Water cut-off structure for building, and water cut-off device

Abstract

To provide a water cut-off structure for a building, and a water cut-off device.SOLUTION: A water cut-off structure includes: a frame body 20 including a pair of vertical frames 21 and a lower frame 22 and attached to an outer wall 10 so as to surround an opening part H; a water cut-off plate 30 capable of being mounted on the lower frame 22; a seal part 40 including a pair of vertical seal parts 42 arranged between the pair of vertical frames 21 and the water cut-off plate 30 and a lower seal part 41 arranged between the lower frame 22 and the water cut-off plate 30; and an attachment mechanism 50 having a driving input gear 51 provided on the water cut-off plate 30 and an energizing mechanism compressing the pair of vertical seal parts 42 between the water cut-off plate 30 and the pair of vertical frames 21 by receiving driving force inputted to the driving input gear 51 as well as energizing the water cut-off plate 30 in an indoor direction and a lower direction so as to compress the lower seal part 41 between the water cut-off plate 30 and the lower frame 22.SELECTED DRAWING: Figure 3

Description

Technical Field

[0001] The present invention relates to a water stop structure and a water stop device for a building.

Background Art

[0002] Conventionally, a water stop structure for closing an opening of a building to prevent water intrusion is known. Patent Document 1 discloses a flood prevention device that can be assembled in the passage of the building entrance during emergencies such as heavy rain and floods and exhibits a function of preventing flooding into the building.

[0003] In this technology, the flood prevention device includes a support member having a U-shaped vertical groove provided on both side wall surfaces of the building passage, a water stop panel that closes the building passage by crimping both side ends to the inner surface of the vertical groove of the support member, a panel receiving beam member installed on the floor surface of the passage to receive the lower end surface of the water stop panel, a first crimping means for crimping the lower end surface of the water stop panel onto the panel receiving beam member, a second crimping means for crimping and fixing the panel receiving beam member onto the floor surface, and a panel fixing means for crimping and fixing both side ends of the water stop panel to the inner surface of the vertical groove of the support member.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] In the technology described in Patent Document 1, an operator needs to operate the first crimping means, the second crimping means, and the panel fixing means arranged at different positions in sequence to fix the water stop panel and exhibit its water stop function. In this case, during emergencies such as heavy rain and floods, the water stop structure cannot be installed easily and promptly, and there is a problem of poor installation workability.

[0006] An object of the present invention is to provide a water stop structure and a water stop device for a building that can be easily and quickly installed in an emergency such as heavy rain or flood.

Means for Solving the Problems

[0007] Provided by the first invention is a water stop structure for a building that prevents water from entering the indoor side from an opening formed in a wall portion of the building, including a pair of vertical frames extending in the vertical direction and a lower frame extending in the horizontal direction and connecting the pair of vertical frames, a frame body attached to the wall portion so as to surround the opening, a water stop plate having a shape capable of covering at least a lower portion of the opening and a horizontal dimension overlapping the pair of vertical frames in the inside-outside direction of the building and being capable of being placed on the lower frame, a pair of vertical seal portions disposed along the vertical direction between the pair of vertical frames and the water stop plate on the indoor side of the pair of vertical frames, and a lower seal portion disposed along the horizontal direction between the lower frame and the water stop plate, a seal portion, a driving input portion disposed on the water stop plate, and a biasing mechanism that biases the water stop plate in the indoor direction and the downward direction so as to compress the pair of vertical seal portions between the water stop plate and the pair of vertical frames and compress the lower seal portion between the water stop plate and the lower frame while receiving a driving force input to the driving input portion. The water stop plate mounting mechanism is provided.

[0008] According to this configuration, after placing the water stop plate on the lower frame of the frame body attached to the wall portion so as to surround the opening and inputting a driving force to the driving input portion, the biasing mechanism can bias the water stop plate in the indoor direction and the downward direction so as to compress the pair of vertical seal portions between the water stop plate and the pair of vertical frames and compress the lower seal portion between the water stop plate and the lower frame. Therefore, in an emergency such as heavy rain or flood, the water stop structure can be easily and quickly installed.

[0009] In the second invention, in the first invention, the driving input portion of the water stop plate mounting mechanism is disposed on a surface of the water stop plate facing the indoor side of the building.

[0010] According to this configuration, since the drive input part is arranged on the inner surface of the water stop plate, an operator can input a driving force to the drive input part from the indoor side, and it is possible to prevent the operator from getting wet by rainwater or the like for installing the water stop plate.

[0011] A third invention is the invention according to the first or second invention, wherein the biasing mechanism of the water stop plate mounting mechanism includes an engaging part and a moving part capable of moving the engaging part between an engaged position and a disengaged position by receiving the driving force, wherein the engaged position is a position where the engaging part sandwiches the vertical frame and the vertical seal part from both sides with the water stop plate in the inner and outer directions, and the disengaged position is a position where the engaging part is separated from the vertical frame, and the moving part.

[0012] According to this configuration, the moving part can move the engaging part between the engaged position and the disengaged position by the driving force input to the drive input part. In particular, in the engaged position, the engaging part sandwiches the vertical frame and the vertical seal part from both sides with the water stop plate in the inner and outer directions, so that the vertical seal part can be stably compressed and the water stop performance can be exhibited. Also, in the disengaged position, since the engaging part is separated from the vertical frame, it is possible to prevent the engaging part from interfering with the removal operation of the water stop plate.

[0013] A fourth invention is the invention according to the third invention, wherein the engaging part is supported by the water stop plate so as to be rotatable about a central axis, the moving part rotates the engaging part between the engaged position and the disengaged position by receiving the driving force, and a surface of the engaging part facing the vertical frame is tapered and inclined from the disengaged position toward the engaged position.

[0014] According to this configuration, by the moving part rotating the engaging part, the engaging part can be easily moved between the engaged position and the disengaged position. In particular, since one surface of the engaging part is tapered and inclined toward the engaged position, the biasing force of the water stop plate in the indoor direction by the engaging part can be gradually increased, and the sealing performance of the vertical seal part can be exhibited.

[0015] The fifth invention is that in the third invention, the vertical frame is an abutting portion that abuts against the engaging portion at the engaging position, and has an abutting portion that can move the water stop plate downward by the driving force while preventing the upward movement of the engaging portion.

[0016] According to this configuration, when the engaging portion abuts against the abutting portion, the driving force input to the driving input portion can be converted into a downward moving force of the water stop plate, in other words, the compression action of the lower seal portion.

[0017] The sixth invention is that in the first to fifth inventions, the water stop plate mounting mechanism further has an operation handle that is rotatably supported by the water stop plate and receives an operation for inputting a rotational driving force to the driving input portion.

[0018] According to this configuration, by an operator operating the operation handle, a driving force can be easily input to the driving input portion, and the mounting work of the water stop plate can be performed.

[0019] The seventh invention is that in the first to sixth inventions, the frame body is a lid portion supported by the vertical frame so as to be switchable between an open state and a closed state with respect to the vertical frame, the open state is a state that enables the water stop plate to be placed on the lower frame, the closed state is a state that prevents the water stop plate from being placed on the lower frame, a lid portion, and a locking mechanism capable of locking the water stop plate so as to compress the lower seal portion in the closed state of the lid portion.

[0020] According to this configuration, the water stop plate can be easily attached to the frame body by opening and closing the lid portion, and by locking the water stop plate at the engaging position of the engaging portion by the locking mechanism after the lid portion is closed, the downward displacement of the water stop plate can be maintained, and the sealing performance of the lower seal portion can be stably maintained.

[0021] The eighth invention provides a water stop device comprising: a frame body including a pair of vertical frames extending in the up-down direction and a lower frame extending in the left-right direction connecting the pair of vertical frames; a water stop plate having left-right dimensions such that it overlaps at least the pair of vertical frames and capable of being placed on the lower frame; a sealing portion including a pair of vertical sealing portions arranged in the up-down direction between the pair of vertical frames and the water stop plate, and a lower sealing portion arranged in the left-right direction between the lower frame and the water stop plate; and a water stop plate mounting mechanism arranged on the water stop plate and having a drive input portion and a biasing mechanism that receives a drive force input to the drive input portion to compress the pair of vertical sealing portions between the water stop plate and the pair of vertical frames, while biasing the water stop plate so as to compress the lower sealing portions between the water stop plate and the lower frame.

[0022] With this configuration, when the frame is attached to the wall surrounding the opening of a building and the waterstop is placed on the lower frame, and a driving force is applied to the drive input unit, the biasing mechanism compresses the pair of vertical seals between the waterstop and the pair of vertical frames, while biasing the waterstop so that the lower seal is compressed between the waterstop and the lower frame. This allows the waterstop device to be installed easily and quickly in emergencies such as heavy rain or flooding. [Effects of the Invention]

[0023] According to the present invention, it is possible to provide a water stop structure and a water stop device for a building that can be easily and quickly installed in emergencies such as heavy rain or flooding. [Brief explanation of the drawings]

[0024]

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Embodiments for Carrying Out the Invention

[0025] Hereinafter, with reference to the drawings, a water stop structure (water stop device) of a building according to an embodiment of the present invention will be described. FIG. 1 is a longitudinal sectional view of an opening H of a building and the water stop structure according to this embodiment. FIG. 2 is a horizontal sectional view of the opening H of the building and the water stop structure according to this embodiment. FIG. 3 is a front view of the water stop structure of the building according to this embodiment, as seen from the indoor side. In each of the subsequent figures including these figures, for the sake of easy explanation, the inside-outside direction, left-right direction, and up-down direction of the building are illustrated as necessary, but these directions do not limit the present invention. Among the inside-outside directions, the inward direction is the direction facing the interior of the building, and the outward direction is the direction facing the exterior of the building.

[0026] The building is, for example, a wooden house, and may also be a steel-frame house. Further, the building may be a building. In this embodiment, the case where the building is a house will be described as an example. The building includes an outer wall 10, an interior wall 11, a plurality of sashes 12, a floor material 14, and a shutter rail 16.

[0027] The outer wall 10 constitutes the exterior of the building and extends in the left-right direction and the up-down direction in each figure. The outer wall 10 constitutes the wall portion in this embodiment.

[0028] The interior wall 11 is arranged at a distance inside the exterior wall 10. The interior wall 11 and the exterior wall 10 constitute the wall part in this embodiment. An opening H is formed in the interior wall 11. The opening H communicates the outside of the building with the interior of the building. In this embodiment, the opening H has a rectangular shape extending in the vertical and horizontal directions.

[0029] The interior wall 11 defines the interior space. The interior wall 11 has a wall body 11A and a window frame 11B. The wall body 11A is a wall arranged parallel to the exterior wall 10. The window frame 11B extends from the wall body 11A toward the outside of the room so as to surround the opening H. In FIG. 2, only a part of the window frame 11B is shown, but the window frame 11B is arranged so as to surround the opening H from above, below, left, and right.

[0030] A plurality of sashes 12 are slidable in the horizontal direction so as to open and close the opening H. In this embodiment, two sashes 12 are arranged with respect to the opening H.

[0031] The flooring 14 is a plate material arranged to extend horizontally in the interior of the building. The flooring 14 is arranged at a position corresponding to the lower ends of the plurality of sashes 12. In other words, in this embodiment, the window portion constituted by the opening H and the plurality of sashes 12 is a sweep-out window continuous with the flooring 14. Although not shown in FIG. 1, the lower end portion of the exterior wall 10 is connected to the ground, and as an example, the height of the flooring 14 from the ground is set to be 400 or more and 600 mm or less.

[0032] As shown in FIG. 2, the shutter rail 16 is arranged to protrude from the exterior wall 10 on the left and right outer sides of the sash 12 and extends in the vertical direction. Note that a shutter rail 16 is similarly arranged on the opposite side (right side) of the sash 12 in FIG. 2. These pair of shutter rails 16 have a function of guiding up and down a shutter (not shown) that covers the window portion from the outside of the room.

[0033] The water stop structure of the building according to the present embodiment has a function of preventing water from entering the indoor side from the opening H opened in the wall portion of the building as described above. Hereinafter, prevention of water intrusion at the water level of the general floor water intrusion level of a house will be described as an example. The water stop structure includes a frame body 20, a water stop plate 30, a seal portion 40, and a mounting mechanism 50 (water stop plate mounting mechanism).

[0034] When the building is viewed from the outdoor side, the frame body 20 is arranged in a U shape so as to surround the periphery of the opening H and is attached to the outer wall 10. The frame body 20 has a pair of left and right vertical frames 21 and a lower frame 22. The pair of vertical frames 21 are fixed to the outer wall 10 so as to extend in the vertical direction at positions spaced apart from the left and right outer sides of the opening H. In FIG. 2, only the left vertical frame 21 appears. The lower frame 22 is arranged at a distance below the opening H and is fixed to the outer wall 10 so as to connect the lower end portions of the pair of vertical frames 21 along the left-right direction. The frame body 20 is made of metal or resin and can be fixed to the outer wall 10 by fastening tools such as bolts and screws. Note that the frame body 20 may be a frame member having other functions provided in the building in advance, or a member dedicated to the water stop structure (water stop device).

[0035] As shown in FIG. 2, the vertical frame 21 has a vertical frame main body portion 21A, an outer extension portion 21B, and a water stop plate facing portion 21C. The vertical frame main body portion 21A is fixed to the outer surface of the outer wall 10 with screws or the like and has a rectangular cross section as shown in FIG. 2. The outer extension portion 21B extends outward in the inner-outer direction from the tip of the vertical frame main body portion 21A. The water stop plate facing portion 21C protrudes from the center portion in the inner-outer direction of the outer extension portion 21B toward the opening H side (the right side in FIG. 2). As a result, the outer extension portion 21B and the water stop plate facing portion 21C form an L-shaped space for receiving the water stop plate 30.

[0036] The water stop plate 30 is a plate material having a rectangular shape when viewed from the inside-outside direction. As an example, the water stop plate 30 is composed of an aluminum honeycomb panel or a metal-resin sandwich panel. The water stop plate 30 can be placed on the lower frame 22 as shown in FIG. 1. The water stop plate 30 has a shape capable of covering at least the lower portion of the opening H and left and right dimensions that overlap a pair of vertical frames 21 in the inside-outside direction. When the water stop plate 30 adheres closely to the frame body 20, water intrusion from the outside of the building into the inside of the building through the opening H is blocked. Note that it is desirable for the water stop plate 30 to be stored inside the building except in emergencies such as heavy rain or floods. Also, in FIG. 1, a predetermined water intrusion prevention treatment is applied between the lower frame 22 of the frame body 20 and the outer wall 10.

[0037] The seal part 40 is interposed between the frame body 20 and the water stop plate 30 and has the function of blocking the above-mentioned water intrusion. The seal part 40 has a lower seal part 41 and a pair of vertical seal parts 42. The lower seal part 41 is disposed along the left-right direction between the lower frame 22 and the water stop plate 30. Each of the pair of vertical seal parts 42 is disposed along the up-down direction between the pair of vertical frames 21 and the water stop plate 30. Note that in the present embodiment, the seal part 40 is integrated with the water stop plate 30. In other embodiments, the seal part 40 may be disposed in advance on the frame body 20 side. However, in order to prevent the seal part 40 from deteriorating due to long-term placement, it is desirable for the seal part 40 to be integrated with the water stop plate 30 as described above. Also, as the seal part 40, by using EPDM rubber or hollow-shaped resin rubber, etc., the water stop function can be exhibited even with low compression.

[0038] As shown in FIG. 1, the attachment mechanism 50 has the function of bringing the water stop plate 30 placed on the lower frame 22 into close contact with the frame body 20. In the present embodiment, four attachment mechanisms 50 are arranged on the inner surface (the surface facing the interior of the building) of the water stop plate 30. Specifically, two attachment mechanisms 50 (FIG. 3) are arranged vertically side by side on the left side of the water stop plate 30, and another two attachment mechanisms 50 (not shown) are arranged vertically side by side on the right side of the water stop plate 30.

[0039] The attachment mechanism 50 includes a drive input gear 51 (drive input part), an operation handle 52, a moving part 53 (a part of the biasing mechanism), and an engaging part 55 (a part of the biasing mechanism, also referred to as a crimping part).

[0040] The drive input gear 51 receives a driving force as the operator operates the operation handle 52. In this embodiment, this driving force is a rotational force. The operation handle 52 has a so-called ratchet mechanism and can be rotated upward or downward by the operator. That is, the operation handle 52 receives an operation for inputting a rotational driving force to the drive input gear 51.

[0041] The moving part 53 and the engaging part 55 function as a biasing mechanism. The biasing mechanism receives the driving force input to the drive input gear 51 and biases the water stop plate 30 in the indoor direction and downward so as to compress the pair of vertical seal parts 42 between the water stop plate 30 and the pair of vertical frames 21 and compress the lower seal part 41 between the water stop plate 30 and the lower frame 22.

[0042] FIG. 4 is an enlarged horizontal sectional view of the water stop structure of the building according to this embodiment, showing the engaging part 55 disposed at the disengaged position. FIG. 5 is an enlarged front view of the water stop structure of the building according to this embodiment as viewed from the indoor side, showing the engaging part 55 disposed at the disengaged position. FIG. 6 is an enlarged horizontal sectional view of the water stop structure of the building according to this embodiment, showing the engaging part 55 disposed at the engaged position. FIG. 7 is an enlarged front view of the water stop structure of the building according to this embodiment as viewed from the indoor side, showing the engaging part 55 disposed at the engaged position.

[0043] Referring to FIG. 5, the operation handle 52 is rotatable up and down about the rotation center axis of the drive input gear 51. It has a handle body 521 and an engagement gear 522. The handle body 521 is the main body part of the operation handle 52. On the opposite side of the region of the handle body 521 that engages with the drive input gear 51 in the longitudinal direction, a gripping portion that can be gripped by the operator is formed. The engagement gear 522 is a sector-shaped gear housed inside the handle body 521. The engagement gear 522 is engageable with the gear formed on the outer periphery of the drive input gear 51. Also, when the operator moves a switching piece (not shown) provided on the handle body 521, the posture and position of the engagement gear 522 inside the handle body 521 are switched. As a result, the rotation direction of the drive input gear 51 according to the rotation direction of the operation handle 52 is switched.

[0044] Also, the moving part 53 has a first gear 53A and a second gear 53B.

[0045] The first gear 53A is a gear rotatably supported by the water stop plate 30 on the left side of the drive input gear 51 (the side close to the vertical frame 21 and the vertical seal part 42). The second gear 53B is a gear rotatably supported by the water stop plate 30 on the left side of the first gear 53A. The first gear 53A is engaged with the drive input gear 51, and the second gear 53B is engaged with the first gear 53A. As a result, when the drive input gear 51 rotates, its rotational driving force is transmitted to the first gear 53A and the second gear 53B, and the second gear 53B rotates. In this way, by providing the first gear 53A, the rotation direction when this mechanism operates is determined, and it is easy for the operator to apply force to the operation handle 52. In other words, by moving downward in a direction where it is easy to put weight on, the water stop plate 30 can be easily crimped.

[0046] Here, in this embodiment, the outer diameter of the first gear 53A is set larger than the outer diameter of the drive input gear 51. Due to this outer diameter ratio, the water stop plate 30 can be easily installed with a slight up and down movement of the operator operating the operation handle 52.

[0047] The engaging portion 55 is a fan-shaped member fixed to a part of the circumferential direction (rotational direction) of the second gear 53B. That is, the engaging portion 55 is supported by the water stop plate 30 so as to be rotatable about the rotation center axis of the second gear 53B.

[0048] The engaging portion 55 has a first end portion 551 and a second end portion 552. The first end portion 551 corresponds to one end portion in the circumferential direction of the engaging portion 55. The second end portion 552 corresponds to the other end portion in the circumferential direction of the engaging portion 55, that is, the region on the side opposite to the first end portion 551. The plate thickness of the second end portion 552 is set to be thicker than the plate thickness of the first end portion 551. In other words, the surface of the engaging portion 55 facing the outer extension portion 21B of the vertical frame 21 is inclined in a tapered shape from the engagement release position toward the engagement position (FIG. 6).

[0049] The above-described moving portion 53 can move (rotate) the engaging portion 55 between the engagement position and the engagement release position by receiving the driving force from the operation handle 52. The engagement position is a position where the engaging portion 55 sandwiches the outer extension portion 21B of the vertical frame 21 and the vertical seal portion 42 from both sides in the inner and outer directions with respect to the water stop plate 30, and the engagement release position is a position where the engaging portion 55 is separated to the right from the outer extension portion 21B.

[0050] Furthermore, the water stop plate 30 has a first pin 61, a second pin 62, and a third pin 63. The vertical frame 21 has a fourth pin 64 (contact portion). These pins constitute a part of the water stop structure according to the present embodiment.

[0051] The first pin 61 is a pin protruding from the inner surface of the water stop plate 30 toward the indoor direction. The first pin 61 restricts the upper limit position of the rotation range of the operation handle 52. In particular, in the present embodiment, the first pin 61 is arranged so as to restrict the movement of the operation handle 52 in the region above the height of the water stop plate 30.

[0052] Similarly, the second pin 62 is a pin protruding from the inner surface of the water stop plate 30 toward the indoor side. The second pin 62 restricts the lower limit position of the rotation range of the operation handle 52. The third pin 63 is a pin protruding from the inner surface of the water stop plate 30 directly below the first gear 53A. The third pin 63 restricts the right end portion (engagement release position) of the rotation range of the engagement portion 55. The fourth pin 64 is a pin protruding from the inner surface of the water stop plate facing portion 21C toward the indoor side. The fourth pin 64 restricts the left end portion (upper end portion) of the rotation range of the engagement portion 55.

[0053] In the water stop structure of the building according to the present embodiment, when heavy rain, flood, etc. occur around the building, the operator prepares the water stop plate 30. The operator opens the sash 12 from the indoor side to open the opening H, holds the water stop plate 30, and places it on the lower frame 22 (FIG. 1). At this time, the lower seal portion 41 is located between the water stop plate 30 and the lower frame 22, and the vertical seal portion 42 is located between the water stop plate facing portion 21C of the pair of left and right vertical frames 21 and the water stop plate 30. Note that the lower end portions of the pair of vertical seal portions 42 and the left and right end portions of the lower seal portion 41 are connected. Also, the attachment mechanism 50 at this time is in the state shown in FIGS. 4 and 5.

[0054] Next, the operator rotates the operation handle 52 downward as shown by the arrow in FIG. 7. At this time, the rotational force of the operation handle 52 is transmitted to the drive input gear 51, the first gear 53A, and the second gear 53B, and the engagement portion 55 starts to rotate from the engagement release position toward the engagement position. When the operation handle 52 reaches the lower limit position, the operator rotates the operation handle 52 upward as shown by the arrow in FIG. 5. At this time, since the engagement gear 522 of the operation handle 52 does not engage with the drive input gear 51, the drive input gear 51 does not rotate (idles). Then, when the operation handle 52 reaches the upper limit position, the operation handle 52 is rotated downward again, and similarly, the engagement portion 55 rotates toward the engagement position.

[0055] Eventually, while the inclined surface formed on the engaging portion 55 slides against the water stop plate facing portion 21C of the vertical frame 21, the engaging portion 55 rotates upward. As a result, the vertical seal portion 42 is gradually compressed between the water stop plate 30 and the water stop plate facing portion 21C (arrow D2 in Fig. 2). In other words, the water stop plate 30 is pulled inward by the engaging portion 55. As a result, the sealing function (water intrusion prevention function) of the vertical seal portion 42 is improved.

[0056] After that, when the first end portion 551 of the engaging portion 55 abuts against the fourth pin 64 as shown in Fig. 3, the rotation of the engaging portion 55 is restricted. When the operator further rotates the operation handle 52 downward, since the rotation of the engaging portion 55 is restricted, the water stop plate 30 itself moves downward by the driving force input from the operation handle 52 (arrow D3 in Fig. 3). As a result, the lower seal portion 41 is compressed between the water stop plate 30 and the lower frame 22 (Fig. 1), and the sealing function of the lower seal portion 41 is improved.

[0057] Thus, the fourth pin 64 has a function of moving the water stop plate 30 downward by the driving force while preventing the upward movement of the engaging portion 55 by abutting against the engaging portion 55 at the engaging position.

[0058] The operator can stably attach and fix the water stop plate 30 to the frame body 20 by operating the four mounting mechanisms 50 provided on the water stop plate 30. Since the vertical seal portion 42 has a repulsive force in the inner and outer directions in a state where the inclined surface of the engaging portion 55 is engaged with the water stop plate facing portion 21C, the reverse rotation of the engaging portion 55 is suppressed, and the detachment of the engaging portion 55 is prevented. Furthermore, since the rotation range of the operation handle 52 is restricted by the first pin 61 and the second pin 62, similarly, the unintentional rotation of the engaging portion 55 after the water stop plate 30 is attached can be prevented (rotation prevention function).

[0059] When the operator removes the water stop plate 30, the operator first operates a switching piece (not shown) provided on the operation handle 52 in advance to switch the position of the engagement gear 522. Then, when the operation handle 52 is rotated upward as shown by the arrow in FIG. 5, the engaging portion 55 moves from the engaged position to the disengaged position by the reverse procedure as described above. At this time, the downward rotation of the operation handle 52 becomes idling rotation.

[0060] In the present embodiment, as described above, the engaging portion 55 is in sliding contact with the water stop plate facing portion 21C at the engaged position by the downward rotation of the operation handle 52. Therefore, it is easy for the operator operating the operation handle 52 to apply a downward force, and the water stop plate 30 can be easily installed.

[0061] <Regarding the detachment prevention mechanism of the engaging portion 55> Next, the detachment prevention mechanism of the engaging portion 55 engaged with the water stop plate facing portion 21C in the present embodiment will be described. FIG. 8 is a front view of the building water stop structure according to the present embodiment in a state where the water stop plate 30 is removed and the lid 211 of the vertical frame 21 is closed. FIG. 9 is a front view showing a state where the water stop plate 30 is inserted into the frame body 20 from the state of FIG. 8. FIG. 10 is a front view of the state where the insertion of the water stop plate 30 is completed and the lid 211 is closed from the state of FIG. 9. FIG. 11 is a front view of the state where the water stop plate 30 is biased downward from the state of FIG. 10.

[0062] In the present embodiment, there is a mechanism for maintaining the state where the mounted water stop plate 30 is biased downward. Specifically, as shown in FIG. 8, the vertical frame 21 further includes a lid 211 (lid portion), a latch guide 212, a latch 213, a spring 214, and a wire W. Note that the latch guide 212, the latch 213, the spring 214, and the wire W constitute a locking mechanism in the present embodiment.

[0063] The lid 211 is arranged so as to be positioned above the water stop plate 30 when viewed along the left-right direction. The lid 211 is rotatable up and down about the lid fulcrum portion 211S in FIG. 8 as a fulcrum. The lid 211 can be switched between the closed state shown in FIG. 8 and the open state shown in FIG. 9 by the rotation.

[0064] The latch guide 212 is fixed to the vertical frame 21 below the lid 211 and guides the latch 213 to slide in the left - right direction. The latch 213 is a member for regulating the position of the water - stop plate 30 and is housed in the latch guide 212. The spring 214 is a spring that can expand and contract between the latch 213 and the vertical frame 21. Its proximal end is fixed to the vertical frame 21 and its distal end is fixed to the latch 213. The wire W is disposed so as to connect the central portion of the lid 211 and the latch 213.

[0065] When the water - stop plate 30 is not attached to the vertical frame 21, the lid 211 is closed as shown in FIG. 8. On the other hand, when attaching the water - stop plate 30 to the vertical frame 21, as shown in FIG. 9, the lid 211 is opened with respect to the vertical frame 21. As a result, as shown by the arrow in FIG. 9, the water - stop plate 30 can be attached to the frame body 20 from above. At this time, the wire W connected to the lid 211 pulls the latch 213, so that the latch 213 retreats from the passing area of the water - stop plate 30 and the latch 213 does not prevent the attachment of the water - stop plate 30.

[0066] As shown in FIG. 1, when the water - stop plate 30 is placed on the lower frame 22, the operator can close the lid 211 as shown in FIG. 10. At this time, the latch 213 is biased by the spring 214 toward the side surface of the water - stop plate 30. Also, before the operator operates the attachment mechanism 50, the water - stop plate 30 is not yet positively biased downward.

[0067] After that, as described above, when the operator operates the attachment mechanism 50 and the engaging portion 55 reaches the engaging position, the water stop plate 30 is urged downward while compressing the lower seal portion 41. At this time, as shown in FIG. 11, as the position of the water stop plate 30 drops, the latch 213 is pushed out by the spring 214, and the latch 213 engages with the upper surface portion of the water stop plate 30. As a result, the engaging portion 55 is prevented from detaching from the water stop plate facing portion 21C and the water stop plate 30 from rising, thereby preventing the sealing performance of the lower seal portion 41 from deteriorating. Note that the position where the detachment prevention mechanism exemplified by the latch 213 engages with the water stop plate 30 is not limited to the upper surface of the water stop plate 30. For example, the latch 213 may engage with a groove (not shown) formed on the side surface of the water stop plate 30.

[0068] As described above, in the present embodiment, after placing the water stop plate 30 on the lower frame 22 of the frame body 20 attached to the outer wall 10 so as to surround the opening H, when a driving force is input to the driving input gear 51, the water stop plate 30 and the pair of vertical frames 21 are compressed by the biasing mechanism. While compressing the pair of vertical seal portions 42, the water stop plate 30 can be biased inward and downward of the room so as to compress the lower seal portion 41 between the water stop plate 30 and the lower frame 22. Therefore, in the event of an emergency such as heavy rain or flood, the water stop structure can be installed easily and quickly. In addition, since the operator only needs to operate the attachment mechanism 50, the water stop plate 30 can be arranged at a predetermined position where the water stop performance is exhibited, so that not only adult men but also women and the elderly can easily install it.

[0069] Further, in the present embodiment, since the attachment mechanism 50 including the driving input gear 51 is disposed on the inner surface of the water stop plate 30, the operator can input a driving force to the driving input gear 51 from the indoor side, and it is suppressed that the operator gets wet by rainwater or the like for installing the water stop plate 30.

[0070] In particular, in the present embodiment, the driving force input to the driving input gear 51 can move the moving part 53 to move the engaging part 55 between the engaged position and the disengaged position. In particular, in the engaged position, the engaging part 55 sandwiches the vertical frame 21 and the vertical seal part 42 from both sides in the inner and outer directions with the water stop plate 30, so that the vertical seal part 42 can be stably compressed and the water stop performance can be exhibited. Further, in the disengaged position, since the engaging part 55 is separated from the vertical frame 21, it is possible to prevent the engaging part 55 from interfering with the removal operation of the water stop plate 30.

[0071] Furthermore, in the present embodiment, the moving part 53 rotates the engaging part 55, so that the engaging part 55 can be easily moved between the engaged position and the disengaged position. In particular, since one surface of the engaging part 55 is inclined in a tapered shape toward the engaged position, the biasing force of the water stop plate 30 in the indoor direction by the engaging part 55 can be gradually increased, and the sealing performance of the vertical seal part 42 can be exhibited.

[0072] Also, in the present embodiment, when the engaging part 55 abuts against the fourth pin 64, the driving force input to the driving input gear 51 can be converted into a downward moving force of the water stop plate 30, in other words, a compressing action on the lower seal part 41.

[0073] Also, in the present embodiment, since the mounting mechanism 50 includes the operation handle 52, an operator can easily input a driving force to the driving input gear 51 by operating the operation handle 52 and perform the mounting operation of the water stop plate 30. Further, compared with the case where the operation handle 52 is separated from the mounting mechanism 50, there is no need to lose the operation handle 52 or prepare it separately.

[0074] Furthermore, in the present embodiment, the lid 211 can be opened and closed to easily attach the water stop plate 30 to the frame body 20. After the lid 211 is closed, the water stop plate 30 is locked at the engaged position of the engaging part 55 (a position where the lower seal part 41 can be compressed) by the locking mechanism, so that the downward displacement of the water stop plate 30 can be maintained, and the sealing performance of the lower seal part 41 can be stably maintained.

[0075] Furthermore, in the present embodiment, as viewed from the interior, the frame body 20 that supports the water stop plate 30 is disposed on the left and right outer sides of the opening H and below the opening H. In such a case, even if a woman or an elderly person can place the water stop plate 30 on the lower frame 22, it is not easy to access the region where the vertical frame 21 and the lower frame 22 are close to the end of the water stop plate 30, in other words, the region where the sealing portion 40 is disposed. However, in the present embodiment, the operation handle 52 (drive input gear 51) is exposed within the region of the opening H, and by simply operating this operation handle 52 by the operator, the engaging portion 55 engages with the water stop plate facing portion 21C of the vertical frame 21 outside the opening H, compressing the lower sealing portion 41 and the vertical sealing portion 42. Therefore, the burden on the operator for expressing the engaging action of this engaging portion 55 (the sealing action of the sealing portion 40) can be greatly reduced.

[0076] <First Modified Embodiment> FIG. 12 is an enlarged front view of the water stop structure of a building according to the first modified embodiment of the present invention as viewed from the interior side, showing the engaging portion disposed at the engaging position. FIG. 13 is a plan view around the restricting portion in the water stop structure of the building according to the present modified embodiment, showing a state where the slider is separated from the first gear. FIG. 14 is a front view around the restricting portion in the water stop structure of the building according to the present modified embodiment, showing a state where the slider is separated from the first gear. FIG. 15 is a plan view around the restricting portion in the water stop structure of the building according to the present modified embodiment, showing a state where the slider is engaged with the first gear. FIG. 16 is a front view around the restricting portion in the water stop structure of the building according to the present modified embodiment, showing a state where the slider is engaged with the first gear.

[0077] In the present modified embodiment, as shown in FIG. 12, the attachment mechanism 50 has a restricting portion 70, which is different from the previous embodiment. In the following description, this difference will be described, and the description of other common points will be omitted. The same applies to the subsequent modified embodiments.

[0078] The restricting part 70 is attached to the inner surface of the water stop plate 30. Specifically, the restricting part 70 is disposed so as to face the outer circumference of the first gear 53A directly below the position where the drive input gear 51 and the first gear 53A engage. In FIGS. 13 to 16, for the sake of explanation, the arrangement of the restricting part 70 is shown by moving it upward.

[0079] The restricting part 70 has a pedestal 71 and a slider 72. The pedestal 71 is fixed to the inner surface of the water stop plate 30. A long hole 71H is formed in the pedestal 71. The slider 72 is supported by the pedestal 71 so as to be slidable in the radial direction of the first gear 53A. For this purpose, a protrusion 72H to be inserted into the long hole 71H is formed on the slider 72. Further, the slider 72 has a lock gear 721 and an operation pin 722. The lock gear 721 is gear teeth formed on the surface of the slider 72 facing the first gear 53A. The operation pin 722 is operated by an operator to switch the position of the slider 72. When the operator moves the slider 72 from the positions shown in FIGS. 13 and 14 to the positions shown in FIGS. 15 and 16 while holding the operation pin 722, the lock gear 721 engages with the first gear 53A. As a result, the rotation of the first gear 53A is blocked. Therefore, in the state where the engaging part 55 is disposed at the engaging position as in the previous embodiment, when the operator operates the slider 72, the rotation of the first gear 53A is blocked, and as a result, the rotation of the second gear 53B and the movement of the engaging part 55 to the disengaging position are blocked. For this reason, the state in which the water stop plate 30 is biased in the indoor direction and the downward direction is maintained, and the water stop plate 30 can stably exhibit the water intrusion prevention function.

[0080] Note that a spring (not shown) for biasing the slider 72 toward the first gear 53A, a fixing member for fixing the slider 72 at a position separated from the first gear 53A, etc. may be further provided. Also, when including the restricting part 70, it may not have the structure of the lid 211 and the locking mechanism in the previous embodiment. Further, as will be described later, the operation handle 52 may be detachable and may not be essential for the water stop structure.

[0081] <Second Modified Embodiment> FIG. 17 is an enlarged front view of the water stop structure of the building according to the second modified embodiment of the present invention as viewed from the indoor side, and is a view in which the engaging portion is arranged at the engaging position. FIG. 18 is a perspective view of the operation handle of the water stop structure of the building according to the present modified embodiment. FIGS. 19(A) and (B) are enlarged views of the periphery of the engaging protrusion of the operation handle of FIG. 18.

[0082] In this modified embodiment, it is different from the previous embodiment in that the mounting mechanism 50 does not have the operation handle 52. That is, the drive input gear 51 and the moving part 53 are pre-mounted on the inner surface of the water stop plate 30. On the other hand, the operator may separately prepare an operation handle 52M as shown in FIGS. 18 and 19. As an example, the operation handle 52M is a commercially available ratchet handle.

[0083] In this modified embodiment, an engaging hole 51H that is exposed in the indoor direction is arranged at the center of the drive input gear 51.

[0084] On the other hand, as shown in FIGS. 19(A) and (B), an engaging protrusion 525 that can engage with the engaging hole 51H is arranged at the tip of the operation handle 52M. As an example, these structures have a rectangular shape, and the rotation of the operation handle 52M can be transmitted as the rotation of the drive input gear 51.

[0085] Further, inside the operation handle 52M, a rotating gear 526 that can rotate integrally with the engaging protrusion 525 and an engaging gear 527 that can allow and block the rotation of the rotating gear 526 are accommodated. The engaging gear 527 has the same structure as the engaging gear 522 of the previous embodiment, and can be switched between FIGS. 9(A) and (B) by operating the switching piece 52N in FIG. 18.

[0086] Therefore, in this modified embodiment, by the operator preparing the operation handle 52M, the operation handle 52M is engaged with the drive input gear 51, and in the same manner as in the previous embodiment, the engaging portion 55 can be rotated to bias the water stop plate 30 in the indoor direction and the downward direction respectively. Also, since multiple operations can be performed with one operation handle 52M, it is not necessary to pre - attach a plurality of operation handles 52 to the water stop plate 30, and the weight of the water stop plate 30 can be reduced.

[0087] Note that, as described in this modified embodiment, the water stop plate 30 may not necessarily have an operation handle 52 attached thereto. Also in this case, the structure including the lid 211 and the latch 213 as described above, and the structure of the restricting portion 70 can prevent the detachment of the engaging portion 55 and the lifting of the water stop plate 30.

[0088] Note that the above - described embodiments can be combined with each other. The water stop device can include some or all of the features of the water stop structure.

[0089] As described above, the water stop structure and the water stop device of the building according to each embodiment of the present invention have been described, but the present invention is not limited thereto, and for example, the following modified embodiments can be adopted.

[0090] (1) In the previous description, when moving between the engaging position and the disengaging position of the engaging portion 55, the engaging portion 55 was described as rotating. However, the engaging portion 55 may slide in the left - right direction.

[0091] (2) In each of the above embodiments, the lower frame 22 has been described as being disposed at a predetermined height from the ground, but the lower frame 22 may be installed on the ground. Further, the water stop structure according to the present invention is not limited to houses and may be applied to other buildings. Also, it is not limited to those in which the mounting mechanism 50 can be reached from the indoor side. Even if it cannot be reached by hand, by connecting between the operation handle 52 and the engaging portion 55 via gears or pulleys (not shown), it can be applied to a sliding door such as an automatic door and the water stop plate 30 can be installed from the inside. Further, all or part of the mounting mechanism 50 may be disposed on the outer surface of the water stop plate 30.

[0092] Provided by the first invention of the present invention is a water stop structure for a building that prevents water from flooding into the indoor side from an opening formed in a wall portion of the building, including a pair of vertical frames extending in the vertical direction and a lower frame extending in the horizontal direction and connecting the pair of vertical frames, a frame body mounted on the wall portion so as to surround the opening, a water stop plate having a shape capable of covering at least the lower portion of the opening and a lateral dimension overlapping the pair of vertical frames in the inside-outside direction of the building and being capable of being placed on the lower frame, a pair of vertical seal portions disposed along the vertical direction between the pair of vertical frames and the water stop plate on the indoor side of the pair of vertical frames, a lower seal portion disposed along the horizontal direction between the lower frame and the water stop plate, a seal portion, a drive input portion disposed on the water stop plate, and a biasing mechanism that biases the water stop plate in the indoor direction and the downward direction so as to compress the pair of vertical seal portions between the water stop plate and the pair of vertical frames and compress the lower seal portion between the water stop plate and the lower frame while receiving a driving force input to the drive input portion, and a water stop plate mounting mechanism.

[0093] A second invention is that in the first invention, the drive input portion of the water stop plate mounting mechanism is disposed on the surface of the water stop plate facing the indoor side of the building.

[0094] The third invention is, in the first or second invention, wherein the biasing mechanism of the water stop plate mounting mechanism includes an engaging portion and a moving portion capable of receiving the driving force and moving the engaging portion between an engaged position and a disengaged position, wherein the engaged position is a position where the engaging portion sandwiches the vertical frame and the vertical seal portion from both sides with respect to the water stop plate in the inner and outer direction, and the disengaged position is a position where the engaging portion is separated from the vertical frame.

[0095] The fourth invention is, in the third invention, wherein the engaging portion is supported by the water stop plate so as to be rotatable about a central axis, the moving portion receives the driving force and rotates the engaging portion between the engaged position and the disengaged position, and a surface of the engaging portion facing the vertical frame is tapered and inclined from the disengaged position toward the engaged position.

[0096] The fifth invention is, in the third invention, wherein the vertical frame has a contact portion that contacts the engaging portion at the engaged position, and the contact portion can move the water stop plate downward by the driving force while preventing upward movement of the engaging portion.

[0097] The sixth invention is, in the first to fifth inventions, wherein the water stop plate mounting mechanism is rotatably supported by the water stop plate and further has an operation handle for receiving an operation for inputting a rotational driving force to the driving input portion.

[0098] The seventh invention is, in the first to sixth inventions, wherein the frame body is a lid portion supported by the vertical frame so as to be switchable between an open state and a closed state with respect to the vertical frame, the open state is a state that allows the water stop plate to be placed on the lower frame, and the closed state is a state that prevents the water stop plate from being placed on the lower frame, and further has a lock mechanism capable of locking the water stop plate so as to compress the lower seal portion in the closed state of the lid portion.

[0099] The eighth invention provides a water stop device, which includes a frame body including a pair of vertical frames extending in the vertical direction and a lower frame extending in the horizontal direction and connecting the pair of vertical frames, a water stop plate having a horizontal dimension overlapping at least the pair of vertical frames and being capable of being placed on the lower frame, a pair of vertical seal portions disposed along the vertical direction between the pair of vertical frames and the water stop plate, a lower seal portion disposed along the horizontal direction between the lower frame and the water stop plate, a seal portion, a drive input portion disposed on the water stop plate, and a biasing mechanism that biases the water stop plate to compress the pair of vertical seal portions between the water stop plate and the pair of vertical frames and compress the lower seal portion between the water stop plate and the lower frame while receiving a driving force input to the drive input portion, and a water stop plate mounting mechanism having the biasing mechanism.

Explanation of Signs

[0100] 10 Outer wall 11 Interior wall 11A Wall body 11B Window frame 12 Sash 14 Floor material 16 Shutter rail 20 Frame body 21 Vertical frame 21A Vertical frame main body portion 21B Outer extension portion 21C Water stop plate facing portion 211 Cover (cover portion) 211S Cover fulcrum portion 212 Latch guide 213 Latch (locking mechanism) 214 Spring 22 Lower frame 30 Water stop plate 40 Seal portion 41 Lower seal portion 42 Vertical seal portion 50 Mounting mechanism (water stop plate mounting mechanism) 51 Drive input gear (drive input portion) 51H Engagement hole 52, 52M Operation handle 521 Handle body 522 Engagement gear 525 Engagement protrusion 526 Rotating gear 527 Engagement gear 53 Moving part (biasing mechanism) 53A First gear 53B Second gear 55 Engagement part (biasing mechanism) 551 First end 552 Second end 61 First pin 62 Second pin 63 Third pin 64 Fourth pin (contact part) 70 Regulation part 71 Base 71H Long hole 72 Slider 721 Locking gear 722 Operating pin 722 H Opening H W Wire W

Claims

1. A water stop structure for a building that prevents water from flooding into the interior from an opening formed in a wall portion of the building, comprising: a pair of vertical frames extending in the vertical direction and a lower frame extending in the horizontal direction and connecting the pair of vertical frames; a frame body attached to the wall portion so as to surround the opening; a water stop plate having a shape capable of covering at least the lower portion of the opening and a horizontal dimension overlapping the pair of vertical frames in the inside-outside direction of the building, and being capable of being placed on the lower frame; a pair of vertical seal portions disposed along the vertical direction between the pair of vertical frames and the water stop plate on the indoor side of the pair of vertical frames; and a lower seal portion disposed along the horizontal direction between the lower frame and the water stop plate; a seal portion; a water stop plate attachment mechanism disposed on the water stop plate, having a drive input portion, and an urging mechanism that receives a driving force input to the drive input portion and urges the water stop plate in the indoor direction and the downward direction so as to compress the pair of vertical seal portions between the water stop plate and the pair of vertical frames and compress the lower seal portion between the water stop plate and the lower frame; A water stop structure for a building, comprising:

2. The water stop structure for a building according to claim 1, wherein the drive input portion of the water stop plate attachment mechanism is disposed on a surface of the water stop plate facing the interior of the building.

3. The water stop structure for a building according to claim 1 or 2, wherein the urging mechanism of the water stop plate attachment mechanism includes an engaging portion; a moving portion capable of moving the engaging portion between an engaged position and a disengaged position in response to the driving force, wherein the engaged position is a position where the engaging portion sandwiches the vertical frame and the vertical seal portion from both sides between the engaging portion and the water stop plate in the inside-outside direction, and the disengaged position is a position where the engaging portion is separated from the vertical frame; a moving portion; A water stop structure for a building, comprising:

4. The water stop structure for a building according to claim 3, wherein the engaging portion is supported by the water stop plate so as to be rotatable about a central axis; the moving portion rotates the engaging portion between the engaged position and the disengaged position in response to the driving force; a surface of the engaging portion facing the vertical frame is inclined in a tapered shape from the disengaged position toward the engaged position.

5. The water stop structure for a building according to claim 3, wherein The vertical frame is a contact portion that contacts the engaging portion at the engaging position, and has a contact portion capable of moving the water stop plate downward by the driving force while preventing upward movement of the engaging portion. A water stop structure for a building.

6. A water stop structure for a building according to claim 1, wherein the water stop plate mounting mechanism is further provided with an operation handle that is rotatably supported by the water stop plate and receives an operation for inputting a rotational driving force to the driving input portion. A water stop structure for a building.

7. A water stop structure for a building according to claim 1, wherein the frame body is a lid portion supported by the vertical frame so as to be switchable between an open state and a closed state with respect to the vertical frame. The open state is a state in which the water stop plate can be placed on the lower frame, and the closed state is a state in which the water stop plate is prevented from being placed on the lower frame. A lid portion, and a locking mechanism capable of locking the water stop plate so as to compress the lower seal portion in the closed state of the lid portion. A water stop structure for a building further comprising.

8. A frame body including a pair of vertical frames extending in the vertical direction and a lower frame extending in the horizontal direction and connecting the pair of vertical frames to each other, a water stop plate having a horizontal dimension so as to overlap at least the pair of vertical frames and capable of being placed on the lower frame, a pair of vertical seal portions disposed along the vertical direction between the pair of vertical frames and the water stop plate, and a lower seal portion disposed along the horizontal direction between the lower frame and the water stop plate. A seal portion, a water stop plate mounting mechanism disposed on the water stop plate, having a driving input portion, and an urging mechanism that receives the driving force input to the driving input portion and compresses the pair of vertical seal portions between the water stop plate and the pair of vertical frames, while urging the water stop plate so as to compress the lower seal portion between the water stop plate and the lower frame. A water stop device comprising.

Images