JP6292986B2 - Free access floor system - Google Patents

Description

  The present invention provides a plurality of raised floor panels laid on an indoor floor board, a facility unit installed on the raised floor panel, and a drain pipe connected to the facility unit to form a double floor, And / or a floor system including a water supply pipe, wherein the drain pipe and / or the water supply pipe are installed indoors through a through hole in a building wall provided at a height between the floor surface of the floor board and the floor surface of the raised floor panel. The present invention relates to a free access floor system characterized by being piped between outdoors.

  To allow people with physical disabilities, such as elderly people and people with disabilities, to use their own rooms or hospital rooms, etc., or to wash their toilets, temporarily store excrement, drainage or water supply. Water storage facilities such as portable toilets and toilets that are stored in tanks and tanks are used.

  On the other hand, since processing of excrement stored in a bucket or a tank, drainage or water supply is troublesome and cumbersome, in recent years, Japanese Patent Application Laid-Open No. 2004-176528 (Patent Document 1) and Japanese Patent Application No. 2013-106508 are disclosed. As described in (Patent Document 2), water supply facilities such as portable toilets and wash facilities of the type that directly connect water supply and drainage pipes such as portable toilets and wash facilities to existing supply and drain tubes have been developed.

  However, these water facilities are temporarily placed or temporarily placed in the room for the purpose of care for people with physical disabilities, such as the elderly and disabled persons, and are different from ordinary remodeling. If the usage period is short and unnecessary, it is necessary to remove these equipment units and return the room to its original state.

  Therefore, in recent years, JP-A-11-193618 (Patent Document 3), JP-A-2004-176427 (Patent Document 4), JP-A-8-284383 (Patent Document 5) and JP-A-2005-226343 are disclosed. As described in Japanese Patent Publication (Patent Document 6) and the like, a raised floor panel is laid on an indoor floor board to make the floor surface a double floor, and water-related equipment such as portable toilets and wash facilities is raised floor panels. The installation of the water supply and drainage pipes in the room is facilitated by laying in the space between the floor surface of the floor panel and the existing floor surface. A method has been proposed that reduces the damage in the room after removing the water supply equipment.

  However, in the case of a water supply facility that requires construction of a water supply / drainage pipe, the water supply / drainage pipe of the water supply equipment must be extended and connected to an existing water supply / drainage pipe laid indoors or outdoors. For this reason, when trying to lay new water supply / drainage pipes for renovation at the time of renovation, new holes must be drilled in the building foundation or concrete slab under the floor, greatly reducing the quality of the housing. There was a problem that.

  In addition, when trying to avoid the construction of drilling holes in building foundations or concrete slabs under the floor, water supply / drainage pipes for water supply facilities are installed in existing toilets, bathrooms, kitchens, etc. that are not related to the location of the water supply facilities. There has been a problem that it has to be extended to the place where the water supply and drainage pipes are laid and the work for renovation becomes large after all.

  In addition, equipment units such as portable toilets, wash facilities, and handrails that are used by elderly people and people with physical disabilities in their own rooms and hospital rooms are generally simple and lightweight, so that they do not move or fall unintentionally. It is preferable to be firmly fixed on the floor surface of the floor board. However, for example, in the case of a raised floor panel that is installed to make the floor surface a double floor, the top plate (floor plate) is generally thin, and a structure such as a large draw, joist, a rigid floor, or a concrete slab is provided below the top plate. Since it is not installed, there is also a problem that an equipment unit such as a portable toilet, a washing facility, or a handrail cannot be raised and firmly fixed to the floor panel.

JP 2004-176528 A Japanese Patent Application No. 2013-106508 Japanese Patent Laid-Open No. 11-193618 JP 2004-176427 A JP-A-8-284383 JP 2005-226343 A

  Therefore, the present invention temporarily installs water facilities such as a portable toilet and a simple wash basin in the room, so that no large underfloor construction is required and the quality of the housing is not greatly reduced. Providing a floor system that can install watering facilities that require pipe work and that can firmly fix equipment units such as portable toilets, simple wash basins, or handrails on the floor surface of the floorboard Objective.

  As a result of intensive research on the installation location of existing water supply and drainage pipes in the building, the structure of the underfloor structure such as the building foundation and concrete slab, and the outer wall (building wall) of the building, among these, We obtained knowledge that the strength and quality of the housing would not be adversely affected even if the through-holes for inserting the water supply and drainage pipes were made in the building walls.

  For this reason, the water supply and drainage pipes for water supply facilities are formed on the existing floorboard indoors by installing a raised floor panel for forming a double floor and formed between the floorboard and the floor surface of the raised floor panel. In addition to laying in the open space, provide a through hole in the building wall at the height between the floor board and the floor surface of the raised floor panel, and connect the water supply / drain pipe of the water supply facility to the outdoor water supply / drain pipe through the through hole. The free access of the present invention enables installation of watering equipment such as a portable toilet or a simple wash basin in a room without the need for extensive underfloor construction and without adversely affecting the strength and quality of the housing. A floor system was developed.

  In addition, regarding the firm fixation of equipment units such as portable toilets, simple wash basins or handrails to the floor surface, it has been found that a plurality of connected raised floor panels work together to exert a strong anchor effect. The free access according to the present invention is capable of firmly fixing the equipment unit to the raised floor panel by providing the engaging means on the equipment unit side and providing the fixing means for engaging the engaging means on the raised floor panel side. A floor system was developed.

  Specifically, the floor system of the present invention includes a plurality of raised floor panels laid on an indoor floor board, an equipment unit installed on the raised floor panel, and equipment to form a double floor. A drainage pipe and / or a water supply pipe connected to the unit, the drainage pipe and / or the water supply pipe of the building wall provided at a height between the floor surface of the floor board and the floor surface of the raised floor panel. It has the characteristic of being piped between indoors and outdoors through through holes.

  In the floor system of the present invention, a publicly known raised floor panel can be used, but when the raised floor panel is laid on an indoor floor board, the drainage pipe of the equipment unit installed on the raised floor panel and / or Alternatively, it is preferable that a water supply pipe or an electric wire is formed at a lower portion of the floor surface of the raised floor panel and a space in which an upper portion of the floor plate can be laid.

  According to the floor system of the present invention, by laying the raised floor panel, it becomes possible to easily install an equipment unit that requires connection with a water supply / drain pipe such as a portable toilet or a simple wash basin, Since it is no longer necessary to install the water supply / drainage pipes of the unit facilities on the existing floor board, it is possible to eliminate the pipe level difference from the floor surface, and it is possible to realize a barrier-free interior and to achieve a beautiful finish.

  In the floor system of the present invention, the equipment unit is temporarily installed in an existing room for the sake of use mainly by persons with physical disabilities such as the elderly and disabled persons, and is provided with a drain pipe and / or a water pipe. It means water facilities such as portable toilets, simple washstands, and simple kitchen facilities that require construction, but also includes nursing tools such as handrails that need to be firmly attached to the floor surface. Further, the present invention is not necessarily limited to these as long as it is a living facility or a living tool that is temporarily installed in the room and needs to be fixed.

  In the floor system of the present invention, the drainage pipe and / or the water supply pipe of the equipment unit are connected to the outdoor water supply / drainage pipe through the through hole of the building wall provided at a height between the floor surface of the floor board and the floor surface of the raised floor panel. Connected.

  In buildings, if a new opening is made in the building foundation or concrete slab after construction, or if a part of the underfloor structure such as a large pull, joist, or hard floor is cut, the strength and quality of the housing will be adversely affected. It will be. However, in the floor system of the present invention, since the opening (through hole) for piping the water supply / drainage pipe of the equipment unit is provided in the outer wall (building wall) of the building, in most cases, the strength and quality of the housing are adversely affected. Will not affect. In addition, since the water supply / drainage pipe piped from the indoor to the outdoor through the through-hole of the building wall can be easily connected to the outdoor water supply / drainage pipe using the free space, the piping work period is also shortened.

  Further, in the floor system of the present invention, the through hole of the building wall is provided at a height between the floor surface of the floor board and the floor surface of the raised floor panel, so that a pipe step can be eliminated from the floor surface. It can be finished beautifully. As a result, according to the floor system of the present invention, water facilities such as a portable toilet and a simple wash basin can be easily installed in the room without requiring a large underfloor construction and without adversely affecting the strength and quality of the housing. Can be installed or removed.

  In the floor system of this invention, it is preferable that the raised floor panel is provided with the connection means for connecting with other adjacent raised floor panels. As the connecting means, known connecting means can be used, and the shape and form of the connecting means are not particularly limited. However, after connecting the raised floor panels, the connecting means is completely hidden from the floor surface. What is done is good. Examples of the means for connecting the raised floor panel include a combination of a hook and a hook hook provided at the lower part of the floor surface of the raised floor panel, and a combination of a male part and a female part having a hooked part.

  In addition, the connecting means is provided with a recess at the end of the upper top plate forming the floor surface of the raised floor panel, and, for example, a U-shaped connecting pin is connected to the recesses of the two adjacent top plates. The two raised floor panels may be connected to each other by being inserted so as to cross.

  The connecting means of the raised floor panel contributes to aligning and fixing the raised floor panel on the existing floor board, and prevents the raised floor panel from being displaced or moved from the floor board. Further, the raised floor panel connecting means connects a plurality of raised floor panels and integrates them, thereby exerting a strong anchor effect on the raised floor panel.

  For this reason, in the floor system of this invention, it is preferable to provide an engaging means in the equipment unit side, and to provide the fixing means engaged with an engaging means in the raising floor panel side. Further, the engaging means provided on the equipment unit side and the fixing means provided on the raised floor panel side are not particularly limited, and known engaging means and fixing means can be used.

  The raised floor panel includes a fixing means that engages with the engaging means attached to the equipment unit, so that the equipment unit such as a portable toilet or a simple washstand can be strongly fixed to the raised floor panel. Further, even in equipment units such as handrails that require stronger and more reliable fixation, the raised floor panel of the floor system of the present invention functions to satisfy the conditions.

  The raised floor panel used in the floor system of the present invention preferably includes a substantially rectangular top plate and a leg portion that supports the top plate from the lower side and partitions the piping passage in plan view.

  Since the raised floor panel used in the floor system of the present invention is mainly installed indoors, when the top plate of the raised floor panel is made substantially rectangular in plan view in accordance with a general indoor planar shape, the raised floor panel is used. It is possible to lay the panels all the way inside the room without any gaps, and the applicability can be expanded. In particular, when the top plate has a square shape, the raised floor panels can be connected and aligned without distinguishing the vertical side and the horizontal side of the top plate, so that the installation of the raised floor panel is facilitated.

  Moreover, in the raised floor panel, it is preferable that the leg part which forms a space between the existing floor surface and the floor surface of the raised floor panel supports the top plate from the lower side and partitions the piping passage.

  If the top plate is supported from below by the legs, it is possible to support the load of equipment units and pedestrians distributed on the top plate so that they are substantially opposite to the direction in which the load is applied. A heavy object can be safely and efficiently supported with a minimum number of legs. In addition, because drainage pipes, water supply pipes, electric wires, etc. are laid around the legs, if the pipe passages are partitioned by the legs, after the double floor is formed, without raising the raised floor panel It is possible to smoothly pipe the water supply / drainage pipe or to wire the electric wire.

  Moreover, it is preferable that the top plate of the raised floor panel has a through-hole for allowing the drainage pipe and / or the water supply pipe to pass therethrough.

  If the top plate of the raised floor panel is provided with a through-hole, the water supply and drainage pipes such as portable toilets and simple washstands can be connected to the lower part of the floor surface of the raised floor panel over a short distance. Therefore, it is possible to eliminate the level difference of the pipe, and it is possible to finish it more beautifully.

  The leg portion of the raised floor panel used in the floor system of the present invention is a cylindrical body having a substantially circular outline in plan view, and the central axis of the cylindrical body is arranged substantially coaxially with the center of the top plate. It is preferable.

  Further, the leg portion of the raised floor panel is composed of four cylindrical bodies having fan-shaped contours in plan view, and the cylindrical bodies are arranged so that the fan-shaped centers substantially coincide with the four corners of the top plate, respectively. It may be arranged.

  Drainage pipes, water supply pipes, or electric wires are laid around the legs, but the direction of the water supply / drainage pipes is to have a certain curvature (radius) so that they do not break or break when changing direction. It is required to be converted. For this reason, when the shape of the leg portion is substantially cylindrical, and the central axis of the cylindrical body is arranged so as to be substantially coaxial with the center of the top plate, the water supply / drainage pipe exceeds a certain distance along the substantially cylindrical leg portion. Therefore, the water supply / drainage pipe can be prevented from being bent or broken by bending.

  Further, when the leg portion is composed of four cylindrical bodies having a fan-shaped cross section and the leg portions are arranged so that the center of the fan-shaped cross section substantially coincides with the four corners of the top plate, for example, one leg portion When two or four other raised floor panels are connected to each other, two or four cylindrical bodies having a fan-shaped cross section are combined to have a substantially semicircular cross section or a substantially circular cross section. A cylindrical body is constituted. For this reason, two or four water supply / drainage pipes are combined so as to have a curvature (radius) of a certain level or more along the legs of the cylindrical body having a substantially semicircular cross section or a substantially circular cross section. Since it is converted, it is possible to prevent the water supply / drainage pipe from being bent or damaged by bending.

  Further, the above-mentioned leg portion having a fan-shaped cross section is arranged so that the center of the fan-shaped cross section substantially coincides with each of the four corners of the top plate. It can be supported from the lower side of the plate, and can stably support the load applied to the top plate without rattling the top plate.

  In the raised floor panel used in the floor system of the present invention, it is preferable that the top plate and the leg are integrally formed of a resin material.

  When the top plate and the legs are integrally formed of a resin material, it is possible to produce a raised floor panel that is strong against load and torsion even if the resin material is used, and to reduce the weight of the raised floor panel. You can also.

  Further, the raised floor panel used in the floor system of the present invention further includes a panel substrate so as to face the top plate with the leg portion interposed therebetween, and the panel substrate and the leg portion are integrally formed of a resin material. It may be.

  When the panel board is installed so as to face the top board with the legs in between, the raised floor panel fixes the legs between the top board that forms the floor surface and the panel board that touches the existing floor surface Because of the sandwich structure, the overall strength of the raised floor panel is improved, and in particular, the strength against shearing force acting in a direction parallel to the floor surface is enhanced.

  According to the free access floor system of the present invention, it is possible to easily install a facility unit that requires connection with a water supply / drain pipe such as a portable toilet or a simple wash basin by laying a raised floor panel. At the same time, it is no longer necessary to lay the water supply / drainage pipes of the unit facilities on the existing floor board, so it is possible to eliminate the piping steps from the floor surface, and to make the room barrier-free and to finish it beautifully. it can.

  In particular, according to the free access floor system of the present invention, the opening (through hole) for piping the water supply / drainage pipe of the equipment unit is provided in the outer wall (building wall) of the building. And does not adversely affect quality. In addition, since the water supply / drainage pipe piped from the indoor to the outdoor through the through-hole of the building wall can be easily connected to the outdoor water supply / drainage pipe using the free space, the piping work period is also shortened.

  According to the free access floor system of the present invention, a plurality of connected raised floor panels are integrated to exert a strong anchor effect. For this reason, providing the engaging means on the equipment unit side and providing the fixing means for engaging the engaging means on the raised floor panel side provide a stronger and more reliable equipment unit such as a portable toilet and a simple wash basin. Equipment units such as handrails that require fixing can also be fixed so as to satisfy the conditions.

It is a schematic diagram of the free access floor system concerning one embodiment of the present invention. It is the top view (a) and side view (b) of the 1st Example of the raising floor panel used with the free access floor system of this invention. It is the top view (a) and side view (b) of the 2nd Example of the raised floor panel used with the free access floor system of this invention.

  Hereinafter, a free access floor system according to an embodiment of the present invention will be described in detail with reference to the drawings. The present invention is not limited to the embodiments shown below, and various modifications can be made without departing from the technical idea of the present invention.

  FIG. 1 is a schematic diagram of a free access floor system 1 according to an embodiment of the present invention, and a cross section of a first floor portion of a general building 2 is schematically shown.

  The building 2 shown in FIG. 1 has a concrete foundation 20 for supporting the building 2 on a soil foundation 3 and a moisture barrier layer 21 made of concrete in order to prevent moisture mainly from the soil. On the concrete foundation 20, a thick beam called a large pull 23 for fixing the building wall 22 and the like and a small beam called a joist 25 for fixing the floor plate 24 are constructed.

  In general, since reinforcing bars are inserted into the concrete foundation 20, the existing water supply / drainage pipe 60 necessary for the building 2 avoids the moisture-proof layer 21 as shown in FIG. Piped through the opening of the foundation 20.

  In the free access floor system 1 according to an embodiment of the present invention, a plurality of raised floor panels 4 laid on an indoor floor plate 24 and a raised floor panel 4 are installed to form a double floor. A portable toilet 5 and a water supply / drain pipe 6 connected to the portable toilet 5 are provided. The water supply / drain pipe 6 is a building provided at a height between the floor surface of the floor plate 24 and the floor surface of the raised floor panel 4. A pipe is provided between the indoor and the outdoor through a through hole 26 of the wall 22.

  In the free access floor system 1 according to the embodiment of the present invention, a publicly-known raised floor panel 4 can be used. When the raised floor panel 4 is laid on an indoor floor plate 24, the raised floor panel 4 A space is formed in which the water supply / drain pipe 6 or the electric wire (not shown) of the portable toilet 5 installed in the floor can be laid on the lower part of the floor surface of the raised floor panel 4 and on the upper surface of the floor plate 25.

  According to the free access floor system 1 according to an embodiment of the present invention, the portable toilet 5 that needs to be connected to the water supply / drain pipe 6 can be easily installed in the room by laying the raised floor panel 4. At the same time, it is no longer necessary to lay the water supply / drainage pipe 6 of the portable toilet 5 on the existing floor plate 24. Therefore, it is possible to eliminate the pipe level difference from the floor surface, and to realize a barrier-free indoor space. Can be finished.

  In the free access floor system 1 according to an embodiment of the present invention, the portable toilet 5 is illustrated as an example of the equipment unit installed on the raised floor panel 4, but the equipment unit is not limited to this, In addition to water facilities such as simple washstands and kitchen facilities that are temporarily installed in existing rooms for use by people with physical disabilities, such as the physically challenged, and require the construction of water supply and drainage pipes. It may be a nursing tool such as a handrail that needs to be firmly attached to the floor surface.

  In the free access floor system 1 according to the embodiment of the present invention, as shown in FIG. 1, the water supply / drainage pipe 6 of the portable toilet 5 has a height between the floor surface of the floor plate 24 and the floor surface of the raised floor panel 4. It connects with an outdoor water supply / drain pipe through the through-hole 26 of the building wall 22 provided in the.

  In the building 2, after construction, a new opening is provided in the building foundation 20 or concrete slab (not shown), or an underfloor structure such as a large pull 23, joists 25, or a hard floor (not shown) is provided. If the part is cut, the strength and quality of the housing will be adversely affected. However, in the free access floor system 1 according to an embodiment of the present invention, the opening for piping the water supply / drain pipe 6 of the portable toilet 5 is provided as a through hole 6 in the building wall (outer wall) 22 of the building 2. Does not adversely affect the strength and quality of the housing. In addition, since the water supply / drainage pipe 6 piped indoors to outdoors through the through hole 26 of the building wall 22 can be easily connected to an outdoor water supply / drainage pipe (not shown) using a free space, the plumbing period Is also shortened.

  In the free access floor system 1 according to the embodiment of the present invention, the through hole 26 of the building wall 22 is provided at a height between the floor surface of the floor plate 24 and the floor surface of the raised floor panel 4. It is possible to eliminate the pipe step from the surface and to finish it beautifully. As a result, according to the free access floor system 1 according to the embodiment of the present invention, the portable toilet 5 and its interior can be used indoors without requiring a large underfloor construction and without adversely affecting the strength and quality of the housing. The water supply / drain pipe 6 can be easily installed or removed.

  Although not shown, in the free access floor system 1 according to the embodiment of the present invention, the engaging means is provided on the portable toilet 5 side, and the engaging means of the portable toilet 5 is also provided on the raised floor panel 4 side. A fixing means is provided for engaging with. The raised floor panel 4 includes a fixing means that engages with an engaging means attached to the portable toilet 5, so that the portable toilet 5 can be strongly fixed to the raised floor panel 4.

  Although not shown, the top plates 41a and 41b (see FIGS. 2 and 3) of the raised floor panel 4 have through holes for allowing the water supply / drainage pipe 6 to pass therethrough. If the top plate 40 of the raised floor panel 4 is provided with a through hole, the water supply / drainage pipe 6 of the portable toilet 5 can be piped to the lower part of the floor surface of the raised floor panel 4 at a short distance. Therefore, it is possible to eliminate the level difference of the pipe, and it is possible to finish it more beautifully.

[Example 1]
FIG. 2 is a plan view of a first example of the raised floor panel 4a used in the free access floor system 1 according to the embodiment of the present invention in a state where three raised floor panels 4a are connected (a ) And its side view (b).

  The leg portion 40a of the raised floor panel 4a of the first embodiment is a cylindrical body having a circular outline in a plan view, and the central axis Oa of the cylindrical body is disposed substantially coaxially with the center Oa of the top plate 41a. Has been.

  In the raised floor panel 4a of the first embodiment, the top plate 41a and the leg portion 40a are integrally formed of a resin material. For this reason, the raised floor panel 4a of the first embodiment is robust against load and torsion even if a resin material is used, and is lightened.

  By the way, drainage pipes, water supply pipes, electric wires, etc. are laid around the leg portions 40a of the raised floor panel 4a. Especially, when the direction of the water supply / drainage pipes is changed, the curvature is more than a certain value so as not to be broken or damaged. It is required that the direction is changed to have (radius). For this reason, in the raised floor panel 4a of the first embodiment, the shape of the leg portion 40a is cylindrical, and the central axis Oa of the cylindrical body is arranged so as to be substantially coaxial with the center of the top plate. The water supply / drainage pipe is changed in direction so as to have a curvature (radius) of a certain level or more along the cylindrical leg portion 40a, and the water supply / drainage pipe is prevented from being bent or broken by bending.

  Since the raised floor panel 4a of the first embodiment is mainly installed indoors, the shape of the top plate 41a is square in plan view, and the vertical side and the horizontal side of the top plate 41a are not distinguished. Since the raised floor panels 4a can be connected and aligned with each other, the installation of the raised floor panels 4a is facilitated, and the raised floor panels 4a are substantially spaced from each other to the corners of the room according to a general indoor planar shape. It can be laid down.

  Further, in the raised floor panel 4a of the first embodiment, the leg portion 40a that forms a space between the existing floor surface and the floor surface of the raised floor panel 4a supports the top plate 41a from below and is connected to the piping. The passage is divided.

  In this way, when the top plate 41a is supported from the lower side by the leg portion 40a, the load of the equipment unit or the pedestrian distributed on the top plate 41a is substantially opposed to the direction in which the load is applied by the leg portion 40a. Since it can be supported, a heavy object can be safely and efficiently supported with the minimum necessary leg 40a. In addition, since a water supply / drain pipe or an electric wire is laid around the leg portion 40a, if the pipe passage is partitioned by the leg portion 40a, a double floor is formed, and then the raised floor panel 4a is not modified. It is possible to smoothly pipe the water supply / drainage pipe or to wire the electric wire.

  The raised floor panel 4a of the first embodiment is provided at the lower part of the floor surface of the raised floor panel 4a and is connected to another adjacent raised floor panel 4a, and has a L-shaped hook 42a. There is provided connecting means comprising a combination of (FIG. 2b) and a hook-shaped hook 43a (FIG. 2a) having a square shape in plan view.

  For this reason, the connecting means 42a and 43a of the raised floor panel 4a of the first embodiment contribute to aligning and fixing the raised floor panel 4a on the existing floor plate, and the raised floor panel 4a is displaced from the floor plate. To prevent or move. Moreover, the connection means 42a and 43a of the raised floor panel 4a connect the several raised floor panel 4a, and make the raised floor panel 4a show a strong anchor effect by connecting and integrating.

[Example 2]
FIG. 3 is a plan view of a second example of the raised floor panel 4b used in the free access floor system 1 according to the embodiment of the present invention in a state where three raised floor panels 4b are connected (a ) And its side view (b).

  The leg portion 40b of the raised floor panel 4b according to the second embodiment is composed of four cylindrical bodies having a fan-shaped outline in plan view, and the cylindrical body has a fan-shaped center Ob at the four corners of the top plate 41b. And are arranged so as to substantially coincide with each other.

  In the raised floor panel 4b of the second embodiment, the top plate 41b and the four leg portions 40b are integrally formed of a resin material. For this reason, even if the raising floor panel 4b of the 2nd Example uses the resin material, it is strong with respect to a load and a twist, and the weight reduction is achieved.

  By the way, drainage pipes, water supply pipes, electric wires, etc. are laid around the leg portions 40b of the raised floor panel 4b. Especially, when the direction of the water supply / drainage pipes is changed, the curvature is more than a certain value so as not to be broken or damaged. It is required that the direction is changed to have (radius). For this reason, in the raised floor panel 4b of the second embodiment, the shape of the leg portion 40b is composed of four cylindrical bodies having a sector cross section, and the center Ob of the sector cross section is at the four corners of the top plate 41b. Since the leg portions 40b are arranged so as to substantially coincide with each other, for example, when two or four other raised floor panels 4b are connected around one leg portion 40b, the leg portion 40b having a fan-shaped cross section is also provided. By combining two or four, a leg portion 40b having a semicircular cross section or a circular cross section is formed. For this reason, by combining two or four water supply / drainage pipes, the direction is changed so as to have a curvature (radius) of a certain level or more along the leg portion 40b having a semicircular cross section or a circular cross section. Is prevented from being bent or damaged by bending.

  Since the raised floor panel 4b of the second embodiment is mainly installed indoors, the shape of the top board 41b is square in a plan view, and without distinguishing the vertical side and the horizontal side of the top board 41b. Since the raised floor panels 4b can be connected and aligned with each other, the installation of the raised floor panels 4b is facilitated, and the raised floor panels 4b are substantially spaced from each other in the room according to the general planar shape of the room. It can be laid down.

  Further, in the raised floor panel 4b of the second embodiment, the leg portion 40b that forms a space between the existing floor surface and the floor surface of the raised floor panel 4b supports the top plate 41b from below and is connected to the piping. The passage is divided.

  As described above, when the top plate 41b is supported from the lower side by the leg portions 40b arranged at the four corners of the top plate 41b, loads of equipment units and pedestrians distributed on the top plate 41b are loaded by the leg portions 40b. Therefore, it is possible to support a heavy object safely and efficiently with the minimum necessary leg portion 40b without rattling the top plate 41b. Further, since a water supply / drain pipe or an electric wire is laid around the leg portion 40b, if the piping passage is partitioned by the leg portion 40b, a double floor is formed, and then the raised floor panel 4b is not modified. It is possible to smoothly pipe the water supply / drainage pipe or to wire the electric wire.

  The raised floor panel 4b of the second embodiment is provided with a recess 42b at the end of the upper top plate 41b that forms the floor surface of the raised floor panel 4b in order to connect to another adjacent raised floor panel 4b. The U-shaped connecting pins 43b are inserted into the recesses 42b of two adjacent top plates so as to cross the two top plates 41b.

  For this reason, the connecting means 42b and 43b of the raised floor panel 4b of the second embodiment contribute to aligning and fixing the raised floor panel 4b on the existing floor plate, and the raised floor panel 4b is displaced from the floor plate. To prevent or move. Moreover, the connection means 42b and 43b of the raised floor panel 4b connect the several raised floor panel 4b, and make the raised floor panel 4b exhibit a strong anchor effect.

  Further, unlike the raised floor panel 4b of the second embodiment, the raised floor panel 4b of the second embodiment includes a panel substrate 44b so as to face the top plate 41b with the leg portion 40b interposed therebetween. The panel substrate 44b and the leg portion 40b are integrally formed of a resin material.

  In the raised floor panel 4b of the second embodiment, since the panel substrate 44b is provided so as to face the top plate 41b with the leg portion 40b interposed therebetween, the raised floor panel 4b is a ceiling that forms a floor surface. Since the sandwich structure is such that the leg portion 40b is fixed between the plate 41b and the panel substrate 44b in contact with the existing floor surface, the overall strength of the raised floor panel 4b is improved, and in particular parallel to the floor surface. Strength against shear force acting in the direction is enhanced.

1 ... Free access floor system 1
2 ... Building, building 20 ... Concrete foundation 21 ... Dampproof layer 22 ... Building wall 23 ... Drawing 24 ... Floor board 25 ... Jump 26 ...... Through hole 3 ... Soil foundation 4,4a, 4b ... Raised floor panel 40a, 40b ... Leg 41a, 41b ... Top plate 42a ... L-shaped hook (Connecting means)
42b ... concave portion (connecting means)
43a ... Hollow hook hook (connecting means)
43b ... U-shaped connecting pin (connecting means)
44b ... Panel substrate 5 ... Portable toilet 6 ... Water supply / drainage pipe 60 ... Existing water supply / drainage pipes Oa, Ob ... center

Claims (11)

A plurality of raised floor panels laid on an indoor floor slab supported by a concrete slab, overdraw, joist or rigid floor to form a double floor;
An equipment unit installed on the raised floor panel, and a drain pipe and / or a water supply pipe connected to the equipment unit,
The drain pipe and / or the water supply pipe are piped between indoors and outdoors through a through hole in a building wall provided at a height between the floor surface of the floor board and the floor surface of the raised floor panel. Free access floor system characterized by   The free access floor according to claim 1, wherein the drain pipe and / or the water supply pipe are piped in a space formed between a floor surface of the floor board and a floor surface of the raised floor panel. system.   The free access floor system according to claim 1, wherein the facility unit is a toilet facility, a washroom facility, or a kitchen facility.   The free access floor system according to any one of claims 1 to 3, wherein the raised floor panel includes a connecting means for connecting to another adjacent raised floor panel.   5. The free access floor system according to claim 1, wherein the raised floor panel includes a fixing unit that engages with an engaging unit that is attached to the equipment unit. 6.   The said raised floor panel is provided with the substantially rectangular top plate in planar view, and the leg part which supports the said top plate from the lower side, and divides a piping channel | path. Free access floor system as described in.   The free access floor system according to any one of claims 1 to 6, wherein the top plate has a through hole for allowing the drain pipe and / or the water supply pipe to pass therethrough.   The said leg part is a cylindrical body which has a substantially circular outline in planar view, The center axis | shaft of the said cylindrical body is arrange | positioned substantially coaxially with the center of the said top plate. Free access floor system as described in.   The leg portion is composed of four cylindrical bodies having a fan-shaped outline in plan view, and the cylindrical bodies are arranged so that the centers of the fan-shapes substantially coincide with the four corners of the top plate, respectively. The free access floor system according to claim 7, wherein:   The free access floor system according to claim 8 or 9, wherein the top plate and the leg are integrally formed of a resin material.   The free access floor system according to claim 8 or 9, wherein the raised floor panel further includes a panel substrate, and the substrate and the leg portion are integrally formed of a resin material.

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