JP2579244Y2 - Floor outlet device - Google Patents

Description

[Detailed description of the invention]

[0001]

In the present invention, a new floor is formed above a main body floor surface and is separated from the floor of the main body. The present invention relates to a floor blowing device that blows out conditioned air.

[0002]

2. Description of the Related Art A free access floor structure is employed in a room in which dust is extremely disliked, such as a computer installation room and a semiconductor manufacturing factory. In this free access floor, as shown in FIG. 7, a blowing body 10 is attached to an opening of a laid floor panel 13, and conditioned air A from the free access floor is blown into the room through the blowing body 10.

[0003] In this case, when performing so-called torsional blow-off when blowing out the conditioned air, as shown in FIG. 8, the blow-off body 10 has a fixed flange portion 11a projecting outward at the upper end and a lower portion as shown in FIG. And a pot body 12 having an outwardly extending locking flange portion 12a at the upper end thereof and a large number of ventilation holes 12b formed therein. The fixed flange portion 11a is a floor material 14 laid on a floor panel 13.
And a locking flange 12a is locked to a shoulder on the inner surface of the mouth body 11.

[0004] Further, a blowing ring 15 having a large number of slits whose blowing direction is twisted is provided in the mouth body 11.

[0005] When fixing the blowing body 10 to the floor panel 13, a mounting ring 16 having an internal thread is screwed into the male screw 11 b and the mounting ring 16 is crimped to the lower surface of the floor panel 13. Is going.

[0006]

However, the free access floor is not structurally large in load-bearing capacity, and construction costs are higher than concrete floors.

Therefore, a concrete floor is used as a new floor body.
In the case of building upward away from the floor of the main body, there are many problems in adopting the above structure.

That is, since the thickness of the floor panel of the free access floor is about 30 to 40 mm,
The air vent 12b faces the conditioned air introduction space and does not hinder the introduction of conditioned air. However, when a concrete floor is used as a new floor, even if the digit plate method is adopted, since the concrete floor thickness is required to be 120 mm or more, when the blowing body 10 is installed in the opening of the concrete floor, In this case, the height of the blowing body 10 is almost the same as or smaller than the thickness of the concrete floor, and the ventilation hole 12b is hidden in the opening, so that conditioned air cannot be introduced.

On the other hand, as a second problem, when constructing a concrete floor, a formwork corresponding to the opening is required. However, since the opening needs to be circular, a special formwork is required. It is necessary, and even if the mold is used, finishing is required later, and the finishing accuracy is not always guaranteed.

As a third problem, in order to attach the blowing body 10 to a thick concrete floor, the above-described mounting ring 1 is required.
6 cannot be used as a concrete floor sandwiching structure.

[0011] Therefore, the main problems of the present invention are to reliably attach the blowing body and to smoothly introduce conditioned air even when building thick concrete.

[0012]

The object of the present invention is to form a new floor which is separated upward from the floor of the main body, and through a blowing member provided in an opening formed in the new floor from below the new floor. A structure that blows out conditioned air into the room, wherein the blowing body is
It has a pot shape having a plurality of ventilation holes, a screw is formed on the upper outer surface thereof, a mounting ring screwed to the screw is held in contact with the opening wall surface, and at least the mounting ring of the opening has The corresponding portion has a tapered portion that expands downward, and a sleeve that substantially expands downward including the tapered portion is provided at the opening, and the outer surface of the mounting ring is crimped to the inner surface of the taper portion. Can be solved.

In this case, when the new floor is a concrete floor and the sleeve is cast with concrete as a formwork, the advantages of the present invention are more remarkable.

[0014]

According to the present invention, as shown in FIG. 1, since the sleeve 1 which is substantially entirely downward is provided at the opening of the new floor 2, the thickness of the new floor 2 is large. Also, a space is formed between the lower outer surface of the blowing body 10 and the sleeve 1, and through this space, the conditioned air from the conditioned air introduction space enters the ventilation hole 12b.

Further, when the mounting ring 3 is screwed into the threaded portion of the blow-off body 10, it comes into contact with the inner surface of the tapered portion of the sleeve 1 and further advanced, and the outer surface of the mounting ring 3 is pressed against the inner surface of the tapered portion. Therefore, the blowing body 10 is stably held with respect to the sleeve 1.

On the other hand, when the new floor 2 is a concrete floor, concrete can be cast using the sleeve 1 as a formwork, and the inner surface of the opening is shaped.

[0017]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in more detail with reference to the embodiments shown in the drawings.

FIG. 1 shows a completed state of the device of the present invention.
2 to 5 show the construction process. First, as shown in FIG. 2, the deck plate 4 is placed above the existing main body floor surface.
Is installed. Next, a sleeve 1 having a mounting flange 1a at a lower portion and having a taper that expands downward is screwed to the deck plate 4. Further, preferably Prefer closes the upper end opening of Sri <br/> over Bed 1 lid 206. The lid 6 prevents concrete from dripping into the sleeve 1.

Subsequently, concrete is poured to the height of the sleeve 1 to construct a new floor 2. After that, the lid 6 is removed, and as shown in FIG. 3, the portion of the deck plate 4 in the sleeve 1 is cut to form an opening 4a for introducing conditioned air. Next, as shown in FIG. 4, a floor material such as a carpet 7 is stuck on the upper surface of the new floor body 2.

Finally, the blowing body 10 is attached. The blower body 10 is basically a known one. When the blower body 10 is attached, a fixed flange portion 11a projecting outward from the upper end of the mouth body 11 is locked on the upper surface of the opening edge of the new floor body 2, and The pot body 12 is dropped into the inside 11, and the locking flange 12 a of the pot body 12 is locked to the shoulder on the inner surface of the mouth body 11. Furthermore, the blowing direction is formed in the mouth body 11 in a twisted shape.
Installing outlet ring 15 having a large number of slits that are (not shown in Figure 1).

When fixing the new floor body 2 of the blowing body 10, the mounting ring 3 having a female thread on the inner surface is fitted into the male screw 11 b of the mouth body 11, and this is screwed to make the tapered portion of the sleeve 1. Abut against the inner surface and further screw
The outer surface of the mounting ring 3 is pressed against the inner surface of the tapered portion. Thus, the blowing body 10 is stably held with respect to the sleeve 1.

In the above example, the sleeve 1 has a uniform downwardly expanding taper. However, except for a taper portion necessary as a fixing portion of the blow-off body 10, the entire sleeve is substantially downwardly expanding. For example, as shown in FIG. 6, a sleeve 1 'having a straight portion below the tapered portion.
And so on. However, it is not possible to employ a member having a portion projecting inward from the tapered portion.

[0023]

As described above, according to the present invention, even when thick concrete is to be constructed, the blowing body can be securely attached and the conditioned air can be smoothly introduced.

[Brief description of the drawings]

FIG. 1 is a sectional view of a main part of the device of the present invention.

FIG. 2 is a schematic view of a first stage showing a construction process.

FIG. 3 is a schematic diagram of a second stage.

FIG. 4 is a schematic diagram of a third stage.

FIG. 5 is a schematic diagram of a fourth stage.

FIG. 6 is a sectional view of a main part of another example of the sleeve as an element of the present invention.

FIG. 7 is a schematic diagram of an air conditioning mode of a free access floor structure.

FIG. 8 is a sectional view of a conventional structure for mounting a blowing body.

[Explanation of symbols]

1, 1 '... sleeve, 2 ... new floor (concrete floor),
3 mounting ring, 4 deck plate, 7 carpet, 10 blowout body, 11 mouth body, 12 pot body, 12
b: vent hole, A: conditioned air.

Claims (2)

(57) [Scope of request for utility model registration] 1. A structure in which a new floor is formed to be spaced upward from the floor of the main body, and conditioned air is blown into the room from below the new floor through a blowing member provided in an opening formed in the new floor. And wherein the blowing body has a pot shape having a plurality of ventilation holes,
A screw is formed on the upper outer surface, and a mounting ring screwed to the screw is held in contact with the opening wall surface, and at least a portion of the opening corresponding to the mounting ring has a tapered portion expanding downward. A floor outlet device characterized in that a sleeve that extends substantially downward including the tapered portion is provided in the opening, and an outer surface of a mounting ring is pressed against an inner surface of the tapered portion. 2. The floor outlet device according to claim 1, wherein the new floor is a concrete floor, and the sleeve is formed with concrete as a formwork.