Fence materials and fence structures

Abstract

This lightweight fence material allows for the construction of fence structures with reduced labor and time, even in narrow roads or on narrow plots of land. It provides a sense of solidity while also offering high resistance to wind pressure even at large heights. [Solution] The fence material 1 comprises a hollow fence panel 10, a long rod-shaped member 30 through which the fence panel 10 is inserted and which has male threads 30m formed at least near its upper and lower ends, a connecting pipe 50 which is a cylindrical member with female threads 50f formed on its inner surface along its entire length and which screws a portion of the male threads 30m near the lower end of the long rod-shaped member 30 to the female threads 50f, an anchor shaft 40 which has male threads 40m formed with the same configuration as the long rod-shaped member 30 and which screws at least a portion to the remaining part of the female threads 50f, and a female thread member 70 which fastens the long rod-shaped member 30 to the fence panel 10 by screwing into the male threads 30m near the upper end of the long rod-shaped member 30.

Description

Technical Field

[0001] The present invention relates to a wall material and a wall structure constructed using the wall material.

Background Art

[0002] As a wall provided at the boundary with an adjacent house, the boundary between a house and a road, etc., to prevent the entry of others and block the view, conventionally, a concrete block wall or a wet concrete wall in which concrete is placed on site has been widely used. In recent years, a dry concrete wall in which precast concrete panels are manufactured in a factory, transported to the site, and constructed has also been used.

[0003] However, in the case of a concrete block wall, since steel bars are arranged vertically and horizontally and concrete blocks are stacked while filling with mortar, a great deal of labor and time are required for on-site work. Also, in the case of a wet concrete wall, after assembling steel bars vertically and horizontally, a formwork is installed so as to sandwich the steel bars, concrete is poured into the formwork, and the formwork is removed after the concrete has hardened and dried. A great deal of labor and time are required for the on-site work. On the other hand, in the case of a dry concrete wall, although the time for hardening and drying concrete on site can be saved and the construction period can be shortened, there is a problem that a large transport vehicle and a crane are required, and a large number of workers are needed because precast concrete panels, which are heavy objects, are transported to the site and constructed.

[0004] In addition, in places where the surrounding road width is narrow or the surplus site area is small, where large transport vehicles and cranes cannot enter, there is a problem that a wet concrete wall that requires a large formwork or a dry concrete wall using large precast concrete panels cannot be constructed.

[0005] On the other hand, metal and wooden fences (nets, railings, and board enclosures) can be constructed with relatively little effort or time, even on narrow roads or small plots of land. However, they are not favored by those who seek a more substantial and imposing appearance in their walls.

[0006] Therefore, the applicant has previously proposed and implemented a wall structure and wall materials that can be constructed with reduced labor and time even when the road width or site is narrow, while also giving a sense of solidity (see Patent Documents 1-3). These wall materials consist of multiple wall panels with a hollow structure and through holes that penetrate vertically, and long rod-shaped members that are inserted through the through holes. The wall structure is constructed by stacking the multiple wall panels vertically so that the central axes of their respective through holes are on the same line, then inserting the long rod-shaped members through the through holes of each wall panel as if piercing the multiple wall panels, and burying the lower ends of the long rod-shaped members in the foundation.

[0007] The fences described in these Patent Documents 1 to 3 are composed of lightweight, hollow fence panels. Since the fence panels are manufactured in advance at a factory and can be transported by a small number of workers, construction is possible even in confined spaces, reducing labor and time. Furthermore, because the hollow structure of the fence panels is not apparent from the outside, it is possible to construct a fence that gives the impression of solidity. Moreover, while heavy fences such as concrete block walls and concrete walls, if they collapse due to an earthquake or other event, can cause severe damage if someone is trapped underneath, and are difficult to remove by hand, potentially blocking roads and hindering the movement of people and emergency vehicles, fence structures composed of lightweight fence panels have the advantage of having a lower risk of such problems.

[0008] Furthermore, since the fence structures described in Patent Documents 1 to 3 are composed of multiple fence panels stacked vertically, it can be said that the fence components are divided vertically. Therefore, the fence panels can tilt slightly through the gaps between the vertically stacked fence panels. As a result, the fence itself can flex, which has the advantage of being able to withstand wind pressure.

[0009] However, in the above-mentioned wall structure, where the wall's components are divided vertically, the reality is that the total height of the wall is limited to about 160 cm when considering its mechanical strength. When a wall is built on a narrow plot of land, the function of the wall as a "screen" to protect privacy is often considered important due to the close proximity to neighboring houses. In other words, there was a demand for a wall structure that could be built with less effort and time even when the road width and plot of land are narrow, yet still give a sense of solidity, and that could withstand wind pressure even at a large height. [Prior art documents] [Patent Documents]

[0010] [Patent Document 1] Patent No. 6883317 [Patent Document 2] Patent No. 7431442 [Patent Document 3] Japanese Patent Publication No. 2022-165489 [Overview of the project] [Problems that the invention aims to solve]

[0011] Therefore, in view of the above circumstances, the present invention aims to provide a lightweight fence material that can reduce labor and time required to construct a fence structure even when the road width or site is narrow, while still giving a sense of solidity, and a fence material that has high resistance to wind pressure even when the total height is large, as well as a fence structure constructed using said fence material. [Means for solving the problem]

[0012] To solve the above problems, the fence material according to the present invention is "A hollow structure fence panel, At least near the upper and lower ends, male threads are formed on the elongated rod-shaped member through which the fence panel is inserted, A cylindrical member having female threads formed on its inner surface along its entire length, and a connecting pipe having a male thread near the lower end of the long rod-shaped member and a part of the female threads screwed together, An anchor shaft having a male thread formed on it that has the same configuration as the long rod-shaped member, and at least a portion of it being screwed into the remaining part of the female thread, The female screw member that fastens the long rod-shaped member to the wall panel is screwed into the male screw near the upper end of the long rod-shaped member. It is "equipped with."

[0013] By using the fence materials in this configuration, a fence structure with the following configuration can be constructed: "This is a fence structure constructed using the fence materials described above." The entire anchor shaft and a portion of the connecting pipe are embedded in the foundation. This fence structure is characterized in that the fence panel is supported by the foundation, with the connecting pipe, which protrudes upward from the upper end surface of the foundation, inserted into the interior of the fence panel.

[0014] In this fence structure, the components that fix the fence panels to the foundation are divided into an upper elongated rod-shaped member and a lower anchor shaft. The anchor shaft can be pre-embedded deeply in the foundation. On the other hand, the elongated rod-shaped member can be used to insert the fence panels from above after the fence panels have been supported in the foundation. While it is difficult to embed the rod-shaped member deeply in the foundation on its own, it is integrated with the anchor shaft, which is deeply embedded in the foundation, via a connecting pipe. In this way, the elongated rod-shaped member integrated with the anchor shaft allows the fence panels to be fixed very firmly to the foundation, making it possible to construct a fence structure with high wind pressure resistance even with a large fence panel height. Therefore, it is possible to construct a tall fence structure that fully functions as a "screen".

[0015] Furthermore, since the wall panels can be manufactured in advance at a factory, the construction of the wall structure can be carried out with significantly less labor and time compared to conventional concrete block walls or wet-process concrete walls.

[0016] In addition, since the wall panel has a hollow structure, it is lightweight. Therefore, depending on the size setting, it can be manually carried by workers. As a result, even at a construction site where the road width and site area are narrow and large transport vehicles or cranes cannot enter, the wall structure can be constructed without problems. Also, since each of the wall panels constituting the wall is lightweight, even if the wall collapses due to an earthquake or the like, the damage can be minimized and it can be easily removed and transported manually.

[0017] Furthermore, although the wall panel has a hollow structure, it cannot be distinguished from a solid wall structure from the appearance, and since its thickness is larger than that of a fence made of a net or a fence, a wall giving a substantial feeling can be constructed.

[0018] In addition to the above configuration, the wall material according to the present invention "a male screw is formed on at least a part of the outer peripheral surface of the connecting pipe, and further includes a base plate having a female screw hole that engages with the male screw of the connecting pipe".

[0019] By using the wall material of this configuration, a wall structure of the following configuration is constructed. That is, "a wall structure constructed using the wall material described above, where the base plate is placed on the upper end surface of the foundation part, and the entire anchor shaft and a part of the connecting pipe are embedded in the foundation part, and the wall panel is placed on the base plate with the connecting pipe of the part protruding upward from the upper end surface of the foundation part inserted into the inside of the wall panel".

[0020] As described above, in the connecting pipe in which the male screw of the anchor shaft is screwed with its own female screw, a part of the lower end side is buried in the base part, and the upper end side protrudes upward from the upper end surface of the base part. In this configuration, male screws are formed on at least a part of the outer peripheral surface of the connecting pipe, and a base plate having a female screw hole that is screwed with this male screw is placed on the upper end surface of the base part. Therefore, the work of positioning the connecting pipe so that the upper end side protrudes upward from the upper end surface of the base part, as described above, becomes easy.

Effect of the Invention

[0021] As described above, according to the present invention, even when the road width or the site is narrow, it is a lightweight fence material that can construct a fence structure with reduced labor and time, while giving a sense of solidity, and a fence material with high resistance to wind pressure even when the total height is increased, and a fence structure constructed using the fence material can be provided.

Brief Description of the Drawings

[0022] [Figure 1] It is an exploded perspective view of a fence structure according to an embodiment of the present invention. [Figure 2] It is a cross-sectional view obtained by cutting the fence structure of FIG. 1 in the vertical direction. [Figure 3] It is an exploded perspective view of a part of the frame body in the fence panel constituting the fence structure of FIG. 1. [Figure 4] It is a perspective view of the connecting pipe, which is a component of the fence structure of FIG. 1, cut.

Modes for Carrying Out the Invention

[0023] Hereinafter, the fence material 1, which is a specific embodiment of the present invention, and the fence structure constructed using the fence material 1 will be described with reference to the drawings.

[0024] First, let's explain the composition of the fence material 1. The fence material 1 comprises a fence panel 10, a long rod-shaped member 30, an anchor shaft 40, a connecting pipe 50, a base plate 60, a female screw member 70, and a top cover member 80. Here, the vertical direction in the fence material 1 refers to the vertical direction when the fence material 1 is constructing the fence structure. The direction from one of the two areas partitioned by the fence to the other is called the front-to-back direction, and in the front-to-back direction, the side of the fence structure that is the client's area is called the front, and the opposite side is called the rear. Furthermore, the vertical length of each member constituting the fence panel 10 is called the "height," and the length in the front-to-back direction is called the "thickness." The direction perpendicular to both the front-to-back direction and the vertical direction is called the width direction.

[0025] The fence panel 10 comprises a frame 11 and two covering panels 12. The frame 11 is a rectangular frame in shape, with both ends of an upper horizontal member 21 and a lower horizontal member 22 connected by vertical members 23. The frame 11 further comprises two rectangular tube members 25. These rectangular tube members 25 are parallel to the vertical members 23, and their upper and lower ends are connected to the upper horizontal member 21 and the lower horizontal member 22, respectively. Specifically, the upper horizontal member 21 is divided into three upper horizontal members 21a, 21b, and 21c, and the lower horizontal member 22 is divided into three lower horizontal members 22a, 22b, and 22c. The upper end of one rectangular tube member 25 is connected between the upper horizontal member 21a and the upper horizontal member 21b, and the lower end of that rectangular tube member 25 is connected between the lower horizontal member 22a and the lower horizontal member 22b. Furthermore, the upper end of another rectangular tube member 25 is connected between the upper horizontal member 21b and the upper horizontal member 21c, and the lower end of that rectangular tube member 25 is connected between the lower horizontal member 22b and the lower horizontal member 22c.

[0026] Furthermore, the wall panel 10 is equipped with reinforcing horizontal members 27 and 28 to reinforce the mechanical strength of the frame 11. The reinforcing horizontal member 27 connects the vertical member 23 to the adjacent rectangular tube member 25, and the reinforcing horizontal member 28 connects the two rectangular tube members 25.

[0027] The upper ends of each of the two rectangular tube members 25 are covered by an upper cover member 25u that is flush with the upper surface of the upper horizontal member 21, and the lower ends of each of the two rectangular tube members 25 are covered by a lower cover member 25b that is flush with the lower surface of the lower horizontal member 22. A circular upper cover hole 25h is provided through the center of the upper cover member 25u, and a circular lower cover hole 25p is provided through the center of the lower cover member 25b.

[0028] All components constituting the frame 11 are made of aluminum. The covering plate material 12 is made of aluminum or resin. The covering plate material 12 is a rectangular flat plate, and its shape and size are the same as the outer shape of the frame 11. The fence panel 10 is formed by one of the two covering plate materials 12 covering the frame 11 from the front and the other covering the frame 11 from the rear. In the frame 11, the upper horizontal member 21 and the lower horizontal member 22 are separated (the distance between them is the length of the rectangular tube member 25 minus the height of the upper horizontal member 21 and the lower horizontal member 22), the vertical member 23 and the rectangular tube member 25 are separated (the distance between them is the length of the upper horizontal members 21a, 21c, or the length of the lower horizontal members 22a, 22c), and the two rectangular tube members 25 are also separated (the distance between them is the length of the upper horizontal member 21b, or the length of the lower horizontal member 22b). Therefore, the wall panel 10 has a hollow structure. Note that, before constructing the wall structure, the front covering plate 12 may not cover the frame 11.

[0029] If the dimensions of the fence panel 10 are, for example, 190cm to 210cm in height, 90cm to 110cm in width, and 10cm to 30cm in thickness, then one or two workers can easily transport a single fence panel 10 by hand. In the fence structures of Patent Documents 1 to 3, the fence panel 10 was a horizontally elongated panel, with the width being longer than the height, whereas the fence panel 10 of this embodiment is a vertically elongated panel, with the height being greater than the width.

[0030] The elongated rod-shaped member 30 is a round rod member with a diameter of 25 mm to 35 mm, and in this embodiment, it is formed from a composite material of glass fiber and resin. The elongated rod-shaped member 30 only needs to have male threads 30m formed on the outer circumferential surface of at least both ends, but in this embodiment, male threads 30m are formed on the outer circumferential surface along its entire length.

[0031] The anchor shaft 40 is a round bar member with the same diameter as the elongated bar member 30, but shorter in length than the elongated bar member 30. The anchor shaft 40 has male threads 40m formed on its outer surface along its entire length. The male threads 30m of the elongated bar member 30 and the male threads 40m of the anchor shaft 40 have the same thread size, pitch, and orientation.

[0032] The connecting pipe 50 is a cylindrical pipe, and female threads 50f are formed on its inner circumferential surface 51 along its entire length. The female threads 50f of the connecting pipe 50 are screwed into the male threads 30m of the long rod-shaped member 30 and the male threads 40m of the anchor shaft 40. In addition, male threads 50m are formed on the outer circumferential surface 52 of the connecting pipe 50 only at one end. The length of the portion where the male threads 50m are formed can be 30% to 45% of the total length of the connecting pipe 50. Furthermore, the diameters of the upper cover holes 25h and lower cover holes 25p, which are drilled through the upper cover material 25u and lower cover material 25b, respectively, in the wall panel 10 are set to be slightly larger than the outer diameter of the connecting pipe 50.

[0033] The base plate 60 is a long, narrow rectangular flat plate. The length of the long side of the base plate 60 is the same as the width of the fence panel 10, and the length of the short side of the base plate 60 is slightly less than the thickness (length in the front-to-back direction) of the fence panel 10. Two female screw holes 60f are provided through the base plate 60. The distance between the two female screw holes 60f is the same as the distance between the two upper cover holes 25h or the distance between the two lower cover holes 25p on the fence panel 10. The female threads of the female screw holes 60f are screwed into the male threads 50m of the connecting pipe 50.

[0034] The female thread member 70 is for fastening the upper end of the elongated rod-shaped member 30 to the fence panel 10. In this embodiment, the female thread member 70 is a combination of a cylindrical first female thread member 71 and a second female thread member 72 which is a nut. The first female thread member 71 has the same configuration as the connecting pipe 50, and the male thread 71m, which corresponds to the male thread 50m of the connecting pipe 50, is screwed into the female thread of the second female thread member 72 which is a nut. The outer circumferential surface of the second female thread member 72 is shaped to engage with fastening tools such as wrenches.

[0035] The top cover member 80 is a long member with a U-shaped cross-section that opens downwards, and the width of its opening is slightly larger than the thickness of the fence panel 10.

[0036] Next, the construction of a wall structure using the wall material 1 configured as described above will be explained. First, concrete is poured along the line where the wall will be constructed (the line that should be the boundary between the two areas) to form the foundation 90. The foundation 90 is formed with an L-shaped cross-section perpendicular to the direction in which the wall extends, with one side of the L-shape exposed from the ground surface G. Multiple foundation holes 95 of a predetermined depth are formed in the foundation 90. These foundation holes 95 can be formed by embedding sleeves in the concrete when the foundation 90 is poured. These sleeves may be removed before the concrete has completely hardened. The depth of the foundation holes 95 is longer than the total length of the anchor shaft 40. Also, the size of the foundation holes 95 in the direction perpendicular to the depth is large enough to fit the connecting pipe 50 completely. For multiple foundation holes 95, the distance between the central axes of adjacent foundation holes 95 is the same as the distance between the two upper cover holes 25h or the distance between the two lower cover holes 25p in the wall panel 10.

[0037] Furthermore, the portion of the foundation 90 in which the foundation hole 95 is formed may be made of concrete blocks, or the holes originally present in the concrete blocks may be used as the foundation hole 95. In this case, the concrete blocks can be joined to the concrete foundation in the ground by extending the reinforcing bars placed inside the concrete foundation in the ground to above the ground surface G and pulling them into the concrete blocks and burying them.

[0038] Once the foundation 90 is completed, filler material 95s such as mortar is filled into the foundation hole 95, and before it hardens, the anchor shaft 40 is inserted into the foundation hole 95. At this time, the male thread 40m near the upper end of the anchor shaft 40 is screwed into the female thread 50f on the inner surface of the connecting pipe 50 near the lower end, thereby attaching the connecting pipe 50 to the upper part of the anchor shaft 40. Simultaneously, the connecting pipe 50 is inserted into the female thread hole 60f of the base plate 60, and the male thread 50m of the connecting pipe 50 is screwed into the female thread of the female thread hole 60f. As a result, the anchor shaft 40 is inserted into the foundation hole 95 with the connecting pipe 50 and base plate 60 attached near the upper end.

[0039] Since the depth of the foundation hole 95 is greater than the total length of the anchor shaft 40, when the lower end of the anchor shaft 40 is brought into contact with the bottom of the foundation hole 95, the upper end of the anchor shaft 40 is positioned lower than the upper surface of the foundation 90, and the lower end of the connecting pipe 50 is also inserted into the filler material 95s that has been filled into the foundation hole 95. Then, the base plate 60, which has its own female screw hole 60f screwed into the male screw 50m of the connecting pipe 50, is placed on the upper surface of the foundation 90 with its longitudinal direction coinciding with the longitudinal direction of the foundation 90. Since the portion of the connecting pipe 50 in which the male thread 50m is formed occupies a certain length relative to the total length of the connecting pipe 50, by bringing the base plate 60 into contact with the upper end surface of the foundation 90, the base plate 60 can be positioned such that the male thread 50m of the connecting pipe 50 is screwed into the female thread hole 60f of the base plate 60, while the upper end of the connecting pipe 50 protrudes above the base plate 60.

[0040] When the filler material 95s in the foundation hole 95 hardens in this state, the entire anchor shaft 40 and a portion of the connecting pipe 50 connected to the vicinity of the upper end of the anchor shaft 40 are fixed to the foundation 90 while embedded in the filler material 95s. The anchor shaft 40 has male threads 40m formed along its entire length, and a portion of these is used to screw into the female threads 50f of the connecting pipe 50. However, the remaining male threads 40m have gaps between the threads into which the filler material 95s enters, increasing the contact area and acting like a fine wedge. As a result, the anchor shaft 40 is firmly fixed to the foundation 90 via the filler material 95s.

[0041] In this way, when the anchor shaft 40 and a portion of the connecting pipe 50 are fixed to the foundation 90, the base plate 60, which has a female screw hole 60f that is screwed into the male screw 50m of the connecting pipe 50, is also fixed to the foundation 90. In other words, the base plate 60 is firmly fixed to the foundation 90 via the connecting pipe 50 and the anchor shaft 40 without the need to be glued to the foundation 90.

[0042] In this state, the upper end of the connecting pipe 50 protrudes above the base plate 60, so the protruding portion is inserted into the lower cover hole 25p of the wall panel 10, and the wall panel 10 is placed on the foundation 90 and the base plate 60. Then, the lower end of the long rod-shaped member 30 is inserted into the upper cover hole 25h of the wall panel 10, thereby inserting the long rod-shaped member 30 through the wall panel 10 from above. At this time, the male thread 30m near the upper end of the long rod-shaped member 30 is screwed into the female thread on the inner surface of the first female thread member 71, thereby attaching the first female thread member 71 to the upper end of the long rod-shaped member 30.

[0043] Since the upper cover hole 25h communicates with the internal space of the rectangular tube member, the direction of travel of the elongated rod-shaped member 30 is guided by the inner circumferential wall of the rectangular tube member 25, and the lower end of the elongated rod-shaped member 30 extends downward from the fence panel 10 through the lower cover hole 25p and reaches the opening at the upper end of the connecting pipe 50. By rotating the elongated rod-shaped member 30, the male thread 30m near the lower end of the elongated rod-shaped member 30 is screwed into the female thread 50f formed on the inner circumferential surface of the connecting pipe 50, and the elongated rod-shaped member 30 is moved downward, bringing the lower end of the elongated rod-shaped member 30 into contact with the upper end of the anchor shaft 40 in the internal space of the connecting pipe 50. As a result, the elongated rod-shaped member 30 and the anchor shaft 40 are integrated via the connecting pipe 50, and the elongated rod-shaped member 30 is fixed to the foundation 90.

[0044] The length of the elongated rod-shaped member 30 is set such that, when the lower end of the elongated rod-shaped member 30 is in contact with the upper end of the anchor shaft 40 (whose lower end is in contact with the bottom of the foundation hole 95), the upper end of the elongated rod-shaped member 30 protrudes above the upper end surface of the wall panel 10. Therefore, even in the first female threaded member 71 attached to the upper end of the elongated rod-shaped member 30, a portion of the male thread 71m formed on its outer circumference at the upper end protrudes above the upper end surface of the wall panel 10. Thus, the second female threaded member 72, which is a nut, is fastened to the portion of the male thread 71m that protrudes above the upper end surface of the wall panel 10. At this time, a washer may be interposed between the upper end surface of the wall panel 10 and the second female threaded member 72. By fastening the second female threaded member 72 to the male thread 71m of the first female threaded member 71, the elongated rod-shaped member 30 is fastened to the wall panel 10 by the second female threaded member 72 via the first female threaded member 71. As a result, the wall panel 10 is firmly fixed to the foundation 90 via the anchor shaft 40, which is integrated with the elongated rod-shaped member 30 via the elongated rod-shaped member 30 and the connecting pipe 50.

[0045] Finally, the top cover member 80 is attached from above the wall panel 10. As a result, the first female threaded member 71 (the first female threaded member 71 that is screwed with the vicinity of the upper end of the long rod-shaped member 30) and the second female threaded member 72 that is screwed with it, which protrude upward from the upper end surface of the wall panel 10, are covered by the top cover member 80, resulting in a good appearance and preventing rainwater from flowing into the inside of the rectangular tube member 25 through the top cover hole 25h.

[0046] Through the above process, one of the wall panels 10 is fixed to the foundation 90. By repeating the same process, the wall panels 10 are connected in the lateral direction, thereby constructing a wall structure in which a wall composed of multiple wall panels 10 is supported by the foundation 90.

[0047] As described above, at the stage of fixing the wall panel 10 to the foundation 90, the covering plate material 12 for covering the frame 11 from the front may not yet be attached to the wall panel 10. In that case, after fixing the wall panel 10 to the foundation 90, the covering plate material 12 is attached to the frame 11 from the front. By doing so, wiring work to house electrical cords in the internal space of the wall panel 10 can be carried out at the construction site of the wall structure, and a wall structure equipped with electrical appliances such as security cameras, sensors, intercoms, and lighting can be constructed.

[0048] Since the wall panels 10 can be manufactured in advance as nearly finished products at the factory, the construction of the wall structure can be carried out with significantly less labor and time compared to conventional concrete block walls or wet-process concrete walls.

[0049] Furthermore, the wall panel 10 is extremely lightweight because the components constituting the frame 11 are made of aluminum and it has a hollow structure. The size configuration described above allows one or two workers to transport it manually. Therefore, even in construction sites with narrow roads or limited site area where large transport vehicles or cranes cannot enter, the wall structure can be constructed without problems. Additionally, because each wall panel 10 is lightweight, even if the wall collapses due to an earthquake or other event, the damage can be minimized, and the panels can be easily removed and transported by hand.

[0050] In addition, although the wall panel 10 has a hollow structure, it is indistinguishable from a solid wall structure from its appearance, and because its thickness is greater than that of a fence made of mesh or railings, it is possible to construct a wall that gives a sense of solidity.

[0051] Furthermore, while the fence structures in Patent Documents 1 to 3 consist of multiple horizontally elongated fence panels stacked vertically, the fence structure of this embodiment consists of a single vertically elongated fence panel 10 connected in the horizontal direction. In this embodiment, since the fence is not divided vertically, the mechanical strength of the fence itself is higher than that of a fence divided vertically. Therefore, if the fixing of the fence panel 10 to the foundation 90 can be strengthened, it is possible to construct a fence structure that is highly resistant to wind pressure while enhancing the function of the fence as a "screen" by increasing the height of the vertically elongated fence panel 10.

[0052] Here, if the height of the wall panels is increased, it becomes difficult to firmly fix the wall panels to the foundation using only the elongated rod-shaped members inserted vertically through the wall panels. Specifically, consider the case where the lower end of the elongated rod-shaped member is embedded in the foundation beforehand, and then the elongated rod-shaped member is inserted through the wall panels. In this case, since the elongated rod-shaped member is embedded in the foundation before the wall panels are supported by the foundation, it is possible to embed the lower end of the elongated rod-shaped member deeply into the foundation. However, when inserting the elongated rod-shaped member by bringing the wall panels close to the elongated rod-shaped member that has been embedded in the foundation beforehand from above, if the wall panels are horizontally elongated panels with a short height, it is possible to sequentially insert the elongated rod-shaped member through multiple wall panels. However, if the wall panels are panels with a large height, it becomes extremely difficult to insert the elongated rod-shaped member by bringing them close to the elongated rod-shaped member from above. This is because the wall panels with a large height must be lifted to a height greater than the height to which the elongated rod-shaped member extends above the ground surface.

[0053] On the other hand, when inserting the long rod-shaped member into the wall panel from above after the wall panel has been placed on the foundation, it is difficult to deeply bury the lower end of the long rod-shaped member in the foundation. This is because the work of burying the lower end of the long rod-shaped member in the foundation must be done while the foundation has not yet hardened, and it is difficult to increase the burying depth when the wall panel is in place above it.

[0054] In contrast, in this embodiment, the member that fixes the wall panel 10 to the foundation 90 is divided into an upper elongated rod-shaped member 30 and a lower anchor shaft 40. The anchor shaft 40 can be buried deep in the foundation 90 in advance. On the other hand, the elongated rod-shaped member 30 is inserted through the wall panel 10 from above after the wall panel 10 has been placed on the foundation 90, and it is difficult for the elongated rod-shaped member 30 itself to be buried deep in the foundation 90, but it is integrated with the anchor shaft 40 which is buried deep in the foundation 90 via a connecting pipe 50. As a result, the wall panel 10 can be fixed very firmly to the foundation 90 by the elongated rod-shaped member 30 integrated with the anchor shaft 40, making it possible to increase the height of the wall panel 10. Accordingly, according to this embodiment, it is possible to construct a tall wall structure that fully demonstrates its function as a "screen".

[0055] Although preferred embodiments of the present invention have been described above, the present invention is not limited to the above embodiments, and various improvements and design changes are possible without departing from the spirit of the present invention, as shown below.

[0056] For example, although the wall panel 10 has a hollow structure, its internal space can be filled with materials with a high porosity, such as glass fiber or foamed resin. This makes it possible to construct a wall structure made of wall materials with high sound insulation (sound absorption and sound blocking) properties.

[0057] Furthermore, in the above embodiment, an example was given in which the female thread member 70 is a combination of a first female thread member 71, which has the same configuration as the connecting pipe 50, and a second female thread member 72, which is a nut. However, the invention is not limited to this, and the female thread member 70 may be made up of a single nut having a female thread that screws into the male thread 30m of the long rod-shaped member 30.

[0058] However, the fact that the female screw member 70 is a combination of a first female screw member 71 and a second female screw member 72, as in the above embodiment, has the advantage that even if the male screw 30m of the long rod-shaped member 30 has a special thread size or pitch, the long rod-shaped member 30 can be fastened to the wall panel 10 using a commercially available nut. In other words, if the female screw of the female screw hole 60f of the base plate 60 is made to have the same configuration as the female screw of a commercially available nut, and the second female screw member 72 is made to have a commercially available nut, and the male screw 50m formed on a part of the outer surface of the connecting pipe 50 is screwed into the female screw of the female screw hole 60f, then by reusing the member prepared as the connecting pipe 50 as the first female screw member 71, the long rod-shaped member 30 can be fastened to the wall panel 10 using a commercially available nut via the first female screw member 71. [Explanation of Symbols]

[0059] 1 Fence material 10 Wall Panels 30 Long rod-shaped member 30m Male thread (male thread for long rod-shaped member) 40 Anchor shaft 40m Male thread (male thread for anchor shaft) 50 Connecting pipe 50f Female thread (female thread for connecting pipe) 50m Male thread (male thread for connecting pipe) 60 base plate 60f Female threaded hole 70 Female threaded component 90 Foundation

Claims

1. Hollow structure fence panels, At least near the upper and lower ends, male threads are formed on the elongated rod-shaped member through which the fence panel is inserted, A cylindrical member having female threads formed on its inner surface along its entire length, and a connecting pipe having a male thread near the lower end of the long rod-shaped member and a part of the female threads screwed together, An anchor shaft having a male thread formed on it that has the same configuration as the long rod-shaped member, and at least a portion of it being screwed into the remaining part of the female thread, The female screw member that fastens the long rod-shaped member to the wall panel is screwed into the male screw near the upper end of the long rod-shaped member. A fence material characterized by possessing the following features.

2. At least a portion of the outer surface of the connecting pipe has a male thread formed on it. The system further comprises a base plate having a female screw hole that engages with the male screw of the connecting pipe. The fence material according to feature 1.

3. A fence structure constructed using the fence material described in claim 1, The entire anchor shaft and a portion of the connecting pipe are embedded in the foundation. With the connecting pipe, which protrudes upward from the upper end surface of the base, inserted into the interior of the wall panel, the wall panel is supported by the base. A fence structure characterized by the following features.

4. A fence structure constructed using the fence material described in claim 2, The base plate is placed on the upper end surface of the foundation, The entire anchor shaft and a portion of the connecting pipe are embedded in the foundation. With the connecting pipe, which protrudes upward from the upper end surface of the foundation, inserted into the interior of the fence panel, the fence panel is placed on the base plate. A fence structure characterized by the following features.

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