Waterproof board pressing device

Abstract

To improve waterproof performance by eliminating the shortage of a pressing force to the floor surface of a width intermediate part of a waterproof plate.SOLUTION: A waterproof plate pressing device 10 is fitted to a waterproof plate device 1. The waterproof plate device 1 comprises waterproof plates 3A, 3B, and 3C for blocking incursion of water, and at least a pair of guide rails 2L, 2R for holding both width ends of the waterproof plates 3A, 3B, and 3C. The waterproof plate pressing device 10 comprises: an erection part 11 hung to be fitted between the guide rails 2L, 2R which hold the waterproof plates 3A, 3B, and 3C; and a pressing part 12 provided in the width intermediate part of at least the erection part 11 to press the width intermediate parts of the waterproof plates 3A, 3B, and 3C.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a water blocking board pressing device that is attached to a water blocking board device. [Background technology]

[0002] A waterproof board device is known that includes a waterproof board that blocks water from entering and a column body (guide rail or center column) that holds both widthwise ends of the waterproof board. A waterproof board pressing device that is attached to the waterproof board device to improve the waterproof performance of the waterproof device is also known. For example, Patent Document 1 discloses a waterproof board adhesion device that presses a waterproof board against a floor surface or a column body. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2018-21357 A Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the waterstop sealing device of Patent Document 1, the waterproof board is pressed downward near the pillar, so with a wide waterproof board, the pressing force in the middle part in the width direction is insufficient, and there are limitations to preventing water leakage. [Means for solving the problem]

[0005] The present invention has been created in view of the above-mentioned circumstances and with the aim of solving these problems. The invention of claim 1 is a waterproof board pressing device attached to a waterproof board device, the waterproof board device comprising a waterproof board that blocks water intrusion, and at least a pair of pillars that hold both widthwise ends of the waterproof board, and the waterproof board pressing device comprises an installation section that is installed in a bridging manner between the pair of pillars that hold the waterproof board, or between a pair of side walls to which the pair of pillars are attached, and a pressing section that is provided at least in the widthwise middle part of the installation section and presses the widthwise middle part of the waterproof board downward.At the same time, mounting parts that are detachably attached to the pillar body or the side wall are provided at both ends of the bridging part in the width direction, and the mounting parts are attached to the pillar body or the side wall by elastically abutting against the pillar body or the side wall or by sandwiching the pillar body. It is characterized by: The invention of claim 2 is as follows: A waterproof board pressing device to be attached to a waterproof board device, the waterproof board device comprising a waterproof board that blocks water intrusion, and at least a pair of pillars that hold both widthwise ends of the waterproof board, the waterproof board pressing device comprising an installation section that is installed in a bridging manner between the pair of pillars that hold the waterproof board, or between a pair of side walls to which the pair of pillars are attached, and a pressing section that is provided at least in the widthwise middle section of the installation section and presses the widthwise middle section of the waterproof board downward, the pressing section comprising an abutment section that is capable of contacting an upper end of the waterproof board, The abutment portion has a U-shape that opens downward and is adapted to fit onto the upper end of the waterproof board. The invention of claim 3 is Section 2 The waterproof board pressing device according to the present invention is characterized in that the pressing portion is moreover, a bolt portion that is screwed into the installation portion so as to be movable up and down; and a rotation operation portion that is provided at an upper end of the bolt portion and that rotates the bolt portion. , and , The abutment portion is The bolt portion is provided at a lower end thereof. R It is characterized by: Effect of the Invention

[0006] According to the invention of claim 1, the widthwise middle part of the waterproof board can be pressed downward, so that the shortage of pressing force in the widthwise middle part of the waterproof board can be eliminated and the waterproof performance can be improved. Along with, The waterproof board pressing device is attached to the pillar or side wall by the mounting part elastically abutting against the pillar or side wall, or by clamping the pillar, so there is no need to provide mounting members on the pillar or side wall or to perform any mounting processing.As a result, a waterproof board pressing device can be provided that can be easily attached not only when a new waterproof board device is being installed, but also to an existing waterproof board device. According to the invention of claim 2, The abutment part of the pressing part has a U-shape that opens downward and fits onto the upper end of the waterproof board, so that not only is the waterproof board pressed downward, but also displacement of the waterproof board in the thickness direction can be suppressed. Furthermore, when attaching the waterproof board pressing device to the waterproof board device, if the abutment part of the pressing part is fitted onto the upper end of the waterproof board, not only can the waterproof board pressing device be temporarily held in place, but the waterproof board pressing device can also be positioned relative to the waterproof board, making it easier to attach the waterproof board pressing device. According to the invention of claim 3, the water blocking board is pressed downward by turning the bolt portion, so that the configuration of the pressing portion is simple and the pressing force of the water blocking board can be easily adjusted. [Brief description of the drawings]

[0007] [Figure 1] 1 is a front view of a water blocking board device to which a water blocking board pressing device according to a first embodiment of the present invention is attached. [Diagram 2] 1 is a plan view of a water blocking board device to which a water blocking board pressing device according to a first embodiment of the present invention is attached. [Diagram 3] 2 is a cross-sectional view taken along line AA in FIG. 1. [Figure 4] 1 is a front view of a water blocking board pressing device according to a first embodiment of the present invention. [Diagram 5] 1 is a plan view of a water blocking board pressing device according to a first embodiment of the present invention. [Figure 6] 1 is a side view of a water blocking board pressing device according to a first embodiment of the present invention. [Figure 7] 4 is a front view of a water blocking board device showing a second installation example of the water blocking board pressing device according to the first embodiment of the present invention. FIG. [Figure 8] 11 is a front view of a water blocking board device showing a third installation example of the water blocking board pressing device according to the first embodiment of the present invention. FIG. [Figure 9] 6 is a front view of a water blocking board device to which a water blocking board pressing device according to a second embodiment of the present invention is attached. FIG. [Figure 10] FIG. 10 is an enlarged front view of a main part of FIG. [Figure 11] 1(a) is a front view showing both ends (mounting portions) of a water blocking board pressing device according to a second embodiment of the present invention, and FIG. 1(b) is a front view showing both ends (mounting portions) of a water blocking board pressing device according to a third embodiment. [Figure 12] 13 is a front view of a water blocking board device showing an example of installation of a water blocking board pressing device according to a third embodiment of the present invention. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0008] [Waterproof board device] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. First, a waterproof board device 1 to which a waterproof board pressing device 10 according to an embodiment of the present invention is attached will be described. In Fig. 1 and Fig. 2, 1 is a waterproof board device, and the waterproof board device 1 includes guide rails 2L, 2R (an example of a pillar body) and waterproof boards 3A, 3B, 3C.

[0009] In the following description, the width direction (longitudinal direction) of the waterproof boards 3A, 3B, 3C may be referred to as the left-right direction, the thickness direction of the waterproof boards 3A, 3B, 3C may be referred to as the front-rear direction, and the height direction of the waterproof boards 3A, 3B, 3C may be referred to as the up-down direction. In the front-rear direction, the side of the waterproof boards 3A, 3B, 3C that receives water pressure may be referred to as the outdoor side (front side), and the side that prevents water from entering may be referred to as the indoor side (rear side).

[0010] The guide rails 2L, 2R are extruded members made of metal such as aluminum, and are erected on both the left and right sides of the entrance 4. For example, the guide rails 2L, 2R in this embodiment are attached to the front faces of the side walls 5L, 5R arranged on both the left and right sides of the entrance 4, as shown in Figures 1 and 2, but they may also be attached to the inner faces of the side walls 5L, 5R (see Figure 7) or embedded in the side walls 5L, 5R.

[0011] After construction, the guide rails 2L, 2R are left integrated with the side walls 5L, 5R. The guide rails 2L, 2R may be made detachable from the side walls 5L, 5R, and may be stored in a warehouse or the like when removed, and installed along the side walls 5L, 5R only when in use.

[0012] The waterproof boards 3A, 3B, and 3C of this embodiment are made of metal panel material having a certain rigidity, and are composed of three sheets that can be stacked vertically in series and can be fitted together or separated from each other. Such split waterproof boards 3A, 3B, and 3C can be stored compactly in a warehouse when removed, and can be easily transported when used and removed.

[0013] Both widthwise ends of the waterproof boards 3A, 3B, 3C are inserted into the insertion grooves 2a formed in the guide rails 2L, 2R, and are thereby held upright so as to block the entrance 4. Specifically, when both widthwise ends of the waterproof boards 3A, 3B, 3C are inserted from above into the insertion grooves 2a of the guide rails 2L, 2R, starting from the lower waterproof boards 3A, 3B, 3C, the waterproof boards 3A, 3B, 3C are guided by the guide rails 2L, 2R to move downward, and are stacked in order to form a waterproof wall W at the entrance 4.

[0014] At least the lower end surface of the waterproof board 3A located at the lowest stage is provided with a waterproof material 3a that abuts against the floor surface 4a of the entrance / exit 4. The waterproof material 3a is made of a rubber elastic material, and elastically abuts against the floor surface 4a of the entrance / exit 4 to suppress water leakage between the lower end surface of the waterproof board 3A and the floor surface 4a. However, when the waterproof boards 3A, 3B, and 3C are subjected to water pressure, the waterproof board 3A at the lowest stage may rise from the floor surface 4a, or gaps may occur between the waterproof boards 3A, 3B, and 3C, increasing the amount of water leakage. The waterproof board pressing device 10 according to the embodiment of the present invention is attached to a new or existing waterproof board device 1 to suppress the above-mentioned water leakage.

[0015] The waterproof board pressing device 10 according to the embodiment of the present invention can also be attached to a waterproof board device 1B of a double-mounted type as shown in Fig. 8. The waterproof board device 1B of the double-mounted type is applied to an entrance 4B with a wide opening width, and includes a pair of left and right guide rails 2L, 2R, a center post 6 (another example of a pillar body) having insertion grooves on both the left and right sides and removably installed between the left and right guide rails 2L, 2R, a first set of waterproof boards 3A, 3B, 3C that are held upright between the left guide rail 2L and the center post 6, and a second set of waterproof boards 3A, 3B, 3C that are held upright between the right guide rail 2R and the center post 6. The waterproof board pressing device 10 according to the embodiment of the present invention will be described below.

[0016] [Waterproof board pressing device] As shown in Figures 1 to 8, the waterproof board pressing device 10 comprises an installation section 11 that is mounted in a bridging manner between a pair of guide rails 2L, 2R (see Figures 1 and 2) that hold waterproof boards 3A, 3B, 3C, and a pressing section 12 that is provided at least in the widthwise middle section of the installation section 11 and presses the widthwise middle sections of the waterproof boards 3A, 3B, 3C downward.

[0017] The installation portion 11 may be mounted in a bridging manner between a pair of side walls 5L, 5R to which the guide rails 2L, 2R are attached as shown in Fig. 7, or may be mounted in a bridging manner between the guide rails 2L, 2R and the center column 6 as shown in Fig. 8. The waterproof board pressing device 10 shown in Figs. 1 to 8 includes three pressing portions 12 that press downward the widthwise middle portion and both widthwise end portions of the waterproof boards 3A, 3B, 3C, but the number and positions of the pressing portions 12 can be changed as appropriate.

[0018] Such a waterproof board pressing device 10 can press the widthwise middle portions of the waterproof boards 3A, 3B, 3C downward, thereby eliminating the insufficient pressing force at the widthwise middle portions of the waterproof boards 3A, 3B, 3C and improving the waterproof performance.

[0019] Specifically, the installation portion 11 is a metal extrusion material such as aluminum having a rectangular cylindrical shape, and at both left and right ends thereof are provided mounting portions 13A, 13B which are removably attached to the guide rails 2L, 2R, the center column 6, or the side walls 5L, 5R.

[0020] In this embodiment, the mounting portions 13A, 13B elastically abut against the guide rails 2L, 2R, the center post 6, or the side walls 5L, 5R from the inside, and are thereby mounted in a tensioned state between a pair of guide rails 2L, 2R, between the guide rails 2L, 2R and the center post 6, or between a pair of side walls 5L, 5R.

[0021] One of the mounting parts 13A is provided with a fixed pressing rod 15 that protrudes outward from one left-right end of the bridge part 11, and a rubber elastic member 15a is provided at the tip of the rod.

[0022] The other mounting part 13B is provided with a movable pressing rod 16 that protrudes outward from the other left-right end of the installation part 11, and a rubber elastic member 16a is provided at the tip of the movable pressing rod 16. The movable pressing rod 16 is screwed to the other left-right end of the installation part 11 so as to be movable back and forth in the left-right direction, and the amount of protrusion from the installation part 11 can be adjusted based on the turning operation of a lever handle 16b provided in the middle part.

[0023] With such mounting parts 13A, 13B, after disposing the waterproof board pressing device 10 between the pair of guide rails 2L, 2R, between the guide rails 2L, 2R and the center post 6, or between the pair of side walls 5L, 5R, by turning the lever handle 16b to change the position of the movable pressing rod 16 in the protruding direction, the rubber elastic members 15a, 15b of both mounting parts 13A, 13B elastically abut against the guide rails 2L, 2R, the center post 6, or the side walls 5L, 5R from the inside. This makes it possible to mount the waterproof board pressing device 10 in a tensioned state between the pair of guide rails 2L, 2R, between the guide rails 2L, 2R and the center post 6, or between the pair of side walls 5L, 5R.

[0024] According to this mounting structure of the waterproof board pressing device 10, there is no need to provide mounting components or perform mounting processing on the guide rails 2L, 2R, the center column 6, or the side walls 5L, 5R, so a waterproof board pressing device 10 can be provided that can be easily mounted not only when a new waterproof board device 1 is installed, but also on an existing waterproof board device 1.

[0025] The pressing portion 12 includes a bolt portion 17 that is screwed into the erection portion 11 so as to be movable up and down, a rotating handle 18 (rotating operation portion) that is provided at the upper end of the bolt portion 17 and rotates and operates the bolt portion 17, and an abutting portion 19 that is provided at the lower end of the bolt portion 17 and can abut against the upper end of the waterproof board 3C. The abutting portion 19 has a U-shape that opens downward, and fits into the upper end of the waterproof board 3C. In other words, the abutting portion 19 includes a first surface portion 19a that is connected to the lower end of the bolt portion 17 and that runs along the upper end surface of the waterproof board 3C, and a second surface portion 19b and a third surface portion 19c that extend downward from both front and rear ends of the first surface portion 19a and run along the front and rear surfaces of the waterproof board 3C. 6, the lower end of bolt portion 17 penetrates first surface portion 19a of contact portion 19 and supports contact portion 19 in a manner that prevents it from coming loose via a pair of retaining members 17a, 17b. As a result, contact portion 19 is connected to the lower end of bolt portion 17 so as to be relatively rotatable, and therefore will not rotate together with bolt portion 17 when rotating handle 18. A rubber-based elastic member such as a rubber sheet is attached to the inner surface of contact portion 19 (the surface that contacts waterproof board 3C).

[0026] According to the pressing part 12, the waterproof boards 3A, 3B, and 3C are pressed downward by turning the bolt part 17, so that the configuration of the pressing part 12 is simple and the pressing force of the waterproof boards 3A, 3B, and 3C can be easily adjusted. In addition, the abutment part 19 of the pressing part 12 has a U-shape that opens downward and fits into the upper end of the waterproof board 3C, so that not only can the waterproof boards 3A, 3B, and 3C be pressed downward, but also the displacement of the waterproof boards 3A, 3B, and 3C in the thickness direction can be suppressed. In addition, when the waterproof board pressing device 10 is attached to the waterproof board device 1, if the abutment part 19 of the pressing part 12 is fitted into the upper end of the waterproof board 3C, not only can the waterproof board pressing device 10 be temporarily held, but the waterproof board pressing device 10 can be positioned relative to the waterproof boards 3A, 3B, and 3C, so that the installation work of the waterproof board pressing device 10 is facilitated.

[0027] According to this embodiment configured as described above, there is provided a waterproof board pressing device 10 attached to a waterproof board device 1, the waterproof board device 1 comprising waterproof boards 3A, 3B, 3C that block water intrusion, and at least a pair of guide rails 2L, 2R that hold both widthwise ends of the waterproof boards 3A, 3B, 3C, and the waterproof board pressing device 10 comprises an erection section 11 that is attached in a bridging manner between the pair of guide rails 2L, 2R that hold the waterproof boards 3A, 3B, 3C, between the guide rails 2L, 2R and the center column 6, or between a pair of side walls 5L, 5R to which the pair of guide rails 2L, 2R are attached, and a pressing section 12 that is provided at least in the widthwise middle portion of the erection section 11 and presses the widthwise middle portion of the waterproof boards 3A, 3B, 3C downward, thereby eliminating the lack of pressing force in the widthwise middle portion of the waterproof boards 3A, 3B, 3C and improving waterproof performance.

[0028] In addition, mounting portions 13A, 13B are provided at both widthwise ends of the installation section 11, which are removably attached to the guide rails 2L, 2R, the center column 6 or the side walls 5L, 5R.The mounting portions 13A, 13B are attached to the guide rails 2L, 2R, the center column 6 or the side walls 5L, 5R by elastic abutment against the guide rails 2L, 2R, the center column 6 or the side walls 5L, 5R, so there is no need to provide mounting members on the guide rails 2L, 2R, the center column 6 or the side walls 5L, 5R or to perform mounting processing.As a result, a waterproof board pressing device 10 can be provided that can be easily attached not only when a new waterproof board device 1 is installed, but also to an existing waterproof board device 1.

[0029] In addition, the pressing portion 12 is equipped with a bolt portion 17 that is screwed into the installation portion 11 so that it can be moved back and forth in the vertical direction, a rotating handle 18 that is provided at the upper end of the bolt portion 17 and used to turn and operate the bolt portion 17, and an abutment portion 19 that is provided at the lower end of the bolt portion 17 and can abut against the upper end of the waterproof board 3C.This not only simplifies the configuration of the pressing portion 12, but also makes it easy to adjust the pressing force of the waterproof boards 3A, 3B, and 3C.

[0030] In addition, the abutment portion 19 has a U-shape that opens downward and fits onto the upper end of the waterproof board 3C, so that not only can the waterproof boards 3A, 3B, 3C be pressed downward, but also the displacement of the waterproof boards 3A, 3B, 3C in the thickness direction can be suppressed. Furthermore, when attaching the waterproof board pressing device 10 to the waterproof board apparatus 1, if the abutment portion 19 is attached to the upper end of the waterproof board 3C, not only can the waterproof board pressing device 10 be temporarily held, but the waterproof board pressing device 10 can also be positioned relative to the waterproof boards 3A, 3B, 3C, making the installation work of the waterproof board pressing device 10 easier.

[0031] [Other embodiments] Next, a second and third embodiment of the present invention will be described with reference to Fig. 9 to Fig. 12. However, configurations common to the first embodiment are designated by the same reference numerals as in the first embodiment, and the description of the first embodiment may be cited.

[0032] 9, 10 and 11(a), the waterproof board pressing device 10B of the second embodiment differs from the first embodiment in the structure of the mounting parts 13C provided at both left and right ends of the installation part 11, and the mounting parts 13C of the second embodiment are mounted to the guide rails 2L, 2R by being sandwiched between the guide rails 2L, 2R. Specifically, the mounting part 13C of the second embodiment includes a first movable pressing rod 20 that is screwed to both left and right ends of the installation part 11 so as to be movable forward and backward in the left and right directions and that protrudes outward from both left and right ends of the installation part 11, and a second movable pressing rod 22 that is arranged coaxially with the first movable pressing rod 20 and connected via a connecting member 21.

[0033] The connecting member 21 is a member having a U-shape when viewed from the front, which opens downward, and the width of the opening is larger than the thickness of the upper edge portion 2b (e.g., the upper edge portion of the outer end wall) of the guide rails 2L, 2R. In other words, the connecting member 21 is configured to be able to be loosely fitted into the upper edge portion 2b of the guide rails 2L, 2R from above.

[0034] Of the opposing surface portions 21a, 21b of the connecting member 21, the outer end portion of the first movable pressing bar 20 is connected in a penetrating state to one opposing surface portion 21a, and the inner end portion of the second movable pressing bar 22 is screwed into the other opposing surface portion 21b so as to be movable back and forth in the left and right direction. Rubber elastic members 20a, 22a are provided on the outer end surface of the first movable pressing bar 20 and the inner end surface of the second movable pressing bar 22, respectively. A lever handle 22b is provided at the middle portion of the second movable pressing bar 22 in the left and right direction, and the second movable pressing bar 22 can be moved back and forth in the left and right direction by turning the lever handle 22b.

[0035] When mounting the waterproof board pressing device 10B of the second embodiment to the waterproof board device 1, the protruding position of the first movable pressing rod 20 of the left and right mounting parts 13C is adjusted so that the rubber elastic member 20a provided on the first movable pressing rod 20 abuts or is close to the inner surface of the upper edge portion 2b of the guide rails 2L, 2R in the mounted state. This adjustment is desirably performed in advance.

[0036] Next, the connecting members 21 of the left and right mounting portions 13C are loosely fitted from above into the upper edge portions 2b of the guide rails 2L, 2R, and then the second movable pressure bar 22 is moved in a direction approaching the first pressure bar 20 by turning the lever handle 22b, and the upper edge portions 2b of the guide rails 2L, 2R are clamped between both movable pressure bars 20, 22 via the rubber elastic members 20a, 22a.

[0037] With this type of mounting portion 13C, it is possible to firmly mount the water blocking board pressing device 10B to the left and right guide rails 2L, 2R. However, there is a risk that a clamping type mounting portion 13C cannot be mounted to the center post 6.

[0038] As shown in (b) of Figure 11, the waterproof board pressing device 10C of the third embodiment differs from the previous embodiments in that it has an attachment portion 13B of the first embodiment at one left-right end of the installation portion 11, and an attachment portion 13C of the second embodiment at the other left-right end of the installation portion 11.

[0039] According to this third embodiment of the waterproof board pressing device 10C, by attaching one mounting part 13B to the center column 6 and the other mounting part 13C to the guide rails 2L, 2R, as shown in Figure 12, it is possible to apply the clamping type mounting part 13C even to a waterproof board device 1B with a linked specification.

[0040] Of course, the present invention is not limited to the above-described embodiment. For example, in the above-described embodiment, the waterproof wall W is composed of three laminated waterproof boards 3A, 3B, and 3C, but the waterproof wall W may be composed of one or two waterproof boards, or may be composed of four or more waterproof boards. Also, the guide rails 2L and 2R in the above-described embodiment are extruded shapes, but guide rails composed of bent sheet metal can also be used without any problems. [Explanation of symbols]

[0041] 1,1B Waterproof board device 2L, 2R guide rail 2a Insertion groove 2b Upper edge 3A~3C prevention plate 3a Water stop material 4,4B entrance / exit 4a Floor surface 5L,5R side wall 6 Middle pillar 10,10B,10C Waterproof plate pressing device 11 Erection section 12 Pressing section 13A~13C Mounting part 15 Fixed pressure rod 15a Rubber elastic member 16 Movable pressing rod 16a Rubber elastic member 16b Lever handle 17 Bolt section 17a, 17b Retaining members 18 Rotating Handle 19 Contact part 19a First side 19b Second side part 19c Third side 20 First movable pressing rod 20a Rubber elastic member 21 Connecting members 21a, 21b Opposing surface part 22 Second movable pressing rod 22a Rubber elastic member 22b Lever handle

Claims

1. A waterproof board pressing device attached to a waterproof board device, The water blocking board device is A waterproof board to stop water from entering, At least a pair of columns for holding both ends of the water blocking board in the width direction; The water blocking board pressing device is A bridge section is attached between the pair of pillars holding the waterproof board or between a pair of side walls to which the pair of pillars are attached; A pressing portion is provided at least in the middle of the width direction of the installation portion and presses the middle of the width direction of the waterproof board downward, The bridging portion is provided at both ends in the width direction with a mounting portion that is detachably mounted to the column or the side wall, A waterproof board pressing device, characterized in that the mounting portion is attached to the pillar or the side wall by elastically abutting against the pillar or the side wall, or by clamping the pillar.

2. A waterproof board pressing device to be attached to a waterproof board device, The water blocking board device is A waterproof board to stop water from entering, At least a pair of columns for holding both ends of the water blocking board in the width direction; The water blocking board pressing device is A bridge section is attached between the pair of pillars holding the waterproof board or between a pair of side walls to which the pair of pillars are attached; A pressing portion is provided at least in the middle of the width direction of the installation portion and presses the middle of the width direction of the waterproof board downward, The pressing portion is A contact portion is provided that can contact the upper end of the waterproof board, The waterproof board pressing device is characterized in that the abutment portion has a U-shape that opens downward and fits onto the upper end of the waterproof board.

3. The pressing portion further includes: A bolt portion that is screwed into the installation portion so as to be movable in the vertical direction; A rotation operation portion provided at an upper end of the bolt portion and configured to rotate the bolt portion, 3. The water blocking board pressing device according to claim 2, wherein the abutment portion is provided at a lower end of the bolt portion.

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