Water stop shutter device and method for manufacturing the water stop shutter device

Abstract

To improve water-tightness on the lower end side of a guide rail by a simple structure excellent in workability.SOLUTION: A water stop shutter device, including an opening / closing body 10 that performs a closing operation so as to partition a space and brings a lower end portion into contact with an opposed immovable surface G to fully close the space, and guide rails 20 on both sides erected on the immovable surface G so as to surround and vertically guide both end portions in the width direction of the opening / closing body 10, in which the opening / closing body 10 in a fully closed state is pressed against the immovable surface G and / or the guide rails 20 on both sides to partition the inside and outside of the opening / closing body 10 in a watertight manner, and an elastic watertight material 26 is sandwiched between the lower end portion of each guide rail 20 and the immovable surface G.SELECTED DRAWING: Figure 5

Description

[Technical Field]

[0001] The present invention relates to a waterproof shutter device that closes a body opening to prevent water from flowing through, and a method for manufacturing the waterproof shutter device. [Background technology]

[0002] Conventional inventions of this type include a shutter curtain that closes an opening using multiple panels stacked vertically, and guide rails that surround the left and right ends of the shutter curtain in a concave shape to guide it in the opening and closing direction (see, for example, Patent Document 1). In such conventional water-stop shutter devices, a recess is formed in an immovable surface such as the ground or floor, the lower end of the guide rail is inserted into this recess, and the gaps around it are filled with concrete or filler to prevent water from flowing through the gaps at the lower end of the guide rail. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2019-94774 [Patent Document 2] Japanese Patent Application Laid-Open No. 2010-37849 Summary of the Invention [Problem to be solved by the invention]

[0004] However, the above-mentioned conventional techniques require time-consuming work such as forming a recess in the immovable surface for erecting the guide rail, or filling the lower end of the guide rail with a filler or the like. [Means for solving the problem]

[0005] In view of the above problems, the present invention has the following configuration. The device is provided with an opening / closing body that performs a closing operation to separate a space and whose lower end abuts against an opposing immovable surface to fully close, and guide rails on both sides that are erected on the immovable surface so as to surround both widthwise ends of the opening / closing body and guide them in the up and down direction, and is configured so that the opening / closing body in the fully closed state is pressed against the immovable surface and / or the guide rails on both sides to watertightly separate the inside and outside of the opening / closing body, and an elastic watertight material is sandwiched between the lower end of each guide rail and the immovable surface. The fixed surface is one surface of a support plate provided to receive the lower end of the guide rail, the support plate being formed by butt-joining a plurality of plate materials, the elastic watertight material spanning the joints of the plurality of plate materials, and the support plate being formed by butt-joining a long first plate material that receives the lower end of the opening / closing body in a fully closed state and a part of the guide rail, and a second plate material that receives the other part of the guide rail. A water stop shutter device characterized by the above. [Effects of the Invention]

[0006] Since the present invention is configured as described above, it is possible to improve the watertightness of the lower end side of the guide rail with a simple structure that is easy to install. [Brief explanation of the drawings]

[0007] [Figure 1] 1 is a front view showing an example of a waterproof shutter device according to the present invention. [Figure 2] FIG. 2 is a cross-sectional view of the waterproof shutter device. [Figure 3] FIG. 2 is a cross-sectional view taken along the line (III)-(III) in FIG. [Figure 4] FIG. 10 is a plan view showing an example of a backing plate and an elastic watertight material. [Figure 5] 10 is a perspective view showing a part of the manufacturing procedure of the waterproof shutter device. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0008] This embodiment discloses the following features. The first feature is that it is a watertight shutter device comprising an opening / closing body that operates to close by dividing a space and whose lower end abuts against an opposing fixed surface to fully close, and guide rails on both sides that are erected on the fixed surface so as to surround both widthwise ends of the opening / closing body and guide them in the vertical direction, and is configured so that the opening / closing body in the fully closed state is pressed against the fixed surface and / or the guide rails on both sides to watertightly separate the inside and outside of the opening / closing body, and an elastic watertight material is sandwiched between the lower end of each guide rail and the fixed surface (see Figures 1 to 5).

[0009] As a second feature, the guide rail is formed to surround the widthwise end of the opening / closing body in a concave cross section, and the elastic watertight material is a member formed along the lower end of the guide rail so as not to interfere with the opening / closing body in a fully closed state (see Figure 3).

[0010] As a third feature, the fixed surface is one surface of a support plate provided to receive the lower end of the guide rail, the support plate being made up of multiple plate materials butt-jointed together, and the elastic watertight material spanning the joints of the multiple plate materials (see Figure 4).

[0011] As a fourth feature, the support plate is formed by connecting a long first plate material that supports the lower end of the opening / closing body in the fully closed state and a part of the guide rail, and a second plate material that supports the other part of the guide rail (see Figure 4).

[0012] As a fifth feature, the elastic watertight material is adhered to the immovable surface via an adhesive (see FIG. 5).

[0013] The sixth feature is a method for manufacturing the above-mentioned waterproof shutter device, which includes the steps of laying the elastic watertight material on the fixed surface and erecting the guide rail on the exposed surface of the laid elastic watertight material (see Figure 5).

[0014] <Specific embodiment> Next, specific embodiments having the above-mentioned features will be described in detail with reference to the drawings.

[0015] In this specification, the "thickness direction of the opening / closing body" refers to the thickness direction of the opening / closing body in the closed state, and the "width direction of the opening / closing body" refers to a direction that is approximately perpendicular to the opening / closing direction of the opening / closing body, but is not the thickness direction of the opening / closing body. Also, the "opening / closing direction of the opening / closing body" means the direction in which the opening / closing body slides to partition or open a space.

[0016] Furthermore, the "outer side in the width direction of the opening / closing body" refers to the direction toward the outside of the opening / closing body along the width direction of the opening / closing body. For example, if the guide rail on the right side is used as the reference, the outer side in the width direction of the opening / closing body is the right side. Additionally, the "inner side in the width direction of the opening / closing body" refers to the direction toward the inside of the opening / closing body along the width direction of the opening / closing body. For example, if the guide rail on the right side is used as the reference, the inner side in the width direction of the opening / closing body is the left side.

[0017] Additionally, "outside in the thickness direction of the opening / closing body" means the side in the direction away from the center of the thickness of the opening / closing body along the thickness direction of the opening / closing body. Additionally, "inside the opening / closing body in the thickness direction" means the side toward the center of the opening / closing body along the thickness direction of the opening / closing body.

[0018] The watertight shutter device 1 comprises an opening / closing body 10 that performs a closing operation to separate a space and whose lower end abuts against an opposing immovable surface G to be fully closed, guide rails 20 on both sides erected on the immovable surface G to surround both widthwise ends of the opening / closing body 10 and guide it in the up-down direction, and an opening / closing body storage section 30 that stores and extends the opening / closing body 10 on the upper side. This watertight shutter device 1 is installed so that an opening in the structural body of a building or the like is opened and closed using an opening / closing body 10, and in the fully closed state, the opening / closing body 10 is pressed tightly against the immovable surface G by a closing direction pressing device 40, and the opening / closing body 10 is pressed tightly against the guide rail 20 by a thickness direction pressing device 50, thereby separating the inside and outside of the opening / closing body 10 watertightly.

[0019] The opening / closing body 10 is in a fully closed state by stacking a plurality of panels 11, 12 that are successively fed out from the opening / closing body storage section 30 (see FIG. 2).

[0020] The opening / closing body 10 includes a plurality of panels 11, 12 and a panel connecting chain 14 connected to these panels 11, 12 (see FIG. 2). Of the multiple panels 11, 12, the panel 12 closest to the opening direction has a smaller dimension in the opening / closing direction than the other panels 11. The uppermost end of this panel 12 functions as a pressed portion 10a that is pressed by the opening / closing body storage portion 30.

[0021] The panel 11 is a rectangular plate-like member in a front view that is long in the width direction of the opening / closing body. The panel 11 is formed by pultrusion or extrusion molding a metal material into a frame-like vertical cross section having a cavity partitioned into upper and lower parts, as shown in FIG. The lower end of the panel 11 projects in a generally V-shaped vertical cross section over the entire length in the width direction of the opening / closing body, and a seal portion 16 is integrally provided on the projecting outer surface.

[0022] The seal portion 16 is made of an elastic material such as rubber or elastomer resin and has a V-shaped cross section along the lower end of the panel 11, and is joined to the lower end of the panel 11 over the entire length in the width direction of the opening / closing body.

[0023] Further, at the upper end of the panel 11, a recess 11a having a substantially V-shaped cross section is formed over the entire length in the width direction of the opening / closing body so as to fit into the seal portion 16. Support shafts 13 are provided on the upper side of the panel 11 so as to protrude from both ends of the opening / closing body in the width direction.

[0024] The uppermost panel 12 has a rectangular shape when viewed from the front, extending in an elongated manner in the width direction of the opening / closing body, and is smaller in height than the panel 11. Similar to the panel 11, the panel 12 is formed by pultrusion or extrusion molding a metal material into a frame-like vertical cross section having a continuous cavity therein in the width direction of the opening / closing body. Similar to the panel 11, the lower and upper end sides of this panel 12 are provided with a seal portion 16 and a support shaft portion 13. The upper end of the panel 12 is also provided with a recess 12a that continues across the width of the opening / closing body.

[0025] It is possible to omit panel 12 if the opening / closing body 10 having the desired height can be constructed using only a plurality of panels 11. In this case, panel 11 is located at the top, and the upper end of this panel 11 functions as the pressed portion 10a.

[0026] The support shaft portions 13 protrude outward in the width direction of the opening / closing body from both ends of each of the panels 11, 12 in the width direction (left and right direction in FIG. 1). The support shaft portion 13 is configured to rotatably support a roller on the tip side of a shaft-shaped member inserted through a panel connecting chain 14 .

[0027] The panel connecting chain 14 is a so-called roller chain used for power transmission etc., and has support shaft portions 13 rotatably inserted therethrough at predetermined intervals in the length direction. This panel connecting chain 14 connects all of the panels 11 and 12 in the vertical direction via support shaft portions 13, and its upper end side is hung on a sprocket 31 of the opening / closing body storage portion 30.

[0028] Furthermore, a guide shaft portion 15 is provided on the lower end side of each panel 11 (see FIG. 2). The guide shaft portion 15 is formed by rotatably supporting a roller on the tip end side of a shaft-shaped member that protrudes from the end portion of each panel 11 in the width direction. When each panel 11 is stored in the opening / closing body storage section 30, this guide shaft section 15 is engaged with and guided by the guide member 34 of the opening / closing body storage section 30, thereby suppressing vibration in the opening / closing body thickness direction. The guide shaft portion 15 may be omitted.

[0029] Each guide rail 20 surrounds the widthwise end of the opening / closing body 10 in the closed state, and is formed in an elongated shape extending from the immobile surface G to the opening / closing body storage section 30. Within the guide rail 20, there is provided a thickness-wise pressing device 50 that presses the opening / closing body 10 in the closed state from the outdoor side to the indoor side, and a receiving member 51 that receives the opening / closing body 10 pressed by this thickness-wise pressing device 50 from the indoor side.

[0030] The guide rail 20 illustrated in Figure 3 is formed with a generally concave or U-shaped cross section, having a flat outdoor side portion 20a located on the outdoor side of the opening / closing body 10, a flat indoor side portion 20b located on the indoor side of the opening / closing body 10, and a flat connecting portion 20c connecting the outdoor side portion 20a and the indoor side portion 20b on the outside in the width direction of the opening / closing body. In the illustrated example, the outdoor piece 20a and the connecting piece 20c are integrally formed with an L-shaped cross section. The indoor piece 20b is fastened to the connecting piece 20c with fasteners (for example, screws, bolts, rivets, etc.).

[0031] In the figure, reference numeral 21 denotes a sealant (for example, an elastic material such as rubber) sandwiched between the indoor side piece 20b and the connecting piece 20c in the vertical direction, sealing the gap between these members in a watertight manner. Furthermore, the symbol 22 denotes a sealing material (e.g., an elastic material such as rubber) sandwiched vertically between the outdoor side portion 20a and the body wall surface W, which seals the gap between the outdoor side portion 20a and the body wall surface W in a watertight manner. Furthermore, reference numeral 23 denotes a sealant that is filled from the outside into the gap between the outdoor-side piece 20a and the body wall surface W. This sealant 23 prevents water from entering the gap between the outdoor-side piece 20a and the body wall surface W from the outside.

[0032] In addition, an elastic watertight material 26 is sandwiched between the lower end of each guide rail 20 and the stationary surface G.

[0033] The immovable surface G is one surface (the upper surface in the illustrated example) of a receiving plate 24 provided to receive the lower end portions of the guide rail 20 and the opening / closing body 10.

[0034] The support plate 24 is made by butt-joining a plurality of plate materials. In more detail, the support plate 24 is made up of a long first plate member 24a that supports the lower end of the opening / closing body 10 in the fully closed state and a part of the guide rail 20, and a second plate member 24b that supports the other part of the guide rail 20, connected together (see Figure 4). The support plate 24 is laid so as to be in close contact with the ground or floor surface.

[0035] The first plate member 24a is formed in a long rectangular shape in a plan view, straddling the left and right guide rails 20, 20. The second plate member 24b is formed in a rectangular shape in a plan view and protrudes from one end side and the other end side of the first plate member 24a toward the outside. The first plate 24a and the second plate 24b are welded together at their opposing ends in the thickness direction of the opening / closing body, resulting in unevenness at the joint between the first plate 24a and the second plate 24b.

[0036] The elastic watertight material 26 is a plate-like member formed in a concave shape in plan view along the lower end of the guide rail 20 so as not to interfere with the opening / closing body 10 in the fully closed state. The elastic watertight material 26 is made of an elastic synthetic resin material such as rubber (for example, ethylene propylene rubber (EPDM)) or elastomer resin.

[0037] The elastic watertight material 26 is laid on the upper surface (immovable surface G) of the backing plate 24 so as to straddle the connecting portion between the first plate material 24a and the second plate material 24b, and is adhered to the upper surface with an adhesive material 27. The adhesive material 27 is provided over the entire lower surface of the backing plate 24 (see FIG. 5).

[0038] The adhesive 27 may be selected to have appropriate adhesive strength and waterproof properties depending on the materials of the elastic watertight material 26 and the backing plate 24. The adhesive 27 may be a fluid adhesive, double-sided tape, or the like.

[0039] This elastic watertight material 26 is formed in a generally concave or U-shaped plan view, having a flat first piece 26a that includes the entire lower end surface of the outdoor-side piece 20a, a flat second piece 26b that includes the entire lower end surface of the indoor-side piece 20b, and a flat third piece 26c that includes the entire lower end surface of the connecting piece 20c (see Figures 3 and 4).

[0040] Then, the guide rail 20 is erected on the exposed surface (upper surface) of the laid elastic watertight material 26. In this erected state, the outdoor side piece 20a of the guide rail 20 is pressed against the first piece 26a, the indoor side piece 20b is pressed against the second piece 26b, and the connecting piece 20c is pressed against the third piece 26c.

[0041] The thickness direction pressing device 50 (see FIG. 3) is a device that presses the opening / closing body 10 in the fully closed state toward the indoor side in the vertical direction. This thickness direction pressing device 50 is configured, for example, with a contact member that contacts the outdoor side of the opening / closing body 10, a link mechanism that moves the contact member in parallel toward the indoor side, and a drive source such as a motor.

[0042] The receiving member 51 (see FIG. 3) is an elongated member that is in contact with the entire vertical length of the opening / closing body 10 in the closed state. The receiving member 51 is made of an elastic material such as rubber or elastomer resin, and is in elastic contact with the indoor side of the opening / closing body 10 to prevent water from the outdoor side from passing through the guide rail 20 and entering the indoor side.

[0043] The opening / closing body storage section 30 is fixed to a wall surface of a building frame or the like that is the object on which the water stop shutter device 1 is to be installed. As shown in Figure 2, this opening / closing body storage section 30 is equipped with a sprocket 31 around which the panel connecting chain 14 is wound, a drive mechanism 32 (for example, consisting of a rotary motor, chain, sprocket, etc.) that electrically rotates the sprocket 31 in both directions, a storage rail 33 that suspends the panels 11 and 12 via the support shaft section 13 and guides them in the forward and backward directions, and a guide member 34 that guides the guide shaft section 15 on the lower end side of the panel 11 in the horizontal direction. In this opening / closing body storage section 30, the drive mechanism 32 rotates the sprocket 31 in one direction, thereby sequentially extending the stored panels 11, 12 to the outdoor side and performing a closing operation downward. In addition, the opening / closing body storage section 30 also rotates the sprocket 31 in the opposite direction using the drive mechanism 32, thereby performing an opening operation on the closed panels 11, 12, and storing them on the indoor side at the upper side. The opening / closing body storage section 30 may have the structure described in Patent Document 2, for example.

[0044] The closing direction pressing device 40 is configured by attaching a plurality of pressing units 40a at intervals in the width direction of the opening / closing body to immovable parts such as a case or frame that constitute the opening / closing body storage section 30 (see FIG. 1).

[0045] Each pressing unit 40a comprises a movable pressing portion 41 that moves toward and away from the pressed portion 10a at the upper end of the opening / closing body 10 from the opening direction side, a link mechanism 43 that moves the movable pressing portion 41 along a predetermined trajectory, an extension / contraction mechanism 44 that serves as a driving source for moving the movable pressing portion 41, and a support member that supports the link mechanism 43 and the extension / contraction mechanism 44 so that their positions can be adjusted in the opening / closing direction relative to an immovable portion. A long pressing spacer 42 is detachably attached to the movable pressing portions 41 of the pressing units 40a, spanning these units in the width direction of the opening / closing body. This pressing unit 40a lowers the movable pressing portion 41 and the pressing spacer 42 by driving the extension / contraction mechanism 44, pressing the lower end surface of the pressing spacer 42 against the pressed portion 10a, pressing the opening / closing body 10 downward and pressing the sealing portion 16 at the lower end of the opening / closing body 10 against the upper surface (fixed surface G) of the opposing receiving plate 24.

[0046] 1 and 3, reference numeral 71 denotes an obstacle sensor that detects when the optical path extending in the width direction of the opening / closing body is blocked by an obstacle. This obstacle sensor 71 uses a multi-optical axis sensor that forms a plurality of optical paths spaced apart in the vertical direction. This obstacle sensor 71 is fixed to a sensor bracket 72 that is arranged in parallel on the indoor side of the guide rail 20. The sensor bracket 72 has a groove 72a extending vertically on the inside widthwise of the opening / closing body 10, in which the obstacle sensor 71 is fixed and in which the power cord and signal wires of the obstacle sensor 71 are routed. The cords are covered and hidden by a cover member 73 attached to the groove 72a.

[0047] In the figure, reference numeral 60 denotes a deflection suppression device 60 that suppresses deflection of the opening / closing body 10 in the fully closed state due to water pressure. This deflection suppression device 60 is equipped with a movable column 61 that extends vertically in an elongated manner, and a guide mechanism 62 that suspends the movable column 61 and moves it in the width direction of the opening / closing body, and the movable column 61 moves from the end side to the center side in the width direction of the opening / closing body and presses it against the indoor side of the opening / closing body 10, suppressing deflection of the opening / closing body 10.

[0048] Therefore, with the watertight shutter device 1 configured as described above, even if water surges in from the outdoor side of the opening / closing body 10, the water can be prevented from passing through the guide rail 20 and entering the indoor side. To explain this waterproofing effect in detail, the seal portion 16 provided at the lower end of the opening / closing body 10 is in tight contact with the upper surface of the backing plate 24 between the opening / closing body 10 and the backing plate 24 . At the widthwise end of the opening / closing body 10, the indoor surface of the opening / closing body 10 is in close contact with the receiving member 51 (see FIG. 3). The lower end of each guide rail 20 is in close contact with the upper surface (immovable surface G) of the receiving plate 24 via an elastic watertight material 26 . Therefore, it is possible to prevent water from seeping from the outdoor side to the indoor side by wrapping around inside the guide rail 20, or from seeping from the outdoor side to the indoor side through a gap at the lower end of the guide rail 20.

[0049] Furthermore, with the watertight shutter device 1 and its manufacturing method configured as described above, there is no need for a process such as embedding the lower end of the opening / closing body 10 into a concrete surface; instead, it is sufficient to lay the support plate 24 and the elastic watertight material 26 on the ground or floor, erect the guide rail 20 on the exposed surface (top surface) of the elastic watertight material 26, and fasten and fix the guide rail 20 to an immovable part such as the wall surface W of the main body, which makes installation easy.

[0050] <Modification> According to the above embodiment, the support plate 24 is laid on the ground or floor surface, and the guide rail 20 is erected on the upper surface (immovable surface G) of this support plate 24 via the elastic watertight material 26. However, as another example, it is also possible to omit the support plate 24 from the above configuration, lay the elastic watertight material 26 directly on an immovable surface such as the ground or floor surface made of concrete, and erect the guide rail 20 on this elastic watertight material 26.

[0051] Furthermore, according to the above embodiment, as a particularly preferred example, the elastic watertight material 26 is formed in a concave shape in plan view that follows the lower end of the guide rail 20 so that the elastic watertight material 26 does not interfere with the opening / closing body 10, but as another example of the elastic watertight material 26, it is also possible to form it in a rectangular shape in plan view that includes the entire lower end of the guide rail 20.

[0052] Furthermore, according to the above embodiment, the support plate 24 is formed from two plates, the first plate 24a and the second plate 24b, but other examples of the support plate 24 include a form formed from a single plate, or a form formed integrally from three or more plate materials.

[0053] The present invention is not limited to the above-described embodiments, and can be modified as appropriate within the scope of the present invention. [Explanation of symbols]

[0054] 10: Opening and closing body 11,12: Panel 20: Guide rail 24: Support plate 24a: First plank 24b: Second plank 26: Elastic watertight material 30: Opening and closing body storage section 40: Closing direction pressing device 50: Thickness direction pressing device G:Fudo surface

Claims

1. The device is provided with an opening / closing body that performs a closing operation to separate a space and whose lower end abuts against an opposing immovable surface to fully close, and guide rails on both sides that are erected on the immovable surface so as to surround both widthwise ends of the opening / closing body and guide them in the up and down direction, and is configured so that the opening / closing body in the fully closed state is pressed against the immovable surface and / or the guide rails on both sides to watertightly separate the inside and outside of the opening / closing body, An elastic watertight material is sandwiched between the lower end of each guide rail and the stationary surface, the fixed surface is one surface of a receiving plate provided to receive the lower end of the guide rail, the receiving plate being formed by butt-joining a plurality of plate members; The elastic watertight material spans the connection portions of the plurality of plate materials, The receiving plate is formed by butting together an elongated first plate member that receives the lower end of the opening / closing body in a fully closed state and a portion of the guide rail, and a second plate member that receives the other portion of the guide rail. A water stop shutter device characterized by the above.

2. The guide rail is formed to surround the width direction end of the opening / closing body so as to have a concave cross section, 2. The waterproof shutter device according to claim 1, wherein the elastic watertight material is a member formed along the lower end of the guide rail so as not to interfere with the opening and closing body when fully closed.

3. 3. The waterproof shutter device according to claim 1, wherein the elastic watertight material is adhered to the immovable surface via an adhesive.

4. A method for manufacturing a waterproof shutter device according to any one of claims 1 to 3, A method for manufacturing a waterproof shutter device, comprising the steps of laying the elastic watertight material on the fixed surface and erecting the guide rail on the exposed surface of the laid elastic watertight material.

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