Mounting structure of opening / closing device

Abstract

To provide a mounting structure of an opening / closing device capable of suppressing deformation of a plate while improving workability by realizing construction without fire.SOLUTION: An opening / closing device for opening / closing a building skeleton opening by raising / lowering an opening / closing body 13 includes a pair of upper and lower mounting bases 17, 19 arranged on the upper edge of the opening, a reinforcing member 35 fixed between the pair of upper and lower mounting bases 17, 19 above a guide rail 15 for guiding the raising / lowering of the opening / closing body 13 and forms a mounting surface 33 together with the mounting bases 17, 19, a bracket 23 for supporting a shaft 21 protruding from both the left and right ends of a winding body for winding the opening / closing body 13, a plate 25 fixed to a fixed base 47 of the bracket 23, a plate fastening member 42 for fixing at least the upper edge of the plate 25 to the mounting surface 33, and a bracket through fastening member 36 for penetrating and fixing the fixed base 47 and the plate 25 to the mounting surface 33.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a mounting structure for a switching device. [Background technology]

[0002] The brackets that support both ends of the shutter winding shaft are fixed to the building frame. In this case, the brackets are fixed across a pair of upper and lower mounting bases, which are structural members of the building frame, and are therefore firmly fixed to the building frame. The brackets support the entire weight of the shutter curtain, and are therefore firmly fixed to the building frame. The thickness and fixing structure of the brackets are changed according to the size (width and height) of the shutter curtain, the weight of the shutter curtain, and the diameter of the winding shaft that winds up the shutter curtain. Conventionally, the brackets were fixed by welding. The brackets have a rectangular fixing base at their base end that is parallel to the building frame, and this fixing base is welded to the mounting base. If the shutter curtain is not heavy, the fixing base is directly welded to the upper and lower mounting bases, but if it is heavy, a plate is welded to the bracket, and this plate is welded to the mounting base.

[0003] In addition, the upper and lower mounting bases have a predetermined distance between them as part of the building frame structure, but this does not necessarily match the vertical width of the shutter device (opening and closing device). For this reason, a vertical plate is welded and fixed across a pair of upper and lower horizontal mounting bases.

[0004] On the other hand, there are requests not to use firearms during welding work etc. Also, welding work that requires supporting the bracket and maintaining its mounting position is dangerous work at high altitudes.

[0005] Therefore, there is an installation method and construction structure in which the plate fixed to the bracket is fixed to the mounting base with fastening members such as bolts and nuts, rather than being welded. In this case, the plate is welded to the bracket in advance in the factory. This allows the plate to be fastened to the mounting base with bolts, etc. at the site. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] JP 2022-156562 A Summary of the Invention [Problem to be solved by the invention]

[0007] However, if the vertical length of the fixing base of the bracket welded to the plate is shorter than the distance between the upper and lower mounting bases, the weight of the opening / closing body (shutter curtain) on the bracket will concentrate on the upper side of the plate as a pulling force and will become a pushing force on the lower mounting base. Then, the plate hung over the mounting base may be deformed into an S-shape in side view due to the concentration of stress. If the plate is deformed in this way, the bracket may tilt forward, causing the opening / closing body to fall. Such deformation of the plate cannot be solved even if the fastening force of the upper first mounting part is made greater than the fastening force of the lower second mounting part using a second fastener whose nut part buckles and deforms, as in the configuration disclosed in Patent Document 1, and deformation of the plate occurs.

[0008] The present invention has been made in consideration of the above-mentioned circumstances, and its object is to provide a mounting structure for an opening and closing device that can achieve construction without fire, improve construction ease, and suppress deformation of the plate. [Means for solving the problem]

[0009] Next, means for solving the above problems will be described with reference to the drawings corresponding to the embodiments. The mounting structure of an opening and closing device according to claim 1 of the present invention is an opening and closing device that opens and closes an opening in a building frame by raising and lowering an opening and closing body 13, A pair of upper and lower mounting bases 17, 19 arranged on the upper edge of the opening; a reinforcing member 35 fixed between the pair of upper and lower mounting bases 17, 19 above a guide rail 15 that guides the lifting and lowering of the opening / closing body 13 and forms a mounting surface 33 together with the mounting bases 17, 19; A bracket 23 supports a shaft 21 protruding from both the left and right ends of a winding body that winds up the opening / closing body 13; A plate 25 fixed to the fixed base 47 of the bracket 23; a plate fastening member 42 for fixing at least an upper edge of the plate 25 to the mounting surface 33; a bracket-penetrating fastening member 36 that penetrates and fastens the fixed base 47 and the plate 25 to the mounting surface 33; The present invention is characterized by comprising:

[0010] In this mounting structure for an opening / closing device, an opening in a building frame is opened and closed by raising and lowering an opening / closing body 13. A pair of upper and lower horizontal mounting bases 17, 19 are provided on the upper edge of the opening. The pair of upper and lower mounting bases 17, 19 extend long and parallel across the width of the opening. The opening / closing body 13 is guided by a pair of left and right guide rails 15 that extend up and down at both edges on either side of the width of the opening. An imaginary extension line extending upward from the guide rails 15 intersects with the pair of upper and lower mounting bases 17, 19. A reinforcing member 35 is disposed between the pair of upper and lower mounting bases 17, 19 above the guide rail 15, and forms a mounting surface 33 together with the mounting bases 17, 19. The reinforcing member 35 is fixed to the structure by welding in a factory or the like beforehand and then transported to the site. The reinforcing member 35 can be, for example, an angle steel with an L-shaped horizontal cross section, one of whose vertical planes faces the front. Therefore, the bracket-penetrating fastening member 36 (bolt 37) that penetrates the reinforcing member 35 from the front can be tightened with a nut on the back surface of the reinforcing member 35. In this mounting structure for an opening and closing device, the mounting surface 33, which was conventionally formed only on the pair of upper and lower mounting bases 17, 19, is increased by the amount of the newly provided reinforcing member 35. A bracket penetrating fastening member 36 penetrating the fixed base 47 of the bracket 23 and the plate 25 is newly fastened to this increased mounting surface 33. 2, the upper side OA of the plate 25 is fixed to the mounting base 17. A moment acts on the fixed base 47 of the rectangle PDEF, which rotates the upper side PD in a direction away from the mounting base 17, with the lower side EF as a fulcrum, due to the load of the winding body that has wound up the opening-closing body 13. Then, in the conventional structure, the plate 25 tries to deform into an S-shape. In contrast, the plate 25 in the mounting structure for the opening and closing device of the present invention is fixed to the reinforcing material 35 between the pair of upper and lower mounting bases 17, 19 by bracket-penetrating fastening members 36 that penetrate the fixed base 47, making the plate 25 less likely to deform than if the middle portion of the plate 25 in the vertical direction was not fixed. As a result, the mounting structure for the opening and closing device has a higher bending strength of the plate 25 against the tensile load acting on the upper part of the plate 25 due to the load of the roll, i.e., the pulling force, compared to a structure in which only the upper and lower ends of the plate 25 to which the bracket 23 is fixed are fastened to the mounting surface 33 of the mounting base 17, 19. As a result, on-site welding is unnecessary, construction can be performed without fire, and construction can be improved while suppressing S-shaped deformation of the plate 25.

[0011] The mounting structure for a switching device according to claim 2 of the present invention is the mounting structure for a switching device according to claim 1, The reinforcing material 35 is fixed across the upper and lower mounting bases 17, 19, and the fixing base 47 is fastened and fixed to the reinforcing material 35.

[0012] In this mounting structure for a switching device, the reinforcing member 35 is fixed across the upper and lower mounting bases 17, 19. The bracket 23 has a fixed base 47 fastened to the reinforcing member 35. The reinforcing member 35 fixed across the upper and lower mounting bases 17, 19 is disposed between the mounting bases 17, 19, and has a higher load resistance against the load received from the bracket 23 than one in which the upper and lower mounting bases 17, 19 are not connected. In addition, the reinforcing material 35 arranged in a columnar (bundle) shape has its upper and lower ends fixed to the pair of spaced-apart upper and lower mounting bases 17, 19, thereby connecting the spaced-apart mounting bases 17, 19 to each other, thereby contributing to improving the strength of the pair of upper and lower mounting bases 17, 19.

[0013] The mounting structure for a switchgear according to claim 3 of the present invention is the mounting structure for a switchgear according to claim 1 or 2, A deformation suppressing piece 55 is provided on the vertical edge of the plate 25.

[0014] In this mounting structure for an opening / closing device, a frame-shaped deformation suppression piece 55 that protrudes vertically from the front of the plate 25 toward the viewer is provided on a vertical edge of the plate 25. The deformation suppression piece 55 can be provided by bending or by fixing a separate angle iron. The deformation suppression piece 55 is preferably provided on the outer vertical edge of the plate 25 that is formed into a rectangle when viewed from the front. This is because providing the deformation suppression piece 55 on the inner vertical edge prevents the deformation suppression piece 55 from easily interfering with the outer peripheral surface of the opening / closing body wound around the winding body. The bending strength (bending rigidity) of the plate 25 is increased by providing the deformation suppression pieces 55 on the vertical edges. As a result, the mounting structure for the switching device has a higher bending strength of the plate 25 against a tensile load acting on the upper part of the plate 25 due to the load of the winding body, compared to a case in which the plate 25 is a flat plate.

[0015] The mounting structure for a switchgear according to claim 4 of the present invention is the mounting structure for a switchgear according to claim 1 or 2, The vertical length of the fixed base 47 is longer than the distance between the pair of upper and lower mounting bases 17, 19, and is characterized in that it overlaps the mounting surfaces 33 of the mounting bases 17, 19.

[0016] In this mounting structure for an opening and closing device, the vertical length of the fixed base 47 is longer than the distance between a pair of upper and lower mounting bases, and the fixed base 47 overlaps the mounting surface 33 of the mounting base. In this configuration, the bracket penetrating fastening member 36 that penetrates the fixed base 47 and the plate 25 can be fastened to the reinforcing member 35 and the upper and lower mounting bases 17, 19. The fixed base 47 that is overlapped and fixed to the plate 25 is also overlapped with the upper and lower mounting bases 17, 17, and the three members of the plate 25, the fixed base 47, and the mounting bases are fastened together, so that the bending strength of the plate 25 is further increased.

[0017] The mounting structure for a switching device according to claim 5 of the present invention is the mounting structure for a switching device according to claim 3, The vertical length of the fixed base 47 is longer than the distance between the pair of upper and lower mounting bases 17, 19, and is characterized in that it overlaps the mounting surfaces 33 of the mounting bases 17, 19.

[0018] In this mounting structure for a switching device, the operation is the same as that of claim 4.

[0019] The mounting structure for a switching device according to claim 6 of the present invention is the mounting structure for a switching device according to claim 4, It is characterized in that at least an upper end 61 in the vertical length direction of the fixed base 47 is positioned above the plate fastening member 42 .

[0020] In this mounting structure for an opening and closing device, at least the upper end 61 in the vertical length direction of the fixed base 47 is located above the plate fastening member 42. In other words, the position of the plate fastening member 42 that fastens the upper part of the plate 25 to the mounting base 17 is provided below the fixed position of the upper end 61 of the fixed base 47 that is fixed to the bracket 23. This makes it possible to suppress deformation of the plate 25 by the rigidity of the bracket 23.

[0021] The mounting structure for a switching device according to claim 7 of the present invention is the mounting structure for a switching device according to claim 5, It is characterized in that at least an upper end 61 in the vertical length direction of the fixed base 47 is positioned above the plate fastening member 42 .

[0022] In this mounting structure for a switching device, the operation is the same as that of claim 6.

[0023] The mounting structure of an opening and closing device according to claim 8 of the present invention is an opening and closing device that opens and closes an opening in a building frame by raising and lowering an opening and closing body 13, A pair of upper and lower mounting bases 17, 19 are arranged at the upper edge of the opening; A bracket 23 supports a shaft 21 protruding from both the left and right ends of a winding body that winds up the opening / closing body 13; A plate 25 fixed to the fixed base 47 of the bracket 23; A plate fastening member 42 that penetrates and fixes the plate 25 to the mounting surface 33 of the mounting base; Equipped with The vertical length of the fixed base 47 is longer than the distance between the pair of upper and lower mounting bases 17, 19, The fixed base 47 is characterized in that it overlaps the mounting surface 33 .

[0024] In this mounting structure for an opening and closing device, no reinforcing member 35 is provided between the pair of upper and lower mounting bases 17, 19, but the position of the plate fastening member 42 that fastens the upper part of the plate 25 to the mounting base 17 is provided below the fixed position of the upper end 61 of the fixed base 47 fixed to the bracket 23. This makes it possible to suppress deformation of the plate 25 by the rigidity of the bracket 23. That is, the relationship between the fixing position of the upper end 61 of the fixed base 47 fixed to the bracket 23 and the position of the plate fastening member 42 fastening the upper part of the plate 25 to the mounting base 17 makes the plate 25 less likely to deform. Also, since the bracket penetrating fastening member 36 that penetrates the fixed base 47 is not required, construction is facilitated. Furthermore, since the reinforcing member 35 that spans the pair of upper and lower mounting bases 17, 19 is omitted, the mounting structure is simplified. Therefore, according to this mounting structure for the opening and closing device, even with a simple configuration in which reinforcing material 35 is not provided, the bracket itself acts to prevent deformation of plate 25, and the bending strength of plate 25 is increased with easy construction.

[0025] The mounting structure for a switching device according to claim 9 of the present invention is the mounting structure for a switching device according to claim 8, At least an upper end 61 side in the vertical length direction of the fixed base 47 overlapping the mounting surface 33 is fastened and fixed by a bracket penetrating fastening member 36.

[0026] In this mounting structure for an opening and closing device, at least the upper end 61 side in the vertical length direction of the fixed base 47 overlapping the mounting surface 33 is fastened and fixed by the bracket-penetrating fastening member 36. In this case, a one-sided bolt 43 is used for the bracket-penetrating fastening member 36. Also, in this mounting structure for an opening and closing device, the reinforcing member 35 spanning the pair of upper and lower mounting bases 17, 19 is omitted, so the mounting structure is simplified. Therefore, according to this opening and closing device mounting structure, even with a simple configuration in which reinforcing material 35 is not provided, the bracket-penetrating fastening member 36 penetrates the fixed base 47 and the plate 25 and is fastened to the mounting base 17, thereby increasing the bending strength of the plate 25 and making it resistant to pull-out forces. Effect of the Invention

[0027] According to the mounting structure for an opening and closing device described in claim 1 of the present invention, a reinforcing material which forms the mounting surface together with the mounting base is fixed between the upper and lower mounting bases, and is fastened to the mounting surface by a bracket-penetrating fastening member which penetrates the fixed base and the plate. This increases the bending strength of the plate, enables construction without fire, and improves workability while suppressing deformation of the plate, thereby improving safety by resisting the pull-out force on the fastening member.

[0028] According to the mounting structure for an opening and closing device described in claim 2 of the present invention, a bracket-penetrating fastening member that penetrates the fixed base and the plate is fixed to a reinforcing material fixed across the upper and lower mounting bases, so that the fixed base and the plate can be fastened together to the mounting surface added to the base side, thereby suppressing deformation of the plate and ensuring safety.

[0029] According to the mounting structure for an opening and closing device as described in claim 3 of the present invention, by adding a frame-shaped deformation suppression piece perpendicular to the mounting surface to the vertical edge of the plate, which was originally a sheet material parallel to the mounting surface, the bending strength of the plate itself can be increased, deformation of the plate can be suppressed, and safety can be more firmly ensured.

[0030] According to the mounting structure for an opening and closing device described in claim 4 of the present invention, the vertical length of the fixed base is longer than the distance between the pair of upper and lower mounting bases and overlaps the mounting surface of the mounting base, so that the portion sandwiched between the mounting surface and the fixed base can be made into a plate, the bending strength of the plate can be increased, deformation of the plate can be suppressed, and safety can be ensured.

[0031] According to the mounting structure for a switchgear according to the fifth aspect of the present invention, the same effects as those of the fourth aspect can be obtained.

[0032] According to the mounting structure for an opening and closing device described in claim 6 of the present invention, by positioning the upper end of the fixed base above the plate fastening member, which is the fixed position between the plate and the mounting base, deformation of the plate due to the pull-out force applied to the plate fastening member can be suppressed by the rigidity of the bracket.

[0033] According to the mounting structure for a switching device recited in claim 7 of the present invention, the same effects as those of claim 6 can be obtained.

[0034] According to the mounting structure for an opening and closing device described in claim 8 of the present invention, the reinforcing material spanning between the pair of upper and lower mounting bases is omitted, but since the vertical length direction of the fixed base is longer than the distance between the pair of upper and lower mounting bases and the fixed base overlaps the mounting surface, the bracket itself can function to prevent deformation of the plate, thereby increasing the bending strength of the plate, suppressing deformation of the plate, and ensuring safety.

[0035] According to the mounting structure for a switching device as set forth in claim 9 of the present invention, the bending strength of the plate is increased with a simple structure, deformation of the plate is suppressed, and the plate can resist a pull-out force, thereby ensuring safety. [Brief description of the drawings]

[0036] [Figure 1] FIG. 2 is an overall perspective view showing a heavy-duty shutter device equipped with an opening / closing device mounting structure. [Diagram 2] FIG. [Diagram 3] FIG. [Figure 4] FIG. [Diagram 5] FIG. 13 is a plan view of a first modified example in which a deformation suppressing piece is provided on a plate. [Figure 6] FIG. 11 is a plan view of a first modified example in which a deformation suppression piece is provided on a vertical edge of the plate. [Figure 7] FIG. 11 is a front view of variant 2 in which the reinforcement members are upper and lower horizontal reinforcement members. [Figure 8] FIG. 13 is a front view of Modification 2 in which the reinforcing material is only a horizontal lower reinforcing material. [Figure 9] FIG. 13 is a front view of Modification 2 in which the reinforcing material is only a horizontal upper reinforcing material. [Figure 10] FIG. 13(a) is a front view of a mounting structure according to a third modified example in which the reinforcing material is omitted, and (b) is a side view of (a). [Figure 11] FIG. 11 is a front view showing a mounting structure for an opening and closing device according to a third modified example, in which the lower end position is different. [Figure 12] FIG. 11 is a side view showing a mounting structure of a comparative example. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0037] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is an overall perspective view showing a heavy-duty shutter device 11 equipped with an opening and closing device mounting structure. In the mounting structure for an opening and closing device according to this embodiment, the opening and closing device is a heavy-duty shutter device 11. The shutter device 11 opens and closes an opening in a building frame by raising and lowering an opening and closing body. The opening and closing body 13 can be a general shutter curtain in which multiple aluminum or steel slats are connected, or it can be an opening and closing body made of a panel material or a resin sheet.

[0038] A pair of left and right guide rails 15 are provided on both sides of the width of the opening, extending vertically. The guide rails 15 have a guide groove with a U-shaped cross section, and the guide grooves sandwich both edges of the shutter curtain 13 to guide it up and down. A pair of parallel mounting bases, each of which is long and extends vertically across the width of the opening, are arranged on the upper edge of the opening. The mounting bases are fixed to the building frame by welding or the like, for example, with square pipes made of steel. In this embodiment, the mounting bases are made of an upper mounting base 17 on the upper level and a lower mounting base 19 on the lower level. Both ends of the mounting base in the longitudinal direction are at least up to a position where they intersect with an imaginary extension line extending upward from the guide rails 15.

[0039] The shutter device 11 has a take-up body (not shown) that takes up the shutter curtain 13. The take-up body is rotatably supported by shafts 21 protruding from both the left and right ends. The shafts 21 are supported by brackets 23. The brackets 23 have a fixed base fixed to a plate 25. The plate 25 is fixed across a pair of upper and lower mounting bases 17, 19. An opening / closing machine 27 having an electric motor is attached to one of the brackets 23. When the drive shaft of the opening / closing machine 27 is rotated, the shaft 21 is rotated by an endless chain or the like stretched between the drive shaft and the shaft 21 of the take-up body. As a result, the shutter curtain 13 is taken up from the opening or paid out to the opening.

[0040] The outer periphery of the shutter curtain 13 wound up on the winding body is covered by a cover 29 provided on, for example, the mounting base. A plurality of frame members 31 formed in a U-shape surrounding the cover 29 are fixed to the mounting base at predetermined intervals in the longitudinal direction of the winding body. The mounting structure for the opening and closing device according to this embodiment includes a reinforcing member fixed between the mounting bases above the guide rail 15.

[0041] The mounting structure of the opening and closing device will be described in more detail below.

[0042] FIG. 2 is an exploded perspective view of the vicinity of the reinforcing material. A reinforcing member 35 is disposed between the upper and lower mounting bases 17 and 19, which are above the guide rail 15 (see FIG. 1), and forms a mounting surface 33 together with the mounting bases. "Disposed between the mounting bases" means that the reinforcing member 35 is fixed to and continuous with at least one of the mounting bases between the upper and lower mounting bases. In other words, the reinforcing member 35 does not necessarily have to be disposed across the pair of upper and lower mounting bases. Of course, the reinforcing member 35 may be disposed across the pair of upper and lower mounting bases.

[0043] In this embodiment, an example will be described in which the reinforcing member 35 is provided in a columnar (bundle) shape across a pair of upper and lower mounting bases. The reinforcing member 35 is fixed by welding in advance at a factory or the like as construction on the frame side and then transported to the site. The reinforcing member 35 can be, for example, an angle steel having an L-shaped horizontal cross section with one vertical plane facing the front. Therefore, the bolt 37 that penetrates the reinforcing member 35 from the front can be fastened using a nut 39 on the back surface of the reinforcing member 35. A through hole 41 through which the bolt 37 penetrates is drilled in advance in the reinforcing member 35.

[0044] A rectangular plate 25 is fixed to the pair of upper and lower mounting bases 17, 19 on which the reinforcing member 35 is provided so as to cover the reinforcing member 35 from the front. The upper and lower ends of the plate 25 are arranged across the pair of upper and lower mounting bases 17, 19, and the vertical middle part is fixed to the reinforcing member 35. The upper and lower ends of the plate 25 and the mounting bases 17, 19 are fastened by plate fastening members 42. That is, the mounting structure of the opening and closing device has a plate fastening member 42 that fixes at least the upper edge of the plate 25 to the mounting surface 33. The plate fastening member 42 can be a normal bolt and nut or a one-side bolt 43. When the mounting bases 17, 19 are formed of, for example, square pipes, the one-side bolt 43 is used to fix the plate 25. In this case, a through hole 41 through which the one-side bolt 43 is inserted is drilled in the plate 25, and a pilot hole 45 corresponding to the through hole 41 is drilled in the mounting bases 17, 19 into which the one-side bolt 43 is crimped and fixed.

[0045] A rectangular bracket 23 protruding vertically forward is fixed to the front of the plate 25. A fixed base 47 is formed at the base end of the bracket 23 on the plate side, which is bent vertically so as to be parallel to the plate 25. The fixed base 47 of the bracket 23 is fixed to the plate 25 in advance by welding at a factory or the like. Therefore, the plate 25 is thick at the location where the fixed base 47 is welded. A through hole 41 for inserting the bolt 37 or one-side bolt 43 is drilled through the plate 25 in the fixed base 47.

[0046] A pair of brackets 23 are used on the left and right, and support the shafts 21 protruding from both the left and right ends of the winding body that winds up the shutter curtain 13 on the left and right. A bearing groove 49 is formed in the bracket 23, which is cut from a vertical edge protruding toward the front to a midway position toward the plate 25. The winding body is supported by the bracket 23 by inserting the shaft 21 into the bearing groove 49 from the front side. More specifically, the shaft 21 inserted into the bearing groove 49 is supported rotatably by the bracket 23 via a bearing (not shown) that is fixed to the outer surface of the bracket 23. An upper reinforcing edge 51 and a lower reinforcing edge 53 for reinforcing are bent and formed on the upper and lower edges of the bracket 23. As a result, the entire weight of the winding body that has wound up the shutter curtain 13 is supported by the pair of upper and lower mounting bases 17, 19 and the reinforcing material 35 via the bracket 23 and the plate 25.

[0047] Here, the bracket 23 fixed to the plate 25 is fixed to the reinforcing material 35 by the bracket penetrating fastening member 36 which penetrates the fixing base 47 and the plate 25. That is, the mounting structure of the opening and closing device has the bracket penetrating fastening member 36 which penetrates the fixing base 47 and the plate 25 to the mounting surface 33 and fixes them. A normal bolt and nut or a one-sided bolt 43 can be used for the bracket penetrating fastening member 39. Procedurally, the bracket penetrating fastening member 36 is fixed to the mounting surface 33 of the reinforcing material 35, so that the plate 25 is positioned so as to overlap the pair of upper and lower mounting bases 17, 19. Next, a pilot hole 45 is drilled in the mounting base at the site in accordance with the through hole 41 drilled in advance in the plate 25. The plate 25 and the mounting bases 17, 19 are fixed by a fastening operation only from the front side by inserting a plate fastening member 42 such as a one-sided bolt 43.

[0048] In other words, in addition to the upper and lower ends of the plate 25 welded to the fixed base 47 being fastened and fixed to a pair of upper and lower mounting bases 17, 19, the fixed base 47 together with the plate 25 is further fastened and fixed to the reinforcing material 35.

[0049] FIG. 3 is a plan view of the vicinity of the reinforcing material. The fixed base 47 of the bracket 23 is fixed by screwing a nut 39 onto a bolt 37, which is a bracket-penetrating fastening member 36 that penetrates the fixed base 47, the plate 25, and the reinforcing member 35, thereby fastening the three members together. Since the fixed base 47 is fixed to the plate 25 by welding, the fastening structure is an appropriate fastening structure in a direction that restricts peeling of the welded portion. In addition, the plate 25 to which the fixed base 47 is welded is fixed to the upper mounting base 17 and the lower mounting base 19 by fastening the four corners with one-sided bolts 43, which are plate fastening members 42.

[0050] FIG. 4 is a side view of the vicinity of the reinforcing material. The fixing base 47 can be fixed by screwing a nut 39 onto the tip of the bolt 37 protruding from the back of the reinforcement 35, since the reinforcement 35 is an angle steel. On the other hand, if the upper mounting base 17 and the lower mounting base 19 are square pipes, it is impossible to screw the nut 39 from the back, so a one-sided bolt 43 is used. When the one-sided bolt 43 is inserted into the pilot hole 45 from the through hole 41 and turned, the member expands at the bolt tip side, preventing it from coming out of the through hole 41. When tightened, the expanding member gradually expands on the back side of the pilot hole 45, and is tightened and prevented from coming out. The plate fastening member 42 can also be fastened with normal bolts and nuts depending on the object.

[0051] If the fastening member is a combination of bolts and nuts, it can be loosened and retightened. Therefore, when fixing the plate 25 to the reinforcing member 35, the position of the bracket 23 to the base is temporarily fixed with the bolts and nuts which are the bracket penetrating fastening members 36. Once the position is decided, that is, once the position adjustment of the bracket 23 is completed, pilot holes 45 are drilled in the mounting bases 17, 19 in accordance with the through holes 41 at the top and bottom ends of the plate, and the plate is fixed with the one-sided bolt 43 which is the plate fastening member 42. After that, the nut 39 is finally fastened to the bolt 37. In other words, the bolt and nut combination can be used to temporarily fasten and position the bracket 23 by fastening the bolt to the reinforcing member 35.

[0052] Next, a modification of the configuration according to the above embodiment will be described.

[0053] [Variation 1] FIG. 5 is a plan view of a first modified example in which a deformation suppressing piece 55 is provided on a plate 25. As shown in FIG. In the mounting structure of the opening and closing device according to the first modification, a frame-shaped deformation suppression piece 55 formed by bending is provided on a vertical edge of the plate 25. The deformation suppression piece 55 is provided on the vertical edge on the opposite side to the winding body across the bracket 23.

[0054] FIG. 6 is a plan view of a first modified example in which plate 25 is provided with deformation suppression pieces 55 on its vertical edges. The deformation suppression piece 55 provided on the plate 25 may be fixed by bending or by welding an angle iron separate from the plate 25. In this case as well, the deformation suppression piece 55 is provided on the vertical edge on the opposite side of the bracket 23 from the winding body.

[0055] [Variation 2] FIG. 7 is a front view of the second modification in which the reinforcing members are upper reinforcing members 57 and lower reinforcing members 59 in the horizontal direction. In the mounting structure of the opening and closing device according to the second modification, a horizontal upper reinforcement member 57 having a mounting surface 33 is fixed to the upper mounting base 17. Also, a horizontal lower reinforcement member 59 having a mounting surface 33 is fixed to the lower mounting base 19. The upper reinforcement member 57 and the lower reinforcement member 59 can be, for example, angle irons whose mounting surfaces 33 are arranged on the same plane as the mounting surface 33 of the mounting base.

[0056] In this mounting structure for an opening and closing device, at least the upper end 61 in the vertical length direction of the fixed base 47 is located above the plate fastening member 42 (bolt 37) by the dimension d. In other words, the position of the plate fastening member 42 (bolt 37) that fastens the upper part of the plate 25 to the mounting base 17 is provided below the fixed position of the upper end 61 of the fixed base 47 that is fixed to the bracket 23. Note that in the second modification, the lower end 63 in the vertical length direction of the fixed base 47 is located below the plate fastening member 42 (bolt 37) by the dimension d.

[0057] FIG. 8 is a front view of the second modification in which the reinforcing material is only a horizontal lower reinforcing material 59. FIG. In the mounting structure of the opening and closing device according to the second modification, the horizontal lower reinforcing member 59 having the mounting surface 33 may be fixed only to the lower mounting base 19 .

[0058] FIG. 9 is a front view of Modification 2 in which the reinforcing material is only upper horizontal reinforcing material 57. FIG. In the mounting structure of the opening and closing device according to the second modification, the horizontal upper reinforcing member 57 having the mounting surface 33 may be fixed only to the upper mounting base 17 .

[0059] [Variation 3] FIG. 10(a) is a front view of a mounting structure according to a third modified example in which the reinforcing member 35 is omitted, and (b) is a side view of (a). The reinforcing material is omitted in the mounting structure of the opening and closing device according to the modified example 3. As an alternative configuration, the vertical length of the fixed base 47 of the plate 25 is longer than the distance between a pair of upper and lower mounting bases, and overlaps the mounting surface 33 of the mounting base.

[0060] In this mounting structure for an opening and closing device, at least the upper end 61 in the vertical length direction of the fixed base 47 overlapping the mounting surface 33 is disposed above the plate fastening member 42. That is, the upper end 61 is located above the plate fastening member 42 (one-sided bolt 43) by a dimension d. Also, the lower end 63 in the vertical length direction of the fixed base 47 is located below the plate fastening member 42 (one-sided bolt 43) by the dimension d.

[0061] FIG. 11 is a front view of the mounting structure for an opening and closing device according to the third modification, in which the lower end position is different. In the mounting structure of the opening and closing device according to the third modification, the lower end 63 in the vertical length direction of the fixed base 47 may be located above the plate fastening member 42 (one-side bolt 43) by the dimension e. Since the lower end 63 is subjected to a pressing load against the lower reinforcement 59, unlike the upper end 61, the overlapping space (covering space) can be made small by being located above the plate fastening member 42.

[0062] Next, the operation of the above-mentioned configuration will be described.

[0063] In the mounting structure for an opening and closing device according to this embodiment, an opening in a building frame is opened and closed by raising and lowering a shutter curtain 13. A pair of upper and lower horizontal mounting bases 17, 19 are provided on the upper edge of the opening. The pair of upper and lower mounting bases 17, 19 extend long and parallel across the width of the opening. The shutter curtain 13 is guided by a pair of left and right guide rails 15 that extend vertically at both edges on either side of the width of the opening. An imaginary extension line extending upward from the guide rails 15 intersects with the pair of upper and lower mounting bases 17, 19.

[0064] In this mounting structure for an opening and closing device, the mounting surface 33, which was conventionally formed only on the pair of upper and lower mounting bases 17, 19, is increased in area by the newly provided reinforcing member 35. A bracket penetrating fastening member 36 penetrating the fixed base 47 of the bracket 23 and the plate 25 is newly fastened to this increased mounting surface 33.

[0065] FIG. 12 is a side view showing a mounting structure of a comparative example. Here, the upper side OA of plate 25 of rectangular OACB shown in Fig. 2 is fixed to the mounting base 17. A moment acts on fixed base 47 of rectangle PDEF, which rotates upper side PD in a direction away from mounting base 17 with lower side EF as a fulcrum, due to the load W of the rolled up shutter curtain 13. Then, in the structure according to the comparative example, plate 25 tries to deform into an S-shape as shown in Fig. 12, and a force is generated to pull out plate fastening member 42 that fixes the upper side OA.

[0066] In contrast, plate 25 in the mounting structure for the opening and closing device of the present invention is fixed to reinforcing material 35 provided between a pair of upper and lower mounting bases 17, 19 by bracket-penetrating fastening member 36 that penetrates fixed base 47 (see Figure 4), making the plate 25 less susceptible to deformation than if the middle part of the plate 25 in the vertical direction was not fixed.

[0067] As a result, the mounting structure for the opening and closing device resists the tensile load acting on the upper part of plate 25 due to the load W of the winding body, and the bending strength of plate 25 is increased, compared to a structure in which only the upper and lower ends of plate 25 to which bracket 23 is fixed are fastened and fixed to mounting surface 33 of mounting bases 17, 19. As a result, on-site welding is unnecessary, construction without fire is realized, and construction efficiency is improved, while S-shaped deformation of plate 25 as in the comparative example shown in Fig. 12 can be suppressed.

[0068] In addition, in this mounting structure for the opening and closing device, the reinforcing member 35 is fixed across the upper and lower mounting bases 17, 19. The bracket 23 has a fixed base 47 fastened to the reinforcing member 35. The reinforcing member 35 fixed across the upper and lower mounting bases 17, 19 is disposed between the mounting bases 17, 19, and has a higher load resistance against the load received from the bracket 23 than one in which the upper and lower mounting bases 17, 19 are not connected.

[0069] In addition, the reinforcing material 35 provided in a columnar (bundle) shape has its upper and lower ends fixed to the spaced-apart pair of upper and lower mounting bases 17, 19, thereby connecting the spaced-apart mounting bases 17, 19 to each other, thereby contributing to improving the strength of the mounting bases 17, 19. As a result, the fixing base 47 and the plate 25 can be fastened together to the mounting surface 33 added to the base side, so that deformation of the plate 25 can be more firmly suppressed and safety can be ensured.

[0070] Furthermore, in this mounting structure for an opening / closing device, a frame-shaped deformation inhibiting piece 55 that protrudes vertically from the front of the plate 25 toward the user is provided on a vertical edge of the plate 25. The deformation inhibiting piece 55 can be provided by bending or by fixing a separate angle iron. The deformation inhibiting piece 55 is preferably provided on the outer vertical edge of the plate 25 that is formed into a rectangle when viewed from the front. In this way, by providing the deformation inhibiting piece 55 on the inner vertical edge, it is possible to prevent the deformation inhibiting piece 55 from easily interfering with the outer peripheral surface of the opening / closing body that is wound around the shaft center 65 (see Figs. 5 and 6).

[0071] The bending strength (bending rigidity) of plate 25 is increased by providing this deformation suppression piece 55 on the vertical edge. Compared to when plate 25 is a flat plate, the mounting structure of the opening and closing device has increased strength against the tensile load acting on the upper part of plate 25 due to the load of the winding body. As a result, by adding deformation suppression pieces 55 perpendicular to mounting surface 33 to the vertical edge of plate 25, which was previously a plate material parallel to mounting surface 33, the bending strength of plate 25 can be increased, deformation of plate 25 can be suppressed, and safety can be more reliably ensured.

[0072] In addition, in this mounting structure for an opening and closing device, the vertical length of the fixed base 47 may be longer than the distance between the pair of upper and lower mounting bases, and the fixed base 47 may overlap the mounting surface 33 of the mounting base. In this configuration, the bracket penetrating fastening member 36 that penetrates the fixed base 47 and the plate 25 can be fastened to the reinforcing member 35 and the upper and lower mounting bases 17, 19, respectively.

[0073] The fixed base 47, which is overlapped and fixed to the plate 25, is also overlapped with the upper and lower mounting bases 17, 19, and the three members of the plate 25, fixed base 47, and mounting base are fastened together, further increasing the bending strength of the plate 25. As a result, the plate 25 is sandwiched between the mounting surface 33 and the fixed base 47, which increases the bending strength of the plate 25 and suppresses deformation of the plate 25 to ensure safety.

[0074] Furthermore, in this mounting structure for an opening and closing device, at least the upper end 61 side in the vertical length direction of the fixed base 47 is located above the plate fastening member 42. In other words, the position of the plate fastening member 42 that fastens the upper part of the plate 25 to the mounting base 17 is provided below the fixed position of the upper end 61 of the fixed base 47 that is fixed to the plate 25. This makes it possible to suppress deformation of the plate 25 by the rigidity of the bracket 23. As a result, deformation of the plate 25 due to a force (pulling force) applied to the plate fastening member 42 can be suppressed by the rigidity of the bracket 23.

[0075] In addition, in this mounting structure for an opening and closing device, no reinforcing member 35 is provided between the pair of upper and lower mounting bases 17, 19, but the position of the plate fastening member 42 that fastens the upper part of the plate 25 to the mounting base 17 is provided below the fixed position of the upper end 61 of the fixed base 47 fixed to the plate 25. This makes it possible to suppress deformation of the plate 25 by the rigidity of the bracket 23.

[0076] That is, the plate 25 is made less likely to deform due to the relationship between the fixing position of the upper end 61 on the fixed base 47 and the position of the plate fastening member 42 that fastens the upper part of the plate 25 to the mounting base 17. Also, since the bracket penetrating fastening member 36 that penetrates the fixed base 47 is not required, construction is facilitated. Furthermore, since the reinforcing member 35 that spans the pair of upper and lower mounting bases 17, 19 is omitted, the mounting structure is simplified.

[0077] Therefore, in this opening and closing device mounting structure, even with a simple configuration in which reinforcing member 35 is not provided, the bracket itself acts to prevent deformation of plate 25, and easy construction increases the bending strength of plate 25. As a result, the bracket itself can act to prevent deformation of plate 25, increasing the bending strength of plate 25, suppressing deformation of plate 25 and ensuring safety.

[0078] In addition, in this mounting structure for an opening and closing device, at least the upper end 61 side in the vertical length direction of the fixed base 47 overlapping the mounting surface 33 is fastened and fixed by the bracket penetrating fastening member 36. In this case, the bracket penetrating fastening member 36 can be fastened and fixed to the mounting base 17 by using a one-sided bolt 43, similar to the plate fastening member 42. In this mounting structure for an opening and closing device, the reinforcing member 35 spanning the pair of upper and lower mounting bases 17, 19 is omitted, so the mounting structure is simplified.

[0079] In this mounting structure for an opening and closing device, even with a simple configuration in which reinforcing material 35 is not provided, the fixing base 47 fixed to plate 25 overlaps the pair of upper and lower mounting bases 17, 19 at a distance longer than the vertical distance of bracket-penetrating fastening member 36, thereby increasing the bending strength of plate 25. As a result, the bending strength of plate 25 is increased with a simple structure, and deformation of plate 25 can be suppressed to ensure safety.

[0080] Therefore, according to the mounting structure of the opening and closing device of this embodiment, the bending strength of plate 25 can be increased, and by being able to fix it to the mounting bases 17, 19 with fastening members, construction can be performed without fire, improving construction ease while suppressing deformation of plate 25. [Explanation of symbols]

[0081] 11...Opening and closing device (shutter device) 13...Opening and closing body (shutter curtain) 15...Guide rail 17...Mounting base (upper mounting base) 19...Mounting base (lower mounting base) 21...Axis 23…Bracket 25…Plate 33…Mounting surface 35…Reinforcement material 36... Bracket penetrating fastening member 42...Plate fastening member 47…Fixed base 55…Deformation prevention piece 57…Upper reinforcement 59…Lower reinforcement 61…Top end

Claims

1. An opening and closing device that opens and closes an opening in a building skeleton by raising and lowering an opening and closing body, A pair of upper and lower mounting bases arranged on the upper edge of the opening; a reinforcing member fixed between the pair of upper and lower mounting bases above a guide rail that guides the lifting and lowering of the opening and closing body, and forming a mounting surface together with the mounting base; a bracket for supporting shafts protruding from both left and right ends of a winding body that winds up the opening / closing body; a plate fixed to a fixed base of the bracket; a plate fastening member for fastening at least an upper edge of the plate to the mounting surface; a bracket-penetrating fastening member that penetrates and fastens the fixed base and the plate to the mounting surface; A mounting structure for a switching device, comprising:

2. 2. The mounting structure for a switchgear according to claim 1, wherein the reinforcing material is fixed across the upper and lower mounting bases, and the fixing base is fastened to the reinforcing material.

3. 3. The mounting structure for a switching device according to claim 1, wherein a deformation suppressing piece is provided on a vertical edge of the plate.

4. 3. The mounting structure for an opening and closing device according to claim 1, wherein the vertical length of the fixed base is longer than the distance between the pair of upper and lower mounting bases and overlaps the mounting surfaces of the mounting bases.

5. 4. The mounting structure for an opening and closing device according to claim 3, wherein the vertical length of the fixed base is longer than the distance between the pair of upper and lower mounting bases and overlaps the mounting surfaces of the mounting bases.

6. 5. The mounting structure for an opening and closing device according to claim 4, wherein at least an upper end of the fixed base in the vertical length direction is positioned above the plate fastening member.

7. 6. The mounting structure for an opening and closing device according to claim 5, wherein at least an upper end of the fixed base in the vertical length direction is positioned above the plate fastening member.

8. An opening and closing device that opens and closes an opening in a building skeleton by raising and lowering an opening and closing body, A pair of upper and lower mounting bases are disposed on the upper edge of the opening; a bracket for supporting shafts protruding from both left and right ends of a winding body that winds up the opening / closing body; a plate fixed to a fixed base of the bracket; a plate fastening member that penetrates the plate and fastens it to the mounting surface of the mounting base, The vertical length of the fixed base is longer than the distance between the pair of upper and lower mounting bases, A mounting structure for an opening and closing device, characterized in that the fixed base overlaps the mounting surface.

9. 9. The mounting structure for an opening and closing device according to claim 8, wherein at least an upper end side in a vertical length direction of the fixed base that overlaps with the mounting surface is fastened and fixed by a bracket penetrating fastening member.

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