JP2019044580A - Fixture and sheet waterproof structure - Google Patents

Abstract

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, and includes a flat plate 121 having a first through hole 123, and an attachment member 122 for attaching the flat plate 121 to the building frame 100. The attachment member 122 includes a base portion 125 having a second through hole 126, a bottom portion 127 confronting the second through hole 126 and having a screw 128, and a connecting portion 129 connecting the bottom portion 127 and the base portion 125, and the attachment member 122 is used by inserting the connecting portion 129 into the first through hole 123. The relation of 0.90≤X/Y≤1.00 is satisfied, wherein a length of the connecting portion is X mm and a thickness of the substrate layer is Y mm.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. 9 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. 9, 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. In FIG. 9, 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 is illustrated so that the overall shape of the housing 21 is easily understood. The entire surface of the casing 21 is laid.

  In such a waterproof structure, as shown in FIG. 10, 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 first through hole;
An attachment member for attaching the flat plate to the housing,
The mounting member includes a base having a second through hole;
A bottom portion provided to face the second through hole and having a screw portion;
A connecting portion for connecting the bottom portion and the base portion,
The mounting member is used by inserting the connecting portion through the first through hole,
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 perspective view which shows the flat plate with which the fixing tool shown in FIG. 2 is provided. It is a perspective view which shows the attachment member with which the fixing tool shown in FIG. 2 is provided. It is a fragmentary longitudinal cross-sectional view of the fixing tool shown in FIG. It is a cross-sectional view of the connection part of the attachment member with which the fixing tool shown in FIG. 2 is provided. It is a cross-sectional view of the connection part of the attachment member with which the fixing tool which concerns on other embodiment is provided. It is a longitudinal cross-sectional view of the attachment member with which the fixing tool which concerns on other embodiment is provided. 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. 2 is a perspective view showing a flat plate provided in the fixture shown in FIG. 2, FIG. 4 is a perspective view showing an attachment member provided in the fixture shown in FIG. 2, FIG. 5 is a partial longitudinal sectional view of the fixture shown in FIG. These are the cross-sectional views of the connection part of the attachment member with which the fixing tool shown in FIG. 2 is provided.

  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 112 is not particularly limited, and is appropriately selected as necessary.

  As shown in FIG. 2, the fixture 120 has a flat plate 121 and an attachment member 122 for attaching the flat plate 121 to the housing 100.

The flat plate 121 has a disk shape as shown in FIG.
In addition, a first through hole 123 is provided in the central portion of the flat plate 121. A connecting portion 129 of a mounting member 122 described later is inserted through the first through hole 123.

  Further, as shown in FIG. 3, the flat plate 121 is provided with a step 124 formed around the first through hole 123. The step 124 is configured to be recessed from the outer edge side of the flat plate 121 toward the center. The step 124 has a depth substantially equal to the thickness of a base 125 of the mounting member 122 described later. Further, the shape of the step 124 in plan view is substantially the same as the shape of the base portion 125 of the mounting member 122 described later in plan view.

  Although it does not restrict | limit especially as a material of the flat plate 121, 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 121 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, a polyvinyl chloride resin is preferable in that it has excellent solvent weldability and heat fusion property.

The thickness of the flat plate 121 is not particularly limited and is appropriately selected as necessary.
The flat plate 121 is disposed between the heat insulating layer 111 and the waterproof sheet 112.
The waterproof sheet side surface of the flat plate 121 is joined to the waterproof sheet 112.

  As a joining form of the surface of the flat sheet 121 on the waterproof sheet 112 side and the waterproof sheet 112, for example, the surface of the flat sheet 121 on the surface of the flat sheet 121 on the waterproof sheet 112 side is covered with the waterproof sheet 112 covered. When the waterproof sheet is placed on the surface of the flat sheet 121 on the waterproof sheet 112 side by heating the resin, the form fused with the resin coated on the surface of the flat sheet 121 on the waterproof sheet 112 side By applying a solvent to the resin coated on the surface of the flat sheet 121 on the waterproof sheet 112 side, the waterproof sheet is formed by welding the resin coated on the surface of the flat sheet 121 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 121 on the waterproof sheet 112 side so that the form is adhered with the adhesive. It is.

The attachment member 122 is a member for attaching the flat plate 121 to the housing 100.
The mounting member 122 is provided so as to face the base 125 having the second through-hole 126, the bottom 127 having the screw part 128, and the connecting portion 129 that connects the bottom 127 and the base 125. And have.

  As shown in FIG. 4, the base 125 has a disk shape and has a second through hole 126 at the center.

The bottom 127 is provided to face the second through hole 126.
In addition, a screw portion 128 through which the fixing screw 130 is inserted is provided at the center portion of the bottom portion 127. In the present embodiment, the bottom 127 is configured to come into contact with the housing 100.

  The connecting portion 129 is configured to connect the edge portion of the bottom portion 127 and the edge portion of the second through hole 126. Thereby, the bottom part 127 and the base part 125 are connected.

In the present embodiment, as shown in FIGS. 4 to 6, the connecting portion 129 has a cylindrical shape.
When the length of the connecting portion 129 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 housing 100 with the fixing screw 130, the bottom portion 127 and the housing 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 128. 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 129 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 129 is comprised so that a width | variety may reduce gradually toward the bottom part 127 from the base 125. As shown in FIG. Thereby, the bottom part 127, the screw part 128, and the connection part 129 can be easily inserted through the heat insulating layer 111.

  As shown in FIG. 5, the attachment member 122 is used by inserting the connecting portion 129 into the first through hole 123 of the flat plate 121. At this time, the base 125 of the mounting member 122 is configured to be fitted with a recess inside the step 124. Further, in the fitted state, the upper surface of the flat plate 121 and the upper surface of the base portion 125 are configured to be flush with each other by the step 124.

  Each member which comprises the fixing tool 120 of the above structures can be produced by, for example, pressing a synthetic resin-coated steel sheet whose surface is coated with a synthetic resin. Moreover, each member which comprises the fixing tool 120 of the above structures can be produced by, for example, 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 128, the fixing screw 130 is screwed and fixed to the casing 100, whereby the fixing tool 120 is fixed to the casing 100.

  After being fixed by the fixing screw 130, the through hole 123 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 129 has a cylindrical shape, but is not limited thereto. For example, as shown in FIG. 7, the connecting portion 129 may be composed of a plurality of plate-like members extending from the edge portion of the second through hole 126 to the edge portion of the bottom portion 127.

  In the above description, the connecting portion 129 has a flat surface. However, as shown in FIG. 8, a thread groove may be formed on the outer wall surface of the connecting portion 129. With such a configuration, the connecting portion 129 can be more easily screwed into the heat insulating layer 111.

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 flat plate 121 is installed at the installation location of the fixture 120 on the heat insulating layer 111.

  Next, the fixing member 120 is installed by inserting the connecting portion 129 of the attachment member 122 into the first through hole 123 of the flat plate 121 and penetrating the heat insulating layer 111.

  Next, the heat insulating layer 111 is fixed to the casing 100 by the fixing tool 120 by screwing the fixing screw 130 into the casing 21 via the screw portion 128.

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 (underlayer)
112 waterproof sheet 120 fixture 121 flat plate 122 mounting member 123 first through hole 124 step 125 base 126 second through hole 127 bottom 128 screw part 129 connecting part 130 fixing screw

Such an object is achieved by the present invention described in the following (1) to ( 3 ).
(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 first through hole;
An attachment member for attaching the flat plate to the housing,
The mounting member includes a base having a second through hole;
A bottom portion provided to face the second through hole and having a screw portion;
A connecting portion for connecting the bottom portion and the base portion,
The mounting member is used by inserting the connecting portion through the first through hole,
The connecting portion is composed of a plurality of plate-like members extending from the edge of the second through hole to the edge of the bottom,
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]. .

( 3 ) A sheet waterproof structure using the fixture according to (1) or (2 ) 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.

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 first through hole;
An attachment member for attaching the flat plate to the housing,
The mounting member includes a base having a second through hole;
A bottom portion provided to face the second through hole and having a screw portion;
A connecting portion for connecting the bottom portion and the base portion,
The mounting member is used by inserting the connecting portion through the first through hole,
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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