Temporary gutter structure and temporary gutter mounting method

Abstract

To provide a temporary gutter structure and a temporary gutter mounting method which facilitate the installation of a temporary gutter for preventing water leakage due to rainwater etc.SOLUTION: This temporary gutter structure 20 has a drain 22 arranged in a through-hole 17 of a floor slab 14, and a temporary gutter unit 24 installable in the drain 22. The drain 22 has a cylindrical part side 22a, and the temporary gutter unit 24 is composed of a flexible tube, and has a temporary gutter body part 25 fixed to an outer peripheral surface 22d of the cylindrical part side 22a of the drain 22, and a first annular part 26 elastically deformable and installed on an upper end part side 25a of the temporary gutter body part 25. The first annular part 26 is elastically deformed in a state of being attached to the 25a of the upper end part of the temporary gutter body part 25, can pass through the inside of the cylindrical part 22a of the drain 22, and is fixed to the outer peripheral surface 22a of the cylindrical part 22d of the drain 22.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a temporary gutter structure and a temporary gutter installation method for a temporary gutter installed to drain rainwater and the like in a building under construction, and in particular to a temporary gutter structure and a temporary gutter installation method for a temporary gutter installed on a balcony or common corridor of a building. [Background technology]

[0002] When construction of a building is completed, gutters for draining rainwater and the like are installed, for example, on the building's balconies or common corridors. However, in buildings under construction, gutters are not necessarily installed first due to the order of construction, etc. Therefore, various measures are taken to prevent water damage from rainwater and the like during construction of a building. For example, temporary gutters for draining rainwater and the like are installed. Temporary gutters are also called temporary gutters. Additionally, for example, Patent Document 1 proposes a temporary waterproofing method that does not require the installation of temporary gutters. Patent Document 1 describes a temporary waterproofing method in which a through-hole for a temporary drain pipe is drilled at a predetermined position in a floor slab, a flanged drain with one end of a drainage hose connected to the pipe is inserted into the through-hole, the flange is attached to the floor slab around the through-hole, the other end of the drainage hose is pulled out to the outside of the building through an opening such as a window, a temporary waterproofing sheet is laid in a pool shape from the surface of the floor slab to the upper end surface of the rising part of the wall, the temporary waterproofing sheet is attached to the upper surface of the flange of the drain with an adhesive member, and a hole is drilled in the temporary waterproofing sheet to match the position of the drain's outlet. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2016-17278 Summary of the Invention [Problem to be solved by the invention]

[0004] Conventionally, during the construction of a building, in addition to providing temporary gutters (temporary gutters) to prevent water damage from rainwater, etc., temporary waterproofing methods have been proposed that do not require the installation of temporary gutters, as in the above-mentioned Patent Document 1. However, the temporary waterproofing method of Patent Document 1 requires drilling through-holes for temporary drainage pipes at predetermined positions in the floor slab and then sealing the through-holes, which is time-consuming. Furthermore, temporary gutters are installed in the same locations as gutters installed on balconies or common corridors of buildings. Therefore, installing temporary gutters requires the preparation of stepladders and other tools, which is time-consuming. Furthermore, installing temporary gutters requires working overhead, which makes it difficult to work with.

[0005] Therefore, the present invention has been made in consideration of the above problems, and its purpose is to provide a temporary gutter structure and a temporary gutter installation method that make it easy to install temporary gutters to prevent water damage from rainwater, etc. during the construction of a building. [Means for solving the problem]

[0006] The above problems are solved by the temporary gutter structure of the present invention, which comprises a drain provided in a through hole in the floor slab and a temporary gutter unit that can be attached to the drain, wherein the drain has a tubular portion, and the temporary gutter unit is composed of a flexible tube and has a temporary gutter main body that is fixed to the outer peripheral surface of the tubular portion of the drain, and a first ring that is elastically deformable and attached to the upper end of the temporary gutter main body, wherein the first ring can elastically deform while attached to the upper end of the temporary gutter main body and pass inside the tubular portion of the drain, and is fixed to the outer peripheral surface of the tubular portion of the drain. The temporary gutter structure of the present invention configured as described above makes it easy to install temporary gutters to prevent the building from getting wet with rainwater, etc. during construction of the building.

[0007] Furthermore, it is preferable that the temporary gutter structure described above has a holding portion that is connected to the first ring portion and that holds the outer shape of the first ring portion, and a hanging member that is connected to the holding portion and that hangs the holding portion. According to the above configuration, the first ring portion can be easily pulled up toward the drain side by the hanging member. Furthermore, in the above-described temporary gutter structure, it is more preferable to have a second ring portion attached to the lower end portion of the temporary gutter main body portion in order to open the lower end portion. According to the above configuration, the lower end of the temporary gutter main body is open, so that rainwater and the like can be efficiently drained. Furthermore, in the above-mentioned temporary gutter structure, it is even more preferable that the first ring portion is composed of a plurality of rings, one of which has an inner diameter that can fit onto the outer peripheral surface of the cylindrical portion of the drain, and the remaining rings have inner diameters that are equal to or greater than the inner diameter of the one ring. According to the above configuration, the temporary gutter main body can be reliably fixed. Furthermore, in the above-mentioned temporary gutter structure, it is even more preferable that the second ring portion is composed of a plurality of rings, one of which has an inner diameter that can fit onto the outer peripheral surface of the cylindrical portion of the drain, and the remaining rings have inner diameters that are equal to or greater than the inner diameter of the one ring. According to the above configuration, the temporary gutter main body can be reliably fixed.

[0008] Furthermore, it is even more preferable that the above-mentioned temporary gutter structure has a retaining portion connected to the second ring portion and maintaining the outer shape of the second ring portion, and a hooking portion connected to the retaining portion and hooking onto a member opposite the lower end of the temporary gutter main body portion. According to the above configuration, even if the temporary gutter main body shakes due to vibration or wind, etc., rainwater and the like that has passed through the temporary gutter main body can be prevented from being drained to places other than the designated location. Furthermore, in the above-mentioned temporary gutter structure, it is even more preferable that the member facing the lower end of the temporary gutter main body is a temporary gutter unit that faces the floor slab and is provided in the drain of another floor slab located at a distance below. According to the above configuration, even if the temporary gutter main body shakes due to vibration or wind, etc., rainwater and the like that has passed through the temporary gutter main body can be drained downward, and it is further possible to prevent rainwater and the like from being drained to places other than the designated places.

[0009] According to the temporary gutter installation method of the present invention, the problem is solved by the steps of attaching an elastically deformable first ring portion to the upper end of a temporary gutter main body portion made of a flexible tube, elastically deforming the first ring portion to insert it from above into the inside of a tubular portion of a drain provided in a through hole in the floor slab and passing the temporary gutter main body portion through the first ring portion, and pulling up the first ring portion and fitting it to the outer peripheral surface of the tubular portion to fix the temporary gutter main body portion to the outer peripheral surface of the drain tubular portion. The temporary gutter installation method of the present invention, configured as described above, allows for the installation of temporary gutters to prevent the building from getting wet from rainwater, etc. during construction of a building in a simple manner that does not require the preparation of ladders, etc., and does not require any upward work. It is preferable to include a step of attaching a second ring portion to the lower end of the temporary gutter main body and opening the lower end. According to the above configuration, the lower end of the temporary gutter main body is open, so that rainwater and the like can be efficiently drained. [Effects of the Invention]

[0010] According to the temporary gutter structure and temporary gutter installation method of the present invention, temporary gutters can be easily installed to prevent water damage caused by rainwater, etc. [Brief explanation of the drawings]

[0011] [Figure 1] 1 is a schematic diagram showing an example of a temporary gutter structure according to one embodiment of the present invention. [Figure 2] 1 is a schematic cross-sectional view showing an enlarged view of a main part of an example of a temporary gutter structure according to one embodiment of the present invention. [Figure 3] 1 is a schematic perspective view showing an example of a first clip of a temporary gutter structure according to one embodiment of the present invention. [Figure 4] FIG. 10 is a schematic cross-sectional view showing another example of a temporary gutter structure according to one embodiment of the present invention. [Figure 5] 1 is a schematic perspective view showing an example of a second clip of a temporary gutter structure according to one embodiment of the present invention. FIG. [Figure 6] 1 is a schematic cross-sectional view showing an example of a process of a temporary gutter installation method according to one embodiment of the present invention. [Figure 7]1 is a schematic cross-sectional view showing an example of a process of a temporary gutter installation method according to one embodiment of the present invention. [Figure 8] 1 is a schematic cross-sectional view showing an example of a process of a temporary gutter installation method according to one embodiment of the present invention. [Figure 9] 1 is a schematic cross-sectional view showing an example of a process of a temporary gutter installation method according to one embodiment of the present invention. [Figure 10] 1 is a schematic cross-sectional view showing an example of a process of a temporary gutter installation method according to one embodiment of the present invention. [Figure 11] 1 is a schematic cross-sectional view showing an example of a process of a temporary gutter installation method according to one embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0012] <<Temporary gutter structure and temporary gutter installation method according to one embodiment of the present invention>> Hereinafter, one embodiment of the present invention (hereinafter referred to as the present embodiment) will be described with reference to the accompanying drawings. In the drawings, the illustrations are somewhat simplified and schematic to make the explanation easier to understand, and the sizes (dimensions) shown in the drawings are different from the actual ones.

[0013] (An example of a temporary gutter structure) As mentioned above, when construction of a building is completed, gutters are installed on the balconies or common corridors of the building to drain rainwater, etc. However, in buildings under construction, gutters are not necessarily installed first, so temporary gutters are installed in the places where gutters will be installed. The temporary gutter structure constitutes a temporary gutter that replaces a gutter provided on a balcony or a common corridor of a building, for example. The temporary gutter structure will be specifically described below using a balcony as an example. Fig. 1 is a schematic diagram showing an example of a temporary gutter structure according to one embodiment of the present invention, and Fig. 2 is a schematic cross-sectional view showing an enlarged view of a main part of an example of the temporary gutter structure according to one embodiment of the present invention. 1 shows a multi-story building 10 with a balcony portion. Floor slabs 14, 15, and 16 that form balconies 18 and 19 extend from a wall 12. From the top, floor slab 14, floor slab 15, and floor slab 16 are arranged in this order, spaced apart from one another. When building 10 is completed, vertical gutters (not shown) extending vertically of building 10 will be permanently installed between floor slabs 14 and 15, and between floor slabs 15 and 16, but during construction of building 10, temporary gutters will be installed in the locations where the gutters will be installed, as described above.

[0014] The floor slab 14 and the floor slab 15 are shown in FIG. 2, and the temporary gutter structure 20 will be explained. The temporary gutter structure 20 has a drain 22 provided in the through hole 17 of the floor slab 14 and a temporary gutter unit 24 that can be attached to the drain 22. The floor slab 14 is formed, for example, by pouring concrete with the drain 22 in place, and the drain 22 is fixed to the floor slab 14. The other floor slabs 15 and 16 are also formed by pouring concrete with drains 22 in place, similar to the floor slab 14, and the drains 22 are fixed to the floor slabs 15 and 16. The drain 22 has, for example, a cylindrical tube portion 22a and a flange portion 22b, and the flange portion 22b, which has a larger diameter than the tube portion 22a, is connected to the end of the tube portion 22a. The flange portion 22b is engaged with the floor slab 14, fixing the position of the drain 22. Rainwater and the like passes through the interior 22c of the tube portion 22a.

[0015] The temporary gutter unit 24 has a temporary gutter main body 25 and a first ring 26 that is elastically deformable and attached to an upper end 25a of the temporary gutter main body 25. The first ring portion 26, when attached to the upper end portion 25a of the temporary gutter main body portion 25, can elastically deform to pass through the interior 22c of the tubular portion 22a of the drain 22, and is fixed to the outer peripheral surface 22d of the tubular portion 22a of the drain 22. The temporary gutter unit 24 further has a holding portion 27 that is connected to the first ring portion 26 and that maintains the outer shape of the first ring portion 26. In the illustrated example, the holding portion 27 is shown hooked onto the opening 22f, but the holding portion 27 is not limited to being hooked onto the opening 22f and does not have to be hooked. The temporary gutter main body 25 is made of a flexible tube and is fixed to the outer peripheral surface 22d of the tubular portion 22a of the drain 22. When the temporary gutter main body 25 is fixed to the outer peripheral surface 22d of the tubular portion 22a of the drain 22, the temporary gutter main body 25 is, for example, inserted into the interior 22c of the tubular portion 22a of the drain 22 from above the tubular portion 22a. Note that being flexible means, for example, that it returns to its original state without permanent deformation even when folded. The temporary gutter unit 24 further has a hanging member 28 that is connected to the holding portion 27 and hangs the holding portion 27. It has a stopper 29 that is connected to the hanging member 28 and fixes the position of the holding portion 27 in the thickness direction Dt of the floor slab 14. The stopper 29 keeps the holding portion 27 in a lifted state, and fixes the temporary gutter main body 25 to the drain 22.

[0016] 1 and 2, the temporary gutter main body 25 is arranged from the underside 14b of the floor slab 14 to the vicinity of the drain 22 provided in the floor slab 15. It is also arranged from the underside 15b of the floor slab 15 to the vicinity of the drain 22 provided in the floor slab 16. The temporary gutter main body 25 functions as a flow path for rainwater and the like, and both ends are open. Since the temporary gutter main body 25 functions as a flow path, it is preferably waterproof, easy to attach and remove, and highly portable for easy transport. For this reason, the temporary gutter main body 25 is preferably made of polyethylene, for example, so that it can be folded and carried around. The length of the temporary gutter main body 25 is determined appropriately depending on the location where the gutter is to be installed, and is determined, for example, by the distance between the underside 14b of the floor slab 14 and the upper side 15a of the floor slab 15, or the distance between the underside 15b of the floor slab 15 and the upper side 16a of the floor slab 16. As described above, the temporary gutter main body 25 is removable and may be reused rather than being disposable, thereby reducing industrial waste.

[0017] In the temporary gutter structure 20, for example, rainwater etc. accumulates on the upper surface 14a of the floor slab 14, passes through the inside 22c of the tubular portion 22a of the drain 22, and then passes through the inside 25c of the temporary gutter main body 25, before being drained from the lower end 25b of the temporary gutter main body 25 and reaching the upper surface 15a of the floor slab 15 of the lower layer. In this way, the temporary gutter structure 20 functions as a gutter, ensuring a drainage route for the balcony 18 during construction and preventing it from getting wet with rainwater etc. The first ring portion 26 elastically deforms while attached to the upper end portion 25a of the temporary gutter main body portion 25, allowing it to pass through the interior 22c of the tubular portion 22a of the drain 22, and is fixed to the outer peripheral surface 22d of the tubular portion 22a of the drain 22. For this reason, for example, as shown in Fig. 8, the maximum diameter Dm of the first ring 32 and the second ring 33 is larger than the inner diameter Di of the interior 22c of the drain 22 so as to fit the outer peripheral surface 22d, and the minimum diameter Dn of the first ring 32 and the second ring 33 is larger than the outer diameter Ds of the outer peripheral surface 22d of the drain 22.

[0018] In the temporary gutter structure 20, an elastically deformable first ring 26 is attached to the upper end 25a of the temporary gutter main body 25 to open it. The first ring 26 is then elastically deformed and inserted into the interior 22c of the tubular portion 22a of the drain 22 provided in the through-hole 17 of the floor slab 14 from above, passing the temporary gutter main body 25 through. The first ring 26 is then elastically deformed to return to its original size. The temporary gutter main body 25 is then fixed to the outer peripheral surface 22d of the tubular portion 22a using the first ring 26. Since the temporary gutter main body 25 can be attached and installed on the upper surface 14a of the floor slab 14, installing the temporary gutter structure 20 does not require the use of a ladder or other equipment, is labor-saving, and requires no overhead work, resulting in excellent workability. This facilitates the installation of temporary gutters to prevent rainwater and other water damage. Furthermore, the temporary gutter structure 20 can release the temporary gutter main body 25 from being fixed to the drain 22 by releasing the state in which the holding part 27 is lifted by the stopper 29. This allows the temporary gutter main body 25 to be removed. Therefore, when installing a permanent gutter in the building 10, the temporary gutter main body 25 can be removed as described above. In addition, the drain 22 of the floor slab 15 shown in FIG. 1 and the drain 22 of the floor slab 16 are provided with a temporary gutter structure 20 in the same manner as the floor slab 14.

[0019] [Clip 1] Next, the first clip 30 having the first ring portion 26, the holding portion 27, etc. will be described in more detail. Fig. 3 is a schematic perspective view showing an example of a first clip of a temporary gutter structure according to one embodiment of the present invention. In Fig. 3, the same components as those shown in Figs. 1 and 2 are designated by the same reference numerals, and detailed description thereof will be omitted. As shown in FIG. 3, the first clip 30 has a first ring portion 26, a holding portion 27, a hanging member 28, a stopper 29, and a cord 34.

[0020] The elastically deformable first ring portion 26 is configured, for example, by two rings: a first ring 32 and a second ring 33. The first ring 32 and the second ring 33 are both annular rings and are elastically deformable. One of the multiple rings has an inner diameter that can fit onto the outer peripheral surface 22d of the cylindrical portion 22a of the drain 22, and the remaining multiple rings have inner diameters that are equal to or larger than the inner diameter of the one ring. In the example shown in Fig. 3, the first ring 32 has an inner diameter that can fit onto the outer peripheral surface 22d of the cylindrical portion 22a of the drain 22, and the second ring 33 has an inner diameter that is equal to or larger than the inner diameter of the first ring 32. With this configuration, the temporary gutter main body 25 can be reliably fixed by the multiple rings, for example, the first ring 32 and the second ring 33. The first ring 32 and the second ring 33 are configured to have, for example, an elastically deformable ring-shaped body and a cover that encases the ring-shaped body. This configuration can prevent damage to the temporary gutter main body 25 and also prevent injuries to workers. An elastically deformable annular body is one that returns to its original annular state without permanent deformation when a load within the elastic deformation range is applied and then the load is removed. For example, it is preferable that the elastically deformable annular body returns to its original state without permanent deformation when the annular body is elastically deformed into a figure-eight shape and then the deformation is removed. For example, the ring-shaped body is made of wire, the wire is made of metal, and the cover is made of resin. The first ring 32 and the second ring 33 come into contact with liquids such as rainwater, but by covering the metal wire with a resin cover, rust on the ring-shaped body can be suppressed and durability can be increased. For this reason, it is preferable to cover the metal wire with a resin cover.

[0021] The retaining portion 27 has, for example, a linear base portion 27a and linear arm portions 27b that face each other at both ends of the base portion 27a. A first ring 32 is fixed to ends 27c of the arm portions 27b. This connects the first ring 32 to the retaining portion 27. The retaining portion 27 maintains the outer shape of the first ring 32, and the first ring 32 maintains a predetermined inner diameter. Also, for example, the base portion 27a of the retaining portion 27 may contact the opening 22f of the tubular portion 22a of the drain 22. When the base portion 27a contacts the opening 22f of the tubular portion 22a of the drain 22, the base portion 27a functions as a restricting member that restricts the position of the first ring portion 26 in the thickness direction Dt. The base portion 27a and the arm portion 27b may be made of a plate-like member, or may be made of a linear or rod-like member. The second ring 33 is connected to the base 27a of the holder 27 by a cord 34. The cord 34 can prevent the second ring 33 from being lost. The cord 34 is, for example, a wire (string) or a chain, and is made of metal or resin.

[0022] One end 28a of the hanging member 28 is connected to the base 27a of the holding portion 27. A stopper 29 is provided at the other end 28b of the hanging member 28. The stopper 29 is formed, for example, of a flat plate, and has a hole 29a in the center for connecting the hanging member 28. The hanging member 28 also has a pin 28c at its end 28b. By inserting this pin 28c into the hanging member 28 that has passed through the hole 29a in the stopper 29, the distance between the base 27a of the holding portion 27 and the stopper 29 can be adjusted by the hanging member 28. The hanging member 28 is, for example, a metal or resin chain. By providing the hanging member 28, the first ring portion 26 can be easily pulled up toward the drain 22 by the hanging member 28. A stopper 29 engages with the bottom surface 22e of the flange portion 22b to fix the position of the retaining portion 27 in the thickness direction Dt of the floor slab 14. The stopper 29 is not limited to being engaged with the bottom surface 22e of the flange portion 22b, but may be engaged with the upper surface of the flange portion 22b. Since the holding portion 27, the hanging member 28, the stopper 29 and the cord 34 come into contact with liquids such as rainwater, it is preferable that they be made of materials with excellent rust resistance against rainwater, etc., from the standpoint of durability, and for example, stainless steel plate or stainless steel wire is used.

[0023] The first annular portion 26 is composed of, for example, a first ring 32 and a second ring 33. To open the upper end portion 25a of the temporary gutter main body portion 25, the upper end portion 25a of the temporary gutter main body portion 25 is folded back from the outside to the inside of the first ring 32 to enclose the first ring 32, and the second ring 33 is passed inside the first ring 32, and the folded back end portion of the temporary gutter main body portion 25 is sandwiched below the first ring 32 between the second ring 33 and the arm portion 27b of the holding portion 27. This integrates the temporary gutter main body portion 25 with the first ring 32 and the second ring 33, and the upper end portion 25a of the temporary gutter main body portion 25 is expanded to follow the outer shapes of the first ring 32 and the second ring 33, opening the upper end portion 25a of the temporary gutter main body portion 25.

[0024] (Another example of a temporary gutter structure) FIG. 4 is a schematic cross-sectional view showing another example of the temporary gutter structure according to one embodiment of the present invention. In FIG. 4, the same components as those in the temporary gutter structure 20 shown in FIGS. 1 and 2 are denoted by the same reference numerals, and detailed description thereof will be omitted. The temporary gutter structure 20 shown in Figures 1 and 2 is configured such that nothing is provided at the lower end 25b of the temporary gutter main body 25. In contrast, the temporary gutter structure 21 shown in Figure 4 differs from the temporary gutter structure 20 shown in Figures 1 and 2 in that it has a second ring portion 31 attached to the lower end 25b of the temporary gutter main body 25 in order to open the lower end 25b of the temporary gutter main body 25, but otherwise has the same configuration as the temporary gutter structure 20 in Figures 1 and 2. In the temporary gutter structure 21, as described above, the second ring portion 31 is attached to the lower end portion 25b of the temporary gutter main body portion 25. This opens the lower end portion 25b of the temporary gutter main body portion 25, allowing efficient drainage from the interior 25c of the temporary gutter main body portion 25, and as a result, rainwater and the like can be efficiently drained.

[0025] Furthermore, it has a holding portion 35 connected to the second ring portion 31 and maintaining the outer shape of the second ring portion 31, and an engaging portion 36 connected to the holding portion 35 and engaging with a member opposite the lower end portion 25b of the temporary gutter main body portion 25. The member facing the lower end 25b of the temporary gutter main body 25 is a temporary gutter unit 24 provided in the drain 22 of another floor slab 15 that faces the floor slab 14 and is disposed spaced below. More specifically, it is a hanging member 28 of the temporary gutter unit 24 provided in the drain 22 of the floor slab 15. As a result, the opening of the lower end 25b of the temporary gutter main body 25 is disposed opposite the interior 22c of the tubular portion 22a of the drain 22 of the floor slab 15. In this case, rainwater, etc. accumulates on the upper surface 14a of the floor slab 14, passes through the interior 22c of the tubular portion 22a of the drain 22, passes through the interior 25c of the temporary gutter main body 25, and is drained from the lower end 25b of the temporary gutter main body 25. The rainwater, etc. is further supplied to the drain 22 of the floor slab 15 and is further drained from the drain 22 of the floor slab 15 to the lower level. In this way, the temporary gutter structure 21 drains rainwater, etc.

[0026] Furthermore, by providing the second ring portion 31, the weight of the second ring portion 31 acts as a downward force on the temporary gutter main body portion 25, and even if the lower end portion 25b of the temporary gutter main body portion 25 shakes due to vibration or wind, etc., rainwater, etc. that has passed through the interior 25c of the temporary gutter main body portion 25 can be prevented from being drained anywhere other than the designated location, specifically, anywhere other than the drain 22 of the floor slab 15. Furthermore, by engaging the engaging portion 36 with the hanging member 28 of the temporary gutter unit 24 provided on the floor slab 15 of the lower layer as described above, the movement of the lower end portion 25b of the temporary gutter main body 25 in directions perpendicular to and parallel to the upper surface 15a of the floor slab 15 is restricted. For this reason, even if the temporary gutter main body 25 shakes due to vibration or wind, rainwater and the like that has passed through the interior 25c of the temporary gutter main body 25 can be drained downward, that is, into the drain 22 of the floor slab 15 below, and it is possible to further prevent rainwater and the like from being drained anywhere other than the specified location, that is, into places other than the drain 22 of the floor slab 15.

[0027] [Second Clip] Next, the second clip 38 having the second ring portion 31 and the like will be described in more detail. Fig. 5 is a schematic perspective view showing an example of a second clip of a temporary gutter structure according to one embodiment of the present invention. In Fig. 5, the same components as those of the first clip 30 shown in Fig. 3 are designated by the same reference numerals, and detailed description thereof will be omitted. The second clip 38 is provided at the lower end 25b of the temporary gutter main body 25, and is elastically deformable. The second clip 38 differs from the first clip 30 in that it has a hooking portion 36 instead of the hanging member 28 and the stopper 29, but otherwise has the same configuration as the first clip 30. The second clip 38 has a second ring portion 31, a cord 34, a holding portion 35, and the hooking portion 36. The second ring portion 31 is made up of an elastically deformable first ring 32 and a second ring 33, similar to the first ring portion 26 shown in FIG.

[0028] The retaining portion 35 has a configuration similar to that of the retaining portion 27 of the first clip 30, and has a linear base portion 35a and linear arm portions 35b that face each other at both ends of the base portion 35a. The first ring 32 is fixed to ends 35c of the arm portions 35b. The retaining portion 35 maintains the outer shape of the first ring 32, and the first ring 32 maintains a predetermined inner diameter. The base portion 35a and the arm portions 35b may be formed of plate-like members, or may be formed of wire- or rod-like members. The engaging portion 36 is provided with, for example, a hook 36a and a connecting member 36b that connects the hook 36a and the holding portion 35. The second ring portion of the hook 36a is adapted to be hooked onto the opposing hanging member 28. Therefore, the configuration of the hook 36a is not particularly limited as long as it can be hooked onto the hanging member 28. The connecting member 36b is formed of, for example, a chain or a wire. The hook portion 36 is not necessarily required, and the configuration may be such that the hook portion 36 is not provided. Since the holding portion 35 and the engaging portion 36 come into contact with liquids such as rainwater, it is preferable that they be made of a material that has excellent rust resistance against rainwater, etc., from the standpoint of durability; for example, a stainless steel plate or stainless steel wire is used.

[0029] (Temporary gutter installation method) Next, the method for installing the temporary gutter will be explained. 6 to 11 are schematic cross-sectional views showing an example of the steps of a temporary gutter installation method according to one embodiment of the present invention in the order of steps. In Fig. 6 to Fig. 11, the same components as those in the temporary gutter structure 20 shown in Fig. 1 and Fig. 2 are given the same reference numerals, and detailed explanations thereof will be omitted. 6 and 7, the hanging member 28, the stopper 29, and the cord 34 are not shown. Also, the stopper 29 is not shown in FIGS. In the temporary gutter installation method, first, as shown in FIG. 6, the upper end portion 25a of the temporary gutter main body 25 is folded back from the outside to the inside 32a of the first ring 32 to enclose the first ring 32. Next, for example, after elastically deforming the second ring 33, it is passed through the inside 32a of the first ring 32 to release the elastic deformation of the second ring 33, and then the second ring 33 is fitted below the first ring 32, as shown in Figure 7. At this time, the end 25d of the folded-back temporary gutter main body 25 is sandwiched between the second ring 33 and the arm 27b of the retaining portion 27. As a result, the end 25d of the temporary gutter main body 25 is fixed by the first ring 32 and the second ring 33, the temporary gutter main body 25 is integrated with the first ring 32 and the second ring 33, and the upper end 25a of the temporary gutter main body 25 is expanded to follow the outer shapes of the first ring 32 and the second ring 33, opening the upper end 25a of the temporary gutter main body 25.

[0030] Next, as shown in Figure 8, with the first ring portion 26 attached to the upper end portion 25a of the temporary gutter main body portion 25 to open it, the first ring portion 26 is elastically deformed and inserted into the interior 22c of the tubular portion 22a of the drain 22 provided in the through hole 17 of the floor slab 14 from above the tubular portion 22a, allowing the temporary gutter main body portion 25 to pass through. The first ring 32 and the second ring 33 have deformable annular bodies, and therefore are capable of elastic deformation. Therefore, although the maximum diameter Dm of the first ring 32 and the second ring 33 is larger than the inner diameter Di of the interior 22c of the drain 22 as shown in Fig. 8, the first ring 32 and the second ring 33 can pass through the interior 22c of the drain 22 by elastically deforming them. This allows the upper end 25a of the temporary gutter main body 25 to pass through the opening 22f of the drain 22 and be positioned below the opening 22f of the drain 22, as shown in Fig. 9. Next, the temporary gutter main body 25 is pulled up toward the drain 22, for example, by the hanging member 28. In this case, as shown in FIG. 8, the minimum diameter Dn of the first ring 32 and the second ring 33 is larger than the outer diameter Ds of the outer peripheral surface 22d of the drain 22. Therefore, as shown in FIG. 10, the first ring 32 and the second ring 33 are fitted onto the outer peripheral surface 22d of the tubular portion 22a of the drain 22. Furthermore, the base 27a of the retaining portion 27 may be abutted against and hooked onto the opening 22f of the tubular portion 22a of the drain 22. This positions the first ring portion 26 in the thickness direction Dt of the floor slab 14. In this state, as shown in FIG. 11 , the stopper 29 is engaged with the bottom surface 22e of the flange portion 22b to fix the position of the temporary gutter main body portion 25 in the thickness direction Dt of the floor slab 14. This fixes the temporary gutter main body portion 25 to the outer peripheral surface 22d of the tubular portion 22a of the drain 22. In this manner, the temporary gutter main body portion 25 is attached to the drain 22. As described above, the holding portion 27 does not have to be hooked onto the opening 22f.

[0031] In this way, with the temporary gutter installation method, the temporary gutter body 25, which functions as a gutter to prevent rainwater and other water from getting into the building, can be installed in a simple manner without the need for a stepladder or other equipment, and without any overhead work. Since no stepladder or other equipment is required, it is not time-consuming. Furthermore, when installing the temporary gutter main body 25, the temporary gutter main body 25 is inserted into the interior 22c of the tubular portion 22a of the drain 22 from above the tubular portion 22a, and then the temporary gutter main body 25 is pulled up toward the drain 22 and fixed to the outer surface 22d of the tubular portion 22a of the drain 22, which eliminates the need for upward work and provides excellent workability. In the temporary gutter installation method, nothing is attached to the lower end 25b of the temporary gutter main body 25. However, as in the temporary gutter structure 21 shown in Figure 4, a second ring portion 31 can be attached to the lower end 25b of the temporary gutter main body 25 in order to open the lower end 25b of the temporary gutter main body 25.

[0032] When attaching the elastically deformable second ring portion 31 to the lower end portion 25b of the temporary gutter main body portion 25, similar to the upper end portion 25a of the temporary gutter main body portion 25 shown in Figure 6, the lower end portion 25b of the temporary gutter main body portion 25 is folded back from the outside to the inside 32a of the first ring 32 to encase the first ring 32. Next, similar to the upper end portion 25a of the temporary gutter main body portion 25 shown in Figure 7, the second ring 33 is elastically deformed and then passed through the inside 32a of the first ring 32 to release the elastic deformation of the second ring 33, and the second ring 33 is fitted above the first ring 32. At this time, the folded end portion 25d of the temporary gutter main body portion 25 is sandwiched between the second ring 33 and the arm portion 35b of the holding portion 35. As a result, the end 25d of the temporary gutter main body 25 is fixed by the first ring 32 and the second ring 33, the temporary gutter main body 25 becomes one with the first ring 32 and the second ring 33, and the lower end 25b of the temporary gutter main body 25 is expanded along the outer shape of the first ring 32 and the second ring 33, opening the lower end 25b of the temporary gutter main body 25.

[0033] Furthermore, as shown in Figure 4, the hanging member 28 of the temporary gutter structure 20 provided on the drain 22 of the floor slab 15, which is disposed opposite but spaced from the floor slab 14, can also be connected to the second ring portion 31 using the hook portion 36. In this case, rainwater collects on the upper surface 14a of the floor slab 14, passes through the interior 22c of the tubular portion 22a of the drain 22, passes through the interior 25c of the temporary gutter main body 25, and is drained from the lower end 25b of the temporary gutter main body 25. The rainwater is further supplied to the drain 22 of the floor slab 15 and is further drained from the drain 22 of the floor slab 15 to the lower layer. In this way, rainwater and the like can be drained.

[0034] (How to remove the temporary gutter) When removing the temporary gutter structure 20, first, remove the pin 28c, release the stopper 29 engaged with the bottom surface 22e of the flange portion 22b, release the lifted state of the holding portion 27, and release the temporary gutter main body portion 25 from its fixation to the drain 22. Next, for example, the temporary gutter main body 25 is lowered using the hanging member 28 until the upper end 25a of the temporary gutter main body 25 is positioned below the opening 22f of the drain 22. Next, the first ring portion 26 is elastically deformed, and while maintaining that state, the upper end portion 25a of the temporary gutter main body portion 25 is pulled and passed through the opening 22f of the drain 22 into the interior 22c using the hanging member 28, and the temporary gutter main body portion 25 is pulled up onto the upper surface 14a of the floor slab 14. Next, the second ring 33 is elastically deformed and removed by passing it through the inside 32a of the first ring 32. Next, the folded-back portion of the upper end 25a of the temporary gutter main body 25 that was encasing the first ring 32 is stretched through the inside 32a of the first ring 32, and then the first ring 32 and the retaining portion 27 are removed from the temporary gutter main body 25. In this way, the first ring portion 26 is removed from the temporary gutter main body 25. The temporary gutter main body 25 and first ring portion 26 can be reused. When removing the temporary gutter structure 20, the temporary gutter main body 25 is released from its fixed position and pulled up to the upper surface 14a of the floor slab 14, after which the second ring 33 of the first ring 26 is elastically deformed and removed, thereby removing the first ring 26. In this way, because the temporary gutter structure 20 can be removed on the upper surface 14a of the floor slab 14, there is no need to prepare a ladder or the like, it is not time-consuming, and workability is excellent because there is no need to work upwards. In addition, the temporary gutter main body 25 can be lowered using the hanging member 28 to position the upper end 25a of the temporary gutter main body 25 below the opening 22f of the drain 22, and then, after confirming safety, the temporary gutter main body 25 can be lowered toward the upper surface 15a of the floor slab 15 of the lower level.

[0035] If the second ring portion 31 is attached to the lower end portion 25b of the temporary gutter main body portion 25, the second ring portion 31 is removed from the lower end portion 25b of the temporary gutter main body portion 25 before releasing the stopper 29 from lifting the retaining portion 27. In this case, the second ring 33 is elastically deformed and removed by passing it through the inner side 32a of the first ring 32. Next, the folded portion of the lower end portion 25b of the temporary gutter main body portion 25 that was encasing the first ring 32 is stretched through the inner side 32a of the first ring 32, and then the first ring 32 and retaining portion 35 are removed from the temporary gutter main body portion 25. In this way, the second ring portion 31 is removed from the temporary gutter main body portion 25. The second ring portion 31 can be reused. If the hanging member 28 of the temporary gutter structure 20 provided on the drain 22 of the floor slab 15 is connected to the second ring portion 31 of the lower end portion 25b of the temporary gutter main body portion 25 provided on the upper floor slab 14 using a hooking portion 36, the hooking portion 36 is released from the hooking before the second ring portion 31 is removed from the temporary gutter main body portion 25.

[0036] While one embodiment of the temporary gutter structure and temporary gutter installation method of the present invention has been described above, the above embodiment is merely an example to facilitate understanding of the present invention and does not limit the present invention. In other words, the present invention can be modified and improved without departing from the spirit of the present invention. Furthermore, it goes without saying that the present invention includes equivalents thereof. [Explanation of symbols]

[0037] 10 Building 12 Wall 14th, 15th, 16th floor slabs 14a, 15a, 16a top surface 14b, 15b bottom surface 17 Through hole 18, 19 Balcony 20, 21 Temporary gutter structure 22 Drain 22a Cylinder part 22b Tsubabe 22c, 25c internal 22d Outer surface 22e bottom 22f opening 24 Temporary gutter unit 25 Temporary gutter body 25a Upper end 25b Bottom end 25d end 26 First Ring 27 Holding part 27a, 35a base 27b, 35b arm 27c end 28 Hanging members 28a, 28b end 28c pin 29 Stopper 29a hole 30 1st Clip 31 Second Ring 32 First Ring 32a inside 33 Second Ring 34 Code 35 Holding part 35c end 36 Attachment 36a hook 36b Connecting member 38 2nd Clip Di Inner diameter Dm Maximum diameter Dn Minimum diameter Ds outer diameter Dt thickness direction

Claims

1. A drain provided in a through hole in the floor slab; A temporary gutter unit that can be attached to the drain, The drain has a cylindrical portion, The temporary gutter unit is a temporary gutter body portion formed of a flexible tube and fixed to an outer peripheral surface of the cylindrical portion of the drain; a first ring portion that is elastically deformable and attached to an upper end of the temporary gutter main body portion; A temporary gutter structure in which the first ring portion is elastically deformed when attached to the upper end of the temporary gutter main body portion so that it can pass inside the tubular portion of the drain, and is fixed to the outer surface of the tubular portion of the drain.

2. a holding portion connected to the first ring portion and holding the outer shape of the first ring portion; The temporary gutter structure according to claim 1 , further comprising a hanging member connected to the holding portion and for hanging the holding portion.

3. The temporary gutter structure according to claim 1 , further comprising a second ring portion attached to the lower end of the temporary gutter main body portion to open the lower end of the temporary gutter main body portion.

4. The first ring portion is configured by a plurality of rings, One of the plurality of rings has an inner diameter that can be fitted onto an outer peripheral surface of the cylindrical portion of the drain, The temporary gutter structure according to claim 1 , wherein the remaining rings of the plurality of rings have inner diameters equal to or larger than the inner diameter of the one ring.

5. The second ring portion is configured by a plurality of rings, One of the plurality of rings has an inner diameter that can be fitted onto an outer peripheral surface of the cylindrical portion of the drain, The temporary gutter structure according to claim 3 , wherein the remaining rings of the plurality of rings have inner diameters equal to or larger than the inner diameter of the one ring.

6. a holding portion connected to the second ring portion and holding the outer shape of the second ring portion; The temporary gutter structure according to claim 3 , further comprising a hooking portion connected to the holding portion and adapted to hook onto a member facing the lower end of the temporary gutter main body portion.

7. The temporary gutter structure described in claim 6, wherein the member opposite the lower end of the temporary gutter main body is a temporary gutter unit provided in the drain of another floor slab opposite the floor slab and spaced apart below.

8. a step of attaching an elastically deformable first ring to the upper end of a temporary gutter body made of a flexible tube, elastically deforming the first ring to insert the first ring into a cylindrical portion of a drain provided in a through-hole in a floor slab from above the cylindrical portion, and passing the temporary gutter body; A temporary gutter installation method comprising the steps of: pulling up the first ring portion, engaging the first ring portion with the outer peripheral surface of the cylindrical portion, and fixing the temporary gutter main body portion to the outer peripheral surface of the cylindrical portion of the drain.

9. The temporary gutter installation method according to claim 8, further comprising the step of attaching a second ring portion to the lower end of the temporary gutter main body portion and opening the lower end.

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