Morning glory apparatus

Abstract

The present invention provides a morning glory-shaped device that is easy to handle and can easily seal the gap that occurs between the temporary scaffolding and the lower frame of the frame. [Solution] This morning glory device is installed on temporary scaffolding and comprises a frame whose lower end is fixed to the temporary scaffolding and which is configured to protrude diagonally upward from the temporary scaffolding, a surface material attached to the frame, a gap shielding plate that closes the gap between the lower frame of the frame and the temporary scaffolding, a flexible connecting member that connects the lower frame and the gap shielding plate, and a holding member provided on the gap shielding plate for detachably holding the gap shielding plate to the lower frame. The lower frame has a through hole on the temporary scaffolding side, one end of the connecting member is located inside the lower frame and is locked to the inner periphery of the through hole, and the other end is attached to one surface of the gap shielding plate, with the other surface of the gap shielding plate serving as a receiving surface for objects falling into the gap.

Description

Technical Field

[0001] The present invention relates to a morning glory device installed on a temporary scaffold for receiving falling objects at a building construction site or the like.

Background Art

[0002] Conventionally, morning glory devices have been installed on temporary scaffolds at construction sites or the like to receive falling objects such as materials and tools that fall from above the temporary scaffold. The morning glory device includes a frame body that projects obliquely upward from the temporary scaffold, and a surface material such as a sheet material or a panel material for receiving falling objects is attached inside the frame body, and the lower frame of the frame body is attached to the temporary scaffold. However, if there is a gap between the temporary scaffold and the lower frame of the frame body, even small falling objects may fall onto a road or the like through such a gap. Therefore, conventionally, it has been proposed to attach a shielding plate for closing the gap between the temporary scaffold and the lower frame of the frame body.

[0003] Patent Document 1 describes a morning glory device in which an extension plate (shielding plate) is attached to the lower frame of the frame body via a hinge to close the above-mentioned gap (paragraphs

[0063] to

[0065] ). Since the extension plate is attached to the lower frame via a hinge, the extension plate can be rotated onto the lower frame during non-use, storage, transportation, etc.

[0004] Patent Document 2 describes a morning glory device provided with a gap shielding plate for closing the gap between the lower frame of the frame body and the temporary scaffold, connecting this gap shielding plate to the lower frame of the frame body with a connecting material, and detachably holding it on the side surface of the lower frame with a holding material.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Patent Document 2

[0006] The object of the present invention is to provide a morning glory device that is easy to handle and can easily seal the gap that occurs between the temporary scaffolding and the lower frame of the frame. [Means for solving the problem]

[0007] The morning glory apparatus of the present invention is installed on temporary scaffolding and comprises a frame whose lower end is fixed to the temporary scaffolding and which is configured to protrude diagonally upward from the temporary scaffolding; a surface material attached to the frame; a gap shielding plate that closes the gap between the lower frame of the frame and the temporary scaffolding; a flexible connecting member that connects the lower frame and the gap shielding plate; and a holding member provided on the gap shielding plate for holding the gap shielding plate to the lower frame. The lower frame has a through hole on the temporary scaffolding side, one end of the connecting member is located inside the lower frame and is locked to the inner periphery of the through hole, and the other end is attached to one surface of the gap shielding plate, with the other surface of the gap shielding plate serving as a receiving surface for objects falling into the gap. [Effects of the Invention]

[0008] The morning glory apparatus of the present invention is easy to handle and has the effect of easily sealing the gap that occurs between the temporary scaffolding and the lower frame of the frame. [Brief explanation of the drawing]

[0009] [Figure 1] This is a perspective view showing the usage state of a morning glory apparatus according to one embodiment of the present invention. [Figure 2] Figure 1 is an exploded perspective view showing the lower frame of the frame that constitutes the morning glory apparatus. [Figure 3] This is a perspective view showing the assembled state of the lower frame of the frame. [Figure 4] Figure 3 shows an enlarged view of section M. [Figure 5] This is a side view showing the usage state of the holding material that makes up the morning glory apparatus in Figure 1. [Figure 6]This is a perspective view illustrating the method of attaching the lower frame to the temporary scaffolding. [Figure 7] This is a perspective view illustrating how to attach the sheet material to the lower frame. [Figure 8] (a) to (c) are perspective views illustrating how to use the gap shielding plate installed on the lower frame. [Figure 9] (a) to (c) are explanatory diagrams illustrating the configuration of the gap shielding plate. [Figure 10] This is an explanatory diagram showing the usage of the gap shielding plate. [Modes for carrying out the invention]

[0010] An embodiment of the morning glory apparatus of the present invention will be described below with reference to Figures 1 to 9. However, the figures referenced below are simplified representations of embodiments of the present invention for the sake of explanation and do not faithfully represent the dimensions of the actual components or their dimensional ratios. Furthermore, the morning glory apparatus of the present invention may include any components not shown in the figures.

[0011] Figure 1 shows the usage state of a morning glory device according to one embodiment of the present invention. As shown in Figure 1, the morning glory device 1 according to one embodiment of the present invention is installed on temporary scaffolding at construction or repair sites of medium- and high-rise buildings such as office buildings and condominiums to catch falling objects such as materials and tools. It comprises a frame 5 that is fixed at one end to the support column 2 of the temporary scaffolding by a frame fixing fitting 15 and protrudes diagonally upward, and a sheet material 10 (surface material) stretched inside the frame 5. The frame 5 comprises a vertical frame 51, a lower frame 52, and an upper frame 53.

[0012] As shown in Figure 1, multiple frames 5 to which the sheet material 10 is attached are arranged in a row on the outer surface of the temporary scaffolding and protrude diagonally upward from the temporary scaffolding when in use. The vertical frames 51 of the frame 5 are provided with hanging fittings 41 on the upper surface for connecting hanging materials 4 such as ropes that hold the frame 5 from above, and on the lower surface, diagonal member attachment fittings 33 and 34 are provided at both ends of the diagonal members 3 for attaching diagonal members 3 that support the frame 5 from below. The material of the frame body 5 is not particularly limited, but it is preferably lightweight and strong, and examples thereof include metals such as aluminum and steel.

[0013] FIG. 2 is an exploded perspective view showing the lower frame 52 in the present embodiment, FIG. 3 is a perspective view showing the assembled state of the lower frame 52, and FIG. 4 is an enlarged view of the M portion of FIG. 3. As shown in FIGS. 2 and 3, the lower frame 52 has a U-shaped cross section, and a gap shielding plate 6 for closing the gap with the temporary scaffold is disposed on the side surface. The lower frame 52 and the gap shielding plate 6 are connected by a flexible connecting member 7. The gap shielding plate 6 has a function of closing the gap generated between the lower frame 52 and the temporary scaffold and receiving falling objects. The gap shielding plate 6 is in a flat plate shape having at least the same length as the lower frame 52, and is made of a metal plate such as an aluminum plate or a steel plate.

[0014] As the connecting member 7, for example, a belt including a leather, cloth, rubber, synthetic resin having bendable flexibility, or a composite sheet material obtained by joining two or more of them is preferably used. The lower frame 52 has a through hole 12 in the side wall 52a on the temporary scaffold side. One end of the connecting member 7 is located inside the lower frame 52, drawn out through the through hole 12 to the outside, and the other end is attached to one surface of the gap shielding plate 6 by a rivet 14. A plurality of connecting members 7 may be arranged at predetermined intervals in the length direction of the lower frame 52. Although two connecting members 7 are shown in FIGS. 2 and 3, the present invention is not limited thereto.

[0015] As shown in FIG. 4 which is an enlarged view of the M portion of FIG. 3, a locking portion 8 is fixed to one end of the connecting member 7 by a rivet 13, and by locking this locking portion 8 to the inner peripheral edge of the through hole 12, the connecting member 7 is prevented from coming off the lower frame 52. The shape and material of the locking portion 8 are not particularly limited as long as it can be locked to the inner peripheral edge of the through hole 12. For example, various forms such as a plate shape and a rod shape are possible, and materials such as metal, resin, and wood can also be used.

[0016] A holding member 9 for detachably holding the gap shielding plate 6 to the side wall 52a of the lower frame 52 is provided on the gap shielding plate 6 (see FIGS. 2 and 3). The holding member 9 is made of an elastic member such as rubber. Thus, by utilizing the elasticity of the holding member 9, the gap shielding plate 6 can be detachably held to the outer surface of the side wall 52a. Specifically, as shown in FIG. 5, the holding member 9 includes an attachment portion 9a attached to one surface of the gap shielding plate 6, and a pressing portion 9b provided at the lower portion of the attachment portion 9a. The pressing portion 9b sandwiches the upper edge portion of the side wall 52a of the lower frame 52 together with the gap shielding plate 6 and presses and holds the gap shielding plate 6 to the outer surface of the side wall 52a. The attachment portion 9a and the pressing portion 9b are integrally formed. The holding member 9 is attached to the gap shielding plate 6 by a rivet 22 at the attachment portion 9a.

[0017] A contact portion 91 that contacts the side wall 52a of the lower frame 52 protrudes from the pressing portion 9b. The contact portion 91 is a ridge extending in the length direction of the holding member 9 and is composed of a plurality of steps (two steps in this embodiment). Thus, the holding member 9 has improved elastic force and the warpage increases by the height of the contact portion 91, so it is pressed against the side wall 52a of the lower frame 52 with a strong elastic force, and the gap shielding plate 6 can be firmly held without accidentally coming off. On the other hand, since the gap shielding plate 6 is only held to the side wall 52a by elastic force, it can be easily and quickly removed by hand without using a special jig. Therefore, the installation of the morning glory device 1 becomes easy.

[0018] Next, the assembly method of the morning glory apparatus 1 of this embodiment will be described. First, as shown in Figure 6, the lower frame 52 is attached to each of the two support columns 2 of the temporary scaffolding using frame fixing brackets 15. The frame fixing bracket 15 comprises, for example, a clamp 16 that is installed between two adjacent frame bodies 5, 5 via the support column 2 and fixed to the support column 2, a mounting portion 23 that rises vertically from the clamp 16 in the axial direction of the support column 2, and two frame mounting portions 17, 17 attached to the tip of the mounting portion 23. The frame mounting portions 17, 17 consist of a wide first U-shaped portion 17a and a second U-shaped portion 17b that is narrower than the first U-shaped portion 17a and fixed within the first U-shaped portion 17a by welding or the like. Each first U-shaped portion 17a and the second U-shaped portion 17b has a through hole 20 that communicates with each other. The two U-shaped frame mounting sections 17, 17 are used to attach two adjacent frame sections 5, 5 to each other. Alternatively, instead of the second U-shaped section 17b, a plate may be erected on the first U-shaped section 17a by welding or other means.

[0019] The lower frame 52 has a frame rotation fitting 19 attached to its bottom. This frame rotation fitting 19 is an L-shaped metal plate attached to both ends of the frame 5, and has a through hole 21 in the downward-facing piece (see Figures 2 and 3). The gravity pin 18 is inserted through this through hole 21 to align with the through hole 20 of the frame mounting part 17, and the lower frame 52 is attached to the support column 2. The attached lower frame 52 can rotate vertically around the gravity pin 18 through the through holes 20 and 21. In Figure 6, reference numeral 24 indicates a string material for preventing the loss of the gravity pin 18, with one end of this string material attached to the gravity pin 18 and the other end attached to the first U-shaped part 17a.

[0020] The rotating fittings 19 of each of the two adjacent frame bodies 5, 5 are fixed to the respective frame mounting parts 17, 17 with gravity pins 18. In this case, it is preferable that the adjacent frame bodies 5, 5 have a predetermined gap (for example, a gap of 29 cm). This gap is to prevent the adjacent frame bodies from coming into contact with each other and being damaged during strong winds, etc.

[0021] After the lower frame 52 is installed, vertical frames 51, 51 are erected at both ends of the lower frame 52 as shown in Figure 7, and the sheet material 10 is stretched between the vertical frames 51, 51. The sheet material 10 serves to catch falling objects. The sheet material 10 is stretched between two cylindrical or columnar support members (not shown), and each support member is housed and held within the vertical frames 51, 51. The vertical frames 51 have a lip-groove cross section, and the support members are housed inside. The two vertical frames 51, 51 with lip-groove cross sections have openings on their opposing surfaces, and the sheet material 10 is stretched between the vertical frames 51, 51 through these openings. As the sheet material 10, for example, a flexible sheet made by laminating a fiber sheet and a synthetic resin can be used, specifically, a tarpaulin made by laminating a polyvinyl chloride resin onto a polyester fabric. The morning glory device 1 with the sheet material 10 attached has the advantage of being lightweight and easy to install, carry, and store. Furthermore, a morning glory apparatus using sheet material 10 as a facing material is described, for example, in Utility Model Registration No. 3194130.

[0022] The vertical frame 51, which houses the support material covered with the aforementioned sheet material 10, has its lower end attached (inserted or externally fitted) to square pipes 54 erected near both ends of the lower frame 52. The vertical frame 51 is fixed by screwing bolts 57, which are inserted through bolt insertion holes 56 provided in bolt receiving brackets 55 erected at both ends of the lower frame 52 by welding or the like, into bolt holes 58 provided in the vertical frame 51. Square pipes 54 are also provided in the upper frame 53, and the upper end of the vertical frame 51 is fixed and held in place in the same manner as in the lower frame 52. In this way, the morning glory apparatus 1 is obtained.

[0023] Next, the method of using the gap shielding plate 6 in this embodiment will be explained based on Figures 8 to 10. Note that Figures 9(a) to 9(c) are for the purpose of simply explaining the operation of the gap shielding plate 6 shown in Figures 8(a) to 9(c), and the retaining material 9 is omitted. To deploy the gap shielding plate 6, in the state shown in Figures 8(a) and 9(a), remove the retaining member 9 from the lower frame 52 and rotate the gap shielding plate 6 in the direction of arrow A. The rotated form is shown in Figures 8(b) and 9(b). Next, from this state, invert the gap shielding plate 6 in the direction of arrow B (Figures 8(c) and 9(c)).

[0024] As a result, as shown in Figures 8(c) and 9(c), the gap shielding plate 6 extends outward from the side wall 52a of the lower frame 52. The width of the gap shielding plate 6 is sufficient to cover the gap 11 (see Figure 10) that occurs between the lower frame 52 of the frame body 5 and the outer surface of the temporary scaffolding, and the width of the gap shielding plate 6 and the position of the rivets 14 must be set so that there is no gap between the side wall 52a of the lower frame 52 and the gap shielding plate 6. At this time, as shown in Figures 9(b) and (c), it is preferable that the length L from the rivet 14 to the tip of the gap shielding plate 6 be equal to the length of the connecting member 7 from the side wall 52a of the lower frame 52 to the rivet 14.

[0025] Furthermore, as shown in Figure 9(b), in the operating state, one surface 6a of the gap shielding plate 6 to which one end of the connecting member 7 is attached is located on the lower side of the gap shielding plate 6, and the other surface 6b of the gap shielding plate 6 becomes the receiving surface for objects falling into the gap. This prevents the connecting member 7 from being damaged by falling objects.

[0026] Figure 10 shows the state in which the gap shielding plate 6 is used. As shown in the figure, in order to close the gap 11 that occurs between the lower frame 52 of the frame 5 and the outer surface 102 of the temporary scaffolding, as shown in Figures 8(c) and 9(c), the gap shielding plate 6 should be reversed in the direction of arrow B so that the tip of the gap shielding plate 6 comes into contact with the outer surface 102 of the temporary scaffolding. This prevents objects falling from above from passing through the gap 11, thereby increasing safety. Incidentally, depending on the site, protective frames or soundproofing panels may be attached to the outer surface 102 of the temporary scaffolding, and as a result, the width of the gap 11 between the lower frame 52 of the frame body 5 and the outer surface 102 of the temporary scaffolding may change. Even in such cases, in this embodiment, the gap shielding plate 6 is simply inverted and its tip is brought into contact with the outer surface 102 of the temporary scaffolding, so the gap 11 can be reliably sealed.

[0027] Although embodiments of the present invention have been described above, the present invention is not limited to the above embodiments, and various modifications and improvements are possible within the scope of the present invention. For example, in the above embodiments, a sheet material 10 was used as the facing material attached to the frame, but a facing material made of fiber-reinforced plastic or the like may be used instead of the sheet material 10. A morning glory apparatus using such a facing material is described, for example, in Japanese Utility Model Publication No. 7-42843. [Explanation of symbols]

[0028] 1 Morning glory apparatus 2 pillars 3 Diagonals 33, 34 Brackets for attaching diagonal braces 4 Hanging materials 41 Hanging hardware 5 Frame 51 Vertical frame 52 Bottom frame 52a side wall 53 Upper frame 6. Gap shielding plate 6a One side 6b The other surface 7. Connecting material 8 Locking part 9 Holding material 9a Mounting part 9b Pressing part 91 Holding material 91a Stepped section 10 Sheet material (surface material) 11 gaps 12 Through holes 13 rivets 14 rivets 15 Frame fixing brackets 16 clamps 17 Frame mounting section 18 Gravity Pins 19. Frame Rotating Mechanism 20, 21 Through holes 22 rivets 23 Mounting part 54 square pipe 55 Bolt mounting bracket 56 Bolt insertion holes 57 volts 58 bolt holes 102 Outer surface of temporary scaffolding

Claims

1. A morning glory device installed on temporary scaffolding, A frame is configured such that its lower end is fixed to the temporary scaffolding and it protrudes diagonally upward from the temporary scaffolding, A facing material attached to the frame, A gap-blocking plate that seals the gap between the lower frame of the frame and the temporary scaffolding, A flexible connecting member that connects the lower frame and the gap shielding plate, A retaining member provided on the gap shielding plate for holding the gap shielding plate to the lower frame, Equipped with, The lower frame has a through hole on the temporary scaffolding side, The connecting member has one end located within the lower frame and locked to the inner periphery of the through hole, and the other end attached to one side of the gap shielding plate. A morning glory apparatus in which the other surface of the gap shielding plate serves as a receiving surface for objects falling into the gap.

2. The morning glory apparatus according to claim 1, wherein the connecting material is a belt containing flexible leather, cloth, rubber, synthetic resin, or a composite sheet material formed by joining two or more of these.

3. The retaining material is made of an elastic material, A mounting portion attached to one side of the gap shielding plate, A pressing portion is provided at the lower part of the mounting portion, which clamps the upper edge of the side wall of the lower frame together with the gap shielding plate and presses the gap shielding plate against the outer surface of the side wall, A morning glory apparatus according to claim 1 or 2, comprising:

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