JP3704658B2 - Construction equipment for concrete burying boxes - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a box erection tool used in construction for installing a box on a side wall made of concrete, and more specifically, erection for supporting the box in close contact with a formwork when forming the side wall of concrete. Concerning ingredients.
[0002]
[Prior art]
In Japanese Patent Application Laid-Open No. 60-152747, as shown in FIGS. 10 and 11, a box is attached with a support bar that can be bent by hand and has a tensile strength that can be pressed against the formwork from the back side in the bent state. Then, the support rod of this box is fixed to the rebar that forms the support of the concrete wall, and the formwork is pressed against the box to bring it into close contact. It is disclosed that concrete is cast in that state and a box is embedded in the concrete wall.
[0003]
According to this method, there is an effect that the box can be installed according to the interval of the formwork by adjusting the bending state of the support bar.
[0004]
In such a conventional installation tool, a projecting piece provided on the installation tool is inserted into an insertion hole formed in advance on the back surface of the box, and this is bent and fixed. However, such a method has a drawback that both the box and the installation tool must have a structure corresponding to the attachment. For example, a mounting tool having a projecting piece cannot be attached to a box not provided with the insertion hole, and the structure of size, position, etc. must be adapted even if the insertion hole is provided. If it is, it cannot be attached.
[0005]
Further, when the box is covered with a heat insulating cover to prevent condensation, the insertion hole is covered with the cover and cannot be used. Of course, it is possible to form a hole corresponding to the insertion hole also in the heat insulating cover, but in this case, the heat insulating effect is remarkably impaired, and the occurrence of condensation cannot be prevented completely.
[0006]
[Problems to be solved by the invention]
Therefore, the present invention has been made to solve the above problems, and the problem to be solved is that the support rod can be easily and reliably attached regardless of the presence or absence of the box mounting structure and the shape. An object of the present invention is to provide a construction tool that can be attached to a support rod without hindering the heat insulation effect even in a box covered with a heat insulation cover, while providing a construction tool with excellent versatility.
[0007]
[Means for solving the problems]
In order to solve the above-mentioned problems, the means taken by the invention described in claim 1 of the present invention is the construction tool 100 for supporting the box 10 embedded in the concrete wall surface 50 to the rebar 80. A holding portion 21 for holding a linear support rod 30 having a tensile strength capable of supporting the box 10 and bendable by hand, and an adhesive surface 22 bonded to the outer surface of the box 10. A mounting member 20 that is disposed on a side or a corner and is bonded to the side surface and the back surface of the side or the corner over two or more surfaces, and an adhesive layer 40 provided on the bonding surface 22. A concrete embedding box erection tool 100 is provided.
[0008]
In order to attach the support rod 30 to the box 10, first, a holding portion 21 for attaching the support rod 30 is provided on the attachment member 20, an adhesive layer 40 is provided on the attachment member 20, and the box 10 is bonded to the box 10. Adopting the means of sticking. Thus, by adopting the means of adhesion, the support rod 30 can be attached to the box 10 regardless of the attachment structure of the box 10 and the attachment member 20.
Furthermore, when the construction tool 100 is bonded to the box 10, the bonding surface 22 is formed so that it can be bonded to two or more surfaces of the box 10. In this case, when the box 10 is installed in the formwork 70, the box 10 can be supported from two or more directions to prevent dropping. By adopting the means of supporting over two or more surfaces, it is possible to fix without shifting or peeling even if the means of adhesion, which is inferior in fixing force as compared with the protruding piece, is adopted. Moreover, the area of the bonding surface 22 can be reduced by providing bonding portions on the sides and corners of the box 10. Therefore, it can be attached without blocking the drawing hole (knock) for wiring or the like. Since the box 10 to which the support rod 30 is attached in this manner can adjust the bending state of the support rod 30 in accordance with the interval of the mold frame 70 as in the conventional case, the box 10 is always pressed against the mold frame 70. Can be installed.
[0009]
Furthermore, the means taken by the invention as claimed in claim 2 is that the construction tool 100 composed of two or more for supporting the box 10 embedded in the concrete wall surface 50 on the rebar 80, each construction tool 100 includes: A holding portion 21 for holding a linear support rod 30 that has a tensile strength capable of supporting the box 10 and is foldable by hand, and an adhesive surface 22 bonded to the outer surface of the box 10 The mounting member 20 disposed on the side or corner and bonded to the side surface and the back surface constituting the side or the corner over two or more surfaces, and the adhesive layer 40 provided on the adhesive surface 22.
The construction tool 100 of the concrete burying box is characterized by being attached to different parts of the box 10.
In this case, two or more installation tools are attached to different positions of the box 10 to counteract forces applied from various directions on the box 10. For example, as shown in FIG. 1, if it is attached to the opposite side of the box 10 in particular, it can be prevented from moving because it is restrained in the vertical direction by the installation tool.
[0010]
Further, the means taken by the invention described in claim 3 of the present invention has a dew condensation prevention cover 60 covering the outer surface, and in the construction tool 100 for supporting the box 10 embedded in the concrete wall surface 50, the box 10 A holding portion 21 for holding a linear support rod 30 that can be bent by hand and can be bent by hand, and an adhesive surface that is bonded to the outer surface of the dew condensation prevention cover 60. A mounting member 20 that is disposed at a corner and is bonded to two or more sides or a side surface or the back surface constituting the side and the corner, and an adhesive layer 40 provided on the adhesive surface 22. The concrete burying box erection tool 100 is made.
This is applied to the construction tool 100 attached to the box 10 covered with the dew condensation prevention cover 60. According to the second aspect of the present invention, the dew condensation prevention cover 60 can be attached by simply sticking it directly without making a hole. Furthermore, the anti-condensation cover 60 is often made of foamed polystyrene or the like, but it is well known that the foamed polystyrene is produced with a flat surface portion and a corner portion relatively strong due to its production method. Therefore, the foamed polystyrene itself may be damaged only by being attached to one surface of the box 10, but the damage can be prevented by providing it at the corners extending over two or more surfaces. Moreover, since the adhesive surface 22 is supported from two directions by bonding over two or more surfaces, it can be prevented from being peeled off. This means that the means of adhesion is weak in the peeling direction but relatively strong in displacement. Therefore, if two or more surfaces are bonded, when the attachment member 20 is peeled off, either surface is displaced, so that they are prevented from being peeled from each other.
[0011]
Furthermore, the means taken by the invention described in claim 4 of the present invention has a dew condensation prevention cover 60 covering the outer surface, and in the construction tool 100 comprising two or more for supporting the box 10 embedded in the concrete wall surface 50. And a holding portion 21 for holding a linear support rod 30 that has a tensile strength capable of supporting the box 10 and can be bent by hand, and an adhesive surface that adheres to the outer surface of the dew condensation prevention cover 60. A mounting member 20 disposed on a side or a corner and bonded to two or more sides or a back surface constituting the side or the corner, and an adhesive layer 40 provided on the adhesive surface 22. A concrete installation tool 100 for a concrete burying box, which is attached to a different part of the dew condensation prevention cover 60.
This is an application of the invention described in claim 2 to the box 10 provided with the dew condensation prevention cover 60.
[0012]
Further, according to the invention described in claim 5 of the present invention, the concrete burying box according to any one of claims 1 to 4, wherein the support rod 30 is fixed to the holding portion 21. The construction tool 100 of the above. This is because the support rod 30 is fixed to the mounting member 20 so that the support rod 30 can be quickly and easily provided in the box 10 and can be fixed securely. is there.
[0013]
Furthermore, the means taken by the invention described in claim 6 of the present invention is characterized in that the holding portion 21 includes an insertion hole 23 through which the support rod 30 can be inserted. The construction tool 100 of the concrete burying box. The thickness and length of the support bar 30 can be adjusted according to the place where the box 10 is used and the arrangement of the supporting rebar 80 to be attached.
[0014]
Further, the means taken by the invention described in claim 7 is that the mounting member 20 is formed in a portion corresponding to a hole formed in the box 10 for drawing out wiring and piping, and two notches are formed on the side surface of the box and on the back surface. It is set as the installation tool of the concrete burying box in any one of Claim 1 to 6 characterized by the above-mentioned.
This secures a space for drawing out wiring and piping. Since the attachment member 20 of the present invention is attached to a corner, even if a hole for a drawer is formed on the side surface or the back surface of the box, it is possible only by providing a cutout without obstructing.
[0015]
Further, the means taken by the invention described in claim 8 of the present invention is characterized in that the adhesive layer 40 is made of a material which can be bonded by being melted by heating and then cured. The construction tool 100 of the concrete burying box according to any one of the above is used. This is a hot melt type material used for the adhesive layer 40. For example, the thing using EVA (ethylene vinyl alcohol) etc. can be considered. Since it can be bonded by simply melting it by heating, it can be bonded simply by warming the adhesive layer 40 on the spot, which is very convenient.
[0016]
Furthermore, the means taken by the invention described in claim 9 of the present invention includes a dew condensation prevention cover 60 that covers at least a part of the outer surface, the box 10 embedded in the concrete wall surface 50, and can be bent by hand, and A linear support rod 30 having a tensile strength capable of supporting the box 10, and an adhesive surface for bonding to the outer surface of the holding portion 21 and the anti-condensation cover 60 for holding the support rod 30 , at the sides and corners A mounting member 20 that is disposed and is bonded to two or more side surfaces or back surfaces constituting the sides and corners, and the dew condensation prevention cover 60 and the bonding surface 22 are bonded to each other. A box 10 having a tool 100 is provided. This relates to the box 10 to which the installation tool 100 according to claim 2 is attached.
0000
Furthermore, the means taken by the invention described in claim 10 of the present invention is characterized in that the attachment surface of the mounting member 20 is bonded to the opposite side surface of the box 10 and bonded to the back surface. The box 10 is provided with the installation tool 100 according to claim 9.
[0017]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
(Example 1)
FIG. 1 shows a first embodiment of a construction tool 100 according to the present invention and a box 10 embedded in a concrete wall surface 50 by the construction tool 100. The installation tool 100 of the present invention includes an attachment member 20 that holds a support rod 30 made of a linear member, and an adhesive layer 40 provided on the attachment member 20. The box 10 is formed in an opened box shape, and various parts such as a unit for electric wiring can be attached from the opening 11. The box 10 is finally buried with the opening 11 exposed on the surface of the concrete wall surface 50 (FIG. 6). Therefore, a plurality of holes (knocks) can be formed so that wiring and the like can be taken out from the box 10 into the concrete wall surface 50. Specifically, as shown in FIG. 2, a notch 12 is formed around the knock, and the knock can be easily provided by cutting along the notch 12.
[0018]
The support bar 30 is provided between the rebars 80 constituting the support of the concrete wall 50 to support the box 10. As will be described later, the box 10 exposes the opening 11 of the box 10 to the concrete wall surface 50 by pressing the concrete wall 70 against the formwork 70 that forms a partition when the concrete wall surface 50 is produced. . Therefore, the support bar 30 needs to be made of a wire rod that can be bent by hand and can be freely set in a direction, and has a tensile strength that can press the box 10 against the mold 70 in a bent state. On the other hand, as long as these conditions are satisfied, various cross sections such as a circular cross section, a square cross section, or a flat cross section can be used. Further, the thickness is not particularly limited. From the standpoint of ease of installation to the rebar 80 that forms the support and the flexibility of the bending direction, a circular cross section is preferable. From the viewpoint of bending strength and tensile strength, the use of mild steel wire around No. 8 is used. preferable. In the first embodiment, the support rod 30 is made of an annealed iron wire having a hole diameter of φ4 that can be bent freely by hand and has sufficient tensile strength.
[0019]
The mounting member 20 serves as an intermediary for holding the support bar 30 and affixing the support bar 30 to the box 10. The attachment member 20 of the first embodiment has an L-shaped cross section, and two adhesive surfaces 22 are formed. The bonding surface 22 is bonded to the back surface and the side surface of the box 10. Further, as shown in FIG. 3, the adhesive surface 22 is notched so as to allow the portion to escape so as not to block the knock when attached to the box 10. By adhering the two surfaces in this way, the box 10 can be supported from the two directions of the back surface and the side surface.
[0020]
Further, the attachment member 20 is provided with a holding portion 21 so that the above-described support rod 30 can be attached. The holding portion 21 is provided with an insertion hole 23 in the longitudinal direction, and the support rod 30 can be inserted into the insertion hole 23 and fixed. At this time, the support rod 30 may be fixed to the insertion hole 23 or simply inserted.
[0021]
Furthermore, an adhesive layer 40 is provided on the adhesive surface 22. For example, a double-sided tape or hot melt is used for the adhesive layer 40, but various types can be appropriately selected depending on the material of the box 10 and the mounting member 20. In the first embodiment, the adhesive layer 40 is formed by hot melt having a thickness of about 1 mm that can be bonded by being melted by heating and then cured. Hot melt, can be bonded with only warm the adhesive layer 40 on the spot, also, since the early there is dry, it is very convenient.
[0022]
Next, a method for embedding the box 10 to which the construction tool 100 is attached in the concrete wall surface 50 will be described. First, as shown in FIG. 4, a linear support rod 30 attached to the box 10 is folded by hand to form a support frame in the concrete wall 50, and is bound to a support frame rebar 80 with a wire or the like. And erection. At this time, the support rod 30 is bent and adjusted by hand so as to come to a position where the box 10 is pressed against the formwork 70. Thus, the box 10 is installed at a predetermined embedding position.
[0023]
Then, as shown in FIG. 5, the mold 70 is pressed and installed in the opening 11 of the box 10. At this time, the mounting member 20 is pressed in the arrow direction A by the tensile strength of the support rod 30, and the box 10 is kept in close contact with the formwork 70. Thus, with respect to the horizontal direction, the box 10 is pressed in the direction of arrow B from the mold 70, and the mounting member 20 is pressed in the direction of arrow A from the support bar 30, and the vertical direction is mounted on the top and bottom of the box 10. The constructed construction tool 100 is pressed in the directions of arrows C and D to keep the balance. Therefore, the adhesive layer 40 can be reliably fixed even without such an adhesive force.
[0024]
Next, as shown in FIG. 6, concrete is cast into the mold 70 to form a concrete wall surface 50. Thus, the box 10 is buried in the concrete wall surface 50 with the opening 11 exposed.
[0025]
The above burying method is an example of a method of burying the box 10 in the concrete wall surface 50, and the present invention also applies to a method of burying the box 10 in close contact with the form frame 70 in a state where the box 70 is first stood. Use of such a construction tool 100 is possible. In this case, the box 10 may be bonded to the mold 70, and the support bar 30 may be bent by hand so that the opening 11 of the box 10 is in close contact with the mold 70 and installed on the rebar 80.
[0026]
(Example 2)
Next, Example 2 will be described. FIG. 7 shows a construction tool 100 according to the second embodiment. In the construction tool 100 according to the second embodiment, three adhesive surfaces 22 in three directions are provided so that the box 10 can be supported from three directions. Other support rod 30, adhesive layer 40, and the like are the same as in the first embodiment. The three adhesive surfaces 22 are attached to the corners of the box 10 and support the box 10 from three directions. At this time, as shown in FIG. 7, as a method of attaching the construction tool 100 to the box 10, the support rods 30 may be inserted separately, and attached separately to the rebar 80. As shown in FIG. 8, the support rod 30 may be held and attached so as to sandwich the two construction tools 100. Since the box 10 attached in this way can support all directions, up, down, left and right, front and rear, it can be fixed very firmly.
[0027]
(Example 3)
FIG. 9 shows a construction tool 100 according to the third embodiment. In this case, the installation tool 100 is attached to the box 10 covered with the dew condensation prevention cover 60. The construction tool 100 is the same as that of the first embodiment. The attachment method is adhered from the outer surface of the dew condensation prevention cover 60 by the same method as in the first embodiment.
[0028]
【The invention's effect】
As described above, according to the installation tool of the first aspect of the present invention, the support bar can be attached to the installation tool simply by attaching without questioning the attachment structure of the box. Therefore, it is not necessary to prepare a plurality of types of installation tools, and any box can be handled using only the installation tools of the present invention. Moreover, since a box can be supported from two or more directions, it can fix more reliably.
And the attached box can adjust the bending condition of the linear support rod, and can easily install the box according to the interval of the formwork, and also against the formwork that closely contacts the opening of the box It can be installed in a state where the box is always pressed. Therefore, the positioning of the box and the pressing to the mold can be performed easily and reliably, and the work efficiency can be improved.
[0029]
Moreover, according to the construction tool of Claim 2, even if it is the box coat | covered with the dew condensation prevention cover, it can be attached only by affixing directly, without opening a hole in the dew condensation prevention cover. Furthermore, since it adhere | attaches by 2 or more surfaces, peeling and shift | offset | difference can be prevented by the support from two or more directions.
[0030]
According to the invention described in claim 3, the support bar can be more securely fixed to the box. On the other hand, according to the invention described in claim 4, only the support bar can be freely attached and detached. Therefore, depending on the installation state, any support rod having a thickness, length or tensile strength can be used.
[0031]
Further, according to the construction tool of the fifth aspect, by using a hot-melt type adhesive layer, the work can be easily performed only by heating on the spot.
[0032]
According to the construction tool of claim 6, since the construction tool is fixed without forming a hole in the cover, it is possible to provide a box that does not cause condensation without losing the heat insulation effect.
[0033]
[Brief description of the drawings]
FIG. 1 is a perspective view showing a construction tool and a box according to Embodiment 1. FIG.
FIG. 2 is a cross-sectional view illustrating a state of a notch portion of the box according to the first embodiment.
FIG. 3 is a perspective view showing a state in which the construction tool according to the first embodiment is attached to the box.
FIG. 4 is a perspective view showing a state in which the installation tool and the box according to the first embodiment are attached to the rebar.
FIG. 5 is a side view showing a state in which a formwork is provided after a box to which a construction tool according to Example 1 is attached is attached to a rebar.
FIG. 6 is a side view showing a state in which concrete is placed after the box to which the construction tool according to the first embodiment is attached is installed in the formwork. FIG. 7 is the construction tool and the box according to the second embodiment. FIG.
FIG. 8 is a perspective view showing another attachment state of the installation tool and the box according to the second embodiment.
FIG. 9 is a perspective view showing another attachment state of the installation tool and the box according to the third embodiment.
FIG. 10 is a perspective view showing a conventional installation tool and box.
FIG. 11 is a perspective view showing a state in which a conventional installation tool is attached to a box.
[Explanation of symbols]
10 Box 20 Mounting member 30 Support rod 40 Adhesive layer 50 Concrete wall surface 60 Condensation prevention cover 70 Formwork 100 Installation tool

Claims (10)

In the installation tool for supporting the box embedded in the concrete wall to the rebar,
A holding portion for holding a linear support bar that has a tensile strength capable of supporting the box and is foldable by hand, and an adhesive surface that is bonded to the outer surface of the box. An attachment member that is disposed on the side surface and the back surface of the side and the corner and is bonded to two or more surfaces, and an adhesive layer provided on the adhesive surface;
A construction tool for a concrete burying box characterized by comprising: In order to support the box embedded in the concrete wall to the rebar, in the construction tool consisting of two or more, each construction tool has a tensile strength that can support the box and can be bent by hand. It has a holding part for holding the bar and an adhesive surface that is bonded to the outer surface of the box, and is disposed on the side or corner, and is bonded to two or more surfaces on the side and the rear surface that constitute the side or the corner. A mounting member ;
An adhesive layer provided on the adhesive surface,
A construction tool for a concrete burying box, which is attached to a different part of the box. In the construction tool for supporting the box embedded in the concrete wall, having a condensation prevention cover covering the outer surface,
Has a holding strength to hold a linear support bar that can be bent by hand and has a tensile strength that can support the box, and an adhesive surface that adheres to the outer surface of the anti-condensation cover. A mounting member that is disposed and bonded to two or more sides or back surfaces that constitute the sides and the corners ;
An adhesive layer provided on the adhesive surface;
A construction tool for a concrete burying box characterized by comprising: In a construction tool comprising two or more in order to support a box embedded in a concrete wall surface, having a condensation prevention cover covering the outer surface,
Has a holding strength to hold a linear support bar that can be bent by hand and has a tensile strength that can support the box, and an adhesive surface that adheres to the outer surface of the anti-condensation cover. A mounting member that is disposed and bonded to two or more sides or back surfaces that constitute the sides and the corners ;
An adhesive layer provided on the adhesive surface,
A construction tool for a concrete burying box, which is attached to a different part of a dew condensation prevention cover.   The construction tool for a concrete burying box according to any one of claims 1 to 4, wherein the support bar is fixed to the holding portion.   The construction tool for a concrete burying box according to any one of claims 1 to 5, wherein the holding portion is formed of an insertion hole through which the support rod can be inserted. 7. The mounting member according to claim 1 , wherein two notches are provided on a side surface of the box and two on a back surface thereof at a portion corresponding to a hole formed in the box for drawing out wiring and piping. A construction tool for a concrete burying box according to any one of the above.   The construction tool for a concrete burying box according to any one of claims 1 to 7, wherein the adhesive layer is made of a material that can be bonded by being melted by heating and then being cured. A box with a dew condensation prevention cover covering the outer surface, embedded in the concrete wall;
A linear support bar that can be bent by hand and has a tensile strength capable of supporting the box;
It has a holding part for holding the support bar, and an adhesive surface to be bonded to the outer surface of the anti-condensation cover, and is disposed on the side or corner and bonded to two or more sides or the back surface constituting the side or the corner. An attachment member ,
A box provided with a construction tool, wherein the dew condensation prevention cover and an adhesive surface are bonded. The box with the installation tool according to claim 9, wherein the bonding surfaces of the attachment members are bonded to the opposite side surfaces of the box and bonded to the back surface, respectively.

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