JP7825014B2 - Water stop device - Google Patents

Description

The present invention relates to a water stop device that prevents water from passing through an opening that has left and right sides and a bottom during heavy rain or flooding, and can be used, for example, in openings that serve as entrances and exits inside a door frame that is opened and closed by the door of a swing door device, as well as openings that serve as passageways, entrances, etc.

Patent Document 1 below shows a water stop device for preventing water from passing through an opening having left and right side surfaces and a bottom. This water stop device is composed of left and right installation frames attached to the left and right side surfaces, and a water stop panel installed between these installation frames so that it can be separated from the installation frames. The left and right installation frames are fixed to the left and right side surfaces with anchor members.

JP 2019-78086 A

Waterstop devices are used when water disasters such as heavy rain or flooding are expected. For this reason, it is desirable that the opening during normal times be large enough to allow sufficient traffic, with no installation frames on the left or right sides.

The object of the present invention is to provide a water stop device that allows the opening to have a large opening width under normal conditions, with no installation frames on the left and right sides.

The water stop device of the present invention is configured to prevent water from passing through an opening having left and right sides and a bottom, and includes left and right installation frames attached to the left and right sides, and a water stop panel installed between the installation frames so that it can be separated from the installation frames, and is characterized in that the left and right installation frames are detachable from the left and right sides.

In this way, with the water stop device of the present invention, the left and right installation frames are detachable from the left and right sides. Therefore, when a water disaster such as heavy rain or flooding is expected, the left and right installation frames can be placed on the left and right sides and a water stop panel installed between them to prevent water from passing through the opening. Furthermore, when the risk of a water disaster occurring has disappeared or the water disaster has been resolved, the water stop panels can be separated from the left and right installation frames, and then the left and right installation frames can be removed from the left and right sides, allowing the opening to return to its normal state with a large opening width when the left and right installation frames are not placed on the left and right sides.

In the water stop device according to the present invention, the left and right mounting frames can be detachably attached to the left and right sides using any type or structure. One example of such a configuration is to detachably attach the left and right mounting frames to the left and right sides using fasteners such as bolts. Another example of such a configuration is to provide a pressing means on the water stop panel for pressing the left and right mounting frames against the left and right sides. The pressing force of this pressing means presses the left and right mounting frames against the left and right sides, allowing the mounting frames to be attached to the left and right sides, and releasing the pressing force of the pressing means allows the left and right mounting frames to be detached from the left and right sides.

Furthermore, if the configuration that allows the left and right installation frames to be attached and detached to the left and right side surfaces is achieved by the latter pressing means provided on the waterstop panel, this pressing means may be common to both the left and right installation frames, i.e., it may press the left and right installation frames against the left and right side surfaces simultaneously, or it may be provided on the waterstop panel separately for each left and right installation frame.

If a pressing means is provided on the water stop panel for each of the left and right installation frames, when the left and right installation frames are pressed against the left and right sides by the pressing force of the pressing means, the water stop panel can be fixed to the left and right installation frames by the reaction force acting against the pressing force of each pressing means.Furthermore, when the pressing force is released, the reaction force also disappears, allowing the water stop panel to be separated from the left and right installation frames.

In addition, the pressing means provided on the waterstop panel for each left and right installation frame to press the left and right installation frames against the left and right sides can be of any type and structure. One example of a pressing means is a telescopic rod means that can be extended and retracted, such as a cylinder and piston rod. Another example of a pressing means is a screw-type means that includes a female threaded member arranged on the waterstop panel and a male threaded member that is screwed into the female threaded member toward the installation frame and, when rotated, moves forward to press the installation frame.

Of these, if the pressing means provided on the waterstop panel for each left and right installation frame to press the left and right installation frames against the left and right sides is a screw-type member consisting of a female thread member and a male thread member, the overall structure can be simplified and the work of pressing the left and right installation frames against the left and right sides can be easily carried out.

In addition, the pressing means provided on the water stop panel for each left and right installation frame to press the left and right installation frames against the left and right sides may be configured to include a sliding member arranged on the water stop panel so that it can slide freely toward the installation frame, and a pressure member that applies pressure to the sliding member toward the installation frame to move it forward, and the pressure applied by the pressure member causes the sliding member to move forward and press against the installation frame.

When the pressing means provided on the waterstop panel for each left and right installation frame to press the left and right installation frames against the left and right sides in this way is configured to include a slide member and a pressure member that presses the slide member toward the installation frame and moves it forward, the pressure member can be any member that can press the slide member toward the installation frame and move it forward. For example, the pressure member can be a rotating cam member that has a common rotation axis with a rotation operating member that is rotated to rotate the rotation cam member. Furthermore, by locating the rotation axis at the center of the rotation operating member eccentrically from the center of the rotation cam member, the pressure of the rotation cam member rotated around the rotation axis will cause the slide member to move forward and press against the installation frame.

Furthermore, as described above, if the pressing means provided on the waterstop panel for each left and right installation frame to press the left and right installation frames against the left and right side surfaces is configured to include a sliding member and a pressure member for pressing the sliding member toward the installation frame and moving it forward, the pressure member may be a linear movement operating member that has an inclined portion inclined relative to the sliding direction of the sliding member and is operated to move linearly in a direction that forms an angle with both the sliding direction of the sliding member and the inclination direction of the inclined portion, and when this linear movement operating member is operated to move linearly, the sliding member is moved forward by the pressing force from the inclined portion and presses the installation frame.

If a slide member and a linear movement operating member are provided on the waterstop panel for each of the left and right installation frames, and the two linear movement operating members are positioned separately on the left and right of the waterstop panel, these linear movement operating members can be connected by a connecting member, and by operating this connecting member, the two linear movement operating members can be moved linearly simultaneously.

As a result, even if the two linear movement operating members are positioned separately on the left and right sides of the water stop panel, by operating the connecting member with one hand, the two linear movement operating members can be moved linearly at the same time, applying pressure to the respective slide members provided on the water stop panel for each left and right installation frame, allowing these slide members to simultaneously press the left and right installation frames against the left and right side surfaces.

Furthermore, as described above, if the pressing means provided on the waterstop panel for each left and right installation frame to press the left and right installation frames against the left and right side surfaces is configured to include a sliding member and a pressure member for pressing this sliding member toward the installation frame and moving it forward, and the pressure member is a linear movement operating member that has an inclined portion inclined relative to the sliding direction of the sliding member and is operated to move linearly in a direction that forms an angle with both the sliding direction of the sliding member and the inclination direction of the inclined portion, and if the linear movement operating member is operated to move linearly, the sliding member advances due to the pressing force from the inclined portion and presses the installation frame, the linear movement operating direction of the linear movement operating member for moving the sliding member forward may be any direction.

If the linear movement operating member for advancing the slide member is moved downward, a lower seal member can be attached to the underside of the waterstop panel to create a waterproof seal between the waterstop panel and the bottom surface of the opening. When the waterstop panel is lowered by linearly moving the linear movement operating member downward, the lower seal member is compressed between the waterstop panel and the bottom surface of the opening, thereby creating a waterproof seal between the waterstop panel and the bottom surface of the opening with the lower seal member.

This allows the linear movement operating member to simultaneously apply pressure to the slide member attached to the water stop panel to press the left and right installation frames against the left and right side surfaces, and compress the lower seal member between the water stop panel and the bottom surface of the opening to create a water-repellent function, all by moving the linear movement operating member linearly downward.

Furthermore, in the water stop device according to the present invention described above, when a lower sealing member is attached to the underside of the water stop panel to create a waterproof seal between the water stop panel and the bottom of the opening, a pressing means for pressing down the water stop panel can be provided on the left and right installation frames, and when the pressing means press down the water stop panel, the lower sealing member is compressed between the water stop panel and the bottom of the opening, thereby creating a waterproof seal between the water stop panel and the bottom of the opening with the lower sealing member.

When the water stop device according to the present invention is equipped with such a push-down means, the push-down means may have a large dimension in the left-right direction and be common to both the left and right installation frames, or a push-down means may be provided for each of the left and right installation frames.

Of these, if the push-down means is provided on each of the left and right installation frames as in the latter case, the push-down means can be made smaller in size in the left-right direction.

Such pushing-down means can be configured in any form and structure. One example of a pushing-down means includes a wedge receiving member provided on the left and right installation frames, and a wedge that is inserted between the wedge receiving member and the waterstop panel to push down the waterstop panel. Another example of a pushing-down means includes a female screw member arranged on the installation frame, and a male screw member that is screwed downward into the female screw member toward the waterstop panel and is rotated to move forward and push down the waterstop panel.

If the pressing means is configured to include a female threaded member and a male threaded member, as in the latter case, the lower seal member can be compressed between the waterstop panel and the bottom surface of the opening, making it easy to perform the work of waterproofing the gap between the waterstop panel and the bottom surface of the opening using this lower seal member while checking the amount of compression of the lower seal member.

Furthermore, in the water stop device according to the present invention described above, left and right side seal members may be arranged on at least one of the left and right installation frames and the water stop panel, which are compressed between the left and right installation frames and the water stop panel when the water stop panel is moved in the direction of penetration of the opening.

Accordingly, when the water stop panel is moved in the direction of the opening to install it between the left and right installation frames, the left and right side seal members are compressed between the left and right installation frames and the water stop panel, creating a waterproof seal between the left and right installation frames and the water stop panel. This means that the work to create this waterproof seal can be carried out as the work to install the water stop panel between the left and right installation frames.

The water stop device according to the present invention, as described above, can be used in any opening into which water may enter during heavy rain, floods, etc. This opening may be, for example, an opening that serves as an entrance inside a door frame that is opened and closed by a swing door device, or an opening that serves as a passageway, or any other opening that serves as an entrance or exit. The entrance or exit may also be an entrance or exit that is opened and closed by a sliding door device or folding door device, or an above-ground entrance or exit leading to an underground mall, subway, etc.

This invention has the advantage that the opening under normal conditions can be made to have a large opening width with no installation frames on the left or right side.

FIG. 1 is a front view of a front door, which is a swing door device to which a water stop device according to one embodiment of the present invention is applied, as viewed from the outside of the room. FIG. 2 is a front view of the entrance door of FIG. 1 when the door is open, seen from the outside of the room, showing the state when the water stop device is not set in the door frame of the entrance door. FIG. 3 is a front view of the entrance door of FIG. 1 when the door is open, as seen from the outside of the room, showing the state when the water stop device is set in the door frame of the entrance door. FIG. 4 is a view of the waterproofing device in FIG. 3 as seen from the indoor side. FIG. 5 is a cross-sectional view taken along line S5-S5 in FIG. FIG. 6 shows the installation frame, where (A) is a plan view, (B) is a front view seen from the outside of the room, and (C) is a right side view. FIG. 7 is a front view showing only the water stopping panel as seen from the outside of the room. FIG. 8 is a view showing only the water stopping panel, as viewed from the indoor side. FIG. 9 is a left side view of the waterstop panel. FIG. 10 is a front view of the state when the left and right installation frames are placed on the door frame of the entrance door, as seen from the outside of the room. FIG. 11 is a view similar to FIG. 9, showing a state during the installation work of the water stop panel between the left and right installation frames. FIG. 12 is a view similar to FIG. 9, showing the state when the installation work of the water stop panel between the left and right installation frames is completed. FIG. 13 is a view similar to FIG. 5, illustrating that the waterproofing device according to this embodiment can be used even when the front door is closed. FIG. 14 is a view similar to FIG. 3, showing another embodiment of the pressing means provided on the waterstop panel. FIG. 15 is a view similar to FIG. 3, showing yet another embodiment of the pressing means provided on the waterstop panel. FIG. 16 is a view similar to FIG. 3, showing an embodiment in which two linear movement operating members, one on the left and one on the right, for the pressing means provided on the water stopping panel shown in FIG. 15 are connected by a connecting member.

Embodiments of the present invention will now be described with reference to the drawings. Figure 1 shows the entirety of a swing door device to which a water stop device according to one embodiment of the present invention is applied. This swing door device is a front door in which door 1 is attached to door frame 2 by hinges 3 so that it can be opened and closed freely, and Figure 2 shows the state of door frame 2 when door 1 is open. Doorway 4 inside door frame 2, which is located at the front door and forms the boundary between the inside and outside of the room, is the opening in this embodiment that is opened and closed by door 1.

As shown in Figures 1 and 2, the door frame 2 is a four-sided frame consisting of left and right side frame members 5, 6 and upper and lower top and bottom frame members 7 and 8. The left and right side frame members 5, 6 form the left and right side surfaces of the doorway 4, the bottom frame member 8, which serves as a door-sill member, forms the bottom surface of the doorway 4, and the top frame member 7 forms the top surface of the doorway 4. As shown in Figure 2, the left and right side frame members 5, 6, the top frame member 7, and the bottom frame member 8 are provided with doorstops 5A, 6A, 7A, and 8A that the door 1 abuts against when closed to determine the fully closed position of the door 1. Furthermore, airtight members 9, 10, 11, and 12 are arranged on these doorstops 5A, 6A, 7A, and 8A to ensure airtightness between the door 1 and the door frame 2 when closed.

Of the airtight members 9, 10, 11, and 12, the airtight members 9 and 10 arranged on the doorstop portions 5A and 6A of the left and right side frame members 5 and 6 are also shown in Figure 5, which will be described later.

Figure 3 shows a front view, as seen from outside the room, of the water stop device 20 of this embodiment set in the lower portion of the entrance 4 with the door 1 open, blocking this portion. This water stop device 20 is composed of two mounting frames 21, one on each side, arranged on the left and right side frame members 5, 6 of the door frame 2, and a water stop panel 22 installed between these mounting frames 21. Figure 4 shows the water stop device 20 as seen from inside the room, and Figure 5 is a cross-sectional view taken along line S5-S5 in Figure 3. As shown in Figures 3 to 5, the two mounting frames 21 are erected on the upper surface of the doorstop portion 8A of the lower frame member 8, which forms the bottom of the entrance 4, and are positioned along the side frame members 5, 6, which form the left and right sides of the entrance 4. These paired mounting frames 21 are configured to have the same or approximately the same height as the water stop panels 22, with a symmetrical shape and structure.

Figure 6 shows the left-hand installation frame 21 in Figure 3, of the two installation frames 21 configured with a symmetrical shape and structure. Figure 6(A) is a plan view, Figure 6(B) is a front view viewed from the outside of the room, and Figure 6(C) is a right-hand side view. Of the components that make up the installation frame 21, the main body 25, which is a bent piece of sheet metal, has the same or approximately the same height as the water stop panel 22. This main body 25 is angled, consisting of a side portion 25A whose width direction is the same as the penetration direction of the entrance/exit 4, and an extension portion 25B that bends at a right angle from the outside end of this side portion 25A and extends outward in the width direction of the entrance/exit 4, which is in the left-right direction.

Two upper and lower pin members 26, 27 are attached to the side surface 25A of the main body 25 at the same position in the direction of penetration of the entranceway 4, protruding inward in the width direction of the entranceway 4. Furthermore, a facing member 28 is attached to the side surface 25A at a position on the indoor side of the upper and lower pin members 26 and 27, protruding inward in the width direction of the entranceway 4 from the side surface 25A. This facing member 28 faces the water stop panel 22 on the indoor side in the direction of penetration of the entranceway 4, as will be understood from the description below. This facing member 28 has the same height as the main body 25. An outer sealing member 29 is fixed to the outer surface of the side surface 25A on the outside in the width direction of the entranceway 4, spanning the entire vertical length of the main body 25. A bottom sealing member 30 is fixed to the underside of the main body 25 and the facing member 28, i.e., to the underside of the entire installation frame 21.

A push-down device 31 for pushing the water stop panel 22 downward is located on the top surface of the facing member 28, which is rectangular in plan view. This push-down device 31, provided for each of the two left and right installation frames 21, is a screw-type device whose main components are a male screw member 32 and a support member 33 that supports the male screw member 32. The support member 33 has a generally U-shaped overall shape and is composed of a lower portion 33A fixed to the top surface of the facing member 28, a rising portion 33B rising from the indoor-side end of the lower portion 33A, and an upper portion 33C extending from the top end of the rising portion 33B to the outdoor side parallel to the lower portion 33A. The upper portion 33C, which extends further to the outdoor side than the lower portion 33A, has a female screw portion 34 at the tip into which the downward-facing male screw member 32 is threaded. Therefore, the support member 33 is a female screw member into which the male screw member 32 is threaded and supported.

A knob 32A is fixed to the upper end of the male threaded member 32 for rotating the male threaded member 32, and an abutment member 32B is attached to the lower end of the male threaded member 32 so as to be rotatable relative to the male threaded member 32. The abutment member 32B abuts against the upper surface of the water stop panel 22 when the male threaded member 32 is rotated by the knob 32A and moved downward, i.e., toward the water stop panel 22.

Figures 7 and 8 only show the water stop panel 22, with Figure 7 being a front view of the water stop panel 22 as viewed from the outside of the room, and Figure 8 being a rear view of the water stop panel 22 as viewed from the inside of the room. As shown in Figure 7, pressing means 35 are arranged on the outside surface 22A of the water stop panel 22 near both left and right ends of the water stop panel 22 to press each mounting frame 21 against the left and right side frame members 5, 6 of the door frame 2 described above. Multiple pressing means 35 are provided in the vertical direction (two in this embodiment), and the pressing means 35 provided near both left and right ends of the water stop panel 22 are configured to have a symmetrical shape and structure.

Like the push-down means 31, each pressing means 35 is a screw-type member whose main components are a male screw member 36 and a support member 37 that supports this male screw member 36. The support member 37 is a U-shaped member consisting of a base 37A fixed to the exterior surface 22A of the waterstop panel 22 and two extension portions 37B extending outward from both left and right ends of the base 37A. Each extension portion 37B is formed with a female screw portion 38 (see also Figure 5), and the male screw member 36 is threaded into these female screw portions 38 in a horizontal orientation that is outside the width of the doorway 4, which is the side on which the installation frame 21 is located. Therefore, the support member 37 is a female screw member into which the male screw member 36 is threaded and supported.

A knob 36A for rotating the male screw member 36 is fixed to the inner end of the male screw member 36 in the width direction of the entrance/exit 4. At the outer end of the male screw member 32 in the width direction of the entrance/exit 4, an abutment member 36B is attached rotatably relative to the male screw member 36. When the male screw member 36 is rotated by the knob 36A and moved outward in the width direction of the entrance/exit 4, i.e., toward the installation frame 21, an abutment member 36B abuts against the main body 25 of the installation frame 21.

As shown in Figure 8, two side seal members 40, each having a vertical length, are fixed to the interior-facing surface 22B of the waterstop panel 22 at or near both left and right ends of the waterstop panel 22. These side seal members 40 extend from the top to the bottom of the waterstop panel 22. A lower seal member 41, also having a horizontal length, is fixed to the underside of the waterstop panel 22. Both longitudinal ends of this lower seal member 41 are connected to the lower ends of the two side seal members 40 by connecting seal members 42. As a result, the two side seal members 40 and the lower seal member 41 form part of a continuous strip seal.

Figure 9 is a left side view of the waterstop panel 22 in Figure 7. As can be seen from Figure 9, as well as Figures 7 and 8, two guide means 44, 45 are arranged vertically and separately on both the left and right sides of the waterstop panel 22 to guide the pin members 26, 27 that are provided on the installation frame 21, one above the other. These guide means 44, 45 have the same shape and structure and are provided on both the left and right sides of the waterstop panel 22.

9, of the two guide means 44, 45, the upper guide means 44 is composed of an upper portion 44A and a lower portion 44B that are connected by a connecting portion 44C and separated vertically. The upper portion 44A serves as a guide portion that guides the lifting member 46 so that it can be raised and lowered freely. This lifting member 46 is constantly elastically biased downward by an elastic member 47, such as a coil spring, that is stretched between the upper portion 44A and the lifting member 46. Furthermore, the lifting member 46 can be pulled upward against the elastic force of the elastic member 47 by operating an operating portion 46A formed by bending the upper end. The lower portion of the lifting member 46 has a downward-facing recess 46B that is large enough to insert the upper pin member 26, one of the pin members 26, 27 of the installation frame 21. The downward protrusion 46C on the indoor side of the lower part of the lifting member 46 that forms this recess 46B has an inclined portion 46D that slopes diagonally downward from the indoor side to the outdoor side. Additionally, the upper surface of the lower part 44B of the upper guide means 44 has an inclined portion 48 that slopes diagonally upward from the indoor side to the outdoor side.

Of the two guide means 44, 45, the lower guide means 45 has an opening 50 that opens to the indoor side. This opening 50 opens to the indoor side via a passage 51 through which the lower pin member 27 of the pin members 26, 27 of the installation frame 21 can pass, and the upper and lower portions 51A, 51B of the passage 51 are parallel to each other and slope diagonally upward from the indoor side to the outdoor side.

The width of the water-stopping panel 22, which has two upper and lower guide means 44, 45 on each of its left and right sides, including the width of the guide means 44, 45, is slightly smaller than the width between the side portions 25A of the main body 25 of the two left and right mounting frames 21 when the two left and right mounting frames 21 are positioned along the side frame members 5, 6 of the door frame 2. This makes it possible to insert and position the water-stopping panel 22, which has two upper and lower guide means 44, 45 on each of its left and right sides, between the side portions 25A of the main body 25 of the two left and right mounting frames 21.

To install the watertight device 20 according to this embodiment in the lower portion of the aforementioned doorway 4, which forms the inner opening of the door frame 2, a worker first brings two installation frames 21 (one on each side) from the outside of the room into the doorway 4, as can be seen in Figure 10, and then installs these installation frames 21 on the upper surface of the doorstop portion 8A of the bottom frame member 8 of the door frame 2, and positions them along the side frame members 5 and 6. As a result, as shown in Figure 5, the outer seal member 29 fixed to the side portion 25A of the main body 25 of the installation frame 21 contacts the doorway 4-side side surfaces of the doorstop portions 5A and 6A of the side frame members 5 and 6 that form the left and right sides of the doorway 4, and the lower seal member 30 fixed to the lower surface of the installation frame 21 contacts the upper surface of the doorstop portion 8A of the bottom frame member 8, as shown in Figure 10.

Next, the worker installs the water stop panel 22 by inserting it between the side surfaces 25A of the main bodies 25 of the two left and right mounting frames 21. The first step in this process is to lift the water stop panel 22 higher than the bottom frame member 8 of the door frame 2 and bring the water stop panel 22 closer to the mounting frame 21. Then, of the upper and lower pin members 26 and 27 provided on the two left and right mounting frames 21, the upper pin member 26 is placed on the inclined portion 48 formed on the lower portion 44B of the upper guide means 44 provided on both the left and right sides of the water stop panel 22, as shown by the upper pin member 26' in Figure 11, and the lower pin member 27 is placed on the lower portion 51B of the passage 51 of the lower guide means 45 provided on both the left and right sides of the water stop panel 22, as shown by the lower pin member 27' in Figure 11, as shown by the double-dashed line.

After this, the worker moves the waterstop panel 22 diagonally downward from the outside to the inside of the room, while guiding the two upper and lower pin members 26, 27 along the inclined portion 48 and lower portion 51B, which are each inclined diagonally upward from the inside to the outside of the room. As a result, the upper pin member 26 and the lower pin member 27 reach the upper positions of the inclined portion 48 and lower portion 51B, respectively, as shown by the two-dot chain lines in Figure 11 as upper pin member 26" and lower pin member 27".

Furthermore, when an operator moves the water-stopping panel 22 diagonally downward from the outside to the inside of the room, the upper pin member 26 abuts against the inclined portion 46D of the downward protrusion 46C of the lifting member 46 of the upper guide means 44. Because this inclined portion 46D is inclined diagonally downward from the inside to the outside of the room, the lifting member 46 slides upward against the elastic force of the elastic member 47 due to the pressing force from the pin member 26. As a result, the upper pin member 26 enters the interior of the downward-opening recess 46B of the lifting member 46, as shown in Figure 12, and the lifting member 46 slides downward due to the elastic force of the elastic member 47. When the lifting member 46 slides downward due to the elastic force of the elastic member 47, the upper pin member 26 becomes inserted into the recess 46B of the lifting member 46, which is only able to slide up and down, and the water stop panel 22 becomes unable to move in the direction of the doorway 4, which is the opening on the inside of the door frame 2. At this time, the lower pin member 27 reaches the inside of the opening 50, which opens to the interior of the room, via the passage 51 in the lower guide means 45, as shown in Figure 12.

The work performed by the worker on the water stop panel 22 as described above involves moving the water stop panel 22 from the outside to the inside of the room in the direction of penetration of the entrance/exit 4 inside the door frame 2. As the water stop panel 22 is moved from the outside to the inside of the room, it is also moved diagonally downward. As a result, the lower seal member 41 fixed to the underside of the water stop panel 22 comes into contact with the upper surface of the doorstop portion 8A of the lower frame member 8, and the two left and right side seal members 40 provided on the indoor surface 22B of the water stop panel 22 are compressed by the indoor surface 22B of the water stop panel 22 and the facing member 28 that faces the indoor surface 22B of the water stop panel 22 in the direction of penetration of the entrance/exit 4, among the components that make up each of the two left and right installation frames 21.

As a result, by installing the water-stopping panel 22 between the two left and right installation frames 21, the two left and right side seal members 40 can be compressed by the interior-facing surface 22B of the water-stopping panel 22 and the facing member 28, and these side seal members 40 create a waterproof seal between the two left and right installation frames 21 and the water-stopping panel 22.

In addition, the lower guide means 45 provided on both the left and right sides of the waterstop panel 22 may also be provided with a lifting member similar to the lifting member 46 provided on the upper guide means 44 described above. This allows the lower pin member 27 to be inserted into the downward-facing recess of the lifting member, which is provided on the lower guide means 45 so that it can slide only up and down and is constantly elastically biased downward by an elastic member such as a spring. This makes it possible to prevent the lower part of the waterstop panel 22 from moving in the direction of the entrance/exit 4.

Then, the worker uses the push-down means 31 provided on each of the two left and right mounting frames 21 to press down the waterstop panel 22. This is done by rotating the knob 32A of the push-down means 31 (see Figure 6) provided on each mounting frame 21. This rotates the male threaded member 32 threaded toward the waterstop panel 22 into the female threaded portion 34 of the support member 33 (the aforementioned female threaded member). The abutment member 32B provided at the lower end of the male threaded member 32 abuts against the upper surface of the waterstop panel 22. Further rotation of the knob 32A presses down the waterstop panel 22 due to the downward pressure from the male threaded members 32 of the push-down means 31 provided on each of the two left and right mounting frames 21. As a result, the lower seal member 41 fixed to the underside of the waterstop panel 22 is compressed between the underside of the waterstop panel 22 and the upper surface of the door stop portion 8A of the lower frame member 8 of the door frame 2.

As a result, the lifting member 46 of the upper guide means 44 is able to slide upward against the elastic force of the elastic member 47, and even if the vertical dimension of the opening 50 of the lower guide means 45 is larger than the diameter of the lower pin member 27, the lower seal member 41 can create a waterproof seal between the waterstop panel 22 and the lower frame member 8.

Next, the worker uses multiple pressing means 35, located above and below, near both left and right ends of the water-stopping panel 22 on the outdoor surface 22A of the water-stopping panel 22, to press the two left and right installation frames 21 against the left and right side frame members 5, 6 of the door frame 2. As can be seen in Figure 5, this operation is performed by rotating the knob 36A of each pressing means 35. This rotates the male screw 36, which is threaded laterally toward the installation frame 21 into the female screw portion 38 of the support member 37, causing the abutment member 36B at the tip of the male screw 36 to abut against the side surface 25A of the main body 25 of the installation frame 21. Further rotation of the knob 36A causes the lateral pressing force from the male screw members 36 of each pressing means 35 located near both lateral ends of the waterstop panel 22 to press the side surface 25A of the main body 25 of each of the two left and right installation frames 21 outward in the width direction of the doorway 4. As a result, the outer surface seal member 29 on the outer surface of the side surface 25A of the main body 25 makes strong contact with the inside side surfaces of the doorstop portions 5A, 6A of the left and right side frame members 5, 6 of the door frame 2.

As a result, the outer seal members 29 create a waterproof seal between the two left and right mounting frames 21 and the left and right side frame members 5, 6, and the two left and right mounting frames 21 are attached to the left and right side frame members 5, 6 of the door frame 2 by the pressing force of the pressing means 35. At this time, as mentioned above, the bottom seal member 30 fixed to the underside of the mounting frame 21 is in contact with the upper surface of the door stop portion 8A of the bottom frame member 8 of the door frame 2, so the bottom seal member 30 also creates a waterproof seal between the mounting frames 21 and the bottom frame member 8.

In addition, before using the pressing means 31 to press down the water stop panel 22, the two left and right installation frames 21 can be pressed against the left and right side frame members 5, 6 using the respective pressing means 35, and then the water stop panel 22 can be pressed down using the pressing means 31.This allows the installation frames 21 connected to the water stop panel 22 by the pressing means 35 to be pressed down together with the water stop panel 22 by the pressing means 31, thereby ensuring a more reliable waterproof seal between the installation frames 21 and the lower frame member 8 using the underside sealing member 30.

As described above, when the pressing means 35 provided near both left and right ends of the waterstop panel 22 are used to press the two left and right mounting frames 21 against the left and right side frame members 5, 6 of the door frame 2, reaction forces acting as a reaction to the pressing forces of each pressing means 35 act on the waterstop panel 22. These reaction forces act on the waterstop panel 22 as loads in opposite directions toward the inside of the width of the doorway 4 at the pressing means 35 provided near both left and right ends of the waterstop panel 22. Therefore, when the pressing means 35 press the two left and right mounting frames 21 against the left and right side frame members 5, 6 of the door frame 2, the waterstop panel 22 can be fixed to the two left and right mounting frames 21 by the above loads, which act in opposite directions.

For this reason, by providing separate pressing means 35 on the water-stopping panel 22 for each of the two left and right mounting frames 21, it is possible to both press the two left and right mounting frames 21 against the left and right side frame members 5, 6 of the door frame 2 and to secure the water-stopping panel 22 to the two left and right mounting frames 21.

As described above, the water stop device 20 according to this embodiment is installed below the entrance 4 inside the door frame 2, as shown in Figure 3. Even if water reaches the exterior side of the entrance hall during heavy rain or flooding, the two installation frames 21 on the left and right and the water stop panel 22 can prevent water from passing through the lower part of the entrance 4 and flowing inside the hall. Furthermore, as shown in Figure 5, the door 1, which can be freely opened and closed using hinges 3, can be left open relative to the door frame 2, allowing people to step over the water stop panel 22 and pass through the entrance hall from the exterior side to the interior side, or vice versa.

Furthermore, as shown in FIG. 13, the water stop device 20 according to this embodiment can be used even when the door 1 is closed relative to the door frame 2. Therefore, when the door 1 is closed, the water stop panel 22 can be prevented from being damaged by floating objects such as driftwood or other objects that are carried along with the water during heavy rain or floods.

When the risk of a water disaster such as heavy rain or flooding has passed, or when the water disaster has been resolved, the worker reverses the knob 36A of each pressing means 35, thereby releasing the pressing force acting from the male screw members 36 of these pressing means 35 on the side surfaces 25A of the main bodies 25 of the two left and right installation frames 21. This also eliminates the reaction load acting on the waterstop panel 22 as a reaction to the pressing force of the pressing means 35. The worker then reverses the knob 32A of the press-down means 31 provided on each installation frame 21, thereby moving the abutment members 32B provided on the lower ends of the male screw members 32 of these press-down means 31 upward from the top surface of the waterstop panel 22, thereby releasing the pressing force of the press-down means 31 on the waterstop panel 22.

The worker then lifts the lifting member 46 attached to the upper guide means 44 of the push-down means 31 by lifting the operating part 46A attached to the upper end of the lifting member 46, thereby lifting it against the elastic force of the elastic member 47 and moving the waterstop panel 22 diagonally upward from the inside to the outside of the room. This causes the two pin members 26, 27 attached to the top and bottom of each mounting frame 21 to separate from the upper guide means 44 and lower guide means 45 attached to the left and right sides of the waterstop panel 22, allowing the waterstop panel 22 to be separated from the two mounting frames 21. Furthermore, the pressure from the pressing means 35 attached to the waterstop panel 22 has been released, allowing the two mounting frames 21 to be removed from the left and right side frame members 5, 6 of the door frame 2.

As can be seen from the above explanation, the two left and right installation frames 21 of the water stop device 20 according to this embodiment can be attached to the left and right side frame members 5, 6 of the door frame 2 by the pressing force of the pressing means 35 provided on the water stop panel 22, and can be removed from the side frame members 5, 6 by releasing this pressing force, so the two left and right installation frames 21 can be attached and detached from these side frame members 5, 6. Therefore, under normal circumstances, the doorway 4 can be set in a state where the installation frames 21 are not positioned on the side frame members 5, 6, thereby ensuring a large opening width for the doorway 4.

Figure 14 shows a pressing means 55 according to another embodiment. The pressing means 55 according to this embodiment is provided on the water stop panel 22 for each installation frame 21. The pressing means 55 includes a slide member 57, which is guided by multiple guide members 56 and arranged on the exterior surface 22A of the water stop panel 22, so as to slide freely in the left-right direction (i.e., the width direction of the entrance/exit 4); an elastic member 58, such as a coil spring, that constantly elastically biases the slide member 57 inward in the width direction of the entrance/exit 4; a circular knob member 59, which is integrated with a centrally located pivot shaft 59A and is rotatable about the pivot shaft 59A; and a circular pivot cam member 60, which is arranged spaced apart from the knob member 59 in the axial direction of the pivot shaft 59A. The axial direction of the pivot shaft 59A is the thickness direction of the water stop panel 22, i.e., the direction in which the entrance/exit 4 penetrates.

The rotating cam member 60 is also integrated with the pivot axis 59A, allowing it to rotate freely around the pivot axis 59A. However, the pivot axis 59A is not located at the center of the circular rotating cam member 60; rather, it is located on the rotating cam member 60 at a position eccentric to the center. In other words, the circular knob member 59, which serves as the rotation operating member in this embodiment, and the rotating cam member 60, which is located away from the knob member 59 in the axial direction of the pivot axis 59A, share the pivot axis 59A, but the rotating cam member 60 is eccentric relative to the knob member 59. The outer peripheral surface of this rotating cam member 60 abuts at the inner end, in the width direction of the doorway 4, of the slide member 57, which is constantly biased inward in the width direction of the doorway 4 by the elastic force of the elastic member 58.

In this embodiment, when the inner end of the slide member 57 in the width direction of the doorway 4 abuts against a portion of the outer circumferential surface of the rotating cam member 60 that is close to the pivot center axis 59A, the outer end of the slide member 57 in the width direction of the doorway 4 is separated from the installation frame 21. Furthermore, by rotating the knob member 59 of each pressing means 55, the respective rotating cam member 60 is rotated, causing the inner end of the slide member 57 in the width direction of the doorway 4 to abut against a portion of the outer circumferential surface of the rotating cam member 60 that is far from the pivot center axis 59A, and sliding the slide member 57 outward in the width direction of the doorway 4 against the elastic force of the elastic member 58, the outer end of each slide member 57 in the width direction of the doorway 4 presses against the installation frame 21, and each installation frame 21 is pressed against the left and right side frame members 5, 6 of the door frame 2. Furthermore, when each knob member 59 is rotated in the reverse direction, the elastic force of the elastic member 58 causes the slide member 57 to slide inward in the width direction of the doorway 4, thereby releasing the pressure exerted by the slide member 57 on the installation frame 21.

The rotating cam member 60 in the pressing means 55 of this embodiment also serves as a pressure member for pressing the slide member 57 toward the installation frame 21. To press the slide member 57 toward the installation frame 21 using the rotating cam member 60, the knob member 59, which serves as a rotation operating member, is rotated approximately half a turn around the rotation center axis 59A. Therefore, the pressing means 55 can easily press each installation frame 21 against the left and right side frame members 5, 6 of the door frame 2 in a short amount of time.

Figure 15 shows a pressing means 65 according to another embodiment. The pressing means 65 according to this embodiment is provided on the water stop panel 22 for each installation frame 21. The pressing means 65 includes a slide member 67, which is guided by multiple guide members 66 on the exterior surface 22A of the water stop panel 22 and is slidable in the left-right direction (width of the entrance/exit 4); an elastic member 68, such as a coil spring, that constantly elastically biases the slide member 67 inward in the width direction of the entrance/exit 4; and a push-down member 70, which is guided by multiple guide members 69 and is movable vertically. Each push-down member 70 is operated for linear vertical movement by an operating member 70A provided at the upper end of the push-down member 70, and therefore serves as the linear movement operating member for the pressing means 65 of this embodiment.

The inner end face of the slide member 67 in the width direction of the doorway 4 forms an inclined portion 67A that slopes downward inward in the width direction of the doorway 4. The side of the push-down member 70 facing the slide member 67 also forms an inclined portion 70B that slopes downward inward in the width direction of the doorway 4. These inclined portions 67A and 70B are inclined relative to the left-right direction, which is the sliding direction of the slide member 67. The push-down members 70 are common to all slide members 67, with multiple push-down members 70 arranged above and below each other on the exterior surface 22A of the waterstop panel 22. Therefore, each push-down member 70 has the same number of inclined portions 70B as there are slide members 67.

The vertical direction, which is the linear movement direction of the push-down member 70, is angled with respect to both the horizontal direction, which is the sliding direction of the slide member 67, and the inclination direction of the inclined portion 67A of the slide member 67 and the inclined portion 70B of the push-down member 70.

In this embodiment, the operating unit 70A is operated to raise each push-down member 70 above the state shown in FIG. 15 , so that when the inclined portion 67A of each slide member 67 abuts the lower portion of the inclined portion 70B of the push-down member 70 due to the elastic force of the elastic member 68, the outer end of each slide member 67 in the width direction of the doorway 4 is separated from the installation frame 21. Furthermore, when the operating unit 70A is operated to lower each push-down member 70 to the state shown in FIG. 15 , so that the inclined portion 67A of each slide member 67 abuts the upper portion of the inclined portion 70B of the push-down member 70 that is higher than the lower portion, each slide member 67 slides outward in the width direction of the doorway 4 against the elastic force of the elastic member 68, so that the outer end of each slide member 67 in the width direction of the doorway 4 presses against the installation frame 21, and the two left and right installation frames 21 are pressed against the left and right side frame members 5, 6 of the door frame 2. Furthermore, when each push-down member 70 is raised by operating the operating unit 70A, the elastic force of the elastic member 68 causes each slide member 67 to slide inward in the width direction of the doorway 4, and the pressure applied by the slide member 67 to the installation frame 21 is released.

The push-down member 70 of the pressing means 65 in this embodiment also serves as a pressure member for pressing the slide member 67 toward the installation frame 21. Simply by moving this push-down member 70 linearly downward, the slide member 67 can be pressed toward the installation frame 21. Therefore, the pressing means 65 can easily press each installation frame 21 against the left and right side frame members 5, 6 of the door frame 2 in a shorter time.

In addition, each push-down member 70 in the pressing means 65 of this embodiment is provided with the same number of inclined portions 70B as the number of slide members 67 arranged vertically on the exterior surface 22A of the water stop panel 22, making the inclined portions 70B common to all of the slide members 67. Therefore, by pressing down on the push-down member 70, all of the slide members 67 can be simultaneously pressed toward the installation frame 21.

Furthermore, in this embodiment, when the push-down member 70 of the pressing means 65 is pressed down, each slide member 67 slides outward in the width direction of the doorway 4 against the elastic force of the elastic member 68. Further pressing down on the push-down member 70 generates a large downward frictional force between the push-down member 70 and the guide member 69. This large frictional force, which is greater than the frictional force between the slide member 67 and the installation frame 21, allows the waterstop panel 22 to descend together with the slide member 67. When the push-down operation is then released, the large frictional force between the push-down member 70 and the guide member 69 causes the waterstop panel 22 to maintain its lowered position together with the slide member 67.

Therefore, in this embodiment, even if the push-down means 31 provided on the installation frame 21 of the previous embodiments is omitted, by strongly pressing down on the push-down member 70, the lower seal member 41 fixed to the underside of the waterstop panel 22 can be compressed between the underside of the waterstop panel 22 and the bottom frame member 8 of the door frame 2, thereby creating a waterproof seal between the underside of the waterstop panel 22 and the bottom frame member 8.

Furthermore, when the risk of a water disaster such as heavy rain or flooding has disappeared, or when the water disaster has been resolved, the operator can raise the push-down member 70 by applying a pushing-up force to the operating unit 70A that is greater than the frictional force between the push-down member 70 and the guide member 69, thereby returning the pressing means 65 of this embodiment to its original state.

In the embodiment shown in Figure 16, the two push-down members 70 of the two pressing means 65 provided on the waterstop panel 22 for each of the two left and right installation frames 21 are connected at their upper ends by a connecting member 71. In other words, in the embodiment shown in Figure 16, the two push-down members 70 arranged separately on the left and right sides of the exterior surface 22A of the waterstop panel 22 are connected at their upper ends by a connecting member 71.

In this embodiment, when the connecting member 71 is pressed down with one hand, the two push-down members 70, which are positioned on the left and right, can be pressed down simultaneously. As a result, all of the slide members 67 positioned on the exterior surface 22A of the water stop panel 22 can be slid outward in the width direction of the doorway 4, which is the installation frame 21 side, thereby simultaneously pressing down on the two left and right installation frames 21. Furthermore, by pressing up the connecting member 71 with one hand, the two push-down members 70, which are positioned on the left and right, can be simultaneously raised, and all of the slide members 67 can be slid inward in the width direction of the doorway 4, simultaneously releasing the pressure on the two left and right installation frames 21 by these slide members 67.

As such, with the embodiment shown in Figure 16, the operator can use one hand to press the two left and right installation frames 21 with all of the slide members 67, and to release the pressing forces from all of the slide members 67 acting on the two left and right installation frames 21, making these operations even easier and faster.

In the embodiment shown in Figures 14 to 16, the elastic members 58, 68 that constantly elastically bias the slide members 57, 67 inward in the width direction of the doorway 4 are bridged between the slide members 57, 67 and the guide members 56, 66. However, these elastic members 58, 68 may also be bridged between the slide members 57, 67 and the waterstop panel 22 on the back side of the slide members 57, 67.

In addition, in the embodiment of Figures 15 and 16, the push-down means 31 shown in Figures 3 and 5, etc. is omitted, but push-down means 31 may be provided on the two left and right installation frames 21 in the embodiment of Figures 15 and 16.

Furthermore, in each embodiment, during normal operation, the two left and right installation frames 21 may be left installed on the side frame members 5, 6 of the entrance/exit 4 as needed, with or without the use of fixing means such as clamps (not shown).

The present invention can be used, for example, to prevent water from passing through openings such as entrances and exits inside a door frame that are opened and closed by the doors of a swing door device, or openings that serve as passageways or entrances, during heavy rain or floods.

DESCRIPTION OF SYMBOLS 1 Front door panel 2 Door frame of front door 4 Doorway inside the door frame forming the opening 5, 6 Left and right side frame members forming the left and right side surfaces of the doorway 8 Bottom frame member forming the bottom surface of the doorway 8A Door stop portion of the bottom frame member 20 Water stop device 21 Installation frame 22 Water stop panel 28 Facing member 29 Outer seal member 31 Pressing down means 35, 55, 65 Pressing means 30 Bottom seal member 40 Side seal member 41 Lower seal member

Claims (13)

A water stop device for preventing water from passing through an opening having left and right side surfaces and a bottom surface,
The bottom surface is formed by a lower frame member, and is configured to include left and right installation frames erected on the upper surface of the lower frame member, and a water stop panel installed between these installation frames ,
A water-stopping device characterized in that a bottom sealing member that contacts the top surface of the lower frame member is provided on the bottom surfaces of the left and right installation frames, and a lower sealing member that is compressed between the bottom surface of the water-stopping panel and the top surface of the lower frame member is provided on the bottom surface of the water -stopping panel. 2. The waterproof device according to claim 1 , wherein the left and right side surfaces are formed by left and right side frame members, and the left and right installation frames are arranged along these side frame members. 3. The waterproof device according to claim 2 , wherein the left and right installation frames are detachable from the left and right side frame members. 4. The waterproof device according to claim 3 , wherein the left and right installation frames are provided with outer surface seal members that come into contact with the left and right side frame members. In the water stopping device described in claim 3 or 4 , the water stopping panel is provided with a pressing means for pressing the left and right installation frames against the left and right side frame members, and the pressing force of this pressing means presses the left and right installation frames against the left and right side frame members, thereby attaching these installation frames to the left and right side frame members, and the left and right installation frames can be removed from the left and right side frame members by releasing the pressing force. 6. The waterproof device according to claim 5, wherein a plurality of said pressing means are provided in the vertical direction. A water stop device according to any one of claims 1 to 6, characterized in that the water stop panel is separable from the left and right installation frames. The waterstop device described in claim 7, wherein the waterstop panel is provided with side seal members that are compressed by members constituting the left and right installation frames. The water stop device described in claim 8, wherein the members constituting the left and right installation frames are facing members that face the water stop panel in the direction of the opening. A water stop device according to any one of claims 7 to 9, characterized in that the left and right installation frames are provided with push-down means for pushing down the water stop panel. 11. The waterproof device according to claim 10, wherein the push-down means is provided for each of the left and right installation frames. 12. The waterproof device according to claim 1 , wherein the opening is an entrance/exit. In the water stopping device described in claim 12 , the entrance and exit are opened and closed by a door, and the upper surface of the lower frame member on which the left and right installation frames are erected is the upper surface of a door stop portion provided on the lower frame member to determine the fully closed position of the door.