Frame for antenna

Abstract

To provide a frame for antenna capable of performing maintenance work and replacement work of an antenna simply, and of maintaining stability of the frame regardless of aged deterioration of an outer wall of a building.SOLUTION: A frame 1 for an antenna has a vertical strut member 11, a horizontal strut member 21, an L-shaped antenna fixing part 50 for fixing coupling members 31 to 33 and the antenna, and a support member 60 for the antenna fixing part protecting the antenna fixing part 50. At one end of the horizontal strut member 21, an outer wall surface fixing part 41 for fixing an outer wall surface of a parapet P is provided and in the center of the horizontal strut member 21, an inner wall surface fixing part 46 for fixing an inward overhang part PH of the parapet P is provided. The antenna fixing part 50 has a first antenna fixing part 51, a second antenna fixing part 52, and an L-shaped joint 53. The first antenna fixing part 51 and the support member 60 for the antenna fixing part are coupled to each other via a hinge region 70.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] This relates to antenna stands that are mainly installed on the roofs of buildings, etc. [Background technology]

[0002] With the recent spread of wireless communications, there has been an increasing demand for antennas to be installed on the roofs of buildings, etc. Antennas are being installed for a wide variety of purposes, including mobile phone base stations, television broadcast antennas, and antennas for internet connections.

[0003] Typically, these antennas are mounted directly on flat rooftop surfaces. However, in urban high-rise buildings and existing buildings, rooftop space is often limited, making efficient antenna installation necessary. For this reason, antennas are increasingly being installed on handrail-like structures called parapets that surround the roof, as disclosed in Patent Documents 1 and 2. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2003-179416 [Patent Document 2] Japanese Patent Publication No. 2022-026619 Summary of the Invention [Problem to be solved by the invention]

[0005] However, the antenna mounts disclosed in Patent Documents 1 and 2 are installed outdoors and are therefore exposed to wind, rain, and ultraviolet rays for long periods of time. Therefore, if the parts supporting the antenna rust and become damaged, it becomes difficult to retrieve the antenna for maintenance or inspection. The same applies to parapets, which have the problem of becoming unstable due to deterioration of the wall surface caused by wind, rain, and ultraviolet rays when exposed outdoors for long periods of time.

[0006] In view of the above-mentioned problems, an object of the present invention is to provide an antenna mount capable of maintaining stability of the mount regardless of deterioration over time of the outer wall (wall surface) of a building or other structure. [Means for solving the problem]

[0007] Therefore, in the present invention, there is provided a structure having two vertical support members extending vertically, a horizontal support member extending horizontally from the vertical support members, a connecting member extending vertically to the horizontal support members and connecting the horizontal support members to each other, an L-shaped antenna fixing part that supports the antenna, and an antenna fixing part support member that is placed on the connecting member and connects to the antenna support part, and an outer wall surface fixing part equipped with a bracket that fixes the outer wall surface side of the parapet is provided at the other end of the horizontal support member, and an inner wall surface fixing part equipped with a bracket that fixes the inward protruding part side of the parapet is provided at the center of the horizontal support member, and the bracket of the outer wall surface fixing part is The antenna stand has a first fixing part including an abutment surface facing vertically downward and abutting the upper surface of the parapet, and a second fixing part including an abutment surface perpendicular to the abutment surface of the first fixing part and abutting the outer wall surface of the parapet, and the bracket of the inner wall surface fixing part has a third fixing part including an abutment surface facing vertically upward and abutting the underside of the inward protruding part of the parapet, and a fourth fixing part facing perpendicular to the abutment surface of the third fixing part and abutting the inner wall surface of the inward protruding part of the parapet, and the antenna fixing part has a first antenna fixing part extending parallel to the horizontal support member, and a second antenna fixing part formed perpendicular to the first antenna fixing part.

[0008] In addition, the cross-sectional shape of the support member for the antenna fixing portion can be made concave, the first antenna fixing portion can be accommodated in the concave portion of the support member for the antenna fixing portion, and the first antenna fixing portion and the support member for the antenna fixing portion can be connected to each other via a hinge portion.

[0009] Furthermore, the hinge portion may be formed from a through bolt that passes through both side surfaces of the antenna fixing portion support member and the first antenna fixing portion, and two nuts that secure both ends of the through bolt. [Effects of the Invention]

[0010] The antenna mount of the present invention is provided with an outer wall fixing portion having a bracket for fixing the outer wall surface of the parapet, and an inner wall fixing portion having a bracket for fixing the inward protruding portion of the parapet. Therefore, the antenna mount of the present invention restrains the parapet on two sides on the outer wall surface side of the parapet (the outer wall surface of the parapet and the upper surface of the parapet) and at the same time restrains two sides on the inner wall surface side of the parapet (the inner wall surface of the parapet and the lower surface of the protruding portion on the inner wall side of the parapet), thereby achieving the effect of maintaining the stability of the antenna mount even if the wall surface of a building, such as an outer wall exposed to ultraviolet rays, wind, and rain, deteriorates over time.

[0011] In addition, in the antenna stand of the present invention, the L-shaped antenna fixing part is connected to the antenna fixing part support member via a hinge part, and the antenna fixing part can rotate around the hinge part. Therefore, during antenna maintenance and inspection, an operator can easily retrieve the antenna by simply lifting the antenna fixing part around the hinge part. [Brief explanation of the drawings]

[0012] [Figure 1] 1 is a front view of an antenna mount 1 according to the present invention. [Figure 2] FIG. 2 is a right side view of the antenna mount 1 of the present invention. [Figure 3] 1 is a plan view of an antenna mount 1 according to the present invention. [Figure 4] FIG. 2 is a perspective view of the antenna mount 1 of the present invention when installed on a parapet P. [Figure 5] FIG. 10 is a perspective view of the antenna fixing part 50 rotated by 90 degrees. [Figure 6] FIG. 10 is a perspective view of the antenna fixing part 50 rotated 180 degrees. DETAILED DESCRIPTION OF THE INVENTION

[0013] Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings. In the following, like elements in all drawings will be given the same reference numerals, and duplicate explanations will be omitted. Furthermore, in the explanations in the text, previously mentioned reference numerals will be used as necessary. Fig. 1 shows a front view of an antenna stand 1 according to one embodiment of the present invention, Fig. 2 shows a right side view of the antenna stand 1, Fig. 3 shows a plan view of the antenna stand 1, and Fig. 4 shows a perspective view (schematic diagram) of the vicinity of the parapet P when the antenna stand 1 is installed on the parapet P.

[0014] 1 to 3, the antenna mount 1 of the present invention is broadly composed of two vertical support members 11, 12, two horizontal support members 21, 22, three connecting members 31, 32, 33, an antenna fixing part 50, and an antenna fixing part support member 60 that supports the antenna fixing part 50. Each part that forms the antenna mount 1 will be explained individually below.

[0015] <Vertical support members 11 and 12> As shown in Figure 1, the vertical support members 11 and 12 are two members extending vertically. These vertical support members 11 and 12 are provided to ensure stability by raising the entire antenna mount 1. They can be made of a strong and durable metal material, such as stainless steel or aluminum alloy. Stainless steel has excellent corrosion resistance and is suitable for outdoor use, making it particularly suitable for antenna mounts exposed to wind and rain. On the other hand, aluminum alloy is equally effective because it is lightweight yet strong, and is easy to handle and install. These vertical support members 11 and 12 are firmly fixed to the floor when installed on the roof of a building, and serve to support the horizontal support members and connecting members described below.

[0016] In addition, by connecting two vertical support members 11 and 12 with a beam member 80 near the floor surface on which the antenna mount 1 of the present invention is installed, as shown in Figure 1, stability near the floor surface can be maintained. In addition, when fixing the antenna mount 1 to the floor surface, anchor bolts or chemical anchors (registered trademark) can be used to ensure strong grounding performance with the floor surface. The arrangement (mutual distance) of the two vertical support members 11 and 12 can be appropriately selected depending on the design load distribution and the structure of the building.

[0017] <Horizontal support members 21, 22> 2 to 4, the horizontal support members 21 and 22 are members that extend horizontally (from the inner wall side to the outer wall side of the building) from the above-mentioned vertical support members 11 and 12. The horizontal support members 21 and 22 and the vertical support members 11 and 12 are connected by means of welding, screws, or the like, and ensure the stability of the entire antenna mount 1, just like the vertical support members 11 and 12. As for the material, like the vertical support members 11 and 12, steel such as stainless steel or aluminum alloy can be used.

[0018] The horizontal support members 21 and 22 are connected to the vertical support members 11 and 12, allowing the entire structure to maintain consistent strength and durability. The horizontal support members 21 and 22 serve as reference points for appropriately adjusting the antenna installation position, and their length and cross-sectional shape are selected according to design requirements. For example, if the length is increased, adding a reinforcing rib to the middle section can prevent deflection and deformation. Furthermore, these members are highly resistant to external forces such as wind, rain, and earthquakes, so that the antenna will remain stable even after installation.

[0019] 1, 2, and 4, members (fixing portions) for installing and fixing the antenna mount to the parapet are provided at the tips and approximately the center of the horizontal support members 21, 22. As shown in Figures 1 and 4, these fixing portions are divided into exterior wall surface fixing portions 41, 42 provided at the other ends (on the exterior wall surface side of the parapet) of the horizontal support members 21, 22, and interior wall surface fixing portions 46, 47 provided near the middle positions of the horizontal support members 21, 22 and extending toward the floor surface (ground surface). Below, the exterior wall surface fixing portions 41, 42 and the interior wall surface fixing portions 46, 47 will be described individually.

[0020] As shown in Figures 1 and 2, the exterior wall surface fixing parts 41, 42 are equipped with brackets (e.g., metal fittings with an L-shaped cross section) for fixing the exterior wall surface of the parapet. Specifically, as shown in Figure 4, the bracket of the exterior wall surface fixing part 41 has a first fixing part 41a that faces vertically downward and includes an abutment surface that abuts against the upper surface of the parapet P, and a second fixing part 41b that includes an abutment surface that abuts against the exterior wall surface of the parapet P, perpendicular to the abutment surface of the first fixing part 41a. Therefore, the first and second fixing parts of the bracket of the exterior wall surface fixing part securely fasten the two surfaces of the parapet (exterior wall part of the building) P (the exterior wall surface of the building and the upper surface of the parapet P) to securely fix the horizontal support members 21, 22. The bracket is made of a high-strength metal and treated to be rust-resistant, ensuring stable fixing force over a long period of time.

[0021] As shown in FIG. 4 , the inner wall fixing portions 46, 47 each include a bracket for fixing the inward (inner wall side) protruding portion PH of the parapet P. That is, the bracket of the inner wall fixing portion 46 includes a third fixing portion 46a that faces vertically upward and includes an abutment surface that abuts against the underside of the inward protruding portion PH of the parapet P, and a fourth fixing portion 46b that abuts against the inner wall surface of the inward protruding portion PH of the parapet P, perpendicular to the abutment surface of the third fixing portion 46a. Therefore, the third and fourth fixing portions of the bracket of the inner wall fixing portion firmly fix the horizontal support member to the inside of the building and restrain two surfaces, the inner wall surface of the parapet P and the underside of the protruding portion PH of the parapet P, thereby preventing the antenna mount from tilting or falling toward the outer wall surface. In other words, the stability of the antenna mount is ensured where the antenna is installed, and communication quality can be maintained.

[0022] <Connecting members 31, 32, 33> As shown in Figures 2 to 4, the connecting members 31, 32, and 33 extend perpendicularly to the horizontal support members 21 and 22, i.e., perpendicularly to the two horizontal support members 21 and 22, connecting the two horizontal support members 21 and 22 to each other. These connecting members 31, 32, and 33 integrate the horizontal support members 21 and 22 together to improve the structural strength and stability of the entire mount. The connecting members 31, 32, and 33 are also essential for increasing the rigidity of the antenna mount 1 and preventing the two horizontal support members 21 and 22 from moving independently. Furthermore, the connecting members 31, 32, and 33 also serve to evenly distribute stress between the horizontal support members and the vertical support members.

[0023] By connecting the connecting members 31, 32, and 33 to the horizontal support members 21 and 22, the entire antenna mount 1 can resist external forces as a whole. In addition, the antenna fixing unit and the antenna fixing unit support member (described later) are placed above the connecting members 31, 32, and 33. Therefore, since the connecting members are connected to the horizontal support members 21 and 22 by connecting means such as bolts or welding, the connections between the respective members are strengthened, further improving the overall stability. Appropriate dimensions and cross-sectional shapes of the connecting members are selected depending on the installation environment and structural requirements.

[0024] <Antenna fixing parts 50, 51 to 53> The antenna fixing part 50 is a component for mounting an antenna of various communication devices such as a smartphone. This component plays an important role in stabilizing the position of the antenna and maximizing communication performance. As shown in Figures 1 to 4, the antenna fixing part 50 has three parts: a first antenna fixing part 51, a second antenna fixing part 52, and a joint 53.

[0025] As shown in Figures 2 to 4, the first antenna fixing part 51 is a part formed perpendicular to the second antenna fixing part 52, which will be described later. This part is used to adjust the vertical position of the antenna to be installed and fix it at an optimal angle. The first antenna fixing part 51 can also incorporate an extension mechanism or a movable mechanism for fine-tuning the height and angle of the antenna. This makes it easy to adjust the position even after the antenna has been installed.

[0026] The second antenna fixing portion 52 is located on the outer wall surface of the parapet P as shown in Figure 4, and is used to directly fix the antenna. This portion is designed to firmly hold the base of the antenna, and is strong and durable enough to prevent it from shaking due to wind, rain, or vibration. It can be made of stainless steel, which has excellent weather resistance, or a high-strength aluminum alloy. The second antenna fixing portion 52 can also be provided with bolt holes or clamps for fixing it to the base of the antenna.

[0027] As shown in Figures 1 to 4, the joint 53 is an L-shaped part (elbow) that connects the first antenna fixing part 51 and the second antenna fixing part 52 to each other, and serves to integrate the entire structure of the antenna fixing part 50 and ensure stability. This L-shaped joint 53 increases the rigidity at the joints between the various components and improves resistance to external forces. The materials and joining method are also selected according to the usage environment and the required strength. Generally, fastening means such as bolt fastening, screw fastening, and welding can be used.

[0028] <Antenna fixing portion support member 60> The antenna fixing portion support member 60 is a member installed to support the antenna fixing portion 50 as shown in Figures 1 to 4, and is placed above the connecting members 31 to 33. This stabilizes the position and direction of the antenna. The antenna fixing portion support member 60 has sufficient strength to support the weight of the antenna fixing portion 50, and exhibits stable support performance against vibrations and wind pressure. Furthermore, aluminum alloys and stainless steel, which are both strong and lightweight, can be used as materials for the support member, and angle iron and channel iron can be appropriately combined to form the support member.

[0029] <Hinge part 70> The hinge portion 70 is a portion that connects the first antenna fixing portion 51 and the antenna fixing portion support member 60 described above. Specifically, it is composed of a through-bolt that passes through both sides of the antenna fixing portion support member 60 and the first antenna fixing portion 51, and two nuts that secure both ends of the bolt. This makes it easy to adjust the angle of the antenna fixing portion 50, and facilitates antenna maintenance and inspection work after the antenna mount 1 is installed. The hinge portion 70 is designed to be durable and easy to operate, and is structured to withstand long-term use. Furthermore, it is desirable to install it in a position where workers can easily work on it (within reach), so that regular maintenance and adjustment work can be easily performed.

[0030] Next, the procedures for maintenance and inspection of the antenna fixing part (antenna) after the antenna mount 1 of the present invention shown in Figures 1 to 3 is installed on a parapet will be described with reference to the drawings. Figure 5 shows a perspective view of the antenna fixing part 50 (51 to 53) forming part of the antenna mount 1 of the present invention when rotated 90 degrees around the hinge part 70, and Figure 6 shows a perspective view of the antenna fixing part 50 (51 to 53) when rotated 180 degrees around the hinge part 70.

[0031] The antenna mount 1 of the present invention has a hinge portion 70 as shown in Figures 1 to 4, and therefore the antenna fixing portion 50 (51 to 53) can be rotated around the hinge portion 70. When the antenna is installed, the second antenna fixing portion 52, which forms part of the antenna fixing portion 50, is located on the outer wall surface side of the parapet P as shown in Figure 4. Since the antenna (not shown) is attached to the second antenna fixing portion 52, when performing maintenance and inspection of the antenna, the antenna fixing portion 50 (51 to 53) is rotated 90 degrees (raised up) around the hinge portion 70 as shown in Figure 5.

[0032] Thereafter, as shown in Fig. 6, the antenna fixing part 50 (51 to 53) is rotated another 90 degrees, that is, rotated 180 degrees around the hinge part 70 from the installed state of the antenna fixing part 50 (51 to 53) shown in Fig. 4. With this operation, the first antenna fixing part 51 is completely housed within the antenna fixing part support member 60. Therefore, in the state shown in Fig. 6, an antenna (not shown) can be safely and easily attached and detached from the second antenna fixing part 52.

[0033] In other words, in the antenna stand of the present invention, the L-shaped antenna fixing part is connected to the antenna fixing part support member via a hinge part, and the antenna fixing part can rotate around the hinge part. Therefore, during antenna maintenance and inspection, the worker can easily retrieve the antenna by simply lifting the antenna fixing part around the hinge part.

[0034] As described above, the antenna mount of the present invention is provided with an outer wall surface fixing portion equipped with a bracket for fixing the outer wall surface of the parapet, and an inner wall surface fixing portion equipped with a bracket for fixing the inward protruding portion of the parapet.

[0035] Therefore, the antenna mount of the present invention restrains the parapet on two sides on the outer wall side of the parapet (the outer wall surface of the parapet and the upper surface of the parapet), and at the same time restrains two sides on the inner wall side of the parapet (the inner wall surface of the parapet and the underside of the protruding part on the inner wall side of the parapet), thereby achieving the effect of maintaining the stability of the antenna mount even if the wall surface, such as the outer wall of a building that is exposed to ultraviolet rays, wind and rain, deteriorates over time. [Explanation of symbols]

[0036] 1 Antenna stand 11,12 Vertical support members 21, 22 Horizontal support members 31, 32, 33 Connecting members 41,42 External wall fixing part 41a 1st fixed part 41b 2nd fixed part 46,47 Inner wall fixing part 46a 3rd fixed part 46b 4th fixed part 50 Antenna fixing part 51 First antenna fixing part 52 Second antenna fixing part 53 Elbow joint 60 Support member for antenna fixing part 70 Hinge part 80 Beam material P Parapet PH Parapet overhang

Claims

1. The parapet has two vertical support members extending vertically, a horizontal support member extending horizontally from the vertical support members, a connecting member extending vertically to the horizontal support members and connecting the horizontal support members to each other, an L-shaped antenna fixing portion for supporting an antenna, and an antenna fixing portion support member placed on the connecting member and connecting to the antenna support portion, and an outer wall surface fixing portion equipped with a bracket for fixing the outer wall surface side of the parapet is provided at the other end of the horizontal support member, and an inner wall surface fixing portion equipped with a bracket for fixing the inward protruding portion side of the parapet is provided at the center of the horizontal support member, The bracket of the outer wall surface fixing portion has a first fixing portion including an abutment surface facing vertically downward and abutting against the upper surface of the parapet, and a second fixing portion including an abutment surface that abuts against the outer wall surface of the parapet perpendicular to the abutment surface of the first fixing portion, The bracket of the inner wall surface fixing portion has a third fixing portion including an abutment surface facing vertically upward and abutting against the underside of the inward protruding portion of the parapet, and a fourth fixing portion orthogonal to the abutment surface of the third fixing portion and abutting against the inner wall surface of the inward protruding portion of the parapet, The antenna mounting base is characterized in that the antenna fixing portion has a first antenna fixing portion extending parallel to the horizontal support member, and a second antenna fixing portion formed perpendicular to the first antenna fixing portion.

2. 2. The antenna stand according to claim 1, wherein the cross section of the support member for the antenna fixing portion is concave-shaped, the first antenna fixing portion is accommodated in the concave portion of the support member for the antenna fixing portion, and the first antenna fixing portion and the support member for the antenna fixing portion are connected to each other via a hinge portion.

3. 3. The antenna stand according to claim 2, wherein the hinge portion is formed from a through-bolt that penetrates both sides of the support member for the antenna fixing portion and the first antenna fixing portion, and two nuts that secure both ends of the through-bolt.

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