JP7445586B2 - Shutter device seat plate presser and its seat plate presser device - Google Patents

Description

The present invention relates to a seat plate holding tool and its holding device for preventing the seat plate of a shutter device installed in a building etc. from bending and deforming in the thickness direction of the shutter curtain and lifting up when the shutter curtain is fully closed. For example, it can be used as a doorway shutter device.

A shutter device that includes guide rails placed on both the left and right sides, and a shutter curtain that opens and closes in the vertical direction guided by these guide rails, and whose closing end serves as a seat plate. In a shutter device in which the curtain body of the shutter curtain is formed by a curtain component such as a plurality of slats arranged in series in the direction of opening and closing movement of the shutter curtain, when the shutter curtain is fully closed, for example, The seat board may be bent and deformed in the thickness direction of the shutter curtain due to wind pressure caused by strong winds of a typhoon, and this may cause the seat board to lift up.

Taking this into consideration, Patent Document 1 below describes a shutter device in which the curtain component is a slat, the upper end of which is rotatably connected to the side edge of the opening to be opened and closed by the shutter curtain. By placing the bar-shaped reinforcing body diagonally with respect to the shutter curtain, and inserting the insertion member attached to the lower end of this reinforcing body into the insertion hole provided in the floor of the opening, the shutter including the seat plate can be removed. It has been shown that the curtain is prevented from being deflected in the thickness direction of the shutter curtain.

Japanese Patent Application Publication No. 2014-40729

However, according to Patent Document 1, in order to prevent the seat plate from being bent and deformed in the thickness direction of the shutter curtain, a lower surface forming member that forms the lower surface of the space closed by the shutter curtain when fully closed is used. An insertion hole for inserting the insertion member attached to the lower end of the reinforcing body must be provided in the floor, and this insertion hole must be closed during normal operation.

It is an object of the present invention to prevent the seat plate of the shutter curtain from being damaged by wind pressure caused by strong winds of a typhoon, etc., without performing any processing work on the lower surface forming member that forms the lower surface of the space closed by the shutter curtain when the shutter curtain is fully closed. To provide a seat plate presser for a shutter device and its presser device which can prevent the seat plate from being lifted up due to large bending deformation in the thickness direction.

The seat plate holder of the shutter device according to the present invention has guide rails arranged on both the left and right sides, and is guided by these guide rails to open and close in the vertical direction, and the closing side end serves as the seat plate. In the shutter device, the seat plate is configured to include a shutter curtain, and the curtain body of the shutter curtain is formed by a plurality of curtain component members arranged in series in the opening/closing direction. A seat plate holding device for suppressing deflection and deformation in the thickness direction of the shutter curtain when the shutter curtain is fully closed, and forming the lower surface of the space closed by the shutter curtain when the shutter curtain is fully closed. The seat plate holding device is disposed on the lower surface forming member that is attached to the shutter curtain, and includes a contact portion with which the seat plate contacts from above, and an extension extending outward from the contact portion in the thickness direction of the shutter curtain. The upper surface of the abutting portion and the upper surface of the extending portion are continuous, and the extending portion rests on the seat plate when the shutter curtain is bent and deformed in the thickness direction. The height of the upper surface gradually increases as the extending portion extends outward in the thickness direction of the shutter curtain.

As described above, the seat plate presser for a shutter device according to the present invention has a contact portion with which the seat plate contacts from above, and an extension portion extending outward in the thickness direction of the shutter curtain from this contact portion. In addition, the upper surface of the abutting portion and the upper surface of the extending portion are continuous, and the upper surface of the extending portion on which the seat plate rides when the shutter curtain is deflected in the thickness direction. The height dimension gradually increases as the extension extends outward in the thickness direction of the shutter curtain. Therefore, when the shutter curtain is fully closed, if the seat plate, which has been slightly bent and deformed in the thickness direction of the shutter curtain due to wind pressure from strong winds of a typhoon, rides on the top surface of the extension, the curtain body of the shutter curtain will Since the curtain is formed by connecting multiple curtain components in the direction of opening and closing movement, the seat plate cannot move upward or can hardly move upward. The seat plate does not move or hardly moves outward in the thickness direction of the shutter curtain along the shutter curtain, thereby preventing the seat plate from being significantly bent and deformed in the thickness direction of the shutter curtain and floating up. In addition, when the seat plate rides on the upper surface of the extension part, a downward pressing force is applied to the seat plate presser, so the seat plate presser and the shutter curtain when fully closed are used to close the seat plate. Due to the frictional force between the seat plate presser and the lower surface forming member that forms the lower surface of the space where the seat plate is held, the seat plate presser does not move outward in the thickness direction of the shutter curtain, and the seat plate does not move outward in the thickness direction of the shutter curtain. It is possible to prevent large deflection and deformation of the material to the outside.

Therefore, according to the seat plate presser of the shutter device according to the present invention, the seat plate presser is simply placed on the lower surface forming member that forms the lower surface of the space closed by the shutter curtain when fully closed. This can prevent the seat plate from being significantly bent and deformed in the thickness direction of the shutter curtain and floating due to wind pressure caused by strong winds of a typhoon, etc., and there is no need to perform processing operations such as making holes in the lower surface forming member. do not have.

In the present invention described above, the lower surface of the seat plate presser may be made of the same material as the seat plate presser, or the lower surface of the seat plate presser may be provided with a friction material to increase the frictional force with the lower surface forming member. A member may be provided.

Of these, if a friction member is provided on the lower surface of the seat plate holder to increase the frictional force with the lower surface forming member, as in the latter case, the seat plate can be attached to the upper surface of the extending portion of the seat plate holder. It is possible to more effectively prevent the seat plate presser from moving outward in the thickness direction of the shutter curtain due to the large frictional force generated between the seat plate presser and the lower surface forming member when the shutter curtain runs on the shutter curtain. can.

Further, the upper surface of the abutting part and the upper surface of the extension part of the seat plate presser according to the present invention may be connected at an angle so that these upper surfaces are continuous, or the seat plate according to the present invention may be made continuous. The upper surface of the contact portion of the presser and the upper surface of the extension portion may be connected by a curved surface that smoothly connects these upper surfaces.

Among these, when the upper surface of the contact part and the upper surface of the extension part of the seat plate presser according to the present invention are connected by a curved surface that smoothly connects these upper surfaces, as in the latter case, the seat plate is The upper surface of the abutting part of the presser can smoothly ride on the upper surface of the extension, which further ensures the downward pressing force from the seat plate riding on the upper surface of the extension to the seat plate presser. can be made to act.

Furthermore, by connecting the lower surface of the seat plate and the side surface of the seat plate on the outside in the thickness direction of the shutter curtain at an angle, the lower surface and the side surface may be made continuous, or the lower surface of the seat plate and the side surface of the seat plate on the outside in the thickness direction of the shutter curtain may be connected by a curved surface that smoothly connects the lower surface and the side surface.

Of these, if the lower surface of the seat plate and the side surface of the seat plate on the outside in the thickness direction of the shutter curtain are connected by a curved surface that smoothly connects the lower surface and the side surface, as in the latter case, the seat plate presser The seat plate can be smoothly moved from the upper surface of the abutting part of the tool to the upper surface of the extension part, and this also allows the seat plate that has ridden on the upper surface of the extension part to move downward onto the seat plate presser. The pressing force can be applied more reliably.

Furthermore, in the above seat plate presser for a shutter device according to the present invention, when the bending deformation of the seat plate in the thickness direction of the shutter curtain occurs only in one of both sides of the shutter curtain in the thickness direction. In the shutter device according to the present invention, an extending portion provided on the outside in the thickness direction of the shutter curtain from the abutting portion of the seat plate presser of the shutter device is provided on both sides of the shutter curtain in the thickness direction, where bending deformation of the seat plate occurs. Alternatively, the bending deformation of the seat plate in the thickness direction of the shutter curtain may be caused by the wind pressure due to strong winds of a typhoon and the wind pressure due to strong winds blowing back. In the case where the extension part is provided on the outside in the thickness direction of the shutter curtain from the contact part of the seat plate presser of the shutter device according to the present invention, may be provided. Further, when the extending portions are provided on both sides of the shutter curtain in the thickness direction, the shapes of these extending portions relative to the abutting portions may be symmetrical or asymmetrical.

Further, the seat plate holding device of the shutter device according to the present invention has guide rails arranged on both left and right sides, and is guided by these guide rails to open and close in the vertical direction, and the closing side end serves as the seat plate. In the shutter device, the seat plate is configured to include a shutter curtain, and the curtain body of the shutter curtain is formed by a plurality of curtain component members arranged in series in the direction of opening/closing movement. , a seat plate holding device for suppressing the deflection and deformation of the shutter curtain in the thickness direction when the shutter curtain is fully closed, which forms the lower surface of the space closed by the shutter curtain when the shutter curtain is fully closed; The seat plate presser includes a seat plate presser disposed on the lower surface forming member that is attached to the seat plate, and a mounting device attached to the shutter curtain including the seat plate, and the seat plate presser is configured to has a contact part that contacts from above, and an extension part extending outward in the thickness direction of the shutter curtain from the contact part, and an upper surface of the contact part and an upper surface of the extension part. is discontinuous due to a difference in upper and lower steps, and the height dimension of the upper surface of the extending portion on which the riding tool rides when the seat plate is bent and deformed in the thickness direction of the shutter curtain is the height of the upper surface of the extending portion. The shutter curtain is characterized in that the portion gradually becomes larger as it extends outward in the thickness direction of the shutter curtain.

As described above, the seat plate holding device of the shutter device according to the present invention includes a seat plate holding tool disposed on the lower surface forming member that forms the lower surface of the space closed by the shutter curtain when fully closed. , and a mounting tool attached to the shutter curtain including the seat plate. The shutter curtain has an extending portion extending outward in the thickness direction of the shutter curtain, and the upper surface of the abutting portion and the upper surface of the extending portion are discontinuous due to a vertical step. The height dimension of the upper surface of the extending portion on which the riding tool rides when the curtain is deflected and deformed in the thickness direction becomes gradually larger as the extending portion extends outward in the thickness direction of the shutter curtain. For this reason, when the shutter curtain is fully closed, the seat plate is slightly bent and deformed in the thickness direction of the shutter curtain due to wind pressure from strong winds of a typhoon, etc., and this causes the mounting device attached to the seat plate to move from the seat plate holding device. When it rides on the upper surface of the extended part of the shutter curtain, the seat plate cannot move upward because the curtain body of the shutter curtain is formed by multiple curtain components connected in the direction of opening and closing movement of the shutter curtain. As a result, the landing gear does not or hardly moves outward in the thickness direction of the shutter curtain along the upper surface of the extension, and as a result, the seat plate does not move outward in the thickness direction of the shutter curtain. It is possible to prevent the material from floating due to large bending deformation in the direction. In addition, the seat plate holder is subjected to downward pressing force when it rides on the upper surface of the extension of the seat plate holder, so that the seat plate holder and the seat plate holder are fully closed. Due to the frictional force between the seat plate presser and the lower surface forming member that forms the lower surface of the space closed by the shutter curtain, the seat plate presser does not move outward in the thickness direction of the shutter curtain, and the seat plate does not move outward in the thickness direction of the shutter curtain. It is possible to prevent the shutter curtain from being significantly bent and deformed outward in the thickness direction.

Therefore, with the holding device of the shutter device according to the present invention, the seat plate holding tool is arranged on the lower surface forming member that forms the lower surface of the space closed by the shutter curtain when fully closed, and the seat plate is By attaching a lifting device to the shutter curtain, it is possible to prevent the seat plate from being significantly bent and deformed in the thickness direction of the shutter curtain and floating due to wind pressure caused by strong winds of a typhoon, etc., and holes are provided in the lower surface forming member. There is no need to perform processing operations such as

In addition, in the above-mentioned seat plate holding device for a shutter device according to the present invention, the mounting device attached to the shutter curtain including the seat plate may be attached only to the seat plate, or may be attached to the curtain body of the shutter curtain excluding the seat plate. It may be attached only to the seat plate, or it may be attached to both the seat plate and the curtain body, that is, it may be attached across the seat plate and the curtain body.

Also, in this seat plate holding device, the lower surface of the seat plate holding member may be made of the same material as the seat plate holding member, or the lower surface of the seat plate holding member may be made to have a large frictional force with the lower surface forming member. A friction member may be provided for this purpose.

Among these, if a friction member is provided on the lower surface of the seat plate presser to increase the frictional force with the lower surface forming member, as in the latter case, it is possible to install a friction member on the lower surface of the seat plate holder to increase the frictional force with the lower surface forming member. When the seat plate holder rides on the upper surface of the extension of the seat plate holder, the seat plate holder moves outward in the thickness direction of the shutter curtain due to the large frictional force generated between the seat plate holder and the lower surface forming member. Movement can be more effectively prevented.

Furthermore, by connecting the lower surface of the climbing tool and the side surface of the extending portion of the seat plate holding tool in this climbing tool at an angle, the lower surface and the side surface may be made to be continuous. The lower surface of the board may be connected to the side surface of the mounting tool on the side of the extension portion of the seat plate presser by a curved surface that smoothly connects the lower surface and the side surface.

Of these, if the lower surface of the climbing tool and the side surface of the seat plate holding tool on the extension part side of this climbing tool are connected by a curved surface that smoothly connects the lower surface and the side surface, The tool can be smoothly mounted on the upper surface of the extension of the seat plate holder, thereby reducing the downward pressing force from the mounting tool riding on the upper surface of the extension of the seat plate holder to the seat plate holder. can be made to work more reliably.

Further, the climbing tool and the extending portion of the seat plate holding device may be made of the same materials as those of the climbing tool and the extending portion, or at least the material of the climbing tool and the extending portion of the seat plate holding device may be A friction reducing member may be provided on one side to reduce the frictional force with the other side.

Among these, if a friction reducing member is provided on at least one of the climbing tool and the extension part of the seat plate holding device to reduce the frictional force with the other, as in the latter case, the seat plate holding device It is possible to reduce the frictional force so that the climbing tool can smoothly ride on the upper surface of the extending portion of the seat plate holding device. A downward pressing force can be applied to the plate holding tool more reliably.

Further, a rotary member is rotatably attached to at least one of the portion of the riding tool that rides on the upper surface of the extending portion of the seat plate presser and the portion of the upper surface of the extending portion of the seat plate holding device that the riding tool rides on. May be placed.

According to this, it is possible to smoothly ride the climbing tool onto the upper surface of the extending portion of the seat plate holding device by rotating the rotating member, and this also allows the riding tool to ride on the upper surface of the extending portion of the seat plate holding device. It is possible to more reliably apply a downward pressing force from the riding tool to the seat plate holding tool.

Furthermore, with respect to the seat plate holding device for the shutter device according to the present invention, as well as the seat plate holding device for the shutter device according to the present invention described above, the bending deformation of the seat plate in the thickness direction of the shutter curtain is If it occurs in only one direction out of both sides of the shutter curtain in the thickness direction, from the abutment part of the seat plate presser in the seat plate presser of the shutter device according to the present invention to the outside in the thickness direction of the shutter curtain. The extending portion is provided only on one of both sides of the shutter curtain in the thickness direction where the seat plate is bent and deformed, and the mounting device is also provided on both sides of the shutter curtain in the thickness direction where the seat plate is bent and deformed. It may be provided only on one side, or, for example, the bending deformation of the seat plate in the thickness direction of the shutter curtain may be caused by wind pressure due to strong winds of a typhoon and wind pressure due to strong winds blowing back. In the case where the extension part is provided on the outside in the thickness direction of the shutter curtain from the abutting part of the seat plate presser in the seat plate presser of the shutter device according to the present invention, in the thickness direction of the shutter curtain. In addition to being provided on both sides, the riding tools may also be provided on both sides in the thickness direction of the shutter curtain. In addition, when the extending portions are provided on both sides of the shutter curtain in the thickness direction and the mounting devices are also provided on both sides of the shutter curtain in the thickness direction, the shape of the extending portions relative to the abutting portions should be changed. The shape may be symmetrical or asymmetrical, and the shape of the landing gear relative to the shutter curtain including the seat plate may also be symmetrical or asymmetrical.

The number of seat plate pressers and seat plate pressers of the shutter device according to the present invention described above in the length direction of the seat plate may be any number, and these seat plate pressers and seat plate pressers may be For example, it may be one piece placed at the center in the length direction of the seat board, or it may be multiple pieces placed at intervals in the length direction of the seat board, or the length of the seat board may be It may be one piece having a length dimension spanning substantially the entire length in the direction.

Furthermore, in the present invention described above, a plurality of curtain constituent members forming a curtain body by being arranged in series in the opening/closing direction of the shutter curtain are attached to the seat plate or to the shutter curtain including the seat plate. Any device may be used as long as the seat plate cannot move upward or hardly move when a load is applied upward from the upper surface of the extension of the seat plate holding device to the lifting device. The curtain components of this example are slats that are vertically connected to each other by engagement of curled portions formed at the upper and lower ends, and the curtain components of other examples are slats that are vertically connected to each other around a horizontal rotation center axis. Therefore, the seat plate presser and seat plate presser of the shutter device according to the present invention can be used for a slat-type shutter device, a panel-type shutter device, and a shutter curtain with a combination of slats and panels. It can be applied to a composite shutter device, etc. to be formed.

In addition, in the seat plate presser of each of the shutter devices and the seat plate presser device described above, the seat plate is raised and lowered in the vertical direction with respect to the seat plate main body and the lower side of the seat plate body. The seat plate may be configured to include a freely arranged elevating body, or the seat plate may be mainly composed of, for example, a main portion of the seat plate having a box-like cross section. If the seat plate is configured to include the above-mentioned seat plate main body and the elevating body, the seat plate that comes into contact with the above-mentioned abutment part of the seat plate presser from above should be placed under the seat plate main body. It becomes an elevating body placed on the side.

Furthermore, the seat plate presser of each shutter device and the seat plate presser device described above can be used in any application in which the shutter curtain is expected to receive loads such as wind pressure in the thickness direction of the shutter curtain. It can be applied to shutter devices, one of which is an entrance shutter device in which the entrance of a building, garage, etc. is opened and closed by a shutter curtain, and another shutter device is a window shutter device. . Furthermore, the seat plate holding device of each of the shutter devices explained above and its seat plate holding device prevent the pressure of flames, smoke, etc. The invention can also be applied to a disaster prevention shutter device in which negative pressure from exhaust air acts, and can also be applied to a shutter device in which the shutter curtain is fully closed for waterproofing.

In addition, the seat plate presser of each shutter device and the seat plate presser device described above can be applied to a shutter device installed in a newly constructed building, etc., or a shutter device to be renovated, and furthermore, This can also be applied to shutter devices, etc. that have already been installed.

According to the present invention, without performing any processing work on the lower surface forming member that forms the lower surface of the space closed by the shutter curtain when the shutter curtain is fully closed, the seat plate is reduced by the thickness of the shutter curtain due to wind pressure caused by strong winds of a typhoon, etc. It is possible to obtain the effect of preventing large bending deformation in the horizontal direction and lifting up.

FIG. 1 is an overall front view showing an entrance/exit shutter device in which a seat plate presser according to an embodiment of the present invention is seen from the outside when the shutter curtain is fully closed. FIG. 2 is a sectional view taken along the line S2-S2 in FIG. FIG. 3 is a sectional view taken along line S3-S3 in FIG. FIG. 4 is a cross-sectional view showing the state of the seat plate when the shutter curtain is raised from the fully closed position. FIG. 5 is a perspective view of the seat plate presser shown in FIGS. 1 and 3. FIG. 6 is a diagram similar to FIG. 3 showing a case where the seat plate is slightly bent and deformed in the thickness direction of the shutter curtain. FIG. 7 is a partially enlarged view of FIG. 6. FIG. 8 is a diagram similar to FIG. 3 showing a seat plate according to another embodiment. FIG. 9 is a diagram showing an embodiment of the seat plate pressing device according to the present invention, and is a diagram similar to FIG. 3 showing a state in which the mounting tool is attached to the shutter curtain including the seat plate. FIG. 10 is a perspective view showing a seat plate presser and a riding-up tool of the seat plate presser according to the embodiment of FIG. 9. 11 is a diagram similar to FIG. 6 showing the seat plate pressing device according to the embodiment of FIG. 9. FIG. FIG. 12 is a diagram similar to FIG. 9 showing an embodiment in which the climbing tool is provided with a rotating member. FIG. 13 is a sectional view showing a state in which the riding tool is removed from the seat plate in the embodiment of FIG. 9. FIG. 14 is a diagram similar to FIG. 9 showing a case where the seat plate pressing device according to the embodiment of FIG. 9 is applied to the seat plate of the embodiment of FIG. 8. FIG. 15 is a sectional view showing a state in which the climbing tool is removed from the seat plate in the embodiment of FIG. 14.

EMBODIMENT OF THE INVENTION Below, the form for implementing this invention is demonstrated based on drawing. FIG. 1 shows an overall front view of a shutter device to which a seat plate presser according to an embodiment of the present invention is applied. This shutter device is an entrance/exit shutter device installed at the entrance/exit of a building such as a warehouse, and FIG. 1 is a view of the shutter device as seen from the outside of the room when the shutter curtain is fully closed. In this entrance/exit shutter device, a shutter curtain 2, which is attached to a building frame such as a wall and can be opened and closed up and down guided by guide rails 1 arranged on both left and right sides, is connected to a curtain body 3, and this curtain. The curtain body 3, which is equipped with a seat plate 4 provided at the lower end of the main body 3 and forms almost the entire shutter curtain 2, has a large number of slats 5 arranged vertically. It becomes. The upper end of the curtain body 3 is connected to a horizontal winding shaft 7 rotatably supported by a pair of left and right brackets 6 connected to a hanging wall or the like in the attic space above the ceiling 15. Driving force from a switch 8 consisting of a combination of an electric motor and a brake driven by operation of an operating device (not shown) is transmitted to the shaft 7 via a transmission means 9 consisting of a sprocket wheel, a chain, etc. The shutter curtain 2 is moved around the guide rails on both the left and right sides by winding and unwinding the shutter curtain 2 on the winding shaft 7 by rotating the winding shaft 7 in forward and reverse directions with the forward and reverse rotation driving force from the electric motor of the opening/closing machine 8. 1, it opens and closes in the vertical direction.

The shutter curtain 2 whose lower end on the closing side is the seat plate 4 closes and moves downward, and the seat plate 4 comes into contact with the floor surface 10A of the floor member 10 of the entrance/exit, so that the shutter curtain 2 is completely closed. When the shutter curtain 2 is closed and moved upward, the seat plate 4 reaches the height of the lintel member 11 that forms a slit in the ceiling 15 through which the shutter curtain 2 is inserted vertically. As a result, the shutter curtain 2 is fully opened.

In addition, as the shutter curtain 2 closes and moves downward as described above and the seat plate 4 comes into contact with the floor surface 10A of the floor member 10 of the entrance/exit, the seat plate 4 reaches the fully closed position, so that the upper surface is closed. The floor member 10, which is the floor surface 10A and is made of concrete, mortar, asphalt, etc., is a lower surface forming member that forms the lower surface of the space closed by the shutter curtain 2 in this embodiment. .

As mentioned above, the shutter device according to the present embodiment is an electric shutter device in which the shutter curtain 2 opens and closes in the vertical direction by the driving force from the opening/closing device 8. The plate holding device has a return spring arranged inside the take-up shaft, and this return spring is used to open the shutter curtain upward when the take-up shaft rotates in the opposite direction when the shutter curtain closes and moves downward. A return spring force is accumulated to assist the forward rotation of the take-up shaft for movement, and this return spring force allows the shutter curtain to be opened and moved upward by manual operation. It can also be applied to shutter devices.

As shown in FIG. 1, the left and right sides of the curtain body 3 of the shutter curtain 2 are inserted into the guide rails 1, and each of the curtain bodies 3 is inserted into the guide rails 1. For each predetermined slat 5 of the slats 5 arranged at intervals, slip-off prevention members 12 are attached to both left and right ends of these slats 5. As shown in FIG. 2, which is a cross-sectional view taken along the line S2-S2 in FIG. Each guide rail 1 has an opening width in the thickness direction of the shutter curtain 2 with respect to the opening 1A into which the left and right sides of the curtain body 3 are inserted. Lip portions 1B and 1C are provided to reduce the size.

Therefore, when the shutter curtain 2 reaches the fully closed position or is in the process of opening and closing, wind pressure from strong winds of a typhoon, etc., acts in the thickness direction of the shutter curtain 2, causing the curtain body to 3 is bent and deformed in the thickness direction of the shutter curtain 2, the projections 12A of the slip-off prevention member 12 are engaged with the lips 1B and 1C of the guide rail 1, so that the left and right sides of the curtain body 3 are It can be prevented from slipping out from inside the guide rail 1.

As shown in FIG. 3, which is a cross-sectional view taken along the line S3-S3 in FIG. The seat plate 4 is configured to include an elevating body 22 arranged to be movable up and down in the direction, and the seat plate 4 detects the above-mentioned obstacle present in the entrance/exit and allows the closing movement of the shutter curtain 2. This is used in a shutter device that can stop the operation.

FIG. 4 shows the state of the seat plate 4 when the shutter curtain 2 is raised from the fully closed position. As can be seen from FIG. 4, among the members constituting the seat plate 4, the elevating body 22 has an opening 21A formed on the lower surface of the seat plate body 21 that extends upward. An extension part 22A that penetrates into the interior is provided, and a locking part protrudes outward in the thickness direction of the shutter curtain 2 at the tip of each of the pair of extension parts 22A provided in the thickness direction of the shutter curtain 2. 22B is provided. When the shutter curtain 2 is opening/closing in the vertical direction or reaching the above-mentioned fully open position, the locking portion 22B engages with the outer edge of the opening 21A of the seat plate main body 21, as shown in FIG. The elevating body 22 is lowered to the lowest position with respect to the seat plate main body 21 by being locked from above to the locked portion 21B forming the seat plate body 21. Further, inside the seat plate main body 21, a swinging member 24 that can freely swing up and down about a shaft portion 21C, and a sensor 26 such as an electric switch attached to a mounting member 25 are arranged. . Further, a push-up member 27 whose lower end portion is connected to the elevating body 22 is erected on the elevating body 22 .

If an obstacle exists at the entrance/exit mentioned above during the closing movement of the shutter curtain 2 which has reached the fully open position, the elevating body 22 will come into contact with this obstacle and stop, and the seat plate main body will be moved against the elevating body 22. 21 further descends, the locking portion 22B of the extending portion 22A provided on the elevating body 22 and the pushing up member 27 move the swinging member 24 disposed inside the seat plate body 21 from the shaft portion 21C. The sensor 26 is actuated by the swinging member 24 by swinging the sensor 26 upwardly toward the center (see FIG. 3). The signal from this sensor 26 is sent wirelessly or by wire to, for example, a control device disposed on the lintel member 11 in FIG. 1, and the control by this control device drives the electric motor of the switch 8 in FIG. By stopping and turning on the brake, the rotation of the winding shaft 7 is stopped, and the shutter curtain 2 is closed and stops moving. When the obstacle is removed, the lifting body 22 descends and the swinging member 24 swings downward around the shaft portion 21C, so that the switch 8 is activated by a signal from the control device due to the reverse operation of the sensor 26. When the electric motor starts driving and the brake is turned off, the shutter curtain 2 starts to move closed.

As shown in FIG. 3, even if the shutter curtain 2 is fully closed due to the elevator body 22 of the seat plate 4 coming into contact with the floor surface 10A of the floor member 10, the sensor 26 is activated. A winding shaft rotation speed detection device for detecting the rotation speed of the winding shaft 7 is arranged on the winding shaft 7 shown in FIG. The above-mentioned control device, to which a signal is sent from the winding shaft rotation speed detection device, stops driving the electric motor of the opening/closing machine 8 and turns on the brake. The closing movement of the shutter curtain 2 that has reached the fully closed position may be stopped. In this case, the signal sent from sensor 26 is overridden in the aforementioned control device.

As shown in FIG. 3, the curtain body 3 of the shutter curtain is formed by vertically connecting a large number of slats 5, and the horizontal direction, which is the length direction of the seat plate 4, is the longitudinal direction. Among these slats 5 whose width direction is the vertical direction, the rising portions 21D and 21E provided on the seat plate main body 21 of the seat plate 4 are attached to the bottom slat 5A with rivets, etc. The seat plate main body 21 is attached to the curtain main body 3 by being coupled with a coupling tool 28. Therefore, each slat 5 is a curtain component in which a large number of slats 5 are arranged in series in the direction of opening and closing movement of the shutter curtain 2 in order to form the curtain body 3 of the shutter curtain 2.

In addition, among the slats 5 that constitute the curtain component in this way, the upper end of the lowest slat 5A and both upper and lower ends of each slat 5 except for this slat 5A are made of the material of the slat 5. Curled portions 29 are formed by curling a certain plate material, and by rotatably engaging these curled portions 29, the respective slats 5 are vertically connected. Since the curled portions 29 are engaged with each other with no or almost no vertical gap, as described above, the left and right portions of the curtain body 3 are inside the guide rail 1. In the state where the seat plate 4 is inserted into the seat plate 4, when an upward load is applied to the seat plate 4, the seat plate 4 does not move upward or hardly moves upward.

As shown in FIG. 1, the left and right end portions of the lowermost slat 5A are inserted into the guide rails 1 on both the left and right sides, so the seat coupled to the lowermost slat 5A The rising portions 21D and 21E of the seat plate body 21 of the plate 4 may or may not be inserted into the guide rail 1. An insertion member inserted into the guide rail 1 may be combined.

When the shutter curtain 2 is stopped at the fully open position or halfway up and down, the seat plate presser 30 shown in FIG. 1 is closed by the shutter curtain 2 when it is fully closed as described above. It is arranged on the floor surface 10A of the floor member 10 which forms the lower surface of the space, and this arrangement position is the position where the seat plate 4 of the shutter curtain 2 reaches when it is fully closed. This is the center point in the length direction. FIG. 3 shows the relationship between the seat plate holder 30 and the seat plate 4 of the shutter curtain 2 when it is fully closed, and FIG. 5 shows a perspective view of the seat plate holder. has been done.

As shown in FIGS. 3 and 5, the seat plate presser 30, in which the length direction of the seat plate 4 is the width direction, is provided at the center of the shutter curtain 2 in the thickness direction, A contact portion 31 is a portion of the seat plate 4 that the elevating body 22 contacts from above, and two extension portions 32 extend from this contact portion 31 to both sides in the thickness direction of the shutter curtain 2. It has become something that we have. The dimension in the thickness direction of the shutter curtain 2 at the contact part 31 is the same as or slightly larger than the dimension in the thickness direction of the shutter curtain 2 at the elevating body 22 of the seat plate 4, and the vertical dimension The upper surface 31A of this contact portion 31 with a small surface area is a horizontal or substantially horizontal flat surface. Further, the height dimension of the upper surface 32A of each extending portion 32 that is continuous from the upper surface 31A of the contacting portion 31 is such that the extending portions 32 extend from the contacting portion 31 in the thickness direction of the shutter curtain 2. Therefore, the upper surface 32A of these extending portions 32 is a surface that slopes upward from the upper surface 31A of the contact portion 31.

Further, the upper surface 31A of the contact portion 31 and the upper surfaces 32A of the two extension portions 32 are not connected at an angle, and the upper surface 31A of the contact portion 31 and the upper surface 32A of the extension portions 32 are , are smoothly connected by a curved surface 33 projecting downward in a curved manner. Further, as shown in FIG. 3, the lower surface 22C of the elevating body 22 is the lower surface of the seat plate 4, and the shutter curtain is the side surface of the seat plate 4 on the outside of the shutter curtain 2 in the thickness direction. The lower surface 22C of the elevating body 22 and the side surface 22D of the elevating body 22 on the outer side of the shutter curtain 2 in the thickness direction are not connected at an angle. , are smoothly connected by a curved surface 34 projecting diagonally downward and outward from the elevating body 22 in a curved shape. In other words, as shown in FIG. 4, the lower corners of the elevating body 22 on both sides of the shutter curtain 2 in the thickness direction are rounded and chamfered by the curved surfaces 34.

Further, a thin plate-like friction member 35 having a roughened lower surface portion is attached to the lower surface of the seat plate presser 30, so that the seat plate presser 30 can be attached to the floor member 10 as described above. When a moving load in the thickness direction of the shutter curtain 2 is applied to the seat plate presser 30, the floor of the floor member 10 made of concrete, mortar, asphalt, etc. Due to the large friction force generated between the surface 10A and the friction member 35, the seat plate presser 30 does not move in the thickness direction of the shutter curtain 2, or hardly moves.

FIG. 6 shows that the wind pressure from the strong winds of a typhoon acts on the fully closed shutter curtain 2, and as a result, the shutter curtain 2 is bent and deformed from the outdoor side to the indoor side, and the seat plate 4 is also moved from the outdoor side to the indoor side. It shows when it is bent and deformed inward. The amount of deflection deformation of the seat plate 4 is maximum at the longitudinally central location of the seat plate 4, and this location coincides with the placement location of the seat plate presser 30 on the floor surface 10A of the floor member 10.

FIG. 7 is a partially enlarged view of FIG. 6. As shown in FIG. 7, at the location where the seat plate presser 30 is arranged, the elevating body 22 of the seat plate 4 is brought into contact with the seat plate presser 30 due to the bending deformation of the seat plate 4. From the top surface 31A of the portion 31, the seat plate presser 30 rides on the top surface 32A of the extension portion 32 that extends from the contact portion 31 toward the indoor side, of the two extension portions 32 provided on the seat plate presser 30. . This riding is caused by the moving load F along the upper surface 32A of the extension portion 32, so an upward load F1, which is a vertically upward component of the moving load F, acts on the seat plate 4. Even if such an upward load F1 is applied to the shutter curtain 4, as can be seen from the above explanation, the curtain body 3 of the shutter curtain 2 is prevented by the plurality of vertically connected slats 5 due to the engagement of the curled portions 29 with each other. Therefore, the seat plate 4 does not move upward or hardly moves upward, so that the seat plate 4 no longer extends upwardly from the upper surface 31A of the contact portion 31 toward the indoor side. It does not move or hardly moves along the upper surface 32A of the portion 32. For this reason, it is possible to prevent the central portion of the seat board 4 in the longitudinal direction from being significantly bent and deformed toward the indoor side. It can also prevent it from rising too much.

In addition, since the seat plate 4 does not or hardly moves upward due to the upward load F1 which is the vertically upward component of the moving load F, a downward pressing force is generated as a reaction force of this upward load F1. A downward load F1' is applied from the seat plate 4 to the seat plate presser 30. A horizontal load F2, which is a horizontal component of the moving load F, is acting on the seat plate presser 30, but the downward load F1' causes the seat plate presser 30 and the floor surface 10A of the floor member 10 to Due to the frictional force, the seat plate presser 30 does not move toward the indoor side, or hardly moves. Therefore, in this respect as well, it is possible to more reliably realize that the center portion in the longitudinal direction of the seat plate 4 is largely bent and deformed toward the indoor side.

Further, as described above, the friction member 35 that generates a large frictional force with the floor surface 10A of the floor member 10 is provided on the lower surface of the seat plate presser 30 of the present embodiment. 35, it is possible to effectively prevent the seat plate presser 30 from moving toward the indoor side due to the horizontal load F2.

Furthermore, as described above, since the seat plate presser 30 is provided with the curved surface 33 that smoothly connects the upper surface 31A of the abutment part 31 and the upper surface 32A of the extension part 32, the seat plate This curved surface 33 allows the lifting body 22 of No. 4 to ride smoothly from the upper surface 31A of the contact portion 31 of the seat plate presser 30 to the upper surface 32A of the extension portion 32. The above-mentioned downward load F1' can be applied to the seat plate presser 30 more reliably.

In addition, the elevating body 22 of the seat plate 4, which is in contact with the contact portion 31 of the seat plate presser 30 from above, has a curved surface that smoothly connects the lower surface 22C and the side surface 22D of the elevating body 22. Since the surface 34 is provided, the elevating body 22 can smoothly ride onto the upper surface 32A of the extension portion 32 from the upper surface 31A of the contact portion 31 of the seat plate presser 30 due to the curved surface 34. As a result, the above-mentioned downward load F1' can be applied to the seat plate presser 30 even more reliably.

In addition, the seat plate presser 30 is provided with two extending portions 32 extending from the contact portion 31 to both the indoor side and the outdoor side, which are both sides of the shutter curtain 2 in the thickness direction. For example, even if the shutter curtain 2 is bent and deformed from the indoor side to the outdoor side due to wind pressure due to strong winds blowing back from a typhoon, and the seat plate 4 is bent from the indoor side to the outdoor side, the seat plate 4 is bent from the outdoor side. Similar to when the seat plate 4 is bent and deformed toward the indoor side, it is possible to prevent the seat plate 4 from being bent and deformed from the indoor side to the outdoor side, and it is also possible to prevent the seat plate presser 30 from moving from the indoor side to the outdoor side. .

As can be seen from the above description, according to the seat plate presser 30 of the present embodiment, the seat plate presser 30 only needs to be placed on the floor surface 10A of the floor member 10; Since there is no need to provide a hole or the like to fix the seat plate holder 30, it is possible to prevent the seat plate 4 from being significantly bent and deformed in the thickness direction of the shutter curtain 2 and floating due to wind pressure caused by strong winds of a typhoon. This can be easily carried out without performing any processing work on the floor member 10.

FIG. 8 shows a case where the seat plate presser 30 is applied to a seat plate 40 different from the seat plate 4 of the above embodiment. This seat plate 40 has a seat plate main portion 41 having a box-like cross section, and a rising portion 42 rising vertically from this seat plate main portion 41, and a shutter on this rising portion 42. Among the many slats 5 forming the curtain body 3 of the curtain 2, the lowest slat 5A is connected by a connecting tool 43 such as a screw or a rivet. The lower surface 41A of the seat plate main part 41 which is the lower surface of the seat plate 40, and the seat plate on the outer side in the thickness direction of the shutter curtain 2 which is the side surface of the seat plate 40 on the outer side in the thickness direction of the shutter curtain 2. The side surface 41B of the main part 41 is not connected at an angle, and the lower surface 41A of the seat plate main part 41 and the side surface 41B of the seat plate main part 41 on the outside in the thickness direction of the shutter curtain 2 are connected diagonally downward. The seat plate main portion 41 is smoothly connected to the seat plate main portion 41 by a curved surface 44 projecting outward in a curved manner. In other words, as shown in FIG. 8, the lower corners of the seat plate main portions 41 on both sides of the shutter curtain 2 in the thickness direction are rounded and chamfered by the curved surfaces 44.

Therefore, with respect to the seat plate 40 according to this embodiment, wind pressure due to strong winds of a typhoon or wind pressure due to strong wind blowing back acts on the fully closed shutter curtain 2, causing the shutter curtain 2 to move toward the indoor side or indoors. When the seat plate 4 is deflected outward and the seat plate 4 is also deflected towards the indoor side or the outdoor side, the curved surface 44 provided on the seat plate main part 41 allows the seat plate main part 41 to press against the seat plate presser 30. It smoothly rides on the upper surface 32A of the extension portion 32 from the upper surface 31A of the contact portion 31.

FIG. 9 shows a seat plate pressing device 50 according to an embodiment of the present invention. The seat plate in this embodiment is the seat plate 4 shown in FIG. 3 and the like. Further, FIG. 10 shows a perspective view of the seat plate pressing device 50. As shown in FIG. 9, the seat plate holding device 50 includes a seat plate holding tool 51 disposed on the floor surface 10A of the floor member 10, and a climbing tool 52 attached to the seat plate 4. The number of the riding tools 52 is two, which are arranged symmetrically in the left-right direction, which is the length direction of the seat plate 4, on both sides of the shutter curtain 2 in the thickness direction. The seat plate holding tool 51 is arranged at the longitudinal center of the seat plate 4 on the floor surface 10A of the floor member 10, and the riding tool 52 is arranged at the longitudinal center of the seat plate 4 on the shutter curtain 2. can be attached to.

The seat plate presser 51 is provided at the center of the shutter curtain 2 in the thickness direction, and has a contact portion 55 with which the elevating body 22 of the seat plate 4 contacts from above, and a contact portion 55 with a small thickness in the vertical direction. It has two extending parts 56 extending from the part 55 to both sides in the thickness direction of the shutter curtain 2. The dimension in the thickness direction of the shutter curtain 2 at the contact portion 55 is larger than the dimension in the thickness direction of the shutter curtain 2 at the elevating body 22 of the seat plate 4, and the upper surface 55A of this contact portion 55 is a horizontal or approximately horizontal flat surface. In addition, in each of the extension parts 56, since the surface 56A of the extension part 56 on the contact part 55 side is a vertical plane or a substantially vertical plane, it is in contact with the upper surface 56B of each extension part 56. A vertical step is provided between the upper surface 55A of the portion 55 and the upper surface 55A of the contact portion 55 and the upper surface 56B of the extension portion 56, therefore, are discontinuous. Further, the height dimension of the upper surface 56B of each of the extending portions 56 gradually increases as the extending portions 56 extend from the contact portion 55 in the thickness direction of the shutter curtain 2. The upper surface 56B of the extending portion 56 is a surface that slopes upward from the above-mentioned surface 56A.

On the lower surface of the seat plate presser 51 formed in this way, there is a lower surface forming member for the space that is closed by the shutter curtain 2 when the shutter curtain 2 is fully closed, similar to the seat plate presser 30 shown in FIG. A friction member 57 is attached to increase the frictional force generated between the floor member 10 and the floor surface 10A.

Each landing tool 52 is provided with a recessed portion 52A that is opened upward and formed on the lowermost slat 5A side of the curtain body 3 of the shutter curtain 2, and the lowermost slat 5A side of these recessed portions 52A is formed. A hole 52C into which the shaft portion 58A of the bolt 58 is horizontally inserted is formed in the wall portion 52B. As shown in FIG. 9, the shaft of the bolt 58 is inserted into the hole 21F formed in the rising portions 21D, 21E of the seat plate main body 21 of the seat plate 4 and the bottom slat 5A. The part 58A is inserted into the lowermost slat 5A from one of the two mounting tools 52 arranged on both sides of the shutter curtain 2 in the thickness direction, and inserted into the other mounting tool 52 side. By screwing and tightening the nut 59 to the end of the protruding shaft portion 58A, each of the climbing tools 52 is attached to the lowermost slat 5A. Therefore, the bolts 58 and nuts 59 serve as co-tightening fittings for simultaneously tightening and attaching the two mounting tools 52 to the lowermost slat 5A on both sides of the shutter curtain 2 in the thickness direction.

As shown in FIG. 9, the lower surface 52D of each climbing tool 52 and the side surface 52E on the side of the extension 56 of the seat plate holding tool 51 in these climbing tools 52 are not connected at an angle. , the lower surface 52D of the climbing tool 52 and the side surface 52E of the climbing tool 52 on the side of the extension 56 of the seat plate holding tool 51 are smoothed by a curved surface 60 that protrudes diagonally downward from the climbing tool 52 in a curved shape. It is connected to the. In other words, the lower corner of each of the climbing tools 52 on the side of the extending portion 56 of the seat plate presser 51 has a round chamfered shape with the curved surface 60.

These curved surfaces 60 are formed when the shutter curtain 2 moves from the fully open position etc. in the closing direction, and when the elevating body 22 of the seat plate 4 having the seat plate main body 21 and the elevating body 22 comes into contact with the seat plate presser 51. When abutting the upper surface 55A of the contact portion 55 from above, the mounting tool 52 vertically faces the upper surface 56B of the extending portion 56 of the seat plate holding tool 51 with a slight gap between the upper surface 56B and It is a part. A friction reducing member 61 for reducing the frictional force with the upper surface 56B of the extending portion 56 of the seat plate presser 51 is fixed to the curved portion 60 which is such a portion of the riding tool 52. Further, a friction reducing member 62 for reducing the frictional force between the extending portion 56 of the seat plate holding tool 51 and the curved portion 60 of the riding tool 52 is fixed. These friction reducing members 61 and 62 are made of, for example, hard synthetic resin with a smooth surface, metal with a mirror-finished surface, or the like.

Even in this embodiment in which the seat plate holding device 50 is used, when wind pressure from strong winds of a typhoon or wind pressure from strong winds blowing back acts on the fully closed shutter curtain 2, the shutter curtain 2 moves toward the indoor side or the outdoor side. Due to the bending and deformation, the seat plate 4 also bends and deforms toward the indoor side and the outdoor side. FIG. 11 shows a state in which the seat plate 4 is bent and deformed from the outdoor side to the indoor side. When the seat plate 4 is bent and deformed from the outdoor side to the indoor side as shown in FIG. After coming into contact with the upper surface 56B of one of the two extending portions 56 provided on the indoor side extending portion 51, the vehicle rides on the upper surface 56B and moves. This running movement is carried out by a load similar to the moving load F explained in FIG. It is possible to prevent the center portion of the seat plate 4 in the length direction from being significantly bent and deformed toward the indoor side, and it is also possible to prevent the seat plate 4 from rising significantly from the floor surface 10A of the floor member 10. .

Further, as can be seen from the above description of the load F2, which is the horizontal component of the moving load F, and the downward load F1' shown in FIG. I will not do it.

Furthermore, a friction member 57 that generates a large frictional force with the floor surface 10A of the floor member 10 is provided on the lower surface of the seat plate presser 51. Movement toward the indoor side can be more effectively prevented.

Further, the climbing tool 52 is provided with a curved surface 60 that smoothly connects the lower surface 52D of the climbing tool 52 and the side surface 52E of the climbing tool 52 on the side of the extension 56 of the seat plate presser 51. Therefore, the curved surface 60 allows the climbing tool 52 to ride on the upper surface 56B of the extension part 56 of the seat plate holding tool 51 and move smoothly. Loads similar to the upward load F1 and downward load F1' of No. 7 can be generated more reliably.

In addition, a friction reducing member is provided on the curved surface 60 of the riding tool 52 that rides on the upper surface 56B of the extending portion 56 of the seat plate holding device 51, and on the upper surface 56B of the extending portion 56 of the seat plate holding device 51. 61 and 62 are provided, so that the riding tool 52 rides on the upper surface 56B of the extension part 56 of the seat plate holding tool 51 and moves smoothly by these friction reducing members 61 and 62. Can be done.

In addition, the seat plate presser 51 is provided with two extending portions 56 extending from the contact portion 55 to both the indoor side and the outdoor side, and the riding tool 52 is provided with the shutter curtain 2 on the seat plate 4. Since two pieces are attached on both sides in the thickness direction, for example, when the shutter curtain 2 is bent and deformed from the indoor side to the outdoor side due to wind pressure from strong winds blowing back from a typhoon, the seat plate 4 can be moved from the indoor side to the outdoor side. Even if the seat plate 4 is bent and deformed, it is possible to prevent the seat plate 4 from being bent and deformed greatly toward the outdoor side in the same way as when the seat plate 4 is bent and deformed from the outdoor side to the indoor side. It can also prevent movement to.

Further, the seat plate presser 51 of the seat plate presser device 50 of this embodiment may also be simply placed on the floor surface 10A of the floor member 10, and a hole or the like is provided in the floor surface 10A to allow the seat plate presser 51 to be placed on the floor surface 10A of the floor member 10. Since it does not need to be fixed, any processing work must be performed on the floor member 10 to prevent the seat plate 4 from being significantly bent and deformed in the thickness direction of the shutter curtain 2 and floating due to wind pressure caused by strong winds of a typhoon. It can be easily implemented without any problems.

In the riding tool 52' according to the embodiment of FIG. 12, the shaft is located at a location corresponding to the curved portion 60 that rides on the upper surface 56B of the extension part 56 of the seat plate presser 51 in the riding tool 52 of FIG. A rotating member 71 such as a roller is provided which is rotatable around 70 . According to this, the riding tool 52' can ride on the upper surface 56B of the extension part 56 of the seat plate holding tool 51 and move smoothly by the rotation of the rotating member 71.

In addition, when using the riding tool 52' of FIG. 12, it is not necessary to provide the above-mentioned friction reducing member 62 on the upper surface 56B of the extending portion 56 of the seat plate holding tool 51.

In the embodiment using the climbing tool 52 of FIG. 9 and the climbing tool 52' of FIG. 12 described above, the bolts shown in FIGS. 58 is used. Therefore, as shown in FIGS. 9 and 12, the rising portions 21D and 21E of the seat plate main body 21 of the seat plate 4 and the lowermost slat 5A have holes through which the shaft portions 58A of the bolts 58 are inserted. 21F will be installed. Placing the seat plate holding device 51 on the floor surface 10A of the floor member 10 and attaching the climbing devices 52, 52 to the seat plate 4 is done when strong winds of a typhoon are expected, so in normal times The fittings 52, 52 have not been attached. Therefore, as shown in FIG. 13, the hole 21F during normal operation is closed by a closing member 72 having a shaft portion 72A inserted into the hole 21F.

FIG. 14 shows a case where the seat plate pressing device 50 shown in FIG. 9 is applied to the seat plate 40 shown in FIG. 8. In this way, when applying the seat plate holding device 50 shown in FIG. 9 to the seat plate 40 shown in FIG. 2, bolts 58 and nuts 59 are used to attach the holes 45 to the bottom slat 5A of the curtain body 3 of the shutter curtain 2 and the rising portion 42 of the seat plate main portion 41 of the seat plate 40. The shaft portion 58A of the bolt 58 is inserted into the shaft portion 58A, and the nut 59 is screwed onto the end portion of the shaft portion 58A and tightened.

Note that, in FIG. 14, of the climbing tool 52 of FIG. 9 and the climbing tool 52' of FIG. 12, the climbing tool 52 of FIG. 9 is used, but the climbing tool 52' of FIG. 12 may be used.

Even when using the climbing tool 52 shown in FIG. 9 or when using the climbing tool 52' shown in FIG. A hole 45 for inserting the shaft portion 58A is provided. Since mounting of the mounting tools 52, 52' to the shutter curtain 2 including the seat plate 40 using bolts 58 and nuts 59 is not normally performed, the holes 45 in the normal state are as shown in FIG. This hole 45 is closed by a closing member 73 having a shaft portion 73A inserted into the hole 45.

The present invention can be used, for example, to prevent the seat plate of an entrance/exit shutter device installed in a building or the like from being bent and deformed in the thickness direction of the shutter curtain.

1 Guide rail 2 Shutter curtain 3 Curtain main body 4 Seat board 5, 5A Slat that is a curtain component 10 Floor member that is a lower surface forming member 21 Seat board body 22 Lifting body 30 Seat board presser 31 Contact part 31A Upper surface 32 Extension Part 32A Upper surface 33, 34 Curved surface 35 Friction member 40 Seat plate 41 Seat plate main part 44 Curved surface 50 Seat plate holding device 51 Seat plate holding device of the seat plate holding device 52, 52' Riding tool for the seat plate holding device 55 Attachment Contact portion 55A Upper surface 56 Extension portion 56B Upper surface 60 Curved surface 61, 62 Friction reducing member 71 Rotating member

Claims (11)

The shutter is composed of guide rails placed on both the left and right sides, and a shutter curtain that opens and closes in the vertical direction guided by these guide rails, and whose closing end serves as a seat plate. In a shutter device, the curtain main body of the curtain is formed by a plurality of curtain constituent members arranged in series in the opening/closing direction, and the seat plate is arranged in the thickness direction of the shutter curtain when the shutter curtain is fully closed. A seat plate presser for suppressing bending and deformation,
a seat plate presser disposed on a lower surface forming member forming the lower surface of the space closed by the shutter curtain when fully closed;
The seat plate has a contact part that contacts from above, and an extension part that extends outward in the thickness direction of the shutter curtain from the contact part, and the upper surface of the contact part and the extension part The upper surface of the extending portion is continuous with the upper surface of the shutter curtain, and the height dimension of the upper surface of the extending portion on which the seat plate rides when the shutter curtain is bent and deformed in the thickness direction of the shutter curtain is such that the extending portion is continuous with the upper surface of the shutter curtain. A seat plate presser for a shutter device, characterized in that the size gradually increases as it extends outward in the thickness direction. 2. The seat plate presser for a shutter device according to claim 1, wherein a friction member is provided on the lower surface for increasing a frictional force with the lower surface forming member. Ingredients. In the seat plate presser for a shutter device according to claim 1 or 2, the upper surface of the abutting portion and the upper surface of the extending portion are connected by a curved surface that smoothly connects these upper surfaces. A seat plate holder for a shutter device, characterized in that: In the seat plate presser for a shutter device according to any one of claims 1 to 3, the lower surface of the seat plate and the side surface of the seat plate on the outside in the thickness direction of the shutter curtain are arranged so that the lower surface and the side surface of the seat plate are A seat plate presser for a shutter device, characterized in that the seat plate presser is connected to the seat plate by a curved surface that smoothly connects the two. In the seat plate presser for a shutter device according to any one of claims 1 to 4, the extending portion extending outward from the contact portion in the thickness direction of the shutter curtain has a thickness corresponding to the thickness of the shutter curtain. A seat plate presser for a shutter device, characterized in that it is provided on both sides of the shutter device. The shutter is composed of guide rails placed on both the left and right sides, and a shutter curtain that opens and closes in the vertical direction guided by these guide rails, and whose closing end serves as a seat plate. In a shutter device, the curtain main body of the curtain is formed by a plurality of curtain constituent members arranged in series in the opening/closing direction, and the seat plate is arranged in the thickness direction of the shutter curtain when the shutter curtain is fully closed. A seat plate holding device for suppressing bending and deformation,
A seat plate presser disposed on a lower surface forming member that forms the lower surface of the space closed by the shutter curtain when fully closed, and a mount attached to the shutter curtain including the seat plate. Consisting of ingredients,
The seat plate presser has a contact portion with which the seat plate contacts from above, and an extension portion extending outward in the thickness direction of the shutter curtain from the contact portion, and the contact portion The upper surface of the extending portion is discontinuous with the upper surface of the extending portion due to a vertical step, and when the seat plate is bent and deformed in the thickness direction of the shutter curtain, the riding tool rides on the extending portion. A seat plate holding device for a shutter device, wherein a height dimension of the upper surface gradually increases as the extension portion extends outward in the thickness direction of the shutter curtain. 7. The seat plate holding device for a shutter device according to claim 6, wherein a friction member is provided on the lower surface of the seat plate presser for increasing a frictional force with the lower surface forming member. Seat plate holding device for shutter device. In the seat plate holding device for a shutter device according to claim 6 or 7, a lower surface of the mounting tool and a side surface of the seat board holding tool on the extending portion side of the mounting tool are arranged such that the lower surface and the side surface of the mounting tool are connected to each other. A seat plate holding device for a shutter device, characterized in that the parts are connected by a curved surface that smoothly connects the parts. In the seat plate holding device for a shutter device according to any one of claims 6 to 8, at least one of the riding tool and the extending portion of the seat plate holding device has a small frictional force with the other. 1. A seat plate holding device for a shutter device, characterized in that a friction reducing member is provided to reduce friction. In the seat plate holding device for a shutter device according to claim 6 or 7, a portion of the riding tool that rides on the upper surface of the extending portion of the seat plate holding device and a portion of the extending portion of the seat plate holding device. A seat plate holding device for a shutter device, wherein a rotating member is rotatably disposed on at least one of the portions of the upper surface on which the riding tool rides. In the seat plate holding device for a shutter device according to any one of claims 6 to 10, the extending portion extending from the contact portion of the seat plate holding tool to the outside in the thickness direction of the shutter curtain, A seat plate pressing device for a shutter device, wherein the device is provided on both sides of the shutter curtain in the thickness direction, and the mounting tool is also provided on both sides of the shutter curtain in the thickness direction.

Images