JPH03178515A - Temporary fixture for distributing box - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a tool for temporarily attaching a wiring box.

[Conventional technology]

19 to 21 show a wiring box 1 which is temporarily attached to a concrete form material 10 made of plywood and then embedded in concrete 11. The box 1 includes a hexagonal cylindrical body 2 with upper and lower openings, and the cylindrical body 2 serves as a main body. The upper end of the cylindrical body 2 is covered with a lid 3, and a saucer-shaped bottom plate 4 is attached to the lower end. The bottom plate 4 includes an outward flange 4a at the upper end of the cylindrical portion, and an inward flange 4b at the lower end. The hole drilled in the inner periphery of the flange 4b at the lower end is an opening (-face opening) 7, and the opening lower has mounting pieces 4c, 4c protruding inwardly 18.
The cylindrical body 2 is arranged so as to face each other at 0 degrees.
Another mounting piece 2a2a is also provided on the outer periphery of the mounting plate 2a2a to protrude in a similar manner to face each other. These mounting pieces 4c, 2a
are located at the same position when viewed from above. The wiring box 1 is installed with its lower surface (-side) facing the concrete casting side of the concrete form material 10. The box 1 has holes 2b and 2 in the mounting pieces 2a and 2a.
By passing the nails 5, 5 through b and driving the same nails 5, 5 into the concrete formwork material 10 in alignment with the markings 10a on the concrete formwork material 10, the concrete formwork material 10 can be temporarily attached directly. was. After the temporary attachment, concrete 11 is placed in the space of the wiring box 11M of the concrete form material 10, as shown in Fig. 22, and after the concrete 11 hardens, the concrete form material 10 is removed. After that, the downwardly protruding portions 5a, 5a of the nails 5, 5 were cut.

[Problem to be solved by the invention]

In this case, nailing is performed using the mounting piece 2a protruding from the outer periphery of the wiring box 1.
As shown in the figure, if the mounting piece 2a is driven in too much, the mounting piece 2a will bend, causing the wiring box l to become misaligned.

Since the nails 5, 5 pass through the concrete 11, when the concrete form material 10 is removed, the force from the form material 10 is transmitted to the nails 5, 5 and the attachment pieces 2a, 2a, causing the concrete 11 to be damaged. Some parts were missing as shown in lla in Figure 21. Said nail 5.5 has a protruding portion 5
A and 5a were treated by cutting, but the cut could not be made completely to the root, so the remaining part had to be treated with anti-corrosion paint, which was a time-consuming process.
As shown in Figure 3, attach the wiring box 1 to the mounting piece 4 on the inner circumference.
c, 4c may be used to temporarily attach it to the concrete form material 10. In this case, since the wiring box 1 has already been assembled, the inner circumferential space is narrow and it is difficult to nail the wiring box 1, and the wiring box 1 may float on the concrete formwork 10, resulting in problems in installation.

This invention was made in view of the above-mentioned circumstances, and its objectives are to make temporary attachment of wiring boxes easy and reliable, eliminate chipping of concrete, and improve efficiency and reliability of construction. The goal is to make the world more accessible.

[Means to solve the problem]

In order to solve the above problem, the wiring box temporary attachment tool according to the present invention uses a wiring box with a space inside and an opening on one side, and a wiring box with the same opening on the side where concrete of the concrete form material is poured. The wiring box is temporarily attached so as to face the concrete material, and is removed from the wiring box together with the concrete formwork material when the concrete formwork material is removed after concrete is placed. The outer periphery of the wiring box is designed to have an outer circumferential shape that can fit into the frontage of the - side of the wiring box, and the outer periphery of the wiring box can be rotated about an axis perpendicular to the surface of the concrete form material. The concrete formwork has an engaging receiving part with which the engaging part provided on the circumferential portion engages, and an opening from which the engaging part can be removed at a position adjacent to the engaging receiving part in the circumferential direction. With the wiring box attached to one side of the material, the opening on one side of the wiring box is fitted to the outer peripheral part so that the engaging part is aligned with the opening, and then the engaging part is opened by the rotating operation. By engaging with the attachment receiving portion, the wiring box can be temporarily attached.

[For production]

It is attached to the concrete formwork separately from the wiring box, and has an engagement receiving part that allows the wiring box to be temporarily attached by rotation.
Temporary attachment of wiring boxes can be done by simply rotating the wiring box without using nails. After the concrete has been poured and the formwork has been removed, making it possible for the main tack fittings to be easily removed from the wiring box will prevent the force from being applied to the nails, mounting pieces, etc. when removing the formwork, as in the conventional method. No force acts on the concrete part. If the fixing device such as a nail is eventually removed together with the actual tacking tool, even if the tool is temporarily attached with a fixing device such as a nail, the same fastening device will not be removed later. No longer protrudes from the concrete surface.

〔Example〕

Hereinafter, embodiments of the present invention will be explained in detail with reference to the accompanying drawings.

1 to 13 show an embodiment of the wiring box tacking tool according to the present invention. The wiring box 20 includes a hexagonal cylindrical body 21 with an open top and bottom, and the cylindrical body 21 serves as a main body. A lid 22 is attached to the upper end of the cylindrical body 21 by screws 23, 23, and a saucer-shaped bottom plate 24 is attached to the lower end. The bottom plate 24 includes an outward flange 24a at the upper end of the cylindrical portion, and an inward flange 24b at the lower end. On the inner periphery of the flange 24b at the lower end,
Engagement portions 24c, 2 protrude inwardly facing each other.
4c, and projecting pieces 21a, 21a are provided at opposing positions on the outer periphery of the cylindrical body 21.

The engaging portion 24C and the projecting piece 21a are arranged at the same angular position in the circumferential direction. The protrusion 21a may be omitted.

The lower surface of the lower flange 24b of this wiring box 20 is
The hole made in the center of the same plane is a circular opening (-
(frontage) 25.

Note that the engaging portion 24c is provided with a screw hole 24d, which is used for attachment after the wiring box 20 is embedded. therefore,
The engaging portion 24c also serves as a mounting piece. As seen in detail in FIGS. 3 to 5, the temporary attachment tool 30 has a circular outer circumferential shape with a slightly smaller diameter than the opening 25, and has the engaging portion on the outer circumference. 30.3
Two through openings (openings) 31 and 31 having similar shapes and slightly larger sizes are provided in the engaging portion 24c so that the 0 can be inserted into the engaging portion 24c. These through-hole portions 31.31 are arranged at positions 180 degrees apart from each other, and the engaging portions 24c, 24.
c can pass through the temporary attachment in a direction perpendicular to the surface of the tool 30. A circumferential groove 32.32 is provided on the bottom surface of the tacking tool 30 so as to extend in the circumferential direction, and the through hole portion 31.31 is located at one end of the circumferential groove 32.32. Each circumferential groove 3
A part of 2 is slightly deeper, and this part is the engaging part 2.
The groove 33 has almost the same shape as the groove 4c, and the engaging portion 24C is inserted into the stepped groove 33, making it difficult to remove it. and,
The upper part of the circumferential groove 32 and the stepped groove 33 is the engagement receiving part 3
It is now 4. The tacking tool 30 has a plurality of (4 pieces)
holes 35 are provided at regular intervals in the circumferential direction, and these holes 35 are provided on the top surface.
Centering lines 36 and 36 extending in the radial direction are attached so as to pass through the opposing ones with the center in between. One of these centering lines 36.36 is connected to the step groove 33.
．． The center of the tool 33 and the tack line coincide with the line connecting the center of the tool 30 on the upper surface, and the other centering line 36 is perpendicular to the centering line 36. Note that protrusions 21b protrude from the cylindrical inner periphery of the wiring box 20, and a groove 24 whose one end becomes an insertion hole 24e is provided in the bottom plate 24.
f are provided, and these screws 26 allow the cylindrical body 21
Although the wiring box 20 and the bottom plate 24 are detachably connected to each other, the wiring box 20 may be an integral piece.

As shown in FIG. 1, the tacking tool 30 has the centering line 36 at the markings 50a, 50a drawn so as to intersect with each other.
．． 36 are arranged so as to meet each other, and at this time, the circumferences A32 and 32 are made to face the upper surface of the concrete form material 50.

After that, concrete formwork material 5 is inserted through hole 35.35.
Drive nail 37.37 into 0.

The hole 35 is formed by repeatedly using the tool 30 for temporary attachment.
may be used repeatedly in the same way, nail 3
In order to obtain a strong fixing force by 7, it is necessary to use many holes 35..., and it is necessary to drive the nail under conditions where the nail hole 35 is damaged or the nail 35 cannot be driven. For this reason, as in the same embodiment, more than necessary are provided. By nailing, the tacking tool 30 is installed parallel to the concrete form material 50 so that its center coincides with the intersection of the markings 5Qa and 50a.

As shown in FIGS. 6 and 10, this wiring box 20 is designed so that each engaging portion 24c is fitted into the through-hole portion 31, and the lower end opening 25 is fitted onto the outer periphery of the temporary attachment tool 30. be made into Next, by rotating the wiring box 20 in the direction of arrow X (clockwise rotation direction when viewed from above), as shown in FIGS. The engaging portion 24c, which had been located up until then, fits into the circumferential grooves 32, 32 and slides to fit into the stepped grooves 33,33. As a result, the engaging portions 24c, 24C of the wiring box 20,
The engaging portions 24c and 24C are now located between the engaging receiving portions 34.34 and the concrete formwork material 50, and the engaging portions 24c and 24C are housed in the grooves 33.33 to return the engaging portions 24c to the original direction. Make sure that it does not come out easily. When the engaging parts 24c, 24c are fitted into the step grooves 33, 33, the tacking tool 30 is positioned and the engaging parts 24c, 24c are aligned with the markings 50a. direction(
The position of the engaging portions 24c, 24c) can always be maintained constant. This makes it possible to temporarily attach the wiring box 20 by simply rotating the box without nailing it. Concrete is poured in this state. After pouring, the concrete form material 50 is removed and the wiring box 20 is embedded in the concrete 51 as shown in FIG. Nail 37
．． It remains with 37 attached. The temporary attachment tool 30 is the first
As shown in Figure 2, by rotating in the direction opposite to the arrow
As shown in FIG.
7 and is extracted downward through the opening 25.

This extraction is performed in conjunction with the removal of the concrete form material 50. As a result, only the wiring box 20 remains in the concrete 51. In this way, after the concrete 51 has been poured and the formwork material 50 has been removed, the tacking tool 30 can be removed by simply rotating and tilting it, so it is not necessary to attach the mold to nails, mounting pieces, etc. as in the past. Due to the force applied when removing the frame material, the force no longer acts on a part of the concrete. Even if the tool 30 is temporarily attached using a fastener such as a nail, the fastener will not protrude from the concrete surface later.

In addition, as shown in FIGS. 14 to 17, a confirmation hole 41 is provided in the center of the temporary attachment tool 40, and the opening 4
The markings may be made visible through 1. This hole 41 can also be used as an outlet when pulling out a temporary electric wire. A reinforcing ring 43 is integrally provided on one side of the tacking tool 40 so as to surround the opening of each hole 42. When performing the above-mentioned work, tacking also serves to prevent the front and back sides of the tool 40 from being mixed up. Although the tacking tool was round in shape, as shown in FIG. 18, the tacking tool 45 may be made of a deformed plate having a rectangular shape or the like. In this case, the lower end opening 47 of the wiring box 46 also has a shape similar to the temporary attachment tool 45.

〔Effect of the invention〕

Since the wiring box tacking tool according to the present invention is constructed as described above, the wiring box can be tacked easily and reliably, and there is no fear of chipping of the concrete, which improves the efficiency of construction. This will help ensure certainty.

[Brief explanation of drawings]

Figure 1 is an exploded perspective view showing the process of temporarily attaching a wiring box to a concrete formwork material, and Figure 2 shows the details of the temporary attachment tool. Fig. 3 is a side view of the tacking tool, Fig. 4 is a plan view of the tacking tool, Fig. 5 is a bottom view of the tacking tool, and Fig. 6 is a bottom view of the tacking tool. The figure is a partially cutaway perspective view showing how the wiring box is fitted using a fixed tacking tool, and Figure 7 is a partially cutaway perspective view of rotating the wiring box and tacking it to the tacking tool. Fig. 8 is a half-sectional view showing the state shown in Fig. 7 when viewed from the side, and Fig. 9 is a partially cutaway perspective view showing the state of the construction. Figure 10 corresponds to Figure 6, which is a partial cross-sectional view of the state before it is removed, and the wiring box is fitted using a tool for temporary attachment. Fig. 11 is a cross-sectional view showing the situation when the wiring box is rotated and tack-attached to the tool, and Fig. 11 corresponds to Figs. 7 and 8. 12
The figure is a cross-sectional view showing the situation before the tacking tool is rotated and removed from the wiring box, and Figure 13 is a cross-sectional view showing the situation when the tacking tool is removed. Figure, 1st
Figure 4 is a perspective view of another embodiment of the tacking tool, Figure 15.
The figure shows a side view of the tool for tacking, Figure 16 is a plan view of the tool for tacking, Figure 17 is a bottom view of the tool for tacking, and Figure 18 shows a modification of the tool for tacking. Fig. 19 is an exploded perspective view showing the conventional method of tacking the wiring box together with the box, Fig. 20 is a half-sectional view showing the state of tacking the wiring box, and Fig. 21 is a perspective view showing the method of tacking the wiring box. Figure 22 shows the state of the wiring box after the concrete formwork has been removed, and a cross-sectional view of the wiring box in half. A perspective view, Fig. 23 is a cross-sectional view of the wiring box with the wiring box temporarily attached, and Fig. 24 is a cross-sectional view of the wiring box after the concrete formwork has been removed. . 20.46...Wiring box 25.47...-face opening 24c...Engagement part 30,40.45...Temporary fitting 34...Engagement receiving part 50...Concrete mold Frame material 51... concrete

Claims (1)

[Claims] 1. A wiring box with an open space inside and one side open.
Temporarily attach the concrete formwork material to the side where the concrete will be poured so that the opening faces the same formwork material, and after the concrete is poured, when the concrete formwork material is removed, the same formwork material The wiring box temporary attachment tool is removed from the wiring box along with the wiring box, and has an outer circumferential shape that can fit into the opening on one side of the wiring box, and the wiring box is attached to the concrete formwork material at the outer circumferential portion. The box has an engagement receiving part that engages with the engagement part provided on the inner circumferential portion of the box by rotating around an axis perpendicular to the plane, and the engagement receiving part is provided at a position adjacent to the engagement receiving part in the circumferential direction. The wiring box has an opening from which the engaging part can be removed, and when the wiring box is attached to one side of the concrete form material, the opening on one side is connected to the outer periphery by aligning the engaging part with the opening. After the wiring box is fitted into the wiring box, the rotating operation causes the engaging part to engage with the engaging receiving part, so that the wiring box can be temporarily attached. Wiring box temporary attachment tool.