Guide rail structure in building shutter devices

Abstract

To easily attach a thick-walled guide rail 3 formed by extruding steel to an inner side 2a in the horizontal direction of a wall section 2 without loss of strength.SOLUTION: A guide rail 3 is formed integrally by extruding a mounting piece 3b from the front and rear end edges of a groove bottom piece 3d so as to face outward in the horizontal direction, and the mounting piece 3g is mounted and fixed to a connecting fitting 8 fixed to an inner surface 2a.SELECTED DRAWING: Figure 4

Description

Technical Field

[0001] The present invention relates to the technical field of the guide rail part structure in a building shutter device provided at an opening such as an entrance of a building such as a building or a house.

Background Art

[0002] Generally, there is a case where a building shutter device is installed at an opening such as an entrance of a building such as a building or a house, and the shutter curtain is moved up and down along guide rails provided on the left and right sides of the opening to open and close. When installing such a shutter device, for those with a wide left and right width of the opening, in order to improve the wind resistance performance, it is required to increase the strength of the guide rails as well. Therefore, it has been proposed to make the guide rails into a wall thickness integral type formed by extrusion molding of steel materials (see, for example, Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] By making the guide rail into the wall thickness integral type, while simplifying the structure of the guide rail itself, it is possible to exhibit high wind resistance performance. However, the conventional guide rail is attached in a state of protruding from the indoor and outdoor sides of the surface of the building side member such as the wall portion, and thus has an attachment structure that takes into consideration making the frontage width of the opening as wide as possible. However, some shutter devices, such as those installed in the openings of warehouses arranged side-by-side, have guide rails attached to the inner surface (visible surface) of the structural member on the opening side. When such an attachment is made, it is preferable to attach the guide rails close to the inner surface on the opening side to ensure a wide opening. However, when the shutter device is large and heavy, the brackets that support the left and right edges of the winding body (winding drum, winding wheel) on which the shutter curtain is wound become larger, and as a result, the brackets must be positioned at a distance from the inner surface on the opening side in the left and right direction. In such cases, the guide rails also need to be attached with the guide grooves spaced apart from the inner surface on the opening side of the structural member. However, there is no known structure for the guide rail section that can accommodate such an attachment state, and this is the problem that the present invention aims to solve. [Means for solving the problem]

[0005] The present invention was created in view of the above circumstances and with the aim of solving these problems, and the invention of claim 1 is a building shutter device comprising guide rails provided on the left and right structural members of an opening such as an entrance to a building, a shutter curtain that is loosely fitted into a guide groove formed in the guide rail to open and close the opening, and a winding body provided above the opening on which the shutter curtain is wound, wherein the guide rail teeth , on the inner surface of the opening side of the structural member It was installed, The guide rail is formed in a concave groove shape with front and rear groove side pieces and a groove bottom piece at the back of the groove, and at least one of the front and rear groove side pieces is designed to withstand strong winds when the shutter curtain is hit In the front-to-back direction A locking part provided on the shutter curtain engages with the guide rail in case of flexing, preventing the shutter curtain from coming off. formed, The groove bottom portion of the guide rail has an attachment piece that extends outward in the left-right direction beyond the groove bottom portion and is attached to the visible surface of the structural member. In this configuration, a pair of mounting pieces are provided with a gap between them at the front and rear, and these pair of mounting pieces with a gap between them are each attached to the visible surface of the structural member.This is a guide rail structure for a building shutter device, characterized by the following features. The invention of claim 2 is a guide rail structure for a building shutter device according to claim 1, characterized in that the mounting piece is a front and rear piece integrally formed with the guide rail so as to extend outward in the left-right direction from the front and rear groove side pieces beyond the groove bottom piece. The invention of claim 3 is a mounting bracket in which the mounting piece is fixed in contact with the visible surface of the groove bottom piece. Crossbody The guide rail structure for a building shutter device according to claim 1 is characterized by having a pair of front and rear leg pieces extending outward in the left-right direction from both front and rear edges. The invention of claim 4 is a guide rail structure for a building shutter device according to claim 1, characterized in that the mounting piece is a front and rear tip portion that extends outward in the left-right direction beyond the groove bottom portion of a pair of front and rear mounting plate materials, the base portion of which is fixed to the visible surface of the front and rear groove side pieces. The invention of claim 5 is a guide rail structure for a building shutter device according to any one of claims 2 to 4, characterized in that the front and rear mounting pieces are each separately attached to a pair of front and rear connecting fittings provided on the visible surface of the structural member. The invention of claim 6 is a guide rail structure for a building shutter device according to claim 5, characterized in that the front and rear connecting fittings each have a frame-side piece attached to a frame-side member and a rail-side piece attached to the attachment piece, and a plurality of these fittings are arranged with gaps in the vertical direction, and an intervening material is provided in a state that is continuous in the vertical direction between the frame-side member and the frame-side piece, and between the attachment piece and the rail-side piece. The invention of claim 7 is a guide rail structure for a building shutter device according to claim 5, characterized in that the front and rear connecting fittings are fixed to the building structure side member via fasteners arranged in a staggered pattern that alternates between the front and rear in the vertical direction. The invention of claim 8 is a guide rail structure for a building shutter device according to claim 5, characterized in that the attachment of the mounting piece to the connecting fitting is a mounting that allows for left-right position adjustment via a fastening device. The invention of claim 9 is a guide rail structure for a building shutter device according to claim 8, characterized in that the mounting piece and the connecting fitting are attached via a connecting member that is arranged to have a gap in the vertical direction. The invention of claim 10 is a guide rail structure for a building shutter device according to claim 9, characterized in that the front and rear connecting members that connect the front mounting pieces and connecting fittings to each other and to each other are L-shaped angle materials and are arranged in a staggered pattern, alternating between front and rear in the vertical direction. The invention of claim 11 is a guide rail structure for a building shutter device according to claim 1, characterized in that the front and rear visible surfaces of the guide rail, from the tip of the guide groove to the building body side member, are covered with a decorative plate that is continuous in the vertical direction. [Effects of the Invention]

[0006] The invention of claim 1 provides a guide rail having a locking receiving portion that prevents the shutter curtain from coming off the guide rail when the shutter curtain is deflected by strong winds by engaging with a locking portion provided on the shutter curtain, while the guide rail has an attachment portion that extends outward in the left-right direction beyond the groove bottom piece and is attached to the visible surface of the building structure side member. 、 Provided on the groove bottom side portion There is a gap in front and behind. As they come in pairs, the guide rails can be attached to the visible surface of the structural member with a simple structure, which also improves the efficiency of the installation work. By adopting the invention of claim 2, the mounting piece is configured as two pieces, front and rear, integrally formed with the guide rail, extending outward in the left-right direction from the front and rear groove-side pieces beyond the groove bottom piece. As a result, the mounting piece can be integrated with the guide rail, contributing to a simplification of the structure. As a result of the invention of claim 3, the mounting piece is configured as a pair of front and rear leg pieces extending outward in the left and right direction from both front and rear edges of the straddling piece of the mounting bracket, which is fixed in contact with the visible surface of the groove bottom piece. Consequently, even if the mounting piece is separate from the guide rail, the attachment of the guide rail to the visible surface of the building structure member can be done simply by using the aforementioned mounting bracket, and the efficiency of the installation work can be improved. As a result of the invention of claim 4, the mounting piece is configured as front and rear leading halves that extend outward in the left-right direction beyond the groove bottom pieces of a pair of front and rear mounting plates, the base halves of which are fixed to the visible surfaces of the front and rear groove-side pieces. Consequently, even if the mounting piece is separate from the guide rail, the attachment of the guide rail to the visible surface of the building structure member can be done using only a pair of front and rear mounting plates, resulting in a simple structure and improved efficiency of the installation work. By adopting the invention of claim 5, the front and rear mounting pieces are each separately attached to a pair of front and rear connecting fittings provided on the structural member, thereby simplifying the mounting structure. By adopting the invention of claim 6, the connecting fittings, to which the front and rear mounting pieces are each attached separately, are arranged in multiple units with gaps in the vertical direction, thereby reducing the weight of the connecting fittings. At the same time, as intermediary materials are provided in a continuous vertical direction between the building structure side member and the building structure side piece, and between the mounting piece and the rail side piece, the gaps between the connecting fittings are sealed by the vertically continuous intermediary materials, thereby blocking communication between the indoors and outdoors at the attachment point, and thus providing fire prevention and smoke prevention functions. As a result of the invention of claim 7, the front and rear connecting fittings are fixed to the structural member via fasteners in a staggered arrangement that alternates between the front and rear in the vertical direction. This reduces the overlap of the effective area of ​​the fixing strength provided by each fastener to the structural member, resulting in efficient fixing while maintaining high fixing strength. By adopting the invention of claim 8, the attachment of the mounting piece to the connecting fitting can be adjusted in the left-right direction, and as a result, even if the guide rail mounting surface of the structural member is not a vertical plane, the guide rail can be mounted vertically. By adopting the invention of claim 9, when the mounting piece and the connecting fitting are mounted with a gap on both sides, they can be connected via a connecting member placed in between, eliminating the need to prepare multiple guide rails with different mounting piece lengths, thus enabling the sharing of parts. By adopting the invention of claim 10, the connecting member is made of L-shaped angle material and is arranged in a staggered pattern alternating front and back in the vertical direction, thereby simplifying the installation of the connecting member while maintaining its strength. By adopting the invention of claim 11, the visible surface portion of the guide rail up to the point where it is attached to the structural member is covered with a decorative panel, and the mounting structure in which the guide rail is attached to the structural member via a connecting fitting is concealed, so that visibility is not impaired. [Brief explanation of the drawing]

[0007] [Figure 1] This is a front view of a shutter device for a building. [Figure 2] This is a front view of the main part of the guide rail section. [Figure 3] This is a side view of the main part of the guide rail section. [Figure 4] This is a plan cross-sectional view of the guide rail section. [Figure 5] (A) and (B) are the plan view and front view of the guide rail. [Figure 6] (A) and (B) are diagrams illustrating the operation of a shutter curtain when it is deflected by strong winds. [Figure 7] (A) and (B) are plan and cross-sectional views and front views showing a second example of guide rail installation. [Figure 8] This is a plan cross-sectional view showing a third example of guide rail installation. [Figure 9] It is a plan sectional view showing a guide rail part of a fourth attachment example. [Figure 10] It is a principal part side view showing a guide rail part of a fourth attachment example. [Figure 11] (A)(B)(C) are plan views of guide rails of the second, third, and fourth embodiments. [Figure 12] It is a principal part side view of a guide rail part of a fifth embodiment. [Figure 13] (A)(B)(C) are a sectional side view of a slat, a plan view of a slat end, and a sectional plan view of a slat end. [Figure 14] It is a plan sectional view of a guide rail part of the same embodiment. [Figure 15] (A)(B) are a plan view and a front view of a guide rail of the same embodiment. [Figure 16] (A)(B) are explanatory diagrams of the action showing a state in which a shutter curtain of the same embodiment is deflected by strong wind. [Figure 17] It is a plan sectional view with a decorative plate of another example of a guide rail part of the same embodiment attached. [Figure 18] It is a principal part side view of a guide rail part of a sixth embodiment. [Figure 19] It is a plan sectional view of a guide rail part of the same embodiment. [Figure 20] (A)(B) are a plan view and a front view of a guide rail of the same embodiment. [Figure 21] (A)(B) are explanatory diagrams of the action showing a state in which a shutter curtain of the same embodiment is deflected by strong wind.

Modes for Carrying Out the Invention

[0008] Embodiments of the present invention will now be described based on the drawings. In the drawings, 1 is a shutter device for a building that is installed in an opening E such as a doorway of a building. The shutter device 1 is constructed using various components and devices, including guide rails 3 attached to the left and right inner surfaces 2a of the left and right wall sections (not limited to walls, but including various structural members that constitute the opening E of a building, such as pillars and gates) 2 which are provided as structural members of the opening E; a shutter curtain 4 that moves up and down on the guide rails 3 to open and close the opening E; a winding body 5 disposed above the opening E on which the shutter curtain 4 is wound; left and right brackets 6 attached to the wall section 2 to pivotally support the left and right edges of the winding body 5; and an electric opening and closing mechanism 7 that rotates the winding body 5. All of these are the same as in the conventional design.

[0009] The guide rail 3 is a thick (for example, about 9 mm thick) material integrally formed by extrusion molding of steel material, and the guide rail 3 has a guide groove 3a that loosely fits the left and right edges of the shutter curtain 4 into it. The guide rail 3a is formed by having front and rear (indoor and outdoor) groove-side pieces 3b, 3c and a groove bottom piece 3d, but in this embodiment the guide groove 3a has a structure in which the groove-side half 3e of the outdoor groove-side piece 3c bulges out in a stepped manner toward the outdoor side, and the groove width on the groove side is wider, so that the groove-side half of the guide groove 3a is recessed and expanded toward the outdoor side. Furthermore, it goes without saying that guide rail 3 may be reversed, with the indoor and outdoor orientations reversed, and such changes can be made as needed. When the outdoor gutter-side piece 3c is subjected to strong winds and the groove-back half 3e is formed, a right-angle corner portion 3f is formed in the middle of the groove depth direction of the outdoor gutter-side piece 3c. This corner portion 3f constitutes a locking receiving portion that prevents the shutter curtain 4 from coming off the guide rail 3 by locking the wind-resistant members (corresponding to the "locking portion" of the present invention) 10 provided on both the left and right edges of the shutter curtain 4 when the shutter curtain 4 is subjected to strong winds and bends in the indoor / outdoor direction (front-to-back direction) (see Figure 6). Incidentally, the locking portion that engages with the corner portion 3f, which serves as the locking receiving portion, to prevent the shutter curtain 4 from coming off the guide rail 3 does not have to be a separately provided wind-resistant member 10, but rather, as in the embodiment described later, a locking portion may be formed by cutting out the left and right edges of the slats 4a that make up the shutter curtain 4, and the locking portion may be configured to engage with the corner portion 3f.

[0010] Furthermore, the guide rail 3 has an attachment piece 3g integrally formed by the extrusion molding process for attaching the guide rail 3 to the wall portion 2, and the attachment piece 3g extends linearly outward in the left and right directions from the inner groove side piece 3b and the inner groove side piece 3c of the outdoor groove side piece 3c, respectively. A gap was left It is composed of two pieces. The guide rail 3 is attached to a wall 2, for example, made of concrete, via the two mounting pieces 3g at the front and rear. A connecting fitting 8, which is arranged to correspond to the front and rear mounting pieces 3g, is connected and fixed to the inner surface of the wall 2 in the left-right direction (hereinafter referred to as the "inner surface of the wall," which corresponds to the "visible surface of the structural member" in the present invention) 2a. The connecting fitting 8 has an L-shape in plan view and comprises a structural side piece 8a that is attached and fixed (tightened) to the inner surface of the wall 2a via bolts (anchor bolts, fasteners) 9, and a rail side piece 8b that is attached and fixed (tightened) to the mounting piece 3g via bolts (fasteners) 9a. Incidentally, the bolt holes 3h formed in the mounting piece 3g are elongated in the left-right direction, and this is the case when the inner surface 2a of the wall is not constructed as a vertical plane. tt However, care has been taken to ensure that the guide rail 3 can be installed vertically.

[0011] In this embodiment, the connecting fittings 8 are short in the vertical direction, and multiple connecting fittings 8 are provided adjacent to each other vertically with gaps between them. In this case, the front and rear connecting fittings 8, which are provided corresponding to the front and rear mounting pieces 3g, are arranged in a staggered (zigzag) pattern, alternating between front and rear in the vertical direction. Furthermore, in this design, a thin plate-shaped intervening material 11 (for example, with a thickness of about 1.6 mm) is provided in a continuous vertical direction, with a structural-side intervening piece 11a and a rail-side intervening piece 11b forming an L-shape in plan view, which are interposed between the inner surface 2a of the wall and the structural-side piece 8a, and between the mounting piece 3g and the rail-side piece 8b, respectively. By configuring it in this way, the connecting fitting 8 is made shorter to reduce the weight (amount used) of the member and allows for communication between the indoors and outdoors by leaving a gap in the vertical direction, while the long intervening material 10 blocks communication between the indoors and outdoors, thereby providing fire prevention and smoke prevention functions in that area. In this case, the connecting fitting 8 is arranged in a staggered pattern with alternating front and back sections in the vertical direction. As a result, the bolt 9a is inserted from the side where the alternating front and back rail-side pieces 8b are located, alternating in the front and back direction, and then tightened with a nut 9b on the side where there are no rail-side pieces 8b (see Figures 3 and 4). In this embodiment, the covering material 12 is provided on the side surfaces of the guide grooves 3a of the indoor and outdoor groove-side pieces 3b and 3c.

[0012] In this embodiment, configured as described above, the guide rail 3 is integrally formed in a thicker shape by extruding steel material to increase its strength, and is attached to the inner surface 2a of the wall. In this case, the inner half 3e of the outer side groove portion 3c that constitutes the guide groove 3a is configured in a stepped shape so that it bulges outwards to the outside and widens the groove, forming a corner portion 3f in the middle of the groove in the direction of the groove depth. This corner portion 3f is designed to prevent the shutter curtain 4 from coming off the guide rail 3 by engaging with the wind-resistant member 10 provided on the shutter curtain 4 when the shutter curtain 4 is deflected by strong winds, and the reinforced profile prevents the shutter curtain 4 from coming off. Furthermore, the mounting portion 3g for attachment to the inner surface 2a of the wall is integrally formed by the aforementioned extruding process, so that the mounting portion 3g is also integrated with the guide rail 3, simplifying the structure and also simplifying the attachment structure to the building structure side member.

[0013] Furthermore, since the mounting piece 3g is composed of two pieces, one front and one rear, that extend outward in the left-right direction from both front-rear edges of the groove bottom piece 3d, the guide rail 3 has a front-to-back bridging mounting structure using the two front and rear mounting pieces 3g, which allows for strong attachment to the inner surface 2a of the wall. Moreover, in this embodiment, the outdoor mounting piece 3g is configured to extend linearly in the left-right direction from the groove back half 3e that is offset to the outdoor side of the outdoor groove piece 3c. As a result, the width between the two front and rear mounting pieces 3g is wider than in the case where the groove back half 3e is not formed, resulting in a more stable attachment. The two mounting pieces 3g, configured in this way, are then individually attached to a pair of connecting fittings 8 provided on the inner surface 2a of the wall, thereby simplifying the mounting structure.

[0014] Furthermore, in this case, the connecting fittings 8 arranged front and rear are short, L-shaped pieces in plan view, each having a structural side piece 8a attached to the inner surface 2a of the wall and a rail side piece 8b attached to the mounting piece 3g, and multiple such pieces are arranged with gaps in the vertical direction. Additionally, L-shaped intervening materials 11, each having a structural side intervening piece 11a and a rail side intervening piece 11b, are provided in a continuous vertical direction, sandwiched between the inner surface 2a of the wall and the structural side piece 8a, and between the mounting piece 3g and the rail side piece 8b. As a result, the gap between the upper and lower connecting fittings 8 is closed by the vertically continuous intervening materials 11, blocking communication between the inside and outside at the connecting fitting 8 location, thus providing fire and smoke protection.

[0015] Furthermore, when the front and rear connecting fittings 8 are attached and fixed to the inner surface 2a of the wall via bolts 9, the front and rear connecting fittings 8 are arranged in a staggered pattern, alternating front and rear in the vertical direction, and are attached and fixed to the inner surface 2a of the wall via bolts 9. As a result, the overlap of the effective area of ​​fixing strength to the inner surface 2a of the wall by each bolt 9 can be reduced, enabling efficient fixing while maintaining high fixing strength.

[0016] On the other hand, when attaching and fixing the mounting piece 3g provided on the guide rail 3 to the rail-side piece 8b of the connecting fitting via a bolt 9a, the mounting piece 3g has a bolt hole 3h that is elongated in the left-right direction. As a result, the mounting position of the guide rail 3 relative to the inner surface 2a of the wall can be freely adjusted in the left-right direction. Consequently, even if the construction of the inner surface 2a of the wall is not a vertical plane, the guide rail 3 can be easily installed vertically.

[0017] It should be noted that the present invention is not limited to the embodiments described above. As shown in the second mounting example in Figure 7, the connecting fitting 8 may be made into a long, continuous piece in the vertical direction and attached and fixed to the inner surface 2a of the wall via bolts 9 (note that in the drawings from Figure 7 onward, the anchor portion embedded in the building structure is omitted). In this case, the connecting fitting 8 has a structure that seals the inside and outside, so the intervening material 11 that was provided to provide fire prevention and smoke prevention functions as in the embodiments described above becomes unnecessary. In this case, the bolts 9 in the second embodiment are also attached in a staggered pattern, alternating between front and back in the vertical direction, similar to the case of the first embodiment.

[0018] Furthermore, as shown in the third mounting example in Figure 8, the mounting piece 3g of the guide rail 3 and the connecting fitting 8 may be attached and fixed by welding. The weld bead (welding mark) is indicated by reference numeral 13. Incidentally, in this design, the entire visible and hidden surfaces from the guide rail 3 to the connecting fitting 8 are covered with a decorative panel 14. The decorative panel 14 is installed extending from the covering material 12 provided in the guide groove 3a, and is composed of a hidden portion 14a that extends in the front-rear direction from the opening ends of the groove-side portions 3b and 3c inside and outside, and a visible portion 14b that is bent outward in the left-right direction from the front and rear tip edges of the hidden portion 14a and attached to the inner surface 2a of the wall. By configuring it in this way, the entire guide rail section from the guide rail 3 to the connecting fitting 8 is covered with the decorative panel 14, improving its appearance. Furthermore, by providing the decorative panel 14 in this manner, fire-resistant and smoke-resistant functions can be achieved, thus eliminating the need for the interfacing material 11.

[0019] Furthermore, in cases where, for example, due to the mounting structure of the bracket 6 to the building frame, a direct connection between the mounting piece 3g and the connecting fitting 8 is not possible and they are arranged with a gap in the left-right direction, the present invention allows for the mounting of the mounting piece 3g and the connecting fitting 8 via an L-shaped connecting member 15, which is arranged with a gap in the up-down direction and has one side fixed to the rail-side piece 8b of the connecting fitting 8, as shown in the fourth mounting example in Figures 9 and 10. In this embodiment, welding is used as the means of attaching the mounting piece 3g of the connecting member 15 to the connecting fitting 8, but it goes without saying that bolt fixing is also acceptable. In this design as well, the entire guide rail section is covered with a decorative panel 14, and the connecting members 15 are arranged in a staggered pattern, alternating between front and back in the vertical direction, allowing for simplified installation of the connecting members 15 while maintaining their strength.

[0020] Furthermore, the attachment piece 3g can be integrally formed with the guide rail 3, as shown in the second, third, and fourth embodiments in Figure 11. The guide rail 3 of the second embodiment shown in Figure 11(A) has corner sections 3f formed not only on the outdoor gutter side section 3c, as in the guide rail 3 of the first embodiment, but also on the indoor gutter side section 3b. This makes it possible to create a guide rail 3 that is oriented in the same direction as the left and right sides, improving convenience. Furthermore, the guide rail 3 shown in Figure 11(B) of the third embodiment has an extension portion 3i formed in a rectangular tubular shape on the open end half of the outdoor gutter side piece 3c on the side where the corner portion 3f of the guide rail 3 of the first embodiment is formed. This increases the strength of the opening portion of the guide groove 3a. Furthermore, the guide rail 3 of the fourth embodiment shown in Figure 11(C) has extensions 3i formed on the groove-side pieces 3b and 3c on both the indoor and outdoor sides, making both the indoor and outdoor sides cylindrical, and also has corners 3f. This makes it possible to create a guide rail 3 that is oriented in the same direction as the left and right sides, and also has the advantage of further increasing the strength of the opening portion of the guide groove 3a.

[0021] Furthermore, the guide rail 3 in which the present invention is implemented is not limited to those in which the mounting piece 3g is integrally formed with the guide rail 3, as in the embodiments described above. It is also possible for the mounting piece to be attached to the guide rail 3 as a separate component, as in the fifth and sixth embodiments shown in Figures 12 and later. These embodiments will be described below.

[0022] First, the structure common to the fifth and sixth embodiments will be described. In these embodiments, the guide rail 3 has a recessed groove (recessed fitting shape) guide groove 3a formed therein, which loosely fits the left and right edges of the shutter curtain 4, similar to the first embodiment. The guide groove 3a is formed in a recessed groove (recessed fitting shape) with an open side on the left and right side of the opening E (groove tip side), by comprising front and rear (indoor / outdoor) groove side pieces 3b, 3c and a groove bottom piece 3d. In this case, the outer gutter side portion 3c has a stepped shape where the inner half 3cb of the gutter bulges outwards toward the outside via a stepped portion 3cc relative to the outer half 3ca of the gutter. As a result, the width of the gutter at the inner side is wider than that of the outer side of the gutter. This creates a corner portion 3f between the outer half 3ca and the stepped portion 3cc, and the width of the guide groove 3a in the inner-outer direction is narrower at the outer half 3ca and wider at the inner half 3cb, with the corner portion 3f as the boundary.

[0023] On the other hand, the shutter curtain 4 that fits into the guide groove 3a of the guide rail 3 is constructed by connecting multiple slats 4a in a continuous manner by interlocking them vertically. In this embodiment, as shown in Figure 13, the slats 4a have their fitting portions 4b on both the left and right sides that fit into the guide rail 3 pressed towards the indoor side, leaving the left and right end edges 4c intact, resulting in a thin slat thickness. With this configuration, the shutter curtain 4 is fitted into the guide groove 3a with the fitting portions 4b formed on the slats 4a penetrating the narrower end half 3ca of the groove of the guide rail 3. Notches 4ba are formed on the left and right outer edges of the fitting portions 4b, creating a stepped locking portion 4d between the left and right outer edges of the fitting portions 4b and the remaining left and right end edges 4c. Furthermore, when the shutter curtain 4 is subjected to strong winds and bends, attempting to detach from the guide rail 3, the locking portion 4d is configured to engage with the corner portion 3f to prevent the shutter curtain 3 from coming off.

[0024] The guide rail 3, configured in this way, is then attached to the visible surface 2a, which is the inner surface in the left-right direction of the wall portion 2, which is a structural member. Therefore, the attachment piece provided on the guide rail 3 is not a pair of front and rear attachment pieces 3g that are integrally formed on the guide rail 3 and extend outward in the left-right direction from the front and rear groove side pieces 3b, 3c of the guide rail 3 beyond the groove bottom piece 3d, as in the embodiment described above, but rather a separate member is attached. In the fifth embodiment shown in Figures 12 to 17, the attachment piece is composed of a leg piece 16b formed on an attachment fitting 16 that is attached as a separate member. Incidentally, the guide rail 3 in this embodiment is installed at an entrance separating the indoor and outdoor areas, similar to the first embodiment described above. Therefore, the entire guide rail 3 is covered by an indoor and outdoor decorative panel 14. In this case, the covering material 12 installed in the guide groove has a projecting portion 12a that extends outward in the front-rear direction from the guide groove at the leading edges of the groove-side portions 3b and 3c of the indoor and outdoor areas, and the extended tip of the projecting portion 12a is connected to the decorative panel 14 via screws 12b. Furthermore, as a structure to reinforce this visible portion 12a, a double-plate structure can be adopted, as shown in Figure 17, in which a reinforcing plate 12c is fixed to the outer surface of the groove-side portions 3b and 3c by welding 12d.

[0025] The mounting bracket 16 is positioned to abut against the visible surface 3da, which is the left-right outer surface of the guide rail groove bottom piece 3d, and is fixed by welding 16aa to the corner between the groove bottom piece 3d and the indoor and outdoor groove side pieces 3b and 3c, and front and rear extensions that extend outward in the left-right direction from the inner and outer (front and rear) edges of the extension piece 16a. A gap was left in It is formed in a U-shape by a pair of leg pieces 16b. Incidentally, in this embodiment, the straddling piece 16a has a structure that extends on both sides in the indoor and outdoor direction beyond the indoor and outdoor groove side pieces 3b and 3c of the guide rail 3, and the leg pieces 16b are formed from these extended end edges, so that both leg pieces 16b face each other in a state that is wider than the opposing width of the indoor and outdoor groove side pieces 3b and 3c. The outer surface 16ba of the inner-inner-outer direction of the leg portion 16b is L-shaped, and the frame-side portion 8a of the connecting fitting 8 is fixed to the inner surface 2a of the wall portion by anchor bolts 9, and is attached and fixed to the rail-side portion 8b by welding 16bb. Of course, it goes without saying that the rail-side portion 8a and the leg portion 16b could also be fixed with bolts. Incidentally, the aforementioned staggered mounting structure of the guide rail 3 using the connecting fitting 8 is the same as in the first embodiment, so the explanation of its specific configuration will refer to the explanation of the first embodiment.

[0026] With this configuration, in the fifth embodiment as well, the guide rail 3 can be attached to the inner surface 2a of the wall, which is the visible surface, but in this case the attachment piece is fixed in contact with the visible surface 3da of the guide rail groove bottom piece 3d, and the front and rear attachment pieces extend outward in the left and right directions from both front and rear edges of the straddling piece 16a of the straddling piece 16a of the straddling piece 3d of the straddling piece 36a of the straddling piece 36 A gap was left in As it is composed of a pair of leg pieces 16b, the guide rail 3 can be attached to the structural side surface 2a with a simple mounting structure using a U-shaped mounting bracket 16, thus simplifying the installation work. Incidentally, this version is also equipped with a decorative panel 14, which provides fire and smoke protection functions, thus eliminating the need for the intervening material 11 as in the first embodiment described above.

[0027] Furthermore, the sixth embodiment shown in Figures 18 to 21 is provided as a shutter device 1 for partitioning an interior space front to back. In this embodiment, the guide rail 3 is configured without the decorative panel 14 as in the previous embodiment, but with the addition of an intervening material 11 to provide fire and smoke protection functions. Of course, it is also possible to configure it with the decorative panel 14 if necessary. In this design, the same guide rails 3 and slats 4a used in the fifth embodiment are employed, and the base halves 17a of a pair of front and rear mounting plates 17 are fixed by welding 17c to the visible surfaces of the groove-side halves 3bd and 3cd of the groove-side pieces 3b and 3c of the front and rear (inner and outer) groove-side pieces 3b and 3c of the guide rail 3, but the front and rear mounting plates 17 extend outward in the left-right direction beyond the groove-bottom piece 3d. A pair with a gap between them The leading half 17b is the mounting piece of the present invention.

[0028] In other words, in this embodiment, the leading half 17b of the mounting plate 17 that extends beyond the groove bottom piece 3d is connected to a connecting fitting 8 fixed to the inner surface 2a of the wall by an anchor bolt 9 via bolts and nuts 9a and 9b, as in the previously described embodiment. Even in this way, the guide rail 3 can be easily attached to the inner surface 2a of the wall, which is the visible surface on the building structure side. [Industrial applicability]

[0029] This invention can be used as a guide rail structure in a building shutter device installed at openings such as entrances to buildings such as office buildings and houses. [Explanation of symbols]

[0030] 1. Shutter device 2 wall 2a Inside wall 3 Guide rails 3a Guide groove 3b Indoor side groove side piece 3c Outdoor drainage ditch side section 3D groove bottom piece 3e Back half of groove 3F Corner Section 3g mounting piece 3h bolt holes 4. Shutter Curtain 8 Connecting fittings 8a Body side piece 8b Rail side piece 10 Wind-resistant components 11. Assistive devices 14 Decorative panels 16 Mounting hardware 16a Straddle part 16b Leg piece (Mounting piece) 17 Mounting board 17a Base half 17b First half (Mounting piece) E Opening

Claims

1. A building shutter device comprising guide rails provided on structural members on the left and right sides of openings such as entrances to buildings, a shutter curtain that is loosely fitted into guide grooves formed in the guide rails to open and close the opening, and a winding body provided above the opening on which the shutter curtain is wound, The guide rail is attached to the inner surface of the opening side of the structural member, The guide rail is formed in a concave groove shape with front and rear groove side pieces and a groove bottom piece at the back of the groove, and a locking receiving part is formed on at least one of the front and rear groove side pieces to prevent the shutter curtain from coming off the guide rail when the shutter curtain is deflected in the front and rear direction by strong winds, by engaging with a locking part provided on the shutter curtain. In the configuration in which the groove bottom portion of the guide rail is provided with an attachment piece that extends outward in the left-right direction beyond the groove bottom portion and is attached to the visible surface of the structural member, The aforementioned mounting pieces are provided in pairs with a gap between them at the front and back. A guide rail structure for a building shutter device, characterized in that a pair of mounting pieces, each having a gap between them, are attached to the visible surface of a structural member.

2. The guide rail structure for a building shutter device according to claim 1, characterized in that the mounting piece is a front and rear piece integrally formed with the guide rail so as to extend outward in the left-right direction from the front and rear groove-side pieces beyond the groove bottom piece.

3. The guide rail structure for a building shutter device according to claim 1, characterized in that the mounting piece is a pair of front and rear leg pieces that extend outward in the left-right direction from both front and rear edges of the straddling piece of the mounting bracket, which is fixed in contact with the visible surface of the groove bottom piece.

4. The guide rail structure for a building shutter device according to claim 1, characterized in that the mounting piece is a front and rear tip portion that extends outward in the left-right direction beyond the groove bottom portion of a pair of front and rear mounting plate materials, the base portion of which is fixed to the visible surface of the front and rear groove side pieces.

5. The guide rail structure for a building shutter device according to any one of claims 2 to 4, characterized in that the front and rear mounting pieces are each separately attached to a pair of front and rear connecting fittings provided on the visible surface of the structural member.

6. The guide rail structure for a building shutter device according to claim 5, characterized in that the front and rear connecting fittings each consist of a structural side piece attached to a structural side member and a rail side piece attached to the attachment piece, and multiple such fittings are arranged with gaps in the vertical direction, and an intervening material is provided in a state that is continuous in the vertical direction between the structural side member and the structural side piece, and between the attachment piece and the rail side piece.

7. The guide rail structure for a building shutter device according to claim 5, characterized in that the front and rear connecting fittings are fixed to the building structure side member via fasteners arranged in a staggered pattern that alternates between front and rear in the vertical direction.

8. The guide rail structure for a building shutter device according to claim 5, characterized in that the attachment of the mounting piece to the connecting fitting is a mounting that allows for left-right position adjustment via a fastening device.

9. The guide rail structure for a building shutter device according to claim 8, characterized in that the mounting piece and the connecting fitting are attached via a connecting member that is arranged with a gap in the vertical direction.

10. The guide rail structure for a building shutter device according to claim 9, characterized in that the front and rear connecting members that connect the front mounting pieces and connecting fittings are L-shaped angle materials and are arranged in a staggered pattern, alternating between front and rear in the vertical direction.

11. The guide rail structure for a building shutter device according to claim 1, characterized in that the front and rear visible surfaces of the guide rail, from the tip of the guide groove to the structural member, are covered with a decorative plate that is continuous in the vertical direction.

Images