JP2016130413A - Fixture and sheet waterproof structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fixture and a sheet waterproof structure in which a fixing screw screwed into a building frame hardly comes off even when it is exposed to strong wind.SOLUTION: A fixture 120 of the present invention is used for fixing a waterproof layer 110 constituted by a waterproof sheet 112 and a substrate layer 111 to a surface of a building frame 100, and includes a flat plate 122 having a through hole 121, a bottom portion 123 confronting the through hole 121 and having a screw 124, and a connecting portion 125 connecting the bottom portion 123 and the flat plate 122. The relation of 0.90≤X/Y≤1.00 is satisfied, wherein a length of the connecting portion 125 is X mm and a thickness of the substrate layer 111 is Y mm. The connecting portion 125 is formed so that the width is gradually decreased from the flat plate 122 to the bottom portion 123.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a fixture and a sheet waterproof structure.

  In many cases, a waterproof layer comprising a heat insulating layer and a waterproof sheet is laid on the roof of a factory, the roof of a building, etc. for waterproofing. FIG. 6 shows an example of a waterproof structure in which a waterproof layer is laid on the roof of a folded metal plate. Hereinafter, objects on which waterproof layers such as roofs, verandas, balconies and the like of buildings for business such as factories, buildings, school buildings, and residential buildings such as condominiums are laid are collectively referred to as a housing. In the waterproof structure shown in FIG. 6, a waterproof layer 24 including a heat insulating layer 22 and a waterproof sheet 23 covering the heat insulating layer 22 is laid on the housing 21. 6 shows only a part of the waterproof layer 24 obtained by cutting the waterproof layer 24 at a portion indicated by a two-dot chain line so that the overall shape of the casing 21 can be easily understood. The entire surface of the casing 21 is laid.

  In such a waterproof structure, as shown in FIG. 7, the waterproof layer 24 is fixed by using a fixture 51 in which a fixing screw 41 is inserted into an insertion hole 46 of the fixing plate 45. The heat insulating layer 22 is fixed to the housing 21 by screwing the fixing screw 41 through the heat insulating layer 22 and further screwed into the housing 21, and the waterproof sheet 23 is fixed to the waterproof sheet side of the fixing plate 45. The waterproof sheet 23 is adhered to the surface 52 of the housing 21 so as to be fixed to the housing 21.

  Such a conventional waterproof structure has a problem that the fixing screw screwed into the housing is removed by being exposed to a strong wind.

  In order to solve such a problem, a metal reinforcing plate is installed on the upper surface of the portion of the housing where the fixing screw is screwed, and the fixing screw is screwed and fixed to both the metal reinforcing plate and the housing through the heat insulating layer. A metal base roof structure is known (see, for example, Patent Document 1).

  However, even if the metal reinforcing plate is installed, the fixing screw that is screwed into the casing may come off due to exposure to strong wind.

JP 2006-233556 A

  An object of the present invention is to provide a fixture and a sheet waterproof structure in which a fixing screw screwed into a housing is difficult to be removed even when exposed to a strong wind.

Such an object is achieved by the present invention described in the following (1) to (4).
(1) A fixing tool for fixing a waterproof layer composed of a waterproof sheet and an underlayer to the surface of a casing,
A flat plate having a through hole;
A bottom provided with a threaded portion, provided to face the through hole;
A connecting portion for connecting the bottom portion and the flat plate,
A fixture satisfying a relationship of 0.90 ≦ X / Y ≦ 1.00, where the length of the connecting portion is X [mm] and the thickness of the base layer is Y [mm]. .

  (2) The fixture according to (1), wherein the connection portion is configured so that a width gradually decreases from the flat plate toward the bottom portion.

  (3) The said connection part is a fixing tool as described in said (1) or (2) by which the thread groove is provided in the outer wall surface.

(4) A sheet waterproof structure using the fixture according to any one of (1) to (3) above,
The housing, the base layer, the waterproof sheet, the fixture, and a fixing screw,
The fixing tool is fixed to the housing by the fixing screw through the screw portion in a state where the connecting portion penetrates the base layer.
The waterproof sheet structure according to claim 1, wherein a surface of the flat plate opposite to the connecting portion is joined to the waterproof sheet.

  ADVANTAGE OF THE INVENTION According to this invention, even if exposed to a strong wind, the fixing tool and sheet | seat waterproof structure with which the fixing screw screwed into the housing cannot be removed easily can be provided.

It is sectional drawing which shows suitable embodiment of the sheet | seat waterproof structure of this invention. It is a perspective view which shows suitable embodiment of the fixing tool of this invention. It is (a) longitudinal cross-sectional view and (b) cross-sectional view of the connection part of the fixing tool shown in FIG. It is a cross-sectional view of the connecting part of the fixture according to another embodiment. It is a longitudinal cross-sectional view of the connection part of the fixing tool which concerns on other embodiment. It is a perspective view which shows the conventional sheet | seat waterproof structure. It is sectional drawing which shows the conventional sheet | seat waterproof structure.

  Hereinafter, a fixing device and a sheet waterproof structure of the present invention will be described in detail based on preferred embodiments shown in the accompanying drawings.

1. FIG. 1 is a cross-sectional view showing a preferred embodiment of the waterproof seat structure of the present invention, FIG. 2 is a perspective view showing a preferred embodiment of the fastener of the present invention, and FIG. 2A is a longitudinal sectional view and FIG. 2B is a transverse sectional view of a connecting portion of the fixture shown in FIG.

  As shown in FIG. 1, the waterproof sheet structure 10 includes a housing 100, a waterproof layer 110 laid on the surface of the housing 100, a fixture 120 for fixing the waterproof layer 110, and a fixing screw 130. Have.

  In the present embodiment, a roof (structure) 100 such as a roof on which the waterproof sheet structure 10 is constructed will be described as an example.

The casing 100 is composed of a bent plate-like metal plate.
As shown in FIG. 1, the waterproof layer 110 laid on the surface of the housing 100 includes a heat insulating layer 111 that covers the surface of the housing 100 and a waterproof sheet 112 that covers the surface of the heat insulating layer (base layer) 111. Yes.

  The material of the heat insulating layer 111 is not particularly limited as long as it is a heat insulating material usually used for heat insulation of buildings, and examples thereof include expanded polystyrene, polyurethane foam, polyisocyanurate foam, phenol foam and the like.

  The heat insulating layer 111 is not particularly limited as long as it is disposed between the housing and the waterproof sheet and exhibits a heat insulating function. The heat insulating layer may be formed of only the heat insulating material as described above, or else, for example, on the heat insulating material as described above (between the heat insulating material and the fixing plate), for example, polyethylene. Insulating cloth sheets made of woven fabrics, fireproof sheets made of glass fiber, aluminum foil laminate sheets for pinhole inspection, etc., and as a walking board for the purpose of enabling walking of people, calcium silicate board, asbestos A high-rigidity board such as a slate board or lightweight cellular concrete board may be laid, and in this case, the above-mentioned heat insulating material and the insulating cloth sheet, fireproof sheet, and aluminum foil laminate laid thereon. A sheet, a highly rigid plate, etc. are heat insulation layers.

  The material of the waterproof sheet 112 is not particularly limited as long as it has waterproofness and weather resistance, and is usually used as a waterproof sheet for buildings. For example, polyvinyl chloride resin, polyolefin resin, ethylene vinyl acetate Examples thereof include soft synthetic resins such as copolymers, and synthetic rubber materials. Among these, as a material of the waterproof sheet 112, polyvinyl chloride resin is preferable in that it has excellent solvent weldability and heat-fusibility. The thickness of the waterproof sheet is not particularly limited and is appropriately selected as necessary.

  The fixture 120 is integrally formed, and includes a flat plate 122 provided with a through hole 121, a bottom portion 123 provided so as to face the through hole 121, and a through hole 121 at the center of the bottom portion 123. It has the screw part 124 provided so as to oppose, and the connection part 125 which connects the bottom part 123 and the screw part 124, and the flat plate 122.

  As shown in FIG. 2, the flat plate 122 has a perfect circle shape in a plan view, and its vertical cross-sectional shape has a rectangular shape. That is, the entire shape having a constant thickness from the center side toward the edge side forms a disk shape.

The flat plate 122 includes a through hole 121 at the center.
Although it does not restrict | limit especially as a material of the flat plate 122, For example, synthetic resins, such as metals, such as iron and stainless steel, a thermosetting resin, and a thermoplastic resin, etc. are mentioned.

  When the flat plate 122 is a metal plate such as a steel plate whose surface is coated with a synthetic resin, examples of the synthetic resin coated on the fixing plate include a polyvinyl chloride resin, a polyolefin-based resin, and an ethylene vinyl acetate copolymer. Examples include soft synthetic resins and synthetic rubber materials. Among these, as the synthetic resin coated on the fixing plate, polyvinyl chloride resin is preferable in that it is excellent in solvent weldability and heat fusion property.

The thickness of the flat plate 122 is not particularly limited, and is appropriately selected as necessary.
The flat plate 122 is disposed between the heat insulating layer 111 and the waterproof sheet 112.
The surface on the waterproof sheet side of the flat plate 122 is joined to the waterproof sheet 112.

  As a joining form of the waterproof sheet 112 side surface of the flat plate 122 and the waterproof sheet 112, for example, the surface of the flat plate 122 on the waterproof sheet 112 side is covered from the top of the waterproof sheet 112 while being covered with the waterproof sheet 112. When the waterproof sheet is placed on the surface of the flat sheet 122 on the waterproof sheet 112 side by heating the resin, the waterproof sheet 112 is coated with the resin coated on the surface of the flat sheet 122 on the waterproof sheet 112 side. By applying a solvent to the resin coated on the surface of the flat sheet 122 on the waterproof sheet 112 side, the waterproof sheet is formed by welding the resin coated on the surface of the flat sheet 122 on the waterproof sheet 112 side. When the sheet is placed on the surface of the waterproof sheet 112, the adhesive sheet is applied to the surface of the flat sheet 122 on the side of the waterproof sheet 112, so that the form bonded with the adhesive is given. It is.

The bottom 123 is provided to face the through hole 121.
In addition, a screw portion 124 through which the fixing screw 130 is inserted is provided at the center portion of the bottom portion 123. In the present embodiment, the bottom 123 is configured to come into contact with the housing 100.

  The connecting part 125 is configured to connect the edge part of the bottom part 123 and the edge part of the through hole 121. Thereby, the screw part 124 and the flat plate 122 are connected.

In this embodiment, as shown in FIGS. 1-3, the connection part 125 has comprised the cylinder shape.
When the length of the connecting portion 125 is X [mm] and the thickness of the heat insulating layer (underlayer) 111 is Y [mm], the relationship of 0.90 ≦ X / Y ≦ 1.00 is satisfied. By satisfying such a relationship, when the fixing tool 120 is fixed to the casing 100 with the fixing screw 130, the bottom 123 and the casing 100 are in contact with each other or almost in contact with each other. For this reason, it is possible to prevent the rolling of the fixture 120 around the screw portion 124. As a result, it is possible to prevent the fixing screw screwed into the housing from loosening and coming off even when exposed to strong winds.

  Note that when the length of the connecting portion 125 is X [mm] and the thickness of the heat insulating layer (underlayer) 111 is Y [mm], the relationship of 0.90 ≦ X / Y ≦ 1.00 is satisfied. More preferably, the relationship of 0.95 ≦ X / Y ≦ 1.00 is satisfied. Thereby, the effect of this invention becomes more remarkable.

  1-3, the connection part 125 is comprised so that a width | variety may reduce gradually toward the bottom part 123 from the flat plate 122. As shown in FIG. Thereby, the bottom part 123, the screw part 124, and the connection part 125 can be easily inserted in the heat insulation layer 111.

  The fixture 120 having the above-described configuration can be manufactured, for example, by pressing a synthetic resin-coated steel sheet whose surface is coated with a synthetic resin. In addition, the fixture 120 having the above-described configuration can be manufactured by molding a synthetic resin by an appropriate resin processing method such as injection molding.

  The fixing screw 130 includes a screw head having a circular planar shape, a shaft having a thread formed on a side surface, and a tip portion.

  In a state where the fixing screw 130 is inserted into the screw portion 124, the fixing screw 120 is screwed into the casing 100 and fixed, whereby the fixing tool 120 is fixed to the casing 100.

  After being fixed by the fixing screw 130, the through hole 121 may be filled with a filler such as an adhesive. Thereby, it is possible to more reliably prevent the fixing screw 130 from coming off.

  In the above description, the connecting portion 125 is cylindrical. However, the present invention is not limited to this. For example, the connecting portion 125 may be composed of a plurality of plate-like members extending from the edge of the through hole 121 to the edge of the bottom 123 as shown in FIG.

  In the above description, the connecting portion 125 has a flat surface, but a thread groove may be formed on the outer wall surface of the connecting portion 125 as shown in FIG. By setting it as such a structure, the connection part 125 can be screwed in into the heat insulation layer 111 more easily.

2. Construction method of waterproof sheet structure The waterproof sheet structure 10 as described above is constructed and constructed by, for example, the following method.

First, the heat insulating layer 111 is placed on the surface of the housing 100.
Next, the fixing tool 120 is installed at the installation location of the fixing tool 120 on the heat insulating layer 111 with the connecting portion 125 penetrating the heat insulating layer 111.

  Next, the heat insulating layer 22 is fixed to the casing 21 by the fixing tool 120 by screwing the fixing screw 130 into the casing 21 via the screw portion 124.

Next, the waterproof sheet 112 is placed so as to cover the heat insulating layer 111 and the fixture 120.
Next, the sheet waterproof structure 10 shown in FIG. 1 is constructed by bonding the waterproof sheet 112 side surface of the fixture 120 to the waterproof sheet 112.

  As mentioned above, although the fixing tool and sheet waterproofing structure of this invention were demonstrated, this invention is not limited to these.

  For example, in the waterproof sheet structure of the present invention, each component can be replaced with any component that can exhibit the same function, or any component can be added.

  Moreover, in the said embodiment, although the sheet | seat waterproof structure demonstrated as what has a heat insulation layer, as long as it functions as a base layer of a waterproof sheet, there may be no heat insulation function.

  In the above-described embodiment, the connecting portion is described as being configured so that the width gradually decreases toward the bottom portion, but may not be gradually decreased.

  In the above-described embodiment, the flat plate has been described as having a disk shape, but the present invention is not limited thereto, and may be a plate shape.

  In addition, one or two or more arbitrary steps may be added to the construction method of the waterproof sheet structure.

DESCRIPTION OF SYMBOLS 10 Sheet | seat waterproof structure 21 Housing 22 Heat insulation layer 23 Waterproof sheet 24 Waterproof layer 41 Fixing screw 45 Fixing plate 51 Fixing tool 52 Surface 100 Housing 110 Waterproof layer 111 Heat insulation layer (underlying layer)
112 Waterproof sheet 120 Fixing tool 121 Through hole 122 Flat plate 123 Bottom part 124 Screw part 125 Connecting part 130 Fixing screw

Claims (4)

A fixing tool for fixing a waterproof layer composed of a waterproof sheet and a base layer to the surface of the housing,
A flat plate having a through hole;
A bottom provided with a threaded portion, provided to face the through hole;
A connecting portion for connecting the bottom portion and the flat plate,
A fixture satisfying a relationship of 0.90 ≦ X / Y ≦ 1.00, where the length of the connecting portion is X [mm] and the thickness of the base layer is Y [mm]. .   The fixture according to claim 1, wherein the connecting portion is configured so that a width gradually decreases from the flat plate toward the bottom portion.   The said connection part is a fixing tool of Claim 1 or 2 by which the thread groove is provided in the outer wall surface. A sheet waterproof structure using the fixture according to any one of claims 1 to 3,
The housing, the base layer, the waterproof sheet, the fixture, and a fixing screw,
The fixing tool is fixed to the housing by the fixing screw through the screw portion in a state where the connecting portion penetrates the base layer.
The waterproof sheet structure according to claim 1, wherein a surface of the flat plate opposite to the connecting portion is joined to the waterproof sheet.

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