JPH08223746A - Floor board for formation of wiring groove and wiring floor - Google Patents

Abstract

PURPOSE: To easily perform a wiring operation by a method wherein surface boards in which support shelves a little lower than the surface boards have been formed at least in one edge of every surface board are made to correspond to each other, a wiring groove is formed and a detachable lid is installed. CONSTITUTION: A thin board 1 for formation of a floor board body is formed of a galvanized steel plate having a thickness of, e.g. 1.6mm, corner cutting points 11 are formed in points of 3.5cm from respective corners of a square surface board 10 one side of which is 45cm, and an octagon having corner cutting pieces 12 is constituted. Corner-cut remaining edge sides 13 are bent downward, and support legs 20 are formed. Support shelves 22 are formed at prescribed intervals along the edge side 13 and the corner-cut edges 12 for the surface board 10. The support shelves 22 are lowered by about 3mm from the surface board 10, their length is set at 2cm, and their depth is set at 1cm. A reinforcement stand is welded to the rear in the center of the surface board 10, and a floor board is formed. The edge sides 13 for the floor board are constructed in parallel at intervals of 5cm, wiring grooves are formed between them, and a galvanized steel plate as a lid is put on parts corresponding to the support shelves. Thereby, the lid is easily detachable, and the operability of a wiring operation can be enhanced.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wiring floor and a wiring groove forming floor board used for the wiring floor.

[0002]

2. Description of the Related Art Recently, floor-laying type wiring floors have been widely used. The inventor is the Japanese Patent Application No. 7889
No. 2 and the title of the invention, "Floorboard for Double Floor," proposed a floor-laying wiring floor using thin steel plates. Since a steel plate with high rigidity is used, there are many merits such as no fear of burning, high load strength, and a wide wiring space even if the floor height is low. However, as shown in FIG. 12, since the half-angle tubular body F whose cross-sectional shape is opened downward is used to cover the wiring groove D between the floorboards C laid at intervals, the lid is provided on both sides. It turned out that there was a problem that it was difficult to open and close the lid because it stuck to the side surface of the floorboard.

[0003]

SUMMARY OF THE INVENTION The present invention solves these problems and
An object is to provide a stationary wiring floor having a lid that can be easily opened and closed.

[0004]

To this end, according to the present invention, a supporting leg having a shape bent downward at a substantially right angle is attached to each peripheral edge of a surface plate made of a polygonal thin plate, and the back surface of the central portion of the surface plate is provided. Attaching a reinforcing base having reinforcing legs that are at the same height as the supporting legs on the periphery, over the entire length of at least one edge of the surface plate,
Or, at a predetermined place, form a wiring groove forming floor board with a support shelf a little lower than the surface board, and when constructing this, install the peripheral edges of the support shelf at a predetermined interval. A wiring groove is formed, and a thin lid is detachably installed between the support shelves so that the surfaces are at the same level.

[0005]

The lid of the wiring groove, unlike the conventional one, is very easy to attach and detach because only a thin lid is installed on the support shelf.

[0006]

Embodiment 1 FIG. 1 shows a thin plate 1 for forming a floor plate body. A corner cut point 11 is a point on the side of the plate which is 3.5 cm away from each corner of a square face plate 10 of 45 cm on a side made of a galvanized steel plate having a thickness of 1.6 mm.
Then, an octagon having a corner cut side 12 connecting the corner cut points on both sides of each corner is formed. The length of the corner cutting edge 12 is about 5 cm, and the length of the remaining edge 13 that is cut off is about 38 cm. The supporting leg 2 attached to the edge 13 is provided with an arch-shaped notch 21 communicating with the lower edge. Along the eight sides of the octagonal face plate 10, each side has a long side, and a rectangle 14 having a short side of 3 cm in length orthogonal to the long side is formed, and the rectangle 14 is formed as shown in FIG. And bend the legs downward at right angles to support legs 2 around the eight sides.
A floorboard body A having

As shown in FIG. 3, the edge 13 of the face plate 10 is
The support shelves 22 are attached at predetermined intervals along the corner edges 12. The support shelf 22 is about 3 millimeters lower than the face plate 10 and has a length of 2 cm along the edge and a depth of 1 cm.

FIG. 4 shows a reinforcing base B. Side 25 made of galvanized steel with a thickness of 1.6 mm
The reinforcing legs 3 are bent downward at right angles on each peripheral edge of a square centimeter-shaped reinforcing surface 30. An arched notch 21 is provided on the lower edge of the reinforcing leg. A square cylindrical space 31 having a side of 8 cm is formed in the center of the reinforcing surface 30, and trapezoidal reinforcing legs are formed by bending the extension of the reinforcing surface downward at right angles at the four peripheral edges of this cylindrical space. 3 is attached.

As shown in FIG. 5, a reinforcing board B is welded to the central back surface of the floorboard main body A to form a floorboard C.

As shown in FIG. 6, the reinforced floorboard C is
The edges 13 are arranged parallel to each other at regular intervals of 5 cm. A wiring groove D is formed between the floor boards C. An intersection E with a corner cut is formed at a position where the wiring groove intersects with the cross shape. Support shelves 22 are arranged around the floor plate C at predetermined intervals.

FIG. 7 shows a groove cover 4 made of a flat plate. The groove lid 4 is made of a galvanized steel plate having a thickness of 2.3 mm, and has a width of 5 cm and a length of about 38 cm. A locking protrusion 41 having a size capable of being mounted is additionally provided. The groove lid may be divided into a plurality of pieces in the longitudinal direction. Furthermore, the sheets may be divided and juxtaposed and connected by a flexible sheet or the like.

FIG. 8 shows a cross lid 5 which is a flat plate of a galvanized steel plate having a thickness of 2.3 mm for covering the intersection E. Locking protrusions 41 are provided at positions corresponding to the support shelves formed at the corners of the four floor plates forming the intersection. Since the distance between the corner cutting edge and the facing corner cutting edge becomes long, the reinforcing rod 51 is provided on the back surface of the cross lid along the diagonal line.
It is good to weld and reinforce.

Such a groove lid and a cross lid are installed between floor boards to cover the wiring grooves and the intersections and flatten the surface to complete the wiring floor. It is effective to attach a thin cushion sheet to the place where the support shelf of the floor plate and the groove lid or the cross lid are in contact with each other to prevent the metal from directly touching each other to emit a sound.

In the first embodiment, the groove lid and the cross lid are formed of flat plates, but as shown in FIG. 9, the locking projection 41 of the groove lid 4 may be bent downward at a right angle. In this case, as shown in the figure, it is desirable that the support shelf 22 be provided with a locking hole 23 so that the locking projection 41 can be inserted and fitted. The groove lid does not easily come off, and it is convenient in terms of defining the distance between floor boards.

[0015]

Second Embodiment FIG. 10 shows another example of the wiring floor. The floor board C having the same corner cutting edge as that of the first embodiment is used. Example 1
The difference is that the support shelf 22 is attached to the entire circumference of the surface plate 10. The support shelf 22 has a width of 7 mm and a depth of 1 cm. Beads 24 for reinforcement are provided at predetermined intervals between the surface material 10 and the support shelf 22, and between the support shelf 22 and the support legs 2. If the width of the support shelf is narrow, the load applied to the surface material 10 from above by the action of the beads is transmitted to and supported by the support legs.

As shown in the above figure, a floor board C is laid with a wiring groove D of 5 cm therebetween. When laying the floorboard C, it is made of rubber or cushioning resin, and the insertion grooves 6 are provided on both edges.
By using the base sheet 6 attached with 1, the support legs 2 are inserted into the respective insertion grooves 61, and the space between the floor plates is defined at the same time as the cushioning effect under the support legs. It is desirable to attach a cushioning cover 42 made of rubber or plastic to the lower ends of the reinforcing legs 3, respectively.

The groove lid 4 used here is made of a zinc-plated thin steel plate having a thickness of 2 mm, and both edges thereof are bent at a right angle of slightly less than 1 cm and are reinforced in the longitudinal direction. The groove lid 4 is installed between the support shelves 22 of the floor board C and the support shelves 22 to form a wiring floor having a flat surface. A cushioning sheet 4 made of cushioning plastic on the surface and side of the support shelf
It is convenient to attach 3 because you can eliminate the contact between metal members. It is good to use the same thing for the cross lid,
Of course, it is also possible to use a simple flat plate.

As shown in FIG. 11, the corner cutting edge 12 of the floorboard C is shown.
It is convenient to take out the wiring laid in the wiring groove on the floor by additionally providing the wiring outlet 7 connected to the lower edge.

In the first and second embodiments, octagonal floor boards with corner cuts are illustrated, but it goes without saying that the floor boards may be rectangular. Further, as a material, a thin steel plate having high strength is most suitable in terms of performance / cost, but this is not a limitation.

Further, in the embodiment, the example in which one of the reinforcing bases of the floor plate is rectangular and has a cylindrical space in the center is used, but the shape and number of the reinforcing bases are not limited to the embodiment.
When the load from the top is applied to the surface plate, it is a problem how to effectively keep the flexure below a certain level and protect it from destruction, so the size and thickness of the floor plate, etc. Depends on Also, since the surface of the reinforcing base does not need to be flat, if reinforcing grooves (beads) are attached to the reinforcing surface itself and the bending portions of the reinforcing surface and the reinforcing legs,
The reinforcing effect of the reinforcing base is further increased.

[0021]

Since the present invention is constructed as described above, the following effects can be expected. 1 Since the lid of the wiring groove is mounted on the edge of the floor plate, the lid can be attached and detached very easily, which is convenient when operating the wiring in the wiring groove. (2) Since the basic structure can be formed entirely of steel sheet, it is possible to provide a lightweight wiring floor that is non-combustible and has high strength. 3. When the thin steel plate is used, the supporting legs, the supporting shelves, etc. can be formed at one time, so that the workability is low and an inexpensive wiring floor can be provided. 4 If the floor board is cut into corners to form an octagon, it is convenient to bend the cord when wiring in the wiring groove. 5 If a rectangular floor board is used, it is difficult to support the lid at the intersection of the wiring grooves, but if a corner cut floor board is used, it is convenient because the lid can be supported at the corner cut side. 6 When using a base sheet, it is easy to determine the space between floor plates during laying work, and the space can be secured during use, so there is no risk of the lid falling off, and the smooth lid can be opened and closed. Become.

[Brief description of drawings]

FIG. 1 is a plan view showing an example of a thin plate for forming a floorboard main body.

FIG. 2 is a side sectional view of a floorboard main body.

FIG. 3 is a side sectional view (portion) showing an example of the formation state of the support shelf.

FIG. 4 is a perspective view showing an example of a reinforcing base.

FIG. 5 is a side sectional view showing an example of a floor board.

FIG. 6 is a plan view showing a situation in which a floorboard is laid.

FIG. 7 is a plan view showing an example of the groove lid.

FIG. 8 is a rear view showing an example of the cross lid.

FIG. 9 is a side cross-sectional view (partial view) showing an example of a situation in which the groove lid is installed.

FIG. 10 is a side sectional view showing an example of a floorboard floor formation state.

FIG. 11 is a perspective view showing an example of the installation status of the wiring outlet.

FIG. 12 is a side sectional view showing an example of a conventional wiring floor.

[Explanation of symbols]

 A Floor plate main body B Reinforcement base C Floor plate C1 Small floor plate D Wiring groove E Intersection F Half-width cylindrical body 10 Surface plate 11 Corner cut point 12 Corner cut edge 13 Edge 20 Support leg 21 Arched notch 22 Support shelf 23 Lock hole 24 Bead 3 Reinforcing legs 30 Reinforcing surface 31 Reinforcing edge 4 Groove lid 41 Locking protrusion 42 Buffer cover 43 Buffer sheet 5 Cross lid 6 Base sheet 61 Insertion groove 7 Wiring outlet

Claims (7)

[Claims] 1. A support leg having a shape bent downward at a substantially right angle is attached to each peripheral edge of a surface plate made of a polygonal thin plate,
On the back surface of the central portion of the surface plate, in a wiring groove forming floor plate provided with a reinforcing base having reinforcing legs having the same height as the peripheral supporting legs, over the entire length of at least one edge of the surface plate, or, A floor board for forming a wiring groove, which is provided with a support shelf which is slightly lower than the surface board at a predetermined position. 2. The floor board for forming a wiring groove according to claim 1, wherein the supporting leg and / or the reinforcing leg is provided with a notch that communicates with a lower end or a hole that does not communicate with the lower end. 3. The support leg is provided with a cutout having a narrow width extending from a lower end to an upper edge at a predetermined position, and a wiring outlet is formed on the surface plate continuously from the cutout. 1
A floor board for forming a wiring groove according to claim 2. 4. The wiring groove forming floor board according to claim 1, wherein the surface plate has a rectangular shape, or at least one corner of the rectangular shape is cut into an isosceles triangular shape. 5. The lid according to claim 1, wherein a lid is provided over the entire length of the edges on both sides or provided with a erection portion at a predetermined interval, and the lid is installed on the floor surface at a predetermined interval. A wiring floor, characterized in that the lid is erected between the support shelves formed at the edges of the wiring groove forming floor board so that the surfaces are formed at the same level. 6. A base sheet of a predetermined width, which is made of a cushioning material and has insertion grooves on both edges, prior to installing the wiring groove forming floor board according to claim 1 on the floor surface. A wiring floor, which is laid on the floor surface, and in which the supporting legs of two adjacent floor plates are inserted into each insertion groove to define the space between the floor plates. 7. A small hole or fitting unevenness is provided at a predetermined position of a support shelf of the wiring groove forming floor plate, and a small hole corresponding to the small fitting hole or fitting unevenness is provided in a lid installed on the support shelf. 7. The wiring floor according to claim 5, wherein the wiring floor is provided with fitting irregularities.