JP2019085772A - Waterproof sheet fixture - Google Patents

Abstract

To provide a waterproof sheet fixture capable of efficiently performing a waterproof sheet repair work while suppressing the occurrence of noise and vibration.SOLUTION: The waterproof sheet fixture comprises: a first member D1 having a first sheet fixing portion 9 and fixable to a waterproof substrate 2 by screws 6; a second member D2 fixable to the waterproof substrate 2 by being connected to the first member D1 while having a second sheet fixing portion 20 and being disposed above the first member D1; and a coupling portion 18 coupling the first member D1 and the second member D2. A first opening 8 through which the screw 6 can be inserted is formed in the first member D1, a second opening 19 is formed at a position corresponding to the first opening 8 in the second member D2, and the coupling portion 18 is provided in a state of extending over the first opening 8 and the second opening 19 and couples the first member D1 and the second member D2.SELECTED DRAWING: Figure 6

Description

  The present invention relates to a waterproof sheet fixing device for fixing a waterproof sheet provided along a waterproof base to a waterproof base.

  Conventionally, as a waterproof sheet fastener of this type, for example, a fixing portion (hot melt adhesive layer) capable of adhering and fixing a waterproof sheet is provided on the upper surface of a fastener body made of a metal disk A screw insertion hole is formed in a central portion of the housing, and a screw member inserted into the screw insertion hole is configured to be fixed to a waterproof base (see, for example, Patent Document 1).

  For fixing the waterproof sheet to the waterproof sheet fixture, for example, put a waterproof sheet from the top of the waterproof sheet fixture installed on the waterproof base, and heat the fixture body from above using the electromagnetic induction heating device. Then, the adhesive layer on the fixing portion described above is melted, and the waterproof sheet is fixed to the fixing device main body.

And when repairing the waterproof sheet installed as mentioned above, for example, in the location which shifted sideways from the plane position of the waterproof sheet fixing tool already installed, the new for the repair from the top of the waterproof sheet There is a method (hereinafter, referred to as a first method) which is implemented by installing a waterproof sheet fixing tool and bonding a repair waterproofing sheet from above the waterproof sheet fixing tool.
However, according to this repair method, when installing the waterproof sheet fixing tool for repair, it is necessary to install a screw member on the waterproof base, and the noise and vibration accompanying the work propagate to the waterproof base, and it is environmentally There is a problem that it is not preferable.

  The following methods have been proposed as a method of modifying the noise and vibration problem. That is, the waterproof sheet is cut along the periphery of the waterproof sheet fixture already installed, and the waterproof sheet fixture is reheated to melt the adhesive layer of the fixed portion, and the waterproof sheet portion in which the cut is inserted is After removing from the tarpaulin fixing tool, the tarpaulin fixing tool exposed in the cutout part is used as it is, a new adhesive layer is provided on it, and a waterproofing sheet for repair is laid from above to waterproof It is a method (henceforth the 2nd method) to adhere to a sheet fixing tool (for example, refer to patent documents 1).

JP, 2002-88986, A

  In the case of using the above-mentioned conventional waterproof sheet fixing tool, if the waterproof sheet is repaired according to the first method, noise and vibration occur with the installation of the screw member as described above, which is not preferable from the environment. There's a problem. In addition, if the waterproof sheet is remodeled by the second method, it takes much time and effort to reliably remove the old adhesive layer from the fixing portion of the waterproof sheet fixing tool, and the work efficiency of the waterproof sheet repair decreases. There is a problem. If the old adhesive layer is not removed, there is a possibility that the adhesive performance can not be sufficiently exhibited even if a new adhesive layer is applied thereon.

  In the second method, instead of covering a new adhesive layer, it is conceivable to remove the screw member and replace the entire waterproof sheet fixing tool with a new one. Once the threaded member is removed, the plug anchor may be loosened, and even if the threaded member is screwed on again, a sufficient fixing force may not be obtained, which is not preferable.

  An object of the present invention is to provide a waterproof sheet fixing device capable of efficiently performing a waterproof sheet repair work while solving the above problems and suppressing the generation of noise and vibration.

The characteristic configuration of the waterproof sheet fixing device according to the present invention is
A waterproof sheet fixing device for fixing a waterproof sheet laid on a waterproof base to the waterproof base,
A first member having a first sheet fixing portion and fixable to the waterproof base by a nail or a screw;
A second member fixable to the waterproof foundation by being connected to the first member in a state of being disposed above the first member while having a second sheet fixing portion;
A connecting portion connecting the first member and the second member;
A first opening through which the nail or the screw can be inserted is formed in the first member,
A second opening is formed in the second member at a position corresponding to the first opening,
The connecting portion is provided so as to extend between the first opening and the second opening, and connects the first member and the second member.

  According to the present invention, the first member is fixed to the waterproof base by nails or screws, and the waterproof sheet is fixed by the first sheet fixing portion of the first member. And when remodeling to a new waterproof sheet with progress of years, the part corresponding to the first opening of the first member is cut out of the old waterproof sheet, and the second opening is made to correspond to the first opening. The second member is placed from the upper side in the state where the part is positioned, and the first member and the second member are connected by the connecting portion provided so as to extend between the first opening and the second opening. Do. Then, a new waterproof sheet can be adhered and fixed to the upper surface of the second member.

  That is, since the first member for fixing the old waterproof sheet can be reused while being fixed to the waterproof base, there is no need to remove the first member, and the first member can be effectively used. Since the second member is attached, there is no need to drill a new attachment hole in the waterproof base. As a result, it is possible to avoid the generation of noise, vibration and the like associated with the work of drilling a new mounting hole.

  A connection part connects a 1st member and a 2nd member using the structure of the 1st opening part which can penetrate nail | claw or a screw. Instead of this configuration, for example, as a configuration for connecting the first member and the second member, a screw or the like is disposed at a plurality of locations distributed along the circumferential direction at locations separated radially from the first opening. However, in such a configuration, the number of connection points may be increased, which may make the installation operation troublesome. On the other hand, the said connection part can fix both by simple connection structure by setting it as the structure which connects a 1st member and a 2nd member using the structure of a 1st opening part. .

  Therefore, it has come to be able to provide a waterproof sheet fixing tool capable of efficiently performing a waterproof sheet repair work by a simple connection structure while suppressing the generation of noise and vibration.

In the present invention,
The first member is provided with the first sheet fixing portion and a plate-like upper surface portion in which the first opening is formed, and extends in a tubular shape from the first opening toward the waterproof foundation side A tubular portion having a head locking portion for locking the head of the nail or the head of the screw inside the extended end;
The second member is a plate-like member in which the second sheet fixing portion is provided and the second opening is formed,
It is preferable that the connecting portion is locked to the inner peripheral portion of the cylindrical portion and locked to the second opening to connect the first member and the second member.

  This configuration can be suitably used in a configuration in which a plate-like heat insulating member is laid on a waterproof base and a waterproof sheet is laid along the upper surface of the heat insulating member. That is, in the first member, the nail or screw in which the head is locked to the head locking portion in a state in which the upper surface portion is placed on the surface of the heat insulating member and the tubular portion enters the inside of the heat insulating member It can be fixed to the waterproof base by

  Then, the second member, which is a plate-like member, is covered from the upper side of the upper surface of the first member, and the connecting portion is the inside of the cylindrical portion of the first member and the second opening of the second member. The first member and the second member are connected by locking to each other. Thus, the connecting part can connect the first member and the second member with a simple structure by utilizing the configuration of the cylindrical part entering the heat insulating member.

In the present invention,
The connecting portion is provided with a cylindrical outer member configured to be able to radially expand in a radial direction, and a shaft-like inner member that causes the outer member to expand in diameter by being inserted into the outer member,
It is preferable that the inner peripheral portion be provided with a locking portion for locking the outer member expanded in diameter by the inner member.

  According to this configuration, when the inner member is inserted into the outer member, the outer member is expanded in diameter, and is engaged with the locking portion provided on the inner peripheral portion of the cylindrical portion along with the diameter expansion. . That is, the first member and the second member can be connected by a simple operation of inserting the inner member into the outer member so that the connecting operation can be performed efficiently.

  In the present invention, it is preferable that the inner member is configured to be held in the axial direction with respect to the outer member by being inserted into the outer member.

  According to this configuration, the connecting operation can be performed by a simple operation of inserting the inner member into the outer member without performing a special operation for position holding in the axial direction.

  In the present invention, it is preferable that the connecting portion be provided with a boss member that can be screwed to the inner peripheral portion of the cylindrical portion and a screw that can be screwed to the inner peripheral portion of the boss member. It is.

  According to this configuration, the screw is engaged with the boss member provided on the inner peripheral portion of the cylindrical portion of the first member in a state in which the head is locked to the second opening of the second member Thus, the first member and the second member are connected.

  Thus, since it is the structure connected by screwing a screw, a 1st member and a 2nd member can be connected firmly in the state with little loosening.

It is a perspective view which shows the installation state of a sheet fixing tool. It is a disassembled perspective view of a sheet fixing tool. It is a perspective view of the sheet | seat fixing tool of the assembled state. It is sectional drawing which shows the installation state of a sheet fixing tool. It is sectional drawing which shows the repair condition of a waterproof sheet. It is sectional drawing of the decomposed state which shows the repair condition of a waterproof sheet. It is sectional drawing which shows the repair condition of a waterproof sheet. It is sectional drawing which shows the insertion state of an inner side member. It is the IX-IX sectional view taken on the line of FIG. FIG. 9 is a cross-sectional view taken along line XX in FIG. It is sectional drawing of the state which decomposed | disassembled which shows the repair condition of the waterproof sheet of another embodiment. It is sectional drawing which shows the repair condition of the waterproof sheet of another embodiment. It is sectional drawing which shows the repair condition of the waterproof sheet of another embodiment.

  Hereinafter, an embodiment of a waterproof sheet fixing tool according to the present invention will be described based on the drawings.

  As shown in FIG. 1, the waterproof sheet fixing tool 1 (hereinafter simply referred to as a sheet fixing tool) fixes a waterproof sheet 3 on a roof base (an example of a waterproof base) 2.

  The roof base 2 is made of a reinforced concrete slab in this embodiment. And the heat insulating material 4 is laid on the roof base 2, and the waterproof sheet 3 is provided in the state arrange | positioned above the heat insulating material 4. As shown in FIG. The roof foundation 2 is made of a slab of reinforced concrete structure, for example, a slab formed by laying ALC plates side by side, a slab formed by combining a deck plate or a metal folded plate and concrete, and a heat insulating layer laminated on these slabs And the like can also be used. And it is preferable that the roof base 2 can support the screw for fixing the sheet fixing tool 1 in the retaining state.

  The heat insulating material 4 is a plate-like member made of a heat insulating material. As a material of the heat insulating material 4, various things, such as a polystyrene, urethane, and an isocyanate, are employable, for example. Further, the waterproof sheet 3 shown in FIG. 1 has flexibility, and is made of, for example, a synthetic resin such as vinyl chloride.

  Although not shown, a plurality of the sheet fixtures 1 are arranged at intervals with respect to the roof foundation 2, and the waterproof sheet 3 is fixed to the roof foundation 2 using the plurality of waterproof sheet fixtures 1. There is.

  As shown in FIGS. 1 and 2, in the sheet fixing tool 1, the disc-shaped plate-like member 5 as a plate-like upper surface portion and the plate-like member 5 are insertable and fixed to the roof foundation 2 by screws 6. And a mounting member 7 as a cylindrical portion. The plate-like member 5 is formed by pressing a metal plate, and an insertion hole 8 as a first opening through which the attachment member 7 can be inserted is formed in the central portion of the disc. A portion on the outer peripheral side of the insertion hole 8 bulges upward, and an adhesive portion 9 as a first sheet fixing portion to which the waterproof sheet 3 is fixed is provided on the upper surface portion. Therefore, the plate-like member 5 and the attachment member 7 constitute a first member D1 which can be fixed to the roof foundation 2 by the screws 6.

  The bonding portion 9 is formed of, for example, a hot melt bonding layer made of an adhesive such as polyester, ethylene vinyl acetate, synthetic rubber, and olefin. In the case where the waterproof sheet 3 is fixed by the adhesive portion 9, the waterproof sheet 3 is placed on the upper side of the sheet fixture 1, and the plate-like member is placed on the waterproof sheet 3 by the electromagnetic induction heating device or the like. The waterproof sheet 3 can be adhered to the plate-like member 5 by heating 5 to melt the hot melt adhesive layer of the adhesive portion 9.

  At the outermost edge of the plate-like member 5, an annular grounding portion 10 is formed below the bonding portion 9 so as to be in contact with the upper surface of the heat insulating material 4 (see FIG. 4). A recess 11 recessed on the side of the roof base 2 is formed around the entire periphery of the insertion hole 8 in the plate-like member 5, and between the recess 11 and the bonding portion 9, the roof 11 is formed from the recess 11. An annular rib 12 is formed which bulges to the side opposite to the base 2.

  The mounting member 7 is made of a metal material, and as shown in FIG. 2, the mounting member 7 is provided at the upper end of the cylindrical main body 13 through which the screw 6 is inserted and the upper end of the main body 13. And a hooked portion 14 having a diameter larger than that of the hooked portion, and a counterbore portion 15 provided at the inner lower end of the main body portion 13 and capable of locking the head of the screw 6 as a head locking portion There is. A plurality (four in the example shown) of openings 16 are formed in the main body portion 13 of the mounting member 7 in the state of being inserted in the radial direction with intervals in the circumferential direction.

Next, an example of the installation procedure of the sheet fixture 1 will be described.
The plate-like member 5 and the mounting member 7 are united in advance (see FIG. 3). Then, the sheet fixture 1 is installed on the roof base 2 on which the heat insulating material 4 is laid. At the time of installation, the lower end portion of the mounting member 7 is pierced into the heat insulating material 4 and the screw 6 inserted into the inside of the mounting member 7 is screwed. In this case, a hole into which the mounting member 7 is inserted may be formed in advance at the installation corresponding position in the heat insulating material 4. The screw 6 is screwed in until the hooked portion 14 is received in the recessed portion 11 formed around the insertion hole 8 of the plate-like member 5. The mounting member 7 is fixed to the roof base 2 by the screw 6, and the mounting member 7 presses the plate-like member 5 to fix the plate-like member 5. The sheet fixing tool 1 can be installed by the above process.

  After installing the sheet fasteners 1 at other places, install the waterproof sheet 3 from above them and install them, remove the slack of the waterproof sheet 3, and place the sheet fastener 1 on the waterproof sheet 3. In the part corresponding to the above, an induction heating device (not shown) is applied, and the hot melt adhesive layer of the adhesive portion 9 applied to the adhesive surface is melted by heating by the induction heater to weld the waterproof sheet 3 to the adhesive portion 9 . As a result, the waterproof sheet 3 is fixed to the bonding portion 9, and the waterproof sheet 3 is supported on the roof base 2 via the screw 6 and the sheet fixture 1. If it adhere | attaches the several sheet fixing tool 1, fixation of the waterproof sheet 3 will be completed.

  Since the waterproof sheet 3 installed as described above also deteriorates with the passage of years, it is necessary to carry out a repair after a long period of time has passed.

Next, the repair of the waterproof sheet 3 will be described.
When the waterproof sheet 3 is to be repaired, first, as shown in FIG. 5, the old waterproof sheet 3 which has already been laid and fixed is extended along the outer peripheral portion of the circumferential recess 11 in the plate member 5. The cut 3a is inserted and cut out, and the waterproof sheet 3 of the cut out portion is removed from the sheet fixture 1. And as shown in FIG. 6, the plate-like member 17 for new repair (following, upper side plate shape) so that it may overlap from the upper side of the old plate-like member 5 (following, lower side plate-like member) installed already. The lower plate-like member 5 and the upper plate-like member 17 are connected by using the connecting portion 18 while placing the member).

The upper plate-like member 17 has the same configuration as the lower plate-like member 5, and a metal plate is formed by press working, and an insertion hole 19 as a second opening is provided in the central portion of the disc. An outer peripheral portion of the insertion hole 19 bulges upward, and an upper surface portion is provided with an adhesive portion 20 formed of a hot melt adhesive layer as a second sheet fixing portion to which the waterproof sheet 3 is fixed. . The upper plate-like member 17 is placed on the lower plate-like member 5 such that the insertion holes 19 of the upper plate-like member 17 overlap with the insertion holes 8 of the lower plate-like member 5. And the connection part 18 is mounted | worn from the upper side of the upper side plate-like member 17 mounted.
Therefore, the second member D2 that can be fixed to the roof foundation 2 by being connected to the first member D1 by the upper plate-like member 17 is configured.

  The connecting portion 18 is a cylindrical outer member 21 configured to be radially expanded in diameter, and a shaft-like inner member for expanding the outer member 21 by being vertically inserted through the inside of the outer member 21. And 22 are provided.

  The outer member 21 is integrally formed of a synthetic resin, and as shown in FIGS. 6 and 8, the outer member 21 and the annular portion 23 are circumferentially spaced apart from each other in the axial direction from the ridge portion 23. And a plurality of (four in the example shown in FIG. 6) legs 24 extending in a cantilever manner. The leg portion 24 is a strip-shaped arm portion 24A which is wide in the circumferential direction and narrow in the radial direction, and a locking portion which is located at a lower portion of the arm portion 24A and which prevents the inner member 22 from coming off. And a unit 24B.

  The collar portion 23 is larger in diameter than the insertion hole 19 of the upper plate-like member 17 and is provided so as to be able to be mounted on the outer peripheral portion of the insertion hole 19 of the upper plate-like member 17. The plurality of leg portions 24 are provided at positions where the radially outer side corresponds to the inner peripheral surface of the main body portion 13. When the outer member 21 is inserted into the mounting member 7 through the insertion hole 19 of the upper plate 17, the plurality of legs 24 are fitted while being slidably guided on the inner peripheral surface of the main body 13, and the hook 23 is the upper It mounts | wears with the state mounted in the outer peripheral part of the penetration hole 19 of the side plate-like member 17. As shown in FIG.

  The inner member 22 is formed in a substantially shaft shape having the shaft portions 25 and 26 at the center by integral molding of synthetic resin, and inserted in the vertical direction through the insertion hole 27 (see FIG. 6) inside the outer member 21 It is possible. The inner member 22 is configured to be held in position in the axial direction with respect to the outer member 21 by being inserted and inserted into the outer member 21.

  That is, as shown in FIGS. 6 and 8, the inner member 22 is engaged with the locking portion 24B of the leg 24 along with the insertion and insertion on the axial distal end side and the axial middle portion, respectively. Thus, there are provided locking portions 28, 29 for preventing the outward removal. Both the distal end side locking portion 28 and the middle side locking portion 29 form a level difference for locking over the entire circumferential direction. The distal end side shaft portion 25 positioned between the distal end side locking portion 28 and the middle side locking portion 29 is a proximal end side shaft portion 26 positioned above the middle side locking portion 26. It has a smaller diameter than that. Positioning ribs 30 are formed around the inner member 22 at intervals in the circumferential direction. The rib 30 provided on the proximal end side shaft portion is provided inside the outer member 21 so as to fit into the insertion hole 27.

  When the outer member 21 is inserted into the outer member 21 while manually pushing the inner member 22 from above with the outer member 21 inserted and attached to the attachment member 7, as shown in FIGS. 7 and 8, the middle side of the inner member 22. The hooking portion 29 elastically engages with the hooking portion 24B of the leg 24 to prevent it from coming off. At this time, since the proximal end side shaft portion 26 is provided with a large diameter, the leg portion 24 of the outer member 21 is pushed outward in the radial direction by elastic deformation, and the diameter is enlarged outward in the radial direction. Ru.

  The leg 24 and the opening 16 formed in the main body 13 of the mounting member 7 when inserting and inserting the outer member 21 into the inner member 22 and trying to spread the leg outward in the radial direction When the position is shifted in the circumferential direction, the diameter of the leg portion 24 can not be increased. At this time, the inner member 22 is inserted while rotating the outer member 21 to align in the circumferential direction.

  Then, with the insertion of the inner member 22, the locking portion 24B for preventing the detachment of the leg portion 24 is locked to the receiving portion 29 positioned at the axial intermediate portion of the inner member 22 to hold the position. The insertion and installation is complete. In this state, the inner member 22 is prevented from coming off.

  When the leg portion 24 is expanded in diameter with the insertion of the inner member 22, the leg portion 24 radially outwardly protrudes through the inside of the opening 16 formed in the main body portion 13 of the mounting member 7. As a result, the leg portion 24 of the outer member 21 is locked to the upper edge 16a (an example of the locking portion) of the opening 16 of the main body 13, and the outer member 21 is prevented from coming off with respect to the mounting member 7 It becomes a state. As a result, the upper plate-like member 17 is pressed by the flange portion 23 of the outer member 21, and the lower plate-like member 5 and the upper plate-like member 17 are connected.

  Thus, the lower side plate-like member 5 and the upper side plate-like member 17 are connected using the connecting portion 18, and the waterproof function by the waterproof sheet 3 repaired in this state is exhibited.

  However, in the state where the waterproof sheet 3 is laid, since the waterproof sheet 3 is only placed on the heat insulating material 4 in the range other than the installation place of the sheet fixture 1, for example, by the wind The waterproof sheet 3 may be fluttered due to the action of lift force and other factors. In such a case, the movement of the waterproof sheet is transmitted to the connecting portion 18, and the engagement between the inner member 22 and the outer member 21 is worn or deformed, etc. There is a risk that the engagement between the receiving portion 29 and the leg portion 24 of the outer member 21 may be released.

  As shown in FIG. 8, even when the engagement between the receiving portion 29 on the middle portion side of the inner member 22 and the leg portion 24 of the outer member 21 is released as described above, the leg portion 24 of the outer member 21 is Is locked to the receiving portion 28 located on the distal end side to prevent the inner member 22 from coming off.

  At this time, if the front end side receiving portion 28 as described above is not provided, the inner member 22 may be detached and lifted up largely due to the action of the lift force by the wind as described above, etc. . In this case, if the inner member 22 is in an oblique position and is stepped on from above or another object gets on the waterproof sheet, the waterproof sheet may be damaged.

  On the other hand, in the above configuration, the leg 24 of the outer member 21 is engaged with the receiving portion 28 positioned on the tip end, so the inner member 22 is not largely lifted upward, and the waterproof as described above It becomes easy to prevent breakage of the sheet.

  Similarly, with regard to the sheet fasteners 1 at other places, after the upper plate-like members 17 are installed, a new waterproof sheet 3 for repair is installed so as to be spread over them. Then, take the slack of the waterproof sheet 3 and apply an induction heating device (not shown) to the upper portion of the waterproof sheet 3 at a position corresponding to the newly installed upper plate-like member 17 and heat the induction heating device to heat the upper plate. The hot melt adhesive layer applied to the adhesive portion 20 of the second member 17 is melted to weld the waterproof sheet 3 to the adhesive portion 20. Thus, the waterproof sheet 3 is fixed to the bonding portion 20, and the waterproof sheet 3 is supported on the roof base 2 via the upper plate member 17, the connecting portion 18, the lower plate member 5, the mounting member 7, and the screw 6. Be done. If it adhere | attaches several sheet fixing tools 1, fixation of the waterproof sheet 3 for repair is completed.

  In the case of the sheet fixing tool 1 having the above-described configuration, when the repair work is performed, the outer member 21 is inserted through the mounting member 7 already installed, and then the inner member 22 is inserted and inserted while being inserted. We can cope with just simple task.

[Another embodiment]
(1) In the above embodiment, the plate member 5 and the mounting member 7 constituting the first member D1 are separately configured, but instead of this configuration, the plate member 5 and the mounting member 7 may be integrally formed of a metal material.

(2) In the above embodiment, the connecting portion 18 is inserted into the cylindrical outer member 21 configured to be able to expand in the radial direction and the outer member 21 so as to expand the diameter of the outer member 21. And a locking portion (upper edge) 16a for locking the outer member 21 expanded in diameter by the inner member 22 to the main body portion 13 of the mounting member 7. Instead, it may be configured as follows.

  As shown in FIG. 11, the sheet fixture 1 is provided with a lower plate-like member 5 having the same configuration as the lower plate-like member 5 in the above embodiment and an attachment member 7 having the same configuration as the attachment member 7. . That is, the mounting member 7 includes a cylindrical main body portion 13, a hooked portion 14, and a counterbore portion 15. However, in the mounting member 7, a female screw 35 is formed at the upper side of the inner peripheral portion. A boss member 36 screwable to the inner peripheral portion of the mounting member 7 and a screw 37 screwable to the inner peripheral portion of the boss member 36 are provided as the connecting portion 18.

  The boss member 36 is made of a synthetic resin material. As shown in FIG. 11, on the outer peripheral portion of the boss member 36, a male screw portion 38 which can be screwed to the female screw portion 35 of the mounting member 31 is formed. At the inner peripheral portion of the boss member 36, a female screw portion 39 to which the screw 37 can be screwed is formed.

  The upper plate-like member 17 has a disk shape, and is provided with an insertion hole 19 as a second opening at its central portion, and an adhesion portion 20 made of a hot melt adhesive layer is provided on the outer peripheral side of the insertion hole 19 The points to be done are the same as in the above embodiment. However, the insertion hole 19 in the upper plate-like member 17 is formed in such a size that the screw portion 37A of the screw 37 can be inserted but the head 37B of the screw 37 can not be inserted. The screw 37 is formed by a countersunk screw, and a counterbored portion 19 a is formed around the insertion hole 19 in the upper plate-like member 17.

  When the waterproof sheet 3 is to be repaired, as shown in FIG. 11, the waterproof sheet of the cut out portion is formed by cutting the cut 3 a in the circumferential direction at the center of the portion fixed by the sheet fixture 1. Remove 3 Then, as shown in FIG. 12, the upper plate-like member 17 is placed so as to overlap from the upper side of the lower plate-like member 5, and the screw 37 is inserted from the upper side to the female screw portion 39 of the boss member 36. Screw on and fix. At that time, the boss member 36 is screwed to a position slightly lower than the upper end of the cylindrical main body portion 13 so that the counterbore portion 19a of the upper plate-like member 17 is inserted. And the point which spreads and covers the new waterproof sheet 3 for repair from on the top, and fixes to the adhesion part 20 by heat welding is the same as the said embodiment.

(3) In the above embodiment, the new waterproof sheet 3 for repair is fixed to the adhesive portion 20 provided on the upper plate-like member 17 by thermal welding, but instead of this configuration, for example, as shown in FIG. As shown in FIG. 13, the upper plate-like member 17 is attached from the upper side of the new waterproof sheet 3 for repair and connected to the lower plate-like member 5 by the connecting portion 18 (specifically, the screw 40). The sheet 3 may be pressed and fixed. In this configuration, the upper plate-like member 17 is formed in a flat disk shape, and an insertion hole through which only the screw 40 can pass is formed at the center. The screw 40 is a countersunk screw, and a through hole is formed in the insertion hole of the upper plate-like member 17. Then, in the state where the upper side plate-like member 17 is attached, the upper side plate-like member 17 and the screw 40 are exposed, so it is preferable to cover by the waterproof cover body 41 which is one size larger than the upper side plate-like member 17. The waterproof cover body 41 may be attached and fixed to the outer surface of the upper plate-like member 17 with an adhesive or the like.

(4) In the above-mentioned embodiment, although the roof foundation 2 showed what was constituted by the slab made of reinforced concrete, it does not restrict to this, for example, the slab of a general floor, a balcony, the floor of a parking lot, A swimming pool floor, a surrounding wall, an inclined roof, a wall, etc. can target various parts in which a waterproof layer is installed.
Moreover, those structures are not restricted to reinforced concrete, For example, a wooden frame, a steel frame, a folded plate, a deck plate, etc. are not specifically limited.

(5) In the above embodiment, the waterproof sheet 3 is made of a sheet material made of a synthetic resin such as vinyl chloride, but the present invention is not limited to this. TPE << thermo plastic elastomer >> etc. may be used.

(6) In the above-mentioned embodiment, although the adhesion part showed what is constituted by a hot melt adhesion layer, it does not restrict to this, and may be constituted by other publicly known adhesives.

(7) In the above embodiment, the lower plate member is fixed to the waterproof base with a screw, but the screw is not limited to a screw, and a screw may be fixed using a plug anchor or a nail may be hammered and fixed. A configuration may be used.

  The present invention can be applied to a waterproof sheet fixing device for fixing a waterproof sheet provided along a waterproof base to the waterproof base.

Reference Signs List 2 waterproof base 3 waterproof sheet 5 upper surface 6 screw 7 cylindrical portion 8 first opening 9 first sheet fixing portion 15 head locking portion 16a locking portion 18 connecting portion 19 second opening 20 second sheet fixing portion 21 outer member 22 inner member 36 boss member 37 screw

Claims (5)

A waterproof sheet fixing device for fixing a waterproof sheet laid on a waterproof base to the waterproof base,
A first member having a first sheet fixing portion and fixable to the waterproof base by a nail or a screw;
A second member fixable to the waterproof foundation by being connected to the first member in a state of being disposed above the first member while having a second sheet fixing portion;
A connecting portion connecting the first member and the second member;
A first opening through which the nail or the screw can be inserted is formed in the first member,
A second opening is formed in the second member at a position corresponding to the first opening,
The said connection part is provided in the state over the said 1st opening part and the said 2nd opening part, and the waterproof sheet fixing tool which connects the said 1st member and the said 2nd member. The first member is provided with the first sheet fixing portion and a plate-like upper surface portion in which the first opening is formed, and extends in a tubular shape from the first opening toward the waterproof foundation side A tubular portion having a head locking portion for locking the head of the nail or the head of the screw inside the extended end;
The second member is a plate-like member in which the second sheet fixing portion is provided and the second opening is formed,
The waterproof sheet according to claim 1, wherein the connecting portion is locked to the inner peripheral portion of the cylindrical portion and to the second opening to connect the first member and the second member. Fixture. The connecting portion is provided with a cylindrical outer member configured to be able to radially expand in a radial direction, and a shaft-like inner member that causes the outer member to expand in diameter by being inserted into the outer member,
The waterproof sheet fastener according to claim 2, wherein the inner peripheral portion is provided with a locking portion to which the outer member expanded by the inner member is locked.   The waterproof sheet fastener according to claim 3, wherein the inner member is configured to be held in the axial direction with respect to the outer member by being inserted into the outer member. The waterproof according to claim 2, wherein the connecting portion is provided with a boss member which can be screwed to the inner peripheral portion of the cylindrical portion, and a screw which can be screwed to the inner peripheral portion of the boss member. Seat fixings.

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