JP2010048043A - Waterproof sheet fixing structure, and waterproof sheet fixing method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enhance the reliability of the fixture of a waterproof sheet while suppressing the complication of the fixing work of the waterproof sheet. <P>SOLUTION: An overhanging section 220 of a reinforcing sheet 200 overhanging from an outer peripheral section 150E of a fixing member 150 are bonded to the waterproof sheet 100, and therefore, a concentration of a peeling force acting on the outer peripheral section 150E of the fixing member 150 when the waterproof sheet 100 is blown by negative pressure caused by a strong wind such as a storm is suppressed. As a result, the waterproof sheet 100 is prevented and suppressed from being separated from the fixing member 150 and from being ruptured starting from the outer peripheral section 150E of the fixing member 150. That is, the reliability of the waterproof sheet 100 is improved. Because the fixing member 150 and the reinforcing sheet 200 are bonded to the waterproof sheet 100 after the waterproof sheet 100 is covered, the work is drastically facilitated. Thus, the reliability of mechanical fixture of the waterproof sheet 100 is improved while suppressing the complication of the fixing work of the waterproof sheet 100. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a waterproof sheet fixing structure and a waterproof sheet fixing method.

  Examples of the waterproof sheet provided on the roof of a building include a vulcanized sheet, a non-vulcanized sheet, and a resin-based sheet such as vinyl chloride or a thermoplastic elastomer. For such a waterproof sheet, an adhesive method for bonding the entire surface to the base or a mechanical fixing method for fixing using a fixing bracket are known.

For the mechanical fixing method, the fixing bracket is fixed with screws or bolts from the top of the sheet joint where the ends of the waterproof sheet are bonded together, and the disk-shaped fixing bracket is fixed with screws or bolts on the base. In addition, there is a construction method in which a waterproof sheet is put on the adhesive member and adhered to the fixing member (for example, see Patent Document 1, Patent Document 2, and Patent Document 3).
Patent 2521601 Japanese Patent No. 2674610 Japanese Patent No. 2683457

  9 shows a waterproof sheet fixing structure to which the present invention is not applied, and FIGS. 8A to 8D show a waterproof sheet fixing method to which the present invention is not applied. ing.

  As shown in FIG. 8A, the fixing bracket 850 is placed on the base 700 on the roof, and the fixing bracket 850 is fixed to the base 700 with the fixing screw 880 as shown in FIG. 8B. As shown in FIG. 8C, a waterproof sheet 800 wound in a roll shape is laid. Then, as shown in FIG. 8D, a columnar electromagnetic induction heating device 830 is pressed against the fixing bracket 850 from above the waterproof sheet 800, and the fixing bracket 850 is heated by electromagnetic induction. As a result, the resin layer on the surface of the fixing bracket 850 is melted, and the waterproof sheet 800 and the surface of the fixing bracket 850 are bonded to each other with a pressing force (pressing) that presses the electromagnetic induction heating device 830.

  In this way, as shown in FIG. 9, the waterproof sheet 800 is bonded and fixed to the surface of the fixing bracket 850.

  Here, from the viewpoint of the waterproof function, as shown in FIGS. 8 and 9, a mechanical fixing structure (mechanical fixing method) in which the waterproof sheet 800 is put on and bonded to the fixing bracket 850 is a waterproof sheet 800. It is said that it is excellent because it does not make holes. However, when the waterproof sheet 800 is blown up by a negative pressure or the like generated by a strong wind such as a typhoon, peeling stress concentrates on the outer edge portion 850E of the fixing bracket 850, and the waterproof sheet 800 peels off from the fixing bracket 850 or the outer edge of the fixing bracket 850 There was a fear of tearing starting from the part 850E. Therefore, it is required to improve the reliability of fixing the waterproof sheet.

  Further, it is required to perform the fixing work (construction) of the waterproof sheet as easily as possible.

  An object of the present invention is to improve the reliability of fixing a waterproof sheet while suppressing the complexity of fixing the waterproof sheet in consideration of the above facts.

  The invention according to claim 1 is a reinforcement having a plate-like fixture fixed to a base by a fixing means, and an overhanging portion sandwiched between the fixture and the base and protruding from an outer edge portion of the fixture. By the sheet, the waterproof sheet covering the base, the fixture, and the reinforcing sheet, and the waterproof sheet is pressed by the action from the top of the waterproof sheet, the waterproof sheet is pressed, Fixing tool bonding means for bonding the surface of the fixing tool and the waterproof sheet, and an adhesive function is expressed by an operation from above the waterproof sheet, and the waterproof sheet is pressed, so that at least the reinforcing sheet Reinforcing sheet adhering means for adhering the overhang portion and the waterproof sheet.

  Therefore, since the protruding portion of the reinforcing sheet that protrudes from the outer edge of the fixture is bonded to the waterproof sheet, when the waterproof sheet is blown up by negative pressure generated by strong wind such as typhoon, the outer edge of the fixture Concentration of the peeling stress acting on the part is suppressed. As a result, the waterproof sheet is prevented or suppressed from being peeled off from the fixture or torn from the outer edge of the fixture. That is, the reliability of fixing the waterproof sheet is improved.

  At this time, a tensile force is generated in the overhanging portion of the reinforcing sheet bonded to the waterproof sheet, but usually the tensile bonding strength is much stronger than the peel adhesive strength. There is a very low possibility that the adhesive will peel off.

  Furthermore, after covering the base, the fixing tool, and the reinforcing sheet with a waterproof sheet, the adhesive function is exerted and pressed by the operation from the top of the waterproof sheet, and the surface of the fixing tool (Omenen) and At least the protruding portion of the reinforcing sheet is bonded to the waterproof sheet.

  Here, for example, when applying adhesive to a reinforcing sheet or fixture before covering the waterproof sheet, carefully position the waterproof sheet so that it does not wrinkle while positioning the waterproof sheet while covering the prevention sheet. It is necessary to adhere to the tool and the reinforcing sheet sequentially. Therefore, fixing work (enforcement) of the waterproof sheet is very complicated and time-consuming.

  In contrast, according to the present invention, after the waterproof sheet is applied, the prevention sheet can be bonded after being positioned and wrinkled, so that the work is much easier.

  Thus, it is possible to improve the reliability of fixing the waterproof sheet while suppressing the work of fixing the waterproof sheet from being complicated.

  According to a second aspect of the present invention, in the waterproof sheet fixing structure according to the first aspect, the fixing device is made of a resin including at least a metal film having a resin film formed on a surface thereof or a magnetic body, and the fixing device. The bonding means is a metal fitting or magnetic body of the fixture, and a resin, and the resin is dissolved by the electromagnetic induction heating of the metal fitting or magnetic body of the fixture, and an adhesion function is exhibited.

  Therefore, the resin of the fixture is dissolved by electromagnetic induction heating of the fixture from above the waterproof sheet, and the surface of the fixture and the waterproof sheet are bonded by pressing the prevention sheet. Fixing work is easy.

  According to a third aspect of the present invention, there is provided the waterproof sheet fixing structure according to the first aspect, wherein the fixing device bonding means is a microcapsule coated on the surface of the fixing device and encapsulating an adhesive, and the waterproof sheet. When the microcapsule is pressed from above, the microcapsule is broken, the adhesive flows out, and an adhesive function is exhibited.

  Therefore, when the waterproof sheet is pressed, the microcapsule is broken and the adhesive is flowed out, and the surface of the fixture and the waterproof sheet are bonded together, so that the waterproof sheet can be easily fixed.

  According to a fourth aspect of the present invention, in the waterproof sheet fixing structure according to any one of the first to third aspects, the reinforcing sheet is made of a resin containing a magnetic material, and the reinforcing sheet bonding means Are made of a magnetic material and a resin constituting the reinforcing sheet, and the magnetic material of the reinforcing sheet is heated by electromagnetic induction to dissolve the resin and develop an adhesive function.

  Therefore, the resin component of the reinforcing sheet is dissolved by electromagnetic induction heating of the reinforcing sheet from above the waterproof sheet, and the reinforcing sheet and the waterproof sheet are bonded by pressing the prevention sheet. Is easy.

  According to a fifth aspect of the present invention, in the waterproof sheet fixing structure according to any one of the first to third aspects, the reinforcing sheet bonding means is applied to at least an overhang portion of the reinforcing sheet, The microcapsule is encapsulated, and the microcapsule is pressed from above the waterproof sheet, whereby the microcapsule is broken and the adhesive flows out, and an adhesive function is exhibited.

  Therefore, by pressing the overhanging portion of the reinforcing sheet from above the waterproof sheet, the microcapsule is broken and the adhesive is flowed out to bond the reinforcing sheet and the waterproof sheet, so that the fixing work of the waterproof sheet is easy. .

  According to a sixth aspect of the present invention, in the waterproof sheet fixing structure according to the first aspect, the waterproof sheet is made of a resin containing a magnetic material, and at least one of the fixing member bonding means and the reinforcing sheet bonding means. Is made of a magnetic material and a resin constituting the waterproof sheet, and the magnetic material of the waterproof sheet is heated by electromagnetic induction, whereby the resin is dissolved and an adhesive function is exhibited.

  Accordingly, the resin component of the waterproof sheet is dissolved by electromagnetic induction heating of the waterproof sheet, and the waterproof sheet is bonded to at least one of the fixture and the reinforcing sheet by pressing the prevention sheet. Fixing work is easy.

  According to a seventh aspect of the present invention, in the waterproof sheet fixing structure according to any one of the first to sixth aspects, the back surface of the fixture is bonded to the reinforcing sheet.

  Therefore, the reinforcing sheet and the back surface of the fixture are bonded together, and the reinforcing sheet and the fixture are integrated. Therefore, the peeling stress which acts on the outer edge portion of the fixture is further suppressed, and as a result, the reliability of fixing the waterproof sheet is further improved.

  In the invention according to claim 8, the plate-like fixture is fixed to the base by a fixing means with a reinforcing sheet sandwiched therebetween so that the protruding portion protrudes from the outer edge portion of the fixture, and then the base and the fixing And a waterproof sheet covering step of covering the reinforcing sheet with a waterproof sheet, and an adhesive function is exhibited by an operation from above the waterproof sheet, and the waterproof sheet is pressed against the fixture, thereby fixing the fixture. A fixing tool bonding step for bonding the surface of the waterproof sheet and the waterproof sheet, and by exerting an adhesive function by an operation from above the waterproof sheet and pressing the waterproof sheet against the protruding portion of the reinforcing sheet, A reinforcing sheet bonding step for bonding the protruding portion of the reinforcing sheet and the waterproof sheet.

  Therefore, since the overhanging portion of the reinforcing sheet that protrudes around the fixture is adhered to the waterproof sheet, when the waterproof sheet is blown up by negative pressure generated by strong winds such as typhoons, the outer edge portion of the fixture The peeling stress in is suppressed. As a result, peeling from the fixture or tearing from the end of the fixture is prevented or suppressed. That is, the reliability of fixing the waterproof sheet is improved.

  Furthermore, after covering the base, the fixing tool, and the reinforcing sheet with the waterproof sheet, the adhesive sheet is bonded to the surface of the fixing tool by exerting an adhesive function and pressing it by the operation from the top of the waterproof sheet. Similarly, the overhanging portion of the reinforcing sheet and the waterproof sheet are bonded by causing the adhesive sheet to exhibit an adhesive function by pressing the waterproof sheet and pressing it.

  Therefore, it is possible to improve the reliability of fixing the waterproof sheet while suppressing the fixing work of the waterproof sheet from being complicated.

  In addition, although it is necessary to perform a fixing tool adhesion | attachment process and a reinforcement sheet | seat adhesion process after a waterproof sheet coating | covering process, whichever may be the order of a fixing tool adhesion process and a reinforcement sheet adhesion process.

  According to a ninth aspect of the present invention, in the waterproof sheet fixing method according to the eighth aspect, the fixture is made of a metal member having a resin film formed on at least a surface or a resin containing a magnetic material, and the fixture. In the bonding step, the metal fitting or the magnetic body of the fixture is heated by electromagnetic induction to dissolve the resin and develop the bonding function.

  Therefore, the resin of the fixture is dissolved by electromagnetic induction heating of the fixture from above the waterproof sheet, and the surface of the fixture and the waterproof sheet are bonded by pressing the prevention sheet. Work is easy.

  A tenth aspect of the present invention is the waterproof sheet fixing method according to the ninth aspect, wherein the fixing device is made of a metal member having a resin film formed on both surfaces or a resin containing a magnetic material, and is bonded to the fixing device. In the step, resin is dissolved by electromagnetic induction heating of the metal fitting or magnetic body of the fixture, and the waterproof sheet is pressed against the fixture, thereby bonding the surface of the fixture and the waterproof sheet, and The back surface of the fixture is bonded to the reinforcing sheet.

  Therefore, working efficiency improves compared with the case where it adhere | attaches separately by performing adhesion | attachment with the surface of a fixing tool, and a waterproof sheet, and adhesion | attachment with the back surface of a fixing tool, and a reinforcement sheet | seat.

  According to an eleventh aspect of the present invention, in the waterproof sheet fixing method according to the eighth aspect, in the waterproof sheet coating step, before covering the waterproof sheet, a microcapsule containing an adhesive is applied to the fixture. In the reinforcing sheet adhering step, the microcapsule is pressed from above the waterproof sheet to break the microcapsule and cause the adhesive to flow out to develop an adhesive function.

  Therefore, when the waterproof sheet is pressed, the microcapsule is broken and the adhesive is flown out, and the overhanging portion of the reinforcing sheet and the waterproof sheet are bonded to each other, so that the fixing work of the waterproof sheet is easy.

  The invention of claim 12 is the waterproof sheet fixing method according to any one of claims 8 to 11, wherein the reinforcing sheet is made of a resin containing a magnetic material, and the reinforcing sheet bonding step is performed. Then, the magnetic material of the reinforcing sheet is heated by electromagnetic induction to dissolve the resin and develop an adhesive function.

  Therefore, the resin component of the reinforcing sheet is dissolved by electromagnetic induction heating of the reinforcing sheet from above the waterproof sheet, and the reinforcing sheet and the waterproof sheet are bonded by pressing the prevention sheet. Is easy.

  The invention of claim 13 is the waterproof sheet fixing method according to claim 8, wherein, in the waterproof sheet coating step, before covering the waterproof sheet, a microcapsule containing an adhesive is placed on at least the reinforcing sheet. It applies to an overhang | projection part, In the said reinforcement sheet | seat adhesion | attachment process, the said microcapsule is pressed from on the said waterproof sheet, the said microcapsule is broken, an adhesive agent is flowed out, The adhesive function is expressed. The fixing method of the waterproof sheet according to any one of 11.

  Therefore, by pressing the overhanging portion of the reinforcing sheet from above the waterproof sheet, the microcapsule is broken and the adhesive is flown out to bond the reinforcing sheet and the waterproof sheet, so that the fixing operation is easy.

  According to a fourteenth aspect of the present invention, the waterproof sheet is made of a resin containing a magnetic material, and the magnetic material of the waterproof sheet is subjected to electromagnetic induction heating in at least one of the fixing member bonding step and the reinforcing sheet bonding step. The resin is dissolved to develop the adhesive function.

  Accordingly, the resin component of the waterproof sheet is dissolved by electromagnetic induction heating of the waterproof sheet, and the waterproof sheet is bonded to at least one of the fixture and the reinforcing sheet by pressing the prevention sheet. Fixing work is easy.

  According to the first aspect of the present invention, it is possible to improve the fixing reliability of the waterproof sheet while suppressing the complicated operation of fixing the waterproof sheet.

  According to the invention of claim 2, since the surface of the fixing tool and the waterproof sheet can be bonded by electromagnetic induction heating and pressing the waterproof sheet on the waterproof sheet, the fixing work of the waterproof sheet is possible. Is easy.

  According to the invention of claim 3, since the surface of the fixture and the waterproof sheet can be bonded by pressing the waterproof sheet, the fixing work of the waterproof sheet is easy.

  According to the invention of claim 4, since the reinforcing sheet and the waterproof sheet can be bonded by electromagnetic induction heating the reinforcing sheet from above the waterproof sheet and pressing the prevention sheet, the fixing work of the waterproof sheet can be performed. Easy.

  According to the invention of claim 5, since the reinforcing sheet and the waterproof sheet can be bonded by pressing the protruding portion of the reinforcing sheet from above the waterproof sheet, the fixing work of the waterproof sheet is easy.

  According to the invention of claim 6, since the waterproof sheet can be bonded to at least one of the fixing tool and the reinforcing sheet by electromagnetic induction heating and pressing the waterproof sheet, the fixing work of the waterproof sheet is easy. It is.

  According to invention of Claim 7, the peeling stress which acts on the outer edge part of a fixing tool is suppressed more, As a result, the reliability of fixation of a waterproof sheet can further be improved.

  According to the eighth aspect of the invention, it is possible to improve the reliability of fixing the waterproof sheet while suppressing the complicated operation of fixing the waterproof sheet.

  According to the ninth aspect of the present invention, the surface of the fixing tool and the waterproof sheet can be bonded by electromagnetic induction heating of the fixing tool from above the waterproof sheet and pressing the prevention sheet. Work is easy.

  According to the invention of claim 10, the work efficiency is compared with the case of bonding separately by simultaneously bonding the surface of the fixture and the waterproof sheet and bonding the back surface of the fixture and the reinforcing sheet. Can be improved.

  According to the eleventh aspect of the present invention, since the overhanging portion of the reinforcing sheet and the waterproof sheet can be bonded by pressing the waterproof sheet, the fixing work of the waterproof sheet is easy.

  According to the invention of claim 12, since the reinforcing sheet and the waterproof sheet can be adhered by electromagnetically heating the reinforcing sheet from above the waterproof sheet and pressing the prevention sheet, the fixing work of the waterproof sheet can be performed. Easy.

  According to the thirteenth aspect of the present invention, the reinforcing sheet and the waterproof sheet can be bonded by pressing the protruding portion of the reinforcing sheet from above the waterproof sheet, so that the fixing work is easy.

  According to the fourteenth aspect of the present invention, the waterproof sheet can be bonded to at least one of the fixture and the reinforcing sheet by electromagnetically heating and pressing the waterproof sheet, so that the waterproof sheet can be easily fixed. It is.

  A first embodiment of a waterproof sheet fixing structure according to the present invention will be described with reference to FIGS. 1 and 2. FIG. 1 is a partial cross-sectional perspective view showing a rooftop portion of a building to which a waterproof sheet fixing structure is applied. FIG. 2 is a longitudinal sectional view showing a mechanical fixing structure of the waterproof sheet along the line AA in FIG.

  As shown in FIG. 1, the periphery of a roof slab (land roof) 12 on the roof portion of a building 10 is surrounded by a parapet 16 formed so as to rise from a frame wall 14. On the roof slab 12, a plate-like heat insulating material 50 is spread as a base.

  A plurality of waterproof sheets 100 are spread on the roof portion of the building 10 to be waterproof. In this embodiment, the waterproof sheet 100 uses a fiber reinforced fluororesin sheet. As the waterproof sheet, for example, Japanese Patent No. 3859144 can be used. In addition, when distinguishing the waterproof sheet 100, it attaches | subjects and distinguishes by A, B, and C after a code | symbol.

  An L-shaped SUS stopper 52 is attached to the end of the heat insulating material 50. One surface 52A of the SUS stopper 52 is sandwiched between the parapet 16 and the end surface of the heat insulating material 50, and the other surface 52B covers the upper surface of the heat insulating material 50.

  A waterproof sheet 100A is stretched so as to cover the parapet 16. One end of the waterproof sheet 100A is overlapped with an end of the stretched waterproof sheet 100B on the heat insulating material 50, and the other surface of the SUS stopper 52 is further overlapped. It is bonded and fixed to 52B by heat welding. Moreover, the headboard 20 is attached to the top part (upper part) of the parapet 16 from above the waterproof sheet 100A.

  As shown in FIGS. 1 and 2, a SUS disk-shaped fixing bracket (IH disk) 150 is fixed on the heat insulating material 50. A resin reinforcing sheet 200 is sandwiched between the fixing metal 150 and the heat insulating material 50. The reinforcing sheet 200 has a circular shape in plan view and has a diameter larger than that of the fixing bracket 150. And it is being fixed on the heat insulating material 50 so that the circle center of the reinforcement sheet 200 and the fixing metal 150 may correspond substantially. Therefore, the outer peripheral portion of the reinforcing sheet 200 protrudes from the outer edge portion 150E of the fixing metal 150, and this protruding portion is referred to as an overhang portion 220.

  The fixing bracket 150 has a through-hole 152 (see FIGS. 2 and 3-1) penetrating in the vertical direction at the center of the circle. The fixing fitting 150 is fixed to the heat insulating material 50 by inserting a fixing screw (screw nail) 180 into the through hole 152 and screwing it into the heat insulating material 50. In other words, the fixing bracket 150 is fixed to the heat insulating material 50 by the fixing screw 180 with the reinforcing sheet 200 interposed therebetween. Note that the opening of the through hole 152 of the fixing bracket 150 is recessed, so that the head 182 of the fixing screw 180 does not protrude from the upper surface 150A of the fixing bracket 150 (see FIG. 2).

  Further, the fixing bracket 150 (and the reinforcing sheet 200) are fixed to the heat insulating material 50 with predetermined intervals in the vertical and horizontal directions (see FIG. 1).

  The fixing metal fitting 150 is formed with a resin layer (not shown) on the front surface 150A (see FIG. 2) and the back surface (back noodle) 150B (see FIG. 2) (the whole is covered with resin). ing).

  In the present embodiment, the back surface 150A of the fixing metal 150 and the reinforcing sheet 200 are bonded with an adhesive. Note that the back surface 150B of the fixture 150 and the reinforcing sheet 200 may be of any bonding method. For example, a solvent may be applied to the back surface 150B of the fixing metal 150, and the resin on the back surface 150B may be melted and bonded.

  In addition, the back surface 150B of the fixing bracket 150 and the reinforcing sheet 200 do not necessarily have to be bonded. When the back surface 150B of the fixing metal 150 and the reinforcing sheet 200 are not bonded, the resin layer may not be formed on the back surface 150B of the fixing metal 150. In other words, it is only necessary that a resin layer be formed on at least the surface 150A of the fixture 150.

  The waterproof sheet 100 is covered on the heat insulating material 50, the fixing bracket 150, and the reinforcing sheet 200 (the overhang portion 220) (see FIG. 1). The waterproof sheet 100 and the surface 150A (see FIG. 2) of the fixing metal 150 are bonded by heat welding by electromagnetic induction heating the fixing metal 150, melting the resin layer on the surface 150A and pressing the waterproof sheet 100. .

  Further, before the waterproof sheet 100 is put on, a microcapsule 250 (see FIG. 3C) in which an adhesive (pressure-sensitive adhesive) is encapsulated is applied to the overhanging portion 220 of the reinforcing sheet 200 to be waterproof. By pressing the sheet 100, the microcapsule 250 (see FIG. 3-2 (C)) is broken and the adhesive main agent flows out, and the overhanging portion 220 of the reinforcing sheet 200 and the waterproof sheet 100 are bonded.

  In addition, as shown in FIG. 1, the edge parts of the some waterproof sheet 100 (refer waterproof sheet 100B and the waterproof sheet 100C) are piled up and adhere | attached, and it is adhere | attached by heat welding in this embodiment.

  Next, a construction method (mechanical fixing method of the waterproof sheet) of the waterproof sheet mechanical fixing structure of the present embodiment will be described with reference to FIGS. 3-1 to 3-3 and FIG.

  In addition, FIGS. 3-1 to 3-3 schematically illustrate the construction method of the mechanical fixing structure of the waterproof sheet (mechanical fixing method of the waterproof sheet) in order from (A) to (F). It is explanatory drawing. FIG. 4 is a longitudinal sectional view schematically showing a state before the waterproof sheet 100 is bonded to the fixture 150 and the reinforcing sheet 200. Moreover, in FIGS. 3-1 to 3-3, the width of the waterproof sheet 100 is shown narrower than actual.

  As illustrated in FIG. 3A, the reinforcing sheet 200 is bonded to the back surface 150B of the fixing bracket 150. In this embodiment, it adhere | attaches with the adhesive agent. At this time, the fixing metal 150 is overlapped and bonded so that the circle center (through hole 152) and the circle center X of the reinforcing sheet 200 substantially coincide with each other. As described above, the fixing metal 150 and the reinforcing sheet 200 may be bonded by any method.

  As shown in FIG. 3B, the fixing bracket 150 having the reinforcing sheet 200 bonded to the back surface 150 </ b> B is placed on the heat insulating material 50, and the fixing screw 180 is inserted into the through hole 152 of the fixing metal 150. The fixing bracket 150 is fixed to the heat insulating material 50 by being screwed into 50 (the solid metal fitting 150 is fixed to the heat insulating material 50 with the reinforcing sheet 200 interposed therebetween). Note that the fixing metal fittings 150 are all fixed to the heat insulating material 50 at predetermined intervals in the vertical and horizontal directions (see FIG. 1).

  Note that, as described above, the back surface 150B of the fixing bracket 150 and the reinforcing sheet 200 are not necessarily bonded. When the back surface 150B of the fixing metal 150 and the reinforcing sheet 200 are not bonded, the reinforcing sheet 200 is simply sandwiched between the solid metal 150 and the heat insulating material 50.

  As shown in FIG. 3-2 (C), the microcapsule 250 including the adhesive main agent is applied to the overhanging portion 220 protruding from the outer edge portion 150E of the fixing bracket 150 of the reinforcing sheet 200 using a brush 260 or the like. To do.

  As shown in FIG. 3-2 (D), a waterproof sheet 100 wound in a roll shape is laid. At this time, the fixing metal 150, the reinforcing sheet 200, and the waterproof sheet 100 are not bonded (see FIG. 4). Therefore, it is possible to correct misalignment or remove wrinkles of the waterproof sheet 100.

  In addition, the work process of FIGS. 3-1 (A) -FIG. 3-2 (D) demonstrated so far is corresponded to a waterproof sheet coating process.

  Next, as shown in FIG. 3E, the fixing bracket 150 is heated by electromagnetic induction while the cylindrical electromagnetic induction heating device 300 is pressed against the fixing bracket 150 from above the waterproof sheet 100 (FIG. 4). See also). As a result, the resin layer on the surface 150A of the fixing metal 150 is melted, and the waterproof sheet 100 and the surface 150A of the fixing metal 150 are bonded to each other with a pressing force (pressing) that presses the electromagnetic induction heating device 300. The work process of FIG. 3-3 (E) corresponds to a fixing tool bonding process.

  As shown in FIG. 3F, the protruding portion 220 of the reinforcing sheet 200 is pressed by the roller 320 from above the waterproof sheet 100. Thereby, the microcapsule 250 (see FIG. 3C) breaks and the adhesive main agent flows out and is pressed by the roller 320, whereby the overhanging portion 220 of the reinforcing sheet 200 and the waterproof sheet 100 are bonded. . The work process of FIG. 3-3 (F) corresponds to a reinforcing sheet bonding process.

  In addition, the work of the fixing tool bonding step of FIG. 3-3 (E) and the reinforcing sheet bonding step of FIG. 3-3 (F) is sequentially performed on each fixing bracket 150 and each waterproof sheet 200. As shown in FIGS. 1 and 2, the waterproof sheet 100 is fixed by bonding all the fixing brackets 150 and the waterproof sheets 20 and the waterproof sheet 100. Note that the order of the fixing tool bonding step in FIG. 3-3 (E) and the reinforcing sheet bonding step in FIG. 3-3 (F) may be reversed.

  Next, the operation of this embodiment will be described.

  As shown in FIGS. 1, 2, 3-1 to 3-3, since the waterproof sheet 100 is fixed without making a hole, for example, the fixing bracket is fixed from above the waterproof sheet 100 with a fixing screw. Compared to the structure, it is excellent in waterproofness.

  As shown in FIG. 2, the overhanging portion 220 of the reinforcing sheet 200 that protrudes from the outer edge portion 150 </ b> E of the fixing bracket 150 is bonded to the waterproof sheet 100. When the waterproof sheet 100 is blown up, concentration of peeling stress acting on the outer edge portion 150E of the fixing metal 150 is suppressed. As a result, the waterproof sheet 100 is prevented or suppressed from being peeled off from the fixing bracket 150 or torn starting from the outer edge portion 150E of the fixing bracket 150. That is, the reliability of mechanical fixing of the waterproof sheet 100 is improved.

  Further, the reinforcing sheet 200 and the back surface 150B of the fixing metal 150 are bonded, and the reinforcing sheet 200 and the fixing metal 150 are integrated. Therefore, the peeling stress which acts on the outer edge portion 150E of the fixture 150 is further suppressed, and as a result, the reliability of mechanical fixing of the waterproof sheet 100 is further improved.

  Note that a tensile force is generated in the overhanging portion 220 of the reinforcing sheet 200 bonded to the waterproof sheet 100. Usually, however, the tensile bonding strength is much stronger than the peel bonding strength. The possibility that the adhesion between the portion 220 and the waterproof sheet 100 will be very low.

  Further, after covering the heat insulating material 50, the fixing metal 150 and the reinforcing sheet 200 with a waterproof sheet (see FIG. 4), the surface of the fixing metal 150 is heated by electromagnetic induction from above the waterproof sheet 100. When the 150A resin layer is melted and the prevention sheet 100 is pressed, the surface 150A of the fixture 150 and the waterproof sheet 100 are bonded (see FIG. 3E).

  Similarly, by pressing the overhanging portion 220 of the reinforcing sheet 200 from above the waterproof sheet 100, the microcapsule 250 (see FIG. 3C) is broken and the adhesive flows out, and the reinforcing sheet and the waterproof sheet Is bonded (see FIG. 3F).

  Thus, after covering the waterproof sheet 100, the fixing bracket 150, the reinforcing sheet 200, and the waterproof sheet 100 are fixed by an operation from above the waterproof sheet 100, so that the waterproof sheet can be easily fixed (see FIG. 3-3 (E), see F).

  In addition, since the reinforcing sheet 200 and the back surface 150B of the fixing metal 150 are bonded and the reinforcing sheet 200 and the fixing metal 150 are integrated, a fixing operation for fixing the fixing metal 150 with the reinforcing sheet 200 interposed therebetween ( In FIG. 3-1 (B)), since the reinforcing sheet 200 is not displaced, it is easy to work.

  Here, for example, when applying adhesive to a reinforcing sheet or fixture before covering the waterproof sheet, carefully position the waterproof sheet so that it does not wrinkle while positioning the waterproof sheet while covering the prevention sheet. It is necessary to adhere to the tool and the reinforcing sheet sequentially. Therefore, fixing work (enforcement) of the waterproof sheet is very complicated and time-consuming.

  On the other hand, in this embodiment, after covering the waterproof sheet 100 (see FIG. 4), after the alignment and wrinkle removal of the prevention sheet, both the fixing bracket 150 and the reinforcing sheet 200 are attached to the waterproof sheet 100. Since it can be bonded, the operation is much easier.

  Thus, the reliability of the mechanical fixing of the waterproof sheet 100 is improved while suppressing the fixing work of the waterproof sheet 100 from being complicated.

  Next, a modification of this embodiment will be described.

  First, a first modification will be described.

  In the above embodiment, as shown in FIG. 3A, the reinforcing sheet 200 is bonded to the back surface 150B of the fixing metal 150.

  On the other hand, in the first modified example, in FIG. 3A, the back surface 150B of the fixing bracket 150 and the reinforcing sheet 200 are not bonded, and in FIG. Thus, the reinforcing sheet 200 is sandwiched.

  Then, the fixing metal 150 is electromagnetically heated by the electromagnetic induction heating device 300 from above the waterproof sheet 100 of FIG. 3-3 (E), and the resin layers on the front surface 150A and the back surface 150B of the fixing metal 150 are melted and pressed. The front surface 150A of the fixing bracket 150 and the waterproof sheet 100 are bonded, and at the same time, the back surface 150B of the fixing bracket 150 and the reinforcing sheet 200 are bonded.

  Therefore, the bonding of the front surface 150A of the fixing bracket 150 and the waterproof sheet 100 and the bonding of the back surface 150B of the fixing bracket 150 and the reinforcing sheet 200 at the same time improves the working efficiency compared to the case of bonding separately. improves.

  Next, a second modification will be described.

  In the above embodiment, the microcapsule 250 in which the adhesive is encapsulated using the brush 260 or the like on the protruding portion 220 that protrudes from the outer edge portion 150E of the fixing bracket 150 of the reinforcing sheet 200 in FIG. In FIG. 3-3 (F), the protruding portion 220 of the reinforcing sheet 200 is pressed by the roller 320 from above the waterproof sheet 100, and the protruding portion 220 of the reinforcing sheet 200 and the waterproof sheet 100 are bonded. It was.

  On the other hand, in the second modification, as shown in FIGS. 5 and 6, the reinforcing sheet 202 is a resin sheet reinforced by metal fibers (inside the metal fibers (magnetic material)). The resin sheet is configured to include The metal fiber of the overhanging portion 222 of the reinforcing sheet 202 is formed on the waterproof sheet 100 with a donut-shaped (tubular) electromagnetic induction heating device 350 having a through hole 352 having a diameter slightly larger than that of the solid metal fitting 150 at the center. Is heated by electromagnetic induction, the resin component of the reinforcing sheet 202 is dissolved, the waterproof sheet 100 is pressed, and the waterproof sheet 100 and the overhanging portion 222 of the reinforcing sheet 202 are bonded.

  Accordingly, it is necessary to apply the microcapsule 250 containing the adhesive to the overhanging portion 220 that protrudes from the outer edge portion 150E of the fixing bracket 150 of the reinforcing sheet 200 in FIG. Since there is no, work efficiency is improved.

  In addition, the electromagnetic induction heating apparatus 390 (refer FIG. 7) of the structure which integrated the electromagnetic induction heating apparatus shown in FIG.3-3 (E) and the electromagnetic induction heating apparatus 350 shown in FIG. ) Can be used to bond the waterproof sheet 100, the fixing bracket 150, and the reinforcing sheet 200 in one operation.

  Here, the electromagnetic induction heating device is a device in which magnetic lines generated by a magnetic force generating coil in the heating holder generate an eddy current inside the stainless steel layer of the fixing bracket 150 (IH disk). And the stainless steel layer of a fixing metal fitting is heated by generation | occurrence | production of this eddy current, and the resin layer laminated | stacked on it melt | dissolves.

  The microcapsule is a target substance (an inclusion (in the above-described embodiment, an adhesive)) made into small particles of a micron unit, and each particle is wrapped with a thin film.

  The present invention is not limited to the above embodiment.

  For example, in the above-described embodiment, the pressure-sensitive one-liquid type adhesive is encapsulated in the microcapsule, but is not limited thereto. A two-component type resin curable adhesive composed of an adhesive main agent and a curing agent may be used. In this case, the microcapsule contains either one of an adhesive main agent and a curing agent. The capsule is broken by the pressure at the time of adhesion, and the two liquids are mixed and cured.

  Also, for example, in FIG. 3C, the microcapsule 250 containing the adhesive is applied to the surface 150A of the fixing bracket 150 of the reinforcing sheet 200, and the roller (FIG. 3-3) is applied in FIG. (See (F)), the waterproof sheet 100 may be pressed to adhere the surface 150A of the fixture 150. Note that both the fixing bracket 150 and the reinforcing sheet 200 may be bonded using the waterproof sheet 100 and the microcapsule 250. In this case, since the electromagnetic induction heating devices 300, 350, and 390 are not used, a power source for driving the electromagnetic induction heating devices 300, 350, and 390 becomes unnecessary. Further, the back surface 150 </ b> B of the fixing metal 150 and the reinforcing sheet 200 may be bonded by the microcapsule 250.

  In addition, for example, by forming the waterproof sheet as a resinous sheet reinforced with metal fibers, the metal fibers of the waterproof sheet are electromagnetically heated to dissolve the resin component, so that at least one or both of the fixing bracket and the reinforcing sheet are used. May be adhered. Furthermore, by using the electromagnetic induction heating device 390 shown in FIG. 7, it is possible to bond the waterproof sheet reinforced with metal fibers, the fixing metal 150, and the reinforcing sheet 200 in one operation.

  As the resinous waterproof sheet reinforced with metal fibers, for example, a waterproof sheet described in Japanese Patent Application Laid-Open No. 2004-306565 can be used.

  Further, the fixture (solid metal fitting 150) need not be a metal disk. As long as it has sufficient strength to fix the waterproof sheet 100, it may be made of a material other than metal (in the case of other than metal, it can be bonded with the microcapsule 250). Further, even if it is made of resin and is reinforced with metal fibers or the like, it can be bonded by dissolving the resin component by electromagnetic induction heating if it contains a magnetic material.

  The fixture is preferably disk-shaped from the viewpoint of stress applied to the outer edge. In other words, for example, in the case of a quadrangle or a triangle, there is a great risk that stress concentrates on the corner and breaks starting from the corner. However, outer edges (corners) such as polygons with large corners (for example, dodecagons), polygons with rounded corners, ellipses, track shapes (shapes formed by connecting semicircles with straight lines), etc. As long as the excessive stress concentration is suppressed in the part), the shape is not necessarily disc-shaped.

  Moreover, in the said embodiment, although the foundation | substrate was the heat insulating material 50, it is not limited to this (refer FIG. 1 and FIG. 2). For example, a steel deck may be used. Alternatively, the fixing bracket 150 may be directly fixed to the roof slab (land roof) 12 (see FIG. 1), and the waterproof sheet 100 may be fixed. Further, the fixing means may be other than the fixing screw 180. A fixing means suitable for the ground (corresponding to the ground) may be used. For example, a female screw hole may be formed in advance in the base, and the solid tool may be fixed by screwing with a bolt.

  Moreover, you may adhere | attach a fixing tool, a reinforcement sheet | seat, and a waterproof sheet other than the microcapsule in which the electromagnetic induction heating and the adhesive agent were included.

  In other words, any means can be used to bond the reinforcing sheet, the fixture, and the waterproof sheet by pressing the waterproof sheet while the adhesive function is exhibited by the operation from the top of the waterproof sheet. It may be a thing. For example, the resin component of the waterproof sheet, the resin layer of the fixture, the resin component of the reinforcing sheet, and the like may be dissolved by hot air welding and then bonded by pressing.

It is a fragmentary sectional perspective view which shows the rooftop part of the building to which the fixing structure of the waterproof sheet which concerns on embodiment of this invention was applied. It is a longitudinal cross-sectional view which shows the mechanical fixing structure of the waterproof sheet along the AA line of FIG. (A) And (B) is explanatory drawing which shows the mechanical fixing method of the waterproof sheet which concerns on embodiment of this invention in order. (C) And (D) is explanatory drawing which shows the mechanical fixing method of the waterproof sheet which concerns on embodiment of this invention in order. (E) And (F) is explanatory drawing which shows the mechanical fixing method of the waterproof sheet which concerns on embodiment of this invention in order. It is a longitudinal cross-sectional view corresponding to FIG. 2 before a waterproof sheet is adhere | attached with a fixing metal fitting and a reinforcement sheet. It is explanatory drawing corresponding to FIG.3-3 (F) which shows the mechanical fixing method of the waterproof sheet of a 2nd modification typically. It is a longitudinal cross-sectional view which shows the mechanical fixing method (mechanical fixing structure) of the waterproof sheet of a 2nd modification. It is a longitudinal cross-sectional view which shows the mechanical fixing method of the waterproof sheet of another example. It is explanatory drawing which shows in order to the mechanical fixing method of the waterproof sheet to which this invention is not applied to (A)-(D). It is a longitudinal cross-sectional view which shows the fixing structure of the waterproof sheet to which this invention is not applied.

Explanation of symbols

10 Building
50 Insulation (base)
100 waterproof sheet 150 fixing bracket (fixing tool)
150A Front 150B Back 150E Outer edge 180 Fixing screw (fixing means)
200 Reinforcement sheet 202 Reinforcement sheet 220 Overhang part 222 Overhang part 250 Microcapsule

Claims (14)

A plate-like fixture fixed to the ground by a fixing means;
A reinforcement sheet sandwiched between the fixture and the base and having an overhanging portion protruding from an outer edge portion of the fixing device;
A waterproof sheet placed on the base, the fixture, and the reinforcing sheet;
Fixing means for adhering the surface of the fixing tool and the waterproof sheet by pressing the waterproof sheet while the adhesive function is expressed by the operation from the top of the waterproof sheet;
Reinforcing sheet bonding means for bonding at least the overhanging portion of the reinforcing sheet and the waterproof sheet by pressing the waterproof sheet while exhibiting an adhesive function due to the operation from above the waterproof sheet;
Waterproof sheet fixing structure comprising The fixture is made of a resin containing at least a metal film having a resin film formed on the surface or a magnetic body,
The fixing tool bonding means is a metal fitting or magnetic body of the fixing tool, and a resin,
The waterproof sheet fixing structure according to claim 1, wherein the metal fitting or the magnetic body of the fixture is heated by electromagnetic induction to dissolve the resin and develop an adhesive function. The fixing tool bonding means is a microcapsule that is applied to the surface of the fixing tool and contains an adhesive.
2. The waterproof sheet fixing structure according to claim 1, wherein the microcapsule is pressed from above the waterproof sheet, the microcapsule is broken, and an adhesive agent flows out to exhibit an adhesive function. The reinforcing sheet is made of a resin containing a magnetic material,
The reinforcing sheet bonding means is a magnetic body and a resin constituting the reinforcing sheet,
The waterproof sheet fixing structure according to any one of claims 1 to 3, wherein the magnetic material of the reinforcing sheet is heated by electromagnetic induction to dissolve the resin and develop an adhesive function. The reinforcing sheet bonding means is applied to at least an overhang portion of the reinforcing sheet, and is a microcapsule containing an adhesive,
The waterproof sheet according to any one of claims 1 to 3, wherein when the microcapsules are pressed from above the waterproof sheet, the microcapsules are broken and an adhesive flows out, thereby exhibiting an adhesive function. Fixed structure. The waterproof sheet is made of a resin containing a magnetic material,
At least one of the fixing tool bonding means and the reinforcing sheet bonding means is a magnetic body and a resin constituting the waterproof sheet,
The waterproof sheet fixing structure according to claim 1, wherein the magnetic material of the waterproof sheet is heated by electromagnetic induction to dissolve the resin and develop an adhesive function.   The waterproof sheet fixing structure according to any one of claims 1 to 6, wherein a back surface of the fixture is bonded to the reinforcing sheet. After fixing the plate-shaped fixing tool to the base by a fixing means with the reinforcing sheet sandwiched therebetween so that the protruding portion protrudes from the outer edge of the fixing tool, the base, the fixing tool, and the reinforcing sheet A waterproof sheet covering process for covering the waterproof sheet on top,
Fixing tool bonding step of bonding the surface of the fixing tool and the waterproof sheet by expressing the adhesive function by the operation from above the waterproof sheet and pressing the waterproof sheet against the fixing tool;
Reinforcement that bonds the overhanging portion of the reinforcing sheet and the waterproof sheet by causing the adhesive sheet to exhibit an adhesive function from above the waterproof sheet and pressing the waterproof sheet against the overhanging portion of the reinforcing sheet. Sheet bonding process;
The fixing method of a waterproof sheet provided with. The fixture is made of a resin containing at least a metal film having a resin film formed on the surface or a magnetic body,
The waterproof sheet fixing method according to claim 8, wherein in the fixing tool bonding step, the metal fitting or the magnetic body of the fixing tool is electromagnetically heated to dissolve the resin and develop an adhesive function. The fixture is made of a resin containing metal fittings or magnetic bodies having resin films formed on both sides,
In the fixing tool bonding step, the surface of the fixing tool, the waterproof sheet, and the waterproof sheet are melted by electromagnetic induction heating of the fixture or magnetic body of the fixing tool, and the waterproof sheet is pressed against the fixing tool. The waterproof sheet fixing method according to claim 9, wherein the waterproof sheet and the reinforcing sheet are bonded to each other. In the waterproof sheet coating step, before covering the waterproof sheet, a microcapsule containing an adhesive is applied to the fixture,
The waterproof sheet fixing method according to claim 8, wherein in the reinforcing sheet bonding step, the microcapsule is pressed from above the waterproof sheet to break the microcapsule and cause the adhesive to flow out, thereby exhibiting an adhesive function. The reinforcing sheet is made of a resin containing a magnetic material,
The method for fixing a waterproof sheet according to any one of claims 8 to 11, wherein, in the reinforcing sheet bonding step, the magnetic material of the reinforcing sheet is heated by electromagnetic induction to dissolve the resin and develop an adhesive function. . In the waterproof sheet coating step, before covering the waterproof sheet, a microcapsule containing an adhesive is applied to at least the protruding portion of the reinforcing sheet,
The said reinforcement sheet | seat adhesion process WHEREIN: The said microcapsule is pressed from on the said waterproof sheet, the said microcapsule is broken, an adhesive agent is made to flow out, The adhesive function is expressed any one of Claims 8-11. The waterproof sheet fixing method described in 1. The waterproof sheet is made of a resin containing a magnetic material,
The waterproof sheet fixing method according to claim 8, wherein at least one of the fixing tool bonding step and the reinforcing sheet bonding step, the magnetic body of the waterproof sheet is electromagnetically heated to dissolve the resin and develop an adhesive function.

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