JP6661482B2 - Safety device for exterior wall repair work using gondola - Google Patents

Description

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

  In general, the outer wall repair work on old buildings is performed by placing a worker on a scaffold assembled around the outer wall, peeling off the old outer wall material such as tiles, and then attaching 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 treated by cleaning.However, in such a work method, when removing the outer wall material, the removed material was incorrectly removed. It is necessary to stretch a safety net around the scaffold so as not to fall on the ground, and there are various inconveniences, such as a troublesome and time-consuming work and an increase in work cost.

  In view of such a current situation, the present inventor has proposed a safe outer wall repairing safety device and an outer wall repairing method that reduce labor and time required for the outer wall repairing work of an old building and reduce work time and work cost. (See Patent Documents 1 to 4). In addition, a disposable safety device for repairing an outer wall capable of avoiding the trouble of recovery has been proposed (see Patent Document 5).

Japanese Patent No. 3446958 Japanese Patent No. 4360494 Japanese Patent No. 4640949 Japanese Patent No. 5382901 JP 2015-224462 A

  Fortunately, the above-described safety device for outer wall repair work and the outer wall repair method have been well received. On the other hand, with the rise of buildings, the use of gondola in exterior wall repair work is increasing. Gondola work has the advantage that it is not necessary to assemble the scaffold from the ground, but also has the disadvantage that the gondola shakes during the work.

  The present invention has been developed in such a situation, and an object of the present invention is to provide a disposable outer wall repairing safety device that is particularly intended for gondola work and can avoid the trouble of collection. And

  A safety device for repairing an outer wall using a gondola according to claim 1 of the present application has a box having an elongated rectangular bottom plate, a pair of long side direction side plates, and a pair of short side direction side plates, and an open top surface. And a rectangular outer wall contact plate connected to an upper edge of the long side direction side plate located on the side of the building among the long side direction side plates and extending over the entire length of the long side direction side plate; and A plurality of rubber bands for pulling the board downward, wherein the main body and the outer wall contact plate are formed of paperboard or corrugated cardboard, and the outer wall contact plate projects toward a building, By placing the inside of the gondola, even if the gondola swings in the horizontal direction during the outer wall repair work, the tip of the outer wall contact plate is configured to always contact the outer wall of the building. is there.

  A safety device according to a second aspect of the present invention is the safety device according to the first aspect, wherein the rubber band is configured to be removable.

  A safety device according to a third aspect of the present invention is the safety device according to the first or second aspect, further comprising a reinforcing piece for reinforcing a connection between the main body and the outer wall contact plate. is there.

  According to the safety device of the present invention, even when the gondola shakes in the horizontal direction during the outer wall repair work, the tip of the outer wall contact plate is always in contact with the outer wall of the building, so that the peeled outer wall material and the building Dropping from the gap between the outer wall and the outer wall can be reliably prevented, and efficient repair work can be performed. Since the safety device of the present invention is formed of paperboard or cardboard, it can be discarded without performing a recovery operation. Further, by making the rubber band removable, handling of storage and transportation is further facilitated. Further, by providing the reinforcing piece, a strong structure can be obtained even if the reinforcing piece is made of paperboard or cardboard. The safety device of the present invention is extremely easy to install, and can greatly reduce labor and time as well as work costs as compared with the conventional method of laying a safety net around a scaffold. Furthermore, the safety device of the present invention is easy to carry and disposable, so that 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 as viewed from above. It is the perspective view which looked up at the safety device of FIG. 1 from the lower part. It is an exploded perspective view of the safety device of FIG. 4 (a) and 4 (b) are enlarged views of the portion 4a of FIG. 1, FIGS. 4 (c) and 4 (d) are enlarged views of the portion 4c of FIG. 2, and FIG. 4 (e) is FIG. It is an enlarged view of the part 4e. FIG. 2 is a development view of the safety device of FIG. 1. FIG. 2 is a side view illustrating an example of a use state of the safety device of FIG. 1. It is another side view which showed the example of the use condition of the safety device of FIG.

  Next, a safety device according to a preferred embodiment of the present invention will be described in detail with reference to the drawings. 1 is a perspective view of the safety device viewed from above, FIG. 2 is a perspective view of the safety device viewed from below, and FIG. 3 is an exploded perspective view of the safety device of FIG. (Not shown). A safety device according to a preferred embodiment of the present invention, generally indicated by reference numeral 10 in FIG. 1, includes an elongated box-shaped main body 12 having an open upper surface. The main body 12 has an elongated rectangular bottom plate 12a, a pair of long side direction side plates 12b and 12c, and a pair of short side direction side plates 12d and 12e, and an opening 12a1 is provided substantially at the center of the bottom plate 12a. ing.

  Preferably, a lid (not shown) may be provided on the opening 12a1 of the bottom plate 12a of the main body 12 so that the lid can be opened and closed. Also, preferably, the long side direction side plate 12c is reinforced by a reinforcing plate 12c1. The reinforcing plate 12c1 is, for example, a sheet of cardboard or cardboard of an appropriate size attached to the outer surface of the long side plate 12c.

  The safety device 10 also includes a rectangular outer wall contact plate 14 connected to the upper edge of the long side plate 12b located on the side of the building and extending over the entire length of the long side plate 12b. As will be described later, the outer wall contact plate 14 is brought into contact with the outer wall of the building to prevent fragments of the outer wall material from falling to the outside when performing the outer wall repair work using the safety device 10.

  Preferably, an elongated rectangular contact piece 14a extending over the entire length of the outer wall contact plate 14 is connected to a side of the outer wall contact plate 14 located on the building side. The contact pieces 14a help the outer wall contact plate 14 to be closer to the outer wall of the building.

  Also, preferably, the side walls 14b and 14c of the outer wall contact plate 14 are connected to the sides orthogonal to the building, respectively. The contact plate side walls 14b and 14c help prevent fragments of the outer wall material from falling off the side of the safety device 10 during outer wall repair work. The contact plate side walls 14b and 14c are provided with notches 14b1 and 14c1, respectively, for avoiding interference with the horizontal bar of the gondola (see FIGS. 6A and 6B). As best shown in FIG. 3, the end portions of the contact plate side walls 14b and 14c are extended toward the main body 12, and the partition plates 12d1 and 12e1 provided adjacent to the short side direction side plates 12d and 12e of the main body 12 are short. By inserting the extended portions of the contact plate side walls 14b, 14c into the gaps between the side direction side plates 12d, 12e, the safety device 10 can be firmly assembled. In order to make the safety device 10 more rigid, the contact plate side walls 14b and 14c may be double-sticked.

  Preferably, an elongated rectangular small piece 16 extending over the entire length of the long side direction side plate 12c is connected to the upper edge of the long side direction side plate 12c located on the side of the gondola of the main body 12. The small pieces 16 help prevent fragments of the outer wall material from falling into the gondola.

  The main body 12, the outer wall contact plate 14, the contact piece 14a, the contact plate side walls 14b and 14c, and the small piece 16 that constitute the safety device 10 are formed of paperboard or cardboard.

  Preferably, a reinforcing piece 18 for reinforcing the connection between the main body 12 and the outer wall contact plate 14 is provided. As shown in FIG. 4 (e), the reinforcing piece 18 fixes one end of a member formed of paperboard or cardboard to a proper position of the main body 12 (the bottom plate 12a in FIG. 4 (e)), and connects the other end of the member. The outer wall contact plate 14 is fixed to an appropriate position (an end adjacent to the main body 12 in FIG. 4E). For fixing the reinforcing piece 18, an adhesive may be used, or an appropriate stapler may be used.

  The safety device 10 further includes a plurality (two in FIG. 1) of rubber bands 20 for pulling the outer wall contact plate 14 downward. As shown in FIG. 1, each rubber band 20 has one end attached to a proper position of the main body 12 and the other end attached to a proper position of the outer wall contact plate 14.

  FIG. 4A to FIG. 4D are views showing a mounting portion of the rubber band 20. More specifically, FIG. 4A is a diagram illustrating a portion where the rubber band 20 is attached to the main body 12. That is, one end of the rubber band 20 is attached to the main body 12 by hooking the hook 20a at one end of the rubber band 20 in the gap between the long side direction side plate 12c of the main body 12 and the reinforcing plate 12c1 (FIG. 4). FIG. 4B is a view showing a state where the rubber band 20 is removed in FIG. FIG. 4C is a diagram showing a portion where the rubber band 20 is attached to the outer wall contact plate 14. The other end of the rubber band 20 is attached to the main body 12 by hooking a hook 20b at the other end of the rubber band 20 into the hole 14a2 provided in the contact piece 14a (FIG. 2) is a view showing a state in which the rubber band 20 is removed). In addition, the above-mentioned attachment mode of the rubber band 20 is only an example, and another attachment mode may be adopted. By attaching the rubber band 20 as described above, the rubber band 20 can be removed when it is unnecessary (for example, when the safety device 10 is stored).

  The safety device 10 composed of the main body 12, the outer wall contact plate 14, the contact piece 14a, the contact plate side walls 14b and 14c, and the small piece 16 is prepared, for example, as shown in FIG. It may be formed by applying and bonding an adhesive to the margin. Alternatively, the safety device 10 may be formed by separately preparing the outer wall contact plate 14, the contact piece 14a, the contact plate side walls 14b, 14c, and the small piece 16, and assembling the respective plates and joining them using a tape or the like. Good.

  Next, the use of the safety device 10 configured as described above will be described mainly with reference to FIGS. 6 and 7. FIG. 6A is a diagram illustrating a state in which the gondola is suspended beside the outer wall of the building. The safety device 10 is installed by placing the main body in a gondola such that the outer wall contact plate 14 projects toward the building. Since the outer wall contact plate 14 of the safety device 10 is pulled downward by the rubber band 20, the contact piece 14a is in contact with the outer wall. The outer wall repair work is performed in such a state. When the peeled outer wall material is dropped downward, the outer wall material hits the outer wall contact plate 14 and slides down into the main body 12. That is, the worker on the gondola only needs to peel off the outer wall material and drop it downward at that position, and the dropped outer wall material slides down the outer wall contact plate 14 and is collected under the worker's feet. Becomes At this time, since the contact piece 14a of the outer wall contact plate 14 is in contact with the outer wall of the building, it is possible to prevent the peeled outer wall material from falling outside through a gap between the building and the outer wall.

  Even if the gondola swings and moves in the horizontal direction due to wind or the like, the outer wall contact plate 14 is pulled downward by the rubber band 20, and the contact piece 14a keeps contacting the outer wall (see FIG. 6B). The peeled outer wall material does not fall to the outside from the gap between the building and the outer wall.

  When the repair work is completed, the safety device 10 containing the peeled outer wall material is lowered from the gondola to the ground, and the peeled outer wall material is discarded at a predetermined location. Then, the safety device 10 is disassembled and discarded. In this way, repair work can be performed quickly while ensuring safety.

  Note that a chute (not shown) may be provided between the opening 12a of the bottom plate 12a of the main body 12 and the ground, and the peeled outer wall material may be dropped on the ground through the chute.

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

  For example, the dimensions, detailed shapes, and the like of the illustrated main body 12, outer wall contact plate 14, small pieces 16, and reinforcing pieces 18 are merely examples, and the present invention is not limited thereto. Further, the contact piece 14a may not be provided on the outer wall contact plate 14, and the distal end of the outer wall contact plate 14 may contact the outer wall.

DESCRIPTION OF SYMBOLS 10 Safety device 12 Main body 12a Bottom plate 12a1 Opening 12b, 12c Long side direction side plate 12d, 12e Short side direction side plate 14 Outer wall contact plate 14a Contact piece 14b, 14c Contact plate side wall 16 Small piece 18 Reinforcement piece 20 Rubber band 20a, 20b Hook

Claims (3)

A safety device for exterior wall repair work using a gondola,
A box-shaped main body having an elongated rectangular bottom plate, a pair of long side direction side plates, and a pair of short side direction side plates, and an upper surface opened,
A rectangular outer wall contact plate connected to the upper edge of the long side direction side plate located on the side of the building among the long side direction side plates and extending over the entire length of the long side direction side plate,
A plurality of rubber bands for pulling the outer wall contact plate downward,
The main body and the outer wall contact plate are formed of paperboard or cardboard,
By placing the main body in the gondola such that the outer wall contact plate protrudes toward the side of the building, even if the gondola sways in the horizontal direction during the outer wall repair work, the tip of the outer wall contact plate is placed on the outer wall of the building. The device characterized in that it is configured to always contact the device.   The device according to claim 1, wherein the rubber band is configured to be removable.   3. The device according to claim 1, further comprising a reinforcing piece for reinforcing a connection between the main body and the outer wall contact plate.

Images