JP2024025619A - Sheet fixing device and sheet fixing method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve strength of adhesion of the reverse side of a fixing disc with respect to the front side of a substrate.

SOLUTION: A sheet fixing device comprises: a fixing disc 1 fixing a part of a waterproof sheet C which is laid on the front side of a substrate B; a covering sheet 2 arranged on the front face 1a of the fixing disc 1; a mesh sheet 3 which is are arranged between the reverse side 2a of the fixing disc 1 and the front side of the substrate B while laminated in such a way that the mesh sheet 3 faces the reverse side 2a of the fixing disc 1 and the front side of the substrate; and a heater H which heats the mesh sheets 3 from the front side face 2b of the covering sheet 2 via the fixing disc 1. The mesh sheet 3 comprises a metal mesh 3a woven into a sheet shape, and a joining coat 3b which is formed on both front and back surfaces of the metal mesh 3a. The joining coat 3b melts by being heated from the heater H, and becomes an adhesive surface for the reverse side of the fixing disc 1 and the front side of the substrate B.

SELECTED DRAWING: Figure 1

COPYRIGHT: (C)2024,JPO&INPIT

Description

The present invention is used in a waterproofing method for waterproofing the roofs of buildings, roof tops, balconies, balconies, etc., and other structures, in which a part of the waterproof sheet is fixed to the base surface to be waterproofed using a fixed disk. The present invention relates to a sheet fixing device, a jig device used in the sheet fixing device, and a sheet fixing method for fixing a part of a waterproof sheet to a base using a mechanical fixing method using a fixing disk.

Conventionally, as a retrofit method of mechanical fixing construction, the anchor member penetrates the waterproof sheet and is fixed to the base, and the anchor member is placed between the disk of the fixed member and the waterproof sheet, and the anchor member is placed between the waterproof sheet and the cushioning material. There is a sheet fixing device that includes a cushioning material that absorbs the force received from the tarpaulin sheet by interlocking with each other by friction, and a waterproof member (patch) that covers the disk and is fixed to the tarpaulin sheet (for example, Patent Document 1 reference).
After a waterproof sheet is placed on the base, a disc is placed through a cushioning material made of elastically deformable rubber material and a spring, and the disc is fixed to the base by screwing through the through hole of the disc. A patch is arranged to cover the disk, and the lower surface of the patch is fixed to the waterproof sheet and the upper surface of the disk by heat-sealing or welding with a solvent. When the tarpaulin sheet is pulled up by the negative pressure of strong winds, the cushioning material placed along the bottom edge of the disk is elastically deformed and the tarpaulin sheet does not come into direct contact with it, preventing damage to the tarpaulin sheet caused by the outer corners of the disk. Preventing.
In addition, as a pre-installation method of mechanical fixing construction, there is a fixing member that joins and fixes the waterproof sheet to the joint, an anchor member that supports the part of the fixing member on the center side of the joint on the base, and an external part of the fixing member. There is a sheet fixing unit that is equipped with a regulating mechanism that restricts bending and deformation of the central part so that it is more difficult to bend and deform than the end parts (for example, see Patent Document 2).
The fixing member of the seat fixing unit is placed on the base, and the anchor member into which the plate spring of the regulation mechanism is inserted and supported is screwed into the base, and the fixing member is supported on the base via the anchor member. A hot melt adhesive is applied to the flat surface of the fixing member to form a joint. Next, a waterproof sheet is laid along the fixed member, and an induction heating device is applied to the flat surface of the fixed member through the waterproof sheet, and the bottom surface and joints (hot melt adhesive) of the waterproof sheet are melted and fixed. It is heat-sealed and fixed to the flat surface of the member. When the part of the waterproof sheet that is not fixed by the fixed member lifts up due to negative pressure of strong wind and causes undulating phenomenon (fluttering), each bendable part (outer end) of the fixed member will bend and deform. As a result, the force acting from the waterproof sheet on the joint is reduced, and peeling of the waterproof sheet from the joint and tearing of the waterproof sheet near the outer end of the joint are prevented.

Japanese Patent Application Publication No. 2014-034825 JP2019-031782A

By the way, the phenomenon of unfixed parts of the tarpaulin sheet lifting up and waving due to the negative pressure of strong winds (fluttering) also occurs when winds with unexpected maximum wind speeds such as violent typhoons blow.
However, in Patent Document 1 and Patent Document 2, the adhesive strength of the disk and fixing member (fixed disk) to the base is insufficient, so when a strong wind such as a strong typhoon blows, the fixed disk lifts up from the base together with the waterproof sheet. There was a problem in that it caused the waterproof sheet to break.
To explain in detail, in the retrofit method of Patent Document 1, when a strong wind blows that is stronger than the elastic (crumple) deformation limit of the cushioning material due to the negative pressure of the strong wind, the compression limit is applied to the outer corner of the fixed disk. The waterproof sheet comes into contact with the cushioning material that has been crushed and deformed, causing damage to the waterproof sheet.
The pre-installation method described in Patent Document 2 has the problem that when a strong wind blows that is stronger than the limit of bending deformation of the fixed disk due to the negative pressure of strong winds, the waterproof sheet may peel off from the joint, or the outer edge of the joint may The tarpaulin is torn nearby.
Furthermore, as the surface area of the base that is subject to waterproofing increases, the number of locations where the sheet is fixed by the fixing disk increases. However, in the case of the retrofitting method, the exposed fixing disk is covered with a patch (protective sheet) and heated with a heater to heat the bonding. Workers could easily distinguish between unfixed parts and unfixed parts. However, in the case of the pre-attaching method, all of the many fixing disks are covered with a waterproof sheet, so there are areas that have been heated and fixed by a heater, and areas that have not been heated and fixed yet and have not yet been heated and bonded by a heater. It was difficult for workers to easily identify the parts, and unheated and unfixed parts were sometimes left behind.
Under such circumstances, there is a need for a device that allows an operator to easily find and deal with unheated, unfixed locations that have not been heat-bonded by a heater.

In order to solve such problems, the sheet fixing device according to the present invention includes a fixing disk that fixes a part of the waterproof sheet laid along the front side of the base, and a coating provided along the surface of the fixing disk. a sheet, a mesh sheet provided so as to be stacked opposite to each other between the back side of the fixed disk and the front side of the base, and heating from the front side of the covering sheet to the mesh sheet through the fixed disk. a heater, the mesh sheet has a metal mesh woven into a sheet shape, and a bonding film formed on both the front and back surfaces of the metal mesh and the mesh, and the bonding film is heated by the heater. It is characterized in that it is melted and becomes an adhesive surface for the back side of the fixed disk and the front side of the base.
Furthermore, in order to solve such problems, the jig device according to the present invention includes a fixing disk for fixing a part of the waterproof sheet laid along the front side of the base, and a jig device provided along the surface of the fixing disk. a heater that heats the fixed disk from the front side of the cover sheet, a setting jig installed in a part of the cover sheet outside of a part covering the fixed disk, and a setting jig. a holding jig installed in place of the heater that is assembled to the tool, the holding jig presses against the heated portion of the covering sheet by the heater in a state that the holding jig is assembled to the setting jig; It is characterized by having a surface.
In addition, in order to solve such problems, the sheet fixing method according to the present invention includes a sandwiching step of arranging mesh sheets so as to face each other and stack them between the back side of the fixing disk and the front side of the base, and A disk fixing step of fixing a part of the waterproof sheet with the fixing disk to the front side of the waterproof sheet, an overlaying step of arranging a covering sheet along the surface of the fixing disk, and a heating step of fixing a portion of the waterproof sheet from the front side of the covering sheet to the fixing disk. a heating step of heating the mesh sheet through a fixed disk, the mesh sheet comprising a metal mesh woven into a sheet shape, a bonding coating formed on both the front and back surfaces of the metal mesh and on the mesh; In the heating step, the bonding film is melted by heating by the heater and becomes an adhesive surface for the back side of the fixed disk and the front side of the base.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an explanatory diagram showing the overall configuration of a seat fixing device according to an embodiment (first embodiment) of the present invention, in which FIG. 1(b) is a partially cutaway plan view. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 2 is an explanatory diagram showing the overall configuration of a jig device and a sheet fixing method according to an embodiment (first embodiment) of the present invention, in which FIG. ) is a partial longitudinal sectional front view of the pressing process. FIG. 2 is a partial longitudinal sectional front view showing the overall configuration of a sheet fixing device, a jig device, and a sheet fixing method according to an embodiment (second embodiment) of the present invention. FIG. 2 is a partial longitudinal sectional front view showing the overall configuration of a seat fixing device, a jig device, and a seat fixing method according to an embodiment (third embodiment) of the present invention. FIG. 3 is a partial longitudinal sectional front view showing the overall configuration of a sheet fixing device, a jig device, and a sheet fixing method according to an embodiment (fourth embodiment) of the present invention. FIG. 6 is an explanatory diagram showing the overall configuration of a seat fixing device, a jig device, and a seat fixing method according to an embodiment (fifth embodiment) of the present invention, and FIG. FIG. 6(b) is a partially cutaway plan view showing a partially enlarged view of FIG. FIG. 3 is a partial longitudinal sectional front view showing the overall configuration of a seat fixing device, a jig device, and a seat fixing method according to an embodiment (sixth embodiment) of the present invention. FIG. 7 is a partial longitudinal sectional front view showing the overall configuration of a seat fixing device, a jig device, and a seat fixing method according to an embodiment (seventh embodiment) of the present invention.

Hereinafter, embodiments of the present invention will be described in detail based on the drawings.
As shown in FIGS. 1 to 8, the sheet fixing device A according to the embodiment of the present invention is used in a waterproofing method for waterproofing the roof, rooftop, veranda, balcony, etc. of a building, and other structures. This is a fixed structure in which a part of the waterproof sheet C is attached to a base B, which is a surface, by means of a fixed disk 1.
Examples of the material for the base B include metal, concrete including lightweight foamed concrete, and wood.
The waterproof sheet C is made of vinyl chloride resin or other synthetic resin from the viewpoint of durability, heat adhesion or solvent welding properties, and it is recommended to use a vinyl chloride resin sheet with a thickness of 1.0 to 2.0 mm. preferable. The structure of the waterproof sheet C may be a single layer, but from the viewpoint of dimensional stability and strength, it may be a composite sheet or a reinforced composite sheet in which fiber layers such as glass fiber or polyester fiber woven fabric or non-woven fabric are laminated between multiple sheet layers. It is preferable to use a sheet.
This kind of waterproofing method that uses the fixed disk 1 to attach the waterproof sheet C to the base B is called a mechanical method (insulation waterproofing method), and generally the insulation material D is laid along the base surface of the base B. It is often done. The heat insulating material D is made of styrene resin, isocyanurate resin, hard urethane resin, phenol resin, or the like.
In this case, a sheet fixing device A is used in which a part of the waterproof sheet C is fixed by the fixing disk 1 to the heat insulating material D laid along the front side of the base B.

This type of mechanical fixing method includes a retrofitting method (retrofitting method) in which the fixing disk 1 is fixed after laying the waterproof sheet C as shown in FIGS. 1(a) and 5 (retrofitting method), and There is a pre-installation method (pre-installation fixing method) in which the fixed disk 1 is fixed before the waterproof sheet C is laid as shown in FIGS.
In both the post-installation method and the pre-installation method, the waterproof sheet C that covers the base B is fixed at points by a plurality of fixing disks 1 arranged at predetermined intervals, and most of the waterproof sheet C covering the base B, except for these fixed points, is attached to the base B. not fixed for
For this reason, when the unfixed parts of the waterproof sheet C are lifted by strong winds such as a typhoon or the wind pressure associated with a storm and become undulating (fluttering phenomenon), the fixed parts are subjected to load and may break or break. It causes
In order to solve such problems, the sheet fixing device A according to the embodiment of the present invention includes a fixing disk 1 provided for fixing a part of the waterproof sheet C laid along the front side of the base B. , a waterproof covering sheet 2 provided along the surface 1a of the fixed disk 1, and a mesh sheet 3 provided so as to be stacked facing each other between the back side of the fixed disk 1 and the front side of the base B. It is equipped as a main component.
Furthermore, it is preferable to further include a reinforcing layer 4 provided along the back surface 1b of the fixed disk 1.
Furthermore, a heater H is provided that heats the fixed disk 1, mesh sheet 3, etc. from the front side 2b of the covering sheet 2. When using the heater H, it is preferable to use a jig device J.

The fixed disk 1 is made of a conductive material (conductor) containing metal such as aluminum, stainless steel, or steel, or a similar hard material, and is formed into a flat circular or polygonal plate shape. In particular, it is preferable that the fixed disk 1 is made of an aluminum plate, a stainless steel plate, or the like, which has a flat front surface 1a and a rear surface 1b and an outer circumferential surface 1c, and has excellent corrosion resistance and strength. Further, as the material of the fixed disk 1, it is also possible to use a magnetic material such as martensitic stainless steel or ferritic stainless steel.
The shapes of the fixed disk 1 include relatively thick plate types shown in FIGS. 1(a)(b) to 4 and FIGS. 6(a)(b) to 8, and a comparative type shown in FIG. 8. There are also thin, bowl-shaped curved plate types. The thickness of the fixed disk 1 is preferably set to about 1.0 to 1.6 mm, more specifically 1.1 to 1.5 mm. The size (diameter) of the fixed disk 1 is preferably set to about 55 to 65 mm, more specifically 60 to 65 mm.
A fixing hole 1d is bored in the center of the fixed disk 1, into which a fixing device 1s consisting of a fastening member such as a screw or bolt, or a fixing member such as an anchor or nail is inserted. The shape of the fixing hole 1d is preferably formed by bending a counterbore 1e that fits into the head of the fixing tool 1s and projects from the back surface 1b of the fixing disk 1 in the thickness direction. Thereby, the strength of the fixed disk 1 can be increased.

In the case shown in FIGS. 1 to 8 as specific examples of the fixed disk 1, the fixed disk 1 is placed at a predetermined location on a heat insulating material D laid along a base B, or at a predetermined location on a waterproof sheet C laid along a heat insulating material D. On the other hand, the fixed disk 1 is placed through a mesh sheet 3, which will be described later, and the fixed disk 1 is immovably attached to the base B, the heat insulating material D, etc. using the fixing tool 1s inserted through the fixing hole 1d of the fixed disk 1. It will be done. In this installed state, the counterbore 1e protruding from the back surface 1b of the fixed disk 1 is either directly fitted into the mesh sheet 3 or the heat insulating material D, which will be described later, or penetrates the mesh sheet 3 or the waterproof sheet C to provide insulation. It is inserted into material D. As a result, the fixed disk 1 is fixed to the heat insulating material D and the waterproof sheet C so that the fixed disk 1 cannot be displaced.
Furthermore, in the illustrated example, the fixed disk 1 has a penetrating or concave recess 1f on the surface 1a. To explain in detail, a plurality of penetrating or concave recesses 1f are formed between the fixing hole 1d of the fixed disk 1 and the outer peripheral surface 1c. The plurality of recesses 1f are arranged at predetermined intervals in the circumferential direction, such as four, six, eight, etc., so as to have a symmetrical shape. As the plurality of recesses 1f, circular through holes with excellent workability are preferable. The diameter of the plurality of recesses 1f is preferably set to about 3 to 5 mm.

The covering sheet 2 is made of the same material as the waterproof sheet C, and is formed separately or integrally with the waterproof sheet C, and is arranged so as to cover the front surface 1a of the fixed disk 1, so that its back side 2a covers the front surface 1a of the fixed disk 1. and are joined and fixed in a sealed manner facing each other in the thickness direction. A front surface 2b of the covering sheet 2 superimposed along the surface 1a of the fixed disk 1 is arranged to face a heater H, which will be described later, in the thickness direction. Therefore, in the covering sheet 2, the overlapping part 2c that covers the fixed disk 1 protrudes the most in the thickness direction compared to the annular part 2d outside the overlapping part 2c and the surrounding part 2e outside the annular part 2d. , the front surface 2b has a step-like shape as a whole.
Further, when the fixed disk 1 has a penetrating or concave recess 1f on the surface 1a as shown in the illustrated example, the covering sheet 2 has a recess 2f that enters the recess 1f when heated by a heater H, which will be described later. To explain in detail, a portion of the covering sheet 2 that covers the plurality of recesses 1f becomes a recess 2f that enters the plurality of recesses 1f of the fixed disk 1 when heated by the heater H.
Furthermore, the detailed structure of the covering sheet 2 differs between the retrofitting method and the preattaching method.
The covering sheet 2 used in the retrofitting method shown in FIGS. 1(a), (b) to FIG. 5 is a protective sheet 2' formed in a circular shape larger than the fixed disk 1 separately from the waterproof sheet C. It is arranged so as to cover the surface 1a of the fixed disk 1 and a part of the waterproof surface Ca of the waterproof sheet C disposed around the surface 1a, and its back surface 2a is bonded and fixed as a whole.
The outer peripheral end surface 2о of the protective sheet 2' serving as the covering sheet 2 is sealed with a sealer 2s over the waterproof surface Ca of the waterproof sheet C.
In addition, the covering sheet 2 used in the pre-installation method shown in FIGS. The back surface 2a facing the front surface 1a is partially bonded and fixed.

Furthermore, it is preferable to form an adhesive layer g made of an adhesive material that can be melted by heating with a heater H, which will be described later, at least between the front surface 1a of the fixed disk 1 and the back surface 2a of the covering sheet 2.
As the adhesive material for the adhesive layer g, it is preferable to use a thermoplastic adhesive such as a hot melt adhesive. Specifically, it is preferable to use a hot melt adhesive having a melting point or R&B softening point of 100 to 160° C., such as a polyester resin adhesive or a polyamide (nylon) adhesive. Further, as another example, it is also possible to use a thermosetting adhesive, for example, an acrylic resin adhesive that starts curing at 150° C. or higher.
The adhesive layer g can be formed by coating by spraying, brushing, roller, or dip coating, by laminating films, or by pressing into a disk shape after coating with a liquid adhesive.
In the case shown in FIGS. 1 to 8 as specific examples of the adhesive layer g, hot adhesive is applied not only to the surface 1a of the fixed disk 1 but also to the back surface 1b and outer peripheral surface 1c of the fixed disk 1 and the inner surfaces of the plurality of recesses 1f. An adhesive layer g made of a melt adhesive or the like is laminated.

The mesh sheet 3 is disposed so as to be sandwiched between the back side of the fixed disk 1 and the front side of the base B, and is preferably formed larger than the fixed disk 1. When the fixed disk 1 is formed into a circular plate shape, the mesh sheet 3 is formed into a circular thin plate shape having a larger diameter than the fixed disk 1.
The mesh sheet 3 includes a metal mesh 3a woven into a sheet shape, and a bonding film 3b formed on both the front and back surfaces of the metal mesh 3a and the mesh.
The metal mesh 3a is made of a wire made of a conductive material (conductor) containing metal such as aluminum, stainless steel, or steel, or a similar hard material, and the vertical lines and horizontal lines intersect each other one by one while maintaining a constant interval. The metal mesh 3a is made to be bendable and deformable at least in the thickness direction of the metal mesh 3a by a weaving method such as a plain weave or a twill weave in which two or more vertical lines and horizontal lines cross over each other while maintaining a constant interval.
The thickness of the wire that becomes the metal mesh 3a is preferably set to about 0.1 mm to 0.3 mm, specifically about 0.15 mm to 0.2 mm.
The bonding film 3b is formed by dipping a thermoplastic resin such as vinyl chloride resin (PVC) so as to cover both the front and back surfaces and meshes of the metal mesh 3a, and is slightly thicker than the thickness of the metal mesh 3a. To explain in detail, by dip-molding (dip coating: dip application molding or dip painting) a coating material such as PVC using both the front and back sides of the metal mesh 3a and the mesh as a storage space for thermoplastic resin, general Compared to coatings, a large amount of coating material is held integrally with a uniform thickness. In order to prevent the coating material from dripping during dip molding, the mesh of the metal mesh 3a is preferably set to have an interval of about 1 mm to 3 mm, more specifically, about 1 mm to 2 mm. Further, in order to prevent the bonding film 3b from peeling off from the metal mesh 3a, it is preferable to dip-form a coating material such as PVC after the metal mesh 3a is primed with a heat-setting adhesive. Thereby, the coating material of the bonding film 3b is melted by heating by a heater H, which will be described later, and becomes an adhesive surface 3c for the back side of the fixed disk 1 and the front side of the base B.
Furthermore, if necessary, a heat generating layer 3d made of a conductive material (conductor) such as aluminum or stainless steel is provided on the back side of the mesh sheet 3, and an adhesive such as a hot melt adhesive is applied to the surface of the core material such as glass fiber. It is also possible to laminate the coated reinforcing sheet 3e and integrate the mesh sheet 3, heat generating layer 3d, and reinforcing sheet 3e by pasting with adhesive or liquid welding.

The reinforcing layer 4 is a single layer made of the same material as the tarpaulin sheet C, or a laminate made of a fabric having superior strength and durability than the tarpaulin sheet C, and is formed into a larger circular shape than the fixed disk 1. Ru. In particular, it is preferable that the reinforcing layer 4 is formed by integrally providing or laminating a layer made of a conductive material such as aluminum foil to generate heat by electromagnetic induction.
Note that the material of the reinforcing layer 4 can be changed so that a reinforcing structure with improved strength and durability can be obtained by combining the above-mentioned fabric or conductive material with a different reinforcing body.
Therefore, the reinforcing layer 4 is disposed along the back surface 1b of the fixed disk 1, and has a protrusion 4a that protrudes from the outer circumferential surface 1c of the fixed disk 1 in the radial direction.
An adhesive part (not shown) made of an adhesive such as a hot melt adhesive is formed on the surface of the reinforcing layer 4 facing the waterproof sheet C and the covering sheet 2, and can be melted and bonded by heating with a heater H, which will be described later. is preferred.

The heater H is a heat source that heats the covering sheet 2 from the front side to melt the bonding film 3b of the mesh sheet 3 and the like.
Examples of the heater H include an induction heating device Hi that heats metal or the like using the principle of electromagnetic induction, a hot air heater, a hot wire heater, and the like. In particular, it is preferable to use an induction heating device Hi with a smooth heating surface (irradiation section) Ha protruding from the tip thereof, and to bring the heating surface Ha into pressure contact with the front surface 2b of the covering sheet 2.
The heating surface Ha is made of a hard material with excellent heat resistance such as metal, or a material with excellent heat resistance and elastic deformation such as silicone rubber, and has a circular shape approximately the same size as the fixed disk 1 or a shape larger than the fixed disk 1. It is also formed into a large circular shape.
In the case shown in FIGS. 1 to 8 as an example of the heater H, the induction heating device Hi is assembled so as to face the front surface 2b of the overlapped portion 2c of the covering sheet 2, and the heating surface Ha of the induction heating device Hi is is brought into contact with the front surface 2b of the overlapped portion 2c of the covering sheet 2. Therefore, the back side 2a of the overlapping portion 2c of the covering sheet 2 that covers the fixed disk 1 is pressed against the front surface 1a of the fixed disk 1 due to the weight of the induction heating device Hi. A stepped portion Hb is formed on the outer peripheral surface of the induction heating device Hi, so that the tip portion having the heating surface Ha is smaller than the base portion.
Although not shown as another example of the heater H, there is a space formed of air or other insulating gas between the heating surface Ha of the induction heating device Hi and the front surface 2b of the overlapping portion 2c of the covering sheet 2. The heating surface Ha of the induction heating device Hi is brought into contact with the front surface 2b of the overlapping portion 2c of the covering sheet 2 with a spacer made of a non-conductive material (insulator) such as glass or plastic placed between the heating surfaces Ha of the induction heating device Hi. It is also possible. At this time, the interval between the spaces and the thickness of the spacer are set within a range that ensures that induction heating is irradiated from the heating surface Ha of the induction heating device Hi to the front side 2b of the overlapped portion 2c of the covering sheet 2. Ru. Furthermore, it is not necessary to form the stepped portion Hb on the outer peripheral surface of the induction heating device Hi.

The jig device J is used when heating (induction heating) the covering sheet 2 provided along the surface 1a of the fixed disk 1 with a heater H (induction heating device Hi), and is shown in FIG. This will be explained in detail based on b).
The jig device J includes a set jig J1 installed in an annular region 2d and a surrounding region 2e on the outer side of the overlapping region 2c covering the fixed disk 1 in the covering sheet 2, and a heater H for the set jig J1. The main component includes a holding jig J2 that is installed as a main component.
The setting jig J1 is made of a non-conductive material (insulator) such as a rubber material such as hard rubber, plastic, plate-shaped paper material, wood or glass, and has a heating surface protruding from the tip of the induction heating device Hi in the center. It is formed into a cylindrical or prismatic shape having a through hole Ja into which Ha is inserted. On one end surface of the setting jig J1 that faces the annular portion 2d and the surrounding portion 2e of the covering sheet 2, an uneven surface Jb that fits into the step shape of the annular portion 2d and the surrounding portion 2e is formed. It is preferable to form a locking portion Jc on the other end surface of the setting jig J1, which engages with a stepped portion Hb formed on the outer circumferential surface of the induction heating device Hi.
The holding jig J2 is a substitute for the heater H assembled into the setting jig J1, and is made of metal or the like with a high specific gravity and is formed in the same shape and size as the tip of the heater H having the heating surface Ha. has a pressing surface Jp that comes into pressure contact with the heated portion 2h of the covering sheet 2 by the heater H when assembled to the setting jig J1.
It is preferable that the base end surface of the holding jig J2 has a smooth mounting surface Jq on which the weight J3 is mounted. It is preferable that the outer peripheral surface of the holding jig J2 forms a locking step Jr corresponding to the step Hb of the induction heating device Hi.
On the other hand, in the pre-installation method, since the fixed disk 1 is covered with the waterproof sheet C, the operator may easily lose track of the location where the fixed disk 1 is placed, and it may be difficult to install the setting jig J1. Therefore, in such a case, the fixed disk 1 made of a magnetic material and a magnet (magnet: not shown) are used, and after the fixed disk 1 is covered with the waterproof sheet C, the fixed disk 1 is covered with the waterproof sheet C in between. On the other hand, it is preferable to attract a magnet. This makes it easier to find the location of the fixed disk 1 using the magnet as a landmark, and also facilitates the work of installing the setting jig J1 on the fixed disk 1.

The sheet fixing method using the sheet fixing device A according to the embodiment of the present invention is as shown in FIGS. a sandwiching step in which the mesh sheets 3 are arranged to be stacked facing each other between and the front side of the base B, a disk fixing step in which a part of the waterproof sheet C is fixed with a fixing disk 1, and a surface of the fixing disk 1. The main steps include an overlaying step of arranging the covering sheet 2 along 1a, and a heating step of heating the covering sheet 2 from the front side 2b of the covering sheet 2 through the fixed disk 1 toward the mesh sheet 3 using a heater H. There is.
Furthermore, it is preferable to include a pressing step of pressing the front surface 2b of the covering sheet 2 heated by the heater H toward the surface 1a of the fixed disk 1.
In the heating step, as shown in FIG. 2(a), the bonding film 3b of the mesh sheet 3 is melted by heating by the heater H, and becomes an adhesive surface 3c for the back side of the fixed disk 1 and the front side of the base B.
In the pressing process, as shown in FIG. 2(b), by using a pressing jig J2 and a weight J3 in place of the heater H, the heating area 2h of the covering sheet 2 by the heater H is heated to the surface of the fixed disk 1. Pressure is applied to 1a.

Next, description will be given of first to fourth embodiments in which the sheet fixing device A according to the embodiment of the present invention is used in a retrofitting method, and fifth to seventh embodiments in which it is used in a prefixing method. do.
The sheet fixing device A1 of the first embodiment shown in FIGS. 1(a)(b) to 2(a)(b) has a back surface 1b of a fixed disk 1 (first fixed disk 11) and a waterproof sheet C( A mesh sheet 3 (first mesh sheet 31) having a larger diameter than the fixed disk 1 is arranged between the first waterproof sheet C1), and the fixed disk is immovably attached to the base B and the heat insulating material D. This is a post-installation method in which a protective sheet 2' (first protective sheet 21) serving as the covering sheet 2 is placed over a part of the waterproof surface Ca of the waterproof sheet C from the surface 1a of the waterproof sheet C. In the illustrated example, a thick plate type is used as the fixed disk 1.
The bonding film 3b of the mesh sheet 3 is melted by heating (induction heating) by the heater H (induction heating device Hi), and the back surface 1b of the fixed disk 1 and the waterproof surface Ca of the waterproof sheet C are bonded and fixed, and at the same time, the coating is The back side 2a of the annular part 2d of the sheet 2 (protective sheet 2') and the outer peripheral part 3o of the mesh sheet 3 are welded and joined, and the back side 2a of the peripheral part 2e of the covering sheet 2 (protective sheet 2') is a waterproof sheet. It is welded and joined to the waterproof surface Ca of C using a solvent.

In addition to this, when an adhesive layer g is formed at least between the surface 1a of the fixed disk 1 and the back surface 2a of the covering sheet 2 (protective sheet 2'), heating by the heater H (induction heating device Hi) is possible. The adhesive layer g is melted by (induction heating). Therefore, the back side 2a of the overlapping portion 2c of the covering sheet 2 (protective sheet 2') and the front surface 1a of the fixed disk 1 are bonded and fixed by the adhesive layer g.
Furthermore, when the fixed disk 1 has a penetrating or concave recess 1f on the surface 1a as shown in the illustrated example, the covering sheet 2 (protective sheet 2') is thermally deformed and enters each of the plurality of recesses 1f, and other parts of the overlapping region 2c of the covering sheet 2 (protective sheet 2') except for the recesses 1f are formed to cover the overlapping region 2c of the covering sheet 2 (protective sheet 2'). A recessed portion 2f is formed that is lower than the other portion. Therefore, the back side of the recess 2f is bonded and fixed to the inner surface of the recess 1f in an uneven manner by the melted adhesive layer g.
Furthermore, as shown in the illustrated example, when the adhesive layer g is laminated on the back surface 1b and outer circumferential surface 1c of the fixed disk 1 and on the inner surfaces of the plurality of recesses 1f, the adhesive layer g is formed by induction heating from the heating surface Ha. is melted, and the back surface 2a of the annular portion 2d outside the overlapping portion 2c of the covering sheet 2 (protective sheet 2') and the outer circumferential surface 1c of the fixed disk 1 are bonded and fixed by the adhesive layer g.

As for the installation procedure, as shown in Fig. 1(a)(b), the fixing disk 1 is placed on top of the waterproof sheet C with the mesh sheet 3 sandwiched between them, and holes are punched out using fixing tools such as screws and bolts. After processing, the fixed disk 1 is immovably attached to the base B, the heat insulating material D, and the waterproof sheet C using the fixing tool 1s. Thereby, irrespective of whether or not the fixed disk 1 has a counterbore 1e, the metal mesh 3a of the mesh sheet 3 will not fray, and a decrease in strength can be prevented. Moreover, if the back surface of the mesh sheet 3 is laminated on the waterproof surface Ca of the waterproof sheet C and is bonded with an adhesive or integrated by liquid welding, misalignment with respect to the waterproof sheet C can also be prevented. In particular, when the fixing disk 1 has a counterbore 1e, a recess with a shape similar to the counterbore 1e is formed to protrude toward the screw hole of the waterproof sheet C and comes into pressure contact with the fixture 1s, so that the fixture 1s does not come off. be done.
Subsequently, after covering the fixed disk 1 with the covering sheet 2 (protective sheet 2'), the setting jig J1 of the jig device J is placed on the protective sheet 2', as shown in FIG. 2(a). Once installed, the heating surface Ha of the heater H (induction heating device Hi) is inserted into the through hole Ja of the setting jig J1 and assembled, and the protective sheet 2' is overlaid by heating from the heating surface Ha (induction heating). The bonding film 3b of the mesh sheet 3 is melted through the portion 2c and the fixed disk 1, and the back surface 1b of the fixed disk 1 and the waterproof surface Ca of the waterproof sheet C are bonded with both the front and back surfaces of the metal mesh 3a and the adhesive surface 3c of the mesh in between. Fixed with adhesive.
Thereby, it is possible to improve the adhesive strength of the back side of the fixed disk 1 to the waterproof sheet C on the front side of the base B, and to improve the breaking strength of the waterproof sheet C.

After that, as shown in FIG. 2(b), the heater H is removed from the through hole Ja of the setting jig J1, the holding jig J2 is inserted and assembled in place of the heater H, and the holding jig J2 is placed. By placing the weight J3 on the surface Jq, the pressing surface Jp of the pressing jig J2 can be strongly pressed against the heated area 2h of the covering sheet 2 by the heater H by the weight of the pressing jig J2 and the weight J3. can.
The holding jig J2 and the weight J3 are maintained in the assembled state until the heated area 2h of the covering sheet 2 (protective sheet 2') by the heater H cools down, and when the heating work of the heater H for all fixed disks 1 is completed. The worker collects it at an appropriate time.

The sheet fixing device A2 of the second embodiment shown in FIG. 3 has a reinforcing layer 4 (a second The structure in which the reinforcing layer 42) is disposed and the protective sheet 2' (second protective sheet 22) serving as the covering sheet 2 and the protrusion 4a of the reinforcing layer 4 are joined is different from the first embodiment described above; The configuration is the same as the first embodiment.
The protruding portion 4a of the reinforcing layer 4 is arranged to face the annular portion 2d of the covering sheet 2 (protective sheet 2'), and is heated (induction heating) by the heater H (induction heating device Hi) to heat the reinforcing layer 4. The front side of the protrusion 4a and the back side 2a of the annular portion 2d of the covering sheet 2 (protective sheet 2') are joined and fixed in a stepped manner.
In the examples shown in FIGS. 2 and 7, a waterproof sheet C containing a plasticizer such as a vinyl chloride resin sheet and a heat insulating material D made of styrene are used, and between the waterproof sheet C and the heat insulating material D, an insulating layer is used. E is laminated.
The insulating layer E is made of a foam sheet such as polyethylene or a similar sheet material, and prevents the styrene heat insulating material D from being eroded by the plasticizer contained in the waterproof sheet C.

The sheet fixing device A3 of the third embodiment shown in FIG. The protrusion 4a of the (third reinforcing layer 43) and the outer periphery 3о of the mesh sheet 3 are placed between the protective sheet 2' (third protective sheet 23) which becomes the covering sheet 2 and the waterproof sheet C (third waterproof sheet C3). The configuration in which the first and second embodiments are joined differs from the first and second embodiments described above, and the other configurations are the same as the first and second embodiments.
The protruding part 4a of the reinforcing layer 4 and the outer peripheral part 3о of the mesh sheet 3 are sandwiched between the back side 2a of the peripheral part 2e of the covering sheet 2 (protective sheet 2') and the waterproof surface Ca of the waterproof sheet C. and are bonded and fixed by heating (induction heating) by heater H (induction heating device Hi).

The seat fixing device A4 of the fourth embodiment shown in FIG. Unlike the configuration and the third embodiment, the other configurations are the same as the first embodiment, the second embodiment, and the third embodiment.
In the case of the illustrated example, as in the second embodiment, a reinforcing layer 4 (fourth reinforcing layer 44) arranged along the back surface 1b of the fixed disk 1, which is a thin bowl-shaped curved plate type, and a waterproof sheet. The mesh sheet 3 (fourth mesh sheet 34) is sandwiched between the waterproof sheet C (fourth waterproof sheet C4).
Although not shown as another example, it is possible to replace the fixed disk 1 described in the illustrated examples of the first embodiment and the third embodiment from a thick plate type to a thin bowl-shaped curved plate type. Further, it is also possible to replace the fixed disk 1 described in the illustrated examples of the fifth to seventh embodiments described below from a thick plate type to a thin bowl-shaped curved plate type.
Even if the fixed disk 1 is replaced from a thick plate type to a thin bowl-shaped curved plate type, the mesh sheet 3 can be placed between the back side of the fixed disk 1 and the front side of the base B. Therefore, as with the thick plate type, it is possible to improve the adhesive strength of the back side of the fixed disk 1 to the front side of the base B, and to improve the breaking strength of the waterproof sheet C.

The sheet fixing device A5 of the fifth embodiment shown in FIGS. A fixed disk 1 has a laminate in which a large-diameter mesh sheet 3 (fifth mesh sheet 35), a heat generating layer 3d, and a reinforcing sheet 3e are integrated, and is immovably attached to the base B and the heat insulating material D. This is a pre-installation method in which a waterproof sheet C (fifth waterproof sheet C5) is placed over the surface 1a of the insulation material D and the surface side of the heat insulating material D. Therefore, the overlapping portion 2c that covers the fixed disk 1, which is a part of the waterproof sheet C, becomes the covering sheet 2. The bonding film 3b of the mesh sheet 3 is melted by heating (induction heating) by the heater H (induction heating device Hi), and the back surface 1b of the fixed disk 1 and the front side of the heat insulating material D are bonded and fixed, and at the same time, the covering sheet 2 The waterproof back surface Cb of the waterproof sheet C is welded and joined to the front surface 1a of the fixed disk 1 and the outer peripheral portion 3о of the mesh sheet 3, respectively. That is, the outer circumferential portion 3 o of the mesh sheet 3 is welded to the back surface 2 a of the annular portion 2 d of the covering sheet 2 (waterproof sheet C). The back side 2a of the surrounding area 2e of the covering sheet 2 (waterproof sheet C) is welded to the front side of the heat insulating material D using a solvent.

In addition, when an adhesive layer g is formed at least between the surface 1a of the fixed disk 1 and the back surface 2a of the covering sheet 2 (waterproof sheet C), heating (induction heating) by the heater H (induction heating device Hi) Then, the adhesive layer g is melted. Therefore, the back side 2a of the overlapped portion 2c of the covering sheet 2 (waterproof sheet C) and the front surface 1a of the fixed disk 1 are bonded and fixed by the adhesive layer g.
Furthermore, when the fixed disk 1 has a penetrating or concave recess 1f on the surface 1a as shown in the illustrated example, the configuration is similar to the first embodiment described above.
The installation procedure is to place the fixing disk 1 on the heat insulating material D with a laminate in which the mesh sheet 3, the heat generating layer 3d, and the reinforcing sheet 3e are integrated, sandwiching the fixed disk 1, and punch it out with fixing tools 1s such as screws and bolts. The fixing disk 1 is immovably attached to the base B and the heat insulating material D using a fixing tool 1s.
Subsequently, after covering the fixed disk 1 with the covering sheet 2 (waterproof sheet C), the setting jig J1 of the jig device J is installed on the covering sheet 2 (waterproof sheet C), and the setting jig J1 is installed on the covering sheet 2 (waterproof sheet C). A heater H (induction heating device Hi) is attached to the tool J1, and by heating (induction heating), the bonding film 3b of the mesh sheet 3 is melted through the overlapping portion 2c of the covering sheet 2 (waterproof sheet C) and the fixed disk 1. , the back surface 1b of the fixed disk 1 and the front surface side of the heat insulating material D are adhesively fixed with the front and back surfaces of the metal mesh 3a, the adhesive surface 3c of the mesh, the heat generating layer 3d, and the reinforcing sheet 3e in between.
After that, similarly to the first embodiment described above, a holding jig J2 is assembled in place of the heater H, and the weight of the holding jig J2 and the weight J3 is applied to the heating area 2h of the covering sheet 2 by the heater H. , it is possible to strongly press the pressing surface Jp of the holding jig J2.

A sheet fixing device A6 of the sixth embodiment shown in FIG. 7 has a reinforcing layer 4 (a sixth The structure in which the reinforcing layer 46) is disposed and the waterproof sheet C (sixth waterproof sheet C6) serving as the covering sheet 2 and the protruding portion 4a of the reinforcing layer 4 are joined is different from the fifth embodiment described above; The configuration is the same as the fifth embodiment.
The protrusion 4a of the reinforcing layer 4 is arranged to face the annular portion 2d of the covering sheet 2 (waterproof sheet C), and is heated (induction heating) by the heater H (induction heating device Hi) to prevent the protrusion of the reinforcing layer 4. The front side of the portion 4a and the back side 2a of the annular portion 2d of the covering sheet 2 (waterproof sheet C) are joined and fixed in a stepped manner.

The sheet fixing device A7 according to the seventh embodiment shown in FIG. In contrast, the structure in which the waterproof sheet C (seventh waterproof sheet C7) serving as the covering sheet 2 is joined so as to be substantially flush with the surface 1a of the fixed disk 1 is different from the fifth embodiment and the sixth embodiment described above. Unlike the form, the other configurations are the same as the fifth embodiment and the sixth embodiment. That is, in the illustrated example, the reinforcing layer 4 (seventh reinforcing layer 47) is arranged between the back surface 1b of the fixed disk 1 and the mesh sheet 3 as in the sixth embodiment, but as in the fifth embodiment, It is not necessary to arrange the reinforcing layer 4 (seventh reinforcing layer 47) between the back surface 1b of the fixed disk 1 and the mesh sheet 3.
An annular spacer 4b corresponding to the thickness of the fixed disk 1 is provided on the outside of the fixed disk 1, so that the surface 1a of the fixed disk 1 and the surface of the annular spacer 4b are substantially on the same plane. An adhesive part (not shown) such as a hot melt adhesive is formed on the surface of the annular spacer 4b, and can be melted by heating (induction heating).
Thereby, by heating (induction heating) by the heater H (induction heating device Hi), the covering sheet 2 (waterproof sheet C) is bonded and fixed on substantially the same plane across the surface 1a of the fixed disk 1 and the surface of the annular spacer 4b. Ru.

According to the sheet fixing device A and the sheet fixing method according to the embodiment of the present invention, the mesh sheet The bonding film 3b of No. 3 is melted, and the back side of the fixed disk 1 and the front side of the base B are adhesively fixed to each other with both the front and back surfaces of the metal mesh 3a and the adhesive surface 3c of the mesh interposed therebetween.
Therefore, the adhesive strength of the back side of the fixed disk 1 to the front side of the base B can be improved.
As a result, when a strong wind such as a violent typhoon blows, the fixed disk is easily lifted up from the base together with the waterproof sheet.In contrast, the back side of the fixed disk 1 is attached to the adhesive surface 3c of the metal mesh 3a relative to the front side of the base B. Since the waterproof sheet C is fixed with adhesive so that it cannot be displaced, it is possible to prevent the waterproof sheet C from breaking even in the event of a strong wind such as a violent typhoon.

Furthermore, when the fixed disk 1 has a penetrating or concave recess 1f on the surface 1a as shown in the illustrated example, and the covering sheet 2 has a recess 2f that enters the recess 1f when heated by the heater H, the heater H By heating the cover sheet 2 from the front side 2b toward the adhesive layer g, the adhesive layer g melts and the front side 1a of the fixed disk 1 and the back side 2a of the cover sheet 2 are bonded and fixed.
At the same time, the opposing portion of the covering sheet 2 that covers the recessed portion 1f of the fixed disk 1 is thermally deformed by heating by the heater H and enters the recessed portion 1f, and other portions of the covering sheet 2 that cover the recessed portion 1f except for the recessed portion 1f are covered. The concave portion 2f is more depressed.
As a result, the back side of the recess 2f on the back surface 2a of the covering sheet 2 is bonded and fixed in an uneven manner to the inner surface of the recess 1f by the molten adhesive layer g.
Therefore, while the front surface 1a of the fixed disk 1 and the back surface 2a of the covering sheet 2 are joined in an uneven manner, traces of the heat treatment by the heater H can be left on the front surface 2b of the covering sheet 2.
As a result, the back side 2a of the covering sheet 2 is bonded to the front surface 1a of the fixed disk 1 without being able to shift, improving the adhesion between the two, suppressing the movement of the covering sheet 2, and preventing peeling between the two for a long time. It can be prevented for a long time.
Furthermore, the recess 2f formed on the front side 2b of the covering sheet 2 serves as a mark (indicator) for confirming the heating operation, so just by checking the presence or absence of the recess 2f, you can identify the unheated and unjoined areas by the heater H. Easy to discover and has excellent workability and maintainability.

In particular, it is preferable that the bonding film 3b of the mesh sheet 3 is a thermoplastic resin formed by dip molding on both the front and back surfaces of the metal mesh 3a and the mesh, and is melted by induction heating by the heater H.
In this case, by dip-molding the front and back surfaces of the metal mesh 3a and the mesh as a storage space for the thermoplastic resin, the bonding film 3b is obtained in which a large amount of the thermoplastic resin is integrally held with a uniform thickness. By melting the bonding film 3b from the front side surface 2b of the covering sheet 2 by heating (induction heating) with the heater H (induction heating device Hi), the fixed disk 1 is sandwiched between the front and back surfaces of the metal mesh 3a and the adhesive surface 3c of the mesh. The back side of the substrate B and the front side of the base B are fixed with adhesive.
Therefore, the adhesive strength of the back side of the fixed disk 1 to the front side of the base B can be reliably improved by a simple induction heating operation.
As a result, the workability is excellent and the breaking strength of the waterproof sheet C is improved.

According to the sheet fixing devices A1, A2, A3, and A4 of the first to fourth embodiments shown in FIGS. 1(a), (b) to FIG. After fixing disk 1 (11, 12, 13, 14) is fixed to waterproof surface Ca of (C1, C2, C3, C4) with mesh sheet 3 (31, 32, 33, 34) in between, A protective sheet 2' (21, 22, 23, 24) is bonded and fixed over a portion of the surface 1a of the disk 1, the outer peripheral portion 3o of the mesh sheet 3, and the waterproof surface Ca of the waterproof sheet C.
Therefore, by using the retrofit method of fixing the fixed disk 1 after laying the waterproof sheet C, the protective sheet 2 that becomes the covering sheet 2 can be improved while improving the adhesive strength between the back side of the fixed disk 1 and the waterproof surface Ca of the waterproof sheet C. ′ can also be improved.
As a result, when a strong wind blows that is stronger than the elastic (crumple) deformation limit of the cushioning material due to the negative pressure of strong winds, the cushioning material, which has been crushed to its compression limit, is sandwiched between the outer corners of the fixed disk and waterproofed. Compared to the conventional retrofitting method in which the sheets come into contact and are easily damaged, the protective sheet 2' is firmly adhesively fixed to the waterproof sheet C by sandwiching the outer periphery 3о of the mesh sheet 3, so it can be easily damaged even in strong winds. Breakage of the waterproof sheet C can be prevented.

According to the sheet fixing devices A5, A6, A7 of the fifth to seventh embodiments shown in FIGS. 6(a)(b) to 8, mesh sheets 3 (35, 36, 37 ) After the fixed disk 1 (15, 16, 17) is fixed across the fixed disk 1, a waterproof sheet C (C5, C6, C7) is applied as the covering sheet 2 so as to cover the surface 1a of the fixed disk 1 and the front side of the base B. By laying a part of the waterproof sheet C, a part of the waterproof sheet C is bonded and fixed to the front side of the base B with the outer peripheral part 3о of the mesh sheet 3 interposed therebetween.
Therefore, by using the advance method of fixing the fixed disk 1 before laying the waterproof sheet C, it is possible to improve the bonding strength between the back side of the fixed disk 1 and the front side of the base B, while also bonding it to the waterproof sheet C, which will become the covering sheet 2. Strength can also be improved.
As a result, when a strong wind blows that is stronger than the limit of the bending deformation of the fixed disk due to the negative pressure of strong winds, the waterproof sheet tends to peel off from the joint and the waterproof sheet tends to tear near the outer edge of the joint. Compared to the attachment method, since the waterproof sheet C is firmly adhesively fixed to the front side of the base B with the outer circumferential portion 3 o of the mesh sheet 3 sandwiched therebetween, the waterproof sheet C can be prevented from breaking even when a strong wind blows.

Furthermore, in the jig device J shown in FIGS. 2(a) and 2(b), a setting jig J1 for a heater H (induction heating device Hi) is installed above the fixed disk 1 with a covering sheet 2 in between. The heating surface Ha of the heater H is assembled to the tool J1, and the covering sheet 2 is heated (induction heating) by the heater H, and the bonding film 3b of the mesh sheet 3 is melted to become the adhesive surface 3c. Thereafter, the holding jig J2 is assembled in place of the heater H that was removed from the setting jig J1, and the pressure applied by the weight of the holding jig J2 causes the pressing surface Jp of the holding jig J2 to be pressed against the cover sheet 2 by the heater H. Pressure contact is made with the heated portion 2h. This makes it possible to continue pressing only the heated portion 2h of the covering sheet 2 against the surface 1a of the fixed disk 1 with the pressing surface Jp of the pressing jig J2.
Therefore, even if the heater H is turned off immediately after heating (induction heating) by the heater H (induction heating device Hi), the heated region 2h of the covering sheet 2 can be kept under pressure in a concentrated manner.
As a result, the operator no longer needs to stay at one heating (induction heating) location, but can move to the next heating location and start the next heating operation, significantly improving work efficiency.
In particular, when the weight J3 is placed on the holding jig J2, the weight of the weight J3 is added to the weight of the holding jig J2, so the heating area 2h of the covering sheet 2 by the heater H is , it is possible to press the pressing surface Jp of the holding jig J2 more strongly.
Further, after the heat bonding operation between the covering sheet 2 and the fixed disk 1 by the heater H is completed, the setting jig J1 and the holding jig J2 remain at the sheet fixing location. Therefore, based on the positional relationship between the setting jig J1 and the holding jig J2 that are still placed in the retrofitting method, it is possible for the worker to estimate the unheated and unfixed locations where heating and bonding have not yet been performed by the heater H. Become.
Therefore, the operator can easily find unheated, unfixed parts that have not been heat-bonded by the heater H and deal with them.
As a result, even if the number of locations where the sheet is fixed by the fixing disk 1 increases as the surface area of the base that is to be waterproofed increases, all the locations where the seat is fixed can be reliably heated by the heater H. There are no unjoined, unheated, unfixed parts left, which improves safety, and also reduces the effort required to find unheated, unfixed parts, resulting in excellent workability.
In addition, in the case of the front attachment method, a fixed disk 1 made of a magnetic material and a magnet are used, and after the fixed disk 1 is covered with a waterproof sheet C, the magnet is attracted to the fixed disk 1 with the waterproof sheet C in between. By attaching it, it becomes easier to find the location where the fixed disk 1 is placed, and the work of installing the setting jig J1 becomes easier.

In addition, in the embodiments (first embodiment to sixth embodiment) and illustrated examples, the heat insulating material D is laid between the base B and the waterproof sheet C or the fixed disk 1, but the invention is not limited to this. , the waterproof sheet C may be directly laid down without the heat insulating material D being laid along the base B, or the fixing disk 1 may be directly fixed without the heat insulating material D being laid on the base B. You can.
Further, although the induction heating device Hi is used as the heater H, the present invention is not limited to this, and a hot air heater, a hot wire heater, or the like may be used instead of the induction heating device Hi.
Further, in the illustrated example, the fixed disk 1 has a penetrating or concave recess 1f, but the present invention is not limited to this, and the recess 1f may not be formed.

A Sheet fixing device 1 Fixed disk 1a Surface 2 Covering sheet 2' Protective sheet 2a Back side 2b Front side 2c Area covering the fixed disk (overlapping area)
2d, 2e Outer part (annular part, peripheral part)
2h Heating area 3 Mesh sheet 3a Metal mesh 3b Bonding film 3c Adhesive surface 3о Outer periphery 3о
B Base C Waterproof sheet Ca Waterproof surface Cb Waterproof back side H Heater J Jig device J1 Setting jig J2 Holding jig Jp Pressing surface

In order to solve such problems , a sheet fixing device according to the present invention includes a fixing disk that fixes a part of a waterproof sheet laid along the front side of a base , and a sheet fixing device provided along the surface of the fixing disk. a covering sheet, a heater that heats the fixed disk from the front side of the covering sheet, a setting jig installed in a part of the covering sheet outside a part covering the fixed disk, and the setting jig. a pressing jig installed in place of the heater that is assembled to the setting jig, and the pressing jig has a pressing surface that comes into pressure contact with a heated portion of the covering sheet by the heater when assembled to the setting jig. It is characterized by having the following.
In addition, in order to solve such problems, the sheet fixing method according to the present invention includes a disk fixing step of fixing a part of the waterproof sheet to the front side of the base with a fixing disk, and a step of fixing a part of the waterproof sheet to the front side of the base with a fixing disk; a stacking step of arranging the covering sheets; a heating step of heating the covering sheet from the front side toward the fixed disk with a heater; In the heating step, a setting jig is installed at a portion of the covering sheet outside of a portion covering the fixed disk, and in the pressing step, a setting jig is installed on the setting jig. A pressing jig is installed in place of the heater to be assembled, and the pressing surface of the pressing jig is brought into pressure contact with the heating area of the covering sheet by the heater, so that the heating area of the covering sheet is brought into contact with the fixed disk by the pressing surface. Pressure is applied to the surface of .

Furthermore, in the jig device J shown in FIGS. 2(a) and 2(b), a setting jig J1 for a heater H (induction heating device Hi) is installed above the fixed disk 1 with a covering sheet 2 in between. The heating surface Ha of the heater H is assembled to the tool J1, and the covering sheet 2 is heated (induction heating) by the heater H, and the bonding film 3b of the mesh sheet 3 is melted to become the adhesive surface 3c. Thereafter, the holding jig J2 is assembled in place of the heater H that was removed from the setting jig J1, and the pressure applied by the weight of the holding jig J2 causes the pressing surface Jp of the holding jig J2 to be pressed against the cover sheet 2 by the heater H. Pressure contact is made with the heated portion 2h. This makes it possible to continue pressing only the heated portion 2h of the covering sheet 2 against the surface 1a of the fixed disk 1 with the pressing surface Jp of the pressing jig J2.
Therefore, even if the heater H is turned off immediately after heating (induction heating) by the heater H (induction heating device Hi), the heated region 2h of the covering sheet 2 can be kept under pressure in a concentrated manner.
As a result, the operator no longer needs to stay at one heating (induction heating) location, but can move to the next heating location and start the next heating operation, significantly improving work efficiency.
In particular, when the weight J3 is placed on the holding jig J2, the weight of the weight J3 is added to the weight of the holding jig J2, so the heating area 2h of the covering sheet 2 by the heater H is , the pressing surface Jp of the holding jig J2 can be brought into stronger pressure contact.
Further, after the heat bonding operation between the covering sheet 2 and the fixed disk 1 by the heater H is completed, the setting jig J1 and the holding jig J2 remain at the sheet fixing location. Therefore , from the positional relationship of the remaining setting jig J1 and holding jig J2, it is possible for the operator to estimate the unheated and unfixed locations where heating and bonding have not yet been performed by the heater H.
Therefore, the operator can easily find unheated, unfixed parts that have not been heat-bonded by the heater H and deal with them.
As a result, even if the number of locations where the sheet is fixed by the fixing disk 1 increases as the surface area of the base that is to be waterproofed increases, all the locations where the seat is fixed can be reliably heated by the heater H. There are no unjoined, unheated, unfixed parts left, which improves safety, and also reduces the effort required to find unheated, unfixed parts, resulting in excellent workability.
In addition, in the case of the front attachment method, a fixed disk 1 made of a magnetic material and a magnet are used, and after the fixed disk 1 is covered with a waterproof sheet C, the magnet is attracted to the fixed disk 1 with the waterproof sheet C in between. By attaching it, it becomes easier to find the location where the fixed disk 1 is placed, and the work of installing the setting jig J1 becomes easier.

Claims (6)

a fixing disk that fixes a part of the tarpaulin sheet laid along the front side of the substrate;
a covering sheet provided along the surface of the fixed disk;
a mesh sheet provided so as to be stacked oppositely between the back side of the fixed disk and the front side of the base;
a heater that heats the mesh sheet from the front side of the covering sheet through the fixed disk,
The mesh sheet includes a metal mesh woven into a sheet shape, and a bonding film formed on both the front and back surfaces of the metal mesh and the mesh,
The sheet fixing device is characterized in that the bonding film is melted by heating by the heater and becomes an adhesive surface for the back side of the fixing disk and the front side of the base. The sheet fixation according to claim 1, wherein the bonding film of the mesh sheet is a thermoplastic resin formed by dip molding on both the front and back surfaces of the metal mesh and the mesh, and is melted by induction heating by the heater. Device. The fixing disk is fixed to the waterproof surface of the waterproof sheet laid along the front side of the base,
the mesh sheet is formed larger than the fixed disk;
The covering sheet is a protective sheet that is adhesively fixed to cover the surface of the fixed disk, the outer periphery of the mesh sheet protruding from the fixed disk, and a part of the waterproof surface of the waterproof sheet. The sheet fixing device according to claim 1 or 2. The waterproof sheet is laid so as to cover the surface of the fixed disk fixed to the front side of the base,
the mesh sheet is formed larger than the fixed disk;
The covering sheet is formed as a part of the waterproof sheet, and the waterproof back surface of the waterproof sheet is bonded and fixed to the surface of the fixed disk via the outer periphery of the mesh sheet protruding from the fixed disk. The sheet fixing device according to claim 1 or 2. a fixing disk that fixes a part of the tarpaulin sheet laid along the front side of the substrate;
a covering sheet provided along the surface of the fixed disk;
a heater that heats the fixed disk from the front side of the covering sheet;
a setting jig installed in a part of the covering sheet outside a part covering the fixed disk;
a holding jig installed in place of the heater assembled to the setting jig;
The jig device is characterized in that the holding jig has a pressing surface that comes into pressure contact with a heated portion of the covering sheet by the heater when assembled to the setting jig. a sandwiching step of arranging mesh sheets so as to face each other and stack them between the back side of the fixed disk and the front side of the base;
a disk fixing step of fixing a part of the waterproof sheet to the front side of the base with the fixing disk;
an overlapping step of arranging a covering sheet along the surface of the fixed disk;
a heating step of heating the mesh sheet from the front side of the covering sheet via the fixed disk with a heater,
The mesh sheet includes a metal mesh woven into a sheet shape, and a bonding film formed on both the front and back surfaces of the metal mesh and the mesh,
The sheet fixing method is characterized in that in the heating step, the bonding film is melted by heating by the heater and becomes an adhesive surface for the back side of the fixing disk and the front side of the base.

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