Antenna mount

Abstract

To provide a robust and easily assembled antenna stand. [Solution] The antenna mount 10 has three legs 11, three arms 16, a joint 21 which is the connecting portion between the legs 11 and the arms 16, a first reinforcing part, and a second reinforcing part 26. An arm 16 is connected to the upper end of each leg 11 via the joint 21, and at each joint 21, the arm 16 rotates around the joint 21, allowing it to bend freely in the lateral direction (horizontal direction), and the leg 11 rotates around the joint 21, allowing it to bend freely in the longitudinal direction (vertical direction), thereby transforming between a folded state and an unfolded supporting state.

Description

[Technical Field]

[0001] The present invention relates to an antenna mount. [Background technology]

[0002] Conventionally, in disaster-stricken areas where communication networks are cut off due to emergencies such as disasters, simple antennas are installed to relay radio waves received and transmitted by wireless communication devices such as mobile phones to base stations, etc. When roads or railways are blocked due to natural disasters or accidents, transportation is unavailable, and simple antennas must be transported to the disaster area by hand. For example, the antenna support stand described in Patent Document 1 below (hereinafter referred to as the "Publicly Known Patent Document 1 Invention") has three support legs extending radially from the stand body, and the support legs are detachable, so that it can be easily transported by hand by disassembling it. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 11-41015 Summary of the Invention [Problem to be solved by the invention]

[0004] However, when a mount such as the invention disclosed in the above-mentioned document 1 is used in a disaster area, for example, in a region with heavy snowfall, it is necessary to install it firmly even in a deep snow environment and ensure an environment in which the antenna can function. Also, since people who are familiar with installing mounts are not necessarily working in disaster areas, a structure that can be easily assembled by anyone is preferable.

[0005] The present invention has been proposed in view of the above circumstances, and has as its object to provide an antenna stand that is robust and easy to assemble. [Means for solving the problem]

[0006] In order to achieve the above object, the antenna stand of the present invention has a plurality of legs, and arms connected to the upper ends of the legs to connect the legs together and arranged between the legs, and the connecting parts of the legs and the arms form joints, so that the antenna stand can be transformed into a supported state in which the antenna can be supported at the upper ends of the legs, or a folded state in which the antenna can be folded and transported, and one of the joints is a detachable joint that allows the leg and the arm to be detached, and in the supported state, the leg and the arm are connected at the detachable joint, the leg stands up vertically, and the arm extends horizontally between adjacent legs, and in the folded state, the leg and the arm are detached at the detachable joint, the leg is bent at the joint to be directed horizontally, and the arm is bent at the joint to approach each other.

[0007] The antenna mount according to the present invention is characterized in that the arm portions have a first reinforcing portion that spans and connects the arm portions together in the supported state.

[0008] The antenna mount according to the present invention is characterized in that the arm portion has a second reinforcing portion that is connected across the arm portion and the leg portion in the supported state.

[0009] The antenna mount of the present invention is characterized in that the first reinforcing part is attached to the upper surface of the arm portion and is detachable, and the second reinforcing part is attached to the lower surface of the arm portion and is detachable.

[0010] The antenna mount according to the present invention is characterized in that the length of the legs is 30 to 65 centimeters.

[0011] In the antenna mount according to the present invention, the arm portion is composed of a first arm portion, a second arm portion, and a third arm portion, the leg portion is composed of a first leg portion, a second leg portion, and a third leg portion, one end of the first arm is connected to the first leg, the other end of the first arm is detachable to the third leg, one end of the second arm is connected to the second leg, the other end of the second arm is connected to the first leg, one end of the third arm is connected to the second leg, and the other end of the third arm is connected to the third leg, In the supported state, the other end of the first arm and the third leg are connected, so that the first arm, the second arm, and the third arm are arranged in a triangular shape, and in the folded state, the other end of the first arm is detached from the third leg, so that the first arm and the second arm are close to each other, the second arm and the third arm are close to each other, the first leg is close to the first arm and the second arm, the second leg is close to the second arm and the third arm, and the third leg is close to the third arm. [Effects of the Invention]

[0012] The antenna stand according to the present invention has a plurality of legs and arms connected to the upper ends of the legs to connect the legs together and disposed between the legs, the connection portions of the legs and arms forming joints that allow the stand to transform into a supported state in which the upper ends of the legs can support an antenna, or a folded state in which the stand can be folded and transported, one joint being a detachable joint that allows the leg and arm to be detached, and in the supported state, the leg and arm are connected at the detachable joint, so that the leg stands up vertically and the arm extends horizontally between adjacent legs, and in the folded state, the leg and arm are detached at the detachable joint, so that the legs are bent at the joint to be oriented horizontally and the arms are bent at the joint to move closer to each other. Because the legs and arms are connected at the detachable joint and can be rotated to reach the supported state, assembly is easy. Furthermore, because the legs are oriented vertically, they stand upright relative to the installation surface, allowing the antenna to be securely supported at a position higher than the snow, even in deep snowy environments. Meanwhile, in the folded state, the legs and arms are detached at the detachable joints, and the legs and arms are oriented horizontally, allowing them to be bundled together and therefore enabling transportation. As described above, because the arms and legs can be detached from each other at a single point (the detachable joints), transformation is possible, and assembly is easy.

[0013] In the antenna mount according to the present invention, the arms have a first reinforcing portion that connects the arms together in a supported state. In the supported state, the arms are connected together, making the mount sturdy.

[0014] In the antenna mount according to the present invention, the arm portion has a second reinforcing portion that is connected across the arm portion and the leg portion in the supported state. In the supported state, the connection between the arm portion and the leg portion makes the mount sturdy.

[0015] In the antenna mount according to the present invention, the first reinforcing part is detachably attached to the upper surface of the arm part, and the second reinforcing part is detachably attached to the lower surface of the arm part. In the folded state, the first reinforcing part and the second reinforcing part are housed in the arm part, so the components are unified and not bulky.

[0016] The antenna mount according to the present invention has legs that are 30 to 65 centimeters long, so that the antenna can be securely supported at a position higher than the snow, even in deep snowy environments.

[0017] In the antenna stand of the present invention, the arms are composed of a first arm, a second arm, and a third arm, and the legs are composed of a first leg, a second leg, and a third leg, one end of the first arm is connected to the first leg, the other end of the first arm is detachable to the third leg, one end of the second arm is connected to the second leg, the other end of the second arm is connected to the first leg, one end of the third arm is connected to the second leg, and the other end of the third arm is connected to the third leg, and in a supported state, the other end of the first arm is connected to the third leg, so that the first arm, the second arm, and the third arm are arranged in a triangular shape, and in a folded state, the other end of the first arm is detached from the third leg, the first arm and the second arm are close to each other, the second arm and the third arm are close to each other, the first leg is close to the first arm and the second arm, the second leg is close to the second arm and the third arm, and the third leg is close to the third arm. In the supported state, the arms are arranged in a triangular shape, which allows the antenna to stand on the installation surface more stably and support the antenna compared to square or circular shapes. On the other hand, in the folded state, the arms and legs are gathered close enough to be bundled together, making it easy to transport. [Brief explanation of the drawings]

[0018] [Figure 1] FIG. 1 is a plan view of an antenna stand according to an embodiment of the present invention in a folded state. [Figure 2] FIG. 2 is a side view of the antenna stand according to the embodiment of the present invention in a folded state. [Figure 3] FIG. 3 is a first explanatory plan view of a modified antenna pedestal according to an embodiment of the present invention, showing the antenna pedestal in the process of being transformed from a folded state to a supporting state. [Figure 4]FIG. 4 is a second explanatory plan view showing a modified state in which the antenna pedestal according to the embodiment of the present invention is in the middle of being transformed from a folded state to a supporting state. [Figure 5] FIG. 5 is a second explanatory side view showing a modified state in which the antenna pedestal according to the embodiment of the present invention is in the middle of being transformed from a folded state to a supporting state. [Figure 6] FIG. 6 is a side view of the antenna pedestal according to the embodiment of the present invention in a supported state. [Figure 7] FIG. 7 is a plan view of the antenna pedestal according to the embodiment of the present invention in a supported state. [Figure 8] FIG. 8 is a side view of the antenna stand according to the embodiment of the present invention in a supported state with the antenna tripod attached. [Figure 9] FIG. 9 is a plan view of the antenna stand according to the embodiment of the present invention in a supported state with the antenna tripod attached. [Figure 10] FIG. 10 is a plan view of the arm portion of the antenna pedestal according to the embodiment of the present invention. [Figure 11] FIG. 11 is a side view of the arm portion of the antenna pedestal according to the embodiment of the present invention. [Figure 12] FIG. 12 is a plan view of a first reinforcing part of the antenna pedestal according to the embodiment of the present invention. [Figure 13] FIG. 13 is a plan view of the second reinforcing part of the antenna pedestal according to the embodiment of the present invention. [Figure 14] FIG. 14 is a side view showing a state in which an antenna stand is attached to the antenna pedestal according to the embodiment of the present invention when the antenna pedestal is in a supported state. [Figure 15] FIG. 15 is a plan view showing a state in which an antenna stand is attached to the antenna pedestal according to the embodiment of the present invention when the antenna pedestal is in a supported state. [Figure 16] FIG. 16 is a side view showing an opening / closing joint of an antenna stand attached to an antenna pedestal according to an embodiment of the present invention. [Figure 17]FIG. 17 is a plan view showing an opening / closing joint of an antenna stand attached to an antenna pedestal according to an embodiment of the present invention. [Figure 18] FIG. 18 is a first perspective view for explaining the operation of the attachment / detachment portion of the antenna stand attached to the antenna pedestal according to the embodiment of the present invention. [Figure 19] FIG. 19 is a second explanatory perspective view showing the operation of the detachable portion of the antenna stand attached to the antenna pedestal according to the embodiment of the present invention. [Figure 20] FIG. 20 is a third explanatory perspective view showing the operation of the detachable portion of the antenna stand attached to the antenna pedestal according to the embodiment of the present invention. [Figure 21] FIG. 21 is a side view of the essential parts of another form of antenna stand attached to the antenna pedestal according to the embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0019] An antenna pedestal 10 according to an embodiment of the present invention will now be described with reference to the drawings. FIGS. 1 to 7 show the process of deformation of the antenna pedestal 10 according to this embodiment, and FIGS. 8 and 9 show the antenna pedestal 10 supporting an antenna (more precisely, a tripod is shown, and the antenna is omitted). As shown in FIGS. 1 to 7, the antenna pedestal 10 transforms from a folded state to an unfolded supporting state, and also from the supporting state to the folded state. As shown in FIGS. 1 and 2, the antenna pedestal 10 in the folded state is elongated and can be folded into a single unit, so that it can be stored in, for example, a dedicated storage bag (not shown), and can be transported manually. On the other hand, as shown in FIGS. 6 and 7, the antenna pedestal 10 in the supporting state stands on its own on the installation surface, so that it can support an antenna, as shown in FIGS. 8 and 7.

[0020] As shown in FIGS. 1 and 2, the antenna mount 10 has three legs 11, three arms 16, joints 21 connecting the legs 11 and arms 16, a first reinforcing portion 25 (see FIG. 12), and a second reinforcing portion 26 (see FIG. 13). Each leg 11 has a long rectangular prism shape and is approximately 30 to 65 centimeters long. Preferably, the length of each leg 11 is approximately 54 centimeters long. Each arm 16 is also long and is approximately 70 to 90 centimeters long. Preferably, the length of each arm 16 is approximately 88.2 centimeters long. An arm 16 is connected to the upper end of each leg 11 via the joints 21, and the arm 16 is disposed between the legs 11. A grounding portion 15 is connected to the lower end of each leg 11. The ground contact portion 15 is made up of two overlapping plate-like pieces, which are fastened at one point. By rotating the second plate-like piece relative to the first plate-like piece, the ground contact portion 15 expands, and the installation area on the installation surface increases (see the bottom ground contact portion 15 in Figure 7). At each joint 21, the arm 16 rotates around the joint 21, allowing it to bend freely in the lateral direction (horizontal direction). At each joint 21, the leg 11 rotates around the joint 21, allowing it to bend freely in the longitudinal direction (vertical direction). Each leg 11 and each arm 16 are connected to each joint 21 by bolts, which allow it to deform freely when loosened and are fastened when tightened.

[0021] The leg 11 is made up of a first leg 12, a second leg 13, and a third leg 14, and the arm 16 is made up of a first arm 17, a second arm 18, and a third arm 19. The joint 21 is made up of a first joint 22 and a second joint 23 that are connected to the leg 11 and the arm 16 in advance, and a detachable joint 24 that allows the leg 11 and the arm 16 to be detached from each other.

[0022] One end of the first arm 17 is connected to the upper end of the first leg 12 via a first joint 22, and the other end of the first arm 17 is connectable to the upper end of the third leg 14 via a detachable joint 24. The detachable joint 24 is connected to the upper end of the third leg 14 in advance. One end of the second arm 18 is connected to the upper end of the second leg 13 via a second joint 23, and the other end of the second arm 18 is connected to the upper end of the first leg 12 via the first joint 22. One end of the third arm 19 is connected to the upper end of the second leg 13 via the second joint 23, and the other end of the third arm 19 is connected to the upper end of the third leg 14 via the detachable joint 24.

[0023] In the folded state, the other end of the first arm 17 is detached from the detachable joint 24, and the first leg 12 and the first arm 17 remain connected. The first leg 12 is bent at the first joint 22 and lies horizontally on the installation surface. The second leg 13 is bent at the second joint 23 and lies horizontally on the installation surface. The third leg 14 is bent at the detachable joint 24 and lies horizontally on the installation surface. The first arm 17 and the second arm 18 are bent at the first joint 22 and are close to each other. The second arm 18 and the third arm 19 are bent at the second joint 23 and are close to each other. The first leg 12 is close to the first arm 17 and the second arm 18. The second leg 13 is close to the second arm 18 and the third arm 19. The third leg 14 is adjacent to the third arm 19 and the first arm 17. Therefore, in the folded state, the first leg 12, the second leg 13, the third leg 14, the first arm 17, the second arm 18, and the third arm 19 are aligned in roughly the same longitudinal direction in a lying state and form a bundle.

[0024] As shown in Fig. 3, the first arm 17 and the second arm 18 are deployed by rotating about the first joint 22, and the second arm 18 and the third arm 19 are deployed by rotating about the second joint 23. As shown in Figs. 4 and 5, when the other end of the first arm 17 is connected to the third leg 14 via the detachable joint 24, the first arm 17, the second arm 18, and the third arm 19 are arranged in a triangular shape. The first arm 17 extends laterally between the adjacent first leg 12 and the adjacent third leg 14, the second arm 18 extends laterally between the adjacent first leg 12 and the adjacent second leg 13, and the third arm 19 extends laterally between the adjacent second leg 13 and the adjacent third leg 14.

[0025] 4 and 5, when the first leg 12 rotates around the first joint 22 and rises up in the vertical direction, the second leg 13 rotates around the second joint 23 and rises up in the vertical direction, and the third leg 14 rotates around the detachable joint 24 and rises up in the vertical direction, the antenna pedestal 10 enters the supported state as shown in Fig. 6. In the supported state, the second reinforcing part 26 is further connected between the first arm 17 and the first leg 12, between the second arm 18 and the first leg 12, between the second arm 18 and the second leg 13, between the third arm 19 and the second leg 13, between the third arm 19 and the third leg 14, and between the first arm 17 and the third leg 14. Furthermore, as shown in Figure 7, a first reinforcing portion 25 is connected across the first arm portion 17 and the second arm portion 18, a first reinforcing portion 25 is connected across the second arm portion 18 and the third arm portion 19, and a first reinforcing portion 25 is connected across the first arm portion 17 and the third arm portion 19.

[0026] As shown in FIGS. 8 and 9, the antenna mount 10 is in a supported state, and the antenna tripod 5 is attached to the upper ends of the legs 11.

[0027] The first reinforcing portion 25 and the second reinforcing portion 26 are attached to the respective arm portions 16 and are detachable from the arm portions 16. The arm portions 16, the first reinforcing portion 25, and the second reinforcing portion 26 will now be described with reference to the drawings. Figures 10 and 11 show the arm portion 16. Figure 12 shows the first reinforcing portion 25, and Figure 13 shows the second reinforcing portion 26.

[0028] As shown in Figure 10, each arm portion 16 is longitudinal and has an L-shaped cross section. A plurality of mounting holes 20 are formed in the arm portion 16, and bolts, nuts, washers, etc. are attached to the mounting holes 20 as appropriate. The first reinforcing portion 25 is attached to the upper surface of the arm portion 16 and secured with bolts. The second reinforcing portion 26 is attached to the lower surface of the arm portion 16 and secured with bolts. Therefore, the widths of the first reinforcing portion 25 and the second reinforcing portion 26 are either the same as or narrower than the width of the arm portion 16.

[0029] As shown in Fig. 12, the first reinforcing portion 25 has a long, flat plate shape and is formed with a plurality of first reinforcing portion mounting holes 27. As shown in Fig. 13, the second reinforcing portion 26 has a flat, twisted plate shape and is formed with second reinforcing portion mounting holes 28 at both ends. That is, the second reinforcing portion 26 is connected to the side surfaces of each leg portion 11 and the undersides of each arm portion 16, so that both ends are twisted.

[0030] One first reinforcing part 25 is placed on the upper surface of the arm part 16, and bolts or the like are passed through the mounting hole 20 and the first reinforcing part mounting hole 27. One second reinforcing part 26 is placed on the underside of one end of the arm part 16, and another second reinforcing part 26 is placed on the underside of the other end, and bolts or the like are passed through the mounting hole 20 and the second reinforcing part mounting hole 28, respectively. Thus, one first reinforcing part 25 and two second reinforcing parts 26 are attached to the arm part 16.

[0031] The antenna stand 10 is configured as described above. Next, the effects of the antenna stand 10 will be described.

[0032] In the folded state, the antenna mount 10 configured as described above has the third leg 14 and the first arm 17 detached at the detachable joint 24, with the legs 11 and the arms 16 lying flat on the installation surface and aligned in roughly the same longitudinal direction (see FIG. 1 ), making it easy to transport manually. Meanwhile, the third leg 14 and the first arm 17 are connected via the detachable joint 24, and the support state is achieved by rotating the legs 11 and the arms 16 (see FIG. 6 ), making assembly easy. In addition, in the support state, the legs 11 are oriented vertically and stand upright relative to the installation surface, allowing the antenna 1 to be securely supported at a height higher than the snow (see FIG. 8 ). In particular, the height of each leg 11 is approximately 30 to 65 centimeters, allowing the antenna 1 to be securely supported at a high position even in deep snow. As described above, the first arm 17 and the third leg 14 are detached at one point (detachable joint 24) and connected with a single bolt provided, so even someone unfamiliar with assembly can perform the work with just one tool such as a wrench.

[0033] The first reinforcing portion 25 and the second reinforcing portion 26 are attached to the respective arm portions 16 and are detachable from the arm portions 16. In the folded state, the first reinforcing portion 25 and the second reinforcing portion 26 are housed in the respective arm portions 16, so the components are compact and not bulky. In the supported state, the arms 16 are connected to each other by the first reinforcing portion 25, making the device sturdy, and the arms 16 and legs 11 are connected to each other by the second reinforcing portion 26, making the device even more sturdy. In other words, the arms 16 and the legs 11 are constrained to each other, preventing them from unintentionally rotating at their respective joints 21. Furthermore, the length of the arms 16 is approximately 70 to 90 centimeters, making it easy to transport manually.

[0034] In the supported state, each arm 16 is arranged in a triangular shape, which allows it to stand independently on the installation surface more stably than a square or circular shape, and supports the antenna 1. In addition, the grounding portion 15, which is made up of two overlapping plate-like pieces, unfolds and spreads out, allowing it to stand independently on the installation surface stably. The installation surface can rotate three-dimensionally relative to each leg 11 to maintain any desired orientation, and the height relative to each leg 11 can also be fine-tuned.

[0035] Next, the antenna stand 40 that can be attached to and detached from the antenna mount 10 will be described with reference to the drawings. Figures 14 and 15 show the antenna stand 40 attached to the antenna mount 10. The antenna stand 40 is used in place of an existing stand (not shown) that is an accessory to the antenna 1, for example, when the existing stand is weak or when the height of the existing stand is low.

[0036] 14 and 15 , the antenna stand 40 has a metal detachable portion 41 to which the antenna 1 is attached and detached, a metal opening / closing joint 47 connected to the bottom of the detachable portion 41, and three metal stand legs 50 extending radially from the opening / closing joint 47. Each stand leg 50 has a long rectangular prism shape and opens and closes from the opening / closing joint 47. The tip of each stand leg 50 has a connecting portion 51 for connecting to the upper end of the leg 11 of the antenna pedestal 10. Therefore, the antenna stand 40 is connected to the antenna pedestal 10 by connecting the open stand leg 50 to the leg 11 of the antenna pedestal 10. Note that the leg 11 of the antenna pedestal 10 may have the connecting portion 51.

[0037] Here, the opening / closing joint 47 and the detachable part 41 will be described in detail with reference to the drawings. Figures 16 and 17 show the opening / closing joint 47, and Figures 18 to 20 show the detachable part 41.

[0038] 16 and 17, the opening / closing joint 47 is trifurcated and has three joint bases 48. Each joint base 48 has a pair of base pieces 49 facing each other, and a stand leg 50 is connected between the base pieces 49. A detachable part 41 is formed on the top surface of the opening / closing joint 47.

[0039] 18 to 20, the support part 2 of the antenna 1 is connected to the detachable part 41. The support part 2 has an engagement structure. The engagement structure is a structure that allows the hook part 3 to move in and out from the side of the support part 2. In other words, when no external force is applied to the push-down part 4 that is integrated with the hook part 3, the hook part 3 protrudes from the side of the support part 2, but when the push-down part 4 is pressed, the hook part 3 fits inside the support part 2.

[0040] The detachable portion 41 has a structure for preventing theft of the antenna 1, and includes a cylindrical locking portion 42 into which the support portion 2 of the antenna 1 is inserted and locked, and a cylindrical cover portion 43 that covers the locking portion 42. A locking hole 45 and a locking portion flange piece 46 are formed on the side of the locking portion 42. The hook-shaped portion 3 of the support portion 2 is locked into the locking hole 45. The locking portion flange piece 46 is a flat plate-like piece that extends in the vertical direction and protrudes outward from the side of the locking portion 42. Meanwhile, a cover portion flange piece 44 is formed on the side of the cover portion 43. The cover portion flange piece 44 is a flat plate-like piece that extends in the vertical direction and protrudes outward from the side of the locking portion 42.

[0041] Next, how to use the detachable part 41 will be explained. First, the cover part 43 is passed through the support part 2 of the antenna 1. Next, the locking part 42 is connected to the support part 2. Specifically, as the support part 2 is inserted into the locking part 42, the hook part 3 is pressed against the inner surface of the locking part 42 and is housed inside the support part 2, and the hook part 3 is locked into the locking hole 45 from the inside of the locking part 42. Finally, the cover part 43 is lowered along the support part 2, and the locking part 42 is covered by the cover part 43. The locking part flange piece 46 and the cover part flange piece 44 are overlapped, and the two are connected together by, for example, a padlock (not shown) or the like.

[0042] The antenna stand 40 is configured as described above. Next, the effects of the antenna stand 40 will be described.

[0043] The antenna stand 40 configured as described above is robust and has excellent durability, especially when used outdoors, because each component is made of metal. Furthermore, because the stand legs 50 can be opened and closed, the angle of the stand legs 50 relative to the opening and closing joints 47 can be freely selected, allowing the antenna 1 to be placed at a high position above the installation surface (see FIG. 15), resulting in high radio wave reception sensitivity.

[0044] The hook-shaped part 3 of the support part 2 of the antenna 1 is engaged with the engaging part 42 of the detachable part 41, and the engaging part 42 is covered by the cover part 43 of the detachable part 41, making it impossible to operate the engaging part 42 from the outside, and therefore preventing the support part 2 from being unintentionally detached from the detachable part 41 (see Figures 18 to 20). This prevents theft of the antenna 1.

[0045] When the locking portion flange piece 46 and the cover portion flange piece 44 are overlapped and connected together with, for example, a padlock, the cover portion 43 remains immobile while covering the locking portion 42, preventing the locking portion 42 from being unintentionally exposed and being manipulated (see Figures 18 to 20). This prevents theft of the antenna 1.

[0046] The tip of the stand leg 50 has a connecting portion 51 for connecting to the upper end of the leg 11 of the antenna mount 10, so that the antenna stand 40 is connected to the antenna mount 10 by connecting the open stand leg 50 to the leg 11 (see FIG. 14). By connecting the stand leg 50 to the antenna mount 10, the antenna 1 is positioned at an even higher position by the amount that it rises upward from the installation surface. This results in high radio wave reception sensitivity.

[0047] Next, an antenna stand 140 according to another embodiment will be described with reference to the drawings. Fig. 21 shows the main parts of the antenna stand 140. Note that the following mainly describes the configuration that differs from the antenna stand 40, and descriptions of the configuration that is the same as the antenna stand 40 are omitted as appropriate.

[0048] As shown in Figure 21, antenna stand 140 differs from antenna stand 40 in that the detachable portion 141 is elongated and rod-shaped, and that hook portions 152 are formed on each stand leg 150.

[0049] Since the detachable part 141 is a long rod, the position of the antenna 1 is relatively higher by an amount corresponding to its length. For example, if the detachable part 141 has an expandable structure or a structure in which another rod-shaped member (not shown) can be added, the length of the detachable part 141 can be changed as desired.

[0050] The hook portion 152 is disposed between the upper and lower ends of the stand leg 150, and is formed on the back side of the stand leg 150 when viewed from above. The hook portion 152 is a plate-like piece with a hole formed therein, a hook, a ring, or the like. A chain, string, or the like (hereinafter referred to as a "chain, etc."; not shown) is passed through each hook portion 152, and the degree to which the stand leg 150 is opened or closed varies depending on the length of the chain, etc. For example, when the length of the chain, etc. is short, the stand legs 150 are close to each other, so the degree of opening and closing is small. Therefore, the position of the antenna 1 is relatively high. On the other hand, when the length of the chain, etc. is long, the stand legs 150 are farther apart, so the degree of opening and closing is large. Therefore, the position of the antenna 1 is relatively low.

[0051] The detachable part 141 or the stand leg 150 allows the antenna 1 to be placed at a high position above the installation surface, resulting in high radio wave reception sensitivity. The antenna 1 may be, for example, an antenna 1a, an antenna 1b, or any other type (not shown).

[0052] In another embodiment of the present invention, the first reinforcing portion is attached to the leg portion. In another alternative embodiment, a second reinforcement is attached to the arm. In another alternative embodiment, a first reinforcing portion is attached to the underside of the arm and a second reinforcing portion is attached to the upper surface of the arm. In other embodiments, the first reinforcing portion and / or the second reinforcing portion are not present. In other embodiments, the legs may be any length, such as less than 30 centimeters or greater than 66 centimeters, and the length of the legs is selected depending on the amount of snow expected. In other embodiments, the number of legs and arms is arbitrary, and thus includes four or more legs and arms. In other embodiments, the length of the arm is optional. Thus, the arm length is less than 70 centimeters or greater than 91 centimeters. The length of the arm affects ease of transportation and is influenced by the size of the antenna stand, etc., and is therefore selected depending on the build, physical strength, and gender of the person carrying the arm, the size of the antenna and stand, etc. In another alternative embodiment, the antenna stand does not have an anti-theft mechanism. In another embodiment, the antenna stand does not have a connection part, and therefore the antenna stand is not connected to the antenna mount but stands directly on the mounting surface.

[0053] Although the embodiments of the present invention have been described in detail above, the present invention is not limited to the above-described embodiments, and various design modifications can be made to the present invention without departing from the scope of the claims. [Explanation of symbols]

[0054] 1,1a,1b antenna 2 Support section 3 Unicum 4 Press section 5. Tripod 10 Antenna stand 11 Legs 12 First leg 13 Second leg 14 Third leg 15 Grounding part 16 Arm 17 First arm 18 Second arm 19 Third arm 20 Mounting hole 21 Joints 22 First joint 23 Second joint 24 Detachable joint 25 First reinforcement part 26 Second reinforcement part 27 First reinforcement part mounting hole 28 Second reinforcement mounting hole 40,140 Antenna stand 41,141 Detachable part 42 Locking part 43 Cover part 44 Cover flange piece 45 Locking hole 46 Locking flange piece 47 Opening and closing joint 48 Joint base 49 Base piece 50,150 Stand legs 51 Connecting part 152 Hook part

Claims

1. An antenna stand having a plurality of legs, and arms connected to the upper ends of the legs to connect the legs together and disposed between the legs, wherein the connection portions between the legs and the arms form joints, and the stand can be transformed into a supporting state in which the upper ends of the legs can support an antenna, or into a folded state in which the stand can be folded and transported, one of the joints is a detachable joint that allows the leg and the arm to be detached from each other, In the supported state, the legs and the arms are connected at the detachable joints, the legs stand upright in the vertical direction, and the arms extend laterally between the adjacent legs; In the folded state, the legs and the arms are detached from each other at the detachable joints, the legs are bent at the joints to be oriented laterally, and the arms are bent at the joints to approach each other. An antenna mount characterized by:

2. The arm portion is a first reinforcing portion that is connected across the arm portions in the supported state; 2. The antenna mount according to claim 1.

3. The arm portion is a second reinforcing portion connected across the arm portion and the leg portion in the supporting state; 3. The antenna stand according to claim 1 or 2.

4. the first reinforcing portion is detachably attached to an upper surface of the arm portion, The second reinforcing portion is attached to the underside of the arm portion and is detachable.

4. An antenna mount according to claim 3 dependent on claim 2.

5. The length of the leg is between 30 centimeters and 65 centimeters.

3. The antenna stand according to claim 1 or 2.

6. the arm portion is composed of a first arm portion, a second arm portion, and a third arm portion, the leg portion is composed of a first leg portion, a second leg portion, and a third leg portion; one end of the first arm is connected to the first leg, and the other end of the first arm is detachably attached to the third leg; One end of the second arm is connected to the second leg, and the other end of the second arm is connected to the first leg, one end of the third arm is connected to the second leg, and the other end of the third arm is connected to the third leg; In the supported state, the other end of the first arm and the third leg are connected to each other, so that the first arm, the second arm, and the third arm are arranged in a triangular shape, In the folded state, the other end of the first arm is detached from the third leg, the first arm and the second arm are close to each other, the second arm and the third arm are close to each other, the first leg is close to the first arm and the second arm, the second leg is close to the second arm and the third arm, and the third leg is close to the third arm.

3. The antenna stand according to claim 1 or 2.

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