JP6305211B2 - Safety device for exterior wall repair work - Google Patents

Description

  The present invention generally relates to a safety device used for repairing an outer wall when repairing an outer wall of a building. More particularly, the present invention relates to a disposable outer wall repair work safety device that reduces the labor of work in outer wall repair work, enables safe work, and reduces work time and work cost.

  In general, external wall repair work in old buildings is carried out by placing an operator on a scaffolding built around the outer wall, peeling off the old outer wall material such as tiles, and then applying a new outer wall material to the outer wall. It is done by construction. At this time, the old outer wall material peeled off from the outer wall was once dropped on the scaffold and then processed by cleaning, but in such a working method, the removal material was mistaken when peeling the outer wall material. Therefore, a safety net has to be stretched around the scaffolding so that it does not fall on the ground, and there are various inconveniences such as time and labor for the work and a cause for increasing the work cost.

  In view of such a current situation, the present inventor has proposed a safe outer wall repair work safety device and an outer wall repair method that reduce the time and labor cost in repairing an outer wall of an old building ( (See Patent Documents 1 to 4).

Japanese Patent No. 3446958 Japanese Patent No. 4360494 Japanese Patent No. 4640949 Japanese Patent No. 5382901

  Fortunately, the above-mentioned safety devices and repair methods for external wall repair work have been well received. However, these safety devices and repair methods require time and effort to recover and store the equipment after the construction is completed. There was an inconvenience that it took. Accordingly, the present inventor newly developed a disposable safety device for repairing an outer wall that can avoid the trouble of collection.

  The outer wall repair work safety device according to claim 1 includes an elongated rectangular bottom plate and a pair of lateral plates respectively connected to a pair of short sides of the bottom plate so as to stand upright with respect to the bottom plate, Each of the horizontal plates has a lower side and an upper side parallel to each other, a first oblique side connecting one end of the lower side and one end of the upper side, and a second oblique side connecting the other end of the lower side and the other end of the upper side, An angle α formed between the straight line including the lower side and the first hypotenuse is formed in an inverted trapezoidal shape smaller than an angle β formed between the straight line and the second hypotenuse, and one long side and a pair of the bottom plate And a scaffold side plate connected to the other long side of the bottom plate and a pair of the second oblique sides, the bottom plate, the horizontal plate, and the building side plate. And the scaffold side plate is made of paperboard or cardboard. It is characterized by.

  The safety device for external wall repair work according to claim 2 of the present application is characterized in that, in the safety device of claim 1, the angle α is 30 degrees to 40 degrees and the angle β is 70 degrees to 90 degrees. Is.

The safety device for external wall repair work according to claim 3 of the present application is the safety device according to claim 1 or 2, wherein a rectangular outer wall contact plate formed of paperboard or cardboard and connected to a long side of the building side plate is used. Furthermore, it is characterized by providing.

  According to the safety device of the present invention, since the building side plate is formed with a gentle slope, an efficient repair work can be performed. That is, the worker only has to peel off the outer wall material and drop it down as it is, and the dropped outer wall material slides down the building side plate and is accumulated on the operator's feet. Further, by providing the outer wall contact plate, it is possible to reliably prevent the peeled outer wall material from falling from the gap between the building and the outer wall. Since the safety device of the present invention is formed of paperboard or cardboard, it can be discarded without performing a recovery operation. In addition, the safety device of the present invention is extremely easy to install, and compared with the conventional method of placing a safety net around the scaffold, the labor and time can be greatly reduced and the work cost can be reduced. it can. Furthermore, since the safety device of the present invention is easy to carry and can be disposable, it does not require a large storage space.

1 is a perspective view of a safety device according to a preferred embodiment of the present invention. It is a disassembled perspective view of the safety device of FIG. It is a side view of the safety device of FIG. It is an example of the expanded view of the safety device of FIG. FIG. 5A is a perspective view showing an example of the usage state of the safety device of FIG. 1, and FIG. 5B is a schematic diagram for explaining the usage state of the safety device of FIG. It is the front view which showed the example of the use condition of the safety device of FIG.

  Next, a safety device for external wall repair work (hereinafter referred to as “safety device”) according to a preferred embodiment of the present invention will be described in detail with reference to the drawings. FIG. 1 is a perspective view of the safety device, and FIG. 3 is a side view of the safety device of FIG. A safety device according to a preferred embodiment of the present invention generally indicated by reference numeral 10 in FIG. 1 is provided with an elongated rectangular bottom plate 12 and a pair of short sides 12a of the bottom plate 12 so as to stand upright with respect to the bottom plate 12, respectively. And a pair of connected horizontal plates 14.

  Each horizontal plate 14 has an inverted trapezoidal shape in which a trapezoid is inverted. That is, as best shown in FIG. 3, each horizontal plate 14 includes a lower side 14a and an upper side 14b that are parallel to each other, a first oblique side 14c that connects one end of the lower side 14a and one end of the upper side 14b, and the other end of the lower side 14a. And a second oblique side 14d connecting the other end of the upper side 14b. An angle α formed by the straight line xx including the lower side 14a and the first hypotenuse 14c is smaller than an angle β formed by the straight line xx and the second hypotenuse 14d. Therefore, the second hypotenuse 14d is steeper than the first hypotenuse 14c, and the angle β may be 90 degrees. Preferably, angle α is about 30 degrees to about 40 degrees and angle β is about 70 degrees to about 90 degrees.

The safety device 10 also includes a building side plate 16 connected to each of the long side 12b of the bottom plate 12 and the first oblique side 14c of the horizontal plate 14, and the second long side 12b of the bottom plate 12 and the second side of the horizontal plate 14. And a scaffold side plate 18 connected to each of the oblique sides 14d.

  Preferably, the safety device 10 includes a rectangular outer wall contact plate 20 connected to the long side 16 a of the building side plate 16. As will be described later, the outer wall contact plate 20 is brought into contact with the outer wall of the building and prevents fragments of the outer wall material from falling outside when the outer wall repair work is performed using the safety device 10.

  With the above configuration, the safety device 10 is a long and narrow box whose upper part is open and whose front and rear surfaces are inclined.

The bottom plate 12, the lateral plate 14, the building side plate 16, the scaffold side plate 18 and the outer wall contact plate 20 constituting the safety device 10 are formed of paperboard or cardboard.

The safety device 10 constituted by the bottom plate 12, the lateral plate 14, the building side plate 16, the scaffolding side plate 18 and the outer wall contact plate 20 is prepared, for example, as shown in FIG. You may form by apply | coating an adhesive agent and adhering. Alternatively, separate bottom plate 12, horizontal plate 14, building side plate 16, scaffolding side plate 18 and outer wall contact plate 20 are prepared, and each plate is assembled and joined using tape or the like to form safety device 10. May be.

  Next, the use of the safety device 10 configured as described above will be described mainly with reference to FIGS. 5 and 6. Fig.5 (a) is the perspective view which showed the state in which the safety device 10 is installed on the scaffold. First of all, a scaffold will be placed in front of the outer wall of the building that will be repaired. Then, the safety plate 10 is placed on the floor portion of the scaffold at a height where the outer wall material (for example, tile) is to be peeled, with the outer wall contact plate 20 in contact with the outer wall of the building portion. Is installed. By bringing the outer wall contact plate 20 into contact with the outer wall of the building part, the building side plate 16 is located on the building side, and the scaffold side plate 18 is located on the side farther from the building. Thereby, a box-shaped space (safety device 10) surrounded by the bottom plate 12, the lateral plate 14, the building side plate 16 and the scaffold side plate 18 is formed on the front surface of the outer wall of the building to be repaired. It will be.

In such a state, the outer wall repair work is performed. When the peeled outer wall material is dropped downward, the building side plate 16 is formed with a gentle inclination, so that the outer wall material hits the building side plate 16 and slides down to the bottom plate 12 (see FIG. 5B). That is, the worker only has to peel off the outer wall material and drop it down as it is, and the dropped outer wall material slides down the building side plate 16 and is accumulated on the operator's feet. At that time, since the outer wall contact plate 20 is in contact with the outer wall of the building portion, it is possible to prevent the peeled outer wall material from dropping from the gap between the building and the outer wall. In addition, when an operator puts one foot on the bottom plate 12 and works while pressing the safety device 10 (see FIG. 6), the safety device 10 is not displaced and the work can be smoothly performed. When the repair work is completed, the safety device 10 containing the peeled outer wall material is lowered to the ground, and the peeled outer wall material is discarded at a predetermined location, and then the safety device 10 is disassembled and discarded. In this way, repair work can be performed quickly while ensuring safety.

  The present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the invention described in the claims, and these are also included in the scope of the present invention. Needless to say, it is something.

  For example, the dimensions of the illustrated plates 12, 14, 16, 18, and 20 are illustrative and are not limited thereto.

DESCRIPTION OF SYMBOLS 10 Safety device for outer wall repair work 12 Bottom plate 12a Short side 12b Long side 14 Horizontal plate 14a Lower side 14b Upper side 14c First inclined side 14d Second inclined side 16 Building side plate 18 Scaffolding side plate 20 Outer wall contact plate

Claims (3)

A safety device for exterior wall repair work used when renovating the exterior wall of a building,
An elongated rectangular bottom plate;
A pair of horizontal plates respectively connected to a pair of short sides of the bottom plate so as to stand upright with respect to the bottom plate, each of the horizontal plates being parallel to each other, a lower side and an upper side, one end of the lower side and the upper side A first oblique side connecting one end of the lower side and a second oblique side connecting the other end of the lower side and the other end of the upper side, and an angle α between the straight line including the lower side and the first oblique side is an angle between the straight line and the first side. 2 It is formed in an inverted trapezoidal shape smaller than the angle β formed with the hypotenuse,
A building side plate connected to one long side of the bottom plate and the pair of first oblique sides;
A scaffold side plate connected to the other long side of the bottom plate and the pair of second oblique sides;
The apparatus, wherein the bottom plate, the horizontal plate, the building side plate, and the scaffold side plate are formed of paperboard or cardboard.   The apparatus according to claim 1, wherein the angle α is 30 degrees to 40 degrees, and the angle β is 70 degrees to 90 degrees. The apparatus according to claim 1, further comprising a rectangular outer wall contact plate formed of paperboard or cardboard and connected to a long side of the building side plate.

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