Switchgear

Abstract

To provide a new mechanism for increasing a degree of blockage of an opening by an opening / closing body.SOLUTION: An opening / closing device 1 for opening / closing an opening 2 formed on a wall face partitioning an indoor side and an outdoor side comprises: an opening / closing body 11 that opens / closes the opening 2; a side-face structure part 12 provided on the wall face around the opening for holding the opening / closing body 11; a seal member 16 provided in a position between the side-face structure part 12 and the opening / closing body 11 for improving a degree of sealing of the opening 2 by the opening / closing body 11; a link mechanism 157 whose displacement in a horizontal direction changes in a bent state and in an extended state; and a rod bar that makes the link mechanism 157 become extended by pressing a link portion of the link mechanism 157 downward. When the link mechanism 157 becomes extended, the opening / closing body 11 is pressed against the seal member 16.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to an opening and closing device that opens and closes an opening formed in a wall surface that separates an indoor space from an outdoor space. [Background technology]

[0002] An opening formed in a wall separating the indoors from the outdoors is equipped with an opening / closing device for opening and closing the opening. Patent documents 1 and 2 disclose technologies for preventing water from entering the indoors during floods by increasing the degree to which the opening / closing device closes the opening. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 6317126 [Patent Document 2] Patent No. 6554566 Summary of the Invention [Problem to be solved by the invention]

[0004] The technology disclosed in Patent Document 1 requires the steel rod to be pulled up, based on the technical idea of ​​preventing compressive force from acting on the operating rod. However, in addition to the load required to press the opening / closing body, the weight of each component is also applied, so a relatively large force is required to pull up the steel rod. In the technology disclosed in Patent Document 2, due to its structure, the distance that the steel rod (push-pull rod) moves in the forward-backward direction (from outside to inside the room) tends to be relatively large, which tends to increase the stress on each component (or requires a mechanism to prevent such stress from occurring).

[0005] In view of the above, an object of the present invention is to provide a new mechanism for increasing the degree to which an opening is closed by an opening / closing body. [Means for solving the problem]

[0006] (Configuration 1) An opening and closing device for opening and closing an opening, comprising: an opening and closing body for opening and closing the opening; a side structure provided around the opening to hold the opening and closing body; a sealing member provided at a position between the side structure and the opening and closing body to improve the degree of sealing of the opening by the opening and closing body; a link mechanism whose horizontal displacement amount changes between a bent state and an extended state; and a rod that extends the link mechanism by pushing downward a link portion of the link mechanism, wherein the opening and closing device is characterized in that when the link mechanism is extended, the side structure or the opening and closing body is pressed against the sealing member.

[0007] (Configuration 2) The opening and closing device described in configuration 1, characterized in that the link mechanism comprises a first inclined member having one end restrained so as not to move in the vertical direction and the other end positioned higher than the one end, and a second inclined member having one end restrained so as not to move in the vertical direction and the other end positioned higher than the one end, and the link portion is a portion where the other end of the first inclined member and the other end of the second inclined member are pivotally supported.

[0008] (Configuration 3) An opening and closing device according to configuration 1 or 2, characterized in that the actuator is provided at an upper part of the opening on the indoor side, and has a piston rod that moves up and down, the piston rod is connected to the rod, and the piston rod is provided at an incline so that it moves away from the opening as it goes downward.

[0009] (Configuration 4) The opening and closing device according to configuration 1 or 2, characterized in that the actuator is provided at the upper part of the opening on the indoor side, and has a piston rod that moves up and down, the piston rod is connected to the rod, and the actuator is provided at an angle so that it moves away from the opening as it goes downwards so as not to interfere with the opening and closing body when the opening and closing body is opened or closed.

[0010] (Configuration 5) 5. The opening and closing device according to any one of configurations 1 to 4, wherein the pressing mechanism including the link mechanism is formed from the lower end of the opening and closing body in the closed state to a predetermined height that is lower than the upper end. [Effects of the Invention]

[0011] The opening and closing device of the present invention provides a new mechanism for increasing the degree of closure of the opening by the opening and closing body. [Brief explanation of the drawings]

[0012] [Figure 1] FIG. 1 is a side view showing an opening and closing device according to an embodiment of the present invention; [Figure 2] FIG. 1 is a cross-sectional view of an opening and closing device according to an embodiment. [Figure 3] FIG. 1 is a diagram showing a pressing mechanism according to an embodiment; [Figure 4] FIG. 1 is a diagram showing a pressing mechanism according to an embodiment; [Figure 5] FIG. 1 is a diagram showing a pressing mechanism according to an embodiment; [Figure 6] Conceptual diagram of an example in which an opening / closing body is provided with a link mechanism [Figure 7] Conceptual diagram showing another example of a pressing mechanism DETAILED DESCRIPTION OF THE INVENTION

[0013] 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.

[0014] FIG. 1 is a side view showing an opening and closing device according to an embodiment of the present invention, and FIG. 2 is a horizontal cross-sectional view. The opening and closing device 1 of this embodiment is an opening and closing device that opens and closes an opening 2 formed in a wall surface that separates the indoors from the outdoors, and more specifically, is an opening and closing device called a water stop panel shutter. A water stop panel shutter is a panel shutter equipped with a mechanism (water stop function) for preventing water from entering the indoors during a flood or the like. In FIG. 1, the left side is the outdoor side and the right side is the indoor side, and in FIG. 2, the upper side is the outdoor side and the lower side is the indoor side.

[0015] The opening and closing device 1 has the following general configuration: an opening / closing body 11 that opens and closes the opening 2; Side structure portions 12 (12L, 12R) provided around the opening 2 (in this embodiment, on the indoor wall surface) in order to hold the opening / closing body 11; a drive unit 13 and a mechanism unit 14 for driving (opening and closing) the opening and closing body 11; a sealing member 16 (16L, 16R) provided between the side structure portion 12 and the opening / closing body 11 in order to improve the sealing ability of the opening / closing body 11 with respect to the opening 2; a pressing mechanism 15 (15L, 15R) that presses the opening / closing body 11 horizontally (toward the interior of the building) and presses the opening / closing body 11 against the sealing member 16; an actuator 17 for driving the pressing mechanism 15, the actuator 17 being provided at the upper part of the indoor side of the opening 2 (the indoor side of the wall W above the opening 2); It is equipped with:

[0016] As described above, the opening and closing device 1 of this embodiment is a watertight panel shutter, and the opening and closing body 11 is composed of multiple panel bodies, and when the shutter is open, each panel body is separated and located at the top of the room as shown in Fig. 1. When the shutter is closed, each panel body is moved by the drive unit 13 and the mechanism unit 14 so that the panel bodies are stacked up to close the opening 2. Note that any configuration can be used for the opening / closing body 11 (each panel body) and the drive unit 13 and mechanism unit 14 (configuration for opening and closing each panel body), so detailed explanations will be omitted here. In addition, the opening / closing device 1 has a mechanism for water-stopping function, in which a sealing member that comes into contact with the floor surface is provided at the lower end of the opening / closing body 11, and also has a mechanism (actuator, etc.) that presses the opening / closing body 11 downward, but since this mechanism is not directly related to the present invention, its explanation will be omitted here.

[0017] As shown in Fig. 2, side structural members 12 (12L, 12R) are installed on the indoor side of the wall surfaces on both sides of the opening 2. The side structural members 12L, 12R installed on both sides have a bilaterally symmetrical structure, and will be described hereinafter as side structural member 12 without any particular distinction between left and right. The pressing mechanism 15 (15L, 15R) and the sealing member 16 (16L, 16R) are also bilaterally symmetrical, and will be described hereinafter as the pressing mechanism 15 and the sealing member 16 without any particular distinction between left and right. The side structural part 12 functions as a guide rail that guides the lifting and lowering of the opening-closing body 11, and also functions to stop water from entering between the wall surface and the opening-closing body 11. That is, the side structural part 12 has a U-shape that opens inward in a plan view (horizontal cross section), receives the end of the opening-closing body 11, and has a structure that fits tightly to the end of the opening-closing body 11, and is attached so as to fit tightly to the wall surfaces and floor surfaces on both sides of the opening 2, and is structured to be able to stop water from entering between the end of the opening-closing body 11 and the wall surfaces and floor surfaces on both sides of the opening 2 (a structure with no gaps between each component). The "structure that comes into close contact with the end of the opening / closing body 11" includes a sealing member 16 that extends in the vertical direction in a range that faces the opening / closing body 11, and a pressing mechanism 15 that will be described below.

[0018] 3 to 5 are diagrams showing the pressing mechanism 15, with FIG. 3(a) being a front view (a view seen from the indoor side, shown transparently), FIG. 3(b) being a side view (shown transparently), FIG. 4(a) being a cross-sectional view taken along line AA in FIG. 3(b), FIG. 4(b) being a cross-sectional view taken along line BB in FIG. 3(b), and FIG. 5 being an exploded perspective view (part).

[0019] The pressing mechanism 15 is a fixed frame 151 fixed to the side structure portion 12; A movable frame 152 that moves parallel to the fixed frame 151 toward the indoor side; a plurality of link mechanisms 157 provided at predetermined intervals in the vertical direction, the amount of horizontal displacement of which changes between the flexed state and the extended state; a rod 153 that extends / bends the link mechanism 157 by pushing down / pulling up the link portion of the link mechanism 157; an actuator connection portion 154 provided at the upper end of the rod 153; a mounting bracket 155 for mounting the fixed frame 151 to the side structure 12; a positioning fitting 156 for positioning the pressing mechanism 15; Equipped with.

[0020] As can be seen from FIGS. 4 and 5, the fixed frame 151 and the moving frame 152 are substantially U-shaped in top view (horizontal cross section), and are members that extend vertically with substantially the same length as the seal member 16. The fixed frame 151 is attached to the side structure 12 by means of mounting brackets 155. Positioning brackets 156 are attached as positioning members at this time. The pressing mechanism 15 is positioned by arranging the positioning brackets 156 so that they abut against the side structure 12. A plurality of mounting brackets 155 and positioning brackets 156 are provided at regular intervals in the vertical direction, and in this embodiment, they are configured to be attached together with a side guide plate 1573 of the link mechanism 157 described below. The moving frame 152 is connected to the fixed frame 151 by a link mechanism 157, and is a member that moves parallel to the fixed frame 151 toward the indoor side and abuts against the opening / closing body 11 to press the opening / closing body 11 against the sealing member 16.

[0021] The rod 153 is a member for driving (extending and bending) the link mechanism 157 described below, and is a rod-shaped member that has an actuator connection part 154 at its upper part that connects to the piston rod 171 of the actuator 17, and is connected to each of the link mechanisms 157 that are provided at regular intervals in the vertical direction. The actuator connection part 154 has a shaft part 1541 (a substantially horizontal shaft that is substantially parallel to the wall surface at the top of the opening) at the top, and supports the piston rod 171 of the actuator 17 so that it can pivot.

[0022] As shown in FIGS. 4 and 5, the link mechanism 157 is a first inclined member 1571, one end of which is constrained so as not to move in the vertical direction and the other end of which is positioned higher than the one end; Two second inclined members 1572, one end of which is constrained so as not to move in the vertical direction and the other end of which is positioned higher than the one end; Two side guide plates 1573 fixed to the fixed frame 151; Shaft members 1574 to 1577 for joining the respective members; two bearing members 1578; Equipped with. Note that, although an example is shown here in which first inclined member 1571 is formed of one plate and second inclined member 1572 is formed of two plates, the present invention is not limited to this, and any member (any structure) configured to have the function of a V-shaped link member described below may be used (first inclined member 1571 and second inclined member 1572 may each have any number of plates, and they do not have to be plate-shaped members). Also, although an example is shown in which there are two side guide plates 1573, the present invention is not limited to this, and any member (any structure) configured to have the function of supporting the other end of the link member described below so that it can move back and forth in a direction from inside the room to outside the room may be used.

[0023] A hole H1 is formed on the other end side of the first inclined member 1571 and the other end side of the second inclined member 1572, and they are pivotally supported by an axis member 1574, thereby forming a V-shaped link member, as can be seen in Figure 3(b). A hole H3 is formed in one end of the first inclined member 1571, which is one end of the L-shaped link member, and in the two side guide plates 1573 (see Figure 5), and the first inclined member 1571 is pivotally supported by the shaft member 1575 relative to the side guide plates 1573 (one end of the first inclined member 1571 is restrained so as not to move in the vertical direction). Furthermore, a hole H2 is formed on one end side of each of the two second inclined members 1572, which are the other end side of the V-shaped link member, and a shaft member 1576 is passed through the hole H2 to connect the two second inclined members 1572 together with two bearing members 1578. At the same time, the shaft member 1576 is also passed through the hole H2 formed in the moving frame 152, thereby connecting the other end side of the V-shaped link member to the moving frame 152. The two bearing members 1578 are each slidably disposed in a guide groove 15731 formed in the side guide plate 1573. The guide groove 15731 is formed in the horizontal direction from the inside of the room to the outside of the room, and therefore one end side of the two second inclined members 1572, which are the other end sides of the L-shaped link member, can move back and forth in the direction from the inside of the room to the outside of the room, but is restrained from moving in the vertical direction.

[0024] One of the two side guide plates 1573 has a hole H6 formed therein, and is screwed into hole H6 formed in the fixed frame 151. Similarly, the other side guide plate 1573 is screwed to the fixed frame 151 through hole H5. As described above, the mounting bracket 155 and the positioning bracket 156 are each screwed together with the side guide plate 1573 and fixed to the fixed frame 151. Furthermore, the two side guide plates 1573 are each formed with a hole H4 on the opposite side (inside the room) from the hole H5 or hole H6, and are connected by a shaft member 1577. The shaft member 1577 is a reinforcing structure.

[0025] At a link portion where the other end of the first inclined member 1571 and the other end of the second inclined member 1572 are pivotally supported by a shaft member 1574, the shaft member 1574 is passed through a hole H1 formed in the rod 153, thereby connecting the link mechanism 157 and the rod 153. Annular grooves are formed at both ends of the shaft member 1574, and retaining rings 15741 are fitted into the grooves, thereby preventing the shaft member 1574 from coming off when inserted through holes H1 formed in the first inclined member 1571, the second inclined member 1572, and the rod 153.

[0026] As described above, the link mechanism 157 has a link member in which the first inclined member 1571 and the second inclined member 1572 are rotatably connected to each other in a V-shape. One end of the link member is pivotally supported by two side guide plates 1573, and the other end is supported so as to be reciprocally movable in a direction from the inside of the room to the outside of the room along the guide grooves 15731 of the two side guide plates 1573. The movable frame 152 is connected to the other reciprocating end. In addition, the rod 153 is connected to the link portion, which is the apex of the V-shape of the link member. With this configuration, when the rod 153 pushes the link portion downward, the link member extends and the moving frame 152 moves toward the indoor side. This causes the moving frame 152 to come into contact with the opening / closing body 11, pressing the opening / closing body 11 against the sealing member 16. On the other hand, when the rod 153 pushes the link portion upward, the link member bends and the moving frame 152 moves back (i.e., the amount of horizontal displacement of the link mechanism changes depending on whether it is bent or extended). When pressing the opening / closing body 11 against the sealing member 16, a certain amount of load must be applied to achieve watertight function, but according to the opening / closing device 1 of this embodiment, the pressing operation is performed by pressing down the rod 153 (the weight of the member acts in the pressing direction), so the force pressing down the rod 153 can be reduced to obtain the required load. This reduces the load on the actuator. Also, if the operation to stop the water flow (pushing down the rod 153) can be performed manually, the operation can be made easier. In the event of a disaster such as a flood, the actuator may not work due to a power outage, etc., so it is useful to be able to stop the water flow manually.

[0027] The actuator 17 that moves the rod 153 up and down (that is, drives the pressing mechanism) includes a piston rod 171 that moves up and down, and the piston rod 171 is connected to the actuator connection portion 154 of the rod 153. As shown in Figure 1, the actuator 17 is provided with a piston rod 171 that is tilted downwards, away from the opening 2 (towards the indoor side). According to the configuration of the link mechanism 157 described above, the rod 153 is displaced in the indoor-outdoor direction as the link member extends / bends. By providing the piston rod 171 at an angle, it is possible to accommodate (follow) this displacement. In addition, the actuator 17 is inclined downwards so that it moves away from the opening 2 (towards the indoor side), thereby preventing the actuator 17 from interfering with the panel body that moves when opening and closing. According to the opening and closing device 1 of this embodiment, the V-shaped link member reduces the amount of displacement of the rod 153 in the indoor-outdoor direction.

[0028] In this embodiment, a water-stop panel shutter has been described as an example, but the present invention is not limited to this. The structure for improving the sealing performance between the opening and the opening / closing body can be used for fire prevention or smoke prevention purposes in addition to the purpose of water stoppage. The present invention can be used for opening and closing bodies such as panel shutters, overhead doors with connected panel bodies, over-sliding doors, and general shutters. Furthermore, the present invention can be used as a pressing mechanism to increase the degree of closure for any opening and closing body, including not only those that open and close vertically but also those that slide horizontally.

[0029] In this embodiment, one side (fixed frame 151) of the pressing mechanism 15 is fixed to the side structure part 12 as an example, but both ends of the pressing mechanism 15 may not be fixed, and both ends of the pressing mechanism 15 may be spread apart so as to be stretched between the side structure part 12 and the opening / closing body 11 (as a result, the opening / closing body 11 is pressed against the sealing member 16).

[0030] In the present embodiment, the opening / closing body 11 is pressed against the sealing member 16 by the pressing mechanism 15 including the link mechanism 157, but the present invention is not limited to this. For example, the opening / closing body may be configured to be able to increase or decrease its thickness by including a link mechanism, and the opening / closing body may be pressed against the sealing member by increasing the thickness (at both ends) of the opening / closing body (by extending the link mechanism). FIG. 6 shows a conceptual diagram of an example of such a system. 6 is provided with V-shaped link mechanisms 157' at both ends. The opening / closing body 11' includes a panel 111 and a panel 112, and one end of the link mechanism 157' is pivotally supported by the panel 111, and the other end is pivotally supported by the panel 112, thereby connecting the panels together. A rod 153' is connected to the link portion of the link mechanism 157'. The rod 153' is provided on each panel body so that its upper end protrudes beyond the panel body. A rod push-down member 113 that abuts against the rod 153' is provided on the lower end side of the panel body. Note that while the rod protrudes upward in this example, the rod may not protrude and the rod push-down member 113 may protrude downward. With the above configuration, as can be seen from Figures 6(a) and (b), when the shutter is closed, the rod pressing member 113 of the upper panel body presses down the rod 153' of the lower panel body, thereby extending the link mechanism 157' and operating to increase the thickness of the opening / closing body 11'. As shown in Figure 6(c), a sealing member 16' extending in the vertical direction is provided at a position between the side structure part 12' and the panel 111 and panel 112 of the opening / closing body 11'. As the thickness of the opening / closing body 11' increases, the opening / closing body 11' is pressed against the sealing member 16', thereby achieving a watertight function. According to the configuration of FIG. 6, it is also possible to eliminate the need for a separate actuator for operating the link mechanism (water stop function). In addition, by connecting a rod pushing member to the rod 153' at the lower end of the rod 153', the pushing action of the upper rod 153' can be transmitted sequentially to the lower rods 153', and the uppermost rod 153' can be pushed down by an actuator. To bend the link mechanism 157' (return the thickness of the opening / closing body to its original state), an elastic body may be provided that constantly urges the rod 153' upward, or an elastic body may be provided that attracts the panels 111 and 112 to each other. The structure in which the thickness of the panel body increases or decreases may be such that the thickness of the entire panel body changes, or may be such that the thickness changes only at the end portions of the panel body.

[0031] In this embodiment, the sealing member is provided on the side structure portion 12 as an example, but the sealing member may also be provided on the side of the opening / closing body (in this case, the side structure portion and the sealing member will be pressed together).

[0032] In this embodiment, the water-stopping mechanism (pressing mechanism 15) is provided from the lower end to the upper end of the opening / closing body 11 (across the entire height), but the present invention is not limited to this, and may be provided at least at the lower part of the opening / closing body depending on the water-stopping height, such as about 1 m from the floor (formed from the lower end of the opening / closing body in the closed state to a predetermined height that is lower than the upper end).

[0033] Figure 7 shows another example of a pressing mechanism for converting the movement of the rod driven in the vertical direction into horizontal (toward the interior) movement to press the opening / closing body (or side structure) and the sealing member together. The pressing mechanism 200 illustrated in FIG. a rotating member 201 that is pivotally supported by a fulcrum 2011 and rotates around the fulcrum 2011; a rod 202 that is driven to reciprocate in the up and down direction; a link member 203 provided to slide horizontally (not shown in the figure, but for example, by connecting to the moving frame described in the embodiment, it operates to press the opening / closing body (or side structure portion) and the seal member together); It is equipped with The rotating member 201 and the rod 202 are interconnected so that the rotating member 201 rotates as the rod 202 moves up and down, and the rotating member 201 and the link member 203 are interconnected so that the link member 203 slides horizontally as the rotating member 201 rotates. More specifically, a first slit 2012 and a second slit 2013 are formed in the rotating member 201, and an axial member 2021 formed on the rod 202 is loosely fitted into the first slit 2012, and an axial member 2031 formed on the link member 203 is loosely fitted into the second slit 2013. 7(a) and 7(b), with this configuration, the vertical movement of the rod 202 rotates the rotating member 201, and the rotation of the rotating member 201 causes the link member 203 to slide horizontally. As a result, the vertically driven movement of the rod is converted into horizontal movement (toward the interior) to press the opening / closing body (or side structure) and the sealing member together. [Explanation of symbols]

[0034] 1...Switchgear 11...Opening and closing body 12...Side structure 15...Pushing mechanism 153...Rod 157...Link mechanism 1571...First inclined member 1572...Second inclined member 16...Sealing material 17...Actuator 171...Piston rod 2...Opening

Claims

1. An opening and closing device for opening and closing an opening, an opening / closing body that opens and closes the opening; a side structure portion provided around the opening portion to hold the opening / closing body; a sealing member provided between the side structure portion and the opening / closing body to improve the sealing ability of the opening / closing body; a link mechanism whose horizontal displacement changes between a flexed state and an extended state; a rod that extends the link mechanism by pushing down a link portion of the link mechanism; an actuator provided at an upper portion of the opening on the indoor side, the actuator including a piston rod connected to the rod and inclined downward so as to move away from the opening; Equipped with When the piston rod is lowered, the link mechanism is extended, and the side structure portion or the opening / closing body is pressed against the seal member, an opening and closing device, wherein a direction of movement of a horizontal component caused by the inclination of the piston rod when the piston rod descends is a direction along a direction in which the link mechanism extends.

2. An opening and closing device for opening and closing an opening, an opening / closing body that opens and closes the opening; a side structure portion provided around the opening portion to hold the opening / closing body; a sealing member provided between the side structure portion and the opening / closing body to improve the sealing ability of the opening / closing body; a link mechanism whose horizontal displacement changes between a flexed state and an extended state; a rod that extends the link mechanism by pushing down a link portion of the link mechanism; an actuator provided at an upper portion of the opening on the indoor side, the actuator including a piston rod connected to the rod, the piston rod being inclined downward so as to move away from the opening as it goes downward so as not to interfere with the opening / closing body during opening and closing operations of the opening / closing body; Equipped with When the piston rod is lowered, the link mechanism is extended, and the side structure portion or the opening / closing body is pressed against the seal member, an opening and closing device, wherein a direction of movement of a horizontal component caused by the inclination of the piston rod when the piston rod descends is a direction along a direction in which the link mechanism extends.

3. An opening and closing device as described in claim 1 or 2, characterized in that the piston rod is pivotally connected to the rod.

4. The link mechanism is a first inclined member having one end restrained so as not to move in the vertical direction and the other end positioned higher than the one end; a second inclined member having one end restrained so as not to move in the vertical direction and the other end positioned higher than the one end; Equipped with 4. The opening and closing device according to claim 1, wherein the link portion is a portion where the other end of the first inclined member and the other end of the second inclined member are pivotally supported.

5. 5. The opening and closing device according to claim 1, wherein the pressing mechanism including the link mechanism is formed from a lower end of the opening and closing body in the closed state to a predetermined height that is lower than an upper end of the opening and closing body.

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