JP7837188B2 - Water shutoff device - Google Patents

Description

This invention relates to a water-stopping device.

Conventionally, a watertight door has been disclosed that comprises an annular door frame and a door body that seals the opening of the door frame, thereby preventing water from entering through the opening (for example, Patent Document 1). In this watertight door, a retaining portion for holding a watertight rubber is integrally formed on the door frame. This watertight door seals the opening by sealing the space between the door frame and the door body with the watertight rubber.

Japanese Patent Publication No. 2015-151717

Incidentally, even in configurations where the above-mentioned water-stopping device is not installed on the door frame, it would be beneficial if water could be stopped after the door frame was installed.

This invention has been made in view of the above circumstances, and one of its objectives is to provide a water-stopping device that can stop water from entering an opening even when a door frame is installed.

The water-stopping device according to the present invention is a frame-shaped water-stopping device that is installed in an opening of a structure, attached to a door frame to which a door body is rotatably connected, and interposed between the door frame and the door body when the door body is closed. The device comprises a frame body having a holding portion and attachable to the door frame, and an elastic portion held by the holding portion, which seals the space between the door frame and the door body by contacting the door body when the door body is closed.

With this configuration, the frame can be attached to the door frame, allowing it to be installed on the door frame. The elastic part held by the frame's retaining portion seals the gap between the door frame and the door. Therefore, water can be sealed at the opening even when the door frame is installed.

In the aforementioned water-stopping device, for example, the door frame has an upper edge, a lower edge, a hinge-side edge connecting the upper and lower edges and to which the door body is connected, and a door-end-side edge connecting the upper and lower edges and opposite the hinge-side edge. The elastic portion is spaced apart from the rotational trajectory of the end of the door body opposite the center of rotation of the door body, which is connected to the hinge-side edge.

With this configuration, the elastic part is spaced apart from the rotational trajectory of the end of the door body opposite to the center of rotation of the door body, which is connected to the hinge-side edge of the door frame. Therefore, the elastic part does not come into contact with the aforementioned end of the rotating door body, thus preventing it from being bent by the door body. Consequently, the elastic part is prevented from falling out of the retaining part.

In the aforementioned water-stopping device, for example, the door frame has an upper edge, a lower edge, a hinge-side edge connecting the upper and lower edges and to which the door body is connected, and a door-end-side edge connecting the upper and lower edges and opposite the hinge-side edge. The elastic part has an upper elastic body provided on the upper edge, a lower elastic body provided on the lower edge, a hinge-side elastic body provided on the hinge-side edge, and a door-end-side elastic body provided on the door-end-side edge. The upper elastic body, the lower elastic body, the hinge-side elastic body, and the door-end-side elastic body are each held in the holding part in a compressed state in the width direction, and the amount of compression of the hinge-side elastic body in the width direction is smaller than the amount of compression of the upper elastic body in the width direction, the amount of compression of the lower elastic body in the width direction, and the amount of compression of the door-end-side elastic body in the width direction.

With this configuration, the amount of compression in the width direction of the hinge-side elastic body is smaller than the amount of compression in the width direction of the upper elastic body, the lower elastic body, and the door-edge-side elastic body. Therefore, the hinge-side elastic body is more easily deformed (moved) relative to the holding part than the upper elastic body, the lower elastic body, and the door-edge-side elastic body. Thus, even if the hinge-side elastic body is bent by the rotating door body, its detachment from the holding part is suppressed.

In the aforementioned water-stopping device, for example, the door body separates one side of the opening from the other side, the door frame has an upper edge, a lower edge, a connection between the upper edge and the lower edge, a hinge-side edge to which the door body is connected, a connection between the upper edge and the lower edge, a door-side edge facing the hinge-side edge, a door stop surface located on the other side of the closed door body and facing the door body, extending across the upper edge, the lower edge, the hinge-side edge, and the door-side edge, extending from the door stop surface to the other side The frame has an extended mounting surface, and the frame is attached to the mounting surface. The elastic portion comprises an upper elastic body provided on the upper edge, a lower elastic body provided on the lower edge, a hinge-side elastic body provided on the hinge-side edge, and a door-side elastic body provided on the door-end-side edge. The amount of protrusion of the hinge-side elastic body from the door-stopping surface on the hinge-side edge is smaller than the amount of protrusion of the upper elastic body from the door-stopping surface on the upper edge, the amount of protrusion of the lower elastic body from the door-stopping surface on the lower edge, and the amount of protrusion of the door-end-side elastic body from the door-stopping surface on the door-end-side edge.

With this configuration, the amount of protrusion of the hinge-side elastic body is smaller than the protrusion of the upper elastic body, the lower elastic body, and the door-edge-side elastic body. Therefore, the hinge-side elastic body is less likely to be bent by the rotating door. Thus, the detachment of the hinge-side elastic body from the holding part is suppressed.

The water-stopping device according to the present invention has the effect of providing a water-stopping device that can stop water from entering an opening even when a door frame is installed.

Figure 1 is a schematic front view showing the general configuration of the watertight door of the first embodiment. Figure 2 is a cross-sectional view taken along line II-II in Figure 1. Figure 3 is a cross-sectional view taken along the line III-III in Figure 1. Figure 4 is a schematic diagram showing the elastic body of the first embodiment. Figure 5 is a cross-sectional view showing an enlarged portion of Figure 2, including the water-stopping device. Figure 6 is a cross-sectional view of the watertight door according to the second embodiment, and is a cross-sectional view corresponding to Figure 2. Figure 7 is a cross-sectional view showing an enlarged portion of Figure 6, including the water-stopping device. Figure 8 is a diagram illustrating the amount of protrusion of the elastic body in the second embodiment. Figure 9 is a diagram illustrating the amount of compression of the elastic body in the second embodiment. Figure 10 is a cross-sectional view of a reference example water-stopping door, and is a cross-sectional view corresponding to Figure 2. Figure 11 is a cross-sectional view of a reference example water-stopping door, and is a cross-sectional view corresponding to Figure 3.

The embodiments of the present invention will be described in detail below with reference to the drawings. However, the invention is not limited to these embodiments. Furthermore, some of the components in the following embodiments are easily substituted or substantially identical to those that are easily substituted by those skilled in the art.

<First Embodiment>
Figure 1 is a schematic front view showing the general configuration of the watertight door of the embodiment. Figure 2 is a cross-sectional view taken along line II-II of Figure 1. Figure 3 is a cross-sectional view taken along line III-III of Figure 1.

The watertight door 1 in the embodiment shown in Figures 1 to 3 opens or closes an opening M formed in a structure S, including buildings such as office buildings, houses, and warehouses. The opening M is formed to connect one spatial side (e.g., the outdoor space side) and the other spatial side (e.g., the indoor space side) of the structure S. The watertight door 1 in this embodiment is a so-called watertight door that prevents water from entering the interior of the structure S through the opening M. The watertight door 1 also opens and closes the opening M, allowing people to enter and exit the structure S through the opening M. The watertight door 1 in this embodiment comprises a door frame 4, a door body 5, and a watertight device 3 (Figures 2 and 3). The watertight device 3 is also called a sealing device.

In the following explanation, the direction of rotation when rotating the door body 5 to the closed position is sometimes referred to as the "direction of rotation when closed," and the direction of rotation when rotating the door body 5 to the open position is sometimes referred to as the "direction of rotation when open." Furthermore, the direction of rotation when closed is typically the direction along which water may flow when there is a possibility of water entering from one side of the space (hereinafter also referred to as one side of the opening M) to the other side of the space (hereinafter also referred to as the other side of the opening M) through the opening M. In other words, the direction of water flow is typically upstream on the side of the direction of rotation when open, and downstream on the side of the direction of rotation when closed. Also, the direction along the horizontal direction, where the pair of vertical frame members (vertical frames) 41 described later face each other, is sometimes referred to as the "door width direction." That is, the downstream side (indoor space side) is the side from which water intrusion should be prevented or suppressed, and the upstream side (outdoor space side) is the side from which potentially intruding water flows. Furthermore, the terms "outdoor space side" and "indoor space side" are merely convenient terms referring to the upstream and downstream sides where water intrusion is possible. This invention can also be applied to doors installed in locations where the concepts of houses or rooms are not necessarily clearly defined, such as corridors or other passageways.

The water-stopping device 3 seals the space between the door frame 4 and the door body 5 by contacting the door body 5 when the door body 5 closes the opening M (closed position), as described later. In other words, the water-stopping device 3 seals (stops water) the opening M.

The door frame 4 is fixedly attached to the structure S so as to surround the perimeter of the opening M. The door frame 4 is a four-sided frame type, consisting of a pair of vertical frame members 41A and 41B, an upper frame member 42, and a lower frame member 43. The pair of vertical frame members 41A and 41B are each provided at both ends of the opening M in the door width direction. The pair of vertical frame members 41A and 41B are collectively referred to as vertical frame member 41. The door body 5 is rotatably connected to vertical frame member 41A via a hinge 55. Vertical frame member 41 is the vertical frame member 41 on the hinge side. Vertical frame member 41B is opposite vertical frame member 41A. Vertical frame member 41B is the vertical frame member 41 on the door edge side. The pair of vertical frame members 41 face each other in the door width direction, straddling the space of the opening M, and are provided as a pair on the left and right in the door width direction. A pair of vertical frame members 41 are provided along the height direction (vertical direction). The pair of vertical frame members 41 connect the upper frame member 42 and the lower frame member 43. The upper frame member 42 is an example of the upper edge, the lower frame member 43 is an example of the lower edge, vertical frame member 41A is an example of the side edge on the hinge side, and vertical frame member 41B is an example of the side edge on the door edge side.

The door frame 4 is constructed by connecting the ends of a pair of vertical frame members 41 to the ends of a pair of upper frame members 42 and lower frame members 43 on the inner side of the opening M, forming an annular, square shape corresponding to the opening M. Here, the pair of vertical frame members 41, the upper frame member 42, and the lower frame member 43 are each formed from plate-shaped metal materials with a hollow cross-section. The pair of vertical frame members 41, the upper frame member 42, and the lower frame member 43 are sealed to the opening M with a sealant or similar material to create a watertight seal.

The upper frame member 42 and the lower frame member 43 are provided one each on the upper and lower sides of the opening M in the height direction. Here, the upper frame member 42 is provided on the upper side of the opening M in the height direction. The lower frame member 43 is provided on the lower side of the opening M in the height direction. The upper frame member 42 and the lower frame member 43 face each other in the height direction, straddling the space of the opening M. The upper frame member 42 and the lower frame member 43 are provided along the horizontal direction.

Furthermore, the door frame 4 has a door stop surface 4a, a mounting surface 4b, and an opposing surface 4c. The door stop surface 4a is provided across the upper frame member 42, the lower frame member 43, the vertical frame member 41A, and the vertical frame member 41B. The door stop surface 4a is located on the other side of the closed door body 5 and faces the door body 5.

The mounting surface 4b extends across the upper frame member 42, the lower frame member 43, the vertical frame member 41A, and the vertical frame member 41B. The mounting surface 4b extends from the door stop surface 4a to the other side.

The opposing surface 4c is provided across the upper frame member 42, lower frame member 43, vertical frame member 41A, and vertical frame member 41B. The opposing surface 4c extends to one side from the door stop surface 4a. The opposing surface 4c faces the closed door body 5 in the width direction.

As shown in Figure 1, the door body 5 is a door opening/closing mechanism that is rotatably supported by the door frame 4 and opens and closes the opening M. That is, the door body 5 opens or closes the opening M. In this embodiment, the door body 5 is a single-leaf door. As shown in Figure 2, the door body 5 is constructed as a rectangular panel-shaped member by assembling a frame member 51, such as a stile, vertical bars, and horizontal bars, and then attaching plate-shaped door surface materials 52 from both sides.

As shown in Figure 1, the door body 5 is equipped with a doorknob 9 or the like at one end in the door width direction for opening and closing the door body 5. When the doorknob 9 is in the closed position, it restricts the rotation of the door body 5 in the closed position. When the doorknob 9 is in the open position, it allows the rotation of the door body 5. The door body 5 is also equipped with a hinge 55 at the other end in the door width direction. The hinge 55 has two rotation axes parallel to the vertical direction, offset horizontally, and rotatably supports the door body 5 on one of the vertical frame members 41 of the door frame 4.

Therefore, the door body 5 can rotate relative to the door frame 4, with the pivot axis of the hinge 55 as the center of rotation C1, between a closed position that closes the opening M and an open position that opens the opening M. By rotating relative to the door frame 4 from the closed position to the open position, the door body 5 moves toward the outdoor space and opens the opening M.

As shown in Figures 2 and 3, the water-stopping device 3 comprises a frame 60 and an elastic part 70. The water-stopping device 3 is formed in a frame shape along the door frame 4. The frame 60 and the elastic part 70 are attached around the entire circumference of the door frame 4. The elastic part 70 is interposed between the door frame 4 and the door body 5 in an elastically deformed state when the door body 5 is in the closed position that closes the opening M, thereby suppressing the flow of water between the door body 5 and the door frame 4.

The frame 60 comprises a fixed frame member 61 and a receiving member 63. The frame 60 is attached to the door frame 4. That is, the frame 60 is attachable to the door frame 4. The fixed frame member 61 has wall portions 61a to 61c. Wall portion 61a is superimposed on the mounting surface 4b of the door frame 4 and fixed to the mounting surface 4b by fasteners 64 such as screws. Note that wall portion 61a may also be fixed to the mounting surface 4b by adhesive or other means. Wall portion 61b extends inward from wall portion 61a to the frame 60. Wall portion 61c extends from wall portion 61b to one side of the opening. The fixed frame member 61 is constructed from a bent sheet metal member. The receiving member 63 is located on one side of the opening M relative to wall portion 61b. The receiving member 63 is constructed from an elastic material such as rubber.

The wall portions 61b and 61c of the fixed frame member 61 and the receiving member 63 constitute a holding portion 65. A recess 65a is formed in the holding portion 65. An elastic portion 70 is placed in the recess 65a. The holding portion 65 holds the elastic portion 70 placed in the recess 65a. More specifically, the holding portion 65 holds the elastic portion 70 placed in the recess 65a by sandwiching it with the mounting surface 4b.

The elastic portion 70 is held by the retaining portion 65 with a portion of it protruding from the retaining portion 65. The elastic portion 70 seals the space between the door frame 4 and the door body 5 by contacting the door body 5 when the door body 5 is closed.

The elastic section 70 comprises an upper elastic body 62C, a lower elastic body 62D, a hinge-side elastic body 62A, and a door-edge-side elastic body 62B. The term "elastic body 62" is used collectively to refer to the upper elastic body 62C, the lower elastic body 62D, the hinge-side elastic body 62A, and the door-edge-side elastic body 62B. The upper elastic body 62C is provided on the upper frame member 42. The lower elastic body 62D is provided on the lower frame member 43. The hinge-side elastic body 62A is provided on the vertical frame member 41A. The door-edge-side elastic body 62B is provided on the vertical frame member 41B. Each elastic body 62 is compressed in the width direction and placed in the recess 65a, and held by the holding section 65. Each elastic body 62 is made of, for example, rubber (waterproofing rubber) and has elasticity. Note that the elastic body 62 may be made of other materials.

Figure 4 is a schematic diagram of the elastic body of the first embodiment. In Figure 4, the elastic body 62 in a free state, not held by the holding part 65, is shown by a dashed line, and the elastic body 62 compressed in the width direction is shown by a solid line. As shown in Figure 4, the elastic body 62 is compressed from its free state in the width direction and stretched in the depth direction (front-to-back direction) perpendicular to the width direction, and then placed in the recess 65a. That is, the elastic body 62 is placed in the recess 65a in a deformed state, having been deformed from its free state. The width direction dimension L1b of the deformed elastic body 62 is smaller than the width direction dimension L1a of the free elastic body 62. Also, the depth direction dimension L2b of the deformed elastic body 62 is larger than the depth direction dimension L2a of the free elastic body 62. The elastic body 62 is bonded to the holding part 65 by an adhesive seal 66 (adhesive part), etc.

Figure 5 is a cross-sectional view showing an enlarged portion of Figure 2, including the water-stopping device. In Figure 5, the portion of the elastic body 62 including the door-side end when the door body 5 is open is indicated by a dashed line. The elastic body 62 is compressed in the depth direction by pressure from the door body 5 when it is open. As a result, the elastic body 62 adheres tightly to the closed door body 5. In this state, the elastic body 62 seals the space between the door frame 4 and the door body 5. In this embodiment, when the door body 5 is open, the hinge-side elastic body 62A coincides with the rotation trajectory T1 of the end 5b (corner) of the side 5a of the door body 5, which is connected to the vertical frame member 41A, opposite to the rotation center C1 of the door body 5. The hinge-side elastic body 62A is bent by the end 5b of the closed door body 5, but it does not detach from the holding part 65 because it is bonded to the holding part 65 by the adhesive seal 66.

As described above, the water-stopping device 3 of this embodiment is attached to a door frame 4, which is provided in the opening M of the structure S and to which the door body 5 is rotatably connected. When the door body 5 is closed, the water-stopping device 3 is a frame-shaped interposition between the door frame 4 and the door body 5. The water-stopping device 3 comprises a frame 60 and an elastic part 70. The frame 60 has a holding part 65 and is attachable to the door frame 4. The elastic part 70 is held by the holding part 65 and seals the space between the door frame 4 and the door body 5 by contacting the door body 5 when the door body 5 is closed.

With this configuration, the frame 60 can be attached to the door frame 4, allowing it to be installed on the door frame 4. The elastic portion 70, held by the retaining portion 65 of the frame 60, seals the space between the door frame 4 and the door body 5. Therefore, water can be sealed at the opening M even when the door frame 4 is installed.

Therefore, when implementing waterproofing measures for the opening M, the already installed door frame 4 can be used as is without replacement. Furthermore, there is no need to change the door body 5 to one with a cremone handle or similar. Thus, according to this embodiment, waterproofing measures for the opening M can be implemented in a short period of time. Also, while the use of a waterproofing plate requires storage space for the plate, the configuration of this embodiment eliminates the need for storage space for the waterproofing device 3. Additionally, while the installation of electric drainage equipment such as pumps requires a long construction period, the configuration of this embodiment eliminates the need for electrical work, allowing for waterproofing measures to be implemented in a short period of time.

Furthermore, in the above configuration, the elastic part 70 (elastic body 62) is replaceable. Therefore, maintenance to maintain water-sealing performance is easy.

In the above configuration, for example, it was confirmed that the JIS leakage rating Ws-4 was met when the water-stopping device 3 was attached to the door frame 4 and the door body 5 was closed. Furthermore, it was confirmed that the JIS leakage rating Ws-3 was met when the water-stopping device 3 was attached to the door frame 4 and the door body 5 was opened and closed, for example, 10,000 times.

<Second Embodiment>
Figure 6 is a cross-sectional view of the watertight door of the second embodiment, corresponding to the cross-sectional view in Figure 2. Figure 7 is an enlarged cross-sectional view showing a portion of Figure 6, including the watertight device. Figure 8 is a diagram illustrating the amount of protrusion of the elastic body in the second embodiment. Figure 9 is a diagram illustrating the amount of compression of the elastic body in the second embodiment.

This embodiment differs primarily from the first embodiment in some aspects of the configuration of the water-stopping device 3. As shown in Figure 6, in this embodiment, the water-stopping device 3 includes a spacer 81. The spacer 81 is provided in the portion of the water-stopping device 3 that overlaps with the vertical frame member 41A of the door frame 4, and is not provided in other portions.

As shown in Figure 7, the spacer 81 is located on one side of the wall portion 61b of the fixed frame member 61. In this embodiment, the wall portions 61b and 61c of the fixed frame member 61, the receiving member 63, and the spacer 81 constitute the holding portion 65, with a recess 65a provided between the spacer 81 and the wall portion 61c. The spacer 81 is interposed between the hinge-side elastic body 62A and the mounting surface 4b of the door frame 4, separating the hinge-side elastic body 62A from the mounting surface 4b.

Furthermore, as shown in Figure 8, the amount of protrusion of the hinge-side elastic body 62A from the door stop surface 4a of the vertical frame member 41A is smaller than the amount of protrusion of the upper elastic body 62C from the door stop surface 4a of the upper frame member 42, the amount of protrusion of the lower elastic body 62D from the door stop surface 4a of the lower frame member 43, and the amount of protrusion of the door-edge-side elastic body 62B from the door stop surface 4a of the vertical frame member 41B.

Furthermore, as shown in Figure 9, the shape of the free-state hinge-side elastic body 62A differs from the shapes of the free-state upper elastic body 62C, lower elastic body 62D, and door-edge-side elastic body 62B. Specifically, the widthwise dimension L1a of the free-state hinge-side elastic body 62A is smaller than the widthwise dimension L1a of the free-state hinge-side elastic body 62A, the free-state upper elastic body 62C, the free-state lower elastic body 62D, and the free-state door-edge-side elastic body 62B. The widthwise and depthwise dimensions of the recesses 65a into which each elastic body 62 is placed are the same. Therefore, the widthwise compression of the deformed hinge-side elastic body 62A is smaller than the widthwise compression of the deformed upper elastic body 62C, the deformed lower elastic body 62D, and the deformed door-edge-side elastic body 62B.

In this embodiment, as can be seen from Figure 7, the hinge-side elastic body 62A is spaced apart from the rotational trajectory T1 of the end 5b on the side 5a of the door body 5, which is connected to the vertical frame member 41A, and is opposite to the rotational center C1 of the door body 5. That is, in this embodiment, the entire elastic portion 70 is spaced apart from the rotational trajectory T1 of the end 5b on the side 5a of the door body 5, which is opposite to the rotational center C1 of the door body 5, which is connected to the vertical frame member 41A. The configuration that separates the hinge-side elastic body 62A from the rotational trajectory T1 of the end 5b on the side 5a of the door body 5, which is opposite to the rotational center C1 of the door body 5, may consist of only the spacer 81, only the shape (amount of protrusion) of the hinge-side elastic body 62A, or a combination of both.

As described above, in this embodiment, the door frame 4 comprises an upper frame member 42 (upper edge), a lower frame member 43 (lower edge), a vertical frame member 41A (side edge on the hinge side) connecting the upper frame member 42 and the lower frame member 43 and to which the door body 5 is connected, and a vertical frame member 41B (side edge on the door edge side) connecting the upper frame member 42 and the lower frame member 43 and facing the vertical frame member 41A. The elastic portion 70 is spaced apart from the rotational trajectory T1 of the end portion 5b of the door body 5 on the side 5a of the door body 5, which is connected to the vertical frame member 41A, and is opposite to the rotational center C1 of the door body 5.

With this configuration, the elastic portion 70 is spaced apart from the rotational trajectory T1 of the end 5b of the door body 5 opposite to the rotational center C1 of the door body 5, which is connected to the vertical frame member 41A of the door frame 4. Therefore, the elastic portion 70 does not come into contact with the aforementioned end 5b of the rotating door body 5, thus preventing the elastic portion 70 from being bent by the door body 5. Consequently, the elastic portion 70 is prevented from falling out of the retaining portion 65.

Furthermore, the elastic section 70 includes an upper elastic body 62C provided on the upper frame member 42, a lower elastic body 62D provided on the lower frame member 43, a hinge-side elastic body 62A provided on the vertical frame member 41A, and a door-edge-side elastic body 62B provided on the vertical frame member 41B. The upper elastic body 62C, lower elastic body 62D, hinge-side elastic body 62A, and door-edge-side elastic body 62B are each held in the holding section 65 in a compressed state in the width direction. The amount of compression in the width direction of the hinge-side elastic body 62A is smaller than the amount of compression in the width direction of the upper elastic body 62C, the lower elastic body 62D, and the door-edge-side elastic body 62B.

With this configuration, the amount of compression in the width direction of the hinge-side elastic body 62A is smaller than the amount of compression in the width direction of the upper elastic body 62C, the lower elastic body 62D, and the door-edge-side elastic body 62B. Therefore, the hinge-side elastic body 62A is more easily deformed (moved) relative to the holding part 65 than the upper elastic body 62C, the lower elastic body 62D, and the door-edge-side elastic body 62B. Thus, even if the hinge-side elastic body 62A is bent by the rotating door body 5, its detachment from the holding part 65 is suppressed.

Furthermore, the widthwise compression amounts of the upper elastic body 62C, the lower elastic body 62D, and the door-edge elastic body 62B are all greater than the widthwise compression amount of the hinge-side elastic body 62A, thus improving water-sealing performance. Since the hinge-side elastic body 62A is on the hinge side, the pressing force from the door body 5 is greater compared to the other elastic bodies 62. Therefore, even if the widthwise compression amount of the hinge-side elastic body 62A is small, water-sealing performance can be ensured.

Furthermore, the door body 5 separates one side of the opening M from the other side. The door frame 4 has a door stop surface 4a and a mounting surface 4b. The door stop surface 4a extends across the upper frame member 42, lower frame member 43, vertical frame member 41A, and vertical frame member 41B, and is located on the other side of the closed door body 5, facing the door body 5. The mounting surface 4b extends across the upper frame member 42, lower frame member 43, vertical frame member 41A, and vertical frame member 41B, and extends from the door stop surface 4a to the other side. The amount of protrusion of the hinge-side elastic body 62A of the vertical frame member 41A from the door stop surface 4a is smaller than the amount of protrusion of the upper elastic body 62C of the upper frame member 42 from the door stop surface 4a, the amount of protrusion of the lower elastic body 62D of the lower frame member 43 from the door stop surface 4a, and the amount of protrusion of the door-edge-side elastic body 62B of the vertical frame member 41B from the door stop surface 4a.

With this configuration, the amount of protrusion of the hinge-side elastic body 62A is smaller than the protrusion of the upper elastic body 62C, the lower elastic body 62D, and the door-edge-side elastic body 62B. Therefore, the hinge-side elastic body 62A is less likely to be bent by the rotating door body 5. Thus, the detachment of the hinge-side elastic body 62A from the holding part 65 is suppressed.

<Reference example>
Figure 10 is a cross-sectional view of a reference example water-stopping door, corresponding to Figure 2. Figure 11 is a cross-sectional view of a reference example water-stopping door, corresponding to Figure 3.

As shown in Figures 10 and 11, in the reference example of the watertight door 100, the holding portion 65 of the watertight device 3 is integrally formed with the door frame 4. The elastic body 62 of the watertight door 100 has the shape shown in Figures 8 and 9.

Furthermore, the water-stopping device according to the embodiments of the present invention described above is not limited to the embodiments described above, and various modifications are possible within the scope of the claims. The water-stopping device according to this embodiment may be constructed by appropriately combining the components of each embodiment described above.

1. Water-stopping door 3. Water-stopping device 4. Door frame 4a. Door stop surface 4b. Mounting surface 5. Door body 5a. Side portion 5b. End portion 41A. Vertical frame member (side edge portion on the hinge side)
41B Vertical frame member (side edge on the door edge side)
42 Upper frame member (upper edge portion)
43. Lower frame member (lower edge portion)
60 Frame 70 Elastic part C1 Rotation center M Opening S Structure T1 Rotation trajectory

Claims (3)

A frame-shaped water-stopping device that is installed in an opening of a structure, attached to a door frame to which a door body is rotatably connected, and interposed between the door frame and the door body when the door body is closed,
A frame having a holding portion and attachable to the door frame,
An elastic part is held in the holding part and seals the space between the door frame and the door body by contacting the door body when the door body is closed,
Equipped with,
The aforementioned door frame is
The upper edge and,
Lower edge and,
The upper edge and the lower edge are connected, and the hinge side edge is connected to the door body.
The upper edge and the lower edge are connected, and the side edge on the door-side facing the side edge on the hinge side,
It has,
The elastic portion is a water -stopping device, spaced apart from the rotational trajectory of the end of the door body opposite to the center of rotation of the door body, on the side of the door body connected to the side edge on the hinge side. A frame-shaped water-stopping device that is installed in an opening of a structure, attached to a door frame to which a door body is rotatably connected, and interposed between the door frame and the door body when the door body is closed,
A frame having a holding portion and attachable to the door frame,
An elastic part is held by the holding part and seals the space between the door frame and the door body by contacting the door body when the door body is closed,
Equipped with,
The aforementioned door frame is
The upper edge and,
Lower edge and,
The upper edge and the lower edge are connected, and the hinge side edge is connected to the door body.
The upper edge and the lower edge are connected, and the side edge on the door-side facing the side edge on the hinge side,
It has,
The elastic portion is
The upper elastic body provided on the upper edge,
The lower elastic body provided at the lower edge,
The elastic body on the suspension side is provided on the side edge of the suspension side,
The door-side elastic body provided on the side edge of the door-side,
It has,
The upper elastic body, the lower elastic body, the suspension-side elastic body, and the door-edge-side elastic body are each held in the holding portion in a state of compression in the width direction.
A water-stopping device wherein the amount of compression in the width direction of the suspension-side elastic body is smaller than the amount of compression in the width direction of the upper elastic body, the amount of compression in the width direction of the lower elastic body, and the amount of compression in the width direction of the door-edge-side elastic body. A frame-shaped water-stopping device that is installed in an opening of a structure, attached to a door frame to which a door body is rotatably connected, and interposed between the door frame and the door body when the door body is closed,
A frame having a holding portion and attachable to the door frame,
An elastic part is held by the holding part and seals the space between the door frame and the door body by contacting the door body when the door body is closed,
Equipped with,
The door body separates one side of the opening from the other side.
The aforementioned door frame is
The upper edge and,
Lower edge and,
The upper edge and the lower edge are connected, and the hinge side edge is connected to the door body.
The upper edge and the lower edge are connected, and the side edge on the door-side facing the side edge on the hinge side,
The door stop surface, located on the other side of the door body when it is closed and facing the door body, extends across the upper edge, the lower edge, the side edge on the hinge side, and the side edge on the door edge side,
The mounting surface extends from the door stop surface to the other side, encompassing the upper edge, the lower edge, the side edge on the hinge side, and the side edge on the door edge side.
And,
The frame is attached to the mounting surface,
The elastic portion is
The upper elastic body provided on the upper edge,
The lower elastic body provided at the lower edge,
The elastic body on the suspension side is provided on the side edge of the suspension side,
The door-side elastic body provided on the side edge of the door-side,
It has,
A water-stopping device wherein the amount of the hinge-side elastic body protruding from the door stop surface at the hinge-side edge is smaller than the amount of the upper elastic body protruding from the door stop surface at the upper edge, the amount of the lower elastic body protruding from the door stop surface at the lower edge, and the amount of the door-end side elastic body protruding from the door stop surface at the door-end side edge.