Reinforcement device and method for shutter curtain in building shutter device

Abstract

To provide a shutter curtain reinforcement device capable of reinforcing the strength of a reinforcing column 11 for reinforcing the shutter curtain 3 bent by strong winds with the reinforcing columns 11 which is movable in the left-right direction without increasing the size of the reinforcing columns 11.SOLUTION: A reinforce vertical material 29 of a cross-section hat type is provided to the surface facing a shutter curtain 3 of a reinforcing column 11 facing the shutter curtain 3 at close position.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to a technical field of a reinforcing device and a reinforcing method for a shutter curtain in a building shutter device installed to open and close an opening such as an entrance or exit of a building such as a building. [Background technology]

[0002] 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 issue, 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). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 4697644 [Patent Document 2] Patent No. 5489044 Summary of the Invention [Problem to be solved by the invention]

[0004] However, all of these systems are designed so that the shutter curtain, when bent by strong winds, comes into direct contact with the reinforcing post itself to support it. In order to withstand the strong winds expected to occur in the event of a large typhoon, however, it is necessary to increase the strength of the reinforcing post by making it thicker in diameter (width), etc. However, when the strength of the reinforcing post is increased in this way, the reinforcing post becomes large and heavy, which requires much effort to move it to the reinforcing position midway between the left and right of the opening, and to set it up in an upright position (reinforcing position), resulting in problems such as poor workability, and these are the issues that the present invention aims to solve. [Means for solving the problem]

[0005] The present invention has been created in view of the above-mentioned circumstances and with the objective of solving these problems. Opening In a shutter device for buildings, a shutter curtain that opens and closes an opening 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 edges are reinforced by reinforcing posts supported on both the top and bottom sides of the opening. A reinforcing vertical member is integrally provided on the reinforcing post on the surface facing the shutter curtain in the closed state, in such a manner that the shutter curtain comes into contact with and receives the shutter curtain that is bent by a strong wind. At the same time, the reinforcing vertical member is opposed to the shutter curtain in a close proximity beyond the width of the magus in the front-rear direction of the magus part which is the outlet of the shutter curtain to the opening, based on the shutter core of the shutter curtain which moves to open and close. It is characterized by Construction This is a reinforcing device for a shutter curtain in a shutter device for objects. The invention of claim 2 is as follows: In a shutter device for a building, a shutter curtain that opens and closes a building opening 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 edges are reinforced via reinforcing posts supported on both the top and bottom sides of the opening. A reinforcing vertical member is integrally provided on the reinforcing post on the surface facing the shutter curtain in a state close 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 a strong wind, and The reinforcing vertical member is characterized in that the lower end edge is located at the lower end edge portion of the reinforcing column, and the upper end edge is composed of a long material extending to a low position that does not reach the upper end edge portion of the reinforcing column. Construction This is a reinforcing device for a shutter curtain in a shutter device for objects. The invention of claim 3 is characterized in that the upper end edge of the reinforcing vertical member is set to be located higher than half the height of the frontage of the opening. 2 A reinforcing device for a shutter curtain in the described building shutter device. The invention of claim 4 is as follows: In a shutter device for a building, a shutter curtain that opens and closes a building opening 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 edges are reinforced via reinforcing posts supported on both the top and bottom sides of the opening. A reinforcing vertical member is integrally provided on the reinforcing post on the surface facing the shutter curtain in a state close 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 a strong wind, and This is 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 slopes downward toward the shutter curtain. The invention of claim 5 is as follows: In a shutter device for a building, a shutter curtain that opens and closes a building opening 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 edges are reinforced via reinforcing posts supported on both the top and bottom sides of the opening. A reinforcing vertical member is integrally provided on the reinforcing post on the surface facing the shutter curtain in a state close 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 a strong wind, and This is 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 slopes toward the shutter curtain as it approaches the upper side. The invention of claim 6 is characterized in that the reinforcing column is provided with upper rollers that run on an upper rail provided at the upper end of the opening and lower rollers that run on the floor surface at the lower end of the opening, and moves between a storage position adjacent to the guide rail and the reinforcing position. 5 A reinforcing device for a shutter curtain in a shutter device for a building described in any one of the above. The invention of claim 7 is as follows: In a shutter device for a building, a shutter curtain that opens and closes a building opening 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 edges are reinforced via reinforcing posts supported on both the top and bottom sides of the opening. A reinforcing vertical member is integrally provided on the reinforcing post on the surface facing the shutter curtain in a state close 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 a strong wind, and The reinforcing column is configured to include an upper column portion and a lower column portion supported on the upper column portion so as to be movable up and down, and is characterized in that a reinforcing vertical member is provided on the lower column portion. Construction This is a reinforcing device for a shutter curtain in a shutter device for objects. The invention of claim 8 is characterized in that the lower support portion moves up and down while being loosely fitted around the upper support portion, and the upper end edge of the reinforcing vertical member is set to be located lower than the lower end edge of the upper support portion. 7 A reinforcing device for a shutter curtain in the described shutter device for a building. The invention of claim 9 is characterized in that the reinforcing column is set so that the bent shutter curtain does not come into contact with the reinforcing vertical member while being received by the reinforcing vertical member. ~8 A reinforcing device for a shutter curtain in a shutter device for a building described in any one of the above. The invention of claim 10 is characterized in that a cushioning material is provided on the surface of the reinforcing vertical member facing the shutter curtain. 9 A reinforcing device for a shutter curtain in a shutter device for a building described in any one of the above. The invention of claim 11 relates to a building. OpeningIn a shutter device for a building, a shutter curtain that opens and closes an opening guided by guide rails provided on the left and right sides of the opening is set up vertically 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 edges are reinforced by reinforcing posts supported on both the top and bottom sides of the opening. A reinforcing vertical member is integrally provided on the reinforcing post on the surface 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 whose lower edge is located at the lower edge of the reinforcing column and whose upper edge is at a low position that does not reach the upper edge of the reinforcing column. When the shutter curtain is bent by a strong wind, it abuts against the reinforcing vertical member without abutting against the reinforcing column, and the load at the time of the abutment is received more heavily in the lower part of the opening than in the upper part. The present invention relates to a method for reinforcing a shutter curtain in a shutter device for a building. Effect of the Invention

[0006] By adopting the invention of claim 1, the shutter curtain is reinforced by a vertically oriented reinforcing pillar, but 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 provided on the surface facing the shutter curtain in close proximity to the shutter curtain, thereby providing reinforcement without increasing the size and providing 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 members are set to be positioned higher than 1 / 2 of the frontage height, so that they come into contact with and support the 1 / 2 part of the frontage height where the shutter curtain is most likely to bend when subjected to strong winds, ensuring that the shutter curtain is securely supported and supported. 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 provided on the surface facing the shutter curtain in close proximity to the shutter curtain, thereby providing reinforcement without increasing the size and providing 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 making the invention as claimed in claim 5, The shutter curtain is reinforced by a vertically oriented reinforcing pillar, and the reinforcing pillar has a reinforcing vertical member integrally provided on the surface facing the shutter curtain in close proximity to the shutter curtain, thereby providing reinforcement without increasing the size and providing 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. By making the invention as claimed in claim 6, The reinforcing column provided with the reinforcing vertical member can be smoothly moved between the storage position on the guide rail side and the reinforcing position, improving operability. By making the invention as claimed in claim 7, The shutter curtain is reinforced by a vertically oriented reinforcing pillar, and the reinforcing pillar has a reinforcing vertical member integrally provided on the surface facing the shutter curtain in close proximity to the shutter curtain, thereby providing reinforcement without increasing the size and providing 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 making the invention as claimed in claim 8, Since the lower support portion is fitted loosely onto the upper support portion, the load received when the bent shutter curtain abuts the reinforcing vertical member is applied directly to the lower support portion supported on the floor surface, and the load applied to the upper support portion is reduced, thereby improving the reinforcing performance. By adopting the invention of claim 9, When a shutter curtain is bent by a strong wind, it comes into contact with the reinforcing vertical member without coming into contact with the reinforcing support, and as a result, the shutter curtain bends in a restricted manner so that the amount of bending does not reach the reinforcing support, thereby making it more effective at preventing the shutter curtain from coming off the guide rail due to bending deformation. By adopting the invention of claim 10, By providing a cushioning material on the surface of the reinforcing vertical member facing the shutter curtain, it is possible to absorb the impact when the bent shutter curtain abuts against the reinforcing vertical member, thereby preventing noise generation and damage to the reinforcing vertical member and the shutter curtain. Claim 11 By using this invention, the shutter curtain that has been 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 restricted 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. Moreover, 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 mostly by the lower part supported by the floor surface rather than the upper part of the reinforcing post, thereby providing highly stable reinforcement. [Brief description of the drawings]

[0007] [Figure 1] 2 is a front view of a shutter device for a building with the reinforcing column positioned in the stored position. FIG. [Diagram 2] 1 is a front view of a shutter device for a building with the reinforcing column positioned in the reinforcing position. FIG. [Diagram 3] FIG. 2 is a side view of a shutter device for a building. [Figure 4] A side view of the upper end portion of the building shutter device. [Diagram 5] A side view of the lower end portion of the building shutter device. [Figure 6] FIG. 2 is a side view of an upper end portion at a reinforcement position of the reinforcement device. [Figure 7] FIG. 4 is a front view of the upper end portion of the reinforcement device. [Figure 8] 7A and 7B are cross-sectional views taken along line II and II-II in FIG. [Figure 9] 8(A) and 8(B) are cross-sectional views taken along lines III-III and IV-IV in FIG. [Figure 10] 7(A) and (B) are cross-sectional views taken along line VV and VI-VI in FIG. [Figure 11] 13 is a front view of the upper end portion of the reinforcement device with the reinforcement pillar positioned in the storage position. FIG. [Figure 12] 1 is a front view of an upper end portion of a reinforcement device with a reinforcement strut positioned at a reinforcement position. FIG. [Figure 13] 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. [Figure 14] A plan cross-sectional view showing the state in which the reinforcing column located in the storage position is engaged with the main body. [Figure 15] 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. [Figure 16] 13(A) and (B) are schematic explanatory views showing the assembly procedure for the first half of the reinforcement device. [Figure 17] 13(A) and (B) are schematic explanatory views showing the latter half of the assembly procedure of the reinforcement device. [Figure 18] FIG. [Figure 19] 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. [Figure 20] FIG. 11 is a cross-sectional side view of a shutter device according to a second embodiment. [Figure 21] FIG. [Figure 22] FIG. [Figure 23] FIG. [Figure 24] FIG. [Diagram 25] (A) and (B) are a plan view and a front view of the upper rail. [Figure 26] (A) and (B) are a bottom view and a side view of the upper rail. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0008] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In the drawings, reference numeral 1 denotes a shutter device for a building that is installed at an opening E such as an entrance or exit of a building, and the shutter device 1 is configured using various members and devices such as guide rails 2 provided on the left and right sides of the opening E, a shutter curtain 3 that opens and closes the opening E by being guided up and down by the guide rails 2, 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 device 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.

[0009] 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 on the outdoor side 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 frame 6d provided on the frame 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 bottom 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 of the reinforcing frame 6b and the 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 so as to be 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 symmetrical core.

[0010] 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, hereinafter, the indoor reinforcing device 8 will be described in detail, and a description 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 indoors and outdoors or on only one of them can be selected as appropriate according to need.

[0011] 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, which will be described later (in this case, it is not necessary to set the reinforcing positions at equal intervals in the left and right direction). The present invention can also be implemented by providing a plurality of reinforcing posts 11, such as two, on one set of reinforcing devices 8, reinforcing the shutter curtain 3 at appropriate intervals in the left and right direction. In this case, the upper rail 9, which will be described later, may 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 may be configured to be stored in a state where they are separated on the left and right.

[0012] The reinforcing device 8 is configured with an upper rail 9 provided on the case bottom plate 6e, and the upper rail 9 is C-shaped and includes an upper piece 9a serving as a straddling portion, side pieces 9b bent downward so as to hang down from the front and rear end edges of the upper piece 9a, and a pair of front and rear lower pieces 9c bent in the front-rear direction from the lower end edges of the side pieces 9b so as 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), and this fixing position is preferably the position of a reinforcing member such as the left and right brackets 6a or the reinforcing frame 6b of the shutter case 6, but it may be directly fixed to the case bottom plate 6e as long as the case bottom plate 6e has the necessary strength.

[0013] The upper rail 9 has a pair of lower pieces 9c which serve as running surfaces 9c for the upper rollers 15 described later, and a gap Y formed between the opposing running surfaces 9c in the front-to-rear direction constitutes a guide portion (penetrating portion) Y for guiding the pillar 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, with the vertical piece 10a of the auxiliary member 10 being in contact with the side piece 9b in an overlapping (laminated) state. 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 pillar 11, which moves left and right, from tilting in the left and right direction.

[0014] 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), and is configured to serve 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, the opening edge 9e can be blocked off detachably by screwing a screw 9h from the blocking plate 9g into the mounting bracket 9f.

[0015] On the other hand, the reinforcing column 11 is configured so that an upper column portion 12 and a lower column portion 13 are connected in a continuous manner in the vertical direction. The upper support portion 12 is further constructed using a support body portion 14 having a rectangular tube shape, the lower end edge of which is short to the upper part of the reinforcing support 11, and the front and rear surface portions 14a of the support body portion 14 penetrate the guide portion Y of the upper rail 9 in a loosely fitted state. At the upper end portion of the front and rear surface portions 14a of the penetrated support body portion 14, a bracket 14b is provided that is set longer in the left and right direction than the support body portion 14 (so as to protrude in the left and right direction relative to the support body portion 14) and is positioned above the running surface portion 9c, and the upper rollers 15 that run on the running surface portion 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 surfaces 14a of the pillar main body 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 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 14 is guided in a state where it is close to and faces the tip edge portion of the running surface portion 9c.

[0016] 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 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. For this reason, the guide surface portion 16 has a cutout portion 16a formed in a 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.

[0017] Furthermore, a wide outer casing 18 is provided on the pillar main body 14 and is positioned below the guide surface 16, but the lower edge of the outer casing 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 casing 18. The outer shell 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 shell 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.

[0018] 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, extension portion 14d, which 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.

[0019] 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. The 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 cover the outer periphery of the left-to-right and front-to-back surface portions 13a and front-to-back surface portions 13b of the lower support portion 13 in a loose fit manner, and is configured to prevent rainwater, etc. from entering through the upper end of the lower support portion 13. Incidentally, in the present embodiment, the cover portion 19a is 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 with a protrusion 19c for welding the cover portion 19 to the pillar main body portion 14 so as to protrude upward from the top surface portion 19a.

[0020] A lower roller 20 that runs on the floor surface (floor surface) F is disposed on the lower surface 13c provided at the lower end of the lower support 13, and the lower roller 20 is provided on a bracket 20a attached to the lower surface 13c in a state in which it is impossible to change direction around the vertical axis, and is movable in the left-right direction, and in this embodiment, the lower rollers 20 are provided on the lower surface 13c as a pair with misalignment in the front-rear and left-right directions. 20b is an operating lever for locking the running (rolling) of the lower roller 20, and although the operating lever 20b is provided on only one of the lower rollers 20 in this embodiment, it can also be provided on both if necessary.

[0021] Furthermore, in this embodiment, a reinforcing vertical member 29 (described later) is provided on the surface portion (front-to-rear inner surface portion) of both the front and rear surface 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 pillar portion 12 and the lower pillar 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 pillar portion 12 run and guide the upper rail 9 in the horizontal direction, and the lower rollers 20 provided on the lower pillar 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.

[0022] 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 lower panel 6e via a screw (not shown), and the reinforcing member 21 further has a reinforcing piece 21c welded to the vertical piece 21a and the upper piece 21b, which is provided at an interval 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 suitable shape) engaging portion is provided on the bracket 22a so as to be freely attached and detached.

[0023] 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 penetrates 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 portion 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 portion of the rod-shaped body 23c.

[0024] 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 metal 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 metal fitting 23d can also be magnetized, so that the flange portion 23f does not fall off the upper holding metal fitting 23d inadvertently. When the reinforcing pillar 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-positioning 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 positioning 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 positioning position, the upper edge portion of the reinforcing pillar 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.

[0025] 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 similarly to 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.

[0026] A long hole 24d is formed in one side surface 24c in the left-right direction of the support fitting 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 fitting 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 vertical movement and fixing the rod-shaped body 24b in a fixed state in which vertical movement, including descent under its own weight, is permitted by loosening the operating screw 24g, and the rod-shaped body 24b that has been descent under its own weight 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 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 below 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 rod-shaped body 24b from moving upward 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.

[0027] Meanwhile, 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 set to close (cover) the opening 25f by fitting into the opening 25f and 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.

[0028] Furthermore, cover portion 25b is provided on its upper surface with an operating portion 25k having a recessed groove formed therein into which a screwdriver or the periphery of a coin (e.g., a 10-yen coin) can be inserted to rotate the operating portion 25k, and a locking piece 25l is provided at the lower end of operating portion 25k. By rotating operating portion 25k, locking piece 25l fits into locking hole 25m formed in one of main body side surface portions 25d, and thus 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 locking hole 25m to be in an unlocked state and cover portion 25b can be removed. In this embodiment, when the lid portion 25b is removed while being unlocked by operating the operating portion 25k, the lid portion 25b can be temporarily held in place by inserting the tip portions of the lid portion 25b and the auxiliary plate 25i between one of the main body side portions 25d and the protruding surface portion 25e.

[0029] The reinforcement device 8 of 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 components that need to be transported to site and prepared are the reinforcing posts 11, the upper rail 9, and the drop-in portion 25. Of these components transported to site, the first step is 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 the step of opening and closing the opening edge 9e via the blocking plate 9g.

[0030] Furthermore, this method requires a recess formation process for forming recess 25 on floor surface F. If the position at which recess 25 is to be formed 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 by 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.

[0031] 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 into 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 fitting 22 is detachably 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 fitting 22. A locking hook 26b attached to an operating chain 26a suspended from the hoist 26 is locked to a hoisting fitting 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 to lift 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.

[0032] 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 facing the shutter core X among the front and rear surface parts 13b of the lower column part 13 constituting the reinforcing column 11, and the reinforcing vertical member 29 has a hat-shaped cross section including a main body part 29a shaped like a square and narrower in the left-right direction than the lower column part 13, and leg pieces 29b extending outward in the left-right direction from both left and right end edges of the main body part 29a, and the leg pieces 29b are welded to one of the front and rear surface parts 13b, thereby being integrated with the lower column part 13 and reinforced. The reinforcing vertical member 29 is configured so that its main body portion 29a protrudes toward the shutter core X further 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.

[0033] The shutter device 1 is provided with a foldable 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 arranged 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 fore-and-aft width L of the foldable portion M with the shutter core X as the reference point. 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 base plate 3a side is in a free end state with nothing supporting the left-right central part, so that the section beyond the up-down central part up to a height of approximately 2 / 3 to 3 / 4 of the frontage height bends significantly, and the upper section above this is supported across the entire frontage width by the lintel section M, so the amount of bending is suppressed, and the shutter curtain 3 attempting to bend in this way is received by 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 shim 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 shim may be either wider or narrower than the front-to-rear width of the guide rail 2.

[0034] 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 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 end edges of the shutter curtain 3 are prevented from bending and deforming to the extent that they would 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 although the support strength of these case lower panel 6e and upper frame 7 is inevitably inferior to that of the drop-in part 25 arranged on the floor part F, sufficient reinforcing strength can be obtained even when supported by the upper rail 9 attached to such a part.

[0035] Moreover, 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 bent by strong winds comes into contact and is received 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 support section 13 is configured so that its lower end edge is supported on the floor surface F side, it can receive the load 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, so that the strength of the reinforcing device 8 can be increased.

[0036] In the reinforcing column 11 according to the present invention, both upper and lower end edges are positioned and held by the upper and lower support members 23, 24 in the reinforcing position, while the reinforcing column 11 can be positioned and held in the stored position by a similar configuration, but as a simple means for holding the reinforcing column 11 in the stored position, the present embodiment can hold the reinforcing column 11 in the stored position by detachably connecting a bracket 28a fixed to the lower holding portion 23e provided on the lower column portion 13 with an engaging portion 28b provided on a body side member such as the guide rail 2 via a connecting member such as a chain 28 or wire. Of course, a means for holding the reinforcing column 11 in the stored position may be magnetic, fastened with a string, or the like.

[0037] In the present embodiment configured as described above, 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 post 11 which is provided to abut against and receive the bent shutter curtain 3 has a reinforcing vertical member 29 integrally provided in close proximity to the shutter curtain 3. As a result, while the shutter curtain 3 is reinforced by the vertically-positioned reinforcing post 11, because the reinforcing post 11 has the reinforcing vertical member 29 integrally provided, reliable reinforcement can be achieved without increasing the size of the device, and operability can also be improved.

[0038] Moreover, in this case, when the bent shutter curtain 3 is in contact with the reinforcing vertical member 29 and received by it, the reinforcing pillar 11 is set so that the bent shutter curtain 3 does not abut against the reinforcing pillar 11. As a result, the shutter curtain 3 bends in a restricted manner so that the amount of bending does not reach the reinforcing pillar 11, effectively preventing the shutter curtain 3 from becoming stuck in 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-back width L of the liner part 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 post 11 set in the reinforcing position, even if the shutter curtain 3 which moves to open and close sways in the front-to-back 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.

[0039] Furthermore, the reinforcing vertical member 29 has its lower edge 29d located at the lower surface (lower edge) 13c of the lower pillar portion 13 that constitutes the reinforcing column 11, and its upper edge 29c is lower than the upper edge 12a of the upper pillar 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 lower surface 13c of the lower pillar portion 13, and acts as a small load on the upper edge 12a of the upper pillar portion 12, which is the side of the tatami portion M. However, the lower surface 13c of the lower pillar portion 13 is able to receive 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 the greatest amount of bending when bent by strong winds, comes into contact with and receives support therefrom. This ensures that the shutter curtain 3 is supported by the reinforcing vertical member 29 without directly contacting the lower support column 13 when bent, thereby enabling the shutter curtain 3 to be supported with high reliability.

[0040] Moreover, the reinforcing pillar 11 is provided with upper rollers 15 that run on an upper rail 9 provided at the upper end of the opening E, and lower rollers 20 that run 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 the 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 mounted 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.

[0041] In this case, the lower support portion 13 is fitted onto the upper support portion 12 in a loose fit state, so that the load received when the bent shutter curtain 3 abuts against the reinforcing vertical member is first received directly by the lower support portion supported on the floor surface side, and then is acted upon the upper support portion 12 with which it fits loosely, thereby reducing the load indirectly, thereby improving the reinforcing performance.

[0042] 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 is bent by a strong wind and comes into contact with the reinforcing vertical member 29 without coming into contact with the reinforcing support column 11, the load is received largely by the lower portion supported by the floor surface rather than the upper portion of the reinforcing support column, thereby providing highly stable reinforcement.

[0043] 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 onwards, 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.

[0044] 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 portion 29c is set lower than that of the first embodiment and lower than the lower edge portion of the pillar main body portion 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 by strong winds, the reinforcing vertical member 29 can support and receive the portion of the shutter curtain 3 where the bending amount is large without contacting the reinforcing vertical member 29, thereby highly preventing the bent shutter curtain 3 from slipping out of the guide rail 2. By lowering the height of the reinforcing vertical member 29 in this manner, when the reinforcing vertical member 29 receives and supports the bent shutter curtain 3, if the height of the reinforcing vertical member 29 is set to 2 / 3 of the frontage height, the load acts on the floor surface F side and 1 / 3 on the lintel section M side as a stress. This means that the load is borne more heavily on the floor surface F side, where the support strength can be set to be greater, thereby contributing to increased strength.

[0045] 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 position 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.

[0046] 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 portion 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 reinforcing 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 portion 9a like the stopper pieces 9i, 9j in the first embodiment, but are U-shaped ones protruding outward from the side piece portion 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 in that portion, thereby reinforcing the reinforcing member 21 itself. This allows the stopper materials 9l to double as reinforcing materials, thereby further reinforcing the portion of the upper rail 9 corresponding to the reinforcement position. [Industrial Applicability]

[0047] The present invention can be used as a reinforcing device for a shutter curtain in a building shutter device installed to open and close an opening such as an entrance or exit of a building or other structure. [Explanation of symbols]

[0048] 1 Shutter device 2 Guide rails 3. Shutter Curtain 8 Reinforcement Device 9 Top Rail 9e Opening edge 9g Closing plate 11 Reinforcement pillar 12 Upper support column 13 Lower support section 14 Pillar body 14a Front and rear both sides 14b Bracket 14c Left and right side 14d Extension 14e sphere 15 Upper roller 16 Guide surface 18 Outer Wall 20 Lower Roller 21 Reinforcement members 22 Hanging bracket 23 Upper support member 23c Rod 24 Lower support member 24b Rod 25 Drop-in section 26 Hoist 27 Hanging bracket 29 Reinforcing vertical members F Floor L Magsa width X Shutter Core Y Information Department Z Mounting Hole

Claims

1. 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.

2. A shutter device for a building in which a shutter curtain that opens and closes a building opening is guided by guide rails provided on the left and right sides of the opening is set up vertically between the top and bottom of the opening at a reinforcing position midway between the left and right directions of the opening, and both top and bottom end portions are reinforced via 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.

3. 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.

4. A shutter device for a building in which a shutter curtain that opens and closes a building opening is guided by guide rails provided on the left and right sides of the opening is set up vertically between the top and bottom of the opening at a reinforcing position midway between the left and right directions of the opening, and both top and bottom end portions are reinforced via 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.

5. A shutter device for a building in which a shutter curtain that opens and closes a building opening is guided by guide rails provided on the left and right sides of the opening is set up vertically between the top and bottom of the opening at a reinforcing position midway between the left and right directions of the opening, and both top and bottom end portions are reinforced via 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.

6. 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.

7. A shutter device for a building in which a shutter curtain that opens and closes a building opening is guided by guide rails provided on the left and right sides of the opening is set up vertically between the top and bottom of the opening at a reinforcing position midway between the left and right directions of the opening, and both top and bottom end portions are reinforced via 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.

8. 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.

9. 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. 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.

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 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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