JP2010013873A - Floating floor structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a floating floor structure capable of securing waterproofness, reducing members used and construction costs, and simplifying a repair work, in a sheet waterproofing method using a floor covering material. <P>SOLUTION: A thermoplastic resin waterproof sheet 2 is laid on a waterproof substrate 1; a supporting base 3 composed of a pedestal 31 with an erected bolt portion 32 is fixed to the waterproof substrate in a prescribed position on the thermoplastic resin waterproof sheet by means of a base fixing screw 312; the pedestal of the supporting base is covered with an additional sticking sheet 5; and a finishing plate retainer 6, which is welded to the thermoplastic resin waterproof sheet and which has a female screw portion 62 inside, is screwed to the supporting base; and the floor finishing plate is fixed by means of a finishing plate retainer portion 61 and a sandwich implement 81. In the floating floor structure for repair, a waterproof sheet fixing bracket is fixed by detaching the sandwich implement and screwing a bracket fixing screw to the female screw portion of the finishing plate retainer; and the thermoplastic resin waterproof sheet for the repair is fixed with the waterproof sheet fixing bracket. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  The present invention relates to a floating floor structure in which a floor finish board is floated and constructed on a waterproof sheet in a concrete waterproof base sheet waterproofing method.

  Conventionally, the cinder pressing method that poured concrete into the rooftop of asphalt waterproofing has been the mainstream. Bi-sheet waterproof cinder holding method is increasing. Recently, dry pressing methods and floating floor methods that do not place concrete as a protective layer on the waterproof layer have been proposed.

  In general, in a sheet waterproofing work, a waterproof sheet is bonded and fixed to a concrete waterproof base with an adhesive or mechanically fixed using a fixing bracket, and then the adjacent waterproof sheets are joined together to install the waterproof sheet. The above-mentioned dry-type presser method is constructed by laying a cushioning material such as a foamed polyethylene sheet having a thickness of 1 to 5 mm, a polyester fiber or polypropylene fiber-based nonwoven fabric, or a lattice net made by foaming polyethylene on a constructed waterproof sheet. A plurality of floor finish plates for makeup and walking protection such as concrete-based molded products, ceramic-based fired products, and wood-based products are laid on top of each other. When mechanically fixing a waterproof sheet with this dry-type presser method, if the floor finish plate is placed at the position of the fixing bracket, a rattling will occur due to a step, and it will take excessive labor to adjust it, and further walking The problem that a floor finish board is damaged by etc. also arises. In addition, the presser method for mechanically fixing the waterproof sheet has a problem that it is easy to pick up unevenness of the ground and the finished state is not preferable.

  The floating floor construction method is to place or fix a support frame with height adjustment for floor finishing plate installation at a predetermined position on the waterproof sheet constructed as described above, and fix the floor finishing plate to the support frame. is there. As shown in FIGS. 13 and 14, the support frame is arranged in a grid pattern on the waterproof sheet, and one support frame has four floor finishing board corners, and all four corners of the floor finishing board are another support frame. Make it appear. In this floating floor construction method, the surface is flat and finished more beautifully than the above-mentioned presser method, but compared to the presser method, this method applies the waterproof sheet to the waterproof base, and then fixes the support base to the waterproof base, Further, since the floor finish plate is fixed to the support frame, there is a disadvantage that the number of members to be used and the number of man-hours for the construction increase and the cost becomes high.

  Furthermore, when the waterproof sheet is deteriorated or damaged, renovation work is necessary. However, in either of the above methods, the floor finish plate must be removed at the time of refurbishment. If it is fixed to a waterproof base, waterproofing work including removal will be very large.

In the floating floor construction method, there are proposed a fixing method (Patent Document 1) in which the fixing portion of the floor finish plate does not protrude from the upper surface of the finish plate, and a method of fixing the support member without making a hole in the waterproof sheet (Patent Document 2). Yes. In the method of Patent Literature 1, a groove is provided on the side surface of the floor finish plate, and a fixing portion is accommodated in the groove so that the fixing portion does not protrude from the upper surface of the finishing plate. In this method, a joining member is provided on the lower surface of the sheet, and the joining member is welded to a waterproof sheet applied to the base, and the support frame is fixed to the base without opening a hole in the waterproof sheet. The problems of the floating floor construction method described above, that is, the reduction of members to be used, the reduction of construction man-hours, the simplification of the repair work, etc. have not been studied, and development is desired.
JP 2001-173204 A JP 2004-285614 A

  The present invention has been made in view of the above-described problems, and in the sheet waterproofing method using a floor finish plate, while ensuring waterproofness, reduces the members and construction man-hours used, and consequently reduces construction costs. Further, it is to provide a floating floor structure that can simplify the renovation work.

A waterproofing base made of thermoplastic resin is laid on the waterproof base, and the base and the lower part of the bolt are covered with the thermoplastic resin at a predetermined position on the waterproofing sheet made of thermoplastic resin. The base is fixed to the waterproof base with the base fixing screws, and the thermoplastic resin waterproof sheet is fixed to the waterproof base.
Cover the pedestal of the support frame with the additional tension sheet, and weld the additional sheet, the thermoplastic resin waterproof sheet and the pedestal of the support frame,
It is a floating floor structure in which a finish plate receiving portion having an internal thread portion is screwed to a bolt portion of a support base, and a floor finish plate is fixed by the finish plate receiving portion and a holding tool. ,
At the time of renovation, the clamping tool is removed from the floating floor structure according to claim 1, and the waterproof sheet fixing bracket is fixed by screwing a metal fixing screw to the female thread portion of the finishing plate holder, and the waterproof sheet fixing bracket is used for the repair. This is a modified floating floor structure for fixing a thermoplastic resin waterproof sheet (Claim 2).

  There is no need for the two steps of fixing the waterproof sheet to the base and fixing the support frame to the base after fixing the waterproof sheet to the base as in the prior art. That is, since the waterproof sheet is fixed on the pedestal of the support frame, the waterproof sheet and the support frame can be fixed to the base simultaneously in one process, and the number of members and man-hours can be reduced. In addition, since the base of the support base and the lower part of the bolt part are coated with the thermoplastic resin, it can be heat-welded or solvent-welded to the base of the support base and the waterproof sheet with the additional tension sheet, and the bonding is strengthened, Sufficient waterproofness can be secured. Furthermore, at the time of refurbishment, the holding fixture can be removed without removing the support frame, and a waterproof sheet fixing bracket can be attached instead. The construction work can be saved greatly.

  A floating floor structure according to an embodiment of the present invention will be described in detail with reference to the drawings.

[Embodiment 1]
Embodiment 1 is shown in FIG.
In this floating floor structure, a thermoplastic waterproofing sheet 2 is laid on a concrete waterproof base 1, and the thermoplastic waterproofing sheet 2 is placed on a predetermined position on the thermoplastic waterproofing sheet 2 by a frame fixing screw 312. A support base 3 consisting of a base 31 and a bolt part 32 standing upright from the base is fixed to the waterproof base 1,
An additional tension sheet 5 having a hole 51 larger than the outer diameter of the bolt part 32 is placed at substantially the center so as to cover the base 31 through the bolt part 32 in the hole 51, and the additional tension sheet 5 is waterproofed with the base 31 and the thermoplastic resin. It is welded to the sheet 2 by heat welding, solvent welding, etc.
The internal thread portion 62 of the finishing plate receiver 6 is screwed into the bolt portion 32 to adjust the height of the finishing plate receiver 6, and the floor finish plate 7 is placed on the receiving portion 61 of the finishing plate receiver 6, 8 is configured such that the male screw portion 82 is screwed onto and fixed to the upper portion of the female screw portion 62 of the finishing plate holder 6.
As shown in FIG. 14, the required number of support bases 3 are placed on a thermoplastic resin waterproof sheet 2 like a grid, and each support base 3 is fixed to the waterproof base 1. The floor finishing plate 7 (dotted line in the figure) is fixed at four corners by four support frames 3, and each corner of the four floor finishing plates 7 is fixed to one support frame 3 as shown in FIG. To do.

  As the thermoplastic resin waterproof sheet 2, a vinyl chloride resin waterproof sheet, an olefin resin waterproof sheet, an acrylic resin waterproof sheet, or the like can be used. A vinyl chloride resin-based waterproof sheet is preferable from the viewpoint of workability, weldability between sheets, and adhesiveness to the waterproof sheet fixing bracket. The thickness of the thermoplastic resin waterproof sheet can be 0.5 to 5.0 mm, preferably 1.0 to 2.5 mm.

As shown in FIGS. 3 and 4, the support frame 3 includes a pedestal 31 and a bolt portion 32 erected from the pedestal, and the pedestal 31 is provided with a plurality of screw holes 311 for fixing to a waterproof base. The pedestal 31 and the bolt part 32 can be easily integrated by an adhesive and welding, but the strength is improved by screwing the pedestal 31 and screwing the bolt part 32 into the base 31 for welding.
As the material for the support frame, metal, high-strength thermoplastic resin, thermosetting resin, or the like can be used. From the viewpoint of strength, metal is preferable, and steel is particularly preferable. In the case of using a steel material, the diameter of the bolt portion 32 is preferably 5 to 30 mm, and more preferably 10 to 20 mm in consideration of strength and cost. The bolt part 32 has a length of 50 to 100 mm. When steel is used, the thickness of the pedestal 31 is preferably 1.0 to 10 mm, more preferably 1.6 to 6.0 mm, and even more preferably 2.0 to 4.0 mm in consideration of strength and cost. The outer diameter of the base 31 is 50 to 150 mm. If the outer diameter of the pedestal 31 is smaller than 50 mm, the accommodation of the support frame 3 becomes unstable, and if it exceeds 150 mm, it takes time and effort to weld, and the strength is saturated and meaningless.
As the covering resin layer 33, it is necessary to cover 5 to 10 mm portions below the support frame 3 and the bolt portion 32 with a thermoplastic resin, and the thickness of the covering resin layer 33 is preferably 0.1 to 3 mm. The thermoplastic resin to be coated is preferably a resin that is the same or the same type as that of the reinforcing sheet 5 and the thermoplastic resin waterproof sheet 2 and is easily welded. The pedestal 31 is circular in FIG. 3, but is not limited to a circular shape and may be a polygon or other shapes.
When the support base 3 is fixed to the waterproof base 1 through the thermoplastic resin waterproof sheet 2 with the base fixing screw 312, a double-sided adhesive tape is interposed between the base 31 and the thermoplastic resin waterproof sheet 2 as shown in FIG. 4 is preferably pasted, which further improves waterproofness. Examples of the double-sided pressure-sensitive adhesive tape 4 include butyl-based, acrylic-based, and EVA-based double-sided pressure-sensitive adhesive tapes, but a butyl-based double-sided pressure-sensitive adhesive tape is preferable in terms of waterproofness.

  9 and 10, the reinforce sheet 5 is a sheet that is reinforced in order to ensure the waterproof property of the thermoplastic resin waterproof sheet 2 at the support frame portion, and is thermoplastic with the base 31 of the support frame 3. Since the sheet is welded to the resin waterproof sheet 2, it is preferable that the base 31, the covering resin layer 33 below the bolt part 32, and the thermoplastic resin waterproof sheet 2 are made of the same or the same kind of easily welded resin. . After the additional tension sheet 5 is welded to the pedestal 31 and the thermoplastic resin waterproof sheet 2, as shown in FIG. 1, the additional sheet 5 is in contact with the gap between the additional tension sheet 5 and the bolt portion and the thermoplastic resin waterproof sheet 2. The end portion may be waterproofed with a sealer 52. Examples of the sealer 52 include a sealing resin layer 33, a thermoplastic resin waterproof sheet 2, a sealer made of the same or the same kind of resin as the reinforcing sheet 5, or a sealer made of urethane, modified silicon, silicon or butyl. It is done.

As shown in FIGS. 5 and 6, the finishing plate receiver 6 has a female screw part 62 on the inside, and is a member directly supported by the receiving part 61 of the floor finishing plate 7, and the female screw part 62 is a bolt part 32 of the support frame. It is possible to adjust the height by screwing. As shown in FIG. 5, the shape of the receiving part 61 and female thread part 62 of the finishing plate holder 6 is preferably circular or polygonal, and other shapes can also be used.
In order to prevent the finishing plate holder 6 from loosening, an adhesive such as an epoxy adhesive or a urethane adhesive is applied to the bolt portion 32 of the support frame 3 or the female thread portion 62 of the finishing plate holder 6 to finish the plate holder. It is preferable to adjust the height to 6.

  The floor finish plate 7 is used as a protective material for protecting the waterproof sheet 2 made of thermoplastic resin, such as a concrete-based molded plate, a ceramic-based fired plate, a wood-based plate, a synthetic resin-based plate, a metal plate, and the like. A finishing board can be illustrated. The shape of the floor finish plate 7 is rectangular, and the length of one side is preferably 100 to 1000 mm, and more preferably 200 to 800 mm. Since the support frame 3 is fixed at a predetermined position in accordance with the dimensions of the floor finish plate 7, if it is smaller than 100 mm, the required number of the support frames 3 is increased and the cost is increased, and if it exceeds 1000 mm, the strength of the floor finish plate 7 is secured. Therefore, it is necessary to increase the thickness, which leads to cost increase and weight increase.

As shown in FIGS. 7 and 8, the clamping tool 8 is composed of a clamping part 81 and a male screw part 82 for fixing the floor finish plate 7 with the receiving part 61 of the finishing plate holder 6. The male screw portion 82 of the clamping tool 8 is screwed and fixed to the female screw portion 62 of the plate holder 6. As shown in FIG. 7, the shape of the clamping part 81 may be circular, polygonal, or other shapes. The shapes of the finishing plate receiver 6 and the holding tool 8 are not particularly limited as long as the floor finishing plate 7 can be held between the finishing plate receiver 6 and the holding tool 8.
The clamping tool 8 may be formed integrally with the clamping part 81 and the male screw part 82, or may be formed separately. When the holding part 81 and the male screw part 82 are formed integrally, a hole is formed in the center of the holding part 81, a female screw that matches the male screw of the male screw part 82 is cut around the hole, and the male screw part 82 is screwed together. It may be formed, and may be further welded or coated with an adhesive. Further, the male screw part 82 may be fixed to the holding part 81 by welding or applying an adhesive without making a hole in the center of the holding part 81.
When the clamping part 81 and the male screw part 82 are formed separately, the clamping part 81 has a hole larger than the screw diameter of the male screw part 82 at the center and smaller than the head of the male screw part. Bolts, screws, etc. can be used. In this case, the floor finishing plate 7 is fixed by placing the floor finishing plate 7 on the receiving portion 61 of the finishing plate holder 6, placing the clamping portion 81 thereon, and receiving the male screw portion 82 through the hole of the clamping portion 81. It is formed by screwing into the female thread portion 62 of the tool 6.
If the upper part of the hole of the holding part 81 is chamfered so that the countersunk screw can be accommodated, the countersunk screw can be used for the male screw part 82 and the metal fixing screw 91 can be shared.

[Embodiment 2]
FIG. 2 shows a second embodiment. This Embodiment 2 is a form in the case of renovation, the clamping tool 8 is removed from the floating floor structure of Embodiment 1, and the waterproof sheet fixing metal fitting 9 is attached to the finishing plate holder 6 as shown in FIGS. The fixing thermoplastic resin waterproof sheet 2 ′ is fixed on the floor finish board 7 by fixing with fixing screws 91, and the repair thermoplastic resin waterproof sheet 2 ′ is welded to the waterproof sheet fixing metal fitting 9 by electromagnetic induction heating. It is a modified floating floor structure. When the waterproof sheet fixing bracket 9 is fixed to the female screw portion 62 of the finishing plate holder 6 with the metal fixing screw 91, an adhesive such as urethane or epoxy may be applied to the screw portion to prevent loosening.

  The waterproof sheet fixing bracket 9 is formed by laminating and integrating a heat-welding layer for fixing the waterproofing waterproof sheet 2 'for repairing thermoplastic resin on its upper surface. As the material, a steel plate that is not easily rusted even in a high humidity state, such as a stainless steel plate or a steel plate that has been subjected to rust prevention treatment such as zinc, aluminum, magnesium plating or zinc plating, is preferably used. The thickness is about 0.6 to 1.5 mm, and the shape is arbitrary, such as a square or rectangular plate shape, or a circular or elliptical disk shape, and the size is one side or an outer diameter of 50. It is formed to about ~ 100 mm. The thermal welding layer laminated and integrated on the upper surface of the waterproof sheet fixing metal 9 may be any material that can be thermally welded to the thermoplastic resin waterproof sheet 2 ′ by heating, such as a thermoplastic resin and a hot melt adhesive. Examples of the hot melt adhesive include polyester, polyamide, and ethylene-vinyl acetate copolymer hot melt adhesives.

  The holding tool 8 is removed from the floating floor structure of the first embodiment, and a metal fixing screw 91 is screwed into the female thread portion 62 of the finishing board holder 6 so that the floor finishing board 7 is fixed with the waterproof sheet fixing metal 9 for repair. When the thermoplastic resin waterproof sheet 2 ′ is constructed, the thickness of the floor finish board 7 is 1 between the floor finish board 7 and the thermoplastic resin waterproof sheet 2 ′ for repairing in order to ensure buffering or airtightness. It is preferable to sandwich a foam such as polyethylene foam of 5 mm or urethane foam, a film of 0.05 to 0.5 mm thick polyethylene, polypropylene, polyvinyl chloride, nylon or the like.

  The floor finish plate 7 can be fixed by using the waterproof sheet fixing bracket 9 from the beginning instead of the holding tool 8, but the heat-welded layer laminated and integrated on the upper surface of the waterproof sheet fixing bracket 9 is a solar ray. , Exposed to wind and rain, will deteriorate over time. Therefore, at the time of refurbishment, even if it is welded to the waterproofing waterproofing sheet 2 'for repairing, the desired welding strength cannot be obtained, and it will be replaced with a new waterproofing sheet fixing bracket. It is better to use an inexpensive clamping tool 8.

[Other embodiments]
There are two methods for fixing the waterproof sheet to the waterproof base: an adhesive method using an adhesive and a mechanical fixing method using a fixing bracket. The mechanical fixing method includes a front-end method and a retrofitting method. In the tipping method, the fixing bracket is first fixed to a predetermined position on the base with a screw, and a waterproof sheet is laid from above, and the waterproof sheet is welded to the fixing bracket by heating such as electromagnetic induction. With the retrofitting method, a waterproof sheet is placed on the base, a fixing bracket is placed at a predetermined position on the waterproof sheet, the fixing sheet is fixed by penetrating the waterproof sheet later with a screw, and an additional sheet is covered with the fixing bracket. In this way, it is welded with a waterproof sheet to ensure watertightness.
Although the second embodiment is a front-end construction method, the above-described post-installation method can be applied at the time of repair, and an adhesive construction method can also be used in combination.

  Since the floating floor structure of the present invention fixes the thermoplastic resin waterproof sheet on the base of the support frame, the thermoplastic resin waterproof sheet and the support frame can be fixed to the base at the same time, reducing the number of members and man-hours. Can be reduced. In addition, since the base of the support base and the lower part of the bolt part are coated with thermoplastic resin, it can be heat-welded or solvent-welded to the base of the support base and the waterproof sheet with an additional tension sheet, and the bonding is strengthened and waterproof. Sufficient property can be secured. Furthermore, at the time of refurbishment, without removing the support stand, remove the holding tool, attach the waterproof sheet fixing bracket and fix the finish plate, and then lay the repaired thermoplastic resin waterproof sheet on the fixing bracket. Since it can be welded and the work of renovation work can be saved greatly, it can be widely used for rooftop waterproofing of buildings.

It is sectional drawing which shows [Embodiment 1] regarding the present invention. It is sectional drawing which shows [Embodiment 2] regarding this invention. It is a perspective view which shows one embodiment of the support stand of this invention. FIG. 4 is a plan view of FIG. 3. It is a perspective view which shows three embodiment of the finishing plate holder of this invention. FIG. 6 is a plan view of FIG. 5. It is a perspective view which shows three embodiment of the clamping tool of this invention. FIG. 8 is a plan view of FIG. 7. It is explanatory drawing of a support stand and an additional tension sheet construction. It is explanatory drawing of construction of [Embodiment 1]. It is a perspective view which shows one Embodiment of the waterproof sheet fixing metal fitting of this invention. It is a top view of FIG. It is explanatory drawing which shows the construction condition of a floor finish board. It is a top view which shows arrangement | positioning of a support stand.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Waterproof base sheet 2 Thermoplastic resin waterproof sheet 2 'Renovation thermoplastic resin waterproof sheet 3 Support frame 31 Base 311 Screw hole 312 Mount fixing screw 32 Bolt part 33 Covering resin layer 4 Double-sided adhesive tape 5 Reinforcement sheet 51 Reinforcement Hole in the approximate center of the sheet 52 Sealer 6 Finishing plate holder 61 Receiving portion 62 Female thread portion 7 Floor finish plate 8 Clamping device 81 Clamping portion 82 Male threaded portion 9 Waterproof sheet fixing bracket 91 Bracket fixing screw

Claims (2)

A waterproof sheet made of thermoplastic resin is laid on a waterproof base, and the base and the bolt part lower part are covered with the thermoplastic resin. The base is fixed to the waterproof base with the base fixing screws, and the thermoplastic resin waterproof sheet is fixed to the waterproof base.
Cover the pedestal of the support frame with the additional tension sheet, and weld the additional sheet, the thermoplastic resin waterproof sheet and the pedestal of the support frame,
A floating floor structure characterized in that a finish plate receiving member having an internal thread portion is screwed into a bolt portion of a support frame, and a floor finish plate is fixed by the finish plate receiving member and a holding tool.   At the time of renovation, the clamping tool is removed from the floating floor structure according to claim 1, and the waterproof sheet fixing bracket is fixed by screwing a metal fixing screw to the female thread portion of the finishing plate holder, and the waterproof sheet fixing bracket is used for the repair. A modified floating floor structure characterized by fixing a waterproof sheet made of thermoplastic resin.

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