JPH0350862B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to a floor structure for a room in which equipment such as a computer is installed.

[Background technology and issues to be solved]

Conventionally, as a floor structure for rooms where computers and other equipment are installed, beams are typically installed on a concrete floor using an appropriate method, joists are fixed onto the joists, and floorboards are then laid on top of the joists. However, this type of equipment has the problem that the height of the space between the concrete floor and the floorboard is high, and because the equipment is heavy, the floorboard becomes thicker and the height dimension from the floorboard to the ceiling becomes shorter. It is necessary to install wiring and piping in the space between the concrete floor and the floorboards, such as wiring for equipment and pipes to suck in dust from the room, but there is also the problem that beams and joists can obstruct wiring and piping. It was hot.

Therefore, it has been proposed to place a large number of height-adjustable jack-bolt-like supports on the concrete floor without installing beams or joists, and to directly support the floorboards on these supports. When the equipment to be installed becomes heavier, the number of equipment must be increased, which requires a great deal of labor and is accompanied by concerns about strength.

[Disclosure of the invention]

The present invention solves the above-mentioned problems of the conventional method mainly by improving the joists, and allows easy wiring and piping while the height of the space between the concrete floor and the floorboard is relatively low. can be done,
Furthermore, the present invention aims to provide a floor structure that has a simple structure and can be easily constructed.

To this end, the present invention provides a floor structure in which a plurality of joists are fixed on a concrete floor, and a floor plate is laid across these joists to form a space between the floor plate and the concrete floor. Steps are provided in the side walls hanging down from both ends of the upper wall to form a lower part between the side walls wider than an upper part between the side walls, and a flange fixed to the concrete floor protrudes outward from the lower end of the side wall, so that at least the lower part of the side wall A large number of through holes are arranged along the longitudinal direction, and the lower surface of the joist is opened, and the side ends of the substantially rigid floorboards are supported on the steps of the joists, and at least one of these floorboards is A large number of small holes are formed in a part of the tube, passing through it in the vertical direction.

〔Example〕

Hereinafter, one embodiment of the present invention will be described with reference to the drawings.

In Figures 1 and 2, 1 is a concrete floor, 2 is a plurality of joists fixed on the concrete floor 1, 3 is a plurality of mutually parallel floor plates laid across the joists 2, and the concrete floor A space 4 is formed between 1 and the floorboard 3, and a heavy device 5 such as a computer is installed on a part of the floorboard 3.

As shown in FIGS. 3 and 4, the joist 2 is made of a punched or bent metal plate such as a steel plate, and side walls 2b are suspended from both ends of the upper wall 2a. A step part 2c is provided at the middle part of the side wall 2b in the vertical direction and horizontally protrudes outward, and the lower part between the side walls 2b is wider than the upper part between the side walls 2b.
is provided protrudingly, and the lower end of the joist 2 is opened. Further, below the step 2c of the side wall 2b, a large number of through holes 2e are provided facing each other at predetermined intervals along the longitudinal direction of the joists 2, and above the step 2c of the side wall 2b, a large number of through holes 2e are similarly provided. A through hole 2f is provided. Note that the through hole 2e at the bottom of the side wall 2b is connected to the joist 2.
A long hole long in the longitudinal direction, a through hole 2 in the upper part of the side wall 2b
f is a round hole.

The joist 2 as described above has a flange 2d supported on the concrete floor 1, and an appropriate fixing device 6 attached to the flange 2d.
It is fixed by.

The floor plate 3 is made of a noncombustible and substantially rigid plate such as a metal plate such as an aluminum die-cast product, a reinforced concrete plate, or a concrete plate with a metal frame, and has a large number of small holes 3a passing through it in the vertical direction. They are formed over the entire surface in an appropriate arrangement, and cutouts 3b are formed on the lower surface of both ends.

The floorboard 3 as described above has notches 3b at both ends.
It is supported on the stepped portion 2c of the joist 2 outside the range of , and is arranged so that the opposing side edges of adjacent floorboards 3 are substantially in contact with each other on the joist 2. Note that the floorboard 3 has a notch 3
It is preferable that the upper surface b is also supported by the upper wall 2a of the joist 2, and preferably fixed to the joist 2 by appropriate means.

Furthermore, as shown in FIGS. 2 and 5, a mouse-proofing barbed wire 7 is provided in the space 4 corresponding to the outer periphery of the required floorboard 3, and this barbed wire 7 is connected to chestnut char. It is made of iron or other metal, or synthetic resin wire, having barbs 7a in the shape.

The floor structure of the embodiment configured as described above is
A joist 2 fixed directly onto the concrete floor 1 without using a large number of joists or bolts.
Since the floor plate 3 is supported on the stepped portion 2c, the height dimension of the space 4 between the floor plate 3 and the concrete floor 1 can be shortened, and the effective height between the floor plate 3 and the ceiling can be increased. It's easy to do.

In addition, in this embodiment, the joist 2 is inserted into an appropriate number of through holes 2e provided in the lower part of the side wall 2b.
Wiring to equipment 5 such as a computer installed on the floorboard 3 and piping for suctioning dust from the room through the small holes 3a of the floorboard 3 are easily provided in the space 4 between the floorboard 3 and the concrete floor 1. I can do it. In this case, since a large number of through holes 2e of the joist 2 are arranged along the longitudinal direction of the joist 2, the wiring and piping can be arranged at the required shortest distance or a distance close to this. And the side wall 2b of the joist 2
The through hole 2e provided in the lower part and the through hole 2f provided in the upper part of the side wall 2b help to reduce the weight of the joist 2.

In this embodiment, since the floorboard 3 is provided with a large number of small holes 3a, it is also useful for reducing noise in the room caused by the equipment 5 installed on the floorboard 3 in the room. That is, since the large number of small holes 3a provided in the floorboard 3 penetrate the floorboard 3 and communicate with the space 4 below, the equipment 5 is The acoustic energy of the noise emitted by the device 5 can be absorbed and attenuated, thereby reducing the noise in the room in which the device 5 is installed.

Furthermore, in this embodiment, the floor plate 3 is provided with a large number of small holes 3a extending through its thickness, that is, in the vertical direction. By connecting it to a blower and drawing air from the intake pipe, dust in the room can be removed, helping to purify the air in the room.

In this embodiment, the blower operates intermittently, and operates only when the equipment 5 is stopped. Further, in the present invention, it is not necessary to provide an intake pipe and a blower.

Furthermore, in this embodiment, since the notches 3b are formed at both ends of the floorboard 3, the upper wall 2a of the joist 2 is not exposed in the room, and the joist 2 has a good appearance. The height of the space 4 can be made shorter than when a floorboard is placed on the top wall of the space.

In addition, in the present invention, it is possible to support the floorboard on the stepped part of the joists without providing a notch, as long as the appearance is not too much of a problem, and the floorboard can be used for equipment installation or some similar parts. It is not necessary to provide a large number of small holes in only one part of the floorboard, and not to provide any small holes in other parts.Furthermore, as long as the material of the floorboard is a substantially rigid body, an appropriate material can be used. Further, according to the present invention, by changing the height of the stepped portion of the joist, the height dimension between the floorboard and the concrete floor can be adjusted.

〔Effect of the invention〕

As explained above, the present invention uses a joist in which a step is provided in the side wall so that the lower part is wider than the upper part, and a large number of through holes are provided along the longitudinal direction in the lower part of the side wall, and the joist is attached to a concrete floor. In addition to directly fixing the floorboards, the side edges of the floorboards were supported on the stepped portions of the joists, and at least some of the floorboards were formed with numerous small holes vertically penetrating them, thereby reducing the space between the concrete floor and the floorboards. Even if the height dimension of the floor structure is short, it is possible to provide a floor structure with a simple structure that allows wiring and piping to be easily installed in this space, and the assembly or construction of the floor structure of the present invention is also easy, Furthermore, since a large number of small holes in the floorboard communicate with the space below the floorboard, noise emitted by equipment installed in the room is absorbed by the small holes and the space, reducing the noise inside the room. The effect is that it can be reduced.

[Brief explanation of drawings]

Fig. 1 is a partial vertical sectional view showing an embodiment of the present invention, Fig. 2 is a partially cutaway plan view of the same embodiment, and Figs. 3 and 4 are a partial side view and cross-sectional view of a joist. The top view and FIG. 5 are cross-sectional views of the barbed rod wire. 1... Concrete floor, 2... Joist, 2a...
Upper wall, 2b... side wall, 2c... step, 2d... flange, 2e... through hole, 3... floor plate, 3a...
Small hole, 3b... Notch, 4... Space, 5... Equipment, 6... Fixture.

Claims (1)

[Scope of Claims] 1. In a floor structure in which a plurality of joists are fixed on a concrete floor and a floor plate is laid across these joists to form a space between the floor plate and the concrete floor, the joist is Steps are provided on the side walls hanging down from both ends of the wall to form a lower part between the side walls wider than an upper part between the side walls, and flanges fixed to the concrete floor are protruded outward from the lower ends of the side walls, and a large number of flanges are provided at least at the lower part of the side walls. Through holes are arranged along the longitudinal direction, and the bottom surface of the joists is opened, and the side ends of the substantially rigid floorboards are supported on the steps of the joists, and at least one of the floorboards is A floor structure characterized in that a large number of small holes are formed in the part to penetrate in the vertical direction. 2. The floor according to claim 1, wherein the floorboards have cutouts formed on the lower surfaces of both ends supported on the stepped portions of the joists, so that the opposing side edges of adjacent floorboards are substantially in contact with each other on the joists. Structure. 3. The floor structure according to claim 1 or 2, wherein the through hole provided in the lower part of the side wall of the joist is a long hole that is elongated in the longitudinal direction of the joist.