JPH0622048Y2 - Erection tool attached to the buried box and buried box - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a erection tool and an embedding box which are attached to an embedding box used for fixing an embedding box to a reinforcing bar.

(Prior Art) Conventionally, a wire rod having a tensile strength that can be folded by hand to fix an embedded box to a reinforcing bar and that can press the embedded box body against a formwork in a bent state is provided on the back surface. Buried boxes are known.

As a erection tool attached to this type of burying box, the erection tool (90) shown in FIG. 9 disclosed by the present applicant in Japanese Patent Application No. 59-6833 (Japanese Patent Application Laid-Open No. 60-152747) has already been disclosed. It is mentioned and widely used.

This erection tool (90) is a wire rod (92) that can be bent by hand and has a tensile strength that can press the embedded box (91) against the formwork in a bent state, by attaching it to the back surface of the embedded box (91). It is fixed to the mounting plate (93) that can be used.

(Problems to be solved by the invention) However, since the wire rod (92) having a tensile strength capable of pressing the embedded box (91) against the mold is a fairly thick and strong wire rod (diameter about 4 mm), Rebar directly by hand
It is difficult to wind around (94). Therefore, the wire rod
When fixing (92) to the reinforcing bar (94), a thin and flexible binding wire (95) is separately prepared, and the binding wire (95) binds the wire rod (92) and the reinforcing bar (94) together. Must be
This involved work complexity in that the bind wire (95) had to be cut to a predetermined length with pliers or the like.

Therefore, an object of the present invention is to attach a wire rod (92) to a reinforcing bar and fix the embedded box to the reinforcing bar without separately preparing a binding wire having flexibility. To provide a box.

(Means for Solving the Problems) In order to achieve the above object, in the erection tool attached to the burying box according to claim 1, the erection box can be bent by hand and is buried in the formwork in a bent state. A first wire rod having a tensile strength capable of pressing
It is characterized in that a flexible second wire that can be wound around the reinforcing bar by hand is fixed to a mounting plate mounted on the back surface of the buried box.

Further, in the buried box according to claim 2, a first wire rod having a tensile strength capable of being folded by hand and capable of pressing the buried box body against the formwork in a bent state, and wrapped around the rebar by hand. And a second wire rod having flexibility that can be applied.

Furthermore, in the buried box according to claim 3, a first wire rod having a tensile strength capable of being folded by hand and capable of pressing the buried box body against the formwork in a bent state, and wrapped around the rebar by hand. It is characterized in that a erection tool having a flexible second wire rod and a mounting plate to which the first and second wire rods are fixed is provided on the back surface.

(Operation) In the installation tool to be attached to the buried box according to the above-described configuration of claim 1, first, at the work site or the like, the mounting plate is attached to the back surface of the buried box, and the first wire rod of the mounting plate is attached. The buried box is arranged at an appropriate position by bending it by hand, and then the second wire rod of the mounting plate is manually bent to prepare the first wire rod and the reinforcing bar without separately preparing a bind wire having flexibility. Secure the buried box to the rebar by wrapping it around.

Further, according to the configuration of claim 2, in this buried box, the buried wire box main body is arranged at an appropriate position by bending the first wire rod by hand, and there is no need to separately prepare a bind wire. By bending the flexible second wire by hand and winding it around the first wire and the reinforcing bar, the fixing to the reinforcing bar is quickly performed.

Further, according to the construction of claim 3, in this buried box, the buried wire box main body is arranged at an appropriate position by manually bending the first wire rod of the mounting plate having a tensile strength capable of pressing the buried water box body. Then
Therefore, without separately preparing a bind wire, the second wire of the flexible mounting plate is manually bent and wound around the first wire and the reinforcing bar, whereby the fixing to the reinforcing bar is quickly performed.

(Example) Example 1. Next, a first embodiment of the installation tool attached to the buried box embodying the present invention according to claim 1 will be described with reference to the drawings.

As shown in FIGS. 1, 2 and 3, this installation tool (1
(0) is a metal mounting plate (11) and a box that can be folded by hand and is embedded in the form (A) in a bent state.
The first wire rod (12) having a tensile strength capable of pressing (20)
And a flexible second wire (13) that can be wound around the reinforcing bar (30) by hand.

The mounting plate (11) is provided with a female screw hole (14) at the center and a pair of cutouts (15) at both ends on the diagonal. A stat bolt, which is inserted from the front surface of the mold (A) through the embedded box (20), is screwed into the female screw hole (14). The female screw hole may be omitted.

Further, the notch (15) is a box in which the mounting plate (11) is embedded.
Buried box (20) when mounted on the back of (20)
It constitutes an avoiding part that avoids the knockout (21) formed at a predetermined position on the back surface of the device so as not to block it. still,
Since the position where the knockout (21) is provided is defined by JIS standard (C8336: 1985), the notch (15) is provided according to the position.

Furthermore, the mounting plate (1) above and below the female screw hole (14)
In (1), insert it into the hole (22) of the buried box (20) and
Reinforcing ribs (17) that prevent the deformation of the mounting plate (11) are provided on the side with a protruding piece (16) for fixing (0).
Is provided.

The first wire rod (12) and the second wire rod (13) having substantially the same predetermined length are collectively fixed in parallel to the upper and lower ends of the mounting plate (11). Specifically, the first wire rod (12) has a diameter of 3.2 mm, and the second wire rod (13) has a diameter of 2.6 mm (see FIG. 4).

Next, the erection tool (1
The operation of 0) will be described according to the construction procedure.

First, in a normal reinforced concrete building, a formwork behind the wall is erected, and then the reinforcing bars (30), which are the skeletons of the concrete wall, are arranged vertically and horizontally. Then, at the work site, the buried box (2
To attach the erection tool (10) to the back of (0), the box (2
Insert the protrusion (16) of the mounting plate (11) into the hole (22) of
Bend inside (20). Then, the installation tool (10) and the burying box (20) are integrated.

Next, the first wire rod (12) and the second wire rod (13) are folded back by hand and brought close to the reinforcing bar (30) forming the skeleton of the concrete wall, and the box (20) is placed at a predetermined position on the concrete wall. Adjust the bending so that it is placed.

Then, the second wire (13) having flexibility is wound around the first wire (12) and the reinforcing bar (30) by hand, and the embedded box (2
Fix 0) to the rebar (30). In this way, unlike the conventional method, the second wire rod (13) is used for winding, without separately preparing a flexible bind wire, and the first wire rod (12) is reinforced and the rebar (30) is quickly and easily used. Fastened to the buried box
(20) can be fixed to the rebar (30). Further, since the second wire rod (13) is cut into a predetermined length in advance, it is not necessary to cut it with pliers or the like at the work site, and the work efficiency is very good.

Also, a erection tool (10) attached to this buried box (20).
In, since the mounting plate (11) is provided with a notch (15) for avoiding blocking the knockout (21) of the embedded box (20), the box (20) can be viewed from both upper, lower, left and right side surfaces. Not only that, using the knockout (21) on the back of the box (20), connect the connector (40) to the back of the box (20) and connect the conduit (50) to the connector (40). Wiring can also be made from the back side of the box (20).

Next, as shown in FIG. 1, the front mold (A) is erected on the front surface of the buried box (20), and the mold (A) is brought into contact with the opening of the box (20). At this time, mainly due to the tensile strength of the first wire (12), the second wire (1
Due to the tensile strength of 3), the opening of the box (20) is kept in close contact with the form (A). Therefore, concrete may be poured, but when it is necessary to more firmly adhere the box (20) and the formwork (A), the formwork (A)
Insert the stud bolt through the hole provided in the female screw hole (14)
It is screwed on and then concrete is poured.

In addition, in the installation tool attached to the burial box of this embodiment, a protrusion (16) by cut and raised which is inserted into the hole (22) of the burial box (20) is provided, and the burial box (20) of the burial box (20) is Attach the erection tool (10) to the back and install the erection tool (1
0) and the buried box (20) are integrated.

On the other hand, in the present invention as set forth in claim 3, the installation tool (10) is fixed to the back surface of the main body of the buried box (20) in advance by caulking, welding or the like, and the first wire (12) and the second wire ( The embedded box (20) is provided with a erection tool (10) having a mounting plate to which 13 and are fixed on the back surface.

Therefore, in the embedding box (20) which is provided with the installation tool (10) on the back side in advance, the embedding box (20) at the work site.
The second wire rod (13) is used for winding, saving the trouble of attaching the installation tool (10) to the back of the
Fasten (12) to the rebar (30), and replace the buried box (20) with the rebar (30).
Can be fixed to. Furthermore, the second wire (13) is
Since it is cut into a predetermined length in advance, it is not necessary to cut it with pliers or the like at the work site, and work efficiency is very good.

Further, the present invention is not limited to the above embodiment,
The first wire and the second wire are separately fixed at the upper and lower ends of the mounting plate (11) or at other positions, and the modifications are appropriately made without departing from the spirit of the present invention. May be.

Further, by appropriately changing the shape of the mounting plate (11), for example, as shown in FIG. 5, the knockouts (21) provided at four places on the back surface of the embedding box (20) serve as an avoidance portion so as not to block any of them. The mounting plate (11) having four round through holes may be used, or the avoiding portion may be omitted.

Example 2. Next, an embodiment of a buried box embodying the present invention according to claim 2 will be described with reference to the drawings.

As shown in FIG. 6, in this buried box (70),
The first wire rod (12) having a tensile strength capable of being folded by hand on the back surface of the main body and pressing the main body of the embedded box (70) into the formwork (A) in the bent state, and the rebar ( The second wire (13) having flexibility that can be wound around 30) is fixed by caulking or welding.

Therefore, in this burial box (70), it is not necessary to attach the erection tool (10) to the back surface of the burial box (70) at the work site, and the second wire (13) can be used for winding easily and easily. One wire rod (12) can be fastened to the reinforcing bar (30) and the buried box (70) can be fixed to the reinforcing bar (30). Further, since the second wire rod (13) is cut into a predetermined length in advance, it is not necessary to cut it with pliers or the like at the work site, and the work efficiency is very good.

This invention is not limited to the above embodiment,
As shown in the figure, the diameter of the first and second wire rods can be changed by using the same wire rod with a diameter of about 4 mm as the conventional wire rod as the first wire rod (12) and the bind wire usually used as the second wire rod (13). The flexibility may be changed as appropriate without departing from the spirit of the present invention, the cross-sectional shape of the wire rod may be changed to a rectangular shape or an elliptical shape, or the material of the wire rod may be changed to appropriately change the flexibility. It should be noted that, as shown in FIG. 8, if the same wire rod having the same diameter of about 2.6 mm is used as the first wire rod (12) and the second wire rod, either wire rod may be wound.

Further, both wire rods may be attached to the upper surface or the side surface of the box (70).

The length of the second wire (13) is set slightly longer than that of the first wire (12) as shown in FIG.
Winding work around 0) is easy.

(Effect of the Invention) As described in detail above, in the erection tool attached to the burying box according to claim 1, the burial box is arranged at an appropriate position by utilizing the strength of the first wire rod, and then, separately. Without preparing a bind wire having flexibility, by manually bending the second wire rod having flexibility and winding the second wire rod around the first wire rod and the reinforcing bar, fixing the embedded box to the reinforcing bar can be performed easily and easily. It has an excellent effect that

In the burial box according to claim 2, the burial box main body is arranged at an appropriate position by manually bending the first wire without attaching a erection tool to the rear surface of the burial box at the work site, and then separately. It is excellent that the second wire having flexibility can be bent by hand and wrapped around the first wire and the reinforcing bar without preparing a binding wire, so that the fixing to the reinforcing bar can be performed quickly, efficiently and easily. Produce an effect.

Further, in the buried box according to claim 3, by manually bending the first wire member of the mounting plate having a tensile strength capable of pressing the buried box body without separately installing a erection tool on the back surface at the work site. By arranging the buried box main body at an appropriate position, and by bending the second wire rod of the flexible mounting plate by hand and winding it around the first wire rod and the reinforcing bar without preparing a separate bind wire, It has an excellent effect that the fixing to the reinforcing bar can be performed quickly, efficiently and easily.

[Brief description of drawings]

FIG. 1 is an overall perspective view showing a state of use of a erection tool attached to an embedding box showing an embodiment embodying the present invention described in claim 1, and FIG. 2 is a erection tool also attached to the embedding box. A perspective view, FIG. 3 is a rear view of the erection tool and the box, FIG. 4 is a front view of the first and second wire rods, and FIG. 5 is a rear view of the erection tool and the box attached to another embedded box. FIG. 6 is a perspective view of an embedding box showing an embodiment embodying the present invention according to claim 2,
FIG. 7 and FIG. 8 are front views of the first and second wires, respectively, and FIG. 9 is an overall perspective view showing a use state of a erection tool attached to a conventional burying box. DESCRIPTION OF SYMBOLS 10 ... Erection tool, 11 ... Mounting plate, 12 ... First wire rod, 13 ... Second wire rod, 15 ... Notch portion as avoidance portion, 15a ... Through hole as avoidance portion, 20, 70 ... Embedding Box, 21 ... Knockout, 30 ... Rebar, 40 ... Connector, A ... Formwork.

Claims (3)

[Scope of utility model registration request] 1. A first wire having a tensile strength capable of being bent by hand and capable of pressing an embedded box in a mold in a bent state, and a second wire having flexibility capable of being wound around a reinforcing bar by hand. An erection tool that can be attached to a buried box, characterized in that the wire and the wire are fixed to a mounting plate that is attached to the back of the buried box. 2. A first wire having a tensile strength capable of being bent by hand and capable of pressing an embedded box body against a formwork in a bent state, and a first wire having flexibility capable of being wound around a reinforcing bar by hand. An embedded box characterized by having a second wire rod. 3. A first wire rod having a tensile strength capable of being bent by hand and capable of pressing an embedded box body against a formwork in a bent state, and a flexible wire rod capable of being wound around a reinforcing bar by hand. An embedding box comprising a erection tool having a second wire rod and a mounting plate to which the first and second wire rods are fixed, on the back surface.