JP2003003654A - Wiring groove type double floor with decorative board - Google Patents

Abstract

(57) [Summary] (Modifications required) [Problem] The compressive strength is a necessary condition, is stable as a floor, and can be adjusted to a base with some unevenness.
Providing a double floor where wiring can be easily installed and replaced. A floor plate, groove cover,
The corner lid is the main member. A surface decorative plate made of wood, bamboo, or the like is provided on the surface of the main member in advance. Floors of a predetermined height are laid at equal intervals in front, back, left and right sides in an octagon with four corners of a quadrilateral cut off. This interval becomes a wiring path. A rectangular cover plate easily covers the space between the side surfaces of two floor plates adjacent at a predetermined interval. At the places where the corners of the four floorboards are concentrated, they are easily covered with an octagonal corner cover.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a double floor with a floor-laying wiring groove. The double-floor was originally developed with the spread of computers and personal computers, and electric wires that flooded into offices and swirled were stored in the space under the floor,
One purpose has been to keep the floor tidy.

[0002]

2. Description of the Related Art Conventionally, a stationary tile carpet divided into squares of 50 cm on a side has been laid on the surface of a double floor.

[0003]

The floor tile type carpet used in the past has a synthetic resin loop-shaped carpet on a semi-rigid resin substrate of a square with a side of 50 cm. It was attached while being embedded in the substrate. Such a tile carpet can be installed on a double floor by applying a small amount of adhesive on the back surface of the board, and it has good workability. For example, when pulling out the cord under the double floor, etc. Moreover, it is convenient and widely used because it can be easily removed and can be returned to its original state.

One of the drawbacks of such a tile carpet is that it is easy to absorb dirt because it uses long loop-shaped fibers having long hairs. If cleaning is easy, there are few problems, but one is that it is cut into small pieces, so there is a problem that water flows out from the gap between each piece when cleaning is laid. There is a problem in that it is difficult to wash because the backside substrate becomes an obstacle when detaching and cleaning once. Since it is difficult to clean, it is often used in a pile of dust, and it easily becomes a hotbed for the generation of mites, which is a problem that cannot be ignored in terms of the living environment. In particular, it cannot be used in the computer room of elementary and junior high schools, so it is necessary to solve it urgently. The first object of the present invention is to solve such a problem.

In particular, in offices and classrooms where people come in and out of the shoes, laying a carpet on the surface tends to cause the above problems, so a wooden floor which is easy to wipe and clean is most suitable. There is a method of using plywood, but it is strong against friction and does not use harmful adhesives such as wood.
Bamboo is the best choice.

[0006]

The double floor A, which has been widely used in the past, is often based on a heavy-weight panel made of concrete or steel. As shown in Figure 1,
A concrete plate having a side of 50 cm or a base plate 1 made of a steel panel is formed with four corners on the lower surface to have a thick wall, long nuts 21 are embedded, and bolts 22 are cut at the tip to provide a height-adjustable support leg 2. In the case where it is attached and has a lot of unevenness, the support leg 2 is rotated to adjust the height and form a substantially flat floor surface.

However, since a large number of substrates 1 are continuous in the front, rear, left and right, it is extremely difficult to adjust the height of the support legs 2 one after another. In order not to make the step of the joint between the panels conspicuous, as shown in FIG. 2, the flexible tile carpet 3 is laid out in a half-phase with the substrate 1 in the front-rear direction to avoid the step being conspicuous. Has come. The laid-down type carpet with a flexible synthetic resin as a backing material is easy to construct and has a certain degree of flexibility, so it had the advantage of being able to follow the unevenness of the double floor. It is quite difficult to change the surface material to be laid on the hard surface to a hard one, and the development of the surface material inevitably involves solving the problem of height adjustment of the base substrate 1. The present invention solves the drawbacks of the conventional products as described above, and provides a double floor having a wooden flooring which is excellent in aesthetics, has a high-class feeling, does not absorb dust, and is easy to clean. To do.

[0008]

In order to solve such a problem, in the present invention, the pressure resistance is a necessary condition, and it is stable as a floor and can be adjusted to a base with some unevenness. In addition, under the basic premise that wiring can be installed and wiring can be easily replaced, (1) use a floor surface material such as wood or stone that is easy to clean without using the tile carpet that has been widely used. The first means is (2) the second means is to use a unique constituent member in order to absorb a certain amount of unevenness, and (3) the wooden surface material is used to facilitate cleaning. This is a third means, and at the same time, a novel and luxurious appearance is realized.

The present invention is intended to solve the above problems by the following means. Floor plates, groove lids, and corner lids formed using thin steel plates are the main members. A surface decorative plate made of wood or bamboo is attached to the surface of the main member in advance. It has an octagonal shape with four corners cut off, and lays floor boards of a predetermined height at equal intervals in the front, back, left, and right. The interval formed above becomes a wiring passage. Between the side surfaces of the two floorboards adjacent at a predetermined interval,
Cover with a rectangular lid plate for easy attachment and detachment. In places where the corners of the four floor boards are concentrated, an octagonal corner cover is used to cover them easily. A combination of three types of basic materials such as the above-mentioned corner cut floor plate, rectangular lid plate, and octagonal corner lid forms an laid-down type wiring floor which is aesthetically pleasing and whose height can be easily adjusted.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows a base 1 formed by using a 1.2 mm thick galvanized steel sheet. An octagonal substrate 10 in which four corners of a square plate having a side of 40 cm are cut out in an isosceles triangle shape so as to connect a corner cut point of 5 cm from the corner, and each corner has a corner cut side 11. To form. Each of the corner cutting edges 11 is provided with a substantially rectangular support leg 20 having a height of a little less than 4 cm and having the corner cutting edge as one side.

As shown in FIG. 2, each of the peripheries 12 excluding the corner cutting edge 11 is provided with a substantially rectangular extension having a height of a little less than 4 cm and having the perimeter 12 as one side. Is divided into four by a line orthogonal to the periphery to form four support legs 20. Each of the support legs 20 formed at the corners and the periphery is bent downward at a right angle to form a floorboard base 1 having a height of less than 4 cm and having a number of support legs 2 on the periphery. At four central locations on the floor plate base 1, a part of the substrate 10 is depressed into a conical shape, and cup-shaped support protrusions 21 having the same height as the surrounding support legs are provided.

As shown in FIG. 3, an octagonal surface plate 30 made of a zinc-plated steel plate having a thickness of 2 mm is superposed on the floor plate base 1 to form a corner cutting floor plate 3 having a height of 4 cm. Form. The plane size of the octagonal face plate 30 is made smaller than the plane size of the base 1 to form a mounting edge 31 having a width of 1 cm over the entire length of the four sides of the octagonal face plate 30. As shown in the figure, on the octagonal surface plate 30, a wooden decorative flat plate 4 of the same shape having a thickness of 15 mm is attached to a portion other than the mounting edge 31 to form an octagonal corner having a wooden surface. Complete the cut double-floor floorboard A.

FIG. 4 shows a groove lid 41, which is made of a rectangular zinc-plated steel plate and is reinforced by forming five linear concave-convex reinforcing strips 51 parallel to the groove plate 40 in the transverse direction. FIG. 5 shows a cross lid 42, which is made of an octagonal galvanized steel sheet, and is reinforced by providing straight concave-convex reinforcing strips 51 on four edges and an X-shaped concave-convex reinforcing strip 51 at the center. Is

As shown in FIG. 5, the floorboards 3 are regularly laid on the floor surface at a predetermined interval, and parallel wiring grooves 61 are formed between the side edges of the floorboards. Cross-shaped cross wiring grooves 62 are formed at the intersections of the parallel wiring grooves.
Along the parallel wiring grooves 61 and the intersecting wiring grooves 62, slightly lower strip-shaped mounting edges 31 are formed on both sides.

A groove lid 41 is installed on the parallel wiring groove 61, and a cross lid 42 is installed on the cross wiring groove 62 so that the upper surface of the wiring groove is at the same level as the octagonal surface plate 30 of the floor board 3. Align and flatten the entire surface of the double floor. This is a basic method of forming a double floor with wiring grooves running in a grid pattern under a detachable groove lid and a cross lid.

Since the wooden decorative flat plate 4 is stuck on the double floor, the problem of conventional carpet tile pasting has been solved, and the double-decorative double-decker with a wiring groove is highly decorative and rich in luxury. The floor. When changing the wiring, the work is done by approaching the wiring groove by attaching and detaching the groove lid and the cross lid with the one with the decorative flat plate.

[0017]

Example 1 An example is shown in which a wiring groove having a depth of 7 cm and a width of 10 cm forms a double floor having wiring grooves which are continuous vertically and horizontally at intervals of 50 cm. As shown in FIG. 6, two long corners on one long side of a rectangular steel plate with a thickness of 1 mm, a long side of 40 cm, and a short side of 17 cm are 5 cm from the corner. The corners are cut at the points to form a trapezoidal substrate 10 having a modified hexagonal planar shape.

A plurality of linear connecting line segments 29 are defined on the periphery of the substrate 10 and inside the substrate. The connecting line segments defined inside the substrate are set so as to be dispersed as evenly as possible and oriented in different directions as much as possible. The above connecting line segment 29
Each side is one side, and the length is 7
A substantially rectangular support leg piece 120 having a size of a centimeter is defined so that the support leg piece 120 is connected to the substrate 10 only at the connection line segment 29, and the portions other than the connection line segment are substantially U-shaped indentations. 21 is provided and separated from the octagonal face plate. In the drawings, the connecting line segment 29 is shown by a broken line, and the scratches are shown by parallel diagonal lines.

FIG. 7 shows a half-divided base 1A which is formed into a support leg 12 by refracting each of the support leg pieces 120 formed on the substrate 10 substantially at right angles to the same surface side of the substrate 10. Each of the supporting leg pieces 120 shown in FIG. 6 is bent downward at the position of the connecting line segment 29 so as to be substantially orthogonal to the substrate, and the supporting leg 12 is bent.
It is what A large number of supporting legs attached in multiple directions distribute and support the load applied to the floorboard.

The lower end of the supporting leg 12 is bent and the grounding piece 1 is short.
Form 5 and ground it at the surface instead of the line. This is to disperse the force and make it easier to stabilize. The planar shape of the support leg 12 is not limited to the rectangular shape, and the tip may be thin or the edge may be formed in a curved shape.

As shown in FIG. 8, the support leg 12 provided at the corner cut edge 11 of the floor plate is provided with a long tongue-shaped notch 16 which reaches the inside of the substrate 10 at the upper end. Such a tongue-shaped notch 16 connected to the upper side can be used as a wiring outlet, and is effective when the wiring cord under the floor is taken out onto the floor.

FIG. 9 shows a floorboard 3 formed by combining two half-divided bases 1A and one octagonal surface plate 2. Two modified hexagonal half-divided bases 1A illustrated in FIG. 7 are opposed to each other with their long sides facing each other with a parallel spacing of 6 cm between the two long sides, and a cushion sheet 17 is laid. , An octagonal octagonal surface plate 2 is superposed and joined.

The octagonal face plate 2 to be superposed has a thickness of 2
Using a millimeter galvanized steel sheet, the base formed by combining the two half-divided bases, formed one size smaller, in the state of overlapping, the entire periphery of the combined base, A mounting edge 14 having a width of 1.5 cm is formed.

As shown in FIG. 10, when the base and the octagonal shaped surface plate were joined together, the size of the surface was approximately the same as the surface size of the two half-divided bases that were united, and holes were punched at the same locations to be caulked. Clamp together the cushion sheet 17 and crimp together. The squeaking noise between the octagonal surface plate and the base is suppressed, and the cushion sheet 17 projects around the octagonal surface plate 2 and covers the upper surface of the mounting edge 14, so that the mounting edge is covered. It is extremely effective for stability and noise reduction when installed.

The size of the floorboard 1 thus synthesized is
It is an octagon with a basic shape of a square with a side of 40 cm and four corners cut into a length of 5 cm on a side. A tunnel-shaped wiring path 18 having a width of 6 cm is formed under the floor plate 1 and between the two half-divided bases 1A. Such a tunnel-shaped wiring path can be used for wiring, and is also effective as a space for housing wiring equipment.

FIG. 11 shows an example of a method of connecting the base 1 and the octagonal surface plate 2. A plurality of coupling holes 19 are provided in the substrate 10, a burring protrusion 21 protruding downward is provided at a position corresponding to the coupling hole 19 of the octagonal surface plate 2, and the burring protrusion is inserted into the coupling hole 19 to perform burring. By means such as'caulking 'by hitting the protrusions. It is convenient because it has good workability. At this time, it is desirable that the cushion sheet 17 sandwiched between the octagonal surface plate and the substrate also has a coupling hole and is fixed at the same time.

In order to form a double floor with wiring grooves, as shown in FIG. 5 above, a floor board is laid regularly on the floor with wiring grooves having a width of 10 cm, and is installed above the wiring grooves. Cover and level the entire surface. There are two types of erection lids, a groove lid 41 and a cross lid 42.

An example of a method of forming a groove lid having a flat upper surface, strength, and vibration damping effect will be described. FIG. 12 shows the lid 4
1, a bottom plate 43 having a thickness of 2 mm and a cover plate 44 having a thickness of 1 mm are formed in combination. Both ends of the bottom plate 43 are bent downward at a right angle of 1 cm to form a refraction edge 45.
To form. It is 13 cm wide and 30 cm long.

As shown in FIG. 13, a frame portion 46 having a width of 15 mm is formed around the rectangular bottom plate 43.
A joint 47 having a width of 10 mm and a width of 1 mm is formed on the inside thereof. The inside is partially pressed to form transverse grooved ribs 48. A cover plate 44 made of a steel plate having a thickness of 1 mm is laid on the joint portion 45 to form a flat upper surface, and the groove lid 41 is formed.
To complete.

FIG. 14 shows a cross lid 42, which is a bottom plate 43 having a thickness of 2 mm and a cover plate 4 having a thickness of 1 mm.
4 and 4 are formed in the same manner as the groove lid. The peripheral edge of the cross lid is bent downward at a right angle for 1 cm except the corner cut portion to form a bent edge 45.

The four corners of a square having a side of 20 cm are cut out into a right triangle having a side of 5 cm to form a substantially octagonal shape. 15mm wide frame 4
6 forming a joint 47 that is 1 millimeter lower inside
To form. By partially pressing the inside,
An X-shaped grooved rib 48 is formed. A cover plate 44 made of a steel plate having a thickness of 1 mm is superposed on the joint portion 47,
The entire upper surface is formed flat to complete the cross lid 42.

Since the groove lid and the cross lid described above are used by being installed over a wide span, it is necessary to suppress the bending within a certain degree when, for example, a large force is applied to the central portion. . Light weight and high strength are required, but what is important is that when the bottom plate and the cover plate are integrated, the place where the bottom plate and the cover plate overlap in a flat state, such as between the peripheral edge of the cover plate and the grooved rib, 'Caulking', as shown in Figure 11 above
It can be adhered by a method such as. In the case of'caulking ', no material such as an adhesive is required, and caulking of a number of points can be performed at the same time, so that the cost is low, which is desirable.

The groove lid 41 and the cross lid 42 have a structure in which two steel plates are bonded together. Therefore, the upper surface is flat and the rear surface is a rib structure to increase the second moment of area.
The bending when installed is minimized. At the same time, there is another advantage that the vibration damping effect is great, and even if it is made of a steel plate, no metallic sound is generated even if it is hit.

A method for constructing a double floor with wiring grooves using the floorboard 3, the groove lid 41, and the cross lid 42 thus formed is as follows.
This is similar to FIG. 5 described above. That is, the floor boards 3 are regularly laid and arranged on the floor surface at predetermined intervals. Parallel wiring grooves 51 are formed between the edges of the floor board, and cross wiring grooves 52 in a cross shape are formed at intersections of the parallel wiring grooves. Parallel wiring groove 5
1 and the mounting edge 1 on both sides along the cross wiring groove 52.
4 is formed.

A groove lid 41 is installed on the parallel wiring groove 51 and a cross lid 42 is installed on the cross wiring groove 52 by a method of installing a lid between the mounting edges, and the upper surface of the wiring groove is Octagon of base 1

─────────────────────────────────────────────────── ───

[Procedure amendment]

[Submission date] September 22, 2001 (2001.9.2)
2)

[Procedure 3]

[Document name to be amended] Statement

[Correction target item name] Full text

[Correction method] Change

[Correction content]

[Document name] Statement

[Title of Invention] Wiring groove type double floor with decorative plate

[Claims]

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a laid floor type double floor with a wiring groove and a member used for forming the floor.

[0002]

2. Description of the Related Art In a conventional double floor, since the cable and cord connecting the computer and the terminal are thick and hard, it is difficult to bend them with a small radius of curvature when wiring. . For this reason, a table-type double floor having a wide space under the floor is used, in which long supporting legs whose height can be adjusted are attached to the four corners of a highly rigid surface plate.

In such a double floor, it is necessary to securely erect the supporting legs. Since the floorboard needs to have sufficient load bearing capacity, it must be robust and generally costly. At the same time, free wiring is required, and cords running in various directions overlap each other.When changing wiring, it is necessary to lift the entire floor. Was tough.

Since the table type double floor is required to be installed horizontally on the surface when the computer is installed, it is necessary to adjust the height of the legs when the table is installed on the uneven floor. Since it is troublesome, it takes time and cost for construction. This involved a lot of troublesome work such as having to move the double-floor body when changing the wiring.

Especially, with the recent rapid spread of computers, the computers themselves have become smaller and lighter, which means that the clerk will have one each and the amount of wiring in the office will increase. It has increased dramatically and has become complicated. At the same time, cables and cables have become thinner and more flexible. At the same time, double floors are required for general offices, and the space under the floor may be a few centimeters, but on the other hand, construction is easy and wiring can be done anywhere in the office.
Moreover, there is a demand for a double floor in which wiring can be easily changed.

[0006]

As a floor finishing material, a so-called carpet tile in which a lower surface of a carpet is planted on a back surface of a synthetic resin so as to be easily attached and detached has been generalized. However, because carpet tiles are made of synthetic fibers and generate static electricity, it is easy to inhale dust, and it is difficult to clean dirt that has entered between densely packed synthetic fibers, which is one of the causes of sick house such as dust allergy. There is concern that it will become.

[0007] In recent years, computers have become so common that computers are placed on the desks of executives, while computer classrooms are also installed in elementary schools, which is different from general offices. There is an urgent need to diversify floor surface materials, such as those that are easy to do and those that are luxurious.

Although there are various conventional double floors, most products have a surface plate having a side of 40 to 50 cm, and when wiring is changed, a large surface plate is used. When changing the wiring, a large face plate had to be removed. It was difficult to change the wiring because the wiring could not be changed without removing the floor surface material and moving the double floor underneath.

[0009]

According to the present invention, the above problems are solved by the following means. A steel plate is used, and a floorboard having a substantially octagonal surface shape and a grid-like wiring path that is vertically and horizontally connected at predetermined intervals are adopted. The intersections of the wiring paths are cut off at the corners and widened to increase the wiring capacitance and, at the same time, facilitate the bending of the cord. The wiring path is easy to attach and detach, and a lightweight and sturdy lid that is easy to attach and detach is attached so that wiring can be changed easily. A plate of wood or the like is attached to the entire surface of each member to form a floor surface that is easy to clean, clean, and has an excellent appearance.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION As shown in FIG. 1, four-cornered square corners each having a side of 40 cm are cut into corners 11 connecting 5 cm from each corner. The shape of the board 10. The board 10 is formed by vertically and horizontally connecting square synthetic resin blocks 12 each having a side of 5 cm. At the four corners, the block 12 is in the shape of an isosceles triangle divided into two diagonal lines, and is octagonal as a whole.

A composite floorboard 1 is formed on the octagonal board 10 by laminating a wooden surface decorative board 2 which is similar to the board and slightly smaller than the board. On the composite floorboard,
A mounting edge 13 having a width of 1 cm and having no surface decorative plate is formed around the entire surface decorative plate 2.

As shown in FIG. 2, the composite floorboard 1 thus formed is placed on a substantially flat floor substrate A, and parallel wiring grooves 31 having a width of 10 cm are provided between the sides 14 of the composite floorboard.
So as to form, a regular space is provided at regular intervals in the front, rear, left and right. A cross wiring groove 32 is formed at a position where the corner cut sides 11 of the four composite floor boards 1 face each other.

A groove lid 41 and a cross lid 42 can be detachably mounted on the parallel wiring grooves 31 between the floor boards and the cross wiring groove 32 thus formed, and between the mounting edges 13 of the composite floor boards 1 on both sides. It mounts and finishes the whole surface flat and forms the double floor B with a wiring groove. Since the wooden surface decorative plate 2 is attached on the groove lid 41 and the cross lid 42, the entire surface of the double floor B with wiring grooves formed in this way covers the wooden surface decorative plate 2. . At the same time, the groove lid 41 and the cross lid 42 can be attached / detached to approach the parallel wiring groove 31 and the cross wiring groove 32, and wiring can be carried out in the wiring groove 30 connected vertically and horizontally, and the wiring can be taken out. Become.

[0014]

Example 1 FIG. 3 shows an example of a substrate 500 forming the composite floorboard 1. It is made of zinc-plated steel sheet with a plate thickness of 1.6 mm, and has a square face plate with a side of 40 cm on each side. To be octagonal. Outer edge 21 of face plate 20 including corner edge 11
A strip-shaped extension portion 22 having a predetermined width of 5 cm is formed on each of the strip-shaped extension portions 22, and the strip-shaped extension portion 22 is divided by a plurality of narrow dividing lines 23 substantially orthogonal to the outer edge 21 of the surface plate 20.
A plurality of support leg formation pieces 150 are formed.

As shown in FIG. 4, the support leg forming piece 15 is formed.
0 is bent downward at right angles to the surface plate 20 to form a disk-shaped body A having support legs 15 with a height of 4 cm.
The extension at the lower end of the support leg 15 is short and bent horizontally outward to form the grounding piece 16. At the same time, as shown in FIG. 5, the surface plate 20 is squeezed into a conical shape so that a part of the surface plate 20 is depressed to form a cup-shaped support base at the same height as the surrounding support legs 12 at 4 columns × 4 rows = 16 places. Form 17. When forming the cup-shaped support stand 17, it is desirable to form a small hole in the center of the bottom surface to facilitate the drawing process, and to cut and shape the periphery after processing. Since the surface plate 20 is supported by the peripheral support legs and the central cup-shaped support stand 17,
It has an average bearing capacity as a whole. At the same time, since it is made of a thin steel plate, it has flexibility.

As shown in the drawing, a wooden surface decorative plate 2 having a thickness of 10 mm and having a size similar to the surface shape of the base 10 and having a size smaller than that of the surface of the base 10 is attached to the base 10 thus formed. To form the composite floorboard 1. This composite floorboard 1
A mounting edge 12 having a width of 1 to 2 cm is formed all around the surface decorative plate 2. A large number of support legs 15 at the periphery,
Since it is supported by 16 cup-shaped supporting bases 17 in the central portion, it has a large supporting force. At the same time, it has a certain degree of flexibility as a whole and has a good conformability when laid on a uneven floor surface. This composite floorboard 1 having a wooden surface decorative plate 2 on its surface is excellent in aesthetics and, at the same time, easy to keep clean.

FIG. 6 shows a groove lid 41. As shown in FIG. 2 above, it is installed in parallel wiring grooves 31 formed between the side edges of the composite floorboard 1 laid at a predetermined interval. The planar shape is a rectangular groove lid substrate 40 having a width of 10 cm and a length of 30 cm, and a surface decorative plate 2 made of a wooden flat plate having a thickness of 10 mm is attached to the entire surface. The groove lid substrate 40 is formed of a rectangular zinc-plated steel sheet having a thickness of 1.6 mm, and is reinforced by providing a plurality of groove-shaped reinforcing ribs 43 which are parallel to each other in the transverse direction. The surface decorative plate 2 is formed by pasting it on the groove lid substrate 40 provided with the reinforcing ribs 43, so that the strength can be secured and it is convenient to lay it together with the composite floor plate 1 to which the surface decorative plate 2 is attached. Is good.

Shown in FIG. 7 is a cross lid 42. As shown in FIG. 2 described above, it is installed in the cross wiring groove 32. The planar shape is a substantially square zinc-plated steel plate with a side of 20 cm, and the surface decorative plate 2 made of a wooden flat plate is attached to the entire surface of the octagonal groove lid substrate 40 formed by cutting the four corners. It was formed. The groove lid substrate 40 for the cross lid is formed of a zinc-plated steel sheet having a thickness of 1.6 mm, the overall shape is a small square cut corner, and the four side peripheral edges of the surface are quadrangular reinforcing ribs 43. The central portion is reinforced by providing an X-shaped reinforcing rib 43.

As shown in FIG. 2 above, the composite floorboards 1 thus formed are separated by 10 cm,
By arranging them side by side in the front-rear and left-right directions, parallel wiring grooves 31 running vertically and horizontally are formed between the composite floorboards 1 and 1. A cross wiring groove 32 is formed at a position where the corner edges 11 of the four floor plates 1 face each other. A groove lid 41 to which the surface decorative plate 2 is attached is installed on the parallel wiring grooves 31, and a cross lid 42 to which the surface decorative plate 2 is attached is detachably installed on the crossing groove 32. Align the top surface to the same level as floorboard 1. Since the entire surface of the double floor is flat and the wooden surface decorative plate 2 is attached to the entire surface, a beautiful pattern such as a tile pattern is formed.

[0020]

Example 2 An example is shown in which a wiring groove having a depth of 7 cm and a width of 10 cm forms a double floor having wiring grooves which are continuous in length and width at intervals of 50 cm. In order to secure a long support leg of 7 cm, in this embodiment, the base itself is divided into two, and the periphery of each base is bent to form a support leg. Although the floor plate is formed by stacking the surface plate on the above, the method of forming the groove lid 41 and the cross lid 42, and the method of constructing the floor are the same as in the previous embodiment.

FIG. 8 shows a substrate 500 for forming the two-divided base 50. The substrate 500 has a thickness of 1.
It is made of 6 mm galvanized steel sheet and has a rectangular shape with a long side of about 55 cm and a short side of about 30 cm. Two corners on both sides of one long side of the rectangular substrate 500 are cut at a position 5 cm from the corner to form a trapezoidal two-divided base 50 having a deformed hexagonal planar shape.

A rectangular supporting leg forming portion 120 having a length of 8 cm and protruding outward is attached to each of six sides including the corner cutting side 11 of the two-divided base 50. The support leg forming portion 120 formed on each periphery is divided into a plurality of division lines 23 that are orthogonal to each periphery.

At two locations near both corners of the long side of the substrate 500, the retreat side 11 formed by retreating the periphery partly inside the surface
One support leg forming portion 120 is attached, each of which has a substantially rectangular shape protruding from 0 and has a protruding length of about 8 cm. In addition, a U-shaped punch 120 is provided on the substrate 500 at one location in the center of the substrate 10 to form a substantially rectangular support leg forming portion 120 that is connected to the substrate 500 on one side. The width of the support leg forming portion is about 4 cm and the length is about 8 cm.

FIG. 9 shows that the supporting leg forming portions 120 formed on the substrate 500 are refracted at substantially right angles to the same surface of the substrate 100 at the connecting line segment 29 with the substrate 500 to support them. A two-divided base 50 is formed as the leg 12. Each of the formed support legs 12 has a tip having a length of about 5 mm, which is bent substantially at right angles to the support leg body to form a grounding piece 16.

Since a large number of supporting legs 12 attached in multiple directions distribute and evenly support the load applied to the floor plate, the floor plate can be formed of a relatively thin steel plate, which is convenient. Is good. The planar shape of the support leg 12 is not limited to the rectangular shape, and the tip may be thin or the edge may be formed in a curved shape.

FIG. 10 shows two two-divided bases 50.
Face the long sides that are not cut, and place 6 between the two long sides.
Two half-divided bases 5 are made to face each other with a parallel space of a centimeter, and a thin steel plate 20 having an entire upper surface conforming to the surface shape is attached thereto and a cushion sheet 21 is interposed therebetween.
An octagonal surface decorative plate 22 having a size common to 0 is overlapped and joined to form a substantially octagonal floorboard 3 having corner cutting edges at four corners.

As shown in FIG. 11, two half-divided bases 1A
Between them is a tunnel-shaped wireway 18 with a width of 6 cm.
Is formed. This tunnel-shaped wiring path can be used as a space through which wiring can be passed or a wiring device can be accommodated.

[0028]

Since the present invention is constructed as described above, the following effects can be expected. 1 Conventionally, the surface material of the double floor has been limited to carpet tiles that can be easily attached and detached, but the tile carpet easily absorbs dust, which is not desirable in the environment. However, the present invention uses a wooden surface material as described above. It solves the problem. Since it does not absorb dust and is easy to clean, it is extremely convenient from the viewpoint of environmental protection. 2 By using a natural material such as natural wood for the surface, it is possible to provide a floor that is easy on the environment. 3 Since the base is designed to use thin steel plates to efficiently form a large number of reinforcing legs, it is possible to exert an even supporting force and to manufacture at low cost. 4 Since the surface plate is held by a large number of support legs, the load above can be distributed and received, and at the same time, it is possible to absorb the unevenness of the laid floor. 5. Since the wiring groove formed vertically and horizontally and the corner of the intersection are largely cut, the wiring can be made smooth. 6 Wiring can be changed easily because the wiring groove can be approached by attaching and detaching the groove lid and cross lid. 7 Lightweight and easy to construct as it is made of thin steel plate. 8 Since it is made of thin steel plate, the inner volume is large even with a low double floor. 9 Since the basic structure can be formed entirely of steel sheet, it is possible to provide a non-combustible, high-strength and lightweight wiring floor.

[Brief description of drawings]

FIG. 1 is a plan view showing an example of the configuration of a composite floor board.

FIG. 2 is a plan view showing an example of a wiring groove type double floor using a composite floor board.

FIG. 3 is a plan view showing another example of the configuration of the composite floor board.

FIG. 4 is a side view showing a configuration of a composite floor board.

FIG. 5 is a side sectional view showing a structure of a composite floorboard.

FIG. 6 is a plan view showing the structure of the groove lid. Incidentally, a part of the surface plate is cut out to show the internal structure.

FIG. 7 is a plan view showing a configuration of a cross lid. Similar to the groove lid, the internal structure is shown by partially cutting out the surface plate.

FIG. 8 is a plan view showing an example of a substrate for forming a two-divided base.

FIG. 9 is a perspective view showing an example of a two-divided base.

FIG. 10 is a plan view showing an example of the configuration of a composite floor board.

FIG. 11 is a side view showing an example of the configuration of a composite floor board.

[Explanation of symbols] A floor base 1 composite floorboard 10 boards 2 Surface decorative board 30 wiring groove 31 Parallel wiring groove 32 cross wiring groove 40 steel rigid substrate 41 groove lid 42 crossed lid

[Procedure amendment 4]

[Document name to be corrected] Drawing

[Correction target item name] All drawings

[Correction method] Added

[Correction content]

[Figure 1]

[Figure 2]

[Figure 3]

[Figure 4]

[Figure 5]

[Figure 6]

[Figure 7]

[Figure 10]

[Figure 8]

[Figure 9]

FIG. 11

   ─────────────────────────────────────────────────── ─── Continued front page    (71) Applicant 591004663             Application Planning Co., Ltd.             5-28-13 Shimo-Meguro, Meguro-ku, Tokyo (72) Inventor Koji Kamaki             2-1-1 Higashiueno, Taito-ku, Tokyo Freer             Nexfree Industry Co., Ltd.

Claims (12)

[Claims] 1. A corner cut point is defined as a corner cut point at the same distance on both sides from one corner of a substrate made of a square rigid plate, and has a corner cut side connecting the two corner cut points on the both sides. A corner cut surface plate is formed, and plate-like support legs of vertically descending vertically are attached to each of the five peripheral parts of the above four-divided surface plate to form a four-divided floor plate, which has the same size and the same height. The above-mentioned four-division floorboard, four at a predetermined same interval, or without, without gathering, each corner cut side is gathered toward the outside, with a substantially octagonal surface shape,
Form an octagonal corner-cutting floorboard having a predetermined height, and place a plurality of the above-mentioned corner-cutting floorboards on a substantially flat floor surface at predetermined equal intervals so that adjacent side edges are parallel to each other. Install a parallel wiring groove of a specified width between the side edges of the two adjacent corner cutting floor plates, where the parallel wiring grooves in the vertical and horizontal directions intersect, that is, the corner cutting of the four corner cutting floor plates. An octagonal crossing groove is formed on the side, and a rectangular erection lid made of a rigid plate similar to the surface plate is detachably mounted on the parallel wiring groove, and above the crossing groove. A double-floor floor with wiring grooves, in which a octagonal erection lid is removably laid across to form a substantially flat surface, and which is made of a rigid plate similar to the surface plate, On the upper surface of the rectangular erection lid and the octagonal erection lid, the size is approximately equal to the surface shape of each and the thickness is 5 to 5. 0 mm of, made in advance stuck surface veneer of natural wood or a natural bamboo, veneer with the wiring groove type double bed. 2. A portion at the same distance on both sides from two corners on the same long side of a substrate made of a rectangular rigid plate having a length ratio of the long side to the short side of about 2: 1. The corner cut surface is defined as a corner cut point, and a corner cut surface plate having a corner cut side connecting between the two corner cut points on the both sides is formed. A plate-shaped support leg is attached to form a two-part split floorboard, and the above-mentioned two-part split floorboards of the same size and the same height, with or without a predetermined interval, each corner cutting edge. To face outward to form an octagonal corner cutting floor plate having a substantially octagonal surface shape and a predetermined height, and a plurality of the corner cutting floor plates are adjacent to each other on a substantially flat floor surface. Install at equal intervals so that the edges are parallel to each other, and form parallel wiring grooves of a specified width between the side edges of the two adjacent corner cut floor plates. However, an octagonal crossing groove is formed at the intersection of the vertical and horizontal parallel wiring grooves, that is, at the corner cutting side of the four corner cutting floor plates. A rectangular erection lid, which is made of a rigid plate, is removably laid across the entire surface. In a double floor with wiring grooves, which is formed to be substantially flat, the corner cutting floor plate, the rectangular erection lid, and the octagonal erection lid have an upper surface of a size substantially equal to each surface shape. And, it is a wiring groove type double floor with a decorative plate, which is made by pasting a surface decorative plate made of natural wood or natural bamboo with a thickness of 5 to 20 mm in advance. 3. A corner cut point is defined as a corner cut point at the same distance on both sides from the four corners of a substrate made of a rigid plate having a square shape, and the corner cut side connects the two corner cut points on the both sides. A corner cut face plate is formed, and a plate-shaped support leg that vertically descends vertically is attached to each of the eight perimeters of the face plate to form an octagonal corner cut floor plate, and a plurality of the octagonal corners are formed. Place the floor slabs on a substantially flat floor surface so that the adjacent side edges are parallel to each other at a predetermined equal interval, and set a predetermined width between the side edges of the two adjacent corner floor slabs. Parallel wiring grooves are formed, and an octagonal crossing groove is formed at the intersection of the vertical and horizontal parallel wiring grooves, that is, at the corner cutting side of the four corner cutting floor plates. A rectangular erection lid, which is made of a rigid plate similar to the above-mentioned surface plate, is removably mounted on the cross groove, and a rigid member similar to that of the above-mentioned surface plate is provided on the cross groove. A double floor with a wiring groove, in which an octagonal erection lid made of a plate is detachably laid across and the entire surface is formed to be substantially flat, the corner cutting floor plate, the rectangular erection lid, and the above On the upper surface of the octagonal erection lid, a surface decorative plate made of natural wood or natural bamboo having a size substantially equal to each surface shape and a thickness of 5 to 20 mm is pasted in advance. Groove type double floor. 4. The plate-shaped support leg attached to the periphery of the surface plate is a plate-shaped support leg having a predetermined height, which is formed by bending an extension portion of the surface plate attached to the periphery of the surface plate downward at a substantially right angle. With legs,
The wiring groove type double floor with a decorative plate according to claim 1, wherein, if necessary, a tip of the supporting leg is bent again to attach a grounding piece. 5. The center portion of the surface plate has one or more supporting bases of a predetermined shape attached to the lower surface of the surface plate, and / or
Or, the wiring groove type double floor with a decorative plate according to any one of claims 1 to 4, which is supported by the support legs. 6. The support leg formed on the lower surface of the central portion of the face plate has a substantially U-shape formed by starting from both end points of a refraction line segment demarcated at a predetermined one or a plurality of positions of the face plate. A substantially rectangular, trapezoidal, or substantially tongue-shaped support member formed portion surrounded by the punched portion is formed at the position of the refraction line segment.
A plate-shaped support leg is formed by bending it at a substantially right angle, and if necessary, the lower end of the plate-like support leg is bent or bent again at a substantially right angle to form a grounding piece. Is a size substantially equal to the surface shape of the surface plate, with or without a rigid flat plate having a thickness of 1 to 3 mm, and having a thickness of 5 to 20 mm,
The wiring groove type double floor with a decorative plate according to any one of claims 1 to 5, wherein a surface decorative plate made of natural wood or natural bamboo is previously attached. 7. A surface plate exposed portion having a width of 10 to 20 mm, that is, a mounting edge is formed around the surface plate,
The wiring groove type double floor with a decorative plate according to claim 1. 8. In the corner floor board, a surface decorative board is previously attached to the entire surface of the surface board body excluding the mounting edge.
The wiring groove type double floor with a decorative plate according to claim 7. 9. In the installed state, a space having a size into which the tip of a driver can be inserted is formed at a predetermined position of at least the periphery of the octagonal installation lid, and the octagonal installation lid is detachable. The wiring groove type double floor with a decorative plate according to any one of claims 1 to 8. 10. The rectangular lid and / or the octagonal lid is composed of two composites of a rigid thin plate having an uneven reinforcing rib on a lower plate and a flat rigid thin plate on an upper plate.
A double floor with a wiring groove with a decorative plate according to any one of claims 9 to 10. 11. An octagonal floorboard, and / or a rectangular erection lid, and / or a predetermined side edge portion of the octagonal erection lid is provided with a wiring cord outlet of a predetermined shape that communicates from under the floor to above. The double floor with a floor-mounted wiring groove with a decorative plate according to any one of claims 1 to 10. 12. The octagonal floorboard, the rectangular erection lid, and the main parts of the octagonal erection lid are made of galvanized steel sheet having a thickness of 1 to 3 mm.
The double floor with a laid floor type wiring groove with a decorative plate according to claim 11.