JP2007291616A - Waterproofing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a safe waterproofing device capable of eliminating the need of the labor and time for securing a waterproof plate storage place and transporting a waterproof plate and preventing a step into which a person falls or by which the foot of a person is caught in use from occurring. <P>SOLUTION: The waterproof plate 6 is liftably disposed in a storage groove 5 formed in the floor surface 7 of a building. The position of the waterproof plate 6 is changeable between an extended position at which the entrance 2 of the building is closed by pulling up the waterproof plate 2 and a storage position at which the waterproof plate is stored in the storage groove 5. The waterproofing device comprises a pivotally supporting means for pivotally supporting the waterproof plate 6 at the extended position and a holding means for holding it at the extended position unmovably in the longitudinal direction. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a waterproof device that is installed at an entrance of a building such as a building, a subway, or an underground shopping area to prevent water from entering the building during a flood.

As a waterproof device that prevents inundation from the entrance of a building in the event of a flood due to torrential rain or storm surge, concave and convex grooves are provided on the left and right side walls of the entrance and exit of the building. A waterproof board is disposed in a storage groove formed on the floor surface of the entrance / exit of a building that is configured to shield the entrance / exit with a fitted waterproof board (for example, see Patent Document 1). The waterproof plate is raised during use to shield the doorway, while the waterproof plate is laid down when not in use so that the upper surface can be stored in the storage groove with the same level as the floor surface. (See, for example, Patent Document 2).
Japanese Patent Laying-Open No. 2003-278458 (FIG. 13) JP 2003-129893 A

  By the way, in the above-described conventional configuration, in the configuration in which both ends of the waterproof plate are fitted to the concave grooves provided on the left and right side walls of the entrance and exit of the building to shield the entrance and exit, the waterproof plate is flooded. Since it is used only in emergency situations where there is a risk, it is necessary to secure a separate storage location for the waterproof sheet in normal times. In addition, transport it from the storage location in an emergency, and transport it again to the storage location after use. Therefore, it takes time and labor for transportation, and there is a problem that handling is poor.

  On the other hand, in the structure in which the waterproof plate is disposed in the storage groove formed on the floor of the entrance of the building so that it can be tilted, the labor and time for securing and transporting the waterproof plate as described above are required. While the problem of hanging does not occur, when the waterproof plate is raised during use, the relatively wide storage groove formed on the floor surface remains open, so the surrounding floor surface and the inner bottom surface of the storage groove If the surrounding floor and the storage groove are submerged, the storage groove becomes invisible due to turbid water during a flood, and people fall into the storage groove or There was a problem that there was a risk of falling.

  The present invention has been made to solve such conventional problems, and it can eliminate the labor and time required for securing and transporting the storage area of the waterproof plate, and in the case of using a conventional person during use. It is an object of the present invention to provide a safe waterproofing device that does not cause a step that is depressed or that a foot is taken.

  The present invention provides a waterproof device which is installed between the left and right side walls of a building entrance and prevents water from entering the building from the entrance during a flood, and has an opening at the upper end, and the opening is a floor of the entrance. A substantially rectangular storage groove formed in the ground of the doorway so as to be substantially flush with the surface, a mounting plate portion extending in the vertical direction, and inward from the front and rear end edges of the mounting plate portion A pair of left and right guide members each having a mounting edge fixed to the left and right side walls of the entrance / exit at positions above the left and right side portions of the storage groove; And a retracted position in which the upper side is pulled out from the opening by an upward pulling operation to shield the entrance, and the storage is moved down from the expanded position and stored in the storage groove. A waterproof plate that can be converted into a position, and disposed on the top of the waterproof plate A supporting means comprising: a suspension portion; a suspension portion provided on the left and right side walls of the entrance and exit, supporting the suspension portion at the unfolded position and supporting the waterproof plate so as not to move down; and the waterproof plate. A waterproof device comprising: holding means that holds the unmovable front and rear at the unfolded position.

  Here, the storage groove may be formed by placing concrete in a formwork assembled in a predetermined shape, or may be formed by embedding a metal housing having a predetermined shape in the ground.

  In the waterproof device, as a means for supporting the waterproof plate, the suspended portion provided on the upper portion of the waterproof plate is constituted by a handle rod provided on the right and left ends of the upper surface of the waterproof plate so as to be raised and lowered. The suspension portions provided on the left and right side walls of the doorway are configured by engaging members that are movably disposed on the left and right side walls, and engage with the handle rod in the standing state at the advanced position from below. A configuration is proposed.

  Further, as the waterproof plate holding means, an engaged piece disposed on the inner wall surface of the support edge located on the rear side of the guide member, a gripping portion at one end, and an engaging portion at the other end A pivot lever that is pivotally supported by the waterproof plate and pivots substantially parallel to the waterproof plate, and a pivot lever that is pivotable to a close position where the engagement portion is in close contact with the engaged piece portion; Further, any one of the engaged piece portion and the engaging portion of the rotating lever is provided with a guide inclined surface that guides the engaging portion to the close position as the rotating lever rotates. A configuration is proposed.

  Furthermore, a configuration is proposed in which a main water blocking packing is provided on the front surface of the waterproof plate so as to close a gap generated between the front surface of the waterproof plate drawn out to the drawing position and the front wall surface of the storage groove.

  Further, a gap formed between the front surfaces of the left and right ends of the waterproof plate converted into the unfolded position and the inner wall surface of the support edge portion positioned on the front side of the guide member is closed on the front surfaces of the left and right ends of the waterproof plate. A configuration in which the side water stop packing is disposed is proposed.

  Moreover, the structure by which the storage groove | channel is formed of the side peripheral wall of the storage housing | casing which accommodates a waterproof board so that raising / lowering is possible is proposed.

  In addition, a configuration is proposed in which a cover plate that closes the opening of the storage groove substantially flush with the floor surface at the storage position of the waterproof plate is disposed at the upper end of the waterproof plate.

  As described above, the present invention comprises an opening at the upper end, and a substantially rectangular storage groove formed in the ground of the doorway so that the opening is substantially flush with the floor surface of the doorway. A mounting plate portion extending in the vertical direction; and a support edge portion projecting inward from the front and rear end edges of the mounting plate portion with a predetermined width; A pair of left and right guide members each having a mounting plate portion fixed to each of the left and right side walls of the left and right sides, and the upper and lower guides are arranged in the housing groove so that the upper and lower sides can be pulled out by the upward pulling operation. A waterproof plate that can be converted into a deployed position that is shielded from the deployed position and stored in the storage groove by being moved down from the deployed position, and a suspended portion that is disposed above the waterproof plate, Provided on the left and right side walls of the doorway, supporting the suspended part at the deployed position and moving the waterproof plate downward Since the waterproof device is provided with a supporting means comprising a suspension portion that supports the performance plate and a holding means for holding the waterproof plate so as not to move back and forth at the unfolded position, the waterproof plate is drawn upward from the storage groove. In the unfolded position, it is supported so that it cannot be moved down through the support means, and the holding means is held so that it cannot move back and forth, so that the waterproof door shields the entrance of the building, and the interior of the building during a flood Inundation of water can be prevented. On the other hand, in order to return the waterproof plate to the storage position from this state, the waterproof plate is moved down by its own weight and stored in the storage groove by releasing the support by the holding means and the support by the support means. Will return. Since the waterproof plate is liftable as described above, it is not necessary to separately secure a storage place for the waterproof plate when not in use, and the labor and time required for transporting the waterproof plate can be eliminated. In addition, the opening provided at the upper end of the storage groove is located directly under the waterproof board in a state where the waterproof board is drawn upward, and can be an opening having a narrow width enough to raise and lower the waterproof board. There is no step where a person falls into the storage groove and a step is taken as in the conventional case. Thereby, high safety can be obtained.

  Here, the supporting means of the waterproof plate comprises a suspended portion disposed at the upper part of the waterproof plate, with handle rods disposed so as to be undulated at the left and right ends of the upper surface of the waterproof plate, The suspension part provided on the left and right side walls is arranged to be able to advance and retreat on the left and right side walls, and is constituted by an engaging member that engages with the handle rod in the standing state at the advanced position from below. After gripping the handle erected from the lying state and pulling the waterproof plate in the storage position upward, the engaging members in the retracted position are advanced from the left and right side walls of the entrance and exited to the handle erected in the downward direction. By engaging with each other, the right and left ends of the waterproof board are supported at the upper part by the engaging member, and the waterproof board can be supported in the unfolded position in the unfolded position. Further, by slightly lifting the waterproof plate in the unfolded position upward, and retracting the engagement member in this state to disengage the handle rod, the waterproof plate is moved down by its own weight and returned to the storage position. Thereby, a waterproof board can be easily changed into a deployment position and a storage position.

  The waterproof plate holding means includes an engaged piece disposed on the inner wall surface of the support edge located on the rear side of the guide member, a gripping portion at one end, and an engaging portion at the other end. A pivot lever that is pivotally supported by the waterproof plate and pivots substantially parallel to the waterproof plate, the engaging portion being pivotable to a close position in close contact with the engaged piece portion; In either of the engaged piece portion and the engaging portion of the rotating lever, a guide inclined surface that guides the engaging portion to the close position as the rotating lever rotates is provided. When the engaging portion that rotates in accordance with the rotation operation of the rotating lever comes into close contact with the engaged piece portion by the guide of the guide inclined surface, the waterproof plate is pressed forward as a reaction, and the storage groove and It is press-contacted with the opposing surface of a guide member. Thereby, a waterproof board can be easily hold | maintained at the deployment position so that a back-and-forth movement is impossible.

  Furthermore, if the main waterproofing packing that closes the gap formed between the front surface of the waterproof plate converted to the unfolded position and the front wall surface of the storage groove is disposed on the front surface of the waterproof plate, it is waterproof. It is possible to prevent water from entering from a gap formed between the front surface of the plate and the front wall surface of the storage groove.

  In addition, a gap formed between the front surfaces of the left and right ends of the waterproof board converted to the deployed position and the inner wall surface of the support edge located on the front side of the guide member is formed on the front surfaces of both ends of the waterproof board. In the configuration in which the side water-stopping packing to be closed is disposed, the gap formed between the front surfaces of the left and right ends of the waterproof plate and the inner wall surface of the support edge located on the front side of the guide member. Infiltration of water can be prevented.

  In addition, in the configuration in which the storage groove is formed by the side peripheral wall of the storage casing that stores the waterproof plate so that it can be moved up and down, a required product is assembled in advance in the storage casing to obtain a complete product. In addition, it is possible to easily form the storage groove by embedding the storage housing in the floor of the entrance / exit of the building, so that the waterproof device can be easily constructed.

  In addition, in the configuration in which a lid plate is provided at the upper end of the waterproof plate so as to close the opening of the storage groove substantially flush with the floor surface at the storage position of the waterproof plate, the waterproof plate is in the storage position. In the converted state, the opening of the storage groove can be closed substantially flush with the floor surface by the cover plate, thereby preventing the opening of the storage groove from obstructing traffic.

Below, one Example of the waterproofing device concerning this invention is described based on FIGS.
As shown in FIGS. 1 and 2, the waterproof device 1 is installed at an entrance 2 facing the outside of a building, and is embedded in the ground between the left and right side walls 3, 3 constituting the entrance 2. A substantially rectangular storage groove 5 having a narrow-width opening 4 (see FIG. 7) along the direction orthogonal to the left and right side walls 3 and 3 is formed at the upper end. A waterproof plate 6 to be described later is disposed so as to be movable up and down. Here, on the floor surface 7 between the left and right side walls 3, 3, as shown in FIG. 3, a metal storage housing 8 having a relatively narrow opening 4 at the upper end is provided in the opening. 4 is embedded in the vertical direction so as to be substantially flush with the floor surface 7. In this embodiment, the storage groove 5 is formed by the side peripheral wall 9 of the storage housing 8.

  As shown in FIGS. 1 and 3, the side peripheral wall 9 of the storage housing 8 is composed of left and right side walls 10a and 10a and front and rear side walls 10b and 10c. The bottom of the side peripheral wall 9 is shielded by the bottom wall 10d. Has been. Further, the upper end portions of the front and rear side walls 10b and 10c are receiving edge portions 11 and 11 that are slightly expanded in the front and rear direction via stepped portions, and a lid plate 15 described later is supported by the receiving edge portions 11 and 11. To get. Further, as shown in FIG. 4, the left and right side portions 8 ′ and 8 ′ of the storage housing 8 are formed in a wide width shape that slightly expands in the front-rear direction so as to coincide with the cross-sectional shape of the guide members 12 and 12 described later. The inside of the guide members 12 and 12 has the same cross-sectional shape and is provided continuously in the vertical direction.

  Above the left and right side portions of the storage groove 5, a pair of left and right guide members 12, 12 are disposed. Each of the guide members 12 and 12 includes a mounting plate portion 13 extending in the vertical direction, and support edge portions 14a and 14b protruding inward from the front and rear end edges of the mounting plate portion 13 with a predetermined width. As shown in FIG. 1 and the like, the respective mounting plate portions 13 and 13 are fixed to the wall surfaces of the left and right side walls 3 and 3 of the entrance / exit 2 so as to face each other at positions above the left and right side portions of the storage groove 5 In the state, it is erected along the wall surfaces of the left and right side walls 3 and 3.

  The waterproof plate 6 is made of a horizontally-long rectangular metal plate, and the vertical width and the horizontal width thereof are formed so as to substantially match the height dimension and the horizontal width inside the storage casing 8, respectively. It is stored so that it can be raised and lowered. The waterproof plate 6 is unfolded from the opening 4 through the guiding action of the guide members 12 and 12 by the upward pulling operation to shield the doorway 2 (see FIGS. 2 and 7). ) And a storage position (see FIGS. 1 and 3) that moves downward from the deployed position by its own weight and is stored in the storage groove 5. As shown in FIG. 3, a metal lid plate 15 that can be fitted into the opening 4 is disposed at the upper end of the waterproof plate 6. 15 is provided so as to close the opening 4 so as to be substantially flush with the surrounding floor surface 7 while being supported by the receiving edges 11, 11 of the storage housing 8. This prevents the opening 4 of the storage groove 5 from obstructing traffic when the waterproof plate 6 is stored.

  At both left and right ends of the lid plate 15, substantially U-shaped handle rods 16, 16 are disposed so as to be able to undulate, and the handle rods 16, 16 constitute a suspended portion of the waterproof plate 6. . As shown in FIG. 7 and the like, the handle rods 16 and 16 are pivotally supported by support shafts 17 and 17 that are horizontally mounted on the lower portion of the cover plate 15 so that the waterproof plate 6 can be accommodated. In the state, as shown in FIG. 3, it can be stored in the lower part of the cover plate 15 by being tilted, while it can be gripped when it stands up from this lying down state, and the grips 16 and 16 are gripped and stored. The waterproof plate 6 in the position can be pulled out upward. Further, on the left and right side walls 3 and 3 of the entrance 2, flat rectangular block-like engaging members 19 and 19 whose leading ends protrude and retract from insertion holes 18 and 18 formed in the guide members 12 and 12 can advance and retreat. The suspension member is configured to support the waterproof plate 6 so that the waterproof plate 6 cannot be moved downward by the engaging members 19. Here, the suspension part composed of the engaging members 19, 19 that can be advanced and retracted is disposed at a height position corresponding to the upper part of the waterproof plate 6 that has been converted to the deployed position. The handle rods 16 and 16 are provided so as to be engaged from below. And it is provided in the suspended part which consists of the handle rods 16 and 16 arrange | positioned in the upper part of this waterproof board 6, and the right-and-left both side walls 3 and 3 of the entrance / exit 2, and is suspended in the deployment position of the waterproof board 6 The support means of the waterproof board 6 is comprised by the suspension part which consists of the engaging members 19 and 19 which support a part.

  Further, the inner wall surfaces of the support edge portions 14b and 14b located on the rear side of the support edge portions 14a and 14b of the guide members 12 and 12 are engaged with a substantially block-like engagement at a position near the lower end thereof. A pair of left and right pieces 20, 20 are arranged, and on the front side surface of the engaged pieces 20, 20, there are guide inclined surfaces 21, 21 inclined from the lower rear toward the upper front and the guide inclined Vertical contact surfaces 22 and 22 (see FIG. 3) that are continuous with the surfaces 21 and 21 are formed, respectively. On the other hand, on the rear side surface of the waterproof plate 6, as shown in FIG. 7, the waterproof plate 6 is supported by the support means in the deployed position at a position corresponding to the engaged pieces 20, 20. Rotating levers 23 and 23 are provided, respectively. As shown in FIG. 6, each of the rotating levers 23, 23 has a grip portion 24 at one end and an engagement portion 25 at the other end, and protrudes from a base 26 fixed to the waterproof plate 6. The support shaft 27 is rotatably supported by the support shaft 27 and is provided so as to rotate substantially parallel to the waterproof plate 6 by a rotation operation of gripping the grip portion 24. When the engaging portion 25 reaches a close position where the engaging portion 25 is in close contact with the close contact surface 22 of the engaged piece portion 20 through the guide action of the guide inclined surface 21 by the rotation, the waterproof plate 6 is pressed forward. Thus, the waterproof groove 6 can be brought into pressure contact with the housing groove 5 and the opposing surfaces of the guide members 12, 12, and the waterproof plate 6 is deployed by the engaged piece portions 20, 20 and the rotating levers 23, 23. The holding means for holding the front and rear incapable of moving forward and backward is configured.

As shown in FIG. 5 and the like, a rising edge 28 is formed on the front side of the lower end portion of the waterproof plate 6 by folding the lower end portion into a U-shaped cross section. The main water-stop packing 29 is disposed over the width portion excluding the left and right ends. The main water-stop packing 29 is provided at a position corresponding to the upper portion of the front side wall 10b of the housing 8 as shown in FIG. 7 in a state where the waterproof plate 6 is supported at the deployed position via the support means. When the waterproof plate 6 is pressed forward by the holding means, as shown in FIG. 8, the main water-stop packing 29 is pressed against the front side wall 10 b of the storage housing 8. A gap S ₁ (see FIG. 7) generated between the front surface and the front wall surface of the storage groove 5 can be closed.

Further, side water-stopping packings 30 and 30 are disposed on the front surfaces of the left and right ends of the waterproof plate 6. As shown in FIG. 5 and the like, the side water-stop packings 30, 30 have vertical plate-like support edges 32, 32 whose upper and lower ends are joined to the rising edge 28 and the downward bent edge 31 of the cover plate 15. When the waterproof plate 6 is pressed forward by the holding means in a state where the waterproof plate 6 is supported at the unfolded position via the support means, as shown in FIG. The water-stop packings 30 and 30 are pressed against the support edge portions 14a and 14a located on the front side of the guide members 12 and 12, whereby the front surfaces of the left and right ends of the waterproof plate 6 and the front of the guide members 12 and 12 are placed. A gap S ₂ (see FIG. 7) generated between the support edge portions 14a and 14a located on the side of the portion and the inner wall surface can be closed.

  In such a configuration, the waterproof plate 6 is housed in the housing groove 5 as shown in FIGS. In this state, the opening 4 of the storage groove 5 is blocked by the cover plate 15 provided at the upper end of the waterproof plate 6 so as to be substantially flush with the surrounding floor surface 7. The opening 4 of the storage groove 5 does not obstruct traffic.

On the other hand, when there is a possibility of flooding due to heavy rain or storm surge, the handle rods 16, 16 raised from the lying state are gripped, and the upper side of the waterproof plate 6 is pulled upward from the storage groove 5. After converting to the deployed position, the engaging members 19, 19 provided on the left and right side walls 3, 3 of the doorway 2 are advanced and engaged with the handle rods 16, 16 in a standing state from below, As shown in FIG. 7, the waterproof plate 6 can be supported at the deployed position. Subsequently, the engaging members 25, 25 of the rotating levers 23, 23 are provided on the guide members 12, 12 through the rotating operation of the left and right rotating levers 23, 23 provided on the waterproof board 6. When the engagement pieces 20 and 20 are rotated to positions close to the contact surfaces 22 and 22, respectively, the guide inclined surfaces 21 and 21 that guide the engagement portions 25 and 25 to the contact positions along with the rotation. As a result, the waterproof plate 6 is pressed forward and pressed against the housing grooves 5 and the opposing surfaces of the guide members 12 and 12, so that the waterproof plate 6 is held so as not to move back and forth. As shown in FIG. The entrance / exit 2 of the building is shielded by the plate 6, and it is possible to prevent inundation into the building during a flood. At this time, as shown in FIG. 8, the gap S ₁ (see FIG. 7) between the front surface of the waterproof plate 6 and the front wall surface of the storage groove 5 is closed by the main waterproofing packing 29, A gap S ₂ (see FIG. 7) between the front surfaces of both end portions and the inner wall surfaces of the support edge portions 14 a and 14 a located on the front side of the guide members 12 and 12 is closed by the side water-stop packings 30 and 30. Thus, water leakage from these gaps can be prevented.

  On the other hand, in order to return the waterproof plate 6 from the deployed position to the retracted position, the engaging portions 25 and 25 and the engaged piece portions 20 and 20 are connected via a rotating operation of the rotating levers 23 and 23 in the reverse direction. In a state where the close state is released and the waterproof plate 6 is slightly lifted upward, the engagement members 19 and 19 are retracted to release the engagement with the handle rods 16 and 16, whereby the waterproof plate 6 is self-weighted. And can be stored in the storage groove 5.

  As described above, in the present invention, since the waterproof plate 6 is a liftable type, it is not necessary to separately secure a storage place for the waterproof plate when not in use as in the conventional configuration, and the waterproof plate is transported. Time and effort can be eliminated. In addition, the opening 4 provided at the upper end of the storage groove 5 is located immediately below the waterproof board 6 in a state where the waterproof board 6 is pulled upward, and has a narrow opening that allows the waterproof board 6 to be raised and lowered. Therefore, there is no step where a person falls into the storage groove 5 or a step is taken, unlike the conventional configuration. Thereby, high safety can be obtained.

  In the above-described embodiment, the storage groove 5 is formed by the side peripheral wall 9 of the storage housing 8. However, the storage groove 5 is formed by placing concrete on a formwork assembled in a predetermined shape. It is also possible to do. In the embodiment, the guide inclined surface 21 is formed on the front side surface of the engaged piece 20. Instead, the guide inclined surface 21 is formed on the engaging portion 25 of the rotating lever 23. It can also be formed on the rear side.

It is a rear view which shows the state which accommodated the waterproof board 6 in the construction state of the waterproof apparatus 1 concerning this invention. In the construction state same as the above, it is action explanatory drawing which shows the state which shielded the entrance / exit 2 with the waterproof board 6. FIG. It is a sectional side view which shows the state which accommodated the waterproof board. FIG. 3 is a partially cutaway perspective view showing configurations of a storage housing 8 and a guide member 12. 2 is a partially cutaway perspective view showing the configuration of the front side of the waterproof board 6. FIG. FIG. 3 is a partially cutaway perspective view showing the configuration of the rear surface side of the waterproof board 6. It is a sectional side view which shows the state which converted the waterproof board 6 into the expansion | deployment position. It is a sectional side view which shows the state which hold | maintained the waterproof board 6 converted into the expansion | deployment position so that front-back movement was impossible by the holding means.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Waterproofing device 2 Entrance / exit 3 Side wall 4 Opening part 5 Storage groove 6 Waterproof board 7 Floor surface 8 Storage housing | casing 9 Side peripheral wall 12 Guide member 13 Mounting plate part 14a, 14b Support edge part 15 Cover plate 16 Handle hook (held part) )
19 Engagement member (hanging part)
20 Engagement piece (holding means)
21 Guide inclined surface 23 Rotating lever (holding means)
24 gripping portion 25 engaging portion 29 Shutomesui packing 30 side waterproofing packing S ₁ gap S ₂ gap

Claims (7)

In a waterproof device that is installed between the left and right side walls of the entrance of a building and prevents water from entering the building from the entrance during a flood,
An opening at the upper end, and a substantially rectangular storage groove formed in the ground of the doorway so that the opening is substantially flush with the floor surface of the doorway;
A mounting plate portion extending in the vertical direction; and a support edge portion projecting inward from the front and rear end edges of the mounting plate portion with a predetermined width; at positions above the left and right side portions of the storage groove, A pair of left and right guide members whose mounting plate portions are respectively fixed to the left and right side walls;
A deployment position that is disposed in the storage groove so as to be movable up and down, and is pulled out upward from the opening by an upward pulling operation to shield the entrance / exit, and moves downward from the deployment position into the storage groove. A waterproof plate that can be converted into a storage position to be stored;
A suspended portion disposed on the upper portion of the waterproof plate, and a suspended portion provided on the left and right side walls of the entrance and exit, supporting the suspended portion at the unfolded position and supporting the waterproof plate so as not to move down. A supporting means comprising:
A waterproof device comprising: holding means for holding the waterproof plate so as not to move back and forth at the deployed position. The waterproof plate support means
The suspended part provided on the upper part of the waterproof board is composed of handle rods that can be raised and lowered at the left and right end parts of the upper surface of the waterproof board, and the suspended parts provided on the left and right side walls of the doorway The waterproof device according to claim 1, wherein the waterproof device is configured by an engaging member which is disposed on the left and right side walls so as to be able to advance and retreat, and engages with the handle rod standing in an upright position from below. The means for holding the waterproof plate is
An engaged piece disposed on the inner wall surface of the support edge located on the rear side of the guide member, a gripping portion at one end, an engagement portion at the other end, and pivotally supported by a waterproof plate A pivot lever that pivots substantially parallel to the waterproof plate and that can be pivoted to a close position where the engaging portion is in close contact with the engaged piece portion; 3. A guide inclined surface that guides the engaging portion to the close position as the rotating lever rotates, according to any of the engaging portions of the moving lever. Waterproof device.   The main water blocking packing for closing a gap formed between the front surface of the waterproof plate converted to the deployed position and the front wall surface of the storage groove is disposed on the front surface of the waterproof plate. Item 4. The waterproof device according to any one of items 3.   Sides that block gaps that occur between the front surfaces of the left and right ends of the waterproof plate converted to the unfolded position and the inner wall surface of the support edge located on the front side of the guide member, in front of the left and right ends of the waterproof plate The waterproof device according to any one of claims 1 to 4, wherein a water-stopping packing is provided.   6. The waterproof device according to claim 1, wherein the storage groove is formed by a side peripheral wall of a storage housing for storing the waterproof plate so as to be movable up and down. The lid plate for closing the opening of the storage groove so as to be substantially flush with the floor at the storage position of the waterproof plate is disposed at the upper end of the waterproof plate. The waterproof device described in any one.

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