JPH02209556A - Wiring floor panel - Google Patents

Abstract

PURPOSE:To cope with OA by laying, on a base floor face, a flexible floor material having legs integrally provided on the lower surface of a highly strong thin plate to form a wiring space between the thin plate and the floor surface. CONSTITUTION:A reinforcing rib 7 is integrally provided on a highly strong thin plate 2, and pipe legs 1 are integrally provided on the lower surface of the thin plate 2 to form a square plate. A plurality of square plates are connected to each other through hinges 6 to form a collected square plate. The collected square plate is laid on a base floor face 16, and cables of OA equipments are laid in the space formed between the thin plate 2 and the floor face 16.

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to office automation equipment (hereinafter referred to as OA
equipment) etc.! The present invention relates to a floor panel for OA wiring that allows cords, cables, output terminals, etc. of OA equipment to be wired on the floor of a room in which 2 or 32 devices are placed, or the wiring can be easily changed.

[Conventional technology]

The process of introducing OA in offices is progressing rapidly.
C Computer・1 “Talking, Faxing, Pulling a card, etc.” Tilt to 〇 2:+ is in the process of reforming itself and is constantly distributing W.
It has been renovated and re-integrated. To do this, it is necessary to store the electrical wires that are connected and their output ends, etc.
1, 2 Part 1: L position, etc. is 'fl! Cheap 111 that can be changed to S! It has become a highly needed and important technology. Conventional technology also has λ・I
There are the following five types of tJE IM structures for wiring according to the requirements.

One of them is an auridox pedestal supported floor type in which the floor panel is placed on a four-point supported pedestal with 19 sections in height.

The second one is the F-legged floor type, which is made by attaching adhesive T4 to the main part of the continuous π-shaped cross-section T4 of cut-out plastic and pasting several pieces together on the back and sides of the carpet tiles.

The third is a modification of the second, but it is a square vibrator with legs that are integrated with a rectangular resin plate with 111-plus ribs of the S number, and have the legs between the legs and the J' angle at the four corners about the same as the president of an adult. l protruding in the shape of
Arrange the resin blocks with ij in an orderly manner in 39 degrees horizontally and vertically °C
Flock 13 attached to the back and side of the carpet tile
floor type.

The fourth is a formwork 470 in the shape of a continuous square cut with 1 cut.
- By molding li! Made from H vinyl sheet.

I filled it with 11 barrels of light-weight mortar and connected them with a sheet! 1lII4 is made, and after hardening, the gold is removed, and the continuous groove part that is not filled with mortar is filled with iron, and carpet tiles are placed on it to raise f1.

The fifth type is a slatted floor type that is made of Almida Icast and has 9 legs at the four corners, the center, and the center of the side. Rubber feet are included for height flexibility.

The first pedestal support (I-f) is difficult to adjust the height of the pedestal, and requires a specialist in flooring to begin the carpet work, but the part at the end of the room is very difficult to adjust. ! etc., it takes a considerable amount of time and 117 minutes. The panels that support the 11ξ span of the pond, approximately 500 am, are often made of high-strength GRC or die-cast aluminum, but the manufacturing precision is strict, they are thick to prevent warping, and their own weight is 25 to 30 kg/m. 'It's quite boring and the cost is also the highest.

The next lower U and 11 floor types are easy-to-install types in which the carpet tiles are integrated with the floor structure, but they are made by extrusion molding of hard vinyl and are not separated in the extrusion direction. It may be a bending movement to adapt to the unevenness, but it is biased in one direction. Also, if the point of contact with the floor is made of hard vinyl, it will rattle or make a cracking sound when you walk on it.
A thin sheet of foamed polyethylene must be laid over the entire floor as a base. However, since the floor panel rests on the foam sheet, there is a drawback that the panel may shift during use.

In addition, since there is no rib on the π7 cross section side, the height can be made larger, or on the side in the orthogonal direction, the notch can only be shallow and short due to strength reasons, and the effective height is about half of the total height. In addition, the notches waste material, and since they are processed manually, the cost is high, and the number of notches cannot be obtained in equal numbers.In the case of wiring, the notches are arranged alternately, so in the end, the part with the least amount is The n effect is only for the notch. In addition, in order to make types with different heights, it is necessary to change the extrusion thickness of the 11 Solasnack.

The next block, ■Floor Turf, is a geta-leg floor type with no directionality, but it has the same drawbacks as the geta-leg type. Due to the inferior strength of the material (fat), the height of the ribs becomes larger and the effective height for wiring is compared to the total height. Of course, when manufacturing types with different heights, the molding metal must also be changed.

In both types of conventional technology, in which the horizontal and vertical support parts are made of the same material, the use of T4 material is inappropriate, so the thickness of the horizontal part other than 7 is about 411 mm, and the weight is 15 g.
/ ml, and since it is all made of resin, the painting foil is also expensive. Naturally, the difference between the total height and effective height for both types is transportation,
[Obviously it would be a waste of time.]

The split body type has a structure in which approximately 5 cm square psycho-mouth shaped morsir connected by one muhi sheet of the formwork is placed on the floor, so it is easy to follow the unevenness of the C1 floor and has a solid walking feel. but,
Its own weight is about 30Kg/m', which makes it worth the effort. Moreover, since the carpet tile does not blend well with the surface of the mortar covered with the PVC sheet, the carpet tile that has just been laid rises to some extent when walking, the sound of hitting the mortar flock is heard, and the carpet tile laid on top is also likely to shift. The floor of the pond is mostly made of mortar, so there is only a small space for wiring. In addition, since it is manufactured by filling mortar, it takes time to harden and the workability is poor. 2 construction,
Transportation and inventory costs are quite high. On top of that,
At the site, once the crack 1r has been created, the construction cost will be high if the L-heavage tile is used.

Ait&'s aluminum flooring type has a 1411 straight die-cast structure with 9 legs, so if the floor is uneven or large, the 111 cannot be adjusted just by attaching the legs and it will become unstable. However, there is an additional cost to smooth the base. The pond's floorboards are slatted, so they don't blend well with the carpet tiles, making a slapping sound when you walk on them.

However, "ltl!" is light at about 10 kg/m' and has electromagnetic shielding properties that separate the room and the wiring space, but it is not easy to install as with the side floor type,
It is a pre-installation type where only the floor is made first. Since expensive aluminum is used, the cost of the material is very high even if it is made into a slatted shape, and construction costs are high because it is difficult to drill and cut holes on site.

Before these five wiring floor structures, ancient floors only had to be heavy but stable. However, the information age demands flexibility from floors, and we must create floors that meet the contradictory conditions of lightness and stability that can be easily lifted and moved.

[Problems to be Solved by the Invention] As mentioned above, none of the conventional OA riverbed structures have reached a satisfactory solution. be. The problems that must be solved are as follows: 4. 11. It must be possible to make and install a machine that is efficient and cheap.

The biggest bottleneck in 11th wiring floor is that the IIIi rating is high. In order to overcome this, we need to use only materials with low cost, in a form that is suitable for HT production, and use the smallest amount of materials, and in order to drastically reduce transportation costs and construction costs, we need to use simple materials that are easy to construct. Ideally, it would be a one-bed type that is easy to process on-site.

Mouth: be as light as possible.

Fixed Am cannot be increased in an existing building, so it must be lightweight, and even in a $+i building, from now on the land will be 1illi
Due to the high construction costs, buildings are becoming increasingly high-rise, but the floor space is increased by the increase in the number of floors, so it is naturally necessary to reduce the weight of the structure in order to reduce the negative I. That pond, It! l
In the event of an earthquake, lightweight flooring materials have less acceleration and are less likely to move, both horizontally and vertically, causing less damage.

C. Second, the @ height is low and the wiring capacitance is large.

Naturally, the lower the floor structure, the lower the floor height, the less unnecessary finishing of the frame, and the total weight of the building. The effective height is high and the distribution is
Ideally, it should have a large capacity and a low total height. Even in the existing Ike building, the ceiling height of the low-floor type is less likely to decrease, and the difference in level from the conventional floor is low, so the slope is small and clean, and there is no need for baseboard construction.

28 steps (1) Feel good and don't make any noise.

E. Workability is good and construction 1... can be shortened.

It is best to use something that can be used to place carpet tiles, and that is simple enough that even an amateur can maintain it.

fart. Ability to easily supply products with different floor heights.

It is a system that allows the designer to freely create floors that are as exciting as they want.

Safety against electrical fires.

Considering the possibility of a fire caused by a short circuit or a fire caused by a worker's mishandling of a cigarette, it is desirable that the upper part of the wiring space be nonflammable.

blood. 'T-Nira is protective against waves.

Magnetic A files etc. are IIE! :/Ji LEasy to Prevent Accidents 2 Rooms and Wiring Spaces 77 In order to prevent interference from electromagnetic waves, it is desirable that the floor panels have magnetic seals. Additionally, the floor wiring section is protected from electromagnetic waves by the reinforcing bars of the concrete powder and the flanges of the floor panels, and is also protected from the influence of electromagnetic waves from outside the building.

There are eight issues to be addressed.

If the nu of these wiring floor panels is solved, the wiring floor panels will become widely popular.

The present invention aims to provide a wiring floor panel that can solve the above problems.

[Means for solving problems]

The relationship between the distance Ω of the dotted line representing the width of the shoe shown in Figure 1 and the length As shown in Figure 5, regardless of the shape of the legs, the lengths of the outer ends of the diagonally distant legs are the same as that of an adult wearing shoes. It is important that it is smaller than the width of the foot.Conventional.

When it comes to floor structures for wiring, the resistance to floor loads and the feeling of walking have been considered from the same perspective.The present invention clearly considers the resistance to floor loads and the feeling of walking.

In other words, the floor panel can be easily removed and the internal mold can be removed.
For il 1k M, if you install a reinforcing support under the handle, the floor panel will not be affected by the shadow W from 11'lJ.

The problem is the usability of pedestrians who can't decide where to walk on T1i14. IfJ is mainly used in offices etc.
I <For an adult, approximately 6r) II adult foot width; If you support it at the lower fulcrum, your feet will always be supported directly from the floor,
It will be closer to the feeling of walking on the original floor, L. In that case, the load on the floor slab will be reduced, and the deflection will be minimized, allowing it to be made thinner and lighter. In addition, the ground contact area of the caster legs of a chair is smaller than that of a human foot, but whereas humans walk by walking with one foot on the other hand, tRP & two-seat lifts are divided into four. In addition to this, recently, 5-legged roller types have become popular to prevent rolling fins, so they flex less than walking fins.

This invention aims to solve the problems by considering the above-mentioned considerations, and as a technical means thereof, a wiring floor panel is constructed as follows. Namely.

The floor panel according to the present invention has a planar shape or small 11 mm legs with two-dimensional curved or two-dimensional straight cross-section legs at least 1 ja2 in the four corners so that the distance between them is equal to or less than the width of an adult's foot. (Square)": Either the V-plates are separated with their four opposing sides aligned, or they are partially connected so that they can be bent, or their sides are all connected in a groove-like manner with thin T4, or a combination thereof. The whole is made into a large square shape that is the sum of the small squares mentioned above, and is pasted on the back side of a 5-shaped flexible flooring material that is the same size or slightly larger. The gap between the base floor surface and the l'Ilt!i formed by arranging a large number of wires is used as a wiring space 12 to form a horizontal extension that raises the floor by 11.

[For production]

The present invention narrows down the components to three, matches the purpose and material properties, and uses the optimal combination to overcome the disadvantages of the materials.
We have realized a large-capacity floor panel for wiring that is lightweight, has a low total height, and is easy to install.

Its components are the following three.

A: Floor material (flexible fr beard material) B: t* board (horizontal member attached to high altitude cable t4) C:
11 (Vertical member with high strength cross section) Floor surface t4 A Lt
Carpet tiles and plastic tiles are made that can be replaced.In Japan, there are 50
0 am square is common, but in Europe and America, 18 inch square is common, and both are flexible, contain glass fiber, and have good dimensional stability. However, it is unstable in the 19-degree direction and tends to bend or turn over easily.

On the other hand, for the horizontal member i'+V IJi B, a high-strength material such as a metal plate or resin with a high bending stiffness 11 is selected, but by supporting it with a short span of less than the width of a human foot, the plate IJ can be made even thinner. In particular, the thin plate B is divided and applied to the floor material A, and the flexibility of the floor material A is used to adapt to the unevenness of the floor. It is supposed to provide stability to maintain the horizontality of the surface material A in the 1g direction.

Already-Jj! J′! Leg C with a high-strength cross section that is a straight part t1
is a paper tube, or O-shaped 5-necked 1] ball, or 1 with an x-shaped cross section.
Since it is made of M fat, it is resistant to buckling, has better load-bearing capacity than 1-1 parts of the material, and can be used to make a large number of legs at a low cost. Elle is 11 years old and her legs are f*
IN B, while bending the floor surface HA little by little as if it were a single uneven surface, it maintains a practical level and supports C6k city.

In other words, for a person walking on it, a large number of ICs with supporting points set small according to the human foot width J are stacked on a thin plate B, and the soles of the feet are directly supported by the many supporting points. , you can get a very stable walking feeling.

From a different perspective, this means that the footrests for pedestrians are incorporated into the floor structure system. Of course, the exquisite combination of these floor surfaces T4, thin plates, legs, and human feet contributes to material savings and weight reduction, which reduces the cost of this wiring floor structure. Don't wait for arguments.

〔Example〕

Below, a preferred embodiment of the present invention will be described in detail with reference to drawing C.

FIG. 1 is an explanatory back view of the floor panel according to the present invention, where the small square surrounded by a solid line is the cleaning vJ1, the next larger square surrounded by the dotted line is the high-strength thin plate 2,
The large square surrounded by the 9I side is called Kaai Square; 3. Collective square 3 is literally a high-strength Fig Its
2, and the square located further outside 111 is the flexible floor material 4. The two high-strength thin elms indicated by broken lines can be completely separated by an interval of several millimeters as shown in the cross sections shown in Figures 2, 3, and 4, or
Even if they are connected in such a way that they can be bent at hinges or grooved parts, it is not possible.

Figures 6 and 71'l: The actual examples shown are injection molded of flame retardant polyethylene resin. 101111 and 3
If we take the circumference of the square tube leg 2 of 0+wm, the distance between the square tube legs 2 facing each other is 40 mm, resulting in a plate of 120 square meters. These 4 rows of 16 dyed squares are connected with hinges 6 at intervals of 5 mm, and 495 ms square dyed squares are attached to the carpet tiles 4 and pasted with an adhesive 25. The value of 40 mm, the length between the outer ends of the legs, multiplied by the width is approximately 57 I, which is within 60 I of the foot width.

The embodiment shown in FIGS. 8 and 9 is made of a thin iron plate [0] and a paper tube 15. 0.81! l thick! Press the II lead iron plate into 115mm square, and then
Push riffs around 11, center 12, between legs 13, and v1
G inside 14, and then press-worked the return prevention claw 2.
If you make three claws 21 with numbers 2 on them, three holes 20 will be created, or if these holes get big, the floor will be bad! j jf
(Make sure not to connect as it will take a while.)

Incidentally, if the holes and gaps in the thin sheet 2 are up to about 10 m1, they will be covered by the strength of the floor material 4 itself and will not affect the floor surface.

Next, in another press operation, it was made into a diameter of 40am and an I groove of 3mm.

When a paper tube 15 with a length of 20 m+m is inserted with the claws 21 inside, the return prevention claws 22 slightly protruding outside are wedged into the paper tube 15, and the paper tube 15 cannot be easily removed from the thin iron plate 10. At the same time as the pressing operation, a paper tube 15 with a diameter of 4.4 can be placed on a thin iron plate 10. Next, the [ti Ik paper tube 1] was made into a square shape of 492 mm by tying it together with an interval of 8 cm, and was pasted on the carpet tile 4 with adhesive 25.

! The pressure tube 15 is a thin S size (if you take it to the 65mm point of the opposite lO, the length to the center of the paper tube 15 is 25mm.
After subtracting the multiple from 115mm, the remaining amount is 65m.
m, and /7' times that is about 92 mm, and if you subtract the diameter of the paper tube 15 from that, you get 52 square feet, which is also smaller than the foot width of 601-, and the strength of the sole is also added, so you can never walk. The feet do not lower the thin iron plate 10 floorboard.

〔Effect of the invention〕

When it comes to a system for replacing flooring materials in any direction, a square floor panel system is rational, and in Japan, 500m5+ square carpet tiles are already being used as flooring for offices in terms of sound absorption, heat insulation, and design. As a result, the number of people in Japan is increasing significantly. This carpet tile does not expand or contract in size even with fRIK, and is flexible enough to adapt to most uneven floors.

On the other hand, the thickness of electrical wires commonly used in offices is
This is the largest 10mm round cable for signal Ethernet. Therefore, the minimum height required for the wiring is 20 mm, which is the minimum height that the 10 mm circles can intersect. Assuming that the width is enough to pass four of the above-mentioned cables, 40 cables are sufficient for practical use, as it can also pass through a pond.

As shown in the resin molding examples shown in Figs.
20+m square, 4 cylinders at a time, 5mm apart.
The 6 pieces are connected with a 495m angle and are exactly the same size as the carpet tiles. M polyethyton 14 thickness 2m
m is easy to mold and has an appropriate thickness to support a width of 20 to 30+ m.

The molding size of 495 + sm square is also a size that is easy to make with injection molding and is used for mass production, but ] 6 is the number of meters in 2, so it is
11 Easy to mold (very convenient from the point of view of imaginary yellowing).

In this embodiment, the center of the thin plate 2 has a distance between legs of 57 mm, which is less than the human foot width of 60 + s + m, a firm step 1i 55 of 11, and a diagonal bottom plate 8 that does not interfere with wiring.
Then, since the supporting point distance is further narrowed, I
The fj feeling is good.

The problem with the noise caused by the fulcrum is that the hard resin hoop H1's flexible blade-like leg tip 9 touches the floor, so it has cushioning properties and does not make any noise. The weight of this thick floor panel excluding carpet tiles is approximately 4
g/m”+31, compared to the conventional light type 4711.
It is amazingly light and light and cleanses at about J level. Molding T is negative and cheap li! If you add one layer of H-type flame-retardant polyethylene, it will be much cheaper and lighter.

The embodiments shown in Figs. 8 and 9 below are 1 m wide
．． By slitting an 8mm thick galvanized steel plate into 8 pieces, a coil with a width of 125cm can be obtained, and the excess from the press process can be reduced by 5cm.
If you look left and right one by one, you can get a 115mm square thin iron plate lO with a very good yield. The length of the center between the paper tubes is 52 vs.
Next step 11 sense is very good. In addition! It's IttT, so
The IIl length can be changed freely, and the 11 end has a soft contact and blends well with the taste. Monkey.

Unlike plastic, this thin iron plate is nonflammable and has a
While it has the advantage of being able to shield against JLli11 waves, it is also extremely light at 6 kg/m2. Of course, from Tita's point of view, it's paper and steel.

It goes without saying that it can be made very cheaply.

The total heights of 21 m+n and 22 mm of the two embodiments of the invention are 1ifl range of low, which was not possible with the prior art. The side floor type is made of a thin iron plate lid, but Mortar Pro Tsuku will break and become unusable if it is thinned to 20 mm.The slatted floor type, which is relatively thin, also has a gap between the legs that is larger than the width of the legs. Due to the weakness of the aluminum material and the use of slats, the thickness of the horizontal members including the lip is quite thick at 15+am.

As for wiring equipment, there is less need for it now that there are more and more office desks and equipment that are directly connected to each other, but major manufacturers are now selling outlets and join l-B OX that fit in 20+wm, so Nothing special is required. Although the 6-ht wiring has many legs, there are many gaps.The floor panel of the present invention has about 1-9 h.

By the way, another practical problem with wiring floor construction is that the carpet tiles are laid by interior craftsmen, while the floors are laid by carpenters. It's hard work, especially carpentry.

An advantage of the invention is its simplicity, which can be carried out by an upholsterer alone, or even by the owner of a stationery store. A single carpet tile weighs just under 2 kg, and interior craftsmen don't like working with very heavy objects, but the panels in this example are all lighter than the carpet tile.

Another problem is that cutting the edges of a room is a weak point and could only be done by a carpenter, but the material of the present invention is thin and can be easily cut with a portaple jigsaw, so it can be cut in a kerf or at an angle. Can be constructed.

In the conventional technology, even with geta legs and block leg type R11 beds, the distance between the legs was long and uneven, so a foam sheet was laid to prevent rattling, but the embodiment of the present invention has a flexible Due to the blade-like tip of the material and the long history of the paper tube, there is a natural stiffness and notation, and there is no noise, so there is no need for extra work such as laying a sheet. The pond is divided into small sections, so if the floor is uneven and there are some parts that are a little floating, as you use it, it will naturally sag under its own weight and correct itself so that it follows the floor. In addition,) i
-The legs sometimes get crushed due to the jar, but it can be easily repaired by replacing just the split part.

As described above, the present invention has many excellent effects not found in conventional wiring floor structures, and can be made at a revolutionary low cost in terms of illumination, so it can greatly contribute to the spread of OA in the future. Think of it as something.

The inside of the drawing 1st [;! 1 is a plan view of the floor panel seen from the back.

2IA, Figure 5 and Figure 4) 414 is an f+i diagram of high-strength thin elm. FIG. 5 is a plan view showing the state in which the 11 mole 11 semi-thin plate and the 11-strong strength surface are viewed from the back of the leg. FIG. 6 is a sketch of an embodiment made of resin. FIG. 7 is a cross-sectional view of the same embodiment. FIG. 8 is a sketch of an embodiment made of Aji1 steel and paper tube. FIG. 9 is a cross section 1jl of the same embodiment.

1...Tubular leg 3... set square 5... Company 7...lli strong ribs 9...Blade-shaped leg tip 11.12,13. and 14... 15...Paper tube 20... Hole 22...Return prevention claw 2...High strength thin plate ・I...Floor surface [I 6...Hinge 8...Bottom plate 1G...Thin iron plate extruded rib 16...Subfloor 21...nails 25...Glue No. figure Figure 5 Figure 6 Figure 7 φ

Claims (1)

[Claims] 1. A small square planar shape with two-dimensional curved or two-dimensional linear cross-section legs attached to at least four corners so that the distance between the legs is equal to or less than the width of an adult's foot. Either the thin plates are separated by aligning their opposing sides, or they are partially connected so that they can be bent, or all of the sides are connected in a groove shape with thin material, or by a combination of these, the whole is made into the shape of the small square. The assembled large square shape is pasted on the back side of a flexible floor material of the same size or a slightly larger square, and a large number of the above-mentioned legs are laid down on the base floor surface, resulting in a base floor surface and the thin board. A floor panel for wiring, characterized in that the gap between the spaces is used as a space for wiring to finish the floor. 2. The legs are high-strength hollow tubular legs or legs with an x-shaped cross section, the thin plate is a high-strength metal plate, resin plate, or ceramic plate, and the flexible floor material is flexible with fiber reinforcement. A carpet finish in which piles or tufts cut at the same height are planted on the surface of a sheet-like base, or a flooring finish in which thin sheets of natural wood are pasted on the surface of a tile-like shape cut into regular square shapes. The wiring floor panel according to claim 1, which has a structure of a sheet material. 3. Claim 1, wherein the tip of the leg is a series of small protrusions with an acute angle or a blade-like structure;
and the wiring floor panel described in item 2. 4. Claim 1, in which the legs and the thin plate are both integrally formed of metal, resin, or ceramics.
The wiring floor panel according to items 2 and 3. 5. The floor panel for wiring according to claim 4, wherein the thin plate has a three-dimensional structure having reinforcing ribs that extend to the legs. 6. The wiring floor panel according to claim 5, wherein the thin plate has a perforated three-dimensional structure formed of only reinforcing ribs. 7. Claims 4 and 5, in which the thin plate is reinforced in a planar manner by horizontally placing another type of thin plate with higher strength on the side of the flexible floor material in the central part of the thin plate. , and the wiring floor panel according to item 6. 8. By using a thin iron plate as the thin plate, using a cylindrical paper tube as the leg, and gluing the paper tube to at least the four corners of the thin iron plate,
A wiring floor panel according to claims 1 and 2 having an attached structure. 9. The thin plate is a thin iron plate, the legs are cylindrical paper tubes, and at least the four corners of the thin iron plate are pressed outward from the center of the paper tube attaching device and toward the subfloor, with multiple claws or in the opposite direction of the claws. Then, a plurality of claws with return prevention claws that protrude outward are made to protrude at an angle close to a right angle to match the inner diameter of the paper tube so that the loopholes do not connect with each other, and the paper tube is held in place with the claws inward. The floor panel for wiring according to claims 1, 2, and 8, having a structure in which the paper tube is attached to the thin iron plate by inserting it so that the paper tube is attached to the thin iron plate. 10. Claims 8 and 9, in which the thin iron plate has a structure in which reinforcing ribs are pressed so that the thin iron plate protrudes toward the subfloor in its central portion, peripheral portion, or paper tube attached portion, etc. Wiring floor panel as described.