JP2011208404A - Free access floor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a free access floor which can prevent a deterioration in the usability of the free access floor, which can prevent complication of a structure of the free access floor, and which can contribute to a reduction in energy consumed by an air-conditioning machine.SOLUTION: The free access floor includes a detachably provided floor panel 20, and a plurality of supporting legs 28 for supporting the floor panel 20. In the free access floor, a thermal storage material 54 is installed in a laid member 52 which is laid between the adjacent supporting legs 28. The free access floor can prevent the deterioration of the usability of the free access floor and the complication of the structure of the free access floor, and can contribute to the reduction of the energy consumed by the air-conditioning machine.

Description

  The present invention relates to a free access floor used in, for example, a floor blowing air conditioning system.

  Conventionally, in a free access floor that has a structure where a space is provided under the floor of the room, and cords of various electronic devices can be passed through the space, for example, from the floor to the floor through holes formed in the floor panel There was a floor-access air-conditioning free access floor that is structured to allow air to blow out and to perform air conditioning such as room heating and cooling.

  In addition, in such a floor blowing air conditioning free access floor, a heat storage material is installed below the floor panel, and the air blown out from the floor onto the floor is radiated by the heat of high or low temperature radiated from the heat storage material, There was a system that can be warmed or cooled (for example, see Patent Document 1).

  According to the floor access air-conditioning free access floor, high-temperature and low-temperature heat is stored in the heat storage material using inexpensive nighttime electricity, and the high- and low-temperature heat is radiated in the daytime. The air blown from under the floor can be warmed or cooled. For this reason, compared with the case where a heat storage material is not used, the energy which an air conditioner consumes when air-conditioning a room in the daytime can be reduced.

JP 2009-121735 A

  However, in the above-described conventional floor blowing air-conditioning free access floor, as shown in FIG. 1 of Patent Document 1, below the floor panel, on the suspension shaft 18 passed between the upper ends of the support columns 17, A heat storage member support 15 is provided on which the plate-shaped heat storage member 10 is suspended.

  For this reason, when it is desired to pass cords of various electronic devices through the space below the floor panel, it is not possible to simply remove the floor panel, but the above-described column portion 17, hanging shaft 18, plate-like heat storage member 10. It is necessary to move the heat storage member support 15 having the above to another place once. For this reason, there was a problem that the usability of the free access floor deteriorated remarkably.

  In addition, the above-described conventional floor blowing air-conditioning free access floor is provided with the heat storage member support 15 having the support column 17, the suspension shaft 18, the plate-shaped heat storage member 10 and the like as described above. There was a problem that the structure of the access floor was complicated.

  Therefore, in view of the above problems, the present invention can prevent the usability of the free access floor from deteriorating, can prevent the structure of the free access floor from becoming complicated, and is consumed by the air conditioner. It is an object to provide a free access floor that can contribute to reducing energy.

In order to solve the above problems, the free access floor according to the present invention is:
In a free access floor having a floor panel that is detachably provided and a plurality of support legs that support the floor panel, a heat storage material is installed on a spanning member that spans between adjacent support legs. It is what.

The free access floor according to the present invention is
The heat storage material is installed such that either the vertical direction or the horizontal direction is the longitudinal direction.

The free access floor according to the present invention is
The spanning member on which the heat storage material is installed is spanned only between the support legs at specific locations in a room where a free access floor is laid.

According to such a free access floor of the present invention,
In a free access floor having a floor panel detachably provided and a plurality of support legs that support the floor panel, by installing a heat storage material on a spanning member spanned between adjacent support legs,
The convenience of the free access floor can be prevented from deteriorating, the structure of the free access floor can be prevented from becoming complicated, and the energy consumed by the air conditioner can be reduced.

It is sectional drawing which shows the room 30 which installed the free access floor 50 which concerns on the 1st Embodiment of this invention. It is the top view which shows the floor panel 20 in FIG. It is a bottom view of the floor panel 20 shown in FIG. It is a BB arrow directional cross-sectional view of the floor panel 20 shown in FIG. It is side surface sectional drawing which shows the free access floor 50 in FIG. It is AA arrow sectional drawing of the room 30 shown in FIG. It is a top view which shows the room 30 which installed the free access floor 60 which concerns on the 2nd Embodiment of this invention. It is a top view which shows the room 30 which installed the free access floor 70 which concerns on the 3rd Embodiment of this invention.

  Hereinafter, the form for implementing the free access floor which concerns on this invention is demonstrated concretely based on drawing.

  FIGS. 1 to 6 are views referred to for describing the free access floor 50 according to the first embodiment of the present invention.

  As shown in FIG. 1, the free access floor 50 according to the first embodiment of the present invention mainly includes a floor panel 20 that is arranged in a row so as to be adjacent to each other vertically and horizontally on a horizontal plane, and a support panel. The leg 28, the spanning member 52, and the heat storage material 54 are configured.

  The support legs 28 erected on the concrete surface 24 are structured to support the four corners of the floor panel 20 whose planar shape is substantially square from below, and the floor portion of the room 30 Is laid.

  Due to the floor panel 20 and the support legs 28, the room 30 has an underfloor space 30a on the lower side of the floor panel 20, and cords of various electronic devices can be passed through the underfloor space 30a. It has a structure that can be done.

  In the room 30, an air supply port 30c is formed on the wall surface of the underfloor space 30a, and an exhaust port 30d is formed above the wall surface of the above-floor space 30b. The air supply port 30c and the exhaust port 30d of the room 30 communicate with an air conditioner 31 installed outside the room 30 via an air duct (not shown). The air whose temperature is adjusted by the air conditioner 31 is supplied into the underfloor space 30a from the air supply port 30c.

  The floor panel 20 is formed with a number of through holes 20a through which air passes from the lower floor space 30a below to the upper floor space 30b. Further, on the floor panel 20, a plurality of tile carpets 32 in which air holes 32a for allowing air to pass from below to above are formed are arranged so as to be adjacent to each other vertically and horizontally on a horizontal plane.

  For this reason, the free access floor 50 passes through the through holes 20a formed in the floor panel 20 and the ventilation holes 32a formed in the tile carpet 32, and air blows out from the under floor space 30a to the above floor space 30b. It has a structure of a floor blowing air conditioning system that can perform air conditioning such as heating and cooling of the (floor space 30b).

  As shown in FIG. 4, the floor panel 20 includes a flat top sheet 34 and a bottom sheet 36 in which a box-shaped reinforcing portion 38 is formed inside the outer peripheral portion. Both the top sheet 34 and the bottom sheet 36 are formed using a steel plate material.

  As shown in FIG. 2, the top sheet 34 of the floor panel 20 has a substantially square planar shape and is formed in a flat plate shape having a certain thickness. The top sheet 34 is formed with a number of long through holes 34a penetrating in the thickness direction.

  As shown in FIGS. 3 and 4, the bottom sheet 36 of the floor panel 20 is located on the center side of the bottom surface 38 a of the reinforcing portion 38 from the bottom surface 38 a in order to improve the strength of the bottom sheet 36. A stepped surface 38b having a depth is formed on the sheet 34 side, and reinforcing stepped portions 40 that are recessed toward the topsheet 34 are formed on the stepped surface 38b.

  As shown in FIG. 4, the reinforcing shape portion 40 is formed to be recessed in a substantially hemispherical shape by press drawing. Further, the reinforcing shape portion 40 is formed with a flat portion 42 (bottom portion) at the innermost portion recessed toward the top sheet 34, and the spherical portion around the flat portion 42 is flat as shown in FIG. Six elliptical through-holes 40a surrounding the portion 42 and having a long axis in the radial direction are formed.

  Therefore, both the long hole-like through hole 34a formed in the top sheet 34 of the floor panel 20 and the through hole 40a of the spherical portion of the reinforcing shape portion 40 of the bottom sheet 36 are displayed on the floor panel 20 in FIG. The formed through hole 20a is configured.

  The floor panel 20 shown in FIG. 3 is a view showing a state of the floor panel 20 shown in FIG. 4 as viewed from the lower side in the figure, and the reinforcing shape formed in many places in the floor panel 20 shown in FIG. The opening diameter of each of the portions 40 is the largest on the stepped surface 38b of the bottom sheet 36 on the back surface side of the floor panel 20, and becomes smaller toward the top sheet 34 side (upper side in FIG. 4).

  As shown in FIG. 4, the bottom sheet 36 has a flange portion 38 c formed on the outer peripheral portion thereof and a flat portion 42 at the tip of the reinforcing shape portion 40 abuts against the top sheet 34. They are joined by welding. For this reason, the floor panel 20 has a hollow shape having a space inside the top sheet 34 and the bottom sheet 36. Further, the floor panel 20 can be freely attached and detached from the support leg 28.

  As shown in FIG. 5, the support leg 28 of the free access floor 50 includes a panel adjustment base 28 a that supports the floor panel 20, and a leg portion 28 b that is coupled on the same lower axis.

  As shown in FIG. 6, the support legs 28 are arranged on the concrete surface 24 of the room 30 whose horizontal shape is substantially square, and vertically and horizontally spaced apart from each other on the horizontal plane over the entire under-floor space 30 a of the room 30. A plurality of them are arranged.

  As shown in FIG. 5, the panel adjustment base 28 a that supports the corner of the floor panel 20 at the upper end of the support leg 28 and the panel at the upper end of the other support leg 28 that also supports the corner of the floor panel 20. Between the adjustment stand 28a, both ends of the spanning member 52 are spanned and installed.

  As shown in FIGS. 5 and 6, the spanning member 52 is formed in a substantially rectangular plate shape, and in a state where the longitudinal direction thereof is substantially parallel (horizontally) to the concrete surface 24, It is disposed near the lower side of the bottom surface 38a.

  Then, both ends in the longitudinal direction of the spanning member 52 are spanned between the panel adjustment bases 28a of the two support legs 28 that support the four corners of the floor panel 20 located at the top via a stepped uneven shape or the like. It has a structure like this. For this reason, the spanning member 52 is spanned between the panel adjustment bases 28 a of the two support legs 28.

  Therefore, as shown in FIG. 6, the spanning member 52 includes an arbitrary support leg 28 and other support legs located in the vertical and horizontal directions of the support leg 28 in the figure over the entire underfloor space 30 a of the room 30. It is spanned between 28 panel adjustment stands 28a.

  As shown in FIG. 6, the spanning member 52 is spaced on the side surface (vertical plane perpendicular to the paper surface in the drawing) in the width direction perpendicular to the longitudinal direction in the longitudinal direction of the spanning member 52. The four heat storage materials 54 are arranged, and the upper end portion is fixed to the transfer member 52.

  Here, for the heat storage material 54, for example, a paraffin-based latent heat storage material can be used. This paraffin-based latent heat storage material can take various forms such as gels, emulsions, beads, slurries, and silica-coated products.

  For example, in the heat storage material 54, a gel-like mode is selected, and the gel-like latent heat storage material is filled therein. Can be used.

  A plastic packaging bag filled with such a heat storage material 54 and formed into a plate shape is suspended so that its longitudinal direction is substantially perpendicular to the concrete surface 24 as shown in FIG. At the upper end portion in the longitudinal direction, it can be fixed to one surface of the spanning member 52 that is substantially perpendicular to the concrete surface 24 using a string, an adhesive, or the like.

  As shown in FIG. 5, the four plastic packaging bags filled with the heat storage material 54 are arranged at intervals in the longitudinal direction of the spanning member 52.

  As a result, the heat storage material 54 can be integrally provided on the spanning member 52 spanned between the support leg 28 and the other support leg 28. For this reason, since the spanning member 52 is spanned between the plurality of support legs 28, the heat storage material 54 can be installed on the two support legs 28 via the spanning member 52.

  Accordingly, when the air passes from the lower side to the upper side of the floor panel 20, the air contacts the heat storage material 54, and therefore passes through the vicinity of the heat storage material 54 due to the high or low temperature heat radiated from the heat storage material 54. The air can be warmed or cooled. For this reason, the energy consumed by the air conditioner 31 can be reduced accordingly.

  Moreover, since the spanning member 52 and the heat storage material 54 are arranged over the entire underfloor space 30a of the room 30, the entire air in the underfloor space 30a can be heated or cooled.

Further, since the heat storage material 54 is provided near the lower side of the bottom surface 38 of the floor panel 20,
The air passing from the lower side to the upper side of the floor panel 20 can be warmed or cooled more efficiently.

  In addition, since the existing floor panel 20 and the support leg 28 can be used, it is only necessary to newly provide a spanning member 52 and a heat storage material 54, which is different from the conventional support leg 28. Since a structure in which the heat storage material 54 is provided on the bar member horizontally applied to the column member is not necessary, it is possible to prevent the structure of the free access floor 50 from becoming complicated.

  As described above, according to the free access floor 50 according to the first embodiment of the present invention, the usability of the free access floor 50 can be prevented from being deteriorated, and the structure of the free access floor 50 is improved. It can be prevented from becoming complicated, and can contribute to reducing the energy consumed by the air conditioner 31.

  FIG. 7 is a diagram referred to for describing the free access floor 60 according to the second embodiment of the present invention.

  In the free access floor 50 according to the first embodiment, the spanning member 52 is spanned between the adjacent support legs 28 over the entire under-floor space 30a of the room 30. In the free access floor 60 according to the second embodiment, as shown in FIG. 7, the transfer member 62 is a heat storage area 66 (in the drawing) formed in a part of the underfloor space 30 a of the room 30. It is designed to be spanned between the support legs 28 in a range surrounded by a broken line) and is not spanned between the support legs 28 in a range other than the heat storage area 66. It is.

  That is, in the free access floor 60 according to the second embodiment, as shown in FIG. 7, a heat storage area 66 surrounding the vicinity of the air supply port 30 c (lower right side in the drawing) formed in the room 30. The spanning member 62 is spanned only on the support leg 28 within the range of the above, and the heat storage material 64 is installed only on the spanning member 62 spanned over the support leg 28 within the range. It has come to be.

  For this reason, in the range other than the heat storage area 66 of the room 30, when a cord of an electronic device is newly passed through the underfloor space 30 a, it is possible to work by simply removing the detachable floor panel 20. Therefore, the efficiency of wiring work is not different from the conventional one. For this reason, it is possible to prevent the usability of the free access floor 60 from deteriorating.

  In addition, the air from the underfloor space 30a toward the above-floor space 30b always passes through the vicinity of the air supply port 30c before that. Therefore, the air passing through the floor panel 20 is surely warmed or cooled by the high or low temperature heat radiated from the heat storage material 64 provided in the vicinity of the air supply port 30c of the room 30. Can do.

  According to the free access floor 60 according to the second embodiment of the present invention, when the air passes from the lower side to the upper side of the floor panel 20, the air contacts the heat storage material 64. The air passing through the floor panel 20 can be heated or cooled by the high-temperature or low-temperature heat radiated from the 64. For this reason, the energy consumed by the air conditioner 31 can be reduced accordingly.

  Moreover, according to the free access floor 60 which concerns on the 2nd Embodiment of this invention, it can also prevent that the usability of the free access floor 60 deteriorates.

  FIG. 8 is a diagram referred to for explaining a free access floor 70 according to the third embodiment of the present invention.

  In the free access floors 50 and 60 according to the first and second embodiments, the heat storage materials 54 and 64 are fixed to one spanning member 52 and 62 at one end in the longitudinal direction so as to hang down. In contrast, in the free access floor 70 according to the third embodiment, both ends of the heat storage material 74 are fixed to the plurality of spanning members 72 and are arranged in the horizontal direction. It has become.

  That is, in the free access floor 70 according to the third embodiment, the spanning member 72 is under the floor of the room 30 like the spanning member 52 of the free access floor 50 according to the first embodiment. The space 30a is spanned between the support legs 28.

  And the heat storage material 74 is formed in the substantially rectangular plate shape, as shown in FIG. The heat storage material 74 is disposed in a substantially parallel direction (horizontal direction) with the wall surface on which the air supply port 30c is formed, and is disposed with a horizontal interval between the spanning members 72 facing each other. Both ends in the longitudinal direction are fixed to the plurality of spanning members 72, respectively.

  For this reason, since the heat storage material 74 can be formed to a length similar to the distance between the spanning members 72 facing each other, compared to the heat storage material 54 in the free access floor 50 of the first embodiment. The area also increases as the length increases. The larger the area of the heat storage material 74, the more effectively the heat storage material 74 and the air come into contact with each other, and the heat storage material 74 can store and release heat greatly, so that the air passing through the floor panel 20 is stored in the heat storage material 74. The heat can be efficiently warmed or cooled by high-temperature or low-temperature heat radiated from the heat.

  According to the free access floor 70 according to the third embodiment of the present invention as described above, when air passes upward from below the floor panel 20, the air contacts the heat storage material 74 over a large area. The air passing through the floor panel 20 can be warmed or cooled by the high-temperature or low-temperature heat radiated from the heat storage material 74. For this reason, the energy consumed by the air conditioner 31 can be reduced accordingly.

  Further, since the existing floor panel 20 and the support leg 28 can be used, it is only necessary to newly provide the spanning member 72 and the heat storage material 74, and the conventional support panel 28 is different from the support leg 28 as in the prior art. Since a structure in which the heat storage material 74 is provided on the bar member horizontally applied to the column member is not necessary, it is possible to prevent the structure of the free access floor 70 from becoming complicated.

  In the free access floor 50 and the like according to the first to third embodiments, the top sheet 34 and the bottom sheet 36 of the floor panel 20 are both formed using a steel plate material. These members need not be limited to such materials, and may be formed using other materials.

  Further, the shape of the floor panel is not necessarily limited to the shape of the floor panel 20 in the free access floor 50 or the like according to the first to third embodiments, and may be formed in other shapes.

  Further, in the free access floor 50 and the like according to the first to third embodiments, the floor panel 20 is joined to the top sheet 34 and the bottom sheet 36 by welding. It is not necessary to be limited to the above, and it may be joined by other joining means.

  In addition, in the free access floor 50 and the like according to the first to third embodiments, the floor panel 20 is a combination of the top sheet 34 and the bottom sheet 36 which are separate members. It may be formed as a single member from the beginning.

  Further, in the free access floor 50 and the like according to the first to third embodiments, the floor panel 20 has a space formed therein, but the floor panel 20 has a space therein. It may be formed in a solid state.

  Further, in the free access floor 50 and the like according to the first to third embodiments, the spanning member 52 and the like are spanned between the panel adjustment bases 28a at the upper end portion of the support leg 28. However, the support leg 28 may be fixed to the peripheral surface of the leg part 28b at the lower end part.

  Further, in the free access floor 50 and the like according to the first to third embodiments, the spanning member 52 and the like are spanned between the support legs 28 arranged horizontally and vertically on the horizontal plane. Further, it may be spanned between the support legs 28 only in one of the vertical direction and the lateral direction, or it may be spanned between the support legs 28 arranged in an oblique direction.

  Further, in the free access floor 50 and the like according to the first to third embodiments, the spanning member 52 and the like are spanned between the support legs 28 later. When reinforcing members for supporting legs such as stringers are already installed, they may be used as the spanning members.

  Further, in the free access floor 60 according to the second embodiment, the heat storage area 66 surrounds the vicinity of the air supply port 30c of the room 30; The member 62 and the heat storage material 64 should just be provided. For example, the heat storage area 66 may be set only in the vicinity of all the wall surfaces surrounding the room 30 so as to be spanned between the support legs 28 in the vicinity of the wall surfaces.

  Further, in the free access floor 70 according to the third embodiment, the spanning member 72 and the heat storage material 74 are provided over the entire under-floor space 30a of the room 30, but the second embodiment. Similarly to the spanning member 62 and the heat storage material 64 of the free access floor 60 according to the present invention, it may be provided so as to surround the vicinity of the air supply port 30 c of the room 30, or hung on a part of the room 30 in the room. The transfer member 72 and the heat storage material 74 may be provided.

  Further, in the free access floor 70 according to the third embodiment, the heat storage material 74 is disposed so that the wall surface in which the air supply port 30c is formed and the longitudinal direction thereof are substantially parallel (horizontal direction) and face each other. Although arranged at intervals in the horizontal direction between the spanning members 72, both ends in the longitudinal direction are fixed to the respective spanning members 72, but are fixed to the plural spanning members 72. As long as they are configured, it does not have to be arranged in one direction in the room 30.

  Moreover, in the free access floor 50 etc. which concern on the said 1st-3rd embodiment, what filled the plastic packaging bag with the paraffin type latent heat storage material of the gel-like aspect was used as the heat storage material 54 grade | etc.,. However, the paraffin-based latent heat storage material does not have to be limited to a gel-like form, and other forms of latent heat storage material can be used.

  Moreover, in the free access floor 50 etc. which concern on the said 1st to 3rd embodiment, although the thermal storage material 54 grade | etc., Was formed in plate shape with the packaging bag, it does not need to be limited to this shape. Further, the surface shape, the number of attachments, and the attachment positions need not be limited to these embodiments.

  Moreover, in the free access floor 50 etc. which concern on the said 1st to 3rd embodiment, although the thermal storage material 54 grade | etc., Covered all the outer surfaces with the packaging bag, it covers that part. It does not have to be covered with a packaging bag.

  Further, in the free access floor according to the above embodiment, the method of blowing air from the lower side of the floor panel to the upper side has been described. However, the present invention is applied to the method of blowing air from the upper side of the floor panel to the lower side. You may apply.

DESCRIPTION OF SYMBOLS 20 Floor panel 20a Through-hole 24 Concrete surface 28 Support leg 28a Panel adjustment stand 28b Leg part 30 Room 30a Under-floor space 30b Above-floor space 30c Air supply port 30d Exhaust port 31 Air conditioner 32 Tile carpet 32a Vent hole 34 Top sheet 34a Through-hole 36 Bottom sheet 38 Reinforcing portion 38a Bottom surface 38b Stepped surface 38c Flange portion 40 Reinforced shape portion 40a Through hole 42 Flat portion 50 Free access floor 52 Hanging member 54 Heat storage material 60 Free access floor 62 Hanging member 64 Heat storage material 70 Free access floor 72 Spacing member 74 Heat storage material

Claims (3)

  In a free access floor having a floor panel that is detachably provided and a plurality of support legs that support the floor panel, a heat storage material is installed on a spanning member that spans between adjacent support legs. Free access floor.   The free access floor according to claim 1, wherein the heat storage material is installed such that one of a vertical direction and a horizontal direction is a longitudinal direction.   The free access floor according to claim 1 or 2, wherein the transfer member on which the heat storage material is installed is extended only between the support legs at a specific location in a room where the free access floor is laid.

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