Safety device for exterior wall repair work

Abstract

To provide a disposable safety device that is easy to use and can avoid trouble of recovery.SOLUTION: A safety device for an outer wall repair device comprises: a rectangular bottom plate; a horizontal plate connected to a short side of the bottom plate so as to stand perpendicular to the bottom plate; and an outer wall material storage portion arranged on a scaffold side of the bottom plate. The outer wall material storage portion includes: a storage portion bottom plate; a storage portion horizontal plate connected to a short side of the storage portion bottom plate so as to stand perpendicular to the storage portion bottom plate; and a storage portion scaffold side plate connected to a scaffold side long side of the storage portion bottom plate so as to stand perpendicular to the storage portion bottom plate. The storage portion bottom plate is connected to a scaffold side long side of the bottom plate. The safety device for an outer wall repair device has a positioning plate connected to the scaffold side long side so as to extend approximately downwardly. A length of the short side of the bottom plate is selected to be longer than a distance between an outer wall and an outer wall side surface of a scaffold board.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention generally relates to a safety device used for exterior wall repair work for repairing the exterior wall of a building. More specifically, the present invention relates to a disposable safety device for exterior wall repair work that reduces the labor of work in exterior wall repair work, enables safe work, and reduces work time and work cost.

Background Art

[0002] In general, exterior wall repair work on an old building is carried out by a worker standing on a scaffold assembled around the exterior wall, removing old exterior wall materials such as tiles, and then attaching new exterior wall materials to the exterior wall. At this time, the old exterior wall materials removed from the exterior wall were once dropped onto the scaffold and then processed by cleaning. However, in such a working method, a safety net must be stretched around the scaffold so that the removed materials do not accidentally fall to the ground when removing the exterior wall materials, which is time-consuming and laborious for the work and also contributes to an increase in work cost.

[0003] In view of such a situation, the present inventor has proposed a safe safety device and an exterior wall repair method for exterior wall repair work on an old building that reduce the labor and reduce the work time and work cost (see Patent Documents 1 to 4). In addition, a disposable safety device for exterior wall repair work that can avoid the labor of collection has also been proposed (see Patent Document 5).

[0004]

Patent Document 1

Patent Document 2

Patent Document 3

Patent Document 4

Patent Document 5

Summary of the Invention

[0005] The safety devices and exterior wall repair methods described above have fortunately been well-received, and among them, the safety device for exterior wall repair described in Patent Document 5 is particularly popular because it is disposable, thus reducing labor costs.

[0006] The present invention was developed under these circumstances, and aims to provide a safety device for exterior wall repair work that is an improved version of the device proposed in Patent Document 5, making it easier to use. [Means for solving the problem]

[0007] The safety device for exterior wall repair work, installed between the exterior wall of a building and a work scaffolding as described in claim 1 of the present application, comprises an elongated rectangular base plate, a pair of horizontal plates connected to a pair of short sides of the base plate so as to be upright with respect to the base plate, and an exterior wall material storage section positioned on the scaffolding side of the base plate for storing the removed exterior wall material, wherein the exterior wall material storage section comprises an elongated rectangular storage section base plate, a pair of storage section horizontal plates connected to a pair of short sides of the storage section base plate so as to be upright with respect to the storage section base plate, and the storage section bottom so as to be upright with respect to the storage section base plate The scaffolding board has a storage scaffolding side plate connected to the long side of the board on the scaffolding side, and the storage bottom plate is further provided with a positioning plate connected to the long side of the scaffolding side so as to extend along the entire length of the long side of the scaffolding side and extending substantially downward with respect to the plane including the bottom plate, the length of the short side of the bottom plate is selected to be longer than the distance between the outer wall and the outer wall side of the scaffolding board, and the bottom plate, the side plate, the outer wall material storage section and the positioning plate are made of cardboard or corrugated cardboard.

[0008] The safety device described in claim 2 of this application is characterized in that, in the device of claim 1, the positioning plate is formed of a double plate that has been folded back.

[0009] The safety device described in claim 3 of this application is characterized in that, in the device of claim 1 or 2, it further comprises an outer wall contact plate made of cardboard or corrugated cardboard and connected to the long side of the outer wall of the bottom plate. [Effects of the Invention]

[0010] The safety device of the present invention is firmly fixed between the exterior wall and the scaffolding board, allowing for smooth work without worrying about the device shifting during operation. In the safety device of the present invention, the bottom plate 12 is inclined downward from the exterior wall, so the worker only needs to peel off the exterior wall material and drop it downwards at that position. The dropped exterior wall material is collected in the exterior wall material storage section 16, enabling efficient work. Furthermore, by providing the exterior wall contact plate 20, it is possible to reliably prevent the peeled exterior wall material from falling through the gap between the building and the exterior wall. Since the safety device of the present invention is made of cardboard or corrugated cardboard, it can be disposed of without any collection work. The safety device of the present invention is extremely easy to install, and compared to the conventional method of stretching safety nets around the scaffolding, it significantly reduces the effort and time required, as well as the work cost. Moreover, the safety device of the present invention is easy to carry and disposable, so it does not require a large storage space. [Brief explanation of the drawing]

[0011] [Figure 1] This is a perspective view of a safety device according to a preferred embodiment of the present invention. [Figure 2] Figure 1 is an exploded perspective view of the safety device. [Figure 3] Figure 1 is a side view of the safety device. [Figure 4] Figure 1 is an example of an exploded view of the safety device. [Figure 5] Figure 5(a) is a perspective view showing an example of the safety device in use in Figure 1, and Figure 5(b) is a schematic diagram illustrating the safety device in use in Figure 1. [Figure 6] Figure 1 is a side view showing an example of the safety device in use. [Modes for carrying out the invention]

[0012] Next, with reference to the drawings, a preferred embodiment of the safety device for exterior wall repair work (hereinafter referred to as the "safety device") will be described in detail. Figure 1 is a perspective view of the safety device (scaffolding boards are shown by dashed lines), and Figure 3 is a side view of the safety device of Figure 1.

[0013] In Figure 1, the safety device according to a preferred embodiment of the present invention, collectively indicated by reference numeral 10, comprises an elongated rectangular base plate 12 and a pair of horizontal plates 14 connected to a pair of short sides 12a of the base plate 12 so as to be upright with respect to the base plate 12. The length of the short sides 12a of the base plate 12 is selected to be longer than the distance L (see Figure 3) between the exterior wall of the building and the exterior wall side A of the scaffolding board (hereinafter referred to as the "exterior wall side").

[0014] The safety device 10 also includes an exterior wall material storage section 16 located on the scaffolding side of the base plate 12 for storing the removed exterior wall material. The exterior wall material storage section 16 has an elongated rectangular storage section base plate 16a, a pair of storage section side plates 16b connected to the pair of short sides of the storage section base plate 16a so as to be upright with respect to the storage section base plate 16a, and a storage section scaffolding side plate 16c connected to the long side of the storage section base plate 16a on the scaffolding side so as to be upright with respect to the storage section base plate 16a.

[0015] The bottom plate 16a of the exterior wall material storage section 16 is connected to the long side 12b of the bottom plate 12 on the scaffolding side and extends along the entire length of the long side 12b, so that the exterior wall material storage section 16 is shaped like a "U" when viewed from above.

[0016] A positioning plate 18 is connected to the long side 12b of the base plate 12 on the scaffolding side, extending almost downward relative to the plane containing the base plate 12. Here, "downward" means the direction that faces the ground when the safety device 10 is installed between the scaffolding board and the outer wall, as will be described later. The positioning plate 18 is useful for positioning the safety device 10 between the scaffolding board and the outer wall when installing the safety device 10.

[0017] The safety device 10 also includes a rectangular outer wall contact plate 20 connected to the outer wall side long side 12c of the bottom plate 12 and extending over the entire length of the outer wall side long side 12c. As will be described later, when performing outer wall repair work using the safety device 10, the outer wall contact plate 20 is brought into contact with the outer wall of the building to prevent fragments of the outer wall material from falling outside.

[0018] The bottom plate 12, the cross plate 14, the outer wall material storage part 16, the positioning plate 18, and the outer wall contact plate 20 that constitute the safety device 10 are formed of cardboard or corrugated cardboard.

[0019] For the safety device 10, for example, one as shown in FIG. 4 may be prepared, bent at a predetermined location during use, and formed by applying an adhesive to the flange and bonding. Alternatively, separate bottom plate 12, cross plate 14, outer wall material storage part 16, positioning plate 18, and outer wall contact plate 20 may be prepared respectively, assembled the plates, and joined using a tape or the like to form the safety device 10.

[0020] When the safety device 10 is formed as shown in FIG. 4, since the positioning plate 18 is folded back along the broken line, the positioning plate 18 is formed of double plates. Therefore, the thickness of the positioning plate 18 becomes twice that of other components, and the rigidity of the positioning plate 18 increases, so a more solid fixation between the outer wall of the safety device 10 and the scaffold board is expected.

[0021] Next, the use of the safety device 10 configured as described above will be explained, mainly with reference to Figures 3, 5, and 6. Figure 5(a) is a perspective view showing the safety device 10 installed in the space between the exterior wall of the building and the scaffolding board. First, the positioning plate 18 is brought into contact with the exterior wall side A of the scaffolding board (see Figure 3), and the exterior wall material housing section 16 is placed on top of the scaffolding board. Next, the exterior wall contact plate 20 is brought into contact with the exterior wall. As a result, since the length of the short side 12a of the bottom plate 12 is selected to be longer than the distance L between the exterior wall and the scaffolding board, the bottom plate 12 is tilted downward from the exterior wall toward the scaffolding board (exterior wall material housing section 16), as shown in Figure 3. Furthermore, because the base plate 12 is flexible in the out-of-plane direction (i.e., the base plate 12 can be bent out-of-plane), when the safety device 10 lightly pushes down on the base plate 12 (see dashed arrow in Figure 3), the base plate 12 bends downward (see dashed line in Figure 3), and the positioning plate 18 is pressed against the scaffolding board and the outer wall contact plate 20 is pressed against the outer wall, thus firmly fixing the scaffolding board between the outer wall and the scaffolding board.

[0022] Exterior wall repair work is carried out in this manner. The worker peels off the exterior wall material (for example, tiles) from the scaffolding board and drops it onto the base plate 12. Since the base plate 12 is inclined downward from the exterior wall toward the exterior wall material storage section 16, the exterior wall material hits the base plate 12 and slides down (see Figure 5(b)). In other words, the worker only needs to peel off the exterior wall material and drop it downwards from that position, and the dropped exterior wall material slides down the base plate 12 and accumulates in the exterior wall material storage section 16 at the worker's feet. At that time, since the exterior wall contact plate 20 is in contact with the exterior wall of the building, it is possible to prevent the peeled exterior wall material from falling to the outside through the gap between it and the exterior wall of the building. In addition, since the safety device 10 is firmly fixed between the exterior wall and the scaffolding board, the work can be carried out smoothly without worrying about the displacement of the safety device 10 during work, as is the case with the safety device described in Patent Document 5.

[0023] Once the repair work is completed, the safety device 10 containing the removed exterior wall material is lowered to the ground, the removed exterior wall material is disposed of in the designated location, and then the safety device 10 is dismantled and disposed of. In this way, repair work can be carried out quickly while ensuring safety.

[0024] The present invention is not limited to the embodiments described above, and it goes without saying that various modifications are possible within the scope of the invention as described in the claims, and these modifications are also included within the scope of the present invention.

[0025] For example, the dimensions and detailed shapes of the base plate 12, side plate 14, exterior wall material housing section 16, positioning plate 18, and exterior wall contact plate 20 shown in the illustration are illustrative and not limited to these. Furthermore, the exterior wall contact plate 20 may be omitted, allowing the longer side 12c of the base plate 12 on the exterior wall side to directly contact the exterior wall. [Explanation of symbols]

[0026] 10 Safety equipment 12 Bottom plate 12a Short side 12b Long side of the scaffolding 12c Long side of the exterior wall 14 Horizontal board 16 Exterior wall material housing section 16a Bottom plate of the storage section 16b Side panel of storage compartment 16c Storage area scaffolding side plate 18 Positioning plate 20 Exterior wall contact plate

Claims

1. A safety device for exterior wall repair work, installed between the exterior wall of a building and the scaffolding used for the work, A long, narrow rectangular base plate, A pair of horizontal boards are connected to the pair of short sides of the base plate so as to stand upright with respect to the base plate, The base plate is provided with an exterior wall material storage section arranged on the scaffolding side for storing the removed exterior wall material, the exterior wall material storage section having an elongated rectangular storage section base plate, a pair of storage section side plates connected to a pair of short sides of the storage section base plate so as to be upright with respect to the storage section base plate, and a storage section scaffolding side plate connected to the long side of the storage section base plate on the scaffolding side so as to be upright with respect to the storage section base plate, the storage section base plate being connected to the long side of the scaffolding side of the base plate and extending along the entire length of the long side of the scaffolding side, The scaffolding further comprises a positioning plate connected to the long side of the scaffolding so as to extend substantially downward with respect to the plane including the base plate, The length of the shorter side of the base plate is selected to be longer than the distance between the outer wall and the outer wall side of the scaffolding board. The apparatus is characterized in that the bottom plate, the side plate, the outer wall material housing section, and the positioning plate are made of cardboard or corrugated cardboard.

2. The apparatus according to claim 1, characterized in that the positioning plate is formed of a double plate that has been folded back.

3. The apparatus according to claim 1 or 2, further comprising an outer wall contact plate formed of cardboard or corrugated cardboard and connected to the long side of the outer wall of the bottom plate.

Images