Corner morning glory device

Abstract

To improve workability for installing a temporary safety apparatus for corners.SOLUTION: A temporary safety apparatus for corners comprises a first panel unit having at least one panel and a first rigid frame and a second rigid frame surrounding the panel, a second panel unit having at least one panel and a third rigid frame and a fourth rigid frame surrounding the panel, hinge structure supporting a second rigid frame and a fourth rigid frame placed adjacent to each other in the state that they are relatively rotatable, a first diagonal member connected between the hinge structure and scaffolding so as to support the hinge structure, a second diagonal member connected between the first rigid frame and the scaffolding so as to support the first rigid frame, and a third diagonal member connected between the third rigid frame and the scaffolding so as to support the third rigid frame.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present disclosure relates to a morning glory device for a corner installed on a temporary scaffold.

Background Art

[0002] Conventionally, in a temporary scaffold at a construction site or the like, a morning glory device that is installed so as to project obliquely upward to receive falling objects such as materials and tools is known (see, for example, Patent Document 1).

[0003] The morning glory device of Patent Document 1 relates to "a method of installing a corner morning glory between desired end morning glory devices in a corner area in a scaffold structure and a corner morning glory device used in the method".

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] An object of the present disclosure is to improve the workability regarding the installation of a corner morning glory device.

Means for Solving the Problems

[0006] To achieve the above objective, the corner morning glory device of the present disclosure comprises: a first panel unit having at least one panel and a first and second vertical frame surrounding the panel; a second panel unit having at least one panel and a third and fourth vertical frame surrounding the panel; a hinge structure that supports the second and fourth vertical frames, which are arranged adjacent to each other, in a manner that allows them to rotate relative to each other; a first diagonal member connected between the hinge structure and the scaffolding to support the hinge structure; a second diagonal member connected between the first vertical frame and the scaffolding to support the first vertical frame; and a third diagonal member connected between the third vertical frame and the scaffolding to support the third vertical frame. [Effects of the Invention]

[0007] According to this disclosure, it is possible to improve the workability related to the installation of corner morning glory devices. [Brief explanation of the drawing]

[0008] [Figure 1] Schematic perspective view of a morning glory apparatus according to one embodiment of the present disclosure. [Figure 2] Front view of a corner panel unit according to an embodiment. [Figure 3] Rear view of a corner panel unit according to this embodiment. [Figure 4] Schematic diagram of the diagonal member according to the embodiment [Figure 5] Schematic diagram of the rigid frame constituting the outer frame of the panel unit according to this embodiment. [Figure 6] Schematic side view of the connecting fitting for the vertical frame according to the embodiment. [Figure 7] Schematic front view of the connecting fitting for the vertical frame according to the embodiment. [Figure 8] A schematic front view showing the usage state of the connecting fittings of the vertical frame according to the embodiment. [Figure 9] Schematic front view of the central vertical frame according to the embodiment. [Figure 10A] Schematic cross-sectional view of the first hinge structure of the central frame according to the embodiment. [Figure 10B] Schematic cross-sectional view of the first hinge structure of the central frame according to the embodiment. [Figure 11A] Schematic perspective view of the second hinge structure of the central vertical frame according to the embodiment [Figure 11B] Schematic perspective view of the second hinge structure of the central vertical frame according to the embodiment [Figure 12A] Schematic front view of the third hinge structure of the central vertical frame according to the embodiment [Figure 12B] Schematic front view of the third hinge structure of the central vertical frame according to the embodiment [Figure 13] Schematic rear view of the periphery of the lower end of the central vertical frame according to the embodiment [Figure 14A] Schematic plan view of the first shaft support structure according to the embodiment [Figure 14B] Schematic plan view of the first shaft support structure according to the embodiment [Figure 15A] Schematic plan view of the second shaft support structure according to the embodiment [Figure 15B] Schematic plan view of the second shaft support structure according to the embodiment [Figure 16] Schematic perspective view of the connecting structure for connecting vertical frames according to the embodiment [Figure 17] Schematic side view of the cylindrical part according to the embodiment [Figure 18] Schematic plan view of the cylindrical part according to the embodiment [Figure 19] Schematic front view of the protruding part according to the embodiment [Figure 20] Schematic side view of the protruding part according to the embodiment [Figure 21] Schematic diagram for explaining the method of connecting vertical frames with the connecting structure according to the embodiment [Figure 22] Schematic diagram for explaining the method of connecting vertical frames with the connecting structure according to the embodiment [Figure 23] Schematic diagram for explaining the method of connecting vertical frames with the connecting structure according to the embodiment [Figure 24] Schematic diagram for explaining the method of connecting vertical frames with the connecting structure according to the embodiment[[ID=5)4]] [Figure 25] Schematic diagram for explaining the method of connecting vertical frames with the connecting structure according to the embodiment [Figure 26]A flowchart showing an example of how to assemble and install the morning glory apparatus according to the embodiment. [Figure 27A] Schematic front view illustrating how to install the morning glory device according to the flowchart shown in Figure 26. [Figure 27B] Schematic front view illustrating how to install the morning glory device according to the flowchart shown in Figure 26. [Figure 27C] Schematic front view illustrating how to install the morning glory device according to the flowchart shown in Figure 26. [Figure 27D] Schematic front view illustrating how to install the morning glory device according to the flowchart shown in Figure 26. [Figure 27E] Schematic front view illustrating how to install the morning glory device according to the flowchart shown in Figure 26. [Figure 27F] Schematic front view illustrating how to install the morning glory device according to the flowchart shown in Figure 26. [Figure 27G] Schematic front view illustrating how to install the morning glory device according to the flowchart shown in Figure 26. [Figure 27H] Schematic front view illustrating how to install the morning glory device according to the flowchart shown in Figure 26. [Figure 27I] Schematic front view illustrating how to install the morning glory device according to the flowchart shown in Figure 26. [Modes for carrying out the invention]

[0009] (Embodiment) The morning glory apparatus of this embodiment will be described below with reference to the drawings.

[0010] Figure 1 is a schematic perspective view of the morning glory device 2 of this embodiment. The morning glory device 2 shown in Figure 1 is mainly installed on temporary scaffolding at construction or repair sites of mid-to-high-rise buildings such as office buildings and condominiums to catch falling objects such as materials and tools.

[0011] The morning glory device 2 shown in Figure 1 is a corner morning glory device specifically installed at the corner of a building, and is also referred to as "corner morning glory device 2".

[0012] The bellows device 2 shown in Figure 1 comprises a plurality of panel units 4 and 6, a plurality of diagonal members 12, 14 and 16, and pivot support structures 21 and 166 as a corner bellows device. The bellows device 2 further comprises a plurality of panel units 8 and 10 and a plurality of diagonal members 18 and 20 as a straight section bellows device adjacent to the corner bellows device.

[0013] The two outer panel units 8 and 10 are linear panel units installed on the straight sections of the building and have a roughly rectangular shape when viewed from the front. Panel unit 8 is provided adjacent to panel unit 4, and panel unit 10 is provided adjacent to panel unit 6. Further outside of panel units 8 and 10, other linear panel units (not shown) may be installed in a row.

[0014] Panel units 4, 6, 8, and 10 are the main body of the morning glory device 2, which has the function of catching falling objects. Panel units 4, 6, 8, and 10 each have a generally flat, plate-like shape and are installed at an angle.

[0015] The two central panel units 4 and 6 are corner panel units installed at the corners of the building and have a roughly triangular shape when viewed from the front. The two panel units 4 and 6 are rotatably connected to each other by a hinge structure 40.

[0016] The diagonal members 12, 14, 16, 18, and 20 are rod-shaped members that support the panel units 4, 6, 8, and 10 from below, respectively. The diagonal members 12, 14, 16, 18, and 20 are installed between the panel units 4, 6, 8, and 10 and the scaffolding, respectively.

[0017] In the example shown in Figure 1, diagonal members 12 and 14 support the panel unit 4 for the left corner of the page, and diagonal members 12 and 16 support the panel unit 6 for the right corner of the page. Additionally, two diagonal members 18 support the panel unit 8 for the straight section on the left side of the page, and two diagonal members 20 support the panel unit 10 for the straight section on the right side of the page.

[0018] The diagonal members 12, 14, 16, 18, and 20 in this embodiment have the same structure.

[0019] In the morning glory device 2 shown in Figure 1, the two central panel units 4 and 6 and the three diagonal members 12, 14, and 16 mainly constitute the corner morning glory device, while the two outer panel units 8 and 10 and the four diagonal members 18 and 20 constitute the straight section morning glory device.

[0020] The following describes each component of the corner morning glory device 2.

[0021] Figures 2 and 3 are schematic front and rear views of panel units 4 and 6, respectively.

[0022] As shown in Figures 2 and 3, the panel unit 4 on the left side of the paper has a triangular shape and comprises a plurality of panels 22A, 22B, 22C, and 22D arranged inside the triangle, a pair of vertical frames 24 and 26 that form two sides of the triangle, and an upper frame 28 that forms the remaining side of the triangle.

[0023] Panels 22A, 22B, 22C, and 22D are components located in the center of the panel unit 4 and have the function of receiving falling objects. In the example shown in Figures 2 and 3, panels 22A, 22B, 22C, and 22D are stacked from bottom to top to form a single continuous panel. In this embodiment, panels 22A, 22B, 22C, and 22D are made of corrugated FRP panels surrounded by an aluminum frame around their outer periphery, but any material and structure may be used.

[0024] The four panels 22A, 22B, 22C, and 22D are held together by a pair of rigid frames 24, 26 and an upper frame 28.

[0025] The vertical frames 24, 26 and the upper frame 28 are frame members that constitute the outer frame of the panel unit 4, and their ends are connected to each other. The lower ends of the vertical frames 24 and 26 are connected to each other, and the upper ends of the vertical frames 24 and 26 are connected to both ends of the upper frame 28, respectively. The vertical frames 24 and 26 constitute a pair of long sides of the panel unit 4, and the upper frame 28 constitutes a short side of the panel unit 4.

[0026] The panel unit 6 on the right side of the page has a triangular shape and comprises multiple panels 30A, 30B, 30C, and 30D arranged inside the triangle, a pair of vertical frames 32 and 34 forming two sides of the triangle, and an upper frame 36 forming the remaining side of the triangle. Panel unit 6 is a symmetrical configuration of panel unit 4, and since each component of panel unit 6 corresponds to each component of panel unit 4, a detailed explanation is omitted.

[0027] As shown in Figure 2, the upper frames 28 and 36 each have hooks 184 and 186, respectively. The hooks 184 and 186 have the function of positioning the corner panel units 4 and 6 by hooking and locking them onto the adjacent straight section panel units 8 and 10.

[0028] The two panel units 4 and 6 are mounted so as to be rotatable around the central axis C1. This allows for adjustment of the relative rotation angles of the panel units 4 and 6 when installing them at the corners of a building.

[0029] A central vertical frame 38 is positioned between the panel units 4 and 6. The central vertical frame 38 is an integrated frame member composed of the aforementioned vertical frames 26 and 34 and a hinge structure 40. By connecting the two panel units 4 and 6 via the hinge structure 40, the panel units 4 and 6 can rotate around the central axis C1.

[0030] Figure 4 is a schematic diagram showing diagonal members 12, 14, 16, 18, and 20, where (a) is a schematic front view and (b) is a schematic side view. Since the diagonal members 12, 14, 16, 18, and 20 in this embodiment each have the same structure, diagonal member 12 will be illustrated and described as a representative example.

[0031] The diagonal member 12 shown in Figure 4 comprises rod-shaped parts 42 and 44 and connecting fittings 46 and 48.

[0032] The rod-shaped portions 42 and 44 are rod-shaped members that extend along the longitudinal direction L1. The rod-shaped portions 42 and 44 do not have the function of extending or retracting along the longitudinal direction L1, for example.

[0033] The connecting fitting 46 is a fitting provided on the upper end 12B of the diagonal member 12 and is connected to the central vertical frame 38 shown in Figure 2. The connecting fitting 46 in this embodiment has a gravity lock that protrudes in the width direction W1 perpendicular to the longitudinal direction L1, and by inserting it into the through hole of the central vertical frame 38, the upper end 12B of the diagonal member 12 is connected to the central vertical frame 38 in a manner that prevents it from falling off. Connecting fittings 46 are also provided on the upper ends 14B, 16B, 18B, and 20B of the diagonal members 14, 16, 18, and 20, respectively.

[0034] The connecting fitting 48 is a fitting provided on the lower end 12A of the diagonal member 12 and is connected to the pivot support structure 21 shown in Figure 1. The connecting fitting 48 has a through hole 50 that penetrates in the width direction W1, and the gravity lock of the pivot support structure 21 is inserted into the through hole 50, thereby pivotally supporting the lower end 12A of the diagonal member 12 so that it can rotate. Connecting fittings 48 are also provided on the lower ends 14A, 16A, 18A, and 20A of the diagonal members 14, 16, 18, and 20, respectively.

[0035] The pivot support structure 21 shown in Figure 1 has the function of pivotally supporting the lower end 12A of the diagonal member 12, as well as the lower end 14A and 16A of the diagonal members 14 and 16, respectively. The pivot support structure 21, which pivotally supports the diagonal members 12, 14 and 16, supports the two corner panel units 4 and 6 from below via the diagonal members 12, 14 and 16. The detailed structure of the pivot support structure 21 will be described later.

[0036] The more detailed configurations of panel units 4 and 6 shown in Figures 2 and 3 will be explained using the drawings from Figure 5 onward. Hereafter, explanations of components common to both panel units 4 and 6 will be omitted where appropriate.

[0037] Figure 5 is a schematic front view showing the vertical frames 24 and 32 provided in panel units 4 and 6 adjacent to the straight section panel units 8 and 10 (Figure 1). (a) is a schematic front view of the vertical frame 24, and (b) is a schematic front view of the vertical frame 32.

[0038] As shown in Figure 5(a), the vertical frame 24 comprises a frame portion 52, a connecting fitting 54, and a protruding portion 56.

[0039] The frame portion 52 is a frame-shaped member that extends uniformly in the longitudinal direction L2. The frame portion 52 does not have the function of expanding or contracting along the longitudinal direction L2, for example. The same applies to the other frame portions and frame members. The frame portion 52 forms a panel space 58 on its interior, with one side (arrow P2) in the width direction W2 open, so that the ends of the multiple panels 22A to 22D described above can be arranged.

[0040] The connecting fitting 54 is a fitting for connecting the upper end portion 14B of the aforementioned diagonal member 14. The connecting fitting 54 is provided near the upper end of the frame portion 52.

[0041] The protruding portion 56 is a part for connecting the central vertical frame 38 to the vertical frame 26 shown in Figure 3. The protruding portion 56 is built into the panel space 58 near the lower end of the frame portion 52. By inserting the protruding portion 56 into the receiving portion 84 (Figure 9) of the vertical frame 26, the lower end of the vertical frame 24 can be rotatably connected to the lower end of the vertical frame 26. The detailed configuration of the connection structure will be described later.

[0042] The frame 32 shown in Figure 5(b) has a structure symmetrical to the frame 24 shown in (a), and comprises a frame portion 60, a connecting fitting 62, and a protruding portion 64.

[0043] The frame portion 60 extends uniformly in the longitudinal direction L3, and a panel space 66 is formed on the inside, with one side (arrow P3) in the width direction W3 open, so that the ends of multiple panels 30A to 30D can be arranged.

[0044] The connecting fitting 62 is a fitting for connecting the upper end portion 16B of the aforementioned diagonal member 16. The protruding portion 64 is a part for connecting the central vertical frame 38 to the vertical frame 34.

[0045] Next, the configuration and usage of the connecting fittings 54 and 62 will be explained using Figures 6 to 8.

[0046] Figure 6 is a schematic side view of the connecting fittings 54 and 62, and Figure 7 is a schematic front view of the connecting fittings 54 and 62. Figure 8 is a schematic front view showing the connecting fitting 62 in use. Since the connecting fittings 54 and 62 in this embodiment have the same structure, the connecting fitting 54 will be described as a representative example.

[0047] The connecting fitting 54 comprises a base portion 68, a rotating plate 70, and a mounting bolt 72.

[0048] The base portion 68 is the part for attaching the connecting fitting 54 to the frame 24, and is fixed in contact with the side surface of the frame portion 52 of the frame 24 in the direction of arrow A1 shown in Figure 6. Any means of fixing, such as bolts, may be used.

[0049] The rotating plate 70 is a plate that is mounted so as to be rotatable relative to the base portion 68. The rotating plate 70 is rotatable about the rotation axis C2 shown in Figures 6 and 7, in the rotation direction R2 shown in Figure 7. In Figure 7, the states in which the rotating plate 70 is in multiple rotation positions are shown by solid and dotted lines.

[0050] The mounting bolt 72 is used to rotatably attach the rotating plate 70 to the base portion 68. The mounting bolt 72 penetrates both the base portion 68 and the rotating plate 70, and the axial direction of the mounting bolt 72 corresponds to the rotation axis C2 of the rotating plate 70.

[0051] Figure 8 shows the state in which a connecting fitting 46, provided on the upper end 16B of the diagonal member 16, is connected to a connecting fitting 62 fixed to the vertical frame 32.

[0052] As shown in Figure 8, the gravity lock 78 of the connecting fitting 46 is inserted into the through hole 76 of the connecting fitting 62. The locking part, which is rotatably provided at the tip of the gravity lock 78, rotates in a direction inclined with respect to the rod-shaped part in response to gravity, thereby connecting the diagonal member 16 having the connecting fitting 46 to the vertical frame 32 in a state that prevents it from falling off.

[0053] With the above configuration, since the rotating plate 70 can rotate in the rotational direction R2 about the rotation axis C2, even when the inclination angles of the diagonal members 16 and vertical frames 32 change in various ways, the rotating plate 70 can rotate to the appropriate orientation and easily maintain the connected state.

[0054] Next, the configuration of the central vertical frame 38 will be explained using the drawings from Figure 9 onward.

[0055] Figure 9 is a schematic front view of the central frame 38.

[0056] As shown in Figure 9, the central vertical frame 38's vertical frame 26 comprises a frame portion 82 and a receiving portion 84.

[0057] The frame portion 82 extends uniformly in the longitudinal direction L4, and forms a panel space 85 on its interior side, with one side (arrow P4) open in the width direction W4, so that the ends of multiple panels 22A to 22D can be arranged.

[0058] The receiving portion 84 is a part for receiving the protruding portion 56 of the vertical frame 24 shown in Figure 5, and together with the protruding portion 56, it constitutes the connecting structure 200 (Figure 16). The receiving portion 84 is provided near the lower end of the frame portion 82.

[0059] Similarly, the vertical frame 34 comprises a frame portion 86 and a receiving portion 88.

[0060] The frame portion 86 extends uniformly in the longitudinal direction L4 and forms a panel space 90 with one side (arrow P5) open in the width direction W5 so that the ends of multiple panels 30A to 30D can be arranged.

[0061] The receiving portion 88 is a part for receiving the protruding portion 64 of the vertical frame 32 shown in Figure 5, and together with the protruding portion 64, it constitutes the connecting structure 200 (Figure 16). The receiving portion 88 is provided near the lower end of the frame portion 86.

[0062] The hinge structure 40 that rotatably connects the vertical frame 26 and the vertical frame 34 comprises a first hinge structure 92, a second hinge structure 94, and a third hinge structure 96.

[0063] The first hinge structure 92 is a structure that connects the vertical frames 26 and 34 so that they can rotate around the pivot axis C1, and extends uniformly in a long, slender shape along the longitudinal direction L4 of the vertical frames 26 and 34.

[0064] Here, Figures 10A and 10B are schematic cross-sectional views of the first hinge structure 92, showing different relative rotation angles of the vertical frames 26 and 34, respectively.

[0065] As shown in Figures 10A and 10B, the first hinge structure 92 comprises a hinge portion 98, a mounting portion 100, and a mounting portion 102.

[0066] The hinge portion 98 is a hinge portion that can rotate about the rotation axis C1 and has a first portion 98A and a second portion 98B. The first portion 98A is the portion that is attached to the mounting portion 100, and the second portion 98B is the portion that is attached to the mounting portion 102. The first portion 98A and the second portion 98B are rotatable relative to each other about the rotation axis C1.

[0067] In this embodiment, the hinge portion 98 is integrally constructed including the first portion 98A and the second portion 98B, but they may be separate parts. The material of the hinge portion 98 may be any material, such as a flexible resin or a hard metal.

[0068] The mounting portion 100 is fixed to the side surface of the frame portion 82 of the vertical frame 26 while housing and fixing the first portion 98A. The mounting portion 102 is fixed to the side surface of the frame portion 86 of the vertical frame 34 while housing and fixing the second portion 98B.

[0069] According to the above configuration, the rigid frames 26 and 34 attached to the hinge portion 98 can rotate relative to each other along the rotational direction R1 with respect to the rotation axis C1.

[0070] The first hinge structure 92 extends long along the longitudinal direction L4 of the vertical frames 26 and 34, so it can stably support the vertical frames 26 and 34, and because it is a single-axis rotating structure having only a rotation axis C1, the rotational movement of the vertical frames 26 and 34 can be simplified.

[0071] Returning to Figure 9, the second hinge structure 94, like the first hinge structure 92, is a hinge structure that connects the vertical frames 26 and 34 so that they can rotate relative to each other. Unlike the first hinge structure 92, the second hinge structure 94 functions as a pivot structure for pivotally supporting the upper end portion 12B of the diagonal member 12 described above.

[0072] Figures 11A and 11B are schematic perspective views of the second hinge structure 94, showing different mounting angles for the diagonal members 12 (not shown) connected to the second hinge structure 94.

[0073] As shown in Figures 11A and 11B, the second hinge structure 94 comprises mounting parts 104 and 106, rotating plates 108 and 110, a rotating part 112, and a connecting plate 114.

[0074] Mounting parts 104 and 106 are components for attaching the second hinge structure 94 to the upright frames 26 and 34, respectively. Mounting part 104 is fixed to the side of the frame portion 82 of the upright frame 26, and mounting part 106 is fixed to the side of the frame portion 86 of the upright frame 34.

[0075] Mounting portion 104 rotatably supports the rotating plate 108 around the rotation axis C2, and mounting portion 106 rotatably supports the rotating plate 110 around the rotation axis C3.

[0076] Rotating plate 108 is a plate rotatably mounted between mounting portion 104 and rotating portion 112, and rotating plate 110 is a plate rotatably mounted between mounting portion 106 and rotating portion 112. Rotating plate 108 has one end pivotally supported by mounting portion 104 and the other end pivotally supported by rotating portion 112. Rotating plate 110 has one end pivotally supported by mounting portion 106 and the other end pivotally supported by rotating portion 112.

[0077] The rotating part 112 is a member that pivotally supports the rotating plates 108 and 110, respectively. The rotating part 112 has a pivot shaft C4 that pivotally supports the rotating plate 108 and a pivot shaft C5 that pivotally supports the rotating plate 110. A connecting plate 114 is erected on the front surface of the rotating part 112.

[0078] The connecting plate 114 is a plate for connecting and pivotally supporting a connecting fitting 46 provided on the upper end 12B of the diagonal member 12 (not shown). The connecting plate 114 has a through hole 116 that penetrates in the thickness direction, and the gravity lock of the connecting fitting 46 is inserted into the through hole 116, thereby connecting the upper end 12B of the diagonal member 12 in a state that prevents it from falling off.

[0079] Because the rotating part 112 is rotatable by a two-axis rotation structure, the position and angle of the connecting plate 114 that pivotally supports the upper end 12B of the diagonal member 12 can be adjusted more flexibly. This makes it easier to connect the upper end 12B of the diagonal member 12 to the second hinge structure 94, and to move the diagonal member 12, etc., more smoothly when tilting and unfolding the panel units 4 and 6.

[0080] Returning to Figure 9, the third hinge structure 96, like the first hinge structure 92 and the second hinge structure 94, is a hinge structure that connects the vertical frames 26 and 34 so that they can rotate relative to each other. Unlike the first hinge structure 92 and the second hinge structure 94, the third hinge structure 96 functions as a connecting structure for pivotally supporting the central vertical frame 38 to the scaffolding.

[0081] The third hinge structure 96 is located below the second hinge structure 94 and is attached near the lower ends of the vertical frames 26 and 34.

[0082] Figures 12A and 12B are schematic front views of the third hinge structure 96, showing different relative rotation angles of the vertical frames 26 and 34 connected to the third hinge structure 96.

[0083] As shown in Figures 12A and 12B, the third hinge structure 96 comprises mounting parts 118 and 120, connecting parts 122 and 124, and connecting plates 126 and 128.

[0084] Mounting parts 118 and 120 are components for attaching the third hinge structure 96 to the upright frames 26 and 34, respectively. Mounting part 118 is fixed to the back of the frame portion 82 of the upright frame 26, and mounting part 120 is fixed to the back of the frame portion 86 of the upright frame 34.

[0085] The mounting portion 118 rotatably supports the connecting portion 122 around the rotation axis C6, and the mounting portion 120 rotatably supports the connecting portion 124 around the rotation axis C7.

[0086] The connecting portion 122 is a member for rotatably connecting the mounting portion 118 and the connecting plate 126, and the connecting plate 126 is integrally fixed to it. The connecting portion 124 is a member for rotatably connecting the mounting portion 120 and the connecting plate 128, and the connecting plate 128 is integrally fixed to it.

[0087] The connecting plates 126 and 128 are plates for connecting and pivotally supporting the central frame 38 to the scaffolding, and are attached to the second pivot structure 166 (Figures 15A and 15B), which will be described later. Connecting plate 126 has a through hole 130 that penetrates in the thickness direction, and connecting plate 128 has a through hole 132 that penetrates in the thickness direction. Connecting plates 126 and 128 are constructed separately from each other and can be arranged so that the through holes 130 and 132 are aligned in a straight line. In this state, by inserting the gravity lock of the second pivot structure 166, which will be described later, into both the through holes 130 and 132, the central frame 38 can be connected to the scaffolding in a state that prevents it from falling off.

[0088] Figure 13 is a schematic rear view showing the area around the lower end of the central vertical frame 38. In Figure 13, the vertical frame 24 is attached to the vertical frame 26 of the central vertical frame 38, and the vertical frame 34 is attached to the vertical frame 32 of the central vertical frame 38.

[0089] As shown in Figure 13, the central frame 38 is provided with opening stoppers 134 and 136 on its rear side. The opening stopper 134 is a member for restricting the rotation of the frame 24 relative to the frame 26, and the opening stopper 136 is a member for restricting the rotation of the frame 32 relative to the frame 34. Both the opening stoppers 134 and 136 are locked to the rear side of the first hinge structure 92 of the hinge structure 40.

[0090] The anti-opening member 134 has locking portions 138 and 140 for engaging with the first hinge structure 92. The locking portions 138 and 140 are composed of through holes combining an oval shape and a circular shape, and can accommodate a pin erected on the first hinge structure 92, thereby locking the anti-opening member 134 in a predetermined position. The anti-opening member 134 further has another locking portion 142. The locking portion 142 is the part for engaging the anti-opening member 134 with the upright frame 24. With the locking portion 138 engaged with the pin on the upright frame 26, the locking portion 142 can be engaged with a pin erected on the upright frame 24 (arrow B1), thereby connecting the anti-opening member 134 between the upright frames 24 and 26 (shown by a dotted line). This maintains the relative rotation angle of the upright frames 24 and 26.

[0091] The opening stopper member 136 has locking parts 144 and 146 for engaging with the first hinge structure 92. The locking parts 144 and 146 are composed of through holes combining an oval shape and a circular shape, and can accommodate a pin erected on the first hinge structure 92, thereby locking the opening stopper member 136 in a predetermined position. With the locking part 144 engaged with the pin on the upright frame 34, the locking part 146 can be engaged with a pin erected on the upright frame 32 (arrow B2), thereby connecting the opening stopper member 136 between the upright frames 32 and 34 (shown by a dotted line). This maintains the relative rotation angle of the upright frames 32 and 34. In Figure 3, the state in which the opening stopper members 134 and 136 are engaged with the hinge structure 40 is shown by solid lines, and the state in which they are connected between the upright frames 24 and 26 and between the upright frames 32 and 34 is shown by dotted lines.

[0092] Next, the first support structure 21 for supporting the diagonal members 12, 14, and 16 will be explained using Figures 14A and 14B.

[0093] Figures 14A and 14B are schematic plan views of the first pivot structure 21, showing the three pivot points 148, 150, and 152 in different rotational positions.

[0094] As shown in Figures 14A and 14B, the first pivot structure 21 comprises three central pivot sections 148, 150, and 152, two outer pivot sections 151 and 153, a first holding section 154, a second holding section 155, a connecting section 156, and a fixing section 158.

[0095] The three central pivot points 148, 150, and 152 are members for rotatably pivoting the lower ends 12A, 14A, and 16A of the diagonal members 12, 14, and 16, respectively. Pivot point 148 pivots the lower end 12A of the diagonal member 12 so that it can rotate around the rotation axis C8, pivot point 150 pivots the lower end 14A of the diagonal member 14 so that it can rotate around the rotation axis C9, and pivot point 152 pivots the lower end 16A of the diagonal member 16 so that it can rotate around the rotation axis C10.

[0096] The pivot supports 148, 150, and 152 are each held by the first holding part 154 so as to be rotatable around the rotation axes C11, C12, and C13. Figure 14B shows the pivot supports 148, 150, and 152 shown in Figure 14A rotated by approximately 90 degrees around the rotation axes C11, C12, and C113, respectively.

[0097] In this embodiment, the pivot points 148, 150, and 152 each consist of a plate portion rotatably held by the first holding portion 154 and a gravity lock inserted through the plate portion. In Figure 14B, the gravity lock is not shown.

[0098] As shown in Figure 14B, through holes 160, 162, and 164 are formed in the plate portions of the pivot points 148, 150, and 152, respectively. Gravity locks, as shown in Figure 14A, are inserted through each of the through holes 160, 162, and 164.

[0099] Each gravity lock is inserted into a through hole 50 in a connecting fitting 48 (Figure 4) located at the lower ends 12A, 14A, and 16A of the diagonal members 12, 14, and 16. This allows the lower ends 12A, 14A, and 16A of the diagonal members 12, 14, and 16 to be pivotally supported, allowing them to rotate around the rotation axes C8, C9, and C10, which correspond to the axial direction of the gravity lock.

[0100] The first holding portion 154 is a member that integrally holds the pivot supports 148, 150, and 152. By connecting the pivot supports 148, 150, and 152 to the first holding portion 154 with bolts, the pivot supports 148, 150, and 152 are held in a state where they can rotate around the rotation axes C11, C12, and C13, which correspond to the axial direction of the bolts.

[0101] The second holding portion 155 is a member that integrally holds the two outer pivot supports 151 and 153, and is fixed to the first holding portion 154. In this embodiment, the second holding portion 155 permanently holds the pivot supports 151 and 153.

[0102] The two outer pivot supports 151 and 153 are members for rotatably pivoting the lower ends 18A and 20A of the diagonal members 18 and 20, respectively. Pivot support 151 pivots the lower end 18A of the diagonal member 18 so that it can rotate around the rotation axis C14, and pivot support 153 pivots the lower end 20A of the diagonal member 20 so that it can rotate around the rotation axis C15.

[0103] In this embodiment, the pivot supports 151 and 153 are each composed of gravity locks fixedly held by the second holding portion 155 and are inserted into through holes 50 of connecting fittings 48 (Figure 4) located at the lower ends 18A and 20A of the diagonal members 18 and 20.

[0104] The connecting portion 156 is a plate-shaped member that connects the second holding portion 155 and the fixing portion 158.

[0105] The fixing part 158 ​​is a member for fixing the first pivot structure 21 to the scaffolding. In this embodiment, the fixing part 158 ​​is a single clamp and is fixed by gripping the vertical pipe P1 provided on the scaffolding.

[0106] According to the above configuration, the three central pivot points 148, 150, and 152 rotatably pivot the lower ends 12A, 14A, and 16A of the three diagonal members 12, 14, and 16 that support the corner panel units 4 and 6. The two outer pivot points 151 and 153 rotatably pivot the lower ends 18A and 20A of the two diagonal members 18 and 20 that support the straight section panel units 8 and 10.

[0107] In particular, since the three central pivot points 148, 150, and 152 are rotatable around the rotation axes C11, C12, and C13 respectively, the diagonal members 12, 14, and 16 supported by the pivot points 148, 150, and 152 can also rotate not only around the rotation axes C8 to C10, but also around rotation axes C11 to C13 in different directions. This allows for more flexible adjustment of the angle and position of the diagonal members 12, 14, and 16 when installing the corner panel units 4 and 6, improving work efficiency when installing the corner morning glory device 2.

[0108] For the diagonal members 18 and 20 that support the panel units 8 and 10 for the straight sections, if they are pivotally supported by the pivot supports 151 and 153 so as to be rotatable around the rotation axes C14 and C15, there is no need to rotate them around rotation axes in different directions. For this reason, the pivot supports 151 and 153 are fixedly held by the second holding part 155.

[0109] Next, the second support structure 166 for pivotally supporting the central vertical frame 38 will be explained using Figures 15A and 15B.

[0110] Figures 15A and 15B are schematic plan views of the second pivot structure 166, respectively, showing the pivot portion 168 in different rotational positions.

[0111] As shown in Figures 15A and 15B, the second pivot structure 166 comprises a central pivot 168, two outer pivots 170 and 172, a holding portion 174, a support plate 175, a connecting portion 176, and a fixing portion 178.

[0112] The pivot support 168 is a member that rotatably pivots the third hinge structure 96 of the central frame 38. The pivot support 168 is supported by the support plate 175 in a state that allows it to rotate about the rotation axis C16. Figure 15B shows the pivot support 168 shown in Figure 15A rotated about the rotation axis C16.

[0113] The pivot support 168 of this embodiment consists of a plate portion that is rotatably attached to the support plate 175 and a gravity lock (Figure 15B) that is inserted through the plate portion. The gravity lock is not shown in Figure 15A.

[0114] As shown in Figure 15B, the gravity lock of the pivot portion 168 is inserted through the through holes 130 and 132 of the two connecting plates 126 and 128 of the third hinge structure 96. This allows the third hinge structure 96, which has the connecting plates 126 and 128, and the central frame 38 comprising it, to be pivotally supported about a rotation axis C17 corresponding to the axial direction of the gravity lock.

[0115] The two outer pivot supports 170 and 172 are members for rotatably pivoting the panel units 8 and 10 for the straight sections, respectively. In this embodiment, the pivot supports 170 and 172 each consist of a plate portion integrally provided with the holding portion 174 and a gravity lock (Figure 15B) inserted through the plate portion. The lower ends 8A and 10A (lower frames) of the panel units 8 and 10 are connected to the respective gravity locks of the pivot supports 170 and 172, so that the panel units 8 and 10 for the straight sections are rotatably pivoted around the rotation axes C18 and C19 corresponding to the axial direction of the gravity locks.

[0116] According to the above configuration, one central pivot 168 rotatably pivots a central frame 38 that supports the corner panel units 4 and 6, while the two outer pivot 170 and 172 rotatably pivots a panel unit 8 and 10 for the straight sections.

[0117] In particular, because the pivot support 168 is rotatable about the rotation axis C16, the third hinge structure 96 and the central vertical frame 38, which are pivotally supported by the pivot support 168, can also rotate in the rotational direction about the rotation axis C16. This makes it easier to adjust the angle and position of the central vertical frame 38 when installing the corner panel units 4 and 6, and improves the workability when installing the corner morning glory device 2.

[0118] Next, the connecting structure 200 for connecting the vertical frames 24 and 26 with each other, and the vertical frames 32 and 34 with each other, will be explained using Figures 16 to 25. Since the connecting structure for vertical frames 24 and 26 with each other and the connecting structure for vertical frames 32 and 34 with each other are similar in structure, Figures 16 to 25 will use the connecting structure 200 for vertical frames 24 and 26 as a representative example.

[0119] Figure 16 is a schematic perspective view showing the connecting structure 200.

[0120] As shown in Figure 16, the connecting structure 200 includes a protruding portion 56 provided on the vertical frame 24 and a receiving portion 84 provided on the vertical frame 26 (not shown).

[0121] The protruding portion 56 is a member that protrudes in the panel space 58 of the frame 24 in the direction from the upper end to the lower end of the frame 24 (arrow A2). The protruding portion 56 is attached and fixed to the inner wall surface 207 of the frame 24 via the first mounting portion 201 and the second mounting portion 203.

[0122] The receiving portion 84 is a member for receiving the protruding portion 56 and includes a mounting portion 202 for fixing and attaching to the vertical frame 26, and a cylindrical portion 204.

[0123] The cylindrical portion 204 is a cylindrical member that forms an opening 205 for receiving the protruding portion 56. The cylindrical portion 204 has an arc-shaped cross-section centered on a horizontal central axis C20. The cylindrical portion 204 is fixed in a state where it is inserted into a through hole 206 provided in the mounting portion 202.

[0124] Figures 17 and 18 are schematic side and top views of the cylindrical portion 204, respectively.

[0125] As shown in Figures 17 and 18, the cylindrical portion 204 has an outer circumferential surface 208 and an inner circumferential surface 210, forming an opening 205 that penetrates from the outer circumferential surface 208 to the inner circumferential surface 210.

[0126] The opening 205 has a first opening 212, a second opening 214A, and a third opening 214B.

[0127] The first opening 212, the second opening 214A, and the third opening 214B are each portions in the opening 205 with different lengths in the direction along the central axis C20 (width direction W6), and are provided continuously with respect to each other in the radial direction E1 perpendicular to the width direction W6.

[0128] The second opening 214A is provided on one side relative to the first opening 212, and the third opening 214B is provided on the other side relative to the first opening 212 (the side opposite to the second opening 214A).

[0129] In the cross-section perpendicular to the central axis C20 shown in Figure 17, the length (arc length) M1 of the first opening 212 is shorter than the length (arc length) M2 of the second opening 214A and the length (arc length) M3 of the third opening 214B. That is, M1 <M2、M3である。

[0130] The second opening 214A terminates at the first restricting wall 215, and the third opening 214B terminates at the second restricting wall 217. The restricting walls 215 and 217 each function as walls to restrict the rotation of the protrusion 56 and the rigid frame 24 having it.

[0131] As shown in Figure 18, the length of the width W6 is such that the first opening 212 has a first opening width D1, the second opening 214A has a second opening width D2, and the third opening 214B has a third opening width D3. The first opening width D1 is longer than the second opening width D2 and the third opening width D3. That is, D1 > D2 and D3. In this embodiment, D2 = D3.

[0132] In this embodiment, the first opening 212 is provided across the entire width W6, but it is not limited to this case. It may also be provided inside the end of the width W6 in the cylindrical portion 204, similar to the openings 214A and 214B.

[0133] As shown in Figure 18, when the cylindrical portion 204 is viewed from above, the center of the radial direction E1 of the entire opening 205 roughly coincides with the central axis C20, whereas the center 213 of the radial direction E1 of the first opening 212 is positioned offset to one side (arrow A3) relative to the central axis C20.

[0134] Figures 19 and 20 are schematic front and side views of the protruding portion 56, respectively.

[0135] As shown in Figures 19 and 20, the protrusion 56 comprises a first portion 216, a second portion 218, and a third portion 220.

[0136] The first part 216 corresponds to the tip of the projection 56, and the second part 218 is the part on the opposite side (base end side) from the tip side of the first part 216. In this embodiment, the first part 216 and the second part 218 are composed of a single plate.

[0137] As shown in Figure 19, the first part 216 and the second part 218 have different lengths in the width direction W7 perpendicular to the projection direction (arrow A2) of the projection 56. Specifically, the first part 216 has a first width L1, and the second part 218 has a second width L2. The first width L1 is longer than the second width L2; that is, L1 > L2.

[0138] The first portion 216 is the part that first enters the opening 205 of the receiving portion 84 when the protruding portion 56 is inserted into the opening 205. To improve the insertability of the protruding portion 56, the corners of the first portion 216 are chamfered. As shown in Figure 20, the first portion 216 has a thickness M4 in the thickness direction T7. The thickness M4 is shorter than the length M1 of the first opening 212 of the opening 205 shown in Figures 17 and 18. That is, M4 <M1である。

[0139] The third portion 220 is a portion erected on one main surface of the first portion 216 and the second portion 218. The third portion 220 is provided as a reinforcing portion of the plate-shaped first portion 216 and the second portion 218. The third portion 220 extends along the projection direction (arrow A2), similar to the first portion 216 and the second portion 218, and terminates at a position prior to the tip of the first portion 216.

[0140] A specific method for rotatably connecting the vertical frames 24 and 26 by inserting the protruding portion 56 having the above configuration into the opening 205 of the receiving portion 84 will be explained with reference to Figures 21 to 25.

[0141] Figures 21 to 25 are schematic diagrams illustrating a method for rotatably connecting the vertical frames 24 and 26 in the connecting structure 200.

[0142] As shown in Figure 21, first, the frame 26 is brought into contact with the frame 24 (arrow A4-1) to position the frame 26. In this position, the frame 26 is moved downward (arrow A4-2) to insert the protruding portion 56 provided on the frame 26 into the opening 205 of the receiving portion 84 provided on the frame 24. By adjusting the position and orientation of the frame 26 by bringing it into contact with the frame 24 in this way, the protruding portion 56 can be inserted into the opening 205 with high accuracy and ease, thereby improving work efficiency.

[0143] Figure 22 is a schematic plan view of the cylindrical portion 204 and the protruding portion 56 shown in Figure 21, as viewed from the insertion direction.

[0144] As shown in Figure 22, the first portion 216, which corresponds to the tip of the protrusion 56, is inserted toward the first opening 212 of the opening 205. The first opening width D1 of the first opening 212 is longer than the first width L1 of the first portion 216, and the length M1 of the first opening 212 is longer than the thickness M4 of the first portion 216, so the first portion 216 can be inserted into the first opening 212. On the other hand, the second opening widths D2 and D3 of the openings 214A and 214B are shorter than the first width L1 of the first portion 216, so the first portion 216 cannot be inserted into the openings 214A and 214B. For this reason, the insertion position when inserting the protrusion 56 into the opening 205 is limited to the first opening 212.

[0145] When the first portion 216 passes through the first opening 212, the restriction on the movement of the first portion 216 by the first opening 212 is released, and only the second portion 218 and the third portion 220 are positioned in the opening 205. Since the second width L2 of the second portion 218 is shorter than the opening widths D2 and D3 of the openings 214A and 214B, the projection 56 becomes movable along the radial direction E1 of the cylindrical portion 204.

[0146] Figures 23 and 24 are schematic side views showing the state in which the protrusion 56 enters the opening 205 and the tip of the first portion 216 contacts the inner circumferential surface 210 of the cylindrical portion 204. Figure 23 shows the state in which the protrusion 56 has started to contact the inner circumferential surface 210, and Figure 24 shows the subsequent state.

[0147] As shown in Figure 23, when the tip of the first portion 216 contacts the inner circumferential surface 210 of the cylindrical portion 204, the projection 56 having the first portion 216 becomes movable while maintaining contact with the inner circumferential surface 210. In particular, since the inner circumferential surface 210 is an arcuate surface, the projection 56 becomes rotatable along the rotational direction R3.

[0148] As shown in Figure 24, the worker rotates the rigid frame 26 in the rotational direction R4.

[0149] Figure 25 is a schematic plan view showing the rotatable range of the protrusion 56.

[0150] As shown in Figure 25, the projection 56 is rotatable between a first rotational position (projection 56A) and a second rotational position (projection 56B) (arrow A5). In the first rotational position, the third portion 220 of projection 56A abuts against the first restricting wall 215, and in the second rotational position, the first portion 216 and the second portion 218 of projection 56B abut against the second restricting wall 217. The rotational range of projection 56 and the frame 26 comprising it is contained within a predetermined range by the restricting walls 215 and 217.

[0151] According to the connecting structure 200 having the above configuration, the vertical frames 24, 26 and the vertical frames 32, 34 can be easily and rotatably connected to each other.

[0152] To release the connection between the vertical frames 24 and 26, the first portion 216 of the protruding part 56 is moved to a rotational position that overlaps with the first opening 212 of the opening 205, and then pulled out in the opposite direction to the protruding direction of the protruding part 56. Since the first width D1 of the first portion 216 is longer than the opening widths L2 and L3 of the openings 214A and 214B, the protruding part 56 is prevented from falling out as long as the first portion 216 is directly below the openings 214A and 214B.

[0153] Next, a method for installing the morning glory device 2 having the above-described configuration at the corner of a building will be explained using Figures 26 and 27A to 27I.

[0154] Figure 26 is a flowchart illustrating an example of how to assemble and install the morning glory device 2 of this embodiment. Figures 27A to 27I are schematic front views illustrating how to assemble and install the morning glory device 2 according to the flowchart shown in Figure 26.

[0155] As shown in Figure 26, the worker first attaches the first pivot structure 21 and the second pivot structure 166 to the scaffolding at the corner of the building (S1). Specifically, as shown in Figure 27A, the worker, standing on scaffolding constructed by connecting a vertical pipe P1 and a horizontal pipe P2, attaches the first pivot structure 21 and the second pivot structure 166 to the vertical pipe P1.

[0156] The worker attaches and fixes the fixing part 158 ​​(Figures 14A, 14B) of the first support structure 21 to the vertical pipe P1, and attaches and fixes the fixing part 178 (Figures 15A, 15B) of the second support structure 166 to the vertical pipe P1. The first support structure 21 is positioned below the second support structure 166.

[0157] The workers then attach the central frame 38 to the scaffolding (S2). Specifically, as shown in Figure 27B, the third hinge structure 96 located at the lower end of the central frame 38 is connected to the second pivot structure 166, and the upper end of the central frame 38 is fixed to the vertical pipe P1.

[0158] When fixing the third hinge structure 96 to the second pivot structure 166, the gravity lock (Figure 15B) of the pivot portion 168 of the second pivot structure 166 is inserted into the through holes 130 and 132 (Figures 12A and 12B) of the connecting plates 126 and 128 of the third hinge structure 96. This pivots the lower end of the central frame 38 to the second pivot structure 166. When attaching the upper end of the central frame 38 to the vertical pipe P1, for example, a string member 180 is attached between the upper end of the central frame 38 and the vertical pipe P1.

[0159] The worker then attaches the diagonal members 12 between the central frame 38 and the scaffolding (S3). Specifically, as shown in Figure 27C, the connecting fitting 46 located at the upper end 12B of the diagonal member 12 is connected to the second hinge structure 94 of the central frame 38, and the connecting fitting 48 located at the lower end 12A of the diagonal member 12 is connected to the pivot portion 148 of the first pivot structure 21.

[0160] When connecting the connecting fitting 46 to the second hinge structure 94, the gravity lock (Figure 4) of the connecting fitting 46 is inserted through the through hole 116 (Figures 11A and 11B) of the connecting plate 114 of the second hinge structure 94.

[0161] When attaching the connecting fitting 48 to the pivot support 148, the gravity lock (Figure 14A) of the pivot support 148 is inserted through the through hole 50 (Figure 4) of the connecting fitting 48.

[0162] The worker then connects the left and right vertical frames 24 and 32 to the central vertical frame 38 (S4). Specifically, as shown in Figure 27D, the vertical frame 24 is connected to the vertical frame 26 of the central vertical frame 38, and the vertical frame 32 is connected to the vertical frame 34 of the central vertical frame 38.

[0163] When connecting the vertical frame 24 to the vertical frame 26, the vertical frame 24 is positioned by bringing it into contact with the vertical frame 26, and then the protruding portion 56 of the vertical frame 24 is inserted downward toward the receiving portion 84 of the vertical frame 26 (arrow A6). When connecting the vertical frame 32 to the vertical frame 34, the vertical frame 32 is positioned by bringing it into contact with the vertical frame 34, and then the protruding portion 64 of the vertical frame 32 is inserted downward toward the receiving portion 88 of the vertical frame 34 (arrow A7).

[0164] The method of connecting the vertical frames 24 and 26 with each other, and the vertical frames 32 and 34 with each other, using the connecting structure 200, is as explained using Figures 21 to 25, so a detailed explanation is omitted here.

[0165] As shown in Figure 27E, the worker rotates the frame 24 having the protrusion 56 away from the frame 26 (arrow R5), and rotates the frame 32 having the protrusion 64 in the direction of opening relative to the frame 34 (arrow R6). The worker uses the opening stoppers 134 and 136 to stop the frames 24 and 32 at predetermined rotational positions.

[0166] The worker then places the panels between the vertical frames (S5). Specifically, as shown in Figure 27F, panels 22A to 22D are inserted between vertical frames 24 and 26 (arrow A8), and panels 30A to 30D are inserted between vertical frames 32 and 34 (arrow A9).

[0167] When inserting panels 22A to 22D between vertical frames 24 and 26, insert them in the order of panels 22A, 22B, 22C, and 22D towards the connecting structure 200 that connects vertical frames 24 and 26, along the panel space 58 of vertical frame 24 and the panel space 85 of vertical frame 26. Similarly, when inserting panels 30A to 30D between vertical frames 32 and 34, insert them in the order of panels 30A, 30B, 30C, and 30D towards the connecting structure 200 that connects vertical frames 32 and 34, along the panel space 66 of vertical frame 32 and the panel space 90 of vertical frame 34.

[0168] As a result, as shown in Figure 27G, multiple panels 22A to 22D are held between the vertical frames 24 and 26, and multiple panels 30A to 30D are held between the vertical frames 32 and 34.

[0169] The worker then attaches the upper frames 28 and 36 of the panel units 4 and 6 (S6). Specifically, as shown in Figure 27H, the upper frame 28 is attached so as to cover the uppermost panel 22D of the multiple panels 22A to 22D. Similarly, the upper frame 36 is attached so as to cover the uppermost panel 30D of the multiple panels 30A to 30D. This completes the two panel units 4 and 6, which are rotatably held by the central vertical frame 38.

[0170] When installing the upper frame 28, the end of panel 22D is housed in the inner panel space of the upper frame 28, one end of the upper frame 28 is connected to the upper end of the vertical frame 24, and the other end of the upper frame 28 is connected to the upper end of the vertical frame 26. Similarly, when installing the upper frame 36, the end of panel 30D is housed in the inner panel space of the upper frame 36, one end of the upper frame 36 is connected to the upper end of the vertical frame 32, and the other end of the upper frame 36 is connected to the upper end of the vertical frame 34. Any method of connecting the upper frames 28 and 36, such as using bolts or claws, may be adopted.

[0171] The workers then attach diagonal members 14 and 16 between the panel units 4 and 6 and the scaffolding (S7). Specifically, as shown in Figure 27I, the connecting fitting 46 located at the upper end 14B of the diagonal member 14 is connected to the connecting fitting 54 of the vertical frame 24 that constitutes the panel unit 4, and the connecting fitting 48 located at the lower end 14A of the diagonal member 14 is connected to the pivot 150 of the first pivot structure 21 fixed to the scaffolding. Similarly, the connecting fitting 46 located at the upper end 16B of the diagonal member 16 is connected to the connecting fitting 62 of the vertical frame 32 that constitutes the panel unit 6, and the connecting fitting 48 located at the lower end 16A of the diagonal member 16 is connected to the pivot 152 of the first pivot structure 21 fixed to the scaffolding.

[0172] When attaching the upper end 14B of the diagonal member 14 to the connecting fitting 54, the gravity lock of the connecting fitting 46 of the diagonal member 14 is inserted into the through hole 76 (Figure 6) of the connecting plate 74 of the connecting fitting 54. Similarly, when attaching the upper end 16B of the diagonal member 16 to the connecting fitting 62, the gravity lock of the connecting fitting 46 of the diagonal member 16 is inserted into the through hole 76 (Figure 6) of the connecting plate 74 of the connecting fitting 62.

[0173] When attaching the lower end 14A of the diagonal member 14 to the pivot support 150, the gravity lock of the pivot support 150 is inserted into the through hole 50 (Figure 4) of the connecting fitting 48 of the diagonal member 14. Similarly, when attaching the lower end 16A of the diagonal member 16 to the pivot support 152, the gravity lock of the pivot support 152 is inserted into the through hole 50 (Figure 4) of the connecting fitting 48 of the diagonal member 16.

[0174] As a result, the two panel units 4 and 6, which are rotatably supported by the central vertical frame 38, are rotatably pivotally supported by the second pivot structure 166, and are supported from below by three diagonal members 12, 14, and 16.

[0175] The steps S4 to S7 described above can be performed separately for the left panel unit 4 and for assembling the right panel unit 6. For example, steps S4 to S7 for assembling the left panel unit 4 may be performed first, followed by steps S4 to S7 for assembling the right panel unit 6, or the order may be reversed.

[0176] The worker then extends the panel units 4 and 6 diagonally (S8). Specifically, one or more workers on the scaffolding remove the string member 180 shown in Figure 27I from the vertical pipe P1, and, by combining the string member 180 and other string members as appropriate, suspend the panel units 4 and 6 from above while pushing the upper ends of the panel units 4 and 6 forward (towards the front of the page).

[0177] Panel units 4 and 6, supported by the second pivot structure 166, rotate around the rotation axis C17 of the gravity lock (Figure 15B) of the pivot portion 168. Since the pivot portion 168 can rotate around a rotation axis C16 (Figure 15A) in a direction different from the rotation axis C17, the angle and position of the central frame 38 and panel units 4 and 6 supported by the pivot portion 168 can be flexibly adjusted.

[0178] Because the central vertical frame 38 has a hinge structure 40, when the panel units 4 and 6 are pushed forward, the relative angles of the panel units 4 and 6 can be adjusted according to their respective positions and angles.

[0179] Since the pivot points 148, 150, and 152 that support the diagonal members 12, 14, and 16 are each rotatable around the rotation axes C11, C12, and C13 (Figures 14A and 14B), the position and angle of the diagonal members 12, 14, and 16 can be flexibly adjusted. Even if the diagonal members 12, 14, and 16 are not extendable or retractable in the longitudinal direction L1, the panel units 4 and 6 can be deployed while the lengths of the diagonal members 12, 14, and 16 remain constant.

[0180] Subsequently, the panel units 4 and 6 are positioned by hooking the hooks 184 and 186 provided on the upper frames 28 and 36 of the panel units 4 and 6 onto the panel units 8 and 10 (not shown) for straight sections, respectively.

[0181] Finally, as shown in Figure 1, the panel units 4 and 6 are positioned at a predetermined angle of inclination from an upright position. The inclination angle of the panel units 4 and 6 can be set in, for example, one or more steps.

[0182] With the above configuration, the morning glory device 2 allows workers to easily unfold and install the panel units 4 and 6 when installing the morning glory device 2 at the corner of a building, thereby improving the work efficiency related to the installation of the corner morning glory device 2.

[0183] (Effect 1) As described above, the morning glory apparatus 2 of this embodiment includes a panel unit 4 (first panel unit) having at least one panel 22A to 22D and a rigid frame 24 (first rigid frame) and a rigid frame 26 (second rigid frame) surrounding the panel 22A to 22D, and a panel unit 6 (second panel unit) having at least one panel 30A to 30D and a rigid frame 32 (third rigid frame) and a rigid frame 34 (fourth rigid frame) surrounding the panel 30A to 30D. The structure comprises a panel unit, a hinge structure 40 that supports the adjacent upright frames 26 and 34 in a relative rotatable state, a diagonal member 12 (first diagonal member) connected between the hinge structure 40 and the scaffolding to support the hinge structure 40, a diagonal member 14 (second diagonal member) connected between the upright frame 24 and the scaffolding to support the upright frame 24, and a diagonal member 16 (third diagonal member) connected between the upright frame 32 and the scaffolding to support the upright frame 32.

[0184] With this configuration, the hinge structure 40 allows the opening angle between the panel units 4 and 6 to be adjusted, and the three diagonal members 12, 14, and 16 provide support, thereby improving work efficiency when installing two panel units 4 and 6 at an angle in the corner of a building. This improves the work efficiency related to the installation of the corner bellows device 2.

[0185] Furthermore, the morning glory device 2 of this embodiment further includes a first pivot structure 21 having a pivot portion 148 (first pivot portion) that rotatably pivots the lower end portion 12A of the diagonal member 12, a pivot portion 150 (second pivot portion) that rotatably pivots the lower end portion 14A of the diagonal member 14, and a pivot portion 152 (third pivot portion) that rotatably pivots the lower end portion 16A of the diagonal member 16. With this configuration, by rotatably pivoting the lower ends 12A, 14A, and 16A of the three diagonal members 12, 14, and 16, the movement of the two panel units 4 and 6 becomes smoother when installing them while tilted.

[0186] Furthermore, in the morning glory apparatus 2 of this embodiment, the first pivot structure 21 further has a first holding part 154 (holding part) that integrally holds pivot parts 148, 150, and 152. With this configuration, the three pivot parts 148, 150, and 152 can be handled integrally, improving the workability when handling the first pivot structure 21.

[0187] Furthermore, in the morning glory device 2 of this embodiment, the pivot support 148 is rotatable around a rotation axis C11 in a direction different from the rotation axis C8 of the lower end 12A of the diagonal member 12, the pivot support 150 is rotatable around a rotation axis C12 in a direction different from the rotation axis C9 of the lower end 14A of the diagonal member 14, and the pivot support 152 is rotatable around a rotation axis C13 in a direction different from the rotation axis C10 of the lower end 16A of the diagonal member 16. With this configuration, the three diagonal members 12, 14, and 16 supported by the pivot supports 148, 150, and 152 can be rotated in various directions, making it easier to adjust the angle and position of the panel units 4 and 6.

[0188] Furthermore, in the morning glory device 2 of this embodiment, the hinge structure 40 has a connecting plate 114 (fourth pivot) that rotatably pivots the upper end 12B of the diagonal member 12, the upright frame 24 has a connecting fitting 54 (fifth pivot) that rotatably pivots the upper end 14B of the diagonal member 14, and the upright frame 32 has a connecting fitting 62 (sixth pivot) that rotatably pivots the upper end 16B of the diagonal member 16. With this configuration, by rotatably pivoting the upper ends 12B, 14B, and 16B of the three diagonal members 12, 14, and 16, the movement of the panel units 4 and 6 becomes smoother when installing the two panel units 4 and 6 at an angle.

[0189] Furthermore, in the morning glory device 2 of this embodiment, the hinge structure 40, the frame 26, and the frame 34 constitute an integrated central frame 38. With this configuration, the hinge structure 40, the frame 26, and the frame 32 can be handled as a single unit, improving work efficiency.

[0190] Furthermore, in the morning glory device 2 of this embodiment, the hinge structure 40 includes a first hinge structure 92 that extends along the vertical frame 26 and vertical frame 34, and a second hinge structure 94 to which the upper end 12B of the diagonal member 12 is connected and which is connected between the vertical frame 26 and vertical frame 34. With this configuration, it is possible to stably support the vertical frame 26 and vertical frame 34 while improving the flexibility of the connection point of the upper end 12B of the diagonal member 12.

[0191] Furthermore, in the morning glory device 2 of this embodiment, the first hinge structure 92 has a single axis of rotation C1, and the second hinge structure 94 has at least two axes of rotation C4 and C5. With this configuration, the first hinge structure 92 with one axis stably supports the vertical frame 26 and the vertical frame 34, while the second hinge structure 94 with at least two axes flexibly supports the upper end 12B of the diagonal member 12, making it easier to adjust the angle and position of the diagonal member 12.

[0192] Furthermore, in the morning glory device 2 of this embodiment, the second hinge structure 94 has a connecting plate 114 (fourth pivot) that rotatably pivots the upper end portion 12B of the diagonal member 12. With this configuration, the angle of the diagonal member 12 can be easily adjusted.

[0193] Furthermore, in the morning glory device 2 of this embodiment, the hinge structure 40 further has a third hinge structure 96 that is connected to the scaffolding below the second hinge structure 94. With this configuration, the hinge structure 40 can be stably supported.

[0194] Furthermore, in the morning glory device 2 of this embodiment, the third hinge structure 96 is pivotally supported on the scaffolding so as to be rotatable. With this configuration, the tilt of the hinge structure 40 can be adjusted.

[0195] (Effect / Mechanism 2) As described above, the connecting structure 200 of this embodiment is a connecting structure for rotatably connecting a vertical frame 24 (first vertical frame) used in scaffolding to a vertical frame 26 (second vertical frame), and comprises a protruding portion 56 provided on the vertical frame 24 and a receiving portion 84 provided on the vertical frame 26 that rotatably receives the protruding portion 56, the protruding portion 56 having a first tip portion 216 having a first width L1 and a second portion 218 having a second width L2 shorter than the first width L1, and the receiving portion 84 is capable of inserting the protruding portion 56 The structure has an opening 205 and an inner circumferential surface 210 (arc surface) that extends in an arc shape at the back of the opening 205. The opening 205 has a first opening 212 having a first opening width D1 as the width along the direction of the central axis C20 of the arc of the inner circumferential surface 210, and a second opening 214A that is provided continuously with the first opening 212 and has a second opening width D2 that is shorter than the first opening width D1. The first opening width D1 is longer than the first width L1, and the second opening width D2 is shorter than the first width L1 and longer than the second width L2.

[0196] With this configuration, by inserting the first portion 216 of the projection 56 into the first opening 212, the tip of the projection 56 comes into contact with the inner circumferential surface 210, allowing the frame 24 to rotate along the inner circumferential surface 210. Since the width D2 of the second opening 214A is smaller than the width L1 of the first portion 216 of the projection 56, the frame 24 can be rotated while preventing the projection 56 from falling out as it passes through the second opening 214A. In this way, the two frame structures 24 and 26 can be easily connected to each other in a rotatable manner.

[0197] Furthermore, in the connecting structure 200 of this embodiment, the receiving portion 84 further has a first restricting wall 215 that closes the second opening 214A at a position opposite to the side adjacent to the first opening 212. With this configuration, the first restricting wall 215 can restrict further rotation of the frame 24, making it possible to keep the rotation range of the frame 24 within a predetermined range.

[0198] Furthermore, in the connecting structure 200 of this embodiment, the receiving portion 84 has a cylindrical portion 204 with an opening 205, and the inner circumferential surface 210 of the cylindrical portion 204 forms an arcuate surface. With such a configuration, the receiving portion 84 can be constructed with a simple structure.

[0199] Furthermore, in the connecting structure 200 of this embodiment, the opening 205 extends in an arc shape with respect to the central axis C20 of the inner circumferential surface 210. With this configuration, the shapes of the opening 205 and the inner circumferential surface 210 can be aligned, resulting in smoother rotation of the frame 24.

[0200] Furthermore, in the connecting structure 200 of this embodiment, the second opening 214A is longer than the first opening 212 in a cross-section perpendicular to the central axis C20 of the inner circumferential surface 210. With this configuration, the rotatable range of the vertical frame 24 can be increased.

[0201] Furthermore, in the connecting structure 200 of this embodiment, the opening 205 is further provided in continuity with respect to the first opening 212 on the opposite side from the second opening 214A, and has a third opening 214B having a third opening width D3 that is shorter than the first opening width D1, and the third opening width D3 is shorter than the first width L1 and longer than the second width L2. With such a configuration, the rotatable range of the vertical frame 24 can be increased.

[0202] Furthermore, in the connecting structure 200 of this embodiment, the second opening width D2 is the same as the third opening width D3. With this configuration, the shape of the opening 205 can be simplified by making the second opening width D2 and the third opening width D3 the same length.

[0203] Furthermore, in the connecting structure 200 of this embodiment, the receiving portion 84 further has a second restricting wall 217 that closes the third opening 214B at a position opposite to the side adjacent to the first opening 212. With this configuration, the second restricting wall 217 can restrict further rotation of the frame 24, making it possible to keep the rotation range of the frame 24 within a predetermined range.

[0204] Furthermore, the morning glory device 2 (scaffolding structure) of this embodiment includes a connecting structure 200 and vertical frames 24 and 26 connected to each other by the connecting structure 200. With this configuration, the two vertical frames 24 and 26 can be easily connected to each other in a rotatable manner.

[0205] Furthermore, in the morning glory device 2 of this embodiment, the vertical frame 24 and vertical frame 26 are a pair of vertical frames that surround at least one panel 22A to 22D, and are used as a corner morning glory device. With this configuration, the workability when installing the corner morning glory device 2 can be improved.

[0206] This disclosure is not limited to the embodiments described above, and can be implemented in various other forms. For example, although the embodiments described a case in which panel units 4 and 6 each have four panels 22A to 22D and 30A to 30D, the invention is not limited to this case, and each unit may have at least one panel.

[0207] Furthermore, although the embodiment described a case in which the connecting structure 200 rotatably connects the vertical frames 24, 26 of the panel unit 4 and the vertical frames 32, 34 of the panel unit 6 that constitute the corner morning glory device 2, it is not limited to this case. It is not limited to a pair of vertical frames that constitute the panel unit of the corner morning glory device, but can be broadly applied as a connecting structure that rotatably connects a first frame member used in scaffolding to a second frame member.

[0208] While this disclosure is adequately described in relation to preferred embodiments with reference to the accompanying drawings, various variations and modifications will be obvious to those skilled in the art. Such variations and modifications should be understood to be included within the scope of this disclosure as defined by the accompanying claims. Furthermore, changes in combinations and sequences of elements in the embodiments can be realized without departing from the scope and spirit of this disclosure. [Industrial applicability]

[0209] This disclosure is useful for corner prism devices installed on temporary scaffolding. [Explanation of symbols]

[0210] 2. Morning glory device (corner morning glory device) 4 Panel Unit 4 (First Panel Unit) 6 Panel Unit 6 (Second Panel Unit) 12 Diagonal member (1st diagonal member) 14 Diagonal member (second diagonal member) 16 Diagonal member (3rd diagonal member) 22A~22D Panel 24. Solid Slot (First Solid Slot) 26. Solid Slot (Second Solid Slot) 30A~30D Panel 32. Solid Slot (3rd Solid Slot) 40 Hinge structure 56 Protrusion 84 Receiving part 200 connection structure 205 Opening 210 Inner surface (circular arc surface) 212 First opening 214A 2nd opening 214B 3rd opening 216 Part 1 218 Part 2 D1 First opening width D2 Second opening width L1 First width L2 Second width

Claims

1. A first panel unit having at least one panel and a first and second rigid frame surrounding the panel, A second panel unit having at least one panel and a third and fourth rigid frame surrounding the panel, A hinge structure that supports the second and fourth vertical frames, which are arranged adjacent to each other, in a manner that allows them to rotate relative to each other, A first diagonal member connected between the hinge structure and the scaffolding so as to support the hinge structure, A second diagonal member connected between the first vertical frame and the scaffolding so as to support the first vertical frame, The structure comprises a third diagonal member connected between the third vertical frame and the scaffolding so as to support the third vertical frame, The support structure further comprises a first support that rotatably supports the lower end of the first diagonal member, a second support that rotatably supports the lower end of the second diagonal member, and a third support that rotatably supports the lower end of the third diagonal member. Corner bracket, wherein the first pivot is rotatable around a pivot in a direction different from the pivot at the lower end of the first diagonal member, the second pivot is rotatable around a pivot in a direction different from the pivot at the lower end of the second diagonal member, and the third pivot is rotatable around a pivot in a direction different from the pivot at the lower end of the third diagonal member.

2. The corner morning glory device according to claim 1, wherein the pivot support structure further has a holding portion that integrally holds the first pivot support, the second pivot support, and the third pivot support.

3. The corner support device according to claim 1, wherein the hinge structure has a fourth pivot that rotatably supports the upper end of the first diagonal member, the first vertical frame has a fifth pivot that rotatably supports the upper end of the second diagonal member, and the third vertical frame has a sixth pivot that rotatably supports the upper end of the third diagonal member.

4. The corner morning glory device according to claim 1, wherein the hinge structure, the second vertical frame, and the fourth vertical frame constitute an integrated central vertical frame.

5. A first panel unit having at least one panel and a first frame and a second frame surrounding the panel, A second panel unit having at least one panel and a third and fourth rigid frame surrounding the panel, A hinge structure that supports the second and fourth vertical frames, which are arranged adjacent to each other, in a manner that allows them to rotate relative to each other, A first diagonal member connected between the hinge structure and the scaffolding so as to support the hinge structure, A second diagonal member connected between the first vertical frame and the scaffolding so as to support the first vertical frame, The structure comprises a third diagonal member connected between the third vertical frame and the scaffolding so as to support the third vertical frame, The hinge structure comprises a first hinge structure extending along the second and fourth vertical frames, and a second hinge structure to which the upper end of the first diagonal member is connected and which is connected between the second and fourth vertical frames, for use as a corner hinge device.

6. The corner hinge device according to claim 5, wherein the first hinge structure has one axis of rotation, and the second hinge structure has at least two axes of rotation.

7. The corner hinge device according to claim 5, wherein the second hinge structure has a fourth pivot portion that rotatably pivots the upper end of the first diagonal member.

8. The corner hinge device according to claim 5, wherein the hinge structure further comprises a third hinge structure connected to the scaffolding below the second hinge structure.

9. The third hinge structure is rotatably pivoted on the scaffolding, as described in claim 8.

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