JP2526026Y2 - Reinforcing unit for building foundation and securing device therefor - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reinforcing bar unit for a building foundation and a tie for the same, and more particularly to an improvement of an inverted T-shaped reinforcing bar unit for reinforcing the foundation concrete of a building such as a house. Further, the present invention relates to a lashing device suitable for use in the reinforcing bar unit for building foundation and a structure including a rising bar structure.

[0002]

2. Description of the Related Art A reinforced concrete fabric foundation is formed as a foundation for a wooden house or the like. In such a fabric foundation, concrete is often reinforced by an inverted T-shaped reinforced frame. The reinforcing bar frame is formed by arranging deformed steel bars vertically and horizontally at the forming position of the cloth foundation and integrated by a binding wire. However, it is extremely troublesome to assemble steel bars one by one at a construction site, and a pre-made reinforcing bar frame is brought to the site, a reinforcing bar frame serving as a rising bar is erected on a reinforcing bar frame serving as a base bar, and a reciprocal T-shape is connected to each other by a line. And so on. When assembling the reinforcing bar frame in an inverted T-shape, it is necessary to hold and bind the upright bar at the center of the base bar, and this requires a great deal of time and effort. Integrate the riser and assemble it.
Reinforcement units for building foundations have been used which can perform a character-shaped forming operation and reduce the burden of a binding operation and the like.

The above-described reinforcing bar unit for building foundation has the following structure. The base bars are arranged in parallel in a horizontal plane, for example, two first transverse bars obtained by cutting a deformed steel bar to a desired length, and a plurality of short second transverse bars are passed orthogonally between the first transverse bars. I have. On the other hand, as for the rising muscle, a plurality of short second longitudinal muscles are passed orthogonally between the first longitudinal muscles, for example, to three first longitudinal muscles arranged horizontally in a vertical plane. Then, the second horizontal streak of the base streak is bent shallowly in a `` K '' shape, and the second horizontal streak is alternately opened upward in a `` K '' shape and opened downward in a `` K '' shape. Weld between the horizontal streaks, open the first vertical streak at the bottom of the riser above the second horizontal streak, and open the second vertical streak below. After being placed below, the second vertical bar and the middle and upper first vertical bars are welded to the first vertical bar, thereby forming a reinforcing bar unit in which the rising bar is integrated with the base bar in advance. In such a reinforcing bar unit, the first vertical bar at the lower stage of the rising bar is always located at the center of the second horizontal bar of the base bar, and there is no displacement. It can be knocked down or leaned in an inverted T-shape. Therefore, the uprights are transported down to the construction site so that they overlap the base bars, and when placed on a cloth foundation site, the uprights can be raised from the base bars,
It becomes an inverted T-shaped rebar unit. By arranging such reinforcing bar units in a desired direction, connecting the end of the first vertical bar to the end of the first vertical bar of another reinforcing bar unit placed sideways by a binding wire, If the first horizontal bar of the base bar is also connected to each other, the reinforcing bar units of a desired length can be arranged. However, since the first vertical streak of the rising muscle does not rest on all the second horizontal streaks of the base muscle, the portion where the first vertical streak is below the second horizontal streak is interposed through the second vertical streak. There is a serious defect that the load from the top does not transfer to the base muscle, it immediately acts on the gravel laid under the base muscle, and the function of the base muscle can not be fully exhibited . Further, in such a reinforcing bar unit, as described above, a "C" -shaped second horizontal bar is required. After always manufacturing a base bar, a rising bar is integrally manufactured on the second horizontal bar. However, there is a drawback that the rebar unit requires extremely troublesome production.

[0004]

As a solution to the above problem, there is, for example, a reinforcing bar unit for a building foundation described in Japanese Utility Model Laid-Open No. 3-21457. In this method, a base streak and a rising streak were separately manufactured, and a first vertical streak below a streak placed on a second horizontal streak of the base streak was manufactured by variously bending a thin and long spring steel. They are secured by clips. The clip is shaped so as to be entangled with the first vertical streak and the second horizontal streak. Care is taken so that it can be tilted up. Therefore, even if the base bar and the upright bar are integrated before shipment, there is an advantage that the transport and the on-site assembly are easy as in the case of the rebar unit described above. However, since the clip is made of wire, the rigidity of the clip with the riser locked to the base muscle is not expected to be high, and the riser leans or leans against the base muscle. There is a problem that the lock is released or the lock is loosened during operation. In addition, since the thin wire of the clip is bent into a complicated shape, the work of integrating the base studs and the rising studs before shipment is extremely complicated, and the installation work requires time and effort. Then, depending on how to handle the clip, there is a possibility that the finger is pinched or pierced, which is not preferable from the viewpoint of work safety. Further, when the standing streaks are raised so that the base streaks and the rising streaks form an inverted T-shape, the clip does not exhibit the function of assisting the standing streaks to become independent. Therefore, a worker must take measures to prevent the riser from falling down when the riser is established, and there is still room for improvement in workability. On the other hand, in the production of a clip, it is necessary to bend a spring steel wire into a complicated shape, and in that case, the number of forming steps is increased, and there is a disadvantage that an expensive securing device is eventually obtained.

[0005] By the way, when forming the fabric foundation, concrete reinforcing frames are assembled one after another by the operator using the above-mentioned base streaks and rising streaks. At this time, there is almost no problem when connecting and connecting the reinforcing bar units in a straight line. However, in the corner portion, it is not possible to adopt a reinforcing bar unit in which a rising bar is previously integrated with the above-described base bar. Therefore, a base streak and a rising streak suitable for the corner portion are separately prepared. Since the base streaks are placed on the gravel floor of the fabric foundation, it is not necessary to take any special measures for the position for forming the corner portion. However, the connecting of the rising muscles is performed in a three-dimensional space, and is connected using the L-shaped muscle as in the case of the base muscle,
At this time, it is necessary to perform some kind of hand for positioning and maintaining the posture. In particular, the intersection angle as a corner is 90
In order to achieve this, the worker needs sufficient attention. In addition, there is a situation in which the need for temporary fixing arises and it takes time and effort.

[0006] The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to make it possible to independently manufacture a base reinforcing bar and a rising bar which constitute a reinforcing bar unit for a building foundation, and to make them simple. It can be locked by operation, the production of the tie is realized by press molding with a small number of steps, it will be inexpensive and easy to produce in large quantities, the rebar unit assembled with such tie, Even in the locked state, it is easy to tilt the upright muscle with respect to the base muscle or to stand up in an inverted T-shape, and it is possible to make the upright muscle independent, and the second vertical muscle of the upright muscle To ensure that the load applied to the base is transmitted to the base muscles, and that the reinforcement effect can be exerted at a high level.Furthermore, it enables accurate positioning at the corners and reduces the time and effort required for binding. And a securing device for the same, and a riser used in a corner portion, for realizing a suitable riser for facilitating alignment with other risers to be provided. Is to provide the structure.

[0007]

According to the present invention, there is provided a base muscle having a plurality of first transverse muscles arranged in parallel in a horizontal plane and a plurality of second transverse muscles extending perpendicularly between the first transverse muscles. And, a riser comprising a plurality of first longitudinal streaks arranged horizontally in a vertical plane and a plurality of second longitudinal streaks passed orthogonally between the first longitudinal streaks, a second horizontal streak The present invention is applied to a securing device of a reinforcing steel unit for concrete reinforcement in which a first vertical bar is locked in a state of being placed orthogonally and a rising bar and a base bar have an inverted T-shape. The lashing device 9 is configured as follows with reference to FIGS. 1 and 2. It has side wall surfaces 4a, 4b rising on the left and right sides of the second horizontal streak 6 along the direction in which the second horizontal streak 6 of the base streak 2 extends, and an upper top surface 4c continuous at the upper part of the both side wall surfaces 4a, 4b. . Between the lower portions of the side wall surfaces 4a and 4b, a clamping portion 4A having a clamping interval W capable of elastically holding the second horizontal streak 6 from the left and right is provided, while the left and right width Y of the upper top surface 4c is provided. Is made wider than the pinching interval W. At a substantially intermediate height portion between the side wall surfaces 4a and 4b, the first side wall 4a and 4b is opened at the edge of the front end side 4g and extends to the rear end side 4h. A side wall cutout groove 10 into which the vertical stripe 7A can be inserted is formed. The top surface 4c has the top surface 4
The top notch groove 11 is formed at the edge of the front end side 4g and extends to the rear end side 4h to allow the second vertical streak 8 of the rising streak 3 to be inserted. As shown in FIG. 5, a recess 12 for engaging a part of the cross section of the first vertical bar 7A may be formed in the rear end side closing portion 10a of the side wall cutout groove 10.

[0008] The invention of a reinforcing bar unit is based on a base bar having a plurality of first horizontal bars arranged in parallel in a horizontal plane and a plurality of second horizontal bars running orthogonally between the first horizontal bars, and a vertical bar. A plurality of first vertical bars arranged horizontally within the first vertical bar, and a plurality of second vertical bars passing perpendicularly between the first vertical bars. The present invention is applied to a structure in which the muscles are locked in a state where they are mounted orthogonally, and the rising muscle and the base muscle have an inverted T-shape. Its features are:
The above-described lashing device 9 is used. Referring to FIG. 2, the first vertical position located at the lower level of the rising streak 3 with the side wall surfaces 4 a and 4 b holding the second horizontal streak 6 under pressure. The streaks 7A are inserted into the side wall cutout grooves 10, and the second vertical streaks 8 fixed to the first vertical streaks 7A are inserted between the side wall surfaces 4a and 4b. The first vertical bar 7A and the second vertical bar 8 are placed on the second horizontal bar 6 of the base bar 2, and the second vertical bar 8 is inserted into the top notch groove 11 to close the rear end side closing portion 11a (see FIG. 1). ) And lean on it,
The first vertical line 7A and the second vertical line 8 of the rising line 3 on the second horizontal line 6
And the upright muscle 3 is assembled in an inverted T-shape perpendicular to the base muscle 2 in a state where the vehicle is mounted.

[0009] The invention of the rising streaks is based on an inverted T line with a base streak having a plurality of first transverse streaks arranged in parallel in a horizontal plane and a plurality of second transverse streaks passed orthogonally between the first transverse streaks.
Used to form a U-shaped concrete reinforcing bar unit, a plurality of first vertical bars arranged horizontally in a vertical plane, and a plurality of second vertical bars passed orthogonally between the first vertical bars. Applies to those with vertical streaks. The feature is that, with reference to FIG.
An odd number of second vertical stripes 8M, 8M are attached to M, 7M. At the site of the second vertical stripe 8M ₁ located in the center, so that the second vertical stripe 8M ₁ is an inner first vertical stripe 7M, 7
Each of M is bent at a right angle in plan view. The first longitudinal bars 7M are connected to both end portions of the first longitudinal bars 7M, 7M in order to connect and secure the distal end portions of the first vertical bars 7, 7 of the other rising bars 3. That is, the step portion 14 in which the vertical streak axis 7a is displaced by the dimension d corresponding to the diameter is formed.

[0010]

The base muscle 2 has a plurality of first transverse muscles 5, 5 arranged in parallel and a plurality of second transverse muscles 6, 6 crossed between the first transverse muscles 5, 5 at right angles. And rest on a flat surface. The second horizontal streak 6 is formed by the squeezing portion 4A with
Side walls 4a and 4b are resiliently pressed to the left and right of the buckle to hold the tying device 9 to the second horizontal streak 6. In this state, the riser 3
In the vertical posture shown in FIG. 3, the first vertical streak 7A located at the lower stage in the side wall cutout groove 10 formed substantially at the intermediate height between the side wall surfaces 4a and 4b is moved from the edge of the front end side 4g to the rear end side. At the same time, the second vertical streak 8 is inserted into the notch groove 11 formed in the upper top surface 4c of the lashing device 9 from the edge of the front end side 4g toward the rear end side 4h. With this configuration, the side surface of the first vertical line 7A and the lower end surface of the second vertical line 8 are simultaneously placed on the upper surface of the second horizontal line 6, and the second vertical line 8 closes the rear end side of the top notch groove 11. It is in a state where it has entered the part 11a. The inverted T-shaped reinforcing bar unit 1 is formed with the first vertical bar 7A of the rising bar 3 orthogonal to the second horizontal bar 6 of the base bar 2. On the other hand, when the rising streak 3 is in the horizontal posture shown in FIG. 5, the first vertical streak 7A is inserted into the side wall cutout groove 10 and the second vertical streak 8 fixed to the first vertical streak 7A is Wall 4
Insert between a and 4b. Then, when the second vertical streaks 8 are inserted up to the rear end side closing portion 11a of the top notch groove 11 with the lower end of the rising streak 3 as a center, the inverted T-shaped rebar unit 1 becomes the same as the above. When transporting, the rising bar 3 of the reinforcing bar unit 1 having an inverted T-shape is lowered to the front end side 4g of the side wall surfaces 4a, 4b with its lower end as the center. Since the second horizontal bar 6 of the base bar 2 on which the rising bar 3 is mounted is a deformed steel bar, the surface thereof has irregularities, and even if the rising bar 3 is shifted to the front end side 4g, the second vertical bar 8 or the first vertical bar 8 is formed. 7 is disturbed by the projection of the second horizontal streak 6 and cannot be easily removed (see FIG. 5).

In the rear end side closing portion 10a of the side wall cutout groove 10,
When the concave portion 12 (see FIG. 5) for engaging a part of the cross section of the first vertical bar 7A is formed, the upright bar 3 of the reinforcing bar unit 1 which has an inverted T-shape before transportation is used. A part of the first vertical streak 7 </ b> A is fitted into the recess 12 by tilting the lower end toward the front end 4 g of the side wall surfaces 4 a and 4 b. Therefore, even if the rising streak 3 shifts to the front end side 4g, the displacement of the first vertical streak 7A is prevented, and the entire rising streak 3 does not come off from the base streak 2. When it is desired to separate the riser 3 from the base 2, the riser 3
(See FIG. 3), and insert the first vertical streak 7A into the side wall cutout groove 1.
What is necessary is just to return to the front end side 4g along 0.

The second horizontal streaks 6 are held by the pressing portions 4A (see FIG. 2) formed on the side wall surfaces 4a and 4b of the lashing device 9, and the first vertical streaks 7A located below the rising streaks 3 are held. Side wall cutout groove 1
Insert at 0. The second vertical bar 8 fixed to the first vertical bar 7A is inserted between the side wall surfaces 4a and 4b, and the first vertical bar 7A and the second vertical bar 8 are placed on the second horizontal bar 6 of the base bar 2. At the same time, when the second vertical streaks 8 are inserted into the top notch groove 11 and inserted into the rear end side closing portion 11a and leaned up, the upright streaks 3 are perpendicular to the base streaks 2 and have a self-supporting reverse. The T-shaped reinforcing bar unit 1 is obtained.

The first vertical streak 7 of the rising streak 3M (see FIG. 14)
An odd number of second vertical stripes 8M, 8M are attached to M, 7M. Then, at the site of the second vertical stripe 8M ₁ positioned at the center, the second vertical stripe 8M ₁ is first vertical stripe 7M so that inner, so that none of 7M at right angles in plan view Bend. In this way, the rising streaks 3M arranged at the corners can be easily manufactured by bending the rising streaks 3 arranged at the T-shaped portion or the cross portion. The first vertical line 7M,
At both end portions of 7M, a step portion 14 in which the vertical streak axis 7a is displaced by the dimension d corresponding to the diameter of the first vertical streak 7 of the other rising streak 3.
Is formed, the first vertical stripes 7 of the other rising stripes 3 are applied from the step portion 14 to the end, and the first vertical stripes 7M and 7 are bound by a number line or the like. In this manner, the vertical streak axis 7a of the first vertical streak 7M of the rising streak 3M at the corner portion is formed.
And the vertical streak axis 7c of the first vertical streak 7 of the other upright streak 3 connected thereto, and linearity is obtained. Both first vertical bars 7
Just by applying M and 7, the alignment of the uprights 3M and 3 can be easily achieved, and the work of connecting the uprights can be performed efficiently. In the lashing of the rising muscles 3 and the base muscle 2 corners, as shown in FIG. 11, other than the second vertical stripe 8M ₁ located in the center the second vertical stripe 8M, at the lower end of 8M, The first vertical bar 7M and the second vertical bar 8M of the rising bar 3M are locked to the second horizontal bar 6 of the base bar 2A by using the above-described tie-down device 9.

[0014]

[Effects of the Invention] According to the present invention, a lashing device can be manufactured by cutting and pressing a single plate and in an extremely small number of steps, and is significantly easier to manufacture than wire-type clips, and is inexpensive. Becomes The lashing device has a clamping portion on the side wall surface for gripping the second horizontal streak of the base muscle, so that the lashing device can be easily fixed to the base muscle. Then, the first vertical streak of the upright streak is inserted into the side notch groove of the side wall surface, and the second vertical streak is inserted into the upper notch groove of the top surface, whereby the inverted T-shaped reinforcing bar unit can be quickly assembled. it can. In the assembled rebar unit, any of the second vertical bars of the rising bars are always located on the second horizontal bar of the base bars, and the load from above is transmitted to the base via the base bars, and a strong cloth foundation Can be formed. Even when the rising stairs are knocked down, the base studs and the rising stirrups are integrated via the securing device, so that they can be easily transported without being easily detached by vibration or the like. In addition, the upright streaks can be maintained upright only by leaning the upstrokes, and an inverted T-shaped rebar unit can be configured.

If a recess for engaging a part of the cross section of the first longitudinal streak is formed in the rear end side closed portion of the side wall cutout groove, when the rising streak is overturned and overlaid on the base streak, it is fallen down. Even if the riser tries to shift in the horizontal direction on the base muscle, the first vertical streak fitted in the recessed part is restrained in the left and right direction, so that it will not be disturbed during transportation and the load will not slip. Is done.

By using the above-mentioned tying device, a base muscle having a plurality of first horizontal streaks arranged in parallel in a horizontal plane and a plurality of second horizontal streaks passed orthogonally between the first horizontal streaks, A riser having a plurality of first longitudinal streaks arranged horizontally in a vertical plane and a plurality of second longitudinal streaks passed orthogonally between the first longitudinal streaks is placed, and the first vertical streaks are placed on the second horizontal streaks. When the bars are perpendicularly locked, a reinforcing bar unit for reinforcing the concrete in which the rising bars and the base bars are inverted T-shaped can be obtained. In such a reinforcing bar unit, any of the second vertical bars of the rising bar is always located above the second horizontal bar of the base bar, and the load from above is reliably transmitted to the foundation via the base bar, and the durability is improved. A basic cloth foundation can be obtained. At the cloth foundation site, you only need to lean on the rising line,
The efficiency of the work of sequentially arranging the rebar units is achieved. Of course, there is no need to secure the rising bars to the base bars, and the adjacent reinforcing bar units also have a uniform standing posture, and the connection work can be simplified. If you defeat the riser,
It can be transported without bulk with the base muscles. Even if the rising streaks shift with respect to the base streaks during the transportation, they do not come off easily, and load collapse and the like are avoided. The riser and the base can be manufactured separately. In addition, the bending process of the second horizontal streak is not necessary, and the shape is simple and the forming and assembling steps are omitted, so that the productivity is dramatically improved.

An odd number of second longitudinal streaks are attached to the first longitudinal streak of the ascending muscle, and each of the first longitudinal streaks is arranged so that the second longitudinal streak is located inside at the portion of the second longitudinal streak located at the center. If it is bent at a right angle in a plan view, it is possible to manufacture a rising streak suitable for use in a corner portion. Therefore, the riser is T
By preparing a standard one for a character portion or a cross portion, and bending it as necessary, it can be used as a rising line for a corner portion. As a result, the corner portion, T
The material of the riser used in the character portion and the cross portion can be shared, thereby improving the production efficiency. In addition, if a stepped portion in which the longitudinal streak axis is displaced by the dimension of the first longitudinal streak is formed at both end portions of the first longitudinal streak, the rising streak arranged at the corner and the rising stride adjacent thereto are formed. The misalignment with the muscles is reduced, and the work of alignment is reduced. In addition, the vertical streak axis of the first vertical streak between adjacent standing streaks coincides with each other, and the installation accuracy of the reinforcing bar unit for reinforcing the fabric foundation is improved.

[0018]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a lashing device according to the present invention. FIG.
The reinforcing bar unit 1 is assembled by using the tying device, and the base bar 2 is placed on the gravel or the like spread on the construction site of the fabric foundation, and the base bar 2 is placed on the base bar 2 and leaned. And a rising bar 3 that makes the reinforcing bar unit 1 have an inverted T-shape as a whole. Base muscle 2
Is a plurality of (two shown) first horizontal streaks 5 and 5 arranged in parallel in a horizontal plane, and a plurality of (three shown) crossed orthogonally between the first transverse streaks 5 and 5. It is a frame provided with the second horizontal streaks 6,6. The first horizontal line 5 and the second horizontal line 6 are both fixed by welding or the like, and the second horizontal line 6 is
In this example, without protruding sideways from the first horizontal line 5,
It is arranged below the first horizontal streak 5. Although not shown in detail, both the first horizontal bar 5 and the second horizontal bar 6 are formed of deformed steel bars and have a thickness of, for example, 10 mm, which is sufficient to reinforce the concrete forming the fabric foundation. You. On the other hand, the riser 3 is composed of a plurality (three in the drawing) of the first vertical stripes 7, which are horizontally arranged in the vertical plane, and the vertical stripes passed orthogonally between the first vertical stripes 7, 7. And a plurality of (three in the illustration) second vertical streaks 8, 8. The first vertical line 7 and the second vertical line 8 are also fixed by welding or the like in the same manner as described above, and the second vertical line 8 does not protrude up and down from the first vertical line 7 and is positioned in front of the first vertical line 7. Are located. Each of the first vertical bar 7 and the second vertical bar 8 employs a deformed steel bar, and the second vertical bar 8, 8 perpendicular to the first vertical bar 7B in the middle row has a diameter of, for example, 10 mm, and the upper row. The first horizontal vertical streaks 7, 7A located at the lower stage have a diameter of, for example, 13 mm. In a state where the first vertical bar 7A at the lower stage of the rising bar 3 is placed on the second horizontal bars 6 and 6 of the base bar 2 at right angles thereto, the rising bar 3 and the base bar 2 are inverted T. They are arranged so as to form a letter.

By the way, the above-mentioned rising muscle 3 is locked to the base muscle 2 as described later. In the example shown,
Since the second horizontal streaks 6 of the base streaks 2 and the second vertical streaks 8 of the rising streaks 3 are three in number, the securing device 9 is provided at any location. However, two places only at both ends may be used, or when the second horizontal streak 6 of the base streak 2 and the second vertical streak 8 of the riser 3 are four or five, they are adopted every other one. You.
The lashing device 9 has the following structure. As shown in FIG. 1, this is formed by cutting and pressing a single plate material, and has a U-shape with a downward opening when viewed from the front. Wall surfaces 4a, 4
b and the top surface 4c. As shown in FIG. 2, this is attached along the direction in which each second horizontal streak 6 of the base streak 2 extends, so that the side wall surfaces 4a, 4b
Form a surface that rises on the left and right sides of the second horizontal streak 6, and the upper top surface 4c is a continuous plane above the both side wall surfaces 4a and 4b.

Returning to FIG. 1, between the lower portions of the side wall surfaces 4a and 4b, there is provided a pressing interval W capable of elastically holding the second horizontal streaks 6 (see FIG. 2) from the left and right. I have.
If the lower end is slightly opened in a C-shape in order to facilitate attachment to the second horizontal streak 6, and if it is hit with a mallet or the like from above the second horizontal streak 6 of the base streak 2 on which the rising streak 3 is not mounted, The second horizontal streak 6 fits into the bulge of the clamping portion 4A,
The tie 9 is fixed to the base muscle 2.
The shape of the pinching portion 4A is not limited to the one shown in the drawing, and any other suitable shape may be used as appropriate so that it does not easily come off the second horizontal streak 6. The gap W for pinching is narrower than the left-right width Y of the top surface 4c so as to exert elasticity for pinching. Of course, as described later, the second vertical streak 8 having the same outer diameter as the second horizontal streak 6 is fitted into the top notch groove 11 on the top top surface 4c,
The left-right width Y of the upper top surface 4c is ensured to be larger than the pressing interval W. At the substantially middle height portion of each of the side wall surfaces 4a and 4b, that is, at the portion above the upper surface of the second horizontal streak 6, it opens at the edge of the front end 4g and extends to the rear end 4h, at least. A side wall cutout groove 10 into which the first vertical streak 7A (see FIG. 2) located at the lower stage of the rising streak 3 is inserted is formed. As will be described later, the upright 3 may be inserted into the lashing device 9 in various forms, and it is necessary to select the operation procedure or the forward and backward directions of the upright 3 by tilting or leaning it. The height H of the above-described side wall cutout groove 10 is also variously selected depending on the above. However, as described above, at least the first longitudinal streak 7A
A height equal to or slightly greater than the outer diameter of
In the examples of FIGS. 1 and 2, the length is slightly longer than the length obtained by adding the outer diameter of the first vertical bar 7 </ b> A to the outer diameter of the second vertical bar 8.

On the other hand, the top top surface 4c has a top notch groove 11 which is open at the edge of the front end 4g and extends to the rear end 4h so that the second vertical streak 8 of the rising streak 3 can be inserted. Are formed. The width of the top notch groove 11 is ensured at least to the outside diameter of the second vertical streak 8 to be fitted or slightly larger than the outside diameter, but it is not expanded further. The depth D up to the rear end side closing portion 11a of the top notch groove 11 is
It differs depending on the operation procedure and the direction of the front and rear of the riser 3 and is not uniformly determined. However, in this first example, as can be seen from FIG. 3 described later, the depth of the side wall cutout groove 10 is shorter by the outer diameter of the second vertical stripe 8.

When such a tie 9 is used, the inverted T-shaped rebar unit 1 can be formed in the following manner. As shown in FIG. 2, the second horizontal streak 6 is held by the side wall surfaces 4 a and 4 b while being pressed, and the first vertical streak 7 </ b> A located below the rising streak 3 is inserted into the side wall cutout groove 10. The second vertical bar 8 fixed to the first vertical bar 7A is inserted between the side walls 4a and 4b, and the first vertical bar 7A and the second vertical bar 8 are placed on the second horizontal bar 6 of the base bar 2. Then, when the second vertical streak 8 is inserted into the top notch groove 11 and is inserted into the rear end side closing portion 11a and the upright streak 3 is leaned, a vertical posture independent of the base streak 2 is obtained. Hereinafter, the first example will be described in detail with reference to FIGS. In this example, the first vertical streak 7 of the rising streak 3 is
Are attached to the rear side of the second vertical streak 8, as in the case shown in FIG. The base streaks 2 are already placed on a flat surface, of which only the second horizontal streak 6 appears in the figure. First, the side wall surfaces 4a, 4b are positioned above the left and right sides of the second horizontal streak 6, and the top horizontal surface 4c is hit with a mallet to fit the second horizontal streak 6 into the clamping portion 4A. The lashing device 9 is fixed to the second horizontal streak 6 by the elastic force of 4b. Then, the upright muscle 3 is placed in a vertical posture, and the first vertical muscle 7A is set.
Into the side wall cutout groove 10 from the edge of the front end 4g toward the rear end 4h as shown by the arrow. At the same time, the second vertical line 8 enters between the side wall surfaces 4a and 4b from behind the first vertical line 7A. At this time, the top notch groove 11 formed on the upper top surface 4c also extends to the edge of the front end 4g. Inserted from the part. When the first vertical line 7A reaches the rear end side closing portion 10a of the side wall cutout groove 10, the second vertical line 8 also reaches the rear end side closing portion 11a of the top notch groove 11. In this state, the lower side surface of the first vertical line 7A and the lower end surface of the second vertical line 8 are simultaneously placed on the upper surface of the second horizontal line 6.

As described above, the first longitudinal bar 7A is placed on the second horizontal bar 6 of the base bar 2 with the tying device 9 holding the second horizontal bar 6.
The vertical T-shaped reinforcing bar 3 is formed so that the inverted T-shaped reinforcing bar unit 1 is formed. That is, in the form of FIG. 2, the rising streaks 3 are maintained in an independent state, and the concrete on the cloth foundation is reinforced. In the reinforcing bar unit 1 assembled in an inverted T-shape, any of the second vertical bars 8 of the rising bars 3 are always located above the second horizontal bars 6 of the base bars 2, and the house is built on the cloth foundation. Even if a downward load enters the riser 3,
All of that power is transmitted to the foundation of the gravel by way of the base bar 2. Therefore, the fabric foundation is also strong, and the reinforcing unit 1 exerts a large reinforcing effect. Note that the lashing device 9 exhibits a more reliable locking effect than the wire-type clip described in the section of the prior art. Not only that, it is only necessary to cut and press one plate, and it is possible to produce at a low cost with extremely few manufacturing steps.

When folding the above-mentioned inverted T-shaped reinforcing bar unit 1, it is slightly shifted while rotating around the lower end surface of the second vertical bar 8 located at the lower stage of the rising bar 3, and so on.
Fold it down to 4g on the front end side. As shown in FIG. 5, the tip of the second vertical streak 8 slightly enters between the side wall surfaces 4a and 4b, and the width of the side wall surfaces 4a and 4b in that portion is, as shown in FIG. Since it is almost the same or slightly, but slightly wider, there is no problem in defeating the second vertical streak 8. Therefore, such a form may be used for transportation. The second horizontal bar 6 of the base bar 2 on which the rising bar 3 is mounted is a deformed bar and has projections on the surface, and as shown in FIG. 5, it hits the protrusion of the deformed bar of the second vertical bar 8,
Even if the upright streak 3 shifts to the front end side 4g due to vibration or the like during transportation, it does not come off easily because it is hindered by the protrusion of the second horizontal streak 6, and the tie-down device 9 causes the upright streak 3 to move with respect to the base streak 2. Unity is maintained. As described above, by stacking the rising streaks 3 on the base streaks 2, bulkiness during transportation is eliminated, and furthermore, it is possible to immediately stand in an inverted T-shape at a construction site.

In the above, the riser 3 is fixed in a vertical position with the shackles 9.
However, it can be fitted in a horizontal position, and can be immediately transported. In this case, as shown in FIG. 5, at the same time as inserting the first longitudinal streak 7A into the side wall cutout groove 10, the second longitudinal streak 8 fixed to the first longitudinal streak 7A is
What is necessary is just to insert between a and 4b. As described above, it is not easily detached due to mutual unevenness. After that, when the second vertical streak 8 is inserted up to the rear end side closing portion 11a of the top notch groove 11 (see FIG. 3), the second vertical streak 8 is leaned around the lower end of the rising streak 3 (see FIG. 3). It is needless to say that the reinforcing bar unit 1 can be used.

Incidentally, the upper edge line 10 shown by a solid line in FIG.
c is replaced with a side wall cutout groove 10 having an upper edge line 10C such as a two-dot chain line, and a first vertical streak 7 is formed at a rear end side closing portion 10a.
A concave portion 12 with which a part of the cross section of A is engaged may be formed. In the second example, the upright bars 3 of the reinforcing bar unit 1 having an inverted T-shape before transportation are
Side wall surfaces 4a, 4 around the lower surface of second vertical streak 8, etc.
When it is tilted down to the front end side 4g of b, a part of the first longitudinal streak 7A, that is, the upper half part fits into the recess 12 as shown in FIG. Therefore, even if the rising streak 3 shifts to the front end side 4g, the first vertical streak 7A stays in the concave portion 12 and the entire rising streak 3 does not come off from the base streak 2. In this manner, when the rising streaks 3 are overlaid on the base streaks 2, the bulk during transportation is reduced as much as possible,
The rising muscle 3 that has fallen is not displaced on the base muscle 2, so that it is possible to avoid being disturbed or causing the cargo to be dislodged during transportation, and safety is dramatically improved. The depression 1
2 can be reduced to a length close to the outer diameter of the first vertical streak 7A at the maximum. When it is desired to separate the rising streak 3 from the base streak 2, the rising streak 3 is set up and the first vertical streak 7A is moved along the lower edge line 10b of the side wall cutout groove 10 in the front end side 4g in the direction opposite to the arrow in FIG. You can go back to

Next, contrary to the above two examples, that is, the first vertical streak 7 of the rising streak 3 is attached to the front side of the second vertical streak 8, contrary to the case shown in FIG. The third example will be described. Referring to FIGS. 7 and 8, base muscle 2
Is already placed on a flat surface, of which only the second transverse streak 6 appears. First, the side walls 4a, 4b
Is fitted to the second horizontal streak 6, and the securing device 9 is fixed to the second horizontal streak 6. With the upright muscle 3 in a vertical posture, the second vertical muscle 8
Is inserted into the top notch groove 11 from the edge of the front end side 4g and is inserted between the side wall surfaces 4a and 4b. At the same time, the second vertical line 8
Thereafter, the first vertical line 7A is inserted into the side wall cutout groove 10 from the edge on the front end side 4g. Since the depth D of the top notch groove 11 is longer than the depth of the side wall notch groove 10 by the outer diameter of the second vertical streak 8, the second vertical streak 8 is closed at the rear end side of the top notch groove 11. When reaching 11a, the first vertical streak 7A also reaches the rear end side closing portion 10a of the side wall cutout groove 10. In this state, the side surface of the first vertical line 7A and the lower end surface of the second vertical line 8 are simultaneously placed on the upper surface of the second horizontal line 6. In this manner, in a state where the tying device 9 grips the second horizontal streak 6, the vertical upright streak 3 in which the first vertical streak 7A is orthogonal to the second horizontal streak 6 of the base streak 2 has autonomy. The inverted T-shaped reinforcing bar unit 1 is formed.

When the upright streak 3 of the inverted T-shaped reinforcing bar unit 1 is to be defeated, it is necessary to rotate the first upright streak 7A located at the lower stage of the upright streak 3 as a center. At this time, the state shown by the solid line in FIG. 9 and FIG. 10 is obtained, and the vicinity of the second vertical line 8 on the first vertical line 7A is located between the widened side wall surfaces 4a and 4b. (See FIG. 10),
No hindrance occurs. The second horizontal bar 6 of the base bar 2 on which the rising bar 3 is mounted is a deformed steel bar having projections on the surface. Even if the first vertical bar 7A is displaced, it is easily blocked by the protrusion of the nearby second horizontal bar 6. Does not fall off. As can be understood from the description of this example, the first vertical streak 7A is located at the same position when the upright streak 3 is leaned or leaned, and the height h of the side wall cutout groove 10 (see FIG. 7) is It is sufficient that one vertical streak 7A can be inserted. Therefore, at least the first vertical streak 7
It is understood that a height equal to or slightly larger than the outer diameter of A is sufficient.

In the above description, the riser 3 is fitted to the lashing device 9 in a vertical posture, but it may be fitted in a horizontal posture and immediately put into a transport mode. In this case, as shown by the solid line in FIG. 9, that is, while inserting the first vertical streak 7A into the side wall cutout groove 10, the second vertical streak 8 fixed to the first vertical streak 7A is , 4b. As described above, in this posture, the first vertical streak 7A does not easily come off from the second horizontal streak 6 later. After that, the first vertical streak 7 </ b> A is turned around and turned upright, and the second vertical streak 8 is closed at the rear end side closing portion 1 of the top notch groove 11.
Needless to say, when the unit is inserted up to 1a, it becomes the inverted T-shaped rebar unit 1 of FIG.

In the third example described above, both the lower edge line 10b and the upper edge line 10c are horizontal. Instead, the lower edge line 10B is changed like a two-dot chain line, and Side cutout groove 10 having an upper edge line 10C that has been translated in parallel, and a recess 12A with which a part of the cross section of the first vertical streak 7A engages is formed below the rear end side closing portion 10a. Can also. In the fourth example, the height h ₁ from the lower edge line 10B to the upper edge line 10C is the height h ₁ described above.
Is the same as Therefore, when inserting the riser 3 into the lashing device 9, the riser 3 may be in a vertical position or a horizontal position as indicated by a dashed line. In any case, as shown by the alternate long and short dash line, the first longitudinal bar 7A is inserted from above slightly away from the second horizontal bar 6, and the rear end side closing portion 10a is inserted.
At this point, a part of the first vertical streak 7A, for example, a lower half portion, may be lowered as shown by a solid line so as to fit into the recess 12A. In the case of this example, regardless of the posture of the riser 3, even if a force is applied to move the first vertical stripe 7 </ b> A to the front end side 4 g, the first vertical stripe 7 </ b> A acts on the recess 12 </ b> A. It stays and the riser 3 does not come off. When trying to remove, the first vertical streak 7A must be lifted, but it is easy to intentionally remove it. The lower edge line 10
B may be higher than the outer diameter of the first vertical bar 7A.

As described above, the reinforcing bar unit 1 can be assembled by adopting any of the securing members 9 irrespective of the form of the rising bar 3 and the mounting operation of the rising bar 3. In addition, the riser 3 can be made independent. That is, as shown in FIG. 2, a plurality of first horizontal streaks 5, 5 arranged in parallel in a horizontal plane, and a plurality of second horizontal streaks 6, 6 passed orthogonally between the first horizontal streaks 5, 5. A plurality of first longitudinal stripes 7, 7 and first longitudinal stripes 7, 7, which are horizontally arranged in a vertical plane,
The upright streak 3 having a plurality of second longitudinal streaks 8, 8, which are orthogonally interposed therebetween, is placed, and the lower first longitudinal streak 7 </ b> A is placed on the second horizontal streak 6.
Are orthogonally engaged with each other, the reinforcing bar unit 1 for concrete reinforcement in which the rising bars 3 and the base bars 2 form an inverted T-shape.
Becomes In such a reinforcing bar unit 1, any of the second vertical bars 8 of the rising bars 3 are always above the second horizontal bars 6 of the base bars 2, and a downward load is reliably transmitted to the foundation via the base bars 2, A strong fabric base can be formed.

The following is not directly related to the tying device 9, but the upright 3 or the base 2 in which the tying device 9 is used.
Is described. As can be understood from the above description, when the reinforcing bar unit 1 is assembled, the second horizontal bar 6 of the base bar 2 is arranged at any position below the second vertical bar 8 of the rising bar 3. Therefore, the number of the second vertical bars 8 of the rising bars 3 and the second horizontal bars 6 of the base bars 2 constituting one reinforcing bar unit 1 are set to be the same, and the interval between them is also set to be the same. Such base streaks and rising streaks have a nominal length of 1,800 mm when used for fabric foundations in Japanese houses.
Or 3,600 mm. If the dimensions are uniform as described above, it is possible to standardize the product and to obtain a rebar unit without waste according to the building standard. Of course, a half-length product such as 900 mm can be easily obtained by cutting a 1,800-mm product in half at the site.

By the way, when the reinforcing bar units are arranged in a straight line, the adjacent rising bars and the rising bars, and the adjacent base bars and the base bars are connected to the end of each first vertical bar and the first rising bar of the other rising bars. Overlap the end of the vertical streak, and also overlap the end of the first horizontal streak and the end of the first horizontal streak of the other base streaks,
Each is tied with a track. At this time, there is a deviation by the outer diameter of the first vertical bar at the connection part and by the outer diameter of the second horizontal bar, but a slight deviation does not hinder the bundling work because some are side by side. It does not impair the reinforcing effect as a unit. On the other hand, in the corner portion, the T-shaped portion, and the cross portion, for example, in the case of a rising streak, the bars are abutted with each other at the intersection and are bound by applying an L-shaped bent steel bar. For example, in a corner portion, an L-shaped streak is formed along the first longitudinal streak at the end of the rising streak and the end of the first longitudinal streak of another rising streak. The end of the first vertical streak of another riser is abutted against the part, and the L-shaped streak is made to follow the intersection.

However, the work of binding at the corners, the T-shaped section and the cross section requires more labor than when connecting the reinforcing bar units arranged in a straight line. This is because when using a reinforcing bar unit or a clip of the type described in the section of the prior art, it is necessary to support the hand while adjusting the standing posture of the rising muscle, or to temporarily support the wire separately and wind the wire. is there. When the lashing device according to the present invention is used, there is an advantage that the trouble can be remarkably reduced because the rising stride has autonomy. However, it is not easy to give a desired perfect vertical posture because of site construction. Furthermore, corners and the like are important parts as the foundation of a building, and it is desired that the rebar units at these locations can be reliably connected to each other and can be achieved by a simple operation. One of the considerations for achieving this is to increase the accuracy of matching at each of these locations.
Another consideration is to make it possible to realize an assembly that is not affected even if the bundling work is omitted. Therefore, first of all, if measures are taken to minimize the misalignment between the first longitudinal bars and the misalignment between the second transverse bars so as to facilitate the connection of the rebar units arranged side by side, the corner portion, It is possible to raise the deviation in the position and height between the riser and the base muscle arranged at the location of the T-shaped part and the cross, and the riser and the base muscle arranged so as to intersect it. Can be suppressed.

For this reason, taking the base streaks arranged at the corners as an example, as shown in FIG. 11, two-dot chain lines are shown at both end portions of the first horizontal streaks 5A, 5A of the base streaks 2A. The step portion 14A may be formed by shifting the horizontal muscle core 5a in the horizontal direction by the dimension of the diameter of the first horizontal muscles 5, 5 of the other base muscle 2 to be connected like the horizontal muscle core 5b. The length from the step portion 14A to the end is set to be 40 to 50 times the outer diameter of the first horizontal bar 5A, 5 and is selected so as to satisfy the building work standard when connecting the reinforcing bar units to each other. You. If the first horizontal muscles 5 of the adjacent base muscles 2 are applied and bound so as to be fitted to the step portions 14A of the first horizontal muscles 5A of the base muscles 2A arranged at the corners, the horizontal muscles of the first horizontal muscle 5A of the base muscle 2A The axis 5a is aligned with the horizontal axis 5c of the first horizontal line 5 in the other base muscle 2, so that alignment between the two base muscles 2A and 2 can be easily obtained. In this example, the step portion 14A of the base streak 2A is formed so as to protrude outside the corner portion, but it is a matter of course that the step portion 14A may be formed inside. Instead of shifting horizontally, a stepped portion shifted upward or downward may be provided at the end of the first horizontal streak 5A. In that case, the first horizontal line 5A and the first horizontal line 5 overlap. The base streaks 2A at the corners may be appropriately cut from the standardized base streaks 2B (see FIG. 12) used in the T-shaped portion and the cross portion as described below. And
As shown in FIG. 11, a 45-degree oblique butting state can be provided, and an oblique reinforcing bar 2m can be provided to integrally fabricate in advance.

In the T-shaped portion, as shown in FIG. 12, a step for connecting the first horizontal line 5 of the other base line 2 to the tip of the first horizontal line 5B is also provided to the base line 2B located at the intersection. The part 14B is formed. Since alignment with the base muscles 2 and 2 arranged on the left and right of the base muscle 2B can be taken, positioning with the other base muscle 2C arranged so as to intersect also becomes easy. The central portion of the first horizontal muscle 5B of the base muscle 2B and the tip of the first horizontal muscle 5C of the base muscle 2C intersecting therewith are bound by the number line 15 via the L-shaped muscle 13. When a cross portion is formed, another base line may be disposed on the opposite side of the base line 2C in the same manner as in the case of the T-shaped portion. On the other hand, the upright streaks 3 are also manufactured in a standard size having step portions 14C provided on both sides of the first streaks 7 as shown in FIG. Can be used in common in the T-shaped part and the cross part, and it can be understood that positioning and alignment adjustment are easy.

By the way, what is most problematic in assembling the reinforcing bar unit is the rising bar at the corner. The rising line 3M is configured as shown in FIG. An odd number of second longitudinal stripes 8M, 8M are attached to the first longitudinal stripes 7M, 7M, and the first longitudinal stripes 7M, 7M are similar to FIG.
In order to connect and secure the tip portions of the first vertical bars 7, 7 of the other rising bars 3 to both end portions of the first vertical bar 7,
The longitudinal muscle core 7a by the dimension d corresponding to the diameter of the longitudinal muscle axis 7b
The step portion 14 shifted in the horizontal direction as shown in FIG.
Such a rise muscle 3M, at the site of the second vertical stripe 8M ₁ located in the center the second vertical stripe 8M ₁ is fabricated bending and so that the inside. This can be done by using, for example, the riser 3 manufactured for the T-shaped portion and the cross portion shown in FIG. 13, and both of the first vertical stripes 7, 7 are perpendicular to each other like the first vertical stripe 7M in FIG. 14. Can be bent. In this manner, the first vertical line in the rising streak 3M is placed on the base streaks 2A, 2A of the corner portion shown in FIG. The vertical line axis 7a of the line 7M and the vertical line axis 7c of the first vertical line 7 in the other standing line 3 coincide with each other, so that accurate positioning and alignment can be obtained. It is not necessary to attach the securing device 9 for locking the rising muscle 3M to the diagonal reinforcement 2m, and it is sufficient to attach it to the second horizontal muscle 6, 6 as shown by the broken line in FIG. It is. Such a riser 3M
This eliminates the need for the work of connecting two rising streaks in a rectangular shape, and prevents the corner sections from being insufficiently connected due to a hand-cutting operation or the like. Of course, the misalignment between the rising streaks arranged at the corners and the rising streaks adjacent thereto is reduced, and the labor for alignment is also reduced. In this way, since the longitudinal streak axis of the first longitudinal streak between the adjacent rising streaks can be matched, the installation accuracy of the reinforcing bar unit for reinforcing the fabric foundation is improved. In addition, the riser for the corner portion does not need to be manufactured only for that purpose, and the riser used in the T-shaped portion and the cross portion may be bent, so that the number of standard products is reduced and the productivity is reduced. Improvements and lower prices can be achieved.

[Brief description of the drawings]

FIG. 1 is a perspective view of a reinforcing bar unit which is locked by using a tying device and is self-supported and assembled in an inverted T-shape.

FIG. 2 is a perspective view of a single unit showing a detailed shape of an example of a lashing device.

FIG. 3 is an explanatory view of an operation when the rising muscle is locked to a lashing device attached to a second horizontal muscle of the base muscle.

FIG. 4 is a sectional view taken along the line IV-IV in FIG. 3;

FIG. 5 is an explanatory diagram of an operation when inserting the robot in a state where the rising muscle is tilted or in a state where the rising muscle is tilted.

6 is a sectional view taken along line VI-VI in FIG. 5;

FIG. 7 is an explanatory view of the operation when the riser is locked to a lashing device having different side wall cutout grooves.

FIG. 8 is a sectional view taken along line VIII-VIII in FIG. 7;

FIG. 9 is an explanatory view of the operation when the upright stud locked by the lashing device having different side wall cutout grooves is tilted or inserted in a state where the upright stoop is tilted.

FIG. 10 is a sectional view taken along line XX of FIG. 9;

FIG. 11 is a plan view when a base streak having a step at the end of a second horizontal streak is arranged at a corner.

FIG. 12 is a plan view illustrating a connection form of base streaks in a T-shaped portion.

FIG. 13 is a front view of a standardized rising streak that can be commonly used in a corner portion, a T-shaped portion, and a cross portion by providing a step portion at both ends of a first vertical streak.

FIG. 14 is a perspective view of a rising line used in a corner portion.

[Explanation of symbols]

1 ... Reinforcing bar for concrete reinforcement, 2 ... Base bar, 3,3M
... Rising streaks, 4a, 4b ... side wall surfaces, 4c ... top top surfaces, 4A
... clamping part, 4g ... front end side, 4h ... rear end side, 5 ... first horizontal streak, 6 ... second horizontal streak, 7, 7M ... first vertical streak, 7A ... first vertical streak located at the lower stage, 7a ... vertical stripe axis core, 8,8M ... second vertical stripe, the second vertical stripe located 8M ₁ ... center, 9 ... lashing device,
10 ... side wall cutout groove, 10a ... rear end side closed part, 11 ... top top cutout groove, 11a ... rear end side closed part, 12, 12A ... concave part, 14 ... stepped part, W ... gap for pressing, Y ... top Left and right width of the top face, d: Dimension of the diameter of the first vertical streak.

Claims (4)

(57) [Scope of request for utility model registration] 1. A base streak comprising a plurality of first horizontal streaks arranged in parallel in a horizontal plane and a plurality of second horizontal streaks passed orthogonally between the first horizontal streaks, and horizontally in a vertical plane. A riser having a plurality of first longitudinal streaks arranged and a plurality of second longitudinal streaks passed orthogonally between the first longitudinal streaks, and the first longitudinal streak orthogonal to the second horizontal streak. In the securing device of the reinforcing steel unit for concrete reinforcement, the rising bars and the base bars have an inverted T-shape. A side wall surface rising on the left and right sides of the second horizontal streak, and a top surface continuous at an upper portion of the both side wall surfaces. While a squeezing portion having a squeezing interval that can be held is provided, the left and right widths of the top surface are smaller than the squeezing interval. At the substantially middle height portion of each of the side wall surfaces, a first vertical streak which is opened at an edge of the front end side of the side wall surface and extends to the rear end side and is located at least in a lower stage of the rising streaks is provided. A side wall cutout groove that can be inserted is formed, and the upper top surface is opened at an edge of a front end side of the upper top surface and extends to the rear end side, and the second vertical streak of the rising muscle is inserted. A securing device for a reinforcing bar unit for a building foundation, characterized in that a top notch groove is formed. 2. The concave portion for engaging a part of the cross section of the first vertical streak is formed in a rear end side closing portion of the side wall cutout groove. Fasteners for rebar units for building foundations. 3. A base streak comprising a plurality of first transverse streaks arranged in parallel in a horizontal plane and a plurality of second transverse streaks passed orthogonally between said first streaks, and a horizontal streak in a vertical plane. A plurality of first vertical streaks arranged and a riser including a plurality of second vertical streaks passed orthogonally between the first vertical streaks, and the first vertical streaks are provided in the second horizontal streaks. A concrete reinforcing reinforcing unit which is locked in a state where it is mounted orthogonally, and wherein the rising bars and the base bars have an inverted T-shape. The securing device according to claim 1 or 2, In a state in which the side wall surface of the lashing device holds the second horizontal streak, the first vertical streak positioned below the rising streak is inserted into the side wall cutout groove, and is fixed to the first vertical streak. The second vertical streak is inserted between the side wall surfaces, and the first vertical streak and the second vertical streak are placed on the second horizontal streak of the base streak. The second vertical streak was inserted into the top notch groove, and was inserted up to the rear end side closing portion, and leaned, and the first vertical streak and the second vertical streak of the rising stride were mounted on the second horizontal streak. In the state, the rising bars are assembled in an inverted T-shape perpendicular to the base bars. 4. An inverted T-shaped concrete together with a base bar having a plurality of first horizontal bars arranged in parallel in a horizontal plane and a plurality of second horizontal bars passed orthogonally between the first horizontal bars. Used to form a reinforcing bar unit, a plurality of first vertical bars arranged horizontally in a vertical plane and a plurality of second vertical bars passed orthogonally between the first vertical bars. In the rising muscle provided, an odd number of second longitudinal muscles are attached to the first longitudinal muscle of the rising muscle, and at the portion of the second longitudinal muscle located at the center, the second longitudinal muscle is located inside. Both of the first longitudinal muscles are bent at a right angle when viewed in a plan view, and at both end portions of the first longitudinal muscle, to connect and secure the tip portion of the first longitudinal muscle of the other rising muscle, A step formed by displacing the longitudinal streak axis by the dimension of the diameter of the first longitudinal streak to be connected; Rising muscle for the foundation for the reinforcement unit.