Door device

The integrated watertight mechanism in the door device addresses the storage issues of separate water stop devices by enhancing water-stopping capability through a retractable hook and receiving member, facilitating easy operation and cost-effective integration.

JP2025177658APending Publication Date: 2025-12-05BUNKA SHUTTER CO LTD
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Patent Information

Application Number
JP2024084687
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-05-24
Publication Date
2025-12-05

AI Technical Summary

Technical Problem

Conventional water stop devices require separate storage and are often misplaced, leading to difficulties in installation during emergencies.

Method used

A door device integrated with a watertight mechanism, featuring a retractable hook member and receiving member that generates engagement pressure for improved contact force between the door body, airtight member, and door frame, without needing a separate component.

Benefits of technology

Enhances water-stopping function by integrating the mechanism into the door device, ensuring easy operation and cost-effective implementation.

✦ Generated by Eureka AI based on patent content.

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Abstract

To provide a door device which can improve a water stop function without needing a device as a different member from the door device.SOLUTION: A door device includes: a door frame 12; a door body 11; an airtight member arranged between the door frame 12 and the door body 11; a lock device which includes a strike 151 provided at the door frame 12 and a dead bolt 153 provided at the door body 11 so as to protrude / retreat; and a water stop device which includes a receiving member 161 provided at the door frame 12 or the door body 11, and a hook member 163 provided at the door body or the door frame so as to protrude / retreat. In a state where the hook member 163 is made to protrude and is inserted in a receiving member 161, in a state of the door body 11 being closed, between the hook member 163 and the receiving member 161, an engagement pressure is generated which acts so as to improve the contact force between the door body 11, the airtight member 13 and the door frame 12.SELECTED DRAWING: Figure 3
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Description

[Technical Field]

[0001] The present invention relates to a door device for opening and closing an opening. [Background technology]

[0002] BACKGROUND ART Conventionally, waterproofing devices or water stop devices (hereinafter referred to as "water stop devices") installed at openings in buildings and the like have been used to prevent or reduce water intrusion from openings in the buildings and the like during flood damage. Patent Document 1 discloses a technology relating to such a waterproof device that is provided in a door frame for installing a door so that it can be opened and closed. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Publication No. 2022-055309 Summary of the Invention [Problem to be solved by the invention]

[0004] In the case of a device that is an independent component separate from the door device, such as the water stop device shown in Patent Document 1, a storage location is required when the device is not in use. Because such devices are not used frequently, they tend to be stored in a location where they cannot be easily accessed (or the storage location is often forgotten), which can lead to problems such as the inability to smoothly install the device when it is needed.

[0005] In view of the above, an object of the present invention is to provide a door device that can improve water-stopping function without requiring a device as a separate member from the door device. [Means for solving the problem]

[0006] (Configuration 1) a watertight device having a receiving member provided on the door frame or the door body, and a hook member provided on the door body or the door frame so as to be retractable, and wherein when the door body is closed and the hook member is inserted into the receiving member, an engagement pressure is generated between the hook member and the receiving member which acts to improve the contact force between the door body, the airtight member, and the door frame.

[0007] (Configuration 2) The door device described in configuration 1 is provided with a deadbolt displacement tolerance mechanism that allows displacement of the position of the deadbolt due to movement of the door body in the closing direction when the locking device is in a watertight closed state in which the door body is closed and the hook member is protruding and inserted into the receiving member.

[0008] (Configuration 3) The door device according to configuration 1 or 2, wherein the strike hole is configured to be present in a range facing the deadbolt in a natural closed state in which the door body is closed and no external force is being applied to the door body, and the strike hole is configured to be present in a range facing the deadbolt in a watertight closed state in which the door body is closed and the hook member is protruding and inserted into the receiving member.

[0009] (Configuration 4) 4. The door device according to any one of configurations 1 to 3, wherein the receiving member is disposed on an indoor side of the strike in a depth direction.

[0010] (Configuration 5) The door device according to any one of configurations 1 to 4, wherein at least one of the hooking member and the receiving member has an inclined surface, so that when the hooking member is protruded and inserted into the receiving member in a natural closed state in which the door body is closed and no external force is being applied to the door body, the hooking member does not collide with the receiving member, and when the hooking member is fully protruded and inserted into the receiving member, the engagement pressure is generated between the hooking member and the receiving member.

[0011] (Configuration 6) 6. The door device according to any one of configurations 1 to 5, wherein an operating unit for operating the extending and retracting operation of the hook member is provided on the indoor side.

[0012] (Configuration 7) 7. The door device according to any one of configurations 1 to 6, wherein the waterproofing device is provided at a lower portion of the door device.

[0013] (Configuration 8) 8. The door device according to any one of configurations 1 to 7, wherein a plurality of the waterproof devices are provided. [Effects of the Invention]

[0014] According to the door device of the present invention, since the door device has a water stop device built into it, the water stop function can be improved without requiring a device as a separate component from the door device. [Brief explanation of the drawings]

[0015] [Figure 1] 1 is a perspective view showing a door device according to an embodiment of the present invention; [Figure 2] 1 is a diagram showing a door device according to an embodiment; [Figure 3] FIG. 1 is a diagram showing a locking device and a water stop device provided in a door device according to an embodiment; [Figure 4] FIG. 1 is a diagram showing a waterproofing device according to an embodiment; DETAILED DESCRIPTION OF THE INVENTION

[0016] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. Note that the following embodiments are merely examples of how the present invention can be realized, and are not intended to limit the scope of the present invention.

[0017] 1 and 2 are schematic diagrams showing a door device according to an embodiment of the present invention, in which FIG. 1 is a perspective view seen from the indoor side (showing the door slightly open), FIG. 2(a) is a vertical cross-sectional view, and FIG. 2(b) is a horizontal cross-sectional view. Also, Figure 3 shows the locking device and water stop device provided in the door device of this embodiment, where Figure 3(a) is a diagram showing the inner surface of the door edge side of the door frame 12 (the side opposite to the side where the hinge 14 is provided), and Figure 3(b) is a diagram showing the side surface of the door edge side of the door body 11 (the surface of the door body 11 opposite to the surface of the door frame 12 shown in Figure 3(a)). FIG. 4 is a horizontal cross-sectional view of the door body 11 in the vicinity where the waterproofing device is provided. In the following, the vertical direction (vertical direction in Figure 2(a)) when the door device is installed will be referred to as the vertical direction, the width direction of the door body 11 (left and right direction in Figure 2(b)) will be referred to as the width direction, and the direction from indoors (bottom in Figure 2(b)) to outdoors (top in Figure 2(b)) (or vice versa) (vertical direction in Figure 2(b)) will be referred to as the depth direction.

[0018] The door device 1 of this embodiment is a device for opening and closing an opening such as the entrance of a house, and as shown in FIG. a door frame 12 installed in an opening provided in a wall surface or the like; a door body 11 attached to a door frame 12 via a hinge 14 (see FIG. 2(b)) so as to be able to open and close; An airtight packing 13 (see FIGS. 2(a) and 2(b)) which is an airtight member arranged between the door frame 12 and the door body 11; a locking device 15 for locking the door device 1 when it is opened or closed; a water stop device 16 that improves the water stop function of the door device 1; It is equipped with:

[0019] The door body 11, which is an opening and closing body (door), and the door frame 12 provided for installing the door body 11 in the opening are the same as conventional door bodies and door frames except that they are provided with a locking device 15 and a watertight device 16 according to the present invention, and any door body or door frame can be used, so detailed explanation will be omitted here. Furthermore, the airtight gasket 13, which is made of an elastically deformable material such as rubber and functions to improve the airtightness between the door body 11 and the door frame 12 or as a door stop, may be the same as a conventionally used airtight gasket. Any airtight material that functions to improve the airtightness between the door body and the door frame can be used, and therefore a detailed description thereof will be omitted here. It is of course possible to use a gasket with better watertightness rather than simply using the same airtight gasket as conventionally used in door devices. Furthermore, a watertight gasket may be provided separately from the conventional airtight gasket. The watertight gasket does not necessarily need to completely seal the gap between the door frame and the door body; it may simply seal at least a portion of the bottom edge and both adjacent side edges (in a U-shape). For example, if a building has an opening such as a window that is not waterproofed, there is little point in waterproofing the door device up to that height, so a watertight gasket may be provided only up to the required height.

[0020] The locking device 15 is a strike 151 provided on the door frame 12; A deadbolt 153 provided in the door body 11 so as to be able to appear and disappear; It has the following characteristics. The locking device 15 is configured on the door body 11 side with a thumb turn 152 on the indoor side that is an operating unit for operating the extension and retraction of the deadbolt 153, a cylinder 154 that extends and retracts the deadbolt 153 when the corresponding key (not shown) is inserted and turned, a mechanism that converts the rotational movement of the thumb turn 152 and cylinder 154 into the extension and retraction of the deadbolt 153 and a case that houses this, and a front 155 that is placed on the end surface of the door body 11. These components of the locking device 15 that are provided on the door body 11 side are the same as those of conventional locking devices, and any locking device can be used, so detailed explanation will be omitted here. The strike 151 has a hole 1511 that receives the deadbolt 153, and is configured so that when the deadbolt 153 is extended and inserted into the strike 151 (hole 1511) in the "naturally closed state," the deadbolt 153 does not collide with the strike 151. That is, in the "naturally closed state," the hole 1511 of the strike 151 exists in a range facing the deadbolt 153, and the deadbolt 153 is configured so that when it is extended, it enters the hole 1511 (does not collide). The "naturally closed state" mentioned above refers to a state in which the door body is in a closed state due to the function of the device itself (when no external force is being applied to the door body), such as when the door body is closed by a door closer or when the latch bolt of the doorknob is engaged with the latch receiver, and the water stop device is not operating. The configuration in which the deadbolt does not collide with the strike in the naturally closed state is similar to that of conventional locking devices, but locking device 15 of this embodiment differs in that hole 1511 of strike 151 is formed larger on the indoor side compared to conventional locking devices. More specifically, hole 1511 is formed larger on the indoor side by the amount of deadbolt 153 moving indoors when water stop device 16 retracts door body 11 (moves the door body in the closing direction (indoor side)), as described below. In other words, even when the water stop device is activated, hole 1511 of strike 151 exists in a range opposite deadbolt 153, and is configured so that even when deadbolt 153 is advanced with the water stop device activated, it will fit within hole 1511 (will not collide). In this embodiment, the outdoor side of hole 1511 is located further outdoors than the outdoor side of hole 1611 of water-stopping device 16, while as can be seen from reference line L2 in Figure 3(a), hole 1511 has a size that extends to approximately the same position as the indoor side of hole 1611 of water-stopping device 16. The locking device 15 of the above configuration has "a deadbolt displacement tolerance mechanism that allows displacement of the position of the deadbolt as the door body moves in the closing direction when the locking device is in a watertight closed state in which the door body is closed and the hooking member is protruding and inserted into the receiving member (when the watertight device is operated)," and also "is configured so that the deadbolt does not collide with the strike when the deadbolt is protruding and inserted into the strike in a natural closed state in which the door body is closed and no external force is being applied to the door body, and is configured so that the deadbolt does not collide with the strike when the deadbolt is protruding and inserted into the strike in a watertight closed state in which the door body is closed and the hooking member is protruding and inserted into the receiving member (when the watertight device is operated)."

[0021] As can be seen from FIG. 1, the water stop device 16 of this embodiment is provided at the bottom of the door device 1. A receiving member 161 provided on the door frame 12; A hook member 163 provided so as to be able to appear and disappear from the door body 11; It has the following characteristics. The basic concept of the receiving member 161 is similar to that of a strike in a locking device, and the receiving member 161 has a hole 1611 for receiving the hook member 163 . As can be seen from the reference line L1 in Fig. 3(a), the position of the receiving member 161 in the depth direction is closer to the indoor side than the strike 151 of the locking device 15. On the other hand, as can be seen from the reference line L3 in Fig. 3(b), the position of the deadbolt 153 of the locking device 15 and the position of the hook member 163 of the water stop device 16 in the depth direction are approximately the same. In this embodiment, the water stop device 16 and the lock device 15 are shown as being in this positional relationship, but the relative positions of the two in the present invention are not limited to this, and the relative placement positions of the two in the depth direction in the application of the present invention can be any.

[0022] The water stop device 16 has, on the door body 11 side, a thumb turn 162 which is an operating part for operating the extending and retracting movement of the hooking member 163 and is provided on the indoor side, a mechanism for converting the rotational movement of the thumb turn 162 into the extending and retracting movement of the hooking member 163, a case for housing this, and a front 165 which is provided on the end surface of the door body 11. The mechanism for converting the rotational movement of the thumb turn 162 into the extending and retracting movement of the hooking member 163, and the case and front for housing this are similar to conventional locking devices (opening and closing with a key from the outdoor side is not required, and the structure is similar to that of conventional locking devices without the cylinder), and the same configuration as any locking device can be used, so detailed explanation of these will be omitted here. As shown in Fig. 4, the side surface of the hanging member 163 facing outdoors (upper side in Fig. 4) is tapered. This tapered surface (inclined surface) 1631 is formed so that the dimension of the hanging member 163 in the depth direction becomes smaller as it approaches the door edge in a horizontal cross-sectional view of the hanging member 163. In the "naturally closed state," the hooking member 163 having the tapered surface 1631 has a tip that does not collide with the hole 1611 of the receiving member 161 when it protrudes, but as the protrusion of the hooking member 163 progresses, the tapered surface 1631 comes into contact with the receiving member 161, causing the hooking member 163 to protrude completely, thereby operating to retract the door body 11 toward the indoor side. In other words, in the "naturally closed state," the hole 1611 of the receiving member 161 is present in the range facing the tip surface of the hooking member 163, but the hole 1611 is not present in a part of the outdoor side of the range facing at least the base portion of the hooking member 163. As a result, in the "naturally closed state," when the hooking member 163 is advanced, the tip of the hooking member 163 enters the hole 1511 (does not collide), but as it protrudes, the tapered surface 1631 comes into contact with the receiving member 161 (the outdoor side of the hole 1511). As mentioned above, an airtight gasket 13 made of an elastically deformable material is provided between the door body 11 and the door frame 12, and by the operation of the above-mentioned water-stopping device 16, these are pressed against each other, improving the water-stopping effect. In other words, the water stop device 16 of the above configuration is configured so that "when the door body is closed and the hooking member is protruded and inserted into the receiving member (when the water stop device is activated), an engagement pressure is generated between the hooking member and the receiving member that acts to improve the contact force between the door body, the airtight member, and the door frame," and also so that "by having an inclined surface, the hooking member is configured so that when the door body is closed and in a natural closed state in which no external force is applied to the door body, the hooking member does not collide with the receiving member when it is protruded and inserted into the receiving member, and is configured so that an engagement pressure is generated between the hooking member and the receiving member when the hooking member is fully protruded and inserted into the receiving member."

[0023] As described above, the door device 1 of this embodiment incorporates the water stopping device 16 described above, thereby improving the water stopping function without requiring a device as a separate component from the door device. As can be seen from the above explanation, the water stop device can be activated by a simple operation similar to that of locking a door, making it easy to operate, and since it can be constructed based on the same mechanism as conventional locking devices, it can be realized at low cost.

[0024] The door device 1 of this embodiment is preferable in that the water stop device 16 is provided at the bottom of the door device, which can further improve the water stop effect (initial water stop in the event of a flood) at the bottom of the door device. By providing the water stop device 16 at the bottom of the door device, the door body is subsequently pressed down by water pressure, which is why providing the water stop device 16 at the bottom of the door device is effective. The waterproof device is preferably provided within 300 mm, more preferably 200 mm, from the bottom end of the door body. The water stop device may be provided near the center or at the top of the door device, or a plurality of water stop devices may be provided (for example, provided in two places, one above and one below).

[0025] In this embodiment, the water stop device 16 is provided on the door leading side, but the water stop device may be provided on the door trailing side (the side where the hinge is located in the width direction). When providing the water stop device on the door trailing side (the side where the hinge is located), it is advisable to use a biaxial hinge or the like to enable the door body to be pulled in towards the indoor side in the depth direction on the door trailing side (the side where the hinge is located).

[0026] In this embodiment, an example is described in which a receiving member 161 is provided on the door frame 12 and a hooking member 163 is provided on the door body 11 so that it can be protruded and retracted, but the present invention is not limited to this, and it is also possible for the hooking member to be provided on the door frame side so that it can be protruded and retracted, and the receiving member to be provided on the door body side.

[0027] In this embodiment, the thumb turn 162 is used as an example of the operating unit that controls the extension and retraction of the hook member, but the present invention is not limited to this, and the operating unit may use any mechanism that can operate the extension and retraction of the hook member. For example, the operating unit may have a handle that is similar in structure to various door knobs so that it is easy to apply force. In addition, the knob may be removable. Furthermore, the operating unit is not limited to a rotational operation, and may be a sliding operation that controls the extension and retraction of the hook member. In this embodiment, the operating unit (thumb turn 162) is provided on the indoor side, but it may be provided on the outdoor side (or on both the indoor and outdoor sides). By providing the operating unit on the outdoor side, it becomes possible to activate the water shutoff function when going out. The outdoor operating unit may use a cylinder that is operated with a key, similar to a locking device.

[0028] In this embodiment, the strike hole 1511 of the locking device is formed larger on the indoor side, thereby forming a "deadbolt displacement allowance mechanism," but the present invention is not limited to this. The "deadbolt displacement allowance mechanism" may be anything that "allows displacement of the deadbolt's position with the door body moving in the closing direction when the door body is closed and the hook member is protruding and inserted into the receiving member to set the watertight closed state," and may be, for example, a strike mounting structure for the door frame in which the strike is mounted to the door frame so that it can slide in the depth direction (indoor side) by the required amount, or conversely, a deadbolt (such as a structure for mounting the case to the door body) that is configured so that it can slide in the depth direction (outdoor side) by the required amount.

[0029] In this embodiment, the tapered surface (inclined surface) 1631 of the hooking member of the water stop device is formed in a flat shape, but the present invention is not limited to this, and it can be formed in any shape that can perform the function based on the concept of the present invention that can be understood from the above explanation, such as a shape in which multiple flat surfaces are connected, a curved surface, or a combination of flat and curved surfaces. Furthermore, in this embodiment, an example is given in which an inclined surface is formed on the hook member, but the present invention is not limited to this, and it is also possible for an inclined surface to be formed on the receiving member, or for inclined surfaces to be formed on both the hook member and the receiving member. In addition, in this embodiment, an example is given in which the door body is configured to be pulled toward the indoor side as the hook member protrudes based on the inclined surface, but the present invention is not limited to this, and it may be possible, for example, to apply force to the door body toward the indoor side by hand while operating the water-stopping device to maintain that state (a state in which the contact force between the door body, airtight member, and door frame is improved) (it may also be possible to have no inclined surface).

[0030] In this embodiment, an example is described in which the locking device has only a key structure, but the present invention is not limited to this, and it may of course be one that is integrated with a doorknob or latch bolt, etc. [Explanation of symbols]

[0031] 1. Door device 11...door body 12...Door frame 13...Airtight material 15...Lock device 151...Strike 1511 holes (deadbolt displacement tolerance mechanism) 153...Deadbolt 16...Water stop device 161...Support member 163...Hanging member 1631...Tapered surface (inclined surface)

Claims

1. Door frames and The door body and an airtight member disposed between the door frame and the door body; a locking device having a strike provided on the door frame and a deadbolt provided on the door body so as to be able to protrude and retract; a water stopping device having a receiving member provided on the door frame or the door body and a hook member provided so as to be able to appear and disappear on the door body or the door frame; Equipped with The door device is configured such that, when the door body is closed and the hook member is protruded and inserted into the receiving member, an engagement pressure is generated between the hook member and the receiving member, which acts to improve the contact force between the door body, the airtight member, and the door frame.

2. 2. The door device according to claim 1, further comprising a deadbolt displacement tolerance mechanism that allows displacement of the position of the deadbolt as the door body moves in the closing direction when the locking device is in a watertight closed state in which the door body is closed and the hook member is protruding and inserted into the receiving member.

3. The strike hole is configured to be present in a range facing the deadbolt when the door body is closed and in a natural closed state where no external force is applied to the door body, and 2. The door device according to claim 1, wherein the strike hole is located in a range facing the deadbolt when the door body is closed and the hook member is inserted into the receiving member in a waterproof closed state.

4. The door device according to claim 3 , wherein the receiving member is disposed on an indoor side of the strike in a depth direction.

5. At least one of the hook member and the receiving member has an inclined surface, In a natural closed state in which the door body is closed and no external force is being applied to the door body, when the hooking member is protruded and inserted into the receiving member, the hooking member is configured not to collide with the receiving member, and 2. The door device according to claim 1, wherein the engaging pressure is generated between the hook member and the receiving member when the hook member is fully protruded and inserted into the receiving member.

6. 6. The door device according to claim 1, wherein an operating unit for operating the extending and retracting operation of the hook member is provided on the indoor side.

7. 6. The door device according to claim 1, wherein the waterproof device is provided at a lower portion of the door device.

8. The door device according to claim 7 , wherein a plurality of the water stop devices are provided.

Citation Information

Patent Citations

  • Water stop device

    JP2022055309A