JPS62107160A - Floor substrate for wiring - Google Patents

Abstract

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

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a so-called free access floor subfloor that allows wiring under the floor.

[Conventional technology]

Conventional raised floor flooring materials include die-cast aluminum, particle board, calcium silicate board, glass fiber-reinforced cement board, pressed steel board, etc., with legs attached to the four corners of the bottom of the board that can be adjusted in height. has been used.

[Problems that the invention sought to solve] In all conventional free access floors, the plates cannot be easily cut on site, or the locations where the legs can be connected are limited to the corners, making it difficult to cut corners. If it is cut off at even one point, it will not be possible to connect it to the legs, making it troublesome to attach the legs. For this reason, the conventional method of constructing a raised floor is to raise the floor in advance using another material in a frame-like manner around the room where the floor is to be constructed, and then lay standard-sized boards inside the frame. It's here. The board is a factory product and is formed with extremely high precision, but the room is constructed on site, so the accuracy is poor, and it is not designed to be an integral multiple of the board size, and the pillars protrude and are defective. Since it is a plastic surgery, the current situation is that such picture frames need to be installed in every room.

[Means for solving problems]

In order to solve the above problems, in this invention, a material that can be cut on site is used for the plate body, and a large number of ribs are attached to the back surface of the plate body, so that legs can be attached at any location. I'll keep it.

On the other hand, by preparing flat plate-shaped auxiliary legs made of a material with a denting property and placing ribs on the auxiliary legs at at least three points, the plate can be lifted off the slab during construction. It is configured to provide space for wiring underneath.

[Effect]

When constructing this wiring subfloor in a room, standard boards are laid out in rows, and in odd spots where standard boards cannot fit, such as near walls or pillars, the boards are cut on site using a power saw.

In this invention, a large number of ribs are attached to the back surface, so no matter where the cut is made, there are ribs near the cut point.

By placing these ribs on the auxiliary legs, it becomes possible to cover the entire room with the same material.

[Example 1] As shown in FIG. 1, a surface plate 1 is prepared by extrusion molding of asbestos-reinforced cement. The front surface of the top plate is flat, and a large number of mutually parallel bevels 2 are attached to the back surface. The surface plate is 60
x60cm square, thickness is 15tm, rib width is 15t
m, height 151 m, rib spacing 70 inches, and the cross-sectional shape of the ribs is slightly thicker in the middle and protrudes.

On the other hand, auxiliary legs 3 are prepared using the same material.

The shape of the auxiliary leg is approximately trapezoidal, and a vertically extending linear groove 4 is provided on the upper surface. A thin rubber plate 5 is pasted on the bottom. The bottom side of the auxiliary leg is 5 cm, the top side is 4 cm, the height is 4 cm, the length is 3 cm, the width of the groove is such that the rib 2 of the surface plate can be inserted, and the depth is 1 cm. Therefore,
The actual height of the auxiliary leg from the bottom surface to the bottom of the groove is 3 cm.

Further, as shown in FIG. 2, auxiliary connecting legs 6 are prepared using the same material. The connecting auxiliary leg has a rectangular cross section, and has the size and shape of two of the above auxiliary legs joined horizontally. Two parallel grooves 4 are formed on the top surface. The spacing between these grooves is significant, and the spacing is such that when the two surface plates 1 are placed side by side, the ribs 2 at the ends on both sides can be inserted.

The basics of construction using these surface plates, auxiliary legs, and connecting auxiliary legs is that they should be supported at three points in theory, but in reality, as shown in Figures 1 and 3, 6 points are required for construction. Auxiliary legs 3 are used to support the parts, and a wiring space 7 is formed between the auxiliary legs under the surface plate. The supporting points are two at both ends of the surface plate in the direction in which the ribs work, and three points at both ends and the center in the direction orthogonal to the ribs to shorten the support span.

There is also a method of forming the ribs high and placing them high without using auxiliary legs, and forming a plate by cutting out the ribs only in the wiring space, but this is inconvenient as it wastes material, takes time, and increases costs. It is. It is more convenient to attach or add auxiliary legs to necessary locations as in this invention, since they can be added to any locations later. In addition, in areas where a large load is applied to the top, the number of auxiliary legs can be increased freely. The standard wiring space requires that 25φ wires can be wired crisscrossing each other vertically and horizontally, so the height of the legs was set to 300mm, but when thicker wiring is required, only the auxiliary legs need to be made higher, making it more flexible. good.

In this embodiment, a groove is provided on the upper surface of the auxiliary leg, but even if there is no groove, the desired wiring space can be secured by simply placing the rib on the block. However, by providing grooves on the auxiliary legs,
It is convenient to insert the rib into this groove so that it will not easily fall off.

Moreover, it is more stable and convenient if the ribs are fitted into the grooves.

The reason why the rib is made slightly thicker in the middle is to facilitate insertion when fitting into the groove.

To carry out actual construction using the wiring floor base of this invention, the ends of two surface plates 1 adjacent in the rib direction are placed on one auxiliary leg 3, as shown in FIG. Sharing one auxiliary leg with adjacent surface plates in this way is advantageous because there is no difference in height.

As shown in FIG. 5, when two horizontally adjacent surface plates 1 are connected using the connecting auxiliary legs 6, no steps or joint gaps occur between the surface plates.

Also, since the bottom surface is larger than the individual legs, it is stable and has high earthquake resistance.

To install the wiring flooring of this invention in one room, as shown in Fig. 6, lay it on the slab 8 regularly in the vertical and horizontal directions, and the length of one side in the direction of the ribs of the surface plate. The distance is approximately equal to that of 60 cm, and the direction perpendicular to the rib is half that, 30 cm.
After setting the auxiliary legs or connecting auxiliary legs and wiring 9 between the auxiliary legs, the top plate is placed on the auxiliary legs.

At this time, as shown in Fig. 6 and Fig. 7, the surface plate 1 of the standard size is laid as much as possible, and if there are irregular spots 12 between the wall 10, pillars 11, etc., the surface plate is Cut and bury on site using a saw. Since a large number of ribs are attached to the surface plate, there is always a rib near the cutting point 13, and this rib is placed on the auxiliary leg.

Furthermore, since it is made of a material that can be cut, it is easy to make a hole using a drill or the like when pulling out the wiring above the floor.

The material for the surface plate used in this invention is not particularly limited as long as it is rigid and can be cut on site, but asbestos, synthetic fibers, and carbon can be used as it is nonflammable and has good molding efficiency. Extruded cement plates reinforced with high tensile strength fibers, such as fibres, are most suitable. The material of the auxiliary legs may be made of cement extrusion molding, but is not necessarily limited to this; any rigid material such as metal, hard plastic, wood, synthetic wood, resin concrete, or a composite of these may be used. Bye.

Since the auxiliary legs are made of a rigid material, the surface plate or slab comes into contact with a hard object, and in order to reduce the contact, a buffer such as a thin rubber plate 5 is provided on the bottom of the auxiliary legs and/or the bottom of the groove. It is effective to paste the sheet.

〔effect〕

Since the present invention is configured as described above, it has the following features.

■ The surface plate has ribs, so it has great strength.
Moreover, it is lightweight and inexpensive.

■ Since ribs are attached, auxiliary legs can be easily attached to any location by utilizing these ribs. This makes it possible to add more legs to areas with heavy loads, or to cut the top panels on-site and cover the entire room with the top panels.

Unlike conventional methods, there is no need to construct a picture frame using other materials.

■ Since it is a plate with ribs, it can be produced by extrusion molding, allowing for inexpensive mass production.

■ Auxiliary legs can be added to accommodate areas where a large load is placed on the floor.

■ The height of the wiring space under the floor can be adjusted freely by selecting the legs.

■ By sharing one auxiliary leg with the adjacent surface plate, there are no differences in the finished surface.

[Brief explanation of drawings]

Figure 1 is a front view of the top plate placed on the auxiliary legs (some ribs are cut away), Figure 2 is a front view of the auxiliary connecting legs with the top plate inserted, Figure 3 is a side view showing the basics of the construction method, Figure 4 is a side view showing how to connect the top plates using auxiliary legs, and Figure 5 is a plan view showing how to connect the top plates using auxiliary legs for connection. Figures 6 and 6 are front views showing the method of laying and constructing, and Figure 7 is a plan view thereof. surface plate, 2: rib, 3: auxiliary leg, 4: groove, 5: rubber plate, 6: auxiliary connection leg, 7: wiring space, 8 varnish slab,
9: wiring, 10: wall, 11: pillar, 12: odd place, 1
3: Cutting location.

Claims (10)

[Claims] (1) Plane-shaped auxiliary legs made of rigid material are placed on the slab at regular intervals vertically and horizontally, and on top of the auxiliary legs are is a flat rectangular plate with many parallel ribs attached to the back side, and the ribs on the back side of the plate are placed on the auxiliary legs so that each plate is supported at at least three points. A wiring floor substrate that is characterized by being laid out. (2) The auxiliary leg is characterized in that the upper surface is provided with one or more parallel linear grooves, and the plate is placed with the ribs inserted into the grooves. A wiring floor substrate according to claim (1). (3) For areas where standard plates are lined up and left in half, the plates are cut on site to match the shape of the construction site, and the ribs near the cut edges are placed on the auxiliary legs. , a wiring flooring substrate according to claims (1) and (2). (4) The wiring flooring according to claims (1) to (3), wherein each plate is placed on auxiliary legs at at least four corners. (5) Claims (1) to (4) characterized in that the plate body is made of a cement extrusion molded plate.
Flooring for wiring as described in section. (6) For wiring according to claims (1) to (5), characterized in that two adjacent plates are respectively placed on both ends of one auxiliary leg. Subfloor. (7) Claims (1) to (6) characterized in that four plates whose corners meet each other are respectively placed at each corner of one auxiliary leg. Subfloor for wiring as described. (8) Claim No. (8) characterized in that a cushioning sheet-like material is interposed between the bottom surface of the auxiliary leg and the slab surface.
The flooring for wiring as described in items 1) to (7). (9) The flooring for wiring according to claims (1) to (8), characterized in that a cushioning material is interposed between the upper surface of the auxiliary leg and the bottom surface of the rib. (10) Claims (1) to (9) characterized in that the actual height of the auxiliary leg is 25 mm or more.
Flooring for wiring as described in section.