Opening and closing device

Abstract

To provide an opening / closing device capable of improving a water cut-off function without requiring a device as a member other than the opening / closing device.SOLUTION: The opening and closing device is provided at an entrance of a building, and includes an opening and closing body 11, a frame body 12 for attaching the opening and closing body 11 to a skeleton of the building in an openable and closable manner, an airtight member 13 arranged between the opening and closing body 11 and the frame body 12, and a thickness variation mechanism 15 for varying a thickness of the opening and closing body 11.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to an opening and closing device provided at an entrance to 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 opening and closing 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 an opening and closing device that can improve water stopping function without requiring a device as a separate member from the opening and closing device. [Means for solving the problem]

[0006] (Configuration 1) An opening and closing device installed at the entrance of a building, comprising: an opening and closing body; a frame body for attaching the opening and closing body to the building's main body so that the opening and closing body can be opened and closed; an airtight member arranged between the opening and closing body and the frame body; and a thickness variation mechanism for varying the thickness of the opening and closing body.

[0007] (Configuration 2) The opening and closing device of configuration 1 is configured such that an engagement pressure is generated that acts to improve the contact force between the opening and closing body having the thickness variation mechanism, the airtight member, and the frame body by increasing the thickness of the opening and closing body using the thickness variation mechanism.

[0008] (Configuration 3) 3. The opening and closing device according to claim 1, wherein the thickness variation mechanism is configured to vary the thickness of the lower side of the opening and closing body.

[0009] (Configuration 4) An opening and closing device described in any of configurations 1 to 3, wherein the thickness variation mechanism includes a movable water stop member that is movably mounted in a step recess formed on the indoor-facing side of the lower part of the opening and closing body in the thickness direction of the opening and closing body, and an expansion mechanism that expands the gap between the step recess and the movable water stop member.

[0010] (Configuration 5) The opening and closing device described in configuration 4, wherein the expansion mechanism comprises an operating unit and a drive member that is provided between the step recess and the movable water stop member and that rotates in response to operation of the operating unit to change the dimension in the thickness direction, thereby expanding the gap between the step recess and the movable water stop member.

[0011] (Configuration 6) 6. The opening and closing device according to configuration 5, wherein the drive member is provided at least at a height that corresponds to a lower portion of the movable waterstop member.

[0012] (Configuration 7) The opening and closing device according to configuration 5 or 6, wherein the operating portion is provided at a height that corresponds to the upper portion of the movable waterstop member.

[0013] (Configuration 8) An opening and closing device described in any one of configurations 4 to 7, wherein the movable water stop member is a tray-shaped member having an indoor-side flat surface and a side surface that rises toward the outdoor side at the outer periphery of the indoor-side flat surface.

[0014] (Configuration 9) An opening and closing device described in any one of configurations 4 to 8, wherein when the movable water stop member is moved to the outdoor side, the indoor side plane is configured to be approximately flush with the indoor side of the opening and closing body above it. [Effects of the Invention]

[0015] According to the opening and closing device of the present invention, it is possible to improve the water stop function without requiring a device as a separate member from the opening and closing device. [Brief explanation of the drawings]

[0016] [Figure 1] 1 is a schematic cross-sectional view showing a door device (water stop function not activated) according to an embodiment of the present invention; [Figure 2] FIG. 1 is a schematic exploded perspective view showing a thickness variation mechanism of a door device according to an embodiment; [Figure 3] Schematic cross-sectional view showing a door device (water stop function activated) according to an embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0017] 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.

[0018] FIG. 1 is a schematic diagram showing a state in which the waterproofing function of a door device according to an embodiment of the present invention is not activated, where FIG. 1(a) is a schematic vertical cross-sectional view of the lower side of the door device, and FIG. 1(b) is a schematic horizontal cross-sectional view. Fig. 3 is a similar schematic cross-sectional view showing the state in which the water stop function is activated, Fig. 3(a) is a schematic vertical cross-sectional view of the lower side of the door device, and Fig. 3(b) is a schematic horizontal cross-sectional view. Fig. 2 is a perspective view showing the thickness variation mechanism (lower side of the door body) with the water stop plate removed. In the following description, the vertical direction of the door device in its installed state (vertical direction in FIG. 1(a)) will be referred to as the vertical 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 (upper side in FIG. 1(b)) to outdoors (lower side in FIG. 1(b)) (or vice versa) (vertical direction in FIG. 1(b)) will be referred to as the entrance / exit direction. The thickness direction of the door body (opening / closing body) is the left-right direction in FIG. 1(a) and the vertical direction in FIG. 1(b) (however, the thickness direction of the door body (opening / closing body) is not a fixed direction on the drawing, but changes direction on the drawing as the door body (opening / closing body) is opened / closed (rotated).

[0019] The door device 1 of this embodiment is an outward-opening door device (opening and closing device) that is installed at the entrance of a building in order to open and close an opening (building entrance) such as the entrance of a house, and as shown in FIG. A door body 11 which is an opening and closing body, a door frame 12 that is a frame for attaching the door body (opening / closing body) 11 to the building frame so that it can be opened and closed; an airtight packing 13 that is an airtight member disposed between the door body 11 and the door frame 12; a hinge 14 that mounts the door body 11 to the door frame 12 so that the door body 11 can be opened and closed; a thickness variation mechanism 15 that varies the thickness (of the lower side) of the door body 11; It is equipped with:

[0020] The door body 11 has a stepped recess 111 on the side of its lower portion facing the indoor side, in which the thickness varying mechanism 15 is provided. That is, as can be seen from Figure 2, the indoor side of the lower portion of the door body 11 has a shape in which it is cut out. The depth of the stepped recess 111 (the dimension in the thickness direction of the door body 11) is formed to be approximately the same dimension as the thickness of the thickness variation mechanism 15 (waterstop 151) described below. Therefore, as can be seen from Figure 1 (a), the waterstop 151 is configured so that when the water stopping function is not activated (when the waterstop 151 has not moved toward the indoor side), the indoor side plane of the waterstop 151 is approximately flush with the indoor side of the door body 11 above it. Other than the part having the shape described above (the lower part being cut out on the indoor side), the door body 11 is the same as any door body used in conventional door devices (any door body can be provided with a step recess), so further explanation of the door body 11 will be omitted here.

[0021] The door frame 12 provided for installing the door body 11 in an opening such as a front door, and the hinges 14 for attaching the door body 11 to the door frame 12 so that it can be opened and closed, are similar to conventional door frames and hinges, and any door frame (door frame corresponding to the door body) and hinges can be used, so detailed explanations will be omitted here. Furthermore, the airtight packing 13, which functions to improve the airtightness between the door body 11 and the door frame 12 or as a door stop and is made of an elastically deformable material such as rubber, may be the same as conventionally used airtight packing (airtight rubber). Since any airtight material that functions to improve the airtightness between the door body and the door frame can be used, a detailed description thereof will be omitted here. It is of course possible to use a packing with higher watertightness rather than simply using the same airtight packing as conventionally used in door devices. Furthermore, a watertight packing may be additionally provided in addition to the normal airtight packing. The watertight packing may be provided at least in a position opposite the waterstop 151 and may seal the bottom edge and both adjacent edges (in a U-shape).

[0022] The thickness variation mechanism 15 increases the thickness of the door body 11, thereby generating an engagement pressure that acts to improve the mutual contact force between the door body (opening / closing body) 11, the airtight gasket (airtight member) 13, and the door frame (frame body) 12. The thickness varying mechanism 15 of this embodiment is provided on the lower side of the door body 11 and is configured to vary the thickness of the lower side of the door body 11. The thickness varying mechanism 15 is provided in the stepped recess 111 of the door body 11. A water stop plate (movable water stop plate member) 151 that is provided so as to be movable in the thickness direction of the door body 11; an expansion mechanism 152 that expands the gap between the stepped recess 111 and the waterstop 151; It has the following characteristics.

[0023] As can be seen from Fig. 2, waterstop (movable waterstop member) 151 is a tray-shaped member having an indoor-side flat surface and side surfaces that rise up toward the outdoor side at the outer periphery of the indoor-side flat surface. The tray shape gives waterstop 151 a certain level of rigidity. A hole 1511 is formed in the indoor-side flat surface, in which an operating lever 1521, which will be described below, is installed. The outer shape and dimensions of the waterstop 151 are approximately the same as those of the stepped recess 111 (the portion cut out in the door body 11). Therefore, in the installed state where the waterstop function described below is not being performed, the outer shape of the door body including the waterstop 151 is approximately the same as that of a normal door body. Therefore, as described above, it can be used with any general door frame or airtight packing. 2 indicates the position facing the airtight packing 13 (the position where the airtight packing 13 comes into contact). The indoor-side flat surface of the waterstop is formed in a shape and size that allows it to be placed at least in a position facing the airtight packing (airtight member). Slide fittings 1532 are attached to the inner surface of waterstop 151 at two locations, top and bottom, approximately in the center in the width direction, and are slidably attached to their counterparts, slide fittings 1531, which are attached to the side of step recess 111. In this way, waterstop 151 is attached to door body 11 so as to be movable in the thickness direction of door body 11.

[0024] The expansion mechanism 152 is An operating lever (operating part) 1521, a driving member 1522 provided between the stepped recess 111 and the water stop plate (movable water stop plate member) 151, which rotates in response to the operation of the operating lever 1521; A connecting rod 1523 that links the drive of the drive members 1522 provided at two locations, upper and lower, It has.

[0025] The operating lever (operating portion) 1521 is rotatably attached to the stepped recess 111 via a mounting bracket 154, and is attached through a hole 1511 in the water stop plate 151 so as to be operable by the user. In addition, the operating lever 1521 is pivotally supported by an upper driving member 1522 and a connecting rod 1523, and is configured so that, when the operating lever 1521 is operated, the upper driving member 1522 and the lower driving member 1522 connected to the connecting rod 1523 are rotated. The operating levers 1521 are provided on the left and right sides of a pair of left and right drive members 1522 and connecting rod 1523, respectively, and are provided at positions on the upper side of the water stop plate 151. The thickness variation mechanism 15 is provided on the lower side of the door body 11, but by providing the operating lever 1521 on the upper side (not at the bottom), user operability (accessibility) is improved.

[0026] The drive members 1522 are arranged at locations that are approximately the four corners of the water stop plate 151, and the upper drive member 1522 is rotatably attached to the step recess 111 via left and right mounting brackets 154, and the lower drive member 1522 is rotatably attached to the step recess 111 via left and right mounting brackets 155. The drive member 1522 has a shape that changes the thickness dimension of the door body 11 when it rotates in response to the operation of the operating lever 1521, thereby expanding the gap between the step recess 111 and the water stop plate 151.

[0027] As can be seen from Figure 1 (when the water stop function is not activated), the thickness variation mechanism 15 configured as described above is normally in a position where the operating lever 1521 fits into the hole 1511 of the water stop plate 151 (roughly flush with the indoor side of the water stop plate 151), and in this state, the water stop plate 151 is in the storage position (outdoor side), and the indoor side of the water stop plate 151 and the door body 11 above it are roughly flush with each other. On the other hand, when the water stop function is to be exercised in the event of a flood, as can be seen from Figure 3 (water stop function activated), by pulling the operating lever 1521, the upper drive member 1522 and the lower drive member 1522 connected to the connecting rod 1523 rotate, thereby pressing the water stop plate 151 so that it moves toward the indoor side (the left side in Figure 3(a) and the upper side in Figure 3(b)). The door body 11 is fixed to the door frame 12 at the door tail side by hinges 14 so as not to move in the entrance / exit direction, and the door front side is locked so that the door body cannot be opened (so as not to move in the entrance / exit direction) by the deadbolt of the locking device engaging with the strike (not shown) or the latch bolt of the doorknob engaging with the latch receiver (not shown) (as any locking device or doorknob can be used, explanation of the locking device and doorknob will be omitted here). In this state where the door body 11 cannot move toward the outdoors relative to the door frame 12, when the water stop plate 151 is pressed to move toward the indoor side, this acts to improve the seal between the water stop plate 151, the airtight gasket 13, and the door frame 12, thereby improving the water stop function. In the figure, the airtight gasket 13 is shown overlapping the water stop plate 151 without being deformed, but in reality the airtight gasket 13 is compressed and deformed, increasing the adhesion between them. In addition, when the water stop function is released (when the operating lever 1521 is returned to its original position), a biasing means (for example, a spring provided on the inside of the water stop plate 151 that applies a pulling force between the water stop plate 151 and the step recess 111) may be provided to bias the water stop plate 151 to return to the storage position (outdoor side).

[0028] As described above, according to the door device 1 of this embodiment, it is possible to improve the waterproofing function without requiring a device as a separate member from the door device. Furthermore, the operation to activate the water stop function is a simple operation of simply pulling the operating lever 1521, and since it can be operated indoors, it is highly convenient.

[0029] In this embodiment, the thickness variation mechanism is described as having the mechanism described above, but the present invention is not limited to this, and the thickness variation mechanism may use any mechanism that can generate an engagement pressure that acts to improve the contact force between the opening and closing body (movable waterstop member), airtight member, and frame body by varying the thickness of at least a portion of the opening and closing body.

[0030] In this embodiment, an example is given in which the thickness variation mechanism is provided on the lower side of the door body (opening / closing body) (varying the thickness on the lower side), but the present invention is not limited to this, and for example, the thickness variation mechanism may be provided on the entire surface of the opening / closing body (varying the thickness overall). However, for example, if a building has openings such as windows that have not been waterproofed, there is little point in the door device waterproofing up to that height, so a thickness variation mechanism can be provided so that the waterproof function is only obtained up to the required height.

[0031] In this embodiment, the drive members 1522 are positioned at approximately the four corners of the water stop 151, which is preferable because it allows the water stop 151 to be pressed relatively evenly against the airtight gasket 13, but the present invention is not limited to this, and any number of drive members may be provided (for example, if the water stop has a relatively high rigidity, there may be one drive member, or more drive members may be provided). However, from the viewpoint of improving the initial water stop function in the event of a flood, it is preferable that the driving member is provided at a height that corresponds to at least the lower part of the waterstop (movable waterstop member), so that the pressing force is efficiently transmitted to the lower end of the waterstop.

[0032] In this embodiment, an outward-opening door device is described as an example of an opening and closing device, but the present invention is not limited to this, and the concept of the present invention described above can be applied to inward-opening door devices as well as opening and closing devices such as sliding doors (any opening and closing device comprising an opening and closing body, a frame body for attaching the opening and closing body to the building frame so that it can be opened and closed, and an airtight member arranged between the opening and closing body and the frame body). [Explanation of symbols]

[0033] 1...Door device (opening and closing device) 11...Door body (opening and closing body) 111...Step recess 12...Door frame (frame body) 13...Airtight packing (airtight material) 15...Thickness fluctuation mechanism 151...Water stop plate (movable water stop plate member) 152...Extension mechanism 1521...Operating lever (operating part) 1522...Drive member

Claims

1. An opening and closing device provided at an entrance to a building, An opening and closing body, a frame body for attaching the opening / closing body to a building frame so that the opening / closing body can be opened and closed; an airtight member disposed between the opening / closing body and the frame body; a thickness variation mechanism that varies the thickness of the opening / closing body; An opening and closing device comprising:

2. 2. The opening and closing device according to claim 1, wherein the thickness of the opening and closing body is increased by the thickness variation mechanism, thereby generating an engagement pressure that acts to improve the contact force between the opening and closing body equipped with the thickness variation mechanism, the airtight member, and the frame body.

3. The opening and closing device according to claim 2 , wherein the thickness varying mechanism is configured to vary the thickness of a lower side of the opening and closing body.

4. The thickness variation mechanism is a movable waterstop member provided in a stepped recess formed on a side surface facing the indoor side of the lower part of the opening / closing body so as to be movable in a thickness direction of the opening / closing body; an expansion mechanism that expands the gap between the stepped recess and the movable waterstop member; The opening and closing device according to claim 3 ,

5. The expansion mechanism is An operation unit; a driving member that is provided between the stepped recess and the movable waterstop member, and that rotates in response to operation of the operating unit to change the dimension in the thickness direction, thereby expanding the gap between the stepped recess and the movable waterstop member; The opening and closing device according to claim 4 ,

6. The opening and closing device according to claim 5 , wherein the drive member is provided at a height that is at least a lower part of the movable waterstop member.

7. The opening and closing device according to claim 5 or 6, wherein the operating portion is provided at a height that corresponds to an upper portion of the movable waterstop member.

8. 7. The opening and closing device according to claim 4, wherein the movable waterstop member is a tray-shaped member having an indoor-side flat surface and a side surface that rises toward the outdoor side at the outer periphery of the indoor-side flat surface.

9. The opening and closing device according to claim 8, wherein the movable water stop member is configured so that when moved to the outdoor side, the indoor side plane is approximately flush with the indoor side of the opening and closing body above it.

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