Switchgear assembly method

Abstract

To provide a safe and efficient method for assembling an opening / closing body.SOLUTION: A method for assembling an opening / closing body for use in an opening / closing device provided with the opening / closing body constituted by connecting a predetermined number of panels, the method includes: a first step of securing an installation space 9 for a panel 10C to be positioned under an upper panel between a lower end of the upper panel 10A and a lower surface 2e of an opening 2, and forming a connection panel 101 by connecting a lower end side of the upper panel 10A and an upper end side of the panel 10C installed in the installation space; a second step of securing the installation space 9 for the panel 10C between the lower end of a connection panel 101 and the lower surface 2e of the opening 2 and forming a connection panel 102 connecting the lower end side of the connection panel 101 and the upper end side of the panel 10C installed in the installation space 9; and a last step of repeating the second step to assemble the opening / closing body in such a manner of connecting a predetermined number of the panels to be arranged along the vertical direction of the opening 2.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention provides Method for assembling a switching device equipped with a switching body Regarding. [Background technology]

[0002] BACKGROUND ART Opening and closing devices called over-sliding doors or overhead doors are known (see Patent Document 1, etc.). The opening and closing device is set to a closed state in which the opening and closing body that opens and closes the opening of the structure extends in the vertical direction to close the opening, and an open state in which the opening body extends along the ceiling on the ceiling side of one of the areas separated by the opening to open the opening. The opening / closing body described above is configured by a plurality of panels arranged in a line along the movement direction of the opening / closing body, and adjacent panels are connected to each other via hinges. Conventionally, the method of assembling the opening / closing body of the above-mentioned opening / closing device involves first placing the lowest panel and then stacking and connecting the panels on top of it in order. A conventional assembly procedure (assembly method) for an opening / closing body large enough to close an opening, for example, constructed by connecting five panels vertically, will be described with reference to FIG. 7. First, as shown in Figure 7(a), the lower panel 10B, which will be positioned lowest, is installed on the underside 2e of the opening 2, and then the middle panel 10C, which will be positioned second from the bottom, is connected to the top of the lower panel 10B using hinges 31 and 32 as connecting means. Next, as shown in FIG. 7(b), the intermediate panel 10C to be positioned third from the bottom is connected to the top of the intermediate panel 10C to be positioned second from the bottom using hinges 31 and 32. Furthermore, as shown in FIG. 7(c), the fourth intermediate panel 10C from the bottom is connected to the top of the third intermediate panel 10C from the bottom using hinges 31 and 32. Then, as shown in Figure 7(d), the upper panel 10A, which will be positioned highest, is connected to the middle panel 10C, which will be positioned fourth from the bottom, using hinges 31 and 32 to form an opening and closing body. That is, in Figure 7, the opening and closing body is assembled by stacking and connecting the panels from bottom to top in the order of the numbers inside the circles attached to panels 10A, 10C, 10C, 10C, and 10B. In this case, when connecting the upper panel, which will be positioned out of the reach of the worker M, the work will be carried out at a high altitude using a high altitude work vehicle D or the like. In FIG. 7, reference numeral 41 denotes a vertical guide portion of the guide means for guiding the opening / closing body. The opening / closing body assembled in this manner is connected to an opening / closing mechanism 5, as shown in Fig. 1, to constitute an opening / closing device 1 that opens and closes the opening 2. In the closed state, the opening / closing body 3 of the opening / closing device 1 is set in a state in which one end (upper end) 3t of the opening / closing body 3 extending in the vertical direction is positioned above the upper end 2t of the opening 2, and the other end (lower end) 3u of the opening / closing body 3 is in contact with the lower surface 2e of the opening 2, thereby closing the opening 2. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Publication No. 2022-10137 Summary of the Invention [Problem to be solved by the invention]

[0004] However, the above-mentioned conventional Switchgear assembly method In this case, when connecting the upper panels, which will be located out of the reach of worker M, the work must be done at a high altitude using a high-altitude work vehicle D or the like, which reduces work efficiency by moving the high-altitude work vehicle D or the like up and down and left and right, and working at a high altitude is inevitably prone to danger, posing safety issues.

[0005] The present invention aims to solve the above problems by providing a safe and efficient Switchgear assembly method This provides: [Means for solving the problem]

[0006] The present invention Claim 1 relating to Switchgear assembly method The system is provided with an opening / closing body configured by connecting a predetermined number of panels so as to be aligned along the vertical direction of an opening formed in a structure. Switchgear assembly method Between the lower end of the upper panel to be positioned at the top of the opening and closing body and the lower surface of the opening, By lifting the upper panel with a lifting means, a first step of securing an installation space for a panel to be positioned below the upper panel and forming a connecting panel that connects the lower end side of the upper panel and the upper end side of the panel installed in the installation space; and a second step of forming a connecting panel between the lower end of the connecting panel and the lower surface of the opening. By lifting the connecting panel with the lifting means, a second step of securing an installation space for the panels and forming a connecting panel by connecting the lower end side of the connecting panel to the upper end side of the panel installed in the installation space; and repeating the second step to finally form a connecting panel by connecting a number of panels that is one less than the predetermined number, between the lower end of the connecting panel and the underside of the opening. By lifting the connecting panel with the lifting means, By securing an installation space for the lower panel that will be positioned at the bottom of the opening / closing body and connecting the lower end side of the connecting panel to the upper end side of the lower panel installed in that installation space, an opening / closing body is assembled in which a predetermined number of panels are connected so as to be lined up along the vertical direction of the opening. and an opening / closing device assembling step of assembling the opening / closing device that opens and closes the opening by connecting the opening / closing body assembled in the opening / closing body assembling step to an opening / closing mechanism disposed above the opening with a connecting member, wherein in the opening / closing device assembling step, one end of the connecting member is fastened to the opening / closing mechanism and the other end of the connecting member is fastened to a lower end of the assembled opening / closing body, and the opening / closing mechanism is configured to take up the connecting member when the opening / closing body performs an opening operation and to pay out the connecting member when the opening / closing body performs a closing operation. It is characterized by the fact that Also, A method for assembling a switchgear according to a second aspect of the present invention is a method for assembling a switchgear having a switchgear configured by connecting a predetermined number of panels to be lined up in the up-down direction of an opening formed in a structure, the method comprising the steps of: a first step of lifting and supporting an upper panel with a support means between a lower end of an upper panel to be positioned at the top of the switchgear and a lower surface of the opening, thereby securing an installation space for a panel to be positioned below the upper panel, and forming a connecting panel connecting the lower end side of the upper panel to the upper end side of a panel installed in the installation space; a second step of lifting and supporting the connecting panel with the support means between the lower end of the connecting panel and the lower surface of the opening, thereby securing an installation space for the panel, and forming a connecting panel connecting the lower end side of the connecting panel to the upper end side of the panel installed in the installation space; and repeating the second step to finally form a connecting panel between the lower end of a connecting panel formed by connecting a number of panels that is one less than the predetermined number and the lower surface of the opening. The method includes an opening / closing body assembly step in which, by lifting and supporting the connecting panel with the support means, installation space is secured for the lower panel that will be positioned at the bottom of the opening / closing body, and the lower end side of the connecting panel is connected to the upper end side of the lower panel installed in the installation space, thereby assembling an opening / closing body in which a predetermined number of panels are connected so that they are lined up in the vertical direction of the opening; and an opening / closing device assembly step in which, by connecting the opening / closing body assembled in the opening / closing body assembly step to an opening / closing mechanism arranged above the opening with a connecting member, an opening / closing device that opens and closes the opening is assembled, wherein, in the opening / closing device assembly step, one end of the connecting member is fastened to the opening / closing mechanism and the other end of the connecting member is fastened to the lower end of the assembled opening / closing body, thereby assembling the opening / closing device, and the opening / closing mechanism is configured to wind up the connecting member when the opening / closing body performs an opening operation and to unwind the connecting member when the opening / closing body performs a closing operation. According to the present invention, the panel connection work can be performed by workers on the ground, which makes it safe and efficient. Switchgear assembly method This will enable us to achieve the following. [Brief explanation of the drawings]

[0007] [Figure 1] 1 is a perspective view of the overall configuration of an opening / closing device when an opening / closing body that is the subject of the present invention is in a closed state; [Figure 2]FIG. 2 is a front view of the opening / closing body in the closed state, seen from one area side. [Figure 3] 1A to 1C are diagrams showing the assembly procedure (assembly method) of the opening and closing body (first embodiment). [Figure 4] FIG. 2 is a perspective view showing an example of an upper panel (Embodiment 1). [Figure 5] FIG. 10 is a diagram showing an example of a hanging portion provided on an upper panel (Embodiment 1). [Figure 6] 10A to 10C are diagrams showing the assembly procedure (assembly method) of the opening and closing body (Embodiment 2). [Figure 7] A diagram showing the assembly procedure (assembly method) for the opening and closing body (conventional). DETAILED DESCRIPTION OF THE INVENTION

[0008] The present invention Switchgear assembly method Before explaining the present invention, first, referring to FIGS. Switchgear that is the subject of the switchgear assembly method This section provides an overview of the system. The opening and closing device 1 is, for example, an opening and closing body 3 that opens and closes an opening 2 (shown by a dotted line in Figure 1) formed in a structure, a guide means 4 that guides the movement of the opening and closing body 3, and an opening and closing mechanism 5 for the opening and closing body 3, and when the opening and closing body 3 that opens and closes the opening 2 opens the opening 2, the opening and closing body 3 is positioned (stored) along the ceiling on the ceiling side of one area 6 separated by the opening 2, and is an opening and closing device also known as an over-sliding door or overhead door.

[0009] The opening 2 is, for example, a rectangular opening (the rectangular opening 2 shown by the dashed line in Figure 1) that is opened in a body 7 such as an exterior wall that separates the inside and outside of a structure such as a house, building, warehouse, or factory, or an interior wall that separates the internal space inside the structure, and is provided so as to extend in the vertical and horizontal directions as a space that connects the inside and outside. Moreover, one area 6 across the opening 2 is the interior of a structure or the interior of a structure, such as a residential or building parking lot, a factory, or a warehouse. The other area across the opening 2 is the outside of the structure or the exterior of the structure, such as the outside of a parking lot of a house or building, the outside of a factory, or the outside of a warehouse.

[0010] In the opening and closing device 1, the opening and closing body 3 is set to a closed state in which it extends in the vertical direction to close the opening 2, and an open state in which it extends along the ceiling near the opening 2 in one area 6 to open the opening 2. 1, in the closed state, one end (upper end) 3t of the opening / closing body 3 extending in the vertical direction is positioned above the upper end 2t of the opening 2, and the other end (lower end) 3u of the opening / closing body 3 is in contact with the lower surface 2e of the opening 2, such as the floor or the ground, so that the opening / closing body 3 closes the opening 2. The lower surface 2e of the opening 2 is the ground surface, such as the floor or the ground. Also, although not shown, in the open state, one end 3t of the opening / closing body 3 is positioned on the ceiling side of one of the areas 6 separated by the opening 2, away from the opening 2, and the other end 3u of the opening / closing body 3 is positioned above the opening 2, so that the opening / closing body 3 extends along the ceiling of one of the areas 6 from above the opening 2 in a direction away from the opening 2, and is set in a state in which the opening 2 is open.

[0011] In addition, when in the open state, the opening / closing body 3 of the opening / closing device 1 is of a type that extends horizontally from the other end 3u to one end 3t on the ceiling side of one area 6, or of a type that extends at an upward incline from the other end 3u to one end 3t.

[0012] As shown in Figures 1 and 2, the opening / closing body 3 comprises a panel structure 10 formed by a plurality of panels 10A, 10C, 10C..., 10B arranged in a line along the movement direction (opening / closing direction (up and down)) S of the opening / closing body 3, reinforcing bodies (upper reinforcing bodies 20, lower reinforcing bodies 21, lower reinforcing bodies 22, central reinforcing bodies 23, etc. described below) protruding from the surface of one region 6 side of each panel 10A, 10C, 10C..., 10B and extending in the left-right direction of the panel (the direction along the long side edge of the panel (the width direction of the opening 2)) W and to one region 6, a reinforcing body collapse prevention means 60 that connects the surface of the panel on the one region 6 side to the reinforcing body to prevent the reinforcing body from collapsing, and guide rollers 30 arranged to protrude outward from the left and right side edges of each panel.

[0013] The panel structure 10 that forms the opening and closing surface of the opening and closing body 3 is composed of, for example, an upper panel 10A located at the uppermost end side of the opening and closing body 3 in the closed state, a lower panel 10B located at the lowermost end side of the opening and closing body 3 in the closed state, and a plurality of intermediate panels 10C, 10C... provided between the upper panel 10A and the lower panel 10B.

[0014] As shown in FIG. 2, each of the panels 10A, 10B, and 10C includes a panel body 11, a frame 12 surrounding the panel body 11 on all four sides, and a frame reinforcing member 13.

[0015] The panel body 11 is formed in a rectangular shape that is long in the left-right direction, with long sides extending along the left-right direction (width direction) of the opening 2 and corresponding to the width dimension of the opening 2, and short sides extending along the up-down direction (height direction) of the opening 2. The panel body 11 is formed of an uneven panel having a cross-sectional shape that is, for example, uneven in the vertical direction. By forming the panel body 11 from an uneven panel with high strength, the wind pressure resistance of each of the panels 10A, 10B, and 10C can be improved.

[0016] As shown in Figure 2, the frame 12 is composed of an upper frame 15 provided along the upper long edge which is one end edge of the panel body 11, a lower frame 16 provided along the lower long edge which is the other end edge of the panel body 11, and left and right vertical frames 17, 18 provided respectively along the left and right short edges of the panel body 11, and is a frame body that surrounds all four sides of the long rectangular panel body 11 that is long in the left-right direction. Therefore, each panel 10A, 10B, 10C is formed into a long rectangular shape that is long in the left-right direction (width direction) W of the opening 2, with a long side extending along the left-right direction (width direction) W of the opening 2 and corresponding to the width dimension of the opening 2, and a short side extending along the up-down direction (height direction) of the opening 2.

[0017] The frame reinforcement member 13 is a reinforcement member such as a reinforcing bar that connects the upper frame 15 and the lower frame 16 on the side of the panel main body 11 facing one of the regions 6, and multiple members are provided at predetermined intervals along the longitudinal direction of the panel main body 11, i.e., the left-right direction (width direction) W of the opening 2.

[0018] The upper panel 10A has a reinforcing body on the surface on one side of the region 6, on one edge side (upper edge side) along the movement direction S of the opening / closing body 3, and on the other edge side (lower edge side) along the movement direction S of the opening / closing body 3. For example, the upper panel 10A is provided with an upper reinforcement 20 that is arranged to extend from a surface located on one side of the region 6 on the upper frame 15 of the upper panel 10A in the left-right direction W of the upper panel 10A and toward the one region 6, and has an engaging portion at its extended end extending toward the one region 6 that engages with the engaged portion of the reinforcement collapse prevention means 60, and a lower reinforcement 21 that is arranged to extend from a surface located on one side of the region 6 on the lower frame 16 of the upper panel 10A in the left-right direction W of the upper panel 10A and toward the one region 6, and has an engaging portion at its extended end extending toward the one region 6 that engages with the engaged portion of the reinforcement collapse prevention means 60.

[0019] The intermediate panel 10C has a reinforcing member on the other edge side (lower edge side) along the movement direction S of the opening / closing body 3. For example, the intermediate panel 10C is provided with a lower reinforcement 21 that extends from a surface located on one side of the region 6 of the lower frame 16 of the frame 12 that surrounds the panel main body 11 of the intermediate panel 10C in the left-right direction W of the intermediate panel 10C and toward the one side of the region 6, and has an engaging portion on the extended end side extending toward the one side that engages with the engaged portion of the reinforcement collapse prevention means 60.

[0020] The lower panel 10B is provided with reinforcing members on the other edge side (lower edge side) along the movement direction S of the opening / closing body 3 and on the center side between one end and the other end along the movement direction S of the opening / closing body 3. For example, the lower panel 10B includes a lower reinforcement body 22 extending from a surface located on the side of one region 6 of the lower frame 16 of the frame 12 surrounding the panel main body 11 of the lower panel 10B in the left-right direction W of the lower panel 10B and toward one region 6, and a central reinforcement body 23 attached to each frame reinforcement member 13 and extending in the left-right direction W of the lower panel 10B and toward one region 6.

[0021] As shown in FIG. 2, a drain seal 25 is provided on the lower surface of the lower frame 16 of the lower panel 10B. In other words, the lower end of the lower panel 10B, which is the other end 3u of the opening / closing body 3, is composed of a drain seal 25 made of hollow rubber or the like provided on the underside of the lower frame 16, and when the opening / closing body 3 is in a closed state, the drain seal 25 comes into close contact with the lower end of the opening on the floor, ground, etc., thereby maintaining the watertightness and airtightness between the other end 3u of the opening / closing body 3 and the underside 2e of the opening 2.

[0022] The means 60 for preventing the reinforcement body from falling over is configured so that the connecting portion provided on one end side is connected to the stile reinforcing member 13 and the engaged portion provided on the other end side is connected in an engaged state with the engaging portion of the reinforcement body, thereby connecting the reinforcement body to the surface on one side of the panel in region 6 and preventing the reinforcement body from falling over.

[0023] In other words, since the reinforcement body and the surface of one of the regions 6 of the panel are connected by the reinforcement body collapse prevention means 60, it is possible to prevent the upper reinforcement body 20 from collapsing toward the opening 2 with the boundary with the upper frame 15 as the center of rotation, and the lower reinforcement body 21 from collapsing toward the opening 2 with the boundary with the lower frame 16 as the center of rotation, thereby preventing deformation of the panel due to the collapse of the reinforcement body. The same reinforcement body collapse prevention means 60 is used in different directions when connecting the upper reinforcement body 20 to the panel and when connecting the lower reinforcement body 21 to the panel.

[0024] The panels 10A, 10B, 10C are arranged side by side along the movement direction S of the opening / closing body 3, and adjacent panels are connected to each other via hinges 31, 32. As shown in Figure 2, adjacent panels along the movement direction S of the opening / closing body 3 are connected at their left and right end sides by hinges 32, 32, and further, the left and right end parts are connected at multiple locations spaced apart along the left and right direction by hinges 31, 31..., so that the angle formed between the surface of one area 6 of one panel and the surface of one area 6 of the other panel adjacent to each other along the movement direction S of the opening / closing body 3 can be 180 degrees or less.

[0025] That is, the panel structure 10 is arranged in a line along the movement direction of the opening / closing body 3, and the long side edge of one adjacent panel is connected to the long side edge of the other adjacent panel via hinges 31, 32 as connecting means, and the plate surfaces of the adjacent panels are configured to be positioned on the same plane and to intersect with each other.

[0026] The guide rollers 30 are provided at both ends in the left-right direction (longitudinal direction) W of each of the panels 10A, 10B, and 10C. The guide roller 30 comprises a rotating shaft portion rotatably attached to a bearing portion provided at the end of the panel in the left-right direction W, and a roller portion provided at the tip side of the rotating shaft portion protruding outward from the longitudinal edge of the panel and configured to be able to roll on the guide surface within the recess of the guide means 4. Therefore, the opening / closing body 3 can move in the movement direction S of the opening / closing body 3 by the guide rollers 30 provided on each panel being guided in the movement direction S by the guide means 4.

[0027] The guide means 4 are installed along the left and right side edges of the opening 2, respectively. The guide means 4 is a rail formed with a U-shaped cross section, and as shown in Figure 1, is composed of a vertical guide portion 41 installed on the side of the opening 2, an upper guide portion 43 provided on the ceiling side of one of the areas 6 so as to extend from the upper end side of the opening 2 in a direction away from the opening 2, and an arc-shaped guide portion 42 connecting the upper end of the vertical guide portion 41 and the opening side end of the upper guide portion 43. An opening / closing body 3 is provided between a pair of guide means 4, 4 installed on the left and right edges of the opening 2 so as to be movable in the opening or closing direction, and the opening / closing body 3 opens or closes the opening 2 by moving between the vertical guide portion 41 and the upper guide portion 43.

[0028] As shown in Figure 1, the opening / closing mechanism 5 includes, for example, a rotating shaft 51 arranged above the opening 2 across the width of the opening 2, a pair of winding drums 52, 52 fixed to both ends of the rotating shaft 51, a connecting member 53 such as a metal wire that has one end connected to the winding drum 52 and the other end connected to the opening / closing body 3 and is wound onto or unwound from the winding drum 52 as the rotating shaft 51 rotates, and a biasing member 54 that biases the rotating shaft 51 in the direction in which the winding drum 52 winds up the connecting member 53, i.e., in the direction in which the opening / closing body 3 is opened.

[0029] The rotating shaft 51 is a hollow or solid shaft body having a length approximately equal to the distance between the pair of guide means 4, 4, and is disposed above the upper end of the opening 2, extending in the width direction of the opening 2. The rotating shaft 51 is rotatably supported by a plurality of bearing brackets 56, 56... attached to the body 7.

[0030] The winding drum 52 is a bobbin-shaped (cylindrical) member that enables winding and unwinding of the connecting member 53, and is fixed to both ends of the rotating shaft 51 so that the central axis of the winding drum 52 and the central axis of the rotating shaft 51 are concentric. The winding drum 52 is a member that rotates together with the rotary shaft 51 to wind the connecting member 53 onto its outer circumferential surface and to unwind the connecting member 53 from its outer circumferential surface. More specifically, the winding drum 52 winds the connecting member 53 when the opening-closing body 3 performs an opening operation, and unwinds the connecting member 53 when the opening-closing body 3 performs a closing operation.

[0031] One end of the connecting member 53 is fastened to the outer peripheral surface of the winding drum 52, and the other end is fastened to the lower end of the opening / closing body 3. The connecting member 53 may be any member that can be wound onto the winding drum 52, and may be, for example, a metal chain or a substantially string- or belt-shaped member made of a material other than metal.

[0032] For example, a torsion spring is used as the biasing member 54. After the rotating shaft 51 is passed through the hollow cylindrical portion of the torsion spring, one end of the torsion spring is fixed to the outer circumferential surface of the rotating shaft 51, and the other end of the torsion spring is fixed to the body 7. The torsion spring is provided so as to bias the rotary shaft 51 in a direction in which the connecting member 53 is wound up. In other words, the biasing member 54 has the function of assisting the operator in opening the opening / closing body 3, and also has the function of keeping the opening / closing body 3 positioned on the upper guide portion 43 in place on the upper guide portion 43 when the opening / closing body 3 is fully open.

[0033] When an operator performs an opening operation by lifting the opening / closing body 3 in the closed state to open the opening 2, the panels located at the top of the opening / closing body 3 are bent one by one and moved sequentially to the upper guide portion 43. Then, as the opening operation continues, the opening / closing body 3 moves to the upper guide portion 43, and the opening 2 is fully opened. On the other hand, when closing the opening 2, the operator performs a closing operation by pulling downward an operating part such as a hanging string (not shown) attached to the lower panel, thereby pulling the opening / closing body 3 down along the vertical guide part 41. When the opening / closing body 3 is closed, of the multiple panels on the upper guide part 43, the panel located on the opening 2 side moves sequentially to the vertical guide part 41. Then, as the closing operation continues, the opening / closing body 3 moves to the vertical guide part 41, and the drain seal 25 provided at the bottom end of the lowermost lower panel 10B comes into contact with the bottom end of the opening on the floor, ground, etc., and the opening 2 is fully closed.

[0034] In the above, an example of the opening / closing mechanism 5 is an opening / closing mechanism of the type in which an operator manually opens and closes the opening / closing body 3, but it may also be configured with an opening / closing mechanism that rotates the rotating shaft 51 via a chain hoist mechanism not shown, or an opening / closing mechanism that rotates the rotating shaft 51 using a drive source such as a motor not shown.

[0035] It is preferable that the opening / closing body 3 is provided with the above-mentioned reinforcing body and the means 60 for preventing the reinforcing body from falling over, but the opening / closing body 3 may not be provided with the reinforcing body and the means 60 for preventing the reinforcing body from falling over. That is, the opening / closing body 3 only needs to be configured to include at least the panel constituent body 10 and the guide roller 30.

[0036] The present invention Switchgear assembly methodAs shown in Figs. 3 and 6, for example, the first step is to secure an installation space 9 for an intermediate panel 10C to be positioned below the upper panel 10A between the lower end of the upper panel 10A to be positioned at the top of the opening / closing body 3 of the opening / closing device 1 and the underside 2e of the opening 2, and form a connecting panel by connecting the lower end side of the upper panel 10A to the upper end side of the intermediate panel 10C installed in the installation space; and the second step is to secure an installation space 9 for the intermediate panel 10C between the lower end of the connecting panel and the underside 2e of the opening 2, and form a connecting panel by connecting the lower end side of the connecting panel to the upper end side of the intermediate panel 10C installed in the installation space 9. The second step is to form a connecting panel by connecting the upper end side of the intermediate panel 10C, and the second step is repeated to finally secure an installation space 9 for the lower panel 10B, which will be positioned at the bottom of the opening / closing body 3, between the lower end of the connecting panel formed by connecting panels one less than the predetermined number and the underside 2e of the opening 2, and by connecting the lower end side of the connecting panel to the upper end side of the lower panel 10B installed in the installation space 9, an opening / closing body 3 is assembled in which the predetermined number of panels are connected so as to be lined up in the vertical direction of the opening 2.

[0037] Embodiment 1 According to embodiment 1 Switchgear assembly method In the first and second steps, the panel is lifted up to secure the installation space 9. That is, in the method of embodiment 1, in the first step, the upper panel 10A is lifted using a lifting means, such as a winch 8, to ensure installation space 9 for the intermediate panel 10C connected below the upper panel 10A, and in the second step, each connected panel, the number of connected panels of which increases by one, is lifted using the winch 8 to ensure installation space 9 for the intermediate panel 10C or lower panel 10B connected below each connected panel.

[0038] In the first embodiment, as shown in Figs. 4 and 5, for example, hanging portions 10S are provided on the left and right ends of the upper end of the upper panel 10A, which will be positioned at the uppermost position of the opening / closing body 3. The hanging portion 10S is formed, for example, by attaching a hanging hardware to the upper panel 10A. The hanging hardware has, for example, a connecting portion (hook portion) 10a and an attachment portion 10b, and the attachment portion 10b is attached to the inner surface of the upper panel 10A on the side of one region 6 with a screw 10d or the like. That is, hanging fittings for forming the hanging portions 10S are detachably provided on the left and right ends of the upper end of the upper panel 10A. After the assembly of the opening / closing body 3 is completed, the hanging fittings are removed. The connecting portion 10a is provided so as to protrude upward from the upper end of the upper panel 10A, for example, and a connecting hole (hanging hole) 10h is formed in the connecting portion 10a. For example, a towing rope 81 from a winch 8 previously installed above the opening 2 is connected to the connecting hole 10h of the suspending portion 10S to hoist the panel. It is preferable that the connecting portion 10a of the suspending portion 10S is bent so that the axis of the towing rope 81 during hoisting coincides with the center line 10M of the panel thickness b of the upper panel 10A. For example, a remotely operable winch 8 is installed in a state of being suspended from the rotation shaft 51 of the opening / closing mechanism 5, and the winch 8 is remotely operated from the ground to lift up the panel.

[0039] Next, the assembly construction procedure (assembly method) for an opening / closing body 3 large enough to close the opening 2, for example, constructed by connecting five panels (predetermined number is 5), will be explained based on Figure 3. In Fig. 3, the numbers in the circles attached to the panels 10A, 10C, 10C, 10C, and 10B indicate the order in which the panels are attached. Also, guide rollers 30 are attached to each panel in advance, but are not shown in Fig. 3. 3(a), the upper panel 10A, which will be positioned highest, is lifted up by a winch 8, and an installation space 9 for the middle panel 10C, which will be positioned second from the top, is secured between the lower end 10e of the upper panel 10A and the underside 2e of the opening 2. That is, for example, a towing rope 81 wound around a winch 8 suspended from the rotation shaft 51 of the opening / closing mechanism 5 is connected to a connecting hole 10h of a suspension part 10S provided on the upper panel 10A, and then the winch 8 is remotely operated to lift up the upper panel 10A, thereby securing the installation space 9. Then, the intermediate panel 10C is placed in the installation space 9, and the upper end 10t side of the intermediate panel 10C and the lower end 10e side of the upper panel 10A are connected with hinges 31 and 32 as connecting means to form a connected panel 101 (see FIG. 3(b)). Next, as shown in Figure 3(b), the connecting panel 101 is lifted up with a winch 8, and an installation space 9 for the intermediate panel 10C, which will be the third from the top, is secured between the lower end 10e of the connecting panel 101 and the underside 2e of the opening 2. Then, the intermediate panel 10C, which will be the third from the top, is installed in this installation space 9, and the upper end 10t side of the intermediate panel 10C and the lower end 10e side of the connecting panel 101 are connected with hinges 31 and 32 to form the connecting panel 102 (see Figure 3(c)). 3(c), the connecting panel 102 is lifted up with a winch 8, and an installation space 9 for the intermediate panel 10C, which will be the fourth from the top, is secured between the lower end 10e of the connecting panel 102 and the underside 2e of the opening 2. Then, the intermediate panel 10C, which will be the fourth from the top, is installed in this installation space 9, and the upper end 10t side of the intermediate panel 10C and the lower end 10e side of the connecting panel 102 are connected by hinges 31 and 32 to form a connecting panel 103 (see FIG. 3(d)). 3(d), the connecting panel 103 is lifted up with a winch 8, and an installation space 9 for the lower panel 10B, which will be positioned lowest, is secured between the lower end 10e of the connecting panel 103 and the underside 2e of the opening 2. The lower panel 10B is then installed in the installation space 9, and the opening / closing body 3 is assembled by connecting the upper end 10t side of the lower panel 10B and the lower end 10e side of the connecting panel 103 with the hinges 31 and 32. That is, after securing an installation space 9 for one panel between the lower end of the panel and the underside 2 of the opening 2, panels are connected to the lower end side of the panel to assemble an opening / closing body 3 large enough to close the opening 2. The opening and closing device 1 for opening and closing the opening 2 is configured by connecting the opening and closing body 3 and the opening and closing mechanism 5 assembled in this manner.

[0040] According to embodiment 1 Switchgear assembly method According to the method, as shown in Figure 3, a towing rope 81 suspended from a winch 8 installed above the opening 2 is connected to hanging portions 10S provided on both upper end sides of the upper panel 10A, and by remotely operating the winch 8, the upper panel 10A and the connecting panel are lifted in the order shown in Figure 3, while additional panels are added and connected to the lower ends of the upper panel 10A and the connecting panel, so that the worker M can always perform the assembly work of the opening / closing body 3 on the ground. Therefore, safe and efficient Switchgear assembly method This will enable us to achieve the following.

[0041] Embodiment 2 In the assembly method according to embodiment 1, the installation space 9 is secured by lifting the panel in the first and second steps, but the installation space 9 may also be secured by supporting the panel in the first and second steps. That is, according to embodiment 2 Switchgear assembly method In this method, a jack 85, for example, is used as a support means for supporting the panels, and while the upper panel 10A and the connecting panel are supported by the jack 85 in the order shown in Figure 6, panels are added to the lower end side of the upper panel 10A and the connecting panel and connected.

[0042] When an opening / closing body 3 large enough to close an opening 2 is constructed by connecting, for example, five panels (predetermined number is 5) vertically, the assembly construction procedure (assembly method) of an opening / closing body 3 constructed by connecting five panels will be explained based on Figure 6. In Fig. 6, the numbers in the circles attached to the panels 10A, 10C, 10C, 10C, and 10B indicate the order in which the panels are attached. Also, guide rollers 30 are attached to each panel in advance, but are not shown in Fig. 6. First, as shown in Figure 6(a), a jack 85 such as a hydraulic jack is placed on the installation surface such as the floor or ground near the underside 2e of the opening 2, and the lower end 10e of the upper panel 10A, which will be positioned highest, is supported by the jack 85, thereby securing an installation space 9 for the intermediate panel 10C, which will be positioned second from the top, between the lower end 10e of the upper panel 10A and the underside 2e of the opening 2. Then, the intermediate panel 10C is installed in the installation space 9, and the upper end 10t side of the intermediate panel 10C and the lower end 10e side of the upper panel 10A are connected with hinges 31 and 32 as connecting means to form a connected panel 101 (see FIG. 6(b)). Next, as shown in Figure 6(b), by supporting the lower end 10e side of the connecting panel 101 with a jack 85, an installation space 9 for the intermediate panel 10C, which will be located third from the top, is secured between the lower end 10e of the connecting panel 101 and the underside 2e of the opening 2. Then, the intermediate panel 10C, which will be located third from the top, is installed in this installation space 9, and the upper end 10t side of the intermediate panel 10C and the lower end 10e side of the connecting panel 101 are connected with hinges 31, 32 to form the connecting panel 102 (see Figure 6(c)). Furthermore, as shown in Figure 6(c), by supporting the lower end 10e side of the connecting panel 102 with a jack 85, an installation space 9 for the intermediate panel 10C, which will be positioned fourth from the top, is secured between the lower end 10e of the connecting panel 102 and the underside 2e of the opening 2. Then, the intermediate panel 10C, which will be positioned fourth from the top, is installed in this installation space 9, and the upper end 10t side of the intermediate panel 10C and the lower end 10e side of the connecting panel 102 are connected with hinges 31 and 32 to form a connecting panel 103 (see Figure 6(d)). 6(d), the lower end 10e side of the connecting panel 103 is supported by a jack 85, thereby securing an installation space 9 for the lower panel 10B, which will be positioned lowest, between the lower end 10e of the connecting panel 103 and the underside 2e of the opening 2. The lower panel 10B is then installed in this installation space 9, and the opening / closing body 3 is assembled by connecting the upper end 10t side of the lower panel 10B and the lower end 10e side of the connecting panel 103 with the hinges 31 and 32. That is, the panel is supported by a jack 85, and an installation space 9 for one panel is secured between the lower end of the panel and the underside 2 of the opening 2, and then panels are connected to the lower end of the panel to assemble an opening / closing body 3 large enough to close the opening 2. The opening and closing device 1 for opening and closing the opening 2 is configured by connecting the opening and closing body 3 and the opening and closing mechanism 5 assembled in this manner.

[0043] Furthermore, since the jack 85 cannot be positioned directly below the panel, the jack 85 is installed at a position (installation surface) that is not directly below the panel, and a support member (not shown) is provided at the tip end of the telescopic body (ram) of the jack 85 to support the panel. However, if the lower end surface of the panel is supported by this support member, a gap will occur between the underside of the upper panel and the top surface of the lower panel. Therefore, in the second embodiment, for example, a support member provided at the tip end of the telescopic body (ram) of the jack 85 is connected to a portion of the upper panel 10A other than the lower end surface, and then the jack 85 is operated to lift the upper panel 10A to form the installation space 9. The lower end 10e of the upper panel 10A is then connected to the upper end 10t of the intermediate panel 10C to form the connected panel 101. The support member replacement work is then performed, in which the support member is removed from the upper panel 10A and connected to a portion of the lower end of the connected panel 101 other than the lower end surface. The jack 85 is then operated to lift the connected panel 101 to form the installation space 9, and then a panel connecting work is performed, in which the lower end 10e of the connected panel 101 is connected to the upper end 10t of the intermediate panel 10C to form the connected panel 102. The support member replacement work and panel connecting work are then repeated to assemble the opening / closing body 3, which is configured by connecting a predetermined number of panels vertically.

[0044] According to the second embodiment Switchgear assembly method According to the embodiment, as in the first embodiment, the worker M can always assemble the opening / closing body 3 on the ground, which allows for safe and efficient assembly. Switchgear assembly method This will enable us to achieve the following.

[0045] In the first embodiment described above, a method of lifting a panel using a winch that can be remotely controlled on the ground has been exemplified, but the lifting means used in this method may be means other than a winch.

[0046] Furthermore, in the above-described second embodiment, a method of supporting the panels using jacks that can be operated on the ground has been exemplified, but the supporting means used in this method may be means other than jacks.

[0047] That is, according to the present invention Switchgear assembly method In this case, a lifting means that can be operated on the ground and can lift the panel may be used, or a support means that is installed on the ground and can support the panel may be used. [Explanation of symbols]

[0048] 1 Switchgear 2 aperture 3 Opening and closing body 9 Installation space 10A upper panel 10B Lower Panel 10C Middle panel (panel)

Claims

1. A method for assembling an opening / closing device having an opening / closing body configured by connecting a predetermined number of panels so as to be aligned along the vertical direction of an opening formed in a structure, a first step of lifting the upper panel with a lifting means between the lower end of the upper panel to be positioned at the top of the opening / closing body and the lower surface of the opening, thereby securing an installation space for a panel to be positioned below the upper panel, and forming a connecting panel that connects the lower end side of the upper panel with the upper end side of the panel installed in the installation space; a second step of lifting the connecting panel with the lifting means between the lower end of the connecting panel and the lower surface of the opening to secure an installation space for the panel, and forming a connecting panel by connecting the lower end side of the connecting panel with the upper end side of the panel installed in the installation space; an opening / closing body assembling step in which the second step is repeated, and finally, an opening / closing body is assembled by assembling an opening / closing body in which the predetermined number of panels are connected so as to be aligned in the vertical direction of the opening by lifting the connecting panel with the lifting means between the lower end of the connecting panel formed by connecting together panels one less than the predetermined number and the lower surface of the opening, thereby securing an installation space for the lower panel that will be positioned at the bottom of the opening / closing body and connecting the lower end side of the connecting panel with the upper end side of the lower panel installed in that installation space; an opening / closing device assembling step of assembling the opening / closing device that opens and closes the opening by connecting the opening / closing body assembled in the opening / closing body assembling step to an opening / closing mechanism disposed above the opening with a connecting member; Equipped with In the opening / closing device assembling step, one end of the connecting member is fastened to the opening / closing mechanism and the other end of the connecting member is fastened to the lower end of the assembled opening / closing body, thereby assembling the opening / closing device, and the opening / closing mechanism is configured to wind up the connecting member when the opening / closing body performs an opening operation and to pay out the connecting member when the opening / closing body performs a closing operation.

2. A method for assembling an opening / closing device having an opening / closing body formed by connecting a predetermined number of panels so as to be aligned along the vertical direction of an opening formed in a structure, comprising: a first step of lifting and supporting an upper panel with a support means between the lower end of an upper panel to be positioned at the top of the opening / closing body and the lower surface of the opening, thereby securing an installation space for a panel to be positioned below the upper panel, and forming a connecting panel that connects the lower end side of the upper panel with the upper end side of the panel installed in the installation space; a second step of lifting and supporting the connecting panel with the support means between the lower end of the connecting panel and the lower surface of the opening, thereby securing an installation space for the panel and forming a connecting panel that connects the lower end side of the connecting panel with the upper end side of the panel installed in the installation space; an opening / closing body assembling step in which the second step is repeated, and finally, an opening / closing body in which the predetermined number of panels are connected so as to be aligned in the vertical direction of the opening is assembled by lifting and supporting the connecting panel with the support means between the lower end of the connecting panel formed by connecting the number of panels that is one less than the predetermined number and the lower surface of the opening, thereby securing an installation space for the lower panel that will be positioned at the bottom of the opening / closing body, and connecting the lower end side of the connecting panel with the upper end side of the lower panel installed in the installation space; an opening / closing device assembling step of assembling the opening / closing device that opens and closes the opening by connecting the opening / closing body assembled in the opening / closing body assembling step to an opening / closing mechanism disposed above the opening with a connecting member; Equipped with In the opening / closing device assembling step, one end of the connecting member is fastened to the opening / closing mechanism and the other end of the connecting member is fastened to the lower end of the assembled opening / closing body, thereby assembling the opening / closing device, and the opening / closing mechanism is configured to wind up the connecting member when the opening / closing body performs an opening operation and to pay out the connecting member when the opening / closing body performs a closing operation.

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