JPH0448094Y2 - - Google Patents

Description

[Detailed description of the invention] (Industrial application field) This invention relates to a temporary fixing device for recessed wiring boxes, and is used to attach various wiring boxes for electrical wiring to concrete frames in concrete buildings and other concrete construction work. Temporary fixing for concave installation of wiring boxes, especially used to position the mounting surface of electrical outlets, switches, etc. to be installed in the wiring box buried in concrete inside the structure from the finished surface of the structure. It concerns a fixation device.

(Prior Art) Conventionally, various wiring boxes for electrical equipment such as outlet boxes, switch boxes, and outlet boxes that are buried in concrete structures are
The operating surfaces of switches and outlets installed in this wiring box are installed so that they match the finished surface of the building frame.

At this time, these wiring boxes are temporarily fixed at appropriate positions on the temporary concrete frame to be constructed, but this is usually done by penetrating the temporary concrete frame with fixing bolts connected to the wiring box. This is done by inserting the wiring box and securing it with nuts on the outside of the temporary concrete frame, and then bringing the opening of the wiring box into close contact with the inside surface of the temporary concrete frame.

(Problem that the invention aims to solve) For example, if the building is a warehouse where cargo and materials are stored, the operating surfaces of switches and outlets should match the finished surface of the building frame. If this happens, various inconveniences will occur.

This is because in this type of building, transport vehicles such as forklifts are often used to transport cargo, and there are many accidents where these transport vehicles come into contact with the operating surfaces of switches and outlets, causing damage. be. In addition, in order to increase storage space, cargo may be stored up to the full wall surface, and in such cases, switches and outlets that protrude even slightly from the wall may interfere with storage, and the cargo itself may not be able to accommodate these switches. There were also problems such as the risk of damage to items.

Conventionally, in order to eliminate this type of inconvenience, the plug sockets were recessed into the wall of the building (see Utility Model Application Publication No. 123582/1982), or the shape of the socket itself was changed, so that when the plug was inserted, the plug It has been proposed that the head of the plug is stored inside the outlet (Japanese Utility Model Publication No. 59-107523).

However, the former type of outlet has a structure in which the outlet is buried within the pillars or rim of the building, so although it is suitable for wooden buildings, etc., it has not been possible to embed the outlet recessed within the frame of a concrete building. In addition, since the latter type of outlet has a special shape, it is not possible to use general-purpose outlets, etc., which are in high demand.As a result, the manufacturing cost is high, and instead of this outlet, it is difficult to use a general-purpose outlet, etc. There was also a problem where I was unable to use the .

Furthermore, when recessing ordinary outlets and switches into concrete structures, a major problem is how to prevent the wiring boxes, which are temporarily fixed in the appropriate positions of the concrete temporary frames, from tilting. be. In other words, according to conventional temporary fixation,
The wiring box was fixed by forcibly crimping the wiring box to the inner surface of the temporary concrete frame. However, even after the wiring box is forcibly crimped, the wiring box may be tilted from its normal position because the wiring box is supported on the temporary concrete frame only by a fixing bolt. Moreover, this cannot be seen at all from the outside of the temporary concrete frame, and it is clear that if concrete is poured as is, it will become a major hindrance to later wiring work. Therefore, especially when trying to position the fixed position of the wiring box further inside than the inner surface of the temporary concrete frame, it is not possible to forcibly bond the wiring box directly to the inner surface of the temporary concrete frame. Preventing the wiring box from tilting in such a position becomes even more difficult.

Therefore, this idea was devised in view of the existing points mentioned above, and it makes it possible to accurately position the wiring box that is installed and fixed further inside the inner surface of the concrete temporary frame. Outlets and switches installed in wiring boxes are buried inside the finished surface of the completed concrete structure, for example, in buildings such as distribution warehouses where cargo and materials are stored. ,
The purpose is to avoid damage from transport vehicles such as forklifts and the cargo itself.

(Means for solving the problem) Therefore, this idea was created by inserting temporary fittings that are fixed to the wiring box buried in the concrete frame and the temporary concrete frame, and connecting them to the temporary fittings and attaching them to the temporary concrete frame. A fixing bolt with a nut that attaches the wiring box, a penetration part that is fixed to the opening of the wiring box and into which the fixing bolt penetrates, and a hole that is inserted between the temporary concrete frame and the opening of the wiring box to secure the wiring. A connecting plate that forms a predetermined space around the opening of the box, and a connecting cylinder that is inserted into the temporary concrete frame with fixing bolts inserted therein, and that fits into the insertion portion without idling. The first means for solving the problem is to include a straightening plate which rotatably abuts on the outer surface of the concrete temporary frame.

In order to solve the problem, we installed a jig mounting part on the surface of the temporary concrete frame to attach a specified peeling jig to take out the connecting plate buried in the concrete. This is the second method.

(Function) Therefore, this invention allows the connection plate fixed to the wiring box placed inside the temporary concrete frame to be fitted and connected to the correction plate placed rotatably outside the temporary concrete frame without idling. By making the rotation of the correction plate exactly the same as the inclination of the wiring box, the inclination of the wiring box can be corrected to the correct position by adjusting the rotational position of the correction plate that can be visually recognized outside the temporary concrete frame.

When the temporary concrete frame was removed,
A connecting plate interposed between the temporary concrete frame and the opening of the wiring box forms a predetermined space around the opening of the wiring box, and the head of the plug and the operating part of the switch are placed within this space. It is something that is stored.

At this time, the specified jig used to remove the interlocking plate buried in the concrete is attached to the jig fixing part provided on the board surface of the temporary concrete frame, and the interlocking plate is removed from within the concrete. It must be removed.

(Embodiments) Hereinafter, embodiments of this invention will be described with reference to the drawings.

The reference numeral 1 shown in the figure is a temporary fixing that is fixed to a wiring box B for various electrical equipment such as an outlet box, an outlet box, and a switch box, which is buried in a concrete temporary frame W constructed according to a predetermined design. It is a metal fitting. Also, code 2
is inserted into the temporary concrete frame W and the temporary fitting 1
This is a fixing bolt with nuts 3 that attaches the wiring box B to the inner surface of the concrete temporary frame W by being connected to the concrete temporary frame W. The temporary fitting 1 and the fixing bolt 2 are combined to fix the wiring box b to the concrete temporary frame W.
It is temporarily fixed to, and in the illustrated example,
Set the temporary fixing fittings 1 on the outer surface of the deep wall with the claw pieces that are inserted into the small through holes drilled in the deep wall of wiring box B and bent, and fix the fixing bolts 2 inserted through the temporary concrete frame W. By screwing into the temporary fitting 1, both 1 and 2 are connected, and by screwing nuts 3 into the outer surface of the temporary concrete frame W so as to press them, the wiring box B is attached to the inner surface of the temporary concrete frame W. . Of course, depending on the shape and structure of the temporary fastener 1, the method of fixing it to the wiring box B and the method of connecting it to the fixing bolt 2 may differ, and in any case, the wiring box B cannot be attached to the temporary concrete frame W. It is sufficient to temporarily fix it tightly.

There are a connecting plate 4 and a straightening plate 9 which are connected to each other without idling and are placed on both the inside and outside of the temporary concrete frame W with the fixing bolt 2 inserted therein. The straightening plate 9 is pressed against the outer surface of the temporary concrete frame W.

The connecting plate 4 is fixed to the opening of the wiring box B, and is provided with a penetration part 7 into which the fixing bolt 2 is inserted, and is interposed between the temporary concrete frame W and the opening of the wiring box B. A predetermined space is formed along the opening of the wiring box B. In the illustrated example, a penetration part 7 through which the fixing bolt 2 is inserted is formed approximately in the center, and has a structure that is fixed to the opening of the wiring box B. For example, a painting allowance cover C is attached to the opening of the wiring box B, and the connecting plate 4 is fixed to this painting allowance cover C. Also,
A mounting tongue piece B is formed in a shape that corresponds to the opening shape of the wiring box B and covers this opening, and is bent at the opening of the wiring box B.
By drilling a mounting hole 5 in the connecting plate 4 that corresponds to the female threaded hole 1, and inserting a mounting screw 6 through the hole and screwing it into the female threaded hole, the wiring box B can be installed so as to cover the opening of the wiring box B. .

In this way, the connecting plate 4 itself is connected directly or indirectly to the wiring box B depending on the manner in which the wiring box B is installed, and is shaped accordingly.

Furthermore, the connecting plate 4 shown in FIGS. 1 and 5
indicates one made of synthetic resin. That is,
In the connecting plate 4 shown in FIG.
is provided. Furthermore, the connecting plate 4 shown in FIG. 5 is provided with reinforcing ribs 8 for reinforcing the peripheral edge of the connecting plate 4.

The connecting plate 4 shown in FIG. 6 is made of metal. In this case, a thinner may be applied to the metal surface in advance in order to facilitate the peeling of the concrete from the metal surface.

The connecting plate 4 shown in FIGS. 7 and 8 is provided with a jig attachment part 4A on the board surface next to its temporary concrete frame W, and this jig attachment part 4A has a predetermined position for removing the connecting plate 4. A peeling jig J is attached. In the illustrated example, a tap-shaped jig attachment portion 4A is provided near the penetrating portion 7, and a peeling jig K is a long box that is screwed into this tap. Then, the long box screwed to the tap is screwed into the wiring box B, and the tip of the long box is forcibly pressed against the inner wall surface of the wiring box B, thereby lifting the connecting plate 4 from the concrete surface. Yes (see Figure 8). Further, the shape of the jig attachment portion 4A is arbitrarily set to suit the shape of the peeling jig J. For example, by using a crowbar-shaped peeling jig J whose tip is bent into a substantially L-shape, the connecting plate 4 is peeled off, and a hook-shaped jig attachment portion 4A that can be locked with the tip is attached. (not shown). Furthermore, the installation position and number of these jig attachment parts 4A are also set appropriately.

On the other hand, the straightening plate 9 has a connecting cylinder part 10 that is inserted into the concrete temporary frame W with the fixing bolt 2 inserted therein, and is fitted into the penetration part 7 without idling. It is rotatably brought into contact with the outer surface of the frame W. In the illustration, the insertion part 7 and the connecting cylinder part 10 are fitted together by fitting the square pipe-shaped latter 10 into the former part 7 which has a rectangular opening. As long as there is no idling and the rotational phase position of the correction plate 9 shows the inclination of the wiring box B, the cross-sectional shape when they are fitted may be triangular, elliptical, rhombic or other. .

The shape of the correction plate 9 itself is not limited to the rectangular shape as shown in the figure, but may be square, approximately cross-shaped, or other shapes, and as described above, the rotational phase position of the correction plate 9 itself indicates the inclination of the wiring box B. Any aspect is acceptable. In addition, a correction mark 11 is attached to this correction plate 9, and is formed by, for example, notching a V-shape at approximately the center of the upper, lower, left and right edges of the correction plate 9, and markings 11 are provided on the outer surface of the concrete temporary frame W. It is also possible to further improve the accuracy of the embedding position of the wiring box B by aligning the correction mark 11 with the dimension indication line L drawn in the drawing.

Furthermore, if necessary, the edge of the correction plate 9 can be reinforced by bending to increase its robustness, and the base of the connecting cylinder part 10 in the main body of the correction plate 9 can be bulged outward. It is also a good idea to strengthen this part by letting it slide (not shown).

Next, to explain how to use this, construct a temporary concrete frame W according to the predetermined design, attach the temporary fixing fittings 1 to the wiring box B to be temporarily fixed to this, and directly attach it to the opening of the temporary concrete frame W. Alternatively, the connecting plates 4 are connected indirectly via the fixed painting allowance cover C. In this way, the connecting cylinder part 10 with the fixing bolt 2 inserted into the fixing hole H opened in the concrete temporary frame W is inserted from the outside of the concrete temporary frame W, and the correction plate 9 body is attached to the outside surface of the concrete temporary frame W. At the same time, the fixing bolts 2 are screwed into the temporary fixing fittings 1 in the wiring box B placed inside the temporary concrete frame W, and the connecting cylinder parts 10 are connected to the penetration parts 7 of the connecting plates 4. Fit together.

Next, screw in the nut 3 of the fixing bolt 2,
By pressing the fixing bolt 2 against the surface of the straightening plate 9, the fixing bolt 2 is pulled outwards from the temporary concrete frame W, and furthermore, by strongly pulling the wiring box B toward the inside of the temporary concrete frame W, temporary fixation is performed.At this time, the straightening plate 9 The inclination of the wiring box B is adjusted by changing the rotational phase of the wiring box B, and the wiring box B is set in the correct position.

After that, concrete material is poured, and after curing and solidifying for an appropriate period of time, it is dismantled and demolded, and the prescribed wiring work is carried out in the wiring box B recessed inside the structure from the finished surface of the structure. be.

(Effect of the invention) Therefore, the connecting plate 4 fixed to the opening of the wiring box B and interposed between the temporary concrete frame W and the opening of the wiring box B prevents the opening of the wiring box B from being closed. A predetermined space is formed in the wiring box, and as a result, the mounting surface for an outlet, a switch, etc. to be attached to the wiring box is located inside the structure from the finished surface of the structure. From this,
For example, in a building such as a distribution warehouse where cargo and materials are stored, it can be prevented from being damaged by a transport vehicle such as a forklift or by the cargo itself.

Furthermore, the wiring box B can be used with any of the commonly used general-purpose wiring boxes B, regardless of whether it is a switch box or an outlet box. , without increasing construction costs.

Further, the wiring box B, which is arranged and fixed inside the temporary concrete frame W by fixing bolts 2 inserted through the temporary concrete frame W, is fixed to the connecting plate 4 fixed thereto, and It is connected to the straightening plate 9 which has a connecting cylinder part 10 that penetrates through the straightening plate 9. Therefore, it is connected to the connecting plate 4 without idling, and the rotational phase of the straightening plate 9 Therefore, the inclination of the wiring box B can be adjusted. At this time, since the rotational phase of the correction plate 9 corresponds to the inclination of the wiring box B, the correction plate 9
The inclination of the wiring box B can be corrected by working while visually checking the set position.

The connecting plate 4 is formed with a penetrating part 7 through which the fixing bolt 2 is inserted, and the straightening plate 9 is formed with a penetrating part 7 into which the fixing bolt 2 is inserted and which is inserted into the concrete temporary frame W. By having the connecting cylinder part 10 that fits into the penetrating part 7 without idling, the connecting plate 4 and the straightening plate 9 are firmly connected with the concrete temporary frame W interposed, and the straightening is performed. The rotation of the plate 9 rotates the linking plate 4 and, by extension, the wiring box B, making it possible to adjust the rotation of the wiring box B from outside the temporary concrete frame W.

Furthermore, the connecting plate 4 is provided with an appropriate number of jig attachment portions 4A on the board surface next to its own temporary concrete frame to connect a predetermined peeling jig J for removing the connecting plate 4 buried in the concrete. As a result, the work of peeling off the connecting plate 4 after concrete placement can be facilitated. As a result, it is possible to form a concave portion without losing its shape without destroying the trace of the connecting plate 4 after it has been peeled off.

Furthermore, the rotation phase of the correction plate 9 is centered around the axis of the fixing bolt 2, since the fixing bolt 2 is inserted through both the connecting cylinder portion 10 of this plate and the penetrating portion 7 of the connecting plate 4. As a matter of course, the fixing bolts 2 are inserted into the fixing holes H opened in the temporary concrete frame W to support and fix the wiring box B via the temporary fixing fittings 1. The connecting cylinder part 10 of the correction plate 9 that penetrates into the hole H is connected to the penetrating part 7 of the connecting plate 4.
By fitting into the wiring box B, the temporarily set position of the wiring box B will not be deviated even if the correction plate 9 is rotated.

As explained above, according to this invention, it is possible to accurately position the wiring box that is installed and fixed further inside the inner surface of the concrete temporary frame,
The electrical outlets and switches installed in this wiring box are buried inside the finished surface of the completed concrete structure, for example, in a building where cargo materials are stored, such as a distribution warehouse. Therefore, the wiring box B is not damaged by transport vehicles such as forklifts or the cargo itself.Moreover, the wiring box B can be used for various kinds of commonly used general-purpose wiring, regardless of whether it is a switch box, an outlet box, etc. Because you can use the box, it is like this type of conventional outlet with a special shape.
This has excellent effects such as eliminating the need to increase construction costs.

[Brief explanation of the drawing]

Figure 1 is an exploded perspective view showing the wiring during use.
Figure 2 is a sectional view of the wiring box in use, Figure 3 is a partially cutaway front view, Figure 4 is a sectional view of the wiring box when it is buried, and Figure 5 is a wiring box using another embodiment. Fig. 6 is an exploded perspective view showing the connection state to a wiring box using another embodiment, and Fig. 7 is an exploded perspective view showing the connection state to the wiring box using another embodiment. Exploded perspective view,
FIG. 8 is a sectional view showing a state in which the peeling jig is connected to the jig attachment portion and the connecting plate is removed from the concrete. B...Wiring box, B1...Mounting tongue, C
...Painting allowance cover, W...Concrete temporary frame, H...
...Fixing hole, J...Peeling jig, L...Dimension indication line, 1...Temporary fitting, 2...Fixing bolt, 3...
Nut, 4... Connecting plate, 4A... Jig mounting part, 5... Mounting hole, 6... Mounting screw, 7... Penetration part, 8... Reinforcement rib, 9... Correction plate, 10
. . . Connection cylinder portion, 11 . . . Mark for correction, 12 . . . Switch, 13 . . . Cable.

Claims (1)

[Scope of Claim for Utility Model Registration] 1. A temporary fitting that is fixed to a wiring box buried in a concrete frame, and a nut that penetrates the temporary concrete frame and is connected to the temporary fitting to attach the wiring box to the temporary concrete frame. It is fixed to the fixing bolt and the opening of the wiring box,
In addition to providing a penetration part through which the fixing bolt penetrates,
a connecting plate interposed between the concrete temporary frame and the opening of the wiring box to form a predetermined space across the opening of the wiring box; A temporary fixing for recessing a wiring box, characterized in that it has a connecting cylinder part that fits into the penetration part without idling, and a correction plate that rotatably abuts on the outer surface of the temporary concrete frame. Fixation device. 2. The wiring box according to claim 1, wherein the connecting plate has a jig attachment part on the board surface next to the temporary concrete frame to which a predetermined peeling jig for removing the connecting plate buried in the concrete is attached. Temporary fixing device for recessed installations.