Switchgear installation method

Abstract

To efficiently reinforce a winding shaft support structure.SOLUTION: In a method to install a switchgear which includes a support bracket 32 that supports, at both ends, a winding shaft 31 that winds up a switch body 10, a connecting member 33 that connects the support brackets 32 at both ends, a support frame 34a that is connected to the connecting member 33 and connected to an immovable part on the body side above the winding shaft 31, and a reinforcing member 34b that has one end connected to the support frame 34a and the other end connected to an immovable part on the body side above the support frame 34a, the support frame 34a and the reinforcing member 34b are integrated to form a reinforcing support unit 34, and then the reinforcing support unit 34 is connected to the connecting member 33 and the immovable part on the body side.SELECTED DRAWING: Figure 7

Description

[Technical Field]

[0001] The present invention relates to an opening and closing device installation method in which an opening and closing device that performs opening and closing operations by winding and unwinding an opening and closing body around a winding shaft is connected to a stationary part on a building frame side. [Background technology]

[0002] Conventionally, this type of invention, as described in Patent Document 1, includes an opening / closing device that includes an opening / closing body that opens and closes in the vertical direction, a winding shaft that winds and unwinds the opening / closing body on the upper side, a support bracket that supports the winding shaft on both sides, and a connecting member that connects these support brackets. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Publication No. 2023-031930 Summary of the Invention [Problem to be solved by the invention]

[0004] However, according to the above-mentioned conventional technology, if the vertical dimensions of the opening / closing body increase depending on the height of the opening to be opened or closed, the weight of the winding shaft that winds up the opening / closing body increases, and there is a risk that the strength of the winding shaft support structure, such as the support bracket and the connecting member, will be insufficient. Therefore, it is conceivable to reinforce the winding shaft support structure at the installation site of the opening and closing device, but some ingenuity is required to carry out the reinforcement work efficiently. [Means for solving the problem]

[0005] In view of the above problems, one aspect of the present invention is provided with the following configuration. An installation method for an opening and closing device comprising: a support bracket that supports, at both ends, a winding shaft that winds up the opening and closing body; a connecting member that connects these support brackets at both ends; a support frame that is connected to the connecting member and connected to an immovable part on the body side above the winding shaft; and a reinforcing member that has one end connected to the support frame and the other end connected to an immovable part on the body side above the support frame, wherein the support frame and the reinforcing member are integrated to form a reinforcing support unit, and then the reinforcing support unit is connected to the connecting member and the immovable part on the body side. [Effects of the Invention]

[0006] Since the present invention is configured as described above, the reinforcement work for the winding shaft support structure can be carried out efficiently. [Brief explanation of the drawings]

[0007] [Figure 1] 1 is a front view showing an example of an opening and closing device according to the present invention. [Figure 2] FIG. 2 is a cross-sectional view taken along the line (II)-(II) in FIG. [Figure 3] FIG. 2 is a front view showing an example of a supporting base. [Figure 4] FIG. 10 is a perspective view showing an example of a reinforcing support unit. [Figure 5] FIG. [Figure 6] FIG. 2 is a perspective view showing the mounting structure of the lintel adjustment member. [Figure 7] 3 is a view showing a state in which a reinforcing support unit is attached at the same cross-sectional position as in FIG. 2. FIG. [Figure 8] FIG. 3 is a view showing the state in which the lintel adjusting member is attached at the same cross-sectional position as in FIG. 2. [Figure 9] FIG. 4 is a longitudinal sectional view of a main part showing another example of a switching device according to the present invention. [Figure 10] FIG. 10 is a longitudinal sectional view of a main part showing another example of a switching device according to the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0008] Next, an embodiment of the present invention will be described in detail with reference to the drawings. In the following description, the "view direction" refers to the depth direction and front direction when the opening / closing body 10 is viewed from the front, and is the same direction as the thickness direction of the opening / closing body 10.

[0009] First Embodiment 1 and 2 show an example of an opening and closing device according to the present invention. The opening and closing device 1 comprises an opening and closing body 10 that performs a closing operation downwards to separate a space, a guide rail 20 that surrounds the widthwise end of the opening and closing body 10 and guides it in the vertical direction, a storage section 30 that extends and stores the opening and closing body 10 on its upper side, a lintel 40 through which the opening and closing body 10 is inserted on the closing direction side of the storage section 30, and a lintel adjustment member 50 that adjusts the position of the lintel 40 in the prospective direction (left and right direction according to Figure 2).

[0010] This opening and closing device 1 is fixed to a frame X of a building or the like. According to one example of the present embodiment, the skeleton X is a large building made primarily of wood. The opening and closing device 1 has a storage section 30 installed on a wall section x1 above an opening section A of the skeleton X via a support base 60 so as to open and close the opening section A.

[0011] The opening / closing body 10 is made up of a plurality of slats connected together so as to be able to rotate between the top and bottom, and is formed by bending a horizontally elongated, generally rectangular metal plate. This opening / closing body 10 is sometimes called a slat shutter curtain. Other examples of this opening / closing body 10 include a form made of a flexible sheet, a form made of multiple panels, a form in which multiple pipes are arranged at intervals above and below, and a form made of an appropriate combination of slats, flexible sheets, panels, pipes, etc.

[0012] The guide rails 20 are fixed to the wall surfaces on both sides of the opening A in the body X. Each guide rail 20 has a generally concave cross section that surrounds the widthwise end of the opening / closing body 10 and is continuous in the up-down direction.

[0013] The storage section 30 is equipped with a winding shaft 31 that pays out and winds up the opening-closing body 10, support brackets 32, 32 that support the winding shaft 31 at both ends, a connecting member 33 that receives and connects these end support brackets 32, 32 at the lower side, a reinforcing support unit 34 that reinforces and supports the connecting member 33 and is attached to the support base 60, which is an immovable part on the main body side, a winding shaft case 35 that covers the winding shaft 31 and the opening-closing body 10 wound around the winding shaft 31, and an opening-closing machine 36 that drives and rotates the winding shaft 31 (see Figures 1 and 2).

[0014] The winding shaft 31 is formed in a long cylindrical shape spanning the width direction of the opening / closing body, and is supported so as to be freely rotatable. This winding shaft 31 may be configured in such a way that the winding body is rotatably supported on the outer periphery of a non-rotatable fixed shaft via a bearing, or in such a way that the shaft portion integral with the winding body is rotatably supported on the support bracket 32 ​​via a bearing.

[0015] Two support brackets 32 are provided at intervals in the width direction so as to be positioned on both sides of the winding shaft 31 . Each of the shaft support brackets 32 is formed in a generally plate-like shape that is perpendicular to the winding shaft 31, and its rear end portion is fixed to the surface of the support base 60 by screwing, fitting, or the like. Each of the shaft support brackets 32 protrudes forward (leftward in FIG. 2) from the support base 60 and supports the end of the winding shaft 31 in the axial direction.

[0016] The connecting member 33 is a long metal member that straddles the left and right journal brackets 32, 32. The connecting member 33 in the illustrated example is formed in the shape of a lip channel steel, and its opening faces upward and contacts the lower ends of the left and right journal brackets 32, 32.

[0017] A plurality of reinforcing support units 34 (three in the example of FIG. 1) are provided at intervals in the axial direction of the winding shaft 31. Each reinforcing support unit 34 is formed by welding together a support frame 34a that surrounds the winding shaft 31 in a concave shape from the front side and whose lower side is connected to the connecting member 33, a reinforcing member 34b that is integrally formed on the upper side of the support frame 34a and then extended, and a connecting member 34c that connects the support frame 34a and the reinforcing member 34b at the rear immovable part of the main body.

[0018] The welding work for integrating the support frame 34a, the reinforcing members 34b, and the connecting members 34c is performed before the switchgear 1 is installed on the skeleton X, for example, during the manufacturing process at a factory where the switchgear 1 is manufactured.

[0019] The support frame 34a has a lower piece 34a1 connected to the connecting member 33 below the winding shaft 31 and extending toward the front, a front piece 34a2 connected to the lower piece 34a1 on the front side of the winding shaft 31 and extending upward, an upper piece 34a3 connected to the upper end of the front piece 34a2 and extending rearward above the winding shaft 31 and connected to the support base 60 via the connecting member 34c, reinforcing pieces 34a4, 34a4 that provide diagonal reinforcement between the lower piece 34a1 and the front piece 34a2, and between the front piece 34a2 and the upper piece 34a3, respectively, and a protruding piece 34a5 that protrudes downward from the lower piece 34a1, and is configured to have a horizontally concave shape when viewed from the side (see Figure 2).

[0020] One end of the reinforcing member 34b is connected to the front end of the upper piece 34a3, and the other end extends obliquely upward and rearward. This other end is connected to the support base 60 via a connecting member 34c.

[0021] The connecting member 34c extends in the vertical direction so as to connect the rear end portion of the upper piece 34a3 and the rear end portion of the reinforcing member 34b. According to the illustrated example, the connecting member 34c is formed by joining two angle-shaped members extending in the vertical direction (see FIG. 4). The connecting member 34c has a fastening piece 34c1 that is superimposed on and fastened to the surface of the support base 60.

[0022] The fastening piece portion 34c1 is provided with a plurality of fastening holes 34c11 for inserting fasteners (for example, screws, rivets, anchor members, etc.). A plurality of fastening holes 34c11 are provided in the vertical direction, and a plurality of fastening holes 34c11 are also provided in the lateral direction.

[0023] 4, the number of fastening holes 34c11 aligned in the width direction increases toward the bottom. That is, the fastening piece portion 34c1 has a greater number of fastening holes 34c11 in the lower portion to which the weight of the support frame 34a is directly applied than in the upper portion. The connecting member 34c is fastened to the protruding piece 61, which is the rear immovable portion on the body side, by fasteners inserted through the above-mentioned plurality of fastening holes 34c11.

[0024] The winding shaft case 35 is formed in an elongated shape with a generally U-shaped or arc-shaped vertical cross section that continues in the opening / closing width direction. The winding shaft case 35 is located radially inward of the reinforcing support unit 34 and radially outward of the opening / closing body 10 that is wound around the winding shaft 31. The lower end of the winding shaft case 35 fits into the upward opening of the connecting member 33, and the upper end is fastened to a bracket or the like that is integral with the pivot support bracket 32 ​​(see FIG. 2).

[0025] The opening / closing device 36 is composed of an electric motor, gears, etc. The opening / closing device 36 is supported by one of the support brackets 32 (the right side in FIG. 1), and its rotational force is transmitted to the winding shaft 31 by a chain, a sprocket, etc. (not shown).

[0026] The lintel 40 comprises an inner lintel 41 located on the indoor side and an outer lintel 42 spaced apart on the outdoor side from the inner lintel 41, and the opening / closing body 10 is inserted between the inner lintel 41 and the outer lintel 42.

[0027] The inner lintel 41 is a member that continues in the width direction along the indoor side surface of the opening / closing body 10. This inner lintel 41 is formed in a roughly crank-shaped vertical cross section, having a hanging piece 41a that is connected to the connecting member 33 and extends downward, a horizontal piece 41b that extends from the lower end of the hanging piece 41a so as to approach the surface of the opening / closing body 10, and an opening / closing body adjacent piece 41c that is close to the surface of the opening / closing body 10 and extends downward from the horizontal piece 41b (see Figure 2). Although the inner lintel 41 is an integral member in the illustrated example, it may be an integral member made by connecting a plurality of members.

[0028] The outer lintel 42 is a member that continues in the width direction along the outdoor surface of the opening / closing body 10. This outer lintel 42 is formed in a roughly crank-shaped vertical cross section, having a hanging piece 42a that is connected to the support base 60 and extends downward, a horizontal piece 42b that extends from the lower end of the hanging piece 42a so as to approach the surface of the opening / closing body 10, and an opening / closing body adjacent piece 42c that is extended downward from the horizontal piece 42b close to the surface of the opening / closing body 10. In the illustrated example, this outer lintel 42 is composed of two parts: a part having a hanging piece 42a and a horizontal piece 42b, and a part having a piece 42c adjacent to the opening / closing body; however, it is also possible to have it composed of a single part or three or more parts.

[0029] A plurality of lintel adjusting members 50 (three in the illustrated example) are provided to correspond to the plurality of reinforcing support units 34, respectively. Each lintel adjustment member 50 is arranged in a substantially horizontal position, with one end connected to a portion of the inner lintel 41 above the lower end (in the illustrated example, the horizontal piece 41b), and the other end connected to the reinforcing support unit 34, which is part of the storage section 30. This lintel adjustment member 50 adjusts the position of the inner lintel 41 in the projection direction.

[0030] The lintel adjustment member 50 is a mechanism capable of adjusting the length in the projection direction, and according to a preferred example shown in FIG. 2, is a turnbuckle. In more detail, the lintel adjustment member 50 comprises a central body 51, a bolt-shaped member 52 threaded onto one end of the body 51, and a bolt-shaped member 53 threaded onto the other end of the body 51 in a reverse-threaded manner, and is configured so that the overall length including the bolt-shaped members 52 and 53 on both sides can be changed by rotating the body (see Figure 6).

[0031] This lintel adjustment member 50 connects the tip side of one bolt-shaped member 52 to the horizontal piece portion 41b of the inner lintel 41, and the tip side of the other bolt-shaped member 53 to the protruding piece portion 34a5 on the lower end side of the storage section 30. 6, the tip of each bolt-shaped member 52 (or 53) is formed into a hook shape. The lintel adjusting member 50 is fastened to the horizontal piece 41b and the protruding piece 34a5 by fasteners (such as bolts or screws) inserted into the hook-shaped portions on both sides.

[0032] With the lintel adjustment member 50 configured as described above, by manually rotating the body 51 in one direction, the lower side of the inner lintel 41 can be pulled toward the indoor side, and by rotating the body 51 in the opposite direction, the deflection will return to its original state. Therefore, the gap S between the inner lintel 41 and the opening / closing body 10 can be adjusted by rotating the body 51 at each position in the width direction where the reinforcing support unit 34 is located.

[0033] The support base 60 is formed by connecting a plurality of long rigid members (square steel pipes in the illustrated example) and has a generally rectangular frame shape in front view that spans the entire width of the storage section 30 (see FIG. 3).

[0034] The support base 60 is provided with a plurality of (three in the illustrated example) protruding pieces 61 spaced apart in the width direction in correspondence with the plurality of reinforcing support units 34 described above. The connecting members 34c of the reinforcing support unit 34 are overlapped and fastened to the respective protruding pieces 61.

[0035] <Installation procedure for switchgear> Next, a procedure for installing the opening and closing device 1 on the skeleton X will be described. First, the support base 60 is fixed to a wall x1 (for example, a hanging wall) above the opening of the skeleton X. In the drawing, reference numeral 60a denotes a plurality of fasteners (for example, screws, bolts, anchor members, etc.) that fasten the support base 60 to the skeleton X.

[0036] The left and right support brackets 32, 32 are fixed to the support base 60 which is integral with the body X, and further, the winding shaft 31, the opening / closing body 10, the connecting member 33, the lintel 40, etc. are assembled. That is, in the configuration of the storage section 30, the parts other than the reinforcing support unit 34 are assembled first (see FIG. 7).

[0037] Next, a plurality of reinforcing support units 34 are arranged at predetermined intervals in the width direction (see FIG. 1). The lower and upper ends of each reinforcing support unit 34 are connected to the connecting member 33 and the support base 60 (the immovable portion on the main body side) (see FIG. 7).

[0038] More specifically, the rear end of the lower piece 34a1 is placed on the lower end surface of the connecting member 33 and is fastened to the connecting member 33 with fasteners such as screws or bolts (not shown). The connecting member 34c is fastened to the surface of the protruding piece 61 of the support base 60 by a fastener (not shown).

[0039] The work of fixing the support base 60, the support bracket 32, the reinforcing support unit 34, the connecting member 33, the lintel 40, etc. as described above is carried out by a fireless method using fasteners such as screws, bolts, and rivets without using welding.

[0040] After this, the lintel adjustment members 50 are attached to correspond to each reinforcing support unit 34 (see FIG. 8). Then, by rotating the body 51 of each lintel adjustment member 50, the gap S between the inner lintel 41 and the opening / closing body 10 is adjusted to be approximately constant across the width of the opening / closing body.

[0041] Therefore, according to the opening and closing device 1 and the installation method thereof having the above-described configuration, the work of reinforcing the support structure of the winding shaft 31 can be carried out quickly by a fireless construction method. Moreover, the gap S between the inner lintel 41 and the opening / closing body 10 can be prevented from varying across the width of the opening / closing body, improving the design of the lintel 40 portion.

[0042] <Second embodiment> Next, other embodiments will be described. The embodiments described below are partial modifications of the opening and closing device 1 described above, so the modifications will be mainly described in detail, and similar parts will be assigned the same reference numerals and detailed descriptions will be omitted.

[0043] In the opening and closing device 2 shown in FIG. 9, the reinforcing support unit 34 in the opening and closing device 1 is replaced with a reinforcing support unit 34'. Furthermore, in this opening and closing device 2, the support base 60 in the opening and closing device 1 is omitted, and the connection member 34c is directly fastened to the wall portion x1 by fasteners (for example, screws, bolts, etc.) not shown.

[0044] The reinforcing support unit 34' is obtained by replacing the reinforcing member 34b in the reinforcing support unit 34 with a reinforcing member 34b', and connecting this reinforcing member 34b' to the top part x2 of the frame X (frame-side immovable part) via a connecting member 34d.

[0045] The reinforcing member 34b' is a member that extends in the vertical direction, and in the illustrated example, is a metal angle member that extends in the vertical direction. The lower end of this reinforcing member 34b' is welded to a portion of the support frame 34a (specifically, the upper piece 34a3) that protrudes from the wall portion x1, and the upper end of the reinforcing member 34b' is welded to the connecting member 34d.

[0046] The connecting member 34d is a metal angle member arranged along the top portion x2. The connecting member 34d is fastened to the top portion x2 with fasteners (for example, screws, bolts, etc.).

[0047] Therefore, according to the opening / closing device 2 and its installation method shown in Figure 9, it is possible to obtain the same effects as the opening / closing device 1 described above, and also to prevent the part of the storage section 30 protruding from the wall section x1 from bending downward due to its own weight.

[0048] <Third embodiment> The opening and closing device 3 shown in FIG. 10 is the opening and closing device 1 described above, except that the support frame 34a is replaced with a support frame 34a' and the lintel adjusting member 50 is replaced with a lintel adjusting member 70.

[0049] The support frame 34a' is the same as the support frame 34a except that the protruding pieces 34a5 are omitted.

[0050] The lintel adjustment member 70 is a rod-shaped member made of metal, and one end thereof is welded to the hanging piece portion 41 a of the inner lintel 41 . The other end of this lintel adjustment member 70 is welded to the lower piece 34a1 of the support frame 34a' that constitutes the storage section 30 so as to adjust the position of the lower piece 34a1 in the front-to-rear direction (left-to-right direction in FIG. 10). In the position adjustment, the gap S between the inner lintel 41 and the opening / closing body 10 is adjusted so as to be substantially constant across the width of the opening / closing body.

[0051] Therefore, according to the opening and closing device 3 and its installation method shown in Figure 10, it is possible to obtain substantially the same effects as the opening and closing device 1 described above, and in addition, the lintel 40 can be sturdily reinforced by multiple lintel adjustment members 70.

[0052] <Other variations> According to the above embodiment, multiple reinforcing support units 34 are provided in the width direction (see Figure 1), but as another example, it is also possible to provide a single reinforcing support unit 34 near the center of the width direction of the storage section 30.

[0053] According to the above embodiment, the lintel adjustment member 50 or 70 is provided for each of the multiple reinforcing support units 34, but as another example, it is also possible to provide the lintel adjustment member 50 or 70 for only some of the reinforcing support units 34.

[0054] According to the above embodiment, one end of the lintel adjustment member 50 or 70 is connected to the lintel 40 and the other end is connected to the support frame 34a, but as another example, it is also possible to connect the other end of the lintel adjustment member 50 or 70 to a part other than the reinforcing support unit 34 in the storage section 30 (for example, a connecting member 33, etc.).

[0055] Furthermore, the present invention is not limited to the specific configurations described above, and can be modified as appropriate within the scope of the present invention.

[0056] <Summary> As described above, the above embodiments disclose the following inventions. (1) An installation method for an opening and closing device comprising: support brackets that support at both ends a winding shaft that winds up an opening and closing body; connecting members that connect these support brackets at both ends; a support frame that is connected to the connecting members and connected to an immovable part on the body side above the winding shaft; and a reinforcing member that has one end connected to the support frame and the other end connected to an immovable part on the body side above the support frame, wherein the support frame and the reinforcing member are integrated to form a reinforcing support unit, and then the reinforcing support unit is connected to the connecting members and the immovable part on the body side (see Figures 1 to 10). (2) The opening and closing device installation method according to (1), characterized in that a fireless construction method is used when connecting the support frame to the connecting member and connecting the reinforcing member to the immovable portion on the body side. (3) The opening and closing device installation method described in (1) or (2) is characterized in that the reinforcing support unit is integrally provided with a connecting member that connects the support frame and the reinforcing member at the rear side, and the connecting member is connected to an immovable part on the rear body side (see Figures 2, 3, 7, 8 and 10). (4) The opening and closing device installation method described in (3) (see Figure 4) is characterized in that the connecting member is fastened to the immovable part of the body at multiple points in the vertical and horizontal directions, and the number of fastening points in the horizontal direction increases as it goes downward. (5) The opening and closing device installation method according to (1) or (2) (see FIG. 9), wherein the reinforcing member is connected to an upper immovable portion on the body side. (6) The opening and closing device installation method according to any one of (1) to (5) is characterized in that the support frame is formed in a concave shape surrounding the winding shaft from the front side, the lower side of this support frame is connected to the connecting member, and the reinforcing member is provided on the upper side of the support frame (see Figures 2, 3, 7 to 10). [Explanation of symbols]

[0057] 1, 2, 3: Switchgear 10: Opening and closing body 20: Guide rail 30: Storage area 31: Winding shaft 32: Axial support bracket 33: Connecting member 34,34': Reinforcement support unit 34a: Support frame 34b, 34b': Reinforcing member 40: Lintel 50,70: Lintel adjustment member A: Opening X: skeleton

Claims

1. An installation method for an opening and closing device including: a support bracket that supports, at both ends, a winding shaft that winds up an opening and closing body; a connecting member that connects the support brackets at both ends; a support frame that is connected to the connecting member and is connected to an immovable part on the body side above the winding shaft; and a reinforcing member that has one end connected to the support frame and the other end connected to an immovable part on the body side above the support frame, A method for installing an opening and closing device, characterized in that the support frame and the reinforcing member are integrated to form a reinforcing support unit, and then the reinforcing support unit is connected to the connecting member and the immovable portion on the body side.

2. 2. The switchgear installation method according to claim 1, wherein a fireless construction method is used when connecting the support frame to the connecting member and connecting the reinforcing member to the immovable portion on the skeleton side.

3. The opening and closing device installation method according to claim 1, characterized in that the reinforcing support unit is integrally provided with a connecting member that connects the support frame and the reinforcing member at the rear side, and the connecting member is connected to an immovable portion on the rear body side.

4. 4. The opening and closing device installation method according to claim 3, wherein the connecting member is fastened to the immovable portion of the main body at a plurality of locations in the vertical and horizontal directions, and the number of fastening locations in the horizontal direction increases as the location goes downward.

5. 2. The switchgear installation method according to claim 1, wherein the reinforcing member is connected to an upper immovable portion of the frame.

6. The opening / closing device installation method according to any one of claims 1 to 5, characterized in that the support frame is formed in a concave shape surrounding the winding shaft from the front side, a lower side of this support frame is connected to the connecting member, and the reinforcing member is provided on an upper side of the support frame.

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