Fixing structure for article to wall surface and wall-mounted frame
A four-part wall fixing frame with screw reinforcement securely attaches items like rainwater tanks to building walls, addressing size variability and high-location challenges, enhancing stability and potential energy use.
Patent Information
- Application Number
- JP2024009958
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-01-26
- Publication Date
- 2025-08-07
- Estimated Expiration
- 2044-01-26
AI Technical Summary
Conventional methods for fixing items like rainwater tanks to building walls are inadequate, especially at high locations, and they struggle to accommodate items of varying sizes.
A wall fixing frame divided into four parts, with left and right sides fixed to the wall, a frame-shaped lower part, and an upper part supporting the item, using screws and reinforcement to secure items like rainwater tanks without contacting the ground, and accommodating different sizes through interchangeable frame parts.
The frame securely fixes items at high locations, supports various sizes, and enhances strength through screw distribution and reinforcement, ensuring stability and potential energy use without electricity, even in disasters.
Smart Images

Figure 2025115486000001_ABST
Abstract
Description
[Technical Field]
[0001] The present invention relates to a structure for fixing an item to a wall surface, for installing and fixing an item such as a rainwater tank to the wall surface of a building, and a wall fixing frame used for the fixing structure. [Background technology]
[0002] BACKGROUND ART Techniques for fixing items such as rainwater tanks (rain gutter catch basins) to the wall surfaces of buildings are well known (see, for example, Patent Documents 1 to 4).
[0003] Patent Document 1 describes, "A rainwater storage device characterized in that a thin, box-shaped water storage tank is erected along the exterior wall of a building, a rain gutter is connected above the water storage tank, a drain plug is provided below, and a connecting pipe that can be connected to another water storage tank is provided above." (Claim 3) and also states, "Fig. 3 is a perspective view showing an example of the rainwater storage device of the present invention described in claim 3. In Fig. 3, 30 is a rainwater storage device, and this rainwater storage device 30 is installed along the exterior wall 31 of the building." (Paragraph
[0024] ) and "32 is a thin, box-shaped water storage tank that is designed not to obstruct the passageway, and this water storage tank 32 is fixed and installed along the exterior wall 31 of the building with fixing brackets 32a, 32a to prevent it from tipping over." (Paragraph
[0025] )
[0004] Patent Document 2 describes "a domestic rainwater storage tank characterized in that a water storage tank is provided integrally on the inside of a siding board, and that the tank can be attached to the exterior wall of an existing building at the same time as the siding board is attached to the exterior wall of the existing building in a later construction project" (Claim 1), and also states, "The procedure for installing a domestic rainwater storage tank configured in this manner is explained below. First, as shown in Figure 1, the mounting frame 9 of the siding board 3 is fixed to the exterior wall 2 of the building 1. Next, the lower tank 13 integrated with the siding board 3 is attached to this mounting frame 8. If the mounting frame 8 is a wooden frame, the mounting is done by nailing or wood screwing, and if the mounting frame 8 is a metal frame, the mounting is done by bolting..." (Paragraph
[0020] ).
[0005] Patent Document 3 describes, "A water storage tank characterized in that the tank body for storing rainwater that falls on a building and the installation base for installing the tank body on the foundation are integrally formed from a metal material." (Claim 1), "A water storage tank as set forth in Claim 1 or 2, in which a support belt made of a metal material is wound around the outer periphery of the tank body, and both ends of this support belt are attached to fixing members of the building's outer wall, thereby supporting the tank body on the building's outer wall." (Claim 3), and also states, "In order to prevent the water storage tank (9) from tipping over due to strong winds, earthquakes, etc., as shown in Figures 1 and 3, a support belt (50) wound around the outer periphery of the tank body (10) is attached to fixing members (52) of the building's outer wall (51), thereby supporting the tank body (10) on the building's outer wall (51)." (Paragraph
[0025] ).
[0006] Patent Document 4 states, "A rain gutter collecting bin that is attached to the exterior wall of a building and has a vertical gutter connected to its lower part, the bin body having a frame for attaching to the exterior wall and a cover that is attached to the frame, a cup with a wide mouth at the top and a contracted pipe shape at the bottom is provided inside the body, and the vertical gutter is connected to the cup outlet, creating a flow path to drain rainwater guided from the elbow of the drain pipe and catching it" (Claim 1), and also states, "The cup outlet 42 is inserted through the cup insertion hole 32 of the frame 20. The frame 20 is fixed to the wall surface with anchors or the like at the position of the frame fixing holes 30" (Paragraph
[0020] ).
[0007] Furthermore, a technique for fixing an item other than a rainwater tank to a wall surface of a building using screws is also known (see Patent Document 5).
[0008] Patent Document 5 describes, "A wall fixing structure for fixing a hot water storage unit having a hot water storage tank built inside an outer case consisting of a top plate, a back plate, a front plate, and left and right side plates to a wall of a building, the wall fixing structure comprising: a case fixing metal fitting for fixing the outer case to the wall of the building; a reinforcing member fixed to the inner surface of the outer case; and a connecting metal fitting for connecting and fixing the case fixing metal fitting and the reinforcing member, the reinforcing member being fixed to the top plate, back plate, and left and right side plates of the outer case." (Claim 1) and also states, "...thereafter, four screws 33 passed through four screw holes 21d in vertical plate portion 21b of case fixing metal fitting 21 are screwed into wall surface W of the building, thereby fixing case fixing metal fitting 21 to wall surface W of the building (see Figure 3)" (paragraph
[0032] ). [Prior art documents] [Patent documents]
[0009] [Patent Document 1] Japanese Patent Application Publication No. 8-144363 [Patent Document 2] Japanese Patent Application Laid-Open No. 2003-64730 [Patent Document 3] Japanese Patent Application Laid-Open No. 2002-54188 [Patent Document 4] Japanese Patent Application Laid-Open No. 2011-241613 [Patent Document 5] JP 2018-31519 A Summary of the Invention [Problem to be solved by the invention]
[0010] As mentioned above, the technology for fixing items such as rainwater tanks to the wall of a building is well known. However, when installing a rainwater tank at a high point on a building, the fixing is not necessarily sufficient using conventional technology. In addition, there are problems in that it is difficult to accommodate the installation of rainwater tanks of different sizes.
[0011] The present invention aims to provide a structure for fixing an item to a wall surface, which can be firmly fixed to a wall surface even when the item, such as a rainwater tank, is installed at a high location on a building, and which can be applied to the installation of items of different sizes, and a wall fixing frame to be used for the fixing structure. [Means for solving the problem]
[0012] In order to solve the above problems, the present invention employs the following means. (1) A structure for fixing an item to a wall, which is used to install and fix an item to the wall of a building, in which a wall fixing frame for fixing the item to the wall is divided into four parts, left, right, top and bottom, and the two parts on the left and right sides are fixed to the wall, the lower part is formed in a frame shape, and both left and right ends are connected to the bottom ends of the two parts on the left and right sides, respectively, to place the item on, and the upper part is connected to the top ends of the two parts on the left and right sides, respectively, to support the back of the item. (2) A structure for fixing an item to a wall surface in which the item is installed and fixed using only the hollow wall surface as a fulcrum without contacting the bottom of the building or the ground, and in which the two parts on both the left and right sides of the wall fixing frame that fixes the item to the hollow wall surface are fixed to the hollow wall surface. (3) A structure for fixing an item to a wall surface as described in (1) or (2), wherein the item is a rainwater tank. (4) A structure for fixing an article to a wall surface according to any one of (1) to (3), wherein the article is rectangular and the lower part is U-shaped. (5) A structure for fixing any one of the articles (1) to (4) to a wall surface, in which the two parts on the left and right sides are fixed to the wall surface with screws. (6) The two parts on both sides have multiple screws arranged in a zigzag pattern to distribute the load and increase strength, in the structure for fixing items to a wall surface described in (5). (7) A structure for fixing an article to a wall surface of any of (1) to (6) above, in which the left and right ends of the frame-shaped lower part and the lower ends of the two left and right parts on both sides are connected by three screws arranged in a non-linear manner, thereby increasing strength. (8) A structure for fixing an article to a wall surface according to any one of (1) to (7), in which the upper part is provided with a fastener to be attached to the top surface of the article, thereby fixing the article. (9) A wall fixing frame used to install and fix square-shaped items on the wall of a building, the wall fixing frame being divided into four parts, left and right, top and bottom, and the two parts on the left and right that are fixed to the wall with screws have holes in a zigzag pattern for placing multiple screws. [Effects of the Invention]
[0013] By adopting the structure for fixing items to a wall and the wall fixing frame of the present invention, items such as rainwater tanks can be firmly fixed even when installed at high places on a building, and it has the effect of being applicable to the installation of items of different sizes. [Brief explanation of the drawings]
[0014] [Figure 1] FIG. 1 is a schematic diagram of a wall surface fixing frame used to fix an article such as a rainwater tank to a wall surface according to one embodiment of the present invention. [Figure 2] FIG. 2 is a photograph showing a structure for fixing a rainwater tank to a wall surface according to one embodiment of the present invention. [Figure 3] FIG. 3 is an external view showing a state in which a rainwater tank according to one embodiment of the present invention is fixed to a wall surface fixing frame. DETAILED DESCRIPTION OF THE INVENTION
[0015] A structure for fixing an article such as a rainwater tank to a wall surface and a wall surface fixing frame used in the fixing structure according to one embodiment of the present invention (hereinafter referred to as "this embodiment") will be described with reference to FIG.
[0016] In the article fixing structure of this embodiment, a wall-mounted frame 1 that fixes an article to the wall of a building is divided into four parts: left, right, top, and bottom. The two parts 2 and 3 on the left and right sides are fixed to the wall, the lower part 4 is formed in a frame shape, and the left and right ends 4b and 4d are connected to the bottom ends 2b and 3d of the two parts 2 and 3 on the left and right sides, respectively, to place the article on it, and the upper part 5 supports the back of the article by connecting the left and right ends 5a and 5c to the top ends 2a and 3c of the two parts 2 and 3 on the left and right sides, respectively.
[0017] In the article fixing structure according to this embodiment, the above-mentioned wall fixing frame 1 is used, so that an article can be installed and fixed using only the hollow wall surface as a fulcrum, without contacting the bottom of the building or the ground. That is, by fixing the two parts 2 and 3 on the left and right sides of the wall fixing frame 1, which fix the article to the hollow wall surface, to the hollow wall surface, the article can be firmly fixed to the hollow wall surface.
[0018] In this embodiment, the item is preferably a rainwater tank. By installing a rainwater tank on the wall of a building, especially on the hollow wall mentioned above, the height can be freely determined, and when installed at a high location, water can be sent to the point of use using potential energy without using electricity. Also, installing it at a higher location increases potential energy, which has the effect of increasing water supply pressure. We measured the water supply time of the toilet low tank and found that it met the manufacturer's standard (within 90 seconds). If a rainwater tank is installed at a high point on a building, it does not require electricity, so water can be secured even in the event of a disaster.
[0019] As shown in Figure 2, the rainwater tank is preferably rectangular, and more preferably a thin rectangular parallelepiped. A thin rectangular parallelepiped makes it easier to fix to the wall of a building using a wall mounting frame 1.
[0020] The frame-shaped lower part 4 of the wall-mounted frame 1 is preferably U-shaped to correspond to the rectangular shape of the rainwater tank. A rectangular (rectangular) rainwater tank can be placed on the U-shaped lower part 4.
[0021] The two parts 2 and 3 on both the left and right sides of the wall-mounted frame 1 are preferably fixed to the wall of the building with screws 10. As shown in Figure 1, it is more preferable to fix the part 2 on the right side with multiple screws 10 arranged in a zigzag pattern from the top end 2a to the bottom end 2b. By arranging multiple screws 10 in a zigzag pattern as described above, the load can be distributed and strength can be increased. The number of screws 10 is preferably five or more, and from the perspective of workability, it is preferable to limit the number to seven. The part 3 on the left side can also be fixed with screws 10 in the same way.
[0022] As shown in Figure 1, the right end 4b of the U-shaped lower part 4 of the wall-mounted frame 1 is connected to the lower end 2b of the right-side part 2, and the left end 4d of the U-shaped lower part 4 is connected to the lower end 3d of the left-side part 3. In the L-shaped connecting portion formed by the right part 2 and the lower part 4, it is preferable that the right end 4b of the lower part 4 be connected to the lower end 2b of the right part 2 with three screws 11 via the reinforcing member 6. It is more preferable to increase strength by connecting the three screws 11 in a non-linear manner. In FIG. 1, the right end 4b of the lower part 4 and the reinforcing member 6 are connected with six rivets 13. In the L-shaped connecting portion formed by the left part 3 and the lower part 4, it is also preferable that the right end 4d of the lower part 4 be connected to the lower end 3d of the right part 2 with three screws 11 via the reinforcing member 6.
[0023] As shown in Figure 1, the back of the item can be supported by connecting the right end 5a of the upper part 5 of the wall-mounted frame 1 to the upper end 2a of the right part 2 and the left end 5c of the upper part 5 to the upper end 3c of the left part 3. The connections are preferably made with screws 12.
[0024] Fig. 3 shows an external view of the rainwater tank according to this embodiment fixed to the wall-mounted frame. It is preferable to provide a fastener on the upper part 5 to be attached to the top surface of the rainwater tank, and to fix the rainwater tank with the fastener.
[0025] (Wall mounting frame material) The material of the wall-mounted frame is preferably plated steel (to provide corrosion resistance), and among these, stainless steel is more preferable from the viewpoint of strength.
[0026] (Handling items of different sizes) In order to accommodate items such as rainwater tanks of different sizes, multiple types of parts for the left and right sides, lower parts, and upper parts that make up the wall-mounted frame can be prepared, so that the appropriate part can be selected depending on the size of the rainwater tank, etc.
[0027] (Verification of fixed frame and screw load) For the wall-mounted frame shown in Figure 1, the frame and screw load were verified as follows. (a) The total weight of the tank was set at 1,300 N (tank body + fixed frame + parts), and it was confirmed that the frame structure and screws were capable of withstanding a load of more than three times Unwin's safety factor (3,900 N or more). (b) The load was increased from 1300N to 2600N to 3900N, etc. from above, below, and from the side, and the condition of the fixing frame and screws was checked. (c) The number of screws used to secure the frame to the wall was reduced from 7 on each side → 6 on each side, no screws above → 6 on each side, no screws below → 5 on each side, no screws above or below, and we checked whether the calculated values were consistent. (d) The number of fixing screws and rivets at the connecting part of the L-shaped part was reduced to two and two, respectively. (e) Because there was a risk of damage to the drinking water supply pipe due to deflection, the amount of deflection at both ends of the fixed frame was measured.
[0028] Neither the fixing frame nor the screws were damaged up to 3900N (safety factor 3). For the fixed frame, the deflection rate increased above 3900N, and the load no longer applied at 6400N, so testing was discontinued. When we checked the frame, we found that the L-shaped part of the frame was broken, so we considered reinforcing it. The number of fixing screws in the L-shaped section was increased from two to three, and the construction was made in a U-shape to increase strength. Strength has been increased by increasing the number of rivets from two in one row to three in each of the two upper and lower rows. We re-tested the fixed frame and found no problems with the 6400N. There were no problems with the screws, even at the calculated value of 6400N.
[0029] (Verification results) The measurement results of the deflection (displacement) are shown in Table 1.
[0030] [Table 1] [Industrial Applicability]
[0031] The structure for fixing an item to a wall surface and the wall fixing frame according to the present invention can be used to fix a rainwater tank, an air conditioner outdoor unit, etc. to a wall surface. [Explanation of symbols]
[0032] 1 Wall-mounted frame 2 Right side parts 2a Top edge of the right part 2b Bottom edge of the right part 3 Left side parts 3c Top edge of left part 3d Bottom edge of the left part 4 Lower parts 4b Right end of the lower part 4d Left end of the lower part 5 Upper part 5a Right end of the upper part 5c Left end of upper part 6 Reinforcement members 10 Screw holes for fixing the right part 2 to the wall 11 Screws connecting the right end 4b of the lower part 4 to the lower end 2b of the right part 2 and the left end 4d of the lower part 4 to the lower end 3d of the left part 3 12 Screws connecting the right end 5a of the upper part 5 to the upper end 2a of the right part 2 and the left end 5c of the upper part 5 to the upper end 3c of the left part 3 13 Rivets connecting the left and right ends 4b and 4d of the lower part 4 to the reinforcing member 6, respectively
Claims
1. A structure for fixing an item to a wall, which installs and fixes an item to the wall of a building, comprising: a wall fixing frame for fixing the item to the wall, which is divided into four parts, left, right, top, and bottom; the two parts on the left and right sides are fixed to the wall; the lower part is formed in a frame shape, and both left and right ends are connected to the bottom ends of the two parts on the left and right sides, respectively, to place the item on; and the upper part is connected to the top ends of the two parts on the left and right sides, respectively, to support the back of the item.
2. 2. A structure for fixing an item to a wall surface, in which an item is installed and fixed using only the hollow wall surface as a fulcrum without contacting the bottom of a building or the ground, wherein two parts on both the left and right sides of the wall fixing frame that fixes the item to the hollow wall surface are fixed to the hollow wall surface, as described in claim 1.
3. The structure for fixing an article to a wall surface according to claim 1, wherein the article is a rainwater tank.
4. 2. The structure for fixing an article to a wall surface according to claim 1, wherein the article is rectangular and the lower part is U-shaped.
5. The structure for fixing an article to a wall surface according to any one of claims 1 to 4, wherein the two parts on both the left and right sides are fixed to the wall surface with screws.
6. 6. The structure for fixing an article to a wall surface according to claim 5, wherein the two parts on both sides each have a plurality of screws arranged in a zigzag pattern to distribute the load and increase strength.
7. The structure for fixing an item to a wall surface as described in claim 1, wherein the left and right ends of the frame-shaped lower part and the lower ends of the two left and right parts are connected by three screws arranged in a non-linear manner to increase strength.
8. The structure for fixing an article to a wall surface according to claim 1 , wherein the upper part is provided with a stopper that is attached to an upper surface of the article to fix the article.
9. This wall fixing frame is used to install and fix a square-shaped article on the wall of a building, and is divided into four parts, left and right, top and bottom, and the two parts on both the left and right sides that are fixed to the wall with screws have holes in a zigzag pattern for arranging a plurality of screws.
Citation Information
Patent Citations
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