Fence mounting structure

Abstract

To provide a fence installation structure capable of installing a new fence while keeping the existing fence in place.SOLUTION: A fence installation structure 1 is a fence installation structure 1 for attaching a new fence 3 to an existing fence 2 composed of vertical bars 22 and horizontal bars 23 arranged in a grid pattern. The fence installation structure includes: a pair of fence connection faces 411 that have a certain distance and face each other; a connecting part 412 for connecting the pair of fence connection faces 411; an existing fence support part 42 for supporting the existing fence 2 sandwiching between one of the fence connection faces 411 of the pair of fence connection faces 411; and a pair of fixed parts 43 that are arranged to nip a horizontal bar 23 from above and below, which penetrates the existing fence support part 42 and are fixed to at least one fence connection face 411.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present disclosure relates to a fence mounting structure. [Background technology]

[0002] BACKGROUND ART Conventionally, a structure has been known in which a new fence is fixed by attaching metal fittings to the posts of an existing fence. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2006-225892 Summary of the Invention [Problem to be solved by the invention]

[0004] Even if there was no problem with the existing fence itself, there were requests to install a new fence while leaving the existing fence in place, such as by installing board-shaped panels to provide privacy or by installing a fence that is taller than the existing fence. [Means for solving the problem]

[0005] The present disclosure relates to a fence mounting structure for attaching a new fence to an existing fence composed of vertical and horizontal reinforcement bars arranged in a grid pattern, comprising: a pair of fence connection surfaces facing each other at a predetermined distance; a connecting part connecting the pair of fence connection surfaces; an existing fence support part that supports the existing fence by sandwiching it between itself and one of the pair of fence connection surfaces; and a pair of fixing parts that are arranged to sandwich the horizontal reinforcement bars from above and below, and that pass through the existing fence support parts and are fixed to at least one of the fence connection surfaces. [Brief explanation of the drawings]

[0006] [Figure 1]1 is a front view of the fence mounting structure of the first embodiment as viewed from outside the site. FIG. [Figure 2] FIG. 1 is a plan view of a fence mounting structure according to a first embodiment. [Figure 3] FIG. 1 is a side view of a fence mounting structure according to a first embodiment. [Figure 4A] This is a view of one of the fence connection surfaces from outside the site. [Figure 4B] This is a view of the other fence connection surface and the existing fence support part from inside the site. [Figure 4C] FIG. [Figure 5] FIG. 10 is a front view of the fence mounting structure of the second embodiment as viewed from outside the site. [Figure 6] FIG. 10 is a plan view of the fence mounting structure of the second embodiment. [Figure 7] FIG. 10 is a side view of the fence mounting structure of the second embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0007] A first embodiment of the present disclosure will be described in detail below with reference to the drawings. As shown in FIG. 1 , in a fence mounting structure 1 of the first embodiment, a new fence 3 is disposed outside the site where an existing fence 2 is to be installed. A fence 10 is constructed by attaching a new fence to the existing fence 2. The front side of FIG. 1 indicates the outside of the site, and the back side indicates the inside of the site. In this specification, the side of the site separated by the fence 10 is referred to as the inside, and the side opposite the site is referred to as the outside. Outside the site may be, for example, a road surface or the site of another owner. The thickness direction of the fence 10 refers to the direction from the inside to the outside of the site. The fence mounting structure 1 includes an existing fence 2, a new fence 3, and a connection portion 4.

[0008] The existing fence 2 is installed to separate an outdoor area and includes posts 21, vertical reinforcement bars 22, and horizontal reinforcement bars 23. The posts 21 are long, rectangular cylindrical members fixed to an installation surface 24 and extending in the vertical direction. The installation surface 24 is the upper surface of the foundation of the fence to which the posts 21 are fixed. In this embodiment, the installation surface 24 is formed above the ground. The vertical reinforcement bars 22 and horizontal reinforcement bars 23 are strips of metal with smaller outer diameters than the posts 21. The vertical reinforcement bars 22 extend in the vertical direction, and the horizontal reinforcement bars 23 extend in the left-right direction when viewed from the front of the fence 10, and are arranged so as to intersect with each other. The vertical reinforcement bars 22 and horizontal reinforcement bars 23 are arranged in a lattice pattern and supported by the posts 21.

[0009] The new fence 3 is a separate component from the existing fence 2. The new fence 3 has a frame 31 and a panel 32. The frame 31 has a pair of vertical frames 311 extending vertically at both ends of the new fence 3 in a front view, and horizontal frames 312 connecting the vertical frames 311 at the upper and lower ends. Overall, the frame 31 forms a substantially rectangular edge. The lower horizontal frame 312 forms the lower end of the new fence 3, which is supported by the installation surface 24 of the existing fence 2. The panel 32 is formed by arranging thin, rectangular plates 321, each extending horizontally, vertically. Gaps 322 are formed between the plates 321. Because the panel 32 is formed by arranging the plates 321, attaching the new fence 3 to the existing lattice-like fence 2 makes it difficult to see the site from the outside.

[0010] The connecting part 4 is a metal fitting that connects and secures the existing fence 2 and the new fence 3. The connecting part 4 has a concave member 41, an existing fence support part 42, a first fixing part 431, and a second fixing part 432.

[0011] 2, the recessed member 41 opens toward the left and right ends of the new fence 3 in a front view. The recessed member 41 has a pair of fence connection surfaces 411 and a connecting portion 412.

[0012] As shown in Figure 2, one of the pair of fence connection surfaces 411 extends along the surface of the front surface 3a of the newly constructed fence 3, and the other extends along the surface of the back surface 3b of the newly constructed fence 3, and they are arranged facing each other with a specified distance between them. The front surface 3a and back surface 3b are such that the front surface faces outside the premises and the back surface faces inside the premises. The new fence 3 is arranged between the pair of fence connection surfaces 411. The pair of fence connection surfaces 411 have the shape of a roughly rectangular plate. Screw holes for inserting screws are formed in the pair of fence connection surfaces 411.

[0013] The connecting portion 412 connects the pair of fence connection surfaces 411. More specifically, the connecting portion 412 extends along the thickness direction of the fence 10 and connects the outer left-right ends of the pair of fence connection surfaces. The connecting portion 412 has a generally rectangular plate shape with larger length and width dimensions than each of the fence connection surfaces 411. The thickness dimension of the connecting portion 412 is larger than the thickness dimension of the vertical frame 311 of the new fence 3. As shown in FIG. 2 , the left-right ends of the new fence 3, i.e., the pair of vertical frames 311, are placed within the opening of the concave member 41.

[0014] As shown in FIG. 4B , the existing fence support part 42 is a vertically long plate whose length and width dimensions are smaller than those of the fence connection surface 411 of the concave member 41. As shown in FIG. 2 , the existing fence support part 42 supports the existing fence 2 by sandwiching it between itself and one of the pair of fence connection surfaces 411. Specifically, the existing fence support part 42 is fixed in place by abutting it against the existing fence 2 at a position facing one of the pair of fence connection surfaces 411. Here, the one fence connection surface 411 is the fence connection surface 411 that is located on the back surface 3b side of the existing fence 2. Screw holes for inserting the pair of fixing parts 43 are formed in the existing fence support part 42.

[0015] The pair of fixing portions 43 are made up of bolts having a shaft head and a shaft portion. The pair of fixing portions 43 have a first fixing portion 431 and a second fixing portion 432. As shown in FIG. 3, the pair of fixing portions 43 are arranged so as to sandwich the horizontal bars 23 from above and below. The pair of fixing portions 43 penetrate the existing fence support portion 42 and penetrate both of the pair of fence connection surfaces 411. By penetrating both fence connection surfaces 411, the pair of fixing portions 43 also penetrate the vertical frames 311 of the new fence 3, firmly fixing the existing fence 2 and the new fence 3 together.

[0016] The first fixing portion 431 penetrates and fixes the existing fence 2, the new fence 3, the pair of fence connection surfaces 411 of the concave member 41, and the existing fence support portion 42. As shown in Figure 3, the first fixing portion 431 is placed on the horizontal bars 23 of the existing fence 2 and is engaged and fixed.

[0017] The second fixing portion 432 penetrates and fixes the existing fence 2, the new fence 3, the pair of fence connection surfaces 411 of the concave member 41, and the existing fence support portion 42. The second fixing portion 432 has the same shape as the first fixing portion 431, and is positioned below the first fixing portion 431. The second fixing portion 432 is fixed with the horizontal reinforcement 23 positioned between it and the first fixing portion 431.

[0018] Fig. 4A is a view of the fence connection surface 411 from the front surface 3a of the new fence 3. The axle heads of a first fixing part 431 and a second fixing part 432, described below, are arranged on the fence connection surface 411 on the front surface 3a side. Fig. 4B is a view of the fence connection surface 411 from the back surface 3b of the new fence 3. The existing fence support part 42 is arranged on the inside-of-the-premises side of the fence connection surface 411 on the back surface 3b side. The ends of the axles of the first fixing part 431 and the second fixing part 432 pass through the fence connection surface 411 and the existing fence support part 42 and are fastened by nuts 46. Fig. 4C is a view of the concave member 41, the existing fence support part 42, the first fixing part 431, and the second fixing part 432, viewed from the side.

[0019] The number of horizontal bars 23 disposed between the first fixing portion 431 and the second fixing portion 432 only needs to be at least one. For example, as shown in FIG. 3 , in this embodiment, the upper and lower ends of the existing fence 2 have portions that curve toward the outside of the site. At the upper end of the existing fence 2, two horizontal bars 23 are disposed between the first fixing portion 431 and the second fixing portion 432. The two horizontal bars 23 are sandwiched between the first fixing portion 431 and the second fixing portion 432. Meanwhile, at the lower end of the existing fence 2, one horizontal bar 23 is disposed between the first fixing portion 431 and the second fixing portion 432. As long as the horizontal bar 23 is disposed in a position where it is sandwiched between the top and bottom of a pair of fixing portions 43, the pair of fixing portions 43 and the horizontal bar 23 do not need to be in contact with each other and sandwiched between them. When the first fixing portion 431 is engaged on the horizontal bar 23, the concave member 41 and the existing fence support portion 42 are fixed together with the existing fence 2 sandwiched between them. Since the first fixing portion 431 and the second fixing portion 432 are fixed at two points, namely, the top and bottom, the connection is strong.

[0020] The first embodiment offers the following advantages. The fence mounting structure 1 is configured to mount a new fence 3 to an existing fence 2 composed of vertical reinforcement bars 22 and horizontal reinforcement bars 23 arranged in a grid pattern. The fence mounting structure 1 includes a pair of fence connection surfaces 411 facing each other at a predetermined distance, a connecting portion 412 connecting the pair of fence connection surfaces 411, an existing fence support portion 42 that supports the existing fence 2 by sandwiching it between itself and one of the pair of fence connection surfaces 411, and a pair of fixing portions 43 that are positioned to sandwich the horizontal reinforcement bars 23 from above and below, penetrate the existing fence support portions 42, and are fixed to the pair of fence connection surfaces 411. The pair of fixing portions 43 and the fence connection surfaces 411 are fixed to the existing fence 2 via the existing fence support portions 42. Fixing the fence connection surface 411 to the new fence 3 allows the existing fence 2 and the new fence 3 to be connected and the fence 10 to be installed without removing or partially replacing the existing fence. This makes it possible to easily add a new fence 3 without large-scale construction or high costs. By adding a new fence 3 to an existing fence 2, it becomes possible to conceal the site with a plate-like panel to make it less visible, or to surround the site with a new fence 3 of your choice, which increases convenience.

[0021] According to this embodiment, the new fence 3 is placed outside the site where the existing fence 2 is to be installed, between a pair of fence connection surfaces 411. By placing the new fence 3 outside the existing fence 2, the aesthetic appearance when viewed from the outside is improved. In this case, because the new fence 3 is placed between the pair of fence connection surfaces 411, it is possible to reduce the gap between the existing fence 2 and the new fence 3. Since the outside of the existing fence 2 is often a road surface or someone else's site, reducing the gap between the existing fence 2 and the new fence 3 makes it possible to reduce the area where the structure extends outside the site.

[0022] According to this embodiment, the lower end of the new fence 3 is supported by the installation surface 24 on which the existing fence 2 is to be installed. Simply by connecting the new fence 3 to the existing fence 2 in the thickness direction of the fence 10, the weight of the new fence 3 itself is supported by the installation surface 24, thereby ensuring sufficient structural strength for the fence installation structure 1. This makes it possible to easily install the new fence 3 to the existing fence while also ensuring safety and durability.

[0023] The present disclosure is not limited to the above-described embodiments, and modifications, improvements, and the like are included within the scope of achieving the objectives of the present disclosure. In a fence mounting structure 1A according to a second embodiment shown in FIG. 5, a fence 10A is constructed by placing a new fence 3 inside the site where an existing fence 2 is to be installed. As shown in FIG. 6, the concave member 41 is connected with one of a pair of fence connection surfaces 411 abutting against the existing fence 2, and the other abutting against the vertical frame 311 of the new fence 3. In this state, the first fixing portion 431 and the second fixing portion 432 have their axle heads positioned inside the site and their axles extending from the site to the outside. The first fixing portion 431 and the second fixing portion 432 penetrate the existing fence 2, the new fence 3, the pair of fence connection surfaces 411, and the existing fence support portion 42, connecting and fixing the new fence 3 to the existing fence 2.

[0024] As shown in Figures 6 and 7 , when a new fence 3 is placed inside an existing fence 2, the posts 21 of the existing fence 2 protrude, resulting in portions where the new fence 3 cannot be directly attached to the lattice of the vertical reinforcement bars 22 and horizontal reinforcement bars 23 of the existing fence 2. Here, the thickness dimension T1 connecting the outer surfaces of a pair of fence connection surfaces 411 is configured to be larger than the thickness dimension T2 of the posts 21. The imaginary lines around the posts 21 shown in Figure 6 are the lines of the end caps disposed on the tops of the posts. With this configuration, by fixing one end of the fence connection surface 411 to the inside of the existing fence 2 and fixing the other end of the fence connection surface 411 to the new fence 3 via the connecting part 412, the new fence 3 is positioned away from the existing fence 2 by the thickness dimension T1 connecting the outer surfaces of the pair of fence connection surfaces 411. Furthermore, the thickness dimension T2 of the posts 21 is smaller than the dimension T1 connecting the outer surfaces of the pair of fence connection surfaces 411. Therefore, the new fence 3 can be placed inside the existing fence without the need for any extra parts other than the connecting part 4.

[0025] According to the second embodiment, the new fence 3 can be seen when looking outside the site from a building on the site, improving the scenery seen by people on the site. Furthermore, even if the new fence 3 is installed avoiding the posts 21 of the existing fence 2, there is no concern that the structure will extend outside the site because the new fence 3 is located within the site.

[0026] In the above embodiment, a configuration has been described in which the pair of fixing parts 43 are fixed to both of the pair of fence connection surfaces 411. However, it is sufficient that the pair of fixing parts 43 penetrate the existing fence support part 42 and are fixed to at least one of the fence connection surfaces 411. Fixation to the other fence connection surface may be performed by other means, such as engagement or fitting, or another bolt or the like may be used. [Explanation of symbols]

[0027] 1 fence mounting structure, 2 existing fence, 3 new fence, 4 connection part, 21 support, 22 vertical reinforcement, 23 horizontal reinforcement, 24 installation surface, 41 concave member, 42 existing fence support part, 43 pair of fixing parts, 411 pair of fence connection surfaces, 412 connecting part

Claims

1. A fence mounting structure for attaching a new fence to an existing fence consisting of vertical and horizontal reinforcement bars arranged in a lattice pattern, a pair of fence connection portions facing each other with a predetermined gap therebetween; a connecting portion that connects the pair of fence connecting portions; an existing fence support portion that supports the existing fence by sandwiching it between itself and one of the pair of fence connection portions; a pair of fixing parts that are arranged so as to sandwich the horizontal reinforcement from above and below, and that penetrate the existing fence support part and are fixed to at least one of the fence connection parts; A fence mounting structure in which the existing fence support portion is a separate member from the pair of fence connection portions.

2. 2. The fence mounting structure according to claim 1, wherein the new fence is disposed outside the site on which the existing fence is to be installed and between the pair of fence connection portions.

3. The new fence is placed inside the site where the existing fence is to be installed, 2. The fence mounting structure according to claim 1, wherein one of the pair of fence connecting portions is fixed in a state in which it abuts against the existing fence and the other fence connecting portion is fixed in a state in which it abuts against the new fence.

4. The existing fence has supports that extend in the vertical direction and support the vertical reinforcement and the horizontal reinforcement. The fence mounting structure according to claim 3 , wherein a dimension connecting the outer surfaces of the pair of fence connecting portions is greater than a dimension of the post in the thickness direction.

5. 5. The fence mounting structure according to claim 1, wherein the lower end of the new fence is supported on an installation surface on which the existing fence is to be installed.

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