JP7444576B2 - Water stop device - Google Patents

Description

The present invention relates to a water stop device.

2. Description of the Related Art Conventionally, a water stop device is known that includes a drainer that suppresses water from entering a building through a gap between an outer wall and a foundation of the building (see, for example, Patent Document 1).

Japanese Patent Application Publication No. 2017-95999

For this type of water stop device, it would be beneficial if a new configuration could be obtained that can further suppress water intrusion into a building, for example, in the event of a flood disaster such as heavy rain or river flooding.

Therefore, one of the objects of the present invention is, for example, to obtain a water stop device with a novel configuration that can further suppress water from entering a building.

The water stop device of the present invention includes, for example, a water stop sheet that extends along an outer wall of a building and covers at least a gap between the outer wall and the foundation of the building; and a holding means for holding the gap in a covered state.

According to such a configuration, for example, at least the gap between the outer wall and the foundation can be covered by the waterstop sheet and the holding means, so that it is possible to suppress water from entering the building through the gap. Further, for example, when the water stop sheet is pressed by water pressure, it comes into close contact with the outdoor side surface of the foundation, the outdoor side surface of the outer wall, etc., and the gap is closed by the water stop sheet. This makes it possible to further suppress water from entering the building.

Further, the water stop device described above includes, for example, a drainer that suppresses water from entering the building through the gap, and the water cutoff sheet integrally covers the drainer, the gap, and the foundation. According to such a configuration, for example, water drains, gaps, ventilation holes that may be provided in the foundation, etc. can be integrally covered with the water stop sheet, so that water intrusion into the building can be further suppressed.

Further, in the above water stop device, for example, the holding means is fixed to the magnetic member extending along the outer wall and fixed to the outer wall, and holding the upper end of the water stop sheet between them. and a magnet. According to such a configuration, for example, the magnetic member and the magnet can suppress the upper end portion of the water stop sheet from hanging downward with respect to the outer wall. Therefore, for example, the water stop sheet tends to remain in a position covering the gap. Further, for example, the upper end of the water stop sheet and the magnet can be held movably relative to the building within the vertical range of the magnetic member by a magnetic member extending along the outer wall. This allows, for example, the waterstop sheet to move when pulled downward by water pressure, and in turn allows it to come into close contact with the outdoor side of the foundation, the outdoor side of the outer wall, etc., and close the gap.

Further, in the water stop device, for example, the holding means includes an adsorbed member fixed to the outer wall, and an adsorption member provided at the upper end of the water stop sheet and adsorbed to the adsorbed member. . According to such a configuration, for example, it is possible to suppress the upper end portion of the water stop sheet from hanging downward with respect to the outer wall by the adsorbed member and the adsorbing member. Therefore, for example, the water stop sheet tends to remain in a position covering the gap.

Further, in the above water stop device, for example, the holding means has a first support that is provided at a corner of the building and holds a longitudinal end of the water stop sheet. According to such a configuration, for example, the end of the water stop sheet can be held at the protruding corner (corner) of the building using the first support. Thereby, for example, inconveniences such as the water stop sheet being routed along the protruding corner and a gap being created between the lower end of the water stop sheet and the installation surface can be easily suppressed.

Further, in the above water stop device, for example, the holding means extends between the first support and the second support provided with an interval in the longitudinal direction, and the first support and the second support. and a beam portion holding an upper end portion of the water stop sheet. According to such a configuration, the water stop sheet can be held using, for example, the beam portion extending between the first support and the second support. As a result, for example, the upper end of the water stop sheet is prevented from hanging downward with respect to the building, and in turn, the water stop sheet is likely to remain in a position covering the gap.

Further, in the above water stop device, for example, the water stop sheet includes a first portion extending along the outer wall and the foundation, and a second portion extending from the first portion along the installation surface of the foundation. The holding means includes a pressing member that presses the second portion toward the installation surface. According to such a configuration, for example, the second portion of the water stop sheet is prevented from being turned over by the wind by the pressing member, and the water stop sheet is likely to remain in a position covering the gap. Further, for example, the second portion and the installation surface are brought into close contact with each other by the pressing member, and as a result, water can be prevented from entering the building through the gap between the second portion and the installation surface.

According to the present invention, it is possible to obtain a water stop device with a novel configuration that can further suppress water intrusion into a building.

FIG. 1 is an exemplary and schematic perspective view of a water stop device according to an embodiment. FIG. 2 is an exemplary and schematic XZ sectional view of the water stop device of FIG. 1. FIG. 3 is an exemplary and schematic exploded perspective view of a portion of FIG. 1. FIG. 4 is an exemplary and schematic perspective view of a portion of a modified water stop device.

Exemplary embodiments and variations of the invention are disclosed below. The configurations of the embodiments and modified examples shown below, as well as the effects and effects brought about by the configurations, are examples. The present invention can be realized by configurations other than those disclosed in the following embodiments and modified examples. Further, according to the present invention, it is possible to obtain at least one of various effects (including derivative effects) obtained by the configuration.

Furthermore, the embodiments and modifications disclosed below include similar components. Therefore, in the following description, common reference numerals will be given to those similar components, and redundant explanation will be omitted. Note that in this specification, ordinal numbers are used only to distinguish parts, members, regions, positions, directions, etc., and do not indicate order or priority.

[Embodiment]
FIG. 1 is a perspective view of the water stop device 1 of the embodiment, and FIG. 2 is an XZ sectional view of FIG. 1. As shown in FIGS. 1 and 2, the water stop device 1 is installed inside the building 100 through a gap 110 between the outer wall 101 of the building 100 and the foundation 102, a ventilation hole (not shown) that may be provided in the foundation 102, etc. This is to prevent water from flooding. The water stop device 1 can simply and quickly stop water by installing the water stop sheet 10 on the outdoor side of the gap 110 or the foundation 102. The building 100 is, for example, an architectural structure such as a house, a building, a garage, a factory, a warehouse, or a store.

In the following description, three mutually orthogonal directions are defined for convenience. The X direction runs along the longitudinal direction (width direction) of the water stop sheet 10 (first sheet 10A) and along the depth direction (back and forth direction) of the building 100. The Y direction runs along the thickness direction of the water stop sheet 10 (first sheet 10A) and along the width direction (horizontal direction) of the building 100. The Z direction is along the height direction (vertical width direction) of the water stop sheet 10 (first sheet 10A) and along the height direction (vertical direction) of the building 100.

In addition, in the following explanation, for convenience, the X direction is also referred to as the front, the opposite direction to the X direction is also referred to as the rear, the Y direction is also referred to as the left, the opposite direction to the Y direction is also referred to as the right, and the Z direction is referred to as upward and the Z direction. The opposite direction may also be referred to as downward. In the following description, the installation surface 120 is a term used for convenience to mean a surface adjacent to the foundation 102 of the building 100, and is also referred to as the ground, floor surface, concrete surface, or the like.

In addition, in the following explanation, when there is a possibility that water such as rainwater may infiltrate from one space to the other space through the gap 110, the other space (downstream side) is defined as the indoor side, and one space (upstream side) is defined as the outdoor side. That is, the indoor side is the side where it is desired to prevent (prevent, suppress) water from entering with the water stop sheet 10, and the outdoor side is the side from which water that may enter is flowing.

As shown in FIG. 2, the foundation 102 is provided, for example, at least partially buried in the installation surface 120. A base 103 is fixed to the upper surface of the base 102 in the Z direction via a plurality of packings (not shown). In this embodiment, for example, a first passage 110a as a gap in the Z direction is provided between the foundation 102 and the foundation 103 in a portion where no packing is present.

The first passage 110a extends in the X direction and functions as an air passage (ventilation passage) for ventilation under the floor. That is, the first passage 110a communicates the gap 110 with the space under the floor. In other words, the first passage 110a constitutes a part of the gap 110 between the outer wall 101 and the foundation 102.

Further, the outer wall 101 is fixed to the outdoor surface of the base 103 via a plurality of vertical edges 104, a moisture-permeable waterproof sheet 105, and the like. In this embodiment, for example, a second passage 110b as a gap in the X direction is provided between the outer wall 101 and the moisture-permeable waterproof sheet 105 in a portion where the vertical furring 104 does not exist.

The second passage 110b extends in the Z direction and functions as an air passage (ventilation passage) for ventilation between the outer wall 101 and the indoor side (moisture-permeable waterproof sheet 105 side). That is, the second passage 110b communicates the gap 110 with the indoor space. In other words, the second passage 110b constitutes a part of the gap 110 between the outer wall 101 and the foundation 102.

In this embodiment, moisture under the floor or indoors can be discharged to the outdoors by movement of air through the first passage 110a and the second passage 110b. As a result, it is possible to reduce condensation under the floor or in the indoor space, and it is also possible to prevent the wood in the space from rotting, reducing its durability, and preventing mold from forming. Further, in this embodiment, the gap 110 including the first passage 110a and the second passage 110b is covered by the water stop device 1.

As shown in FIGS. 1 and 2, the water stop device 1 includes, for example, a water stop sheet 10, a drainer 20, and a holding means 30. The drainer 20 extends along the outer wall 101 (outer periphery) of the building 100, and is fixed to the aforementioned base 103 (see FIG. 2). The drainer 20 covers the first passage 110a from the outdoor side within the gap 110, and also covers the second passage 110b from below. This suppresses water from entering the building 100 through the gap 110.

The water stop sheet 10 covers the outdoor side surface 101a of the outer wall 101 and the outdoor side surface 102a of the foundation 102. The water stop sheet 10 has a height and length that can close off a predetermined area below the building 100 including the gap 110. The water stop sheet 10 is configured, for example, in the form of a horizontally long rectangular thin plate along the outer wall 101 (outer periphery) of the building 100.

The waterstop sheet 10 has water-blocking properties and functions as a waterproof sheet for the gap 110. Moreover, the water stop sheet 10 has flexibility and can be bent. The waterstop sheet 10 can be made of resin, rubber, or cloth whose surface is coated with resin, and is preferably made of a transparent material. Further, the water stop sheet 10 may be made of a material that can be deformed (expanded and contracted) by being pressed by water pressure Wp, for example.

Further, the water stop sheet 10 is configured by, for example, a combination of a plurality of parts (divided bodies) such as a first sheet 10A (see FIG. 1) and a second sheet 10B. The first sheet 10A and the second sheet 10B are lined up along the outer wall 101 (outer periphery) of the building 100. The water stop sheet 10 surrounds substantially the entire circumference of the building 100 by a plurality of parts (divided bodies) including a first sheet 10A and a second sheet 10B.

The length of the water stop sheet 10 is, for example, approximately the same as the distance between two adjacent projecting corners 107 in the building 100. In other words, the water stop sheet 10 is divided according to the number of projecting corners 107 of the building 100. In this embodiment, the first sheet 10A covers the gap 110 between the two protruding corners 107 adjacent in the X direction, and the second sheet 10B covers the gap 110 between the two protruding corners 107 adjacent in the Y direction including the inner corner 106. It covers the gap 110 between.

The height of the water stop sheet 10 in the Z direction is set, for example, based on which range upward from the installation surface 120 is covered and waterproofed by the water stop sheet 10. The outside corner 107 and the inside corner 106 are examples of corners.

Moreover, the water stop sheet 10 each has a first portion 11 and a second portion 12, for example. The first portion 11 is a portion of the waterstop sheet 10 that extends along the outer wall 101 and the foundation 102. The first portion 11 has an upper end 10a of the waterstop sheet 10 and a portion of both longitudinal ends 10c. The first part 11 is fixed to the outer wall 101 by a magnet 32 of the holding means 30. The first portion 11 is also referred to as a base portion or the like.

The second portion 12 is a portion of the waterstop sheet 10 that extends from the lower end of the first portion 11 along the installation surface 120. The second portion 12 includes a lower end 10b of the waterstop sheet 10 and a portion of both longitudinal ends 10c. The second portion 12 is fixed to the installation surface 120 by a pressing member 35 of the holding means 30. The second portion 12 is also referred to as a folded portion, an extension portion, or the like.

Further, the second portion 12 faces, for example, the dog run 40 fixed to the installation surface 120. The dog run 40 is configured in a flat shape, and has an installation surface 120 and an exposed surface 40a lined up in the XY plane. In other words, the dog run 40 constitutes a part of the installation surface 120. In this embodiment, the second portion 12 is sandwiched between the dogbashiri 40 and the pressing member 35, so that, for example, the second portion 12 is placed between the uneven installation surface 120 (ground, asphalt) and the pressing member 35. Compared to the case where it is sandwiched in between, the deterioration of water stop performance is suppressed.

FIG. 3 is an exploded perspective view of a portion of FIG. 1. As shown in FIG. 3, the holding means 30 includes, for example, a steel plate 31, a magnet 32, a corner post 33, a mounting portion 34, and a pressing member 35. The holding means 30 holds (fixes) the upper end 10a, the lower end 10b, both longitudinal ends 10c, etc. of the water stop sheet 10 to the building 100, thereby positioning the water stop sheet 10 in a position that covers the gap 110. (state, posture).

The steel plate 31 is configured, for example, in the shape of a rectangular strip extending long and thin along the outer wall 101 (outer periphery) of the building 100. The steel plate 31 is fixed to the outer wall 101 with a coupling device such as a screw or an anchor, an adhesive, double-sided tape, etc. while being spaced apart above the gap 110 (drainer 20). Steel plate 31 is an example of a magnetic member. Note that the magnetic member is not limited to this example, and may be, for example, a steel sheet or the like.

The magnet 32 is provided at the upper end 10a of the water stop sheet 10. In this embodiment, a plurality of magnets 32 are arranged at intervals in the longitudinal direction of the water stop sheet 10. The magnet 32 has, for example, a disk shape, and is housed in a pocket that can be provided in the waterstop sheet 10. Note that the magnet 32 is not limited to this example, and may be, for example, a magnetic bar extending along the longitudinal direction of the water stop sheet 10.

The upper end portion 10a of the water stop sheet 10 is fixed to the steel plate 31 and eventually to the outer wall 101 by the attraction force of the magnet 32. In this embodiment, the adsorption force of the magnet 32 prevents the upper end 10a of the water stopper sheet 10 from hanging downward with respect to the outer wall 101, and furthermore, the upper end 10a of the waterstop sheet 10 is ) can be held above.

Further, in this embodiment, for example, the upper end 10a of the water stop sheet 10 and the magnet 32 are held movably relative to the building 100 within the range of the steel plate 31 in the Z direction. This allows, for example, movement of the water stop sheet 10 when it is pulled downward by water pressure Wp (see FIG. 2), which in turn allows it to move against the outdoor surface 102a of the foundation 102, the outdoor surface 101a of the outer wall 101, etc. The gap 110 can be closed by being in close contact with each other.

The pressing member 35 is provided at the lower end portion 10b of the water stop sheet 10. The pressing member 35 presses the second portion 12 of the water stop sheet 10 that is folded back along the dog run 40 (installation surface 120) toward the dog run 40. The pressing member 35 is, for example, a plurality of plate-shaped flat bars arranged in the longitudinal direction of the water stop sheet 10, and is made of a metal material. The pressing member 35 is also referred to as a weight member or the like.

The pressing member 35 holds the second portion 12 of the water stop sheet 10 in close contact with the dog racer 40. This prevents the water stop sheet 10 from being blown over by the wind, and in turn allows the water stop sheet 10 to be kept in a position relative to the building 100 covering the gap 110. Furthermore, for example, it is possible to suppress water from entering the building 100 through the gap between the water stop sheet 10 and the dog run 40.

As shown in FIG. 3, the corner pillar 33 is provided, for example, corresponding to the protruding corner 107 of the building 100. The corner pillars 33 can hold both ends 10c of the water stop sheet 10 in the longitudinal direction. In this embodiment, the corner pillar 33 holds both ends 10c of the water stop sheet 10, so that the water stop sheet 10 is routed along the protruding corner 107, and the second portion 12 and the installation surface 120 are connected to each other. Inconveniences such as gaps occurring between the two are suppressed. The corner pillar 33 is an example of a first pillar.

The corner pillar 33 includes, for example, a base portion 33a, a pedestal portion 33b, a hook portion 33c, and a spacer 33d. The pedestal portion 33b is configured in a rectangular plate shape extending along the dog run 40. The pedestal portion 33b is provided with a plurality of openings 33b2 through which connectors 50 (see FIG. 1) such as screws and bolts for fixing the corner pillar 33 to the dog racer 40 pass through in the Z direction.

Further, a part of the second portion 12 (see FIG. 1) of the water stop sheet 10 is supported on the upper surface 33b1 of the pedestal portion 33b. The second portion 12 is fixed to the upper surface 33b1 with an adhesive tape, a pressing member 35, or the like, thereby suppressing water from entering the building 100 through the gap between the upper surface 33b1 and the second portion 12. can do.

As shown in FIG. 3, the base portion 33a is supported by, for example, the upper surface 33b1 of the pedestal portion 33b. The base portion 33a has two wall portions 33a1 extending along the outer wall 101 at the protruding corner 107. The wall portion 33a1 has a substantially L-shape that is open toward the protruding corner 107 when viewed in the Z direction.

For example, the spacer 33d is interposed between the outer wall 101 and the wall portion 33a1. The thickness of the spacer 33d is approximately the same as the width (the amount of protrusion toward the outdoors) of the drainer 20. The base portion 33a is supported by the outer wall 101 via a spacer 33d.

The hook portion 33c protrudes from the wall portion 33a1 toward the outdoors, for example. The wall portion 33a1 is provided with two hook portions 33c spaced apart from each other in the Z direction. The hook portion 33c is formed of, for example, a stud bolt having a head and a shaft portion, and has a substantially T-shaped cross section.

The attachment portions 34 are provided at both ends 10c of the waterstop sheet 10 in the longitudinal direction. The attachment portion 34 is configured in the shape of a rectangular strip extending in the Z direction, and holds both ends 10c of the waterstop sheet 10.

The mounting portion 34 is provided with an opening 34a corresponding to the hook portion 33c of the corner post 33. The opening 34a passes through the attachment portion 34 in the thickness direction (Y direction or X direction). The opening 34a includes, for example, a round hole 34a1 and a slit 34a2. The round hole portion 34a1 is also referred to as a large diameter portion, a first portion, etc., and the slit portion 34a2 is also referred to as a small diameter portion, a second portion, etc.

The slit portion 34a2 is configured, for example, to be able to accommodate the shaft portion of the hook portion 33c, but not to accommodate the head portion. The slit portion 34a2 is located above the round hole portion 34a1. The round hole portion 34a1 communicates with the slit portion 34a2 and is configured to accommodate the head of the hook portion 33c.

Therefore, the user lifts the attachment part 34 of the water stop sheet 10 to a position where the head of the hook part 33c and the round hole part 34a1 face each other in the thickness direction (Y direction or X direction), and 33, the head of the hook portion 33c is inserted into the round hole portion 34a1. Furthermore, when the user pushes down the attachment part 34, the shaft part of the hook part 33c enters into the slit part 34a2.

When the shaft portion of the hook portion 33c enters the slit portion 34a2, the peripheral edge of the slit portion 34a2 catches the head of the hook portion 33c, and the attachment portion 34 is prevented from moving toward the outdoors with respect to the hook portion 33c. be done. In this way, with the hook portion 33c and the opening 34a hooked to each other, the water stop sheet 10 is removed (moved) from the position covering the gap 110 (drainer 20) due to the hook portion 33c and the structure around it. is suppressed.

Next, an example of how to install the water stop device 1 will be described. First, the user installs the corner pillar 33 at the corner 107 of the building 100, and fixes the steel plate 31 to the outer wall 101 of the building 100 (S1). S1 is an example of the first step.

Next, the user spreads out the water stop sheet 10 and hooks the attachment parts 34 provided at both ends 10c in the longitudinal direction to the hook parts 33c of the corner pillars 33 (S2). S2 is an example of the second step.

Next, the user fixes the plurality of magnets 32 to the steel plate 31 along the longitudinal direction while sandwiching the upper end 10a of the water stop sheet 10 therebetween (S3). S3 is an example of the third step.

Next, the user folds back the lower end 10b of the water stop sheet 10 along the dogbashiri 40 (installation surface 120) to form the second part 12 (S4), and presses the second part 12 by the pressing member 35. 40 (S5). S4 is an example of the fourth step, and S5 is an example of the fifth step.

According to the present embodiment, the water stop sheet 10 can be installed simply and quickly through the steps S1 to S5 described above, thereby suppressing water from entering the building 100 through the gap 110. Note that when the water accumulated on the installation surface 120 subsides, the water stop device 1 can be removed by, for example, performing the steps S1 to S5 described above in reverse.

As described above, in this embodiment, for example, the water stop device 1 includes a water stop sheet 10 that extends along the outer wall 101 of the building 100 and covers at least the gap 110 between the outer wall 101 and the foundation 102 of the building 100. and a holding means 30 for holding the water stop sheet 10 in a state (attitude) covering the gap 110 with respect to the building 100.

According to such a configuration, for example, at least the gap 110 between the outer wall 101 and the foundation 102 can be covered by the waterstop sheet 10 and the holding means 30, so that water intrusion into the building 100 from the gap 110 is suppressed. be able to. Further, for example, when the water stop sheet 10 is pressed by the water pressure Wp, it comes into close contact with the outdoor side surface 102a of the foundation 102, the outdoor side surface 101a of the outer wall 101, etc., and the gap 110 is closed by the water stop sheet 10. I can escape. Thereby, water intrusion into the building 100 can be further suppressed.

Further, in this embodiment, for example, the water stop device 1 includes a drainer 20 that suppresses water from entering the building 100 through the gap 110, and the water stop sheet 10 integrates the drainer 20, the gap 110, and the foundation 102 into one piece. covered.

According to such a configuration, for example, the water cutoff sheet 10 can integrally cover the drain 20, the gap 110, the ventilation opening that may be provided in the foundation 102, etc., so that water intrusion into the building 100 can be further suppressed. can do.

Further, in this embodiment, for example, the holding means 30 is in a state in which a steel plate 31 (magnetic member) extending along the outer wall 101 and fixed to the outer wall 101 and the upper end 10a of the water stop sheet 10 are sandwiched therebetween. and a magnet 32 fixed to a steel plate 31.

According to such a configuration, for example, the steel plate 31 and the magnet 32 can prevent the upper end portion 10a of the water stopper sheet 10 from hanging downward with respect to the outer wall 101. Therefore, for example, the water stop sheet 10 tends to remain in a position covering the gap 110. Further, for example, the upper end 10a of the water stop sheet 10 and the magnet 32 can be held movably with respect to the building 100 within the range of the steel plate 31 in the Z direction by the steel plate 31 extending along the outer wall 101. can. This allows, for example, movement of the water stop sheet 10 when it is pulled downward by water pressure Wp (see FIG. 2), which in turn allows it to move against the outdoor surface 102a of the foundation 102, the outdoor surface 101a of the outer wall 101, etc. The gap 110 can be closed by being in close contact with each other.

Further, in the present embodiment, for example, the holding means 30 is provided at the protruding corner 107 (corner) of the building 100, and the corner pillar 33 ( The first pillar).

According to such a configuration, both ends 10c of the waterstop sheet 10 can be held at the projecting corner 107 of the building 100 using the corner pillar 33, for example. This prevents the inconvenience that, for example, the water stop sheet 10 is routed along the protruding corner 107 and a gap is created between the lower end 10b (second portion 12) of the water stop sheet 10 and the installation surface 120. easily suppressed.

Furthermore, in this embodiment, for example, the water stop sheet 10 includes a first portion 11 extending along the outer wall 101 and the foundation 102, and a second portion 12 extending from the first portion 11 along the installation surface 120 of the foundation 102. , and the holding means 30 has a pressing member 35 that presses the second portion 12 toward the installation surface 120.

According to such a configuration, for example, the second portion 12 of the water stop sheet 10 is prevented from being turned over by the wind by the pressing member 35, and as a result, the water stop sheet 10 tends to remain in a position covering the gap 110. Further, for example, the second portion 12 and the installation surface 120 are brought into close contact with each other by the pressing member 35, and as a result, water can be prevented from entering the building 100 through the gap between the second portion 12 and the installation surface 120. .

[Modified example]
FIG. 4 is a perspective view of a modified water stop device 1A. The water stop device 1A has the same configuration as the water stop device 1 of the above embodiment. Therefore, the water stop device 1A can obtain the same operation and effect as the above embodiment based on the same configuration.

However, in this modified example, as shown in FIG. 4, a corner pillar 36 is provided at the entrance corner 106 of the building 100, and a pillar 38 is provided apart from the corner pillar 36. There is a difference between The corner pillar 36 is an example of a second pillar or a first pillar, and the pillar 38 is an example of a second pillar.

The corner pillars 36 are provided at intervals in the longitudinal direction of the corner pillars 33 and the second sheet 10B. Like the corner pillar 33, the corner pillar 36 has a base part 36a, a pedestal part 36b, and the like. Further, a wire 37 is stretched between the corner pillar 33 and the corner pillar 36. The wire 37 is located above the gap 110 (colander 20). The wire 37 is an example of a beam portion.

Furthermore, a hook 32A is provided at the upper end 10a of the second sheet 10B. In this modification, the hooking fitting 32A is hooked on the wire 37, thereby suppressing the upper end 10a of the second sheet 10B from hanging downward with respect to the outer wall 101, and furthermore, the upper end 10a of the second sheet 10B is 110 (colander 20).

Further, in this modification, for example, the upper end portion 10a of the second sheet 10B and the hook 32A are held movably in the Z direction with respect to the wire 37. This allows the second sheet 10B to move when it is pulled downward by the water pressure Wp (see FIG. 2), which in turn allows it to come into close contact with the outdoor surface 102a of the foundation 102, the outdoor surface 101a of the outer wall 101, etc. The gap 110 can be closed.

Further, attachment portions 34 are provided at both ends 10c of the second sheet 10B in the longitudinal direction. In this modification, the attachment part 34 is hooked on the hook part 33c of the corner pillars 33, 36, so that the second sheet 10B is prevented from moving toward the outdoors from the position covering the gap 110 (drainer 20), and as a result, It is possible to suppress water from entering the building 100 through the gap between the second sheet 10B and the corner columns 33, 36.

Note that the second sheet 10B is not limited to this example, and for example, both ends 10c in the longitudinal direction may be fixed to the corner posts 33 and 36 with adhesive tape or the like. The second portion 12 of the second sheet 10B is fixed to the dog racer 40 by a pressing member 35.

The pillars 38 are provided at intervals in the longitudinal direction of the corner pillar 36 and the third sheet 10C of the water stop sheet 10. The pillar 38, like the corner pillar 36, has a base portion 38a, a pedestal portion 38b, and the like. Further, a steel plate 31 is spanned between the support column 38 and the corner column 36. The steel plate 31 is located above the gap 110 (drainer 20). The steel plate 31 is an example of a beam portion.

The upper end portion 10a of the third sheet 10C is fixed to the steel plate 31 and eventually to the outer wall 101 by the attraction force of the magnet 32. In this modification, the adsorption force of the magnet 32 prevents the upper end 10a of the third sheet 10C from hanging downward with respect to the outer wall 101, and furthermore, the upper end 10a of the third sheet 10C is ) can be held above.

Note that the upper end 10a of the third sheet 10C and the magnet 32 are movable with respect to the building 100 within the range of the steel plate 31 in the Z direction. Further, the third sheet 10C covers the gap 110 (drainer 20) by hooking the attachment parts 34 provided at both ends 10c in the longitudinal direction of the third sheet 10C to the hook parts 33c of the corner pillars 36 and the pillars 38. Movement from the location to the outdoors is suppressed. Further, the second portion 12 of the third sheet 10C is fixed to the dog racer 40 by a pressing member 35.

Furthermore, a mounting plate 39 is provided above the first sheet 10A. The mounting plate 39 is configured in the form of a rectangular band plate extending long and narrow along the outer wall 101 of the building 100. The mounting plate 39 is a plate made of, for example, a synthetic resin material, a metal material, or the like, and has a smooth surface onto which the suction cup 32B is attracted. The mounting plate 39 is fixed to the outer wall 101 with a coupling device such as a screw or an anchor, an adhesive, double-sided tape, etc., while being spaced apart above the gap 110 (drainer 20). The mounting plate 39 is an example of a member to be attracted.

The suction cup 32B is provided at the upper end portion 10a of the first sheet 10A. In this modification, a plurality of suction cups 32B are arranged at intervals in the longitudinal direction of the first sheet 10A. The suction cup 32B has, for example, a disk shape, and is fixed to the upper end portion 10a of the water stop sheet 10 via a string or by direct engagement (coupling). The suction cup 32B is an example of a suction member.

The first sheet 10A is fixed to the mounting plate 39 and eventually to the outer wall 101 by the suction force of the suction cup 32B. In this modification, the suction force of the suction cup 32B prevents the upper end 10a of the first sheet 10A from hanging downward with respect to the outer wall 101, and furthermore, the upper end 10a of the first sheet 10A is ) can be held above.

Although the embodiments and modified examples of the present invention have been illustrated above, the embodiments and modified examples described above are merely examples, and are not intended to limit the scope of the invention. The embodiments and modifications described above can be implemented in various other forms, and various omissions, substitutions, combinations, and changes can be made without departing from the gist of the invention. In addition, specifications such as each configuration, shape, etc. (structure, type, direction, format, size, length, width, thickness, height, number, arrangement, position, material, etc.) may be changed as appropriate. It can be implemented by

DESCRIPTION OF SYMBOLS 1, 1A... Water stop device, 10... Water stop sheet, 10a... Upper end part, 10c... Both ends (end parts), 11... First part, 12... Second part, 20... Drainer, 30... Holding means, 31... Steel plate (magnetic member, beam part), 32... Magnet, 32B... Suction cup (adsorption member), 33... Corner column (first column), 35... Pressing member, 36... Corner column (second column, first column) , 37... wire (beam part), 38... pillar (second pillar), 39... mounting plate (adsorbed member), 100... building, 101... outer wall, 102... foundation, 106... corner (corner), 107 ...Protruding corner (corner), 110... Gap, 120... Installation surface.

Claims (8)

a water stop sheet extending along the outer wall of the building and covering at least the gap between the outer wall and the foundation of the building;
holding means for holding the water stop sheet against the building in a state covering the gap;
The holding means includes a mounting portion provided at both longitudinal ends of the water stop sheet, and a first support provided at a corner of the building and holding both longitudinal ends of the water stop sheet. have,
The first support has two walls extending along the outer wall, and the wall has an L-shape, and a hook protrudes from the wall toward the outdoors,
The attachment portion includes an opening corresponding to the hook portion, and
Water stop device equipped with. A drainer is provided to suppress water from entering the building through the gap,
The water stop device according to claim 1, wherein the water stop sheet integrally covers the drainer, the gap, and the foundation. The holding means includes a magnetic member extending along the outer wall and fixed to the outer wall, and a magnet fixed to the magnetic member with the upper end of the water stop sheet sandwiched therebetween. Item 2. The water stop device according to item 1 or 2. 3. The holding means includes an adsorbed member fixed to the outer wall, and an adsorption member provided at an upper end of the water stop sheet and adsorbed to the adsorbed member. Water stop device. The holding means held the upper end portion of the water stop sheet between the first support and the second support provided with an interval in the longitudinal direction, and the first support and the second support. The water stop device according to claim 1 , comprising a beam portion. The waterstop sheet has a first portion extending along the outer wall and the foundation, and a second portion extending from the first portion along the installation surface of the foundation,
The water stop device according to any one of claims 1 to 5 , wherein the holding means includes a pressing member that presses the second portion toward the installation surface. The magnetic member is configured in the shape of a rectangular strip extending long and thin along the outer wall.
The water stop device according to claim 3. A plurality of the pressing members are provided, and the pressing members are in contact with each other,
The water stop device according to claim 6 .

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