JP2019120027A - Water cutoff sheet and water immersion preventing device - Google Patents

Abstract

To provide a post for a water immersion preventing device in which a construction is easy in introducing the water immersion preventing device and which can be easily and quickly installed in a structure.SOLUTION: A post 20 is installed in a structure S and holds a water cutoff sheet 30. The post 20 includes a post body portion 21 holding the water cutoff sheet 30 and a flange portion 22 connected to the post body portion 21. The flange portion 22 is detachably fixed to the structure S.SELECTED DRAWING: Figure 1

Description

  BACKGROUND OF THE INVENTION Field of the Invention The present invention relates to a water blocking sheet and a water immersion prevention device for preventing water immersion of a structure.

  When heavy rain or storm surge occurs, the structure may be flooded due to the inflow of rain water or seawater from the outside of the structure into the structure. In order to prevent such flooding, installation of a flood prevention device is performed at the opening of a structure, specifically at the entrance of a building or at the entrance of a subway station (for example, Patent Document 1).

  The water immersion prevention device disclosed in Patent Document 1 has a wall surface panel and a support that holds the wall surface panel. The columns are maintained upright by plugging into holes formed in the paved foundation. The hole is formed by embedding a bottomed box-like form in the base. When the flood prevention device is not in use, the post is pulled out of the hole and the lid is attached to the formwork forming the hole. That is, in the inundation prevention device, not only the wall panel but also the support post is removable. Therefore, it is possible to prevent the components of the water immersion prevention device from obstructing passage when the water immersion prevention device is not in use.

Patent No. 5681321 gazette

  However, in order to make it possible to install the inundation prevention device of Patent Document 1, it is necessary to form a hole in a foundation that has been paved with concrete or asphalt. Therefore, in order to make it possible to install the inundation prevention device, the work load in advance becomes large. In addition, it is also assumed that foreign substances such as sand, stones, insects and the like enter the hole from the gap between the mold and the lid when the water immersion prevention device is not used. In this case, it is necessary to remove foreign matter from the hole before inserting the support into the hole, and the installation of the support is delayed.

  The present invention has been made in consideration of the above points, and it is an object of the present invention to provide a post for a water immersion prevention device which can be easily and quickly attached to a structure with easy construction when introducing the water immersion prevention device. With the goal.

The first strut according to the invention is
It is a pillar attached to a structure and holding a waterproof sheet,
A column body for holding the water blocking sheet;
And a flange portion connected to the column body and removably fixed to the structure.

The second strut according to the invention is
It is a pillar attached to a structure and holding a waterproof sheet,
Holes or notches are provided for receiving fasteners utilized for removable attachment to the structure.

According to the invention, the first or second support is
A column body for holding the water blocking sheet;
And a flange connected to the column body.
Holes or notches may be provided in the flange portion for receiving fasteners used for attachment to the structure.

  The first or second post according to the present invention may further include a rib connected to the post body and the flange.

  In the first or second column according to the present invention, the flange portion is a first flange portion fixed to the wall portion of the structure, and a second flange portion fixed to the floor portion or the ground of the structure. , May be included.

  In the first or second support column according to the present invention, the flange portion may be located on the side where the water blocking sheet is to prevent flooding with respect to the support column main body.

  The first or second support column according to the present invention may further include a connector to which a connection member connected to the water blocking sheet is attached.

  The 1st or 2nd support | pillar by this invention WHEREIN: The notch opened toward the side which tries to prevent water immersion by the said water blocking sheet may be provided.

The flood prevention device according to the present invention is
Either of the first and second struts according to the invention as described above;
And a water blocking sheet held by the columns.

  In the water immersion prevention device according to the present invention, the water blocking sheet may have a sheet-like portion and a plurality of longitudinal rib portions arranged on the sheet-like portion so as to be windable.

  ADVANTAGE OF THE INVENTION According to this invention, the installation in the case of introduction of a water immersion prevention apparatus is easy, and can attach a support | pillar to a structure easily and rapidly.

FIG. 1 is a view for explaining an embodiment of the present invention, and is a perspective view showing a water immersion prevention device from the inside of a structure. FIG. 2 is a perspective view showing the water immersion prevention device of FIG. 1 from a direction different from that of FIG. FIG. 3 is a plan view showing the water immersion prevention device of FIG. 1 from the inside of the structure. FIG. 4 is a plan view showing the water immersion prevention device of FIG. 1 from the outside of the structure. FIG. 5 is a longitudinal sectional view showing the water immersion prevention device of FIG. FIG. 6 is a perspective view showing a column of the water immersion prevention device of FIG. FIG. 7 is a perspective view for explaining the installation method of the water blocking sheet of the water immersion prevention device. FIG. 8 is a top view for explaining the attachment method of the connection member of the water immersion prevention device of FIG. FIG. 9 is a perspective view for explaining a modification of the connecting member. 10 is a perspective view showing the connecting member of FIG. 9 in a state different from FIG.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. 1 to 10 are views for explaining an embodiment according to the present invention. Among these, FIG.1, FIG2 and FIG.4 is a perspective view shown in the state which installed the water immersion prevention apparatus in the structure, FIG. 3 is a top view shown in the state which installed the water protection apparatus in the structure. In the drawings attached to the present specification, for the sake of easy illustration and understanding, the scale, the dimensional ratio in the vertical and horizontal directions, etc. are appropriately changed from those of the actual one and exaggerated.

  The water immersion prevention device 10 is installed at the opening OP of the structure S to stop water, for the purpose of preventing water immersion of the structure S, and prevents water from flowing into the structure S through the opening OP. As an opening OP of the structure S to which the inundation prevention device 10 can be applied, an entrance to a building or a building such as a residence, and an entrance to an underground structure such as a subway station or an underground mall can be exemplified. Then, the inundation prevention device 10 prevents the inflow of the structure S of rainwater or seawater overflowing on a region (for example, a road) facing the opening OP due to heavy rain, flood, storm surge or the like. The water immersion prevention device 10 is installed at the opening OP in an emergency such as a natural disaster. On the other hand, the water immersion prevention device 10 can be removed from the opening OP at the time of normal use (when not in use).

  In the illustrated example, the opening OP in which the water immersion prevention device 10 is installed has a floor f and a pair of walls w located on both sides of the floor f. This opening OP constitutes an entrance located at the top of the stair st (see FIG. 1) leading to the underground facility. And this entrance and exit face external areas, such as a road where rain water, seawater, etc. can flow in and accumulate, and the water immersion prevention device 10 prevents water from flowing into the stairs st from the external area. In the following, the side where water penetration is to be prevented with reference to the opening OP and the water immersion prevention device 10 installed in the opening OP, that is, in the illustrated example, the side of the stairs is "inside" or "inside" The side of the area opposite to the inner side where the water to be stopped is accumulated is called "outside" or "outside side".

  As shown in FIGS. 1 to 4, the water immersion prevention device 10 includes, as main components, a column 20 and a water blocking sheet 30 held by the column 20. In the illustrated example, the apparatus 10 for preventing water immersion has a pair of columns 20. The water blocking sheet 30 is disposed between the pair of columns 20A and 20B, and the side edges thereof are held by the pair of columns 20A and 20B. The support 20 is disposed in contact with the floor f and the wall w. The water blocking sheet 30 is disposed in contact with the floor portion f. The post 20 and the water blocking sheet 30 realize water blocking at the opening OP.

  The illustrated water immersion prevention device 10 includes a support device 40 for supporting the water blocking sheet 30 from the inner IS, a pressing device 45 for pressing the water blocking sheet 30 toward the floor portion f, and a support for the water blocking sheet 30. 20 further includes a connecting device 50 for connecting to 20. The water stopping performance of the water immersion prevention device 10 can be stably ensured by the support device 40, the pressing device 45 and the connection device 50.

  Hereinafter, each component of the water immersion prevention device 10 will be described in order.

  First, the support 20 will be described. A first support column 20A (see FIG. 1) is provided corresponding to one of the pair of wall portions w partitioning the opening OP, and a second support column 20B (see FIG. 2) corresponding to the other of the pair of wall portions w Is provided. The pair of columns 20A and 20B are configured symmetrically in the left-right direction. The support 20 is fixed to the opening OP using the fixing tool 15. However, the support 20 is detachable from the opening OP.

  As shown in FIGS. 1 to 4, the column 20 has a column body 21 for holding the water blocking sheet 30 and a flange 22 connected to the column body 21 as main components. The flange portion 22 is connected to the column body 21 from the inside IS.

  The column main body portion 21 is formed with a groove 21a opened to the inner side in the width direction d1 and the upper side in the height direction d2. When the water immersion prevention device 10 is used, the water blocking sheet 30 has its side edge portion housed in the groove 21 a and is held upright by the column body 21. As shown in FIG. 6, the column main body 21 is formed to include two plate members. The two plate members forming the column main body 21 are separated from each other to form the groove 21a. As described later, it is preferable that the side edges of the column body 21 and the water blocking sheet 30 make watertight contact when the water immersion preventing device 10 exhibits the water blocking performance.

  As shown in FIGS. 1 and 2, the flange portion 22 is used for detachably fixing the support 20 to the structure S. In the illustrated example, the support column 20 has a first flange portion 22A and a second flange portion 22B as the flange portion 22. The first flange portion 22A is fixed to the wall portion w, and the second flange portion 22B is fixed to the floor portion f. However, in the case where the floor portion f is not provided in the opening OP, the second flange portion 22B is fixed to the ground. Each flange portion 22 is formed as a plate-like member. During use of the apparatus 10, the first flange 22A extends along the wall w and the second flange 22B extends along the floor f. It is preferable that the first flange portion 22A make watertight contact with the wall portion w, and that the second flange portion 22B make watertight contact with the floor portion f, in order that the water immersion prevention device 10 exerts water blocking performance. preferable.

  As shown in FIGS. 1 to 3, the support 20 is detachably fixed to the structure S using the fixture 15. The post 20 is provided with a hole or notch 24 for receiving the fixture 15. For example, a bolt or the like attached to the opening OP of the structure S can be adopted as the fixing tool 15.

  In the illustrated example, two notches 24a and 24b are provided in the first flange portion 22A, and a third notch 24c is provided in the second flange portion 22B. The two notches 24a and 24b provided in the first flange portion 22A are separated in the height direction d2. The respective notches 24a, 24b, 24c extend in the inward / outward direction d3 connecting the inner side IS and the outer side OS, respectively, orthogonal to the width direction d1. And each notch 24a, 24b, 24c extended linearly is opened to inner side IS, respectively. When such notches 24a, 24b, 24c are adopted, the support 20 is positioned relative to the structure S using the fixture 15 previously attached to the structure S or the fixture 15 temporarily attached. be able to. Further, since the two notches 24a and 24b provided in the first flange portion 22A are inclined with respect to the inner and outer direction d3 so as to be positioned on the upper side in the outer side OS, the support 20 is displaced inward from the outer side Accordingly, the sealing property between the second flange portion 22B and the floor portion f (or the ground) can be improved by the engagement of the fixing tool 15 with the first notch 24a and the second notch 24b. Similarly, since the notch 24c provided in the second flange portion 22B is inclined with respect to the inside and outside direction d3 so as to be positioned inside in the width direction at the outside OS, the post 20 is displaced from inside to outside. By the engagement between the fixture 15 and the third notch 24c, the sealability between the first flange portion 22A and the wall portion w can be improved.

  In addition, when using the notch 24, the fixing tool 15 may be non-removably fixed to the structure S at inner side IS. However, the support 20 may be provided with a hole for receiving the fixing tool 15 instead of the notch 24.

  The column main body portion 21 and the flange portion 22 can be manufactured by bending or welding a metal plate material. Moreover, it may replace with the board | plate material made of metal, may impregnate a fiber and a fiber, and may use the composite material containing a synthetic resin. Furthermore, in order to ensure the hermeticity between the flange portion 22 and the structure S, the sealing layer 23 (see FIG. 6) which is made of rubber, resin or the like and is deformable according to the surface property of the structure S is You may provide as a surface layer of 1 flange part 22A and intermediate | middle 1st flame | frame 22A.

  The illustrated column 20 further includes a rib 25 connected to the column body 21 and the flange 22. As shown in FIG. 6, the rib 25 connects the support column 21 and the flange 22. In the illustrated example, the column main body 21 holding the water blocking sheet 30 extends in the direction perpendicular to the in-out direction d3. Furthermore, the water blocking sheet 30 uses water pressure in the in-out direction d3 when the water immersion prevention device 10 is used. receive. The plate-like flange portion 22 connected to the column body 21 extends in the inward and outward direction. And the rib 25 is arrange | positioned between such a support | pillar main-body part 21 and the flange part 22, and can reinforce the support | pillar 20 effectively.

  In the illustrated example, a plurality of ribs 25, more specifically, five ribs 25 are provided at intervals in the height direction d2. Each rib 25 includes a first plate 25a fixed on the column main body 21, a second plate 25b fixed on the first flange 22A, a first plate 25a, and a second plate 25b. And a connecting plate portion 25c to be connected. The first plate portion 25a, the second plate portion 25b, and the connection plate portion 25c are each formed in a plate shape. In order to make the reinforcing function by the ribs 25 more effective, it is preferable that the connecting plate portion 25c extends in the inside and outside direction d3.

  Furthermore, as shown in FIGS. 1 to 3, the support 20 has a connector 28 to which a connection member 51 described later of the connection device 50 is attached. The connector 28 can adopt various configurations corresponding to the configuration of the connection member 51. As shown in FIGS. 6 and 8, the connector 28 can be configured as a supported ring-like member of the post 20. The connector 28 is supported by the rib 25. The connector 28 can be made of metal, for example.

  Next, the water blocking sheet 30 will be described. The water blocking sheet 30 is a member which is held between the pair of columns 20A and 20B and blocks water flow from the outer OS to the inner IS. In the present embodiment, the configuration of the water blocking sheet 30 is not particularly limited, and various configurations can be adopted. In the following, although the water blocking sheet 30 configured so as to be windable is illustrated, the present invention is not limited to the following specific example, and a panel-like configuration that can not be wound is adopted as the configuration of the water blocking sheet 30 It is also good.

  The water blocking sheet 30 has, as a main component, a sheet-like water blocking sheet main body 31 which spreads between the pair of columns 20A and 20B. Further, the water blocking sheet 30 has side plates 34 and contact members 35 respectively provided on both side edges of the water blocking sheet main body 31 in order to ensure the tightness between the widthwise both side edges of the water blocking sheet 30 and the columns 20. Have. Furthermore, the water blocking sheet 30 is a lower portion provided at the lower edge of the water blocking sheet main body 31 in order to ensure the tightness between the lower edge in the height direction d3 of the water blocking sheet 30 and the floor f (or the ground). An abutment member 36 is provided.

  First, the water blocking sheet main body 31 will be described. The illustrated water blocking sheet main body 31 has a sheet-like portion 32 having a first surface 32 a and a second surface 32 b, and a plurality of linear rib portions 33 provided on the first surface 32 a of the sheet-like portion 32. ,have. The first surface 32 a of the sheet-like portion 32 is a surface facing the outer side OS, and the second surface 32 b is a surface facing the inner side IS. Therefore, the linear rib portion 33 protrudes from the sheet-like portion 32 toward the outside OS. Each linear rib portion 33 linearly extends in the height direction d2. The length in the height direction of the linear rib portion 33 can be the same as the length in the height direction of the sheet-like portion 32. The plurality of linear rib portions 33 are arranged in the width direction d1. The plurality of linear rib portions 33 are arranged on the sheet-like portion 32 with a gap. Therefore, the skin portion (first surface 32a) of the sheet-like portion 32 is exposed between the two linear rib portions 33 adjacent in the width direction d1. When the water blocking sheet 30 is wound, the water blocking sheet main body 31 mainly bends in this skin portion. Further, from the viewpoint of achieving uniform winding, it is preferable that the sheet-like portion 32 have a certain thickness, and the plurality of linear rib portions 33 have the same configuration and be regularly arranged. .

  It is preferable that the water blocking sheet main body 31 be formed using a composite material including a fiber and a synthetic resin impregnated in the fiber. Such a water blocking sheet main body 31 can realize weight reduction as well as having necessary strength.

  The sheet-like portion 32 may include fibers and a synthetic resin impregnated in the fibers. Specifically, a sheet-like portion 32 formed by impregnating a fibrous base material with a synthetic resin can be employed. Examples of fibrous substrates include woven fabrics, knitted fabrics and non-woven fabrics, with woven fabrics being more preferred. Although it does not specifically limit as a fiber which comprises the fibrous base material, Glass fiber and carbon fiber are preferable, and glass fiber is more preferable. Examples of the carbon fiber include PAN-based carbon fiber and PITCH-based carbon fiber. As glass fiber, E glass fiber etc. are mentioned, for example.

  The synthetic resin impregnated in the fibrous base material may be either a thermoplastic resin or a thermosetting resin. As a thermoplastic resin, polyolefin resin, polyester resin, polyester resin, a polyamide resin etc. are preferable, for example. As a thermosetting resin, an epoxy resin, unsaturated polyester resin, a phenol resin, a melamine resin, a polyurethane resin etc. are mentioned, A unsaturated polyester resin and an epoxy resin are preferable.

  The linear rib portion 33 may include a core portion containing a synthetic resin and a skin layer covering at least a part of the core portion. The linear rib portion 33 includes a synthetic resin and is formed in a straight bar shape having a predetermined length. As a synthetic resin which comprises a core part, the same synthetic resin as a synthetic resin contained in sheet-like part 32 can be used.

  At least a part of the surface of the core portion may be covered with the skin layer to constitute the linear rib portion 33. Specifically, the skin layer contains a resin-impregnated fiber. The resin-impregnated fiber includes a fibrous reinforcing material and a synthetic resin impregnated in the fibrous reinforcing material. The skin layer is formed by laminating and integrating a fibrous reinforcing material and a sheet containing a synthetic resin impregnated in the fibrous reinforcing material on the core along the surface of the core.

  The fibrous reinforcing material may, for example, be a woven fabric, a knitted fabric or a non-woven fabric, with a woven fabric being more preferred. The fibers constituting the fibrous reinforcing material are not particularly limited, but glass fibers and carbon fibers are preferable, and glass fibers are more preferable. Examples of the carbon fiber include PAN-based carbon fiber and PITCH-based carbon fiber. As glass fiber, E glass fiber etc. are mentioned, for example.

  The synthetic resin impregnated in the fibrous reinforcing material may be either a thermoplastic resin or a thermosetting resin. As a thermoplastic resin, polyolefin resin, polyester resin, polyester resin, a polyamide resin etc. are preferable, for example. As a thermosetting resin, an epoxy resin, unsaturated polyester resin, a phenol resin, a melamine resin, a polyurethane resin etc. are mentioned, A unsaturated polyester resin and an epoxy resin are preferable.

  The dimension along the height direction d2 of the water blocking sheet main body 31 is not particularly limited. The dimension along the width direction d1 of the water blocking sheet main body 31 can be made slightly shorter than the spacing between the pair of columns 20A, 20B or the spacing between the pair of columns 20A, 20B.

  As shown in FIGS. 4 and 8, the side plate 34 is fixed to the side edge of the water blocking sheet main body 31 in the width direction d <b> 1 using a fastener 38. A combination of bolts and nuts can be used as the fasteners 38. The lower end of the side plate 34 is at the same position as the lower end of the water blocking sheet main body 31 in the height direction d2. The side plate 34 may be made of a rigid metal or synthetic resin strip material. In the illustrated example, the side plate 34 extends outward beyond the water blocking sheet main body 31 in the width direction d1. When the water blocking sheet 30 is held by the column 20, this extended portion of the side plate 34 is positioned in the groove 21 a of the column 20.

  In order to improve the tightness between the water blocking sheet 30 and the support 20, a contact member 35 is stacked on the side plate 34. The contact member 35 is a layer that is made of rubber, resin, sponge material or the like, and that can be deformed in accordance with the surface properties of the support 20 (support main body 21) structure S. When the water blocking sheet 30 is held by the column 20, the contact member 35 is disposed in the groove 21 a of the column 20 together with the side plate 34 and comes into contact with the column 20. The contact member 35 is bonded to the surface of the side plate 34 as an example.

  In the illustrated example, the side plate 34 is connected to the water blocking sheet main body 31 from the outer side OS, but the side plate 34 may be connected to the water blocking sheet main body 31 from the inner side IS. Also, in the illustrated example, the abutting member 35 is stacked on the side plate 34 from both sides of the inner IS and the outer OS, but the present invention is not limited to this example, and may be stacked from any one side of the inner IS and the outer OS. It may be Also, the water blocking sheet 30 has a means for pressing the side edge of the water blocking sheet 30 toward the support 20 instead of or in addition to the side plate 34 and the abutting member 35. You may do so.

  Next, the lower contact member 36 will be described. As shown in FIGS. 4 and 5, the lower contact member 36 is laid between the water blocking sheet 30 and the floor portion f (or the ground) when the water blocking sheet 30 is held by the columns 20. . The lower contact member 36 secures the tightness between the water blocking sheet 30 and the floor portion f (or the ground). The lower contact member 36 is, for example, a belt-like member made of a soft resin sheet such as a foamed resin sheet. The lower contact member 36 has a constant thickness along the width direction d1 in order to ensure uniform sealing along the width direction d1. In the illustrated example, the lower abutment member 36 is connected to the lower edge of the sheet 32 as a part of the water blocking sheet 30. However, the present invention is not limited to this example, and the lower contact member 36 may be configured as a member different from the water blocking sheet 30.

  Next, the support device 40 shown in FIGS. 1 to 3 and FIG. 7 will be described. The support device 40 is a member for supporting the water blocking sheet 30 supported between the pair of columns 20A and 20B from the inner side IS, as described above. When the water immersion prevention device 10 is used, the water blocking sheet 30 receives water pressure from the outside OS at the time of water blocking. The support device 40 supports the water blocking sheet 30 from the inner side IS, and restricts deformation of the water blocking sheet 30 by water pressure, and in particular, curving so as to be convex on the inner side IS. This makes it possible to stably hold the water blocking sheet 30 between the pair of columns 20A and 20B.

  In the illustrated example, the support device 40 includes a plate-like or rod-like facing support member (a wedging member) 41 extending in the width direction d1, a holding member 42 for holding the facing support member 41, and a facing support member 41. And 42 a fastener 43 fixed to the housing. The opposing support member 41 is located facing the lower part of the water blocking sheet 30 between the pair of columns 20A and 20B. The opposing support member 41 may be in contact with the water blocking sheet 30 or may be located slightly apart from the water blocking sheet 30 on the inner side IS. It is preferable that the opposing support member 41 faces the water blocking sheet 30 from the inside IS over substantially the entire width. The holding member 42 is detachably fixed on the floor portion f (or the ground) by a fastener such as a bolt. The holding member 42 has a seat portion 42 a fixed to the floor portion f (or the ground) and an upright portion 42 b standing from the seat portion 42 a. The opposing support member 41 is detachably fixed to the rising portion 42 b using the fastener 43.

  In the example shown in FIG. 3, a single opposing support member 41 is provided over substantially the entire width of the water blocking sheet 30. However, the present invention is not limited to this example, and as shown in FIG. 7, two or more opposing support members 41 may be arranged in the width direction d1. According to the example shown in FIG. 7, the plurality of opposing support members 41 support the water blocking sheet 30 from the inside IS over substantially the entire width.

  Next, the pressing device 45 shown in FIGS. 3, 5 and 7 will be described. As described above, the pressing device 45 presses the water blocking sheet 30 against the floor f (or the ground), and the water blocking sheet 30 (in the illustrated example, the lower contact member 36) and the floor f (or the ground Improve the sealing between) and.

  In the illustrated example, a plurality of pressing devices 45 are provided separately in the width direction d1. In the example shown in FIG. 3, two pressing devices 45 are provided, and in the example shown in FIG. 7, four pressing devices 45 are provided. Each pressing device 45 has a pressing member 46 connected to the upper portion of the water blocking sheet 30 and the supporting device 40. The pressing member 46 generates a tensile force between the upper portion of the water blocking sheet 30 and the support device 40 located below the upper portion of the water blocking sheet 30, and the water blocking sheet 30 is directed downward. Compress.

  The illustrated pressing member 46 has a pressing belt body 47 elastically deformable due to its structure and material, and a first attachment 48a and a second attachment 48b connected to the pressing belt body 47. There is. The first fixture 48 a is connectable to the upper portion of the water blocking sheet 30, and the second fixture 48 b is connectable to the opposing support member 41 of the support device 40. The pressing belt body 47 is configured as a belt made of rubber or resin as a specific configuration. The first attachment 48 a is configured as a hook that can be hooked to the upper end of the water blocking sheet 30. The second fixture 48 b is configured as a hook or ring that can be hooked on the opposing support member 41. The length of the pressing belt body 47 between the first attachment 48a and the second attachment 48b is adjustable. The length of the pressing belt body 47 is adjusted to be shorter than the length from the upper end of the water blocking sheet 30 to the opposing support member 41.

  Next, the connection device 50 shown in FIGS. 1 to 3 and FIGS. 6 and 8 will be described. The connection device 50 is a member that connects the water blocking sheet 30 and the support 20. By using the connection device 50, the water blocking sheet 30 can be drawn toward the support 20. Thereby, the water blocking sheet 30 can be effectively prevented from coming off the support column 20. Further, in the illustrated example, the connection device 50 connects the water blocking sheet 30 and the support 20 at an inner side IS than the water blocking sheet 30. Therefore, it is possible to effectively prevent the water blocking sheet 30 from falling toward the outer side OS. For example, even when a foot or the like comes in contact with the water blocking sheet 30 when the water blocking sheet 30 is straddled from the inner side IS to the outer side OS, the water stopping sheet 30 can be stably maintained in a standing state.

  In the illustrated example, a total of two connecting devices 50 are provided spaced apart in the width direction d1, and each support column 20 and the water blocking sheet 30 are connected by different connecting devices 50, respectively. However, the present invention is not limited to this example, and one post 20 and the water blocking sheet 30 may be connected by a plurality of connecting devices 50 provided separately in the height direction d2. Each connecting device 50 has a connecting member 51 connected to the water blocking sheet 30 and the support 20. The connection member 51 generates a tensile force between the water blocking sheet 30 and the column 20 to draw the water blocking sheet 30 toward the column 20 in the width direction. Thus, the water blocking sheet 30 can be maintained in a stretched state between the pair of columns 20A and 20B.

  The illustrated connecting member 51 has a connecting belt body 52 elastically deformable due to its structure and material, and a first fixture 53a and a second fixture 53b connected to the connecting belt body 52. There is. As shown in FIG. 8, the first attachment 53 a is attachable to the holder 37 fixed to the water blocking sheet 30. On the other hand, the second fixture 53 b can be attached to the connector 28 fixed to the support 20. In the illustrated example, the holder 37 and the connector 28 are each formed as a ring-shaped member. On the other hand, the first attachment 53 a and the second attachment 53 b are formed as hooks that can be attached to and detached from the ring-shaped member. The connecting belt body 52 is configured as a belt made of rubber or resin as a specific configuration. Further, the length of the pressing belt body 47 between the first attachment 53 a and the second attachment 53 b is adjustable.

  Next, the usage method of the water immersion prevention apparatus 10 which consists of the above structures is demonstrated.

  The water immersion prevention device 10 is not installed at the opening OP of the structure S when not in use. Therefore, the pillar 20 of the water immersion prevention device 10 and the water blocking sheet 30 are not installed at the opening OP of the structure S in a normal state in which no abnormality such as natural disaster occurs. Therefore, passage or the like at the opening OP of the structure S is not hindered due to the water immersion prevention device 10. The water immersion prevention device 10 removed from the opening OP is collectively stored. At this time, the water blocking sheet 30 is wound so that the sheet-like portion 32 is positioned on the inner circumferential side and the linear rib portion 33 is positioned on the outer circumferential side. Therefore, the storage location of the water immersion prevention device 10 can be saved.

  Next, in order to prevent the inflow of water to the inner side IS of the structure S through the opening OP, the inundation prevention device 10 is installed in the opening OP when an abnormality such as heavy rain, flood, storm surge or the like occurs. By installing the water immersion prevention device 10 at the opening OP, it is possible to stop the water and prevent the structure S from being flooded.

  First, the first support 20A and the second support 20B are fixed to the structure S. Specifically, each support 20 is fixed to the structure S using the fixing tool 15. In the illustrated example, the support 20 has a plate-like flange portion 22. Therefore, by matching the plate surface of the flange portion 22 with the structure S, the support 20 can be fixed at a predetermined position. In particular, in the illustrated example, the flange portion 22 has a first flange portion 22A corresponding to the wall portion w and a second flange portion 22B corresponding to the floor portion f. Therefore, the support 20 can be easily positioned at a predetermined position.

  Furthermore, the support 20 is formed with a notch 24 for receiving the fixture 15. The notch 24 extends generally in the inward / outward direction d3 and opens inward. Therefore, by inserting the fixing tool 15 temporarily fixed to the structure S into the notch 24, the support 20 can be easily aligned with the structure S. As described above, the first support 20A and the second support 20B can be installed and fixed.

  A sealing layer 23 is provided in a portion facing the wall portion w of the first flange portion 22A and a portion facing the floor portion f of the second flange portion 22B. The sealing layer 23 may be formed of a material that is easily deformed in accordance with the surface properties of the structure S, as compared with the other portions of the support 20 that require high rigidity as the holding portion of the water blocking sheet 30. By providing the sealing layer 23, it is possible to effectively improve the sealing property between the removable support 20 and the structure S while providing the support 20 with high rigidity.

  Next, the water blocking sheet 30 is installed between the pair of columns 20A and 20B. First, the water blocking sheet 30 wound as shown in FIG. 7 is developed. The deployment of the water blocking sheet 30 may be performed either before or after the installation of the columns 20, and may be performed in parallel with the installation of the columns 20. The expansion of the water blocking sheet 30 may be simply performed by simply unrolling the water blocking sheet 30, which is extremely simple and can be performed at the opening OP which is the installation place. Therefore, it is possible to enjoy the advantage of being able to transport in a compact state in which the water blocking sheet 30 is wound from the storage location to the opening OP.

  Next, the side edges of the water blocking sheet 30 are inserted or pressed into the grooves 21 a of the corresponding columns 20 respectively. At this time, the water blocking sheet 30 is positioned so that the lower contact member 36 of the water blocking sheet 30 is positioned between the water blocking sheet main body 31 and the floor portion f (or the ground). Thereby, the water blocking sheet 30 can be installed between the pair of columns 20A and 20B.

  The water blocking sheet 30 is installed such that the linear rib portion 33 of the water blocking sheet main body 31 faces the outer side OS. According to this arrangement, even if water pressure acts on the inner side IS from the outer side OS, the adjacent linear rib portions 33 interfere with each other so that the water blocking sheet 30 becomes convex on the inner side IS with a small radius of curvature. It is possible to prevent bending. Thereby, the water pressure acting on the water blocking sheet 30 from the outer OS toward the inner IS effectively prevents the side edges of the water blocking sheet 30 from coming out of the groove 21 a of the support 20, thereby a pair of support The water blocking sheet 30 can be stably held between 20A and 20B.

  Thereafter, the support device 40, the pressing device 45 and the connection device 50 are installed. In the illustrated example, the pressing device 45 is installed after the supporting device 40, but the order of installation is not particularly limited. Therefore, the connecting device 50 may be installed in front of the pressing device 45, or the connecting device 50 may be installed in front of the supporting device 40 and the pressing device 45, or the supporting device 40 and the pressing device 45. The connection device 50 may be installed later.

  First, in order to install the supporting device 40, fixing of the opposing supporting member 41 to the holding member 42 and fixing of the holding member 42 to the floor portion f (or the ground) are performed. Either of the fixing of the opposing support member 41 to the holding member 42 and the fixing of the holding member 42 to the floor portion f (or the ground) may be performed first. The support device 40 installed in this way can receive from the inner IS the water blocking sheet 30 that is hydraulically pushed toward the inner IS. Thereby, the deformation | transformation which the central part in the width direction d1 of the water blocking sheet 30 bends inside IS effectively is suppressed, and as a result, the water blocking sheet 30 can be stably hold | maintained by the support | pillar 20.

  Next, in order to install the pressing device 45, first, the length of the pressing belt body 47 is adjusted. Thereafter, the first attachment 48 a is hooked on the upper end of the water blocking sheet 30, and the second attachment 48 b is hooked on the opposing support member 41. As a result, the pressing belt body 47 whose length is adjusted generates a force of pulling the upper end of the water blocking sheet 30 downward toward the opposing support member 41. According to the pressing device 45 installed in this manner, the lower edge of the water blocking sheet main body 31 can strongly press the water blocking sheet 30 toward the floor portion f (or the ground), and Water leakage between the floor portion f (or the ground) can be effectively prevented. In addition, while the water blocking sheet 30 can be bent in the width direction d1, it has excellent buckling resistance by having the linear rib portion 33 extending in the height direction d2. Therefore, by using the pressing device 45, the water blocking performance of the water immersion prevention device 10 can be effectively improved.

  Finally, in order to install the connecting device 50, first, the length of the connecting belt body 52 is adjusted. Thereafter, the first attachment 53 a is attached to the holder 37 of the water blocking sheet 30, and the second attachment 53 b is attached to the connector 28 of the support 20. As a result, the length-adjusted connecting belt body 52 generates a force for drawing the water blocking sheet 30 toward the corresponding support column 20. According to the connection device 50 installed in this manner, it is possible to effectively prevent the side edge of the water blocking sheet 30 from coming out of the groove 21 a of the support column 20 in the width direction d1. Thereby, the water blocking sheet 30 can be stably held by the support 20. Further, since the connection device 50 is disposed on the inner side IS of the water blocking sheet 30, the connection device 50 can prevent the water blocking sheet 30 from falling to the outer side OS. For example, even if the foot or the like of a person straddling the water blocking sheet 30 from the inner side IS to the outer side OS contacts the water blocking sheet 30, the water blocking sheet 30 can be stably maintained upright.

  The supporting device 40, the pressing device 45, and the connecting device 50 are all disposed on the inner side IS with respect to the water blocking sheet 30. Although the installation of the water immersion prevention device 10 will often be carried out in rain, a roof may be installed inside the water blocking sheet 30. Therefore, when installing the support apparatus 40, the pressing apparatus 45, and the connection apparatus 50 in inner side IS of the water stop sheet 30, workability | operativity can be improved remarkably compared with installing in outer side OS. In addition, water blocked by the water blocking sheet 30 is present on the outer side OS than the water blocking sheet 30. In addition to the fact that the installation work in the blocked water can be avoided, immersion of the supporting device 40, the pressing device 45 and the connecting device 50 in the blocked water can also be avoided. As a result, significant deterioration of the support device 40, the pressing device 45 and the connection device 50 can be avoided, and the life of the support device 40, the pressing device 45 and the connection device 50 can be extended.

  According to the above procedure, the water immersion prevention device 10 can be installed in the opening OP of the structure S. The water immersion prevention device 10 can stop water by blocking water at the opening OP of the structure S, and can prevent the flow into the structure S. Thereby, the flooding of the structure S can be prevented.

  In addition, when there is no need for water blocking, the water immersion prevention device 10 can be removed from the opening OP of the structure S by the reverse procedure to the above-described procedure. In the illustrated example, the lower contact member 36 is configured as a part of the water blocking sheet 30. Such a water blocking sheet 30 can be wound together with the water blocking sheet main body 31 in a state where the lower contact member 36 hangs down from the water blocking sheet main body 31 as shown in FIG. 7.

  In the embodiment described above, the support 20 includes the support main body 21 for holding the water blocking sheet 30, and the flange 22 connected to the support main body 21 and detachably fixed to the structure S. Have. The columns 20 are columns from the opening OP of the structure S, specifically, from the entrance of a building or the entrance of a subway station, etc., when no inundation prevention device 10 is used, that is, when no abnormality such as bad weather occurs. 20 can be removed. By removing the column 20 together with the water blocking sheet 30, it is possible to effectively prevent the passage of the structure S at the opening OP in the normal state. On the other hand, when the water immersion prevention device 10 is installed, the support 20 can be installed easily and quickly by fixing the flange portion 22 to the structure S. Further, for example, by adjusting the size and the like of the flange portion 22, the support 20 can be firmly attached to the structure S, and sealing between the support 20 and the structure S is secured to prevent water leakage. It can be effectively prevented. It is necessary to be able to fix the flange portion 22 to the structure S at the time of introduction of the water immersion prevention device 10 having such a column 20, but such an operation requires a ground for inserting the column 20 in the prior art. The work load can be significantly reduced as compared with forming it.

  Also, in the embodiment described above, a hole or notch 24 is provided for receiving the fixture 15 used for removable attachment to the structure S. The columns 20 are columns from the opening OP of the structure S, specifically, from the entrance of a building or the entrance of a subway station, etc., when no inundation prevention device 10 is used, that is, when no abnormality such as bad weather occurs. 20 can be removed. By removing the column 20 together with the water blocking sheet 30, it is possible to effectively prevent the passage of the structure S at the opening OP in the normal state. On the other hand, when installing the water immersion prevention device 10, the support 20 can be easily and quickly fixed to the structure S by using the fixing tool 15. In addition, according to the fixing tool 15, the support 20 can be firmly attached to the structure S, whereby sealing performance between the support 20 and the structure S can be secured to effectively prevent water leakage. It becomes possible. At the time of introduction of the water immersion prevention device 10 having such a column 20, it is necessary to make the fixture 15 attachable to the structure S, but such an operation requires a hole for inserting the column 20 in the prior art. The work load can be significantly reduced as compared with forming it.

  In one specific example of the above-described embodiment, the flange portion 22 is provided with a hole or notch 24 for receiving the fixture 15 used for attachment to the structure S. According to the support column 20, the flange portion 22 can be fixed to the structure S more easily and more quickly by using the fixing tool 15.

  In one specific example of the above-described embodiment, the support 20 further includes a rib 25 connected to the support main body 21 and the flange 22. According to the column 20, by being reinforced by the ribs 25, the rigidity of the column 20 is improved, and the relative position between the column body 21 and the flange 22 is stably maintained. Therefore, by the support | pillar 20 attached to the structure S, the water blocking sheet 30 can be stably hold | maintained in a predetermined | prescribed attitude | position, and, thereby, the planned water blocking performance can be ensured stably. In particular, according to such a rib 25, it is possible to stably maintain the relative position between the column body 21 extending along the sheet surface of the water blocking sheet 30 and the flange 22 extending along the structure S. it can. That is, the rigidity of the column 20 having the flange portion 22 firmly fixed to the structure S and the column main body portion 21 capable of stably holding the water blocking sheet 30 is not increased in weight more than necessary. It can be improved efficiently.

  In one specific example of the present embodiment described above, the flange portion 22 is a first flange portion 22A fixed to the wall portion w of the structure S, and a second flange fixed to the floor portion f of the structure S or the ground And a flange portion 22B. By fixing the first flange portion 22A and the second flange portion 22B to different parts of the structure S, the column 20 can be firmly attached to the structure S. Therefore, the water blocking sheet 30 can be stably held in a predetermined posture by the columns 20, whereby the planned water blocking performance can be stably ensured. Further, one of the first flange portion 22A and the second flange portion 22B can also function as a reinforcing member connected to both of the other of the first flange portion 22A and the second flange portion 22B and the column main body 21. . In this case, the rigidity of the columns 20 is improved, and it is also possible to improve the water blocking performance by holding the water blocking sheet 30 stably.

  In one specific example of the present embodiment described above, the flange portion 22 is located on the inner side IS of the structure S that is intended to prevent water immersion by the water blocking sheet 30 with respect to the column main body portion 21. According to this support | pillar 20, the flange part 22 comes to be located in the side water-blocked by the water shut-off sheet. Therefore, the flange portion 22 is not disposed in water such as rainwater or seawater blocked by the water blocking sheet 30. Therefore, deterioration of the flange part 22 and the fixing tool 15 resulting from immersion in water can be avoided, and the lifetime improvement of the flange part 22 and the fixing tool 15 can be achieved. Moreover, although installation of the water immersion prevention apparatus 10 will be implemented in rain in many cases, the roof IS may be installed in inner side IS of the water blocking sheet 30. FIG. Therefore, when the flange portion 22 is positioned on the inner side IS with respect to the column main body portion 21, the workability of fixing work of the flange portion 22 to the structure S is significantly improved as compared with the case where the flange portion 22 is positioned on the outer side OS. Can.

  In one specific example of the present embodiment described above, the support 20 further includes the connector 28 to which the connection member 51 connected to the water blocking sheet 30 is attached. The support 20 is connected to the water blocking sheet 30 by the connection member 51. Therefore, the water blocking sheet 30 can be stably held in a predetermined posture, and as a result, planned water blocking performance can be stably ensured. Then, since the connector 28 to which the connecting member 51 is attached is provided on the support 20, there is no need to attach the connector 28 to the structure S as a preparation for introducing the water immersion prevention device 10, In addition, the connector 28 does not remain in the structure S when the inundation prevention device 10 is not in use, thereby preventing the passage.

  In one specific example of the present embodiment described above, a notch 24 is provided which opens toward the inner side IS of the structure S which is intended to prevent water immersion by the water blocking sheet 30. According to this support column 20, the water blocked by the water blocking sheet 30 at the time of water blocking pushes the water blocking sheet 30 in the direction in which the fixing tool 15 is fitted into the notch 24. Therefore, the support 20 can be stably fixed to the structure S by the fixing tool 15 when the water immersion prevention device 10 is used.

  In the specific example of the embodiment described above, the water blocking sheet main body 31 of the water blocking sheet 30 includes the sheet-like portion 32 and a plurality of linear rib portions 33 arranged on the sheet-like portion 32. It is possible to roll it. By winding the water blocking sheet 30 in a roll, the space required for storage can be reduced. In addition, it is also possible to quickly deploy and install the water blocking sheet 30 in an emergency such as heavy rain, flood, or high tide.

  While one embodiment has been described in terms of several specific examples, these specific examples are not intended to limit the one embodiment. The embodiment described above can be implemented in various other specific examples, and various omissions, replacements, and changes can be made without departing from the scope of the invention.

  Hereinafter, an example of a modification will be described with reference to the drawings. In the following description and the drawings used in the following description, with respect to parts that can be configured in the same manner as the specific example described above, the same reference numerals as those used for the corresponding parts in the specific example described above are used Omit.

  For example, in the above-described specific example, the connection member 51 shows the example having the connection belt body 52, but is not limited to this example. For example, the connecting member 54 shown in FIGS. 9 and 10 can be used. The connecting member 54 is swingably supported by a holder 37 fixed to the water blocking sheet 30. The connection member 54 has a proximal end 54a connected to the holder 37, a distal end 54c having a receiving portion 54d capable of receiving the connector 28 provided on the first flange 22A of the support 20, and the proximal end 54a. And an intermediate portion 54b connecting the tip portion 54c. When the connection member 54 is used, the connection member 54 is locked to the connection tool 28 by swinging the connection member 54 in a state where the water blocking sheet 30 is disposed at a predetermined position with respect to the column 20. It can be fixed. In this example, the fixture 15 is configured as a bolt or pin whose head is enlarged. Moreover, the receiving part 54d is formed as a notch opened to the front side at the time of rocking | fluctuation. On the other hand, when the water immersion prevention device 10 is not in use, the water blocking sheet 30 can be wound together with the connection member 54 in a state where the connection member 54 is erected in the height direction d2 as shown in FIG.

  Further, in the specific example described above, the side edge of the water blocking sheet 30 is inserted into the groove 21 a of the column main body portion 21 so that the water blocking sheet 30 stands up and is held. Although sealing with the support 20 is ensured, the present invention is not limited to this example. For example, the column body 21 may not have the groove 21a, and the side edge of the water blocking sheet 30 may be fixed in close contact with the outer surface of the column body 21.

  Furthermore, although the example in which the notch 24 for receiving the fixing tool 15 is provided in the support column 20 is shown in the above-described specific example, the present invention is not limited to this example, a hole for receiving the fixing tool 15 is provided in the support pole 20 It is also good. Although the hole or notch 24 for receiving the fixing tool 15 is provided in the flange portion 22 of the support 20, the present invention is not limited to this example, and may be provided in the support main body 21 of the support 20.

  Furthermore, although the example in which the support 20 has the first flange portion 22A and the second flange portion 22B is shown in the above-described specific example, the present invention is not limited to this example. The post 20 may have only one of the first flange portion 22A and the second flange portion 22B, or the post 20 may not include the flange portion 22.

  Although some modifications to the above-described embodiment have been described above, it is of course possible to apply a plurality of modifications in combination as appropriate.

S Structure OP Opening f Floor w Wall 10 Water immersion prevention device 15 Fixing tool 20 Support 20A First support 20B Second support 21 Support main body 22 Flange 22A First flange 22B Second flange 24 Notch 24a 1 Notch 24b Second Notch 24c Third Notch 25 Rib 28 Connector 30 Water Sealing Sheet 51, 54 Connection Member

Claims (10)

It is a pillar attached to a structure and holding a waterproof sheet,
A column body for holding the water blocking sheet;
And a flange portion connected to the column body and removably fixed to the structure. It is a pillar attached to a structure and holding a waterproof sheet,
A post provided with holes or notches for receiving fasteners utilized for removable attachment to the structure. A column body for holding the water blocking sheet;
And a flange connected to the column body.
The support post according to claim 1 or 2, wherein a hole or a notch for receiving a fastener used for attachment to the structure is provided in the flange portion.   The support post according to claim 1, further comprising a rib connected to the support post and the flange portion.   The said flange part contains the 1st flange part fixed to the wall part of the said structure, and the 2nd flange part fixed to the floor part or the ground of the said structure. Column described.   The support according to any one of claims 1 to 5, wherein the flange portion is located on a side where the water blocking sheet is to prevent flooding with respect to the support main portion.   The support post according to any one of claims 1 to 6, further comprising a connector to which a connection member connected to the water blocking sheet is attached.   The support post according to any one of claims 2 to 7, wherein a notch opened toward the side where water blocking is to be prevented by the water blocking sheet is provided. The post according to any one of claims 1 to 8.
And a water blocking sheet held by the columns.   10. The water immersion prevention device according to claim 9, wherein the water blocking sheet has a sheet-like portion and a plurality of longitudinal rib portions arranged on the sheet-like portion and can be wound.

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