JP4295705B2 - Double floor - Google Patents

Description

  The present invention relates to a double floor constructed on a floor slab.

  Conventionally, a double floor called a free access floor is known (see, for example, Patent Document 1).

  This double floor is configured to include a plurality of support legs erected on a floor slab and a plurality of floor panels arranged vertically and horizontally.

Japanese Patent Application No. 2004-1000075 (FIG. 4)

  Since this double floor is configured to support each of the four corners of each floor panel with a bundle, the number of bundles increases in proportion to the number of floor panels. Further, in this double floor, in order to make the floor surface (that is, the upper surface of each floor panel) horizontal, it is necessary to make the heights of all of the enormous number of bundles. That is, in the conventional double floor, although the structure is simple, after all, the installation work and the height adjustment work require a lot of labor and time. In addition, since each floor panel is supported only at its four corners, there is a problem that large deflection occurs when a heavy object is placed in the center.

  Then, this invention makes it a subject to provide the double floor which can be constructed | assembled simply and rapidly, and is hard to generate | occur | produce a distortion and bending even if a heavy article is installed.

  The double floor of the present invention capable of solving such a problem includes a plurality of support leg structures arranged side by side on a floor slab, and a plurality of floors constructed between the adjacent support leg structures. Each supporting leg structure is interposed between a beam member on which an end of each floor panel is placed, and the beam member and the floor slab. It comprises at least three bundles.

  In short, this double floor supports a plurality of floor panels via beams supported by three or more bundles. If the beams are installed horizontally, the upper surface of each floor panel is However, in order to level the beam, it is only necessary to adjust the height of any two bundles regardless of the number of bundles. It is only necessary to adjust the height following the two bundles (ie, based on the horizontal beam). That is, according to the double floor according to the present invention using a support leg structure in which three or more bundle members are connected by beam members, even if the number of bundle members is enormous, these heights As a result, it is possible to easily and quickly construct a double floor. Moreover, since each floor panel is configured to be supported by beam members, it is not necessary to arrange the bundle members at the four corners of the floor panel. Therefore, the number of bundle members can be reduced as compared with the conventional case. Furthermore, each floor panel is supported by beam members on two opposite sides, so that the deflection generated in the center portion is smaller than that of a conventional double floor floor panel in which only four corners are supported. That is, this double floor is unlikely to be distorted or bent even when a heavy object is installed on the upper surface thereof.

  Further, in the double floor according to the present invention, each of the support leg structures includes a plurality of support leg units arranged in the longitudinal direction, and each of the support leg units includes the beam. A beam component that is part of the material, the bundle attached to one end of the beam component, and at least one bundle attached to an intermediate portion of the beam component, The other end of the beam constituent member may be supported by the bundle member of another adjacent support leg unit.

  According to this double floor, since the support leg structure is constituted by a plurality of support leg units arranged in the longitudinal direction, even if the support leg structure is long, it can be divided and transported, Furthermore, handling at the construction site becomes easy. In addition, when the upper surface of the existing support leg unit installed on the floor slab (the upper surface of the beam component) is leveled and a support leg unit adjacent to it is installed, the upper surface of the support leg unit can be easily and quickly It becomes possible to make it horizontal. In other words, this double floor is configured such that the other end of the beam constituent material of each support leg unit is supported by the bundle material on one end side of another adjacent support leg unit. If the support leg unit is placed horizontally, the upper surface of the beam component can be leveled by simply adjusting the height of one of the bundles, and the rest About a bundle material, height can be adjusted on the basis of the horizontal beam component.

  In addition, in the double floor which concerns on this invention, each said support leg structure may be provided with the brace material which connects two said bundle materials adjacent to the longitudinal direction of the said beam material.

  If it does in this way, since the rigidity of each support leg structure improves, it becomes possible to provide the double floor which exhibits strong resistance to the shake resulting from an earthquake etc.

  Further, the double floor according to the present invention may be one in which two adjacent support leg structures are connected to each other.

  If it does in this way, since two adjacent support leg structures will be united, it will become possible to provide the double floor which exhibits strong resistance to the shake resulting from an earthquake etc.

  Furthermore, the double floor according to the present invention further includes a pressing member arranged along the support leg structure, and the side ends of the plurality of floor panels are fixed to the beam member by the pressing member. It may be what has been done.

  If it does in this way, since the side edge part of the several floor panel continuously arranged in the longitudinal direction of the beam material will be fixed collectively by the pressing member, installation work of a floor panel can be performed simply and quickly. It becomes possible.

  Further, in the double floor according to the present invention, side end portions of the left and right floor panels adjacent to each other with the support leg structure interposed therebetween may be fixed to the beam member by the pressing member. Good.

  If it does in this way, since the right and left floor panels which oppose on both sides of a support leg structure can be fixed simultaneously with one press member, it becomes possible to perform installation work of a floor panel simply and quickly.

  Furthermore, in the double floor according to the present invention, each floor panel includes a panel main body and a fixing member attached to an end portion of the panel main body. An overhang portion is formed to protrude from the side end surface of the panel body to the side, and the overhang portion is pressed downward by the presser member, and the upper surface of the presser member is It may be flush with the upper surface.

  If it does in this way, since the whole floor surface of a double floor will become flat, it will become possible to install an apparatus etc. freely in the arbitrary positions of the upper surface.

  According to the double floor according to the present invention, it is possible to perform the construction work easily and quickly, and even if a heavy object is installed, it is difficult for distortion and bending to occur.

  Hereinafter, the best mode for carrying out the present invention will be described in detail with reference to the accompanying drawings.

  As shown in FIG. 1, the double floor according to the present embodiment includes a plurality of rows of supporting leg structures L, L,... Arranged on the floor slab S and the adjacent supporting leg structures L, L. Are provided with a plurality of floor panels P, P,... In this embodiment, a presser member C disposed along the support leg structure L is further provided. In addition, in the double floor which concerns on this embodiment, the adjacent support leg structures L and L are mutually connected by the some connection body J, J, ....

(Support leg structure)
As shown in FIG. 2, the support leg structure L includes a beam member 20 disposed above the floor slab S, and at least three bundle members 10 interposed between the beam member 20 and the floor slab S. In this embodiment, a plurality of sets of a pair of brace members 30, 30 for connecting a pair of bundle members 10, 10 adjacent to each other in the longitudinal direction of the beam member 20 are connected to each other. I have.

  As shown in FIG. 3, the bundle material 10 includes a base portion 11 fixed to the floor slab S, a beam placement portion 12 on which the beam material 20 is placed, and a base portion 11 and a beam placement portion 12. A column portion 13 interposed therebetween, and a lower connection portion 14 and an upper connection portion 15 to which the brace material 30 is connected are provided.

  As shown in FIG. 4, the base portion 11 includes a lower plate 111 that is fixed to the upper surface of the floor slab S, and a lower screw rod 112 that is erected at the center of the upper surface of the lower plate 111. The lower plate 111 has a rectangular shape, and insertion holes 111a, 111a,... The base portion 11 is fixed by using anchor bolts An and nuts Na that are driven into the floor slab S at positions corresponding to the respective insertion holes 111a.

  The beam placing portion 12 includes an upper plate 121 fixed to the lower surface of the beam member 20 (see FIG. 3), and an upper screw rod 122 provided vertically at the center of the lower surface of the upper plate 121. The upper plate 121 has a rectangular shape, and insertion holes 121a, 121a,...

  The column portion 13 includes a column main body 131 and nuts 132 and 132 for loosening prevention arranged above and below the column main body 131. A screw hole 131 a into which the lower screw rod 112 of the base portion 11 is screwed is formed in the lower end surface of the column main body 131, and the upper screw rod of the beam placing portion 12 is formed in the upper end surface of the column main body 131. A screw hole 131b into which 122 is screwed is formed. The column portion 13 has a so-called turnbuckle structure, and the column main body 131 is rotated in an appropriate direction to insert the lower screw rod 112 into the screw hole 131a and the upper screw rod 122 into the screw hole 131b. When the insertion amount is adjusted as appropriate, the overall height of the bundle 10 is adjusted.

  The lower connection portion 14 includes a pair of upper and lower brackets 141 and 141 disposed so as to be orthogonal to each other, and a nut 142 disposed on the upper side of the upper bracket 141. Each bracket 141 includes a rectangular base piece 141a mounted on the lower screw rod 112 of the base portion 11, an overhanging piece 141b projecting obliquely upward from one side of the base piece 141a, and the overhanging piece 141b. And a connection piece 141c that rises upward from the tip. The connection piece 141c is formed with an insertion hole 141d at the center thereof.

  The upper connection portion 15 includes a pair of upper and lower brackets 151 and 151 disposed so as to be orthogonal to each other, and a nut 152 disposed on the lower side of the lower bracket 151. Each bracket 151 includes a rectangular base piece 151a that is mounted on the upper screw rod 122 of the beam mounting portion 12, a projecting piece 151b that projects obliquely downward from one side of the base piece 151a, and a tension piece 151b. And a connecting piece 151c extending downward from the tip of the protruding piece 151b. The connection piece 151c is formed with an insertion hole 151d at the center thereof.

  In order to install the bundle 10 on the floor slab S, the base plate 11 is placed on the floor slab S, and the anchor bolts are inserted into the floor slab S from the insertion holes 111a formed at the four corners. An may be driven in and the nut Na may be screwed into a portion protruding from the lower plate 111 of the anchor bolt An. In addition, the base part 11 may be fixed on the floor slab S in a state where the members constituting the bundle 10 are integrated in advance, or alternatively, the base part 11 may be fixed on the floor slab S in a state where the base part 11 is separated from other parts. After fixing, another member may be attached to the base portion 11.

  As shown in FIG. 2, the beam member 20 includes a plurality of beam component members 20 ′, 20 ′,...

  The beam component 20 ′ is fixed to the upper surfaces of the three bundles 10, 10, and 10, as shown in FIG. 5, a hollow beam main body 21 and a lower end portion of the beam main body 21. A pair of bolt housing portions 22, 22 formed on both sides, a nut housing portion 23 formed on the inside upper portion of the beam main body portion 21, and a pair of erected facing the center of the upper surface of the beam main body portion 21. Locking portions 24, 24. The beam constituent member 20 'is made of an extruded shape made of an aluminum alloy. If the beam component 20 'is an extruded shape made of an aluminum alloy, in addition to the merit of the aluminum alloy, which is light in weight and hardly corroded, there is also the merit that it is easy to assemble or modify a double floor. I can expect. In addition, the beam constituting member 20 ′ having different lengths can be manufactured simply by cutting the extruded shape member with a predetermined length, so that the manufacturing cost can be reduced.

  The bolt accommodating portion 22 accommodates the head of the bolt B1 that is used when the beam constituting member 20 'is fixed to the bundle member 10. The bolt accommodating portion 22 is continuous in the longitudinal direction of the beam constituting member 20 ′ (the extrusion direction of the shape member; the direction perpendicular to the paper surface in FIG. 5), and the lower surface thereof is open. If it does in this way, it will become possible to move this volt | bolt B1 to the longitudinal direction of beam structural member 20 ', with the head of volt | bolt B1 accommodated in the inside of the volt | bolt accommodating part 22, Therefore Even if there is an error in the position, it can be easily handled, and even when a new bundle 10 is added after the double floor is in service, a new insertion hole is formed. It is not necessary to do so, so it can be handled easily. A protrusion 22a is formed on the inner surface of the bolt housing portion 22 to contact the head of the bolt B1 and restrict its rotation. Further, the inner width of the bolt accommodating portion 22 is equal to the short side width of the rectangular plate washer W1 that is mounted around the shaft portion of the bolt B1. Although illustration is omitted, a blade portion is formed on the lower surface of the plate washer W1 in a direction orthogonal to the longitudinal direction of the bolt housing portion 22, and when the bolt B1 is tightened, this blade portion is the bolt housing portion 22. And the movement of the bolt B1 is prevented. Moreover, although illustration is abbreviate | omitted, the opening part of the lower surface of the volt | bolt accommodating part 22 is widened in a suitable location, The head of the volt | bolt B1 and the plate washer W1 can be inserted from this widened part. Note that the head of the bolt B1 and the plate washer W1 can be inserted into the bolt housing portion 22 from the end thereof.

  The nut accommodating portion 23 accommodates a nut N2 that is used when the pressing member C is fixed to the beam component 20 '. The nut housing portion 23 is continuous in the longitudinal direction of the beam component 20 ', and its upper surface is open. If it does in this way, it will become possible to move this nut N2 to the longitudinal direction of beam constituent material 20 ', accommodating nut N2 in nut accommodation part 23 inside. The inner width of the nut accommodating portion 23 is slightly larger than the diameter of the nut N2.

  The locking portions 24, 24 are formed along the edge of the opening of the nut accommodating portion 23, and are continuous in the longitudinal direction of the beam component 20 'in a state of facing each other.

  In order to fix the beam constituent member 20 ′ to the upper surface of the bundle member 10, the beam constituent member 20 is placed on the beam mounting portion 12 of the bundle member 10 in a state where the head of the bolt B <b> 1 is accommodated in each bolt accommodating portion 22. Bolt B1 protruding below the upper plate 121 after inserting the shaft portion of the bolt B1 through the insertion hole 121a (see FIG. 4) formed in the upper plate 121 of the beam mounting portion 12. The shaft portion may be fastened with a nut N1. Note that the end of the beam component 20 ′ is placed on the front half or the rear half of the upper plate 121 of the bundle member 10 (see FIG. 3), and is fixed to the upper plate 121 by two bolts B1 each on the left and right. Is done. On the other hand, the intermediate part of the beam constituting member 20 'is placed on the entire surface of the upper plate 121 of the bundle member 10, and is fixed to the upper plate 121 by a total of four bolts B1.

  As shown in FIG. 6, the brace material 30 connects the bundle members 10 and 10 adjacent to each other in the longitudinal direction of the beam member 20, and a bar member 31 having threads formed on both ends, and the bar member. A total of four nuts 32 are provided, two at each end of 31.

  One end of the bar 31 is connected to the lower connection portion 14 of the bundle 10 and the other end is connected to the upper connection portion 15. The end of the bar 31 is an insertion hole 141d (see FIG. 4) of the connection piece 141c of the bracket 141 constituting the lower connection part 14 or an insertion hole of the connection piece 151 of the bracket 151 constituting the upper connection part 15. 151d (see FIG. 4) is inserted.

  The nuts 32 are used as a set of two, and are screwed onto the end of the bar 31 with the connection piece 141c (see FIG. 4) of the bracket 141 constituting the lower connection part 14 interposed therebetween. Similarly, it is screwed into the end portion of the bar 31 with the connection piece 151c (see FIG. 4) of the bracket 151 constituting the upper connection portion 15 interposed therebetween.

  As described above, when the bundle members 10 and 10 adjacent to each other in the longitudinal direction of the beam constituent member 20 ′ are connected to each other by the pair of brace members 30 and 30 in each support leg structure L, the rigidity of each support leg structure L is increased. Because it improves, it is possible to provide a double floor that exhibits a strong resistance to shaking caused by an earthquake or the like.

  Although not shown, the brace material 30 may have a so-called turnbuckle structure.

(Connected body)
As shown in FIG. 2, the connecting body J that connects the adjacent support leg structures L and L includes a pair of brace materials J1 and J1 that connect the bundle members 10 and 10 to each other.

  Here, since the configuration of the brace material J1 is the same as that of the brace material 30 described above, a detailed description thereof will be omitted.

  As described above, when the adjacent supporting leg structures L and L are integrated with the connecting body J (see FIG. 2), a double floor that exhibits a strong resistance to shaking caused by an earthquake or the like is provided. Is possible.

(Floor panel)
The floor panel P shown in FIG. 1 is constructed between adjacent support leg structures L, L, and as shown in FIG. 7, an extruded shape made of aluminum alloy is cut to an appropriate length. The plate-shaped panel main body P1 formed by this and the fixing member P2 attached to the edge part of this panel main body P1 are provided.

  A plurality of hollow portions P11, P11,... Are formed in the panel body P1, and the fixing member P2 is attached using the hollow portion 11.

  The fixing member P2 is a block-like member, and is formed by cutting a hollow extruded shape member with an appropriate length. The fixing member P2 includes an insertion portion P21 that is inserted into the hollow portion P11 of the panel body P1, and an overhang portion P22 that is formed at the lower end of the insertion portion P21. The insertion part P21 is formed in a shape that just fits inside the hollow part P11. Moreover, as shown to (a) of FIG. 8, the protrusion part P22 has the front-end | tip protruded below the lower surface of the insertion part P21. If it does in this way, when the insertion part P21 is inserted in the hollow part P11 of the panel main body P1, the overhang | projection part P22 will be hooked on the side end surface of the panel main body P1, and as a result, the overhang | projection part P22 will be the side end surface of the panel main body P1. It will overhang to the side.

  Each floor panel P has its end placed on the upper surface of the beam component 20 '. More specifically, the floor panel P is placed on the upper surface of the beam component 20 ′ with its overhanging portion P22 abutting against the locking portion 24 of the beam component 20 ′, and its side end surface is configured as a beam. It faces the side end face of another floor panel P placed on the material 20 'with a gap. That is, the floor panels P, P adjacent in the left-right direction (the direction perpendicular to the longitudinal direction of the beam component 20 ′) are opposed to each other with the locking portions 24, 24 of the beam component 20 ′ interposed therebetween, A gap into which the pressing member C can be inserted is formed between the end faces.

  The left and right floor panels P, P are collectively placed on the beam component 20 ′ by pressing the overhang portions P22, P22 downward simultaneously with the pressing member C as shown in FIG. 8B. Fixed. That is, each overhanging portion P22 of each floor panel P is pressed down by the pressing member C, and is thereby fixed to the upper surface of the beam component 20 '(beam material 20).

  Further, in the double floor according to the present embodiment, each floor panel P is supported by the beam component 20 '(beam material 20), so it is necessary to arrange the bundles 10 at the four corners of the floor panel P. Therefore, it is possible to reduce the number of the bundle members 10 as compared with the prior art. Furthermore, each floor panel P is supported at its opposite two sides by the beam component 20 ', so that it is bent at the center as compared with the floor panel according to the conventional double floor in which only the four corners are supported. Becomes smaller. That is, this double floor is unlikely to be distorted or bent even when a heavy object is installed on the upper surface thereof.

(Presser member)
1 is for collectively fixing a plurality of floor panels P, P,... Arranged on both sides of the support leg structure L to a beam component 20 '(see FIG. 2). It is arrange | positioned between the left and right floor panels P and P which oppose on both sides of the support leg structure L.

  The holding member C is made of an aluminum alloy extruded section having a rectangular cross section, and as shown in FIG. 10, a plurality of pieces (six in this embodiment) are continuous in the longitudinal direction of the beam component 20 ′ (see FIG. 2). ) Floor panels P, P,... Further, as shown in FIG. 11, the inside of the pressing member C is divided into two upper and lower layers by a partition wall C1, and an upper layer portion for fixing the pressing member C to the beam constituting member 20 ′. The head of the bolt B2 is accommodated. Further, an insertion hole C11 through which the head of the bolt B2 can be inserted is formed on the upper surface of the pressing member C, and the shaft portion of the bolt B2 can be inserted into the partition wall C1 and the lower surface of the pressing member C, respectively. Insertion holes C12 and C13 are formed.

  As shown in FIG. 8B, in the present embodiment, the height of the presser member C is such that when the presser member C is disposed between the floor panels P, P, the upper surface of the presser member C is the panel body P1. It is set to be flush with the top surface. If it does in this way, since the whole floor surface of a double floor will become flat, it will become possible to install an apparatus etc. freely in the arbitrary positions of the upper surface.

(How to construct a double floor)
Next, a method for constructing a double floor will be described.
To construct a double floor, as shown in FIG. 1, a plurality of support leg structures L, L,... Are erected on the floor slab S, and two adjacent support leg structures L, L are connected to each other. A plurality of floor panels P, P,... May be laid between adjacent support leg structures L, L after being connected to each other by a connecting body J to form a pair.

Here, the construction method of the support leg structure L is demonstrated in detail with reference to FIG.
In order to construct the support leg structure L, for example, the support leg unit U may be used. As shown in FIG. 9A, the support leg unit U includes a beam component 20 ′ that is a part of the beam member 20, and one end of the beam component 20 ′ (the right end in FIG. 9A). ) Attached to the boundary member 10A and an intermediate bundle member 10B attached to an intermediate portion of the beam component 20 ′, and the other end of the beam component 20 ′ is adjacent to the other member. The support leg unit U can be placed on the boundary bundle material 10A. Needless to say, the configuration of the boundary bundle 10A and the intermediate bundle 10B is the same as that of the bundle 10 shown in FIG. In the present embodiment, one support leg unit U is provided with one intermediate bundle 10B, but is provided with two or more intermediate bundles 10B. Of course.

  In order to construct the support leg structure L using this support leg unit U, a plurality of support leg units U, U,... That is, while the other end of the beam constituting member 20 ′ of the rear support leg unit U is placed on the bundle 10 A for the boundary of the front support leg unit U installed on the floor slab S, this rear stage The bundle material 10A for the boundary of the supporting leg unit U and the bundle material 10B for the intermediate may be erected on the floor slab S.

  More specifically, first, as shown in FIGS. 9A and 9B, the upper surface of the front support leg unit U (that is, the upper surface of the beam component 20 ′) is horizontal, The other end of the beam component 20 ′ of the support leg unit U is placed on the boundary bundle 10A of the front support leg unit U, and then the boundary bundle 10A is attached to the support leg unit U at the rear stage. While fixing on the floor slab S, the height of the bundle member 10A for the boundary is adjusted to make the upper surface of the beam constituent member 20 'horizontal, and then the intermediate member while keeping the upper surface of the beam constituent member 20' horizontal. When the height of the bundle member 10B is adjusted, as shown in FIG. 9C, the rear support leg unit U can be installed at the same height as the front support leg unit U and horizontally. .

  Here, as shown in FIG. 9B, before the support leg unit U is installed on the floor slab S, the length (height) of the intermediate bundle 10B is set to the boundary bundle 10A. If the length is shorter than, the intermediate bundle material 10B does not get in the way when adjusting the height of the boundary bundle material 10A.

  In the present embodiment, the case where the height of the boundary bundle member 10A is adjusted when the upper surface of the beam component member 20 ′ is leveled in the support leg unit U at the rear stage is illustrated, but the present invention is not limited thereto. However, the height of the intermediate bundle member 10B is adjusted to make the upper surface of the beam component member 20 ′ horizontal, and then the boundary bundle member 10A while keeping the upper surface of the beam component member 20 ′ horizontal. You may adjust the height. Further, when the support leg unit U includes three or more bundle members 10, the height of one of the bundle members 10 is adjusted so that the upper surface of the beam component 20 'is horizontal, and then the beam What is necessary is just to adjust the height of the remaining bundle material 10, keeping the upper surface of component material 20 'horizontal.

  Further, the brace material 30 may be attached to the support leg unit U in advance, or may be attached after the support leg unit U is installed on the floor slab S.

  As described above, when the support leg unit U is used, the support leg structure L can be easily and quickly constructed, and as a result, a double floor can be efficiently constructed. That is, if the upper surface of one of the plurality of support leg units U, U,... Is leveled, the upper surfaces of the remaining support leg units U, U,. Can do. In addition, when the other end of the beam constituting member 20 ′ of the rear support leg unit U is placed on the bundle 10A for the boundary of the front support leg unit U whose height has been adjusted, the rear support legs In the unit U, the upper surface of the beam component 20 ′ can be made horizontal by simply adjusting the height of any one of the plurality of bundles 10 (boundary bundle 10A and intermediate bundle 10B). The height of the remaining bundle 10 can be adjusted with reference to the horizontal beam component 20 ′.

  Although illustration is omitted, the support leg structure L may be constructed without using the support leg unit U. Referring to FIG. 2, a plurality of bundle members 10, 10,... Are erected and fixed in a straight line at predetermined positions on a floor slab S, and a plurality of beam structures are formed on these upper surfaces. The supporting leg structure L may be constructed by fixing the materials 20 ′, 20 ′,. At this time, the bundle member 10 may be positioned at the boundary between the adjacent beam constituent members 20 ′ and 20 ′. In addition, when one beam constituent member 20 ′ is installed over three or more bundle members 10, the beam component member 20 ′ is fixed to the upper surface of any two bundle members 10, and the two bundle members are fixed. When the height of 10 is adjusted to make the upper surface of the beam component 20 horizontal and then the height of the remaining bundle member 10 is adjusted, the remaining beam member 10 has a horizontal beam component 20. It is convenient because it can be based on '.

Next, a method for laying the floor panel P will be described with reference to FIGS. 10 and 11.
First, after constructing a plurality of rows of support leg structures L, L,... On the floor slab S, as shown in FIG. 10, a plurality of floor panels P, P,. Overlay ... At this time, the floor panels P, P adjacent to the left and right are opposed to each other with a gap on the support leg structure L. Next, grooves formed on the support leg structure L by the plurality of floor panels P, P,... Arranged on the right side of the support leg structure L and the plurality of floor panels P, P,. The presser member C is inserted into the (gap). Then, as shown in FIG. 11, a bolt B2 is inserted into the inside of the pressing member C from the insertion hole C11 formed on the upper surface of the pressing member C, and the tip of the shaft portion is set to the nut accommodating portion 23 of the beam component 20 ′. , And a plurality of right floor panels P, P,... And a plurality of left floor panels P, P,... It is fixed to the upper surface of the beam constituent member 20 'collectively.

  As described above, according to the double floor according to the present embodiment, a plurality of floor panels P, P,... Arranged on both sides of the support leg structure L can be simultaneously fixed by one pressing member C. The installation work of the floor panel P can be performed simply and quickly.

It is a perspective view which shows the double floor which concerns on this invention. It is an enlarged view of FIG. It is a perspective view which shows a bundle material. It is a disassembled perspective view for demonstrating the structure of a bundle material. It is sectional drawing of a beam material (beam structural material). It is a side view of a support leg structure. It is a disassembled perspective view for demonstrating the structure of a floor panel. It is sectional drawing for demonstrating the connection of a beam material (beam structural material), a floor panel, and a pressing member, (a) is a figure which shows the state which removed the pressing member, (b) is attaching a pressing member. FIG. It is a side view for demonstrating the construction method of a support leg structure. It is a disassembled perspective view for demonstrating the laying method of a floor panel. It is an enlarged view of FIG.

Explanation of symbols

L Support leg structure 10 Bundle material 20 Beam material 20 'Beam component material 30 Brace material C Holding member P Floor panel P1 Panel body P2 Fixing member P22 Overhanging part J Connection body S Floor slab

Claims (4)

A plurality of rows of support leg structures arranged side by side on the floor slab, a plurality of floor panels laid between the adjacent support leg structures, and a presser member disposed along the support leg structure A double floor with
Each of the support leg structures includes a beam member on which an end of the floor body is placed, and at least three bundle members interposed between the beam member and the floor slab ,
Side ends of the left and right floor panels adjacent to each other with the support leg structure sandwiched between them are fixed to the beam material by the pressing member,
Each floor panel includes a panel body and a fixing member attached to an end of the panel body,
At the lower end portion of the fixing member, an overhanging portion is formed that projects laterally from the side end surface of the panel body.
The overhang is pressed down by the presser member,
The double floor according to claim 1, wherein an upper surface of the pressing member is flush with an upper surface of each panel body . Each of the support leg structures includes a plurality of support leg units arranged in a longitudinal direction.
Each of the support leg units includes a beam constituent member that is a part of the beam member, the bundle member attached to one end of the beam constituent member, and at least one attached to an intermediate portion of the beam constituent member. 2. The double floor according to claim 1, wherein the bundle floor is included, and the other end of the beam constituting member is supported by the bundle member of the other supporting leg unit adjacent thereto.   3. The double floor according to claim 1, wherein each of the support leg structures includes a brace member that connects two bundle members adjacent to each other in the longitudinal direction of the beam member. .   The double floor according to any one of claims 1 to 3, wherein two adjacent support leg structures are connected to each other.

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