JP7604288B2 - Reinforcement device and method for shutter curtain in building shutter device - Google Patents

Description

The present invention relates to the technical field of a reinforcing device and a reinforcing method for a shutter curtain in a building shutter device that is installed to open and close openings such as entrances and exits of buildings.

Nowadays, shutter devices for buildings are sometimes installed at openings such as entrances and exits inside and outside buildings (structures) such as buildings, which open and close the openings by guiding a shutter curtain up and down on guide rails arranged on the left and right. The shutter curtains installed in such shutter devices are directly affected by the weather outside, including strong winds that occur during bad weather such as typhoons and torrential rains, and the shutter curtains are required to be able to withstand such strong winds.
However, when a shutter curtain is hit by a strong wind, the central part of the shutter curtain can bend (depress) toward the indoor or outdoor side, causing the left and right edges to come out of the guide rail. To address this problem, wind-resistant hooks are provided on both the left and right ends of the shutter curtain, and when the shutter curtain is bent by a strong wind, these wind-resistant hooks are engaged with engaging portions provided within the guide rail to prevent the shutter curtain from bending. This prevents the shutter curtain from coming out of the guide rail, thereby improving wind resistance.
Although it is possible to provide the necessary wind resistance by providing wind-resistant hooks in this manner, some existing shutter devices are not provided with wind-resistant hooks, and in the case of shutter devices installed at large openings, wind-resistant hooks alone are not sufficient to provide sufficient wind resistance to withstand the onset of large typhoons, etc., so in order to accommodate shutter devices in such cases, it has been proposed to provide reinforcing posts on at least one of the inside and outside of the shutter curtain in the closed position, and the shutter curtain that has been bent by a strong wind comes into contact with and is supported by the reinforcing posts, preventing the shutter curtain from bending too much, thereby preventing the shutter curtain from slipping out of the guide rail and providing wind resistance (see, for example, Patent Documents 1 and 2).

Patent No. 4697644 Patent No. 5489044

However, all of these systems are designed so that the shutter curtain, when bent by strong winds, comes into direct contact with the reinforcing posts themselves to support them. In order to withstand the strong winds expected in the event of a large typhoon, it is necessary to increase the strength of the reinforcing posts by making them thicker in diameter (width), etc. However, when the strength of the reinforcing posts is increased in this way, the reinforcing posts become large and heavy, which requires laborious work to move them to the reinforcing position midway between the left and right of the opening, and to set them up in an upright position (reinforcing position), resulting in poor workability, and these are the issues that the present invention aims to solve.

The present invention was created in consideration of the above-mentioned actual situation and with the aim of solving these problems. The invention of claim 1 is a shutter device for a building in which a shutter curtain, which is guided by guide rails provided on the left and right sides of an opening in a building to open and close the opening, is set up vertically between the top and bottom of the opening at a reinforcing position in the middle of the left-right direction of the opening, and both upper and lower end edges are reinforced via reinforcing posts supported on both the top and bottom sides of the opening, wherein a reinforcing vertical member is integrally provided on the reinforcing post on the surface facing the shutter curtain in a state where it closely faces the shutter curtain in the closed state so that the shutter curtain that is bent by a strong wind can come into contact with and receive it, and the close facing of the reinforcing vertical member to the shutter curtain is based on the shutter core of the shutter curtain that opens and closes, and exceeds the front-to-back width of the magus part that serves as the outlet for the shutter curtain to the opening .
The invention of claim 2 is a shutter device for a building in which a shutter curtain, which is guided by guide rails provided on the left and right sides of an opening in a building to open and close the opening, is set up vertically between the top and bottom of the opening at a reinforcing position in the middle of the opening in the left-right direction, and whose upper and lower end edges are reinforced via reinforcing posts supported on both the top and bottom sides of the opening, wherein a reinforcing vertical member is integrally provided on the shutter curtain facing surface of the reinforcing post in a state close to the shutter curtain in the closed state so that the shutter curtain bent by a strong wind can come into contact with and be supported thereon, and the reinforcing vertical member is a long member whose lower edge is located at the lower edge of the reinforcing post and whose upper edge is at a low position that does not reach the upper edge of the reinforcing post.
The invention of claim 3 is a reinforcing device for a shutter curtain in a shutter device for a building as described in claim 2 , characterized in that the upper edge of the reinforcing vertical member is set to be positioned higher than half the height of the opening width.
The invention of claim 4 is a shutter device for a building in which a shutter curtain, which is guided by guide rails provided on the left and right sides of an opening in a building to open and close the opening, is set up vertically between the top and bottom of the opening at a reinforcing position in the middle of the opening in the left-right direction, and whose upper and lower end edges are reinforced via reinforcing posts supported on both the top and bottom sides of the opening, wherein a reinforcing vertical member is integrally provided on the reinforcing post on the surface facing the shutter curtain in close proximity to the shutter curtain in the closed state so that the shutter curtain can come into contact with and receive the shutter curtain that has been bent by a strong wind, and the upper end edge of the reinforcing vertical member forms an inclined surface that slopes downwardly toward the shutter curtain.
The invention of claim 5 is a shutter device for a building in which a shutter curtain, which is guided by guide rails provided on the left and right sides of an opening in a building to open and close the opening, is set up vertically between the top and bottom of the opening at a reinforcing position in the middle of the opening in the left-right direction, and whose upper and lower end edges are reinforced via reinforcing posts supported on both the top and bottom sides of the opening, wherein a reinforcing vertical member is integrally provided on the reinforcing post on the surface facing the shutter curtain in close proximity to the shutter curtain in the closed state so that the shutter curtain can come into contact with and receive the shutter curtain that is bent by strong winds, and the lower edge of the reinforcing vertical member forms an inclined surface that slopes toward the shutter curtain as it approaches the upper side, which is a shutter curtain reinforcing device in a shutter device for a building.
The invention of claim 6 is a reinforcing device for a shutter curtain in a shutter device for a building described in any one of claims 1 to 5 , characterized in that the reinforcing post is provided with an upper roller that runs on an upper rail provided at the upper end of the opening and a lower roller that runs on the floor surface at the lower end of the opening, and moves between a storage position close to the guide rail and the reinforcing position.
The invention of claim 7 is a shutter device for a building in which a shutter curtain, which is guided by guide rails provided on the left and right sides of an opening of a building to open and close the opening, is set up vertically between the top and bottom of the opening at a reinforcing position in the middle of the opening in the left-right direction, and whose upper and lower end edges are reinforced via reinforcing posts supported on both the top and bottom sides of the opening, wherein a reinforcing vertical member is integrally provided on the reinforcing post's facing surface against the shutter curtain in the closed state, in a state in which the shutter curtain comes into contact with and can be supported when the shutter curtain is bent by a strong wind, and the reinforcing post is configured to include an upper support portion and a lower support portion supported on the upper support portion so that the shutter curtain can move up and down freely, and a reinforcing vertical member is provided on the lower support portion,
The invention of claim 8 is a reinforcing device for a shutter curtain in a shutter device for a building as described in claim 7 , characterized in that the lower support portion moves up and down while being loosely fitted externally onto the upper support portion, and the reinforcing vertical member is set so that its upper edge is positioned lower than the lower edge of the upper support portion.
The invention of claim 9 is a reinforcing device for a shutter curtain in a shutter device for a building described in any one of claims 1 to 8 , characterized in that the reinforcing support is set so that the bent shutter curtain does not abut against the reinforcing vertical member and is received by abutting against the reinforcing vertical member.
The invention of claim 10 is a reinforcing device for a shutter curtain in a shutter device for a building according to any one of claims 1 to 9, characterized in that a cushioning material is provided on the surface of the reinforcing vertical member facing the shutter curtain.
The invention of claim 11 is a shutter device for a building in which a shutter curtain, which is guided by guide rails provided on the left and right sides of an opening of a building to open and close the opening, is set up vertically between the top and bottom of the opening at a reinforcing position in the middle of the left-right direction of the opening, and is reinforced via reinforcing posts whose upper and lower end edges are supported on both the top and bottom sides of the opening, wherein a reinforcing vertical member is integrally provided on the reinforcing post on the facing surface of the shutter curtain in a state close to and facing the shutter curtain in the closed state so that the shutter curtain, which is bent by a strong wind, can abut against it and be received, and the reinforcing vertical member is a long member whose lower edge is located at the lower edge of the reinforcing post and whose upper edge is at a low position that does not reach the upper edge of the reinforcing post, and the shutter curtain, which is bent by a strong wind, is abutted against the reinforcing vertical member without abutting against the reinforcing post, and the shutter curtain, which is bent by a strong wind, is abutted against the reinforcing vertical member and received, so that the load during the receiving is received more heavily in the lower part of the opening than in the upper part .

By adopting the invention of claim 1, the shutter curtain is reinforced by a vertically oriented reinforcing pillar, and the reinforcing pillar has a reinforcing vertical member integrally attached to the surface facing the shutter curtain in close proximity to the shutter curtain, thereby providing reinforcement without increasing the size, resulting in excellent operability.
Furthermore, since the reinforcing vertical member faces the shutter curtain closely beyond the width of the foldable section, it is possible to prevent the shutter curtain from accidentally abutting against the reinforcing vertical member when the shutter curtain is opened or closed with the reinforcing post set in the reinforcing position.
By adopting the invention of claim 2, the shutter curtain is reinforced by a vertically oriented reinforcing pillar, and the reinforcing pillar has a reinforcing vertical member integrally attached to the surface facing the shutter curtain in close proximity to the shutter curtain, thereby providing reinforcement without increasing the size, resulting in excellent operability.
Furthermore, since the lower edge of the reinforcing vertical member is located at the lower edge of the reinforcing column and the upper edge is located at a low position that does not reach the upper edge of the reinforcing column, the load that the reinforcing column receives when the bent shutter curtain abuts against it is acted on more heavily on the lower edge and less heavily on the upper edge side, which is the foldable part.As a result, the reinforcing column is supported by the stronger floor surface below, resulting in increased reinforcement.
By adopting the invention of claim 3, the reinforcing vertical member is set to be positioned higher than 1/2 of the width height, so that the shutter curtain comes into contact with and is supported at 1/2 of the width height, where the amount of bending of the shutter curtain is greatest when subjected to strong winds, thereby ensuring reliable support and support of the shutter curtain.
By adopting the invention of claim 4, the shutter curtain is reinforced by a vertically oriented reinforcing pillar, and the reinforcing pillar has a reinforcing vertical member integrally attached to the surface facing the shutter curtain in close proximity to the shutter curtain, thereby providing reinforcement without increasing the size, resulting in excellent operability.
Furthermore, when the shutter curtain is lowered with the reinforcing pillar set in the reinforcing position, it is possible to avoid a problem in which the lowest seat plate of the shutter curtain gets caught on the upper edge of the reinforcing vertical member, impairing smooth lowering operation.
By adopting the invention of claim 5, the shutter curtain is reinforced by a vertically oriented reinforcing pillar, and the reinforcing pillar has a reinforcing vertical member integrally attached to the surface facing the shutter curtain in close proximity to the shutter curtain, thereby providing reinforcement without increasing the size, resulting in excellent operability.
Furthermore, when the shutter curtain is raised with the reinforcing pillar set in the reinforcing position, it is possible to avoid a problem in which the lowest seat plate of the shutter curtain gets caught on the lower edge of the reinforcing vertical member, impairing smooth raising operation.
According to the invention as defined in claim 6, the reinforcing post provided with the reinforcing vertical member can be smoothly moved between the storage position on the guide rail side and the reinforcing position, thereby improving operability.
By adopting the invention of claim 7, the shutter curtain is reinforced by a vertically oriented reinforcing pillar, and the reinforcing pillar has a reinforcing vertical member integrally attached to the surface facing the shutter curtain in close proximity to the shutter curtain, thereby providing reinforcement without increasing the size, and resulting in excellent operability.
Furthermore, since the reinforcing vertical member is attached to the lower support section which is supported by the upper support section so that it can move up and down freely, when there is an unevenness on the floor surface the reinforcing vertical member expands and contracts to accommodate the unevenness, making the movement of the reinforcing support smooth and easy. In addition, when the bent shutter curtain comes into contact with it, the load is borne by the lower support section via the reinforcing vertical member, providing reliable support and reinforcement on the floor side.
By adopting the invention of claim 8, the lower support portion is externally fitted onto the upper support portion in a loose fit state, so that the load received when the bent shutter curtain abuts against the reinforcing vertical member acts directly on the lower support portion supported on the floor surface, and the load acting on the upper support portion is reduced, thereby improving the reinforcing performance.
By adopting the invention of claim 9, the shutter curtain that has been bent by strong winds is received by abutting against the reinforcing vertical member without abutting against the reinforcing support, so that the shutter curtain bends in a restricted manner so that the amount of bending does not reach the reinforcing support, thereby improving the effect of preventing the shutter curtain from coming off the guide rail due to bending deformation.
By adopting the invention of claim 10, a cushioning material is provided on the surface of the reinforcing vertical member facing the shutter curtain, which makes it possible to absorb the impact when the bent shutter curtain abuts against the reinforcing vertical member, thereby preventing the generation of noise and damage to the reinforcing vertical member and the shutter curtain.
By adopting the invention of claim 11 , the shutter curtain that is bent due to strong winds is received by abutting against the reinforcing vertical member without abutting against the reinforcing support, so that the amount of bending of the shutter curtain is suppressed so that it does not reach the reinforcing support, thereby improving the effect of preventing the shutter curtain from coming off the guide rail due to bending deformation.
Furthermore , when the shutter curtain is bent by a strong wind and comes into contact with the reinforcing vertical member without coming into contact with the reinforcing post, the load is received largely by the lower part supported by the floor surface rather than the upper part of the reinforcing post, resulting in highly stable reinforcement.

2 is a front view of a shutter device for a building with the reinforcing column positioned in the stored position. FIG. 1 is a front view of a shutter device for a building with the reinforcing column positioned in the reinforcing position. FIG. FIG. 2 is a side view of a shutter device for a building. A side view of the upper end portion of the building shutter device. A side view of the lower end portion of the building shutter device. FIG. 2 is a side view of an upper end portion at a reinforcement position of the reinforcement device. FIG. 4 is a front view of the upper end portion of the reinforcement device. 7A and 7B are cross-sectional views taken along lines II and II-II in FIG. 7A and 7B are cross-sectional views taken along lines III-III and IV-IV in FIG. 7A and 7B are cross-sectional views taken along lines VV and VI-VI in FIG. 13 is a front view of the upper end portion of the reinforcement device with the reinforcement pillar positioned in the storage position. FIG. 1 is a front view of an upper end portion of a reinforcement device with a reinforcement strut positioned at a reinforcement position. FIG. 13A and 13B are a plan view and a side view of the upper end portion of the reinforcement device when the reinforcement pillar is positioned at the reinforcement position. A plan cross-sectional view showing the state in which the reinforcing column located in the storage position is engaged with the main body. 1A, 1B, 1C, and 1D are a plan view, a front view, a side view, and a sectional front view showing the recess with the lid open. 13A and 13B are schematic explanatory views showing the assembly procedure for the first half of the reinforcement device. 13A and 13B are schematic explanatory views showing the latter half of the assembly procedure of the reinforcement device. FIG. 13 is an explanatory diagram showing the state in which a shutter curtain bent by a strong wind abuts against a reinforcing vertical member. FIG. FIG. 11 is a cross-sectional side view of a shutter device according to a second embodiment. FIG. FIG. FIG. FIG. 1A and 1B are a plan view and a front view of the upper rail. 1A and 1B are a bottom view and a side view of the upper rail.

The following describes an embodiment of the present invention with reference to the drawings. In the drawings, reference numeral 1 denotes a shutter device for a building that is installed in an opening E such as an entrance or exit of a building or the like. The shutter device 1 is constructed using various components and devices, such as guide rails 2 provided on the left and right sides of the opening E, a shutter curtain 3 that is guided up and down by the guide rails 2 to open and close the opening E, a winding body (winding wheel, winding drum) 4 provided in the ceiling space H of the opening E and on which the shutter curtain 3 is wound, an opening/closing machine 5 that is electrically driven to rotate the winding body 4 forward and backward to wind the shutter curtain 3, and a shutter case 6 provided in the ceiling space H to house the winding body 4, all of which are conventional.

Furthermore, the shutter case 6 is provided with left and right brackets 6a whose outdoor end is supported and fixed to a wall W arranged outside of the guide rail 2 and above the opening E, and the left and right end edges of the winding body 4 are supported by the left and right brackets 6a, but the shutter case 6 is further reinforced by various members such as a U-shaped reinforcing frame 6b whose upper outdoor end is supported by the wall W, a reinforcing cross bar 6c supported between the left and right brackets 6a, and a rib frame 6d provided in the rib part M that serves as the outlet for the shutter curtain 3 to be unrolled from the shutter case 6 and that engulfs the seat plate 3a provided at the lowest end of the shutter curtain 3. The shutter case 6 is also box-shaped due to the presence of an upper panel, side panels, and lower panel, and the case lower panel 6e is fixed to the lower side part of the reinforcing frame 6b and the rib frame 6d.
On the other hand, a U-shaped frame (three-sided frame) is provided on the underside of the wall W, including both the left and right side portions of the opening E, and the upper frame 7 of the frame is provided in a state where it is flush with the case lower plate 6e. In this embodiment, a pair of reinforcing devices 8 for reinforcing the shutter curtain 3 is provided symmetrically on the inside and outside of the shutter curtain 3, with the shutter core X along which the shutter curtain 3 opens and closes as the symmetric core.

In this manner, in this embodiment, a pair of inner and outer reinforcing devices 8 are provided. However, since the pair of reinforcing devices 8 are symmetrical indoors and outdoors (front and back) with the shutter core X as the symmetrical center, the following describes in detail the indoor reinforcing device 8, and an explanation of the outdoor reinforcing device 8 will be omitted unless specifically required.
By installing the reinforcing device 8 both indoors and outdoors in this manner, the reinforcing effect can be made even greater; however, it goes without saying that in implementing the present invention, the reinforcing device 8 may be installed either indoors or outdoors, and whether the reinforcing device 8 is installed on both the indoors and outdoors or on only one of them can be selected as appropriate according to need.

Furthermore, two sets of reinforcing devices 8 may be provided on both the left and right sides of the opening E, and the two reinforcing positions in the middle of the left and right direction of the shutter curtain 3 may be reinforced with reinforcing posts 11 (described later) (in this case, the reinforcing positions do not necessarily have to be set at equal intervals of 1/3 each in the left and right direction). The present invention can also be implemented by providing a plurality of reinforcing posts 11 (e.g., two) on one set of reinforcing devices 8 to reinforce the shutter curtain 3 at appropriate intervals in the left and right direction. In this case, the upper rail 9 (described later) can be made to have a maximum width that spans the entire left and right width of the opening E, and in this case, the reinforcing posts 11 can be configured to be stored in a state where they are separated on the left and right.

The reinforcing device 8 is configured with an upper rail 9 provided on the case bottom plate 6e, which is C-shaped and includes an upper piece 9a that serves as a straddling portion, side pieces 9b that are bent downward to hang down from both front and rear ends of the upper piece 9a, and a pair of front and rear lower pieces 9c that are bent in the front-rear direction from the lower ends of the side pieces 9b to face each other. The upper piece 9a of the upper rail 9 is fixed to the case bottom plate 6e via a fixing member such as a screw (not shown). The fixing position is preferably the position of a reinforcing member such as the left and right brackets 6a or reinforcing frame 6b of the shutter case 6, but it may of course be fixed directly to the case bottom plate 6e if the case bottom plate 6e has the necessary strength.

The upper rail 9 has a pair of lower pieces 9c which serve as the running surface 9c of the upper roller 15 described later, and the gap Y formed between the opposing running surface pieces 9c in the fore-and-aft direction constitutes a guide portion (penetrating portion) Y for guiding the support main body portion 14 described later in a penetrating state from side to side.
The upper rail 9 is further reinforced by the incorporation of an L-shaped auxiliary member 10, the vertical piece 10a of which is arranged in an overlapping (laminated) state in which it abuts against the side piece 9b.
When the upper rail 9 is attached in this manner, a running space is formed between the running surface 9c and the lower piece 10b of the auxiliary member 10 in which the upper roller 15 runs; however, this running space allows the upper roller 15 to move upward slightly; in other words, there is a slight gap between the upper roller 15 running on the running surface 9c and the lower piece 10b of the auxiliary member, and is set so that the upper roller 15 is prevented from rising up more than necessary from the running surface 9c, thereby preventing (preventing) the reinforcing support 11, which moves left and right, from tilting in the left and right direction.

The upper rail 9 configured in this manner has one end which serves as a storage position for the reinforcing post 11 adjacent to either the left or right guide rail 2, and the other end which is located at the middle position in the left-right direction of the opening (for example, the center position in the left-right direction), thereby serving as a reinforcing position for the shutter curtain 3 by the reinforcing post 11.
The other edge of the upper rail 9 is an open opening edge 9e, and an inverted L-shaped mounting bracket 9f is provided on the upper piece 9a of the opening edge 9e. With a blocking plate 9g placed against the opening edge 9e, a screw 9h can be screwed from the blocking plate 9g into the mounting bracket 9f to allow the opening edge 9e to be blocked in a detachable manner.

On the other hand, the reinforcing pillar 11 is configured to be connected in a continuous manner in the vertical direction using an upper pillar portion 12 and a lower pillar portion 13 .
The upper support section 12 is further constructed using a support body section 14 having a rectangular tube shape, the lower edge of which is short to the upper part of the reinforcing support 11, and the front and rear surface sections 14a of the support body section 14 pass through the guide section Y of the upper rail 9 in a loosely fitted state. At the upper end of the front and rear surface sections 14a of the penetrated support body section 14, a bracket 14b is provided that is set longer in the left and right direction than the support body section 14 (so as to protrude in the left and right direction relative to the support body section 14) and is located above the running surface section 9c, and the upper rollers 15 that run on the running surface section 9c as described above are provided at both left and right ends of the bracket 14b. By configuring in this way, the left and right upper rollers 15 are provided in a wide state protruding in the left and right direction relative to the reinforcing support 11, preventing the reinforcing support 11 from tilting in the left and right direction.
Furthermore, on both the front and rear surface portions 14a of the pillar main body portion 14, a guide surface portion 16 is provided adjacent to the underside of the bracket 14b and set longer in the left-right direction than the pillar main body portion 14, in a state where it is close to the inner end edges of the running surface portion 9c that face each other in the front-to-rear direction (loosely fitted into guide portion Y).Thus, the reinforcing pillar 11 is set so that it can be moved and guided in the left-right direction while the guide surface portion 16 that is long in the left-right direction and provided on the pillar main body portion 14 is guided in a state where it is close to and faces the tip edge portion of the running surface portion 9c.

Furthermore, the guide surface portion 16 is secured to the pillar main body portion 14 by a fixing means such as welding at both left and right piece portions 17b of a reinforcing member (first reinforcing member) 17, the straddling portion 17a of which is fixed to the left and right surface portions 14c of the pillar main body portion 14, thereby reinforcing the guide surface portion 16 against the pillar main body portion 14.
In addition, in this embodiment, the bracket 14b has its upper and lower edge portions welded to the front and rear surface portions 14a of the pillar main body portion 14, and for this reason, the guide surface portion 16 has a cutout portion 16a formed in the portion corresponding to the pillar main body portion 14, so that the lower edge portion of the bracket 14b can be welded even after the guide surface portion 16 is attached to the pillar main body portion 14.

Furthermore, a wide outer shell 18 is provided on the pillar main body 14 and is positioned below the guide surface 16, but the lower edge of the outer shell 18 is shorter than the pillar main body 14.As a result, although the pillar main body 14 is short and reaches the upper part of the reinforcing pillar 11 as described above, its lower end extends (protrudes) downwardly beyond the outer shell 18.
The outer casing 18 has a rectangular cylindrical shape that fits loosely around the pillar main body 14, with the areas corresponding to the front and rear face sections 14a and the left and right face sections 14b of the pillar main body 14 forming groove sections 18a, the bottom of which abuts against the front and rear face sections 14a and the left and right face sections 14b and is integrated by a fixing means such as welding. By configuring it in this manner, the corner sections 18b of the outer casing 18 are wide sections spaced apart from the pillar main body 14.
In this embodiment, the outer shell 18 has a structure in which a hat-shaped cross-sectional plate material 18c in which the groove portion 18a is formed and an L-shaped plate material 18d are integrated together by a fixing means such as welding.

On the other hand, the lower support portion 13, which is a component of the reinforcing support 11, has a rectangular tubular shape and is wider than the outer shell portion 18, and the support body portion 14 and outer shell portion 18 of the upper support 13 are fitted (inner fitted) into the upper end portion of the lower support portion 13 in a loose fit state that allows them to move up and down (flexibly, freely insert and remove, freely go in and out, and freely appear and disappear). In other words, the lower support portion 13 is fitted externally to the upper support portion 13 in a state where it is externally fitted and can move up and down.
Of the left and right surface portions 14c of the pillar main body portion 14, an extension portion 14d that extends downward below the lower edge of the outer shell portion 18 has a sphere 14e arranged in close proximity to (or in contact with) the inner surface of the left and right surface portions 13a of the lower pillar portion 13, and the sphere 14e is supported so as to be freely rotatable in all directions via brackets 14f provided on the left and right surface portions 14c of the pillar main body portion.
Furthermore, when the lower support portion 13 is tilted relatively in the left-right direction with respect to the upper support portion 12, the sphere 14e constitutes abutment member that is abutted against the inner surface of the left and right surface portions 13a of the lower support portion 13 to regulate the left-right tilt between the upper support portion 12 and the lower support portion 13. However, as long as it regulates the tilt, a fixed protrusion or a roller body (rotating body) instead of a sphere may of course be used.
In this embodiment, such abutment members are provided on both the left and right surfaces 14b of the support body 14, but they may also be provided on both the front and rear surfaces 14a if necessary.

Furthermore, the upper support portion 12 is provided with a cover portion 19 for covering the upper end portion of the lower support portion 13. This cover portion 19 has a top surface portion 19a that is wider in the front-to-back and left-to-right directions than the lower support portion 13 so as to cover the upper part of the upper end of the lower support portion 13, and side surfaces 19b that hang down from the peripheral portion of the top surface portion 19a and loosely cover the outer periphery of the left-to-right and front-to-back surface portions 13a and the front-to-back surface portions 13b of the lower support portion 13, and are configured to prevent rainwater, etc. from entering through the upper end of the lower support portion 13.
Incidentally, in this embodiment, the cover portion 19a has a protrusion 19c formed at the edge portion facing the front and rear surface portions 14a of the pillar main body portion 14 of the top surface portion 19a, which protrudes upward from the top surface portion 19a for welding the cover portion 19 to the pillar main body portion 14.

The lower surface 13c at the lower end of the lower support 13 is provided with a lower roller 20 that runs on the floor surface (floor surface) F. The lower roller 20 is mounted on a bracket 20a attached to the lower surface 13c in such a way that it can move freely in the left-right direction without being able to change direction around the vertical axis. In this embodiment, the lower rollers 20 are mounted on the lower surface 13c as a pair, misaligned in the front-back and left-right directions. 20b is an operating lever for locking the running (rolling) of the lower roller 20. In this embodiment, the operating lever 20b is provided on only one of the lower rollers 20, but it can also be provided on both if necessary.

Furthermore, in this embodiment, a reinforcing vertical member 29 (described later) is provided on the surface portion (front-to-rear inner surface portion) of the front and rear double-sided portions 13b of the lower support portion 13 facing the shutter curtain 3 so as to face closely to the shutter curtain 3, thereby reinforcing the reinforcing support portion 11 and enabling the shutter curtain 3, which is bent due to strong winds, to be supported by directly abutting against the reinforcing vertical member 29.
The reinforcing pillar 11, which connects the upper support portion 12 and the lower support portion 13 in this manner so that it can freely expand and contract in the vertical direction, is configured so that the upper rollers 15 provided on the upper support portion 12 are guided to run in the horizontal direction on the upper rail 9, and the lower rollers 20 provided on the lower support portion 13 run in a straight line in the horizontal direction on the surface (floor surface) of the floor F, allowing it to move horizontally between a storage position adjacent to the guide rail 2 on one end of the opening and a reinforcement position midway in the horizontal direction.

Furthermore, the upper rail 9 is provided with a reinforcing member (second reinforcing member) 21 at a position corresponding to the reinforcing position of the reinforcing column 11. The reinforcing member 21 is provided on one side piece 9b of the upper rail 9 in the front-rear direction (opposite the side where the shutter curtain 3 is arranged (the shutter core X side)), but it can also be provided on the other side piece 9b (the shutter curtain 3 side) or on both side pieces 9b. The reinforcing member 21 is an inverted L-shaped plate material with a vertical piece 21a welded to the side piece 9b of the upper rail 9 and an upper piece 21b fixed to the case bottom plate 6e with a screw (not shown), and the reinforcing member 21 further has reinforcing pieces 21c welded to the vertical piece 21a and the upper piece 21b at intervals in the left-right direction.
In this device, an L-shaped bracket 22a is fixed to the vertical piece 21a, and a hanging fitting 22 having an arc-shaped (can be made into a hook-like or other appropriate shape) engaging portion is provided on the bracket 22a so as to be freely attached and detached.

Furthermore, the reinforcing pillar 11 is provided with support members 23, 24 on both the upper and lower sides to position and support both the upper and lower ends when in the reinforcing position, and both of these support members 23, 24 are provided on the lower pillar portion 13.
In this embodiment, the upper support member 23 is provided on the surface (indoor side surface) of the front and rear surface parts 13b of the lower support part 13 opposite to the surface facing the shutter curtain 3, but can be provided on any surface selected from the left and right and front and rear surface parts 13a, 13b of the lower support part 13. A plurality of cylindrical support fittings 23a constituting the upper support member 23 are attached to one of the left and right surface parts 13a on the indoor side of the lower support part 13 (the guide rail 3 side in this embodiment) via brackets 23b, and a linear rod-shaped body 23c passes through the support fitting 23a so as to be movable in the vertical direction. Below the lowest support fitting 23a among the support fittings 23a, a pair of upper and lower holding fittings 23d, 23e are attached to the front and rear surface parts 13b to hold the rod-shaped body 23c in the vertical position.
The lower retaining bracket 23e is flat to receive and support the lower edge of the rod-shaped body 23c, but in this embodiment it is magnetized (the lower retaining bracket 23e may be directly magnetized, or may be magnetized by attaching a magnet, etc.) and is configured to magnetically hold the lower edge of the rod-shaped body 23c.

A flange portion 23f extending in the horizontal direction is provided at the lower end edge of the rod-shaped body 23c, while a through groove 23g is formed in the upper holding fitting 23d so that when the flange portion 23f is rotated in the front-rear direction while the rod-shaped body 23c is in a penetrated state in which it is free to move up and down, the flange portion 23f can be penetrated in the up-down direction, but when the flange portion 23f is rotated in the left-right direction, the flange portion 23f is locked and cannot be penetrated. Incidentally, the upper holding fitting 23d can also be magnetized, so that the flange portion 23f does not fall off the upper holding fitting 23d inadvertently.
When the reinforcing post 11 is positioned in the reinforcement position and the flange portion 23f is held by the lower retaining bracket 23e, the rod-shaped body 23c is in a non-positioned position in which the upper edge portion 23h is located below the upper rail 9. However, by holding the flange portion 23f by the upper retaining bracket 23e, the rod-shaped body 23c is in a positioned position in which the upper edge portion 23h is closely opposed to the stopper piece 9i provided on the upper rail 9, and when in this positioned position, the upper edge portion of the reinforcing post 11, which is positioned in the reinforcement position, is prevented from moving toward the storage position.
In this embodiment, a second stopper piece 9j is provided on the upper rail 9 to restrict the reinforcing column 11 from moving toward the reinforcing position when the column 11 is in the stored position.

On the other hand, in this embodiment, the lower support member 24 is provided on the surface opposite the shutter curtain 3 (shutter core X) (the surface on the outer side in the left-right direction) of the front and rear surface portions 13b of the lower support portion 13, but, as in the case of the upper support member 23, it can be provided on any surface selected from the left-right front and rear surface portions 13a, 13b of the lower support portion 13.
The lower support member 24 is constituted by a support bracket 24a having a square cylindrical shape with a top, which is attached to one of the faces 13b in the front-to-rear direction of the lower support portion 13. A rod-shaped body (actuating body) 24b having a square cylindrical shape with a top is fitted into the support bracket 24a so as to be able to move freely in the vertical direction.

A long hole 24d is formed in one side surface 24c in the left-right direction of the support bracket 24a, and an operating body 24e is provided on the rod-shaped body 24b in a state of penetrating the long hole 24d, and an operating screw 24g is further provided on the indoor side surface 24f of the support bracket 24a. When the operating screw 24g is tightened in a state in which the rod-shaped body 24b has been moved upward above the floor surface F, the tip of the operating screw 24g comes into contact with the rod-shaped body 24b in a pressing manner, thereby restricting its vertical movement and fixing it in a fixed state, and when the operating screw 24g is loosened, vertical movement including descent under its own weight is permitted, and when the rod-shaped body 24b has descent under its own weight, it can be lifted up along the long hole 24d by grasping the operating body 24e.
When the rod-shaped body 24b is lowered under its own weight with the reinforcing column 11 in the reinforcing position, the rod-shaped body 24b fits into the drop-in portion 25 described below, assuming a positioning posture that supports and positions the lower end of the reinforcing column 11, thereby restricting its movement toward the storage position. However, the upper edge of the rod-shaped body 24b in the lowered state under its own weight is set to be positioned lower than the operating screw 24g. Therefore, when the rod-shaped body 24b is in the positioning posture in which it has been lowered under its own weight, the operating screw 24g is screwed deep into the support bracket 24a to overlap (position) the tip of the screw above the rod-shaped body 24b, thereby restricting the upward movement of the rod-shaped body 24b from coming out of the drop-in portion 25, thereby preventing the rod-shaped body 24b from coming out of the drop-in portion 25 and being released from its position.

On the other hand, the recess 25 is formed so as to be embedded in a mounting hole Z drilled in a portion of the floor surface F corresponding to the reinforcement position, and the recess 25 is composed of a main body 25a, a lid 25b, and a flange 25c. The main body 25a has a bottomed rectangular cylindrical shape, and protruding surface portions 25e are further formed on the left and right outer sides of both the left and right side portions 25d.
On the other hand, the flange portion 25c is assembled to the upper edge of the main body portion 25a, and an opening 25f is formed so that the cover portion 25b can be attached and detached freely. One edge portion 25g of the opening 25f in the left-right direction extends to the protruding surface portion 25e, while the other edge portion 25h extends to the other side surface portion 25d.
The lid 25b is fitted into the opening 25f and is set to close (cover) the opening 25f while being flush with the flange 25c, and an auxiliary plate 25i is provided adjacent to the lower side of the lid 25b. The auxiliary plate 25i is configured to support the lid 25b against the main body 25a, with both left and right edge portions placed on the notches 25j formed in the left and right side portions 25d of the main body when the opening 25f is closed by the lid 25b.

Furthermore, the cover 25b is provided on its upper surface with an operating section 25k having a recessed groove formed therein that can be rotated by inserting a screwdriver or the periphery of a coin (e.g., a 10-yen coin), and a locking piece 25l is provided at the lower end of the operating section 25k. By rotating the operating section 25k, the locking piece 25l fits into a locking hole 25m formed in one of the body side sections 25d, and can be operated from a locked position where it is locked so as not to come off to an unlocked position where it comes out of the locking hole 25m and is in an unlocked state so that the cover 25b can be removed.
In this embodiment, when the lid portion 25b is removed while being unlocked by operating the operating portion 25k, it is configured so that the tip portions of the lid portion 25b and the auxiliary plate 25i can be temporarily held in place by inserting them between one of the main body side portions 25d and the protruding surface portion 25e.

The reinforcement device 8 for the shutter curtain 3, including the reinforcing pillar 11 embodying the present invention, can be installed at the same time as a newly installed shutter device 1 is set up in the opening E, but it can also be easily installed as an add-on to an existing shutter device 1, and the assembly procedure (method) is described below.
When assembling to an existing shutter device 1, the parts that need to be transported to site and prepared are the respective components of the reinforcing post 11, upper rail 9, and drop-in portion 25, and of these parts transported to site, the first step is to carry out the rail installation process, in which the upper rail 9 is attached to the top of the opening E.
Next, a post installation process is carried out to install the reinforcing post 11 into the upper rail 9, but if the upper rail 9 installed in the rail installation process was transported to the site with its opening edge 9e on the reinforcing position side blocked by a blocking plate 9g, the blocking plate 9g is removed to open the opening edge 9e, and the upper roller 15 provided at the upper end of the reinforcing post 11 is inserted and installed through this opening edge 9e, thereby carrying out the post installation process of the reinforcing post 11 to the upper rail 9. The execution of the post installation process of the reinforcing post 11 to the upper rail 9 also includes a process of opening and closing the opening edge 9e via the blocking plate 9g.

Furthermore, this method requires a recess formation process for forming recess 25 on floor surface F. If the position at which to form recess 25 can be accurately determined on the floor surface F at the site based on the design dimensions, then the recess formation process can be carried out regardless of whether the rail installation process or the pillar assembly process is carried out first or after. In this case, however, accurate measurement work is required to determine the recess position.
In contrast, if the support installation process has already been performed, the reinforcing support 11 incorporated in the upper rail 6 can be moved to the reinforcement position, and the rod-shaped body 24b provided on the lower support member 24 can be lowered under its own weight as described above, thereby identifying the descent location of the rod-shaped body 24b. By drilling the floor surface F at this identified descent location to provide a drop-in portion 25, the simple work of forming the drop-in portion 25 can be performed accurately without the need for troublesome measuring work.

In this way, the reinforcing device 8 for reinforcing the shutter curtain 3 can be installed, and furthermore, the reinforcing post 11 can be installed in the upper rail 6 by utilizing the upper rail 6.
As described above, the upper rail 6 attached to the upper part of the opening is provided with a reinforcing member 21 at a position corresponding to the reinforcing position, and a hoisting fixture 22 is removably attached to the reinforcing member 21. A simple lifting machine such as an electric hoist 26 (or a manual hoist is of course acceptable) is hooked to the hoisting fixture 22. A hook 26b attached to an operating chain 26a suspended from the hoist 26 is hooked to a hoisting fixture 27 detachably attached via a bracket 27a to the upper part of the lower support part 13 of the reinforcing support 11.
By driving the hoist 26 in this locked state and lifting the locking hook 26b, the upper end of the reinforcing column 11 is lifted at the portion corresponding to the reinforcement position, thereby making it easy to install the reinforcing column 11 into the upper rail 6 at the reinforcement position.

Next, the reinforcing vertical member 29 attached integrally to the reinforcing column 11 will be described in detail. The reinforcing vertical member 29 is attached integrally to the surface 13b of the lower column portion 13 that constitutes the reinforcing column 11, the surface 13b facing the shutter core X. The reinforcing vertical member 29 has a hat-shaped cross section, and includes a main body portion 29a that is U-shaped and narrower in the left-right direction than the lower column portion 13, and leg pieces 29b that extend outward in the left-right direction from both left and right end edges of the main body portion 29a. The leg pieces 29b are welded to one of the front and rear surface portions 13b, thereby being integrated with the lower column portion 13 and being reinforced.
The reinforcing vertical member 29 is configured so that its main body portion 29a protrudes further toward the shutter core X than the covering portion 19 and faces closely to the shutter curtain 3 in the closed position, and its upper edge portion 29c is lower than the upper edge portion 12a of the upper support portion 12 and is located at a lower position close to the covering portion 19, and its lower edge portion 29d is long and extends to a position that approximately coincides with the lower surface portion 13c of the lower support portion 13.By configuring it in this manner, the upper edge portion 29c of the reinforcing vertical member 29 is set to be lower (lower) than the upper edge portion of the upper support portion 12 that constitutes the reinforcing support 11, and higher (upper) than 1/2 the height of the opening height at the opening E.

The shutter device 1 is provided with a gusset portion M which serves as the outlet for the shutter curtain 3 from the shutter case 6 and which engulfs the seat plate 3a of the shutter curtain 3 when it is fully open. The reinforcing vertical member 29 is provided so as to face closely to the shutter core X, and is positioned so that the spanning piece portion (the opposing piece portion facing the shutter core X) 29e of the main body portion 29a faces closely to the shutter curtain 3 in the closed position, slightly (by a few mm) exceeding the gusset width L in the fore-and-aft direction at the gusset portion M based on the shutter core X.
And when the shutter curtain 3 is bent by a strong wind, as shown in Figure 19, the shutter curtain 3 on the lower end seat board 3a side is in a free end state with nothing supporting the left-right central part, so that the section beyond the vertical central part up to a height of approximately 2/3 to 3/4 of the frontage height bends significantly, and the amount of bending of the upper section above this is suppressed because there is support across the entire frontage width by the magma section M, and the shutter curtain 3 attempting to bend in this way is received by abutting against the reinforcing vertical member 29, and does not come into contact with the reinforcing pillars 11 (upper pillar section 12, lower pillar section 13).
In this embodiment, the width L of the rib cage is the same dimension as the front-to-rear width of the guide rail 2, but this is not limited to this, and the width L of the rib cage may be either wider or narrower than the front-to-rear width of the guide rail 2.

By providing the reinforcing vertical member 29 on the reinforcing pillar 11 in this manner, when the shutter curtain 3 in the fully closed position is bent by a strong wind, as described above, the bent shutter curtain 3 will not come into contact with the upper and lower support pillar portions 12, 13 that constitute the support pillar portion, but will come into contact with the reinforcing vertical member 29 that faces closely to the shutter core X and be received therein. As a result, the left and right edge portions of the shutter curtain 3 are prevented from bending and deforming to the extent that they come out of the guide rail 4, and the shutter curtain is configured to exhibit high wind resistance.
In this case, the reinforcing vertical member 29 is located at a low position from the lower end edge of the reinforcing column 11 to a position not reaching the upper edge of the reinforcing column 11, so that the load received from the shutter curtain 3 with which the reinforcing vertical member 29 abuts becomes a large load on the lower end edge side, which is supported on the floor surface F side, and the upper end edge side receives a correspondingly reduced load. In this case, the upper end edge of the reinforcing column 11 is attached to the upper rail 9 supported by the case lower panel 6e and upper frame 7 adjacent to the lid part M, and these case lower panel 6e and upper frame 7 are inevitably inferior in support strength compared to the case of the drop-in part 25 arranged on the floor part F, but even if it is supported by the upper rail 9 attached to such a part, sufficient reinforcing strength can be obtained.

In addition, in this device, the reinforcing support 11 is composed of an upper support section 12 and a lower support section 13, and a reinforcing vertical member 29 is provided on the lower support section 13, so that the member against which the shutter curtain 3 that is bent due to strong winds abuts and receives it is essentially the lower support section 13. As a result, the load to receive the bent shutter curtain 3 acts largely on the lower support section 13 side, but since the lower end edge of the lower support section 13 is supported on the floor surface F side, the load can be received even more firmly, and the load received by the upper end edge of the upper support section 12 on the upper rail 9 adjacent to the ridge section M can be reduced, thereby increasing the strength of the reinforcing device 8.

The reinforcing column 11 in which the present invention is implemented is positioned and held by the upper and lower support members 23, 24 at both the upper and lower end edges in the reinforcing position, while the reinforcing column 11 can be positioned and held in the storage position in a similar configuration. As a simple means for holding the reinforcing column 11 in the storage position, the present embodiment uses a chain 28, wire, or other connector to detachably connect the bracket 28a fixed to the lower holding portion 23e on the lower column portion 13 to the locking portion 28b on the frame member such as the guide rail 2, thereby allowing the column to be positioned and held in the storage position. Of course, a magnetic attachment or a tightening of a string may be used as a means for holding the reinforcing column 11 in the storage position.

In the present embodiment configured as described above, in the shutter device 1 for buildings that opens and closes the opening E of the building entrance or exit, when the fully closed shutter curtain 3 is bent by a strong wind, the reinforcing support 11 that is provided to abut against and receive the bent shutter curtain 3 is provided with a reinforcing vertical member 29 that is integrally provided in close proximity to the shutter curtain 3. As a result, while the shutter curtain 3 is reinforced by the vertical reinforcing support 11, the reinforcing support 11 is provided with the reinforcing vertical member 29 that is integrally provided, thereby providing reliable reinforcement without increasing the size, and improving operability.

Moreover, in this case, while the bent shutter curtain 3 is in contact with the reinforcing vertical member 29 and received by the reinforcing support 11, the reinforcing support 11 is set so that the bent shutter curtain 3 does not abut against the reinforcing support 11. As a result, the shutter curtain 3 bends in a restricted manner so that the amount of bending does not reach the reinforcing support 11, effectively preventing the shutter curtain 3 from becoming stuck on the guide rail 2 due to bending deformation.
In this structure, the reinforcing vertical member 29 is arranged so as to face closely to the shutter curtain 3. In this case, the close facing is based on the shutter core X of the shutter curtain 3 which moves to open and close, and exceeds the front-to-rear width L of the rib portion M which serves as the outlet for the shutter curtain 3 to the opening E. As a result, when the shutter curtain 3 is opened and closed with the reinforcing support 11 set in the reinforcing position, if the shutter curtain 3 which moves to open and close sways in the front-to-rear direction due to vibration or the like, the shutter curtain 3 can be opened and closed smoothly without accidentally coming into contact with the reinforcing vertical member 29 which it faces closely.

Furthermore, the reinforcing vertical member 29 has its lower edge 29d located at the underside (lower edge) 13c of the lower support portion 13 that constitutes the reinforcing column 11, and its upper edge 29c is lower than the upper edge 12a of the upper support portion 12, and is composed of a long material that reaches a position lower than the covering portion 19.As a result, the load that the reinforcing column 11 receives when the bent shutter curtain 3 abuts against it acts largely on the underside 13c of the lower support portion 13, and acts as a small load on the upper edge 12a of the upper support portion 12, which is the magus portion M side.However, the underside 13c of the lower support portion 13 receives strong and stable support from the floor surface F, and the reinforcing column 11 can provide stable reinforcement with increased strength.
In this case, the upper edge 29c of the reinforcing vertical member 29 is set to be positioned higher than 1/2 the height of the opening at the opening E, so that the 1/2 portion of the opening height of the shutter curtain 3, which is subject to greater deflection when bent by strong winds, comes into contact with and receives support thereat. This ensures that the shutter curtain 3 is supported by the reinforcing vertical member 29 without directly contacting the lower support portion 13 when bent, thereby enabling the shutter curtain 3 to be supported with high reliability.

Moreover, the reinforcing pillar 11 is provided with an upper roller 15 that runs on an upper rail 9 provided at the upper end of the opening E, and a lower roller 20 that runs on the floor surface F, and is configured to move between a storage position close to the guide rail 2 and a reinforcement position in the center in the left-right direction.As a result, even in the case of a reinforcing pillar 11 provided with a reinforcing vertical member 29, movement between the storage position and the reinforcement position is smooth, improving operability.
Furthermore, the reinforcing pillar 11 is configured to include an upper pillar portion 12 on which an upper roller 15 is mounted, and a lower pillar portion 13 supported by the upper pillar portion 12 so that it can move freely up and down, and a reinforcing vertical member 29 is provided on the lower pillar portion 13.As a result, when the bent shutter curtain 3 abuts against the reinforcing pillar 11, the load is borne by the lower pillar portion 13 via the reinforcing vertical member 29, thereby ensuring reliable support and reinforcement on the floor surface F side.

In this case, the lower support 13 is fitted loosely around the upper support 12, so that the load received when the bent shutter curtain 3 comes into contact with the reinforcing vertical member is directly received by the lower support supported on the floor surface side, and then acts on the loosely fitted upper support 12, reducing the load indirectly, thereby improving the reinforcing performance.

In this manner, in the embodiment of the present invention, in the shutter device 1 for a building which opens and closes an opening E such as an entrance or exit of a building, when a fully closed shutter curtain 3 is bent by a strong wind, the reinforcing support 11 which is provided for the bent shutter curtain 3 to abut against and receive is integrally provided with a reinforcing vertical member 29 which faces closely to the shutter curtain 3, so that the shutter curtain 3 is reinforced by the reinforcing support 11 in a vertical position. However, when the shutter curtain 3 is bent by a strong wind, it does not abut against the reinforcing support (upper and lower support portions 12, 13) 11, but is abutted against and received by the reinforcing vertical member 29 provided on the lower support portion 13, thereby reinforcing the shutter curtain 3. As a result, the amount of bending of the shutter curtain is restricted so as not to reach the reinforcing support 11, and the effect of preventing the shutter curtain 3 from coming off the guide rail 2 due to bending deformation can be improved.
Moreover, in this case, when the shutter curtain 3 bent by a strong wind comes into contact with the reinforcing vertical member 29 without coming into contact with the reinforcing post 11, the load is received largely by the lower part supported by the floor surface rather than the upper part of the reinforcing post, thereby providing highly stable reinforcement.

Of course, the present invention is not limited to the above-described embodiment, and can be implemented as a second embodiment shown in Fig. 20 and subsequent figures, which will be described below. In this embodiment, the same parts as those in the first embodiment are given the same reference numerals.
In this embodiment, the main difference from the first embodiment is the structure of the reinforcing vertical members 29.

The reinforcing vertical member 29 of the second embodiment has a hat-shaped cross section, and is attached integrally to the front and rear surface portions 13b of the lower support portion 13 on the side facing the shutter core X, and the upper edge portion 29c is located above half the height of the opening, and the lower edge portion 29d is located at the same position as the lower surface portion 13c of the lower support portion 13, all of which are similar to those of the first embodiment. However, the upper edge portion 29c is set lower than that of the first embodiment and is approximately 2/3 the height of the frontage, so that the upper edge Section 29c is set lower than in the first embodiment and lower than the lower edge of the pillar main body section 14. As a result, the reinforcing vertical member 29 is lowered, thereby making the reinforcing pillar 11 lighter. However, when the shutter curtain 3 is bent due to strong winds, the reinforcing vertical member 29 can support and receive the portion of the shutter curtain 3 that is substantially bent to a large extent without coming into contact with the reinforcing vertical member 11, thereby highly preventing the bent shutter curtain 3 from slipping out of the guide rail 2.
By lowering the height of the reinforcing vertical members 29 in this manner, when the reinforcing vertical members 29 receive and support the bent shutter curtain 3, if the height of the reinforcing vertical members 29 is set to 2/3 of the frontage height, the load acts on the floor surface F side and 1/3 on the ridge portion M side as a stress, so that the load is more heavily borne on the floor surface F side, where the supporting strength can be set to be greater, thereby contributing to increased strength.

Furthermore, in this case, the upper edge 29c of the reinforcing vertical member 29 is an inclined surface that slopes downward toward the shutter curtain 3, while the lower edge 29d is an inclined surface that slopes upward toward the shutter curtain 3.This is intended to prevent the seat plate 3a from getting caught on the upper edge 29c or lower edge 29d of the reinforcing vertical member 29, which would cause the opening and closing posture to be disturbed when the shutter curtain 3 is opened or closed with the reinforcing post 11 set in the reinforcing position.
Furthermore, cushioning material 30 is provided on the spanning piece portion 29e and both upper and lower edge portions 29c, 29d, which are the surfaces of the reinforcing vertical member 29 facing the shutter curtain. As a result, when the bent shutter curtain (seat plate 3a, slats 3b) 3 comes into contact with the reinforcing vertical member 29, shock absorption is achieved, which not only contributes to preventing noise generation, but also prevents damage to the reinforcing vertical member 29 and the shutter curtain 3.

Furthermore, in the second embodiment, the position of the support member 23 for maintaining the reinforcing column 11 in the storage position and the reinforcing position is configured differently from that of the first embodiment, and this configuration will be described below.
In the first embodiment, the support member 23 is provided on one of the side surfaces 13a in the left-right direction of the lower support 13, but in the second embodiment, it is provided on the outer side surface 13b in the front-rear direction. By configuring it in this way, the support member 23 can be operated from the outside in the front-rear direction of the opening E, and the body side member is not close to the opening E and gets in the way, particularly in the storage position, and the operation is superior to that of the first embodiment. Moreover, the upper rail 9 is provided with stopper members 9k, 9l corresponding to the storage position and the reinforcement position of the reinforcing support 11, but the stopper members 9k, 9l are not L-shaped single plates provided on the upper rail upper piece 9a like the stopper pieces 9i, 9j in the first embodiment, but are U-shaped and protrude outward from the side piece 9b of the upper rail 9.
In this case, the pair of left and right stopper materials 9l provided at the reinforcement position are welded to the vertical piece portion 21a and the upper piece portion 21b of the reinforcing member 21 provided at that portion, thereby reinforcing the reinforcing member 21 itself, and thus the stopper materials 9l are used as reinforcing materials to further reinforce the portion of the upper rail 9 corresponding to the reinforcement position.

The present invention can be used as a reinforcing device for shutter curtains in building shutter devices that are installed to open and close openings such as entrances and exits of buildings.

REFERENCE SIGNS LIST 1 shutter device 2 guide rail 3 shutter curtain 8 reinforcement device 9 upper rail 9e opening edge 9g closing plate 11 reinforcement support 12 upper support section 13 lower support section 14 support body section 14a front and rear surface section 14b bracket 14c left and right surface section 14d extension section 14e sphere 15 upper roller 16 guide surface section 18 outer shell section 20 lower roller 21 reinforcement member 22 hanging fitting 23 upper support member 23c rod-shaped body 24 lower support member 24b rod-shaped body 25 drop-in section 26 hoist 27 hanging fitting 29 reinforcement vertical member F floor L magus width X shutter core Y guide section Z mounting hole

Claims (11)

In a shutter device for a building, a shutter curtain that opens and closes a building opening by being guided by guide rails provided on the left and right sides of the opening is vertically erected between the top and bottom of the opening at a reinforcing position in the middle of the left and right direction of the opening, and both upper and lower end portions are reinforced by reinforcing posts supported on both the top and bottom sides of the opening.
The reinforcing column is provided integrally with a reinforcing vertical member on a surface facing the shutter curtain in a state close to the shutter curtain in a closed state so that the shutter curtain can come into contact with and receive the shutter curtain when it is bent by a strong wind.
A reinforcing device for a shutter curtain in a shutter device for a building, characterized in that the reinforcing vertical member is closely opposed to the shutter curtain in a state that exceeds the front-to-rear width of the liner part, which serves as the outlet for the shutter curtain to open and close, based on the shutter core of the shutter curtain that moves open and closed. In a shutter device for a building, a shutter curtain that opens and closes a building opening by being guided by guide rails provided on the left and right sides of the opening is vertically erected between the top and bottom of the opening at a reinforcing position in the middle of the left and right direction of the opening, and both upper and lower end portions are reinforced by reinforcing posts supported on both the top and bottom sides of the opening.
The reinforcing column is provided integrally with a reinforcing vertical member on a surface facing the shutter curtain in a state close to the shutter curtain in a closed state so that the shutter curtain can come into contact with and receive the shutter curtain when it is bent by a strong wind.
A reinforcing device for a shutter curtain in a shutter device for a building, characterized in that the reinforcing vertical member is a long member whose lower edge is located at the lower edge portion of the reinforcing column and whose upper edge is positioned at a low position that does not reach the upper edge portion of the reinforcing column. A reinforcing device for a shutter curtain in a shutter device for a building as described in claim 2 , characterized in that the upper edge of the reinforcing vertical member is set to be positioned above a height higher than half the width height of the opening. In a shutter device for a building, a shutter curtain that opens and closes a building opening by being guided by guide rails provided on the left and right sides of the opening is vertically erected between the top and bottom of the opening at a reinforcing position in the middle of the left and right direction of the opening, and both upper and lower end portions are reinforced by reinforcing posts supported on both the top and bottom sides of the opening.
The reinforcing column is provided integrally with a reinforcing vertical member on a surface facing the shutter curtain in a state close to the shutter curtain in a closed state so that the shutter curtain can come into contact with and receive the shutter curtain when it is bent by a strong wind.
A reinforcing device for a shutter curtain in a shutter device for a building, characterized in that the upper edge portion of the reinforcing vertical member forms an inclined surface that is inclined downwardly toward the shutter curtain. In a shutter device for a building, a shutter curtain that opens and closes a building opening by being guided by guide rails provided on the left and right sides of the opening is vertically erected between the top and bottom of the opening at a reinforcing position in the middle of the left and right direction of the opening, and both upper and lower end portions are reinforced by reinforcing posts supported on both the top and bottom sides of the opening.
The reinforcing column is provided integrally with a reinforcing vertical member on a surface facing the shutter curtain in a state close to the shutter curtain in a closed state so that the shutter curtain can come into contact with and receive the shutter curtain when it is bent by a strong wind.
A reinforcing device for a shutter curtain in a shutter device for a building, characterized in that the lower edge portion of the reinforcing vertical member forms an inclined surface that is inclined toward the shutter curtain as it approaches the upper side. A reinforcement device for a shutter curtain in a shutter device for a building described in any one of claims 1 to 5, characterized in that the reinforcing post is provided with an upper roller that runs on an upper rail provided at the upper end of the opening and a lower roller that runs on the floor surface at the lower end of the opening, and moves between a stored position close to the guide rail and the reinforcement position. In a shutter device for a building, a shutter curtain that opens and closes a building opening by being guided by guide rails provided on the left and right sides of the opening is vertically erected between the top and bottom of the opening at a reinforcing position in the middle of the left and right direction of the opening, and both upper and lower end portions are reinforced by reinforcing posts supported on both the top and bottom sides of the opening.
The reinforcing column is provided integrally with a reinforcing vertical member on a surface facing the shutter curtain in a state close to the shutter curtain in a closed state so that the shutter curtain can come into contact with and receive the shutter curtain when it is bent by a strong wind.
A reinforcing device for a shutter curtain in a shutter device for a building, characterized in that the reinforcing support is composed of an upper support portion and a lower support portion supported on the upper support portion so that it can move freely up and down, and a reinforcing vertical member is provided on the lower support portion. A reinforcing device for a shutter curtain in a shutter device for a building as described in claim 7, characterized in that the lower support portion moves up and down while being loosely fitted onto the upper support portion, and the reinforcing vertical member is set so that its upper edge is positioned lower than the lower edge of the upper support portion. A reinforcing device for a shutter curtain in a shutter device for a building as described in any one of claims 1 to 8 , characterized in that the reinforcing support is set so that the bent shutter curtain does not abut against the reinforcing vertical member and is received by abutting against the reinforcing vertical member. 10. The reinforcing device for a shutter curtain in a shutter device for a building according to claim 1, wherein a shock absorbing material is provided on a surface of the reinforcing vertical member facing the shutter curtain. In a shutter device for a building, a shutter curtain that opens and closes a building opening by being guided by guide rails provided on the left and right sides of the opening is vertically erected between the top and bottom of the opening at a reinforcing position in the middle of the left and right direction of the opening, and both upper and lower end portions are reinforced by reinforcing posts supported on both the top and bottom sides of the opening.
The reinforcing column is provided integrally with a reinforcing vertical member on the surface facing the shutter curtain in a state close to and facing the shutter curtain in the closed state so that the shutter curtain can come into contact with and receive the shutter curtain that is bent by a strong wind.
The reinforcing vertical member is a long member having a lower end edge portion located at the lower end edge portion of the reinforcing column and an upper end edge portion extending to a low position not reaching the upper end edge portion of the reinforcing column,
This method of reinforcing a shutter curtain in a shutter device for a building is characterized in that the shutter curtain, bent by a strong wind, is received by abutting against a reinforcing vertical member without coming into contact with a reinforcing support, so that the load at the time of receiving the load is received more heavily at the lower part of the opening than at the upper part .

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