JP4170553B2 - Antenna mounting device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an antenna mounting apparatus that supports an antenna that receives or transmits a satellite signal or a terrestrial signal, and more particularly to an antenna mounting apparatus that installs an antenna using a parapet formed on an upper part of a building.
[0002]
[Prior art]
When trying to install an antenna on the roof of a building such as a building, a waterproof sheet is usually laid on one side of the roof, so if you drill a hole that anchors the anchor to fix the antenna on the floor, The waterproof sheet will be destroyed, causing rain leakage. Therefore, an anchor bolt or the like cannot be driven.
Therefore, an antenna support device having a configuration disclosed in, for example, Japanese Patent Laid-Open No. 60-89102 that does not use anchor bolts is used. This is a base made of a frame that can place weights such as concrete blocks on the bottom of the mast to which the parabolic antenna is mounted. The weight is placed on the base and the mast is placed on the floor. It can be fixed without driving anchors.
[0003]
[Problems to be solved by the invention]
In recent years, with the increase in communication needs and the development of communication technology, information provision and communication systems using communication satellites have begun to be used. This is because information can be provided to a wide area without having to build a large infrastructure on the ground. However, a system using such a satellite has a problem that a dead area that cannot be received is formed in an area behind a high-rise building because the radio wave from the satellite has a high frequency of, for example, 12 GHz. is there.
[0004]
As a countermeasure, a gap filler is proposed in which a first antenna that receives satellite signals is installed on the rooftop of a building and the second antenna that is retransmitted is installed in an area where it cannot be received and is retransmitted as radio waves. The gap filler device can be formed at a low cost and is effective for a moving body.
[0005]
However, when implementing such a gap filler, the first antenna for receiving satellite signals can be installed on the roof of a building by the antenna support device disclosed in Japanese Patent Application Laid-Open No. 60-89102. The second antenna to be transmitted is simply installed on the roof of the building and has no effect on eliminating the insensitive area, and protrudes to the side or side of the building so that radio waves can be transmitted toward the insensitive area. It must be provided at the position, and the method of using the weight for installing the antenna cannot be used, which is troublesome.
[0006]
For example, it can be installed on the outer wall of a building that has already been built or protrude from the roof to the side of the building, but installation on the outer wall is difficult in terms of building standards and safety, and the form that protrudes from the roof to the side is Since the antenna support member cannot be fixed to the floor with an anchor, the structure becomes complicated, such as bolting inside the parapet.
Also, regarding the installation of a satellite receiving antenna that receives radio waves for re-transmission, it is not necessary to drive the anchor onto the roof, but it is necessary to carry a weight or the like, which is a burden on the operator.
[0007]
Then, this invention makes it a subject to provide the antenna attachment apparatus which can install one or several antennas easily in the building upper part in view of the said problem.
[0008]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, the invention of claim 1 includes a substantially rectangular fixed frame having a front surface, a back surface, and an upper surface, the lower and left and right directions being open, and a front body and a back surface constituting the front surface. A pressure contact plate that is disposed inside the back body to be opposed to each other and at least one of which is movable in the front-rear direction, and an antenna mounting mast that is erected on at least the front body of the front body or the upper surface made, while set covering the fixed frame to parapets, by the pressing plate said fixing frame installed fixed to sandwich the parapet, mast erected on the front body, a plurality of provided on the front body It is characterized in that it is supported at a plurality of places by the supporting means, and further, its lower end is supported by a supporting plate arranged on the floor surface .
[0011]
According to a second aspect of the present invention, in the first aspect of the present invention, the press contact plate disposed on the front body is movable in the front-rear direction by a single bolt screwed into the front body, and is provided with a rotation prevention provided on the fixed frame. It is possible to move without rotating by means.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, embodiments of the invention will be described in detail with reference to the drawings. FIG. 1 is a perspective view showing an example of an antenna mounting device according to the present invention, and FIG. 2 is a longitudinal sectional view of the antenna mounting device of FIG. 1 installed on a parapet. In the figure, 1 is a fixed frame, 2 is a pressure contact plate, 3 is a first mast, and 4 is a second mast.
[0013]
The fixed frame 1 has two frame bodies 5 (5a, 5b) formed by joining metal square members in a U-shape, with the open part facing down and the left and right facing in the front-rear direction. The front body 1a and the back body 1b are formed by connecting two horizontally long connecting pieces 6a, 6b, 6c at two positions on the front side (left side in the figure) and one position on the back side. A first mast erecting portion 8 for erecting the first mast 3 for mounting the antenna is formed on the upper and lower connecting pieces 6a and 6b provided on the front surface.
A second mast standing portion 11 for standing the second mast 4 is formed on the upper surface of the connecting piece 6 c provided on the back portion of the fixed frame 1, and the parapet 10 is sandwiched between the four lower portions of the frame body 5. Pressure contact plates 2 (2a, 2a, 2b, 2b) are provided facing each other in the front-rear direction.
[0014]
The first mast standing portion 8 formed on the front side includes a mast holding portion 13 having a substantially U-shaped recess provided at the center of the two connecting pieces 6a and 6b, and a bolt 14 from the front thereof. 13 includes a holding member 15 that presses and fixes the first mast 3 to the mast 13, and the mast holding portion 13 is formed with a screw hole 13 a into which a bolt 14 is screwed.
Further, if the fixed frame is installed with the first mast standing portion 8 facing forward, that is, facing the roof, the lower end of the first mast 3 can be supported by the floor surface 30 and further stabilized. As shown in FIG. 5, the lower end of the mast can be inserted and supported by arranging the support plate 25 provided with the cylinder body 25a for inserting and supporting the mast on the floor surface 3. In addition, although the 1st mast standing part has provided the mast holding | maintenance part two places up and down, you may add a connection piece and increase it further, and it is good also as a plate body which covers a front surface in that case.
[0015]
The 2nd mast standing part 11 formed in the upper surface of the fixed frame 1 consists of the screw holes 16 and 16 provided in two places of right and left of the connection piece 6c upper part, as shown in the 2nd mast mounting drawing of FIG. The long standing plate 18 is fixed to the base end of the mast, and two bolt insertion holes 18a are formed in the standing plate 18, and the standing plate is assembled to the connecting piece 6c by the two bolts 19, 2 antennas 27 can be attached.
[0016]
The front-side pressure contact plate 2a has a concave portion 20 for abutting bolts at the center of the rear surface, and the tip of a bolt 21 screwed into a screw hole provided in the lower portion of the left and right frame 5 is embedded in the concave portion 20. The pressing operation of the pressure contact plate 2 is possible stably. Further, a plate-like blocking plate 22 for preventing the press contact plate 2 from rotating in conjunction with the rotation of the bolt 21 is provided at the bottom of the frame body 5, and a tip locking piece formed by bending in an L shape. 22a is locked in a locking hole provided in the lower part of the press contact plate 2a, and the blocking plate 22 is provided so as to move back and forth together with the press contact plate 2a. The back side pressure contact plate 2b is fixed at a position facing the front side pressure contact plate.
Further, a cushioning material 23 made of a rubber material is stuck on the entire surface of the contact surfaces of all the press contact plates 2 so as not to damage the sandwiched body.
In this way, since the pressure contact plate is tightened at one point with a bolt, the force can be concentrated and a stable pressure contact force can be obtained, and the pressure contact plate does not rotate during the pressure contact operation because it has a stop plate as a rotation prevention means. The pressure contact operation can be easily performed.
[0017]
Next, an example of this fixed frame installation procedure will be described. First, the bolt 21 is operated so that it opens sufficiently wider than the thickness of the parapet that sets the distance between the opposing pressure contact plates 2, and the first mast standing portion is disposed on the front side in front, that is, on the roof side, to Cover the parapet from above so that the parapet is inserted into the opening. Specifically, the bolt 21 is screwed in consideration of the thickness of the front pressure plate 2a and the thickness of the parapet, and the tip of the blocking plate 22 is inserted and locked into the pressure plate 2a, and the concave portion 20 of the pressure plate 2a is locked. Insert the tip of the bolt 21 into
Then, the front pressure contact plate 2a is pushed out to the parapet side by operating the bolt 21, and the parapet is held together with the back pressure contact plate 2b. Thus, the fixed frame 1 is attached to the parapet.
[0018]
Then install the mast. When the mast is mounted in the order of the second mast 4 and the first mast 3, it is easy to work. The mast may be attached to the fixed frame 1 in advance, and the fixed frame 1 may be put on the parapet. Finally, the antenna is attached to the mast.
For example, when only a receiving antenna such as a parabolic antenna is installed, only the first mast 3 is attached to the fixed frame 1 fixed at a predetermined position as shown in FIG. 3, and the parabolic antenna 26 is attached to the mast 3. It only has to be attached.
[0019]
When a so-called gap filler device is configured by installing two antennas such as a receiving antenna and a retransmitting antenna for the received radio wave, the first and second masts 3 are fixed to a fixed frame 1 fixed at a predetermined position. , 4 are attached, and a receiving antenna is attached to the first mast 3 and a transmitting antenna is attached to the second mast 4, so that the transmitting antenna attached to the second mast 4 is a building wall surface as shown in FIG. Since it can be installed on the same surface as or protruding from the wall surface, radio waves can be sent out to the back of the building where satellite radio waves are difficult to reach, and the gap filler function can be fully exhibited.
Since the transmission antenna used for the gap filler or the like is relatively small, a plurality of transmission antennas can be provided simultaneously on the second mast 4 as shown in FIG.
[0020]
Thus, since the antenna is installed with the fixed frame attached to the parapet, it is not necessary to carry a heavy object such as a weight or its mounting table or a large-sized member, and the burden on the operator can be reduced. In addition, since anchor bolts are not used, there is no need to drill holes in the floor or parapet, and the waterproof structure on the roof will not deteriorate. In addition, since the first mast can be supported in the middle of the mast, and the lower end of the mast can also be supported, even an antenna that requires high support strength such as a parabolic antenna can be stably fixed. be able to.
[0021]
Note that the fixed frame of the above embodiment is a structure in which the left and right frames are connected and integrated by connecting pieces, but the frame and connecting pieces are carried separately and connected by bolting or the like at the antenna installation site. May be. Moreover, although the 2nd mast standing part is formed in the upper part of a back part frame, a frame or a board can be arrange | positioned in the center of an upper surface, for example, and can also be provided there.
[0022]
【The invention's effect】
As described above in detail, according to the invention of claim 1, since it is not necessary to drive anchor bolts onto the roof, the waterproof structure is not deteriorated, and there is no need to place weights. It is easy to install. Also, just a simple operation for holding the parapet, Since it is possible to Fit the at least one antenna of the two antennas, it is also easy to implement gap filler apparatus.
[0023]
Further, since the mast erected on the front body is supported in the middle by a plurality of support means , even a relatively long mast can be easily supported.
[0024]
Furthermore, since the lower end of the mast is also supported by a support plate arranged on the floor surface , the support of the mast can be made more robust, and an antenna that is susceptible to wind resistance, such as a parabolic antenna. But can be installed without difficulty.
[0025]
According to the invention of claim 2 , in addition to the effect of claim 1, since it does not rotate when moving the press contact plate, the press contact operation is easy, and the press contact force is concentrated for one-point tightening with a bolt. Easy to work with pressure.
[Brief description of the drawings]
FIG. 1 is a perspective view of an antenna mounting apparatus showing an example of an embodiment of the present invention.
2 (a) is a longitudinal sectional view of the antenna mounting device of FIG. 1 attached to a parapet, and FIG. 2 (b) is an enlarged view of part A thereof;
3 is a perspective view showing a state in which a satellite reception antenna is attached to the antenna attachment device of FIG. 1. FIG.
4 is a perspective view showing a state in which a transmission antenna is attached to the antenna attachment device of FIG. 1. FIG.
[Explanation of symbols]
1 .... fixed frame, 1a ... front body, 1b ... back body, 2, 2a, 2b ... pressure welding plate, 3 ... first mast, 4 ... second mast, 5 ... frame body, 6 ..Connecting piece, 8 ..First mast standing part, 10 ..Parapet, 11 ..Second mast standing part, 13 ..Mast holding part, 15 ..Nipping member, 22. , 22a .. locking piece, 25 .. support plate.

Claims (2)

A substantially rectangular fixed frame having a front surface, a back surface, and an upper surface, the lower and left and right directions being open, and a front body that constitutes the front surface and an inner side of the back body that constitutes the back surface, One is composed of a pressure contact plate movable in the front-rear direction and an antenna mounting mast standing on at least the front body of the front body or the upper surface,
Said fixed frame while setting covered in parapet, the fixing frame installed fixed to sandwich the parapet by the pressure plate,
The mast erected on the front body is supported at a plurality of locations by a plurality of support means provided on the front body, and the lower end thereof is supported by a support plate arranged on the floor surface. apparatus. Pressure plate disposed on the front body is movable in the longitudinal direction by one bolt which is screwed into the front body, according to claim 1, wherein movable is without rotating by a rotation preventing means provided on the fixed frame Antenna mounting device.

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