JPH02161070A - Buried concrete structure - Google Patents

Abstract

PURPOSE:To install a buried structure easily to a reinforcement, and to improve operating efficiency by integrally mounting a support member on the reverse side of an opening section. CONSTITUTION:A support member 1 is set and built to a reinforcement 5 as the support rib of a concrete wall in a bendable manner. A mounting section 2 is installed by a means such as a screw in order to fit the support member 1 to a buried structure 4 while the buried structure 4 is kept under a closed state under the state in which the buried structure 4 is pushed against forms 6. Various modes are taken according to the shapes of the buried structure 4 regarding the shapes of the mounting section 2. The pushing of the support member 1 is applied uniformly to the buried structure 4 and adhesive properties to the forms 6 are improved, and various correspondence is enabled by adjusting the state of bending.

Description

Detailed Description of the Invention (Industrial Application Field) The present invention relates to various types of concrete buried objects (hereinafter referred to as
related to buried objects).

(Prior Art) The present inventor first erected a buried object on the reinforcing bars forming the supporting frame of a concrete wall, determined the position of the object, and then placed the concrete by bringing the form into contact with the buried object. So, we came up with a method to bury the buried objects inside the concrete wall. According to this method, objects can be buried easily and quickly, improving work efficiency, and it is different from the conventional method of fixing objects by nailing them to formwork. In comparison, it does not require the complicated work of nailing, does not require nail treatment after removing the formwork, and has the remarkable effect of not causing stains on the wall surface due to nail rust.

(Problems to be Solved by the Invention) The present invention was made as part of such development, and when burying objects, it is possible to freely set the installation state of the reinforcing bars that make up the supports of concrete walls, and to An object of the present invention is to provide a buried object that can be easily and quickly erected to reinforcing bars, thereby increasing work efficiency.

(Means for Solving the Problems) That is, the buried object according to the present invention is a linear object that can be bent by hand and has a tensile strength that can suppress the opening of the buried object in the formwork in the bent state. The support member is integrally provided on the opposite side of the opening.

(Example) Hereinafter, a buried object according to the present invention will be explained according to the drawings.

There are two types of buried objects according to the present invention: those in which a supporting member is integrally provided through a mounting part that is attached to the buried object, and those in which a supporting member is integrally provided directly on the buried object. The structure of the construction tool, which consists of a part and a support member, and is attached to a buried object is shown in Figures 1 to 33, and the latter is shown in Figures 34 to 48. .

In FIGS. 1 and 2, the support member (1) is a part that is installed on reinforcing bars (5) that form the support frame of a concrete wall. The support member (1) can be bent by hand, and the bending direction can be freely set. As for the specific shape of the linear support member (1), there are various possibilities such as one with a circular cross section, one with a square cross section, or one with a flat shape, but in particular, it is difficult to construct the support member (1) on the reinforcing bars (5) that form the support frame. ease of doing,
Furthermore, from the viewpoint of flexibility in bending direction, those with a circular cross section are superior. Specifically, it is commonly called a wire, and among them, mild steel wire around number 8 is optimal. In addition, the support member (1
) has a tensile strength that can press the buried object against the formwork in a bent state, and as shown in Figure 1,
When the buried object (4) is pressed against the formwork (6),
In response to the force applied to the buried object (4) in the direction of the arrow (6I), the support member (1) is bent and the buried object (4) is moved in the direction of the arrow (62) to face it. It has a pressing force that makes it tense. In this state, the buried object (4) is kept pressed against the formwork (6) by the supporting member (1) in a close state.

The attachment part (2) has a structure for attaching the support member (1) to the buried object (4). There are numerous methods of attachment, including attachment with screws and attachment by fitting. The shape of the attachment part (2) takes various forms depending on the external shape of the buried object (4). However, as shown in Figure 2,
From the viewpoint of adhesion to the formwork, it is preferable that the buried object (electrical wiring box) (4) be pressed by the support member (1) in a negative direction (arrow (63)).

From Figure 3 to Figure 11, electrical wiring boxes (1
0) is an example. FIG. 3 is a plan view of the erection tool, and FIG. 4 is a cross-sectional view (A-A) of the erection tool. In this example, it consists of a linear support member (11) that can be bent by hand and a plate-shaped attachment part (12), and the support member (11) is arranged in parallel on both sides of the attachment part (12). There is. Mounting part (12
) has a cut-and-raised projecting piece (13) that fits into a hole (18) provided in the bottom wall of the box (10).

The support member (11) is fitted into four parts (14) formed in a semicircular arc shape in cross section on both sides of the attachment part (12), and is fixed to the attachment part (12) by spot welding.

For example, the recess (14) of the mounting portion (12) is formed of an elastic member, and the inner diameter of the recess (14) is smaller than the diameter of the support member (11).
The support member (11) is forcibly separated into four parts (1) by making use of its elasticity.
4), or the supporting member (11) may be simply fixed to the mounting portion (12) by spot welding without forming the fourth portion (14).

(15) is a screw hole, and the mounting part (12) is connected to a box (l).
When attached to the box (10), it is formed to match the through hole (17) provided in the box (10). A separate stud bolt having a male thread is screwed into the screw hole (15) and the through hole (17).

This is used to more reliably and closely fix the box (10) and the formwork (6) when installing the box (10) on a wall. Therefore, when the screw hole (15) is not required, such as when installing the box with a slab, it is sufficient to provide a cover (19) thereto and seal it as shown in FIG. Alternatively, the screw hole (15) may be omitted. (16) is a reinforcing rib for preventing deformation of the attachment part (2).

FIG. 6 shows a cross-sectional view of the erection tool attached to the box (10). In this example, the box (1
An insertion hole (18) into which the protrusion (13) of the attachment part (12) is inserted is formed in the outer wall of the housing (0). First, the protruding piece (13) of the mounting part (12) is directed toward the outer wall of the box (10), and then inserted into the insertion hole (18) formed in the outer wall of the box (10), and the protruding piece (13) The tip of the box (10) is made to protrude inside the box (10). Next, this protruding portion is bent toward the inner wall of the box (10) as shown in FIG. At this time, as shown in FIG.
If the attachment part (12) is bent in the opposite direction as shown in the figure, it becomes difficult to remove the attachment part (12) from the box (10). In this way, the outer wall of the box (10) is held between the projecting pieces (13) and the mounting portion (12) is fixed to the box (10).

This structure allows the installation tool to be attached to the box (10).

Next, use the box (10
) is buried in a concrete wall constituting the wall surface. When burying the box (10), first, the linear support member (11) is bent by hand so that it comes into contact with the reinforcing bars (5) that are run around to form the supporting frame of the concrete wall. At this time, the degree of bending of the support member (11) is adjusted so that the box (In) is in a position to be buried in the concrete wall. Since the support member (11) can be bent by hand, adjustment can be easily performed. Next, wire (7) is used to connect the supporting member (11) and reinforcing bar (5)
etc., and the supporting member (11) is installed on the reinforcing bars (5). In this way, the box (10) is set in the stirrup at a predetermined buried position as shown in FIG. In the figure, (8) is the conduit that connects to the box (10), and (9) is the conduit that connects to the box (10).
10) and the electric conduit (8).

Next, as shown in FIG. 1O, the formwork (6) is brought into contact with the opening of the box (10). At this time, the tensile strength of the support member (11) pushes the box (10) in the direction of the arrow (66), and the box (10)
) is kept in close contact with the

In the present invention, since the support member (11) can be bent freely by hand, even if reinforcing bars (5a) are arranged as shown by dotted lines in FIG. (lla) can be easily bent as shown by the dashed line in FIG. 1D and installed on the reinforcing bars (5a). Further, depending on the reinforcement arrangement of the reinforcing bars (5), one of the supporting members (11) may be installed on the reinforcing bars (5b) running vertically in FIG. 10.

When the support member (11) is installed on the reinforcing bars (5) in this way and the formwork (6) is brought into contact with the opening of the box (10),
Next, concrete is poured and the box (10) is buried in the concrete wall (90) as shown in FIG.

The above-mentioned embedding method is an example of a method of burying the box (10) in a concrete wall that constitutes a wall surface. For example, the box (10) is buried in a concrete wall that constitutes a slab.
), it is of course possible to use the erection tool of the present invention even in a method in which the formwork (6) is first propped up and the box (10) is brought into contact with it. be. In this case, the box (lO) is attached to the formwork (6)
The support member (11) of the erection tool may be bent by hand so that the opening of the box (io) is brought into contact with the formwork (6), and then the support member (11) of the erection tool may be bent over the reinforcing bars (5).

12 to 14 show other examples of the box (10). In this example, the mounting part (12) of the erection tool has a hole (20) instead of a protrusion (13).
It has been established. The outer wall of the box (10) is provided with a hole (21) that matches the hole (20). In this case, the installation of the erection tool to the box (10) is done in the first
Insert the self-tapping screw (22) into the hole (20) as shown in Figure 3.
and the hole (21), and attach the installation tool to the box (10).
Alternatively, as shown in Fig. 14, the bolt (23) can be passed through the hole (20) and the hole (21), and the nut (24) can be inserted from the tip of the bolt (23) that has passed through it. It is also possible to attach the construction tool to the box (10) by screwing it on.

Next, an example of an installation tool to be attached to an end cover (30) and a temporary frame bushing (40), which are terminal protectors used at the terminal of a conduit, will be described.

15 to 18 show examples of the end cover (30). In this example, there is a linear support part (31) that can be bent by hand, and a support part (31) on one side.
1) and an abbreviated-shaped mounting part (32) with an insertion hole (33) provided on the other side.

The support part (31) is attached to the mounting part (32) by spot welding.
Fixed.

In this example, the erection tool is mounted so as to be sandwiched between the connector (34) and the front wall surface of the end cover (30). That is, the connector (3) is inserted into the insertion hole (33) provided in the mounting part (32) of the erection tool.
4) Insert the male threaded part (35) formed at one end of 1
Next, insert the male threaded portion (35) of the connector (34) into the mounting hole (36) provided on the front wall of the end cover (30).
Insert into. Next, by screwing in the stopper (37) having a female thread that engages with the male threaded portion (35) of the connector (34) from inside the end cover (30), the first
It is installed as shown in Figure 6.

In order to bury the end cover (30) with mounting tools attached in this way in the concrete wall that constitutes the slab, first
As shown in Fig. 7, first, the support part (31) of the erection tool is bent by hand so that it comes into contact with a nearby reinforcing bar (5). Then insert the opening of the end cover (30) into the formwork (6).
(see FIG. 18) so that the end cover (30) is kept in close contact with the formwork (6) by the pressing force of the support part (31). Next, the portion where the support portion (31) and the reinforcing bar (5) are in contact is tied together with a wire (7) or the like. In this way, the support part (31) is installed on the reinforcing bars (5), and the end cover (30) is installed at a predetermined buried position. Then, concrete is poured and the end cover (30) is buried in the concrete wall (90) as shown in FIG.

In addition, when burying the end cover (30), first bend the support part (31) and erect it on the reinforcing bars (5), and then bring the formwork (6) into contact with the end cover (30). Also good.

19 and 20 show another example of the end cover (30
). In this example, one side of the abbreviated mounting portion (32) that fixes the linear support portion (31) is formed to follow the shape of the back wall surface of the end cover (30). has been done. Mounting part (32) like this
is formed to follow the shape of the back wall surface of the end cover (30), so that when the support part (31) is installed on the reinforcing bars (5), the end cover ( 30) directly on the end (30a) of the support part (3I)
Due to the pressing force applied, the end cover (30) is attached to the formwork (
6) can be kept in close contact with the Therefore, it is possible to prevent the intrusion of dirt due to concrete pouring, and it is also possible to prevent the end portion (30a) from floating easily due to the state of connection with the electric conduit (8).

From Figure 21 to Figure 24, temporary frame bushing (40)
This is an example. In this example, there is a disk-shaped attachment part (42) with an insertion hole (43) in the center, and a linear support part (41) that can be bent by hand and fixed to the attachment part (42) by spot welding. ). To attach the erection tool to the temporary frame bushing (40), first connect the mounting part (42) to the connector (44) and the temporary frame bushing (40).
) and the insertion hole (43) of the mounting part (42).
into the mounting hole (46) of the temporary frame bushing (40). Next, from above, the male threaded portion (44) of the connector (44)
5) into the insertion hole (43) and the attachment hole (46).

Then, from inside the temporary frame bushing (40), insert the male-threaded stop (47) into the female-threaded portion (44) of the connector (44).
45) and attach the erection tool to the temporary frame bushing (40) as shown in FIG.

FIG. 23 shows the state in which the temporary frame bushing (40) to which the erection tool is attached is installed on the reinforcing bars (5). In this case, first open the opening of the temporary frame bushing (40) in the formwork (
6) (See Figure 24), and in this state, bend the support part (41) of the erection tool by hand and attach it to the reinforcing bar (5).
let them come into contact with Next, the touching portions are tied together with a wire (7) or the like, and the support portion (4I) is constructed on the reinforcing bars (5). At this time, the temporary frame bushing (40) is kept in close contact with the formwork (6) by the pressing force of the support portion (41). In this way, the temporary frame bushing (40) is installed at a predetermined buried position.

Next, concrete is poured and the temporary bushing (40) is buried in the concrete wall (90) constituting the slab, as shown in FIG.

Next, an example of the insert (50) will be explained.

25 to 28 are examples of the insert (50). In this example, insert (50)
It has an inner shape that matches the outer shape of the head of the insert (
50) A mounting part (52) with a fitting part (53) that fits into the head, and a linear support that can be bent by hand and fixed by spot welding to the top surface of the mounting part (52)! (5
It consists of 1). In this example, the mounting part (52)
The fitting part (53) is made of an elastic material, and is forced outward and fitted into the head of the insert (50) as shown in Fig. 26 to prevent it from coming out. Then, the erection tool is attached to the insert (50).

FIG. 27 shows a state in which the insert (50) with the installation tool attached is installed on the reinforcing bars (5). In this case, first insert the bottom of the insert (50) into the formwork (6) (28th
(see figure), and the support part (51) of the erection tool is brought into contact with the reinforcing steel (
5) Fold it by hand so that it touches . Next, the support part (5
1) and the reinforcing bar (5) are tied together with a wire (7) or the like, and the support part (51) is constructed on the reinforcing bar (5). At this time, the insert (50) is kept in close contact with the mold (6) by the pressing force of the support part (51). thus,
The insert (50) is installed in a predetermined buried position. Next, concrete is poured and the insert (50) is buried in the concrete wall (90) constituting the slab as shown in FIG.

Figures 29 to 33 show the insert (50) separately, and the support part (51) is not spot welded, but has four elastic parts (54) formed in the mounting part (52). It was designed to be fixed by.

In this example, the opening (55) of the recess (54) is
It is slightly narrower than the diameter of 1). Also, part 4 (5
4) is adapted to match the diameter of the support portion (51). As shown in FIGS. 31 to 33, the support part (51) is pressed against the opening (55) of the recess (54), and the opening (55) of the recess (54) is pushed outward. Push in the support part (51) so as to spread it out, and then press in the four parts (55).
By fitting the support part (51) inside the support part (
51) is fixed to the mounting portion (52). The attachment portion (52) in this case is preferably made by resin molding.

Next, a buried object according to the present invention in which a linear support member installed on reinforcing bars forming a support frame of a concrete wall is directly integrated with the buried object will be described.

The support member can be bent by hand, similar to the buried object in which the support member is attached to the body via the mounting portion, and has a tensile strength that allows the buried object to be pressed against the formwork in a bent state. It has the following. Therefore, the buried object is positioned at a predetermined buried position by bending the support member, and is further maintained in close contact with the formwork. The specific shape of this linear support member may be circular, square, or flat in cross section, especially considering the ease of installation on the reinforcing steel that forms the support frame, and the ease with which it can be bent. A linear type is superior in terms of flexibility in direction. Specifically, mild steel wires, commonly called wires, around No. 8 are optimal.

Hereinafter, a box (10) and an insert (50) for electrical wiring will be described as examples of buried objects according to the present invention.

Figures 34 to 36 show electrical wiring boxes (
10) - This is an example. In this example, linear support members (71) that can be bent by hand are arranged side by side and fixed to the outer wall of the box (10) by spot welding.

In order to bury this box (10) in a concrete wall constituting the wall surface, first, with the box (10) at a predetermined embedding position, the support member (71) is wrapped around to form a support of the concrete wall. Bend it by hand as appropriate so that it touches the reinforced reinforcing bar (5). And the support member (71) and the reinforcing bars (
5) Bind the part where it touches with wire (7) etc. In this way, as shown in FIG. 35, the support member (
71) is installed on the reinforcing bars (5), and the box (10) is positioned. Next, the formwork (6) (see FIG. 36) is brought into contact with the opening of the box (10). At this time, the box (
10) is kept in close contact with the formwork (6). After that, concrete is poured and the box (10) is buried in the concrete wall (90) as shown in FIG.

Note that, unlike the above-mentioned burying method, the formwork (6) is first propped up and the box (10) is brought into contact with it, and the supporting member (71) is later erected on the reinforcing bars (5) for burying. The present invention can also be applied to methods.

The support member (71) in the above example is fixed to the outer wall of the box (10) by spot welding and is formed integrally with the box (10), but the means for fixing the support member (71) is different from this. It is not limited.

From FIG. 37 to FIG. 39, boxes (
This is another example of 10), in which a support member (71) is fixed to the lower surface of the head of a screw (72) and is formed integrally with the box (10). That is, a groove (73) into which the support member (71) is fitted is provided on the outer wall of the box (10), a screw (72) is fixed near the groove (73), and the lower surface of the head of the screw (72) is inserted into the groove (73). The fitted support member (71) is pressed and fixed, and is formed integrally with the box (10). In this case, insert the screw (72) into the groove (73) as shown in Figure 38.
By screwing into a prepared hole (74) formed nearby, the support member (71) is strongly tightened and firmly fixed to the box (10).

In this example, by adjusting the screwing of the screw (72) into the pilot hole (74), the support member (7
1) can be fixed. Incidentally, the screw (72) may be a tapping screw.

Note that (75) is a screw hole for inserting a stud bolt, and the screw hole (75) may not be provided in the present invention.

FIG. 39 shows the box (10) installed on reinforcing bars.

FIG. 40 shows another example of the box (]0) according to the present invention. In this example, the supporting member (71) is formed integrally with the caulking box (10) by a cut-and-raised protrusion (76) provided on the outer wall of the box (10). In this case, the protrusion (76) is the 41st
As shown in the figure, it may be a protruding piece with one end cut off, or it may be an undulating piece with both ends connected to the bottom wall of the box (lO) as shown in FIG. 43. In the case of the example shown in FIG. 41, the support member (71) is connected to the projection (76).
), and then as shown in FIG.
71) is fixed by crimping it so as to wrap it around it. In the case of the example shown in FIG. 43, the supporting member (7]) is connected to the projection (76)
the protrusion (7) as shown in Fig. 44.
6), the support member (71) is caulked and fixed.

In the example shown in FIG. 45, a linear support member (71) is provided in the shape of a cross on the outer wall of the box (10). When the support member (7I) is thus provided in a cross shape on the outer wall of the box (10), the support member (71) can be installed on the reinforcing bars (5) over a wide range in the vertical direction.

Next, the insert (50) according to the present invention will be explained.

FIG. 46 to FIG. 47 show inserts according to the present invention (
50) is an example. In this example case.

Linear support members (81) that can be bent by hand are arranged side by side and fixed to the head of the insert (50) by spot welding to form one body with the insert (50).

To embed this insert (50) in a concrete wall constituting a slab, the bottom of the insert (50) is brought into contact with the formwork (6). And insert (
50) is at the predetermined buried position, the support member (81)
Insert the reinforcing bars (5
).Fold it by hand as appropriate so that it touches the Next, the support member (
81) and the reinforcing bar (5) are tied together with a wire (7) or the like, and the support member (81) is installed on the reinforcing bar (5) as shown in FIG. 47. At this time, the insert (50) is kept in close contact with the formwork (6) due to the tensile strength of the support member (81). Concrete is poured in this state, and the insert (50) is placed as shown in Fig. 48.
is buried in the concrete wall (90).

Figures 49 and 50 show the insert (5) according to the present invention.
0) is distinct. In this example, insert (5
0) is formed with an elastic recess (82) in the head thereof.

A linear support member (81) that can be folded by hand is fitted into this, and is formed integrally with the insert (50). In this example, the opening of the recess (82) is
It is slightly narrower than the diameter of 1), and the recess (
The inner diameter of the support member (82) matches the diameter of the support member (81). Therefore, the support member (81) fitted into the recess (82) is clamped and fixed inside the recess (82).

(Effects of the Invention) In the buried object according to the present invention, the supporting members integrated with the buried object can be bent by hand, so if these supporting members are deformed and installed on reinforcing bars, the buried object can be placed at the desired location. It can be easily installed. Therefore, the buried object can be installed quickly and the buried object can be buried efficiently.

Further, since the support member can be bent freely by hand, various measures can be taken depending on the situation of the installation location of the buried object by adjusting the degree of bending.

In addition, since the support member has tensile strength capable of pressing the buried object against the formwork in a bent state, the buried object can be reliably kept in close contact with the formwork.

Furthermore, the buried object according to the present invention can also be used in a construction method using a recently developed plastic formwork (6a) (see FIG. 51). In this case, compared to the conventional method of fixing the buried object (the electrical wiring box in the figure) to the formwork by gluing it with tape, if the buried object according to the present invention is used, the supporting member can be attached to the formwork (6a ), it has a tensile strength that can press the buried object, so the buried object can be more firmly fixed.

[Brief explanation of the drawing]

1 and 2 are a side view and a plan view for explaining the operation of the buried object according to the present invention in a state of use, and FIG.
The figure is a plan view of the erection tool, and Figure 4 is the A-A of the erection tool in Figure 3.
The sectional views and FIGS. 5 to 15 show an example of a buried object using a box as an example. FIG. Figure 7 is a cross-sectional view showing the structure of the installation tool installed in the box, Figure 8 is a cross-sectional view of the installation tool installed in the box with a lid, and Figure 9 is a cross-sectional view of the installation tool installed on the box. Figure W410 is a side sectional view of the box in the installed state, Figure 11 is a side sectional view of the box buried in a concrete wall, and Figures 12 to 14 are Another example is shown in Fig. 12, which is a perspective view of the installation tool before it is attached to the box, Fig. 13, which is a cross-sectional view of the installation tool that is attached to the box using self-tapping screws, and Fig. 14, which shows the bolt and nut. 15 to 18 show an example of a buried object using an end cover as an example. Figure 16 is an exploded perspective view before installation, Figure 16 is a side sectional view of the installation tool installed on the end cover, Figure 17 is a perspective view of the installation installed on reinforcing bars, and Figure 18 is of the installation installed in a concrete wall. The side sectional view, FIGS. 19 and 20 show other examples of the installation tool attached to the end cover, and FIG. 19 is a perspective view of the installation tool installed on the reinforcing bars, and FIG. Figure 20 is a side sectional view of the state where it is buried in a concrete wall, and Figures 21 to 2
Figures up to Figure 4 show an example of a buried object using a temporary frame bushing as an example, Figure 21 is an exploded perspective view of the construction tool before it is attached to the temporary frame bushing, and Figure 22 is an exploded perspective view of the construction tool before it is attached to the temporary frame bushing. Figure 23 is a side sectional view of the product installed on the frame bushing, Figure 23 is a perspective view of the product installed on reinforcing bars, Figure 24 is a side sectional view of the product buried in a concrete wall, and Figures 25 to 28 are the inserts. Fig. 25 is a perspective view before the installation tool is attached to the insert, Fig. 26 is a side sectional view with the installation tool attached to the insert, and Fig. 27 is an example of a buried object. Figure 28 is a perspective view of the structure installed on reinforcing bars.
The figure is a side sectional view of the state in which it is buried in a concrete wall.
9 to 33 show other examples of the insert, FIG. 29 is a perspective view before the installation tool is attached to the insert, FIG. 30 is a side sectional view showing the installation state of the installation tool, 31 to 33 are cross-sectional views for explaining the fixed state of the support member, and FIGS. 34 to 36 are examples of boxes that are buried objects according to the present invention.
Figure 4 is a perspective view of the box, Figure 35 is a perspective view of the box installed on reinforcing bars, Figure 36 is a side sectional view of the box buried in a concrete wall, and Figures 37 to 39 are other examples of the box. 37 is a perspective view of the box, FIG. 38 is a sectional view of the fixed part of the support member, FIG. 39 is a perspective view of the box installed on reinforcing bars, and FIGS. 40 to 44 are further details of the box. This is a different example, and FIG. 40 is a perspective view of the same.
1 to 44 are cross-sectional views for explaining the fixed state of the support member, FIG. 45 is a perspective view of another example of the box, and FIGS. 46 to 48 are buried objects according to the present invention. FIG. 46 is a perspective view of the insert, and FIG. 47 is a perspective view of the insert installed on reinforcing bars.
Fig. 48 is a side sectional view of the insert buried in a concrete wall, Figs. 49 and 50 are other examples of the insert, Fig. 49 is its perspective view, Fig. 50 is its sectional view, and Fig. 51 The figure is a side sectional view of a box embedded in a concrete wall using plastic formwork. In the figure, (]) (11) (31) (41) (5107)
) (81) is a support member, (2) (12) (32) (4
2) (52) is the mounting part, (4) is the buried object, (5) is the reinforcing bar, (6) is the formwork, (10) is the box, (30) is the end cover, (40) is the temporary frame bushing, (50) is an insert.

Claims (1)

[Claims] 1) A linear support member that can be bent by hand and has a tensile strength that can press the opening of the buried object in the formwork in the bent state is integrated on the opposite side of the opening. A concrete buried object characterized by being provided in. 2) The object buried in concrete is a box, and the support member is integrally provided on the bottom wall of the box by caulking the support member so as to wrap it around the support member with a protrusion cut into the bottom wall of the box. Objects buried in concrete as described.