Water-stopping shutter device

Abstract

To prevent a pressing member from tilting when an opening / closing body is pressed.SOLUTION: A water stop shutter device includes an opening / closing body 10 which closes an upper end side to-be-pressed portion 12a by bringing the lower end portion into pressure contact with a lower side fixed surface G when the upper end side to-be-pressed portion is pressed downward, a pressing member 60 which pivots from a position away from the opening / closing body 10 to one side in the thickness direction of the opening / closing body to the other side with respect to the one side and makes contact with the pressed portion 12a, a link mechanism 80 which supports the pressing member 60 so that the pressing member can pivot, and a pressing device 40 which presses downward the pressing member 60 in contact with the to-be-pressed portion 12a, the pressing member 60 being provided with a weight section 70 having a center of gravity on the other side of a support point by the link mechanism 80.SELECTED DRAWING: Figure 5

Description

[Technical Field]

[0001] The present invention relates to a water stop shutter device that closes an opening to prevent the flow of water. [Background technology]

[0002] Conventionally, this type of waterproof shutter device has included an opening / closing body made up of multiple panels stacked vertically, and a pressing mechanism that presses down the opening / closing body to watertightly press it against the floor surface or the like (see, for example, Patent Document 1). The pressing mechanism includes a pressing member that rotates and is pressed against the upper end of the opening / closing body, a link member that rotatably supports the pressing member, and a pressing device that presses the pressing member downward using a power cylinder, a piston rod, or the like. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent Publication No. 2023-28931 Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the above-mentioned conventional technology, as shown in FIG. 7, the pressing member 200 pressed by the pressing device 100 may come into contact with the outdoor side of the upper end surface of the opening / closing body 300, tilt, and become stuck, making it difficult to remove. Since the pressing member 200 is supported by two parallel link members 401, 402, theoretically it will rotate while maintaining a horizontal state without tilting, but in reality, play in the pivot support portion may cause rattle in the rotational direction, which may lead to the above-mentioned problems. [Means for solving the problem]

[0005] In view of the above problems, one aspect of the present invention is provided with the following configuration. A water-stop shutter device comprising: an opening / closing body that closes by pressing its lower end against a lower fixed surface when the pressed part on the upper end side is pressed downward; a pressing member that rotates from a position away from the opening / closing body to one side in the thickness direction of the opening / closing body to the other side relative to the one side and abuts the pressed part; a link mechanism that supports the pressing member to enable the rotation; and a pressing device that presses downward the pressing member that is in contact with the pressed part, wherein the pressing member is provided with a weight portion whose center of gravity is on the other side of the support point by the link mechanism. [Effects of the Invention]

[0006] Since the present invention is configured as described above, it is possible to prevent the pressing member from tilting when pressing the opening / closing body. [Brief explanation of the drawings]

[0007] [Figure 1] 1 is a front view of an example of a waterproof shutter device according to the present invention, viewed from the outdoor side. [Figure 2] FIG. 2 is a longitudinal cross-sectional view taken along line (II)-(II) in FIG. 1, showing the panel before closing by a two-dot chain line. [Figure 3] FIG. 4 is a perspective view showing an example of a mechanism for pressing an opening / closing body. [Figure 4] FIG. 2 is a perspective view showing an example of a pressing member and a weight portion. [Figure 5] 1A and 1B are side views of the main part of an example of a waterproof shutter device according to the present invention, showing in sequence how a pressing member rotates to press an opening / closing body. [Figure 6] FIG. 10 is a perspective view showing another example of a pressing member and a weight portion. [Figure 7] 10 is a side view of a main part of a conventional water stop shutter device, showing an example of a state in which a pressing member presses an opening / closing body. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0008] Next, an embodiment of the present invention will be described in detail with reference to the drawings. 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. Furthermore, the "opening / closing direction of the opening / closing body" refers to the sliding direction in which the opening / closing body divides or opens the space for the opening / closing operation.

[0009] The waterproof shutter device 1 is installed so that an opening portion of a building or the like is opened and closed by an opening / closing body 10. This watertight shutter device 1 comprises an opening / closing body 10 that closes by pressing its lower end against the opposing lower immovable surface G (e.g., the ground, floor, or door rail) when the upper pressure-receiving portion 12a is pressed downward, left and right guide rails 20, 20 that surround both ends of the opening / closing body 10 in the width direction with a concave cross section and guide it in the opening / closing direction, and an opening / closing body storage section 30 that stores and extends the opening / closing body 10 on the upper side (see Figure 1). Furthermore, this watertight shutter device 1 is equipped with pressing devices 40, 50 that generate pressing force, a pressing member 60 that rotates when pressed by one of the pressing devices 40, a weight portion 70 that increases the weight of this pressing member 60, and a link mechanism 80 that supports the pressing member 60 so that it can rotate.

[0010] The opening / closing body 10 is in a fully closed state when the panels 11, 12, which are sequentially fed out in the closing direction by the opening / closing body storage section 30, are stacked substantially vertically on the lower stationary surface G (see FIG. 2). The panels 11 and 12 are connected in the opening and closing direction by a panel connecting chain 14.

[0011] 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.

[0012] A seal portion 16 is integrally provided at the lower end of the panel 11. The seal portion 16 is made of an elastic material such as rubber or elastomer resin and is formed so as to cover the lower end portion of the panel 11 continuously in the width direction of the opening / closing body. This seal portion 16 is pressed against the lower immovable surface G or the upper end of the panel 11 in a watertight manner.

[0013] The uppermost panel 12 is made of substantially the same material as panel 11, but is configured to have a smaller height dimension than panel 11. The height dimension is set appropriately depending on the height dimension of the opening that is opened and closed by the opening / closing body 10, etc. The upper end of the panel 12 functions as a pressed portion 12 a that is pressed downward by the pressing member 60 . The pressed portion 12a is the surface at the top end of the opening / closing body 10, and in the illustrated example, is formed in a flat shape that is continuous across the opening / closing body thickness direction and the opening / closing body width direction.

[0014] Support shafts 13 are provided at both ends of each of the panels 11 and 12 in the width direction so as to protrude in the width direction of the opening / closing body (see FIG. 2). The tip end of the support shaft portion 13 is inserted into a panel connecting chain 14, and a roller is rotatably supported at the tip end thereof. The support shaft 13 is suspended from a storage rail 33 in the opening / closing body storage section 30 and guided in the front-rear direction.

[0015] The panel connecting chain 14 is a so-called roller chain used for power transmission, etc., and connects all of the panels 11, 12 by inserting the support shafts 13 at predetermined intervals along its length. This panel connecting chain 14 is hung on the upper side of the sprocket 31 inside the opening / closing body storage section 30.

[0016] The guide rail 20 is formed to have a concave or U-shaped cross section so as to surround the widthwise end of the opening / closing body 10 in the closed state. The guide rail 20 is formed in an elongated shape extending from the lower stationary surface G to the opening / closing body storage section 30. A thickness direction pressing mechanism (not shown) that is actuated by the power of pressing devices 50, 50 (see FIG. 1) on both ends of the opening / closing body in the width direction is provided inside the guide rail 20. This thickness direction pressing mechanism presses the opening / closing body 10 in the closed state from the outdoor side to the indoor side, pressing it against the inner surface of the guide rail 20 in a watertight manner.

[0017] The opening / closing body storage section 30 is fixed above the opening that is opened and closed by the opening / closing body 10 to an immovable surface W (for example, a wall surface) of 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 supports a base 30a fixed to a fixed surface W, a sprocket 31 with a panel connecting chain 14 wound around the upper side, a drive mechanism 32 that rotates this sprocket 31 in both directions, and a storage rail 33 that suspends the support shaft portions 13 of the panels 11 and 12 and guides them in the forward and backward directions.

[0018] The base body 30a integrally comprises a support frame 30a1 that supports the pressing devices 40 and 50 described later, and a case portion 30a2 that houses and supports the sprocket 31, drive mechanism 32, storage rail 33, etc., and is fixed to a fixed surface W.

[0019] 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.

[0020] The drive mechanism 32 is configured to transmit the rotational force of an electric motor, which is a drive source, to the sprocket 31 via a power transmission mechanism such as a chain and a sprocket.

[0021] A plurality of pressing devices 40, 50 are arranged at intervals in the width direction of the opening / closing body (see FIG. 1). Each pressing device 40 (or 50) is supported by a support frame 30a1 fixed to the stationary surface W.

[0022] One of the pressing devices 40 is a device that presses the pressing member 60 downward until it abuts against the upper end of the opening / closing body 10, and then further presses the pressing member 60 downward. Two pressing devices 40 are provided so as to press both ends of the pressing member 60 in the longitudinal direction. These two pressing devices 40, 40 are controlled so as to synchronize the advancement and retreat of the rods 42, 42.

[0023] Each pressing device 40 comprises a cylindrical main body 41 supported on the support frame 30a1 so that its vertical position can be adjusted, a rod 42 fitted into the main body 41 like a piston so as to move back and forth relative to the main body 41, and a driving source 43 (e.g., an electric motor) for moving the rod 42 forward (see Figure 3). The power of the driving source 43 is used to move the rod 42 forward to generate a pressing force, or to move the rod 42 backward to release the pressing force (see Figures 3 and 5).

[0024] The base end side of the main body 41 is supported by a movable bracket 45 relative to the support frame 30a1 so that its vertical position can be adjusted and it can rotate.

[0025] As shown in FIG. 3, the support frame 30a1 is an elongated member having a concave cross section that is continuous in the vertical direction.

[0026] The movable bracket 45 is fitted inside the support frame 30a1 so that its vertical position can be adjusted, and is fixed by fasteners such as bolts. The movable bracket 45 has a pressing device support portion 45a at its upper end that protrudes from the support frame 30a1 toward the indoor side. The pressing device support portion 45a pivotally supports the main body 41 of the pressing device 40 so that it can rotate freely.

[0027] The movable bracket 45 also has, at its lower end, a link member support portion 45b that constitutes a link mechanism 80, which will be described later. The link member support portion 45b pivotally supports the base ends of the first link member 81 and the second link member 82 of the link mechanism 80 so as to be freely rotatable.

[0028] The other pressing device 50 is provided laterally spaced apart in the width direction of the opening / closing body with a plurality of pressing devices 40 therebetween (see FIG. 1). Each pressing device 50 has a mechanism substantially similar to that of the pressing device 40, and operates the thickness direction pressing mechanism (not shown) in the guide rail 20 by its pressing force.

[0029] The pressing member 60 rotates from a position away from the opening / closing body 10 toward one side in the thickness direction of the opening / closing body (toward the outside according to FIG. 5) to the other side (toward the inside according to FIG. 5) and comes into contact with the pressed portion 12a at the upper end of the opening / closing body 10 in the fully closed state. 4, the pressing member 60 integrally comprises a long pressing body 61 extending in the width direction of the opening / closing body, rod attachment parts 62 provided on the upper surface of one end side and the other end side of the pressing body 61, and link member attachment parts 63 provided on the exterior side surface of one end side and the other end side in the longitudinal direction of the pressing body 61. A weight part 70, which will be described later, is fixed integrally to the pressing member 60.

[0030] The pressing body 61 is an angle-shaped member having a horizontal piece 61a and a vertical piece 61b, with a rod mounting part 62 fixed to the upper surface of the horizontal piece 61a and a link member mounting part 63 fixed to the outdoor side of the vertical piece 61b. The pressing body 61 presses the pressed part 12a at the upper end of the opening / closing body 10 with the lower surface of the horizontal piece 61a.

[0031] Each rod mounting portion 62 has an axis portion 62a extending in the width direction of the opening / closing body and support portions 62b, 62b supporting the axis portion 62a on both sides, and the lower end of the support portion 62b is joined onto the horizontal piece 61a of the pressing body portion 61.

[0032] Of the support portions 62b, 62b that support the shaft portion 62a on both sides, the support portion 62b on the outer side in the width direction also functions as a link member pivot portion that pivotally supports a first link member 81, which will be described later. That is, a pivot hole 62b1 for pivotally supporting the first link member 81 is provided in this support portion 62b.

[0033] Each link member mounting portion 63 is formed in the shape of a protrusion that protrudes toward the exterior from the vertical piece 61b of the pressing body portion 61. Each link member mounting portion 63 is provided with a pivot hole 63a for pivotally supporting a second link member 82, which will be described later.

[0034] The weight portion 70 has a center of gravity on the indoor side of the four support points P1, P2, P3, and P4 of the link mechanism 80 so as to increase the weight of the portion of the pressing member 60 on the indoor side of these four support points. The support point P1 is the center of the pivot portion on the tip side of the first link member 81. The support point P2 is the center of the pivot portion of the first link member 81 on the base end side. The support point P3 is the center of the pivot portion on the tip side of the second link member 82. The support point P4 is the center of the pivot portion on the base end side of the second link member 82. According to the example shown in FIG. 5, the center of gravity of the weight portion 70 is located on the indoor side of the support point P1 on the tip side of the first link member 81.

[0035] The weight portion 70 is an elongated, angle-shaped member having a horizontal piece 71 and a vertical piece 72. The weight portion 70 is continuous in the width direction of the opening / closing body between the two pressing devices 40, 40, along the longitudinal direction of the pressing member 60 (see FIG. 3).

[0036] The center of gravity of this weight section 70 is located on the indoor side of the support point P1, and the horizontal piece 71 is overlapped with the horizontal piece 61a of the pressing member 60. The vertical piece 72 of this weight section 70 is provided on the indoor side of the support section 62b, protruding upward and in the shape of a long rib that continues in the width direction of the opening / closing body (see Figures 4 and 5).

[0037] The weight of the weight portion 70 is appropriately set so as to prevent the pressing device 50 from rotating in the counterclockwise direction in FIG. That is, when the pressing member 60 comes into contact with the pressed portion 12a, it attempts to rotate so that the upper side rotates toward the outside, but this rotation is suppressed by the weight of the weight portion 70.

[0038] The link mechanism 80 includes a first link member 81 and a second link member 82 located on the outdoor side of the first link member 81, and constitutes a parallel link mechanism.

[0039] Two first link members 81 are provided on both sides in the width direction of the opening / closing body, with the pressing main body portion 61 of the pressing member 60 interposed therebetween (see FIG. 3). Each first link member 81 has its base end pivotally supported by the link member support portion 45 b of the movable bracket 45 and its tip end pivotally attached to the support portion 62 b on the end side of the pressing member 60 .

[0040] Two second link members 82 are provided corresponding to the link member mounting portions 63, 63 on both sides of the pressing member 60, respectively. The base end side of each second link member 82 is pivotally supported on the link member support portion 45b of the movable bracket 45, on the outdoor side of the pivotal support portion of the first link member 81 (see FIG. 3). The tip side of each second link member 82 is pivotally attached to the link member mounting portion 63 of the pressing member 60.

[0041] In addition, the symbol 90 in Figure 2 is a deflection suppression device that moves a movable column 91 toward the center of the opening / closing body in the width direction and presses this movable column 91 against the indoor side of the opening / closing body 10 to suppress deflection of the opening / closing body 10.

[0042] <Action and effect> Next, the characteristic functions and effects of the waterproof shutter device 1 having the above-described configuration will be described in detail. When the closing operation by the drive mechanism 32 is initiated with the panels 11, 12 stored in the opening / closing body storage section 30, the multiple panels 11, 12 are sequentially fed downward from the opening / closing body storage section 30 and stacked on the lower stationary surface G. The opening / closing body 10, which is made up of the multiple panels 11, 12, then comes to rest in the fully closed state shown in FIG.

[0043] In this fully closed state, when the pressing devices 40, 50 are activated, the opening / closing body 10 is pressed vertically and horizontally by the pressing member 60 and the thickness-wise pressing mechanism (not shown), etc., and is watertightly pressed against the lower fixed surface G and also watertightly pressed against the guide rail 20.

[0044] To explain the vertical operation in detail, the pressing device 40 is operated by a signal and power from a control circuit (not shown), and moves the rod 42 opposite the main body 41 diagonally downward toward the indoor side (see Figures 5(a) and (b)). Then, the pressing member 60 connected to the front end of the rod 42 rotates in an arc from the upper outdoor side to the lower indoor side by the link mechanism 80, abutting against the pressed portion 12a at the upper end of the panel 12 (opening / closing body 10) and pressing the pressed portion 12a downward. According to the example shown in FIG. 5, the pressing member 60 presses the pressed portion 12a downward so as to include the edge of the pressed portion 12a on the outdoor side.

[0045] During this pressing, a rotational force may act on pressing member 60 in a direction that rotates the upper side toward the outdoors (counterclockwise in FIG. 5). However, the weight of weight portion 70 is applied to pressing member 60 on the indoor side of support point P1 so as to oppose this rotational force. Therefore, the rotational force of the pressing member 60 can be suppressed, and in turn, the pressing member 60 can be prevented from getting caught on the outdoor side of the opening / closing body 10.

[0046] Since the link mechanism 80 constitutes a parallel link mechanism, theoretically the pressing member 60 maintains a substantially horizontal state. However, in reality, rattle occurs in the rotational direction due to play in the pivotal support portions of the first link member 81 and the second link member 82. More specifically, the play is the play between the shaft and hole that fit together to form the pivot portion at each support point P1, P2, P3 or P4 of the first link member 81 or the second link member 82. This play is particularly useful when the two pressing devices 40, 40 are connected and synchronized by the pressing member 60, as in this embodiment.

[0047] Furthermore, when opening the opening / closing body 10, the pressing devices 40, 50 may be operated in the opposite direction by electrical operation via a control circuit or the like. To explain the vertical release operation in detail, when the pressing device 40 is operated in the reverse direction, the rod 42 facing the main body 41 is retracted obliquely upward toward the outdoor side. As the rod 42 retracts, the pressing member 60 rotates in an arc from the lower indoor side to the upper outdoor side, smoothly disengaging from the upper end (pressed portion 12a) of the opening-closing body 10. As a result, the vertical pressing force on the opening-closing body 10 is released.

[0048] <Other examples of pressing member and weight portion> In the waterproof shutter device 1 having the above-described configuration, the pressing member 60 can be replaced with a pressing member 60' shown in FIG.

[0049] A pressing member 60' shown in FIG. 6 is the same as the pressing member 60 described above, except that the pressing body 61 is replaced with a pressing body 61', and has a rib-shaped weight portion 61c integrally therewith.

[0050] More specifically, the pressing body 61' integrally comprises a horizontal piece 61a, a vertical piece 61b protruding upward from the outdoor end of the horizontal piece 61a, and a rib-shaped weight portion 61c protruding upward from the indoor end of the horizontal piece 61a. For example, a channel steel of a predetermined length may be used for the pressing body 61'.

[0051] Therefore, according to the pressing member 60' shown in FIG. 6, it is possible to obtain the same effects as the pressing member 60, and in addition, it is possible to provide a sturdy weight portion 61c.

[0052] In addition, according to the pressing member 60', the weight portion 61c is integral with the horizontal piece 61a, but as another example, it is also possible to configure the weight portion 61c as a separate body joined to the horizontal piece 61a.

[0053] <Other variations> According to the above embodiment, in the pressing member 60 shown in FIG. 4, the weight portion 70 may be made of the same material as the pressing member 60, but in a more preferred embodiment, the weight portion 70 may be made of a material having a higher density than the pressing member 60. That is, in this embodiment, for example, the pressing member 60 is made of steel, and the weight portion 70 is made of a material (for example, lead) having a higher density than steel. According to this configuration, the weight of the pressing member 60 on the indoor side can be effectively increased, and as a result, tilting of the opening / closing body 10 due to the pressing member 60 pressing against it can be effectively prevented.

[0054] According to the above embodiment, the opening / closing body 10 is composed of multiple panels 11, 12 of different types, but this opening / closing body 10 can also be composed of multiple panels of the same type, or of a single panel.

[0055] According to the above embodiment, the pressing member 60 rotates from a position away from the opening / closing body 10 toward the outdoor side toward the indoor side to abut against the pressed portion 12a, but as another example, it is also possible for the pressing member 60 to rotate from a position away from the opening / closing body 10 toward the indoor side toward the outdoor side to abut against the pressed portion 12a.

[0056] In the above embodiment, as a particularly preferred example, the link mechanism 80 is configured by a first link member 81, a second link member 82, etc., but as another example of this link mechanism 80, it is also possible to omit the second link member 82 and support the weight portion 70 only by the first link member 81. In this other example, the weight of the weight portion 70 is applied to the indoor side of the first link member 81 of the pressing member 60, so that the upper side of the pressing member 60 rotates toward the outdoor side, thereby preventing the pressing member 60 from rotating.

[0057] According to the above embodiment, the pressing device 40 is configured by the cylindrical main body 41 and the piston-like rod 42. However, other examples of the pressing device 40 include a mode in which the pressing member 60 is moved back and forth by a pinion and a rack, or a mode in which the pressing member 60 is moved back and forth by a linear drive mechanism using a linear motor or the like.

[0058] According to the above embodiment, multiple (two in the illustrated example) pressing devices 40 are connected by pressing members 60 (or 60'), but as another example, it is also possible for these multiple pressing members 60 to be separate from each other.

[0059] Furthermore, the present invention is not limited to the specific configurations described above, and can be modified as appropriate within the scope of the present invention.

[0060] <Summary> As described above, the above embodiments disclose the following inventions. (1) A water-stop shutter device (see Figures 1 to 6) comprising: an opening / closing body that closes by pressing its lower end against a lower immovable surface when the pressed part on the upper end side is pressed downward; a pressing member that rotates from a position away from the opening / closing body to one side in the thickness direction of the opening / closing body to the other side relative to the one side and abuts against the pressed part; a link mechanism that supports the pressing member to enable the rotation; and a pressing device that presses downward the pressing member that is in contact with the pressed part, wherein the pressing member is provided with a weight part whose center of gravity is on the other side of the support point by the link mechanism. (2) The water-stop shutter device described in (1) (see Figure 5) is characterized in that the weight of the weight portion is set so as to prevent the pressing member from rotating due to contact with the pressed portion. (3) The water stop shutter device according to (1) or (2) is characterized in that the weight portion is provided in the form of a rib that is integral with the pressing member (see Figs. 4 and 6). (4) The waterproof shutter device according to any one of (1) to (3), wherein the weight portion is formed of a material having a higher density than the pressing member. (5) the link mechanism includes a first link member and a second link member located on the one side of the first link member, and constitutes a parallel link mechanism; A waterproof shutter device described in any one of (1) to (4) (see Figures 3 and 5), characterized in that the center of gravity of the weight portion is located on the other side of the support point that supports the pressing member at the tip side of the first link member. (6) The waterproof shutter device according to any one of (1) to (5) (see Figs. 3 to 6), wherein the weight portion protrudes upward on the other side beyond the support point. (7) A water-stop shutter device according to any one of (1) to (6) (see Figure 3), characterized in that the pressing member is arranged along the width direction of the opening and closing body, two pressing devices are provided so as to press both ends of the pressing member in the width direction of the opening and closing body, and the weight portion is provided between the two pressing devices. [Explanation of symbols]

[0061] 1:Water stop shutter device 10: Opening and closing body 12a: Pressed part 20: Guide rail 30: Opening and closing body storage section 40: Pressing device 60: Pressing member 70: Weight 80: Link mechanism 81: First link member 82: Second link member P1,P2,P3,P4: Support points

Claims

1. an opening / closing body that closes by pressing a lower end portion against a lower fixed surface when a pressed portion on an upper end side is pressed downward; a pressing member that rotates from a position away from the opening / closing body toward one side in the thickness direction of the opening / closing body toward the other side relative to the one side and abuts against the pressed portion; a link mechanism that supports the pressing member to enable the rotation; a pressing device that presses the pressing member in contact with the pressed portion downward, A water stop shutter device characterized in that the pressing member is provided with a weight portion having a center of gravity on the other side of the support point by the link mechanism.

2. 2. The water stop shutter device according to claim 1, wherein the weight of the weight portion is set so as to prevent the pressing member from rotating due to contact with the pressed portion.

3. 2. The waterproof shutter device according to claim 1, wherein the weight portion is provided in the form of a rib integral with the pressing member.

4. 2. The waterproof shutter device according to claim 1, wherein the weight portion is formed of a material having a higher density than the pressing member.

5. the link mechanism includes a first link member and a second link member located on the one side of the first link member, and constitutes a parallel link mechanism; 2. The waterproof shutter device according to claim 1, wherein the center of gravity of the weight portion is located on the other side of the support point that supports the pressing member on the tip side of the first link member.

6. The waterproof shutter device according to claim 1, wherein the weight portion protrudes upward on the other side beyond the support point.

7. The pressing member is provided along the width direction of the opening / closing body, Two pressing devices are provided so as to press both ends of the pressing member in the width direction of the opening / closing body, The waterproof shutter device according to any one of claims 1 to 6, wherein the weight portion is provided between the two pressing devices.

Images