JP3783013B2 - Rebar assembly support mechanism - Google Patents

Description

  The present invention relates to a reinforcing bar assembly support mechanism necessary for foundation work such as a reinforced concrete or steel reinforced concrete building or bridge.

  Conventionally, foundation work has been performed in order to transmit the vertical load due to the weight of the building to the ground. Foundations include independent foundations, cloth foundations, composite foundations, and solid foundations. Both foundation works are done by gravel land and cracked land, then throwing away concrete, placing reinforcing bars and forming slabs. Slabs are formed by placing bricks and stones on the top surface of the discarded concrete, placing reinforcing bars on them, and then placing concrete for slabs. When forming the slab, there was a problem that it was difficult to make the cover thickness of the reinforcing bar constant.

  Therefore, as a means for solving this problem, a reinforcing bar support for a foundation is generally used as shown in Patent Document 1 and the like. This foundation reinforcing bar support has a base, a horizontal muscle support part erected on the base part, and a rising part having a joint recess that is connected from the left and right walls, the left and right side parts, and the back part of the horizontal muscle support part and joins the riser muscle. A line support part, a vertical line dropping part formed between the rising muscle support parts, a width stopper metal support part extending from the upper part of the rising muscle support part and formed parallel to the upper surface of the base part, It is equipped with.

Further, as a reinforcement for such a reinforcing bar support for a foundation, a bar arrangement spacer as shown in Patent Document 2 is known. This spacer for bar arrangement is a base frame support that supports the base frame facing the base frame in order to form the side of the footing, and the reinforcing bar support part that discards the reinforcing bar and supports it at a predetermined interval from the concrete and the base frame. And the base frame support part includes a cutting part that can be cut in accordance with the expected height of the footing. By using the reinforcing bar spacers at both ends of the foundation reinforcing bar support, the foundation reinforcing bar support is reinforced and the cover thickness is made constant.
Japanese Patent No. 2779404 Drawing Japanese Patent No. 3036692 Publication

However, since the above-mentioned conventional reinforcing bar support and reinforcing spacer are sold by different manufacturers as independent parts, the construction company is appropriate for the basic reinforcing bar support to be used. It was necessary to purchase a suitable spacer for bar arrangement. And in an actual construction site, since it used combining the reinforcing bar support for a foundation and the reinforcing bar support for a foundation, as a result, the problem that it was difficult to take out sufficient accuracy occurred.
In addition, the foundation reinforcing bar support and the combination of the foundation reinforcing bar support must be constructed at the construction site, so in order to perform highly accurate work, it takes skilled work and more work than necessary. It took an extra day, and there was a problem that the construction cost became expensive after all.
Furthermore, the foundation reinforcing bar support of Patent Document 1 can be used for a single reinforcing bar, but it cannot be used for a larger double reinforcing bar arrangement and its use is limited, and a single reinforcing bar is used. In this case, there is also a problem that the strength of the rising muscle support portion is not sufficient.

  The present invention has been made in view of the above-described conventional problems, and the reinforcing bar support for the foundation and the spacer for bar arrangement can be purchased and used as a single unit, can be accurately constructed, and the cover thickness and the like are sufficiently guaranteed. In addition, the present invention provides a rebar assembly support mechanism that can be used for single bar arrangement and double bar arrangement and can be used for single bar arrangement and double bar arrangement.

In order to solve the above-described problems, the present invention provides a reinforcing bar support main body in the center, reinforcing bar spacers disposed on both sides of the reinforcing bar support main body, the reinforcing bar support main body, and the reinforcing bar spacer. And a connecting tool that can be housed in the reinforcing bar support body. The connecting tool is integrated between the reinforcing bar support body and the bar arrangement spacer, and the reinforcing bar support This is a reinforcing bar assembly support mechanism in which the distance between the tool and the bar arrangement spacer can be adjusted.

Further, the reinforcing bar support main body of the present invention includes a base, a rising muscle block having a plurality of openings inside the base, and a fitting formed on the upper surface of the rising muscle block to fit the rising muscle. A rising bar support part having a joint recess, a width stopper metal support part 4 standing on the rising bar block 2 and having an opening 4a formed in parallel with the base part 1, and disposed at the lower part. The above-described object can be achieved by a configuration provided with an insertion locking portion having an insertion hole and an inner peripheral surface provided with several stages of locking mechanisms.
According to the above-described configuration, the rising muscle support portion having the fitting recess is configured to be used for a single vertical muscle and a double vertical muscle (hoop muscle), and the rising muscle block supports the rising muscle support portion. However, it has sufficient strength against an excessive load of the hoop muscle.

The bar arrangement spacer according to the present invention includes a base, a base frame support portion standing on the base frame side of the base and having a plurality of pins planted thereon, and standing on the reinforcing bar support body side of the base. A connecting tool supporting portion to which the connecting tool to be housed and fixed in the insertion locking portion is fixed, and a base muscle receiving portion for supporting a base muscle at a predetermined interval from the base and the base frame supporting portion. It is characterized by that.
According to the above configuration, the base frame can be stably supported by the plurality of pins, the distance from the reinforcing bar support main body can be maintained at an accurate position by the coupling tool, and the horizontal bars of the reinforcing bar can be maintained by the base bar receiving portion. Can be held stably.

Furthermore, the connecting tool according to the present invention has one end fixed to the reinforcing bar spacer, the other end supported to the reinforcing bar support main body so that the distance can be adjusted, and an upper surface engaging the position adjusting member at equal intervals. A protrusion is formed.
According to the above configuration, the coupling protrusion is inserted into the insertion hole of the reinforcing bar support body, and the position adjustment engagement protrusion (click portion) provided on the inner peripheral surface at an arbitrary position is the insertion locking portion. By being locked, the distance between the reinforcing bar main body and the bar arrangement spacer can be freely adjusted.

  According to the rebar assembly support mechanism configured as described above, according to the above-described configuration, the reinforcing bar support body and the reinforcing bar spacer can be aligned as a single body, and the distance between the reinforcing bar support body and the reinforcing bar spacer Can be adjusted to the optimum distance according to the construction. In addition, since the reinforcing bar main body, the bar arrangement spacer, and the coupling tool are integrated, the construction accuracy can be improved, and the cover in the width direction and the bottom direction can be sufficiently guaranteed.

Furthermore, since the reinforcing bar main body, the bar arrangement spacers and the coupling tool are integrated, the concrete can be placed once, so that the construction period can be shortened and the construction cost can be reduced.
In addition, the reinforcing bar support body, the bar arrangement spacers and the couplings are all made of a plastic material with high mechanical strength, so the overall weight is reduced and transportation and construction are handled better. Therefore, it can be made more resistant to corrosion and more durable than iron, which is a conventional main material.
In addition, in the rising bar support part of the reinforcing bar support body, the vertical bar is configured to be compatible with both single reinforcing bars (back muscles) and double reinforcing bars (hoop bars), and the strength to support the rising bar support part Since the structure is reinforced, it can be used for a wide range of applications.

A best mode for carrying out a reinforcing bar assembly support mechanism according to the present invention will be described with reference to the drawings.
1 is a perspective view showing the entire reinforcing bar assembly support mechanism of the present invention, FIG. 2 is a front view showing a reinforcing bar support body of the reinforcing bar assembly support mechanism of FIG. 1, FIG. 3 is a side view of FIG. 2, and FIG. FIG. 5 is a perspective view showing a usage state of the reinforcing bar assembly support mechanism of FIG. 1, and FIG. 6 is a single reinforcing bar as the reinforcing bar assembly support mechanism of FIG. FIG. 7 is a sectional view showing a state where the reinforcing bar assembly support mechanism of FIG. 1 is used for a double reinforcing bar.

  As shown in FIG. 1, the reinforcing bar assembly supporting mechanism according to the present invention includes a reinforcing bar support body A at the center, reinforcing bar spacers B arranged on both sides of the reinforcing bar support body A, and the reinforcing bar support. The connecting tool C is configured to be able to adjust the distance between the reinforcing bar support tool main body A and the reinforcing bar spacer C.

  Reinforcing bar support body A, reinforcing bar spacer B and connecting tool C used in the reinforcing bar assembly support mechanism of the present invention are polyolefin resin such as polyethylene and polypropylene, polystyrene resin, polyamide resin, polyvinyl chloride resin, polyvinylidene chloride resin, ABS. It is molded into a predetermined shape from an alkali-resistant synthetic resin material such as a resin, a fluororesin, or a chlorinated polyether resin, or a composition of these synthetic resin material and an inorganic filler. These materials are appropriately selected from single use or copolymer according to the place of use and required strength. As described above, since the synthetic resin material or the composition thereof as a raw material can be mass-produced by injection molding, the productivity and workability can be improved, so that the cost can be reduced. Furthermore, it is preferable as a material more resistant to corrosion than iron. Furthermore, when strength or corrosion resistance is required, a metal such as stainless steel may be used.

  As shown in FIGS. 2 to 4, the central reinforcing bar main body A used in the reinforcing bar assembly support mechanism of the present invention has a base 1 and a plurality of openings 2 a provided upright on the base 1. The rising muscle block 2, the rising muscle support portion 3 having a fitting recess 3 a formed on the upper surface of the rising muscle block 2 and fitting the rising muscle 24, and the opening 4 a erected on the rising muscle block 2. And a width stopper metal support portion 4 formed in parallel with the base portion 1.

  Since the base 1 that supports the reinforcing bar support body A is disposed on the upper surface of the discarded concrete 27, the lower surface is a flat plate formed horizontally. The riser block 2 erected on the base 1 is formed with four spaces 2a, 2a, 2a, 2a so that slab concrete can be filled therein. Columns 2b, 2b, 2b are formed between the four space portions 2a, 2a, 2a, 2a, and ribs are formed on the columns 2b, 2b, 2b, respectively, as shown in FIG. Is formed and reinforced. Therefore, even if the rising muscle support part 3 receives the vertical load of the rising muscle, it has sufficient strength.

  As shown in FIG. 6, the riser support portion 3 formed on the upper surface of the riser block 2 forms a fitting recess 3 a for fitting the riser 24 of the single rebar 20 with two fitting protrusions. ing. In addition, as shown in FIG. 7, fitting recesses 3b and 3b are also formed between the rising bar support part 3 and the wall surface of the width stopper metal support part 4, respectively, and receiving of the rise when the double reinforcing bar 20a is used. It is a surface.

  Further, the width stopper metal support portion 4 erected on the rising bar block 2 has a space portion 4 a, and the upper surface is formed in parallel with the base portion 1. As shown in FIG. 3, the width stopper metal support portion 4 is formed in a stepped shape, and a locking portion 4 b is formed on the rear end side to prevent the width stopper metal material from being displaced from the width stopper metal support portion 4. Has been. Further, since the width stopper metal support portion 4 protrudes in the width direction from the rising bar lateral block 2, a reinforcing rib 4c is formed to reinforce this protrusion.

  Further, as shown in FIG. 3, the reinforcing bar main body A is formed with an insertion locking portion 5 of a connecting tool C described later on the side surface of the rising bar block 2. As shown in FIG. 2, the insertion locking portion 5 penetrates the lower part of the rising muscle block 2, and the insertion locking portion 5 is engaged with an engagement protrusion 6 of a coupling tool C to be described later. A mating engagement piece 5a is formed. A click mechanism may be employed as the engagement protrusion 6. That is, the engaging bar 6 on both sides of the reinforcing bar support body A can be accurately positioned by engaging the engaging protrusion 6 and the engaging piece 5a formed with a predetermined size on the upper surface of the connector C. It is possible to perform construction with high accuracy. And it is for rational construction according to construction conditions that the insertion latching | locking part 5 is formed in two places.

  On the other hand, as shown in FIG. 4, the bar arrangement spacer B is a base frame support in which a pedestal 11 and a plurality of pins 12, 12, 12. A base 13 spaced from the base 11 and the base frame support 13 by a portion 13, a connector support 14 that is erected on the rebar support tool main body A side of the base 11 and to which the connector C is fixed. A base auxiliary muscle receiving portion 15 that supports the auxiliary muscle 21 and a spacing member 16 for holding the base auxiliary muscle receiving portion 15 at a predetermined position are provided.

  As shown in FIG. 5, the reinforcing bar spacer B supports a reinforcing bar base auxiliary bar 21 embedded in a footing such as a fabric foundation, and the base 11 of the reinforcing bar B is slightly in the width direction. Widely formed. The plurality of pins 12 projecting to the side surface, that is, the base frame 28 side support the base frame and the base frame support portion 13 on the side surface (not shown) with an appropriate force. Five pieces are formed at an appropriate interval so that the concrete can smoothly flow in between the side base frame and the base frame support portion 13 (see FIG. 4). In addition, a bar-shaped protrusion 12a in the longitudinal direction protrudes from the bottom of the bar arrangement spacer B in order to maintain a distance from the ground. As a result, the distance between the bottoms can be constant.

Accordingly, since the height of the concrete can be known from the position of the pin 12, an appropriate cover thickness can be controlled. The base auxiliary muscle receiving portion 15 is formed in a substantially cylindrical shape with the upper portion partially cut away, and an introduction surface 15a is formed at the entrance so that the base auxiliary muscle 21 can be easily introduced. The base auxiliary bar receiving portion 15 is positioned by the respective spacing members 16, 16, 16,... So that the base auxiliary bar 21 can be discarded and supported from the concrete 27 and the base frame 28 with a predetermined cover. .

Further, a connecting tool C for connecting the reinforcing bar support main body A and the reinforcing bar spacer B is fixed to the reinforcing bar support main body A side of the connecting tool support portion 14. As shown in FIG. 1, the connector C is processed into a rectangular bar shape. When the connecting tool C is long and large, it is processed as an independent part, but in a normal case, the connecting tool C is molded integrally with the reinforcing bar spacer B. On the upper surface of the connector C, an engaging projection 6 that also serves as a scale is formed. As described above, when the engagement protrusion 6 is inserted into the insertion locking portion 5 of the reinforcing bar support body A and positioned, the engagement protrusion 6 is engaged with the engagement piece 5a and positioned. Therefore, if the positions of the engaging protrusions 6 of the left and right couplings C are made the same, the positions of the left and right bar arrangement spacers B can be accurately determined, so that highly accurate construction can be performed. .

  As shown in FIGS. 5 and 6, the rebar assembly support mechanism configured as described above is provided with the reinforcing bar main body A, the reinforcing bar spacer B, and the connecting tool C in advance after the discarded concrete 27 is placed thereon. They are integrated and arranged at regular intervals. Next, the base auxiliary muscle 21 is attached to the base auxiliary muscle receiving portion 15 of the spacer B for bar arrangement. (In the case of a unitized reinforcing bar, the base auxiliary muscle and the base main muscle are integrated.) Therefore, the work is completed by mounting the base auxiliary muscle 21 to the base auxiliary muscle receiving portion 15. Next, the rising bar 24 is mounted and fixed in the fitting recess 3a of the reinforcing bar support body.

  As shown in FIG. 5, in the state where the reinforcing bars are assembled, the base auxiliary bars 21 perpendicular to and parallel to the base main bars 23 are welded, and the rising bars 24 are planted on the lower end main bars 22. An abdominal muscle 25 and an upper main muscle 26 are welded to the rising muscle 24.

Next, after fixing the width stopper metal not shown to the width stopper metal support 4 of the reinforcing bar support body A and attaching the base frame 28, the concrete is poured to fix the slab. The concrete for slab flows into the openings 2a, 4a of the reinforcing bar support body A and fixes the reinforcing bar support body A. Further, the concrete also flows over the reinforcing bar spacer B and the connecting tool C, and a more appropriate cover than the reinforcing bar spacer B is guaranteed.

  Further, as shown in FIG. 6, this rebar assembly support mechanism is used not only for the single rebar 20 but also for the double rebar 20a as shown in FIG. That is, in FIG. 6, in the case of the single reinforcing bar 20, the single rising bar 24 is supported by the central fitting recess 3a of the reinforcing bar support body A, but in the case of the double reinforcing bar 20a shown in FIG. The rising lines 24, 24 are supported by the two fitting recesses 3b, 3b. Since the two fitting recesses 3b and 3b are supported by the support columns 2b and 2b, respectively, there is no problem in strength, and the application of the reinforcing bar assembly support mechanism of the present invention is expanded.

It is a perspective view showing the whole rebar assembly support mechanism of the present invention. It is a front view which shows the rebar support tool main body of the rebar assembly support mechanism of FIG. FIG. 3 is a side view of FIG. It is a front view which shows the spacer for bar arrangement used for the reinforcing bar assembly support mechanism of FIG. It is a perspective view which shows the use condition of the reinforcing bar assembly support mechanism of FIG. It is sectional drawing which shows the state which used the reinforcing bar assembly support mechanism of FIG. 1 for a single reinforcing bar. It is sectional drawing which shows the state which used the reinforcing bar assembly support mechanism of FIG. 1 for a double reinforcing bar.

Explanation of symbols

A Reinforcing bar support body B Bar arrangement spacer C Connecting tool 1 Base part 2 Rising bar block 2a Opening part 2b Strut part 3 Rising bar support part 3a Fitting concave part 3b Fitting concave part 4 Width stop hardware support part 4a Opening part 4b Locking Part 5 Insertion locking part 5a Engagement piece 6 Engagement protrusion 11 Base 12 Pin 13 Base frame support part 14 Connector support tool 15 Base auxiliary muscle receiving part 16 Spacing holding material 20 Single reinforcing bar 20 'Double reinforcing bar 21 Base auxiliary reinforcing element 22 Lower main bar 23 Base main bar 24 Rising muscle 25 Abdominal muscle 26 Upper main bar 27 Discarded concrete 28 Base frame

Claims (4)

Reinforcing bar support main body in the center, reinforcing bar spacers disposed on both sides of the reinforcing bar support main body, connecting the reinforcing bar support main body and the reinforcing bar spacer, and in the reinforcing bar support main body A connecting tool that can be housed, wherein the connecting tool is integrated between the reinforcing bar support body and the reinforcing bar spacer, and the distance between the reinforcing bar support tool and the reinforcing bar spacer is Rebar assembly support mechanism characterized by being adjustable. A base, a rising muscle block having a plurality of openings in the interior standing on the base, and a rising muscle support portion having a fitting recess formed on the upper surface of the rising muscle block for fitting the rising muscle; A width stopper metal support portion which is erected on the rising muscle block and has an opening and is formed in parallel with the upper surface of the base portion, and an insertion hole arranged and formed at the lower portion, and several steps on the inner peripheral surface An insertion locking portion having a locking mechanism, and a reinforcing bar support body disposed in the center,
A spacer for bar arrangement disposed on both sides of the reinforcing bar support body;
The rebar support tool main body and the bar arrangement spacer are connected, and a connection tool that can be stored in the rebar support tool main body,
The rebar assembly support mechanism is characterized in that the connecting tool is capable of adjusting a distance between the rebar support tool main body and the reinforcing bar spacer. The bar arrangement spacer includes a base, a base frame support portion standing on the base frame side of the base and having a plurality of pins planted thereon, and standing on the reinforcing bar support body side of the base. A connector support portion to which the connector housed in the stopper is fixed; and a base muscle receiving portion that supports a base muscle at a predetermined interval from the base and the base frame support portion. The reinforcing bar assembly support mechanism according to claim 1 or 2. One end of the connector is fixed to the reinforcing bar spacer, the other end is housed in the insertion locking portion of the reinforcing bar support body, and is supported so that the distance between the two can be adjusted. The reinforcing bar assembly support mechanism according to any one of claims 1 to 3, wherein an adjustment protrusion is formed.

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