Door device

Abstract

To provide a door device capable of improving a water cut-off function without requiring a device as a member separate from the door device.SOLUTION: An outward-opening door device provided at an entrance of a building, the door device including a door frame (12), a door body (11), an airtight member (13) disposed between the door frame (12) and the door body (11), and a hinge device (13) having one hinge shaft and configured to attach the door body (11) to the door frame (12) so as to be openable and closable, the hinge device (13) including a moving mechanism configured to allow the door body (11) to move in a direction along an entrance / exit direction of the entrance in a state where the door body (11) is closed.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to an outward-opening door device provided at the entrance of a building. [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) An outward-opening door device installed at an entrance to a building, comprising: a door frame; a door body; an airtight member arranged between the door frame and the door body; and a hinge device with a single hinge shaft that attaches the door body to the door frame so that it can be opened and closed, and that has a movement mechanism that allows the door body to move in a direction along the entrance / exit direction when the door body is closed.

[0007] (Configuration 2) The door device according to configuration 1, wherein the hinge device has two blade members, the hinge shaft that connects the two blade members so that they can be opened and closed, and a shaft cylinder that rotatably receives the hinge shaft, and the movement mechanism is configured to allow a change in the relative position of the hinge shaft and the shaft cylinder in a direction along the entrance and exit direction.

[0008] (Configuration 3) 3. The door device according to claim 2, wherein the movement mechanism is configured such that the shaft cylinder receives the hinge shaft so as to be movable in a direction along the entrance / exit direction.

[0009] (Configuration 4) 4. The door device according to claim 3, wherein the hole of the barrel has an elliptical shape in horizontal cross section with its major axis aligned with the entry / exit direction.

[0010] (Configuration 5) The door device according to configuration 3 or 4, wherein the shaft cylinder is formed on one of the two blade members, and the blade member having the shaft cylinder is attached to the door body.

[0011] (Configuration 6) 6. The door device according to any one of configurations 1 to 5, further comprising a movement limiting mechanism that limits the movement of the door body until a predetermined pressure is applied to the door body from the outside.

[0012] (Configuration 7) 6. The door device according to any one of configurations 3 to 5, wherein the hinge shaft protrudes upward, the axle cylinder opens downward to receive the hinge shaft, and has an upper inner surface inside the upper part of the axle cylinder that abuts against the upper end of the hinge shaft, and the upper inner surface has an inclined surface configured to position the axle cylinder on the outdoor side within its range of movement relative to the hinge shaft until a predetermined pressure is applied to the door body from the outdoor side.

[0013] (Configuration 8) The door device described in configuration 7, wherein the inclined surface has, in a vertical cross section along the entry / exit direction, a first inclined surface on the indoor side that becomes lower toward the indoors, and a second inclined surface on the outdoor side that becomes lower toward the outdoors, and the second inclined surface is longer than the first inclined surface.

[0014] (Configuration 9) 9. The door device according to configuration 8, wherein an angle of the second inclined surface relative to the horizontal plane is smaller than an angle of the first inclined surface relative to the horizontal plane.

[0015] (Configuration 10) A door device as described in any one of configurations 1 to 9, comprising a locking device having a strike provided on the door frame and a deadbolt provided so as to be able to appear and disappear on the door body, wherein the locking device comprises a deadbolt displacement allowance mechanism that allows displacement of the position of the deadbolt as the door body moves in the ingress / egress direction.

[0016] (Configuration 11) 11. The door device according to any one of configurations 1 to 10, further comprising a water-stopping device having a receiving member provided on the door frame or the door body, and a hooking member provided so as to be able to protrude and retract into the door body or the door frame, wherein when the door body is closed and the hooking member is protruded and inserted into the receiving member, an engagement pressure is generated between the hooking member and the receiving member, which acts to improve the contact force between the door body, the airtight member, and the door frame. [Effects of the Invention]

[0017] According to the door device of the present invention, it is possible to improve the waterproofing function without requiring a device as a separate member from the door device. [Brief explanation of the drawings]

[0018] [Figure 1] 1 is a schematic cross-sectional view showing a door device according to a first embodiment of the present invention; [Figure 2] FIG. 1 is a diagram showing a hinge device of a door device according to a first embodiment; [Figure 3] FIG. 1 is an explanatory diagram illustrating a waterproof function of the door device of the first embodiment. [Figure 4] FIG. 10 is a perspective view showing a door device according to a second embodiment. [Figure 5] FIG. 10 is a diagram showing a locking device and a watertight device provided in the door device of the second embodiment. [Figure 6] FIG. 10 shows a waterproof device according to a second embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0019] Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. Note that the following embodiment is one form for realizing the present invention, and is not intended to limit the scope of the present invention.

[0020] <Embodiment 1> FIG. 1 is a schematic diagram showing a door device according to a first embodiment of the present invention, where FIG. 1(a) is a schematic vertical cross-sectional view and FIG. 1(b) is a schematic horizontal cross-sectional view. In the following description, the up-down direction (up-down direction in FIG. 1(a)) when the door device is installed will be referred to as the up-down direction, the width direction of the door body 11 (left-right direction in FIG. 1(b)) will be referred to as the width direction, and the direction from indoors (bottom in FIG. 1(b)) to outdoors (top in FIG. 1(b)) (or vice versa) (up-down direction in FIG. 1(b)) will be referred to as the entrance / exit direction. Note that the orientation of the door body changes as it is opened and closed (rotated), but in the following description, except when the orientation of the door body is specifically mentioned, the "width direction" and "enter / exit direction" of the door body (and its associated hinge device, lock device, and watertight device) will be referred to as the directions when the door body is in a closed position.

[0021] The door device 1 of this embodiment is an outward-opening door device that is installed at the entrance of a building to open and close an opening (building entrance) 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; Door body 11 and An airtight packing 13 that is an airtight member disposed between the door frame 12 and the door body 11; a hinge device 14 having one hinge shaft that mounts the door body 11 to the door frame 12 so as to be able to open and close; It is equipped with:

[0022] 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 the hinge device 14 according to the present invention is used, 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 conventionally used airtight gaskets (airtight rubber). 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.

[0023] Figure 2 shows the hinge device 14, with Figure 2(a) showing the two blade members separated and Figure 2(b) showing the assembled state. Figure 2(c) is a schematic diagram showing the relationship between the shaft hole of the shaft cylinder and the hinge shaft in horizontal cross section. Figures 2(d) and (e) show the shape of the top surface of the shaft hole inside the shaft cylinder, with Figure 2(d) being a vertical cross section along the in / out direction (similar to Figure 2(a)), and Figure 2(e) being a vertical cross section along the width direction. The hinge device 14 of this embodiment is Two blade members, a first blade member 141 and a second blade member 142, a hinge shaft 143 that connects the two blade members so that they can be opened and closed, and a shaft cylinder 144 that rotatably receives the hinge shaft 143; a movement mechanism that allows the door body 11 to move in a direction along the entrance / exit direction (left-right direction in FIG. 2) when the door body 11 is closed; It is equipped with: In this embodiment, the "movement mechanism that allows the door body 11 to move in the direction along the in / out direction when the door body 11 is closed" is a movement mechanism that allows the relative position of the hinge shaft 143 and the shaft cylinder 144 to change in the direction along the in / out direction, and is configured by the shaft cylinder 144 receiving the hinge shaft 143 so that it can move in the direction along the in / out direction. More specifically, the shaft hole 1441 of the shaft cylinder 144 has an elliptical shape in horizontal cross section (see FIG. 2(c)), and when the door body 11 is closed, the long axis of the ellipse is along the in / out direction, and the length of the long axis is greater than the diameter of the hinge shaft 143, so that when the door body 11 is closed, the relative position of the hinge shaft 143 and the shaft cylinder 144 is allowed to change in the in / out direction (allowing it to move in the direction along the in / out direction). The shaft tube 144 is joined to the first blade member 141, and the hinge shaft 143 is joined to the second blade member 142. The first blade member 141 is attached to the door body 11, and the second blade member 142 is attached to the door frame 12. Therefore, when the relative position of the hinge shaft 143 and the shaft tube 144 changes (moves) in the direction along the entrance / exit direction, the relative position of the first blade member 141 and the second blade member 142 changes (moves) in the entrance / exit direction, and therefore, "when the door body 11 is closed, the door body 11 is allowed to move in the direction along the entrance / exit direction." The dimension of the oval in the minor axis direction is formed to be approximately the same as or slightly larger than the diameter of the hinge shaft 143, so that the hinge shaft 143 does not substantially move in the minor axis direction (see Figure 2(c)).

[0024] The hinge device 14 of this embodiment is configured so that the hinge shaft 143 protrudes upward, and the shaft cylinder 144 opens downward to receive the hinge shaft 143 . The upper end of the hinge shaft 143 is formed in a hemispherical shape (a spherical surface with a diameter smaller than that of the hinge shaft 143), and the inside of the upper part of the shaft tube 144 (the upper surface of the shaft hole 1441) has an upper inner surface (inclined surface) 1442 that abuts against the upper end of the hinge shaft 143. The upper inner surface 1442 has a shape like a cone that has been stretched in one direction (the outdoor side), and Fig. 2(d) shows a vertical cross-sectional shape along the entrance / exit direction, and Fig. 2(e) shows a vertical cross-sectional shape along the width direction. As shown in Fig. 2(d), the upper inner surface (inclined surface) 1442 has, in a vertical cross section along the entrance / exit direction, a first inclined surface 14422 on the indoor side that slopes downward toward the indoors (left side in Fig. 2(d)), and a second inclined surface 14421 on the outdoor side that slopes downward toward the outdoors (right side in Fig. 2(d)), the second inclined surface 14421 being longer than the first inclined surface 14422, and the angle θ1 of the second inclined surface 14421 with respect to the horizontal plane being smaller than the angle θ2 of the first inclined surface 14422 with respect to the horizontal plane. Note that, as shown in Fig. 2(e), the vertical cross section along the width direction is symmetrical. The upper end (spherical surface) of the hinge shaft 143 is in contact with and supported by the upper inner surface (inclined surface) 1442 of the above configuration (the weight of the door body 11 is applied), and therefore, a function (position-maintaining function) is performed to move the axis of the hinge shaft 143 so that it coincides with the apex of the upper inner surface (inclined surface) 1442 (to the position shown in FIG. 2(b)). On the other hand, when a force greater than a predetermined force determined by the magnitude of the inclination angle θ1 of the second inclined surface 14421 (and the weight and friction coefficient of the door body 11) is applied to the door body 11 in a direction from outdoors to indoors, the shaft cylinder 144 moves (relatively) to the hinge shaft 143 toward the indoor side (it climbs the second inclined surface 14421 (it looks like it is "going down" in the drawing, but it acts as if it is "climbing" mechanically). In other words, the upper inner surface (inclined surface) 1442 is a "movement limiting mechanism that limits relative movement until a predetermined pressure is applied to the door body from the outside" and also an "inclined surface configured so that the axle tube is positioned on the outside side of its movement range relative to the hinge axis until a predetermined pressure is applied to the door body from the outside."

[0025] 3A and 3B are explanatory diagrams illustrating the water-stopping function of the door device 1 of this embodiment, with Fig. 3A showing the normal state (when no water pressure is applied) and Fig. 3B showing the state in which the water-stopping function is being exercised. In this embodiment, the door body 11 is attached to the door frame 12 by two hinge devices 14, and only the upper hinge device is shown here (the lower hinge device has the same concept). Under normal circumstances (when pressure of a predetermined value or more is not being applied to the door body 11 from the outdoor side), as described above, the engagement between the upper inner surface (inclined surface) 1442 and the hinge shaft 143 positions the shaft cylinder 144 on the outdoor side relative to the hinge shaft 143 (the outdoor side in the range of movement of the shaft cylinder relative to the hinge shaft) (Fig. 3(a)). This state is the normal installation position of the door body 11, and the door opens and closes normally unless the above-mentioned force is applied. On the other hand, when water pressure during a flood exerts a pressure greater than a predetermined value on the door body 11 from the outdoor side, as explained above, the axle cylinder 144 moves indoors relative to the hinge axle 143, i.e., the door body 11 moves indoors and comes into closer contact with the airtight packing 13 (although the illustration shows the airtight packing 13 not deforming and overlapping with the door body 11, in reality the airtight packing 13 is compressed and deformed, increasing the mutual adhesion). This therefore acts to improve the tightness between the door body 11, airtight packing 13 and door frame 12, improving the waterproofing function. When the water level rises during a flood, the door body 11 is also subjected to buoyancy. The position-maintaining function of the door body 11, which is based on the engagement between the upper inner surface (inclined surface) 1442 and the hinge shaft 143, is also based on the weight of the door body, so when the door body 11 is subjected to buoyancy, this position-maintaining function tends to decrease, and therefore the above-mentioned water-stopping function (movement of the door body 11 toward the indoor side) becomes more likely to work. Therefore, while the door body's position-maintaining function is exerted under normal circumstances, the water-stopping function (movement of the door body toward the indoor side) becomes more likely to work during a flood, which is preferable.

[0026] As described above, the door device 1 of this embodiment can improve the watertight function without requiring a separate device from the door device. Furthermore, no special operation or installation of parts is required to activate the watertight function, making it extremely convenient. In addition, the first blade member 141 to which the shaft tube 144 is joined is attached to the door body 11 (one of the two blade members has a shaft tube formed thereon, and the blade member with the shaft tube is attached to the door body), which prevents the door edge side of the door body 11 from slightly sagging when the door body 11 is opened. For example, if a blade member with a shaft tube with an elongated hole whose long axis is in the entrance / exit direction is attached to the door frame, when the door body is opened 90 degrees, the width direction of the door body will be aligned with the long axis of the elongated hole. In this state, the cantilever structure of the door end (fixed by the hinge device) and the door edge (free end) will be aligned with the long axis of the elongated hole, which will cause the hinge axis to tilt strongly within the elongated hole, causing the door edge side of the door body 11 to sag slightly. In contrast, since the first blade member 141 to which the shaft tube 144 is joined is attached to the door body 11, the cantilever structure (width direction from the door end to the door end) of the door tail, which is fixed by the hinge device, and the door tip, which is the free end, and the direction of the long axis of the long hole are always perpendicular to each other, which prevents the door tip side from sagging slightly as described above.

[0027] In this embodiment, the "moving mechanism that allows the relative position of the hinge axis and the barrel to change in the direction along the inward / outward movement" is configured by an oval hole in the barrel, but the present invention is not limited to this, and the hole in the barrel may be elliptical or rectangular, for example. Furthermore, in this embodiment, the "moving mechanism that allows the door body to move in the in / out direction when the door body is closed" is exemplified as a "moving mechanism that allows the relative position of the hinge shaft and the barrel to change in the in / out direction," but the present invention is not limited to this, and any mechanism that allows the door body to move in the in / out direction when the door body is closed can be used as the moving mechanism. For example, the hole in the barrel may be a normal circle, but may be configured to allow the hinge shaft to move in the in / out direction (e.g., a mounting structure for the hinge shaft to the blade member that allows the hinge shaft to move in the in / out direction). Furthermore, the hinge shaft and barrel may have a normal configuration, but the blade member may be equipped with a "moving mechanism that allows the door body to move in the in / out direction when the door body is closed." For example, in the mounting structure for the door body or door frame, the blade members may be made slidable (for example, by making the screw holes for mounting long holes), so that "when the door body is closed, it is allowed to move in the direction along the entrance and exit direction."

[0028] In this embodiment, the "movement limiting mechanism that limits the relative movement until a predetermined pressure is applied to the door body from the outside" is an example of one in which the surface that comes into contact with the hinge axis inside the axle hole of the axle cylinder is an inclined surface, but the present invention is not limited to this, and it may also be one in which, for example, a biasing means (spring, etc.) is provided inside the axle cylinder that biases the hinge axis toward the indoor side relative to the axle cylinder. Furthermore, a "movement limiting mechanism that limits the relative movement until a predetermined pressure is applied to the door body from the outside" can be provided to correspond to each of the above-mentioned "movement mechanisms." For example, in cases where the hinge shaft is attached to the blade member in a sliding manner in the in / out direction, or in cases where the blade member is slidable relative to the door body or door frame, a biasing means (such as a spring) that prevents the blade member from sliding toward the inside may be provided. In addition, the airtight packing (airtight member) may function as a "movement limiting mechanism." The elastic force of the airtight packing functions as a "movement limiting mechanism that limits the relative movement until a predetermined pressure is applied to the door body from the outside."

[0029] In this embodiment, the “movement limiting mechanism” is preferably an inclined surface that contacts the hinge shaft inside the shaft bore of the barrel, eliminating the need for user operation. However, the present invention is not limited to this. For example, the “movement limiting mechanism” may be implemented by providing a device that switches between a state in which relative movement between the barrel and the hinge shaft is limited and a state in which it is not limited. For example, a member that can be switched between protruding and non-protruding within the “slot” by user operation, and that protrudes to limit the movement of the hinge shaft within the slot, or a detachable attachment that fills the space within the slot (the space in FIG. 2(c)), may be provided. Such a switchable “movement limiting mechanism” can be configured to correspond to each of the above-described “movement mechanisms.” For example, in cases where the hinge shaft is attached to the blade member in a sliding direction relative to the door member, or where the blade member is slidable relative to the door body or door frame, a switchable or detachable movement limiting member that limits the sliding movement of the member toward the interior may be provided.

[0030] In this embodiment, an example is given in which the hinge shaft protrudes upward and the shaft cylinder opens downward to receive the hinge shaft, but the present invention is not limited to this, and for example, the present invention may be configured in which the hinge shaft protrudes downward and the shaft cylinder opens upward to receive the hinge shaft, etc. Also, in the embodiment, a so-called "removable hinge" is used as an example, but the present invention is not limited to this, and the concept of the present invention as understood from the above explanation can be applied to any hinge device, such as a flat hinge. The number of hinge devices for attaching the door body to the door frame may be any number that provides the required strength. When attaching the door body to the door frame using multiple hinge devices, some of the hinge devices may be attached upside down.

[0031] <Embodiment 2> FIG. 4 is a schematic diagram showing a door device 1′ of the second embodiment, and is a perspective view seen from the indoor side (showing a state in which the door is slightly open). Also, Figure 5 is a diagram showing the locking device and watertight device provided in the door device of this embodiment, where Figure 5(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 device 14 is provided), and Figure 5(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 5(a)). FIG. 6 is a horizontal cross-sectional view of the door body 11 in the vicinity where the waterproofing device is provided.

[0032] Like the first embodiment, the door device 1' of the second embodiment is an outward-opening door device installed at the entrance of a building to open and close an opening (the entrance to the building), such as the front door of a house, and the door body 11 is attached to the door frame 12 using the hinge device 14 described in the first embodiment. Components that are similar in concept to the first embodiment will be given the same reference numerals as the first embodiment, and their explanations will be simplified or omitted (note that the present embodiment and the first embodiment differ in that they are right-opening (right-hanging) and left-opening (left-hanging), but this does not result in a difference in concept). The door device 1' of this embodiment differs from embodiment 1 in that it is equipped with a locking device 15 that locks the opening and closing of the door body 11, and a water-stopping device 16 that improves the water-stopping function of the door device 1, and these will be mainly described below.

[0033] 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 16 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 movement of deadbolt 153 toward the indoor side to allow movement of deadbolt 153 toward the indoor side due to the water stop function described in embodiment 1 or the retraction operation of door body 11 (movement of the door body in the closing direction (indoor side)) by water stop device 16 described below. In other words, even when the water stop function of embodiment 1 or water stop device 16 is activated, hole 1511 of strike 151 exists in a range facing deadbolt 153, and is configured so that even when deadbolt 153 is advanced with the water stop function activated, it enters hole 1511 (does 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 5(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)."

[0034] As can be seen from FIG. 4, the waterproofing 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 Figure 5(a), the position of the receiving member 161 in the entry / exit 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 Figure 5(b), the deadbolt 153 of the locking device 15 and the hook member 163 of the water stop device 16 are positioned in approximately the same position in the entry / exit direction. 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 when applying the present invention, the relative placement positions of the two in the entry and exit directions can be any.

[0035] 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. 6, the side surface of the hanging member 163 facing outdoors (upper side in Fig. 6) is tapered. This tapered surface (inclined surface) 1631 is formed so that the dimension of the hanging member 163 in the entrance / exit 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."

[0036] 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.

[0037] 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 water stop function in which the door body is pressed by the water pressure described in the first embodiment can be obtained after the initial water stop. 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).

[0038] In this embodiment, the water stop device 16 is provided on the door leading side, but it is more preferable to provide a water stop device on the door trailing side (the side where the hinge device is located). The water stop function described in the first embodiment is exerted when a certain water pressure is applied, but providing the water stop device 16 can improve the water stop function even in the early stages when the water pressure is low.

[0039] 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.

[0040] 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.

[0041] 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 that allows the strike to slide in the entrance / exit direction (indoor side) by the required amount, or conversely, a deadbolt (such as a structure for mounting the case to the door body) that allows it to slide in the entrance / exit direction (outdoor side) by the required amount.

[0042] 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).

[0043] 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 can of course also be one that is integrated with a doorknob or latch bolt, etc.

[0044] In this embodiment, in addition to embodiment 1, an example is given in which a locking device and a water stop device are provided, but this is not limited to this, and it is also possible to apply only the concepts of the locking device or water stop device described above to embodiment 1. For example, it is possible to combine only the locking device described above with embodiment 1 without providing the watertight device described in embodiment 2. This prevents the locking device from reducing the effectiveness of the watertight function of embodiment 1. In other words, the watertight function of the hinge device of embodiment 1 prevents interference between the deadbolt and strike of the locking device when the door body moves toward the indoor side ("the locking device is provided with a deadbolt displacement tolerance mechanism that allows displacement of the position of the deadbolt as the door body moves in the in / out direction"). Furthermore, the locking device described in the second embodiment may not be provided, and only the waterproofing device described above may be combined with the first embodiment. [Explanation of symbols]

[0045] 1. Door device 11...door body 12...Door frame 13...Airtight packing (airtight material) 14...Hinge device 141...First blade member 142...Second blade member 143...Hinge axis 144...Shaft tube 1441...shaft hole 1442...Top inner surface (slanted surface) 14421...Second inclined surface 14422...First inclined surface

Claims

1. An outward-opening door device provided at the entrance of a building, Door frames and The door body and an airtight member disposed between the door frame and the door body; a hinge device with one hinge shaft that mounts the door body to the door frame so that it can be opened and closed, and that has a movement mechanism that allows the door body to move in a direction along the entrance / exit direction when the door body is closed; A door device comprising:

2. the hinge device includes two blade members, the hinge shaft that connects the two blade members so as to be able to open and close, and a shaft cylinder that rotatably receives the hinge shaft, 2. The door device according to claim 1, wherein the movement mechanism is configured to allow a change in the relative position of the hinge shaft and the shaft cylinder along a direction of entry and exit of the entrance.

3. 3. The door device according to claim 2, wherein the movement mechanism is configured by the shaft cylinder receiving the hinge shaft so as to be movable in a direction along the entry / exit direction.

4. 4. The door device according to claim 3, wherein the hole of the barrel has an elliptical shape in horizontal cross section with a major axis along the entry / exit direction.

5. 4. The door device according to claim 3, wherein the shaft cylinder is formed on one of the two blade members, and the blade member having the shaft cylinder is attached to the door body.

6. 6. The door device according to claim 1, further comprising a movement limiting mechanism that limits the movement of the door body until a predetermined pressure is applied to the door body from the outside.

7. The hinge shaft protrudes upward, the shaft cylinder has an opening downward to receive the hinge shaft, and an upper inner surface inside the shaft cylinder upper portion that abuts against an upper end of the hinge shaft, 6. The door device according to claim 3, wherein the upper inner surface has an inclined surface configured so that the axle tube is positioned on the outdoor side of its range of movement relative to the hinge shaft until a predetermined pressure is applied to the door body from the outdoor side.

8. 8. The door device according to claim 7, wherein the inclined surface has, in a vertical cross section along the entry / exit direction, a first inclined surface on the indoor side that becomes lower toward the interior and a second inclined surface on the outdoor side that becomes lower toward the exterior, and the second inclined surface is longer than the first inclined surface.

9. The door apparatus according to claim 8 , wherein an angle of the second inclined surface relative to the horizontal plane is smaller than an angle of the first inclined surface relative to the horizontal plane.

10. 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, 6. The door device according to claim 1, wherein the locking device comprises a deadbolt displacement allowing mechanism that allows displacement of the position of the deadbolt in association with movement of the door body in the entry / exit direction.

11. A water stopping device is provided which has 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, When the door body is closed and the hook member is inserted into the receiving member by protruding it, 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. The door device according to any one of claims 1 to 5.

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