JP5559734B2 - Floor panel - Google Patents

Description

  The present invention relates to a floor panel that is arranged on, for example, a floor slab of a building and blows out air-conditioned air upward.

2. Description of the Related Art Conventionally, a floor panel for floor blowing air conditioning installed at a predetermined space from a building floor slab or the like is known. This floor panel has a function of blowing the air-conditioned air flowing between the floor slab and the like upward into the room, and is disclosed in Patent Document 1, for example.
A plurality of long grooves are provided on the upper surface of the floor panel disclosed in Patent Document 1, and a plurality of through holes are formed on the bottom surface of these long grooves. As a result, when floor blowing air conditioning is performed using this floor panel, air passes from the bottom of the floor through the through hole to the upper surface side of the floor panel, and the air passing through the through hole is horizontally aligned along the long groove. To spread.

Japanese Patent No. 3456609

By the way, in the floor panel having the above-described structure, if the amount of conditioned air passing from the under floor to the floor (that is, the air flow rate) is increased, the through hole is enlarged to increase the total opening area of the through hole (opening). Rate) needs to be increased.
However, since the through hole is formed on the bottom surface of the long groove, the shape and quantity of the through hole are naturally limited to the shape of the bottom surface of the long groove. For this reason, there is a limit in increasing the ventilation rate by increasing the aperture ratio of the through holes. On the other hand, in order to increase the aperture ratio of the through hole, there is a method of increasing the bottom surface of the long groove, but this deteriorates the load bearing performance of the floor panel.
Then, an object of this invention is to provide the floor panel which can increase a ventilation volume, maintaining load bearing performance.

Floor panel of the present invention is a floor panel having a through hole formed for passing air in the underfloor space on the floor, on the panel surface with a flat surface, a plurality of long grooves are provided, wherein long groove is composed of a bottom and an inner circumferential surface, said through hole, said continuous to span and the inner peripheral surface subsequent flat surface and the flat surface, only on the flat surface and the inner peripheral side surface It is formed.
According to the above configuration, the through-holes that influence the air flow rate are formed continuously only on the flat surface and the inner peripheral side surface so as to straddle the flat surface and the inner peripheral side surface of the long groove portion following the flat surface . Compared with the case where the through hole is formed on the bottom surface, a through hole having a large opening can be formed. In other words, in the case of the through hole of the present invention, in contrast to the case where the through hole is formed on the bottom surface, if both have the same shape in a plan view, a large opening is provided.
And since it is not necessary to provide a through-hole in the bottom face of the long groove part used as an element which determines a groove width, compared with the case where a through-hole is formed in a bottom face, while improving the rigidity of a bottom face, a groove width is narrow. Many long groove portions having a rib function can be formed on the entire surface of the panel, and the load resistance performance can be maintained while maintaining the strength of the entire floor panel.

Preferably, a plurality of the through holes are arranged along the longitudinal direction in each of one region and the other region in the width direction of the long groove portion, and the through holes disposed in the one region It arrange | positions so that the through-hole arrange | positioned in said other area | region may oppose.
In addition, preferably, it has an upper material on which the flat surface and the long groove portion are formed, and a lower material arranged on the lower side of the upper material, and the lower material is on the upper material side on the back surface thereof. A concave portion that is recessed toward the bottom, and the concave portion has an inclined surface in which an air hole including a hole penetrating in the thickness direction is formed, and the inner peripheral side surface is an inclined surface inclined toward the bottom surface. The through hole is arranged to be equal to or higher than the air hole.

  As described above, according to the present invention, it is possible to provide a floor panel capable of increasing the air flow while maintaining load bearing performance.

The disassembled perspective view of the floor panel which concerns on embodiment of this invention, and the perspective view of the carpet arrange | positioned on this floor panel. The top view which shows the example of a shape of an upper material. 3A is a perspective view showing the structure of the air blowing portion, and FIG. 3B is a perspective view of the air blowing portion shown in FIG. 4A is a plan view showing the structure of the air blowing portion, FIG. 4B is a cross-sectional view taken along line BB in FIG. 4A, and FIG. 4C is C in FIG. 4A. -C sectional view. It is a modification of embodiment of this invention, Comprising: Sectional drawing at the time of cut | disconnecting in the position of the BB line of FIG. 4 (A). 6A is a perspective view showing an example of the structure on the back surface side of the lower material shown in FIG. 1, and FIG. 6B is an enlarged perspective view showing the central portion of the back surface of the lower material in FIG. 6A. Figure. The longitudinal cross-sectional view which shows a part of upper material and lower material of the floor panel shown in FIG.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.
The embodiments described below are preferred specific examples of the present invention, and thus various technically preferable limitations are given. However, the scope of the present invention is particularly limited in the following description. Unless otherwise stated, the present invention is not limited to these embodiments.

[Overview]
FIG. 1 is an exploded perspective view of a floor panel also called a double floor or a free access floor according to an embodiment of the present invention, and a perspective view of a carpet arranged on the floor panel.
In FIG. 1, a plurality of floor panels 1 are arbitrarily laid out with a predetermined space between, for example, an existing floor surface and a structure F such as a floor slab via a support (not shown). Is configured.
The underfloor space S between the floor panel 1 and the structure F serves as a duct, and air-conditioned air AR is formed in an air hole 43 formed in a later-described recess 42 and an air blowing portion 21. Through the through-hole 31 formed (in FIG. 1, only one air blowing part 21 and the concave part 42 are shown as a representative for simplification of the drawing), it is sent into the room on the floor. In addition, the floor panel 1 can be passed through the underfloor space S in a state where the electrical wiring and communication wiring are hidden as necessary.
The floor panel 1 is used in this way to serve as a floor panel for floor blowing air conditioning.

  The carpet 2 is laid on the floor panel 1 and has air permeability due to a large number of ventilation holes. Specific examples of the carpet 2 include one in which a large number of air holes are formed so as not to be seen from the surface, and one in which a number of air holes are formed so as to be visible from the surface. Examples of the shape of the ventilation hole include a round hole and a long hole. As shown in FIG. 1, the longitudinal dimension L1 and the lateral dimension L2 of the carpet 2 are set to the same value, for example, the longitudinal dimension D1 and the lateral dimension D2 of the floor panel 1, respectively.

The floor panel 1 is formed in a substantially rectangular shape as a whole, and has an upper member 10 and a lower member 11.
The upper material 10 has a plate shape as a whole and constitutes the floor of the room. The upper material 10 is also called an upper plate or a top sheet, and is made by drawing a metal plate such as steel.
The lower member 11 has a function as a reinforcing member that reinforces the rigidity or load resistance of the upper member 10, and is also referred to as a lower plate or a bottom sheet, and is preferably made by pressing a metal such as steel. Yes. In the case of this embodiment, the lower member 11 is a box-shaped member as a whole, has a substantially square upper opening, and has four side portions 11B and a bottom portion 11C.
And the upper material 10 and the lower material 11 are piled up facing each other so as to create a predetermined inner space between them except for the peripheral portion and a part of the region, and fixed by welding or the like at a plurality of locations. Has been.

[About upper material 10]
Next, the upper member 10 will be described in detail with reference to FIG. 1 and FIG. 2 which is a plan view of the upper member 10.
The upper member 10 has a substantially square shape in which the dimension D1 in the vertical direction and the dimension D2 in the horizontal direction are the same in plan view, and each dimension is, for example, about 50 cm. The upper member 10 is formed so that a wiring hole for drawing the wiring in the underfloor space into the room extends along one side, and the wiring hole is covered with a cover member 12 made of synthetic resin or the like when not used. It is hidden.
Such an upper material 10 has a plurality of types of air blowing portions 21, 22, 23, and 24 (hereinafter referred to as “air blowing portions 21 to 24”). The air blowing portions 21 to 24 are portions for supplying the air in the underfloor space into the room, and are devised so that air conditioning (that is, uniform air conditioning) can be performed on the entire surface of the panel as much as possible.
First, the air blowing parts 21-24 are comprised by the long groove part and the through-hole so that conditioned air may spread | diffuse in a horizontal direction (this point is demonstrated in detail later).
Further, the air blowing portions 21 to 24 are arranged on the entire panel surface with as little deviation as possible.

Specifically, the air blowing portions 21 to 24 are long in one direction, and all the widths W thereof are substantially the same, while the length (the dimension L3 in the longitudinal direction of the long groove portion 30 in FIG. 4 described later) is different. As a result, the size is different.
And the upper material 10 has four substantially square area | region R1-R4 divided by the straight lines B1 and B2 which pass through center CT in planar view, and each of these four area | regions R1-R4 has multiple types. Air blowing portions 21 to 24 are formed according to a predetermined pattern.

In the case of the present embodiment, the air blowing portions 21 to 24 that are long in one direction are formed along the same direction in the length direction in the same region. And the air blowing parts 21-24 arrange | positioned in two area | region R1 and area | region R3 on the same diagonal line OA1 are formed along the said diagonal line OA1. Further, the air blowing portions 21 to 24 arranged in the two regions R2 and R4 on the same diagonal line OA2 have a width formed along the diagonal line OA2.
The air blowing portions 21 to 24 have various lengths as described above, and the widths W are formed substantially the same. Preferably, the width W is reduced to reduce the air The blowout part is formed evenly on the entire panel.
In addition, this invention is not limited to the example of the arrangement | sequence of the air blowing parts 21-24 shown in FIG. 2, It can provide according to arbitrary arrangement | sequences.

The air blowing portions 21 to 24 are different in size as described above, but have the same structure. 2 will be described with reference to FIGS. 3 and 4. FIG.
3A is a perspective view showing the structure of the air blowing portion 22, and FIG. 3B is a perspective view of the air blowing portion 22 shown in FIG. 4A is a plan view showing the structure of the air blowing portion 22, FIG. 4B is a cross-sectional view taken along line BB of FIG. 4A, and FIG. 4C is FIG. 4A. It is CC sectional view taken on the line.

As shown in FIG. 3, the air blowing portion 22 has a concave long groove portion 30 formed on the upper surface (surface on the room side) of the upper member 10 and a plurality of through holes 31.
The long groove portion 30 is a portion for allowing the conditioned air that has passed through the through hole 31 to spread horizontally along the long groove portion 30 between the long groove portion 30 and the carpet 2 (see FIG. 1). For example, the upper material 10 can be formed by deep drawing.
Specifically, the long groove portion 30 includes a flat bottom surface 32 and an inner peripheral side surface 33, and the inner peripheral side surface 33 is, for example, a flat inclined surface portion inclined toward the bottom surface 22.
The bottom surface 32 is formed so as to be parallel to a flat surface (the surface of the upper material 10, which is laid and horizontal) 10 </ b> S, and has a substantially oval shape in plan view. 32A and two semicircular portions 32B formed at both ends of the rectangular portion 32A. The inner peripheral side surface 33 is formed so as to connect the rectangular portion 32A of the bottom surface 32 and the flat surface 10S, and to connect the two semicircular portions 32B and the flat surface 10S.
As shown in FIG. 4B, the thickness of the upper member 10 is, for example, 1.2 mm, the dimension from the flat surface 10S to the bottom surface 32 of the upper member 10 is 3.0 mm, and the upper member 10 The dimension from the flat surface 10S to the back surface of the bottom surface 32 is 4.2 mm.

The through-hole 31 is a hole for allowing air in the underfloor space to pass through to the room side. As shown in FIG. 4A, a plurality of through-holes 31 (see FIG. 4) are formed with respect to one air blowing portion 22. In this case, 6) are formed. In the case of the present embodiment, the plurality of through holes 31 are arranged in two regions AR1 and AR2 along the longitudinal direction of the air blowing portion 22, and the through hole 31 in one region AR1 and the through hole 31 in the other region AR2. Are arranged opposite to each other.
Each through hole 31 is continuously formed so as to straddle the flat surface 10S of the upper member 10 and the inner peripheral side surface 33 (the through hole 31 formed in the inner peripheral side surface 33 extends to the flat surface 10S. doing). For this reason, the through hole 31 has a substantially circular shape in plan view as shown in FIG. 4, but as shown in FIG. 3, the through hole 31 has an oval shape when viewed from another angle. In fact, it has a large opening area. Thereby, compared with the case where the through-hole 31 is formed only in the bottom face 32, the through-hole 31 having a large opening area is formed without reducing the load resistance. That is, even if the opening area of the through hole 31 is increased, the width W1 of the bottom surface 32 is not restricted by the size of the through hole 31 and can be freely set. Therefore, it is possible to reduce the dimension of the width W2 of the long groove portion 30 and to form many long groove portions 30 having a narrow width in the upper material 10. And since the long groove part 30 also plays the role as a rib which improves an intensity | strength, the load resistance of the upper material 10 improves as a result.

In addition, since a part of the through hole 31 is also formed on the flat surface 10S of the upper member 10, air-conditioned warm air or the like easily passes upward (inside the room) from the underfloor space. Moreover, in the case of the present embodiment, the inner peripheral side surface 33 in which the through hole 31 is formed is an inclined surface, so that air conditioned easily enters the long groove portion 30 from the underfloor space compared to the vertical surface, And the air which entered in the long groove part 30 becomes easy to spread | diffuse between the long groove part 30 and a carpet, and is suitable for the whole surface air conditioning.
Although the inner peripheral side surface 33 is an inclined surface as described above, the width W1 of the bottom surface 32 can be formed small as described above (the bottom surface 32 of the present embodiment has a width W1 of about 6 mm). The width W2 viewed from the above is not set to be extremely large. The groove width W2 is preferably set to a dimension at which the heel of the high heel is not inserted.

The bottom surface 32 of the present embodiment is a horizontal plane (parallel to the surface 10S), but the bottom surface 32 may not be formed in a horizontal plane (that is, the bottom surface 32 may not be provided). The portion 22 may have a shape as shown in FIG. 5 which is a cross-sectional view according to the modification of FIG.
That is, the air blowing portion 22A shown in FIG. 5 has substantially the same structure as the long groove portion 30 and the through hole 31 in FIGS. 3 and 4, but only the cross-sectional shape is different, and the cross-sectional shape in the width direction is an arc shape. It is said that.
Thus, by making the long groove portion 130 of the air blowing portion 22A have an arcuate (semicircular) cross section, the air flow is directed upward so that air passing through the through hole 31 does not stay in the long groove portion 130. Can be blown out.

[About the lower material 11 and the relationship between this and the upper material 10]
Next, the lower material 11 and the relationship between the lower material 11 and the upper material 10 will be described in detail with reference to FIGS. 6 and 7.
6A is a perspective view showing a structural example on the back surface 40 side of the lower material 11 shown in FIG. 1, and FIG. 6B is a central portion of the back surface 40 of the lower material 11 in FIG. 6A. It is a perspective view which expands and shows. FIG. 7 is a longitudinal sectional view showing a part after the upper member 10 and the lower member 11 of the floor panel 1 shown in FIG. 1 are connected.
As shown in these drawings, the lower material 11 has a plurality of recesses (projections when viewed from the side) 41 and 42 on the back surface 40 in order to increase the rigidity of the floor panel 1.

The recesses 41 and 42 have a dome shape that rises toward the upper material 10, a truncated cone shape such as a polygonal truncated cone or a truncated cone, or a bowl shape that is upside down, and can be formed by pressing or the like.
The concave portions 41 and 42 of the present embodiment are roughly classified into two types. The central concave portion 41 has an octagonal shape in a bottom view, and the other concave portions 42 have a substantially circular shape in a bottom view. Further, the recess 42 has various shapes and arrangements.

Specifically, in order to support the upper member 10 from below, as shown in FIG. 7, the top portions 40 </ b> P located closest to the upper member 10 of the recesses 41 and 42 are the air blowing portions 21 to 24 of the upper member 10. Is connected to the inner surface 10M where no is disposed. The top 40P and the upper member 10 are fixed by welding or the like.
The recesses 41 and 42 have a plurality of air holes 43 in order to take in the air AR conditioned in the underfloor space and supply the air AR to the upper member 10 side. The air holes 43 are formed on the inclined surfaces of the recesses 41 and 42. It is formed from a hole penetrating in the thickness direction. Thus, since both the air hole 43 and the above-mentioned through-hole 31 are formed in the inclined surface, the flow of the air which passes through the inside of a panel (inner space S1) can be made smoother. Further, as shown in FIG. 7, the through-hole 31 is arranged to be equal to or higher than the air hole 43 in the height direction.
In the case of this embodiment, as shown in FIG. 6, the plurality of air holes 43 provided in each of the recesses 41 and 42 are disposed so as to surround the top portion 40P, and supply air evenly to the internal space S1. ing.

  The floor panel 1 of the present embodiment is configured as described above, and the through hole 31 is continuously formed so as to straddle the flat surface 10S and the inner peripheral side surface 33 of the long groove portion 30 following the flat surface 10S. Therefore, compared with the case where the through-hole is formed in a flat portion such as the bottom surface 32 of the long groove portion 30, the size and shape of the bottom surface are not limited, so that the opening area can be increased. Further, the through-hole 31 is not required to be provided on the bottom surface 32 of the long groove portion 30 that determines the groove width, and increases the rigidity of the bottom surface 32 and forms a number of long groove portions 30 that function as a plurality of ribs. The load bearing performance can be maintained.

By the way, this invention is not limited to the said embodiment, Various correction and a change are possible, and a various deformation | transformation is possible in the range described in the claim.
For example, the upper member 10 and the lower member 11 of the floor panel 1 can be made of a synthetic resin having high strength in addition to being made of a metal material.
In addition, the through hole 31 is not limited to a circular shape, and may be another shape such as a rectangle or a square.
Moreover, the width | variety, length, and other dimension of the long groove part 30 and the internal peripheral side surface 33 are not specifically limited to the example of illustration, It can select arbitrarily.
In FIG. 7, the back surface 32M of the long groove portion 30 of the upper material 10 and the inner surface 40M of the bottom surface portion 11C of the lower material 11 are separated, but the back surface 32M and the inner surface 40M may be connected.

DESCRIPTION OF SYMBOLS 1 ... Floor panel, 10 ... Upper material, 10S ... Flat surface of upper material, 11 ... Lower material, 30 ... Long groove part, 31 ... Through-hole, 43 ... Air Hole

Claims (3)

A floor panel in which a through hole for allowing air in an underfloor space to pass over the floor is formed,
On the panel surface having a flat surface, a plurality of long grooves are provided,
The long groove portion is composed of a bottom surface and an inner peripheral side surface,
The through hole, the flat surface and the continuously so as to extend over the said inner peripheral side following the flat surface, the floor panel, characterized in that said formed only on the flat surface and the inner circumferential side. A plurality of the through holes are arranged along the longitudinal direction in each of one region and the other region in the width direction of the long groove portion,
The floor panel according to claim 1, wherein the through hole disposed in the one region and the through hole disposed in the other region are opposed to each other . The upper member on which the flat surface and the long groove portion are formed, and the lower member disposed on the lower side of the upper member,
The lower material has a concave portion recessed toward the upper material side on the back surface, and the concave portion has an inclined surface in which air holes including holes penetrating in the thickness direction are formed,
The inner peripheral side surface is an inclined surface inclined toward the bottom surface,
The through hole is arranged equal to or higher than the air hole.
The floor panel according to claim 1 or 2, characterized in that.