing bar is fixed on the upper surface side. The bars are arranged in a grid pattern at different intervals, and then all the intersections of the two reinforcing bars are bound with a wire or the like to hold the reinforcing bars.

[0004]

In the conventional reinforcing bar holding method, it is necessary to install one of the vertical and horizontal reinforcing bars at a predetermined height position from the upper surface of the discarded concrete, but the positioning is easy. Not only that, it takes a lot of time to install it, and in the case of both vertical and horizontal reinforcing bars, it is necessary to arrange the reinforcing bars at a predetermined fixed interval, and the work is not easy. Further, in both the vertical and horizontal rebars, the intersections must be tied together with a wire, which requires a great deal of labor and time.

In some cases, it is necessary to arrange vertical and horizontal reinforcing bars in a plurality of layers at intervals in the vertical direction. In this case, the reinforcing bars in the lower layer are first arranged and bound. After that, you have to do the work of reinforcing the upper layers,
There is a problem that these cannot be performed in parallel.

The present invention has been made in view of the present situation, and an object of the present invention is to provide a reinforcing bar holding device that can greatly simplify the reinforcing bar arrangement work and does not require skill.

Another object of the present invention is to provide a reinforcing bar holding device in which both reinforcing bar holding members can be easily installed.

Another object of the present invention is to provide a reinforcing bar holding device in which both reinforcing bar holding members can be easily installed and can be easily transported and stored.

Another object of the present invention is to provide a reinforcing bar holding device capable of improving stability when installing a reinforcing bar holding member.

Another object of the present invention is that each reinforcing bar holding member can be easily installed and the stability at the time of installation can be improved.
An object of the present invention is to provide a reinforcing bar holding device that does not cause a collapse even if an operator rides on the reinforcing bar.

Another object of the present invention is to provide a reinforcing bar holding device capable of easily and accurately positioning the reinforcing bars in the vertical direction.

Another object of the present invention is to provide a reinforcing bar holding device which can easily cope with a case where a plurality of vertical and horizontal reinforcing bars are arranged vertically.

Still another object of the present invention is to provide a reinforcing bar holding device in which the flowability of concrete to be cast is not impeded by the reinforcing bar holding member.

[0014]

In order to achieve the above object, the present invention has a reinforcing bar holding device for holding vertical reinforcing bars and horizontal reinforcing bars arranged in a lattice for basic concrete, in which the width direction is directed vertically. A vertical reinforcing bar holding member having a horizontal strip plate shape and a plurality of first recesses for holding vertical reinforcing bars at predetermined intervals on the upper edge, and a horizontal strip plate shape with the width direction facing up and down is provided on the upper edge. A horizontal reinforcing bar holding member having a plurality of second concave sections for holding horizontal reinforcing bars at predetermined intervals, and the bottom positions of the both concave sections are at least the diameter dimension of the vertical reinforcing bars or the horizontal reinforcing bars when the both reinforcing bar holding members are installed. The feature is that they are shifted up and down.

The present invention is also characterized in that both reinforcing bar holding members are connected to each other at one end in the longitudinal direction to form a plane L shape.

In the present invention, both reinforcing bar holding members are cut vertically from the upper end of one of the reinforcing bar holding members and from the lower end of the other reinforcing bar holding member in the vertical direction. It is characterized in that the lower end slits are engaged with each other so that they are combined in a plane cross shape.

The present invention is also characterized in that at least one of the reinforcing bar holding members is provided with a leg portion at a lower end portion thereof.

The present invention is also characterized in that both end portions of each reinforcing bar holding member are supported by support members installed on the base.

The present invention is also characterized in that each of the reinforcing bar holding members is supported by the column member so that the vertical position thereof can be adjusted.

The present invention is also characterized in that the supporting member supports a plurality of reinforcing bar holding members at intervals in the vertical direction.

The present invention is further characterized in that at least one of the reinforcing bar holding members is provided with an opening in the plate thickness direction.

[0022]

In the present invention, the vertical reinforcing bars are held by being fitted in the first recesses of the vertical reinforcing bar holding member, while the horizontal reinforcing bars are held by being fitted in the second recesses of the horizontal reinforcing bar holding member. . By the way, since the bottom positions of both the recesses are vertically displaced at least by the diameter dimension of the vertical reinforcing bar or the horizontal reinforcing bar, the vertical reinforcing bars and the horizontal reinforcing bars which are orthogonal to each other are necessarily vertically displaced. It is easy to arrange. In some cases, a plurality of reinforcing bars may be arranged one above the other to arrange them, but in this case, the bottom positions of both recesses are
It is possible to easily deal with this by shifting the reinforcing bars up and down by a multiple of the diameter dimension.

Further, each reinforcing bar is
Since it is firmly fixed at regular intervals, it is not necessary to bind the intersecting portions of both rebars with a wire, and the work of arranging the rebars can be greatly simplified, and no skill is required for the work.

Further, in the present invention, both the reinforcing bar holding members are connected to each other at one longitudinal end thereof to form a plane L shape. Therefore, the L-shaped both reinforcing bar holding members are
The installation of both the reinforcing bar holding members is completed by simply placing them on the discarded concrete and fixing each reinforcing bar holding member on the discarded concrete as required, and the installation of both reinforcing bar holding members is easy.

Further, in the present invention, both reinforcing bar holding members are combined in a plane cross shape by engaging the upper end slit and the lower end slit. Therefore, both the reinforcing bar holding members can be easily installed, and when both slits are disengaged, the two reinforcing bar holding members are in a flat plate shape, which facilitates transportation and storage.

In the present invention, at least one of the reinforcing bar holding members has a leg portion at its lower end portion. For this reason, it becomes possible to improve the stability when the reinforcing bar holding member is installed, and it becomes easy to fix it to the discarded concrete.

Further, in the present invention, both ends of each reinforcing bar holding member are supported by the pillar members installed on the base. For this reason, the base plate of the pillar member can be enlarged,
Alternatively, by fixing the support member on the base, it is possible to improve the stability at the time of installing each reinforcing bar holding member, and there is no risk of the worker collapsing on the reinforcing bar.
Further, it is easy to install each reinforcing bar holding member.

Further, in the present invention, each reinforcing bar holding member is supported by the column member so that the vertical position can be adjusted.
Therefore, by vertically shifting the vertical positions of the respective reinforcing bar holding members without vertically shifting the bottom positions of the both concave portions, the bottom positions of the both concave portions are at least rebar when the two reinforcing rod holding members are installed. It is possible to vertically shift only the diameter dimension of, and it is possible to make both the reinforcing bar holding members to have exactly the same shape and dimension. Further, it becomes possible to easily and accurately position the reinforcing bars in the vertical direction.

Further, in the present invention, a plurality of reinforcing bar holding members are supported on the column member at intervals in the vertical direction. Therefore, even when a plurality of vertical and horizontal reinforcing bars are arranged in the vertical direction, it is possible to easily cope with them.

Further, in the present invention, at least one of the reinforcing bar holding members is provided with an opening in the plate thickness direction. Therefore, it is possible to densely fill the mold with concrete without the risk that the reinforcing member holding member will impede the fluidity of the concrete that is placed after the reinforcing bars are arranged.

[0031]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. FIG. 1 shows a reinforcing bar holding device according to a first embodiment of the present invention. The reinforcing bar holding device 1 includes a vertical reinforcing bar holding member 2 and a horizontal reinforcing bar holding member 3 combined in a plane cross shape. The two reinforcing bar holding members 2 and 3 are arranged in a cross shape on a waste concrete 4 cast on a base. The vertical reinforcing bars 5 and the horizontal reinforcing bars 6 are arranged and held on the two reinforcing bar holding members 2 and 3 in a grid pattern at regular intervals.

The vertical reinforcing bar holding member 2 is shown in FIGS.
As shown in FIG. 2, the strip is in the shape of a horizontal strip with the width direction facing up and down, and the upper edge of the strip has a first portion for holding the vertical reinforcing bar.
A plurality of recesses 7 are provided at predetermined intervals. Then, by inserting and locking the vertical reinforcing bars 5 in these first recesses 7,
The vertical reinforcing bars 5 are arranged and held at regular intervals.

As shown in FIGS. 1 and 2, the vertical reinforcing bar holding member 2 is also provided with a plurality of upper end slits 8 vertically cut downward from the upper end edge thereof at predetermined intervals. By engaging 8 with a lower end slit 11 of a horizontal reinforcing bar holding member 3, which will be described later, both reinforcing bar holding members 2 and 3 can be combined in a plane cross shape.

As shown in FIG. 2, the vertical reinforcing bar holding member 2 is further provided with a plurality of concrete flow openings 9 opening in the plate thickness direction. The fluidity of the ready-mixed concrete to be cast on the No. 4 is ensured, and it is possible to prevent problems such as formation of voids in the basic concrete and to improve the strength of integration with the concrete.

On the other hand, as shown in FIGS. 1 and 3, the horizontal reinforcing bar holding member 3 is in the form of a horizontal strip plate with the width direction facing up and down. A plurality of second recesses 10 for use are provided at predetermined intervals. And
By inserting and locking the horizontal reinforcing bars 6 in the respective second recesses 10, the horizontal reinforcing bars 6 are arranged and held at regular intervals.

The horizontal reinforcing bar holding member 3 is shown in FIGS.
As shown in FIG. 5, the lateral width dimension (vertical dimension) is set to be larger than the lateral width dimension of the vertical reinforcing bar holding member 2. Therefore, the horizontal reinforcing bar holding member 3 extends from the bottom of the second concave portion 10. The vertical dimension L _Y to the lower end is set to be a long dimension by a value slightly larger than the diameter of the vertical reinforcing bar 5 than the vertical dimension L _T from the bottom of the first recess 7 to the lower end of the vertical reinforcing bar holding member 2. ing. And by this, the horizontal rebar 6
As shown in FIG. 1, the reinforcing bars 5 are arranged immediately above the reinforcing bars 5 so that the reinforcing bars 5 and 6 do not come into contact with each other and cannot be arranged.

As shown in FIGS. 1 and 3, the horizontal reinforcing bar holding member 3 is also provided with a plurality of lower end slits 11 vertically cut from the lower end edge thereof at predetermined intervals. By engaging 11 with the upper end slit 8 of the vertical reinforcing bar holding member 2, both reinforcing bar holding members 2 and 3 can be stably combined in a planar cross shape.

As shown in FIG. 3, the horizontal reinforcing bar holding member 3 is further provided with a plurality of concrete flow openings 12 that open in the plate thickness direction. The fluidity of the ready-mixed concrete to be cast on the No. 4 is ensured, and it is possible to prevent problems such as formation of voids in the basic concrete and to improve the strength of integration with the concrete.

Further, as shown in FIG. 4, projections 13 for preventing the slip-off are provided on both sides of the upper end of each of the recesses 7 and 10. , 6 to 1 to 10% smaller than the diameter. As a result, it is possible to prevent the reinforcing bars 5 and 6 fitted and locked in the recesses 7 and 10 from accidentally coming out of the recesses 7 and 10.

Next, the operation of the present embodiment will be described.
At the time of foundation concrete construction, first, the concrete 4 is thrown out on the foundation and hardened, and then the two reinforcing bar holding members 2 and 3 are combined in a cross shape by engaging the slits 8 and 11. Then, after that, the vertical reinforcing bars 5 are arranged and the horizontal reinforcing bars 6 are arranged on the upper surface side thereof.

As shown in FIG. 1, the reinforcing bars 5 and 6 thus arranged are fitted and locked in the recesses 7 and 10 of the reinforcing bar holding members 2 and 3, respectively, so that they are positioned and fixed. It is not necessary to bind the crossing part of the wire with a wire, and the work of arranging is completed.

Therefore, the reinforcing bar holding members 2 and 3 shown in FIG.
Also, a form (not shown) is installed so as to surround the reinforcing bars 5 and 6, and ready-mixed concrete is placed in the form.

Then, the strip-shaped rebar holding members 2, 3
Reinforcing bar holding device 1 is completed simply by combining
Further, since the work of arranging the reinforcing bars 5 and 6 is completed only by setting the reinforcing bars 5 and 6 on the upper surface side of the reinforcing bar holding device 1, the working time can be greatly shortened and the skill does not require skill. Therefore, it is easy to secure workers.

Further, since the respective reinforcing bar holding members 2 and 3 have a flat plate shape until they are assembled with each other, they can be easily transported and stored, and can be easily manufactured by using a steel plate or plastic. it can.

FIG. 5 shows a second embodiment of the present invention, in which each of the reinforcing bar holding members 2 and 3 in the first embodiment has a self-supporting structure.

That is, as shown in FIG. 5, a plurality of projecting pieces 14 are provided at the lower end edges of the reinforcing bar holding members 2 and 3 at regular intervals.
The protrusions 14 are alternately bent in the plate thickness direction at right angles to form leg portions 15. Then, each of these leg portions 15 is provided with a fixing hole 16 for fixing each of the reinforcing bar holding members 2 and 3 on the discarded concrete 4 (see FIG. 1) via anchor screws or the like. In addition,
In other respects, the configuration is the same as that of the first embodiment, and the operation is the same.

Then, the leg portion 1 is attached to each of the reinforcing bar holding members 2 and 3.
Since 5 is provided, a small number of workers can perform the work of combining both reinforcing bar holding members 2 and 3 in a cross shape. Further, the self-supporting property after the both reinforcing bar holding members 2 and 3 are combined is improved, and even if an operator rides on the reinforcing bars 5 and 6, the reinforcing bar holding members 2 and 3 do not collapse. Further, by fixing each reinforcing bar holding member 2, 3 on the concrete 4 by using the fixing hole 16, there is also a problem that when arranging fresh concrete, the reinforcing bar positions of the reinforcing bars 5, 6 are displaced. Absent.

FIGS. 6 (a) and 6 (b) show a third embodiment of the present invention, in which the horizontal width dimensions (vertical dimensions) of both reinforcing bar holding members 2 and 3 are the same.

That is, the two reinforcing bar holding members 2 and 3 are shown in FIG.
As shown in FIGS. 1 (a) and (b), it is in the form of a horizontal strip having the same lateral width, and when both reinforcing bar holding members 2 and 3 are combined in a cross shape, in the case of FIG. Unlike the above, the upper ends of the reinforcing bar holding members 2 and 3 are flush with each other.

By the way, when the horizontal width dimensions of both the reinforcing bar holding members 2 and 3 are the same, the reinforcing bars 5 and 6 come into contact with each other and the reinforcing bars cannot be arranged. Therefore, in this embodiment, as shown in FIG.
As shown in (b), the depth of the first recess 7 is set to the second recess 10
Is made larger than that of the first embodiment so that vertical dimensions L _T and L _Y similar to those of the first embodiment can be secured. In other respects, the configuration is the same as that of the first embodiment, and the operation is the same.

Therefore, according to this embodiment, the first
The same effect as the embodiment can be expected.

By the way, in each of the above embodiments, the case where the reinforcing bars 5 and 6 are arranged one by one has been described.
In some cases, it may be required to arrange a plurality of reinforcing bars 5 and 6 vertically.

FIG. 7 shows a fourth embodiment of the present invention applied to such a case, in which the reinforcing bars 5 and 6 are, for example, 2
The book is arranged so that it can be overlaid on top and bottom.

That is, as shown in FIG. 7, the recesses 7 and 10 of the reinforcing bar holding members 2 and 3 are arranged so that the reinforcing bars 5 and 6 are vertically separated.
It has such a depth that it can be fitted and locked by overlapping the main body, and projections 13 are provided on both sides of the upper end thereof.
In other respects, the configuration is the same as that of the first embodiment, and the operation is the same.

However, by simply increasing the depth of the recesses 7 and 10, it is possible to deal with a case where a plurality of reinforcing bars 5 and 6 are arranged vertically, and the stacked reinforcing bars 5 and 6 are Since it is supported on both sides of the recesses 7 and 10, there is no fear that the stacked state will collapse.

FIG. 8 shows a fifth embodiment of the present invention, in which one end of the vertical reinforcing bar holding member 2 and one end of the horizontal reinforcing bar holding member 3 are connected to each other to form a holding unit 20 having a plane L shape. It is something that is done.

That is, this holding unit 20 is shown in FIG.
As shown in FIG. 2, one end of the vertical reinforcing bar holding member 2 is connected to one end of the horizontal reinforcing bar holding member 3 at a right angle, and the fixing holes 16 are provided at the lower ends of the reinforcing bar holding members 2 and 3. Legs 15 each having a are provided. The holding units 20 are arranged in line on the discarded concrete 4 to form the reinforcing bar holding device 1, as shown by the chain line in FIG.

As shown in FIGS. 2 and 3, the reinforcing bar holding members 2 and 3 may be formed by using strip members having different widths, but a single strip member is bent into an L shape. 6 to allow the holding unit 20 to be configured.
More preferably, the structure shown in (a) or (b) is adopted.
In other respects, the configuration is the same as that of the first embodiment, and the operation is the same.

Since the holding unit 20 has a self-supporting structure, one worker can construct the reinforcing bar holding device 1.

In the fifth embodiment, the case where the vertical reinforcing bar holding member 2 and the horizontal reinforcing bar holding member 3 are composed of a single member has been described, but both reinforcing bar holding members 2 and 3 are provided.
Alternatively, the holding unit 20 may be configured by a separate member and connected to each other in the field.

Although not specifically described in each of the above embodiments, the positions of the reinforcing bars 5 and 6 from the upper surface of the waste concrete 4 may be different depending on the site. As a method corresponding to this, a spacer is provided on the lower surface of each reinforcing bar holding member 2 or 3, or each reinforcing bar holding member 2 or 3 is inserted.
Although it is possible to attach a lifting jig to the lower end of No. 3, many spacers and lifting jigs are required when applied to a large area of basic concrete, and the work is not always easy and the cost is high. Become. Therefore, in such a case, a plurality of types of reinforcing bar holding members 2 and 3 having different vertical dimensions L _T and L _Y are facilitated in advance, and the optimum reinforcing bar holding members 2 and 3 are selected and used according to the site. do it.

FIGS. 9 and 10 (a) and 10 (b) show a sixth embodiment of the present invention, in which a reinforcing bar holding device is provided in which a plurality of layers of the reinforcing bars 5 and 6 can be arranged at intervals in the vertical direction. 31 is used.

That is, this reinforcing bar holding device 31 is shown in FIG.
As shown in FIGS. 10 (a) and 10 (b), a vertical reinforcing bar holding member 32, a horizontal reinforcing bar holding member 33, and a column member 34 that supports both ends of these reinforcing bar holding members 32, 33 are provided. A plurality of, for example, three reinforcing bar holding members 32 and 33 are supported on the column member 34 at intervals in the vertical direction.

The column member 34 is shown in FIGS. 9 and 10.
As shown in (a) and (b), it is composed of a quadrangular column-shaped column 34a and a base plate 34b provided at the lower end of the column 34a. The column member 34 is placed on the discarded concrete 4. After that, the base plate 34b is fixed to the concrete 4 by the anchor bolts 35.

As shown in FIG.
And as shown in FIGS. 10 (a) and 10 (b), the column 34a
Are provided with locking grooves 36 that reach the upper end of each of the reinforcing bar holding members 32 and 33. The reinforcing bar holding members 32 and 33 are supported by the column member 34 by fitting and locking both ends of the reinforcing bar holding members 32 and 33 into the locking grooves 36. Has become. And each reinforcing bar holding member 3
The upper and lower positions of the upper and lower reinforcing bars 2, 33
Alternatively, the length can be easily adjusted by changing the length of the height adjusting spacer 37 interposed between the 33 and 33.

As shown in FIGS. 9 and 10 (a) and 10 (b), each of the reinforcing bar holding members 32 and 33 is formed in a horizontal strip plate shape having a relatively small lateral width dimension (vertical dimension). The upper edge of the first recess 3 for holding the vertical reinforcing bar 3
8 and a plurality of second recesses 39 for holding horizontal reinforcing bars are provided at predetermined intervals. Then, each of the first recesses 3
By inserting and locking the vertical reinforcing bars 5 into the vertical bars 8, the vertical reinforcing bars 5 are arranged and held at fixed intervals, and at the same time, the second recesses 39 are formed.
By inserting and locking the horizontal reinforcing bars 6 in the horizontal reinforcing bars 6, the horizontal reinforcing bars 6 are held at fixed intervals.

By the way, when arranging both reinforcing bars 5 and 6,
As a method of preventing the contact between the two reinforcing bars 5 and 6, FIG.
Although the structure shown in FIGS. 10 (a) and 10 (b) may be considered, in this embodiment, as shown in FIGS. 10 (a) and 10 (b), the lower side of the lowermost horizontal reinforcing bar holding member 33 is provided. By interposing the height adjusting spacer 37 only on the upper end, contact between the two reinforcing bars 5 and 6 is prevented.

Therefore, the support member 34 is used to support both end portions of both the reinforcing bar holding members 32 and 33, and the supporting member 34 is used.
Is fixed on the discarded concrete 4 by using the anchor bolts 35, the stability of the reinforcing bar holding members 32 and 33 at the time of installation is improved, and the reinforcing bars 5 and 6 and the reinforcing bar holding member 3 are improved.
Even if a worker rides on 2, 33, there is no danger of collapse.

Further, it is easy to install the reinforcing bar holding members 32 and 33, and by changing the height adjusting spacer 37, the positions and the number of the reinforcing bar holding members 32 and 33 arranged in plural vertically can be freely changed. can do.

[0070]

As described above, according to the present invention, the vertical reinforcing bars and the horizontal reinforcing bars arranged in a grid pattern are formed by the vertical reinforcing bar holding member having the first concave portion and the horizontal reinforcing bar holding member having the second concave portion. Since they are supported, both reinforcing bars can be arranged in a grid pattern easily, accurately and firmly without binding the intersections of both reinforcing bars with a wire, greatly simplifying the reinforcing work. Since it is possible to do so and no skill is required for the work, it is easy to secure workers.

Further, in the present invention, since both the reinforcing bar holding members are connected to each other at one end in the longitudinal direction thereof to form the plane L shape, the L-shaped reinforcing bar holding members are disposed on the concrete and discarded. Accordingly, the installation of both reinforcing bar holding members is completed and the installation of both reinforcing bar holding members is easy only by discarding each reinforcing bar holding member and fixing it on concrete.

Further, according to the present invention, since both the reinforcing bar holding members are combined in a plane cross shape by engaging the upper end slit and the lower end slit, the both reinforcing bar holding members can be easily self-supported. In addition to being easy to install, when both slits are disengaged from each other, both reinforcing bar holding members become flat, so that they can be easily transported and stored.

Further, in the present invention, since the leg portion is provided at the lower end portion of at least one of the reinforcing bar holding members, the stability at the time of installing the reinforcing bar holding member can be improved and the leg portion can be provided. If the reinforcing bar holding member is discarded and fixed on the concrete, the fixing is also easy.

Further, in the present invention, since both end portions of each reinforcing bar holding member are supported by the strut members installed on the base, the base plate of the strut member is made large, or the strut members are placed on the base. By fixing, it is possible to greatly improve the stability when installing each reinforcing bar holding member,
Even if a worker rides on the reinforcing bar or the reinforcing bar holding member, there is no possibility of collapse. Further, it is easy to install each reinforcing bar holding member.

Further, according to the present invention, since each reinforcing bar holding member is supported by the supporting column member so that the vertical position can be adjusted, the bottom position itself of both recesses is not vertically shifted.
By shifting the vertical position of each reinforcing bar holding member up and down, the bottom position of both recesses can be shifted vertically by at least the diameter dimension of the reinforcing bar when both reinforcing bar holding members are installed. Therefore, both reinforcing bar holding members can be made to have exactly the same shape and size, and cost reduction can be achieved by using common parts. In addition, the vertical bar arrangement of each reinforcing bar can be easily and accurately performed.

Further, according to the present invention, since the support member supports a plurality of reinforcing bar holding members at intervals in the vertical direction, it is easy to arrange vertical and horizontal reinforcing bars in a plurality of layers in the vertical direction. Can correspond to. And at this time
Since it is not necessary to bind the intersecting parts of both reinforcing bars with wire, first arrange only the vertical reinforcing bars of each layer, then slide the horizontal reinforcing bars of each layer on the vertical reinforcing bars and arrange them sequentially. It can also be taken, and the bar arrangement work can be performed by the most suitable method for the site.

Further, according to the present invention, at least one of the reinforcing bar holding members is provided with an opening in the plate thickness direction, so that the fluidity of concrete cast after the reinforcing bar reinforcement is impeded by the reinforcing bar holding member. It is possible to densely fill the mold with concrete without increasing the risk of being damaged, and to improve the strength of integration with the concrete.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a reinforcing bar holding device according to a first embodiment of the present invention.

FIG. 2 is a main part configuration diagram showing details of a vertical reinforcing bar holding member of FIG.

3 is a main part configuration diagram showing details of a horizontal reinforcing bar holding member in FIG. 1. FIG.

FIG. 4 is an explanatory diagram showing details of a recess.

FIG. 5 is a sectional view of a reinforcing bar holding member showing a second embodiment of the present invention.

FIGS. 6 (a) and 6 (b) are main part configuration diagrams of a reinforcing bar holding member showing a third embodiment of the present invention.

FIG. 7 is a main part configuration diagram of a reinforcing bar holding member showing a fourth embodiment of the present invention.

FIG. 8 is a plan view of a holding unit showing a fifth embodiment of the present invention.

FIG. 9 is a plan configuration diagram of a reinforcing bar holding device showing a sixth embodiment of the present invention.

10A is an explanatory diagram showing a state of a vertical reinforcing bar holding member in the apparatus of FIG. 9, and FIG. 10B is an explanatory diagram showing a state of a similar horizontal reinforcing bar holding member.

[Explanation of symbols]

 1,31 Reinforcing bar holding device 2,32 Vertical reinforcing bar holding member 3,33 Horizontal reinforcing bar holding member 4 Discarded concrete 5 Vertical reinforcing bar 6 Horizontal reinforcing bar 7,38 First recess 8 Upper end slit 9,12 Concrete flow opening 10,39 Second Recess 11 Lower end slit 13 Projection 15 Leg 16 Fixing hole 20 Holding unit 34 Support member 34a Support 34b Base plate 35 Anchor bolt 36 Locking groove 37 Height adjusting spacer

Claims (8)

[Claims] 1. A reinforcing bar holding device for holding vertical reinforcing bars and horizontal reinforcing bars arranged in a grid pattern for foundation concrete, which is a horizontal strip plate shape with its width direction facing up and down, and is formed at predetermined intervals at its upper edge. A vertical reinforcing bar holding member having a plurality of first concave portions for holding the vertical reinforcing bars and a second horizontal reinforcing bar holding member having a horizontal strip plate shape with the width direction facing up and down and having a predetermined interval at the upper end edge.
A horizontal reinforcing bar holding member having a concave portion, and the bottom positions of both the concave portions are vertically displaced by at least the diameter dimension of the vertical reinforcing bar or the horizontal reinforcing bar in the installed state of both reinforcing bar holding members. apparatus. 2. The reinforcing bar holding device according to claim 1, wherein the reinforcing bar holding members are connected to each other at one end in the longitudinal direction to form a plane L shape. 3. Both of the reinforcing bar holding members are vertically cut from the upper end slit of one of the reinforcing bar holding members and the upper end slit of the other reinforcing bar holding member in the vertical direction. By engaging the lower end slit,
The reinforcing bar holding device according to claim 1, wherein the reinforcing bar holding devices are combined in a plane cross shape. 4. The reinforcing bar holding device according to claim 1, wherein at least one of the reinforcing bar holding members has a leg portion at a lower end portion thereof. 5. The reinforcing bar holding apparatus according to claim 1, wherein both end portions of each reinforcing bar holding member are supported by column members installed on a base. 6. The reinforcing bar holding member is supported by a column member so that its vertical position can be adjusted.
Reinforcing bar holding device described. 7. The reinforcing bar holding device according to claim 5, wherein the support member supports a plurality of reinforcing bar holding members at intervals in the vertical direction. 8. The reinforcing bar holding device according to claim 1, wherein at least one of the reinforcing bar holding members has an opening in the plate thickness direction. .