JP2019152023A - Surface material of free access floor for floor blowing type air-conditioning - Google Patents

Abstract

To provide surface material of a free access floor for a floor blowing type air-conditioning not only which can prevent air supply to a living room from an underfloor space from being suppressed but also on which various patterns and decorations of designs on a surface thereof can be formed without any trouble.SOLUTION: A surface material 16 of a free access floor composes a part of a second floor part 9 arranged on a floor panel 8 composing the second floor part 9 arranged apart above a first floor part 4a composing a building construction in part, wherein a surface of the surface material 16 is formed in flat and a part 16b of a ventilation passage formed in a direction of the surface material passes air blowed out of a floor blowing type air-conditioning system 2 toward a living room 4c above the second floor part 9 from an under-floor space 4b below the second floor part 9.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a surface member of a floor access air-conditioning free access floor, which is laid on a floor surface under the feet of a walking person in a room such as an office or a server room.

  As air conditioning systems for rooms such as offices and server rooms, in addition to the widespread use of ceiling air-conditioning systems in which air whose temperature is adjusted is blown from air conditioners installed on the ceiling of the room, the floor of the room There has also been known a floor blowing type air conditioning system in which air whose temperature is adjusted from the surface is blown (see, for example, FIG. 1 of Patent Document 1).

  FIG. 7 is a diagram which is referred to for explaining the floor blowing air conditioning system 2 of the conventional floor blowing method.

  As shown in FIG. 7, the conventional floor air-conditioning system 2 has a living room floor 9 (first floor) with a space above a concrete basic floor surface 4a (first floor) constituting a part of a building structure. 2 floors), the room 4 in which the underfloor space 4b is formed between the basic floor surface 4a and the living room floor 9 and the air conditioner 10 installed outside the room 4 are configured.

  The living room floor 9 has a plurality of floor panels 8 having a predetermined thickness and a planar shape formed in a substantially square shape so as to be adjacent to each other in the horizontal direction. It is configured like a free access floor formed by a plurality of support legs 6 erected on the foundation floor surface 4a of 4 and supported horizontally at a predetermined interval above the foundation floor surface 4a. It was.

  Thus, the room 4 is configured such that the room 4 c is formed above the room floor 9 and the underfloor space 4 b is formed below the room floor 9.

  Further, as shown in FIG. 7, the wall portion of the room 4 c of the room 4 is formed with an exhaust port 4 d that opens to communicate with the outside of the room 4 in the upper part of the room 4 c, and below the floor of the room 4. An air supply opening 4 e that opens so that the underfloor space 4 b communicates with the outside of the room 4 was formed in the wall portion of the space 4 b.

  The exhaust port 4d and the air supply port 4e are connected to an air conditioner 10 installed outside the room 4 through an air duct (not shown), and the operation of the air conditioner 10 causes the exhaust port 4d to move to the living room 4c. The inside air was exhausted, and the air whose temperature was adjusted was supplied from the air supply port 4e to the underfloor space 4b.

  In addition, as shown in FIG. 7, the plurality of floor panels 8 forming the living room floor 9 are provided with a large number of ventilation holes 8 a penetrating the floor panel 8 in the thickness direction on the surface of each floor panel 8. The air supplied to the underfloor space 4b by the air conditioner 10 is supplied into the living room 4c of the room 4 through the ventilation holes 8a.

  By using such a floor blowing air-conditioning system 2, the air in the room 4c of the room 4 was kept at an appropriate temperature and a clean state.

  Such a floor-blowing air conditioning system 2 is less susceptible to airflow and noise from the air-conditioner in the living room 4c than a ceiling-blowing air-conditioning system. Since the air conditioning can be performed by narrowing down, the air conditioning efficiency is excellent, and it is not necessary to install an air conditioner on the ceiling of the room, so that there is an advantage that the design and decoration of the room ceiling can be freely selected.

  On the other hand, in a room such as an office or a server room as described above, the floor surface under the foot of a person walking in the room is due to various design requirements such as comfort (design) and quietness. A wide variety of surface members with different materials and designs were laid.

  8 to 10 are views referred to for illustrating and explaining some of the surface members of such a conventional free access floor.

  As a surface member of a conventional free access floor, for example, a surface member 12 such as a piling tile such as a P tile having a predetermined thickness and a substantially square shape as shown in FIG. 8 is used. It was.

  As the surface member 12, for example, a vinyl chloride P tile, an HPL (high pressure laminate) tile, or the like is used, and the surface 12a is simply formed flat (see FIG. 8B). In addition, various shapes and designs of shapes such as wood and stone were used.

  In such a conventional surface member 12, a plurality of surface members 12 are arranged side by side in the horizontal direction without any gaps by bringing the opposing side portions of the adjacent surface members 12 into contact with each other. It was laid on the floor panel 8 provided with a large number of holes 8a provided in the floor.

  Moreover, as a surface member of another conventional free access floor, for example, a surface member 14 of a flooring board forming a flooring floor as shown in FIGS. 9 and 10 has been used.

  As shown in FIGS. 9A and 10, the surface member 14 of the flooring board has a predetermined thickness, a planar shape is formed in an elongated plate shape, and the surface 14a is formed flat. For example, it was formed of a wooden board or plywood.

  A short side portion of the surface member 14 formed in an elongated plate shape, that is, one end surface of both end portions in the length direction of the surface member 14, as shown in the left side of FIG. Is formed so as to protrude from the end face toward the outer side (left side in the figure) in the length direction (left and right direction in the figure) of the surface member 14.

  And the other end face of the both ends in the length direction of the surface member 14, that is, the end face on the opposite side in the length direction (the right side in FIG. 10A) with respect to the end face on which the fitting protrusion 14c is formed. The fitting groove 14d having a U-shaped cross section is formed so as to be recessed from the end face toward the inside (left side in the figure) in the length direction (left and right direction in the figure) of the surface member 14. .

  As shown in FIG. 10A, the fitting convex portion 14 c and the fitting groove 14 d are formed in shapes and dimensions so that the respective cross-sectional shapes are fitted to each other. From the end on the near side in the width direction (perpendicular to the paper surface of FIG. 10A) perpendicular to the length direction of the surface member 14 (left-right direction in the figure) at the end surfaces of the both ends in the vertical direction, It was formed continuously to the end of the.

  Further, as shown in FIG. 10 (b), the long side portion of the surface member 14, that is, each long side portion where both ends in the width direction (left and right direction in the drawing) of the surface member 14 are continuous, Overhanging portions projecting so that the thickness portions on the surface 14a side of the surface member 14 in the thickness direction (vertical direction in the drawing) of the respective end faces of both end portions protrude toward the outside in the width direction of the surface member 14 14e was formed.

  As shown in FIG. 9B, the overhanging portion 14 e has one side in the length direction of the surface member 14 at each side portion where both end portions in the width direction of the surface member 14 are continuous in the length direction. It was formed continuously from one end to the other end.

  Further, as shown in FIG. 10 (b), the corners of the cross section on the surface 14a side of the overhanging portions 14e of both end portions in the width direction of the surface member 14 are chamfered by chamfering the corner portions. The chamfered portion 14g formed with the surface member 14 was continuously formed from one end portion in the length direction of the surface member 14 to the other end portion.

  Further, as shown in FIGS. 9B and 10A, a plurality of back surface grooves 14f extending in the width direction of the surface member 14 are formed on the back surface 14b of the surface member 14, and the plurality of back surface grooves 14f are formed. Were formed in parallel with each other at a predetermined interval in the length direction of the surface member 14.

  As shown in FIG. 10A, the back surface groove 14f is formed so that the cross-sectional shape is recessed in a reverse U-shaped groove shape from the back surface 14b of the front surface member 14 to the front surface 14a. As shown, it was formed continuously from one end to the other end in the width direction of the back surface 14b of the front surface member 14.

  In such a conventional surface member 14, the plurality of surface members 14 are arranged side by side in the horizontal direction without any gaps by bringing the opposing side portions of the adjacent surface members 14 into contact with each other. It was laid on the floor panel 8 provided with a large number of holes 8a provided in the floor.

  At this time, the fitting protrusions 14 c provided on the surface member 14 are fitted into fitting grooves 14 d provided on another surface member 14 adjacent in the length direction of the surface member 14, thereby providing a plurality of surfaces. The members 14 were continuously arranged in the length direction without any gaps.

  Further, each of the surface members 14 adjacent to each other by the overhanging portion 14 e provided on the surface member 14 being adjacent to the overhanging portion 14 e provided on another surface member 14 adjacent in the width direction of the surface member 14. The chamfered portions 14g chamfered on the overhanging portion 14e face each other to form a V-shaped joint of flooring.

  Further, since the front surface member 14 has a plurality of back surface grooves 14f formed on the back surface 14b, the front surface member 14 is slightly more easily bent than those not provided with the back surface groove 14, and is easy to handle during construction. It was.

JP-A-5-164393

  However, the conventional floor blowing air conditioning system 2 as described above has a problem that the conventional surface members 12 and 14 such as the floor tiles and flooring boards as described above cannot be used.

  That is, in the room 4 in which the floor blowing air conditioning system 2 as shown in FIG. 7 is installed, when the conventional surface members 12 and 14 as shown in FIGS. 8 to 10 are laid on the living room floor 9, Since these surface members block the ventilation holes 8a of the floor panel 8, there is a problem in that the air supplied from the air conditioner 10 to the underfloor space 4b is prevented from being supplied from the underfloor space 4b to the living room 4c. was there.

  And the air supplied to the underfloor space 4b from the air conditioner 10 of the room 4 where the floor blowing air conditioning system 2 is installed on the conventional surface members 12 and 14 having flat surfaces as shown in FIGS. A ventilation path for supplying the living room 4c from the underfloor space 4b, for example, a surface such as a through hole is provided on the surface thereof. When viewed from the height of the human eye in the living room 4c, the through hole If the opening on the front side becomes conspicuous, there is a possibility that a problem may arise when trying to form various designs or patterns such as wood grain on the surface of the surface member.

  Therefore, in view of the above problems, the present invention can prevent the supply of air from the underfloor space to the living room from being hindered, and can easily form various designs and patterns on the surface thereof. An object of the present invention is to provide a surface member of a floor access air-conditioning free access floor.

In order to solve the above problems, the surface member of the floor access air-conditioning free access floor according to the present invention,
A part of the second floor part is provided on a floor panel constituting a part of the second floor part provided with a space above the first floor part constituting a part of the building structure. A surface member of a free access floor,
As the surface member, one having a flat surface is used,
A part of the ventilation path through which the air sent from the floor blowing air conditioning system passes from the under-floor space below the second floor toward the room above the second floor is formed in the thickness direction of the surface member It is characterized by that.

Moreover, the surface member of the free access floor for floor blowing air conditioning according to the present invention is:
A part of the ventilation path is constituted by a ventilation hole penetrating the surface member in the thickness direction.

Moreover, the surface member of the free access floor for floor blowing air conditioning according to the present invention is:
The vent hole is characterized in that the diameter of the opening on the back surface side of the surface member is larger than the diameter of the opening on the surface side of the surface member.

Moreover, the surface member of the free access floor for floor blowing air conditioning according to the present invention is:
The ventilation hole is formed so that the opening on the surface side of the surface member is a circular hole having a diameter of about 0.2 to 1.2 mm.

Moreover, the surface member of the free access floor for floor blowing air conditioning according to the present invention is:
As the surface member, an installation tile having a planar shape formed in a substantially square shape is used.

Moreover, the surface member of the free access floor for floor blowing air conditioning according to the present invention is:
On the back surface of the surface member, a back surface groove having a reverse U-shaped cross-section is continuously formed from one end portion to the other end portion in the width direction of the back surface,
In the side portion parallel to the length direction of the surface member, a middle portion in the length direction of the side portion is recessed toward the inside in the width direction of the surface member, and the upper end in the thickness direction of the side portion A side opening that is continuously cut from the bottom to the bottom is formed,
A part of the ventilation path is formed by the internal spaces of the back surface groove and the side opening being communicated with each other at either end of the back surface groove in the width direction of the surface member. It is characterized by that.

Moreover, the surface member of the free access floor for floor blowing air conditioning according to the present invention is:
A second back surface recess having a shallow depth is formed on the back surface of the front surface member,
The width dimension of the second back recess is formed larger than the width dimension of the back groove,
The second back surface recess is formed on the back surface of the surface member so as to intersect the back surface groove,
A part of the ventilation path is configured such that internal spaces of the back surface recess and the back surface groove communicate with each other at a portion where the back surface recess and the back surface groove intersect. .

Moreover, the surface member of the free access floor for floor blowing air conditioning according to the present invention is:
The surface member is a flooring board having a planar shape formed in an elongated plate shape.

According to the surface member of the floor access air conditioning free access floor of the present invention,
A part of the second floor part is provided on a floor panel constituting a part of the second floor part provided with a space above the first floor part constituting a part of the building structure. A surface member of a free access floor,
As the surface member, one having a flat surface is used,
A part of the ventilation path through which the air sent from the floor blowing air conditioning system passes from the under-floor space below the second floor toward the room above the second floor is formed in the thickness direction of the surface member As a result,
It is possible to prevent the supply of air from the underfloor space to the living room from being obstructed, and various designs and patterns can be formed on the surface without any problem.

It is a figure which shows the surface member 16 of the free access floor for floor blowing air conditioning which concerns on the 1st Embodiment of this invention, Fig.1 (a) is the top view, FIG.1 (b) abbreviate | omitted one part It is an AA line arrow expanded sectional view of Drawing 1 (a). It is a schematic side view which shows the state by which the surface member 16 was laid on the living room floor 9 of the room 4 in which the floor blowing air conditioning system 2 was installed. It is a figure which shows the surface member 20 of the floor blowing air conditioning free access floor which concerns on the 2nd Embodiment of this invention, Fig.3 (a) is the top view, FIG.3 (b) abbreviate | omitted one part It is a BB line expanded sectional view of Drawing 3 (a). It is a figure which shows the surface member 20 provided with the vent hole 22,23,24 of another different form, It is the BB arrow expanded sectional view of Fig.3 (a) which abbreviate | omitted the part. It is a figure which shows the surface member 18 of the free access floor for floor blowing air conditioning which concerns on the 3rd Embodiment of this invention, Fig.5 (a) is a top view of the surface 18a, FIG.5 (b) is the one part It is the expanded bottom view of the back surface 18b which abbreviate | omitted. It is a figure which shows the surface member 18 of the floor blowing air-conditioning free access floor, FIG.6 (a) is the CC sectional arrow expanded view of FIG.5 (a) which abbreviate | omitted the part, FIG.6 (b) FIG. 6 is an enlarged cross-sectional view taken along the line D-D in FIG. It is a schematic side view for demonstrating the conventional floor blowing air conditioning system 2. FIG. It is a figure which shows the surface member 12 of the conventional free access floor, Fig.8 (a) is the top view, FIG.8 (b) expands the EE arrow line view of Fig.8 (a) which abbreviate | omitted the part. It is sectional drawing. It is a figure which shows the surface member 14 of the conventional free access floor, Fig.9 (a) is the top view, FIG.9 (b) is the enlarged bottom view which abbreviate | omitted the part. It is a figure which shows the surface member 14 of the conventional free access floor, Fig.10 (a) is the FF line expanded sectional view of FIG.9 (a) which abbreviate | omitted the part, FIG.10 (b) is the figure FIG. 10 is an enlarged cross-sectional view taken along line GG in FIG.

  EMBODIMENT OF THE INVENTION Hereinafter, the form for implementing the surface member of the free access floor for floor blowing air conditioning which concerns on this invention is demonstrated concretely based on drawing.

  FIG. 1 is a view referred to for explaining the surface member 16 of the floor blowing air conditioning free access floor according to the first embodiment of the present invention.

  The surface member 16 of the floor access air conditioning free access floor according to the present embodiment has a predetermined thickness as shown in FIG. 1 (b), and the planar shape thereof is as shown in FIG. 1 (a). In addition to being formed in a substantially square shape, the surface 16a is formed in the form of a floor tile such as a P tile formed flat.

  As the surface member 16 of the floor access air conditioning free access floor, for example, a vinyl chloride P tile, an HPL (high pressure laminate) tile, or the like is used, and the surface 16a is simply formed flat (FIG. In addition to 1 (b)), it is possible to use shapes and designs of various designs such as woodgrains and stones.

  As shown in FIG. 1B, a large number of ventilation holes 16b penetrating the surface member 16 in the thickness direction are formed on the surface 16a of the surface member 16.

  The ventilation hole 16b is formed so that the opening on the surface 16a side is a circular hole having a diameter of about 0.2 to 1.2 mm.

  In the surface member 16 of the floor blowing air conditioning free access floor according to the present embodiment as described above, as shown in FIG. 2, a plurality of surface members 16 are connected to the opposing side portions of the adjacent surface members 16. By bringing them into contact with each other and arranging them side by side in the horizontal direction, they can be laid on the living room floor 9 of the room 4 in which the floor blowing air conditioning system 2 is installed.

  At this time, as shown in FIG. 2, among the large number of ventilation holes 16 b formed in the surface member 16 disposed on the floor panel 8, the openings of the ventilation holes 16 b on the back surface side of the surface member 16 are A ventilation hole 16 b in which the whole or a part of the cross-sectional area of the opening on the surface member 16 side of the ventilation hole 8 a of the floor panel 8 overlaps with the ventilation hole 8 a of the floor panel 8.

  As a result, a ventilation path is formed such that air from the underfloor space 4b of the room 4 flows through the ventilation holes 8a of the floor panel 8 and through the ventilation holes 16b of the surface member 16 to the living room 4c. The ventilation hole 16b of the surface member 16 constitutes a part of the ventilation path through which air passes from the underfloor space 4b of the room 4 to the living room 4c.

  Thereby, the air supplied to the underfloor space 4b from the air conditioner 10 of the room 4 in which the floor blowing air conditioning system 2 is installed is configured to be supplied to the living room 4c through the ventilation path.

  In the surface member 16 of the floor blowing air conditioning free access floor according to the present embodiment as described above, the ventilation hole 16b formed in the surface member 16 has an opening diameter of 1.2 mm from the surface 16a side. Since it is formed to be small, when the surface member 16 disposed on the floor panel 8 is viewed from the height of the human eye in the living room 4c, the ventilation holes 16b are formed in the surface 16a of the surface member 16. It is difficult to determine that it is provided.

  Therefore, there is little influence which the ventilation hole 16b has on the form of the surface 16a of the surface member 16, and it can be said that there is no problem in forming various designs and patterns on the surface 16a of the surface member 16. it can.

  Further, since the air hole 16b is formed so that the diameter of the opening on the surface 16a side is larger than 0.2 mm, the air hole 16b is blocked by dust, dust or the like while the surface member 16 is used. It has become difficult.

  According to the surface member 16 of the floor blowing air conditioning free access floor according to the present embodiment as described above, it is possible to prevent the air from being prevented from being supplied from the underfloor space to the living room, and various surfaces can be provided on the surface. A design and pattern of a simple design can be formed without problems.

  FIGS. 3 and 4 are views referred to for explaining the surface member 20 of the floor blowing air conditioning free access floor according to the second embodiment of the present invention.

  The surface member 20 of the floor blowing air-conditioning free access floor according to the present embodiment is replaced with the air vent 16b in the surface member 16 of the floor blowing air-conditioning free access floor according to the first embodiment shown in FIG. In the point provided with the ventilation hole 21 as shown to b), the structure differs from the surface member 16 which concerns on the said 1st Embodiment.

  That is, as shown in FIG. 3B, the surface member 20 has a predetermined thickness, as shown in FIG. 3A, like the surface member 16 according to the first embodiment. The planar shape is formed in a substantially square shape, and the surface 20a is formed in a flat tile shape such as a P tile with a flat surface. The surface member 20 is formed on the surface 20a of the surface member 20 in the thickness direction. A large number of ventilation holes 21 penetrating therethrough are formed.

  As shown in FIG. 3 (b), the vent hole 21 has an upper end opened to the surface 20 a side of the surface member 20, and a circular front surface hole formed by extending in the thickness direction of the surface member 20. A circular hole-shaped back side hole portion having a diameter larger than that of the front side hole portion 21a and having a lower end portion opened on the back surface 20b side of the surface member 20 and extending in the thickness direction of the surface member 20 The lower end portion of the front side hole portion 21 a and the upper end portion of the back side hole portion 21 b are configured to communicate with each other at a thickness position in the middle of the thickness direction of the surface member 20.

  That is, as shown in FIG. 3B, the diameter of the opening on the back surface 20b side of the ventilation hole 21 is formed larger than the diameter of the opening on the surface 20a side of the ventilation hole 21b.

  And the front side hole part 21a of the ventilation hole 21 has the diameter of about 0.2-1.2 mm in the opening part on the surface 20a side similarly to the ventilation hole 16b in the surface member 16 which concerns on the said 1st Embodiment. It is formed to be a circular hole.

  Also with the surface member 20 according to the present embodiment, the floor panel 8 of the living room floor 9 of the room 4 in which the floor blowing air conditioning system 2 is installed is provided, similarly to the surface member 16 according to the first embodiment. As a result, a ventilation path is formed so that air from the underfloor space 4b of the room 4 flows through the ventilation holes 8a of the floor panel 8 and through the ventilation holes 21 of the surface member 20 to the living room 4c. The

  Moreover, according to the surface member 20 which concerns on this Embodiment, since the back side hole part 20e is provided in the ventilation hole 21, it is more compared with the surface member 16 which concerns on the said 1st Embodiment. Air can be efficiently supplied from the underfloor space 4b of the room 4 to the living room 4c.

  That is, since the opening on the back surface 20b side of the ventilation hole 21 formed in the surface member 20 is formed larger than the diameter of the opening on the surface 20a side, the surface member 16 according to the first embodiment and In comparison, the opening area on the back surface 20b side of the ventilation hole 21 is increased, and when the surface member 20 is laid on the floor panel 8, the ventilation hole 8a of the floor panel 8 is less likely to be blocked by the surface member 20, Many ventilation holes 21 are configured to communicate with ventilation holes 8 a formed in the floor panel 8.

  And, compared with the surface member 16 according to the first embodiment in which the back side hole 21b is not provided, more air can be efficiently supplied from the underfloor space 4b of the room 4 to the living room 4c. The diameter of the ventilation holes 21 formed in the surface member 20 can be reduced or the number thereof can be reduced, and the ventilation holes 21 can be made less noticeable.

  Moreover, according to the surface member 20 which concerns on this Embodiment, the ventilation hole 21 is provided with the back side hole part 20e in the ventilation hole 21, compared with the surface member 16 which concerns on the said 1st Embodiment. The workability at the time of forming can be improved.

  That is, when performing the process of forming the ventilation hole 21 in the surface member 20, the small-diameter hole (front-side hole) is formed by forming the small-diameter front-side hole 21a after forming the large-diameter back-side hole 21b. Since the depth of processing for forming the portion 21a) is from the surface 20a of the surface member 20 to the upper end portion of the back side hole portion 21b, a small diameter hole (ventilation hole 16b) extends from the upper end to the lower end in the thickness direction. Compared to the continuously formed surface member 16 according to the first embodiment, the depth for forming the small-diameter hole (front-side hole portion 21a) can be made shallower.

  As a result, when processing to form a hole having a small diameter (front-side hole portion 21a), it is possible to prevent the tool for processing the fine hole from being broken due to a load during processing, and to prevent cutting chips during processing. Therefore, the workability at the time of forming the vent hole 21 can be improved.

  According to the surface member 20 of the floor access air conditioning free access floor according to the present embodiment as described above, it is possible to prevent the air from being prevented from being supplied from the underfloor space to the living room, and various surfaces can be provided on the surface. A design and pattern of a simple design can be formed without problems.

  FIG. 4 is referred to describe other forms of the vent holes 22, 23, 24 of the vent hole 21 provided in the surface member 20 of the floor blowing air conditioning free access floor according to the second embodiment. It is a figure to do.

  In FIG. 4 (a), the surface member 20 has a circular hole-shaped front side hole portion that is formed with its upper end opening on the surface 20a side of the surface member 20 and extending in the thickness direction of the surface member 20. 22a, and the lower end portion of the front surface member 20 is open to the back surface 20b side, and is formed to extend in the thickness direction of the front surface member 20. Between the lower end portion of the front side hole portion 22a and the upper end portion of the back side hole portion 22b, the diameter is gradually increased from the inner peripheral surface of the front side hole portion 22a toward the inner peripheral surface of the back side hole portion 22b. A vent 22 composed of a tapered portion 22c is formed.

  In FIG. 4B, the surface member 20 has a circular hole-like front side hole portion whose upper end portion is open on the surface 20 a side of the surface member 20 and is extended in the thickness direction of the surface member 20. A vent hole 23 is formed which includes 23a and a tapered portion 23b formed by gradually increasing the diameter from the lower end portion of the front hole portion 22a toward the back surface 20b of the front surface member 20.

  4C, the upper end portion of the surface member 20 is opened on the surface 20a side of the surface member 20, and the diameter is gradually increased from the opening portion toward the back surface 20b of the surface member 20. A tapered vent hole 24 is formed.

  As shown in FIG. 4, the ventilation holes 22, 23, and 24 in these three forms are the same as the ventilation holes 21 in the surface member 20 according to the second embodiment, as shown in FIG. The diameter of the opening on the side is formed larger than the diameter of the opening on the surface 20a side.

  And the ventilation hole 22,23,24 has the diameter of about 0.2-1.2 mm in the opening part by the side of the surface 20a similarly to the ventilation hole 21 in the surface member 20 which concerns on the said 2nd Embodiment. It is formed to be a circular hole.

  Even in the case of the surface member 20 provided with such ventilation holes 22, 23, 24, it is difficult to supply air from the underfloor space to the living room, similarly to the surface member 20 according to the second embodiment. It is possible to prevent the pattern from being formed, and various designs and patterns can be formed on the surface without any problem.

  Further, similarly to the surface member 20 according to the second embodiment, more air is efficiently transferred from the underfloor space 4b of the room 4 to the living room 4c as compared with the surface member 16 according to the first embodiment. It is possible to improve the workability when forming the ventilation holes.

  FIGS. 5 and 6 are views referred to for explaining the surface member 18 of the floor access air conditioning free access floor according to the third embodiment of the present invention.

  As shown in FIGS. 5A and 6A, the surface member 18 of the floor blowing air conditioning free access floor according to the present embodiment has a predetermined thickness, and the planar shape is an elongated plate shape. In addition to being formed, the surface 18a is formed flat.

  The surface member 18 according to the present embodiment is used for a flooring board in which a flooring floor is formed by laying a plurality of surface members 18 side by side, and is constituted by, for example, a wooden board or a plywood board.

  A short side portion of the surface member 18 formed in an elongated plate shape, that is, one end surface of both end portions in the length direction of the surface member 18, as shown in the left side of FIG. Is formed so as to protrude from the end face toward the outside (left side in the figure) in the length direction (left and right direction in the figure) of the surface member 18.

  Then, the other end surface of the both end portions in the length direction of the surface member 18, that is, the end surface opposite to the length direction (the right side in FIG. 6A) with respect to the end surface on which the fitting convex portion 18c is formed. Is formed so that a fitting groove 18d having a U-shaped cross section is recessed from the end surface thereof toward the inside (left side in the figure) in the length direction (left and right direction in the figure) of the surface member 18. .

  As shown in FIG. 6A, the fitting convex portion 18c and the fitting groove 18d are formed in such shapes and dimensions that the respective cross-sectional shapes are fitted to each other, and each of them is the length of the surface member 18. From the end on the near side in the width direction (perpendicular to the paper surface of FIG. 6A) perpendicular to the length direction of the surface member 18 (left-right direction in the figure) at the end surfaces of both end portions in the vertical direction, It is formed continuously up to the end.

  Further, as shown in FIG. 6 (b), the long side portion of the surface member 18, that is, each long side portion where both ends in the width direction (left and right direction in the drawing) of the surface member 18 are continuous, Overhanging portions projecting so that the thickness portions on the surface 18a side in the thickness direction (vertical direction in the drawing) of the surface member 18 on both end faces protrude toward the outside in the width direction of the surface member 18 18e is formed.

  As shown in FIG. 5 (b), the overhanging portion 18 e has one side in the length direction of the surface member 18 at each side portion where both end portions in the width direction of the surface member 18 are continuous in the length direction. It is formed continuously from one end to the other end.

  Further, as shown in FIG. 6B, the corners of the cross section on the surface 18a side of the overhanging portions 18e at both ends in the width direction of the surface member 18 are chamfered by chamfering the corner portions. The chamfered portion 18i in which is formed is continuously formed from one end portion in the length direction of the surface member 18 to the other end portion.

  Further, as shown in FIGS. 5B and 6A, a plurality of back surface grooves 18f extending in the width direction of the surface member 18 are formed on the back surface 18b of the surface member 18, and the plurality of back surface grooves 18f are formed. Are formed in parallel with each other at a predetermined interval in the length direction of the surface member 18.

  As shown in FIG. 6A, the back surface groove 18f is formed so that the cross-sectional shape is recessed in a reverse U-shaped groove shape from the back surface 18b of the front surface member 18 to the front surface 18a. As shown, it is formed continuously from one end to the other end in the width direction of the back surface 18 b of the front surface member 18.

  Further, as shown in FIGS. 5B and 6B, five back surface recesses 18 g (second back surface recesses) extending in the length direction of the surface member 18 are formed on the back surface 18 b of the surface member 18. The five back surface recesses 18g are formed in parallel with each other at a predetermined interval in the width direction of the surface member 18.

  As shown in FIGS. 5 (b) and 6 (b), the back surface recess 18g is formed in a recessed portion having a shallow depth and slightly recessed from the back surface 18b of the surface member 18, and the back surface recess 18g The dimension in the width direction is formed larger than the back surface groove 18f, and the dimension in the depth direction is formed smaller than the back surface groove 18f.

  As shown in FIG. 5B, such a back surface concave portion 18 g is formed on the back surface 18 b of the front surface member 18 so as to extend in the length direction of the front surface member 18 at a position in the length direction of the front surface member 18. The back surface recess 18g is configured to be orthogonal to the plurality of back surface grooves 18f.

  And in the part which this back surface recessed part 18g and the back surface groove | channel 18f cross | intersect, each internal space formed in the back surface recessed part 18g and the back surface groove | channel 18f is comprised so that it may communicate.

  Further, of the overhanging portions 18e formed on the long side portions on both sides of the surface member 18, one overhanging portion 18e on both sides is shown in FIGS. 5 (b) and 6 (b). As described above, a side opening 18 h is formed such that a portion in the middle of the protruding portion 18 e in the length direction is recessed toward the inside in the width direction of the surface member 18.

  The side opening 18h is directed toward the inner side in the width direction of the surface member 18 so that the protruding portion 18e is continuously cut out from the upper end to the lower end in the height direction (thickness direction of the surface member 18). It is formed to be recessed.

  Further, as shown in FIG. 5B, the side opening 18 h has both ends in the length direction of the side opening 18 h in the overhanging portion 18 e in the length direction of the back surface recess 18 g in the back surface 18 b of the surface member 18. Are formed so as to be substantially in the same position in the length direction of the surface member 18.

  Thereby, the space in the back surface groove 18 f that communicates with the space in the back surface recess 18 g is configured to communicate with the space in the side opening 18 h at the end in the width direction of the surface member 18.

  And as shown in FIG.5 (b), as mentioned above, the back surface recessed part 18g which was formed in the back surface 18b of the surface member 18 along with the width direction, and was formed in parallel with each other, and these back surface recessed parts 18g, A plurality of structures including side opening portions 18 h formed at substantially the same length are formed at predetermined intervals in the length direction of the surface member 18.

  The projecting portions 18e are formed so as to project, for example, about 1 mm from both end surfaces in the width direction of the surface member 18 toward the outer side in the width direction of the surface member 18 from the end surfaces where the projecting portions 18e are not formed. The side opening 18h is formed at each end in the width direction of the surface member 18 from the protruding surface outside the protruding portion 18e in the width direction of the surface member 18 toward the inside in the width direction of the surface member 18. For example, it is recessed by about 0.5 mm.

  In such a surface member 18 according to the present embodiment, a plurality of surface members 18 are arranged side by side in the horizontal direction without any gaps by bringing the opposing sides of the adjacent surface members 18 into contact with each other. It can be laid on the living room floor 9 of the room 4 in which the floor blowing air conditioning system 2 as shown in FIG. 7 is installed.

  At this time, the fitting protrusions 18 c provided on the surface member 18 are fitted into fitting grooves 18 d provided on another surface member 18 adjacent in the length direction of the surface member 18, thereby providing a plurality of surfaces. The members 18 can be arranged side by side without any gap in the length direction.

  In addition, the protruding portion 18e formed on the surface member 18 is adjacent to the protruding portion 18e provided on another surface member 18 adjacent in the width direction of the surface member 18, so that the adjacent surface members 18 are adjacent to each other. The chamfered portions 18i chamfered on the overhanging portion 18e are opposed to each other so that a V-shaped joint of the flooring is formed.

  Since the side opening 18h of the surface member 18 is formed in the overhanging portion 18e of the long side portion of the surface member 18, when the surface member 18 is arranged in the width direction, the side opening of the surface member 18 is The portion 18h is configured to appear to form a part of the joint of the flooring between the protruding portion 18e of the adjacent surface member 18.

  Of the ventilation holes 8a formed in the floor panel 8 constituting the room floor 9 of the room 4 and the back surface grooves 18f and the back surface recesses 18g formed in the surface member 18 disposed on the floor panel 8, The opening on the back surface 18b side of the surface member 18 communicates with the back surface groove 18f and the back surface recess 18g where the whole or part of the respective cross-sectional areas of the opening portion of the ventilation hole 8a of the floor panel 8 overlap.

  As a result, a ventilation path is formed which communicates from the underfloor space 4b of the room 4 to the living room 4c through the ventilation hole 8a of the floor panel 8 and from the back surface recess 18g and the back surface groove 18f through the side opening 18h. It is configured as follows.

  Thereby, the air supplied to the underfloor space 4b from the air conditioner 10 of the room 4 in which the floor blowing air conditioning system 2 is installed is configured to be supplied to the living room 4c through the ventilation path.

  Further, in the surface member 18 according to the present embodiment, the back surface groove 18f formed in the surface member 18 communicates with the back surface recess 18g having a width wider than the back surface groove 18f, so that the spaces communicate with each other. When the area of the opening on the back surface 18b side is increased and the surface member 18 is disposed on the floor panel 8, the ventilation holes 8a of the floor panel 8 are not easily blocked by the surface member 18.

  Since more back surface grooves 18f can communicate with more ventilation holes 8a formed in the floor panel 8, more air is efficiently supplied from the underfloor space 4b of the room 4 to the living room 4c. be able to.

  Further, the side opening 18h, which is the opening on the surface 18a side of the surface member 18, is formed at the joint portion of the V-shaped grooved flooring formed when the surface members 18 are arranged side by side. Therefore, the side opening 18h can be made inconspicuous.

  According to the surface member 18 of the floor blowing air-conditioning free access floor according to the present embodiment as described above, it is possible to prevent the air from being prevented from being supplied from the underfloor space to the living room, and various surfaces can be provided on the surface. A design and pattern of a simple design can be formed without problems.

  The present invention is not limited to the first to third embodiments, and various modifications can be made as long as the object of the present invention can be achieved.

  For example, in the surface members 16 and 20 according to the first and second embodiments, the surface members 16 and 20 are formed in a laid tile shape such as a substantially square plate-shaped P tile. Any shape other than a square may be used as long as it can be arranged on the surface without a gap.

  In the surface member 18 according to the third embodiment, the five back surface recesses 18g are formed in parallel to the width direction of the back surface 18b of the surface member 18, but are formed in the surface member 18. The back surface recess 18g may be less than five or more than five.

  Further, in the surface member 18 according to the third embodiment, the side opening 18h is formed on one of the overhang portions 18e formed at both ends of the surface member 18 in the width direction. Although formed, the side opening 18h may be formed in each of the overhang portions 18e formed at both ends of the surface member 18 in the width direction.

2 floor blowing air conditioning system 4 room 4a basic floor surface 4b under floor space 4c living room 4d exhaust port 4e air supply port 6 support leg 8 floor panel 8a ventilation hole 9 living room floor 10 air conditioner 12 surface member 12a surface 14 surface member 14a surface 14b back surface 14c Fitting convex portion 14d Fitting groove 14e Overhang portion 14f Back surface groove 14g Chamfered portion 16 Surface member 16a Front surface 16b Ventilation hole 18 Surface member 18a Surface 18b Back surface 18c Fitting protrusion 18d Fitting groove 18e Overhang portion 18f Back surface Groove 18g Back surface recess 18h Side opening 18i Chamfered portion 20 Surface member 20a Surface 20b Back surface 21 Ventilation hole 21a Front side hole portion 21b Back side hole portion 22 Ventilation hole 22a Front side hole portion 22b Back side hole portion 22c Taper portion 23 Ventilation hole 23a Front side Hole 23b Taper 24 Ventilation hole

Claims (8)

A part of the second floor part is provided on a floor panel constituting a part of the second floor part provided with a space above the first floor part constituting a part of the building structure. A surface member of a free access floor,
As the surface member, one having a flat surface is used,
A part of the ventilation path through which the air sent from the floor blowing air conditioning system passes from the under-floor space below the second floor toward the room above the second floor is formed in the thickness direction of the surface member A surface member of a floor access air-conditioning free access floor, characterized by being made. The surface member of the floor access air-conditioning free access floor according to claim 1, wherein a part of the ventilation path is configured by a ventilation hole penetrating the surface member in a thickness direction thereof. The floor vent air conditioning free according to claim 2, wherein the ventilation hole is formed such that the diameter of the opening on the back side of the surface member is larger than the diameter of the opening on the surface side of the surface member. Access floor surface member. The floor according to claim 2 or 3, wherein the ventilation hole is formed so that the opening on the surface side of the surface member is a circular hole having a diameter of about 0.2 to 1.2 mm. Surface member of free access floor for blowout air conditioning. The surface member of the floor access air-conditioning free access floor according to any one of claims 2 to 4, wherein a floor tile having a planar shape formed in a substantially square shape is used as the surface member. On the back surface of the surface member, a back surface groove having a reverse U-shaped cross-section is continuously formed from one end portion to the other end portion in the width direction of the back surface,
In the side portion parallel to the length direction of the surface member, a middle portion in the length direction of the side portion is recessed toward the inside in the width direction of the surface member, and the upper end in the thickness direction of the side portion A side opening that is continuously cut from the bottom to the bottom is formed,
A part of the ventilation path is formed by the internal spaces of the back surface groove and the side opening being communicated with each other at either end of the back surface groove in the width direction of the surface member. The surface member of the floor access air-conditioning free access floor according to claim 1, wherein: A second back surface recess having a shallow depth is formed on the back surface of the front surface member,
The width dimension of the second back recess is formed larger than the width dimension of the back groove,
The second back surface recess is formed on the back surface of the surface member so as to intersect the back surface groove,
The part of the ventilation path is configured such that internal spaces of the back surface recess and the back surface groove communicate with each other at a portion where the back surface recess and the back surface groove intersect. The surface member of the free access floor for floor blowing air conditioning described in 1. The floor member having a planar shape formed into an elongated plate is used as the surface member. The surface member of a floor access air-conditioning free access floor according to claim 6 or 7.

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